diff options
Diffstat (limited to 'drivers/net/enic')
25 files changed, 0 insertions, 5550 deletions
diff --git a/drivers/net/enic/Makefile b/drivers/net/enic/Makefile deleted file mode 100644 index 391c3bce5b7..00000000000 --- a/drivers/net/enic/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -obj-$(CONFIG_ENIC) := enic.o - -enic-y := enic_main.o vnic_cq.o vnic_intr.o vnic_wq.o \ - enic_res.o vnic_dev.o vnic_rq.o - diff --git a/drivers/net/enic/cq_desc.h b/drivers/net/enic/cq_desc.h deleted file mode 100644 index 1eb289f773b..00000000000 --- a/drivers/net/enic/cq_desc.h +++ /dev/null @@ -1,80 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _CQ_DESC_H_ -#define _CQ_DESC_H_ - -/* - * Completion queue descriptor types - */ -enum cq_desc_types { - CQ_DESC_TYPE_WQ_ENET = 0, - CQ_DESC_TYPE_DESC_COPY = 1, - CQ_DESC_TYPE_WQ_EXCH = 2, - CQ_DESC_TYPE_RQ_ENET = 3, - CQ_DESC_TYPE_RQ_FCP = 4, -}; - -/* Completion queue descriptor: 16B - * - * All completion queues have this basic layout. The - * type_specfic area is unique for each completion - * queue type. - */ -struct cq_desc { - __le16 completed_index; - __le16 q_number; - u8 type_specfic[11]; - u8 type_color; -}; - -#define CQ_DESC_TYPE_BITS 4 -#define CQ_DESC_TYPE_MASK ((1 << CQ_DESC_TYPE_BITS) - 1) -#define CQ_DESC_COLOR_MASK 1 -#define CQ_DESC_COLOR_SHIFT 7 -#define CQ_DESC_Q_NUM_BITS 10 -#define CQ_DESC_Q_NUM_MASK ((1 << CQ_DESC_Q_NUM_BITS) - 1) -#define CQ_DESC_COMP_NDX_BITS 12 -#define CQ_DESC_COMP_NDX_MASK ((1 << CQ_DESC_COMP_NDX_BITS) - 1) - -static inline void cq_desc_dec(const struct cq_desc *desc_arg, - u8 *type, u8 *color, u16 *q_number, u16 *completed_index) -{ - const struct cq_desc *desc = desc_arg; - const u8 type_color = desc->type_color; - - *color = (type_color >> CQ_DESC_COLOR_SHIFT) & CQ_DESC_COLOR_MASK; - - /* - * Make sure color bit is read from desc *before* other fields - * are read from desc. Hardware guarantees color bit is last - * bit (byte) written. Adding the rmb() prevents the compiler - * and/or CPU from reordering the reads which would potentially - * result in reading stale values. - */ - - rmb(); - - *type = type_color & CQ_DESC_TYPE_MASK; - *q_number = le16_to_cpu(desc->q_number) & CQ_DESC_Q_NUM_MASK; - *completed_index = le16_to_cpu(desc->completed_index) & - CQ_DESC_COMP_NDX_MASK; -} - -#endif /* _CQ_DESC_H_ */ diff --git a/drivers/net/enic/cq_enet_desc.h b/drivers/net/enic/cq_enet_desc.h deleted file mode 100644 index 03dce9ed612..00000000000 --- a/drivers/net/enic/cq_enet_desc.h +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _CQ_ENET_DESC_H_ -#define _CQ_ENET_DESC_H_ - -#include "cq_desc.h" - -/* Ethernet completion queue descriptor: 16B */ -struct cq_enet_wq_desc { - __le16 completed_index; - __le16 q_number; - u8 reserved[11]; - u8 type_color; -}; - -static inline void cq_enet_wq_desc_dec(struct cq_enet_wq_desc *desc, - u8 *type, u8 *color, u16 *q_number, u16 *completed_index) -{ - cq_desc_dec((struct cq_desc *)desc, type, - color, q_number, completed_index); -} - -/* Completion queue descriptor: Ethernet receive queue, 16B */ -struct cq_enet_rq_desc { - __le16 completed_index_flags; - __le16 q_number_rss_type_flags; - __le32 rss_hash; - __le16 bytes_written_flags; - __le16 vlan; - __le16 checksum_fcoe; - u8 flags; - u8 type_color; -}; - -#define CQ_ENET_RQ_DESC_FLAGS_INGRESS_PORT (0x1 << 12) -#define CQ_ENET_RQ_DESC_FLAGS_FCOE (0x1 << 13) -#define CQ_ENET_RQ_DESC_FLAGS_EOP (0x1 << 14) -#define CQ_ENET_RQ_DESC_FLAGS_SOP (0x1 << 15) - -#define CQ_ENET_RQ_DESC_RSS_TYPE_BITS 4 -#define CQ_ENET_RQ_DESC_RSS_TYPE_MASK \ - ((1 << CQ_ENET_RQ_DESC_RSS_TYPE_BITS) - 1) -#define CQ_ENET_RQ_DESC_RSS_TYPE_NONE 0 -#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv4 1 -#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv4 2 -#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv6 3 -#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6 4 -#define CQ_ENET_RQ_DESC_RSS_TYPE_IPv6_EX 5 -#define CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6_EX 6 - -#define CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC (0x1 << 14) - -#define CQ_ENET_RQ_DESC_BYTES_WRITTEN_BITS 14 -#define CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK \ - ((1 << CQ_ENET_RQ_DESC_BYTES_WRITTEN_BITS) - 1) -#define CQ_ENET_RQ_DESC_FLAGS_TRUNCATED (0x1 << 14) -#define CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED (0x1 << 15) - -#define CQ_ENET_RQ_DESC_FCOE_SOF_BITS 4 -#define CQ_ENET_RQ_DESC_FCOE_SOF_MASK \ - ((1 << CQ_ENET_RQ_DESC_FCOE_SOF_BITS) - 1) -#define CQ_ENET_RQ_DESC_FCOE_EOF_BITS 8 -#define CQ_ENET_RQ_DESC_FCOE_EOF_MASK \ - ((1 << CQ_ENET_RQ_DESC_FCOE_EOF_BITS) - 1) -#define CQ_ENET_RQ_DESC_FCOE_EOF_SHIFT 8 - -#define CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK (0x1 << 0) -#define CQ_ENET_RQ_DESC_FCOE_FC_CRC_OK (0x1 << 0) -#define CQ_ENET_RQ_DESC_FLAGS_UDP (0x1 << 1) -#define CQ_ENET_RQ_DESC_FCOE_ENC_ERROR (0x1 << 1) -#define CQ_ENET_RQ_DESC_FLAGS_TCP (0x1 << 2) -#define CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK (0x1 << 3) -#define CQ_ENET_RQ_DESC_FLAGS_IPV6 (0x1 << 4) -#define CQ_ENET_RQ_DESC_FLAGS_IPV4 (0x1 << 5) -#define CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT (0x1 << 6) -#define CQ_ENET_RQ_DESC_FLAGS_FCS_OK (0x1 << 7) - -static inline void cq_enet_rq_desc_dec(struct cq_enet_rq_desc *desc, - u8 *type, u8 *color, u16 *q_number, u16 *completed_index, - u8 *ingress_port, u8 *fcoe, u8 *eop, u8 *sop, u8 *rss_type, - u8 *csum_not_calc, u32 *rss_hash, u16 *bytes_written, u8 *packet_error, - u8 *vlan_stripped, u16 *vlan, u16 *checksum, u8 *fcoe_sof, - u8 *fcoe_fc_crc_ok, u8 *fcoe_enc_error, u8 *fcoe_eof, - u8 *tcp_udp_csum_ok, u8 *udp, u8 *tcp, u8 *ipv4_csum_ok, - u8 *ipv6, u8 *ipv4, u8 *ipv4_fragment, u8 *fcs_ok) -{ - u16 completed_index_flags = le16_to_cpu(desc->completed_index_flags); - u16 q_number_rss_type_flags = - le16_to_cpu(desc->q_number_rss_type_flags); - u16 bytes_written_flags = le16_to_cpu(desc->bytes_written_flags); - - cq_desc_dec((struct cq_desc *)desc, type, - color, q_number, completed_index); - - *ingress_port = (completed_index_flags & - CQ_ENET_RQ_DESC_FLAGS_INGRESS_PORT) ? 1 : 0; - *fcoe = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_FCOE) ? - 1 : 0; - *eop = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_EOP) ? - 1 : 0; - *sop = (completed_index_flags & CQ_ENET_RQ_DESC_FLAGS_SOP) ? - 1 : 0; - - *rss_type = (u8)((q_number_rss_type_flags >> CQ_DESC_Q_NUM_BITS) & - CQ_ENET_RQ_DESC_RSS_TYPE_MASK); - *csum_not_calc = (q_number_rss_type_flags & - CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC) ? 1 : 0; - - *rss_hash = le32_to_cpu(desc->rss_hash); - - *bytes_written = bytes_written_flags & - CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK; - *packet_error = (bytes_written_flags & - CQ_ENET_RQ_DESC_FLAGS_TRUNCATED) ? 1 : 0; - *vlan_stripped = (bytes_written_flags & - CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED) ? 1 : 0; - - *vlan = le16_to_cpu(desc->vlan); - - if (*fcoe) { - *fcoe_sof = (u8)(le16_to_cpu(desc->checksum_fcoe) & - CQ_ENET_RQ_DESC_FCOE_SOF_MASK); - *fcoe_fc_crc_ok = (desc->flags & - CQ_ENET_RQ_DESC_FCOE_FC_CRC_OK) ? 1 : 0; - *fcoe_enc_error = (desc->flags & - CQ_ENET_RQ_DESC_FCOE_ENC_ERROR) ? 1 : 0; - *fcoe_eof = (u8)((desc->checksum_fcoe >> - CQ_ENET_RQ_DESC_FCOE_EOF_SHIFT) & - CQ_ENET_RQ_DESC_FCOE_EOF_MASK); - *checksum = 0; - } else { - *fcoe_sof = 0; - *fcoe_fc_crc_ok = 0; - *fcoe_enc_error = 0; - *fcoe_eof = 0; - *checksum = le16_to_cpu(desc->checksum_fcoe); - } - - *tcp_udp_csum_ok = - (desc->flags & CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK) ? 1 : 0; - *udp = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_UDP) ? 1 : 0; - *tcp = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_TCP) ? 1 : 0; - *ipv4_csum_ok = - (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK) ? 1 : 0; - *ipv6 = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV6) ? 1 : 0; - *ipv4 = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4) ? 1 : 0; - *ipv4_fragment = - (desc->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT) ? 1 : 0; - *fcs_ok = (desc->flags & CQ_ENET_RQ_DESC_FLAGS_FCS_OK) ? 1 : 0; -} - -#endif /* _CQ_ENET_DESC_H_ */ diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h deleted file mode 100644 index c26cea0b300..00000000000 --- a/drivers/net/enic/enic.h +++ /dev/null @@ -1,115 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _ENIC_H_ -#define _ENIC_H_ - -#include <linux/inet_lro.h> - -#include "vnic_enet.h" -#include "vnic_dev.h" -#include "vnic_wq.h" -#include "vnic_rq.h" -#include "vnic_cq.h" -#include "vnic_intr.h" -#include "vnic_stats.h" -#include "vnic_rss.h" - -#define DRV_NAME "enic" -#define DRV_DESCRIPTION "Cisco 10G Ethernet Driver" -#define DRV_VERSION "1.0.0.933" -#define DRV_COPYRIGHT "Copyright 2008 Cisco Systems, Inc" -#define PFX DRV_NAME ": " - -#define ENIC_LRO_MAX_DESC 8 -#define ENIC_LRO_MAX_AGGR 64 - -enum enic_cq_index { - ENIC_CQ_RQ, - ENIC_CQ_WQ, - ENIC_CQ_MAX, -}; - -enum enic_intx_intr_index { - ENIC_INTX_WQ_RQ, - ENIC_INTX_ERR, - ENIC_INTX_NOTIFY, - ENIC_INTX_MAX, -}; - -enum enic_msix_intr_index { - ENIC_MSIX_RQ, - ENIC_MSIX_WQ, - ENIC_MSIX_ERR, - ENIC_MSIX_NOTIFY, - ENIC_MSIX_MAX, -}; - -struct enic_msix_entry { - int requested; - char devname[IFNAMSIZ]; - irqreturn_t (*isr)(int, void *); - void *devid; -}; - -/* Per-instance private data structure */ -struct enic { - struct net_device *netdev; - struct pci_dev *pdev; - struct vnic_enet_config config; - struct vnic_dev_bar bar0; - struct vnic_dev *vdev; - struct timer_list notify_timer; - struct work_struct reset; - struct msix_entry msix_entry[ENIC_MSIX_MAX]; - struct enic_msix_entry msix[ENIC_MSIX_MAX]; - u32 msg_enable; - spinlock_t devcmd_lock; - u8 mac_addr[ETH_ALEN]; - u8 mc_addr[ENIC_MULTICAST_PERFECT_FILTERS][ETH_ALEN]; - unsigned int mc_count; - int csum_rx_enabled; - u32 port_mtu; - - /* work queue cache line section */ - ____cacheline_aligned struct vnic_wq wq[1]; - spinlock_t wq_lock[1]; - unsigned int wq_count; - struct vlan_group *vlan_group; - - /* receive queue cache line section */ - ____cacheline_aligned struct vnic_rq rq[1]; - unsigned int rq_count; - int (*rq_alloc_buf)(struct vnic_rq *rq); - u64 rq_bad_fcs; - struct napi_struct napi; - struct net_lro_mgr lro_mgr; - struct net_lro_desc lro_desc[ENIC_LRO_MAX_DESC]; - - /* interrupt resource cache line section */ - ____cacheline_aligned struct vnic_intr intr[ENIC_MSIX_MAX]; - unsigned int intr_count; - u32 __iomem *legacy_pba; /* memory-mapped */ - - /* completion queue cache line section */ - ____cacheline_aligned struct vnic_cq cq[ENIC_CQ_MAX]; - unsigned int cq_count; -}; - -#endif /* _ENIC_H_ */ diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c deleted file mode 100644 index 9080f07da8f..00000000000 --- a/drivers/net/enic/enic_main.c +++ /dev/null @@ -1,1950 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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/module.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/workqueue.h> -#include <linux/pci.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/if_ether.h> -#include <linux/if_vlan.h> -#include <linux/ethtool.h> -#include <linux/in.h> -#include <linux/ip.h> -#include <linux/ipv6.h> -#include <linux/tcp.h> -#include <net/ip6_checksum.h> - -#include "cq_enet_desc.h" -#include "vnic_dev.h" -#include "vnic_intr.h" -#include "vnic_stats.h" -#include "enic_res.h" -#include "enic.h" - -#define ENIC_NOTIFY_TIMER_PERIOD (2 * HZ) - -/* Supported devices */ -static struct pci_device_id enic_id_table[] = { - { PCI_VDEVICE(CISCO, 0x0043) }, - { 0, } /* end of table */ -}; - -MODULE_DESCRIPTION(DRV_DESCRIPTION); -MODULE_AUTHOR("Scott Feldman <scofeldm@cisco.com>"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(DRV_VERSION); -MODULE_DEVICE_TABLE(pci, enic_id_table); - -struct enic_stat { - char name[ETH_GSTRING_LEN]; - unsigned int offset; -}; - -#define ENIC_TX_STAT(stat) \ - { .name = #stat, .offset = offsetof(struct vnic_tx_stats, stat) / 8 } -#define ENIC_RX_STAT(stat) \ - { .name = #stat, .offset = offsetof(struct vnic_rx_stats, stat) / 8 } - -static const struct enic_stat enic_tx_stats[] = { - ENIC_TX_STAT(tx_frames_ok), - ENIC_TX_STAT(tx_unicast_frames_ok), - ENIC_TX_STAT(tx_multicast_frames_ok), - ENIC_TX_STAT(tx_broadcast_frames_ok), - ENIC_TX_STAT(tx_bytes_ok), - ENIC_TX_STAT(tx_unicast_bytes_ok), - ENIC_TX_STAT(tx_multicast_bytes_ok), - ENIC_TX_STAT(tx_broadcast_bytes_ok), - ENIC_TX_STAT(tx_drops), - ENIC_TX_STAT(tx_errors), - ENIC_TX_STAT(tx_tso), -}; - -static const struct enic_stat enic_rx_stats[] = { - ENIC_RX_STAT(rx_frames_ok), - ENIC_RX_STAT(rx_frames_total), - ENIC_RX_STAT(rx_unicast_frames_ok), - ENIC_RX_STAT(rx_multicast_frames_ok), - ENIC_RX_STAT(rx_broadcast_frames_ok), - ENIC_RX_STAT(rx_bytes_ok), - ENIC_RX_STAT(rx_unicast_bytes_ok), - ENIC_RX_STAT(rx_multicast_bytes_ok), - ENIC_RX_STAT(rx_broadcast_bytes_ok), - ENIC_RX_STAT(rx_drop), - ENIC_RX_STAT(rx_no_bufs), - ENIC_RX_STAT(rx_errors), - ENIC_RX_STAT(rx_rss), - ENIC_RX_STAT(rx_crc_errors), - ENIC_RX_STAT(rx_frames_64), - ENIC_RX_STAT(rx_frames_127), - ENIC_RX_STAT(rx_frames_255), - ENIC_RX_STAT(rx_frames_511), - ENIC_RX_STAT(rx_frames_1023), - ENIC_RX_STAT(rx_frames_1518), - ENIC_RX_STAT(rx_frames_to_max), -}; - -static const unsigned int enic_n_tx_stats = ARRAY_SIZE(enic_tx_stats); -static const unsigned int enic_n_rx_stats = ARRAY_SIZE(enic_rx_stats); - -static int enic_get_settings(struct net_device *netdev, - struct ethtool_cmd *ecmd) -{ - struct enic *enic = netdev_priv(netdev); - - ecmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); - ecmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE); - ecmd->port = PORT_FIBRE; - ecmd->transceiver = XCVR_EXTERNAL; - - if (netif_carrier_ok(netdev)) { - ecmd->speed = vnic_dev_port_speed(enic->vdev); - ecmd->duplex = DUPLEX_FULL; - } else { - ecmd->speed = -1; - ecmd->duplex = -1; - } - - ecmd->autoneg = AUTONEG_DISABLE; - - return 0; -} - -static void enic_get_drvinfo(struct net_device *netdev, - struct ethtool_drvinfo *drvinfo) -{ - struct enic *enic = netdev_priv(netdev); - struct vnic_devcmd_fw_info *fw_info; - - spin_lock(&enic->devcmd_lock); - vnic_dev_fw_info(enic->vdev, &fw_info); - spin_unlock(&enic->devcmd_lock); - - strncpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); - strncpy(drvinfo->version, DRV_VERSION, sizeof(drvinfo->version)); - strncpy(drvinfo->fw_version, fw_info->fw_version, - sizeof(drvinfo->fw_version)); - strncpy(drvinfo->bus_info, pci_name(enic->pdev), - sizeof(drvinfo->bus_info)); -} - -static void enic_get_strings(struct net_device *netdev, u32 stringset, u8 *data) -{ - unsigned int i; - - switch (stringset) { - case ETH_SS_STATS: - for (i = 0; i < enic_n_tx_stats; i++) { - memcpy(data, enic_tx_stats[i].name, ETH_GSTRING_LEN); - data += ETH_GSTRING_LEN; - } - for (i = 0; i < enic_n_rx_stats; i++) { - memcpy(data, enic_rx_stats[i].name, ETH_GSTRING_LEN); - data += ETH_GSTRING_LEN; - } - break; - } -} - -static int enic_get_sset_count(struct net_device *netdev, int sset) -{ - switch (sset) { - case ETH_SS_STATS: - return enic_n_tx_stats + enic_n_rx_stats; - default: - return -EOPNOTSUPP; - } -} - -static void enic_get_ethtool_stats(struct net_device *netdev, - struct ethtool_stats *stats, u64 *data) -{ - struct enic *enic = netdev_priv(netdev); - struct vnic_stats *vstats; - unsigned int i; - - spin_lock(&enic->devcmd_lock); - vnic_dev_stats_dump(enic->vdev, &vstats); - spin_unlock(&enic->devcmd_lock); - - for (i = 0; i < enic_n_tx_stats; i++) - *(data++) = ((u64 *)&vstats->tx)[enic_tx_stats[i].offset]; - for (i = 0; i < enic_n_rx_stats; i++) - *(data++) = ((u64 *)&vstats->rx)[enic_rx_stats[i].offset]; -} - -static u32 enic_get_rx_csum(struct net_device *netdev) -{ - struct enic *enic = netdev_priv(netdev); - return enic->csum_rx_enabled; -} - -static int enic_set_rx_csum(struct net_device *netdev, u32 data) -{ - struct enic *enic = netdev_priv(netdev); - - if (data && !ENIC_SETTING(enic, RXCSUM)) - return -EINVAL; - - enic->csum_rx_enabled = !!data; - - return 0; -} - -static int enic_set_tx_csum(struct net_device *netdev, u32 data) -{ - struct enic *enic = netdev_priv(netdev); - - if (data && !ENIC_SETTING(enic, TXCSUM)) - return -EINVAL; - - if (data) - netdev->features |= NETIF_F_HW_CSUM; - else - netdev->features &= ~NETIF_F_HW_CSUM; - - return 0; -} - -static int enic_set_tso(struct net_device *netdev, u32 data) -{ - struct enic *enic = netdev_priv(netdev); - - if (data && !ENIC_SETTING(enic, TSO)) - return -EINVAL; - - if (data) - netdev->features |= - NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN; - else - netdev->features &= - ~(NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN); - - return 0; -} - -static u32 enic_get_msglevel(struct net_device *netdev) -{ - struct enic *enic = netdev_priv(netdev); - return enic->msg_enable; -} - -static void enic_set_msglevel(struct net_device *netdev, u32 value) -{ - struct enic *enic = netdev_priv(netdev); - enic->msg_enable = value; -} - -static struct ethtool_ops enic_ethtool_ops = { - .get_settings = enic_get_settings, - .get_drvinfo = enic_get_drvinfo, - .get_msglevel = enic_get_msglevel, - .set_msglevel = enic_set_msglevel, - .get_link = ethtool_op_get_link, - .get_strings = enic_get_strings, - .get_sset_count = enic_get_sset_count, - .get_ethtool_stats = enic_get_ethtool_stats, - .get_rx_csum = enic_get_rx_csum, - .set_rx_csum = enic_set_rx_csum, - .get_tx_csum = ethtool_op_get_tx_csum, - .set_tx_csum = enic_set_tx_csum, - .get_sg = ethtool_op_get_sg, - .set_sg = ethtool_op_set_sg, - .get_tso = ethtool_op_get_tso, - .set_tso = enic_set_tso, - .get_flags = ethtool_op_get_flags, - .set_flags = ethtool_op_set_flags, -}; - -static void enic_free_wq_buf(struct vnic_wq *wq, struct vnic_wq_buf *buf) -{ - struct enic *enic = vnic_dev_priv(wq->vdev); - - if (buf->sop) - pci_unmap_single(enic->pdev, buf->dma_addr, - buf->len, PCI_DMA_TODEVICE); - else - pci_unmap_page(enic->pdev, buf->dma_addr, - buf->len, PCI_DMA_TODEVICE); - - if (buf->os_buf) - dev_kfree_skb_any(buf->os_buf); -} - -static void enic_wq_free_buf(struct vnic_wq *wq, - struct cq_desc *cq_desc, struct vnic_wq_buf *buf, void *opaque) -{ - enic_free_wq_buf(wq, buf); -} - -static int enic_wq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc, - u8 type, u16 q_number, u16 completed_index, void *opaque) -{ - struct enic *enic = vnic_dev_priv(vdev); - - spin_lock(&enic->wq_lock[q_number]); - - vnic_wq_service(&enic->wq[q_number], cq_desc, - completed_index, enic_wq_free_buf, - opaque); - - if (netif_queue_stopped(enic->netdev) && - vnic_wq_desc_avail(&enic->wq[q_number]) >= MAX_SKB_FRAGS + 1) - netif_wake_queue(enic->netdev); - - spin_unlock(&enic->wq_lock[q_number]); - - return 0; -} - -static void enic_log_q_error(struct enic *enic) -{ - unsigned int i; - u32 error_status; - - for (i = 0; i < enic->wq_count; i++) { - error_status = vnic_wq_error_status(&enic->wq[i]); - if (error_status) - printk(KERN_ERR PFX "%s: WQ[%d] error_status %d\n", - enic->netdev->name, i, error_status); - } - - for (i = 0; i < enic->rq_count; i++) { - error_status = vnic_rq_error_status(&enic->rq[i]); - if (error_status) - printk(KERN_ERR PFX "%s: RQ[%d] error_status %d\n", - enic->netdev->name, i, error_status); - } -} - -static void enic_link_check(struct enic *enic) -{ - int link_status = vnic_dev_link_status(enic->vdev); - int carrier_ok = netif_carrier_ok(enic->netdev); - - if (link_status && !carrier_ok) { - printk(KERN_INFO PFX "%s: Link UP\n", enic->netdev->name); - netif_carrier_on(enic->netdev); - } else if (!link_status && carrier_ok) { - printk(KERN_INFO PFX "%s: Link DOWN\n", enic->netdev->name); - netif_carrier_off(enic->netdev); - } -} - -static void enic_mtu_check(struct enic *enic) -{ - u32 mtu = vnic_dev_mtu(enic->vdev); - - if (mtu != enic->port_mtu) { - if (mtu < enic->netdev->mtu) - printk(KERN_WARNING PFX - "%s: interface MTU (%d) set higher " - "than switch port MTU (%d)\n", - enic->netdev->name, enic->netdev->mtu, mtu); - enic->port_mtu = mtu; - } -} - -static void enic_msglvl_check(struct enic *enic) -{ - u32 msg_enable = vnic_dev_msg_lvl(enic->vdev); - - if (msg_enable != enic->msg_enable) { - printk(KERN_INFO PFX "%s: msg lvl changed from 0x%x to 0x%x\n", - enic->netdev->name, enic->msg_enable, msg_enable); - enic->msg_enable = msg_enable; - } -} - -static void enic_notify_check(struct enic *enic) -{ - enic_msglvl_check(enic); - enic_mtu_check(enic); - enic_link_check(enic); -} - -#define ENIC_TEST_INTR(pba, i) (pba & (1 << i)) - -static irqreturn_t enic_isr_legacy(int irq, void *data) -{ - struct net_device *netdev = data; - struct enic *enic = netdev_priv(netdev); - u32 pba; - - vnic_intr_mask(&enic->intr[ENIC_INTX_WQ_RQ]); - - pba = vnic_intr_legacy_pba(enic->legacy_pba); - if (!pba) { - vnic_intr_unmask(&enic->intr[ENIC_INTX_WQ_RQ]); - return IRQ_NONE; /* not our interrupt */ - } - - if (ENIC_TEST_INTR(pba, ENIC_INTX_NOTIFY)) { - vnic_intr_return_all_credits(&enic->intr[ENIC_INTX_NOTIFY]); - enic_notify_check(enic); - } - - if (ENIC_TEST_INTR(pba, ENIC_INTX_ERR)) { - vnic_intr_return_all_credits(&enic->intr[ENIC_INTX_ERR]); - enic_log_q_error(enic); - /* schedule recovery from WQ/RQ error */ - schedule_work(&enic->reset); - return IRQ_HANDLED; - } - - if (ENIC_TEST_INTR(pba, ENIC_INTX_WQ_RQ)) { - if (napi_schedule_prep(&enic->napi)) - __napi_schedule(&enic->napi); - } else { - vnic_intr_unmask(&enic->intr[ENIC_INTX_WQ_RQ]); - } - - return IRQ_HANDLED; -} - -static irqreturn_t enic_isr_msi(int irq, void *data) -{ - struct enic *enic = data; - - /* With MSI, there is no sharing of interrupts, so this is - * our interrupt and there is no need to ack it. The device - * is not providing per-vector masking, so the OS will not - * write to PCI config space to mask/unmask the interrupt. - * We're using mask_on_assertion for MSI, so the device - * automatically masks the interrupt when the interrupt is - * generated. Later, when exiting polling, the interrupt - * will be unmasked (see enic_poll). - * - * Also, the device uses the same PCIe Traffic Class (TC) - * for Memory Write data and MSI, so there are no ordering - * issues; the MSI will always arrive at the Root Complex - * _after_ corresponding Memory Writes (i.e. descriptor - * writes). - */ - - napi_schedule(&enic->napi); - - return IRQ_HANDLED; -} - -static irqreturn_t enic_isr_msix_rq(int irq, void *data) -{ - struct enic *enic = data; - - /* schedule NAPI polling for RQ cleanup */ - napi_schedule(&enic->napi); - - return IRQ_HANDLED; -} - -static irqreturn_t enic_isr_msix_wq(int irq, void *data) -{ - struct enic *enic = data; - unsigned int wq_work_to_do = -1; /* no limit */ - unsigned int wq_work_done; - - wq_work_done = vnic_cq_service(&enic->cq[ENIC_CQ_WQ], - wq_work_to_do, enic_wq_service, NULL); - - vnic_intr_return_credits(&enic->intr[ENIC_MSIX_WQ], - wq_work_done, - 1 /* unmask intr */, - 1 /* reset intr timer */); - - return IRQ_HANDLED; -} - -static irqreturn_t enic_isr_msix_err(int irq, void *data) -{ - struct enic *enic = data; - - vnic_intr_return_all_credits(&enic->intr[ENIC_MSIX_ERR]); - - enic_log_q_error(enic); - - /* schedule recovery from WQ/RQ error */ - schedule_work(&enic->reset); - - return IRQ_HANDLED; -} - -static irqreturn_t enic_isr_msix_notify(int irq, void *data) -{ - struct enic *enic = data; - - vnic_intr_return_all_credits(&enic->intr[ENIC_MSIX_NOTIFY]); - enic_notify_check(enic); - - return IRQ_HANDLED; -} - -static inline void enic_queue_wq_skb_cont(struct enic *enic, - struct vnic_wq *wq, struct sk_buff *skb, - unsigned int len_left) -{ - skb_frag_t *frag; - - /* Queue additional data fragments */ - for (frag = skb_shinfo(skb)->frags; len_left; frag++) { - len_left -= frag->size; - enic_queue_wq_desc_cont(wq, skb, - pci_map_page(enic->pdev, frag->page, - frag->page_offset, frag->size, - PCI_DMA_TODEVICE), - frag->size, - (len_left == 0)); /* EOP? */ - } -} - -static inline void enic_queue_wq_skb_vlan(struct enic *enic, - struct vnic_wq *wq, struct sk_buff *skb, - int vlan_tag_insert, unsigned int vlan_tag) -{ - unsigned int head_len = skb_headlen(skb); - unsigned int len_left = skb->len - head_len; - int eop = (len_left == 0); - - /* Queue the main skb fragment */ - enic_queue_wq_desc(wq, skb, - pci_map_single(enic->pdev, skb->data, - head_len, PCI_DMA_TODEVICE), - head_len, - vlan_tag_insert, vlan_tag, - eop); - - if (!eop) - enic_queue_wq_skb_cont(enic, wq, skb, len_left); -} - -static inline void enic_queue_wq_skb_csum_l4(struct enic *enic, - struct vnic_wq *wq, struct sk_buff *skb, - int vlan_tag_insert, unsigned int vlan_tag) -{ - unsigned int head_len = skb_headlen(skb); - unsigned int len_left = skb->len - head_len; - unsigned int hdr_len = skb_transport_offset(skb); - unsigned int csum_offset = hdr_len + skb->csum_offset; - int eop = (len_left == 0); - - /* Queue the main skb fragment */ - enic_queue_wq_desc_csum_l4(wq, skb, - pci_map_single(enic->pdev, skb->data, - head_len, PCI_DMA_TODEVICE), - head_len, - csum_offset, - hdr_len, - vlan_tag_insert, vlan_tag, - eop); - - if (!eop) - enic_queue_wq_skb_cont(enic, wq, skb, len_left); -} - -static inline void enic_queue_wq_skb_tso(struct enic *enic, - struct vnic_wq *wq, struct sk_buff *skb, unsigned int mss, - int vlan_tag_insert, unsigned int vlan_tag) -{ - unsigned int head_len = skb_headlen(skb); - unsigned int len_left = skb->len - head_len; - unsigned int hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); - int eop = (len_left == 0); - - /* Preload TCP csum field with IP pseudo hdr calculated - * with IP length set to zero. HW will later add in length - * to each TCP segment resulting from the TSO. - */ - - if (skb->protocol == cpu_to_be16(ETH_P_IP)) { - ip_hdr(skb)->check = 0; - tcp_hdr(skb)->check = ~csum_tcpudp_magic(ip_hdr(skb)->saddr, - ip_hdr(skb)->daddr, 0, IPPROTO_TCP, 0); - } else if (skb->protocol == cpu_to_be16(ETH_P_IPV6)) { - tcp_hdr(skb)->check = ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, - &ipv6_hdr(skb)->daddr, 0, IPPROTO_TCP, 0); - } - - /* Queue the main skb fragment */ - enic_queue_wq_desc_tso(wq, skb, - pci_map_single(enic->pdev, skb->data, - head_len, PCI_DMA_TODEVICE), - head_len, - mss, hdr_len, - vlan_tag_insert, vlan_tag, - eop); - - if (!eop) - enic_queue_wq_skb_cont(enic, wq, skb, len_left); -} - -static inline void enic_queue_wq_skb(struct enic *enic, - struct vnic_wq *wq, struct sk_buff *skb) -{ - unsigned int mss = skb_shinfo(skb)->gso_size; - unsigned int vlan_tag = 0; - int vlan_tag_insert = 0; - - if (enic->vlan_group && vlan_tx_tag_present(skb)) { - /* VLAN tag from trunking driver */ - vlan_tag_insert = 1; - vlan_tag = vlan_tx_tag_get(skb); - } - - if (mss) - enic_queue_wq_skb_tso(enic, wq, skb, mss, - vlan_tag_insert, vlan_tag); - else if (skb->ip_summed == CHECKSUM_PARTIAL) - enic_queue_wq_skb_csum_l4(enic, wq, skb, - vlan_tag_insert, vlan_tag); - else - enic_queue_wq_skb_vlan(enic, wq, skb, - vlan_tag_insert, vlan_tag); -} - -/* netif_tx_lock held, process context with BHs disabled, or BH */ -static int enic_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev) -{ - struct enic *enic = netdev_priv(netdev); - struct vnic_wq *wq = &enic->wq[0]; - unsigned long flags; - - if (skb->len <= 0) { - dev_kfree_skb(skb); - return NETDEV_TX_OK; - } - - /* Non-TSO sends must fit within ENIC_NON_TSO_MAX_DESC descs, - * which is very likely. In the off chance it's going to take - * more than * ENIC_NON_TSO_MAX_DESC, linearize the skb. - */ - - if (skb_shinfo(skb)->gso_size == 0 && - skb_shinfo(skb)->nr_frags + 1 > ENIC_NON_TSO_MAX_DESC && - skb_linearize(skb)) { - dev_kfree_skb(skb); - return NETDEV_TX_OK; - } - - spin_lock_irqsave(&enic->wq_lock[0], flags); - - if (vnic_wq_desc_avail(wq) < skb_shinfo(skb)->nr_frags + 1) { - netif_stop_queue(netdev); - /* This is a hard error, log it */ - printk(KERN_ERR PFX "%s: BUG! Tx ring full when " - "queue awake!\n", netdev->name); - spin_unlock_irqrestore(&enic->wq_lock[0], flags); - return NETDEV_TX_BUSY; - } - - enic_queue_wq_skb(enic, wq, skb); - - if (vnic_wq_desc_avail(wq) < MAX_SKB_FRAGS + 1) - netif_stop_queue(netdev); - - netdev->trans_start = jiffies; - - spin_unlock_irqrestore(&enic->wq_lock[0], flags); - - return NETDEV_TX_OK; -} - -/* dev_base_lock rwlock held, nominally process context */ -static struct net_device_stats *enic_get_stats(struct net_device *netdev) -{ - struct enic *enic = netdev_priv(netdev); - struct net_device_stats *net_stats = &netdev->stats; - struct vnic_stats *stats; - - spin_lock(&enic->devcmd_lock); - vnic_dev_stats_dump(enic->vdev, &stats); - spin_unlock(&enic->devcmd_lock); - - net_stats->tx_packets = stats->tx.tx_frames_ok; - net_stats->tx_bytes = stats->tx.tx_bytes_ok; - net_stats->tx_errors = stats->tx.tx_errors; - net_stats->tx_dropped = stats->tx.tx_drops; - - net_stats->rx_packets = stats->rx.rx_frames_ok; - net_stats->rx_bytes = stats->rx.rx_bytes_ok; - net_stats->rx_errors = stats->rx.rx_errors; - net_stats->multicast = stats->rx.rx_multicast_frames_ok; - net_stats->rx_crc_errors = enic->rq_bad_fcs; - net_stats->rx_dropped = stats->rx.rx_no_bufs; - - return net_stats; -} - -static void enic_reset_mcaddrs(struct enic *enic) -{ - enic->mc_count = 0; -} - -static int enic_set_mac_addr(struct net_device *netdev, char *addr) -{ - if (!is_valid_ether_addr(addr)) - return -EADDRNOTAVAIL; - - memcpy(netdev->dev_addr, addr, netdev->addr_len); - - return 0; -} - -/* netif_tx_lock held, BHs disabled */ -static void enic_set_multicast_list(struct net_device *netdev) -{ - struct enic *enic = netdev_priv(netdev); - struct dev_mc_list *list = netdev->mc_list; - int directed = 1; - int multicast = (netdev->flags & IFF_MULTICAST) ? 1 : 0; - int broadcast = (netdev->flags & IFF_BROADCAST) ? 1 : 0; - int promisc = (netdev->flags & IFF_PROMISC) ? 1 : 0; - int allmulti = (netdev->flags & IFF_ALLMULTI) || - (netdev->mc_count > ENIC_MULTICAST_PERFECT_FILTERS); - u8 mc_addr[ENIC_MULTICAST_PERFECT_FILTERS][ETH_ALEN]; - unsigned int mc_count = netdev->mc_count; - unsigned int i, j; - - if (mc_count > ENIC_MULTICAST_PERFECT_FILTERS) - mc_count = ENIC_MULTICAST_PERFECT_FILTERS; - - spin_lock(&enic->devcmd_lock); - - vnic_dev_packet_filter(enic->vdev, directed, - multicast, broadcast, promisc, allmulti); - - /* Is there an easier way? Trying to minimize to - * calls to add/del multicast addrs. We keep the - * addrs from the last call in enic->mc_addr and - * look for changes to add/del. - */ - - for (i = 0; list && i < mc_count; i++) { - memcpy(mc_addr[i], list->dmi_addr, ETH_ALEN); - list = list->next; - } - - for (i = 0; i < enic->mc_count; i++) { - for (j = 0; j < mc_count; j++) - if (compare_ether_addr(enic->mc_addr[i], - mc_addr[j]) == 0) - break; - if (j == mc_count) - enic_del_multicast_addr(enic, enic->mc_addr[i]); - } - - for (i = 0; i < mc_count; i++) { - for (j = 0; j < enic->mc_count; j++) - if (compare_ether_addr(mc_addr[i], - enic->mc_addr[j]) == 0) - break; - if (j == enic->mc_count) - enic_add_multicast_addr(enic, mc_addr[i]); - } - - /* Save the list to compare against next time - */ - - for (i = 0; i < mc_count; i++) - memcpy(enic->mc_addr[i], mc_addr[i], ETH_ALEN); - - enic->mc_count = mc_count; - - spin_unlock(&enic->devcmd_lock); -} - -/* rtnl lock is held */ -static void enic_vlan_rx_register(struct net_device *netdev, - struct vlan_group *vlan_group) -{ - struct enic *enic = netdev_priv(netdev); - enic->vlan_group = vlan_group; -} - -/* rtnl lock is held */ -static void enic_vlan_rx_add_vid(struct net_device *netdev, u16 vid) -{ - struct enic *enic = netdev_priv(netdev); - - spin_lock(&enic->devcmd_lock); - enic_add_vlan(enic, vid); - spin_unlock(&enic->devcmd_lock); -} - -/* rtnl lock is held */ -static void enic_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) -{ - struct enic *enic = netdev_priv(netdev); - - spin_lock(&enic->devcmd_lock); - enic_del_vlan(enic, vid); - spin_unlock(&enic->devcmd_lock); -} - -/* netif_tx_lock held, BHs disabled */ -static void enic_tx_timeout(struct net_device *netdev) -{ - struct enic *enic = netdev_priv(netdev); - schedule_work(&enic->reset); -} - -static void enic_free_rq_buf(struct vnic_rq *rq, struct vnic_rq_buf *buf) -{ - struct enic *enic = vnic_dev_priv(rq->vdev); - - if (!buf->os_buf) - return; - - pci_unmap_single(enic->pdev, buf->dma_addr, - buf->len, PCI_DMA_FROMDEVICE); - dev_kfree_skb_any(buf->os_buf); -} - -static inline struct sk_buff *enic_rq_alloc_skb(unsigned int size) -{ - struct sk_buff *skb; - - skb = dev_alloc_skb(size + NET_IP_ALIGN); - - if (skb) - skb_reserve(skb, NET_IP_ALIGN); - - return skb; -} - -static int enic_rq_alloc_buf(struct vnic_rq *rq) -{ - struct enic *enic = vnic_dev_priv(rq->vdev); - struct sk_buff *skb; - unsigned int len = enic->netdev->mtu + ETH_HLEN; - unsigned int os_buf_index = 0; - dma_addr_t dma_addr; - - skb = enic_rq_alloc_skb(len); - if (!skb) - return -ENOMEM; - - dma_addr = pci_map_single(enic->pdev, skb->data, - len, PCI_DMA_FROMDEVICE); - - enic_queue_rq_desc(rq, skb, os_buf_index, - dma_addr, len); - - return 0; -} - -static int enic_get_skb_header(struct sk_buff *skb, void **iphdr, - void **tcph, u64 *hdr_flags, void *priv) -{ - struct cq_enet_rq_desc *cq_desc = priv; - unsigned int ip_len; - struct iphdr *iph; - - u8 type, color, eop, sop, ingress_port, vlan_stripped; - u8 fcoe, fcoe_sof, fcoe_fc_crc_ok, fcoe_enc_error, fcoe_eof; - u8 tcp_udp_csum_ok, udp, tcp, ipv4_csum_ok; - u8 ipv6, ipv4, ipv4_fragment, fcs_ok, rss_type, csum_not_calc; - u8 packet_error; - u16 q_number, completed_index, bytes_written, vlan, checksum; - u32 rss_hash; - - cq_enet_rq_desc_dec(cq_desc, - &type, &color, &q_number, &completed_index, - &ingress_port, &fcoe, &eop, &sop, &rss_type, - &csum_not_calc, &rss_hash, &bytes_written, - &packet_error, &vlan_stripped, &vlan, &checksum, - &fcoe_sof, &fcoe_fc_crc_ok, &fcoe_enc_error, - &fcoe_eof, &tcp_udp_csum_ok, &udp, &tcp, - &ipv4_csum_ok, &ipv6, &ipv4, &ipv4_fragment, - &fcs_ok); - - if (!(ipv4 && tcp && !ipv4_fragment)) - return -1; - - skb_reset_network_header(skb); - iph = ip_hdr(skb); - - ip_len = ip_hdrlen(skb); - skb_set_transport_header(skb, ip_len); - - /* check if ip header and tcp header are complete */ - if (ntohs(iph->tot_len) < ip_len + tcp_hdrlen(skb)) - return -1; - - *hdr_flags = LRO_IPV4 | LRO_TCP; - *tcph = tcp_hdr(skb); - *iphdr = iph; - - return 0; -} - -static void enic_rq_indicate_buf(struct vnic_rq *rq, - struct cq_desc *cq_desc, struct vnic_rq_buf *buf, - int skipped, void *opaque) -{ - struct enic *enic = vnic_dev_priv(rq->vdev); - struct net_device *netdev = enic->netdev; - struct sk_buff *skb; - - u8 type, color, eop, sop, ingress_port, vlan_stripped; - u8 fcoe, fcoe_sof, fcoe_fc_crc_ok, fcoe_enc_error, fcoe_eof; - u8 tcp_udp_csum_ok, udp, tcp, ipv4_csum_ok; - u8 ipv6, ipv4, ipv4_fragment, fcs_ok, rss_type, csum_not_calc; - u8 packet_error; - u16 q_number, completed_index, bytes_written, vlan, checksum; - u32 rss_hash; - - if (skipped) - return; - - skb = buf->os_buf; - prefetch(skb->data - NET_IP_ALIGN); - pci_unmap_single(enic->pdev, buf->dma_addr, - buf->len, PCI_DMA_FROMDEVICE); - - cq_enet_rq_desc_dec((struct cq_enet_rq_desc *)cq_desc, - &type, &color, &q_number, &completed_index, - &ingress_port, &fcoe, &eop, &sop, &rss_type, - &csum_not_calc, &rss_hash, &bytes_written, - &packet_error, &vlan_stripped, &vlan, &checksum, - &fcoe_sof, &fcoe_fc_crc_ok, &fcoe_enc_error, - &fcoe_eof, &tcp_udp_csum_ok, &udp, &tcp, - &ipv4_csum_ok, &ipv6, &ipv4, &ipv4_fragment, - &fcs_ok); - - if (packet_error) { - - if (bytes_written > 0 && !fcs_ok) - enic->rq_bad_fcs++; - - dev_kfree_skb_any(skb); - - return; - } - - if (eop && bytes_written > 0) { - - /* Good receive - */ - - skb_put(skb, bytes_written); - skb->protocol = eth_type_trans(skb, netdev); - - if (enic->csum_rx_enabled && !csum_not_calc) { - skb->csum = htons(checksum); - skb->ip_summed = CHECKSUM_COMPLETE; - } - - skb->dev = netdev; - - if (enic->vlan_group && vlan_stripped) { - - if ((netdev->features & NETIF_F_LRO) && ipv4) - lro_vlan_hwaccel_receive_skb(&enic->lro_mgr, - skb, enic->vlan_group, - vlan, cq_desc); - else - vlan_hwaccel_receive_skb(skb, - enic->vlan_group, vlan); - - } else { - - if ((netdev->features & NETIF_F_LRO) && ipv4) - lro_receive_skb(&enic->lro_mgr, skb, cq_desc); - else - netif_receive_skb(skb); - - } - - } else { - - /* Buffer overflow - */ - - dev_kfree_skb_any(skb); - } -} - -static int enic_rq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc, - u8 type, u16 q_number, u16 completed_index, void *opaque) -{ - struct enic *enic = vnic_dev_priv(vdev); - - vnic_rq_service(&enic->rq[q_number], cq_desc, - completed_index, VNIC_RQ_RETURN_DESC, - enic_rq_indicate_buf, opaque); - - return 0; -} - -static void enic_rq_drop_buf(struct vnic_rq *rq, - struct cq_desc *cq_desc, struct vnic_rq_buf *buf, - int skipped, void *opaque) -{ - struct enic *enic = vnic_dev_priv(rq->vdev); - struct sk_buff *skb = buf->os_buf; - - if (skipped) - return; - - pci_unmap_single(enic->pdev, buf->dma_addr, - buf->len, PCI_DMA_FROMDEVICE); - - dev_kfree_skb_any(skb); -} - -static int enic_rq_service_drop(struct vnic_dev *vdev, struct cq_desc *cq_desc, - u8 type, u16 q_number, u16 completed_index, void *opaque) -{ - struct enic *enic = vnic_dev_priv(vdev); - - vnic_rq_service(&enic->rq[q_number], cq_desc, - completed_index, VNIC_RQ_RETURN_DESC, - enic_rq_drop_buf, opaque); - - return 0; -} - -static int enic_poll(struct napi_struct *napi, int budget) -{ - struct enic *enic = container_of(napi, struct enic, napi); - struct net_device *netdev = enic->netdev; - unsigned int rq_work_to_do = budget; - unsigned int wq_work_to_do = -1; /* no limit */ - unsigned int work_done, rq_work_done, wq_work_done; - - /* Service RQ (first) and WQ - */ - - rq_work_done = vnic_cq_service(&enic->cq[ENIC_CQ_RQ], - rq_work_to_do, enic_rq_service, NULL); - - wq_work_done = vnic_cq_service(&enic->cq[ENIC_CQ_WQ], - wq_work_to_do, enic_wq_service, NULL); - - /* Accumulate intr event credits for this polling - * cycle. An intr event is the completion of a - * a WQ or RQ packet. - */ - - work_done = rq_work_done + wq_work_done; - - if (work_done > 0) - vnic_intr_return_credits(&enic->intr[ENIC_INTX_WQ_RQ], - work_done, - 0 /* don't unmask intr */, - 0 /* don't reset intr timer */); - - if (rq_work_done > 0) { - - /* Replenish RQ - */ - - vnic_rq_fill(&enic->rq[0], enic_rq_alloc_buf); - - } else { - - /* If no work done, flush all LROs and exit polling - */ - - if (netdev->features & NETIF_F_LRO) - lro_flush_all(&enic->lro_mgr); - - napi_complete(napi); - vnic_intr_unmask(&enic->intr[ENIC_INTX_WQ_RQ]); - } - - return rq_work_done; -} - -static int enic_poll_msix(struct napi_struct *napi, int budget) -{ - struct enic *enic = container_of(napi, struct enic, napi); - struct net_device *netdev = enic->netdev; - unsigned int work_to_do = budget; - unsigned int work_done; - - /* Service RQ - */ - - work_done = vnic_cq_service(&enic->cq[ENIC_CQ_RQ], - work_to_do, enic_rq_service, NULL); - - if (work_done > 0) { - - /* Replenish RQ - */ - - vnic_rq_fill(&enic->rq[0], enic_rq_alloc_buf); - - /* Return intr event credits for this polling - * cycle. An intr event is the completion of a - * RQ packet. - */ - - vnic_intr_return_credits(&enic->intr[ENIC_MSIX_RQ], - work_done, - 0 /* don't unmask intr */, - 0 /* don't reset intr timer */); - } else { - - /* If no work done, flush all LROs and exit polling - */ - - if (netdev->features & NETIF_F_LRO) - lro_flush_all(&enic->lro_mgr); - - napi_complete(napi); - vnic_intr_unmask(&enic->intr[ENIC_MSIX_RQ]); - } - - return work_done; -} - -static void enic_notify_timer(unsigned long data) -{ - struct enic *enic = (struct enic *)data; - - enic_notify_check(enic); - - mod_timer(&enic->notify_timer, - round_jiffies(jiffies + ENIC_NOTIFY_TIMER_PERIOD)); -} - -static void enic_free_intr(struct enic *enic) -{ - struct net_device *netdev = enic->netdev; - unsigned int i; - - switch (vnic_dev_get_intr_mode(enic->vdev)) { - case VNIC_DEV_INTR_MODE_INTX: - free_irq(enic->pdev->irq, netdev); - break; - case VNIC_DEV_INTR_MODE_MSI: - free_irq(enic->pdev->irq, enic); - break; - case VNIC_DEV_INTR_MODE_MSIX: - for (i = 0; i < ARRAY_SIZE(enic->msix); i++) - if (enic->msix[i].requested) - free_irq(enic->msix_entry[i].vector, - enic->msix[i].devid); - break; - default: - break; - } -} - -static int enic_request_intr(struct enic *enic) -{ - struct net_device *netdev = enic->netdev; - unsigned int i; - int err = 0; - - switch (vnic_dev_get_intr_mode(enic->vdev)) { - - case VNIC_DEV_INTR_MODE_INTX: - - err = request_irq(enic->pdev->irq, enic_isr_legacy, - IRQF_SHARED, netdev->name, netdev); - break; - - case VNIC_DEV_INTR_MODE_MSI: - - err = request_irq(enic->pdev->irq, enic_isr_msi, - 0, netdev->name, enic); - break; - - case VNIC_DEV_INTR_MODE_MSIX: - - sprintf(enic->msix[ENIC_MSIX_RQ].devname, - "%.11s-rx-0", netdev->name); - enic->msix[ENIC_MSIX_RQ].isr = enic_isr_msix_rq; - enic->msix[ENIC_MSIX_RQ].devid = enic; - - sprintf(enic->msix[ENIC_MSIX_WQ].devname, - "%.11s-tx-0", netdev->name); - enic->msix[ENIC_MSIX_WQ].isr = enic_isr_msix_wq; - enic->msix[ENIC_MSIX_WQ].devid = enic; - - sprintf(enic->msix[ENIC_MSIX_ERR].devname, - "%.11s-err", netdev->name); - enic->msix[ENIC_MSIX_ERR].isr = enic_isr_msix_err; - enic->msix[ENIC_MSIX_ERR].devid = enic; - - sprintf(enic->msix[ENIC_MSIX_NOTIFY].devname, - "%.11s-notify", netdev->name); - enic->msix[ENIC_MSIX_NOTIFY].isr = enic_isr_msix_notify; - enic->msix[ENIC_MSIX_NOTIFY].devid = enic; - - for (i = 0; i < ARRAY_SIZE(enic->msix); i++) { - err = request_irq(enic->msix_entry[i].vector, - enic->msix[i].isr, 0, - enic->msix[i].devname, - enic->msix[i].devid); - if (err) { - enic_free_intr(enic); - break; - } - enic->msix[i].requested = 1; - } - - break; - - default: - break; - } - - return err; -} - -static int enic_notify_set(struct enic *enic) -{ - int err; - - switch (vnic_dev_get_intr_mode(enic->vdev)) { - case VNIC_DEV_INTR_MODE_INTX: - err = vnic_dev_notify_set(enic->vdev, ENIC_INTX_NOTIFY); - break; - case VNIC_DEV_INTR_MODE_MSIX: - err = vnic_dev_notify_set(enic->vdev, ENIC_MSIX_NOTIFY); - break; - default: - err = vnic_dev_notify_set(enic->vdev, -1 /* no intr */); - break; - } - - return err; -} - -static void enic_notify_timer_start(struct enic *enic) -{ - switch (vnic_dev_get_intr_mode(enic->vdev)) { - case VNIC_DEV_INTR_MODE_MSI: - mod_timer(&enic->notify_timer, jiffies); - break; - default: - /* Using intr for notification for INTx/MSI-X */ - break; - }; -} - -/* rtnl lock is held, process context */ -static int enic_open(struct net_device *netdev) -{ - struct enic *enic = netdev_priv(netdev); - unsigned int i; - int err; - - err = enic_request_intr(enic); - if (err) { - printk(KERN_ERR PFX "%s: Unable to request irq.\n", - netdev->name); - return err; - } - - err = enic_notify_set(enic); - if (err) { - printk(KERN_ERR PFX - "%s: Failed to alloc notify buffer, aborting.\n", - netdev->name); - goto err_out_free_intr; - } - - for (i = 0; i < enic->rq_count; i++) { - err = vnic_rq_fill(&enic->rq[i], enic_rq_alloc_buf); - if (err) { - printk(KERN_ERR PFX - "%s: Unable to alloc receive buffers.\n", - netdev->name); - goto err_out_notify_unset; - } - } - - for (i = 0; i < enic->wq_count; i++) - vnic_wq_enable(&enic->wq[i]); - for (i = 0; i < enic->rq_count; i++) - vnic_rq_enable(&enic->rq[i]); - - enic_add_station_addr(enic); - enic_set_multicast_list(netdev); - - netif_wake_queue(netdev); - napi_enable(&enic->napi); - vnic_dev_enable(enic->vdev); - - for (i = 0; i < enic->intr_count; i++) - vnic_intr_unmask(&enic->intr[i]); - - enic_notify_timer_start(enic); - - return 0; - -err_out_notify_unset: - vnic_dev_notify_unset(enic->vdev); -err_out_free_intr: - enic_free_intr(enic); - - return err; -} - -/* rtnl lock is held, process context */ -static int enic_stop(struct net_device *netdev) -{ - struct enic *enic = netdev_priv(netdev); - unsigned int i; - int err; - - del_timer_sync(&enic->notify_timer); - - vnic_dev_disable(enic->vdev); - napi_disable(&enic->napi); - netif_stop_queue(netdev); - - for (i = 0; i < enic->intr_count; i++) - vnic_intr_mask(&enic->intr[i]); - - for (i = 0; i < enic->wq_count; i++) { - err = vnic_wq_disable(&enic->wq[i]); - if (err) - return err; - } - for (i = 0; i < enic->rq_count; i++) { - err = vnic_rq_disable(&enic->rq[i]); - if (err) - return err; - } - - vnic_dev_notify_unset(enic->vdev); - enic_free_intr(enic); - - (void)vnic_cq_service(&enic->cq[ENIC_CQ_RQ], - -1, enic_rq_service_drop, NULL); - (void)vnic_cq_service(&enic->cq[ENIC_CQ_WQ], - -1, enic_wq_service, NULL); - - for (i = 0; i < enic->wq_count; i++) - vnic_wq_clean(&enic->wq[i], enic_free_wq_buf); - for (i = 0; i < enic->rq_count; i++) - vnic_rq_clean(&enic->rq[i], enic_free_rq_buf); - for (i = 0; i < enic->cq_count; i++) - vnic_cq_clean(&enic->cq[i]); - for (i = 0; i < enic->intr_count; i++) - vnic_intr_clean(&enic->intr[i]); - - return 0; -} - -static int enic_change_mtu(struct net_device *netdev, int new_mtu) -{ - struct enic *enic = netdev_priv(netdev); - int running = netif_running(netdev); - - if (new_mtu < ENIC_MIN_MTU || new_mtu > ENIC_MAX_MTU) - return -EINVAL; - - if (running) - enic_stop(netdev); - - netdev->mtu = new_mtu; - - if (netdev->mtu > enic->port_mtu) - printk(KERN_WARNING PFX - "%s: interface MTU (%d) set higher " - "than port MTU (%d)\n", - netdev->name, netdev->mtu, enic->port_mtu); - - if (running) - enic_open(netdev); - - return 0; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -static void enic_poll_controller(struct net_device *netdev) -{ - struct enic *enic = netdev_priv(netdev); - struct vnic_dev *vdev = enic->vdev; - - switch (vnic_dev_get_intr_mode(vdev)) { - case VNIC_DEV_INTR_MODE_MSIX: - enic_isr_msix_rq(enic->pdev->irq, enic); - enic_isr_msix_wq(enic->pdev->irq, enic); - break; - case VNIC_DEV_INTR_MODE_MSI: - enic_isr_msi(enic->pdev->irq, enic); - break; - case VNIC_DEV_INTR_MODE_INTX: - enic_isr_legacy(enic->pdev->irq, netdev); - break; - default: - break; - } -} -#endif - -static int enic_dev_wait(struct vnic_dev *vdev, - int (*start)(struct vnic_dev *, int), - int (*finished)(struct vnic_dev *, int *), - int arg) -{ - unsigned long time; - int done; - int err; - - BUG_ON(in_interrupt()); - - err = start(vdev, arg); - if (err) - return err; - - /* Wait for func to complete...2 seconds max - */ - - time = jiffies + (HZ * 2); - do { - - err = finished(vdev, &done); - if (err) - return err; - - if (done) - return 0; - - schedule_timeout_uninterruptible(HZ / 10); - - } while (time_after(time, jiffies)); - - return -ETIMEDOUT; -} - -static int enic_dev_open(struct enic *enic) -{ - int err; - - err = enic_dev_wait(enic->vdev, vnic_dev_open, - vnic_dev_open_done, 0); - if (err) - printk(KERN_ERR PFX - "vNIC device open failed, err %d.\n", err); - - return err; -} - -static int enic_dev_soft_reset(struct enic *enic) -{ - int err; - - err = enic_dev_wait(enic->vdev, vnic_dev_soft_reset, - vnic_dev_soft_reset_done, 0); - if (err) - printk(KERN_ERR PFX - "vNIC soft reset failed, err %d.\n", err); - - return err; -} - -static int enic_set_niccfg(struct enic *enic) -{ - const u8 rss_default_cpu = 0; - const u8 rss_hash_type = 0; - const u8 rss_hash_bits = 0; - const u8 rss_base_cpu = 0; - const u8 rss_enable = 0; - const u8 tso_ipid_split_en = 0; - const u8 ig_vlan_strip_en = 1; - - /* Enable VLAN tag stripping. RSS not enabled (yet). - */ - - return enic_set_nic_cfg(enic, - rss_default_cpu, rss_hash_type, - rss_hash_bits, rss_base_cpu, - rss_enable, tso_ipid_split_en, - ig_vlan_strip_en); -} - -static void enic_reset(struct work_struct *work) -{ - struct enic *enic = container_of(work, struct enic, reset); - - if (!netif_running(enic->netdev)) - return; - - rtnl_lock(); - - spin_lock(&enic->devcmd_lock); - vnic_dev_hang_notify(enic->vdev); - spin_unlock(&enic->devcmd_lock); - - enic_stop(enic->netdev); - enic_dev_soft_reset(enic); - vnic_dev_init(enic->vdev, 0); - enic_reset_mcaddrs(enic); - enic_init_vnic_resources(enic); - enic_set_niccfg(enic); - enic_open(enic->netdev); - - rtnl_unlock(); -} - -static int enic_set_intr_mode(struct enic *enic) -{ - unsigned int n = ARRAY_SIZE(enic->rq); - unsigned int m = ARRAY_SIZE(enic->wq); - unsigned int i; - - /* Set interrupt mode (INTx, MSI, MSI-X) depending - * system capabilities. - * - * Try MSI-X first - * - * We need n RQs, m WQs, n+m CQs, and n+m+2 INTRs - * (the second to last INTR is used for WQ/RQ errors) - * (the last INTR is used for notifications) - */ - - BUG_ON(ARRAY_SIZE(enic->msix_entry) < n + m + 2); - for (i = 0; i < n + m + 2; i++) - enic->msix_entry[i].entry = i; - - if (enic->config.intr_mode < 1 && - enic->rq_count >= n && - enic->wq_count >= m && - enic->cq_count >= n + m && - enic->intr_count >= n + m + 2 && - !pci_enable_msix(enic->pdev, enic->msix_entry, n + m + 2)) { - - enic->rq_count = n; - enic->wq_count = m; - enic->cq_count = n + m; - enic->intr_count = n + m + 2; - - vnic_dev_set_intr_mode(enic->vdev, VNIC_DEV_INTR_MODE_MSIX); - - return 0; - } - - /* Next try MSI - * - * We need 1 RQ, 1 WQ, 2 CQs, and 1 INTR - */ - - if (enic->config.intr_mode < 2 && - enic->rq_count >= 1 && - enic->wq_count >= 1 && - enic->cq_count >= 2 && - enic->intr_count >= 1 && - !pci_enable_msi(enic->pdev)) { - - enic->rq_count = 1; - enic->wq_count = 1; - enic->cq_count = 2; - enic->intr_count = 1; - - vnic_dev_set_intr_mode(enic->vdev, VNIC_DEV_INTR_MODE_MSI); - - return 0; - } - - /* Next try INTx - * - * We need 1 RQ, 1 WQ, 2 CQs, and 3 INTRs - * (the first INTR is used for WQ/RQ) - * (the second INTR is used for WQ/RQ errors) - * (the last INTR is used for notifications) - */ - - if (enic->config.intr_mode < 3 && - enic->rq_count >= 1 && - enic->wq_count >= 1 && - enic->cq_count >= 2 && - enic->intr_count >= 3) { - - enic->rq_count = 1; - enic->wq_count = 1; - enic->cq_count = 2; - enic->intr_count = 3; - - vnic_dev_set_intr_mode(enic->vdev, VNIC_DEV_INTR_MODE_INTX); - - return 0; - } - - vnic_dev_set_intr_mode(enic->vdev, VNIC_DEV_INTR_MODE_UNKNOWN); - - return -EINVAL; -} - -static void enic_clear_intr_mode(struct enic *enic) -{ - switch (vnic_dev_get_intr_mode(enic->vdev)) { - case VNIC_DEV_INTR_MODE_MSIX: - pci_disable_msix(enic->pdev); - break; - case VNIC_DEV_INTR_MODE_MSI: - pci_disable_msi(enic->pdev); - break; - default: - break; - } - - vnic_dev_set_intr_mode(enic->vdev, VNIC_DEV_INTR_MODE_UNKNOWN); -} - -static void enic_iounmap(struct enic *enic) -{ - if (enic->bar0.vaddr) - iounmap(enic->bar0.vaddr); -} - -static const struct net_device_ops enic_netdev_ops = { - .ndo_open = enic_open, - .ndo_stop = enic_stop, - .ndo_start_xmit = enic_hard_start_xmit, - .ndo_get_stats = enic_get_stats, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, - .ndo_set_multicast_list = enic_set_multicast_list, - .ndo_change_mtu = enic_change_mtu, - .ndo_vlan_rx_register = enic_vlan_rx_register, - .ndo_vlan_rx_add_vid = enic_vlan_rx_add_vid, - .ndo_vlan_rx_kill_vid = enic_vlan_rx_kill_vid, - .ndo_tx_timeout = enic_tx_timeout, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = enic_poll_controller, -#endif -}; - -static int __devinit enic_probe(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - struct net_device *netdev; - struct enic *enic; - int using_dac = 0; - unsigned int i; - int err; - - /* Allocate net device structure and initialize. Private - * instance data is initialized to zero. - */ - - netdev = alloc_etherdev(sizeof(struct enic)); - if (!netdev) { - printk(KERN_ERR PFX "Etherdev alloc failed, aborting.\n"); - return -ENOMEM; - } - - pci_set_drvdata(pdev, netdev); - - SET_NETDEV_DEV(netdev, &pdev->dev); - - enic = netdev_priv(netdev); - enic->netdev = netdev; - enic->pdev = pdev; - - /* Setup PCI resources - */ - - err = pci_enable_device(pdev); - if (err) { - printk(KERN_ERR PFX - "Cannot enable PCI device, aborting.\n"); - goto err_out_free_netdev; - } - - err = pci_request_regions(pdev, DRV_NAME); - if (err) { - printk(KERN_ERR PFX - "Cannot request PCI regions, aborting.\n"); - goto err_out_disable_device; - } - - pci_set_master(pdev); - - /* Query PCI controller on system for DMA addressing - * limitation for the device. Try 40-bit first, and - * fail to 32-bit. - */ - - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(40)); - if (err) { - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); - if (err) { - printk(KERN_ERR PFX - "No usable DMA configuration, aborting.\n"); - goto err_out_release_regions; - } - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); - if (err) { - printk(KERN_ERR PFX - "Unable to obtain 32-bit DMA " - "for consistent allocations, aborting.\n"); - goto err_out_release_regions; - } - } else { - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40)); - if (err) { - printk(KERN_ERR PFX - "Unable to obtain 40-bit DMA " - "for consistent allocations, aborting.\n"); - goto err_out_release_regions; - } - using_dac = 1; - } - - /* Map vNIC resources from BAR0 - */ - - if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { - printk(KERN_ERR PFX - "BAR0 not memory-map'able, aborting.\n"); - err = -ENODEV; - goto err_out_release_regions; - } - - enic->bar0.vaddr = pci_iomap(pdev, 0, enic->bar0.len); - enic->bar0.bus_addr = pci_resource_start(pdev, 0); - enic->bar0.len = pci_resource_len(pdev, 0); - - if (!enic->bar0.vaddr) { - printk(KERN_ERR PFX - "Cannot memory-map BAR0 res hdr, aborting.\n"); - err = -ENODEV; - goto err_out_release_regions; - } - - /* Register vNIC device - */ - - enic->vdev = vnic_dev_register(NULL, enic, pdev, &enic->bar0); - if (!enic->vdev) { - printk(KERN_ERR PFX - "vNIC registration failed, aborting.\n"); - err = -ENODEV; - goto err_out_iounmap; - } - - /* Issue device open to get device in known state - */ - - err = enic_dev_open(enic); - if (err) { - printk(KERN_ERR PFX - "vNIC dev open failed, aborting.\n"); - goto err_out_vnic_unregister; - } - - /* Issue device init to initialize the vnic-to-switch link. - * We'll start with carrier off and wait for link UP - * notification later to turn on carrier. We don't need - * to wait here for the vnic-to-switch link initialization - * to complete; link UP notification is the indication that - * the process is complete. - */ - - netif_carrier_off(netdev); - - err = vnic_dev_init(enic->vdev, 0); - if (err) { - printk(KERN_ERR PFX - "vNIC dev init failed, aborting.\n"); - goto err_out_dev_close; - } - - /* Get vNIC configuration - */ - - err = enic_get_vnic_config(enic); - if (err) { - printk(KERN_ERR PFX - "Get vNIC configuration failed, aborting.\n"); - goto err_out_dev_close; - } - - /* Get available resource counts - */ - - enic_get_res_counts(enic); - - /* Set interrupt mode based on resource counts and system - * capabilities - */ - - err = enic_set_intr_mode(enic); - if (err) { - printk(KERN_ERR PFX - "Failed to set intr mode, aborting.\n"); - goto err_out_dev_close; - } - - /* Allocate and configure vNIC resources - */ - - err = enic_alloc_vnic_resources(enic); - if (err) { - printk(KERN_ERR PFX - "Failed to alloc vNIC resources, aborting.\n"); - goto err_out_free_vnic_resources; - } - - enic_init_vnic_resources(enic); - - err = enic_set_niccfg(enic); - if (err) { - printk(KERN_ERR PFX - "Failed to config nic, aborting.\n"); - goto err_out_free_vnic_resources; - } - - /* Setup notification timer, HW reset task, and locks - */ - - init_timer(&enic->notify_timer); - enic->notify_timer.function = enic_notify_timer; - enic->notify_timer.data = (unsigned long)enic; - - INIT_WORK(&enic->reset, enic_reset); - - for (i = 0; i < enic->wq_count; i++) - spin_lock_init(&enic->wq_lock[i]); - - spin_lock_init(&enic->devcmd_lock); - - /* Register net device - */ - - enic->port_mtu = enic->config.mtu; - (void)enic_change_mtu(netdev, enic->port_mtu); - - err = enic_set_mac_addr(netdev, enic->mac_addr); - if (err) { - printk(KERN_ERR PFX - "Invalid MAC address, aborting.\n"); - goto err_out_free_vnic_resources; - } - - netdev->netdev_ops = &enic_netdev_ops; - netdev->watchdog_timeo = 2 * HZ; - netdev->ethtool_ops = &enic_ethtool_ops; - - switch (vnic_dev_get_intr_mode(enic->vdev)) { - default: - netif_napi_add(netdev, &enic->napi, enic_poll, 64); - break; - case VNIC_DEV_INTR_MODE_MSIX: - netif_napi_add(netdev, &enic->napi, enic_poll_msix, 64); - break; - } - - netdev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; - if (ENIC_SETTING(enic, TXCSUM)) - netdev->features |= NETIF_F_SG | NETIF_F_HW_CSUM; - if (ENIC_SETTING(enic, TSO)) - netdev->features |= NETIF_F_TSO | - NETIF_F_TSO6 | NETIF_F_TSO_ECN; - if (ENIC_SETTING(enic, LRO)) - netdev->features |= NETIF_F_LRO; - if (using_dac) - netdev->features |= NETIF_F_HIGHDMA; - - enic->csum_rx_enabled = ENIC_SETTING(enic, RXCSUM); - - enic->lro_mgr.max_aggr = ENIC_LRO_MAX_AGGR; - enic->lro_mgr.max_desc = ENIC_LRO_MAX_DESC; - enic->lro_mgr.lro_arr = enic->lro_desc; - enic->lro_mgr.get_skb_header = enic_get_skb_header; - enic->lro_mgr.features = LRO_F_NAPI | LRO_F_EXTRACT_VLAN_ID; - enic->lro_mgr.dev = netdev; - enic->lro_mgr.ip_summed = CHECKSUM_COMPLETE; - enic->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY; - - err = register_netdev(netdev); - if (err) { - printk(KERN_ERR PFX - "Cannot register net device, aborting.\n"); - goto err_out_free_vnic_resources; - } - - return 0; - -err_out_free_vnic_resources: - enic_free_vnic_resources(enic); -err_out_dev_close: - vnic_dev_close(enic->vdev); -err_out_vnic_unregister: - enic_clear_intr_mode(enic); - vnic_dev_unregister(enic->vdev); -err_out_iounmap: - enic_iounmap(enic); -err_out_release_regions: - pci_release_regions(pdev); -err_out_disable_device: - pci_disable_device(pdev); -err_out_free_netdev: - pci_set_drvdata(pdev, NULL); - free_netdev(netdev); - - return err; -} - -static void __devexit enic_remove(struct pci_dev *pdev) -{ - struct net_device *netdev = pci_get_drvdata(pdev); - - if (netdev) { - struct enic *enic = netdev_priv(netdev); - - flush_scheduled_work(); - unregister_netdev(netdev); - enic_free_vnic_resources(enic); - vnic_dev_close(enic->vdev); - enic_clear_intr_mode(enic); - vnic_dev_unregister(enic->vdev); - enic_iounmap(enic); - pci_release_regions(pdev); - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); - free_netdev(netdev); - } -} - -static struct pci_driver enic_driver = { - .name = DRV_NAME, - .id_table = enic_id_table, - .probe = enic_probe, - .remove = __devexit_p(enic_remove), -}; - -static int __init enic_init_module(void) -{ - printk(KERN_INFO PFX "%s, ver %s\n", DRV_DESCRIPTION, DRV_VERSION); - - return pci_register_driver(&enic_driver); -} - -static void __exit enic_cleanup_module(void) -{ - pci_unregister_driver(&enic_driver); -} - -module_init(enic_init_module); -module_exit(enic_cleanup_module); diff --git a/drivers/net/enic/enic_res.c b/drivers/net/enic/enic_res.c deleted file mode 100644 index e5fc9384f8f..00000000000 --- a/drivers/net/enic/enic_res.c +++ /dev/null @@ -1,367 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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/kernel.h> -#include <linux/errno.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/netdevice.h> - -#include "wq_enet_desc.h" -#include "rq_enet_desc.h" -#include "cq_enet_desc.h" -#include "vnic_resource.h" -#include "vnic_enet.h" -#include "vnic_dev.h" -#include "vnic_wq.h" -#include "vnic_rq.h" -#include "vnic_cq.h" -#include "vnic_intr.h" -#include "vnic_stats.h" -#include "vnic_nic.h" -#include "vnic_rss.h" -#include "enic_res.h" -#include "enic.h" - -int enic_get_vnic_config(struct enic *enic) -{ - struct vnic_enet_config *c = &enic->config; - int err; - - err = vnic_dev_mac_addr(enic->vdev, enic->mac_addr); - if (err) { - printk(KERN_ERR PFX "Error getting MAC addr, %d\n", err); - return err; - } - -#define GET_CONFIG(m) \ - do { \ - err = vnic_dev_spec(enic->vdev, \ - offsetof(struct vnic_enet_config, m), \ - sizeof(c->m), &c->m); \ - if (err) { \ - printk(KERN_ERR PFX \ - "Error getting %s, %d\n", #m, err); \ - return err; \ - } \ - } while (0) - - GET_CONFIG(flags); - GET_CONFIG(wq_desc_count); - GET_CONFIG(rq_desc_count); - GET_CONFIG(mtu); - GET_CONFIG(intr_timer); - GET_CONFIG(intr_timer_type); - GET_CONFIG(intr_mode); - - c->wq_desc_count = - min_t(u32, ENIC_MAX_WQ_DESCS, - max_t(u32, ENIC_MIN_WQ_DESCS, - c->wq_desc_count)); - c->wq_desc_count &= 0xfffffff0; /* must be aligned to groups of 16 */ - - c->rq_desc_count = - min_t(u32, ENIC_MAX_RQ_DESCS, - max_t(u32, ENIC_MIN_RQ_DESCS, - c->rq_desc_count)); - c->rq_desc_count &= 0xfffffff0; /* must be aligned to groups of 16 */ - - if (c->mtu == 0) - c->mtu = 1500; - c->mtu = min_t(u16, ENIC_MAX_MTU, - max_t(u16, ENIC_MIN_MTU, - c->mtu)); - - c->intr_timer = min_t(u16, VNIC_INTR_TIMER_MAX, c->intr_timer); - - printk(KERN_INFO PFX "vNIC MAC addr %pM wq/rq %d/%d\n", - enic->mac_addr, c->wq_desc_count, c->rq_desc_count); - printk(KERN_INFO PFX "vNIC mtu %d csum tx/rx %d/%d tso/lro %d/%d " - "intr timer %d\n", - c->mtu, ENIC_SETTING(enic, TXCSUM), - ENIC_SETTING(enic, RXCSUM), ENIC_SETTING(enic, TSO), - ENIC_SETTING(enic, LRO), c->intr_timer); - - return 0; -} - -void enic_add_station_addr(struct enic *enic) -{ - vnic_dev_add_addr(enic->vdev, enic->mac_addr); -} - -void enic_add_multicast_addr(struct enic *enic, u8 *addr) -{ - vnic_dev_add_addr(enic->vdev, addr); -} - -void enic_del_multicast_addr(struct enic *enic, u8 *addr) -{ - vnic_dev_del_addr(enic->vdev, addr); -} - -void enic_add_vlan(struct enic *enic, u16 vlanid) -{ - u64 a0 = vlanid, a1 = 0; - int wait = 1000; - int err; - - err = vnic_dev_cmd(enic->vdev, CMD_VLAN_ADD, &a0, &a1, wait); - if (err) - printk(KERN_ERR PFX "Can't add vlan id, %d\n", err); -} - -void enic_del_vlan(struct enic *enic, u16 vlanid) -{ - u64 a0 = vlanid, a1 = 0; - int wait = 1000; - int err; - - err = vnic_dev_cmd(enic->vdev, CMD_VLAN_DEL, &a0, &a1, wait); - if (err) - printk(KERN_ERR PFX "Can't delete vlan id, %d\n", err); -} - -int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type, - u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en, - u8 ig_vlan_strip_en) -{ - u64 a0, a1; - u32 nic_cfg; - int wait = 1000; - - vnic_set_nic_cfg(&nic_cfg, rss_default_cpu, - rss_hash_type, rss_hash_bits, rss_base_cpu, - rss_enable, tso_ipid_split_en, ig_vlan_strip_en); - - a0 = nic_cfg; - a1 = 0; - - return vnic_dev_cmd(enic->vdev, CMD_NIC_CFG, &a0, &a1, wait); -} - -void enic_free_vnic_resources(struct enic *enic) -{ - unsigned int i; - - for (i = 0; i < enic->wq_count; i++) - vnic_wq_free(&enic->wq[i]); - for (i = 0; i < enic->rq_count; i++) - vnic_rq_free(&enic->rq[i]); - for (i = 0; i < enic->cq_count; i++) - vnic_cq_free(&enic->cq[i]); - for (i = 0; i < enic->intr_count; i++) - vnic_intr_free(&enic->intr[i]); -} - -void enic_get_res_counts(struct enic *enic) -{ - enic->wq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_WQ); - enic->rq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_RQ); - enic->cq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_CQ); - enic->intr_count = vnic_dev_get_res_count(enic->vdev, - RES_TYPE_INTR_CTRL); - - printk(KERN_INFO PFX "vNIC resources avail: " - "wq %d rq %d cq %d intr %d\n", - enic->wq_count, enic->rq_count, - enic->cq_count, enic->intr_count); -} - -void enic_init_vnic_resources(struct enic *enic) -{ - enum vnic_dev_intr_mode intr_mode; - unsigned int mask_on_assertion; - unsigned int interrupt_offset; - unsigned int error_interrupt_enable; - unsigned int error_interrupt_offset; - unsigned int cq_index; - unsigned int i; - - intr_mode = vnic_dev_get_intr_mode(enic->vdev); - - /* Init RQ/WQ resources. - * - * RQ[0 - n-1] point to CQ[0 - n-1] - * WQ[0 - m-1] point to CQ[n - n+m-1] - * - * Error interrupt is not enabled for MSI. - */ - - switch (intr_mode) { - case VNIC_DEV_INTR_MODE_INTX: - case VNIC_DEV_INTR_MODE_MSIX: - error_interrupt_enable = 1; - error_interrupt_offset = enic->intr_count - 2; - break; - default: - error_interrupt_enable = 0; - error_interrupt_offset = 0; - break; - } - - for (i = 0; i < enic->rq_count; i++) { - cq_index = i; - vnic_rq_init(&enic->rq[i], - cq_index, - error_interrupt_enable, - error_interrupt_offset); - } - - for (i = 0; i < enic->wq_count; i++) { - cq_index = enic->rq_count + i; - vnic_wq_init(&enic->wq[i], - cq_index, - error_interrupt_enable, - error_interrupt_offset); - } - - /* Init CQ resources - * - * CQ[0 - n+m-1] point to INTR[0] for INTx, MSI - * CQ[0 - n+m-1] point to INTR[0 - n+m-1] for MSI-X - */ - - for (i = 0; i < enic->cq_count; i++) { - - switch (intr_mode) { - case VNIC_DEV_INTR_MODE_MSIX: - interrupt_offset = i; - break; - default: - interrupt_offset = 0; - break; - } - - vnic_cq_init(&enic->cq[i], - 0 /* flow_control_enable */, - 1 /* color_enable */, - 0 /* cq_head */, - 0 /* cq_tail */, - 1 /* cq_tail_color */, - 1 /* interrupt_enable */, - 1 /* cq_entry_enable */, - 0 /* cq_message_enable */, - interrupt_offset, - 0 /* cq_message_addr */); - } - - /* Init INTR resources - * - * mask_on_assertion is not used for INTx due to the level- - * triggered nature of INTx - */ - - switch (intr_mode) { - case VNIC_DEV_INTR_MODE_MSI: - case VNIC_DEV_INTR_MODE_MSIX: - mask_on_assertion = 1; - break; - default: - mask_on_assertion = 0; - break; - } - - for (i = 0; i < enic->intr_count; i++) { - vnic_intr_init(&enic->intr[i], - enic->config.intr_timer, - enic->config.intr_timer_type, - mask_on_assertion); - } - - /* Clear LIF stats - */ - - vnic_dev_stats_clear(enic->vdev); -} - -int enic_alloc_vnic_resources(struct enic *enic) -{ - enum vnic_dev_intr_mode intr_mode; - unsigned int i; - int err; - - intr_mode = vnic_dev_get_intr_mode(enic->vdev); - - printk(KERN_INFO PFX "vNIC resources used: " - "wq %d rq %d cq %d intr %d intr mode %s\n", - enic->wq_count, enic->rq_count, - enic->cq_count, enic->intr_count, - intr_mode == VNIC_DEV_INTR_MODE_INTX ? "legacy PCI INTx" : - intr_mode == VNIC_DEV_INTR_MODE_MSI ? "MSI" : - intr_mode == VNIC_DEV_INTR_MODE_MSIX ? "MSI-X" : - "unknown" - ); - - /* Allocate queue resources - */ - - for (i = 0; i < enic->wq_count; i++) { - err = vnic_wq_alloc(enic->vdev, &enic->wq[i], i, - enic->config.wq_desc_count, - sizeof(struct wq_enet_desc)); - if (err) - goto err_out_cleanup; - } - - for (i = 0; i < enic->rq_count; i++) { - err = vnic_rq_alloc(enic->vdev, &enic->rq[i], i, - enic->config.rq_desc_count, - sizeof(struct rq_enet_desc)); - if (err) - goto err_out_cleanup; - } - - for (i = 0; i < enic->cq_count; i++) { - if (i < enic->rq_count) - err = vnic_cq_alloc(enic->vdev, &enic->cq[i], i, - enic->config.rq_desc_count, - sizeof(struct cq_enet_rq_desc)); - else - err = vnic_cq_alloc(enic->vdev, &enic->cq[i], i, - enic->config.wq_desc_count, - sizeof(struct cq_enet_wq_desc)); - if (err) - goto err_out_cleanup; - } - - for (i = 0; i < enic->intr_count; i++) { - err = vnic_intr_alloc(enic->vdev, &enic->intr[i], i); - if (err) - goto err_out_cleanup; - } - - /* Hook remaining resource - */ - - enic->legacy_pba = vnic_dev_get_res(enic->vdev, - RES_TYPE_INTR_PBA_LEGACY, 0); - if (!enic->legacy_pba && intr_mode == VNIC_DEV_INTR_MODE_INTX) { - printk(KERN_ERR PFX "Failed to hook legacy pba resource\n"); - err = -ENODEV; - goto err_out_cleanup; - } - - return 0; - -err_out_cleanup: - enic_free_vnic_resources(enic); - - return err; -} diff --git a/drivers/net/enic/enic_res.h b/drivers/net/enic/enic_res.h deleted file mode 100644 index 7bf272fa859..00000000000 --- a/drivers/net/enic/enic_res.h +++ /dev/null @@ -1,147 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _ENIC_RES_H_ -#define _ENIC_RES_H_ - -#include "wq_enet_desc.h" -#include "rq_enet_desc.h" -#include "vnic_wq.h" -#include "vnic_rq.h" - -#define ENIC_MIN_WQ_DESCS 64 -#define ENIC_MAX_WQ_DESCS 4096 -#define ENIC_MIN_RQ_DESCS 64 -#define ENIC_MAX_RQ_DESCS 4096 - -#define ENIC_MIN_MTU 576 /* minimum for IPv4 */ -#define ENIC_MAX_MTU 9000 - -#define ENIC_MULTICAST_PERFECT_FILTERS 32 - -#define ENIC_NON_TSO_MAX_DESC 16 - -#define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0) - -static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq, - void *os_buf, dma_addr_t dma_addr, unsigned int len, - unsigned int mss_or_csum_offset, unsigned int hdr_len, - int vlan_tag_insert, unsigned int vlan_tag, - int offload_mode, int cq_entry, int sop, int eop) -{ - struct wq_enet_desc *desc = vnic_wq_next_desc(wq); - - wq_enet_desc_enc(desc, - (u64)dma_addr | VNIC_PADDR_TARGET, - (u16)len, - (u16)mss_or_csum_offset, - (u16)hdr_len, (u8)offload_mode, - (u8)eop, (u8)cq_entry, - 0, /* fcoe_encap */ - (u8)vlan_tag_insert, - (u16)vlan_tag, - 0 /* loopback */); - - vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop); -} - -static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq, - void *os_buf, dma_addr_t dma_addr, unsigned int len, int eop) -{ - enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len, - 0, 0, 0, 0, 0, - eop, 0 /* !SOP */, eop); -} - -static inline void enic_queue_wq_desc(struct vnic_wq *wq, void *os_buf, - dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert, - unsigned int vlan_tag, int eop) -{ - enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len, - 0, 0, vlan_tag_insert, vlan_tag, - WQ_ENET_OFFLOAD_MODE_CSUM, - eop, 1 /* SOP */, eop); -} - -static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq, - void *os_buf, dma_addr_t dma_addr, unsigned int len, - int ip_csum, int tcpudp_csum, int vlan_tag_insert, - unsigned int vlan_tag, int eop) -{ - enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len, - (ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0), - 0, vlan_tag_insert, vlan_tag, - WQ_ENET_OFFLOAD_MODE_CSUM, - eop, 1 /* SOP */, eop); -} - -static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq, - void *os_buf, dma_addr_t dma_addr, unsigned int len, - unsigned int csum_offset, unsigned int hdr_len, - int vlan_tag_insert, unsigned int vlan_tag, int eop) -{ - enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len, - csum_offset, hdr_len, vlan_tag_insert, vlan_tag, - WQ_ENET_OFFLOAD_MODE_CSUM_L4, - eop, 1 /* SOP */, eop); -} - -static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq, - void *os_buf, dma_addr_t dma_addr, unsigned int len, - unsigned int mss, unsigned int hdr_len, int vlan_tag_insert, - unsigned int vlan_tag, int eop) -{ - enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len, - mss, hdr_len, vlan_tag_insert, vlan_tag, - WQ_ENET_OFFLOAD_MODE_TSO, - eop, 1 /* SOP */, eop); -} - -static inline void enic_queue_rq_desc(struct vnic_rq *rq, - void *os_buf, unsigned int os_buf_index, - dma_addr_t dma_addr, unsigned int len) -{ - struct rq_enet_desc *desc = vnic_rq_next_desc(rq); - u8 type = os_buf_index ? - RQ_ENET_TYPE_NOT_SOP : RQ_ENET_TYPE_ONLY_SOP; - - rq_enet_desc_enc(desc, - (u64)dma_addr | VNIC_PADDR_TARGET, - type, (u16)len); - - vnic_rq_post(rq, os_buf, os_buf_index, dma_addr, len); -} - -struct enic; - -int enic_get_vnic_config(struct enic *); -void enic_add_station_addr(struct enic *enic); -void enic_add_multicast_addr(struct enic *enic, u8 *addr); -void enic_del_multicast_addr(struct enic *enic, u8 *addr); -void enic_add_vlan(struct enic *enic, u16 vlanid); -void enic_del_vlan(struct enic *enic, u16 vlanid); -int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type, - u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en, - u8 ig_vlan_strip_en); -void enic_get_res_counts(struct enic *enic); -void enic_init_vnic_resources(struct enic *enic); -int enic_alloc_vnic_resources(struct enic *); -void enic_free_vnic_resources(struct enic *); - -#endif /* _ENIC_RES_H_ */ diff --git a/drivers/net/enic/rq_enet_desc.h b/drivers/net/enic/rq_enet_desc.h deleted file mode 100644 index a06e649010c..00000000000 --- a/drivers/net/enic/rq_enet_desc.h +++ /dev/null @@ -1,60 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _RQ_ENET_DESC_H_ -#define _RQ_ENET_DESC_H_ - -/* Ethernet receive queue descriptor: 16B */ -struct rq_enet_desc { - __le64 address; - __le16 length_type; - u8 reserved[6]; -}; - -enum rq_enet_type_types { - RQ_ENET_TYPE_ONLY_SOP = 0, - RQ_ENET_TYPE_NOT_SOP = 1, - RQ_ENET_TYPE_RESV2 = 2, - RQ_ENET_TYPE_RESV3 = 3, -}; - -#define RQ_ENET_ADDR_BITS 64 -#define RQ_ENET_LEN_BITS 14 -#define RQ_ENET_LEN_MASK ((1 << RQ_ENET_LEN_BITS) - 1) -#define RQ_ENET_TYPE_BITS 2 -#define RQ_ENET_TYPE_MASK ((1 << RQ_ENET_TYPE_BITS) - 1) - -static inline void rq_enet_desc_enc(struct rq_enet_desc *desc, - u64 address, u8 type, u16 length) -{ - desc->address = cpu_to_le64(address); - desc->length_type = cpu_to_le16((length & RQ_ENET_LEN_MASK) | - ((type & RQ_ENET_TYPE_MASK) << RQ_ENET_LEN_BITS)); -} - -static inline void rq_enet_desc_dec(struct rq_enet_desc *desc, - u64 *address, u8 *type, u16 *length) -{ - *address = le64_to_cpu(desc->address); - *length = le16_to_cpu(desc->length_type) & RQ_ENET_LEN_MASK; - *type = (u8)((le16_to_cpu(desc->length_type) >> RQ_ENET_LEN_BITS) & - RQ_ENET_TYPE_MASK); -} - -#endif /* _RQ_ENET_DESC_H_ */ diff --git a/drivers/net/enic/vnic_cq.c b/drivers/net/enic/vnic_cq.c deleted file mode 100644 index 020ae6c3f3d..00000000000 --- a/drivers/net/enic/vnic_cq.c +++ /dev/null @@ -1,89 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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/kernel.h> -#include <linux/errno.h> -#include <linux/types.h> -#include <linux/pci.h> - -#include "vnic_dev.h" -#include "vnic_cq.h" - -void vnic_cq_free(struct vnic_cq *cq) -{ - vnic_dev_free_desc_ring(cq->vdev, &cq->ring); - - cq->ctrl = NULL; -} - -int vnic_cq_alloc(struct vnic_dev *vdev, struct vnic_cq *cq, unsigned int index, - unsigned int desc_count, unsigned int desc_size) -{ - int err; - - cq->index = index; - cq->vdev = vdev; - - cq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_CQ, index); - if (!cq->ctrl) { - printk(KERN_ERR "Failed to hook CQ[%d] resource\n", index); - return -EINVAL; - } - - err = vnic_dev_alloc_desc_ring(vdev, &cq->ring, desc_count, desc_size); - if (err) - return err; - - return 0; -} - -void vnic_cq_init(struct vnic_cq *cq, unsigned int flow_control_enable, - unsigned int color_enable, unsigned int cq_head, unsigned int cq_tail, - unsigned int cq_tail_color, unsigned int interrupt_enable, - unsigned int cq_entry_enable, unsigned int cq_message_enable, - unsigned int interrupt_offset, u64 cq_message_addr) -{ - u64 paddr; - - paddr = (u64)cq->ring.base_addr | VNIC_PADDR_TARGET; - writeq(paddr, &cq->ctrl->ring_base); - iowrite32(cq->ring.desc_count, &cq->ctrl->ring_size); - iowrite32(flow_control_enable, &cq->ctrl->flow_control_enable); - iowrite32(color_enable, &cq->ctrl->color_enable); - iowrite32(cq_head, &cq->ctrl->cq_head); - iowrite32(cq_tail, &cq->ctrl->cq_tail); - iowrite32(cq_tail_color, &cq->ctrl->cq_tail_color); - iowrite32(interrupt_enable, &cq->ctrl->interrupt_enable); - iowrite32(cq_entry_enable, &cq->ctrl->cq_entry_enable); - iowrite32(cq_message_enable, &cq->ctrl->cq_message_enable); - iowrite32(interrupt_offset, &cq->ctrl->interrupt_offset); - writeq(cq_message_addr, &cq->ctrl->cq_message_addr); -} - -void vnic_cq_clean(struct vnic_cq *cq) -{ - cq->to_clean = 0; - cq->last_color = 0; - - iowrite32(0, &cq->ctrl->cq_head); - iowrite32(0, &cq->ctrl->cq_tail); - iowrite32(1, &cq->ctrl->cq_tail_color); - - vnic_dev_clear_desc_ring(&cq->ring); -} diff --git a/drivers/net/enic/vnic_cq.h b/drivers/net/enic/vnic_cq.h deleted file mode 100644 index 114763cbc2f..00000000000 --- a/drivers/net/enic/vnic_cq.h +++ /dev/null @@ -1,113 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _VNIC_CQ_H_ -#define _VNIC_CQ_H_ - -#include "cq_desc.h" -#include "vnic_dev.h" - -/* Completion queue control */ -struct vnic_cq_ctrl { - u64 ring_base; /* 0x00 */ - u32 ring_size; /* 0x08 */ - u32 pad0; - u32 flow_control_enable; /* 0x10 */ - u32 pad1; - u32 color_enable; /* 0x18 */ - u32 pad2; - u32 cq_head; /* 0x20 */ - u32 pad3; - u32 cq_tail; /* 0x28 */ - u32 pad4; - u32 cq_tail_color; /* 0x30 */ - u32 pad5; - u32 interrupt_enable; /* 0x38 */ - u32 pad6; - u32 cq_entry_enable; /* 0x40 */ - u32 pad7; - u32 cq_message_enable; /* 0x48 */ - u32 pad8; - u32 interrupt_offset; /* 0x50 */ - u32 pad9; - u64 cq_message_addr; /* 0x58 */ - u32 pad10; -}; - -struct vnic_cq { - unsigned int index; - struct vnic_dev *vdev; - struct vnic_cq_ctrl __iomem *ctrl; /* memory-mapped */ - struct vnic_dev_ring ring; - unsigned int to_clean; - unsigned int last_color; -}; - -static inline unsigned int vnic_cq_service(struct vnic_cq *cq, - unsigned int work_to_do, - int (*q_service)(struct vnic_dev *vdev, struct cq_desc *cq_desc, - u8 type, u16 q_number, u16 completed_index, void *opaque), - void *opaque) -{ - struct cq_desc *cq_desc; - unsigned int work_done = 0; - u16 q_number, completed_index; - u8 type, color; - - cq_desc = (struct cq_desc *)((u8 *)cq->ring.descs + - cq->ring.desc_size * cq->to_clean); - cq_desc_dec(cq_desc, &type, &color, - &q_number, &completed_index); - - while (color != cq->last_color) { - - if ((*q_service)(cq->vdev, cq_desc, type, - q_number, completed_index, opaque)) - break; - - cq->to_clean++; - if (cq->to_clean == cq->ring.desc_count) { - cq->to_clean = 0; - cq->last_color = cq->last_color ? 0 : 1; - } - - cq_desc = (struct cq_desc *)((u8 *)cq->ring.descs + - cq->ring.desc_size * cq->to_clean); - cq_desc_dec(cq_desc, &type, &color, - &q_number, &completed_index); - - work_done++; - if (work_done >= work_to_do) - break; - } - - return work_done; -} - -void vnic_cq_free(struct vnic_cq *cq); -int vnic_cq_alloc(struct vnic_dev *vdev, struct vnic_cq *cq, unsigned int index, - unsigned int desc_count, unsigned int desc_size); -void vnic_cq_init(struct vnic_cq *cq, unsigned int flow_control_enable, - unsigned int color_enable, unsigned int cq_head, unsigned int cq_tail, - unsigned int cq_tail_color, unsigned int interrupt_enable, - unsigned int cq_entry_enable, unsigned int message_enable, - unsigned int interrupt_offset, u64 message_addr); -void vnic_cq_clean(struct vnic_cq *cq); - -#endif /* _VNIC_CQ_H_ */ diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c deleted file mode 100644 index e21b9d636ae..00000000000 --- a/drivers/net/enic/vnic_dev.c +++ /dev/null @@ -1,717 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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/kernel.h> -#include <linux/errno.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/if_ether.h> - -#include "vnic_resource.h" -#include "vnic_devcmd.h" -#include "vnic_dev.h" -#include "vnic_stats.h" - -struct vnic_res { - void __iomem *vaddr; - unsigned int count; -}; - -#define VNIC_DEV_CAP_INIT 0x0001 -#define VNIC_DEV_CAP_PERBI 0x0002 - -struct vnic_dev { - void *priv; - struct pci_dev *pdev; - struct vnic_res res[RES_TYPE_MAX]; - enum vnic_dev_intr_mode intr_mode; - struct vnic_devcmd __iomem *devcmd; - struct vnic_devcmd_notify *notify; - struct vnic_devcmd_notify notify_copy; - dma_addr_t notify_pa; - u32 notify_sz; - u32 *linkstatus; - dma_addr_t linkstatus_pa; - struct vnic_stats *stats; - dma_addr_t stats_pa; - struct vnic_devcmd_fw_info *fw_info; - dma_addr_t fw_info_pa; - u32 cap_flags; -}; - -#define VNIC_MAX_RES_HDR_SIZE \ - (sizeof(struct vnic_resource_header) + \ - sizeof(struct vnic_resource) * RES_TYPE_MAX) -#define VNIC_RES_STRIDE 128 - -void *vnic_dev_priv(struct vnic_dev *vdev) -{ - return vdev->priv; -} - -static int vnic_dev_discover_res(struct vnic_dev *vdev, - struct vnic_dev_bar *bar) -{ - struct vnic_resource_header __iomem *rh; - struct vnic_resource __iomem *r; - u8 type; - - if (bar->len < VNIC_MAX_RES_HDR_SIZE) { - printk(KERN_ERR "vNIC BAR0 res hdr length error\n"); - return -EINVAL; - } - - rh = bar->vaddr; - if (!rh) { - printk(KERN_ERR "vNIC BAR0 res hdr not mem-mapped\n"); - return -EINVAL; - } - - if (ioread32(&rh->magic) != VNIC_RES_MAGIC || - ioread32(&rh->version) != VNIC_RES_VERSION) { - printk(KERN_ERR "vNIC BAR0 res magic/version error " - "exp (%lx/%lx) curr (%x/%x)\n", - VNIC_RES_MAGIC, VNIC_RES_VERSION, - ioread32(&rh->magic), ioread32(&rh->version)); - return -EINVAL; - } - - r = (struct vnic_resource __iomem *)(rh + 1); - - while ((type = ioread8(&r->type)) != RES_TYPE_EOL) { - - u8 bar_num = ioread8(&r->bar); - u32 bar_offset = ioread32(&r->bar_offset); - u32 count = ioread32(&r->count); - u32 len; - - r++; - - if (bar_num != 0) /* only mapping in BAR0 resources */ - continue; - - switch (type) { - case RES_TYPE_WQ: - case RES_TYPE_RQ: - case RES_TYPE_CQ: - case RES_TYPE_INTR_CTRL: - /* each count is stride bytes long */ - len = count * VNIC_RES_STRIDE; - if (len + bar_offset > bar->len) { - printk(KERN_ERR "vNIC BAR0 resource %d " - "out-of-bounds, offset 0x%x + " - "size 0x%x > bar len 0x%lx\n", - type, bar_offset, - len, - bar->len); - return -EINVAL; - } - break; - case RES_TYPE_INTR_PBA_LEGACY: - case RES_TYPE_DEVCMD: - len = count; - break; - default: - continue; - } - - vdev->res[type].count = count; - vdev->res[type].vaddr = (char __iomem *)bar->vaddr + bar_offset; - } - - return 0; -} - -unsigned int vnic_dev_get_res_count(struct vnic_dev *vdev, - enum vnic_res_type type) -{ - return vdev->res[type].count; -} - -void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type, - unsigned int index) -{ - if (!vdev->res[type].vaddr) - return NULL; - - switch (type) { - case RES_TYPE_WQ: - case RES_TYPE_RQ: - case RES_TYPE_CQ: - case RES_TYPE_INTR_CTRL: - return (char __iomem *)vdev->res[type].vaddr + - index * VNIC_RES_STRIDE; - default: - return (char __iomem *)vdev->res[type].vaddr; - } -} - -unsigned int vnic_dev_desc_ring_size(struct vnic_dev_ring *ring, - unsigned int desc_count, unsigned int desc_size) -{ - /* The base address of the desc rings must be 512 byte aligned. - * Descriptor count is aligned to groups of 32 descriptors. A - * count of 0 means the maximum 4096 descriptors. Descriptor - * size is aligned to 16 bytes. - */ - - unsigned int count_align = 32; - unsigned int desc_align = 16; - - ring->base_align = 512; - - if (desc_count == 0) - desc_count = 4096; - - ring->desc_count = ALIGN(desc_count, count_align); - - ring->desc_size = ALIGN(desc_size, desc_align); - - ring->size = ring->desc_count * ring->desc_size; - ring->size_unaligned = ring->size + ring->base_align; - - return ring->size_unaligned; -} - -void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring) -{ - memset(ring->descs, 0, ring->size); -} - -int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring, - unsigned int desc_count, unsigned int desc_size) -{ - vnic_dev_desc_ring_size(ring, desc_count, desc_size); - - ring->descs_unaligned = pci_alloc_consistent(vdev->pdev, - ring->size_unaligned, - &ring->base_addr_unaligned); - - if (!ring->descs_unaligned) { - printk(KERN_ERR - "Failed to allocate ring (size=%d), aborting\n", - (int)ring->size); - return -ENOMEM; - } - - ring->base_addr = ALIGN(ring->base_addr_unaligned, - ring->base_align); - ring->descs = (u8 *)ring->descs_unaligned + - (ring->base_addr - ring->base_addr_unaligned); - - vnic_dev_clear_desc_ring(ring); - - ring->desc_avail = ring->desc_count - 1; - - return 0; -} - -void vnic_dev_free_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring) -{ - if (ring->descs) { - pci_free_consistent(vdev->pdev, - ring->size_unaligned, - ring->descs_unaligned, - ring->base_addr_unaligned); - ring->descs = NULL; - } -} - -int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, - u64 *a0, u64 *a1, int wait) -{ - struct vnic_devcmd __iomem *devcmd = vdev->devcmd; - int delay; - u32 status; - int err; - - status = ioread32(&devcmd->status); - if (status & STAT_BUSY) { - printk(KERN_ERR "Busy devcmd %d\n", _CMD_N(cmd)); - return -EBUSY; - } - - if (_CMD_DIR(cmd) & _CMD_DIR_WRITE) { - writeq(*a0, &devcmd->args[0]); - writeq(*a1, &devcmd->args[1]); - wmb(); - } - - iowrite32(cmd, &devcmd->cmd); - - if ((_CMD_FLAGS(cmd) & _CMD_FLAGS_NOWAIT)) - return 0; - - for (delay = 0; delay < wait; delay++) { - - udelay(100); - - status = ioread32(&devcmd->status); - if (!(status & STAT_BUSY)) { - - if (status & STAT_ERROR) { - err = (int)readq(&devcmd->args[0]); - if (err != ERR_ECMDUNKNOWN || - cmd != CMD_CAPABILITY) - printk(KERN_ERR "Error %d devcmd %d\n", - err, _CMD_N(cmd)); - return err; - } - - if (_CMD_DIR(cmd) & _CMD_DIR_READ) { - rmb(); - *a0 = readq(&devcmd->args[0]); - *a1 = readq(&devcmd->args[1]); - } - - return 0; - } - } - - printk(KERN_ERR "Timedout devcmd %d\n", _CMD_N(cmd)); - return -ETIMEDOUT; -} - -static int vnic_dev_capable(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd) -{ - u64 a0 = (u32)cmd, a1 = 0; - int wait = 1000; - int err; - - err = vnic_dev_cmd(vdev, CMD_CAPABILITY, &a0, &a1, wait); - - return !(err || a0); -} - -int vnic_dev_fw_info(struct vnic_dev *vdev, - struct vnic_devcmd_fw_info **fw_info) -{ - u64 a0, a1 = 0; - int wait = 1000; - int err = 0; - - if (!vdev->fw_info) { - vdev->fw_info = pci_alloc_consistent(vdev->pdev, - sizeof(struct vnic_devcmd_fw_info), - &vdev->fw_info_pa); - if (!vdev->fw_info) - return -ENOMEM; - - a0 = vdev->fw_info_pa; - - /* only get fw_info once and cache it */ - err = vnic_dev_cmd(vdev, CMD_MCPU_FW_INFO, &a0, &a1, wait); - } - - *fw_info = vdev->fw_info; - - return err; -} - -int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, unsigned int size, - void *value) -{ - u64 a0, a1; - int wait = 1000; - int err; - - a0 = offset; - a1 = size; - - err = vnic_dev_cmd(vdev, CMD_DEV_SPEC, &a0, &a1, wait); - - switch (size) { - case 1: *(u8 *)value = (u8)a0; break; - case 2: *(u16 *)value = (u16)a0; break; - case 4: *(u32 *)value = (u32)a0; break; - case 8: *(u64 *)value = a0; break; - default: BUG(); break; - } - - return err; -} - -int vnic_dev_stats_clear(struct vnic_dev *vdev) -{ - u64 a0 = 0, a1 = 0; - int wait = 1000; - return vnic_dev_cmd(vdev, CMD_STATS_CLEAR, &a0, &a1, wait); -} - -int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats) -{ - u64 a0, a1; - int wait = 1000; - - if (!vdev->stats) { - vdev->stats = pci_alloc_consistent(vdev->pdev, - sizeof(struct vnic_stats), &vdev->stats_pa); - if (!vdev->stats) - return -ENOMEM; - } - - *stats = vdev->stats; - a0 = vdev->stats_pa; - a1 = sizeof(struct vnic_stats); - - return vnic_dev_cmd(vdev, CMD_STATS_DUMP, &a0, &a1, wait); -} - -int vnic_dev_close(struct vnic_dev *vdev) -{ - u64 a0 = 0, a1 = 0; - int wait = 1000; - return vnic_dev_cmd(vdev, CMD_CLOSE, &a0, &a1, wait); -} - -int vnic_dev_enable(struct vnic_dev *vdev) -{ - u64 a0 = 0, a1 = 0; - int wait = 1000; - return vnic_dev_cmd(vdev, CMD_ENABLE, &a0, &a1, wait); -} - -int vnic_dev_disable(struct vnic_dev *vdev) -{ - u64 a0 = 0, a1 = 0; - int wait = 1000; - return vnic_dev_cmd(vdev, CMD_DISABLE, &a0, &a1, wait); -} - -int vnic_dev_open(struct vnic_dev *vdev, int arg) -{ - u64 a0 = (u32)arg, a1 = 0; - int wait = 1000; - return vnic_dev_cmd(vdev, CMD_OPEN, &a0, &a1, wait); -} - -int vnic_dev_open_done(struct vnic_dev *vdev, int *done) -{ - u64 a0 = 0, a1 = 0; - int wait = 1000; - int err; - - *done = 0; - - err = vnic_dev_cmd(vdev, CMD_OPEN_STATUS, &a0, &a1, wait); - if (err) - return err; - - *done = (a0 == 0); - - return 0; -} - -int vnic_dev_soft_reset(struct vnic_dev *vdev, int arg) -{ - u64 a0 = (u32)arg, a1 = 0; - int wait = 1000; - return vnic_dev_cmd(vdev, CMD_SOFT_RESET, &a0, &a1, wait); -} - -int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done) -{ - u64 a0 = 0, a1 = 0; - int wait = 1000; - int err; - - *done = 0; - - err = vnic_dev_cmd(vdev, CMD_SOFT_RESET_STATUS, &a0, &a1, wait); - if (err) - return err; - - *done = (a0 == 0); - - return 0; -} - -int vnic_dev_hang_notify(struct vnic_dev *vdev) -{ - u64 a0, a1; - int wait = 1000; - return vnic_dev_cmd(vdev, CMD_HANG_NOTIFY, &a0, &a1, wait); -} - -int vnic_dev_mac_addr(struct vnic_dev *vdev, u8 *mac_addr) -{ - u64 a0, a1; - int wait = 1000; - int err, i; - - for (i = 0; i < ETH_ALEN; i++) - mac_addr[i] = 0; - - err = vnic_dev_cmd(vdev, CMD_MAC_ADDR, &a0, &a1, wait); - if (err) - return err; - - for (i = 0; i < ETH_ALEN; i++) - mac_addr[i] = ((u8 *)&a0)[i]; - - return 0; -} - -void vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast, - int broadcast, int promisc, int allmulti) -{ - u64 a0, a1 = 0; - int wait = 1000; - int err; - - a0 = (directed ? CMD_PFILTER_DIRECTED : 0) | - (multicast ? CMD_PFILTER_MULTICAST : 0) | - (broadcast ? CMD_PFILTER_BROADCAST : 0) | - (promisc ? CMD_PFILTER_PROMISCUOUS : 0) | - (allmulti ? CMD_PFILTER_ALL_MULTICAST : 0); - - err = vnic_dev_cmd(vdev, CMD_PACKET_FILTER, &a0, &a1, wait); - if (err) - printk(KERN_ERR "Can't set packet filter\n"); -} - -void vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr) -{ - u64 a0 = 0, a1 = 0; - int wait = 1000; - int err; - int i; - - for (i = 0; i < ETH_ALEN; i++) - ((u8 *)&a0)[i] = addr[i]; - - err = vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait); - if (err) - printk(KERN_ERR "Can't add addr [%pM], %d\n", addr, err); -} - -void vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr) -{ - u64 a0 = 0, a1 = 0; - int wait = 1000; - int err; - int i; - - for (i = 0; i < ETH_ALEN; i++) - ((u8 *)&a0)[i] = addr[i]; - - err = vnic_dev_cmd(vdev, CMD_ADDR_DEL, &a0, &a1, wait); - if (err) - printk(KERN_ERR "Can't del addr [%pM], %d\n", addr, err); -} - -int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr) -{ - u64 a0, a1; - int wait = 1000; - int r; - - if (!vdev->notify) { - vdev->notify = pci_alloc_consistent(vdev->pdev, - sizeof(struct vnic_devcmd_notify), - &vdev->notify_pa); - if (!vdev->notify) - return -ENOMEM; - memset(vdev->notify, 0, sizeof(struct vnic_devcmd_notify)); - } - - a0 = vdev->notify_pa; - a1 = ((u64)intr << 32) & 0x0000ffff00000000ULL; - a1 += sizeof(struct vnic_devcmd_notify); - - r = vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait); - vdev->notify_sz = (r == 0) ? (u32)a1 : 0; - return r; -} - -void vnic_dev_notify_unset(struct vnic_dev *vdev) -{ - u64 a0, a1; - int wait = 1000; - - a0 = 0; /* paddr = 0 to unset notify buffer */ - a1 = 0x0000ffff00000000ULL; /* intr num = -1 to unreg for intr */ - a1 += sizeof(struct vnic_devcmd_notify); - - vnic_dev_cmd(vdev, CMD_NOTIFY, &a0, &a1, wait); - vdev->notify_sz = 0; -} - -static int vnic_dev_notify_ready(struct vnic_dev *vdev) -{ - u32 *words; - unsigned int nwords = vdev->notify_sz / 4; - unsigned int i; - u32 csum; - - if (!vdev->notify || !vdev->notify_sz) - return 0; - - do { - csum = 0; - memcpy(&vdev->notify_copy, vdev->notify, vdev->notify_sz); - words = (u32 *)&vdev->notify_copy; - for (i = 1; i < nwords; i++) - csum += words[i]; - } while (csum != words[0]); - - return 1; -} - -int vnic_dev_init(struct vnic_dev *vdev, int arg) -{ - u64 a0 = (u32)arg, a1 = 0; - int wait = 1000; - int r = 0; - - if (vdev->cap_flags & VNIC_DEV_CAP_INIT) - r = vnic_dev_cmd(vdev, CMD_INIT, &a0, &a1, wait); - else { - vnic_dev_cmd(vdev, CMD_INIT_v1, &a0, &a1, wait); - if (a0 & CMD_INITF_DEFAULT_MAC) { - // Emulate these for old CMD_INIT_v1 which - // didn't pass a0 so no CMD_INITF_*. - vnic_dev_cmd(vdev, CMD_MAC_ADDR, &a0, &a1, wait); - vnic_dev_cmd(vdev, CMD_ADDR_ADD, &a0, &a1, wait); - } - } - return r; -} - -int vnic_dev_link_status(struct vnic_dev *vdev) -{ - if (vdev->linkstatus) - return *vdev->linkstatus; - - if (!vnic_dev_notify_ready(vdev)) - return 0; - - return vdev->notify_copy.link_state; -} - -u32 vnic_dev_port_speed(struct vnic_dev *vdev) -{ - if (!vnic_dev_notify_ready(vdev)) - return 0; - - return vdev->notify_copy.port_speed; -} - -u32 vnic_dev_msg_lvl(struct vnic_dev *vdev) -{ - if (!vnic_dev_notify_ready(vdev)) - return 0; - - return vdev->notify_copy.msglvl; -} - -u32 vnic_dev_mtu(struct vnic_dev *vdev) -{ - if (!vnic_dev_notify_ready(vdev)) - return 0; - - return vdev->notify_copy.mtu; -} - -u32 vnic_dev_link_down_cnt(struct vnic_dev *vdev) -{ - if (!vnic_dev_notify_ready(vdev)) - return 0; - - return vdev->notify_copy.link_down_cnt; -} - -u32 vnic_dev_notify_status(struct vnic_dev *vdev) -{ - if (!vnic_dev_notify_ready(vdev)) - return 0; - - return vdev->notify_copy.status; -} - -void vnic_dev_set_intr_mode(struct vnic_dev *vdev, - enum vnic_dev_intr_mode intr_mode) -{ - vdev->intr_mode = intr_mode; -} - -enum vnic_dev_intr_mode vnic_dev_get_intr_mode( - struct vnic_dev *vdev) -{ - return vdev->intr_mode; -} - -void vnic_dev_unregister(struct vnic_dev *vdev) -{ - if (vdev) { - if (vdev->notify) - pci_free_consistent(vdev->pdev, - sizeof(struct vnic_devcmd_notify), - vdev->notify, - vdev->notify_pa); - if (vdev->linkstatus) - pci_free_consistent(vdev->pdev, - sizeof(u32), - vdev->linkstatus, - vdev->linkstatus_pa); - if (vdev->stats) - pci_free_consistent(vdev->pdev, - sizeof(struct vnic_dev), - vdev->stats, vdev->stats_pa); - if (vdev->fw_info) - pci_free_consistent(vdev->pdev, - sizeof(struct vnic_devcmd_fw_info), - vdev->fw_info, vdev->fw_info_pa); - kfree(vdev); - } -} - -struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev, - void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar) -{ - if (!vdev) { - vdev = kzalloc(sizeof(struct vnic_dev), GFP_ATOMIC); - if (!vdev) - return NULL; - } - - vdev->priv = priv; - vdev->pdev = pdev; - - if (vnic_dev_discover_res(vdev, bar)) - goto err_out; - - vdev->devcmd = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD, 0); - if (!vdev->devcmd) - goto err_out; - - vdev->cap_flags = 0; - - if (vnic_dev_capable(vdev, CMD_INIT)) - vdev->cap_flags |= VNIC_DEV_CAP_INIT; - - return vdev; - -err_out: - vnic_dev_unregister(vdev); - return NULL; -} - - diff --git a/drivers/net/enic/vnic_dev.h b/drivers/net/enic/vnic_dev.h deleted file mode 100644 index 8aa8db2fd03..00000000000 --- a/drivers/net/enic/vnic_dev.h +++ /dev/null @@ -1,122 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _VNIC_DEV_H_ -#define _VNIC_DEV_H_ - -#include "vnic_resource.h" -#include "vnic_devcmd.h" - -#ifndef VNIC_PADDR_TARGET -#define VNIC_PADDR_TARGET 0x0000000000000000ULL -#endif - -#ifndef readq -static inline u64 readq(void __iomem *reg) -{ - return (((u64)readl(reg + 0x4UL) << 32) | - (u64)readl(reg)); -} - -static inline void writeq(u64 val, void __iomem *reg) -{ - writel(val & 0xffffffff, reg); - writel(val >> 32, reg + 0x4UL); -} -#endif - -enum vnic_dev_intr_mode { - VNIC_DEV_INTR_MODE_UNKNOWN, - VNIC_DEV_INTR_MODE_INTX, - VNIC_DEV_INTR_MODE_MSI, - VNIC_DEV_INTR_MODE_MSIX, -}; - -struct vnic_dev_bar { - void __iomem *vaddr; - dma_addr_t bus_addr; - unsigned long len; -}; - -struct vnic_dev_ring { - void *descs; - size_t size; - dma_addr_t base_addr; - size_t base_align; - void *descs_unaligned; - size_t size_unaligned; - dma_addr_t base_addr_unaligned; - unsigned int desc_size; - unsigned int desc_count; - unsigned int desc_avail; -}; - -struct vnic_dev; -struct vnic_stats; - -void *vnic_dev_priv(struct vnic_dev *vdev); -unsigned int vnic_dev_get_res_count(struct vnic_dev *vdev, - enum vnic_res_type type); -void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type, - unsigned int index); -unsigned int vnic_dev_desc_ring_size(struct vnic_dev_ring *ring, - unsigned int desc_count, unsigned int desc_size); -void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring); -int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring, - unsigned int desc_count, unsigned int desc_size); -void vnic_dev_free_desc_ring(struct vnic_dev *vdev, - struct vnic_dev_ring *ring); -int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd, - u64 *a0, u64 *a1, int wait); -int vnic_dev_fw_info(struct vnic_dev *vdev, - struct vnic_devcmd_fw_info **fw_info); -int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, unsigned int size, - void *value); -int vnic_dev_stats_clear(struct vnic_dev *vdev); -int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats); -int vnic_dev_hang_notify(struct vnic_dev *vdev); -void vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast, - int broadcast, int promisc, int allmulti); -void vnic_dev_add_addr(struct vnic_dev *vdev, u8 *addr); -void vnic_dev_del_addr(struct vnic_dev *vdev, u8 *addr); -int vnic_dev_mac_addr(struct vnic_dev *vdev, u8 *mac_addr); -int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr); -void vnic_dev_notify_unset(struct vnic_dev *vdev); -int vnic_dev_link_status(struct vnic_dev *vdev); -u32 vnic_dev_port_speed(struct vnic_dev *vdev); -u32 vnic_dev_msg_lvl(struct vnic_dev *vdev); -u32 vnic_dev_mtu(struct vnic_dev *vdev); -u32 vnic_dev_link_down_cnt(struct vnic_dev *vdev); -u32 vnic_dev_notify_status(struct vnic_dev *vdev); -int vnic_dev_close(struct vnic_dev *vdev); -int vnic_dev_enable(struct vnic_dev *vdev); -int vnic_dev_disable(struct vnic_dev *vdev); -int vnic_dev_open(struct vnic_dev *vdev, int arg); -int vnic_dev_open_done(struct vnic_dev *vdev, int *done); -int vnic_dev_init(struct vnic_dev *vdev, int arg); -int vnic_dev_soft_reset(struct vnic_dev *vdev, int arg); -int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done); -void vnic_dev_set_intr_mode(struct vnic_dev *vdev, - enum vnic_dev_intr_mode intr_mode); -enum vnic_dev_intr_mode vnic_dev_get_intr_mode(struct vnic_dev *vdev); -void vnic_dev_unregister(struct vnic_dev *vdev); -struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev, - void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar); - -#endif /* _VNIC_DEV_H_ */ diff --git a/drivers/net/enic/vnic_devcmd.h b/drivers/net/enic/vnic_devcmd.h deleted file mode 100644 index 2587f34fbfb..00000000000 --- a/drivers/net/enic/vnic_devcmd.h +++ /dev/null @@ -1,305 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _VNIC_DEVCMD_H_ -#define _VNIC_DEVCMD_H_ - -#define _CMD_NBITS 14 -#define _CMD_VTYPEBITS 10 -#define _CMD_FLAGSBITS 6 -#define _CMD_DIRBITS 2 - -#define _CMD_NMASK ((1 << _CMD_NBITS)-1) -#define _CMD_VTYPEMASK ((1 << _CMD_VTYPEBITS)-1) -#define _CMD_FLAGSMASK ((1 << _CMD_FLAGSBITS)-1) -#define _CMD_DIRMASK ((1 << _CMD_DIRBITS)-1) - -#define _CMD_NSHIFT 0 -#define _CMD_VTYPESHIFT (_CMD_NSHIFT+_CMD_NBITS) -#define _CMD_FLAGSSHIFT (_CMD_VTYPESHIFT+_CMD_VTYPEBITS) -#define _CMD_DIRSHIFT (_CMD_FLAGSSHIFT+_CMD_FLAGSBITS) - -/* - * Direction bits (from host perspective). - */ -#define _CMD_DIR_NONE 0U -#define _CMD_DIR_WRITE 1U -#define _CMD_DIR_READ 2U -#define _CMD_DIR_RW (_CMD_DIR_WRITE | _CMD_DIR_READ) - -/* - * Flag bits. - */ -#define _CMD_FLAGS_NONE 0U -#define _CMD_FLAGS_NOWAIT 1U - -/* - * vNIC type bits. - */ -#define _CMD_VTYPE_NONE 0U -#define _CMD_VTYPE_ENET 1U -#define _CMD_VTYPE_FC 2U -#define _CMD_VTYPE_SCSI 4U -#define _CMD_VTYPE_ALL (_CMD_VTYPE_ENET | _CMD_VTYPE_FC | _CMD_VTYPE_SCSI) - -/* - * Used to create cmds.. -*/ -#define _CMDCF(dir, flags, vtype, nr) \ - (((dir) << _CMD_DIRSHIFT) | \ - ((flags) << _CMD_FLAGSSHIFT) | \ - ((vtype) << _CMD_VTYPESHIFT) | \ - ((nr) << _CMD_NSHIFT)) -#define _CMDC(dir, vtype, nr) _CMDCF(dir, 0, vtype, nr) -#define _CMDCNW(dir, vtype, nr) _CMDCF(dir, _CMD_FLAGS_NOWAIT, vtype, nr) - -/* - * Used to decode cmds.. -*/ -#define _CMD_DIR(cmd) (((cmd) >> _CMD_DIRSHIFT) & _CMD_DIRMASK) -#define _CMD_FLAGS(cmd) (((cmd) >> _CMD_FLAGSSHIFT) & _CMD_FLAGSMASK) -#define _CMD_VTYPE(cmd) (((cmd) >> _CMD_VTYPESHIFT) & _CMD_VTYPEMASK) -#define _CMD_N(cmd) (((cmd) >> _CMD_NSHIFT) & _CMD_NMASK) - -enum vnic_devcmd_cmd { - CMD_NONE = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_NONE, 0), - - /* mcpu fw info in mem: (u64)a0=paddr to struct vnic_devcmd_fw_info */ - CMD_MCPU_FW_INFO = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 1), - - /* dev-specific block member: - * in: (u16)a0=offset,(u8)a1=size - * out: a0=value */ - CMD_DEV_SPEC = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 2), - - /* stats clear */ - CMD_STATS_CLEAR = _CMDCNW(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 3), - - /* stats dump in mem: (u64)a0=paddr to stats area, - * (u16)a1=sizeof stats area */ - CMD_STATS_DUMP = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 4), - - /* set Rx packet filter: (u32)a0=filters (see CMD_PFILTER_*) */ - CMD_PACKET_FILTER = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 7), - - /* hang detection notification */ - CMD_HANG_NOTIFY = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 8), - - /* MAC address in (u48)a0 */ - CMD_MAC_ADDR = _CMDC(_CMD_DIR_READ, - _CMD_VTYPE_ENET | _CMD_VTYPE_FC, 9), - - /* disable/enable promisc mode: (u8)a0=0/1 */ -/***** XXX DEPRECATED *****/ - CMD_PROMISC_MODE = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 10), - - /* disable/enable all-multi mode: (u8)a0=0/1 */ -/***** XXX DEPRECATED *****/ - CMD_ALLMULTI_MODE = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 11), - - /* add addr from (u48)a0 */ - CMD_ADDR_ADD = _CMDCNW(_CMD_DIR_WRITE, - _CMD_VTYPE_ENET | _CMD_VTYPE_FC, 12), - - /* del addr from (u48)a0 */ - CMD_ADDR_DEL = _CMDCNW(_CMD_DIR_WRITE, - _CMD_VTYPE_ENET | _CMD_VTYPE_FC, 13), - - /* add VLAN id in (u16)a0 */ - CMD_VLAN_ADD = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 14), - - /* del VLAN id in (u16)a0 */ - CMD_VLAN_DEL = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 15), - - /* nic_cfg in (u32)a0 */ - CMD_NIC_CFG = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 16), - - /* union vnic_rss_key in mem: (u64)a0=paddr, (u16)a1=len */ - CMD_RSS_KEY = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 17), - - /* union vnic_rss_cpu in mem: (u64)a0=paddr, (u16)a1=len */ - CMD_RSS_CPU = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 18), - - /* initiate softreset */ - CMD_SOFT_RESET = _CMDCNW(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 19), - - /* softreset status: - * out: a0=0 reset complete, a0=1 reset in progress */ - CMD_SOFT_RESET_STATUS = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 20), - - /* set struct vnic_devcmd_notify buffer in mem: - * in: - * (u64)a0=paddr to notify (set paddr=0 to unset) - * (u32)a1 & 0x00000000ffffffff=sizeof(struct vnic_devcmd_notify) - * (u16)a1 & 0x0000ffff00000000=intr num (-1 for no intr) - * out: - * (u32)a1 = effective size - */ - CMD_NOTIFY = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 21), - - /* UNDI API: (u64)a0=paddr to s_PXENV_UNDI_ struct, - * (u8)a1=PXENV_UNDI_xxx */ - CMD_UNDI = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 22), - - /* initiate open sequence (u32)a0=flags (see CMD_OPENF_*) */ - CMD_OPEN = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 23), - - /* open status: - * out: a0=0 open complete, a0=1 open in progress */ - CMD_OPEN_STATUS = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 24), - - /* close vnic */ - CMD_CLOSE = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 25), - - /* initialize virtual link: (u32)a0=flags (see CMD_INITF_*) */ -/***** Replaced by CMD_INIT *****/ - CMD_INIT_v1 = _CMDCNW(_CMD_DIR_READ, _CMD_VTYPE_ALL, 26), - - /* variant of CMD_INIT, with provisioning info - * (u64)a0=paddr of vnic_devcmd_provinfo - * (u32)a1=sizeof provision info */ - CMD_INIT_PROV_INFO = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 27), - - /* enable virtual link */ - CMD_ENABLE = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 28), - - /* disable virtual link */ - CMD_DISABLE = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 29), - - /* stats dump all vnics on uplink in mem: (u64)a0=paddr (u32)a1=uif */ - CMD_STATS_DUMP_ALL = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 30), - - /* init status: - * out: a0=0 init complete, a0=1 init in progress - * if a0=0, a1=errno */ - CMD_INIT_STATUS = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 31), - - /* INT13 API: (u64)a0=paddr to vnic_int13_params struct - * (u32)a1=INT13_CMD_xxx */ - CMD_INT13 = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_FC, 32), - - /* logical uplink enable/disable: (u64)a0: 0/1=disable/enable */ - CMD_LOGICAL_UPLINK = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 33), - - /* undo initialize of virtual link */ - CMD_DEINIT = _CMDCNW(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 34), - - /* initialize virtual link: (u32)a0=flags (see CMD_INITF_*) */ - CMD_INIT = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 35), - - /* check fw capability of a cmd: - * in: (u32)a0=cmd - * out: (u32)a0=errno, 0:valid cmd, a1=supported VNIC_STF_* bits */ - CMD_CAPABILITY = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 36), - - /* persistent binding info - * in: (u64)a0=paddr of arg - * (u32)a1=CMD_PERBI_XXX */ - CMD_PERBI = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_FC, 37), -}; - -/* flags for CMD_OPEN */ -#define CMD_OPENF_OPROM 0x1 /* open coming from option rom */ - -/* flags for CMD_INIT */ -#define CMD_INITF_DEFAULT_MAC 0x1 /* init with default mac addr */ - -/* flags for CMD_PACKET_FILTER */ -#define CMD_PFILTER_DIRECTED 0x01 -#define CMD_PFILTER_MULTICAST 0x02 -#define CMD_PFILTER_BROADCAST 0x04 -#define CMD_PFILTER_PROMISCUOUS 0x08 -#define CMD_PFILTER_ALL_MULTICAST 0x10 - -enum vnic_devcmd_status { - STAT_NONE = 0, - STAT_BUSY = 1 << 0, /* cmd in progress */ - STAT_ERROR = 1 << 1, /* last cmd caused error (code in a0) */ -}; - -enum vnic_devcmd_error { - ERR_SUCCESS = 0, - ERR_EINVAL = 1, - ERR_EFAULT = 2, - ERR_EPERM = 3, - ERR_EBUSY = 4, - ERR_ECMDUNKNOWN = 5, - ERR_EBADSTATE = 6, - ERR_ENOMEM = 7, - ERR_ETIMEDOUT = 8, - ERR_ELINKDOWN = 9, -}; - -struct vnic_devcmd_fw_info { - char fw_version[32]; - char fw_build[32]; - char hw_version[32]; - char hw_serial_number[32]; -}; - -struct vnic_devcmd_notify { - u32 csum; /* checksum over following words */ - - u32 link_state; /* link up == 1 */ - u32 port_speed; /* effective port speed (rate limit) */ - u32 mtu; /* MTU */ - u32 msglvl; /* requested driver msg lvl */ - u32 uif; /* uplink interface */ - u32 status; /* status bits (see VNIC_STF_*) */ - u32 error; /* error code (see ERR_*) for first ERR */ - u32 link_down_cnt; /* running count of link down transitions */ - u32 perbi_rebuild_cnt; /* running count of perbi rebuilds */ -}; -#define VNIC_STF_FATAL_ERR 0x0001 /* fatal fw error */ -#define VNIC_STF_STD_PAUSE 0x0002 /* standard link-level pause on */ -#define VNIC_STF_PFC_PAUSE 0x0004 /* priority flow control pause on */ -/* all supported status flags */ -#define VNIC_STF_ALL (VNIC_STF_FATAL_ERR |\ - VNIC_STF_STD_PAUSE |\ - VNIC_STF_PFC_PAUSE |\ - 0) - -struct vnic_devcmd_provinfo { - u8 oui[3]; - u8 type; - u8 data[0]; -}; - -/* - * Writing cmd register causes STAT_BUSY to get set in status register. - * When cmd completes, STAT_BUSY will be cleared. - * - * If cmd completed successfully STAT_ERROR will be clear - * and args registers contain cmd-specific results. - * - * If cmd error, STAT_ERROR will be set and args[0] contains error code. - * - * status register is read-only. While STAT_BUSY is set, - * all other register contents are read-only. - */ - -/* Make sizeof(vnic_devcmd) a power-of-2 for I/O BAR. */ -#define VNIC_DEVCMD_NARGS 15 -struct vnic_devcmd { - u32 status; /* RO */ - u32 cmd; /* RW */ - u64 args[VNIC_DEVCMD_NARGS]; /* RW cmd args (little-endian) */ -}; - -#endif /* _VNIC_DEVCMD_H_ */ diff --git a/drivers/net/enic/vnic_enet.h b/drivers/net/enic/vnic_enet.h deleted file mode 100644 index 6332ac9391b..00000000000 --- a/drivers/net/enic/vnic_enet.h +++ /dev/null @@ -1,47 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _VNIC_ENIC_H_ -#define _VNIC_ENIC_H_ - -/* Device-specific region: enet configuration */ -struct vnic_enet_config { - u32 flags; - u32 wq_desc_count; - u32 rq_desc_count; - u16 mtu; - u16 intr_timer; - u8 intr_timer_type; - u8 intr_mode; - char devname[16]; -}; - -#define VENETF_TSO 0x1 /* TSO enabled */ -#define VENETF_LRO 0x2 /* LRO enabled */ -#define VENETF_RXCSUM 0x4 /* RX csum enabled */ -#define VENETF_TXCSUM 0x8 /* TX csum enabled */ -#define VENETF_RSS 0x10 /* RSS enabled */ -#define VENETF_RSSHASH_IPV4 0x20 /* Hash on IPv4 fields */ -#define VENETF_RSSHASH_TCPIPV4 0x40 /* Hash on TCP + IPv4 fields */ -#define VENETF_RSSHASH_IPV6 0x80 /* Hash on IPv6 fields */ -#define VENETF_RSSHASH_TCPIPV6 0x100 /* Hash on TCP + IPv6 fields */ -#define VENETF_RSSHASH_IPV6_EX 0x200 /* Hash on IPv6 extended fields */ -#define VENETF_RSSHASH_TCPIPV6_EX 0x400 /* Hash on TCP + IPv6 ext. fields */ - -#endif /* _VNIC_ENIC_H_ */ diff --git a/drivers/net/enic/vnic_intr.c b/drivers/net/enic/vnic_intr.c deleted file mode 100644 index ddc38f8f465..00000000000 --- a/drivers/net/enic/vnic_intr.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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/kernel.h> -#include <linux/errno.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/delay.h> - -#include "vnic_dev.h" -#include "vnic_intr.h" - -void vnic_intr_free(struct vnic_intr *intr) -{ - intr->ctrl = NULL; -} - -int vnic_intr_alloc(struct vnic_dev *vdev, struct vnic_intr *intr, - unsigned int index) -{ - intr->index = index; - intr->vdev = vdev; - - intr->ctrl = vnic_dev_get_res(vdev, RES_TYPE_INTR_CTRL, index); - if (!intr->ctrl) { - printk(KERN_ERR "Failed to hook INTR[%d].ctrl resource\n", - index); - return -EINVAL; - } - - return 0; -} - -void vnic_intr_init(struct vnic_intr *intr, unsigned int coalescing_timer, - unsigned int coalescing_type, unsigned int mask_on_assertion) -{ - iowrite32(coalescing_timer, &intr->ctrl->coalescing_timer); - iowrite32(coalescing_type, &intr->ctrl->coalescing_type); - iowrite32(mask_on_assertion, &intr->ctrl->mask_on_assertion); - iowrite32(0, &intr->ctrl->int_credits); -} - -void vnic_intr_clean(struct vnic_intr *intr) -{ - iowrite32(0, &intr->ctrl->int_credits); -} diff --git a/drivers/net/enic/vnic_intr.h b/drivers/net/enic/vnic_intr.h deleted file mode 100644 index 9a53604edce..00000000000 --- a/drivers/net/enic/vnic_intr.h +++ /dev/null @@ -1,106 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _VNIC_INTR_H_ -#define _VNIC_INTR_H_ - -#include <linux/pci.h> - -#include "vnic_dev.h" - -#define VNIC_INTR_TIMER_MAX 0xffff - -#define VNIC_INTR_TIMER_TYPE_ABS 0 -#define VNIC_INTR_TIMER_TYPE_QUIET 1 - -/* Interrupt control */ -struct vnic_intr_ctrl { - u32 coalescing_timer; /* 0x00 */ - u32 pad0; - u32 coalescing_value; /* 0x08 */ - u32 pad1; - u32 coalescing_type; /* 0x10 */ - u32 pad2; - u32 mask_on_assertion; /* 0x18 */ - u32 pad3; - u32 mask; /* 0x20 */ - u32 pad4; - u32 int_credits; /* 0x28 */ - u32 pad5; - u32 int_credit_return; /* 0x30 */ - u32 pad6; -}; - -struct vnic_intr { - unsigned int index; - struct vnic_dev *vdev; - struct vnic_intr_ctrl __iomem *ctrl; /* memory-mapped */ -}; - -static inline void vnic_intr_unmask(struct vnic_intr *intr) -{ - iowrite32(0, &intr->ctrl->mask); -} - -static inline void vnic_intr_mask(struct vnic_intr *intr) -{ - iowrite32(1, &intr->ctrl->mask); -} - -static inline void vnic_intr_return_credits(struct vnic_intr *intr, - unsigned int credits, int unmask, int reset_timer) -{ -#define VNIC_INTR_UNMASK_SHIFT 16 -#define VNIC_INTR_RESET_TIMER_SHIFT 17 - - u32 int_credit_return = (credits & 0xffff) | - (unmask ? (1 << VNIC_INTR_UNMASK_SHIFT) : 0) | - (reset_timer ? (1 << VNIC_INTR_RESET_TIMER_SHIFT) : 0); - - iowrite32(int_credit_return, &intr->ctrl->int_credit_return); -} - -static inline unsigned int vnic_intr_credits(struct vnic_intr *intr) -{ - return ioread32(&intr->ctrl->int_credits); -} - -static inline void vnic_intr_return_all_credits(struct vnic_intr *intr) -{ - unsigned int credits = vnic_intr_credits(intr); - int unmask = 1; - int reset_timer = 1; - - vnic_intr_return_credits(intr, credits, unmask, reset_timer); -} - -static inline u32 vnic_intr_legacy_pba(u32 __iomem *legacy_pba) -{ - /* read PBA without clearing */ - return ioread32(legacy_pba); -} - -void vnic_intr_free(struct vnic_intr *intr); -int vnic_intr_alloc(struct vnic_dev *vdev, struct vnic_intr *intr, - unsigned int index); -void vnic_intr_init(struct vnic_intr *intr, unsigned int coalescing_timer, - unsigned int coalescing_type, unsigned int mask_on_assertion); -void vnic_intr_clean(struct vnic_intr *intr); - -#endif /* _VNIC_INTR_H_ */ diff --git a/drivers/net/enic/vnic_nic.h b/drivers/net/enic/vnic_nic.h deleted file mode 100644 index dadf26fae69..00000000000 --- a/drivers/net/enic/vnic_nic.h +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _VNIC_NIC_H_ -#define _VNIC_NIC_H_ - -#define NIC_CFG_RSS_DEFAULT_CPU_MASK_FIELD 0xffUL -#define NIC_CFG_RSS_DEFAULT_CPU_SHIFT 0 -#define NIC_CFG_RSS_HASH_TYPE (0xffUL << 8) -#define NIC_CFG_RSS_HASH_TYPE_MASK_FIELD 0xffUL -#define NIC_CFG_RSS_HASH_TYPE_SHIFT 8 -#define NIC_CFG_RSS_HASH_BITS (7UL << 16) -#define NIC_CFG_RSS_HASH_BITS_MASK_FIELD 7UL -#define NIC_CFG_RSS_HASH_BITS_SHIFT 16 -#define NIC_CFG_RSS_BASE_CPU (7UL << 19) -#define NIC_CFG_RSS_BASE_CPU_MASK_FIELD 7UL -#define NIC_CFG_RSS_BASE_CPU_SHIFT 19 -#define NIC_CFG_RSS_ENABLE (1UL << 22) -#define NIC_CFG_RSS_ENABLE_MASK_FIELD 1UL -#define NIC_CFG_RSS_ENABLE_SHIFT 22 -#define NIC_CFG_TSO_IPID_SPLIT_EN (1UL << 23) -#define NIC_CFG_TSO_IPID_SPLIT_EN_MASK_FIELD 1UL -#define NIC_CFG_TSO_IPID_SPLIT_EN_SHIFT 23 -#define NIC_CFG_IG_VLAN_STRIP_EN (1UL << 24) -#define NIC_CFG_IG_VLAN_STRIP_EN_MASK_FIELD 1UL -#define NIC_CFG_IG_VLAN_STRIP_EN_SHIFT 24 - -static inline void vnic_set_nic_cfg(u32 *nic_cfg, - u8 rss_default_cpu, u8 rss_hash_type, - u8 rss_hash_bits, u8 rss_base_cpu, - u8 rss_enable, u8 tso_ipid_split_en, - u8 ig_vlan_strip_en) -{ - *nic_cfg = (rss_default_cpu & NIC_CFG_RSS_DEFAULT_CPU_MASK_FIELD) | - ((rss_hash_type & NIC_CFG_RSS_HASH_TYPE_MASK_FIELD) - << NIC_CFG_RSS_HASH_TYPE_SHIFT) | - ((rss_hash_bits & NIC_CFG_RSS_HASH_BITS_MASK_FIELD) - << NIC_CFG_RSS_HASH_BITS_SHIFT) | - ((rss_base_cpu & NIC_CFG_RSS_BASE_CPU_MASK_FIELD) - << NIC_CFG_RSS_BASE_CPU_SHIFT) | - ((rss_enable & NIC_CFG_RSS_ENABLE_MASK_FIELD) - << NIC_CFG_RSS_ENABLE_SHIFT) | - ((tso_ipid_split_en & NIC_CFG_TSO_IPID_SPLIT_EN_MASK_FIELD) - << NIC_CFG_TSO_IPID_SPLIT_EN_SHIFT) | - ((ig_vlan_strip_en & NIC_CFG_IG_VLAN_STRIP_EN_MASK_FIELD) - << NIC_CFG_IG_VLAN_STRIP_EN_SHIFT); -} - -#endif /* _VNIC_NIC_H_ */ diff --git a/drivers/net/enic/vnic_resource.h b/drivers/net/enic/vnic_resource.h deleted file mode 100644 index b61c22aec41..00000000000 --- a/drivers/net/enic/vnic_resource.h +++ /dev/null @@ -1,63 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _VNIC_RESOURCE_H_ -#define _VNIC_RESOURCE_H_ - -#define VNIC_RES_MAGIC 0x766E6963L /* 'vnic' */ -#define VNIC_RES_VERSION 0x00000000L - -/* vNIC resource types */ -enum vnic_res_type { - RES_TYPE_EOL, /* End-of-list */ - RES_TYPE_WQ, /* Work queues */ - RES_TYPE_RQ, /* Receive queues */ - RES_TYPE_CQ, /* Completion queues */ - RES_TYPE_RSVD1, - RES_TYPE_NIC_CFG, /* Enet NIC config registers */ - RES_TYPE_RSVD2, - RES_TYPE_RSVD3, - RES_TYPE_RSVD4, - RES_TYPE_RSVD5, - RES_TYPE_INTR_CTRL, /* Interrupt ctrl table */ - RES_TYPE_INTR_TABLE, /* MSI/MSI-X Interrupt table */ - RES_TYPE_INTR_PBA, /* MSI/MSI-X PBA table */ - RES_TYPE_INTR_PBA_LEGACY, /* Legacy intr status */ - RES_TYPE_RSVD6, - RES_TYPE_RSVD7, - RES_TYPE_DEVCMD, /* Device command region */ - RES_TYPE_PASS_THRU_PAGE, /* Pass-thru page */ - - RES_TYPE_MAX, /* Count of resource types */ -}; - -struct vnic_resource_header { - u32 magic; - u32 version; -}; - -struct vnic_resource { - u8 type; - u8 bar; - u8 pad[2]; - u32 bar_offset; - u32 count; -}; - -#endif /* _VNIC_RESOURCE_H_ */ diff --git a/drivers/net/enic/vnic_rq.c b/drivers/net/enic/vnic_rq.c deleted file mode 100644 index 9365e63e821..00000000000 --- a/drivers/net/enic/vnic_rq.c +++ /dev/null @@ -1,199 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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/kernel.h> -#include <linux/errno.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/delay.h> - -#include "vnic_dev.h" -#include "vnic_rq.h" - -static int vnic_rq_alloc_bufs(struct vnic_rq *rq) -{ - struct vnic_rq_buf *buf; - struct vnic_dev *vdev; - unsigned int i, j, count = rq->ring.desc_count; - unsigned int blks = VNIC_RQ_BUF_BLKS_NEEDED(count); - - vdev = rq->vdev; - - for (i = 0; i < blks; i++) { - rq->bufs[i] = kzalloc(VNIC_RQ_BUF_BLK_SZ, GFP_ATOMIC); - if (!rq->bufs[i]) { - printk(KERN_ERR "Failed to alloc rq_bufs\n"); - return -ENOMEM; - } - } - - for (i = 0; i < blks; i++) { - buf = rq->bufs[i]; - for (j = 0; j < VNIC_RQ_BUF_BLK_ENTRIES; j++) { - buf->index = i * VNIC_RQ_BUF_BLK_ENTRIES + j; - buf->desc = (u8 *)rq->ring.descs + - rq->ring.desc_size * buf->index; - if (buf->index + 1 == count) { - buf->next = rq->bufs[0]; - break; - } else if (j + 1 == VNIC_RQ_BUF_BLK_ENTRIES) { - buf->next = rq->bufs[i + 1]; - } else { - buf->next = buf + 1; - buf++; - } - } - } - - rq->to_use = rq->to_clean = rq->bufs[0]; - rq->buf_index = 0; - - return 0; -} - -void vnic_rq_free(struct vnic_rq *rq) -{ - struct vnic_dev *vdev; - unsigned int i; - - vdev = rq->vdev; - - vnic_dev_free_desc_ring(vdev, &rq->ring); - - for (i = 0; i < VNIC_RQ_BUF_BLKS_MAX; i++) { - kfree(rq->bufs[i]); - rq->bufs[i] = NULL; - } - - rq->ctrl = NULL; -} - -int vnic_rq_alloc(struct vnic_dev *vdev, struct vnic_rq *rq, unsigned int index, - unsigned int desc_count, unsigned int desc_size) -{ - int err; - - rq->index = index; - rq->vdev = vdev; - - rq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_RQ, index); - if (!rq->ctrl) { - printk(KERN_ERR "Failed to hook RQ[%d] resource\n", index); - return -EINVAL; - } - - vnic_rq_disable(rq); - - err = vnic_dev_alloc_desc_ring(vdev, &rq->ring, desc_count, desc_size); - if (err) - return err; - - err = vnic_rq_alloc_bufs(rq); - if (err) { - vnic_rq_free(rq); - return err; - } - - return 0; -} - -void vnic_rq_init(struct vnic_rq *rq, unsigned int cq_index, - unsigned int error_interrupt_enable, - unsigned int error_interrupt_offset) -{ - u64 paddr; - u32 fetch_index; - - paddr = (u64)rq->ring.base_addr | VNIC_PADDR_TARGET; - writeq(paddr, &rq->ctrl->ring_base); - iowrite32(rq->ring.desc_count, &rq->ctrl->ring_size); - iowrite32(cq_index, &rq->ctrl->cq_index); - iowrite32(error_interrupt_enable, &rq->ctrl->error_interrupt_enable); - iowrite32(error_interrupt_offset, &rq->ctrl->error_interrupt_offset); - iowrite32(0, &rq->ctrl->dropped_packet_count); - iowrite32(0, &rq->ctrl->error_status); - - /* Use current fetch_index as the ring starting point */ - fetch_index = ioread32(&rq->ctrl->fetch_index); - rq->to_use = rq->to_clean = - &rq->bufs[fetch_index / VNIC_RQ_BUF_BLK_ENTRIES] - [fetch_index % VNIC_RQ_BUF_BLK_ENTRIES]; - iowrite32(fetch_index, &rq->ctrl->posted_index); - - rq->buf_index = 0; -} - -unsigned int vnic_rq_error_status(struct vnic_rq *rq) -{ - return ioread32(&rq->ctrl->error_status); -} - -void vnic_rq_enable(struct vnic_rq *rq) -{ - iowrite32(1, &rq->ctrl->enable); -} - -int vnic_rq_disable(struct vnic_rq *rq) -{ - unsigned int wait; - - iowrite32(0, &rq->ctrl->enable); - - /* Wait for HW to ACK disable request */ - for (wait = 0; wait < 100; wait++) { - if (!(ioread32(&rq->ctrl->running))) - return 0; - udelay(1); - } - - printk(KERN_ERR "Failed to disable RQ[%d]\n", rq->index); - - return -ETIMEDOUT; -} - -void vnic_rq_clean(struct vnic_rq *rq, - void (*buf_clean)(struct vnic_rq *rq, struct vnic_rq_buf *buf)) -{ - struct vnic_rq_buf *buf; - u32 fetch_index; - - BUG_ON(ioread32(&rq->ctrl->enable)); - - buf = rq->to_clean; - - while (vnic_rq_desc_used(rq) > 0) { - - (*buf_clean)(rq, buf); - - buf = rq->to_clean = buf->next; - rq->ring.desc_avail++; - } - - /* Use current fetch_index as the ring starting point */ - fetch_index = ioread32(&rq->ctrl->fetch_index); - rq->to_use = rq->to_clean = - &rq->bufs[fetch_index / VNIC_RQ_BUF_BLK_ENTRIES] - [fetch_index % VNIC_RQ_BUF_BLK_ENTRIES]; - iowrite32(fetch_index, &rq->ctrl->posted_index); - - rq->buf_index = 0; - - vnic_dev_clear_desc_ring(&rq->ring); -} - diff --git a/drivers/net/enic/vnic_rq.h b/drivers/net/enic/vnic_rq.h deleted file mode 100644 index fd0ef66d2e9..00000000000 --- a/drivers/net/enic/vnic_rq.h +++ /dev/null @@ -1,211 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _VNIC_RQ_H_ -#define _VNIC_RQ_H_ - -#include <linux/pci.h> - -#include "vnic_dev.h" -#include "vnic_cq.h" - -/* Receive queue control */ -struct vnic_rq_ctrl { - u64 ring_base; /* 0x00 */ - u32 ring_size; /* 0x08 */ - u32 pad0; - u32 posted_index; /* 0x10 */ - u32 pad1; - u32 cq_index; /* 0x18 */ - u32 pad2; - u32 enable; /* 0x20 */ - u32 pad3; - u32 running; /* 0x28 */ - u32 pad4; - u32 fetch_index; /* 0x30 */ - u32 pad5; - u32 error_interrupt_enable; /* 0x38 */ - u32 pad6; - u32 error_interrupt_offset; /* 0x40 */ - u32 pad7; - u32 error_status; /* 0x48 */ - u32 pad8; - u32 dropped_packet_count; /* 0x50 */ - u32 pad9; - u32 dropped_packet_count_rc; /* 0x58 */ - u32 pad10; -}; - -/* Break the vnic_rq_buf allocations into blocks of 64 entries */ -#define VNIC_RQ_BUF_BLK_ENTRIES 64 -#define VNIC_RQ_BUF_BLK_SZ \ - (VNIC_RQ_BUF_BLK_ENTRIES * sizeof(struct vnic_rq_buf)) -#define VNIC_RQ_BUF_BLKS_NEEDED(entries) \ - DIV_ROUND_UP(entries, VNIC_RQ_BUF_BLK_ENTRIES) -#define VNIC_RQ_BUF_BLKS_MAX VNIC_RQ_BUF_BLKS_NEEDED(4096) - -struct vnic_rq_buf { - struct vnic_rq_buf *next; - dma_addr_t dma_addr; - void *os_buf; - unsigned int os_buf_index; - unsigned int len; - unsigned int index; - void *desc; -}; - -struct vnic_rq { - unsigned int index; - struct vnic_dev *vdev; - struct vnic_rq_ctrl __iomem *ctrl; /* memory-mapped */ - struct vnic_dev_ring ring; - struct vnic_rq_buf *bufs[VNIC_RQ_BUF_BLKS_MAX]; - struct vnic_rq_buf *to_use; - struct vnic_rq_buf *to_clean; - void *os_buf_head; - unsigned int buf_index; - unsigned int pkts_outstanding; -}; - -static inline unsigned int vnic_rq_desc_avail(struct vnic_rq *rq) -{ - /* how many does SW own? */ - return rq->ring.desc_avail; -} - -static inline unsigned int vnic_rq_desc_used(struct vnic_rq *rq) -{ - /* how many does HW own? */ - return rq->ring.desc_count - rq->ring.desc_avail - 1; -} - -static inline void *vnic_rq_next_desc(struct vnic_rq *rq) -{ - return rq->to_use->desc; -} - -static inline unsigned int vnic_rq_next_index(struct vnic_rq *rq) -{ - return rq->to_use->index; -} - -static inline unsigned int vnic_rq_next_buf_index(struct vnic_rq *rq) -{ - return rq->buf_index++; -} - -static inline void vnic_rq_post(struct vnic_rq *rq, - void *os_buf, unsigned int os_buf_index, - dma_addr_t dma_addr, unsigned int len) -{ - struct vnic_rq_buf *buf = rq->to_use; - - buf->os_buf = os_buf; - buf->os_buf_index = os_buf_index; - buf->dma_addr = dma_addr; - buf->len = len; - - buf = buf->next; - rq->to_use = buf; - rq->ring.desc_avail--; - - /* Move the posted_index every nth descriptor - */ - -#ifndef VNIC_RQ_RETURN_RATE -#define VNIC_RQ_RETURN_RATE 0xf /* keep 2^n - 1 */ -#endif - - if ((buf->index & VNIC_RQ_RETURN_RATE) == 0) { - /* Adding write memory barrier prevents compiler and/or CPU - * reordering, thus avoiding descriptor posting before - * descriptor is initialized. Otherwise, hardware can read - * stale descriptor fields. - */ - wmb(); - iowrite32(buf->index, &rq->ctrl->posted_index); - } -} - -static inline void vnic_rq_return_descs(struct vnic_rq *rq, unsigned int count) -{ - rq->ring.desc_avail += count; -} - -enum desc_return_options { - VNIC_RQ_RETURN_DESC, - VNIC_RQ_DEFER_RETURN_DESC, -}; - -static inline void vnic_rq_service(struct vnic_rq *rq, - struct cq_desc *cq_desc, u16 completed_index, - int desc_return, void (*buf_service)(struct vnic_rq *rq, - struct cq_desc *cq_desc, struct vnic_rq_buf *buf, - int skipped, void *opaque), void *opaque) -{ - struct vnic_rq_buf *buf; - int skipped; - - buf = rq->to_clean; - while (1) { - - skipped = (buf->index != completed_index); - - (*buf_service)(rq, cq_desc, buf, skipped, opaque); - - if (desc_return == VNIC_RQ_RETURN_DESC) - rq->ring.desc_avail++; - - rq->to_clean = buf->next; - - if (!skipped) - break; - - buf = rq->to_clean; - } -} - -static inline int vnic_rq_fill(struct vnic_rq *rq, - int (*buf_fill)(struct vnic_rq *rq)) -{ - int err; - - while (vnic_rq_desc_avail(rq) > 1) { - - err = (*buf_fill)(rq); - if (err) - return err; - } - - return 0; -} - -void vnic_rq_free(struct vnic_rq *rq); -int vnic_rq_alloc(struct vnic_dev *vdev, struct vnic_rq *rq, unsigned int index, - unsigned int desc_count, unsigned int desc_size); -void vnic_rq_init(struct vnic_rq *rq, unsigned int cq_index, - unsigned int error_interrupt_enable, - unsigned int error_interrupt_offset); -unsigned int vnic_rq_error_status(struct vnic_rq *rq); -void vnic_rq_enable(struct vnic_rq *rq); -int vnic_rq_disable(struct vnic_rq *rq); -void vnic_rq_clean(struct vnic_rq *rq, - void (*buf_clean)(struct vnic_rq *rq, struct vnic_rq_buf *buf)); - -#endif /* _VNIC_RQ_H_ */ diff --git a/drivers/net/enic/vnic_rss.h b/drivers/net/enic/vnic_rss.h deleted file mode 100644 index 5fbb3c923bc..00000000000 --- a/drivers/net/enic/vnic_rss.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _VNIC_RSS_H_ -#define _VNIC_RSS_H_ - -/* RSS key array */ -union vnic_rss_key { - struct { - u8 b[10]; - u8 b_pad[6]; - } key[4]; - u64 raw[8]; -}; - -/* RSS cpu array */ -union vnic_rss_cpu { - struct { - u8 b[4] ; - u8 b_pad[4]; - } cpu[32]; - u64 raw[32]; -}; - -void vnic_set_rss_key(union vnic_rss_key *rss_key, u8 *key); -void vnic_set_rss_cpu(union vnic_rss_cpu *rss_cpu, u8 *cpu); -void vnic_get_rss_key(union vnic_rss_key *rss_key, u8 *key); -void vnic_get_rss_cpu(union vnic_rss_cpu *rss_cpu, u8 *cpu); - -#endif /* _VNIC_RSS_H_ */ diff --git a/drivers/net/enic/vnic_stats.h b/drivers/net/enic/vnic_stats.h deleted file mode 100644 index 9ff9614d89b..00000000000 --- a/drivers/net/enic/vnic_stats.h +++ /dev/null @@ -1,70 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _VNIC_STATS_H_ -#define _VNIC_STATS_H_ - -/* Tx statistics */ -struct vnic_tx_stats { - u64 tx_frames_ok; - u64 tx_unicast_frames_ok; - u64 tx_multicast_frames_ok; - u64 tx_broadcast_frames_ok; - u64 tx_bytes_ok; - u64 tx_unicast_bytes_ok; - u64 tx_multicast_bytes_ok; - u64 tx_broadcast_bytes_ok; - u64 tx_drops; - u64 tx_errors; - u64 tx_tso; - u64 rsvd[16]; -}; - -/* Rx statistics */ -struct vnic_rx_stats { - u64 rx_frames_ok; - u64 rx_frames_total; - u64 rx_unicast_frames_ok; - u64 rx_multicast_frames_ok; - u64 rx_broadcast_frames_ok; - u64 rx_bytes_ok; - u64 rx_unicast_bytes_ok; - u64 rx_multicast_bytes_ok; - u64 rx_broadcast_bytes_ok; - u64 rx_drop; - u64 rx_no_bufs; - u64 rx_errors; - u64 rx_rss; - u64 rx_crc_errors; - u64 rx_frames_64; - u64 rx_frames_127; - u64 rx_frames_255; - u64 rx_frames_511; - u64 rx_frames_1023; - u64 rx_frames_1518; - u64 rx_frames_to_max; - u64 rsvd[16]; -}; - -struct vnic_stats { - struct vnic_tx_stats tx; - struct vnic_rx_stats rx; -}; - -#endif /* _VNIC_STATS_H_ */ diff --git a/drivers/net/enic/vnic_wq.c b/drivers/net/enic/vnic_wq.c deleted file mode 100644 index a576d04708e..00000000000 --- a/drivers/net/enic/vnic_wq.c +++ /dev/null @@ -1,184 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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/kernel.h> -#include <linux/errno.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/delay.h> - -#include "vnic_dev.h" -#include "vnic_wq.h" - -static int vnic_wq_alloc_bufs(struct vnic_wq *wq) -{ - struct vnic_wq_buf *buf; - struct vnic_dev *vdev; - unsigned int i, j, count = wq->ring.desc_count; - unsigned int blks = VNIC_WQ_BUF_BLKS_NEEDED(count); - - vdev = wq->vdev; - - for (i = 0; i < blks; i++) { - wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ, GFP_ATOMIC); - if (!wq->bufs[i]) { - printk(KERN_ERR "Failed to alloc wq_bufs\n"); - return -ENOMEM; - } - } - - for (i = 0; i < blks; i++) { - buf = wq->bufs[i]; - for (j = 0; j < VNIC_WQ_BUF_BLK_ENTRIES; j++) { - buf->index = i * VNIC_WQ_BUF_BLK_ENTRIES + j; - buf->desc = (u8 *)wq->ring.descs + - wq->ring.desc_size * buf->index; - if (buf->index + 1 == count) { - buf->next = wq->bufs[0]; - break; - } else if (j + 1 == VNIC_WQ_BUF_BLK_ENTRIES) { - buf->next = wq->bufs[i + 1]; - } else { - buf->next = buf + 1; - buf++; - } - } - } - - wq->to_use = wq->to_clean = wq->bufs[0]; - - return 0; -} - -void vnic_wq_free(struct vnic_wq *wq) -{ - struct vnic_dev *vdev; - unsigned int i; - - vdev = wq->vdev; - - vnic_dev_free_desc_ring(vdev, &wq->ring); - - for (i = 0; i < VNIC_WQ_BUF_BLKS_MAX; i++) { - kfree(wq->bufs[i]); - wq->bufs[i] = NULL; - } - - wq->ctrl = NULL; -} - -int vnic_wq_alloc(struct vnic_dev *vdev, struct vnic_wq *wq, unsigned int index, - unsigned int desc_count, unsigned int desc_size) -{ - int err; - - wq->index = index; - wq->vdev = vdev; - - wq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_WQ, index); - if (!wq->ctrl) { - printk(KERN_ERR "Failed to hook WQ[%d] resource\n", index); - return -EINVAL; - } - - vnic_wq_disable(wq); - - err = vnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count, desc_size); - if (err) - return err; - - err = vnic_wq_alloc_bufs(wq); - if (err) { - vnic_wq_free(wq); - return err; - } - - return 0; -} - -void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index, - unsigned int error_interrupt_enable, - unsigned int error_interrupt_offset) -{ - u64 paddr; - - paddr = (u64)wq->ring.base_addr | VNIC_PADDR_TARGET; - writeq(paddr, &wq->ctrl->ring_base); - iowrite32(wq->ring.desc_count, &wq->ctrl->ring_size); - iowrite32(0, &wq->ctrl->fetch_index); - iowrite32(0, &wq->ctrl->posted_index); - iowrite32(cq_index, &wq->ctrl->cq_index); - iowrite32(error_interrupt_enable, &wq->ctrl->error_interrupt_enable); - iowrite32(error_interrupt_offset, &wq->ctrl->error_interrupt_offset); - iowrite32(0, &wq->ctrl->error_status); -} - -unsigned int vnic_wq_error_status(struct vnic_wq *wq) -{ - return ioread32(&wq->ctrl->error_status); -} - -void vnic_wq_enable(struct vnic_wq *wq) -{ - iowrite32(1, &wq->ctrl->enable); -} - -int vnic_wq_disable(struct vnic_wq *wq) -{ - unsigned int wait; - - iowrite32(0, &wq->ctrl->enable); - - /* Wait for HW to ACK disable request */ - for (wait = 0; wait < 100; wait++) { - if (!(ioread32(&wq->ctrl->running))) - return 0; - udelay(1); - } - - printk(KERN_ERR "Failed to disable WQ[%d]\n", wq->index); - - return -ETIMEDOUT; -} - -void vnic_wq_clean(struct vnic_wq *wq, - void (*buf_clean)(struct vnic_wq *wq, struct vnic_wq_buf *buf)) -{ - struct vnic_wq_buf *buf; - - BUG_ON(ioread32(&wq->ctrl->enable)); - - buf = wq->to_clean; - - while (vnic_wq_desc_used(wq) > 0) { - - (*buf_clean)(wq, buf); - - buf = wq->to_clean = buf->next; - wq->ring.desc_avail++; - } - - wq->to_use = wq->to_clean = wq->bufs[0]; - - iowrite32(0, &wq->ctrl->fetch_index); - iowrite32(0, &wq->ctrl->posted_index); - iowrite32(0, &wq->ctrl->error_status); - - vnic_dev_clear_desc_ring(&wq->ring); -} diff --git a/drivers/net/enic/vnic_wq.h b/drivers/net/enic/vnic_wq.h deleted file mode 100644 index c826137dc65..00000000000 --- a/drivers/net/enic/vnic_wq.h +++ /dev/null @@ -1,161 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _VNIC_WQ_H_ -#define _VNIC_WQ_H_ - -#include <linux/pci.h> - -#include "vnic_dev.h" -#include "vnic_cq.h" - -/* Work queue control */ -struct vnic_wq_ctrl { - u64 ring_base; /* 0x00 */ - u32 ring_size; /* 0x08 */ - u32 pad0; - u32 posted_index; /* 0x10 */ - u32 pad1; - u32 cq_index; /* 0x18 */ - u32 pad2; - u32 enable; /* 0x20 */ - u32 pad3; - u32 running; /* 0x28 */ - u32 pad4; - u32 fetch_index; /* 0x30 */ - u32 pad5; - u32 dca_value; /* 0x38 */ - u32 pad6; - u32 error_interrupt_enable; /* 0x40 */ - u32 pad7; - u32 error_interrupt_offset; /* 0x48 */ - u32 pad8; - u32 error_status; /* 0x50 */ - u32 pad9; -}; - -struct vnic_wq_buf { - struct vnic_wq_buf *next; - dma_addr_t dma_addr; - void *os_buf; - unsigned int len; - unsigned int index; - int sop; - void *desc; -}; - -/* Break the vnic_wq_buf allocations into blocks of 64 entries */ -#define VNIC_WQ_BUF_BLK_ENTRIES 64 -#define VNIC_WQ_BUF_BLK_SZ \ - (VNIC_WQ_BUF_BLK_ENTRIES * sizeof(struct vnic_wq_buf)) -#define VNIC_WQ_BUF_BLKS_NEEDED(entries) \ - DIV_ROUND_UP(entries, VNIC_WQ_BUF_BLK_ENTRIES) -#define VNIC_WQ_BUF_BLKS_MAX VNIC_WQ_BUF_BLKS_NEEDED(4096) - -struct vnic_wq { - unsigned int index; - struct vnic_dev *vdev; - struct vnic_wq_ctrl __iomem *ctrl; /* memory-mapped */ - struct vnic_dev_ring ring; - struct vnic_wq_buf *bufs[VNIC_WQ_BUF_BLKS_MAX]; - struct vnic_wq_buf *to_use; - struct vnic_wq_buf *to_clean; - unsigned int pkts_outstanding; -}; - -static inline unsigned int vnic_wq_desc_avail(struct vnic_wq *wq) -{ - /* how many does SW own? */ - return wq->ring.desc_avail; -} - -static inline unsigned int vnic_wq_desc_used(struct vnic_wq *wq) -{ - /* how many does HW own? */ - return wq->ring.desc_count - wq->ring.desc_avail - 1; -} - -static inline void *vnic_wq_next_desc(struct vnic_wq *wq) -{ - return wq->to_use->desc; -} - -static inline void vnic_wq_post(struct vnic_wq *wq, - void *os_buf, dma_addr_t dma_addr, - unsigned int len, int sop, int eop) -{ - struct vnic_wq_buf *buf = wq->to_use; - - buf->sop = sop; - buf->os_buf = eop ? os_buf : NULL; - buf->dma_addr = dma_addr; - buf->len = len; - - buf = buf->next; - if (eop) { - /* Adding write memory barrier prevents compiler and/or CPU - * reordering, thus avoiding descriptor posting before - * descriptor is initialized. Otherwise, hardware can read - * stale descriptor fields. - */ - wmb(); - iowrite32(buf->index, &wq->ctrl->posted_index); - } - wq->to_use = buf; - - wq->ring.desc_avail--; -} - -static inline void vnic_wq_service(struct vnic_wq *wq, - struct cq_desc *cq_desc, u16 completed_index, - void (*buf_service)(struct vnic_wq *wq, - struct cq_desc *cq_desc, struct vnic_wq_buf *buf, void *opaque), - void *opaque) -{ - struct vnic_wq_buf *buf; - - buf = wq->to_clean; - while (1) { - - (*buf_service)(wq, cq_desc, buf, opaque); - - wq->ring.desc_avail++; - - wq->to_clean = buf->next; - - if (buf->index == completed_index) - break; - - buf = wq->to_clean; - } -} - -void vnic_wq_free(struct vnic_wq *wq); -int vnic_wq_alloc(struct vnic_dev *vdev, struct vnic_wq *wq, unsigned int index, - unsigned int desc_count, unsigned int desc_size); -void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index, - unsigned int error_interrupt_enable, - unsigned int error_interrupt_offset); -unsigned int vnic_wq_error_status(struct vnic_wq *wq); -void vnic_wq_enable(struct vnic_wq *wq); -int vnic_wq_disable(struct vnic_wq *wq); -void vnic_wq_clean(struct vnic_wq *wq, - void (*buf_clean)(struct vnic_wq *wq, struct vnic_wq_buf *buf)); - -#endif /* _VNIC_WQ_H_ */ diff --git a/drivers/net/enic/wq_enet_desc.h b/drivers/net/enic/wq_enet_desc.h deleted file mode 100644 index 483596c2d8b..00000000000 --- a/drivers/net/enic/wq_enet_desc.h +++ /dev/null @@ -1,98 +0,0 @@ -/* - * Copyright 2008 Cisco Systems, Inc. All rights reserved. - * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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 _WQ_ENET_DESC_H_ -#define _WQ_ENET_DESC_H_ - -/* Ethernet work queue descriptor: 16B */ -struct wq_enet_desc { - __le64 address; - __le16 length; - __le16 mss_loopback; - __le16 header_length_flags; - __le16 vlan_tag; -}; - -#define WQ_ENET_ADDR_BITS 64 -#define WQ_ENET_LEN_BITS 14 -#define WQ_ENET_LEN_MASK ((1 << WQ_ENET_LEN_BITS) - 1) -#define WQ_ENET_MSS_BITS 14 -#define WQ_ENET_MSS_MASK ((1 << WQ_ENET_MSS_BITS) - 1) -#define WQ_ENET_MSS_SHIFT 2 -#define WQ_ENET_LOOPBACK_SHIFT 1 -#define WQ_ENET_HDRLEN_BITS 10 -#define WQ_ENET_HDRLEN_MASK ((1 << WQ_ENET_HDRLEN_BITS) - 1) -#define WQ_ENET_FLAGS_OM_BITS 2 -#define WQ_ENET_FLAGS_OM_MASK ((1 << WQ_ENET_FLAGS_OM_BITS) - 1) -#define WQ_ENET_FLAGS_EOP_SHIFT 12 -#define WQ_ENET_FLAGS_CQ_ENTRY_SHIFT 13 -#define WQ_ENET_FLAGS_FCOE_ENCAP_SHIFT 14 -#define WQ_ENET_FLAGS_VLAN_TAG_INSERT_SHIFT 15 - -#define WQ_ENET_OFFLOAD_MODE_CSUM 0 -#define WQ_ENET_OFFLOAD_MODE_RESERVED 1 -#define WQ_ENET_OFFLOAD_MODE_CSUM_L4 2 -#define WQ_ENET_OFFLOAD_MODE_TSO 3 - -static inline void wq_enet_desc_enc(struct wq_enet_desc *desc, - u64 address, u16 length, u16 mss, u16 header_length, - u8 offload_mode, u8 eop, u8 cq_entry, u8 fcoe_encap, - u8 vlan_tag_insert, u16 vlan_tag, u8 loopback) -{ - desc->address = cpu_to_le64(address); - desc->length = cpu_to_le16(length & WQ_ENET_LEN_MASK); - desc->mss_loopback = cpu_to_le16((mss & WQ_ENET_MSS_MASK) << - WQ_ENET_MSS_SHIFT | (loopback & 1) << WQ_ENET_LOOPBACK_SHIFT); - desc->header_length_flags = cpu_to_le16( - (header_length & WQ_ENET_HDRLEN_MASK) | - (offload_mode & WQ_ENET_FLAGS_OM_MASK) << WQ_ENET_HDRLEN_BITS | - (eop & 1) << WQ_ENET_FLAGS_EOP_SHIFT | - (cq_entry & 1) << WQ_ENET_FLAGS_CQ_ENTRY_SHIFT | - (fcoe_encap & 1) << WQ_ENET_FLAGS_FCOE_ENCAP_SHIFT | - (vlan_tag_insert & 1) << WQ_ENET_FLAGS_VLAN_TAG_INSERT_SHIFT); - desc->vlan_tag = cpu_to_le16(vlan_tag); -} - -static inline void wq_enet_desc_dec(struct wq_enet_desc *desc, - u64 *address, u16 *length, u16 *mss, u16 *header_length, - u8 *offload_mode, u8 *eop, u8 *cq_entry, u8 *fcoe_encap, - u8 *vlan_tag_insert, u16 *vlan_tag, u8 *loopback) -{ - *address = le64_to_cpu(desc->address); - *length = le16_to_cpu(desc->length) & WQ_ENET_LEN_MASK; - *mss = (le16_to_cpu(desc->mss_loopback) >> WQ_ENET_MSS_SHIFT) & - WQ_ENET_MSS_MASK; - *loopback = (u8)((le16_to_cpu(desc->mss_loopback) >> - WQ_ENET_LOOPBACK_SHIFT) & 1); - *header_length = le16_to_cpu(desc->header_length_flags) & - WQ_ENET_HDRLEN_MASK; - *offload_mode = (u8)((le16_to_cpu(desc->header_length_flags) >> - WQ_ENET_HDRLEN_BITS) & WQ_ENET_FLAGS_OM_MASK); - *eop = (u8)((le16_to_cpu(desc->header_length_flags) >> - WQ_ENET_FLAGS_EOP_SHIFT) & 1); - *cq_entry = (u8)((le16_to_cpu(desc->header_length_flags) >> - WQ_ENET_FLAGS_CQ_ENTRY_SHIFT) & 1); - *fcoe_encap = (u8)((le16_to_cpu(desc->header_length_flags) >> - WQ_ENET_FLAGS_FCOE_ENCAP_SHIFT) & 1); - *vlan_tag_insert = (u8)((le16_to_cpu(desc->header_length_flags) >> - WQ_ENET_FLAGS_VLAN_TAG_INSERT_SHIFT) & 1); - *vlan_tag = le16_to_cpu(desc->vlan_tag); -} - -#endif /* _WQ_ENET_DESC_H_ */ |