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; |
| 265 | } |
Yuval Mintz | d8290ae | 2012-03-18 10:33:37 +0000 | [diff] [blame] | 266 | |
Vladislav Zolotarov | 4095553 | 2011-05-22 10:06:58 +0000 | [diff] [blame] | 267 | dev_kfree_skb_any(skb); |
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 | { |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 547 | struct page *page = alloc_pages(gfp_mask, PAGES_PER_SGE_SHIFT); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 548 | struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; |
| 549 | struct eth_rx_sge *sge = &fp->rx_sge_ring[index]; |
| 550 | dma_addr_t mapping; |
| 551 | |
| 552 | if (unlikely(page == NULL)) { |
| 553 | BNX2X_ERR("Can't alloc sge\n"); |
| 554 | return -ENOMEM; |
| 555 | } |
| 556 | |
| 557 | mapping = dma_map_page(&bp->pdev->dev, page, 0, |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 558 | SGE_PAGES, DMA_FROM_DEVICE); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 559 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 560 | __free_pages(page, PAGES_PER_SGE_SHIFT); |
| 561 | BNX2X_ERR("Can't map sge\n"); |
| 562 | return -ENOMEM; |
| 563 | } |
| 564 | |
| 565 | sw_buf->page = page; |
| 566 | dma_unmap_addr_set(sw_buf, mapping, mapping); |
| 567 | |
| 568 | sge->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 569 | sge->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 570 | |
| 571 | return 0; |
| 572 | } |
| 573 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 574 | 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] | 575 | struct bnx2x_agg_info *tpa_info, |
| 576 | u16 pages, |
| 577 | struct sk_buff *skb, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 578 | struct eth_end_agg_rx_cqe *cqe, |
| 579 | u16 cqe_idx) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 580 | { |
| 581 | struct sw_rx_page *rx_pg, old_rx_pg; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 582 | u32 i, frag_len, frag_size; |
| 583 | int err, j, frag_id = 0; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 584 | u16 len_on_bd = tpa_info->len_on_bd; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 585 | u16 full_page = 0, gro_size = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 586 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 587 | frag_size = le16_to_cpu(cqe->pkt_len) - len_on_bd; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 588 | |
| 589 | if (fp->mode == TPA_MODE_GRO) { |
| 590 | gro_size = tpa_info->gro_size; |
| 591 | full_page = tpa_info->full_page; |
| 592 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 593 | |
| 594 | /* This is needed in order to enable forwarding support */ |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 595 | if (frag_size) |
| 596 | bnx2x_set_gro_params(skb, tpa_info->parsing_flags, len_on_bd, |
Yuval Mintz | ab5777d | 2013-03-11 05:17:47 +0000 | [diff] [blame] | 597 | le16_to_cpu(cqe->pkt_len), |
| 598 | le16_to_cpu(cqe->num_of_coalesced_segs)); |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 599 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 600 | #ifdef BNX2X_STOP_ON_ERROR |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 601 | if (pages > min_t(u32, 8, MAX_SKB_FRAGS) * SGE_PAGES) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 602 | BNX2X_ERR("SGL length is too long: %d. CQE index is %d\n", |
| 603 | pages, cqe_idx); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 604 | BNX2X_ERR("cqe->pkt_len = %d\n", cqe->pkt_len); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 605 | bnx2x_panic(); |
| 606 | return -EINVAL; |
| 607 | } |
| 608 | #endif |
| 609 | |
| 610 | /* Run through the SGL and compose the fragmented skb */ |
| 611 | for (i = 0, j = 0; i < pages; i += PAGES_PER_SGE, j++) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 612 | 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] | 613 | |
| 614 | /* FW gives the indices of the SGE as if the ring is an array |
| 615 | (meaning that "next" element will consume 2 indices) */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 616 | if (fp->mode == TPA_MODE_GRO) |
| 617 | frag_len = min_t(u32, frag_size, (u32)full_page); |
| 618 | else /* LRO */ |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 619 | frag_len = min_t(u32, frag_size, (u32)SGE_PAGES); |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 620 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 621 | rx_pg = &fp->rx_page_ring[sge_idx]; |
| 622 | old_rx_pg = *rx_pg; |
| 623 | |
| 624 | /* If we fail to allocate a substitute page, we simply stop |
| 625 | where we are and drop the whole packet */ |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 626 | err = bnx2x_alloc_rx_sge(bp, fp, sge_idx, GFP_ATOMIC); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 627 | if (unlikely(err)) { |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 628 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 629 | return err; |
| 630 | } |
| 631 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 632 | /* Unmap the page as we're going to pass it to the stack */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 633 | dma_unmap_page(&bp->pdev->dev, |
| 634 | dma_unmap_addr(&old_rx_pg, mapping), |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 635 | SGE_PAGES, DMA_FROM_DEVICE); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 636 | /* Add one frag and update the appropriate fields in the skb */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 637 | if (fp->mode == TPA_MODE_LRO) |
| 638 | skb_fill_page_desc(skb, j, old_rx_pg.page, 0, frag_len); |
| 639 | else { /* GRO */ |
| 640 | int rem; |
| 641 | int offset = 0; |
| 642 | for (rem = frag_len; rem > 0; rem -= gro_size) { |
| 643 | int len = rem > gro_size ? gro_size : rem; |
| 644 | skb_fill_page_desc(skb, frag_id++, |
| 645 | old_rx_pg.page, offset, len); |
| 646 | if (offset) |
| 647 | get_page(old_rx_pg.page); |
| 648 | offset += len; |
| 649 | } |
| 650 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 651 | |
| 652 | skb->data_len += frag_len; |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 653 | skb->truesize += SGE_PAGES; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 654 | skb->len += frag_len; |
| 655 | |
| 656 | frag_size -= frag_len; |
| 657 | } |
| 658 | |
| 659 | return 0; |
| 660 | } |
| 661 | |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 662 | static void bnx2x_frag_free(const struct bnx2x_fastpath *fp, void *data) |
| 663 | { |
| 664 | if (fp->rx_frag_size) |
| 665 | put_page(virt_to_head_page(data)); |
| 666 | else |
| 667 | kfree(data); |
| 668 | } |
| 669 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 670 | 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] | 671 | { |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 672 | if (fp->rx_frag_size) { |
| 673 | /* GFP_KERNEL allocations are used only during initialization */ |
| 674 | if (unlikely(gfp_mask & __GFP_WAIT)) |
| 675 | return (void *)__get_free_page(gfp_mask); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 676 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 677 | return netdev_alloc_frag(fp->rx_frag_size); |
| 678 | } |
| 679 | |
| 680 | return kmalloc(fp->rx_buf_size + NET_SKB_PAD, gfp_mask); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 681 | } |
| 682 | |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 683 | #ifdef CONFIG_INET |
| 684 | static void bnx2x_gro_ip_csum(struct bnx2x *bp, struct sk_buff *skb) |
| 685 | { |
| 686 | const struct iphdr *iph = ip_hdr(skb); |
| 687 | struct tcphdr *th; |
| 688 | |
| 689 | skb_set_transport_header(skb, sizeof(struct iphdr)); |
| 690 | th = tcp_hdr(skb); |
| 691 | |
| 692 | th->check = ~tcp_v4_check(skb->len - skb_transport_offset(skb), |
| 693 | iph->saddr, iph->daddr, 0); |
| 694 | } |
| 695 | |
| 696 | static void bnx2x_gro_ipv6_csum(struct bnx2x *bp, struct sk_buff *skb) |
| 697 | { |
| 698 | struct ipv6hdr *iph = ipv6_hdr(skb); |
| 699 | struct tcphdr *th; |
| 700 | |
| 701 | skb_set_transport_header(skb, sizeof(struct ipv6hdr)); |
| 702 | th = tcp_hdr(skb); |
| 703 | |
| 704 | th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb), |
| 705 | &iph->saddr, &iph->daddr, 0); |
| 706 | } |
Yuval Mintz | 2c2d06d | 2013-04-24 01:44:58 +0000 | [diff] [blame] | 707 | |
| 708 | static void bnx2x_gro_csum(struct bnx2x *bp, struct sk_buff *skb, |
| 709 | void (*gro_func)(struct bnx2x*, struct sk_buff*)) |
| 710 | { |
| 711 | skb_set_network_header(skb, 0); |
| 712 | gro_func(bp, skb); |
| 713 | tcp_gro_complete(skb); |
| 714 | } |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 715 | #endif |
| 716 | |
| 717 | static void bnx2x_gro_receive(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 718 | struct sk_buff *skb) |
| 719 | { |
| 720 | #ifdef CONFIG_INET |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 721 | if (skb_shinfo(skb)->gso_size) { |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 722 | switch (be16_to_cpu(skb->protocol)) { |
| 723 | case ETH_P_IP: |
Yuval Mintz | 2c2d06d | 2013-04-24 01:44:58 +0000 | [diff] [blame] | 724 | bnx2x_gro_csum(bp, skb, bnx2x_gro_ip_csum); |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 725 | break; |
| 726 | case ETH_P_IPV6: |
Yuval Mintz | 2c2d06d | 2013-04-24 01:44:58 +0000 | [diff] [blame] | 727 | bnx2x_gro_csum(bp, skb, bnx2x_gro_ipv6_csum); |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 728 | break; |
| 729 | default: |
Yuval Mintz | 2c2d06d | 2013-04-24 01:44:58 +0000 | [diff] [blame] | 730 | 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] | 731 | be16_to_cpu(skb->protocol)); |
| 732 | } |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 733 | } |
| 734 | #endif |
Eric Dumazet | 60e66fe | 2013-10-12 14:08:34 -0700 | [diff] [blame] | 735 | skb_record_rx_queue(skb, fp->rx_queue); |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 736 | napi_gro_receive(&fp->napi, skb); |
| 737 | } |
| 738 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 739 | static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 740 | struct bnx2x_agg_info *tpa_info, |
| 741 | u16 pages, |
| 742 | struct eth_end_agg_rx_cqe *cqe, |
| 743 | u16 cqe_idx) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 744 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 745 | struct sw_rx_bd *rx_buf = &tpa_info->first_buf; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 746 | u8 pad = tpa_info->placement_offset; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 747 | u16 len = tpa_info->len_on_bd; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 748 | struct sk_buff *skb = NULL; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 749 | u8 *new_data, *data = rx_buf->data; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 750 | u8 old_tpa_state = tpa_info->tpa_state; |
| 751 | |
| 752 | tpa_info->tpa_state = BNX2X_TPA_STOP; |
| 753 | |
| 754 | /* If we there was an error during the handling of the TPA_START - |
| 755 | * drop this aggregation. |
| 756 | */ |
| 757 | if (old_tpa_state == BNX2X_TPA_ERROR) |
| 758 | goto drop; |
| 759 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 760 | /* Try to allocate the new data */ |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 761 | new_data = bnx2x_frag_alloc(fp, GFP_ATOMIC); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 762 | /* Unmap skb in the pool anyway, as we are going to change |
| 763 | pool entry status to BNX2X_TPA_STOP even if new skb allocation |
| 764 | fails. */ |
| 765 | dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(rx_buf, mapping), |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 766 | fp->rx_buf_size, DMA_FROM_DEVICE); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 767 | if (likely(new_data)) |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 768 | skb = build_skb(data, fp->rx_frag_size); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 769 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 770 | if (likely(skb)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 771 | #ifdef BNX2X_STOP_ON_ERROR |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 772 | if (pad + len > fp->rx_buf_size) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 773 | 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] | 774 | pad, len, fp->rx_buf_size); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 775 | bnx2x_panic(); |
| 776 | return; |
| 777 | } |
| 778 | #endif |
| 779 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 780 | skb_reserve(skb, pad + NET_SKB_PAD); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 781 | skb_put(skb, len); |
Tom Herbert | 5495ab7 | 2013-12-19 08:59:08 -0800 | [diff] [blame] | 782 | skb_set_hash(skb, tpa_info->rxhash, tpa_info->rxhash_type); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 783 | |
| 784 | skb->protocol = eth_type_trans(skb, bp->dev); |
| 785 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 786 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 787 | if (!bnx2x_fill_frag_skb(bp, fp, tpa_info, pages, |
| 788 | skb, cqe, cqe_idx)) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 789 | if (tpa_info->parsing_flags & PARSING_FLAGS_VLAN) |
Patrick McHardy | 86a9bad | 2013-04-19 02:04:30 +0000 | [diff] [blame] | 790 | __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] | 791 | bnx2x_gro_receive(bp, fp, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 792 | } else { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 793 | DP(NETIF_MSG_RX_STATUS, |
| 794 | "Failed to allocate new pages - dropping packet!\n"); |
Vladislav Zolotarov | 4095553 | 2011-05-22 10:06:58 +0000 | [diff] [blame] | 795 | dev_kfree_skb_any(skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 796 | } |
| 797 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 798 | /* put new data in bin */ |
| 799 | rx_buf->data = new_data; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 800 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 801 | return; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 802 | } |
Eric Dumazet | 07b0f00 | 2014-06-26 00:44:02 -0700 | [diff] [blame] | 803 | if (new_data) |
| 804 | bnx2x_frag_free(fp, new_data); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 805 | drop: |
| 806 | /* drop the packet and keep the buffer in the bin */ |
| 807 | DP(NETIF_MSG_RX_STATUS, |
| 808 | "Failed to allocate or map a new skb - dropping packet!\n"); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 809 | bnx2x_fp_stats(bp, fp)->eth_q_stats.rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 810 | } |
| 811 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 812 | static int bnx2x_alloc_rx_data(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 813 | u16 index, gfp_t gfp_mask) |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 814 | { |
| 815 | u8 *data; |
| 816 | struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[index]; |
| 817 | struct eth_rx_bd *rx_bd = &fp->rx_desc_ring[index]; |
| 818 | dma_addr_t mapping; |
| 819 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 820 | data = bnx2x_frag_alloc(fp, gfp_mask); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 821 | if (unlikely(data == NULL)) |
| 822 | return -ENOMEM; |
| 823 | |
| 824 | mapping = dma_map_single(&bp->pdev->dev, data + NET_SKB_PAD, |
| 825 | fp->rx_buf_size, |
| 826 | DMA_FROM_DEVICE); |
| 827 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 828 | bnx2x_frag_free(fp, data); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 829 | BNX2X_ERR("Can't map rx data\n"); |
| 830 | return -ENOMEM; |
| 831 | } |
| 832 | |
| 833 | rx_buf->data = data; |
| 834 | dma_unmap_addr_set(rx_buf, mapping, mapping); |
| 835 | |
| 836 | rx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 837 | rx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 838 | |
| 839 | return 0; |
| 840 | } |
| 841 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 842 | static |
| 843 | void bnx2x_csum_validate(struct sk_buff *skb, union eth_rx_cqe *cqe, |
| 844 | struct bnx2x_fastpath *fp, |
| 845 | struct bnx2x_eth_q_stats *qstats) |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 846 | { |
Michal Schmidt | e488921 | 2012-09-13 12:59:44 +0000 | [diff] [blame] | 847 | /* Do nothing if no L4 csum validation was done. |
| 848 | * We do not check whether IP csum was validated. For IPv4 we assume |
| 849 | * that if the card got as far as validating the L4 csum, it also |
| 850 | * validated the IP csum. IPv6 has no IP csum. |
| 851 | */ |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 852 | if (cqe->fast_path_cqe.status_flags & |
Michal Schmidt | e488921 | 2012-09-13 12:59:44 +0000 | [diff] [blame] | 853 | ETH_FAST_PATH_RX_CQE_L4_XSUM_NO_VALIDATION_FLG) |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 854 | return; |
| 855 | |
Michal Schmidt | e488921 | 2012-09-13 12:59:44 +0000 | [diff] [blame] | 856 | /* If L4 validation was done, check if an error was found. */ |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 857 | |
| 858 | if (cqe->fast_path_cqe.type_error_flags & |
| 859 | (ETH_FAST_PATH_RX_CQE_IP_BAD_XSUM_FLG | |
| 860 | ETH_FAST_PATH_RX_CQE_L4_BAD_XSUM_FLG)) |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 861 | qstats->hw_csum_err++; |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 862 | else |
| 863 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 864 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 865 | |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 866 | static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 867 | { |
| 868 | struct bnx2x *bp = fp->bp; |
| 869 | u16 bd_cons, bd_prod, bd_prod_fw, comp_ring_cons; |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 870 | u16 sw_comp_cons, sw_comp_prod; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 871 | int rx_pkt = 0; |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 872 | union eth_rx_cqe *cqe; |
| 873 | struct eth_fast_path_rx_cqe *cqe_fp; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 874 | |
| 875 | #ifdef BNX2X_STOP_ON_ERROR |
| 876 | if (unlikely(bp->panic)) |
| 877 | return 0; |
| 878 | #endif |
Eric W. Biederman | b352974 | 2014-03-14 17:57:59 -0700 | [diff] [blame] | 879 | if (budget <= 0) |
| 880 | return rx_pkt; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 881 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 882 | bd_cons = fp->rx_bd_cons; |
| 883 | bd_prod = fp->rx_bd_prod; |
| 884 | bd_prod_fw = bd_prod; |
| 885 | sw_comp_cons = fp->rx_comp_cons; |
| 886 | sw_comp_prod = fp->rx_comp_prod; |
| 887 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 888 | comp_ring_cons = RCQ_BD(sw_comp_cons); |
| 889 | cqe = &fp->rx_comp_ring[comp_ring_cons]; |
| 890 | cqe_fp = &cqe->fast_path_cqe; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 891 | |
| 892 | DP(NETIF_MSG_RX_STATUS, |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 893 | "queue[%d]: sw_comp_cons %u\n", fp->index, sw_comp_cons); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 894 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 895 | while (BNX2X_IS_CQE_COMPLETED(cqe_fp)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 896 | struct sw_rx_bd *rx_buf = NULL; |
| 897 | struct sk_buff *skb; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 898 | u8 cqe_fp_flags; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 899 | enum eth_rx_cqe_type cqe_fp_type; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 900 | u16 len, pad, queue; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 901 | u8 *data; |
Tom Herbert | bd5cef0 | 2013-12-17 23:23:11 -0800 | [diff] [blame] | 902 | u32 rxhash; |
Tom Herbert | 5495ab7 | 2013-12-19 08:59:08 -0800 | [diff] [blame] | 903 | enum pkt_hash_types rxhash_type; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 904 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 905 | #ifdef BNX2X_STOP_ON_ERROR |
| 906 | if (unlikely(bp->panic)) |
| 907 | return 0; |
| 908 | #endif |
| 909 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 910 | bd_prod = RX_BD(bd_prod); |
| 911 | bd_cons = RX_BD(bd_cons); |
| 912 | |
wenxiong@linux.vnet.ibm.com | 9aaae04 | 2014-06-03 14:14:46 -0500 | [diff] [blame] | 913 | /* A rmb() is required to ensure that the CQE is not read |
| 914 | * before it is written by the adapter DMA. PCI ordering |
| 915 | * rules will make sure the other fields are written before |
| 916 | * the marker at the end of struct eth_fast_path_rx_cqe |
| 917 | * but without rmb() a weakly ordered processor can process |
| 918 | * stale data. Without the barrier TPA state-machine might |
| 919 | * enter inconsistent state and kernel stack might be |
| 920 | * provided with incorrect packet description - these lead |
| 921 | * to various kernel crashed. |
| 922 | */ |
| 923 | rmb(); |
| 924 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 925 | cqe_fp_flags = cqe_fp->type_error_flags; |
| 926 | cqe_fp_type = cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 927 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 928 | DP(NETIF_MSG_RX_STATUS, |
| 929 | "CQE type %x err %x status %x queue %x vlan %x len %u\n", |
| 930 | CQE_TYPE(cqe_fp_flags), |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 931 | cqe_fp_flags, cqe_fp->status_flags, |
| 932 | le32_to_cpu(cqe_fp->rss_hash_result), |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 933 | le16_to_cpu(cqe_fp->vlan_tag), |
| 934 | le16_to_cpu(cqe_fp->pkt_len_or_gro_seg_len)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 935 | |
| 936 | /* is this a slowpath msg? */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 937 | if (unlikely(CQE_TYPE_SLOW(cqe_fp_type))) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 938 | bnx2x_sp_event(fp, cqe); |
| 939 | goto next_cqe; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 940 | } |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 941 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 942 | rx_buf = &fp->rx_buf_ring[bd_cons]; |
| 943 | data = rx_buf->data; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 944 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 945 | if (!CQE_TYPE_FAST(cqe_fp_type)) { |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 946 | struct bnx2x_agg_info *tpa_info; |
| 947 | u16 frag_size, pages; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 948 | #ifdef BNX2X_STOP_ON_ERROR |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 949 | /* sanity check */ |
| 950 | if (fp->disable_tpa && |
| 951 | (CQE_TYPE_START(cqe_fp_type) || |
| 952 | CQE_TYPE_STOP(cqe_fp_type))) |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 953 | BNX2X_ERR("START/STOP packet while disable_tpa type %x\n", |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 954 | CQE_TYPE(cqe_fp_type)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 955 | #endif |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 956 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 957 | if (CQE_TYPE_START(cqe_fp_type)) { |
| 958 | u16 queue = cqe_fp->queue_index; |
| 959 | DP(NETIF_MSG_RX_STATUS, |
| 960 | "calling tpa_start on queue %d\n", |
| 961 | queue); |
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 | bnx2x_tpa_start(fp, queue, |
| 964 | bd_cons, bd_prod, |
| 965 | cqe_fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 966 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 967 | goto next_rx; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 968 | } |
| 969 | queue = cqe->end_agg_cqe.queue_index; |
| 970 | tpa_info = &fp->tpa_info[queue]; |
| 971 | DP(NETIF_MSG_RX_STATUS, |
| 972 | "calling tpa_stop on queue %d\n", |
| 973 | queue); |
| 974 | |
| 975 | frag_size = le16_to_cpu(cqe->end_agg_cqe.pkt_len) - |
| 976 | tpa_info->len_on_bd; |
| 977 | |
| 978 | if (fp->mode == TPA_MODE_GRO) |
| 979 | pages = (frag_size + tpa_info->full_page - 1) / |
| 980 | tpa_info->full_page; |
| 981 | else |
| 982 | pages = SGE_PAGE_ALIGN(frag_size) >> |
| 983 | SGE_PAGE_SHIFT; |
| 984 | |
| 985 | bnx2x_tpa_stop(bp, fp, tpa_info, pages, |
| 986 | &cqe->end_agg_cqe, comp_ring_cons); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 987 | #ifdef BNX2X_STOP_ON_ERROR |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 988 | if (bp->panic) |
| 989 | return 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 990 | #endif |
| 991 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 992 | bnx2x_update_sge_prod(fp, pages, &cqe->end_agg_cqe); |
| 993 | goto next_cqe; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 994 | } |
| 995 | /* non TPA */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 996 | len = le16_to_cpu(cqe_fp->pkt_len_or_gro_seg_len); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 997 | pad = cqe_fp->placement_offset; |
| 998 | dma_sync_single_for_cpu(&bp->pdev->dev, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 999 | dma_unmap_addr(rx_buf, mapping), |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1000 | pad + RX_COPY_THRESH, |
| 1001 | DMA_FROM_DEVICE); |
| 1002 | pad += NET_SKB_PAD; |
| 1003 | prefetch(data + pad); /* speedup eth_type_trans() */ |
| 1004 | /* is this an error packet? */ |
| 1005 | if (unlikely(cqe_fp_flags & ETH_RX_ERROR_FALGS)) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1006 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1007 | "ERROR flags %x rx packet %u\n", |
| 1008 | cqe_fp_flags, sw_comp_cons); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 1009 | bnx2x_fp_qstats(bp, fp)->rx_err_discard_pkt++; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1010 | goto reuse_rx; |
| 1011 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1012 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1013 | /* Since we don't have a jumbo ring |
| 1014 | * copy small packets if mtu > 1500 |
| 1015 | */ |
| 1016 | if ((bp->dev->mtu > ETH_MAX_PACKET_SIZE) && |
| 1017 | (len <= RX_COPY_THRESH)) { |
| 1018 | skb = netdev_alloc_skb_ip_align(bp->dev, len); |
| 1019 | if (skb == NULL) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1020 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1021 | "ERROR packet dropped because of alloc failure\n"); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 1022 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1023 | goto reuse_rx; |
| 1024 | } |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1025 | memcpy(skb->data, data + pad, len); |
| 1026 | bnx2x_reuse_rx_data(fp, bd_cons, bd_prod); |
| 1027 | } else { |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 1028 | if (likely(bnx2x_alloc_rx_data(bp, fp, bd_prod, |
| 1029 | GFP_ATOMIC) == 0)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1030 | dma_unmap_single(&bp->pdev->dev, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1031 | dma_unmap_addr(rx_buf, mapping), |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1032 | fp->rx_buf_size, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1033 | DMA_FROM_DEVICE); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1034 | skb = build_skb(data, fp->rx_frag_size); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1035 | if (unlikely(!skb)) { |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1036 | bnx2x_frag_free(fp, data); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 1037 | bnx2x_fp_qstats(bp, fp)-> |
| 1038 | rx_skb_alloc_failed++; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1039 | goto next_rx; |
| 1040 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1041 | skb_reserve(skb, pad); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1042 | } else { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1043 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
| 1044 | "ERROR packet dropped because of alloc failure\n"); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 1045 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1046 | reuse_rx: |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1047 | bnx2x_reuse_rx_data(fp, bd_cons, bd_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1048 | goto next_rx; |
| 1049 | } |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 1050 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1051 | |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 1052 | skb_put(skb, len); |
| 1053 | skb->protocol = eth_type_trans(skb, bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1054 | |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 1055 | /* Set Toeplitz hash for a none-LRO skb */ |
Tom Herbert | 5495ab7 | 2013-12-19 08:59:08 -0800 | [diff] [blame] | 1056 | rxhash = bnx2x_get_rxhash(bp, cqe_fp, &rxhash_type); |
| 1057 | skb_set_hash(skb, rxhash, rxhash_type); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1058 | |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 1059 | skb_checksum_none_assert(skb); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 1060 | |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 1061 | if (bp->dev->features & NETIF_F_RXCSUM) |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 1062 | bnx2x_csum_validate(skb, cqe, fp, |
| 1063 | bnx2x_fp_qstats(bp, fp)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1064 | |
Dmitry Kravkov | f233caf | 2011-11-13 04:34:22 +0000 | [diff] [blame] | 1065 | skb_record_rx_queue(skb, fp->rx_queue); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1066 | |
Michal Kalderon | eeed018 | 2014-08-17 16:47:44 +0300 | [diff] [blame] | 1067 | /* Check if this packet was timestamped */ |
Yuval Mintz | 56daf66 | 2014-08-28 08:07:32 +0300 | [diff] [blame] | 1068 | if (unlikely(cqe->fast_path_cqe.type_error_flags & |
Michal Kalderon | eeed018 | 2014-08-17 16:47:44 +0300 | [diff] [blame] | 1069 | (1 << ETH_FAST_PATH_RX_CQE_PTP_PKT_SHIFT))) |
| 1070 | bnx2x_set_rx_ts(bp, skb); |
| 1071 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1072 | if (le16_to_cpu(cqe_fp->pars_flags.flags) & |
| 1073 | PARSING_FLAGS_VLAN) |
Patrick McHardy | 86a9bad | 2013-04-19 02:04:30 +0000 | [diff] [blame] | 1074 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1075 | le16_to_cpu(cqe_fp->vlan_tag)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1076 | |
Eliezer Tamir | 8b80cda | 2013-07-10 17:13:26 +0300 | [diff] [blame] | 1077 | skb_mark_napi_id(skb, &fp->napi); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1078 | |
| 1079 | if (bnx2x_fp_ll_polling(fp)) |
| 1080 | netif_receive_skb(skb); |
| 1081 | else |
| 1082 | napi_gro_receive(&fp->napi, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1083 | next_rx: |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1084 | rx_buf->data = NULL; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1085 | |
| 1086 | bd_cons = NEXT_RX_IDX(bd_cons); |
| 1087 | bd_prod = NEXT_RX_IDX(bd_prod); |
| 1088 | bd_prod_fw = NEXT_RX_IDX(bd_prod_fw); |
| 1089 | rx_pkt++; |
| 1090 | next_cqe: |
| 1091 | sw_comp_prod = NEXT_RCQ_IDX(sw_comp_prod); |
| 1092 | sw_comp_cons = NEXT_RCQ_IDX(sw_comp_cons); |
| 1093 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 1094 | /* mark CQE as free */ |
| 1095 | BNX2X_SEED_CQE(cqe_fp); |
| 1096 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1097 | if (rx_pkt == budget) |
| 1098 | break; |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 1099 | |
| 1100 | comp_ring_cons = RCQ_BD(sw_comp_cons); |
| 1101 | cqe = &fp->rx_comp_ring[comp_ring_cons]; |
| 1102 | cqe_fp = &cqe->fast_path_cqe; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1103 | } /* while */ |
| 1104 | |
| 1105 | fp->rx_bd_cons = bd_cons; |
| 1106 | fp->rx_bd_prod = bd_prod_fw; |
| 1107 | fp->rx_comp_cons = sw_comp_cons; |
| 1108 | fp->rx_comp_prod = sw_comp_prod; |
| 1109 | |
| 1110 | /* Update producers */ |
| 1111 | bnx2x_update_rx_prod(bp, fp, bd_prod_fw, sw_comp_prod, |
| 1112 | fp->rx_sge_prod); |
| 1113 | |
| 1114 | fp->rx_pkt += rx_pkt; |
| 1115 | fp->rx_calls++; |
| 1116 | |
| 1117 | return rx_pkt; |
| 1118 | } |
| 1119 | |
| 1120 | static irqreturn_t bnx2x_msix_fp_int(int irq, void *fp_cookie) |
| 1121 | { |
| 1122 | struct bnx2x_fastpath *fp = fp_cookie; |
| 1123 | struct bnx2x *bp = fp->bp; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1124 | u8 cos; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1125 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1126 | DP(NETIF_MSG_INTR, |
| 1127 | "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] | 1128 | fp->index, fp->fw_sb_id, fp->igu_sb_id); |
Yuval Mintz | ecf01c2 | 2013-04-22 02:53:03 +0000 | [diff] [blame] | 1129 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1130 | 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] | 1131 | |
| 1132 | #ifdef BNX2X_STOP_ON_ERROR |
| 1133 | if (unlikely(bp->panic)) |
| 1134 | return IRQ_HANDLED; |
| 1135 | #endif |
| 1136 | |
| 1137 | /* Handle Rx and Tx according to MSI-X vector */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1138 | for_each_cos_in_tx_queue(fp, cos) |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 1139 | prefetch(fp->txdata_ptr[cos]->tx_cons_sb); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1140 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1141 | prefetch(&fp->sb_running_index[SM_RX_ID]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1142 | napi_schedule(&bnx2x_fp(bp, fp->index, napi)); |
| 1143 | |
| 1144 | return IRQ_HANDLED; |
| 1145 | } |
| 1146 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1147 | /* HW Lock for shared dual port PHYs */ |
| 1148 | void bnx2x_acquire_phy_lock(struct bnx2x *bp) |
| 1149 | { |
| 1150 | mutex_lock(&bp->port.phy_mutex); |
| 1151 | |
Yaniv Rosner | 8203c4b | 2012-11-27 03:46:33 +0000 | [diff] [blame] | 1152 | bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_MDIO); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1153 | } |
| 1154 | |
| 1155 | void bnx2x_release_phy_lock(struct bnx2x *bp) |
| 1156 | { |
Yaniv Rosner | 8203c4b | 2012-11-27 03:46:33 +0000 | [diff] [blame] | 1157 | bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_MDIO); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1158 | |
| 1159 | mutex_unlock(&bp->port.phy_mutex); |
| 1160 | } |
| 1161 | |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1162 | /* calculates MF speed according to current linespeed and MF configuration */ |
| 1163 | u16 bnx2x_get_mf_speed(struct bnx2x *bp) |
| 1164 | { |
| 1165 | u16 line_speed = bp->link_vars.line_speed; |
| 1166 | if (IS_MF(bp)) { |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 1167 | u16 maxCfg = bnx2x_extract_max_cfg(bp, |
| 1168 | bp->mf_config[BP_VN(bp)]); |
| 1169 | |
| 1170 | /* Calculate the current MAX line speed limit for the MF |
| 1171 | * devices |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1172 | */ |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 1173 | if (IS_MF_SI(bp)) |
| 1174 | line_speed = (line_speed * maxCfg) / 100; |
| 1175 | else { /* SD mode */ |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1176 | u16 vn_max_rate = maxCfg * 100; |
| 1177 | |
| 1178 | if (vn_max_rate < line_speed) |
| 1179 | line_speed = vn_max_rate; |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 1180 | } |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1181 | } |
| 1182 | |
| 1183 | return line_speed; |
| 1184 | } |
| 1185 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1186 | /** |
| 1187 | * bnx2x_fill_report_data - fill link report data to report |
| 1188 | * |
| 1189 | * @bp: driver handle |
| 1190 | * @data: link state to update |
| 1191 | * |
| 1192 | * It uses a none-atomic bit operations because is called under the mutex. |
| 1193 | */ |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1194 | static void bnx2x_fill_report_data(struct bnx2x *bp, |
| 1195 | struct bnx2x_link_report_data *data) |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1196 | { |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1197 | memset(data, 0, sizeof(*data)); |
| 1198 | |
Dmitry Kravkov | 6495d15 | 2014-06-26 14:31:04 +0300 | [diff] [blame] | 1199 | if (IS_PF(bp)) { |
| 1200 | /* Fill the report data: effective line speed */ |
| 1201 | data->line_speed = bnx2x_get_mf_speed(bp); |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1202 | |
Dmitry Kravkov | 6495d15 | 2014-06-26 14:31:04 +0300 | [diff] [blame] | 1203 | /* Link is down */ |
| 1204 | if (!bp->link_vars.link_up || (bp->flags & MF_FUNC_DIS)) |
| 1205 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1206 | &data->link_report_flags); |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1207 | |
Dmitry Kravkov | 6495d15 | 2014-06-26 14:31:04 +0300 | [diff] [blame] | 1208 | if (!BNX2X_NUM_ETH_QUEUES(bp)) |
| 1209 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1210 | &data->link_report_flags); |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1211 | |
Dmitry Kravkov | 6495d15 | 2014-06-26 14:31:04 +0300 | [diff] [blame] | 1212 | /* Full DUPLEX */ |
| 1213 | if (bp->link_vars.duplex == DUPLEX_FULL) |
| 1214 | __set_bit(BNX2X_LINK_REPORT_FD, |
| 1215 | &data->link_report_flags); |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1216 | |
Dmitry Kravkov | 6495d15 | 2014-06-26 14:31:04 +0300 | [diff] [blame] | 1217 | /* Rx Flow Control is ON */ |
| 1218 | if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_RX) |
| 1219 | __set_bit(BNX2X_LINK_REPORT_RX_FC_ON, |
| 1220 | &data->link_report_flags); |
| 1221 | |
| 1222 | /* Tx Flow Control is ON */ |
| 1223 | if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX) |
| 1224 | __set_bit(BNX2X_LINK_REPORT_TX_FC_ON, |
| 1225 | &data->link_report_flags); |
| 1226 | } else { /* VF */ |
| 1227 | *data = bp->vf_link_vars; |
| 1228 | } |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1229 | } |
| 1230 | |
| 1231 | /** |
| 1232 | * bnx2x_link_report - report link status to OS. |
| 1233 | * |
| 1234 | * @bp: driver handle |
| 1235 | * |
| 1236 | * Calls the __bnx2x_link_report() under the same locking scheme |
| 1237 | * as a link/PHY state managing code to ensure a consistent link |
| 1238 | * reporting. |
| 1239 | */ |
| 1240 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1241 | void bnx2x_link_report(struct bnx2x *bp) |
| 1242 | { |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1243 | bnx2x_acquire_phy_lock(bp); |
| 1244 | __bnx2x_link_report(bp); |
| 1245 | bnx2x_release_phy_lock(bp); |
| 1246 | } |
| 1247 | |
| 1248 | /** |
| 1249 | * __bnx2x_link_report - report link status to OS. |
| 1250 | * |
| 1251 | * @bp: driver handle |
| 1252 | * |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 1253 | * None atomic implementation. |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1254 | * Should be called under the phy_lock. |
| 1255 | */ |
| 1256 | void __bnx2x_link_report(struct bnx2x *bp) |
| 1257 | { |
| 1258 | struct bnx2x_link_report_data cur_data; |
| 1259 | |
| 1260 | /* reread mf_cfg */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1261 | if (IS_PF(bp) && !CHIP_IS_E1(bp)) |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1262 | bnx2x_read_mf_cfg(bp); |
| 1263 | |
| 1264 | /* Read the current link report info */ |
| 1265 | bnx2x_fill_report_data(bp, &cur_data); |
| 1266 | |
| 1267 | /* Don't report link down or exactly the same link status twice */ |
| 1268 | if (!memcmp(&cur_data, &bp->last_reported_link, sizeof(cur_data)) || |
| 1269 | (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1270 | &bp->last_reported_link.link_report_flags) && |
| 1271 | test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1272 | &cur_data.link_report_flags))) |
| 1273 | return; |
| 1274 | |
| 1275 | bp->link_cnt++; |
| 1276 | |
| 1277 | /* We are going to report a new link parameters now - |
| 1278 | * remember the current data for the next time. |
| 1279 | */ |
| 1280 | memcpy(&bp->last_reported_link, &cur_data, sizeof(cur_data)); |
| 1281 | |
Dmitry Kravkov | 6495d15 | 2014-06-26 14:31:04 +0300 | [diff] [blame] | 1282 | /* propagate status to VFs */ |
| 1283 | if (IS_PF(bp)) |
| 1284 | bnx2x_iov_link_update(bp); |
| 1285 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1286 | if (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1287 | &cur_data.link_report_flags)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1288 | netif_carrier_off(bp->dev); |
| 1289 | netdev_err(bp->dev, "NIC Link is Down\n"); |
| 1290 | return; |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1291 | } else { |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1292 | const char *duplex; |
| 1293 | const char *flow; |
| 1294 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1295 | netif_carrier_on(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1296 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1297 | if (test_and_clear_bit(BNX2X_LINK_REPORT_FD, |
| 1298 | &cur_data.link_report_flags)) |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1299 | duplex = "full"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1300 | else |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1301 | duplex = "half"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1302 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1303 | /* Handle the FC at the end so that only these flags would be |
| 1304 | * possibly set. This way we may easily check if there is no FC |
| 1305 | * enabled. |
| 1306 | */ |
| 1307 | if (cur_data.link_report_flags) { |
| 1308 | if (test_bit(BNX2X_LINK_REPORT_RX_FC_ON, |
| 1309 | &cur_data.link_report_flags)) { |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1310 | if (test_bit(BNX2X_LINK_REPORT_TX_FC_ON, |
| 1311 | &cur_data.link_report_flags)) |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1312 | flow = "ON - receive & transmit"; |
| 1313 | else |
| 1314 | flow = "ON - receive"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1315 | } else { |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1316 | flow = "ON - transmit"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1317 | } |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1318 | } else { |
| 1319 | flow = "none"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1320 | } |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1321 | netdev_info(bp->dev, "NIC Link is Up, %d Mbps %s duplex, Flow control: %s\n", |
| 1322 | cur_data.line_speed, duplex, flow); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1323 | } |
| 1324 | } |
| 1325 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1326 | static void bnx2x_set_next_page_sgl(struct bnx2x_fastpath *fp) |
| 1327 | { |
| 1328 | int i; |
| 1329 | |
| 1330 | for (i = 1; i <= NUM_RX_SGE_PAGES; i++) { |
| 1331 | struct eth_rx_sge *sge; |
| 1332 | |
| 1333 | sge = &fp->rx_sge_ring[RX_SGE_CNT * i - 2]; |
| 1334 | sge->addr_hi = |
| 1335 | cpu_to_le32(U64_HI(fp->rx_sge_mapping + |
| 1336 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); |
| 1337 | |
| 1338 | sge->addr_lo = |
| 1339 | cpu_to_le32(U64_LO(fp->rx_sge_mapping + |
| 1340 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); |
| 1341 | } |
| 1342 | } |
| 1343 | |
| 1344 | static void bnx2x_free_tpa_pool(struct bnx2x *bp, |
| 1345 | struct bnx2x_fastpath *fp, int last) |
| 1346 | { |
| 1347 | int i; |
| 1348 | |
| 1349 | for (i = 0; i < last; i++) { |
| 1350 | struct bnx2x_agg_info *tpa_info = &fp->tpa_info[i]; |
| 1351 | struct sw_rx_bd *first_buf = &tpa_info->first_buf; |
| 1352 | u8 *data = first_buf->data; |
| 1353 | |
| 1354 | if (data == NULL) { |
| 1355 | DP(NETIF_MSG_IFDOWN, "tpa bin %d empty on free\n", i); |
| 1356 | continue; |
| 1357 | } |
| 1358 | if (tpa_info->tpa_state == BNX2X_TPA_START) |
| 1359 | dma_unmap_single(&bp->pdev->dev, |
| 1360 | dma_unmap_addr(first_buf, mapping), |
| 1361 | fp->rx_buf_size, DMA_FROM_DEVICE); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1362 | bnx2x_frag_free(fp, data); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1363 | first_buf->data = NULL; |
| 1364 | } |
| 1365 | } |
| 1366 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1367 | void bnx2x_init_rx_rings_cnic(struct bnx2x *bp) |
| 1368 | { |
| 1369 | int j; |
| 1370 | |
| 1371 | for_each_rx_queue_cnic(bp, j) { |
| 1372 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1373 | |
| 1374 | fp->rx_bd_cons = 0; |
| 1375 | |
| 1376 | /* Activate BD ring */ |
| 1377 | /* Warning! |
| 1378 | * this will generate an interrupt (to the TSTORM) |
| 1379 | * must only be done after chip is initialized |
| 1380 | */ |
| 1381 | bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod, |
| 1382 | fp->rx_sge_prod); |
| 1383 | } |
| 1384 | } |
| 1385 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1386 | void bnx2x_init_rx_rings(struct bnx2x *bp) |
| 1387 | { |
| 1388 | int func = BP_FUNC(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1389 | u16 ring_prod; |
| 1390 | int i, j; |
| 1391 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1392 | /* Allocate TPA resources */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1393 | for_each_eth_queue(bp, j) { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1394 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1395 | |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1396 | DP(NETIF_MSG_IFUP, |
| 1397 | "mtu %d rx_buf_size %d\n", bp->dev->mtu, fp->rx_buf_size); |
| 1398 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1399 | if (!fp->disable_tpa) { |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 1400 | /* Fill the per-aggregation pool */ |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 1401 | for (i = 0; i < MAX_AGG_QS(bp); i++) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1402 | struct bnx2x_agg_info *tpa_info = |
| 1403 | &fp->tpa_info[i]; |
| 1404 | struct sw_rx_bd *first_buf = |
| 1405 | &tpa_info->first_buf; |
| 1406 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 1407 | first_buf->data = |
| 1408 | bnx2x_frag_alloc(fp, GFP_KERNEL); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1409 | if (!first_buf->data) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1410 | BNX2X_ERR("Failed to allocate TPA skb pool for queue[%d] - disabling TPA on this queue!\n", |
| 1411 | j); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1412 | bnx2x_free_tpa_pool(bp, fp, i); |
| 1413 | fp->disable_tpa = 1; |
| 1414 | break; |
| 1415 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1416 | dma_unmap_addr_set(first_buf, mapping, 0); |
| 1417 | tpa_info->tpa_state = BNX2X_TPA_STOP; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1418 | } |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1419 | |
| 1420 | /* "next page" elements initialization */ |
| 1421 | bnx2x_set_next_page_sgl(fp); |
| 1422 | |
| 1423 | /* set SGEs bit mask */ |
| 1424 | bnx2x_init_sge_ring_bit_mask(fp); |
| 1425 | |
| 1426 | /* Allocate SGEs and initialize the ring elements */ |
| 1427 | for (i = 0, ring_prod = 0; |
| 1428 | i < MAX_RX_SGE_CNT*NUM_RX_SGE_PAGES; i++) { |
| 1429 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 1430 | if (bnx2x_alloc_rx_sge(bp, fp, ring_prod, |
| 1431 | GFP_KERNEL) < 0) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1432 | BNX2X_ERR("was only able to allocate %d rx sges\n", |
| 1433 | i); |
| 1434 | BNX2X_ERR("disabling TPA for queue[%d]\n", |
| 1435 | j); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1436 | /* Cleanup already allocated elements */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1437 | bnx2x_free_rx_sge_range(bp, fp, |
| 1438 | ring_prod); |
| 1439 | bnx2x_free_tpa_pool(bp, fp, |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 1440 | MAX_AGG_QS(bp)); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1441 | fp->disable_tpa = 1; |
| 1442 | ring_prod = 0; |
| 1443 | break; |
| 1444 | } |
| 1445 | ring_prod = NEXT_SGE_IDX(ring_prod); |
| 1446 | } |
| 1447 | |
| 1448 | fp->rx_sge_prod = ring_prod; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1449 | } |
| 1450 | } |
| 1451 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1452 | for_each_eth_queue(bp, j) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1453 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1454 | |
| 1455 | fp->rx_bd_cons = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1456 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1457 | /* Activate BD ring */ |
| 1458 | /* Warning! |
| 1459 | * this will generate an interrupt (to the TSTORM) |
| 1460 | * must only be done after chip is initialized |
| 1461 | */ |
| 1462 | bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod, |
| 1463 | fp->rx_sge_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1464 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1465 | if (j != 0) |
| 1466 | continue; |
| 1467 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1468 | if (CHIP_IS_E1(bp)) { |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 1469 | REG_WR(bp, BAR_USTRORM_INTMEM + |
| 1470 | USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func), |
| 1471 | U64_LO(fp->rx_comp_mapping)); |
| 1472 | REG_WR(bp, BAR_USTRORM_INTMEM + |
| 1473 | USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func) + 4, |
| 1474 | U64_HI(fp->rx_comp_mapping)); |
| 1475 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1476 | } |
| 1477 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 1478 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1479 | static void bnx2x_free_tx_skbs_queue(struct bnx2x_fastpath *fp) |
| 1480 | { |
| 1481 | u8 cos; |
| 1482 | struct bnx2x *bp = fp->bp; |
| 1483 | |
| 1484 | for_each_cos_in_tx_queue(fp, cos) { |
| 1485 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
| 1486 | unsigned pkts_compl = 0, bytes_compl = 0; |
| 1487 | |
| 1488 | u16 sw_prod = txdata->tx_pkt_prod; |
| 1489 | u16 sw_cons = txdata->tx_pkt_cons; |
| 1490 | |
| 1491 | while (sw_cons != sw_prod) { |
| 1492 | bnx2x_free_tx_pkt(bp, txdata, TX_BD(sw_cons), |
| 1493 | &pkts_compl, &bytes_compl); |
| 1494 | sw_cons++; |
| 1495 | } |
| 1496 | |
| 1497 | netdev_tx_reset_queue( |
| 1498 | netdev_get_tx_queue(bp->dev, |
| 1499 | txdata->txq_index)); |
| 1500 | } |
| 1501 | } |
| 1502 | |
| 1503 | static void bnx2x_free_tx_skbs_cnic(struct bnx2x *bp) |
| 1504 | { |
| 1505 | int i; |
| 1506 | |
| 1507 | for_each_tx_queue_cnic(bp, i) { |
| 1508 | bnx2x_free_tx_skbs_queue(&bp->fp[i]); |
| 1509 | } |
| 1510 | } |
| 1511 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1512 | static void bnx2x_free_tx_skbs(struct bnx2x *bp) |
| 1513 | { |
| 1514 | int i; |
| 1515 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1516 | for_each_eth_queue(bp, i) { |
| 1517 | bnx2x_free_tx_skbs_queue(&bp->fp[i]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1518 | } |
| 1519 | } |
| 1520 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1521 | static void bnx2x_free_rx_bds(struct bnx2x_fastpath *fp) |
| 1522 | { |
| 1523 | struct bnx2x *bp = fp->bp; |
| 1524 | int i; |
| 1525 | |
| 1526 | /* ring wasn't allocated */ |
| 1527 | if (fp->rx_buf_ring == NULL) |
| 1528 | return; |
| 1529 | |
| 1530 | for (i = 0; i < NUM_RX_BD; i++) { |
| 1531 | struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[i]; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1532 | u8 *data = rx_buf->data; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1533 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1534 | if (data == NULL) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1535 | continue; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1536 | dma_unmap_single(&bp->pdev->dev, |
| 1537 | dma_unmap_addr(rx_buf, mapping), |
| 1538 | fp->rx_buf_size, DMA_FROM_DEVICE); |
| 1539 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1540 | rx_buf->data = NULL; |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1541 | bnx2x_frag_free(fp, data); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1542 | } |
| 1543 | } |
| 1544 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1545 | static void bnx2x_free_rx_skbs_cnic(struct bnx2x *bp) |
| 1546 | { |
| 1547 | int j; |
| 1548 | |
| 1549 | for_each_rx_queue_cnic(bp, j) { |
| 1550 | bnx2x_free_rx_bds(&bp->fp[j]); |
| 1551 | } |
| 1552 | } |
| 1553 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1554 | static void bnx2x_free_rx_skbs(struct bnx2x *bp) |
| 1555 | { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1556 | int j; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1557 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1558 | for_each_eth_queue(bp, j) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1559 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1560 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1561 | bnx2x_free_rx_bds(fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1562 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1563 | if (!fp->disable_tpa) |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 1564 | bnx2x_free_tpa_pool(bp, fp, MAX_AGG_QS(bp)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1565 | } |
| 1566 | } |
| 1567 | |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 1568 | static void bnx2x_free_skbs_cnic(struct bnx2x *bp) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1569 | { |
| 1570 | bnx2x_free_tx_skbs_cnic(bp); |
| 1571 | bnx2x_free_rx_skbs_cnic(bp); |
| 1572 | } |
| 1573 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1574 | void bnx2x_free_skbs(struct bnx2x *bp) |
| 1575 | { |
| 1576 | bnx2x_free_tx_skbs(bp); |
| 1577 | bnx2x_free_rx_skbs(bp); |
| 1578 | } |
| 1579 | |
Dmitry Kravkov | e3835b9 | 2011-03-06 10:50:44 +0000 | [diff] [blame] | 1580 | void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value) |
| 1581 | { |
| 1582 | /* load old values */ |
| 1583 | u32 mf_cfg = bp->mf_config[BP_VN(bp)]; |
| 1584 | |
| 1585 | if (value != bnx2x_extract_max_cfg(bp, mf_cfg)) { |
| 1586 | /* leave all but MAX value */ |
| 1587 | mf_cfg &= ~FUNC_MF_CFG_MAX_BW_MASK; |
| 1588 | |
| 1589 | /* set new MAX value */ |
| 1590 | mf_cfg |= (value << FUNC_MF_CFG_MAX_BW_SHIFT) |
| 1591 | & FUNC_MF_CFG_MAX_BW_MASK; |
| 1592 | |
| 1593 | bnx2x_fw_command(bp, DRV_MSG_CODE_SET_MF_BW, mf_cfg); |
| 1594 | } |
| 1595 | } |
| 1596 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1597 | /** |
| 1598 | * bnx2x_free_msix_irqs - free previously requested MSI-X IRQ vectors |
| 1599 | * |
| 1600 | * @bp: driver handle |
| 1601 | * @nvecs: number of vectors to be released |
| 1602 | */ |
| 1603 | static void bnx2x_free_msix_irqs(struct bnx2x *bp, int nvecs) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1604 | { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1605 | int i, offset = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1606 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1607 | if (nvecs == offset) |
| 1608 | return; |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1609 | |
| 1610 | /* VFs don't have a default SB */ |
| 1611 | if (IS_PF(bp)) { |
| 1612 | free_irq(bp->msix_table[offset].vector, bp->dev); |
| 1613 | DP(NETIF_MSG_IFDOWN, "released sp irq (%d)\n", |
| 1614 | bp->msix_table[offset].vector); |
| 1615 | offset++; |
| 1616 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1617 | |
| 1618 | if (CNIC_SUPPORT(bp)) { |
| 1619 | if (nvecs == offset) |
| 1620 | return; |
| 1621 | offset++; |
| 1622 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1623 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1624 | for_each_eth_queue(bp, i) { |
| 1625 | if (nvecs == offset) |
| 1626 | return; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1627 | DP(NETIF_MSG_IFDOWN, "about to release fp #%d->%d irq\n", |
| 1628 | i, bp->msix_table[offset].vector); |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1629 | |
| 1630 | free_irq(bp->msix_table[offset++].vector, &bp->fp[i]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1631 | } |
| 1632 | } |
| 1633 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1634 | void bnx2x_free_irq(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1635 | { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1636 | if (bp->flags & USING_MSIX_FLAG && |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1637 | !(bp->flags & USING_SINGLE_MSIX_FLAG)) { |
| 1638 | int nvecs = BNX2X_NUM_ETH_QUEUES(bp) + CNIC_SUPPORT(bp); |
| 1639 | |
| 1640 | /* vfs don't have a default status block */ |
| 1641 | if (IS_PF(bp)) |
| 1642 | nvecs++; |
| 1643 | |
| 1644 | bnx2x_free_msix_irqs(bp, nvecs); |
| 1645 | } else { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1646 | free_irq(bp->dev->irq, bp->dev); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1647 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1648 | } |
| 1649 | |
Merav Sicron | 0e8d2ec | 2012-06-19 07:48:30 +0000 | [diff] [blame] | 1650 | int bnx2x_enable_msix(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1651 | { |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1652 | int msix_vec = 0, i, rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1653 | |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1654 | /* VFs don't have a default status block */ |
| 1655 | if (IS_PF(bp)) { |
| 1656 | bp->msix_table[msix_vec].entry = msix_vec; |
| 1657 | BNX2X_DEV_INFO("msix_table[0].entry = %d (slowpath)\n", |
| 1658 | bp->msix_table[0].entry); |
| 1659 | msix_vec++; |
| 1660 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1661 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1662 | /* Cnic requires an msix vector for itself */ |
| 1663 | if (CNIC_SUPPORT(bp)) { |
| 1664 | bp->msix_table[msix_vec].entry = msix_vec; |
| 1665 | BNX2X_DEV_INFO("msix_table[%d].entry = %d (CNIC)\n", |
| 1666 | msix_vec, bp->msix_table[msix_vec].entry); |
| 1667 | msix_vec++; |
| 1668 | } |
| 1669 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1670 | /* We need separate vectors for ETH queues only (not FCoE) */ |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1671 | for_each_eth_queue(bp, i) { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1672 | bp->msix_table[msix_vec].entry = msix_vec; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1673 | BNX2X_DEV_INFO("msix_table[%d].entry = %d (fastpath #%u)\n", |
| 1674 | msix_vec, msix_vec, i); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1675 | msix_vec++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1676 | } |
| 1677 | |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1678 | DP(BNX2X_MSG_SP, "about to request enable msix with %d vectors\n", |
| 1679 | msix_vec); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1680 | |
Alexander Gordeev | a5444b1 | 2014-02-18 11:07:54 +0100 | [diff] [blame] | 1681 | rc = pci_enable_msix_range(bp->pdev, &bp->msix_table[0], |
| 1682 | BNX2X_MIN_MSIX_VEC_CNT(bp), msix_vec); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1683 | /* |
| 1684 | * reconfigure number of tx/rx queues according to available |
| 1685 | * MSI-X vectors |
| 1686 | */ |
Alexander Gordeev | a5444b1 | 2014-02-18 11:07:54 +0100 | [diff] [blame] | 1687 | if (rc == -ENOSPC) { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1688 | /* Get by with single vector */ |
Alexander Gordeev | a5444b1 | 2014-02-18 11:07:54 +0100 | [diff] [blame] | 1689 | rc = pci_enable_msix_range(bp->pdev, &bp->msix_table[0], 1, 1); |
| 1690 | if (rc < 0) { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1691 | BNX2X_DEV_INFO("Single MSI-X is not attainable rc %d\n", |
| 1692 | rc); |
| 1693 | goto no_msix; |
| 1694 | } |
| 1695 | |
| 1696 | BNX2X_DEV_INFO("Using single MSI-X vector\n"); |
| 1697 | bp->flags |= USING_SINGLE_MSIX_FLAG; |
| 1698 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1699 | BNX2X_DEV_INFO("set number of queues to 1\n"); |
| 1700 | bp->num_ethernet_queues = 1; |
| 1701 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1702 | } else if (rc < 0) { |
Alexander Gordeev | a5444b1 | 2014-02-18 11:07:54 +0100 | [diff] [blame] | 1703 | BNX2X_DEV_INFO("MSI-X is not attainable rc %d\n", rc); |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1704 | goto no_msix; |
Alexander Gordeev | a5444b1 | 2014-02-18 11:07:54 +0100 | [diff] [blame] | 1705 | } else if (rc < msix_vec) { |
| 1706 | /* how less vectors we will have? */ |
| 1707 | int diff = msix_vec - rc; |
| 1708 | |
| 1709 | BNX2X_DEV_INFO("Trying to use less MSI-X vectors: %d\n", rc); |
| 1710 | |
| 1711 | /* |
| 1712 | * decrease number of queues by number of unallocated entries |
| 1713 | */ |
| 1714 | bp->num_ethernet_queues -= diff; |
| 1715 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; |
| 1716 | |
| 1717 | BNX2X_DEV_INFO("New queue configuration set: %d\n", |
| 1718 | bp->num_queues); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1719 | } |
| 1720 | |
| 1721 | bp->flags |= USING_MSIX_FLAG; |
| 1722 | |
| 1723 | return 0; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1724 | |
| 1725 | no_msix: |
| 1726 | /* fall to INTx if not enough memory */ |
| 1727 | if (rc == -ENOMEM) |
| 1728 | bp->flags |= DISABLE_MSI_FLAG; |
| 1729 | |
| 1730 | return rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1731 | } |
| 1732 | |
| 1733 | static int bnx2x_req_msix_irqs(struct bnx2x *bp) |
| 1734 | { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1735 | int i, rc, offset = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1736 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1737 | /* no default status block for vf */ |
| 1738 | if (IS_PF(bp)) { |
| 1739 | rc = request_irq(bp->msix_table[offset++].vector, |
| 1740 | bnx2x_msix_sp_int, 0, |
| 1741 | bp->dev->name, bp->dev); |
| 1742 | if (rc) { |
| 1743 | BNX2X_ERR("request sp irq failed\n"); |
| 1744 | return -EBUSY; |
| 1745 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1746 | } |
| 1747 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1748 | if (CNIC_SUPPORT(bp)) |
| 1749 | offset++; |
| 1750 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1751 | for_each_eth_queue(bp, i) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1752 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
| 1753 | snprintf(fp->name, sizeof(fp->name), "%s-fp-%d", |
| 1754 | bp->dev->name, i); |
| 1755 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1756 | rc = request_irq(bp->msix_table[offset].vector, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1757 | bnx2x_msix_fp_int, 0, fp->name, fp); |
| 1758 | if (rc) { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1759 | BNX2X_ERR("request fp #%d irq (%d) failed rc %d\n", i, |
| 1760 | bp->msix_table[offset].vector, rc); |
| 1761 | bnx2x_free_msix_irqs(bp, offset); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1762 | return -EBUSY; |
| 1763 | } |
| 1764 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1765 | offset++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1766 | } |
| 1767 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1768 | i = BNX2X_NUM_ETH_QUEUES(bp); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1769 | if (IS_PF(bp)) { |
| 1770 | offset = 1 + CNIC_SUPPORT(bp); |
| 1771 | netdev_info(bp->dev, |
| 1772 | "using MSI-X IRQs: sp %d fp[%d] %d ... fp[%d] %d\n", |
| 1773 | bp->msix_table[0].vector, |
| 1774 | 0, bp->msix_table[offset].vector, |
| 1775 | i - 1, bp->msix_table[offset + i - 1].vector); |
| 1776 | } else { |
| 1777 | offset = CNIC_SUPPORT(bp); |
| 1778 | netdev_info(bp->dev, |
| 1779 | "using MSI-X IRQs: fp[%d] %d ... fp[%d] %d\n", |
| 1780 | 0, bp->msix_table[offset].vector, |
| 1781 | i - 1, bp->msix_table[offset + i - 1].vector); |
| 1782 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1783 | return 0; |
| 1784 | } |
| 1785 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1786 | int bnx2x_enable_msi(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1787 | { |
| 1788 | int rc; |
| 1789 | |
| 1790 | rc = pci_enable_msi(bp->pdev); |
| 1791 | if (rc) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1792 | BNX2X_DEV_INFO("MSI is not attainable\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1793 | return -1; |
| 1794 | } |
| 1795 | bp->flags |= USING_MSI_FLAG; |
| 1796 | |
| 1797 | return 0; |
| 1798 | } |
| 1799 | |
| 1800 | static int bnx2x_req_irq(struct bnx2x *bp) |
| 1801 | { |
| 1802 | unsigned long flags; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1803 | unsigned int irq; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1804 | |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1805 | if (bp->flags & (USING_MSI_FLAG | USING_MSIX_FLAG)) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1806 | flags = 0; |
| 1807 | else |
| 1808 | flags = IRQF_SHARED; |
| 1809 | |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1810 | if (bp->flags & USING_MSIX_FLAG) |
| 1811 | irq = bp->msix_table[0].vector; |
| 1812 | else |
| 1813 | irq = bp->pdev->irq; |
| 1814 | |
| 1815 | return request_irq(irq, bnx2x_interrupt, flags, bp->dev->name, bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1816 | } |
| 1817 | |
Yuval Mintz | c957d09 | 2013-06-25 08:50:11 +0300 | [diff] [blame] | 1818 | static int bnx2x_setup_irqs(struct bnx2x *bp) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1819 | { |
| 1820 | int rc = 0; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1821 | if (bp->flags & USING_MSIX_FLAG && |
| 1822 | !(bp->flags & USING_SINGLE_MSIX_FLAG)) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1823 | rc = bnx2x_req_msix_irqs(bp); |
| 1824 | if (rc) |
| 1825 | return rc; |
| 1826 | } else { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1827 | rc = bnx2x_req_irq(bp); |
| 1828 | if (rc) { |
| 1829 | BNX2X_ERR("IRQ request failed rc %d, aborting\n", rc); |
| 1830 | return rc; |
| 1831 | } |
| 1832 | if (bp->flags & USING_MSI_FLAG) { |
| 1833 | bp->dev->irq = bp->pdev->irq; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1834 | netdev_info(bp->dev, "using MSI IRQ %d\n", |
| 1835 | bp->dev->irq); |
| 1836 | } |
| 1837 | if (bp->flags & USING_MSIX_FLAG) { |
| 1838 | bp->dev->irq = bp->msix_table[0].vector; |
| 1839 | netdev_info(bp->dev, "using MSIX IRQ %d\n", |
| 1840 | bp->dev->irq); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1841 | } |
| 1842 | } |
| 1843 | |
| 1844 | return 0; |
| 1845 | } |
| 1846 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1847 | static void bnx2x_napi_enable_cnic(struct bnx2x *bp) |
| 1848 | { |
| 1849 | int i; |
| 1850 | |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1851 | for_each_rx_queue_cnic(bp, i) { |
| 1852 | bnx2x_fp_init_lock(&bp->fp[i]); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1853 | napi_enable(&bnx2x_fp(bp, i, napi)); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1854 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1855 | } |
| 1856 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1857 | static void bnx2x_napi_enable(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1858 | { |
| 1859 | int i; |
| 1860 | |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1861 | for_each_eth_queue(bp, i) { |
| 1862 | bnx2x_fp_init_lock(&bp->fp[i]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1863 | napi_enable(&bnx2x_fp(bp, i, napi)); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1864 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1865 | } |
| 1866 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1867 | static void bnx2x_napi_disable_cnic(struct bnx2x *bp) |
| 1868 | { |
| 1869 | int i; |
| 1870 | |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1871 | for_each_rx_queue_cnic(bp, i) { |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1872 | napi_disable(&bnx2x_fp(bp, i, napi)); |
Yuval Mintz | 9a2620c | 2014-01-07 12:07:41 +0200 | [diff] [blame] | 1873 | while (!bnx2x_fp_ll_disable(&bp->fp[i])) |
| 1874 | usleep_range(1000, 2000); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1875 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1876 | } |
| 1877 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1878 | static void bnx2x_napi_disable(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1879 | { |
| 1880 | int i; |
| 1881 | |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1882 | for_each_eth_queue(bp, i) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1883 | napi_disable(&bnx2x_fp(bp, i, napi)); |
Yuval Mintz | 9a2620c | 2014-01-07 12:07:41 +0200 | [diff] [blame] | 1884 | while (!bnx2x_fp_ll_disable(&bp->fp[i])) |
| 1885 | usleep_range(1000, 2000); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1886 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1887 | } |
| 1888 | |
| 1889 | void bnx2x_netif_start(struct bnx2x *bp) |
| 1890 | { |
Dmitry Kravkov | 4b7ed89 | 2011-06-14 01:32:53 +0000 | [diff] [blame] | 1891 | if (netif_running(bp->dev)) { |
| 1892 | bnx2x_napi_enable(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1893 | if (CNIC_LOADED(bp)) |
| 1894 | bnx2x_napi_enable_cnic(bp); |
Dmitry Kravkov | 4b7ed89 | 2011-06-14 01:32:53 +0000 | [diff] [blame] | 1895 | bnx2x_int_enable(bp); |
| 1896 | if (bp->state == BNX2X_STATE_OPEN) |
| 1897 | netif_tx_wake_all_queues(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1898 | } |
| 1899 | } |
| 1900 | |
| 1901 | void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw) |
| 1902 | { |
| 1903 | bnx2x_int_disable_sync(bp, disable_hw); |
| 1904 | bnx2x_napi_disable(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1905 | if (CNIC_LOADED(bp)) |
| 1906 | bnx2x_napi_disable_cnic(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1907 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1908 | |
Jason Wang | f663dd9 | 2014-01-10 16:18:26 +0800 | [diff] [blame] | 1909 | u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb, |
Daniel Borkmann | 99932d4 | 2014-02-16 15:55:20 +0100 | [diff] [blame] | 1910 | void *accel_priv, select_queue_fallback_t fallback) |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1911 | { |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1912 | struct bnx2x *bp = netdev_priv(dev); |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1913 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1914 | if (CNIC_LOADED(bp) && !NO_FCOE(bp)) { |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1915 | struct ethhdr *hdr = (struct ethhdr *)skb->data; |
| 1916 | u16 ether_type = ntohs(hdr->h_proto); |
| 1917 | |
| 1918 | /* Skip VLAN tag if present */ |
| 1919 | if (ether_type == ETH_P_8021Q) { |
| 1920 | struct vlan_ethhdr *vhdr = |
| 1921 | (struct vlan_ethhdr *)skb->data; |
| 1922 | |
| 1923 | ether_type = ntohs(vhdr->h_vlan_encapsulated_proto); |
| 1924 | } |
| 1925 | |
| 1926 | /* If ethertype is FCoE or FIP - use FCoE ring */ |
| 1927 | if ((ether_type == ETH_P_FCOE) || (ether_type == ETH_P_FIP)) |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1928 | return bnx2x_fcoe_tx(bp, txq_index); |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1929 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1930 | |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1931 | /* select a non-FCoE queue */ |
Daniel Borkmann | 99932d4 | 2014-02-16 15:55:20 +0100 | [diff] [blame] | 1932 | return fallback(dev, skb) % BNX2X_NUM_ETH_QUEUES(bp); |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1933 | } |
| 1934 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1935 | void bnx2x_set_num_queues(struct bnx2x *bp) |
| 1936 | { |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1937 | /* RSS queues */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1938 | bp->num_ethernet_queues = bnx2x_calc_num_queues(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1939 | |
Barak Witkowski | a334872 | 2012-04-23 03:04:46 +0000 | [diff] [blame] | 1940 | /* override in STORAGE SD modes */ |
| 1941 | if (IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp)) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1942 | bp->num_ethernet_queues = 1; |
| 1943 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1944 | /* Add special queues */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1945 | bp->num_cnic_queues = CNIC_SUPPORT(bp); /* For FCOE */ |
| 1946 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 1947 | |
| 1948 | 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] | 1949 | } |
| 1950 | |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1951 | /** |
| 1952 | * bnx2x_set_real_num_queues - configure netdev->real_num_[tx,rx]_queues |
| 1953 | * |
| 1954 | * @bp: Driver handle |
| 1955 | * |
| 1956 | * We currently support for at most 16 Tx queues for each CoS thus we will |
| 1957 | * allocate a multiple of 16 for ETH L2 rings according to the value of the |
| 1958 | * bp->max_cos. |
| 1959 | * |
| 1960 | * If there is an FCoE L2 queue the appropriate Tx queue will have the next |
| 1961 | * index after all ETH L2 indices. |
| 1962 | * |
| 1963 | * If the actual number of Tx queues (for each CoS) is less than 16 then there |
| 1964 | * 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] | 1965 | * 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] | 1966 | * |
| 1967 | * The proper configuration of skb->queue_mapping is handled by |
| 1968 | * bnx2x_select_queue() and __skb_tx_hash(). |
| 1969 | * |
| 1970 | * bnx2x_setup_tc() takes care of the proper TC mappings so that __skb_tx_hash() |
| 1971 | * will return a proper Tx index if TC is enabled (netdev->num_tc > 0). |
| 1972 | */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1973 | 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] | 1974 | { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1975 | int rc, tx, rx; |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1976 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 1977 | tx = BNX2X_NUM_ETH_QUEUES(bp) * bp->max_cos; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1978 | rx = BNX2X_NUM_ETH_QUEUES(bp); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1979 | |
| 1980 | /* account for fcoe queue */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1981 | if (include_cnic && !NO_FCOE(bp)) { |
| 1982 | rx++; |
| 1983 | tx++; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1984 | } |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1985 | |
| 1986 | rc = netif_set_real_num_tx_queues(bp->dev, tx); |
| 1987 | if (rc) { |
| 1988 | BNX2X_ERR("Failed to set real number of Tx queues: %d\n", rc); |
| 1989 | return rc; |
| 1990 | } |
| 1991 | rc = netif_set_real_num_rx_queues(bp->dev, rx); |
| 1992 | if (rc) { |
| 1993 | BNX2X_ERR("Failed to set real number of Rx queues: %d\n", rc); |
| 1994 | return rc; |
| 1995 | } |
| 1996 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1997 | 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] | 1998 | tx, rx); |
| 1999 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 2000 | return rc; |
| 2001 | } |
| 2002 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2003 | static void bnx2x_set_rx_buf_size(struct bnx2x *bp) |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 2004 | { |
| 2005 | int i; |
| 2006 | |
| 2007 | for_each_queue(bp, i) { |
| 2008 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 2009 | u32 mtu; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 2010 | |
| 2011 | /* Always use a mini-jumbo MTU for the FCoE L2 ring */ |
| 2012 | if (IS_FCOE_IDX(i)) |
| 2013 | /* |
| 2014 | * Although there are no IP frames expected to arrive to |
| 2015 | * this ring we still want to add an |
| 2016 | * IP_HEADER_ALIGNMENT_PADDING to prevent a buffer |
| 2017 | * overrun attack. |
| 2018 | */ |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 2019 | mtu = BNX2X_FCOE_MINI_JUMBO_MTU; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 2020 | else |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 2021 | mtu = bp->dev->mtu; |
| 2022 | fp->rx_buf_size = BNX2X_FW_RX_ALIGN_START + |
| 2023 | IP_HEADER_ALIGNMENT_PADDING + |
| 2024 | ETH_OVREHEAD + |
| 2025 | mtu + |
| 2026 | BNX2X_FW_RX_ALIGN_END; |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2027 | /* Note : rx_buf_size doesn't take into account NET_SKB_PAD */ |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 2028 | if (fp->rx_buf_size + NET_SKB_PAD <= PAGE_SIZE) |
| 2029 | fp->rx_frag_size = fp->rx_buf_size + NET_SKB_PAD; |
| 2030 | else |
| 2031 | fp->rx_frag_size = 0; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 2032 | } |
| 2033 | } |
| 2034 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2035 | static int bnx2x_init_rss(struct bnx2x *bp) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2036 | { |
| 2037 | int i; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2038 | u8 num_eth_queues = BNX2X_NUM_ETH_QUEUES(bp); |
| 2039 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2040 | /* Prepare the initial contents for the indirection table if RSS is |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2041 | * enabled |
| 2042 | */ |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 2043 | for (i = 0; i < sizeof(bp->rss_conf_obj.ind_table); i++) |
| 2044 | bp->rss_conf_obj.ind_table[i] = |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 2045 | bp->fp->cl_id + |
| 2046 | ethtool_rxfh_indir_default(i, num_eth_queues); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2047 | |
| 2048 | /* |
| 2049 | * For 57710 and 57711 SEARCHER configuration (rss_keys) is |
| 2050 | * per-port, so if explicit configuration is needed , do it only |
| 2051 | * for a PMF. |
| 2052 | * |
| 2053 | * For 57712 and newer on the other hand it's a per-function |
| 2054 | * configuration. |
| 2055 | */ |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 2056 | 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] | 2057 | } |
| 2058 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2059 | int bnx2x_rss(struct bnx2x *bp, struct bnx2x_rss_config_obj *rss_obj, |
| 2060 | bool config_hash, bool enable) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2061 | { |
Yuval Mintz | 3b60306 | 2012-03-18 10:33:39 +0000 | [diff] [blame] | 2062 | struct bnx2x_config_rss_params params = {NULL}; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2063 | |
| 2064 | /* Although RSS is meaningless when there is a single HW queue we |
| 2065 | * still need it enabled in order to have HW Rx hash generated. |
| 2066 | * |
| 2067 | * if (!is_eth_multi(bp)) |
| 2068 | * bp->multi_mode = ETH_RSS_MODE_DISABLED; |
| 2069 | */ |
| 2070 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 2071 | params.rss_obj = rss_obj; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2072 | |
| 2073 | __set_bit(RAMROD_COMP_WAIT, ¶ms.ramrod_flags); |
| 2074 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2075 | if (enable) { |
| 2076 | __set_bit(BNX2X_RSS_MODE_REGULAR, ¶ms.rss_flags); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2077 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2078 | /* RSS configuration */ |
| 2079 | __set_bit(BNX2X_RSS_IPV4, ¶ms.rss_flags); |
| 2080 | __set_bit(BNX2X_RSS_IPV4_TCP, ¶ms.rss_flags); |
| 2081 | __set_bit(BNX2X_RSS_IPV6, ¶ms.rss_flags); |
| 2082 | __set_bit(BNX2X_RSS_IPV6_TCP, ¶ms.rss_flags); |
| 2083 | if (rss_obj->udp_rss_v4) |
| 2084 | __set_bit(BNX2X_RSS_IPV4_UDP, ¶ms.rss_flags); |
| 2085 | if (rss_obj->udp_rss_v6) |
| 2086 | __set_bit(BNX2X_RSS_IPV6_UDP, ¶ms.rss_flags); |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 2087 | |
| 2088 | if (!CHIP_IS_E1x(bp)) |
| 2089 | /* valid only for TUNN_MODE_GRE tunnel mode */ |
| 2090 | __set_bit(BNX2X_RSS_GRE_INNER_HDRS, ¶ms.rss_flags); |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2091 | } else { |
| 2092 | __set_bit(BNX2X_RSS_MODE_DISABLED, ¶ms.rss_flags); |
| 2093 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2094 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 2095 | /* Hash bits */ |
| 2096 | params.rss_result_mask = MULTI_MASK; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2097 | |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 2098 | memcpy(params.ind_table, rss_obj->ind_table, sizeof(params.ind_table)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2099 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 2100 | if (config_hash) { |
| 2101 | /* RSS keys */ |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2102 | prandom_bytes(params.rss_key, T_ETH_RSS_KEY * 4); |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 2103 | __set_bit(BNX2X_RSS_SET_SRCH, ¶ms.rss_flags); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2104 | } |
| 2105 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2106 | if (IS_PF(bp)) |
| 2107 | return bnx2x_config_rss(bp, ¶ms); |
| 2108 | else |
| 2109 | return bnx2x_vfpf_config_rss(bp, ¶ms); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2110 | } |
| 2111 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2112 | static int bnx2x_init_hw(struct bnx2x *bp, u32 load_code) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2113 | { |
Yuval Mintz | 3b60306 | 2012-03-18 10:33:39 +0000 | [diff] [blame] | 2114 | struct bnx2x_func_state_params func_params = {NULL}; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2115 | |
| 2116 | /* Prepare parameters for function state transitions */ |
| 2117 | __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags); |
| 2118 | |
| 2119 | func_params.f_obj = &bp->func_obj; |
| 2120 | func_params.cmd = BNX2X_F_CMD_HW_INIT; |
| 2121 | |
| 2122 | func_params.params.hw_init.load_phase = load_code; |
| 2123 | |
| 2124 | return bnx2x_func_state_change(bp, &func_params); |
| 2125 | } |
| 2126 | |
| 2127 | /* |
| 2128 | * Cleans the object that have internal lists without sending |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2129 | * ramrods. Should be run when interrupts are disabled. |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2130 | */ |
Yuval Mintz | 7fa6f340 | 2013-03-20 05:21:28 +0000 | [diff] [blame] | 2131 | void bnx2x_squeeze_objects(struct bnx2x *bp) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2132 | { |
| 2133 | int rc; |
| 2134 | unsigned long ramrod_flags = 0, vlan_mac_flags = 0; |
Yuval Mintz | 3b60306 | 2012-03-18 10:33:39 +0000 | [diff] [blame] | 2135 | struct bnx2x_mcast_ramrod_params rparam = {NULL}; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2136 | struct bnx2x_vlan_mac_obj *mac_obj = &bp->sp_objs->mac_obj; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2137 | |
| 2138 | /***************** Cleanup MACs' object first *************************/ |
| 2139 | |
| 2140 | /* Wait for completion of requested */ |
| 2141 | __set_bit(RAMROD_COMP_WAIT, &ramrod_flags); |
| 2142 | /* Perform a dry cleanup */ |
| 2143 | __set_bit(RAMROD_DRV_CLR_ONLY, &ramrod_flags); |
| 2144 | |
| 2145 | /* Clean ETH primary MAC */ |
| 2146 | __set_bit(BNX2X_ETH_MAC, &vlan_mac_flags); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2147 | 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] | 2148 | &ramrod_flags); |
| 2149 | if (rc != 0) |
| 2150 | BNX2X_ERR("Failed to clean ETH MACs: %d\n", rc); |
| 2151 | |
| 2152 | /* Cleanup UC list */ |
| 2153 | vlan_mac_flags = 0; |
| 2154 | __set_bit(BNX2X_UC_LIST_MAC, &vlan_mac_flags); |
| 2155 | rc = mac_obj->delete_all(bp, mac_obj, &vlan_mac_flags, |
| 2156 | &ramrod_flags); |
| 2157 | if (rc != 0) |
| 2158 | BNX2X_ERR("Failed to clean UC list MACs: %d\n", rc); |
| 2159 | |
| 2160 | /***************** Now clean mcast object *****************************/ |
| 2161 | rparam.mcast_obj = &bp->mcast_obj; |
| 2162 | __set_bit(RAMROD_DRV_CLR_ONLY, &rparam.ramrod_flags); |
| 2163 | |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2164 | /* Add a DEL command... - Since we're doing a driver cleanup only, |
| 2165 | * we take a lock surrounding both the initial send and the CONTs, |
| 2166 | * as we don't want a true completion to disrupt us in the middle. |
| 2167 | */ |
| 2168 | netif_addr_lock_bh(bp->dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2169 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_DEL); |
| 2170 | if (rc < 0) |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2171 | BNX2X_ERR("Failed to add a new DEL command to a multi-cast object: %d\n", |
| 2172 | rc); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2173 | |
| 2174 | /* ...and wait until all pending commands are cleared */ |
| 2175 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); |
| 2176 | while (rc != 0) { |
| 2177 | if (rc < 0) { |
| 2178 | BNX2X_ERR("Failed to clean multi-cast object: %d\n", |
| 2179 | rc); |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2180 | netif_addr_unlock_bh(bp->dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2181 | return; |
| 2182 | } |
| 2183 | |
| 2184 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); |
| 2185 | } |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2186 | netif_addr_unlock_bh(bp->dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2187 | } |
| 2188 | |
| 2189 | #ifndef BNX2X_STOP_ON_ERROR |
| 2190 | #define LOAD_ERROR_EXIT(bp, label) \ |
| 2191 | do { \ |
| 2192 | (bp)->state = BNX2X_STATE_ERROR; \ |
| 2193 | goto label; \ |
| 2194 | } while (0) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2195 | |
| 2196 | #define LOAD_ERROR_EXIT_CNIC(bp, label) \ |
| 2197 | do { \ |
| 2198 | bp->cnic_loaded = false; \ |
| 2199 | goto label; \ |
| 2200 | } while (0) |
| 2201 | #else /*BNX2X_STOP_ON_ERROR*/ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2202 | #define LOAD_ERROR_EXIT(bp, label) \ |
| 2203 | do { \ |
| 2204 | (bp)->state = BNX2X_STATE_ERROR; \ |
| 2205 | (bp)->panic = 1; \ |
| 2206 | return -EBUSY; \ |
| 2207 | } while (0) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2208 | #define LOAD_ERROR_EXIT_CNIC(bp, label) \ |
| 2209 | do { \ |
| 2210 | bp->cnic_loaded = false; \ |
| 2211 | (bp)->panic = 1; \ |
| 2212 | return -EBUSY; \ |
| 2213 | } while (0) |
| 2214 | #endif /*BNX2X_STOP_ON_ERROR*/ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2215 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2216 | static void bnx2x_free_fw_stats_mem(struct bnx2x *bp) |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2217 | { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2218 | BNX2X_PCI_FREE(bp->fw_stats, bp->fw_stats_mapping, |
| 2219 | bp->fw_stats_data_sz + bp->fw_stats_req_sz); |
| 2220 | return; |
| 2221 | } |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2222 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2223 | static int bnx2x_alloc_fw_stats_mem(struct bnx2x *bp) |
| 2224 | { |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2225 | int num_groups, vf_headroom = 0; |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2226 | int is_fcoe_stats = NO_FCOE(bp) ? 0 : 1; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2227 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2228 | /* number of queues for statistics is number of eth queues + FCoE */ |
| 2229 | u8 num_queue_stats = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe_stats; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2230 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2231 | /* Total number of FW statistics requests = |
| 2232 | * 1 for port stats + 1 for PF stats + potential 2 for FCoE (fcoe proper |
| 2233 | * and fcoe l2 queue) stats + num of queues (which includes another 1 |
| 2234 | * for fcoe l2 queue if applicable) |
| 2235 | */ |
| 2236 | bp->fw_stats_num = 2 + is_fcoe_stats + num_queue_stats; |
| 2237 | |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2238 | /* vf stats appear in the request list, but their data is allocated by |
| 2239 | * the VFs themselves. We don't include them in the bp->fw_stats_num as |
| 2240 | * it is used to determine where to place the vf stats queries in the |
| 2241 | * request struct |
| 2242 | */ |
| 2243 | if (IS_SRIOV(bp)) |
Ariel Elior | 6411280 | 2013-01-07 00:50:23 +0000 | [diff] [blame] | 2244 | vf_headroom = bnx2x_vf_headroom(bp); |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2245 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2246 | /* Request is built from stats_query_header and an array of |
| 2247 | * stats_query_cmd_group each of which contains |
| 2248 | * STATS_QUERY_CMD_COUNT rules. The real number or requests is |
| 2249 | * configured in the stats_query_header. |
| 2250 | */ |
| 2251 | num_groups = |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2252 | (((bp->fw_stats_num + vf_headroom) / STATS_QUERY_CMD_COUNT) + |
| 2253 | (((bp->fw_stats_num + vf_headroom) % STATS_QUERY_CMD_COUNT) ? |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2254 | 1 : 0)); |
| 2255 | |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2256 | DP(BNX2X_MSG_SP, "stats fw_stats_num %d, vf headroom %d, num_groups %d\n", |
| 2257 | bp->fw_stats_num, vf_headroom, num_groups); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2258 | bp->fw_stats_req_sz = sizeof(struct stats_query_header) + |
| 2259 | num_groups * sizeof(struct stats_query_cmd_group); |
| 2260 | |
| 2261 | /* Data for statistics requests + stats_counter |
| 2262 | * stats_counter holds per-STORM counters that are incremented |
| 2263 | * when STORM has finished with the current request. |
| 2264 | * memory for FCoE offloaded statistics are counted anyway, |
| 2265 | * even if they will not be sent. |
| 2266 | * VF stats are not accounted for here as the data of VF stats is stored |
| 2267 | * in memory allocated by the VF, not here. |
| 2268 | */ |
| 2269 | bp->fw_stats_data_sz = sizeof(struct per_port_stats) + |
| 2270 | sizeof(struct per_pf_stats) + |
| 2271 | sizeof(struct fcoe_statistics_params) + |
| 2272 | sizeof(struct per_queue_stats) * num_queue_stats + |
| 2273 | sizeof(struct stats_counter); |
| 2274 | |
Joe Perches | cd2b038 | 2014-02-20 13:25:51 -0800 | [diff] [blame] | 2275 | bp->fw_stats = BNX2X_PCI_ALLOC(&bp->fw_stats_mapping, |
| 2276 | bp->fw_stats_data_sz + bp->fw_stats_req_sz); |
| 2277 | if (!bp->fw_stats) |
| 2278 | goto alloc_mem_err; |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2279 | |
| 2280 | /* Set shortcuts */ |
| 2281 | bp->fw_stats_req = (struct bnx2x_fw_stats_req *)bp->fw_stats; |
| 2282 | bp->fw_stats_req_mapping = bp->fw_stats_mapping; |
| 2283 | bp->fw_stats_data = (struct bnx2x_fw_stats_data *) |
| 2284 | ((u8 *)bp->fw_stats + bp->fw_stats_req_sz); |
| 2285 | bp->fw_stats_data_mapping = bp->fw_stats_mapping + |
| 2286 | bp->fw_stats_req_sz; |
| 2287 | |
Yuval Mintz | 6bf07b8 | 2013-06-02 00:06:20 +0000 | [diff] [blame] | 2288 | 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] | 2289 | U64_HI(bp->fw_stats_req_mapping), |
| 2290 | U64_LO(bp->fw_stats_req_mapping)); |
Yuval Mintz | 6bf07b8 | 2013-06-02 00:06:20 +0000 | [diff] [blame] | 2291 | 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] | 2292 | U64_HI(bp->fw_stats_data_mapping), |
| 2293 | U64_LO(bp->fw_stats_data_mapping)); |
| 2294 | return 0; |
| 2295 | |
| 2296 | alloc_mem_err: |
| 2297 | bnx2x_free_fw_stats_mem(bp); |
| 2298 | BNX2X_ERR("Can't allocate FW stats memory\n"); |
| 2299 | return -ENOMEM; |
| 2300 | } |
| 2301 | |
| 2302 | /* send load request to mcp and analyze response */ |
| 2303 | static int bnx2x_nic_load_request(struct bnx2x *bp, u32 *load_code) |
| 2304 | { |
Dmitry Kravkov | 178135c | 2013-05-22 21:21:50 +0000 | [diff] [blame] | 2305 | u32 param; |
| 2306 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2307 | /* init fw_seq */ |
| 2308 | bp->fw_seq = |
| 2309 | (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_mb_header) & |
| 2310 | DRV_MSG_SEQ_NUMBER_MASK); |
| 2311 | BNX2X_DEV_INFO("fw_seq 0x%08x\n", bp->fw_seq); |
| 2312 | |
| 2313 | /* Get current FW pulse sequence */ |
| 2314 | bp->fw_drv_pulse_wr_seq = |
| 2315 | (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_pulse_mb) & |
| 2316 | DRV_PULSE_SEQ_MASK); |
| 2317 | BNX2X_DEV_INFO("drv_pulse 0x%x\n", bp->fw_drv_pulse_wr_seq); |
| 2318 | |
Dmitry Kravkov | 178135c | 2013-05-22 21:21:50 +0000 | [diff] [blame] | 2319 | param = DRV_MSG_CODE_LOAD_REQ_WITH_LFA; |
| 2320 | |
| 2321 | if (IS_MF_SD(bp) && bnx2x_port_after_undi(bp)) |
| 2322 | param |= DRV_MSG_CODE_LOAD_REQ_FORCE_LFA; |
| 2323 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2324 | /* load request */ |
Dmitry Kravkov | 178135c | 2013-05-22 21:21:50 +0000 | [diff] [blame] | 2325 | (*load_code) = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ, param); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2326 | |
| 2327 | /* if mcp fails to respond we must abort */ |
| 2328 | if (!(*load_code)) { |
| 2329 | BNX2X_ERR("MCP response failure, aborting\n"); |
| 2330 | return -EBUSY; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2331 | } |
| 2332 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2333 | /* If mcp refused (e.g. other port is in diagnostic mode) we |
| 2334 | * must abort |
| 2335 | */ |
| 2336 | if ((*load_code) == FW_MSG_CODE_DRV_LOAD_REFUSED) { |
| 2337 | BNX2X_ERR("MCP refused load request, aborting\n"); |
| 2338 | return -EBUSY; |
| 2339 | } |
| 2340 | return 0; |
| 2341 | } |
| 2342 | |
| 2343 | /* check whether another PF has already loaded FW to chip. In |
| 2344 | * virtualized environments a pf from another VM may have already |
| 2345 | * initialized the device including loading FW |
| 2346 | */ |
Yuval Mintz | 91ebb92 | 2013-12-26 09:57:07 +0200 | [diff] [blame] | 2347 | 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] | 2348 | { |
| 2349 | /* is another pf loaded on this engine? */ |
| 2350 | if (load_code != FW_MSG_CODE_DRV_LOAD_COMMON_CHIP && |
| 2351 | load_code != FW_MSG_CODE_DRV_LOAD_COMMON) { |
| 2352 | /* build my FW version dword */ |
| 2353 | u32 my_fw = (BCM_5710_FW_MAJOR_VERSION) + |
| 2354 | (BCM_5710_FW_MINOR_VERSION << 8) + |
| 2355 | (BCM_5710_FW_REVISION_VERSION << 16) + |
| 2356 | (BCM_5710_FW_ENGINEERING_VERSION << 24); |
| 2357 | |
| 2358 | /* read loaded FW from chip */ |
| 2359 | u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM); |
| 2360 | |
| 2361 | DP(BNX2X_MSG_SP, "loaded fw %x, my fw %x\n", |
| 2362 | loaded_fw, my_fw); |
| 2363 | |
| 2364 | /* abort nic load if version mismatch */ |
| 2365 | if (my_fw != loaded_fw) { |
Yuval Mintz | 91ebb92 | 2013-12-26 09:57:07 +0200 | [diff] [blame] | 2366 | if (print_err) |
| 2367 | BNX2X_ERR("bnx2x with FW %x was already loaded which mismatches my %x FW. Aborting\n", |
| 2368 | loaded_fw, my_fw); |
| 2369 | else |
| 2370 | BNX2X_DEV_INFO("bnx2x with FW %x was already loaded which mismatches my %x FW, possibly due to MF UNDI\n", |
| 2371 | loaded_fw, my_fw); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2372 | return -EBUSY; |
| 2373 | } |
| 2374 | } |
| 2375 | return 0; |
| 2376 | } |
| 2377 | |
| 2378 | /* returns the "mcp load_code" according to global load_count array */ |
| 2379 | static int bnx2x_nic_load_no_mcp(struct bnx2x *bp, int port) |
| 2380 | { |
| 2381 | int path = BP_PATH(bp); |
| 2382 | |
| 2383 | 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] | 2384 | path, bnx2x_load_count[path][0], bnx2x_load_count[path][1], |
| 2385 | bnx2x_load_count[path][2]); |
| 2386 | bnx2x_load_count[path][0]++; |
| 2387 | bnx2x_load_count[path][1 + port]++; |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2388 | 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] | 2389 | path, bnx2x_load_count[path][0], bnx2x_load_count[path][1], |
| 2390 | bnx2x_load_count[path][2]); |
| 2391 | if (bnx2x_load_count[path][0] == 1) |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2392 | return FW_MSG_CODE_DRV_LOAD_COMMON; |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 2393 | else if (bnx2x_load_count[path][1 + port] == 1) |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2394 | return FW_MSG_CODE_DRV_LOAD_PORT; |
| 2395 | else |
| 2396 | return FW_MSG_CODE_DRV_LOAD_FUNCTION; |
| 2397 | } |
| 2398 | |
| 2399 | /* mark PMF if applicable */ |
| 2400 | static void bnx2x_nic_load_pmf(struct bnx2x *bp, u32 load_code) |
| 2401 | { |
| 2402 | if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) || |
| 2403 | (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP) || |
| 2404 | (load_code == FW_MSG_CODE_DRV_LOAD_PORT)) { |
| 2405 | bp->port.pmf = 1; |
| 2406 | /* We need the barrier to ensure the ordering between the |
| 2407 | * writing to bp->port.pmf here and reading it from the |
| 2408 | * bnx2x_periodic_task(). |
| 2409 | */ |
| 2410 | smp_mb(); |
| 2411 | } else { |
| 2412 | bp->port.pmf = 0; |
| 2413 | } |
| 2414 | |
| 2415 | DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf); |
| 2416 | } |
| 2417 | |
| 2418 | static void bnx2x_nic_load_afex_dcc(struct bnx2x *bp, int load_code) |
| 2419 | { |
| 2420 | if (((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) || |
| 2421 | (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP)) && |
| 2422 | (bp->common.shmem2_base)) { |
| 2423 | if (SHMEM2_HAS(bp, dcc_support)) |
| 2424 | SHMEM2_WR(bp, dcc_support, |
| 2425 | (SHMEM_DCC_SUPPORT_DISABLE_ENABLE_PF_TLV | |
| 2426 | SHMEM_DCC_SUPPORT_BANDWIDTH_ALLOCATION_TLV)); |
| 2427 | if (SHMEM2_HAS(bp, afex_driver_support)) |
| 2428 | SHMEM2_WR(bp, afex_driver_support, |
| 2429 | SHMEM_AFEX_SUPPORTED_VERSION_ONE); |
| 2430 | } |
| 2431 | |
| 2432 | /* Set AFEX default VLAN tag to an invalid value */ |
| 2433 | bp->afex_def_vlan_tag = -1; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2434 | } |
| 2435 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2436 | /** |
| 2437 | * bnx2x_bz_fp - zero content of the fastpath structure. |
| 2438 | * |
| 2439 | * @bp: driver handle |
| 2440 | * @index: fastpath index to be zeroed |
| 2441 | * |
| 2442 | * Makes sure the contents of the bp->fp[index].napi is kept |
| 2443 | * intact. |
| 2444 | */ |
| 2445 | static void bnx2x_bz_fp(struct bnx2x *bp, int index) |
| 2446 | { |
| 2447 | struct bnx2x_fastpath *fp = &bp->fp[index]; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2448 | int cos; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2449 | struct napi_struct orig_napi = fp->napi; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2450 | struct bnx2x_agg_info *orig_tpa_info = fp->tpa_info; |
Yuval Mintz | d76a611 | 2013-06-02 00:06:17 +0000 | [diff] [blame] | 2451 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2452 | /* bzero bnx2x_fastpath contents */ |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 2453 | if (fp->tpa_info) |
| 2454 | memset(fp->tpa_info, 0, ETH_MAX_AGGREGATION_QUEUES_E1H_E2 * |
| 2455 | sizeof(struct bnx2x_agg_info)); |
| 2456 | memset(fp, 0, sizeof(*fp)); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2457 | |
| 2458 | /* Restore the NAPI object as it has been already initialized */ |
| 2459 | fp->napi = orig_napi; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2460 | fp->tpa_info = orig_tpa_info; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2461 | fp->bp = bp; |
| 2462 | fp->index = index; |
| 2463 | if (IS_ETH_FP(fp)) |
| 2464 | fp->max_cos = bp->max_cos; |
| 2465 | else |
| 2466 | /* Special queues support only one CoS */ |
| 2467 | fp->max_cos = 1; |
| 2468 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2469 | /* Init txdata pointers */ |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2470 | if (IS_FCOE_FP(fp)) |
| 2471 | fp->txdata_ptr[0] = &bp->bnx2x_txq[FCOE_TXQ_IDX(bp)]; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2472 | if (IS_ETH_FP(fp)) |
| 2473 | for_each_cos_in_tx_queue(fp, cos) |
| 2474 | fp->txdata_ptr[cos] = &bp->bnx2x_txq[cos * |
| 2475 | BNX2X_NUM_ETH_QUEUES(bp) + index]; |
| 2476 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2477 | /* 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] | 2478 | * minimal size so it must be set prior to queue memory allocation |
| 2479 | */ |
| 2480 | fp->disable_tpa = !(bp->flags & TPA_ENABLE_FLAG || |
| 2481 | (bp->flags & GRO_ENABLE_FLAG && |
| 2482 | bnx2x_mtu_allows_gro(bp->dev->mtu))); |
| 2483 | if (bp->flags & TPA_ENABLE_FLAG) |
| 2484 | fp->mode = TPA_MODE_LRO; |
| 2485 | else if (bp->flags & GRO_ENABLE_FLAG) |
| 2486 | fp->mode = TPA_MODE_GRO; |
| 2487 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2488 | /* We don't want TPA on an FCoE L2 ring */ |
| 2489 | if (IS_FCOE_FP(fp)) |
| 2490 | fp->disable_tpa = 1; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2491 | } |
| 2492 | |
| 2493 | int bnx2x_load_cnic(struct bnx2x *bp) |
| 2494 | { |
| 2495 | int i, rc, port = BP_PORT(bp); |
| 2496 | |
| 2497 | DP(NETIF_MSG_IFUP, "Starting CNIC-related load\n"); |
| 2498 | |
| 2499 | mutex_init(&bp->cnic_mutex); |
| 2500 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2501 | if (IS_PF(bp)) { |
| 2502 | rc = bnx2x_alloc_mem_cnic(bp); |
| 2503 | if (rc) { |
| 2504 | BNX2X_ERR("Unable to allocate bp memory for cnic\n"); |
| 2505 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); |
| 2506 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2507 | } |
| 2508 | |
| 2509 | rc = bnx2x_alloc_fp_mem_cnic(bp); |
| 2510 | if (rc) { |
| 2511 | BNX2X_ERR("Unable to allocate memory for cnic fps\n"); |
| 2512 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); |
| 2513 | } |
| 2514 | |
| 2515 | /* Update the number of queues with the cnic queues */ |
| 2516 | rc = bnx2x_set_real_num_queues(bp, 1); |
| 2517 | if (rc) { |
| 2518 | BNX2X_ERR("Unable to set real_num_queues including cnic\n"); |
| 2519 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); |
| 2520 | } |
| 2521 | |
| 2522 | /* Add all CNIC NAPI objects */ |
| 2523 | bnx2x_add_all_napi_cnic(bp); |
| 2524 | DP(NETIF_MSG_IFUP, "cnic napi added\n"); |
| 2525 | bnx2x_napi_enable_cnic(bp); |
| 2526 | |
| 2527 | rc = bnx2x_init_hw_func_cnic(bp); |
| 2528 | if (rc) |
| 2529 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic1); |
| 2530 | |
| 2531 | bnx2x_nic_init_cnic(bp); |
| 2532 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2533 | if (IS_PF(bp)) { |
| 2534 | /* Enable Timer scan */ |
| 2535 | REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 1); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2536 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2537 | /* setup cnic queues */ |
| 2538 | for_each_cnic_queue(bp, i) { |
| 2539 | rc = bnx2x_setup_queue(bp, &bp->fp[i], 0); |
| 2540 | if (rc) { |
| 2541 | BNX2X_ERR("Queue setup failed\n"); |
| 2542 | LOAD_ERROR_EXIT(bp, load_error_cnic2); |
| 2543 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2544 | } |
| 2545 | } |
| 2546 | |
| 2547 | /* Initialize Rx filter. */ |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2548 | bnx2x_set_rx_mode_inner(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2549 | |
| 2550 | /* re-read iscsi info */ |
| 2551 | bnx2x_get_iscsi_info(bp); |
| 2552 | bnx2x_setup_cnic_irq_info(bp); |
| 2553 | bnx2x_setup_cnic_info(bp); |
| 2554 | bp->cnic_loaded = true; |
| 2555 | if (bp->state == BNX2X_STATE_OPEN) |
| 2556 | bnx2x_cnic_notify(bp, CNIC_CTL_START_CMD); |
| 2557 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2558 | DP(NETIF_MSG_IFUP, "Ending successfully CNIC-related load\n"); |
| 2559 | |
| 2560 | return 0; |
| 2561 | |
| 2562 | #ifndef BNX2X_STOP_ON_ERROR |
| 2563 | load_error_cnic2: |
| 2564 | /* Disable Timer scan */ |
| 2565 | REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 0); |
| 2566 | |
| 2567 | load_error_cnic1: |
| 2568 | bnx2x_napi_disable_cnic(bp); |
| 2569 | /* Update the number of queues without the cnic queues */ |
Yuval Mintz | d9d8186 | 2013-09-23 10:12:53 +0300 | [diff] [blame] | 2570 | if (bnx2x_set_real_num_queues(bp, 0)) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2571 | BNX2X_ERR("Unable to set real_num_queues not including cnic\n"); |
| 2572 | load_error_cnic0: |
| 2573 | BNX2X_ERR("CNIC-related load failed\n"); |
| 2574 | bnx2x_free_fp_mem_cnic(bp); |
| 2575 | bnx2x_free_mem_cnic(bp); |
| 2576 | return rc; |
| 2577 | #endif /* ! BNX2X_STOP_ON_ERROR */ |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2578 | } |
| 2579 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2580 | /* must be called with rtnl_lock */ |
| 2581 | int bnx2x_nic_load(struct bnx2x *bp, int load_mode) |
| 2582 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2583 | int port = BP_PORT(bp); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2584 | int i, rc = 0, load_code = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2585 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2586 | DP(NETIF_MSG_IFUP, "Starting NIC load\n"); |
| 2587 | DP(NETIF_MSG_IFUP, |
| 2588 | "CNIC is %s\n", CNIC_ENABLED(bp) ? "enabled" : "disabled"); |
| 2589 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2590 | #ifdef BNX2X_STOP_ON_ERROR |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2591 | if (unlikely(bp->panic)) { |
| 2592 | BNX2X_ERR("Can't load NIC when there is panic\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2593 | return -EPERM; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2594 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2595 | #endif |
| 2596 | |
| 2597 | bp->state = BNX2X_STATE_OPENING_WAIT4_LOAD; |
| 2598 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2599 | /* zero the structure w/o any lock, before SP handler is initialized */ |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 2600 | memset(&bp->last_reported_link, 0, sizeof(bp->last_reported_link)); |
| 2601 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 2602 | &bp->last_reported_link.link_report_flags); |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 2603 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2604 | if (IS_PF(bp)) |
| 2605 | /* must be called before memory allocation and HW init */ |
| 2606 | bnx2x_ilt_set_info(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2607 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2608 | /* |
| 2609 | * Zero fastpath structures preserving invariants like napi, which are |
| 2610 | * allocated only once, fp index, max_cos, bp pointer. |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2611 | * Also set fp->disable_tpa and txdata_ptr. |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2612 | */ |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2613 | DP(NETIF_MSG_IFUP, "num queues: %d", bp->num_queues); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2614 | for_each_queue(bp, i) |
| 2615 | bnx2x_bz_fp(bp, i); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2616 | memset(bp->bnx2x_txq, 0, (BNX2X_MAX_RSS_COUNT(bp) * BNX2X_MULTI_TX_COS + |
| 2617 | bp->num_cnic_queues) * |
| 2618 | sizeof(struct bnx2x_fp_txdata)); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2619 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2620 | bp->fcoe_init = false; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2621 | |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 2622 | /* Set the receive queues buffer size */ |
| 2623 | bnx2x_set_rx_buf_size(bp); |
| 2624 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2625 | if (IS_PF(bp)) { |
| 2626 | rc = bnx2x_alloc_mem(bp); |
| 2627 | if (rc) { |
| 2628 | BNX2X_ERR("Unable to allocate bp memory\n"); |
| 2629 | return rc; |
| 2630 | } |
| 2631 | } |
| 2632 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2633 | /* need to be done after alloc mem, since it's self adjusting to amount |
| 2634 | * of memory available for RSS queues |
| 2635 | */ |
| 2636 | rc = bnx2x_alloc_fp_mem(bp); |
| 2637 | if (rc) { |
| 2638 | BNX2X_ERR("Unable to allocate memory for fps\n"); |
| 2639 | LOAD_ERROR_EXIT(bp, load_error0); |
| 2640 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2641 | |
Dmitry Kravkov | e3ed4ea | 2013-10-27 13:07:00 +0200 | [diff] [blame] | 2642 | /* Allocated memory for FW statistics */ |
| 2643 | if (bnx2x_alloc_fw_stats_mem(bp)) |
| 2644 | LOAD_ERROR_EXIT(bp, load_error0); |
| 2645 | |
Ariel Elior | 8d9ac29 | 2013-01-01 05:22:27 +0000 | [diff] [blame] | 2646 | /* request pf to initialize status blocks */ |
| 2647 | if (IS_VF(bp)) { |
| 2648 | rc = bnx2x_vfpf_init(bp); |
| 2649 | if (rc) |
| 2650 | LOAD_ERROR_EXIT(bp, load_error0); |
| 2651 | } |
| 2652 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2653 | /* As long as bnx2x_alloc_mem() may possibly update |
| 2654 | * bp->num_queues, bnx2x_set_real_num_queues() should always |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2655 | * come after it. At this stage cnic queues are not counted. |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2656 | */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2657 | rc = bnx2x_set_real_num_queues(bp, 0); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2658 | if (rc) { |
| 2659 | BNX2X_ERR("Unable to set real_num_queues\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2660 | LOAD_ERROR_EXIT(bp, load_error0); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2661 | } |
| 2662 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2663 | /* configure multi cos mappings in kernel. |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2664 | * this configuration may be overridden by a multi class queue |
| 2665 | * discipline or by a dcbx negotiation result. |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2666 | */ |
| 2667 | bnx2x_setup_tc(bp->dev, bp->max_cos); |
| 2668 | |
Merav Sicron | 26614ba | 2012-08-27 03:26:19 +0000 | [diff] [blame] | 2669 | /* Add all NAPI objects */ |
| 2670 | bnx2x_add_all_napi(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2671 | DP(NETIF_MSG_IFUP, "napi added\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2672 | bnx2x_napi_enable(bp); |
| 2673 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2674 | if (IS_PF(bp)) { |
| 2675 | /* set pf load just before approaching the MCP */ |
| 2676 | bnx2x_set_pf_load(bp); |
Ariel Elior | 889b9af | 2012-01-26 06:01:51 +0000 | [diff] [blame] | 2677 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2678 | /* if mcp exists send load request and analyze response */ |
| 2679 | if (!BP_NOMCP(bp)) { |
| 2680 | /* attempt to load pf */ |
| 2681 | rc = bnx2x_nic_load_request(bp, &load_code); |
| 2682 | if (rc) |
| 2683 | LOAD_ERROR_EXIT(bp, load_error1); |
Ariel Elior | 95c6c616 | 2012-01-26 06:01:52 +0000 | [diff] [blame] | 2684 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2685 | /* what did mcp say? */ |
Yuval Mintz | 91ebb92 | 2013-12-26 09:57:07 +0200 | [diff] [blame] | 2686 | rc = bnx2x_compare_fw_ver(bp, load_code, true); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2687 | if (rc) { |
| 2688 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
Ariel Elior | d1e2d96 | 2012-01-26 06:01:49 +0000 | [diff] [blame] | 2689 | LOAD_ERROR_EXIT(bp, load_error2); |
| 2690 | } |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2691 | } else { |
| 2692 | load_code = bnx2x_nic_load_no_mcp(bp, port); |
Ariel Elior | d1e2d96 | 2012-01-26 06:01:49 +0000 | [diff] [blame] | 2693 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2694 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2695 | /* mark pmf if applicable */ |
| 2696 | bnx2x_nic_load_pmf(bp, load_code); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2697 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2698 | /* Init Function state controlling object */ |
| 2699 | bnx2x__init_func_obj(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2700 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2701 | /* Initialize HW */ |
| 2702 | rc = bnx2x_init_hw(bp, load_code); |
| 2703 | if (rc) { |
| 2704 | BNX2X_ERR("HW init failed, aborting\n"); |
| 2705 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
| 2706 | LOAD_ERROR_EXIT(bp, load_error2); |
| 2707 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2708 | } |
| 2709 | |
Yuval Mintz | ecf01c2 | 2013-04-22 02:53:03 +0000 | [diff] [blame] | 2710 | bnx2x_pre_irq_nic_init(bp); |
| 2711 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2712 | /* Connect to IRQs */ |
| 2713 | rc = bnx2x_setup_irqs(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2714 | if (rc) { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2715 | BNX2X_ERR("setup irqs failed\n"); |
| 2716 | if (IS_PF(bp)) |
| 2717 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2718 | LOAD_ERROR_EXIT(bp, load_error2); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2719 | } |
| 2720 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2721 | /* Init per-function objects */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2722 | if (IS_PF(bp)) { |
Yuval Mintz | ecf01c2 | 2013-04-22 02:53:03 +0000 | [diff] [blame] | 2723 | /* Setup NIC internals and enable interrupts */ |
| 2724 | bnx2x_post_irq_nic_init(bp, load_code); |
| 2725 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2726 | bnx2x_init_bp_objs(bp); |
Ariel Elior | b56e967 | 2013-01-01 05:22:32 +0000 | [diff] [blame] | 2727 | bnx2x_iov_nic_init(bp); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2728 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2729 | /* Set AFEX default VLAN tag to an invalid value */ |
| 2730 | bp->afex_def_vlan_tag = -1; |
| 2731 | bnx2x_nic_load_afex_dcc(bp, load_code); |
| 2732 | bp->state = BNX2X_STATE_OPENING_WAIT4_PORT; |
| 2733 | rc = bnx2x_func_start(bp); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2734 | if (rc) { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2735 | BNX2X_ERR("Function start failed!\n"); |
| 2736 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
| 2737 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2738 | LOAD_ERROR_EXIT(bp, load_error3); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2739 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2740 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2741 | /* Send LOAD_DONE command to MCP */ |
| 2742 | if (!BP_NOMCP(bp)) { |
| 2743 | load_code = bnx2x_fw_command(bp, |
| 2744 | DRV_MSG_CODE_LOAD_DONE, 0); |
| 2745 | if (!load_code) { |
| 2746 | BNX2X_ERR("MCP response failure, aborting\n"); |
| 2747 | rc = -EBUSY; |
| 2748 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2749 | } |
| 2750 | } |
| 2751 | |
Ariel Elior | 0c14e5c | 2013-04-17 22:49:06 +0000 | [diff] [blame] | 2752 | /* initialize FW coalescing state machines in RAM */ |
| 2753 | bnx2x_update_coalesce(bp); |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2754 | } |
Ariel Elior | 0c14e5c | 2013-04-17 22:49:06 +0000 | [diff] [blame] | 2755 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2756 | /* setup the leading queue */ |
| 2757 | rc = bnx2x_setup_leading(bp); |
| 2758 | if (rc) { |
| 2759 | BNX2X_ERR("Setup leading failed!\n"); |
| 2760 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2761 | } |
| 2762 | |
| 2763 | /* set up the rest of the queues */ |
| 2764 | for_each_nondefault_eth_queue(bp, i) { |
| 2765 | if (IS_PF(bp)) |
| 2766 | rc = bnx2x_setup_queue(bp, &bp->fp[i], false); |
| 2767 | else /* VF */ |
| 2768 | rc = bnx2x_vfpf_setup_q(bp, &bp->fp[i], false); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2769 | if (rc) { |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2770 | BNX2X_ERR("Queue %d setup failed\n", i); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2771 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2772 | } |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2773 | } |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2774 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2775 | /* setup rss */ |
| 2776 | rc = bnx2x_init_rss(bp); |
| 2777 | if (rc) { |
| 2778 | BNX2X_ERR("PF RSS init failed\n"); |
| 2779 | LOAD_ERROR_EXIT(bp, load_error3); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2780 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2781 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2782 | /* Now when Clients are configured we are ready to work */ |
| 2783 | bp->state = BNX2X_STATE_OPEN; |
| 2784 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2785 | /* Configure a ucast MAC */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2786 | if (IS_PF(bp)) |
| 2787 | rc = bnx2x_set_eth_mac(bp, true); |
Ariel Elior | 8d9ac29 | 2013-01-01 05:22:27 +0000 | [diff] [blame] | 2788 | else /* vf */ |
Dmitry Kravkov | f8f4f61 | 2013-04-24 01:45:00 +0000 | [diff] [blame] | 2789 | rc = bnx2x_vfpf_config_mac(bp, bp->dev->dev_addr, bp->fp->index, |
| 2790 | true); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2791 | if (rc) { |
| 2792 | BNX2X_ERR("Setting Ethernet MAC failed\n"); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2793 | LOAD_ERROR_EXIT(bp, load_error3); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2794 | } |
Vladislav Zolotarov | 6e30dd4 | 2011-02-06 11:25:41 -0800 | [diff] [blame] | 2795 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2796 | if (IS_PF(bp) && bp->pending_max) { |
Dmitry Kravkov | e3835b9 | 2011-03-06 10:50:44 +0000 | [diff] [blame] | 2797 | bnx2x_update_max_mf_config(bp, bp->pending_max); |
| 2798 | bp->pending_max = 0; |
| 2799 | } |
| 2800 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2801 | if (bp->port.pmf) { |
| 2802 | rc = bnx2x_initial_phy_init(bp, load_mode); |
| 2803 | if (rc) |
| 2804 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2805 | } |
Barak Witkowski | c63da99 | 2012-12-05 23:04:03 +0000 | [diff] [blame] | 2806 | bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_BOOT_FROM_SAN; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2807 | |
| 2808 | /* Start fast path */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2809 | |
| 2810 | /* Initialize Rx filter. */ |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2811 | bnx2x_set_rx_mode_inner(bp); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2812 | |
Michal Kalderon | eeed018 | 2014-08-17 16:47:44 +0300 | [diff] [blame] | 2813 | if (bp->flags & PTP_SUPPORTED) { |
| 2814 | bnx2x_init_ptp(bp); |
| 2815 | bnx2x_configure_ptp_filters(bp); |
| 2816 | } |
| 2817 | /* Start Tx */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2818 | switch (load_mode) { |
| 2819 | case LOAD_NORMAL: |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2820 | /* Tx queue should be only re-enabled */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2821 | netif_tx_wake_all_queues(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2822 | break; |
| 2823 | |
| 2824 | case LOAD_OPEN: |
| 2825 | netif_tx_start_all_queues(bp->dev); |
Peter Zijlstra | 4e857c5 | 2014-03-17 18:06:10 +0100 | [diff] [blame] | 2826 | smp_mb__after_atomic(); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2827 | break; |
| 2828 | |
| 2829 | case LOAD_DIAG: |
Merav Sicron | 8970b2e | 2012-06-19 07:48:22 +0000 | [diff] [blame] | 2830 | case LOAD_LOOPBACK_EXT: |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2831 | bp->state = BNX2X_STATE_DIAG; |
| 2832 | break; |
| 2833 | |
| 2834 | default: |
| 2835 | break; |
| 2836 | } |
| 2837 | |
Dmitry Kravkov | 00253a8 | 2011-11-13 04:34:25 +0000 | [diff] [blame] | 2838 | if (bp->port.pmf) |
Barak Witkowski | 4c70489 | 2012-12-02 04:05:47 +0000 | [diff] [blame] | 2839 | bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_PORT_MASK, 0); |
Dmitry Kravkov | 00253a8 | 2011-11-13 04:34:25 +0000 | [diff] [blame] | 2840 | else |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2841 | bnx2x__link_status_update(bp); |
| 2842 | |
| 2843 | /* start the timer */ |
| 2844 | mod_timer(&bp->timer, jiffies + bp->current_interval); |
| 2845 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2846 | if (CNIC_ENABLED(bp)) |
| 2847 | bnx2x_load_cnic(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2848 | |
Yuval Mintz | 42f8277 | 2014-03-23 18:12:23 +0200 | [diff] [blame] | 2849 | if (IS_PF(bp)) |
| 2850 | bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_GET_DRV_VERSION, 0); |
| 2851 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2852 | if (IS_PF(bp) && SHMEM2_HAS(bp, drv_capabilities_flag)) { |
| 2853 | /* mark driver is loaded in shmem2 */ |
Yuval Mintz | 9ce392d | 2012-03-12 08:53:11 +0000 | [diff] [blame] | 2854 | u32 val; |
| 2855 | val = SHMEM2_RD(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)]); |
| 2856 | SHMEM2_WR(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)], |
| 2857 | val | DRV_FLAGS_CAPABILITIES_LOADED_SUPPORTED | |
| 2858 | DRV_FLAGS_CAPABILITIES_LOADED_L2); |
| 2859 | } |
| 2860 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2861 | /* Wait for all pending SP commands to complete */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2862 | if (IS_PF(bp) && !bnx2x_wait_sp_comp(bp, ~0x0UL)) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2863 | BNX2X_ERR("Timeout waiting for SP elements to complete\n"); |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 2864 | bnx2x_nic_unload(bp, UNLOAD_CLOSE, false); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2865 | return -EBUSY; |
| 2866 | } |
Dmitry Kravkov | 6891dd2 | 2010-08-03 21:49:40 +0000 | [diff] [blame] | 2867 | |
Barak Witkowski | 9876879 | 2012-06-19 07:48:31 +0000 | [diff] [blame] | 2868 | /* If PMF - send ADMIN DCBX msg to MFW to initiate DCBX FSM */ |
| 2869 | if (bp->port.pmf && (bp->state != BNX2X_STATE_DIAG)) |
| 2870 | bnx2x_dcbx_init(bp, false); |
| 2871 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2872 | DP(NETIF_MSG_IFUP, "Ending successfully NIC load\n"); |
| 2873 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2874 | return 0; |
| 2875 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2876 | #ifndef BNX2X_STOP_ON_ERROR |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2877 | load_error3: |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2878 | if (IS_PF(bp)) { |
| 2879 | bnx2x_int_disable_sync(bp, 1); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2880 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2881 | /* Clean queueable objects */ |
| 2882 | bnx2x_squeeze_objects(bp); |
| 2883 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2884 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2885 | /* Free SKBs, SGEs, TPA pool and driver internals */ |
| 2886 | bnx2x_free_skbs(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 2887 | for_each_rx_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2888 | bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2889 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2890 | /* Release IRQs */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2891 | bnx2x_free_irq(bp); |
| 2892 | load_error2: |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2893 | if (IS_PF(bp) && !BP_NOMCP(bp)) { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2894 | bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP, 0); |
| 2895 | bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0); |
| 2896 | } |
| 2897 | |
| 2898 | bp->port.pmf = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2899 | load_error1: |
| 2900 | bnx2x_napi_disable(bp); |
Michal Schmidt | 722c6f5 | 2013-03-15 05:27:54 +0000 | [diff] [blame] | 2901 | bnx2x_del_all_napi(bp); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2902 | |
Ariel Elior | 889b9af | 2012-01-26 06:01:51 +0000 | [diff] [blame] | 2903 | /* clear pf_load status, as it was already set */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2904 | if (IS_PF(bp)) |
| 2905 | bnx2x_clear_pf_load(bp); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2906 | load_error0: |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2907 | bnx2x_free_fw_stats_mem(bp); |
Dmitry Kravkov | e3ed4ea | 2013-10-27 13:07:00 +0200 | [diff] [blame] | 2908 | bnx2x_free_fp_mem(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2909 | bnx2x_free_mem(bp); |
| 2910 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2911 | return rc; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2912 | #endif /* ! BNX2X_STOP_ON_ERROR */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2913 | } |
| 2914 | |
Yuval Mintz | 7fa6f340 | 2013-03-20 05:21:28 +0000 | [diff] [blame] | 2915 | int bnx2x_drain_tx_queues(struct bnx2x *bp) |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2916 | { |
| 2917 | u8 rc = 0, cos, i; |
| 2918 | |
| 2919 | /* Wait until tx fastpath tasks complete */ |
| 2920 | for_each_tx_queue(bp, i) { |
| 2921 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
| 2922 | |
| 2923 | for_each_cos_in_tx_queue(fp, cos) |
| 2924 | rc = bnx2x_clean_tx_queue(bp, fp->txdata_ptr[cos]); |
| 2925 | if (rc) |
| 2926 | return rc; |
| 2927 | } |
| 2928 | return 0; |
| 2929 | } |
| 2930 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2931 | /* must be called with rtnl_lock */ |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 2932 | 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] | 2933 | { |
| 2934 | int i; |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2935 | bool global = false; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2936 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2937 | DP(NETIF_MSG_IFUP, "Starting NIC unload\n"); |
| 2938 | |
Yuval Mintz | 9ce392d | 2012-03-12 08:53:11 +0000 | [diff] [blame] | 2939 | /* mark driver is unloaded in shmem2 */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2940 | if (IS_PF(bp) && SHMEM2_HAS(bp, drv_capabilities_flag)) { |
Yuval Mintz | 9ce392d | 2012-03-12 08:53:11 +0000 | [diff] [blame] | 2941 | u32 val; |
| 2942 | val = SHMEM2_RD(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)]); |
| 2943 | SHMEM2_WR(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)], |
| 2944 | val & ~DRV_FLAGS_CAPABILITIES_LOADED_L2); |
| 2945 | } |
| 2946 | |
Yuval Mintz | 80bfe5c | 2013-01-23 03:21:49 +0000 | [diff] [blame] | 2947 | if (IS_PF(bp) && bp->recovery_state != BNX2X_RECOVERY_DONE && |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2948 | (bp->state == BNX2X_STATE_CLOSED || |
| 2949 | bp->state == BNX2X_STATE_ERROR)) { |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2950 | /* We can get here if the driver has been unloaded |
| 2951 | * during parity error recovery and is either waiting for a |
| 2952 | * leader to complete or for other functions to unload and |
| 2953 | * then ifdown has been issued. In this case we want to |
| 2954 | * unload and let other functions to complete a recovery |
| 2955 | * process. |
| 2956 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2957 | bp->recovery_state = BNX2X_RECOVERY_DONE; |
| 2958 | bp->is_leader = 0; |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2959 | bnx2x_release_leader_lock(bp); |
| 2960 | smp_mb(); |
| 2961 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2962 | DP(NETIF_MSG_IFDOWN, "Releasing a leadership...\n"); |
| 2963 | BNX2X_ERR("Can't unload in closed or error state\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2964 | return -EINVAL; |
| 2965 | } |
| 2966 | |
Yuval Mintz | 80bfe5c | 2013-01-23 03:21:49 +0000 | [diff] [blame] | 2967 | /* Nothing to do during unload if previous bnx2x_nic_load() |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2968 | * have not completed successfully - all resources are released. |
Yuval Mintz | 80bfe5c | 2013-01-23 03:21:49 +0000 | [diff] [blame] | 2969 | * |
| 2970 | * we can get here only after unsuccessful ndo_* callback, during which |
| 2971 | * dev->IFF_UP flag is still on. |
| 2972 | */ |
| 2973 | if (bp->state == BNX2X_STATE_CLOSED || bp->state == BNX2X_STATE_ERROR) |
| 2974 | return 0; |
| 2975 | |
| 2976 | /* 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] | 2977 | * BNX2X_STATE_OPEN and only then stop the Tx. Otherwise bnx2x_tx_int() |
| 2978 | * may restart the Tx from the NAPI context (see bnx2x_tx_int()). |
| 2979 | */ |
| 2980 | bp->state = BNX2X_STATE_CLOSING_WAIT4_HALT; |
| 2981 | smp_mb(); |
| 2982 | |
Ariel Elior | 78c3bcc | 2013-06-20 17:39:08 +0300 | [diff] [blame] | 2983 | /* indicate to VFs that the PF is going down */ |
| 2984 | bnx2x_iov_channel_down(bp); |
| 2985 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2986 | if (CNIC_LOADED(bp)) |
| 2987 | bnx2x_cnic_notify(bp, CNIC_CTL_STOP_CMD); |
| 2988 | |
Vladislav Zolotarov | 9505ee3 | 2011-07-19 01:39:41 +0000 | [diff] [blame] | 2989 | /* Stop Tx */ |
| 2990 | bnx2x_tx_disable(bp); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2991 | netdev_reset_tc(bp->dev); |
Vladislav Zolotarov | 9505ee3 | 2011-07-19 01:39:41 +0000 | [diff] [blame] | 2992 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2993 | bp->rx_mode = BNX2X_RX_MODE_NONE; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2994 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2995 | del_timer_sync(&bp->timer); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2996 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2997 | if (IS_PF(bp)) { |
| 2998 | /* Set ALWAYS_ALIVE bit in shmem */ |
| 2999 | bp->fw_drv_pulse_wr_seq |= DRV_PULSE_ALWAYS_ALIVE; |
| 3000 | bnx2x_drv_pulse(bp); |
| 3001 | bnx2x_stats_handle(bp, STATS_EVENT_STOP); |
| 3002 | bnx2x_save_statistics(bp); |
| 3003 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3004 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3005 | /* wait till consumers catch up with producers in all queues */ |
| 3006 | bnx2x_drain_tx_queues(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3007 | |
Ariel Elior | 9b176b6 | 2013-01-01 05:22:28 +0000 | [diff] [blame] | 3008 | /* if VF indicate to PF this function is going down (PF will delete sp |
| 3009 | * elements and clear initializations |
| 3010 | */ |
| 3011 | if (IS_VF(bp)) |
| 3012 | bnx2x_vfpf_close_vf(bp); |
| 3013 | else if (unload_mode != UNLOAD_RECOVERY) |
| 3014 | /* if this is a normal/close unload need to clean up chip*/ |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 3015 | bnx2x_chip_cleanup(bp, unload_mode, keep_link); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3016 | else { |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 3017 | /* Send the UNLOAD_REQUEST to the MCP */ |
| 3018 | bnx2x_send_unload_req(bp, unload_mode); |
| 3019 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 3020 | /* Prevent transactions to host from the functions on the |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 3021 | * engine that doesn't reset global blocks in case of global |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 3022 | * attention once global blocks are reset and gates are opened |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 3023 | * (the engine which leader will perform the recovery |
| 3024 | * last). |
| 3025 | */ |
| 3026 | if (!CHIP_IS_E1x(bp)) |
| 3027 | bnx2x_pf_disable(bp); |
| 3028 | |
| 3029 | /* Disable HW interrupts, NAPI */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3030 | bnx2x_netif_stop(bp, 1); |
Merav Sicron | 26614ba | 2012-08-27 03:26:19 +0000 | [diff] [blame] | 3031 | /* Delete all NAPI objects */ |
| 3032 | bnx2x_del_all_napi(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3033 | if (CNIC_LOADED(bp)) |
| 3034 | bnx2x_del_all_napi_cnic(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3035 | /* Release IRQs */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 3036 | bnx2x_free_irq(bp); |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 3037 | |
| 3038 | /* Report UNLOAD_DONE to MCP */ |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 3039 | bnx2x_send_unload_done(bp, false); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3040 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3041 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3042 | /* |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 3043 | * 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] | 3044 | * the queueable objects here in case they failed to get cleaned so far. |
| 3045 | */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3046 | if (IS_PF(bp)) |
| 3047 | bnx2x_squeeze_objects(bp); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3048 | |
Vladislav Zolotarov | 7961689 | 2011-07-21 07:58:54 +0000 | [diff] [blame] | 3049 | /* There should be no more pending SP commands at this stage */ |
| 3050 | bp->sp_state = 0; |
| 3051 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3052 | bp->port.pmf = 0; |
| 3053 | |
Dmitry Kravkov | a0d307b | 2013-11-17 08:59:26 +0200 | [diff] [blame] | 3054 | /* clear pending work in rtnl task */ |
| 3055 | bp->sp_rtnl_state = 0; |
| 3056 | smp_mb(); |
| 3057 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3058 | /* Free SKBs, SGEs, TPA pool and driver internals */ |
| 3059 | bnx2x_free_skbs(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3060 | if (CNIC_LOADED(bp)) |
| 3061 | bnx2x_free_skbs_cnic(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 3062 | for_each_rx_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3063 | bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 3064 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3065 | bnx2x_free_fp_mem(bp); |
| 3066 | if (CNIC_LOADED(bp)) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3067 | bnx2x_free_fp_mem_cnic(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3068 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3069 | if (IS_PF(bp)) { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3070 | if (CNIC_LOADED(bp)) |
| 3071 | bnx2x_free_mem_cnic(bp); |
| 3072 | } |
Ariel Elior | b4cddbd | 2013-08-28 01:13:03 +0300 | [diff] [blame] | 3073 | bnx2x_free_mem(bp); |
| 3074 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3075 | bp->state = BNX2X_STATE_CLOSED; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3076 | bp->cnic_loaded = false; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3077 | |
Yuval Mintz | 42f8277 | 2014-03-23 18:12:23 +0200 | [diff] [blame] | 3078 | /* Clear driver version indication in shmem */ |
| 3079 | if (IS_PF(bp)) |
| 3080 | bnx2x_update_mng_version(bp); |
| 3081 | |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 3082 | /* Check if there are pending parity attentions. If there are - set |
| 3083 | * RECOVERY_IN_PROGRESS. |
| 3084 | */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3085 | if (IS_PF(bp) && bnx2x_chk_parity_attn(bp, &global, false)) { |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 3086 | bnx2x_set_reset_in_progress(bp); |
| 3087 | |
| 3088 | /* Set RESET_IS_GLOBAL if needed */ |
| 3089 | if (global) |
| 3090 | bnx2x_set_reset_global(bp); |
| 3091 | } |
| 3092 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3093 | /* The last driver must disable a "close the gate" if there is no |
| 3094 | * parity attention or "process kill" pending. |
| 3095 | */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 3096 | if (IS_PF(bp) && |
| 3097 | !bnx2x_clear_pf_load(bp) && |
| 3098 | bnx2x_reset_is_done(bp, BP_PATH(bp))) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3099 | bnx2x_disable_close_the_gate(bp); |
| 3100 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3101 | DP(NETIF_MSG_IFUP, "Ending NIC unload\n"); |
| 3102 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3103 | return 0; |
| 3104 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3105 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3106 | int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state) |
| 3107 | { |
| 3108 | u16 pmcsr; |
| 3109 | |
Dmitry Kravkov | adf5f6a | 2010-10-17 23:10:02 +0000 | [diff] [blame] | 3110 | /* If there is no power capability, silently succeed */ |
Jon Mason | 29ed74c | 2013-09-11 11:22:39 -0700 | [diff] [blame] | 3111 | if (!bp->pdev->pm_cap) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3112 | BNX2X_DEV_INFO("No power capability. Breaking.\n"); |
Dmitry Kravkov | adf5f6a | 2010-10-17 23:10:02 +0000 | [diff] [blame] | 3113 | return 0; |
| 3114 | } |
| 3115 | |
Jon Mason | 29ed74c | 2013-09-11 11:22:39 -0700 | [diff] [blame] | 3116 | 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] | 3117 | |
| 3118 | switch (state) { |
| 3119 | case PCI_D0: |
Jon Mason | 29ed74c | 2013-09-11 11:22:39 -0700 | [diff] [blame] | 3120 | 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] | 3121 | ((pmcsr & ~PCI_PM_CTRL_STATE_MASK) | |
| 3122 | PCI_PM_CTRL_PME_STATUS)); |
| 3123 | |
| 3124 | if (pmcsr & PCI_PM_CTRL_STATE_MASK) |
| 3125 | /* delay required during transition out of D3hot */ |
| 3126 | msleep(20); |
| 3127 | break; |
| 3128 | |
| 3129 | case PCI_D3hot: |
| 3130 | /* If there are other clients above don't |
| 3131 | shut down the power */ |
| 3132 | if (atomic_read(&bp->pdev->enable_cnt) != 1) |
| 3133 | return 0; |
| 3134 | /* Don't shut down the power for emulation and FPGA */ |
| 3135 | if (CHIP_REV_IS_SLOW(bp)) |
| 3136 | return 0; |
| 3137 | |
| 3138 | pmcsr &= ~PCI_PM_CTRL_STATE_MASK; |
| 3139 | pmcsr |= 3; |
| 3140 | |
| 3141 | if (bp->wol) |
| 3142 | pmcsr |= PCI_PM_CTRL_PME_ENABLE; |
| 3143 | |
Jon Mason | 29ed74c | 2013-09-11 11:22:39 -0700 | [diff] [blame] | 3144 | 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] | 3145 | pmcsr); |
| 3146 | |
| 3147 | /* No more memory access after this point until |
| 3148 | * device is brought back to D0. |
| 3149 | */ |
| 3150 | break; |
| 3151 | |
| 3152 | default: |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3153 | dev_err(&bp->pdev->dev, "Can't support state = %d\n", state); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3154 | return -EINVAL; |
| 3155 | } |
| 3156 | return 0; |
| 3157 | } |
| 3158 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3159 | /* |
| 3160 | * net_device service functions |
| 3161 | */ |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 3162 | static int bnx2x_poll(struct napi_struct *napi, int budget) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3163 | { |
| 3164 | int work_done = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3165 | u8 cos; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3166 | struct bnx2x_fastpath *fp = container_of(napi, struct bnx2x_fastpath, |
| 3167 | napi); |
| 3168 | struct bnx2x *bp = fp->bp; |
| 3169 | |
| 3170 | while (1) { |
| 3171 | #ifdef BNX2X_STOP_ON_ERROR |
| 3172 | if (unlikely(bp->panic)) { |
| 3173 | napi_complete(napi); |
| 3174 | return 0; |
| 3175 | } |
| 3176 | #endif |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3177 | if (!bnx2x_fp_lock_napi(fp)) |
| 3178 | return work_done; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3179 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3180 | for_each_cos_in_tx_queue(fp, cos) |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3181 | if (bnx2x_tx_queue_has_work(fp->txdata_ptr[cos])) |
| 3182 | bnx2x_tx_int(bp, fp->txdata_ptr[cos]); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3183 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3184 | if (bnx2x_has_rx_work(fp)) { |
| 3185 | work_done += bnx2x_rx_int(fp, budget - work_done); |
| 3186 | |
| 3187 | /* must not complete if we consumed full budget */ |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3188 | if (work_done >= budget) { |
| 3189 | bnx2x_fp_unlock_napi(fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3190 | break; |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3191 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3192 | } |
| 3193 | |
| 3194 | /* Fall out from the NAPI loop if needed */ |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3195 | if (!bnx2x_fp_unlock_napi(fp) && |
| 3196 | !(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) { |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3197 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 3198 | /* No need to update SB for FCoE L2 ring as long as |
| 3199 | * it's connected to the default SB and the SB |
| 3200 | * has been updated when NAPI was scheduled. |
| 3201 | */ |
| 3202 | if (IS_FCOE_FP(fp)) { |
| 3203 | napi_complete(napi); |
| 3204 | break; |
| 3205 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3206 | bnx2x_update_fpsb_idx(fp); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3207 | /* bnx2x_has_rx_work() reads the status block, |
| 3208 | * thus we need to ensure that status block indices |
| 3209 | * have been actually read (bnx2x_update_fpsb_idx) |
| 3210 | * prior to this check (bnx2x_has_rx_work) so that |
| 3211 | * we won't write the "newer" value of the status block |
| 3212 | * to IGU (if there was a DMA right after |
| 3213 | * bnx2x_has_rx_work and if there is no rmb, the memory |
| 3214 | * reading (bnx2x_update_fpsb_idx) may be postponed |
| 3215 | * to right before bnx2x_ack_sb). In this case there |
| 3216 | * will never be another interrupt until there is |
| 3217 | * another update of the status block, while there |
| 3218 | * is still unhandled work. |
| 3219 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3220 | rmb(); |
| 3221 | |
| 3222 | if (!(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) { |
| 3223 | napi_complete(napi); |
| 3224 | /* Re-enable interrupts */ |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3225 | DP(NETIF_MSG_RX_STATUS, |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3226 | "Update index to %d\n", fp->fp_hc_idx); |
| 3227 | bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID, |
| 3228 | le16_to_cpu(fp->fp_hc_idx), |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3229 | IGU_INT_ENABLE, 1); |
| 3230 | break; |
| 3231 | } |
| 3232 | } |
| 3233 | } |
| 3234 | |
| 3235 | return work_done; |
| 3236 | } |
| 3237 | |
Cong Wang | e0d1095 | 2013-08-01 11:10:25 +0800 | [diff] [blame] | 3238 | #ifdef CONFIG_NET_RX_BUSY_POLL |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3239 | /* must be called with local_bh_disable()d */ |
| 3240 | int bnx2x_low_latency_recv(struct napi_struct *napi) |
| 3241 | { |
| 3242 | struct bnx2x_fastpath *fp = container_of(napi, struct bnx2x_fastpath, |
| 3243 | napi); |
| 3244 | struct bnx2x *bp = fp->bp; |
| 3245 | int found = 0; |
| 3246 | |
| 3247 | if ((bp->state == BNX2X_STATE_CLOSED) || |
| 3248 | (bp->state == BNX2X_STATE_ERROR) || |
| 3249 | (bp->flags & (TPA_ENABLE_FLAG | GRO_ENABLE_FLAG))) |
| 3250 | return LL_FLUSH_FAILED; |
| 3251 | |
| 3252 | if (!bnx2x_fp_lock_poll(fp)) |
| 3253 | return LL_FLUSH_BUSY; |
| 3254 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 3255 | if (bnx2x_has_rx_work(fp)) |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3256 | found = bnx2x_rx_int(fp, 4); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3257 | |
| 3258 | bnx2x_fp_unlock_poll(fp); |
| 3259 | |
| 3260 | return found; |
| 3261 | } |
| 3262 | #endif |
| 3263 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3264 | /* we split the first BD into headers and data BDs |
| 3265 | * to ease the pain of our fellow microcode engineers |
| 3266 | * we use one mapping for both BDs |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3267 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3268 | static u16 bnx2x_tx_split(struct bnx2x *bp, |
| 3269 | struct bnx2x_fp_txdata *txdata, |
| 3270 | struct sw_tx_bd *tx_buf, |
| 3271 | struct eth_tx_start_bd **tx_bd, u16 hlen, |
| 3272 | u16 bd_prod) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3273 | { |
| 3274 | struct eth_tx_start_bd *h_tx_bd = *tx_bd; |
| 3275 | struct eth_tx_bd *d_tx_bd; |
| 3276 | dma_addr_t mapping; |
| 3277 | int old_len = le16_to_cpu(h_tx_bd->nbytes); |
| 3278 | |
| 3279 | /* first fix first BD */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3280 | h_tx_bd->nbytes = cpu_to_le16(hlen); |
| 3281 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3282 | DP(NETIF_MSG_TX_QUEUED, "TSO split header size is %d (%x:%x)\n", |
| 3283 | 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] | 3284 | |
| 3285 | /* now get a new data BD |
| 3286 | * (after the pbd) and fill it */ |
| 3287 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3288 | d_tx_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3289 | |
| 3290 | mapping = HILO_U64(le32_to_cpu(h_tx_bd->addr_hi), |
| 3291 | le32_to_cpu(h_tx_bd->addr_lo)) + hlen; |
| 3292 | |
| 3293 | d_tx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 3294 | d_tx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 3295 | d_tx_bd->nbytes = cpu_to_le16(old_len - hlen); |
| 3296 | |
| 3297 | /* this marks the BD as one that has no individual mapping */ |
| 3298 | tx_buf->flags |= BNX2X_TSO_SPLIT_BD; |
| 3299 | |
| 3300 | DP(NETIF_MSG_TX_QUEUED, |
| 3301 | "TSO split data size is %d (%x:%x)\n", |
| 3302 | d_tx_bd->nbytes, d_tx_bd->addr_hi, d_tx_bd->addr_lo); |
| 3303 | |
| 3304 | /* update tx_bd */ |
| 3305 | *tx_bd = (struct eth_tx_start_bd *)d_tx_bd; |
| 3306 | |
| 3307 | return bd_prod; |
| 3308 | } |
| 3309 | |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3310 | #define bswab32(b32) ((__force __le32) swab32((__force __u32) (b32))) |
| 3311 | #define bswab16(b16) ((__force __le16) swab16((__force __u16) (b16))) |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3312 | 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] | 3313 | { |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3314 | __sum16 tsum = (__force __sum16) csum; |
| 3315 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3316 | if (fix > 0) |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3317 | tsum = ~csum_fold(csum_sub((__force __wsum) csum, |
| 3318 | csum_partial(t_header - fix, fix, 0))); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3319 | |
| 3320 | else if (fix < 0) |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3321 | tsum = ~csum_fold(csum_add((__force __wsum) csum, |
| 3322 | csum_partial(t_header, -fix, 0))); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3323 | |
Dmitry Kravkov | e2593fc | 2013-02-27 00:04:59 +0000 | [diff] [blame] | 3324 | return bswab16(tsum); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3325 | } |
| 3326 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3327 | static u32 bnx2x_xmit_type(struct bnx2x *bp, struct sk_buff *skb) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3328 | { |
| 3329 | u32 rc; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3330 | __u8 prot = 0; |
| 3331 | __be16 protocol; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3332 | |
| 3333 | if (skb->ip_summed != CHECKSUM_PARTIAL) |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3334 | return XMIT_PLAIN; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3335 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3336 | protocol = vlan_get_protocol(skb); |
| 3337 | if (protocol == htons(ETH_P_IPV6)) { |
| 3338 | rc = XMIT_CSUM_V6; |
| 3339 | prot = ipv6_hdr(skb)->nexthdr; |
| 3340 | } else { |
| 3341 | rc = XMIT_CSUM_V4; |
| 3342 | prot = ip_hdr(skb)->protocol; |
| 3343 | } |
| 3344 | |
| 3345 | if (!CHIP_IS_E1x(bp) && skb->encapsulation) { |
| 3346 | if (inner_ip_hdr(skb)->version == 6) { |
| 3347 | rc |= XMIT_CSUM_ENC_V6; |
| 3348 | if (inner_ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3349 | rc |= XMIT_CSUM_TCP; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3350 | } else { |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3351 | rc |= XMIT_CSUM_ENC_V4; |
| 3352 | if (inner_ip_hdr(skb)->protocol == IPPROTO_TCP) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3353 | rc |= XMIT_CSUM_TCP; |
| 3354 | } |
| 3355 | } |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3356 | if (prot == IPPROTO_TCP) |
| 3357 | rc |= XMIT_CSUM_TCP; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3358 | |
Eric Dumazet | 36a8f39 | 2013-09-29 01:21:32 -0700 | [diff] [blame] | 3359 | if (skb_is_gso(skb)) { |
| 3360 | if (skb_is_gso_v6(skb)) { |
| 3361 | rc |= (XMIT_GSO_V6 | XMIT_CSUM_TCP); |
| 3362 | if (rc & XMIT_CSUM_ENC) |
| 3363 | rc |= XMIT_GSO_ENC_V6; |
| 3364 | } else { |
| 3365 | rc |= (XMIT_GSO_V4 | XMIT_CSUM_TCP); |
| 3366 | if (rc & XMIT_CSUM_ENC) |
| 3367 | rc |= XMIT_GSO_ENC_V4; |
| 3368 | } |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3369 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3370 | |
| 3371 | return rc; |
| 3372 | } |
| 3373 | |
| 3374 | #if (MAX_SKB_FRAGS >= MAX_FETCH_BD - 3) |
| 3375 | /* check if packet requires linearization (packet is too fragmented) |
| 3376 | no need to check fragmentation if page size > 8K (there will be no |
| 3377 | violation to FW restrictions) */ |
| 3378 | static int bnx2x_pkt_req_lin(struct bnx2x *bp, struct sk_buff *skb, |
| 3379 | u32 xmit_type) |
| 3380 | { |
| 3381 | int to_copy = 0; |
| 3382 | int hlen = 0; |
| 3383 | int first_bd_sz = 0; |
| 3384 | |
| 3385 | /* 3 = 1 (for linear data BD) + 2 (for PBD and last BD) */ |
| 3386 | if (skb_shinfo(skb)->nr_frags >= (MAX_FETCH_BD - 3)) { |
| 3387 | |
| 3388 | if (xmit_type & XMIT_GSO) { |
| 3389 | unsigned short lso_mss = skb_shinfo(skb)->gso_size; |
| 3390 | /* Check if LSO packet needs to be copied: |
| 3391 | 3 = 1 (for headers BD) + 2 (for PBD and last BD) */ |
| 3392 | int wnd_size = MAX_FETCH_BD - 3; |
| 3393 | /* Number of windows to check */ |
| 3394 | int num_wnds = skb_shinfo(skb)->nr_frags - wnd_size; |
| 3395 | int wnd_idx = 0; |
| 3396 | int frag_idx = 0; |
| 3397 | u32 wnd_sum = 0; |
| 3398 | |
| 3399 | /* Headers length */ |
| 3400 | hlen = (int)(skb_transport_header(skb) - skb->data) + |
| 3401 | tcp_hdrlen(skb); |
| 3402 | |
| 3403 | /* Amount of data (w/o headers) on linear part of SKB*/ |
| 3404 | first_bd_sz = skb_headlen(skb) - hlen; |
| 3405 | |
| 3406 | wnd_sum = first_bd_sz; |
| 3407 | |
| 3408 | /* Calculate the first sum - it's special */ |
| 3409 | for (frag_idx = 0; frag_idx < wnd_size - 1; frag_idx++) |
| 3410 | wnd_sum += |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3411 | skb_frag_size(&skb_shinfo(skb)->frags[frag_idx]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3412 | |
| 3413 | /* If there was data on linear skb data - check it */ |
| 3414 | if (first_bd_sz > 0) { |
| 3415 | if (unlikely(wnd_sum < lso_mss)) { |
| 3416 | to_copy = 1; |
| 3417 | goto exit_lbl; |
| 3418 | } |
| 3419 | |
| 3420 | wnd_sum -= first_bd_sz; |
| 3421 | } |
| 3422 | |
| 3423 | /* Others are easier: run through the frag list and |
| 3424 | check all windows */ |
| 3425 | for (wnd_idx = 0; wnd_idx <= num_wnds; wnd_idx++) { |
| 3426 | wnd_sum += |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3427 | skb_frag_size(&skb_shinfo(skb)->frags[wnd_idx + wnd_size - 1]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3428 | |
| 3429 | if (unlikely(wnd_sum < lso_mss)) { |
| 3430 | to_copy = 1; |
| 3431 | break; |
| 3432 | } |
| 3433 | wnd_sum -= |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3434 | skb_frag_size(&skb_shinfo(skb)->frags[wnd_idx]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3435 | } |
| 3436 | } else { |
| 3437 | /* in non-LSO too fragmented packet should always |
| 3438 | be linearized */ |
| 3439 | to_copy = 1; |
| 3440 | } |
| 3441 | } |
| 3442 | |
| 3443 | exit_lbl: |
| 3444 | if (unlikely(to_copy)) |
| 3445 | DP(NETIF_MSG_TX_QUEUED, |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3446 | "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] | 3447 | (xmit_type & XMIT_GSO) ? "LSO" : "non-LSO", |
| 3448 | skb_shinfo(skb)->nr_frags, hlen, first_bd_sz); |
| 3449 | |
| 3450 | return to_copy; |
| 3451 | } |
| 3452 | #endif |
| 3453 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3454 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3455 | * bnx2x_set_pbd_gso - update PBD in GSO case. |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3456 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3457 | * @skb: packet skb |
| 3458 | * @pbd: parse BD |
| 3459 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3460 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3461 | static void bnx2x_set_pbd_gso(struct sk_buff *skb, |
| 3462 | struct eth_tx_parse_bd_e1x *pbd, |
| 3463 | u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3464 | { |
| 3465 | pbd->lso_mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3466 | pbd->tcp_send_seq = bswab32(tcp_hdr(skb)->seq); |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3467 | pbd->tcp_flags = pbd_tcp_flags(tcp_hdr(skb)); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3468 | |
| 3469 | if (xmit_type & XMIT_GSO_V4) { |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3470 | pbd->ip_id = bswab16(ip_hdr(skb)->id); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3471 | pbd->tcp_pseudo_csum = |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3472 | bswab16(~csum_tcpudp_magic(ip_hdr(skb)->saddr, |
| 3473 | ip_hdr(skb)->daddr, |
| 3474 | 0, IPPROTO_TCP, 0)); |
Yuval Mintz | 057cf65 | 2013-05-19 04:41:01 +0000 | [diff] [blame] | 3475 | } else { |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3476 | pbd->tcp_pseudo_csum = |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3477 | bswab16(~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, |
| 3478 | &ipv6_hdr(skb)->daddr, |
| 3479 | 0, IPPROTO_TCP, 0)); |
Yuval Mintz | 057cf65 | 2013-05-19 04:41:01 +0000 | [diff] [blame] | 3480 | } |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3481 | |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3482 | pbd->global_data |= |
| 3483 | cpu_to_le16(ETH_TX_PARSE_BD_E1X_PSEUDO_CS_WITHOUT_LEN); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3484 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3485 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3486 | /** |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3487 | * bnx2x_set_pbd_csum_enc - update PBD with checksum and return header length |
| 3488 | * |
| 3489 | * @bp: driver handle |
| 3490 | * @skb: packet skb |
| 3491 | * @parsing_data: data to be updated |
| 3492 | * @xmit_type: xmit flags |
| 3493 | * |
| 3494 | * 57712/578xx related, when skb has encapsulation |
| 3495 | */ |
| 3496 | static u8 bnx2x_set_pbd_csum_enc(struct bnx2x *bp, struct sk_buff *skb, |
| 3497 | u32 *parsing_data, u32 xmit_type) |
| 3498 | { |
| 3499 | *parsing_data |= |
| 3500 | ((((u8 *)skb_inner_transport_header(skb) - skb->data) >> 1) << |
| 3501 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) & |
| 3502 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W; |
| 3503 | |
| 3504 | if (xmit_type & XMIT_CSUM_TCP) { |
| 3505 | *parsing_data |= ((inner_tcp_hdrlen(skb) / 4) << |
| 3506 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) & |
| 3507 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW; |
| 3508 | |
| 3509 | return skb_inner_transport_header(skb) + |
| 3510 | inner_tcp_hdrlen(skb) - skb->data; |
| 3511 | } |
| 3512 | |
| 3513 | /* We support checksum offload for TCP and UDP only. |
| 3514 | * No need to pass the UDP header length - it's a constant. |
| 3515 | */ |
| 3516 | return skb_inner_transport_header(skb) + |
| 3517 | sizeof(struct udphdr) - skb->data; |
| 3518 | } |
| 3519 | |
| 3520 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3521 | * 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] | 3522 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3523 | * @bp: driver handle |
| 3524 | * @skb: packet skb |
| 3525 | * @parsing_data: data to be updated |
| 3526 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3527 | * |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3528 | * 57712/578xx related |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3529 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3530 | static u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb, |
| 3531 | u32 *parsing_data, u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3532 | { |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3533 | *parsing_data |= |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 3534 | ((((u8 *)skb_transport_header(skb) - skb->data) >> 1) << |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3535 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) & |
| 3536 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3537 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3538 | if (xmit_type & XMIT_CSUM_TCP) { |
| 3539 | *parsing_data |= ((tcp_hdrlen(skb) / 4) << |
| 3540 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) & |
| 3541 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3542 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3543 | return skb_transport_header(skb) + tcp_hdrlen(skb) - skb->data; |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 3544 | } |
| 3545 | /* We support checksum offload for TCP and UDP only. |
| 3546 | * No need to pass the UDP header length - it's a constant. |
| 3547 | */ |
| 3548 | return skb_transport_header(skb) + sizeof(struct udphdr) - skb->data; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3549 | } |
| 3550 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3551 | /* set FW indication according to inner or outer protocols if tunneled */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3552 | static void bnx2x_set_sbd_csum(struct bnx2x *bp, struct sk_buff *skb, |
| 3553 | struct eth_tx_start_bd *tx_start_bd, |
| 3554 | u32 xmit_type) |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3555 | { |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3556 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_L4_CSUM; |
| 3557 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3558 | if (xmit_type & (XMIT_CSUM_ENC_V6 | XMIT_CSUM_V6)) |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3559 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_IPV6; |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3560 | |
| 3561 | if (!(xmit_type & XMIT_CSUM_TCP)) |
| 3562 | 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] | 3563 | } |
| 3564 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3565 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3566 | * bnx2x_set_pbd_csum - update PBD with checksum and return header length |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3567 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3568 | * @bp: driver handle |
| 3569 | * @skb: packet skb |
| 3570 | * @pbd: parse BD to be updated |
| 3571 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3572 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3573 | static u8 bnx2x_set_pbd_csum(struct bnx2x *bp, struct sk_buff *skb, |
| 3574 | struct eth_tx_parse_bd_e1x *pbd, |
| 3575 | u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3576 | { |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3577 | u8 hlen = (skb_network_header(skb) - skb->data) >> 1; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3578 | |
| 3579 | /* for now NS flag is not used in Linux */ |
| 3580 | pbd->global_data = |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3581 | cpu_to_le16(hlen | |
| 3582 | ((skb->protocol == cpu_to_be16(ETH_P_8021Q)) << |
| 3583 | ETH_TX_PARSE_BD_E1X_LLC_SNAP_EN_SHIFT)); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3584 | |
| 3585 | pbd->ip_hlen_w = (skb_transport_header(skb) - |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3586 | skb_network_header(skb)) >> 1; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3587 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3588 | hlen += pbd->ip_hlen_w; |
| 3589 | |
| 3590 | /* We support checksum offload for TCP and UDP only */ |
| 3591 | if (xmit_type & XMIT_CSUM_TCP) |
| 3592 | hlen += tcp_hdrlen(skb) / 2; |
| 3593 | else |
| 3594 | hlen += sizeof(struct udphdr) / 2; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3595 | |
| 3596 | pbd->total_hlen_w = cpu_to_le16(hlen); |
| 3597 | hlen = hlen*2; |
| 3598 | |
| 3599 | if (xmit_type & XMIT_CSUM_TCP) { |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3600 | pbd->tcp_pseudo_csum = bswab16(tcp_hdr(skb)->check); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3601 | |
| 3602 | } else { |
| 3603 | s8 fix = SKB_CS_OFF(skb); /* signed! */ |
| 3604 | |
| 3605 | DP(NETIF_MSG_TX_QUEUED, |
| 3606 | "hlen %d fix %d csum before fix %x\n", |
| 3607 | le16_to_cpu(pbd->total_hlen_w), fix, SKB_CS(skb)); |
| 3608 | |
| 3609 | /* HW bug: fixup the CSUM */ |
| 3610 | pbd->tcp_pseudo_csum = |
| 3611 | bnx2x_csum_fix(skb_transport_header(skb), |
| 3612 | SKB_CS(skb), fix); |
| 3613 | |
| 3614 | DP(NETIF_MSG_TX_QUEUED, "csum after fix %x\n", |
| 3615 | pbd->tcp_pseudo_csum); |
| 3616 | } |
| 3617 | |
| 3618 | return hlen; |
| 3619 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3620 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3621 | static void bnx2x_update_pbds_gso_enc(struct sk_buff *skb, |
| 3622 | struct eth_tx_parse_bd_e2 *pbd_e2, |
| 3623 | struct eth_tx_parse_2nd_bd *pbd2, |
| 3624 | u16 *global_data, |
| 3625 | u32 xmit_type) |
| 3626 | { |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3627 | u16 hlen_w = 0; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3628 | u8 outerip_off, outerip_len = 0; |
Dmitry Kravkov | e768fb2 | 2013-06-02 23:28:41 +0000 | [diff] [blame] | 3629 | |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3630 | /* from outer IP to transport */ |
| 3631 | hlen_w = (skb_inner_transport_header(skb) - |
| 3632 | skb_network_header(skb)) >> 1; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3633 | |
| 3634 | /* transport len */ |
Dmitry Kravkov | e768fb2 | 2013-06-02 23:28:41 +0000 | [diff] [blame] | 3635 | hlen_w += inner_tcp_hdrlen(skb) >> 1; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3636 | |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3637 | pbd2->fw_ip_hdr_to_payload_w = hlen_w; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3638 | |
Dmitry Kravkov | e768fb2 | 2013-06-02 23:28:41 +0000 | [diff] [blame] | 3639 | /* outer IP header info */ |
| 3640 | if (xmit_type & XMIT_CSUM_V4) { |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3641 | struct iphdr *iph = ip_hdr(skb); |
Dmitry Kravkov | 1b4fc0e | 2013-07-11 15:48:21 +0300 | [diff] [blame] | 3642 | u32 csum = (__force u32)(~iph->check) - |
| 3643 | (__force u32)iph->tot_len - |
| 3644 | (__force u32)iph->frag_off; |
Yuval Mintz | c957d09 | 2013-06-25 08:50:11 +0300 | [diff] [blame] | 3645 | |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 3646 | outerip_len = iph->ihl << 1; |
| 3647 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3648 | pbd2->fw_ip_csum_wo_len_flags_frag = |
Yuval Mintz | c957d09 | 2013-06-25 08:50:11 +0300 | [diff] [blame] | 3649 | bswab16(csum_fold((__force __wsum)csum)); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3650 | } else { |
| 3651 | pbd2->fw_ip_hdr_to_payload_w = |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3652 | hlen_w - ((sizeof(struct ipv6hdr)) >> 1); |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 3653 | pbd_e2->data.tunnel_data.flags |= |
Dmitry Kravkov | 05f8461 | 2014-08-28 16:54:24 +0300 | [diff] [blame^] | 3654 | ETH_TUNNEL_DATA_IP_HDR_TYPE_OUTER; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3655 | } |
| 3656 | |
| 3657 | pbd2->tcp_send_seq = bswab32(inner_tcp_hdr(skb)->seq); |
| 3658 | |
| 3659 | pbd2->tcp_flags = pbd_tcp_flags(inner_tcp_hdr(skb)); |
| 3660 | |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 3661 | /* inner IP header info */ |
| 3662 | if (xmit_type & XMIT_CSUM_ENC_V4) { |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3663 | pbd2->hw_ip_id = bswab16(inner_ip_hdr(skb)->id); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3664 | |
| 3665 | pbd_e2->data.tunnel_data.pseudo_csum = |
| 3666 | bswab16(~csum_tcpudp_magic( |
| 3667 | inner_ip_hdr(skb)->saddr, |
| 3668 | inner_ip_hdr(skb)->daddr, |
| 3669 | 0, IPPROTO_TCP, 0)); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3670 | } else { |
| 3671 | pbd_e2->data.tunnel_data.pseudo_csum = |
| 3672 | bswab16(~csum_ipv6_magic( |
| 3673 | &inner_ipv6_hdr(skb)->saddr, |
| 3674 | &inner_ipv6_hdr(skb)->daddr, |
| 3675 | 0, IPPROTO_TCP, 0)); |
| 3676 | } |
| 3677 | |
| 3678 | outerip_off = (skb_network_header(skb) - skb->data) >> 1; |
| 3679 | |
| 3680 | *global_data |= |
| 3681 | outerip_off | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3682 | (outerip_len << |
| 3683 | ETH_TX_PARSE_2ND_BD_IP_HDR_LEN_OUTER_W_SHIFT) | |
| 3684 | ((skb->protocol == cpu_to_be16(ETH_P_8021Q)) << |
| 3685 | ETH_TX_PARSE_2ND_BD_LLC_SNAP_EN_SHIFT); |
Dmitry Kravkov | 65bc0cf | 2013-04-28 08:16:02 +0000 | [diff] [blame] | 3686 | |
| 3687 | if (ip_hdr(skb)->protocol == IPPROTO_UDP) { |
| 3688 | SET_FLAG(*global_data, ETH_TX_PARSE_2ND_BD_TUNNEL_UDP_EXIST, 1); |
| 3689 | pbd2->tunnel_udp_hdr_start_w = skb_transport_offset(skb) >> 1; |
| 3690 | } |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3691 | } |
| 3692 | |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 3693 | static inline void bnx2x_set_ipv6_ext_e2(struct sk_buff *skb, u32 *parsing_data, |
| 3694 | u32 xmit_type) |
| 3695 | { |
| 3696 | struct ipv6hdr *ipv6; |
| 3697 | |
| 3698 | if (!(xmit_type & (XMIT_GSO_ENC_V6 | XMIT_GSO_V6))) |
| 3699 | return; |
| 3700 | |
| 3701 | if (xmit_type & XMIT_GSO_ENC_V6) |
| 3702 | ipv6 = inner_ipv6_hdr(skb); |
| 3703 | else /* XMIT_GSO_V6 */ |
| 3704 | ipv6 = ipv6_hdr(skb); |
| 3705 | |
| 3706 | if (ipv6->nexthdr == NEXTHDR_IPV6) |
| 3707 | *parsing_data |= ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR; |
| 3708 | } |
| 3709 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3710 | /* called with netif_tx_lock |
| 3711 | * bnx2x_tx_int() runs without netif_tx_lock unless it needs to call |
| 3712 | * netif_wake_queue() |
| 3713 | */ |
| 3714 | netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 3715 | { |
| 3716 | struct bnx2x *bp = netdev_priv(dev); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3717 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3718 | struct netdev_queue *txq; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3719 | struct bnx2x_fp_txdata *txdata; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3720 | struct sw_tx_bd *tx_buf; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3721 | struct eth_tx_start_bd *tx_start_bd, *first_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3722 | struct eth_tx_bd *tx_data_bd, *total_pkt_bd = NULL; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3723 | struct eth_tx_parse_bd_e1x *pbd_e1x = NULL; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3724 | struct eth_tx_parse_bd_e2 *pbd_e2 = NULL; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3725 | struct eth_tx_parse_2nd_bd *pbd2 = NULL; |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3726 | u32 pbd_e2_parsing_data = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3727 | u16 pkt_prod, bd_prod; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3728 | int nbd, txq_index; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3729 | dma_addr_t mapping; |
| 3730 | u32 xmit_type = bnx2x_xmit_type(bp, skb); |
| 3731 | int i; |
| 3732 | u8 hlen = 0; |
| 3733 | __le16 pkt_size = 0; |
| 3734 | struct ethhdr *eth; |
| 3735 | u8 mac_type = UNICAST_ADDRESS; |
| 3736 | |
| 3737 | #ifdef BNX2X_STOP_ON_ERROR |
| 3738 | if (unlikely(bp->panic)) |
| 3739 | return NETDEV_TX_BUSY; |
| 3740 | #endif |
| 3741 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3742 | txq_index = skb_get_queue_mapping(skb); |
| 3743 | txq = netdev_get_tx_queue(dev, txq_index); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3744 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3745 | 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] | 3746 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3747 | txdata = &bp->bnx2x_txq[txq_index]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3748 | |
| 3749 | /* enable this debug print to view the transmission queue being used |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3750 | 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] | 3751 | txq_index, fp_index, txdata_index); */ |
| 3752 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 3753 | /* enable this debug print to view the transmission details |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3754 | DP(NETIF_MSG_TX_QUEUED, |
| 3755 | "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] | 3756 | txdata->cid, fp_index, txdata_index, txdata, fp); */ |
| 3757 | |
| 3758 | if (unlikely(bnx2x_tx_avail(bp, txdata) < |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 3759 | skb_shinfo(skb)->nr_frags + |
| 3760 | BDS_PER_TX_PKT + |
| 3761 | NEXT_CNT_PER_TX_PKT(MAX_BDS_PER_TX_PKT))) { |
Dmitry Kravkov | 2384d6a | 2012-10-16 01:28:27 +0000 | [diff] [blame] | 3762 | /* Handle special storage cases separately */ |
Dmitry Kravkov | c96bdc0 | 2012-12-02 04:05:48 +0000 | [diff] [blame] | 3763 | if (txdata->tx_ring_size == 0) { |
| 3764 | struct bnx2x_eth_q_stats *q_stats = |
| 3765 | bnx2x_fp_qstats(bp, txdata->parent_fp); |
| 3766 | q_stats->driver_filtered_tx_pkt++; |
| 3767 | dev_kfree_skb(skb); |
| 3768 | return NETDEV_TX_OK; |
| 3769 | } |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 3770 | bnx2x_fp_qstats(bp, txdata->parent_fp)->driver_xoff++; |
| 3771 | netif_tx_stop_queue(txq); |
Dmitry Kravkov | c96bdc0 | 2012-12-02 04:05:48 +0000 | [diff] [blame] | 3772 | BNX2X_ERR("BUG! Tx ring full when queue awake!\n"); |
Dmitry Kravkov | 2384d6a | 2012-10-16 01:28:27 +0000 | [diff] [blame] | 3773 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3774 | return NETDEV_TX_BUSY; |
| 3775 | } |
| 3776 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3777 | DP(NETIF_MSG_TX_QUEUED, |
Yuval Mintz | 04c4673 | 2013-01-23 03:21:46 +0000 | [diff] [blame] | 3778 | "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] | 3779 | txq_index, skb->ip_summed, skb->protocol, ipv6_hdr(skb)->nexthdr, |
Yuval Mintz | 04c4673 | 2013-01-23 03:21:46 +0000 | [diff] [blame] | 3780 | ip_hdr(skb)->protocol, skb_shinfo(skb)->gso_type, xmit_type, |
| 3781 | skb->len); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3782 | |
| 3783 | eth = (struct ethhdr *)skb->data; |
| 3784 | |
| 3785 | /* set flag according to packet type (UNICAST_ADDRESS is default)*/ |
| 3786 | if (unlikely(is_multicast_ether_addr(eth->h_dest))) { |
| 3787 | if (is_broadcast_ether_addr(eth->h_dest)) |
| 3788 | mac_type = BROADCAST_ADDRESS; |
| 3789 | else |
| 3790 | mac_type = MULTICAST_ADDRESS; |
| 3791 | } |
| 3792 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3793 | #if (MAX_SKB_FRAGS >= MAX_FETCH_BD - BDS_PER_TX_PKT) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3794 | /* First, check if we need to linearize the skb (due to FW |
| 3795 | restrictions). No need to check fragmentation if page size > 8K |
| 3796 | (there will be no violation to FW restrictions) */ |
| 3797 | if (bnx2x_pkt_req_lin(bp, skb, xmit_type)) { |
| 3798 | /* Statistics of linearization */ |
| 3799 | bp->lin_cnt++; |
| 3800 | if (skb_linearize(skb) != 0) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3801 | DP(NETIF_MSG_TX_QUEUED, |
| 3802 | "SKB linearization failed - silently dropping this SKB\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3803 | dev_kfree_skb_any(skb); |
| 3804 | return NETDEV_TX_OK; |
| 3805 | } |
| 3806 | } |
| 3807 | #endif |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3808 | /* Map skb linear data for DMA */ |
| 3809 | mapping = dma_map_single(&bp->pdev->dev, skb->data, |
| 3810 | skb_headlen(skb), DMA_TO_DEVICE); |
| 3811 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3812 | DP(NETIF_MSG_TX_QUEUED, |
| 3813 | "SKB mapping failed - silently dropping this SKB\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3814 | dev_kfree_skb_any(skb); |
| 3815 | return NETDEV_TX_OK; |
| 3816 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3817 | /* |
| 3818 | Please read carefully. First we use one BD which we mark as start, |
| 3819 | then we have a parsing info BD (used for TSO or xsum), |
| 3820 | and only then we have the rest of the TSO BDs. |
| 3821 | (don't forget to mark the last one as last, |
| 3822 | and to unmap only AFTER you write to the BD ...) |
| 3823 | And above all, all pdb sizes are in words - NOT DWORDS! |
| 3824 | */ |
| 3825 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3826 | /* get current pkt produced now - advance it just before sending packet |
| 3827 | * since mapping of pages may fail and cause packet to be dropped |
| 3828 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3829 | pkt_prod = txdata->tx_pkt_prod; |
| 3830 | bd_prod = TX_BD(txdata->tx_bd_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3831 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3832 | /* get a tx_buf and first BD |
| 3833 | * tx_start_bd may be changed during SPLIT, |
| 3834 | * but first_bd will always stay first |
| 3835 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3836 | tx_buf = &txdata->tx_buf_ring[TX_BD(pkt_prod)]; |
| 3837 | tx_start_bd = &txdata->tx_desc_ring[bd_prod].start_bd; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3838 | first_bd = tx_start_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3839 | |
| 3840 | 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] | 3841 | |
Michal Kalderon | eeed018 | 2014-08-17 16:47:44 +0300 | [diff] [blame] | 3842 | if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) { |
| 3843 | if (!(bp->flags & TX_TIMESTAMPING_EN)) { |
| 3844 | BNX2X_ERR("Tx timestamping was not enabled, this packet will not be timestamped\n"); |
| 3845 | } else if (bp->ptp_tx_skb) { |
| 3846 | BNX2X_ERR("The device supports only a single outstanding packet to timestamp, this packet will not be timestamped\n"); |
| 3847 | } else { |
| 3848 | skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; |
| 3849 | /* schedule check for Tx timestamp */ |
| 3850 | bp->ptp_tx_skb = skb_get(skb); |
| 3851 | bp->ptp_tx_start = jiffies; |
| 3852 | schedule_work(&bp->ptp_task); |
| 3853 | } |
| 3854 | } |
| 3855 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3856 | /* header nbd: indirectly zero other flags! */ |
| 3857 | 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] | 3858 | |
| 3859 | /* remember the first BD of the packet */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3860 | tx_buf->first_bd = txdata->tx_bd_prod; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3861 | tx_buf->skb = skb; |
| 3862 | tx_buf->flags = 0; |
| 3863 | |
| 3864 | DP(NETIF_MSG_TX_QUEUED, |
| 3865 | "sending pkt %u @%p next_idx %u bd %u @%p\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3866 | 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] | 3867 | |
Jesse Gross | eab6d18 | 2010-10-20 13:56:03 +0000 | [diff] [blame] | 3868 | if (vlan_tx_tag_present(skb)) { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3869 | tx_start_bd->vlan_or_ethertype = |
| 3870 | cpu_to_le16(vlan_tx_tag_get(skb)); |
| 3871 | tx_start_bd->bd_flags.as_bitfield |= |
| 3872 | (X_ETH_OUTBAND_VLAN << ETH_TX_BD_FLAGS_VLAN_MODE_SHIFT); |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3873 | } else { |
| 3874 | /* when transmitting in a vf, start bd must hold the ethertype |
| 3875 | * for fw to enforce it |
| 3876 | */ |
Yuval Mintz | ea36475a | 2014-08-25 17:48:30 +0300 | [diff] [blame] | 3877 | #ifndef BNX2X_STOP_ON_ERROR |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3878 | if (IS_VF(bp)) |
Yuval Mintz | ea36475a | 2014-08-25 17:48:30 +0300 | [diff] [blame] | 3879 | #endif |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3880 | tx_start_bd->vlan_or_ethertype = |
| 3881 | cpu_to_le16(ntohs(eth->h_proto)); |
Yuval Mintz | ea36475a | 2014-08-25 17:48:30 +0300 | [diff] [blame] | 3882 | #ifndef BNX2X_STOP_ON_ERROR |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3883 | else |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3884 | /* used by FW for packet accounting */ |
| 3885 | tx_start_bd->vlan_or_ethertype = cpu_to_le16(pkt_prod); |
Yuval Mintz | ea36475a | 2014-08-25 17:48:30 +0300 | [diff] [blame] | 3886 | #endif |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3887 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3888 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3889 | nbd = 2; /* start_bd + pbd + frags (updated when pages are mapped) */ |
| 3890 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3891 | /* turn on parsing and get a BD */ |
| 3892 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3893 | |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3894 | if (xmit_type & XMIT_CSUM) |
| 3895 | bnx2x_set_sbd_csum(bp, skb, tx_start_bd, xmit_type); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3896 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3897 | if (!CHIP_IS_E1x(bp)) { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3898 | pbd_e2 = &txdata->tx_desc_ring[bd_prod].parse_bd_e2; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3899 | memset(pbd_e2, 0, sizeof(struct eth_tx_parse_bd_e2)); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3900 | |
| 3901 | if (xmit_type & XMIT_CSUM_ENC) { |
| 3902 | u16 global_data = 0; |
| 3903 | |
| 3904 | /* Set PBD in enc checksum offload case */ |
| 3905 | hlen = bnx2x_set_pbd_csum_enc(bp, skb, |
| 3906 | &pbd_e2_parsing_data, |
| 3907 | xmit_type); |
| 3908 | |
| 3909 | /* turn on 2nd parsing and get a BD */ |
| 3910 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
| 3911 | |
| 3912 | pbd2 = &txdata->tx_desc_ring[bd_prod].parse_2nd_bd; |
| 3913 | |
| 3914 | memset(pbd2, 0, sizeof(*pbd2)); |
| 3915 | |
| 3916 | pbd_e2->data.tunnel_data.ip_hdr_start_inner_w = |
| 3917 | (skb_inner_network_header(skb) - |
| 3918 | skb->data) >> 1; |
| 3919 | |
| 3920 | if (xmit_type & XMIT_GSO_ENC) |
| 3921 | bnx2x_update_pbds_gso_enc(skb, pbd_e2, pbd2, |
| 3922 | &global_data, |
| 3923 | xmit_type); |
| 3924 | |
| 3925 | pbd2->global_data = cpu_to_le16(global_data); |
| 3926 | |
| 3927 | /* add addition parse BD indication to start BD */ |
| 3928 | SET_FLAG(tx_start_bd->general_data, |
| 3929 | ETH_TX_START_BD_PARSE_NBDS, 1); |
| 3930 | /* set encapsulation flag in start BD */ |
| 3931 | SET_FLAG(tx_start_bd->general_data, |
| 3932 | ETH_TX_START_BD_TUNNEL_EXIST, 1); |
Dmitry Kravkov | fe26566d | 2014-07-24 18:54:47 +0300 | [diff] [blame] | 3933 | |
| 3934 | tx_buf->flags |= BNX2X_HAS_SECOND_PBD; |
| 3935 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3936 | nbd++; |
| 3937 | } else if (xmit_type & XMIT_CSUM) { |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3938 | /* Set PBD in checksum offload case w/o encapsulation */ |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3939 | hlen = bnx2x_set_pbd_csum_e2(bp, skb, |
| 3940 | &pbd_e2_parsing_data, |
| 3941 | xmit_type); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3942 | } |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3943 | |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 3944 | bnx2x_set_ipv6_ext_e2(skb, &pbd_e2_parsing_data, xmit_type); |
Yuval Mintz | babe723 | 2014-02-27 15:42:26 +0200 | [diff] [blame] | 3945 | /* Add the macs to the parsing BD if this is a vf or if |
| 3946 | * Tx Switching is enabled. |
| 3947 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3948 | if (IS_VF(bp)) { |
| 3949 | /* override GRE parameters in BD */ |
| 3950 | bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.src_hi, |
| 3951 | &pbd_e2->data.mac_addr.src_mid, |
| 3952 | &pbd_e2->data.mac_addr.src_lo, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3953 | eth->h_source); |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3954 | |
| 3955 | bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.dst_hi, |
| 3956 | &pbd_e2->data.mac_addr.dst_mid, |
| 3957 | &pbd_e2->data.mac_addr.dst_lo, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3958 | eth->h_dest); |
Yuval Mintz | ea36475a | 2014-08-25 17:48:30 +0300 | [diff] [blame] | 3959 | } else { |
| 3960 | if (bp->flags & TX_SWITCHING) |
| 3961 | bnx2x_set_fw_mac_addr( |
| 3962 | &pbd_e2->data.mac_addr.dst_hi, |
| 3963 | &pbd_e2->data.mac_addr.dst_mid, |
| 3964 | &pbd_e2->data.mac_addr.dst_lo, |
| 3965 | eth->h_dest); |
| 3966 | #ifdef BNX2X_STOP_ON_ERROR |
| 3967 | /* Enforce security is always set in Stop on Error - |
| 3968 | * source mac should be present in the parsing BD |
| 3969 | */ |
| 3970 | bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.src_hi, |
| 3971 | &pbd_e2->data.mac_addr.src_mid, |
| 3972 | &pbd_e2->data.mac_addr.src_lo, |
| 3973 | eth->h_source); |
| 3974 | #endif |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3975 | } |
Yuval Mintz | 96bed4b | 2012-10-01 03:46:19 +0000 | [diff] [blame] | 3976 | |
| 3977 | SET_FLAG(pbd_e2_parsing_data, |
| 3978 | ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE, mac_type); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3979 | } else { |
Yuval Mintz | 96bed4b | 2012-10-01 03:46:19 +0000 | [diff] [blame] | 3980 | u16 global_data = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3981 | pbd_e1x = &txdata->tx_desc_ring[bd_prod].parse_bd_e1x; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3982 | memset(pbd_e1x, 0, sizeof(struct eth_tx_parse_bd_e1x)); |
| 3983 | /* Set PBD in checksum offload case */ |
| 3984 | if (xmit_type & XMIT_CSUM) |
| 3985 | hlen = bnx2x_set_pbd_csum(bp, skb, pbd_e1x, xmit_type); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3986 | |
Yuval Mintz | 96bed4b | 2012-10-01 03:46:19 +0000 | [diff] [blame] | 3987 | SET_FLAG(global_data, |
| 3988 | ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE, mac_type); |
| 3989 | pbd_e1x->global_data |= cpu_to_le16(global_data); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3990 | } |
| 3991 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3992 | /* Setup the data pointer of the first BD of the packet */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3993 | tx_start_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 3994 | tx_start_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3995 | tx_start_bd->nbytes = cpu_to_le16(skb_headlen(skb)); |
| 3996 | pkt_size = tx_start_bd->nbytes; |
| 3997 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3998 | DP(NETIF_MSG_TX_QUEUED, |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3999 | "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] | 4000 | 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] | 4001 | le16_to_cpu(tx_start_bd->nbytes), |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4002 | tx_start_bd->bd_flags.as_bitfield, |
| 4003 | le16_to_cpu(tx_start_bd->vlan_or_ethertype)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4004 | |
| 4005 | if (xmit_type & XMIT_GSO) { |
| 4006 | |
| 4007 | DP(NETIF_MSG_TX_QUEUED, |
| 4008 | "TSO packet len %d hlen %d total len %d tso size %d\n", |
| 4009 | skb->len, hlen, skb_headlen(skb), |
| 4010 | skb_shinfo(skb)->gso_size); |
| 4011 | |
| 4012 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_SW_LSO; |
| 4013 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 4014 | if (unlikely(skb_headlen(skb) > hlen)) { |
| 4015 | nbd++; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4016 | bd_prod = bnx2x_tx_split(bp, txdata, tx_buf, |
| 4017 | &tx_start_bd, hlen, |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 4018 | bd_prod); |
| 4019 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4020 | if (!CHIP_IS_E1x(bp)) |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 4021 | pbd_e2_parsing_data |= |
| 4022 | (skb_shinfo(skb)->gso_size << |
| 4023 | ETH_TX_PARSE_BD_E2_LSO_MSS_SHIFT) & |
| 4024 | ETH_TX_PARSE_BD_E2_LSO_MSS; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 4025 | else |
Dmitry Kravkov | e42780b | 2014-08-17 16:47:43 +0300 | [diff] [blame] | 4026 | bnx2x_set_pbd_gso(skb, pbd_e1x, xmit_type); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4027 | } |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 4028 | |
| 4029 | /* Set the PBD's parsing_data field if not zero |
| 4030 | * (for the chips newer than 57711). |
| 4031 | */ |
| 4032 | if (pbd_e2_parsing_data) |
| 4033 | pbd_e2->parsing_data = cpu_to_le32(pbd_e2_parsing_data); |
| 4034 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4035 | tx_data_bd = (struct eth_tx_bd *)tx_start_bd; |
| 4036 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 4037 | /* Handle fragmented skb */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4038 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| 4039 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
| 4040 | |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 4041 | mapping = skb_frag_dma_map(&bp->pdev->dev, frag, 0, |
| 4042 | skb_frag_size(frag), DMA_TO_DEVICE); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4043 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 4044 | unsigned int pkts_compl = 0, bytes_compl = 0; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4045 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4046 | DP(NETIF_MSG_TX_QUEUED, |
| 4047 | "Unable to map page - dropping packet...\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4048 | |
| 4049 | /* we need unmap all buffers already mapped |
| 4050 | * for this SKB; |
| 4051 | * first_bd->nbd need to be properly updated |
| 4052 | * before call to bnx2x_free_tx_pkt |
| 4053 | */ |
| 4054 | first_bd->nbd = cpu_to_le16(nbd); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4055 | bnx2x_free_tx_pkt(bp, txdata, |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 4056 | TX_BD(txdata->tx_pkt_prod), |
| 4057 | &pkts_compl, &bytes_compl); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4058 | return NETDEV_TX_OK; |
| 4059 | } |
| 4060 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4061 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4062 | tx_data_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4063 | if (total_pkt_bd == NULL) |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4064 | total_pkt_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4065 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4066 | tx_data_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 4067 | tx_data_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 4068 | tx_data_bd->nbytes = cpu_to_le16(skb_frag_size(frag)); |
| 4069 | le16_add_cpu(&pkt_size, skb_frag_size(frag)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4070 | nbd++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4071 | |
| 4072 | DP(NETIF_MSG_TX_QUEUED, |
| 4073 | "frag %d bd @%p addr (%x:%x) nbytes %d\n", |
| 4074 | i, tx_data_bd, tx_data_bd->addr_hi, tx_data_bd->addr_lo, |
| 4075 | le16_to_cpu(tx_data_bd->nbytes)); |
| 4076 | } |
| 4077 | |
| 4078 | DP(NETIF_MSG_TX_QUEUED, "last bd @%p\n", tx_data_bd); |
| 4079 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4080 | /* update with actual num BDs */ |
| 4081 | first_bd->nbd = cpu_to_le16(nbd); |
| 4082 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4083 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
| 4084 | |
| 4085 | /* now send a tx doorbell, counting the next BD |
| 4086 | * if the packet contains or ends with it |
| 4087 | */ |
| 4088 | if (TX_BD_POFF(bd_prod) < nbd) |
| 4089 | nbd++; |
| 4090 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4091 | /* total_pkt_bytes should be set on the first data BD if |
| 4092 | * it's not an LSO packet and there is more than one |
| 4093 | * data BD. In this case pkt_size is limited by an MTU value. |
| 4094 | * However we prefer to set it for an LSO packet (while we don't |
| 4095 | * have to) in order to save some CPU cycles in a none-LSO |
| 4096 | * case, when we much more care about them. |
| 4097 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4098 | if (total_pkt_bd != NULL) |
| 4099 | total_pkt_bd->total_pkt_bytes = pkt_size; |
| 4100 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4101 | if (pbd_e1x) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4102 | DP(NETIF_MSG_TX_QUEUED, |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4103 | "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] | 4104 | pbd_e1x, pbd_e1x->global_data, pbd_e1x->ip_hlen_w, |
| 4105 | pbd_e1x->ip_id, pbd_e1x->lso_mss, pbd_e1x->tcp_flags, |
| 4106 | pbd_e1x->tcp_pseudo_csum, pbd_e1x->tcp_send_seq, |
| 4107 | le16_to_cpu(pbd_e1x->total_hlen_w)); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 4108 | if (pbd_e2) |
| 4109 | DP(NETIF_MSG_TX_QUEUED, |
| 4110 | "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] | 4111 | pbd_e2, |
| 4112 | pbd_e2->data.mac_addr.dst_hi, |
| 4113 | pbd_e2->data.mac_addr.dst_mid, |
| 4114 | pbd_e2->data.mac_addr.dst_lo, |
| 4115 | pbd_e2->data.mac_addr.src_hi, |
| 4116 | pbd_e2->data.mac_addr.src_mid, |
| 4117 | pbd_e2->data.mac_addr.src_lo, |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 4118 | pbd_e2->parsing_data); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4119 | DP(NETIF_MSG_TX_QUEUED, "doorbell: nbd %d bd %u\n", nbd, bd_prod); |
| 4120 | |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 4121 | netdev_tx_sent_queue(txq, skb->len); |
| 4122 | |
Willem de Bruijn | 8373c57 | 2012-04-27 09:04:06 +0000 | [diff] [blame] | 4123 | skb_tx_timestamp(skb); |
| 4124 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4125 | txdata->tx_pkt_prod++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4126 | /* |
| 4127 | * Make sure that the BD data is updated before updating the producer |
| 4128 | * since FW might read the BD right after the producer is updated. |
| 4129 | * This is only applicable for weak-ordered memory model archs such |
| 4130 | * as IA-64. The following barrier is also mandatory since FW will |
| 4131 | * assumes packets must have BDs. |
| 4132 | */ |
| 4133 | wmb(); |
| 4134 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4135 | txdata->tx_db.data.prod += nbd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4136 | barrier(); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 4137 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4138 | DOORBELL(bp, txdata->cid, txdata->tx_db.raw); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4139 | |
| 4140 | mmiowb(); |
| 4141 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4142 | txdata->tx_bd_prod += nbd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4143 | |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 4144 | if (unlikely(bnx2x_tx_avail(bp, txdata) < MAX_DESC_PER_TX_PKT)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4145 | netif_tx_stop_queue(txq); |
| 4146 | |
| 4147 | /* paired memory barrier is in bnx2x_tx_int(), we have to keep |
| 4148 | * ordering of set_bit() in netif_tx_stop_queue() and read of |
| 4149 | * fp->bd_tx_cons */ |
| 4150 | smp_mb(); |
| 4151 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4152 | bnx2x_fp_qstats(bp, txdata->parent_fp)->driver_xoff++; |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 4153 | if (bnx2x_tx_avail(bp, txdata) >= MAX_DESC_PER_TX_PKT) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4154 | netif_tx_wake_queue(txq); |
| 4155 | } |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4156 | txdata->tx_pkt++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4157 | |
| 4158 | return NETDEV_TX_OK; |
| 4159 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 4160 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4161 | /** |
| 4162 | * bnx2x_setup_tc - routine to configure net_device for multi tc |
| 4163 | * |
| 4164 | * @netdev: net device to configure |
| 4165 | * @tc: number of traffic classes to enable |
| 4166 | * |
| 4167 | * callback connected to the ndo_setup_tc function pointer |
| 4168 | */ |
| 4169 | int bnx2x_setup_tc(struct net_device *dev, u8 num_tc) |
| 4170 | { |
| 4171 | int cos, prio, count, offset; |
| 4172 | struct bnx2x *bp = netdev_priv(dev); |
| 4173 | |
| 4174 | /* setup tc must be called under rtnl lock */ |
| 4175 | ASSERT_RTNL(); |
| 4176 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 4177 | /* no traffic classes requested. Aborting */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4178 | if (!num_tc) { |
| 4179 | netdev_reset_tc(dev); |
| 4180 | return 0; |
| 4181 | } |
| 4182 | |
| 4183 | /* requested to support too many traffic classes */ |
| 4184 | if (num_tc > bp->max_cos) { |
Yuval Mintz | 6bf07b8 | 2013-06-02 00:06:20 +0000 | [diff] [blame] | 4185 | 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] | 4186 | num_tc, bp->max_cos); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4187 | return -EINVAL; |
| 4188 | } |
| 4189 | |
| 4190 | /* declare amount of supported traffic classes */ |
| 4191 | if (netdev_set_num_tc(dev, num_tc)) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4192 | BNX2X_ERR("failed to declare %d traffic classes\n", num_tc); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4193 | return -EINVAL; |
| 4194 | } |
| 4195 | |
| 4196 | /* configure priority to traffic class mapping */ |
| 4197 | for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) { |
| 4198 | netdev_set_prio_tc_map(dev, prio, bp->prio_to_cos[prio]); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4199 | DP(BNX2X_MSG_SP | NETIF_MSG_IFUP, |
| 4200 | "mapping priority %d to tc %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4201 | prio, bp->prio_to_cos[prio]); |
| 4202 | } |
| 4203 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 4204 | /* Use this configuration to differentiate tc0 from other COSes |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4205 | This can be used for ets or pfc, and save the effort of setting |
| 4206 | up a multio class queue disc or negotiating DCBX with a switch |
| 4207 | netdev_set_prio_tc_map(dev, 0, 0); |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 4208 | 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] | 4209 | for (prio = 1; prio < 16; prio++) { |
| 4210 | netdev_set_prio_tc_map(dev, prio, 1); |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 4211 | 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] | 4212 | } */ |
| 4213 | |
| 4214 | /* configure traffic class to transmission queue mapping */ |
| 4215 | for (cos = 0; cos < bp->max_cos; cos++) { |
| 4216 | count = BNX2X_NUM_ETH_QUEUES(bp); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4217 | offset = cos * BNX2X_NUM_NON_CNIC_QUEUES(bp); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4218 | netdev_set_tc_queue(dev, cos, count, offset); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4219 | DP(BNX2X_MSG_SP | NETIF_MSG_IFUP, |
| 4220 | "mapping tc %d to offset %d count %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4221 | cos, offset, count); |
| 4222 | } |
| 4223 | |
| 4224 | return 0; |
| 4225 | } |
| 4226 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4227 | /* called with rtnl_lock */ |
| 4228 | int bnx2x_change_mac_addr(struct net_device *dev, void *p) |
| 4229 | { |
| 4230 | struct sockaddr *addr = p; |
| 4231 | struct bnx2x *bp = netdev_priv(dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4232 | int rc = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4233 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4234 | if (!bnx2x_is_valid_ether_addr(bp, addr->sa_data)) { |
| 4235 | BNX2X_ERR("Requested MAC address is not valid\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4236 | return -EINVAL; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4237 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4238 | |
Barak Witkowski | a334872 | 2012-04-23 03:04:46 +0000 | [diff] [blame] | 4239 | if ((IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp)) && |
| 4240 | !is_zero_ether_addr(addr->sa_data)) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4241 | BNX2X_ERR("Can't configure non-zero address on iSCSI or FCoE functions in MF-SD mode\n"); |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 4242 | return -EINVAL; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4243 | } |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 4244 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4245 | if (netif_running(dev)) { |
| 4246 | rc = bnx2x_set_eth_mac(bp, false); |
| 4247 | if (rc) |
| 4248 | return rc; |
| 4249 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4250 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4251 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
| 4252 | |
| 4253 | if (netif_running(dev)) |
| 4254 | rc = bnx2x_set_eth_mac(bp, true); |
| 4255 | |
| 4256 | return rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4257 | } |
| 4258 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4259 | static void bnx2x_free_fp_mem_at(struct bnx2x *bp, int fp_index) |
| 4260 | { |
| 4261 | union host_hc_status_block *sb = &bnx2x_fp(bp, fp_index, status_blk); |
| 4262 | struct bnx2x_fastpath *fp = &bp->fp[fp_index]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4263 | u8 cos; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4264 | |
| 4265 | /* Common */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4266 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4267 | if (IS_FCOE_IDX(fp_index)) { |
| 4268 | memset(sb, 0, sizeof(union host_hc_status_block)); |
| 4269 | fp->status_blk_mapping = 0; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4270 | } else { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4271 | /* status blocks */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4272 | if (!CHIP_IS_E1x(bp)) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4273 | BNX2X_PCI_FREE(sb->e2_sb, |
| 4274 | bnx2x_fp(bp, fp_index, |
| 4275 | status_blk_mapping), |
| 4276 | sizeof(struct host_hc_status_block_e2)); |
| 4277 | else |
| 4278 | BNX2X_PCI_FREE(sb->e1x_sb, |
| 4279 | bnx2x_fp(bp, fp_index, |
| 4280 | status_blk_mapping), |
| 4281 | sizeof(struct host_hc_status_block_e1x)); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4282 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4283 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4284 | /* Rx */ |
| 4285 | if (!skip_rx_queue(bp, fp_index)) { |
| 4286 | bnx2x_free_rx_bds(fp); |
| 4287 | |
| 4288 | /* fastpath rx rings: rx_buf rx_desc rx_comp */ |
| 4289 | BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_buf_ring)); |
| 4290 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_desc_ring), |
| 4291 | bnx2x_fp(bp, fp_index, rx_desc_mapping), |
| 4292 | sizeof(struct eth_rx_bd) * NUM_RX_BD); |
| 4293 | |
| 4294 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_comp_ring), |
| 4295 | bnx2x_fp(bp, fp_index, rx_comp_mapping), |
| 4296 | sizeof(struct eth_fast_path_rx_cqe) * |
| 4297 | NUM_RCQ_BD); |
| 4298 | |
| 4299 | /* SGE ring */ |
| 4300 | BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_page_ring)); |
| 4301 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_sge_ring), |
| 4302 | bnx2x_fp(bp, fp_index, rx_sge_mapping), |
| 4303 | BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); |
| 4304 | } |
| 4305 | |
| 4306 | /* Tx */ |
| 4307 | if (!skip_tx_queue(bp, fp_index)) { |
| 4308 | /* fastpath tx rings: tx_buf tx_desc */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4309 | for_each_cos_in_tx_queue(fp, cos) { |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4310 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4311 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4312 | DP(NETIF_MSG_IFDOWN, |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 4313 | "freeing tx memory of fp %d cos %d cid %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4314 | fp_index, cos, txdata->cid); |
| 4315 | |
| 4316 | BNX2X_FREE(txdata->tx_buf_ring); |
| 4317 | BNX2X_PCI_FREE(txdata->tx_desc_ring, |
| 4318 | txdata->tx_desc_mapping, |
| 4319 | sizeof(union eth_tx_bd_types) * NUM_TX_BD); |
| 4320 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4321 | } |
| 4322 | /* end of fastpath */ |
| 4323 | } |
| 4324 | |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 4325 | static void bnx2x_free_fp_mem_cnic(struct bnx2x *bp) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4326 | { |
| 4327 | int i; |
| 4328 | for_each_cnic_queue(bp, i) |
| 4329 | bnx2x_free_fp_mem_at(bp, i); |
| 4330 | } |
| 4331 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4332 | void bnx2x_free_fp_mem(struct bnx2x *bp) |
| 4333 | { |
| 4334 | int i; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4335 | for_each_eth_queue(bp, i) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4336 | bnx2x_free_fp_mem_at(bp, i); |
| 4337 | } |
| 4338 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4339 | static void set_sb_shortcuts(struct bnx2x *bp, int index) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4340 | { |
| 4341 | 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] | 4342 | if (!CHIP_IS_E1x(bp)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4343 | bnx2x_fp(bp, index, sb_index_values) = |
| 4344 | (__le16 *)status_blk.e2_sb->sb.index_values; |
| 4345 | bnx2x_fp(bp, index, sb_running_index) = |
| 4346 | (__le16 *)status_blk.e2_sb->sb.running_index; |
| 4347 | } else { |
| 4348 | bnx2x_fp(bp, index, sb_index_values) = |
| 4349 | (__le16 *)status_blk.e1x_sb->sb.index_values; |
| 4350 | bnx2x_fp(bp, index, sb_running_index) = |
| 4351 | (__le16 *)status_blk.e1x_sb->sb.running_index; |
| 4352 | } |
| 4353 | } |
| 4354 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4355 | /* Returns the number of actually allocated BDs */ |
| 4356 | static int bnx2x_alloc_rx_bds(struct bnx2x_fastpath *fp, |
| 4357 | int rx_ring_size) |
| 4358 | { |
| 4359 | struct bnx2x *bp = fp->bp; |
| 4360 | u16 ring_prod, cqe_ring_prod; |
| 4361 | int i, failure_cnt = 0; |
| 4362 | |
| 4363 | fp->rx_comp_cons = 0; |
| 4364 | cqe_ring_prod = ring_prod = 0; |
| 4365 | |
| 4366 | /* This routine is called only during fo init so |
| 4367 | * fp->eth_q_stats.rx_skb_alloc_failed = 0 |
| 4368 | */ |
| 4369 | for (i = 0; i < rx_ring_size; i++) { |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame] | 4370 | if (bnx2x_alloc_rx_data(bp, fp, ring_prod, GFP_KERNEL) < 0) { |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4371 | failure_cnt++; |
| 4372 | continue; |
| 4373 | } |
| 4374 | ring_prod = NEXT_RX_IDX(ring_prod); |
| 4375 | cqe_ring_prod = NEXT_RCQ_IDX(cqe_ring_prod); |
| 4376 | WARN_ON(ring_prod <= (i - failure_cnt)); |
| 4377 | } |
| 4378 | |
| 4379 | if (failure_cnt) |
| 4380 | BNX2X_ERR("was only able to allocate %d rx skbs on queue[%d]\n", |
| 4381 | i - failure_cnt, fp->index); |
| 4382 | |
| 4383 | fp->rx_bd_prod = ring_prod; |
| 4384 | /* Limit the CQE producer by the CQE ring size */ |
| 4385 | fp->rx_comp_prod = min_t(u16, NUM_RCQ_RINGS*RCQ_DESC_CNT, |
| 4386 | cqe_ring_prod); |
| 4387 | fp->rx_pkt = fp->rx_calls = 0; |
| 4388 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4389 | 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] | 4390 | |
| 4391 | return i - failure_cnt; |
| 4392 | } |
| 4393 | |
| 4394 | static void bnx2x_set_next_page_rx_cq(struct bnx2x_fastpath *fp) |
| 4395 | { |
| 4396 | int i; |
| 4397 | |
| 4398 | for (i = 1; i <= NUM_RCQ_RINGS; i++) { |
| 4399 | struct eth_rx_cqe_next_page *nextpg; |
| 4400 | |
| 4401 | nextpg = (struct eth_rx_cqe_next_page *) |
| 4402 | &fp->rx_comp_ring[RCQ_DESC_CNT * i - 1]; |
| 4403 | nextpg->addr_hi = |
| 4404 | cpu_to_le32(U64_HI(fp->rx_comp_mapping + |
| 4405 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); |
| 4406 | nextpg->addr_lo = |
| 4407 | cpu_to_le32(U64_LO(fp->rx_comp_mapping + |
| 4408 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); |
| 4409 | } |
| 4410 | } |
| 4411 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4412 | static int bnx2x_alloc_fp_mem_at(struct bnx2x *bp, int index) |
| 4413 | { |
| 4414 | union host_hc_status_block *sb; |
| 4415 | struct bnx2x_fastpath *fp = &bp->fp[index]; |
| 4416 | int ring_size = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4417 | u8 cos; |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4418 | int rx_ring_size = 0; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4419 | |
Barak Witkowski | a334872 | 2012-04-23 03:04:46 +0000 | [diff] [blame] | 4420 | if (!bp->rx_ring_size && |
| 4421 | (IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp))) { |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 4422 | rx_ring_size = MIN_RX_SIZE_NONTPA; |
| 4423 | bp->rx_ring_size = rx_ring_size; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4424 | } else if (!bp->rx_ring_size) { |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4425 | rx_ring_size = MAX_RX_AVAIL/BNX2X_NUM_RX_QUEUES(bp); |
| 4426 | |
Yuval Mintz | 065f8b9 | 2012-10-03 04:22:59 +0000 | [diff] [blame] | 4427 | if (CHIP_IS_E3(bp)) { |
| 4428 | u32 cfg = SHMEM_RD(bp, |
| 4429 | dev_info.port_hw_config[BP_PORT(bp)]. |
| 4430 | default_cfg); |
| 4431 | |
| 4432 | /* Decrease ring size for 1G functions */ |
| 4433 | if ((cfg & PORT_HW_CFG_NET_SERDES_IF_MASK) == |
| 4434 | PORT_HW_CFG_NET_SERDES_IF_SGMII) |
| 4435 | rx_ring_size /= 10; |
| 4436 | } |
Mintz Yuval | d760fc3 | 2012-02-15 02:10:28 +0000 | [diff] [blame] | 4437 | |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4438 | /* allocate at least number of buffers required by FW */ |
| 4439 | rx_ring_size = max_t(int, bp->disable_tpa ? MIN_RX_SIZE_NONTPA : |
| 4440 | MIN_RX_SIZE_TPA, rx_ring_size); |
| 4441 | |
| 4442 | bp->rx_ring_size = rx_ring_size; |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 4443 | } else /* if rx_ring_size specified - use it */ |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4444 | rx_ring_size = bp->rx_ring_size; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4445 | |
Yuval Mintz | 04c4673 | 2013-01-23 03:21:46 +0000 | [diff] [blame] | 4446 | DP(BNX2X_MSG_SP, "calculated rx_ring_size %d\n", rx_ring_size); |
| 4447 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4448 | /* Common */ |
| 4449 | sb = &bnx2x_fp(bp, index, status_blk); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4450 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4451 | if (!IS_FCOE_IDX(index)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4452 | /* status blocks */ |
Joe Perches | cd2b038 | 2014-02-20 13:25:51 -0800 | [diff] [blame] | 4453 | if (!CHIP_IS_E1x(bp)) { |
| 4454 | sb->e2_sb = BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, status_blk_mapping), |
| 4455 | sizeof(struct host_hc_status_block_e2)); |
| 4456 | if (!sb->e2_sb) |
| 4457 | goto alloc_mem_err; |
| 4458 | } else { |
| 4459 | sb->e1x_sb = BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, status_blk_mapping), |
| 4460 | sizeof(struct host_hc_status_block_e1x)); |
| 4461 | if (!sb->e1x_sb) |
| 4462 | goto alloc_mem_err; |
| 4463 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4464 | } |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 4465 | |
| 4466 | /* FCoE Queue uses Default SB and doesn't ACK the SB, thus no need to |
| 4467 | * set shortcuts for it. |
| 4468 | */ |
| 4469 | if (!IS_FCOE_IDX(index)) |
| 4470 | set_sb_shortcuts(bp, index); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4471 | |
| 4472 | /* Tx */ |
| 4473 | if (!skip_tx_queue(bp, index)) { |
| 4474 | /* fastpath tx rings: tx_buf tx_desc */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4475 | for_each_cos_in_tx_queue(fp, cos) { |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4476 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4477 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4478 | DP(NETIF_MSG_IFUP, |
| 4479 | "allocating tx memory of fp %d cos %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4480 | index, cos); |
| 4481 | |
Joe Perches | cd2b038 | 2014-02-20 13:25:51 -0800 | [diff] [blame] | 4482 | txdata->tx_buf_ring = kcalloc(NUM_TX_BD, |
| 4483 | sizeof(struct sw_tx_bd), |
| 4484 | GFP_KERNEL); |
| 4485 | if (!txdata->tx_buf_ring) |
| 4486 | goto alloc_mem_err; |
| 4487 | txdata->tx_desc_ring = BNX2X_PCI_ALLOC(&txdata->tx_desc_mapping, |
| 4488 | sizeof(union eth_tx_bd_types) * NUM_TX_BD); |
| 4489 | if (!txdata->tx_desc_ring) |
| 4490 | goto alloc_mem_err; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4491 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4492 | } |
| 4493 | |
| 4494 | /* Rx */ |
| 4495 | if (!skip_rx_queue(bp, index)) { |
| 4496 | /* fastpath rx rings: rx_buf rx_desc rx_comp */ |
Joe Perches | cd2b038 | 2014-02-20 13:25:51 -0800 | [diff] [blame] | 4497 | bnx2x_fp(bp, index, rx_buf_ring) = |
| 4498 | kcalloc(NUM_RX_BD, sizeof(struct sw_rx_bd), GFP_KERNEL); |
| 4499 | if (!bnx2x_fp(bp, index, rx_buf_ring)) |
| 4500 | goto alloc_mem_err; |
| 4501 | bnx2x_fp(bp, index, rx_desc_ring) = |
| 4502 | BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, rx_desc_mapping), |
| 4503 | sizeof(struct eth_rx_bd) * NUM_RX_BD); |
| 4504 | if (!bnx2x_fp(bp, index, rx_desc_ring)) |
| 4505 | goto alloc_mem_err; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4506 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 4507 | /* Seed all CQEs by 1s */ |
Joe Perches | cd2b038 | 2014-02-20 13:25:51 -0800 | [diff] [blame] | 4508 | bnx2x_fp(bp, index, rx_comp_ring) = |
| 4509 | BNX2X_PCI_FALLOC(&bnx2x_fp(bp, index, rx_comp_mapping), |
| 4510 | sizeof(struct eth_fast_path_rx_cqe) * NUM_RCQ_BD); |
| 4511 | if (!bnx2x_fp(bp, index, rx_comp_ring)) |
| 4512 | goto alloc_mem_err; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4513 | |
| 4514 | /* SGE ring */ |
Joe Perches | cd2b038 | 2014-02-20 13:25:51 -0800 | [diff] [blame] | 4515 | bnx2x_fp(bp, index, rx_page_ring) = |
| 4516 | kcalloc(NUM_RX_SGE, sizeof(struct sw_rx_page), |
| 4517 | GFP_KERNEL); |
| 4518 | if (!bnx2x_fp(bp, index, rx_page_ring)) |
| 4519 | goto alloc_mem_err; |
| 4520 | bnx2x_fp(bp, index, rx_sge_ring) = |
| 4521 | BNX2X_PCI_ALLOC(&bnx2x_fp(bp, index, rx_sge_mapping), |
| 4522 | BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); |
| 4523 | if (!bnx2x_fp(bp, index, rx_sge_ring)) |
| 4524 | goto alloc_mem_err; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4525 | /* RX BD ring */ |
| 4526 | bnx2x_set_next_page_rx_bd(fp); |
| 4527 | |
| 4528 | /* CQ ring */ |
| 4529 | bnx2x_set_next_page_rx_cq(fp); |
| 4530 | |
| 4531 | /* BDs */ |
| 4532 | ring_size = bnx2x_alloc_rx_bds(fp, rx_ring_size); |
| 4533 | if (ring_size < rx_ring_size) |
| 4534 | goto alloc_mem_err; |
| 4535 | } |
| 4536 | |
| 4537 | return 0; |
| 4538 | |
| 4539 | /* handles low memory cases */ |
| 4540 | alloc_mem_err: |
| 4541 | BNX2X_ERR("Unable to allocate full memory for queue %d (size %d)\n", |
| 4542 | index, ring_size); |
| 4543 | /* FW will drop all packets if queue is not big enough, |
| 4544 | * In these cases we disable the queue |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4545 | * Min size is different for OOO, TPA and non-TPA queues |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4546 | */ |
| 4547 | if (ring_size < (fp->disable_tpa ? |
Dmitry Kravkov | eb722d7 | 2011-05-24 02:06:06 +0000 | [diff] [blame] | 4548 | MIN_RX_SIZE_NONTPA : MIN_RX_SIZE_TPA)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4549 | /* release memory allocated for this queue */ |
| 4550 | bnx2x_free_fp_mem_at(bp, index); |
| 4551 | return -ENOMEM; |
| 4552 | } |
| 4553 | return 0; |
| 4554 | } |
| 4555 | |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 4556 | static int bnx2x_alloc_fp_mem_cnic(struct bnx2x *bp) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4557 | { |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 4558 | if (!NO_FCOE(bp)) |
| 4559 | /* FCoE */ |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4560 | if (bnx2x_alloc_fp_mem_at(bp, FCOE_IDX(bp))) |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 4561 | /* we will fail load process instead of mark |
| 4562 | * NO_FCOE_FLAG |
| 4563 | */ |
| 4564 | return -ENOMEM; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4565 | |
| 4566 | return 0; |
| 4567 | } |
| 4568 | |
stephen hemminger | a8f47eb | 2014-01-09 22:20:11 -0800 | [diff] [blame] | 4569 | static int bnx2x_alloc_fp_mem(struct bnx2x *bp) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4570 | { |
| 4571 | int i; |
| 4572 | |
| 4573 | /* 1. Allocate FP for leading - fatal if error |
| 4574 | * 2. Allocate RSS - fix number of queues if error |
| 4575 | */ |
| 4576 | |
| 4577 | /* leading */ |
| 4578 | if (bnx2x_alloc_fp_mem_at(bp, 0)) |
| 4579 | return -ENOMEM; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4580 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4581 | /* RSS */ |
| 4582 | for_each_nondefault_eth_queue(bp, i) |
| 4583 | if (bnx2x_alloc_fp_mem_at(bp, i)) |
| 4584 | break; |
| 4585 | |
| 4586 | /* handle memory failures */ |
| 4587 | if (i != BNX2X_NUM_ETH_QUEUES(bp)) { |
| 4588 | int delta = BNX2X_NUM_ETH_QUEUES(bp) - i; |
| 4589 | |
| 4590 | WARN_ON(delta < 0); |
Yuval Mintz | 4864a16 | 2013-01-10 04:53:39 +0000 | [diff] [blame] | 4591 | bnx2x_shrink_eth_fp(bp, delta); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4592 | if (CNIC_SUPPORT(bp)) |
| 4593 | /* move non eth FPs next to last eth FP |
| 4594 | * must be done in that order |
| 4595 | * FCOE_IDX < FWD_IDX < OOO_IDX |
| 4596 | */ |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4597 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4598 | /* move FCoE fp even NO_FCOE_FLAG is on */ |
| 4599 | bnx2x_move_fp(bp, FCOE_IDX(bp), FCOE_IDX(bp) - delta); |
| 4600 | bp->num_ethernet_queues -= delta; |
| 4601 | bp->num_queues = bp->num_ethernet_queues + |
| 4602 | bp->num_cnic_queues; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4603 | BNX2X_ERR("Adjusted num of queues from %d to %d\n", |
| 4604 | bp->num_queues + delta, bp->num_queues); |
| 4605 | } |
| 4606 | |
| 4607 | return 0; |
| 4608 | } |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 4609 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4610 | void bnx2x_free_mem_bp(struct bnx2x *bp) |
| 4611 | { |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4612 | int i; |
| 4613 | |
| 4614 | for (i = 0; i < bp->fp_array_size; i++) |
| 4615 | kfree(bp->fp[i].tpa_info); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4616 | kfree(bp->fp); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4617 | kfree(bp->sp_objs); |
| 4618 | kfree(bp->fp_stats); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4619 | kfree(bp->bnx2x_txq); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4620 | kfree(bp->msix_table); |
| 4621 | kfree(bp->ilt); |
| 4622 | } |
| 4623 | |
Bill Pemberton | 0329aba | 2012-12-03 09:24:24 -0500 | [diff] [blame] | 4624 | int bnx2x_alloc_mem_bp(struct bnx2x *bp) |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4625 | { |
| 4626 | struct bnx2x_fastpath *fp; |
| 4627 | struct msix_entry *tbl; |
| 4628 | struct bnx2x_ilt *ilt; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4629 | int msix_table_size = 0; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4630 | int fp_array_size, txq_array_size; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4631 | int i; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4632 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4633 | /* |
| 4634 | * 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] | 4635 | * path IGU SBs plus default SB (for PF only). |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4636 | */ |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 4637 | msix_table_size = bp->igu_sb_cnt; |
| 4638 | if (IS_PF(bp)) |
| 4639 | msix_table_size++; |
| 4640 | BNX2X_DEV_INFO("msix_table_size %d\n", msix_table_size); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4641 | |
| 4642 | /* fp array: RSS plus CNIC related L2 queues */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4643 | fp_array_size = BNX2X_MAX_RSS_COUNT(bp) + CNIC_SUPPORT(bp); |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4644 | bp->fp_array_size = fp_array_size; |
| 4645 | BNX2X_DEV_INFO("fp_array_size %d\n", bp->fp_array_size); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4646 | |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4647 | fp = kcalloc(bp->fp_array_size, sizeof(*fp), GFP_KERNEL); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4648 | if (!fp) |
| 4649 | goto alloc_err; |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4650 | for (i = 0; i < bp->fp_array_size; i++) { |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4651 | fp[i].tpa_info = |
| 4652 | kcalloc(ETH_MAX_AGGREGATION_QUEUES_E1H_E2, |
| 4653 | sizeof(struct bnx2x_agg_info), GFP_KERNEL); |
| 4654 | if (!(fp[i].tpa_info)) |
| 4655 | goto alloc_err; |
| 4656 | } |
| 4657 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4658 | bp->fp = fp; |
| 4659 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4660 | /* allocate sp objs */ |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4661 | 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] | 4662 | GFP_KERNEL); |
| 4663 | if (!bp->sp_objs) |
| 4664 | goto alloc_err; |
| 4665 | |
| 4666 | /* allocate fp_stats */ |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4667 | 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] | 4668 | GFP_KERNEL); |
| 4669 | if (!bp->fp_stats) |
| 4670 | goto alloc_err; |
| 4671 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4672 | /* Allocate memory for the transmission queues array */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4673 | txq_array_size = |
| 4674 | BNX2X_MAX_RSS_COUNT(bp) * BNX2X_MULTI_TX_COS + CNIC_SUPPORT(bp); |
| 4675 | BNX2X_DEV_INFO("txq_array_size %d", txq_array_size); |
| 4676 | |
| 4677 | bp->bnx2x_txq = kcalloc(txq_array_size, sizeof(struct bnx2x_fp_txdata), |
| 4678 | GFP_KERNEL); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4679 | if (!bp->bnx2x_txq) |
| 4680 | goto alloc_err; |
| 4681 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4682 | /* msix table */ |
Thomas Meyer | 01e2374 | 2011-11-29 11:08:00 +0000 | [diff] [blame] | 4683 | tbl = kcalloc(msix_table_size, sizeof(*tbl), GFP_KERNEL); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4684 | if (!tbl) |
| 4685 | goto alloc_err; |
| 4686 | bp->msix_table = tbl; |
| 4687 | |
| 4688 | /* ilt */ |
| 4689 | ilt = kzalloc(sizeof(*ilt), GFP_KERNEL); |
| 4690 | if (!ilt) |
| 4691 | goto alloc_err; |
| 4692 | bp->ilt = ilt; |
| 4693 | |
| 4694 | return 0; |
| 4695 | alloc_err: |
| 4696 | bnx2x_free_mem_bp(bp); |
| 4697 | return -ENOMEM; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4698 | } |
| 4699 | |
Dmitry Kravkov | a9fccec | 2011-06-14 01:33:30 +0000 | [diff] [blame] | 4700 | int bnx2x_reload_if_running(struct net_device *dev) |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4701 | { |
| 4702 | struct bnx2x *bp = netdev_priv(dev); |
| 4703 | |
| 4704 | if (unlikely(!netif_running(dev))) |
| 4705 | return 0; |
| 4706 | |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 4707 | bnx2x_nic_unload(bp, UNLOAD_NORMAL, true); |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4708 | return bnx2x_nic_load(bp, LOAD_NORMAL); |
| 4709 | } |
| 4710 | |
Yaniv Rosner | 1ac9e42 | 2011-05-31 21:26:11 +0000 | [diff] [blame] | 4711 | int bnx2x_get_cur_phy_idx(struct bnx2x *bp) |
| 4712 | { |
| 4713 | u32 sel_phy_idx = 0; |
| 4714 | if (bp->link_params.num_phys <= 1) |
| 4715 | return INT_PHY; |
| 4716 | |
| 4717 | if (bp->link_vars.link_up) { |
| 4718 | sel_phy_idx = EXT_PHY1; |
| 4719 | /* In case link is SERDES, check if the EXT_PHY2 is the one */ |
| 4720 | if ((bp->link_vars.link_status & LINK_STATUS_SERDES_LINK) && |
| 4721 | (bp->link_params.phy[EXT_PHY2].supported & SUPPORTED_FIBRE)) |
| 4722 | sel_phy_idx = EXT_PHY2; |
| 4723 | } else { |
| 4724 | |
| 4725 | switch (bnx2x_phy_selection(&bp->link_params)) { |
| 4726 | case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT: |
| 4727 | case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY: |
| 4728 | case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY: |
| 4729 | sel_phy_idx = EXT_PHY1; |
| 4730 | break; |
| 4731 | case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY: |
| 4732 | case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY: |
| 4733 | sel_phy_idx = EXT_PHY2; |
| 4734 | break; |
| 4735 | } |
| 4736 | } |
| 4737 | |
| 4738 | return sel_phy_idx; |
Yaniv Rosner | 1ac9e42 | 2011-05-31 21:26:11 +0000 | [diff] [blame] | 4739 | } |
| 4740 | int bnx2x_get_link_cfg_idx(struct bnx2x *bp) |
| 4741 | { |
| 4742 | u32 sel_phy_idx = bnx2x_get_cur_phy_idx(bp); |
| 4743 | /* |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 4744 | * The selected activated PHY is always after swapping (in case PHY |
Yaniv Rosner | 1ac9e42 | 2011-05-31 21:26:11 +0000 | [diff] [blame] | 4745 | * swapping is enabled). So when swapping is enabled, we need to reverse |
| 4746 | * the configuration |
| 4747 | */ |
| 4748 | |
| 4749 | if (bp->link_params.multi_phy_config & |
| 4750 | PORT_HW_CFG_PHY_SWAPPED_ENABLED) { |
| 4751 | if (sel_phy_idx == EXT_PHY1) |
| 4752 | sel_phy_idx = EXT_PHY2; |
| 4753 | else if (sel_phy_idx == EXT_PHY2) |
| 4754 | sel_phy_idx = EXT_PHY1; |
| 4755 | } |
| 4756 | return LINK_CONFIG_IDX(sel_phy_idx); |
| 4757 | } |
| 4758 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4759 | #ifdef NETDEV_FCOE_WWNN |
Vladislav Zolotarov | bf61ee1 | 2011-07-21 07:56:51 +0000 | [diff] [blame] | 4760 | int bnx2x_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type) |
| 4761 | { |
| 4762 | struct bnx2x *bp = netdev_priv(dev); |
| 4763 | struct cnic_eth_dev *cp = &bp->cnic_eth_dev; |
| 4764 | |
| 4765 | switch (type) { |
| 4766 | case NETDEV_FCOE_WWNN: |
| 4767 | *wwn = HILO_U64(cp->fcoe_wwn_node_name_hi, |
| 4768 | cp->fcoe_wwn_node_name_lo); |
| 4769 | break; |
| 4770 | case NETDEV_FCOE_WWPN: |
| 4771 | *wwn = HILO_U64(cp->fcoe_wwn_port_name_hi, |
| 4772 | cp->fcoe_wwn_port_name_lo); |
| 4773 | break; |
| 4774 | default: |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4775 | BNX2X_ERR("Wrong WWN type requested - %d\n", type); |
Vladislav Zolotarov | bf61ee1 | 2011-07-21 07:56:51 +0000 | [diff] [blame] | 4776 | return -EINVAL; |
| 4777 | } |
| 4778 | |
| 4779 | return 0; |
| 4780 | } |
| 4781 | #endif |
| 4782 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4783 | /* called with rtnl_lock */ |
| 4784 | int bnx2x_change_mtu(struct net_device *dev, int new_mtu) |
| 4785 | { |
| 4786 | struct bnx2x *bp = netdev_priv(dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4787 | |
| 4788 | if (bp->recovery_state != BNX2X_RECOVERY_DONE) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4789 | BNX2X_ERR("Can't perform change MTU during parity recovery\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4790 | return -EAGAIN; |
| 4791 | } |
| 4792 | |
| 4793 | if ((new_mtu > ETH_MAX_JUMBO_PACKET_SIZE) || |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4794 | ((new_mtu + ETH_HLEN) < ETH_MIN_PACKET_SIZE)) { |
| 4795 | BNX2X_ERR("Can't support requested MTU size\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4796 | return -EINVAL; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4797 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4798 | |
| 4799 | /* This does not race with packet allocation |
| 4800 | * because the actual alloc size is |
| 4801 | * only updated as part of load |
| 4802 | */ |
| 4803 | dev->mtu = new_mtu; |
| 4804 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4805 | return bnx2x_reload_if_running(dev); |
| 4806 | } |
| 4807 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 4808 | netdev_features_t bnx2x_fix_features(struct net_device *dev, |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4809 | netdev_features_t features) |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4810 | { |
| 4811 | struct bnx2x *bp = netdev_priv(dev); |
| 4812 | |
| 4813 | /* TPA requires Rx CSUM offloading */ |
Dmitry Kravkov | aebf624 | 2014-08-25 17:48:32 +0300 | [diff] [blame] | 4814 | if (!(features & NETIF_F_RXCSUM)) { |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4815 | features &= ~NETIF_F_LRO; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4816 | features &= ~NETIF_F_GRO; |
| 4817 | } |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4818 | |
Dmitry Kravkov | aebf624 | 2014-08-25 17:48:32 +0300 | [diff] [blame] | 4819 | /* Note: do not disable SW GRO in kernel when HW GRO is off */ |
| 4820 | if (bp->disable_tpa) |
| 4821 | features &= ~NETIF_F_LRO; |
| 4822 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4823 | return features; |
| 4824 | } |
| 4825 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 4826 | int bnx2x_set_features(struct net_device *dev, netdev_features_t features) |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4827 | { |
| 4828 | struct bnx2x *bp = netdev_priv(dev); |
| 4829 | u32 flags = bp->flags; |
Eric Dumazet | 8802f57 | 2013-05-18 07:14:53 +0000 | [diff] [blame] | 4830 | u32 changes; |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4831 | bool bnx2x_reload = false; |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4832 | |
| 4833 | if (features & NETIF_F_LRO) |
| 4834 | flags |= TPA_ENABLE_FLAG; |
| 4835 | else |
| 4836 | flags &= ~TPA_ENABLE_FLAG; |
| 4837 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4838 | if (features & NETIF_F_GRO) |
| 4839 | flags |= GRO_ENABLE_FLAG; |
| 4840 | else |
| 4841 | flags &= ~GRO_ENABLE_FLAG; |
| 4842 | |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4843 | if (features & NETIF_F_LOOPBACK) { |
| 4844 | if (bp->link_params.loopback_mode != LOOPBACK_BMAC) { |
| 4845 | bp->link_params.loopback_mode = LOOPBACK_BMAC; |
| 4846 | bnx2x_reload = true; |
| 4847 | } |
| 4848 | } else { |
| 4849 | if (bp->link_params.loopback_mode != LOOPBACK_NONE) { |
| 4850 | bp->link_params.loopback_mode = LOOPBACK_NONE; |
| 4851 | bnx2x_reload = true; |
| 4852 | } |
| 4853 | } |
| 4854 | |
Eric Dumazet | 8802f57 | 2013-05-18 07:14:53 +0000 | [diff] [blame] | 4855 | changes = flags ^ bp->flags; |
| 4856 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 4857 | /* if GRO is changed while LRO is enabled, don't force a reload */ |
Eric Dumazet | 8802f57 | 2013-05-18 07:14:53 +0000 | [diff] [blame] | 4858 | if ((changes & GRO_ENABLE_FLAG) && (flags & TPA_ENABLE_FLAG)) |
| 4859 | changes &= ~GRO_ENABLE_FLAG; |
| 4860 | |
Dmitry Kravkov | aebf624 | 2014-08-25 17:48:32 +0300 | [diff] [blame] | 4861 | /* if GRO is changed while HW TPA is off, don't force a reload */ |
| 4862 | if ((changes & GRO_ENABLE_FLAG) && bp->disable_tpa) |
| 4863 | changes &= ~GRO_ENABLE_FLAG; |
| 4864 | |
Eric Dumazet | 8802f57 | 2013-05-18 07:14:53 +0000 | [diff] [blame] | 4865 | if (changes) |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4866 | bnx2x_reload = true; |
Eric Dumazet | 8802f57 | 2013-05-18 07:14:53 +0000 | [diff] [blame] | 4867 | |
| 4868 | bp->flags = flags; |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4869 | |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4870 | if (bnx2x_reload) { |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4871 | if (bp->recovery_state == BNX2X_RECOVERY_DONE) |
| 4872 | return bnx2x_reload_if_running(dev); |
| 4873 | /* else: bnx2x_nic_load() will be called at end of recovery */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4874 | } |
| 4875 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4876 | return 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4877 | } |
| 4878 | |
| 4879 | void bnx2x_tx_timeout(struct net_device *dev) |
| 4880 | { |
| 4881 | struct bnx2x *bp = netdev_priv(dev); |
| 4882 | |
| 4883 | #ifdef BNX2X_STOP_ON_ERROR |
| 4884 | if (!bp->panic) |
| 4885 | bnx2x_panic(); |
| 4886 | #endif |
Ariel Elior | 7be08a7 | 2011-07-14 08:31:19 +0000 | [diff] [blame] | 4887 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4888 | /* This allows the netif to be shutdown gracefully before resetting */ |
Yuval Mintz | 230bb0f | 2014-02-12 18:19:56 +0200 | [diff] [blame] | 4889 | bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_TX_TIMEOUT, 0); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4890 | } |
| 4891 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4892 | int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state) |
| 4893 | { |
| 4894 | struct net_device *dev = pci_get_drvdata(pdev); |
| 4895 | struct bnx2x *bp; |
| 4896 | |
| 4897 | if (!dev) { |
| 4898 | dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n"); |
| 4899 | return -ENODEV; |
| 4900 | } |
| 4901 | bp = netdev_priv(dev); |
| 4902 | |
| 4903 | rtnl_lock(); |
| 4904 | |
| 4905 | pci_save_state(pdev); |
| 4906 | |
| 4907 | if (!netif_running(dev)) { |
| 4908 | rtnl_unlock(); |
| 4909 | return 0; |
| 4910 | } |
| 4911 | |
| 4912 | netif_device_detach(dev); |
| 4913 | |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 4914 | bnx2x_nic_unload(bp, UNLOAD_CLOSE, false); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4915 | |
| 4916 | bnx2x_set_power_state(bp, pci_choose_state(pdev, state)); |
| 4917 | |
| 4918 | rtnl_unlock(); |
| 4919 | |
| 4920 | return 0; |
| 4921 | } |
| 4922 | |
| 4923 | int bnx2x_resume(struct pci_dev *pdev) |
| 4924 | { |
| 4925 | struct net_device *dev = pci_get_drvdata(pdev); |
| 4926 | struct bnx2x *bp; |
| 4927 | int rc; |
| 4928 | |
| 4929 | if (!dev) { |
| 4930 | dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n"); |
| 4931 | return -ENODEV; |
| 4932 | } |
| 4933 | bp = netdev_priv(dev); |
| 4934 | |
| 4935 | if (bp->recovery_state != BNX2X_RECOVERY_DONE) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4936 | BNX2X_ERR("Handling parity error recovery. Try again later\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4937 | return -EAGAIN; |
| 4938 | } |
| 4939 | |
| 4940 | rtnl_lock(); |
| 4941 | |
| 4942 | pci_restore_state(pdev); |
| 4943 | |
| 4944 | if (!netif_running(dev)) { |
| 4945 | rtnl_unlock(); |
| 4946 | return 0; |
| 4947 | } |
| 4948 | |
| 4949 | bnx2x_set_power_state(bp, PCI_D0); |
| 4950 | netif_device_attach(dev); |
| 4951 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4952 | rc = bnx2x_nic_load(bp, LOAD_OPEN); |
| 4953 | |
| 4954 | rtnl_unlock(); |
| 4955 | |
| 4956 | return rc; |
| 4957 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4958 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4959 | void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt, |
| 4960 | u32 cid) |
| 4961 | { |
Ariel Elior | b9871bc | 2013-09-04 14:09:21 +0300 | [diff] [blame] | 4962 | if (!cxt) { |
| 4963 | BNX2X_ERR("bad context pointer %p\n", cxt); |
| 4964 | return; |
| 4965 | } |
| 4966 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4967 | /* ustorm cxt validation */ |
| 4968 | cxt->ustorm_ag_context.cdu_usage = |
| 4969 | CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), |
| 4970 | CDU_REGION_NUMBER_UCM_AG, ETH_CONNECTION_TYPE); |
| 4971 | /* xcontext validation */ |
| 4972 | cxt->xstorm_ag_context.cdu_reserved = |
| 4973 | CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), |
| 4974 | CDU_REGION_NUMBER_XCM_AG, ETH_CONNECTION_TYPE); |
| 4975 | } |
| 4976 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4977 | static void storm_memset_hc_timeout(struct bnx2x *bp, u8 port, |
| 4978 | u8 fw_sb_id, u8 sb_index, |
| 4979 | u8 ticks) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4980 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4981 | u32 addr = BAR_CSTRORM_INTMEM + |
| 4982 | CSTORM_STATUS_BLOCK_DATA_TIMEOUT_OFFSET(fw_sb_id, sb_index); |
| 4983 | REG_WR8(bp, addr, ticks); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4984 | DP(NETIF_MSG_IFUP, |
| 4985 | "port %x fw_sb_id %d sb_index %d ticks %d\n", |
| 4986 | port, fw_sb_id, sb_index, ticks); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4987 | } |
| 4988 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4989 | static void storm_memset_hc_disable(struct bnx2x *bp, u8 port, |
| 4990 | u16 fw_sb_id, u8 sb_index, |
| 4991 | u8 disable) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4992 | { |
| 4993 | u32 enable_flag = disable ? 0 : (1 << HC_INDEX_DATA_HC_ENABLED_SHIFT); |
| 4994 | u32 addr = BAR_CSTRORM_INTMEM + |
| 4995 | CSTORM_STATUS_BLOCK_DATA_FLAGS_OFFSET(fw_sb_id, sb_index); |
Ariel Elior | 0c14e5c | 2013-04-17 22:49:06 +0000 | [diff] [blame] | 4996 | u8 flags = REG_RD8(bp, addr); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4997 | /* clear and set */ |
| 4998 | flags &= ~HC_INDEX_DATA_HC_ENABLED; |
| 4999 | flags |= enable_flag; |
Ariel Elior | 0c14e5c | 2013-04-17 22:49:06 +0000 | [diff] [blame] | 5000 | REG_WR8(bp, addr, flags); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 5001 | DP(NETIF_MSG_IFUP, |
| 5002 | "port %x fw_sb_id %d sb_index %d disable %d\n", |
| 5003 | port, fw_sb_id, sb_index, disable); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 5004 | } |
| 5005 | |
| 5006 | void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id, |
| 5007 | u8 sb_index, u8 disable, u16 usec) |
| 5008 | { |
| 5009 | int port = BP_PORT(bp); |
| 5010 | u8 ticks = usec / BNX2X_BTR; |
| 5011 | |
| 5012 | storm_memset_hc_timeout(bp, port, fw_sb_id, sb_index, ticks); |
| 5013 | |
| 5014 | disable = disable ? 1 : (usec ? 0 : 1); |
| 5015 | storm_memset_hc_disable(bp, port, fw_sb_id, sb_index, disable); |
| 5016 | } |
Yuval Mintz | 230bb0f | 2014-02-12 18:19:56 +0200 | [diff] [blame] | 5017 | |
| 5018 | void bnx2x_schedule_sp_rtnl(struct bnx2x *bp, enum sp_rtnl_flag flag, |
| 5019 | u32 verbose) |
| 5020 | { |
Peter Zijlstra | 4e857c5 | 2014-03-17 18:06:10 +0100 | [diff] [blame] | 5021 | smp_mb__before_atomic(); |
Yuval Mintz | 230bb0f | 2014-02-12 18:19:56 +0200 | [diff] [blame] | 5022 | set_bit(flag, &bp->sp_rtnl_state); |
Peter Zijlstra | 4e857c5 | 2014-03-17 18:06:10 +0100 | [diff] [blame] | 5023 | smp_mb__after_atomic(); |
Yuval Mintz | 230bb0f | 2014-02-12 18:19:56 +0200 | [diff] [blame] | 5024 | DP((BNX2X_MSG_SP | verbose), "Scheduling sp_rtnl task [Flag: %d]\n", |
| 5025 | flag); |
| 5026 | schedule_delayed_work(&bp->sp_rtnl_task, 0); |
| 5027 | } |
| 5028 | EXPORT_SYMBOL(bnx2x_schedule_sp_rtnl); |