Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1 | /* bnx2x_cmn.c: Broadcom Everest network driver. |
| 2 | * |
Yuval Mintz | 247fa82 | 2013-01-14 05:11:50 +0000 | [diff] [blame] | 3 | * Copyright (c) 2007-2013 Broadcom Corporation |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation. |
| 8 | * |
Ariel Elior | 08f6dd8 | 2014-05-27 13:11:36 +0300 | [diff] [blame] | 9 | * Maintained by: Ariel Elior <ariel.elior@qlogic.com> |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 10 | * Written by: Eliezer Tamir |
| 11 | * Based on code from Michael Chan's bnx2 driver |
| 12 | * UDP CSUM errata workaround by Arik Gendelman |
| 13 | * Slowpath and fastpath rework by Vladislav Zolotarov |
| 14 | * Statistics and Link management by Yitchak Gertner |
| 15 | * |
| 16 | */ |
| 17 | |
Joe Perches | f1deab5 | 2011-08-14 12:16:21 +0000 | [diff] [blame] | 18 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 19 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 20 | #include <linux/etherdevice.h> |
Hao Zheng | 9bcc089 | 2010-10-20 13:56:11 +0000 | [diff] [blame] | 21 | #include <linux/if_vlan.h> |
Alexey Dobriyan | a6b7a40 | 2011-06-06 10:43:46 +0000 | [diff] [blame] | 22 | #include <linux/interrupt.h> |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 23 | #include <linux/ip.h> |
Amir Vadai | c993189 | 2014-08-25 16:06:54 +0300 | [diff] [blame] | 24 | #include <linux/crash_dump.h> |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 25 | #include <net/tcp.h> |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 26 | #include <net/ipv6.h> |
Stephen Rothwell | 7f3e01f | 2010-07-28 22:20:34 -0700 | [diff] [blame] | 27 | #include <net/ip6_checksum.h> |
Eliezer Tamir | 076bb0c | 2013-07-10 17:13:17 +0300 | [diff] [blame] | 28 | #include <net/busy_poll.h> |
Paul Gortmaker | c0cba59 | 2011-05-22 11:02:08 +0000 | [diff] [blame] | 29 | #include <linux/prefetch.h> |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 30 | #include "bnx2x_cmn.h" |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 31 | #include "bnx2x_init.h" |
Vladislav Zolotarov | 042181f | 2011-06-14 01:33:39 +0000 | [diff] [blame] | 32 | #include "bnx2x_sp.h" |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 33 | |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 34 | static void bnx2x_free_fp_mem_cnic(struct bnx2x *bp); |
| 35 | static int bnx2x_alloc_fp_mem_cnic(struct bnx2x *bp); |
| 36 | static int bnx2x_alloc_fp_mem(struct bnx2x *bp); |
| 37 | static int bnx2x_poll(struct napi_struct *napi, int budget); |
| 38 | |
| 39 | static void bnx2x_add_all_napi_cnic(struct bnx2x *bp) |
| 40 | { |
| 41 | int i; |
| 42 | |
| 43 | /* Add NAPI objects */ |
| 44 | for_each_rx_queue_cnic(bp, i) { |
| 45 | netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi), |
| 46 | bnx2x_poll, NAPI_POLL_WEIGHT); |
| 47 | napi_hash_add(&bnx2x_fp(bp, i, napi)); |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | static void bnx2x_add_all_napi(struct bnx2x *bp) |
| 52 | { |
| 53 | int i; |
| 54 | |
| 55 | /* Add NAPI objects */ |
| 56 | for_each_eth_queue(bp, i) { |
| 57 | netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi), |
| 58 | bnx2x_poll, NAPI_POLL_WEIGHT); |
| 59 | napi_hash_add(&bnx2x_fp(bp, i, napi)); |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | static int bnx2x_calc_num_queues(struct bnx2x *bp) |
| 64 | { |
Michal Schmidt | 7d0445d | 2014-02-25 16:04:24 +0100 | [diff] [blame] | 65 | int nq = bnx2x_num_queues ? : netif_get_num_default_rss_queues(); |
Michal Schmidt | ff2ad30 | 2014-02-25 16:04:25 +0100 | [diff] [blame] | 66 | |
| 67 | /* Reduce memory usage in kdump environment by using only one queue */ |
Amir Vadai | c993189 | 2014-08-25 16:06:54 +0300 | [diff] [blame] | 68 | if (is_kdump_kernel()) |
Michal Schmidt | ff2ad30 | 2014-02-25 16:04:25 +0100 | [diff] [blame] | 69 | nq = 1; |
| 70 | |
Michal Schmidt | 7d0445d | 2014-02-25 16:04:24 +0100 | [diff] [blame] | 71 | nq = clamp(nq, 1, BNX2X_MAX_QUEUES(bp)); |
| 72 | return nq; |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 73 | } |
| 74 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 75 | /** |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 76 | * bnx2x_move_fp - move content of the fastpath structure. |
| 77 | * |
| 78 | * @bp: driver handle |
| 79 | * @from: source FP index |
| 80 | * @to: destination FP index |
| 81 | * |
| 82 | * Makes sure the contents of the bp->fp[to].napi is kept |
Ariel Elior | 7275408 | 2011-11-13 04:34:31 +0000 | [diff] [blame] | 83 | * intact. This is done by first copying the napi struct from |
| 84 | * the target to the source, and then mem copying the entire |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 85 | * source onto the target. Update txdata pointers and related |
| 86 | * content. |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 87 | */ |
| 88 | static inline void bnx2x_move_fp(struct bnx2x *bp, int from, int to) |
| 89 | { |
| 90 | struct bnx2x_fastpath *from_fp = &bp->fp[from]; |
| 91 | struct bnx2x_fastpath *to_fp = &bp->fp[to]; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 92 | struct bnx2x_sp_objs *from_sp_objs = &bp->sp_objs[from]; |
| 93 | struct bnx2x_sp_objs *to_sp_objs = &bp->sp_objs[to]; |
| 94 | struct bnx2x_fp_stats *from_fp_stats = &bp->fp_stats[from]; |
| 95 | struct bnx2x_fp_stats *to_fp_stats = &bp->fp_stats[to]; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 96 | int old_max_eth_txqs, new_max_eth_txqs; |
| 97 | int old_txdata_index = 0, new_txdata_index = 0; |
Yuval Mintz | 34d5626 | 2013-08-28 01:13:01 +0300 | [diff] [blame] | 98 | struct bnx2x_agg_info *old_tpa_info = to_fp->tpa_info; |
Ariel Elior | 7275408 | 2011-11-13 04:34:31 +0000 | [diff] [blame] | 99 | |
| 100 | /* Copy the NAPI object as it has been already initialized */ |
| 101 | from_fp->napi = to_fp->napi; |
| 102 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 103 | /* Move bnx2x_fastpath contents */ |
| 104 | memcpy(to_fp, from_fp, sizeof(*to_fp)); |
| 105 | to_fp->index = to; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 106 | |
Yuval Mintz | 34d5626 | 2013-08-28 01:13:01 +0300 | [diff] [blame] | 107 | /* Retain the tpa_info of the original `to' version as we don't want |
| 108 | * 2 FPs to contain the same tpa_info pointer. |
| 109 | */ |
| 110 | to_fp->tpa_info = old_tpa_info; |
| 111 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 112 | /* move sp_objs contents as well, as their indices match fp ones */ |
| 113 | memcpy(to_sp_objs, from_sp_objs, sizeof(*to_sp_objs)); |
| 114 | |
| 115 | /* move fp_stats contents as well, as their indices match fp ones */ |
| 116 | memcpy(to_fp_stats, from_fp_stats, sizeof(*to_fp_stats)); |
| 117 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 118 | /* Update txdata pointers in fp and move txdata content accordingly: |
| 119 | * Each fp consumes 'max_cos' txdata structures, so the index should be |
| 120 | * decremented by max_cos x delta. |
| 121 | */ |
| 122 | |
| 123 | old_max_eth_txqs = BNX2X_NUM_ETH_QUEUES(bp) * (bp)->max_cos; |
| 124 | new_max_eth_txqs = (BNX2X_NUM_ETH_QUEUES(bp) - from + to) * |
| 125 | (bp)->max_cos; |
| 126 | if (from == FCOE_IDX(bp)) { |
| 127 | old_txdata_index = old_max_eth_txqs + FCOE_TXQ_IDX_OFFSET; |
| 128 | new_txdata_index = new_max_eth_txqs + FCOE_TXQ_IDX_OFFSET; |
| 129 | } |
| 130 | |
Yuval Mintz | 4864a16 | 2013-01-10 04:53:39 +0000 | [diff] [blame] | 131 | memcpy(&bp->bnx2x_txq[new_txdata_index], |
| 132 | &bp->bnx2x_txq[old_txdata_index], |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 133 | sizeof(struct bnx2x_fp_txdata)); |
| 134 | to_fp->txdata_ptr[0] = &bp->bnx2x_txq[new_txdata_index]; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 135 | } |
| 136 | |
Ariel Elior | 8ca5e17 | 2013-01-01 05:22:34 +0000 | [diff] [blame] | 137 | /** |
| 138 | * bnx2x_fill_fw_str - Fill buffer with FW version string. |
| 139 | * |
| 140 | * @bp: driver handle |
| 141 | * @buf: character buffer to fill with the fw name |
| 142 | * @buf_len: length of the above buffer |
| 143 | * |
| 144 | */ |
| 145 | void bnx2x_fill_fw_str(struct bnx2x *bp, char *buf, size_t buf_len) |
| 146 | { |
| 147 | if (IS_PF(bp)) { |
| 148 | u8 phy_fw_ver[PHY_FW_VER_LEN]; |
| 149 | |
| 150 | phy_fw_ver[0] = '\0'; |
| 151 | bnx2x_get_ext_phy_fw_version(&bp->link_params, |
| 152 | phy_fw_ver, PHY_FW_VER_LEN); |
| 153 | strlcpy(buf, bp->fw_ver, buf_len); |
| 154 | snprintf(buf + strlen(bp->fw_ver), 32 - strlen(bp->fw_ver), |
| 155 | "bc %d.%d.%d%s%s", |
| 156 | (bp->common.bc_ver & 0xff0000) >> 16, |
| 157 | (bp->common.bc_ver & 0xff00) >> 8, |
| 158 | (bp->common.bc_ver & 0xff), |
| 159 | ((phy_fw_ver[0] != '\0') ? " phy " : ""), phy_fw_ver); |
| 160 | } else { |
Ariel Elior | 6411280 | 2013-01-07 00:50:23 +0000 | [diff] [blame] | 161 | bnx2x_vf_fill_fw_str(bp, buf, buf_len); |
Ariel Elior | 8ca5e17 | 2013-01-01 05:22:34 +0000 | [diff] [blame] | 162 | } |
| 163 | } |
| 164 | |
David S. Miller | 4b87f92 | 2013-01-15 15:05:59 -0500 | [diff] [blame] | 165 | /** |
Yuval Mintz | 4864a16 | 2013-01-10 04:53:39 +0000 | [diff] [blame] | 166 | * bnx2x_shrink_eth_fp - guarantees fastpath structures stay intact |
| 167 | * |
| 168 | * @bp: driver handle |
| 169 | * @delta: number of eth queues which were not allocated |
| 170 | */ |
| 171 | static void bnx2x_shrink_eth_fp(struct bnx2x *bp, int delta) |
| 172 | { |
| 173 | int i, cos, old_eth_num = BNX2X_NUM_ETH_QUEUES(bp); |
| 174 | |
| 175 | /* Queue pointer cannot be re-set on an fp-basis, as moving pointer |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 176 | * backward along the array could cause memory to be overridden |
Yuval Mintz | 4864a16 | 2013-01-10 04:53:39 +0000 | [diff] [blame] | 177 | */ |
| 178 | for (cos = 1; cos < bp->max_cos; cos++) { |
| 179 | for (i = 0; i < old_eth_num - delta; i++) { |
| 180 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
| 181 | int new_idx = cos * (old_eth_num - delta) + i; |
| 182 | |
| 183 | memcpy(&bp->bnx2x_txq[new_idx], fp->txdata_ptr[cos], |
| 184 | sizeof(struct bnx2x_fp_txdata)); |
| 185 | fp->txdata_ptr[cos] = &bp->bnx2x_txq[new_idx]; |
| 186 | } |
| 187 | } |
| 188 | } |
| 189 | |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 190 | int bnx2x_load_count[2][3] = { {0} }; /* per-path: 0-common, 1-port0, 2-port1 */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 191 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 192 | /* free skb in the packet ring at pos idx |
| 193 | * return idx of last bd freed |
| 194 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 195 | static u16 bnx2x_free_tx_pkt(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata, |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 196 | u16 idx, unsigned int *pkts_compl, |
| 197 | unsigned int *bytes_compl) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 198 | { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 199 | struct sw_tx_bd *tx_buf = &txdata->tx_buf_ring[idx]; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 200 | struct eth_tx_start_bd *tx_start_bd; |
| 201 | struct eth_tx_bd *tx_data_bd; |
| 202 | struct sk_buff *skb = tx_buf->skb; |
| 203 | u16 bd_idx = TX_BD(tx_buf->first_bd), new_cons; |
| 204 | int nbd; |
Michal Schmidt | 95e92fd | 2014-01-09 14:36:27 +0100 | [diff] [blame] | 205 | u16 split_bd_len = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 206 | |
| 207 | /* prefetch skb end pointer to speedup dev_kfree_skb() */ |
| 208 | prefetch(&skb->end); |
| 209 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 210 | DP(NETIF_MSG_TX_DONE, "fp[%d]: pkt_idx %d buff @(%p)->skb %p\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 211 | txdata->txq_index, idx, tx_buf, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 212 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 213 | tx_start_bd = &txdata->tx_desc_ring[bd_idx].start_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 214 | |
| 215 | nbd = le16_to_cpu(tx_start_bd->nbd) - 1; |
| 216 | #ifdef BNX2X_STOP_ON_ERROR |
| 217 | if ((nbd - 1) > (MAX_SKB_FRAGS + 2)) { |
| 218 | BNX2X_ERR("BAD nbd!\n"); |
| 219 | bnx2x_panic(); |
| 220 | } |
| 221 | #endif |
| 222 | new_cons = nbd + tx_buf->first_bd; |
| 223 | |
| 224 | /* Get the next bd */ |
| 225 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 226 | |
| 227 | /* Skip a parse bd... */ |
| 228 | --nbd; |
| 229 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 230 | |
Dmitry Kravkov | fe26566d | 2014-07-24 18:54:47 +0300 | [diff] [blame] | 231 | if (tx_buf->flags & BNX2X_HAS_SECOND_PBD) { |
| 232 | /* Skip second parse bd... */ |
| 233 | --nbd; |
| 234 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 235 | } |
| 236 | |
Michal Schmidt | 95e92fd | 2014-01-09 14:36:27 +0100 | [diff] [blame] | 237 | /* TSO headers+data bds share a common mapping. See bnx2x_tx_split() */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 238 | if (tx_buf->flags & BNX2X_TSO_SPLIT_BD) { |
Michal Schmidt | 95e92fd | 2014-01-09 14:36:27 +0100 | [diff] [blame] | 239 | tx_data_bd = &txdata->tx_desc_ring[bd_idx].reg_bd; |
| 240 | split_bd_len = BD_UNMAP_LEN(tx_data_bd); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 241 | --nbd; |
| 242 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 243 | } |
| 244 | |
Michal Schmidt | 95e92fd | 2014-01-09 14:36:27 +0100 | [diff] [blame] | 245 | /* unmap first bd */ |
| 246 | dma_unmap_single(&bp->pdev->dev, BD_UNMAP_ADDR(tx_start_bd), |
| 247 | BD_UNMAP_LEN(tx_start_bd) + split_bd_len, |
| 248 | DMA_TO_DEVICE); |
| 249 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 250 | /* now free frags */ |
| 251 | while (nbd > 0) { |
| 252 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 253 | tx_data_bd = &txdata->tx_desc_ring[bd_idx].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 254 | dma_unmap_page(&bp->pdev->dev, BD_UNMAP_ADDR(tx_data_bd), |
| 255 | BD_UNMAP_LEN(tx_data_bd), DMA_TO_DEVICE); |
| 256 | if (--nbd) |
| 257 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 258 | } |
| 259 | |
| 260 | /* release skb */ |
| 261 | WARN_ON(!skb); |
Yuval Mintz | d8290ae | 2012-03-18 10:33:37 +0000 | [diff] [blame] | 262 | if (likely(skb)) { |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 263 | (*pkts_compl)++; |
| 264 | (*bytes_compl) += skb->len; |
Yuval Mintz | e161590 | 2015-08-10 12:49:35 +0300 | [diff] [blame] | 265 | dev_kfree_skb_any(skb); |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 266 | } |
Yuval Mintz | d8290ae | 2012-03-18 10:33:37 +0000 | [diff] [blame] | 267 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 268 | tx_buf->first_bd = 0; |
| 269 | tx_buf->skb = NULL; |
| 270 | |
| 271 | return new_cons; |
| 272 | } |
| 273 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 274 | int bnx2x_tx_int(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 275 | { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 276 | struct netdev_queue *txq; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 277 | u16 hw_cons, sw_cons, bd_cons = txdata->tx_bd_cons; |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 278 | unsigned int pkts_compl = 0, bytes_compl = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 279 | |
| 280 | #ifdef BNX2X_STOP_ON_ERROR |
| 281 | if (unlikely(bp->panic)) |
| 282 | return -1; |
| 283 | #endif |
| 284 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 285 | txq = netdev_get_tx_queue(bp->dev, txdata->txq_index); |
| 286 | hw_cons = le16_to_cpu(*txdata->tx_cons_sb); |
| 287 | sw_cons = txdata->tx_pkt_cons; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 288 | |
| 289 | while (sw_cons != hw_cons) { |
| 290 | u16 pkt_cons; |
| 291 | |
| 292 | pkt_cons = TX_BD(sw_cons); |
| 293 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 294 | DP(NETIF_MSG_TX_DONE, |
| 295 | "queue[%d]: hw_cons %u sw_cons %u pkt_cons %u\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 296 | txdata->txq_index, hw_cons, sw_cons, pkt_cons); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 297 | |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 298 | bd_cons = bnx2x_free_tx_pkt(bp, txdata, pkt_cons, |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 299 | &pkts_compl, &bytes_compl); |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 300 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 301 | sw_cons++; |
| 302 | } |
| 303 | |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 304 | netdev_tx_completed_queue(txq, pkts_compl, bytes_compl); |
| 305 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 306 | txdata->tx_pkt_cons = sw_cons; |
| 307 | txdata->tx_bd_cons = bd_cons; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 308 | |
| 309 | /* Need to make the tx_bd_cons update visible to start_xmit() |
| 310 | * before checking for netif_tx_queue_stopped(). Without the |
| 311 | * memory barrier, there is a small possibility that |
| 312 | * start_xmit() will miss it and cause the queue to be stopped |
| 313 | * forever. |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 314 | * On the other hand we need an rmb() here to ensure the proper |
| 315 | * ordering of bit testing in the following |
| 316 | * netif_tx_queue_stopped(txq) call. |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 317 | */ |
| 318 | smp_mb(); |
| 319 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 320 | if (unlikely(netif_tx_queue_stopped(txq))) { |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 321 | /* Taking tx_lock() is needed to prevent re-enabling the queue |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 322 | * while it's empty. This could have happen if rx_action() gets |
| 323 | * suspended in bnx2x_tx_int() after the condition before |
| 324 | * netif_tx_wake_queue(), while tx_action (bnx2x_start_xmit()): |
| 325 | * |
| 326 | * stops the queue->sees fresh tx_bd_cons->releases the queue-> |
| 327 | * sends some packets consuming the whole queue again-> |
| 328 | * stops the queue |
| 329 | */ |
| 330 | |
| 331 | __netif_tx_lock(txq, smp_processor_id()); |
| 332 | |
| 333 | if ((netif_tx_queue_stopped(txq)) && |
| 334 | (bp->state == BNX2X_STATE_OPEN) && |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 335 | (bnx2x_tx_avail(bp, txdata) >= MAX_DESC_PER_TX_PKT)) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 336 | netif_tx_wake_queue(txq); |
| 337 | |
| 338 | __netif_tx_unlock(txq); |
| 339 | } |
| 340 | return 0; |
| 341 | } |
| 342 | |
| 343 | static inline void bnx2x_update_last_max_sge(struct bnx2x_fastpath *fp, |
| 344 | u16 idx) |
| 345 | { |
| 346 | u16 last_max = fp->last_max_sge; |
| 347 | |
| 348 | if (SUB_S16(idx, last_max) > 0) |
| 349 | fp->last_max_sge = idx; |
| 350 | } |
| 351 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 352 | static inline void bnx2x_update_sge_prod(struct bnx2x_fastpath *fp, |
| 353 | u16 sge_len, |
| 354 | struct eth_end_agg_rx_cqe *cqe) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 355 | { |
| 356 | struct bnx2x *bp = fp->bp; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 357 | u16 last_max, last_elem, first_elem; |
| 358 | u16 delta = 0; |
| 359 | u16 i; |
| 360 | |
| 361 | if (!sge_len) |
| 362 | return; |
| 363 | |
| 364 | /* First mark all used pages */ |
| 365 | for (i = 0; i < sge_len; i++) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 366 | BIT_VEC64_CLEAR_BIT(fp->sge_mask, |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 367 | RX_SGE(le16_to_cpu(cqe->sgl_or_raw_data.sgl[i]))); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 368 | |
| 369 | DP(NETIF_MSG_RX_STATUS, "fp_cqe->sgl[%d] = %d\n", |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 370 | sge_len - 1, le16_to_cpu(cqe->sgl_or_raw_data.sgl[sge_len - 1])); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 371 | |
| 372 | /* Here we assume that the last SGE index is the biggest */ |
| 373 | prefetch((void *)(fp->sge_mask)); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 374 | bnx2x_update_last_max_sge(fp, |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 375 | le16_to_cpu(cqe->sgl_or_raw_data.sgl[sge_len - 1])); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 376 | |
| 377 | last_max = RX_SGE(fp->last_max_sge); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 378 | last_elem = last_max >> BIT_VEC64_ELEM_SHIFT; |
| 379 | first_elem = RX_SGE(fp->rx_sge_prod) >> BIT_VEC64_ELEM_SHIFT; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 380 | |
| 381 | /* If ring is not full */ |
| 382 | if (last_elem + 1 != first_elem) |
| 383 | last_elem++; |
| 384 | |
| 385 | /* Now update the prod */ |
| 386 | for (i = first_elem; i != last_elem; i = NEXT_SGE_MASK_ELEM(i)) { |
| 387 | if (likely(fp->sge_mask[i])) |
| 388 | break; |
| 389 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 390 | fp->sge_mask[i] = BIT_VEC64_ELEM_ONE_MASK; |
| 391 | delta += BIT_VEC64_ELEM_SZ; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 392 | } |
| 393 | |
| 394 | if (delta > 0) { |
| 395 | fp->rx_sge_prod += delta; |
| 396 | /* clear page-end entries */ |
| 397 | bnx2x_clear_sge_mask_next_elems(fp); |
| 398 | } |
| 399 | |
| 400 | DP(NETIF_MSG_RX_STATUS, |
| 401 | "fp->last_max_sge = %d fp->rx_sge_prod = %d\n", |
| 402 | fp->last_max_sge, fp->rx_sge_prod); |
| 403 | } |
| 404 | |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 405 | /* Get Toeplitz hash value in the skb using the value from the |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 406 | * CQE (calculated by HW). |
| 407 | */ |
| 408 | static u32 bnx2x_get_rxhash(const struct bnx2x *bp, |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 409 | const struct eth_fast_path_rx_cqe *cqe, |
Tom Herbert | 5495ab7 | 2013-12-19 08:59:08 -0800 | [diff] [blame] | 410 | enum pkt_hash_types *rxhash_type) |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 411 | { |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 412 | /* Get Toeplitz hash from CQE */ |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 413 | if ((bp->dev->features & NETIF_F_RXHASH) && |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 414 | (cqe->status_flags & ETH_FAST_PATH_RX_CQE_RSS_HASH_FLG)) { |
| 415 | enum eth_rss_hash_type htype; |
| 416 | |
| 417 | htype = cqe->status_flags & ETH_FAST_PATH_RX_CQE_RSS_HASH_TYPE; |
Tom Herbert | 5495ab7 | 2013-12-19 08:59:08 -0800 | [diff] [blame] | 418 | *rxhash_type = ((htype == TCP_IPV4_HASH_TYPE) || |
| 419 | (htype == TCP_IPV6_HASH_TYPE)) ? |
| 420 | PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3; |
| 421 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 422 | return le32_to_cpu(cqe->rss_hash_result); |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 423 | } |
Tom Herbert | 5495ab7 | 2013-12-19 08:59:08 -0800 | [diff] [blame] | 424 | *rxhash_type = PKT_HASH_TYPE_NONE; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 425 | return 0; |
| 426 | } |
| 427 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 428 | static void bnx2x_tpa_start(struct bnx2x_fastpath *fp, u16 queue, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 429 | u16 cons, u16 prod, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 430 | struct eth_fast_path_rx_cqe *cqe) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 431 | { |
| 432 | struct bnx2x *bp = fp->bp; |
| 433 | struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons]; |
| 434 | struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod]; |
| 435 | struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod]; |
| 436 | dma_addr_t mapping; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 437 | struct bnx2x_agg_info *tpa_info = &fp->tpa_info[queue]; |
| 438 | struct sw_rx_bd *first_buf = &tpa_info->first_buf; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 439 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 440 | /* print error if current state != stop */ |
| 441 | if (tpa_info->tpa_state != BNX2X_TPA_STOP) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 442 | BNX2X_ERR("start of bin not in stop [%d]\n", queue); |
| 443 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 444 | /* Try to map an empty data buffer from the aggregation info */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 445 | mapping = dma_map_single(&bp->pdev->dev, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 446 | first_buf->data + NET_SKB_PAD, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 447 | fp->rx_buf_size, DMA_FROM_DEVICE); |
| 448 | /* |
| 449 | * ...if it fails - move the skb from the consumer to the producer |
| 450 | * and set the current aggregation state as ERROR to drop it |
| 451 | * when TPA_STOP arrives. |
| 452 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 453 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 454 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 455 | /* Move the BD from the consumer to the producer */ |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 456 | bnx2x_reuse_rx_data(fp, cons, prod); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 457 | tpa_info->tpa_state = BNX2X_TPA_ERROR; |
| 458 | return; |
| 459 | } |
| 460 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 461 | /* move empty data from pool to prod */ |
| 462 | prod_rx_buf->data = first_buf->data; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 463 | dma_unmap_addr_set(prod_rx_buf, mapping, mapping); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 464 | /* point prod_bd to new data */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 465 | prod_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 466 | prod_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 467 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 468 | /* move partial skb from cons to pool (don't unmap yet) */ |
| 469 | *first_buf = *cons_rx_buf; |
| 470 | |
| 471 | /* mark bin state as START */ |
| 472 | tpa_info->parsing_flags = |
| 473 | le16_to_cpu(cqe->pars_flags.flags); |
| 474 | tpa_info->vlan_tag = le16_to_cpu(cqe->vlan_tag); |
| 475 | tpa_info->tpa_state = BNX2X_TPA_START; |
| 476 | tpa_info->len_on_bd = le16_to_cpu(cqe->len_on_bd); |
| 477 | tpa_info->placement_offset = cqe->placement_offset; |
Tom Herbert | 5495ab7 | 2013-12-19 08:59:08 -0800 | [diff] [blame] | 478 | tpa_info->rxhash = bnx2x_get_rxhash(bp, cqe, &tpa_info->rxhash_type); |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 479 | if (fp->mode == TPA_MODE_GRO) { |
| 480 | u16 gro_size = le16_to_cpu(cqe->pkt_len_or_gro_seg_len); |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 481 | tpa_info->full_page = SGE_PAGES / gro_size * gro_size; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 482 | tpa_info->gro_size = gro_size; |
| 483 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 484 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 485 | #ifdef BNX2X_STOP_ON_ERROR |
| 486 | fp->tpa_queue_used |= (1 << queue); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 487 | DP(NETIF_MSG_RX_STATUS, "fp->tpa_queue_used = 0x%llx\n", |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 488 | fp->tpa_queue_used); |
| 489 | #endif |
| 490 | } |
| 491 | |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 492 | /* Timestamp option length allowed for TPA aggregation: |
| 493 | * |
| 494 | * nop nop kind length echo val |
| 495 | */ |
| 496 | #define TPA_TSTAMP_OPT_LEN 12 |
| 497 | /** |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 498 | * bnx2x_set_gro_params - compute GRO values |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 499 | * |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 500 | * @skb: packet skb |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 501 | * @parsing_flags: parsing flags from the START CQE |
| 502 | * @len_on_bd: total length of the first packet for the |
| 503 | * aggregation. |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 504 | * @pkt_len: length of all segments |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 505 | * |
| 506 | * Approximate value of the MSS for this aggregation calculated using |
| 507 | * the first packet of it. |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 508 | * Compute number of aggregated segments, and gso_type. |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 509 | */ |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 510 | static void bnx2x_set_gro_params(struct sk_buff *skb, u16 parsing_flags, |
Yuval Mintz | ab5777d | 2013-03-11 05:17:47 +0000 | [diff] [blame] | 511 | u16 len_on_bd, unsigned int pkt_len, |
| 512 | u16 num_of_coalesced_segs) |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 513 | { |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 514 | /* TPA aggregation won't have either IP options or TCP options |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 515 | * other than timestamp or IPv6 extension headers. |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 516 | */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 517 | u16 hdrs_len = ETH_HLEN + sizeof(struct tcphdr); |
| 518 | |
| 519 | if (GET_FLAG(parsing_flags, PARSING_FLAGS_OVER_ETHERNET_PROTOCOL) == |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 520 | PRS_FLAG_OVERETH_IPV6) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 521 | hdrs_len += sizeof(struct ipv6hdr); |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 522 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; |
| 523 | } else { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 524 | hdrs_len += sizeof(struct iphdr); |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 525 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; |
| 526 | } |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 527 | |
| 528 | /* Check if there was a TCP timestamp, if there is it's will |
| 529 | * always be 12 bytes length: nop nop kind length echo val. |
| 530 | * |
| 531 | * Otherwise FW would close the aggregation. |
| 532 | */ |
| 533 | if (parsing_flags & PARSING_FLAGS_TIME_STAMP_EXIST_FLAG) |
| 534 | hdrs_len += TPA_TSTAMP_OPT_LEN; |
| 535 | |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 536 | skb_shinfo(skb)->gso_size = len_on_bd - hdrs_len; |
| 537 | |
| 538 | /* tcp_gro_complete() will copy NAPI_GRO_CB(skb)->count |
| 539 | * to skb_shinfo(skb)->gso_segs |
| 540 | */ |
Yuval Mintz | ab5777d | 2013-03-11 05:17:47 +0000 | [diff] [blame] | 541 | NAPI_GRO_CB(skb)->count = num_of_coalesced_segs; |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 542 | } |
| 543 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 544 | static int bnx2x_alloc_rx_sge(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 545 | u16 index, gfp_t gfp_mask) |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 546 | { |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 547 | struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; |
| 548 | struct eth_rx_sge *sge = &fp->rx_sge_ring[index]; |
Gabriel Krisman Bertazi | 4cace67 | 2015-05-27 13:51:43 -0300 | [diff] [blame] | 549 | struct bnx2x_alloc_pool *pool = &fp->page_pool; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 550 | dma_addr_t mapping; |
| 551 | |
Gabriel Krisman Bertazi | 4cace67 | 2015-05-27 13:51:43 -0300 | [diff] [blame] | 552 | if (!pool->page || (PAGE_SIZE - pool->offset) < SGE_PAGE_SIZE) { |
| 553 | |
| 554 | /* put page reference used by the memory pool, since we |
| 555 | * won't be using this page as the mempool anymore. |
| 556 | */ |
| 557 | if (pool->page) |
| 558 | put_page(pool->page); |
| 559 | |
| 560 | pool->page = alloc_pages(gfp_mask, PAGES_PER_SGE_SHIFT); |
| 561 | if (unlikely(!pool->page)) { |
| 562 | BNX2X_ERR("Can't alloc sge\n"); |
| 563 | return -ENOMEM; |
| 564 | } |
| 565 | |
Gabriel Krisman Bertazi | 4cace67 | 2015-05-27 13:51:43 -0300 | [diff] [blame] | 566 | pool->offset = 0; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 567 | } |
| 568 | |
Michal Schmidt | 8031612 | 2015-06-26 17:50:00 +0200 | [diff] [blame] | 569 | mapping = dma_map_page(&bp->pdev->dev, pool->page, |
| 570 | pool->offset, SGE_PAGE_SIZE, DMA_FROM_DEVICE); |
| 571 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 572 | BNX2X_ERR("Can't map sge\n"); |
| 573 | return -ENOMEM; |
| 574 | } |
| 575 | |
Gabriel Krisman Bertazi | 4cace67 | 2015-05-27 13:51:43 -0300 | [diff] [blame] | 576 | get_page(pool->page); |
| 577 | sw_buf->page = pool->page; |
| 578 | sw_buf->offset = pool->offset; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 579 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 580 | dma_unmap_addr_set(sw_buf, mapping, mapping); |
| 581 | |
| 582 | sge->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 583 | sge->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 584 | |
Gabriel Krisman Bertazi | 4cace67 | 2015-05-27 13:51:43 -0300 | [diff] [blame] | 585 | pool->offset += SGE_PAGE_SIZE; |
| 586 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 587 | return 0; |
| 588 | } |
| 589 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 590 | static int bnx2x_fill_frag_skb(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 591 | struct bnx2x_agg_info *tpa_info, |
| 592 | u16 pages, |
| 593 | struct sk_buff *skb, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 594 | struct eth_end_agg_rx_cqe *cqe, |
| 595 | u16 cqe_idx) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 596 | { |
| 597 | struct sw_rx_page *rx_pg, old_rx_pg; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 598 | u32 i, frag_len, frag_size; |
| 599 | int err, j, frag_id = 0; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 600 | u16 len_on_bd = tpa_info->len_on_bd; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 601 | u16 full_page = 0, gro_size = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 602 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 603 | frag_size = le16_to_cpu(cqe->pkt_len) - len_on_bd; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 604 | |
| 605 | if (fp->mode == TPA_MODE_GRO) { |
| 606 | gro_size = tpa_info->gro_size; |
| 607 | full_page = tpa_info->full_page; |
| 608 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 609 | |
| 610 | /* This is needed in order to enable forwarding support */ |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 611 | if (frag_size) |
| 612 | bnx2x_set_gro_params(skb, tpa_info->parsing_flags, len_on_bd, |
Yuval Mintz | ab5777d | 2013-03-11 05:17:47 +0000 | [diff] [blame] | 613 | le16_to_cpu(cqe->pkt_len), |
| 614 | le16_to_cpu(cqe->num_of_coalesced_segs)); |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 615 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 616 | #ifdef BNX2X_STOP_ON_ERROR |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 617 | if (pages > min_t(u32, 8, MAX_SKB_FRAGS) * SGE_PAGES) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 618 | BNX2X_ERR("SGL length is too long: %d. CQE index is %d\n", |
| 619 | pages, cqe_idx); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 620 | BNX2X_ERR("cqe->pkt_len = %d\n", cqe->pkt_len); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 621 | bnx2x_panic(); |
| 622 | return -EINVAL; |
| 623 | } |
| 624 | #endif |
| 625 | |
| 626 | /* Run through the SGL and compose the fragmented skb */ |
| 627 | for (i = 0, j = 0; i < pages; i += PAGES_PER_SGE, j++) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 628 | u16 sge_idx = RX_SGE(le16_to_cpu(cqe->sgl_or_raw_data.sgl[j])); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 629 | |
| 630 | /* FW gives the indices of the SGE as if the ring is an array |
| 631 | (meaning that "next" element will consume 2 indices) */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 632 | if (fp->mode == TPA_MODE_GRO) |
| 633 | frag_len = min_t(u32, frag_size, (u32)full_page); |
| 634 | else /* LRO */ |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 635 | frag_len = min_t(u32, frag_size, (u32)SGE_PAGES); |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 636 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 637 | rx_pg = &fp->rx_page_ring[sge_idx]; |
| 638 | old_rx_pg = *rx_pg; |
| 639 | |
| 640 | /* If we fail to allocate a substitute page, we simply stop |
| 641 | where we are and drop the whole packet */ |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 642 | err = bnx2x_alloc_rx_sge(bp, fp, sge_idx, GFP_ATOMIC); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 643 | if (unlikely(err)) { |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 644 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 645 | return err; |
| 646 | } |
| 647 | |
Michal Schmidt | 8031612 | 2015-06-26 17:50:00 +0200 | [diff] [blame] | 648 | dma_unmap_page(&bp->pdev->dev, |
| 649 | dma_unmap_addr(&old_rx_pg, mapping), |
| 650 | SGE_PAGE_SIZE, DMA_FROM_DEVICE); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 651 | /* Add one frag and update the appropriate fields in the skb */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 652 | if (fp->mode == TPA_MODE_LRO) |
Gabriel Krisman Bertazi | 4cace67 | 2015-05-27 13:51:43 -0300 | [diff] [blame] | 653 | skb_fill_page_desc(skb, j, old_rx_pg.page, |
| 654 | old_rx_pg.offset, frag_len); |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 655 | else { /* GRO */ |
| 656 | int rem; |
| 657 | int offset = 0; |
| 658 | for (rem = frag_len; rem > 0; rem -= gro_size) { |
| 659 | int len = rem > gro_size ? gro_size : rem; |
| 660 | skb_fill_page_desc(skb, frag_id++, |
Gabriel Krisman Bertazi | 4cace67 | 2015-05-27 13:51:43 -0300 | [diff] [blame] | 661 | old_rx_pg.page, |
| 662 | old_rx_pg.offset + offset, |
| 663 | len); |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 664 | if (offset) |
| 665 | get_page(old_rx_pg.page); |
| 666 | offset += len; |
| 667 | } |
| 668 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 669 | |
| 670 | skb->data_len += frag_len; |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 671 | skb->truesize += SGE_PAGES; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 672 | skb->len += frag_len; |
| 673 | |
| 674 | frag_size -= frag_len; |
| 675 | } |
| 676 | |
| 677 | return 0; |
| 678 | } |
| 679 | |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 680 | static void bnx2x_frag_free(const struct bnx2x_fastpath *fp, void *data) |
| 681 | { |
| 682 | if (fp->rx_frag_size) |
Alexander Duyck | e51423d | 2015-05-06 21:12:31 -0700 | [diff] [blame] | 683 | skb_free_frag(data); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 684 | else |
| 685 | kfree(data); |
| 686 | } |
| 687 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 688 | static void *bnx2x_frag_alloc(const struct bnx2x_fastpath *fp, gfp_t gfp_mask) |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 689 | { |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 690 | if (fp->rx_frag_size) { |
| 691 | /* GFP_KERNEL allocations are used only during initialization */ |
| 692 | if (unlikely(gfp_mask & __GFP_WAIT)) |
| 693 | return (void *)__get_free_page(gfp_mask); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 694 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 695 | return netdev_alloc_frag(fp->rx_frag_size); |
| 696 | } |
| 697 | |
| 698 | return kmalloc(fp->rx_buf_size + NET_SKB_PAD, gfp_mask); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 699 | } |
| 700 | |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 701 | #ifdef CONFIG_INET |
| 702 | static void bnx2x_gro_ip_csum(struct bnx2x *bp, struct sk_buff *skb) |
| 703 | { |
| 704 | const struct iphdr *iph = ip_hdr(skb); |
| 705 | struct tcphdr *th; |
| 706 | |
| 707 | skb_set_transport_header(skb, sizeof(struct iphdr)); |
| 708 | th = tcp_hdr(skb); |
| 709 | |
| 710 | th->check = ~tcp_v4_check(skb->len - skb_transport_offset(skb), |
| 711 | iph->saddr, iph->daddr, 0); |
| 712 | } |
| 713 | |
| 714 | static void bnx2x_gro_ipv6_csum(struct bnx2x *bp, struct sk_buff *skb) |
| 715 | { |
| 716 | struct ipv6hdr *iph = ipv6_hdr(skb); |
| 717 | struct tcphdr *th; |
| 718 | |
| 719 | skb_set_transport_header(skb, sizeof(struct ipv6hdr)); |
| 720 | th = tcp_hdr(skb); |
| 721 | |
| 722 | th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb), |
| 723 | &iph->saddr, &iph->daddr, 0); |
| 724 | } |
Yuval Mintz | 2c2d06d | 2013-04-24 01:44:58 +0000 | [diff] [blame] | 725 | |
| 726 | static void bnx2x_gro_csum(struct bnx2x *bp, struct sk_buff *skb, |
| 727 | void (*gro_func)(struct bnx2x*, struct sk_buff*)) |
| 728 | { |
| 729 | skb_set_network_header(skb, 0); |
| 730 | gro_func(bp, skb); |
| 731 | tcp_gro_complete(skb); |
| 732 | } |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 733 | #endif |
| 734 | |
| 735 | static void bnx2x_gro_receive(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 736 | struct sk_buff *skb) |
| 737 | { |
| 738 | #ifdef CONFIG_INET |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 739 | if (skb_shinfo(skb)->gso_size) { |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 740 | switch (be16_to_cpu(skb->protocol)) { |
| 741 | case ETH_P_IP: |
Yuval Mintz | 2c2d06d | 2013-04-24 01:44:58 +0000 | [diff] [blame] | 742 | bnx2x_gro_csum(bp, skb, bnx2x_gro_ip_csum); |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 743 | break; |
| 744 | case ETH_P_IPV6: |
Yuval Mintz | 2c2d06d | 2013-04-24 01:44:58 +0000 | [diff] [blame] | 745 | bnx2x_gro_csum(bp, skb, bnx2x_gro_ipv6_csum); |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 746 | break; |
| 747 | default: |
Yuval Mintz | 2c2d06d | 2013-04-24 01:44:58 +0000 | [diff] [blame] | 748 | BNX2X_ERR("Error: FW GRO supports only IPv4/IPv6, not 0x%04x\n", |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 749 | be16_to_cpu(skb->protocol)); |
| 750 | } |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 751 | } |
| 752 | #endif |
Eric Dumazet | 60e66fe | 2013-10-12 14:08:34 -0700 | [diff] [blame] | 753 | skb_record_rx_queue(skb, fp->rx_queue); |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 754 | napi_gro_receive(&fp->napi, skb); |
| 755 | } |
| 756 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 757 | static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 758 | struct bnx2x_agg_info *tpa_info, |
| 759 | u16 pages, |
| 760 | struct eth_end_agg_rx_cqe *cqe, |
| 761 | u16 cqe_idx) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 762 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 763 | struct sw_rx_bd *rx_buf = &tpa_info->first_buf; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 764 | u8 pad = tpa_info->placement_offset; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 765 | u16 len = tpa_info->len_on_bd; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 766 | struct sk_buff *skb = NULL; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 767 | u8 *new_data, *data = rx_buf->data; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 768 | u8 old_tpa_state = tpa_info->tpa_state; |
| 769 | |
| 770 | tpa_info->tpa_state = BNX2X_TPA_STOP; |
| 771 | |
| 772 | /* If we there was an error during the handling of the TPA_START - |
| 773 | * drop this aggregation. |
| 774 | */ |
| 775 | if (old_tpa_state == BNX2X_TPA_ERROR) |
| 776 | goto drop; |
| 777 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 778 | /* Try to allocate the new data */ |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 779 | new_data = bnx2x_frag_alloc(fp, GFP_ATOMIC); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 780 | /* Unmap skb in the pool anyway, as we are going to change |
| 781 | pool entry status to BNX2X_TPA_STOP even if new skb allocation |
| 782 | fails. */ |
| 783 | dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(rx_buf, mapping), |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 784 | fp->rx_buf_size, DMA_FROM_DEVICE); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 785 | if (likely(new_data)) |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 786 | skb = build_skb(data, fp->rx_frag_size); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 787 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 788 | if (likely(skb)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 789 | #ifdef BNX2X_STOP_ON_ERROR |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 790 | if (pad + len > fp->rx_buf_size) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 791 | BNX2X_ERR("skb_put is about to fail... pad %d len %d rx_buf_size %d\n", |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 792 | pad, len, fp->rx_buf_size); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 793 | bnx2x_panic(); |
| 794 | return; |
| 795 | } |
| 796 | #endif |
| 797 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 798 | skb_reserve(skb, pad + NET_SKB_PAD); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 799 | skb_put(skb, len); |
Tom Herbert | 5495ab7 | 2013-12-19 08:59:08 -0800 | [diff] [blame] | 800 | skb_set_hash(skb, tpa_info->rxhash, tpa_info->rxhash_type); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 801 | |
| 802 | skb->protocol = eth_type_trans(skb, bp->dev); |
| 803 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 804 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 805 | if (!bnx2x_fill_frag_skb(bp, fp, tpa_info, pages, |
| 806 | skb, cqe, cqe_idx)) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 807 | if (tpa_info->parsing_flags & PARSING_FLAGS_VLAN) |
Patrick McHardy | 86a9bad | 2013-04-19 02:04:30 +0000 | [diff] [blame] | 808 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tpa_info->vlan_tag); |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 809 | bnx2x_gro_receive(bp, fp, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 810 | } else { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 811 | DP(NETIF_MSG_RX_STATUS, |
| 812 | "Failed to allocate new pages - dropping packet!\n"); |
Vladislav Zolotarov | 4095553 | 2011-05-22 10:06:58 +0000 | [diff] [blame] | 813 | dev_kfree_skb_any(skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 814 | } |
| 815 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 816 | /* put new data in bin */ |
| 817 | rx_buf->data = new_data; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 818 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 819 | return; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 820 | } |
Eric Dumazet | 07b0f00 | 2014-06-26 00:44:02 -0700 | [diff] [blame] | 821 | if (new_data) |
| 822 | bnx2x_frag_free(fp, new_data); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 823 | drop: |
| 824 | /* drop the packet and keep the buffer in the bin */ |
| 825 | DP(NETIF_MSG_RX_STATUS, |
| 826 | "Failed to allocate or map a new skb - dropping packet!\n"); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 827 | bnx2x_fp_stats(bp, fp)->eth_q_stats.rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 828 | } |
| 829 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 830 | static int bnx2x_alloc_rx_data(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 831 | u16 index, gfp_t gfp_mask) |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 832 | { |
| 833 | u8 *data; |
| 834 | struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[index]; |
| 835 | struct eth_rx_bd *rx_bd = &fp->rx_desc_ring[index]; |
| 836 | dma_addr_t mapping; |
| 837 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 838 | data = bnx2x_frag_alloc(fp, gfp_mask); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 839 | if (unlikely(data == NULL)) |
| 840 | return -ENOMEM; |
| 841 | |
| 842 | mapping = dma_map_single(&bp->pdev->dev, data + NET_SKB_PAD, |
| 843 | fp->rx_buf_size, |
| 844 | DMA_FROM_DEVICE); |
| 845 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 846 | bnx2x_frag_free(fp, data); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 847 | BNX2X_ERR("Can't map rx data\n"); |
| 848 | return -ENOMEM; |
| 849 | } |
| 850 | |
| 851 | rx_buf->data = data; |
| 852 | dma_unmap_addr_set(rx_buf, mapping, mapping); |
| 853 | |
| 854 | rx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 855 | rx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 856 | |
| 857 | return 0; |
| 858 | } |
| 859 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 860 | static |
| 861 | void bnx2x_csum_validate(struct sk_buff *skb, union eth_rx_cqe *cqe, |
| 862 | struct bnx2x_fastpath *fp, |
| 863 | struct bnx2x_eth_q_stats *qstats) |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 864 | { |
Michal Schmidt | e488921 | 2012-09-13 12:59:44 +0000 | [diff] [blame] | 865 | /* Do nothing if no L4 csum validation was done. |
| 866 | * We do not check whether IP csum was validated. For IPv4 we assume |
| 867 | * that if the card got as far as validating the L4 csum, it also |
| 868 | * validated the IP csum. IPv6 has no IP csum. |
| 869 | */ |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 870 | if (cqe->fast_path_cqe.status_flags & |
Michal Schmidt | e488921 | 2012-09-13 12:59:44 +0000 | [diff] [blame] | 871 | ETH_FAST_PATH_RX_CQE_L4_XSUM_NO_VALIDATION_FLG) |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 872 | return; |
| 873 | |
Michal Schmidt | e488921 | 2012-09-13 12:59:44 +0000 | [diff] [blame] | 874 | /* If L4 validation was done, check if an error was found. */ |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 875 | |
| 876 | if (cqe->fast_path_cqe.type_error_flags & |
| 877 | (ETH_FAST_PATH_RX_CQE_IP_BAD_XSUM_FLG | |
| 878 | ETH_FAST_PATH_RX_CQE_L4_BAD_XSUM_FLG)) |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 879 | qstats->hw_csum_err++; |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 880 | else |
| 881 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 882 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 883 | |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 884 | static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 885 | { |
| 886 | struct bnx2x *bp = fp->bp; |
| 887 | u16 bd_cons, bd_prod, bd_prod_fw, comp_ring_cons; |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 888 | u16 sw_comp_cons, sw_comp_prod; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 889 | int rx_pkt = 0; |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 890 | union eth_rx_cqe *cqe; |
| 891 | struct eth_fast_path_rx_cqe *cqe_fp; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 892 | |
| 893 | #ifdef BNX2X_STOP_ON_ERROR |
| 894 | if (unlikely(bp->panic)) |
| 895 | return 0; |
| 896 | #endif |
Eric W. Biederman | b352974 | 2014-03-14 17:57:59 -0700 | [diff] [blame] | 897 | if (budget <= 0) |
| 898 | return rx_pkt; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 899 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 900 | bd_cons = fp->rx_bd_cons; |
| 901 | bd_prod = fp->rx_bd_prod; |
| 902 | bd_prod_fw = bd_prod; |
| 903 | sw_comp_cons = fp->rx_comp_cons; |
| 904 | sw_comp_prod = fp->rx_comp_prod; |
| 905 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 906 | comp_ring_cons = RCQ_BD(sw_comp_cons); |
| 907 | cqe = &fp->rx_comp_ring[comp_ring_cons]; |
| 908 | cqe_fp = &cqe->fast_path_cqe; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 909 | |
| 910 | DP(NETIF_MSG_RX_STATUS, |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 911 | "queue[%d]: sw_comp_cons %u\n", fp->index, sw_comp_cons); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 912 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 913 | while (BNX2X_IS_CQE_COMPLETED(cqe_fp)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 914 | struct sw_rx_bd *rx_buf = NULL; |
| 915 | struct sk_buff *skb; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 916 | u8 cqe_fp_flags; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 917 | enum eth_rx_cqe_type cqe_fp_type; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 918 | u16 len, pad, queue; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 919 | u8 *data; |
Tom Herbert | bd5cef0 | 2013-12-17 23:23:11 -0800 | [diff] [blame] | 920 | u32 rxhash; |
Tom Herbert | 5495ab7 | 2013-12-19 08:59:08 -0800 | [diff] [blame] | 921 | enum pkt_hash_types rxhash_type; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 922 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 923 | #ifdef BNX2X_STOP_ON_ERROR |
| 924 | if (unlikely(bp->panic)) |
| 925 | return 0; |
| 926 | #endif |
| 927 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 928 | bd_prod = RX_BD(bd_prod); |
| 929 | bd_cons = RX_BD(bd_cons); |
| 930 | |
wenxiong@linux.vnet.ibm.com | 9aaae04 | 2014-06-03 14:14:46 -0500 | [diff] [blame] | 931 | /* A rmb() is required to ensure that the CQE is not read |
| 932 | * before it is written by the adapter DMA. PCI ordering |
| 933 | * rules will make sure the other fields are written before |
| 934 | * the marker at the end of struct eth_fast_path_rx_cqe |
| 935 | * but without rmb() a weakly ordered processor can process |
| 936 | * stale data. Without the barrier TPA state-machine might |
| 937 | * enter inconsistent state and kernel stack might be |
| 938 | * provided with incorrect packet description - these lead |
| 939 | * to various kernel crashed. |
| 940 | */ |
| 941 | rmb(); |
| 942 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 943 | cqe_fp_flags = cqe_fp->type_error_flags; |
| 944 | cqe_fp_type = cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 945 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 946 | DP(NETIF_MSG_RX_STATUS, |
| 947 | "CQE type %x err %x status %x queue %x vlan %x len %u\n", |
| 948 | CQE_TYPE(cqe_fp_flags), |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 949 | cqe_fp_flags, cqe_fp->status_flags, |
| 950 | le32_to_cpu(cqe_fp->rss_hash_result), |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 951 | le16_to_cpu(cqe_fp->vlan_tag), |
| 952 | le16_to_cpu(cqe_fp->pkt_len_or_gro_seg_len)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 953 | |
| 954 | /* is this a slowpath msg? */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 955 | if (unlikely(CQE_TYPE_SLOW(cqe_fp_type))) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 956 | bnx2x_sp_event(fp, cqe); |
| 957 | goto next_cqe; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 958 | } |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 959 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 960 | rx_buf = &fp->rx_buf_ring[bd_cons]; |
| 961 | data = rx_buf->data; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 962 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 963 | if (!CQE_TYPE_FAST(cqe_fp_type)) { |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 964 | struct bnx2x_agg_info *tpa_info; |
| 965 | u16 frag_size, pages; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 966 | #ifdef BNX2X_STOP_ON_ERROR |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 967 | /* sanity check */ |
Michal Schmidt | 7e6b4d4 | 2015-04-28 11:34:22 +0200 | [diff] [blame] | 968 | if (fp->mode == TPA_MODE_DISABLED && |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 969 | (CQE_TYPE_START(cqe_fp_type) || |
| 970 | CQE_TYPE_STOP(cqe_fp_type))) |
Michal Schmidt | 7e6b4d4 | 2015-04-28 11:34:22 +0200 | [diff] [blame] | 971 | BNX2X_ERR("START/STOP packet while TPA disabled, type %x\n", |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 972 | CQE_TYPE(cqe_fp_type)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 973 | #endif |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 974 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 975 | if (CQE_TYPE_START(cqe_fp_type)) { |
| 976 | u16 queue = cqe_fp->queue_index; |
| 977 | DP(NETIF_MSG_RX_STATUS, |
| 978 | "calling tpa_start on queue %d\n", |
| 979 | queue); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 980 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 981 | bnx2x_tpa_start(fp, queue, |
| 982 | bd_cons, bd_prod, |
| 983 | cqe_fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 984 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 985 | goto next_rx; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 986 | } |
| 987 | queue = cqe->end_agg_cqe.queue_index; |
| 988 | tpa_info = &fp->tpa_info[queue]; |
| 989 | DP(NETIF_MSG_RX_STATUS, |
| 990 | "calling tpa_stop on queue %d\n", |
| 991 | queue); |
| 992 | |
| 993 | frag_size = le16_to_cpu(cqe->end_agg_cqe.pkt_len) - |
| 994 | tpa_info->len_on_bd; |
| 995 | |
| 996 | if (fp->mode == TPA_MODE_GRO) |
| 997 | pages = (frag_size + tpa_info->full_page - 1) / |
| 998 | tpa_info->full_page; |
| 999 | else |
| 1000 | pages = SGE_PAGE_ALIGN(frag_size) >> |
| 1001 | SGE_PAGE_SHIFT; |
| 1002 | |
| 1003 | bnx2x_tpa_stop(bp, fp, tpa_info, pages, |
| 1004 | &cqe->end_agg_cqe, comp_ring_cons); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1005 | #ifdef BNX2X_STOP_ON_ERROR |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 1006 | if (bp->panic) |
| 1007 | return 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1008 | #endif |
| 1009 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 1010 | bnx2x_update_sge_prod(fp, pages, &cqe->end_agg_cqe); |
| 1011 | goto next_cqe; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1012 | } |
| 1013 | /* non TPA */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 1014 | len = le16_to_cpu(cqe_fp->pkt_len_or_gro_seg_len); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1015 | pad = cqe_fp->placement_offset; |
| 1016 | dma_sync_single_for_cpu(&bp->pdev->dev, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1017 | dma_unmap_addr(rx_buf, mapping), |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1018 | pad + RX_COPY_THRESH, |
| 1019 | DMA_FROM_DEVICE); |
| 1020 | pad += NET_SKB_PAD; |
| 1021 | prefetch(data + pad); /* speedup eth_type_trans() */ |
| 1022 | /* is this an error packet? */ |
| 1023 | if (unlikely(cqe_fp_flags & ETH_RX_ERROR_FALGS)) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1024 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1025 | "ERROR flags %x rx packet %u\n", |
| 1026 | cqe_fp_flags, sw_comp_cons); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 1027 | bnx2x_fp_qstats(bp, fp)->rx_err_discard_pkt++; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1028 | goto reuse_rx; |
| 1029 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1030 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1031 | /* Since we don't have a jumbo ring |
| 1032 | * copy small packets if mtu > 1500 |
| 1033 | */ |
| 1034 | if ((bp->dev->mtu > ETH_MAX_PACKET_SIZE) && |
| 1035 | (len <= RX_COPY_THRESH)) { |
Alexander Duyck | 45abfb1 | 2014-12-09 19:41:17 -0800 | [diff] [blame] | 1036 | skb = napi_alloc_skb(&fp->napi, len); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1037 | if (skb == NULL) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1038 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1039 | "ERROR packet dropped because of alloc failure\n"); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 1040 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1041 | goto reuse_rx; |
| 1042 | } |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1043 | memcpy(skb->data, data + pad, len); |
| 1044 | bnx2x_reuse_rx_data(fp, bd_cons, bd_prod); |
| 1045 | } else { |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 1046 | if (likely(bnx2x_alloc_rx_data(bp, fp, bd_prod, |
| 1047 | GFP_ATOMIC) == 0)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1048 | dma_unmap_single(&bp->pdev->dev, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1049 | dma_unmap_addr(rx_buf, mapping), |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1050 | fp->rx_buf_size, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1051 | DMA_FROM_DEVICE); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1052 | skb = build_skb(data, fp->rx_frag_size); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1053 | if (unlikely(!skb)) { |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1054 | bnx2x_frag_free(fp, data); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 1055 | bnx2x_fp_qstats(bp, fp)-> |
| 1056 | rx_skb_alloc_failed++; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1057 | goto next_rx; |
| 1058 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1059 | skb_reserve(skb, pad); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1060 | } else { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1061 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
| 1062 | "ERROR packet dropped because of alloc failure\n"); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 1063 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1064 | reuse_rx: |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1065 | bnx2x_reuse_rx_data(fp, bd_cons, bd_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1066 | goto next_rx; |
| 1067 | } |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 1068 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1069 | |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 1070 | skb_put(skb, len); |
| 1071 | skb->protocol = eth_type_trans(skb, bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1072 | |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 1073 | /* Set Toeplitz hash for a none-LRO skb */ |
Tom Herbert | 5495ab7 | 2013-12-19 08:59:08 -0800 | [diff] [blame] | 1074 | rxhash = bnx2x_get_rxhash(bp, cqe_fp, &rxhash_type); |
| 1075 | skb_set_hash(skb, rxhash, rxhash_type); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1076 | |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 1077 | skb_checksum_none_assert(skb); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 1078 | |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 1079 | if (bp->dev->features & NETIF_F_RXCSUM) |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 1080 | bnx2x_csum_validate(skb, cqe, fp, |
| 1081 | bnx2x_fp_qstats(bp, fp)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1082 | |
Dmitry Kravkov | f233caf | 2011-11-13 04:34:22 +0000 | [diff] [blame] | 1083 | skb_record_rx_queue(skb, fp->rx_queue); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1084 | |
Michal Kalderon | eeed018 | 2014-08-17 16:47:44 +0300 | [diff] [blame] | 1085 | /* Check if this packet was timestamped */ |
Yuval Mintz | 56daf66 | 2014-08-28 08:07:32 +0300 | [diff] [blame] | 1086 | if (unlikely(cqe->fast_path_cqe.type_error_flags & |
Michal Kalderon | eeed018 | 2014-08-17 16:47:44 +0300 | [diff] [blame] | 1087 | (1 << ETH_FAST_PATH_RX_CQE_PTP_PKT_SHIFT))) |
| 1088 | bnx2x_set_rx_ts(bp, skb); |
| 1089 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1090 | if (le16_to_cpu(cqe_fp->pars_flags.flags) & |
| 1091 | PARSING_FLAGS_VLAN) |
Patrick McHardy | 86a9bad | 2013-04-19 02:04:30 +0000 | [diff] [blame] | 1092 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1093 | le16_to_cpu(cqe_fp->vlan_tag)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1094 | |
Eliezer Tamir | 8b80cda | 2013-07-10 17:13:26 +0300 | [diff] [blame] | 1095 | skb_mark_napi_id(skb, &fp->napi); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1096 | |
| 1097 | if (bnx2x_fp_ll_polling(fp)) |
| 1098 | netif_receive_skb(skb); |
| 1099 | else |
| 1100 | napi_gro_receive(&fp->napi, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1101 | next_rx: |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1102 | rx_buf->data = NULL; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1103 | |
| 1104 | bd_cons = NEXT_RX_IDX(bd_cons); |
| 1105 | bd_prod = NEXT_RX_IDX(bd_prod); |
| 1106 | bd_prod_fw = NEXT_RX_IDX(bd_prod_fw); |
| 1107 | rx_pkt++; |
| 1108 | next_cqe: |
| 1109 | sw_comp_prod = NEXT_RCQ_IDX(sw_comp_prod); |
| 1110 | sw_comp_cons = NEXT_RCQ_IDX(sw_comp_cons); |
| 1111 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 1112 | /* mark CQE as free */ |
| 1113 | BNX2X_SEED_CQE(cqe_fp); |
| 1114 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1115 | if (rx_pkt == budget) |
| 1116 | break; |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 1117 | |
| 1118 | comp_ring_cons = RCQ_BD(sw_comp_cons); |
| 1119 | cqe = &fp->rx_comp_ring[comp_ring_cons]; |
| 1120 | cqe_fp = &cqe->fast_path_cqe; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1121 | } /* while */ |
| 1122 | |
| 1123 | fp->rx_bd_cons = bd_cons; |
| 1124 | fp->rx_bd_prod = bd_prod_fw; |
| 1125 | fp->rx_comp_cons = sw_comp_cons; |
| 1126 | fp->rx_comp_prod = sw_comp_prod; |
| 1127 | |
| 1128 | /* Update producers */ |
| 1129 | bnx2x_update_rx_prod(bp, fp, bd_prod_fw, sw_comp_prod, |
| 1130 | fp->rx_sge_prod); |
| 1131 | |
| 1132 | fp->rx_pkt += rx_pkt; |
| 1133 | fp->rx_calls++; |
| 1134 | |
| 1135 | return rx_pkt; |
| 1136 | } |
| 1137 | |
| 1138 | static irqreturn_t bnx2x_msix_fp_int(int irq, void *fp_cookie) |
| 1139 | { |
| 1140 | struct bnx2x_fastpath *fp = fp_cookie; |
| 1141 | struct bnx2x *bp = fp->bp; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1142 | u8 cos; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1143 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1144 | DP(NETIF_MSG_INTR, |
| 1145 | "got an MSI-X interrupt on IDX:SB [fp %d fw_sd %d igusb %d]\n", |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1146 | fp->index, fp->fw_sb_id, fp->igu_sb_id); |
Yuval Mintz | ecf01c2 | 2013-04-22 02:53:03 +0000 | [diff] [blame] | 1147 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1148 | bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID, 0, IGU_INT_DISABLE, 0); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1149 | |
| 1150 | #ifdef BNX2X_STOP_ON_ERROR |
| 1151 | if (unlikely(bp->panic)) |
| 1152 | return IRQ_HANDLED; |
| 1153 | #endif |
| 1154 | |
| 1155 | /* Handle Rx and Tx according to MSI-X vector */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1156 | for_each_cos_in_tx_queue(fp, cos) |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 1157 | prefetch(fp->txdata_ptr[cos]->tx_cons_sb); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1158 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1159 | prefetch(&fp->sb_running_index[SM_RX_ID]); |
Eric Dumazet | f5fbf11 | 2014-10-29 17:07:50 -0700 | [diff] [blame] | 1160 | napi_schedule_irqoff(&bnx2x_fp(bp, fp->index, napi)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1161 | |
| 1162 | return IRQ_HANDLED; |
| 1163 | } |
| 1164 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1165 | /* HW Lock for shared dual port PHYs */ |
| 1166 | void bnx2x_acquire_phy_lock(struct bnx2x *bp) |
| 1167 | { |
| 1168 | mutex_lock(&bp->port.phy_mutex); |
| 1169 | |
Yaniv Rosner | 8203c4b | 2012-11-27 03:46:33 +0000 | [diff] [blame] | 1170 | bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_MDIO); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1171 | } |
| 1172 | |
| 1173 | void bnx2x_release_phy_lock(struct bnx2x *bp) |
| 1174 | { |
Yaniv Rosner | 8203c4b | 2012-11-27 03:46:33 +0000 | [diff] [blame] | 1175 | bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_MDIO); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1176 | |
| 1177 | mutex_unlock(&bp->port.phy_mutex); |
| 1178 | } |
| 1179 | |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1180 | /* calculates MF speed according to current linespeed and MF configuration */ |
| 1181 | u16 bnx2x_get_mf_speed(struct bnx2x *bp) |
| 1182 | { |
| 1183 | u16 line_speed = bp->link_vars.line_speed; |
| 1184 | if (IS_MF(bp)) { |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 1185 | u16 maxCfg = bnx2x_extract_max_cfg(bp, |
| 1186 | bp->mf_config[BP_VN(bp)]); |
| 1187 | |
| 1188 | /* Calculate the current MAX line speed limit for the MF |
| 1189 | * devices |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1190 | */ |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 1191 | if (IS_MF_SI(bp)) |
| 1192 | line_speed = (line_speed * maxCfg) / 100; |
| 1193 | else { /* SD mode */ |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1194 | u16 vn_max_rate = maxCfg * 100; |
| 1195 | |
| 1196 | if (vn_max_rate < line_speed) |
| 1197 | line_speed = vn_max_rate; |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 1198 | } |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1199 | } |
| 1200 | |
| 1201 | return line_speed; |
| 1202 | } |
| 1203 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1204 | /** |
| 1205 | * bnx2x_fill_report_data - fill link report data to report |
| 1206 | * |
| 1207 | * @bp: driver handle |
| 1208 | * @data: link state to update |
| 1209 | * |
| 1210 | * It uses a none-atomic bit operations because is called under the mutex. |
| 1211 | */ |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1212 | static void bnx2x_fill_report_data(struct bnx2x *bp, |
| 1213 | struct bnx2x_link_report_data *data) |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1214 | { |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1215 | memset(data, 0, sizeof(*data)); |
| 1216 | |
Dmitry Kravkov | 6495d15 | 2014-06-26 14:31:04 +0300 | [diff] [blame] | 1217 | if (IS_PF(bp)) { |
| 1218 | /* Fill the report data: effective line speed */ |
| 1219 | data->line_speed = bnx2x_get_mf_speed(bp); |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1220 | |
Dmitry Kravkov | 6495d15 | 2014-06-26 14:31:04 +0300 | [diff] [blame] | 1221 | /* Link is down */ |
| 1222 | if (!bp->link_vars.link_up || (bp->flags & MF_FUNC_DIS)) |
| 1223 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1224 | &data->link_report_flags); |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1225 | |
Dmitry Kravkov | 6495d15 | 2014-06-26 14:31:04 +0300 | [diff] [blame] | 1226 | if (!BNX2X_NUM_ETH_QUEUES(bp)) |
| 1227 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1228 | &data->link_report_flags); |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1229 | |
Dmitry Kravkov | 6495d15 | 2014-06-26 14:31:04 +0300 | [diff] [blame] | 1230 | /* Full DUPLEX */ |
| 1231 | if (bp->link_vars.duplex == DUPLEX_FULL) |
| 1232 | __set_bit(BNX2X_LINK_REPORT_FD, |
| 1233 | &data->link_report_flags); |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1234 | |
Dmitry Kravkov | 6495d15 | 2014-06-26 14:31:04 +0300 | [diff] [blame] | 1235 | /* Rx Flow Control is ON */ |
| 1236 | if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_RX) |
| 1237 | __set_bit(BNX2X_LINK_REPORT_RX_FC_ON, |
| 1238 | &data->link_report_flags); |
| 1239 | |
| 1240 | /* Tx Flow Control is ON */ |
| 1241 | if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX) |
| 1242 | __set_bit(BNX2X_LINK_REPORT_TX_FC_ON, |
| 1243 | &data->link_report_flags); |
| 1244 | } else { /* VF */ |
| 1245 | *data = bp->vf_link_vars; |
| 1246 | } |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1247 | } |
| 1248 | |
| 1249 | /** |
| 1250 | * bnx2x_link_report - report link status to OS. |
| 1251 | * |
| 1252 | * @bp: driver handle |
| 1253 | * |
| 1254 | * Calls the __bnx2x_link_report() under the same locking scheme |
| 1255 | * as a link/PHY state managing code to ensure a consistent link |
| 1256 | * reporting. |
| 1257 | */ |
| 1258 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1259 | void bnx2x_link_report(struct bnx2x *bp) |
| 1260 | { |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1261 | bnx2x_acquire_phy_lock(bp); |
| 1262 | __bnx2x_link_report(bp); |
| 1263 | bnx2x_release_phy_lock(bp); |
| 1264 | } |
| 1265 | |
| 1266 | /** |
| 1267 | * __bnx2x_link_report - report link status to OS. |
| 1268 | * |
| 1269 | * @bp: driver handle |
| 1270 | * |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 1271 | * None atomic implementation. |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1272 | * Should be called under the phy_lock. |
| 1273 | */ |
| 1274 | void __bnx2x_link_report(struct bnx2x *bp) |
| 1275 | { |
| 1276 | struct bnx2x_link_report_data cur_data; |
| 1277 | |
| 1278 | /* reread mf_cfg */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1279 | if (IS_PF(bp) && !CHIP_IS_E1(bp)) |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1280 | bnx2x_read_mf_cfg(bp); |
| 1281 | |
| 1282 | /* Read the current link report info */ |
| 1283 | bnx2x_fill_report_data(bp, &cur_data); |
| 1284 | |
| 1285 | /* Don't report link down or exactly the same link status twice */ |
| 1286 | if (!memcmp(&cur_data, &bp->last_reported_link, sizeof(cur_data)) || |
| 1287 | (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1288 | &bp->last_reported_link.link_report_flags) && |
| 1289 | test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1290 | &cur_data.link_report_flags))) |
| 1291 | return; |
| 1292 | |
| 1293 | bp->link_cnt++; |
| 1294 | |
| 1295 | /* We are going to report a new link parameters now - |
| 1296 | * remember the current data for the next time. |
| 1297 | */ |
| 1298 | memcpy(&bp->last_reported_link, &cur_data, sizeof(cur_data)); |
| 1299 | |
Dmitry Kravkov | 6495d15 | 2014-06-26 14:31:04 +0300 | [diff] [blame] | 1300 | /* propagate status to VFs */ |
| 1301 | if (IS_PF(bp)) |
| 1302 | bnx2x_iov_link_update(bp); |
| 1303 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1304 | if (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1305 | &cur_data.link_report_flags)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1306 | netif_carrier_off(bp->dev); |
| 1307 | netdev_err(bp->dev, "NIC Link is Down\n"); |
| 1308 | return; |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1309 | } else { |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1310 | const char *duplex; |
| 1311 | const char *flow; |
| 1312 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1313 | netif_carrier_on(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1314 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1315 | if (test_and_clear_bit(BNX2X_LINK_REPORT_FD, |
| 1316 | &cur_data.link_report_flags)) |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1317 | duplex = "full"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1318 | else |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1319 | duplex = "half"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1320 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1321 | /* Handle the FC at the end so that only these flags would be |
| 1322 | * possibly set. This way we may easily check if there is no FC |
| 1323 | * enabled. |
| 1324 | */ |
| 1325 | if (cur_data.link_report_flags) { |
| 1326 | if (test_bit(BNX2X_LINK_REPORT_RX_FC_ON, |
| 1327 | &cur_data.link_report_flags)) { |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1328 | if (test_bit(BNX2X_LINK_REPORT_TX_FC_ON, |
| 1329 | &cur_data.link_report_flags)) |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1330 | flow = "ON - receive & transmit"; |
| 1331 | else |
| 1332 | flow = "ON - receive"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1333 | } else { |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1334 | flow = "ON - transmit"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1335 | } |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1336 | } else { |
| 1337 | flow = "none"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1338 | } |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1339 | netdev_info(bp->dev, "NIC Link is Up, %d Mbps %s duplex, Flow control: %s\n", |
| 1340 | cur_data.line_speed, duplex, flow); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1341 | } |
| 1342 | } |
| 1343 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1344 | static void bnx2x_set_next_page_sgl(struct bnx2x_fastpath *fp) |
| 1345 | { |
| 1346 | int i; |
| 1347 | |
| 1348 | for (i = 1; i <= NUM_RX_SGE_PAGES; i++) { |
| 1349 | struct eth_rx_sge *sge; |
| 1350 | |
| 1351 | sge = &fp->rx_sge_ring[RX_SGE_CNT * i - 2]; |
| 1352 | sge->addr_hi = |
| 1353 | cpu_to_le32(U64_HI(fp->rx_sge_mapping + |
| 1354 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); |
| 1355 | |
| 1356 | sge->addr_lo = |
| 1357 | cpu_to_le32(U64_LO(fp->rx_sge_mapping + |
| 1358 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); |
| 1359 | } |
| 1360 | } |
| 1361 | |
| 1362 | static void bnx2x_free_tpa_pool(struct bnx2x *bp, |
| 1363 | struct bnx2x_fastpath *fp, int last) |
| 1364 | { |
| 1365 | int i; |
| 1366 | |
| 1367 | for (i = 0; i < last; i++) { |
| 1368 | struct bnx2x_agg_info *tpa_info = &fp->tpa_info[i]; |
| 1369 | struct sw_rx_bd *first_buf = &tpa_info->first_buf; |
| 1370 | u8 *data = first_buf->data; |
| 1371 | |
| 1372 | if (data == NULL) { |
| 1373 | DP(NETIF_MSG_IFDOWN, "tpa bin %d empty on free\n", i); |
| 1374 | continue; |
| 1375 | } |
| 1376 | if (tpa_info->tpa_state == BNX2X_TPA_START) |
| 1377 | dma_unmap_single(&bp->pdev->dev, |
| 1378 | dma_unmap_addr(first_buf, mapping), |
| 1379 | fp->rx_buf_size, DMA_FROM_DEVICE); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1380 | bnx2x_frag_free(fp, data); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1381 | first_buf->data = NULL; |
| 1382 | } |
| 1383 | } |
| 1384 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1385 | void bnx2x_init_rx_rings_cnic(struct bnx2x *bp) |
| 1386 | { |
| 1387 | int j; |
| 1388 | |
| 1389 | for_each_rx_queue_cnic(bp, j) { |
| 1390 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1391 | |
| 1392 | fp->rx_bd_cons = 0; |
| 1393 | |
| 1394 | /* Activate BD ring */ |
| 1395 | /* Warning! |
| 1396 | * this will generate an interrupt (to the TSTORM) |
| 1397 | * must only be done after chip is initialized |
| 1398 | */ |
| 1399 | bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod, |
| 1400 | fp->rx_sge_prod); |
| 1401 | } |
| 1402 | } |
| 1403 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1404 | void bnx2x_init_rx_rings(struct bnx2x *bp) |
| 1405 | { |
| 1406 | int func = BP_FUNC(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1407 | u16 ring_prod; |
| 1408 | int i, j; |
| 1409 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1410 | /* Allocate TPA resources */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1411 | for_each_eth_queue(bp, j) { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1412 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1413 | |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1414 | DP(NETIF_MSG_IFUP, |
| 1415 | "mtu %d rx_buf_size %d\n", bp->dev->mtu, fp->rx_buf_size); |
| 1416 | |
Michal Schmidt | 7e6b4d4 | 2015-04-28 11:34:22 +0200 | [diff] [blame] | 1417 | if (fp->mode != TPA_MODE_DISABLED) { |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 1418 | /* Fill the per-aggregation pool */ |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 1419 | for (i = 0; i < MAX_AGG_QS(bp); i++) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1420 | struct bnx2x_agg_info *tpa_info = |
| 1421 | &fp->tpa_info[i]; |
| 1422 | struct sw_rx_bd *first_buf = |
| 1423 | &tpa_info->first_buf; |
| 1424 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 1425 | first_buf->data = |
| 1426 | bnx2x_frag_alloc(fp, GFP_KERNEL); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1427 | if (!first_buf->data) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1428 | BNX2X_ERR("Failed to allocate TPA skb pool for queue[%d] - disabling TPA on this queue!\n", |
| 1429 | j); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1430 | bnx2x_free_tpa_pool(bp, fp, i); |
Michal Schmidt | 7e6b4d4 | 2015-04-28 11:34:22 +0200 | [diff] [blame] | 1431 | fp->mode = TPA_MODE_DISABLED; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1432 | break; |
| 1433 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1434 | dma_unmap_addr_set(first_buf, mapping, 0); |
| 1435 | tpa_info->tpa_state = BNX2X_TPA_STOP; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1436 | } |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1437 | |
| 1438 | /* "next page" elements initialization */ |
| 1439 | bnx2x_set_next_page_sgl(fp); |
| 1440 | |
| 1441 | /* set SGEs bit mask */ |
| 1442 | bnx2x_init_sge_ring_bit_mask(fp); |
| 1443 | |
| 1444 | /* Allocate SGEs and initialize the ring elements */ |
| 1445 | for (i = 0, ring_prod = 0; |
| 1446 | i < MAX_RX_SGE_CNT*NUM_RX_SGE_PAGES; i++) { |
| 1447 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 1448 | if (bnx2x_alloc_rx_sge(bp, fp, ring_prod, |
| 1449 | GFP_KERNEL) < 0) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1450 | BNX2X_ERR("was only able to allocate %d rx sges\n", |
| 1451 | i); |
| 1452 | BNX2X_ERR("disabling TPA for queue[%d]\n", |
| 1453 | j); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1454 | /* Cleanup already allocated elements */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1455 | bnx2x_free_rx_sge_range(bp, fp, |
| 1456 | ring_prod); |
| 1457 | bnx2x_free_tpa_pool(bp, fp, |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 1458 | MAX_AGG_QS(bp)); |
Michal Schmidt | 7e6b4d4 | 2015-04-28 11:34:22 +0200 | [diff] [blame] | 1459 | fp->mode = TPA_MODE_DISABLED; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1460 | ring_prod = 0; |
| 1461 | break; |
| 1462 | } |
| 1463 | ring_prod = NEXT_SGE_IDX(ring_prod); |
| 1464 | } |
| 1465 | |
| 1466 | fp->rx_sge_prod = ring_prod; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1467 | } |
| 1468 | } |
| 1469 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1470 | for_each_eth_queue(bp, j) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1471 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1472 | |
| 1473 | fp->rx_bd_cons = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1474 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1475 | /* Activate BD ring */ |
| 1476 | /* Warning! |
| 1477 | * this will generate an interrupt (to the TSTORM) |
| 1478 | * must only be done after chip is initialized |
| 1479 | */ |
| 1480 | bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod, |
| 1481 | fp->rx_sge_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1482 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1483 | if (j != 0) |
| 1484 | continue; |
| 1485 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1486 | if (CHIP_IS_E1(bp)) { |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 1487 | REG_WR(bp, BAR_USTRORM_INTMEM + |
| 1488 | USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func), |
| 1489 | U64_LO(fp->rx_comp_mapping)); |
| 1490 | REG_WR(bp, BAR_USTRORM_INTMEM + |
| 1491 | USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func) + 4, |
| 1492 | U64_HI(fp->rx_comp_mapping)); |
| 1493 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1494 | } |
| 1495 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 1496 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1497 | static void bnx2x_free_tx_skbs_queue(struct bnx2x_fastpath *fp) |
| 1498 | { |
| 1499 | u8 cos; |
| 1500 | struct bnx2x *bp = fp->bp; |
| 1501 | |
| 1502 | for_each_cos_in_tx_queue(fp, cos) { |
| 1503 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
| 1504 | unsigned pkts_compl = 0, bytes_compl = 0; |
| 1505 | |
| 1506 | u16 sw_prod = txdata->tx_pkt_prod; |
| 1507 | u16 sw_cons = txdata->tx_pkt_cons; |
| 1508 | |
| 1509 | while (sw_cons != sw_prod) { |
| 1510 | bnx2x_free_tx_pkt(bp, txdata, TX_BD(sw_cons), |
| 1511 | &pkts_compl, &bytes_compl); |
| 1512 | sw_cons++; |
| 1513 | } |
| 1514 | |
| 1515 | netdev_tx_reset_queue( |
| 1516 | netdev_get_tx_queue(bp->dev, |
| 1517 | txdata->txq_index)); |
| 1518 | } |
| 1519 | } |
| 1520 | |
| 1521 | static void bnx2x_free_tx_skbs_cnic(struct bnx2x *bp) |
| 1522 | { |
| 1523 | int i; |
| 1524 | |
| 1525 | for_each_tx_queue_cnic(bp, i) { |
| 1526 | bnx2x_free_tx_skbs_queue(&bp->fp[i]); |
| 1527 | } |
| 1528 | } |
| 1529 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1530 | static void bnx2x_free_tx_skbs(struct bnx2x *bp) |
| 1531 | { |
| 1532 | int i; |
| 1533 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1534 | for_each_eth_queue(bp, i) { |
| 1535 | bnx2x_free_tx_skbs_queue(&bp->fp[i]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1536 | } |
| 1537 | } |
| 1538 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1539 | static void bnx2x_free_rx_bds(struct bnx2x_fastpath *fp) |
| 1540 | { |
| 1541 | struct bnx2x *bp = fp->bp; |
| 1542 | int i; |
| 1543 | |
| 1544 | /* ring wasn't allocated */ |
| 1545 | if (fp->rx_buf_ring == NULL) |
| 1546 | return; |
| 1547 | |
| 1548 | for (i = 0; i < NUM_RX_BD; i++) { |
| 1549 | struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[i]; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1550 | u8 *data = rx_buf->data; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1551 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1552 | if (data == NULL) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1553 | continue; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1554 | dma_unmap_single(&bp->pdev->dev, |
| 1555 | dma_unmap_addr(rx_buf, mapping), |
| 1556 | fp->rx_buf_size, DMA_FROM_DEVICE); |
| 1557 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1558 | rx_buf->data = NULL; |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1559 | bnx2x_frag_free(fp, data); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1560 | } |
| 1561 | } |
| 1562 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1563 | static void bnx2x_free_rx_skbs_cnic(struct bnx2x *bp) |
| 1564 | { |
| 1565 | int j; |
| 1566 | |
| 1567 | for_each_rx_queue_cnic(bp, j) { |
| 1568 | bnx2x_free_rx_bds(&bp->fp[j]); |
| 1569 | } |
| 1570 | } |
| 1571 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1572 | static void bnx2x_free_rx_skbs(struct bnx2x *bp) |
| 1573 | { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1574 | int j; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1575 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1576 | for_each_eth_queue(bp, j) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1577 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1578 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1579 | bnx2x_free_rx_bds(fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1580 | |
Michal Schmidt | 7e6b4d4 | 2015-04-28 11:34:22 +0200 | [diff] [blame] | 1581 | if (fp->mode != TPA_MODE_DISABLED) |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 1582 | bnx2x_free_tpa_pool(bp, fp, MAX_AGG_QS(bp)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1583 | } |
| 1584 | } |
| 1585 | |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 1586 | static void bnx2x_free_skbs_cnic(struct bnx2x *bp) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1587 | { |
| 1588 | bnx2x_free_tx_skbs_cnic(bp); |
| 1589 | bnx2x_free_rx_skbs_cnic(bp); |
| 1590 | } |
| 1591 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1592 | void bnx2x_free_skbs(struct bnx2x *bp) |
| 1593 | { |
| 1594 | bnx2x_free_tx_skbs(bp); |
| 1595 | bnx2x_free_rx_skbs(bp); |
| 1596 | } |
| 1597 | |
Dmitry Kravkov | e3835b9 | 2011-03-06 10:50:44 +0000 | [diff] [blame] | 1598 | void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value) |
| 1599 | { |
| 1600 | /* load old values */ |
| 1601 | u32 mf_cfg = bp->mf_config[BP_VN(bp)]; |
| 1602 | |
| 1603 | if (value != bnx2x_extract_max_cfg(bp, mf_cfg)) { |
| 1604 | /* leave all but MAX value */ |
| 1605 | mf_cfg &= ~FUNC_MF_CFG_MAX_BW_MASK; |
| 1606 | |
| 1607 | /* set new MAX value */ |
| 1608 | mf_cfg |= (value << FUNC_MF_CFG_MAX_BW_SHIFT) |
| 1609 | & FUNC_MF_CFG_MAX_BW_MASK; |
| 1610 | |
| 1611 | bnx2x_fw_command(bp, DRV_MSG_CODE_SET_MF_BW, mf_cfg); |
| 1612 | } |
| 1613 | } |
| 1614 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1615 | /** |
| 1616 | * bnx2x_free_msix_irqs - free previously requested MSI-X IRQ vectors |
| 1617 | * |
| 1618 | * @bp: driver handle |
| 1619 | * @nvecs: number of vectors to be released |
| 1620 | */ |
| 1621 | static void bnx2x_free_msix_irqs(struct bnx2x *bp, int nvecs) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1622 | { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1623 | int i, offset = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1624 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1625 | if (nvecs == offset) |
| 1626 | return; |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1627 | |
| 1628 | /* VFs don't have a default SB */ |
| 1629 | if (IS_PF(bp)) { |
| 1630 | free_irq(bp->msix_table[offset].vector, bp->dev); |
| 1631 | DP(NETIF_MSG_IFDOWN, "released sp irq (%d)\n", |
| 1632 | bp->msix_table[offset].vector); |
| 1633 | offset++; |
| 1634 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1635 | |
| 1636 | if (CNIC_SUPPORT(bp)) { |
| 1637 | if (nvecs == offset) |
| 1638 | return; |
| 1639 | offset++; |
| 1640 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1641 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1642 | for_each_eth_queue(bp, i) { |
| 1643 | if (nvecs == offset) |
| 1644 | return; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1645 | DP(NETIF_MSG_IFDOWN, "about to release fp #%d->%d irq\n", |
| 1646 | i, bp->msix_table[offset].vector); |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1647 | |
| 1648 | free_irq(bp->msix_table[offset++].vector, &bp->fp[i]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1649 | } |
| 1650 | } |
| 1651 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1652 | void bnx2x_free_irq(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1653 | { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1654 | if (bp->flags & USING_MSIX_FLAG && |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1655 | !(bp->flags & USING_SINGLE_MSIX_FLAG)) { |
| 1656 | int nvecs = BNX2X_NUM_ETH_QUEUES(bp) + CNIC_SUPPORT(bp); |
| 1657 | |
| 1658 | /* vfs don't have a default status block */ |
| 1659 | if (IS_PF(bp)) |
| 1660 | nvecs++; |
| 1661 | |
| 1662 | bnx2x_free_msix_irqs(bp, nvecs); |
| 1663 | } else { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1664 | free_irq(bp->dev->irq, bp->dev); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1665 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1666 | } |
| 1667 | |
Merav Sicron | 0e8d2ec | 2012-06-19 07:48:30 +0000 | [diff] [blame] | 1668 | int bnx2x_enable_msix(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1669 | { |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1670 | int msix_vec = 0, i, rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1671 | |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1672 | /* VFs don't have a default status block */ |
| 1673 | if (IS_PF(bp)) { |
| 1674 | bp->msix_table[msix_vec].entry = msix_vec; |
| 1675 | BNX2X_DEV_INFO("msix_table[0].entry = %d (slowpath)\n", |
| 1676 | bp->msix_table[0].entry); |
| 1677 | msix_vec++; |
| 1678 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1679 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1680 | /* Cnic requires an msix vector for itself */ |
| 1681 | if (CNIC_SUPPORT(bp)) { |
| 1682 | bp->msix_table[msix_vec].entry = msix_vec; |
| 1683 | BNX2X_DEV_INFO("msix_table[%d].entry = %d (CNIC)\n", |
| 1684 | msix_vec, bp->msix_table[msix_vec].entry); |
| 1685 | msix_vec++; |
| 1686 | } |
| 1687 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1688 | /* We need separate vectors for ETH queues only (not FCoE) */ |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1689 | for_each_eth_queue(bp, i) { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1690 | bp->msix_table[msix_vec].entry = msix_vec; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1691 | BNX2X_DEV_INFO("msix_table[%d].entry = %d (fastpath #%u)\n", |
| 1692 | msix_vec, msix_vec, i); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1693 | msix_vec++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1694 | } |
| 1695 | |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1696 | DP(BNX2X_MSG_SP, "about to request enable msix with %d vectors\n", |
| 1697 | msix_vec); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1698 | |
Alexander Gordeev | a5444b1 | 2014-02-18 11:07:54 +0100 | [diff] [blame] | 1699 | rc = pci_enable_msix_range(bp->pdev, &bp->msix_table[0], |
| 1700 | BNX2X_MIN_MSIX_VEC_CNT(bp), msix_vec); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1701 | /* |
| 1702 | * reconfigure number of tx/rx queues according to available |
| 1703 | * MSI-X vectors |
| 1704 | */ |
Alexander Gordeev | a5444b1 | 2014-02-18 11:07:54 +0100 | [diff] [blame] | 1705 | if (rc == -ENOSPC) { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1706 | /* Get by with single vector */ |
Alexander Gordeev | a5444b1 | 2014-02-18 11:07:54 +0100 | [diff] [blame] | 1707 | rc = pci_enable_msix_range(bp->pdev, &bp->msix_table[0], 1, 1); |
| 1708 | if (rc < 0) { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1709 | BNX2X_DEV_INFO("Single MSI-X is not attainable rc %d\n", |
| 1710 | rc); |
| 1711 | goto no_msix; |
| 1712 | } |
| 1713 | |
| 1714 | BNX2X_DEV_INFO("Using single MSI-X vector\n"); |
| 1715 | bp->flags |= USING_SINGLE_MSIX_FLAG; |
| 1716 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1717 | BNX2X_DEV_INFO("set number of queues to 1\n"); |
| 1718 | bp->num_ethernet_queues = 1; |
| 1719 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1720 | } else if (rc < 0) { |
Alexander Gordeev | a5444b1 | 2014-02-18 11:07:54 +0100 | [diff] [blame] | 1721 | BNX2X_DEV_INFO("MSI-X is not attainable rc %d\n", rc); |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1722 | goto no_msix; |
Alexander Gordeev | a5444b1 | 2014-02-18 11:07:54 +0100 | [diff] [blame] | 1723 | } else if (rc < msix_vec) { |
| 1724 | /* how less vectors we will have? */ |
| 1725 | int diff = msix_vec - rc; |
| 1726 | |
| 1727 | BNX2X_DEV_INFO("Trying to use less MSI-X vectors: %d\n", rc); |
| 1728 | |
| 1729 | /* |
| 1730 | * decrease number of queues by number of unallocated entries |
| 1731 | */ |
| 1732 | bp->num_ethernet_queues -= diff; |
| 1733 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; |
| 1734 | |
| 1735 | BNX2X_DEV_INFO("New queue configuration set: %d\n", |
| 1736 | bp->num_queues); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1737 | } |
| 1738 | |
| 1739 | bp->flags |= USING_MSIX_FLAG; |
| 1740 | |
| 1741 | return 0; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1742 | |
| 1743 | no_msix: |
| 1744 | /* fall to INTx if not enough memory */ |
| 1745 | if (rc == -ENOMEM) |
| 1746 | bp->flags |= DISABLE_MSI_FLAG; |
| 1747 | |
| 1748 | return rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1749 | } |
| 1750 | |
| 1751 | static int bnx2x_req_msix_irqs(struct bnx2x *bp) |
| 1752 | { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1753 | int i, rc, offset = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1754 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1755 | /* no default status block for vf */ |
| 1756 | if (IS_PF(bp)) { |
| 1757 | rc = request_irq(bp->msix_table[offset++].vector, |
| 1758 | bnx2x_msix_sp_int, 0, |
| 1759 | bp->dev->name, bp->dev); |
| 1760 | if (rc) { |
| 1761 | BNX2X_ERR("request sp irq failed\n"); |
| 1762 | return -EBUSY; |
| 1763 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1764 | } |
| 1765 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1766 | if (CNIC_SUPPORT(bp)) |
| 1767 | offset++; |
| 1768 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1769 | for_each_eth_queue(bp, i) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1770 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
| 1771 | snprintf(fp->name, sizeof(fp->name), "%s-fp-%d", |
| 1772 | bp->dev->name, i); |
| 1773 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1774 | rc = request_irq(bp->msix_table[offset].vector, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1775 | bnx2x_msix_fp_int, 0, fp->name, fp); |
| 1776 | if (rc) { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1777 | BNX2X_ERR("request fp #%d irq (%d) failed rc %d\n", i, |
| 1778 | bp->msix_table[offset].vector, rc); |
| 1779 | bnx2x_free_msix_irqs(bp, offset); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1780 | return -EBUSY; |
| 1781 | } |
| 1782 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1783 | offset++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1784 | } |
| 1785 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1786 | i = BNX2X_NUM_ETH_QUEUES(bp); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1787 | if (IS_PF(bp)) { |
| 1788 | offset = 1 + CNIC_SUPPORT(bp); |
| 1789 | netdev_info(bp->dev, |
| 1790 | "using MSI-X IRQs: sp %d fp[%d] %d ... fp[%d] %d\n", |
| 1791 | bp->msix_table[0].vector, |
| 1792 | 0, bp->msix_table[offset].vector, |
| 1793 | i - 1, bp->msix_table[offset + i - 1].vector); |
| 1794 | } else { |
| 1795 | offset = CNIC_SUPPORT(bp); |
| 1796 | netdev_info(bp->dev, |
| 1797 | "using MSI-X IRQs: fp[%d] %d ... fp[%d] %d\n", |
| 1798 | 0, bp->msix_table[offset].vector, |
| 1799 | i - 1, bp->msix_table[offset + i - 1].vector); |
| 1800 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1801 | return 0; |
| 1802 | } |
| 1803 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1804 | int bnx2x_enable_msi(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1805 | { |
| 1806 | int rc; |
| 1807 | |
| 1808 | rc = pci_enable_msi(bp->pdev); |
| 1809 | if (rc) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1810 | BNX2X_DEV_INFO("MSI is not attainable\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1811 | return -1; |
| 1812 | } |
| 1813 | bp->flags |= USING_MSI_FLAG; |
| 1814 | |
| 1815 | return 0; |
| 1816 | } |
| 1817 | |
| 1818 | static int bnx2x_req_irq(struct bnx2x *bp) |
| 1819 | { |
| 1820 | unsigned long flags; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1821 | unsigned int irq; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1822 | |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1823 | if (bp->flags & (USING_MSI_FLAG | USING_MSIX_FLAG)) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1824 | flags = 0; |
| 1825 | else |
| 1826 | flags = IRQF_SHARED; |
| 1827 | |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1828 | if (bp->flags & USING_MSIX_FLAG) |
| 1829 | irq = bp->msix_table[0].vector; |
| 1830 | else |
| 1831 | irq = bp->pdev->irq; |
| 1832 | |
| 1833 | return request_irq(irq, bnx2x_interrupt, flags, bp->dev->name, bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1834 | } |
| 1835 | |
Yuval Mintz | c957d09 | 2013-06-25 08:50:11 +0300 | [diff] [blame] | 1836 | static int bnx2x_setup_irqs(struct bnx2x *bp) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1837 | { |
| 1838 | int rc = 0; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1839 | if (bp->flags & USING_MSIX_FLAG && |
| 1840 | !(bp->flags & USING_SINGLE_MSIX_FLAG)) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1841 | rc = bnx2x_req_msix_irqs(bp); |
| 1842 | if (rc) |
| 1843 | return rc; |
| 1844 | } else { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1845 | rc = bnx2x_req_irq(bp); |
| 1846 | if (rc) { |
| 1847 | BNX2X_ERR("IRQ request failed rc %d, aborting\n", rc); |
| 1848 | return rc; |
| 1849 | } |
| 1850 | if (bp->flags & USING_MSI_FLAG) { |
| 1851 | bp->dev->irq = bp->pdev->irq; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1852 | netdev_info(bp->dev, "using MSI IRQ %d\n", |
| 1853 | bp->dev->irq); |
| 1854 | } |
| 1855 | if (bp->flags & USING_MSIX_FLAG) { |
| 1856 | bp->dev->irq = bp->msix_table[0].vector; |
| 1857 | netdev_info(bp->dev, "using MSIX IRQ %d\n", |
| 1858 | bp->dev->irq); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1859 | } |
| 1860 | } |
| 1861 | |
| 1862 | return 0; |
| 1863 | } |
| 1864 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1865 | static void bnx2x_napi_enable_cnic(struct bnx2x *bp) |
| 1866 | { |
| 1867 | int i; |
| 1868 | |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1869 | for_each_rx_queue_cnic(bp, i) { |
Eric Dumazet | 074975d | 2015-04-14 18:45:00 -0700 | [diff] [blame] | 1870 | bnx2x_fp_busy_poll_init(&bp->fp[i]); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1871 | napi_enable(&bnx2x_fp(bp, i, napi)); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1872 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1873 | } |
| 1874 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1875 | static void bnx2x_napi_enable(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1876 | { |
| 1877 | int i; |
| 1878 | |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1879 | for_each_eth_queue(bp, i) { |
Eric Dumazet | 074975d | 2015-04-14 18:45:00 -0700 | [diff] [blame] | 1880 | bnx2x_fp_busy_poll_init(&bp->fp[i]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1881 | napi_enable(&bnx2x_fp(bp, i, napi)); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1882 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1883 | } |
| 1884 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1885 | static void bnx2x_napi_disable_cnic(struct bnx2x *bp) |
| 1886 | { |
| 1887 | int i; |
| 1888 | |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1889 | for_each_rx_queue_cnic(bp, i) { |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1890 | napi_disable(&bnx2x_fp(bp, i, napi)); |
Yuval Mintz | 9a2620c | 2014-01-07 12:07:41 +0200 | [diff] [blame] | 1891 | while (!bnx2x_fp_ll_disable(&bp->fp[i])) |
| 1892 | usleep_range(1000, 2000); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1893 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1894 | } |
| 1895 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1896 | static void bnx2x_napi_disable(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1897 | { |
| 1898 | int i; |
| 1899 | |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1900 | for_each_eth_queue(bp, i) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1901 | napi_disable(&bnx2x_fp(bp, i, napi)); |
Yuval Mintz | 9a2620c | 2014-01-07 12:07:41 +0200 | [diff] [blame] | 1902 | while (!bnx2x_fp_ll_disable(&bp->fp[i])) |
| 1903 | usleep_range(1000, 2000); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1904 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1905 | } |
| 1906 | |
| 1907 | void bnx2x_netif_start(struct bnx2x *bp) |
| 1908 | { |
Dmitry Kravkov | 4b7ed89 | 2011-06-14 01:32:53 +0000 | [diff] [blame] | 1909 | if (netif_running(bp->dev)) { |
| 1910 | bnx2x_napi_enable(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1911 | if (CNIC_LOADED(bp)) |
| 1912 | bnx2x_napi_enable_cnic(bp); |
Dmitry Kravkov | 4b7ed89 | 2011-06-14 01:32:53 +0000 | [diff] [blame] | 1913 | bnx2x_int_enable(bp); |
| 1914 | if (bp->state == BNX2X_STATE_OPEN) |
| 1915 | netif_tx_wake_all_queues(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1916 | } |
| 1917 | } |
| 1918 | |
| 1919 | void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw) |
| 1920 | { |
| 1921 | bnx2x_int_disable_sync(bp, disable_hw); |
| 1922 | bnx2x_napi_disable(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1923 | if (CNIC_LOADED(bp)) |
| 1924 | bnx2x_napi_disable_cnic(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1925 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1926 | |
Jason Wang | f663dd9 | 2014-01-10 16:18:26 +0800 | [diff] [blame] | 1927 | u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb, |
Daniel Borkmann | 99932d4 | 2014-02-16 15:55:20 +0100 | [diff] [blame] | 1928 | void *accel_priv, select_queue_fallback_t fallback) |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1929 | { |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1930 | struct bnx2x *bp = netdev_priv(dev); |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1931 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1932 | if (CNIC_LOADED(bp) && !NO_FCOE(bp)) { |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1933 | struct ethhdr *hdr = (struct ethhdr *)skb->data; |
| 1934 | u16 ether_type = ntohs(hdr->h_proto); |
| 1935 | |
| 1936 | /* Skip VLAN tag if present */ |
| 1937 | if (ether_type == ETH_P_8021Q) { |
| 1938 | struct vlan_ethhdr *vhdr = |
| 1939 | (struct vlan_ethhdr *)skb->data; |
| 1940 | |
| 1941 | ether_type = ntohs(vhdr->h_vlan_encapsulated_proto); |
| 1942 | } |
| 1943 | |
| 1944 | /* If ethertype is FCoE or FIP - use FCoE ring */ |
| 1945 | if ((ether_type == ETH_P_FCOE) || (ether_type == ETH_P_FIP)) |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1946 | return bnx2x_fcoe_tx(bp, txq_index); |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1947 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1948 | |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1949 | /* select a non-FCoE queue */ |
Daniel Borkmann | 99932d4 | 2014-02-16 15:55:20 +0100 | [diff] [blame] | 1950 | return fallback(dev, skb) % BNX2X_NUM_ETH_QUEUES(bp); |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1951 | } |
| 1952 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1953 | void bnx2x_set_num_queues(struct bnx2x *bp) |
| 1954 | { |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1955 | /* RSS queues */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1956 | bp->num_ethernet_queues = bnx2x_calc_num_queues(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1957 | |
Barak Witkowski | a334872 | 2012-04-23 03:04:46 +0000 | [diff] [blame] | 1958 | /* override in STORAGE SD modes */ |
Dmitry Kravkov | 2e98ffc | 2014-09-17 16:24:36 +0300 | [diff] [blame] | 1959 | if (IS_MF_STORAGE_ONLY(bp)) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1960 | bp->num_ethernet_queues = 1; |
| 1961 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1962 | /* Add special queues */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1963 | bp->num_cnic_queues = CNIC_SUPPORT(bp); /* For FCOE */ |
| 1964 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 1965 | |
| 1966 | BNX2X_DEV_INFO("set number of queues to %d\n", bp->num_queues); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1967 | } |
| 1968 | |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1969 | /** |
| 1970 | * bnx2x_set_real_num_queues - configure netdev->real_num_[tx,rx]_queues |
| 1971 | * |
| 1972 | * @bp: Driver handle |
| 1973 | * |
| 1974 | * We currently support for at most 16 Tx queues for each CoS thus we will |
| 1975 | * allocate a multiple of 16 for ETH L2 rings according to the value of the |
| 1976 | * bp->max_cos. |
| 1977 | * |
| 1978 | * If there is an FCoE L2 queue the appropriate Tx queue will have the next |
| 1979 | * index after all ETH L2 indices. |
| 1980 | * |
| 1981 | * If the actual number of Tx queues (for each CoS) is less than 16 then there |
| 1982 | * will be the holes at the end of each group of 16 ETh L2 indices (0..15, |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 1983 | * 16..31,...) with indices that are not coupled with any real Tx queue. |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1984 | * |
| 1985 | * The proper configuration of skb->queue_mapping is handled by |
| 1986 | * bnx2x_select_queue() and __skb_tx_hash(). |
| 1987 | * |
| 1988 | * bnx2x_setup_tc() takes care of the proper TC mappings so that __skb_tx_hash() |
| 1989 | * will return a proper Tx index if TC is enabled (netdev->num_tc > 0). |
| 1990 | */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1991 | static int bnx2x_set_real_num_queues(struct bnx2x *bp, int include_cnic) |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1992 | { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1993 | int rc, tx, rx; |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1994 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 1995 | tx = BNX2X_NUM_ETH_QUEUES(bp) * bp->max_cos; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1996 | rx = BNX2X_NUM_ETH_QUEUES(bp); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1997 | |
| 1998 | /* account for fcoe queue */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1999 | if (include_cnic && !NO_FCOE(bp)) { |
| 2000 | rx++; |
| 2001 | tx++; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2002 | } |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2003 | |
| 2004 | rc = netif_set_real_num_tx_queues(bp->dev, tx); |
| 2005 | if (rc) { |
| 2006 | BNX2X_ERR("Failed to set real number of Tx queues: %d\n", rc); |
| 2007 | return rc; |
| 2008 | } |
| 2009 | rc = netif_set_real_num_rx_queues(bp->dev, rx); |
| 2010 | if (rc) { |
| 2011 | BNX2X_ERR("Failed to set real number of Rx queues: %d\n", rc); |
| 2012 | return rc; |
| 2013 | } |
| 2014 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2015 | DP(NETIF_MSG_IFUP, "Setting real num queues to (tx, rx) (%d, %d)\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2016 | tx, rx); |
| 2017 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 2018 | return rc; |
| 2019 | } |
| 2020 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2021 | static void bnx2x_set_rx_buf_size(struct bnx2x *bp) |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 2022 | { |
| 2023 | int i; |
| 2024 | |
| 2025 | for_each_queue(bp, i) { |
| 2026 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 2027 | u32 mtu; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 2028 | |
| 2029 | /* Always use a mini-jumbo MTU for the FCoE L2 ring */ |
| 2030 | if (IS_FCOE_IDX(i)) |
| 2031 | /* |
| 2032 | * Although there are no IP frames expected to arrive to |
| 2033 | * this ring we still want to add an |
| 2034 | * IP_HEADER_ALIGNMENT_PADDING to prevent a buffer |
| 2035 | * overrun attack. |
| 2036 | */ |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 2037 | mtu = BNX2X_FCOE_MINI_JUMBO_MTU; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 2038 | else |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 2039 | mtu = bp->dev->mtu; |
| 2040 | fp->rx_buf_size = BNX2X_FW_RX_ALIGN_START + |
| 2041 | IP_HEADER_ALIGNMENT_PADDING + |
| 2042 | ETH_OVREHEAD + |
| 2043 | mtu + |
| 2044 | BNX2X_FW_RX_ALIGN_END; |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2045 | /* Note : rx_buf_size doesn't take into account NET_SKB_PAD */ |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 2046 | if (fp->rx_buf_size + NET_SKB_PAD <= PAGE_SIZE) |
| 2047 | fp->rx_frag_size = fp->rx_buf_size + NET_SKB_PAD; |
| 2048 | else |
| 2049 | fp->rx_frag_size = 0; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 2050 | } |
| 2051 | } |
| 2052 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2053 | static int bnx2x_init_rss(struct bnx2x *bp) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2054 | { |
| 2055 | int i; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2056 | u8 num_eth_queues = BNX2X_NUM_ETH_QUEUES(bp); |
| 2057 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2058 | /* Prepare the initial contents for the indirection table if RSS is |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2059 | * enabled |
| 2060 | */ |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 2061 | for (i = 0; i < sizeof(bp->rss_conf_obj.ind_table); i++) |
| 2062 | bp->rss_conf_obj.ind_table[i] = |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 2063 | bp->fp->cl_id + |
| 2064 | ethtool_rxfh_indir_default(i, num_eth_queues); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2065 | |
| 2066 | /* |
| 2067 | * For 57710 and 57711 SEARCHER configuration (rss_keys) is |
| 2068 | * per-port, so if explicit configuration is needed , do it only |
| 2069 | * for a PMF. |
| 2070 | * |
| 2071 | * For 57712 and newer on the other hand it's a per-function |
| 2072 | * configuration. |
| 2073 | */ |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 2074 | return bnx2x_config_rss_eth(bp, bp->port.pmf || !CHIP_IS_E1x(bp)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2075 | } |
| 2076 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2077 | int bnx2x_rss(struct bnx2x *bp, struct bnx2x_rss_config_obj *rss_obj, |
| 2078 | bool config_hash, bool enable) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2079 | { |
Yuval Mintz | 3b60306 | 2012-03-18 10:33:39 +0000 | [diff] [blame] | 2080 | struct bnx2x_config_rss_params params = {NULL}; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2081 | |
| 2082 | /* Although RSS is meaningless when there is a single HW queue we |
| 2083 | * still need it enabled in order to have HW Rx hash generated. |
| 2084 | * |
| 2085 | * if (!is_eth_multi(bp)) |
| 2086 | * bp->multi_mode = ETH_RSS_MODE_DISABLED; |
| 2087 | */ |
| 2088 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 2089 | params.rss_obj = rss_obj; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2090 | |
| 2091 | __set_bit(RAMROD_COMP_WAIT, ¶ms.ramrod_flags); |
| 2092 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2093 | if (enable) { |
| 2094 | __set_bit(BNX2X_RSS_MODE_REGULAR, ¶ms.rss_flags); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2095 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2096 | /* RSS configuration */ |
| 2097 | __set_bit(BNX2X_RSS_IPV4, ¶ms.rss_flags); |
| 2098 | __set_bit(BNX2X_RSS_IPV4_TCP, ¶ms.rss_flags); |
| 2099 | __set_bit(BNX2X_RSS_IPV6, ¶ms.rss_flags); |
| 2100 | __set_bit(BNX2X_RSS_IPV6_TCP, ¶ms.rss_flags); |
| 2101 | if (rss_obj->udp_rss_v4) |
| 2102 | __set_bit(BNX2X_RSS_IPV4_UDP, ¶ms.rss_flags); |
| 2103 | if (rss_obj->udp_rss_v6) |
| 2104 | __set_bit(BNX2X_RSS_IPV6_UDP, ¶ms.rss_flags); |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 2105 | |
| 2106 | if (!CHIP_IS_E1x(bp)) |
| 2107 | /* valid only for TUNN_MODE_GRE tunnel mode */ |
| 2108 | __set_bit(BNX2X_RSS_GRE_INNER_HDRS, ¶ms.rss_flags); |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2109 | } else { |
| 2110 | __set_bit(BNX2X_RSS_MODE_DISABLED, ¶ms.rss_flags); |
| 2111 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2112 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 2113 | /* Hash bits */ |
| 2114 | params.rss_result_mask = MULTI_MASK; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2115 | |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 2116 | memcpy(params.ind_table, rss_obj->ind_table, sizeof(params.ind_table)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2117 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 2118 | if (config_hash) { |
| 2119 | /* RSS keys */ |
Eric Dumazet | e3ec69c | 2014-11-16 06:23:07 -0800 | [diff] [blame] | 2120 | netdev_rss_key_fill(params.rss_key, T_ETH_RSS_KEY * 4); |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 2121 | __set_bit(BNX2X_RSS_SET_SRCH, ¶ms.rss_flags); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2122 | } |
| 2123 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2124 | if (IS_PF(bp)) |
| 2125 | return bnx2x_config_rss(bp, ¶ms); |
| 2126 | else |
| 2127 | return bnx2x_vfpf_config_rss(bp, ¶ms); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2128 | } |
| 2129 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2130 | static int bnx2x_init_hw(struct bnx2x *bp, u32 load_code) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2131 | { |
Yuval Mintz | 3b60306 | 2012-03-18 10:33:39 +0000 | [diff] [blame] | 2132 | struct bnx2x_func_state_params func_params = {NULL}; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2133 | |
| 2134 | /* Prepare parameters for function state transitions */ |
| 2135 | __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags); |
| 2136 | |
| 2137 | func_params.f_obj = &bp->func_obj; |
| 2138 | func_params.cmd = BNX2X_F_CMD_HW_INIT; |
| 2139 | |
| 2140 | func_params.params.hw_init.load_phase = load_code; |
| 2141 | |
| 2142 | return bnx2x_func_state_change(bp, &func_params); |
| 2143 | } |
| 2144 | |
| 2145 | /* |
| 2146 | * Cleans the object that have internal lists without sending |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2147 | * ramrods. Should be run when interrupts are disabled. |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2148 | */ |
Yuval Mintz | 7fa6f340 | 2013-03-20 05:21:28 +0000 | [diff] [blame] | 2149 | void bnx2x_squeeze_objects(struct bnx2x *bp) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2150 | { |
| 2151 | int rc; |
| 2152 | unsigned long ramrod_flags = 0, vlan_mac_flags = 0; |
Yuval Mintz | 3b60306 | 2012-03-18 10:33:39 +0000 | [diff] [blame] | 2153 | struct bnx2x_mcast_ramrod_params rparam = {NULL}; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2154 | struct bnx2x_vlan_mac_obj *mac_obj = &bp->sp_objs->mac_obj; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2155 | |
| 2156 | /***************** Cleanup MACs' object first *************************/ |
| 2157 | |
| 2158 | /* Wait for completion of requested */ |
| 2159 | __set_bit(RAMROD_COMP_WAIT, &ramrod_flags); |
| 2160 | /* Perform a dry cleanup */ |
| 2161 | __set_bit(RAMROD_DRV_CLR_ONLY, &ramrod_flags); |
| 2162 | |
| 2163 | /* Clean ETH primary MAC */ |
| 2164 | __set_bit(BNX2X_ETH_MAC, &vlan_mac_flags); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2165 | rc = mac_obj->delete_all(bp, &bp->sp_objs->mac_obj, &vlan_mac_flags, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2166 | &ramrod_flags); |
| 2167 | if (rc != 0) |
| 2168 | BNX2X_ERR("Failed to clean ETH MACs: %d\n", rc); |
| 2169 | |
| 2170 | /* Cleanup UC list */ |
| 2171 | vlan_mac_flags = 0; |
| 2172 | __set_bit(BNX2X_UC_LIST_MAC, &vlan_mac_flags); |
| 2173 | rc = mac_obj->delete_all(bp, mac_obj, &vlan_mac_flags, |
| 2174 | &ramrod_flags); |
| 2175 | if (rc != 0) |
| 2176 | BNX2X_ERR("Failed to clean UC list MACs: %d\n", rc); |
| 2177 | |
| 2178 | /***************** Now clean mcast object *****************************/ |
| 2179 | rparam.mcast_obj = &bp->mcast_obj; |
| 2180 | __set_bit(RAMROD_DRV_CLR_ONLY, &rparam.ramrod_flags); |
| 2181 | |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2182 | /* Add a DEL command... - Since we're doing a driver cleanup only, |
| 2183 | * we take a lock surrounding both the initial send and the CONTs, |
| 2184 | * as we don't want a true completion to disrupt us in the middle. |
| 2185 | */ |
| 2186 | netif_addr_lock_bh(bp->dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2187 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_DEL); |
| 2188 | if (rc < 0) |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2189 | BNX2X_ERR("Failed to add a new DEL command to a multi-cast object: %d\n", |
| 2190 | rc); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2191 | |
| 2192 | /* ...and wait until all pending commands are cleared */ |
| 2193 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); |
| 2194 | while (rc != 0) { |
| 2195 | if (rc < 0) { |
| 2196 | BNX2X_ERR("Failed to clean multi-cast object: %d\n", |
| 2197 | rc); |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2198 | netif_addr_unlock_bh(bp->dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2199 | return; |
| 2200 | } |
| 2201 | |
| 2202 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); |
| 2203 | } |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2204 | netif_addr_unlock_bh(bp->dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2205 | } |
| 2206 | |
| 2207 | #ifndef BNX2X_STOP_ON_ERROR |
| 2208 | #define LOAD_ERROR_EXIT(bp, label) \ |
| 2209 | do { \ |
| 2210 | (bp)->state = BNX2X_STATE_ERROR; \ |
| 2211 | goto label; \ |
| 2212 | } while (0) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2213 | |
| 2214 | #define LOAD_ERROR_EXIT_CNIC(bp, label) \ |
| 2215 | do { \ |
| 2216 | bp->cnic_loaded = false; \ |
| 2217 | goto label; \ |
| 2218 | } while (0) |
| 2219 | #else /*BNX2X_STOP_ON_ERROR*/ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2220 | #define LOAD_ERROR_EXIT(bp, label) \ |
| 2221 | do { \ |
| 2222 | (bp)->state = BNX2X_STATE_ERROR; \ |
| 2223 | (bp)->panic = 1; \ |
| 2224 | return -EBUSY; \ |
| 2225 | } while (0) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2226 | #define LOAD_ERROR_EXIT_CNIC(bp, label) \ |
| 2227 | do { \ |
| 2228 | bp->cnic_loaded = false; \ |
| 2229 | (bp)->panic = 1; \ |
| 2230 | return -EBUSY; \ |
| 2231 | } while (0) |
| 2232 | #endif /*BNX2X_STOP_ON_ERROR*/ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2233 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2234 | static void bnx2x_free_fw_stats_mem(struct bnx2x *bp) |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2235 | { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2236 | BNX2X_PCI_FREE(bp->fw_stats, bp->fw_stats_mapping, |
| 2237 | bp->fw_stats_data_sz + bp->fw_stats_req_sz); |
| 2238 | return; |
| 2239 | } |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2240 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2241 | static int bnx2x_alloc_fw_stats_mem(struct bnx2x *bp) |
| 2242 | { |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2243 | int num_groups, vf_headroom = 0; |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2244 | int is_fcoe_stats = NO_FCOE(bp) ? 0 : 1; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2245 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2246 | /* number of queues for statistics is number of eth queues + FCoE */ |
| 2247 | u8 num_queue_stats = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe_stats; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2248 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2249 | /* Total number of FW statistics requests = |
| 2250 | * 1 for port stats + 1 for PF stats + potential 2 for FCoE (fcoe proper |
| 2251 | * and fcoe l2 queue) stats + num of queues (which includes another 1 |
| 2252 | * for fcoe l2 queue if applicable) |
| 2253 | */ |
| 2254 | bp->fw_stats_num = 2 + is_fcoe_stats + num_queue_stats; |
| 2255 | |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2256 | /* vf stats appear in the request list, but their data is allocated by |
| 2257 | * the VFs themselves. We don't include them in the bp->fw_stats_num as |
| 2258 | * it is used to determine where to place the vf stats queries in the |
| 2259 | * request struct |
| 2260 | */ |
| 2261 | if (IS_SRIOV(bp)) |
Ariel Elior | 6411280 | 2013-01-07 00:50:23 +0000 | [diff] [blame] | 2262 | vf_headroom = bnx2x_vf_headroom(bp); |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2263 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2264 | /* Request is built from stats_query_header and an array of |
| 2265 | * stats_query_cmd_group each of which contains |
| 2266 | * STATS_QUERY_CMD_COUNT rules. The real number or requests is |
| 2267 | * configured in the stats_query_header. |
| 2268 | */ |
| 2269 | num_groups = |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2270 | (((bp->fw_stats_num + vf_headroom) / STATS_QUERY_CMD_COUNT) + |
| 2271 | (((bp->fw_stats_num + vf_headroom) % STATS_QUERY_CMD_COUNT) ? |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2272 | 1 : 0)); |
| 2273 | |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2274 | DP(BNX2X_MSG_SP, "stats fw_stats_num %d, vf headroom %d, num_groups %d\n", |
| 2275 | bp->fw_stats_num, vf_headroom, num_groups); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2276 | bp->fw_stats_req_sz = sizeof(struct stats_query_header) + |
| 2277 | num_groups * sizeof(struct stats_query_cmd_group); |
| 2278 | |
| 2279 | /* Data for statistics requests + stats_counter |
| 2280 | * stats_counter holds per-STORM counters that are incremented |
| 2281 | * when STORM has finished with the current request. |
| 2282 | * memory for FCoE offloaded statistics are counted anyway, |
| 2283 | * even if they will not be sent. |
| 2284 | * VF stats are not accounted for here as the data of VF stats is stored |
| 2285 | * in memory allocated by the VF, not here. |
| 2286 | */ |
| 2287 | bp->fw_stats_data_sz = sizeof(struct per_port_stats) + |
| 2288 | sizeof(struct per_pf_stats) + |
| 2289 | sizeof(struct fcoe_statistics_params) + |
| 2290 | sizeof(struct per_queue_stats) * num_queue_stats + |
| 2291 | sizeof(struct stats_counter); |
| 2292 | |
Joe Perches | cd2b038 | 2014-02-20 13:25:51 -0800 | [diff] [blame] | 2293 | bp->fw_stats = BNX2X_PCI_ALLOC(&bp->fw_stats_mapping, |
| 2294 | bp->fw_stats_data_sz + bp->fw_stats_req_sz); |
| 2295 | if (!bp->fw_stats) |
| 2296 | goto alloc_mem_err; |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2297 | |
| 2298 | /* Set shortcuts */ |
| 2299 | bp->fw_stats_req = (struct bnx2x_fw_stats_req *)bp->fw_stats; |
| 2300 | bp->fw_stats_req_mapping = bp->fw_stats_mapping; |
| 2301 | bp->fw_stats_data = (struct bnx2x_fw_stats_data *) |
| 2302 | ((u8 *)bp->fw_stats + bp->fw_stats_req_sz); |
| 2303 | bp->fw_stats_data_mapping = bp->fw_stats_mapping + |
| 2304 | bp->fw_stats_req_sz; |
| 2305 | |
Yuval Mintz | 6bf07b8 | 2013-06-02 00:06:20 +0000 | [diff] [blame] | 2306 | DP(BNX2X_MSG_SP, "statistics request base address set to %x %x\n", |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2307 | U64_HI(bp->fw_stats_req_mapping), |
| 2308 | U64_LO(bp->fw_stats_req_mapping)); |
Yuval Mintz | 6bf07b8 | 2013-06-02 00:06:20 +0000 | [diff] [blame] | 2309 | DP(BNX2X_MSG_SP, "statistics data base address set to %x %x\n", |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2310 | U64_HI(bp->fw_stats_data_mapping), |
| 2311 | U64_LO(bp->fw_stats_data_mapping)); |
| 2312 | return 0; |
| 2313 | |
| 2314 | alloc_mem_err: |
| 2315 | bnx2x_free_fw_stats_mem(bp); |
| 2316 | BNX2X_ERR("Can't allocate FW stats memory\n"); |
| 2317 | return -ENOMEM; |
| 2318 | } |
| 2319 | |
| 2320 | /* send load request to mcp and analyze response */ |
| 2321 | static int bnx2x_nic_load_request(struct bnx2x *bp, u32 *load_code) |
| 2322 | { |
Dmitry Kravkov | 178135c | 2013-05-22 21:21:50 +0000 | [diff] [blame] | 2323 | u32 param; |
| 2324 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2325 | /* init fw_seq */ |
| 2326 | bp->fw_seq = |
| 2327 | (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_mb_header) & |
| 2328 | DRV_MSG_SEQ_NUMBER_MASK); |
| 2329 | BNX2X_DEV_INFO("fw_seq 0x%08x\n", bp->fw_seq); |
| 2330 | |
| 2331 | /* Get current FW pulse sequence */ |
| 2332 | bp->fw_drv_pulse_wr_seq = |
| 2333 | (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_pulse_mb) & |
| 2334 | DRV_PULSE_SEQ_MASK); |
| 2335 | BNX2X_DEV_INFO("drv_pulse 0x%x\n", bp->fw_drv_pulse_wr_seq); |
| 2336 | |
Dmitry Kravkov | 178135c | 2013-05-22 21:21:50 +0000 | [diff] [blame] | 2337 | param = DRV_MSG_CODE_LOAD_REQ_WITH_LFA; |
| 2338 | |
| 2339 | if (IS_MF_SD(bp) && bnx2x_port_after_undi(bp)) |
| 2340 | param |= DRV_MSG_CODE_LOAD_REQ_FORCE_LFA; |
| 2341 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2342 | /* load request */ |
Dmitry Kravkov | 178135c | 2013-05-22 21:21:50 +0000 | [diff] [blame] | 2343 | (*load_code) = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ, param); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2344 | |
| 2345 | /* if mcp fails to respond we must abort */ |
| 2346 | if (!(*load_code)) { |
| 2347 | BNX2X_ERR("MCP response failure, aborting\n"); |
| 2348 | return -EBUSY; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2349 | } |
| 2350 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2351 | /* If mcp refused (e.g. other port is in diagnostic mode) we |
| 2352 | * must abort |
| 2353 | */ |
| 2354 | if ((*load_code) == FW_MSG_CODE_DRV_LOAD_REFUSED) { |
| 2355 | BNX2X_ERR("MCP refused load request, aborting\n"); |
| 2356 | return -EBUSY; |
| 2357 | } |
| 2358 | return 0; |
| 2359 | } |
| 2360 | |
| 2361 | /* check whether another PF has already loaded FW to chip. In |
| 2362 | * virtualized environments a pf from another VM may have already |
| 2363 | * initialized the device including loading FW |
| 2364 | */ |
Yuval Mintz | 91ebb92 | 2013-12-26 09:57:07 +0200 | [diff] [blame] | 2365 | int bnx2x_compare_fw_ver(struct bnx2x *bp, u32 load_code, bool print_err) |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2366 | { |
| 2367 | /* is another pf loaded on this engine? */ |
| 2368 | if (load_code != FW_MSG_CODE_DRV_LOAD_COMMON_CHIP && |
| 2369 | load_code != FW_MSG_CODE_DRV_LOAD_COMMON) { |
| 2370 | /* build my FW version dword */ |
| 2371 | u32 my_fw = (BCM_5710_FW_MAJOR_VERSION) + |
| 2372 | (BCM_5710_FW_MINOR_VERSION << 8) + |
| 2373 | (BCM_5710_FW_REVISION_VERSION << 16) + |
| 2374 | (BCM_5710_FW_ENGINEERING_VERSION << 24); |
| 2375 | |
| 2376 | /* read loaded FW from chip */ |
| 2377 | u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM); |
| 2378 | |
| 2379 | DP(BNX2X_MSG_SP, "loaded fw %x, my fw %x\n", |
| 2380 | loaded_fw, my_fw); |
| 2381 | |
| 2382 | /* abort nic load if version mismatch */ |
| 2383 | if (my_fw != loaded_fw) { |
Yuval Mintz | 91ebb92 | 2013-12-26 09:57:07 +0200 | [diff] [blame] | 2384 | if (print_err) |
| 2385 | BNX2X_ERR("bnx2x with FW %x was already loaded which mismatches my %x FW. Aborting\n", |
| 2386 | loaded_fw, my_fw); |
| 2387 | else |
| 2388 | BNX2X_DEV_INFO("bnx2x with FW %x was already loaded which mismatches my %x FW, possibly due to MF UNDI\n", |
| 2389 | loaded_fw, my_fw); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2390 | return -EBUSY; |
| 2391 | } |
| 2392 | } |
| 2393 | return 0; |
| 2394 | } |
| 2395 | |
| 2396 | /* returns the "mcp load_code" according to global load_count array */ |
| 2397 | static int bnx2x_nic_load_no_mcp(struct bnx2x *bp, int port) |
| 2398 | { |
| 2399 | int path = BP_PATH(bp); |
| 2400 | |
| 2401 | DP(NETIF_MSG_IFUP, "NO MCP - load counts[%d] %d, %d, %d\n", |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 2402 | path, bnx2x_load_count[path][0], bnx2x_load_count[path][1], |
| 2403 | bnx2x_load_count[path][2]); |
| 2404 | bnx2x_load_count[path][0]++; |
| 2405 | bnx2x_load_count[path][1 + port]++; |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2406 | DP(NETIF_MSG_IFUP, "NO MCP - new load counts[%d] %d, %d, %d\n", |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 2407 | path, bnx2x_load_count[path][0], bnx2x_load_count[path][1], |
| 2408 | bnx2x_load_count[path][2]); |
| 2409 | if (bnx2x_load_count[path][0] == 1) |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2410 | return FW_MSG_CODE_DRV_LOAD_COMMON; |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 2411 | else if (bnx2x_load_count[path][1 + port] == 1) |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2412 | return FW_MSG_CODE_DRV_LOAD_PORT; |
| 2413 | else |
| 2414 | return FW_MSG_CODE_DRV_LOAD_FUNCTION; |
| 2415 | } |
| 2416 | |
| 2417 | /* mark PMF if applicable */ |
| 2418 | static void bnx2x_nic_load_pmf(struct bnx2x *bp, u32 load_code) |
| 2419 | { |
| 2420 | if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) || |
| 2421 | (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP) || |
| 2422 | (load_code == FW_MSG_CODE_DRV_LOAD_PORT)) { |
| 2423 | bp->port.pmf = 1; |
| 2424 | /* We need the barrier to ensure the ordering between the |
| 2425 | * writing to bp->port.pmf here and reading it from the |
| 2426 | * bnx2x_periodic_task(). |
| 2427 | */ |
| 2428 | smp_mb(); |
| 2429 | } else { |
| 2430 | bp->port.pmf = 0; |
| 2431 | } |
| 2432 | |
| 2433 | DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf); |
| 2434 | } |
| 2435 | |
| 2436 | static void bnx2x_nic_load_afex_dcc(struct bnx2x *bp, int load_code) |
| 2437 | { |
| 2438 | if (((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) || |
| 2439 | (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP)) && |
| 2440 | (bp->common.shmem2_base)) { |
| 2441 | if (SHMEM2_HAS(bp, dcc_support)) |
| 2442 | SHMEM2_WR(bp, dcc_support, |
| 2443 | (SHMEM_DCC_SUPPORT_DISABLE_ENABLE_PF_TLV | |
| 2444 | SHMEM_DCC_SUPPORT_BANDWIDTH_ALLOCATION_TLV)); |
| 2445 | if (SHMEM2_HAS(bp, afex_driver_support)) |
| 2446 | SHMEM2_WR(bp, afex_driver_support, |
| 2447 | SHMEM_AFEX_SUPPORTED_VERSION_ONE); |
| 2448 | } |
| 2449 | |
| 2450 | /* Set AFEX default VLAN tag to an invalid value */ |
| 2451 | bp->afex_def_vlan_tag = -1; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2452 | } |
| 2453 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2454 | /** |
| 2455 | * bnx2x_bz_fp - zero content of the fastpath structure. |
| 2456 | * |
| 2457 | * @bp: driver handle |
| 2458 | * @index: fastpath index to be zeroed |
| 2459 | * |
| 2460 | * Makes sure the contents of the bp->fp[index].napi is kept |
| 2461 | * intact. |
| 2462 | */ |
| 2463 | static void bnx2x_bz_fp(struct bnx2x *bp, int index) |
| 2464 | { |
| 2465 | struct bnx2x_fastpath *fp = &bp->fp[index]; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2466 | int cos; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2467 | struct napi_struct orig_napi = fp->napi; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2468 | struct bnx2x_agg_info *orig_tpa_info = fp->tpa_info; |
Yuval Mintz | d76a611 | 2013-06-02 00:06:17 +0000 | [diff] [blame] | 2469 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2470 | /* bzero bnx2x_fastpath contents */ |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 2471 | if (fp->tpa_info) |
| 2472 | memset(fp->tpa_info, 0, ETH_MAX_AGGREGATION_QUEUES_E1H_E2 * |
| 2473 | sizeof(struct bnx2x_agg_info)); |
| 2474 | memset(fp, 0, sizeof(*fp)); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2475 | |
| 2476 | /* Restore the NAPI object as it has been already initialized */ |
| 2477 | fp->napi = orig_napi; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2478 | fp->tpa_info = orig_tpa_info; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2479 | fp->bp = bp; |
| 2480 | fp->index = index; |
| 2481 | if (IS_ETH_FP(fp)) |
| 2482 | fp->max_cos = bp->max_cos; |
| 2483 | else |
| 2484 | /* Special queues support only one CoS */ |
| 2485 | fp->max_cos = 1; |
| 2486 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2487 | /* Init txdata pointers */ |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2488 | if (IS_FCOE_FP(fp)) |
| 2489 | fp->txdata_ptr[0] = &bp->bnx2x_txq[FCOE_TXQ_IDX(bp)]; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2490 | if (IS_ETH_FP(fp)) |
| 2491 | for_each_cos_in_tx_queue(fp, cos) |
| 2492 | fp->txdata_ptr[cos] = &bp->bnx2x_txq[cos * |
| 2493 | BNX2X_NUM_ETH_QUEUES(bp) + index]; |
| 2494 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2495 | /* set the tpa flag for each queue. The tpa flag determines the queue |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2496 | * minimal size so it must be set prior to queue memory allocation |
| 2497 | */ |
Michal Schmidt | f8dcb5e | 2015-04-28 11:34:23 +0200 | [diff] [blame] | 2498 | if (bp->dev->features & NETIF_F_LRO) |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2499 | fp->mode = TPA_MODE_LRO; |
Michal Schmidt | f8dcb5e | 2015-04-28 11:34:23 +0200 | [diff] [blame] | 2500 | else if (bp->dev->features & NETIF_F_GRO && |
Michal Schmidt | 7e6b4d4 | 2015-04-28 11:34:22 +0200 | [diff] [blame] | 2501 | bnx2x_mtu_allows_gro(bp->dev->mtu)) |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2502 | fp->mode = TPA_MODE_GRO; |
Michal Schmidt | 7e6b4d4 | 2015-04-28 11:34:22 +0200 | [diff] [blame] | 2503 | else |
| 2504 | fp->mode = TPA_MODE_DISABLED; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2505 | |
Michal Schmidt | 22a8f23 | 2015-04-27 17:20:38 +0200 | [diff] [blame] | 2506 | /* We don't want TPA if it's disabled in bp |
| 2507 | * or if this is an FCoE L2 ring. |
| 2508 | */ |
| 2509 | if (bp->disable_tpa || IS_FCOE_FP(fp)) |
Michal Schmidt | 7e6b4d4 | 2015-04-28 11:34:22 +0200 | [diff] [blame] | 2510 | fp->mode = TPA_MODE_DISABLED; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2511 | } |
| 2512 | |
| 2513 | int bnx2x_load_cnic(struct bnx2x *bp) |
| 2514 | { |
| 2515 | int i, rc, port = BP_PORT(bp); |
| 2516 | |
| 2517 | DP(NETIF_MSG_IFUP, "Starting CNIC-related load\n"); |
| 2518 | |
| 2519 | mutex_init(&bp->cnic_mutex); |
| 2520 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2521 | if (IS_PF(bp)) { |
| 2522 | rc = bnx2x_alloc_mem_cnic(bp); |
| 2523 | if (rc) { |
| 2524 | BNX2X_ERR("Unable to allocate bp memory for cnic\n"); |
| 2525 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); |
| 2526 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2527 | } |
| 2528 | |
| 2529 | rc = bnx2x_alloc_fp_mem_cnic(bp); |
| 2530 | if (rc) { |
| 2531 | BNX2X_ERR("Unable to allocate memory for cnic fps\n"); |
| 2532 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); |
| 2533 | } |
| 2534 | |
| 2535 | /* Update the number of queues with the cnic queues */ |
| 2536 | rc = bnx2x_set_real_num_queues(bp, 1); |
| 2537 | if (rc) { |
| 2538 | BNX2X_ERR("Unable to set real_num_queues including cnic\n"); |
| 2539 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); |
| 2540 | } |
| 2541 | |
| 2542 | /* Add all CNIC NAPI objects */ |
| 2543 | bnx2x_add_all_napi_cnic(bp); |
| 2544 | DP(NETIF_MSG_IFUP, "cnic napi added\n"); |
| 2545 | bnx2x_napi_enable_cnic(bp); |
| 2546 | |
| 2547 | rc = bnx2x_init_hw_func_cnic(bp); |
| 2548 | if (rc) |
| 2549 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic1); |
| 2550 | |
| 2551 | bnx2x_nic_init_cnic(bp); |
| 2552 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2553 | if (IS_PF(bp)) { |
| 2554 | /* Enable Timer scan */ |
| 2555 | REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 1); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2556 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2557 | /* setup cnic queues */ |
| 2558 | for_each_cnic_queue(bp, i) { |
| 2559 | rc = bnx2x_setup_queue(bp, &bp->fp[i], 0); |
| 2560 | if (rc) { |
| 2561 | BNX2X_ERR("Queue setup failed\n"); |
| 2562 | LOAD_ERROR_EXIT(bp, load_error_cnic2); |
| 2563 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2564 | } |
| 2565 | } |
| 2566 | |
| 2567 | /* Initialize Rx filter. */ |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2568 | bnx2x_set_rx_mode_inner(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2569 | |
| 2570 | /* re-read iscsi info */ |
| 2571 | bnx2x_get_iscsi_info(bp); |
| 2572 | bnx2x_setup_cnic_irq_info(bp); |
| 2573 | bnx2x_setup_cnic_info(bp); |
| 2574 | bp->cnic_loaded = true; |
| 2575 | if (bp->state == BNX2X_STATE_OPEN) |
| 2576 | bnx2x_cnic_notify(bp, CNIC_CTL_START_CMD); |
| 2577 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2578 | DP(NETIF_MSG_IFUP, "Ending successfully CNIC-related load\n"); |
| 2579 | |
| 2580 | return 0; |
| 2581 | |
| 2582 | #ifndef BNX2X_STOP_ON_ERROR |
| 2583 | load_error_cnic2: |
| 2584 | /* Disable Timer scan */ |
| 2585 | REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 0); |
| 2586 | |
| 2587 | load_error_cnic1: |
| 2588 | bnx2x_napi_disable_cnic(bp); |
| 2589 | /* Update the number of queues without the cnic queues */ |
Yuval Mintz | d9d8186 | 2013-09-23 10:12:53 +0300 | [diff] [blame] | 2590 | if (bnx2x_set_real_num_queues(bp, 0)) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2591 | BNX2X_ERR("Unable to set real_num_queues not including cnic\n"); |
| 2592 | load_error_cnic0: |
| 2593 | BNX2X_ERR("CNIC-related load failed\n"); |
| 2594 | bnx2x_free_fp_mem_cnic(bp); |
| 2595 | bnx2x_free_mem_cnic(bp); |
| 2596 | return rc; |
| 2597 | #endif /* ! BNX2X_STOP_ON_ERROR */ |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2598 | } |
| 2599 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2600 | /* must be called with rtnl_lock */ |
| 2601 | int bnx2x_nic_load(struct bnx2x *bp, int load_mode) |
| 2602 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2603 | int port = BP_PORT(bp); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2604 | int i, rc = 0, load_code = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2605 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2606 | DP(NETIF_MSG_IFUP, "Starting NIC load\n"); |
| 2607 | DP(NETIF_MSG_IFUP, |
| 2608 | "CNIC is %s\n", CNIC_ENABLED(bp) ? "enabled" : "disabled"); |
| 2609 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2610 | #ifdef BNX2X_STOP_ON_ERROR |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2611 | if (unlikely(bp->panic)) { |
| 2612 | BNX2X_ERR("Can't load NIC when there is panic\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2613 | return -EPERM; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2614 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2615 | #endif |
| 2616 | |
| 2617 | bp->state = BNX2X_STATE_OPENING_WAIT4_LOAD; |
| 2618 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2619 | /* zero the structure w/o any lock, before SP handler is initialized */ |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 2620 | memset(&bp->last_reported_link, 0, sizeof(bp->last_reported_link)); |
| 2621 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 2622 | &bp->last_reported_link.link_report_flags); |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 2623 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2624 | if (IS_PF(bp)) |
| 2625 | /* must be called before memory allocation and HW init */ |
| 2626 | bnx2x_ilt_set_info(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2627 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2628 | /* |
| 2629 | * Zero fastpath structures preserving invariants like napi, which are |
| 2630 | * allocated only once, fp index, max_cos, bp pointer. |
Michal Schmidt | 7e6b4d4 | 2015-04-28 11:34:22 +0200 | [diff] [blame] | 2631 | * Also set fp->mode and txdata_ptr. |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2632 | */ |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2633 | DP(NETIF_MSG_IFUP, "num queues: %d", bp->num_queues); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2634 | for_each_queue(bp, i) |
| 2635 | bnx2x_bz_fp(bp, i); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2636 | memset(bp->bnx2x_txq, 0, (BNX2X_MAX_RSS_COUNT(bp) * BNX2X_MULTI_TX_COS + |
| 2637 | bp->num_cnic_queues) * |
| 2638 | sizeof(struct bnx2x_fp_txdata)); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2639 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2640 | bp->fcoe_init = false; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2641 | |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 2642 | /* Set the receive queues buffer size */ |
| 2643 | bnx2x_set_rx_buf_size(bp); |
| 2644 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2645 | if (IS_PF(bp)) { |
| 2646 | rc = bnx2x_alloc_mem(bp); |
| 2647 | if (rc) { |
| 2648 | BNX2X_ERR("Unable to allocate bp memory\n"); |
| 2649 | return rc; |
| 2650 | } |
| 2651 | } |
| 2652 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2653 | /* need to be done after alloc mem, since it's self adjusting to amount |
| 2654 | * of memory available for RSS queues |
| 2655 | */ |
| 2656 | rc = bnx2x_alloc_fp_mem(bp); |
| 2657 | if (rc) { |
| 2658 | BNX2X_ERR("Unable to allocate memory for fps\n"); |
| 2659 | LOAD_ERROR_EXIT(bp, load_error0); |
| 2660 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2661 | |
Dmitry Kravkov | e3ed4ea | 2013-10-27 13:07:00 +0200 | [diff] [blame] | 2662 | /* Allocated memory for FW statistics */ |
| 2663 | if (bnx2x_alloc_fw_stats_mem(bp)) |
| 2664 | LOAD_ERROR_EXIT(bp, load_error0); |
| 2665 | |
Ariel Elior | 8d9ac29 | 2013-01-01 05:22:27 +0000 | [diff] [blame] | 2666 | /* request pf to initialize status blocks */ |
| 2667 | if (IS_VF(bp)) { |
| 2668 | rc = bnx2x_vfpf_init(bp); |
| 2669 | if (rc) |
| 2670 | LOAD_ERROR_EXIT(bp, load_error0); |
| 2671 | } |
| 2672 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2673 | /* As long as bnx2x_alloc_mem() may possibly update |
| 2674 | * bp->num_queues, bnx2x_set_real_num_queues() should always |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2675 | * come after it. At this stage cnic queues are not counted. |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2676 | */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2677 | rc = bnx2x_set_real_num_queues(bp, 0); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2678 | if (rc) { |
| 2679 | BNX2X_ERR("Unable to set real_num_queues\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2680 | LOAD_ERROR_EXIT(bp, load_error0); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2681 | } |
| 2682 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2683 | /* configure multi cos mappings in kernel. |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2684 | * this configuration may be overridden by a multi class queue |
| 2685 | * discipline or by a dcbx negotiation result. |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2686 | */ |
| 2687 | bnx2x_setup_tc(bp->dev, bp->max_cos); |
| 2688 | |
Merav Sicron | 26614ba | 2012-08-27 03:26:19 +0000 | [diff] [blame] | 2689 | /* Add all NAPI objects */ |
| 2690 | bnx2x_add_all_napi(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2691 | DP(NETIF_MSG_IFUP, "napi added\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2692 | bnx2x_napi_enable(bp); |
| 2693 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2694 | if (IS_PF(bp)) { |
| 2695 | /* set pf load just before approaching the MCP */ |
| 2696 | bnx2x_set_pf_load(bp); |
Ariel Elior | 889b9af | 2012-01-26 06:01:51 +0000 | [diff] [blame] | 2697 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2698 | /* if mcp exists send load request and analyze response */ |
| 2699 | if (!BP_NOMCP(bp)) { |
| 2700 | /* attempt to load pf */ |
| 2701 | rc = bnx2x_nic_load_request(bp, &load_code); |
| 2702 | if (rc) |
| 2703 | LOAD_ERROR_EXIT(bp, load_error1); |
Ariel Elior | 95c6c616 | 2012-01-26 06:01:52 +0000 | [diff] [blame] | 2704 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2705 | /* what did mcp say? */ |
Yuval Mintz | 91ebb92 | 2013-12-26 09:57:07 +0200 | [diff] [blame] | 2706 | rc = bnx2x_compare_fw_ver(bp, load_code, true); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2707 | if (rc) { |
| 2708 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
Ariel Elior | d1e2d96 | 2012-01-26 06:01:49 +0000 | [diff] [blame] | 2709 | LOAD_ERROR_EXIT(bp, load_error2); |
| 2710 | } |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2711 | } else { |
| 2712 | load_code = bnx2x_nic_load_no_mcp(bp, port); |
Ariel Elior | d1e2d96 | 2012-01-26 06:01:49 +0000 | [diff] [blame] | 2713 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2714 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2715 | /* mark pmf if applicable */ |
| 2716 | bnx2x_nic_load_pmf(bp, load_code); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2717 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2718 | /* Init Function state controlling object */ |
| 2719 | bnx2x__init_func_obj(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2720 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2721 | /* Initialize HW */ |
| 2722 | rc = bnx2x_init_hw(bp, load_code); |
| 2723 | if (rc) { |
| 2724 | BNX2X_ERR("HW init failed, aborting\n"); |
| 2725 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
| 2726 | LOAD_ERROR_EXIT(bp, load_error2); |
| 2727 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2728 | } |
| 2729 | |
Yuval Mintz | ecf01c2 | 2013-04-22 02:53:03 +0000 | [diff] [blame] | 2730 | bnx2x_pre_irq_nic_init(bp); |
| 2731 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2732 | /* Connect to IRQs */ |
| 2733 | rc = bnx2x_setup_irqs(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2734 | if (rc) { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2735 | BNX2X_ERR("setup irqs failed\n"); |
| 2736 | if (IS_PF(bp)) |
| 2737 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2738 | LOAD_ERROR_EXIT(bp, load_error2); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2739 | } |
| 2740 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2741 | /* Init per-function objects */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2742 | if (IS_PF(bp)) { |
Yuval Mintz | ecf01c2 | 2013-04-22 02:53:03 +0000 | [diff] [blame] | 2743 | /* Setup NIC internals and enable interrupts */ |
| 2744 | bnx2x_post_irq_nic_init(bp, load_code); |
| 2745 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2746 | bnx2x_init_bp_objs(bp); |
Ariel Elior | b56e967 | 2013-01-01 05:22:32 +0000 | [diff] [blame] | 2747 | bnx2x_iov_nic_init(bp); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2748 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2749 | /* Set AFEX default VLAN tag to an invalid value */ |
| 2750 | bp->afex_def_vlan_tag = -1; |
| 2751 | bnx2x_nic_load_afex_dcc(bp, load_code); |
| 2752 | bp->state = BNX2X_STATE_OPENING_WAIT4_PORT; |
| 2753 | rc = bnx2x_func_start(bp); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2754 | if (rc) { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2755 | BNX2X_ERR("Function start failed!\n"); |
| 2756 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
| 2757 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2758 | LOAD_ERROR_EXIT(bp, load_error3); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2759 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2760 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2761 | /* Send LOAD_DONE command to MCP */ |
| 2762 | if (!BP_NOMCP(bp)) { |
| 2763 | load_code = bnx2x_fw_command(bp, |
| 2764 | DRV_MSG_CODE_LOAD_DONE, 0); |
| 2765 | if (!load_code) { |
| 2766 | BNX2X_ERR("MCP response failure, aborting\n"); |
| 2767 | rc = -EBUSY; |
| 2768 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2769 | } |
| 2770 | } |
| 2771 | |
Ariel Elior | 0c14e5c | 2013-04-17 22:49:06 +0000 | [diff] [blame] | 2772 | /* initialize FW coalescing state machines in RAM */ |
| 2773 | bnx2x_update_coalesce(bp); |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2774 | } |
Ariel Elior | 0c14e5c | 2013-04-17 22:49:06 +0000 | [diff] [blame] | 2775 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2776 | /* setup the leading queue */ |
| 2777 | rc = bnx2x_setup_leading(bp); |
| 2778 | if (rc) { |
| 2779 | BNX2X_ERR("Setup leading failed!\n"); |
| 2780 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2781 | } |
| 2782 | |
| 2783 | /* set up the rest of the queues */ |
| 2784 | for_each_nondefault_eth_queue(bp, i) { |
| 2785 | if (IS_PF(bp)) |
| 2786 | rc = bnx2x_setup_queue(bp, &bp->fp[i], false); |
| 2787 | else /* VF */ |
| 2788 | rc = bnx2x_vfpf_setup_q(bp, &bp->fp[i], false); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2789 | if (rc) { |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2790 | BNX2X_ERR("Queue %d setup failed\n", i); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2791 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2792 | } |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2793 | } |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2794 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2795 | /* setup rss */ |
| 2796 | rc = bnx2x_init_rss(bp); |
| 2797 | if (rc) { |
| 2798 | BNX2X_ERR("PF RSS init failed\n"); |
| 2799 | LOAD_ERROR_EXIT(bp, load_error3); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2800 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2801 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2802 | /* Now when Clients are configured we are ready to work */ |
| 2803 | bp->state = BNX2X_STATE_OPEN; |
| 2804 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2805 | /* Configure a ucast MAC */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2806 | if (IS_PF(bp)) |
| 2807 | rc = bnx2x_set_eth_mac(bp, true); |
Ariel Elior | 8d9ac29 | 2013-01-01 05:22:27 +0000 | [diff] [blame] | 2808 | else /* vf */ |
Dmitry Kravkov | f8f4f61 | 2013-04-24 01:45:00 +0000 | [diff] [blame] | 2809 | rc = bnx2x_vfpf_config_mac(bp, bp->dev->dev_addr, bp->fp->index, |
| 2810 | true); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2811 | if (rc) { |
| 2812 | BNX2X_ERR("Setting Ethernet MAC failed\n"); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2813 | LOAD_ERROR_EXIT(bp, load_error3); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2814 | } |
Vladislav Zolotarov | 6e30dd4 | 2011-02-06 11:25:41 -0800 | [diff] [blame] | 2815 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2816 | if (IS_PF(bp) && bp->pending_max) { |
Dmitry Kravkov | e3835b9 | 2011-03-06 10:50:44 +0000 | [diff] [blame] | 2817 | bnx2x_update_max_mf_config(bp, bp->pending_max); |
| 2818 | bp->pending_max = 0; |
| 2819 | } |
| 2820 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2821 | if (bp->port.pmf) { |
| 2822 | rc = bnx2x_initial_phy_init(bp, load_mode); |
| 2823 | if (rc) |
| 2824 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2825 | } |
Barak Witkowski | c63da99 | 2012-12-05 23:04:03 +0000 | [diff] [blame] | 2826 | bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_BOOT_FROM_SAN; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2827 | |
| 2828 | /* Start fast path */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2829 | |
| 2830 | /* Initialize Rx filter. */ |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2831 | bnx2x_set_rx_mode_inner(bp); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2832 | |
Michal Kalderon | eeed018 | 2014-08-17 16:47:44 +0300 | [diff] [blame] | 2833 | if (bp->flags & PTP_SUPPORTED) { |
| 2834 | bnx2x_init_ptp(bp); |
| 2835 | bnx2x_configure_ptp_filters(bp); |
| 2836 | } |
| 2837 | /* Start Tx */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2838 | switch (load_mode) { |
| 2839 | case LOAD_NORMAL: |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2840 | /* Tx queue should be only re-enabled */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2841 | netif_tx_wake_all_queues(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2842 | break; |
| 2843 | |
| 2844 | case LOAD_OPEN: |
| 2845 | netif_tx_start_all_queues(bp->dev); |
Peter Zijlstra | 4e857c5 | 2014-03-17 18:06:10 +0100 | [diff] [blame] | 2846 | smp_mb__after_atomic(); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2847 | break; |
| 2848 | |
| 2849 | case LOAD_DIAG: |
Merav Sicron | 8970b2e | 2012-06-19 07:48:22 +0000 | [diff] [blame] | 2850 | case LOAD_LOOPBACK_EXT: |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2851 | bp->state = BNX2X_STATE_DIAG; |
| 2852 | break; |
| 2853 | |
| 2854 | default: |
| 2855 | break; |
| 2856 | } |
| 2857 | |
Dmitry Kravkov | 00253a8 | 2011-11-13 04:34:25 +0000 | [diff] [blame] | 2858 | if (bp->port.pmf) |
Barak Witkowski | 4c70489 | 2012-12-02 04:05:47 +0000 | [diff] [blame] | 2859 | bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_PORT_MASK, 0); |
Dmitry Kravkov | 00253a8 | 2011-11-13 04:34:25 +0000 | [diff] [blame] | 2860 | else |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2861 | bnx2x__link_status_update(bp); |
| 2862 | |
| 2863 | /* start the timer */ |
| 2864 | mod_timer(&bp->timer, jiffies + bp->current_interval); |
| 2865 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2866 | if (CNIC_ENABLED(bp)) |
| 2867 | bnx2x_load_cnic(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2868 | |
Yuval Mintz | 42f8277 | 2014-03-23 18:12:23 +0200 | [diff] [blame] | 2869 | if (IS_PF(bp)) |
| 2870 | bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_GET_DRV_VERSION, 0); |
| 2871 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2872 | if (IS_PF(bp) && SHMEM2_HAS(bp, drv_capabilities_flag)) { |
| 2873 | /* mark driver is loaded in shmem2 */ |
Yuval Mintz | 9ce392d | 2012-03-12 08:53:11 +0000 | [diff] [blame] | 2874 | u32 val; |
| 2875 | val = SHMEM2_RD(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)]); |
| 2876 | SHMEM2_WR(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)], |
| 2877 | val | DRV_FLAGS_CAPABILITIES_LOADED_SUPPORTED | |
| 2878 | DRV_FLAGS_CAPABILITIES_LOADED_L2); |
| 2879 | } |
| 2880 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2881 | /* Wait for all pending SP commands to complete */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2882 | if (IS_PF(bp) && !bnx2x_wait_sp_comp(bp, ~0x0UL)) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2883 | BNX2X_ERR("Timeout waiting for SP elements to complete\n"); |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 2884 | bnx2x_nic_unload(bp, UNLOAD_CLOSE, false); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2885 | return -EBUSY; |
| 2886 | } |
Dmitry Kravkov | 6891dd2 | 2010-08-03 21:49:40 +0000 | [diff] [blame] | 2887 | |
Barak Witkowski | 9876879 | 2012-06-19 07:48:31 +0000 | [diff] [blame] | 2888 | /* If PMF - send ADMIN DCBX msg to MFW to initiate DCBX FSM */ |
| 2889 | if (bp->port.pmf && (bp->state != BNX2X_STATE_DIAG)) |
| 2890 | bnx2x_dcbx_init(bp, false); |
| 2891 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2892 | DP(NETIF_MSG_IFUP, "Ending successfully NIC load\n"); |
| 2893 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2894 | return 0; |
| 2895 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2896 | #ifndef BNX2X_STOP_ON_ERROR |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2897 | load_error3: |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2898 | if (IS_PF(bp)) { |
| 2899 | bnx2x_int_disable_sync(bp, 1); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2900 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2901 | /* Clean queueable objects */ |
| 2902 | bnx2x_squeeze_objects(bp); |
| 2903 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2904 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2905 | /* Free SKBs, SGEs, TPA pool and driver internals */ |
| 2906 | bnx2x_free_skbs(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 2907 | for_each_rx_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2908 | bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2909 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2910 | /* Release IRQs */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2911 | bnx2x_free_irq(bp); |
| 2912 | load_error2: |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2913 | if (IS_PF(bp) && !BP_NOMCP(bp)) { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2914 | bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP, 0); |
| 2915 | bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0); |
| 2916 | } |
| 2917 | |
| 2918 | bp->port.pmf = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2919 | load_error1: |
| 2920 | bnx2x_napi_disable(bp); |
Michal Schmidt | 722c6f5 | 2013-03-15 05:27:54 +0000 | [diff] [blame] | 2921 | bnx2x_del_all_napi(bp); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2922 | |
Ariel Elior | 889b9af | 2012-01-26 06:01:51 +0000 | [diff] [blame] | 2923 | /* clear pf_load status, as it was already set */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2924 | if (IS_PF(bp)) |
| 2925 | bnx2x_clear_pf_load(bp); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2926 | load_error0: |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2927 | bnx2x_free_fw_stats_mem(bp); |
Dmitry Kravkov | e3ed4ea | 2013-10-27 13:07:00 +0200 | [diff] [blame] | 2928 | bnx2x_free_fp_mem(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2929 | bnx2x_free_mem(bp); |
| 2930 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2931 | return rc; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2932 | #endif /* ! BNX2X_STOP_ON_ERROR */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2933 | } |
| 2934 | |
Yuval Mintz | 7fa6f340 | 2013-03-20 05:21:28 +0000 | [diff] [blame] | 2935 | int bnx2x_drain_tx_queues(struct bnx2x *bp) |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2936 | { |
| 2937 | u8 rc = 0, cos, i; |
| 2938 | |
| 2939 | /* Wait until tx fastpath tasks complete */ |
| 2940 | for_each_tx_queue(bp, i) { |
| 2941 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
| 2942 | |
| 2943 | for_each_cos_in_tx_queue(fp, cos) |
| 2944 | rc = bnx2x_clean_tx_queue(bp, fp->txdata_ptr[cos]); |
| 2945 | if (rc) |
| 2946 | return rc; |
| 2947 | } |
| 2948 | return 0; |
| 2949 | } |
| 2950 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2951 | /* must be called with rtnl_lock */ |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 2952 | int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2953 | { |
| 2954 | int i; |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2955 | bool global = false; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2956 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2957 | DP(NETIF_MSG_IFUP, "Starting NIC unload\n"); |
| 2958 | |
Yuval Mintz | 9ce392d | 2012-03-12 08:53:11 +0000 | [diff] [blame] | 2959 | /* mark driver is unloaded in shmem2 */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2960 | if (IS_PF(bp) && SHMEM2_HAS(bp, drv_capabilities_flag)) { |
Yuval Mintz | 9ce392d | 2012-03-12 08:53:11 +0000 | [diff] [blame] | 2961 | u32 val; |
| 2962 | val = SHMEM2_RD(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)]); |
| 2963 | SHMEM2_WR(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)], |
| 2964 | val & ~DRV_FLAGS_CAPABILITIES_LOADED_L2); |
| 2965 | } |
| 2966 | |
Yuval Mintz | 80bfe5c | 2013-01-23 03:21:49 +0000 | [diff] [blame] | 2967 | if (IS_PF(bp) && bp->recovery_state != BNX2X_RECOVERY_DONE && |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2968 | (bp->state == BNX2X_STATE_CLOSED || |
| 2969 | bp->state == BNX2X_STATE_ERROR)) { |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2970 | /* We can get here if the driver has been unloaded |
| 2971 | * during parity error recovery and is either waiting for a |
| 2972 | * leader to complete or for other functions to unload and |
| 2973 | * then ifdown has been issued. In this case we want to |
| 2974 | * unload and let other functions to complete a recovery |
| 2975 | * process. |
| 2976 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2977 | bp->recovery_state = BNX2X_RECOVERY_DONE; |
| 2978 | bp->is_leader = 0; |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2979 | bnx2x_release_leader_lock(bp); |
| 2980 | smp_mb(); |
| 2981 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2982 | DP(NETIF_MSG_IFDOWN, "Releasing a leadership...\n"); |
| 2983 | BNX2X_ERR("Can't unload in closed or error state\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2984 | return -EINVAL; |
| 2985 | } |
| 2986 | |
Yuval Mintz | 80bfe5c | 2013-01-23 03:21:49 +0000 | [diff] [blame] | 2987 | /* Nothing to do during unload if previous bnx2x_nic_load() |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2988 | * have not completed successfully - all resources are released. |
Yuval Mintz | 80bfe5c | 2013-01-23 03:21:49 +0000 | [diff] [blame] | 2989 | * |
| 2990 | * we can get here only after unsuccessful ndo_* callback, during which |
| 2991 | * dev->IFF_UP flag is still on. |
| 2992 | */ |
| 2993 | if (bp->state == BNX2X_STATE_CLOSED || bp->state == BNX2X_STATE_ERROR) |
| 2994 | return 0; |
| 2995 | |
| 2996 | /* It's important to set the bp->state to the value different from |
Vladislav Zolotarov | 87b7ba3 | 2011-08-02 01:35:43 -0700 | [diff] [blame] | 2997 | * BNX2X_STATE_OPEN and only then stop the Tx. Otherwise bnx2x_tx_int() |
| 2998 | * may restart the Tx from the NAPI context (see bnx2x_tx_int()). |
| 2999 | */ |
| 3000 | bp->state = BNX2X_STATE_CLOSING_WAIT4_HALT; |
| 3001 | smp_mb(); |
| 3002 | |
Ariel Elior | 78c3bcc | 2013-06-20 17:39:08 +0300 | [diff] [blame] | 3003 | /* indicate to VFs that the PF is going down */ |
| 3004 | bnx2x_iov_channel_down(bp); |
| 3005 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3006 | if (CNIC_LOADED(bp)) |
| 3007 | bnx2x_cnic_notify(bp, CNIC_CTL_STOP_CMD); |
| 3008 | |
Vladislav Zolotarov | 9505ee3 | 2011-07-19 01:39:41 +0000 | [diff] [blame] | 3009 | /* Stop Tx */ |
| 3010 | bnx2x_tx_disable(bp); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3011 | netdev_reset_tc(bp->dev); |
Vladislav Zolotarov | 9505ee3 | 2011-07-19 01:39:41 +0000 | [diff] [blame] | 3012 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3013 | bp->rx_mode = BNX2X_RX_MODE_NONE; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3014 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3015 | del_timer_sync(&bp->timer); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3016 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3017 | if (IS_PF(bp)) { |
| 3018 | /* Set ALWAYS_ALIVE bit in shmem */ |
| 3019 | bp->fw_drv_pulse_wr_seq |= DRV_PULSE_ALWAYS_ALIVE; |
| 3020 | bnx2x_drv_pulse(bp); |
| 3021 | bnx2x_stats_handle(bp, STATS_EVENT_STOP); |
| 3022 | bnx2x_save_statistics(bp); |
| 3023 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3024 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3025 | /* wait till consumers catch up with producers in all queues */ |
| 3026 | bnx2x_drain_tx_queues(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3027 | |
Ariel Elior | 9b176b6 | 2013-01-01 05:22:28 +0000 | [diff] [blame] | 3028 | /* if VF indicate to PF this function is going down (PF will delete sp |
| 3029 | * elements and clear initializations |
| 3030 | */ |
| 3031 | if (IS_VF(bp)) |
| 3032 | bnx2x_vfpf_close_vf(bp); |
| 3033 | else if (unload_mode != UNLOAD_RECOVERY) |
| 3034 | /* if this is a normal/close unload need to clean up chip*/ |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 3035 | bnx2x_chip_cleanup(bp, unload_mode, keep_link); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3036 | else { |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 3037 | /* Send the UNLOAD_REQUEST to the MCP */ |
| 3038 | bnx2x_send_unload_req(bp, unload_mode); |
| 3039 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 3040 | /* Prevent transactions to host from the functions on the |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 3041 | * engine that doesn't reset global blocks in case of global |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 3042 | * attention once global blocks are reset and gates are opened |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 3043 | * (the engine which leader will perform the recovery |
| 3044 | * last). |
| 3045 | */ |
| 3046 | if (!CHIP_IS_E1x(bp)) |
| 3047 | bnx2x_pf_disable(bp); |
| 3048 | |
| 3049 | /* Disable HW interrupts, NAPI */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3050 | bnx2x_netif_stop(bp, 1); |
Merav Sicron | 26614ba | 2012-08-27 03:26:19 +0000 | [diff] [blame] | 3051 | /* Delete all NAPI objects */ |
| 3052 | bnx2x_del_all_napi(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3053 | if (CNIC_LOADED(bp)) |
| 3054 | bnx2x_del_all_napi_cnic(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3055 | /* Release IRQs */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 3056 | bnx2x_free_irq(bp); |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 3057 | |
| 3058 | /* Report UNLOAD_DONE to MCP */ |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 3059 | bnx2x_send_unload_done(bp, false); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3060 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3061 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3062 | /* |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 3063 | * At this stage no more interrupts will arrive so we may safely clean |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3064 | * the queueable objects here in case they failed to get cleaned so far. |
| 3065 | */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3066 | if (IS_PF(bp)) |
| 3067 | bnx2x_squeeze_objects(bp); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3068 | |
Vladislav Zolotarov | 7961689 | 2011-07-21 07:58:54 +0000 | [diff] [blame] | 3069 | /* There should be no more pending SP commands at this stage */ |
| 3070 | bp->sp_state = 0; |
| 3071 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3072 | bp->port.pmf = 0; |
| 3073 | |
Dmitry Kravkov | a0d307b | 2013-11-17 08:59:26 +0200 | [diff] [blame] | 3074 | /* clear pending work in rtnl task */ |
| 3075 | bp->sp_rtnl_state = 0; |
| 3076 | smp_mb(); |
| 3077 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3078 | /* Free SKBs, SGEs, TPA pool and driver internals */ |
| 3079 | bnx2x_free_skbs(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3080 | if (CNIC_LOADED(bp)) |
| 3081 | bnx2x_free_skbs_cnic(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 3082 | for_each_rx_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3083 | bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 3084 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3085 | bnx2x_free_fp_mem(bp); |
| 3086 | if (CNIC_LOADED(bp)) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3087 | bnx2x_free_fp_mem_cnic(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3088 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3089 | if (IS_PF(bp)) { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3090 | if (CNIC_LOADED(bp)) |
| 3091 | bnx2x_free_mem_cnic(bp); |
| 3092 | } |
Ariel Elior | b4cddbd | 2013-08-28 01:13:03 +0300 | [diff] [blame] | 3093 | bnx2x_free_mem(bp); |
| 3094 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3095 | bp->state = BNX2X_STATE_CLOSED; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3096 | bp->cnic_loaded = false; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3097 | |
Yuval Mintz | 42f8277 | 2014-03-23 18:12:23 +0200 | [diff] [blame] | 3098 | /* Clear driver version indication in shmem */ |
| 3099 | if (IS_PF(bp)) |
| 3100 | bnx2x_update_mng_version(bp); |
| 3101 | |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 3102 | /* Check if there are pending parity attentions. If there are - set |
| 3103 | * RECOVERY_IN_PROGRESS. |
| 3104 | */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3105 | if (IS_PF(bp) && bnx2x_chk_parity_attn(bp, &global, false)) { |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 3106 | bnx2x_set_reset_in_progress(bp); |
| 3107 | |
| 3108 | /* Set RESET_IS_GLOBAL if needed */ |
| 3109 | if (global) |
| 3110 | bnx2x_set_reset_global(bp); |
| 3111 | } |
| 3112 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3113 | /* The last driver must disable a "close the gate" if there is no |
| 3114 | * parity attention or "process kill" pending. |
| 3115 | */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3116 | if (IS_PF(bp) && |
| 3117 | !bnx2x_clear_pf_load(bp) && |
| 3118 | bnx2x_reset_is_done(bp, BP_PATH(bp))) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3119 | bnx2x_disable_close_the_gate(bp); |
| 3120 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3121 | DP(NETIF_MSG_IFUP, "Ending NIC unload\n"); |
| 3122 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3123 | return 0; |
| 3124 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3125 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3126 | int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state) |
| 3127 | { |
| 3128 | u16 pmcsr; |
| 3129 | |
Dmitry Kravkov | adf5f6a | 2010-10-17 23:10:02 +0000 | [diff] [blame] | 3130 | /* If there is no power capability, silently succeed */ |
Jon Mason | 29ed74c | 2013-09-11 11:22:39 -0700 | [diff] [blame] | 3131 | if (!bp->pdev->pm_cap) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3132 | BNX2X_DEV_INFO("No power capability. Breaking.\n"); |
Dmitry Kravkov | adf5f6a | 2010-10-17 23:10:02 +0000 | [diff] [blame] | 3133 | return 0; |
| 3134 | } |
| 3135 | |
Jon Mason | 29ed74c | 2013-09-11 11:22:39 -0700 | [diff] [blame] | 3136 | pci_read_config_word(bp->pdev, bp->pdev->pm_cap + PCI_PM_CTRL, &pmcsr); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3137 | |
| 3138 | switch (state) { |
| 3139 | case PCI_D0: |
Jon Mason | 29ed74c | 2013-09-11 11:22:39 -0700 | [diff] [blame] | 3140 | pci_write_config_word(bp->pdev, bp->pdev->pm_cap + PCI_PM_CTRL, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3141 | ((pmcsr & ~PCI_PM_CTRL_STATE_MASK) | |
| 3142 | PCI_PM_CTRL_PME_STATUS)); |
| 3143 | |
| 3144 | if (pmcsr & PCI_PM_CTRL_STATE_MASK) |
| 3145 | /* delay required during transition out of D3hot */ |
| 3146 | msleep(20); |
| 3147 | break; |
| 3148 | |
| 3149 | case PCI_D3hot: |
| 3150 | /* If there are other clients above don't |
| 3151 | shut down the power */ |
| 3152 | if (atomic_read(&bp->pdev->enable_cnt) != 1) |
| 3153 | return 0; |
| 3154 | /* Don't shut down the power for emulation and FPGA */ |
| 3155 | if (CHIP_REV_IS_SLOW(bp)) |
| 3156 | return 0; |
| 3157 | |
| 3158 | pmcsr &= ~PCI_PM_CTRL_STATE_MASK; |
| 3159 | pmcsr |= 3; |
| 3160 | |
| 3161 | if (bp->wol) |
| 3162 | pmcsr |= PCI_PM_CTRL_PME_ENABLE; |
| 3163 | |
Jon Mason | 29ed74c | 2013-09-11 11:22:39 -0700 | [diff] [blame] | 3164 | pci_write_config_word(bp->pdev, bp->pdev->pm_cap + PCI_PM_CTRL, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3165 | pmcsr); |
| 3166 | |
| 3167 | /* No more memory access after this point until |
| 3168 | * device is brought back to D0. |
| 3169 | */ |
| 3170 | break; |
| 3171 | |
| 3172 | default: |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3173 | dev_err(&bp->pdev->dev, "Can't support state = %d\n", state); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3174 | return -EINVAL; |
| 3175 | } |
| 3176 | return 0; |
| 3177 | } |
| 3178 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3179 | /* |
| 3180 | * net_device service functions |
| 3181 | */ |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 3182 | static int bnx2x_poll(struct napi_struct *napi, int budget) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3183 | { |
| 3184 | int work_done = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3185 | u8 cos; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3186 | struct bnx2x_fastpath *fp = container_of(napi, struct bnx2x_fastpath, |
| 3187 | napi); |
| 3188 | struct bnx2x *bp = fp->bp; |
| 3189 | |
| 3190 | while (1) { |
| 3191 | #ifdef BNX2X_STOP_ON_ERROR |
| 3192 | if (unlikely(bp->panic)) { |
| 3193 | napi_complete(napi); |
| 3194 | return 0; |
| 3195 | } |
| 3196 | #endif |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3197 | if (!bnx2x_fp_lock_napi(fp)) |
Govindarajulu Varadarajan | 24e579c | 2015-01-25 16:09:23 +0530 | [diff] [blame] | 3198 | return budget; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3199 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3200 | for_each_cos_in_tx_queue(fp, cos) |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3201 | if (bnx2x_tx_queue_has_work(fp->txdata_ptr[cos])) |
| 3202 | bnx2x_tx_int(bp, fp->txdata_ptr[cos]); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3203 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3204 | if (bnx2x_has_rx_work(fp)) { |
| 3205 | work_done += bnx2x_rx_int(fp, budget - work_done); |
| 3206 | |
| 3207 | /* must not complete if we consumed full budget */ |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3208 | if (work_done >= budget) { |
| 3209 | bnx2x_fp_unlock_napi(fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3210 | break; |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3211 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3212 | } |
| 3213 | |
Eric Dumazet | 074975d | 2015-04-14 18:45:00 -0700 | [diff] [blame] | 3214 | bnx2x_fp_unlock_napi(fp); |
| 3215 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3216 | /* Fall out from the NAPI loop if needed */ |
Eric Dumazet | 074975d | 2015-04-14 18:45:00 -0700 | [diff] [blame] | 3217 | if (!(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) { |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3218 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 3219 | /* No need to update SB for FCoE L2 ring as long as |
| 3220 | * it's connected to the default SB and the SB |
| 3221 | * has been updated when NAPI was scheduled. |
| 3222 | */ |
| 3223 | if (IS_FCOE_FP(fp)) { |
| 3224 | napi_complete(napi); |
| 3225 | break; |
| 3226 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3227 | bnx2x_update_fpsb_idx(fp); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3228 | /* bnx2x_has_rx_work() reads the status block, |
| 3229 | * thus we need to ensure that status block indices |
| 3230 | * have been actually read (bnx2x_update_fpsb_idx) |
| 3231 | * prior to this check (bnx2x_has_rx_work) so that |
| 3232 | * we won't write the "newer" value of the status block |
| 3233 | * to IGU (if there was a DMA right after |
| 3234 | * bnx2x_has_rx_work and if there is no rmb, the memory |
| 3235 | * reading (bnx2x_update_fpsb_idx) may be postponed |
| 3236 | * to right before bnx2x_ack_sb). In this case there |
| 3237 | * will never be another interrupt until there is |
| 3238 | * another update of the status block, while there |
| 3239 | * is still unhandled work. |
| 3240 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3241 | rmb(); |
| 3242 | |
| 3243 | if (!(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) { |
| 3244 | napi_complete(napi); |
| 3245 | /* Re-enable interrupts */ |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3246 | DP(NETIF_MSG_RX_STATUS, |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3247 | "Update index to %d\n", fp->fp_hc_idx); |
| 3248 | bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID, |
| 3249 | le16_to_cpu(fp->fp_hc_idx), |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3250 | IGU_INT_ENABLE, 1); |
| 3251 | break; |
| 3252 | } |
| 3253 | } |
| 3254 | } |
| 3255 | |
| 3256 | return work_done; |
| 3257 | } |
| 3258 | |
Cong Wang | e0d1095 | 2013-08-01 11:10:25 +0800 | [diff] [blame] | 3259 | #ifdef CONFIG_NET_RX_BUSY_POLL |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3260 | /* must be called with local_bh_disable()d */ |
| 3261 | int bnx2x_low_latency_recv(struct napi_struct *napi) |
| 3262 | { |
| 3263 | struct bnx2x_fastpath *fp = container_of(napi, struct bnx2x_fastpath, |
| 3264 | napi); |
| 3265 | struct bnx2x *bp = fp->bp; |
| 3266 | int found = 0; |
| 3267 | |
| 3268 | if ((bp->state == BNX2X_STATE_CLOSED) || |
| 3269 | (bp->state == BNX2X_STATE_ERROR) || |
Michal Schmidt | f8dcb5e | 2015-04-28 11:34:23 +0200 | [diff] [blame] | 3270 | (bp->dev->features & (NETIF_F_LRO | NETIF_F_GRO))) |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3271 | return LL_FLUSH_FAILED; |
| 3272 | |
| 3273 | if (!bnx2x_fp_lock_poll(fp)) |
| 3274 | return LL_FLUSH_BUSY; |
| 3275 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 3276 | if (bnx2x_has_rx_work(fp)) |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3277 | found = bnx2x_rx_int(fp, 4); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3278 | |
| 3279 | bnx2x_fp_unlock_poll(fp); |
| 3280 | |
| 3281 | return found; |
| 3282 | } |
| 3283 | #endif |
| 3284 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3285 | /* we split the first BD into headers and data BDs |
| 3286 | * to ease the pain of our fellow microcode engineers |
| 3287 | * we use one mapping for both BDs |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3288 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3289 | static u16 bnx2x_tx_split(struct bnx2x *bp, |
| 3290 | struct bnx2x_fp_txdata *txdata, |
| 3291 | struct sw_tx_bd *tx_buf, |
| 3292 | struct eth_tx_start_bd **tx_bd, u16 hlen, |
| 3293 | u16 bd_prod) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3294 | { |
| 3295 | struct eth_tx_start_bd *h_tx_bd = *tx_bd; |
| 3296 | struct eth_tx_bd *d_tx_bd; |
| 3297 | dma_addr_t mapping; |
| 3298 | int old_len = le16_to_cpu(h_tx_bd->nbytes); |
| 3299 | |
| 3300 | /* first fix first BD */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3301 | h_tx_bd->nbytes = cpu_to_le16(hlen); |
| 3302 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3303 | DP(NETIF_MSG_TX_QUEUED, "TSO split header size is %d (%x:%x)\n", |
| 3304 | h_tx_bd->nbytes, h_tx_bd->addr_hi, h_tx_bd->addr_lo); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3305 | |
| 3306 | /* now get a new data BD |
| 3307 | * (after the pbd) and fill it */ |
| 3308 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3309 | d_tx_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3310 | |
| 3311 | mapping = HILO_U64(le32_to_cpu(h_tx_bd->addr_hi), |
| 3312 | le32_to_cpu(h_tx_bd->addr_lo)) + hlen; |
| 3313 | |
| 3314 | d_tx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 3315 | d_tx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 3316 | d_tx_bd->nbytes = cpu_to_le16(old_len - hlen); |
| 3317 | |
| 3318 | /* this marks the BD as one that has no individual mapping */ |
| 3319 | tx_buf->flags |= BNX2X_TSO_SPLIT_BD; |
| 3320 | |
| 3321 | DP(NETIF_MSG_TX_QUEUED, |
| 3322 | "TSO split data size is %d (%x:%x)\n", |
| 3323 | d_tx_bd->nbytes, d_tx_bd->addr_hi, d_tx_bd->addr_lo); |
| 3324 | |
| 3325 | /* update tx_bd */ |
| 3326 | *tx_bd = (struct eth_tx_start_bd *)d_tx_bd; |
| 3327 | |
| 3328 | return bd_prod; |
| 3329 | } |
| 3330 | |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3331 | #define bswab32(b32) ((__force __le32) swab32((__force __u32) (b32))) |
| 3332 | #define bswab16(b16) ((__force __le16) swab16((__force __u16) (b16))) |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3333 | static __le16 bnx2x_csum_fix(unsigned char *t_header, u16 csum, s8 fix) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3334 | { |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3335 | __sum16 tsum = (__force __sum16) csum; |
| 3336 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3337 | if (fix > 0) |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3338 | tsum = ~csum_fold(csum_sub((__force __wsum) csum, |
| 3339 | csum_partial(t_header - fix, fix, 0))); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3340 | |
| 3341 | else if (fix < 0) |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3342 | tsum = ~csum_fold(csum_add((__force __wsum) csum, |
| 3343 | csum_partial(t_header, -fix, 0))); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3344 | |
Dmitry Kravkov | e2593fc | 2013-02-27 00:04:59 +0000 | [diff] [blame] | 3345 | return bswab16(tsum); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3346 | } |
| 3347 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3348 | static u32 bnx2x_xmit_type(struct bnx2x *bp, struct sk_buff *skb) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3349 | { |
| 3350 | u32 rc; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3351 | __u8 prot = 0; |
| 3352 | __be16 protocol; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3353 | |
| 3354 | if (skb->ip_summed != CHECKSUM_PARTIAL) |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3355 | return XMIT_PLAIN; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3356 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3357 | protocol = vlan_get_protocol(skb); |
| 3358 | if (protocol == htons(ETH_P_IPV6)) { |
| 3359 | rc = XMIT_CSUM_V6; |
| 3360 | prot = ipv6_hdr(skb)->nexthdr; |
| 3361 | } else { |
| 3362 | rc = XMIT_CSUM_V4; |
| 3363 | prot = ip_hdr(skb)->protocol; |
| 3364 | } |
| 3365 | |
| 3366 | if (!CHIP_IS_E1x(bp) && skb->encapsulation) { |
| 3367 | if (inner_ip_hdr(skb)->version == 6) { |
| 3368 | rc |= XMIT_CSUM_ENC_V6; |
| 3369 | if (inner_ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3370 | rc |= XMIT_CSUM_TCP; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3371 | } else { |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3372 | rc |= XMIT_CSUM_ENC_V4; |
| 3373 | if (inner_ip_hdr(skb)->protocol == IPPROTO_TCP) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3374 | rc |= XMIT_CSUM_TCP; |
| 3375 | } |
| 3376 | } |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3377 | if (prot == IPPROTO_TCP) |
| 3378 | rc |= XMIT_CSUM_TCP; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3379 | |
Eric Dumazet | 36a8f39 | 2013-09-29 01:21:32 -0700 | [diff] [blame] | 3380 | if (skb_is_gso(skb)) { |
| 3381 | if (skb_is_gso_v6(skb)) { |
| 3382 | rc |= (XMIT_GSO_V6 | XMIT_CSUM_TCP); |
| 3383 | if (rc & XMIT_CSUM_ENC) |
| 3384 | rc |= XMIT_GSO_ENC_V6; |
| 3385 | } else { |
| 3386 | rc |= (XMIT_GSO_V4 | XMIT_CSUM_TCP); |
| 3387 | if (rc & XMIT_CSUM_ENC) |
| 3388 | rc |= XMIT_GSO_ENC_V4; |
| 3389 | } |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3390 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3391 | |
| 3392 | return rc; |
| 3393 | } |
| 3394 | |
| 3395 | #if (MAX_SKB_FRAGS >= MAX_FETCH_BD - 3) |
| 3396 | /* check if packet requires linearization (packet is too fragmented) |
| 3397 | no need to check fragmentation if page size > 8K (there will be no |
| 3398 | violation to FW restrictions) */ |
| 3399 | static int bnx2x_pkt_req_lin(struct bnx2x *bp, struct sk_buff *skb, |
| 3400 | u32 xmit_type) |
| 3401 | { |
| 3402 | int to_copy = 0; |
| 3403 | int hlen = 0; |
| 3404 | int first_bd_sz = 0; |
| 3405 | |
| 3406 | /* 3 = 1 (for linear data BD) + 2 (for PBD and last BD) */ |
| 3407 | if (skb_shinfo(skb)->nr_frags >= (MAX_FETCH_BD - 3)) { |
| 3408 | |
| 3409 | if (xmit_type & XMIT_GSO) { |
| 3410 | unsigned short lso_mss = skb_shinfo(skb)->gso_size; |
| 3411 | /* Check if LSO packet needs to be copied: |
| 3412 | 3 = 1 (for headers BD) + 2 (for PBD and last BD) */ |
| 3413 | int wnd_size = MAX_FETCH_BD - 3; |
| 3414 | /* Number of windows to check */ |
| 3415 | int num_wnds = skb_shinfo(skb)->nr_frags - wnd_size; |
| 3416 | int wnd_idx = 0; |
| 3417 | int frag_idx = 0; |
| 3418 | u32 wnd_sum = 0; |
| 3419 | |
| 3420 | /* Headers length */ |
Yuval Mintz | 592b9b8 | 2015-06-25 15:19:29 +0300 | [diff] [blame] | 3421 | if (xmit_type & XMIT_GSO_ENC) |
| 3422 | hlen = (int)(skb_inner_transport_header(skb) - |
| 3423 | skb->data) + |
| 3424 | inner_tcp_hdrlen(skb); |
| 3425 | else |
| 3426 | hlen = (int)(skb_transport_header(skb) - |
| 3427 | skb->data) + tcp_hdrlen(skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3428 | |
| 3429 | /* Amount of data (w/o headers) on linear part of SKB*/ |
| 3430 | first_bd_sz = skb_headlen(skb) - hlen; |
| 3431 | |
| 3432 | wnd_sum = first_bd_sz; |
| 3433 | |
| 3434 | /* Calculate the first sum - it's special */ |
| 3435 | for (frag_idx = 0; frag_idx < wnd_size - 1; frag_idx++) |
| 3436 | wnd_sum += |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3437 | skb_frag_size(&skb_shinfo(skb)->frags[frag_idx]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3438 | |
| 3439 | /* If there was data on linear skb data - check it */ |
| 3440 | if (first_bd_sz > 0) { |
| 3441 | if (unlikely(wnd_sum < lso_mss)) { |
| 3442 | to_copy = 1; |
| 3443 | goto exit_lbl; |
| 3444 | } |
| 3445 | |
| 3446 | wnd_sum -= first_bd_sz; |
| 3447 | } |
| 3448 | |
| 3449 | /* Others are easier: run through the frag list and |
| 3450 | check all windows */ |
| 3451 | for (wnd_idx = 0; wnd_idx <= num_wnds; wnd_idx++) { |
| 3452 | wnd_sum += |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3453 | skb_frag_size(&skb_shinfo(skb)->frags[wnd_idx + wnd_size - 1]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3454 | |
| 3455 | if (unlikely(wnd_sum < lso_mss)) { |
| 3456 | to_copy = 1; |
| 3457 | break; |
| 3458 | } |
| 3459 | wnd_sum -= |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3460 | skb_frag_size(&skb_shinfo(skb)->frags[wnd_idx]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3461 | } |
| 3462 | } else { |
| 3463 | /* in non-LSO too fragmented packet should always |
| 3464 | be linearized */ |
| 3465 | to_copy = 1; |
| 3466 | } |
| 3467 | } |
| 3468 | |
| 3469 | exit_lbl: |
| 3470 | if (unlikely(to_copy)) |
| 3471 | DP(NETIF_MSG_TX_QUEUED, |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3472 | "Linearization IS REQUIRED for %s packet. num_frags %d hlen %d first_bd_sz %d\n", |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3473 | (xmit_type & XMIT_GSO) ? "LSO" : "non-LSO", |
| 3474 | skb_shinfo(skb)->nr_frags, hlen, first_bd_sz); |
| 3475 | |
| 3476 | return to_copy; |
| 3477 | } |
| 3478 | #endif |
| 3479 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3480 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3481 | * bnx2x_set_pbd_gso - update PBD in GSO case. |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3482 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3483 | * @skb: packet skb |
| 3484 | * @pbd: parse BD |
| 3485 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3486 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3487 | static void bnx2x_set_pbd_gso(struct sk_buff *skb, |
| 3488 | struct eth_tx_parse_bd_e1x *pbd, |
| 3489 | u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3490 | { |
| 3491 | pbd->lso_mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3492 | pbd->tcp_send_seq = bswab32(tcp_hdr(skb)->seq); |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3493 | pbd->tcp_flags = pbd_tcp_flags(tcp_hdr(skb)); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3494 | |
| 3495 | if (xmit_type & XMIT_GSO_V4) { |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3496 | pbd->ip_id = bswab16(ip_hdr(skb)->id); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3497 | pbd->tcp_pseudo_csum = |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3498 | bswab16(~csum_tcpudp_magic(ip_hdr(skb)->saddr, |
| 3499 | ip_hdr(skb)->daddr, |
| 3500 | 0, IPPROTO_TCP, 0)); |
Yuval Mintz | 057cf65 | 2013-05-19 04:41:01 +0000 | [diff] [blame] | 3501 | } else { |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3502 | pbd->tcp_pseudo_csum = |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3503 | bswab16(~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, |
| 3504 | &ipv6_hdr(skb)->daddr, |
| 3505 | 0, IPPROTO_TCP, 0)); |
Yuval Mintz | 057cf65 | 2013-05-19 04:41:01 +0000 | [diff] [blame] | 3506 | } |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3507 | |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3508 | pbd->global_data |= |
| 3509 | cpu_to_le16(ETH_TX_PARSE_BD_E1X_PSEUDO_CS_WITHOUT_LEN); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3510 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3511 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3512 | /** |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3513 | * bnx2x_set_pbd_csum_enc - update PBD with checksum and return header length |
| 3514 | * |
| 3515 | * @bp: driver handle |
| 3516 | * @skb: packet skb |
| 3517 | * @parsing_data: data to be updated |
| 3518 | * @xmit_type: xmit flags |
| 3519 | * |
| 3520 | * 57712/578xx related, when skb has encapsulation |
| 3521 | */ |
| 3522 | static u8 bnx2x_set_pbd_csum_enc(struct bnx2x *bp, struct sk_buff *skb, |
| 3523 | u32 *parsing_data, u32 xmit_type) |
| 3524 | { |
| 3525 | *parsing_data |= |
| 3526 | ((((u8 *)skb_inner_transport_header(skb) - skb->data) >> 1) << |
| 3527 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) & |
| 3528 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W; |
| 3529 | |
| 3530 | if (xmit_type & XMIT_CSUM_TCP) { |
| 3531 | *parsing_data |= ((inner_tcp_hdrlen(skb) / 4) << |
| 3532 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) & |
| 3533 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW; |
| 3534 | |
| 3535 | return skb_inner_transport_header(skb) + |
| 3536 | inner_tcp_hdrlen(skb) - skb->data; |
| 3537 | } |
| 3538 | |
| 3539 | /* We support checksum offload for TCP and UDP only. |
| 3540 | * No need to pass the UDP header length - it's a constant. |
| 3541 | */ |
| 3542 | return skb_inner_transport_header(skb) + |
| 3543 | sizeof(struct udphdr) - skb->data; |
| 3544 | } |
| 3545 | |
| 3546 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3547 | * bnx2x_set_pbd_csum_e2 - update PBD with checksum and return header length |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3548 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3549 | * @bp: driver handle |
| 3550 | * @skb: packet skb |
| 3551 | * @parsing_data: data to be updated |
| 3552 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3553 | * |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3554 | * 57712/578xx related |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3555 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3556 | static u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb, |
| 3557 | u32 *parsing_data, u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3558 | { |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3559 | *parsing_data |= |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 3560 | ((((u8 *)skb_transport_header(skb) - skb->data) >> 1) << |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3561 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) & |
| 3562 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3563 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3564 | if (xmit_type & XMIT_CSUM_TCP) { |
| 3565 | *parsing_data |= ((tcp_hdrlen(skb) / 4) << |
| 3566 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) & |
| 3567 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3568 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3569 | return skb_transport_header(skb) + tcp_hdrlen(skb) - skb->data; |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 3570 | } |
| 3571 | /* We support checksum offload for TCP and UDP only. |
| 3572 | * No need to pass the UDP header length - it's a constant. |
| 3573 | */ |
| 3574 | return skb_transport_header(skb) + sizeof(struct udphdr) - skb->data; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3575 | } |
| 3576 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3577 | /* set FW indication according to inner or outer protocols if tunneled */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3578 | static void bnx2x_set_sbd_csum(struct bnx2x *bp, struct sk_buff *skb, |
| 3579 | struct eth_tx_start_bd *tx_start_bd, |
| 3580 | u32 xmit_type) |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3581 | { |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3582 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_L4_CSUM; |
| 3583 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3584 | if (xmit_type & (XMIT_CSUM_ENC_V6 | XMIT_CSUM_V6)) |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3585 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_IPV6; |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3586 | |
| 3587 | if (!(xmit_type & XMIT_CSUM_TCP)) |
| 3588 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_IS_UDP; |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3589 | } |
| 3590 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3591 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3592 | * bnx2x_set_pbd_csum - update PBD with checksum and return header length |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3593 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3594 | * @bp: driver handle |
| 3595 | * @skb: packet skb |
| 3596 | * @pbd: parse BD to be updated |
| 3597 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3598 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3599 | static u8 bnx2x_set_pbd_csum(struct bnx2x *bp, struct sk_buff *skb, |
| 3600 | struct eth_tx_parse_bd_e1x *pbd, |
| 3601 | u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3602 | { |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3603 | u8 hlen = (skb_network_header(skb) - skb->data) >> 1; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3604 | |
| 3605 | /* for now NS flag is not used in Linux */ |
| 3606 | pbd->global_data = |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3607 | cpu_to_le16(hlen | |
| 3608 | ((skb->protocol == cpu_to_be16(ETH_P_8021Q)) << |
| 3609 | ETH_TX_PARSE_BD_E1X_LLC_SNAP_EN_SHIFT)); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3610 | |
| 3611 | pbd->ip_hlen_w = (skb_transport_header(skb) - |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3612 | skb_network_header(skb)) >> 1; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3613 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3614 | hlen += pbd->ip_hlen_w; |
| 3615 | |
| 3616 | /* We support checksum offload for TCP and UDP only */ |
| 3617 | if (xmit_type & XMIT_CSUM_TCP) |
| 3618 | hlen += tcp_hdrlen(skb) / 2; |
| 3619 | else |
| 3620 | hlen += sizeof(struct udphdr) / 2; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3621 | |
| 3622 | pbd->total_hlen_w = cpu_to_le16(hlen); |
| 3623 | hlen = hlen*2; |
| 3624 | |
| 3625 | if (xmit_type & XMIT_CSUM_TCP) { |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3626 | pbd->tcp_pseudo_csum = bswab16(tcp_hdr(skb)->check); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3627 | |
| 3628 | } else { |
| 3629 | s8 fix = SKB_CS_OFF(skb); /* signed! */ |
| 3630 | |
| 3631 | DP(NETIF_MSG_TX_QUEUED, |
| 3632 | "hlen %d fix %d csum before fix %x\n", |
| 3633 | le16_to_cpu(pbd->total_hlen_w), fix, SKB_CS(skb)); |
| 3634 | |
| 3635 | /* HW bug: fixup the CSUM */ |
| 3636 | pbd->tcp_pseudo_csum = |
| 3637 | bnx2x_csum_fix(skb_transport_header(skb), |
| 3638 | SKB_CS(skb), fix); |
| 3639 | |
| 3640 | DP(NETIF_MSG_TX_QUEUED, "csum after fix %x\n", |
| 3641 | pbd->tcp_pseudo_csum); |
| 3642 | } |
| 3643 | |
| 3644 | return hlen; |
| 3645 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3646 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3647 | static void bnx2x_update_pbds_gso_enc(struct sk_buff *skb, |
| 3648 | struct eth_tx_parse_bd_e2 *pbd_e2, |
| 3649 | struct eth_tx_parse_2nd_bd *pbd2, |
| 3650 | u16 *global_data, |
| 3651 | u32 xmit_type) |
| 3652 | { |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3653 | u16 hlen_w = 0; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3654 | u8 outerip_off, outerip_len = 0; |
Dmitry Kravkov | e768fb2 | 2013-06-02 23:28:41 +0000 | [diff] [blame] | 3655 | |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3656 | /* from outer IP to transport */ |
| 3657 | hlen_w = (skb_inner_transport_header(skb) - |
| 3658 | skb_network_header(skb)) >> 1; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3659 | |
| 3660 | /* transport len */ |
Dmitry Kravkov | e768fb2 | 2013-06-02 23:28:41 +0000 | [diff] [blame] | 3661 | hlen_w += inner_tcp_hdrlen(skb) >> 1; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3662 | |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3663 | pbd2->fw_ip_hdr_to_payload_w = hlen_w; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3664 | |
Dmitry Kravkov | e768fb2 | 2013-06-02 23:28:41 +0000 | [diff] [blame] | 3665 | /* outer IP header info */ |
| 3666 | if (xmit_type & XMIT_CSUM_V4) { |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3667 | struct iphdr *iph = ip_hdr(skb); |
Dmitry Kravkov | 1b4fc0e | 2013-07-11 15:48:21 +0300 | [diff] [blame] | 3668 | u32 csum = (__force u32)(~iph->check) - |
| 3669 | (__force u32)iph->tot_len - |
| 3670 | (__force u32)iph->frag_off; |
Yuval Mintz | c957d09 | 2013-06-25 08:50:11 +0300 | [diff] [blame] | 3671 | |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 3672 | outerip_len = iph->ihl << 1; |
| 3673 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3674 | pbd2->fw_ip_csum_wo_len_flags_frag = |
Yuval Mintz | c957d09 | 2013-06-25 08:50:11 +0300 | [diff] [blame] | 3675 | bswab16(csum_fold((__force __wsum)csum)); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3676 | } else { |
| 3677 | pbd2->fw_ip_hdr_to_payload_w = |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3678 | hlen_w - ((sizeof(struct ipv6hdr)) >> 1); |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 3679 | pbd_e2->data.tunnel_data.flags |= |
Dmitry Kravkov | 05f8461 | 2014-08-28 16:54:24 +0300 | [diff] [blame] | 3680 | ETH_TUNNEL_DATA_IP_HDR_TYPE_OUTER; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3681 | } |
| 3682 | |
| 3683 | pbd2->tcp_send_seq = bswab32(inner_tcp_hdr(skb)->seq); |
| 3684 | |
| 3685 | pbd2->tcp_flags = pbd_tcp_flags(inner_tcp_hdr(skb)); |
| 3686 | |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 3687 | /* inner IP header info */ |
| 3688 | if (xmit_type & XMIT_CSUM_ENC_V4) { |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3689 | pbd2->hw_ip_id = bswab16(inner_ip_hdr(skb)->id); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3690 | |
| 3691 | pbd_e2->data.tunnel_data.pseudo_csum = |
| 3692 | bswab16(~csum_tcpudp_magic( |
| 3693 | inner_ip_hdr(skb)->saddr, |
| 3694 | inner_ip_hdr(skb)->daddr, |
| 3695 | 0, IPPROTO_TCP, 0)); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3696 | } else { |
| 3697 | pbd_e2->data.tunnel_data.pseudo_csum = |
| 3698 | bswab16(~csum_ipv6_magic( |
| 3699 | &inner_ipv6_hdr(skb)->saddr, |
| 3700 | &inner_ipv6_hdr(skb)->daddr, |
| 3701 | 0, IPPROTO_TCP, 0)); |
| 3702 | } |
| 3703 | |
| 3704 | outerip_off = (skb_network_header(skb) - skb->data) >> 1; |
| 3705 | |
| 3706 | *global_data |= |
| 3707 | outerip_off | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3708 | (outerip_len << |
| 3709 | ETH_TX_PARSE_2ND_BD_IP_HDR_LEN_OUTER_W_SHIFT) | |
| 3710 | ((skb->protocol == cpu_to_be16(ETH_P_8021Q)) << |
| 3711 | ETH_TX_PARSE_2ND_BD_LLC_SNAP_EN_SHIFT); |
Dmitry Kravkov | 65bc0cf | 2013-04-28 08:16:02 +0000 | [diff] [blame] | 3712 | |
| 3713 | if (ip_hdr(skb)->protocol == IPPROTO_UDP) { |
| 3714 | SET_FLAG(*global_data, ETH_TX_PARSE_2ND_BD_TUNNEL_UDP_EXIST, 1); |
| 3715 | pbd2->tunnel_udp_hdr_start_w = skb_transport_offset(skb) >> 1; |
| 3716 | } |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3717 | } |
| 3718 | |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 3719 | static inline void bnx2x_set_ipv6_ext_e2(struct sk_buff *skb, u32 *parsing_data, |
| 3720 | u32 xmit_type) |
| 3721 | { |
| 3722 | struct ipv6hdr *ipv6; |
| 3723 | |
| 3724 | if (!(xmit_type & (XMIT_GSO_ENC_V6 | XMIT_GSO_V6))) |
| 3725 | return; |
| 3726 | |
| 3727 | if (xmit_type & XMIT_GSO_ENC_V6) |
| 3728 | ipv6 = inner_ipv6_hdr(skb); |
| 3729 | else /* XMIT_GSO_V6 */ |
| 3730 | ipv6 = ipv6_hdr(skb); |
| 3731 | |
| 3732 | if (ipv6->nexthdr == NEXTHDR_IPV6) |
| 3733 | *parsing_data |= ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR; |
| 3734 | } |
| 3735 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3736 | /* called with netif_tx_lock |
| 3737 | * bnx2x_tx_int() runs without netif_tx_lock unless it needs to call |
| 3738 | * netif_wake_queue() |
| 3739 | */ |
| 3740 | netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 3741 | { |
| 3742 | struct bnx2x *bp = netdev_priv(dev); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3743 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3744 | struct netdev_queue *txq; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3745 | struct bnx2x_fp_txdata *txdata; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3746 | struct sw_tx_bd *tx_buf; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3747 | struct eth_tx_start_bd *tx_start_bd, *first_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3748 | struct eth_tx_bd *tx_data_bd, *total_pkt_bd = NULL; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3749 | struct eth_tx_parse_bd_e1x *pbd_e1x = NULL; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3750 | struct eth_tx_parse_bd_e2 *pbd_e2 = NULL; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3751 | struct eth_tx_parse_2nd_bd *pbd2 = NULL; |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3752 | u32 pbd_e2_parsing_data = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3753 | u16 pkt_prod, bd_prod; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3754 | int nbd, txq_index; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3755 | dma_addr_t mapping; |
| 3756 | u32 xmit_type = bnx2x_xmit_type(bp, skb); |
| 3757 | int i; |
| 3758 | u8 hlen = 0; |
| 3759 | __le16 pkt_size = 0; |
| 3760 | struct ethhdr *eth; |
| 3761 | u8 mac_type = UNICAST_ADDRESS; |
| 3762 | |
| 3763 | #ifdef BNX2X_STOP_ON_ERROR |
| 3764 | if (unlikely(bp->panic)) |
| 3765 | return NETDEV_TX_BUSY; |
| 3766 | #endif |
| 3767 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3768 | txq_index = skb_get_queue_mapping(skb); |
| 3769 | txq = netdev_get_tx_queue(dev, txq_index); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3770 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3771 | BUG_ON(txq_index >= MAX_ETH_TXQ_IDX(bp) + (CNIC_LOADED(bp) ? 1 : 0)); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3772 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3773 | txdata = &bp->bnx2x_txq[txq_index]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3774 | |
| 3775 | /* enable this debug print to view the transmission queue being used |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3776 | DP(NETIF_MSG_TX_QUEUED, "indices: txq %d, fp %d, txdata %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3777 | txq_index, fp_index, txdata_index); */ |
| 3778 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 3779 | /* enable this debug print to view the transmission details |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3780 | DP(NETIF_MSG_TX_QUEUED, |
| 3781 | "transmitting packet cid %d fp index %d txdata_index %d tx_data ptr %p fp pointer %p\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3782 | txdata->cid, fp_index, txdata_index, txdata, fp); */ |
| 3783 | |
| 3784 | if (unlikely(bnx2x_tx_avail(bp, txdata) < |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 3785 | skb_shinfo(skb)->nr_frags + |
| 3786 | BDS_PER_TX_PKT + |
| 3787 | NEXT_CNT_PER_TX_PKT(MAX_BDS_PER_TX_PKT))) { |
Dmitry Kravkov | 2384d6a | 2012-10-16 01:28:27 +0000 | [diff] [blame] | 3788 | /* Handle special storage cases separately */ |
Dmitry Kravkov | c96bdc0 | 2012-12-02 04:05:48 +0000 | [diff] [blame] | 3789 | if (txdata->tx_ring_size == 0) { |
| 3790 | struct bnx2x_eth_q_stats *q_stats = |
| 3791 | bnx2x_fp_qstats(bp, txdata->parent_fp); |
| 3792 | q_stats->driver_filtered_tx_pkt++; |
| 3793 | dev_kfree_skb(skb); |
| 3794 | return NETDEV_TX_OK; |
| 3795 | } |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 3796 | bnx2x_fp_qstats(bp, txdata->parent_fp)->driver_xoff++; |
| 3797 | netif_tx_stop_queue(txq); |
Dmitry Kravkov | c96bdc0 | 2012-12-02 04:05:48 +0000 | [diff] [blame] | 3798 | BNX2X_ERR("BUG! Tx ring full when queue awake!\n"); |
Dmitry Kravkov | 2384d6a | 2012-10-16 01:28:27 +0000 | [diff] [blame] | 3799 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3800 | return NETDEV_TX_BUSY; |
| 3801 | } |
| 3802 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3803 | DP(NETIF_MSG_TX_QUEUED, |
Yuval Mintz | 04c4673 | 2013-01-23 03:21:46 +0000 | [diff] [blame] | 3804 | "queue[%d]: SKB: summed %x protocol %x protocol(%x,%x) gso type %x xmit_type %x len %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3805 | txq_index, skb->ip_summed, skb->protocol, ipv6_hdr(skb)->nexthdr, |
Yuval Mintz | 04c4673 | 2013-01-23 03:21:46 +0000 | [diff] [blame] | 3806 | ip_hdr(skb)->protocol, skb_shinfo(skb)->gso_type, xmit_type, |
| 3807 | skb->len); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3808 | |
| 3809 | eth = (struct ethhdr *)skb->data; |
| 3810 | |
| 3811 | /* set flag according to packet type (UNICAST_ADDRESS is default)*/ |
| 3812 | if (unlikely(is_multicast_ether_addr(eth->h_dest))) { |
| 3813 | if (is_broadcast_ether_addr(eth->h_dest)) |
| 3814 | mac_type = BROADCAST_ADDRESS; |
| 3815 | else |
| 3816 | mac_type = MULTICAST_ADDRESS; |
| 3817 | } |
| 3818 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3819 | #if (MAX_SKB_FRAGS >= MAX_FETCH_BD - BDS_PER_TX_PKT) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3820 | /* First, check if we need to linearize the skb (due to FW |
| 3821 | restrictions). No need to check fragmentation if page size > 8K |
| 3822 | (there will be no violation to FW restrictions) */ |
| 3823 | if (bnx2x_pkt_req_lin(bp, skb, xmit_type)) { |
| 3824 | /* Statistics of linearization */ |
| 3825 | bp->lin_cnt++; |
| 3826 | if (skb_linearize(skb) != 0) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3827 | DP(NETIF_MSG_TX_QUEUED, |
| 3828 | "SKB linearization failed - silently dropping this SKB\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3829 | dev_kfree_skb_any(skb); |
| 3830 | return NETDEV_TX_OK; |
| 3831 | } |
| 3832 | } |
| 3833 | #endif |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3834 | /* Map skb linear data for DMA */ |
| 3835 | mapping = dma_map_single(&bp->pdev->dev, skb->data, |
| 3836 | skb_headlen(skb), DMA_TO_DEVICE); |
| 3837 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3838 | DP(NETIF_MSG_TX_QUEUED, |
| 3839 | "SKB mapping failed - silently dropping this SKB\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3840 | dev_kfree_skb_any(skb); |
| 3841 | return NETDEV_TX_OK; |
| 3842 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3843 | /* |
| 3844 | Please read carefully. First we use one BD which we mark as start, |
| 3845 | then we have a parsing info BD (used for TSO or xsum), |
| 3846 | and only then we have the rest of the TSO BDs. |
| 3847 | (don't forget to mark the last one as last, |
| 3848 | and to unmap only AFTER you write to the BD ...) |
| 3849 | And above all, all pdb sizes are in words - NOT DWORDS! |
| 3850 | */ |
| 3851 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3852 | /* get current pkt produced now - advance it just before sending packet |
| 3853 | * since mapping of pages may fail and cause packet to be dropped |
| 3854 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3855 | pkt_prod = txdata->tx_pkt_prod; |
| 3856 | bd_prod = TX_BD(txdata->tx_bd_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3857 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3858 | /* get a tx_buf and first BD |
| 3859 | * tx_start_bd may be changed during SPLIT, |
| 3860 | * but first_bd will always stay first |
| 3861 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3862 | tx_buf = &txdata->tx_buf_ring[TX_BD(pkt_prod)]; |
| 3863 | tx_start_bd = &txdata->tx_desc_ring[bd_prod].start_bd; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3864 | first_bd = tx_start_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3865 | |
| 3866 | tx_start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD; |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3867 | |
Michal Kalderon | eeed018 | 2014-08-17 16:47:44 +0300 | [diff] [blame] | 3868 | if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) { |
| 3869 | if (!(bp->flags & TX_TIMESTAMPING_EN)) { |
| 3870 | BNX2X_ERR("Tx timestamping was not enabled, this packet will not be timestamped\n"); |
| 3871 | } else if (bp->ptp_tx_skb) { |
| 3872 | BNX2X_ERR("The device supports only a single outstanding packet to timestamp, this packet will not be timestamped\n"); |
| 3873 | } else { |
| 3874 | skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; |
| 3875 | /* schedule check for Tx timestamp */ |
| 3876 | bp->ptp_tx_skb = skb_get(skb); |
| 3877 | bp->ptp_tx_start = jiffies; |
| 3878 | schedule_work(&bp->ptp_task); |
| 3879 | } |
| 3880 | } |
| 3881 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3882 | /* header nbd: indirectly zero other flags! */ |
| 3883 | tx_start_bd->general_data = 1 << ETH_TX_START_BD_HDR_NBDS_SHIFT; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3884 | |
| 3885 | /* remember the first BD of the packet */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3886 | tx_buf->first_bd = txdata->tx_bd_prod; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3887 | tx_buf->skb = skb; |
| 3888 | tx_buf->flags = 0; |
| 3889 | |
| 3890 | DP(NETIF_MSG_TX_QUEUED, |
| 3891 | "sending pkt %u @%p next_idx %u bd %u @%p\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3892 | pkt_prod, tx_buf, txdata->tx_pkt_prod, bd_prod, tx_start_bd); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3893 | |
Jiri Pirko | df8a39d | 2015-01-13 17:13:44 +0100 | [diff] [blame] | 3894 | if (skb_vlan_tag_present(skb)) { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3895 | tx_start_bd->vlan_or_ethertype = |
Jiri Pirko | df8a39d | 2015-01-13 17:13:44 +0100 | [diff] [blame] | 3896 | cpu_to_le16(skb_vlan_tag_get(skb)); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3897 | tx_start_bd->bd_flags.as_bitfield |= |
| 3898 | (X_ETH_OUTBAND_VLAN << ETH_TX_BD_FLAGS_VLAN_MODE_SHIFT); |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3899 | } else { |
| 3900 | /* when transmitting in a vf, start bd must hold the ethertype |
| 3901 | * for fw to enforce it |
| 3902 | */ |
Yuval Mintz | ea36475a | 2014-08-25 17:48:30 +0300 | [diff] [blame] | 3903 | #ifndef BNX2X_STOP_ON_ERROR |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3904 | if (IS_VF(bp)) |
Yuval Mintz | ea36475a | 2014-08-25 17:48:30 +0300 | [diff] [blame] | 3905 | #endif |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3906 | tx_start_bd->vlan_or_ethertype = |
| 3907 | cpu_to_le16(ntohs(eth->h_proto)); |
Yuval Mintz | ea36475a | 2014-08-25 17:48:30 +0300 | [diff] [blame] | 3908 | #ifndef BNX2X_STOP_ON_ERROR |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3909 | else |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3910 | /* used by FW for packet accounting */ |
| 3911 | tx_start_bd->vlan_or_ethertype = cpu_to_le16(pkt_prod); |
Yuval Mintz | ea36475a | 2014-08-25 17:48:30 +0300 | [diff] [blame] | 3912 | #endif |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3913 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3914 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3915 | nbd = 2; /* start_bd + pbd + frags (updated when pages are mapped) */ |
| 3916 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3917 | /* turn on parsing and get a BD */ |
| 3918 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3919 | |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3920 | if (xmit_type & XMIT_CSUM) |
| 3921 | bnx2x_set_sbd_csum(bp, skb, tx_start_bd, xmit_type); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3922 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3923 | if (!CHIP_IS_E1x(bp)) { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3924 | pbd_e2 = &txdata->tx_desc_ring[bd_prod].parse_bd_e2; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3925 | memset(pbd_e2, 0, sizeof(struct eth_tx_parse_bd_e2)); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3926 | |
| 3927 | if (xmit_type & XMIT_CSUM_ENC) { |
| 3928 | u16 global_data = 0; |
| 3929 | |
| 3930 | /* Set PBD in enc checksum offload case */ |
| 3931 | hlen = bnx2x_set_pbd_csum_enc(bp, skb, |
| 3932 | &pbd_e2_parsing_data, |
| 3933 | xmit_type); |
| 3934 | |
| 3935 | /* turn on 2nd parsing and get a BD */ |
| 3936 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
| 3937 | |
| 3938 | pbd2 = &txdata->tx_desc_ring[bd_prod].parse_2nd_bd; |
| 3939 | |
| 3940 | memset(pbd2, 0, sizeof(*pbd2)); |
| 3941 | |
| 3942 | pbd_e2->data.tunnel_data.ip_hdr_start_inner_w = |
| 3943 | (skb_inner_network_header(skb) - |
| 3944 | skb->data) >> 1; |
| 3945 | |
| 3946 | if (xmit_type & XMIT_GSO_ENC) |
| 3947 | bnx2x_update_pbds_gso_enc(skb, pbd_e2, pbd2, |
| 3948 | &global_data, |
| 3949 | xmit_type); |
| 3950 | |
| 3951 | pbd2->global_data = cpu_to_le16(global_data); |
| 3952 | |
| 3953 | /* add addition parse BD indication to start BD */ |
| 3954 | SET_FLAG(tx_start_bd->general_data, |
| 3955 | ETH_TX_START_BD_PARSE_NBDS, 1); |
| 3956 | /* set encapsulation flag in start BD */ |
| 3957 | SET_FLAG(tx_start_bd->general_data, |
| 3958 | ETH_TX_START_BD_TUNNEL_EXIST, 1); |
Dmitry Kravkov | fe26566d | 2014-07-24 18:54:47 +0300 | [diff] [blame] | 3959 | |
| 3960 | tx_buf->flags |= BNX2X_HAS_SECOND_PBD; |
| 3961 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3962 | nbd++; |
| 3963 | } else if (xmit_type & XMIT_CSUM) { |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3964 | /* Set PBD in checksum offload case w/o encapsulation */ |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3965 | hlen = bnx2x_set_pbd_csum_e2(bp, skb, |
| 3966 | &pbd_e2_parsing_data, |
| 3967 | xmit_type); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3968 | } |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3969 | |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 3970 | bnx2x_set_ipv6_ext_e2(skb, &pbd_e2_parsing_data, xmit_type); |
Yuval Mintz | babe723 | 2014-02-27 15:42:26 +0200 | [diff] [blame] | 3971 | /* Add the macs to the parsing BD if this is a vf or if |
| 3972 | * Tx Switching is enabled. |
| 3973 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3974 | if (IS_VF(bp)) { |
| 3975 | /* override GRE parameters in BD */ |
| 3976 | bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.src_hi, |
| 3977 | &pbd_e2->data.mac_addr.src_mid, |
| 3978 | &pbd_e2->data.mac_addr.src_lo, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3979 | eth->h_source); |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3980 | |
| 3981 | bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.dst_hi, |
| 3982 | &pbd_e2->data.mac_addr.dst_mid, |
| 3983 | &pbd_e2->data.mac_addr.dst_lo, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3984 | eth->h_dest); |
Yuval Mintz | ea36475a | 2014-08-25 17:48:30 +0300 | [diff] [blame] | 3985 | } else { |
| 3986 | if (bp->flags & TX_SWITCHING) |
| 3987 | bnx2x_set_fw_mac_addr( |
| 3988 | &pbd_e2->data.mac_addr.dst_hi, |
| 3989 | &pbd_e2->data.mac_addr.dst_mid, |
| 3990 | &pbd_e2->data.mac_addr.dst_lo, |
| 3991 | eth->h_dest); |
| 3992 | #ifdef BNX2X_STOP_ON_ERROR |
| 3993 | /* Enforce security is always set in Stop on Error - |
| 3994 | * source mac should be present in the parsing BD |
| 3995 | */ |
| 3996 | bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.src_hi, |
| 3997 | &pbd_e2->data.mac_addr.src_mid, |
| 3998 | &pbd_e2->data.mac_addr.src_lo, |
| 3999 | eth->h_source); |
| 4000 | #endif |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4001 | } |
Yuval Mintz | 96bed4b | 2012-10-01 03:46:19 +0000 | [diff] [blame] | 4002 | |
| 4003 | SET_FLAG(pbd_e2_parsing_data, |
| 4004 | ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE, mac_type); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 4005 | } else { |
Yuval Mintz | 96bed4b | 2012-10-01 03:46:19 +0000 | [diff] [blame] | 4006 | u16 global_data = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4007 | pbd_e1x = &txdata->tx_desc_ring[bd_prod].parse_bd_e1x; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 4008 | memset(pbd_e1x, 0, sizeof(struct eth_tx_parse_bd_e1x)); |
| 4009 | /* Set PBD in checksum offload case */ |
| 4010 | if (xmit_type & XMIT_CSUM) |
| 4011 | hlen = bnx2x_set_pbd_csum(bp, skb, pbd_e1x, xmit_type); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4012 | |
Yuval Mintz | 96bed4b | 2012-10-01 03:46:19 +0000 | [diff] [blame] | 4013 | SET_FLAG(global_data, |
| 4014 | ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE, mac_type); |
| 4015 | pbd_e1x->global_data |= cpu_to_le16(global_data); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4016 | } |
| 4017 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 4018 | /* Setup the data pointer of the first BD of the packet */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4019 | tx_start_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 4020 | tx_start_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4021 | tx_start_bd->nbytes = cpu_to_le16(skb_headlen(skb)); |
| 4022 | pkt_size = tx_start_bd->nbytes; |
| 4023 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4024 | DP(NETIF_MSG_TX_QUEUED, |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 4025 | "first bd @%p addr (%x:%x) nbytes %d flags %x vlan %x\n", |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4026 | tx_start_bd, tx_start_bd->addr_hi, tx_start_bd->addr_lo, |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 4027 | le16_to_cpu(tx_start_bd->nbytes), |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4028 | tx_start_bd->bd_flags.as_bitfield, |
| 4029 | le16_to_cpu(tx_start_bd->vlan_or_ethertype)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4030 | |
| 4031 | if (xmit_type & XMIT_GSO) { |
| 4032 | |
| 4033 | DP(NETIF_MSG_TX_QUEUED, |
| 4034 | "TSO packet len %d hlen %d total len %d tso size %d\n", |
| 4035 | skb->len, hlen, skb_headlen(skb), |
| 4036 | skb_shinfo(skb)->gso_size); |
| 4037 | |
| 4038 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_SW_LSO; |
| 4039 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 4040 | if (unlikely(skb_headlen(skb) > hlen)) { |
| 4041 | nbd++; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4042 | bd_prod = bnx2x_tx_split(bp, txdata, tx_buf, |
| 4043 | &tx_start_bd, hlen, |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 4044 | bd_prod); |
| 4045 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4046 | if (!CHIP_IS_E1x(bp)) |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 4047 | pbd_e2_parsing_data |= |
| 4048 | (skb_shinfo(skb)->gso_size << |
| 4049 | ETH_TX_PARSE_BD_E2_LSO_MSS_SHIFT) & |
| 4050 | ETH_TX_PARSE_BD_E2_LSO_MSS; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 4051 | else |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 4052 | bnx2x_set_pbd_gso(skb, pbd_e1x, xmit_type); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4053 | } |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 4054 | |
| 4055 | /* Set the PBD's parsing_data field if not zero |
| 4056 | * (for the chips newer than 57711). |
| 4057 | */ |
| 4058 | if (pbd_e2_parsing_data) |
| 4059 | pbd_e2->parsing_data = cpu_to_le32(pbd_e2_parsing_data); |
| 4060 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4061 | tx_data_bd = (struct eth_tx_bd *)tx_start_bd; |
| 4062 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 4063 | /* Handle fragmented skb */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4064 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| 4065 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
| 4066 | |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 4067 | mapping = skb_frag_dma_map(&bp->pdev->dev, frag, 0, |
| 4068 | skb_frag_size(frag), DMA_TO_DEVICE); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4069 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 4070 | unsigned int pkts_compl = 0, bytes_compl = 0; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4071 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4072 | DP(NETIF_MSG_TX_QUEUED, |
| 4073 | "Unable to map page - dropping packet...\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4074 | |
| 4075 | /* we need unmap all buffers already mapped |
| 4076 | * for this SKB; |
| 4077 | * first_bd->nbd need to be properly updated |
| 4078 | * before call to bnx2x_free_tx_pkt |
| 4079 | */ |
| 4080 | first_bd->nbd = cpu_to_le16(nbd); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4081 | bnx2x_free_tx_pkt(bp, txdata, |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 4082 | TX_BD(txdata->tx_pkt_prod), |
| 4083 | &pkts_compl, &bytes_compl); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4084 | return NETDEV_TX_OK; |
| 4085 | } |
| 4086 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4087 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4088 | tx_data_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4089 | if (total_pkt_bd == NULL) |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4090 | total_pkt_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4091 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4092 | tx_data_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 4093 | tx_data_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 4094 | tx_data_bd->nbytes = cpu_to_le16(skb_frag_size(frag)); |
| 4095 | le16_add_cpu(&pkt_size, skb_frag_size(frag)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4096 | nbd++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4097 | |
| 4098 | DP(NETIF_MSG_TX_QUEUED, |
| 4099 | "frag %d bd @%p addr (%x:%x) nbytes %d\n", |
| 4100 | i, tx_data_bd, tx_data_bd->addr_hi, tx_data_bd->addr_lo, |
| 4101 | le16_to_cpu(tx_data_bd->nbytes)); |
| 4102 | } |
| 4103 | |
| 4104 | DP(NETIF_MSG_TX_QUEUED, "last bd @%p\n", tx_data_bd); |
| 4105 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4106 | /* update with actual num BDs */ |
| 4107 | first_bd->nbd = cpu_to_le16(nbd); |
| 4108 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4109 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
| 4110 | |
| 4111 | /* now send a tx doorbell, counting the next BD |
| 4112 | * if the packet contains or ends with it |
| 4113 | */ |
| 4114 | if (TX_BD_POFF(bd_prod) < nbd) |
| 4115 | nbd++; |
| 4116 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4117 | /* total_pkt_bytes should be set on the first data BD if |
| 4118 | * it's not an LSO packet and there is more than one |
| 4119 | * data BD. In this case pkt_size is limited by an MTU value. |
| 4120 | * However we prefer to set it for an LSO packet (while we don't |
| 4121 | * have to) in order to save some CPU cycles in a none-LSO |
| 4122 | * case, when we much more care about them. |
| 4123 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4124 | if (total_pkt_bd != NULL) |
| 4125 | total_pkt_bd->total_pkt_bytes = pkt_size; |
| 4126 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4127 | if (pbd_e1x) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4128 | DP(NETIF_MSG_TX_QUEUED, |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4129 | "PBD (E1X) @%p ip_data %x ip_hlen %u ip_id %u lso_mss %u tcp_flags %x xsum %x seq %u hlen %u\n", |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4130 | pbd_e1x, pbd_e1x->global_data, pbd_e1x->ip_hlen_w, |
| 4131 | pbd_e1x->ip_id, pbd_e1x->lso_mss, pbd_e1x->tcp_flags, |
| 4132 | pbd_e1x->tcp_pseudo_csum, pbd_e1x->tcp_send_seq, |
| 4133 | le16_to_cpu(pbd_e1x->total_hlen_w)); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 4134 | if (pbd_e2) |
| 4135 | DP(NETIF_MSG_TX_QUEUED, |
| 4136 | "PBD (E2) @%p dst %x %x %x src %x %x %x parsing_data %x\n", |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 4137 | pbd_e2, |
| 4138 | pbd_e2->data.mac_addr.dst_hi, |
| 4139 | pbd_e2->data.mac_addr.dst_mid, |
| 4140 | pbd_e2->data.mac_addr.dst_lo, |
| 4141 | pbd_e2->data.mac_addr.src_hi, |
| 4142 | pbd_e2->data.mac_addr.src_mid, |
| 4143 | pbd_e2->data.mac_addr.src_lo, |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 4144 | pbd_e2->parsing_data); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4145 | DP(NETIF_MSG_TX_QUEUED, "doorbell: nbd %d bd %u\n", nbd, bd_prod); |
| 4146 | |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 4147 | netdev_tx_sent_queue(txq, skb->len); |
| 4148 | |
Willem de Bruijn | 8373c57 | 2012-04-27 09:04:06 +0000 | [diff] [blame] | 4149 | skb_tx_timestamp(skb); |
| 4150 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4151 | txdata->tx_pkt_prod++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4152 | /* |
| 4153 | * Make sure that the BD data is updated before updating the producer |
| 4154 | * since FW might read the BD right after the producer is updated. |
| 4155 | * This is only applicable for weak-ordered memory model archs such |
| 4156 | * as IA-64. The following barrier is also mandatory since FW will |
| 4157 | * assumes packets must have BDs. |
| 4158 | */ |
| 4159 | wmb(); |
| 4160 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4161 | txdata->tx_db.data.prod += nbd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4162 | barrier(); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 4163 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4164 | DOORBELL(bp, txdata->cid, txdata->tx_db.raw); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4165 | |
| 4166 | mmiowb(); |
| 4167 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4168 | txdata->tx_bd_prod += nbd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4169 | |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 4170 | if (unlikely(bnx2x_tx_avail(bp, txdata) < MAX_DESC_PER_TX_PKT)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4171 | netif_tx_stop_queue(txq); |
| 4172 | |
| 4173 | /* paired memory barrier is in bnx2x_tx_int(), we have to keep |
| 4174 | * ordering of set_bit() in netif_tx_stop_queue() and read of |
| 4175 | * fp->bd_tx_cons */ |
| 4176 | smp_mb(); |
| 4177 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4178 | bnx2x_fp_qstats(bp, txdata->parent_fp)->driver_xoff++; |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 4179 | if (bnx2x_tx_avail(bp, txdata) >= MAX_DESC_PER_TX_PKT) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4180 | netif_tx_wake_queue(txq); |
| 4181 | } |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4182 | txdata->tx_pkt++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4183 | |
| 4184 | return NETDEV_TX_OK; |
| 4185 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 4186 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4187 | /** |
| 4188 | * bnx2x_setup_tc - routine to configure net_device for multi tc |
| 4189 | * |
| 4190 | * @netdev: net device to configure |
| 4191 | * @tc: number of traffic classes to enable |
| 4192 | * |
| 4193 | * callback connected to the ndo_setup_tc function pointer |
| 4194 | */ |
| 4195 | int bnx2x_setup_tc(struct net_device *dev, u8 num_tc) |
| 4196 | { |
| 4197 | int cos, prio, count, offset; |
| 4198 | struct bnx2x *bp = netdev_priv(dev); |
| 4199 | |
| 4200 | /* setup tc must be called under rtnl lock */ |
| 4201 | ASSERT_RTNL(); |
| 4202 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 4203 | /* no traffic classes requested. Aborting */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4204 | if (!num_tc) { |
| 4205 | netdev_reset_tc(dev); |
| 4206 | return 0; |
| 4207 | } |
| 4208 | |
| 4209 | /* requested to support too many traffic classes */ |
| 4210 | if (num_tc > bp->max_cos) { |
Yuval Mintz | 6bf07b8 | 2013-06-02 00:06:20 +0000 | [diff] [blame] | 4211 | BNX2X_ERR("support for too many traffic classes requested: %d. Max supported is %d\n", |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4212 | num_tc, bp->max_cos); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4213 | return -EINVAL; |
| 4214 | } |
| 4215 | |
| 4216 | /* declare amount of supported traffic classes */ |
| 4217 | if (netdev_set_num_tc(dev, num_tc)) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4218 | BNX2X_ERR("failed to declare %d traffic classes\n", num_tc); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4219 | return -EINVAL; |
| 4220 | } |
| 4221 | |
| 4222 | /* configure priority to traffic class mapping */ |
| 4223 | for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) { |
| 4224 | netdev_set_prio_tc_map(dev, prio, bp->prio_to_cos[prio]); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4225 | DP(BNX2X_MSG_SP | NETIF_MSG_IFUP, |
| 4226 | "mapping priority %d to tc %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4227 | prio, bp->prio_to_cos[prio]); |
| 4228 | } |
| 4229 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 4230 | /* Use this configuration to differentiate tc0 from other COSes |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4231 | This can be used for ets or pfc, and save the effort of setting |
| 4232 | up a multio class queue disc or negotiating DCBX with a switch |
| 4233 | netdev_set_prio_tc_map(dev, 0, 0); |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 4234 | DP(BNX2X_MSG_SP, "mapping priority %d to tc %d\n", 0, 0); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4235 | for (prio = 1; prio < 16; prio++) { |
| 4236 | netdev_set_prio_tc_map(dev, prio, 1); |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 4237 | DP(BNX2X_MSG_SP, "mapping priority %d to tc %d\n", prio, 1); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4238 | } */ |
| 4239 | |
| 4240 | /* configure traffic class to transmission queue mapping */ |
| 4241 | for (cos = 0; cos < bp->max_cos; cos++) { |
| 4242 | count = BNX2X_NUM_ETH_QUEUES(bp); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4243 | offset = cos * BNX2X_NUM_NON_CNIC_QUEUES(bp); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4244 | netdev_set_tc_queue(dev, cos, count, offset); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4245 | DP(BNX2X_MSG_SP | NETIF_MSG_IFUP, |
| 4246 | "mapping tc %d to offset %d count %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4247 | cos, offset, count); |
| 4248 | } |
| 4249 | |
| 4250 | return 0; |
| 4251 | } |
| 4252 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4253 | /* called with rtnl_lock */ |
| 4254 | int bnx2x_change_mac_addr(struct net_device *dev, void *p) |
| 4255 | { |
| 4256 | struct sockaddr *addr = p; |
| 4257 | struct bnx2x *bp = netdev_priv(dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4258 | int rc = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4259 | |
Dmitry Kravkov | 2e98ffc | 2014-09-17 16:24:36 +0300 | [diff] [blame] | 4260 | if (!is_valid_ether_addr(addr->sa_data)) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4261 | BNX2X_ERR("Requested MAC address is not valid\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4262 | return -EINVAL; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4263 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4264 | |
Dmitry Kravkov | 2e98ffc | 2014-09-17 16:24:36 +0300 | [diff] [blame] | 4265 | if (IS_MF_STORAGE_ONLY(bp)) { |
| 4266 | BNX2X_ERR("Can't change address on STORAGE ONLY function\n"); |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 4267 | return -EINVAL; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4268 | } |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 4269 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4270 | if (netif_running(dev)) { |
| 4271 | rc = bnx2x_set_eth_mac(bp, false); |
| 4272 | if (rc) |
| 4273 | return rc; |
| 4274 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4275 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4276 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
| 4277 | |
| 4278 | if (netif_running(dev)) |
| 4279 | rc = bnx2x_set_eth_mac(bp, true); |
| 4280 | |
| 4281 | return rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4282 | } |
| 4283 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4284 | static void bnx2x_free_fp_mem_at(struct bnx2x *bp, int fp_index) |
| 4285 | { |
| 4286 | union host_hc_status_block *sb = &bnx2x_fp(bp, fp_index, status_blk); |
| 4287 | struct bnx2x_fastpath *fp = &bp->fp[fp_index]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4288 | u8 cos; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4289 | |
| 4290 | /* Common */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4291 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4292 | if (IS_FCOE_IDX(fp_index)) { |
| 4293 | memset(sb, 0, sizeof(union host_hc_status_block)); |
| 4294 | fp->status_blk_mapping = 0; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4295 | } else { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4296 | /* status blocks */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4297 | if (!CHIP_IS_E1x(bp)) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4298 | BNX2X_PCI_FREE(sb->e2_sb, |
| 4299 | bnx2x_fp(bp, fp_index, |
| 4300 | status_blk_mapping), |
| 4301 | sizeof(struct host_hc_status_block_e2)); |
| 4302 | else |
| 4303 | BNX2X_PCI_FREE(sb->e1x_sb, |
| 4304 | bnx2x_fp(bp, fp_index, |
| 4305 | status_blk_mapping), |
| 4306 | sizeof(struct host_hc_status_block_e1x)); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4307 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4308 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4309 | /* Rx */ |
| 4310 | if (!skip_rx_queue(bp, fp_index)) { |
| 4311 | bnx2x_free_rx_bds(fp); |
| 4312 | |
| 4313 | /* fastpath rx rings: rx_buf rx_desc rx_comp */ |
| 4314 | BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_buf_ring)); |
| 4315 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_desc_ring), |
| 4316 | bnx2x_fp(bp, fp_index, rx_desc_mapping), |
| 4317 | sizeof(struct eth_rx_bd) * NUM_RX_BD); |
| 4318 | |
| 4319 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_comp_ring), |
| 4320 | bnx2x_fp(bp, fp_index, rx_comp_mapping), |
| 4321 | sizeof(struct eth_fast_path_rx_cqe) * |
| 4322 | NUM_RCQ_BD); |
| 4323 | |
| 4324 | /* SGE ring */ |
| 4325 | BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_page_ring)); |
| 4326 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_sge_ring), |
| 4327 | bnx2x_fp(bp, fp_index, rx_sge_mapping), |
| 4328 | BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); |
| 4329 | } |
| 4330 | |
| 4331 | /* Tx */ |
| 4332 | if (!skip_tx_queue(bp, fp_index)) { |
| 4333 | /* fastpath tx rings: tx_buf tx_desc */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4334 | for_each_cos_in_tx_queue(fp, cos) { |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4335 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4336 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4337 | DP(NETIF_MSG_IFDOWN, |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 4338 | "freeing tx memory of fp %d cos %d cid %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4339 | fp_index, cos, txdata->cid); |
| 4340 | |
| 4341 | BNX2X_FREE(txdata->tx_buf_ring); |
| 4342 | BNX2X_PCI_FREE(txdata->tx_desc_ring, |
| 4343 | txdata->tx_desc_mapping, |
| 4344 | sizeof(union eth_tx_bd_types) * NUM_TX_BD); |
| 4345 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4346 | } |
| 4347 | /* end of fastpath */ |
| 4348 | } |
| 4349 | |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 4350 | static void bnx2x_free_fp_mem_cnic(struct bnx2x *bp) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4351 | { |
| 4352 | int i; |
| 4353 | for_each_cnic_queue(bp, i) |
| 4354 | bnx2x_free_fp_mem_at(bp, i); |
| 4355 | } |
| 4356 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4357 | void bnx2x_free_fp_mem(struct bnx2x *bp) |
| 4358 | { |
| 4359 | int i; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4360 | for_each_eth_queue(bp, i) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4361 | bnx2x_free_fp_mem_at(bp, i); |
| 4362 | } |
| 4363 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4364 | static void set_sb_shortcuts(struct bnx2x *bp, int index) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4365 | { |
| 4366 | union host_hc_status_block status_blk = bnx2x_fp(bp, index, status_blk); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4367 | if (!CHIP_IS_E1x(bp)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4368 | bnx2x_fp(bp, index, sb_index_values) = |
| 4369 | (__le16 *)status_blk.e2_sb->sb.index_values; |
| 4370 | bnx2x_fp(bp, index, sb_running_index) = |
| 4371 | (__le16 *)status_blk.e2_sb->sb.running_index; |
| 4372 | } else { |
| 4373 | bnx2x_fp(bp, index, sb_index_values) = |
| 4374 | (__le16 *)status_blk.e1x_sb->sb.index_values; |
| 4375 | bnx2x_fp(bp, index, sb_running_index) = |
| 4376 | (__le16 *)status_blk.e1x_sb->sb.running_index; |
| 4377 | } |
| 4378 | } |
| 4379 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4380 | /* Returns the number of actually allocated BDs */ |
| 4381 | static int bnx2x_alloc_rx_bds(struct bnx2x_fastpath *fp, |
| 4382 | int rx_ring_size) |
| 4383 | { |
| 4384 | struct bnx2x *bp = fp->bp; |
| 4385 | u16 ring_prod, cqe_ring_prod; |
| 4386 | int i, failure_cnt = 0; |
| 4387 | |
| 4388 | fp->rx_comp_cons = 0; |
| 4389 | cqe_ring_prod = ring_prod = 0; |
| 4390 | |
| 4391 | /* This routine is called only during fo init so |
| 4392 | * fp->eth_q_stats.rx_skb_alloc_failed = 0 |
| 4393 | */ |
| 4394 | for (i = 0; i < rx_ring_size; i++) { |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 4395 | if (bnx2x_alloc_rx_data(bp, fp, ring_prod, GFP_KERNEL) < 0) { |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4396 | failure_cnt++; |
| 4397 | continue; |
| 4398 | } |
| 4399 | ring_prod = NEXT_RX_IDX(ring_prod); |
| 4400 | cqe_ring_prod = NEXT_RCQ_IDX(cqe_ring_prod); |
| 4401 | WARN_ON(ring_prod <= (i - failure_cnt)); |
| 4402 | } |
| 4403 | |
| 4404 | if (failure_cnt) |
| 4405 | BNX2X_ERR("was only able to allocate %d rx skbs on queue[%d]\n", |
| 4406 | i - failure_cnt, fp->index); |
| 4407 | |
| 4408 | fp->rx_bd_prod = ring_prod; |
| 4409 | /* Limit the CQE producer by the CQE ring size */ |
| 4410 | fp->rx_comp_prod = min_t(u16, NUM_RCQ_RINGS*RCQ_DESC_CNT, |
| 4411 | cqe_ring_prod); |
| 4412 | fp->rx_pkt = fp->rx_calls = 0; |
| 4413 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4414 | bnx2x_fp_stats(bp, fp)->eth_q_stats.rx_skb_alloc_failed += failure_cnt; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4415 | |
| 4416 | return i - failure_cnt; |
| 4417 | } |
| 4418 | |
| 4419 | static void bnx2x_set_next_page_rx_cq(struct bnx2x_fastpath *fp) |
| 4420 | { |
| 4421 | int i; |
| 4422 | |
| 4423 | for (i = 1; i <= NUM_RCQ_RINGS; i++) { |
| 4424 | struct eth_rx_cqe_next_page *nextpg; |
| 4425 | |
| 4426 | nextpg = (struct eth_rx_cqe_next_page *) |
| 4427 | &fp->rx_comp_ring[RCQ_DESC_CNT * i - 1]; |
| 4428 | nextpg->addr_hi = |
| 4429 | cpu_to_le32(U64_HI(fp->rx_comp_mapping + |
| 4430 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); |
| 4431 | nextpg->addr_lo = |
| 4432 | cpu_to_le32(U64_LO(fp->rx_comp_mapping + |
| 4433 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); |
| 4434 | } |
| 4435 | } |
| 4436 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4437 | static int bnx2x_alloc_fp_mem_at(struct bnx2x *bp, int index) |
| 4438 | { |
| 4439 | union host_hc_status_block *sb; |
| 4440 | struct bnx2x_fastpath *fp = &bp->fp[index]; |
| 4441 | int ring_size = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4442 | u8 cos; |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4443 | int rx_ring_size = 0; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4444 | |
Dmitry Kravkov | 2e98ffc | 2014-09-17 16:24:36 +0300 | [diff] [blame] | 4445 | if (!bp->rx_ring_size && IS_MF_STORAGE_ONLY(bp)) { |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 4446 | rx_ring_size = MIN_RX_SIZE_NONTPA; |
| 4447 | bp->rx_ring_size = rx_ring_size; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4448 | } else if (!bp->rx_ring_size) { |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4449 | rx_ring_size = MAX_RX_AVAIL/BNX2X_NUM_RX_QUEUES(bp); |
| 4450 | |
Yuval Mintz | 065f8b9 | 2012-10-03 04:22:59 +0000 | [diff] [blame] | 4451 | if (CHIP_IS_E3(bp)) { |
| 4452 | u32 cfg = SHMEM_RD(bp, |
| 4453 | dev_info.port_hw_config[BP_PORT(bp)]. |
| 4454 | default_cfg); |
| 4455 | |
| 4456 | /* Decrease ring size for 1G functions */ |
| 4457 | if ((cfg & PORT_HW_CFG_NET_SERDES_IF_MASK) == |
| 4458 | PORT_HW_CFG_NET_SERDES_IF_SGMII) |
| 4459 | rx_ring_size /= 10; |
| 4460 | } |
Mintz Yuval | d760fc3 | 2012-02-15 02:10:28 +0000 | [diff] [blame] | 4461 | |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4462 | /* allocate at least number of buffers required by FW */ |
| 4463 | rx_ring_size = max_t(int, bp->disable_tpa ? MIN_RX_SIZE_NONTPA : |
| 4464 | MIN_RX_SIZE_TPA, rx_ring_size); |
| 4465 | |
| 4466 | bp->rx_ring_size = rx_ring_size; |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 4467 | } else /* if rx_ring_size specified - use it */ |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4468 | rx_ring_size = bp->rx_ring_size; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4469 | |
Yuval Mintz | 04c4673 | 2013-01-23 03:21:46 +0000 | [diff] [blame] | 4470 | DP(BNX2X_MSG_SP, "calculated rx_ring_size %d\n", rx_ring_size); |
| 4471 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4472 | /* Common */ |
| 4473 | sb = &bnx2x_fp(bp, index, status_blk); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4474 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4475 | if (!IS_FCOE_IDX(index)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4476 | /* status blocks */ |
Joe Perches | cd2b038 | 2014-02-20 13:25:51 -0800 | [diff] [blame] | 4477 | if (!CHIP_IS_E1x(bp)) { |
| 4478 | sb->e2_sb = BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, status_blk_mapping), |
| 4479 | sizeof(struct host_hc_status_block_e2)); |
| 4480 | if (!sb->e2_sb) |
| 4481 | goto alloc_mem_err; |
| 4482 | } else { |
| 4483 | sb->e1x_sb = BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, status_blk_mapping), |
| 4484 | sizeof(struct host_hc_status_block_e1x)); |
| 4485 | if (!sb->e1x_sb) |
| 4486 | goto alloc_mem_err; |
| 4487 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4488 | } |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 4489 | |
| 4490 | /* FCoE Queue uses Default SB and doesn't ACK the SB, thus no need to |
| 4491 | * set shortcuts for it. |
| 4492 | */ |
| 4493 | if (!IS_FCOE_IDX(index)) |
| 4494 | set_sb_shortcuts(bp, index); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4495 | |
| 4496 | /* Tx */ |
| 4497 | if (!skip_tx_queue(bp, index)) { |
| 4498 | /* fastpath tx rings: tx_buf tx_desc */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4499 | for_each_cos_in_tx_queue(fp, cos) { |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4500 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4501 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4502 | DP(NETIF_MSG_IFUP, |
| 4503 | "allocating tx memory of fp %d cos %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4504 | index, cos); |
| 4505 | |
Joe Perches | cd2b038 | 2014-02-20 13:25:51 -0800 | [diff] [blame] | 4506 | txdata->tx_buf_ring = kcalloc(NUM_TX_BD, |
| 4507 | sizeof(struct sw_tx_bd), |
| 4508 | GFP_KERNEL); |
| 4509 | if (!txdata->tx_buf_ring) |
| 4510 | goto alloc_mem_err; |
| 4511 | txdata->tx_desc_ring = BNX2X_PCI_ALLOC(&txdata->tx_desc_mapping, |
| 4512 | sizeof(union eth_tx_bd_types) * NUM_TX_BD); |
| 4513 | if (!txdata->tx_desc_ring) |
| 4514 | goto alloc_mem_err; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4515 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4516 | } |
| 4517 | |
| 4518 | /* Rx */ |
| 4519 | if (!skip_rx_queue(bp, index)) { |
| 4520 | /* fastpath rx rings: rx_buf rx_desc rx_comp */ |
Joe Perches | cd2b038 | 2014-02-20 13:25:51 -0800 | [diff] [blame] | 4521 | bnx2x_fp(bp, index, rx_buf_ring) = |
| 4522 | kcalloc(NUM_RX_BD, sizeof(struct sw_rx_bd), GFP_KERNEL); |
| 4523 | if (!bnx2x_fp(bp, index, rx_buf_ring)) |
| 4524 | goto alloc_mem_err; |
| 4525 | bnx2x_fp(bp, index, rx_desc_ring) = |
| 4526 | BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, rx_desc_mapping), |
| 4527 | sizeof(struct eth_rx_bd) * NUM_RX_BD); |
| 4528 | if (!bnx2x_fp(bp, index, rx_desc_ring)) |
| 4529 | goto alloc_mem_err; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4530 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 4531 | /* Seed all CQEs by 1s */ |
Joe Perches | cd2b038 | 2014-02-20 13:25:51 -0800 | [diff] [blame] | 4532 | bnx2x_fp(bp, index, rx_comp_ring) = |
| 4533 | BNX2X_PCI_FALLOC(&bnx2x_fp(bp, index, rx_comp_mapping), |
| 4534 | sizeof(struct eth_fast_path_rx_cqe) * NUM_RCQ_BD); |
| 4535 | if (!bnx2x_fp(bp, index, rx_comp_ring)) |
| 4536 | goto alloc_mem_err; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4537 | |
| 4538 | /* SGE ring */ |
Joe Perches | cd2b038 | 2014-02-20 13:25:51 -0800 | [diff] [blame] | 4539 | bnx2x_fp(bp, index, rx_page_ring) = |
| 4540 | kcalloc(NUM_RX_SGE, sizeof(struct sw_rx_page), |
| 4541 | GFP_KERNEL); |
| 4542 | if (!bnx2x_fp(bp, index, rx_page_ring)) |
| 4543 | goto alloc_mem_err; |
| 4544 | bnx2x_fp(bp, index, rx_sge_ring) = |
| 4545 | BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, rx_sge_mapping), |
| 4546 | BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); |
| 4547 | if (!bnx2x_fp(bp, index, rx_sge_ring)) |
| 4548 | goto alloc_mem_err; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4549 | /* RX BD ring */ |
| 4550 | bnx2x_set_next_page_rx_bd(fp); |
| 4551 | |
| 4552 | /* CQ ring */ |
| 4553 | bnx2x_set_next_page_rx_cq(fp); |
| 4554 | |
| 4555 | /* BDs */ |
| 4556 | ring_size = bnx2x_alloc_rx_bds(fp, rx_ring_size); |
| 4557 | if (ring_size < rx_ring_size) |
| 4558 | goto alloc_mem_err; |
| 4559 | } |
| 4560 | |
| 4561 | return 0; |
| 4562 | |
| 4563 | /* handles low memory cases */ |
| 4564 | alloc_mem_err: |
| 4565 | BNX2X_ERR("Unable to allocate full memory for queue %d (size %d)\n", |
| 4566 | index, ring_size); |
| 4567 | /* FW will drop all packets if queue is not big enough, |
| 4568 | * In these cases we disable the queue |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4569 | * Min size is different for OOO, TPA and non-TPA queues |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4570 | */ |
Michal Schmidt | 7e6b4d4 | 2015-04-28 11:34:22 +0200 | [diff] [blame] | 4571 | if (ring_size < (fp->mode == TPA_MODE_DISABLED ? |
Dmitry Kravkov | eb722d7 | 2011-05-24 02:06:06 +0000 | [diff] [blame] | 4572 | MIN_RX_SIZE_NONTPA : MIN_RX_SIZE_TPA)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4573 | /* release memory allocated for this queue */ |
| 4574 | bnx2x_free_fp_mem_at(bp, index); |
| 4575 | return -ENOMEM; |
| 4576 | } |
| 4577 | return 0; |
| 4578 | } |
| 4579 | |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 4580 | static int bnx2x_alloc_fp_mem_cnic(struct bnx2x *bp) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4581 | { |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 4582 | if (!NO_FCOE(bp)) |
| 4583 | /* FCoE */ |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4584 | if (bnx2x_alloc_fp_mem_at(bp, FCOE_IDX(bp))) |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 4585 | /* we will fail load process instead of mark |
| 4586 | * NO_FCOE_FLAG |
| 4587 | */ |
| 4588 | return -ENOMEM; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4589 | |
| 4590 | return 0; |
| 4591 | } |
| 4592 | |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 4593 | static int bnx2x_alloc_fp_mem(struct bnx2x *bp) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4594 | { |
| 4595 | int i; |
| 4596 | |
| 4597 | /* 1. Allocate FP for leading - fatal if error |
| 4598 | * 2. Allocate RSS - fix number of queues if error |
| 4599 | */ |
| 4600 | |
| 4601 | /* leading */ |
| 4602 | if (bnx2x_alloc_fp_mem_at(bp, 0)) |
| 4603 | return -ENOMEM; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4604 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4605 | /* RSS */ |
| 4606 | for_each_nondefault_eth_queue(bp, i) |
| 4607 | if (bnx2x_alloc_fp_mem_at(bp, i)) |
| 4608 | break; |
| 4609 | |
| 4610 | /* handle memory failures */ |
| 4611 | if (i != BNX2X_NUM_ETH_QUEUES(bp)) { |
| 4612 | int delta = BNX2X_NUM_ETH_QUEUES(bp) - i; |
| 4613 | |
| 4614 | WARN_ON(delta < 0); |
Yuval Mintz | 4864a16 | 2013-01-10 04:53:39 +0000 | [diff] [blame] | 4615 | bnx2x_shrink_eth_fp(bp, delta); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4616 | if (CNIC_SUPPORT(bp)) |
| 4617 | /* move non eth FPs next to last eth FP |
| 4618 | * must be done in that order |
| 4619 | * FCOE_IDX < FWD_IDX < OOO_IDX |
| 4620 | */ |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4621 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4622 | /* move FCoE fp even NO_FCOE_FLAG is on */ |
| 4623 | bnx2x_move_fp(bp, FCOE_IDX(bp), FCOE_IDX(bp) - delta); |
| 4624 | bp->num_ethernet_queues -= delta; |
| 4625 | bp->num_queues = bp->num_ethernet_queues + |
| 4626 | bp->num_cnic_queues; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4627 | BNX2X_ERR("Adjusted num of queues from %d to %d\n", |
| 4628 | bp->num_queues + delta, bp->num_queues); |
| 4629 | } |
| 4630 | |
| 4631 | return 0; |
| 4632 | } |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 4633 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4634 | void bnx2x_free_mem_bp(struct bnx2x *bp) |
| 4635 | { |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4636 | int i; |
| 4637 | |
| 4638 | for (i = 0; i < bp->fp_array_size; i++) |
| 4639 | kfree(bp->fp[i].tpa_info); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4640 | kfree(bp->fp); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4641 | kfree(bp->sp_objs); |
| 4642 | kfree(bp->fp_stats); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4643 | kfree(bp->bnx2x_txq); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4644 | kfree(bp->msix_table); |
| 4645 | kfree(bp->ilt); |
| 4646 | } |
| 4647 | |
Bill Pemberton | 0329aba | 2012-12-03 09:24:24 -0500 | [diff] [blame] | 4648 | int bnx2x_alloc_mem_bp(struct bnx2x *bp) |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4649 | { |
| 4650 | struct bnx2x_fastpath *fp; |
| 4651 | struct msix_entry *tbl; |
| 4652 | struct bnx2x_ilt *ilt; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4653 | int msix_table_size = 0; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4654 | int fp_array_size, txq_array_size; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4655 | int i; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4656 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4657 | /* |
| 4658 | * The biggest MSI-X table we might need is as a maximum number of fast |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 4659 | * path IGU SBs plus default SB (for PF only). |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4660 | */ |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 4661 | msix_table_size = bp->igu_sb_cnt; |
| 4662 | if (IS_PF(bp)) |
| 4663 | msix_table_size++; |
| 4664 | BNX2X_DEV_INFO("msix_table_size %d\n", msix_table_size); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4665 | |
| 4666 | /* fp array: RSS plus CNIC related L2 queues */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4667 | fp_array_size = BNX2X_MAX_RSS_COUNT(bp) + CNIC_SUPPORT(bp); |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4668 | bp->fp_array_size = fp_array_size; |
| 4669 | BNX2X_DEV_INFO("fp_array_size %d\n", bp->fp_array_size); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4670 | |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4671 | fp = kcalloc(bp->fp_array_size, sizeof(*fp), GFP_KERNEL); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4672 | if (!fp) |
| 4673 | goto alloc_err; |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4674 | for (i = 0; i < bp->fp_array_size; i++) { |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4675 | fp[i].tpa_info = |
| 4676 | kcalloc(ETH_MAX_AGGREGATION_QUEUES_E1H_E2, |
| 4677 | sizeof(struct bnx2x_agg_info), GFP_KERNEL); |
| 4678 | if (!(fp[i].tpa_info)) |
| 4679 | goto alloc_err; |
| 4680 | } |
| 4681 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4682 | bp->fp = fp; |
| 4683 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4684 | /* allocate sp objs */ |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4685 | bp->sp_objs = kcalloc(bp->fp_array_size, sizeof(struct bnx2x_sp_objs), |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4686 | GFP_KERNEL); |
| 4687 | if (!bp->sp_objs) |
| 4688 | goto alloc_err; |
| 4689 | |
| 4690 | /* allocate fp_stats */ |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4691 | bp->fp_stats = kcalloc(bp->fp_array_size, sizeof(struct bnx2x_fp_stats), |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4692 | GFP_KERNEL); |
| 4693 | if (!bp->fp_stats) |
| 4694 | goto alloc_err; |
| 4695 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4696 | /* Allocate memory for the transmission queues array */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4697 | txq_array_size = |
| 4698 | BNX2X_MAX_RSS_COUNT(bp) * BNX2X_MULTI_TX_COS + CNIC_SUPPORT(bp); |
| 4699 | BNX2X_DEV_INFO("txq_array_size %d", txq_array_size); |
| 4700 | |
| 4701 | bp->bnx2x_txq = kcalloc(txq_array_size, sizeof(struct bnx2x_fp_txdata), |
| 4702 | GFP_KERNEL); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4703 | if (!bp->bnx2x_txq) |
| 4704 | goto alloc_err; |
| 4705 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4706 | /* msix table */ |
Thomas Meyer | 01e2374 | 2011-11-29 11:08:00 +0000 | [diff] [blame] | 4707 | tbl = kcalloc(msix_table_size, sizeof(*tbl), GFP_KERNEL); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4708 | if (!tbl) |
| 4709 | goto alloc_err; |
| 4710 | bp->msix_table = tbl; |
| 4711 | |
| 4712 | /* ilt */ |
| 4713 | ilt = kzalloc(sizeof(*ilt), GFP_KERNEL); |
| 4714 | if (!ilt) |
| 4715 | goto alloc_err; |
| 4716 | bp->ilt = ilt; |
| 4717 | |
| 4718 | return 0; |
| 4719 | alloc_err: |
| 4720 | bnx2x_free_mem_bp(bp); |
| 4721 | return -ENOMEM; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4722 | } |
| 4723 | |
Dmitry Kravkov | a9fccec | 2011-06-14 01:33:30 +0000 | [diff] [blame] | 4724 | int bnx2x_reload_if_running(struct net_device *dev) |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4725 | { |
| 4726 | struct bnx2x *bp = netdev_priv(dev); |
| 4727 | |
| 4728 | if (unlikely(!netif_running(dev))) |
| 4729 | return 0; |
| 4730 | |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 4731 | bnx2x_nic_unload(bp, UNLOAD_NORMAL, true); |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4732 | return bnx2x_nic_load(bp, LOAD_NORMAL); |
| 4733 | } |
| 4734 | |
Yaniv Rosner | 1ac9e42 | 2011-05-31 21:26:11 +0000 | [diff] [blame] | 4735 | int bnx2x_get_cur_phy_idx(struct bnx2x *bp) |
| 4736 | { |
| 4737 | u32 sel_phy_idx = 0; |
| 4738 | if (bp->link_params.num_phys <= 1) |
| 4739 | return INT_PHY; |
| 4740 | |
| 4741 | if (bp->link_vars.link_up) { |
| 4742 | sel_phy_idx = EXT_PHY1; |
| 4743 | /* In case link is SERDES, check if the EXT_PHY2 is the one */ |
| 4744 | if ((bp->link_vars.link_status & LINK_STATUS_SERDES_LINK) && |
| 4745 | (bp->link_params.phy[EXT_PHY2].supported & SUPPORTED_FIBRE)) |
| 4746 | sel_phy_idx = EXT_PHY2; |
| 4747 | } else { |
| 4748 | |
| 4749 | switch (bnx2x_phy_selection(&bp->link_params)) { |
| 4750 | case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT: |
| 4751 | case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY: |
| 4752 | case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY: |
| 4753 | sel_phy_idx = EXT_PHY1; |
| 4754 | break; |
| 4755 | case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY: |
| 4756 | case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY: |
| 4757 | sel_phy_idx = EXT_PHY2; |
| 4758 | break; |
| 4759 | } |
| 4760 | } |
| 4761 | |
| 4762 | return sel_phy_idx; |
Yaniv Rosner | 1ac9e42 | 2011-05-31 21:26:11 +0000 | [diff] [blame] | 4763 | } |
| 4764 | int bnx2x_get_link_cfg_idx(struct bnx2x *bp) |
| 4765 | { |
| 4766 | u32 sel_phy_idx = bnx2x_get_cur_phy_idx(bp); |
| 4767 | /* |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 4768 | * The selected activated PHY is always after swapping (in case PHY |
Yaniv Rosner | 1ac9e42 | 2011-05-31 21:26:11 +0000 | [diff] [blame] | 4769 | * swapping is enabled). So when swapping is enabled, we need to reverse |
| 4770 | * the configuration |
| 4771 | */ |
| 4772 | |
| 4773 | if (bp->link_params.multi_phy_config & |
| 4774 | PORT_HW_CFG_PHY_SWAPPED_ENABLED) { |
| 4775 | if (sel_phy_idx == EXT_PHY1) |
| 4776 | sel_phy_idx = EXT_PHY2; |
| 4777 | else if (sel_phy_idx == EXT_PHY2) |
| 4778 | sel_phy_idx = EXT_PHY1; |
| 4779 | } |
| 4780 | return LINK_CONFIG_IDX(sel_phy_idx); |
| 4781 | } |
| 4782 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4783 | #ifdef NETDEV_FCOE_WWNN |
Vladislav Zolotarov | bf61ee1 | 2011-07-21 07:56:51 +0000 | [diff] [blame] | 4784 | int bnx2x_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type) |
| 4785 | { |
| 4786 | struct bnx2x *bp = netdev_priv(dev); |
| 4787 | struct cnic_eth_dev *cp = &bp->cnic_eth_dev; |
| 4788 | |
| 4789 | switch (type) { |
| 4790 | case NETDEV_FCOE_WWNN: |
| 4791 | *wwn = HILO_U64(cp->fcoe_wwn_node_name_hi, |
| 4792 | cp->fcoe_wwn_node_name_lo); |
| 4793 | break; |
| 4794 | case NETDEV_FCOE_WWPN: |
| 4795 | *wwn = HILO_U64(cp->fcoe_wwn_port_name_hi, |
| 4796 | cp->fcoe_wwn_port_name_lo); |
| 4797 | break; |
| 4798 | default: |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4799 | BNX2X_ERR("Wrong WWN type requested - %d\n", type); |
Vladislav Zolotarov | bf61ee1 | 2011-07-21 07:56:51 +0000 | [diff] [blame] | 4800 | return -EINVAL; |
| 4801 | } |
| 4802 | |
| 4803 | return 0; |
| 4804 | } |
| 4805 | #endif |
| 4806 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4807 | /* called with rtnl_lock */ |
| 4808 | int bnx2x_change_mtu(struct net_device *dev, int new_mtu) |
| 4809 | { |
| 4810 | struct bnx2x *bp = netdev_priv(dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4811 | |
Yuval Mintz | 0650c0b | 2015-05-04 12:34:12 +0300 | [diff] [blame] | 4812 | if (pci_num_vf(bp->pdev)) { |
| 4813 | DP(BNX2X_MSG_IOV, "VFs are enabled, can not change MTU\n"); |
| 4814 | return -EPERM; |
| 4815 | } |
| 4816 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4817 | if (bp->recovery_state != BNX2X_RECOVERY_DONE) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4818 | BNX2X_ERR("Can't perform change MTU during parity recovery\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4819 | return -EAGAIN; |
| 4820 | } |
| 4821 | |
| 4822 | if ((new_mtu > ETH_MAX_JUMBO_PACKET_SIZE) || |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4823 | ((new_mtu + ETH_HLEN) < ETH_MIN_PACKET_SIZE)) { |
| 4824 | BNX2X_ERR("Can't support requested MTU size\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4825 | return -EINVAL; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4826 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4827 | |
| 4828 | /* This does not race with packet allocation |
| 4829 | * because the actual alloc size is |
| 4830 | * only updated as part of load |
| 4831 | */ |
| 4832 | dev->mtu = new_mtu; |
| 4833 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4834 | return bnx2x_reload_if_running(dev); |
| 4835 | } |
| 4836 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 4837 | netdev_features_t bnx2x_fix_features(struct net_device *dev, |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4838 | netdev_features_t features) |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4839 | { |
| 4840 | struct bnx2x *bp = netdev_priv(dev); |
| 4841 | |
Yuval Mintz | 909d9fa | 2015-04-22 12:47:32 +0300 | [diff] [blame] | 4842 | if (pci_num_vf(bp->pdev)) { |
| 4843 | netdev_features_t changed = dev->features ^ features; |
| 4844 | |
| 4845 | /* Revert the requested changes in features if they |
| 4846 | * would require internal reload of PF in bnx2x_set_features(). |
| 4847 | */ |
| 4848 | if (!(features & NETIF_F_RXCSUM) && !bp->disable_tpa) { |
| 4849 | features &= ~NETIF_F_RXCSUM; |
| 4850 | features |= dev->features & NETIF_F_RXCSUM; |
| 4851 | } |
| 4852 | |
| 4853 | if (changed & NETIF_F_LOOPBACK) { |
| 4854 | features &= ~NETIF_F_LOOPBACK; |
| 4855 | features |= dev->features & NETIF_F_LOOPBACK; |
| 4856 | } |
| 4857 | } |
| 4858 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4859 | /* TPA requires Rx CSUM offloading */ |
Dmitry Kravkov | aebf624 | 2014-08-25 17:48:32 +0300 | [diff] [blame] | 4860 | if (!(features & NETIF_F_RXCSUM)) { |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4861 | features &= ~NETIF_F_LRO; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4862 | features &= ~NETIF_F_GRO; |
| 4863 | } |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4864 | |
| 4865 | return features; |
| 4866 | } |
| 4867 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 4868 | int bnx2x_set_features(struct net_device *dev, netdev_features_t features) |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4869 | { |
| 4870 | struct bnx2x *bp = netdev_priv(dev); |
Michal Schmidt | f8dcb5e | 2015-04-28 11:34:23 +0200 | [diff] [blame] | 4871 | netdev_features_t changes = features ^ dev->features; |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4872 | bool bnx2x_reload = false; |
Michal Schmidt | f8dcb5e | 2015-04-28 11:34:23 +0200 | [diff] [blame] | 4873 | int rc; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4874 | |
Yuval Mintz | 909d9fa | 2015-04-22 12:47:32 +0300 | [diff] [blame] | 4875 | /* VFs or non SRIOV PFs should be able to change loopback feature */ |
| 4876 | if (!pci_num_vf(bp->pdev)) { |
| 4877 | if (features & NETIF_F_LOOPBACK) { |
| 4878 | if (bp->link_params.loopback_mode != LOOPBACK_BMAC) { |
| 4879 | bp->link_params.loopback_mode = LOOPBACK_BMAC; |
| 4880 | bnx2x_reload = true; |
| 4881 | } |
| 4882 | } else { |
| 4883 | if (bp->link_params.loopback_mode != LOOPBACK_NONE) { |
| 4884 | bp->link_params.loopback_mode = LOOPBACK_NONE; |
| 4885 | bnx2x_reload = true; |
| 4886 | } |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4887 | } |
| 4888 | } |
| 4889 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 4890 | /* if GRO is changed while LRO is enabled, don't force a reload */ |
Michal Schmidt | f8dcb5e | 2015-04-28 11:34:23 +0200 | [diff] [blame] | 4891 | if ((changes & NETIF_F_GRO) && (features & NETIF_F_LRO)) |
| 4892 | changes &= ~NETIF_F_GRO; |
Eric Dumazet | 8802f57 | 2013-05-18 07:14:53 +0000 | [diff] [blame] | 4893 | |
Dmitry Kravkov | aebf624 | 2014-08-25 17:48:32 +0300 | [diff] [blame] | 4894 | /* if GRO is changed while HW TPA is off, don't force a reload */ |
Michal Schmidt | f8dcb5e | 2015-04-28 11:34:23 +0200 | [diff] [blame] | 4895 | if ((changes & NETIF_F_GRO) && bp->disable_tpa) |
| 4896 | changes &= ~NETIF_F_GRO; |
Dmitry Kravkov | aebf624 | 2014-08-25 17:48:32 +0300 | [diff] [blame] | 4897 | |
Eric Dumazet | 8802f57 | 2013-05-18 07:14:53 +0000 | [diff] [blame] | 4898 | if (changes) |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4899 | bnx2x_reload = true; |
Eric Dumazet | 8802f57 | 2013-05-18 07:14:53 +0000 | [diff] [blame] | 4900 | |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4901 | if (bnx2x_reload) { |
Michal Schmidt | f8dcb5e | 2015-04-28 11:34:23 +0200 | [diff] [blame] | 4902 | if (bp->recovery_state == BNX2X_RECOVERY_DONE) { |
| 4903 | dev->features = features; |
| 4904 | rc = bnx2x_reload_if_running(dev); |
| 4905 | return rc ? rc : 1; |
| 4906 | } |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4907 | /* else: bnx2x_nic_load() will be called at end of recovery */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4908 | } |
| 4909 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4910 | return 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4911 | } |
| 4912 | |
| 4913 | void bnx2x_tx_timeout(struct net_device *dev) |
| 4914 | { |
| 4915 | struct bnx2x *bp = netdev_priv(dev); |
| 4916 | |
| 4917 | #ifdef BNX2X_STOP_ON_ERROR |
| 4918 | if (!bp->panic) |
| 4919 | bnx2x_panic(); |
| 4920 | #endif |
Ariel Elior | 7be08a7 | 2011-07-14 08:31:19 +0000 | [diff] [blame] | 4921 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4922 | /* This allows the netif to be shutdown gracefully before resetting */ |
Yuval Mintz | 230bb0f | 2014-02-12 18:19:56 +0200 | [diff] [blame] | 4923 | bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_TX_TIMEOUT, 0); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4924 | } |
| 4925 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4926 | int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state) |
| 4927 | { |
| 4928 | struct net_device *dev = pci_get_drvdata(pdev); |
| 4929 | struct bnx2x *bp; |
| 4930 | |
| 4931 | if (!dev) { |
| 4932 | dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n"); |
| 4933 | return -ENODEV; |
| 4934 | } |
| 4935 | bp = netdev_priv(dev); |
| 4936 | |
| 4937 | rtnl_lock(); |
| 4938 | |
| 4939 | pci_save_state(pdev); |
| 4940 | |
| 4941 | if (!netif_running(dev)) { |
| 4942 | rtnl_unlock(); |
| 4943 | return 0; |
| 4944 | } |
| 4945 | |
| 4946 | netif_device_detach(dev); |
| 4947 | |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 4948 | bnx2x_nic_unload(bp, UNLOAD_CLOSE, false); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4949 | |
| 4950 | bnx2x_set_power_state(bp, pci_choose_state(pdev, state)); |
| 4951 | |
| 4952 | rtnl_unlock(); |
| 4953 | |
| 4954 | return 0; |
| 4955 | } |
| 4956 | |
| 4957 | int bnx2x_resume(struct pci_dev *pdev) |
| 4958 | { |
| 4959 | struct net_device *dev = pci_get_drvdata(pdev); |
| 4960 | struct bnx2x *bp; |
| 4961 | int rc; |
| 4962 | |
| 4963 | if (!dev) { |
| 4964 | dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n"); |
| 4965 | return -ENODEV; |
| 4966 | } |
| 4967 | bp = netdev_priv(dev); |
| 4968 | |
| 4969 | if (bp->recovery_state != BNX2X_RECOVERY_DONE) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4970 | BNX2X_ERR("Handling parity error recovery. Try again later\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4971 | return -EAGAIN; |
| 4972 | } |
| 4973 | |
| 4974 | rtnl_lock(); |
| 4975 | |
| 4976 | pci_restore_state(pdev); |
| 4977 | |
| 4978 | if (!netif_running(dev)) { |
| 4979 | rtnl_unlock(); |
| 4980 | return 0; |
| 4981 | } |
| 4982 | |
| 4983 | bnx2x_set_power_state(bp, PCI_D0); |
| 4984 | netif_device_attach(dev); |
| 4985 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4986 | rc = bnx2x_nic_load(bp, LOAD_OPEN); |
| 4987 | |
| 4988 | rtnl_unlock(); |
| 4989 | |
| 4990 | return rc; |
| 4991 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4992 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4993 | void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt, |
| 4994 | u32 cid) |
| 4995 | { |
Ariel Elior | b9871bc | 2013-09-04 14:09:21 +0300 | [diff] [blame] | 4996 | if (!cxt) { |
| 4997 | BNX2X_ERR("bad context pointer %p\n", cxt); |
| 4998 | return; |
| 4999 | } |
| 5000 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 5001 | /* ustorm cxt validation */ |
| 5002 | cxt->ustorm_ag_context.cdu_usage = |
| 5003 | CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), |
| 5004 | CDU_REGION_NUMBER_UCM_AG, ETH_CONNECTION_TYPE); |
| 5005 | /* xcontext validation */ |
| 5006 | cxt->xstorm_ag_context.cdu_reserved = |
| 5007 | CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), |
| 5008 | CDU_REGION_NUMBER_XCM_AG, ETH_CONNECTION_TYPE); |
| 5009 | } |
| 5010 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 5011 | static void storm_memset_hc_timeout(struct bnx2x *bp, u8 port, |
| 5012 | u8 fw_sb_id, u8 sb_index, |
| 5013 | u8 ticks) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 5014 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 5015 | u32 addr = BAR_CSTRORM_INTMEM + |
| 5016 | CSTORM_STATUS_BLOCK_DATA_TIMEOUT_OFFSET(fw_sb_id, sb_index); |
| 5017 | REG_WR8(bp, addr, ticks); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 5018 | DP(NETIF_MSG_IFUP, |
| 5019 | "port %x fw_sb_id %d sb_index %d ticks %d\n", |
| 5020 | port, fw_sb_id, sb_index, ticks); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 5021 | } |
| 5022 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 5023 | static void storm_memset_hc_disable(struct bnx2x *bp, u8 port, |
| 5024 | u16 fw_sb_id, u8 sb_index, |
| 5025 | u8 disable) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 5026 | { |
| 5027 | u32 enable_flag = disable ? 0 : (1 << HC_INDEX_DATA_HC_ENABLED_SHIFT); |
| 5028 | u32 addr = BAR_CSTRORM_INTMEM + |
| 5029 | CSTORM_STATUS_BLOCK_DATA_FLAGS_OFFSET(fw_sb_id, sb_index); |
Ariel Elior | 0c14e5c | 2013-04-17 22:49:06 +0000 | [diff] [blame] | 5030 | u8 flags = REG_RD8(bp, addr); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 5031 | /* clear and set */ |
| 5032 | flags &= ~HC_INDEX_DATA_HC_ENABLED; |
| 5033 | flags |= enable_flag; |
Ariel Elior | 0c14e5c | 2013-04-17 22:49:06 +0000 | [diff] [blame] | 5034 | REG_WR8(bp, addr, flags); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 5035 | DP(NETIF_MSG_IFUP, |
| 5036 | "port %x fw_sb_id %d sb_index %d disable %d\n", |
| 5037 | port, fw_sb_id, sb_index, disable); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 5038 | } |
| 5039 | |
| 5040 | void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id, |
| 5041 | u8 sb_index, u8 disable, u16 usec) |
| 5042 | { |
| 5043 | int port = BP_PORT(bp); |
| 5044 | u8 ticks = usec / BNX2X_BTR; |
| 5045 | |
| 5046 | storm_memset_hc_timeout(bp, port, fw_sb_id, sb_index, ticks); |
| 5047 | |
| 5048 | disable = disable ? 1 : (usec ? 0 : 1); |
| 5049 | storm_memset_hc_disable(bp, port, fw_sb_id, sb_index, disable); |
| 5050 | } |
Yuval Mintz | 230bb0f | 2014-02-12 18:19:56 +0200 | [diff] [blame] | 5051 | |
| 5052 | void bnx2x_schedule_sp_rtnl(struct bnx2x *bp, enum sp_rtnl_flag flag, |
| 5053 | u32 verbose) |
| 5054 | { |
Peter Zijlstra | 4e857c5 | 2014-03-17 18:06:10 +0100 | [diff] [blame] | 5055 | smp_mb__before_atomic(); |
Yuval Mintz | 230bb0f | 2014-02-12 18:19:56 +0200 | [diff] [blame] | 5056 | set_bit(flag, &bp->sp_rtnl_state); |
Peter Zijlstra | 4e857c5 | 2014-03-17 18:06:10 +0100 | [diff] [blame] | 5057 | smp_mb__after_atomic(); |
Yuval Mintz | 230bb0f | 2014-02-12 18:19:56 +0200 | [diff] [blame] | 5058 | DP((BNX2X_MSG_SP | verbose), "Scheduling sp_rtnl task [Flag: %d]\n", |
| 5059 | flag); |
| 5060 | schedule_delayed_work(&bp->sp_rtnl_task, 0); |
| 5061 | } |
| 5062 | EXPORT_SYMBOL(bnx2x_schedule_sp_rtnl); |