diff options
Diffstat (limited to 'drivers/net')
28 files changed, 826 insertions, 692 deletions
diff --git a/drivers/net/bnx2x/bnx2x.h b/drivers/net/bnx2x/bnx2x.h index 9e87417f6ec..16a76f074df 100644 --- a/drivers/net/bnx2x/bnx2x.h +++ b/drivers/net/bnx2x/bnx2x.h @@ -1,6 +1,6 @@ /* bnx2x.h: Broadcom Everest network driver. * - * Copyright (c) 2007-2010 Broadcom Corporation + * 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 @@ -22,8 +22,8 @@ * (you will need to reboot afterwards) */ /* #define BNX2X_STOP_ON_ERROR */ -#define DRV_MODULE_VERSION "1.62.11-0" -#define DRV_MODULE_RELDATE "2011/01/31" +#define DRV_MODULE_VERSION "1.62.12-0" +#define DRV_MODULE_RELDATE "2011/03/20" #define BNX2X_BC_VER 0x040200 #define BNX2X_MULTI_QUEUE @@ -473,7 +473,8 @@ struct bnx2x_fastpath { #define NUM_RX_BD (RX_DESC_CNT * NUM_RX_RINGS) #define MAX_RX_BD (NUM_RX_BD - 1) #define MAX_RX_AVAIL (MAX_RX_DESC_CNT * NUM_RX_RINGS - 2) -#define MIN_RX_AVAIL 128 +#define MIN_RX_SIZE_TPA 72 +#define MIN_RX_SIZE_NONTPA 10 #define INIT_JUMBO_RX_RING_SIZE MAX_RX_AVAIL #define INIT_RX_RING_SIZE MAX_RX_AVAIL #define NEXT_RX_IDX(x) ((((x) & RX_DESC_MASK) == \ @@ -893,6 +894,22 @@ typedef enum { (&bp->def_status_blk->sp_sb.\ index_values[HC_SP_INDEX_EQ_CONS]) +/* This is a data that will be used to create a link report message. + * We will keep the data used for the last link report in order + * to prevent reporting the same link parameters twice. + */ +struct bnx2x_link_report_data { + u16 line_speed; /* Effective line speed */ + unsigned long link_report_flags;/* BNX2X_LINK_REPORT_XXX flags */ +}; + +enum { + BNX2X_LINK_REPORT_FD, /* Full DUPLEX */ + BNX2X_LINK_REPORT_LINK_DOWN, + BNX2X_LINK_REPORT_RX_FC_ON, + BNX2X_LINK_REPORT_TX_FC_ON, +}; + struct bnx2x { /* Fields used in the tx and intr/napi performance paths * are grouped together in the beginning of the structure @@ -1025,6 +1042,9 @@ struct bnx2x { struct link_params link_params; struct link_vars link_vars; + u32 link_cnt; + struct bnx2x_link_report_data last_reported_link; + struct mdio_if_info mdio; struct bnx2x_common common; @@ -1441,6 +1461,8 @@ struct bnx2x_func_init_params { #define WAIT_RAMROD_POLL 0x01 #define WAIT_RAMROD_COMMON 0x02 +void bnx2x_read_mf_cfg(struct bnx2x *bp); + /* dmae */ void bnx2x_read_dmae(struct bnx2x *bp, u32 src_addr, u32 len32); void bnx2x_write_dmae(struct bnx2x *bp, dma_addr_t dma_addr, u32 dst_addr, diff --git a/drivers/net/bnx2x/bnx2x_cmn.c b/drivers/net/bnx2x/bnx2x_cmn.c index 8729061a4fd..6ee6601b517 100644 --- a/drivers/net/bnx2x/bnx2x_cmn.c +++ b/drivers/net/bnx2x/bnx2x_cmn.c @@ -1,6 +1,6 @@ /* bnx2x_cmn.c: Broadcom Everest network driver. * - * Copyright (c) 2007-2010 Broadcom Corporation + * 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 @@ -27,6 +27,49 @@ static int bnx2x_setup_irqs(struct bnx2x *bp); +/** + * bnx2x_bz_fp - zero content of the fastpath structure. + * + * @bp: driver handle + * @index: fastpath index to be zeroed + * + * Makes sure the contents of the bp->fp[index].napi is kept + * intact. + */ +static inline void bnx2x_bz_fp(struct bnx2x *bp, int index) +{ + struct bnx2x_fastpath *fp = &bp->fp[index]; + struct napi_struct orig_napi = fp->napi; + /* bzero bnx2x_fastpath contents */ + memset(fp, 0, sizeof(*fp)); + + /* Restore the NAPI object as it has been already initialized */ + fp->napi = orig_napi; +} + +/** + * bnx2x_move_fp - move content of the fastpath structure. + * + * @bp: driver handle + * @from: source FP index + * @to: destination FP index + * + * Makes sure the contents of the bp->fp[to].napi is kept + * intact. + */ +static inline void bnx2x_move_fp(struct bnx2x *bp, int from, int to) +{ + struct bnx2x_fastpath *from_fp = &bp->fp[from]; + struct bnx2x_fastpath *to_fp = &bp->fp[to]; + struct napi_struct orig_napi = to_fp->napi; + /* Move bnx2x_fastpath contents */ + memcpy(to_fp, from_fp, sizeof(*to_fp)); + to_fp->index = to; + + /* Restore the NAPI object as it has been already initialized */ + to_fp->napi = orig_napi; +} + /* free skb in the packet ring at pos idx * return idx of last bd freed */ @@ -265,13 +308,15 @@ static void bnx2x_tpa_start(struct bnx2x_fastpath *fp, u16 queue, */ #define TPA_TSTAMP_OPT_LEN 12 /** - * Calculate the approximate value of the MSS for this - * aggregation using the first packet of it. + * bnx2x_set_lro_mss - calculate the approximate value of the MSS * - * @param bp - * @param parsing_flags Parsing flags from the START CQE - * @param len_on_bd Total length of the first packet for the - * aggregation. + * @bp: driver handle + * @parsing_flags: parsing flags from the START CQE + * @len_on_bd: total length of the first packet for the + * aggregation. + * + * Approximate value of the MSS for this aggregation calculated using + * the first packet of it. */ static inline u16 bnx2x_set_lro_mss(struct bnx2x *bp, u16 parsing_flags, u16 len_on_bd) @@ -758,35 +803,119 @@ u16 bnx2x_get_mf_speed(struct bnx2x *bp) return line_speed; } +/** + * bnx2x_fill_report_data - fill link report data to report + * + * @bp: driver handle + * @data: link state to update + * + * It uses a none-atomic bit operations because is called under the mutex. + */ +static inline void bnx2x_fill_report_data(struct bnx2x *bp, + struct bnx2x_link_report_data *data) +{ + u16 line_speed = bnx2x_get_mf_speed(bp); + + memset(data, 0, sizeof(*data)); + + /* Fill the report data: efective line speed */ + data->line_speed = line_speed; + + /* Link is down */ + if (!bp->link_vars.link_up || (bp->flags & MF_FUNC_DIS)) + __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, + &data->link_report_flags); + + /* Full DUPLEX */ + if (bp->link_vars.duplex == DUPLEX_FULL) + __set_bit(BNX2X_LINK_REPORT_FD, &data->link_report_flags); + + /* Rx Flow Control is ON */ + if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_RX) + __set_bit(BNX2X_LINK_REPORT_RX_FC_ON, &data->link_report_flags); + + /* Tx Flow Control is ON */ + if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX) + __set_bit(BNX2X_LINK_REPORT_TX_FC_ON, &data->link_report_flags); +} + +/** + * bnx2x_link_report - report link status to OS. + * + * @bp: driver handle + * + * Calls the __bnx2x_link_report() under the same locking scheme + * as a link/PHY state managing code to ensure a consistent link + * reporting. + */ + void bnx2x_link_report(struct bnx2x *bp) { - if (bp->flags & MF_FUNC_DIS) { - netif_carrier_off(bp->dev); - netdev_err(bp->dev, "NIC Link is Down\n"); - return; - } + bnx2x_acquire_phy_lock(bp); + __bnx2x_link_report(bp); + bnx2x_release_phy_lock(bp); +} - if (bp->link_vars.link_up) { - u16 line_speed; +/** + * __bnx2x_link_report - report link status to OS. + * + * @bp: driver handle + * + * None atomic inmlementation. + * Should be called under the phy_lock. + */ +void __bnx2x_link_report(struct bnx2x *bp) +{ + struct bnx2x_link_report_data cur_data; - if (bp->state == BNX2X_STATE_OPEN) - netif_carrier_on(bp->dev); - netdev_info(bp->dev, "NIC Link is Up, "); + /* reread mf_cfg */ + if (!CHIP_IS_E1(bp)) + bnx2x_read_mf_cfg(bp); - line_speed = bnx2x_get_mf_speed(bp); + /* Read the current link report info */ + bnx2x_fill_report_data(bp, &cur_data); - pr_cont("%d Mbps ", line_speed); + /* Don't report link down or exactly the same link status twice */ + if (!memcmp(&cur_data, &bp->last_reported_link, sizeof(cur_data)) || + (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, + &bp->last_reported_link.link_report_flags) && + test_bit(BNX2X_LINK_REPORT_LINK_DOWN, + &cur_data.link_report_flags))) + return; + + bp->link_cnt++; + + /* We are going to report a new link parameters now - + * remember the current data for the next time. + */ + memcpy(&bp->last_reported_link, &cur_data, sizeof(cur_data)); - if (bp->link_vars.duplex == DUPLEX_FULL) + if (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, + &cur_data.link_report_flags)) { + netif_carrier_off(bp->dev); + netdev_err(bp->dev, "NIC Link is Down\n"); + return; + } else { + netif_carrier_on(bp->dev); + netdev_info(bp->dev, "NIC Link is Up, "); + pr_cont("%d Mbps ", cur_data.line_speed); + + if (test_and_clear_bit(BNX2X_LINK_REPORT_FD, + &cur_data.link_report_flags)) pr_cont("full duplex"); else pr_cont("half duplex"); - if (bp->link_vars.flow_ctrl != BNX2X_FLOW_CTRL_NONE) { - if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_RX) { + /* Handle the FC at the end so that only these flags would be + * possibly set. This way we may easily check if there is no FC + * enabled. + */ + if (cur_data.link_report_flags) { + if (test_bit(BNX2X_LINK_REPORT_RX_FC_ON, + &cur_data.link_report_flags)) { pr_cont(", receive "); - if (bp->link_vars.flow_ctrl & - BNX2X_FLOW_CTRL_TX) + if (test_bit(BNX2X_LINK_REPORT_TX_FC_ON, + &cur_data.link_report_flags)) pr_cont("& transmit "); } else { pr_cont(", transmit "); @@ -794,62 +923,9 @@ void bnx2x_link_report(struct bnx2x *bp) pr_cont("flow control ON"); } pr_cont("\n"); - - } else { /* link_down */ - netif_carrier_off(bp->dev); - netdev_err(bp->dev, "NIC Link is Down\n"); } } -/* 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; - for (i = 0; i < rx_ring_size; i++) { - if (bnx2x_alloc_rx_skb(bp, fp, ring_prod) < 0) { - BNX2X_ERR("was only able to allocate " - "%d rx skbs on queue[%d]\n", i, fp->index); - fp->eth_q_stats.rx_skb_alloc_failed++; - break; - } - ring_prod = NEXT_RX_IDX(ring_prod); - cqe_ring_prod = NEXT_RCQ_IDX(cqe_ring_prod); - WARN_ON(ring_prod <= i); - } - - 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; -} - -static inline void bnx2x_alloc_rx_bd_ring(struct bnx2x_fastpath *fp) -{ - struct bnx2x *bp = fp->bp; - int rx_ring_size = bp->rx_ring_size ? bp->rx_ring_size : - MAX_RX_AVAIL/bp->num_queues; - - rx_ring_size = max_t(int, MIN_RX_AVAIL, rx_ring_size); - - bnx2x_alloc_rx_bds(fp, rx_ring_size); - - /* Warning! - * this will generate an interrupt (to the TSTORM) - * must only be done after chip is initialized - */ - bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod, - fp->rx_sge_prod); -} - void bnx2x_init_rx_rings(struct bnx2x *bp) { int func = BP_FUNC(bp); @@ -858,6 +934,7 @@ void bnx2x_init_rx_rings(struct bnx2x *bp) u16 ring_prod; int i, j; + /* Allocate TPA resources */ for_each_rx_queue(bp, j) { struct bnx2x_fastpath *fp = &bp->fp[j]; @@ -865,6 +942,7 @@ void bnx2x_init_rx_rings(struct bnx2x *bp) "mtu %d rx_buf_size %d\n", bp->dev->mtu, fp->rx_buf_size); if (!fp->disable_tpa) { + /* Fill the per-aggregation pool */ for (i = 0; i < max_agg_queues; i++) { fp->tpa_pool[i].skb = netdev_alloc_skb(bp->dev, fp->rx_buf_size); @@ -919,13 +997,13 @@ void bnx2x_init_rx_rings(struct bnx2x *bp) fp->rx_bd_cons = 0; - bnx2x_set_next_page_rx_bd(fp); - - /* CQ ring */ - bnx2x_set_next_page_rx_cq(fp); - - /* Allocate BDs and initialize BD ring */ - bnx2x_alloc_rx_bd_ring(fp); + /* Activate BD ring */ + /* Warning! + * this will generate an interrupt (to the TSTORM) + * must only be done after chip is initialized + */ + bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod, + fp->rx_sge_prod); if (j != 0) continue; @@ -959,27 +1037,40 @@ static void bnx2x_free_tx_skbs(struct bnx2x *bp) } } +static void bnx2x_free_rx_bds(struct bnx2x_fastpath *fp) +{ + struct bnx2x *bp = fp->bp; + int i; + + /* ring wasn't allocated */ + if (fp->rx_buf_ring == NULL) + return; + + for (i = 0; i < NUM_RX_BD; i++) { + struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[i]; + struct sk_buff *skb = rx_buf->skb; + + if (skb == NULL) + continue; + + dma_unmap_single(&bp->pdev->dev, + dma_unmap_addr(rx_buf, mapping), + fp->rx_buf_size, DMA_FROM_DEVICE); + + rx_buf->skb = NULL; + dev_kfree_skb(skb); + } +} + static void bnx2x_free_rx_skbs(struct bnx2x *bp) { - int i, j; + int j; for_each_rx_queue(bp, j) { struct bnx2x_fastpath *fp = &bp->fp[j]; - for (i = 0; i < NUM_RX_BD; i++) { - struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[i]; - struct sk_buff *skb = rx_buf->skb; - - if (skb == NULL) - continue; + bnx2x_free_rx_bds(fp); - dma_unmap_single(&bp->pdev->dev, - dma_unmap_addr(rx_buf, mapping), - fp->rx_buf_size, DMA_FROM_DEVICE); - - rx_buf->skb = NULL; - dev_kfree_skb(skb); - } if (!fp->disable_tpa) bnx2x_free_tpa_pool(bp, fp, CHIP_IS_E1(bp) ? ETH_MAX_AGGREGATION_QUEUES_E1 : @@ -1345,29 +1436,47 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) bp->state = BNX2X_STATE_OPENING_WAIT4_LOAD; + /* Set the initial link reported state to link down */ + bnx2x_acquire_phy_lock(bp); + memset(&bp->last_reported_link, 0, sizeof(bp->last_reported_link)); + __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, + &bp->last_reported_link.link_report_flags); + bnx2x_release_phy_lock(bp); + /* must be called before memory allocation and HW init */ bnx2x_ilt_set_info(bp); + /* zero fastpath structures preserving invariants like napi which are + * allocated only once + */ + for_each_queue(bp, i) + bnx2x_bz_fp(bp, i); + /* Set the receive queues buffer size */ bnx2x_set_rx_buf_size(bp); + for_each_queue(bp, i) + bnx2x_fp(bp, i, disable_tpa) = + ((bp->flags & TPA_ENABLE_FLAG) == 0); + +#ifdef BCM_CNIC + /* We don't want TPA on FCoE L2 ring */ + bnx2x_fcoe(bp, disable_tpa) = 1; +#endif + if (bnx2x_alloc_mem(bp)) return -ENOMEM; + /* As long as bnx2x_alloc_mem() may possibly update + * bp->num_queues, bnx2x_set_real_num_queues() should always + * come after it. + */ rc = bnx2x_set_real_num_queues(bp); if (rc) { BNX2X_ERR("Unable to set real_num_queues\n"); goto load_error0; } - for_each_queue(bp, i) - bnx2x_fp(bp, i, disable_tpa) = - ((bp->flags & TPA_ENABLE_FLAG) == 0); - -#ifdef BCM_CNIC - /* We don't want TPA on FCoE L2 ring */ - bnx2x_fcoe(bp, disable_tpa) = 1; -#endif bnx2x_napi_enable(bp); /* Send LOAD_REQUEST command to MCP @@ -1976,12 +2085,11 @@ static inline void bnx2x_set_pbd_gso_e2(struct sk_buff *skb, u32 *parsing_data, } /** - * Update PBD in GSO case. + * bnx2x_set_pbd_gso - update PBD in GSO case. * - * @param skb - * @param tx_start_bd - * @param pbd - * @param xmit_type + * @skb: packet skb + * @pbd: parse BD + * @xmit_type: xmit flags */ static inline void bnx2x_set_pbd_gso(struct sk_buff *skb, struct eth_tx_parse_bd_e1x *pbd, @@ -2008,13 +2116,14 @@ static inline void bnx2x_set_pbd_gso(struct sk_buff *skb, } /** + * bnx2x_set_pbd_csum_e2 - update PBD with checksum and return header length * - * @param skb - * @param tx_start_bd - * @param pbd_e2 - * @param xmit_type + * @bp: driver handle + * @skb: packet skb + * @parsing_data: data to be updated + * @xmit_type: xmit flags * - * @return header len + * 57712 related */ static inline u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb, u32 *parsing_data, u32 xmit_type) @@ -2039,13 +2148,12 @@ static inline u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb, } /** + * bnx2x_set_pbd_csum - update PBD with checksum and return header length * - * @param skb - * @param tx_start_bd - * @param pbd - * @param xmit_type - * - * @return Header length + * @bp: driver handle + * @skb: packet skb + * @pbd: parse BD to be updated + * @xmit_type: xmit flags */ static inline u8 bnx2x_set_pbd_csum(struct bnx2x *bp, struct sk_buff *skb, struct eth_tx_parse_bd_e1x *pbd, @@ -2393,6 +2501,232 @@ int bnx2x_change_mac_addr(struct net_device *dev, void *p) return 0; } +static void bnx2x_free_fp_mem_at(struct bnx2x *bp, int fp_index) +{ + union host_hc_status_block *sb = &bnx2x_fp(bp, fp_index, status_blk); + struct bnx2x_fastpath *fp = &bp->fp[fp_index]; + + /* Common */ +#ifdef BCM_CNIC + if (IS_FCOE_IDX(fp_index)) { + memset(sb, 0, sizeof(union host_hc_status_block)); + fp->status_blk_mapping = 0; + + } else { +#endif + /* status blocks */ + if (CHIP_IS_E2(bp)) + BNX2X_PCI_FREE(sb->e2_sb, + bnx2x_fp(bp, fp_index, + status_blk_mapping), + sizeof(struct host_hc_status_block_e2)); + else + BNX2X_PCI_FREE(sb->e1x_sb, + bnx2x_fp(bp, fp_index, + status_blk_mapping), + sizeof(struct host_hc_status_block_e1x)); +#ifdef BCM_CNIC + } +#endif + /* Rx */ + if (!skip_rx_queue(bp, fp_index)) { + bnx2x_free_rx_bds(fp); + + /* fastpath rx rings: rx_buf rx_desc rx_comp */ + BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_buf_ring)); + BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_desc_ring), + bnx2x_fp(bp, fp_index, rx_desc_mapping), + sizeof(struct eth_rx_bd) * NUM_RX_BD); + + BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_comp_ring), + bnx2x_fp(bp, fp_index, rx_comp_mapping), + sizeof(struct eth_fast_path_rx_cqe) * + NUM_RCQ_BD); + + /* SGE ring */ + BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_page_ring)); + BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_sge_ring), + bnx2x_fp(bp, fp_index, rx_sge_mapping), + BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); + } + + /* Tx */ + if (!skip_tx_queue(bp, fp_index)) { + /* fastpath tx rings: tx_buf tx_desc */ + BNX2X_FREE(bnx2x_fp(bp, fp_index, tx_buf_ring)); + BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, tx_desc_ring), + bnx2x_fp(bp, fp_index, tx_desc_mapping), + sizeof(union eth_tx_bd_types) * NUM_TX_BD); + } + /* end of fastpath */ +} + +void bnx2x_free_fp_mem(struct bnx2x *bp) +{ + int i; + for_each_queue(bp, i) + bnx2x_free_fp_mem_at(bp, i); +} + +static inline void set_sb_shortcuts(struct bnx2x *bp, int index) +{ + union host_hc_status_block status_blk = bnx2x_fp(bp, index, status_blk); + if (CHIP_IS_E2(bp)) { + bnx2x_fp(bp, index, sb_index_values) = + (__le16 *)status_blk.e2_sb->sb.index_values; + bnx2x_fp(bp, index, sb_running_index) = + (__le16 *)status_blk.e2_sb->sb.running_index; + } else { + bnx2x_fp(bp, index, sb_index_values) = + (__le16 *)status_blk.e1x_sb->sb.index_values; + bnx2x_fp(bp, index, sb_running_index) = + (__le16 *)status_blk.e1x_sb->sb.running_index; + } +} + +static int bnx2x_alloc_fp_mem_at(struct bnx2x *bp, int index) +{ + union host_hc_status_block *sb; + struct bnx2x_fastpath *fp = &bp->fp[index]; + int ring_size = 0; + + /* if rx_ring_size specified - use it */ + int rx_ring_size = bp->rx_ring_size ? bp->rx_ring_size : + MAX_RX_AVAIL/bp->num_queues; + + /* allocate at least number of buffers required by FW */ + rx_ring_size = max_t(int, fp->disable_tpa ? MIN_RX_SIZE_NONTPA : + MIN_RX_SIZE_TPA, + rx_ring_size); + + bnx2x_fp(bp, index, bp) = bp; + bnx2x_fp(bp, index, index) = index; + + /* Common */ + sb = &bnx2x_fp(bp, index, status_blk); +#ifdef BCM_CNIC + if (!IS_FCOE_IDX(index)) { +#endif + /* status blocks */ + if (CHIP_IS_E2(bp)) + BNX2X_PCI_ALLOC(sb->e2_sb, + &bnx2x_fp(bp, index, status_blk_mapping), + sizeof(struct host_hc_status_block_e2)); + else + BNX2X_PCI_ALLOC(sb->e1x_sb, + &bnx2x_fp(bp, index, status_blk_mapping), + sizeof(struct host_hc_status_block_e1x)); +#ifdef BCM_CNIC + } +#endif + set_sb_shortcuts(bp, index); + + /* Tx */ + if (!skip_tx_queue(bp, index)) { + /* fastpath tx rings: tx_buf tx_desc */ + BNX2X_ALLOC(bnx2x_fp(bp, index, tx_buf_ring), + sizeof(struct sw_tx_bd) * NUM_TX_BD); + BNX2X_PCI_ALLOC(bnx2x_fp(bp, index, tx_desc_ring), + &bnx2x_fp(bp, index, tx_desc_mapping), + sizeof(union eth_tx_bd_types) * NUM_TX_BD); + } + + /* Rx */ + if (!skip_rx_queue(bp, index)) { + /* fastpath rx rings: rx_buf rx_desc rx_comp */ + BNX2X_ALLOC(bnx2x_fp(bp, index, rx_buf_ring), + sizeof(struct sw_rx_bd) * NUM_RX_BD); + BNX2X_PCI_ALLOC(bnx2x_fp(bp, index, rx_desc_ring), + &bnx2x_fp(bp, index, rx_desc_mapping), + sizeof(struct eth_rx_bd) * NUM_RX_BD); + + BNX2X_PCI_ALLOC(bnx2x_fp(bp, index, rx_comp_ring), + &bnx2x_fp(bp, index, rx_comp_mapping), + sizeof(struct eth_fast_path_rx_cqe) * + NUM_RCQ_BD); + + /* SGE ring */ + BNX2X_ALLOC(bnx2x_fp(bp, index, rx_page_ring), + sizeof(struct sw_rx_page) * NUM_RX_SGE); + BNX2X_PCI_ALLOC(bnx2x_fp(bp, index, rx_sge_ring), + &bnx2x_fp(bp, index, rx_sge_mapping), + BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); + /* RX BD ring */ + bnx2x_set_next_page_rx_bd(fp); + + /* CQ ring */ + bnx2x_set_next_page_rx_cq(fp); + + /* BDs */ + ring_size = bnx2x_alloc_rx_bds(fp, rx_ring_size); + if (ring_size < rx_ring_size) + goto alloc_mem_err; + } + + return 0; + +/* handles low memory cases */ +alloc_mem_err: + BNX2X_ERR("Unable to allocate full memory for queue %d (size %d)\n", + index, ring_size); + /* FW will drop all packets if queue is not big enough, + * In these cases we disable the queue + * Min size diferent for TPA and non-TPA queues + */ + if (ring_size < (fp->disable_tpa ? + MIN_RX_SIZE_TPA : MIN_RX_SIZE_NONTPA)) { + /* release memory allocated for this queue */ + bnx2x_free_fp_mem_at(bp, index); + return -ENOMEM; + } + return 0; +} + +int bnx2x_alloc_fp_mem(struct bnx2x *bp) +{ + int i; + + /** + * 1. Allocate FP for leading - fatal if error + * 2. {CNIC} Allocate FCoE FP - fatal if error + * 3. Allocate RSS - fix number of queues if error + */ + + /* leading */ + if (bnx2x_alloc_fp_mem_at(bp, 0)) + return -ENOMEM; +#ifdef BCM_CNIC + /* FCoE */ + if (bnx2x_alloc_fp_mem_at(bp, FCOE_IDX)) + return -ENOMEM; +#endif + /* RSS */ + for_each_nondefault_eth_queue(bp, i) + if (bnx2x_alloc_fp_mem_at(bp, i)) + break; + + /* handle memory failures */ + if (i != BNX2X_NUM_ETH_QUEUES(bp)) { + int delta = BNX2X_NUM_ETH_QUEUES(bp) - i; + + WARN_ON(delta < 0); +#ifdef BCM_CNIC + /** + * move non eth FPs next to last eth FP + * must be done in that order + * FCOE_IDX < FWD_IDX < OOO_IDX + */ + + /* move FCoE fp */ + bnx2x_move_fp(bp, FCOE_IDX, FCOE_IDX - delta); +#endif + bp->num_queues -= delta; + BNX2X_ERR("Adjusted num of queues from %d to %d\n", + bp->num_queues + delta, bp->num_queues); + } + + return 0; +} static int bnx2x_setup_irqs(struct bnx2x *bp) { diff --git a/drivers/net/bnx2x/bnx2x_cmn.h b/drivers/net/bnx2x/bnx2x_cmn.h index 1cdab69b2a5..fab161e8030 100644 --- a/drivers/net/bnx2x/bnx2x_cmn.h +++ b/drivers/net/bnx2x/bnx2x_cmn.h @@ -1,6 +1,6 @@ /* bnx2x_cmn.h: Broadcom Everest network driver. * - * Copyright (c) 2007-2010 Broadcom Corporation + * 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 @@ -25,260 +25,277 @@ 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 */ /** - * Initialize link parameters structure variables. - * - * @param bp - * @param load_mode + * bnx2x_initial_phy_init - initialize link parameters structure variables. * - * @return u8 + * @bp: driver handle + * @load_mode: current mode */ u8 bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode); /** - * Configure hw according to link parameters structure. + * bnx2x_link_set - configure hw according to link parameters structure. * - * @param bp + * @bp: driver handle */ void bnx2x_link_set(struct bnx2x *bp); /** - * Query link status + * bnx2x_link_test - query link status. * - * @param bp - * @param is_serdes + * @bp: driver handle + * @is_serdes: bool * - * @return 0 - link is UP + * Returns 0 if link is UP. */ u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes); /** - * Handles link status change + * bnx2x__link_status_update - handles link status change. * - * @param bp + * @bp: driver handle */ void bnx2x__link_status_update(struct bnx2x *bp); /** - * Report link status to upper layer - * - * @param bp + * bnx2x_link_report - report link status to upper layer. * - * @return int + * @bp: driver handle */ void bnx2x_link_report(struct bnx2x *bp); +/* None-atomic version of bnx2x_link_report() */ +void __bnx2x_link_report(struct bnx2x *bp); + /** - * calculates MF speed according to current linespeed and MF - * configuration + * bnx2x_get_mf_speed - calculate MF speed. * - * @param bp + * @bp: driver handle * - * @return u16 + * Takes into account current linespeed and MF configuration. */ u16 bnx2x_get_mf_speed(struct bnx2x *bp); /** - * MSI-X slowpath interrupt handler - * - * @param irq - * @param dev_instance + * bnx2x_msix_sp_int - MSI-X slowpath interrupt handler * - * @return irqreturn_t + * @irq: irq number + * @dev_instance: private instance */ irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance); |