diff options
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/Makefile | 7 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 1052 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 6445 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h | 295 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/l2t.c | 665 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/l2t.h | 111 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/sge.c | 2831 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 3986 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_hw.h | 220 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_msg.h | 835 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 1298 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h | 2208 |
12 files changed, 19953 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/Makefile b/drivers/net/ethernet/chelsio/cxgb4/Makefile new file mode 100644 index 00000000000..498667487f5 --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/Makefile @@ -0,0 +1,7 @@ +# +# Chelsio T4 driver +# + +obj-$(CONFIG_CHELSIO_T4) += cxgb4.o + +cxgb4-objs := cxgb4_main.o l2t.o t4_hw.o sge.o diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h new file mode 100644 index 00000000000..f503dce4ab1 --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -0,0 +1,1052 @@ +/* + * This file is part of the Chelsio T4 Ethernet driver for Linux. + * + * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef __CXGB4_H__ +#define __CXGB4_H__ + +#include "t4_hw.h" + +#include <linux/bitops.h> +#include <linux/cache.h> +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/netdevice.h> +#include <linux/pci.h> +#include <linux/spinlock.h> +#include <linux/timer.h> +#include <linux/vmalloc.h> +#include <asm/io.h> +#include "cxgb4_uld.h" + +#define T4FW_VERSION_MAJOR 0x01 +#define T4FW_VERSION_MINOR 0x09 +#define T4FW_VERSION_MICRO 0x17 +#define T4FW_VERSION_BUILD 0x00 + +#define T5FW_VERSION_MAJOR 0x01 +#define T5FW_VERSION_MINOR 0x09 +#define T5FW_VERSION_MICRO 0x17 +#define T5FW_VERSION_BUILD 0x00 + +#define CH_WARN(adap, fmt, ...) dev_warn(adap->pdev_dev, fmt, ## __VA_ARGS__) + +enum { + MAX_NPORTS = 4, /* max # of ports */ + SERNUM_LEN = 24, /* Serial # length */ + EC_LEN = 16, /* E/C length */ + ID_LEN = 16, /* ID length */ + PN_LEN = 16, /* Part Number length */ +}; + +enum { + MEM_EDC0, + MEM_EDC1, + MEM_MC, + MEM_MC0 = MEM_MC, + MEM_MC1 +}; + +enum { + MEMWIN0_APERTURE = 2048, + MEMWIN0_BASE = 0x1b800, + MEMWIN1_APERTURE = 32768, + MEMWIN1_BASE = 0x28000, + MEMWIN1_BASE_T5 = 0x52000, + MEMWIN2_APERTURE = 65536, + MEMWIN2_BASE = 0x30000, + MEMWIN2_BASE_T5 = 0x54000, +}; + +enum dev_master { + MASTER_CANT, + MASTER_MAY, + MASTER_MUST +}; + +enum dev_state { + DEV_STATE_UNINIT, + DEV_STATE_INIT, + DEV_STATE_ERR +}; + +enum { + PAUSE_RX = 1 << 0, + PAUSE_TX = 1 << 1, + PAUSE_AUTONEG = 1 << 2 +}; + +struct port_stats { + u64 tx_octets; /* total # of octets in good frames */ + u64 tx_frames; /* all good frames */ + u64 tx_bcast_frames; /* all broadcast frames */ + u64 tx_mcast_frames; /* all multicast frames */ + u64 tx_ucast_frames; /* all unicast frames */ + u64 tx_error_frames; /* all error frames */ + + u64 tx_frames_64; /* # of Tx frames in a particular range */ + u64 tx_frames_65_127; + u64 tx_frames_128_255; + u64 tx_frames_256_511; + u64 tx_frames_512_1023; + u64 tx_frames_1024_1518; + u64 tx_frames_1519_max; + + u64 tx_drop; /* # of dropped Tx frames */ + u64 tx_pause; /* # of transmitted pause frames */ + u64 tx_ppp0; /* # of transmitted PPP prio 0 frames */ + u64 tx_ppp1; /* # of transmitted PPP prio 1 frames */ + u64 tx_ppp2; /* # of transmitted PPP prio 2 frames */ + u64 tx_ppp3; /* # of transmitted PPP prio 3 frames */ + u64 tx_ppp4; /* # of transmitted PPP prio 4 frames */ + u64 tx_ppp5; /* # of transmitted PPP prio 5 frames */ + u64 tx_ppp6; /* # of transmitted PPP prio 6 frames */ + u64 tx_ppp7; /* # of transmitted PPP prio 7 frames */ + + u64 rx_octets; /* total # of octets in good frames */ + u64 rx_frames; /* all good frames */ + u64 rx_bcast_frames; /* all broadcast frames */ + u64 rx_mcast_frames; /* all multicast frames */ + u64 rx_ucast_frames; /* all unicast frames */ + u64 rx_too_long; /* # of frames exceeding MTU */ + u64 rx_jabber; /* # of jabber frames */ + u64 rx_fcs_err; /* # of received frames with bad FCS */ + u64 rx_len_err; /* # of received frames with length error */ + u64 rx_symbol_err; /* symbol errors */ + u64 rx_runt; /* # of short frames */ + + u64 rx_frames_64; /* # of Rx frames in a particular range */ + u64 rx_frames_65_127; + u64 rx_frames_128_255; + u64 rx_frames_256_511; + u64 rx_frames_512_1023; + u64 rx_frames_1024_1518; + u64 rx_frames_1519_max; + + u64 rx_pause; /* # of received pause frames */ + u64 rx_ppp0; /* # of received PPP prio 0 frames */ + u64 rx_ppp1; /* # of received PPP prio 1 frames */ + u64 rx_ppp2; /* # of received PPP prio 2 frames */ + u64 rx_ppp3; /* # of received PPP prio 3 frames */ + u64 rx_ppp4; /* # of received PPP prio 4 frames */ + u64 rx_ppp5; /* # of received PPP prio 5 frames */ + u64 rx_ppp6; /* # of received PPP prio 6 frames */ + u64 rx_ppp7; /* # of received PPP prio 7 frames */ + + u64 rx_ovflow0; /* drops due to buffer-group 0 overflows */ + u64 rx_ovflow1; /* drops due to buffer-group 1 overflows */ + u64 rx_ovflow2; /* drops due to buffer-group 2 overflows */ + u64 rx_ovflow3; /* drops due to buffer-group 3 overflows */ + u64 rx_trunc0; /* buffer-group 0 truncated packets */ + u64 rx_trunc1; /* buffer-group 1 truncated packets */ + u64 rx_trunc2; /* buffer-group 2 truncated packets */ + u64 rx_trunc3; /* buffer-group 3 truncated packets */ +}; + +struct lb_port_stats { + u64 octets; + u64 frames; + u64 bcast_frames; + u64 mcast_frames; + u64 ucast_frames; + u64 error_frames; + + u64 frames_64; + u64 frames_65_127; + u64 frames_128_255; + u64 frames_256_511; + u64 frames_512_1023; + u64 frames_1024_1518; + u64 frames_1519_max; + + u64 drop; + + u64 ovflow0; + u64 ovflow1; + u64 ovflow2; + u64 ovflow3; + u64 trunc0; + u64 trunc1; + u64 trunc2; + u64 trunc3; +}; + +struct tp_tcp_stats { + u32 tcpOutRsts; + u64 tcpInSegs; + u64 tcpOutSegs; + u64 tcpRetransSegs; +}; + +struct tp_err_stats { + u32 macInErrs[4]; + u32 hdrInErrs[4]; + u32 tcpInErrs[4]; + u32 tnlCongDrops[4]; + u32 ofldChanDrops[4]; + u32 tnlTxDrops[4]; + u32 ofldVlanDrops[4]; + u32 tcp6InErrs[4]; + u32 ofldNoNeigh; + u32 ofldCongDefer; +}; + +struct tp_params { + unsigned int ntxchan; /* # of Tx channels */ + unsigned int tre; /* log2 of core clocks per TP tick */ + unsigned short tx_modq_map; /* TX modulation scheduler queue to */ + /* channel map */ + + uint32_t dack_re; /* DACK timer resolution */ + unsigned short tx_modq[NCHAN]; /* channel to modulation queue map */ + + u32 vlan_pri_map; /* cached TP_VLAN_PRI_MAP */ + u32 ingress_config; /* cached TP_INGRESS_CONFIG */ + + /* TP_VLAN_PRI_MAP Compressed Filter Tuple field offsets. This is a + * subset of the set of fields which may be present in the Compressed + * Filter Tuple portion of filters and TCP TCB connections. The + * fields which are present are controlled by the TP_VLAN_PRI_MAP. + * Since a variable number of fields may or may not be present, their + * shifted field positions within the Compressed Filter Tuple may + * vary, or not even be present if the field isn't selected in + * TP_VLAN_PRI_MAP. Since some of these fields are needed in various + * places we store their offsets here, or a -1 if the field isn't + * present. + */ + int vlan_shift; + int vnic_shift; + int port_shift; + int protocol_shift; +}; + +struct vpd_params { + unsigned int cclk; + u8 ec[EC_LEN + 1]; + u8 sn[SERNUM_LEN + 1]; + u8 id[ID_LEN + 1]; + u8 pn[PN_LEN + 1]; +}; + +struct pci_params { + unsigned char speed; + unsigned char width; +}; + +#define CHELSIO_CHIP_CODE(version, revision) (((version) << 4) | (revision)) +#define CHELSIO_CHIP_FPGA 0x100 +#define CHELSIO_CHIP_VERSION(code) (((code) >> 4) & 0xf) +#define CHELSIO_CHIP_RELEASE(code) ((code) & 0xf) + +#define CHELSIO_T4 0x4 +#define CHELSIO_T5 0x5 + +enum chip_type { + T4_A1 = CHELSIO_CHIP_CODE(CHELSIO_T4, 1), + T4_A2 = CHELSIO_CHIP_CODE(CHELSIO_T4, 2), + T4_FIRST_REV = T4_A1, + T4_LAST_REV = T4_A2, + + T5_A0 = CHELSIO_CHIP_CODE(CHELSIO_T5, 0), + T5_A1 = CHELSIO_CHIP_CODE(CHELSIO_T5, 1), + T5_FIRST_REV = T5_A0, + T5_LAST_REV = T5_A1, +}; + +struct adapter_params { + struct tp_params tp; + struct vpd_params vpd; + struct pci_params pci; + + unsigned int sf_size; /* serial flash size in bytes */ + unsigned int sf_nsec; /* # of flash sectors */ + unsigned int sf_fw_start; /* start of FW image in flash */ + + unsigned int fw_vers; + unsigned int tp_vers; + u8 api_vers[7]; + + unsigned short mtus[NMTUS]; + unsigned short a_wnd[NCCTRL_WIN]; + unsigned short b_wnd[NCCTRL_WIN]; + + unsigned char nports; /* # of ethernet ports */ + unsigned char portvec; + enum chip_type chip; /* chip code */ + unsigned char offload; + + unsigned char bypass; + + unsigned int ofldq_wr_cred; + bool ulptx_memwrite_dsgl; /* use of T5 DSGL allowed */ +}; + +#include "t4fw_api.h" + +#define FW_VERSION(chip) ( \ + FW_HDR_FW_VER_MAJOR_GET(chip##FW_VERSION_MAJOR) | \ + FW_HDR_FW_VER_MINOR_GET(chip##FW_VERSION_MINOR) | \ + FW_HDR_FW_VER_MICRO_GET(chip##FW_VERSION_MICRO) | \ + FW_HDR_FW_VER_BUILD_GET(chip##FW_VERSION_BUILD)) +#define FW_INTFVER(chip, intf) (FW_HDR_INTFVER_##intf) + +struct fw_info { + u8 chip; + char *fs_name; + char *fw_mod_name; + struct fw_hdr fw_hdr; +}; + + +struct trace_params { + u32 data[TRACE_LEN / 4]; + u32 mask[TRACE_LEN / 4]; + unsigned short snap_len; + unsigned short min_len; + unsigned char skip_ofst; + unsigned char skip_len; + unsigned char invert; + unsigned char port; +}; + +struct link_config { + unsigned short supported; /* link capabilities */ + unsigned short advertising; /* advertised capabilities */ + unsigned short requested_speed; /* speed user has requested */ + unsigned short speed; /* actual link speed */ + unsigned char requested_fc; /* flow control user has requested */ + unsigned char fc; /* actual link flow control */ + unsigned char autoneg; /* autonegotiating? */ + unsigned char link_ok; /* link up? */ +}; + +#define FW_LEN16(fw_struct) FW_CMD_LEN16(sizeof(fw_struct) / 16) + +enum { + MAX_ETH_QSETS = 32, /* # of Ethernet Tx/Rx queue sets */ + MAX_OFLD_QSETS = 16, /* # of offload Tx/Rx queue sets */ + MAX_CTRL_QUEUES = NCHAN, /* # of control Tx queues */ + MAX_RDMA_QUEUES = NCHAN, /* # of streaming RDMA Rx queues */ + MAX_RDMA_CIQS = NCHAN, /* # of RDMA concentrator IQs */ + MAX_ISCSI_QUEUES = NCHAN, /* # of streaming iSCSI Rx queues */ +}; + +enum { + INGQ_EXTRAS = 2, /* firmware event queue and */ + /* forwarded interrupts */ + MAX_EGRQ = MAX_ETH_QSETS*2 + MAX_OFLD_QSETS*2 + + MAX_CTRL_QUEUES + MAX_RDMA_QUEUES + MAX_ISCSI_QUEUES, + MAX_INGQ = MAX_ETH_QSETS + MAX_OFLD_QSETS + MAX_RDMA_QUEUES + + MAX_RDMA_CIQS + MAX_ISCSI_QUEUES + INGQ_EXTRAS, +}; + +struct adapter; +struct sge_rspq; + +struct port_info { + struct adapter *adapter; + u16 viid; + s16 xact_addr_filt; /* index of exact MAC address filter */ + u16 rss_size; /* size of VI's RSS table slice */ + s8 mdio_addr; + u8 port_type; + u8 mod_type; + u8 port_id; + u8 tx_chan; + u8 lport; /* associated offload logical port */ + u8 nqsets; /* # of qsets */ + u8 first_qset; /* index of first qset */ + u8 rss_mode; + struct link_config link_cfg; + u16 *rss; +}; + +struct dentry; +struct work_struct; + +enum { /* adapter flags */ + FULL_INIT_DONE = (1 << 0), + DEV_ENABLED = (1 << 1), + USING_MSI = (1 << 2), + USING_MSIX = (1 << 3), + FW_OK = (1 << 4), + RSS_TNLALLLOOKUP = (1 << 5), + USING_SOFT_PARAMS = (1 << 6), + MASTER_PF = (1 << 7), + FW_OFLD_CONN = (1 << 9), +}; + +struct rx_sw_desc; + +struct sge_fl { /* SGE free-buffer queue state */ + unsigned int avail; /* # of available Rx buffers */ + unsigned int pend_cred; /* new buffers since last FL DB ring */ + unsigned int cidx; /* consumer index */ + unsigned int pidx; /* producer index */ + unsigned long alloc_failed; /* # of times buffer allocation failed */ + unsigned long large_alloc_failed; + unsigned long starving; + /* RO fields */ + unsigned int cntxt_id; /* SGE context id for the free list */ + unsigned int size; /* capacity of free list */ + struct rx_sw_desc *sdesc; /* address of SW Rx descriptor ring */ + __be64 *desc; /* address of HW Rx descriptor ring */ + dma_addr_t addr; /* bus address of HW ring start */ +}; + +/* A packet gather list */ +struct pkt_gl { + struct page_frag frags[MAX_SKB_FRAGS]; + void *va; /* virtual address of first byte */ + unsigned int nfrags; /* # of fragments */ + unsigned int tot_len; /* total length of fragments */ +}; + +typedef int (*rspq_handler_t)(struct sge_rspq *q, const __be64 *rsp, + const struct pkt_gl *gl); + +struct sge_rspq { /* state for an SGE response queue */ + struct napi_struct napi; + const __be64 *cur_desc; /* current descriptor in queue */ + unsigned int cidx; /* consumer index */ + u8 gen; /* current generation bit */ + u8 intr_params; /* interrupt holdoff parameters */ + u8 next_intr_params; /* holdoff params for next interrupt */ + u8 pktcnt_idx; /* interrupt packet threshold */ + u8 uld; /* ULD handling this queue */ + u8 idx; /* queue index within its group */ + int offset; /* offset into current Rx buffer */ + u16 cntxt_id; /* SGE context id for the response q */ + u16 abs_id; /* absolute SGE id for the response q */ + __be64 *desc; /* address of HW response ring */ + dma_addr_t phys_addr; /* physical address of the ring */ + unsigned int iqe_len; /* entry size */ + unsigned int size; /* capacity of response queue */ + struct adapter *adap; + struct net_device *netdev; /* associated net device */ + rspq_handler_t handler; +}; + +struct sge_eth_stats { /* Ethernet queue statistics */ + unsigned long pkts; /* # of ethernet packets */ + unsigned long lro_pkts; /* # of LRO super packets */ + unsigned long lro_merged; /* # of wire packets merged by LRO */ + unsigned long rx_cso; /* # of Rx checksum offloads */ + unsigned long vlan_ex; /* # of Rx VLAN extractions */ + unsigned long rx_drops; /* # of packets dropped due to no mem */ +}; + +struct sge_eth_rxq { /* SW Ethernet Rx queue */ + struct sge_rspq rspq; + struct sge_fl fl; + struct sge_eth_stats stats; +} ____cacheline_aligned_in_smp; + +struct sge_ofld_stats { /* offload queue statistics */ + unsigned long pkts; /* # of packets */ + unsigned long imm; /* # of immediate-data packets */ + unsigned long an; /* # of asynchronous notifications */ + unsigned long nomem; /* # of responses deferred due to no mem */ +}; + +struct sge_ofld_rxq { /* SW offload Rx queue */ + struct sge_rspq rspq; + struct sge_fl fl; + struct sge_ofld_stats stats; +} ____cacheline_aligned_in_smp; + +struct tx_desc { + __be64 flit[8]; +}; + +struct tx_sw_desc; + +struct sge_txq { + unsigned int in_use; /* # of in-use Tx descriptors */ + unsigned int size; /* # of descriptors */ + unsigned int cidx; /* SW consumer index */ + unsigned int pidx; /* producer index */ + unsigned long stops; /* # of times q has been stopped */ + unsigned long restarts; /* # of queue restarts */ + unsigned int cntxt_id; /* SGE context id for the Tx q */ + struct tx_desc *desc; /* address of HW Tx descriptor ring */ + struct tx_sw_desc *sdesc; /* address of SW Tx descriptor ring */ + struct sge_qstat *stat; /* queue status entry */ + dma_addr_t phys_addr; /* physical address of the ring */ + spinlock_t db_lock; + int db_disabled; + unsigned short db_pidx; + unsigned short db_pidx_inc; + u64 udb; +}; + +struct sge_eth_txq { /* state for an SGE Ethernet Tx queue */ + struct sge_txq q; + struct netdev_queue *txq; /* associated netdev TX queue */ + unsigned long tso; /* # of TSO requests */ + unsigned long tx_cso; /* # of Tx checksum offloads */ + unsigned long vlan_ins; /* # of Tx VLAN insertions */ + unsigned long mapping_err; /* # of I/O MMU packet mapping errors */ +} ____cacheline_aligned_in_smp; + +struct sge_ofld_txq { /* state for an SGE offload Tx queue */ + struct sge_txq q; + struct adapter *adap; + struct sk_buff_head sendq; /* list of backpressured packets */ + struct tasklet_struct qresume_tsk; /* restarts the queue */ + u8 full; /* the Tx ring is full */ + unsigned long mapping_err; /* # of I/O MMU packet mapping errors */ +} ____cacheline_aligned_in_smp; + +struct sge_ctrl_txq { /* state for an SGE control Tx queue */ + struct sge_txq q; + struct adapter *adap; + struct sk_buff_head sendq; /* list of backpressured packets */ + struct tasklet_struct qresume_tsk; /* restarts the queue */ + u8 full; /* the Tx ring is full */ +} ____cacheline_aligned_in_smp; + +struct sge { + struct sge_eth_txq ethtxq[MAX_ETH_QSETS]; + struct sge_ofld_txq ofldtxq[MAX_OFLD_QSETS]; + struct sge_ctrl_txq ctrlq[MAX_CTRL_QUEUES]; + + struct sge_eth_rxq ethrxq[MAX_ETH_QSETS]; + struct sge_ofld_rxq ofldrxq[MAX_OFLD_QSETS]; + struct sge_ofld_rxq rdmarxq[MAX_RDMA_QUEUES]; + struct sge_ofld_rxq rdmaciq[MAX_RDMA_CIQS]; + struct sge_rspq fw_evtq ____cacheline_aligned_in_smp; + + struct sge_rspq intrq ____cacheline_aligned_in_smp; + spinlock_t intrq_lock; + + u16 max_ethqsets; /* # of available Ethernet queue sets */ + u16 ethqsets; /* # of active Ethernet queue sets */ + u16 ethtxq_rover; /* Tx queue to clean up next */ + u16 ofldqsets; /* # of active offload queue sets */ + u16 rdmaqs; /* # of available RDMA Rx queues */ + u16 rdmaciqs; /* # of available RDMA concentrator IQs */ + u16 ofld_rxq[MAX_OFLD_QSETS]; + u16 rdma_rxq[NCHAN]; + u16 rdma_ciq[NCHAN]; + u16 timer_val[SGE_NTIMERS]; + u8 counter_val[SGE_NCOUNTERS]; + u32 fl_pg_order; /* large page allocation size */ + u32 stat_len; /* length of status page at ring end */ + u32 pktshift; /* padding between CPL & packet data */ + u32 fl_align; /* response queue message alignment */ + u32 fl_starve_thres; /* Free List starvation threshold */ + + /* State variables for detecting an SGE Ingress DMA hang */ + unsigned int idma_1s_thresh;/* SGE same State Counter 1s threshold */ + unsigned int idma_stalled[2];/* SGE synthesized stalled timers in HZ */ + unsigned int idma_state[2]; /* SGE IDMA Hang detect state */ + unsigned int idma_qid[2]; /* SGE IDMA Hung Ingress Queue ID */ + + unsigned int egr_start; + unsigned int ingr_start; + void *egr_map[MAX_EGRQ]; /* qid->queue egress queue map */ + struct sge_rspq *ingr_map[MAX_INGQ]; /* qid->queue ingress queue map */ + DECLARE_BITMAP(starving_fl, MAX_EGRQ); + DECLARE_BITMAP(txq_maperr, MAX_EGRQ); + struct timer_list rx_timer; /* refills starving FLs */ + struct timer_list tx_timer; /* checks Tx queues */ +}; + +#define for_each_ethrxq(sge, i) for (i = 0; i < (sge)->ethqsets; i++) +#define for_each_ofldrxq(sge, i) for (i = 0; i < (sge)->ofldqsets; i++) +#define for_each_rdmarxq(sge, i) for (i = 0; i < (sge)->rdmaqs; i++) +#define for_each_rdmaciq(sge, i) for (i = 0; i < (sge)->rdmaciqs; i++) + +struct l2t_data; + +#ifdef CONFIG_PCI_IOV + +/* T4 supports SRIOV on PF0-3 and T5 on PF0-7. However, the Serial + * Configuration initialization for T5 only has SR-IOV functionality enabled + * on PF0-3 in order to simplify everything. + */ +#define NUM_OF_PF_WITH_SRIOV 4 + +#endif + +struct adapter { + void __iomem *regs; + void __iomem *bar2; + struct pci_dev *pdev; + struct device *pdev_dev; + unsigned int mbox; + unsigned int fn; + unsigned int flags; + enum chip_type chip; + + int msg_enable; + + struct adapter_params params; + struct cxgb4_virt_res vres; + unsigned int swintr; + + unsigned int wol; + + struct { + unsigned short vec; + char desc[IFNAMSIZ + 10]; + } msix_info[MAX_INGQ + 1]; + + struct sge sge; + + struct net_device *port[MAX_NPORTS]; + u8 chan_map[NCHAN]; /* channel -> port map */ + + u32 filter_mode; + unsigned int l2t_start; + unsigned int l2t_end; + struct l2t_data *l2t; + void *uld_handle[CXGB4_ULD_MAX]; + struct list_head list_node; + struct list_head rcu_node; + + struct tid_info tids; + void **tid_release_head; + spinlock_t tid_release_lock; + struct work_struct tid_release_task; + struct work_struct db_full_task; + struct work_struct db_drop_task; + bool tid_release_task_busy; + + struct dentry *debugfs_root; + + spinlock_t stats_lock; +}; + +/* Defined bit width of user definable filter tuples + */ +#define ETHTYPE_BITWIDTH 16 +#define FRAG_BITWIDTH 1 +#define MACIDX_BITWIDTH 9 +#define FCOE_BITWIDTH 1 +#define IPORT_BITWIDTH 3 +#define MATCHTYPE_BITWIDTH 3 +#define PROTO_BITWIDTH 8 +#define TOS_BITWIDTH 8 +#define PF_BITWIDTH 8 +#define VF_BITWIDTH 8 +#define IVLAN_BITWIDTH 16 +#define OVLAN_BITWIDTH 16 + +/* Filter matching rules. These consist of a set of ingress packet field + * (value, mask) tuples. The associated ingress packet field matches the + * tuple when ((field & mask) == value). (Thus a wildcard "don't care" field + * rule can be constructed by specifying a tuple of (0, 0).) A filter rule + * matches an ingress packet when all of the individual individual field + * matching rules are true. + * + * Partial field masks are always valid, however, while it may be easy to + * understand their meanings for some fields (e.g. IP address to match a + * subnet), for others making sensible partial masks is less intuitive (e.g. + * MPS match type) ... + * + * Most of the following data structures are modeled on T4 capabilities. + * Drivers for earlier chips use the subsets which make sense for those chips. + * We really need to come up with a hardware-independent mechanism to + * represent hardware filter capabilities ... + */ +struct ch_filter_tuple { + /* Compressed header matching field rules. The TP_VLAN_PRI_MAP + * register selects which of these fields will participate in the + * filter match rules -- up to a maximum of 36 bits. Because + * TP_VLAN_PRI_MAP is a global register, all filters must use the same + * set of fields. + */ + uint32_t ethtype:ETHTYPE_BITWIDTH; /* Ethernet type */ + uint32_t frag:FRAG_BITWIDTH; /* IP fragmentation header */ + uint32_t ivlan_vld:1; /* inner VLAN valid */ + uint32_t ovlan_vld:1; /* outer VLAN valid */ + uint32_t pfvf_vld:1; /* PF/VF valid */ + uint32_t macidx:MACIDX_BITWIDTH; /* exact match MAC index */ + uint32_t fcoe:FCOE_BITWIDTH; /* FCoE packet */ + uint32_t iport:IPORT_BITWIDTH; /* ingress port */ + uint32_t matchtype:MATCHTYPE_BITWIDTH; /* MPS match type */ + uint32_t proto:PROTO_BITWIDTH; /* protocol type */ + uint32_t tos:TOS_BITWIDTH; /* TOS/Traffic Type */ + uint32_t pf:PF_BITWIDTH; /* PCI-E PF ID */ + uint32_t vf:VF_BITWIDTH; /* PCI-E VF ID */ + uint32_t ivlan:IVLAN_BITWIDTH; /* inner VLAN */ + uint32_t ovlan:OVLAN_BITWIDTH; /* outer VLAN */ + + /* Uncompressed header matching field rules. These are always + * available for field rules. + */ + uint8_t lip[16]; /* local IP address (IPv4 in [3:0]) */ + uint8_t fip[16]; /* foreign IP address (IPv4 in [3:0]) */ + uint16_t lport; /* local port */ + uint16_t fport; /* foreign port */ +}; + +/* A filter ioctl command. + */ +struct ch_filter_specification { + /* Administrative fields for filter. + */ + uint32_t hitcnts:1; /* count filter hits in TCB */ + uint32_t prio:1; /* filter has priority over active/server */ + + /* Fundamental filter typing. This is the one element of filter + * matching that doesn't exist as a (value, mask) tuple. + */ + uint32_t type:1; /* 0 => IPv4, 1 => IPv6 */ + + /* Packet dispatch information. Ingress packets which match the + * filter rules will be dropped, passed to the host or switched back + * out as egress packets. + */ + uint32_t action:2; /* drop, pass, switch */ + + uint32_t rpttid:1; /* report TID in RSS hash field */ + + uint32_t dirsteer:1; /* 0 => RSS, 1 => steer to iq */ + uint32_t iq:10; /* ingress queue */ + + uint32_t maskhash:1; /* dirsteer=0: store RSS hash in TCB */ + uint32_t dirsteerhash:1;/* dirsteer=1: 0 => TCB contains RSS hash */ + /* 1 => TCB contains IQ ID */ + + /* Switch proxy/rewrite fields. An ingress packet which matches a + * filter with "switch" set will be looped back out as an egress + * packet -- potentially with some Ethernet header rewriting. + */ + uint32_t eport:2; /* egress port to switch packet out */ + uint32_t newdmac:1; /* rewrite destination MAC address */ + uint32_t newsmac:1; /* rewrite source MAC address */ + uint32_t newvlan:2; /* rewrite VLAN Tag */ + uint8_t dmac[ETH_ALEN]; /* new destination MAC address */ + uint8_t smac[ETH_ALEN]; /* new source MAC address */ + uint16_t vlan; /* VLAN Tag to insert */ + + /* Filter rule value/mask pairs. + */ + struct ch_filter_tuple val; + struct ch_filter_tuple mask; +}; + +enum { + FILTER_PASS = 0, /* default */ + FILTER_DROP, + FILTER_SWITCH +}; + +enum { + VLAN_NOCHANGE = 0, /* default */ + VLAN_REMOVE, + VLAN_INSERT, + VLAN_REWRITE +}; + +static inline int is_t5(enum chip_type chip) +{ + return CHELSIO_CHIP_VERSION(chip) == CHELSIO_T5; +} + +static inline int is_t4(enum chip_type chip) +{ + return CHELSIO_CHIP_VERSION(chip) == CHELSIO_T4; +} + +static inline u32 t4_read_reg(struct adapter *adap, u32 reg_addr) +{ + return readl(adap->regs + reg_addr); +} + +static inline void t4_write_reg(struct adapter *adap, u32 reg_addr, u32 val) +{ + writel(val, adap->regs + reg_addr); +} + +#ifndef readq +static inline u64 readq(const volatile void __iomem *addr) +{ + return readl(addr) + ((u64)readl(addr + 4) << 32); +} + +static inline void writeq(u64 val, volatile void __iomem *addr) +{ + writel(val, addr); + writel(val >> 32, addr + 4); +} +#endif + +static inline u64 t4_read_reg64(struct adapter *adap, u32 reg_addr) +{ + return readq(adap->regs + reg_addr); +} + +static inline void t4_write_reg64(struct adapter *adap, u32 reg_addr, u64 val) +{ + writeq(val, adap->regs + reg_addr); +} + +/** + * netdev2pinfo - return the port_info structure associated with a net_device + * @dev: the netdev + * + * Return the struct port_info associated with a net_device + */ +static inline struct port_info *netdev2pinfo(const struct net_device *dev) +{ + return netdev_priv(dev); +} + +/** + * adap2pinfo - return the port_info of a port + * @adap: the adapter + * @idx: the port index + * + * Return the port_info structure for the port of the given index. + */ +static inline struct port_info *adap2pinfo(struct adapter *adap, int idx) +{ + return netdev_priv(adap->port[idx]); +} + +/** + * netdev2adap - return the adapter structure associated with a net_device + * @dev: the netdev + * + * Return the struct adapter associated with a net_device + */ +static inline struct adapter *netdev2adap(const struct net_device *dev) +{ + return netdev2pinfo(dev)->adapter; +} + +void t4_os_portmod_changed(const struct adapter *adap, int port_id); +void t4_os_link_changed(struct adapter *adap, int port_id, int link_stat); + +void *t4_alloc_mem(size_t size); + +void t4_free_sge_resources(struct adapter *adap); +irq_handler_t t4_intr_handler(struct adapter *adap); +netdev_tx_t t4_eth_xmit(struct sk_buff *skb, struct net_device *dev); +int t4_ethrx_handler(struct sge_rspq *q, const __be64 *rsp, + const struct pkt_gl *gl); +int t4_mgmt_tx(struct adapter *adap, struct sk_buff *skb); +int t4_ofld_send(struct adapter *adap, struct sk_buff *skb); +int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq, + struct net_device *dev, int intr_idx, + struct sge_fl *fl, rspq_handler_t hnd); +int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq, + struct net_device *dev, struct netdev_queue *netdevq, + unsigned int iqid); +int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq, + struct net_device *dev, unsigned int iqid, + unsigned int cmplqid); +int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq, + struct net_device *dev, unsigned int iqid); +irqreturn_t t4_sge_intr_msix(int irq, void *cookie); +int t4_sge_init(struct adapter *adap); +void t4_sge_start(struct adapter *adap); +void t4_sge_stop(struct adapter *adap); +extern int dbfifo_int_thresh; + +#define for_each_port(adapter, iter) \ + for (iter = 0; iter < (adapter)->params.nports; ++iter) + +static inline int is_bypass(struct adapter *adap) +{ + return adap->params.bypass; +} + +static inline int is_bypass_device(int device) +{ + /* this should be set based upon device capabilities */ + switch (device) { + case 0x440b: + case 0x440c: + return 1; + default: + return 0; + } +} + +static inline unsigned int core_ticks_per_usec(const struct adapter *adap) +{ + return adap->params.vpd.cclk / 1000; +} + +static inline unsigned int us_to_core_ticks(const struct adapter *adap, + unsigned int us) +{ + return (us * adap->params.vpd.cclk) / 1000; +} + +static inline unsigned int core_ticks_to_us(const struct adapter *adapter, + unsigned int ticks) +{ + /* add Core Clock / 2 to round ticks to nearest uS */ + return ((ticks * 1000 + adapter->params.vpd.cclk/2) / + adapter->params.vpd.cclk); +} + +void t4_set_reg_field(struct adapter *adap, unsigned int addr, u32 mask, + u32 val); + +int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size, + void *rpl, bool sleep_ok); + +static inline int t4_wr_mbox(struct adapter *adap, int mbox, const void *cmd, + int size, void *rpl) +{ + return t4_wr_mbox_meat(adap, mbox, cmd, size, rpl, true); +} + +static inline int t4_wr_mbox_ns(struct adapter *adap, int mbox, const void *cmd, + int size, void *rpl) +{ + return t4_wr_mbox_meat(adap, mbox, cmd, size, rpl, false); +} + +void t4_write_indirect(struct adapter *adap, unsigned int addr_reg, + unsigned int data_reg, const u32 *vals, + unsigned int nregs, unsigned int start_idx); +void t4_read_indirect(struct adapter *adap, unsigned int addr_reg, + unsigned int data_reg, u32 *vals, unsigned int nregs, + unsigned int start_idx); + +struct fw_filter_wr; + +void t4_intr_enable(struct adapter *adapter); +void t4_intr_disable(struct adapter *adapter); +int t4_slow_intr_handler(struct adapter *adapter); + +int t4_wait_dev_ready(struct adapter *adap); +int t4_link_start(struct adapter *adap, unsigned int mbox, unsigned int port, + struct link_config *lc); +int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port); +int t4_memory_write(struct adapter *adap, int mtype, u32 addr, u32 len, + __be32 *buf); +int t4_seeprom_wp(struct adapter *adapter, bool enable); +int get_vpd_params(struct adapter *adapter, struct vpd_params *p); +int t4_load_fw(struct adapter *adapter, const u8 *fw_data, unsigned int size); +unsigned int t4_flash_cfg_addr(struct adapter *adapter); +int t4_get_fw_version(struct adapter *adapter, u32 *vers); +int t4_get_tp_version(struct adapter *adapter, u32 *vers); +int t4_prep_fw(struct adapter *adap, struct fw_info *fw_info, + const u8 *fw_data, unsigned int fw_size, + struct fw_hdr *card_fw, enum dev_state state, int *reset); +int t4_prep_adapter(struct adapter *adapter); +int t4_init_tp_params(struct adapter *adap); +int t4_filter_field_shift(const struct adapter *adap, int filter_sel); +int t4_port_init(struct adapter *adap, int mbox, int pf, int vf); +void t4_fatal_err(struct adapter *adapter); +int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid, + int start, int n, const u16 *rspq, unsigned int nrspq); +int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode, + unsigned int flags); +int t4_mc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, + u64 *parity); +int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, + u64 *parity); +const char *t4_get_port_type_description(enum fw_port_type port_type); +void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p); +void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log); +void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr, + unsigned int mask, unsigned int val); +void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4, + struct tp_tcp_stats *v6); +void t4_load_mtus(struct adapter *adap, const unsigned short *mtus, + const unsigned short *alpha, const unsigned short *beta); + +void t4_mk_filtdelwr(unsigned int ftid, struct fw_filter_wr *wr, int qid); + +void t4_wol_magic_enable(struct adapter *adap, unsigned int port, + const u8 *addr); +int t4_wol_pat_enable(struct adapter *adap, unsigned int port, unsigned int map, + u64 mask0, u64 mask1, unsigned int crc, bool enable); + +int t4_fw_hello(struct adapter *adap, unsigned int mbox, unsigned int evt_mbox, + enum dev_master master, enum dev_state *state); +int t4_fw_bye(struct adapter *adap, unsigned int mbox); +int t4_early_init(struct adapter *adap, unsigned int mbox); +int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset); +int t4_fixup_host_params(struct adapter *adap, unsigned int page_size, + unsigned int cache_line_size); +int t4_fw_initialize(struct adapter *adap, unsigned int mbox); +int t4_query_params(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int nparams, const u32 *params, + u32 *val); +int t4_set_params(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int nparams, const u32 *params, + const u32 *val); +int t4_cfg_pfvf(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int txq, unsigned int txq_eth_ctrl, + unsigned int rxqi, unsigned int rxq, unsigned int tc, + unsigned int vi, unsigned int cmask, unsigned int pmask, + unsigned int nexact, unsigned int rcaps, unsigned int wxcaps); +int t4_alloc_vi(struct adapter *adap, unsigned int mbox, unsigned int port, + unsigned int pf, unsigned int vf, unsigned int nmac, u8 *mac, + unsigned int *rss_size); +int t4_set_rxmode(struct adapter *adap, unsigned int mbox, unsigned int viid, + int mtu, int promisc, int all_multi, int bcast, int vlanex, + bool sleep_ok); +int t4_alloc_mac_filt(struct adapter *adap, unsigned int mbox, + unsigned int viid, bool free, unsigned int naddr, + const u8 **addr, u16 *idx, u64 *hash, bool sleep_ok); +int t4_change_mac(struct adapter *adap, unsigned int mbox, unsigned int viid, + int idx, const u8 *addr, bool persist, bool add_smt); +int t4_set_addr_hash(struct adapter *adap, unsigned int mbox, unsigned int viid, + bool ucast, u64 vec, bool sleep_ok); +int t4_enable_vi(struct adapter *adap, unsigned int mbox, unsigned int viid, + bool rx_en, bool tx_en); +int t4_identify_port(struct adapter *adap, unsigned int mbox, unsigned int viid, + unsigned int nblinks); +int t4_mdio_rd(struct adapter *adap, unsigned int mbox, unsigned int phy_addr, + unsigned int mmd, unsigned int reg, u16 *valp); +int t4_mdio_wr(struct adapter *adap, unsigned int mbox, unsigned int phy_addr, + unsigned int mmd, unsigned int reg, u16 val); +int t4_iq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int iqtype, unsigned int iqid, + unsigned int fl0id, unsigned int fl1id); +int t4_eth_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int eqid); +int t4_ctrl_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int eqid); +int t4_ofld_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int eqid); +int t4_handle_fw_rpl(struct adapter *adap, const __be64 *rpl); +void t4_db_full(struct adapter *adapter); +void t4_db_dropped(struct adapter *adapter); +int t4_mem_win_read_len(struct adapter *adap, u32 addr, __be32 *data, int len); +int t4_fwaddrspace_write(struct adapter *adap, unsigned int mbox, + u32 addr, u32 val); +void t4_sge_decode_idma_state(struct adapter *adapter, int state); +#endif /* __CXGB4_H__ */ diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c new file mode 100644 index 00000000000..a83271cf17c --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -0,0 +1,6445 @@ +/* + * This file is part of the Chelsio T4 Ethernet driver for Linux. + * + * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/bitmap.h> +#include <linux/crc32.h> +#include <linux/ctype.h> +#include <linux/debugfs.h> +#include <linux/err.h> +#include <linux/etherdevice.h> +#include <linux/firmware.h> +#include <linux/if.h> +#include <linux/if_vlan.h> +#include <linux/init.h> +#include <linux/log2.h> +#include <linux/mdio.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/mutex.h> +#include <linux/netdevice.h> +#include <linux/pci.h> +#include <linux/aer.h> +#include <linux/rtnetlink.h> +#include <linux/sched.h> +#include <linux/seq_file.h> +#include <linux/sockios.h> +#include <linux/vmalloc.h> +#include <linux/workqueue.h> +#include <net/neighbour.h> +#include <net/netevent.h> +#include <net/addrconf.h> +#include <asm/uaccess.h> + +#include "cxgb4.h" +#include "t4_regs.h" +#include "t4_msg.h" +#include "t4fw_api.h" +#include "l2t.h" + +#include <../drivers/net/bonding/bonding.h> + +#ifdef DRV_VERSION +#undef DRV_VERSION +#endif +#define DRV_VERSION "2.0.0-ko" +#define DRV_DESC "Chelsio T4/T5 Network Driver" + +/* + * Max interrupt hold-off timer value in us. Queues fall back to this value + * under extreme memory pressure so it's largish to give the system time to + * recover. + */ +#define MAX_SGE_TIMERVAL 200U + +enum { + /* + * Physical Function provisioning constants. + */ + PFRES_NVI = 4, /* # of Virtual Interfaces */ + PFRES_NETHCTRL = 128, /* # of EQs used for ETH or CTRL Qs */ + PFRES_NIQFLINT = 128, /* # of ingress Qs/w Free List(s)/intr + */ + PFRES_NEQ = 256, /* # of egress queues */ + PFRES_NIQ = 0, /* # of ingress queues */ + PFRES_TC = 0, /* PCI-E traffic class */ + PFRES_NEXACTF = 128, /* # of exact MPS filters */ + + PFRES_R_CAPS = FW_CMD_CAP_PF, + PFRES_WX_CAPS = FW_CMD_CAP_PF, + +#ifdef CONFIG_PCI_IOV + /* + * Virtual Function provisioning constants. We need two extra Ingress + * Queues with Interrupt capability to serve as the VF's Firmware + * Event Queue and Forwarded Interrupt Queue (when using MSI mode) -- + * neither will have Free Lists associated with them). For each + * Ethernet/Control Egress Queue and for each Free List, we need an + * Egress Context. + */ + VFRES_NPORTS = 1, /* # of "ports" per VF */ + VFRES_NQSETS = 2, /* # of "Queue Sets" per VF */ + + VFRES_NVI = VFRES_NPORTS, /* # of Virtual Interfaces */ + VFRES_NETHCTRL = VFRES_NQSETS, /* # of EQs used for ETH or CTRL Qs */ + VFRES_NIQFLINT = VFRES_NQSETS+2,/* # of ingress Qs/w Free List(s)/intr */ + VFRES_NEQ = VFRES_NQSETS*2, /* # of egress queues */ + VFRES_NIQ = 0, /* # of non-fl/int ingress queues */ + VFRES_TC = 0, /* PCI-E traffic class */ + VFRES_NEXACTF = 16, /* # of exact MPS filters */ + + VFRES_R_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF|FW_CMD_CAP_PORT, + VFRES_WX_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF, +#endif +}; + +/* + * Provide a Port Access Rights Mask for the specified PF/VF. This is very + * static and likely not to be useful in the long run. We really need to + * implement some form of persistent configuration which the firmware + * controls. + */ +static unsigned int pfvfres_pmask(struct adapter *adapter, + unsigned int pf, unsigned int vf) +{ + unsigned int portn, portvec; + + /* + * Give PF's access to all of the ports. + */ + if (vf == 0) + return FW_PFVF_CMD_PMASK_MASK; + + /* + * For VFs, we'll assign them access to the ports based purely on the + * PF. We assign active ports in order, wrapping around if there are + * fewer active ports than PFs: e.g. active port[pf % nports]. + * Unfortunately the adapter's port_info structs haven't been + * initialized yet so we have to compute this. + */ + if (adapter->params.nports == 0) + return 0; + + portn = pf % adapter->params.nports; + portvec = adapter->params.portvec; + for (;;) { + /* + * Isolate the lowest set bit in the port vector. If we're at + * the port number that we want, return that as the pmask. + * otherwise mask that bit out of the port vector and + * decrement our port number ... + */ + unsigned int pmask = portvec ^ (portvec & (portvec-1)); + if (portn == 0) + return pmask; + portn--; + portvec &= ~pmask; + } + /*NOTREACHED*/ +} + +enum { + MAX_TXQ_ENTRIES = 16384, + MAX_CTRL_TXQ_ENTRIES = 1024, + MAX_RSPQ_ENTRIES = 16384, + MAX_RX_BUFFERS = 16384, + MIN_TXQ_ENTRIES = 32, + MIN_CTRL_TXQ_ENTRIES = 32, + MIN_RSPQ_ENTRIES = 128, + MIN_FL_ENTRIES = 16 +}; + +/* Host shadow copy of ingress filter entry. This is in host native format + * and doesn't match the ordering or bit order, etc. of the hardware of the + * firmware command. The use of bit-field structure elements is purely to + * remind ourselves of the field size limitations and save memory in the case + * where the filter table is large. + */ +struct filter_entry { + /* Administrative fields for filter. + */ + u32 valid:1; /* filter allocated and valid */ + u32 locked:1; /* filter is administratively locked */ + + u32 pending:1; /* filter action is pending firmware reply */ + u32 smtidx:8; /* Source MAC Table index for smac */ + struct l2t_entry *l2t; /* Layer Two Table entry for dmac */ + + /* The filter itself. Most of this is a straight copy of information + * provided by the extended ioctl(). Some fields are translated to + * internal forms -- for instance the Ingress Queue ID passed in from + * the ioctl() is translated into the Absolute Ingress Queue ID. + */ + struct ch_filter_specification fs; +}; + +#define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \ + NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\ + NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) + +#define CH_DEVICE(devid, data) { PCI_VDEVICE(CHELSIO, devid), (data) } + +static DEFINE_PCI_DEVICE_TABLE(cxgb4_pci_tbl) = { + CH_DEVICE(0xa000, 0), /* PE10K */ + CH_DEVICE(0x4001, -1), + CH_DEVICE(0x4002, -1), + CH_DEVICE(0x4003, -1), + CH_DEVICE(0x4004, -1), + CH_DEVICE(0x4005, -1), + CH_DEVICE(0x4006, -1), + CH_DEVICE(0x4007, -1), + CH_DEVICE(0x4008, -1), + CH_DEVICE(0x4009, -1), + CH_DEVICE(0x400a, -1), + CH_DEVICE(0x4401, 4), + CH_DEVICE(0x4402, 4), + CH_DEVICE(0x4403, 4), + CH_DEVICE(0x4404, 4), + CH_DEVICE(0x4405, 4), + CH_DEVICE(0x4406, 4), + CH_DEVICE(0x4407, 4), + CH_DEVICE(0x4408, 4), + CH_DEVICE(0x4409, 4), + CH_DEVICE(0x440a, 4), + CH_DEVICE(0x440d, 4), + CH_DEVICE(0x440e, 4), + CH_DEVICE(0x5001, 4), + CH_DEVICE(0x5002, 4), + CH_DEVICE(0x5003, 4), + CH_DEVICE(0x5004, 4), + CH_DEVICE(0x5005, 4), + CH_DEVICE(0x5006, 4), + CH_DEVICE(0x5007, 4), + CH_DEVICE(0x5008, 4), + CH_DEVICE(0x5009, 4), + CH_DEVICE(0x500A, 4), + CH_DEVICE(0x500B, 4), + CH_DEVICE(0x500C, 4), + CH_DEVICE(0x500D, 4), + CH_DEVICE(0x500E, 4), + CH_DEVICE(0x500F, 4), + CH_DEVICE(0x5010, 4), + CH_DEVICE(0x5011, 4), + CH_DEVICE(0x5012, 4), + CH_DEVICE(0x5013, 4), + CH_DEVICE(0x5014, 4), + CH_DEVICE(0x5015, 4), + CH_DEVICE(0x5080, 4), + CH_DEVICE(0x5081, 4), + CH_DEVICE(0x5082, 4), + CH_DEVICE(0x5083, 4), + CH_DEVICE(0x5084, 4), + CH_DEVICE(0x5085, 4), + CH_DEVICE(0x5401, 4), + CH_DEVICE(0x5402, 4), + CH_DEVICE(0x5403, 4), + CH_DEVICE(0x5404, 4), + CH_DEVICE(0x5405, 4), + CH_DEVICE(0x5406, 4), + CH_DEVICE(0x5407, 4), + CH_DEVICE(0x5408, 4), + CH_DEVICE(0x5409, 4), + CH_DEVICE(0x540A, 4), + CH_DEVICE(0x540B, 4), + CH_DEVICE(0x540C, 4), + CH_DEVICE(0x540D, 4), + CH_DEVICE(0x540E, 4), + CH_DEVICE(0x540F, 4), + CH_DEVICE(0x5410, 4), + CH_DEVICE(0x5411, 4), + CH_DEVICE(0x5412, 4), + CH_DEVICE(0x5413, 4), + CH_DEVICE(0x5414, 4), + CH_DEVICE(0x5415, 4), + CH_DEVICE(0x5480, 4), + CH_DEVICE(0x5481, 4), + CH_DEVICE(0x5482, 4), + CH_DEVICE(0x5483, 4), + CH_DEVICE(0x5484, 4), + CH_DEVICE(0x5485, 4), + { 0, } +}; + +#define FW4_FNAME "cxgb4/t4fw.bin" +#define FW5_FNAME "cxgb4/t5fw.bin" +#define FW4_CFNAME "cxgb4/t4-config.txt" +#define FW5_CFNAME "cxgb4/t5-config.txt" + +MODULE_DESCRIPTION(DRV_DESC); +MODULE_AUTHOR("Chelsio Communications"); +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_VERSION(DRV_VERSION); +MODULE_DEVICE_TABLE(pci, cxgb4_pci_tbl); +MODULE_FIRMWARE(FW4_FNAME); +MODULE_FIRMWARE(FW5_FNAME); + +/* + * Normally we're willing to become the firmware's Master PF but will be happy + * if another PF has already become the Master and initialized the adapter. + * Setting "force_init" will cause this driver to forcibly establish itself as + * the Master PF and initialize the adapter. + */ +static uint force_init; + +module_param(force_init, uint, 0644); +MODULE_PARM_DESC(force_init, "Forcibly become Master PF and initialize adapter"); + +/* + * Normally if the firmware we connect to has Configuration File support, we + * use that and only fall back to the old Driver-based initialization if the + * Configuration File fails for some reason. If force_old_init is set, then + * we'll always use the old Driver-based initialization sequence. + */ +static uint force_old_init; + +module_param(force_old_init, uint, 0644); +MODULE_PARM_DESC(force_old_init, "Force old initialization sequence"); + +static int dflt_msg_enable = DFLT_MSG_ENABLE; + +module_param(dflt_msg_enable, int, 0644); +MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T4 default message enable bitmap"); + +/* + * The driver uses the best interrupt scheme available on a platform in the + * order MSI-X, MSI, legacy INTx interrupts. This parameter determines which + * of these schemes the driver may consider as follows: + * + * msi = 2: choose from among all three options + * msi = 1: only consider MSI and INTx interrupts + * msi = 0: force INTx interrupts + */ +static int msi = 2; + +module_param(msi, int, 0644); +MODULE_PARM_DESC(msi, "whether to use INTx (0), MSI (1) or MSI-X (2)"); + +/* + * Queue interrupt hold-off timer values. Queues default to the first of these + * upon creation. + */ +static unsigned int intr_holdoff[SGE_NTIMERS - 1] = { 5, 10, 20, 50, 100 }; + +module_param_array(intr_holdoff, uint, NULL, 0644); +MODULE_PARM_DESC(intr_holdoff, "values for queue interrupt hold-off timers " + "0..4 in microseconds"); + +static unsigned int intr_cnt[SGE_NCOUNTERS - 1] = { 4, 8, 16 }; + +module_param_array(intr_cnt, uint, NULL, 0644); +MODULE_PARM_DESC(intr_cnt, + "thresholds 1..3 for queue interrupt packet counters"); + +/* + * Normally we tell the chip to deliver Ingress Packets into our DMA buffers + * offset by 2 bytes in order to have the IP headers line up on 4-byte + * boundaries. This is a requirement for many architectures which will throw + * a machine check fault if an attempt is made to access one of the 4-byte IP + * header fields on a non-4-byte boundary. And it's a major performance issue + * even on some architectures which allow it like some implementations of the + * x86 ISA. However, some architectures don't mind this and for some very + * edge-case performance sensitive applications (like forwarding large volumes + * of small packets), setting this DMA offset to 0 will decrease the number of + * PCI-E Bus transfers enough to measurably affect performance. + */ +static int rx_dma_offset = 2; + +static bool vf_acls; + +#ifdef CONFIG_PCI_IOV +module_param(vf_acls, bool, 0644); +MODULE_PARM_DESC(vf_acls, "if set enable virtualization L2 ACL enforcement"); + +/* Configure the number of PCI-E Virtual Function which are to be instantiated + * on SR-IOV Capable Physical Functions. + */ +static unsigned int num_vf[NUM_OF_PF_WITH_SRIOV]; + +module_param_array(num_vf, uint, NULL, 0644); +MODULE_PARM_DESC(num_vf, "number of VFs for each of PFs 0-3"); +#endif + +/* + * The filter TCAM has a fixed portion and a variable portion. The fixed + * portion can match on source/destination IP IPv4/IPv6 addresses and TCP/UDP + * ports. The variable portion is 36 bits which can include things like Exact + * Match MAC Index (9 bits), Ether Type (16 bits), IP Protocol (8 bits), + * [Inner] VLAN Tag (17 bits), etc. which, if all were somehow selected, would + * far exceed the 36-bit budget for this "compressed" header portion of the + * filter. Thus, we have a scarce resource which must be carefully managed. + * + * By default we set this up to mostly match the set of filter matching + * capabilities of T3 but with accommodations for some of T4's more + * interesting features: + * + * { IP Fragment (1), MPS Match Type (3), IP Protocol (8), + * [Inner] VLAN (17), Port (3), FCoE (1) } + */ +enum { + TP_VLAN_PRI_MAP_DEFAULT = HW_TPL_FR_MT_PR_IV_P_FC, + TP_VLAN_PRI_MAP_FIRST = FCOE_SHIFT, + TP_VLAN_PRI_MAP_LAST = FRAGMENTATION_SHIFT, +}; + +static unsigned int tp_vlan_pri_map = TP_VLAN_PRI_MAP_DEFAULT; + +module_param(tp_vlan_pri_map, uint, 0644); +MODULE_PARM_DESC(tp_vlan_pri_map, "global compressed filter configuration"); + +static struct dentry *cxgb4_debugfs_root; + +static LIST_HEAD(adapter_list); +static DEFINE_MUTEX(uld_mutex); +/* Adapter list to be accessed from atomic context */ +static LIST_HEAD(adap_rcu_list); +static DEFINE_SPINLOCK(adap_rcu_lock); +static struct cxgb4_uld_info ulds[CXGB4_ULD_MAX]; +static const char *uld_str[] = { "RDMA", "iSCSI" }; + +static void link_report(struct net_device *dev) +{ + if (!netif_carrier_ok(dev)) + netdev_info(dev, "link down\n"); + else { + static const char *fc[] = { "no", "Rx", "Tx", "Tx/Rx" }; + + const char *s = "10Mbps"; + const struct port_info *p = netdev_priv(dev); + + switch (p->link_cfg.speed) { + case 10000: + s = "10Gbps"; + break; + case 1000: + s = "1000Mbps"; + break; + case 100: + s = "100Mbps"; + break; + case 40000: + s = "40Gbps"; + break; + } + + netdev_info(dev, "link up, %s, full-duplex, %s PAUSE\n", s, + fc[p->link_cfg.fc]); + } +} + +void t4_os_link_changed(struct adapter *adapter, int port_id, int link_stat) +{ + struct net_device *dev = adapter->port[port_id]; + + /* Skip changes from disabled ports. */ + if (netif_running(dev) && link_stat != netif_carrier_ok(dev)) { + if (link_stat) + netif_carrier_on(dev); + else + netif_carrier_off(dev); + + link_report(dev); + } +} + +void t4_os_portmod_changed(const struct adapter *adap, int port_id) +{ + static const char *mod_str[] = { + NULL, "LR", "SR", "ER", "passive DA", "active DA", "LRM" + }; + + const struct net_device *dev = adap->port[port_id]; + const struct port_info *pi = netdev_priv(dev); + + if (pi->mod_type == FW_PORT_MOD_TYPE_NONE) + netdev_info(dev, "port module unplugged\n"); + else if (pi->mod_type < ARRAY_SIZE(mod_str)) + netdev_info(dev, "%s module inserted\n", mod_str[pi->mod_type]); +} + +/* + * Configure the exact and hash address filters to handle a port's multicast + * and secondary unicast MAC addresses. + */ +static int set_addr_filters(const struct net_device *dev, bool sleep) +{ + u64 mhash = 0; + u64 uhash = 0; + bool free = true; + u16 filt_idx[7]; + const u8 *addr[7]; + int ret, naddr = 0; + const struct netdev_hw_addr *ha; + int uc_cnt = netdev_uc_count(dev); + int mc_cnt = netdev_mc_count(dev); + const struct port_info *pi = netdev_priv(dev); + unsigned int mb = pi->adapter->fn; + + /* first do the secondary unicast addresses */ + netdev_for_each_uc_addr(ha, dev) { + addr[naddr++] = ha->addr; + if (--uc_cnt == 0 || naddr >= ARRAY_SIZE(addr)) { + ret = t4_alloc_mac_filt(pi->adapter, mb, pi->viid, free, + naddr, addr, filt_idx, &uhash, sleep); + if (ret < 0) + return ret; + + free = false; + naddr = 0; + } + } + + /* next set up the multicast addresses */ + netdev_for_each_mc_addr(ha, dev) { + addr[naddr++] = ha->addr; + if (--mc_cnt == 0 || naddr >= ARRAY_SIZE(addr)) { + ret = t4_alloc_mac_filt(pi->adapter, mb, pi->viid, free, + naddr, addr, filt_idx, &mhash, sleep); + if (ret < 0) + return ret; + + free = false; + naddr = 0; + } + } + + return t4_set_addr_hash(pi->adapter, mb, pi->viid, uhash != 0, + uhash | mhash, sleep); +} + +int dbfifo_int_thresh = 10; /* 10 == 640 entry threshold */ +module_param(dbfifo_int_thresh, int, 0644); +MODULE_PARM_DESC(dbfifo_int_thresh, "doorbell fifo interrupt threshold"); + +/* + * usecs to sleep while draining the dbfifo + */ +static int dbfifo_drain_delay = 1000; +module_param(dbfifo_drain_delay, int, 0644); +MODULE_PARM_DESC(dbfifo_drain_delay, + "usecs to sleep while draining the dbfifo"); + +/* + * Set Rx properties of a port, such as promiscruity, address filters, and MTU. + * If @mtu is -1 it is left unchanged. + */ +static int set_rxmode(struct net_device *dev, int mtu, bool sleep_ok) +{ + int ret; + struct port_info *pi = netdev_priv(dev); + + ret = set_addr_filters(dev, sleep_ok); + if (ret == 0) + ret = t4_set_rxmode(pi->adapter, pi->adapter->fn, pi->viid, mtu, + (dev->flags & IFF_PROMISC) ? 1 : 0, + (dev->flags & IFF_ALLMULTI) ? 1 : 0, 1, -1, + sleep_ok); + return ret; +} + +static struct workqueue_struct *workq; + +/** + * link_start - enable a port + * @dev: the port to enable + * + * Performs the MAC and PHY actions needed to enable a port. + */ +static int link_start(struct net_device *dev) +{ + int ret; + struct port_info *pi = netdev_priv(dev); + unsigned int mb = pi->adapter->fn; + + /* + * We do not set address filters and promiscuity here, the stack does + * that step explicitly. + */ + ret = t4_set_rxmode(pi->adapter, mb, pi->viid, dev->mtu, -1, -1, -1, + !!(dev->features & NETIF_F_HW_VLAN_CTAG_RX), true); + if (ret == 0) { + ret = t4_change_mac(pi->adapter, mb, pi->viid, + pi->xact_addr_filt, dev->dev_addr, true, + true); + if (ret >= 0) { + pi->xact_addr_filt = ret; + ret = 0; + } + } + if (ret == 0) + ret = t4_link_start(pi->adapter, mb, pi->tx_chan, + &pi->link_cfg); + if (ret == 0) + ret = t4_enable_vi(pi->adapter, mb, pi->viid, true, true); + return ret; +} + +/* Clear a filter and release any of its resources that we own. This also + * clears the filter's "pending" status. + */ +static void clear_filter(struct adapter *adap, struct filter_entry *f) +{ + /* If the new or old filter have loopback rewriteing rules then we'll + * need to free any existing Layer Two Table (L2T) entries of the old + * filter rule. The firmware will handle freeing up any Source MAC + * Table (SMT) entries used for rewriting Source MAC Addresses in + * loopback rules. + */ + if (f->l2t) + cxgb4_l2t_release(f->l2t); + + /* The zeroing of the filter rule below clears the filter valid, + * pending, locked flags, l2t pointer, etc. so it's all we need for + * this operation. + */ + memset(f, 0, sizeof(*f)); +} + +/* Handle a filter write/deletion reply. + */ +static void filter_rpl(struct adapter *adap, const struct cpl_set_tcb_rpl *rpl) +{ + unsigned int idx = GET_TID(rpl); + unsigned int nidx = idx - adap->tids.ftid_base; + unsigned int ret; + struct filter_entry *f; + + if (idx >= adap->tids.ftid_base && nidx < + (adap->tids.nftids + adap->tids.nsftids)) { + idx = nidx; + ret = GET_TCB_COOKIE(rpl->cookie); + f = &adap->tids.ftid_tab[idx]; + + if (ret == FW_FILTER_WR_FLT_DELETED) { + /* Clear the filter when we get confirmation from the + * hardware that the filter has been deleted. + */ + clear_filter(adap, f); + } else if (ret == FW_FILTER_WR_SMT_TBL_FULL) { + dev_err(adap->pdev_dev, "filter %u setup failed due to full SMT\n", + idx); + clear_filter(adap, f); + } else if (ret == FW_FILTER_WR_FLT_ADDED) { + f->smtidx = (be64_to_cpu(rpl->oldval) >> 24) & 0xff; + f->pending = 0; /* asynchronous setup completed */ + f->valid = 1; + } else { + /* Something went wrong. Issue a warning about the + * problem and clear everything out. + */ + dev_err(adap->pdev_dev, "filter %u setup failed with error %u\n", + idx, ret); + clear_filter(adap, f); + } + } +} + +/* Response queue handler for the FW event queue. + */ +static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp, + const struct pkt_gl *gl) +{ + u8 opcode = ((const struct rss_header *)rsp)->opcode; + + rsp++; /* skip RSS header */ + + /* FW can send EGR_UPDATEs encapsulated in a CPL_FW4_MSG. + */ + if (unlikely(opcode == CPL_FW4_MSG && + ((const struct cpl_fw4_msg *)rsp)->type == FW_TYPE_RSSCPL)) { + rsp++; + opcode = ((const struct rss_header *)rsp)->opcode; + rsp++; + if (opcode != CPL_SGE_EGR_UPDATE) { + dev_err(q->adap->pdev_dev, "unexpected FW4/CPL %#x on FW event queue\n" + , opcode); + goto out; + } + } + + if (likely(opcode == CPL_SGE_EGR_UPDATE)) { + const struct cpl_sge_egr_update *p = (void *)rsp; + unsigned int qid = EGR_QID(ntohl(p->opcode_qid)); + struct sge_txq *txq; + + txq = q->adap->sge.egr_map[qid - q->adap->sge.egr_start]; + txq->restarts++; + if ((u8 *)txq < (u8 *)q->adap->sge.ofldtxq) { + struct sge_eth_txq *eq; + + eq = container_of(txq, struct sge_eth_txq, q); + netif_tx_wake_queue(eq->txq); + } else { + struct sge_ofld_txq *oq; + + oq = container_of(txq, struct sge_ofld_txq, q); + tasklet_schedule(&oq->qresume_tsk); + } + } else if (opcode == CPL_FW6_MSG || opcode == CPL_FW4_MSG) { + const struct cpl_fw6_msg *p = (void *)rsp; + + if (p->type == 0) + t4_handle_fw_rpl(q->adap, p->data); + } else if (opcode == CPL_L2T_WRITE_RPL) { + const struct cpl_l2t_write_rpl *p = (void *)rsp; + + do_l2t_write_rpl(q->adap, p); + } else if (opcode == CPL_SET_TCB_RPL) { + const struct cpl_set_tcb_rpl *p = (void *)rsp; + + filter_rpl(q->adap, p); + } else + dev_err(q->adap->pdev_dev, + "unexpected CPL %#x on FW event queue\n", opcode); +out: + return 0; +} + +/** + * uldrx_handler - response queue handler for ULD queues + * @q: the response queue that received the packet + * @rsp: the response queue descriptor holding the offload message + * @gl: the gather list of packet fragments + * + * Deliver an ingress offload packet to a ULD. All processing is done by + * the ULD, we just maintain statistics. + */ +static int uldrx_handler(struct sge_rspq *q, const __be64 *rsp, + const struct pkt_gl *gl) +{ + struct sge_ofld_rxq *rxq = container_of(q, struct sge_ofld_rxq, rspq); + + /* FW can send CPLs encapsulated in a CPL_FW4_MSG. + */ + if (((const struct rss_header *)rsp)->opcode == CPL_FW4_MSG && + ((const struct cpl_fw4_msg *)(rsp + 1))->type == FW_TYPE_RSSCPL) + rsp += 2; + + if (ulds[q->uld].rx_handler(q->adap->uld_handle[q->uld], rsp, gl)) { + rxq->stats.nomem++; + return -1; + } + if (gl == NULL) + rxq->stats.imm++; + else if (gl == CXGB4_MSG_AN) + rxq->stats.an++; + else + rxq->stats.pkts++; + return 0; +} + +static void disable_msi(struct adapter *adapter) +{ + if (adapter->flags & USING_MSIX) { + pci_disable_msix(adapter->pdev); + adapter->flags &= ~USING_MSIX; + } else if (adapter->flags & USING_MSI) { + pci_disable_msi(adapter->pdev); + adapter->flags &= ~USING_MSI; + } +} + +/* + * Interrupt handler for non-data events used with MSI-X. + */ +static irqreturn_t t4_nondata_intr(int irq, void *cookie) +{ + struct adapter *adap = cookie; + + u32 v = t4_read_reg(adap, MYPF_REG(PL_PF_INT_CAUSE)); + if (v & PFSW) { + adap->swintr = 1; + t4_write_reg(adap, MYPF_REG(PL_PF_INT_CAUSE), v); + } + t4_slow_intr_handler(adap); + return IRQ_HANDLED; +} + +/* + * Name the MSI-X interrupts. + */ +static void name_msix_vecs(struct adapter *adap) +{ + int i, j, msi_idx = 2, n = sizeof(adap->msix_info[0].desc); + + /* non-data interrupts */ + snprintf(adap->msix_info[0].desc, n, "%s", adap->port[0]->name); + + /* FW events */ + snprintf(adap->msix_info[1].desc, n, "%s-FWeventq", + adap->port[0]->name); + + /* Ethernet queues */ + for_each_port(adap, j) { + struct net_device *d = adap->port[j]; + const struct port_info *pi = netdev_priv(d); + + for (i = 0; i < pi->nqsets; i++, msi_idx++) + snprintf(adap->msix_info[msi_idx].desc, n, "%s-Rx%d", + d->name, i); + } + + /* offload queues */ + for_each_ofldrxq(&adap->sge, i) + snprintf(adap->msix_info[msi_idx++].desc, n, "%s-ofld%d", + adap->port[0]->name, i); + + for_each_rdmarxq(&adap->sge, i) + snprintf(adap->msix_info[msi_idx++].desc, n, "%s-rdma%d", + adap->port[0]->name, i); + + for_each_rdmaciq(&adap->sge, i) + snprintf(adap->msix_info[msi_idx++].desc, n, "%s-rdma-ciq%d", + adap->port[0]->name, i); +} + +static int request_msix_queue_irqs(struct adapter *adap) +{ + struct sge *s = &adap->sge; + int err, ethqidx, ofldqidx = 0, rdmaqidx = 0, rdmaciqqidx = 0; + int msi_index = 2; + + err = request_irq(adap->msix_info[1].vec, t4_sge_intr_msix, 0, + adap->msix_info[1].desc, &s->fw_evtq); + if (err) + return err; + + for_each_ethrxq(s, ethqidx) { + err = request_irq(adap->msix_info[msi_index].vec, + t4_sge_intr_msix, 0, + adap->msix_info[msi_index].desc, + &s->ethrxq[ethqidx].rspq); + if (err) + goto unwind; + msi_index++; + } + for_each_ofldrxq(s, ofldqidx) { + err = request_irq(adap->msix_info[msi_index].vec, + t4_sge_intr_msix, 0, + adap->msix_info[msi_index].desc, + &s->ofldrxq[ofldqidx].rspq); + if (err) + goto unwind; + msi_index++; + } + for_each_rdmarxq(s, rdmaqidx) { + err = request_irq(adap->msix_info[msi_index].vec, + t4_sge_intr_msix, 0, + adap->msix_info[msi_index].desc, + &s->rdmarxq[rdmaqidx].rspq); + if (err) + goto unwind; + msi_index++; + } + for_each_rdmaciq(s, rdmaciqqidx) { + err = request_irq(adap->msix_info[msi_index].vec, + t4_sge_intr_msix, 0, + adap->msix_info[msi_index].desc, + &s->rdmaciq[rdmaciqqidx].rspq); + if (err) + goto unwind; + msi_index++; + } + return 0; + +unwind: + while (--rdmaciqqidx >= 0) + free_irq(adap->msix_info[--msi_index].vec, + &s->rdmaciq[rdmaciqqidx].rspq); + while (--rdmaqidx >= 0) + free_irq(adap->msix_info[--msi_index].vec, + &s->rdmarxq[rdmaqidx].rspq); + while (--ofldqidx >= 0) + free_irq(adap->msix_info[--msi_index].vec, + &s->ofldrxq[ofldqidx].rspq); + while (--ethqidx >= 0) + free_irq(adap->msix_info[--msi_index].vec, + &s->ethrxq[ethqidx].rspq); + free_irq(adap->msix_info[1].vec, &s->fw_evtq); + return err; +} + +static void free_msix_queue_irqs(struct adapter *adap) +{ + int i, msi_index = 2; + struct sge *s = &adap->sge; + + free_irq(adap->msix_info[1].vec, &s->fw_evtq); + for_each_ethrxq(s, i) + free_irq(adap->msix_info[msi_index++].vec, &s->ethrxq[i].rspq); + for_each_ofldrxq(s, i) + free_irq(adap->msix_info[msi_index++].vec, &s->ofldrxq[i].rspq); + for_each_rdmarxq(s, i) + free_irq(adap->msix_info[msi_index++].vec, &s->rdmarxq[i].rspq); + for_each_rdmaciq(s, i) + free_irq(adap->msix_info[msi_index++].vec, &s->rdmaciq[i].rspq); +} + +/** + * write_rss - write the RSS table for a given port + * @pi: the port + * @queues: array of queue indices for RSS + * + * Sets up the portion of the HW RSS table for the port's VI to distribute + * packets to the Rx queues in @queues. + */ +static int write_rss(const struct port_info *pi, const u16 *queues) +{ + u16 *rss; + int i, err; + const struct sge_eth_rxq *q = &pi->adapter->sge.ethrxq[pi->first_qset]; + + rss = kmalloc(pi->rss_size * sizeof(u16), GFP_KERNEL); + if (!rss) + return -ENOMEM; + + /* map the queue indices to queue ids */ + for (i = 0; i < pi->rss_size; i++, queues++) + rss[i] = q[*queues].rspq.abs_id; + + err = t4_config_rss_range(pi->adapter, pi->adapter->fn, pi->viid, 0, + pi->rss_size, rss, pi->rss_size); + kfree(rss); + return err; +} + +/** + * setup_rss - configure RSS + * @adap: the adapter + * + * Sets up RSS for each port. + */ +static int setup_rss(struct adapter *adap) +{ + int i, err; + + for_each_port(adap, i) { + const struct port_info *pi = adap2pinfo(adap, i); + + err = write_rss(pi, pi->rss); + if (err) + return err; + } + return 0; +} + +/* + * Return the channel of the ingress queue with the given qid. + */ +static unsigned int rxq_to_chan(const struct sge *p, unsigned int qid) +{ + qid -= p->ingr_start; + return netdev2pinfo(p->ingr_map[qid]->netdev)->tx_chan; +} + +/* + * Wait until all NAPI handlers are descheduled. + */ +static void quiesce_rx(struct adapter *adap) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(adap->sge.ingr_map); i++) { + struct sge_rspq *q = adap->sge.ingr_map[i]; + + if (q && q->handler) + napi_disable(&q->napi); + } +} + +/* + * Enable NAPI scheduling and interrupt generation for all Rx queues. + */ +static void enable_rx(struct adapter *adap) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(adap->sge.ingr_map); i++) { + struct sge_rspq *q = adap->sge.ingr_map[i]; + + if (!q) + continue; + if (q->handler) + napi_enable(&q->napi); + /* 0-increment GTS to start the timer and enable interrupts */ + t4_write_reg(adap, MYPF_REG(SGE_PF_GTS), + SEINTARM(q->intr_params) | + INGRESSQID(q->cntxt_id)); + } +} + +/** + * setup_sge_queues - configure SGE Tx/Rx/response queues + * @adap: the adapter + * + * Determines how many sets of SGE queues to use and initializes them. + * We support multiple queue sets per port if we have MSI-X, otherwise + * just one queue set per port. + */ +static int setup_sge_queues(struct adapter *adap) +{ + int err, msi_idx, i, j; + struct sge *s = &adap->sge; + + bitmap_zero(s->starving_fl, MAX_EGRQ); + bitmap_zero(s->txq_maperr, MAX_EGRQ); + + if (adap->flags & USING_MSIX) + msi_idx = 1; /* vector 0 is for non-queue interrupts */ + else { + err = t4_sge_alloc_rxq(adap, &s->intrq, false, adap->port[0], 0, + NULL, NULL); + if (err) + return err; + msi_idx = -((int)s->intrq.abs_id + 1); + } + + err = t4_sge_alloc_rxq(adap, &s->fw_evtq, true, adap->port[0], + msi_idx, NULL, fwevtq_handler); + if (err) { +freeout: t4_free_sge_resources(adap); + return err; + } + + for_each_port(adap, i) { + struct net_device *dev = adap->port[i]; + struct port_info *pi = netdev_priv(dev); + struct sge_eth_rxq *q = &s->ethrxq[pi->first_qset]; + struct sge_eth_txq *t = &s->ethtxq[pi->first_qset]; + + for (j = 0; j < pi->nqsets; j++, q++) { + if (msi_idx > 0) + msi_idx++; + err = t4_sge_alloc_rxq(adap, &q->rspq, false, dev, + msi_idx, &q->fl, + t4_ethrx_handler); + if (err) + goto freeout; + q->rspq.idx = j; + memset(&q->stats, 0, sizeof(q->stats)); + } + for (j = 0; j < pi->nqsets; j++, t++) { + err = t4_sge_alloc_eth_txq(adap, t, dev, + netdev_get_tx_queue(dev, j), + s->fw_evtq.cntxt_id); + if (err) + goto freeout; + } + } + + j = s->ofldqsets / adap->params.nports; /* ofld queues per channel */ + for_each_ofldrxq(s, i) { + struct sge_ofld_rxq *q = &s->ofldrxq[i]; + struct net_device *dev = adap->port[i / j]; + + if (msi_idx > 0) + msi_idx++; + err = t4_sge_alloc_rxq(adap, &q->rspq, false, dev, msi_idx, + q->fl.size ? &q->fl : NULL, + uldrx_handler); + if (err) + goto freeout; + memset(&q->stats, 0, sizeof(q->stats)); + s->ofld_rxq[i] = q->rspq.abs_id; + err = t4_sge_alloc_ofld_txq(adap, &s->ofldtxq[i], dev, + s->fw_evtq.cntxt_id); + if (err) + goto freeout; + } + + for_each_rdmarxq(s, i) { + struct sge_ofld_rxq *q = &s->rdmarxq[i]; + + if (msi_idx > 0) + msi_idx++; + err = t4_sge_alloc_rxq(adap, &q->rspq, false, adap->port[i], + msi_idx, q->fl.size ? &q->fl : NULL, + uldrx_handler); + if (err) + goto freeout; + memset(&q->stats, 0, sizeof(q->stats)); + s->rdma_rxq[i] = q->rspq.abs_id; + } + + for_each_rdmaciq(s, i) { + struct sge_ofld_rxq *q = &s->rdmaciq[i]; + + if (msi_idx > 0) + msi_idx++; + err = t4_sge_alloc_rxq(adap, &q->rspq, false, adap->port[i], + msi_idx, q->fl.size ? &q->fl : NULL, + uldrx_handler); + if (err) + goto freeout; + memset(&q->stats, 0, sizeof(q->stats)); + s->rdma_ciq[i] = q->rspq.abs_id; + } + + for_each_port(adap, i) { + /* + * Note that ->rdmarxq[i].rspq.cntxt_id below is 0 if we don't + * have RDMA queues, and that's the right value. + */ + err = t4_sge_alloc_ctrl_txq(adap, &s->ctrlq[i], adap->port[i], + s->fw_evtq.cntxt_id, + s->rdmarxq[i].rspq.cntxt_id); + if (err) + goto freeout; + } + + t4_write_reg(adap, MPS_TRC_RSS_CONTROL, + RSSCONTROL(netdev2pinfo(adap->port[0])->tx_chan) | + QUEUENUMBER(s->ethrxq[0].rspq.abs_id)); + return 0; +} + +/* + * Allocate a chunk of memory using kmalloc or, if that fails, vmalloc. + * The allocated memory is cleared. + */ +void *t4_alloc_mem(size_t size) +{ + void *p = kzalloc(size, GFP_KERNEL | __GFP_NOWARN); + + if (!p) + p = vzalloc(size); + return p; +} + +/* + * Free memory allocated through alloc_mem(). + */ +static void t4_free_mem(void *addr) +{ + if (is_vmalloc_addr(addr)) + vfree(addr); + else + kfree(addr); +} + +/* Send a Work Request to write the filter at a specified index. We construct + * a Firmware Filter Work Request to have the work done and put the indicated + * filter into "pending" mode which will prevent any further actions against + * it till we get a reply from the firmware on the completion status of the + * request. + */ +static int set_filter_wr(struct adapter *adapter, int fidx) +{ + struct filter_entry *f = &adapter->tids.ftid_tab[fidx]; + struct sk_buff *skb; + struct fw_filter_wr *fwr; + unsigned int ftid; + + /* If the new filter requires loopback Destination MAC and/or VLAN + * rewriting then we need to allocate a Layer 2 Table (L2T) entry for + * the filter. + */ + if (f->fs.newdmac || f->fs.newvlan) { + /* allocate L2T entry for new filter */ + f->l2t = t4_l2t_alloc_switching(adapter->l2t); + if (f->l2t == NULL) + return -EAGAIN; + if (t4_l2t_set_switching(adapter, f->l2t, f->fs.vlan, + f->fs.eport, f->fs.dmac)) { + cxgb4_l2t_release(f->l2t); + f->l2t = NULL; + return -ENOMEM; + } + } + + ftid = adapter->tids.ftid_base + fidx; + + skb = alloc_skb(sizeof(*fwr), GFP_KERNEL | __GFP_NOFAIL); + fwr = (struct fw_filter_wr *)__skb_put(skb, sizeof(*fwr)); + memset(fwr, 0, sizeof(*fwr)); + + /* It would be nice to put most of the following in t4_hw.c but most + * of the work is translating the cxgbtool ch_filter_specification + * into the Work Request and the definition of that structure is + * currently in cxgbtool.h which isn't appropriate to pull into the + * common code. We may eventually try to come up with a more neutral + * filter specification structure but for now it's easiest to simply + * put this fairly direct code in line ... + */ + fwr->op_pkd = htonl(FW_WR_OP(FW_FILTER_WR)); + fwr->len16_pkd = htonl(FW_WR_LEN16(sizeof(*fwr)/16)); + fwr->tid_to_iq = + htonl(V_FW_FILTER_WR_TID(ftid) | + V_FW_FILTER_WR_RQTYPE(f->fs.type) | + V_FW_FILTER_WR_NOREPLY(0) | + V_FW_FILTER_WR_IQ(f->fs.iq)); + fwr->del_filter_to_l2tix = + htonl(V_FW_FILTER_WR_RPTTID(f->fs.rpttid) | + V_FW_FILTER_WR_DROP(f->fs.action == FILTER_DROP) | + V_FW_FILTER_WR_DIRSTEER(f->fs.dirsteer) | + V_FW_FILTER_WR_MASKHASH(f->fs.maskhash) | + V_FW_FILTER_WR_DIRSTEERHASH(f->fs.dirsteerhash) | + V_FW_FILTER_WR_LPBK(f->fs.action == FILTER_SWITCH) | + V_FW_FILTER_WR_DMAC(f->fs.newdmac) | + V_FW_FILTER_WR_SMAC(f->fs.newsmac) | + V_FW_FILTER_WR_INSVLAN(f->fs.newvlan == VLAN_INSERT || + f->fs.newvlan == VLAN_REWRITE) | + V_FW_FILTER_WR_RMVLAN(f->fs.newvlan == VLAN_REMOVE || + f->fs.newvlan == VLAN_REWRITE) | + V_FW_FILTER_WR_HITCNTS(f->fs.hitcnts) | + V_FW_FILTER_WR_TXCHAN(f->fs.eport) | + V_FW_FILTER_WR_PRIO(f->fs.prio) | + V_FW_FILTER_WR_L2TIX(f->l2t ? f->l2t->idx : 0)); + fwr->ethtype = htons(f->fs.val.ethtype); + fwr->ethtypem = htons(f->fs.mask.ethtype); + fwr->frag_to_ovlan_vldm = + (V_FW_FILTER_WR_FRAG(f->fs.val.frag) | + V_FW_FILTER_WR_FRAGM(f->fs.mask.frag) | + V_FW_FILTER_WR_IVLAN_VLD(f->fs.val.ivlan_vld) | + V_FW_FILTER_WR_OVLAN_VLD(f->fs.val.ovlan_vld) | + V_FW_FILTER_WR_IVLAN_VLDM(f->fs.mask.ivlan_vld) | + V_FW_FILTER_WR_OVLAN_VLDM(f->fs.mask.ovlan_vld)); + fwr->smac_sel = 0; + fwr->rx_chan_rx_rpl_iq = + htons(V_FW_FILTER_WR_RX_CHAN(0) | + V_FW_FILTER_WR_RX_RPL_IQ(adapter->sge.fw_evtq.abs_id)); + fwr->maci_to_matchtypem = + htonl(V_FW_FILTER_WR_MACI(f->fs.val.macidx) | + V_FW_FILTER_WR_MACIM(f->fs.mask.macidx) | + V_FW_FILTER_WR_FCOE(f->fs.val.fcoe) | + V_FW_FILTER_WR_FCOEM(f->fs.mask.fcoe) | + V_FW_FILTER_WR_PORT(f->fs.val.iport) | + V_FW_FILTER_WR_PORTM(f->fs.mask.iport) | + V_FW_FILTER_WR_MATCHTYPE(f->fs.val.matchtype) | + V_FW_FILTER_WR_MATCHTYPEM(f->fs.mask.matchtype)); + fwr->ptcl = f->fs.val.proto; + fwr->ptclm = f->fs.mask.proto; + fwr->ttyp = f->fs.val.tos; + fwr->ttypm = f->fs.mask.tos; + fwr->ivlan = htons(f->fs.val.ivlan); + fwr->ivlanm = htons(f->fs.mask.ivlan); + fwr->ovlan = htons(f->fs.val.ovlan); + fwr->ovlanm = htons(f->fs.mask.ovlan); + memcpy(fwr->lip, f->fs.val.lip, sizeof(fwr->lip)); + memcpy(fwr->lipm, f->fs.mask.lip, sizeof(fwr->lipm)); + memcpy(fwr->fip, f->fs.val.fip, sizeof(fwr->fip)); + memcpy(fwr->fipm, f->fs.mask.fip, sizeof(fwr->fipm)); + fwr->lp = htons(f->fs.val.lport); + fwr->lpm = htons(f->fs.mask.lport); + fwr->fp = htons(f->fs.val.fport); + fwr->fpm = htons(f->fs.mask.fport); + if (f->fs.newsmac) + memcpy(fwr->sma, f->fs.smac, sizeof(fwr->sma)); + + /* Mark the filter as "pending" and ship off the Filter Work Request. + * When we get the Work Request Reply we'll clear the pending status. + */ + f->pending = 1; + set_wr_txq(skb, CPL_PRIORITY_CONTROL, f->fs.val.iport & 0x3); + t4_ofld_send(adapter, skb); + return 0; +} + +/* Delete the filter at a specified index. + */ +static int del_filter_wr(struct adapter *adapter, int fidx) +{ + struct filter_entry *f = &adapter->tids.ftid_tab[fidx]; + struct sk_buff *skb; + struct fw_filter_wr *fwr; + unsigned int len, ftid; + + len = sizeof(*fwr); + ftid = adapter->tids.ftid_base + fidx; + + skb = alloc_skb(len, GFP_KERNEL | __GFP_NOFAIL); + fwr = (struct fw_filter_wr *)__skb_put(skb, len); + t4_mk_filtdelwr(ftid, fwr, adapter->sge.fw_evtq.abs_id); + + /* Mark the filter as "pending" and ship off the Filter Work Request. + * When we get the Work Request Reply we'll clear the pending status. + */ + f->pending = 1; + t4_mgmt_tx(adapter, skb); + return 0; +} + +static inline int is_offload(const struct adapter *adap) +{ + return adap->params.offload; +} + +/* + * Implementation of ethtool operations. + */ + +static u32 get_msglevel(struct net_device *dev) +{ + return netdev2adap(dev)->msg_enable; +} + +static void set_msglevel(struct net_device *dev, u32 val) +{ + netdev2adap(dev)->msg_enable = val; +} + +static char stats_strings[][ETH_GSTRING_LEN] = { + "TxOctetsOK ", + "TxFramesOK ", + "TxBroadcastFrames ", + "TxMulticastFrames ", + "TxUnicastFrames ", + "TxErrorFrames ", + + "TxFrames64 ", + "TxFrames65To127 ", + "TxFrames128To255 ", + "TxFrames256To511 ", + "TxFrames512To1023 ", + "TxFrames1024To1518 ", + "TxFrames1519ToMax ", + + "TxFramesDropped ", + "TxPauseFrames ", + "TxPPP0Frames ", + "TxPPP1Frames ", + "TxPPP2Frames ", + "TxPPP3Frames ", + "TxPPP4Frames ", + "TxPPP5Frames ", + "TxPPP6Frames ", + "TxPPP7Frames ", + + "RxOctetsOK ", + "RxFramesOK ", + "RxBroadcastFrames ", + "RxMulticastFrames ", + "RxUnicastFrames ", + + "RxFramesTooLong ", + "RxJabberErrors ", + "RxFCSErrors ", + "RxLengthErrors ", + "RxSymbolErrors ", + "RxRuntFrames ", + + "RxFrames64 ", + "RxFrames65To127 ", + "RxFrames128To255 ", + "RxFrames256To511 ", + "RxFrames512To1023 ", + "RxFrames1024To1518 ", + "RxFrames1519ToMax ", + + "RxPauseFrames ", + "RxPPP0Frames ", + "RxPPP1Frames ", + "RxPPP2Frames ", + "RxPPP3Frames ", + "RxPPP4Frames ", + "RxPPP5Frames ", + "RxPPP6Frames ", + "RxPPP7Frames ", + + "RxBG0FramesDropped ", + "RxBG1FramesDropped ", + "RxBG2FramesDropped ", + "RxBG3FramesDropped ", + "RxBG0FramesTrunc ", + "RxBG1FramesTrunc ", + "RxBG2FramesTrunc ", + "RxBG3FramesTrunc ", + + "TSO ", + "TxCsumOffload ", + "RxCsumGood ", + "VLANextractions ", + "VLANinsertions ", + "GROpackets ", + "GROmerged ", + "WriteCoalSuccess ", + "WriteCoalFail ", +}; + +static int get_sset_count(struct net_device *dev, int sset) +{ + switch (sset) { + case ETH_SS_STATS: + return ARRAY_SIZE(stats_strings); + default: + return -EOPNOTSUPP; + } +} + +#define T4_REGMAP_SIZE (160 * 1024) +#define T5_REGMAP_SIZE (332 * 1024) + +static int get_regs_len(struct net_device *dev) +{ + struct adapter *adap = netdev2adap(dev); + if (is_t4(adap->params.chip)) + return T4_REGMAP_SIZE; + else + return T5_REGMAP_SIZE; +} + +static int get_eeprom_len(struct net_device *dev) +{ + return EEPROMSIZE; +} + +static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) +{ + struct adapter *adapter = netdev2adap(dev); + + strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); + strlcpy(info->version, DRV_VERSION, sizeof(info->version)); + strlcpy(info->bus_info, pci_name(adapter->pdev), + sizeof(info->bus_info)); + + if (adapter->params.fw_vers) + snprintf(info->fw_version, sizeof(info->fw_version), + "%u.%u.%u.%u, TP %u.%u.%u.%u", + FW_HDR_FW_VER_MAJOR_GET(adapter->params.fw_vers), + FW_HDR_FW_VER_MINOR_GET(adapter->params.fw_vers), + FW_HDR_FW_VER_MICRO_GET(adapter->params.fw_vers), + FW_HDR_FW_VER_BUILD_GET(adapter->params.fw_vers), + FW_HDR_FW_VER_MAJOR_GET(adapter->params.tp_vers), + FW_HDR_FW_VER_MINOR_GET(adapter->params.tp_vers), + FW_HDR_FW_VER_MICRO_GET(adapter->params.tp_vers), + FW_HDR_FW_VER_BUILD_GET(adapter->params.tp_vers)); +} + +static void get_strings(struct net_device *dev, u32 stringset, u8 *data) +{ + if (stringset == ETH_SS_STATS) + memcpy(data, stats_strings, sizeof(stats_strings)); +} + +/* + * port stats maintained per queue of the port. They should be in the same + * order as in stats_strings above. + */ +struct queue_port_stats { + u64 tso; + u64 tx_csum; + u64 rx_csum; + u64 vlan_ex; + u64 vlan_ins; + u64 gro_pkts; + u64 gro_merged; +}; + +static void collect_sge_port_stats(const struct adapter *adap, + const struct port_info *p, struct queue_port_stats *s) +{ + int i; + const struct sge_eth_txq *tx = &adap->sge.ethtxq[p->first_qset]; + const struct sge_eth_rxq *rx = &adap->sge.ethrxq[p->first_qset]; + + memset(s, 0, sizeof(*s)); + for (i = 0; i < p->nqsets; i++, rx++, tx++) { + s->tso += tx->tso; + s->tx_csum += tx->tx_cso; + s->rx_csum += rx->stats.rx_cso; + s->vlan_ex += rx->stats.vlan_ex; + s->vlan_ins += tx->vlan_ins; + s->gro_pkts += rx->stats.lro_pkts; + s->gro_merged += rx->stats.lro_merged; + } +} + +static void get_stats(struct net_device *dev, struct ethtool_stats *stats, + u64 *data) +{ + struct port_info *pi = netdev_priv(dev); + struct adapter *adapter = pi->adapter; + u32 val1, val2; + + t4_get_port_stats(adapter, pi->tx_chan, (struct port_stats *)data); + + data += sizeof(struct port_stats) / sizeof(u64); + collect_sge_port_stats(adapter, pi, (struct queue_port_stats *)data); + data += sizeof(struct queue_port_stats) / sizeof(u64); + if (!is_t4(adapter->params.chip)) { + t4_write_reg(adapter, SGE_STAT_CFG, STATSOURCE_T5(7)); + val1 = t4_read_reg(adapter, SGE_STAT_TOTAL); + val2 = t4_read_reg(adapter, SGE_STAT_MATCH); + *data = val1 - val2; + data++; + *data = val2; + data++; + } else { + memset(data, 0, 2 * sizeof(u64)); + *data += 2; + } +} + +/* + * Return a version number to identify the type of adapter. The scheme is: + * - bits 0..9: chip version + * - bits 10..15: chip revision + * - bits 16..23: register dump version + */ +static inline unsigned int mk_adap_vers(const struct adapter *ap) +{ + return CHELSIO_CHIP_VERSION(ap->params.chip) | + (CHELSIO_CHIP_RELEASE(ap->params.chip) << 10) | (1 << 16); +} + +static void reg_block_dump(struct adapter *ap, void *buf, unsigned int start, + unsigned int end) +{ + u32 *p = buf + start; + + for ( ; start <= end; start += sizeof(u32)) + *p++ = t4_read_reg(ap, start); +} + +static void get_regs(struct net_device *dev, struct ethtool_regs *regs, + void *buf) +{ + static const unsigned int t4_reg_ranges[] = { + 0x1008, 0x1108, + 0x1180, 0x11b4, + 0x11fc, 0x123c, + 0x1300, 0x173c, + 0x1800, 0x18fc, + 0x3000, 0x30d8, + 0x30e0, 0x5924, + 0x5960, 0x59d4, + 0x5a00, 0x5af8, + 0x6000, 0x6098, + 0x6100, 0x6150, + 0x6200, 0x6208, + 0x6240, 0x6248, + 0x6280, 0x6338, + 0x6370, 0x638c, + 0x6400, 0x643c, + 0x6500, 0x6524, + 0x6a00, 0x6a38, + 0x6a60, 0x6a78, + 0x6b00, 0x6b84, + 0x6bf0, 0x6c84, + 0x6cf0, 0x6d84, + 0x6df0, 0x6e84, + 0x6ef0, 0x6f84, + 0x6ff0, 0x7084, + 0x70f0, 0x7184, + 0x71f0, 0x7284, + 0x72f0, 0x7384, + 0x73f0, 0x7450, + 0x7500, 0x7530, + 0x7600, 0x761c, + 0x7680, 0x76cc, + 0x7700, 0x7798, + 0x77c0, 0x77fc, + 0x7900, 0x79fc, + 0x7b00, 0x7c38, + 0x7d00, 0x7efc, + 0x8dc0, 0x8e1c, + 0x8e30, 0x8e78, + 0x8ea0, 0x8f6c, + 0x8fc0, 0x9074, + 0x90fc, 0x90fc, + 0x9400, 0x9458, + 0x9600, 0x96bc, + 0x9800, 0x9808, + 0x9820, 0x983c, + 0x9850, 0x9864, + 0x9c00, 0x9c6c, + 0x9c80, 0x9cec, + 0x9d00, 0x9d6c, + 0x9d80, 0x9dec, + 0x9e00, 0x9e6c, + 0x9e80, 0x9eec, + 0x9f00, 0x9f6c, + 0x9f80, 0x9fec, + 0xd004, 0xd03c, + 0xdfc0, 0xdfe0, + 0xe000, 0xea7c, + 0xf000, 0x11190, + 0x19040, 0x1906c, + 0x19078, 0x19080, + 0x1908c, 0x19124, + 0x19150, 0x191b0, + 0x191d0, 0x191e8, + 0x19238, 0x1924c, + 0x193f8, 0x19474, + 0x19490, 0x194f8, + 0x19800, 0x19f30, + 0x1a000, 0x1a06c, + 0x1a0b0, 0x1a120, + 0x1a128, 0x1a138, + 0x1a190, 0x1a1c4, + 0x1a1fc, 0x1a1fc, + 0x1e040, 0x1e04c, + 0x1e284, 0x1e28c, + 0x1e2c0, 0x1e2c0, + 0x1e2e0, 0x1e2e0, + 0x1e300, 0x1e384, + 0x1e3c0, 0x1e3c8, + 0x1e440, 0x1e44c, + 0x1e684, 0x1e68c, + 0x1e6c0, 0x1e6c0, + 0x1e6e0, 0x1e6e0, + 0x1e700, 0x1e784, + 0x1e7c0, 0x1e7c8, + 0x1e840, 0x1e84c, + 0x1ea84, 0x1ea8c, + 0x1eac0, 0x1eac0, + 0x1eae0, 0x1eae0, + 0x1eb00, 0x1eb84, + 0x1ebc0, 0x1ebc8, + 0x1ec40, 0x1ec4c, + 0x1ee84, 0x1ee8c, + 0x1eec0, 0x1eec0, + 0x1eee0, 0x1eee0, + 0x1ef00, 0x1ef84, + 0x1efc0, 0x1efc8, + 0x1f040, 0x1f04c, + 0x1f284, 0x1f28c, + 0x1f2c0, 0x1f2c0, + 0x1f2e0, 0x1f2e0, + 0x1f300, 0x1f384, + 0x1f3c0, 0x1f3c8, + 0x1f440, 0x1f44c, + 0x1f684, 0x1f68c, + 0x1f6c0, 0x1f6c0, + 0x1f6e0, 0x1f6e0, + 0x1f700, 0x1f784, + 0x1f7c0, 0x1f7c8, + 0x1f840, 0x1f84c, + 0x1fa84, 0x1fa8c, + 0x1fac0, 0x1fac0, + 0x1fae0, 0x1fae0, + 0x1fb00, 0x1fb84, + 0x1fbc0, 0x1fbc8, + 0x1fc40, 0x1fc4c, + 0x1fe84, 0x1fe8c, + 0x1fec0, 0x1fec0, + 0x1fee0, 0x1fee0, + 0x1ff00, 0x1ff84, + 0x1ffc0, 0x1ffc8, + 0x20000, 0x2002c, + 0x20100, 0x2013c, + 0x20190, 0x201c8, + 0x20200, 0x20318, + 0x20400, 0x20528, + 0x20540, 0x20614, + 0x21000, 0x21040, + 0x2104c, 0x21060, + 0x210c0, 0x210ec, + 0x21200, 0x21268, + 0x21270, 0x21284, + 0x212fc, 0x21388, + 0x21400, 0x21404, + 0x21500, 0x21518, + 0x2152c, 0x2153c, + 0x21550, 0x21554, + 0x21600, 0x21600, + 0x21608, 0x21628, + 0x21630, 0x2163c, + 0x21700, 0x2171c, + 0x21780, 0x2178c, + 0x21800, 0x21c38, + 0x21c80, 0x21d7c, + 0x21e00, 0x21e04, + 0x22000, 0x2202c, + 0x22100, 0x2213c, + 0x22190, 0x221c8, + 0x22200, 0x22318, + 0x22400, 0x22528, + 0x22540, 0x22614, + 0x23000, 0x23040, + 0x2304c, 0x23060, + 0x230c0, 0x230ec, + 0x23200, 0x23268, + 0x23270, 0x23284, + 0x232fc, 0x23388, + 0x23400, 0x23404, + 0x23500, 0x23518, + 0x2352c, 0x2353c, + 0x23550, 0x23554, + 0x23600, 0x23600, + 0x23608, 0x23628, + 0x23630, 0x2363c, + 0x23700, 0x2371c, + 0x23780, 0x2378c, + 0x23800, 0x23c38, + 0x23c80, 0x23d7c, + 0x23e00, 0x23e04, + 0x24000, 0x2402c, + 0x24100, 0x2413c, + 0x24190, 0x241c8, + 0x24200, 0x24318, + 0x24400, 0x24528, + 0x24540, 0x24614, + 0x25000, 0x25040, + 0x2504c, 0x25060, + 0x250c0, 0x250ec, + 0x25200, 0x25268, + 0x25270, 0x25284, + 0x252fc, 0x25388, + 0x25400, 0x25404, + 0x25500, 0x25518, + 0x2552c, 0x2553c, + 0x25550, 0x25554, + 0x25600, 0x25600, + 0x25608, 0x25628, + 0x25630, 0x2563c, + 0x25700, 0x2571c, + 0x25780, 0x2578c, + 0x25800, 0x25c38, + 0x25c80, 0x25d7c, + 0x25e00, 0x25e04, + 0x26000, 0x2602c, + 0x26100, 0x2613c, + 0x26190, 0x261c8, + 0x26200, 0x26318, + 0x26400, 0x26528, + 0x26540, 0x26614, + 0x27000, 0x27040, + 0x2704c, 0x27060, + 0x270c0, 0x270ec, + 0x27200, 0x27268, + 0x27270, 0x27284, + 0x272fc, 0x27388, + 0x27400, 0x27404, + 0x27500, 0x27518, + 0x2752c, 0x2753c, + 0x27550, 0x27554, + 0x27600, 0x27600, + 0x27608, 0x27628, + 0x27630, 0x2763c, + 0x27700, 0x2771c, + 0x27780, 0x2778c, + 0x27800, 0x27c38, + 0x27c80, 0x27d7c, + 0x27e00, 0x27e04 + }; + + static const unsigned int t5_reg_ranges[] = { + 0x1008, 0x1148, + 0x1180, 0x11b4, + 0x11fc, 0x123c, + 0x1280, 0x173c, + 0x1800, 0x18fc, + 0x3000, 0x3028, + 0x3060, 0x30d8, + 0x30e0, 0x30fc, + 0x3140, 0x357c, + 0x35a8, 0x35cc, + 0x35ec, 0x35ec, + 0x3600, 0x5624, + 0x56cc, 0x575c, + 0x580c, 0x5814, + 0x5890, 0x58bc, + 0x5940, 0x59dc, + 0x59fc, 0x5a18, + 0x5a60, 0x5a9c, + 0x5b9c, 0x5bfc, + 0x6000, 0x6040, + 0x6058, 0x614c, + 0x7700, 0x7798, + 0x77c0, 0x78fc, + 0x7b00, 0x7c54, + 0x7d00, 0x7efc, + 0x8dc0, 0x8de0, + 0x8df8, 0x8e84, + 0x8ea0, 0x8f84, + 0x8fc0, 0x90f8, + 0x9400, 0x9470, + 0x9600, 0x96f4, + 0x9800, 0x9808, + 0x9820, 0x983c, + 0x9850, 0x9864, + 0x9c00, 0x9c6c, + 0x9c80, 0x9cec, + 0x9d00, 0x9d6c, + 0x9d80, 0x9dec, + 0x9e00, 0x9e6c, + 0x9e80, 0x9eec, + 0x9f00, 0x9f6c, + 0x9f80, 0xa020, + 0xd004, 0xd03c, + 0xdfc0, 0xdfe0, + 0xe000, 0x11088, + 0x1109c, 0x1117c, + 0x11190, 0x11204, + 0x19040, 0x1906c, + 0x19078, 0x19080, + 0x1908c, 0x19124, + 0x19150, 0x191b0, + 0x191d0, 0x191e8, + 0x19238, 0x19290, + 0x193f8, 0x19474, + 0x19490, 0x194cc, + 0x194f0, 0x194f8, + 0x19c00, 0x19c60, + 0x19c94, 0x19e10, + 0x19e50, 0x19f34, + 0x19f40, 0x19f50, + 0x19f90, 0x19fe4, + 0x1a000, 0x1a06c, + 0x1a0b0, 0x1a120, + 0x1a128, 0x1a138, + 0x1a190, 0x1a1c4, + 0x1a1fc, 0x1a1fc, + 0x1e008, 0x1e00c, + 0x1e040, 0x1e04c, + 0x1e284, 0x1e290, + 0x1e2c0, 0x1e2c0, + 0x1e2e0, 0x1e2e0, + 0x1e300, 0x1e384, + 0x1e3c0, 0x1e3c8, + 0x1e408, 0x1e40c, + 0x1e440, 0x1e44c, + 0x1e684, 0x1e690, + 0x1e6c0, 0x1e6c0, + 0x1e6e0, 0x1e6e0, + 0x1e700, 0x1e784, + 0x1e7c0, 0x1e7c8, + 0x1e808, 0x1e80c, + 0x1e840, 0x1e84c, + 0x1ea84, 0x1ea90, + 0x1eac0, 0x1eac0, + 0x1eae0, 0x1eae0, + 0x1eb00, 0x1eb84, + 0x1ebc0, 0x1ebc8, + 0x1ec08, 0x1ec0c, + 0x1ec40, 0x1ec4c, + 0x1ee84, 0x1ee90, + 0x1eec0, 0x1eec0, + 0x1eee0, 0x1eee0, + 0x1ef00, 0x1ef84, + 0x1efc0, 0x1efc8, + 0x1f008, 0x1f00c, + 0x1f040, 0x1f04c, + 0x1f284, 0x1f290, + 0x1f2c0, 0x1f2c0, + 0x1f2e0, 0x1f2e0, + 0x1f300, 0x1f384, + 0x1f3c0, 0x1f3c8, + 0x1f408, 0x1f40c, + 0x1f440, 0x1f44c, + 0x1f684, 0x1f690, + 0x1f6c0, 0x1f6c0, + 0x1f6e0, 0x1f6e0, + 0x1f700, 0x1f784, + 0x1f7c0, 0x1f7c8, + 0x1f808, 0x1f80c, + 0x1f840, 0x1f84c, + 0x1fa84, 0x1fa90, + 0x1fac0, 0x1fac0, + 0x1fae0, 0x1fae0, + 0x1fb00, 0x1fb84, + 0x1fbc0, 0x1fbc8, + 0x1fc08, 0x1fc0c, + 0x1fc40, 0x1fc4c, + 0x1fe84, 0x1fe90, + 0x1fec0, 0x1fec0, + 0x1fee0, 0x1fee0, + 0x1ff00, 0x1ff84, + 0x1ffc0, 0x1ffc8, + 0x30000, 0x30030, + 0x30100, 0x30144, + 0x30190, 0x301d0, + 0x30200, 0x30318, + 0x30400, 0x3052c, + 0x30540, 0x3061c, + 0x30800, 0x30834, + 0x308c0, 0x30908, + 0x30910, 0x309ac, + 0x30a00, 0x30a04, + 0x30a0c, 0x30a2c, + 0x30a44, 0x30a50, + 0x30a74, 0x30c24, + 0x30d08, 0x30d14, + 0x30d1c, 0x30d20, + 0x30d3c, 0x30d50, + 0x31200, 0x3120c, + 0x31220, 0x31220, + 0x31240, 0x31240, + 0x31600, 0x31600, + 0x31608, 0x3160c, + 0x31a00, 0x31a1c, + 0x31e04, 0x31e20, + 0x31e38, 0x31e3c, + 0x31e80, 0x31e80, + 0x31e88, 0x31ea8, + 0x31eb0, 0x31eb4, + 0x31ec8, 0x31ed4, + 0x31fb8, 0x32004, + 0x32208, 0x3223c, + 0x32600, 0x32630, + 0x32a00, 0x32abc, + 0x32b00, 0x32b70, + 0x33000, 0x33048, + 0x33060, 0x3309c, + 0x330f0, 0x33148, + 0x33160, 0x3319c, + 0x331f0, 0x332e4, + 0x332f8, 0x333e4, + 0x333f8, 0x33448, + 0x33460, 0x3349c, + 0x334f0, 0x33548, + 0x33560, 0x3359c, + 0x335f0, 0x336e4, + 0x336f8, 0x337e4, + 0x337f8, 0x337fc, + 0x33814, 0x33814, + 0x3382c, 0x3382c, + 0x33880, 0x3388c, + 0x338e8, 0x338ec, + 0x33900, 0x33948, + 0x33960, 0x3399c, + 0x339f0, 0x33ae4, + 0x33af8, 0x33b10, + 0x33b28, 0x33b28, + 0x33b3c, 0x33b50, + 0x33bf0, 0x33c10, + 0x33c28, 0x33c28, + 0x33c3c, 0x33c50, + 0x33cf0, 0x33cfc, + 0x34000, 0x34030, + 0x34100, 0x34144, + 0x34190, 0x341d0, + 0x34200, 0x34318, + 0x34400, 0x3452c, + 0x34540, 0x3461c, + 0x34800, 0x34834, + 0x348c0, 0x34908, + 0x34910, 0x349ac, + 0x34a00, 0x34a04, + 0x34a0c, 0x34a2c, + 0x34a44, 0x34a50, + 0x34a74, 0x34c24, + 0x34d08, 0x34d14, + 0x34d1c, 0x34d20, + 0x34d3c, 0x34d50, + 0x35200, 0x3520c, + 0x35220, 0x35220, + 0x35240, 0x35240, + 0x35600, 0x35600, + 0x35608, 0x3560c, + 0x35a00, 0x35a1c, + 0x35e04, 0x35e20, + 0x35e38, 0x35e3c, + 0x35e80, 0x35e80, + 0x35e88, 0x35ea8, + 0x35eb0, 0x35eb4, + 0x35ec8, 0x35ed4, + 0x35fb8, 0x36004, + 0x36208, 0x3623c, + 0x36600, 0x36630, + 0x36a00, 0x36abc, + 0x36b00, 0x36b70, + 0x37000, 0x37048, + 0x37060, 0x3709c, + 0x370f0, 0x37148, + 0x37160, 0x3719c, + 0x371f0, 0x372e4, + 0x372f8, 0x373e4, + 0x373f8, 0x37448, + 0x37460, 0x3749c, + 0x374f0, 0x37548, + 0x37560, 0x3759c, + 0x375f0, 0x376e4, + 0x376f8, 0x377e4, + 0x377f8, 0x377fc, + 0x37814, 0x37814, + 0x3782c, 0x3782c, + 0x37880, 0x3788c, + 0x378e8, 0x378ec, + 0x37900, 0x37948, + 0x37960, 0x3799c, + 0x379f0, 0x37ae4, + 0x37af8, 0x37b10, + 0x37b28, 0x37b28, + 0x37b3c, 0x37b50, + 0x37bf0, 0x37c10, + 0x37c28, 0x37c28, + 0x37c3c, 0x37c50, + 0x37cf0, 0x37cfc, + 0x38000, 0x38030, + 0x38100, 0x38144, + 0x38190, 0x381d0, + 0x38200, 0x38318, + 0x38400, 0x3852c, + 0x38540, 0x3861c, + 0x38800, 0x38834, + 0x388c0, 0x38908, + 0x38910, 0x389ac, + 0x38a00, 0x38a04, + 0x38a0c, 0x38a2c, + 0x38a44, 0x38a50, + 0x38a74, 0x38c24, + 0x38d08, 0x38d14, + 0x38d1c, 0x38d20, + 0x38d3c, 0x38d50, + 0x39200, 0x3920c, + 0x39220, 0x39220, + 0x39240, 0x39240, + 0x39600, 0x39600, + 0x39608, 0x3960c, + 0x39a00, 0x39a1c, + 0x39e04, 0x39e20, + 0x39e38, 0x39e3c, + 0x39e80, 0x39e80, + 0x39e88, 0x39ea8, + 0x39eb0, 0x39eb4, + 0x39ec8, 0x39ed4, + 0x39fb8, 0x3a004, + 0x3a208, 0x3a23c, + 0x3a600, 0x3a630, + 0x3aa00, 0x3aabc, + 0x3ab00, 0x3ab70, + 0x3b000, 0x3b048, + 0x3b060, 0x3b09c, + 0x3b0f0, 0x3b148, + 0x3b160, 0x3b19c, + 0x3b1f0, 0x3b2e4, + 0x3b2f8, 0x3b3e4, + 0x3b3f8, 0x3b448, + 0x3b460, 0x3b49c, + 0x3b4f0, 0x3b548, + 0x3b560, 0x3b59c, + 0x3b5f0, 0x3b6e4, + 0x3b6f8, 0x3b7e4, + 0x3b7f8, 0x3b7fc, + 0x3b814, 0x3b814, + 0x3b82c, 0x3b82c, + 0x3b880, 0x3b88c, + 0x3b8e8, 0x3b8ec, + 0x3b900, 0x3b948, + 0x3b960, 0x3b99c, + 0x3b9f0, 0x3bae4, + 0x3baf8, 0x3bb10, + 0x3bb28, 0x3bb28, + 0x3bb3c, 0x3bb50, + 0x3bbf0, 0x3bc10, + 0x3bc28, 0x3bc28, + 0x3bc3c, 0x3bc50, + 0x3bcf0, 0x3bcfc, + 0x3c000, 0x3c030, + 0x3c100, 0x3c144, + 0x3c190, 0x3c1d0, + 0x3c200, 0x3c318, + 0x3c400, 0x3c52c, + 0x3c540, 0x3c61c, + 0x3c800, 0x3c834, + 0x3c8c0, 0x3c908, + 0x3c910, 0x3c9ac, + 0x3ca00, 0x3ca04, + 0x3ca0c, 0x3ca2c, + 0x3ca44, 0x3ca50, + 0x3ca74, 0x3cc24, + 0x3cd08, 0x3cd14, + 0x3cd1c, 0x3cd20, + 0x3cd3c, 0x3cd50, + 0x3d200, 0x3d20c, + 0x3d220, 0x3d220, + 0x3d240, 0x3d240, + 0x3d600, 0x3d600, + 0x3d608, 0x3d60c, + 0x3da00, 0x3da1c, + 0x3de04, 0x3de20, + 0x3de38, 0x3de3c, + 0x3de80, 0x3de80, + 0x3de88, 0x3dea8, + 0x3deb0, 0x3deb4, + 0x3dec8, 0x3ded4, + 0x3dfb8, 0x3e004, + 0x3e208, 0x3e23c, + 0x3e600, 0x3e630, + 0x3ea00, 0x3eabc, + 0x3eb00, 0x3eb70, + 0x3f000, 0x3f048, + 0x3f060, 0x3f09c, + 0x3f0f0, 0x3f148, + 0x3f160, 0x3f19c, + 0x3f1f0, 0x3f2e4, + 0x3f2f8, 0x3f3e4, + 0x3f3f8, 0x3f448, + 0x3f460, 0x3f49c, + 0x3f4f0, 0x3f548, + 0x3f560, 0x3f59c, + 0x3f5f0, 0x3f6e4, + 0x3f6f8, 0x3f7e4, + 0x3f7f8, 0x3f7fc, + 0x3f814, 0x3f814, + 0x3f82c, 0x3f82c, + 0x3f880, 0x3f88c, + 0x3f8e8, 0x3f8ec, + 0x3f900, 0x3f948, + 0x3f960, 0x3f99c, + 0x3f9f0, 0x3fae4, + 0x3faf8, 0x3fb10, + 0x3fb28, 0x3fb28, + 0x3fb3c, 0x3fb50, + 0x3fbf0, 0x3fc10, + 0x3fc28, 0x3fc28, + 0x3fc3c, 0x3fc50, + 0x3fcf0, 0x3fcfc, + 0x40000, 0x4000c, + 0x40040, 0x40068, + 0x40080, 0x40144, + 0x40180, 0x4018c, + 0x40200, 0x40298, + 0x402ac, 0x4033c, + 0x403f8, 0x403fc, + 0x41304, 0x413c4, + 0x41400, 0x4141c, + 0x41480, 0x414d0, + 0x44000, 0x44078, + 0x440c0, 0x44278, + 0x442c0, 0x44478, + 0x444c0, 0x44678, + 0x446c0, 0x44878, + 0x448c0, 0x449fc, + 0x45000, 0x45068, + 0x45080, 0x45084, + 0x450a0, 0x450b0, + 0x45200, 0x45268, + 0x45280, 0x45284, + 0x452a0, 0x452b0, + 0x460c0, 0x460e4, + 0x47000, 0x4708c, + 0x47200, 0x47250, + 0x47400, 0x47420, + 0x47600, 0x47618, + 0x47800, 0x47814, + 0x48000, 0x4800c, + 0x48040, 0x48068, + 0x48080, 0x48144, + 0x48180, 0x4818c, + 0x48200, 0x48298, + 0x482ac, 0x4833c, + 0x483f8, 0x483fc, + 0x49304, 0x493c4, + 0x49400, 0x4941c, + 0x49480, 0x494d0, + 0x4c000, 0x4c078, + 0x4c0c0, 0x4c278, + 0x4c2c0, 0x4c478, + 0x4c4c0, 0x4c678, + 0x4c6c0, 0x4c878, + 0x4c8c0, 0x4c9fc, + 0x4d000, 0x4d068, + 0x4d080, 0x4d084, + 0x4d0a0, 0x4d0b0, + 0x4d200, 0x4d268, + 0x4d280, 0x4d284, + 0x4d2a0, 0x4d2b0, + 0x4e0c0, 0x4e0e4, + 0x4f000, 0x4f08c, + 0x4f200, 0x4f250, + 0x4f400, 0x4f420, + 0x4f600, 0x4f618, + 0x4f800, 0x4f814, + 0x50000, 0x500cc, + 0x50400, 0x50400, + 0x50800, 0x508cc, + 0x50c00, 0x50c00, + 0x51000, 0x5101c, + 0x51300, 0x51308, + }; + + int i; + struct adapter *ap = netdev2adap(dev); + static const unsigned int *reg_ranges; + int arr_size = 0, buf_size = 0; + + if (is_t4(ap->params.chip)) { + reg_ranges = &t4_reg_ranges[0]; + arr_size = ARRAY_SIZE(t4_reg_ranges); + buf_size = T4_REGMAP_SIZE; + } else { + reg_ranges = &t5_reg_ranges[0]; + arr_size = ARRAY_SIZE(t5_reg_ranges); + buf_size = T5_REGMAP_SIZE; + } + + regs->version = mk_adap_vers(ap); + + memset(buf, 0, buf_size); + for (i = 0; i < arr_size; i += 2) + reg_block_dump(ap, buf, reg_ranges[i], reg_ranges[i + 1]); +} + +static int restart_autoneg(struct net_device *dev) +{ + struct port_info *p = netdev_priv(dev); + + if (!netif_running(dev)) + return -EAGAIN; + if (p->link_cfg.autoneg != AUTONEG_ENABLE) + return -EINVAL; + t4_restart_aneg(p->adapter, p->adapter->fn, p->tx_chan); + return 0; +} + +static int identify_port(struct net_device *dev, + enum ethtool_phys_id_state state) +{ + unsigned int val; + struct adapter *adap = netdev2adap(dev); + + if (state == ETHTOOL_ID_ACTIVE) + val = 0xffff; + else if (state == ETHTOOL_ID_INACTIVE) + val = 0; + else + return -EINVAL; + + return t4_identify_port(adap, adap->fn, netdev2pinfo(dev)->viid, val); +} + +static unsigned int from_fw_linkcaps(unsigned int type, unsigned int caps) +{ + unsigned int v = 0; + + if (type == FW_PORT_TYPE_BT_SGMII || type == FW_PORT_TYPE_BT_XFI || + type == FW_PORT_TYPE_BT_XAUI) { + v |= SUPPORTED_TP; + if (caps & FW_PORT_CAP_SPEED_100M) + v |= SUPPORTED_100baseT_Full; + if (caps & FW_PORT_CAP_SPEED_1G) + v |= SUPPORTED_1000baseT_Full; + if (caps & FW_PORT_CAP_SPEED_10G) + v |= SUPPORTED_10000baseT_Full; + } else if (type == FW_PORT_TYPE_KX4 || type == FW_PORT_TYPE_KX) { + v |= SUPPORTED_Backplane; + if (caps & FW_PORT_CAP_SPEED_1G) + v |= SUPPORTED_1000baseKX_Full; + if (caps & FW_PORT_CAP_SPEED_10G) + v |= SUPPORTED_10000baseKX4_Full; + } else if (type == FW_PORT_TYPE_KR) + v |= SUPPORTED_Backplane | SUPPORTED_10000baseKR_Full; + else if (type == FW_PORT_TYPE_BP_AP) + v |= SUPPORTED_Backplane | SUPPORTED_10000baseR_FEC | + SUPPORTED_10000baseKR_Full | SUPPORTED_1000baseKX_Full; + else if (type == FW_PORT_TYPE_BP4_AP) + v |= SUPPORTED_Backplane | SUPPORTED_10000baseR_FEC | + SUPPORTED_10000baseKR_Full | SUPPORTED_1000baseKX_Full | + SUPPORTED_10000baseKX4_Full; + else if (type == FW_PORT_TYPE_FIBER_XFI || + type == FW_PORT_TYPE_FIBER_XAUI || type == FW_PORT_TYPE_SFP) + v |= SUPPORTED_FIBRE; + else if (type == FW_PORT_TYPE_BP40_BA) + v |= SUPPORTED_40000baseSR4_Full; + + if (caps & FW_PORT_CAP_ANEG) + v |= SUPPORTED_Autoneg; + return v; +} + +static unsigned int to_fw_linkcaps(unsigned int caps) +{ + unsigned int v = 0; + + if (caps & ADVERTISED_100baseT_Full) + v |= FW_PORT_CAP_SPEED_100M; + if (caps & ADVERTISED_1000baseT_Full) + v |= FW_PORT_CAP_SPEED_1G; + if (caps & ADVERTISED_10000baseT_Full) + v |= FW_PORT_CAP_SPEED_10G; + if (caps & ADVERTISED_40000baseSR4_Full) + v |= FW_PORT_CAP_SPEED_40G; + return v; +} + +static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + const struct port_info *p = netdev_priv(dev); + + if (p->port_type == FW_PORT_TYPE_BT_SGMII || + p->port_type == FW_PORT_TYPE_BT_XFI || + p->port_type == FW_PORT_TYPE_BT_XAUI) + cmd->port = PORT_TP; + else if (p->port_type == FW_PORT_TYPE_FIBER_XFI || + p->port_type == FW_PORT_TYPE_FIBER_XAUI) + cmd->port = PORT_FIBRE; + else if (p->port_type == FW_PORT_TYPE_SFP || + p->port_type == FW_PORT_TYPE_QSFP_10G || + p->port_type == FW_PORT_TYPE_QSFP) { + if (p->mod_type == FW_PORT_MOD_TYPE_LR || + p->mod_type == FW_PORT_MOD_TYPE_SR || + p->mod_type == FW_PORT_MOD_TYPE_ER || + p->mod_type == FW_PORT_MOD_TYPE_LRM) + cmd->port = PORT_FIBRE; + else if (p->mod_type == FW_PORT_MOD_TYPE_TWINAX_PASSIVE || + p->mod_type == FW_PORT_MOD_TYPE_TWINAX_ACTIVE) + cmd->port = PORT_DA; + else + cmd->port = PORT_OTHER; + } else + cmd->port = PORT_OTHER; + + if (p->mdio_addr >= 0) { + cmd->phy_address = p->mdio_addr; + cmd->transceiver = XCVR_EXTERNAL; + cmd->mdio_support = p->port_type == FW_PORT_TYPE_BT_SGMII ? + MDIO_SUPPORTS_C22 : MDIO_SUPPORTS_C45; + } else { + cmd->phy_address = 0; /* not really, but no better option */ + cmd->transceiver = XCVR_INTERNAL; + cmd->mdio_support = 0; + } + + cmd->supported = from_fw_linkcaps(p->port_type, p->link_cfg.supported); + cmd->advertising = from_fw_linkcaps(p->port_type, + p->link_cfg.advertising); + ethtool_cmd_speed_set(cmd, + netif_carrier_ok(dev) ? p->link_cfg.speed : 0); + cmd->duplex = DUPLEX_FULL; + cmd->autoneg = p->link_cfg.autoneg; + cmd->maxtxpkt = 0; + cmd->maxrxpkt = 0; + return 0; +} + +static unsigned int speed_to_caps(int speed) +{ + if (speed == 100) + return FW_PORT_CAP_SPEED_100M; + if (speed == 1000) + return FW_PORT_CAP_SPEED_1G; + if (speed == 10000) + return FW_PORT_CAP_SPEED_10G; + if (speed == 40000) + return FW_PORT_CAP_SPEED_40G; + return 0; +} + +static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + unsigned int cap; + struct port_info *p = netdev_priv(dev); + struct link_config *lc = &p->link_cfg; + u32 speed = ethtool_cmd_speed(cmd); + + if (cmd->duplex != DUPLEX_FULL) /* only full-duplex supported */ + return -EINVAL; + + if (!(lc->supported & FW_PORT_CAP_ANEG)) { + /* + * PHY offers a single speed. See if that's what's + * being requested. + */ + if (cmd->autoneg == AUTONEG_DISABLE && + (lc->supported & speed_to_caps(speed))) + return 0; + return -EINVAL; + } + + if (cmd->autoneg == AUTONEG_DISABLE) { + cap = speed_to_caps(speed); + + if (!(lc->supported & cap) || + (speed == 1000) || + (speed == 10000) || + (speed == 40000)) + return -EINVAL; + lc->requested_speed = cap; + lc->advertising = 0; + } else { + cap = to_fw_linkcaps(cmd->advertising); + if (!(lc->supported & cap)) + return -EINVAL; + lc->requested_speed = 0; + lc->advertising = cap | FW_PORT_CAP_ANEG; + } + lc->autoneg = cmd->autoneg; + + if (netif_running(dev)) + return t4_link_start(p->adapter, p->adapter->fn, p->tx_chan, + lc); + return 0; +} + +static void get_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *epause) +{ + struct port_info *p = netdev_priv(dev); + + epause->autoneg = (p->link_cfg.requested_fc & PAUSE_AUTONEG) != 0; + epause->rx_pause = (p->link_cfg.fc & PAUSE_RX) != 0; + epause->tx_pause = (p->link_cfg.fc & PAUSE_TX) != 0; +} + +static int set_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *epause) +{ + struct port_info *p = netdev_priv(dev); + struct link_config *lc = &p->link_cfg; + + if (epause->autoneg == AUTONEG_DISABLE) + lc->requested_fc = 0; + else if (lc->supported & FW_PORT_CAP_ANEG) + lc->requested_fc = PAUSE_AUTONEG; + else + return -EINVAL; + + if (epause->rx_pause) + lc->requested_fc |= PAUSE_RX; + if (epause->tx_pause) + lc->requested_fc |= PAUSE_TX; + if (netif_running(dev)) + return t4_link_start(p->adapter, p->adapter->fn, p->tx_chan, + lc); + return 0; +} + +static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e) +{ + const struct port_info *pi = netdev_priv(dev); + const struct sge *s = &pi->adapter->sge; + + e->rx_max_pending = MAX_RX_BUFFERS; + e->rx_mini_max_pending = MAX_RSPQ_ENTRIES; + e->rx_jumbo_max_pending = 0; + e->tx_max_pending = MAX_TXQ_ENTRIES; + + e->rx_pending = s->ethrxq[pi->first_qset].fl.size - 8; + e->rx_mini_pending = s->ethrxq[pi->first_qset].rspq.size; + e->rx_jumbo_pending = 0; + e->tx_pending = s->ethtxq[pi->first_qset].q.size; +} + +static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e) +{ + int i; + const struct port_info *pi = netdev_priv(dev); + struct adapter *adapter = pi->adapter; + struct sge *s = &adapter->sge; + + if (e->rx_pending > MAX_RX_BUFFERS || e->rx_jumbo_pending || + e->tx_pending > MAX_TXQ_ENTRIES || + e->rx_mini_pending > MAX_RSPQ_ENTRIES || + e->rx_mini_pending < MIN_RSPQ_ENTRIES || + e->rx_pending < MIN_FL_ENTRIES || e->tx_pending < MIN_TXQ_ENTRIES) + return -EINVAL; + + if (adapter->flags & FULL_INIT_DONE) + return -EBUSY; + + for (i = 0; i < pi->nqsets; ++i) { + s->ethtxq[pi->first_qset + i].q.size = e->tx_pending; + s->ethrxq[pi->first_qset + i].fl.size = e->rx_pending + 8; + s->ethrxq[pi->first_qset + i].rspq.size = e->rx_mini_pending; + } + return 0; +} + +static int closest_timer(const struct sge *s, int time) +{ + int i, delta, match = 0, min_delta = INT_MAX; + + for (i = 0; i < ARRAY_SIZE(s->timer_val); i++) { + delta = time - s->timer_val[i]; + if (delta < 0) + delta = -delta; + if (delta < min_delta) { + min_delta = delta; + match = i; + } + } + return match; +} + +static int closest_thres(const struct sge *s, int thres) +{ + int i, delta, match = 0, min_delta = INT_MAX; + + for (i = 0; i < ARRAY_SIZE(s->counter_val); i++) { + delta = thres - s->counter_val[i]; + if (delta < 0) + delta = -delta; + if (delta < min_delta) { + min_delta = delta; + match = i; + } + } + return match; +} + +/* + * Return a queue's interrupt hold-off time in us. 0 means no timer. + */ +static unsigned int qtimer_val(const struct adapter *adap, + const struct sge_rspq *q) +{ + unsigned int idx = q->intr_params >> 1; + + return idx < SGE_NTIMERS ? adap->sge.timer_val[idx] : 0; +} + +/** + * set_rspq_intr_params - set a queue's interrupt holdoff parameters + * @q: the Rx queue + * @us: the hold-off time in us, or 0 to disable timer + * @cnt: the hold-off packet count, or 0 to disable counter + * + * Sets an Rx queue's interrupt hold-off time and packet count. At least + * one of the two needs to be enabled for the queue to generate interrupts. + */ +static int set_rspq_intr_params(struct sge_rspq *q, + unsigned int us, unsigned int cnt) +{ + struct adapter *adap = q->adap; + + if ((us | cnt) == 0) + cnt = 1; + + if (cnt) { + int err; + u32 v, new_idx; + + new_idx = closest_thres(&adap->sge, cnt); + if (q->desc && q->pktcnt_idx != new_idx) { + /* the queue has already been created, update it */ + v = FW_PARAMS_MNEM(FW_PARAMS_MNEM_DMAQ) | + FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DMAQ_IQ_INTCNTTHRESH) | + FW_PARAMS_PARAM_YZ(q->cntxt_id); + err = t4_set_params(adap, adap->fn, adap->fn, 0, 1, &v, + &new_idx); + if (err) + return err; + } + q->pktcnt_idx = new_idx; + } + + us = us == 0 ? 6 : closest_timer(&adap->sge, us); + q->intr_params = QINTR_TIMER_IDX(us) | (cnt > 0 ? QINTR_CNT_EN : 0); + return 0; +} + +/** + * set_rx_intr_params - set a net devices's RX interrupt holdoff paramete! + * @dev: the network device + * @us: the hold-off time in us, or 0 to disable timer + * @cnt: the hold-off packet count, or 0 to disable counter + * + * Set the RX interrupt hold-off parameters for a network device. + */ +static int set_rx_intr_params(struct net_device *dev, + unsigned int us, unsigned int cnt) +{ + int i, err; + struct port_info *pi = netdev_priv(dev); + struct adapter *adap = pi->adapter; + struct sge_eth_rxq *q = &adap->sge.ethrxq[pi->first_qset]; + + for (i = 0; i < pi->nqsets; i++, q++) { + err = set_rspq_intr_params(&q->rspq, us, cnt); + if (err) + return err; + } + return 0; +} + +static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c) +{ + return set_rx_intr_params(dev, c->rx_coalesce_usecs, + c->rx_max_coalesced_frames); +} + +static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c) +{ + const struct port_info *pi = netdev_priv(dev); + const struct adapter *adap = pi->adapter; + const struct sge_rspq *rq = &adap->sge.ethrxq[pi->first_qset].rspq; + + c->rx_coalesce_usecs = qtimer_val(adap, rq); + c->rx_max_coalesced_frames = (rq->intr_params & QINTR_CNT_EN) ? + adap->sge.counter_val[rq->pktcnt_idx] : 0; + return 0; +} + +/** + * eeprom_ptov - translate a physical EEPROM address to virtual + * @phys_addr: the physical EEPROM address + * @fn: the PCI function number + * @sz: size of function-specific area + * + * Translate a physical EEPROM address to virtual. The first 1K is + * accessed through virtual addresses starting at 31K, the rest is + * accessed through virtual addresses starting at 0. + * + * The mapping is as follows: + * [0..1K) -> [31K..32K) + * [1K..1K+A) -> [31K-A..31K) + * [1K+A..ES) -> [0..ES-A-1K) + * + * where A = @fn * @sz, and ES = EEPROM size. + */ +static int eeprom_ptov(unsigned int phys_addr, unsigned int fn, unsigned int sz) +{ + fn *= sz; + if (phys_addr < 1024) + return phys_addr + (31 << 10); + if (phys_addr < 1024 + fn) + return 31744 - fn + phys_addr - 1024; + if (phys_addr < EEPROMSIZE) + return phys_addr - 1024 - fn; + return -EINVAL; +} + +/* + * The next two routines implement eeprom read/write from physical addresses. + */ +static int eeprom_rd_phys(struct adapter *adap, unsigned int phys_addr, u32 *v) +{ + int vaddr = eeprom_ptov(phys_addr, adap->fn, EEPROMPFSIZE); + + if (vaddr >= 0) + vaddr = pci_read_vpd(adap->pdev, vaddr, sizeof(u32), v); + return vaddr < 0 ? vaddr : 0; +} + +static int eeprom_wr_phys(struct adapter *adap, unsigned int phys_addr, u32 v) +{ + int vaddr = eeprom_ptov(phys_addr, adap->fn, EEPROMPFSIZE); + + if (vaddr >= 0) + vaddr = pci_write_vpd(adap->pdev, vaddr, sizeof(u32), &v); + return vaddr < 0 ? vaddr : 0; +} + +#define EEPROM_MAGIC 0x38E2F10C + +static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e, + u8 *data) +{ + int i, err = 0; + struct adapter *adapter = netdev2adap(dev); + + u8 *buf = kmalloc(EEPROMSIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + e->magic = EEPROM_MAGIC; + for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4) + err = eeprom_rd_phys(adapter, i, (u32 *)&buf[i]); + + if (!err) + memcpy(data, buf + e->offset, e->len); + kfree(buf); + return err; +} + +static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, + u8 *data) +{ + u8 *buf; + int err = 0; + u32 aligned_offset, aligned_len, *p; + struct adapter *adapter = netdev2adap(dev); + + if (eeprom->magic != EEPROM_MAGIC) + return -EINVAL; + + aligned_offset = eeprom->offset & ~3; + aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3; + + if (adapter->fn > 0) { + u32 start = 1024 + adapter->fn * EEPROMPFSIZE; + + if (aligned_offset < start || + aligned_offset + aligned_len > start + EEPROMPFSIZE) + return -EPERM; + } + + if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) { + /* + * RMW possibly needed for first or last words. + */ + buf = kmalloc(aligned_len, GFP_KERNEL); + if (!buf) + return -ENOMEM; + err = eeprom_rd_phys(adapter, aligned_offset, (u32 *)buf); + if (!err && aligned_len > 4) + err = eeprom_rd_phys(adapter, + aligned_offset + aligned_len - 4, + (u32 *)&buf[aligned_len - 4]); + if (err) + goto out; + memcpy(buf + (eeprom->offset & 3), data, eeprom->len); + } else + buf = data; + + err = t4_seeprom_wp(adapter, false); + if (err) + goto out; + + for (p = (u32 *)buf; !err && aligned_len; aligned_len -= 4, p++) { + err = eeprom_wr_phys(adapter, aligned_offset, *p); + aligned_offset += 4; + } + + if (!err) + err = t4_seeprom_wp(adapter, true); +out: + if (buf != data) + kfree(buf); + return err; +} + +static int set_flash(struct net_device *netdev, struct ethtool_flash *ef) +{ + int ret; + const struct firmware *fw; + struct adapter *adap = netdev2adap(netdev); + + ef->data[sizeof(ef->data) - 1] = '\0'; + ret = request_firmware(&fw, ef->data, adap->pdev_dev); + if (ret < 0) + return ret; + + ret = t4_load_fw(adap, fw->data, fw->size); + release_firmware(fw); + if (!ret) + dev_info(adap->pdev_dev, "loaded firmware %s\n", ef->data); + return ret; +} + +#define WOL_SUPPORTED (WAKE_BCAST | WAKE_MAGIC) +#define BCAST_CRC 0xa0ccc1a6 + +static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + wol->supported = WAKE_BCAST | WAKE_MAGIC; + wol->wolopts = netdev2adap(dev)->wol; + memset(&wol->sopass, 0, sizeof(wol->sopass)); +} + +static int set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + int err = 0; + struct port_info *pi = netdev_priv(dev); + + if (wol->wolopts & ~WOL_SUPPORTED) + return -EINVAL; + t4_wol_magic_enable(pi->adapter, pi->tx_chan, + (wol->wolopts & WAKE_MAGIC) ? dev->dev_addr : NULL); + if (wol->wolopts & WAKE_BCAST) { + err = t4_wol_pat_enable(pi->adapter, pi->tx_chan, 0xfe, ~0ULL, + ~0ULL, 0, false); + if (!err) + err = t4_wol_pat_enable(pi->adapter, pi->tx_chan, 1, + ~6ULL, ~0ULL, BCAST_CRC, true); + } else + t4_wol_pat_enable(pi->adapter, pi->tx_chan, 0, 0, 0, 0, false); + return err; +} + +static int cxgb_set_features(struct net_device *dev, netdev_features_t features) +{ + const struct port_info *pi = netdev_priv(dev); + netdev_features_t changed = dev->features ^ features; + int err; + + if (!(changed & NETIF_F_HW_VLAN_CTAG_RX)) + return 0; + + err = t4_set_rxmode(pi->adapter, pi->adapter->fn, pi->viid, -1, + -1, -1, -1, + !!(features & NETIF_F_HW_VLAN_CTAG_RX), true); + if (unlikely(err)) + dev->features = features ^ NETIF_F_HW_VLAN_CTAG_RX; + return err; +} + +static u32 get_rss_table_size(struct net_device *dev) +{ + const struct port_info *pi = netdev_priv(dev); + + return pi->rss_size; +} + +static int get_rss_table(struct net_device *dev, u32 *p, u8 *key) +{ + const struct port_info *pi = netdev_priv(dev); + unsigned int n = pi->rss_size; + + while (n--) + p[n] = pi->rss[n]; + return 0; +} + +static int set_rss_table(struct net_device *dev, const u32 *p, const u8 *key) +{ + unsigned int i; + struct port_info *pi = netdev_priv(dev); + + for (i = 0; i < pi->rss_size; i++) + pi->rss[i] = p[i]; + if (pi->adapter->flags & FULL_INIT_DONE) + return write_rss(pi, pi->rss); + return 0; +} + +static int get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info, + u32 *rules) +{ + const struct port_info *pi = netdev_priv(dev); + + switch (info->cmd) { + case ETHTOOL_GRXFH: { + unsigned int v = pi->rss_mode; + + info->data = 0; + switch (info->flow_type) { + case TCP_V4_FLOW: + if (v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) + info->data = RXH_IP_SRC | RXH_IP_DST | + RXH_L4_B_0_1 | RXH_L4_B_2_3; + else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) + info->data = RXH_IP_SRC | RXH_IP_DST; + break; + case UDP_V4_FLOW: + if ((v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) && + (v & FW_RSS_VI_CONFIG_CMD_UDPEN)) + info->data = RXH_IP_SRC | RXH_IP_DST | + RXH_L4_B_0_1 | RXH_L4_B_2_3; + else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) + info->data = RXH_IP_SRC | RXH_IP_DST; + break; + case SCTP_V4_FLOW: + case AH_ESP_V4_FLOW: + case IPV4_FLOW: + if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) + info->data = RXH_IP_SRC | RXH_IP_DST; + break; + case TCP_V6_FLOW: + if (v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) + info->data = RXH_IP_SRC | RXH_IP_DST | + RXH_L4_B_0_1 | RXH_L4_B_2_3; + else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) + info->data = RXH_IP_SRC | RXH_IP_DST; + break; + case UDP_V6_FLOW: + if ((v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) && + (v & FW_RSS_VI_CONFIG_CMD_UDPEN)) + info->data = RXH_IP_SRC | RXH_IP_DST | + RXH_L4_B_0_1 | RXH_L4_B_2_3; + else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) + info->data = RXH_IP_SRC | RXH_IP_DST; + break; + case SCTP_V6_FLOW: + case AH_ESP_V6_FLOW: + case IPV6_FLOW: + if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) + info->data = RXH_IP_SRC | RXH_IP_DST; + break; + } + return 0; + } + case ETHTOOL_GRXRINGS: + info->data = pi->nqsets; + return 0; + } + return -EOPNOTSUPP; +} + +static const struct ethtool_ops cxgb_ethtool_ops = { + .get_settings = get_settings, + .set_settings = set_settings, + .get_drvinfo = get_drvinfo, + .get_msglevel = get_msglevel, + .set_msglevel = set_msglevel, + .get_ringparam = get_sge_param, + .set_ringparam = set_sge_param, + .get_coalesce = get_coalesce, + .set_coalesce = set_coalesce, + .get_eeprom_len = get_eeprom_len, + .get_eeprom = get_eeprom, + .set_eeprom = set_eeprom, + .get_pauseparam = get_pauseparam, + .set_pauseparam = set_pauseparam, + .get_link = ethtool_op_get_link, + .get_strings = get_strings, + .set_phys_id = identify_port, + .nway_reset = restart_autoneg, + .get_sset_count = get_sset_count, + .get_ethtool_stats = get_stats, + .get_regs_len = get_regs_len, + .get_regs = get_regs, + .get_wol = get_wol, + .set_wol = set_wol, + .get_rxnfc = get_rxnfc, + .get_rxfh_indir_size = get_rss_table_size, + .get_rxfh = get_rss_table, + .set_rxfh = set_rss_table, + .flash_device = set_flash, +}; + +/* + * debugfs support + */ +static ssize_t mem_read(struct file *file, char __user *buf, size_t count, + loff_t *ppos) +{ + loff_t pos = *ppos; + loff_t avail = file_inode(file)->i_size; + unsigned int mem = (uintptr_t)file->private_data & 3; + struct adapter *adap = file->private_data - mem; + + if (pos < 0) + return -EINVAL; + if (pos >= avail) + return 0; + if (count > avail - pos) + count = avail - pos; + + while (count) { + size_t len; + int ret, ofst; + __be32 data[16]; + + if ((mem == MEM_MC) || (mem == MEM_MC1)) + ret = t4_mc_read(adap, mem % MEM_MC, pos, data, NULL); + else + ret = t4_edc_read(adap, mem, pos, data, NULL); + if (ret) + return ret; + + ofst = pos % sizeof(data); + len = min(count, sizeof(data) - ofst); + if (copy_to_user(buf, (u8 *)data + ofst, len)) + return -EFAULT; + + buf += len; + pos += len; + count -= len; + } + count = pos - *ppos; + *ppos = pos; + return count; +} + +static const struct file_operations mem_debugfs_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = mem_read, + .llseek = default_llseek, +}; + +static void add_debugfs_mem(struct adapter *adap, const char *name, + unsigned int idx, unsigned int size_mb) +{ + struct dentry *de; + + de = debugfs_create_file(name, S_IRUSR, adap->debugfs_root, + (void *)adap + idx, &mem_debugfs_fops); + if (de && de->d_inode) + de->d_inode->i_size = size_mb << 20; +} + +static int setup_debugfs(struct adapter *adap) +{ + int i; + u32 size; + + if (IS_ERR_OR_NULL(adap->debugfs_root)) + return -1; + + i = t4_read_reg(adap, MA_TARGET_MEM_ENABLE); + if (i & EDRAM0_ENABLE) { + size = t4_read_reg(adap, MA_EDRAM0_BAR); + add_debugfs_mem(adap, "edc0", MEM_EDC0, EDRAM_SIZE_GET(size)); + } + if (i & EDRAM1_ENABLE) { + size = t4_read_reg(adap, MA_EDRAM1_BAR); + add_debugfs_mem(adap, "edc1", MEM_EDC1, EDRAM_SIZE_GET(size)); + } + if (is_t4(adap->params.chip)) { + size = t4_read_reg(adap, MA_EXT_MEMORY_BAR); + if (i & EXT_MEM_ENABLE) + add_debugfs_mem(adap, "mc", MEM_MC, + EXT_MEM_SIZE_GET(size)); + } else { + if (i & EXT_MEM_ENABLE) { + size = t4_read_reg(adap, MA_EXT_MEMORY_BAR); + add_debugfs_mem(adap, "mc0", MEM_MC0, + EXT_MEM_SIZE_GET(size)); + } + if (i & EXT_MEM1_ENABLE) { + size = t4_read_reg(adap, MA_EXT_MEMORY1_BAR); + add_debugfs_mem(adap, "mc1", MEM_MC1, + EXT_MEM_SIZE_GET(size)); + } + } + if (adap->l2t) + debugfs_create_file("l2t", S_IRUSR, adap->debugfs_root, adap, + &t4_l2t_fops); + return 0; +} + +/* + * upper-layer driver support + */ + +/* + * Allocate an active-open TID and set it to the supplied value. + */ +int cxgb4_alloc_atid(struct tid_info *t, void *data) +{ + int atid = -1; + + spin_lock_bh(&t->atid_lock); + if (t->afree) { + union aopen_entry *p = t->afree; + + atid = (p - t->atid_tab) + t->atid_base; + t->afree = p->next; + p->data = data; + t->atids_in_use++; + } + spin_unlock_bh(&t->atid_lock); + return atid; +} +EXPORT_SYMBOL(cxgb4_alloc_atid); + +/* + * Release an active-open TID. + */ +void cxgb4_free_atid(struct tid_info *t, unsigned int atid) +{ + union aopen_entry *p = &t->atid_tab[atid - t->atid_base]; + + spin_lock_bh(&t->atid_lock); + p->next = t->afree; + t->afree = p; + t->atids_in_use--; + spin_unlock_bh(&t->atid_lock); +} +EXPORT_SYMBOL(cxgb4_free_atid); + +/* + * Allocate a server TID and set it to the supplied value. + */ +int cxgb4_alloc_stid(struct tid_info *t, int family, void *data) +{ + int stid; + + spin_lock_bh(&t->stid_lock); + if (family == PF_INET) { + stid = find_first_zero_bit(t->stid_bmap, t->nstids); + if (stid < t->nstids) + __set_bit(stid, t->stid_bmap); + else + stid = -1; + } else { + stid = bitmap_find_free_region(t->stid_bmap, t->nstids, 2); + if (stid < 0) + stid = -1; + } + if (stid >= 0) { + t->stid_tab[stid].data = data; + stid += t->stid_base; + /* IPv6 requires max of 520 bits or 16 cells in TCAM + * This is equivalent to 4 TIDs. With CLIP enabled it + * needs 2 TIDs. + */ + if (family == PF_INET) + t->stids_in_use++; + else + t->stids_in_use += 4; + } + spin_unlock_bh(&t->stid_lock); + return stid; +} +EXPORT_SYMBOL(cxgb4_alloc_stid); + +/* Allocate a server filter TID and set it to the supplied value. + */ +int cxgb4_alloc_sftid(struct tid_info *t, int family, void *data) +{ + int stid; + + spin_lock_bh(&t->stid_lock); + if (family == PF_INET) { + stid = find_next_zero_bit(t->stid_bmap, + t->nstids + t->nsftids, t->nstids); + if (stid < (t->nstids + t->nsftids)) + __set_bit(stid, t->stid_bmap); + else + stid = -1; + } else { + stid = -1; + } + if (stid >= 0) { + t->stid_tab[stid].data = data; + stid -= t->nstids; + stid += t->sftid_base; + t->stids_in_use++; + } + spin_unlock_bh(&t->stid_lock); + return stid; +} +EXPORT_SYMBOL(cxgb4_alloc_sftid); + +/* Release a server TID. + */ +void cxgb4_free_stid(struct tid_info *t, unsigned int stid, int family) +{ + /* Is it a server filter TID? */ + if (t->nsftids && (stid >= t->sftid_base)) { + stid -= t->sftid_base; + stid += t->nstids; + } else { + stid -= t->stid_base; + } + + spin_lock_bh(&t->stid_lock); + if (family == PF_INET) + __clear_bit(stid, t->stid_bmap); + else + bitmap_release_region(t->stid_bmap, stid, 2); + t->stid_tab[stid].data = NULL; + if (family == PF_INET) + t->stids_in_use--; + else + t->stids_in_use -= 4; + spin_unlock_bh(&t->stid_lock); +} +EXPORT_SYMBOL(cxgb4_free_stid); + +/* + * Populate a TID_RELEASE WR. Caller must properly size the skb. + */ +static void mk_tid_release(struct sk_buff *skb, unsigned int chan, + unsigned int tid) +{ + struct cpl_tid_release *req; + + set_wr_txq(skb, CPL_PRIORITY_SETUP, chan); + req = (struct cpl_tid_release *)__skb_put(skb, sizeof(*req)); + INIT_TP_WR(req, tid); + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_TID_RELEASE, tid)); +} + +/* + * Queue a TID release request and if necessary schedule a work queue to + * process it. + */ +static void cxgb4_queue_tid_release(struct tid_info *t, unsigned int chan, + unsigned int tid) +{ + void **p = &t->tid_tab[tid]; + struct adapter *adap = container_of(t, struct adapter, tids); + + spin_lock_bh(&adap->tid_release_lock); + *p = adap->tid_release_head; + /* Low 2 bits encode the Tx channel number */ + adap->tid_release_head = (void **)((uintptr_t)p | chan); + if (!adap->tid_release_task_busy) { + adap->tid_release_task_busy = true; + queue_work(workq, &adap->tid_release_task); + } + spin_unlock_bh(&adap->tid_release_lock); +} + +/* + * Process the list of pending TID release requests. + */ +static void process_tid_release_list(struct work_struct *work) +{ + struct sk_buff *skb; + struct adapter *adap; + + adap = container_of(work, struct adapter, tid_release_task); + + spin_lock_bh(&adap->tid_release_lock); + while (adap->tid_release_head) { + void **p = adap->tid_release_head; + unsigned int chan = (uintptr_t)p & 3; + p = (void *)p - chan; + + adap->tid_release_head = *p; + *p = NULL; + spin_unlock_bh(&adap->tid_release_lock); + + while (!(skb = alloc_skb(sizeof(struct cpl_tid_release), + GFP_KERNEL))) + schedule_timeout_uninterruptible(1); + + mk_tid_release(skb, chan, p - adap->tids.tid_tab); + t4_ofld_send(adap, skb); + spin_lock_bh(&adap->tid_release_lock); + } + adap->tid_release_task_busy = false; + spin_unlock_bh(&adap->tid_release_lock); +} + +/* + * Release a TID and inform HW. If we are unable to allocate the release + * message we defer to a work queue. + */ +void cxgb4_remove_tid(struct tid_info *t, unsigned int chan, unsigned int tid) +{ + void *old; + struct sk_buff *skb; + struct adapter *adap = container_of(t, struct adapter, tids); + + old = t->tid_tab[tid]; + skb = alloc_skb(sizeof(struct cpl_tid_release), GFP_ATOMIC); + if (likely(skb)) { + t->tid_tab[tid] = NULL; + mk_tid_release(skb, chan, tid); + t4_ofld_send(adap, skb); + } else + cxgb4_queue_tid_release(t, chan, tid); + if (old) + atomic_dec(&t->tids_in_use); +} +EXPORT_SYMBOL(cxgb4_remove_tid); + +/* + * Allocate and initialize the TID tables. Returns 0 on success. + */ +static int tid_init(struct tid_info *t) +{ + size_t size; + unsigned int stid_bmap_size; + unsigned int natids = t->natids; + struct adapter *adap = container_of(t, struct adapter, tids); + + stid_bmap_size = BITS_TO_LONGS(t->nstids + t->nsftids); + size = t->ntids * sizeof(*t->tid_tab) + + natids * sizeof(*t->atid_tab) + + t->nstids * sizeof(*t->stid_tab) + + t->nsftids * sizeof(*t->stid_tab) + + stid_bmap_size * sizeof(long) + + t->nftids * sizeof(*t->ftid_tab) + + t->nsftids * sizeof(*t->ftid_tab); + + t->tid_tab = t4_alloc_mem(size); + if (!t->tid_tab) + return -ENOMEM; + + t->atid_tab = (union aopen_entry *)&t->tid_tab[t->ntids]; + t->stid_tab = (struct serv_entry *)&t->atid_tab[natids]; + t->stid_bmap = (unsigned long *)&t->stid_tab[t->nstids + t->nsftids]; + t->ftid_tab = (struct filter_entry *)&t->stid_bmap[stid_bmap_size]; + spin_lock_init(&t->stid_lock); + spin_lock_init(&t->atid_lock); + + t->stids_in_use = 0; + t->afree = NULL; + t->atids_in_use = 0; + atomic_set(&t->tids_in_use, 0); + + /* Setup the free list for atid_tab and clear the stid bitmap. */ + if (natids) { + while (--natids) + t->atid_tab[natids - 1].next = &t->atid_tab[natids]; + t->afree = t->atid_tab; + } + bitmap_zero(t->stid_bmap, t->nstids + t->nsftids); + /* Reserve stid 0 for T4/T5 adapters */ + if (!t->stid_base && + (is_t4(adap->params.chip) || is_t5(adap->params.chip))) + __set_bit(0, t->stid_bmap); + + return 0; +} + +static int cxgb4_clip_get(const struct net_device *dev, + const struct in6_addr *lip) +{ + struct adapter *adap; + struct fw_clip_cmd c; + + adap = netdev2adap(dev); + memset(&c, 0, sizeof(c)); + c.op_to_write = htonl(FW_CMD_OP(FW_CLIP_CMD) | + FW_CMD_REQUEST | FW_CMD_WRITE); + c.alloc_to_len16 = htonl(F_FW_CLIP_CMD_ALLOC | FW_LEN16(c)); + c.ip_hi = *(__be64 *)(lip->s6_addr); + c.ip_lo = *(__be64 *)(lip->s6_addr + 8); + return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false); +} + +static int cxgb4_clip_release(const struct net_device *dev, + const struct in6_addr *lip) +{ + struct adapter *adap; + struct fw_clip_cmd c; + + adap = netdev2adap(dev); + memset(&c, 0, sizeof(c)); + c.op_to_write = htonl(FW_CMD_OP(FW_CLIP_CMD) | + FW_CMD_REQUEST | FW_CMD_READ); + c.alloc_to_len16 = htonl(F_FW_CLIP_CMD_FREE | FW_LEN16(c)); + c.ip_hi = *(__be64 *)(lip->s6_addr); + c.ip_lo = *(__be64 *)(lip->s6_addr + 8); + return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false); +} + +/** + * cxgb4_create_server - create an IP server + * @dev: the device + * @stid: the server TID + * @sip: local IP address to bind server to + * @sport: the server's TCP port + * @queue: queue to direct messages from this server to + * + * Create an IP server for the given port and address. + * Returns <0 on error and one of the %NET_XMIT_* values on success. + */ +int cxgb4_create_server(const struct net_device *dev, unsigned int stid, + __be32 sip, __be16 sport, __be16 vlan, + unsigned int queue) +{ + unsigned int chan; + struct sk_buff *skb; + struct adapter *adap; + struct cpl_pass_open_req *req; + int ret; + + skb = alloc_skb(sizeof(*req), GFP_KERNEL); + if (!skb) + return -ENOMEM; + + adap = netdev2adap(dev); + req = (struct cpl_pass_open_req *)__skb_put(skb, sizeof(*req)); + INIT_TP_WR(req, 0); + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_PASS_OPEN_REQ, stid)); + req->local_port = sport; + req->peer_port = htons(0); + req->local_ip = sip; + req->peer_ip = htonl(0); + chan = rxq_to_chan(&adap->sge, queue); + req->opt0 = cpu_to_be64(TX_CHAN(chan)); + req->opt1 = cpu_to_be64(CONN_POLICY_ASK | + SYN_RSS_ENABLE | SYN_RSS_QUEUE(queue)); + ret = t4_mgmt_tx(adap, skb); + return net_xmit_eval(ret); +} +EXPORT_SYMBOL(cxgb4_create_server); + +/* cxgb4_create_server6 - create an IPv6 server + * @dev: the device + * @stid: the server TID + * @sip: local IPv6 address to bind server to + * @sport: the server's TCP port + * @queue: queue to direct messages from this server to + * + * Create an IPv6 server for the given port and address. + * Returns <0 on error and one of the %NET_XMIT_* values on success. + */ +int cxgb4_create_server6(const struct net_device *dev, unsigned int stid, + const struct in6_addr *sip, __be16 sport, + unsigned int queue) +{ + unsigned int chan; + struct sk_buff *skb; + struct adapter *adap; + struct cpl_pass_open_req6 *req; + int ret; + + skb = alloc_skb(sizeof(*req), GFP_KERNEL); + if (!skb) + return -ENOMEM; + + adap = netdev2adap(dev); + req = (struct cpl_pass_open_req6 *)__skb_put(skb, sizeof(*req)); + INIT_TP_WR(req, 0); + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_PASS_OPEN_REQ6, stid)); + req->local_port = sport; + req->peer_port = htons(0); + req->local_ip_hi = *(__be64 *)(sip->s6_addr); + req->local_ip_lo = *(__be64 *)(sip->s6_addr + 8); + req->peer_ip_hi = cpu_to_be64(0); + req->peer_ip_lo = cpu_to_be64(0); + chan = rxq_to_chan(&adap->sge, queue); + req->opt0 = cpu_to_be64(TX_CHAN(chan)); + req->opt1 = cpu_to_be64(CONN_POLICY_ASK | + SYN_RSS_ENABLE | SYN_RSS_QUEUE(queue)); + ret = t4_mgmt_tx(adap, skb); + return net_xmit_eval(ret); +} +EXPORT_SYMBOL(cxgb4_create_server6); + +int cxgb4_remove_server(const struct net_device *dev, unsigned int stid, + unsigned int queue, bool ipv6) +{ + struct sk_buff *skb; + struct adapter *adap; + struct cpl_close_listsvr_req *req; + int ret; + + adap = netdev2adap(dev); + + skb = alloc_skb(sizeof(*req), GFP_KERNEL); + if (!skb) + return -ENOMEM; + + req = (struct cpl_close_listsvr_req *)__skb_put(skb, sizeof(*req)); + INIT_TP_WR(req, 0); + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_CLOSE_LISTSRV_REQ, stid)); + req->reply_ctrl = htons(NO_REPLY(0) | (ipv6 ? LISTSVR_IPV6(1) : + LISTSVR_IPV6(0)) | QUEUENO(queue)); + ret = t4_mgmt_tx(adap, skb); + return net_xmit_eval(ret); +} +EXPORT_SYMBOL(cxgb4_remove_server); + +/** + * cxgb4_best_mtu - find the entry in the MTU table closest to an MTU + * @mtus: the HW MTU table + * @mtu: the target MTU + * @idx: index of selected entry in the MTU table + * + * Returns the index and the value in the HW MTU table that is closest to + * but does not exceed @mtu, unless @mtu is smaller than any value in the + * table, in which case that smallest available value is selected. + */ +unsigned int cxgb4_best_mtu(const unsigned short *mtus, unsigned short mtu, + unsigned int *idx) +{ + unsigned int i = 0; + + while (i < NMTUS - 1 && mtus[i + 1] <= mtu) + ++i; + if (idx) + *idx = i; + return mtus[i]; +} +EXPORT_SYMBOL(cxgb4_best_mtu); + +/** + * cxgb4_best_aligned_mtu - find best MTU, [hopefully] data size aligned + * @mtus: the HW MTU table + * @header_size: Header Size + * @data_size_max: maximum Data Segment Size + * @data_size_align: desired Data Segment Size Alignment (2^N) + * @mtu_idxp: HW MTU Table Index return value pointer (possibly NULL) + * + * Similar to cxgb4_best_mtu() but instead of searching the Hardware + * MTU Table based solely on a Maximum MTU parameter, we break that + * parameter up into a Header Size and Maximum Data Segment Size, and + * provide a desired Data Segment Size Alignment. If we find an MTU in + * the Hardware MTU Table which will result in a Data Segment Size with + * the requested alignment _and_ that MTU isn't "too far" from the + * closest MTU, then we'll return that rather than the closest MTU. + */ +unsigned int cxgb4_best_aligned_mtu(const unsigned short *mtus, + unsigned short header_size, + unsigned short data_size_max, + unsigned short data_size_align, + unsigned int *mtu_idxp) +{ + unsigned short max_mtu = header_size + data_size_max; + unsigned short data_size_align_mask = data_size_align - 1; + int mtu_idx, aligned_mtu_idx; + + /* Scan the MTU Table till we find an MTU which is larger than our + * Maximum MTU or we reach the end of the table. Along the way, + * record the last MTU found, if any, which will result in a Data + * Segment Length matching the requested alignment. + */ + for (mtu_idx = 0, aligned_mtu_idx = -1; mtu_idx < NMTUS; mtu_idx++) { + unsigned short data_size = mtus[mtu_idx] - header_size; + + /* If this MTU minus the Header Size would result in a + * Data Segment Size of the desired alignment, remember it. + */ + if ((data_size & data_size_align_mask) == 0) + aligned_mtu_idx = mtu_idx; + + /* If we're not at the end of the Hardware MTU Table and the + * next element is larger than our Maximum MTU, drop out of + * the loop. + */ + if (mtu_idx+1 < NMTUS && mtus[mtu_idx+1] > max_mtu) + break; + } + + /* If we fell out of the loop because we ran to the end of the table, + * then we just have to use the last [largest] entry. + */ + if (mtu_idx == NMTUS) + mtu_idx--; + + /* If we found an MTU which resulted in the requested Data Segment + * Length alignment and that's "not far" from the largest MTU which is + * less than or equal to the maximum MTU, then use that. + */ + if (aligned_mtu_idx >= 0 && + mtu_idx - aligned_mtu_idx <= 1) + mtu_idx = aligned_mtu_idx; + + /* If the caller has passed in an MTU Index pointer, pass the + * MTU Index back. Return the MTU value. + */ + if (mtu_idxp) + *mtu_idxp = mtu_idx; + return mtus[mtu_idx]; +} +EXPORT_SYMBOL(cxgb4_best_aligned_mtu); + +/** + * cxgb4_port_chan - get the HW channel of a port + * @dev: the net device for the port + * + * Return the HW Tx channel of the given port. + */ +unsigned int cxgb4_port_chan(const struct net_device *dev) +{ + return netdev2pinfo(dev)->tx_chan; +} +EXPORT_SYMBOL(cxgb4_port_chan); + +unsigned int cxgb4_dbfifo_count(const struct net_device *dev, int lpfifo) +{ + struct adapter *adap = netdev2adap(dev); + u32 v1, v2, lp_count, hp_count; + + v1 = t4_read_reg(adap, A_SGE_DBFIFO_STATUS); + v2 = t4_read_reg(adap, SGE_DBFIFO_STATUS2); + if (is_t4(adap->params.chip)) { + lp_count = G_LP_COUNT(v1); + hp_count = G_HP_COUNT(v1); + } else { + lp_count = G_LP_COUNT_T5(v1); + hp_count = G_HP_COUNT_T5(v2); + } + return lpfifo ? lp_count : hp_count; +} +EXPORT_SYMBOL(cxgb4_dbfifo_count); + +/** + * cxgb4_port_viid - get the VI id of a port + * @dev: the net device for the port + * + * Return the VI id of the given port. + */ +unsigned int cxgb4_port_viid(const struct net_device *dev) +{ + return netdev2pinfo(dev)->viid; +} +EXPORT_SYMBOL(cxgb4_port_viid); + +/** + * cxgb4_port_idx - get the index of a port + * @dev: the net device for the port + * + * Return the index of the given port. + */ +unsigned int cxgb4_port_idx(const struct net_device *dev) +{ + return netdev2pinfo(dev)->port_id; +} +EXPORT_SYMBOL(cxgb4_port_idx); + +void cxgb4_get_tcp_stats(struct pci_dev *pdev, struct tp_tcp_stats *v4, + struct tp_tcp_stats *v6) +{ + struct adapter *adap = pci_get_drvdata(pdev); + + spin_lock(&adap->stats_lock); + t4_tp_get_tcp_stats(adap, v4, v6); + spin_unlock(&adap->stats_lock); +} +EXPORT_SYMBOL(cxgb4_get_tcp_stats); + +void cxgb4_iscsi_init(struct net_device *dev, unsigned int tag_mask, + const unsigned int *pgsz_order) +{ + struct adapter *adap = netdev2adap(dev); + + t4_write_reg(adap, ULP_RX_ISCSI_TAGMASK, tag_mask); + t4_write_reg(adap, ULP_RX_ISCSI_PSZ, HPZ0(pgsz_order[0]) | + HPZ1(pgsz_order[1]) | HPZ2(pgsz_order[2]) | + HPZ3(pgsz_order[3])); +} +EXPORT_SYMBOL(cxgb4_iscsi_init); + +int cxgb4_flush_eq_cache(struct net_device *dev) +{ + struct adapter *adap = netdev2adap(dev); + int ret; + + ret = t4_fwaddrspace_write(adap, adap->mbox, + 0xe1000000 + A_SGE_CTXT_CMD, 0x20000000); + return ret; +} +EXPORT_SYMBOL(cxgb4_flush_eq_cache); + +static int read_eq_indices(struct adapter *adap, u16 qid, u16 *pidx, u16 *cidx) +{ + u32 addr = t4_read_reg(adap, A_SGE_DBQ_CTXT_BADDR) + 24 * qid + 8; + __be64 indices; + int ret; + + ret = t4_mem_win_read_len(adap, addr, (__be32 *)&indices, 8); + if (!ret) { + *cidx = (be64_to_cpu(indices) >> 25) & 0xffff; + *pidx = (be64_to_cpu(indices) >> 9) & 0xffff; + } + return ret; +} + +int cxgb4_sync_txq_pidx(struct net_device *dev, u16 qid, u16 pidx, + u16 size) +{ + struct adapter *adap = netdev2adap(dev); + u16 hw_pidx, hw_cidx; + int ret; + + ret = read_eq_indices(adap, qid, &hw_pidx, &hw_cidx); + if (ret) + goto out; + + if (pidx != hw_pidx) { + u16 delta; + + if (pidx >= hw_pidx) + delta = pidx - hw_pidx; + else + delta = size - hw_pidx + pidx; + wmb(); + t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL), + QID(qid) | PIDX(delta)); + } +out: + return ret; +} +EXPORT_SYMBOL(cxgb4_sync_txq_pidx); + +void cxgb4_disable_db_coalescing(struct net_device *dev) +{ + struct adapter *adap; + + adap = netdev2adap(dev); + t4_set_reg_field(adap, A_SGE_DOORBELL_CONTROL, F_NOCOALESCE, + F_NOCOALESCE); +} +EXPORT_SYMBOL(cxgb4_disable_db_coalescing); + +void cxgb4_enable_db_coalescing(struct net_device *dev) +{ + struct adapter *adap; + + adap = netdev2adap(dev); + t4_set_reg_field(adap, A_SGE_DOORBELL_CONTROL, F_NOCOALESCE, 0); +} +EXPORT_SYMBOL(cxgb4_enable_db_coalescing); + +static struct pci_driver cxgb4_driver; + +static void check_neigh_update(struct neighbour *neigh) +{ + const struct device *parent; + const struct net_device *netdev = neigh->dev; + + if (netdev->priv_flags & IFF_802_1Q_VLAN) + netdev = vlan_dev_real_dev(netdev); + parent = netdev->dev.parent; + if (parent && parent->driver == &cxgb4_driver.driver) + t4_l2t_update(dev_get_drvdata(parent), neigh); +} + +static int netevent_cb(struct notifier_block *nb, unsigned long event, + void *data) +{ + switch (event) { + case NETEVENT_NEIGH_UPDATE: + check_neigh_update(data); + break; + case NETEVENT_REDIRECT: + default: + break; + } + return 0; +} + +static bool netevent_registered; +static struct notifier_block cxgb4_netevent_nb = { + .notifier_call = netevent_cb +}; + +static void drain_db_fifo(struct adapter *adap, int usecs) +{ + u32 v1, v2, lp_count, hp_count; + + do { + v1 = t4_read_reg(adap, A_SGE_DBFIFO_STATUS); + v2 = t4_read_reg(adap, SGE_DBFIFO_STATUS2); + if (is_t4(adap->params.chip)) { + lp_count = G_LP_COUNT(v1); + hp_count = G_HP_COUNT(v1); + } else { + lp_count = G_LP_COUNT_T5(v1); + hp_count = G_HP_COUNT_T5(v2); + } + + if (lp_count == 0 && hp_count == 0) + break; + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(usecs_to_jiffies(usecs)); + } while (1); +} + +static void disable_txq_db(struct sge_txq *q) +{ + unsigned long flags; + + spin_lock_irqsave(&q->db_lock, flags); + q->db_disabled = 1; + spin_unlock_irqrestore(&q->db_lock, flags); +} + +static void enable_txq_db(struct adapter *adap, struct sge_txq *q) +{ + spin_lock_irq(&q->db_lock); + if (q->db_pidx_inc) { + /* Make sure that all writes to the TX descriptors + * are committed before we tell HW about them. + */ + wmb(); + t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL), + QID(q->cntxt_id) | PIDX(q->db_pidx_inc)); + q->db_pidx_inc = 0; + } + q->db_disabled = 0; + spin_unlock_irq(&q->db_lock); +} + +static void disable_dbs(struct adapter *adap) +{ + int i; + + for_each_ethrxq(&adap->sge, i) + disable_txq_db(&adap->sge.ethtxq[i].q); + for_each_ofldrxq(&adap->sge, i) + disable_txq_db(&adap->sge.ofldtxq[i].q); + for_each_port(adap, i) + disable_txq_db(&adap->sge.ctrlq[i].q); +} + +static void enable_dbs(struct adapter *adap) +{ + int i; + + for_each_ethrxq(&adap->sge, i) + enable_txq_db(adap, &adap->sge.ethtxq[i].q); + for_each_ofldrxq(&adap->sge, i) + enable_txq_db(adap, &adap->sge.ofldtxq[i].q); + for_each_port(adap, i) + enable_txq_db(adap, &adap->sge.ctrlq[i].q); +} + +static void notify_rdma_uld(struct adapter *adap, enum cxgb4_control cmd) +{ + if (adap->uld_handle[CXGB4_ULD_RDMA]) + ulds[CXGB4_ULD_RDMA].control(adap->uld_handle[CXGB4_ULD_RDMA], + cmd); +} + +static void process_db_full(struct work_struct *work) +{ + struct adapter *adap; + + adap = container_of(work, struct adapter, db_full_task); + + drain_db_fifo(adap, dbfifo_drain_delay); + enable_dbs(adap); + notify_rdma_uld(adap, CXGB4_CONTROL_DB_EMPTY); + t4_set_reg_field(adap, SGE_INT_ENABLE3, + DBFIFO_HP_INT | DBFIFO_LP_INT, + DBFIFO_HP_INT | DBFIFO_LP_INT); +} + +static void sync_txq_pidx(struct adapter *adap, struct sge_txq *q) +{ + u16 hw_pidx, hw_cidx; + int ret; + + spin_lock_irq(&q->db_lock); + ret = read_eq_indices(adap, (u16)q->cntxt_id, &hw_pidx, &hw_cidx); + if (ret) + goto out; + if (q->db_pidx != hw_pidx) { + u16 delta; + + if (q->db_pidx >= hw_pidx) + delta = q->db_pidx - hw_pidx; + else + delta = q->size - hw_pidx + q->db_pidx; + wmb(); + t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL), + QID(q->cntxt_id) | PIDX(delta)); + } +out: + q->db_disabled = 0; + q->db_pidx_inc = 0; + spin_unlock_irq(&q->db_lock); + if (ret) + CH_WARN(adap, "DB drop recovery failed.\n"); +} +static void recover_all_queues(struct adapter *adap) +{ + int i; + + for_each_ethrxq(&adap->sge, i) + sync_txq_pidx(adap, &adap->sge.ethtxq[i].q); + for_each_ofldrxq(&adap->sge, i) + sync_txq_pidx(adap, &adap->sge.ofldtxq[i].q); + for_each_port(adap, i) + sync_txq_pidx(adap, &adap->sge.ctrlq[i].q); +} + +static void process_db_drop(struct work_struct *work) +{ + struct adapter *adap; + + adap = container_of(work, struct adapter, db_drop_task); + + if (is_t4(adap->params.chip)) { + drain_db_fifo(adap, dbfifo_drain_delay); + notify_rdma_uld(adap, CXGB4_CONTROL_DB_DROP); + drain_db_fifo(adap, dbfifo_drain_delay); + recover_all_queues(adap); + drain_db_fifo(adap, dbfifo_drain_delay); + enable_dbs(adap); + notify_rdma_uld(adap, CXGB4_CONTROL_DB_EMPTY); + } else { + u32 dropped_db = t4_read_reg(adap, 0x010ac); + u16 qid = (dropped_db >> 15) & 0x1ffff; + u16 pidx_inc = dropped_db & 0x1fff; + unsigned int s_qpp; + unsigned short udb_density; + unsigned long qpshift; + int page; + u32 udb; + + dev_warn(adap->pdev_dev, + "Dropped DB 0x%x qid %d bar2 %d coalesce %d pidx %d\n", + dropped_db, qid, + (dropped_db >> 14) & 1, + (dropped_db >> 13) & 1, + pidx_inc); + + drain_db_fifo(adap, 1); + + s_qpp = QUEUESPERPAGEPF1 * adap->fn; + udb_density = 1 << QUEUESPERPAGEPF0_GET(t4_read_reg(adap, + SGE_EGRESS_QUEUES_PER_PAGE_PF) >> s_qpp); + qpshift = PAGE_SHIFT - ilog2(udb_density); + udb = qid << qpshift; + udb &= PAGE_MASK; + page = udb / PAGE_SIZE; + udb += (qid - (page * udb_density)) * 128; + + writel(PIDX(pidx_inc), adap->bar2 + udb + 8); + + /* Re-enable BAR2 WC */ + t4_set_reg_field(adap, 0x10b0, 1<<15, 1<<15); + } + + t4_set_reg_field(adap, A_SGE_DOORBELL_CONTROL, F_DROPPED_DB, 0); +} + +void t4_db_full(struct adapter *adap) +{ + if (is_t4(adap->params.chip)) { + disable_dbs(adap); + notify_rdma_uld(adap, CXGB4_CONTROL_DB_FULL); + t4_set_reg_field(adap, SGE_INT_ENABLE3, + DBFIFO_HP_INT | DBFIFO_LP_INT, 0); + queue_work(workq, &adap->db_full_task); + } +} + +void t4_db_dropped(struct adapter *adap) +{ + if (is_t4(adap->params.chip)) { + disable_dbs(adap); + notify_rdma_uld(adap, CXGB4_CONTROL_DB_FULL); + } + queue_work(workq, &adap->db_drop_task); +} + +static void uld_attach(struct adapter *adap, unsigned int uld) +{ + void *handle; + struct cxgb4_lld_info lli; + unsigned short i; + + lli.pdev = adap->pdev; + lli.l2t = adap->l2t; + lli.tids = &adap->tids; + lli.ports = adap->port; + lli.vr = &adap->vres; + lli.mtus = adap->params.mtus; + if (uld == CXGB4_ULD_RDMA) { + lli.rxq_ids = adap->sge.rdma_rxq; + lli.ciq_ids = adap->sge.rdma_ciq; + lli.nrxq = adap->sge.rdmaqs; + lli.nciq = adap->sge.rdmaciqs; + } else if (uld == CXGB4_ULD_ISCSI) { + lli.rxq_ids = adap->sge.ofld_rxq; + lli.nrxq = adap->sge.ofldqsets; + } + lli.ntxq = adap->sge.ofldqsets; + lli.nchan = adap->params.nports; + lli.nports = adap->params.nports; + lli.wr_cred = adap->params.ofldq_wr_cred; + lli.adapter_type = adap->params.chip; + lli.iscsi_iolen = MAXRXDATA_GET(t4_read_reg(adap, TP_PARA_REG2)); + lli.udb_density = 1 << QUEUESPERPAGEPF0_GET( + t4_read_reg(adap, SGE_EGRESS_QUEUES_PER_PAGE_PF) >> + (adap->fn * 4)); + lli.ucq_density = 1 << QUEUESPERPAGEPF0_GET( + t4_read_reg(adap, SGE_INGRESS_QUEUES_PER_PAGE_PF) >> + (adap->fn * 4)); + lli.filt_mode = adap->params.tp.vlan_pri_map; + /* MODQ_REQ_MAP sets queues 0-3 to chan 0-3 */ + for (i = 0; i < NCHAN; i++) + lli.tx_modq[i] = i; + lli.gts_reg = adap->regs + MYPF_REG(SGE_PF_GTS); + lli.db_reg = adap->regs + MYPF_REG(SGE_PF_KDOORBELL); + lli.fw_vers = adap->params.fw_vers; + lli.dbfifo_int_thresh = dbfifo_int_thresh; + lli.sge_pktshift = adap->sge.pktshift; + lli.enable_fw_ofld_conn = adap->flags & FW_OFLD_CONN; + lli.ulptx_memwrite_dsgl = adap->params.ulptx_memwrite_dsgl; + + handle = ulds[uld].add(&lli); + if (IS_ERR(handle)) { + dev_warn(adap->pdev_dev, + "could not attach to the %s driver, error %ld\n", + uld_str[uld], PTR_ERR(handle)); + return; + } + + adap->uld_handle[uld] = handle; + + if (!netevent_registered) { + register_netevent_notifier(&cxgb4_netevent_nb); + netevent_registered = true; + } + + if (adap->flags & FULL_INIT_DONE) + ulds[uld].state_change(handle, CXGB4_STATE_UP); +} + +static void attach_ulds(struct adapter *adap) +{ + unsigned int i; + + spin_lock(&adap_rcu_lock); + list_add_tail_rcu(&adap->rcu_node, &adap_rcu_list); + spin_unlock(&adap_rcu_lock); + + mutex_lock(&uld_mutex); + list_add_tail(&adap->list_node, &adapter_list); + for (i = 0; i < CXGB4_ULD_MAX; i++) + if (ulds[i].add) + uld_attach(adap, i); + mutex_unlock(&uld_mutex); +} + +static void detach_ulds(struct adapter *adap) +{ + unsigned int i; + + mutex_lock(&uld_mutex); + list_del(&adap->list_node); + for (i = 0; i < CXGB4_ULD_MAX; i++) + if (adap->uld_handle[i]) { + ulds[i].state_change(adap->uld_handle[i], + CXGB4_STATE_DETACH); + adap->uld_handle[i] = NULL; + } + if (netevent_registered && list_empty(&adapter_list)) { + unregister_netevent_notifier(&cxgb4_netevent_nb); + netevent_registered = false; + } + mutex_unlock(&uld_mutex); + + spin_lock(&adap_rcu_lock); + list_del_rcu(&adap->rcu_node); + spin_unlock(&adap_rcu_lock); +} + +static void notify_ulds(struct adapter *adap, enum cxgb4_state new_state) +{ + unsigned int i; + + mutex_lock(&uld_mutex); + for (i = 0; i < CXGB4_ULD_MAX; i++) + if (adap->uld_handle[i]) + ulds[i].state_change(adap->uld_handle[i], new_state); + mutex_unlock(&uld_mutex); +} + +/** + * cxgb4_register_uld - register an upper-layer driver + * @type: the ULD type + * @p: the ULD methods + * + * Registers an upper-layer driver with this driver and notifies the ULD + * about any presently available devices that support its type. Returns + * %-EBUSY if a ULD of the same type is already registered. + */ +int cxgb4_register_uld(enum cxgb4_uld type, const struct cxgb4_uld_info *p) +{ + int ret = 0; + struct adapter *adap; + + if (type >= CXGB4_ULD_MAX) + return -EINVAL; + mutex_lock(&uld_mutex); + if (ulds[type].add) { + ret = -EBUSY; + goto out; + } + ulds[type] = *p; + list_for_each_entry(adap, &adapter_list, list_node) + uld_attach(adap, type); +out: mutex_unlock(&uld_mutex); + return ret; +} +EXPORT_SYMBOL(cxgb4_register_uld); + +/** + * cxgb4_unregister_uld - unregister an upper-layer driver + * @type: the ULD type + * + * Unregisters an existing upper-layer driver. + */ +int cxgb4_unregister_uld(enum cxgb4_uld type) +{ + struct adapter *adap; + + if (type >= CXGB4_ULD_MAX) + return -EINVAL; + mutex_lock(&uld_mutex); + list_for_each_entry(adap, &adapter_list, list_node) + adap->uld_handle[type] = NULL; + ulds[type].add = NULL; + mutex_unlock(&uld_mutex); + return 0; +} +EXPORT_SYMBOL(cxgb4_unregister_uld); + +/* Check if netdev on which event is occured belongs to us or not. Return + * success (true) if it belongs otherwise failure (false). + * Called with rcu_read_lock() held. + */ +static bool cxgb4_netdev(const struct net_device *netdev) +{ + struct adapter *adap; + int i; + + list_for_each_entry_rcu(adap, &adap_rcu_list, rcu_node) + for (i = 0; i < MAX_NPORTS; i++) + if (adap->port[i] == netdev) + return true; + return false; +} + +static int clip_add(struct net_device *event_dev, struct inet6_ifaddr *ifa, + unsigned long event) +{ + int ret = NOTIFY_DONE; + + rcu_read_lock(); + if (cxgb4_netdev(event_dev)) { + switch (event) { + case NETDEV_UP: + ret = cxgb4_clip_get(event_dev, + (const struct in6_addr *)ifa->addr.s6_addr); + if (ret < 0) { + rcu_read_unlock(); + return ret; + } + ret = NOTIFY_OK; + break; + case NETDEV_DOWN: + cxgb4_clip_release(event_dev, + (const struct in6_addr *)ifa->addr.s6_addr); + ret = NOTIFY_OK; + break; + default: + break; + } + } + rcu_read_unlock(); + return ret; +} + +static int cxgb4_inet6addr_handler(struct notifier_block *this, + unsigned long event, void *data) +{ + struct inet6_ifaddr *ifa = data; + struct net_device *event_dev; + int ret = NOTIFY_DONE; + struct bonding *bond = netdev_priv(ifa->idev->dev); + struct list_head *iter; + struct slave *slave; + struct pci_dev *first_pdev = NULL; + + if (ifa->idev->dev->priv_flags & IFF_802_1Q_VLAN) { + event_dev = vlan_dev_real_dev(ifa->idev->dev); + ret = clip_add(event_dev, ifa, event); + } else if (ifa->idev->dev->flags & IFF_MASTER) { + /* It is possible that two different adapters are bonded in one + * bond. We need to find such different adapters and add clip + * in all of them only once. + */ + read_lock(&bond->lock); + bond_for_each_slave(bond, slave, iter) { + if (!first_pdev) { + ret = clip_add(slave->dev, ifa, event); + /* If clip_add is success then only initialize + * first_pdev since it means it is our device + */ + if (ret == NOTIFY_OK) + first_pdev = to_pci_dev( + slave->dev->dev.parent); + } else if (first_pdev != + to_pci_dev(slave->dev->dev.parent)) + ret = clip_add(slave->dev, ifa, event); + } + read_unlock(&bond->lock); + } else + ret = clip_add(ifa->idev->dev, ifa, event); + + return ret; +} + +static struct notifier_block cxgb4_inet6addr_notifier = { + .notifier_call = cxgb4_inet6addr_handler +}; + +/* Retrieves IPv6 addresses from a root device (bond, vlan) associated with + * a physical device. + * The physical device reference is needed to send the actul CLIP command. + */ +static int update_dev_clip(struct net_device *root_dev, struct net_device *dev) +{ + struct inet6_dev *idev = NULL; + struct inet6_ifaddr *ifa; + int ret = 0; + + idev = __in6_dev_get(root_dev); + if (!idev) + return ret; + + read_lock_bh(&idev->lock); + list_for_each_entry(ifa, &idev->addr_list, if_list) { + ret = cxgb4_clip_get(dev, + (const struct in6_addr *)ifa->addr.s6_addr); + if (ret < 0) + break; + } + read_unlock_bh(&idev->lock); + + return ret; +} + +static int update_root_dev_clip(struct net_device *dev) +{ + struct net_device *root_dev = NULL; + int i, ret = 0; + + /* First populate the real net device's IPv6 addresses */ + ret = update_dev_clip(dev, dev); + if (ret) + return ret; + + /* Parse all bond and vlan devices layered on top of the physical dev */ + for (i = 0; i < VLAN_N_VID; i++) { + root_dev = __vlan_find_dev_deep_rcu(dev, htons(ETH_P_8021Q), i); + if (!root_dev) + continue; + + ret = update_dev_clip(root_dev, dev); + if (ret) + break; + } + return ret; +} + +static void update_clip(const struct adapter *adap) +{ + int i; + struct net_device *dev; + int ret; + + rcu_read_lock(); + + for (i = 0; i < MAX_NPORTS; i++) { + dev = adap->port[i]; + ret = 0; + + if (dev) + ret = update_root_dev_clip(dev); + + if (ret < 0) + break; + } + rcu_read_unlock(); +} + +/** + * cxgb_up - enable the adapter + * @adap: adapter being enabled + * + * Called when the first port is enabled, this function performs the + * actions necessary to make an adapter operational, such as completing + * the initialization of HW modules, and enabling interrupts. + * + * Must be called with the rtnl lock held. + */ +static int cxgb_up(struct adapter *adap) +{ + int err; + + err = setup_sge_queues(adap); + if (err) + goto out; + err = setup_rss(adap); + if (err) + goto freeq; + + if (adap->flags & USING_MSIX) { + name_msix_vecs(adap); + err = request_irq(adap->msix_info[0].vec, t4_nondata_intr, 0, + adap->msix_info[0].desc, adap); + if (err) + goto irq_err; + + err = request_msix_queue_irqs(adap); + if (err) { + free_irq(adap->msix_info[0].vec, adap); + goto irq_err; + } + } else { + err = request_irq(adap->pdev->irq, t4_intr_handler(adap), + (adap->flags & USING_MSI) ? 0 : IRQF_SHARED, + adap->port[0]->name, adap); + if (err) + goto irq_err; + } + enable_rx(adap); + t4_sge_start(adap); + t4_intr_enable(adap); + adap->flags |= FULL_INIT_DONE; + notify_ulds(adap, CXGB4_STATE_UP); + update_clip(adap); + out: + return err; + irq_err: + dev_err(adap->pdev_dev, "request_irq failed, err %d\n", err); + freeq: + t4_free_sge_resources(adap); + goto out; +} + +static void cxgb_down(struct adapter *adapter) +{ + t4_intr_disable(adapter); + cancel_work_sync(&adapter->tid_release_task); + cancel_work_sync(&adapter->db_full_task); + cancel_work_sync(&adapter->db_drop_task); + adapter->tid_release_task_busy = false; + adapter->tid_release_head = NULL; + + if (adapter->flags & USING_MSIX) { + free_msix_queue_irqs(adapter); + free_irq(adapter->msix_info[0].vec, adapter); + } else + free_irq(adapter->pdev->irq, adapter); + quiesce_rx(adapter); + t4_sge_stop(adapter); + t4_free_sge_resources(adapter); + adapter->flags &= ~FULL_INIT_DONE; +} + +/* + * net_device operations + */ +static int cxgb_open(struct net_device *dev) +{ + int err; + struct port_info *pi = netdev_priv(dev); + struct adapter *adapter = pi->adapter; + + netif_carrier_off(dev); + + if (!(adapter->flags & FULL_INIT_DONE)) { + err = cxgb_up(adapter); + if (err < 0) + return err; + } + + err = link_start(dev); + if (!err) + netif_tx_start_all_queues(dev); + return err; +} + +static int cxgb_close(struct net_device *dev) +{ + struct port_info *pi = netdev_priv(dev); + struct adapter *adapter = pi->adapter; + + netif_tx_stop_all_queues(dev); + netif_carrier_off(dev); + return t4_enable_vi(adapter, adapter->fn, pi->viid, false, false); +} + +/* Return an error number if the indicated filter isn't writable ... + */ +static int writable_filter(struct filter_entry *f) +{ + if (f->locked) + return -EPERM; + if (f->pending) + return -EBUSY; + + return 0; +} + +/* Delete the filter at the specified index (if valid). The checks for all + * the common problems with doing this like the filter being locked, currently + * pending in another operation, etc. + */ +static int delete_filter(struct adapter *adapter, unsigned int fidx) +{ + struct filter_entry *f; + int ret; + + if (fidx >= adapter->tids.nftids + adapter->tids.nsftids) + return -EINVAL; + + f = &adapter->tids.ftid_tab[fidx]; + ret = writable_filter(f); + if (ret) + return ret; + if (f->valid) + return del_filter_wr(adapter, fidx); + + return 0; +} + +int cxgb4_create_server_filter(const struct net_device *dev, unsigned int stid, + __be32 sip, __be16 sport, __be16 vlan, + unsigned int queue, unsigned char port, unsigned char mask) +{ + int ret; + struct filter_entry *f; + struct adapter *adap; + int i; + u8 *val; + + adap = netdev2adap(dev); + + /* Adjust stid to correct filter index */ + stid -= adap->tids.sftid_base; + stid += adap->tids.nftids; + + /* Check to make sure the filter requested is writable ... + */ + f = &adap->tids.ftid_tab[stid]; + ret = writable_filter(f); + if (ret) + return ret; + + /* Clear out any old resources being used by the filter before + * we start constructing the new filter. + */ + if (f->valid) + clear_filter(adap, f); + + /* Clear out filter specifications */ + memset(&f->fs, 0, sizeof(struct ch_filter_specification)); + f->fs.val.lport = cpu_to_be16(sport); + f->fs.mask.lport = ~0; + val = (u8 *)&sip; + if ((val[0] | val[1] | val[2] | val[3]) != 0) { + for (i = 0; i < 4; i++) { + f->fs.val.lip[i] = val[i]; + f->fs.mask.lip[i] = ~0; + } + if (adap->params.tp.vlan_pri_map & F_PORT) { + f->fs.val.iport = port; + f->fs.mask.iport = mask; + } + } + + if (adap->params.tp.vlan_pri_map & F_PROTOCOL) { + f->fs.val.proto = IPPROTO_TCP; + f->fs.mask.proto = ~0; + } + + f->fs.dirsteer = 1; + f->fs.iq = queue; + /* Mark filter as locked */ + f->locked = 1; + f->fs.rpttid = 1; + + ret = set_filter_wr(adap, stid); + if (ret) { + clear_filter(adap, f); + return ret; + } + + return 0; +} +EXPORT_SYMBOL(cxgb4_create_server_filter); + +int cxgb4_remove_server_filter(const struct net_device *dev, unsigned int stid, + unsigned int queue, bool ipv6) +{ + int ret; + struct filter_entry *f; + struct adapter *adap; + + adap = netdev2adap(dev); + + /* Adjust stid to correct filter index */ + stid -= adap->tids.sftid_base; + stid += adap->tids.nftids; + + f = &adap->tids.ftid_tab[stid]; + /* Unlock the filter */ + f->locked = 0; + + ret = delete_filter(adap, stid); + if (ret) + return ret; + + return 0; +} +EXPORT_SYMBOL(cxgb4_remove_server_filter); + +static struct rtnl_link_stats64 *cxgb_get_stats(struct net_device *dev, + struct rtnl_link_stats64 *ns) +{ + struct port_stats stats; + struct port_info *p = netdev_priv(dev); + struct adapter *adapter = p->adapter; + + /* Block retrieving statistics during EEH error + * recovery. Otherwise, the recovery might fail + * and the PCI device will be removed permanently + */ + spin_lock(&adapter->stats_lock); + if (!netif_device_present(dev)) { + spin_unlock(&adapter->stats_lock); + return ns; + } + t4_get_port_stats(adapter, p->tx_chan, &stats); + spin_unlock(&adapter->stats_lock); + + ns->tx_bytes = stats.tx_octets; + ns->tx_packets = stats.tx_frames; + ns->rx_bytes = stats.rx_octets; + ns->rx_packets = stats.rx_frames; + ns->multicast = stats.rx_mcast_frames; + + /* detailed rx_errors */ + ns->rx_length_errors = stats.rx_jabber + stats.rx_too_long + + stats.rx_runt; + ns->rx_over_errors = 0; + ns->rx_crc_errors = stats.rx_fcs_err; + ns->rx_frame_errors = stats.rx_symbol_err; + ns->rx_fifo_errors = stats.rx_ovflow0 + stats.rx_ovflow1 + + stats.rx_ovflow2 + stats.rx_ovflow3 + + stats.rx_trunc0 + stats.rx_trunc1 + + stats.rx_trunc2 + stats.rx_trunc3; + ns->rx_missed_errors = 0; + + /* detailed tx_errors */ + ns->tx_aborted_errors = 0; + ns->tx_carrier_errors = 0; + ns->tx_fifo_errors = 0; + ns->tx_heartbeat_errors = 0; + ns->tx_window_errors = 0; + + ns->tx_errors = stats.tx_error_frames; + ns->rx_errors = stats.rx_symbol_err + stats.rx_fcs_err + + ns->rx_length_errors + stats.rx_len_err + ns->rx_fifo_errors; + return ns; +} + +static int cxgb_ioctl(struct net_device *dev, struct ifreq *req, int cmd) +{ + unsigned int mbox; + int ret = 0, prtad, devad; + struct port_info *pi = netdev_priv(dev); + struct mii_ioctl_data *data = (struct mii_ioctl_data *)&req->ifr_data; + + switch (cmd) { + case SIOCGMIIPHY: + if (pi->mdio_addr < 0) + return -EOPNOTSUPP; + data->phy_id = pi->mdio_addr; + break; + case SIOCGMIIREG: + case SIOCSMIIREG: + if (mdio_phy_id_is_c45(data->phy_id)) { + prtad = mdio_phy_id_prtad(data->phy_id); + devad = mdio_phy_id_devad(data->phy_id); + } else if (data->phy_id < 32) { + prtad = data->phy_id; + devad = 0; + data->reg_num &= 0x1f; + } else + return -EINVAL; + + mbox = pi->adapter->fn; + if (cmd == SIOCGMIIREG) + ret = t4_mdio_rd(pi->adapter, mbox, prtad, devad, + data->reg_num, &data->val_out); + else + ret = t4_mdio_wr(pi->adapter, mbox, prtad, devad, + data->reg_num, data->val_in); + break; + default: + return -EOPNOTSUPP; + } + return ret; +} + +static void cxgb_set_rxmode(struct net_device *dev) +{ + /* unfortunately we can't return errors to the stack */ + set_rxmode(dev, -1, false); +} + +static int cxgb_change_mtu(struct net_device *dev, int new_mtu) +{ + int ret; + struct port_info *pi = netdev_priv(dev); + + if (new_mtu < 81 || new_mtu > MAX_MTU) /* accommodate SACK */ + return -EINVAL; + ret = t4_set_rxmode(pi->adapter, pi->adapter->fn, pi->viid, new_mtu, -1, + -1, -1, -1, true); + if (!ret) + dev->mtu = new_mtu; + return ret; +} + +static int cxgb_set_mac_addr(struct net_device *dev, void *p) +{ + int ret; + struct sockaddr *addr = p; + struct port_info *pi = netdev_priv(dev); + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + ret = t4_change_mac(pi->adapter, pi->adapter->fn, pi->viid, + pi->xact_addr_filt, addr->sa_data, true, true); + if (ret < 0) + return ret; + + memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); + pi->xact_addr_filt = ret; + return 0; +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void cxgb_netpoll(struct net_device *dev) +{ + struct port_info *pi = netdev_priv(dev); + struct adapter *adap = pi->adapter; + + if (adap->flags & USING_MSIX) { + int i; + struct sge_eth_rxq *rx = &adap->sge.ethrxq[pi->first_qset]; + + for (i = pi->nqsets; i; i--, rx++) + t4_sge_intr_msix(0, &rx->rspq); + } else + t4_intr_handler(adap)(0, adap); +} +#endif + +static const struct net_device_ops cxgb4_netdev_ops = { + .ndo_open = cxgb_open, + .ndo_stop = cxgb_close, + .ndo_start_xmit = t4_eth_xmit, + .ndo_get_stats64 = cxgb_get_stats, + .ndo_set_rx_mode = cxgb_set_rxmode, + .ndo_set_mac_address = cxgb_set_mac_addr, + .ndo_set_features = cxgb_set_features, + .ndo_validate_addr = eth_validate_addr, + .ndo_do_ioctl = cxgb_ioctl, + .ndo_change_mtu = cxgb_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = cxgb_netpoll, +#endif +}; + +void t4_fatal_err(struct adapter *adap) +{ + t4_set_reg_field(adap, SGE_CONTROL, GLOBALENABLE, 0); + t4_intr_disable(adap); + dev_alert(adap->pdev_dev, "encountered fatal error, adapter stopped\n"); +} + +static void setup_memwin(struct adapter *adap) +{ + u32 bar0, mem_win0_base, mem_win1_base, mem_win2_base; + + bar0 = pci_resource_start(adap->pdev, 0); /* truncation intentional */ + if (is_t4(adap->params.chip)) { + mem_win0_base = bar0 + MEMWIN0_BASE; + mem_win1_base = bar0 + MEMWIN1_BASE; + mem_win2_base = bar0 + MEMWIN2_BASE; + } else { + /* For T5, only relative offset inside the PCIe BAR is passed */ + mem_win0_base = MEMWIN0_BASE; + mem_win1_base = MEMWIN1_BASE_T5; + mem_win2_base = MEMWIN2_BASE_T5; + } + t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 0), + mem_win0_base | BIR(0) | + WINDOW(ilog2(MEMWIN0_APERTURE) - 10)); + t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 1), + mem_win1_base | BIR(0) | + WINDOW(ilog2(MEMWIN1_APERTURE) - 10)); + t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 2), + mem_win2_base | BIR(0) | + WINDOW(ilog2(MEMWIN2_APERTURE) - 10)); +} + +static void setup_memwin_rdma(struct adapter *adap) +{ + if (adap->vres.ocq.size) { + unsigned int start, sz_kb; + + start = pci_resource_start(adap->pdev, 2) + + OCQ_WIN_OFFSET(adap->pdev, &adap->vres); + sz_kb = roundup_pow_of_two(adap->vres.ocq.size) >> 10; + t4_write_reg(adap, + PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 3), + start | BIR(1) | WINDOW(ilog2(sz_kb))); + t4_write_reg(adap, + PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_OFFSET, 3), + adap->vres.ocq.start); + t4_read_reg(adap, + PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_OFFSET, 3)); + } +} + +static int adap_init1(struct adapter *adap, struct fw_caps_config_cmd *c) +{ + u32 v; + int ret; + + /* get device capabilities */ + memset(c, 0, sizeof(*c)); + c->op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | + FW_CMD_REQUEST | FW_CMD_READ); + c->cfvalid_to_len16 = htonl(FW_LEN16(*c)); + ret = t4_wr_mbox(adap, adap->fn, c, sizeof(*c), c); + if (ret < 0) + return ret; + + /* select capabilities we'll be using */ + if (c->niccaps & htons(FW_CAPS_CONFIG_NIC_VM)) { + if (!vf_acls) + c->niccaps ^= htons(FW_CAPS_CONFIG_NIC_VM); + else + c->niccaps = htons(FW_CAPS_CONFIG_NIC_VM); + } else if (vf_acls) { + dev_err(adap->pdev_dev, "virtualization ACLs not supported"); + return ret; + } + c->op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | + FW_CMD_REQUEST | FW_CMD_WRITE); + ret = t4_wr_mbox(adap, adap->fn, c, sizeof(*c), NULL); + if (ret < 0) + return ret; + + ret = t4_config_glbl_rss(adap, adap->fn, + FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL, + FW_RSS_GLB_CONFIG_CMD_TNLMAPEN | + FW_RSS_GLB_CONFIG_CMD_TNLALLLKP); + if (ret < 0) + return ret; + + ret = t4_cfg_pfvf(adap, adap->fn, adap->fn, 0, MAX_EGRQ, 64, MAX_INGQ, + 0, 0, 4, 0xf, 0xf, 16, FW_CMD_CAP_PF, FW_CMD_CAP_PF); + if (ret < 0) + return ret; + + t4_sge_init(adap); + + /* tweak some settings */ + t4_write_reg(adap, TP_SHIFT_CNT, 0x64f8849); + t4_write_reg(adap, ULP_RX_TDDP_PSZ, HPZ0(PAGE_SHIFT - 12)); + t4_write_reg(adap, TP_PIO_ADDR, TP_INGRESS_CONFIG); + v = t4_read_reg(adap, TP_PIO_DATA); + t4_write_reg(adap, TP_PIO_DATA, v & ~CSUM_HAS_PSEUDO_HDR); + + /* first 4 Tx modulation queues point to consecutive Tx channels */ + adap->params.tp.tx_modq_map = 0xE4; + t4_write_reg(adap, A_TP_TX_MOD_QUEUE_REQ_MAP, + V_TX_MOD_QUEUE_REQ_MAP(adap->params.tp.tx_modq_map)); + + /* associate each Tx modulation queue with consecutive Tx channels */ + v = 0x84218421; + t4_write_indirect(adap, TP_PIO_ADDR, TP_PIO_DATA, + &v, 1, A_TP_TX_SCHED_HDR); + t4_write_indirect(adap, TP_PIO_ADDR, TP_PIO_DATA, + &v, 1, A_TP_TX_SCHED_FIFO); + t4_write_indirect(adap, TP_PIO_ADDR, TP_PIO_DATA, + &v, 1, A_TP_TX_SCHED_PCMD); + +#define T4_TX_MODQ_10G_WEIGHT_DEFAULT 16 /* in KB units */ + if (is_offload(adap)) { + t4_write_reg(adap, A_TP_TX_MOD_QUEUE_WEIGHT0, + V_TX_MODQ_WEIGHT0(T4_TX_MODQ_10G_WEIGHT_DEFAULT) | + V_TX_MODQ_WEIGHT1(T4_TX_MODQ_10G_WEIGHT_DEFAULT) | + V_TX_MODQ_WEIGHT2(T4_TX_MODQ_10G_WEIGHT_DEFAULT) | + V_TX_MODQ_WEIGHT3(T4_TX_MODQ_10G_WEIGHT_DEFAULT)); + t4_write_reg(adap, A_TP_TX_MOD_CHANNEL_WEIGHT, + V_TX_MODQ_WEIGHT0(T4_TX_MODQ_10G_WEIGHT_DEFAULT) | + V_TX_MODQ_WEIGHT1(T4_TX_MODQ_10G_WEIGHT_DEFAULT) | + V_TX_MODQ_WEIGHT2(T4_TX_MODQ_10G_WEIGHT_DEFAULT) | + V_TX_MODQ_WEIGHT3(T4_TX_MODQ_10G_WEIGHT_DEFAULT)); + } + + /* get basic stuff going */ + return t4_early_init(adap, adap->fn); +} + +/* + * Max # of ATIDs. The absolute HW max is 16K but we keep it lower. + */ +#define MAX_ATIDS 8192U + +/* + * Phase 0 of initialization: contact FW, obtain config, perform basic init. + * + * If the firmware we're dealing with has Configuration File support, then + * we use that to perform all configuration + */ + +/* + * Tweak configuration based on module parameters, etc. Most of these have + * defaults assigned to them by Firmware Configuration Files (if we're using + * them) but need to be explicitly set if we're using hard-coded + * initialization. But even in the case of using Firmware Configuration + * Files, we'd like to expose the ability to change these via module + * parameters so these are essentially common tweaks/settings for + * Configuration Files and hard-coded initialization ... + */ +static int adap_init0_tweaks(struct adapter *adapter) +{ + /* + * Fix up various Host-Dependent Parameters like Page Size, Cache + * Line Size, etc. The firmware default is for a 4KB Page Size and + * 64B Cache Line Size ... + */ + t4_fixup_host_params(adapter, PAGE_SIZE, L1_CACHE_BYTES); + + /* + * Process module parameters which affect early initialization. + */ + if (rx_dma_offset != 2 && rx_dma_offset != 0) { + dev_err(&adapter->pdev->dev, + "Ignoring illegal rx_dma_offset=%d, using 2\n", + rx_dma_offset); + rx_dma_offset = 2; + } + t4_set_reg_field(adapter, SGE_CONTROL, + PKTSHIFT_MASK, + PKTSHIFT(rx_dma_offset)); + + /* + * Don't include the "IP Pseudo Header" in CPL_RX_PKT checksums: Linux + * adds the pseudo header itself. + */ + t4_tp_wr_bits_indirect(adapter, TP_INGRESS_CONFIG, + CSUM_HAS_PSEUDO_HDR, 0); + + return 0; +} + +/* + * Attempt to initialize the adapter via a Firmware Configuration File. + */ +static int adap_init0_config(struct adapter *adapter, int reset) +{ + struct fw_caps_config_cmd caps_cmd; + const struct firmware *cf; + unsigned long mtype = 0, maddr = 0; + u32 finiver, finicsum, cfcsum; + int ret; + int config_issued = 0; + char *fw_config_file, fw_config_file_path[256]; + char *config_name = NULL; + + /* + * Reset device if necessary. + */ + if (reset) { + ret = t4_fw_reset(adapter, adapter->mbox, + PIORSTMODE | PIORST); + if (ret < 0) + goto bye; + } + + /* + * If we have a T4 configuration file under /lib/firmware/cxgb4/, + * then use that. Otherwise, use the configuration file stored + * in the adapter flash ... + */ + switch (CHELSIO_CHIP_VERSION(adapter->params.chip)) { + case CHELSIO_T4: + fw_config_file = FW4_CFNAME; + break; + case CHELSIO_T5: + fw_config_file = FW5_CFNAME; + break; + default: + dev_err(adapter->pdev_dev, "Device %d is not supported\n", + adapter->pdev->device); + ret = -EINVAL; + goto bye; + } + + ret = request_firmware(&cf, fw_config_file, adapter->pdev_dev); + if (ret < 0) { + config_name = "On FLASH"; + mtype = FW_MEMTYPE_CF_FLASH; + maddr = t4_flash_cfg_addr(adapter); + } else { + u32 params[7], val[7]; + + sprintf(fw_config_file_path, + "/lib/firmware/%s", fw_config_file); + config_name = fw_config_file_path; + + if (cf->size >= FLASH_CFG_MAX_SIZE) + ret = -ENOMEM; + else { + params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | + FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CF)); + ret = t4_query_params(adapter, adapter->mbox, + adapter->fn, 0, 1, params, val); + if (ret == 0) { + /* + * For t4_memory_write() below addresses and + * sizes have to be in terms of multiples of 4 + * bytes. So, if the Configuration File isn't + * a multiple of 4 bytes in length we'll have + * to write that out separately since we can't + * guarantee that the bytes following the + * residual byte in the buffer returned by + * request_firmware() are zeroed out ... + */ + size_t resid = cf->size & 0x3; + size_t size = cf->size & ~0x3; + __be32 *data = (__be32 *)cf->data; + + mtype = FW_PARAMS_PARAM_Y_GET(val[0]); + maddr = FW_PARAMS_PARAM_Z_GET(val[0]) << 16; + + ret = t4_memory_write(adapter, mtype, maddr, + size, data); + if (ret == 0 && resid != 0) { + union { + __be32 word; + char buf[4]; + } last; + int i; + + last.word = data[size >> 2]; + for (i = resid; i < 4; i++) + last.buf[i] = 0; + ret = t4_memory_write(adapter, mtype, + maddr + size, + 4, &last.word); + } + } + } + + release_firmware(cf); + if (ret) + goto bye; + } + + /* + * Issue a Capability Configuration command to the firmware to get it + * to parse the Configuration File. We don't use t4_fw_config_file() + * because we want the ability to modify various features after we've + * processed the configuration file ... + */ + memset(&caps_cmd, 0, sizeof(caps_cmd)); + caps_cmd.op_to_write = + htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | + FW_CMD_REQUEST | + FW_CMD_READ); + caps_cmd.cfvalid_to_len16 = + htonl(FW_CAPS_CONFIG_CMD_CFVALID | + FW_CAPS_CONFIG_CMD_MEMTYPE_CF(mtype) | + FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(maddr >> 16) | + FW_LEN16(caps_cmd)); + ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), + &caps_cmd); + + /* If the CAPS_CONFIG failed with an ENOENT (for a Firmware + * Configuration File in FLASH), our last gasp effort is to use the + * Firmware Configuration File which is embedded in the firmware. A + * very few early versions of the firmware didn't have one embedded + * but we can ignore those. + */ + if (ret == -ENOENT) { + memset(&caps_cmd, 0, sizeof(caps_cmd)); + caps_cmd.op_to_write = + htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | + FW_CMD_REQUEST | + FW_CMD_READ); + caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd)); + ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, + sizeof(caps_cmd), &caps_cmd); + config_name = "Firmware Default"; + } + + config_issued = 1; + if (ret < 0) + goto bye; + + finiver = ntohl(caps_cmd.finiver); + finicsum = ntohl(caps_cmd.finicsum); + cfcsum = ntohl(caps_cmd.cfcsum); + if (finicsum != cfcsum) + dev_warn(adapter->pdev_dev, "Configuration File checksum "\ + "mismatch: [fini] csum=%#x, computed csum=%#x\n", + finicsum, cfcsum); + + /* + * And now tell the firmware to use the configuration we just loaded. + */ + caps_cmd.op_to_write = + htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | + FW_CMD_REQUEST | + FW_CMD_WRITE); + caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd)); + ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), + NULL); + if (ret < 0) + goto bye; + + /* + * Tweak configuration based on system architecture, module + * parameters, etc. + */ + ret = adap_init0_tweaks(adapter); + if (ret < 0) + goto bye; + + /* + * And finally tell the firmware to initialize itself using the + * parameters from the Configuration File. + */ + ret = t4_fw_initialize(adapter, adapter->mbox); + if (ret < 0) + goto bye; + + /* + * Return successfully and note that we're operating with parameters + * not supplied by the driver, rather than from hard-wired + * initialization constants burried in the driver. + */ + adapter->flags |= USING_SOFT_PARAMS; + dev_info(adapter->pdev_dev, "Successfully configured using Firmware "\ + "Configuration File \"%s\", version %#x, computed checksum %#x\n", + config_name, finiver, cfcsum); + return 0; + + /* + * Something bad happened. Return the error ... (If the "error" + * is that there's no Configuration File on the adapter we don't + * want to issue a warning since this is fairly common.) + */ +bye: + if (config_issued && ret != -ENOENT) + dev_warn(adapter->pdev_dev, "\"%s\" configuration file error %d\n", + config_name, -ret); + return ret; +} + +/* + * Attempt to initialize the adapter via hard-coded, driver supplied + * parameters ... + */ +static int adap_init0_no_config(struct adapter *adapter, int reset) +{ + struct sge *s = &adapter->sge; + struct fw_caps_config_cmd caps_cmd; + u32 v; + int i, ret; + + /* + * Reset device if necessary + */ + if (reset) { + ret = t4_fw_reset(adapter, adapter->mbox, + PIORSTMODE | PIORST); + if (ret < 0) + goto bye; + } + + /* + * Get device capabilities and select which we'll be using. + */ + memset(&caps_cmd, 0, sizeof(caps_cmd)); + caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | + FW_CMD_REQUEST | FW_CMD_READ); + caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd)); + ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), + &caps_cmd); + if (ret < 0) + goto bye; + + if (caps_cmd.niccaps & htons(FW_CAPS_CONFIG_NIC_VM)) { + if (!vf_acls) + caps_cmd.niccaps ^= htons(FW_CAPS_CONFIG_NIC_VM); + else + caps_cmd.niccaps = htons(FW_CAPS_CONFIG_NIC_VM); + } else if (vf_acls) { + dev_err(adapter->pdev_dev, "virtualization ACLs not supported"); + goto bye; + } + caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | + FW_CMD_REQUEST | FW_CMD_WRITE); + ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), + NULL); + if (ret < 0) + goto bye; + + /* + * Tweak configuration based on system architecture, module + * parameters, etc. + */ + ret = adap_init0_tweaks(adapter); + if (ret < 0) + goto bye; + + /* + * Select RSS Global Mode we want to use. We use "Basic Virtual" + * mode which maps each Virtual Interface to its own section of + * the RSS Table and we turn on all map and hash enables ... + */ + adapter->flags |= RSS_TNLALLLOOKUP; + ret = t4_config_glbl_rss(adapter, adapter->mbox, + FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL, + FW_RSS_GLB_CONFIG_CMD_TNLMAPEN | + FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ | + ((adapter->flags & RSS_TNLALLLOOKUP) ? + FW_RSS_GLB_CONFIG_CMD_TNLALLLKP : 0)); + if (ret < 0) + goto bye; + + /* + * Set up our own fundamental resource provisioning ... + */ + ret = t4_cfg_pfvf(adapter, adapter->mbox, adapter->fn, 0, + PFRES_NEQ, PFRES_NETHCTRL, + PFRES_NIQFLINT, PFRES_NIQ, + PFRES_TC, PFRES_NVI, + FW_PFVF_CMD_CMASK_MASK, + pfvfres_pmask(adapter, adapter->fn, 0), + PFRES_NEXACTF, + PFRES_R_CAPS, PFRES_WX_CAPS); + if (ret < 0) + goto bye; + + /* + * Perform low level SGE initialization. We need to do this before we + * send the firmware the INITIALIZE command because that will cause + * any other PF Drivers which are waiting for the Master + * Initialization to proceed forward. + */ + for (i = 0; i < SGE_NTIMERS - 1; i++) + s->timer_val[i] = min(intr_holdoff[i], MAX_SGE_TIMERVAL); + s->timer_val[SGE_NTIMERS - 1] = MAX_SGE_TIMERVAL; + s->counter_val[0] = 1; + for (i = 1; i < SGE_NCOUNTERS; i++) + s->counter_val[i] = min(intr_cnt[i - 1], + THRESHOLD_0_GET(THRESHOLD_0_MASK)); + t4_sge_init(adapter); + +#ifdef CONFIG_PCI_IOV + /* + * Provision resource limits for Virtual Functions. We currently + * grant them all the same static resource limits except for the Port + * Access Rights Mask which we're assigning based on the PF. All of + * the static provisioning stuff for both the PF and VF really needs + * to be managed in a persistent manner for each device which the + * firmware controls. + */ + { + int pf, vf; + + for (pf = 0; pf < ARRAY_SIZE(num_vf); pf++) { + if (num_vf[pf] <= 0) + continue; + + /* VF numbering starts at 1! */ + for (vf = 1; vf <= num_vf[pf]; vf++) { + ret = t4_cfg_pfvf(adapter, adapter->mbox, + pf, vf, + VFRES_NEQ, VFRES_NETHCTRL, + VFRES_NIQFLINT, VFRES_NIQ, + VFRES_TC, VFRES_NVI, + FW_PFVF_CMD_CMASK_MASK, + pfvfres_pmask( + adapter, pf, vf), + VFRES_NEXACTF, + VFRES_R_CAPS, VFRES_WX_CAPS); + if (ret < 0) + dev_warn(adapter->pdev_dev, + "failed to "\ + "provision pf/vf=%d/%d; " + "err=%d\n", pf, vf, ret); + } + } + } +#endif + + /* + * Set up the default filter mode. Later we'll want to implement this + * via a firmware command, etc. ... This needs to be done before the + * firmare initialization command ... If the selected set of fields + * isn't equal to the default value, we'll need to make sure that the + * field selections will fit in the 36-bit budget. + */ + if (tp_vlan_pri_map != TP_VLAN_PRI_MAP_DEFAULT) { + int j, bits = 0; + + for (j = TP_VLAN_PRI_MAP_FIRST; j <= TP_VLAN_PRI_MAP_LAST; j++) + switch (tp_vlan_pri_map & (1 << j)) { + case 0: + /* compressed filter field not enabled */ + break; + case FCOE_MASK: + bits += 1; + break; + case PORT_MASK: + bits += 3; + break; + case VNIC_ID_MASK: + bits += 17; + break; + case VLAN_MASK: + bits += 17; + break; + case TOS_MASK: + bits += 8; + break; + case PROTOCOL_MASK: + bits += 8; + break; + case ETHERTYPE_MASK: + bits += 16; + break; + case MACMATCH_MASK: + bits += 9; + break; + case MPSHITTYPE_MASK: + bits += 3; + break; + case FRAGMENTATION_MASK: + bits += 1; + break; + } + + if (bits > 36) { + dev_err(adapter->pdev_dev, + "tp_vlan_pri_map=%#x needs %d bits > 36;"\ + " using %#x\n", tp_vlan_pri_map, bits, + TP_VLAN_PRI_MAP_DEFAULT); + tp_vlan_pri_map = TP_VLAN_PRI_MAP_DEFAULT; + } + } + v = tp_vlan_pri_map; + t4_write_indirect(adapter, TP_PIO_ADDR, TP_PIO_DATA, + &v, 1, TP_VLAN_PRI_MAP); + + /* + * We need Five Tuple Lookup mode to be set in TP_GLOBAL_CONFIG order + * to support any of the compressed filter fields above. Newer + * versions of the firmware do this automatically but it doesn't hurt + * to set it here. Meanwhile, we do _not_ need to set Lookup Every + * Packet in TP_INGRESS_CONFIG to support matching non-TCP packets + * since the firmware automatically turns this on and off when we have + * a non-zero number of filters active (since it does have a + * performance impact). + */ + if (tp_vlan_pri_map) + t4_set_reg_field(adapter, TP_GLOBAL_CONFIG, + FIVETUPLELOOKUP_MASK, + FIVETUPLELOOKUP_MASK); + + /* + * Tweak some settings. + */ + t4_write_reg(adapter, TP_SHIFT_CNT, SYNSHIFTMAX(6) | + RXTSHIFTMAXR1(4) | RXTSHIFTMAXR2(15) | + PERSHIFTBACKOFFMAX(8) | PERSHIFTMAX(8) | + KEEPALIVEMAXR1(4) | KEEPALIVEMAXR2(9)); + + /* + * Get basic stuff going by issuing the Firmware Initialize command. + * Note that this _must_ be after all PFVF commands ... + */ + ret = t4_fw_initialize(adapter, adapter->mbox); + if (ret < 0) + goto bye; + + /* + * Return successfully! + */ + dev_info(adapter->pdev_dev, "Successfully configured using built-in "\ + "driver parameters\n"); + return 0; + + /* + * Something bad happened. Return the error ... + */ +bye: + return ret; +} + +static struct fw_info fw_info_array[] = { + { + .chip = CHELSIO_T4, + .fs_name = FW4_CFNAME, + .fw_mod_name = FW4_FNAME, + .fw_hdr = { + .chip = FW_HDR_CHIP_T4, + .fw_ver = __cpu_to_be32(FW_VERSION(T4)), + .intfver_nic = FW_INTFVER(T4, NIC), + .intfver_vnic = FW_INTFVER(T4, VNIC), + .intfver_ri = FW_INTFVER(T4, RI), + .intfver_iscsi = FW_INTFVER(T4, ISCSI), + .intfver_fcoe = FW_INTFVER(T4, FCOE), + }, + }, { + .chip = CHELSIO_T5, + .fs_name = FW5_CFNAME, + .fw_mod_name = FW5_FNAME, + .fw_hdr = { + .chip = FW_HDR_CHIP_T5, + .fw_ver = __cpu_to_be32(FW_VERSION(T5)), + .intfver_nic = FW_INTFVER(T5, NIC), + .intfver_vnic = FW_INTFVER(T5, VNIC), + .intfver_ri = FW_INTFVER(T5, RI), + .intfver_iscsi = FW_INTFVER(T5, ISCSI), + .intfver_fcoe = FW_INTFVER(T5, FCOE), + }, + } +}; + +static struct fw_info *find_fw_info(int chip) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(fw_info_array); i++) { + if (fw_info_array[i].chip == chip) + return &fw_info_array[i]; + } + return NULL; +} + +/* + * Phase 0 of initialization: contact FW, obtain config, perform basic init. + */ +static int adap_init0(struct adapter *adap) +{ + int ret; + u32 v, port_vec; + enum dev_state state; + u32 params[7], val[7]; + struct fw_caps_config_cmd caps_cmd; + int reset = 1; + + /* + * Contact FW, advertising Master capability (and potentially forcing + * ourselves as the Master PF if our module parameter force_init is + * set). + */ + ret = t4_fw_hello(adap, adap->mbox, adap->fn, + force_init ? MASTER_MUST : MASTER_MAY, + &state); + if (ret < 0) { + dev_err(adap->pdev_dev, "could not connect to FW, error %d\n", + ret); + return ret; + } + if (ret == adap->mbox) + adap->flags |= MASTER_PF; + if (force_init && state == DEV_STATE_INIT) + state = DEV_STATE_UNINIT; + + /* + * If we're the Master PF Driver and the device is uninitialized, + * then let's consider upgrading the firmware ... (We always want + * to check the firmware version number in order to A. get it for + * later reporting and B. to warn if the currently loaded firmware + * is excessively mismatched relative to the driver.) + */ + t4_get_fw_version(adap, &adap->params.fw_vers); + t4_get_tp_version(adap, &adap->params.tp_vers); + if ((adap->flags & MASTER_PF) && state != DEV_STATE_INIT) { + struct fw_info *fw_info; + struct fw_hdr *card_fw; + const struct firmware *fw; + const u8 *fw_data = NULL; + unsigned int fw_size = 0; + + /* This is the firmware whose headers the driver was compiled + * against + */ + fw_info = find_fw_info(CHELSIO_CHIP_VERSION(adap->params.chip)); + if (fw_info == NULL) { + dev_err(adap->pdev_dev, + "unable to get firmware info for chip %d.\n", + CHELSIO_CHIP_VERSION(adap->params.chip)); + return -EINVAL; + } + + /* allocate memory to read the header of the firmware on the + * card + */ + card_fw = t4_alloc_mem(sizeof(*card_fw)); + + /* Get FW from from /lib/firmware/ */ + ret = request_firmware(&fw, fw_info->fw_mod_name, + adap->pdev_dev); + if (ret < 0) { + dev_err(adap->pdev_dev, + "unable to load firmware image %s, error %d\n", + fw_info->fw_mod_name, ret); + } else { + fw_data = fw->data; + fw_size = fw->size; + } + + /* upgrade FW logic */ + ret = t4_prep_fw(adap, fw_info, fw_data, fw_size, card_fw, + state, &reset); + + /* Cleaning up */ + if (fw != NULL) + release_firmware(fw); + t4_free_mem(card_fw); + + if (ret < 0) + goto bye; + } + + /* + * Grab VPD parameters. This should be done after we establish a + * connection to the firmware since some of the VPD parameters + * (notably the Core Clock frequency) are retrieved via requests to + * the firmware. On the other hand, we need these fairly early on + * so we do this right after getting ahold of the firmware. + */ + ret = get_vpd_params(adap, &adap->params.vpd); + if (ret < 0) + goto bye; + + /* + * Find out what ports are available to us. Note that we need to do + * this before calling adap_init0_no_config() since it needs nports + * and portvec ... + */ + v = + FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | + FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_PORTVEC); + ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 1, &v, &port_vec); + if (ret < 0) + goto bye; + + adap->params.nports = hweight32(port_vec); + adap->params.portvec = port_vec; + + /* + * If the firmware is initialized already (and we're not forcing a + * master initialization), note that we're living with existing + * adapter parameters. Otherwise, it's time to try initializing the + * adapter ... + */ + if (state == DEV_STATE_INIT) { + dev_info(adap->pdev_dev, "Coming up as %s: "\ + "Adapter already initialized\n", + adap->flags & MASTER_PF ? "MASTER" : "SLAVE"); + adap->flags |= USING_SOFT_PARAMS; + } else { + dev_info(adap->pdev_dev, "Coming up as MASTER: "\ + "Initializing adapter\n"); + + /* + * If the firmware doesn't support Configuration + * Files warn user and exit, + */ + if (ret < 0) + dev_warn(adap->pdev_dev, "Firmware doesn't support " + "configuration file.\n"); + if (force_old_init) + ret = adap_init0_no_config(adap, reset); + else { + /* + * Find out whether we're dealing with a version of + * the firmware which has configuration file support. + */ + params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | + FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CF)); + ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 1, + params, val); + + /* + * If the firmware doesn't support Configuration + * Files, use the old Driver-based, hard-wired + * initialization. Otherwise, try using the + * Configuration File support and fall back to the + * Driver-based initialization if there's no + * Configuration File found. + */ + if (ret < 0) + ret = adap_init0_no_config(adap, reset); + else { + /* + * The firmware provides us with a memory + * buffer where we can load a Configuration + * File from the host if we want to override + * the Configuration File in flash. + */ + + ret = adap_init0_config(adap, reset); + if (ret == -ENOENT) { + dev_info(adap->pdev_dev, + "No Configuration File present " + "on adapter. Using hard-wired " + "configuration parameters.\n"); + ret = adap_init0_no_config(adap, reset); + } + } + } + if (ret < 0) { + dev_err(adap->pdev_dev, + "could not initialize adapter, error %d\n", + -ret); + goto bye; + } + } + + /* + * If we're living with non-hard-coded parameters (either from a + * Firmware Configuration File or values programmed by a different PF + * Driver), give the SGE code a chance to pull in anything that it + * needs ... Note that this must be called after we retrieve our VPD + * parameters in order to know how to convert core ticks to seconds. + */ + if (adap->flags & USING_SOFT_PARAMS) { + ret = t4_sge_init(adap); + if (ret < 0) + goto bye; + } + + if (is_bypass_device(adap->pdev->device)) + adap->params.bypass = 1; + + /* + * Grab some of our basic fundamental operating parameters. + */ +#define FW_PARAM_DEV(param) \ + (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \ + FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param)) + +#define FW_PARAM_PFVF(param) \ + FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \ + FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param)| \ + FW_PARAMS_PARAM_Y(0) | \ + FW_PARAMS_PARAM_Z(0) + + params[0] = FW_PARAM_PFVF(EQ_START); + params[1] = FW_PARAM_PFVF(L2T_START); + params[2] = FW_PARAM_PFVF(L2T_END); + params[3] = FW_PARAM_PFVF(FILTER_START); + params[4] = FW_PARAM_PFVF(FILTER_END); + params[5] = FW_PARAM_PFVF(IQFLINT_START); + ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6, params, val); + if (ret < 0) + goto bye; + adap->sge.egr_start = val[0]; + adap->l2t_start = val[1]; + adap->l2t_end = val[2]; + adap->tids.ftid_base = val[3]; + adap->tids.nftids = val[4] - val[3] + 1; + adap->sge.ingr_start = val[5]; + + /* query params related to active filter region */ + params[0] = FW_PARAM_PFVF(ACTIVE_FILTER_START); + params[1] = FW_PARAM_PFVF(ACTIVE_FILTER_END); + ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, params, val); + /* If Active filter size is set we enable establishing + * offload connection through firmware work request + */ + if ((val[0] != val[1]) && (ret >= 0)) { + adap->flags |= FW_OFLD_CONN; + adap->tids.aftid_base = val[0]; + adap->tids.aftid_end = val[1]; + } + + /* If we're running on newer firmware, let it know that we're + * prepared to deal with encapsulated CPL messages. Older + * firmware won't understand this and we'll just get + * unencapsulated messages ... + */ + params[0] = FW_PARAM_PFVF(CPLFW4MSG_ENCAP); + val[0] = 1; + (void) t4_set_params(adap, adap->mbox, adap->fn, 0, 1, params, val); + + /* + * Find out whether we're allowed to use the T5+ ULPTX MEMWRITE DSGL + * capability. Earlier versions of the firmware didn't have the + * ULPTX_MEMWRITE_DSGL so we'll interpret a query failure as no + * permission to use ULPTX MEMWRITE DSGL. + */ + if (is_t4(adap->params.chip)) { + adap->params.ulptx_memwrite_dsgl = false; + } else { + params[0] = FW_PARAM_DEV(ULPTX_MEMWRITE_DSGL); + ret = t4_query_params(adap, adap->mbox, adap->fn, 0, + 1, params, val); + adap->params.ulptx_memwrite_dsgl = (ret == 0 && val[0] != 0); + } + + /* + * Get device capabilities so we can determine what resources we need + * to manage. + */ + memset(&caps_cmd, 0, sizeof(caps_cmd)); + caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | + FW_CMD_REQUEST | FW_CMD_READ); + caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd)); + ret = t4_wr_mbox(adap, adap->mbox, &caps_cmd, sizeof(caps_cmd), + &caps_cmd); + if (ret < 0) + goto bye; + + if (caps_cmd.ofldcaps) { + /* query offload-related parameters */ + params[0] = FW_PARAM_DEV(NTID); + params[1] = FW_PARAM_PFVF(SERVER_START); + params[2] = FW_PARAM_PFVF(SERVER_END); + params[3] = FW_PARAM_PFVF(TDDP_START); + params[4] = FW_PARAM_PFVF(TDDP_END); + params[5] = FW_PARAM_DEV(FLOWC_BUFFIFO_SZ); + ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6, + params, val); + if (ret < 0) + goto bye; + adap->tids.ntids = val[0]; + adap->tids.natids = min(adap->tids.ntids / 2, MAX_ATIDS); + adap->tids.stid_base = val[1]; + adap->tids.nstids = val[2] - val[1] + 1; + /* + * Setup server filter region. Divide the availble filter + * region into two parts. Regular filters get 1/3rd and server + * filters get 2/3rd part. This is only enabled if workarond + * path is enabled. + * 1. For regular filters. + * 2. Server filter: This are special filters which are used + * to redirect SYN packets to offload queue. + */ + if (adap->flags & FW_OFLD_CONN && !is_bypass(adap)) { + adap->tids.sftid_base = adap->tids.ftid_base + + DIV_ROUND_UP(adap->tids.nftids, 3); + adap->tids.nsftids = adap->tids.nftids - + DIV_ROUND_UP(adap->tids.nftids, 3); + adap->tids.nftids = adap->tids.sftid_base - + adap->tids.ftid_base; + } + adap->vres.ddp.start = val[3]; + adap->vres.ddp.size = val[4] - val[3] + 1; + adap->params.ofldq_wr_cred = val[5]; + + adap->params.offload = 1; + } + if (caps_cmd.rdmacaps) { + params[0] = FW_PARAM_PFVF(STAG_START); + params[1] = FW_PARAM_PFVF(STAG_END); + params[2] = FW_PARAM_PFVF(RQ_START); + params[3] = FW_PARAM_PFVF(RQ_END); + params[4] = FW_PARAM_PFVF(PBL_START); + params[5] = FW_PARAM_PFVF(PBL_END); + ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6, + params, val); + if (ret < 0) + goto bye; + adap->vres.stag.start = val[0]; + adap->vres.stag.size = val[1] - val[0] + 1; + adap->vres.rq.start = val[2]; + adap->vres.rq.size = val[3] - val[2] + 1; + adap->vres.pbl.start = val[4]; + adap->vres.pbl.size = val[5] - val[4] + 1; + + params[0] = FW_PARAM_PFVF(SQRQ_START); + params[1] = FW_PARAM_PFVF(SQRQ_END); + params[2] = FW_PARAM_PFVF(CQ_START); + params[3] = FW_PARAM_PFVF(CQ_END); + params[4] = FW_PARAM_PFVF(OCQ_START); + params[5] = FW_PARAM_PFVF(OCQ_END); + ret = t4_query_params(adap, 0, 0, 0, 6, params, val); + if (ret < 0) + goto bye; + adap->vres.qp.start = val[0]; + adap->vres.qp.size = val[1] - val[0] + 1; + adap->vres.cq.start = val[2]; + adap->vres.cq.size = val[3] - val[2] + 1; + adap->vres.ocq.start = val[4]; + adap->vres.ocq.size = val[5] - val[4] + 1; + } + if (caps_cmd.iscsicaps) { + params[0] = FW_PARAM_PFVF(ISCSI_START); + params[1] = FW_PARAM_PFVF(ISCSI_END); + ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, + params, val); + if (ret < 0) + goto bye; + adap->vres.iscsi.start = val[0]; + adap->vres.iscsi.size = val[1] - val[0] + 1; + } +#undef FW_PARAM_PFVF +#undef FW_PARAM_DEV + + /* The MTU/MSS Table is initialized by now, so load their values. If + * we're initializing the adapter, then we'll make any modifications + * we want to the MTU/MSS Table and also initialize the congestion + * parameters. + */ + t4_read_mtu_tbl(adap, adap->params.mtus, NULL); + if (state != DEV_STATE_INIT) { + int i; + + /* The default MTU Table contains values 1492 and 1500. + * However, for TCP, it's better to have two values which are + * a multiple of 8 +/- 4 bytes apart near this popular MTU. + * This allows us to have a TCP Data Payload which is a + * multiple of 8 regardless of what combination of TCP Options + * are in use (always a multiple of 4 bytes) which is + * important for performance reasons. For instance, if no + * options are in use, then we have a 20-byte IP header and a + * 20-byte TCP header. In this case, a 1500-byte MSS would + * result in a TCP Data Payload of 1500 - 40 == 1460 bytes + * which is not a multiple of 8. So using an MSS of 1488 in + * this case results in a TCP Data Payload of 1448 bytes which + * is a multiple of 8. On the other hand, if 12-byte TCP Time + * Stamps have been negotiated, then an MTU of 1500 bytes + * results in a TCP Data Payload of 1448 bytes which, as + * above, is a multiple of 8 bytes ... + */ + for (i = 0; i < NMTUS; i++) + if (adap->params.mtus[i] == 1492) { + adap->params.mtus[i] = 1488; + break; + } + + t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd, + adap->params.b_wnd); + } + t4_init_tp_params(adap); + adap->flags |= FW_OK; + return 0; + + /* + * Something bad happened. If a command timed out or failed with EIO + * FW does not operate within its spec or something catastrophic + * happened to HW/FW, stop issuing commands. + */ +bye: + if (ret != -ETIMEDOUT && ret != -EIO) + t4_fw_bye(adap, adap->mbox); + return ret; +} + +/* EEH callbacks */ + +static pci_ers_result_t eeh_err_detected(struct pci_dev *pdev, + pci_channel_state_t state) +{ + int i; + struct adapter *adap = pci_get_drvdata(pdev); + + if (!adap) + goto out; + + rtnl_lock(); + adap->flags &= ~FW_OK; + notify_ulds(adap, CXGB4_STATE_START_RECOVERY); + spin_lock(&adap->stats_lock); + for_each_port(adap, i) { + struct net_device *dev = adap->port[i]; + + netif_device_detach(dev); + netif_carrier_off(dev); + } + spin_unlock(&adap->stats_lock); + if (adap->flags & FULL_INIT_DONE) + cxgb_down(adap); + rtnl_unlock(); + if ((adap->flags & DEV_ENABLED)) { + pci_disable_device(pdev); + adap->flags &= ~DEV_ENABLED; + } +out: return state == pci_channel_io_perm_failure ? + PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET; +} + +static pci_ers_result_t eeh_slot_reset(struct pci_dev *pdev) +{ + int i, ret; + struct fw_caps_config_cmd c; + struct adapter *adap = pci_get_drvdata(pdev); + + if (!adap) { + pci_restore_state(pdev); + pci_save_state(pdev); + return PCI_ERS_RESULT_RECOVERED; + } + + if (!(adap->flags & DEV_ENABLED)) { + if (pci_enable_device(pdev)) { + dev_err(&pdev->dev, "Cannot reenable PCI " + "device after reset\n"); + return PCI_ERS_RESULT_DISCONNECT; + } + adap->flags |= DEV_ENABLED; + } + + pci_set_master(pdev); + pci_restore_state(pdev); + pci_save_state(pdev); + pci_cleanup_aer_uncorrect_error_status(pdev); + + if (t4_wait_dev_ready(adap) < 0) + return PCI_ERS_RESULT_DISCONNECT; + if (t4_fw_hello(adap, adap->fn, adap->fn, MASTER_MUST, NULL) < 0) + return PCI_ERS_RESULT_DISCONNECT; + adap->flags |= FW_OK; + if (adap_init1(adap, &c)) + return PCI_ERS_RESULT_DISCONNECT; + + for_each_port(adap, i) { + struct port_info *p = adap2pinfo(adap, i); + + ret = t4_alloc_vi(adap, adap->fn, p->tx_chan, adap->fn, 0, 1, + NULL, NULL); + if (ret < 0) + return PCI_ERS_RESULT_DISCONNECT; + p->viid = ret; + p->xact_addr_filt = -1; + } + + t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd, + adap->params.b_wnd); + setup_memwin(adap); + if (cxgb_up(adap)) + return PCI_ERS_RESULT_DISCONNECT; + return PCI_ERS_RESULT_RECOVERED; +} + +static void eeh_resume(struct pci_dev *pdev) +{ + int i; + struct adapter *adap = pci_get_drvdata(pdev); + + if (!adap) + return; + + rtnl_lock(); + for_each_port(adap, i) { + struct net_device *dev = adap->port[i]; + + if (netif_running(dev)) { + link_start(dev); + cxgb_set_rxmode(dev); + } + netif_device_attach(dev); + } + rtnl_unlock(); +} + +static const struct pci_error_handlers cxgb4_eeh = { + .error_detected = eeh_err_detected, + .slot_reset = eeh_slot_reset, + .resume = eeh_resume, +}; + +static inline bool is_x_10g_port(const struct link_config *lc) +{ + return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0 || + (lc->supported & FW_PORT_CAP_SPEED_40G) != 0; +} + +static inline void init_rspq(struct adapter *adap, struct sge_rspq *q, + unsigned int us, unsigned int cnt, + unsigned int size, unsigned int iqe_size) +{ + q->adap = adap; + set_rspq_intr_params(q, us, cnt); + q->iqe_len = iqe_size; + q->size = size; +} + +/* + * Perform default configuration of DMA queues depending on the number and type + * of ports we found and the number of available CPUs. Most settings can be + * modified by the admin prior to actual use. + */ +static void cfg_queues(struct adapter *adap) +{ + struct sge *s = &adap->sge; + int i, q10g = 0, n10g = 0, qidx = 0; + int ciq_size; + + for_each_port(adap, i) + n10g += is_x_10g_port(&adap2pinfo(adap, i)->link_cfg); + + /* + * We default to 1 queue per non-10G port and up to # of cores queues + * per 10G port. + */ + if (n10g) + q10g = (MAX_ETH_QSETS - (adap->params.nports - n10g)) / n10g; + if (q10g > netif_get_num_default_rss_queues()) + q10g = netif_get_num_default_rss_queues(); + + for_each_port(adap, i) { + struct port_info *pi = adap2pinfo(adap, i); + + pi->first_qset = qidx; + pi->nqsets = is_x_10g_port(&pi->link_cfg) ? q10g : 1; + qidx += pi->nqsets; + } + + s->ethqsets = qidx; + s->max_ethqsets = qidx; /* MSI-X may lower it later */ + + if (is_offload(adap)) { + /* + * For offload we use 1 queue/channel if all ports are up to 1G, + * otherwise we divide all available queues amongst the channels + * capped by the number of available cores. + */ + if (n10g) { + i = min_t(int, ARRAY_SIZE(s->ofldrxq), + num_online_cpus()); + s->ofldqsets = roundup(i, adap->params.nports); + } else + s->ofldqsets = adap->params.nports; + /* For RDMA one Rx queue per channel suffices */ + s->rdmaqs = adap->params.nports; + s->rdmaciqs = adap->params.nports; + } + + for (i = 0; i < ARRAY_SIZE(s->ethrxq); i++) { + struct sge_eth_rxq *r = &s->ethrxq[i]; + + init_rspq(adap, &r->rspq, 5, 10, 1024, 64); + r->fl.size = 72; + } + + for (i = 0; i < ARRAY_SIZE(s->ethtxq); i++) + s->ethtxq[i].q.size = 1024; + + for (i = 0; i < ARRAY_SIZE(s->ctrlq); i++) + s->ctrlq[i].q.size = 512; + + for (i = 0; i < ARRAY_SIZE(s->ofldtxq); i++) + s->ofldtxq[i].q.size = 1024; + + for (i = 0; i < ARRAY_SIZE(s->ofldrxq); i++) { + struct sge_ofld_rxq *r = &s->ofldrxq[i]; + + init_rspq(adap, &r->rspq, 5, 1, 1024, 64); + r->rspq.uld = CXGB4_ULD_ISCSI; + r->fl.size = 72; + } + + for (i = 0; i < ARRAY_SIZE(s->rdmarxq); i++) { + struct sge_ofld_rxq *r = &s->rdmarxq[i]; + + init_rspq(adap, &r->rspq, 5, 1, 511, 64); + r->rspq.uld = CXGB4_ULD_RDMA; + r->fl.size = 72; + } + + ciq_size = 64 + adap->vres.cq.size + adap->tids.nftids; + if (ciq_size > SGE_MAX_IQ_SIZE) { + CH_WARN(adap, "CIQ size too small for available IQs\n"); + ciq_size = SGE_MAX_IQ_SIZE; + } + + for (i = 0; i < ARRAY_SIZE(s->rdmaciq); i++) { + struct sge_ofld_rxq *r = &s->rdmaciq[i]; + + init_rspq(adap, &r->rspq, 5, 1, ciq_size, 64); + r->rspq.uld = CXGB4_ULD_RDMA; + } + + init_rspq(adap, &s->fw_evtq, 0, 1, 1024, 64); + init_rspq(adap, &s->intrq, 0, 1, 2 * MAX_INGQ, 64); +} + +/* + * Reduce the number of Ethernet queues across all ports to at most n. + * n provides at least one queue per port. + */ +static void reduce_ethqs(struct adapter *adap, int n) +{ + int i; + struct port_info *pi; + + while (n < adap->sge.ethqsets) + for_each_port(adap, i) { + pi = adap2pinfo(adap, i); + if (pi->nqsets > 1) { + pi->nqsets--; + adap->sge.ethqsets--; + if (adap->sge.ethqsets <= n) + break; + } + } + + n = 0; + for_each_port(adap, i) { + pi = adap2pinfo(adap, i); + pi->first_qset = n; + n += pi->nqsets; + } +} + +/* 2 MSI-X vectors needed for the FW queue and non-data interrupts */ +#define EXTRA_VECS 2 + +static int enable_msix(struct adapter *adap) +{ + int ofld_need = 0; + int i, want, need; + struct sge *s = &adap->sge; + unsigned int nchan = adap->params.nports; + struct msix_entry entries[MAX_INGQ + 1]; + + for (i = 0; i < ARRAY_SIZE(entries); ++i) + entries[i].entry = i; + + want = s->max_ethqsets + EXTRA_VECS; + if (is_offload(adap)) { + want += s->rdmaqs + s->rdmaciqs + s->ofldqsets; + /* need nchan for each possible ULD */ + ofld_need = 3 * nchan; + } + need = adap->params.nports + EXTRA_VECS + ofld_need; + + want = pci_enable_msix_range(adap->pdev, entries, need, want); + if (want < 0) + return want; + + /* + * Distribute available vectors to the various queue groups. + * Every group gets its minimum requirement and NIC gets top + * priority for leftovers. + */ + i = want - EXTRA_VECS - ofld_need; + if (i < s->max_ethqsets) { + s->max_ethqsets = i; + if (i < s->ethqsets) + reduce_ethqs(adap, i); + } + if (is_offload(adap)) { + i = want - EXTRA_VECS - s->max_ethqsets; + i -= ofld_need - nchan; + s->ofldqsets = (i / nchan) * nchan; /* round down */ + } + for (i = 0; i < want; ++i) + adap->msix_info[i].vec = entries[i].vector; + + return 0; +} + +#undef EXTRA_VECS + +static int init_rss(struct adapter *adap) +{ + unsigned int i, j; + + for_each_port(adap, i) { + struct port_info *pi = adap2pinfo(adap, i); + + pi->rss = kcalloc(pi->rss_size, sizeof(u16), GFP_KERNEL); + if (!pi->rss) + return -ENOMEM; + for (j = 0; j < pi->rss_size; j++) + pi->rss[j] = ethtool_rxfh_indir_default(j, pi->nqsets); + } + return 0; +} + +static void print_port_info(const struct net_device *dev) +{ + char buf[80]; + char *bufp = buf; + const char *spd = ""; + const struct port_info *pi = netdev_priv(dev); + const struct adapter *adap = pi->adapter; + + if (adap->params.pci.speed == PCI_EXP_LNKSTA_CLS_2_5GB) + spd = " 2.5 GT/s"; + else if (adap->params.pci.speed == PCI_EXP_LNKSTA_CLS_5_0GB) + spd = " 5 GT/s"; + else if (adap->params.pci.speed == PCI_EXP_LNKSTA_CLS_8_0GB) + spd = " 8 GT/s"; + + if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_100M) + bufp += sprintf(bufp, "100/"); + if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_1G) + bufp += sprintf(bufp, "1000/"); + if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_10G) + bufp += sprintf(bufp, "10G/"); + if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_40G) + bufp += sprintf(bufp, "40G/"); + if (bufp != buf) + --bufp; + sprintf(bufp, "BASE-%s", t4_get_port_type_description(pi->port_type)); + + netdev_info(dev, "Chelsio %s rev %d %s %sNIC PCIe x%d%s%s\n", + adap->params.vpd.id, + CHELSIO_CHIP_RELEASE(adap->params.chip), buf, + is_offload(adap) ? "R" : "", adap->params.pci.width, spd, + (adap->flags & USING_MSIX) ? " MSI-X" : + (adap->flags & USING_MSI) ? " MSI" : ""); + netdev_info(dev, "S/N: %s, P/N: %s\n", + adap->params.vpd.sn, adap->params.vpd.pn); +} + +static void enable_pcie_relaxed_ordering(struct pci_dev *dev) +{ + pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_RELAX_EN); +} + +/* + * Free the following resources: + * - memory used for tables + * - MSI/MSI-X + * - net devices + * - resources FW is holding for us + */ +static void free_some_resources(struct adapter *adapter) +{ + unsigned int i; + + t4_free_mem(adapter->l2t); + t4_free_mem(adapter->tids.tid_tab); + disable_msi(adapter); + + for_each_port(adapter, i) + if (adapter->port[i]) { + kfree(adap2pinfo(adapter, i)->rss); + free_netdev(adapter->port[i]); + } + if (adapter->flags & FW_OK) + t4_fw_bye(adapter, adapter->fn); +} + +#define TSO_FLAGS (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN) +#define VLAN_FEAT (NETIF_F_SG | NETIF_F_IP_CSUM | TSO_FLAGS | \ + NETIF_F_IPV6_CSUM | NETIF_F_HIGHDMA) +#define SEGMENT_SIZE 128 + +static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + int func, i, err, s_qpp, qpp, num_seg; + struct port_info *pi; + bool highdma = false; + struct adapter *adapter = NULL; + + printk_once(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION); + + err = pci_request_regions(pdev, KBUILD_MODNAME); + if (err) { + /* Just info, some other driver may have claimed the device. */ + dev_info(&pdev->dev, "cannot obtain PCI resources\n"); + return err; + } + + /* We control everything through one PF */ + func = PCI_FUNC(pdev->devfn); + if (func != ent->driver_data) { + pci_save_state(pdev); /* to restore SR-IOV later */ + goto sriov; + } + + err = pci_enable_device(pdev); + if (err) { + dev_err(&pdev->dev, "cannot enable PCI device\n"); + goto out_release_regions; + } + + if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { + highdma = true; + err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); + if (err) { + dev_err(&pdev->dev, "unable to obtain 64-bit DMA for " + "coherent allocations\n"); + goto out_disable_device; + } + } else { + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + if (err) { + dev_err(&pdev->dev, "no usable DMA configuration\n"); + goto out_disable_device; + } + } + + pci_enable_pcie_error_reporting(pdev); + enable_pcie_relaxed_ordering(pdev); + pci_set_master(pdev); + pci_save_state(pdev); + + adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); + if (!adapter) { + err = -ENOMEM; + goto out_disable_device; + } + + /* PCI device has been enabled */ + adapter->flags |= DEV_ENABLED; + + adapter->regs = pci_ioremap_bar(pdev, 0); + if (!adapter->regs) { + dev_err(&pdev->dev, "cannot map device registers\n"); + err = -ENOMEM; + goto out_free_adapter; + } + + adapter->pdev = pdev; + adapter->pdev_dev = &pdev->dev; + adapter->mbox = func; + adapter->fn = func; + adapter->msg_enable = dflt_msg_enable; + memset(adapter->chan_map, 0xff, sizeof(adapter->chan_map)); + + spin_lock_init(&adapter->stats_lock); + spin_lock_init(&adapter->tid_release_lock); + + INIT_WORK(&adapter->tid_release_task, process_tid_release_list); + INIT_WORK(&adapter->db_full_task, process_db_full); + INIT_WORK(&adapter->db_drop_task, process_db_drop); + + err = t4_prep_adapter(adapter); + if (err) + goto out_unmap_bar0; + + if (!is_t4(adapter->params.chip)) { + s_qpp = QUEUESPERPAGEPF1 * adapter->fn; + qpp = 1 << QUEUESPERPAGEPF0_GET(t4_read_reg(adapter, + SGE_EGRESS_QUEUES_PER_PAGE_PF) >> s_qpp); + num_seg = PAGE_SIZE / SEGMENT_SIZE; + + /* Each segment size is 128B. Write coalescing is enabled only + * when SGE_EGRESS_QUEUES_PER_PAGE_PF reg value for the + * queue is less no of segments that can be accommodated in + * a page size. + */ + if (qpp > num_seg) { + dev_err(&pdev->dev, + "Incorrect number of egress queues per page\n"); + err = -EINVAL; + goto out_unmap_bar0; + } + adapter->bar2 = ioremap_wc(pci_resource_start(pdev, 2), + pci_resource_len(pdev, 2)); + if (!adapter->bar2) { + dev_err(&pdev->dev, "cannot map device bar2 region\n"); + err = -ENOMEM; + goto out_unmap_bar0; + } + } + + setup_memwin(adapter); + err = adap_init0(adapter); + setup_memwin_rdma(adapter); + if (err) + goto out_unmap_bar; + + for_each_port(adapter, i) { + struct net_device *netdev; + + netdev = alloc_etherdev_mq(sizeof(struct port_info), + MAX_ETH_QSETS); + if (!netdev) { + err = -ENOMEM; + goto out_free_dev; + } + + SET_NETDEV_DEV(netdev, &pdev->dev); + + adapter->port[i] = netdev; + pi = netdev_priv(netdev); + pi->adapter = adapter; + pi->xact_addr_filt = -1; + pi->port_id = i; + netdev->irq = pdev->irq; + + netdev->hw_features = NETIF_F_SG | TSO_FLAGS | + NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | + NETIF_F_RXCSUM | NETIF_F_RXHASH | + NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX; + if (highdma) + netdev->hw_features |= NETIF_F_HIGHDMA; + netdev->features |= netdev->hw_features; + netdev->vlan_features = netdev->features & VLAN_FEAT; + + netdev->priv_flags |= IFF_UNICAST_FLT; + + netdev->netdev_ops = &cxgb4_netdev_ops; + netdev->ethtool_ops = &cxgb_ethtool_ops; + } + + pci_set_drvdata(pdev, adapter); + + if (adapter->flags & FW_OK) { + err = t4_port_init(adapter, func, func, 0); + if (err) + goto out_free_dev; + } + + /* + * Configure queues and allocate tables now, they can be needed as + * soon as the first register_netdev completes. + */ + cfg_queues(adapter); + + adapter->l2t = t4_init_l2t(); + if (!adapter->l2t) { + /* We tolerate a lack of L2T, giving up some functionality */ + dev_warn(&pdev->dev, "could not allocate L2T, continuing\n"); + adapter->params.offload = 0; + } + + if (is_offload(adapter) && tid_init(&adapter->tids) < 0) { + dev_warn(&pdev->dev, "could not allocate TID table, " + "continuing\n"); + adapter->params.offload = 0; + } + + /* See what interrupts we'll be using */ + if (msi > 1 && enable_msix(adapter) == 0) + adapter->flags |= USING_MSIX; + else if (msi > 0 && pci_enable_msi(pdev) == 0) + adapter->flags |= USING_MSI; + + err = init_rss(adapter); + if (err) + goto out_free_dev; + + /* + * The card is now ready to go. If any errors occur during device + * registration we do not fail the whole card but rather proceed only + * with the ports we manage to register successfully. However we must + * register at least one net device. + */ + for_each_port(adapter, i) { + pi = adap2pinfo(adapter, i); + netif_set_real_num_tx_queues(adapter->port[i], pi->nqsets); + netif_set_real_num_rx_queues(adapter->port[i], pi->nqsets); + + err = register_netdev(adapter->port[i]); + if (err) + break; + adapter->chan_map[pi->tx_chan] = i; + print_port_info(adapter->port[i]); + } + if (i == 0) { + dev_err(&pdev->dev, "could not register any net devices\n"); + goto out_free_dev; + } + if (err) { + dev_warn(&pdev->dev, "only %d net devices registered\n", i); + err = 0; + } + + if (cxgb4_debugfs_root) { + adapter->debugfs_root = debugfs_create_dir(pci_name(pdev), + cxgb4_debugfs_root); + setup_debugfs(adapter); + } + + /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ + pdev->needs_freset = 1; + + if (is_offload(adapter)) + attach_ulds(adapter); + +sriov: +#ifdef CONFIG_PCI_IOV + if (func < ARRAY_SIZE(num_vf) && num_vf[func] > 0) + if (pci_enable_sriov(pdev, num_vf[func]) == 0) + dev_info(&pdev->dev, + "instantiated %u virtual functions\n", + num_vf[func]); +#endif + return 0; + + out_free_dev: + free_some_resources(adapter); + out_unmap_bar: + if (!is_t4(adapter->params.chip)) + iounmap(adapter->bar2); + out_unmap_bar0: + iounmap(adapter->regs); + out_free_adapter: + kfree(adapter); + out_disable_device: + pci_disable_pcie_error_reporting(pdev); + pci_disable_device(pdev); + out_release_regions: + pci_release_regions(pdev); + return err; +} + +static void remove_one(struct pci_dev *pdev) +{ + struct adapter *adapter = pci_get_drvdata(pdev); + +#ifdef CONFIG_PCI_IOV + pci_disable_sriov(pdev); + +#endif + + if (adapter) { + int i; + + if (is_offload(adapter)) + detach_ulds(adapter); + + for_each_port(adapter, i) + if (adapter->port[i]->reg_state == NETREG_REGISTERED) + unregister_netdev(adapter->port[i]); + + if (adapter->debugfs_root) + debugfs_remove_recursive(adapter->debugfs_root); + + /* If we allocated filters, free up state associated with any + * valid filters ... + */ + if (adapter->tids.ftid_tab) { + struct filter_entry *f = &adapter->tids.ftid_tab[0]; + for (i = 0; i < (adapter->tids.nftids + + adapter->tids.nsftids); i++, f++) + if (f->valid) + clear_filter(adapter, f); + } + + if (adapter->flags & FULL_INIT_DONE) + cxgb_down(adapter); + + free_some_resources(adapter); + iounmap(adapter->regs); + if (!is_t4(adapter->params.chip)) + iounmap(adapter->bar2); + pci_disable_pcie_error_reporting(pdev); + if ((adapter->flags & DEV_ENABLED)) { + pci_disable_device(pdev); + adapter->flags &= ~DEV_ENABLED; + } + pci_release_regions(pdev); + synchronize_rcu(); + kfree(adapter); + } else + pci_release_regions(pdev); +} + +static struct pci_driver cxgb4_driver = { + .name = KBUILD_MODNAME, + .id_table = cxgb4_pci_tbl, + .probe = init_one, + .remove = remove_one, + .shutdown = remove_one, + .err_handler = &cxgb4_eeh, +}; + +static int __init cxgb4_init_module(void) +{ + int ret; + + workq = create_singlethread_workqueue("cxgb4"); + if (!workq) + return -ENOMEM; + + /* Debugfs support is optional, just warn if this fails */ + cxgb4_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL); + if (!cxgb4_debugfs_root) + pr_warn("could not create debugfs entry, continuing\n"); + + ret = pci_register_driver(&cxgb4_driver); + if (ret < 0) { + debugfs_remove(cxgb4_debugfs_root); + destroy_workqueue(workq); + } + + register_inet6addr_notifier(&cxgb4_inet6addr_notifier); + + return ret; +} + +static void __exit cxgb4_cleanup_module(void) +{ + unregister_inet6addr_notifier(&cxgb4_inet6addr_notifier); + pci_unregister_driver(&cxgb4_driver); + debugfs_remove(cxgb4_debugfs_root); /* NULL ok */ + flush_workqueue(workq); + destroy_workqueue(workq); +} + +module_init(cxgb4_init_module); +module_exit(cxgb4_cleanup_module); diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h new file mode 100644 index 00000000000..55e9daf7f9d --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h @@ -0,0 +1,295 @@ +/* + * This file is part of the Chelsio T4 Ethernet driver for Linux. + * + * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef __CXGB4_OFLD_H +#define __CXGB4_OFLD_H + +#include <linux/cache.h> +#include <linux/spinlock.h> +#include <linux/skbuff.h> +#include <linux/inetdevice.h> +#include <linux/atomic.h> + +/* CPL message priority levels */ +enum { + CPL_PRIORITY_DATA = 0, /* data messages */ + CPL_PRIORITY_SETUP = 1, /* connection setup messages */ + CPL_PRIORITY_TEARDOWN = 0, /* connection teardown messages */ + CPL_PRIORITY_LISTEN = 1, /* listen start/stop messages */ + CPL_PRIORITY_ACK = 1, /* RX ACK messages */ + CPL_PRIORITY_CONTROL = 1 /* control messages */ +}; + +#define INIT_TP_WR(w, tid) do { \ + (w)->wr.wr_hi = htonl(FW_WR_OP(FW_TP_WR) | \ + FW_WR_IMMDLEN(sizeof(*w) - sizeof(w->wr))); \ + (w)->wr.wr_mid = htonl(FW_WR_LEN16(DIV_ROUND_UP(sizeof(*w), 16)) | \ + FW_WR_FLOWID(tid)); \ + (w)->wr.wr_lo = cpu_to_be64(0); \ +} while (0) + +#define INIT_TP_WR_CPL(w, cpl, tid) do { \ + INIT_TP_WR(w, tid); \ + OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \ +} while (0) + +#define INIT_ULPTX_WR(w, wrlen, atomic, tid) do { \ + (w)->wr.wr_hi = htonl(FW_WR_OP(FW_ULPTX_WR) | FW_WR_ATOMIC(atomic)); \ + (w)->wr.wr_mid = htonl(FW_WR_LEN16(DIV_ROUND_UP(wrlen, 16)) | \ + FW_WR_FLOWID(tid)); \ + (w)->wr.wr_lo = cpu_to_be64(0); \ +} while (0) + +/* Special asynchronous notification message */ +#define CXGB4_MSG_AN ((void *)1) + +struct serv_entry { + void *data; +}; + +union aopen_entry { + void *data; + union aopen_entry *next; +}; + +/* + * Holds the size, base address, free list start, etc of the TID, server TID, + * and active-open TID tables. The tables themselves are allocated dynamically. + */ +struct tid_info { + void **tid_tab; + unsigned int ntids; + + struct serv_entry *stid_tab; + unsigned long *stid_bmap; + unsigned int nstids; + unsigned int stid_base; + + union aopen_entry *atid_tab; + unsigned int natids; + unsigned int atid_base; + + struct filter_entry *ftid_tab; + unsigned int nftids; + unsigned int ftid_base; + unsigned int aftid_base; + unsigned int aftid_end; + /* Server filter region */ + unsigned int sftid_base; + unsigned int nsftids; + + spinlock_t atid_lock ____cacheline_aligned_in_smp; + union aopen_entry *afree; + unsigned int atids_in_use; + + spinlock_t stid_lock; + unsigned int stids_in_use; + + atomic_t tids_in_use; +}; + +static inline void *lookup_tid(const struct tid_info *t, unsigned int tid) +{ + return tid < t->ntids ? t->tid_tab[tid] : NULL; +} + +static inline void *lookup_atid(const struct tid_info *t, unsigned int atid) +{ + return atid < t->natids ? t->atid_tab[atid].data : NULL; +} + +static inline void *lookup_stid(const struct tid_info *t, unsigned int stid) +{ + /* Is it a server filter TID? */ + if (t->nsftids && (stid >= t->sftid_base)) { + stid -= t->sftid_base; + stid += t->nstids; + } else { + stid -= t->stid_base; + } + + return stid < (t->nstids + t->nsftids) ? t->stid_tab[stid].data : NULL; +} + +static inline void cxgb4_insert_tid(struct tid_info *t, void *data, + unsigned int tid) +{ + t->tid_tab[tid] = data; + atomic_inc(&t->tids_in_use); +} + +int cxgb4_alloc_atid(struct tid_info *t, void *data); +int cxgb4_alloc_stid(struct tid_info *t, int family, void *data); +int cxgb4_alloc_sftid(struct tid_info *t, int family, void *data); +void cxgb4_free_atid(struct tid_info *t, unsigned int atid); +void cxgb4_free_stid(struct tid_info *t, unsigned int stid, int family); +void cxgb4_remove_tid(struct tid_info *t, unsigned int qid, unsigned int tid); + +struct in6_addr; + +int cxgb4_create_server(const struct net_device *dev, unsigned int stid, + __be32 sip, __be16 sport, __be16 vlan, + unsigned int queue); +int cxgb4_create_server6(const struct net_device *dev, unsigned int stid, + const struct in6_addr *sip, __be16 sport, + unsigned int queue); +int cxgb4_remove_server(const struct net_device *dev, unsigned int stid, + unsigned int queue, bool ipv6); +int cxgb4_create_server_filter(const struct net_device *dev, unsigned int stid, + __be32 sip, __be16 sport, __be16 vlan, + unsigned int queue, + unsigned char port, unsigned char mask); +int cxgb4_remove_server_filter(const struct net_device *dev, unsigned int stid, + unsigned int queue, bool ipv6); +static inline void set_wr_txq(struct sk_buff *skb, int prio, int queue) +{ + skb_set_queue_mapping(skb, (queue << 1) | prio); +} + +enum cxgb4_uld { + CXGB4_ULD_RDMA, + CXGB4_ULD_ISCSI, + CXGB4_ULD_MAX +}; + +enum cxgb4_state { + CXGB4_STATE_UP, + CXGB4_STATE_START_RECOVERY, + CXGB4_STATE_DOWN, + CXGB4_STATE_DETACH +}; + +enum cxgb4_control { + CXGB4_CONTROL_DB_FULL, + CXGB4_CONTROL_DB_EMPTY, + CXGB4_CONTROL_DB_DROP, +}; + +struct pci_dev; +struct l2t_data; +struct net_device; +struct pkt_gl; +struct tp_tcp_stats; + +struct cxgb4_range { + unsigned int start; + unsigned int size; +}; + +struct cxgb4_virt_res { /* virtualized HW resources */ + struct cxgb4_range ddp; + struct cxgb4_range iscsi; + struct cxgb4_range stag; + struct cxgb4_range rq; + struct cxgb4_range pbl; + struct cxgb4_range qp; + struct cxgb4_range cq; + struct cxgb4_range ocq; +}; + +#define OCQ_WIN_OFFSET(pdev, vres) \ + (pci_resource_len((pdev), 2) - roundup_pow_of_two((vres)->ocq.size)) + +/* + * Block of information the LLD provides to ULDs attaching to a device. + */ +struct cxgb4_lld_info { + struct pci_dev *pdev; /* associated PCI device */ + struct l2t_data *l2t; /* L2 table */ + struct tid_info *tids; /* TID table */ + struct net_device **ports; /* device ports */ + const struct cxgb4_virt_res *vr; /* assorted HW resources */ + const unsigned short *mtus; /* MTU table */ + const unsigned short *rxq_ids; /* the ULD's Rx queue ids */ + const unsigned short *ciq_ids; /* the ULD's concentrator IQ ids */ + unsigned short nrxq; /* # of Rx queues */ + unsigned short ntxq; /* # of Tx queues */ + unsigned short nciq; /* # of concentrator IQ */ + unsigned char nchan:4; /* # of channels */ + unsigned char nports:4; /* # of ports */ + unsigned char wr_cred; /* WR 16-byte credits */ + unsigned char adapter_type; /* type of adapter */ + unsigned char fw_api_ver; /* FW API version */ + unsigned int fw_vers; /* FW version */ + unsigned int iscsi_iolen; /* iSCSI max I/O length */ + unsigned short udb_density; /* # of user DB/page */ + unsigned short ucq_density; /* # of user CQs/page */ + unsigned short filt_mode; /* filter optional components */ + unsigned short tx_modq[NCHAN]; /* maps each tx channel to a */ + /* scheduler queue */ + void __iomem *gts_reg; /* address of GTS register */ + void __iomem *db_reg; /* address of kernel doorbell */ + int dbfifo_int_thresh; /* doorbell fifo int threshold */ + unsigned int sge_pktshift; /* Padding between CPL and */ + /* packet data */ + bool enable_fw_ofld_conn; /* Enable connection through fw */ + /* WR */ + bool ulptx_memwrite_dsgl; /* use of T5 DSGL allowed */ +}; + +struct cxgb4_uld_info { + const char *name; + void *(*add)(const struct cxgb4_lld_info *p); + int (*rx_handler)(void *handle, const __be64 *rsp, + const struct pkt_gl *gl); + int (*state_change)(void *handle, enum cxgb4_state new_state); + int (*control)(void *handle, enum cxgb4_control control, ...); +}; + +int cxgb4_register_uld(enum cxgb4_uld type, const struct cxgb4_uld_info *p); +int cxgb4_unregister_uld(enum cxgb4_uld type); +int cxgb4_ofld_send(struct net_device *dev, struct sk_buff *skb); +unsigned int cxgb4_dbfifo_count(const struct net_device *dev, int lpfifo); +unsigned int cxgb4_port_chan(const struct net_device *dev); +unsigned int cxgb4_port_viid(const struct net_device *dev); +unsigned int cxgb4_port_idx(const struct net_device *dev); +unsigned int cxgb4_best_mtu(const unsigned short *mtus, unsigned short mtu, + unsigned int *idx); +unsigned int cxgb4_best_aligned_mtu(const unsigned short *mtus, + unsigned short header_size, + unsigned short data_size_max, + unsigned short data_size_align, + unsigned int *mtu_idxp); +void cxgb4_get_tcp_stats(struct pci_dev *pdev, struct tp_tcp_stats *v4, + struct tp_tcp_stats *v6); +void cxgb4_iscsi_init(struct net_device *dev, unsigned int tag_mask, + const unsigned int *pgsz_order); +struct sk_buff *cxgb4_pktgl_to_skb(const struct pkt_gl *gl, + unsigned int skb_len, unsigned int pull_len); +int cxgb4_sync_txq_pidx(struct net_device *dev, u16 qid, u16 pidx, u16 size); +int cxgb4_flush_eq_cache(struct net_device *dev); +void cxgb4_disable_db_coalescing(struct net_device *dev); +void cxgb4_enable_db_coalescing(struct net_device *dev); + +#endif /* !__CXGB4_OFLD_H */ diff --git a/drivers/net/ethernet/chelsio/cxgb4/l2t.c b/drivers/net/ethernet/chelsio/cxgb4/l2t.c new file mode 100644 index 00000000000..8a96572fdde --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/l2t.c @@ -0,0 +1,665 @@ +/* + * This file is part of the Chelsio T4 Ethernet driver for Linux. + * + * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/skbuff.h> +#include <linux/netdevice.h> +#include <linux/if.h> +#include <linux/if_vlan.h> +#include <linux/jhash.h> +#include <linux/module.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> +#include <net/neighbour.h> +#include "cxgb4.h" +#include "l2t.h" +#include "t4_msg.h" +#include "t4fw_api.h" +#include "t4_regs.h" + +#define VLAN_NONE 0xfff + +/* identifies sync vs async L2T_WRITE_REQs */ +#define F_SYNC_WR (1 << 12) + +enum { + L2T_STATE_VALID, /* entry is up to date */ + L2T_STATE_STALE, /* entry may be used but needs revalidation */ + L2T_STATE_RESOLVING, /* entry needs address resolution */ + L2T_STATE_SYNC_WRITE, /* synchronous write of entry underway */ + + /* when state is one of the below the entry is not hashed */ + L2T_STATE_SWITCHING, /* entry is being used by a switching filter */ + L2T_STATE_UNUSED /* entry not in use */ +}; + +struct l2t_data { + rwlock_t lock; + atomic_t nfree; /* number of free entries */ + struct l2t_entry *rover; /* starting point for next allocation */ + struct l2t_entry l2tab[L2T_SIZE]; +}; + +static inline unsigned int vlan_prio(const struct l2t_entry *e) +{ + return e->vlan >> 13; +} + +static inline void l2t_hold(struct l2t_data *d, struct l2t_entry *e) +{ + if (atomic_add_return(1, &e->refcnt) == 1) /* 0 -> 1 transition */ + atomic_dec(&d->nfree); +} + +/* + * To avoid having to check address families we do not allow v4 and v6 + * neighbors to be on the same hash chain. We keep v4 entries in the first + * half of available hash buckets and v6 in the second. + */ +enum { + L2T_SZ_HALF = L2T_SIZE / 2, + L2T_HASH_MASK = L2T_SZ_HALF - 1 +}; + +static inline unsigned int arp_hash(const u32 *key, int ifindex) +{ + return jhash_2words(*key, ifindex, 0) & L2T_HASH_MASK; +} + +static inline unsigned int ipv6_hash(const u32 *key, int ifindex) +{ + u32 xor = key[0] ^ key[1] ^ key[2] ^ key[3]; + + return L2T_SZ_HALF + (jhash_2words(xor, ifindex, 0) & L2T_HASH_MASK); +} + +static unsigned int addr_hash(const u32 *addr, int addr_len, int ifindex) +{ + return addr_len == 4 ? arp_hash(addr, ifindex) : + ipv6_hash(addr, ifindex); +} + +/* + * Checks if an L2T entry is for the given IP/IPv6 address. It does not check + * whether the L2T entry and the address are of the same address family. + * Callers ensure an address is only checked against L2T entries of the same + * family, something made trivial by the separation of IP and IPv6 hash chains + * mentioned above. Returns 0 if there's a match, + */ +static int addreq(const struct l2t_entry *e, const u32 *addr) +{ + if (e->v6) + return (e->addr[0] ^ addr[0]) | (e->addr[1] ^ addr[1]) | + (e->addr[2] ^ addr[2]) | (e->addr[3] ^ addr[3]); + return e->addr[0] ^ addr[0]; +} + +static void neigh_replace(struct l2t_entry *e, struct neighbour *n) +{ + neigh_hold(n); + if (e->neigh) + neigh_release(e->neigh); + e->neigh = n; +} + +/* + * Write an L2T entry. Must be called with the entry locked. + * The write may be synchronous or asynchronous. + */ +static int write_l2e(struct adapter *adap, struct l2t_entry *e, int sync) +{ + struct sk_buff *skb; + struct cpl_l2t_write_req *req; + + skb = alloc_skb(sizeof(*req), GFP_ATOMIC); + if (!skb) + return -ENOMEM; + + req = (struct cpl_l2t_write_req *)__skb_put(skb, sizeof(*req)); + INIT_TP_WR(req, 0); + + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_L2T_WRITE_REQ, + e->idx | (sync ? F_SYNC_WR : 0) | + TID_QID(adap->sge.fw_evtq.abs_id))); + req->params = htons(L2T_W_PORT(e->lport) | L2T_W_NOREPLY(!sync)); + req->l2t_idx = htons(e->idx); + req->vlan = htons(e->vlan); + if (e->neigh && !(e->neigh->dev->flags & IFF_LOOPBACK)) + memcpy(e->dmac, e->neigh->ha, sizeof(e->dmac)); + memcpy(req->dst_mac, e->dmac, sizeof(req->dst_mac)); + + set_wr_txq(skb, CPL_PRIORITY_CONTROL, 0); + t4_ofld_send(adap, skb); + + if (sync && e->state != L2T_STATE_SWITCHING) + e->state = L2T_STATE_SYNC_WRITE; + return 0; +} + +/* + * Send packets waiting in an L2T entry's ARP queue. Must be called with the + * entry locked. + */ +static void send_pending(struct adapter *adap, struct l2t_entry *e) +{ + while (e->arpq_head) { + struct sk_buff *skb = e->arpq_head; + + e->arpq_head = skb->next; + skb->next = NULL; + t4_ofld_send(adap, skb); + } + e->arpq_tail = NULL; +} + +/* + * Process a CPL_L2T_WRITE_RPL. Wake up the ARP queue if it completes a + * synchronous L2T_WRITE. Note that the TID in the reply is really the L2T + * index it refers to. + */ +void do_l2t_write_rpl(struct adapter *adap, const struct cpl_l2t_write_rpl *rpl) +{ + unsigned int tid = GET_TID(rpl); + unsigned int idx = tid & (L2T_SIZE - 1); + + if (unlikely(rpl->status != CPL_ERR_NONE)) { + dev_err(adap->pdev_dev, + "Unexpected L2T_WRITE_RPL status %u for entry %u\n", + rpl->status, idx); + return; + } + + if (tid & F_SYNC_WR) { + struct l2t_entry *e = &adap->l2t->l2tab[idx]; + + spin_lock(&e->lock); + if (e->state != L2T_STATE_SWITCHING) { + send_pending(adap, e); + e->state = (e->neigh->nud_state & NUD_STALE) ? + L2T_STATE_STALE : L2T_STATE_VALID; + } + spin_unlock(&e->lock); + } +} + +/* + * Add a packet to an L2T entry's queue of packets awaiting resolution. + * Must be called with the entry's lock held. + */ +static inline void arpq_enqueue(struct l2t_entry *e, struct sk_buff *skb) +{ + skb->next = NULL; + if (e->arpq_head) + e->arpq_tail->next = skb; + else + e->arpq_head = skb; + e->arpq_tail = skb; +} + +int cxgb4_l2t_send(struct net_device *dev, struct sk_buff *skb, + struct l2t_entry *e) +{ + struct adapter *adap = netdev2adap(dev); + +again: + switch (e->state) { + case L2T_STATE_STALE: /* entry is stale, kick off revalidation */ + neigh_event_send(e->neigh, NULL); + spin_lock_bh(&e->lock); + if (e->state == L2T_STATE_STALE) + e->state = L2T_STATE_VALID; + spin_unlock_bh(&e->lock); + case L2T_STATE_VALID: /* fast-path, send the packet on */ + return t4_ofld_send(adap, skb); + case L2T_STATE_RESOLVING: + case L2T_STATE_SYNC_WRITE: + spin_lock_bh(&e->lock); + if (e->state != L2T_STATE_SYNC_WRITE && + e->state != L2T_STATE_RESOLVING) { + spin_unlock_bh(&e->lock); + goto again; + } + arpq_enqueue(e, skb); + spin_unlock_bh(&e->lock); + + if (e->state == L2T_STATE_RESOLVING && + !neigh_event_send(e->neigh, NULL)) { + spin_lock_bh(&e->lock); + if (e->state == L2T_STATE_RESOLVING && e->arpq_head) + write_l2e(adap, e, 1); + spin_unlock_bh(&e->lock); + } + } + return 0; +} +EXPORT_SYMBOL(cxgb4_l2t_send); + +/* + * Allocate a free L2T entry. Must be called with l2t_data.lock held. + */ +static struct l2t_entry *alloc_l2e(struct l2t_data *d) +{ + struct l2t_entry *end, *e, **p; + + if (!atomic_read(&d->nfree)) + return NULL; + + /* there's definitely a free entry */ + for (e = d->rover, end = &d->l2tab[L2T_SIZE]; e != end; ++e) + if (atomic_read(&e->refcnt) == 0) + goto found; + + for (e = d->l2tab; atomic_read(&e->refcnt); ++e) + ; +found: + d->rover = e + 1; + atomic_dec(&d->nfree); + + /* + * The entry we found may be an inactive entry that is + * presently in the hash table. We need to remove it. + */ + if (e->state < L2T_STATE_SWITCHING) + for (p = &d->l2tab[e->hash].first; *p; p = &(*p)->next) + if (*p == e) { + *p = e->next; + e->next = NULL; + break; + } + + e->state = L2T_STATE_UNUSED; + return e; +} + +/* + * Called when an L2T entry has no more users. + */ +static void t4_l2e_free(struct l2t_entry *e) +{ + struct l2t_data *d; + + spin_lock_bh(&e->lock); + if (atomic_read(&e->refcnt) == 0) { /* hasn't been recycled */ + if (e->neigh) { + neigh_release(e->neigh); + e->neigh = NULL; + } + while (e->arpq_head) { + struct sk_buff *skb = e->arpq_head; + + e->arpq_head = skb->next; + kfree_skb(skb); + } + e->arpq_tail = NULL; + } + spin_unlock_bh(&e->lock); + + d = container_of(e, struct l2t_data, l2tab[e->idx]); + atomic_inc(&d->nfree); +} + +void cxgb4_l2t_release(struct l2t_entry *e) +{ + if (atomic_dec_and_test(&e->refcnt)) + t4_l2e_free(e); +} +EXPORT_SYMBOL(cxgb4_l2t_release); + +/* + * Update an L2T entry that was previously used for the same next hop as neigh. + * Must be called with softirqs disabled. + */ +static void reuse_entry(struct l2t_entry *e, struct neighbour *neigh) +{ + unsigned int nud_state; + + spin_lock(&e->lock); /* avoid race with t4_l2t_free */ + if (neigh != e->neigh) + neigh_replace(e, neigh); + nud_state = neigh->nud_state; + if (memcmp(e->dmac, neigh->ha, sizeof(e->dmac)) || + !(nud_state & NUD_VALID)) + e->state = L2T_STATE_RESOLVING; + else if (nud_state & NUD_CONNECTED) + e->state = L2T_STATE_VALID; + else + e->state = L2T_STATE_STALE; + spin_unlock(&e->lock); +} + +struct l2t_entry *cxgb4_l2t_get(struct l2t_data *d, struct neighbour *neigh, + const struct net_device *physdev, + unsigned int priority) +{ + u8 lport; + u16 vlan; + struct l2t_entry *e; + int addr_len = neigh->tbl->key_len; + u32 *addr = (u32 *)neigh->primary_key; + int ifidx = neigh->dev->ifindex; + int hash = addr_hash(addr, addr_len, ifidx); + + if (neigh->dev->flags & IFF_LOOPBACK) + lport = netdev2pinfo(physdev)->tx_chan + 4; + else + lport = netdev2pinfo(physdev)->lport; + + if (neigh->dev->priv_flags & IFF_802_1Q_VLAN) + vlan = vlan_dev_vlan_id(neigh->dev); + else + vlan = VLAN_NONE; + + write_lock_bh(&d->lock); + for (e = d->l2tab[hash].first; e; e = e->next) + if (!addreq(e, addr) && e->ifindex == ifidx && + e->vlan == vlan && e->lport == lport) { + l2t_hold(d, e); + if (atomic_read(&e->refcnt) == 1) + reuse_entry(e, neigh); + goto done; + } + + /* Need to allocate a new entry */ + e = alloc_l2e(d); + if (e) { + spin_lock(&e->lock); /* avoid race with t4_l2t_free */ + e->state = L2T_STATE_RESOLVING; + if (neigh->dev->flags & IFF_LOOPBACK) + memcpy(e->dmac, physdev->dev_addr, sizeof(e->dmac)); + memcpy(e->addr, addr, addr_len); + e->ifindex = ifidx; + e->hash = hash; + e->lport = lport; + e->v6 = addr_len == 16; + atomic_set(&e->refcnt, 1); + neigh_replace(e, neigh); + e->vlan = vlan; + e->next = d->l2tab[hash].first; + d->l2tab[hash].first = e; + spin_unlock(&e->lock); + } +done: + write_unlock_bh(&d->lock); + return e; +} +EXPORT_SYMBOL(cxgb4_l2t_get); + +u64 cxgb4_select_ntuple(struct net_device *dev, + const struct l2t_entry *l2t) +{ + struct adapter *adap = netdev2adap(dev); + struct tp_params *tp = &adap->params.tp; + u64 ntuple = 0; + + /* Initialize each of the fields which we care about which are present + * in the Compressed Filter Tuple. + */ + if (tp->vlan_shift >= 0 && l2t->vlan != VLAN_NONE) + ntuple |= (u64)(F_FT_VLAN_VLD | l2t->vlan) << tp->vlan_shift; + + if (tp->port_shift >= 0) + ntuple |= (u64)l2t->lport << tp->port_shift; + + if (tp->protocol_shift >= 0) + ntuple |= (u64)IPPROTO_TCP << tp->protocol_shift; + + if (tp->vnic_shift >= 0) { + u32 viid = cxgb4_port_viid(dev); + u32 vf = FW_VIID_VIN_GET(viid); + u32 pf = FW_VIID_PFN_GET(viid); + u32 vld = FW_VIID_VIVLD_GET(viid); + + ntuple |= (u64)(V_FT_VNID_ID_VF(vf) | + V_FT_VNID_ID_PF(pf) | + V_FT_VNID_ID_VLD(vld)) << tp->vnic_shift; + } + + return ntuple; +} +EXPORT_SYMBOL(cxgb4_select_ntuple); + +/* + * Called when address resolution fails for an L2T entry to handle packets + * on the arpq head. If a packet specifies a failure handler it is invoked, + * otherwise the packet is sent to the device. + */ +static void handle_failed_resolution(struct adapter *adap, struct sk_buff *arpq) +{ + while (arpq) { + struct sk_buff *skb = arpq; + const struct l2t_skb_cb *cb = L2T_SKB_CB(skb); + + arpq = skb->next; + skb->next = NULL; + if (cb->arp_err_handler) + cb->arp_err_handler(cb->handle, skb); + else + t4_ofld_send(adap, skb); + } +} + +/* + * Called when the host's neighbor layer makes a change to some entry that is + * loaded into the HW L2 table. + */ +void t4_l2t_update(struct adapter *adap, struct neighbour *neigh) +{ + struct l2t_entry *e; + struct sk_buff *arpq = NULL; + struct l2t_data *d = adap->l2t; + int addr_len = neigh->tbl->key_len; + u32 *addr = (u32 *) neigh->primary_key; + int ifidx = neigh->dev->ifindex; + int hash = addr_hash(addr, addr_len, ifidx); + + read_lock_bh(&d->lock); + for (e = d->l2tab[hash].first; e; e = e->next) + if (!addreq(e, addr) && e->ifindex == ifidx) { + spin_lock(&e->lock); + if (atomic_read(&e->refcnt)) + goto found; + spin_unlock(&e->lock); + break; + } + read_unlock_bh(&d->lock); + return; + + found: + read_unlock(&d->lock); + + if (neigh != e->neigh) + neigh_replace(e, neigh); + + if (e->state == L2T_STATE_RESOLVING) { + if (neigh->nud_state & NUD_FAILED) { + arpq = e->arpq_head; + e->arpq_head = e->arpq_tail = NULL; + } else if ((neigh->nud_state & (NUD_CONNECTED | NUD_STALE)) && + e->arpq_head) { + write_l2e(adap, e, 1); + } + } else { + e->state = neigh->nud_state & NUD_CONNECTED ? + L2T_STATE_VALID : L2T_STATE_STALE; + if (memcmp(e->dmac, neigh->ha, sizeof(e->dmac))) + write_l2e(adap, e, 0); + } + + spin_unlock_bh(&e->lock); + + if (arpq) + handle_failed_resolution(adap, arpq); +} + +/* Allocate an L2T entry for use by a switching rule. Such need to be + * explicitly freed and while busy they are not on any hash chain, so normal + * address resolution updates do not see them. + */ +struct l2t_entry *t4_l2t_alloc_switching(struct l2t_data *d) +{ + struct l2t_entry *e; + + write_lock_bh(&d->lock); + e = alloc_l2e(d); + if (e) { + spin_lock(&e->lock); /* avoid race with t4_l2t_free */ + e->state = L2T_STATE_SWITCHING; + atomic_set(&e->refcnt, 1); + spin_unlock(&e->lock); + } + write_unlock_bh(&d->lock); + return e; +} + +/* Sets/updates the contents of a switching L2T entry that has been allocated + * with an earlier call to @t4_l2t_alloc_switching. + */ +int t4_l2t_set_switching(struct adapter *adap, struct l2t_entry *e, u16 vlan, + u8 port, u8 *eth_addr) +{ + e->vlan = vlan; + e->lport = port; + memcpy(e->dmac, eth_addr, ETH_ALEN); + return write_l2e(adap, e, 0); +} + +struct l2t_data *t4_init_l2t(void) +{ + int i; + struct l2t_data *d; + + d = t4_alloc_mem(sizeof(*d)); + if (!d) + return NULL; + + d->rover = d->l2tab; + atomic_set(&d->nfree, L2T_SIZE); + rwlock_init(&d->lock); + + for (i = 0; i < L2T_SIZE; ++i) { + d->l2tab[i].idx = i; + d->l2tab[i].state = L2T_STATE_UNUSED; + spin_lock_init(&d->l2tab[i].lock); + atomic_set(&d->l2tab[i].refcnt, 0); + } + return d; +} + +static inline void *l2t_get_idx(struct seq_file *seq, loff_t pos) +{ + struct l2t_entry *l2tab = seq->private; + + return pos >= L2T_SIZE ? NULL : &l2tab[pos]; +} + +static void *l2t_seq_start(struct seq_file *seq, loff_t *pos) +{ + return *pos ? l2t_get_idx(seq, *pos - 1) : SEQ_START_TOKEN; +} + +static void *l2t_seq_next(struct seq_file *seq, void *v, loff_t *pos) +{ + v = l2t_get_idx(seq, *pos); + if (v) + ++*pos; + return v; +} + +static void l2t_seq_stop(struct seq_file *seq, void *v) +{ +} + +static char l2e_state(const struct l2t_entry *e) +{ + switch (e->state) { + case L2T_STATE_VALID: return 'V'; + case L2T_STATE_STALE: return 'S'; + case L2T_STATE_SYNC_WRITE: return 'W'; + case L2T_STATE_RESOLVING: return e->arpq_head ? 'A' : 'R'; + case L2T_STATE_SWITCHING: return 'X'; + default: + return 'U'; + } +} + +static int l2t_seq_show(struct seq_file *seq, void *v) +{ + if (v == SEQ_START_TOKEN) + seq_puts(seq, " Idx IP address " + "Ethernet address VLAN/P LP State Users Port\n"); + else { + char ip[60]; + struct l2t_entry *e = v; + + spin_lock_bh(&e->lock); + if (e->state == L2T_STATE_SWITCHING) + ip[0] = '\0'; + else + sprintf(ip, e->v6 ? "%pI6c" : "%pI4", e->addr); + seq_printf(seq, "%4u %-25s %17pM %4d %u %2u %c %5u %s\n", + e->idx, ip, e->dmac, + e->vlan & VLAN_VID_MASK, vlan_prio(e), e->lport, + l2e_state(e), atomic_read(&e->refcnt), + e->neigh ? e->neigh->dev->name : ""); + spin_unlock_bh(&e->lock); + } + return 0; +} + +static const struct seq_operations l2t_seq_ops = { + .start = l2t_seq_start, + .next = l2t_seq_next, + .stop = l2t_seq_stop, + .show = l2t_seq_show +}; + +static int l2t_seq_open(struct inode *inode, struct file *file) +{ + int rc = seq_open(file, &l2t_seq_ops); + + if (!rc) { + struct adapter *adap = inode->i_private; + struct seq_file *seq = file->private_data; + + seq->private = adap->l2t->l2tab; + } + return rc; +} + +const struct file_operations t4_l2t_fops = { + .owner = THIS_MODULE, + .open = l2t_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; diff --git a/drivers/net/ethernet/chelsio/cxgb4/l2t.h b/drivers/net/ethernet/chelsio/cxgb4/l2t.h new file mode 100644 index 00000000000..85eb5c71358 --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/l2t.h @@ -0,0 +1,111 @@ +/* + * This file is part of the Chelsio T4 Ethernet driver for Linux. + * + * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef __CXGB4_L2T_H +#define __CXGB4_L2T_H + +#include <linux/spinlock.h> +#include <linux/if_ether.h> +#include <linux/atomic.h> + +struct adapter; +struct l2t_data; +struct neighbour; +struct net_device; +struct file_operations; +struct cpl_l2t_write_rpl; + +/* + * Each L2T entry plays multiple roles. First of all, it keeps state for the + * corresponding entry of the HW L2 table and maintains a queue of offload + * packets awaiting address resolution. Second, it is a node of a hash table + * chain, where the nodes of the chain are linked together through their next + * pointer. Finally, each node is a bucket of a hash table, pointing to the + * first element in its chain through its first pointer. + */ +struct l2t_entry { + u16 state; /* entry state */ + u16 idx; /* entry index */ + u32 addr[4]; /* next hop IP or IPv6 address */ + int ifindex; /* neighbor's net_device's ifindex */ + struct neighbour *neigh; /* associated neighbour */ + struct l2t_entry *first; /* start of hash chain */ + struct l2t_entry *next; /* next l2t_entry on chain */ + struct sk_buff *arpq_head; /* queue of packets awaiting resolution */ + struct sk_buff *arpq_tail; + spinlock_t lock; + atomic_t refcnt; /* entry reference count */ + u16 hash; /* hash bucket the entry is on */ + u16 vlan; /* VLAN TCI (id: bits 0-11, prio: 13-15 */ + u8 v6; /* whether entry is for IPv6 */ + u8 lport; /* associated offload logical interface */ + u8 dmac[ETH_ALEN]; /* neighbour's MAC address */ +}; + +typedef void (*arp_err_handler_t)(void *handle, struct sk_buff *skb); + +/* + * Callback stored in an skb to handle address resolution failure. + */ +struct l2t_skb_cb { + void *handle; + arp_err_handler_t arp_err_handler; +}; + +#define L2T_SKB_CB(skb) ((struct l2t_skb_cb *)(skb)->cb) + +static inline void t4_set_arp_err_handler(struct sk_buff *skb, void *handle, + arp_err_handler_t handler) +{ + L2T_SKB_CB(skb)->handle = handle; + L2T_SKB_CB(skb)->arp_err_handler = handler; +} + +void cxgb4_l2t_release(struct l2t_entry *e); +int cxgb4_l2t_send(struct net_device *dev, struct sk_buff *skb, + struct l2t_entry *e); +struct l2t_entry *cxgb4_l2t_get(struct l2t_data *d, struct neighbour *neigh, + const struct net_device *physdev, + unsigned int priority); +u64 cxgb4_select_ntuple(struct net_device *dev, + const struct l2t_entry *l2t); +void t4_l2t_update(struct adapter *adap, struct neighbour *neigh); +struct l2t_entry *t4_l2t_alloc_switching(struct l2t_data *d); +int t4_l2t_set_switching(struct adapter *adap, struct l2t_entry *e, u16 vlan, + u8 port, u8 *eth_addr); +struct l2t_data *t4_init_l2t(void); +void do_l2t_write_rpl(struct adapter *p, const struct cpl_l2t_write_rpl *rpl); + +extern const struct file_operations t4_l2t_fops; +#endif /* __CXGB4_L2T_H */ diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c new file mode 100644 index 00000000000..dd4355d248e --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c @@ -0,0 +1,2831 @@ +/* + * This file is part of the Chelsio T4 Ethernet driver for Linux. + * + * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/skbuff.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/if_vlan.h> +#include <linux/ip.h> +#include <linux/dma-mapping.h> +#include <linux/jiffies.h> +#include <linux/prefetch.h> +#include <linux/export.h> +#include <net/ipv6.h> +#include <net/tcp.h> +#include "cxgb4.h" +#include "t4_regs.h" +#include "t4_msg.h" +#include "t4fw_api.h" + +/* + * Rx buffer size. We use largish buffers if possible but settle for single + * pages under memory shortage. + */ +#if PAGE_SHIFT >= 16 +# define FL_PG_ORDER 0 +#else +# define FL_PG_ORDER (16 - PAGE_SHIFT) +#endif + +/* RX_PULL_LEN should be <= RX_COPY_THRES */ +#define RX_COPY_THRES 256 +#define RX_PULL_LEN 128 + +/* + * Main body length for sk_buffs used for Rx Ethernet packets with fragments. + * Should be >= RX_PULL_LEN but possibly bigger to give pskb_may_pull some room. + */ +#define RX_PKT_SKB_LEN 512 + +/* + * Max number of Tx descriptors we clean up at a time. Should be modest as + * freeing skbs isn't cheap and it happens while holding locks. We just need + * to free packets faster than they arrive, we eventually catch up and keep + * the amortized cost reasonable. Must be >= 2 * TXQ_STOP_THRES. + */ +#define MAX_TX_RECLAIM 16 + +/* + * Max number of Rx buffers we replenish at a time. Again keep this modest, + * allocating buffers isn't cheap either. + */ +#define MAX_RX_REFILL 16U + +/* + * Period of the Rx queue check timer. This timer is infrequent as it has + * something to do only when the system experiences severe memory shortage. + */ +#define RX_QCHECK_PERIOD (HZ / 2) + +/* + * Period of the Tx queue check timer. + */ +#define TX_QCHECK_PERIOD (HZ / 2) + +/* SGE Hung Ingress DMA Threshold Warning time (in Hz) and Warning Repeat Rate + * (in RX_QCHECK_PERIOD multiples). If we find one of the SGE Ingress DMA + * State Machines in the same state for this amount of time (in HZ) then we'll + * issue a warning about a potential hang. We'll repeat the warning as the + * SGE Ingress DMA Channel appears to be hung every N RX_QCHECK_PERIODs till + * the situation clears. If the situation clears, we'll note that as well. + */ +#define SGE_IDMA_WARN_THRESH (1 * HZ) +#define SGE_IDMA_WARN_REPEAT (20 * RX_QCHECK_PERIOD) + +/* + * Max number of Tx descriptors to be reclaimed by the Tx timer. + */ +#define MAX_TIMER_TX_RECLAIM 100 + +/* + * Timer index used when backing off due to memory shortage. + */ +#define NOMEM_TMR_IDX (SGE_NTIMERS - 1) + +/* + * An FL with <= FL_STARVE_THRES buffers is starving and a periodic timer will + * attempt to refill it. + */ +#define FL_STARVE_THRES 4 + +/* + * Suspend an Ethernet Tx queue with fewer available descriptors than this. + * This is the same as calc_tx_descs() for a TSO packet with + * nr_frags == MAX_SKB_FRAGS. + */ +#define ETHTXQ_STOP_THRES \ + (1 + DIV_ROUND_UP((3 * MAX_SKB_FRAGS) / 2 + (MAX_SKB_FRAGS & 1), 8)) + +/* + * Suspension threshold for non-Ethernet Tx queues. We require enough room + * for a full sized WR. + */ +#define TXQ_STOP_THRES (SGE_MAX_WR_LEN / sizeof(struct tx_desc)) + +/* + * Max Tx descriptor space we allow for an Ethernet packet to be inlined + * into a WR. + */ +#define MAX_IMM_TX_PKT_LEN 128 + +/* + * Max size of a WR sent through a control Tx queue. + */ +#define MAX_CTRL_WR_LEN SGE_MAX_WR_LEN + +struct tx_sw_desc { /* SW state per Tx descriptor */ + struct sk_buff *skb; + struct ulptx_sgl *sgl; +}; + +struct rx_sw_desc { /* SW state per Rx descriptor */ + struct page *page; + dma_addr_t dma_addr; +}; + +/* + * Rx buffer sizes for "useskbs" Free List buffers (one ingress packet pe skb + * buffer). We currently only support two sizes for 1500- and 9000-byte MTUs. + * We could easily support more but there doesn't seem to be much need for + * that ... + */ +#define FL_MTU_SMALL 1500 +#define FL_MTU_LARGE 9000 + +static inline unsigned int fl_mtu_bufsize(struct adapter *adapter, + unsigned int mtu) +{ + struct sge *s = &adapter->sge; + + return ALIGN(s->pktshift + ETH_HLEN + VLAN_HLEN + mtu, s->fl_align); +} + +#define FL_MTU_SMALL_BUFSIZE(adapter) fl_mtu_bufsize(adapter, FL_MTU_SMALL) +#define FL_MTU_LARGE_BUFSIZE(adapter) fl_mtu_bufsize(adapter, FL_MTU_LARGE) + +/* + * Bits 0..3 of rx_sw_desc.dma_addr have special meaning. The hardware uses + * these to specify the buffer size as an index into the SGE Free List Buffer + * Size register array. We also use bit 4, when the buffer has been unmapped + * for DMA, but this is of course never sent to the hardware and is only used + * to prevent double unmappings. All of the above requires that the Free List + * Buffers which we allocate have the bottom 5 bits free (0) -- i.e. are + * 32-byte or or a power of 2 greater in alignment. Since the SGE's minimal + * Free List Buffer alignment is 32 bytes, this works out for us ... + */ +enum { + RX_BUF_FLAGS = 0x1f, /* bottom five bits are special */ + RX_BUF_SIZE = 0x0f, /* bottom three bits are for buf sizes */ + RX_UNMAPPED_BUF = 0x10, /* buffer is not mapped */ + + /* + * XXX We shouldn't depend on being able to use these indices. + * XXX Especially when some other Master PF has initialized the + * XXX adapter or we use the Firmware Configuration File. We + * XXX should really search through the Host Buffer Size register + * XXX array for the appropriately sized buffer indices. + */ + RX_SMALL_PG_BUF = 0x0, /* small (PAGE_SIZE) page buffer */ + RX_LARGE_PG_BUF = 0x1, /* buffer large (FL_PG_ORDER) page buffer */ + + RX_SMALL_MTU_BUF = 0x2, /* small MTU buffer */ + RX_LARGE_MTU_BUF = 0x3, /* large MTU buffer */ +}; + +static inline dma_addr_t get_buf_addr(const struct rx_sw_desc *d) +{ + return d->dma_addr & ~(dma_addr_t)RX_BUF_FLAGS; +} + +static inline bool is_buf_mapped(const struct rx_sw_desc *d) +{ + return !(d->dma_addr & RX_UNMAPPED_BUF); +} + +/** + * txq_avail - return the number of available slots in a Tx queue + * @q: the Tx queue + * + * Returns the number of descriptors in a Tx queue available to write new + * packets. + */ +static inline unsigned int txq_avail(const struct sge_txq *q) +{ + return q->size - 1 - q->in_use; +} + +/** + * fl_cap - return the capacity of a free-buffer list + * @fl: the FL + * + * Returns the capacity of a free-buffer list. The capacity is less than + * the size because one descriptor needs to be left unpopulated, otherwise + * HW will think the FL is empty. + */ +static inline unsigned int fl_cap(const struct sge_fl *fl) +{ + return fl->size - 8; /* 1 descriptor = 8 buffers */ +} + +static inline bool fl_starving(const struct sge_fl *fl) +{ + return fl->avail - fl->pend_cred <= FL_STARVE_THRES; +} + +static int map_skb(struct device *dev, const struct sk_buff *skb, + dma_addr_t *addr) +{ + const skb_frag_t *fp, *end; + const struct skb_shared_info *si; + + *addr = dma_map_single(dev, skb->data, skb_headlen(skb), DMA_TO_DEVICE); + if (dma_mapping_error(dev, *addr)) + goto out_err; + + si = skb_shinfo(skb); + end = &si->frags[si->nr_frags]; + + for (fp = si->frags; fp < end; fp++) { + *++addr = skb_frag_dma_map(dev, fp, 0, skb_frag_size(fp), + DMA_TO_DEVICE); + if (dma_mapping_error(dev, *addr)) + goto unwind; + } + return 0; + +unwind: + while (fp-- > si->frags) + dma_unmap_page(dev, *--addr, skb_frag_size(fp), DMA_TO_DEVICE); + + dma_unmap_single(dev, addr[-1], skb_headlen(skb), DMA_TO_DEVICE); +out_err: + return -ENOMEM; +} + +#ifdef CONFIG_NEED_DMA_MAP_STATE +static void unmap_skb(struct device *dev, const struct sk_buff *skb, + const dma_addr_t *addr) +{ + const skb_frag_t *fp, *end; + const struct skb_shared_info *si; + + dma_unmap_single(dev, *addr++, skb_headlen(skb), DMA_TO_DEVICE); + + si = skb_shinfo(skb); + end = &si->frags[si->nr_frags]; + for (fp = si->frags; fp < end; fp++) + dma_unmap_page(dev, *addr++, skb_frag_size(fp), DMA_TO_DEVICE); +} + +/** + * deferred_unmap_destructor - unmap a packet when it is freed + * @skb: the packet + * + * This is the packet destructor used for Tx packets that need to remain + * mapped until they are freed rather than until their Tx descriptors are + * freed. + */ +static void deferred_unmap_destructor(struct sk_buff *skb) +{ + unmap_skb(skb->dev->dev.parent, skb, (dma_addr_t *)skb->head); +} +#endif + +static void unmap_sgl(struct device *dev, const struct sk_buff *skb, + const struct ulptx_sgl *sgl, const struct sge_txq *q) +{ + const struct ulptx_sge_pair *p; + unsigned int nfrags = skb_shinfo(skb)->nr_frags; + + if (likely(skb_headlen(skb))) + dma_unmap_single(dev, be64_to_cpu(sgl->addr0), ntohl(sgl->len0), + DMA_TO_DEVICE); + else { + dma_unmap_page(dev, be64_to_cpu(sgl->addr0), ntohl(sgl->len0), + DMA_TO_DEVICE); + nfrags--; + } + + /* + * the complexity below is because of the possibility of a wrap-around + * in the middle of an SGL + */ + for (p = sgl->sge; nfrags >= 2; nfrags -= 2) { + if (likely((u8 *)(p + 1) <= (u8 *)q->stat)) { +unmap: dma_unmap_page(dev, be64_to_cpu(p->addr[0]), + ntohl(p->len[0]), DMA_TO_DEVICE); + dma_unmap_page(dev, be64_to_cpu(p->addr[1]), + ntohl(p->len[1]), DMA_TO_DEVICE); + p++; + } else if ((u8 *)p == (u8 *)q->stat) { + p = (const struct ulptx_sge_pair *)q->desc; + goto unmap; + } else if ((u8 *)p + 8 == (u8 *)q->stat) { + const __be64 *addr = (const __be64 *)q->desc; + + dma_unmap_page(dev, be64_to_cpu(addr[0]), + ntohl(p->len[0]), DMA_TO_DEVICE); + dma_unmap_page(dev, be64_to_cpu(addr[1]), + ntohl(p->len[1]), DMA_TO_DEVICE); + p = (const struct ulptx_sge_pair *)&addr[2]; + } else { + const __be64 *addr = (const __be64 *)q->desc; + + dma_unmap_page(dev, be64_to_cpu(p->addr[0]), + ntohl(p->len[0]), DMA_TO_DEVICE); + dma_unmap_page(dev, be64_to_cpu(addr[0]), + ntohl(p->len[1]), DMA_TO_DEVICE); + p = (const struct ulptx_sge_pair *)&addr[1]; + } + } + if (nfrags) { + __be64 addr; + + if ((u8 *)p == (u8 *)q->stat) + p = (const struct ulptx_sge_pair *)q->desc; + addr = (u8 *)p + 16 <= (u8 *)q->stat ? p->addr[0] : + *(const __be64 *)q->desc; + dma_unmap_page(dev, be64_to_cpu(addr), ntohl(p->len[0]), + DMA_TO_DEVICE); + } +} + +/** + * free_tx_desc - reclaims Tx descriptors and their buffers + * @adapter: the adapter + * @q: the Tx queue to reclaim descriptors from + * @n: the number of descriptors to reclaim + * @unmap: whether the buffers should be unmapped for DMA + * + * Reclaims Tx descriptors from an SGE Tx queue and frees the associated + * Tx buffers. Called with the Tx queue lock held. + */ +static void free_tx_desc(struct adapter *adap, struct sge_txq *q, + unsigned int n, bool unmap) +{ + struct tx_sw_desc *d; + unsigned int cidx = q->cidx; + struct device *dev = adap->pdev_dev; + + d = &q->sdesc[cidx]; + while (n--) { + if (d->skb) { /* an SGL is present */ + if (unmap) + unmap_sgl(dev, d->skb, d->sgl, q); + dev_consume_skb_any(d->skb); + d->skb = NULL; + } + ++d; + if (++cidx == q->size) { + cidx = 0; + d = q->sdesc; + } + } + q->cidx = cidx; +} + +/* + * Return the number of reclaimable descriptors in a Tx queue. + */ +static inline int reclaimable(const struct sge_txq *q) +{ + int hw_cidx = ntohs(q->stat->cidx); + hw_cidx -= q->cidx; + return hw_cidx < 0 ? hw_cidx + q->size : hw_cidx; +} + +/** + * reclaim_completed_tx - reclaims completed Tx descriptors + * @adap: the adapter + * @q: the Tx queue to reclaim completed descriptors from + * @unmap: whether the buffers should be unmapped for DMA + * + * Reclaims Tx descriptors that the SGE has indicated it has processed, + * and frees the associated buffers if possible. Called with the Tx + * queue locked. + */ +static inline void reclaim_completed_tx(struct adapter *adap, struct sge_txq *q, + bool unmap) +{ + int avail = reclaimable(q); + + if (avail) { + /* + * Limit the amount of clean up work we do at a time to keep + * the Tx lock hold time O(1). + */ + if (avail > MAX_TX_RECLAIM) + avail = MAX_TX_RECLAIM; + + free_tx_desc(adap, q, avail, unmap); + q->in_use -= avail; + } +} + +static inline int get_buf_size(struct adapter *adapter, + const struct rx_sw_desc *d) +{ + struct sge *s = &adapter->sge; + unsigned int rx_buf_size_idx = d->dma_addr & RX_BUF_SIZE; + int buf_size; + + switch (rx_buf_size_idx) { + case RX_SMALL_PG_BUF: + buf_size = PAGE_SIZE; + break; + + case RX_LARGE_PG_BUF: + buf_size = PAGE_SIZE << s->fl_pg_order; + break; + + case RX_SMALL_MTU_BUF: + buf_size = FL_MTU_SMALL_BUFSIZE(adapter); + break; + + case RX_LARGE_MTU_BUF: + buf_size = FL_MTU_LARGE_BUFSIZE(adapter); + break; + + default: + BUG_ON(1); + } + + return buf_size; +} + +/** + * free_rx_bufs - free the Rx buffers on an SGE free list + * @adap: the adapter + * @q: the SGE free list to free buffers from + * @n: how many buffers to free + * + * Release the next @n buffers on an SGE free-buffer Rx queue. The + * buffers must be made inaccessible to HW before calling this function. + */ +static void free_rx_bufs(struct adapter *adap, struct sge_fl *q, int n) +{ + while (n--) { + struct rx_sw_desc *d = &q->sdesc[q->cidx]; + + if (is_buf_mapped(d)) + dma_unmap_page(adap->pdev_dev, get_buf_addr(d), + get_buf_size(adap, d), + PCI_DMA_FROMDEVICE); + put_page(d->page); + d->page = NULL; + if (++q->cidx == q->size) + q->cidx = 0; + q->avail--; + } +} + +/** + * unmap_rx_buf - unmap the current Rx buffer on an SGE free list + * @adap: the adapter + * @q: the SGE free list + * + * Unmap the current buffer on an SGE free-buffer Rx queue. The + * buffer must be made inaccessible to HW before calling this function. + * + * This is similar to @free_rx_bufs above but does not free the buffer. + * Do note that the FL still loses any further access to the buffer. + */ +static void unmap_rx_buf(struct adapter *adap, struct sge_fl *q) +{ + struct rx_sw_desc *d = &q->sdesc[q->cidx]; + + if (is_buf_mapped(d)) + dma_unmap_page(adap->pdev_dev, get_buf_addr(d), + get_buf_size(adap, d), PCI_DMA_FROMDEVICE); + d->page = NULL; + if (++q->cidx == q->size) + q->cidx = 0; + q->avail--; +} + +static inline void ring_fl_db(struct adapter *adap, struct sge_fl *q) +{ + u32 val; + if (q->pend_cred >= 8) { + val = PIDX(q->pend_cred / 8); + if (!is_t4(adap->params.chip)) + val |= DBTYPE(1); + wmb(); + t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL), DBPRIO(1) | + QID(q->cntxt_id) | val); + q->pend_cred &= 7; + } +} + +static inline void set_rx_sw_desc(struct rx_sw_desc *sd, struct page *pg, + dma_addr_t mapping) +{ + sd->page = pg; + sd->dma_addr = mapping; /* includes size low bits */ +} + +/** + * refill_fl - refill an SGE Rx buffer ring + * @adap: the adapter + * @q: the ring to refill + * @n: the number of new buffers to allocate + * @gfp: the gfp flags for the allocations + * + * (Re)populate an SGE free-buffer queue with up to @n new packet buffers, + * allocated with the supplied gfp flags. The caller must assure that + * @n does not exceed the queue's capacity. If afterwards the queue is + * found critically low mark it as starving in the bitmap of starving FLs. + * + * Returns the number of buffers allocated. + */ +static unsigned int refill_fl(struct adapter *adap, struct sge_fl *q, int n, + gfp_t gfp) +{ + struct sge *s = &adap->sge; + struct page *pg; + dma_addr_t mapping; + unsigned int cred = q->avail; + __be64 *d = &q->desc[q->pidx]; + struct rx_sw_desc *sd = &q->sdesc[q->pidx]; + + gfp |= __GFP_NOWARN | __GFP_COLD; + + if (s->fl_pg_order == 0) + goto alloc_small_pages; + + /* + * Prefer large buffers + */ + while (n) { + pg = alloc_pages(gfp | __GFP_COMP, s->fl_pg_order); + if (unlikely(!pg)) { + q->large_alloc_failed++; + break; /* fall back to single pages */ + } + + mapping = dma_map_page(adap->pdev_dev, pg, 0, + PAGE_SIZE << s->fl_pg_order, + PCI_DMA_FROMDEVICE); + if (unlikely(dma_mapping_error(adap->pdev_dev, mapping))) { + __free_pages(pg, s->fl_pg_order); + goto out; /* do not try small pages for this error */ + } + mapping |= RX_LARGE_PG_BUF; + *d++ = cpu_to_be64(mapping); + + set_rx_sw_desc(sd, pg, mapping); + sd++; + + q->avail++; + if (++q->pidx == q->size) { + q->pidx = 0; + sd = q->sdesc; + d = q->desc; + } + n--; + } + +alloc_small_pages: + while (n--) { + pg = __skb_alloc_page(gfp, NULL); + if (unlikely(!pg)) { + q->alloc_failed++; + break; + } + + mapping = dma_map_page(adap->pdev_dev, pg, 0, PAGE_SIZE, + PCI_DMA_FROMDEVICE); + if (unlikely(dma_mapping_error(adap->pdev_dev, mapping))) { + put_page(pg); + goto out; + } + *d++ = cpu_to_be64(mapping); + + set_rx_sw_desc(sd, pg, mapping); + sd++; + + q->avail++; + if (++q->pidx == q->size) { + q->pidx = 0; + sd = q->sdesc; + d = q->desc; + } + } + +out: cred = q->avail - cred; + q->pend_cred += cred; + ring_fl_db(adap, q); + + if (unlikely(fl_starving(q))) { + smp_wmb(); + set_bit(q->cntxt_id - adap->sge.egr_start, + adap->sge.starving_fl); + } + + return cred; +} + +static inline void __refill_fl(struct adapter *adap, struct sge_fl *fl) +{ + refill_fl(adap, fl, min(MAX_RX_REFILL, fl_cap(fl) - fl->avail), + GFP_ATOMIC); +} + +/** + * alloc_ring - allocate resources for an SGE descriptor ring + * @dev: the PCI device's core device + * @nelem: the number of descriptors + * @elem_size: the size of each descriptor + * @sw_size: the size of the SW state associated with each ring element + * @phys: the physical address of the allocated ring + * @metadata: address of the array holding the SW state for the ring + * @stat_size: extra space in HW ring for status information + * @node: preferred node for memory allocations + * + * Allocates resources for an SGE descriptor ring, such as Tx queues, + * free buffer lists, or response queues. Each SGE ring requires + * space for its HW descriptors plus, optionally, space for the SW state + * associated with each HW entry (the metadata). The function returns + * three values: the virtual address for the HW ring (the return value + * of the function), the bus address of the HW ring, and the address + * of the SW ring. + */ +static void *alloc_ring(struct device *dev, size_t nelem, size_t elem_size, + size_t sw_size, dma_addr_t *phys, void *metadata, + size_t stat_size, int node) +{ + size_t len = nelem * elem_size + stat_size; + void *s = NULL; + void *p = dma_alloc_coherent(dev, len, phys, GFP_KERNEL); + + if (!p) + return NULL; + if (sw_size) { + s = kzalloc_node(nelem * sw_size, GFP_KERNEL, node); + + if (!s) { + dma_free_coherent(dev, len, p, *phys); + return NULL; + } + } + if (metadata) + *(void **)metadata = s; + memset(p, 0, len); + return p; +} + +/** + * sgl_len - calculates the size of an SGL of the given capacity + * @n: the number of SGL entries + * + * Calculates the number of flits needed for a scatter/gather list that + * can hold the given number of entries. + */ +static inline unsigned int sgl_len(unsigned int n) +{ + n--; + return (3 * n) / 2 + (n & 1) + 2; +} + +/** + * flits_to_desc - returns the num of Tx descriptors for the given flits + * @n: the number of flits + * + * Returns the number of Tx descriptors needed for the supplied number + * of flits. + */ +static inline unsigned int flits_to_desc(unsigned int n) +{ + BUG_ON(n > SGE_MAX_WR_LEN / 8); + return DIV_ROUND_UP(n, 8); +} + +/** + * is_eth_imm - can an Ethernet packet be sent as immediate data? + * @skb: the packet + * + * Returns whether an Ethernet packet is small enough to fit as + * immediate data. Return value corresponds to headroom required. + */ +static inline int is_eth_imm(const struct sk_buff *skb) +{ + int hdrlen = skb_shinfo(skb)->gso_size ? + sizeof(struct cpl_tx_pkt_lso_core) : 0; + + hdrlen += sizeof(struct cpl_tx_pkt); + if (skb->len <= MAX_IMM_TX_PKT_LEN - hdrlen) + return hdrlen; + return 0; +} + +/** + * calc_tx_flits - calculate the number of flits for a packet Tx WR + * @skb: the packet + * + * Returns the number of flits needed for a Tx WR for the given Ethernet + * packet, including the needed WR and CPL headers. + */ +static inline unsigned int calc_tx_flits(const struct sk_buff *skb) +{ + unsigned int flits; + int hdrlen = is_eth_imm(skb); + + if (hdrlen) + return DIV_ROUND_UP(skb->len + hdrlen, sizeof(__be64)); + + flits = sgl_len(skb_shinfo(skb)->nr_frags + 1) + 4; + if (skb_shinfo(skb)->gso_size) + flits += 2; + return flits; +} + +/** + * calc_tx_descs - calculate the number of Tx descriptors for a packet + * @skb: the packet + * + * Returns the number of Tx descriptors needed for the given Ethernet + * packet, including the needed WR and CPL headers. + */ +static inline unsigned int calc_tx_descs(const struct sk_buff *skb) +{ + return flits_to_desc(calc_tx_flits(skb)); +} + +/** + * write_sgl - populate a scatter/gather list for a packet + * @skb: the packet + * @q: the Tx queue we are writing into + * @sgl: starting location for writing the SGL + * @end: points right after the end of the SGL + * @start: start offset into skb main-body data to include in the SGL + * @addr: the list of bus addresses for the SGL elements + * + * Generates a gather list for the buffers that make up a packet. + * The caller must provide adequate space for the SGL that will be written. + * The SGL includes all of the packet's page fragments and the data in its + * main body except for the first @start bytes. @sgl must be 16-byte + * aligned and within a Tx descriptor with available space. @end points + * right after the end of the SGL but does not account for any potential + * wrap around, i.e., @end > @sgl. + */ +static void write_sgl(const struct sk_buff *skb, struct sge_txq *q, + struct ulptx_sgl *sgl, u64 *end, unsigned int start, + const dma_addr_t *addr) +{ + unsigned int i, len; + struct ulptx_sge_pair *to; + const struct skb_shared_info *si = skb_shinfo(skb); + unsigned int nfrags = si->nr_frags; + struct ulptx_sge_pair buf[MAX_SKB_FRAGS / 2 + 1]; + + len = skb_headlen(skb) - start; + if (likely(len)) { + sgl->len0 = htonl(len); + sgl->addr0 = cpu_to_be64(addr[0] + start); + nfrags++; + } else { + sgl->len0 = htonl(skb_frag_size(&si->frags[0])); + sgl->addr0 = cpu_to_be64(addr[1]); + } + + sgl->cmd_nsge = htonl(ULPTX_CMD(ULP_TX_SC_DSGL) | ULPTX_NSGE(nfrags)); + if (likely(--nfrags == 0)) + return; + /* + * Most of the complexity below deals with the possibility we hit the + * end of the queue in the middle of writing the SGL. For this case + * only we create the SGL in a temporary buffer and then copy it. + */ + to = (u8 *)end > (u8 *)q->stat ? buf : sgl->sge; + + for (i = (nfrags != si->nr_frags); nfrags >= 2; nfrags -= 2, to++) { + to->len[0] = cpu_to_be32(skb_frag_size(&si->frags[i])); + to->len[1] = cpu_to_be32(skb_frag_size(&si->frags[++i])); + to->addr[0] = cpu_to_be64(addr[i]); + to->addr[1] = cpu_to_be64(addr[++i]); + } + if (nfrags) { + to->len[0] = cpu_to_be32(skb_frag_size(&si->frags[i])); + to->len[1] = cpu_to_be32(0); + to->addr[0] = cpu_to_be64(addr[i + 1]); + } + if (unlikely((u8 *)end > (u8 *)q->stat)) { + unsigned int part0 = (u8 *)q->stat - (u8 *)sgl->sge, part1; + + if (likely(part0)) + memcpy(sgl->sge, buf, part0); + part1 = (u8 *)end - (u8 *)q->stat; + memcpy(q->desc, (u8 *)buf + part0, part1); + end = (void *)q->desc + part1; + } + if ((uintptr_t)end & 8) /* 0-pad to multiple of 16 */ + *end = 0; +} + +/* This function copies 64 byte coalesced work request to + * memory mapped BAR2 space(user space writes). + * For coalesced WR SGE, fetches data from the FIFO instead of from Host. + */ +static void cxgb_pio_copy(u64 __iomem *dst, u64 *src) +{ + int count = 8; + + while (count) { + writeq(*src, dst); + src++; + dst++; + count--; + } +} + +/** + * ring_tx_db - check and potentially ring a Tx queue's doorbell + * @adap: the adapter + * @q: the Tx queue + * @n: number of new descriptors to give to HW + * + * Ring the doorbel for a Tx queue. + */ +static inline void ring_tx_db(struct adapter *adap, struct sge_txq *q, int n) +{ + unsigned int *wr, index; + unsigned long flags; + + wmb(); /* write descriptors before telling HW */ + spin_lock_irqsave(&q->db_lock, flags); + if (!q->db_disabled) { + if (is_t4(adap->params.chip)) { + t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL), + QID(q->cntxt_id) | PIDX(n)); + } else { + if (n == 1) { + index = q->pidx ? (q->pidx - 1) : (q->size - 1); + wr = (unsigned int *)&q->desc[index]; + cxgb_pio_copy((u64 __iomem *) + (adap->bar2 + q->udb + 64), + (u64 *)wr); + } else + writel(n, adap->bar2 + q->udb + 8); + wmb(); + } + } else + q->db_pidx_inc += n; + q->db_pidx = q->pidx; + spin_unlock_irqrestore(&q->db_lock, flags); +} + +/** + * inline_tx_skb - inline a packet's data into Tx descriptors + * @skb: the packet + * @q: the Tx queue where the packet will be inlined + * @pos: starting position in the Tx queue where to inline the packet + * + * Inline a packet's contents directly into Tx descriptors, starting at + * the given position within the Tx DMA ring. + * Most of the complexity of this operation is dealing with wrap arounds + * in the middle of the packet we want to inline. + */ +static void inline_tx_skb(const struct sk_buff *skb, const struct sge_txq *q, + void *pos) +{ + u64 *p; + int left = (void *)q->stat - pos; + + if (likely(skb->len <= left)) { + if (likely(!skb->data_len)) + skb_copy_from_linear_data(skb, pos, skb->len); + else + skb_copy_bits(skb, 0, pos, skb->len); + pos += skb->len; + } else { + skb_copy_bits(skb, 0, pos, left); + skb_copy_bits(skb, left, q->desc, skb->len - left); + pos = (void *)q->desc + (skb->len - left); + } + + /* 0-pad to multiple of 16 */ + p = PTR_ALIGN(pos, 8); + if ((uintptr_t)p & 8) + *p = 0; +} + +/* + * Figure out what HW csum a packet wants and return the appropriate control + * bits. + */ +static u64 hwcsum(const struct sk_buff *skb) +{ + int csum_type; + const struct iphdr *iph = ip_hdr(skb); + + if (iph->version == 4) { + if (iph->protocol == IPPROTO_TCP) + csum_type = TX_CSUM_TCPIP; + else if (iph->protocol == IPPROTO_UDP) + csum_type = TX_CSUM_UDPIP; + else { +nocsum: /* + * unknown protocol, disable HW csum + * and hope a bad packet is detected + */ + return TXPKT_L4CSUM_DIS; + } + } else { + /* + * this doesn't work with extension headers + */ + const struct ipv6hdr *ip6h = (const struct ipv6hdr *)iph; + + if (ip6h->nexthdr == IPPROTO_TCP) + csum_type = TX_CSUM_TCPIP6; + else if (ip6h->nexthdr == IPPROTO_UDP) + csum_type = TX_CSUM_UDPIP6; + else + goto nocsum; + } + + if (likely(csum_type >= TX_CSUM_TCPIP)) + return TXPKT_CSUM_TYPE(csum_type) | + TXPKT_IPHDR_LEN(skb_network_header_len(skb)) | + TXPKT_ETHHDR_LEN(skb_network_offset(skb) - ETH_HLEN); + else { + int start = skb_transport_offset(skb); + + return TXPKT_CSUM_TYPE(csum_type) | TXPKT_CSUM_START(start) | + TXPKT_CSUM_LOC(start + skb->csum_offset); + } +} + +static void eth_txq_stop(struct sge_eth_txq *q) +{ + netif_tx_stop_queue(q->txq); + q->q.stops++; +} + +static inline void txq_advance(struct sge_txq *q, unsigned int n) +{ + q->in_use += n; + q->pidx += n; + if (q->pidx >= q->size) + q->pidx -= q->size; +} + +/** + * t4_eth_xmit - add a packet to an Ethernet Tx queue + * @skb: the packet + * @dev: the egress net device + * + * Add a packet to an SGE Ethernet Tx queue. Runs with softirqs disabled. + */ +netdev_tx_t t4_eth_xmit(struct sk_buff *skb, struct net_device *dev) +{ + int len; + u32 wr_mid; + u64 cntrl, *end; + int qidx, credits; + unsigned int flits, ndesc; + struct adapter *adap; + struct sge_eth_txq *q; + const struct port_info *pi; + struct fw_eth_tx_pkt_wr *wr; + struct cpl_tx_pkt_core *cpl; + const struct skb_shared_info *ssi; + dma_addr_t addr[MAX_SKB_FRAGS + 1]; + bool immediate = false; + + /* + * The chip min packet length is 10 octets but play safe and reject + * anything shorter than an Ethernet header. + */ + if (unlikely(skb->len < ETH_HLEN)) { +out_free: dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + + pi = netdev_priv(dev); + adap = pi->adapter; + qidx = skb_get_queue_mapping(skb); + q = &adap->sge.ethtxq[qidx + pi->first_qset]; + + reclaim_completed_tx(adap, &q->q, true); + + flits = calc_tx_flits(skb); + ndesc = flits_to_desc(flits); + credits = txq_avail(&q->q) - ndesc; + + if (unlikely(credits < 0)) { + eth_txq_stop(q); + dev_err(adap->pdev_dev, + "%s: Tx ring %u full while queue awake!\n", + dev->name, qidx); + return NETDEV_TX_BUSY; + } + + if (is_eth_imm(skb)) + immediate = true; + + if (!immediate && + unlikely(map_skb(adap->pdev_dev, skb, addr) < 0)) { + q->mapping_err++; + goto out_free; + } + + wr_mid = FW_WR_LEN16(DIV_ROUND_UP(flits, 2)); + if (unlikely(credits < ETHTXQ_STOP_THRES)) { + eth_txq_stop(q); + wr_mid |= FW_WR_EQUEQ | FW_WR_EQUIQ; + } + + wr = (void *)&q->q.desc[q->q.pidx]; + wr->equiq_to_len16 = htonl(wr_mid); + wr->r3 = cpu_to_be64(0); + end = (u64 *)wr + flits; + + len = immediate ? skb->len : 0; + ssi = skb_shinfo(skb); + if (ssi->gso_size) { + struct cpl_tx_pkt_lso *lso = (void *)wr; + bool v6 = (ssi->gso_type & SKB_GSO_TCPV6) != 0; + int l3hdr_len = skb_network_header_len(skb); + int eth_xtra_len = skb_network_offset(skb) - ETH_HLEN; + + len += sizeof(*lso); + wr->op_immdlen = htonl(FW_WR_OP(FW_ETH_TX_PKT_WR) | + FW_WR_IMMDLEN(len)); + lso->c.lso_ctrl = htonl(LSO_OPCODE(CPL_TX_PKT_LSO) | + LSO_FIRST_SLICE | LSO_LAST_SLICE | + LSO_IPV6(v6) | + LSO_ETHHDR_LEN(eth_xtra_len / 4) | + LSO_IPHDR_LEN(l3hdr_len / 4) | + LSO_TCPHDR_LEN(tcp_hdr(skb)->doff)); + lso->c.ipid_ofst = htons(0); + lso->c.mss = htons(ssi->gso_size); + lso->c.seqno_offset = htonl(0); + lso->c.len = htonl(skb->len); + cpl = (void *)(lso + 1); + cntrl = TXPKT_CSUM_TYPE(v6 ? TX_CSUM_TCPIP6 : TX_CSUM_TCPIP) | + TXPKT_IPHDR_LEN(l3hdr_len) | + TXPKT_ETHHDR_LEN(eth_xtra_len); + q->tso++; + q->tx_cso += ssi->gso_segs; + } else { + len += sizeof(*cpl); + wr->op_immdlen = htonl(FW_WR_OP(FW_ETH_TX_PKT_WR) | + FW_WR_IMMDLEN(len)); + cpl = (void *)(wr + 1); + if (skb->ip_summed == CHECKSUM_PARTIAL) { + cntrl = hwcsum(skb) | TXPKT_IPCSUM_DIS; + q->tx_cso++; + } else + cntrl = TXPKT_L4CSUM_DIS | TXPKT_IPCSUM_DIS; + } + + if (vlan_tx_tag_present(skb)) { + q->vlan_ins++; + cntrl |= TXPKT_VLAN_VLD | TXPKT_VLAN(vlan_tx_tag_get(skb)); + } + + cpl->ctrl0 = htonl(TXPKT_OPCODE(CPL_TX_PKT_XT) | + TXPKT_INTF(pi->tx_chan) | TXPKT_PF(adap->fn)); + cpl->pack = htons(0); + cpl->len = htons(skb->len); + cpl->ctrl1 = cpu_to_be64(cntrl); + + if (immediate) { + inline_tx_skb(skb, &q->q, cpl + 1); + dev_consume_skb_any(skb); + } else { + int last_desc; + + write_sgl(skb, &q->q, (struct ulptx_sgl *)(cpl + 1), end, 0, + addr); + skb_orphan(skb); + + last_desc = q->q.pidx + ndesc - 1; + if (last_desc >= q->q.size) + last_desc -= q->q.size; + q->q.sdesc[last_desc].skb = skb; + q->q.sdesc[last_desc].sgl = (struct ulptx_sgl *)(cpl + 1); + } + + txq_advance(&q->q, ndesc); + + ring_tx_db(adap, &q->q, ndesc); + return NETDEV_TX_OK; +} + +/** + * reclaim_completed_tx_imm - reclaim completed control-queue Tx descs + * @q: the SGE control Tx queue + * + * This is a variant of reclaim_completed_tx() that is used for Tx queues + * that send only immediate data (presently just the control queues) and + * thus do not have any sk_buffs to release. + */ +static inline void reclaim_completed_tx_imm(struct sge_txq *q) +{ + int hw_cidx = ntohs(q->stat->cidx); + int reclaim = hw_cidx - q->cidx; + + if (reclaim < 0) + reclaim += q->size; + + q->in_use -= reclaim; + q->cidx = hw_cidx; +} + +/** + * is_imm - check whether a packet can be sent as immediate data + * @skb: the packet + * + * Returns true if a packet can be sent as a WR with immediate data. + */ +static inline int is_imm(const struct sk_buff *skb) +{ + return skb->len <= MAX_CTRL_WR_LEN; +} + +/** + * ctrlq_check_stop - check if a control queue is full and should stop + * @q: the queue + * @wr: most recent WR written to the queue + * + * Check if a control queue has become full and should be stopped. + * We clean up control queue descriptors very lazily, only when we are out. + * If the queue is still full after reclaiming any completed descriptors + * we suspend it and have the last WR wake it up. + */ +static void ctrlq_check_stop(struct sge_ctrl_txq *q, struct fw_wr_hdr *wr) +{ + reclaim_completed_tx_imm(&q->q); + if (unlikely(txq_avail(&q->q) < TXQ_STOP_THRES)) { + wr->lo |= htonl(FW_WR_EQUEQ | FW_WR_EQUIQ); + q->q.stops++; + q->full = 1; + } +} + +/** + * ctrl_xmit - send a packet through an SGE control Tx queue + * @q: the control queue + * @skb: the packet + * + * Send a packet through an SGE control Tx queue. Packets sent through + * a control queue must fit entirely as immediate data. + */ +static int ctrl_xmit(struct sge_ctrl_txq *q, struct sk_buff *skb) +{ + unsigned int ndesc; + struct fw_wr_hdr *wr; + + if (unlikely(!is_imm(skb))) { + WARN_ON(1); + dev_kfree_skb(skb); + return NET_XMIT_DROP; + } + + ndesc = DIV_ROUND_UP(skb->len, sizeof(struct tx_desc)); + spin_lock(&q->sendq.lock); + + if (unlikely(q->full)) { + skb->priority = ndesc; /* save for restart */ + __skb_queue_tail(&q->sendq, skb); + spin_unlock(&q->sendq.lock); + return NET_XMIT_CN; + } + + wr = (struct fw_wr_hdr *)&q->q.desc[q->q.pidx]; + inline_tx_skb(skb, &q->q, wr); + + txq_advance(&q->q, ndesc); + if (unlikely(txq_avail(&q->q) < TXQ_STOP_THRES)) + ctrlq_check_stop(q, wr); + + ring_tx_db(q->adap, &q->q, ndesc); + spin_unlock(&q->sendq.lock); + + kfree_skb(skb); + return NET_XMIT_SUCCESS; +} + +/** + * restart_ctrlq - restart a suspended control queue + * @data: the control queue to restart + * + * Resumes transmission on a suspended Tx control queue. + */ +static void restart_ctrlq(unsigned long data) +{ + struct sk_buff *skb; + unsigned int written = 0; + struct sge_ctrl_txq *q = (struct sge_ctrl_txq *)data; + + spin_lock(&q->sendq.lock); + reclaim_completed_tx_imm(&q->q); + BUG_ON(txq_avail(&q->q) < TXQ_STOP_THRES); /* q should be empty */ + + while ((skb = __skb_dequeue(&q->sendq)) != NULL) { + struct fw_wr_hdr *wr; + unsigned int ndesc = skb->priority; /* previously saved */ + + /* + * Write descriptors and free skbs outside the lock to limit + * wait times. q->full is still set so new skbs will be queued. + */ + spin_unlock(&q->sendq.lock); + + wr = (struct fw_wr_hdr *)&q->q.desc[q->q.pidx]; + inline_tx_skb(skb, &q->q, wr); + kfree_skb(skb); + + written += ndesc; + txq_advance(&q->q, ndesc); + if (unlikely(txq_avail(&q->q) < TXQ_STOP_THRES)) { + unsigned long old = q->q.stops; + + ctrlq_check_stop(q, wr); + if (q->q.stops != old) { /* suspended anew */ + spin_lock(&q->sendq.lock); + goto ringdb; + } + } + if (written > 16) { + ring_tx_db(q->adap, &q->q, written); + written = 0; + } + spin_lock(&q->sendq.lock); + } + q->full = 0; +ringdb: if (written) + ring_tx_db(q->adap, &q->q, written); + spin_unlock(&q->sendq.lock); +} + +/** + * t4_mgmt_tx - send a management message + * @adap: the adapter + * @skb: the packet containing the management message + * + * Send a management message through control queue 0. + */ +int t4_mgmt_tx(struct adapter *adap, struct sk_buff *skb) +{ + int ret; + + local_bh_disable(); + ret = ctrl_xmit(&adap->sge.ctrlq[0], skb); + local_bh_enable(); + return ret; +} + +/** + * is_ofld_imm - check whether a packet can be sent as immediate data + * @skb: the packet + * + * Returns true if a packet can be sent as an offload WR with immediate + * data. We currently use the same limit as for Ethernet packets. + */ +static inline int is_ofld_imm(const struct sk_buff *skb) +{ + return skb->len <= MAX_IMM_TX_PKT_LEN; +} + +/** + * calc_tx_flits_ofld - calculate # of flits for an offload packet + * @skb: the packet + * + * Returns the number of flits needed for the given offload packet. + * These packets are already fully constructed and no additional headers + * will be added. + */ +static inline unsigned int calc_tx_flits_ofld(const struct sk_buff *skb) +{ + unsigned int flits, cnt; + + if (is_ofld_imm(skb)) + return DIV_ROUND_UP(skb->len, 8); + + flits = skb_transport_offset(skb) / 8U; /* headers */ + cnt = skb_shinfo(skb)->nr_frags; + if (skb_tail_pointer(skb) != skb_transport_header(skb)) + cnt++; + return flits + sgl_len(cnt); +} + +/** + * txq_stop_maperr - stop a Tx queue due to I/O MMU exhaustion + * @adap: the adapter + * @q: the queue to stop + * + * Mark a Tx queue stopped due to I/O MMU exhaustion and resulting + * inability to map packets. A periodic timer attempts to restart + * queues so marked. + */ +static void txq_stop_maperr(struct sge_ofld_txq *q) +{ + q->mapping_err++; + q->q.stops++; + set_bit(q->q.cntxt_id - q->adap->sge.egr_start, + q->adap->sge.txq_maperr); +} + +/** + * ofldtxq_stop - stop an offload Tx queue that has become full + * @q: the queue to stop + * @skb: the packet causing the queue to become full + * + * Stops an offload Tx queue that has become full and modifies the packet + * being written to request a wakeup. + */ +static void ofldtxq_stop(struct sge_ofld_txq *q, struct sk_buff *skb) +{ + struct fw_wr_hdr *wr = (struct fw_wr_hdr *)skb->data; + + wr->lo |= htonl(FW_WR_EQUEQ | FW_WR_EQUIQ); + q->q.stops++; + q->full = 1; +} + +/** + * service_ofldq - restart a suspended offload queue + * @q: the offload queue + * + * Services an offload Tx queue by moving packets from its packet queue + * to the HW Tx ring. The function starts and ends with the queue locked. + */ +static void service_ofldq(struct sge_ofld_txq *q) +{ + u64 *pos; + int credits; + struct sk_buff *skb; + unsigned int written = 0; + unsigned int flits, ndesc; + + while ((skb = skb_peek(&q->sendq)) != NULL && !q->full) { + /* + * We drop the lock but leave skb on sendq, thus retaining + * exclusive access to the state of the queue. + */ + spin_unlock(&q->sendq.lock); + + reclaim_completed_tx(q->adap, &q->q, false); + + flits = skb->priority; /* previously saved */ + ndesc = flits_to_desc(flits); + credits = txq_avail(&q->q) - ndesc; + BUG_ON(credits < 0); + if (unlikely(credits < TXQ_STOP_THRES)) + ofldtxq_stop(q, skb); + + pos = (u64 *)&q->q.desc[q->q.pidx]; + if (is_ofld_imm(skb)) + inline_tx_skb(skb, &q->q, pos); + else if (map_skb(q->adap->pdev_dev, skb, + (dma_addr_t *)skb->head)) { + txq_stop_maperr(q); + spin_lock(&q->sendq.lock); + break; + } else { + int last_desc, hdr_len = skb_transport_offset(skb); + + memcpy(pos, skb->data, hdr_len); + write_sgl(skb, &q->q, (void *)pos + hdr_len, + pos + flits, hdr_len, + (dma_addr_t *)skb->head); +#ifdef CONFIG_NEED_DMA_MAP_STATE + skb->dev = q->adap->port[0]; + skb->destructor = deferred_unmap_destructor; +#endif + last_desc = q->q.pidx + ndesc - 1; + if (last_desc >= q->q.size) + last_desc -= q->q.size; + q->q.sdesc[last_desc].skb = skb; + } + + txq_advance(&q->q, ndesc); + written += ndesc; + if (unlikely(written > 32)) { + ring_tx_db(q->adap, &q->q, written); + written = 0; + } + + spin_lock(&q->sendq.lock); + __skb_unlink(skb, &q->sendq); + if (is_ofld_imm(skb)) + kfree_skb(skb); + } + if (likely(written)) + ring_tx_db(q->adap, &q->q, written); +} + +/** + * ofld_xmit - send a packet through an offload queue + * @q: the Tx offload queue + * @skb: the packet + * + * Send an offload packet through an SGE offload queue. + */ +static int ofld_xmit(struct sge_ofld_txq *q, struct sk_buff *skb) +{ + skb->priority = calc_tx_flits_ofld(skb); /* save for restart */ + spin_lock(&q->sendq.lock); + __skb_queue_tail(&q->sendq, skb); + if (q->sendq.qlen == 1) + service_ofldq(q); + spin_unlock(&q->sendq.lock); + return NET_XMIT_SUCCESS; +} + +/** + * restart_ofldq - restart a suspended offload queue + * @data: the offload queue to restart + * + * Resumes transmission on a suspended Tx offload queue. + */ +static void restart_ofldq(unsigned long data) +{ + struct sge_ofld_txq *q = (struct sge_ofld_txq *)data; + + spin_lock(&q->sendq.lock); + q->full = 0; /* the queue actually is completely empty now */ + service_ofldq(q); + spin_unlock(&q->sendq.lock); +} + +/** + * skb_txq - return the Tx queue an offload packet should use + * @skb: the packet + * + * Returns the Tx queue an offload packet should use as indicated by bits + * 1-15 in the packet's queue_mapping. + */ +static inline unsigned int skb_txq(const struct sk_buff *skb) +{ + return skb->queue_mapping >> 1; +} + +/** + * is_ctrl_pkt - return whether an offload packet is a control packet + * @skb: the packet + * + * Returns whether an offload packet should use an OFLD or a CTRL + * Tx queue as indicated by bit 0 in the packet's queue_mapping. + */ +static inline unsigned int is_ctrl_pkt(const struct sk_buff *skb) +{ + return skb->queue_mapping & 1; +} + +static inline int ofld_send(struct adapter *adap, struct sk_buff *skb) +{ + unsigned int idx = skb_txq(skb); + + if (unlikely(is_ctrl_pkt(skb))) { + /* Single ctrl queue is a requirement for LE workaround path */ + if (adap->tids.nsftids) + idx = 0; + return ctrl_xmit(&adap->sge.ctrlq[idx], skb); + } + return ofld_xmit(&adap->sge.ofldtxq[idx], skb); +} + +/** + * t4_ofld_send - send an offload packet + * @adap: the adapter + * @skb: the packet + * + * Sends an offload packet. We use the packet queue_mapping to select the + * appropriate Tx queue as follows: bit 0 indicates whether the packet + * should be sent as regular or control, bits 1-15 select the queue. + */ +int t4_ofld_send(struct adapter *adap, struct sk_buff *skb) +{ + int ret; + + local_bh_disable(); + ret = ofld_send(adap, skb); + local_bh_enable(); + return ret; +} + +/** + * cxgb4_ofld_send - send an offload packet + * @dev: the net device + * @skb: the packet + * + * Sends an offload packet. This is an exported version of @t4_ofld_send, + * intended for ULDs. + */ +int cxgb4_ofld_send(struct net_device *dev, struct sk_buff *skb) +{ + return t4_ofld_send(netdev2adap(dev), skb); +} +EXPORT_SYMBOL(cxgb4_ofld_send); + +static inline void copy_frags(struct sk_buff *skb, + const struct pkt_gl *gl, unsigned int offset) +{ + int i; + + /* usually there's just one frag */ + __skb_fill_page_desc(skb, 0, gl->frags[0].page, + gl->frags[0].offset + offset, + gl->frags[0].size - offset); + skb_shinfo(skb)->nr_frags = gl->nfrags; + for (i = 1; i < gl->nfrags; i++) + __skb_fill_page_desc(skb, i, gl->frags[i].page, + gl->frags[i].offset, + gl->frags[i].size); + + /* get a reference to the last page, we don't own it */ + get_page(gl->frags[gl->nfrags - 1].page); +} + +/** + * cxgb4_pktgl_to_skb - build an sk_buff from a packet gather list + * @gl: the gather list + * @skb_len: size of sk_buff main body if it carries fragments + * @pull_len: amount of data to move to the sk_buff's main body + * + * Builds an sk_buff from the given packet gather list. Returns the + * sk_buff or %NULL if sk_buff allocation failed. + */ +struct sk_buff *cxgb4_pktgl_to_skb(const struct pkt_gl *gl, + unsigned int skb_len, unsigned int pull_len) +{ + struct sk_buff *skb; + + /* + * Below we rely on RX_COPY_THRES being less than the smallest Rx buffer + * size, which is expected since buffers are at least PAGE_SIZEd. + * In this case packets up to RX_COPY_THRES have only one fragment. + */ + if (gl->tot_len <= RX_COPY_THRES) { + skb = dev_alloc_skb(gl->tot_len); + if (unlikely(!skb)) + goto out; + __skb_put(skb, gl->tot_len); + skb_copy_to_linear_data(skb, gl->va, gl->tot_len); + } else { + skb = dev_alloc_skb(skb_len); + if (unlikely(!skb)) + goto out; + __skb_put(skb, pull_len); + skb_copy_to_linear_data(skb, gl->va, pull_len); + + copy_frags(skb, gl, pull_len); + skb->len = gl->tot_len; + skb->data_len = skb->len - pull_len; + skb->truesize += skb->data_len; + } +out: return skb; +} +EXPORT_SYMBOL(cxgb4_pktgl_to_skb); + +/** + * t4_pktgl_free - free a packet gather list + * @gl: the gather list + * + * Releases the pages of a packet gather list. We do not own the last + * page on the list and do not free it. + */ +static void t4_pktgl_free(const struct pkt_gl *gl) +{ + int n; + const struct page_frag *p; + + for (p = gl->frags, n = gl->nfrags - 1; n--; p++) + put_page(p->page); +} + +/* + * Process an MPS trace packet. Give it an unused protocol number so it won't + * be delivered to anyone and send it to the stack for capture. + */ +static noinline int handle_trace_pkt(struct adapter *adap, + const struct pkt_gl *gl) +{ + struct sk_buff *skb; + + skb = cxgb4_pktgl_to_skb(gl, RX_PULL_LEN, RX_PULL_LEN); + if (unlikely(!skb)) { + t4_pktgl_free(gl); + return 0; + } + + if (is_t4(adap->params.chip)) + __skb_pull(skb, sizeof(struct cpl_trace_pkt)); + else + __skb_pull(skb, sizeof(struct cpl_t5_trace_pkt)); + + skb_reset_mac_header(skb); + skb->protocol = htons(0xffff); + skb->dev = adap->port[0]; + netif_receive_skb(skb); + return 0; +} + +static void do_gro(struct sge_eth_rxq *rxq, const struct pkt_gl *gl, + const struct cpl_rx_pkt *pkt) +{ + struct adapter *adapter = rxq->rspq.adap; + struct sge *s = &adapter->sge; + int ret; + struct sk_buff *skb; + + skb = napi_get_frags(&rxq->rspq.napi); + if (unlikely(!skb)) { + t4_pktgl_free(gl); + rxq->stats.rx_drops++; + return; + } + + copy_frags(skb, gl, s->pktshift); + skb->len = gl->tot_len - s->pktshift; + skb->data_len = skb->len; + skb->truesize += skb->data_len; + skb->ip_summed = CHECKSUM_UNNECESSARY; + skb_record_rx_queue(skb, rxq->rspq.idx); + if (rxq->rspq.netdev->features & NETIF_F_RXHASH) + skb_set_hash(skb, (__force u32)pkt->rsshdr.hash_val, + PKT_HASH_TYPE_L3); + + if (unlikely(pkt->vlan_ex)) { + __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), ntohs(pkt->vlan)); + rxq->stats.vlan_ex++; + } + ret = napi_gro_frags(&rxq->rspq.napi); + if (ret == GRO_HELD) + rxq->stats.lro_pkts++; + else if (ret == GRO_MERGED || ret == GRO_MERGED_FREE) + rxq->stats.lro_merged++; + rxq->stats.pkts++; + rxq->stats.rx_cso++; +} + +/** + * t4_ethrx_handler - process an ingress ethernet packet + * @q: the response queue that received the packet + * @rsp: the response queue descriptor holding the RX_PKT message + * @si: the gather list of packet fragments + * + * Process an ingress ethernet packet and deliver it to the stack. + */ +int t4_ethrx_handler(struct sge_rspq *q, const __be64 *rsp, + const struct pkt_gl *si) +{ + bool csum_ok; + struct sk_buff *skb; + const struct cpl_rx_pkt *pkt; + struct sge_eth_rxq *rxq = container_of(q, struct sge_eth_rxq, rspq); + struct sge *s = &q->adap->sge; + int cpl_trace_pkt = is_t4(q->adap->params.chip) ? + CPL_TRACE_PKT : CPL_TRACE_PKT_T5; + + if (unlikely(*(u8 *)rsp == cpl_trace_pkt)) + return handle_trace_pkt(q->adap, si); + + pkt = (const struct cpl_rx_pkt *)rsp; + csum_ok = pkt->csum_calc && !pkt->err_vec && + (q->netdev->features & NETIF_F_RXCSUM); + if ((pkt->l2info & htonl(RXF_TCP)) && + (q->netdev->features & NETIF_F_GRO) && csum_ok && !pkt->ip_frag) { + do_gro(rxq, si, pkt); + return 0; + } + + skb = cxgb4_pktgl_to_skb(si, RX_PKT_SKB_LEN, RX_PULL_LEN); + if (unlikely(!skb)) { + t4_pktgl_free(si); + rxq->stats.rx_drops++; + return 0; + } + + __skb_pull(skb, s->pktshift); /* remove ethernet header padding */ + skb->protocol = eth_type_trans(skb, q->netdev); + skb_record_rx_queue(skb, q->idx); + if (skb->dev->features & NETIF_F_RXHASH) + skb_set_hash(skb, (__force u32)pkt->rsshdr.hash_val, + PKT_HASH_TYPE_L3); + + rxq->stats.pkts++; + + if (csum_ok && (pkt->l2info & htonl(RXF_UDP | RXF_TCP))) { + if (!pkt->ip_frag) { + skb->ip_summed = CHECKSUM_UNNECESSARY; + rxq->stats.rx_cso++; + } else if (pkt->l2info & htonl(RXF_IP)) { + __sum16 c = (__force __sum16)pkt->csum; + skb->csum = csum_unfold(c); + skb->ip_summed = CHECKSUM_COMPLETE; + rxq->stats.rx_cso++; + } + } else + skb_checksum_none_assert(skb); + + if (unlikely(pkt->vlan_ex)) { + __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), ntohs(pkt->vlan)); + rxq->stats.vlan_ex++; + } + netif_receive_skb(skb); + return 0; +} + +/** + * restore_rx_bufs - put back a packet's Rx buffers + * @si: the packet gather list + * @q: the SGE free list + * @frags: number of FL buffers to restore + * + * Puts back on an FL the Rx buffers associated with @si. The buffers + * have already been unmapped and are left unmapped, we mark them so to + * prevent further unmapping attempts. + * + * This function undoes a series of @unmap_rx_buf calls when we find out + * that the current packet can't be processed right away afterall and we + * need to come back to it later. This is a very rare event and there's + * no effort to make this particularly efficient. + */ +static void restore_rx_bufs(const struct pkt_gl *si, struct sge_fl *q, + int frags) +{ + struct rx_sw_desc *d; + + while (frags--) { + if (q->cidx == 0) + q->cidx = q->size - 1; + else + q->cidx--; + d = &q->sdesc[q->cidx]; + d->page = si->frags[frags].page; + d->dma_addr |= RX_UNMAPPED_BUF; + q->avail++; + } +} + +/** + * is_new_response - check if a response is newly written + * @r: the response descriptor + * @q: the response queue + * + * Returns true if a response descriptor contains a yet unprocessed + * response. + */ +static inline bool is_new_response(const struct rsp_ctrl *r, + const struct sge_rspq *q) +{ + return RSPD_GEN(r->type_gen) == q->gen; +} + +/** + * rspq_next - advance to the next entry in a response queue + * @q: the queue + * + * Updates the state of a response queue to advance it to the next entry. + */ +static inline void rspq_next(struct sge_rspq *q) +{ + q->cur_desc = (void *)q->cur_desc + q->iqe_len; + if (unlikely(++q->cidx == q->size)) { + q->cidx = 0; + q->gen ^= 1; + q->cur_desc = q->desc; + } +} + +/** + * process_responses - process responses from an SGE response queue + * @q: the ingress queue to process + * @budget: how many responses can be processed in this round + * + * Process responses from an SGE response queue up to the supplied budget. + * Responses include received packets as well as control messages from FW + * or HW. + * + * Additionally choose the interrupt holdoff time for the next interrupt + * on this queue. If the system is under memory shortage use a fairly + * long delay to help recovery. + */ +static int process_responses(struct sge_rspq *q, int budget) +{ + int ret, rsp_type; + int budget_left = budget; + const struct rsp_ctrl *rc; + struct sge_eth_rxq *rxq = container_of(q, struct sge_eth_rxq, rspq); + struct adapter *adapter = q->adap; + struct sge *s = &adapter->sge; + + while (likely(budget_left)) { + rc = (void *)q->cur_desc + (q->iqe_len - sizeof(*rc)); + if (!is_new_response(rc, q)) + break; + + rmb(); + rsp_type = RSPD_TYPE(rc->type_gen); + if (likely(rsp_type == RSP_TYPE_FLBUF)) { + struct page_frag *fp; + struct pkt_gl si; + const struct rx_sw_desc *rsd; + u32 len = ntohl(rc->pldbuflen_qid), bufsz, frags; + + if (len & RSPD_NEWBUF) { + if (likely(q->offset > 0)) { + free_rx_bufs(q->adap, &rxq->fl, 1); + q->offset = 0; + } + len = RSPD_LEN(len); + } + si.tot_len = len; + + /* gather packet fragments */ + for (frags = 0, fp = si.frags; ; frags++, fp++) { + rsd = &rxq->fl.sdesc[rxq->fl.cidx]; + bufsz = get_buf_size(adapter, rsd); + fp->page = rsd->page; + fp->offset = q->offset; + fp->size = min(bufsz, len); + len -= fp->size; + if (!len) + break; + unmap_rx_buf(q->adap, &rxq->fl); + } + + /* + * Last buffer remains mapped so explicitly make it + * coherent for CPU access. + */ + dma_sync_single_for_cpu(q->adap->pdev_dev, + get_buf_addr(rsd), + fp->size, DMA_FROM_DEVICE); + + si.va = page_address(si.frags[0].page) + + si.frags[0].offset; + prefetch(si.va); + + si.nfrags = frags + 1; + ret = q->handler(q, q->cur_desc, &si); + if (likely(ret == 0)) + q->offset += ALIGN(fp->size, s->fl_align); + else + restore_rx_bufs(&si, &rxq->fl, frags); + } else if (likely(rsp_type == RSP_TYPE_CPL)) { + ret = q->handler(q, q->cur_desc, NULL); + } else { + ret = q->handler(q, (const __be64 *)rc, CXGB4_MSG_AN); + } + + if (unlikely(ret)) { + /* couldn't process descriptor, back off for recovery */ + q->next_intr_params = QINTR_TIMER_IDX(NOMEM_TMR_IDX); + break; + } + + rspq_next(q); + budget_left--; + } + + if (q->offset >= 0 && rxq->fl.size - rxq->fl.avail >= 16) + __refill_fl(q->adap, &rxq->fl); + return budget - budget_left; +} + +/** + * napi_rx_handler - the NAPI handler for Rx processing + * @napi: the napi instance + * @budget: how many packets we can process in this round + * + * Handler for new data events when using NAPI. This does not need any + * locking or protection from interrupts as data interrupts are off at + * this point and other adapter interrupts do not interfere (the latter + * in not a concern at all with MSI-X as non-data interrupts then have + * a separate handler). + */ +static int napi_rx_handler(struct napi_struct *napi, int budget) +{ + unsigned int params; + struct sge_rspq *q = container_of(napi, struct sge_rspq, napi); + int work_done = process_responses(q, budget); + + if (likely(work_done < budget)) { + napi_complete(napi); + params = q->next_intr_params; + q->next_intr_params = q->intr_params; + } else + params = QINTR_TIMER_IDX(7); + + t4_write_reg(q->adap, MYPF_REG(SGE_PF_GTS), CIDXINC(work_done) | + INGRESSQID((u32)q->cntxt_id) | SEINTARM(params)); + return work_done; +} + +/* + * The MSI-X interrupt handler for an SGE response queue. + */ +irqreturn_t t4_sge_intr_msix(int irq, void *cookie) +{ + struct sge_rspq *q = cookie; + + napi_schedule(&q->napi); + return IRQ_HANDLED; +} + +/* + * Process the indirect interrupt entries in the interrupt queue and kick off + * NAPI for each queue that has generated an entry. + */ +static unsigned int process_intrq(struct adapter *adap) +{ + unsigned int credits; + const struct rsp_ctrl *rc; + struct sge_rspq *q = &adap->sge.intrq; + + spin_lock(&adap->sge.intrq_lock); + for (credits = 0; ; credits++) { + rc = (void *)q->cur_desc + (q->iqe_len - sizeof(*rc)); + if (!is_new_response(rc, q)) + break; + + rmb(); + if (RSPD_TYPE(rc->type_gen) == RSP_TYPE_INTR) { + unsigned int qid = ntohl(rc->pldbuflen_qid); + + qid -= adap->sge.ingr_start; + napi_schedule(&adap->sge.ingr_map[qid]->napi); + } + + rspq_next(q); + } + + t4_write_reg(adap, MYPF_REG(SGE_PF_GTS), CIDXINC(credits) | + INGRESSQID(q->cntxt_id) | SEINTARM(q->intr_params)); + spin_unlock(&adap->sge.intrq_lock); + return credits; +} + +/* + * The MSI interrupt handler, which handles data events from SGE response queues + * as well as error and other async events as they all use the same MSI vector. + */ +static irqreturn_t t4_intr_msi(int irq, void *cookie) +{ + struct adapter *adap = cookie; + + t4_slow_intr_handler(adap); + process_intrq(adap); + return IRQ_HANDLED; +} + +/* + * Interrupt handler for legacy INTx interrupts. + * Handles data events from SGE response queues as well as error and other + * async events as they all use the same interrupt line. + */ +static irqreturn_t t4_intr_intx(int irq, void *cookie) +{ + struct adapter *adap = cookie; + + t4_write_reg(adap, MYPF_REG(PCIE_PF_CLI), 0); + if (t4_slow_intr_handler(adap) | process_intrq(adap)) + return IRQ_HANDLED; + return IRQ_NONE; /* probably shared interrupt */ +} + +/** + * t4_intr_handler - select the top-level interrupt handler + * @adap: the adapter + * + * Selects the top-level interrupt handler based on the type of interrupts + * (MSI-X, MSI, or INTx). + */ +irq_handler_t t4_intr_handler(struct adapter *adap) +{ + if (adap->flags & USING_MSIX) + return t4_sge_intr_msix; + if (adap->flags & USING_MSI) + return t4_intr_msi; + return t4_intr_intx; +} + +static void sge_rx_timer_cb(unsigned long data) +{ + unsigned long m; + unsigned int i, idma_same_state_cnt[2]; + struct adapter *adap = (struct adapter *)data; + struct sge *s = &adap->sge; + + for (i = 0; i < ARRAY_SIZE(s->starving_fl); i++) + for (m = s->starving_fl[i]; m; m &= m - 1) { + struct sge_eth_rxq *rxq; + unsigned int id = __ffs(m) + i * BITS_PER_LONG; + struct sge_fl *fl = s->egr_map[id]; + + clear_bit(id, s->starving_fl); + smp_mb__after_atomic(); + + if (fl_starving(fl)) { + rxq = container_of(fl, struct sge_eth_rxq, fl); + if (napi_reschedule(&rxq->rspq.napi)) + fl->starving++; + else + set_bit(id, s->starving_fl); + } + } + + t4_write_reg(adap, SGE_DEBUG_INDEX, 13); + idma_same_state_cnt[0] = t4_read_reg(adap, SGE_DEBUG_DATA_HIGH); + idma_same_state_cnt[1] = t4_read_reg(adap, SGE_DEBUG_DATA_LOW); + + for (i = 0; i < 2; i++) { + u32 debug0, debug11; + + /* If the Ingress DMA Same State Counter ("timer") is less + * than 1s, then we can reset our synthesized Stall Timer and + * continue. If we have previously emitted warnings about a + * potential stalled Ingress Queue, issue a note indicating + * that the Ingress Queue has resumed forward progress. + */ + if (idma_same_state_cnt[i] < s->idma_1s_thresh) { + if (s->idma_stalled[i] >= SGE_IDMA_WARN_THRESH) + CH_WARN(adap, "SGE idma%d, queue%u,resumed after %d sec\n", + i, s->idma_qid[i], + s->idma_stalled[i]/HZ); + s->idma_stalled[i] = 0; + continue; + } + + /* Synthesize an SGE Ingress DMA Same State Timer in the Hz + * domain. The first time we get here it'll be because we + * passed the 1s Threshold; each additional time it'll be + * because the RX Timer Callback is being fired on its regular + * schedule. + * + * If the stall is below our Potential Hung Ingress Queue + * Warning Threshold, continue. + */ + if (s->idma_stalled[i] == 0) + s->idma_stalled[i] = HZ; + else + s->idma_stalled[i] += RX_QCHECK_PERIOD; + + if (s->idma_stalled[i] < SGE_IDMA_WARN_THRESH) + continue; + + /* We'll issue a warning every SGE_IDMA_WARN_REPEAT Hz */ + if (((s->idma_stalled[i] - HZ) % SGE_IDMA_WARN_REPEAT) != 0) + continue; + + /* Read and save the SGE IDMA State and Queue ID information. + * We do this every time in case it changes across time ... + */ + t4_write_reg(adap, SGE_DEBUG_INDEX, 0); + debug0 = t4_read_reg(adap, SGE_DEBUG_DATA_LOW); + s->idma_state[i] = (debug0 >> (i * 9)) & 0x3f; + + t4_write_reg(adap, SGE_DEBUG_INDEX, 11); + debug11 = t4_read_reg(adap, SGE_DEBUG_DATA_LOW); + s->idma_qid[i] = (debug11 >> (i * 16)) & 0xffff; + + CH_WARN(adap, "SGE idma%u, queue%u, maybe stuck state%u %dsecs (debug0=%#x, debug11=%#x)\n", + i, s->idma_qid[i], s->idma_state[i], + s->idma_stalled[i]/HZ, debug0, debug11); + t4_sge_decode_idma_state(adap, s->idma_state[i]); + } + + mod_timer(&s->rx_timer, jiffies + RX_QCHECK_PERIOD); +} + +static void sge_tx_timer_cb(unsigned long data) +{ + unsigned long m; + unsigned int i, budget; + struct adapter *adap = (struct adapter *)data; + struct sge *s = &adap->sge; + + for (i = 0; i < ARRAY_SIZE(s->txq_maperr); i++) + for (m = s->txq_maperr[i]; m; m &= m - 1) { + unsigned long id = __ffs(m) + i * BITS_PER_LONG; + struct sge_ofld_txq *txq = s->egr_map[id]; + + clear_bit(id, s->txq_maperr); + tasklet_schedule(&txq->qresume_tsk); + } + + budget = MAX_TIMER_TX_RECLAIM; + i = s->ethtxq_rover; + do { + struct sge_eth_txq *q = &s->ethtxq[i]; + + if (q->q.in_use && + time_after_eq(jiffies, q->txq->trans_start + HZ / 100) && + __netif_tx_trylock(q->txq)) { + int avail = reclaimable(&q->q); + + if (avail) { + if (avail > budget) + avail = budget; + + free_tx_desc(adap, &q->q, avail, true); + q->q.in_use -= avail; + budget -= avail; + } + __netif_tx_unlock(q->txq); + } + + if (++i >= s->ethqsets) + i = 0; + } while (budget && i != s->ethtxq_rover); + s->ethtxq_rover = i; + mod_timer(&s->tx_timer, jiffies + (budget ? TX_QCHECK_PERIOD : 2)); +} + +int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq, + struct net_device *dev, int intr_idx, + struct sge_fl *fl, rspq_handler_t hnd) +{ + int ret, flsz = 0; + struct fw_iq_cmd c; + struct sge *s = &adap->sge; + struct port_info *pi = netdev_priv(dev); + + /* Size needs to be multiple of 16, including status entry. */ + iq->size = roundup(iq->size, 16); + + iq->desc = alloc_ring(adap->pdev_dev, iq->size, iq->iqe_len, 0, + &iq->phys_addr, NULL, 0, NUMA_NO_NODE); + if (!iq->desc) + return -ENOMEM; + + memset(&c, 0, sizeof(c)); + c.op_to_vfn = htonl(FW_CMD_OP(FW_IQ_CMD) | FW_CMD_REQUEST | + FW_CMD_WRITE | FW_CMD_EXEC | + FW_IQ_CMD_PFN(adap->fn) | FW_IQ_CMD_VFN(0)); + c.alloc_to_len16 = htonl(FW_IQ_CMD_ALLOC | FW_IQ_CMD_IQSTART(1) | + FW_LEN16(c)); + c.type_to_iqandstindex = htonl(FW_IQ_CMD_TYPE(FW_IQ_TYPE_FL_INT_CAP) | + FW_IQ_CMD_IQASYNCH(fwevtq) | FW_IQ_CMD_VIID(pi->viid) | + FW_IQ_CMD_IQANDST(intr_idx < 0) | FW_IQ_CMD_IQANUD(1) | + FW_IQ_CMD_IQANDSTINDEX(intr_idx >= 0 ? intr_idx : + -intr_idx - 1)); + c.iqdroprss_to_iqesize = htons(FW_IQ_CMD_IQPCIECH(pi->tx_chan) | + FW_IQ_CMD_IQGTSMODE | + FW_IQ_CMD_IQINTCNTTHRESH(iq->pktcnt_idx) | + FW_IQ_CMD_IQESIZE(ilog2(iq->iqe_len) - 4)); + c.iqsize = htons(iq->size); + c.iqaddr = cpu_to_be64(iq->phys_addr); + + if (fl) { + fl->size = roundup(fl->size, 8); + fl->desc = alloc_ring(adap->pdev_dev, fl->size, sizeof(__be64), + sizeof(struct rx_sw_desc), &fl->addr, + &fl->sdesc, s->stat_len, NUMA_NO_NODE); + if (!fl->desc) + goto fl_nomem; + + flsz = fl->size / 8 + s->stat_len / sizeof(struct tx_desc); + c.iqns_to_fl0congen = htonl(FW_IQ_CMD_FL0PACKEN(1) | + FW_IQ_CMD_FL0FETCHRO(1) | + FW_IQ_CMD_FL0DATARO(1) | + FW_IQ_CMD_FL0PADEN(1)); + c.fl0dcaen_to_fl0cidxfthresh = htons(FW_IQ_CMD_FL0FBMIN(2) | + FW_IQ_CMD_FL0FBMAX(3)); + c.fl0size = htons(flsz); + c.fl0addr = cpu_to_be64(fl->addr); + } + + ret = t4_wr_mbox(adap, adap->fn, &c, sizeof(c), &c); + if (ret) + goto err; + + netif_napi_add(dev, &iq->napi, napi_rx_handler, 64); + iq->cur_desc = iq->desc; + iq->cidx = 0; + iq->gen = 1; + iq->next_intr_params = iq->intr_params; + iq->cntxt_id = ntohs(c.iqid); + iq->abs_id = ntohs(c.physiqid); + iq->size--; /* subtract status entry */ + iq->netdev = dev; + iq->handler = hnd; + + /* set offset to -1 to distinguish ingress queues without FL */ + iq->offset = fl ? 0 : -1; + + adap->sge.ingr_map[iq->cntxt_id - adap->sge.ingr_start] = iq; + + if (fl) { + fl->cntxt_id = ntohs(c.fl0id); + fl->avail = fl->pend_cred = 0; + fl->pidx = fl->cidx = 0; + fl->alloc_failed = fl->large_alloc_failed = fl->starving = 0; + adap->sge.egr_map[fl->cntxt_id - adap->sge.egr_start] = fl; + refill_fl(adap, fl, fl_cap(fl), GFP_KERNEL); + } + return 0; + +fl_nomem: + ret = -ENOMEM; +err: + if (iq->desc) { + dma_free_coherent(adap->pdev_dev, iq->size * iq->iqe_len, + iq->desc, iq->phys_addr); + iq->desc = NULL; + } + if (fl && fl->desc) { + kfree(fl->sdesc); + fl->sdesc = NULL; + dma_free_coherent(adap->pdev_dev, flsz * sizeof(struct tx_desc), + fl->desc, fl->addr); + fl->desc = NULL; + } + return ret; +} + +static void init_txq(struct adapter *adap, struct sge_txq *q, unsigned int id) +{ + q->cntxt_id = id; + if (!is_t4(adap->params.chip)) { + unsigned int s_qpp; + unsigned short udb_density; + unsigned long qpshift; + int page; + + s_qpp = QUEUESPERPAGEPF1 * adap->fn; + udb_density = 1 << QUEUESPERPAGEPF0_GET((t4_read_reg(adap, + SGE_EGRESS_QUEUES_PER_PAGE_PF) >> s_qpp)); + qpshift = PAGE_SHIFT - ilog2(udb_density); + q->udb = q->cntxt_id << qpshift; + q->udb &= PAGE_MASK; + page = q->udb / PAGE_SIZE; + q->udb += (q->cntxt_id - (page * udb_density)) * 128; + } + + q->in_use = 0; + q->cidx = q->pidx = 0; + q->stops = q->restarts = 0; + q->stat = (void *)&q->desc[q->size]; + spin_lock_init(&q->db_lock); + adap->sge.egr_map[id - adap->sge.egr_start] = q; +} + +int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq, + struct net_device *dev, struct netdev_queue *netdevq, + unsigned int iqid) +{ + int ret, nentries; + struct fw_eq_eth_cmd c; + struct sge *s = &adap->sge; + struct port_info *pi = netdev_priv(dev); + + /* Add status entries */ + nentries = txq->q.size + s->stat_len / sizeof(struct tx_desc); + + txq->q.desc = alloc_ring(adap->pdev_dev, txq->q.size, + sizeof(struct tx_desc), sizeof(struct tx_sw_desc), + &txq->q.phys_addr, &txq->q.sdesc, s->stat_len, + netdev_queue_numa_node_read(netdevq)); + if (!txq->q.desc) + return -ENOMEM; + + memset(&c, 0, sizeof(c)); + c.op_to_vfn = htonl(FW_CMD_OP(FW_EQ_ETH_CMD) | FW_CMD_REQUEST | + FW_CMD_WRITE | FW_CMD_EXEC | + FW_EQ_ETH_CMD_PFN(adap->fn) | FW_EQ_ETH_CMD_VFN(0)); + c.alloc_to_len16 = htonl(FW_EQ_ETH_CMD_ALLOC | + FW_EQ_ETH_CMD_EQSTART | FW_LEN16(c)); + c.viid_pkd = htonl(FW_EQ_ETH_CMD_VIID(pi->viid)); + c.fetchszm_to_iqid = htonl(FW_EQ_ETH_CMD_HOSTFCMODE(2) | + FW_EQ_ETH_CMD_PCIECHN(pi->tx_chan) | + FW_EQ_ETH_CMD_FETCHRO(1) | + FW_EQ_ETH_CMD_IQID(iqid)); + c.dcaen_to_eqsize = htonl(FW_EQ_ETH_CMD_FBMIN(2) | + FW_EQ_ETH_CMD_FBMAX(3) | + FW_EQ_ETH_CMD_CIDXFTHRESH(5) | + FW_EQ_ETH_CMD_EQSIZE(nentries)); + c.eqaddr = cpu_to_be64(txq->q.phys_addr); + + ret = t4_wr_mbox(adap, adap->fn, &c, sizeof(c), &c); + if (ret) { + kfree(txq->q.sdesc); + txq->q.sdesc = NULL; + dma_free_coherent(adap->pdev_dev, + nentries * sizeof(struct tx_desc), + txq->q.desc, txq->q.phys_addr); + txq->q.desc = NULL; + return ret; + } + + init_txq(adap, &txq->q, FW_EQ_ETH_CMD_EQID_GET(ntohl(c.eqid_pkd))); + txq->txq = netdevq; + txq->tso = txq->tx_cso = txq->vlan_ins = 0; + txq->mapping_err = 0; + return 0; +} + +int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq, + struct net_device *dev, unsigned int iqid, + unsigned int cmplqid) +{ + int ret, nentries; + struct fw_eq_ctrl_cmd c; + struct sge *s = &adap->sge; + struct port_info *pi = netdev_priv(dev); + + /* Add status entries */ + nentries = txq->q.size + s->stat_len / sizeof(struct tx_desc); + + txq->q.desc = alloc_ring(adap->pdev_dev, nentries, + sizeof(struct tx_desc), 0, &txq->q.phys_addr, + NULL, 0, NUMA_NO_NODE); + if (!txq->q.desc) + return -ENOMEM; + + c.op_to_vfn = htonl(FW_CMD_OP(FW_EQ_CTRL_CMD) | FW_CMD_REQUEST | + FW_CMD_WRITE | FW_CMD_EXEC | + FW_EQ_CTRL_CMD_PFN(adap->fn) | + FW_EQ_CTRL_CMD_VFN(0)); + c.alloc_to_len16 = htonl(FW_EQ_CTRL_CMD_ALLOC | + FW_EQ_CTRL_CMD_EQSTART | FW_LEN16(c)); + c.cmpliqid_eqid = htonl(FW_EQ_CTRL_CMD_CMPLIQID(cmplqid)); + c.physeqid_pkd = htonl(0); + c.fetchszm_to_iqid = htonl(FW_EQ_CTRL_CMD_HOSTFCMODE(2) | + FW_EQ_CTRL_CMD_PCIECHN(pi->tx_chan) | + FW_EQ_CTRL_CMD_FETCHRO | + FW_EQ_CTRL_CMD_IQID(iqid)); + c.dcaen_to_eqsize = htonl(FW_EQ_CTRL_CMD_FBMIN(2) | + FW_EQ_CTRL_CMD_FBMAX(3) | + FW_EQ_CTRL_CMD_CIDXFTHRESH(5) | + FW_EQ_CTRL_CMD_EQSIZE(nentries)); + c.eqaddr = cpu_to_be64(txq->q.phys_addr); + + ret = t4_wr_mbox(adap, adap->fn, &c, sizeof(c), &c); + if (ret) { + dma_free_coherent(adap->pdev_dev, + nentries * sizeof(struct tx_desc), + txq->q.desc, txq->q.phys_addr); + txq->q.desc = NULL; + return ret; + } + + init_txq(adap, &txq->q, FW_EQ_CTRL_CMD_EQID_GET(ntohl(c.cmpliqid_eqid))); + txq->adap = adap; + skb_queue_head_init(&txq->sendq); + tasklet_init(&txq->qresume_tsk, restart_ctrlq, (unsigned long)txq); + txq->full = 0; + return 0; +} + +int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq, + struct net_device *dev, unsigned int iqid) +{ + int ret, nentries; + struct fw_eq_ofld_cmd c; + struct sge *s = &adap->sge; + struct port_info *pi = netdev_priv(dev); + + /* Add status entries */ + nentries = txq->q.size + s->stat_len / sizeof(struct tx_desc); + + txq->q.desc = alloc_ring(adap->pdev_dev, txq->q.size, + sizeof(struct tx_desc), sizeof(struct tx_sw_desc), + &txq->q.phys_addr, &txq->q.sdesc, s->stat_len, + NUMA_NO_NODE); + if (!txq->q.desc) + return -ENOMEM; + + memset(&c, 0, sizeof(c)); + c.op_to_vfn = htonl(FW_CMD_OP(FW_EQ_OFLD_CMD) | FW_CMD_REQUEST | + FW_CMD_WRITE | FW_CMD_EXEC | + FW_EQ_OFLD_CMD_PFN(adap->fn) | + FW_EQ_OFLD_CMD_VFN(0)); + c.alloc_to_len16 = htonl(FW_EQ_OFLD_CMD_ALLOC | + FW_EQ_OFLD_CMD_EQSTART | FW_LEN16(c)); + c.fetchszm_to_iqid = htonl(FW_EQ_OFLD_CMD_HOSTFCMODE(2) | + FW_EQ_OFLD_CMD_PCIECHN(pi->tx_chan) | + FW_EQ_OFLD_CMD_FETCHRO(1) | + FW_EQ_OFLD_CMD_IQID(iqid)); + c.dcaen_to_eqsize = htonl(FW_EQ_OFLD_CMD_FBMIN(2) | + FW_EQ_OFLD_CMD_FBMAX(3) | + FW_EQ_OFLD_CMD_CIDXFTHRESH(5) | + FW_EQ_OFLD_CMD_EQSIZE(nentries)); + c.eqaddr = cpu_to_be64(txq->q.phys_addr); + + ret = t4_wr_mbox(adap, adap->fn, &c, sizeof(c), &c); + if (ret) { + kfree(txq->q.sdesc); + txq->q.sdesc = NULL; + dma_free_coherent(adap->pdev_dev, + nentries * sizeof(struct tx_desc), + txq->q.desc, txq->q.phys_addr); + txq->q.desc = NULL; + return ret; + } + + init_txq(adap, &txq->q, FW_EQ_OFLD_CMD_EQID_GET(ntohl(c.eqid_pkd))); + txq->adap = adap; + skb_queue_head_init(&txq->sendq); + tasklet_init(&txq->qresume_tsk, restart_ofldq, (unsigned long)txq); + txq->full = 0; + txq->mapping_err = 0; + return 0; +} + +static void free_txq(struct adapter *adap, struct sge_txq *q) +{ + struct sge *s = &adap->sge; + + dma_free_coherent(adap->pdev_dev, + q->size * sizeof(struct tx_desc) + s->stat_len, + q->desc, q->phys_addr); + q->cntxt_id = 0; + q->sdesc = NULL; + q->desc = NULL; +} + +static void free_rspq_fl(struct adapter *adap, struct sge_rspq *rq, + struct sge_fl *fl) +{ + struct sge *s = &adap->sge; + unsigned int fl_id = fl ? fl->cntxt_id : 0xffff; + + adap->sge.ingr_map[rq->cntxt_id - adap->sge.ingr_start] = NULL; + t4_iq_free(adap, adap->fn, adap->fn, 0, FW_IQ_TYPE_FL_INT_CAP, + rq->cntxt_id, fl_id, 0xffff); + dma_free_coherent(adap->pdev_dev, (rq->size + 1) * rq->iqe_len, + rq->desc, rq->phys_addr); + netif_napi_del(&rq->napi); + rq->netdev = NULL; + rq->cntxt_id = rq->abs_id = 0; + rq->desc = NULL; + + if (fl) { + free_rx_bufs(adap, fl, fl->avail); + dma_free_coherent(adap->pdev_dev, fl->size * 8 + s->stat_len, + fl->desc, fl->addr); + kfree(fl->sdesc); + fl->sdesc = NULL; + fl->cntxt_id = 0; + fl->desc = NULL; + } +} + +/** + * t4_free_sge_resources - free SGE resources + * @adap: the adapter + * + * Frees resources used by the SGE queue sets. + */ +void t4_free_sge_resources(struct adapter *adap) +{ + int i; + struct sge_eth_rxq *eq = adap->sge.ethrxq; + struct sge_eth_txq *etq = adap->sge.ethtxq; + struct sge_ofld_rxq *oq = adap->sge.ofldrxq; + + /* clean up Ethernet Tx/Rx queues */ + for (i = 0; i < adap->sge.ethqsets; i++, eq++, etq++) { + if (eq->rspq.desc) + free_rspq_fl(adap, &eq->rspq, &eq->fl); + if (etq->q.desc) { + t4_eth_eq_free(adap, adap->fn, adap->fn, 0, + etq->q.cntxt_id); + free_tx_desc(adap, &etq->q, etq->q.in_use, true); + kfree(etq->q.sdesc); + free_txq(adap, &etq->q); + } + } + + /* clean up RDMA and iSCSI Rx queues */ + for (i = 0; i < adap->sge.ofldqsets; i++, oq++) { + if (oq->rspq.desc) + free_rspq_fl(adap, &oq->rspq, &oq->fl); + } + for (i = 0, oq = adap->sge.rdmarxq; i < adap->sge.rdmaqs; i++, oq++) { + if (oq->rspq.desc) + free_rspq_fl(adap, &oq->rspq, &oq->fl); + } + for (i = 0, oq = adap->sge.rdmaciq; i < adap->sge.rdmaciqs; i++, oq++) { + if (oq->rspq.desc) + free_rspq_fl(adap, &oq->rspq, &oq->fl); + } + + /* clean up offload Tx queues */ + for (i = 0; i < ARRAY_SIZE(adap->sge.ofldtxq); i++) { + struct sge_ofld_txq *q = &adap->sge.ofldtxq[i]; + + if (q->q.desc) { + tasklet_kill(&q->qresume_tsk); + t4_ofld_eq_free(adap, adap->fn, adap->fn, 0, + q->q.cntxt_id); + free_tx_desc(adap, &q->q, q->q.in_use, false); + kfree(q->q.sdesc); + __skb_queue_purge(&q->sendq); + free_txq(adap, &q->q); + } + } + + /* clean up control Tx queues */ + for (i = 0; i < ARRAY_SIZE(adap->sge.ctrlq); i++) { + struct sge_ctrl_txq *cq = &adap->sge.ctrlq[i]; + + if (cq->q.desc) { + tasklet_kill(&cq->qresume_tsk); + t4_ctrl_eq_free(adap, adap->fn, adap->fn, 0, + cq->q.cntxt_id); + __skb_queue_purge(&cq->sendq); + free_txq(adap, &cq->q); + } + } + + if (adap->sge.fw_evtq.desc) + free_rspq_fl(adap, &adap->sge.fw_evtq, NULL); + + if (adap->sge.intrq.desc) + free_rspq_fl(adap, &adap->sge.intrq, NULL); + + /* clear the reverse egress queue map */ + memset(adap->sge.egr_map, 0, sizeof(adap->sge.egr_map)); +} + +void t4_sge_start(struct adapter *adap) +{ + adap->sge.ethtxq_rover = 0; + mod_timer(&adap->sge.rx_timer, jiffies + RX_QCHECK_PERIOD); + mod_timer(&adap->sge.tx_timer, jiffies + TX_QCHECK_PERIOD); +} + +/** + * t4_sge_stop - disable SGE operation + * @adap: the adapter + * + * Stop tasklets and timers associated with the DMA engine. Note that + * this is effective only if measures have been taken to disable any HW + * events that may restart them. + */ +void t4_sge_stop(struct adapter *adap) +{ + int i; + struct sge *s = &adap->sge; + + if (in_interrupt()) /* actions below require waiting */ + return; + + if (s->rx_timer.function) + del_timer_sync(&s->rx_timer); + if (s->tx_timer.function) + del_timer_sync(&s->tx_timer); + + for (i = 0; i < ARRAY_SIZE(s->ofldtxq); i++) { + struct sge_ofld_txq *q = &s->ofldtxq[i]; + + if (q->q.desc) + tasklet_kill(&q->qresume_tsk); + } + for (i = 0; i < ARRAY_SIZE(s->ctrlq); i++) { + struct sge_ctrl_txq *cq = &s->ctrlq[i]; + + if (cq->q.desc) + tasklet_kill(&cq->qresume_tsk); + } +} + +/** + * t4_sge_init - initialize SGE + * @adap: the adapter + * + * Performs SGE initialization needed every time after a chip reset. + * We do not initialize any of the queues here, instead the driver + * top-level must request them individually. + * + * Called in two different modes: + * + * 1. Perform actual hardware initialization and record hard-coded + * parameters which were used. This gets used when we're the + * Master PF and the Firmware Configuration File support didn't + * work for some reason. + * + * 2. We're not the Master PF or initialization was performed with + * a Firmware Configuration File. In this case we need to grab + * any of the SGE operating parameters that we need to have in + * order to do our job and make sure we can live with them ... + */ + +static int t4_sge_init_soft(struct adapter *adap) +{ + struct sge *s = &adap->sge; + u32 fl_small_pg, fl_large_pg, fl_small_mtu, fl_large_mtu; + u32 timer_value_0_and_1, timer_value_2_and_3, timer_value_4_and_5; + u32 ingress_rx_threshold; + + /* + * Verify that CPL messages are going to the Ingress Queue for + * process_responses() and that only packet data is going to the + * Free Lists. + */ + if ((t4_read_reg(adap, SGE_CONTROL) & RXPKTCPLMODE_MASK) != + RXPKTCPLMODE(X_RXPKTCPLMODE_SPLIT)) { + dev_err(adap->pdev_dev, "bad SGE CPL MODE\n"); + return -EINVAL; + } + + /* + * Validate the Host Buffer Register Array indices that we want to + * use ... + * + * XXX Note that we should really read through the Host Buffer Size + * XXX register array and find the indices of the Buffer Sizes which + * XXX meet our needs! + */ + #define READ_FL_BUF(x) \ + t4_read_reg(adap, SGE_FL_BUFFER_SIZE0+(x)*sizeof(u32)) + + fl_small_pg = READ_FL_BUF(RX_SMALL_PG_BUF); + fl_large_pg = READ_FL_BUF(RX_LARGE_PG_BUF); + fl_small_mtu = READ_FL_BUF(RX_SMALL_MTU_BUF); + fl_large_mtu = READ_FL_BUF(RX_LARGE_MTU_BUF); + + /* We only bother using the Large Page logic if the Large Page Buffer + * is larger than our Page Size Buffer. + */ + if (fl_large_pg <= fl_small_pg) + fl_large_pg = 0; + + #undef READ_FL_BUF + + /* The Page Size Buffer must be exactly equal to our Page Size and the + * Large Page Size Buffer should be 0 (per above) or a power of 2. + */ + if (fl_small_pg != PAGE_SIZE || + (fl_large_pg & (fl_large_pg-1)) != 0) { + dev_err(adap->pdev_dev, "bad SGE FL page buffer sizes [%d, %d]\n", + fl_small_pg, fl_large_pg); + return -EINVAL; + } + if (fl_large_pg) + s->fl_pg_order = ilog2(fl_large_pg) - PAGE_SHIFT; + + if (fl_small_mtu < FL_MTU_SMALL_BUFSIZE(adap) || + fl_large_mtu < FL_MTU_LARGE_BUFSIZE(adap)) { + dev_err(adap->pdev_dev, "bad SGE FL MTU sizes [%d, %d]\n", + fl_small_mtu, fl_large_mtu); + return -EINVAL; + } + + /* + * Retrieve our RX interrupt holdoff timer values and counter + * threshold values from the SGE parameters. + */ + timer_value_0_and_1 = t4_read_reg(adap, SGE_TIMER_VALUE_0_AND_1); + timer_value_2_and_3 = t4_read_reg(adap, SGE_TIMER_VALUE_2_AND_3); + timer_value_4_and_5 = t4_read_reg(adap, SGE_TIMER_VALUE_4_AND_5); + s->timer_val[0] = core_ticks_to_us(adap, + TIMERVALUE0_GET(timer_value_0_and_1)); + s->timer_val[1] = core_ticks_to_us(adap, + TIMERVALUE1_GET(timer_value_0_and_1)); + s->timer_val[2] = core_ticks_to_us(adap, + TIMERVALUE2_GET(timer_value_2_and_3)); + s->timer_val[3] = core_ticks_to_us(adap, + TIMERVALUE3_GET(timer_value_2_and_3)); + s->timer_val[4] = core_ticks_to_us(adap, + TIMERVALUE4_GET(timer_value_4_and_5)); + s->timer_val[5] = core_ticks_to_us(adap, + TIMERVALUE5_GET(timer_value_4_and_5)); + + ingress_rx_threshold = t4_read_reg(adap, SGE_INGRESS_RX_THRESHOLD); + s->counter_val[0] = THRESHOLD_0_GET(ingress_rx_threshold); + s->counter_val[1] = THRESHOLD_1_GET(ingress_rx_threshold); + s->counter_val[2] = THRESHOLD_2_GET(ingress_rx_threshold); + s->counter_val[3] = THRESHOLD_3_GET(ingress_rx_threshold); + + return 0; +} + +static int t4_sge_init_hard(struct adapter *adap) +{ + struct sge *s = &adap->sge; + + /* + * Set up our basic SGE mode to deliver CPL messages to our Ingress + * Queue and Packet Date to the Free List. + */ + t4_set_reg_field(adap, SGE_CONTROL, RXPKTCPLMODE_MASK, + RXPKTCPLMODE_MASK); + + /* + * Set up to drop DOORBELL writes when the DOORBELL FIFO overflows + * and generate an interrupt when this occurs so we can recover. + */ + if (is_t4(adap->params.chip)) { + t4_set_reg_field(adap, A_SGE_DBFIFO_STATUS, + V_HP_INT_THRESH(M_HP_INT_THRESH) | + V_LP_INT_THRESH(M_LP_INT_THRESH), + V_HP_INT_THRESH(dbfifo_int_thresh) | + V_LP_INT_THRESH(dbfifo_int_thresh)); + } else { + t4_set_reg_field(adap, A_SGE_DBFIFO_STATUS, + V_LP_INT_THRESH_T5(M_LP_INT_THRESH_T5), + V_LP_INT_THRESH_T5(dbfifo_int_thresh)); + t4_set_reg_field(adap, SGE_DBFIFO_STATUS2, + V_HP_INT_THRESH_T5(M_HP_INT_THRESH_T5), + V_HP_INT_THRESH_T5(dbfifo_int_thresh)); + } + t4_set_reg_field(adap, A_SGE_DOORBELL_CONTROL, F_ENABLE_DROP, + F_ENABLE_DROP); + + /* + * SGE_FL_BUFFER_SIZE0 (RX_SMALL_PG_BUF) is set up by + * t4_fixup_host_params(). + */ + s->fl_pg_order = FL_PG_ORDER; + if (s->fl_pg_order) + t4_write_reg(adap, + SGE_FL_BUFFER_SIZE0+RX_LARGE_PG_BUF*sizeof(u32), + PAGE_SIZE << FL_PG_ORDER); + t4_write_reg(adap, SGE_FL_BUFFER_SIZE0+RX_SMALL_MTU_BUF*sizeof(u32), + FL_MTU_SMALL_BUFSIZE(adap)); + t4_write_reg(adap, SGE_FL_BUFFER_SIZE0+RX_LARGE_MTU_BUF*sizeof(u32), + FL_MTU_LARGE_BUFSIZE(adap)); + + /* + * Note that the SGE Ingress Packet Count Interrupt Threshold and + * Timer Holdoff values must be supplied by our caller. + */ + t4_write_reg(adap, SGE_INGRESS_RX_THRESHOLD, + THRESHOLD_0(s->counter_val[0]) | + THRESHOLD_1(s->counter_val[1]) | + THRESHOLD_2(s->counter_val[2]) | + THRESHOLD_3(s->counter_val[3])); + t4_write_reg(adap, SGE_TIMER_VALUE_0_AND_1, + TIMERVALUE0(us_to_core_ticks(adap, s->timer_val[0])) | + TIMERVALUE1(us_to_core_ticks(adap, s->timer_val[1]))); + t4_write_reg(adap, SGE_TIMER_VALUE_2_AND_3, + TIMERVALUE2(us_to_core_ticks(adap, s->timer_val[2])) | + TIMERVALUE3(us_to_core_ticks(adap, s->timer_val[3]))); + t4_write_reg(adap, SGE_TIMER_VALUE_4_AND_5, + TIMERVALUE4(us_to_core_ticks(adap, s->timer_val[4])) | + TIMERVALUE5(us_to_core_ticks(adap, s->timer_val[5]))); + + return 0; +} + +int t4_sge_init(struct adapter *adap) +{ + struct sge *s = &adap->sge; + u32 sge_control, sge_conm_ctrl; + int ret, egress_threshold; + + /* + * Ingress Padding Boundary and Egress Status Page Size are set up by + * t4_fixup_host_params(). + */ + sge_control = t4_read_reg(adap, SGE_CONTROL); + s->pktshift = PKTSHIFT_GET(sge_control); + s->stat_len = (sge_control & EGRSTATUSPAGESIZE_MASK) ? 128 : 64; + s->fl_align = 1 << (INGPADBOUNDARY_GET(sge_control) + + X_INGPADBOUNDARY_SHIFT); + + if (adap->flags & USING_SOFT_PARAMS) + ret = t4_sge_init_soft(adap); + else + ret = t4_sge_init_hard(adap); + if (ret < 0) + return ret; + + /* + * A FL with <= fl_starve_thres buffers is starving and a periodic + * timer will attempt to refill it. This needs to be larger than the + * SGE's Egress Congestion Threshold. If it isn't, then we can get + * stuck waiting for new packets while the SGE is waiting for us to + * give it more Free List entries. (Note that the SGE's Egress + * Congestion Threshold is in units of 2 Free List pointers.) For T4, + * there was only a single field to control this. For T5 there's the + * original field which now only applies to Unpacked Mode Free List + * buffers and a new field which only applies to Packed Mode Free List + * buffers. + */ + sge_conm_ctrl = t4_read_reg(adap, SGE_CONM_CTRL); + if (is_t4(adap->params.chip)) + egress_threshold = EGRTHRESHOLD_GET(sge_conm_ctrl); + else + egress_threshold = EGRTHRESHOLDPACKING_GET(sge_conm_ctrl); + s->fl_starve_thres = 2*egress_threshold + 1; + + setup_timer(&s->rx_timer, sge_rx_timer_cb, (unsigned long)adap); + setup_timer(&s->tx_timer, sge_tx_timer_cb, (unsigned long)adap); + s->idma_1s_thresh = core_ticks_per_usec(adap) * 1000000; /* 1 s */ + s->idma_stalled[0] = 0; + s->idma_stalled[1] = 0; + spin_lock_init(&s->intrq_lock); + + return 0; +} diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c new file mode 100644 index 00000000000..931478e7bd2 --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -0,0 +1,3986 @@ +/* + * This file is part of the Chelsio T4 Ethernet driver for Linux. + * + * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/delay.h> +#include "cxgb4.h" +#include "t4_regs.h" +#include "t4fw_api.h" + +static int t4_fw_upgrade(struct adapter *adap, unsigned int mbox, + const u8 *fw_data, unsigned int size, int force); +/** + * t4_wait_op_done_val - wait until an operation is completed + * @adapter: the adapter performing the operation + * @reg: the register to check for completion + * @mask: a single-bit field within @reg that indicates completion + * @polarity: the value of the field when the operation is completed + * @attempts: number of check iterations + * @delay: delay in usecs between iterations + * @valp: where to store the value of the register at completion time + * + * Wait until an operation is completed by checking a bit in a register + * up to @attempts times. If @valp is not NULL the value of the register + * at the time it indicated completion is stored there. Returns 0 if the + * operation completes and -EAGAIN otherwise. + */ +static int t4_wait_op_done_val(struct adapter *adapter, int reg, u32 mask, + int polarity, int attempts, int delay, u32 *valp) +{ + while (1) { + u32 val = t4_read_reg(adapter, reg); + + if (!!(val & mask) == polarity) { + if (valp) + *valp = val; + return 0; + } + if (--attempts == 0) + return -EAGAIN; + if (delay) + udelay(delay); + } +} + +static inline int t4_wait_op_done(struct adapter *adapter, int reg, u32 mask, + int polarity, int attempts, int delay) +{ + return t4_wait_op_done_val(adapter, reg, mask, polarity, attempts, + delay, NULL); +} + +/** + * t4_set_reg_field - set a register field to a value + * @adapter: the adapter to program + * @addr: the register address + * @mask: specifies the portion of the register to modify + * @val: the new value for the register field + * + * Sets a register field specified by the supplied mask to the + * given value. + */ +void t4_set_reg_field(struct adapter *adapter, unsigned int addr, u32 mask, + u32 val) +{ + u32 v = t4_read_reg(adapter, addr) & ~mask; + + t4_write_reg(adapter, addr, v | val); + (void) t4_read_reg(adapter, addr); /* flush */ +} + +/** + * t4_read_indirect - read indirectly addressed registers + * @adap: the adapter + * @addr_reg: register holding the indirect address + * @data_reg: register holding the value of the indirect register + * @vals: where the read register values are stored + * @nregs: how many indirect registers to read + * @start_idx: index of first indirect register to read + * + * Reads registers that are accessed indirectly through an address/data + * register pair. + */ +void t4_read_indirect(struct adapter *adap, unsigned int addr_reg, + unsigned int data_reg, u32 *vals, + unsigned int nregs, unsigned int start_idx) +{ + while (nregs--) { + t4_write_reg(adap, addr_reg, start_idx); + *vals++ = t4_read_reg(adap, data_reg); + start_idx++; + } +} + +/** + * t4_write_indirect - write indirectly addressed registers + * @adap: the adapter + * @addr_reg: register holding the indirect addresses + * @data_reg: register holding the value for the indirect registers + * @vals: values to write + * @nregs: how many indirect registers to write + * @start_idx: address of first indirect register to write + * + * Writes a sequential block of registers that are accessed indirectly + * through an address/data register pair. + */ +void t4_write_indirect(struct adapter *adap, unsigned int addr_reg, + unsigned int data_reg, const u32 *vals, + unsigned int nregs, unsigned int start_idx) +{ + while (nregs--) { + t4_write_reg(adap, addr_reg, start_idx++); + t4_write_reg(adap, data_reg, *vals++); + } +} + +/* + * Get the reply to a mailbox command and store it in @rpl in big-endian order. + */ +static void get_mbox_rpl(struct adapter *adap, __be64 *rpl, int nflit, + u32 mbox_addr) +{ + for ( ; nflit; nflit--, mbox_addr += 8) + *rpl++ = cpu_to_be64(t4_read_reg64(adap, mbox_addr)); +} + +/* + * Handle a FW assertion reported in a mailbox. + */ +static void fw_asrt(struct adapter *adap, u32 mbox_addr) +{ + struct fw_debug_cmd asrt; + + get_mbox_rpl(adap, (__be64 *)&asrt, sizeof(asrt) / 8, mbox_addr); + dev_alert(adap->pdev_dev, + "FW assertion at %.16s:%u, val0 %#x, val1 %#x\n", + asrt.u.assert.filename_0_7, ntohl(asrt.u.assert.line), + ntohl(asrt.u.assert.x), ntohl(asrt.u.assert.y)); +} + +static void dump_mbox(struct adapter *adap, int mbox, u32 data_reg) +{ + dev_err(adap->pdev_dev, + "mbox %d: %llx %llx %llx %llx %llx %llx %llx %llx\n", mbox, + (unsigned long long)t4_read_reg64(adap, data_reg), + (unsigned long long)t4_read_reg64(adap, data_reg + 8), + (unsigned long long)t4_read_reg64(adap, data_reg + 16), + (unsigned long long)t4_read_reg64(adap, data_reg + 24), + (unsigned long long)t4_read_reg64(adap, data_reg + 32), + (unsigned long long)t4_read_reg64(adap, data_reg + 40), + (unsigned long long)t4_read_reg64(adap, data_reg + 48), + (unsigned long long)t4_read_reg64(adap, data_reg + 56)); +} + +/** + * t4_wr_mbox_meat - send a command to FW through the given mailbox + * @adap: the adapter + * @mbox: index of the mailbox to use + * @cmd: the command to write + * @size: command length in bytes + * @rpl: where to optionally store the reply + * @sleep_ok: if true we may sleep while awaiting command completion + * + * Sends the given command to FW through the selected mailbox and waits + * for the FW to execute the command. If @rpl is not %NULL it is used to + * store the FW's reply to the command. The command and its optional + * reply are of the same length. FW can take up to %FW_CMD_MAX_TIMEOUT ms + * to respond. @sleep_ok determines whether we may sleep while awaiting + * the response. If sleeping is allowed we use progressive backoff + * otherwise we spin. + * + * The return value is 0 on success or a negative errno on failure. A + * failure can happen either because we are not able to execute the + * command or FW executes it but signals an error. In the latter case + * the return value is the error code indicated by FW (negated). + */ +int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size, + void *rpl, bool sleep_ok) +{ + static const int delay[] = { + 1, 1, 3, 5, 10, 10, 20, 50, 100, 200 + }; + + u32 v; + u64 res; + int i, ms, delay_idx; + const __be64 *p = cmd; + u32 data_reg = PF_REG(mbox, CIM_PF_MAILBOX_DATA); + u32 ctl_reg = PF_REG(mbox, CIM_PF_MAILBOX_CTRL); + + if ((size & 15) || size > MBOX_LEN) + return -EINVAL; + + /* + * If the device is off-line, as in EEH, commands will time out. + * Fail them early so we don't waste time waiting. + */ + if (adap->pdev->error_state != pci_channel_io_normal) + return -EIO; + + v = MBOWNER_GET(t4_read_reg(adap, ctl_reg)); + for (i = 0; v == MBOX_OWNER_NONE && i < 3; i++) + v = MBOWNER_GET(t4_read_reg(adap, ctl_reg)); + + if (v != MBOX_OWNER_DRV) + return v ? -EBUSY : -ETIMEDOUT; + + for (i = 0; i < size; i += 8) + t4_write_reg64(adap, data_reg + i, be64_to_cpu(*p++)); + + t4_write_reg(adap, ctl_reg, MBMSGVALID | MBOWNER(MBOX_OWNER_FW)); + t4_read_reg(adap, ctl_reg); /* flush write */ + + delay_idx = 0; + ms = delay[0]; + + for (i = 0; i < FW_CMD_MAX_TIMEOUT; i += ms) { + if (sleep_ok) { + ms = delay[delay_idx]; /* last element may repeat */ + if (delay_idx < ARRAY_SIZE(delay) - 1) + delay_idx++; + msleep(ms); + } else + mdelay(ms); + + v = t4_read_reg(adap, ctl_reg); + if (MBOWNER_GET(v) == MBOX_OWNER_DRV) { + if (!(v & MBMSGVALID)) { + t4_write_reg(adap, ctl_reg, 0); + continue; + } + + res = t4_read_reg64(adap, data_reg); + if (FW_CMD_OP_GET(res >> 32) == FW_DEBUG_CMD) { + fw_asrt(adap, data_reg); + res = FW_CMD_RETVAL(EIO); + } else if (rpl) + get_mbox_rpl(adap, rpl, size / 8, data_reg); + + if (FW_CMD_RETVAL_GET((int)res)) + dump_mbox(adap, mbox, data_reg); + t4_write_reg(adap, ctl_reg, 0); + return -FW_CMD_RETVAL_GET((int)res); + } + } + + dump_mbox(adap, mbox, data_reg); + dev_err(adap->pdev_dev, "command %#x in mailbox %d timed out\n", + *(const u8 *)cmd, mbox); + return -ETIMEDOUT; +} + +/** + * t4_mc_read - read from MC through backdoor accesses + * @adap: the adapter + * @addr: address of first byte requested + * @idx: which MC to access + * @data: 64 bytes of data containing the requested address + * @ecc: where to store the corresponding 64-bit ECC word + * + * Read 64 bytes of data from MC starting at a 64-byte-aligned address + * that covers the requested address @addr. If @parity is not %NULL it + * is assigned the 64-bit ECC word for the read data. + */ +int t4_mc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc) +{ + int i; + u32 mc_bist_cmd, mc_bist_cmd_addr, mc_bist_cmd_len; + u32 mc_bist_status_rdata, mc_bist_data_pattern; + + if (is_t4(adap->params.chip)) { + mc_bist_cmd = MC_BIST_CMD; + mc_bist_cmd_addr = MC_BIST_CMD_ADDR; + mc_bist_cmd_len = MC_BIST_CMD_LEN; + mc_bist_status_rdata = MC_BIST_STATUS_RDATA; + mc_bist_data_pattern = MC_BIST_DATA_PATTERN; + } else { + mc_bist_cmd = MC_REG(MC_P_BIST_CMD, idx); + mc_bist_cmd_addr = MC_REG(MC_P_BIST_CMD_ADDR, idx); + mc_bist_cmd_len = MC_REG(MC_P_BIST_CMD_LEN, idx); + mc_bist_status_rdata = MC_REG(MC_P_BIST_STATUS_RDATA, idx); + mc_bist_data_pattern = MC_REG(MC_P_BIST_DATA_PATTERN, idx); + } + + if (t4_read_reg(adap, mc_bist_cmd) & START_BIST) + return -EBUSY; + t4_write_reg(adap, mc_bist_cmd_addr, addr & ~0x3fU); + t4_write_reg(adap, mc_bist_cmd_len, 64); + t4_write_reg(adap, mc_bist_data_pattern, 0xc); + t4_write_reg(adap, mc_bist_cmd, BIST_OPCODE(1) | START_BIST | + BIST_CMD_GAP(1)); + i = t4_wait_op_done(adap, mc_bist_cmd, START_BIST, 0, 10, 1); + if (i) + return i; + +#define MC_DATA(i) MC_BIST_STATUS_REG(mc_bist_status_rdata, i) + + for (i = 15; i >= 0; i--) + *data++ = htonl(t4_read_reg(adap, MC_DATA(i))); + if (ecc) + *ecc = t4_read_reg64(adap, MC_DATA(16)); +#undef MC_DATA + return 0; +} + +/** + * t4_edc_read - read from EDC through backdoor accesses + * @adap: the adapter + * @idx: which EDC to access + * @addr: address of first byte requested + * @data: 64 bytes of data containing the requested address + * @ecc: where to store the corresponding 64-bit ECC word + * + * Read 64 bytes of data from EDC starting at a 64-byte-aligned address + * that covers the requested address @addr. If @parity is not %NULL it + * is assigned the 64-bit ECC word for the read data. + */ +int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc) +{ + int i; + u32 edc_bist_cmd, edc_bist_cmd_addr, edc_bist_cmd_len; + u32 edc_bist_cmd_data_pattern, edc_bist_status_rdata; + + if (is_t4(adap->params.chip)) { + edc_bist_cmd = EDC_REG(EDC_BIST_CMD, idx); + edc_bist_cmd_addr = EDC_REG(EDC_BIST_CMD_ADDR, idx); + edc_bist_cmd_len = EDC_REG(EDC_BIST_CMD_LEN, idx); + edc_bist_cmd_data_pattern = EDC_REG(EDC_BIST_DATA_PATTERN, + idx); + edc_bist_status_rdata = EDC_REG(EDC_BIST_STATUS_RDATA, + idx); + } else { + edc_bist_cmd = EDC_REG_T5(EDC_H_BIST_CMD, idx); + edc_bist_cmd_addr = EDC_REG_T5(EDC_H_BIST_CMD_ADDR, idx); + edc_bist_cmd_len = EDC_REG_T5(EDC_H_BIST_CMD_LEN, idx); + edc_bist_cmd_data_pattern = + EDC_REG_T5(EDC_H_BIST_DATA_PATTERN, idx); + edc_bist_status_rdata = + EDC_REG_T5(EDC_H_BIST_STATUS_RDATA, idx); + } + + if (t4_read_reg(adap, edc_bist_cmd) & START_BIST) + return -EBUSY; + t4_write_reg(adap, edc_bist_cmd_addr, addr & ~0x3fU); + t4_write_reg(adap, edc_bist_cmd_len, 64); + t4_write_reg(adap, edc_bist_cmd_data_pattern, 0xc); + t4_write_reg(adap, edc_bist_cmd, + BIST_OPCODE(1) | BIST_CMD_GAP(1) | START_BIST); + i = t4_wait_op_done(adap, edc_bist_cmd, START_BIST, 0, 10, 1); + if (i) + return i; + +#define EDC_DATA(i) (EDC_BIST_STATUS_REG(edc_bist_status_rdata, i)) + + for (i = 15; i >= 0; i--) + *data++ = htonl(t4_read_reg(adap, EDC_DATA(i))); + if (ecc) + *ecc = t4_read_reg64(adap, EDC_DATA(16)); +#undef EDC_DATA + return 0; +} + +/* + * t4_mem_win_rw - read/write memory through PCIE memory window + * @adap: the adapter + * @addr: address of first byte requested + * @data: MEMWIN0_APERTURE bytes of data containing the requested address + * @dir: direction of transfer 1 => read, 0 => write + * + * Read/write MEMWIN0_APERTURE bytes of data from MC starting at a + * MEMWIN0_APERTURE-byte-aligned address that covers the requested + * address @addr. + */ +static int t4_mem_win_rw(struct adapter *adap, u32 addr, __be32 *data, int dir) +{ + int i; + u32 win_pf = is_t4(adap->params.chip) ? 0 : V_PFNUM(adap->fn); + + /* + * Setup offset into PCIE memory window. Address must be a + * MEMWIN0_APERTURE-byte-aligned address. (Read back MA register to + * ensure that changes propagate before we attempt to use the new + * values.) + */ + t4_write_reg(adap, PCIE_MEM_ACCESS_OFFSET, + (addr & ~(MEMWIN0_APERTURE - 1)) | win_pf); + t4_read_reg(adap, PCIE_MEM_ACCESS_OFFSET); + + /* Collecting data 4 bytes at a time upto MEMWIN0_APERTURE */ + for (i = 0; i < MEMWIN0_APERTURE; i = i+0x4) { + if (dir) + *data++ = (__force __be32) t4_read_reg(adap, + (MEMWIN0_BASE + i)); + else + t4_write_reg(adap, (MEMWIN0_BASE + i), + (__force u32) *data++); + } + + return 0; +} + +/** + * t4_memory_rw - read/write EDC 0, EDC 1 or MC via PCIE memory window + * @adap: the adapter + * @mtype: memory type: MEM_EDC0, MEM_EDC1 or MEM_MC + * @addr: address within indicated memory type + * @len: amount of memory to transfer + * @buf: host memory buffer + * @dir: direction of transfer 1 => read, 0 => write + * + * Reads/writes an [almost] arbitrary memory region in the firmware: the + * firmware memory address, length and host buffer must be aligned on + * 32-bit boudaries. The memory is transferred as a raw byte sequence + * from/to the firmware's memory. If this memory contains data + * structures which contain multi-byte integers, it's the callers + * responsibility to perform appropriate byte order conversions. + */ +static int t4_memory_rw(struct adapter *adap, int mtype, u32 addr, u32 len, + __be32 *buf, int dir) +{ + u32 pos, start, end, offset, memoffset; + u32 edc_size, mc_size; + int ret = 0; + __be32 *data; + + /* + * Argument sanity checks ... + */ + if ((addr & 0x3) || (len & 0x3)) + return -EINVAL; + + data = vmalloc(MEMWIN0_APERTURE); + if (!data) + return -ENOMEM; + + /* Offset into the region of memory which is being accessed + * MEM_EDC0 = 0 + * MEM_EDC1 = 1 + * MEM_MC = 2 -- T4 + * MEM_MC0 = 2 -- For T5 + * MEM_MC1 = 3 -- For T5 + */ + edc_size = EDRAM_SIZE_GET(t4_read_reg(adap, MA_EDRAM0_BAR)); + if (mtype != MEM_MC1) + memoffset = (mtype * (edc_size * 1024 * 1024)); + else { + mc_size = EXT_MEM_SIZE_GET(t4_read_reg(adap, + MA_EXT_MEMORY_BAR)); + memoffset = (MEM_MC0 * edc_size + mc_size) * 1024 * 1024; + } + + /* Determine the PCIE_MEM_ACCESS_OFFSET */ + addr = addr + memoffset; + + /* + * The underlaying EDC/MC read routines read MEMWIN0_APERTURE bytes + * at a time so we need to round down the start and round up the end. + * We'll start copying out of the first line at (addr - start) a word + * at a time. + */ + start = addr & ~(MEMWIN0_APERTURE-1); + end = (addr + len + MEMWIN0_APERTURE-1) & ~(MEMWIN0_APERTURE-1); + offset = (addr - start)/sizeof(__be32); + + for (pos = start; pos < end; pos += MEMWIN0_APERTURE, offset = 0) { + + /* + * If we're writing, copy the data from the caller's memory + * buffer + */ + if (!dir) { + /* + * If we're doing a partial write, then we need to do + * a read-modify-write ... + */ + if (offset || len < MEMWIN0_APERTURE) { + ret = t4_mem_win_rw(adap, pos, data, 1); + if (ret) + break; + } + while (offset < (MEMWIN0_APERTURE/sizeof(__be32)) && + len > 0) { + data[offset++] = *buf++; + len -= sizeof(__be32); + } + } + + /* + * Transfer a block of memory and bail if there's an error. + */ + ret = t4_mem_win_rw(adap, pos, data, dir); + if (ret) + break; + + /* + * If we're reading, copy the data into the caller's memory + * buffer. + */ + if (dir) + while (offset < (MEMWIN0_APERTURE/sizeof(__be32)) && + len > 0) { + *buf++ = data[offset++]; + len -= sizeof(__be32); + } + } + + vfree(data); + return ret; +} + +int t4_memory_write(struct adapter *adap, int mtype, u32 addr, u32 len, + __be32 *buf) +{ + return t4_memory_rw(adap, mtype, addr, len, buf, 0); +} + +#define EEPROM_STAT_ADDR 0x7bfc +#define VPD_BASE 0x400 +#define VPD_BASE_OLD 0 +#define VPD_LEN 1024 + +/** + * t4_seeprom_wp - enable/disable EEPROM write protection + * @adapter: the adapter + * @enable: whether to enable or disable write protection + * + * Enables or disables write protection on the serial EEPROM. + */ +int t4_seeprom_wp(struct adapter *adapter, bool enable) +{ + unsigned int v = enable ? 0xc : 0; + int ret = pci_write_vpd(adapter->pdev, EEPROM_STAT_ADDR, 4, &v); + return ret < 0 ? ret : 0; +} + +/** + * get_vpd_params - read VPD parameters from VPD EEPROM + * @adapter: adapter to read + * @p: where to store the parameters + * + * Reads card parameters stored in VPD EEPROM. + */ +int get_vpd_params(struct adapter *adapter, struct vpd_params *p) +{ + u32 cclk_param, cclk_val; + int i, ret, addr; + int ec, sn, pn; + u8 *vpd, csum; + unsigned int vpdr_len, kw_offset, id_len; + + vpd = vmalloc(VPD_LEN); + if (!vpd) + return -ENOMEM; + + ret = pci_read_vpd(adapter->pdev, VPD_BASE, sizeof(u32), vpd); + if (ret < 0) + goto out; + addr = *vpd == 0x82 ? VPD_BASE : VPD_BASE_OLD; + + ret = pci_read_vpd(adapter->pdev, addr, VPD_LEN, vpd); + if (ret < 0) + goto out; + + if (vpd[0] != PCI_VPD_LRDT_ID_STRING) { + dev_err(adapter->pdev_dev, "missing VPD ID string\n"); + ret = -EINVAL; + goto out; + } + + id_len = pci_vpd_lrdt_size(vpd); + if (id_len > ID_LEN) + id_len = ID_LEN; + + i = pci_vpd_find_tag(vpd, 0, VPD_LEN, PCI_VPD_LRDT_RO_DATA); + if (i < 0) { + dev_err(adapter->pdev_dev, "missing VPD-R section\n"); + ret = -EINVAL; + goto out; + } + + vpdr_len = pci_vpd_lrdt_size(&vpd[i]); + kw_offset = i + PCI_VPD_LRDT_TAG_SIZE; + if (vpdr_len + kw_offset > VPD_LEN) { + dev_err(adapter->pdev_dev, "bad VPD-R length %u\n", vpdr_len); + ret = -EINVAL; + goto out; + } + +#define FIND_VPD_KW(var, name) do { \ + var = pci_vpd_find_info_keyword(vpd, kw_offset, vpdr_len, name); \ + if (var < 0) { \ + dev_err(adapter->pdev_dev, "missing VPD keyword " name "\n"); \ + ret = -EINVAL; \ + goto out; \ + } \ + var += PCI_VPD_INFO_FLD_HDR_SIZE; \ +} while (0) + + FIND_VPD_KW(i, "RV"); + for (csum = 0; i >= 0; i--) + csum += vpd[i]; + + if (csum) { + dev_err(adapter->pdev_dev, + "corrupted VPD EEPROM, actual csum %u\n", csum); + ret = -EINVAL; + goto out; + } + + FIND_VPD_KW(ec, "EC"); + FIND_VPD_KW(sn, "SN"); + FIND_VPD_KW(pn, "PN"); +#undef FIND_VPD_KW + + memcpy(p->id, vpd + PCI_VPD_LRDT_TAG_SIZE, id_len); + strim(p->id); + memcpy(p->ec, vpd + ec, EC_LEN); + strim(p->ec); + i = pci_vpd_info_field_size(vpd + sn - PCI_VPD_INFO_FLD_HDR_SIZE); + memcpy(p->sn, vpd + sn, min(i, SERNUM_LEN)); + strim(p->sn); + memcpy(p->pn, vpd + pn, min(i, PN_LEN)); + strim(p->pn); + + /* + * Ask firmware for the Core Clock since it knows how to translate the + * Reference Clock ('V2') VPD field into a Core Clock value ... + */ + cclk_param = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | + FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CCLK)); + ret = t4_query_params(adapter, adapter->mbox, 0, 0, + 1, &cclk_param, &cclk_val); + +out: + vfree(vpd); + if (ret) + return ret; + p->cclk = cclk_val; + + return 0; +} + +/* serial flash and firmware constants */ +enum { + SF_ATTEMPTS = 10, /* max retries for SF operations */ + + /* flash command opcodes */ + SF_PROG_PAGE = 2, /* program page */ + SF_WR_DISABLE = 4, /* disable writes */ + SF_RD_STATUS = 5, /* read status register */ + SF_WR_ENABLE = 6, /* enable writes */ + SF_RD_DATA_FAST = 0xb, /* read flash */ + SF_RD_ID = 0x9f, /* read ID */ + SF_ERASE_SECTOR = 0xd8, /* erase sector */ + + FW_MAX_SIZE = 16 * SF_SEC_SIZE, +}; + +/** + * sf1_read - read data from the serial flash + * @adapter: the adapter + * @byte_cnt: number of bytes to read + * @cont: whether another operation will be chained + * @lock: whether to lock SF for PL access only + * @valp: where to store the read data + * + * Reads up to 4 bytes of data from the serial flash. The location of + * the read needs to be specified prior to calling this by issuing the + * appropriate commands to the serial flash. + */ +static int sf1_read(struct adapter *adapter, unsigned int byte_cnt, int cont, + int lock, u32 *valp) +{ + int ret; + + if (!byte_cnt || byte_cnt > 4) + return -EINVAL; + if (t4_read_reg(adapter, SF_OP) & SF_BUSY) + return -EBUSY; + cont = cont ? SF_CONT : 0; + lock = lock ? SF_LOCK : 0; + t4_write_reg(adapter, SF_OP, lock | cont | BYTECNT(byte_cnt - 1)); + ret = t4_wait_op_done(adapter, SF_OP, SF_BUSY, 0, SF_ATTEMPTS, 5); + if (!ret) + *valp = t4_read_reg(adapter, SF_DATA); + return ret; +} + +/** + * sf1_write - write data to the serial flash + * @adapter: the adapter + * @byte_cnt: number of bytes to write + * @cont: whether another operation will be chained + * @lock: whether to lock SF for PL access only + * @val: value to write + * + * Writes up to 4 bytes of data to the serial flash. The location of + * the write needs to be specified prior to calling this by issuing the + * appropriate commands to the serial flash. + */ +static int sf1_write(struct adapter *adapter, unsigned int byte_cnt, int cont, + int lock, u32 val) +{ + if (!byte_cnt || byte_cnt > 4) + return -EINVAL; + if (t4_read_reg(adapter, SF_OP) & SF_BUSY) + return -EBUSY; + cont = cont ? SF_CONT : 0; + lock = lock ? SF_LOCK : 0; + t4_write_reg(adapter, SF_DATA, val); + t4_write_reg(adapter, SF_OP, lock | + cont | BYTECNT(byte_cnt - 1) | OP_WR); + return t4_wait_op_done(adapter, SF_OP, SF_BUSY, 0, SF_ATTEMPTS, 5); +} + +/** + * flash_wait_op - wait for a flash operation to complete + * @adapter: the adapter + * @attempts: max number of polls of the status register + * @delay: delay between polls in ms + * + * Wait for a flash operation to complete by polling the status register. + */ +static int flash_wait_op(struct adapter *adapter, int attempts, int delay) +{ + int ret; + u32 status; + + while (1) { + if ((ret = sf1_write(adapter, 1, 1, 1, SF_RD_STATUS)) != 0 || + (ret = sf1_read(adapter, 1, 0, 1, &status)) != 0) + return ret; + if (!(status & 1)) + return 0; + if (--attempts == 0) + return -EAGAIN; + if (delay) + msleep(delay); + } +} + +/** + * t4_read_flash - read words from serial flash + * @adapter: the adapter + * @addr: the start address for the read + * @nwords: how many 32-bit words to read + * @data: where to store the read data + * @byte_oriented: whether to store data as bytes or as words + * + * Read the specified number of 32-bit words from the serial flash. + * If @byte_oriented is set the read data is stored as a byte array + * (i.e., big-endian), otherwise as 32-bit words in the platform's + * natural endianess. + */ +static int t4_read_flash(struct adapter *adapter, unsigned int addr, + unsigned int nwords, u32 *data, int byte_oriented) +{ + int ret; + + if (addr + nwords * sizeof(u32) > adapter->params.sf_size || (addr & 3)) + return -EINVAL; + + addr = swab32(addr) | SF_RD_DATA_FAST; + + if ((ret = sf1_write(adapter, 4, 1, 0, addr)) != 0 || + (ret = sf1_read(adapter, 1, 1, 0, data)) != 0) + return ret; + + for ( ; nwords; nwords--, data++) { + ret = sf1_read(adapter, 4, nwords > 1, nwords == 1, data); + if (nwords == 1) + t4_write_reg(adapter, SF_OP, 0); /* unlock SF */ + if (ret) + return ret; + if (byte_oriented) + *data = (__force __u32) (htonl(*data)); + } + return 0; +} + +/** + * t4_write_flash - write up to a page of data to the serial flash + * @adapter: the adapter + * @addr: the start address to write + * @n: length of data to write in bytes + * @data: the data to write + * + * Writes up to a page of data (256 bytes) to the serial flash starting + * at the given address. All the data must be written to the same page. + */ +static int t4_write_flash(struct adapter *adapter, unsigned int addr, + unsigned int n, const u8 *data) +{ + int ret; + u32 buf[64]; + unsigned int i, c, left, val, offset = addr & 0xff; + + if (addr >= adapter->params.sf_size || offset + n > SF_PAGE_SIZE) + return -EINVAL; + + val = swab32(addr) | SF_PROG_PAGE; + + if ((ret = sf1_write(adapter, 1, 0, 1, SF_WR_ENABLE)) != 0 || + (ret = sf1_write(adapter, 4, 1, 1, val)) != 0) + goto unlock; + + for (left = n; left; left -= c) { + c = min(left, 4U); + for (val = 0, i = 0; i < c; ++i) + val = (val << 8) + *data++; + + ret = sf1_write(adapter, c, c != left, 1, val); + if (ret) + goto unlock; + } + ret = flash_wait_op(adapter, 8, 1); + if (ret) + goto unlock; + + t4_write_reg(adapter, SF_OP, 0); /* unlock SF */ + + /* Read the page to verify the write succeeded */ + ret = t4_read_flash(adapter, addr & ~0xff, ARRAY_SIZE(buf), buf, 1); + if (ret) + return ret; + + if (memcmp(data - n, (u8 *)buf + offset, n)) { + dev_err(adapter->pdev_dev, + "failed to correctly write the flash page at %#x\n", + addr); + return -EIO; + } + return 0; + +unlock: + t4_write_reg(adapter, SF_OP, 0); /* unlock SF */ + return ret; +} + +/** + * t4_get_fw_version - read the firmware version + * @adapter: the adapter + * @vers: where to place the version + * + * Reads the FW version from flash. + */ +int t4_get_fw_version(struct adapter *adapter, u32 *vers) +{ + return t4_read_flash(adapter, FLASH_FW_START + + offsetof(struct fw_hdr, fw_ver), 1, + vers, 0); +} + +/** + * t4_get_tp_version - read the TP microcode version + * @adapter: the adapter + * @vers: where to place the version + * + * Reads the TP microcode version from flash. + */ +int t4_get_tp_version(struct adapter *adapter, u32 *vers) +{ + return t4_read_flash(adapter, FLASH_FW_START + + offsetof(struct fw_hdr, tp_microcode_ver), + 1, vers, 0); +} + +/* Is the given firmware API compatible with the one the driver was compiled + * with? + */ +static int fw_compatible(const struct fw_hdr *hdr1, const struct fw_hdr *hdr2) +{ + + /* short circuit if it's the exact same firmware version */ + if (hdr1->chip == hdr2->chip && hdr1->fw_ver == hdr2->fw_ver) + return 1; + +#define SAME_INTF(x) (hdr1->intfver_##x == hdr2->intfver_##x) + if (hdr1->chip == hdr2->chip && SAME_INTF(nic) && SAME_INTF(vnic) && + SAME_INTF(ri) && SAME_INTF(iscsi) && SAME_INTF(fcoe)) + return 1; +#undef SAME_INTF + + return 0; +} + +/* The firmware in the filesystem is usable, but should it be installed? + * This routine explains itself in detail if it indicates the filesystem + * firmware should be installed. + */ +static int should_install_fs_fw(struct adapter *adap, int card_fw_usable, + int k, int c) +{ + const char *reason; + + if (!card_fw_usable) { + reason = "incompatible or unusable"; + goto install; + } + + if (k > c) { + reason = "older than the version supported with this driver"; + goto install; + } + + return 0; + +install: + dev_err(adap->pdev_dev, "firmware on card (%u.%u.%u.%u) is %s, " + "installing firmware %u.%u.%u.%u on card.\n", + FW_HDR_FW_VER_MAJOR_GET(c), FW_HDR_FW_VER_MINOR_GET(c), + FW_HDR_FW_VER_MICRO_GET(c), FW_HDR_FW_VER_BUILD_GET(c), reason, + FW_HDR_FW_VER_MAJOR_GET(k), FW_HDR_FW_VER_MINOR_GET(k), + FW_HDR_FW_VER_MICRO_GET(k), FW_HDR_FW_VER_BUILD_GET(k)); + + return 1; +} + +int t4_prep_fw(struct adapter *adap, struct fw_info *fw_info, + const u8 *fw_data, unsigned int fw_size, + struct fw_hdr *card_fw, enum dev_state state, + int *reset) +{ + int ret, card_fw_usable, fs_fw_usable; + const struct fw_hdr *fs_fw; + const struct fw_hdr *drv_fw; + + drv_fw = &fw_info->fw_hdr; + + /* Read the header of the firmware on the card */ + ret = -t4_read_flash(adap, FLASH_FW_START, + sizeof(*card_fw) / sizeof(uint32_t), + (uint32_t *)card_fw, 1); + if (ret == 0) { + card_fw_usable = fw_compatible(drv_fw, (const void *)card_fw); + } else { + dev_err(adap->pdev_dev, + "Unable to read card's firmware header: %d\n", ret); + card_fw_usable = 0; + } + + if (fw_data != NULL) { + fs_fw = (const void *)fw_data; + fs_fw_usable = fw_compatible(drv_fw, fs_fw); + } else { + fs_fw = NULL; + fs_fw_usable = 0; + } + + if (card_fw_usable && card_fw->fw_ver == drv_fw->fw_ver && + (!fs_fw_usable || fs_fw->fw_ver == drv_fw->fw_ver)) { + /* Common case: the firmware on the card is an exact match and + * the filesystem one is an exact match too, or the filesystem + * one is absent/incompatible. + */ + } else if (fs_fw_usable && state == DEV_STATE_UNINIT && + should_install_fs_fw(adap, card_fw_usable, + be32_to_cpu(fs_fw->fw_ver), + be32_to_cpu(card_fw->fw_ver))) { + ret = -t4_fw_upgrade(adap, adap->mbox, fw_data, + fw_size, 0); + if (ret != 0) { + dev_err(adap->pdev_dev, + "failed to install firmware: %d\n", ret); + goto bye; + } + + /* Installed successfully, update the cached header too. */ + memcpy(card_fw, fs_fw, sizeof(*card_fw)); + card_fw_usable = 1; + *reset = 0; /* already reset as part of load_fw */ + } + + if (!card_fw_usable) { + uint32_t d, c, k; + + d = be32_to_cpu(drv_fw->fw_ver); + c = be32_to_cpu(card_fw->fw_ver); + k = fs_fw ? be32_to_cpu(fs_fw->fw_ver) : 0; + + dev_err(adap->pdev_dev, "Cannot find a usable firmware: " + "chip state %d, " + "driver compiled with %d.%d.%d.%d, " + "card has %d.%d.%d.%d, filesystem has %d.%d.%d.%d\n", + state, + FW_HDR_FW_VER_MAJOR_GET(d), FW_HDR_FW_VER_MINOR_GET(d), + FW_HDR_FW_VER_MICRO_GET(d), FW_HDR_FW_VER_BUILD_GET(d), + FW_HDR_FW_VER_MAJOR_GET(c), FW_HDR_FW_VER_MINOR_GET(c), + FW_HDR_FW_VER_MICRO_GET(c), FW_HDR_FW_VER_BUILD_GET(c), + FW_HDR_FW_VER_MAJOR_GET(k), FW_HDR_FW_VER_MINOR_GET(k), + FW_HDR_FW_VER_MICRO_GET(k), FW_HDR_FW_VER_BUILD_GET(k)); + ret = EINVAL; + goto bye; + } + + /* We're using whatever's on the card and it's known to be good. */ + adap->params.fw_vers = be32_to_cpu(card_fw->fw_ver); + adap->params.tp_vers = be32_to_cpu(card_fw->tp_microcode_ver); + +bye: + return ret; +} + +/** + * t4_flash_erase_sectors - erase a range of flash sectors + * @adapter: the adapter + * @start: the first sector to erase + * @end: the last sector to erase + * + * Erases the sectors in the given inclusive range. + */ +static int t4_flash_erase_sectors(struct adapter *adapter, int start, int end) +{ + int ret = 0; + + while (start <= end) { + if ((ret = sf1_write(adapter, 1, 0, 1, SF_WR_ENABLE)) != 0 || + (ret = sf1_write(adapter, 4, 0, 1, + SF_ERASE_SECTOR | (start << 8))) != 0 || + (ret = flash_wait_op(adapter, 14, 500)) != 0) { + dev_err(adapter->pdev_dev, + "erase of flash sector %d failed, error %d\n", + start, ret); + break; + } + start++; + } + t4_write_reg(adapter, SF_OP, 0); /* unlock SF */ + return ret; +} + +/** + * t4_flash_cfg_addr - return the address of the flash configuration file + * @adapter: the adapter + * + * Return the address within the flash where the Firmware Configuration + * File is stored. + */ +unsigned int t4_flash_cfg_addr(struct adapter *adapter) +{ + if (adapter->params.sf_size == 0x100000) + return FLASH_FPGA_CFG_START; + else + return FLASH_CFG_START; +} + +/** + * t4_load_fw - download firmware + * @adap: the adapter + * @fw_data: the firmware image to write + * @size: image size + * + * Write the supplied firmware image to the card's serial flash. + */ +int t4_load_fw(struct adapter *adap, const u8 *fw_data, unsigned int size) +{ + u32 csum; + int ret, addr; + unsigned int i; + u8 first_page[SF_PAGE_SIZE]; + const __be32 *p = (const __be32 *)fw_data; + const struct fw_hdr *hdr = (const struct fw_hdr *)fw_data; + unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec; + unsigned int fw_img_start = adap->params.sf_fw_start; + unsigned int fw_start_sec = fw_img_start / sf_sec_size; + + if (!size) { + dev_err(adap->pdev_dev, "FW image has no data\n"); + return -EINVAL; + } + if (size & 511) { + dev_err(adap->pdev_dev, + "FW image size not multiple of 512 bytes\n"); + return -EINVAL; + } + if (ntohs(hdr->len512) * 512 != size) { + dev_err(adap->pdev_dev, + "FW image size differs from size in FW header\n"); + return -EINVAL; + } + if (size > FW_MAX_SIZE) { + dev_err(adap->pdev_dev, "FW image too large, max is %u bytes\n", + FW_MAX_SIZE); + return -EFBIG; + } + + for (csum = 0, i = 0; i < size / sizeof(csum); i++) + csum += ntohl(p[i]); + + if (csum != 0xffffffff) { + dev_err(adap->pdev_dev, + "corrupted firmware image, checksum %#x\n", csum); + return -EINVAL; + } + + i = DIV_ROUND_UP(size, sf_sec_size); /* # of sectors spanned */ + ret = t4_flash_erase_sectors(adap, fw_start_sec, fw_start_sec + i - 1); + if (ret) + goto out; + + /* + * We write the correct version at the end so the driver can see a bad + * version if the FW write fails. Start by writing a copy of the + * first page with a bad version. + */ + memcpy(first_page, fw_data, SF_PAGE_SIZE); + ((struct fw_hdr *)first_page)->fw_ver = htonl(0xffffffff); + ret = t4_write_flash(adap, fw_img_start, SF_PAGE_SIZE, first_page); + if (ret) + goto out; + + addr = fw_img_start; + for (size -= SF_PAGE_SIZE; size; size -= SF_PAGE_SIZE) { + addr += SF_PAGE_SIZE; + fw_data += SF_PAGE_SIZE; + ret = t4_write_flash(adap, addr, SF_PAGE_SIZE, fw_data); + if (ret) + goto out; + } + + ret = t4_write_flash(adap, + fw_img_start + offsetof(struct fw_hdr, fw_ver), + sizeof(hdr->fw_ver), (const u8 *)&hdr->fw_ver); +out: + if (ret) + dev_err(adap->pdev_dev, "firmware download failed, error %d\n", + ret); + return ret; +} + +#define ADVERT_MASK (FW_PORT_CAP_SPEED_100M | FW_PORT_CAP_SPEED_1G |\ + FW_PORT_CAP_SPEED_10G | FW_PORT_CAP_SPEED_40G | \ + FW_PORT_CAP_ANEG) + +/** + * t4_link_start - apply link configuration to MAC/PHY + * @phy: the PHY to setup + * @mac: the MAC to setup + * @lc: the requested link configuration + * + * Set up a port's MAC and PHY according to a desired link configuration. + * - If the PHY can auto-negotiate first decide what to advertise, then + * enable/disable auto-negotiation as desired, and reset. + * - If the PHY does not auto-negotiate just reset it. + * - If auto-negotiation is off set the MAC to the proper speed/duplex/FC, + * otherwise do it later based on the outcome of auto-negotiation. + */ +int t4_link_start(struct adapter *adap, unsigned int mbox, unsigned int port, + struct link_config *lc) +{ + struct fw_port_cmd c; + unsigned int fc = 0, mdi = FW_PORT_MDI(FW_PORT_MDI_AUTO); + + lc->link_ok = 0; + if (lc->requested_fc & PAUSE_RX) + fc |= FW_PORT_CAP_FC_RX; + if (lc->requested_fc & PAUSE_TX) + fc |= FW_PORT_CAP_FC_TX; + + memset(&c, 0, sizeof(c)); + c.op_to_portid = htonl(FW_CMD_OP(FW_PORT_CMD) | FW_CMD_REQUEST | + FW_CMD_EXEC | FW_PORT_CMD_PORTID(port)); + c.action_to_len16 = htonl(FW_PORT_CMD_ACTION(FW_PORT_ACTION_L1_CFG) | + FW_LEN16(c)); + + if (!(lc->supported & FW_PORT_CAP_ANEG)) { + c.u.l1cfg.rcap = htonl((lc->supported & ADVERT_MASK) | fc); + lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX); + } else if (lc->autoneg == AUTONEG_DISABLE) { + c.u.l1cfg.rcap = htonl(lc->requested_speed | fc | mdi); + lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX); + } else + c.u.l1cfg.rcap = htonl(lc->advertising | fc | mdi); + + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_restart_aneg - restart autonegotiation + * @adap: the adapter + * @mbox: mbox to use for the FW command + * @port: the port id + * + * Restarts autonegotiation for the selected port. + */ +int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port) +{ + struct fw_port_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_portid = htonl(FW_CMD_OP(FW_PORT_CMD) | FW_CMD_REQUEST | + FW_CMD_EXEC | FW_PORT_CMD_PORTID(port)); + c.action_to_len16 = htonl(FW_PORT_CMD_ACTION(FW_PORT_ACTION_L1_CFG) | + FW_LEN16(c)); + c.u.l1cfg.rcap = htonl(FW_PORT_CAP_ANEG); + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +typedef void (*int_handler_t)(struct adapter *adap); + +struct intr_info { + unsigned int mask; /* bits to check in interrupt status */ + const char *msg; /* message to print or NULL */ + short stat_idx; /* stat counter to increment or -1 */ + unsigned short fatal; /* whether the condition reported is fatal */ + int_handler_t int_handler; /* platform-specific int handler */ +}; + +/** + * t4_handle_intr_status - table driven interrupt handler + * @adapter: the adapter that generated the interrupt + * @reg: the interrupt status register to process + * @acts: table of interrupt actions + * + * A table driven interrupt handler that applies a set of masks to an + * interrupt status word and performs the corresponding actions if the + * interrupts described by the mask have occurred. The actions include + * optionally emitting a warning or alert message. The table is terminated + * by an entry specifying mask 0. Returns the number of fatal interrupt + * conditions. + */ +static int t4_handle_intr_status(struct adapter *adapter, unsigned int reg, + const struct intr_info *acts) +{ + int fatal = 0; + unsigned int mask = 0; + unsigned int status = t4_read_reg(adapter, reg); + + for ( ; acts->mask; ++acts) { + if (!(status & acts->mask)) + continue; + if (acts->fatal) { + fatal++; + dev_alert(adapter->pdev_dev, "%s (0x%x)\n", acts->msg, + status & acts->mask); + } else if (acts->msg && printk_ratelimit()) + dev_warn(adapter->pdev_dev, "%s (0x%x)\n", acts->msg, + status & acts->mask); + if (acts->int_handler) + acts->int_handler(adapter); + mask |= acts->mask; + } + status &= mask; + if (status) /* clear processed interrupts */ + t4_write_reg(adapter, reg, status); + return fatal; +} + +/* + * Interrupt handler for the PCIE module. + */ +static void pcie_intr_handler(struct adapter *adapter) +{ + static const struct intr_info sysbus_intr_info[] = { + { RNPP, "RXNP array parity error", -1, 1 }, + { RPCP, "RXPC array parity error", -1, 1 }, + { RCIP, "RXCIF array parity error", -1, 1 }, + { RCCP, "Rx completions control array parity error", -1, 1 }, + { RFTP, "RXFT array parity error", -1, 1 }, + { 0 } + }; + static const struct intr_info pcie_port_intr_info[] = { + { TPCP, "TXPC array parity error", -1, 1 }, + { TNPP, "TXNP array parity error", -1, 1 }, + { TFTP, "TXFT array parity error", -1, 1 }, + { TCAP, "TXCA array parity error", -1, 1 }, + { TCIP, "TXCIF array parity error", -1, 1 }, + { RCAP, "RXCA array parity error", -1, 1 }, + { OTDD, "outbound request TLP discarded", -1, 1 }, + { RDPE, "Rx data parity error", -1, 1 }, + { TDUE, "Tx uncorrectable data error", -1, 1 }, + { 0 } + }; + static const struct intr_info pcie_intr_info[] = { + { MSIADDRLPERR, "MSI AddrL parity error", -1, 1 }, + { MSIADDRHPERR, "MSI AddrH parity error", -1, 1 }, + { MSIDATAPERR, "MSI data parity error", -1, 1 }, + { MSIXADDRLPERR, "MSI-X AddrL parity error", -1, 1 }, + { MSIXADDRHPERR, "MSI-X AddrH parity error", -1, 1 }, + { MSIXDATAPERR, "MSI-X data parity error", -1, 1 }, + { MSIXDIPERR, "MSI-X DI parity error", -1, 1 }, + { PIOCPLPERR, "PCI PIO completion FIFO parity error", -1, 1 }, + { PIOREQPERR, "PCI PIO request FIFO parity error", -1, 1 }, + { TARTAGPERR, "PCI PCI target tag FIFO parity error", -1, 1 }, + { CCNTPERR, "PCI CMD channel count parity error", -1, 1 }, + { CREQPERR, "PCI CMD channel request parity error", -1, 1 }, + { CRSPPERR, "PCI CMD channel response parity error", -1, 1 }, + { DCNTPERR, "PCI DMA channel count parity error", -1, 1 }, + { DREQPERR, "PCI DMA channel request parity error", -1, 1 }, + { DRSPPERR, "PCI DMA channel response parity error", -1, 1 }, + { HCNTPERR, "PCI HMA channel count parity error", -1, 1 }, + { HREQPERR, "PCI HMA channel request parity error", -1, 1 }, + { HRSPPERR, "PCI HMA channel response parity error", -1, 1 }, + { CFGSNPPERR, "PCI config snoop FIFO parity error", -1, 1 }, + { FIDPERR, "PCI FID parity error", -1, 1 }, + { INTXCLRPERR, "PCI INTx clear parity error", -1, 1 }, + { MATAGPERR, "PCI MA tag parity error", -1, 1 }, + { PIOTAGPERR, "PCI PIO tag parity error", -1, 1 }, + { RXCPLPERR, "PCI Rx completion parity error", -1, 1 }, + { RXWRPERR, "PCI Rx write parity error", -1, 1 }, + { RPLPERR, "PCI replay buffer parity error", -1, 1 }, + { PCIESINT, "PCI core secondary fault", -1, 1 }, + { PCIEPINT, "PCI core primary fault", -1, 1 }, + { UNXSPLCPLERR, "PCI unexpected split completion error", -1, 0 }, + { 0 } + }; + + static struct intr_info t5_pcie_intr_info[] = { + { MSTGRPPERR, "Master Response Read Queue parity error", + -1, 1 }, + { MSTTIMEOUTPERR, "Master Timeout FIFO parity error", -1, 1 }, + { MSIXSTIPERR, "MSI-X STI SRAM parity error", -1, 1 }, + { MSIXADDRLPERR, "MSI-X AddrL parity error", -1, 1 }, + { MSIXADDRHPERR, "MSI-X AddrH parity error", -1, 1 }, + { MSIXDATAPERR, "MSI-X data parity error", -1, 1 }, + { MSIXDIPERR, "MSI-X DI parity error", -1, 1 }, + { PIOCPLGRPPERR, "PCI PIO completion Group FIFO parity error", + -1, 1 }, + { PIOREQGRPPERR, "PCI PIO request Group FIFO parity error", + -1, 1 }, + { TARTAGPERR, "PCI PCI target tag FIFO parity error", -1, 1 }, + { MSTTAGQPERR, "PCI master tag queue parity error", -1, 1 }, + { CREQPERR, "PCI CMD channel request parity error", -1, 1 }, + { CRSPPERR, "PCI CMD channel response parity error", -1, 1 }, + { DREQWRPERR, "PCI DMA channel write request parity error", + -1, 1 }, + { DREQPERR, "PCI DMA channel request parity error", -1, 1 }, + { DRSPPERR, "PCI DMA channel response parity error", -1, 1 }, + { HREQWRPERR, "PCI HMA channel count parity error", -1, 1 }, + { HREQPERR, "PCI HMA channel request parity error", -1, 1 }, + { HRSPPERR, "PCI HMA channel response parity error", -1, 1 }, + { CFGSNPPERR, "PCI config snoop FIFO parity error", -1, 1 }, + { FIDPERR, "PCI FID parity error", -1, 1 }, + { VFIDPERR, "PCI INTx clear parity error", -1, 1 }, + { MAGRPPERR, "PCI MA group FIFO parity error", -1, 1 }, + { PIOTAGPERR, "PCI PIO tag parity error", -1, 1 }, + { IPRXHDRGRPPERR, "PCI IP Rx header group parity error", + -1, 1 }, + { IPRXDATAGRPPERR, "PCI IP Rx data group parity error", -1, 1 }, + { RPLPERR, "PCI IP replay buffer parity error", -1, 1 }, + { IPSOTPERR, "PCI IP SOT buffer parity error", -1, 1 }, + { TRGT1GRPPERR, "PCI TRGT1 group FIFOs parity error", -1, 1 }, + { READRSPERR, "Outbound read error", -1, 0 }, + { 0 } + }; + + int fat; + + fat = t4_handle_intr_status(adapter, + PCIE_CORE_UTL_SYSTEM_BUS_AGENT_STATUS, + sysbus_intr_info) + + t4_handle_intr_status(adapter, + PCIE_CORE_UTL_PCI_EXPRESS_PORT_STATUS, + pcie_port_intr_info) + + t4_handle_intr_status(adapter, PCIE_INT_CAUSE, + is_t4(adapter->params.chip) ? + pcie_intr_info : t5_pcie_intr_info); + + if (fat) + t4_fatal_err(adapter); +} + +/* + * TP interrupt handler. + */ +static void tp_intr_handler(struct adapter *adapter) +{ + static const struct intr_info tp_intr_info[] = { + { 0x3fffffff, "TP parity error", -1, 1 }, + { FLMTXFLSTEMPTY, "TP out of Tx pages", -1, 1 }, + { 0 } + }; + + if (t4_handle_intr_status(adapter, TP_INT_CAUSE, tp_intr_info)) + t4_fatal_err(adapter); +} + +/* + * SGE interrupt handler. + */ +static void sge_intr_handler(struct adapter *adapter) +{ + u64 v; + + static const struct intr_info sge_intr_info[] = { + { ERR_CPL_EXCEED_IQE_SIZE, + "SGE received CPL exceeding IQE size", -1, 1 }, + { ERR_INVALID_CIDX_INC, + "SGE GTS CIDX increment too large", -1, 0 }, + { ERR_CPL_OPCODE_0, "SGE received 0-length CPL", -1, 0 }, + { DBFIFO_LP_INT, NULL, -1, 0, t4_db_full }, + { DBFIFO_HP_INT, NULL, -1, 0, t4_db_full }, + { ERR_DROPPED_DB, NULL, -1, 0, t4_db_dropped }, + { ERR_DATA_CPL_ON_HIGH_QID1 | ERR_DATA_CPL_ON_HIGH_QID0, + "SGE IQID > 1023 received CPL for FL", -1, 0 }, + { ERR_BAD_DB_PIDX3, "SGE DBP 3 pidx increment too large", -1, + 0 }, + { ERR_BAD_DB_PIDX2, "SGE DBP 2 pidx increment too large", -1, + 0 }, + { ERR_BAD_DB_PIDX1, "SGE DBP 1 pidx increment too large", -1, + 0 }, + { ERR_BAD_DB_PIDX0, "SGE DBP 0 pidx increment too large", -1, + 0 }, + { ERR_ING_CTXT_PRIO, + "SGE too many priority ingress contexts", -1, 0 }, + { ERR_EGR_CTXT_PRIO, + "SGE too many priority egress contexts", -1, 0 }, + { INGRESS_SIZE_ERR, "SGE illegal ingress QID", -1, 0 }, + { EGRESS_SIZE_ERR, "SGE illegal egress QID", -1, 0 }, + { 0 } + }; + + v = (u64)t4_read_reg(adapter, SGE_INT_CAUSE1) | + ((u64)t4_read_reg(adapter, SGE_INT_CAUSE2) << 32); + if (v) { + dev_alert(adapter->pdev_dev, "SGE parity error (%#llx)\n", + (unsigned long long)v); + t4_write_reg(adapter, SGE_INT_CAUSE1, v); + t4_write_reg(adapter, SGE_INT_CAUSE2, v >> 32); + } + + if (t4_handle_intr_status(adapter, SGE_INT_CAUSE3, sge_intr_info) || + v != 0) + t4_fatal_err(adapter); +} + +/* + * CIM interrupt handler. + */ +static void cim_intr_handler(struct adapter *adapter) +{ + static const struct intr_info cim_intr_info[] = { + { PREFDROPINT, "CIM control register prefetch drop", -1, 1 }, + { OBQPARERR, "CIM OBQ parity error", -1, 1 }, + { IBQPARERR, "CIM IBQ parity error", -1, 1 }, + { MBUPPARERR, "CIM mailbox uP parity error", -1, 1 }, + { MBHOSTPARERR, "CIM mailbox host parity error", -1, 1 }, + { TIEQINPARERRINT, "CIM TIEQ outgoing parity error", -1, 1 }, + { TIEQOUTPARERRINT, "CIM TIEQ incoming parity error", -1, 1 }, + { 0 } + }; + static const struct intr_info cim_upintr_info[] = { + { RSVDSPACEINT, "CIM reserved space access", -1, 1 }, + { ILLTRANSINT, "CIM illegal transaction", -1, 1 }, + { ILLWRINT, "CIM illegal write", -1, 1 }, + { ILLRDINT, "CIM illegal read", -1, 1 }, + { ILLRDBEINT, "CIM illegal read BE", -1, 1 }, + { ILLWRBEINT, "CIM illegal write BE", -1, 1 }, + { SGLRDBOOTINT, "CIM single read from boot space", -1, 1 }, + { SGLWRBOOTINT, "CIM single write to boot space", -1, 1 }, + { BLKWRBOOTINT, "CIM block write to boot space", -1, 1 }, + { SGLRDFLASHINT, "CIM single read from flash space", -1, 1 }, + { SGLWRFLASHINT, "CIM single write to flash space", -1, 1 }, + { BLKWRFLASHINT, "CIM block write to flash space", -1, 1 }, + { SGLRDEEPROMINT, "CIM single EEPROM read", -1, 1 }, + { SGLWREEPROMINT, "CIM single EEPROM write", -1, 1 }, + { BLKRDEEPROMINT, "CIM block EEPROM read", -1, 1 }, + { BLKWREEPROMINT, "CIM block EEPROM write", -1, 1 }, + { SGLRDCTLINT , "CIM single read from CTL space", -1, 1 }, + { SGLWRCTLINT , "CIM single write to CTL space", -1, 1 }, + { BLKRDCTLINT , "CIM block read from CTL space", -1, 1 }, + { BLKWRCTLINT , "CIM block write to CTL space", -1, 1 }, + { SGLRDPLINT , "CIM single read from PL space", -1, 1 }, + { SGLWRPLINT , "CIM single write to PL space", -1, 1 }, + { BLKRDPLINT , "CIM block read from PL space", -1, 1 }, + { BLKWRPLINT , "CIM block write to PL space", -1, 1 }, + { REQOVRLOOKUPINT , "CIM request FIFO overwrite", -1, 1 }, + { RSPOVRLOOKUPINT , "CIM response FIFO overwrite", -1, 1 }, + { TIMEOUTINT , "CIM PIF timeout", -1, 1 }, + { TIMEOUTMAINT , "CIM PIF MA timeout", -1, 1 }, + { 0 } + }; + + int fat; + + fat = t4_handle_intr_status(adapter, CIM_HOST_INT_CAUSE, + cim_intr_info) + + t4_handle_intr_status(adapter, CIM_HOST_UPACC_INT_CAUSE, + cim_upintr_info); + if (fat) + t4_fatal_err(adapter); +} + +/* + * ULP RX interrupt handler. + */ +static void ulprx_intr_handler(struct adapter *adapter) +{ + static const struct intr_info ulprx_intr_info[] = { + { 0x1800000, "ULPRX context error", -1, 1 }, + { 0x7fffff, "ULPRX parity error", -1, 1 }, + { 0 } + }; + + if (t4_handle_intr_status(adapter, ULP_RX_INT_CAUSE, ulprx_intr_info)) + t4_fatal_err(adapter); +} + +/* + * ULP TX interrupt handler. + */ +static void ulptx_intr_handler(struct adapter *adapter) +{ + static const struct intr_info ulptx_intr_info[] = { + { PBL_BOUND_ERR_CH3, "ULPTX channel 3 PBL out of bounds", -1, + 0 }, + { PBL_BOUND_ERR_CH2, "ULPTX channel 2 PBL out of bounds", -1, + 0 }, + { PBL_BOUND_ERR_CH1, "ULPTX channel 1 PBL out of bounds", -1, + 0 }, + { PBL_BOUND_ERR_CH0, "ULPTX channel 0 PBL out of bounds", -1, + 0 }, + { 0xfffffff, "ULPTX parity error", -1, 1 }, + { 0 } + }; + + if (t4_handle_intr_status(adapter, ULP_TX_INT_CAUSE, ulptx_intr_info)) + t4_fatal_err(adapter); +} + +/* + * PM TX interrupt handler. + */ +static void pmtx_intr_handler(struct adapter *adapter) +{ + static const struct intr_info pmtx_intr_info[] = { + { PCMD_LEN_OVFL0, "PMTX channel 0 pcmd too large", -1, 1 }, + { PCMD_LEN_OVFL1, "PMTX channel 1 pcmd too large", -1, 1 }, + { PCMD_LEN_OVFL2, "PMTX channel 2 pcmd too large", -1, 1 }, + { ZERO_C_CMD_ERROR, "PMTX 0-length pcmd", -1, 1 }, + { PMTX_FRAMING_ERROR, "PMTX framing error", -1, 1 }, + { OESPI_PAR_ERROR, "PMTX oespi parity error", -1, 1 }, + { DB_OPTIONS_PAR_ERROR, "PMTX db_options parity error", -1, 1 }, + { ICSPI_PAR_ERROR, "PMTX icspi parity error", -1, 1 }, + { C_PCMD_PAR_ERROR, "PMTX c_pcmd parity error", -1, 1}, + { 0 } + }; + + if (t4_handle_intr_status(adapter, PM_TX_INT_CAUSE, pmtx_intr_info)) + t4_fatal_err(adapter); +} + +/* + * PM RX interrupt handler. + */ +static void pmrx_intr_handler(struct adapter *adapter) +{ + static const struct intr_info pmrx_intr_info[] = { + { ZERO_E_CMD_ERROR, "PMRX 0-length pcmd", -1, 1 }, + { PMRX_FRAMING_ERROR, "PMRX framing error", -1, 1 }, + { OCSPI_PAR_ERROR, "PMRX ocspi parity error", -1, 1 }, + { DB_OPTIONS_PAR_ERROR, "PMRX db_options parity error", -1, 1 }, + { IESPI_PAR_ERROR, "PMRX iespi parity error", -1, 1 }, + { E_PCMD_PAR_ERROR, "PMRX e_pcmd parity error", -1, 1}, + { 0 } + }; + + if (t4_handle_intr_status(adapter, PM_RX_INT_CAUSE, pmrx_intr_info)) + t4_fatal_err(adapter); +} + +/* + * CPL switch interrupt handler. + */ +static void cplsw_intr_handler(struct adapter *adapter) +{ + static const struct intr_info cplsw_intr_info[] = { + { CIM_OP_MAP_PERR, "CPLSW CIM op_map parity error", -1, 1 }, + { CIM_OVFL_ERROR, "CPLSW CIM overflow", -1, 1 }, + { TP_FRAMING_ERROR, "CPLSW TP framing error", -1, 1 }, + { SGE_FRAMING_ERROR, "CPLSW SGE framing error", -1, 1 }, + { CIM_FRAMING_ERROR, "CPLSW CIM framing error", -1, 1 }, + { ZERO_SWITCH_ERROR, "CPLSW no-switch error", -1, 1 }, + { 0 } + }; + + if (t4_handle_intr_status(adapter, CPL_INTR_CAUSE, cplsw_intr_info)) + t4_fatal_err(adapter); +} + +/* + * LE interrupt handler. + */ +static void le_intr_handler(struct adapter *adap) +{ + static const struct intr_info le_intr_info[] = { + { LIPMISS, "LE LIP miss", -1, 0 }, + { LIP0, "LE 0 LIP error", -1, 0 }, + { PARITYERR, "LE parity error", -1, 1 }, + { UNKNOWNCMD, "LE unknown command", -1, 1 }, + { REQQPARERR, "LE request queue parity error", -1, 1 }, + { 0 } + }; + + if (t4_handle_intr_status(adap, LE_DB_INT_CAUSE, le_intr_info)) + t4_fatal_err(adap); +} + +/* + * MPS interrupt handler. + */ +static void mps_intr_handler(struct adapter *adapter) +{ + static const struct intr_info mps_rx_intr_info[] = { + { 0xffffff, "MPS Rx parity error", -1, 1 }, + { 0 } + }; + static const struct intr_info mps_tx_intr_info[] = { + { TPFIFO, "MPS Tx TP FIFO parity error", -1, 1 }, + { NCSIFIFO, "MPS Tx NC-SI FIFO parity error", -1, 1 }, + { TXDATAFIFO, "MPS Tx data FIFO parity error", -1, 1 }, + { TXDESCFIFO, "MPS Tx desc FIFO parity error", -1, 1 }, + { BUBBLE, "MPS Tx underflow", -1, 1 }, + { SECNTERR, "MPS Tx SOP/EOP error", -1, 1 }, + { FRMERR, "MPS Tx framing error", -1, 1 }, + { 0 } + }; + static const struct intr_info mps_trc_intr_info[] = { + { FILTMEM, "MPS TRC filter parity error", -1, 1 }, + { PKTFIFO, "MPS TRC packet FIFO parity error", -1, 1 }, + { MISCPERR, "MPS TRC misc parity error", -1, 1 }, + { 0 } + }; + static const struct intr_info mps_stat_sram_intr_info[] = { + { 0x1fffff, "MPS statistics SRAM parity error", -1, 1 }, + { 0 } + }; + static const struct intr_info mps_stat_tx_intr_info[] = { + { 0xfffff, "MPS statistics Tx FIFO parity error", -1, 1 }, + { 0 } + }; + static const struct intr_info mps_stat_rx_intr_info[] = { + { 0xffffff, "MPS statistics Rx FIFO parity error", -1, 1 }, + { 0 } + }; + static const struct intr_info mps_cls_intr_info[] = { + { MATCHSRAM, "MPS match SRAM parity error", -1, 1 }, + { MATCHTCAM, "MPS match TCAM parity error", -1, 1 }, + { HASHSRAM, "MPS hash SRAM parity error", -1, 1 }, + { 0 } + }; + + int fat; + + fat = t4_handle_intr_status(adapter, MPS_RX_PERR_INT_CAUSE, + mps_rx_intr_info) + + t4_handle_intr_status(adapter, MPS_TX_INT_CAUSE, + mps_tx_intr_info) + + t4_handle_intr_status(adapter, MPS_TRC_INT_CAUSE, + mps_trc_intr_info) + + t4_handle_intr_status(adapter, MPS_STAT_PERR_INT_CAUSE_SRAM, + mps_stat_sram_intr_info) + + t4_handle_intr_status(adapter, MPS_STAT_PERR_INT_CAUSE_TX_FIFO, + mps_stat_tx_intr_info) + + t4_handle_intr_status(adapter, MPS_STAT_PERR_INT_CAUSE_RX_FIFO, + mps_stat_rx_intr_info) + + t4_handle_intr_status(adapter, MPS_CLS_INT_CAUSE, + mps_cls_intr_info); + + t4_write_reg(adapter, MPS_INT_CAUSE, CLSINT | TRCINT | + RXINT | TXINT | STATINT); + t4_read_reg(adapter, MPS_INT_CAUSE); /* flush */ + if (fat) + t4_fatal_err(adapter); +} + +#define MEM_INT_MASK (PERR_INT_CAUSE | ECC_CE_INT_CAUSE | ECC_UE_INT_CAUSE) + +/* + * EDC/MC interrupt handler. + */ +static void mem_intr_handler(struct adapter *adapter, int idx) +{ + static const char name[3][5] = { "EDC0", "EDC1", "MC" }; + + unsigned int addr, cnt_addr, v; + + if (idx <= MEM_EDC1) { + addr = EDC_REG(EDC_INT_CAUSE, idx); + cnt_addr = EDC_REG(EDC_ECC_STATUS, idx); + } else { + addr = MC_INT_CAUSE; + cnt_addr = MC_ECC_STATUS; + } + + v = t4_read_reg(adapter, addr) & MEM_INT_MASK; + if (v & PERR_INT_CAUSE) + dev_alert(adapter->pdev_dev, "%s FIFO parity error\n", + name[idx]); + if (v & ECC_CE_INT_CAUSE) { + u32 cnt = ECC_CECNT_GET(t4_read_reg(adapter, cnt_addr)); + + t4_write_reg(adapter, cnt_addr, ECC_CECNT_MASK); + if (printk_ratelimit()) + dev_warn(adapter->pdev_dev, + "%u %s correctable ECC data error%s\n", + cnt, name[idx], cnt > 1 ? "s" : ""); + } + if (v & ECC_UE_INT_CAUSE) + dev_alert(adapter->pdev_dev, + "%s uncorrectable ECC data error\n", name[idx]); + + t4_write_reg(adapter, addr, v); + if (v & (PERR_INT_CAUSE | ECC_UE_INT_CAUSE)) + t4_fatal_err(adapter); +} + +/* + * MA interrupt handler. + */ +static void ma_intr_handler(struct adapter *adap) +{ + u32 v, status = t4_read_reg(adap, MA_INT_CAUSE); + + if (status & MEM_PERR_INT_CAUSE) + dev_alert(adap->pdev_dev, + "MA parity error, parity status %#x\n", + t4_read_reg(adap, MA_PARITY_ERROR_STATUS)); + if (status & MEM_WRAP_INT_CAUSE) { + v = t4_read_reg(adap, MA_INT_WRAP_STATUS); + dev_alert(adap->pdev_dev, "MA address wrap-around error by " + "client %u to address %#x\n", + MEM_WRAP_CLIENT_NUM_GET(v), + MEM_WRAP_ADDRESS_GET(v) << 4); + } + t4_write_reg(adap, MA_INT_CAUSE, status); + t4_fatal_err(adap); +} + +/* + * SMB interrupt handler. + */ +static void smb_intr_handler(struct adapter *adap) +{ + static const struct intr_info smb_intr_info[] = { + { MSTTXFIFOPARINT, "SMB master Tx FIFO parity error", -1, 1 }, + { MSTRXFIFOPARINT, "SMB master Rx FIFO parity error", -1, 1 }, + { SLVFIFOPARINT, "SMB slave FIFO parity error", -1, 1 }, + { 0 } + }; + + if (t4_handle_intr_status(adap, SMB_INT_CAUSE, smb_intr_info)) + t4_fatal_err(adap); +} + +/* + * NC-SI interrupt handler. + */ +static void ncsi_intr_handler(struct adapter *adap) +{ + static const struct intr_info ncsi_intr_info[] = { + { CIM_DM_PRTY_ERR, "NC-SI CIM parity error", -1, 1 }, + { MPS_DM_PRTY_ERR, "NC-SI MPS parity error", -1, 1 }, + { TXFIFO_PRTY_ERR, "NC-SI Tx FIFO parity error", -1, 1 }, + { RXFIFO_PRTY_ERR, "NC-SI Rx FIFO parity error", -1, 1 }, + { 0 } + }; + + if (t4_handle_intr_status(adap, NCSI_INT_CAUSE, ncsi_intr_info)) + t4_fatal_err(adap); +} + +/* + * XGMAC interrupt handler. + */ +static void xgmac_intr_handler(struct adapter *adap, int port) +{ + u32 v, int_cause_reg; + + if (is_t4(adap->params.chip)) + int_cause_reg = PORT_REG(port, XGMAC_PORT_INT_CAUSE); + else + int_cause_reg = T5_PORT_REG(port, MAC_PORT_INT_CAUSE); + + v = t4_read_reg(adap, int_cause_reg); + + v &= TXFIFO_PRTY_ERR | RXFIFO_PRTY_ERR; + if (!v) + return; + + if (v & TXFIFO_PRTY_ERR) + dev_alert(adap->pdev_dev, "XGMAC %d Tx FIFO parity error\n", + port); + if (v & RXFIFO_PRTY_ERR) + dev_alert(adap->pdev_dev, "XGMAC %d Rx FIFO parity error\n", + port); + t4_write_reg(adap, PORT_REG(port, XGMAC_PORT_INT_CAUSE), v); + t4_fatal_err(adap); +} + +/* + * PL interrupt handler. + */ +static void pl_intr_handler(struct adapter *adap) +{ + static const struct intr_info pl_intr_info[] = { + { FATALPERR, "T4 fatal parity error", -1, 1 }, + { PERRVFID, "PL VFID_MAP parity error", -1, 1 }, + { 0 } + }; + + if (t4_handle_intr_status(adap, PL_PL_INT_CAUSE, pl_intr_info)) + t4_fatal_err(adap); +} + +#define PF_INTR_MASK (PFSW) +#define GLBL_INTR_MASK (CIM | MPS | PL | PCIE | MC | EDC0 | \ + EDC1 | LE | TP | MA | PM_TX | PM_RX | ULP_RX | \ + CPL_SWITCH | SGE | ULP_TX) + +/** + * t4_slow_intr_handler - control path interrupt handler + * @adapter: the adapter + * + * T4 interrupt handler for non-data global interrupt events, e.g., errors. + * The designation 'slow' is because it involves register reads, while + * data interrupts typically don't involve any MMIOs. + */ +int t4_slow_intr_handler(struct adapter *adapter) +{ + u32 cause = t4_read_reg(adapter, PL_INT_CAUSE); + + if (!(cause & GLBL_INTR_MASK)) + return 0; + if (cause & CIM) + cim_intr_handler(adapter); + if (cause & MPS) + mps_intr_handler(adapter); + if (cause & NCSI) + ncsi_intr_handler(adapter); + if (cause & PL) + pl_intr_handler(adapter); + if (cause & SMB) + smb_intr_handler(adapter); + if (cause & XGMAC0) + xgmac_intr_handler(adapter, 0); + if (cause & XGMAC1) + xgmac_intr_handler(adapter, 1); + if (cause & XGMAC_KR0) + xgmac_intr_handler(adapter, 2); + if (cause & XGMAC_KR1) + xgmac_intr_handler(adapter, 3); + if (cause & PCIE) + pcie_intr_handler(adapter); + if (cause & MC) + mem_intr_handler(adapter, MEM_MC); + if (cause & EDC0) + mem_intr_handler(adapter, MEM_EDC0); + if (cause & EDC1) + mem_intr_handler(adapter, MEM_EDC1); + if (cause & LE) + le_intr_handler(adapter); + if (cause & TP) + tp_intr_handler(adapter); + if (cause & MA) + ma_intr_handler(adapter); + if (cause & PM_TX) + pmtx_intr_handler(adapter); + if (cause & PM_RX) + pmrx_intr_handler(adapter); + if (cause & ULP_RX) + ulprx_intr_handler(adapter); + if (cause & CPL_SWITCH) + cplsw_intr_handler(adapter); + if (cause & SGE) + sge_intr_handler(adapter); + if (cause & ULP_TX) + ulptx_intr_handler(adapter); + + /* Clear the interrupts just processed for which we are the master. */ + t4_write_reg(adapter, PL_INT_CAUSE, cause & GLBL_INTR_MASK); + (void) t4_read_reg(adapter, PL_INT_CAUSE); /* flush */ + return 1; +} + +/** + * t4_intr_enable - enable interrupts + * @adapter: the adapter whose interrupts should be enabled + * + * Enable PF-specific interrupts for the calling function and the top-level + * interrupt concentrator for global interrupts. Interrupts are already + * enabled at each module, here we just enable the roots of the interrupt + * hierarchies. + * + * Note: this function should be called only when the driver manages + * non PF-specific interrupts from the various HW modules. Only one PCI + * function at a time should be doing this. + */ +void t4_intr_enable(struct adapter *adapter) +{ + u32 pf = SOURCEPF_GET(t4_read_reg(adapter, PL_WHOAMI)); + + t4_write_reg(adapter, SGE_INT_ENABLE3, ERR_CPL_EXCEED_IQE_SIZE | + ERR_INVALID_CIDX_INC | ERR_CPL_OPCODE_0 | + ERR_DROPPED_DB | ERR_DATA_CPL_ON_HIGH_QID1 | + ERR_DATA_CPL_ON_HIGH_QID0 | ERR_BAD_DB_PIDX3 | + ERR_BAD_DB_PIDX2 | ERR_BAD_DB_PIDX1 | + ERR_BAD_DB_PIDX0 | ERR_ING_CTXT_PRIO | + ERR_EGR_CTXT_PRIO | INGRESS_SIZE_ERR | + DBFIFO_HP_INT | DBFIFO_LP_INT | + EGRESS_SIZE_ERR); + t4_write_reg(adapter, MYPF_REG(PL_PF_INT_ENABLE), PF_INTR_MASK); + t4_set_reg_field(adapter, PL_INT_MAP0, 0, 1 << pf); +} + +/** + * t4_intr_disable - disable interrupts + * @adapter: the adapter whose interrupts should be disabled + * + * Disable interrupts. We only disable the top-level interrupt + * concentrators. The caller must be a PCI function managing global + * interrupts. + */ +void t4_intr_disable(struct adapter *adapter) +{ + u32 pf = SOURCEPF_GET(t4_read_reg(adapter, PL_WHOAMI)); + + t4_write_reg(adapter, MYPF_REG(PL_PF_INT_ENABLE), 0); + t4_set_reg_field(adapter, PL_INT_MAP0, 1 << pf, 0); +} + +/** + * hash_mac_addr - return the hash value of a MAC address + * @addr: the 48-bit Ethernet MAC address + * + * Hashes a MAC address according to the hash function used by HW inexact + * (hash) address matching. + */ +static int hash_mac_addr(const u8 *addr) +{ + u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2]; + u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5]; + a ^= b; + a ^= (a >> 12); + a ^= (a >> 6); + return a & 0x3f; +} + +/** + * t4_config_rss_range - configure a portion of the RSS mapping table + * @adapter: the adapter + * @mbox: mbox to use for the FW command + * @viid: virtual interface whose RSS subtable is to be written + * @start: start entry in the table to write + * @n: how many table entries to write + * @rspq: values for the response queue lookup table + * @nrspq: number of values in @rspq + * + * Programs the selected part of the VI's RSS mapping table with the + * provided values. If @nrspq < @n the supplied values are used repeatedly + * until the full table range is populated. + * + * The caller must ensure the values in @rspq are in the range allowed for + * @viid. + */ +int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid, + int start, int n, const u16 *rspq, unsigned int nrspq) +{ + int ret; + const u16 *rsp = rspq; + const u16 *rsp_end = rspq + nrspq; + struct fw_rss_ind_tbl_cmd cmd; + + memset(&cmd, 0, sizeof(cmd)); + cmd.op_to_viid = htonl(FW_CMD_OP(FW_RSS_IND_TBL_CMD) | + FW_CMD_REQUEST | FW_CMD_WRITE | + FW_RSS_IND_TBL_CMD_VIID(viid)); + cmd.retval_len16 = htonl(FW_LEN16(cmd)); + + /* each fw_rss_ind_tbl_cmd takes up to 32 entries */ + while (n > 0) { + int nq = min(n, 32); + __be32 *qp = &cmd.iq0_to_iq2; + + cmd.niqid = htons(nq); + cmd.startidx = htons(start); + + start += nq; + n -= nq; + + while (nq > 0) { + unsigned int v; + + v = FW_RSS_IND_TBL_CMD_IQ0(*rsp); + if (++rsp >= rsp_end) + rsp = rspq; + v |= FW_RSS_IND_TBL_CMD_IQ1(*rsp); + if (++rsp >= rsp_end) + rsp = rspq; + v |= FW_RSS_IND_TBL_CMD_IQ2(*rsp); + if (++rsp >= rsp_end) + rsp = rspq; + + *qp++ = htonl(v); + nq -= 3; + } + + ret = t4_wr_mbox(adapter, mbox, &cmd, sizeof(cmd), NULL); + if (ret) + return ret; + } + return 0; +} + +/** + * t4_config_glbl_rss - configure the global RSS mode + * @adapter: the adapter + * @mbox: mbox to use for the FW command + * @mode: global RSS mode + * @flags: mode-specific flags + * + * Sets the global RSS mode. + */ +int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode, + unsigned int flags) +{ + struct fw_rss_glb_config_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_write = htonl(FW_CMD_OP(FW_RSS_GLB_CONFIG_CMD) | + FW_CMD_REQUEST | FW_CMD_WRITE); + c.retval_len16 = htonl(FW_LEN16(c)); + if (mode == FW_RSS_GLB_CONFIG_CMD_MODE_MANUAL) { + c.u.manual.mode_pkd = htonl(FW_RSS_GLB_CONFIG_CMD_MODE(mode)); + } else if (mode == FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL) { + c.u.basicvirtual.mode_pkd = + htonl(FW_RSS_GLB_CONFIG_CMD_MODE(mode)); + c.u.basicvirtual.synmapen_to_hashtoeplitz = htonl(flags); + } else + return -EINVAL; + return t4_wr_mbox(adapter, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_tp_get_tcp_stats - read TP's TCP MIB counters + * @adap: the adapter + * @v4: holds the TCP/IP counter values + * @v6: holds the TCP/IPv6 counter values + * + * Returns the values of TP's TCP/IP and TCP/IPv6 MIB counters. + * Either @v4 or @v6 may be %NULL to skip the corresponding stats. + */ +void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4, + struct tp_tcp_stats *v6) +{ + u32 val[TP_MIB_TCP_RXT_SEG_LO - TP_MIB_TCP_OUT_RST + 1]; + +#define STAT_IDX(x) ((TP_MIB_TCP_##x) - TP_MIB_TCP_OUT_RST) +#define STAT(x) val[STAT_IDX(x)] +#define STAT64(x) (((u64)STAT(x##_HI) << 32) | STAT(x##_LO)) + + if (v4) { + t4_read_indirect(adap, TP_MIB_INDEX, TP_MIB_DATA, val, + ARRAY_SIZE(val), TP_MIB_TCP_OUT_RST); + v4->tcpOutRsts = STAT(OUT_RST); + v4->tcpInSegs = STAT64(IN_SEG); + v4->tcpOutSegs = STAT64(OUT_SEG); + v4->tcpRetransSegs = STAT64(RXT_SEG); + } + if (v6) { + t4_read_indirect(adap, TP_MIB_INDEX, TP_MIB_DATA, val, + ARRAY_SIZE(val), TP_MIB_TCP_V6OUT_RST); + v6->tcpOutRsts = STAT(OUT_RST); + v6->tcpInSegs = STAT64(IN_SEG); + v6->tcpOutSegs = STAT64(OUT_SEG); + v6->tcpRetransSegs = STAT64(RXT_SEG); + } +#undef STAT64 +#undef STAT +#undef STAT_IDX +} + +/** + * t4_read_mtu_tbl - returns the values in the HW path MTU table + * @adap: the adapter + * @mtus: where to store the MTU values + * @mtu_log: where to store the MTU base-2 log (may be %NULL) + * + * Reads the HW path MTU table. + */ +void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log) +{ + u32 v; + int i; + + for (i = 0; i < NMTUS; ++i) { + t4_write_reg(adap, TP_MTU_TABLE, + MTUINDEX(0xff) | MTUVALUE(i)); + v = t4_read_reg(adap, TP_MTU_TABLE); + mtus[i] = MTUVALUE_GET(v); + if (mtu_log) + mtu_log[i] = MTUWIDTH_GET(v); + } +} + +/** + * t4_tp_wr_bits_indirect - set/clear bits in an indirect TP register + * @adap: the adapter + * @addr: the indirect TP register address + * @mask: specifies the field within the register to modify + * @val: new value for the field + * + * Sets a field of an indirect TP register to the given value. + */ +void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr, + unsigned int mask, unsigned int val) +{ + t4_write_reg(adap, TP_PIO_ADDR, addr); + val |= t4_read_reg(adap, TP_PIO_DATA) & ~mask; + t4_write_reg(adap, TP_PIO_DATA, val); +} + +/** + * init_cong_ctrl - initialize congestion control parameters + * @a: the alpha values for congestion control + * @b: the beta values for congestion control + * + * Initialize the congestion control parameters. + */ +static void init_cong_ctrl(unsigned short *a, unsigned short *b) +{ + a[0] = a[1] = a[2] = a[3] = a[4] = a[5] = a[6] = a[7] = a[8] = 1; + a[9] = 2; + a[10] = 3; + a[11] = 4; + a[12] = 5; + a[13] = 6; + a[14] = 7; + a[15] = 8; + a[16] = 9; + a[17] = 10; + a[18] = 14; + a[19] = 17; + a[20] = 21; + a[21] = 25; + a[22] = 30; + a[23] = 35; + a[24] = 45; + a[25] = 60; + a[26] = 80; + a[27] = 100; + a[28] = 200; + a[29] = 300; + a[30] = 400; + a[31] = 500; + + b[0] = b[1] = b[2] = b[3] = b[4] = b[5] = b[6] = b[7] = b[8] = 0; + b[9] = b[10] = 1; + b[11] = b[12] = 2; + b[13] = b[14] = b[15] = b[16] = 3; + b[17] = b[18] = b[19] = b[20] = b[21] = 4; + b[22] = b[23] = b[24] = b[25] = b[26] = b[27] = 5; + b[28] = b[29] = 6; + b[30] = b[31] = 7; +} + +/* The minimum additive increment value for the congestion control table */ +#define CC_MIN_INCR 2U + +/** + * t4_load_mtus - write the MTU and congestion control HW tables + * @adap: the adapter + * @mtus: the values for the MTU table + * @alpha: the values for the congestion control alpha parameter + * @beta: the values for the congestion control beta parameter + * + * Write the HW MTU table with the supplied MTUs and the high-speed + * congestion control table with the supplied alpha, beta, and MTUs. + * We write the two tables together because the additive increments + * depend on the MTUs. + */ +void t4_load_mtus(struct adapter *adap, const unsigned short *mtus, + const unsigned short *alpha, const unsigned short *beta) +{ + static const unsigned int avg_pkts[NCCTRL_WIN] = { + 2, 6, 10, 14, 20, 28, 40, 56, 80, 112, 160, 224, 320, 448, 640, + 896, 1281, 1792, 2560, 3584, 5120, 7168, 10240, 14336, 20480, + 28672, 40960, 57344, 81920, 114688, 163840, 229376 + }; + + unsigned int i, w; + + for (i = 0; i < NMTUS; ++i) { + unsigned int mtu = mtus[i]; + unsigned int log2 = fls(mtu); + + if (!(mtu & ((1 << log2) >> 2))) /* round */ + log2--; + t4_write_reg(adap, TP_MTU_TABLE, MTUINDEX(i) | + MTUWIDTH(log2) | MTUVALUE(mtu)); + + for (w = 0; w < NCCTRL_WIN; ++w) { + unsigned int inc; + + inc = max(((mtu - 40) * alpha[w]) / avg_pkts[w], + CC_MIN_INCR); + + t4_write_reg(adap, TP_CCTRL_TABLE, (i << 21) | + (w << 16) | (beta[w] << 13) | inc); + } + } +} + +/** + * get_mps_bg_map - return the buffer groups associated with a port + * @adap: the adapter + * @idx: the port index + * + * Returns a bitmap indicating which MPS buffer groups are associated + * with the given port. Bit i is set if buffer group i is used by the + * port. + */ +static unsigned int get_mps_bg_map(struct adapter *adap, int idx) +{ + u32 n = NUMPORTS_GET(t4_read_reg(adap, MPS_CMN_CTL)); + + if (n == 0) + return idx == 0 ? 0xf : 0; + if (n == 1) + return idx < 2 ? (3 << (2 * idx)) : 0; + return 1 << idx; +} + +/** + * t4_get_port_type_description - return Port Type string description + * @port_type: firmware Port Type enumeration + */ +const char *t4_get_port_type_description(enum fw_port_type port_type) +{ + static const char *const port_type_description[] = { + "R XFI", + "R XAUI", + "T SGMII", + "T XFI", + "T XAUI", + "KX4", + "CX4", + "KX", + "KR", + "R SFP+", + "KR/KX", + "KR/KX/KX4", + "R QSFP_10G", + "", + "R QSFP", + "R BP40_BA", + }; + + if (port_type < ARRAY_SIZE(port_type_description)) + return port_type_description[port_type]; + return "UNKNOWN"; +} + +/** + * t4_get_port_stats - collect port statistics + * @adap: the adapter + * @idx: the port index + * @p: the stats structure to fill + * + * Collect statistics related to the given port from HW. + */ +void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p) +{ + u32 bgmap = get_mps_bg_map(adap, idx); + +#define GET_STAT(name) \ + t4_read_reg64(adap, \ + (is_t4(adap->params.chip) ? PORT_REG(idx, MPS_PORT_STAT_##name##_L) : \ + T5_PORT_REG(idx, MPS_PORT_STAT_##name##_L))) +#define GET_STAT_COM(name) t4_read_reg64(adap, MPS_STAT_##name##_L) + + p->tx_octets = GET_STAT(TX_PORT_BYTES); + p->tx_frames = GET_STAT(TX_PORT_FRAMES); + p->tx_bcast_frames = GET_STAT(TX_PORT_BCAST); + p->tx_mcast_frames = GET_STAT(TX_PORT_MCAST); + p->tx_ucast_frames = GET_STAT(TX_PORT_UCAST); + p->tx_error_frames = GET_STAT(TX_PORT_ERROR); + p->tx_frames_64 = GET_STAT(TX_PORT_64B); + p->tx_frames_65_127 = GET_STAT(TX_PORT_65B_127B); + p->tx_frames_128_255 = GET_STAT(TX_PORT_128B_255B); + p->tx_frames_256_511 = GET_STAT(TX_PORT_256B_511B); + p->tx_frames_512_1023 = GET_STAT(TX_PORT_512B_1023B); + p->tx_frames_1024_1518 = GET_STAT(TX_PORT_1024B_1518B); + p->tx_frames_1519_max = GET_STAT(TX_PORT_1519B_MAX); + p->tx_drop = GET_STAT(TX_PORT_DROP); + p->tx_pause = GET_STAT(TX_PORT_PAUSE); + p->tx_ppp0 = GET_STAT(TX_PORT_PPP0); + p->tx_ppp1 = GET_STAT(TX_PORT_PPP1); + p->tx_ppp2 = GET_STAT(TX_PORT_PPP2); + p->tx_ppp3 = GET_STAT(TX_PORT_PPP3); + p->tx_ppp4 = GET_STAT(TX_PORT_PPP4); + p->tx_ppp5 = GET_STAT(TX_PORT_PPP5); + p->tx_ppp6 = GET_STAT(TX_PORT_PPP6); + p->tx_ppp7 = GET_STAT(TX_PORT_PPP7); + + p->rx_octets = GET_STAT(RX_PORT_BYTES); + p->rx_frames = GET_STAT(RX_PORT_FRAMES); + p->rx_bcast_frames = GET_STAT(RX_PORT_BCAST); + p->rx_mcast_frames = GET_STAT(RX_PORT_MCAST); + p->rx_ucast_frames = GET_STAT(RX_PORT_UCAST); + p->rx_too_long = GET_STAT(RX_PORT_MTU_ERROR); + p->rx_jabber = GET_STAT(RX_PORT_MTU_CRC_ERROR); + p->rx_fcs_err = GET_STAT(RX_PORT_CRC_ERROR); + p->rx_len_err = GET_STAT(RX_PORT_LEN_ERROR); + p->rx_symbol_err = GET_STAT(RX_PORT_SYM_ERROR); + p->rx_runt = GET_STAT(RX_PORT_LESS_64B); + p->rx_frames_64 = GET_STAT(RX_PORT_64B); + p->rx_frames_65_127 = GET_STAT(RX_PORT_65B_127B); + p->rx_frames_128_255 = GET_STAT(RX_PORT_128B_255B); + p->rx_frames_256_511 = GET_STAT(RX_PORT_256B_511B); + p->rx_frames_512_1023 = GET_STAT(RX_PORT_512B_1023B); + p->rx_frames_1024_1518 = GET_STAT(RX_PORT_1024B_1518B); + p->rx_frames_1519_max = GET_STAT(RX_PORT_1519B_MAX); + p->rx_pause = GET_STAT(RX_PORT_PAUSE); + p->rx_ppp0 = GET_STAT(RX_PORT_PPP0); + p->rx_ppp1 = GET_STAT(RX_PORT_PPP1); + p->rx_ppp2 = GET_STAT(RX_PORT_PPP2); + p->rx_ppp3 = GET_STAT(RX_PORT_PPP3); + p->rx_ppp4 = GET_STAT(RX_PORT_PPP4); + p->rx_ppp5 = GET_STAT(RX_PORT_PPP5); + p->rx_ppp6 = GET_STAT(RX_PORT_PPP6); + p->rx_ppp7 = GET_STAT(RX_PORT_PPP7); + + p->rx_ovflow0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_MAC_DROP_FRAME) : 0; + p->rx_ovflow1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_MAC_DROP_FRAME) : 0; + p->rx_ovflow2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_MAC_DROP_FRAME) : 0; + p->rx_ovflow3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_MAC_DROP_FRAME) : 0; + p->rx_trunc0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_MAC_TRUNC_FRAME) : 0; + p->rx_trunc1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_MAC_TRUNC_FRAME) : 0; + p->rx_trunc2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_MAC_TRUNC_FRAME) : 0; + p->rx_trunc3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_MAC_TRUNC_FRAME) : 0; + +#undef GET_STAT +#undef GET_STAT_COM +} + +/** + * t4_wol_magic_enable - enable/disable magic packet WoL + * @adap: the adapter + * @port: the physical port index + * @addr: MAC address expected in magic packets, %NULL to disable + * + * Enables/disables magic packet wake-on-LAN for the selected port. + */ +void t4_wol_magic_enable(struct adapter *adap, unsigned int port, + const u8 *addr) +{ + u32 mag_id_reg_l, mag_id_reg_h, port_cfg_reg; + + if (is_t4(adap->params.chip)) { + mag_id_reg_l = PORT_REG(port, XGMAC_PORT_MAGIC_MACID_LO); + mag_id_reg_h = PORT_REG(port, XGMAC_PORT_MAGIC_MACID_HI); + port_cfg_reg = PORT_REG(port, XGMAC_PORT_CFG2); + } else { + mag_id_reg_l = T5_PORT_REG(port, MAC_PORT_MAGIC_MACID_LO); + mag_id_reg_h = T5_PORT_REG(port, MAC_PORT_MAGIC_MACID_HI); + port_cfg_reg = T5_PORT_REG(port, MAC_PORT_CFG2); + } + + if (addr) { + t4_write_reg(adap, mag_id_reg_l, + (addr[2] << 24) | (addr[3] << 16) | + (addr[4] << 8) | addr[5]); + t4_write_reg(adap, mag_id_reg_h, + (addr[0] << 8) | addr[1]); + } + t4_set_reg_field(adap, port_cfg_reg, MAGICEN, + addr ? MAGICEN : 0); +} + +/** + * t4_wol_pat_enable - enable/disable pattern-based WoL + * @adap: the adapter + * @port: the physical port index + * @map: bitmap of which HW pattern filters to set + * @mask0: byte mask for bytes 0-63 of a packet + * @mask1: byte mask for bytes 64-127 of a packet + * @crc: Ethernet CRC for selected bytes + * @enable: enable/disable switch + * + * Sets the pattern filters indicated in @map to mask out the bytes + * specified in @mask0/@mask1 in received packets and compare the CRC of + * the resulting packet against @crc. If @enable is %true pattern-based + * WoL is enabled, otherwise disabled. + */ +int t4_wol_pat_enable(struct adapter *adap, unsigned int port, unsigned int map, + u64 mask0, u64 mask1, unsigned int crc, bool enable) +{ + int i; + u32 port_cfg_reg; + + if (is_t4(adap->params.chip)) + port_cfg_reg = PORT_REG(port, XGMAC_PORT_CFG2); + else + port_cfg_reg = T5_PORT_REG(port, MAC_PORT_CFG2); + + if (!enable) { + t4_set_reg_field(adap, port_cfg_reg, PATEN, 0); + return 0; + } + if (map > 0xff) + return -EINVAL; + +#define EPIO_REG(name) \ + (is_t4(adap->params.chip) ? PORT_REG(port, XGMAC_PORT_EPIO_##name) : \ + T5_PORT_REG(port, MAC_PORT_EPIO_##name)) + + t4_write_reg(adap, EPIO_REG(DATA1), mask0 >> 32); + t4_write_reg(adap, EPIO_REG(DATA2), mask1); + t4_write_reg(adap, EPIO_REG(DATA3), mask1 >> 32); + + for (i = 0; i < NWOL_PAT; i++, map >>= 1) { + if (!(map & 1)) + continue; + + /* write byte masks */ + t4_write_reg(adap, EPIO_REG(DATA0), mask0); + t4_write_reg(adap, EPIO_REG(OP), ADDRESS(i) | EPIOWR); + t4_read_reg(adap, EPIO_REG(OP)); /* flush */ + if (t4_read_reg(adap, EPIO_REG(OP)) & SF_BUSY) + return -ETIMEDOUT; + + /* write CRC */ + t4_write_reg(adap, EPIO_REG(DATA0), crc); + t4_write_reg(adap, EPIO_REG(OP), ADDRESS(i + 32) | EPIOWR); + t4_read_reg(adap, EPIO_REG(OP)); /* flush */ + if (t4_read_reg(adap, EPIO_REG(OP)) & SF_BUSY) + return -ETIMEDOUT; + } +#undef EPIO_REG + + t4_set_reg_field(adap, PORT_REG(port, XGMAC_PORT_CFG2), 0, PATEN); + return 0; +} + +/* t4_mk_filtdelwr - create a delete filter WR + * @ftid: the filter ID + * @wr: the filter work request to populate + * @qid: ingress queue to receive the delete notification + * + * Creates a filter work request to delete the supplied filter. If @qid is + * negative the delete notification is suppressed. + */ +void t4_mk_filtdelwr(unsigned int ftid, struct fw_filter_wr *wr, int qid) +{ + memset(wr, 0, sizeof(*wr)); + wr->op_pkd = htonl(FW_WR_OP(FW_FILTER_WR)); + wr->len16_pkd = htonl(FW_WR_LEN16(sizeof(*wr) / 16)); + wr->tid_to_iq = htonl(V_FW_FILTER_WR_TID(ftid) | + V_FW_FILTER_WR_NOREPLY(qid < 0)); + wr->del_filter_to_l2tix = htonl(F_FW_FILTER_WR_DEL_FILTER); + if (qid >= 0) + wr->rx_chan_rx_rpl_iq = htons(V_FW_FILTER_WR_RX_RPL_IQ(qid)); +} + +#define INIT_CMD(var, cmd, rd_wr) do { \ + (var).op_to_write = htonl(FW_CMD_OP(FW_##cmd##_CMD) | \ + FW_CMD_REQUEST | FW_CMD_##rd_wr); \ + (var).retval_len16 = htonl(FW_LEN16(var)); \ +} while (0) + +int t4_fwaddrspace_write(struct adapter *adap, unsigned int mbox, + u32 addr, u32 val) +{ + struct fw_ldst_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_addrspace = htonl(FW_CMD_OP(FW_LDST_CMD) | FW_CMD_REQUEST | + FW_CMD_WRITE | + FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_FIRMWARE)); + c.cycles_to_len16 = htonl(FW_LEN16(c)); + c.u.addrval.addr = htonl(addr); + c.u.addrval.val = htonl(val); + + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_mem_win_read_len - read memory through PCIE memory window + * @adap: the adapter + * @addr: address of first byte requested aligned on 32b. + * @data: len bytes to hold the data read + * @len: amount of data to read from window. Must be <= + * MEMWIN0_APERATURE after adjusting for 16B for T4 and + * 128B for T5 alignment requirements of the the memory window. + * + * Read len bytes of data from MC starting at @addr. + */ +int t4_mem_win_read_len(struct adapter *adap, u32 addr, __be32 *data, int len) +{ + int i, off; + u32 win_pf = is_t4(adap->params.chip) ? 0 : V_PFNUM(adap->fn); + + /* Align on a 2KB boundary. + */ + off = addr & MEMWIN0_APERTURE; + if ((addr & 3) || (len + off) > MEMWIN0_APERTURE) + return -EINVAL; + + t4_write_reg(adap, PCIE_MEM_ACCESS_OFFSET, + (addr & ~MEMWIN0_APERTURE) | win_pf); + t4_read_reg(adap, PCIE_MEM_ACCESS_OFFSET); + + for (i = 0; i < len; i += 4) + *data++ = (__force __be32) t4_read_reg(adap, + (MEMWIN0_BASE + off + i)); + + return 0; +} + +/** + * t4_mdio_rd - read a PHY register through MDIO + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @phy_addr: the PHY address + * @mmd: the PHY MMD to access (0 for clause 22 PHYs) + * @reg: the register to read + * @valp: where to store the value + * + * Issues a FW command through the given mailbox to read a PHY register. + */ +int t4_mdio_rd(struct adapter *adap, unsigned int mbox, unsigned int phy_addr, + unsigned int mmd, unsigned int reg, u16 *valp) +{ + int ret; + struct fw_ldst_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_addrspace = htonl(FW_CMD_OP(FW_LDST_CMD) | FW_CMD_REQUEST | + FW_CMD_READ | FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_MDIO)); + c.cycles_to_len16 = htonl(FW_LEN16(c)); + c.u.mdio.paddr_mmd = htons(FW_LDST_CMD_PADDR(phy_addr) | + FW_LDST_CMD_MMD(mmd)); + c.u.mdio.raddr = htons(reg); + + ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c); + if (ret == 0) + *valp = ntohs(c.u.mdio.rval); + return ret; +} + +/** + * t4_mdio_wr - write a PHY register through MDIO + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @phy_addr: the PHY address + * @mmd: the PHY MMD to access (0 for clause 22 PHYs) + * @reg: the register to write + * @valp: value to write + * + * Issues a FW command through the given mailbox to write a PHY register. + */ +int t4_mdio_wr(struct adapter *adap, unsigned int mbox, unsigned int phy_addr, + unsigned int mmd, unsigned int reg, u16 val) +{ + struct fw_ldst_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_addrspace = htonl(FW_CMD_OP(FW_LDST_CMD) | FW_CMD_REQUEST | + FW_CMD_WRITE | FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_MDIO)); + c.cycles_to_len16 = htonl(FW_LEN16(c)); + c.u.mdio.paddr_mmd = htons(FW_LDST_CMD_PADDR(phy_addr) | + FW_LDST_CMD_MMD(mmd)); + c.u.mdio.raddr = htons(reg); + c.u.mdio.rval = htons(val); + + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_sge_decode_idma_state - decode the idma state + * @adap: the adapter + * @state: the state idma is stuck in + */ +void t4_sge_decode_idma_state(struct adapter *adapter, int state) +{ + static const char * const t4_decode[] = { + "IDMA_IDLE", + "IDMA_PUSH_MORE_CPL_FIFO", + "IDMA_PUSH_CPL_MSG_HEADER_TO_FIFO", + "Not used", + "IDMA_PHYSADDR_SEND_PCIEHDR", + "IDMA_PHYSADDR_SEND_PAYLOAD_FIRST", + "IDMA_PHYSADDR_SEND_PAYLOAD", + "IDMA_SEND_FIFO_TO_IMSG", + "IDMA_FL_REQ_DATA_FL_PREP", + "IDMA_FL_REQ_DATA_FL", + "IDMA_FL_DROP", + "IDMA_FL_H_REQ_HEADER_FL", + "IDMA_FL_H_SEND_PCIEHDR", + "IDMA_FL_H_PUSH_CPL_FIFO", + "IDMA_FL_H_SEND_CPL", + "IDMA_FL_H_SEND_IP_HDR_FIRST", + "IDMA_FL_H_SEND_IP_HDR", + "IDMA_FL_H_REQ_NEXT_HEADER_FL", + "IDMA_FL_H_SEND_NEXT_PCIEHDR", + "IDMA_FL_H_SEND_IP_HDR_PADDING", + "IDMA_FL_D_SEND_PCIEHDR", + "IDMA_FL_D_SEND_CPL_AND_IP_HDR", + "IDMA_FL_D_REQ_NEXT_DATA_FL", + "IDMA_FL_SEND_PCIEHDR", + "IDMA_FL_PUSH_CPL_FIFO", + "IDMA_FL_SEND_CPL", + "IDMA_FL_SEND_PAYLOAD_FIRST", + "IDMA_FL_SEND_PAYLOAD", + "IDMA_FL_REQ_NEXT_DATA_FL", + "IDMA_FL_SEND_NEXT_PCIEHDR", + "IDMA_FL_SEND_PADDING", + "IDMA_FL_SEND_COMPLETION_TO_IMSG", + "IDMA_FL_SEND_FIFO_TO_IMSG", + "IDMA_FL_REQ_DATAFL_DONE", + "IDMA_FL_REQ_HEADERFL_DONE", + }; + static const char * const t5_decode[] = { + "IDMA_IDLE", + "IDMA_ALMOST_IDLE", + "IDMA_PUSH_MORE_CPL_FIFO", + "IDMA_PUSH_CPL_MSG_HEADER_TO_FIFO", + "IDMA_SGEFLRFLUSH_SEND_PCIEHDR", + "IDMA_PHYSADDR_SEND_PCIEHDR", + "IDMA_PHYSADDR_SEND_PAYLOAD_FIRST", + "IDMA_PHYSADDR_SEND_PAYLOAD", + "IDMA_SEND_FIFO_TO_IMSG", + "IDMA_FL_REQ_DATA_FL", + "IDMA_FL_DROP", + "IDMA_FL_DROP_SEND_INC", + "IDMA_FL_H_REQ_HEADER_FL", + "IDMA_FL_H_SEND_PCIEHDR", + "IDMA_FL_H_PUSH_CPL_FIFO", + "IDMA_FL_H_SEND_CPL", + "IDMA_FL_H_SEND_IP_HDR_FIRST", + "IDMA_FL_H_SEND_IP_HDR", + "IDMA_FL_H_REQ_NEXT_HEADER_FL", + "IDMA_FL_H_SEND_NEXT_PCIEHDR", + "IDMA_FL_H_SEND_IP_HDR_PADDING", + "IDMA_FL_D_SEND_PCIEHDR", + "IDMA_FL_D_SEND_CPL_AND_IP_HDR", + "IDMA_FL_D_REQ_NEXT_DATA_FL", + "IDMA_FL_SEND_PCIEHDR", + "IDMA_FL_PUSH_CPL_FIFO", + "IDMA_FL_SEND_CPL", + "IDMA_FL_SEND_PAYLOAD_FIRST", + "IDMA_FL_SEND_PAYLOAD", + "IDMA_FL_REQ_NEXT_DATA_FL", + "IDMA_FL_SEND_NEXT_PCIEHDR", + "IDMA_FL_SEND_PADDING", + "IDMA_FL_SEND_COMPLETION_TO_IMSG", + }; + static const u32 sge_regs[] = { + SGE_DEBUG_DATA_LOW_INDEX_2, + SGE_DEBUG_DATA_LOW_INDEX_3, + SGE_DEBUG_DATA_HIGH_INDEX_10, + }; + const char **sge_idma_decode; + int sge_idma_decode_nstates; + int i; + + if (is_t4(adapter->params.chip)) { + sge_idma_decode = (const char **)t4_decode; + sge_idma_decode_nstates = ARRAY_SIZE(t4_decode); + } else { + sge_idma_decode = (const char **)t5_decode; + sge_idma_decode_nstates = ARRAY_SIZE(t5_decode); + } + + if (state < sge_idma_decode_nstates) + CH_WARN(adapter, "idma state %s\n", sge_idma_decode[state]); + else + CH_WARN(adapter, "idma state %d unknown\n", state); + + for (i = 0; i < ARRAY_SIZE(sge_regs); i++) + CH_WARN(adapter, "SGE register %#x value %#x\n", + sge_regs[i], t4_read_reg(adapter, sge_regs[i])); +} + +/** + * t4_fw_hello - establish communication with FW + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @evt_mbox: mailbox to receive async FW events + * @master: specifies the caller's willingness to be the device master + * @state: returns the current device state (if non-NULL) + * + * Issues a command to establish communication with FW. Returns either + * an error (negative integer) or the mailbox of the Master PF. + */ +int t4_fw_hello(struct adapter *adap, unsigned int mbox, unsigned int evt_mbox, + enum dev_master master, enum dev_state *state) +{ + int ret; + struct fw_hello_cmd c; + u32 v; + unsigned int master_mbox; + int retries = FW_CMD_HELLO_RETRIES; + +retry: + memset(&c, 0, sizeof(c)); + INIT_CMD(c, HELLO, WRITE); + c.err_to_clearinit = htonl( + FW_HELLO_CMD_MASTERDIS(master == MASTER_CANT) | + FW_HELLO_CMD_MASTERFORCE(master == MASTER_MUST) | + FW_HELLO_CMD_MBMASTER(master == MASTER_MUST ? mbox : + FW_HELLO_CMD_MBMASTER_MASK) | + FW_HELLO_CMD_MBASYNCNOT(evt_mbox) | + FW_HELLO_CMD_STAGE(fw_hello_cmd_stage_os) | + FW_HELLO_CMD_CLEARINIT); + + /* + * Issue the HELLO command to the firmware. If it's not successful + * but indicates that we got a "busy" or "timeout" condition, retry + * the HELLO until we exhaust our retry limit. + */ + ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c); + if (ret < 0) { + if ((ret == -EBUSY || ret == -ETIMEDOUT) && retries-- > 0) + goto retry; + return ret; + } + + v = ntohl(c.err_to_clearinit); + master_mbox = FW_HELLO_CMD_MBMASTER_GET(v); + if (state) { + if (v & FW_HELLO_CMD_ERR) + *state = DEV_STATE_ERR; + else if (v & FW_HELLO_CMD_INIT) + *state = DEV_STATE_INIT; + else + *state = DEV_STATE_UNINIT; + } + + /* + * If we're not the Master PF then we need to wait around for the + * Master PF Driver to finish setting up the adapter. + * + * Note that we also do this wait if we're a non-Master-capable PF and + * there is no current Master PF; a Master PF may show up momentarily + * and we wouldn't want to fail pointlessly. (This can happen when an + * OS loads lots of different drivers rapidly at the same time). In + * this case, the Master PF returned by the firmware will be + * FW_PCIE_FW_MASTER_MASK so the test below will work ... + */ + if ((v & (FW_HELLO_CMD_ERR|FW_HELLO_CMD_INIT)) == 0 && + master_mbox != mbox) { + int waiting = FW_CMD_HELLO_TIMEOUT; + + /* + * Wait for the firmware to either indicate an error or + * initialized state. If we see either of these we bail out + * and report the issue to the caller. If we exhaust the + * "hello timeout" and we haven't exhausted our retries, try + * again. Otherwise bail with a timeout error. + */ + for (;;) { + u32 pcie_fw; + + msleep(50); + waiting -= 50; + + /* + * If neither Error nor Initialialized are indicated + * by the firmware keep waiting till we exaust our + * timeout ... and then retry if we haven't exhausted + * our retries ... + */ + pcie_fw = t4_read_reg(adap, MA_PCIE_FW); + if (!(pcie_fw & (FW_PCIE_FW_ERR|FW_PCIE_FW_INIT))) { + if (waiting <= 0) { + if (retries-- > 0) + goto retry; + + return -ETIMEDOUT; + } + continue; + } + + /* + * We either have an Error or Initialized condition + * report errors preferentially. + */ + if (state) { + if (pcie_fw & FW_PCIE_FW_ERR) + *state = DEV_STATE_ERR; + else if (pcie_fw & FW_PCIE_FW_INIT) + *state = DEV_STATE_INIT; + } + + /* + * If we arrived before a Master PF was selected and + * there's not a valid Master PF, grab its identity + * for our caller. + */ + if (master_mbox == FW_PCIE_FW_MASTER_MASK && + (pcie_fw & FW_PCIE_FW_MASTER_VLD)) + master_mbox = FW_PCIE_FW_MASTER_GET(pcie_fw); + break; + } + } + + return master_mbox; +} + +/** + * t4_fw_bye - end communication with FW + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * + * Issues a command to terminate communication with FW. + */ +int t4_fw_bye(struct adapter *adap, unsigned int mbox) +{ + struct fw_bye_cmd c; + + memset(&c, 0, sizeof(c)); + INIT_CMD(c, BYE, WRITE); + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_init_cmd - ask FW to initialize the device + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * + * Issues a command to FW to partially initialize the device. This + * performs initialization that generally doesn't depend on user input. + */ +int t4_early_init(struct adapter *adap, unsigned int mbox) +{ + struct fw_initialize_cmd c; + + memset(&c, 0, sizeof(c)); + INIT_CMD(c, INITIALIZE, WRITE); + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_fw_reset - issue a reset to FW + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @reset: specifies the type of reset to perform + * + * Issues a reset command of the specified type to FW. + */ +int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset) +{ + struct fw_reset_cmd c; + + memset(&c, 0, sizeof(c)); + INIT_CMD(c, RESET, WRITE); + c.val = htonl(reset); + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_fw_halt - issue a reset/halt to FW and put uP into RESET + * @adap: the adapter + * @mbox: mailbox to use for the FW RESET command (if desired) + * @force: force uP into RESET even if FW RESET command fails + * + * Issues a RESET command to firmware (if desired) with a HALT indication + * and then puts the microprocessor into RESET state. The RESET command + * will only be issued if a legitimate mailbox is provided (mbox <= + * FW_PCIE_FW_MASTER_MASK). + * + * This is generally used in order for the host to safely manipulate the + * adapter without fear of conflicting with whatever the firmware might + * be doing. The only way out of this state is to RESTART the firmware + * ... + */ +static int t4_fw_halt(struct adapter *adap, unsigned int mbox, int force) +{ + int ret = 0; + + /* + * If a legitimate mailbox is provided, issue a RESET command + * with a HALT indication. + */ + if (mbox <= FW_PCIE_FW_MASTER_MASK) { + struct fw_reset_cmd c; + + memset(&c, 0, sizeof(c)); + INIT_CMD(c, RESET, WRITE); + c.val = htonl(PIORST | PIORSTMODE); + c.halt_pkd = htonl(FW_RESET_CMD_HALT(1U)); + ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); + } + + /* + * Normally we won't complete the operation if the firmware RESET + * command fails but if our caller insists we'll go ahead and put the + * uP into RESET. This can be useful if the firmware is hung or even + * missing ... We'll have to take the risk of putting the uP into + * RESET without the cooperation of firmware in that case. + * + * We also force the firmware's HALT flag to be on in case we bypassed + * the firmware RESET command above or we're dealing with old firmware + * which doesn't have the HALT capability. This will serve as a flag + * for the incoming firmware to know that it's coming out of a HALT + * rather than a RESET ... if it's new enough to understand that ... + */ + if (ret == 0 || force) { + t4_set_reg_field(adap, CIM_BOOT_CFG, UPCRST, UPCRST); + t4_set_reg_field(adap, PCIE_FW, FW_PCIE_FW_HALT, + FW_PCIE_FW_HALT); + } + + /* + * And we always return the result of the firmware RESET command + * even when we force the uP into RESET ... + */ + return ret; +} + +/** + * t4_fw_restart - restart the firmware by taking the uP out of RESET + * @adap: the adapter + * @reset: if we want to do a RESET to restart things + * + * Restart firmware previously halted by t4_fw_halt(). On successful + * return the previous PF Master remains as the new PF Master and there + * is no need to issue a new HELLO command, etc. + * + * We do this in two ways: + * + * 1. If we're dealing with newer firmware we'll simply want to take + * the chip's microprocessor out of RESET. This will cause the + * firmware to start up from its start vector. And then we'll loop + * until the firmware indicates it's started again (PCIE_FW.HALT + * reset to 0) or we timeout. + * + * 2. If we're dealing with older firmware then we'll need to RESET + * the chip since older firmware won't recognize the PCIE_FW.HALT + * flag and automatically RESET itself on startup. + */ +static int t4_fw_restart(struct adapter *adap, unsigned int mbox, int reset) +{ + if (reset) { + /* + * Since we're directing the RESET instead of the firmware + * doing it automatically, we need to clear the PCIE_FW.HALT + * bit. + */ + t4_set_reg_field(adap, PCIE_FW, FW_PCIE_FW_HALT, 0); + + /* + * If we've been given a valid mailbox, first try to get the + * firmware to do the RESET. If that works, great and we can + * return success. Otherwise, if we haven't been given a + * valid mailbox or the RESET command failed, fall back to + * hitting the chip with a hammer. + */ + if (mbox <= FW_PCIE_FW_MASTER_MASK) { + t4_set_reg_field(adap, CIM_BOOT_CFG, UPCRST, 0); + msleep(100); + if (t4_fw_reset(adap, mbox, + PIORST | PIORSTMODE) == 0) + return 0; + } + + t4_write_reg(adap, PL_RST, PIORST | PIORSTMODE); + msleep(2000); + } else { + int ms; + + t4_set_reg_field(adap, CIM_BOOT_CFG, UPCRST, 0); + for (ms = 0; ms < FW_CMD_MAX_TIMEOUT; ) { + if (!(t4_read_reg(adap, PCIE_FW) & FW_PCIE_FW_HALT)) + return 0; + msleep(100); + ms += 100; + } + return -ETIMEDOUT; + } + return 0; +} + +/** + * t4_fw_upgrade - perform all of the steps necessary to upgrade FW + * @adap: the adapter + * @mbox: mailbox to use for the FW RESET command (if desired) + * @fw_data: the firmware image to write + * @size: image size + * @force: force upgrade even if firmware doesn't cooperate + * + * Perform all of the steps necessary for upgrading an adapter's + * firmware image. Normally this requires the cooperation of the + * existing firmware in order to halt all existing activities + * but if an invalid mailbox token is passed in we skip that step + * (though we'll still put the adapter microprocessor into RESET in + * that case). + * + * On successful return the new firmware will have been loaded and + * the adapter will have been fully RESET losing all previous setup + * state. On unsuccessful return the adapter may be completely hosed ... + * positive errno indicates that the adapter is ~probably~ intact, a + * negative errno indicates that things are looking bad ... + */ +static int t4_fw_upgrade(struct adapter *adap, unsigned int mbox, + const u8 *fw_data, unsigned int size, int force) +{ + const struct fw_hdr *fw_hdr = (const struct fw_hdr *)fw_data; + int reset, ret; + + ret = t4_fw_halt(adap, mbox, force); + if (ret < 0 && !force) + return ret; + + ret = t4_load_fw(adap, fw_data, size); + if (ret < 0) + return ret; + + /* + * Older versions of the firmware don't understand the new + * PCIE_FW.HALT flag and so won't know to perform a RESET when they + * restart. So for newly loaded older firmware we'll have to do the + * RESET for it so it starts up on a clean slate. We can tell if + * the newly loaded firmware will handle this right by checking + * its header flags to see if it advertises the capability. + */ + reset = ((ntohl(fw_hdr->flags) & FW_HDR_FLAGS_RESET_HALT) == 0); + return t4_fw_restart(adap, mbox, reset); +} + +/** + * t4_fixup_host_params - fix up host-dependent parameters + * @adap: the adapter + * @page_size: the host's Base Page Size + * @cache_line_size: the host's Cache Line Size + * + * Various registers in T4 contain values which are dependent on the + * host's Base Page and Cache Line Sizes. This function will fix all of + * those registers with the appropriate values as passed in ... + */ +int t4_fixup_host_params(struct adapter *adap, unsigned int page_size, + unsigned int cache_line_size) +{ + unsigned int page_shift = fls(page_size) - 1; + unsigned int sge_hps = page_shift - 10; + unsigned int stat_len = cache_line_size > 64 ? 128 : 64; + unsigned int fl_align = cache_line_size < 32 ? 32 : cache_line_size; + unsigned int fl_align_log = fls(fl_align) - 1; + + t4_write_reg(adap, SGE_HOST_PAGE_SIZE, + HOSTPAGESIZEPF0(sge_hps) | + HOSTPAGESIZEPF1(sge_hps) | + HOSTPAGESIZEPF2(sge_hps) | + HOSTPAGESIZEPF3(sge_hps) | + HOSTPAGESIZEPF4(sge_hps) | + HOSTPAGESIZEPF5(sge_hps) | + HOSTPAGESIZEPF6(sge_hps) | + HOSTPAGESIZEPF7(sge_hps)); + + t4_set_reg_field(adap, SGE_CONTROL, + INGPADBOUNDARY_MASK | + EGRSTATUSPAGESIZE_MASK, + INGPADBOUNDARY(fl_align_log - 5) | + EGRSTATUSPAGESIZE(stat_len != 64)); + + /* + * Adjust various SGE Free List Host Buffer Sizes. + * + * This is something of a crock since we're using fixed indices into + * the array which are also known by the sge.c code and the T4 + * Firmware Configuration File. We need to come up with a much better + * approach to managing this array. For now, the first four entries + * are: + * + * 0: Host Page Size + * 1: 64KB + * 2: Buffer size corresponding to 1500 byte MTU (unpacked mode) + * 3: Buffer size corresponding to 9000 byte MTU (unpacked mode) + * + * For the single-MTU buffers in unpacked mode we need to include + * space for the SGE Control Packet Shift, 14 byte Ethernet header, + * possible 4 byte VLAN tag, all rounded up to the next Ingress Packet + * Padding boundry. All of these are accommodated in the Factory + * Default Firmware Configuration File but we need to adjust it for + * this host's cache line size. + */ + t4_write_reg(adap, SGE_FL_BUFFER_SIZE0, page_size); + t4_write_reg(adap, SGE_FL_BUFFER_SIZE2, + (t4_read_reg(adap, SGE_FL_BUFFER_SIZE2) + fl_align-1) + & ~(fl_align-1)); + t4_write_reg(adap, SGE_FL_BUFFER_SIZE3, + (t4_read_reg(adap, SGE_FL_BUFFER_SIZE3) + fl_align-1) + & ~(fl_align-1)); + + t4_write_reg(adap, ULP_RX_TDDP_PSZ, HPZ0(page_shift - 12)); + + return 0; +} + +/** + * t4_fw_initialize - ask FW to initialize the device + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * + * Issues a command to FW to partially initialize the device. This + * performs initialization that generally doesn't depend on user input. + */ +int t4_fw_initialize(struct adapter *adap, unsigned int mbox) +{ + struct fw_initialize_cmd c; + + memset(&c, 0, sizeof(c)); + INIT_CMD(c, INITIALIZE, WRITE); + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_query_params - query FW or device parameters + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @pf: the PF + * @vf: the VF + * @nparams: the number of parameters + * @params: the parameter names + * @val: the parameter values + * + * Reads the value of FW or device parameters. Up to 7 parameters can be + * queried at once. + */ +int t4_query_params(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int nparams, const u32 *params, + u32 *val) +{ + int i, ret; + struct fw_params_cmd c; + __be32 *p = &c.param[0].mnem; + + if (nparams > 7) + return -EINVAL; + + memset(&c, 0, sizeof(c)); + c.op_to_vfn = htonl(FW_CMD_OP(FW_PARAMS_CMD) | FW_CMD_REQUEST | + FW_CMD_READ | FW_PARAMS_CMD_PFN(pf) | + FW_PARAMS_CMD_VFN(vf)); + c.retval_len16 = htonl(FW_LEN16(c)); + for (i = 0; i < nparams; i++, p += 2) + *p = htonl(*params++); + + ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c); + if (ret == 0) + for (i = 0, p = &c.param[0].val; i < nparams; i++, p += 2) + *val++ = ntohl(*p); + return ret; +} + +/** + * t4_set_params - sets FW or device parameters + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @pf: the PF + * @vf: the VF + * @nparams: the number of parameters + * @params: the parameter names + * @val: the parameter values + * + * Sets the value of FW or device parameters. Up to 7 parameters can be + * specified at once. + */ +int t4_set_params(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int nparams, const u32 *params, + const u32 *val) +{ + struct fw_params_cmd c; + __be32 *p = &c.param[0].mnem; + + if (nparams > 7) + return -EINVAL; + + memset(&c, 0, sizeof(c)); + c.op_to_vfn = htonl(FW_CMD_OP(FW_PARAMS_CMD) | FW_CMD_REQUEST | + FW_CMD_WRITE | FW_PARAMS_CMD_PFN(pf) | + FW_PARAMS_CMD_VFN(vf)); + c.retval_len16 = htonl(FW_LEN16(c)); + while (nparams--) { + *p++ = htonl(*params++); + *p++ = htonl(*val++); + } + + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_cfg_pfvf - configure PF/VF resource limits + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @pf: the PF being configured + * @vf: the VF being configured + * @txq: the max number of egress queues + * @txq_eth_ctrl: the max number of egress Ethernet or control queues + * @rxqi: the max number of interrupt-capable ingress queues + * @rxq: the max number of interruptless ingress queues + * @tc: the PCI traffic class + * @vi: the max number of virtual interfaces + * @cmask: the channel access rights mask for the PF/VF + * @pmask: the port access rights mask for the PF/VF + * @nexact: the maximum number of exact MPS filters + * @rcaps: read capabilities + * @wxcaps: write/execute capabilities + * + * Configures resource limits and capabilities for a physical or virtual + * function. + */ +int t4_cfg_pfvf(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int txq, unsigned int txq_eth_ctrl, + unsigned int rxqi, unsigned int rxq, unsigned int tc, + unsigned int vi, unsigned int cmask, unsigned int pmask, + unsigned int nexact, unsigned int rcaps, unsigned int wxcaps) +{ + struct fw_pfvf_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_vfn = htonl(FW_CMD_OP(FW_PFVF_CMD) | FW_CMD_REQUEST | + FW_CMD_WRITE | FW_PFVF_CMD_PFN(pf) | + FW_PFVF_CMD_VFN(vf)); + c.retval_len16 = htonl(FW_LEN16(c)); + c.niqflint_niq = htonl(FW_PFVF_CMD_NIQFLINT(rxqi) | + FW_PFVF_CMD_NIQ(rxq)); + c.type_to_neq = htonl(FW_PFVF_CMD_CMASK(cmask) | + FW_PFVF_CMD_PMASK(pmask) | + FW_PFVF_CMD_NEQ(txq)); + c.tc_to_nexactf = htonl(FW_PFVF_CMD_TC(tc) | FW_PFVF_CMD_NVI(vi) | + FW_PFVF_CMD_NEXACTF(nexact)); + c.r_caps_to_nethctrl = htonl(FW_PFVF_CMD_R_CAPS(rcaps) | + FW_PFVF_CMD_WX_CAPS(wxcaps) | + FW_PFVF_CMD_NETHCTRL(txq_eth_ctrl)); + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_alloc_vi - allocate a virtual interface + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @port: physical port associated with the VI + * @pf: the PF owning the VI + * @vf: the VF owning the VI + * @nmac: number of MAC addresses needed (1 to 5) + * @mac: the MAC addresses of the VI + * @rss_size: size of RSS table slice associated with this VI + * + * Allocates a virtual interface for the given physical port. If @mac is + * not %NULL it contains the MAC addresses of the VI as assigned by FW. + * @mac should be large enough to hold @nmac Ethernet addresses, they are + * stored consecutively so the space needed is @nmac * 6 bytes. + * Returns a negative error number or the non-negative VI id. + */ +int t4_alloc_vi(struct adapter *adap, unsigned int mbox, unsigned int port, + unsigned int pf, unsigned int vf, unsigned int nmac, u8 *mac, + unsigned int *rss_size) +{ + int ret; + struct fw_vi_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_vfn = htonl(FW_CMD_OP(FW_VI_CMD) | FW_CMD_REQUEST | + FW_CMD_WRITE | FW_CMD_EXEC | + FW_VI_CMD_PFN(pf) | FW_VI_CMD_VFN(vf)); + c.alloc_to_len16 = htonl(FW_VI_CMD_ALLOC | FW_LEN16(c)); + c.portid_pkd = FW_VI_CMD_PORTID(port); + c.nmac = nmac - 1; + + ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c); + if (ret) + return ret; + + if (mac) { + memcpy(mac, c.mac, sizeof(c.mac)); + switch (nmac) { + case 5: + memcpy(mac + 24, c.nmac3, sizeof(c.nmac3)); + case 4: + memcpy(mac + 18, c.nmac2, sizeof(c.nmac2)); + case 3: + memcpy(mac + 12, c.nmac1, sizeof(c.nmac1)); + case 2: + memcpy(mac + 6, c.nmac0, sizeof(c.nmac0)); + } + } + if (rss_size) + *rss_size = FW_VI_CMD_RSSSIZE_GET(ntohs(c.rsssize_pkd)); + return FW_VI_CMD_VIID_GET(ntohs(c.type_viid)); +} + +/** + * t4_set_rxmode - set Rx properties of a virtual interface + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @viid: the VI id + * @mtu: the new MTU or -1 + * @promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change + * @all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change + * @bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change + * @vlanex: 1 to enable HW VLAN extraction, 0 to disable it, -1 no change + * @sleep_ok: if true we may sleep while awaiting command completion + * + * Sets Rx properties of a virtual interface. + */ +int t4_set_rxmode(struct adapter *adap, unsigned int mbox, unsigned int viid, + int mtu, int promisc, int all_multi, int bcast, int vlanex, + bool sleep_ok) +{ + struct fw_vi_rxmode_cmd c; + + /* convert to FW values */ + if (mtu < 0) + mtu = FW_RXMODE_MTU_NO_CHG; + if (promisc < 0) + promisc = FW_VI_RXMODE_CMD_PROMISCEN_MASK; + if (all_multi < 0) + all_multi = FW_VI_RXMODE_CMD_ALLMULTIEN_MASK; + if (bcast < 0) + bcast = FW_VI_RXMODE_CMD_BROADCASTEN_MASK; + if (vlanex < 0) + vlanex = FW_VI_RXMODE_CMD_VLANEXEN_MASK; + + memset(&c, 0, sizeof(c)); + c.op_to_viid = htonl(FW_CMD_OP(FW_VI_RXMODE_CMD) | FW_CMD_REQUEST | + FW_CMD_WRITE | FW_VI_RXMODE_CMD_VIID(viid)); + c.retval_len16 = htonl(FW_LEN16(c)); + c.mtu_to_vlanexen = htonl(FW_VI_RXMODE_CMD_MTU(mtu) | + FW_VI_RXMODE_CMD_PROMISCEN(promisc) | + FW_VI_RXMODE_CMD_ALLMULTIEN(all_multi) | + FW_VI_RXMODE_CMD_BROADCASTEN(bcast) | + FW_VI_RXMODE_CMD_VLANEXEN(vlanex)); + return t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), NULL, sleep_ok); +} + +/** + * t4_alloc_mac_filt - allocates exact-match filters for MAC addresses + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @viid: the VI id + * @free: if true any existing filters for this VI id are first removed + * @naddr: the number of MAC addresses to allocate filters for (up to 7) + * @addr: the MAC address(es) + * @idx: where to store the index of each allocated filter + * @hash: pointer to hash address filter bitmap + * @sleep_ok: call is allowed to sleep + * + * Allocates an exact-match filter for each of the supplied addresses and + * sets it to the corresponding address. If @idx is not %NULL it should + * have at least @naddr entries, each of which will be set to the index of + * the filter allocated for the corresponding MAC address. If a filter + * could not be allocated for an address its index is set to 0xffff. + * If @hash is not %NULL addresses that fail to allocate an exact filter + * are hashed and update the hash filter bitmap pointed at by @hash. + * + * Returns a negative error number or the number of filters allocated. + */ +int t4_alloc_mac_filt(struct adapter *adap, unsigned int mbox, + unsigned int viid, bool free, unsigned int naddr, + const u8 **addr, u16 *idx, u64 *hash, bool sleep_ok) +{ + int i, ret; + struct fw_vi_mac_cmd c; + struct fw_vi_mac_exact *p; + unsigned int max_naddr = is_t4(adap->params.chip) ? + NUM_MPS_CLS_SRAM_L_INSTANCES : + NUM_MPS_T5_CLS_SRAM_L_INSTANCES; + + if (naddr > 7) + return -EINVAL; + + memset(&c, 0, sizeof(c)); + c.op_to_viid = htonl(FW_CMD_OP(FW_VI_MAC_CMD) | FW_CMD_REQUEST | + FW_CMD_WRITE | (free ? FW_CMD_EXEC : 0) | + FW_VI_MAC_CMD_VIID(viid)); + c.freemacs_to_len16 = htonl(FW_VI_MAC_CMD_FREEMACS(free) | + FW_CMD_LEN16((naddr + 2) / 2)); + + for (i = 0, p = c.u.exact; i < naddr; i++, p++) { + p->valid_to_idx = htons(FW_VI_MAC_CMD_VALID | + FW_VI_MAC_CMD_IDX(FW_VI_MAC_ADD_MAC)); + memcpy(p->macaddr, addr[i], sizeof(p->macaddr)); + } + + ret = t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), &c, sleep_ok); + if (ret) + return ret; + + for (i = 0, p = c.u.exact; i < naddr; i++, p++) { + u16 index = FW_VI_MAC_CMD_IDX_GET(ntohs(p->valid_to_idx)); + + if (idx) + idx[i] = index >= max_naddr ? 0xffff : index; + if (index < max_naddr) + ret++; + else if (hash) + *hash |= (1ULL << hash_mac_addr(addr[i])); + } + return ret; +} + +/** + * t4_change_mac - modifies the exact-match filter for a MAC address + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @viid: the VI id + * @idx: index of existing filter for old value of MAC address, or -1 + * @addr: the new MAC address value + * @persist: whether a new MAC allocation should be persistent + * @add_smt: if true also add the address to the HW SMT + * + * Modifies an exact-match filter and sets it to the new MAC address. + * Note that in general it is not possible to modify the value of a given + * filter so the generic way to modify an address filter is to free the one + * being used by the old address value and allocate a new filter for the + * new address value. @idx can be -1 if the address is a new addition. + * + * Returns a negative error number or the index of the filter with the new + * MAC value. + */ +int t4_change_mac(struct adapter *adap, unsigned int mbox, unsigned int viid, + int idx, const u8 *addr, bool persist, bool add_smt) +{ + int ret, mode; + struct fw_vi_mac_cmd c; + struct fw_vi_mac_exact *p = c.u.exact; + unsigned int max_mac_addr = is_t4(adap->params.chip) ? + NUM_MPS_CLS_SRAM_L_INSTANCES : + NUM_MPS_T5_CLS_SRAM_L_INSTANCES; + + if (idx < 0) /* new allocation */ + idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC; + mode = add_smt ? FW_VI_MAC_SMT_AND_MPSTCAM : FW_VI_MAC_MPS_TCAM_ENTRY; + + memset(&c, 0, sizeof(c)); + c.op_to_viid = htonl(FW_CMD_OP(FW_VI_MAC_CMD) | FW_CMD_REQUEST | + FW_CMD_WRITE | FW_VI_MAC_CMD_VIID(viid)); + c.freemacs_to_len16 = htonl(FW_CMD_LEN16(1)); + p->valid_to_idx = htons(FW_VI_MAC_CMD_VALID | + FW_VI_MAC_CMD_SMAC_RESULT(mode) | + FW_VI_MAC_CMD_IDX(idx)); + memcpy(p->macaddr, addr, sizeof(p->macaddr)); + + ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c); + if (ret == 0) { + ret = FW_VI_MAC_CMD_IDX_GET(ntohs(p->valid_to_idx)); + if (ret >= max_mac_addr) + ret = -ENOMEM; + } + return ret; +} + +/** + * t4_set_addr_hash - program the MAC inexact-match hash filter + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @viid: the VI id + * @ucast: whether the hash filter should also match unicast addresses + * @vec: the value to be written to the hash filter + * @sleep_ok: call is allowed to sleep + * + * Sets the 64-bit inexact-match hash filter for a virtual interface. + */ +int t4_set_addr_hash(struct adapter *adap, unsigned int mbox, unsigned int viid, + bool ucast, u64 vec, bool sleep_ok) +{ + struct fw_vi_mac_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_viid = htonl(FW_CMD_OP(FW_VI_MAC_CMD) | FW_CMD_REQUEST | + FW_CMD_WRITE | FW_VI_ENABLE_CMD_VIID(viid)); + c.freemacs_to_len16 = htonl(FW_VI_MAC_CMD_HASHVECEN | + FW_VI_MAC_CMD_HASHUNIEN(ucast) | + FW_CMD_LEN16(1)); + c.u.hash.hashvec = cpu_to_be64(vec); + return t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), NULL, sleep_ok); +} + +/** + * t4_enable_vi - enable/disable a virtual interface + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @viid: the VI id + * @rx_en: 1=enable Rx, 0=disable Rx + * @tx_en: 1=enable Tx, 0=disable Tx + * + * Enables/disables a virtual interface. + */ +int t4_enable_vi(struct adapter *adap, unsigned int mbox, unsigned int viid, + bool rx_en, bool tx_en) +{ + struct fw_vi_enable_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_viid = htonl(FW_CMD_OP(FW_VI_ENABLE_CMD) | FW_CMD_REQUEST | + FW_CMD_EXEC | FW_VI_ENABLE_CMD_VIID(viid)); + c.ien_to_len16 = htonl(FW_VI_ENABLE_CMD_IEN(rx_en) | + FW_VI_ENABLE_CMD_EEN(tx_en) | FW_LEN16(c)); + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_identify_port - identify a VI's port by blinking its LED + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @viid: the VI id + * @nblinks: how many times to blink LED at 2.5 Hz + * + * Identifies a VI's port by blinking its LED. + */ +int t4_identify_port(struct adapter *adap, unsigned int mbox, unsigned int viid, + unsigned int nblinks) +{ + struct fw_vi_enable_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_viid = htonl(FW_CMD_OP(FW_VI_ENABLE_CMD) | FW_CMD_REQUEST | + FW_CMD_EXEC | FW_VI_ENABLE_CMD_VIID(viid)); + c.ien_to_len16 = htonl(FW_VI_ENABLE_CMD_LED | FW_LEN16(c)); + c.blinkdur = htons(nblinks); + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_iq_free - free an ingress queue and its FLs + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @pf: the PF owning the queues + * @vf: the VF owning the queues + * @iqtype: the ingress queue type + * @iqid: ingress queue id + * @fl0id: FL0 queue id or 0xffff if no attached FL0 + * @fl1id: FL1 queue id or 0xffff if no attached FL1 + * + * Frees an ingress queue and its associated FLs, if any. + */ +int t4_iq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int iqtype, unsigned int iqid, + unsigned int fl0id, unsigned int fl1id) +{ + struct fw_iq_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_vfn = htonl(FW_CMD_OP(FW_IQ_CMD) | FW_CMD_REQUEST | + FW_CMD_EXEC | FW_IQ_CMD_PFN(pf) | + FW_IQ_CMD_VFN(vf)); + c.alloc_to_len16 = htonl(FW_IQ_CMD_FREE | FW_LEN16(c)); + c.type_to_iqandstindex = htonl(FW_IQ_CMD_TYPE(iqtype)); + c.iqid = htons(iqid); + c.fl0id = htons(fl0id); + c.fl1id = htons(fl1id); + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_eth_eq_free - free an Ethernet egress queue + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @pf: the PF owning the queue + * @vf: the VF owning the queue + * @eqid: egress queue id + * + * Frees an Ethernet egress queue. + */ +int t4_eth_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int eqid) +{ + struct fw_eq_eth_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_vfn = htonl(FW_CMD_OP(FW_EQ_ETH_CMD) | FW_CMD_REQUEST | + FW_CMD_EXEC | FW_EQ_ETH_CMD_PFN(pf) | + FW_EQ_ETH_CMD_VFN(vf)); + c.alloc_to_len16 = htonl(FW_EQ_ETH_CMD_FREE | FW_LEN16(c)); + c.eqid_pkd = htonl(FW_EQ_ETH_CMD_EQID(eqid)); + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_ctrl_eq_free - free a control egress queue + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @pf: the PF owning the queue + * @vf: the VF owning the queue + * @eqid: egress queue id + * + * Frees a control egress queue. + */ +int t4_ctrl_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int eqid) +{ + struct fw_eq_ctrl_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_vfn = htonl(FW_CMD_OP(FW_EQ_CTRL_CMD) | FW_CMD_REQUEST | + FW_CMD_EXEC | FW_EQ_CTRL_CMD_PFN(pf) | + FW_EQ_CTRL_CMD_VFN(vf)); + c.alloc_to_len16 = htonl(FW_EQ_CTRL_CMD_FREE | FW_LEN16(c)); + c.cmpliqid_eqid = htonl(FW_EQ_CTRL_CMD_EQID(eqid)); + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_ofld_eq_free - free an offload egress queue + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @pf: the PF owning the queue + * @vf: the VF owning the queue + * @eqid: egress queue id + * + * Frees a control egress queue. + */ +int t4_ofld_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int eqid) +{ + struct fw_eq_ofld_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_vfn = htonl(FW_CMD_OP(FW_EQ_OFLD_CMD) | FW_CMD_REQUEST | + FW_CMD_EXEC | FW_EQ_OFLD_CMD_PFN(pf) | + FW_EQ_OFLD_CMD_VFN(vf)); + c.alloc_to_len16 = htonl(FW_EQ_OFLD_CMD_FREE | FW_LEN16(c)); + c.eqid_pkd = htonl(FW_EQ_OFLD_CMD_EQID(eqid)); + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** + * t4_handle_fw_rpl - process a FW reply message + * @adap: the adapter + * @rpl: start of the FW message + * + * Processes a FW message, such as link state change messages. + */ +int t4_handle_fw_rpl(struct adapter *adap, const __be64 *rpl) +{ + u8 opcode = *(const u8 *)rpl; + + if (opcode == FW_PORT_CMD) { /* link/module state change message */ + int speed = 0, fc = 0; + const struct fw_port_cmd *p = (void *)rpl; + int chan = FW_PORT_CMD_PORTID_GET(ntohl(p->op_to_portid)); + int port = adap->chan_map[chan]; + struct port_info *pi = adap2pinfo(adap, port); + struct link_config *lc = &pi->link_cfg; + u32 stat = ntohl(p->u.info.lstatus_to_modtype); + int link_ok = (stat & FW_PORT_CMD_LSTATUS) != 0; + u32 mod = FW_PORT_CMD_MODTYPE_GET(stat); + + if (stat & FW_PORT_CMD_RXPAUSE) + fc |= PAUSE_RX; + if (stat & FW_PORT_CMD_TXPAUSE) + fc |= PAUSE_TX; + if (stat & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100M)) + speed = 100; + else if (stat & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_1G)) + speed = 1000; + else if (stat & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_10G)) + speed = 10000; + else if (stat & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_40G)) + speed = 40000; + + if (link_ok != lc->link_ok || speed != lc->speed || + fc != lc->fc) { /* something changed */ + lc->link_ok = link_ok; + lc->speed = speed; + lc->fc = fc; + t4_os_link_changed(adap, port, link_ok); + } + if (mod != pi->mod_type) { + pi->mod_type = mod; + t4_os_portmod_changed(adap, port); + } + } + return 0; +} + +static void get_pci_mode(struct adapter *adapter, struct pci_params *p) +{ + u16 val; + + if (pci_is_pcie(adapter->pdev)) { + pcie_capability_read_word(adapter->pdev, PCI_EXP_LNKSTA, &val); + p->speed = val & PCI_EXP_LNKSTA_CLS; + p->width = (val & PCI_EXP_LNKSTA_NLW) >> 4; + } +} + +/** + * init_link_config - initialize a link's SW state + * @lc: structure holding the link state + * @caps: link capabilities + * + * Initializes the SW state maintained for each link, including the link's + * capabilities and default speed/flow-control/autonegotiation settings. + */ +static void init_link_config(struct link_config *lc, unsigned int caps) +{ + lc->supported = caps; + lc->requested_speed = 0; + lc->speed = 0; + lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX; + if (lc->supported & FW_PORT_CAP_ANEG) { + lc->advertising = lc->supported & ADVERT_MASK; + lc->autoneg = AUTONEG_ENABLE; + lc->requested_fc |= PAUSE_AUTONEG; + } else { + lc->advertising = 0; + lc->autoneg = AUTONEG_DISABLE; + } +} + +int t4_wait_dev_ready(struct adapter *adap) +{ + if (t4_read_reg(adap, PL_WHOAMI) != 0xffffffff) + return 0; + msleep(500); + return t4_read_reg(adap, PL_WHOAMI) != 0xffffffff ? 0 : -EIO; +} + +static int get_flash_params(struct adapter *adap) +{ + int ret; + u32 info; + + ret = sf1_write(adap, 1, 1, 0, SF_RD_ID); + if (!ret) + ret = sf1_read(adap, 3, 0, 1, &info); + t4_write_reg(adap, SF_OP, 0); /* unlock SF */ + if (ret) + return ret; + + if ((info & 0xff) != 0x20) /* not a Numonix flash */ + return -EINVAL; + info >>= 16; /* log2 of size */ + if (info >= 0x14 && info < 0x18) + adap->params.sf_nsec = 1 << (info - 16); + else if (info == 0x18) + adap->params.sf_nsec = 64; + else + return -EINVAL; + adap->params.sf_size = 1 << info; + adap->params.sf_fw_start = + t4_read_reg(adap, CIM_BOOT_CFG) & BOOTADDR_MASK; + return 0; +} + +/** + * t4_prep_adapter - prepare SW and HW for operation + * @adapter: the adapter + * @reset: if true perform a HW reset + * + * Initialize adapter SW state for the various HW modules, set initial + * values for some adapter tunables, take PHYs out of reset, and + * initialize the MDIO interface. + */ +int t4_prep_adapter(struct adapter *adapter) +{ + int ret, ver; + uint16_t device_id; + u32 pl_rev; + + ret = t4_wait_dev_ready(adapter); + if (ret < 0) + return ret; + + get_pci_mode(adapter, &adapter->params.pci); + pl_rev = G_REV(t4_read_reg(adapter, PL_REV)); + + ret = get_flash_params(adapter); + if (ret < 0) { + dev_err(adapter->pdev_dev, "error %d identifying flash\n", ret); + return ret; + } + + /* Retrieve adapter's device ID + */ + pci_read_config_word(adapter->pdev, PCI_DEVICE_ID, &device_id); + ver = device_id >> 12; + adapter->params.chip = 0; + switch (ver) { + case CHELSIO_T4: + adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T4, pl_rev); + break; + case CHELSIO_T5: + adapter->params.chip |= CHELSIO_CHIP_CODE(CHELSIO_T5, pl_rev); + break; + default: + dev_err(adapter->pdev_dev, "Device %d is not supported\n", + device_id); + return -EINVAL; + } + + init_cong_ctrl(adapter->params.a_wnd, adapter->params.b_wnd); + + /* + * Default port for debugging in case we can't reach FW. + */ + adapter->params.nports = 1; + adapter->params.portvec = 1; + adapter->params.vpd.cclk = 50000; + return 0; +} + +/** + * t4_init_tp_params - initialize adap->params.tp + * @adap: the adapter + * + * Initialize various fields of the adapter's TP Parameters structure. + */ +int t4_init_tp_params(struct adapter *adap) +{ + int chan; + u32 v; + + v = t4_read_reg(adap, TP_TIMER_RESOLUTION); + adap->params.tp.tre = TIMERRESOLUTION_GET(v); + adap->params.tp.dack_re = DELAYEDACKRESOLUTION_GET(v); + + /* MODQ_REQ_MAP defaults to setting queues 0-3 to chan 0-3 */ + for (chan = 0; chan < NCHAN; chan++) + adap->params.tp.tx_modq[chan] = chan; + + /* Cache the adapter's Compressed Filter Mode and global Incress + * Configuration. + */ + t4_read_indirect(adap, TP_PIO_ADDR, TP_PIO_DATA, + &adap->params.tp.vlan_pri_map, 1, + TP_VLAN_PRI_MAP); + t4_read_indirect(adap, TP_PIO_ADDR, TP_PIO_DATA, + &adap->params.tp.ingress_config, 1, + TP_INGRESS_CONFIG); + + /* Now that we have TP_VLAN_PRI_MAP cached, we can calculate the field + * shift positions of several elements of the Compressed Filter Tuple + * for this adapter which we need frequently ... + */ + adap->params.tp.vlan_shift = t4_filter_field_shift(adap, F_VLAN); + adap->params.tp.vnic_shift = t4_filter_field_shift(adap, F_VNIC_ID); + adap->params.tp.port_shift = t4_filter_field_shift(adap, F_PORT); + adap->params.tp.protocol_shift = t4_filter_field_shift(adap, + F_PROTOCOL); + + /* If TP_INGRESS_CONFIG.VNID == 0, then TP_VLAN_PRI_MAP.VNIC_ID + * represents the presense of an Outer VLAN instead of a VNIC ID. + */ + if ((adap->params.tp.ingress_config & F_VNIC) == 0) + adap->params.tp.vnic_shift = -1; + + return 0; +} + +/** + * t4_filter_field_shift - calculate filter field shift + * @adap: the adapter + * @filter_sel: the desired field (from TP_VLAN_PRI_MAP bits) + * + * Return the shift position of a filter field within the Compressed + * Filter Tuple. The filter field is specified via its selection bit + * within TP_VLAN_PRI_MAL (filter mode). E.g. F_VLAN. + */ +int t4_filter_field_shift(const struct adapter *adap, int filter_sel) +{ + unsigned int filter_mode = adap->params.tp.vlan_pri_map; + unsigned int sel; + int field_shift; + + if ((filter_mode & filter_sel) == 0) + return -1; + + for (sel = 1, field_shift = 0; sel < filter_sel; sel <<= 1) { + switch (filter_mode & sel) { + case F_FCOE: + field_shift += W_FT_FCOE; + break; + case F_PORT: + field_shift += W_FT_PORT; + break; + case F_VNIC_ID: + field_shift += W_FT_VNIC_ID; + break; + case F_VLAN: + field_shift += W_FT_VLAN; + break; + case F_TOS: + field_shift += W_FT_TOS; + break; + case F_PROTOCOL: + field_shift += W_FT_PROTOCOL; + break; + case F_ETHERTYPE: + field_shift += W_FT_ETHERTYPE; + break; + case F_MACMATCH: + field_shift += W_FT_MACMATCH; + break; + case F_MPSHITTYPE: + field_shift += W_FT_MPSHITTYPE; + break; + case F_FRAGMENTATION: + field_shift += W_FT_FRAGMENTATION; + break; + } + } + return field_shift; +} + +int t4_port_init(struct adapter *adap, int mbox, int pf, int vf) +{ + u8 addr[6]; + int ret, i, j = 0; + struct fw_port_cmd c; + struct fw_rss_vi_config_cmd rvc; + + memset(&c, 0, sizeof(c)); + memset(&rvc, 0, sizeof(rvc)); + + for_each_port(adap, i) { + unsigned int rss_size; + struct port_info *p = adap2pinfo(adap, i); + + while ((adap->params.portvec & (1 << j)) == 0) + j++; + + c.op_to_portid = htonl(FW_CMD_OP(FW_PORT_CMD) | + FW_CMD_REQUEST | FW_CMD_READ | + FW_PORT_CMD_PORTID(j)); + c.action_to_len16 = htonl( + FW_PORT_CMD_ACTION(FW_PORT_ACTION_GET_PORT_INFO) | + FW_LEN16(c)); + ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c); + if (ret) + return ret; + + ret = t4_alloc_vi(adap, mbox, j, pf, vf, 1, addr, &rss_size); + if (ret < 0) + return ret; + + p->viid = ret; + p->tx_chan = j; + p->lport = j; + p->rss_size = rss_size; + memcpy(adap->port[i]->dev_addr, addr, ETH_ALEN); + adap->port[i]->dev_port = j; + + ret = ntohl(c.u.info.lstatus_to_modtype); + p->mdio_addr = (ret & FW_PORT_CMD_MDIOCAP) ? + FW_PORT_CMD_MDIOADDR_GET(ret) : -1; + p->port_type = FW_PORT_CMD_PTYPE_GET(ret); + p->mod_type = FW_PORT_MOD_TYPE_NA; + + rvc.op_to_viid = htonl(FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) | + FW_CMD_REQUEST | FW_CMD_READ | + FW_RSS_VI_CONFIG_CMD_VIID(p->viid)); + rvc.retval_len16 = htonl(FW_LEN16(rvc)); + ret = t4_wr_mbox(adap, mbox, &rvc, sizeof(rvc), &rvc); + if (ret) + return ret; + p->rss_mode = ntohl(rvc.u.basicvirtual.defaultq_to_udpen); + + init_link_config(&p->link_cfg, ntohs(c.u.info.pcap)); + j++; + } + return 0; +} diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h new file mode 100644 index 00000000000..71b799b5b0f --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h @@ -0,0 +1,220 @@ +/* + * This file is part of the Chelsio T4 Ethernet driver for Linux. + * + * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef __T4_HW_H +#define __T4_HW_H + +#include <linux/types.h> + +enum { + NCHAN = 4, /* # of HW channels */ + MAX_MTU = 9600, /* max MAC MTU, excluding header + FCS */ + EEPROMSIZE = 17408, /* Serial EEPROM physical size */ + EEPROMVSIZE = 32768, /* Serial EEPROM virtual address space size */ + EEPROMPFSIZE = 1024, /* EEPROM writable area size for PFn, n>0 */ + RSS_NENTRIES = 2048, /* # of entries in RSS mapping table */ + TCB_SIZE = 128, /* TCB size */ + NMTUS = 16, /* size of MTU table */ + NCCTRL_WIN = 32, /* # of congestion control windows */ + L2T_SIZE = 4096, /* # of L2T entries */ + MBOX_LEN = 64, /* mailbox size in bytes */ + TRACE_LEN = 112, /* length of trace data and mask */ + FILTER_OPT_LEN = 36, /* filter tuple width for optional components */ + NWOL_PAT = 8, /* # of WoL patterns */ + WOL_PAT_LEN = 128, /* length of WoL patterns */ +}; + +enum { + SF_PAGE_SIZE = 256, /* serial flash page size */ + SF_SEC_SIZE = 64 * 1024, /* serial flash sector size */ +}; + +enum { RSP_TYPE_FLBUF, RSP_TYPE_CPL, RSP_TYPE_INTR }; /* response entry types */ + +enum { MBOX_OWNER_NONE, MBOX_OWNER_FW, MBOX_OWNER_DRV }; /* mailbox owners */ + +enum { + SGE_MAX_WR_LEN = 512, /* max WR size in bytes */ + SGE_NTIMERS = 6, /* # of interrupt holdoff timer values */ + SGE_NCOUNTERS = 4, /* # of interrupt packet counter values */ + SGE_MAX_IQ_SIZE = 65520, + + SGE_TIMER_RSTRT_CNTR = 6, /* restart RX packet threshold counter */ + SGE_TIMER_UPD_CIDX = 7, /* update cidx only */ + + SGE_EQ_IDXSIZE = 64, /* egress queue pidx/cidx unit size */ + + SGE_INTRDST_PCI = 0, /* interrupt destination is PCI-E */ + SGE_INTRDST_IQ = 1, /* destination is an ingress queue */ + + SGE_UPDATEDEL_NONE = 0, /* ingress queue pidx update delivery */ + SGE_UPDATEDEL_INTR = 1, /* interrupt */ + SGE_UPDATEDEL_STPG = 2, /* status page */ + SGE_UPDATEDEL_BOTH = 3, /* interrupt and status page */ + + SGE_HOSTFCMODE_NONE = 0, /* egress queue cidx updates */ + SGE_HOSTFCMODE_IQ = 1, /* sent to ingress queue */ + SGE_HOSTFCMODE_STPG = 2, /* sent to status page */ + SGE_HOSTFCMODE_BOTH = 3, /* ingress queue and status page */ + + SGE_FETCHBURSTMIN_16B = 0,/* egress queue descriptor fetch minimum */ + SGE_FETCHBURSTMIN_32B = 1, + SGE_FETCHBURSTMIN_64B = 2, + SGE_FETCHBURSTMIN_128B = 3, + + SGE_FETCHBURSTMAX_64B = 0,/* egress queue descriptor fetch maximum */ + SGE_FETCHBURSTMAX_128B = 1, + SGE_FETCHBURSTMAX_256B = 2, + SGE_FETCHBURSTMAX_512B = 3, + + SGE_CIDXFLUSHTHRESH_1 = 0,/* egress queue cidx flush threshold */ + SGE_CIDXFLUSHTHRESH_2 = 1, + SGE_CIDXFLUSHTHRESH_4 = 2, + SGE_CIDXFLUSHTHRESH_8 = 3, + SGE_CIDXFLUSHTHRESH_16 = 4, + SGE_CIDXFLUSHTHRESH_32 = 5, + SGE_CIDXFLUSHTHRESH_64 = 6, + SGE_CIDXFLUSHTHRESH_128 = 7, + + SGE_INGPADBOUNDARY_SHIFT = 5,/* ingress queue pad boundary */ +}; + +struct sge_qstat { /* data written to SGE queue status entries */ + __be32 qid; + __be16 cidx; + __be16 pidx; +}; + +/* + * Structure for last 128 bits of response descriptors + */ +struct rsp_ctrl { + __be32 hdrbuflen_pidx; + __be32 pldbuflen_qid; + union { + u8 type_gen; + __be64 last_flit; + }; +}; + +#define RSPD_NEWBUF 0x80000000U +#define RSPD_LEN(x) (((x) >> 0) & 0x7fffffffU) +#define RSPD_QID(x) RSPD_LEN(x) + +#define RSPD_GEN(x) ((x) >> 7) +#define RSPD_TYPE(x) (((x) >> 4) & 3) + +#define QINTR_CNT_EN 0x1 +#define QINTR_TIMER_IDX(x) ((x) << 1) +#define QINTR_TIMER_IDX_GET(x) (((x) >> 1) & 0x7) + +/* + * Flash layout. + */ +#define FLASH_START(start) ((start) * SF_SEC_SIZE) +#define FLASH_MAX_SIZE(nsecs) ((nsecs) * SF_SEC_SIZE) + +enum { + /* + * Various Expansion-ROM boot images, etc. + */ + FLASH_EXP_ROM_START_SEC = 0, + FLASH_EXP_ROM_NSECS = 6, + FLASH_EXP_ROM_START = FLASH_START(FLASH_EXP_ROM_START_SEC), + FLASH_EXP_ROM_MAX_SIZE = FLASH_MAX_SIZE(FLASH_EXP_ROM_NSECS), + + /* + * iSCSI Boot Firmware Table (iBFT) and other driver-related + * parameters ... + */ + FLASH_IBFT_START_SEC = 6, + FLASH_IBFT_NSECS = 1, + FLASH_IBFT_START = FLASH_START(FLASH_IBFT_START_SEC), + FLASH_IBFT_MAX_SIZE = FLASH_MAX_SIZE(FLASH_IBFT_NSECS), + + /* + * Boot configuration data. + */ + FLASH_BOOTCFG_START_SEC = 7, + FLASH_BOOTCFG_NSECS = 1, + FLASH_BOOTCFG_START = FLASH_START(FLASH_BOOTCFG_START_SEC), + FLASH_BOOTCFG_MAX_SIZE = FLASH_MAX_SIZE(FLASH_BOOTCFG_NSECS), + + /* + * Location of firmware image in FLASH. + */ + FLASH_FW_START_SEC = 8, + FLASH_FW_NSECS = 8, + FLASH_FW_START = FLASH_START(FLASH_FW_START_SEC), + FLASH_FW_MAX_SIZE = FLASH_MAX_SIZE(FLASH_FW_NSECS), + + /* + * iSCSI persistent/crash information. + */ + FLASH_ISCSI_CRASH_START_SEC = 29, + FLASH_ISCSI_CRASH_NSECS = 1, + FLASH_ISCSI_CRASH_START = FLASH_START(FLASH_ISCSI_CRASH_START_SEC), + FLASH_ISCSI_CRASH_MAX_SIZE = FLASH_MAX_SIZE(FLASH_ISCSI_CRASH_NSECS), + + /* + * FCoE persistent/crash information. + */ + FLASH_FCOE_CRASH_START_SEC = 30, + FLASH_FCOE_CRASH_NSECS = 1, + FLASH_FCOE_CRASH_START = FLASH_START(FLASH_FCOE_CRASH_START_SEC), + FLASH_FCOE_CRASH_MAX_SIZE = FLASH_MAX_SIZE(FLASH_FCOE_CRASH_NSECS), + + /* + * Location of Firmware Configuration File in FLASH. Since the FPGA + * "FLASH" is smaller we need to store the Configuration File in a + * different location -- which will overlap the end of the firmware + * image if firmware ever gets that large ... + */ + FLASH_CFG_START_SEC = 31, + FLASH_CFG_NSECS = 1, + FLASH_CFG_START = FLASH_START(FLASH_CFG_START_SEC), + FLASH_CFG_MAX_SIZE = FLASH_MAX_SIZE(FLASH_CFG_NSECS), + + FLASH_FPGA_CFG_START_SEC = 15, + FLASH_FPGA_CFG_START = FLASH_START(FLASH_FPGA_CFG_START_SEC), + + /* + * Sectors 32-63 are reserved for FLASH failover. + */ +}; + +#undef FLASH_START +#undef FLASH_MAX_SIZE + +#endif /* __T4_HW_H */ diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h new file mode 100644 index 00000000000..973eb11aa98 --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h @@ -0,0 +1,835 @@ +/* + * This file is part of the Chelsio T4 Ethernet driver for Linux. + * + * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef __T4_MSG_H +#define __T4_MSG_H + +#include <linux/types.h> + +enum { + CPL_PASS_OPEN_REQ = 0x1, + CPL_PASS_ACCEPT_RPL = 0x2, + CPL_ACT_OPEN_REQ = 0x3, + CPL_SET_TCB_FIELD = 0x5, + CPL_GET_TCB = 0x6, + CPL_CLOSE_CON_REQ = 0x8, + CPL_CLOSE_LISTSRV_REQ = 0x9, + CPL_ABORT_REQ = 0xA, + CPL_ABORT_RPL = 0xB, + CPL_RX_DATA_ACK = 0xD, + CPL_TX_PKT = 0xE, + CPL_L2T_WRITE_REQ = 0x12, + CPL_TID_RELEASE = 0x1A, + + CPL_CLOSE_LISTSRV_RPL = 0x20, + CPL_L2T_WRITE_RPL = 0x23, + CPL_PASS_OPEN_RPL = 0x24, + CPL_ACT_OPEN_RPL = 0x25, + CPL_PEER_CLOSE = 0x26, + CPL_ABORT_REQ_RSS = 0x2B, + CPL_ABORT_RPL_RSS = 0x2D, + + CPL_CLOSE_CON_RPL = 0x32, + CPL_ISCSI_HDR = 0x33, + CPL_RDMA_CQE = 0x35, + CPL_RDMA_CQE_READ_RSP = 0x36, + CPL_RDMA_CQE_ERR = 0x37, + CPL_RX_DATA = 0x39, + CPL_SET_TCB_RPL = 0x3A, + CPL_RX_PKT = 0x3B, + CPL_RX_DDP_COMPLETE = 0x3F, + + CPL_ACT_ESTABLISH = 0x40, + CPL_PASS_ESTABLISH = 0x41, + CPL_RX_DATA_DDP = 0x42, + CPL_PASS_ACCEPT_REQ = 0x44, + CPL_TRACE_PKT_T5 = 0x48, + + CPL_RDMA_READ_REQ = 0x60, + + CPL_PASS_OPEN_REQ6 = 0x81, + CPL_ACT_OPEN_REQ6 = 0x83, + + CPL_RDMA_TERMINATE = 0xA2, + CPL_RDMA_WRITE = 0xA4, + CPL_SGE_EGR_UPDATE = 0xA5, + + CPL_TRACE_PKT = 0xB0, + + CPL_FW4_MSG = 0xC0, + CPL_FW4_PLD = 0xC1, + CPL_FW4_ACK = 0xC3, + + CPL_FW6_MSG = 0xE0, + CPL_FW6_PLD = 0xE1, + CPL_TX_PKT_LSO = 0xED, + CPL_TX_PKT_XT = 0xEE, + + NUM_CPL_CMDS +}; + +enum CPL_error { + CPL_ERR_NONE = 0, + CPL_ERR_TCAM_FULL = 3, + CPL_ERR_BAD_LENGTH = 15, + CPL_ERR_BAD_ROUTE = 18, + CPL_ERR_CONN_RESET = 20, + CPL_ERR_CONN_EXIST_SYNRECV = 21, + CPL_ERR_CONN_EXIST = 22, + CPL_ERR_ARP_MISS = 23, + CPL_ERR_BAD_SYN = 24, + CPL_ERR_CONN_TIMEDOUT = 30, + CPL_ERR_XMIT_TIMEDOUT = 31, + CPL_ERR_PERSIST_TIMEDOUT = 32, + CPL_ERR_FINWAIT2_TIMEDOUT = 33, + CPL_ERR_KEEPALIVE_TIMEDOUT = 34, + CPL_ERR_RTX_NEG_ADVICE = 35, + CPL_ERR_PERSIST_NEG_ADVICE = 36, + CPL_ERR_KEEPALV_NEG_ADVICE = 37, + CPL_ERR_ABORT_FAILED = 42, + CPL_ERR_IWARP_FLM = 50, +}; + +enum { + ULP_MODE_NONE = 0, + ULP_MODE_ISCSI = 2, + ULP_MODE_RDMA = 4, + ULP_MODE_TCPDDP = 5, + ULP_MODE_FCOE = 6, +}; + +enum { + ULP_CRC_HEADER = 1 << 0, + ULP_CRC_DATA = 1 << 1 +}; + +enum { + CPL_ABORT_SEND_RST = 0, + CPL_ABORT_NO_RST, +}; + +enum { /* TX_PKT_XT checksum types */ + TX_CSUM_TCP = 0, + TX_CSUM_UDP = 1, + TX_CSUM_CRC16 = 4, + TX_CSUM_CRC32 = 5, + TX_CSUM_CRC32C = 6, + TX_CSUM_FCOE = 7, + TX_CSUM_TCPIP = 8, + TX_CSUM_UDPIP = 9, + TX_CSUM_TCPIP6 = 10, + TX_CSUM_UDPIP6 = 11, + TX_CSUM_IP = 12, +}; + +union opcode_tid { + __be32 opcode_tid; + u8 opcode; +}; + +#define CPL_OPCODE(x) ((x) << 24) +#define G_CPL_OPCODE(x) (((x) >> 24) & 0xFF) +#define MK_OPCODE_TID(opcode, tid) (CPL_OPCODE(opcode) | (tid)) +#define OPCODE_TID(cmd) ((cmd)->ot.opcode_tid) +#define GET_TID(cmd) (ntohl(OPCODE_TID(cmd)) & 0xFFFFFF) + +/* partitioning of TID fields that also carry a queue id */ +#define GET_TID_TID(x) ((x) & 0x3fff) +#define GET_TID_QID(x) (((x) >> 14) & 0x3ff) +#define TID_QID(x) ((x) << 14) + +struct rss_header { + u8 opcode; +#if defined(__LITTLE_ENDIAN_BITFIELD) + u8 channel:2; + u8 filter_hit:1; + u8 filter_tid:1; + u8 hash_type:2; + u8 ipv6:1; + u8 send2fw:1; +#else + u8 send2fw:1; + u8 ipv6:1; + u8 hash_type:2; + u8 filter_tid:1; + u8 filter_hit:1; + u8 channel:2; +#endif + __be16 qid; + __be32 hash_val; +}; + +struct work_request_hdr { + __be32 wr_hi; + __be32 wr_mid; + __be64 wr_lo; +}; + +/* wr_hi fields */ +#define S_WR_OP 24 +#define V_WR_OP(x) ((__u64)(x) << S_WR_OP) + +#define WR_HDR struct work_request_hdr wr + +/* option 0 fields */ +#define S_MSS_IDX 60 +#define M_MSS_IDX 0xF +#define V_MSS_IDX(x) ((__u64)(x) << S_MSS_IDX) +#define G_MSS_IDX(x) (((x) >> S_MSS_IDX) & M_MSS_IDX) + +/* option 2 fields */ +#define S_RSS_QUEUE 0 +#define M_RSS_QUEUE 0x3FF +#define V_RSS_QUEUE(x) ((x) << S_RSS_QUEUE) +#define G_RSS_QUEUE(x) (((x) >> S_RSS_QUEUE) & M_RSS_QUEUE) + +struct cpl_pass_open_req { + WR_HDR; + union opcode_tid ot; + __be16 local_port; + __be16 peer_port; + __be32 local_ip; + __be32 peer_ip; + __be64 opt0; +#define TX_CHAN(x) ((x) << 2) +#define NO_CONG(x) ((x) << 4) +#define DELACK(x) ((x) << 5) +#define ULP_MODE(x) ((x) << 8) +#define RCV_BUFSIZ(x) ((x) << 12) +#define RCV_BUFSIZ_MASK 0x3FFU +#define DSCP(x) ((x) << 22) +#define SMAC_SEL(x) ((u64)(x) << 28) +#define L2T_IDX(x) ((u64)(x) << 36) +#define TCAM_BYPASS(x) ((u64)(x) << 48) +#define NAGLE(x) ((u64)(x) << 49) +#define WND_SCALE(x) ((u64)(x) << 50) +#define KEEP_ALIVE(x) ((u64)(x) << 54) +#define MSS_IDX(x) ((u64)(x) << 60) + __be64 opt1; +#define SYN_RSS_ENABLE (1 << 0) +#define SYN_RSS_QUEUE(x) ((x) << 2) +#define CONN_POLICY_ASK (1 << 22) +}; + +struct cpl_pass_open_req6 { + WR_HDR; + union opcode_tid ot; + __be16 local_port; + __be16 peer_port; + __be64 local_ip_hi; + __be64 local_ip_lo; + __be64 peer_ip_hi; + __be64 peer_ip_lo; + __be64 opt0; + __be64 opt1; +}; + +struct cpl_pass_open_rpl { + union opcode_tid ot; + u8 rsvd[3]; + u8 status; +}; + +struct cpl_pass_accept_rpl { + WR_HDR; + union opcode_tid ot; + __be32 opt2; +#define RSS_QUEUE(x) ((x) << 0) +#define RSS_QUEUE_VALID (1 << 10) +#define RX_COALESCE_VALID(x) ((x) << 11) +#define RX_COALESCE(x) ((x) << 12) +#define PACE(x) ((x) << 16) +#define TX_QUEUE(x) ((x) << 23) +#define RX_CHANNEL(x) ((x) << 26) +#define CCTRL_ECN(x) ((x) << 27) +#define WND_SCALE_EN(x) ((x) << 28) +#define TSTAMPS_EN(x) ((x) << 29) +#define SACK_EN(x) ((x) << 30) + __be64 opt0; +}; + +struct cpl_t5_pass_accept_rpl { + WR_HDR; + union opcode_tid ot; + __be32 opt2; + __be64 opt0; + __be32 iss; + __be32 rsvd; +}; + +struct cpl_act_open_req { + WR_HDR; + union opcode_tid ot; + __be16 local_port; + __be16 peer_port; + __be32 local_ip; + __be32 peer_ip; + __be64 opt0; + __be32 params; + __be32 opt2; +}; + +#define S_FILTER_TUPLE 24 +#define M_FILTER_TUPLE 0xFFFFFFFFFF +#define V_FILTER_TUPLE(x) ((x) << S_FILTER_TUPLE) +#define G_FILTER_TUPLE(x) (((x) >> S_FILTER_TUPLE) & M_FILTER_TUPLE) +struct cpl_t5_act_open_req { + WR_HDR; + union opcode_tid ot; + __be16 local_port; + __be16 peer_port; + __be32 local_ip; + __be32 peer_ip; + __be64 opt0; + __be32 rsvd; + __be32 opt2; + __be64 params; +}; + +struct cpl_act_open_req6 { + WR_HDR; + union opcode_tid ot; + __be16 local_port; + __be16 peer_port; + __be64 local_ip_hi; + __be64 local_ip_lo; + __be64 peer_ip_hi; + __be64 peer_ip_lo; + __be64 opt0; + __be32 params; + __be32 opt2; +}; + +struct cpl_t5_act_open_req6 { + WR_HDR; + union opcode_tid ot; + __be16 local_port; + __be16 peer_port; + __be64 local_ip_hi; + __be64 local_ip_lo; + __be64 peer_ip_hi; + __be64 peer_ip_lo; + __be64 opt0; + __be32 rsvd; + __be32 opt2; + __be64 params; +}; + +struct cpl_act_open_rpl { + union opcode_tid ot; + __be32 atid_status; +#define GET_AOPEN_STATUS(x) ((x) & 0xff) +#define GET_AOPEN_ATID(x) (((x) >> 8) & 0xffffff) +}; + +struct cpl_pass_establish { + union opcode_tid ot; + __be32 rsvd; + __be32 tos_stid; +#define PASS_OPEN_TID(x) ((x) << 0) +#define PASS_OPEN_TOS(x) ((x) << 24) +#define GET_PASS_OPEN_TID(x) (((x) >> 0) & 0xFFFFFF) +#define GET_POPEN_TID(x) ((x) & 0xffffff) +#define GET_POPEN_TOS(x) (((x) >> 24) & 0xff) + __be16 mac_idx; + __be16 tcp_opt; +#define GET_TCPOPT_WSCALE_OK(x) (((x) >> 5) & 1) +#define GET_TCPOPT_SACK(x) (((x) >> 6) & 1) +#define GET_TCPOPT_TSTAMP(x) (((x) >> 7) & 1) +#define GET_TCPOPT_SND_WSCALE(x) (((x) >> 8) & 0xf) +#define GET_TCPOPT_MSS(x) (((x) >> 12) & 0xf) + __be32 snd_isn; + __be32 rcv_isn; +}; + +struct cpl_act_establish { + union opcode_tid ot; + __be32 rsvd; + __be32 tos_atid; + __be16 mac_idx; + __be16 tcp_opt; + __be32 snd_isn; + __be32 rcv_isn; +}; + +struct cpl_get_tcb { + WR_HDR; + union opcode_tid ot; + __be16 reply_ctrl; +#define QUEUENO(x) ((x) << 0) +#define REPLY_CHAN(x) ((x) << 14) +#define NO_REPLY(x) ((x) << 15) + __be16 cookie; +}; + +struct cpl_set_tcb_field { + WR_HDR; + union opcode_tid ot; + __be16 reply_ctrl; + __be16 word_cookie; +#define TCB_WORD(x) ((x) << 0) +#define TCB_COOKIE(x) ((x) << 5) +#define GET_TCB_COOKIE(x) (((x) >> 5) & 7) + __be64 mask; + __be64 val; +}; + +struct cpl_set_tcb_rpl { + union opcode_tid ot; + __be16 rsvd; + u8 cookie; + u8 status; + __be64 oldval; +}; + +struct cpl_close_con_req { + WR_HDR; + union opcode_tid ot; + __be32 rsvd; +}; + +struct cpl_close_con_rpl { + union opcode_tid ot; + u8 rsvd[3]; + u8 status; + __be32 snd_nxt; + __be32 rcv_nxt; +}; + +struct cpl_close_listsvr_req { + WR_HDR; + union opcode_tid ot; + __be16 reply_ctrl; +#define LISTSVR_IPV6(x) ((x) << 14) + __be16 rsvd; +}; + +struct cpl_close_listsvr_rpl { + union opcode_tid ot; + u8 rsvd[3]; + u8 status; +}; + +struct cpl_abort_req_rss { + union opcode_tid ot; + u8 rsvd[3]; + u8 status; +}; + +struct cpl_abort_req { + WR_HDR; + union opcode_tid ot; + __be32 rsvd0; + u8 rsvd1; + u8 cmd; + u8 rsvd2[6]; +}; + +struct cpl_abort_rpl_rss { + union opcode_tid ot; + u8 rsvd[3]; + u8 status; +}; + +struct cpl_abort_rpl { + WR_HDR; + union opcode_tid ot; + __be32 rsvd0; + u8 rsvd1; + u8 cmd; + u8 rsvd2[6]; +}; + +struct cpl_peer_close { + union opcode_tid ot; + __be32 rcv_nxt; +}; + +struct cpl_tid_release { + WR_HDR; + union opcode_tid ot; + __be32 rsvd; +}; + +struct cpl_tx_pkt_core { + __be32 ctrl0; +#define TXPKT_VF(x) ((x) << 0) +#define TXPKT_PF(x) ((x) << 8) +#define TXPKT_VF_VLD (1 << 11) +#define TXPKT_OVLAN_IDX(x) ((x) << 12) +#define TXPKT_INTF(x) ((x) << 16) +#define TXPKT_INS_OVLAN (1 << 21) +#define TXPKT_OPCODE(x) ((x) << 24) + __be16 pack; + __be16 len; + __be64 ctrl1; +#define TXPKT_CSUM_END(x) ((x) << 12) +#define TXPKT_CSUM_START(x) ((x) << 20) +#define TXPKT_IPHDR_LEN(x) ((u64)(x) << 20) +#define TXPKT_CSUM_LOC(x) ((u64)(x) << 30) +#define TXPKT_ETHHDR_LEN(x) ((u64)(x) << 34) +#define TXPKT_CSUM_TYPE(x) ((u64)(x) << 40) +#define TXPKT_VLAN(x) ((u64)(x) << 44) +#define TXPKT_VLAN_VLD (1ULL << 60) +#define TXPKT_IPCSUM_DIS (1ULL << 62) +#define TXPKT_L4CSUM_DIS (1ULL << 63) +}; + +struct cpl_tx_pkt { + WR_HDR; + struct cpl_tx_pkt_core c; +}; + +#define cpl_tx_pkt_xt cpl_tx_pkt + +struct cpl_tx_pkt_lso_core { + __be32 lso_ctrl; +#define LSO_TCPHDR_LEN(x) ((x) << 0) +#define LSO_IPHDR_LEN(x) ((x) << 4) +#define LSO_ETHHDR_LEN(x) ((x) << 16) +#define LSO_IPV6(x) ((x) << 20) +#define LSO_LAST_SLICE (1 << 22) +#define LSO_FIRST_SLICE (1 << 23) +#define LSO_OPCODE(x) ((x) << 24) + __be16 ipid_ofst; + __be16 mss; + __be32 seqno_offset; + __be32 len; + /* encapsulated CPL (TX_PKT, TX_PKT_XT or TX_DATA) follows here */ +}; + +struct cpl_tx_pkt_lso { + WR_HDR; + struct cpl_tx_pkt_lso_core c; + /* encapsulated CPL (TX_PKT, TX_PKT_XT or TX_DATA) follows here */ +}; + +struct cpl_iscsi_hdr { + union opcode_tid ot; + __be16 pdu_len_ddp; +#define ISCSI_PDU_LEN(x) ((x) & 0x7FFF) +#define ISCSI_DDP (1 << 15) + __be16 len; + __be32 seq; + __be16 urg; + u8 rsvd; + u8 status; +}; + +struct cpl_rx_data { + union opcode_tid ot; + __be16 rsvd; + __be16 len; + __be32 seq; + __be16 urg; +#if defined(__LITTLE_ENDIAN_BITFIELD) + u8 dack_mode:2; + u8 psh:1; + u8 heartbeat:1; + u8 ddp_off:1; + u8 :3; +#else + u8 :3; + u8 ddp_off:1; + u8 heartbeat:1; + u8 psh:1; + u8 dack_mode:2; +#endif + u8 status; +}; + +struct cpl_rx_data_ack { + WR_HDR; + union opcode_tid ot; + __be32 credit_dack; +#define RX_CREDITS(x) ((x) << 0) +#define RX_FORCE_ACK(x) ((x) << 28) +}; + +struct cpl_rx_pkt { + struct rss_header rsshdr; + u8 opcode; +#if defined(__LITTLE_ENDIAN_BITFIELD) + u8 iff:4; + u8 csum_calc:1; + u8 ipmi_pkt:1; + u8 vlan_ex:1; + u8 ip_frag:1; +#else + u8 ip_frag:1; + u8 vlan_ex:1; + u8 ipmi_pkt:1; + u8 csum_calc:1; + u8 iff:4; +#endif + __be16 csum; + __be16 vlan; + __be16 len; + __be32 l2info; +#define RXF_UDP (1 << 22) +#define RXF_TCP (1 << 23) +#define RXF_IP (1 << 24) +#define RXF_IP6 (1 << 25) + __be16 hdr_len; + __be16 err_vec; +}; + +/* rx_pkt.l2info fields */ +#define S_RX_ETHHDR_LEN 0 +#define M_RX_ETHHDR_LEN 0x1F +#define V_RX_ETHHDR_LEN(x) ((x) << S_RX_ETHHDR_LEN) +#define G_RX_ETHHDR_LEN(x) (((x) >> S_RX_ETHHDR_LEN) & M_RX_ETHHDR_LEN) + +#define S_RX_T5_ETHHDR_LEN 0 +#define M_RX_T5_ETHHDR_LEN 0x3F +#define V_RX_T5_ETHHDR_LEN(x) ((x) << S_RX_T5_ETHHDR_LEN) +#define G_RX_T5_ETHHDR_LEN(x) (((x) >> S_RX_T5_ETHHDR_LEN) & M_RX_T5_ETHHDR_LEN) + +#define S_RX_MACIDX 8 +#define M_RX_MACIDX 0x1FF +#define V_RX_MACIDX(x) ((x) << S_RX_MACIDX) +#define G_RX_MACIDX(x) (((x) >> S_RX_MACIDX) & M_RX_MACIDX) + +#define S_RXF_SYN 21 +#define V_RXF_SYN(x) ((x) << S_RXF_SYN) +#define F_RXF_SYN V_RXF_SYN(1U) + +#define S_RX_CHAN 28 +#define M_RX_CHAN 0xF +#define V_RX_CHAN(x) ((x) << S_RX_CHAN) +#define G_RX_CHAN(x) (((x) >> S_RX_CHAN) & M_RX_CHAN) + +/* rx_pkt.hdr_len fields */ +#define S_RX_TCPHDR_LEN 0 +#define M_RX_TCPHDR_LEN 0x3F +#define V_RX_TCPHDR_LEN(x) ((x) << S_RX_TCPHDR_LEN) +#define G_RX_TCPHDR_LEN(x) (((x) >> S_RX_TCPHDR_LEN) & M_RX_TCPHDR_LEN) + +#define S_RX_IPHDR_LEN 6 +#define M_RX_IPHDR_LEN 0x3FF +#define V_RX_IPHDR_LEN(x) ((x) << S_RX_IPHDR_LEN) +#define G_RX_IPHDR_LEN(x) (((x) >> S_RX_IPHDR_LEN) & M_RX_IPHDR_LEN) + +struct cpl_trace_pkt { + u8 opcode; + u8 intf; +#if defined(__LITTLE_ENDIAN_BITFIELD) + u8 runt:4; + u8 filter_hit:4; + u8 :6; + u8 err:1; + u8 trunc:1; +#else + u8 filter_hit:4; + u8 runt:4; + u8 trunc:1; + u8 err:1; + u8 :6; +#endif + __be16 rsvd; + __be16 len; + __be64 tstamp; +}; + +struct cpl_t5_trace_pkt { + __u8 opcode; + __u8 intf; +#if defined(__LITTLE_ENDIAN_BITFIELD) + __u8 runt:4; + __u8 filter_hit:4; + __u8:6; + __u8 err:1; + __u8 trunc:1; +#else + __u8 filter_hit:4; + __u8 runt:4; + __u8 trunc:1; + __u8 err:1; + __u8:6; +#endif + __be16 rsvd; + __be16 len; + __be64 tstamp; + __be64 rsvd1; +}; + +struct cpl_l2t_write_req { + WR_HDR; + union opcode_tid ot; + __be16 params; +#define L2T_W_INFO(x) ((x) << 2) +#define L2T_W_PORT(x) ((x) << 8) +#define L2T_W_NOREPLY(x) ((x) << 15) + __be16 l2t_idx; + __be16 vlan; + u8 dst_mac[6]; +}; + +struct cpl_l2t_write_rpl { + union opcode_tid ot; + u8 status; + u8 rsvd[3]; +}; + +struct cpl_rdma_terminate { + union opcode_tid ot; + __be16 rsvd; + __be16 len; +}; + +struct cpl_sge_egr_update { + __be32 opcode_qid; +#define EGR_QID(x) ((x) & 0x1FFFF) + __be16 cidx; + __be16 pidx; +}; + +/* cpl_fw*.type values */ +enum { + FW_TYPE_CMD_RPL = 0, + FW_TYPE_WR_RPL = 1, + FW_TYPE_CQE = 2, + FW_TYPE_OFLD_CONNECTION_WR_RPL = 3, + FW_TYPE_RSSCPL = 4, +}; + +struct cpl_fw4_pld { + u8 opcode; + u8 rsvd0[3]; + u8 type; + u8 rsvd1; + __be16 len; + __be64 data; + __be64 rsvd2; +}; + +struct cpl_fw6_pld { + u8 opcode; + u8 rsvd[5]; + __be16 len; + __be64 data[4]; +}; + +struct cpl_fw4_msg { + u8 opcode; + u8 type; + __be16 rsvd0; + __be32 rsvd1; + __be64 data[2]; +}; + +struct cpl_fw4_ack { + union opcode_tid ot; + u8 credits; + u8 rsvd0[2]; + u8 seq_vld; + __be32 snd_nxt; + __be32 snd_una; + __be64 rsvd1; +}; + +struct cpl_fw6_msg { + u8 opcode; + u8 type; + __be16 rsvd0; + __be32 rsvd1; + __be64 data[4]; +}; + +/* cpl_fw6_msg.type values */ +enum { + FW6_TYPE_CMD_RPL = 0, + FW6_TYPE_WR_RPL = 1, + FW6_TYPE_CQE = 2, + FW6_TYPE_OFLD_CONNECTION_WR_RPL = 3, + FW6_TYPE_RSSCPL = FW_TYPE_RSSCPL, +}; + +struct cpl_fw6_msg_ofld_connection_wr_rpl { + __u64 cookie; + __be32 tid; /* or atid in case of active failure */ + __u8 t_state; + __u8 retval; + __u8 rsvd[2]; +}; + +enum { + ULP_TX_MEM_READ = 2, + ULP_TX_MEM_WRITE = 3, + ULP_TX_PKT = 4 +}; + +enum { + ULP_TX_SC_NOOP = 0x80, + ULP_TX_SC_IMM = 0x81, + ULP_TX_SC_DSGL = 0x82, + ULP_TX_SC_ISGL = 0x83 +}; + +struct ulptx_sge_pair { + __be32 len[2]; + __be64 addr[2]; +}; + +struct ulptx_sgl { + __be32 cmd_nsge; +#define ULPTX_CMD(x) ((x) << 24) +#define ULPTX_NSGE(x) ((x) << 0) +#define ULPTX_MORE (1U << 23) + __be32 len0; + __be64 addr0; + struct ulptx_sge_pair sge[0]; +}; + +struct ulp_mem_io { + WR_HDR; + __be32 cmd; +#define ULP_MEMIO_ORDER(x) ((x) << 23) + __be32 len16; /* command length */ + __be32 dlen; /* data length in 32-byte units */ +#define ULP_MEMIO_DATA_LEN(x) ((x) << 0) + __be32 lock_addr; +#define ULP_MEMIO_ADDR(x) ((x) << 0) +#define ULP_MEMIO_LOCK(x) ((x) << 31) +}; + +#define S_T5_ULP_MEMIO_IMM 23 +#define V_T5_ULP_MEMIO_IMM(x) ((x) << S_T5_ULP_MEMIO_IMM) +#define F_T5_ULP_MEMIO_IMM V_T5_ULP_MEMIO_IMM(1U) + +#define S_T5_ULP_MEMIO_ORDER 22 +#define V_T5_ULP_MEMIO_ORDER(x) ((x) << S_T5_ULP_MEMIO_ORDER) +#define F_T5_ULP_MEMIO_ORDER V_T5_ULP_MEMIO_ORDER(1U) + +#endif /* __T4_MSG_H */ diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h new file mode 100644 index 00000000000..225ad8a5722 --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h @@ -0,0 +1,1298 @@ +/* + * This file is part of the Chelsio T4 Ethernet driver for Linux. + * + * Copyright (c) 2010 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef __T4_REGS_H +#define __T4_REGS_H + +#define MYPF_BASE 0x1b000 +#define MYPF_REG(reg_addr) (MYPF_BASE + (reg_addr)) + +#define PF0_BASE 0x1e000 +#define PF0_REG(reg_addr) (PF0_BASE + (reg_addr)) + +#define PF_STRIDE 0x400 +#define PF_BASE(idx) (PF0_BASE + (idx) * PF_STRIDE) +#define PF_REG(idx, reg) (PF_BASE(idx) + (reg)) + +#define MYPORT_BASE 0x1c000 +#define MYPORT_REG(reg_addr) (MYPORT_BASE + (reg_addr)) + +#define PORT0_BASE 0x20000 +#define PORT0_REG(reg_addr) (PORT0_BASE + (reg_addr)) + +#define PORT_STRIDE 0x2000 +#define PORT_BASE(idx) (PORT0_BASE + (idx) * PORT_STRIDE) +#define PORT_REG(idx, reg) (PORT_BASE(idx) + (reg)) + +#define EDC_STRIDE (EDC_1_BASE_ADDR - EDC_0_BASE_ADDR) +#define EDC_REG(reg, idx) (reg + EDC_STRIDE * idx) + +#define PCIE_MEM_ACCESS_REG(reg_addr, idx) ((reg_addr) + (idx) * 8) +#define PCIE_MAILBOX_REG(reg_addr, idx) ((reg_addr) + (idx) * 8) +#define MC_BIST_STATUS_REG(reg_addr, idx) ((reg_addr) + (idx) * 4) +#define EDC_BIST_STATUS_REG(reg_addr, idx) ((reg_addr) + (idx) * 4) + +#define SGE_PF_KDOORBELL 0x0 +#define QID_MASK 0xffff8000U +#define QID_SHIFT 15 +#define QID(x) ((x) << QID_SHIFT) +#define DBPRIO(x) ((x) << 14) +#define DBTYPE(x) ((x) << 13) +#define PIDX_MASK 0x00003fffU +#define PIDX_SHIFT 0 +#define PIDX(x) ((x) << PIDX_SHIFT) +#define S_PIDX_T5 0 +#define M_PIDX_T5 0x1fffU +#define PIDX_T5(x) (((x) >> S_PIDX_T5) & M_PIDX_T5) + + +#define SGE_PF_GTS 0x4 +#define INGRESSQID_MASK 0xffff0000U +#define INGRESSQID_SHIFT 16 +#define INGRESSQID(x) ((x) << INGRESSQID_SHIFT) +#define TIMERREG_MASK 0x0000e000U +#define TIMERREG_SHIFT 13 +#define TIMERREG(x) ((x) << TIMERREG_SHIFT) +#define SEINTARM_MASK 0x00001000U +#define SEINTARM_SHIFT 12 +#define SEINTARM(x) ((x) << SEINTARM_SHIFT) +#define CIDXINC_MASK 0x00000fffU +#define CIDXINC_SHIFT 0 +#define CIDXINC(x) ((x) << CIDXINC_SHIFT) + +#define X_RXPKTCPLMODE_SPLIT 1 +#define X_INGPADBOUNDARY_SHIFT 5 + +#define SGE_CONTROL 0x1008 +#define DCASYSTYPE 0x00080000U +#define RXPKTCPLMODE_MASK 0x00040000U +#define RXPKTCPLMODE_SHIFT 18 +#define RXPKTCPLMODE(x) ((x) << RXPKTCPLMODE_SHIFT) +#define EGRSTATUSPAGESIZE_MASK 0x00020000U +#define EGRSTATUSPAGESIZE_SHIFT 17 +#define EGRSTATUSPAGESIZE(x) ((x) << EGRSTATUSPAGESIZE_SHIFT) +#define PKTSHIFT_MASK 0x00001c00U +#define PKTSHIFT_SHIFT 10 +#define PKTSHIFT(x) ((x) << PKTSHIFT_SHIFT) +#define PKTSHIFT_GET(x) (((x) & PKTSHIFT_MASK) >> PKTSHIFT_SHIFT) +#define INGPCIEBOUNDARY_MASK 0x00000380U +#define INGPCIEBOUNDARY_SHIFT 7 +#define INGPCIEBOUNDARY(x) ((x) << INGPCIEBOUNDARY_SHIFT) +#define INGPADBOUNDARY_MASK 0x00000070U +#define INGPADBOUNDARY_SHIFT 4 +#define INGPADBOUNDARY(x) ((x) << INGPADBOUNDARY_SHIFT) +#define INGPADBOUNDARY_GET(x) (((x) & INGPADBOUNDARY_MASK) \ + >> INGPADBOUNDARY_SHIFT) +#define EGRPCIEBOUNDARY_MASK 0x0000000eU +#define EGRPCIEBOUNDARY_SHIFT 1 +#define EGRPCIEBOUNDARY(x) ((x) << EGRPCIEBOUNDARY_SHIFT) +#define GLOBALENABLE 0x00000001U + +#define SGE_HOST_PAGE_SIZE 0x100c + +#define HOSTPAGESIZEPF7_MASK 0x0000000fU +#define HOSTPAGESIZEPF7_SHIFT 28 +#define HOSTPAGESIZEPF7(x) ((x) << HOSTPAGESIZEPF7_SHIFT) + +#define HOSTPAGESIZEPF6_MASK 0x0000000fU +#define HOSTPAGESIZEPF6_SHIFT 24 +#define HOSTPAGESIZEPF6(x) ((x) << HOSTPAGESIZEPF6_SHIFT) + +#define HOSTPAGESIZEPF5_MASK 0x0000000fU +#define HOSTPAGESIZEPF5_SHIFT 20 +#define HOSTPAGESIZEPF5(x) ((x) << HOSTPAGESIZEPF5_SHIFT) + +#define HOSTPAGESIZEPF4_MASK 0x0000000fU +#define HOSTPAGESIZEPF4_SHIFT 16 +#define HOSTPAGESIZEPF4(x) ((x) << HOSTPAGESIZEPF4_SHIFT) + +#define HOSTPAGESIZEPF3_MASK 0x0000000fU +#define HOSTPAGESIZEPF3_SHIFT 12 +#define HOSTPAGESIZEPF3(x) ((x) << HOSTPAGESIZEPF3_SHIFT) + +#define HOSTPAGESIZEPF2_MASK 0x0000000fU +#define HOSTPAGESIZEPF2_SHIFT 8 +#define HOSTPAGESIZEPF2(x) ((x) << HOSTPAGESIZEPF2_SHIFT) + +#define HOSTPAGESIZEPF1_MASK 0x0000000fU +#define HOSTPAGESIZEPF1_SHIFT 4 +#define HOSTPAGESIZEPF1(x) ((x) << HOSTPAGESIZEPF1_SHIFT) + +#define HOSTPAGESIZEPF0_MASK 0x0000000fU +#define HOSTPAGESIZEPF0_SHIFT 0 +#define HOSTPAGESIZEPF0(x) ((x) << HOSTPAGESIZEPF0_SHIFT) + +#define SGE_EGRESS_QUEUES_PER_PAGE_PF 0x1010 +#define QUEUESPERPAGEPF0_MASK 0x0000000fU +#define QUEUESPERPAGEPF0_GET(x) ((x) & QUEUESPERPAGEPF0_MASK) + +#define QUEUESPERPAGEPF1 4 + +#define SGE_INT_CAUSE1 0x1024 +#define SGE_INT_CAUSE2 0x1030 +#define SGE_INT_CAUSE3 0x103c +#define ERR_FLM_DBP 0x80000000U +#define ERR_FLM_IDMA1 0x40000000U +#define ERR_FLM_IDMA0 0x20000000U +#define ERR_FLM_HINT 0x10000000U +#define ERR_PCIE_ERROR3 0x08000000U +#define ERR_PCIE_ERROR2 0x04000000U +#define ERR_PCIE_ERROR1 0x02000000U +#define ERR_PCIE_ERROR0 0x01000000U +#define ERR_TIMER_ABOVE_MAX_QID 0x00800000U +#define ERR_CPL_EXCEED_IQE_SIZE 0x00400000U +#define ERR_INVALID_CIDX_INC 0x00200000U +#define ERR_ITP_TIME_PAUSED 0x00100000U +#define ERR_CPL_OPCODE_0 0x00080000U +#define ERR_DROPPED_DB 0x00040000U +#define ERR_DATA_CPL_ON_HIGH_QID1 0x00020000U +#define ERR_DATA_CPL_ON_HIGH_QID0 0x00010000U +#define ERR_BAD_DB_PIDX3 0x00008000U +#define ERR_BAD_DB_PIDX2 0x00004000U +#define ERR_BAD_DB_PIDX1 0x00002000U +#define ERR_BAD_DB_PIDX0 0x00001000U +#define ERR_ING_PCIE_CHAN 0x00000800U +#define ERR_ING_CTXT_PRIO 0x00000400U +#define ERR_EGR_CTXT_PRIO 0x00000200U +#define DBFIFO_HP_INT 0x00000100U +#define DBFIFO_LP_INT 0x00000080U +#define REG_ADDRESS_ERR 0x00000040U +#define INGRESS_SIZE_ERR 0x00000020U +#define EGRESS_SIZE_ERR 0x00000010U +#define ERR_INV_CTXT3 0x00000008U +#define ERR_INV_CTXT2 0x00000004U +#define ERR_INV_CTXT1 0x00000002U +#define ERR_INV_CTXT0 0x00000001U + +#define SGE_INT_ENABLE3 0x1040 +#define SGE_FL_BUFFER_SIZE0 0x1044 +#define SGE_FL_BUFFER_SIZE1 0x1048 +#define SGE_FL_BUFFER_SIZE2 0x104c +#define SGE_FL_BUFFER_SIZE3 0x1050 +#define SGE_FL_BUFFER_SIZE4 0x1054 +#define SGE_FL_BUFFER_SIZE5 0x1058 +#define SGE_FL_BUFFER_SIZE6 0x105c +#define SGE_FL_BUFFER_SIZE7 0x1060 +#define SGE_FL_BUFFER_SIZE8 0x1064 + +#define SGE_INGRESS_RX_THRESHOLD 0x10a0 +#define THRESHOLD_0_MASK 0x3f000000U +#define THRESHOLD_0_SHIFT 24 +#define THRESHOLD_0(x) ((x) << THRESHOLD_0_SHIFT) +#define THRESHOLD_0_GET(x) (((x) & THRESHOLD_0_MASK) >> THRESHOLD_0_SHIFT) +#define THRESHOLD_1_MASK 0x003f0000U +#define THRESHOLD_1_SHIFT 16 +#define THRESHOLD_1(x) ((x) << THRESHOLD_1_SHIFT) +#define THRESHOLD_1_GET(x) (((x) & THRESHOLD_1_MASK) >> THRESHOLD_1_SHIFT) +#define THRESHOLD_2_MASK 0x00003f00U +#define THRESHOLD_2_SHIFT 8 +#define THRESHOLD_2(x) ((x) << THRESHOLD_2_SHIFT) +#define THRESHOLD_2_GET(x) (((x) & THRESHOLD_2_MASK) >> THRESHOLD_2_SHIFT) +#define THRESHOLD_3_MASK 0x0000003fU +#define THRESHOLD_3_SHIFT 0 +#define THRESHOLD_3(x) ((x) << THRESHOLD_3_SHIFT) +#define THRESHOLD_3_GET(x) (((x) & THRESHOLD_3_MASK) >> THRESHOLD_3_SHIFT) + +#define SGE_CONM_CTRL 0x1094 +#define EGRTHRESHOLD_MASK 0x00003f00U +#define EGRTHRESHOLDshift 8 +#define EGRTHRESHOLD(x) ((x) << EGRTHRESHOLDshift) +#define EGRTHRESHOLD_GET(x) (((x) & EGRTHRESHOLD_MASK) >> EGRTHRESHOLDshift) + +#define EGRTHRESHOLDPACKING_MASK 0x3fU +#define EGRTHRESHOLDPACKING_SHIFT 14 +#define EGRTHRESHOLDPACKING(x) ((x) << EGRTHRESHOLDPACKING_SHIFT) +#define EGRTHRESHOLDPACKING_GET(x) (((x) >> EGRTHRESHOLDPACKING_SHIFT) & \ + EGRTHRESHOLDPACKING_MASK) + +#define SGE_DBFIFO_STATUS 0x10a4 +#define HP_INT_THRESH_SHIFT 28 +#define HP_INT_THRESH_MASK 0xfU +#define HP_INT_THRESH(x) ((x) << HP_INT_THRESH_SHIFT) +#define LP_INT_THRESH_SHIFT 12 +#define LP_INT_THRESH_MASK 0xfU +#define LP_INT_THRESH(x) ((x) << LP_INT_THRESH_SHIFT) + +#define SGE_DOORBELL_CONTROL 0x10a8 +#define ENABLE_DROP (1 << 13) + +#define S_NOCOALESCE 26 +#define V_NOCOALESCE(x) ((x) << S_NOCOALESCE) +#define F_NOCOALESCE V_NOCOALESCE(1U) + +#define SGE_TIMER_VALUE_0_AND_1 0x10b8 +#define TIMERVALUE0_MASK 0xffff0000U +#define TIMERVALUE0_SHIFT 16 +#define TIMERVALUE0(x) ((x) << TIMERVALUE0_SHIFT) +#define TIMERVALUE0_GET(x) (((x) & TIMERVALUE0_MASK) >> TIMERVALUE0_SHIFT) +#define TIMERVALUE1_MASK 0x0000ffffU +#define TIMERVALUE1_SHIFT 0 +#define TIMERVALUE1(x) ((x) << TIMERVALUE1_SHIFT) +#define TIMERVALUE1_GET(x) (((x) & TIMERVALUE1_MASK) >> TIMERVALUE1_SHIFT) + +#define SGE_TIMER_VALUE_2_AND_3 0x10bc +#define TIMERVALUE2_MASK 0xffff0000U +#define TIMERVALUE2_SHIFT 16 +#define TIMERVALUE2(x) ((x) << TIMERVALUE2_SHIFT) +#define TIMERVALUE2_GET(x) (((x) & TIMERVALUE2_MASK) >> TIMERVALUE2_SHIFT) +#define TIMERVALUE3_MASK 0x0000ffffU +#define TIMERVALUE3_SHIFT 0 +#define TIMERVALUE3(x) ((x) << TIMERVALUE3_SHIFT) +#define TIMERVALUE3_GET(x) (((x) & TIMERVALUE3_MASK) >> TIMERVALUE3_SHIFT) + +#define SGE_TIMER_VALUE_4_AND_5 0x10c0 +#define TIMERVALUE4_MASK 0xffff0000U +#define TIMERVALUE4_SHIFT 16 +#define TIMERVALUE4(x) ((x) << TIMERVALUE4_SHIFT) +#define TIMERVALUE4_GET(x) (((x) & TIMERVALUE4_MASK) >> TIMERVALUE4_SHIFT) +#define TIMERVALUE5_MASK 0x0000ffffU +#define TIMERVALUE5_SHIFT 0 +#define TIMERVALUE5(x) ((x) << TIMERVALUE5_SHIFT) +#define TIMERVALUE5_GET(x) (((x) & TIMERVALUE5_MASK) >> TIMERVALUE5_SHIFT) + +#define SGE_DEBUG_INDEX 0x10cc +#define SGE_DEBUG_DATA_HIGH 0x10d0 +#define SGE_DEBUG_DATA_LOW 0x10d4 +#define SGE_DEBUG_DATA_LOW_INDEX_2 0x12c8 +#define SGE_DEBUG_DATA_LOW_INDEX_3 0x12cc +#define SGE_DEBUG_DATA_HIGH_INDEX_10 0x12a8 +#define SGE_INGRESS_QUEUES_PER_PAGE_PF 0x10f4 + +#define S_HP_INT_THRESH 28 +#define M_HP_INT_THRESH 0xfU +#define V_HP_INT_THRESH(x) ((x) << S_HP_INT_THRESH) +#define S_LP_INT_THRESH_T5 18 +#define V_LP_INT_THRESH_T5(x) ((x) << S_LP_INT_THRESH_T5) +#define M_LP_COUNT_T5 0x3ffffU +#define G_LP_COUNT_T5(x) (((x) >> S_LP_COUNT) & M_LP_COUNT_T5) +#define M_HP_COUNT 0x7ffU +#define S_HP_COUNT 16 +#define G_HP_COUNT(x) (((x) >> S_HP_COUNT) & M_HP_COUNT) +#define S_LP_INT_THRESH 12 +#define M_LP_INT_THRESH 0xfU +#define M_LP_INT_THRESH_T5 0xfffU +#define V_LP_INT_THRESH(x) ((x) << S_LP_INT_THRESH) +#define M_LP_COUNT 0x7ffU +#define S_LP_COUNT 0 +#define G_LP_COUNT(x) (((x) >> S_LP_COUNT) & M_LP_COUNT) +#define A_SGE_DBFIFO_STATUS 0x10a4 + +#define SGE_STAT_TOTAL 0x10e4 +#define SGE_STAT_MATCH 0x10e8 + +#define SGE_STAT_CFG 0x10ec +#define S_STATSOURCE_T5 9 +#define STATSOURCE_T5(x) ((x) << S_STATSOURCE_T5) + +#define SGE_DBFIFO_STATUS2 0x1118 +#define M_HP_COUNT_T5 0x3ffU +#define G_HP_COUNT_T5(x) ((x) & M_HP_COUNT_T5) +#define S_HP_INT_THRESH_T5 10 +#define M_HP_INT_THRESH_T5 0xfU +#define V_HP_INT_THRESH_T5(x) ((x) << S_HP_INT_THRESH_T5) + +#define S_ENABLE_DROP 13 +#define V_ENABLE_DROP(x) ((x) << S_ENABLE_DROP) +#define F_ENABLE_DROP V_ENABLE_DROP(1U) +#define S_DROPPED_DB 0 +#define V_DROPPED_DB(x) ((x) << S_DROPPED_DB) +#define F_DROPPED_DB V_DROPPED_DB(1U) +#define A_SGE_DOORBELL_CONTROL 0x10a8 + +#define A_SGE_CTXT_CMD 0x11fc +#define A_SGE_DBQ_CTXT_BADDR 0x1084 + +#define PCIE_PF_CFG 0x40 +#define AIVEC(x) ((x) << 4) +#define AIVEC_MASK 0x3ffU + +#define PCIE_PF_CLI 0x44 +#define PCIE_INT_CAUSE 0x3004 +#define UNXSPLCPLERR 0x20000000U +#define PCIEPINT 0x10000000U +#define PCIESINT 0x08000000U +#define RPLPERR 0x04000000U +#define RXWRPERR 0x02000000U +#define RXCPLPERR 0x01000000U +#define PIOTAGPERR 0x00800000U +#define MATAGPERR 0x00400000U +#define INTXCLRPERR 0x00200000U +#define FIDPERR 0x00100000U +#define CFGSNPPERR 0x00080000U +#define HRSPPERR 0x00040000U +#define HREQPERR 0x00020000U +#define HCNTPERR 0x00010000U +#define DRSPPERR 0x00008000U +#define DREQPERR 0x00004000U +#define DCNTPERR 0x00002000U +#define CRSPPERR 0x00001000U +#define CREQPERR 0x00000800U +#define CCNTPERR 0x00000400U +#define TARTAGPERR 0x00000200U +#define PIOREQPERR 0x00000100U +#define PIOCPLPERR 0x00000080U +#define MSIXDIPERR 0x00000040U +#define MSIXDATAPERR 0x00000020U +#define MSIXADDRHPERR 0x00000010U +#define MSIXADDRLPERR 0x00000008U +#define MSIDATAPERR 0x00000004U +#define MSIADDRHPERR 0x00000002U +#define MSIADDRLPERR 0x00000001U + +#define READRSPERR 0x20000000U +#define TRGT1GRPPERR 0x10000000U +#define IPSOTPERR 0x08000000U +#define IPRXDATAGRPPERR 0x02000000U +#define IPRXHDRGRPPERR 0x01000000U +#define MAGRPPERR 0x00400000U +#define VFIDPERR 0x00200000U +#define HREQWRPERR 0x00010000U +#define DREQWRPERR 0x00002000U +#define MSTTAGQPERR 0x00000400U +#define PIOREQGRPPERR 0x00000100U +#define PIOCPLGRPPERR 0x00000080U +#define MSIXSTIPERR 0x00000004U +#define MSTTIMEOUTPERR 0x00000002U +#define MSTGRPPERR 0x00000001U + +#define PCIE_NONFAT_ERR 0x3010 +#define PCIE_MEM_ACCESS_BASE_WIN 0x3068 +#define S_PCIEOFST 10 +#define M_PCIEOFST 0x3fffffU +#define GET_PCIEOFST(x) (((x) >> S_PCIEOFST) & M_PCIEOFST) +#define PCIEOFST_MASK 0xfffffc00U +#define BIR_MASK 0x00000300U +#define BIR_SHIFT 8 +#define BIR(x) ((x) << BIR_SHIFT) +#define WINDOW_MASK 0x000000ffU +#define WINDOW_SHIFT 0 +#define WINDOW(x) ((x) << WINDOW_SHIFT) +#define PCIE_MEM_ACCESS_OFFSET 0x306c + +#define S_PFNUM 0 +#define V_PFNUM(x) ((x) << S_PFNUM) + +#define PCIE_FW 0x30b8 +#define PCIE_FW_ERR 0x80000000U +#define PCIE_FW_INIT 0x40000000U +#define PCIE_FW_HALT 0x20000000U +#define PCIE_FW_MASTER_VLD 0x00008000U +#define PCIE_FW_MASTER(x) ((x) << 12) +#define PCIE_FW_MASTER_MASK 0x7 +#define PCIE_FW_MASTER_GET(x) (((x) >> 12) & PCIE_FW_MASTER_MASK) + +#define PCIE_CORE_UTL_SYSTEM_BUS_AGENT_STATUS 0x5908 +#define RNPP 0x80000000U +#define RPCP 0x20000000U +#define RCIP 0x08000000U +#define RCCP 0x04000000U +#define RFTP 0x00800000U +#define PTRP 0x00100000U + +#define PCIE_CORE_UTL_PCI_EXPRESS_PORT_STATUS 0x59a4 +#define TPCP 0x40000000U +#define TNPP 0x20000000U +#define TFTP 0x10000000U +#define TCAP 0x08000000U +#define TCIP 0x04000000U +#define RCAP 0x02000000U +#define PLUP 0x00800000U +#define PLDN 0x00400000U +#define OTDD 0x00200000U +#define GTRP 0x00100000U +#define RDPE 0x00040000U +#define TDCE 0x00020000U +#define TDUE 0x00010000U + +#define MC_INT_CAUSE 0x7518 +#define ECC_UE_INT_CAUSE 0x00000004U +#define ECC_CE_INT_CAUSE 0x00000002U +#define PERR_INT_CAUSE 0x00000001U + +#define MC_ECC_STATUS 0x751c +#define ECC_CECNT_MASK 0xffff0000U +#define ECC_CECNT_SHIFT 16 +#define ECC_CECNT(x) ((x) << ECC_CECNT_SHIFT) +#define ECC_CECNT_GET(x) (((x) & ECC_CECNT_MASK) >> ECC_CECNT_SHIFT) +#define ECC_UECNT_MASK 0x0000ffffU +#define ECC_UECNT_SHIFT 0 +#define ECC_UECNT(x) ((x) << ECC_UECNT_SHIFT) +#define ECC_UECNT_GET(x) (((x) & ECC_UECNT_MASK) >> ECC_UECNT_SHIFT) + +#define MC_BIST_CMD 0x7600 +#define START_BIST 0x80000000U +#define BIST_CMD_GAP_MASK 0x0000ff00U +#define BIST_CMD_GAP_SHIFT 8 +#define BIST_CMD_GAP(x) ((x) << BIST_CMD_GAP_SHIFT) +#define BIST_OPCODE_MASK 0x00000003U +#define BIST_OPCODE_SHIFT 0 +#define BIST_OPCODE(x) ((x) << BIST_OPCODE_SHIFT) + +#define MC_BIST_CMD_ADDR 0x7604 +#define MC_BIST_CMD_LEN 0x7608 +#define MC_BIST_DATA_PATTERN 0x760c +#define BIST_DATA_TYPE_MASK 0x0000000fU +#define BIST_DATA_TYPE_SHIFT 0 +#define BIST_DATA_TYPE(x) ((x) << BIST_DATA_TYPE_SHIFT) + +#define MC_BIST_STATUS_RDATA 0x7688 + +#define MA_EDRAM0_BAR 0x77c0 +#define MA_EDRAM1_BAR 0x77c4 +#define EDRAM_SIZE_MASK 0xfffU +#define EDRAM_SIZE_GET(x) ((x) & EDRAM_SIZE_MASK) + +#define MA_EXT_MEMORY_BAR 0x77c8 +#define EXT_MEM_SIZE_MASK 0x00000fffU +#define EXT_MEM_SIZE_SHIFT 0 +#define EXT_MEM_SIZE_GET(x) (((x) & EXT_MEM_SIZE_MASK) >> EXT_MEM_SIZE_SHIFT) + +#define MA_TARGET_MEM_ENABLE 0x77d8 +#define EXT_MEM1_ENABLE 0x00000010U +#define EXT_MEM_ENABLE 0x00000004U +#define EDRAM1_ENABLE 0x00000002U +#define EDRAM0_ENABLE 0x00000001U + +#define MA_INT_CAUSE 0x77e0 +#define MEM_PERR_INT_CAUSE 0x00000002U +#define MEM_WRAP_INT_CAUSE 0x00000001U + +#define MA_INT_WRAP_STATUS 0x77e4 +#define MEM_WRAP_ADDRESS_MASK 0xfffffff0U +#define MEM_WRAP_ADDRESS_SHIFT 4 +#define MEM_WRAP_ADDRESS_GET(x) (((x) & MEM_WRAP_ADDRESS_MASK) >> MEM_WRAP_ADDRESS_SHIFT) +#define MEM_WRAP_CLIENT_NUM_MASK 0x0000000fU +#define MEM_WRAP_CLIENT_NUM_SHIFT 0 +#define MEM_WRAP_CLIENT_NUM_GET(x) (((x) & MEM_WRAP_CLIENT_NUM_MASK) >> MEM_WRAP_CLIENT_NUM_SHIFT) +#define MA_PCIE_FW 0x30b8 +#define MA_PARITY_ERROR_STATUS 0x77f4 + +#define MA_EXT_MEMORY1_BAR 0x7808 +#define EDC_0_BASE_ADDR 0x7900 + +#define EDC_BIST_CMD 0x7904 +#define EDC_BIST_CMD_ADDR 0x7908 +#define EDC_BIST_CMD_LEN 0x790c +#define EDC_BIST_DATA_PATTERN 0x7910 +#define EDC_BIST_STATUS_RDATA 0x7928 +#define EDC_INT_CAUSE 0x7978 +#define ECC_UE_PAR 0x00000020U +#define ECC_CE_PAR 0x00000010U +#define PERR_PAR_CAUSE 0x00000008U + +#define EDC_ECC_STATUS 0x797c + +#define EDC_1_BASE_ADDR 0x7980 + +#define CIM_BOOT_CFG 0x7b00 +#define BOOTADDR_MASK 0xffffff00U +#define UPCRST 0x1U + +#define CIM_PF_MAILBOX_DATA 0x240 +#define CIM_PF_MAILBOX_CTRL 0x280 +#define MBMSGVALID 0x00000008U +#define MBINTREQ 0x00000004U +#define MBOWNER_MASK 0x00000003U +#define MBOWNER_SHIFT 0 +#define MBOWNER(x) ((x) << MBOWNER_SHIFT) +#define MBOWNER_GET(x) (((x) & MBOWNER_MASK) >> MBOWNER_SHIFT) + +#define CIM_PF_HOST_INT_ENABLE 0x288 +#define MBMSGRDYINTEN(x) ((x) << 19) + +#define CIM_PF_HOST_INT_CAUSE 0x28c +#define MBMSGRDYINT 0x00080000U + +#define CIM_HOST_INT_CAUSE 0x7b2c +#define TIEQOUTPARERRINT 0x00100000U +#define TIEQINPARERRINT 0x00080000U +#define MBHOSTPARERR 0x00040000U +#define MBUPPARERR 0x00020000U +#define IBQPARERR 0x0001f800U +#define IBQTP0PARERR 0x00010000U +#define IBQTP1PARERR 0x00008000U +#define IBQULPPARERR 0x00004000U +#define IBQSGELOPARERR 0x00002000U +#define IBQSGEHIPARERR 0x00001000U +#define IBQNCSIPARERR 0x00000800U +#define OBQPARERR 0x000007e0U +#define OBQULP0PARERR 0x00000400U +#define OBQULP1PARERR 0x00000200U +#define OBQULP2PARERR 0x00000100U +#define OBQULP3PARERR 0x00000080U +#define OBQSGEPARERR 0x00000040U +#define OBQNCSIPARERR 0x00000020U +#define PREFDROPINT 0x00000002U +#define UPACCNONZERO 0x00000001U + +#define CIM_HOST_UPACC_INT_CAUSE 0x7b34 +#define EEPROMWRINT 0x40000000U +#define TIMEOUTMAINT 0x20000000U +#define TIMEOUTINT 0x10000000U +#define RSPOVRLOOKUPINT 0x08000000U +#define REQOVRLOOKUPINT 0x04000000U +#define BLKWRPLINT 0x02000000U +#define BLKRDPLINT 0x01000000U +#define SGLWRPLINT 0x00800000U +#define SGLRDPLINT 0x00400000U +#define BLKWRCTLINT 0x00200000U +#define BLKRDCTLINT 0x00100000U +#define SGLWRCTLINT 0x00080000U +#define SGLRDCTLINT 0x00040000U +#define BLKWREEPROMINT 0x00020000U +#define BLKRDEEPROMINT 0x00010000U +#define SGLWREEPROMINT 0x00008000U +#define SGLRDEEPROMINT 0x00004000U +#define BLKWRFLASHINT 0x00002000U +#define BLKRDFLASHINT 0x00001000U +#define SGLWRFLASHINT 0x00000800U +#define SGLRDFLASHINT 0x00000400U +#define BLKWRBOOTINT 0x00000200U +#define BLKRDBOOTINT 0x00000100U +#define SGLWRBOOTINT 0x00000080U +#define SGLRDBOOTINT 0x00000040U +#define ILLWRBEINT 0x00000020U +#define ILLRDBEINT 0x00000010U +#define ILLRDINT 0x00000008U +#define ILLWRINT 0x00000004U +#define ILLTRANSINT 0x00000002U +#define RSVDSPACEINT 0x00000001U + +#define TP_OUT_CONFIG 0x7d04 +#define VLANEXTENABLE_MASK 0x0000f000U +#define VLANEXTENABLE_SHIFT 12 + +#define TP_GLOBAL_CONFIG 0x7d08 +#define FIVETUPLELOOKUP_SHIFT 17 +#define FIVETUPLELOOKUP_MASK 0x00060000U +#define FIVETUPLELOOKUP(x) ((x) << FIVETUPLELOOKUP_SHIFT) +#define FIVETUPLELOOKUP_GET(x) (((x) & FIVETUPLELOOKUP_MASK) >> \ + FIVETUPLELOOKUP_SHIFT) + +#define TP_PARA_REG2 0x7d68 +#define MAXRXDATA_MASK 0xffff0000U +#define MAXRXDATA_SHIFT 16 +#define MAXRXDATA_GET(x) (((x) & MAXRXDATA_MASK) >> MAXRXDATA_SHIFT) + +#define TP_TIMER_RESOLUTION 0x7d90 +#define TIMERRESOLUTION_MASK 0x00ff0000U +#define TIMERRESOLUTION_SHIFT 16 +#define TIMERRESOLUTION_GET(x) (((x) & TIMERRESOLUTION_MASK) >> TIMERRESOLUTION_SHIFT) +#define DELAYEDACKRESOLUTION_MASK 0x000000ffU +#define DELAYEDACKRESOLUTION_SHIFT 0 +#define DELAYEDACKRESOLUTION_GET(x) \ + (((x) & DELAYEDACKRESOLUTION_MASK) >> DELAYEDACKRESOLUTION_SHIFT) + +#define TP_SHIFT_CNT 0x7dc0 +#define SYNSHIFTMAX_SHIFT 24 +#define SYNSHIFTMAX_MASK 0xff000000U +#define SYNSHIFTMAX(x) ((x) << SYNSHIFTMAX_SHIFT) +#define SYNSHIFTMAX_GET(x) (((x) & SYNSHIFTMAX_MASK) >> \ + SYNSHIFTMAX_SHIFT) +#define RXTSHIFTMAXR1_SHIFT 20 +#define RXTSHIFTMAXR1_MASK 0x00f00000U +#define RXTSHIFTMAXR1(x) ((x) << RXTSHIFTMAXR1_SHIFT) +#define RXTSHIFTMAXR1_GET(x) (((x) & RXTSHIFTMAXR1_MASK) >> \ + RXTSHIFTMAXR1_SHIFT) +#define RXTSHIFTMAXR2_SHIFT 16 +#define RXTSHIFTMAXR2_MASK 0x000f0000U +#define RXTSHIFTMAXR2(x) ((x) << RXTSHIFTMAXR2_SHIFT) +#define RXTSHIFTMAXR2_GET(x) (((x) & RXTSHIFTMAXR2_MASK) >> \ + RXTSHIFTMAXR2_SHIFT) +#define PERSHIFTBACKOFFMAX_SHIFT 12 +#define PERSHIFTBACKOFFMAX_MASK 0x0000f000U +#define PERSHIFTBACKOFFMAX(x) ((x) << PERSHIFTBACKOFFMAX_SHIFT) +#define PERSHIFTBACKOFFMAX_GET(x) (((x) & PERSHIFTBACKOFFMAX_MASK) >> \ + PERSHIFTBACKOFFMAX_SHIFT) +#define PERSHIFTMAX_SHIFT 8 +#define PERSHIFTMAX_MASK 0x00000f00U +#define PERSHIFTMAX(x) ((x) << PERSHIFTMAX_SHIFT) +#define PERSHIFTMAX_GET(x) (((x) & PERSHIFTMAX_MASK) >> \ + PERSHIFTMAX_SHIFT) +#define KEEPALIVEMAXR1_SHIFT 4 +#define KEEPALIVEMAXR1_MASK 0x000000f0U +#define KEEPALIVEMAXR1(x) ((x) << KEEPALIVEMAXR1_SHIFT) +#define KEEPALIVEMAXR1_GET(x) (((x) & KEEPALIVEMAXR1_MASK) >> \ + KEEPALIVEMAXR1_SHIFT) +#define KEEPALIVEMAXR2_SHIFT 0 +#define KEEPALIVEMAXR2_MASK 0x0000000fU +#define KEEPALIVEMAXR2(x) ((x) << KEEPALIVEMAXR2_SHIFT) +#define KEEPALIVEMAXR2_GET(x) (((x) & KEEPALIVEMAXR2_MASK) >> \ + KEEPALIVEMAXR2_SHIFT) + +#define TP_CCTRL_TABLE 0x7ddc +#define TP_MTU_TABLE 0x7de4 +#define MTUINDEX_MASK 0xff000000U +#define MTUINDEX_SHIFT 24 +#define MTUINDEX(x) ((x) << MTUINDEX_SHIFT) +#define MTUWIDTH_MASK 0x000f0000U +#define MTUWIDTH_SHIFT 16 +#define MTUWIDTH(x) ((x) << MTUWIDTH_SHIFT) +#define MTUWIDTH_GET(x) (((x) & MTUWIDTH_MASK) >> MTUWIDTH_SHIFT) +#define MTUVALUE_MASK 0x00003fffU +#define MTUVALUE_SHIFT 0 +#define MTUVALUE(x) ((x) << MTUVALUE_SHIFT) +#define MTUVALUE_GET(x) (((x) & MTUVALUE_MASK) >> MTUVALUE_SHIFT) + +#define TP_RSS_LKP_TABLE 0x7dec +#define LKPTBLROWVLD 0x80000000U +#define LKPTBLQUEUE1_MASK 0x000ffc00U +#define LKPTBLQUEUE1_SHIFT 10 +#define LKPTBLQUEUE1(x) ((x) << LKPTBLQUEUE1_SHIFT) +#define LKPTBLQUEUE1_GET(x) (((x) & LKPTBLQUEUE1_MASK) >> LKPTBLQUEUE1_SHIFT) +#define LKPTBLQUEUE0_MASK 0x000003ffU +#define LKPTBLQUEUE0_SHIFT 0 +#define LKPTBLQUEUE0(x) ((x) << LKPTBLQUEUE0_SHIFT) +#define LKPTBLQUEUE0_GET(x) (((x) & LKPTBLQUEUE0_MASK) >> LKPTBLQUEUE0_SHIFT) + +#define TP_PIO_ADDR 0x7e40 +#define TP_PIO_DATA 0x7e44 +#define TP_MIB_INDEX 0x7e50 +#define TP_MIB_DATA 0x7e54 +#define TP_INT_CAUSE 0x7e74 +#define FLMTXFLSTEMPTY 0x40000000U + +#define TP_VLAN_PRI_MAP 0x140 +#define FRAGMENTATION_SHIFT 9 +#define FRAGMENTATION_MASK 0x00000200U +#define MPSHITTYPE_MASK 0x00000100U +#define MACMATCH_MASK 0x00000080U +#define ETHERTYPE_MASK 0x00000040U +#define PROTOCOL_MASK 0x00000020U +#define TOS_MASK 0x00000010U +#define VLAN_MASK 0x00000008U +#define VNIC_ID_MASK 0x00000004U +#define PORT_MASK 0x00000002U +#define FCOE_SHIFT 0 +#define FCOE_MASK 0x00000001U + +#define TP_INGRESS_CONFIG 0x141 +#define VNIC 0x00000800U +#define CSUM_HAS_PSEUDO_HDR 0x00000400U +#define RM_OVLAN 0x00000200U +#define LOOKUPEVERYPKT 0x00000100U + +#define TP_MIB_MAC_IN_ERR_0 0x0 +#define TP_MIB_TCP_OUT_RST 0xc +#define TP_MIB_TCP_IN_SEG_HI 0x10 +#define TP_MIB_TCP_IN_SEG_LO 0x11 +#define TP_MIB_TCP_OUT_SEG_HI 0x12 +#define TP_MIB_TCP_OUT_SEG_LO 0x13 +#define TP_MIB_TCP_RXT_SEG_HI 0x14 +#define TP_MIB_TCP_RXT_SEG_LO 0x15 +#define TP_MIB_TNL_CNG_DROP_0 0x18 +#define TP_MIB_TCP_V6IN_ERR_0 0x28 +#define TP_MIB_TCP_V6OUT_RST 0x2c +#define TP_MIB_OFD_ARP_DROP 0x36 +#define TP_MIB_TNL_DROP_0 0x44 +#define TP_MIB_OFD_VLN_DROP_0 0x58 + +#define ULP_TX_INT_CAUSE 0x8dcc +#define PBL_BOUND_ERR_CH3 0x80000000U +#define PBL_BOUND_ERR_CH2 0x40000000U +#define PBL_BOUND_ERR_CH1 0x20000000U +#define PBL_BOUND_ERR_CH0 0x10000000U + +#define PM_RX_INT_CAUSE 0x8fdc +#define ZERO_E_CMD_ERROR 0x00400000U +#define PMRX_FRAMING_ERROR 0x003ffff0U +#define OCSPI_PAR_ERROR 0x00000008U +#define DB_OPTIONS_PAR_ERROR 0x00000004U +#define IESPI_PAR_ERROR 0x00000002U +#define E_PCMD_PAR_ERROR 0x00000001U + +#define PM_TX_INT_CAUSE 0x8ffc +#define PCMD_LEN_OVFL0 0x80000000U +#define PCMD_LEN_OVFL1 0x40000000U +#define PCMD_LEN_OVFL2 0x20000000U +#define ZERO_C_CMD_ERROR 0x10000000U +#define PMTX_FRAMING_ERROR 0x0ffffff0U +#define OESPI_PAR_ERROR 0x00000008U +#define ICSPI_PAR_ERROR 0x00000002U +#define C_PCMD_PAR_ERROR 0x00000001U + +#define MPS_PORT_STAT_TX_PORT_BYTES_L 0x400 +#define MPS_PORT_STAT_TX_PORT_BYTES_H 0x404 +#define MPS_PORT_STAT_TX_PORT_FRAMES_L 0x408 +#define MPS_PORT_STAT_TX_PORT_FRAMES_H 0x40c +#define MPS_PORT_STAT_TX_PORT_BCAST_L 0x410 +#define MPS_PORT_STAT_TX_PORT_BCAST_H 0x414 +#define MPS_PORT_STAT_TX_PORT_MCAST_L 0x418 +#define MPS_PORT_STAT_TX_PORT_MCAST_H 0x41c +#define MPS_PORT_STAT_TX_PORT_UCAST_L 0x420 +#define MPS_PORT_STAT_TX_PORT_UCAST_H 0x424 +#define MPS_PORT_STAT_TX_PORT_ERROR_L 0x428 +#define MPS_PORT_STAT_TX_PORT_ERROR_H 0x42c +#define MPS_PORT_STAT_TX_PORT_64B_L 0x430 +#define MPS_PORT_STAT_TX_PORT_64B_H 0x434 +#define MPS_PORT_STAT_TX_PORT_65B_127B_L 0x438 +#define MPS_PORT_STAT_TX_PORT_65B_127B_H 0x43c +#define MPS_PORT_STAT_TX_PORT_128B_255B_L 0x440 +#define MPS_PORT_STAT_TX_PORT_128B_255B_H 0x444 +#define MPS_PORT_STAT_TX_PORT_256B_511B_L 0x448 +#define MPS_PORT_STAT_TX_PORT_256B_511B_H 0x44c +#define MPS_PORT_STAT_TX_PORT_512B_1023B_L 0x450 +#define MPS_PORT_STAT_TX_PORT_512B_1023B_H 0x454 +#define MPS_PORT_STAT_TX_PORT_1024B_1518B_L 0x458 +#define MPS_PORT_STAT_TX_PORT_1024B_1518B_H 0x45c +#define MPS_PORT_STAT_TX_PORT_1519B_MAX_L 0x460 +#define MPS_PORT_STAT_TX_PORT_1519B_MAX_H 0x464 +#define MPS_PORT_STAT_TX_PORT_DROP_L 0x468 +#define MPS_PORT_STAT_TX_PORT_DROP_H 0x46c +#define MPS_PORT_STAT_TX_PORT_PAUSE_L 0x470 +#define MPS_PORT_STAT_TX_PORT_PAUSE_H 0x474 +#define MPS_PORT_STAT_TX_PORT_PPP0_L 0x478 +#define MPS_PORT_STAT_TX_PORT_PPP0_H 0x47c +#define MPS_PORT_STAT_TX_PORT_PPP1_L 0x480 +#define MPS_PORT_STAT_TX_PORT_PPP1_H 0x484 +#define MPS_PORT_STAT_TX_PORT_PPP2_L 0x488 +#define MPS_PORT_STAT_TX_PORT_PPP2_H 0x48c +#define MPS_PORT_STAT_TX_PORT_PPP3_L 0x490 +#define MPS_PORT_STAT_TX_PORT_PPP3_H 0x494 +#define MPS_PORT_STAT_TX_PORT_PPP4_L 0x498 +#define MPS_PORT_STAT_TX_PORT_PPP4_H 0x49c +#define MPS_PORT_STAT_TX_PORT_PPP5_L 0x4a0 +#define MPS_PORT_STAT_TX_PORT_PPP5_H 0x4a4 +#define MPS_PORT_STAT_TX_PORT_PPP6_L 0x4a8 +#define MPS_PORT_STAT_TX_PORT_PPP6_H 0x4ac +#define MPS_PORT_STAT_TX_PORT_PPP7_L 0x4b0 +#define MPS_PORT_STAT_TX_PORT_PPP7_H 0x4b4 +#define MPS_PORT_STAT_LB_PORT_BYTES_L 0x4c0 +#define MPS_PORT_STAT_LB_PORT_BYTES_H 0x4c4 +#define MPS_PORT_STAT_LB_PORT_FRAMES_L 0x4c8 +#define MPS_PORT_STAT_LB_PORT_FRAMES_H 0x4cc +#define MPS_PORT_STAT_LB_PORT_BCAST_L 0x4d0 +#define MPS_PORT_STAT_LB_PORT_BCAST_H 0x4d4 +#define MPS_PORT_STAT_LB_PORT_MCAST_L 0x4d8 +#define MPS_PORT_STAT_LB_PORT_MCAST_H 0x4dc +#define MPS_PORT_STAT_LB_PORT_UCAST_L 0x4e0 +#define MPS_PORT_STAT_LB_PORT_UCAST_H 0x4e4 +#define MPS_PORT_STAT_LB_PORT_ERROR_L 0x4e8 +#define MPS_PORT_STAT_LB_PORT_ERROR_H 0x4ec +#define MPS_PORT_STAT_LB_PORT_64B_L 0x4f0 +#define MPS_PORT_STAT_LB_PORT_64B_H 0x4f4 +#define MPS_PORT_STAT_LB_PORT_65B_127B_L 0x4f8 +#define MPS_PORT_STAT_LB_PORT_65B_127B_H 0x4fc +#define MPS_PORT_STAT_LB_PORT_128B_255B_L 0x500 +#define MPS_PORT_STAT_LB_PORT_128B_255B_H 0x504 +#define MPS_PORT_STAT_LB_PORT_256B_511B_L 0x508 +#define MPS_PORT_STAT_LB_PORT_256B_511B_H 0x50c +#define MPS_PORT_STAT_LB_PORT_512B_1023B_L 0x510 +#define MPS_PORT_STAT_LB_PORT_512B_1023B_H 0x514 +#define MPS_PORT_STAT_LB_PORT_1024B_1518B_L 0x518 +#define MPS_PORT_STAT_LB_PORT_1024B_1518B_H 0x51c +#define MPS_PORT_STAT_LB_PORT_1519B_MAX_L 0x520 +#define MPS_PORT_STAT_LB_PORT_1519B_MAX_H 0x524 +#define MPS_PORT_STAT_LB_PORT_DROP_FRAMES 0x528 +#define MPS_PORT_STAT_RX_PORT_BYTES_L 0x540 +#define MPS_PORT_STAT_RX_PORT_BYTES_H 0x544 +#define MPS_PORT_STAT_RX_PORT_FRAMES_L 0x548 +#define MPS_PORT_STAT_RX_PORT_FRAMES_H 0x54c +#define MPS_PORT_STAT_RX_PORT_BCAST_L 0x550 +#define MPS_PORT_STAT_RX_PORT_BCAST_H 0x554 +#define MPS_PORT_STAT_RX_PORT_MCAST_L 0x558 +#define MPS_PORT_STAT_RX_PORT_MCAST_H 0x55c +#define MPS_PORT_STAT_RX_PORT_UCAST_L 0x560 +#define MPS_PORT_STAT_RX_PORT_UCAST_H 0x564 +#define MPS_PORT_STAT_RX_PORT_MTU_ERROR_L 0x568 +#define MPS_PORT_STAT_RX_PORT_MTU_ERROR_H 0x56c +#define MPS_PORT_STAT_RX_PORT_MTU_CRC_ERROR_L 0x570 +#define MPS_PORT_STAT_RX_PORT_MTU_CRC_ERROR_H 0x574 +#define MPS_PORT_STAT_RX_PORT_CRC_ERROR_L 0x578 +#define MPS_PORT_STAT_RX_PORT_CRC_ERROR_H 0x57c +#define MPS_PORT_STAT_RX_PORT_LEN_ERROR_L 0x580 +#define MPS_PORT_STAT_RX_PORT_LEN_ERROR_H 0x584 +#define MPS_PORT_STAT_RX_PORT_SYM_ERROR_L 0x588 +#define MPS_PORT_STAT_RX_PORT_SYM_ERROR_H 0x58c +#define MPS_PORT_STAT_RX_PORT_64B_L 0x590 +#define MPS_PORT_STAT_RX_PORT_64B_H 0x594 +#define MPS_PORT_STAT_RX_PORT_65B_127B_L 0x598 +#define MPS_PORT_STAT_RX_PORT_65B_127B_H 0x59c +#define MPS_PORT_STAT_RX_PORT_128B_255B_L 0x5a0 +#define MPS_PORT_STAT_RX_PORT_128B_255B_H 0x5a4 +#define MPS_PORT_STAT_RX_PORT_256B_511B_L 0x5a8 +#define MPS_PORT_STAT_RX_PORT_256B_511B_H 0x5ac +#define MPS_PORT_STAT_RX_PORT_512B_1023B_L 0x5b0 +#define MPS_PORT_STAT_RX_PORT_512B_1023B_H 0x5b4 +#define MPS_PORT_STAT_RX_PORT_1024B_1518B_L 0x5b8 +#define MPS_PORT_STAT_RX_PORT_1024B_1518B_H 0x5bc +#define MPS_PORT_STAT_RX_PORT_1519B_MAX_L 0x5c0 +#define MPS_PORT_STAT_RX_PORT_1519B_MAX_H 0x5c4 +#define MPS_PORT_STAT_RX_PORT_PAUSE_L 0x5c8 +#define MPS_PORT_STAT_RX_PORT_PAUSE_H 0x5cc +#define MPS_PORT_STAT_RX_PORT_PPP0_L 0x5d0 +#define MPS_PORT_STAT_RX_PORT_PPP0_H 0x5d4 +#define MPS_PORT_STAT_RX_PORT_PPP1_L 0x5d8 +#define MPS_PORT_STAT_RX_PORT_PPP1_H 0x5dc +#define MPS_PORT_STAT_RX_PORT_PPP2_L 0x5e0 +#define MPS_PORT_STAT_RX_PORT_PPP2_H 0x5e4 +#define MPS_PORT_STAT_RX_PORT_PPP3_L 0x5e8 +#define MPS_PORT_STAT_RX_PORT_PPP3_H 0x5ec +#define MPS_PORT_STAT_RX_PORT_PPP4_L 0x5f0 +#define MPS_PORT_STAT_RX_PORT_PPP4_H 0x5f4 +#define MPS_PORT_STAT_RX_PORT_PPP5_L 0x5f8 +#define MPS_PORT_STAT_RX_PORT_PPP5_H 0x5fc +#define MPS_PORT_STAT_RX_PORT_PPP6_L 0x600 +#define MPS_PORT_STAT_RX_PORT_PPP6_H 0x604 +#define MPS_PORT_STAT_RX_PORT_PPP7_L 0x608 +#define MPS_PORT_STAT_RX_PORT_PPP7_H 0x60c +#define MPS_PORT_STAT_RX_PORT_LESS_64B_L 0x610 +#define MPS_PORT_STAT_RX_PORT_LESS_64B_H 0x614 +#define MAC_PORT_CFG2 0x818 +#define MAC_PORT_MAGIC_MACID_LO 0x824 +#define MAC_PORT_MAGIC_MACID_HI 0x828 +#define MAC_PORT_EPIO_DATA0 0x8c0 +#define MAC_PORT_EPIO_DATA1 0x8c4 +#define MAC_PORT_EPIO_DATA2 0x8c8 +#define MAC_PORT_EPIO_DATA3 0x8cc +#define MAC_PORT_EPIO_OP 0x8d0 + +#define MPS_CMN_CTL 0x9000 +#define NUMPORTS_MASK 0x00000003U +#define NUMPORTS_SHIFT 0 +#define NUMPORTS_GET(x) (((x) & NUMPORTS_MASK) >> NUMPORTS_SHIFT) + +#define MPS_INT_CAUSE 0x9008 +#define STATINT 0x00000020U +#define TXINT 0x00000010U +#define RXINT 0x00000008U +#define TRCINT 0x00000004U +#define CLSINT 0x00000002U +#define PLINT 0x00000001U + +#define MPS_TX_INT_CAUSE 0x9408 +#define PORTERR 0x00010000U +#define FRMERR 0x00008000U +#define SECNTERR 0x00004000U +#define BUBBLE 0x00002000U +#define TXDESCFIFO 0x00001e00U +#define TXDATAFIFO 0x000001e0U +#define NCSIFIFO 0x00000010U +#define TPFIFO 0x0000000fU + +#define MPS_STAT_PERR_INT_CAUSE_SRAM 0x9614 +#define MPS_STAT_PERR_INT_CAUSE_TX_FIFO 0x9620 +#define MPS_STAT_PERR_INT_CAUSE_RX_FIFO 0x962c + +#define MPS_STAT_RX_BG_0_MAC_DROP_FRAME_L 0x9640 +#define MPS_STAT_RX_BG_0_MAC_DROP_FRAME_H 0x9644 +#define MPS_STAT_RX_BG_1_MAC_DROP_FRAME_L 0x9648 +#define MPS_STAT_RX_BG_1_MAC_DROP_FRAME_H 0x964c +#define MPS_STAT_RX_BG_2_MAC_DROP_FRAME_L 0x9650 +#define MPS_STAT_RX_BG_2_MAC_DROP_FRAME_H 0x9654 +#define MPS_STAT_RX_BG_3_MAC_DROP_FRAME_L 0x9658 +#define MPS_STAT_RX_BG_3_MAC_DROP_FRAME_H 0x965c +#define MPS_STAT_RX_BG_0_LB_DROP_FRAME_L 0x9660 +#define MPS_STAT_RX_BG_0_LB_DROP_FRAME_H 0x9664 +#define MPS_STAT_RX_BG_1_LB_DROP_FRAME_L 0x9668 +#define MPS_STAT_RX_BG_1_LB_DROP_FRAME_H 0x966c +#define MPS_STAT_RX_BG_2_LB_DROP_FRAME_L 0x9670 +#define MPS_STAT_RX_BG_2_LB_DROP_FRAME_H 0x9674 +#define MPS_STAT_RX_BG_3_LB_DROP_FRAME_L 0x9678 +#define MPS_STAT_RX_BG_3_LB_DROP_FRAME_H 0x967c +#define MPS_STAT_RX_BG_0_MAC_TRUNC_FRAME_L 0x9680 +#define MPS_STAT_RX_BG_0_MAC_TRUNC_FRAME_H 0x9684 +#define MPS_STAT_RX_BG_1_MAC_TRUNC_FRAME_L 0x9688 +#define MPS_STAT_RX_BG_1_MAC_TRUNC_FRAME_H 0x968c +#define MPS_STAT_RX_BG_2_MAC_TRUNC_FRAME_L 0x9690 +#define MPS_STAT_RX_BG_2_MAC_TRUNC_FRAME_H 0x9694 +#define MPS_STAT_RX_BG_3_MAC_TRUNC_FRAME_L 0x9698 +#define MPS_STAT_RX_BG_3_MAC_TRUNC_FRAME_H 0x969c +#define MPS_STAT_RX_BG_0_LB_TRUNC_FRAME_L 0x96a0 +#define MPS_STAT_RX_BG_0_LB_TRUNC_FRAME_H 0x96a4 +#define MPS_STAT_RX_BG_1_LB_TRUNC_FRAME_L 0x96a8 +#define MPS_STAT_RX_BG_1_LB_TRUNC_FRAME_H 0x96ac +#define MPS_STAT_RX_BG_2_LB_TRUNC_FRAME_L 0x96b0 +#define MPS_STAT_RX_BG_2_LB_TRUNC_FRAME_H 0x96b4 +#define MPS_STAT_RX_BG_3_LB_TRUNC_FRAME_L 0x96b8 +#define MPS_STAT_RX_BG_3_LB_TRUNC_FRAME_H 0x96bc +#define MPS_TRC_CFG 0x9800 +#define TRCFIFOEMPTY 0x00000010U +#define TRCIGNOREDROPINPUT 0x00000008U +#define TRCKEEPDUPLICATES 0x00000004U +#define TRCEN 0x00000002U +#define TRCMULTIFILTER 0x00000001U + +#define MPS_TRC_RSS_CONTROL 0x9808 +#define RSSCONTROL_MASK 0x00ff0000U +#define RSSCONTROL_SHIFT 16 +#define RSSCONTROL(x) ((x) << RSSCONTROL_SHIFT) +#define QUEUENUMBER_MASK 0x0000ffffU +#define QUEUENUMBER_SHIFT 0 +#define QUEUENUMBER(x) ((x) << QUEUENUMBER_SHIFT) + +#define MPS_TRC_FILTER_MATCH_CTL_A 0x9810 +#define TFINVERTMATCH 0x01000000U +#define TFPKTTOOLARGE 0x00800000U +#define TFEN 0x00400000U +#define TFPORT_MASK 0x003c0000U +#define TFPORT_SHIFT 18 +#define TFPORT(x) ((x) << TFPORT_SHIFT) +#define TFPORT_GET(x) (((x) & TFPORT_MASK) >> TFPORT_SHIFT) +#define TFDROP 0x00020000U +#define TFSOPEOPERR 0x00010000U +#define TFLENGTH_MASK 0x00001f00U +#define TFLENGTH_SHIFT 8 +#define TFLENGTH(x) ((x) << TFLENGTH_SHIFT) +#define TFLENGTH_GET(x) (((x) & TFLENGTH_MASK) >> TFLENGTH_SHIFT) +#define TFOFFSET_MASK 0x0000001fU +#define TFOFFSET_SHIFT 0 +#define TFOFFSET(x) ((x) << TFOFFSET_SHIFT) +#define TFOFFSET_GET(x) (((x) & TFOFFSET_MASK) >> TFOFFSET_SHIFT) + +#define MPS_TRC_FILTER_MATCH_CTL_B 0x9820 +#define TFMINPKTSIZE_MASK 0x01ff0000U +#define TFMINPKTSIZE_SHIFT 16 +#define TFMINPKTSIZE(x) ((x) << TFMINPKTSIZE_SHIFT) +#define TFMINPKTSIZE_GET(x) (((x) & TFMINPKTSIZE_MASK) >> TFMINPKTSIZE_SHIFT) +#define TFCAPTUREMAX_MASK 0x00003fffU +#define TFCAPTUREMAX_SHIFT 0 +#define TFCAPTUREMAX(x) ((x) << TFCAPTUREMAX_SHIFT) +#define TFCAPTUREMAX_GET(x) (((x) & TFCAPTUREMAX_MASK) >> TFCAPTUREMAX_SHIFT) + +#define MPS_TRC_INT_CAUSE 0x985c +#define MISCPERR 0x00000100U +#define PKTFIFO 0x000000f0U +#define FILTMEM 0x0000000fU + +#define MPS_TRC_FILTER0_MATCH 0x9c00 +#define MPS_TRC_FILTER0_DONT_CARE 0x9c80 +#define MPS_TRC_FILTER1_MATCH 0x9d00 +#define MPS_CLS_INT_CAUSE 0xd028 +#define PLERRENB 0x00000008U +#define HASHSRAM 0x00000004U +#define MATCHTCAM 0x00000002U +#define MATCHSRAM 0x00000001U + +#define MPS_RX_PERR_INT_CAUSE 0x11074 + +#define CPL_INTR_CAUSE 0x19054 +#define CIM_OP_MAP_PERR 0x00000020U +#define CIM_OVFL_ERROR 0x00000010U +#define TP_FRAMING_ERROR 0x00000008U +#define SGE_FRAMING_ERROR 0x00000004U +#define CIM_FRAMING_ERROR 0x00000002U +#define ZERO_SWITCH_ERROR 0x00000001U + +#define SMB_INT_CAUSE 0x19090 +#define MSTTXFIFOPARINT 0x00200000U +#define MSTRXFIFOPARINT 0x00100000U +#define SLVFIFOPARINT 0x00080000U + +#define ULP_RX_INT_CAUSE 0x19158 +#define ULP_RX_ISCSI_TAGMASK 0x19164 +#define ULP_RX_ISCSI_PSZ 0x19168 +#define HPZ3_MASK 0x0f000000U +#define HPZ3_SHIFT 24 +#define HPZ3(x) ((x) << HPZ3_SHIFT) +#define HPZ2_MASK 0x000f0000U +#define HPZ2_SHIFT 16 +#define HPZ2(x) ((x) << HPZ2_SHIFT) +#define HPZ1_MASK 0x00000f00U +#define HPZ1_SHIFT 8 +#define HPZ1(x) ((x) << HPZ1_SHIFT) +#define HPZ0_MASK 0x0000000fU +#define HPZ0_SHIFT 0 +#define HPZ0(x) ((x) << HPZ0_SHIFT) + +#define ULP_RX_TDDP_PSZ 0x19178 + +#define SF_DATA 0x193f8 +#define SF_OP 0x193fc +#define SF_BUSY 0x80000000U +#define SF_LOCK 0x00000010U +#define SF_CONT 0x00000008U +#define BYTECNT_MASK 0x00000006U +#define BYTECNT_SHIFT 1 +#define BYTECNT(x) ((x) << BYTECNT_SHIFT) +#define OP_WR 0x00000001U + +#define PL_PF_INT_CAUSE 0x3c0 +#define PFSW 0x00000008U +#define PFSGE 0x00000004U +#define PFCIM 0x00000002U +#define PFMPS 0x00000001U + +#define PL_PF_INT_ENABLE 0x3c4 +#define PL_PF_CTL 0x3c8 +#define SWINT 0x00000001U + +#define PL_WHOAMI 0x19400 +#define SOURCEPF_MASK 0x00000700U +#define SOURCEPF_SHIFT 8 +#define SOURCEPF(x) ((x) << SOURCEPF_SHIFT) +#define SOURCEPF_GET(x) (((x) & SOURCEPF_MASK) >> SOURCEPF_SHIFT) +#define ISVF 0x00000080U +#define VFID_MASK 0x0000007fU +#define VFID_SHIFT 0 +#define VFID(x) ((x) << VFID_SHIFT) +#define VFID_GET(x) (((x) & VFID_MASK) >> VFID_SHIFT) + +#define PL_INT_CAUSE 0x1940c +#define ULP_TX 0x08000000U +#define SGE 0x04000000U +#define HMA 0x02000000U +#define CPL_SWITCH 0x01000000U +#define ULP_RX 0x00800000U +#define PM_RX 0x00400000U +#define PM_TX 0x00200000U +#define MA 0x00100000U +#define TP 0x00080000U +#define LE 0x00040000U +#define EDC1 0x00020000U +#define EDC0 0x00010000U +#define MC 0x00008000U +#define PCIE 0x00004000U +#define PMU 0x00002000U +#define XGMAC_KR1 0x00001000U +#define XGMAC_KR0 0x00000800U +#define XGMAC1 0x00000400U +#define XGMAC0 0x00000200U +#define SMB 0x00000100U +#define SF 0x00000080U +#define PL 0x00000040U +#define NCSI 0x00000020U +#define MPS 0x00000010U +#define MI 0x00000008U +#define DBG 0x00000004U +#define I2CM 0x00000002U +#define CIM 0x00000001U + +#define PL_INT_ENABLE 0x19410 +#define PL_INT_MAP0 0x19414 +#define PL_RST 0x19428 +#define PIORST 0x00000002U +#define PIORSTMODE 0x00000001U + +#define PL_PL_INT_CAUSE 0x19430 +#define FATALPERR 0x00000010U +#define PERRVFID 0x00000001U + +#define PL_REV 0x1943c + +#define S_REV 0 +#define M_REV 0xfU +#define V_REV(x) ((x) << S_REV) +#define G_REV(x) (((x) >> S_REV) & M_REV) + +#define LE_DB_CONFIG 0x19c04 +#define HASHEN 0x00100000U + +#define LE_DB_SERVER_INDEX 0x19c18 +#define LE_DB_ACT_CNT_IPV4 0x19c20 +#define LE_DB_ACT_CNT_IPV6 0x19c24 + +#define LE_DB_INT_CAUSE 0x19c3c +#define REQQPARERR 0x00010000U +#define UNKNOWNCMD 0x00008000U +#define PARITYERR 0x00000040U +#define LIPMISS 0x00000020U +#define LIP0 0x00000010U + +#define LE_DB_TID_HASHBASE 0x19df8 + +#define NCSI_INT_CAUSE 0x1a0d8 +#define CIM_DM_PRTY_ERR 0x00000100U +#define MPS_DM_PRTY_ERR 0x00000080U +#define TXFIFO_PRTY_ERR 0x00000002U +#define RXFIFO_PRTY_ERR 0x00000001U + +#define XGMAC_PORT_CFG2 0x1018 +#define PATEN 0x00040000U +#define MAGICEN 0x00020000U + +#define XGMAC_PORT_MAGIC_MACID_LO 0x1024 +#define XGMAC_PORT_MAGIC_MACID_HI 0x1028 + +#define XGMAC_PORT_EPIO_DATA0 0x10c0 +#define XGMAC_PORT_EPIO_DATA1 0x10c4 +#define XGMAC_PORT_EPIO_DATA2 0x10c8 +#define XGMAC_PORT_EPIO_DATA3 0x10cc +#define XGMAC_PORT_EPIO_OP 0x10d0 +#define EPIOWR 0x00000100U +#define ADDRESS_MASK 0x000000ffU +#define ADDRESS_SHIFT 0 +#define ADDRESS(x) ((x) << ADDRESS_SHIFT) + +#define MAC_PORT_INT_CAUSE 0x8dc +#define XGMAC_PORT_INT_CAUSE 0x10dc + +#define A_TP_TX_MOD_QUEUE_REQ_MAP 0x7e28 + +#define A_TP_TX_MOD_CHANNEL_WEIGHT 0x7e34 + +#define S_TX_MOD_QUEUE_REQ_MAP 0 +#define M_TX_MOD_QUEUE_REQ_MAP 0xffffU +#define V_TX_MOD_QUEUE_REQ_MAP(x) ((x) << S_TX_MOD_QUEUE_REQ_MAP) + +#define A_TP_TX_MOD_QUEUE_WEIGHT0 0x7e30 + +#define S_TX_MODQ_WEIGHT3 24 +#define M_TX_MODQ_WEIGHT3 0xffU +#define V_TX_MODQ_WEIGHT3(x) ((x) << S_TX_MODQ_WEIGHT3) + +#define S_TX_MODQ_WEIGHT2 16 +#define M_TX_MODQ_WEIGHT2 0xffU +#define V_TX_MODQ_WEIGHT2(x) ((x) << S_TX_MODQ_WEIGHT2) + +#define S_TX_MODQ_WEIGHT1 8 +#define M_TX_MODQ_WEIGHT1 0xffU +#define V_TX_MODQ_WEIGHT1(x) ((x) << S_TX_MODQ_WEIGHT1) + +#define S_TX_MODQ_WEIGHT0 0 +#define M_TX_MODQ_WEIGHT0 0xffU +#define V_TX_MODQ_WEIGHT0(x) ((x) << S_TX_MODQ_WEIGHT0) + +#define A_TP_TX_SCHED_HDR 0x23 + +#define A_TP_TX_SCHED_FIFO 0x24 + +#define A_TP_TX_SCHED_PCMD 0x25 + +#define S_VNIC 11 +#define V_VNIC(x) ((x) << S_VNIC) +#define F_VNIC V_VNIC(1U) + +#define S_FRAGMENTATION 9 +#define V_FRAGMENTATION(x) ((x) << S_FRAGMENTATION) +#define F_FRAGMENTATION V_FRAGMENTATION(1U) + +#define S_MPSHITTYPE 8 +#define V_MPSHITTYPE(x) ((x) << S_MPSHITTYPE) +#define F_MPSHITTYPE V_MPSHITTYPE(1U) + +#define S_MACMATCH 7 +#define V_MACMATCH(x) ((x) << S_MACMATCH) +#define F_MACMATCH V_MACMATCH(1U) + +#define S_ETHERTYPE 6 +#define V_ETHERTYPE(x) ((x) << S_ETHERTYPE) +#define F_ETHERTYPE V_ETHERTYPE(1U) + +#define S_PROTOCOL 5 +#define V_PROTOCOL(x) ((x) << S_PROTOCOL) +#define F_PROTOCOL V_PROTOCOL(1U) + +#define S_TOS 4 +#define V_TOS(x) ((x) << S_TOS) +#define F_TOS V_TOS(1U) + +#define S_VLAN 3 +#define V_VLAN(x) ((x) << S_VLAN) +#define F_VLAN V_VLAN(1U) + +#define S_VNIC_ID 2 +#define V_VNIC_ID(x) ((x) << S_VNIC_ID) +#define F_VNIC_ID V_VNIC_ID(1U) + +#define S_PORT 1 +#define V_PORT(x) ((x) << S_PORT) +#define F_PORT V_PORT(1U) + +#define S_FCOE 0 +#define V_FCOE(x) ((x) << S_FCOE) +#define F_FCOE V_FCOE(1U) + +#define NUM_MPS_CLS_SRAM_L_INSTANCES 336 +#define NUM_MPS_T5_CLS_SRAM_L_INSTANCES 512 + +#define T5_PORT0_BASE 0x30000 +#define T5_PORT_STRIDE 0x4000 +#define T5_PORT_BASE(idx) (T5_PORT0_BASE + (idx) * T5_PORT_STRIDE) +#define T5_PORT_REG(idx, reg) (T5_PORT_BASE(idx) + (reg)) + +#define MC_0_BASE_ADDR 0x40000 +#define MC_1_BASE_ADDR 0x48000 +#define MC_STRIDE (MC_1_BASE_ADDR - MC_0_BASE_ADDR) +#define MC_REG(reg, idx) (reg + MC_STRIDE * idx) + +#define MC_P_BIST_CMD 0x41400 +#define MC_P_BIST_CMD_ADDR 0x41404 +#define MC_P_BIST_CMD_LEN 0x41408 +#define MC_P_BIST_DATA_PATTERN 0x4140c +#define MC_P_BIST_STATUS_RDATA 0x41488 +#define EDC_T50_BASE_ADDR 0x50000 +#define EDC_H_BIST_CMD 0x50004 +#define EDC_H_BIST_CMD_ADDR 0x50008 +#define EDC_H_BIST_CMD_LEN 0x5000c +#define EDC_H_BIST_DATA_PATTERN 0x50010 +#define EDC_H_BIST_STATUS_RDATA 0x50028 + +#define EDC_T51_BASE_ADDR 0x50800 +#define EDC_STRIDE_T5 (EDC_T51_BASE_ADDR - EDC_T50_BASE_ADDR) +#define EDC_REG_T5(reg, idx) (reg + EDC_STRIDE_T5 * idx) + +#define A_PL_VF_REV 0x4 +#define A_PL_VF_WHOAMI 0x0 +#define A_PL_VF_REVISION 0x8 + +#define S_CHIPID 4 +#define M_CHIPID 0xfU +#define V_CHIPID(x) ((x) << S_CHIPID) +#define G_CHIPID(x) (((x) >> S_CHIPID) & M_CHIPID) + +/* TP_VLAN_PRI_MAP controls which subset of fields will be present in the + * Compressed Filter Tuple for LE filters. Each bit set in TP_VLAN_PRI_MAP + * selects for a particular field being present. These fields, when present + * in the Compressed Filter Tuple, have the following widths in bits. + */ +#define W_FT_FCOE 1 +#define W_FT_PORT 3 +#define W_FT_VNIC_ID 17 +#define W_FT_VLAN 17 +#define W_FT_TOS 8 +#define W_FT_PROTOCOL 8 +#define W_FT_ETHERTYPE 16 +#define W_FT_MACMATCH 9 +#define W_FT_MPSHITTYPE 3 +#define W_FT_FRAGMENTATION 1 + +/* Some of the Compressed Filter Tuple fields have internal structure. These + * bit shifts/masks describe those structures. All shifts are relative to the + * base position of the fields within the Compressed Filter Tuple + */ +#define S_FT_VLAN_VLD 16 +#define V_FT_VLAN_VLD(x) ((x) << S_FT_VLAN_VLD) +#define F_FT_VLAN_VLD V_FT_VLAN_VLD(1U) + +#define S_FT_VNID_ID_VF 0 +#define V_FT_VNID_ID_VF(x) ((x) << S_FT_VNID_ID_VF) + +#define S_FT_VNID_ID_PF 7 +#define V_FT_VNID_ID_PF(x) ((x) << S_FT_VNID_ID_PF) + +#define S_FT_VNID_ID_VLD 16 +#define V_FT_VNID_ID_VLD(x) ((x) << S_FT_VNID_ID_VLD) + +#endif /* __T4_REGS_H */ diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h new file mode 100644 index 00000000000..9cc973fbcf2 --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h @@ -0,0 +1,2208 @@ +/* + * This file is part of the Chelsio T4 Ethernet driver for Linux. + * + * Copyright (c) 2009-2010 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _T4FW_INTERFACE_H_ +#define _T4FW_INTERFACE_H_ + +enum fw_retval { + FW_SUCCESS = 0, /* completed sucessfully */ + FW_EPERM = 1, /* operation not permitted */ + FW_ENOENT = 2, /* no such file or directory */ + FW_EIO = 5, /* input/output error; hw bad */ + FW_ENOEXEC = 8, /* exec format error; inv microcode */ + FW_EAGAIN = 11, /* try again */ + FW_ENOMEM = 12, /* out of memory */ + FW_EFAULT = 14, /* bad address; fw bad */ + FW_EBUSY = 16, /* resource busy */ + FW_EEXIST = 17, /* file exists */ + FW_EINVAL = 22, /* invalid argument */ + FW_ENOSPC = 28, /* no space left on device */ + FW_ENOSYS = 38, /* functionality not implemented */ + FW_EPROTO = 71, /* protocol error */ + FW_EADDRINUSE = 98, /* address already in use */ + FW_EADDRNOTAVAIL = 99, /* cannot assigned requested address */ + FW_ENETDOWN = 100, /* network is down */ + FW_ENETUNREACH = 101, /* network is unreachable */ + FW_ENOBUFS = 105, /* no buffer space available */ + FW_ETIMEDOUT = 110, /* timeout */ + FW_EINPROGRESS = 115, /* fw internal */ + FW_SCSI_ABORT_REQUESTED = 128, /* */ + FW_SCSI_ABORT_TIMEDOUT = 129, /* */ + FW_SCSI_ABORTED = 130, /* */ + FW_SCSI_CLOSE_REQUESTED = 131, /* */ + FW_ERR_LINK_DOWN = 132, /* */ + FW_RDEV_NOT_READY = 133, /* */ + FW_ERR_RDEV_LOST = 134, /* */ + FW_ERR_RDEV_LOGO = 135, /* */ + FW_FCOE_NO_XCHG = 136, /* */ + FW_SCSI_RSP_ERR = 137, /* */ + FW_ERR_RDEV_IMPL_LOGO = 138, /* */ + FW_SCSI_UNDER_FLOW_ERR = 139, /* */ + FW_SCSI_OVER_FLOW_ERR = 140, /* */ + FW_SCSI_DDP_ERR = 141, /* DDP error*/ + FW_SCSI_TASK_ERR = 142, /* No SCSI tasks available */ +}; + +#define FW_T4VF_SGE_BASE_ADDR 0x0000 +#define FW_T4VF_MPS_BASE_ADDR 0x0100 +#define FW_T4VF_PL_BASE_ADDR 0x0200 +#define FW_T4VF_MBDATA_BASE_ADDR 0x0240 +#define FW_T4VF_CIM_BASE_ADDR 0x0300 + +enum fw_wr_opcodes { + FW_FILTER_WR = 0x02, + FW_ULPTX_WR = 0x04, + FW_TP_WR = 0x05, + FW_ETH_TX_PKT_WR = 0x08, + FW_OFLD_CONNECTION_WR = 0x2f, + FW_FLOWC_WR = 0x0a, + FW_OFLD_TX_DATA_WR = 0x0b, + FW_CMD_WR = 0x10, + FW_ETH_TX_PKT_VM_WR = 0x11, + FW_RI_RES_WR = 0x0c, + FW_RI_INIT_WR = 0x0d, + FW_RI_RDMA_WRITE_WR = 0x14, + FW_RI_SEND_WR = 0x15, + FW_RI_RDMA_READ_WR = 0x16, + FW_RI_RECV_WR = 0x17, + FW_RI_BIND_MW_WR = 0x18, + FW_RI_FR_NSMR_WR = 0x19, + FW_RI_INV_LSTAG_WR = 0x1a, + FW_LASTC2E_WR = 0x40 +}; + +struct fw_wr_hdr { + __be32 hi; + __be32 lo; +}; + +#define FW_WR_OP(x) ((x) << 24) +#define FW_WR_OP_GET(x) (((x) >> 24) & 0xff) +#define FW_WR_ATOMIC(x) ((x) << 23) +#define FW_WR_FLUSH(x) ((x) << 22) +#define FW_WR_COMPL(x) ((x) << 21) +#define FW_WR_IMMDLEN_MASK 0xff +#define FW_WR_IMMDLEN(x) ((x) << 0) + +#define FW_WR_EQUIQ (1U << 31) +#define FW_WR_EQUEQ (1U << 30) +#define FW_WR_FLOWID(x) ((x) << 8) +#define FW_WR_LEN16(x) ((x) << 0) + +#define HW_TPL_FR_MT_PR_IV_P_FC 0X32B +#define HW_TPL_FR_MT_PR_OV_P_FC 0X327 + +/* filter wr reply code in cookie in CPL_SET_TCB_RPL */ +enum fw_filter_wr_cookie { + FW_FILTER_WR_SUCCESS, + FW_FILTER_WR_FLT_ADDED, + FW_FILTER_WR_FLT_DELETED, + FW_FILTER_WR_SMT_TBL_FULL, + FW_FILTER_WR_EINVAL, +}; + +struct fw_filter_wr { + __be32 op_pkd; + __be32 len16_pkd; + __be64 r3; + __be32 tid_to_iq; + __be32 del_filter_to_l2tix; + __be16 ethtype; + __be16 ethtypem; + __u8 frag_to_ovlan_vldm; + __u8 smac_sel; + __be16 rx_chan_rx_rpl_iq; + __be32 maci_to_matchtypem; + __u8 ptcl; + __u8 ptclm; + __u8 ttyp; + __u8 ttypm; + __be16 ivlan; + __be16 ivlanm; + __be16 ovlan; + __be16 ovlanm; + __u8 lip[16]; + __u8 lipm[16]; + __u8 fip[16]; + __u8 fipm[16]; + __be16 lp; + __be16 lpm; + __be16 fp; + __be16 fpm; + __be16 r7; + __u8 sma[6]; +}; + +#define S_FW_FILTER_WR_TID 12 +#define M_FW_FILTER_WR_TID 0xfffff +#define V_FW_FILTER_WR_TID(x) ((x) << S_FW_FILTER_WR_TID) +#define G_FW_FILTER_WR_TID(x) \ + (((x) >> S_FW_FILTER_WR_TID) & M_FW_FILTER_WR_TID) + +#define S_FW_FILTER_WR_RQTYPE 11 +#define M_FW_FILTER_WR_RQTYPE 0x1 +#define V_FW_FILTER_WR_RQTYPE(x) ((x) << S_FW_FILTER_WR_RQTYPE) +#define G_FW_FILTER_WR_RQTYPE(x) \ + (((x) >> S_FW_FILTER_WR_RQTYPE) & M_FW_FILTER_WR_RQTYPE) +#define F_FW_FILTER_WR_RQTYPE V_FW_FILTER_WR_RQTYPE(1U) + +#define S_FW_FILTER_WR_NOREPLY 10 +#define M_FW_FILTER_WR_NOREPLY 0x1 +#define V_FW_FILTER_WR_NOREPLY(x) ((x) << S_FW_FILTER_WR_NOREPLY) +#define G_FW_FILTER_WR_NOREPLY(x) \ + (((x) >> S_FW_FILTER_WR_NOREPLY) & M_FW_FILTER_WR_NOREPLY) +#define F_FW_FILTER_WR_NOREPLY V_FW_FILTER_WR_NOREPLY(1U) + +#define S_FW_FILTER_WR_IQ 0 +#define M_FW_FILTER_WR_IQ 0x3ff +#define V_FW_FILTER_WR_IQ(x) ((x) << S_FW_FILTER_WR_IQ) +#define G_FW_FILTER_WR_IQ(x) \ + (((x) >> S_FW_FILTER_WR_IQ) & M_FW_FILTER_WR_IQ) + +#define S_FW_FILTER_WR_DEL_FILTER 31 +#define M_FW_FILTER_WR_DEL_FILTER 0x1 +#define V_FW_FILTER_WR_DEL_FILTER(x) ((x) << S_FW_FILTER_WR_DEL_FILTER) +#define G_FW_FILTER_WR_DEL_FILTER(x) \ + (((x) >> S_FW_FILTER_WR_DEL_FILTER) & M_FW_FILTER_WR_DEL_FILTER) +#define F_FW_FILTER_WR_DEL_FILTER V_FW_FILTER_WR_DEL_FILTER(1U) + +#define S_FW_FILTER_WR_RPTTID 25 +#define M_FW_FILTER_WR_RPTTID 0x1 +#define V_FW_FILTER_WR_RPTTID(x) ((x) << S_FW_FILTER_WR_RPTTID) +#define G_FW_FILTER_WR_RPTTID(x) \ + (((x) >> S_FW_FILTER_WR_RPTTID) & M_FW_FILTER_WR_RPTTID) +#define F_FW_FILTER_WR_RPTTID V_FW_FILTER_WR_RPTTID(1U) + +#define S_FW_FILTER_WR_DROP 24 +#define M_FW_FILTER_WR_DROP 0x1 +#define V_FW_FILTER_WR_DROP(x) ((x) << S_FW_FILTER_WR_DROP) +#define G_FW_FILTER_WR_DROP(x) \ + (((x) >> S_FW_FILTER_WR_DROP) & M_FW_FILTER_WR_DROP) +#define F_FW_FILTER_WR_DROP V_FW_FILTER_WR_DROP(1U) + +#define S_FW_FILTER_WR_DIRSTEER 23 +#define M_FW_FILTER_WR_DIRSTEER 0x1 +#define V_FW_FILTER_WR_DIRSTEER(x) ((x) << S_FW_FILTER_WR_DIRSTEER) +#define G_FW_FILTER_WR_DIRSTEER(x) \ + (((x) >> S_FW_FILTER_WR_DIRSTEER) & M_FW_FILTER_WR_DIRSTEER) +#define F_FW_FILTER_WR_DIRSTEER V_FW_FILTER_WR_DIRSTEER(1U) + +#define S_FW_FILTER_WR_MASKHASH 22 +#define M_FW_FILTER_WR_MASKHASH 0x1 +#define V_FW_FILTER_WR_MASKHASH(x) ((x) << S_FW_FILTER_WR_MASKHASH) +#define G_FW_FILTER_WR_MASKHASH(x) \ + (((x) >> S_FW_FILTER_WR_MASKHASH) & M_FW_FILTER_WR_MASKHASH) +#define F_FW_FILTER_WR_MASKHASH V_FW_FILTER_WR_MASKHASH(1U) + +#define S_FW_FILTER_WR_DIRSTEERHASH 21 +#define M_FW_FILTER_WR_DIRSTEERHASH 0x1 +#define V_FW_FILTER_WR_DIRSTEERHASH(x) ((x) << S_FW_FILTER_WR_DIRSTEERHASH) +#define G_FW_FILTER_WR_DIRSTEERHASH(x) \ + (((x) >> S_FW_FILTER_WR_DIRSTEERHASH) & M_FW_FILTER_WR_DIRSTEERHASH) +#define F_FW_FILTER_WR_DIRSTEERHASH V_FW_FILTER_WR_DIRSTEERHASH(1U) + +#define S_FW_FILTER_WR_LPBK 20 +#define M_FW_FILTER_WR_LPBK 0x1 +#define V_FW_FILTER_WR_LPBK(x) ((x) << S_FW_FILTER_WR_LPBK) +#define G_FW_FILTER_WR_LPBK(x) \ + (((x) >> S_FW_FILTER_WR_LPBK) & M_FW_FILTER_WR_LPBK) +#define F_FW_FILTER_WR_LPBK V_FW_FILTER_WR_LPBK(1U) + +#define S_FW_FILTER_WR_DMAC 19 +#define M_FW_FILTER_WR_DMAC 0x1 +#define V_FW_FILTER_WR_DMAC(x) ((x) << S_FW_FILTER_WR_DMAC) +#define G_FW_FILTER_WR_DMAC(x) \ + (((x) >> S_FW_FILTER_WR_DMAC) & M_FW_FILTER_WR_DMAC) +#define F_FW_FILTER_WR_DMAC V_FW_FILTER_WR_DMAC(1U) + +#define S_FW_FILTER_WR_SMAC 18 +#define M_FW_FILTER_WR_SMAC 0x1 +#define V_FW_FILTER_WR_SMAC(x) ((x) << S_FW_FILTER_WR_SMAC) +#define G_FW_FILTER_WR_SMAC(x) \ + (((x) >> S_FW_FILTER_WR_SMAC) & M_FW_FILTER_WR_SMAC) +#define F_FW_FILTER_WR_SMAC V_FW_FILTER_WR_SMAC(1U) + +#define S_FW_FILTER_WR_INSVLAN 17 +#define M_FW_FILTER_WR_INSVLAN 0x1 +#define V_FW_FILTER_WR_INSVLAN(x) ((x) << S_FW_FILTER_WR_INSVLAN) +#define G_FW_FILTER_WR_INSVLAN(x) \ + (((x) >> S_FW_FILTER_WR_INSVLAN) & M_FW_FILTER_WR_INSVLAN) +#define F_FW_FILTER_WR_INSVLAN V_FW_FILTER_WR_INSVLAN(1U) + +#define S_FW_FILTER_WR_RMVLAN 16 +#define M_FW_FILTER_WR_RMVLAN 0x1 +#define V_FW_FILTER_WR_RMVLAN(x) ((x) << S_FW_FILTER_WR_RMVLAN) +#define G_FW_FILTER_WR_RMVLAN(x) \ + (((x) >> S_FW_FILTER_WR_RMVLAN) & M_FW_FILTER_WR_RMVLAN) +#define F_FW_FILTER_WR_RMVLAN V_FW_FILTER_WR_RMVLAN(1U) + +#define S_FW_FILTER_WR_HITCNTS 15 +#define M_FW_FILTER_WR_HITCNTS 0x1 +#define V_FW_FILTER_WR_HITCNTS(x) ((x) << S_FW_FILTER_WR_HITCNTS) +#define G_FW_FILTER_WR_HITCNTS(x) \ + (((x) >> S_FW_FILTER_WR_HITCNTS) & M_FW_FILTER_WR_HITCNTS) +#define F_FW_FILTER_WR_HITCNTS V_FW_FILTER_WR_HITCNTS(1U) + +#define S_FW_FILTER_WR_TXCHAN 13 +#define M_FW_FILTER_WR_TXCHAN 0x3 +#define V_FW_FILTER_WR_TXCHAN(x) ((x) << S_FW_FILTER_WR_TXCHAN) +#define G_FW_FILTER_WR_TXCHAN(x) \ + (((x) >> S_FW_FILTER_WR_TXCHAN) & M_FW_FILTER_WR_TXCHAN) + +#define S_FW_FILTER_WR_PRIO 12 +#define M_FW_FILTER_WR_PRIO 0x1 +#define V_FW_FILTER_WR_PRIO(x) ((x) << S_FW_FILTER_WR_PRIO) +#define G_FW_FILTER_WR_PRIO(x) \ + (((x) >> S_FW_FILTER_WR_PRIO) & M_FW_FILTER_WR_PRIO) +#define F_FW_FILTER_WR_PRIO V_FW_FILTER_WR_PRIO(1U) + +#define S_FW_FILTER_WR_L2TIX 0 +#define M_FW_FILTER_WR_L2TIX 0xfff +#define V_FW_FILTER_WR_L2TIX(x) ((x) << S_FW_FILTER_WR_L2TIX) +#define G_FW_FILTER_WR_L2TIX(x) \ + (((x) >> S_FW_FILTER_WR_L2TIX) & M_FW_FILTER_WR_L2TIX) + +#define S_FW_FILTER_WR_FRAG 7 +#define M_FW_FILTER_WR_FRAG 0x1 +#define V_FW_FILTER_WR_FRAG(x) ((x) << S_FW_FILTER_WR_FRAG) +#define G_FW_FILTER_WR_FRAG(x) \ + (((x) >> S_FW_FILTER_WR_FRAG) & M_FW_FILTER_WR_FRAG) +#define F_FW_FILTER_WR_FRAG V_FW_FILTER_WR_FRAG(1U) + +#define S_FW_FILTER_WR_FRAGM 6 +#define M_FW_FILTER_WR_FRAGM 0x1 +#define V_FW_FILTER_WR_FRAGM(x) ((x) << S_FW_FILTER_WR_FRAGM) +#define G_FW_FILTER_WR_FRAGM(x) \ + (((x) >> S_FW_FILTER_WR_FRAGM) & M_FW_FILTER_WR_FRAGM) +#define F_FW_FILTER_WR_FRAGM V_FW_FILTER_WR_FRAGM(1U) + +#define S_FW_FILTER_WR_IVLAN_VLD 5 +#define M_FW_FILTER_WR_IVLAN_VLD 0x1 +#define V_FW_FILTER_WR_IVLAN_VLD(x) ((x) << S_FW_FILTER_WR_IVLAN_VLD) +#define G_FW_FILTER_WR_IVLAN_VLD(x) \ + (((x) >> S_FW_FILTER_WR_IVLAN_VLD) & M_FW_FILTER_WR_IVLAN_VLD) +#define F_FW_FILTER_WR_IVLAN_VLD V_FW_FILTER_WR_IVLAN_VLD(1U) + +#define S_FW_FILTER_WR_OVLAN_VLD 4 +#define M_FW_FILTER_WR_OVLAN_VLD 0x1 +#define V_FW_FILTER_WR_OVLAN_VLD(x) ((x) << S_FW_FILTER_WR_OVLAN_VLD) +#define G_FW_FILTER_WR_OVLAN_VLD(x) \ + (((x) >> S_FW_FILTER_WR_OVLAN_VLD) & M_FW_FILTER_WR_OVLAN_VLD) +#define F_FW_FILTER_WR_OVLAN_VLD V_FW_FILTER_WR_OVLAN_VLD(1U) + +#define S_FW_FILTER_WR_IVLAN_VLDM 3 +#define M_FW_FILTER_WR_IVLAN_VLDM 0x1 +#define V_FW_FILTER_WR_IVLAN_VLDM(x) ((x) << S_FW_FILTER_WR_IVLAN_VLDM) +#define G_FW_FILTER_WR_IVLAN_VLDM(x) \ + (((x) >> S_FW_FILTER_WR_IVLAN_VLDM) & M_FW_FILTER_WR_IVLAN_VLDM) +#define F_FW_FILTER_WR_IVLAN_VLDM V_FW_FILTER_WR_IVLAN_VLDM(1U) + +#define S_FW_FILTER_WR_OVLAN_VLDM 2 +#define M_FW_FILTER_WR_OVLAN_VLDM 0x1 +#define V_FW_FILTER_WR_OVLAN_VLDM(x) ((x) << S_FW_FILTER_WR_OVLAN_VLDM) +#define G_FW_FILTER_WR_OVLAN_VLDM(x) \ + (((x) >> S_FW_FILTER_WR_OVLAN_VLDM) & M_FW_FILTER_WR_OVLAN_VLDM) +#define F_FW_FILTER_WR_OVLAN_VLDM V_FW_FILTER_WR_OVLAN_VLDM(1U) + +#define S_FW_FILTER_WR_RX_CHAN 15 +#define M_FW_FILTER_WR_RX_CHAN 0x1 +#define V_FW_FILTER_WR_RX_CHAN(x) ((x) << S_FW_FILTER_WR_RX_CHAN) +#define G_FW_FILTER_WR_RX_CHAN(x) \ + (((x) >> S_FW_FILTER_WR_RX_CHAN) & M_FW_FILTER_WR_RX_CHAN) +#define F_FW_FILTER_WR_RX_CHAN V_FW_FILTER_WR_RX_CHAN(1U) + +#define S_FW_FILTER_WR_RX_RPL_IQ 0 +#define M_FW_FILTER_WR_RX_RPL_IQ 0x3ff +#define V_FW_FILTER_WR_RX_RPL_IQ(x) ((x) << S_FW_FILTER_WR_RX_RPL_IQ) +#define G_FW_FILTER_WR_RX_RPL_IQ(x) \ + (((x) >> S_FW_FILTER_WR_RX_RPL_IQ) & M_FW_FILTER_WR_RX_RPL_IQ) + +#define S_FW_FILTER_WR_MACI 23 +#define M_FW_FILTER_WR_MACI 0x1ff +#define V_FW_FILTER_WR_MACI(x) ((x) << S_FW_FILTER_WR_MACI) +#define G_FW_FILTER_WR_MACI(x) \ + (((x) >> S_FW_FILTER_WR_MACI) & M_FW_FILTER_WR_MACI) + +#define S_FW_FILTER_WR_MACIM 14 +#define M_FW_FILTER_WR_MACIM 0x1ff +#define V_FW_FILTER_WR_MACIM(x) ((x) << S_FW_FILTER_WR_MACIM) +#define G_FW_FILTER_WR_MACIM(x) \ + (((x) >> S_FW_FILTER_WR_MACIM) & M_FW_FILTER_WR_MACIM) + +#define S_FW_FILTER_WR_FCOE 13 +#define M_FW_FILTER_WR_FCOE 0x1 +#define V_FW_FILTER_WR_FCOE(x) ((x) << S_FW_FILTER_WR_FCOE) +#define G_FW_FILTER_WR_FCOE(x) \ + (((x) >> S_FW_FILTER_WR_FCOE) & M_FW_FILTER_WR_FCOE) +#define F_FW_FILTER_WR_FCOE V_FW_FILTER_WR_FCOE(1U) + +#define S_FW_FILTER_WR_FCOEM 12 +#define M_FW_FILTER_WR_FCOEM 0x1 +#define V_FW_FILTER_WR_FCOEM(x) ((x) << S_FW_FILTER_WR_FCOEM) +#define G_FW_FILTER_WR_FCOEM(x) \ + (((x) >> S_FW_FILTER_WR_FCOEM) & M_FW_FILTER_WR_FCOEM) +#define F_FW_FILTER_WR_FCOEM V_FW_FILTER_WR_FCOEM(1U) + +#define S_FW_FILTER_WR_PORT 9 +#define M_FW_FILTER_WR_PORT 0x7 +#define V_FW_FILTER_WR_PORT(x) ((x) << S_FW_FILTER_WR_PORT) +#define G_FW_FILTER_WR_PORT(x) \ + (((x) >> S_FW_FILTER_WR_PORT) & M_FW_FILTER_WR_PORT) + +#define S_FW_FILTER_WR_PORTM 6 +#define M_FW_FILTER_WR_PORTM 0x7 +#define V_FW_FILTER_WR_PORTM(x) ((x) << S_FW_FILTER_WR_PORTM) +#define G_FW_FILTER_WR_PORTM(x) \ + (((x) >> S_FW_FILTER_WR_PORTM) & M_FW_FILTER_WR_PORTM) + +#define S_FW_FILTER_WR_MATCHTYPE 3 +#define M_FW_FILTER_WR_MATCHTYPE 0x7 +#define V_FW_FILTER_WR_MATCHTYPE(x) ((x) << S_FW_FILTER_WR_MATCHTYPE) +#define G_FW_FILTER_WR_MATCHTYPE(x) \ + (((x) >> S_FW_FILTER_WR_MATCHTYPE) & M_FW_FILTER_WR_MATCHTYPE) + +#define S_FW_FILTER_WR_MATCHTYPEM 0 +#define M_FW_FILTER_WR_MATCHTYPEM 0x7 +#define V_FW_FILTER_WR_MATCHTYPEM(x) ((x) << S_FW_FILTER_WR_MATCHTYPEM) +#define G_FW_FILTER_WR_MATCHTYPEM(x) \ + (((x) >> S_FW_FILTER_WR_MATCHTYPEM) & M_FW_FILTER_WR_MATCHTYPEM) + +struct fw_ulptx_wr { + __be32 op_to_compl; + __be32 flowid_len16; + u64 cookie; +}; + +struct fw_tp_wr { + __be32 op_to_immdlen; + __be32 flowid_len16; + u64 cookie; +}; + +struct fw_eth_tx_pkt_wr { + __be32 op_immdlen; + __be32 equiq_to_len16; + __be64 r3; +}; + +struct fw_ofld_connection_wr { + __be32 op_compl; + __be32 len16_pkd; + __u64 cookie; + __be64 r2; + __be64 r3; + struct fw_ofld_connection_le { + __be32 version_cpl; + __be32 filter; + __be32 r1; + __be16 lport; + __be16 pport; + union fw_ofld_connection_leip { + struct fw_ofld_connection_le_ipv4 { + __be32 pip; + __be32 lip; + __be64 r0; + __be64 r1; + __be64 r2; + } ipv4; + struct fw_ofld_connection_le_ipv6 { + __be64 pip_hi; + __be64 pip_lo; + __be64 lip_hi; + __be64 lip_lo; + } ipv6; + } u; + } le; + struct fw_ofld_connection_tcb { + __be32 t_state_to_astid; + __be16 cplrxdataack_cplpassacceptrpl; + __be16 rcv_adv; + __be32 rcv_nxt; + __be32 tx_max; + __be64 opt0; + __be32 opt2; + __be32 r1; + __be64 r2; + __be64 r3; + } tcb; +}; + +#define S_FW_OFLD_CONNECTION_WR_VERSION 31 +#define M_FW_OFLD_CONNECTION_WR_VERSION 0x1 +#define V_FW_OFLD_CONNECTION_WR_VERSION(x) \ + ((x) << S_FW_OFLD_CONNECTION_WR_VERSION) +#define G_FW_OFLD_CONNECTION_WR_VERSION(x) \ + (((x) >> S_FW_OFLD_CONNECTION_WR_VERSION) & \ + M_FW_OFLD_CONNECTION_WR_VERSION) +#define F_FW_OFLD_CONNECTION_WR_VERSION \ + V_FW_OFLD_CONNECTION_WR_VERSION(1U) + +#define S_FW_OFLD_CONNECTION_WR_CPL 30 +#define M_FW_OFLD_CONNECTION_WR_CPL 0x1 +#define V_FW_OFLD_CONNECTION_WR_CPL(x) ((x) << S_FW_OFLD_CONNECTION_WR_CPL) +#define G_FW_OFLD_CONNECTION_WR_CPL(x) \ + (((x) >> S_FW_OFLD_CONNECTION_WR_CPL) & M_FW_OFLD_CONNECTION_WR_CPL) +#define F_FW_OFLD_CONNECTION_WR_CPL V_FW_OFLD_CONNECTION_WR_CPL(1U) + +#define S_FW_OFLD_CONNECTION_WR_T_STATE 28 +#define M_FW_OFLD_CONNECTION_WR_T_STATE 0xf +#define V_FW_OFLD_CONNECTION_WR_T_STATE(x) \ + ((x) << S_FW_OFLD_CONNECTION_WR_T_STATE) +#define G_FW_OFLD_CONNECTION_WR_T_STATE(x) \ + (((x) >> S_FW_OFLD_CONNECTION_WR_T_STATE) & \ + M_FW_OFLD_CONNECTION_WR_T_STATE) + +#define S_FW_OFLD_CONNECTION_WR_RCV_SCALE 24 +#define M_FW_OFLD_CONNECTION_WR_RCV_SCALE 0xf +#define V_FW_OFLD_CONNECTION_WR_RCV_SCALE(x) \ + ((x) << S_FW_OFLD_CONNECTION_WR_RCV_SCALE) +#define G_FW_OFLD_CONNECTION_WR_RCV_SCALE(x) \ + (((x) >> S_FW_OFLD_CONNECTION_WR_RCV_SCALE) & \ + M_FW_OFLD_CONNECTION_WR_RCV_SCALE) + +#define S_FW_OFLD_CONNECTION_WR_ASTID 0 +#define M_FW_OFLD_CONNECTION_WR_ASTID 0xffffff +#define V_FW_OFLD_CONNECTION_WR_ASTID(x) \ + ((x) << S_FW_OFLD_CONNECTION_WR_ASTID) +#define G_FW_OFLD_CONNECTION_WR_ASTID(x) \ + (((x) >> S_FW_OFLD_CONNECTION_WR_ASTID) & M_FW_OFLD_CONNECTION_WR_ASTID) + +#define S_FW_OFLD_CONNECTION_WR_CPLRXDATAACK 15 +#define M_FW_OFLD_CONNECTION_WR_CPLRXDATAACK 0x1 +#define V_FW_OFLD_CONNECTION_WR_CPLRXDATAACK(x) \ + ((x) << S_FW_OFLD_CONNECTION_WR_CPLRXDATAACK) +#define G_FW_OFLD_CONNECTION_WR_CPLRXDATAACK(x) \ + (((x) >> S_FW_OFLD_CONNECTION_WR_CPLRXDATAACK) & \ + M_FW_OFLD_CONNECTION_WR_CPLRXDATAACK) +#define F_FW_OFLD_CONNECTION_WR_CPLRXDATAACK \ + V_FW_OFLD_CONNECTION_WR_CPLRXDATAACK(1U) + +#define S_FW_OFLD_CONNECTION_WR_CPLPASSACCEPTRPL 14 +#define M_FW_OFLD_CONNECTION_WR_CPLPASSACCEPTRPL 0x1 +#define V_FW_OFLD_CONNECTION_WR_CPLPASSACCEPTRPL(x) \ + ((x) << S_FW_OFLD_CONNECTION_WR_CPLPASSACCEPTRPL) +#define G_FW_OFLD_CONNECTION_WR_CPLPASSACCEPTRPL(x) \ + (((x) >> S_FW_OFLD_CONNECTION_WR_CPLPASSACCEPTRPL) & \ + M_FW_OFLD_CONNECTION_WR_CPLPASSACCEPTRPL) +#define F_FW_OFLD_CONNECTION_WR_CPLPASSACCEPTRPL \ + V_FW_OFLD_CONNECTION_WR_CPLPASSACCEPTRPL(1U) + +enum fw_flowc_mnem { + FW_FLOWC_MNEM_PFNVFN, /* PFN [15:8] VFN [7:0] */ + FW_FLOWC_MNEM_CH, + FW_FLOWC_MNEM_PORT, + FW_FLOWC_MNEM_IQID, + FW_FLOWC_MNEM_SNDNXT, + FW_FLOWC_MNEM_RCVNXT, + FW_FLOWC_MNEM_SNDBUF, + FW_FLOWC_MNEM_MSS, +}; + +struct fw_flowc_mnemval { + u8 mnemonic; + u8 r4[3]; + __be32 val; +}; + +struct fw_flowc_wr { + __be32 op_to_nparams; +#define FW_FLOWC_WR_NPARAMS(x) ((x) << 0) + __be32 flowid_len16; + struct fw_flowc_mnemval mnemval[0]; +}; + +struct fw_ofld_tx_data_wr { + __be32 op_to_immdlen; + __be32 flowid_len16; + __be32 plen; + __be32 tunnel_to_proxy; +#define FW_OFLD_TX_DATA_WR_TUNNEL(x) ((x) << 19) +#define FW_OFLD_TX_DATA_WR_SAVE(x) ((x) << 18) +#define FW_OFLD_TX_DATA_WR_FLUSH(x) ((x) << 17) +#define FW_OFLD_TX_DATA_WR_URGENT(x) ((x) << 16) +#define FW_OFLD_TX_DATA_WR_MORE(x) ((x) << 15) +#define FW_OFLD_TX_DATA_WR_SHOVE(x) ((x) << 14) +#define FW_OFLD_TX_DATA_WR_ULPMODE(x) ((x) << 10) +#define FW_OFLD_TX_DATA_WR_ULPSUBMODE(x) ((x) << 6) +}; + +struct fw_cmd_wr { + __be32 op_dma; +#define FW_CMD_WR_DMA (1U << 17) + __be32 len16_pkd; + __be64 cookie_daddr; +}; + +struct fw_eth_tx_pkt_vm_wr { + __be32 op_immdlen; + __be32 equiq_to_len16; + __be32 r3[2]; + u8 ethmacdst[6]; + u8 ethmacsrc[6]; + __be16 ethtype; + __be16 vlantci; +}; + +#define FW_CMD_MAX_TIMEOUT 10000 + +/* + * If a host driver does a HELLO and discovers that there's already a MASTER + * selected, we may have to wait for that MASTER to finish issuing RESET, + * configuration and INITIALIZE commands. Also, there's a possibility that + * our own HELLO may get lost if it happens right as the MASTER is issuign a + * RESET command, so we need to be willing to make a few retries of our HELLO. + */ +#define FW_CMD_HELLO_TIMEOUT (3 * FW_CMD_MAX_TIMEOUT) +#define FW_CMD_HELLO_RETRIES 3 + + +enum fw_cmd_opcodes { + FW_LDST_CMD = 0x01, + FW_RESET_CMD = 0x03, + FW_HELLO_CMD = 0x04, + FW_BYE_CMD = 0x05, + FW_INITIALIZE_CMD = 0x06, + FW_CAPS_CONFIG_CMD = 0x07, + FW_PARAMS_CMD = 0x08, + FW_PFVF_CMD = 0x09, + FW_IQ_CMD = 0x10, + FW_EQ_MNGT_CMD = 0x11, + FW_EQ_ETH_CMD = 0x12, + FW_EQ_CTRL_CMD = 0x13, + FW_EQ_OFLD_CMD = 0x21, + FW_VI_CMD = 0x14, + FW_VI_MAC_CMD = 0x15, + FW_VI_RXMODE_CMD = 0x16, + FW_VI_ENABLE_CMD = 0x17, + FW_ACL_MAC_CMD = 0x18, + FW_ACL_VLAN_CMD = 0x19, + FW_VI_STATS_CMD = 0x1a, + FW_PORT_CMD = 0x1b, + FW_PORT_STATS_CMD = 0x1c, + FW_PORT_LB_STATS_CMD = 0x1d, + FW_PORT_TRACE_CMD = 0x1e, + FW_PORT_TRACE_MMAP_CMD = 0x1f, + FW_RSS_IND_TBL_CMD = 0x20, + FW_RSS_GLB_CONFIG_CMD = 0x22, + FW_RSS_VI_CONFIG_CMD = 0x23, + FW_CLIP_CMD = 0x28, + FW_LASTC2E_CMD = 0x40, + FW_ERROR_CMD = 0x80, + FW_DEBUG_CMD = 0x81, +}; + +enum fw_cmd_cap { + FW_CMD_CAP_PF = 0x01, + FW_CMD_CAP_DMAQ = 0x02, + FW_CMD_CAP_PORT = 0x04, + FW_CMD_CAP_PORTPROMISC = 0x08, + FW_CMD_CAP_PORTSTATS = 0x10, + FW_CMD_CAP_VF = 0x80, +}; + +/* + * Generic command header flit0 + */ +struct fw_cmd_hdr { + __be32 hi; + __be32 lo; +}; + +#define FW_CMD_OP(x) ((x) << 24) +#define FW_CMD_OP_GET(x) (((x) >> 24) & 0xff) +#define FW_CMD_REQUEST (1U << 23) +#define FW_CMD_REQUEST_GET(x) (((x) >> 23) & 0x1) +#define FW_CMD_READ (1U << 22) +#define FW_CMD_WRITE (1U << 21) +#define FW_CMD_EXEC (1U << 20) +#define FW_CMD_RAMASK(x) ((x) << 20) +#define FW_CMD_RETVAL(x) ((x) << 8) +#define FW_CMD_RETVAL_GET(x) (((x) >> 8) & 0xff) +#define FW_CMD_LEN16(x) ((x) << 0) +#define FW_LEN16(fw_struct) FW_CMD_LEN16(sizeof(fw_struct) / 16) + +enum fw_ldst_addrspc { + FW_LDST_ADDRSPC_FIRMWARE = 0x0001, + FW_LDST_ADDRSPC_SGE_EGRC = 0x0008, + FW_LDST_ADDRSPC_SGE_INGC = 0x0009, + FW_LDST_ADDRSPC_SGE_FLMC = 0x000a, + FW_LDST_ADDRSPC_SGE_CONMC = 0x000b, + FW_LDST_ADDRSPC_TP_PIO = 0x0010, + FW_LDST_ADDRSPC_TP_TM_PIO = 0x0011, + FW_LDST_ADDRSPC_TP_MIB = 0x0012, + FW_LDST_ADDRSPC_MDIO = 0x0018, + FW_LDST_ADDRSPC_MPS = 0x0020, + FW_LDST_ADDRSPC_FUNC = 0x0028, + FW_LDST_ADDRSPC_FUNC_PCIE = 0x0029, +}; + +enum fw_ldst_mps_fid { + FW_LDST_MPS_ATRB, + FW_LDST_MPS_RPLC +}; + +enum fw_ldst_func_access_ctl { + FW_LDST_FUNC_ACC_CTL_VIID, + FW_LDST_FUNC_ACC_CTL_FID +}; + +enum fw_ldst_func_mod_index { + FW_LDST_FUNC_MPS +}; + +struct fw_ldst_cmd { + __be32 op_to_addrspace; +#define FW_LDST_CMD_ADDRSPACE(x) ((x) << 0) + __be32 cycles_to_len16; + union fw_ldst { + struct fw_ldst_addrval { + __be32 addr; + __be32 val; + } addrval; + struct fw_ldst_idctxt { + __be32 physid; + __be32 msg_pkd; + __be32 ctxt_data7; + __be32 ctxt_data6; + __be32 ctxt_data5; + __be32 ctxt_data4; + __be32 ctxt_data3; + __be32 ctxt_data2; + __be32 ctxt_data1; + __be32 ctxt_data0; + } idctxt; + struct fw_ldst_mdio { + __be16 paddr_mmd; + __be16 raddr; + __be16 vctl; + __be16 rval; + } mdio; + struct fw_ldst_mps { + __be16 fid_ctl; + __be16 rplcpf_pkd; + __be32 rplc127_96; + __be32 rplc95_64; + __be32 rplc63_32; + __be32 rplc31_0; + __be32 atrb; + __be16 vlan[16]; + } mps; + struct fw_ldst_func { + u8 access_ctl; + u8 mod_index; + __be16 ctl_id; + __be32 offset; + __be64 data0; + __be64 data1; + } func; + struct fw_ldst_pcie { + u8 ctrl_to_fn; + u8 bnum; + u8 r; + u8 ext_r; + u8 select_naccess; + u8 pcie_fn; + __be16 nset_pkd; + __be32 data[12]; + } pcie; + } u; +}; + +#define FW_LDST_CMD_MSG(x) ((x) << 31) +#define FW_LDST_CMD_PADDR(x) ((x) << 8) +#define FW_LDST_CMD_MMD(x) ((x) << 0) +#define FW_LDST_CMD_FID(x) ((x) << 15) +#define FW_LDST_CMD_CTL(x) ((x) << 0) +#define FW_LDST_CMD_RPLCPF(x) ((x) << 0) +#define FW_LDST_CMD_LC (1U << 4) +#define FW_LDST_CMD_NACCESS(x) ((x) << 0) +#define FW_LDST_CMD_FN(x) ((x) << 0) + +struct fw_reset_cmd { + __be32 op_to_write; + __be32 retval_len16; + __be32 val; + __be32 halt_pkd; +}; + +#define FW_RESET_CMD_HALT_SHIFT 31 +#define FW_RESET_CMD_HALT_MASK 0x1 +#define FW_RESET_CMD_HALT(x) ((x) << FW_RESET_CMD_HALT_SHIFT) +#define FW_RESET_CMD_HALT_GET(x) \ + (((x) >> FW_RESET_CMD_HALT_SHIFT) & FW_RESET_CMD_HALT_MASK) + +enum fw_hellow_cmd { + fw_hello_cmd_stage_os = 0x0 +}; + +struct fw_hello_cmd { + __be32 op_to_write; + __be32 retval_len16; + __be32 err_to_clearinit; +#define FW_HELLO_CMD_ERR (1U << 31) +#define FW_HELLO_CMD_INIT (1U << 30) +#define FW_HELLO_CMD_MASTERDIS(x) ((x) << 29) +#define FW_HELLO_CMD_MASTERFORCE(x) ((x) << 28) +#define FW_HELLO_CMD_MBMASTER_MASK 0xfU +#define FW_HELLO_CMD_MBMASTER_SHIFT 24 +#define FW_HELLO_CMD_MBMASTER(x) ((x) << FW_HELLO_CMD_MBMASTER_SHIFT) +#define FW_HELLO_CMD_MBMASTER_GET(x) \ + (((x) >> FW_HELLO_CMD_MBMASTER_SHIFT) & FW_HELLO_CMD_MBMASTER_MASK) +#define FW_HELLO_CMD_MBASYNCNOTINT(x) ((x) << 23) +#define FW_HELLO_CMD_MBASYNCNOT(x) ((x) << 20) +#define FW_HELLO_CMD_STAGE(x) ((x) << 17) +#define FW_HELLO_CMD_CLEARINIT (1U << 16) + __be32 fwrev; +}; + +struct fw_bye_cmd { + __be32 op_to_write; + __be32 retval_len16; + __be64 r3; +}; + +struct fw_initialize_cmd { + __be32 op_to_write; + __be32 retval_len16; + __be64 r3; +}; + +enum fw_caps_config_hm { + FW_CAPS_CONFIG_HM_PCIE = 0x00000001, + FW_CAPS_CONFIG_HM_PL = 0x00000002, + FW_CAPS_CONFIG_HM_SGE = 0x00000004, + FW_CAPS_CONFIG_HM_CIM = 0x00000008, + FW_CAPS_CONFIG_HM_ULPTX = 0x00000010, + FW_CAPS_CONFIG_HM_TP = 0x00000020, + FW_CAPS_CONFIG_HM_ULPRX = 0x00000040, + FW_CAPS_CONFIG_HM_PMRX = 0x00000080, + FW_CAPS_CONFIG_HM_PMTX = 0x00000100, + FW_CAPS_CONFIG_HM_MC = 0x00000200, + FW_CAPS_CONFIG_HM_LE = 0x00000400, + FW_CAPS_CONFIG_HM_MPS = 0x00000800, + FW_CAPS_CONFIG_HM_XGMAC = 0x00001000, + FW_CAPS_CONFIG_HM_CPLSWITCH = 0x00002000, + FW_CAPS_CONFIG_HM_T4DBG = 0x00004000, + FW_CAPS_CONFIG_HM_MI = 0x00008000, + FW_CAPS_CONFIG_HM_I2CM = 0x00010000, + FW_CAPS_CONFIG_HM_NCSI = 0x00020000, + FW_CAPS_CONFIG_HM_SMB = 0x00040000, + FW_CAPS_CONFIG_HM_MA = 0x00080000, + FW_CAPS_CONFIG_HM_EDRAM = 0x00100000, + FW_CAPS_CONFIG_HM_PMU = 0x00200000, + FW_CAPS_CONFIG_HM_UART = 0x00400000, + FW_CAPS_CONFIG_HM_SF = 0x00800000, +}; + +enum fw_caps_config_nbm { + FW_CAPS_CONFIG_NBM_IPMI = 0x00000001, + FW_CAPS_CONFIG_NBM_NCSI = 0x00000002, +}; + +enum fw_caps_config_link { + FW_CAPS_CONFIG_LINK_PPP = 0x00000001, + FW_CAPS_CONFIG_LINK_QFC = 0x00000002, + FW_CAPS_CONFIG_LINK_DCBX = 0x00000004, +}; + +enum fw_caps_config_switch { + FW_CAPS_CONFIG_SWITCH_INGRESS = 0x00000001, + FW_CAPS_CONFIG_SWITCH_EGRESS = 0x00000002, +}; + +enum fw_caps_config_nic { + FW_CAPS_CONFIG_NIC = 0x00000001, + FW_CAPS_CONFIG_NIC_VM = 0x00000002, +}; + +enum fw_caps_config_ofld { + FW_CAPS_CONFIG_OFLD = 0x00000001, +}; + +enum fw_caps_config_rdma { + FW_CAPS_CONFIG_RDMA_RDDP = 0x00000001, + FW_CAPS_CONFIG_RDMA_RDMAC = 0x00000002, +}; + +enum fw_caps_config_iscsi { + FW_CAPS_CONFIG_ISCSI_INITIATOR_PDU = 0x00000001, + FW_CAPS_CONFIG_ISCSI_TARGET_PDU = 0x00000002, + FW_CAPS_CONFIG_ISCSI_INITIATOR_CNXOFLD = 0x00000004, + FW_CAPS_CONFIG_ISCSI_TARGET_CNXOFLD = 0x00000008, +}; + +enum fw_caps_config_fcoe { + FW_CAPS_CONFIG_FCOE_INITIATOR = 0x00000001, + FW_CAPS_CONFIG_FCOE_TARGET = 0x00000002, + FW_CAPS_CONFIG_FCOE_CTRL_OFLD = 0x00000004, +}; + +enum fw_memtype_cf { + FW_MEMTYPE_CF_EDC0 = 0x0, + FW_MEMTYPE_CF_EDC1 = 0x1, + FW_MEMTYPE_CF_EXTMEM = 0x2, + FW_MEMTYPE_CF_FLASH = 0x4, + FW_MEMTYPE_CF_INTERNAL = 0x5, +}; + +struct fw_caps_config_cmd { + __be32 op_to_write; + __be32 cfvalid_to_len16; + __be32 r2; + __be32 hwmbitmap; + __be16 nbmcaps; + __be16 linkcaps; + __be16 switchcaps; + __be16 r3; + __be16 niccaps; + __be16 ofldcaps; + __be16 rdmacaps; + __be16 r4; + __be16 iscsicaps; + __be16 fcoecaps; + __be32 cfcsum; + __be32 finiver; + __be32 finicsum; +}; + +#define FW_CAPS_CONFIG_CMD_CFVALID (1U << 27) +#define FW_CAPS_CONFIG_CMD_MEMTYPE_CF(x) ((x) << 24) +#define FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(x) ((x) << 16) + +/* + * params command mnemonics + */ +enum fw_params_mnem { + FW_PARAMS_MNEM_DEV = 1, /* device params */ + FW_PARAMS_MNEM_PFVF = 2, /* function params */ + FW_PARAMS_MNEM_REG = 3, /* limited register access */ + FW_PARAMS_MNEM_DMAQ = 4, /* dma queue params */ + FW_PARAMS_MNEM_LAST +}; + +/* + * device parameters + */ +enum fw_params_param_dev { + FW_PARAMS_PARAM_DEV_CCLK = 0x00, /* chip core clock in khz */ + FW_PARAMS_PARAM_DEV_PORTVEC = 0x01, /* the port vector */ + FW_PARAMS_PARAM_DEV_NTID = 0x02, /* reads the number of TIDs + * allocated by the device's + * Lookup Engine + */ + FW_PARAMS_PARAM_DEV_FLOWC_BUFFIFO_SZ = 0x03, + FW_PARAMS_PARAM_DEV_INTVER_NIC = 0x04, + FW_PARAMS_PARAM_DEV_INTVER_VNIC = 0x05, + FW_PARAMS_PARAM_DEV_INTVER_OFLD = 0x06, + FW_PARAMS_PARAM_DEV_INTVER_RI = 0x07, + FW_PARAMS_PARAM_DEV_INTVER_ISCSIPDU = 0x08, + FW_PARAMS_PARAM_DEV_INTVER_ISCSI = 0x09, + FW_PARAMS_PARAM_DEV_INTVER_FCOE = 0x0A, + FW_PARAMS_PARAM_DEV_FWREV = 0x0B, + FW_PARAMS_PARAM_DEV_TPREV = 0x0C, + FW_PARAMS_PARAM_DEV_CF = 0x0D, + FW_PARAMS_PARAM_DEV_ULPTX_MEMWRITE_DSGL = 0x17, +}; + +/* + * physical and virtual function parameters + */ +enum fw_params_param_pfvf { + FW_PARAMS_PARAM_PFVF_RWXCAPS = 0x00, + FW_PARAMS_PARAM_PFVF_ROUTE_START = 0x01, + FW_PARAMS_PARAM_PFVF_ROUTE_END = 0x02, + FW_PARAMS_PARAM_PFVF_CLIP_START = 0x03, + FW_PARAMS_PARAM_PFVF_CLIP_END = 0x04, + FW_PARAMS_PARAM_PFVF_FILTER_START = 0x05, + FW_PARAMS_PARAM_PFVF_FILTER_END = 0x06, + FW_PARAMS_PARAM_PFVF_SERVER_START = 0x07, + FW_PARAMS_PARAM_PFVF_SERVER_END = 0x08, + FW_PARAMS_PARAM_PFVF_TDDP_START = 0x09, + FW_PARAMS_PARAM_PFVF_TDDP_END = 0x0A, + FW_PARAMS_PARAM_PFVF_ISCSI_START = 0x0B, + FW_PARAMS_PARAM_PFVF_ISCSI_END = 0x0C, + FW_PARAMS_PARAM_PFVF_STAG_START = 0x0D, + FW_PARAMS_PARAM_PFVF_STAG_END = 0x0E, + FW_PARAMS_PARAM_PFVF_RQ_START = 0x1F, + FW_PARAMS_PARAM_PFVF_RQ_END = 0x10, + FW_PARAMS_PARAM_PFVF_PBL_START = 0x11, + FW_PARAMS_PARAM_PFVF_PBL_END = 0x12, + FW_PARAMS_PARAM_PFVF_L2T_START = 0x13, + FW_PARAMS_PARAM_PFVF_L2T_END = 0x14, + FW_PARAMS_PARAM_PFVF_SQRQ_START = 0x15, + FW_PARAMS_PARAM_PFVF_SQRQ_END = 0x16, + FW_PARAMS_PARAM_PFVF_CQ_START = 0x17, + FW_PARAMS_PARAM_PFVF_CQ_END = 0x18, + FW_PARAMS_PARAM_PFVF_SCHEDCLASS_ETH = 0x20, + FW_PARAMS_PARAM_PFVF_VIID = 0x24, + FW_PARAMS_PARAM_PFVF_CPMASK = 0x25, + FW_PARAMS_PARAM_PFVF_OCQ_START = 0x26, + FW_PARAMS_PARAM_PFVF_OCQ_END = 0x27, + FW_PARAMS_PARAM_PFVF_CONM_MAP = 0x28, + FW_PARAMS_PARAM_PFVF_IQFLINT_START = 0x29, + FW_PARAMS_PARAM_PFVF_IQFLINT_END = 0x2A, + FW_PARAMS_PARAM_PFVF_EQ_START = 0x2B, + FW_PARAMS_PARAM_PFVF_EQ_END = 0x2C, + FW_PARAMS_PARAM_PFVF_ACTIVE_FILTER_START = 0x2D, + FW_PARAMS_PARAM_PFVF_ACTIVE_FILTER_END = 0x2E, + FW_PARAMS_PARAM_PFVF_ETHOFLD_END = 0x30, + FW_PARAMS_PARAM_PFVF_CPLFW4MSG_ENCAP = 0x31 +}; + +/* + * dma queue parameters + */ +enum fw_params_param_dmaq { + FW_PARAMS_PARAM_DMAQ_IQ_DCAEN_DCACPU = 0x00, + FW_PARAMS_PARAM_DMAQ_IQ_INTCNTTHRESH = 0x01, + FW_PARAMS_PARAM_DMAQ_EQ_CMPLIQID_MNGT = 0x10, + FW_PARAMS_PARAM_DMAQ_EQ_CMPLIQID_CTRL = 0x11, + FW_PARAMS_PARAM_DMAQ_EQ_SCHEDCLASS_ETH = 0x12, +}; + +#define FW_PARAMS_MNEM(x) ((x) << 24) +#define FW_PARAMS_PARAM_X(x) ((x) << 16) +#define FW_PARAMS_PARAM_Y_SHIFT 8 +#define FW_PARAMS_PARAM_Y_MASK 0xffU +#define FW_PARAMS_PARAM_Y(x) ((x) << FW_PARAMS_PARAM_Y_SHIFT) +#define FW_PARAMS_PARAM_Y_GET(x) (((x) >> FW_PARAMS_PARAM_Y_SHIFT) &\ + FW_PARAMS_PARAM_Y_MASK) +#define FW_PARAMS_PARAM_Z_SHIFT 0 +#define FW_PARAMS_PARAM_Z_MASK 0xffu +#define FW_PARAMS_PARAM_Z(x) ((x) << FW_PARAMS_PARAM_Z_SHIFT) +#define FW_PARAMS_PARAM_Z_GET(x) (((x) >> FW_PARAMS_PARAM_Z_SHIFT) &\ + FW_PARAMS_PARAM_Z_MASK) +#define FW_PARAMS_PARAM_XYZ(x) ((x) << 0) +#define FW_PARAMS_PARAM_YZ(x) ((x) << 0) + +struct fw_params_cmd { + __be32 op_to_vfn; + __be32 retval_len16; + struct fw_params_param { + __be32 mnem; + __be32 val; + } param[7]; +}; + +#define FW_PARAMS_CMD_PFN(x) ((x) << 8) +#define FW_PARAMS_CMD_VFN(x) ((x) << 0) + +struct fw_pfvf_cmd { + __be32 op_to_vfn; + __be32 retval_len16; + __be32 niqflint_niq; + __be32 type_to_neq; + __be32 tc_to_nexactf; + __be32 r_caps_to_nethctrl; + __be16 nricq; + __be16 nriqp; + __be32 r4; +}; + +#define FW_PFVF_CMD_PFN(x) ((x) << 8) +#define FW_PFVF_CMD_VFN(x) ((x) << 0) + +#define FW_PFVF_CMD_NIQFLINT(x) ((x) << 20) +#define FW_PFVF_CMD_NIQFLINT_GET(x) (((x) >> 20) & 0xfff) + +#define FW_PFVF_CMD_NIQ(x) ((x) << 0) +#define FW_PFVF_CMD_NIQ_GET(x) (((x) >> 0) & 0xfffff) + +#define FW_PFVF_CMD_TYPE (1 << 31) +#define FW_PFVF_CMD_TYPE_GET(x) (((x) >> 31) & 0x1) + +#define FW_PFVF_CMD_CMASK(x) ((x) << 24) +#define FW_PFVF_CMD_CMASK_MASK 0xf +#define FW_PFVF_CMD_CMASK_GET(x) (((x) >> 24) & FW_PFVF_CMD_CMASK_MASK) + +#define FW_PFVF_CMD_PMASK(x) ((x) << 20) +#define FW_PFVF_CMD_PMASK_MASK 0xf +#define FW_PFVF_CMD_PMASK_GET(x) (((x) >> 20) & FW_PFVF_CMD_PMASK_MASK) + +#define FW_PFVF_CMD_NEQ(x) ((x) << 0) +#define FW_PFVF_CMD_NEQ_GET(x) (((x) >> 0) & 0xfffff) + +#define FW_PFVF_CMD_TC(x) ((x) << 24) +#define FW_PFVF_CMD_TC_GET(x) (((x) >> 24) & 0xff) + +#define FW_PFVF_CMD_NVI(x) ((x) << 16) +#define FW_PFVF_CMD_NVI_GET(x) (((x) >> 16) & 0xff) + +#define FW_PFVF_CMD_NEXACTF(x) ((x) << 0) +#define FW_PFVF_CMD_NEXACTF_GET(x) (((x) >> 0) & 0xffff) + +#define FW_PFVF_CMD_R_CAPS(x) ((x) << 24) +#define FW_PFVF_CMD_R_CAPS_GET(x) (((x) >> 24) & 0xff) + +#define FW_PFVF_CMD_WX_CAPS(x) ((x) << 16) +#define FW_PFVF_CMD_WX_CAPS_GET(x) (((x) >> 16) & 0xff) + +#define FW_PFVF_CMD_NETHCTRL(x) ((x) << 0) +#define FW_PFVF_CMD_NETHCTRL_GET(x) (((x) >> 0) & 0xffff) + +enum fw_iq_type { + FW_IQ_TYPE_FL_INT_CAP, + FW_IQ_TYPE_NO_FL_INT_CAP +}; + +struct fw_iq_cmd { + __be32 op_to_vfn; + __be32 alloc_to_len16; + __be16 physiqid; + __be16 iqid; + __be16 fl0id; + __be16 fl1id; + __be32 type_to_iqandstindex; + __be16 iqdroprss_to_iqesize; + __be16 iqsize; + __be64 iqaddr; + __be32 iqns_to_fl0congen; + __be16 fl0dcaen_to_fl0cidxfthresh; + __be16 fl0size; + __be64 fl0addr; + __be32 fl1cngchmap_to_fl1congen; + __be16 fl1dcaen_to_fl1cidxfthresh; + __be16 fl1size; + __be64 fl1addr; +}; + +#define FW_IQ_CMD_PFN(x) ((x) << 8) +#define FW_IQ_CMD_VFN(x) ((x) << 0) + +#define FW_IQ_CMD_ALLOC (1U << 31) +#define FW_IQ_CMD_FREE (1U << 30) +#define FW_IQ_CMD_MODIFY (1U << 29) +#define FW_IQ_CMD_IQSTART(x) ((x) << 28) +#define FW_IQ_CMD_IQSTOP(x) ((x) << 27) + +#define FW_IQ_CMD_TYPE(x) ((x) << 29) +#define FW_IQ_CMD_IQASYNCH(x) ((x) << 28) +#define FW_IQ_CMD_VIID(x) ((x) << 16) +#define FW_IQ_CMD_IQANDST(x) ((x) << 15) +#define FW_IQ_CMD_IQANUS(x) ((x) << 14) +#define FW_IQ_CMD_IQANUD(x) ((x) << 12) +#define FW_IQ_CMD_IQANDSTINDEX(x) ((x) << 0) + +#define FW_IQ_CMD_IQDROPRSS (1U << 15) +#define FW_IQ_CMD_IQGTSMODE (1U << 14) +#define FW_IQ_CMD_IQPCIECH(x) ((x) << 12) +#define FW_IQ_CMD_IQDCAEN(x) ((x) << 11) +#define FW_IQ_CMD_IQDCACPU(x) ((x) << 6) +#define FW_IQ_CMD_IQINTCNTTHRESH(x) ((x) << 4) +#define FW_IQ_CMD_IQO (1U << 3) +#define FW_IQ_CMD_IQCPRIO(x) ((x) << 2) +#define FW_IQ_CMD_IQESIZE(x) ((x) << 0) + +#define FW_IQ_CMD_IQNS(x) ((x) << 31) +#define FW_IQ_CMD_IQRO(x) ((x) << 30) +#define FW_IQ_CMD_IQFLINTIQHSEN(x) ((x) << 28) +#define FW_IQ_CMD_IQFLINTCONGEN(x) ((x) << 27) +#define FW_IQ_CMD_IQFLINTISCSIC(x) ((x) << 26) +#define FW_IQ_CMD_FL0CNGCHMAP(x) ((x) << 20) +#define FW_IQ_CMD_FL0CACHELOCK(x) ((x) << 15) +#define FW_IQ_CMD_FL0DBP(x) ((x) << 14) +#define FW_IQ_CMD_FL0DATANS(x) ((x) << 13) +#define FW_IQ_CMD_FL0DATARO(x) ((x) << 12) +#define FW_IQ_CMD_FL0CONGCIF(x) ((x) << 11) +#define FW_IQ_CMD_FL0ONCHIP(x) ((x) << 10) +#define FW_IQ_CMD_FL0STATUSPGNS(x) ((x) << 9) +#define FW_IQ_CMD_FL0STATUSPGRO(x) ((x) << 8) +#define FW_IQ_CMD_FL0FETCHNS(x) ((x) << 7) +#define FW_IQ_CMD_FL0FETCHRO(x) ((x) << 6) +#define FW_IQ_CMD_FL0HOSTFCMODE(x) ((x) << 4) +#define FW_IQ_CMD_FL0CPRIO(x) ((x) << 3) +#define FW_IQ_CMD_FL0PADEN(x) ((x) << 2) +#define FW_IQ_CMD_FL0PACKEN(x) ((x) << 1) +#define FW_IQ_CMD_FL0CONGEN (1U << 0) + +#define FW_IQ_CMD_FL0DCAEN(x) ((x) << 15) +#define FW_IQ_CMD_FL0DCACPU(x) ((x) << 10) +#define FW_IQ_CMD_FL0FBMIN(x) ((x) << 7) +#define FW_IQ_CMD_FL0FBMAX(x) ((x) << 4) +#define FW_IQ_CMD_FL0CIDXFTHRESHO (1U << 3) +#define FW_IQ_CMD_FL0CIDXFTHRESH(x) ((x) << 0) + +#define FW_IQ_CMD_FL1CNGCHMAP(x) ((x) << 20) +#define FW_IQ_CMD_FL1CACHELOCK(x) ((x) << 15) +#define FW_IQ_CMD_FL1DBP(x) ((x) << 14) +#define FW_IQ_CMD_FL1DATANS(x) ((x) << 13) +#define FW_IQ_CMD_FL1DATARO(x) ((x) << 12) +#define FW_IQ_CMD_FL1CONGCIF(x) ((x) << 11) +#define FW_IQ_CMD_FL1ONCHIP(x) ((x) << 10) +#define FW_IQ_CMD_FL1STATUSPGNS(x) ((x) << 9) +#define FW_IQ_CMD_FL1STATUSPGRO(x) ((x) << 8) +#define FW_IQ_CMD_FL1FETCHNS(x) ((x) << 7) +#define FW_IQ_CMD_FL1FETCHRO(x) ((x) << 6) +#define FW_IQ_CMD_FL1HOSTFCMODE(x) ((x) << 4) +#define FW_IQ_CMD_FL1CPRIO(x) ((x) << 3) +#define FW_IQ_CMD_FL1PADEN (1U << 2) +#define FW_IQ_CMD_FL1PACKEN (1U << 1) +#define FW_IQ_CMD_FL1CONGEN (1U << 0) + +#define FW_IQ_CMD_FL1DCAEN(x) ((x) << 15) +#define FW_IQ_CMD_FL1DCACPU(x) ((x) << 10) +#define FW_IQ_CMD_FL1FBMIN(x) ((x) << 7) +#define FW_IQ_CMD_FL1FBMAX(x) ((x) << 4) +#define FW_IQ_CMD_FL1CIDXFTHRESHO (1U << 3) +#define FW_IQ_CMD_FL1CIDXFTHRESH(x) ((x) << 0) + +struct fw_eq_eth_cmd { + __be32 op_to_vfn; + __be32 alloc_to_len16; + __be32 eqid_pkd; + __be32 physeqid_pkd; + __be32 fetchszm_to_iqid; + __be32 dcaen_to_eqsize; + __be64 eqaddr; + __be32 viid_pkd; + __be32 r8_lo; + __be64 r9; +}; + +#define FW_EQ_ETH_CMD_PFN(x) ((x) << 8) +#define FW_EQ_ETH_CMD_VFN(x) ((x) << 0) +#define FW_EQ_ETH_CMD_ALLOC (1U << 31) +#define FW_EQ_ETH_CMD_FREE (1U << 30) +#define FW_EQ_ETH_CMD_MODIFY (1U << 29) +#define FW_EQ_ETH_CMD_EQSTART (1U << 28) +#define FW_EQ_ETH_CMD_EQSTOP (1U << 27) + +#define FW_EQ_ETH_CMD_EQID(x) ((x) << 0) +#define FW_EQ_ETH_CMD_EQID_GET(x) (((x) >> 0) & 0xfffff) +#define FW_EQ_ETH_CMD_PHYSEQID(x) ((x) << 0) +#define FW_EQ_ETH_CMD_PHYSEQID_GET(x) (((x) >> 0) & 0xfffff) + +#define FW_EQ_ETH_CMD_FETCHSZM(x) ((x) << 26) +#define FW_EQ_ETH_CMD_STATUSPGNS(x) ((x) << 25) +#define FW_EQ_ETH_CMD_STATUSPGRO(x) ((x) << 24) +#define FW_EQ_ETH_CMD_FETCHNS(x) ((x) << 23) +#define FW_EQ_ETH_CMD_FETCHRO(x) ((x) << 22) +#define FW_EQ_ETH_CMD_HOSTFCMODE(x) ((x) << 20) +#define FW_EQ_ETH_CMD_CPRIO(x) ((x) << 19) +#define FW_EQ_ETH_CMD_ONCHIP(x) ((x) << 18) +#define FW_EQ_ETH_CMD_PCIECHN(x) ((x) << 16) +#define FW_EQ_ETH_CMD_IQID(x) ((x) << 0) + +#define FW_EQ_ETH_CMD_DCAEN(x) ((x) << 31) +#define FW_EQ_ETH_CMD_DCACPU(x) ((x) << 26) +#define FW_EQ_ETH_CMD_FBMIN(x) ((x) << 23) +#define FW_EQ_ETH_CMD_FBMAX(x) ((x) << 20) +#define FW_EQ_ETH_CMD_CIDXFTHRESHO(x) ((x) << 19) +#define FW_EQ_ETH_CMD_CIDXFTHRESH(x) ((x) << 16) +#define FW_EQ_ETH_CMD_EQSIZE(x) ((x) << 0) + +#define FW_EQ_ETH_CMD_VIID(x) ((x) << 16) + +struct fw_eq_ctrl_cmd { + __be32 op_to_vfn; + __be32 alloc_to_len16; + __be32 cmpliqid_eqid; + __be32 physeqid_pkd; + __be32 fetchszm_to_iqid; + __be32 dcaen_to_eqsize; + __be64 eqaddr; +}; + +#define FW_EQ_CTRL_CMD_PFN(x) ((x) << 8) +#define FW_EQ_CTRL_CMD_VFN(x) ((x) << 0) + +#define FW_EQ_CTRL_CMD_ALLOC (1U << 31) +#define FW_EQ_CTRL_CMD_FREE (1U << 30) +#define FW_EQ_CTRL_CMD_MODIFY (1U << 29) +#define FW_EQ_CTRL_CMD_EQSTART (1U << 28) +#define FW_EQ_CTRL_CMD_EQSTOP (1U << 27) + +#define FW_EQ_CTRL_CMD_CMPLIQID(x) ((x) << 20) +#define FW_EQ_CTRL_CMD_EQID(x) ((x) << 0) +#define FW_EQ_CTRL_CMD_EQID_GET(x) (((x) >> 0) & 0xfffff) +#define FW_EQ_CTRL_CMD_PHYSEQID_GET(x) (((x) >> 0) & 0xfffff) + +#define FW_EQ_CTRL_CMD_FETCHSZM (1U << 26) +#define FW_EQ_CTRL_CMD_STATUSPGNS (1U << 25) +#define FW_EQ_CTRL_CMD_STATUSPGRO (1U << 24) +#define FW_EQ_CTRL_CMD_FETCHNS (1U << 23) +#define FW_EQ_CTRL_CMD_FETCHRO (1U << 22) +#define FW_EQ_CTRL_CMD_HOSTFCMODE(x) ((x) << 20) +#define FW_EQ_CTRL_CMD_CPRIO(x) ((x) << 19) +#define FW_EQ_CTRL_CMD_ONCHIP(x) ((x) << 18) +#define FW_EQ_CTRL_CMD_PCIECHN(x) ((x) << 16) +#define FW_EQ_CTRL_CMD_IQID(x) ((x) << 0) + +#define FW_EQ_CTRL_CMD_DCAEN(x) ((x) << 31) +#define FW_EQ_CTRL_CMD_DCACPU(x) ((x) << 26) +#define FW_EQ_CTRL_CMD_FBMIN(x) ((x) << 23) +#define FW_EQ_CTRL_CMD_FBMAX(x) ((x) << 20) +#define FW_EQ_CTRL_CMD_CIDXFTHRESHO(x) ((x) << 19) +#define FW_EQ_CTRL_CMD_CIDXFTHRESH(x) ((x) << 16) +#define FW_EQ_CTRL_CMD_EQSIZE(x) ((x) << 0) + +struct fw_eq_ofld_cmd { + __be32 op_to_vfn; + __be32 alloc_to_len16; + __be32 eqid_pkd; + __be32 physeqid_pkd; + __be32 fetchszm_to_iqid; + __be32 dcaen_to_eqsize; + __be64 eqaddr; +}; + +#define FW_EQ_OFLD_CMD_PFN(x) ((x) << 8) +#define FW_EQ_OFLD_CMD_VFN(x) ((x) << 0) + +#define FW_EQ_OFLD_CMD_ALLOC (1U << 31) +#define FW_EQ_OFLD_CMD_FREE (1U << 30) +#define FW_EQ_OFLD_CMD_MODIFY (1U << 29) +#define FW_EQ_OFLD_CMD_EQSTART (1U << 28) +#define FW_EQ_OFLD_CMD_EQSTOP (1U << 27) + +#define FW_EQ_OFLD_CMD_EQID(x) ((x) << 0) +#define FW_EQ_OFLD_CMD_EQID_GET(x) (((x) >> 0) & 0xfffff) +#define FW_EQ_OFLD_CMD_PHYSEQID_GET(x) (((x) >> 0) & 0xfffff) + +#define FW_EQ_OFLD_CMD_FETCHSZM(x) ((x) << 26) +#define FW_EQ_OFLD_CMD_STATUSPGNS(x) ((x) << 25) +#define FW_EQ_OFLD_CMD_STATUSPGRO(x) ((x) << 24) +#define FW_EQ_OFLD_CMD_FETCHNS(x) ((x) << 23) +#define FW_EQ_OFLD_CMD_FETCHRO(x) ((x) << 22) +#define FW_EQ_OFLD_CMD_HOSTFCMODE(x) ((x) << 20) +#define FW_EQ_OFLD_CMD_CPRIO(x) ((x) << 19) +#define FW_EQ_OFLD_CMD_ONCHIP(x) ((x) << 18) +#define FW_EQ_OFLD_CMD_PCIECHN(x) ((x) << 16) +#define FW_EQ_OFLD_CMD_IQID(x) ((x) << 0) + +#define FW_EQ_OFLD_CMD_DCAEN(x) ((x) << 31) +#define FW_EQ_OFLD_CMD_DCACPU(x) ((x) << 26) +#define FW_EQ_OFLD_CMD_FBMIN(x) ((x) << 23) +#define FW_EQ_OFLD_CMD_FBMAX(x) ((x) << 20) +#define FW_EQ_OFLD_CMD_CIDXFTHRESHO(x) ((x) << 19) +#define FW_EQ_OFLD_CMD_CIDXFTHRESH(x) ((x) << 16) +#define FW_EQ_OFLD_CMD_EQSIZE(x) ((x) << 0) + +/* + * Macros for VIID parsing: + * VIID - [10:8] PFN, [7] VI Valid, [6:0] VI number + */ +#define FW_VIID_PFN_GET(x) (((x) >> 8) & 0x7) +#define FW_VIID_VIVLD_GET(x) (((x) >> 7) & 0x1) +#define FW_VIID_VIN_GET(x) (((x) >> 0) & 0x7F) + +struct fw_vi_cmd { + __be32 op_to_vfn; + __be32 alloc_to_len16; + __be16 type_viid; + u8 mac[6]; + u8 portid_pkd; + u8 nmac; + u8 nmac0[6]; + __be16 rsssize_pkd; + u8 nmac1[6]; + __be16 idsiiq_pkd; + u8 nmac2[6]; + __be16 idseiq_pkd; + u8 nmac3[6]; + __be64 r9; + __be64 r10; +}; + +#define FW_VI_CMD_PFN(x) ((x) << 8) +#define FW_VI_CMD_VFN(x) ((x) << 0) +#define FW_VI_CMD_ALLOC (1U << 31) +#define FW_VI_CMD_FREE (1U << 30) +#define FW_VI_CMD_VIID(x) ((x) << 0) +#define FW_VI_CMD_VIID_GET(x) ((x) & 0xfff) +#define FW_VI_CMD_PORTID(x) ((x) << 4) +#define FW_VI_CMD_PORTID_GET(x) (((x) >> 4) & 0xf) +#define FW_VI_CMD_RSSSIZE_GET(x) (((x) >> 0) & 0x7ff) + +/* Special VI_MAC command index ids */ +#define FW_VI_MAC_ADD_MAC 0x3FF +#define FW_VI_MAC_ADD_PERSIST_MAC 0x3FE +#define FW_VI_MAC_MAC_BASED_FREE 0x3FD +#define FW_CLS_TCAM_NUM_ENTRIES 336 + +enum fw_vi_mac_smac { + FW_VI_MAC_MPS_TCAM_ENTRY, + FW_VI_MAC_MPS_TCAM_ONLY, + FW_VI_MAC_SMT_ONLY, + FW_VI_MAC_SMT_AND_MPSTCAM +}; + +enum fw_vi_mac_result { + FW_VI_MAC_R_SUCCESS, + FW_VI_MAC_R_F_NONEXISTENT_NOMEM, + FW_VI_MAC_R_SMAC_FAIL, + FW_VI_MAC_R_F_ACL_CHECK +}; + +struct fw_vi_mac_cmd { + __be32 op_to_viid; + __be32 freemacs_to_len16; + union fw_vi_mac { + struct fw_vi_mac_exact { + __be16 valid_to_idx; + u8 macaddr[6]; + } exact[7]; + struct fw_vi_mac_hash { + __be64 hashvec; + } hash; + } u; +}; + +#define FW_VI_MAC_CMD_VIID(x) ((x) << 0) +#define FW_VI_MAC_CMD_FREEMACS(x) ((x) << 31) +#define FW_VI_MAC_CMD_HASHVECEN (1U << 23) +#define FW_VI_MAC_CMD_HASHUNIEN(x) ((x) << 22) +#define FW_VI_MAC_CMD_VALID (1U << 15) +#define FW_VI_MAC_CMD_PRIO(x) ((x) << 12) +#define FW_VI_MAC_CMD_SMAC_RESULT(x) ((x) << 10) +#define FW_VI_MAC_CMD_SMAC_RESULT_GET(x) (((x) >> 10) & 0x3) +#define FW_VI_MAC_CMD_IDX(x) ((x) << 0) +#define FW_VI_MAC_CMD_IDX_GET(x) (((x) >> 0) & 0x3ff) + +#define FW_RXMODE_MTU_NO_CHG 65535 + +struct fw_vi_rxmode_cmd { + __be32 op_to_viid; + __be32 retval_len16; + __be32 mtu_to_vlanexen; + __be32 r4_lo; +}; + +#define FW_VI_RXMODE_CMD_VIID(x) ((x) << 0) +#define FW_VI_RXMODE_CMD_MTU_MASK 0xffff +#define FW_VI_RXMODE_CMD_MTU(x) ((x) << 16) +#define FW_VI_RXMODE_CMD_PROMISCEN_MASK 0x3 +#define FW_VI_RXMODE_CMD_PROMISCEN(x) ((x) << 14) +#define FW_VI_RXMODE_CMD_ALLMULTIEN_MASK 0x3 +#define FW_VI_RXMODE_CMD_ALLMULTIEN(x) ((x) << 12) +#define FW_VI_RXMODE_CMD_BROADCASTEN_MASK 0x3 +#define FW_VI_RXMODE_CMD_BROADCASTEN(x) ((x) << 10) +#define FW_VI_RXMODE_CMD_VLANEXEN_MASK 0x3 +#define FW_VI_RXMODE_CMD_VLANEXEN(x) ((x) << 8) + +struct fw_vi_enable_cmd { + __be32 op_to_viid; + __be32 ien_to_len16; + __be16 blinkdur; + __be16 r3; + __be32 r4; +}; + +#define FW_VI_ENABLE_CMD_VIID(x) ((x) << 0) +#define FW_VI_ENABLE_CMD_IEN(x) ((x) << 31) +#define FW_VI_ENABLE_CMD_EEN(x) ((x) << 30) +#define FW_VI_ENABLE_CMD_LED (1U << 29) + +/* VI VF stats offset definitions */ +#define VI_VF_NUM_STATS 16 +enum fw_vi_stats_vf_index { + FW_VI_VF_STAT_TX_BCAST_BYTES_IX, + FW_VI_VF_STAT_TX_BCAST_FRAMES_IX, + FW_VI_VF_STAT_TX_MCAST_BYTES_IX, + FW_VI_VF_STAT_TX_MCAST_FRAMES_IX, + FW_VI_VF_STAT_TX_UCAST_BYTES_IX, + FW_VI_VF_STAT_TX_UCAST_FRAMES_IX, + FW_VI_VF_STAT_TX_DROP_FRAMES_IX, + FW_VI_VF_STAT_TX_OFLD_BYTES_IX, + FW_VI_VF_STAT_TX_OFLD_FRAMES_IX, + FW_VI_VF_STAT_RX_BCAST_BYTES_IX, + FW_VI_VF_STAT_RX_BCAST_FRAMES_IX, + FW_VI_VF_STAT_RX_MCAST_BYTES_IX, + FW_VI_VF_STAT_RX_MCAST_FRAMES_IX, + FW_VI_VF_STAT_RX_UCAST_BYTES_IX, + FW_VI_VF_STAT_RX_UCAST_FRAMES_IX, + FW_VI_VF_STAT_RX_ERR_FRAMES_IX +}; + +/* VI PF stats offset definitions */ +#define VI_PF_NUM_STATS 17 +enum fw_vi_stats_pf_index { + FW_VI_PF_STAT_TX_BCAST_BYTES_IX, + FW_VI_PF_STAT_TX_BCAST_FRAMES_IX, + FW_VI_PF_STAT_TX_MCAST_BYTES_IX, + FW_VI_PF_STAT_TX_MCAST_FRAMES_IX, + FW_VI_PF_STAT_TX_UCAST_BYTES_IX, + FW_VI_PF_STAT_TX_UCAST_FRAMES_IX, + FW_VI_PF_STAT_TX_OFLD_BYTES_IX, + FW_VI_PF_STAT_TX_OFLD_FRAMES_IX, + FW_VI_PF_STAT_RX_BYTES_IX, + FW_VI_PF_STAT_RX_FRAMES_IX, + FW_VI_PF_STAT_RX_BCAST_BYTES_IX, + FW_VI_PF_STAT_RX_BCAST_FRAMES_IX, + FW_VI_PF_STAT_RX_MCAST_BYTES_IX, + FW_VI_PF_STAT_RX_MCAST_FRAMES_IX, + FW_VI_PF_STAT_RX_UCAST_BYTES_IX, + FW_VI_PF_STAT_RX_UCAST_FRAMES_IX, + FW_VI_PF_STAT_RX_ERR_FRAMES_IX +}; + +struct fw_vi_stats_cmd { + __be32 op_to_viid; + __be32 retval_len16; + union fw_vi_stats { + struct fw_vi_stats_ctl { + __be16 nstats_ix; + __be16 r6; + __be32 r7; + __be64 stat0; + __be64 stat1; + __be64 stat2; + __be64 stat3; + __be64 stat4; + __be64 stat5; + } ctl; + struct fw_vi_stats_pf { + __be64 tx_bcast_bytes; + __be64 tx_bcast_frames; + __be64 tx_mcast_bytes; + __be64 tx_mcast_frames; + __be64 tx_ucast_bytes; + __be64 tx_ucast_frames; + __be64 tx_offload_bytes; + __be64 tx_offload_frames; + __be64 rx_pf_bytes; + __be64 rx_pf_frames; + __be64 rx_bcast_bytes; + __be64 rx_bcast_frames; + __be64 rx_mcast_bytes; + __be64 rx_mcast_frames; + __be64 rx_ucast_bytes; + __be64 rx_ucast_frames; + __be64 rx_err_frames; + } pf; + struct fw_vi_stats_vf { + __be64 tx_bcast_bytes; + __be64 tx_bcast_frames; + __be64 tx_mcast_bytes; + __be64 tx_mcast_frames; + __be64 tx_ucast_bytes; + __be64 tx_ucast_frames; + __be64 tx_drop_frames; + __be64 tx_offload_bytes; + __be64 tx_offload_frames; + __be64 rx_bcast_bytes; + __be64 rx_bcast_frames; + __be64 rx_mcast_bytes; + __be64 rx_mcast_frames; + __be64 rx_ucast_bytes; + __be64 rx_ucast_frames; + __be64 rx_err_frames; + } vf; + } u; +}; + +#define FW_VI_STATS_CMD_VIID(x) ((x) << 0) +#define FW_VI_STATS_CMD_NSTATS(x) ((x) << 12) +#define FW_VI_STATS_CMD_IX(x) ((x) << 0) + +struct fw_acl_mac_cmd { + __be32 op_to_vfn; + __be32 en_to_len16; + u8 nmac; + u8 r3[7]; + __be16 r4; + u8 macaddr0[6]; + __be16 r5; + u8 macaddr1[6]; + __be16 r6; + u8 macaddr2[6]; + __be16 r7; + u8 macaddr3[6]; +}; + +#define FW_ACL_MAC_CMD_PFN(x) ((x) << 8) +#define FW_ACL_MAC_CMD_VFN(x) ((x) << 0) +#define FW_ACL_MAC_CMD_EN(x) ((x) << 31) + +struct fw_acl_vlan_cmd { + __be32 op_to_vfn; + __be32 en_to_len16; + u8 nvlan; + u8 dropnovlan_fm; + u8 r3_lo[6]; + __be16 vlanid[16]; +}; + +#define FW_ACL_VLAN_CMD_PFN(x) ((x) << 8) +#define FW_ACL_VLAN_CMD_VFN(x) ((x) << 0) +#define FW_ACL_VLAN_CMD_EN(x) ((x) << 31) +#define FW_ACL_VLAN_CMD_DROPNOVLAN(x) ((x) << 7) +#define FW_ACL_VLAN_CMD_FM(x) ((x) << 6) + +enum fw_port_cap { + FW_PORT_CAP_SPEED_100M = 0x0001, + FW_PORT_CAP_SPEED_1G = 0x0002, + FW_PORT_CAP_SPEED_2_5G = 0x0004, + FW_PORT_CAP_SPEED_10G = 0x0008, + FW_PORT_CAP_SPEED_40G = 0x0010, + FW_PORT_CAP_SPEED_100G = 0x0020, + FW_PORT_CAP_FC_RX = 0x0040, + FW_PORT_CAP_FC_TX = 0x0080, + FW_PORT_CAP_ANEG = 0x0100, + FW_PORT_CAP_MDI_0 = 0x0200, + FW_PORT_CAP_MDI_1 = 0x0400, + FW_PORT_CAP_BEAN = 0x0800, + FW_PORT_CAP_PMA_LPBK = 0x1000, + FW_PORT_CAP_PCS_LPBK = 0x2000, + FW_PORT_CAP_PHYXS_LPBK = 0x4000, + FW_PORT_CAP_FAR_END_LPBK = 0x8000, +}; + +enum fw_port_mdi { + FW_PORT_MDI_UNCHANGED, + FW_PORT_MDI_AUTO, + FW_PORT_MDI_F_STRAIGHT, + FW_PORT_MDI_F_CROSSOVER +}; + +#define FW_PORT_MDI(x) ((x) << 9) + +enum fw_port_action { + FW_PORT_ACTION_L1_CFG = 0x0001, + FW_PORT_ACTION_L2_CFG = 0x0002, + FW_PORT_ACTION_GET_PORT_INFO = 0x0003, + FW_PORT_ACTION_L2_PPP_CFG = 0x0004, + FW_PORT_ACTION_L2_DCB_CFG = 0x0005, + FW_PORT_ACTION_LOW_PWR_TO_NORMAL = 0x0010, + FW_PORT_ACTION_L1_LOW_PWR_EN = 0x0011, + FW_PORT_ACTION_L2_WOL_MODE_EN = 0x0012, + FW_PORT_ACTION_LPBK_TO_NORMAL = 0x0020, + FW_PORT_ACTION_L1_LPBK = 0x0021, + FW_PORT_ACTION_L1_PMA_LPBK = 0x0022, + FW_PORT_ACTION_L1_PCS_LPBK = 0x0023, + FW_PORT_ACTION_L1_PHYXS_CSIDE_LPBK = 0x0024, + FW_PORT_ACTION_L1_PHYXS_ESIDE_LPBK = 0x0025, + FW_PORT_ACTION_PHY_RESET = 0x0040, + FW_PORT_ACTION_PMA_RESET = 0x0041, + FW_PORT_ACTION_PCS_RESET = 0x0042, + FW_PORT_ACTION_PHYXS_RESET = 0x0043, + FW_PORT_ACTION_DTEXS_REEST = 0x0044, + FW_PORT_ACTION_AN_RESET = 0x0045 +}; + +enum fw_port_l2cfg_ctlbf { + FW_PORT_L2_CTLBF_OVLAN0 = 0x01, + FW_PORT_L2_CTLBF_OVLAN1 = 0x02, + FW_PORT_L2_CTLBF_OVLAN2 = 0x04, + FW_PORT_L2_CTLBF_OVLAN3 = 0x08, + FW_PORT_L2_CTLBF_IVLAN = 0x10, + FW_PORT_L2_CTLBF_TXIPG = 0x20 +}; + +enum fw_port_dcb_cfg { + FW_PORT_DCB_CFG_PG = 0x01, + FW_PORT_DCB_CFG_PFC = 0x02, + FW_PORT_DCB_CFG_APPL = 0x04 +}; + +enum fw_port_dcb_cfg_rc { + FW_PORT_DCB_CFG_SUCCESS = 0x0, + FW_PORT_DCB_CFG_ERROR = 0x1 +}; + +enum fw_port_dcb_type { + FW_PORT_DCB_TYPE_PGID = 0x00, + FW_PORT_DCB_TYPE_PGRATE = 0x01, + FW_PORT_DCB_TYPE_PRIORATE = 0x02, + FW_PORT_DCB_TYPE_PFC = 0x03, + FW_PORT_DCB_TYPE_APP_ID = 0x04, +}; + +struct fw_port_cmd { + __be32 op_to_portid; + __be32 action_to_len16; + union fw_port { + struct fw_port_l1cfg { + __be32 rcap; + __be32 r; + } l1cfg; + struct fw_port_l2cfg { + __be16 ctlbf_to_ivlan0; + __be16 ivlantype; + __be32 txipg_pkd; + __be16 ovlan0mask; + __be16 ovlan0type; + __be16 ovlan1mask; + __be16 ovlan1type; + __be16 ovlan2mask; + __be16 ovlan2type; + __be16 ovlan3mask; + __be16 ovlan3type; + } l2cfg; + struct fw_port_info { + __be32 lstatus_to_modtype; + __be16 pcap; + __be16 acap; + __be16 mtu; + __u8 cbllen; + __u8 r9; + __be32 r10; + __be64 r11; + } info; + struct fw_port_ppp { + __be32 pppen_to_ncsich; + __be32 r11; + } ppp; + struct fw_port_dcb { + __be16 cfg; + u8 up_map; + u8 sf_cfgrc; + __be16 prot_ix; + u8 pe7_to_pe0; + u8 numTCPFCs; + __be32 pgid0_to_pgid7; + __be32 numTCs_oui; + u8 pgpc[8]; + } dcb; + } u; +}; + +#define FW_PORT_CMD_READ (1U << 22) + +#define FW_PORT_CMD_PORTID(x) ((x) << 0) +#define FW_PORT_CMD_PORTID_GET(x) (((x) >> 0) & 0xf) + +#define FW_PORT_CMD_ACTION(x) ((x) << 16) +#define FW_PORT_CMD_ACTION_GET(x) (((x) >> 16) & 0xffff) + +#define FW_PORT_CMD_CTLBF(x) ((x) << 10) +#define FW_PORT_CMD_OVLAN3(x) ((x) << 7) +#define FW_PORT_CMD_OVLAN2(x) ((x) << 6) +#define FW_PORT_CMD_OVLAN1(x) ((x) << 5) +#define FW_PORT_CMD_OVLAN0(x) ((x) << 4) +#define FW_PORT_CMD_IVLAN0(x) ((x) << 3) + +#define FW_PORT_CMD_TXIPG(x) ((x) << 19) + +#define FW_PORT_CMD_LSTATUS (1U << 31) +#define FW_PORT_CMD_LSTATUS_GET(x) (((x) >> 31) & 0x1) +#define FW_PORT_CMD_LSPEED(x) ((x) << 24) +#define FW_PORT_CMD_LSPEED_GET(x) (((x) >> 24) & 0x3f) +#define FW_PORT_CMD_TXPAUSE (1U << 23) +#define FW_PORT_CMD_RXPAUSE (1U << 22) +#define FW_PORT_CMD_MDIOCAP (1U << 21) +#define FW_PORT_CMD_MDIOADDR_GET(x) (((x) >> 16) & 0x1f) +#define FW_PORT_CMD_LPTXPAUSE (1U << 15) +#define FW_PORT_CMD_LPRXPAUSE (1U << 14) +#define FW_PORT_CMD_PTYPE_MASK 0x1f +#define FW_PORT_CMD_PTYPE_GET(x) (((x) >> 8) & FW_PORT_CMD_PTYPE_MASK) +#define FW_PORT_CMD_MODTYPE_MASK 0x1f +#define FW_PORT_CMD_MODTYPE_GET(x) (((x) >> 0) & FW_PORT_CMD_MODTYPE_MASK) + +#define FW_PORT_CMD_PPPEN(x) ((x) << 31) +#define FW_PORT_CMD_TPSRC(x) ((x) << 28) +#define FW_PORT_CMD_NCSISRC(x) ((x) << 24) + +#define FW_PORT_CMD_CH0(x) ((x) << 20) +#define FW_PORT_CMD_CH1(x) ((x) << 16) +#define FW_PORT_CMD_CH2(x) ((x) << 12) +#define FW_PORT_CMD_CH3(x) ((x) << 8) +#define FW_PORT_CMD_NCSICH(x) ((x) << 4) + +enum fw_port_type { + FW_PORT_TYPE_FIBER_XFI, + FW_PORT_TYPE_FIBER_XAUI, + FW_PORT_TYPE_BT_SGMII, + FW_PORT_TYPE_BT_XFI, + FW_PORT_TYPE_BT_XAUI, + FW_PORT_TYPE_KX4, + FW_PORT_TYPE_CX4, + FW_PORT_TYPE_KX, + FW_PORT_TYPE_KR, + FW_PORT_TYPE_SFP, + FW_PORT_TYPE_BP_AP, + FW_PORT_TYPE_BP4_AP, + FW_PORT_TYPE_QSFP_10G, + FW_PORT_TYPE_QSFP, + FW_PORT_TYPE_BP40_BA, + + FW_PORT_TYPE_NONE = FW_PORT_CMD_PTYPE_MASK +}; + +enum fw_port_module_type { + FW_PORT_MOD_TYPE_NA, + FW_PORT_MOD_TYPE_LR, + FW_PORT_MOD_TYPE_SR, + FW_PORT_MOD_TYPE_ER, + FW_PORT_MOD_TYPE_TWINAX_PASSIVE, + FW_PORT_MOD_TYPE_TWINAX_ACTIVE, + FW_PORT_MOD_TYPE_LRM, + FW_PORT_MOD_TYPE_ERROR = FW_PORT_CMD_MODTYPE_MASK - 3, + FW_PORT_MOD_TYPE_UNKNOWN = FW_PORT_CMD_MODTYPE_MASK - 2, + FW_PORT_MOD_TYPE_NOTSUPPORTED = FW_PORT_CMD_MODTYPE_MASK - 1, + + FW_PORT_MOD_TYPE_NONE = FW_PORT_CMD_MODTYPE_MASK +}; + +enum fw_port_mod_sub_type { + FW_PORT_MOD_SUB_TYPE_NA, + FW_PORT_MOD_SUB_TYPE_MV88E114X = 0x1, + FW_PORT_MOD_SUB_TYPE_TN8022 = 0x2, + FW_PORT_MOD_SUB_TYPE_AQ1202 = 0x3, + FW_PORT_MOD_SUB_TYPE_88x3120 = 0x4, + FW_PORT_MOD_SUB_TYPE_BCM84834 = 0x5, + FW_PORT_MOD_SUB_TYPE_BT_VSC8634 = 0x8, + + /* The following will never been in the VPD. They are TWINAX cable + * lengths decoded from SFP+ module i2c PROMs. These should + * almost certainly go somewhere else ... + */ + FW_PORT_MOD_SUB_TYPE_TWINAX_1 = 0x9, + FW_PORT_MOD_SUB_TYPE_TWINAX_3 = 0xA, + FW_PORT_MOD_SUB_TYPE_TWINAX_5 = 0xB, + FW_PORT_MOD_SUB_TYPE_TWINAX_7 = 0xC, +}; + +/* port stats */ +#define FW_NUM_PORT_STATS 50 +#define FW_NUM_PORT_TX_STATS 23 +#define FW_NUM_PORT_RX_STATS 27 + +enum fw_port_stats_tx_index { + FW_STAT_TX_PORT_BYTES_IX, + FW_STAT_TX_PORT_FRAMES_IX, + FW_STAT_TX_PORT_BCAST_IX, + FW_STAT_TX_PORT_MCAST_IX, + FW_STAT_TX_PORT_UCAST_IX, + FW_STAT_TX_PORT_ERROR_IX, + FW_STAT_TX_PORT_64B_IX, + FW_STAT_TX_PORT_65B_127B_IX, + FW_STAT_TX_PORT_128B_255B_IX, + FW_STAT_TX_PORT_256B_511B_IX, + FW_STAT_TX_PORT_512B_1023B_IX, + FW_STAT_TX_PORT_1024B_1518B_IX, + FW_STAT_TX_PORT_1519B_MAX_IX, + FW_STAT_TX_PORT_DROP_IX, + FW_STAT_TX_PORT_PAUSE_IX, + FW_STAT_TX_PORT_PPP0_IX, + FW_STAT_TX_PORT_PPP1_IX, + FW_STAT_TX_PORT_PPP2_IX, + FW_STAT_TX_PORT_PPP3_IX, + FW_STAT_TX_PORT_PPP4_IX, + FW_STAT_TX_PORT_PPP5_IX, + FW_STAT_TX_PORT_PPP6_IX, + FW_STAT_TX_PORT_PPP7_IX +}; + +enum fw_port_stat_rx_index { + FW_STAT_RX_PORT_BYTES_IX, + FW_STAT_RX_PORT_FRAMES_IX, + FW_STAT_RX_PORT_BCAST_IX, + FW_STAT_RX_PORT_MCAST_IX, + FW_STAT_RX_PORT_UCAST_IX, + FW_STAT_RX_PORT_MTU_ERROR_IX, + FW_STAT_RX_PORT_MTU_CRC_ERROR_IX, + FW_STAT_RX_PORT_CRC_ERROR_IX, + FW_STAT_RX_PORT_LEN_ERROR_IX, + FW_STAT_RX_PORT_SYM_ERROR_IX, + FW_STAT_RX_PORT_64B_IX, + FW_STAT_RX_PORT_65B_127B_IX, + FW_STAT_RX_PORT_128B_255B_IX, + FW_STAT_RX_PORT_256B_511B_IX, + FW_STAT_RX_PORT_512B_1023B_IX, + FW_STAT_RX_PORT_1024B_1518B_IX, + FW_STAT_RX_PORT_1519B_MAX_IX, + FW_STAT_RX_PORT_PAUSE_IX, + FW_STAT_RX_PORT_PPP0_IX, + FW_STAT_RX_PORT_PPP1_IX, + FW_STAT_RX_PORT_PPP2_IX, + FW_STAT_RX_PORT_PPP3_IX, + FW_STAT_RX_PORT_PPP4_IX, + FW_STAT_RX_PORT_PPP5_IX, + FW_STAT_RX_PORT_PPP6_IX, + FW_STAT_RX_PORT_PPP7_IX, + FW_STAT_RX_PORT_LESS_64B_IX +}; + +struct fw_port_stats_cmd { + __be32 op_to_portid; + __be32 retval_len16; + union fw_port_stats { + struct fw_port_stats_ctl { + u8 nstats_bg_bm; + u8 tx_ix; + __be16 r6; + __be32 r7; + __be64 stat0; + __be64 stat1; + __be64 stat2; + __be64 stat3; + __be64 stat4; + __be64 stat5; + } ctl; + struct fw_port_stats_all { + __be64 tx_bytes; + __be64 tx_frames; + __be64 tx_bcast; + __be64 tx_mcast; + __be64 tx_ucast; + __be64 tx_error; + __be64 tx_64b; + __be64 tx_65b_127b; + __be64 tx_128b_255b; + __be64 tx_256b_511b; + __be64 tx_512b_1023b; + __be64 tx_1024b_1518b; + __be64 tx_1519b_max; + __be64 tx_drop; + __be64 tx_pause; + __be64 tx_ppp0; + __be64 tx_ppp1; + __be64 tx_ppp2; + __be64 tx_ppp3; + __be64 tx_ppp4; + __be64 tx_ppp5; + __be64 tx_ppp6; + __be64 tx_ppp7; + __be64 rx_bytes; + __be64 rx_frames; + __be64 rx_bcast; + __be64 rx_mcast; + __be64 rx_ucast; + __be64 rx_mtu_error; + __be64 rx_mtu_crc_error; + __be64 rx_crc_error; + __be64 rx_len_error; + __be64 rx_sym_error; + __be64 rx_64b; + __be64 rx_65b_127b; + __be64 rx_128b_255b; + __be64 rx_256b_511b; + __be64 rx_512b_1023b; + __be64 rx_1024b_1518b; + __be64 rx_1519b_max; + __be64 rx_pause; + __be64 rx_ppp0; + __be64 rx_ppp1; + __be64 rx_ppp2; + __be64 rx_ppp3; + __be64 rx_ppp4; + __be64 rx_ppp5; + __be64 rx_ppp6; + __be64 rx_ppp7; + __be64 rx_less_64b; + __be64 rx_bg_drop; + __be64 rx_bg_trunc; + } all; + } u; +}; + +#define FW_PORT_STATS_CMD_NSTATS(x) ((x) << 4) +#define FW_PORT_STATS_CMD_BG_BM(x) ((x) << 0) +#define FW_PORT_STATS_CMD_TX(x) ((x) << 7) +#define FW_PORT_STATS_CMD_IX(x) ((x) << 0) + +/* port loopback stats */ +#define FW_NUM_LB_STATS 16 +enum fw_port_lb_stats_index { + FW_STAT_LB_PORT_BYTES_IX, + FW_STAT_LB_PORT_FRAMES_IX, + FW_STAT_LB_PORT_BCAST_IX, + FW_STAT_LB_PORT_MCAST_IX, + FW_STAT_LB_PORT_UCAST_IX, + FW_STAT_LB_PORT_ERROR_IX, + FW_STAT_LB_PORT_64B_IX, + FW_STAT_LB_PORT_65B_127B_IX, + FW_STAT_LB_PORT_128B_255B_IX, + FW_STAT_LB_PORT_256B_511B_IX, + FW_STAT_LB_PORT_512B_1023B_IX, + FW_STAT_LB_PORT_1024B_1518B_IX, + FW_STAT_LB_PORT_1519B_MAX_IX, + FW_STAT_LB_PORT_DROP_FRAMES_IX +}; + +struct fw_port_lb_stats_cmd { + __be32 op_to_lbport; + __be32 retval_len16; + union fw_port_lb_stats { + struct fw_port_lb_stats_ctl { + u8 nstats_bg_bm; + u8 ix_pkd; + __be16 r6; + __be32 r7; + __be64 stat0; + __be64 stat1; + __be64 stat2; + __be64 stat3; + __be64 stat4; + __be64 stat5; + } ctl; + struct fw_port_lb_stats_all { + __be64 tx_bytes; + __be64 tx_frames; + __be64 tx_bcast; + __be64 tx_mcast; + __be64 tx_ucast; + __be64 tx_error; + __be64 tx_64b; + __be64 tx_65b_127b; + __be64 tx_128b_255b; + __be64 tx_256b_511b; + __be64 tx_512b_1023b; + __be64 tx_1024b_1518b; + __be64 tx_1519b_max; + __be64 rx_lb_drop; + __be64 rx_lb_trunc; + } all; + } u; +}; + +#define FW_PORT_LB_STATS_CMD_LBPORT(x) ((x) << 0) +#define FW_PORT_LB_STATS_CMD_NSTATS(x) ((x) << 4) +#define FW_PORT_LB_STATS_CMD_BG_BM(x) ((x) << 0) +#define FW_PORT_LB_STATS_CMD_IX(x) ((x) << 0) + +struct fw_rss_ind_tbl_cmd { + __be32 op_to_viid; +#define FW_RSS_IND_TBL_CMD_VIID(x) ((x) << 0) + __be32 retval_len16; + __be16 niqid; + __be16 startidx; + __be32 r3; + __be32 iq0_to_iq2; +#define FW_RSS_IND_TBL_CMD_IQ0(x) ((x) << 20) +#define FW_RSS_IND_TBL_CMD_IQ1(x) ((x) << 10) +#define FW_RSS_IND_TBL_CMD_IQ2(x) ((x) << 0) + __be32 iq3_to_iq5; + __be32 iq6_to_iq8; + __be32 iq9_to_iq11; + __be32 iq12_to_iq14; + __be32 iq15_to_iq17; + __be32 iq18_to_iq20; + __be32 iq21_to_iq23; + __be32 iq24_to_iq26; + __be32 iq27_to_iq29; + __be32 iq30_iq31; + __be32 r15_lo; +}; + +struct fw_rss_glb_config_cmd { + __be32 op_to_write; + __be32 retval_len16; + union fw_rss_glb_config { + struct fw_rss_glb_config_manual { + __be32 mode_pkd; + __be32 r3; + __be64 r4; + __be64 r5; + } manual; + struct fw_rss_glb_config_basicvirtual { + __be32 mode_pkd; + __be32 synmapen_to_hashtoeplitz; +#define FW_RSS_GLB_CONFIG_CMD_SYNMAPEN (1U << 8) +#define FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6 (1U << 7) +#define FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6 (1U << 6) +#define FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4 (1U << 5) +#define FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4 (1U << 4) +#define FW_RSS_GLB_CONFIG_CMD_OFDMAPEN (1U << 3) +#define FW_RSS_GLB_CONFIG_CMD_TNLMAPEN (1U << 2) +#define FW_RSS_GLB_CONFIG_CMD_TNLALLLKP (1U << 1) +#define FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ (1U << 0) + __be64 r8; + __be64 r9; + } basicvirtual; + } u; +}; + +#define FW_RSS_GLB_CONFIG_CMD_MODE(x) ((x) << 28) +#define FW_RSS_GLB_CONFIG_CMD_MODE_GET(x) (((x) >> 28) & 0xf) + +#define FW_RSS_GLB_CONFIG_CMD_MODE_MANUAL 0 +#define FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL 1 + +struct fw_rss_vi_config_cmd { + __be32 op_to_viid; +#define FW_RSS_VI_CONFIG_CMD_VIID(x) ((x) << 0) + __be32 retval_len16; + union fw_rss_vi_config { + struct fw_rss_vi_config_manual { + __be64 r3; + __be64 r4; + __be64 r5; + } manual; + struct fw_rss_vi_config_basicvirtual { + __be32 r6; + __be32 defaultq_to_udpen; +#define FW_RSS_VI_CONFIG_CMD_DEFAULTQ(x) ((x) << 16) +#define FW_RSS_VI_CONFIG_CMD_DEFAULTQ_GET(x) (((x) >> 16) & 0x3ff) +#define FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN (1U << 4) +#define FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN (1U << 3) +#define FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN (1U << 2) +#define FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN (1U << 1) +#define FW_RSS_VI_CONFIG_CMD_UDPEN (1U << 0) + __be64 r9; + __be64 r10; + } basicvirtual; + } u; +}; + +struct fw_clip_cmd { + __be32 op_to_write; + __be32 alloc_to_len16; + __be64 ip_hi; + __be64 ip_lo; + __be32 r4[2]; +}; + +#define S_FW_CLIP_CMD_ALLOC 31 +#define M_FW_CLIP_CMD_ALLOC 0x1 +#define V_FW_CLIP_CMD_ALLOC(x) ((x) << S_FW_CLIP_CMD_ALLOC) +#define G_FW_CLIP_CMD_ALLOC(x) \ + (((x) >> S_FW_CLIP_CMD_ALLOC) & M_FW_CLIP_CMD_ALLOC) +#define F_FW_CLIP_CMD_ALLOC V_FW_CLIP_CMD_ALLOC(1U) + +#define S_FW_CLIP_CMD_FREE 30 +#define M_FW_CLIP_CMD_FREE 0x1 +#define V_FW_CLIP_CMD_FREE(x) ((x) << S_FW_CLIP_CMD_FREE) +#define G_FW_CLIP_CMD_FREE(x) \ + (((x) >> S_FW_CLIP_CMD_FREE) & M_FW_CLIP_CMD_FREE) +#define F_FW_CLIP_CMD_FREE V_FW_CLIP_CMD_FREE(1U) + +enum fw_error_type { + FW_ERROR_TYPE_EXCEPTION = 0x0, + FW_ERROR_TYPE_HWMODULE = 0x1, + FW_ERROR_TYPE_WR = 0x2, + FW_ERROR_TYPE_ACL = 0x3, +}; + +struct fw_error_cmd { + __be32 op_to_type; + __be32 len16_pkd; + union fw_error { + struct fw_error_exception { + __be32 info[6]; + } exception; + struct fw_error_hwmodule { + __be32 regaddr; + __be32 regval; + } hwmodule; + struct fw_error_wr { + __be16 cidx; + __be16 pfn_vfn; + __be32 eqid; + u8 wrhdr[16]; + } wr; + struct fw_error_acl { + __be16 cidx; + __be16 pfn_vfn; + __be32 eqid; + __be16 mv_pkd; + u8 val[6]; + __be64 r4; + } acl; + } u; +}; + +struct fw_debug_cmd { + __be32 op_type; +#define FW_DEBUG_CMD_TYPE_GET(x) ((x) & 0xff) + __be32 len16_pkd; + union fw_debug { + struct fw_debug_assert { + __be32 fcid; + __be32 line; + __be32 x; + __be32 y; + u8 filename_0_7[8]; + u8 filename_8_15[8]; + __be64 r3; + } assert; + struct fw_debug_prt { + __be16 dprtstridx; + __be16 r3[3]; + __be32 dprtstrparam0; + __be32 dprtstrparam1; + __be32 dprtstrparam2; + __be32 dprtstrparam3; + } prt; + } u; +}; + +#define FW_PCIE_FW_ERR (1U << 31) +#define FW_PCIE_FW_INIT (1U << 30) +#define FW_PCIE_FW_HALT (1U << 29) +#define FW_PCIE_FW_MASTER_VLD (1U << 15) +#define FW_PCIE_FW_MASTER_MASK 0x7 +#define FW_PCIE_FW_MASTER_SHIFT 12 +#define FW_PCIE_FW_MASTER(x) ((x) << FW_PCIE_FW_MASTER_SHIFT) +#define FW_PCIE_FW_MASTER_GET(x) (((x) >> FW_PCIE_FW_MASTER_SHIFT) & \ + FW_PCIE_FW_MASTER_MASK) + +struct fw_hdr { + u8 ver; + u8 chip; /* terminator chip type */ + __be16 len512; /* bin length in units of 512-bytes */ + __be32 fw_ver; /* firmware version */ + __be32 tp_microcode_ver; + u8 intfver_nic; + u8 intfver_vnic; + u8 intfver_ofld; + u8 intfver_ri; + u8 intfver_iscsipdu; + u8 intfver_iscsi; + u8 intfver_fcoepdu; + u8 intfver_fcoe; + __u32 reserved2; + __u32 reserved3; + __u32 reserved4; + __be32 flags; + __be32 reserved6[23]; +}; + +enum fw_hdr_chip { + FW_HDR_CHIP_T4, + FW_HDR_CHIP_T5 +}; + +#define FW_HDR_FW_VER_MAJOR_GET(x) (((x) >> 24) & 0xff) +#define FW_HDR_FW_VER_MINOR_GET(x) (((x) >> 16) & 0xff) +#define FW_HDR_FW_VER_MICRO_GET(x) (((x) >> 8) & 0xff) +#define FW_HDR_FW_VER_BUILD_GET(x) (((x) >> 0) & 0xff) + +enum fw_hdr_intfver { + FW_HDR_INTFVER_NIC = 0x00, + FW_HDR_INTFVER_VNIC = 0x00, + FW_HDR_INTFVER_OFLD = 0x00, + FW_HDR_INTFVER_RI = 0x00, + FW_HDR_INTFVER_ISCSIPDU = 0x00, + FW_HDR_INTFVER_ISCSI = 0x00, + FW_HDR_INTFVER_FCOEPDU = 0x00, + FW_HDR_INTFVER_FCOE = 0x00, +}; + +enum fw_hdr_flags { + FW_HDR_FLAGS_RESET_HALT = 0x00000001, +}; + +#endif /* _T4FW_INTERFACE_H_ */ |