diff options
Diffstat (limited to 'drivers/net/bnx2x/bnx2x_cmn.h')
| -rw-r--r-- | drivers/net/bnx2x/bnx2x_cmn.h | 1132 |
1 files changed, 0 insertions, 1132 deletions
diff --git a/drivers/net/bnx2x/bnx2x_cmn.h b/drivers/net/bnx2x/bnx2x_cmn.h deleted file mode 100644 index 1a3545bd8a9..00000000000 --- a/drivers/net/bnx2x/bnx2x_cmn.h +++ /dev/null @@ -1,1132 +0,0 @@ -/* bnx2x_cmn.h: Broadcom Everest network driver. - * - * Copyright (c) 2007-2011 Broadcom Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation. - * - * Maintained by: Eilon Greenstein <eilong@broadcom.com> - * Written by: Eliezer Tamir - * Based on code from Michael Chan's bnx2 driver - * UDP CSUM errata workaround by Arik Gendelman - * Slowpath and fastpath rework by Vladislav Zolotarov - * Statistics and Link management by Yitchak Gertner - * - */ -#ifndef BNX2X_CMN_H -#define BNX2X_CMN_H - -#include <linux/types.h> -#include <linux/netdevice.h> - - -#include "bnx2x.h" - -extern int num_queues; - -/************************ Macros ********************************/ -#define BNX2X_PCI_FREE(x, y, size) \ - do { \ - if (x) { \ - dma_free_coherent(&bp->pdev->dev, size, (void *)x, y); \ - x = NULL; \ - y = 0; \ - } \ - } while (0) - -#define BNX2X_FREE(x) \ - do { \ - if (x) { \ - kfree((void *)x); \ - x = NULL; \ - } \ - } while (0) - -#define BNX2X_PCI_ALLOC(x, y, size) \ - do { \ - x = dma_alloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL); \ - if (x == NULL) \ - goto alloc_mem_err; \ - memset((void *)x, 0, size); \ - } while (0) - -#define BNX2X_ALLOC(x, size) \ - do { \ - x = kzalloc(size, GFP_KERNEL); \ - if (x == NULL) \ - goto alloc_mem_err; \ - } while (0) - -/*********************** Interfaces **************************** - * Functions that need to be implemented by each driver version - */ - -/** - * bnx2x_initial_phy_init - initialize link parameters structure variables. - * - * @bp: driver handle - * @load_mode: current mode - */ -u8 bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode); - -/** - * bnx2x_link_set - configure hw according to link parameters structure. - * - * @bp: driver handle - */ -void bnx2x_link_set(struct bnx2x *bp); - -/** - * bnx2x_link_test - query link status. - * - * @bp: driver handle - * @is_serdes: bool - * - * Returns 0 if link is UP. - */ -u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes); - -/** - * bnx2x__link_status_update - handles link status change. - * - * @bp: driver handle - */ -void bnx2x__link_status_update(struct bnx2x *bp); - -/** - * bnx2x_link_report - report link status to upper layer. - * - * @bp: driver handle - */ -void bnx2x_link_report(struct bnx2x *bp); - -/* None-atomic version of bnx2x_link_report() */ -void __bnx2x_link_report(struct bnx2x *bp); - -/** - * bnx2x_get_mf_speed - calculate MF speed. - * - * @bp: driver handle - * - * Takes into account current linespeed and MF configuration. - */ -u16 bnx2x_get_mf_speed(struct bnx2x *bp); - -/** - * bnx2x_msix_sp_int - MSI-X slowpath interrupt handler - * - * @irq: irq number - * @dev_instance: private instance - */ -irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance); - -/** - * bnx2x_interrupt - non MSI-X interrupt handler - * - * @irq: irq number - * @dev_instance: private instance - */ -irqreturn_t bnx2x_interrupt(int irq, void *dev_instance); -#ifdef BCM_CNIC - -/** - * bnx2x_cnic_notify - send command to cnic driver - * - * @bp: driver handle - * @cmd: command - */ -int bnx2x_cnic_notify(struct bnx2x *bp, int cmd); - -/** - * bnx2x_setup_cnic_irq_info - provides cnic with IRQ information - * - * @bp: driver handle - */ -void bnx2x_setup_cnic_irq_info(struct bnx2x *bp); -#endif - -/** - * bnx2x_int_enable - enable HW interrupts. - * - * @bp: driver handle - */ -void bnx2x_int_enable(struct bnx2x *bp); - -/** - * bnx2x_int_disable_sync - disable interrupts. - * - * @bp: driver handle - * @disable_hw: true, disable HW interrupts. - * - * This function ensures that there are no - * ISRs or SP DPCs (sp_task) are running after it returns. - */ -void bnx2x_int_disable_sync(struct bnx2x *bp, int disable_hw); - -/** - * bnx2x_init_firmware - loads device firmware - * - * @bp: driver handle - */ -int bnx2x_init_firmware(struct bnx2x *bp); - -/** - * bnx2x_init_hw - init HW blocks according to current initialization stage. - * - * @bp: driver handle - * @load_code: COMMON, PORT or FUNCTION - */ -int bnx2x_init_hw(struct bnx2x *bp, u32 load_code); - -/** - * bnx2x_nic_init - init driver internals. - * - * @bp: driver handle - * @load_code: COMMON, PORT or FUNCTION - * - * Initializes: - * - rings - * - status blocks - * - etc. - */ -void bnx2x_nic_init(struct bnx2x *bp, u32 load_code); - -/** - * bnx2x_alloc_mem - allocate driver's memory. - * - * @bp: driver handle - */ -int bnx2x_alloc_mem(struct bnx2x *bp); - -/** - * bnx2x_free_mem - release driver's memory. - * - * @bp: driver handle - */ -void bnx2x_free_mem(struct bnx2x *bp); - -/** - * bnx2x_setup_client - setup eth client. - * - * @bp: driver handle - * @fp: pointer to fastpath structure - * @is_leading: boolean - */ -int bnx2x_setup_client(struct bnx2x *bp, struct bnx2x_fastpath *fp, - int is_leading); - -/** - * bnx2x_set_num_queues - set number of queues according to mode. - * - * @bp: driver handle - */ -void bnx2x_set_num_queues(struct bnx2x *bp); - -/** - * bnx2x_chip_cleanup - cleanup chip internals. - * - * @bp: driver handle - * @unload_mode: COMMON, PORT, FUNCTION - * - * - Cleanup MAC configuration. - * - Closes clients. - * - etc. - */ -void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode); - -/** - * bnx2x_acquire_hw_lock - acquire HW lock. - * - * @bp: driver handle - * @resource: resource bit which was locked - */ -int bnx2x_acquire_hw_lock(struct bnx2x *bp, u32 resource); - -/** - * bnx2x_release_hw_lock - release HW lock. - * - * @bp: driver handle - * @resource: resource bit which was locked - */ -int bnx2x_release_hw_lock(struct bnx2x *bp, u32 resource); - -/** - * bnx2x_set_eth_mac - configure eth MAC address in the HW - * - * @bp: driver handle - * @set: set or clear - * - * Configures according to the value in netdev->dev_addr. - */ -void bnx2x_set_eth_mac(struct bnx2x *bp, int set); - -#ifdef BCM_CNIC -/** - * bnx2x_set_fip_eth_mac_addr - Set/Clear FIP MAC(s) - * - * @bp: driver handle - * @set: set or clear the CAM entry - * - * Used next enties in the CAM after the ETH MAC(s). - * This function will wait until the ramdord completion returns. - * Return 0 if cussess, -ENODEV if ramrod doesn't return. - */ -int bnx2x_set_fip_eth_mac_addr(struct bnx2x *bp, int set); - -/** - * bnx2x_set_all_enode_macs - Set/Clear ALL_ENODE mcast MAC. - * - * @bp: driver handle - * @set: set or clear - */ -int bnx2x_set_all_enode_macs(struct bnx2x *bp, int set); -#endif - -/** - * bnx2x_set_rx_mode - set MAC filtering configurations. - * - * @dev: netdevice - * - * called with netif_tx_lock from dev_mcast.c - */ -void bnx2x_set_rx_mode(struct net_device *dev); - -/** - * bnx2x_set_storm_rx_mode - configure MAC filtering rules in a FW. - * - * @bp: driver handle - */ -void bnx2x_set_storm_rx_mode(struct bnx2x *bp); - -/* Parity errors related */ -void bnx2x_inc_load_cnt(struct bnx2x *bp); -u32 bnx2x_dec_load_cnt(struct bnx2x *bp); -bool bnx2x_chk_parity_attn(struct bnx2x *bp); -bool bnx2x_reset_is_done(struct bnx2x *bp); -void bnx2x_disable_close_the_gate(struct bnx2x *bp); - -/** - * bnx2x_stats_handle - perform statistics handling according to event. - * - * @bp: driver handle - * @event: bnx2x_stats_event - */ -void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event); - -/** - * bnx2x_sp_event - handle ramrods completion. - * - * @fp: fastpath handle for the event - * @rr_cqe: eth_rx_cqe - */ -void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe); - -/** - * bnx2x_func_start - init function - * - * @bp: driver handle - * - * Must be called before sending CLIENT_SETUP for the first client. - */ -int bnx2x_func_start(struct bnx2x *bp); - -/** - * bnx2x_ilt_set_info - prepare ILT configurations. - * - * @bp: driver handle - */ -void bnx2x_ilt_set_info(struct bnx2x *bp); - -/** - * bnx2x_dcbx_init - initialize dcbx protocol. - * - * @bp: driver handle - */ -void bnx2x_dcbx_init(struct bnx2x *bp); - -/** - * bnx2x_set_power_state - set power state to the requested value. - * - * @bp: driver handle - * @state: required state D0 or D3hot - * - * Currently only D0 and D3hot are supported. - */ -int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state); - -/** - * bnx2x_update_max_mf_config - update MAX part of MF configuration in HW. - * - * @bp: driver handle - * @value: new value - */ -void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value); - -/* dev_close main block */ -int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode); - -/* dev_open main block */ -int bnx2x_nic_load(struct bnx2x *bp, int load_mode); - -/* hard_xmit callback */ -netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev); - -/* select_queue callback */ -u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb); - -int bnx2x_change_mac_addr(struct net_device *dev, void *p); - -/* NAPI poll Rx part */ -int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget); - -/* NAPI poll Tx part */ -int bnx2x_tx_int(struct bnx2x_fastpath *fp); - -/* suspend/resume callbacks */ -int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state); -int bnx2x_resume(struct pci_dev *pdev); - -/* Release IRQ vectors */ -void bnx2x_free_irq(struct bnx2x *bp); - -void bnx2x_free_fp_mem(struct bnx2x *bp); -int bnx2x_alloc_fp_mem(struct bnx2x *bp); - -void bnx2x_init_rx_rings(struct bnx2x *bp); -void bnx2x_free_skbs(struct bnx2x *bp); -void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw); -void bnx2x_netif_start(struct bnx2x *bp); - -/** - * bnx2x_enable_msix - set msix configuration. - * - * @bp: driver handle - * - * fills msix_table, requests vectors, updates num_queues - * according to number of available vectors. - */ -int bnx2x_enable_msix(struct bnx2x *bp); - -/** - * bnx2x_enable_msi - request msi mode from OS, updated internals accordingly - * - * @bp: driver handle - */ -int bnx2x_enable_msi(struct bnx2x *bp); - -/** - * bnx2x_poll - NAPI callback - * - * @napi: napi structure - * @budget: - * - */ -int bnx2x_poll(struct napi_struct *napi, int budget); - -/** - * bnx2x_alloc_mem_bp - allocate memories outsize main driver structure - * - * @bp: driver handle - */ -int __devinit bnx2x_alloc_mem_bp(struct bnx2x *bp); - -/** - * bnx2x_free_mem_bp - release memories outsize main driver structure - * - * @bp: driver handle - */ -void bnx2x_free_mem_bp(struct bnx2x *bp); - -/** - * bnx2x_change_mtu - change mtu netdev callback - * - * @dev: net device - * @new_mtu: requested mtu - * - */ -int bnx2x_change_mtu(struct net_device *dev, int new_mtu); - -u32 bnx2x_fix_features(struct net_device *dev, u32 features); -int bnx2x_set_features(struct net_device *dev, u32 features); - -/** - * bnx2x_tx_timeout - tx timeout netdev callback - * - * @dev: net device - */ -void bnx2x_tx_timeout(struct net_device *dev); - -static inline void bnx2x_update_fpsb_idx(struct bnx2x_fastpath *fp) -{ - barrier(); /* status block is written to by the chip */ - fp->fp_hc_idx = fp->sb_running_index[SM_RX_ID]; -} - -static inline void bnx2x_update_rx_prod(struct bnx2x *bp, - struct bnx2x_fastpath *fp, - u16 bd_prod, u16 rx_comp_prod, - u16 rx_sge_prod) -{ - struct ustorm_eth_rx_producers rx_prods = {0}; - int i; - - /* Update producers */ - rx_prods.bd_prod = bd_prod; - rx_prods.cqe_prod = rx_comp_prod; - rx_prods.sge_prod = rx_sge_prod; - - /* - * Make sure that the BD and SGE data is updated before updating the - * producers since FW might read the BD/SGE right after the producer - * is updated. - * This is only applicable for weak-ordered memory model archs such - * as IA-64. The following barrier is also mandatory since FW will - * assumes BDs must have buffers. - */ - wmb(); - - for (i = 0; i < sizeof(struct ustorm_eth_rx_producers)/4; i++) - REG_WR(bp, - BAR_USTRORM_INTMEM + fp->ustorm_rx_prods_offset + i*4, - ((u32 *)&rx_prods)[i]); - - mmiowb(); /* keep prod updates ordered */ - - DP(NETIF_MSG_RX_STATUS, - "queue[%d]: wrote bd_prod %u cqe_prod %u sge_prod %u\n", - fp->index, bd_prod, rx_comp_prod, rx_sge_prod); -} - -static inline void bnx2x_igu_ack_sb_gen(struct bnx2x *bp, u8 igu_sb_id, - u8 segment, u16 index, u8 op, - u8 update, u32 igu_addr) -{ - struct igu_regular cmd_data = {0}; - - cmd_data.sb_id_and_flags = - ((index << IGU_REGULAR_SB_INDEX_SHIFT) | - (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) | - (update << IGU_REGULAR_BUPDATE_SHIFT) | - (op << IGU_REGULAR_ENABLE_INT_SHIFT)); - - DP(NETIF_MSG_HW, "write 0x%08x to IGU addr 0x%x\n", - cmd_data.sb_id_and_flags, igu_addr); - REG_WR(bp, igu_addr, cmd_data.sb_id_and_flags); - - /* Make sure that ACK is written */ - mmiowb(); - barrier(); -} - -static inline void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, - u8 idu_sb_id, bool is_Pf) -{ - u32 data, ctl, cnt = 100; - u32 igu_addr_data = IGU_REG_COMMAND_REG_32LSB_DATA; - u32 igu_addr_ctl = IGU_REG_COMMAND_REG_CTRL; - u32 igu_addr_ack = IGU_REG_CSTORM_TYPE_0_SB_CLEANUP + (idu_sb_id/32)*4; - u32 sb_bit = 1 << (idu_sb_id%32); - u32 func_encode = BP_FUNC(bp) | - ((is_Pf == true ? 1 : 0) << IGU_FID_ENCODE_IS_PF_SHIFT); - u32 addr_encode = IGU_CMD_E2_PROD_UPD_BASE + idu_sb_id; - - /* Not supported in BC mode */ - if (CHIP_INT_MODE_IS_BC(bp)) - return; - - data = (IGU_USE_REGISTER_cstorm_type_0_sb_cleanup - << IGU_REGULAR_CLEANUP_TYPE_SHIFT) | - IGU_REGULAR_CLEANUP_SET | - IGU_REGULAR_BCLEANUP; - - ctl = addr_encode << IGU_CTRL_REG_ADDRESS_SHIFT | - func_encode << IGU_CTRL_REG_FID_SHIFT | - IGU_CTRL_CMD_TYPE_WR << IGU_CTRL_REG_TYPE_SHIFT; - - DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n", - data, igu_addr_data); - REG_WR(bp, igu_addr_data, data); - mmiowb(); - barrier(); - DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n", - ctl, igu_addr_ctl); - REG_WR(bp, igu_addr_ctl, ctl); - mmiowb(); - barrier(); - - /* wait for clean up to finish */ - while (!(REG_RD(bp, igu_addr_ack) & sb_bit) && --cnt) - msleep(20); - - - if (!(REG_RD(bp, igu_addr_ack) & sb_bit)) { - DP(NETIF_MSG_HW, "Unable to finish IGU cleanup: " - "idu_sb_id %d offset %d bit %d (cnt %d)\n", - idu_sb_id, idu_sb_id/32, idu_sb_id%32, cnt); - } -} - -static inline void bnx2x_hc_ack_sb(struct bnx2x *bp, u8 sb_id, - u8 storm, u16 index, u8 op, u8 update) -{ - u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 + - COMMAND_REG_INT_ACK); - struct igu_ack_register igu_ack; - - igu_ack.status_block_index = index; - igu_ack.sb_id_and_flags = - ((sb_id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) | - (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) | - (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) | - (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT)); - - DP(BNX2X_MSG_OFF, "write 0x%08x to HC addr 0x%x\n", - (*(u32 *)&igu_ack), hc_addr); - REG_WR(bp, hc_addr, (*(u32 *)&igu_ack)); - - /* Make sure that ACK is written */ - mmiowb(); - barrier(); -} - -static inline void bnx2x_igu_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 segment, - u16 index, u8 op, u8 update) -{ - u32 igu_addr = BAR_IGU_INTMEM + (IGU_CMD_INT_ACK_BASE + igu_sb_id)*8; - - bnx2x_igu_ack_sb_gen(bp, igu_sb_id, segment, index, op, update, - igu_addr); -} - -static inline void bnx2x_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 storm, - u16 index, u8 op, u8 update) -{ - if (bp->common.int_block == INT_BLOCK_HC) - bnx2x_hc_ack_sb(bp, igu_sb_id, storm, index, op, update); - else { - u8 segment; - - if (CHIP_INT_MODE_IS_BC(bp)) - segment = storm; - else if (igu_sb_id != bp->igu_dsb_id) - segment = IGU_SEG_ACCESS_DEF; - else if (storm == ATTENTION_ID) - segment = IGU_SEG_ACCESS_ATTN; - else - segment = IGU_SEG_ACCESS_DEF; - bnx2x_igu_ack_sb(bp, igu_sb_id, segment, index, op, update); - } -} - -static inline u16 bnx2x_hc_ack_int(struct bnx2x *bp) -{ - u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 + - COMMAND_REG_SIMD_MASK); - u32 result = REG_RD(bp, hc_addr); - - DP(BNX2X_MSG_OFF, "read 0x%08x from HC addr 0x%x\n", - result, hc_addr); - - barrier(); - return result; -} - -static inline u16 bnx2x_igu_ack_int(struct bnx2x *bp) -{ - u32 igu_addr = (BAR_IGU_INTMEM + IGU_REG_SISR_MDPC_WMASK_LSB_UPPER*8); - u32 result = REG_RD(bp, igu_addr); - - DP(NETIF_MSG_HW, "read 0x%08x from IGU addr 0x%x\n", - result, igu_addr); - - barrier(); - return result; -} - -static inline u16 bnx2x_ack_int(struct bnx2x *bp) -{ - barrier(); - if (bp->common.int_block == INT_BLOCK_HC) - return bnx2x_hc_ack_int(bp); - else - return bnx2x_igu_ack_int(bp); -} - -static inline int bnx2x_has_tx_work_unload(struct bnx2x_fastpath *fp) -{ - /* Tell compiler that consumer and producer can change */ - barrier(); - return fp->tx_pkt_prod != fp->tx_pkt_cons; -} - -static inline u16 bnx2x_tx_avail(struct bnx2x_fastpath *fp) -{ - s16 used; - u16 prod; - u16 cons; - - prod = fp->tx_bd_prod; - cons = fp->tx_bd_cons; - - /* NUM_TX_RINGS = number of "next-page" entries - It will be used as a threshold */ - used = SUB_S16(prod, cons) + (s16)NUM_TX_RINGS; - -#ifdef BNX2X_STOP_ON_ERROR - WARN_ON(used < 0); - WARN_ON(used > fp->bp->tx_ring_size); - WARN_ON((fp->bp->tx_ring_size - used) > MAX_TX_AVAIL); -#endif - - return (s16)(fp->bp->tx_ring_size) - used; -} - -static inline int bnx2x_has_tx_work(struct bnx2x_fastpath *fp) -{ - u16 hw_cons; - - /* Tell compiler that status block fields can change */ - barrier(); - hw_cons = le16_to_cpu(*fp->tx_cons_sb); - return hw_cons != fp->tx_pkt_cons; -} - -static inline int bnx2x_has_rx_work(struct bnx2x_fastpath *fp) -{ - u16 rx_cons_sb; - - /* Tell compiler that status block fields can change */ - barrier(); - rx_cons_sb = le16_to_cpu(*fp->rx_cons_sb); - if ((rx_cons_sb & MAX_RCQ_DESC_CNT) == MAX_RCQ_DESC_CNT) - rx_cons_sb++; - return (fp->rx_comp_cons != rx_cons_sb); -} - -/** - * disables tx from stack point of view - * - * @bp: driver handle - */ -static inline void bnx2x_tx_disable(struct bnx2x *bp) -{ - netif_tx_disable(bp->dev); - netif_carrier_off(bp->dev); -} - -static inline void bnx2x_free_rx_sge(struct bnx2x *bp, - struct bnx2x_fastpath *fp, u16 index) -{ - struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; - struct page *page = sw_buf->page; - struct eth_rx_sge *sge = &fp->rx_sge_ring[index]; - - /* Skip "next page" elements */ - if (!page) - return; - - dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(sw_buf, mapping), - SGE_PAGE_SIZE*PAGES_PER_SGE, DMA_FROM_DEVICE); - __free_pages(page, PAGES_PER_SGE_SHIFT); - - sw_buf->page = NULL; - sge->addr_hi = 0; - sge->addr_lo = 0; -} - -static inline void bnx2x_add_all_napi(struct bnx2x *bp) -{ - int i; - - /* Add NAPI objects */ - for_each_napi_queue(bp, i) - netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi), - bnx2x_poll, BNX2X_NAPI_WEIGHT); -} - -static inline void bnx2x_del_all_napi(struct bnx2x *bp) -{ - int i; - - for_each_napi_queue(bp, i) - netif_napi_del(&bnx2x_fp(bp, i, napi)); -} - -static inline void bnx2x_disable_msi(struct bnx2x *bp) -{ - if (bp->flags & USING_MSIX_FLAG) { - pci_disable_msix(bp->pdev); - bp->flags &= ~USING_MSIX_FLAG; - } else if (bp->flags & USING_MSI_FLAG) { - pci_disable_msi(bp->pdev); - bp->flags &= ~USING_MSI_FLAG; - } -} - -static inline int bnx2x_calc_num_queues(struct bnx2x *bp) -{ - return num_queues ? - min_t(int, num_queues, BNX2X_MAX_QUEUES(bp)) : - min_t(int, num_online_cpus(), BNX2X_MAX_QUEUES(bp)); -} - -static inline void bnx2x_clear_sge_mask_next_elems(struct bnx2x_fastpath *fp) -{ - int i, j; - - for (i = 1; i <= NUM_RX_SGE_PAGES; i++) { - int idx = RX_SGE_CNT * i - 1; - - for (j = 0; j < 2; j++) { - SGE_MASK_CLEAR_BIT(fp, idx); - idx--; - } - } -} - -static inline void bnx2x_init_sge_ring_bit_mask(struct bnx2x_fastpath *fp) -{ - /* Set the mask to all 1-s: it's faster to compare to 0 than to 0xf-s */ - memset(fp->sge_mask, 0xff, - (NUM_RX_SGE >> RX_SGE_MASK_ELEM_SHIFT)*sizeof(u64)); - - /* Clear the two last indices in the page to 1: - these are the indices that correspond to the "next" element, - hence will never be indicated and should be removed from - the calculations. */ - bnx2x_clear_sge_mask_next_elems(fp); -} - -static inline int bnx2x_alloc_rx_sge(struct bnx2x *bp, - struct bnx2x_fastpath *fp, u16 index) -{ - struct page *page = alloc_pages(GFP_ATOMIC, PAGES_PER_SGE_SHIFT); - struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; - struct eth_rx_sge *sge = &fp->rx_sge_ring[index]; - dma_addr_t mapping; - - if (unlikely(page == NULL)) - return -ENOMEM; - - mapping = dma_map_page(&bp->pdev->dev, page, 0, - SGE_PAGE_SIZE*PAGES_PER_SGE, DMA_FROM_DEVICE); - if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { - __free_pages(page, PAGES_PER_SGE_SHIFT); - return -ENOMEM; - } - - sw_buf->page = page; - dma_unmap_addr_set(sw_buf, mapping, mapping); - - sge->addr_hi = cpu_to_le32(U64_HI(mapping)); - sge->addr_lo = cpu_to_le32(U64_LO(mapping)); - - return 0; -} - -static inline int bnx2x_alloc_rx_skb(struct bnx2x *bp, - struct bnx2x_fastpath *fp, u16 index) -{ - struct sk_buff *skb; - struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[index]; - struct eth_rx_bd *rx_bd = &fp->rx_desc_ring[index]; - dma_addr_t mapping; - - skb = netdev_alloc_skb(bp->dev, fp->rx_buf_size); - if (unlikely(skb == NULL)) - return -ENOMEM; - - mapping = dma_map_single(&bp->pdev->dev, skb->data, fp->rx_buf_size, - DMA_FROM_DEVICE); - if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { - dev_kfree_skb_any(skb); - return -ENOMEM; - } - - rx_buf->skb = skb; - dma_unmap_addr_set(rx_buf, mapping, mapping); - - rx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); - rx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); - - return 0; -} - -/* note that we are not allocating a new skb, - * we are just moving one from cons to prod - * we are not creating a new mapping, - * so there is no need to check for dma_mapping_error(). - */ -static inline void bnx2x_reuse_rx_skb(struct bnx2x_fastpath *fp, - u16 cons, u16 prod) -{ - struct bnx2x *bp = fp->bp; - struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons]; - struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod]; - struct eth_rx_bd *cons_bd = &fp->rx_desc_ring[cons]; - struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod]; - - dma_sync_single_for_device(&bp->pdev->dev, - dma_unmap_addr(cons_rx_buf, mapping), - RX_COPY_THRESH, DMA_FROM_DEVICE); - - prod_rx_buf->skb = cons_rx_buf->skb; - dma_unmap_addr_set(prod_rx_buf, mapping, - dma_unmap_addr(cons_rx_buf, mapping)); - *prod_bd = *cons_bd; -} - -static inline void bnx2x_free_rx_sge_range(struct bnx2x *bp, - struct bnx2x_fastpath *fp, int last) -{ - int i; - - if (fp->disable_tpa) - return; - - for (i = 0; i < last; i++) - bnx2x_free_rx_sge(bp, fp, i); -} - -static inline void bnx2x_free_tpa_pool(struct bnx2x *bp, - struct bnx2x_fastpath *fp, int last) -{ - int i; - - for (i = 0; i < last; i++) { - struct sw_rx_bd *rx_buf = &(fp->tpa_pool[i]); - struct sk_buff *skb = rx_buf->skb; - - if (skb == NULL) { - DP(NETIF_MSG_IFDOWN, "tpa bin %d empty on free\n", i); - continue; - } - - if (fp->tpa_state[i] == BNX2X_TPA_START) - dma_unmap_single(&bp->pdev->dev, - dma_unmap_addr(rx_buf, mapping), - fp->rx_buf_size, DMA_FROM_DEVICE); - - dev_kfree_skb(skb); - rx_buf->skb = NULL; - } -} - -static inline void bnx2x_init_tx_ring_one(struct bnx2x_fastpath *fp) -{ - int i; - - for (i = 1; i <= NUM_TX_RINGS; i++) { - struct eth_tx_next_bd *tx_next_bd = - &fp->tx_desc_ring[TX_DESC_CNT * i - 1].next_bd; - - tx_next_bd->addr_hi = - cpu_to_le32(U64_HI(fp->tx_desc_mapping + - BCM_PAGE_SIZE*(i % NUM_TX_RINGS))); - tx_next_bd->addr_lo = - cpu_to_le32(U64_LO(fp->tx_desc_mapping + - BCM_PAGE_SIZE*(i % NUM_TX_RINGS))); - } - - SET_FLAG(fp->tx_db.data.header.header, DOORBELL_HDR_DB_TYPE, 1); - fp->tx_db.data.zero_fill1 = 0; - fp->tx_db.data.prod = 0; - - fp->tx_pkt_prod = 0; - fp->tx_pkt_cons = 0; - fp->tx_bd_prod = 0; - fp->tx_bd_cons = 0; - fp->tx_pkt = 0; -} - -static inline void bnx2x_init_tx_rings(struct bnx2x *bp) -{ - int i; - - for_each_tx_queue(bp, i) - bnx2x_init_tx_ring_one(&bp->fp[i]); -} - -static inline void bnx2x_set_next_page_rx_bd(struct bnx2x_fastpath *fp) -{ - int i; - - for (i = 1; i <= NUM_RX_RINGS; i++) { - struct eth_rx_bd *rx_bd; - - rx_bd = &fp->rx_desc_ring[RX_DESC_CNT * i - 2]; - rx_bd->addr_hi = - cpu_to_le32(U64_HI(fp->rx_desc_mapping + - BCM_PAGE_SIZE*(i % NUM_RX_RINGS))); - rx_bd->addr_lo = - cpu_to_le32(U64_LO(fp->rx_desc_mapping + - BCM_PAGE_SIZE*(i % NUM_RX_RINGS))); - } -} - -static inline void bnx2x_set_next_page_sgl(struct bnx2x_fastpath *fp) -{ - int i; - - for (i = 1; i <= NUM_RX_SGE_PAGES; i++) { - struct eth_rx_sge *sge; - - sge = &fp->rx_sge_ring[RX_SGE_CNT * i - 2]; - sge->addr_hi = - cpu_to_le32(U64_HI(fp->rx_sge_mapping + - BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); - - sge->addr_lo = - cpu_to_le32(U64_LO(fp->rx_sge_mapping + - BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); - } -} - -static inline void bnx2x_set_next_page_rx_cq(struct bnx2x_fastpath *fp) -{ - int i; - for (i = 1; i <= NUM_RCQ_RINGS; i++) { - struct eth_rx_cqe_next_page *nextpg; - - nextpg = (struct eth_rx_cqe_next_page *) - &fp->rx_comp_ring[RCQ_DESC_CNT * i - 1]; - nextpg->addr_hi = - cpu_to_le32(U64_HI(fp->rx_comp_mapping + - BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); - nextpg->addr_lo = - cpu_to_le32(U64_LO(fp->rx_comp_mapping + - BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); - } -} - -/* Returns the number of actually allocated BDs */ -static inline int bnx2x_alloc_rx_bds(struct bnx2x_fastpath *fp, - int rx_ring_size) -{ - struct bnx2x *bp = fp->bp; - u16 ring_prod, cqe_ring_prod; - int i; - - fp->rx_comp_cons = 0; - cqe_ring_prod = ring_prod = 0; - - /* This routine is called only during fo init so - * fp->eth_q_stats.rx_skb_alloc_failed = 0 - */ - for (i = 0; i < rx_ring_size; i++) { - if (bnx2x_alloc_rx_skb(bp, fp, ring_prod) < 0) { - fp->eth_q_stats.rx_skb_alloc_failed++; - continue; - } - ring_prod = NEXT_RX_IDX(ring_prod); - cqe_ring_prod = NEXT_RCQ_IDX(cqe_ring_prod); - WARN_ON(ring_prod <= (i - fp->eth_q_stats.rx_skb_alloc_failed)); - } - - if (fp->eth_q_stats.rx_skb_alloc_failed) - BNX2X_ERR("was only able to allocate " - "%d rx skbs on queue[%d]\n", - (i - fp->eth_q_stats.rx_skb_alloc_failed), fp->index); - - fp->rx_bd_prod = ring_prod; - /* Limit the CQE producer by the CQE ring size */ - fp->rx_comp_prod = min_t(u16, NUM_RCQ_RINGS*RCQ_DESC_CNT, - cqe_ring_prod); - fp->rx_pkt = fp->rx_calls = 0; - - return i - fp->eth_q_stats.rx_skb_alloc_failed; -} - -#ifdef BCM_CNIC -static inline void bnx2x_init_fcoe_fp(struct bnx2x *bp) -{ - bnx2x_fcoe(bp, cl_id) = BNX2X_FCOE_ETH_CL_ID + - BP_E1HVN(bp) * NONE_ETH_CONTEXT_USE; - bnx2x_fcoe(bp, cid) = BNX2X_FCOE_ETH_CID; - bnx2x_fcoe(bp, fw_sb_id) = DEF_SB_ID; - bnx2x_fcoe(bp, igu_sb_id) = bp->igu_dsb_id; - bnx2x_fcoe(bp, bp) = bp; - bnx2x_fcoe(bp, state) = BNX2X_FP_STATE_CLOSED; - bnx2x_fcoe(bp, index) = FCOE_IDX; - bnx2x_fcoe(bp, rx_cons_sb) = BNX2X_FCOE_L2_RX_INDEX; - bnx2x_fcoe(bp, tx_cons_sb) = BNX2X_FCOE_L2_TX_INDEX; - /* qZone id equals to FW (per path) client id */ - bnx2x_fcoe(bp, cl_qzone_id) = bnx2x_fcoe(bp, cl_id) + - BP_PORT(bp)*(CHIP_IS_E2(bp) ? ETH_MAX_RX_CLIENTS_E2 : - ETH_MAX_RX_CLIENTS_E1H); - /* init shortcut */ - bnx2x_fcoe(bp, ustorm_rx_prods_offset) = CHIP_IS_E2(bp) ? - USTORM_RX_PRODS_E2_OFFSET(bnx2x_fcoe(bp, cl_qzone_id)) : - USTORM_RX_PRODS_E1X_OFFSET(BP_PORT(bp), bnx2x_fcoe_fp(bp)->cl_id); - -} -#endif - -static inline void __storm_memset_struct(struct bnx2x *bp, - u32 addr, size_t size, u32 *data) -{ - int i; - for (i = 0; i < size/4; i++) - REG_WR(bp, addr + (i * 4), data[i]); -} - -static inline void storm_memset_mac_filters(struct bnx2x *bp, - struct tstorm_eth_mac_filter_config *mac_filters, - u16 abs_fid) -{ - size_t size = sizeof(struct tstorm_eth_mac_filter_config); - - u32 addr = BAR_TSTRORM_INTMEM + - TSTORM_MAC_FILTER_CONFIG_OFFSET(abs_fid); - - __storm_memset_struct(bp, addr, size, (u32 *)mac_filters); -} - -static inline void storm_memset_cmng(struct bnx2x *bp, - struct cmng_struct_per_port *cmng, - u8 port) -{ - size_t size = - sizeof(struct rate_shaping_vars_per_port) + - sizeof(struct fairness_vars_per_port) + - sizeof(struct safc_struct_per_port) + - sizeof(struct pfc_struct_per_port); - - u32 addr = BAR_XSTRORM_INTMEM + - XSTORM_CMNG_PER_PORT_VARS_OFFSET(port); - - __storm_memset_struct(bp, addr, size, (u32 *)cmng); - - addr += size + 4 /* SKIP DCB+LLFC */; - size = sizeof(struct cmng_struct_per_port) - - size /* written */ - 4 /*skipped*/; - - __storm_memset_struct(bp, addr, size, - (u32 *)(cmng->traffic_type_to_priority_cos)); -} - -/* HW Lock for shared dual port PHYs */ -void bnx2x_acquire_phy_lock(struct bnx2x *bp); -void bnx2x_release_phy_lock(struct bnx2x *bp); - -/** - * bnx2x_extract_max_cfg - extract MAX BW part from MF configuration. - * - * @bp: driver handle - * @mf_cfg: MF configuration - * - */ -static inline u16 bnx2x_extract_max_cfg(struct bnx2x *bp, u32 mf_cfg) -{ - u16 max_cfg = (mf_cfg & FUNC_MF_CFG_MAX_BW_MASK) >> - FUNC_MF_CFG_MAX_BW_SHIFT; - if (!max_cfg) { - BNX2X_ERR("Illegal configuration detected for Max BW - " - "using 100 instead\n"); - max_cfg = 100; - } - return max_cfg; -} - -#endif /* BNX2X_CMN_H */ |