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 | * |
| 9 | * Maintained by: Eilon Greenstein <eilong@broadcom.com> |
| 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> |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 24 | #include <net/tcp.h> |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 25 | #include <net/ipv6.h> |
Stephen Rothwell | 7f3e01f | 2010-07-28 22:20:34 -0700 | [diff] [blame] | 26 | #include <net/ip6_checksum.h> |
Eliezer Tamir | 076bb0c | 2013-07-10 17:13:17 +0300 | [diff] [blame] | 27 | #include <net/busy_poll.h> |
Paul Gortmaker | c0cba59 | 2011-05-22 11:02:08 +0000 | [diff] [blame] | 28 | #include <linux/prefetch.h> |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 29 | #include "bnx2x_cmn.h" |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 30 | #include "bnx2x_init.h" |
Vladislav Zolotarov | 042181f | 2011-06-14 01:33:39 +0000 | [diff] [blame] | 31 | #include "bnx2x_sp.h" |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 32 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 33 | /** |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 34 | * bnx2x_move_fp - move content of the fastpath structure. |
| 35 | * |
| 36 | * @bp: driver handle |
| 37 | * @from: source FP index |
| 38 | * @to: destination FP index |
| 39 | * |
| 40 | * Makes sure the contents of the bp->fp[to].napi is kept |
Ariel Elior | 7275408 | 2011-11-13 04:34:31 +0000 | [diff] [blame] | 41 | * intact. This is done by first copying the napi struct from |
| 42 | * the target to the source, and then mem copying the entire |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 43 | * source onto the target. Update txdata pointers and related |
| 44 | * content. |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 45 | */ |
| 46 | static inline void bnx2x_move_fp(struct bnx2x *bp, int from, int to) |
| 47 | { |
| 48 | struct bnx2x_fastpath *from_fp = &bp->fp[from]; |
| 49 | struct bnx2x_fastpath *to_fp = &bp->fp[to]; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 50 | struct bnx2x_sp_objs *from_sp_objs = &bp->sp_objs[from]; |
| 51 | struct bnx2x_sp_objs *to_sp_objs = &bp->sp_objs[to]; |
| 52 | struct bnx2x_fp_stats *from_fp_stats = &bp->fp_stats[from]; |
| 53 | struct bnx2x_fp_stats *to_fp_stats = &bp->fp_stats[to]; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 54 | int old_max_eth_txqs, new_max_eth_txqs; |
| 55 | int old_txdata_index = 0, new_txdata_index = 0; |
Yuval Mintz | 34d5626 | 2013-08-28 01:13:01 +0300 | [diff] [blame] | 56 | struct bnx2x_agg_info *old_tpa_info = to_fp->tpa_info; |
Ariel Elior | 7275408 | 2011-11-13 04:34:31 +0000 | [diff] [blame] | 57 | |
| 58 | /* Copy the NAPI object as it has been already initialized */ |
| 59 | from_fp->napi = to_fp->napi; |
| 60 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 61 | /* Move bnx2x_fastpath contents */ |
| 62 | memcpy(to_fp, from_fp, sizeof(*to_fp)); |
| 63 | to_fp->index = to; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 64 | |
Yuval Mintz | 34d5626 | 2013-08-28 01:13:01 +0300 | [diff] [blame] | 65 | /* Retain the tpa_info of the original `to' version as we don't want |
| 66 | * 2 FPs to contain the same tpa_info pointer. |
| 67 | */ |
| 68 | to_fp->tpa_info = old_tpa_info; |
| 69 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 70 | /* move sp_objs contents as well, as their indices match fp ones */ |
| 71 | memcpy(to_sp_objs, from_sp_objs, sizeof(*to_sp_objs)); |
| 72 | |
| 73 | /* move fp_stats contents as well, as their indices match fp ones */ |
| 74 | memcpy(to_fp_stats, from_fp_stats, sizeof(*to_fp_stats)); |
| 75 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 76 | /* Update txdata pointers in fp and move txdata content accordingly: |
| 77 | * Each fp consumes 'max_cos' txdata structures, so the index should be |
| 78 | * decremented by max_cos x delta. |
| 79 | */ |
| 80 | |
| 81 | old_max_eth_txqs = BNX2X_NUM_ETH_QUEUES(bp) * (bp)->max_cos; |
| 82 | new_max_eth_txqs = (BNX2X_NUM_ETH_QUEUES(bp) - from + to) * |
| 83 | (bp)->max_cos; |
| 84 | if (from == FCOE_IDX(bp)) { |
| 85 | old_txdata_index = old_max_eth_txqs + FCOE_TXQ_IDX_OFFSET; |
| 86 | new_txdata_index = new_max_eth_txqs + FCOE_TXQ_IDX_OFFSET; |
| 87 | } |
| 88 | |
Yuval Mintz | 4864a16 | 2013-01-10 04:53:39 +0000 | [diff] [blame] | 89 | memcpy(&bp->bnx2x_txq[new_txdata_index], |
| 90 | &bp->bnx2x_txq[old_txdata_index], |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 91 | sizeof(struct bnx2x_fp_txdata)); |
| 92 | to_fp->txdata_ptr[0] = &bp->bnx2x_txq[new_txdata_index]; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 93 | } |
| 94 | |
Ariel Elior | 8ca5e17 | 2013-01-01 05:22:34 +0000 | [diff] [blame] | 95 | /** |
| 96 | * bnx2x_fill_fw_str - Fill buffer with FW version string. |
| 97 | * |
| 98 | * @bp: driver handle |
| 99 | * @buf: character buffer to fill with the fw name |
| 100 | * @buf_len: length of the above buffer |
| 101 | * |
| 102 | */ |
| 103 | void bnx2x_fill_fw_str(struct bnx2x *bp, char *buf, size_t buf_len) |
| 104 | { |
| 105 | if (IS_PF(bp)) { |
| 106 | u8 phy_fw_ver[PHY_FW_VER_LEN]; |
| 107 | |
| 108 | phy_fw_ver[0] = '\0'; |
| 109 | bnx2x_get_ext_phy_fw_version(&bp->link_params, |
| 110 | phy_fw_ver, PHY_FW_VER_LEN); |
| 111 | strlcpy(buf, bp->fw_ver, buf_len); |
| 112 | snprintf(buf + strlen(bp->fw_ver), 32 - strlen(bp->fw_ver), |
| 113 | "bc %d.%d.%d%s%s", |
| 114 | (bp->common.bc_ver & 0xff0000) >> 16, |
| 115 | (bp->common.bc_ver & 0xff00) >> 8, |
| 116 | (bp->common.bc_ver & 0xff), |
| 117 | ((phy_fw_ver[0] != '\0') ? " phy " : ""), phy_fw_ver); |
| 118 | } else { |
Ariel Elior | 6411280 | 2013-01-07 00:50:23 +0000 | [diff] [blame] | 119 | bnx2x_vf_fill_fw_str(bp, buf, buf_len); |
Ariel Elior | 8ca5e17 | 2013-01-01 05:22:34 +0000 | [diff] [blame] | 120 | } |
| 121 | } |
| 122 | |
David S. Miller | 4b87f92 | 2013-01-15 15:05:59 -0500 | [diff] [blame] | 123 | /** |
Yuval Mintz | 4864a16 | 2013-01-10 04:53:39 +0000 | [diff] [blame] | 124 | * bnx2x_shrink_eth_fp - guarantees fastpath structures stay intact |
| 125 | * |
| 126 | * @bp: driver handle |
| 127 | * @delta: number of eth queues which were not allocated |
| 128 | */ |
| 129 | static void bnx2x_shrink_eth_fp(struct bnx2x *bp, int delta) |
| 130 | { |
| 131 | int i, cos, old_eth_num = BNX2X_NUM_ETH_QUEUES(bp); |
| 132 | |
| 133 | /* 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] | 134 | * backward along the array could cause memory to be overridden |
Yuval Mintz | 4864a16 | 2013-01-10 04:53:39 +0000 | [diff] [blame] | 135 | */ |
| 136 | for (cos = 1; cos < bp->max_cos; cos++) { |
| 137 | for (i = 0; i < old_eth_num - delta; i++) { |
| 138 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
| 139 | int new_idx = cos * (old_eth_num - delta) + i; |
| 140 | |
| 141 | memcpy(&bp->bnx2x_txq[new_idx], fp->txdata_ptr[cos], |
| 142 | sizeof(struct bnx2x_fp_txdata)); |
| 143 | fp->txdata_ptr[cos] = &bp->bnx2x_txq[new_idx]; |
| 144 | } |
| 145 | } |
| 146 | } |
| 147 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 148 | int load_count[2][3] = { {0} }; /* per-path: 0-common, 1-port0, 2-port1 */ |
| 149 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 150 | /* free skb in the packet ring at pos idx |
| 151 | * return idx of last bd freed |
| 152 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 153 | 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] | 154 | u16 idx, unsigned int *pkts_compl, |
| 155 | unsigned int *bytes_compl) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 156 | { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 157 | struct sw_tx_bd *tx_buf = &txdata->tx_buf_ring[idx]; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 158 | struct eth_tx_start_bd *tx_start_bd; |
| 159 | struct eth_tx_bd *tx_data_bd; |
| 160 | struct sk_buff *skb = tx_buf->skb; |
| 161 | u16 bd_idx = TX_BD(tx_buf->first_bd), new_cons; |
| 162 | int nbd; |
| 163 | |
| 164 | /* prefetch skb end pointer to speedup dev_kfree_skb() */ |
| 165 | prefetch(&skb->end); |
| 166 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 167 | 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] | 168 | txdata->txq_index, idx, tx_buf, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 169 | |
| 170 | /* unmap first bd */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 171 | tx_start_bd = &txdata->tx_desc_ring[bd_idx].start_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 172 | dma_unmap_single(&bp->pdev->dev, BD_UNMAP_ADDR(tx_start_bd), |
Dmitry Kravkov | 4bca60f | 2010-10-06 03:30:27 +0000 | [diff] [blame] | 173 | BD_UNMAP_LEN(tx_start_bd), DMA_TO_DEVICE); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 174 | |
| 175 | nbd = le16_to_cpu(tx_start_bd->nbd) - 1; |
| 176 | #ifdef BNX2X_STOP_ON_ERROR |
| 177 | if ((nbd - 1) > (MAX_SKB_FRAGS + 2)) { |
| 178 | BNX2X_ERR("BAD nbd!\n"); |
| 179 | bnx2x_panic(); |
| 180 | } |
| 181 | #endif |
| 182 | new_cons = nbd + tx_buf->first_bd; |
| 183 | |
| 184 | /* Get the next bd */ |
| 185 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 186 | |
| 187 | /* Skip a parse bd... */ |
| 188 | --nbd; |
| 189 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 190 | |
| 191 | /* ...and the TSO split header bd since they have no mapping */ |
| 192 | if (tx_buf->flags & BNX2X_TSO_SPLIT_BD) { |
| 193 | --nbd; |
| 194 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 195 | } |
| 196 | |
| 197 | /* now free frags */ |
| 198 | while (nbd > 0) { |
| 199 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 200 | tx_data_bd = &txdata->tx_desc_ring[bd_idx].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 201 | dma_unmap_page(&bp->pdev->dev, BD_UNMAP_ADDR(tx_data_bd), |
| 202 | BD_UNMAP_LEN(tx_data_bd), DMA_TO_DEVICE); |
| 203 | if (--nbd) |
| 204 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 205 | } |
| 206 | |
| 207 | /* release skb */ |
| 208 | WARN_ON(!skb); |
Yuval Mintz | d8290ae | 2012-03-18 10:33:37 +0000 | [diff] [blame] | 209 | if (likely(skb)) { |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 210 | (*pkts_compl)++; |
| 211 | (*bytes_compl) += skb->len; |
| 212 | } |
Yuval Mintz | d8290ae | 2012-03-18 10:33:37 +0000 | [diff] [blame] | 213 | |
Vladislav Zolotarov | 4095553 | 2011-05-22 10:06:58 +0000 | [diff] [blame] | 214 | dev_kfree_skb_any(skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 215 | tx_buf->first_bd = 0; |
| 216 | tx_buf->skb = NULL; |
| 217 | |
| 218 | return new_cons; |
| 219 | } |
| 220 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 221 | int bnx2x_tx_int(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 222 | { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 223 | struct netdev_queue *txq; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 224 | u16 hw_cons, sw_cons, bd_cons = txdata->tx_bd_cons; |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 225 | unsigned int pkts_compl = 0, bytes_compl = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 226 | |
| 227 | #ifdef BNX2X_STOP_ON_ERROR |
| 228 | if (unlikely(bp->panic)) |
| 229 | return -1; |
| 230 | #endif |
| 231 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 232 | txq = netdev_get_tx_queue(bp->dev, txdata->txq_index); |
| 233 | hw_cons = le16_to_cpu(*txdata->tx_cons_sb); |
| 234 | sw_cons = txdata->tx_pkt_cons; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 235 | |
| 236 | while (sw_cons != hw_cons) { |
| 237 | u16 pkt_cons; |
| 238 | |
| 239 | pkt_cons = TX_BD(sw_cons); |
| 240 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 241 | DP(NETIF_MSG_TX_DONE, |
| 242 | "queue[%d]: hw_cons %u sw_cons %u pkt_cons %u\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 243 | txdata->txq_index, hw_cons, sw_cons, pkt_cons); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 244 | |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 245 | bd_cons = bnx2x_free_tx_pkt(bp, txdata, pkt_cons, |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 246 | &pkts_compl, &bytes_compl); |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 247 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 248 | sw_cons++; |
| 249 | } |
| 250 | |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 251 | netdev_tx_completed_queue(txq, pkts_compl, bytes_compl); |
| 252 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 253 | txdata->tx_pkt_cons = sw_cons; |
| 254 | txdata->tx_bd_cons = bd_cons; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 255 | |
| 256 | /* Need to make the tx_bd_cons update visible to start_xmit() |
| 257 | * before checking for netif_tx_queue_stopped(). Without the |
| 258 | * memory barrier, there is a small possibility that |
| 259 | * start_xmit() will miss it and cause the queue to be stopped |
| 260 | * forever. |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 261 | * On the other hand we need an rmb() here to ensure the proper |
| 262 | * ordering of bit testing in the following |
| 263 | * netif_tx_queue_stopped(txq) call. |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 264 | */ |
| 265 | smp_mb(); |
| 266 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 267 | if (unlikely(netif_tx_queue_stopped(txq))) { |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 268 | /* Taking tx_lock() is needed to prevent re-enabling the queue |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 269 | * while it's empty. This could have happen if rx_action() gets |
| 270 | * suspended in bnx2x_tx_int() after the condition before |
| 271 | * netif_tx_wake_queue(), while tx_action (bnx2x_start_xmit()): |
| 272 | * |
| 273 | * stops the queue->sees fresh tx_bd_cons->releases the queue-> |
| 274 | * sends some packets consuming the whole queue again-> |
| 275 | * stops the queue |
| 276 | */ |
| 277 | |
| 278 | __netif_tx_lock(txq, smp_processor_id()); |
| 279 | |
| 280 | if ((netif_tx_queue_stopped(txq)) && |
| 281 | (bp->state == BNX2X_STATE_OPEN) && |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 282 | (bnx2x_tx_avail(bp, txdata) >= MAX_DESC_PER_TX_PKT)) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 283 | netif_tx_wake_queue(txq); |
| 284 | |
| 285 | __netif_tx_unlock(txq); |
| 286 | } |
| 287 | return 0; |
| 288 | } |
| 289 | |
| 290 | static inline void bnx2x_update_last_max_sge(struct bnx2x_fastpath *fp, |
| 291 | u16 idx) |
| 292 | { |
| 293 | u16 last_max = fp->last_max_sge; |
| 294 | |
| 295 | if (SUB_S16(idx, last_max) > 0) |
| 296 | fp->last_max_sge = idx; |
| 297 | } |
| 298 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 299 | static inline void bnx2x_update_sge_prod(struct bnx2x_fastpath *fp, |
| 300 | u16 sge_len, |
| 301 | struct eth_end_agg_rx_cqe *cqe) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 302 | { |
| 303 | struct bnx2x *bp = fp->bp; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 304 | u16 last_max, last_elem, first_elem; |
| 305 | u16 delta = 0; |
| 306 | u16 i; |
| 307 | |
| 308 | if (!sge_len) |
| 309 | return; |
| 310 | |
| 311 | /* First mark all used pages */ |
| 312 | for (i = 0; i < sge_len; i++) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 313 | BIT_VEC64_CLEAR_BIT(fp->sge_mask, |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 314 | RX_SGE(le16_to_cpu(cqe->sgl_or_raw_data.sgl[i]))); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 315 | |
| 316 | DP(NETIF_MSG_RX_STATUS, "fp_cqe->sgl[%d] = %d\n", |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 317 | 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] | 318 | |
| 319 | /* Here we assume that the last SGE index is the biggest */ |
| 320 | prefetch((void *)(fp->sge_mask)); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 321 | bnx2x_update_last_max_sge(fp, |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 322 | le16_to_cpu(cqe->sgl_or_raw_data.sgl[sge_len - 1])); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 323 | |
| 324 | last_max = RX_SGE(fp->last_max_sge); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 325 | last_elem = last_max >> BIT_VEC64_ELEM_SHIFT; |
| 326 | first_elem = RX_SGE(fp->rx_sge_prod) >> BIT_VEC64_ELEM_SHIFT; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 327 | |
| 328 | /* If ring is not full */ |
| 329 | if (last_elem + 1 != first_elem) |
| 330 | last_elem++; |
| 331 | |
| 332 | /* Now update the prod */ |
| 333 | for (i = first_elem; i != last_elem; i = NEXT_SGE_MASK_ELEM(i)) { |
| 334 | if (likely(fp->sge_mask[i])) |
| 335 | break; |
| 336 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 337 | fp->sge_mask[i] = BIT_VEC64_ELEM_ONE_MASK; |
| 338 | delta += BIT_VEC64_ELEM_SZ; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 339 | } |
| 340 | |
| 341 | if (delta > 0) { |
| 342 | fp->rx_sge_prod += delta; |
| 343 | /* clear page-end entries */ |
| 344 | bnx2x_clear_sge_mask_next_elems(fp); |
| 345 | } |
| 346 | |
| 347 | DP(NETIF_MSG_RX_STATUS, |
| 348 | "fp->last_max_sge = %d fp->rx_sge_prod = %d\n", |
| 349 | fp->last_max_sge, fp->rx_sge_prod); |
| 350 | } |
| 351 | |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 352 | /* Get Toeplitz hash value in the skb using the value from the |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 353 | * CQE (calculated by HW). |
| 354 | */ |
| 355 | static u32 bnx2x_get_rxhash(const struct bnx2x *bp, |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 356 | const struct eth_fast_path_rx_cqe *cqe, |
| 357 | bool *l4_rxhash) |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 358 | { |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 359 | /* Get Toeplitz hash from CQE */ |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 360 | if ((bp->dev->features & NETIF_F_RXHASH) && |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 361 | (cqe->status_flags & ETH_FAST_PATH_RX_CQE_RSS_HASH_FLG)) { |
| 362 | enum eth_rss_hash_type htype; |
| 363 | |
| 364 | htype = cqe->status_flags & ETH_FAST_PATH_RX_CQE_RSS_HASH_TYPE; |
| 365 | *l4_rxhash = (htype == TCP_IPV4_HASH_TYPE) || |
| 366 | (htype == TCP_IPV6_HASH_TYPE); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 367 | return le32_to_cpu(cqe->rss_hash_result); |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 368 | } |
| 369 | *l4_rxhash = false; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 370 | return 0; |
| 371 | } |
| 372 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 373 | static void bnx2x_tpa_start(struct bnx2x_fastpath *fp, u16 queue, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 374 | u16 cons, u16 prod, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 375 | struct eth_fast_path_rx_cqe *cqe) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 376 | { |
| 377 | struct bnx2x *bp = fp->bp; |
| 378 | struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons]; |
| 379 | struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod]; |
| 380 | struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod]; |
| 381 | dma_addr_t mapping; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 382 | struct bnx2x_agg_info *tpa_info = &fp->tpa_info[queue]; |
| 383 | struct sw_rx_bd *first_buf = &tpa_info->first_buf; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 384 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 385 | /* print error if current state != stop */ |
| 386 | if (tpa_info->tpa_state != BNX2X_TPA_STOP) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 387 | BNX2X_ERR("start of bin not in stop [%d]\n", queue); |
| 388 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 389 | /* Try to map an empty data buffer from the aggregation info */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 390 | mapping = dma_map_single(&bp->pdev->dev, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 391 | first_buf->data + NET_SKB_PAD, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 392 | fp->rx_buf_size, DMA_FROM_DEVICE); |
| 393 | /* |
| 394 | * ...if it fails - move the skb from the consumer to the producer |
| 395 | * and set the current aggregation state as ERROR to drop it |
| 396 | * when TPA_STOP arrives. |
| 397 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 398 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 399 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 400 | /* Move the BD from the consumer to the producer */ |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 401 | bnx2x_reuse_rx_data(fp, cons, prod); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 402 | tpa_info->tpa_state = BNX2X_TPA_ERROR; |
| 403 | return; |
| 404 | } |
| 405 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 406 | /* move empty data from pool to prod */ |
| 407 | prod_rx_buf->data = first_buf->data; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 408 | dma_unmap_addr_set(prod_rx_buf, mapping, mapping); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 409 | /* point prod_bd to new data */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 410 | prod_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 411 | prod_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 412 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 413 | /* move partial skb from cons to pool (don't unmap yet) */ |
| 414 | *first_buf = *cons_rx_buf; |
| 415 | |
| 416 | /* mark bin state as START */ |
| 417 | tpa_info->parsing_flags = |
| 418 | le16_to_cpu(cqe->pars_flags.flags); |
| 419 | tpa_info->vlan_tag = le16_to_cpu(cqe->vlan_tag); |
| 420 | tpa_info->tpa_state = BNX2X_TPA_START; |
| 421 | tpa_info->len_on_bd = le16_to_cpu(cqe->len_on_bd); |
| 422 | tpa_info->placement_offset = cqe->placement_offset; |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 423 | tpa_info->rxhash = bnx2x_get_rxhash(bp, cqe, &tpa_info->l4_rxhash); |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 424 | if (fp->mode == TPA_MODE_GRO) { |
| 425 | 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] | 426 | tpa_info->full_page = SGE_PAGES / gro_size * gro_size; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 427 | tpa_info->gro_size = gro_size; |
| 428 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 429 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 430 | #ifdef BNX2X_STOP_ON_ERROR |
| 431 | fp->tpa_queue_used |= (1 << queue); |
| 432 | #ifdef _ASM_GENERIC_INT_L64_H |
| 433 | DP(NETIF_MSG_RX_STATUS, "fp->tpa_queue_used = 0x%lx\n", |
| 434 | #else |
| 435 | DP(NETIF_MSG_RX_STATUS, "fp->tpa_queue_used = 0x%llx\n", |
| 436 | #endif |
| 437 | fp->tpa_queue_used); |
| 438 | #endif |
| 439 | } |
| 440 | |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 441 | /* Timestamp option length allowed for TPA aggregation: |
| 442 | * |
| 443 | * nop nop kind length echo val |
| 444 | */ |
| 445 | #define TPA_TSTAMP_OPT_LEN 12 |
| 446 | /** |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 447 | * bnx2x_set_gro_params - compute GRO values |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 448 | * |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 449 | * @skb: packet skb |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 450 | * @parsing_flags: parsing flags from the START CQE |
| 451 | * @len_on_bd: total length of the first packet for the |
| 452 | * aggregation. |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 453 | * @pkt_len: length of all segments |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 454 | * |
| 455 | * Approximate value of the MSS for this aggregation calculated using |
| 456 | * the first packet of it. |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 457 | * Compute number of aggregated segments, and gso_type. |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 458 | */ |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 459 | 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] | 460 | u16 len_on_bd, unsigned int pkt_len, |
| 461 | u16 num_of_coalesced_segs) |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 462 | { |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 463 | /* TPA aggregation won't have either IP options or TCP options |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 464 | * other than timestamp or IPv6 extension headers. |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 465 | */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 466 | u16 hdrs_len = ETH_HLEN + sizeof(struct tcphdr); |
| 467 | |
| 468 | if (GET_FLAG(parsing_flags, PARSING_FLAGS_OVER_ETHERNET_PROTOCOL) == |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 469 | PRS_FLAG_OVERETH_IPV6) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 470 | hdrs_len += sizeof(struct ipv6hdr); |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 471 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; |
| 472 | } else { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 473 | hdrs_len += sizeof(struct iphdr); |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 474 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; |
| 475 | } |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 476 | |
| 477 | /* Check if there was a TCP timestamp, if there is it's will |
| 478 | * always be 12 bytes length: nop nop kind length echo val. |
| 479 | * |
| 480 | * Otherwise FW would close the aggregation. |
| 481 | */ |
| 482 | if (parsing_flags & PARSING_FLAGS_TIME_STAMP_EXIST_FLAG) |
| 483 | hdrs_len += TPA_TSTAMP_OPT_LEN; |
| 484 | |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 485 | skb_shinfo(skb)->gso_size = len_on_bd - hdrs_len; |
| 486 | |
| 487 | /* tcp_gro_complete() will copy NAPI_GRO_CB(skb)->count |
| 488 | * to skb_shinfo(skb)->gso_segs |
| 489 | */ |
Yuval Mintz | ab5777d | 2013-03-11 05:17:47 +0000 | [diff] [blame] | 490 | NAPI_GRO_CB(skb)->count = num_of_coalesced_segs; |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 491 | } |
| 492 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame^] | 493 | static int bnx2x_alloc_rx_sge(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 494 | u16 index, gfp_t gfp_mask) |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 495 | { |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame^] | 496 | struct page *page = alloc_pages(gfp_mask, PAGES_PER_SGE_SHIFT); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 497 | struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; |
| 498 | struct eth_rx_sge *sge = &fp->rx_sge_ring[index]; |
| 499 | dma_addr_t mapping; |
| 500 | |
| 501 | if (unlikely(page == NULL)) { |
| 502 | BNX2X_ERR("Can't alloc sge\n"); |
| 503 | return -ENOMEM; |
| 504 | } |
| 505 | |
| 506 | mapping = dma_map_page(&bp->pdev->dev, page, 0, |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 507 | SGE_PAGES, DMA_FROM_DEVICE); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 508 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 509 | __free_pages(page, PAGES_PER_SGE_SHIFT); |
| 510 | BNX2X_ERR("Can't map sge\n"); |
| 511 | return -ENOMEM; |
| 512 | } |
| 513 | |
| 514 | sw_buf->page = page; |
| 515 | dma_unmap_addr_set(sw_buf, mapping, mapping); |
| 516 | |
| 517 | sge->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 518 | sge->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 519 | |
| 520 | return 0; |
| 521 | } |
| 522 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 523 | 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] | 524 | struct bnx2x_agg_info *tpa_info, |
| 525 | u16 pages, |
| 526 | struct sk_buff *skb, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 527 | struct eth_end_agg_rx_cqe *cqe, |
| 528 | u16 cqe_idx) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 529 | { |
| 530 | struct sw_rx_page *rx_pg, old_rx_pg; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 531 | u32 i, frag_len, frag_size; |
| 532 | int err, j, frag_id = 0; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 533 | u16 len_on_bd = tpa_info->len_on_bd; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 534 | u16 full_page = 0, gro_size = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 535 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 536 | frag_size = le16_to_cpu(cqe->pkt_len) - len_on_bd; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 537 | |
| 538 | if (fp->mode == TPA_MODE_GRO) { |
| 539 | gro_size = tpa_info->gro_size; |
| 540 | full_page = tpa_info->full_page; |
| 541 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 542 | |
| 543 | /* This is needed in order to enable forwarding support */ |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 544 | if (frag_size) |
| 545 | bnx2x_set_gro_params(skb, tpa_info->parsing_flags, len_on_bd, |
Yuval Mintz | ab5777d | 2013-03-11 05:17:47 +0000 | [diff] [blame] | 546 | le16_to_cpu(cqe->pkt_len), |
| 547 | le16_to_cpu(cqe->num_of_coalesced_segs)); |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 548 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 549 | #ifdef BNX2X_STOP_ON_ERROR |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 550 | if (pages > min_t(u32, 8, MAX_SKB_FRAGS) * SGE_PAGES) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 551 | BNX2X_ERR("SGL length is too long: %d. CQE index is %d\n", |
| 552 | pages, cqe_idx); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 553 | BNX2X_ERR("cqe->pkt_len = %d\n", cqe->pkt_len); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 554 | bnx2x_panic(); |
| 555 | return -EINVAL; |
| 556 | } |
| 557 | #endif |
| 558 | |
| 559 | /* Run through the SGL and compose the fragmented skb */ |
| 560 | for (i = 0, j = 0; i < pages; i += PAGES_PER_SGE, j++) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 561 | 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] | 562 | |
| 563 | /* FW gives the indices of the SGE as if the ring is an array |
| 564 | (meaning that "next" element will consume 2 indices) */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 565 | if (fp->mode == TPA_MODE_GRO) |
| 566 | frag_len = min_t(u32, frag_size, (u32)full_page); |
| 567 | else /* LRO */ |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 568 | frag_len = min_t(u32, frag_size, (u32)SGE_PAGES); |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 569 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 570 | rx_pg = &fp->rx_page_ring[sge_idx]; |
| 571 | old_rx_pg = *rx_pg; |
| 572 | |
| 573 | /* If we fail to allocate a substitute page, we simply stop |
| 574 | where we are and drop the whole packet */ |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame^] | 575 | err = bnx2x_alloc_rx_sge(bp, fp, sge_idx, GFP_ATOMIC); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 576 | if (unlikely(err)) { |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 577 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 578 | return err; |
| 579 | } |
| 580 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 581 | /* 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] | 582 | dma_unmap_page(&bp->pdev->dev, |
| 583 | dma_unmap_addr(&old_rx_pg, mapping), |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 584 | SGE_PAGES, DMA_FROM_DEVICE); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 585 | /* Add one frag and update the appropriate fields in the skb */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 586 | if (fp->mode == TPA_MODE_LRO) |
| 587 | skb_fill_page_desc(skb, j, old_rx_pg.page, 0, frag_len); |
| 588 | else { /* GRO */ |
| 589 | int rem; |
| 590 | int offset = 0; |
| 591 | for (rem = frag_len; rem > 0; rem -= gro_size) { |
| 592 | int len = rem > gro_size ? gro_size : rem; |
| 593 | skb_fill_page_desc(skb, frag_id++, |
| 594 | old_rx_pg.page, offset, len); |
| 595 | if (offset) |
| 596 | get_page(old_rx_pg.page); |
| 597 | offset += len; |
| 598 | } |
| 599 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 600 | |
| 601 | skb->data_len += frag_len; |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 602 | skb->truesize += SGE_PAGES; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 603 | skb->len += frag_len; |
| 604 | |
| 605 | frag_size -= frag_len; |
| 606 | } |
| 607 | |
| 608 | return 0; |
| 609 | } |
| 610 | |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 611 | static void bnx2x_frag_free(const struct bnx2x_fastpath *fp, void *data) |
| 612 | { |
| 613 | if (fp->rx_frag_size) |
| 614 | put_page(virt_to_head_page(data)); |
| 615 | else |
| 616 | kfree(data); |
| 617 | } |
| 618 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame^] | 619 | 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] | 620 | { |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame^] | 621 | if (fp->rx_frag_size) { |
| 622 | /* GFP_KERNEL allocations are used only during initialization */ |
| 623 | if (unlikely(gfp_mask & __GFP_WAIT)) |
| 624 | return (void *)__get_free_page(gfp_mask); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 625 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame^] | 626 | return netdev_alloc_frag(fp->rx_frag_size); |
| 627 | } |
| 628 | |
| 629 | return kmalloc(fp->rx_buf_size + NET_SKB_PAD, gfp_mask); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 630 | } |
| 631 | |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 632 | #ifdef CONFIG_INET |
| 633 | static void bnx2x_gro_ip_csum(struct bnx2x *bp, struct sk_buff *skb) |
| 634 | { |
| 635 | const struct iphdr *iph = ip_hdr(skb); |
| 636 | struct tcphdr *th; |
| 637 | |
| 638 | skb_set_transport_header(skb, sizeof(struct iphdr)); |
| 639 | th = tcp_hdr(skb); |
| 640 | |
| 641 | th->check = ~tcp_v4_check(skb->len - skb_transport_offset(skb), |
| 642 | iph->saddr, iph->daddr, 0); |
| 643 | } |
| 644 | |
| 645 | static void bnx2x_gro_ipv6_csum(struct bnx2x *bp, struct sk_buff *skb) |
| 646 | { |
| 647 | struct ipv6hdr *iph = ipv6_hdr(skb); |
| 648 | struct tcphdr *th; |
| 649 | |
| 650 | skb_set_transport_header(skb, sizeof(struct ipv6hdr)); |
| 651 | th = tcp_hdr(skb); |
| 652 | |
| 653 | th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb), |
| 654 | &iph->saddr, &iph->daddr, 0); |
| 655 | } |
Yuval Mintz | 2c2d06d | 2013-04-24 01:44:58 +0000 | [diff] [blame] | 656 | |
| 657 | static void bnx2x_gro_csum(struct bnx2x *bp, struct sk_buff *skb, |
| 658 | void (*gro_func)(struct bnx2x*, struct sk_buff*)) |
| 659 | { |
| 660 | skb_set_network_header(skb, 0); |
| 661 | gro_func(bp, skb); |
| 662 | tcp_gro_complete(skb); |
| 663 | } |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 664 | #endif |
| 665 | |
| 666 | static void bnx2x_gro_receive(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 667 | struct sk_buff *skb) |
| 668 | { |
| 669 | #ifdef CONFIG_INET |
Yuval Mintz | cbf1de7 | 2013-01-17 03:26:21 +0000 | [diff] [blame] | 670 | if (skb_shinfo(skb)->gso_size) { |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 671 | switch (be16_to_cpu(skb->protocol)) { |
| 672 | case ETH_P_IP: |
Yuval Mintz | 2c2d06d | 2013-04-24 01:44:58 +0000 | [diff] [blame] | 673 | bnx2x_gro_csum(bp, skb, bnx2x_gro_ip_csum); |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 674 | break; |
| 675 | case ETH_P_IPV6: |
Yuval Mintz | 2c2d06d | 2013-04-24 01:44:58 +0000 | [diff] [blame] | 676 | bnx2x_gro_csum(bp, skb, bnx2x_gro_ipv6_csum); |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 677 | break; |
| 678 | default: |
Yuval Mintz | 2c2d06d | 2013-04-24 01:44:58 +0000 | [diff] [blame] | 679 | 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] | 680 | be16_to_cpu(skb->protocol)); |
| 681 | } |
Yuval Mintz | 9969085 | 2013-01-14 05:11:49 +0000 | [diff] [blame] | 682 | } |
| 683 | #endif |
| 684 | napi_gro_receive(&fp->napi, skb); |
| 685 | } |
| 686 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 687 | static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 688 | struct bnx2x_agg_info *tpa_info, |
| 689 | u16 pages, |
| 690 | struct eth_end_agg_rx_cqe *cqe, |
| 691 | u16 cqe_idx) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 692 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 693 | struct sw_rx_bd *rx_buf = &tpa_info->first_buf; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 694 | u8 pad = tpa_info->placement_offset; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 695 | u16 len = tpa_info->len_on_bd; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 696 | struct sk_buff *skb = NULL; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 697 | u8 *new_data, *data = rx_buf->data; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 698 | u8 old_tpa_state = tpa_info->tpa_state; |
| 699 | |
| 700 | tpa_info->tpa_state = BNX2X_TPA_STOP; |
| 701 | |
| 702 | /* If we there was an error during the handling of the TPA_START - |
| 703 | * drop this aggregation. |
| 704 | */ |
| 705 | if (old_tpa_state == BNX2X_TPA_ERROR) |
| 706 | goto drop; |
| 707 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 708 | /* Try to allocate the new data */ |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame^] | 709 | new_data = bnx2x_frag_alloc(fp, GFP_ATOMIC); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 710 | /* Unmap skb in the pool anyway, as we are going to change |
| 711 | pool entry status to BNX2X_TPA_STOP even if new skb allocation |
| 712 | fails. */ |
| 713 | dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(rx_buf, mapping), |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 714 | fp->rx_buf_size, DMA_FROM_DEVICE); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 715 | if (likely(new_data)) |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 716 | skb = build_skb(data, fp->rx_frag_size); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 717 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 718 | if (likely(skb)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 719 | #ifdef BNX2X_STOP_ON_ERROR |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 720 | if (pad + len > fp->rx_buf_size) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 721 | 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] | 722 | pad, len, fp->rx_buf_size); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 723 | bnx2x_panic(); |
| 724 | return; |
| 725 | } |
| 726 | #endif |
| 727 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 728 | skb_reserve(skb, pad + NET_SKB_PAD); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 729 | skb_put(skb, len); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 730 | skb->rxhash = tpa_info->rxhash; |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 731 | skb->l4_rxhash = tpa_info->l4_rxhash; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 732 | |
| 733 | skb->protocol = eth_type_trans(skb, bp->dev); |
| 734 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 735 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 736 | if (!bnx2x_fill_frag_skb(bp, fp, tpa_info, pages, |
| 737 | skb, cqe, cqe_idx)) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 738 | if (tpa_info->parsing_flags & PARSING_FLAGS_VLAN) |
Patrick McHardy | 86a9bad | 2013-04-19 02:04:30 +0000 | [diff] [blame] | 739 | __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] | 740 | bnx2x_gro_receive(bp, fp, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 741 | } else { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 742 | DP(NETIF_MSG_RX_STATUS, |
| 743 | "Failed to allocate new pages - dropping packet!\n"); |
Vladislav Zolotarov | 4095553 | 2011-05-22 10:06:58 +0000 | [diff] [blame] | 744 | dev_kfree_skb_any(skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 745 | } |
| 746 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 747 | /* put new data in bin */ |
| 748 | rx_buf->data = new_data; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 749 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 750 | return; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 751 | } |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 752 | bnx2x_frag_free(fp, new_data); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 753 | drop: |
| 754 | /* drop the packet and keep the buffer in the bin */ |
| 755 | DP(NETIF_MSG_RX_STATUS, |
| 756 | "Failed to allocate or map a new skb - dropping packet!\n"); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 757 | bnx2x_fp_stats(bp, fp)->eth_q_stats.rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 758 | } |
| 759 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame^] | 760 | static int bnx2x_alloc_rx_data(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 761 | u16 index, gfp_t gfp_mask) |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 762 | { |
| 763 | u8 *data; |
| 764 | struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[index]; |
| 765 | struct eth_rx_bd *rx_bd = &fp->rx_desc_ring[index]; |
| 766 | dma_addr_t mapping; |
| 767 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame^] | 768 | data = bnx2x_frag_alloc(fp, gfp_mask); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 769 | if (unlikely(data == NULL)) |
| 770 | return -ENOMEM; |
| 771 | |
| 772 | mapping = dma_map_single(&bp->pdev->dev, data + NET_SKB_PAD, |
| 773 | fp->rx_buf_size, |
| 774 | DMA_FROM_DEVICE); |
| 775 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 776 | bnx2x_frag_free(fp, data); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 777 | BNX2X_ERR("Can't map rx data\n"); |
| 778 | return -ENOMEM; |
| 779 | } |
| 780 | |
| 781 | rx_buf->data = data; |
| 782 | dma_unmap_addr_set(rx_buf, mapping, mapping); |
| 783 | |
| 784 | rx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 785 | rx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 786 | |
| 787 | return 0; |
| 788 | } |
| 789 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 790 | static |
| 791 | void bnx2x_csum_validate(struct sk_buff *skb, union eth_rx_cqe *cqe, |
| 792 | struct bnx2x_fastpath *fp, |
| 793 | struct bnx2x_eth_q_stats *qstats) |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 794 | { |
Michal Schmidt | e488921 | 2012-09-13 12:59:44 +0000 | [diff] [blame] | 795 | /* Do nothing if no L4 csum validation was done. |
| 796 | * We do not check whether IP csum was validated. For IPv4 we assume |
| 797 | * that if the card got as far as validating the L4 csum, it also |
| 798 | * validated the IP csum. IPv6 has no IP csum. |
| 799 | */ |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 800 | if (cqe->fast_path_cqe.status_flags & |
Michal Schmidt | e488921 | 2012-09-13 12:59:44 +0000 | [diff] [blame] | 801 | ETH_FAST_PATH_RX_CQE_L4_XSUM_NO_VALIDATION_FLG) |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 802 | return; |
| 803 | |
Michal Schmidt | e488921 | 2012-09-13 12:59:44 +0000 | [diff] [blame] | 804 | /* If L4 validation was done, check if an error was found. */ |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 805 | |
| 806 | if (cqe->fast_path_cqe.type_error_flags & |
| 807 | (ETH_FAST_PATH_RX_CQE_IP_BAD_XSUM_FLG | |
| 808 | ETH_FAST_PATH_RX_CQE_L4_BAD_XSUM_FLG)) |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 809 | qstats->hw_csum_err++; |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 810 | else |
| 811 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 812 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 813 | |
| 814 | int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) |
| 815 | { |
| 816 | struct bnx2x *bp = fp->bp; |
| 817 | u16 bd_cons, bd_prod, bd_prod_fw, comp_ring_cons; |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 818 | u16 sw_comp_cons, sw_comp_prod; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 819 | int rx_pkt = 0; |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 820 | union eth_rx_cqe *cqe; |
| 821 | struct eth_fast_path_rx_cqe *cqe_fp; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 822 | |
| 823 | #ifdef BNX2X_STOP_ON_ERROR |
| 824 | if (unlikely(bp->panic)) |
| 825 | return 0; |
| 826 | #endif |
| 827 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 828 | bd_cons = fp->rx_bd_cons; |
| 829 | bd_prod = fp->rx_bd_prod; |
| 830 | bd_prod_fw = bd_prod; |
| 831 | sw_comp_cons = fp->rx_comp_cons; |
| 832 | sw_comp_prod = fp->rx_comp_prod; |
| 833 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 834 | comp_ring_cons = RCQ_BD(sw_comp_cons); |
| 835 | cqe = &fp->rx_comp_ring[comp_ring_cons]; |
| 836 | cqe_fp = &cqe->fast_path_cqe; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 837 | |
| 838 | DP(NETIF_MSG_RX_STATUS, |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 839 | "queue[%d]: sw_comp_cons %u\n", fp->index, sw_comp_cons); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 840 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 841 | while (BNX2X_IS_CQE_COMPLETED(cqe_fp)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 842 | struct sw_rx_bd *rx_buf = NULL; |
| 843 | struct sk_buff *skb; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 844 | u8 cqe_fp_flags; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 845 | enum eth_rx_cqe_type cqe_fp_type; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 846 | u16 len, pad, queue; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 847 | u8 *data; |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 848 | bool l4_rxhash; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 849 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 850 | #ifdef BNX2X_STOP_ON_ERROR |
| 851 | if (unlikely(bp->panic)) |
| 852 | return 0; |
| 853 | #endif |
| 854 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 855 | bd_prod = RX_BD(bd_prod); |
| 856 | bd_cons = RX_BD(bd_cons); |
| 857 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 858 | cqe_fp_flags = cqe_fp->type_error_flags; |
| 859 | cqe_fp_type = cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 860 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 861 | DP(NETIF_MSG_RX_STATUS, |
| 862 | "CQE type %x err %x status %x queue %x vlan %x len %u\n", |
| 863 | CQE_TYPE(cqe_fp_flags), |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 864 | cqe_fp_flags, cqe_fp->status_flags, |
| 865 | le32_to_cpu(cqe_fp->rss_hash_result), |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 866 | le16_to_cpu(cqe_fp->vlan_tag), |
| 867 | le16_to_cpu(cqe_fp->pkt_len_or_gro_seg_len)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 868 | |
| 869 | /* is this a slowpath msg? */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 870 | if (unlikely(CQE_TYPE_SLOW(cqe_fp_type))) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 871 | bnx2x_sp_event(fp, cqe); |
| 872 | goto next_cqe; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 873 | } |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 874 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 875 | rx_buf = &fp->rx_buf_ring[bd_cons]; |
| 876 | data = rx_buf->data; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 877 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 878 | if (!CQE_TYPE_FAST(cqe_fp_type)) { |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 879 | struct bnx2x_agg_info *tpa_info; |
| 880 | u16 frag_size, pages; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 881 | #ifdef BNX2X_STOP_ON_ERROR |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 882 | /* sanity check */ |
| 883 | if (fp->disable_tpa && |
| 884 | (CQE_TYPE_START(cqe_fp_type) || |
| 885 | CQE_TYPE_STOP(cqe_fp_type))) |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 886 | BNX2X_ERR("START/STOP packet while disable_tpa type %x\n", |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 887 | CQE_TYPE(cqe_fp_type)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 888 | #endif |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 889 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 890 | if (CQE_TYPE_START(cqe_fp_type)) { |
| 891 | u16 queue = cqe_fp->queue_index; |
| 892 | DP(NETIF_MSG_RX_STATUS, |
| 893 | "calling tpa_start on queue %d\n", |
| 894 | queue); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 895 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 896 | bnx2x_tpa_start(fp, queue, |
| 897 | bd_cons, bd_prod, |
| 898 | cqe_fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 899 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 900 | goto next_rx; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 901 | } |
| 902 | queue = cqe->end_agg_cqe.queue_index; |
| 903 | tpa_info = &fp->tpa_info[queue]; |
| 904 | DP(NETIF_MSG_RX_STATUS, |
| 905 | "calling tpa_stop on queue %d\n", |
| 906 | queue); |
| 907 | |
| 908 | frag_size = le16_to_cpu(cqe->end_agg_cqe.pkt_len) - |
| 909 | tpa_info->len_on_bd; |
| 910 | |
| 911 | if (fp->mode == TPA_MODE_GRO) |
| 912 | pages = (frag_size + tpa_info->full_page - 1) / |
| 913 | tpa_info->full_page; |
| 914 | else |
| 915 | pages = SGE_PAGE_ALIGN(frag_size) >> |
| 916 | SGE_PAGE_SHIFT; |
| 917 | |
| 918 | bnx2x_tpa_stop(bp, fp, tpa_info, pages, |
| 919 | &cqe->end_agg_cqe, comp_ring_cons); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 920 | #ifdef BNX2X_STOP_ON_ERROR |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 921 | if (bp->panic) |
| 922 | return 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 923 | #endif |
| 924 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 925 | bnx2x_update_sge_prod(fp, pages, &cqe->end_agg_cqe); |
| 926 | goto next_cqe; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 927 | } |
| 928 | /* non TPA */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 929 | len = le16_to_cpu(cqe_fp->pkt_len_or_gro_seg_len); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 930 | pad = cqe_fp->placement_offset; |
| 931 | dma_sync_single_for_cpu(&bp->pdev->dev, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 932 | dma_unmap_addr(rx_buf, mapping), |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 933 | pad + RX_COPY_THRESH, |
| 934 | DMA_FROM_DEVICE); |
| 935 | pad += NET_SKB_PAD; |
| 936 | prefetch(data + pad); /* speedup eth_type_trans() */ |
| 937 | /* is this an error packet? */ |
| 938 | if (unlikely(cqe_fp_flags & ETH_RX_ERROR_FALGS)) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 939 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 940 | "ERROR flags %x rx packet %u\n", |
| 941 | cqe_fp_flags, sw_comp_cons); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 942 | bnx2x_fp_qstats(bp, fp)->rx_err_discard_pkt++; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 943 | goto reuse_rx; |
| 944 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 945 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 946 | /* Since we don't have a jumbo ring |
| 947 | * copy small packets if mtu > 1500 |
| 948 | */ |
| 949 | if ((bp->dev->mtu > ETH_MAX_PACKET_SIZE) && |
| 950 | (len <= RX_COPY_THRESH)) { |
| 951 | skb = netdev_alloc_skb_ip_align(bp->dev, len); |
| 952 | if (skb == NULL) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 953 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 954 | "ERROR packet dropped because of alloc failure\n"); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 955 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 956 | goto reuse_rx; |
| 957 | } |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 958 | memcpy(skb->data, data + pad, len); |
| 959 | bnx2x_reuse_rx_data(fp, bd_cons, bd_prod); |
| 960 | } else { |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame^] | 961 | if (likely(bnx2x_alloc_rx_data(bp, fp, bd_prod, |
| 962 | GFP_ATOMIC) == 0)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 963 | dma_unmap_single(&bp->pdev->dev, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 964 | dma_unmap_addr(rx_buf, mapping), |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 965 | fp->rx_buf_size, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 966 | DMA_FROM_DEVICE); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 967 | skb = build_skb(data, fp->rx_frag_size); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 968 | if (unlikely(!skb)) { |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 969 | bnx2x_frag_free(fp, data); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 970 | bnx2x_fp_qstats(bp, fp)-> |
| 971 | rx_skb_alloc_failed++; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 972 | goto next_rx; |
| 973 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 974 | skb_reserve(skb, pad); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 975 | } else { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 976 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
| 977 | "ERROR packet dropped because of alloc failure\n"); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 978 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 979 | reuse_rx: |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 980 | bnx2x_reuse_rx_data(fp, bd_cons, bd_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 981 | goto next_rx; |
| 982 | } |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 983 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 984 | |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 985 | skb_put(skb, len); |
| 986 | skb->protocol = eth_type_trans(skb, bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 987 | |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 988 | /* Set Toeplitz hash for a none-LRO skb */ |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 989 | skb->rxhash = bnx2x_get_rxhash(bp, cqe_fp, &l4_rxhash); |
| 990 | skb->l4_rxhash = l4_rxhash; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 991 | |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 992 | skb_checksum_none_assert(skb); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 993 | |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 994 | if (bp->dev->features & NETIF_F_RXCSUM) |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 995 | bnx2x_csum_validate(skb, cqe, fp, |
| 996 | bnx2x_fp_qstats(bp, fp)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 997 | |
Dmitry Kravkov | f233caf | 2011-11-13 04:34:22 +0000 | [diff] [blame] | 998 | skb_record_rx_queue(skb, fp->rx_queue); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 999 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1000 | if (le16_to_cpu(cqe_fp->pars_flags.flags) & |
| 1001 | PARSING_FLAGS_VLAN) |
Patrick McHardy | 86a9bad | 2013-04-19 02:04:30 +0000 | [diff] [blame] | 1002 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1003 | le16_to_cpu(cqe_fp->vlan_tag)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1004 | |
Eliezer Tamir | 8b80cda | 2013-07-10 17:13:26 +0300 | [diff] [blame] | 1005 | skb_mark_napi_id(skb, &fp->napi); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1006 | |
| 1007 | if (bnx2x_fp_ll_polling(fp)) |
| 1008 | netif_receive_skb(skb); |
| 1009 | else |
| 1010 | napi_gro_receive(&fp->napi, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1011 | next_rx: |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1012 | rx_buf->data = NULL; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1013 | |
| 1014 | bd_cons = NEXT_RX_IDX(bd_cons); |
| 1015 | bd_prod = NEXT_RX_IDX(bd_prod); |
| 1016 | bd_prod_fw = NEXT_RX_IDX(bd_prod_fw); |
| 1017 | rx_pkt++; |
| 1018 | next_cqe: |
| 1019 | sw_comp_prod = NEXT_RCQ_IDX(sw_comp_prod); |
| 1020 | sw_comp_cons = NEXT_RCQ_IDX(sw_comp_cons); |
| 1021 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 1022 | /* mark CQE as free */ |
| 1023 | BNX2X_SEED_CQE(cqe_fp); |
| 1024 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1025 | if (rx_pkt == budget) |
| 1026 | break; |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 1027 | |
| 1028 | comp_ring_cons = RCQ_BD(sw_comp_cons); |
| 1029 | cqe = &fp->rx_comp_ring[comp_ring_cons]; |
| 1030 | cqe_fp = &cqe->fast_path_cqe; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1031 | } /* while */ |
| 1032 | |
| 1033 | fp->rx_bd_cons = bd_cons; |
| 1034 | fp->rx_bd_prod = bd_prod_fw; |
| 1035 | fp->rx_comp_cons = sw_comp_cons; |
| 1036 | fp->rx_comp_prod = sw_comp_prod; |
| 1037 | |
| 1038 | /* Update producers */ |
| 1039 | bnx2x_update_rx_prod(bp, fp, bd_prod_fw, sw_comp_prod, |
| 1040 | fp->rx_sge_prod); |
| 1041 | |
| 1042 | fp->rx_pkt += rx_pkt; |
| 1043 | fp->rx_calls++; |
| 1044 | |
| 1045 | return rx_pkt; |
| 1046 | } |
| 1047 | |
| 1048 | static irqreturn_t bnx2x_msix_fp_int(int irq, void *fp_cookie) |
| 1049 | { |
| 1050 | struct bnx2x_fastpath *fp = fp_cookie; |
| 1051 | struct bnx2x *bp = fp->bp; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1052 | u8 cos; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1053 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1054 | DP(NETIF_MSG_INTR, |
| 1055 | "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] | 1056 | fp->index, fp->fw_sb_id, fp->igu_sb_id); |
Yuval Mintz | ecf01c2 | 2013-04-22 02:53:03 +0000 | [diff] [blame] | 1057 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1058 | 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] | 1059 | |
| 1060 | #ifdef BNX2X_STOP_ON_ERROR |
| 1061 | if (unlikely(bp->panic)) |
| 1062 | return IRQ_HANDLED; |
| 1063 | #endif |
| 1064 | |
| 1065 | /* Handle Rx and Tx according to MSI-X vector */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1066 | for_each_cos_in_tx_queue(fp, cos) |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 1067 | prefetch(fp->txdata_ptr[cos]->tx_cons_sb); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1068 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1069 | prefetch(&fp->sb_running_index[SM_RX_ID]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1070 | napi_schedule(&bnx2x_fp(bp, fp->index, napi)); |
| 1071 | |
| 1072 | return IRQ_HANDLED; |
| 1073 | } |
| 1074 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1075 | /* HW Lock for shared dual port PHYs */ |
| 1076 | void bnx2x_acquire_phy_lock(struct bnx2x *bp) |
| 1077 | { |
| 1078 | mutex_lock(&bp->port.phy_mutex); |
| 1079 | |
Yaniv Rosner | 8203c4b | 2012-11-27 03:46:33 +0000 | [diff] [blame] | 1080 | bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_MDIO); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1081 | } |
| 1082 | |
| 1083 | void bnx2x_release_phy_lock(struct bnx2x *bp) |
| 1084 | { |
Yaniv Rosner | 8203c4b | 2012-11-27 03:46:33 +0000 | [diff] [blame] | 1085 | bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_MDIO); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1086 | |
| 1087 | mutex_unlock(&bp->port.phy_mutex); |
| 1088 | } |
| 1089 | |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1090 | /* calculates MF speed according to current linespeed and MF configuration */ |
| 1091 | u16 bnx2x_get_mf_speed(struct bnx2x *bp) |
| 1092 | { |
| 1093 | u16 line_speed = bp->link_vars.line_speed; |
| 1094 | if (IS_MF(bp)) { |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 1095 | u16 maxCfg = bnx2x_extract_max_cfg(bp, |
| 1096 | bp->mf_config[BP_VN(bp)]); |
| 1097 | |
| 1098 | /* Calculate the current MAX line speed limit for the MF |
| 1099 | * devices |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1100 | */ |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 1101 | if (IS_MF_SI(bp)) |
| 1102 | line_speed = (line_speed * maxCfg) / 100; |
| 1103 | else { /* SD mode */ |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1104 | u16 vn_max_rate = maxCfg * 100; |
| 1105 | |
| 1106 | if (vn_max_rate < line_speed) |
| 1107 | line_speed = vn_max_rate; |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 1108 | } |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1109 | } |
| 1110 | |
| 1111 | return line_speed; |
| 1112 | } |
| 1113 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1114 | /** |
| 1115 | * bnx2x_fill_report_data - fill link report data to report |
| 1116 | * |
| 1117 | * @bp: driver handle |
| 1118 | * @data: link state to update |
| 1119 | * |
| 1120 | * It uses a none-atomic bit operations because is called under the mutex. |
| 1121 | */ |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1122 | static void bnx2x_fill_report_data(struct bnx2x *bp, |
| 1123 | struct bnx2x_link_report_data *data) |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1124 | { |
| 1125 | u16 line_speed = bnx2x_get_mf_speed(bp); |
| 1126 | |
| 1127 | memset(data, 0, sizeof(*data)); |
| 1128 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 1129 | /* Fill the report data: effective line speed */ |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1130 | data->line_speed = line_speed; |
| 1131 | |
| 1132 | /* Link is down */ |
| 1133 | if (!bp->link_vars.link_up || (bp->flags & MF_FUNC_DIS)) |
| 1134 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1135 | &data->link_report_flags); |
| 1136 | |
| 1137 | /* Full DUPLEX */ |
| 1138 | if (bp->link_vars.duplex == DUPLEX_FULL) |
| 1139 | __set_bit(BNX2X_LINK_REPORT_FD, &data->link_report_flags); |
| 1140 | |
| 1141 | /* Rx Flow Control is ON */ |
| 1142 | if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_RX) |
| 1143 | __set_bit(BNX2X_LINK_REPORT_RX_FC_ON, &data->link_report_flags); |
| 1144 | |
| 1145 | /* Tx Flow Control is ON */ |
| 1146 | if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX) |
| 1147 | __set_bit(BNX2X_LINK_REPORT_TX_FC_ON, &data->link_report_flags); |
| 1148 | } |
| 1149 | |
| 1150 | /** |
| 1151 | * bnx2x_link_report - report link status to OS. |
| 1152 | * |
| 1153 | * @bp: driver handle |
| 1154 | * |
| 1155 | * Calls the __bnx2x_link_report() under the same locking scheme |
| 1156 | * as a link/PHY state managing code to ensure a consistent link |
| 1157 | * reporting. |
| 1158 | */ |
| 1159 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1160 | void bnx2x_link_report(struct bnx2x *bp) |
| 1161 | { |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1162 | bnx2x_acquire_phy_lock(bp); |
| 1163 | __bnx2x_link_report(bp); |
| 1164 | bnx2x_release_phy_lock(bp); |
| 1165 | } |
| 1166 | |
| 1167 | /** |
| 1168 | * __bnx2x_link_report - report link status to OS. |
| 1169 | * |
| 1170 | * @bp: driver handle |
| 1171 | * |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 1172 | * None atomic implementation. |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1173 | * Should be called under the phy_lock. |
| 1174 | */ |
| 1175 | void __bnx2x_link_report(struct bnx2x *bp) |
| 1176 | { |
| 1177 | struct bnx2x_link_report_data cur_data; |
| 1178 | |
| 1179 | /* reread mf_cfg */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1180 | if (IS_PF(bp) && !CHIP_IS_E1(bp)) |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1181 | bnx2x_read_mf_cfg(bp); |
| 1182 | |
| 1183 | /* Read the current link report info */ |
| 1184 | bnx2x_fill_report_data(bp, &cur_data); |
| 1185 | |
| 1186 | /* Don't report link down or exactly the same link status twice */ |
| 1187 | if (!memcmp(&cur_data, &bp->last_reported_link, sizeof(cur_data)) || |
| 1188 | (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1189 | &bp->last_reported_link.link_report_flags) && |
| 1190 | test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1191 | &cur_data.link_report_flags))) |
| 1192 | return; |
| 1193 | |
| 1194 | bp->link_cnt++; |
| 1195 | |
| 1196 | /* We are going to report a new link parameters now - |
| 1197 | * remember the current data for the next time. |
| 1198 | */ |
| 1199 | memcpy(&bp->last_reported_link, &cur_data, sizeof(cur_data)); |
| 1200 | |
| 1201 | if (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1202 | &cur_data.link_report_flags)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1203 | netif_carrier_off(bp->dev); |
| 1204 | netdev_err(bp->dev, "NIC Link is Down\n"); |
| 1205 | return; |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1206 | } else { |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1207 | const char *duplex; |
| 1208 | const char *flow; |
| 1209 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1210 | netif_carrier_on(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1211 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1212 | if (test_and_clear_bit(BNX2X_LINK_REPORT_FD, |
| 1213 | &cur_data.link_report_flags)) |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1214 | duplex = "full"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1215 | else |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1216 | duplex = "half"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1217 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1218 | /* Handle the FC at the end so that only these flags would be |
| 1219 | * possibly set. This way we may easily check if there is no FC |
| 1220 | * enabled. |
| 1221 | */ |
| 1222 | if (cur_data.link_report_flags) { |
| 1223 | if (test_bit(BNX2X_LINK_REPORT_RX_FC_ON, |
| 1224 | &cur_data.link_report_flags)) { |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1225 | if (test_bit(BNX2X_LINK_REPORT_TX_FC_ON, |
| 1226 | &cur_data.link_report_flags)) |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1227 | flow = "ON - receive & transmit"; |
| 1228 | else |
| 1229 | flow = "ON - receive"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1230 | } else { |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1231 | flow = "ON - transmit"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1232 | } |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1233 | } else { |
| 1234 | flow = "none"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1235 | } |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1236 | netdev_info(bp->dev, "NIC Link is Up, %d Mbps %s duplex, Flow control: %s\n", |
| 1237 | cur_data.line_speed, duplex, flow); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1238 | } |
| 1239 | } |
| 1240 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1241 | static void bnx2x_set_next_page_sgl(struct bnx2x_fastpath *fp) |
| 1242 | { |
| 1243 | int i; |
| 1244 | |
| 1245 | for (i = 1; i <= NUM_RX_SGE_PAGES; i++) { |
| 1246 | struct eth_rx_sge *sge; |
| 1247 | |
| 1248 | sge = &fp->rx_sge_ring[RX_SGE_CNT * i - 2]; |
| 1249 | sge->addr_hi = |
| 1250 | cpu_to_le32(U64_HI(fp->rx_sge_mapping + |
| 1251 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); |
| 1252 | |
| 1253 | sge->addr_lo = |
| 1254 | cpu_to_le32(U64_LO(fp->rx_sge_mapping + |
| 1255 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); |
| 1256 | } |
| 1257 | } |
| 1258 | |
| 1259 | static void bnx2x_free_tpa_pool(struct bnx2x *bp, |
| 1260 | struct bnx2x_fastpath *fp, int last) |
| 1261 | { |
| 1262 | int i; |
| 1263 | |
| 1264 | for (i = 0; i < last; i++) { |
| 1265 | struct bnx2x_agg_info *tpa_info = &fp->tpa_info[i]; |
| 1266 | struct sw_rx_bd *first_buf = &tpa_info->first_buf; |
| 1267 | u8 *data = first_buf->data; |
| 1268 | |
| 1269 | if (data == NULL) { |
| 1270 | DP(NETIF_MSG_IFDOWN, "tpa bin %d empty on free\n", i); |
| 1271 | continue; |
| 1272 | } |
| 1273 | if (tpa_info->tpa_state == BNX2X_TPA_START) |
| 1274 | dma_unmap_single(&bp->pdev->dev, |
| 1275 | dma_unmap_addr(first_buf, mapping), |
| 1276 | fp->rx_buf_size, DMA_FROM_DEVICE); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1277 | bnx2x_frag_free(fp, data); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1278 | first_buf->data = NULL; |
| 1279 | } |
| 1280 | } |
| 1281 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1282 | void bnx2x_init_rx_rings_cnic(struct bnx2x *bp) |
| 1283 | { |
| 1284 | int j; |
| 1285 | |
| 1286 | for_each_rx_queue_cnic(bp, j) { |
| 1287 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1288 | |
| 1289 | fp->rx_bd_cons = 0; |
| 1290 | |
| 1291 | /* Activate BD ring */ |
| 1292 | /* Warning! |
| 1293 | * this will generate an interrupt (to the TSTORM) |
| 1294 | * must only be done after chip is initialized |
| 1295 | */ |
| 1296 | bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod, |
| 1297 | fp->rx_sge_prod); |
| 1298 | } |
| 1299 | } |
| 1300 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1301 | void bnx2x_init_rx_rings(struct bnx2x *bp) |
| 1302 | { |
| 1303 | int func = BP_FUNC(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1304 | u16 ring_prod; |
| 1305 | int i, j; |
| 1306 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1307 | /* Allocate TPA resources */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1308 | for_each_eth_queue(bp, j) { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1309 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1310 | |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1311 | DP(NETIF_MSG_IFUP, |
| 1312 | "mtu %d rx_buf_size %d\n", bp->dev->mtu, fp->rx_buf_size); |
| 1313 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1314 | if (!fp->disable_tpa) { |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 1315 | /* Fill the per-aggregation pool */ |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 1316 | for (i = 0; i < MAX_AGG_QS(bp); i++) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1317 | struct bnx2x_agg_info *tpa_info = |
| 1318 | &fp->tpa_info[i]; |
| 1319 | struct sw_rx_bd *first_buf = |
| 1320 | &tpa_info->first_buf; |
| 1321 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame^] | 1322 | first_buf->data = |
| 1323 | bnx2x_frag_alloc(fp, GFP_KERNEL); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1324 | if (!first_buf->data) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1325 | BNX2X_ERR("Failed to allocate TPA skb pool for queue[%d] - disabling TPA on this queue!\n", |
| 1326 | j); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1327 | bnx2x_free_tpa_pool(bp, fp, i); |
| 1328 | fp->disable_tpa = 1; |
| 1329 | break; |
| 1330 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1331 | dma_unmap_addr_set(first_buf, mapping, 0); |
| 1332 | tpa_info->tpa_state = BNX2X_TPA_STOP; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1333 | } |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1334 | |
| 1335 | /* "next page" elements initialization */ |
| 1336 | bnx2x_set_next_page_sgl(fp); |
| 1337 | |
| 1338 | /* set SGEs bit mask */ |
| 1339 | bnx2x_init_sge_ring_bit_mask(fp); |
| 1340 | |
| 1341 | /* Allocate SGEs and initialize the ring elements */ |
| 1342 | for (i = 0, ring_prod = 0; |
| 1343 | i < MAX_RX_SGE_CNT*NUM_RX_SGE_PAGES; i++) { |
| 1344 | |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame^] | 1345 | if (bnx2x_alloc_rx_sge(bp, fp, ring_prod, |
| 1346 | GFP_KERNEL) < 0) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1347 | BNX2X_ERR("was only able to allocate %d rx sges\n", |
| 1348 | i); |
| 1349 | BNX2X_ERR("disabling TPA for queue[%d]\n", |
| 1350 | j); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1351 | /* Cleanup already allocated elements */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1352 | bnx2x_free_rx_sge_range(bp, fp, |
| 1353 | ring_prod); |
| 1354 | bnx2x_free_tpa_pool(bp, fp, |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 1355 | MAX_AGG_QS(bp)); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1356 | fp->disable_tpa = 1; |
| 1357 | ring_prod = 0; |
| 1358 | break; |
| 1359 | } |
| 1360 | ring_prod = NEXT_SGE_IDX(ring_prod); |
| 1361 | } |
| 1362 | |
| 1363 | fp->rx_sge_prod = ring_prod; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1364 | } |
| 1365 | } |
| 1366 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1367 | for_each_eth_queue(bp, j) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1368 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1369 | |
| 1370 | fp->rx_bd_cons = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1371 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1372 | /* Activate BD ring */ |
| 1373 | /* Warning! |
| 1374 | * this will generate an interrupt (to the TSTORM) |
| 1375 | * must only be done after chip is initialized |
| 1376 | */ |
| 1377 | bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod, |
| 1378 | fp->rx_sge_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1379 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1380 | if (j != 0) |
| 1381 | continue; |
| 1382 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1383 | if (CHIP_IS_E1(bp)) { |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 1384 | REG_WR(bp, BAR_USTRORM_INTMEM + |
| 1385 | USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func), |
| 1386 | U64_LO(fp->rx_comp_mapping)); |
| 1387 | REG_WR(bp, BAR_USTRORM_INTMEM + |
| 1388 | USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func) + 4, |
| 1389 | U64_HI(fp->rx_comp_mapping)); |
| 1390 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1391 | } |
| 1392 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 1393 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1394 | static void bnx2x_free_tx_skbs_queue(struct bnx2x_fastpath *fp) |
| 1395 | { |
| 1396 | u8 cos; |
| 1397 | struct bnx2x *bp = fp->bp; |
| 1398 | |
| 1399 | for_each_cos_in_tx_queue(fp, cos) { |
| 1400 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
| 1401 | unsigned pkts_compl = 0, bytes_compl = 0; |
| 1402 | |
| 1403 | u16 sw_prod = txdata->tx_pkt_prod; |
| 1404 | u16 sw_cons = txdata->tx_pkt_cons; |
| 1405 | |
| 1406 | while (sw_cons != sw_prod) { |
| 1407 | bnx2x_free_tx_pkt(bp, txdata, TX_BD(sw_cons), |
| 1408 | &pkts_compl, &bytes_compl); |
| 1409 | sw_cons++; |
| 1410 | } |
| 1411 | |
| 1412 | netdev_tx_reset_queue( |
| 1413 | netdev_get_tx_queue(bp->dev, |
| 1414 | txdata->txq_index)); |
| 1415 | } |
| 1416 | } |
| 1417 | |
| 1418 | static void bnx2x_free_tx_skbs_cnic(struct bnx2x *bp) |
| 1419 | { |
| 1420 | int i; |
| 1421 | |
| 1422 | for_each_tx_queue_cnic(bp, i) { |
| 1423 | bnx2x_free_tx_skbs_queue(&bp->fp[i]); |
| 1424 | } |
| 1425 | } |
| 1426 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1427 | static void bnx2x_free_tx_skbs(struct bnx2x *bp) |
| 1428 | { |
| 1429 | int i; |
| 1430 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1431 | for_each_eth_queue(bp, i) { |
| 1432 | bnx2x_free_tx_skbs_queue(&bp->fp[i]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1433 | } |
| 1434 | } |
| 1435 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1436 | static void bnx2x_free_rx_bds(struct bnx2x_fastpath *fp) |
| 1437 | { |
| 1438 | struct bnx2x *bp = fp->bp; |
| 1439 | int i; |
| 1440 | |
| 1441 | /* ring wasn't allocated */ |
| 1442 | if (fp->rx_buf_ring == NULL) |
| 1443 | return; |
| 1444 | |
| 1445 | for (i = 0; i < NUM_RX_BD; i++) { |
| 1446 | struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[i]; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1447 | u8 *data = rx_buf->data; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1448 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1449 | if (data == NULL) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1450 | continue; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1451 | dma_unmap_single(&bp->pdev->dev, |
| 1452 | dma_unmap_addr(rx_buf, mapping), |
| 1453 | fp->rx_buf_size, DMA_FROM_DEVICE); |
| 1454 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1455 | rx_buf->data = NULL; |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1456 | bnx2x_frag_free(fp, data); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1457 | } |
| 1458 | } |
| 1459 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1460 | static void bnx2x_free_rx_skbs_cnic(struct bnx2x *bp) |
| 1461 | { |
| 1462 | int j; |
| 1463 | |
| 1464 | for_each_rx_queue_cnic(bp, j) { |
| 1465 | bnx2x_free_rx_bds(&bp->fp[j]); |
| 1466 | } |
| 1467 | } |
| 1468 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1469 | static void bnx2x_free_rx_skbs(struct bnx2x *bp) |
| 1470 | { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1471 | int j; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1472 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1473 | for_each_eth_queue(bp, j) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1474 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1475 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1476 | bnx2x_free_rx_bds(fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1477 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1478 | if (!fp->disable_tpa) |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 1479 | bnx2x_free_tpa_pool(bp, fp, MAX_AGG_QS(bp)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1480 | } |
| 1481 | } |
| 1482 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1483 | void bnx2x_free_skbs_cnic(struct bnx2x *bp) |
| 1484 | { |
| 1485 | bnx2x_free_tx_skbs_cnic(bp); |
| 1486 | bnx2x_free_rx_skbs_cnic(bp); |
| 1487 | } |
| 1488 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1489 | void bnx2x_free_skbs(struct bnx2x *bp) |
| 1490 | { |
| 1491 | bnx2x_free_tx_skbs(bp); |
| 1492 | bnx2x_free_rx_skbs(bp); |
| 1493 | } |
| 1494 | |
Dmitry Kravkov | e3835b9 | 2011-03-06 10:50:44 +0000 | [diff] [blame] | 1495 | void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value) |
| 1496 | { |
| 1497 | /* load old values */ |
| 1498 | u32 mf_cfg = bp->mf_config[BP_VN(bp)]; |
| 1499 | |
| 1500 | if (value != bnx2x_extract_max_cfg(bp, mf_cfg)) { |
| 1501 | /* leave all but MAX value */ |
| 1502 | mf_cfg &= ~FUNC_MF_CFG_MAX_BW_MASK; |
| 1503 | |
| 1504 | /* set new MAX value */ |
| 1505 | mf_cfg |= (value << FUNC_MF_CFG_MAX_BW_SHIFT) |
| 1506 | & FUNC_MF_CFG_MAX_BW_MASK; |
| 1507 | |
| 1508 | bnx2x_fw_command(bp, DRV_MSG_CODE_SET_MF_BW, mf_cfg); |
| 1509 | } |
| 1510 | } |
| 1511 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1512 | /** |
| 1513 | * bnx2x_free_msix_irqs - free previously requested MSI-X IRQ vectors |
| 1514 | * |
| 1515 | * @bp: driver handle |
| 1516 | * @nvecs: number of vectors to be released |
| 1517 | */ |
| 1518 | static void bnx2x_free_msix_irqs(struct bnx2x *bp, int nvecs) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1519 | { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1520 | int i, offset = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1521 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1522 | if (nvecs == offset) |
| 1523 | return; |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1524 | |
| 1525 | /* VFs don't have a default SB */ |
| 1526 | if (IS_PF(bp)) { |
| 1527 | free_irq(bp->msix_table[offset].vector, bp->dev); |
| 1528 | DP(NETIF_MSG_IFDOWN, "released sp irq (%d)\n", |
| 1529 | bp->msix_table[offset].vector); |
| 1530 | offset++; |
| 1531 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1532 | |
| 1533 | if (CNIC_SUPPORT(bp)) { |
| 1534 | if (nvecs == offset) |
| 1535 | return; |
| 1536 | offset++; |
| 1537 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1538 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1539 | for_each_eth_queue(bp, i) { |
| 1540 | if (nvecs == offset) |
| 1541 | return; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1542 | DP(NETIF_MSG_IFDOWN, "about to release fp #%d->%d irq\n", |
| 1543 | i, bp->msix_table[offset].vector); |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1544 | |
| 1545 | free_irq(bp->msix_table[offset++].vector, &bp->fp[i]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1546 | } |
| 1547 | } |
| 1548 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1549 | void bnx2x_free_irq(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1550 | { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1551 | if (bp->flags & USING_MSIX_FLAG && |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1552 | !(bp->flags & USING_SINGLE_MSIX_FLAG)) { |
| 1553 | int nvecs = BNX2X_NUM_ETH_QUEUES(bp) + CNIC_SUPPORT(bp); |
| 1554 | |
| 1555 | /* vfs don't have a default status block */ |
| 1556 | if (IS_PF(bp)) |
| 1557 | nvecs++; |
| 1558 | |
| 1559 | bnx2x_free_msix_irqs(bp, nvecs); |
| 1560 | } else { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1561 | free_irq(bp->dev->irq, bp->dev); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1562 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1563 | } |
| 1564 | |
Merav Sicron | 0e8d2ec | 2012-06-19 07:48:30 +0000 | [diff] [blame] | 1565 | int bnx2x_enable_msix(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1566 | { |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1567 | int msix_vec = 0, i, rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1568 | |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1569 | /* VFs don't have a default status block */ |
| 1570 | if (IS_PF(bp)) { |
| 1571 | bp->msix_table[msix_vec].entry = msix_vec; |
| 1572 | BNX2X_DEV_INFO("msix_table[0].entry = %d (slowpath)\n", |
| 1573 | bp->msix_table[0].entry); |
| 1574 | msix_vec++; |
| 1575 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1576 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1577 | /* Cnic requires an msix vector for itself */ |
| 1578 | if (CNIC_SUPPORT(bp)) { |
| 1579 | bp->msix_table[msix_vec].entry = msix_vec; |
| 1580 | BNX2X_DEV_INFO("msix_table[%d].entry = %d (CNIC)\n", |
| 1581 | msix_vec, bp->msix_table[msix_vec].entry); |
| 1582 | msix_vec++; |
| 1583 | } |
| 1584 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1585 | /* We need separate vectors for ETH queues only (not FCoE) */ |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1586 | for_each_eth_queue(bp, i) { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1587 | bp->msix_table[msix_vec].entry = msix_vec; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1588 | BNX2X_DEV_INFO("msix_table[%d].entry = %d (fastpath #%u)\n", |
| 1589 | msix_vec, msix_vec, i); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1590 | msix_vec++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1591 | } |
| 1592 | |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1593 | DP(BNX2X_MSG_SP, "about to request enable msix with %d vectors\n", |
| 1594 | msix_vec); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1595 | |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1596 | rc = pci_enable_msix(bp->pdev, &bp->msix_table[0], msix_vec); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1597 | |
| 1598 | /* |
| 1599 | * reconfigure number of tx/rx queues according to available |
| 1600 | * MSI-X vectors |
| 1601 | */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1602 | if (rc >= BNX2X_MIN_MSIX_VEC_CNT(bp)) { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1603 | /* how less vectors we will have? */ |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1604 | int diff = msix_vec - rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1605 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1606 | BNX2X_DEV_INFO("Trying to use less MSI-X vectors: %d\n", rc); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1607 | |
| 1608 | rc = pci_enable_msix(bp->pdev, &bp->msix_table[0], rc); |
| 1609 | |
| 1610 | if (rc) { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1611 | BNX2X_DEV_INFO("MSI-X is not attainable rc %d\n", rc); |
| 1612 | goto no_msix; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1613 | } |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1614 | /* |
| 1615 | * decrease number of queues by number of unallocated entries |
| 1616 | */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1617 | bp->num_ethernet_queues -= diff; |
| 1618 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1619 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1620 | BNX2X_DEV_INFO("New queue configuration set: %d\n", |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1621 | bp->num_queues); |
| 1622 | } else if (rc > 0) { |
| 1623 | /* Get by with single vector */ |
| 1624 | rc = pci_enable_msix(bp->pdev, &bp->msix_table[0], 1); |
| 1625 | if (rc) { |
| 1626 | BNX2X_DEV_INFO("Single MSI-X is not attainable rc %d\n", |
| 1627 | rc); |
| 1628 | goto no_msix; |
| 1629 | } |
| 1630 | |
| 1631 | BNX2X_DEV_INFO("Using single MSI-X vector\n"); |
| 1632 | bp->flags |= USING_SINGLE_MSIX_FLAG; |
| 1633 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1634 | BNX2X_DEV_INFO("set number of queues to 1\n"); |
| 1635 | bp->num_ethernet_queues = 1; |
| 1636 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1637 | } else if (rc < 0) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1638 | BNX2X_DEV_INFO("MSI-X is not attainable rc %d\n", rc); |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1639 | goto no_msix; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1640 | } |
| 1641 | |
| 1642 | bp->flags |= USING_MSIX_FLAG; |
| 1643 | |
| 1644 | return 0; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1645 | |
| 1646 | no_msix: |
| 1647 | /* fall to INTx if not enough memory */ |
| 1648 | if (rc == -ENOMEM) |
| 1649 | bp->flags |= DISABLE_MSI_FLAG; |
| 1650 | |
| 1651 | return rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1652 | } |
| 1653 | |
| 1654 | static int bnx2x_req_msix_irqs(struct bnx2x *bp) |
| 1655 | { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1656 | int i, rc, offset = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1657 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1658 | /* no default status block for vf */ |
| 1659 | if (IS_PF(bp)) { |
| 1660 | rc = request_irq(bp->msix_table[offset++].vector, |
| 1661 | bnx2x_msix_sp_int, 0, |
| 1662 | bp->dev->name, bp->dev); |
| 1663 | if (rc) { |
| 1664 | BNX2X_ERR("request sp irq failed\n"); |
| 1665 | return -EBUSY; |
| 1666 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1667 | } |
| 1668 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1669 | if (CNIC_SUPPORT(bp)) |
| 1670 | offset++; |
| 1671 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1672 | for_each_eth_queue(bp, i) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1673 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
| 1674 | snprintf(fp->name, sizeof(fp->name), "%s-fp-%d", |
| 1675 | bp->dev->name, i); |
| 1676 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1677 | rc = request_irq(bp->msix_table[offset].vector, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1678 | bnx2x_msix_fp_int, 0, fp->name, fp); |
| 1679 | if (rc) { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1680 | BNX2X_ERR("request fp #%d irq (%d) failed rc %d\n", i, |
| 1681 | bp->msix_table[offset].vector, rc); |
| 1682 | bnx2x_free_msix_irqs(bp, offset); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1683 | return -EBUSY; |
| 1684 | } |
| 1685 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1686 | offset++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1687 | } |
| 1688 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1689 | i = BNX2X_NUM_ETH_QUEUES(bp); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1690 | if (IS_PF(bp)) { |
| 1691 | offset = 1 + CNIC_SUPPORT(bp); |
| 1692 | netdev_info(bp->dev, |
| 1693 | "using MSI-X IRQs: sp %d fp[%d] %d ... fp[%d] %d\n", |
| 1694 | bp->msix_table[0].vector, |
| 1695 | 0, bp->msix_table[offset].vector, |
| 1696 | i - 1, bp->msix_table[offset + i - 1].vector); |
| 1697 | } else { |
| 1698 | offset = CNIC_SUPPORT(bp); |
| 1699 | netdev_info(bp->dev, |
| 1700 | "using MSI-X IRQs: fp[%d] %d ... fp[%d] %d\n", |
| 1701 | 0, bp->msix_table[offset].vector, |
| 1702 | i - 1, bp->msix_table[offset + i - 1].vector); |
| 1703 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1704 | return 0; |
| 1705 | } |
| 1706 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1707 | int bnx2x_enable_msi(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1708 | { |
| 1709 | int rc; |
| 1710 | |
| 1711 | rc = pci_enable_msi(bp->pdev); |
| 1712 | if (rc) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1713 | BNX2X_DEV_INFO("MSI is not attainable\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1714 | return -1; |
| 1715 | } |
| 1716 | bp->flags |= USING_MSI_FLAG; |
| 1717 | |
| 1718 | return 0; |
| 1719 | } |
| 1720 | |
| 1721 | static int bnx2x_req_irq(struct bnx2x *bp) |
| 1722 | { |
| 1723 | unsigned long flags; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1724 | unsigned int irq; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1725 | |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1726 | if (bp->flags & (USING_MSI_FLAG | USING_MSIX_FLAG)) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1727 | flags = 0; |
| 1728 | else |
| 1729 | flags = IRQF_SHARED; |
| 1730 | |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1731 | if (bp->flags & USING_MSIX_FLAG) |
| 1732 | irq = bp->msix_table[0].vector; |
| 1733 | else |
| 1734 | irq = bp->pdev->irq; |
| 1735 | |
| 1736 | return request_irq(irq, bnx2x_interrupt, flags, bp->dev->name, bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1737 | } |
| 1738 | |
Yuval Mintz | c957d09 | 2013-06-25 08:50:11 +0300 | [diff] [blame] | 1739 | static int bnx2x_setup_irqs(struct bnx2x *bp) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1740 | { |
| 1741 | int rc = 0; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1742 | if (bp->flags & USING_MSIX_FLAG && |
| 1743 | !(bp->flags & USING_SINGLE_MSIX_FLAG)) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1744 | rc = bnx2x_req_msix_irqs(bp); |
| 1745 | if (rc) |
| 1746 | return rc; |
| 1747 | } else { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1748 | rc = bnx2x_req_irq(bp); |
| 1749 | if (rc) { |
| 1750 | BNX2X_ERR("IRQ request failed rc %d, aborting\n", rc); |
| 1751 | return rc; |
| 1752 | } |
| 1753 | if (bp->flags & USING_MSI_FLAG) { |
| 1754 | bp->dev->irq = bp->pdev->irq; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1755 | netdev_info(bp->dev, "using MSI IRQ %d\n", |
| 1756 | bp->dev->irq); |
| 1757 | } |
| 1758 | if (bp->flags & USING_MSIX_FLAG) { |
| 1759 | bp->dev->irq = bp->msix_table[0].vector; |
| 1760 | netdev_info(bp->dev, "using MSIX IRQ %d\n", |
| 1761 | bp->dev->irq); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1762 | } |
| 1763 | } |
| 1764 | |
| 1765 | return 0; |
| 1766 | } |
| 1767 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1768 | static void bnx2x_napi_enable_cnic(struct bnx2x *bp) |
| 1769 | { |
| 1770 | int i; |
| 1771 | |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1772 | for_each_rx_queue_cnic(bp, i) { |
| 1773 | bnx2x_fp_init_lock(&bp->fp[i]); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1774 | napi_enable(&bnx2x_fp(bp, i, napi)); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1775 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1776 | } |
| 1777 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1778 | static void bnx2x_napi_enable(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1779 | { |
| 1780 | int i; |
| 1781 | |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1782 | for_each_eth_queue(bp, i) { |
| 1783 | bnx2x_fp_init_lock(&bp->fp[i]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1784 | napi_enable(&bnx2x_fp(bp, i, napi)); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1785 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1786 | } |
| 1787 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1788 | static void bnx2x_napi_disable_cnic(struct bnx2x *bp) |
| 1789 | { |
| 1790 | int i; |
| 1791 | |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1792 | local_bh_disable(); |
| 1793 | for_each_rx_queue_cnic(bp, i) { |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1794 | napi_disable(&bnx2x_fp(bp, i, napi)); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1795 | while (!bnx2x_fp_lock_napi(&bp->fp[i])) |
| 1796 | mdelay(1); |
| 1797 | } |
| 1798 | local_bh_enable(); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1799 | } |
| 1800 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1801 | static void bnx2x_napi_disable(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1802 | { |
| 1803 | int i; |
| 1804 | |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1805 | local_bh_disable(); |
| 1806 | for_each_eth_queue(bp, i) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1807 | napi_disable(&bnx2x_fp(bp, i, napi)); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 1808 | while (!bnx2x_fp_lock_napi(&bp->fp[i])) |
| 1809 | mdelay(1); |
| 1810 | } |
| 1811 | local_bh_enable(); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1812 | } |
| 1813 | |
| 1814 | void bnx2x_netif_start(struct bnx2x *bp) |
| 1815 | { |
Dmitry Kravkov | 4b7ed89 | 2011-06-14 01:32:53 +0000 | [diff] [blame] | 1816 | if (netif_running(bp->dev)) { |
| 1817 | bnx2x_napi_enable(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1818 | if (CNIC_LOADED(bp)) |
| 1819 | bnx2x_napi_enable_cnic(bp); |
Dmitry Kravkov | 4b7ed89 | 2011-06-14 01:32:53 +0000 | [diff] [blame] | 1820 | bnx2x_int_enable(bp); |
| 1821 | if (bp->state == BNX2X_STATE_OPEN) |
| 1822 | netif_tx_wake_all_queues(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1823 | } |
| 1824 | } |
| 1825 | |
| 1826 | void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw) |
| 1827 | { |
| 1828 | bnx2x_int_disable_sync(bp, disable_hw); |
| 1829 | bnx2x_napi_disable(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1830 | if (CNIC_LOADED(bp)) |
| 1831 | bnx2x_napi_disable_cnic(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1832 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1833 | |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1834 | u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb) |
| 1835 | { |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1836 | struct bnx2x *bp = netdev_priv(dev); |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1837 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1838 | if (CNIC_LOADED(bp) && !NO_FCOE(bp)) { |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1839 | struct ethhdr *hdr = (struct ethhdr *)skb->data; |
| 1840 | u16 ether_type = ntohs(hdr->h_proto); |
| 1841 | |
| 1842 | /* Skip VLAN tag if present */ |
| 1843 | if (ether_type == ETH_P_8021Q) { |
| 1844 | struct vlan_ethhdr *vhdr = |
| 1845 | (struct vlan_ethhdr *)skb->data; |
| 1846 | |
| 1847 | ether_type = ntohs(vhdr->h_vlan_encapsulated_proto); |
| 1848 | } |
| 1849 | |
| 1850 | /* If ethertype is FCoE or FIP - use FCoE ring */ |
| 1851 | if ((ether_type == ETH_P_FCOE) || (ether_type == ETH_P_FIP)) |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1852 | return bnx2x_fcoe_tx(bp, txq_index); |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1853 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1854 | |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1855 | /* select a non-FCoE queue */ |
Eric Dumazet | ada7c19 | 2013-05-31 14:32:55 +0000 | [diff] [blame] | 1856 | return __netdev_pick_tx(dev, skb) % BNX2X_NUM_ETH_QUEUES(bp); |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1857 | } |
| 1858 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1859 | void bnx2x_set_num_queues(struct bnx2x *bp) |
| 1860 | { |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1861 | /* RSS queues */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1862 | bp->num_ethernet_queues = bnx2x_calc_num_queues(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1863 | |
Barak Witkowski | a334872 | 2012-04-23 03:04:46 +0000 | [diff] [blame] | 1864 | /* override in STORAGE SD modes */ |
| 1865 | if (IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp)) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1866 | bp->num_ethernet_queues = 1; |
| 1867 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1868 | /* Add special queues */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1869 | bp->num_cnic_queues = CNIC_SUPPORT(bp); /* For FCOE */ |
| 1870 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 1871 | |
| 1872 | 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] | 1873 | } |
| 1874 | |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1875 | /** |
| 1876 | * bnx2x_set_real_num_queues - configure netdev->real_num_[tx,rx]_queues |
| 1877 | * |
| 1878 | * @bp: Driver handle |
| 1879 | * |
| 1880 | * We currently support for at most 16 Tx queues for each CoS thus we will |
| 1881 | * allocate a multiple of 16 for ETH L2 rings according to the value of the |
| 1882 | * bp->max_cos. |
| 1883 | * |
| 1884 | * If there is an FCoE L2 queue the appropriate Tx queue will have the next |
| 1885 | * index after all ETH L2 indices. |
| 1886 | * |
| 1887 | * If the actual number of Tx queues (for each CoS) is less than 16 then there |
| 1888 | * 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] | 1889 | * 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] | 1890 | * |
| 1891 | * The proper configuration of skb->queue_mapping is handled by |
| 1892 | * bnx2x_select_queue() and __skb_tx_hash(). |
| 1893 | * |
| 1894 | * bnx2x_setup_tc() takes care of the proper TC mappings so that __skb_tx_hash() |
| 1895 | * will return a proper Tx index if TC is enabled (netdev->num_tc > 0). |
| 1896 | */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1897 | 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] | 1898 | { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1899 | int rc, tx, rx; |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1900 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 1901 | tx = BNX2X_NUM_ETH_QUEUES(bp) * bp->max_cos; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1902 | rx = BNX2X_NUM_ETH_QUEUES(bp); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1903 | |
| 1904 | /* account for fcoe queue */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1905 | if (include_cnic && !NO_FCOE(bp)) { |
| 1906 | rx++; |
| 1907 | tx++; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1908 | } |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1909 | |
| 1910 | rc = netif_set_real_num_tx_queues(bp->dev, tx); |
| 1911 | if (rc) { |
| 1912 | BNX2X_ERR("Failed to set real number of Tx queues: %d\n", rc); |
| 1913 | return rc; |
| 1914 | } |
| 1915 | rc = netif_set_real_num_rx_queues(bp->dev, rx); |
| 1916 | if (rc) { |
| 1917 | BNX2X_ERR("Failed to set real number of Rx queues: %d\n", rc); |
| 1918 | return rc; |
| 1919 | } |
| 1920 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1921 | 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] | 1922 | tx, rx); |
| 1923 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1924 | return rc; |
| 1925 | } |
| 1926 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1927 | static void bnx2x_set_rx_buf_size(struct bnx2x *bp) |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1928 | { |
| 1929 | int i; |
| 1930 | |
| 1931 | for_each_queue(bp, i) { |
| 1932 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1933 | u32 mtu; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1934 | |
| 1935 | /* Always use a mini-jumbo MTU for the FCoE L2 ring */ |
| 1936 | if (IS_FCOE_IDX(i)) |
| 1937 | /* |
| 1938 | * Although there are no IP frames expected to arrive to |
| 1939 | * this ring we still want to add an |
| 1940 | * IP_HEADER_ALIGNMENT_PADDING to prevent a buffer |
| 1941 | * overrun attack. |
| 1942 | */ |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1943 | mtu = BNX2X_FCOE_MINI_JUMBO_MTU; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1944 | else |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1945 | mtu = bp->dev->mtu; |
| 1946 | fp->rx_buf_size = BNX2X_FW_RX_ALIGN_START + |
| 1947 | IP_HEADER_ALIGNMENT_PADDING + |
| 1948 | ETH_OVREHEAD + |
| 1949 | mtu + |
| 1950 | BNX2X_FW_RX_ALIGN_END; |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 1951 | /* Note : rx_buf_size doesn't take into account NET_SKB_PAD */ |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1952 | if (fp->rx_buf_size + NET_SKB_PAD <= PAGE_SIZE) |
| 1953 | fp->rx_frag_size = fp->rx_buf_size + NET_SKB_PAD; |
| 1954 | else |
| 1955 | fp->rx_frag_size = 0; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1956 | } |
| 1957 | } |
| 1958 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 1959 | static int bnx2x_init_rss(struct bnx2x *bp) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1960 | { |
| 1961 | int i; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1962 | u8 num_eth_queues = BNX2X_NUM_ETH_QUEUES(bp); |
| 1963 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 1964 | /* Prepare the initial contents for the indirection table if RSS is |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1965 | * enabled |
| 1966 | */ |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 1967 | for (i = 0; i < sizeof(bp->rss_conf_obj.ind_table); i++) |
| 1968 | bp->rss_conf_obj.ind_table[i] = |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1969 | bp->fp->cl_id + |
| 1970 | ethtool_rxfh_indir_default(i, num_eth_queues); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1971 | |
| 1972 | /* |
| 1973 | * For 57710 and 57711 SEARCHER configuration (rss_keys) is |
| 1974 | * per-port, so if explicit configuration is needed , do it only |
| 1975 | * for a PMF. |
| 1976 | * |
| 1977 | * For 57712 and newer on the other hand it's a per-function |
| 1978 | * configuration. |
| 1979 | */ |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 1980 | 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] | 1981 | } |
| 1982 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 1983 | int bnx2x_rss(struct bnx2x *bp, struct bnx2x_rss_config_obj *rss_obj, |
| 1984 | bool config_hash, bool enable) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1985 | { |
Yuval Mintz | 3b60306 | 2012-03-18 10:33:39 +0000 | [diff] [blame] | 1986 | struct bnx2x_config_rss_params params = {NULL}; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1987 | |
| 1988 | /* Although RSS is meaningless when there is a single HW queue we |
| 1989 | * still need it enabled in order to have HW Rx hash generated. |
| 1990 | * |
| 1991 | * if (!is_eth_multi(bp)) |
| 1992 | * bp->multi_mode = ETH_RSS_MODE_DISABLED; |
| 1993 | */ |
| 1994 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1995 | params.rss_obj = rss_obj; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1996 | |
| 1997 | __set_bit(RAMROD_COMP_WAIT, ¶ms.ramrod_flags); |
| 1998 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 1999 | if (enable) { |
| 2000 | __set_bit(BNX2X_RSS_MODE_REGULAR, ¶ms.rss_flags); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2001 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2002 | /* RSS configuration */ |
| 2003 | __set_bit(BNX2X_RSS_IPV4, ¶ms.rss_flags); |
| 2004 | __set_bit(BNX2X_RSS_IPV4_TCP, ¶ms.rss_flags); |
| 2005 | __set_bit(BNX2X_RSS_IPV6, ¶ms.rss_flags); |
| 2006 | __set_bit(BNX2X_RSS_IPV6_TCP, ¶ms.rss_flags); |
| 2007 | if (rss_obj->udp_rss_v4) |
| 2008 | __set_bit(BNX2X_RSS_IPV4_UDP, ¶ms.rss_flags); |
| 2009 | if (rss_obj->udp_rss_v6) |
| 2010 | __set_bit(BNX2X_RSS_IPV6_UDP, ¶ms.rss_flags); |
| 2011 | } else { |
| 2012 | __set_bit(BNX2X_RSS_MODE_DISABLED, ¶ms.rss_flags); |
| 2013 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2014 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 2015 | /* Hash bits */ |
| 2016 | params.rss_result_mask = MULTI_MASK; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2017 | |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 2018 | memcpy(params.ind_table, rss_obj->ind_table, sizeof(params.ind_table)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2019 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 2020 | if (config_hash) { |
| 2021 | /* RSS keys */ |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2022 | prandom_bytes(params.rss_key, T_ETH_RSS_KEY * 4); |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 2023 | __set_bit(BNX2X_RSS_SET_SRCH, ¶ms.rss_flags); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2024 | } |
| 2025 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2026 | if (IS_PF(bp)) |
| 2027 | return bnx2x_config_rss(bp, ¶ms); |
| 2028 | else |
| 2029 | return bnx2x_vfpf_config_rss(bp, ¶ms); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2030 | } |
| 2031 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2032 | static int bnx2x_init_hw(struct bnx2x *bp, u32 load_code) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2033 | { |
Yuval Mintz | 3b60306 | 2012-03-18 10:33:39 +0000 | [diff] [blame] | 2034 | struct bnx2x_func_state_params func_params = {NULL}; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2035 | |
| 2036 | /* Prepare parameters for function state transitions */ |
| 2037 | __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags); |
| 2038 | |
| 2039 | func_params.f_obj = &bp->func_obj; |
| 2040 | func_params.cmd = BNX2X_F_CMD_HW_INIT; |
| 2041 | |
| 2042 | func_params.params.hw_init.load_phase = load_code; |
| 2043 | |
| 2044 | return bnx2x_func_state_change(bp, &func_params); |
| 2045 | } |
| 2046 | |
| 2047 | /* |
| 2048 | * Cleans the object that have internal lists without sending |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2049 | * ramrods. Should be run when interrupts are disabled. |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2050 | */ |
Yuval Mintz | 7fa6f340 | 2013-03-20 05:21:28 +0000 | [diff] [blame] | 2051 | void bnx2x_squeeze_objects(struct bnx2x *bp) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2052 | { |
| 2053 | int rc; |
| 2054 | unsigned long ramrod_flags = 0, vlan_mac_flags = 0; |
Yuval Mintz | 3b60306 | 2012-03-18 10:33:39 +0000 | [diff] [blame] | 2055 | struct bnx2x_mcast_ramrod_params rparam = {NULL}; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2056 | struct bnx2x_vlan_mac_obj *mac_obj = &bp->sp_objs->mac_obj; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2057 | |
| 2058 | /***************** Cleanup MACs' object first *************************/ |
| 2059 | |
| 2060 | /* Wait for completion of requested */ |
| 2061 | __set_bit(RAMROD_COMP_WAIT, &ramrod_flags); |
| 2062 | /* Perform a dry cleanup */ |
| 2063 | __set_bit(RAMROD_DRV_CLR_ONLY, &ramrod_flags); |
| 2064 | |
| 2065 | /* Clean ETH primary MAC */ |
| 2066 | __set_bit(BNX2X_ETH_MAC, &vlan_mac_flags); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2067 | 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] | 2068 | &ramrod_flags); |
| 2069 | if (rc != 0) |
| 2070 | BNX2X_ERR("Failed to clean ETH MACs: %d\n", rc); |
| 2071 | |
| 2072 | /* Cleanup UC list */ |
| 2073 | vlan_mac_flags = 0; |
| 2074 | __set_bit(BNX2X_UC_LIST_MAC, &vlan_mac_flags); |
| 2075 | rc = mac_obj->delete_all(bp, mac_obj, &vlan_mac_flags, |
| 2076 | &ramrod_flags); |
| 2077 | if (rc != 0) |
| 2078 | BNX2X_ERR("Failed to clean UC list MACs: %d\n", rc); |
| 2079 | |
| 2080 | /***************** Now clean mcast object *****************************/ |
| 2081 | rparam.mcast_obj = &bp->mcast_obj; |
| 2082 | __set_bit(RAMROD_DRV_CLR_ONLY, &rparam.ramrod_flags); |
| 2083 | |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2084 | /* Add a DEL command... - Since we're doing a driver cleanup only, |
| 2085 | * we take a lock surrounding both the initial send and the CONTs, |
| 2086 | * as we don't want a true completion to disrupt us in the middle. |
| 2087 | */ |
| 2088 | netif_addr_lock_bh(bp->dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2089 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_DEL); |
| 2090 | if (rc < 0) |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2091 | BNX2X_ERR("Failed to add a new DEL command to a multi-cast object: %d\n", |
| 2092 | rc); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2093 | |
| 2094 | /* ...and wait until all pending commands are cleared */ |
| 2095 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); |
| 2096 | while (rc != 0) { |
| 2097 | if (rc < 0) { |
| 2098 | BNX2X_ERR("Failed to clean multi-cast object: %d\n", |
| 2099 | rc); |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2100 | netif_addr_unlock_bh(bp->dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2101 | return; |
| 2102 | } |
| 2103 | |
| 2104 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); |
| 2105 | } |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2106 | netif_addr_unlock_bh(bp->dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2107 | } |
| 2108 | |
| 2109 | #ifndef BNX2X_STOP_ON_ERROR |
| 2110 | #define LOAD_ERROR_EXIT(bp, label) \ |
| 2111 | do { \ |
| 2112 | (bp)->state = BNX2X_STATE_ERROR; \ |
| 2113 | goto label; \ |
| 2114 | } while (0) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2115 | |
| 2116 | #define LOAD_ERROR_EXIT_CNIC(bp, label) \ |
| 2117 | do { \ |
| 2118 | bp->cnic_loaded = false; \ |
| 2119 | goto label; \ |
| 2120 | } while (0) |
| 2121 | #else /*BNX2X_STOP_ON_ERROR*/ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2122 | #define LOAD_ERROR_EXIT(bp, label) \ |
| 2123 | do { \ |
| 2124 | (bp)->state = BNX2X_STATE_ERROR; \ |
| 2125 | (bp)->panic = 1; \ |
| 2126 | return -EBUSY; \ |
| 2127 | } while (0) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2128 | #define LOAD_ERROR_EXIT_CNIC(bp, label) \ |
| 2129 | do { \ |
| 2130 | bp->cnic_loaded = false; \ |
| 2131 | (bp)->panic = 1; \ |
| 2132 | return -EBUSY; \ |
| 2133 | } while (0) |
| 2134 | #endif /*BNX2X_STOP_ON_ERROR*/ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2135 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2136 | static void bnx2x_free_fw_stats_mem(struct bnx2x *bp) |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2137 | { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2138 | BNX2X_PCI_FREE(bp->fw_stats, bp->fw_stats_mapping, |
| 2139 | bp->fw_stats_data_sz + bp->fw_stats_req_sz); |
| 2140 | return; |
| 2141 | } |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2142 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2143 | static int bnx2x_alloc_fw_stats_mem(struct bnx2x *bp) |
| 2144 | { |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2145 | int num_groups, vf_headroom = 0; |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2146 | int is_fcoe_stats = NO_FCOE(bp) ? 0 : 1; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2147 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2148 | /* number of queues for statistics is number of eth queues + FCoE */ |
| 2149 | u8 num_queue_stats = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe_stats; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2150 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2151 | /* Total number of FW statistics requests = |
| 2152 | * 1 for port stats + 1 for PF stats + potential 2 for FCoE (fcoe proper |
| 2153 | * and fcoe l2 queue) stats + num of queues (which includes another 1 |
| 2154 | * for fcoe l2 queue if applicable) |
| 2155 | */ |
| 2156 | bp->fw_stats_num = 2 + is_fcoe_stats + num_queue_stats; |
| 2157 | |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2158 | /* vf stats appear in the request list, but their data is allocated by |
| 2159 | * the VFs themselves. We don't include them in the bp->fw_stats_num as |
| 2160 | * it is used to determine where to place the vf stats queries in the |
| 2161 | * request struct |
| 2162 | */ |
| 2163 | if (IS_SRIOV(bp)) |
Ariel Elior | 6411280 | 2013-01-07 00:50:23 +0000 | [diff] [blame] | 2164 | vf_headroom = bnx2x_vf_headroom(bp); |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2165 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2166 | /* Request is built from stats_query_header and an array of |
| 2167 | * stats_query_cmd_group each of which contains |
| 2168 | * STATS_QUERY_CMD_COUNT rules. The real number or requests is |
| 2169 | * configured in the stats_query_header. |
| 2170 | */ |
| 2171 | num_groups = |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2172 | (((bp->fw_stats_num + vf_headroom) / STATS_QUERY_CMD_COUNT) + |
| 2173 | (((bp->fw_stats_num + vf_headroom) % STATS_QUERY_CMD_COUNT) ? |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2174 | 1 : 0)); |
| 2175 | |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2176 | DP(BNX2X_MSG_SP, "stats fw_stats_num %d, vf headroom %d, num_groups %d\n", |
| 2177 | bp->fw_stats_num, vf_headroom, num_groups); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2178 | bp->fw_stats_req_sz = sizeof(struct stats_query_header) + |
| 2179 | num_groups * sizeof(struct stats_query_cmd_group); |
| 2180 | |
| 2181 | /* Data for statistics requests + stats_counter |
| 2182 | * stats_counter holds per-STORM counters that are incremented |
| 2183 | * when STORM has finished with the current request. |
| 2184 | * memory for FCoE offloaded statistics are counted anyway, |
| 2185 | * even if they will not be sent. |
| 2186 | * VF stats are not accounted for here as the data of VF stats is stored |
| 2187 | * in memory allocated by the VF, not here. |
| 2188 | */ |
| 2189 | bp->fw_stats_data_sz = sizeof(struct per_port_stats) + |
| 2190 | sizeof(struct per_pf_stats) + |
| 2191 | sizeof(struct fcoe_statistics_params) + |
| 2192 | sizeof(struct per_queue_stats) * num_queue_stats + |
| 2193 | sizeof(struct stats_counter); |
| 2194 | |
| 2195 | BNX2X_PCI_ALLOC(bp->fw_stats, &bp->fw_stats_mapping, |
| 2196 | bp->fw_stats_data_sz + bp->fw_stats_req_sz); |
| 2197 | |
| 2198 | /* Set shortcuts */ |
| 2199 | bp->fw_stats_req = (struct bnx2x_fw_stats_req *)bp->fw_stats; |
| 2200 | bp->fw_stats_req_mapping = bp->fw_stats_mapping; |
| 2201 | bp->fw_stats_data = (struct bnx2x_fw_stats_data *) |
| 2202 | ((u8 *)bp->fw_stats + bp->fw_stats_req_sz); |
| 2203 | bp->fw_stats_data_mapping = bp->fw_stats_mapping + |
| 2204 | bp->fw_stats_req_sz; |
| 2205 | |
Yuval Mintz | 6bf07b8 | 2013-06-02 00:06:20 +0000 | [diff] [blame] | 2206 | 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] | 2207 | U64_HI(bp->fw_stats_req_mapping), |
| 2208 | U64_LO(bp->fw_stats_req_mapping)); |
Yuval Mintz | 6bf07b8 | 2013-06-02 00:06:20 +0000 | [diff] [blame] | 2209 | 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] | 2210 | U64_HI(bp->fw_stats_data_mapping), |
| 2211 | U64_LO(bp->fw_stats_data_mapping)); |
| 2212 | return 0; |
| 2213 | |
| 2214 | alloc_mem_err: |
| 2215 | bnx2x_free_fw_stats_mem(bp); |
| 2216 | BNX2X_ERR("Can't allocate FW stats memory\n"); |
| 2217 | return -ENOMEM; |
| 2218 | } |
| 2219 | |
| 2220 | /* send load request to mcp and analyze response */ |
| 2221 | static int bnx2x_nic_load_request(struct bnx2x *bp, u32 *load_code) |
| 2222 | { |
Dmitry Kravkov | 178135c | 2013-05-22 21:21:50 +0000 | [diff] [blame] | 2223 | u32 param; |
| 2224 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2225 | /* init fw_seq */ |
| 2226 | bp->fw_seq = |
| 2227 | (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_mb_header) & |
| 2228 | DRV_MSG_SEQ_NUMBER_MASK); |
| 2229 | BNX2X_DEV_INFO("fw_seq 0x%08x\n", bp->fw_seq); |
| 2230 | |
| 2231 | /* Get current FW pulse sequence */ |
| 2232 | bp->fw_drv_pulse_wr_seq = |
| 2233 | (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_pulse_mb) & |
| 2234 | DRV_PULSE_SEQ_MASK); |
| 2235 | BNX2X_DEV_INFO("drv_pulse 0x%x\n", bp->fw_drv_pulse_wr_seq); |
| 2236 | |
Dmitry Kravkov | 178135c | 2013-05-22 21:21:50 +0000 | [diff] [blame] | 2237 | param = DRV_MSG_CODE_LOAD_REQ_WITH_LFA; |
| 2238 | |
| 2239 | if (IS_MF_SD(bp) && bnx2x_port_after_undi(bp)) |
| 2240 | param |= DRV_MSG_CODE_LOAD_REQ_FORCE_LFA; |
| 2241 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2242 | /* load request */ |
Dmitry Kravkov | 178135c | 2013-05-22 21:21:50 +0000 | [diff] [blame] | 2243 | (*load_code) = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ, param); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2244 | |
| 2245 | /* if mcp fails to respond we must abort */ |
| 2246 | if (!(*load_code)) { |
| 2247 | BNX2X_ERR("MCP response failure, aborting\n"); |
| 2248 | return -EBUSY; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2249 | } |
| 2250 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2251 | /* If mcp refused (e.g. other port is in diagnostic mode) we |
| 2252 | * must abort |
| 2253 | */ |
| 2254 | if ((*load_code) == FW_MSG_CODE_DRV_LOAD_REFUSED) { |
| 2255 | BNX2X_ERR("MCP refused load request, aborting\n"); |
| 2256 | return -EBUSY; |
| 2257 | } |
| 2258 | return 0; |
| 2259 | } |
| 2260 | |
| 2261 | /* check whether another PF has already loaded FW to chip. In |
| 2262 | * virtualized environments a pf from another VM may have already |
| 2263 | * initialized the device including loading FW |
| 2264 | */ |
| 2265 | int bnx2x_nic_load_analyze_req(struct bnx2x *bp, u32 load_code) |
| 2266 | { |
| 2267 | /* is another pf loaded on this engine? */ |
| 2268 | if (load_code != FW_MSG_CODE_DRV_LOAD_COMMON_CHIP && |
| 2269 | load_code != FW_MSG_CODE_DRV_LOAD_COMMON) { |
| 2270 | /* build my FW version dword */ |
| 2271 | u32 my_fw = (BCM_5710_FW_MAJOR_VERSION) + |
| 2272 | (BCM_5710_FW_MINOR_VERSION << 8) + |
| 2273 | (BCM_5710_FW_REVISION_VERSION << 16) + |
| 2274 | (BCM_5710_FW_ENGINEERING_VERSION << 24); |
| 2275 | |
| 2276 | /* read loaded FW from chip */ |
| 2277 | u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM); |
| 2278 | |
| 2279 | DP(BNX2X_MSG_SP, "loaded fw %x, my fw %x\n", |
| 2280 | loaded_fw, my_fw); |
| 2281 | |
| 2282 | /* abort nic load if version mismatch */ |
| 2283 | if (my_fw != loaded_fw) { |
Yuval Mintz | 6bf07b8 | 2013-06-02 00:06:20 +0000 | [diff] [blame] | 2284 | BNX2X_ERR("bnx2x with FW %x was already loaded which mismatches my %x FW. Aborting\n", |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2285 | loaded_fw, my_fw); |
| 2286 | return -EBUSY; |
| 2287 | } |
| 2288 | } |
| 2289 | return 0; |
| 2290 | } |
| 2291 | |
| 2292 | /* returns the "mcp load_code" according to global load_count array */ |
| 2293 | static int bnx2x_nic_load_no_mcp(struct bnx2x *bp, int port) |
| 2294 | { |
| 2295 | int path = BP_PATH(bp); |
| 2296 | |
| 2297 | DP(NETIF_MSG_IFUP, "NO MCP - load counts[%d] %d, %d, %d\n", |
| 2298 | path, load_count[path][0], load_count[path][1], |
| 2299 | load_count[path][2]); |
| 2300 | load_count[path][0]++; |
| 2301 | load_count[path][1 + port]++; |
| 2302 | DP(NETIF_MSG_IFUP, "NO MCP - new load counts[%d] %d, %d, %d\n", |
| 2303 | path, load_count[path][0], load_count[path][1], |
| 2304 | load_count[path][2]); |
| 2305 | if (load_count[path][0] == 1) |
| 2306 | return FW_MSG_CODE_DRV_LOAD_COMMON; |
| 2307 | else if (load_count[path][1 + port] == 1) |
| 2308 | return FW_MSG_CODE_DRV_LOAD_PORT; |
| 2309 | else |
| 2310 | return FW_MSG_CODE_DRV_LOAD_FUNCTION; |
| 2311 | } |
| 2312 | |
| 2313 | /* mark PMF if applicable */ |
| 2314 | static void bnx2x_nic_load_pmf(struct bnx2x *bp, u32 load_code) |
| 2315 | { |
| 2316 | if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) || |
| 2317 | (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP) || |
| 2318 | (load_code == FW_MSG_CODE_DRV_LOAD_PORT)) { |
| 2319 | bp->port.pmf = 1; |
| 2320 | /* We need the barrier to ensure the ordering between the |
| 2321 | * writing to bp->port.pmf here and reading it from the |
| 2322 | * bnx2x_periodic_task(). |
| 2323 | */ |
| 2324 | smp_mb(); |
| 2325 | } else { |
| 2326 | bp->port.pmf = 0; |
| 2327 | } |
| 2328 | |
| 2329 | DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf); |
| 2330 | } |
| 2331 | |
| 2332 | static void bnx2x_nic_load_afex_dcc(struct bnx2x *bp, int load_code) |
| 2333 | { |
| 2334 | if (((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) || |
| 2335 | (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP)) && |
| 2336 | (bp->common.shmem2_base)) { |
| 2337 | if (SHMEM2_HAS(bp, dcc_support)) |
| 2338 | SHMEM2_WR(bp, dcc_support, |
| 2339 | (SHMEM_DCC_SUPPORT_DISABLE_ENABLE_PF_TLV | |
| 2340 | SHMEM_DCC_SUPPORT_BANDWIDTH_ALLOCATION_TLV)); |
| 2341 | if (SHMEM2_HAS(bp, afex_driver_support)) |
| 2342 | SHMEM2_WR(bp, afex_driver_support, |
| 2343 | SHMEM_AFEX_SUPPORTED_VERSION_ONE); |
| 2344 | } |
| 2345 | |
| 2346 | /* Set AFEX default VLAN tag to an invalid value */ |
| 2347 | bp->afex_def_vlan_tag = -1; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2348 | } |
| 2349 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2350 | /** |
| 2351 | * bnx2x_bz_fp - zero content of the fastpath structure. |
| 2352 | * |
| 2353 | * @bp: driver handle |
| 2354 | * @index: fastpath index to be zeroed |
| 2355 | * |
| 2356 | * Makes sure the contents of the bp->fp[index].napi is kept |
| 2357 | * intact. |
| 2358 | */ |
| 2359 | static void bnx2x_bz_fp(struct bnx2x *bp, int index) |
| 2360 | { |
| 2361 | struct bnx2x_fastpath *fp = &bp->fp[index]; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2362 | int cos; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2363 | struct napi_struct orig_napi = fp->napi; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2364 | struct bnx2x_agg_info *orig_tpa_info = fp->tpa_info; |
Yuval Mintz | d76a611 | 2013-06-02 00:06:17 +0000 | [diff] [blame] | 2365 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2366 | /* bzero bnx2x_fastpath contents */ |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 2367 | if (fp->tpa_info) |
| 2368 | memset(fp->tpa_info, 0, ETH_MAX_AGGREGATION_QUEUES_E1H_E2 * |
| 2369 | sizeof(struct bnx2x_agg_info)); |
| 2370 | memset(fp, 0, sizeof(*fp)); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2371 | |
| 2372 | /* Restore the NAPI object as it has been already initialized */ |
| 2373 | fp->napi = orig_napi; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2374 | fp->tpa_info = orig_tpa_info; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2375 | fp->bp = bp; |
| 2376 | fp->index = index; |
| 2377 | if (IS_ETH_FP(fp)) |
| 2378 | fp->max_cos = bp->max_cos; |
| 2379 | else |
| 2380 | /* Special queues support only one CoS */ |
| 2381 | fp->max_cos = 1; |
| 2382 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2383 | /* Init txdata pointers */ |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2384 | if (IS_FCOE_FP(fp)) |
| 2385 | fp->txdata_ptr[0] = &bp->bnx2x_txq[FCOE_TXQ_IDX(bp)]; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2386 | if (IS_ETH_FP(fp)) |
| 2387 | for_each_cos_in_tx_queue(fp, cos) |
| 2388 | fp->txdata_ptr[cos] = &bp->bnx2x_txq[cos * |
| 2389 | BNX2X_NUM_ETH_QUEUES(bp) + index]; |
| 2390 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2391 | /* 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] | 2392 | * minimal size so it must be set prior to queue memory allocation |
| 2393 | */ |
| 2394 | fp->disable_tpa = !(bp->flags & TPA_ENABLE_FLAG || |
| 2395 | (bp->flags & GRO_ENABLE_FLAG && |
| 2396 | bnx2x_mtu_allows_gro(bp->dev->mtu))); |
| 2397 | if (bp->flags & TPA_ENABLE_FLAG) |
| 2398 | fp->mode = TPA_MODE_LRO; |
| 2399 | else if (bp->flags & GRO_ENABLE_FLAG) |
| 2400 | fp->mode = TPA_MODE_GRO; |
| 2401 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2402 | /* We don't want TPA on an FCoE L2 ring */ |
| 2403 | if (IS_FCOE_FP(fp)) |
| 2404 | fp->disable_tpa = 1; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2405 | } |
| 2406 | |
| 2407 | int bnx2x_load_cnic(struct bnx2x *bp) |
| 2408 | { |
| 2409 | int i, rc, port = BP_PORT(bp); |
| 2410 | |
| 2411 | DP(NETIF_MSG_IFUP, "Starting CNIC-related load\n"); |
| 2412 | |
| 2413 | mutex_init(&bp->cnic_mutex); |
| 2414 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2415 | if (IS_PF(bp)) { |
| 2416 | rc = bnx2x_alloc_mem_cnic(bp); |
| 2417 | if (rc) { |
| 2418 | BNX2X_ERR("Unable to allocate bp memory for cnic\n"); |
| 2419 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); |
| 2420 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2421 | } |
| 2422 | |
| 2423 | rc = bnx2x_alloc_fp_mem_cnic(bp); |
| 2424 | if (rc) { |
| 2425 | BNX2X_ERR("Unable to allocate memory for cnic fps\n"); |
| 2426 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); |
| 2427 | } |
| 2428 | |
| 2429 | /* Update the number of queues with the cnic queues */ |
| 2430 | rc = bnx2x_set_real_num_queues(bp, 1); |
| 2431 | if (rc) { |
| 2432 | BNX2X_ERR("Unable to set real_num_queues including cnic\n"); |
| 2433 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); |
| 2434 | } |
| 2435 | |
| 2436 | /* Add all CNIC NAPI objects */ |
| 2437 | bnx2x_add_all_napi_cnic(bp); |
| 2438 | DP(NETIF_MSG_IFUP, "cnic napi added\n"); |
| 2439 | bnx2x_napi_enable_cnic(bp); |
| 2440 | |
| 2441 | rc = bnx2x_init_hw_func_cnic(bp); |
| 2442 | if (rc) |
| 2443 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic1); |
| 2444 | |
| 2445 | bnx2x_nic_init_cnic(bp); |
| 2446 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2447 | if (IS_PF(bp)) { |
| 2448 | /* Enable Timer scan */ |
| 2449 | REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 1); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2450 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2451 | /* setup cnic queues */ |
| 2452 | for_each_cnic_queue(bp, i) { |
| 2453 | rc = bnx2x_setup_queue(bp, &bp->fp[i], 0); |
| 2454 | if (rc) { |
| 2455 | BNX2X_ERR("Queue setup failed\n"); |
| 2456 | LOAD_ERROR_EXIT(bp, load_error_cnic2); |
| 2457 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2458 | } |
| 2459 | } |
| 2460 | |
| 2461 | /* Initialize Rx filter. */ |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2462 | bnx2x_set_rx_mode_inner(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2463 | |
| 2464 | /* re-read iscsi info */ |
| 2465 | bnx2x_get_iscsi_info(bp); |
| 2466 | bnx2x_setup_cnic_irq_info(bp); |
| 2467 | bnx2x_setup_cnic_info(bp); |
| 2468 | bp->cnic_loaded = true; |
| 2469 | if (bp->state == BNX2X_STATE_OPEN) |
| 2470 | bnx2x_cnic_notify(bp, CNIC_CTL_START_CMD); |
| 2471 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2472 | DP(NETIF_MSG_IFUP, "Ending successfully CNIC-related load\n"); |
| 2473 | |
| 2474 | return 0; |
| 2475 | |
| 2476 | #ifndef BNX2X_STOP_ON_ERROR |
| 2477 | load_error_cnic2: |
| 2478 | /* Disable Timer scan */ |
| 2479 | REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 0); |
| 2480 | |
| 2481 | load_error_cnic1: |
| 2482 | bnx2x_napi_disable_cnic(bp); |
| 2483 | /* Update the number of queues without the cnic queues */ |
| 2484 | rc = bnx2x_set_real_num_queues(bp, 0); |
| 2485 | if (rc) |
| 2486 | BNX2X_ERR("Unable to set real_num_queues not including cnic\n"); |
| 2487 | load_error_cnic0: |
| 2488 | BNX2X_ERR("CNIC-related load failed\n"); |
| 2489 | bnx2x_free_fp_mem_cnic(bp); |
| 2490 | bnx2x_free_mem_cnic(bp); |
| 2491 | return rc; |
| 2492 | #endif /* ! BNX2X_STOP_ON_ERROR */ |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2493 | } |
| 2494 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2495 | /* must be called with rtnl_lock */ |
| 2496 | int bnx2x_nic_load(struct bnx2x *bp, int load_mode) |
| 2497 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2498 | int port = BP_PORT(bp); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2499 | int i, rc = 0, load_code = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2500 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2501 | DP(NETIF_MSG_IFUP, "Starting NIC load\n"); |
| 2502 | DP(NETIF_MSG_IFUP, |
| 2503 | "CNIC is %s\n", CNIC_ENABLED(bp) ? "enabled" : "disabled"); |
| 2504 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2505 | #ifdef BNX2X_STOP_ON_ERROR |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2506 | if (unlikely(bp->panic)) { |
| 2507 | BNX2X_ERR("Can't load NIC when there is panic\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2508 | return -EPERM; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2509 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2510 | #endif |
| 2511 | |
| 2512 | bp->state = BNX2X_STATE_OPENING_WAIT4_LOAD; |
| 2513 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2514 | /* zero the structure w/o any lock, before SP handler is initialized */ |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 2515 | memset(&bp->last_reported_link, 0, sizeof(bp->last_reported_link)); |
| 2516 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 2517 | &bp->last_reported_link.link_report_flags); |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 2518 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2519 | if (IS_PF(bp)) |
| 2520 | /* must be called before memory allocation and HW init */ |
| 2521 | bnx2x_ilt_set_info(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2522 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2523 | /* |
| 2524 | * Zero fastpath structures preserving invariants like napi, which are |
| 2525 | * allocated only once, fp index, max_cos, bp pointer. |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2526 | * Also set fp->disable_tpa and txdata_ptr. |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2527 | */ |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2528 | DP(NETIF_MSG_IFUP, "num queues: %d", bp->num_queues); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2529 | for_each_queue(bp, i) |
| 2530 | bnx2x_bz_fp(bp, i); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2531 | memset(bp->bnx2x_txq, 0, (BNX2X_MAX_RSS_COUNT(bp) * BNX2X_MULTI_TX_COS + |
| 2532 | bp->num_cnic_queues) * |
| 2533 | sizeof(struct bnx2x_fp_txdata)); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2534 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2535 | bp->fcoe_init = false; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2536 | |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 2537 | /* Set the receive queues buffer size */ |
| 2538 | bnx2x_set_rx_buf_size(bp); |
| 2539 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2540 | if (IS_PF(bp)) { |
| 2541 | rc = bnx2x_alloc_mem(bp); |
| 2542 | if (rc) { |
| 2543 | BNX2X_ERR("Unable to allocate bp memory\n"); |
| 2544 | return rc; |
| 2545 | } |
| 2546 | } |
| 2547 | |
| 2548 | /* Allocated memory for FW statistics */ |
| 2549 | if (bnx2x_alloc_fw_stats_mem(bp)) |
| 2550 | LOAD_ERROR_EXIT(bp, load_error0); |
| 2551 | |
| 2552 | /* need to be done after alloc mem, since it's self adjusting to amount |
| 2553 | * of memory available for RSS queues |
| 2554 | */ |
| 2555 | rc = bnx2x_alloc_fp_mem(bp); |
| 2556 | if (rc) { |
| 2557 | BNX2X_ERR("Unable to allocate memory for fps\n"); |
| 2558 | LOAD_ERROR_EXIT(bp, load_error0); |
| 2559 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2560 | |
Ariel Elior | 8d9ac29 | 2013-01-01 05:22:27 +0000 | [diff] [blame] | 2561 | /* request pf to initialize status blocks */ |
| 2562 | if (IS_VF(bp)) { |
| 2563 | rc = bnx2x_vfpf_init(bp); |
| 2564 | if (rc) |
| 2565 | LOAD_ERROR_EXIT(bp, load_error0); |
| 2566 | } |
| 2567 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2568 | /* As long as bnx2x_alloc_mem() may possibly update |
| 2569 | * bp->num_queues, bnx2x_set_real_num_queues() should always |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2570 | * come after it. At this stage cnic queues are not counted. |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2571 | */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2572 | rc = bnx2x_set_real_num_queues(bp, 0); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2573 | if (rc) { |
| 2574 | BNX2X_ERR("Unable to set real_num_queues\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2575 | LOAD_ERROR_EXIT(bp, load_error0); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2576 | } |
| 2577 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2578 | /* configure multi cos mappings in kernel. |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2579 | * this configuration may be overridden by a multi class queue |
| 2580 | * discipline or by a dcbx negotiation result. |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2581 | */ |
| 2582 | bnx2x_setup_tc(bp->dev, bp->max_cos); |
| 2583 | |
Merav Sicron | 26614ba | 2012-08-27 03:26:19 +0000 | [diff] [blame] | 2584 | /* Add all NAPI objects */ |
| 2585 | bnx2x_add_all_napi(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2586 | DP(NETIF_MSG_IFUP, "napi added\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2587 | bnx2x_napi_enable(bp); |
| 2588 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2589 | if (IS_PF(bp)) { |
| 2590 | /* set pf load just before approaching the MCP */ |
| 2591 | bnx2x_set_pf_load(bp); |
Ariel Elior | 889b9af | 2012-01-26 06:01:51 +0000 | [diff] [blame] | 2592 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2593 | /* if mcp exists send load request and analyze response */ |
| 2594 | if (!BP_NOMCP(bp)) { |
| 2595 | /* attempt to load pf */ |
| 2596 | rc = bnx2x_nic_load_request(bp, &load_code); |
| 2597 | if (rc) |
| 2598 | LOAD_ERROR_EXIT(bp, load_error1); |
Ariel Elior | 95c6c616 | 2012-01-26 06:01:52 +0000 | [diff] [blame] | 2599 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2600 | /* what did mcp say? */ |
| 2601 | rc = bnx2x_nic_load_analyze_req(bp, load_code); |
| 2602 | if (rc) { |
| 2603 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
Ariel Elior | d1e2d96 | 2012-01-26 06:01:49 +0000 | [diff] [blame] | 2604 | LOAD_ERROR_EXIT(bp, load_error2); |
| 2605 | } |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2606 | } else { |
| 2607 | load_code = bnx2x_nic_load_no_mcp(bp, port); |
Ariel Elior | d1e2d96 | 2012-01-26 06:01:49 +0000 | [diff] [blame] | 2608 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2609 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2610 | /* mark pmf if applicable */ |
| 2611 | bnx2x_nic_load_pmf(bp, load_code); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2612 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2613 | /* Init Function state controlling object */ |
| 2614 | bnx2x__init_func_obj(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2615 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2616 | /* Initialize HW */ |
| 2617 | rc = bnx2x_init_hw(bp, load_code); |
| 2618 | if (rc) { |
| 2619 | BNX2X_ERR("HW init failed, aborting\n"); |
| 2620 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
| 2621 | LOAD_ERROR_EXIT(bp, load_error2); |
| 2622 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2623 | } |
| 2624 | |
Yuval Mintz | ecf01c2 | 2013-04-22 02:53:03 +0000 | [diff] [blame] | 2625 | bnx2x_pre_irq_nic_init(bp); |
| 2626 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2627 | /* Connect to IRQs */ |
| 2628 | rc = bnx2x_setup_irqs(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2629 | if (rc) { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2630 | BNX2X_ERR("setup irqs failed\n"); |
| 2631 | if (IS_PF(bp)) |
| 2632 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2633 | LOAD_ERROR_EXIT(bp, load_error2); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2634 | } |
| 2635 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2636 | /* Init per-function objects */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2637 | if (IS_PF(bp)) { |
Yuval Mintz | ecf01c2 | 2013-04-22 02:53:03 +0000 | [diff] [blame] | 2638 | /* Setup NIC internals and enable interrupts */ |
| 2639 | bnx2x_post_irq_nic_init(bp, load_code); |
| 2640 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2641 | bnx2x_init_bp_objs(bp); |
Ariel Elior | b56e967 | 2013-01-01 05:22:32 +0000 | [diff] [blame] | 2642 | bnx2x_iov_nic_init(bp); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2643 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2644 | /* Set AFEX default VLAN tag to an invalid value */ |
| 2645 | bp->afex_def_vlan_tag = -1; |
| 2646 | bnx2x_nic_load_afex_dcc(bp, load_code); |
| 2647 | bp->state = BNX2X_STATE_OPENING_WAIT4_PORT; |
| 2648 | rc = bnx2x_func_start(bp); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2649 | if (rc) { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2650 | BNX2X_ERR("Function start failed!\n"); |
| 2651 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
| 2652 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2653 | LOAD_ERROR_EXIT(bp, load_error3); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2654 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2655 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2656 | /* Send LOAD_DONE command to MCP */ |
| 2657 | if (!BP_NOMCP(bp)) { |
| 2658 | load_code = bnx2x_fw_command(bp, |
| 2659 | DRV_MSG_CODE_LOAD_DONE, 0); |
| 2660 | if (!load_code) { |
| 2661 | BNX2X_ERR("MCP response failure, aborting\n"); |
| 2662 | rc = -EBUSY; |
| 2663 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2664 | } |
| 2665 | } |
| 2666 | |
Ariel Elior | 0c14e5c | 2013-04-17 22:49:06 +0000 | [diff] [blame] | 2667 | /* initialize FW coalescing state machines in RAM */ |
| 2668 | bnx2x_update_coalesce(bp); |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2669 | } |
Ariel Elior | 0c14e5c | 2013-04-17 22:49:06 +0000 | [diff] [blame] | 2670 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2671 | /* setup the leading queue */ |
| 2672 | rc = bnx2x_setup_leading(bp); |
| 2673 | if (rc) { |
| 2674 | BNX2X_ERR("Setup leading failed!\n"); |
| 2675 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2676 | } |
| 2677 | |
| 2678 | /* set up the rest of the queues */ |
| 2679 | for_each_nondefault_eth_queue(bp, i) { |
| 2680 | if (IS_PF(bp)) |
| 2681 | rc = bnx2x_setup_queue(bp, &bp->fp[i], false); |
| 2682 | else /* VF */ |
| 2683 | rc = bnx2x_vfpf_setup_q(bp, &bp->fp[i], false); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2684 | if (rc) { |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2685 | BNX2X_ERR("Queue %d setup failed\n", i); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2686 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2687 | } |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2688 | } |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2689 | |
Ariel Elior | 60cad4e | 2013-09-04 14:09:22 +0300 | [diff] [blame] | 2690 | /* setup rss */ |
| 2691 | rc = bnx2x_init_rss(bp); |
| 2692 | if (rc) { |
| 2693 | BNX2X_ERR("PF RSS init failed\n"); |
| 2694 | LOAD_ERROR_EXIT(bp, load_error3); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2695 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2696 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2697 | /* Now when Clients are configured we are ready to work */ |
| 2698 | bp->state = BNX2X_STATE_OPEN; |
| 2699 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2700 | /* Configure a ucast MAC */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2701 | if (IS_PF(bp)) |
| 2702 | rc = bnx2x_set_eth_mac(bp, true); |
Ariel Elior | 8d9ac29 | 2013-01-01 05:22:27 +0000 | [diff] [blame] | 2703 | else /* vf */ |
Dmitry Kravkov | f8f4f61 | 2013-04-24 01:45:00 +0000 | [diff] [blame] | 2704 | rc = bnx2x_vfpf_config_mac(bp, bp->dev->dev_addr, bp->fp->index, |
| 2705 | true); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2706 | if (rc) { |
| 2707 | BNX2X_ERR("Setting Ethernet MAC failed\n"); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2708 | LOAD_ERROR_EXIT(bp, load_error3); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2709 | } |
Vladislav Zolotarov | 6e30dd4 | 2011-02-06 11:25:41 -0800 | [diff] [blame] | 2710 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2711 | if (IS_PF(bp) && bp->pending_max) { |
Dmitry Kravkov | e3835b9 | 2011-03-06 10:50:44 +0000 | [diff] [blame] | 2712 | bnx2x_update_max_mf_config(bp, bp->pending_max); |
| 2713 | bp->pending_max = 0; |
| 2714 | } |
| 2715 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2716 | if (bp->port.pmf) { |
| 2717 | rc = bnx2x_initial_phy_init(bp, load_mode); |
| 2718 | if (rc) |
| 2719 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2720 | } |
Barak Witkowski | c63da99 | 2012-12-05 23:04:03 +0000 | [diff] [blame] | 2721 | bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_BOOT_FROM_SAN; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2722 | |
| 2723 | /* Start fast path */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2724 | |
| 2725 | /* Initialize Rx filter. */ |
Yuval Mintz | 8b09be5 | 2013-08-01 17:30:59 +0300 | [diff] [blame] | 2726 | bnx2x_set_rx_mode_inner(bp); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2727 | |
| 2728 | /* Start the Tx */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2729 | switch (load_mode) { |
| 2730 | case LOAD_NORMAL: |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2731 | /* Tx queue should be only re-enabled */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2732 | netif_tx_wake_all_queues(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2733 | break; |
| 2734 | |
| 2735 | case LOAD_OPEN: |
| 2736 | netif_tx_start_all_queues(bp->dev); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2737 | smp_mb__after_clear_bit(); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2738 | break; |
| 2739 | |
| 2740 | case LOAD_DIAG: |
Merav Sicron | 8970b2e | 2012-06-19 07:48:22 +0000 | [diff] [blame] | 2741 | case LOAD_LOOPBACK_EXT: |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2742 | bp->state = BNX2X_STATE_DIAG; |
| 2743 | break; |
| 2744 | |
| 2745 | default: |
| 2746 | break; |
| 2747 | } |
| 2748 | |
Dmitry Kravkov | 00253a8 | 2011-11-13 04:34:25 +0000 | [diff] [blame] | 2749 | if (bp->port.pmf) |
Barak Witkowski | 4c70489 | 2012-12-02 04:05:47 +0000 | [diff] [blame] | 2750 | bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_PORT_MASK, 0); |
Dmitry Kravkov | 00253a8 | 2011-11-13 04:34:25 +0000 | [diff] [blame] | 2751 | else |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2752 | bnx2x__link_status_update(bp); |
| 2753 | |
| 2754 | /* start the timer */ |
| 2755 | mod_timer(&bp->timer, jiffies + bp->current_interval); |
| 2756 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2757 | if (CNIC_ENABLED(bp)) |
| 2758 | bnx2x_load_cnic(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2759 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2760 | if (IS_PF(bp) && SHMEM2_HAS(bp, drv_capabilities_flag)) { |
| 2761 | /* mark driver is loaded in shmem2 */ |
Yuval Mintz | 9ce392d | 2012-03-12 08:53:11 +0000 | [diff] [blame] | 2762 | u32 val; |
| 2763 | val = SHMEM2_RD(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)]); |
| 2764 | SHMEM2_WR(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)], |
| 2765 | val | DRV_FLAGS_CAPABILITIES_LOADED_SUPPORTED | |
| 2766 | DRV_FLAGS_CAPABILITIES_LOADED_L2); |
| 2767 | } |
| 2768 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2769 | /* Wait for all pending SP commands to complete */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2770 | if (IS_PF(bp) && !bnx2x_wait_sp_comp(bp, ~0x0UL)) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2771 | BNX2X_ERR("Timeout waiting for SP elements to complete\n"); |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 2772 | bnx2x_nic_unload(bp, UNLOAD_CLOSE, false); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2773 | return -EBUSY; |
| 2774 | } |
Dmitry Kravkov | 6891dd2 | 2010-08-03 21:49:40 +0000 | [diff] [blame] | 2775 | |
Barak Witkowski | 9876879 | 2012-06-19 07:48:31 +0000 | [diff] [blame] | 2776 | /* If PMF - send ADMIN DCBX msg to MFW to initiate DCBX FSM */ |
| 2777 | if (bp->port.pmf && (bp->state != BNX2X_STATE_DIAG)) |
| 2778 | bnx2x_dcbx_init(bp, false); |
| 2779 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2780 | DP(NETIF_MSG_IFUP, "Ending successfully NIC load\n"); |
| 2781 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2782 | return 0; |
| 2783 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2784 | #ifndef BNX2X_STOP_ON_ERROR |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2785 | load_error3: |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2786 | if (IS_PF(bp)) { |
| 2787 | bnx2x_int_disable_sync(bp, 1); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2788 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2789 | /* Clean queueable objects */ |
| 2790 | bnx2x_squeeze_objects(bp); |
| 2791 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2792 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2793 | /* Free SKBs, SGEs, TPA pool and driver internals */ |
| 2794 | bnx2x_free_skbs(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 2795 | for_each_rx_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2796 | bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2797 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2798 | /* Release IRQs */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2799 | bnx2x_free_irq(bp); |
| 2800 | load_error2: |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2801 | if (IS_PF(bp) && !BP_NOMCP(bp)) { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2802 | bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP, 0); |
| 2803 | bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0); |
| 2804 | } |
| 2805 | |
| 2806 | bp->port.pmf = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2807 | load_error1: |
| 2808 | bnx2x_napi_disable(bp); |
Michal Schmidt | 722c6f5 | 2013-03-15 05:27:54 +0000 | [diff] [blame] | 2809 | bnx2x_del_all_napi(bp); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2810 | |
Ariel Elior | 889b9af | 2012-01-26 06:01:51 +0000 | [diff] [blame] | 2811 | /* clear pf_load status, as it was already set */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2812 | if (IS_PF(bp)) |
| 2813 | bnx2x_clear_pf_load(bp); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2814 | load_error0: |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2815 | bnx2x_free_fp_mem(bp); |
| 2816 | bnx2x_free_fw_stats_mem(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2817 | bnx2x_free_mem(bp); |
| 2818 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2819 | return rc; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2820 | #endif /* ! BNX2X_STOP_ON_ERROR */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2821 | } |
| 2822 | |
Yuval Mintz | 7fa6f340 | 2013-03-20 05:21:28 +0000 | [diff] [blame] | 2823 | int bnx2x_drain_tx_queues(struct bnx2x *bp) |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2824 | { |
| 2825 | u8 rc = 0, cos, i; |
| 2826 | |
| 2827 | /* Wait until tx fastpath tasks complete */ |
| 2828 | for_each_tx_queue(bp, i) { |
| 2829 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
| 2830 | |
| 2831 | for_each_cos_in_tx_queue(fp, cos) |
| 2832 | rc = bnx2x_clean_tx_queue(bp, fp->txdata_ptr[cos]); |
| 2833 | if (rc) |
| 2834 | return rc; |
| 2835 | } |
| 2836 | return 0; |
| 2837 | } |
| 2838 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2839 | /* must be called with rtnl_lock */ |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 2840 | 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] | 2841 | { |
| 2842 | int i; |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2843 | bool global = false; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2844 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2845 | DP(NETIF_MSG_IFUP, "Starting NIC unload\n"); |
| 2846 | |
Yuval Mintz | 9ce392d | 2012-03-12 08:53:11 +0000 | [diff] [blame] | 2847 | /* mark driver is unloaded in shmem2 */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2848 | if (IS_PF(bp) && SHMEM2_HAS(bp, drv_capabilities_flag)) { |
Yuval Mintz | 9ce392d | 2012-03-12 08:53:11 +0000 | [diff] [blame] | 2849 | u32 val; |
| 2850 | val = SHMEM2_RD(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)]); |
| 2851 | SHMEM2_WR(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)], |
| 2852 | val & ~DRV_FLAGS_CAPABILITIES_LOADED_L2); |
| 2853 | } |
| 2854 | |
Yuval Mintz | 80bfe5c | 2013-01-23 03:21:49 +0000 | [diff] [blame] | 2855 | if (IS_PF(bp) && bp->recovery_state != BNX2X_RECOVERY_DONE && |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2856 | (bp->state == BNX2X_STATE_CLOSED || |
| 2857 | bp->state == BNX2X_STATE_ERROR)) { |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2858 | /* We can get here if the driver has been unloaded |
| 2859 | * during parity error recovery and is either waiting for a |
| 2860 | * leader to complete or for other functions to unload and |
| 2861 | * then ifdown has been issued. In this case we want to |
| 2862 | * unload and let other functions to complete a recovery |
| 2863 | * process. |
| 2864 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2865 | bp->recovery_state = BNX2X_RECOVERY_DONE; |
| 2866 | bp->is_leader = 0; |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2867 | bnx2x_release_leader_lock(bp); |
| 2868 | smp_mb(); |
| 2869 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2870 | DP(NETIF_MSG_IFDOWN, "Releasing a leadership...\n"); |
| 2871 | BNX2X_ERR("Can't unload in closed or error state\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2872 | return -EINVAL; |
| 2873 | } |
| 2874 | |
Yuval Mintz | 80bfe5c | 2013-01-23 03:21:49 +0000 | [diff] [blame] | 2875 | /* Nothing to do during unload if previous bnx2x_nic_load() |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2876 | * have not completed successfully - all resources are released. |
Yuval Mintz | 80bfe5c | 2013-01-23 03:21:49 +0000 | [diff] [blame] | 2877 | * |
| 2878 | * we can get here only after unsuccessful ndo_* callback, during which |
| 2879 | * dev->IFF_UP flag is still on. |
| 2880 | */ |
| 2881 | if (bp->state == BNX2X_STATE_CLOSED || bp->state == BNX2X_STATE_ERROR) |
| 2882 | return 0; |
| 2883 | |
| 2884 | /* 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] | 2885 | * BNX2X_STATE_OPEN and only then stop the Tx. Otherwise bnx2x_tx_int() |
| 2886 | * may restart the Tx from the NAPI context (see bnx2x_tx_int()). |
| 2887 | */ |
| 2888 | bp->state = BNX2X_STATE_CLOSING_WAIT4_HALT; |
| 2889 | smp_mb(); |
| 2890 | |
Ariel Elior | 78c3bcc | 2013-06-20 17:39:08 +0300 | [diff] [blame] | 2891 | /* indicate to VFs that the PF is going down */ |
| 2892 | bnx2x_iov_channel_down(bp); |
| 2893 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2894 | if (CNIC_LOADED(bp)) |
| 2895 | bnx2x_cnic_notify(bp, CNIC_CTL_STOP_CMD); |
| 2896 | |
Vladislav Zolotarov | 9505ee3 | 2011-07-19 01:39:41 +0000 | [diff] [blame] | 2897 | /* Stop Tx */ |
| 2898 | bnx2x_tx_disable(bp); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2899 | netdev_reset_tc(bp->dev); |
Vladislav Zolotarov | 9505ee3 | 2011-07-19 01:39:41 +0000 | [diff] [blame] | 2900 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2901 | bp->rx_mode = BNX2X_RX_MODE_NONE; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2902 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2903 | del_timer_sync(&bp->timer); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2904 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2905 | if (IS_PF(bp)) { |
| 2906 | /* Set ALWAYS_ALIVE bit in shmem */ |
| 2907 | bp->fw_drv_pulse_wr_seq |= DRV_PULSE_ALWAYS_ALIVE; |
| 2908 | bnx2x_drv_pulse(bp); |
| 2909 | bnx2x_stats_handle(bp, STATS_EVENT_STOP); |
| 2910 | bnx2x_save_statistics(bp); |
| 2911 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2912 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2913 | /* wait till consumers catch up with producers in all queues */ |
| 2914 | bnx2x_drain_tx_queues(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2915 | |
Ariel Elior | 9b176b6 | 2013-01-01 05:22:28 +0000 | [diff] [blame] | 2916 | /* if VF indicate to PF this function is going down (PF will delete sp |
| 2917 | * elements and clear initializations |
| 2918 | */ |
| 2919 | if (IS_VF(bp)) |
| 2920 | bnx2x_vfpf_close_vf(bp); |
| 2921 | else if (unload_mode != UNLOAD_RECOVERY) |
| 2922 | /* if this is a normal/close unload need to clean up chip*/ |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 2923 | bnx2x_chip_cleanup(bp, unload_mode, keep_link); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2924 | else { |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2925 | /* Send the UNLOAD_REQUEST to the MCP */ |
| 2926 | bnx2x_send_unload_req(bp, unload_mode); |
| 2927 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2928 | /* Prevent transactions to host from the functions on the |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2929 | * engine that doesn't reset global blocks in case of global |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2930 | * attention once global blocks are reset and gates are opened |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2931 | * (the engine which leader will perform the recovery |
| 2932 | * last). |
| 2933 | */ |
| 2934 | if (!CHIP_IS_E1x(bp)) |
| 2935 | bnx2x_pf_disable(bp); |
| 2936 | |
| 2937 | /* Disable HW interrupts, NAPI */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2938 | bnx2x_netif_stop(bp, 1); |
Merav Sicron | 26614ba | 2012-08-27 03:26:19 +0000 | [diff] [blame] | 2939 | /* Delete all NAPI objects */ |
| 2940 | bnx2x_del_all_napi(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2941 | if (CNIC_LOADED(bp)) |
| 2942 | bnx2x_del_all_napi_cnic(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2943 | /* Release IRQs */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2944 | bnx2x_free_irq(bp); |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2945 | |
| 2946 | /* Report UNLOAD_DONE to MCP */ |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 2947 | bnx2x_send_unload_done(bp, false); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2948 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2949 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2950 | /* |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 2951 | * 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] | 2952 | * the queueable objects here in case they failed to get cleaned so far. |
| 2953 | */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2954 | if (IS_PF(bp)) |
| 2955 | bnx2x_squeeze_objects(bp); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2956 | |
Vladislav Zolotarov | 7961689 | 2011-07-21 07:58:54 +0000 | [diff] [blame] | 2957 | /* There should be no more pending SP commands at this stage */ |
| 2958 | bp->sp_state = 0; |
| 2959 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2960 | bp->port.pmf = 0; |
| 2961 | |
| 2962 | /* Free SKBs, SGEs, TPA pool and driver internals */ |
| 2963 | bnx2x_free_skbs(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2964 | if (CNIC_LOADED(bp)) |
| 2965 | bnx2x_free_skbs_cnic(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 2966 | for_each_rx_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2967 | bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2968 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2969 | bnx2x_free_fp_mem(bp); |
| 2970 | if (CNIC_LOADED(bp)) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2971 | bnx2x_free_fp_mem_cnic(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2972 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2973 | if (IS_PF(bp)) { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2974 | if (CNIC_LOADED(bp)) |
| 2975 | bnx2x_free_mem_cnic(bp); |
| 2976 | } |
Ariel Elior | b4cddbd | 2013-08-28 01:13:03 +0300 | [diff] [blame] | 2977 | bnx2x_free_mem(bp); |
| 2978 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2979 | bp->state = BNX2X_STATE_CLOSED; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2980 | bp->cnic_loaded = false; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2981 | |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2982 | /* Check if there are pending parity attentions. If there are - set |
| 2983 | * RECOVERY_IN_PROGRESS. |
| 2984 | */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2985 | if (IS_PF(bp) && bnx2x_chk_parity_attn(bp, &global, false)) { |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2986 | bnx2x_set_reset_in_progress(bp); |
| 2987 | |
| 2988 | /* Set RESET_IS_GLOBAL if needed */ |
| 2989 | if (global) |
| 2990 | bnx2x_set_reset_global(bp); |
| 2991 | } |
| 2992 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2993 | /* The last driver must disable a "close the gate" if there is no |
| 2994 | * parity attention or "process kill" pending. |
| 2995 | */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2996 | if (IS_PF(bp) && |
| 2997 | !bnx2x_clear_pf_load(bp) && |
| 2998 | bnx2x_reset_is_done(bp, BP_PATH(bp))) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2999 | bnx2x_disable_close_the_gate(bp); |
| 3000 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3001 | DP(NETIF_MSG_IFUP, "Ending NIC unload\n"); |
| 3002 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3003 | return 0; |
| 3004 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3005 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3006 | int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state) |
| 3007 | { |
| 3008 | u16 pmcsr; |
| 3009 | |
Dmitry Kravkov | adf5f6a | 2010-10-17 23:10:02 +0000 | [diff] [blame] | 3010 | /* If there is no power capability, silently succeed */ |
| 3011 | if (!bp->pm_cap) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3012 | BNX2X_DEV_INFO("No power capability. Breaking.\n"); |
Dmitry Kravkov | adf5f6a | 2010-10-17 23:10:02 +0000 | [diff] [blame] | 3013 | return 0; |
| 3014 | } |
| 3015 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3016 | pci_read_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, &pmcsr); |
| 3017 | |
| 3018 | switch (state) { |
| 3019 | case PCI_D0: |
| 3020 | pci_write_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, |
| 3021 | ((pmcsr & ~PCI_PM_CTRL_STATE_MASK) | |
| 3022 | PCI_PM_CTRL_PME_STATUS)); |
| 3023 | |
| 3024 | if (pmcsr & PCI_PM_CTRL_STATE_MASK) |
| 3025 | /* delay required during transition out of D3hot */ |
| 3026 | msleep(20); |
| 3027 | break; |
| 3028 | |
| 3029 | case PCI_D3hot: |
| 3030 | /* If there are other clients above don't |
| 3031 | shut down the power */ |
| 3032 | if (atomic_read(&bp->pdev->enable_cnt) != 1) |
| 3033 | return 0; |
| 3034 | /* Don't shut down the power for emulation and FPGA */ |
| 3035 | if (CHIP_REV_IS_SLOW(bp)) |
| 3036 | return 0; |
| 3037 | |
| 3038 | pmcsr &= ~PCI_PM_CTRL_STATE_MASK; |
| 3039 | pmcsr |= 3; |
| 3040 | |
| 3041 | if (bp->wol) |
| 3042 | pmcsr |= PCI_PM_CTRL_PME_ENABLE; |
| 3043 | |
| 3044 | pci_write_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, |
| 3045 | pmcsr); |
| 3046 | |
| 3047 | /* No more memory access after this point until |
| 3048 | * device is brought back to D0. |
| 3049 | */ |
| 3050 | break; |
| 3051 | |
| 3052 | default: |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3053 | dev_err(&bp->pdev->dev, "Can't support state = %d\n", state); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3054 | return -EINVAL; |
| 3055 | } |
| 3056 | return 0; |
| 3057 | } |
| 3058 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3059 | /* |
| 3060 | * net_device service functions |
| 3061 | */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 3062 | int bnx2x_poll(struct napi_struct *napi, int budget) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3063 | { |
| 3064 | int work_done = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3065 | u8 cos; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3066 | struct bnx2x_fastpath *fp = container_of(napi, struct bnx2x_fastpath, |
| 3067 | napi); |
| 3068 | struct bnx2x *bp = fp->bp; |
| 3069 | |
| 3070 | while (1) { |
| 3071 | #ifdef BNX2X_STOP_ON_ERROR |
| 3072 | if (unlikely(bp->panic)) { |
| 3073 | napi_complete(napi); |
| 3074 | return 0; |
| 3075 | } |
| 3076 | #endif |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3077 | if (!bnx2x_fp_lock_napi(fp)) |
| 3078 | return work_done; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3079 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3080 | for_each_cos_in_tx_queue(fp, cos) |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3081 | if (bnx2x_tx_queue_has_work(fp->txdata_ptr[cos])) |
| 3082 | bnx2x_tx_int(bp, fp->txdata_ptr[cos]); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3083 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3084 | if (bnx2x_has_rx_work(fp)) { |
| 3085 | work_done += bnx2x_rx_int(fp, budget - work_done); |
| 3086 | |
| 3087 | /* must not complete if we consumed full budget */ |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3088 | if (work_done >= budget) { |
| 3089 | bnx2x_fp_unlock_napi(fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3090 | break; |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3091 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3092 | } |
| 3093 | |
| 3094 | /* Fall out from the NAPI loop if needed */ |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3095 | if (!bnx2x_fp_unlock_napi(fp) && |
| 3096 | !(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) { |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3097 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 3098 | /* No need to update SB for FCoE L2 ring as long as |
| 3099 | * it's connected to the default SB and the SB |
| 3100 | * has been updated when NAPI was scheduled. |
| 3101 | */ |
| 3102 | if (IS_FCOE_FP(fp)) { |
| 3103 | napi_complete(napi); |
| 3104 | break; |
| 3105 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3106 | bnx2x_update_fpsb_idx(fp); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3107 | /* bnx2x_has_rx_work() reads the status block, |
| 3108 | * thus we need to ensure that status block indices |
| 3109 | * have been actually read (bnx2x_update_fpsb_idx) |
| 3110 | * prior to this check (bnx2x_has_rx_work) so that |
| 3111 | * we won't write the "newer" value of the status block |
| 3112 | * to IGU (if there was a DMA right after |
| 3113 | * bnx2x_has_rx_work and if there is no rmb, the memory |
| 3114 | * reading (bnx2x_update_fpsb_idx) may be postponed |
| 3115 | * to right before bnx2x_ack_sb). In this case there |
| 3116 | * will never be another interrupt until there is |
| 3117 | * another update of the status block, while there |
| 3118 | * is still unhandled work. |
| 3119 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3120 | rmb(); |
| 3121 | |
| 3122 | if (!(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) { |
| 3123 | napi_complete(napi); |
| 3124 | /* Re-enable interrupts */ |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3125 | DP(NETIF_MSG_RX_STATUS, |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3126 | "Update index to %d\n", fp->fp_hc_idx); |
| 3127 | bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID, |
| 3128 | le16_to_cpu(fp->fp_hc_idx), |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3129 | IGU_INT_ENABLE, 1); |
| 3130 | break; |
| 3131 | } |
| 3132 | } |
| 3133 | } |
| 3134 | |
| 3135 | return work_done; |
| 3136 | } |
| 3137 | |
Cong Wang | e0d1095 | 2013-08-01 11:10:25 +0800 | [diff] [blame] | 3138 | #ifdef CONFIG_NET_RX_BUSY_POLL |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3139 | /* must be called with local_bh_disable()d */ |
| 3140 | int bnx2x_low_latency_recv(struct napi_struct *napi) |
| 3141 | { |
| 3142 | struct bnx2x_fastpath *fp = container_of(napi, struct bnx2x_fastpath, |
| 3143 | napi); |
| 3144 | struct bnx2x *bp = fp->bp; |
| 3145 | int found = 0; |
| 3146 | |
| 3147 | if ((bp->state == BNX2X_STATE_CLOSED) || |
| 3148 | (bp->state == BNX2X_STATE_ERROR) || |
| 3149 | (bp->flags & (TPA_ENABLE_FLAG | GRO_ENABLE_FLAG))) |
| 3150 | return LL_FLUSH_FAILED; |
| 3151 | |
| 3152 | if (!bnx2x_fp_lock_poll(fp)) |
| 3153 | return LL_FLUSH_BUSY; |
| 3154 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 3155 | if (bnx2x_has_rx_work(fp)) |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3156 | found = bnx2x_rx_int(fp, 4); |
Dmitry Kravkov | 8f20aa5 | 2013-06-19 01:36:04 +0300 | [diff] [blame] | 3157 | |
| 3158 | bnx2x_fp_unlock_poll(fp); |
| 3159 | |
| 3160 | return found; |
| 3161 | } |
| 3162 | #endif |
| 3163 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3164 | /* we split the first BD into headers and data BDs |
| 3165 | * to ease the pain of our fellow microcode engineers |
| 3166 | * we use one mapping for both BDs |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3167 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3168 | static u16 bnx2x_tx_split(struct bnx2x *bp, |
| 3169 | struct bnx2x_fp_txdata *txdata, |
| 3170 | struct sw_tx_bd *tx_buf, |
| 3171 | struct eth_tx_start_bd **tx_bd, u16 hlen, |
| 3172 | u16 bd_prod) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3173 | { |
| 3174 | struct eth_tx_start_bd *h_tx_bd = *tx_bd; |
| 3175 | struct eth_tx_bd *d_tx_bd; |
| 3176 | dma_addr_t mapping; |
| 3177 | int old_len = le16_to_cpu(h_tx_bd->nbytes); |
| 3178 | |
| 3179 | /* first fix first BD */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3180 | h_tx_bd->nbytes = cpu_to_le16(hlen); |
| 3181 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3182 | DP(NETIF_MSG_TX_QUEUED, "TSO split header size is %d (%x:%x)\n", |
| 3183 | 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] | 3184 | |
| 3185 | /* now get a new data BD |
| 3186 | * (after the pbd) and fill it */ |
| 3187 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3188 | d_tx_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3189 | |
| 3190 | mapping = HILO_U64(le32_to_cpu(h_tx_bd->addr_hi), |
| 3191 | le32_to_cpu(h_tx_bd->addr_lo)) + hlen; |
| 3192 | |
| 3193 | d_tx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 3194 | d_tx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 3195 | d_tx_bd->nbytes = cpu_to_le16(old_len - hlen); |
| 3196 | |
| 3197 | /* this marks the BD as one that has no individual mapping */ |
| 3198 | tx_buf->flags |= BNX2X_TSO_SPLIT_BD; |
| 3199 | |
| 3200 | DP(NETIF_MSG_TX_QUEUED, |
| 3201 | "TSO split data size is %d (%x:%x)\n", |
| 3202 | d_tx_bd->nbytes, d_tx_bd->addr_hi, d_tx_bd->addr_lo); |
| 3203 | |
| 3204 | /* update tx_bd */ |
| 3205 | *tx_bd = (struct eth_tx_start_bd *)d_tx_bd; |
| 3206 | |
| 3207 | return bd_prod; |
| 3208 | } |
| 3209 | |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3210 | #define bswab32(b32) ((__force __le32) swab32((__force __u32) (b32))) |
| 3211 | #define bswab16(b16) ((__force __le16) swab16((__force __u16) (b16))) |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3212 | 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] | 3213 | { |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3214 | __sum16 tsum = (__force __sum16) csum; |
| 3215 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3216 | if (fix > 0) |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3217 | tsum = ~csum_fold(csum_sub((__force __wsum) csum, |
| 3218 | csum_partial(t_header - fix, fix, 0))); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3219 | |
| 3220 | else if (fix < 0) |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3221 | tsum = ~csum_fold(csum_add((__force __wsum) csum, |
| 3222 | csum_partial(t_header, -fix, 0))); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3223 | |
Dmitry Kravkov | e2593fc | 2013-02-27 00:04:59 +0000 | [diff] [blame] | 3224 | return bswab16(tsum); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3225 | } |
| 3226 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3227 | static u32 bnx2x_xmit_type(struct bnx2x *bp, struct sk_buff *skb) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3228 | { |
| 3229 | u32 rc; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3230 | __u8 prot = 0; |
| 3231 | __be16 protocol; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3232 | |
| 3233 | if (skb->ip_summed != CHECKSUM_PARTIAL) |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3234 | return XMIT_PLAIN; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3235 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3236 | protocol = vlan_get_protocol(skb); |
| 3237 | if (protocol == htons(ETH_P_IPV6)) { |
| 3238 | rc = XMIT_CSUM_V6; |
| 3239 | prot = ipv6_hdr(skb)->nexthdr; |
| 3240 | } else { |
| 3241 | rc = XMIT_CSUM_V4; |
| 3242 | prot = ip_hdr(skb)->protocol; |
| 3243 | } |
| 3244 | |
| 3245 | if (!CHIP_IS_E1x(bp) && skb->encapsulation) { |
| 3246 | if (inner_ip_hdr(skb)->version == 6) { |
| 3247 | rc |= XMIT_CSUM_ENC_V6; |
| 3248 | if (inner_ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3249 | rc |= XMIT_CSUM_TCP; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3250 | } else { |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3251 | rc |= XMIT_CSUM_ENC_V4; |
| 3252 | if (inner_ip_hdr(skb)->protocol == IPPROTO_TCP) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3253 | rc |= XMIT_CSUM_TCP; |
| 3254 | } |
| 3255 | } |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3256 | if (prot == IPPROTO_TCP) |
| 3257 | rc |= XMIT_CSUM_TCP; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3258 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3259 | if (skb_is_gso_v6(skb)) { |
Dmitry Kravkov | e768fb2 | 2013-06-02 23:28:41 +0000 | [diff] [blame] | 3260 | rc |= (XMIT_GSO_V6 | XMIT_CSUM_TCP); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3261 | if (rc & XMIT_CSUM_ENC) |
| 3262 | rc |= XMIT_GSO_ENC_V6; |
| 3263 | } else if (skb_is_gso(skb)) { |
Dmitry Kravkov | e768fb2 | 2013-06-02 23:28:41 +0000 | [diff] [blame] | 3264 | rc |= (XMIT_GSO_V4 | XMIT_CSUM_TCP); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3265 | if (rc & XMIT_CSUM_ENC) |
| 3266 | rc |= XMIT_GSO_ENC_V4; |
| 3267 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3268 | |
| 3269 | return rc; |
| 3270 | } |
| 3271 | |
| 3272 | #if (MAX_SKB_FRAGS >= MAX_FETCH_BD - 3) |
| 3273 | /* check if packet requires linearization (packet is too fragmented) |
| 3274 | no need to check fragmentation if page size > 8K (there will be no |
| 3275 | violation to FW restrictions) */ |
| 3276 | static int bnx2x_pkt_req_lin(struct bnx2x *bp, struct sk_buff *skb, |
| 3277 | u32 xmit_type) |
| 3278 | { |
| 3279 | int to_copy = 0; |
| 3280 | int hlen = 0; |
| 3281 | int first_bd_sz = 0; |
| 3282 | |
| 3283 | /* 3 = 1 (for linear data BD) + 2 (for PBD and last BD) */ |
| 3284 | if (skb_shinfo(skb)->nr_frags >= (MAX_FETCH_BD - 3)) { |
| 3285 | |
| 3286 | if (xmit_type & XMIT_GSO) { |
| 3287 | unsigned short lso_mss = skb_shinfo(skb)->gso_size; |
| 3288 | /* Check if LSO packet needs to be copied: |
| 3289 | 3 = 1 (for headers BD) + 2 (for PBD and last BD) */ |
| 3290 | int wnd_size = MAX_FETCH_BD - 3; |
| 3291 | /* Number of windows to check */ |
| 3292 | int num_wnds = skb_shinfo(skb)->nr_frags - wnd_size; |
| 3293 | int wnd_idx = 0; |
| 3294 | int frag_idx = 0; |
| 3295 | u32 wnd_sum = 0; |
| 3296 | |
| 3297 | /* Headers length */ |
| 3298 | hlen = (int)(skb_transport_header(skb) - skb->data) + |
| 3299 | tcp_hdrlen(skb); |
| 3300 | |
| 3301 | /* Amount of data (w/o headers) on linear part of SKB*/ |
| 3302 | first_bd_sz = skb_headlen(skb) - hlen; |
| 3303 | |
| 3304 | wnd_sum = first_bd_sz; |
| 3305 | |
| 3306 | /* Calculate the first sum - it's special */ |
| 3307 | for (frag_idx = 0; frag_idx < wnd_size - 1; frag_idx++) |
| 3308 | wnd_sum += |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3309 | skb_frag_size(&skb_shinfo(skb)->frags[frag_idx]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3310 | |
| 3311 | /* If there was data on linear skb data - check it */ |
| 3312 | if (first_bd_sz > 0) { |
| 3313 | if (unlikely(wnd_sum < lso_mss)) { |
| 3314 | to_copy = 1; |
| 3315 | goto exit_lbl; |
| 3316 | } |
| 3317 | |
| 3318 | wnd_sum -= first_bd_sz; |
| 3319 | } |
| 3320 | |
| 3321 | /* Others are easier: run through the frag list and |
| 3322 | check all windows */ |
| 3323 | for (wnd_idx = 0; wnd_idx <= num_wnds; wnd_idx++) { |
| 3324 | wnd_sum += |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3325 | skb_frag_size(&skb_shinfo(skb)->frags[wnd_idx + wnd_size - 1]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3326 | |
| 3327 | if (unlikely(wnd_sum < lso_mss)) { |
| 3328 | to_copy = 1; |
| 3329 | break; |
| 3330 | } |
| 3331 | wnd_sum -= |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3332 | skb_frag_size(&skb_shinfo(skb)->frags[wnd_idx]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3333 | } |
| 3334 | } else { |
| 3335 | /* in non-LSO too fragmented packet should always |
| 3336 | be linearized */ |
| 3337 | to_copy = 1; |
| 3338 | } |
| 3339 | } |
| 3340 | |
| 3341 | exit_lbl: |
| 3342 | if (unlikely(to_copy)) |
| 3343 | DP(NETIF_MSG_TX_QUEUED, |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3344 | "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] | 3345 | (xmit_type & XMIT_GSO) ? "LSO" : "non-LSO", |
| 3346 | skb_shinfo(skb)->nr_frags, hlen, first_bd_sz); |
| 3347 | |
| 3348 | return to_copy; |
| 3349 | } |
| 3350 | #endif |
| 3351 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3352 | static void bnx2x_set_pbd_gso_e2(struct sk_buff *skb, u32 *parsing_data, |
| 3353 | u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3354 | { |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3355 | struct ipv6hdr *ipv6; |
| 3356 | |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3357 | *parsing_data |= (skb_shinfo(skb)->gso_size << |
| 3358 | ETH_TX_PARSE_BD_E2_LSO_MSS_SHIFT) & |
| 3359 | ETH_TX_PARSE_BD_E2_LSO_MSS; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3360 | |
| 3361 | if (xmit_type & XMIT_GSO_ENC_V6) |
| 3362 | ipv6 = inner_ipv6_hdr(skb); |
| 3363 | else if (xmit_type & XMIT_GSO_V6) |
| 3364 | ipv6 = ipv6_hdr(skb); |
| 3365 | else |
| 3366 | ipv6 = NULL; |
| 3367 | |
| 3368 | if (ipv6 && ipv6->nexthdr == NEXTHDR_IPV6) |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3369 | *parsing_data |= ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3370 | } |
| 3371 | |
| 3372 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3373 | * bnx2x_set_pbd_gso - update PBD in GSO case. |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3374 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3375 | * @skb: packet skb |
| 3376 | * @pbd: parse BD |
| 3377 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3378 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3379 | static void bnx2x_set_pbd_gso(struct sk_buff *skb, |
| 3380 | struct eth_tx_parse_bd_e1x *pbd, |
Yuval Mintz | 057cf65 | 2013-05-19 04:41:01 +0000 | [diff] [blame] | 3381 | struct eth_tx_start_bd *tx_start_bd, |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3382 | u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3383 | { |
| 3384 | pbd->lso_mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3385 | pbd->tcp_send_seq = bswab32(tcp_hdr(skb)->seq); |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3386 | pbd->tcp_flags = pbd_tcp_flags(tcp_hdr(skb)); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3387 | |
| 3388 | if (xmit_type & XMIT_GSO_V4) { |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3389 | pbd->ip_id = bswab16(ip_hdr(skb)->id); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3390 | pbd->tcp_pseudo_csum = |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3391 | bswab16(~csum_tcpudp_magic(ip_hdr(skb)->saddr, |
| 3392 | ip_hdr(skb)->daddr, |
| 3393 | 0, IPPROTO_TCP, 0)); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3394 | |
Yuval Mintz | 057cf65 | 2013-05-19 04:41:01 +0000 | [diff] [blame] | 3395 | /* GSO on 57710/57711 needs FW to calculate IP checksum */ |
| 3396 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_IP_CSUM; |
| 3397 | } else { |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3398 | pbd->tcp_pseudo_csum = |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3399 | bswab16(~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, |
| 3400 | &ipv6_hdr(skb)->daddr, |
| 3401 | 0, IPPROTO_TCP, 0)); |
Yuval Mintz | 057cf65 | 2013-05-19 04:41:01 +0000 | [diff] [blame] | 3402 | } |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3403 | |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3404 | pbd->global_data |= |
| 3405 | cpu_to_le16(ETH_TX_PARSE_BD_E1X_PSEUDO_CS_WITHOUT_LEN); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3406 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3407 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3408 | /** |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3409 | * bnx2x_set_pbd_csum_enc - update PBD with checksum and return header length |
| 3410 | * |
| 3411 | * @bp: driver handle |
| 3412 | * @skb: packet skb |
| 3413 | * @parsing_data: data to be updated |
| 3414 | * @xmit_type: xmit flags |
| 3415 | * |
| 3416 | * 57712/578xx related, when skb has encapsulation |
| 3417 | */ |
| 3418 | static u8 bnx2x_set_pbd_csum_enc(struct bnx2x *bp, struct sk_buff *skb, |
| 3419 | u32 *parsing_data, u32 xmit_type) |
| 3420 | { |
| 3421 | *parsing_data |= |
| 3422 | ((((u8 *)skb_inner_transport_header(skb) - skb->data) >> 1) << |
| 3423 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) & |
| 3424 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W; |
| 3425 | |
| 3426 | if (xmit_type & XMIT_CSUM_TCP) { |
| 3427 | *parsing_data |= ((inner_tcp_hdrlen(skb) / 4) << |
| 3428 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) & |
| 3429 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW; |
| 3430 | |
| 3431 | return skb_inner_transport_header(skb) + |
| 3432 | inner_tcp_hdrlen(skb) - skb->data; |
| 3433 | } |
| 3434 | |
| 3435 | /* We support checksum offload for TCP and UDP only. |
| 3436 | * No need to pass the UDP header length - it's a constant. |
| 3437 | */ |
| 3438 | return skb_inner_transport_header(skb) + |
| 3439 | sizeof(struct udphdr) - skb->data; |
| 3440 | } |
| 3441 | |
| 3442 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3443 | * 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] | 3444 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3445 | * @bp: driver handle |
| 3446 | * @skb: packet skb |
| 3447 | * @parsing_data: data to be updated |
| 3448 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3449 | * |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3450 | * 57712/578xx related |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3451 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3452 | static u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb, |
| 3453 | u32 *parsing_data, u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3454 | { |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3455 | *parsing_data |= |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 3456 | ((((u8 *)skb_transport_header(skb) - skb->data) >> 1) << |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3457 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) & |
| 3458 | ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3459 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3460 | if (xmit_type & XMIT_CSUM_TCP) { |
| 3461 | *parsing_data |= ((tcp_hdrlen(skb) / 4) << |
| 3462 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) & |
| 3463 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3464 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3465 | return skb_transport_header(skb) + tcp_hdrlen(skb) - skb->data; |
Yuval Mintz | 924d75a | 2013-01-23 03:21:44 +0000 | [diff] [blame] | 3466 | } |
| 3467 | /* We support checksum offload for TCP and UDP only. |
| 3468 | * No need to pass the UDP header length - it's a constant. |
| 3469 | */ |
| 3470 | return skb_transport_header(skb) + sizeof(struct udphdr) - skb->data; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3471 | } |
| 3472 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3473 | /* set FW indication according to inner or outer protocols if tunneled */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3474 | static void bnx2x_set_sbd_csum(struct bnx2x *bp, struct sk_buff *skb, |
| 3475 | struct eth_tx_start_bd *tx_start_bd, |
| 3476 | u32 xmit_type) |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3477 | { |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3478 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_L4_CSUM; |
| 3479 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3480 | if (xmit_type & (XMIT_CSUM_ENC_V6 | XMIT_CSUM_V6)) |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3481 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_IPV6; |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3482 | |
| 3483 | if (!(xmit_type & XMIT_CSUM_TCP)) |
| 3484 | 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] | 3485 | } |
| 3486 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3487 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3488 | * bnx2x_set_pbd_csum - update PBD with checksum and return header length |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3489 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3490 | * @bp: driver handle |
| 3491 | * @skb: packet skb |
| 3492 | * @pbd: parse BD to be updated |
| 3493 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3494 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3495 | static u8 bnx2x_set_pbd_csum(struct bnx2x *bp, struct sk_buff *skb, |
| 3496 | struct eth_tx_parse_bd_e1x *pbd, |
| 3497 | u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3498 | { |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3499 | u8 hlen = (skb_network_header(skb) - skb->data) >> 1; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3500 | |
| 3501 | /* for now NS flag is not used in Linux */ |
| 3502 | pbd->global_data = |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3503 | cpu_to_le16(hlen | |
| 3504 | ((skb->protocol == cpu_to_be16(ETH_P_8021Q)) << |
| 3505 | ETH_TX_PARSE_BD_E1X_LLC_SNAP_EN_SHIFT)); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3506 | |
| 3507 | pbd->ip_hlen_w = (skb_transport_header(skb) - |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3508 | skb_network_header(skb)) >> 1; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3509 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3510 | hlen += pbd->ip_hlen_w; |
| 3511 | |
| 3512 | /* We support checksum offload for TCP and UDP only */ |
| 3513 | if (xmit_type & XMIT_CSUM_TCP) |
| 3514 | hlen += tcp_hdrlen(skb) / 2; |
| 3515 | else |
| 3516 | hlen += sizeof(struct udphdr) / 2; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3517 | |
| 3518 | pbd->total_hlen_w = cpu_to_le16(hlen); |
| 3519 | hlen = hlen*2; |
| 3520 | |
| 3521 | if (xmit_type & XMIT_CSUM_TCP) { |
Yuval Mintz | 86564c3 | 2013-01-23 03:21:50 +0000 | [diff] [blame] | 3522 | pbd->tcp_pseudo_csum = bswab16(tcp_hdr(skb)->check); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3523 | |
| 3524 | } else { |
| 3525 | s8 fix = SKB_CS_OFF(skb); /* signed! */ |
| 3526 | |
| 3527 | DP(NETIF_MSG_TX_QUEUED, |
| 3528 | "hlen %d fix %d csum before fix %x\n", |
| 3529 | le16_to_cpu(pbd->total_hlen_w), fix, SKB_CS(skb)); |
| 3530 | |
| 3531 | /* HW bug: fixup the CSUM */ |
| 3532 | pbd->tcp_pseudo_csum = |
| 3533 | bnx2x_csum_fix(skb_transport_header(skb), |
| 3534 | SKB_CS(skb), fix); |
| 3535 | |
| 3536 | DP(NETIF_MSG_TX_QUEUED, "csum after fix %x\n", |
| 3537 | pbd->tcp_pseudo_csum); |
| 3538 | } |
| 3539 | |
| 3540 | return hlen; |
| 3541 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3542 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3543 | static void bnx2x_update_pbds_gso_enc(struct sk_buff *skb, |
| 3544 | struct eth_tx_parse_bd_e2 *pbd_e2, |
| 3545 | struct eth_tx_parse_2nd_bd *pbd2, |
| 3546 | u16 *global_data, |
| 3547 | u32 xmit_type) |
| 3548 | { |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3549 | u16 hlen_w = 0; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3550 | u8 outerip_off, outerip_len = 0; |
Dmitry Kravkov | e768fb2 | 2013-06-02 23:28:41 +0000 | [diff] [blame] | 3551 | |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3552 | /* from outer IP to transport */ |
| 3553 | hlen_w = (skb_inner_transport_header(skb) - |
| 3554 | skb_network_header(skb)) >> 1; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3555 | |
| 3556 | /* transport len */ |
Dmitry Kravkov | e768fb2 | 2013-06-02 23:28:41 +0000 | [diff] [blame] | 3557 | hlen_w += inner_tcp_hdrlen(skb) >> 1; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3558 | |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3559 | pbd2->fw_ip_hdr_to_payload_w = hlen_w; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3560 | |
Dmitry Kravkov | e768fb2 | 2013-06-02 23:28:41 +0000 | [diff] [blame] | 3561 | /* outer IP header info */ |
| 3562 | if (xmit_type & XMIT_CSUM_V4) { |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3563 | struct iphdr *iph = ip_hdr(skb); |
Dmitry Kravkov | 1b4fc0e | 2013-07-11 15:48:21 +0300 | [diff] [blame] | 3564 | u32 csum = (__force u32)(~iph->check) - |
| 3565 | (__force u32)iph->tot_len - |
| 3566 | (__force u32)iph->frag_off; |
Yuval Mintz | c957d09 | 2013-06-25 08:50:11 +0300 | [diff] [blame] | 3567 | |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3568 | pbd2->fw_ip_csum_wo_len_flags_frag = |
Yuval Mintz | c957d09 | 2013-06-25 08:50:11 +0300 | [diff] [blame] | 3569 | bswab16(csum_fold((__force __wsum)csum)); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3570 | } else { |
| 3571 | pbd2->fw_ip_hdr_to_payload_w = |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3572 | hlen_w - ((sizeof(struct ipv6hdr)) >> 1); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3573 | } |
| 3574 | |
| 3575 | pbd2->tcp_send_seq = bswab32(inner_tcp_hdr(skb)->seq); |
| 3576 | |
| 3577 | pbd2->tcp_flags = pbd_tcp_flags(inner_tcp_hdr(skb)); |
| 3578 | |
| 3579 | if (xmit_type & XMIT_GSO_V4) { |
Dmitry Kravkov | e287a75 | 2013-03-21 15:38:24 +0000 | [diff] [blame] | 3580 | pbd2->hw_ip_id = bswab16(inner_ip_hdr(skb)->id); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3581 | |
| 3582 | pbd_e2->data.tunnel_data.pseudo_csum = |
| 3583 | bswab16(~csum_tcpudp_magic( |
| 3584 | inner_ip_hdr(skb)->saddr, |
| 3585 | inner_ip_hdr(skb)->daddr, |
| 3586 | 0, IPPROTO_TCP, 0)); |
| 3587 | |
| 3588 | outerip_len = ip_hdr(skb)->ihl << 1; |
| 3589 | } else { |
| 3590 | pbd_e2->data.tunnel_data.pseudo_csum = |
| 3591 | bswab16(~csum_ipv6_magic( |
| 3592 | &inner_ipv6_hdr(skb)->saddr, |
| 3593 | &inner_ipv6_hdr(skb)->daddr, |
| 3594 | 0, IPPROTO_TCP, 0)); |
| 3595 | } |
| 3596 | |
| 3597 | outerip_off = (skb_network_header(skb) - skb->data) >> 1; |
| 3598 | |
| 3599 | *global_data |= |
| 3600 | outerip_off | |
| 3601 | (!!(xmit_type & XMIT_CSUM_V6) << |
| 3602 | ETH_TX_PARSE_2ND_BD_IP_HDR_TYPE_OUTER_SHIFT) | |
| 3603 | (outerip_len << |
| 3604 | ETH_TX_PARSE_2ND_BD_IP_HDR_LEN_OUTER_W_SHIFT) | |
| 3605 | ((skb->protocol == cpu_to_be16(ETH_P_8021Q)) << |
| 3606 | ETH_TX_PARSE_2ND_BD_LLC_SNAP_EN_SHIFT); |
Dmitry Kravkov | 65bc0cf | 2013-04-28 08:16:02 +0000 | [diff] [blame] | 3607 | |
| 3608 | if (ip_hdr(skb)->protocol == IPPROTO_UDP) { |
| 3609 | SET_FLAG(*global_data, ETH_TX_PARSE_2ND_BD_TUNNEL_UDP_EXIST, 1); |
| 3610 | pbd2->tunnel_udp_hdr_start_w = skb_transport_offset(skb) >> 1; |
| 3611 | } |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3612 | } |
| 3613 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3614 | /* called with netif_tx_lock |
| 3615 | * bnx2x_tx_int() runs without netif_tx_lock unless it needs to call |
| 3616 | * netif_wake_queue() |
| 3617 | */ |
| 3618 | netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 3619 | { |
| 3620 | struct bnx2x *bp = netdev_priv(dev); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3621 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3622 | struct netdev_queue *txq; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3623 | struct bnx2x_fp_txdata *txdata; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3624 | struct sw_tx_bd *tx_buf; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3625 | struct eth_tx_start_bd *tx_start_bd, *first_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3626 | struct eth_tx_bd *tx_data_bd, *total_pkt_bd = NULL; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3627 | struct eth_tx_parse_bd_e1x *pbd_e1x = NULL; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3628 | struct eth_tx_parse_bd_e2 *pbd_e2 = NULL; |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3629 | struct eth_tx_parse_2nd_bd *pbd2 = NULL; |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3630 | u32 pbd_e2_parsing_data = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3631 | u16 pkt_prod, bd_prod; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3632 | int nbd, txq_index; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3633 | dma_addr_t mapping; |
| 3634 | u32 xmit_type = bnx2x_xmit_type(bp, skb); |
| 3635 | int i; |
| 3636 | u8 hlen = 0; |
| 3637 | __le16 pkt_size = 0; |
| 3638 | struct ethhdr *eth; |
| 3639 | u8 mac_type = UNICAST_ADDRESS; |
| 3640 | |
| 3641 | #ifdef BNX2X_STOP_ON_ERROR |
| 3642 | if (unlikely(bp->panic)) |
| 3643 | return NETDEV_TX_BUSY; |
| 3644 | #endif |
| 3645 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3646 | txq_index = skb_get_queue_mapping(skb); |
| 3647 | txq = netdev_get_tx_queue(dev, txq_index); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3648 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3649 | 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] | 3650 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3651 | txdata = &bp->bnx2x_txq[txq_index]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3652 | |
| 3653 | /* enable this debug print to view the transmission queue being used |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3654 | 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] | 3655 | txq_index, fp_index, txdata_index); */ |
| 3656 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 3657 | /* enable this debug print to view the transmission details |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3658 | DP(NETIF_MSG_TX_QUEUED, |
| 3659 | "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] | 3660 | txdata->cid, fp_index, txdata_index, txdata, fp); */ |
| 3661 | |
| 3662 | if (unlikely(bnx2x_tx_avail(bp, txdata) < |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 3663 | skb_shinfo(skb)->nr_frags + |
| 3664 | BDS_PER_TX_PKT + |
| 3665 | NEXT_CNT_PER_TX_PKT(MAX_BDS_PER_TX_PKT))) { |
Dmitry Kravkov | 2384d6a | 2012-10-16 01:28:27 +0000 | [diff] [blame] | 3666 | /* Handle special storage cases separately */ |
Dmitry Kravkov | c96bdc0 | 2012-12-02 04:05:48 +0000 | [diff] [blame] | 3667 | if (txdata->tx_ring_size == 0) { |
| 3668 | struct bnx2x_eth_q_stats *q_stats = |
| 3669 | bnx2x_fp_qstats(bp, txdata->parent_fp); |
| 3670 | q_stats->driver_filtered_tx_pkt++; |
| 3671 | dev_kfree_skb(skb); |
| 3672 | return NETDEV_TX_OK; |
| 3673 | } |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 3674 | bnx2x_fp_qstats(bp, txdata->parent_fp)->driver_xoff++; |
| 3675 | netif_tx_stop_queue(txq); |
Dmitry Kravkov | c96bdc0 | 2012-12-02 04:05:48 +0000 | [diff] [blame] | 3676 | BNX2X_ERR("BUG! Tx ring full when queue awake!\n"); |
Dmitry Kravkov | 2384d6a | 2012-10-16 01:28:27 +0000 | [diff] [blame] | 3677 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3678 | return NETDEV_TX_BUSY; |
| 3679 | } |
| 3680 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3681 | DP(NETIF_MSG_TX_QUEUED, |
Yuval Mintz | 04c4673 | 2013-01-23 03:21:46 +0000 | [diff] [blame] | 3682 | "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] | 3683 | txq_index, skb->ip_summed, skb->protocol, ipv6_hdr(skb)->nexthdr, |
Yuval Mintz | 04c4673 | 2013-01-23 03:21:46 +0000 | [diff] [blame] | 3684 | ip_hdr(skb)->protocol, skb_shinfo(skb)->gso_type, xmit_type, |
| 3685 | skb->len); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3686 | |
| 3687 | eth = (struct ethhdr *)skb->data; |
| 3688 | |
| 3689 | /* set flag according to packet type (UNICAST_ADDRESS is default)*/ |
| 3690 | if (unlikely(is_multicast_ether_addr(eth->h_dest))) { |
| 3691 | if (is_broadcast_ether_addr(eth->h_dest)) |
| 3692 | mac_type = BROADCAST_ADDRESS; |
| 3693 | else |
| 3694 | mac_type = MULTICAST_ADDRESS; |
| 3695 | } |
| 3696 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3697 | #if (MAX_SKB_FRAGS >= MAX_FETCH_BD - BDS_PER_TX_PKT) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3698 | /* First, check if we need to linearize the skb (due to FW |
| 3699 | restrictions). No need to check fragmentation if page size > 8K |
| 3700 | (there will be no violation to FW restrictions) */ |
| 3701 | if (bnx2x_pkt_req_lin(bp, skb, xmit_type)) { |
| 3702 | /* Statistics of linearization */ |
| 3703 | bp->lin_cnt++; |
| 3704 | if (skb_linearize(skb) != 0) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3705 | DP(NETIF_MSG_TX_QUEUED, |
| 3706 | "SKB linearization failed - silently dropping this SKB\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3707 | dev_kfree_skb_any(skb); |
| 3708 | return NETDEV_TX_OK; |
| 3709 | } |
| 3710 | } |
| 3711 | #endif |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3712 | /* Map skb linear data for DMA */ |
| 3713 | mapping = dma_map_single(&bp->pdev->dev, skb->data, |
| 3714 | skb_headlen(skb), DMA_TO_DEVICE); |
| 3715 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3716 | DP(NETIF_MSG_TX_QUEUED, |
| 3717 | "SKB mapping failed - silently dropping this SKB\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3718 | dev_kfree_skb_any(skb); |
| 3719 | return NETDEV_TX_OK; |
| 3720 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3721 | /* |
| 3722 | Please read carefully. First we use one BD which we mark as start, |
| 3723 | then we have a parsing info BD (used for TSO or xsum), |
| 3724 | and only then we have the rest of the TSO BDs. |
| 3725 | (don't forget to mark the last one as last, |
| 3726 | and to unmap only AFTER you write to the BD ...) |
| 3727 | And above all, all pdb sizes are in words - NOT DWORDS! |
| 3728 | */ |
| 3729 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3730 | /* get current pkt produced now - advance it just before sending packet |
| 3731 | * since mapping of pages may fail and cause packet to be dropped |
| 3732 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3733 | pkt_prod = txdata->tx_pkt_prod; |
| 3734 | bd_prod = TX_BD(txdata->tx_bd_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3735 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3736 | /* get a tx_buf and first BD |
| 3737 | * tx_start_bd may be changed during SPLIT, |
| 3738 | * but first_bd will always stay first |
| 3739 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3740 | tx_buf = &txdata->tx_buf_ring[TX_BD(pkt_prod)]; |
| 3741 | tx_start_bd = &txdata->tx_desc_ring[bd_prod].start_bd; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3742 | first_bd = tx_start_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3743 | |
| 3744 | 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] | 3745 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3746 | /* header nbd: indirectly zero other flags! */ |
| 3747 | 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] | 3748 | |
| 3749 | /* remember the first BD of the packet */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3750 | tx_buf->first_bd = txdata->tx_bd_prod; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3751 | tx_buf->skb = skb; |
| 3752 | tx_buf->flags = 0; |
| 3753 | |
| 3754 | DP(NETIF_MSG_TX_QUEUED, |
| 3755 | "sending pkt %u @%p next_idx %u bd %u @%p\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3756 | 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] | 3757 | |
Jesse Gross | eab6d18 | 2010-10-20 13:56:03 +0000 | [diff] [blame] | 3758 | if (vlan_tx_tag_present(skb)) { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3759 | tx_start_bd->vlan_or_ethertype = |
| 3760 | cpu_to_le16(vlan_tx_tag_get(skb)); |
| 3761 | tx_start_bd->bd_flags.as_bitfield |= |
| 3762 | (X_ETH_OUTBAND_VLAN << ETH_TX_BD_FLAGS_VLAN_MODE_SHIFT); |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3763 | } else { |
| 3764 | /* when transmitting in a vf, start bd must hold the ethertype |
| 3765 | * for fw to enforce it |
| 3766 | */ |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3767 | if (IS_VF(bp)) |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3768 | tx_start_bd->vlan_or_ethertype = |
| 3769 | cpu_to_le16(ntohs(eth->h_proto)); |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3770 | else |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3771 | /* used by FW for packet accounting */ |
| 3772 | tx_start_bd->vlan_or_ethertype = cpu_to_le16(pkt_prod); |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3773 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3774 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3775 | nbd = 2; /* start_bd + pbd + frags (updated when pages are mapped) */ |
| 3776 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3777 | /* turn on parsing and get a BD */ |
| 3778 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3779 | |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3780 | if (xmit_type & XMIT_CSUM) |
| 3781 | bnx2x_set_sbd_csum(bp, skb, tx_start_bd, xmit_type); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3782 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3783 | if (!CHIP_IS_E1x(bp)) { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3784 | pbd_e2 = &txdata->tx_desc_ring[bd_prod].parse_bd_e2; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3785 | memset(pbd_e2, 0, sizeof(struct eth_tx_parse_bd_e2)); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3786 | |
| 3787 | if (xmit_type & XMIT_CSUM_ENC) { |
| 3788 | u16 global_data = 0; |
| 3789 | |
| 3790 | /* Set PBD in enc checksum offload case */ |
| 3791 | hlen = bnx2x_set_pbd_csum_enc(bp, skb, |
| 3792 | &pbd_e2_parsing_data, |
| 3793 | xmit_type); |
| 3794 | |
| 3795 | /* turn on 2nd parsing and get a BD */ |
| 3796 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
| 3797 | |
| 3798 | pbd2 = &txdata->tx_desc_ring[bd_prod].parse_2nd_bd; |
| 3799 | |
| 3800 | memset(pbd2, 0, sizeof(*pbd2)); |
| 3801 | |
| 3802 | pbd_e2->data.tunnel_data.ip_hdr_start_inner_w = |
| 3803 | (skb_inner_network_header(skb) - |
| 3804 | skb->data) >> 1; |
| 3805 | |
| 3806 | if (xmit_type & XMIT_GSO_ENC) |
| 3807 | bnx2x_update_pbds_gso_enc(skb, pbd_e2, pbd2, |
| 3808 | &global_data, |
| 3809 | xmit_type); |
| 3810 | |
| 3811 | pbd2->global_data = cpu_to_le16(global_data); |
| 3812 | |
| 3813 | /* add addition parse BD indication to start BD */ |
| 3814 | SET_FLAG(tx_start_bd->general_data, |
| 3815 | ETH_TX_START_BD_PARSE_NBDS, 1); |
| 3816 | /* set encapsulation flag in start BD */ |
| 3817 | SET_FLAG(tx_start_bd->general_data, |
| 3818 | ETH_TX_START_BD_TUNNEL_EXIST, 1); |
| 3819 | nbd++; |
| 3820 | } else if (xmit_type & XMIT_CSUM) { |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3821 | /* Set PBD in checksum offload case w/o encapsulation */ |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3822 | hlen = bnx2x_set_pbd_csum_e2(bp, skb, |
| 3823 | &pbd_e2_parsing_data, |
| 3824 | xmit_type); |
Dmitry Kravkov | a848ade | 2013-03-18 06:51:03 +0000 | [diff] [blame] | 3825 | } |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3826 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3827 | /* Add the macs to the parsing BD this is a vf */ |
| 3828 | if (IS_VF(bp)) { |
| 3829 | /* override GRE parameters in BD */ |
| 3830 | bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.src_hi, |
| 3831 | &pbd_e2->data.mac_addr.src_mid, |
| 3832 | &pbd_e2->data.mac_addr.src_lo, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3833 | eth->h_source); |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3834 | |
| 3835 | bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.dst_hi, |
| 3836 | &pbd_e2->data.mac_addr.dst_mid, |
| 3837 | &pbd_e2->data.mac_addr.dst_lo, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3838 | eth->h_dest); |
| 3839 | } |
Yuval Mintz | 96bed4b | 2012-10-01 03:46:19 +0000 | [diff] [blame] | 3840 | |
| 3841 | SET_FLAG(pbd_e2_parsing_data, |
| 3842 | ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE, mac_type); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3843 | } else { |
Yuval Mintz | 96bed4b | 2012-10-01 03:46:19 +0000 | [diff] [blame] | 3844 | u16 global_data = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3845 | pbd_e1x = &txdata->tx_desc_ring[bd_prod].parse_bd_e1x; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3846 | memset(pbd_e1x, 0, sizeof(struct eth_tx_parse_bd_e1x)); |
| 3847 | /* Set PBD in checksum offload case */ |
| 3848 | if (xmit_type & XMIT_CSUM) |
| 3849 | hlen = bnx2x_set_pbd_csum(bp, skb, pbd_e1x, xmit_type); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3850 | |
Yuval Mintz | 96bed4b | 2012-10-01 03:46:19 +0000 | [diff] [blame] | 3851 | SET_FLAG(global_data, |
| 3852 | ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE, mac_type); |
| 3853 | pbd_e1x->global_data |= cpu_to_le16(global_data); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3854 | } |
| 3855 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3856 | /* Setup the data pointer of the first BD of the packet */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3857 | tx_start_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 3858 | tx_start_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3859 | tx_start_bd->nbytes = cpu_to_le16(skb_headlen(skb)); |
| 3860 | pkt_size = tx_start_bd->nbytes; |
| 3861 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3862 | DP(NETIF_MSG_TX_QUEUED, |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3863 | "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] | 3864 | 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] | 3865 | le16_to_cpu(tx_start_bd->nbytes), |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3866 | tx_start_bd->bd_flags.as_bitfield, |
| 3867 | le16_to_cpu(tx_start_bd->vlan_or_ethertype)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3868 | |
| 3869 | if (xmit_type & XMIT_GSO) { |
| 3870 | |
| 3871 | DP(NETIF_MSG_TX_QUEUED, |
| 3872 | "TSO packet len %d hlen %d total len %d tso size %d\n", |
| 3873 | skb->len, hlen, skb_headlen(skb), |
| 3874 | skb_shinfo(skb)->gso_size); |
| 3875 | |
| 3876 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_SW_LSO; |
| 3877 | |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3878 | if (unlikely(skb_headlen(skb) > hlen)) { |
| 3879 | nbd++; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3880 | bd_prod = bnx2x_tx_split(bp, txdata, tx_buf, |
| 3881 | &tx_start_bd, hlen, |
Dmitry Kravkov | 9122679 | 2013-03-11 05:17:52 +0000 | [diff] [blame] | 3882 | bd_prod); |
| 3883 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3884 | if (!CHIP_IS_E1x(bp)) |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3885 | bnx2x_set_pbd_gso_e2(skb, &pbd_e2_parsing_data, |
| 3886 | xmit_type); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3887 | else |
Yuval Mintz | 44dbc78 | 2013-06-03 02:59:57 +0000 | [diff] [blame] | 3888 | bnx2x_set_pbd_gso(skb, pbd_e1x, first_bd, xmit_type); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3889 | } |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3890 | |
| 3891 | /* Set the PBD's parsing_data field if not zero |
| 3892 | * (for the chips newer than 57711). |
| 3893 | */ |
| 3894 | if (pbd_e2_parsing_data) |
| 3895 | pbd_e2->parsing_data = cpu_to_le32(pbd_e2_parsing_data); |
| 3896 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3897 | tx_data_bd = (struct eth_tx_bd *)tx_start_bd; |
| 3898 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3899 | /* Handle fragmented skb */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3900 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| 3901 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
| 3902 | |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3903 | mapping = skb_frag_dma_map(&bp->pdev->dev, frag, 0, |
| 3904 | skb_frag_size(frag), DMA_TO_DEVICE); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3905 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 3906 | unsigned int pkts_compl = 0, bytes_compl = 0; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3907 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3908 | DP(NETIF_MSG_TX_QUEUED, |
| 3909 | "Unable to map page - dropping packet...\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3910 | |
| 3911 | /* we need unmap all buffers already mapped |
| 3912 | * for this SKB; |
| 3913 | * first_bd->nbd need to be properly updated |
| 3914 | * before call to bnx2x_free_tx_pkt |
| 3915 | */ |
| 3916 | first_bd->nbd = cpu_to_le16(nbd); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3917 | bnx2x_free_tx_pkt(bp, txdata, |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 3918 | TX_BD(txdata->tx_pkt_prod), |
| 3919 | &pkts_compl, &bytes_compl); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3920 | return NETDEV_TX_OK; |
| 3921 | } |
| 3922 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3923 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3924 | tx_data_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3925 | if (total_pkt_bd == NULL) |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3926 | total_pkt_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3927 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3928 | tx_data_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 3929 | tx_data_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3930 | tx_data_bd->nbytes = cpu_to_le16(skb_frag_size(frag)); |
| 3931 | le16_add_cpu(&pkt_size, skb_frag_size(frag)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3932 | nbd++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3933 | |
| 3934 | DP(NETIF_MSG_TX_QUEUED, |
| 3935 | "frag %d bd @%p addr (%x:%x) nbytes %d\n", |
| 3936 | i, tx_data_bd, tx_data_bd->addr_hi, tx_data_bd->addr_lo, |
| 3937 | le16_to_cpu(tx_data_bd->nbytes)); |
| 3938 | } |
| 3939 | |
| 3940 | DP(NETIF_MSG_TX_QUEUED, "last bd @%p\n", tx_data_bd); |
| 3941 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3942 | /* update with actual num BDs */ |
| 3943 | first_bd->nbd = cpu_to_le16(nbd); |
| 3944 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3945 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
| 3946 | |
| 3947 | /* now send a tx doorbell, counting the next BD |
| 3948 | * if the packet contains or ends with it |
| 3949 | */ |
| 3950 | if (TX_BD_POFF(bd_prod) < nbd) |
| 3951 | nbd++; |
| 3952 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3953 | /* total_pkt_bytes should be set on the first data BD if |
| 3954 | * it's not an LSO packet and there is more than one |
| 3955 | * data BD. In this case pkt_size is limited by an MTU value. |
| 3956 | * However we prefer to set it for an LSO packet (while we don't |
| 3957 | * have to) in order to save some CPU cycles in a none-LSO |
| 3958 | * case, when we much more care about them. |
| 3959 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3960 | if (total_pkt_bd != NULL) |
| 3961 | total_pkt_bd->total_pkt_bytes = pkt_size; |
| 3962 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3963 | if (pbd_e1x) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3964 | DP(NETIF_MSG_TX_QUEUED, |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3965 | "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] | 3966 | pbd_e1x, pbd_e1x->global_data, pbd_e1x->ip_hlen_w, |
| 3967 | pbd_e1x->ip_id, pbd_e1x->lso_mss, pbd_e1x->tcp_flags, |
| 3968 | pbd_e1x->tcp_pseudo_csum, pbd_e1x->tcp_send_seq, |
| 3969 | le16_to_cpu(pbd_e1x->total_hlen_w)); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3970 | if (pbd_e2) |
| 3971 | DP(NETIF_MSG_TX_QUEUED, |
| 3972 | "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] | 3973 | pbd_e2, |
| 3974 | pbd_e2->data.mac_addr.dst_hi, |
| 3975 | pbd_e2->data.mac_addr.dst_mid, |
| 3976 | pbd_e2->data.mac_addr.dst_lo, |
| 3977 | pbd_e2->data.mac_addr.src_hi, |
| 3978 | pbd_e2->data.mac_addr.src_mid, |
| 3979 | pbd_e2->data.mac_addr.src_lo, |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3980 | pbd_e2->parsing_data); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3981 | DP(NETIF_MSG_TX_QUEUED, "doorbell: nbd %d bd %u\n", nbd, bd_prod); |
| 3982 | |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 3983 | netdev_tx_sent_queue(txq, skb->len); |
| 3984 | |
Willem de Bruijn | 8373c57 | 2012-04-27 09:04:06 +0000 | [diff] [blame] | 3985 | skb_tx_timestamp(skb); |
| 3986 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3987 | txdata->tx_pkt_prod++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3988 | /* |
| 3989 | * Make sure that the BD data is updated before updating the producer |
| 3990 | * since FW might read the BD right after the producer is updated. |
| 3991 | * This is only applicable for weak-ordered memory model archs such |
| 3992 | * as IA-64. The following barrier is also mandatory since FW will |
| 3993 | * assumes packets must have BDs. |
| 3994 | */ |
| 3995 | wmb(); |
| 3996 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3997 | txdata->tx_db.data.prod += nbd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3998 | barrier(); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3999 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4000 | DOORBELL(bp, txdata->cid, txdata->tx_db.raw); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4001 | |
| 4002 | mmiowb(); |
| 4003 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4004 | txdata->tx_bd_prod += nbd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4005 | |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 4006 | if (unlikely(bnx2x_tx_avail(bp, txdata) < MAX_DESC_PER_TX_PKT)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4007 | netif_tx_stop_queue(txq); |
| 4008 | |
| 4009 | /* paired memory barrier is in bnx2x_tx_int(), we have to keep |
| 4010 | * ordering of set_bit() in netif_tx_stop_queue() and read of |
| 4011 | * fp->bd_tx_cons */ |
| 4012 | smp_mb(); |
| 4013 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4014 | bnx2x_fp_qstats(bp, txdata->parent_fp)->driver_xoff++; |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 4015 | if (bnx2x_tx_avail(bp, txdata) >= MAX_DESC_PER_TX_PKT) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4016 | netif_tx_wake_queue(txq); |
| 4017 | } |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4018 | txdata->tx_pkt++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4019 | |
| 4020 | return NETDEV_TX_OK; |
| 4021 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 4022 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4023 | /** |
| 4024 | * bnx2x_setup_tc - routine to configure net_device for multi tc |
| 4025 | * |
| 4026 | * @netdev: net device to configure |
| 4027 | * @tc: number of traffic classes to enable |
| 4028 | * |
| 4029 | * callback connected to the ndo_setup_tc function pointer |
| 4030 | */ |
| 4031 | int bnx2x_setup_tc(struct net_device *dev, u8 num_tc) |
| 4032 | { |
| 4033 | int cos, prio, count, offset; |
| 4034 | struct bnx2x *bp = netdev_priv(dev); |
| 4035 | |
| 4036 | /* setup tc must be called under rtnl lock */ |
| 4037 | ASSERT_RTNL(); |
| 4038 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 4039 | /* no traffic classes requested. Aborting */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4040 | if (!num_tc) { |
| 4041 | netdev_reset_tc(dev); |
| 4042 | return 0; |
| 4043 | } |
| 4044 | |
| 4045 | /* requested to support too many traffic classes */ |
| 4046 | if (num_tc > bp->max_cos) { |
Yuval Mintz | 6bf07b8 | 2013-06-02 00:06:20 +0000 | [diff] [blame] | 4047 | 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] | 4048 | num_tc, bp->max_cos); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4049 | return -EINVAL; |
| 4050 | } |
| 4051 | |
| 4052 | /* declare amount of supported traffic classes */ |
| 4053 | if (netdev_set_num_tc(dev, num_tc)) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4054 | BNX2X_ERR("failed to declare %d traffic classes\n", num_tc); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4055 | return -EINVAL; |
| 4056 | } |
| 4057 | |
| 4058 | /* configure priority to traffic class mapping */ |
| 4059 | for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) { |
| 4060 | netdev_set_prio_tc_map(dev, prio, bp->prio_to_cos[prio]); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4061 | DP(BNX2X_MSG_SP | NETIF_MSG_IFUP, |
| 4062 | "mapping priority %d to tc %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4063 | prio, bp->prio_to_cos[prio]); |
| 4064 | } |
| 4065 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 4066 | /* Use this configuration to differentiate tc0 from other COSes |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4067 | This can be used for ets or pfc, and save the effort of setting |
| 4068 | up a multio class queue disc or negotiating DCBX with a switch |
| 4069 | netdev_set_prio_tc_map(dev, 0, 0); |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 4070 | 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] | 4071 | for (prio = 1; prio < 16; prio++) { |
| 4072 | netdev_set_prio_tc_map(dev, prio, 1); |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 4073 | 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] | 4074 | } */ |
| 4075 | |
| 4076 | /* configure traffic class to transmission queue mapping */ |
| 4077 | for (cos = 0; cos < bp->max_cos; cos++) { |
| 4078 | count = BNX2X_NUM_ETH_QUEUES(bp); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4079 | offset = cos * BNX2X_NUM_NON_CNIC_QUEUES(bp); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4080 | netdev_set_tc_queue(dev, cos, count, offset); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4081 | DP(BNX2X_MSG_SP | NETIF_MSG_IFUP, |
| 4082 | "mapping tc %d to offset %d count %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4083 | cos, offset, count); |
| 4084 | } |
| 4085 | |
| 4086 | return 0; |
| 4087 | } |
| 4088 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4089 | /* called with rtnl_lock */ |
| 4090 | int bnx2x_change_mac_addr(struct net_device *dev, void *p) |
| 4091 | { |
| 4092 | struct sockaddr *addr = p; |
| 4093 | struct bnx2x *bp = netdev_priv(dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4094 | int rc = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4095 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4096 | if (!bnx2x_is_valid_ether_addr(bp, addr->sa_data)) { |
| 4097 | BNX2X_ERR("Requested MAC address is not valid\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4098 | return -EINVAL; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4099 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4100 | |
Barak Witkowski | a334872 | 2012-04-23 03:04:46 +0000 | [diff] [blame] | 4101 | if ((IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp)) && |
| 4102 | !is_zero_ether_addr(addr->sa_data)) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4103 | 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] | 4104 | return -EINVAL; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4105 | } |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 4106 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4107 | if (netif_running(dev)) { |
| 4108 | rc = bnx2x_set_eth_mac(bp, false); |
| 4109 | if (rc) |
| 4110 | return rc; |
| 4111 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4112 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4113 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
| 4114 | |
| 4115 | if (netif_running(dev)) |
| 4116 | rc = bnx2x_set_eth_mac(bp, true); |
| 4117 | |
| 4118 | return rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4119 | } |
| 4120 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4121 | static void bnx2x_free_fp_mem_at(struct bnx2x *bp, int fp_index) |
| 4122 | { |
| 4123 | union host_hc_status_block *sb = &bnx2x_fp(bp, fp_index, status_blk); |
| 4124 | struct bnx2x_fastpath *fp = &bp->fp[fp_index]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4125 | u8 cos; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4126 | |
| 4127 | /* Common */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4128 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4129 | if (IS_FCOE_IDX(fp_index)) { |
| 4130 | memset(sb, 0, sizeof(union host_hc_status_block)); |
| 4131 | fp->status_blk_mapping = 0; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4132 | } else { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4133 | /* status blocks */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4134 | if (!CHIP_IS_E1x(bp)) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4135 | BNX2X_PCI_FREE(sb->e2_sb, |
| 4136 | bnx2x_fp(bp, fp_index, |
| 4137 | status_blk_mapping), |
| 4138 | sizeof(struct host_hc_status_block_e2)); |
| 4139 | else |
| 4140 | BNX2X_PCI_FREE(sb->e1x_sb, |
| 4141 | bnx2x_fp(bp, fp_index, |
| 4142 | status_blk_mapping), |
| 4143 | sizeof(struct host_hc_status_block_e1x)); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4144 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4145 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4146 | /* Rx */ |
| 4147 | if (!skip_rx_queue(bp, fp_index)) { |
| 4148 | bnx2x_free_rx_bds(fp); |
| 4149 | |
| 4150 | /* fastpath rx rings: rx_buf rx_desc rx_comp */ |
| 4151 | BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_buf_ring)); |
| 4152 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_desc_ring), |
| 4153 | bnx2x_fp(bp, fp_index, rx_desc_mapping), |
| 4154 | sizeof(struct eth_rx_bd) * NUM_RX_BD); |
| 4155 | |
| 4156 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_comp_ring), |
| 4157 | bnx2x_fp(bp, fp_index, rx_comp_mapping), |
| 4158 | sizeof(struct eth_fast_path_rx_cqe) * |
| 4159 | NUM_RCQ_BD); |
| 4160 | |
| 4161 | /* SGE ring */ |
| 4162 | BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_page_ring)); |
| 4163 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_sge_ring), |
| 4164 | bnx2x_fp(bp, fp_index, rx_sge_mapping), |
| 4165 | BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); |
| 4166 | } |
| 4167 | |
| 4168 | /* Tx */ |
| 4169 | if (!skip_tx_queue(bp, fp_index)) { |
| 4170 | /* fastpath tx rings: tx_buf tx_desc */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4171 | for_each_cos_in_tx_queue(fp, cos) { |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4172 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4173 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4174 | DP(NETIF_MSG_IFDOWN, |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 4175 | "freeing tx memory of fp %d cos %d cid %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4176 | fp_index, cos, txdata->cid); |
| 4177 | |
| 4178 | BNX2X_FREE(txdata->tx_buf_ring); |
| 4179 | BNX2X_PCI_FREE(txdata->tx_desc_ring, |
| 4180 | txdata->tx_desc_mapping, |
| 4181 | sizeof(union eth_tx_bd_types) * NUM_TX_BD); |
| 4182 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4183 | } |
| 4184 | /* end of fastpath */ |
| 4185 | } |
| 4186 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4187 | void bnx2x_free_fp_mem_cnic(struct bnx2x *bp) |
| 4188 | { |
| 4189 | int i; |
| 4190 | for_each_cnic_queue(bp, i) |
| 4191 | bnx2x_free_fp_mem_at(bp, i); |
| 4192 | } |
| 4193 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4194 | void bnx2x_free_fp_mem(struct bnx2x *bp) |
| 4195 | { |
| 4196 | int i; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4197 | for_each_eth_queue(bp, i) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4198 | bnx2x_free_fp_mem_at(bp, i); |
| 4199 | } |
| 4200 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4201 | static void set_sb_shortcuts(struct bnx2x *bp, int index) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4202 | { |
| 4203 | 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] | 4204 | if (!CHIP_IS_E1x(bp)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4205 | bnx2x_fp(bp, index, sb_index_values) = |
| 4206 | (__le16 *)status_blk.e2_sb->sb.index_values; |
| 4207 | bnx2x_fp(bp, index, sb_running_index) = |
| 4208 | (__le16 *)status_blk.e2_sb->sb.running_index; |
| 4209 | } else { |
| 4210 | bnx2x_fp(bp, index, sb_index_values) = |
| 4211 | (__le16 *)status_blk.e1x_sb->sb.index_values; |
| 4212 | bnx2x_fp(bp, index, sb_running_index) = |
| 4213 | (__le16 *)status_blk.e1x_sb->sb.running_index; |
| 4214 | } |
| 4215 | } |
| 4216 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4217 | /* Returns the number of actually allocated BDs */ |
| 4218 | static int bnx2x_alloc_rx_bds(struct bnx2x_fastpath *fp, |
| 4219 | int rx_ring_size) |
| 4220 | { |
| 4221 | struct bnx2x *bp = fp->bp; |
| 4222 | u16 ring_prod, cqe_ring_prod; |
| 4223 | int i, failure_cnt = 0; |
| 4224 | |
| 4225 | fp->rx_comp_cons = 0; |
| 4226 | cqe_ring_prod = ring_prod = 0; |
| 4227 | |
| 4228 | /* This routine is called only during fo init so |
| 4229 | * fp->eth_q_stats.rx_skb_alloc_failed = 0 |
| 4230 | */ |
| 4231 | for (i = 0; i < rx_ring_size; i++) { |
Michal Schmidt | 996dedb | 2013-09-05 22:13:09 +0200 | [diff] [blame^] | 4232 | if (bnx2x_alloc_rx_data(bp, fp, ring_prod, GFP_KERNEL) < 0) { |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4233 | failure_cnt++; |
| 4234 | continue; |
| 4235 | } |
| 4236 | ring_prod = NEXT_RX_IDX(ring_prod); |
| 4237 | cqe_ring_prod = NEXT_RCQ_IDX(cqe_ring_prod); |
| 4238 | WARN_ON(ring_prod <= (i - failure_cnt)); |
| 4239 | } |
| 4240 | |
| 4241 | if (failure_cnt) |
| 4242 | BNX2X_ERR("was only able to allocate %d rx skbs on queue[%d]\n", |
| 4243 | i - failure_cnt, fp->index); |
| 4244 | |
| 4245 | fp->rx_bd_prod = ring_prod; |
| 4246 | /* Limit the CQE producer by the CQE ring size */ |
| 4247 | fp->rx_comp_prod = min_t(u16, NUM_RCQ_RINGS*RCQ_DESC_CNT, |
| 4248 | cqe_ring_prod); |
| 4249 | fp->rx_pkt = fp->rx_calls = 0; |
| 4250 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4251 | 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] | 4252 | |
| 4253 | return i - failure_cnt; |
| 4254 | } |
| 4255 | |
| 4256 | static void bnx2x_set_next_page_rx_cq(struct bnx2x_fastpath *fp) |
| 4257 | { |
| 4258 | int i; |
| 4259 | |
| 4260 | for (i = 1; i <= NUM_RCQ_RINGS; i++) { |
| 4261 | struct eth_rx_cqe_next_page *nextpg; |
| 4262 | |
| 4263 | nextpg = (struct eth_rx_cqe_next_page *) |
| 4264 | &fp->rx_comp_ring[RCQ_DESC_CNT * i - 1]; |
| 4265 | nextpg->addr_hi = |
| 4266 | cpu_to_le32(U64_HI(fp->rx_comp_mapping + |
| 4267 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); |
| 4268 | nextpg->addr_lo = |
| 4269 | cpu_to_le32(U64_LO(fp->rx_comp_mapping + |
| 4270 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); |
| 4271 | } |
| 4272 | } |
| 4273 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4274 | static int bnx2x_alloc_fp_mem_at(struct bnx2x *bp, int index) |
| 4275 | { |
| 4276 | union host_hc_status_block *sb; |
| 4277 | struct bnx2x_fastpath *fp = &bp->fp[index]; |
| 4278 | int ring_size = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4279 | u8 cos; |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4280 | int rx_ring_size = 0; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4281 | |
Barak Witkowski | a334872 | 2012-04-23 03:04:46 +0000 | [diff] [blame] | 4282 | if (!bp->rx_ring_size && |
| 4283 | (IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp))) { |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 4284 | rx_ring_size = MIN_RX_SIZE_NONTPA; |
| 4285 | bp->rx_ring_size = rx_ring_size; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4286 | } else if (!bp->rx_ring_size) { |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4287 | rx_ring_size = MAX_RX_AVAIL/BNX2X_NUM_RX_QUEUES(bp); |
| 4288 | |
Yuval Mintz | 065f8b9 | 2012-10-03 04:22:59 +0000 | [diff] [blame] | 4289 | if (CHIP_IS_E3(bp)) { |
| 4290 | u32 cfg = SHMEM_RD(bp, |
| 4291 | dev_info.port_hw_config[BP_PORT(bp)]. |
| 4292 | default_cfg); |
| 4293 | |
| 4294 | /* Decrease ring size for 1G functions */ |
| 4295 | if ((cfg & PORT_HW_CFG_NET_SERDES_IF_MASK) == |
| 4296 | PORT_HW_CFG_NET_SERDES_IF_SGMII) |
| 4297 | rx_ring_size /= 10; |
| 4298 | } |
Mintz Yuval | d760fc3 | 2012-02-15 02:10:28 +0000 | [diff] [blame] | 4299 | |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4300 | /* allocate at least number of buffers required by FW */ |
| 4301 | rx_ring_size = max_t(int, bp->disable_tpa ? MIN_RX_SIZE_NONTPA : |
| 4302 | MIN_RX_SIZE_TPA, rx_ring_size); |
| 4303 | |
| 4304 | bp->rx_ring_size = rx_ring_size; |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 4305 | } else /* if rx_ring_size specified - use it */ |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4306 | rx_ring_size = bp->rx_ring_size; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4307 | |
Yuval Mintz | 04c4673 | 2013-01-23 03:21:46 +0000 | [diff] [blame] | 4308 | DP(BNX2X_MSG_SP, "calculated rx_ring_size %d\n", rx_ring_size); |
| 4309 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4310 | /* Common */ |
| 4311 | sb = &bnx2x_fp(bp, index, status_blk); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4312 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4313 | if (!IS_FCOE_IDX(index)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4314 | /* status blocks */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4315 | if (!CHIP_IS_E1x(bp)) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4316 | BNX2X_PCI_ALLOC(sb->e2_sb, |
| 4317 | &bnx2x_fp(bp, index, status_blk_mapping), |
| 4318 | sizeof(struct host_hc_status_block_e2)); |
| 4319 | else |
| 4320 | BNX2X_PCI_ALLOC(sb->e1x_sb, |
| 4321 | &bnx2x_fp(bp, index, status_blk_mapping), |
| 4322 | sizeof(struct host_hc_status_block_e1x)); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4323 | } |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 4324 | |
| 4325 | /* FCoE Queue uses Default SB and doesn't ACK the SB, thus no need to |
| 4326 | * set shortcuts for it. |
| 4327 | */ |
| 4328 | if (!IS_FCOE_IDX(index)) |
| 4329 | set_sb_shortcuts(bp, index); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4330 | |
| 4331 | /* Tx */ |
| 4332 | if (!skip_tx_queue(bp, index)) { |
| 4333 | /* fastpath tx rings: tx_buf tx_desc */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4334 | for_each_cos_in_tx_queue(fp, cos) { |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4335 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4336 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4337 | DP(NETIF_MSG_IFUP, |
| 4338 | "allocating tx memory of fp %d cos %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4339 | index, cos); |
| 4340 | |
| 4341 | BNX2X_ALLOC(txdata->tx_buf_ring, |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4342 | sizeof(struct sw_tx_bd) * NUM_TX_BD); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4343 | BNX2X_PCI_ALLOC(txdata->tx_desc_ring, |
| 4344 | &txdata->tx_desc_mapping, |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4345 | sizeof(union eth_tx_bd_types) * NUM_TX_BD); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4346 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4347 | } |
| 4348 | |
| 4349 | /* Rx */ |
| 4350 | if (!skip_rx_queue(bp, index)) { |
| 4351 | /* fastpath rx rings: rx_buf rx_desc rx_comp */ |
| 4352 | BNX2X_ALLOC(bnx2x_fp(bp, index, rx_buf_ring), |
| 4353 | sizeof(struct sw_rx_bd) * NUM_RX_BD); |
| 4354 | BNX2X_PCI_ALLOC(bnx2x_fp(bp, index, rx_desc_ring), |
| 4355 | &bnx2x_fp(bp, index, rx_desc_mapping), |
| 4356 | sizeof(struct eth_rx_bd) * NUM_RX_BD); |
| 4357 | |
Dmitry Kravkov | 75b2945 | 2013-06-19 01:36:05 +0300 | [diff] [blame] | 4358 | /* Seed all CQEs by 1s */ |
| 4359 | BNX2X_PCI_FALLOC(bnx2x_fp(bp, index, rx_comp_ring), |
| 4360 | &bnx2x_fp(bp, index, rx_comp_mapping), |
| 4361 | sizeof(struct eth_fast_path_rx_cqe) * |
| 4362 | NUM_RCQ_BD); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4363 | |
| 4364 | /* SGE ring */ |
| 4365 | BNX2X_ALLOC(bnx2x_fp(bp, index, rx_page_ring), |
| 4366 | sizeof(struct sw_rx_page) * NUM_RX_SGE); |
| 4367 | BNX2X_PCI_ALLOC(bnx2x_fp(bp, index, rx_sge_ring), |
| 4368 | &bnx2x_fp(bp, index, rx_sge_mapping), |
| 4369 | BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); |
| 4370 | /* RX BD ring */ |
| 4371 | bnx2x_set_next_page_rx_bd(fp); |
| 4372 | |
| 4373 | /* CQ ring */ |
| 4374 | bnx2x_set_next_page_rx_cq(fp); |
| 4375 | |
| 4376 | /* BDs */ |
| 4377 | ring_size = bnx2x_alloc_rx_bds(fp, rx_ring_size); |
| 4378 | if (ring_size < rx_ring_size) |
| 4379 | goto alloc_mem_err; |
| 4380 | } |
| 4381 | |
| 4382 | return 0; |
| 4383 | |
| 4384 | /* handles low memory cases */ |
| 4385 | alloc_mem_err: |
| 4386 | BNX2X_ERR("Unable to allocate full memory for queue %d (size %d)\n", |
| 4387 | index, ring_size); |
| 4388 | /* FW will drop all packets if queue is not big enough, |
| 4389 | * In these cases we disable the queue |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4390 | * Min size is different for OOO, TPA and non-TPA queues |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4391 | */ |
| 4392 | if (ring_size < (fp->disable_tpa ? |
Dmitry Kravkov | eb722d7 | 2011-05-24 02:06:06 +0000 | [diff] [blame] | 4393 | MIN_RX_SIZE_NONTPA : MIN_RX_SIZE_TPA)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4394 | /* release memory allocated for this queue */ |
| 4395 | bnx2x_free_fp_mem_at(bp, index); |
| 4396 | return -ENOMEM; |
| 4397 | } |
| 4398 | return 0; |
| 4399 | } |
| 4400 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4401 | int bnx2x_alloc_fp_mem_cnic(struct bnx2x *bp) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4402 | { |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 4403 | if (!NO_FCOE(bp)) |
| 4404 | /* FCoE */ |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4405 | if (bnx2x_alloc_fp_mem_at(bp, FCOE_IDX(bp))) |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 4406 | /* we will fail load process instead of mark |
| 4407 | * NO_FCOE_FLAG |
| 4408 | */ |
| 4409 | return -ENOMEM; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4410 | |
| 4411 | return 0; |
| 4412 | } |
| 4413 | |
| 4414 | int bnx2x_alloc_fp_mem(struct bnx2x *bp) |
| 4415 | { |
| 4416 | int i; |
| 4417 | |
| 4418 | /* 1. Allocate FP for leading - fatal if error |
| 4419 | * 2. Allocate RSS - fix number of queues if error |
| 4420 | */ |
| 4421 | |
| 4422 | /* leading */ |
| 4423 | if (bnx2x_alloc_fp_mem_at(bp, 0)) |
| 4424 | return -ENOMEM; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4425 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4426 | /* RSS */ |
| 4427 | for_each_nondefault_eth_queue(bp, i) |
| 4428 | if (bnx2x_alloc_fp_mem_at(bp, i)) |
| 4429 | break; |
| 4430 | |
| 4431 | /* handle memory failures */ |
| 4432 | if (i != BNX2X_NUM_ETH_QUEUES(bp)) { |
| 4433 | int delta = BNX2X_NUM_ETH_QUEUES(bp) - i; |
| 4434 | |
| 4435 | WARN_ON(delta < 0); |
Yuval Mintz | 4864a16 | 2013-01-10 04:53:39 +0000 | [diff] [blame] | 4436 | bnx2x_shrink_eth_fp(bp, delta); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4437 | if (CNIC_SUPPORT(bp)) |
| 4438 | /* move non eth FPs next to last eth FP |
| 4439 | * must be done in that order |
| 4440 | * FCOE_IDX < FWD_IDX < OOO_IDX |
| 4441 | */ |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4442 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4443 | /* move FCoE fp even NO_FCOE_FLAG is on */ |
| 4444 | bnx2x_move_fp(bp, FCOE_IDX(bp), FCOE_IDX(bp) - delta); |
| 4445 | bp->num_ethernet_queues -= delta; |
| 4446 | bp->num_queues = bp->num_ethernet_queues + |
| 4447 | bp->num_cnic_queues; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4448 | BNX2X_ERR("Adjusted num of queues from %d to %d\n", |
| 4449 | bp->num_queues + delta, bp->num_queues); |
| 4450 | } |
| 4451 | |
| 4452 | return 0; |
| 4453 | } |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 4454 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4455 | void bnx2x_free_mem_bp(struct bnx2x *bp) |
| 4456 | { |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4457 | int i; |
| 4458 | |
| 4459 | for (i = 0; i < bp->fp_array_size; i++) |
| 4460 | kfree(bp->fp[i].tpa_info); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4461 | kfree(bp->fp); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4462 | kfree(bp->sp_objs); |
| 4463 | kfree(bp->fp_stats); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4464 | kfree(bp->bnx2x_txq); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4465 | kfree(bp->msix_table); |
| 4466 | kfree(bp->ilt); |
| 4467 | } |
| 4468 | |
Bill Pemberton | 0329aba | 2012-12-03 09:24:24 -0500 | [diff] [blame] | 4469 | int bnx2x_alloc_mem_bp(struct bnx2x *bp) |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4470 | { |
| 4471 | struct bnx2x_fastpath *fp; |
| 4472 | struct msix_entry *tbl; |
| 4473 | struct bnx2x_ilt *ilt; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4474 | int msix_table_size = 0; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4475 | int fp_array_size, txq_array_size; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4476 | int i; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4477 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4478 | /* |
| 4479 | * 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] | 4480 | * path IGU SBs plus default SB (for PF only). |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4481 | */ |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 4482 | msix_table_size = bp->igu_sb_cnt; |
| 4483 | if (IS_PF(bp)) |
| 4484 | msix_table_size++; |
| 4485 | BNX2X_DEV_INFO("msix_table_size %d\n", msix_table_size); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4486 | |
| 4487 | /* fp array: RSS plus CNIC related L2 queues */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4488 | fp_array_size = BNX2X_MAX_RSS_COUNT(bp) + CNIC_SUPPORT(bp); |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4489 | bp->fp_array_size = fp_array_size; |
| 4490 | BNX2X_DEV_INFO("fp_array_size %d\n", bp->fp_array_size); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4491 | |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4492 | fp = kcalloc(bp->fp_array_size, sizeof(*fp), GFP_KERNEL); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4493 | if (!fp) |
| 4494 | goto alloc_err; |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4495 | for (i = 0; i < bp->fp_array_size; i++) { |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4496 | fp[i].tpa_info = |
| 4497 | kcalloc(ETH_MAX_AGGREGATION_QUEUES_E1H_E2, |
| 4498 | sizeof(struct bnx2x_agg_info), GFP_KERNEL); |
| 4499 | if (!(fp[i].tpa_info)) |
| 4500 | goto alloc_err; |
| 4501 | } |
| 4502 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4503 | bp->fp = fp; |
| 4504 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4505 | /* allocate sp objs */ |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4506 | 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] | 4507 | GFP_KERNEL); |
| 4508 | if (!bp->sp_objs) |
| 4509 | goto alloc_err; |
| 4510 | |
| 4511 | /* allocate fp_stats */ |
Dmitry Kravkov | c3146eb | 2013-01-23 03:21:48 +0000 | [diff] [blame] | 4512 | 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] | 4513 | GFP_KERNEL); |
| 4514 | if (!bp->fp_stats) |
| 4515 | goto alloc_err; |
| 4516 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4517 | /* Allocate memory for the transmission queues array */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4518 | txq_array_size = |
| 4519 | BNX2X_MAX_RSS_COUNT(bp) * BNX2X_MULTI_TX_COS + CNIC_SUPPORT(bp); |
| 4520 | BNX2X_DEV_INFO("txq_array_size %d", txq_array_size); |
| 4521 | |
| 4522 | bp->bnx2x_txq = kcalloc(txq_array_size, sizeof(struct bnx2x_fp_txdata), |
| 4523 | GFP_KERNEL); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4524 | if (!bp->bnx2x_txq) |
| 4525 | goto alloc_err; |
| 4526 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4527 | /* msix table */ |
Thomas Meyer | 01e2374 | 2011-11-29 11:08:00 +0000 | [diff] [blame] | 4528 | tbl = kcalloc(msix_table_size, sizeof(*tbl), GFP_KERNEL); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4529 | if (!tbl) |
| 4530 | goto alloc_err; |
| 4531 | bp->msix_table = tbl; |
| 4532 | |
| 4533 | /* ilt */ |
| 4534 | ilt = kzalloc(sizeof(*ilt), GFP_KERNEL); |
| 4535 | if (!ilt) |
| 4536 | goto alloc_err; |
| 4537 | bp->ilt = ilt; |
| 4538 | |
| 4539 | return 0; |
| 4540 | alloc_err: |
| 4541 | bnx2x_free_mem_bp(bp); |
| 4542 | return -ENOMEM; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4543 | } |
| 4544 | |
Dmitry Kravkov | a9fccec | 2011-06-14 01:33:30 +0000 | [diff] [blame] | 4545 | int bnx2x_reload_if_running(struct net_device *dev) |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4546 | { |
| 4547 | struct bnx2x *bp = netdev_priv(dev); |
| 4548 | |
| 4549 | if (unlikely(!netif_running(dev))) |
| 4550 | return 0; |
| 4551 | |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 4552 | bnx2x_nic_unload(bp, UNLOAD_NORMAL, true); |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4553 | return bnx2x_nic_load(bp, LOAD_NORMAL); |
| 4554 | } |
| 4555 | |
Yaniv Rosner | 1ac9e42 | 2011-05-31 21:26:11 +0000 | [diff] [blame] | 4556 | int bnx2x_get_cur_phy_idx(struct bnx2x *bp) |
| 4557 | { |
| 4558 | u32 sel_phy_idx = 0; |
| 4559 | if (bp->link_params.num_phys <= 1) |
| 4560 | return INT_PHY; |
| 4561 | |
| 4562 | if (bp->link_vars.link_up) { |
| 4563 | sel_phy_idx = EXT_PHY1; |
| 4564 | /* In case link is SERDES, check if the EXT_PHY2 is the one */ |
| 4565 | if ((bp->link_vars.link_status & LINK_STATUS_SERDES_LINK) && |
| 4566 | (bp->link_params.phy[EXT_PHY2].supported & SUPPORTED_FIBRE)) |
| 4567 | sel_phy_idx = EXT_PHY2; |
| 4568 | } else { |
| 4569 | |
| 4570 | switch (bnx2x_phy_selection(&bp->link_params)) { |
| 4571 | case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT: |
| 4572 | case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY: |
| 4573 | case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY: |
| 4574 | sel_phy_idx = EXT_PHY1; |
| 4575 | break; |
| 4576 | case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY: |
| 4577 | case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY: |
| 4578 | sel_phy_idx = EXT_PHY2; |
| 4579 | break; |
| 4580 | } |
| 4581 | } |
| 4582 | |
| 4583 | return sel_phy_idx; |
Yaniv Rosner | 1ac9e42 | 2011-05-31 21:26:11 +0000 | [diff] [blame] | 4584 | } |
| 4585 | int bnx2x_get_link_cfg_idx(struct bnx2x *bp) |
| 4586 | { |
| 4587 | u32 sel_phy_idx = bnx2x_get_cur_phy_idx(bp); |
| 4588 | /* |
Yuval Mintz | 2de6743 | 2013-01-23 03:21:43 +0000 | [diff] [blame] | 4589 | * The selected activated PHY is always after swapping (in case PHY |
Yaniv Rosner | 1ac9e42 | 2011-05-31 21:26:11 +0000 | [diff] [blame] | 4590 | * swapping is enabled). So when swapping is enabled, we need to reverse |
| 4591 | * the configuration |
| 4592 | */ |
| 4593 | |
| 4594 | if (bp->link_params.multi_phy_config & |
| 4595 | PORT_HW_CFG_PHY_SWAPPED_ENABLED) { |
| 4596 | if (sel_phy_idx == EXT_PHY1) |
| 4597 | sel_phy_idx = EXT_PHY2; |
| 4598 | else if (sel_phy_idx == EXT_PHY2) |
| 4599 | sel_phy_idx = EXT_PHY1; |
| 4600 | } |
| 4601 | return LINK_CONFIG_IDX(sel_phy_idx); |
| 4602 | } |
| 4603 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4604 | #ifdef NETDEV_FCOE_WWNN |
Vladislav Zolotarov | bf61ee1 | 2011-07-21 07:56:51 +0000 | [diff] [blame] | 4605 | int bnx2x_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type) |
| 4606 | { |
| 4607 | struct bnx2x *bp = netdev_priv(dev); |
| 4608 | struct cnic_eth_dev *cp = &bp->cnic_eth_dev; |
| 4609 | |
| 4610 | switch (type) { |
| 4611 | case NETDEV_FCOE_WWNN: |
| 4612 | *wwn = HILO_U64(cp->fcoe_wwn_node_name_hi, |
| 4613 | cp->fcoe_wwn_node_name_lo); |
| 4614 | break; |
| 4615 | case NETDEV_FCOE_WWPN: |
| 4616 | *wwn = HILO_U64(cp->fcoe_wwn_port_name_hi, |
| 4617 | cp->fcoe_wwn_port_name_lo); |
| 4618 | break; |
| 4619 | default: |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4620 | BNX2X_ERR("Wrong WWN type requested - %d\n", type); |
Vladislav Zolotarov | bf61ee1 | 2011-07-21 07:56:51 +0000 | [diff] [blame] | 4621 | return -EINVAL; |
| 4622 | } |
| 4623 | |
| 4624 | return 0; |
| 4625 | } |
| 4626 | #endif |
| 4627 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4628 | /* called with rtnl_lock */ |
| 4629 | int bnx2x_change_mtu(struct net_device *dev, int new_mtu) |
| 4630 | { |
| 4631 | struct bnx2x *bp = netdev_priv(dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4632 | |
| 4633 | if (bp->recovery_state != BNX2X_RECOVERY_DONE) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4634 | BNX2X_ERR("Can't perform change MTU during parity recovery\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4635 | return -EAGAIN; |
| 4636 | } |
| 4637 | |
| 4638 | if ((new_mtu > ETH_MAX_JUMBO_PACKET_SIZE) || |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4639 | ((new_mtu + ETH_HLEN) < ETH_MIN_PACKET_SIZE)) { |
| 4640 | BNX2X_ERR("Can't support requested MTU size\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4641 | return -EINVAL; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4642 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4643 | |
| 4644 | /* This does not race with packet allocation |
| 4645 | * because the actual alloc size is |
| 4646 | * only updated as part of load |
| 4647 | */ |
| 4648 | dev->mtu = new_mtu; |
| 4649 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4650 | return bnx2x_reload_if_running(dev); |
| 4651 | } |
| 4652 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 4653 | netdev_features_t bnx2x_fix_features(struct net_device *dev, |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4654 | netdev_features_t features) |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4655 | { |
| 4656 | struct bnx2x *bp = netdev_priv(dev); |
| 4657 | |
| 4658 | /* TPA requires Rx CSUM offloading */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4659 | if (!(features & NETIF_F_RXCSUM) || bp->disable_tpa) { |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4660 | features &= ~NETIF_F_LRO; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4661 | features &= ~NETIF_F_GRO; |
| 4662 | } |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4663 | |
| 4664 | return features; |
| 4665 | } |
| 4666 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 4667 | int bnx2x_set_features(struct net_device *dev, netdev_features_t features) |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4668 | { |
| 4669 | struct bnx2x *bp = netdev_priv(dev); |
| 4670 | u32 flags = bp->flags; |
Eric Dumazet | 8802f57 | 2013-05-18 07:14:53 +0000 | [diff] [blame] | 4671 | u32 changes; |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4672 | bool bnx2x_reload = false; |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4673 | |
| 4674 | if (features & NETIF_F_LRO) |
| 4675 | flags |= TPA_ENABLE_FLAG; |
| 4676 | else |
| 4677 | flags &= ~TPA_ENABLE_FLAG; |
| 4678 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4679 | if (features & NETIF_F_GRO) |
| 4680 | flags |= GRO_ENABLE_FLAG; |
| 4681 | else |
| 4682 | flags &= ~GRO_ENABLE_FLAG; |
| 4683 | |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4684 | if (features & NETIF_F_LOOPBACK) { |
| 4685 | if (bp->link_params.loopback_mode != LOOPBACK_BMAC) { |
| 4686 | bp->link_params.loopback_mode = LOOPBACK_BMAC; |
| 4687 | bnx2x_reload = true; |
| 4688 | } |
| 4689 | } else { |
| 4690 | if (bp->link_params.loopback_mode != LOOPBACK_NONE) { |
| 4691 | bp->link_params.loopback_mode = LOOPBACK_NONE; |
| 4692 | bnx2x_reload = true; |
| 4693 | } |
| 4694 | } |
| 4695 | |
Eric Dumazet | 8802f57 | 2013-05-18 07:14:53 +0000 | [diff] [blame] | 4696 | changes = flags ^ bp->flags; |
| 4697 | |
Yuval Mintz | 16a5fd9 | 2013-06-02 00:06:18 +0000 | [diff] [blame] | 4698 | /* 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] | 4699 | if ((changes & GRO_ENABLE_FLAG) && (flags & TPA_ENABLE_FLAG)) |
| 4700 | changes &= ~GRO_ENABLE_FLAG; |
| 4701 | |
| 4702 | if (changes) |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4703 | bnx2x_reload = true; |
Eric Dumazet | 8802f57 | 2013-05-18 07:14:53 +0000 | [diff] [blame] | 4704 | |
| 4705 | bp->flags = flags; |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4706 | |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4707 | if (bnx2x_reload) { |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4708 | if (bp->recovery_state == BNX2X_RECOVERY_DONE) |
| 4709 | return bnx2x_reload_if_running(dev); |
| 4710 | /* else: bnx2x_nic_load() will be called at end of recovery */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4711 | } |
| 4712 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4713 | return 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4714 | } |
| 4715 | |
| 4716 | void bnx2x_tx_timeout(struct net_device *dev) |
| 4717 | { |
| 4718 | struct bnx2x *bp = netdev_priv(dev); |
| 4719 | |
| 4720 | #ifdef BNX2X_STOP_ON_ERROR |
| 4721 | if (!bp->panic) |
| 4722 | bnx2x_panic(); |
| 4723 | #endif |
Ariel Elior | 7be08a7 | 2011-07-14 08:31:19 +0000 | [diff] [blame] | 4724 | |
| 4725 | smp_mb__before_clear_bit(); |
| 4726 | set_bit(BNX2X_SP_RTNL_TX_TIMEOUT, &bp->sp_rtnl_state); |
| 4727 | smp_mb__after_clear_bit(); |
| 4728 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4729 | /* This allows the netif to be shutdown gracefully before resetting */ |
Ariel Elior | 7be08a7 | 2011-07-14 08:31:19 +0000 | [diff] [blame] | 4730 | schedule_delayed_work(&bp->sp_rtnl_task, 0); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4731 | } |
| 4732 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4733 | int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state) |
| 4734 | { |
| 4735 | struct net_device *dev = pci_get_drvdata(pdev); |
| 4736 | struct bnx2x *bp; |
| 4737 | |
| 4738 | if (!dev) { |
| 4739 | dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n"); |
| 4740 | return -ENODEV; |
| 4741 | } |
| 4742 | bp = netdev_priv(dev); |
| 4743 | |
| 4744 | rtnl_lock(); |
| 4745 | |
| 4746 | pci_save_state(pdev); |
| 4747 | |
| 4748 | if (!netif_running(dev)) { |
| 4749 | rtnl_unlock(); |
| 4750 | return 0; |
| 4751 | } |
| 4752 | |
| 4753 | netif_device_detach(dev); |
| 4754 | |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 4755 | bnx2x_nic_unload(bp, UNLOAD_CLOSE, false); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4756 | |
| 4757 | bnx2x_set_power_state(bp, pci_choose_state(pdev, state)); |
| 4758 | |
| 4759 | rtnl_unlock(); |
| 4760 | |
| 4761 | return 0; |
| 4762 | } |
| 4763 | |
| 4764 | int bnx2x_resume(struct pci_dev *pdev) |
| 4765 | { |
| 4766 | struct net_device *dev = pci_get_drvdata(pdev); |
| 4767 | struct bnx2x *bp; |
| 4768 | int rc; |
| 4769 | |
| 4770 | if (!dev) { |
| 4771 | dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n"); |
| 4772 | return -ENODEV; |
| 4773 | } |
| 4774 | bp = netdev_priv(dev); |
| 4775 | |
| 4776 | if (bp->recovery_state != BNX2X_RECOVERY_DONE) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4777 | BNX2X_ERR("Handling parity error recovery. Try again later\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4778 | return -EAGAIN; |
| 4779 | } |
| 4780 | |
| 4781 | rtnl_lock(); |
| 4782 | |
| 4783 | pci_restore_state(pdev); |
| 4784 | |
| 4785 | if (!netif_running(dev)) { |
| 4786 | rtnl_unlock(); |
| 4787 | return 0; |
| 4788 | } |
| 4789 | |
| 4790 | bnx2x_set_power_state(bp, PCI_D0); |
| 4791 | netif_device_attach(dev); |
| 4792 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4793 | rc = bnx2x_nic_load(bp, LOAD_OPEN); |
| 4794 | |
| 4795 | rtnl_unlock(); |
| 4796 | |
| 4797 | return rc; |
| 4798 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4799 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4800 | void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt, |
| 4801 | u32 cid) |
| 4802 | { |
Ariel Elior | b9871bc | 2013-09-04 14:09:21 +0300 | [diff] [blame] | 4803 | if (!cxt) { |
| 4804 | BNX2X_ERR("bad context pointer %p\n", cxt); |
| 4805 | return; |
| 4806 | } |
| 4807 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4808 | /* ustorm cxt validation */ |
| 4809 | cxt->ustorm_ag_context.cdu_usage = |
| 4810 | CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), |
| 4811 | CDU_REGION_NUMBER_UCM_AG, ETH_CONNECTION_TYPE); |
| 4812 | /* xcontext validation */ |
| 4813 | cxt->xstorm_ag_context.cdu_reserved = |
| 4814 | CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), |
| 4815 | CDU_REGION_NUMBER_XCM_AG, ETH_CONNECTION_TYPE); |
| 4816 | } |
| 4817 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4818 | static void storm_memset_hc_timeout(struct bnx2x *bp, u8 port, |
| 4819 | u8 fw_sb_id, u8 sb_index, |
| 4820 | u8 ticks) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4821 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4822 | u32 addr = BAR_CSTRORM_INTMEM + |
| 4823 | CSTORM_STATUS_BLOCK_DATA_TIMEOUT_OFFSET(fw_sb_id, sb_index); |
| 4824 | REG_WR8(bp, addr, ticks); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4825 | DP(NETIF_MSG_IFUP, |
| 4826 | "port %x fw_sb_id %d sb_index %d ticks %d\n", |
| 4827 | port, fw_sb_id, sb_index, ticks); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4828 | } |
| 4829 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4830 | static void storm_memset_hc_disable(struct bnx2x *bp, u8 port, |
| 4831 | u16 fw_sb_id, u8 sb_index, |
| 4832 | u8 disable) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4833 | { |
| 4834 | u32 enable_flag = disable ? 0 : (1 << HC_INDEX_DATA_HC_ENABLED_SHIFT); |
| 4835 | u32 addr = BAR_CSTRORM_INTMEM + |
| 4836 | CSTORM_STATUS_BLOCK_DATA_FLAGS_OFFSET(fw_sb_id, sb_index); |
Ariel Elior | 0c14e5c | 2013-04-17 22:49:06 +0000 | [diff] [blame] | 4837 | u8 flags = REG_RD8(bp, addr); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4838 | /* clear and set */ |
| 4839 | flags &= ~HC_INDEX_DATA_HC_ENABLED; |
| 4840 | flags |= enable_flag; |
Ariel Elior | 0c14e5c | 2013-04-17 22:49:06 +0000 | [diff] [blame] | 4841 | REG_WR8(bp, addr, flags); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4842 | DP(NETIF_MSG_IFUP, |
| 4843 | "port %x fw_sb_id %d sb_index %d disable %d\n", |
| 4844 | port, fw_sb_id, sb_index, disable); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4845 | } |
| 4846 | |
| 4847 | void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id, |
| 4848 | u8 sb_index, u8 disable, u16 usec) |
| 4849 | { |
| 4850 | int port = BP_PORT(bp); |
| 4851 | u8 ticks = usec / BNX2X_BTR; |
| 4852 | |
| 4853 | storm_memset_hc_timeout(bp, port, fw_sb_id, sb_index, ticks); |
| 4854 | |
| 4855 | disable = disable ? 1 : (usec ? 0 : 1); |
| 4856 | storm_memset_hc_disable(bp, port, fw_sb_id, sb_index, disable); |
| 4857 | } |