Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1 | /* bnx2x_cmn.c: Broadcom Everest network driver. |
| 2 | * |
Ariel Elior | 85b26ea | 2012-01-26 06:01:54 +0000 | [diff] [blame] | 3 | * Copyright (c) 2007-2012 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> |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 24 | #include <net/ipv6.h> |
Stephen Rothwell | 7f3e01f | 2010-07-28 22:20:34 -0700 | [diff] [blame] | 25 | #include <net/ip6_checksum.h> |
Paul Gortmaker | c0cba59 | 2011-05-22 11:02:08 +0000 | [diff] [blame] | 26 | #include <linux/prefetch.h> |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 27 | #include "bnx2x_cmn.h" |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 28 | #include "bnx2x_init.h" |
Vladislav Zolotarov | 042181f | 2011-06-14 01:33:39 +0000 | [diff] [blame] | 29 | #include "bnx2x_sp.h" |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 30 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 31 | /** |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 32 | * bnx2x_move_fp - move content of the fastpath structure. |
| 33 | * |
| 34 | * @bp: driver handle |
| 35 | * @from: source FP index |
| 36 | * @to: destination FP index |
| 37 | * |
| 38 | * Makes sure the contents of the bp->fp[to].napi is kept |
Ariel Elior | 7275408 | 2011-11-13 04:34:31 +0000 | [diff] [blame] | 39 | * intact. This is done by first copying the napi struct from |
| 40 | * the target to the source, and then mem copying the entire |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 41 | * source onto the target. Update txdata pointers and related |
| 42 | * content. |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 43 | */ |
| 44 | static inline void bnx2x_move_fp(struct bnx2x *bp, int from, int to) |
| 45 | { |
| 46 | struct bnx2x_fastpath *from_fp = &bp->fp[from]; |
| 47 | struct bnx2x_fastpath *to_fp = &bp->fp[to]; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 48 | struct bnx2x_sp_objs *from_sp_objs = &bp->sp_objs[from]; |
| 49 | struct bnx2x_sp_objs *to_sp_objs = &bp->sp_objs[to]; |
| 50 | struct bnx2x_fp_stats *from_fp_stats = &bp->fp_stats[from]; |
| 51 | struct bnx2x_fp_stats *to_fp_stats = &bp->fp_stats[to]; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 52 | int old_max_eth_txqs, new_max_eth_txqs; |
| 53 | int old_txdata_index = 0, new_txdata_index = 0; |
Ariel Elior | 7275408 | 2011-11-13 04:34:31 +0000 | [diff] [blame] | 54 | |
| 55 | /* Copy the NAPI object as it has been already initialized */ |
| 56 | from_fp->napi = to_fp->napi; |
| 57 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 58 | /* Move bnx2x_fastpath contents */ |
| 59 | memcpy(to_fp, from_fp, sizeof(*to_fp)); |
| 60 | to_fp->index = to; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 61 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 62 | /* move sp_objs contents as well, as their indices match fp ones */ |
| 63 | memcpy(to_sp_objs, from_sp_objs, sizeof(*to_sp_objs)); |
| 64 | |
| 65 | /* move fp_stats contents as well, as their indices match fp ones */ |
| 66 | memcpy(to_fp_stats, from_fp_stats, sizeof(*to_fp_stats)); |
| 67 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 68 | /* Update txdata pointers in fp and move txdata content accordingly: |
| 69 | * Each fp consumes 'max_cos' txdata structures, so the index should be |
| 70 | * decremented by max_cos x delta. |
| 71 | */ |
| 72 | |
| 73 | old_max_eth_txqs = BNX2X_NUM_ETH_QUEUES(bp) * (bp)->max_cos; |
| 74 | new_max_eth_txqs = (BNX2X_NUM_ETH_QUEUES(bp) - from + to) * |
| 75 | (bp)->max_cos; |
| 76 | if (from == FCOE_IDX(bp)) { |
| 77 | old_txdata_index = old_max_eth_txqs + FCOE_TXQ_IDX_OFFSET; |
| 78 | new_txdata_index = new_max_eth_txqs + FCOE_TXQ_IDX_OFFSET; |
| 79 | } |
| 80 | |
Yuval Mintz | 4864a16 | 2013-01-10 04:53:39 +0000 | [diff] [blame] | 81 | memcpy(&bp->bnx2x_txq[new_txdata_index], |
| 82 | &bp->bnx2x_txq[old_txdata_index], |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 83 | sizeof(struct bnx2x_fp_txdata)); |
| 84 | to_fp->txdata_ptr[0] = &bp->bnx2x_txq[new_txdata_index]; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 85 | } |
| 86 | |
Ariel Elior | 8ca5e17 | 2013-01-01 05:22:34 +0000 | [diff] [blame] | 87 | /** |
| 88 | * bnx2x_fill_fw_str - Fill buffer with FW version string. |
| 89 | * |
| 90 | * @bp: driver handle |
| 91 | * @buf: character buffer to fill with the fw name |
| 92 | * @buf_len: length of the above buffer |
| 93 | * |
| 94 | */ |
| 95 | void bnx2x_fill_fw_str(struct bnx2x *bp, char *buf, size_t buf_len) |
| 96 | { |
| 97 | if (IS_PF(bp)) { |
| 98 | u8 phy_fw_ver[PHY_FW_VER_LEN]; |
| 99 | |
| 100 | phy_fw_ver[0] = '\0'; |
| 101 | bnx2x_get_ext_phy_fw_version(&bp->link_params, |
| 102 | phy_fw_ver, PHY_FW_VER_LEN); |
| 103 | strlcpy(buf, bp->fw_ver, buf_len); |
| 104 | snprintf(buf + strlen(bp->fw_ver), 32 - strlen(bp->fw_ver), |
| 105 | "bc %d.%d.%d%s%s", |
| 106 | (bp->common.bc_ver & 0xff0000) >> 16, |
| 107 | (bp->common.bc_ver & 0xff00) >> 8, |
| 108 | (bp->common.bc_ver & 0xff), |
| 109 | ((phy_fw_ver[0] != '\0') ? " phy " : ""), phy_fw_ver); |
| 110 | } else { |
Ariel Elior | 6411280 | 2013-01-07 00:50:23 +0000 | [diff] [blame] | 111 | bnx2x_vf_fill_fw_str(bp, buf, buf_len); |
Ariel Elior | 8ca5e17 | 2013-01-01 05:22:34 +0000 | [diff] [blame] | 112 | } |
| 113 | } |
| 114 | |
David S. Miller | 4b87f92 | 2013-01-15 15:05:59 -0500 | [diff] [blame] | 115 | /** |
Yuval Mintz | 4864a16 | 2013-01-10 04:53:39 +0000 | [diff] [blame] | 116 | * bnx2x_shrink_eth_fp - guarantees fastpath structures stay intact |
| 117 | * |
| 118 | * @bp: driver handle |
| 119 | * @delta: number of eth queues which were not allocated |
| 120 | */ |
| 121 | static void bnx2x_shrink_eth_fp(struct bnx2x *bp, int delta) |
| 122 | { |
| 123 | int i, cos, old_eth_num = BNX2X_NUM_ETH_QUEUES(bp); |
| 124 | |
| 125 | /* Queue pointer cannot be re-set on an fp-basis, as moving pointer |
| 126 | * backward along the array could cause memory to be overriden |
| 127 | */ |
| 128 | for (cos = 1; cos < bp->max_cos; cos++) { |
| 129 | for (i = 0; i < old_eth_num - delta; i++) { |
| 130 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
| 131 | int new_idx = cos * (old_eth_num - delta) + i; |
| 132 | |
| 133 | memcpy(&bp->bnx2x_txq[new_idx], fp->txdata_ptr[cos], |
| 134 | sizeof(struct bnx2x_fp_txdata)); |
| 135 | fp->txdata_ptr[cos] = &bp->bnx2x_txq[new_idx]; |
| 136 | } |
| 137 | } |
| 138 | } |
| 139 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 140 | int load_count[2][3] = { {0} }; /* per-path: 0-common, 1-port0, 2-port1 */ |
| 141 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 142 | /* free skb in the packet ring at pos idx |
| 143 | * return idx of last bd freed |
| 144 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 145 | 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] | 146 | u16 idx, unsigned int *pkts_compl, |
| 147 | unsigned int *bytes_compl) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 148 | { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 149 | struct sw_tx_bd *tx_buf = &txdata->tx_buf_ring[idx]; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 150 | struct eth_tx_start_bd *tx_start_bd; |
| 151 | struct eth_tx_bd *tx_data_bd; |
| 152 | struct sk_buff *skb = tx_buf->skb; |
| 153 | u16 bd_idx = TX_BD(tx_buf->first_bd), new_cons; |
| 154 | int nbd; |
| 155 | |
| 156 | /* prefetch skb end pointer to speedup dev_kfree_skb() */ |
| 157 | prefetch(&skb->end); |
| 158 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 159 | 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] | 160 | txdata->txq_index, idx, tx_buf, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 161 | |
| 162 | /* unmap first bd */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 163 | tx_start_bd = &txdata->tx_desc_ring[bd_idx].start_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 164 | dma_unmap_single(&bp->pdev->dev, BD_UNMAP_ADDR(tx_start_bd), |
Dmitry Kravkov | 4bca60f | 2010-10-06 03:30:27 +0000 | [diff] [blame] | 165 | BD_UNMAP_LEN(tx_start_bd), DMA_TO_DEVICE); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 166 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 167 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 168 | nbd = le16_to_cpu(tx_start_bd->nbd) - 1; |
| 169 | #ifdef BNX2X_STOP_ON_ERROR |
| 170 | if ((nbd - 1) > (MAX_SKB_FRAGS + 2)) { |
| 171 | BNX2X_ERR("BAD nbd!\n"); |
| 172 | bnx2x_panic(); |
| 173 | } |
| 174 | #endif |
| 175 | new_cons = nbd + tx_buf->first_bd; |
| 176 | |
| 177 | /* Get the next bd */ |
| 178 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 179 | |
| 180 | /* Skip a parse bd... */ |
| 181 | --nbd; |
| 182 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 183 | |
| 184 | /* ...and the TSO split header bd since they have no mapping */ |
| 185 | if (tx_buf->flags & BNX2X_TSO_SPLIT_BD) { |
| 186 | --nbd; |
| 187 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 188 | } |
| 189 | |
| 190 | /* now free frags */ |
| 191 | while (nbd > 0) { |
| 192 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 193 | tx_data_bd = &txdata->tx_desc_ring[bd_idx].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 194 | dma_unmap_page(&bp->pdev->dev, BD_UNMAP_ADDR(tx_data_bd), |
| 195 | BD_UNMAP_LEN(tx_data_bd), DMA_TO_DEVICE); |
| 196 | if (--nbd) |
| 197 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 198 | } |
| 199 | |
| 200 | /* release skb */ |
| 201 | WARN_ON(!skb); |
Yuval Mintz | d8290ae | 2012-03-18 10:33:37 +0000 | [diff] [blame] | 202 | if (likely(skb)) { |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 203 | (*pkts_compl)++; |
| 204 | (*bytes_compl) += skb->len; |
| 205 | } |
Yuval Mintz | d8290ae | 2012-03-18 10:33:37 +0000 | [diff] [blame] | 206 | |
Vladislav Zolotarov | 4095553 | 2011-05-22 10:06:58 +0000 | [diff] [blame] | 207 | dev_kfree_skb_any(skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 208 | tx_buf->first_bd = 0; |
| 209 | tx_buf->skb = NULL; |
| 210 | |
| 211 | return new_cons; |
| 212 | } |
| 213 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 214 | int bnx2x_tx_int(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 215 | { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 216 | struct netdev_queue *txq; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 217 | u16 hw_cons, sw_cons, bd_cons = txdata->tx_bd_cons; |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 218 | unsigned int pkts_compl = 0, bytes_compl = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 219 | |
| 220 | #ifdef BNX2X_STOP_ON_ERROR |
| 221 | if (unlikely(bp->panic)) |
| 222 | return -1; |
| 223 | #endif |
| 224 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 225 | txq = netdev_get_tx_queue(bp->dev, txdata->txq_index); |
| 226 | hw_cons = le16_to_cpu(*txdata->tx_cons_sb); |
| 227 | sw_cons = txdata->tx_pkt_cons; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 228 | |
| 229 | while (sw_cons != hw_cons) { |
| 230 | u16 pkt_cons; |
| 231 | |
| 232 | pkt_cons = TX_BD(sw_cons); |
| 233 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 234 | DP(NETIF_MSG_TX_DONE, |
| 235 | "queue[%d]: hw_cons %u sw_cons %u pkt_cons %u\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 236 | txdata->txq_index, hw_cons, sw_cons, pkt_cons); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 237 | |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 238 | bd_cons = bnx2x_free_tx_pkt(bp, txdata, pkt_cons, |
| 239 | &pkts_compl, &bytes_compl); |
| 240 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 241 | sw_cons++; |
| 242 | } |
| 243 | |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 244 | netdev_tx_completed_queue(txq, pkts_compl, bytes_compl); |
| 245 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 246 | txdata->tx_pkt_cons = sw_cons; |
| 247 | txdata->tx_bd_cons = bd_cons; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 248 | |
| 249 | /* Need to make the tx_bd_cons update visible to start_xmit() |
| 250 | * before checking for netif_tx_queue_stopped(). Without the |
| 251 | * memory barrier, there is a small possibility that |
| 252 | * start_xmit() will miss it and cause the queue to be stopped |
| 253 | * forever. |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 254 | * On the other hand we need an rmb() here to ensure the proper |
| 255 | * ordering of bit testing in the following |
| 256 | * netif_tx_queue_stopped(txq) call. |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 257 | */ |
| 258 | smp_mb(); |
| 259 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 260 | if (unlikely(netif_tx_queue_stopped(txq))) { |
| 261 | /* Taking tx_lock() is needed to prevent reenabling the queue |
| 262 | * while it's empty. This could have happen if rx_action() gets |
| 263 | * suspended in bnx2x_tx_int() after the condition before |
| 264 | * netif_tx_wake_queue(), while tx_action (bnx2x_start_xmit()): |
| 265 | * |
| 266 | * stops the queue->sees fresh tx_bd_cons->releases the queue-> |
| 267 | * sends some packets consuming the whole queue again-> |
| 268 | * stops the queue |
| 269 | */ |
| 270 | |
| 271 | __netif_tx_lock(txq, smp_processor_id()); |
| 272 | |
| 273 | if ((netif_tx_queue_stopped(txq)) && |
| 274 | (bp->state == BNX2X_STATE_OPEN) && |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 275 | (bnx2x_tx_avail(bp, txdata) >= MAX_DESC_PER_TX_PKT)) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 276 | netif_tx_wake_queue(txq); |
| 277 | |
| 278 | __netif_tx_unlock(txq); |
| 279 | } |
| 280 | return 0; |
| 281 | } |
| 282 | |
| 283 | static inline void bnx2x_update_last_max_sge(struct bnx2x_fastpath *fp, |
| 284 | u16 idx) |
| 285 | { |
| 286 | u16 last_max = fp->last_max_sge; |
| 287 | |
| 288 | if (SUB_S16(idx, last_max) > 0) |
| 289 | fp->last_max_sge = idx; |
| 290 | } |
| 291 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 292 | static inline void bnx2x_update_sge_prod(struct bnx2x_fastpath *fp, |
| 293 | u16 sge_len, |
| 294 | struct eth_end_agg_rx_cqe *cqe) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 295 | { |
| 296 | struct bnx2x *bp = fp->bp; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 297 | u16 last_max, last_elem, first_elem; |
| 298 | u16 delta = 0; |
| 299 | u16 i; |
| 300 | |
| 301 | if (!sge_len) |
| 302 | return; |
| 303 | |
| 304 | /* First mark all used pages */ |
| 305 | for (i = 0; i < sge_len; i++) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 306 | BIT_VEC64_CLEAR_BIT(fp->sge_mask, |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 307 | RX_SGE(le16_to_cpu(cqe->sgl_or_raw_data.sgl[i]))); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 308 | |
| 309 | DP(NETIF_MSG_RX_STATUS, "fp_cqe->sgl[%d] = %d\n", |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 310 | 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] | 311 | |
| 312 | /* Here we assume that the last SGE index is the biggest */ |
| 313 | prefetch((void *)(fp->sge_mask)); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 314 | bnx2x_update_last_max_sge(fp, |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 315 | le16_to_cpu(cqe->sgl_or_raw_data.sgl[sge_len - 1])); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 316 | |
| 317 | last_max = RX_SGE(fp->last_max_sge); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 318 | last_elem = last_max >> BIT_VEC64_ELEM_SHIFT; |
| 319 | first_elem = RX_SGE(fp->rx_sge_prod) >> BIT_VEC64_ELEM_SHIFT; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 320 | |
| 321 | /* If ring is not full */ |
| 322 | if (last_elem + 1 != first_elem) |
| 323 | last_elem++; |
| 324 | |
| 325 | /* Now update the prod */ |
| 326 | for (i = first_elem; i != last_elem; i = NEXT_SGE_MASK_ELEM(i)) { |
| 327 | if (likely(fp->sge_mask[i])) |
| 328 | break; |
| 329 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 330 | fp->sge_mask[i] = BIT_VEC64_ELEM_ONE_MASK; |
| 331 | delta += BIT_VEC64_ELEM_SZ; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 332 | } |
| 333 | |
| 334 | if (delta > 0) { |
| 335 | fp->rx_sge_prod += delta; |
| 336 | /* clear page-end entries */ |
| 337 | bnx2x_clear_sge_mask_next_elems(fp); |
| 338 | } |
| 339 | |
| 340 | DP(NETIF_MSG_RX_STATUS, |
| 341 | "fp->last_max_sge = %d fp->rx_sge_prod = %d\n", |
| 342 | fp->last_max_sge, fp->rx_sge_prod); |
| 343 | } |
| 344 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 345 | /* Set Toeplitz hash value in the skb using the value from the |
| 346 | * CQE (calculated by HW). |
| 347 | */ |
| 348 | static u32 bnx2x_get_rxhash(const struct bnx2x *bp, |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 349 | const struct eth_fast_path_rx_cqe *cqe, |
| 350 | bool *l4_rxhash) |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 351 | { |
| 352 | /* Set Toeplitz hash from CQE */ |
| 353 | if ((bp->dev->features & NETIF_F_RXHASH) && |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 354 | (cqe->status_flags & ETH_FAST_PATH_RX_CQE_RSS_HASH_FLG)) { |
| 355 | enum eth_rss_hash_type htype; |
| 356 | |
| 357 | htype = cqe->status_flags & ETH_FAST_PATH_RX_CQE_RSS_HASH_TYPE; |
| 358 | *l4_rxhash = (htype == TCP_IPV4_HASH_TYPE) || |
| 359 | (htype == TCP_IPV6_HASH_TYPE); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 360 | return le32_to_cpu(cqe->rss_hash_result); |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 361 | } |
| 362 | *l4_rxhash = false; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 363 | return 0; |
| 364 | } |
| 365 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 366 | static void bnx2x_tpa_start(struct bnx2x_fastpath *fp, u16 queue, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 367 | u16 cons, u16 prod, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 368 | struct eth_fast_path_rx_cqe *cqe) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 369 | { |
| 370 | struct bnx2x *bp = fp->bp; |
| 371 | struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons]; |
| 372 | struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod]; |
| 373 | struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod]; |
| 374 | dma_addr_t mapping; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 375 | struct bnx2x_agg_info *tpa_info = &fp->tpa_info[queue]; |
| 376 | struct sw_rx_bd *first_buf = &tpa_info->first_buf; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 377 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 378 | /* print error if current state != stop */ |
| 379 | if (tpa_info->tpa_state != BNX2X_TPA_STOP) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 380 | BNX2X_ERR("start of bin not in stop [%d]\n", queue); |
| 381 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 382 | /* Try to map an empty data buffer from the aggregation info */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 383 | mapping = dma_map_single(&bp->pdev->dev, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 384 | first_buf->data + NET_SKB_PAD, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 385 | fp->rx_buf_size, DMA_FROM_DEVICE); |
| 386 | /* |
| 387 | * ...if it fails - move the skb from the consumer to the producer |
| 388 | * and set the current aggregation state as ERROR to drop it |
| 389 | * when TPA_STOP arrives. |
| 390 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 391 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 392 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 393 | /* Move the BD from the consumer to the producer */ |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 394 | bnx2x_reuse_rx_data(fp, cons, prod); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 395 | tpa_info->tpa_state = BNX2X_TPA_ERROR; |
| 396 | return; |
| 397 | } |
| 398 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 399 | /* move empty data from pool to prod */ |
| 400 | prod_rx_buf->data = first_buf->data; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 401 | dma_unmap_addr_set(prod_rx_buf, mapping, mapping); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 402 | /* point prod_bd to new data */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 403 | prod_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 404 | prod_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 405 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 406 | /* move partial skb from cons to pool (don't unmap yet) */ |
| 407 | *first_buf = *cons_rx_buf; |
| 408 | |
| 409 | /* mark bin state as START */ |
| 410 | tpa_info->parsing_flags = |
| 411 | le16_to_cpu(cqe->pars_flags.flags); |
| 412 | tpa_info->vlan_tag = le16_to_cpu(cqe->vlan_tag); |
| 413 | tpa_info->tpa_state = BNX2X_TPA_START; |
| 414 | tpa_info->len_on_bd = le16_to_cpu(cqe->len_on_bd); |
| 415 | tpa_info->placement_offset = cqe->placement_offset; |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 416 | tpa_info->rxhash = bnx2x_get_rxhash(bp, cqe, &tpa_info->l4_rxhash); |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 417 | if (fp->mode == TPA_MODE_GRO) { |
| 418 | u16 gro_size = le16_to_cpu(cqe->pkt_len_or_gro_seg_len); |
| 419 | tpa_info->full_page = |
| 420 | SGE_PAGE_SIZE * PAGES_PER_SGE / gro_size * gro_size; |
| 421 | tpa_info->gro_size = gro_size; |
| 422 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 423 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 424 | #ifdef BNX2X_STOP_ON_ERROR |
| 425 | fp->tpa_queue_used |= (1 << queue); |
| 426 | #ifdef _ASM_GENERIC_INT_L64_H |
| 427 | DP(NETIF_MSG_RX_STATUS, "fp->tpa_queue_used = 0x%lx\n", |
| 428 | #else |
| 429 | DP(NETIF_MSG_RX_STATUS, "fp->tpa_queue_used = 0x%llx\n", |
| 430 | #endif |
| 431 | fp->tpa_queue_used); |
| 432 | #endif |
| 433 | } |
| 434 | |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 435 | /* Timestamp option length allowed for TPA aggregation: |
| 436 | * |
| 437 | * nop nop kind length echo val |
| 438 | */ |
| 439 | #define TPA_TSTAMP_OPT_LEN 12 |
| 440 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 441 | * bnx2x_set_lro_mss - calculate the approximate value of the MSS |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 442 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 443 | * @bp: driver handle |
| 444 | * @parsing_flags: parsing flags from the START CQE |
| 445 | * @len_on_bd: total length of the first packet for the |
| 446 | * aggregation. |
| 447 | * |
| 448 | * Approximate value of the MSS for this aggregation calculated using |
| 449 | * the first packet of it. |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 450 | */ |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 451 | static u16 bnx2x_set_lro_mss(struct bnx2x *bp, u16 parsing_flags, |
| 452 | u16 len_on_bd) |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 453 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 454 | /* |
| 455 | * TPA arrgregation won't have either IP options or TCP options |
| 456 | * other than timestamp or IPv6 extension headers. |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 457 | */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 458 | u16 hdrs_len = ETH_HLEN + sizeof(struct tcphdr); |
| 459 | |
| 460 | if (GET_FLAG(parsing_flags, PARSING_FLAGS_OVER_ETHERNET_PROTOCOL) == |
| 461 | PRS_FLAG_OVERETH_IPV6) |
| 462 | hdrs_len += sizeof(struct ipv6hdr); |
| 463 | else /* IPv4 */ |
| 464 | hdrs_len += sizeof(struct iphdr); |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 465 | |
| 466 | |
| 467 | /* Check if there was a TCP timestamp, if there is it's will |
| 468 | * always be 12 bytes length: nop nop kind length echo val. |
| 469 | * |
| 470 | * Otherwise FW would close the aggregation. |
| 471 | */ |
| 472 | if (parsing_flags & PARSING_FLAGS_TIME_STAMP_EXIST_FLAG) |
| 473 | hdrs_len += TPA_TSTAMP_OPT_LEN; |
| 474 | |
| 475 | return len_on_bd - hdrs_len; |
| 476 | } |
| 477 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 478 | static int bnx2x_alloc_rx_sge(struct bnx2x *bp, |
| 479 | struct bnx2x_fastpath *fp, u16 index) |
| 480 | { |
| 481 | struct page *page = alloc_pages(GFP_ATOMIC, PAGES_PER_SGE_SHIFT); |
| 482 | struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; |
| 483 | struct eth_rx_sge *sge = &fp->rx_sge_ring[index]; |
| 484 | dma_addr_t mapping; |
| 485 | |
| 486 | if (unlikely(page == NULL)) { |
| 487 | BNX2X_ERR("Can't alloc sge\n"); |
| 488 | return -ENOMEM; |
| 489 | } |
| 490 | |
| 491 | mapping = dma_map_page(&bp->pdev->dev, page, 0, |
| 492 | SGE_PAGE_SIZE*PAGES_PER_SGE, DMA_FROM_DEVICE); |
| 493 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 494 | __free_pages(page, PAGES_PER_SGE_SHIFT); |
| 495 | BNX2X_ERR("Can't map sge\n"); |
| 496 | return -ENOMEM; |
| 497 | } |
| 498 | |
| 499 | sw_buf->page = page; |
| 500 | dma_unmap_addr_set(sw_buf, mapping, mapping); |
| 501 | |
| 502 | sge->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 503 | sge->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 504 | |
| 505 | return 0; |
| 506 | } |
| 507 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 508 | 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] | 509 | struct bnx2x_agg_info *tpa_info, |
| 510 | u16 pages, |
| 511 | struct sk_buff *skb, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 512 | struct eth_end_agg_rx_cqe *cqe, |
| 513 | u16 cqe_idx) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 514 | { |
| 515 | struct sw_rx_page *rx_pg, old_rx_pg; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 516 | u32 i, frag_len, frag_size; |
| 517 | int err, j, frag_id = 0; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 518 | u16 len_on_bd = tpa_info->len_on_bd; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 519 | u16 full_page = 0, gro_size = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 520 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 521 | frag_size = le16_to_cpu(cqe->pkt_len) - len_on_bd; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 522 | |
| 523 | if (fp->mode == TPA_MODE_GRO) { |
| 524 | gro_size = tpa_info->gro_size; |
| 525 | full_page = tpa_info->full_page; |
| 526 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 527 | |
| 528 | /* This is needed in order to enable forwarding support */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 529 | if (frag_size) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 530 | skb_shinfo(skb)->gso_size = bnx2x_set_lro_mss(bp, |
| 531 | tpa_info->parsing_flags, len_on_bd); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 532 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 533 | /* set for GRO */ |
| 534 | if (fp->mode == TPA_MODE_GRO) |
| 535 | skb_shinfo(skb)->gso_type = |
| 536 | (GET_FLAG(tpa_info->parsing_flags, |
| 537 | PARSING_FLAGS_OVER_ETHERNET_PROTOCOL) == |
| 538 | PRS_FLAG_OVERETH_IPV6) ? |
| 539 | SKB_GSO_TCPV6 : SKB_GSO_TCPV4; |
| 540 | } |
| 541 | |
| 542 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 543 | #ifdef BNX2X_STOP_ON_ERROR |
| 544 | if (pages > min_t(u32, 8, MAX_SKB_FRAGS)*SGE_PAGE_SIZE*PAGES_PER_SGE) { |
| 545 | BNX2X_ERR("SGL length is too long: %d. CQE index is %d\n", |
| 546 | pages, cqe_idx); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 547 | BNX2X_ERR("cqe->pkt_len = %d\n", cqe->pkt_len); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 548 | bnx2x_panic(); |
| 549 | return -EINVAL; |
| 550 | } |
| 551 | #endif |
| 552 | |
| 553 | /* Run through the SGL and compose the fragmented skb */ |
| 554 | for (i = 0, j = 0; i < pages; i += PAGES_PER_SGE, j++) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 555 | 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] | 556 | |
| 557 | /* FW gives the indices of the SGE as if the ring is an array |
| 558 | (meaning that "next" element will consume 2 indices) */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 559 | if (fp->mode == TPA_MODE_GRO) |
| 560 | frag_len = min_t(u32, frag_size, (u32)full_page); |
| 561 | else /* LRO */ |
| 562 | frag_len = min_t(u32, frag_size, |
| 563 | (u32)(SGE_PAGE_SIZE * PAGES_PER_SGE)); |
| 564 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 565 | rx_pg = &fp->rx_page_ring[sge_idx]; |
| 566 | old_rx_pg = *rx_pg; |
| 567 | |
| 568 | /* If we fail to allocate a substitute page, we simply stop |
| 569 | where we are and drop the whole packet */ |
| 570 | err = bnx2x_alloc_rx_sge(bp, fp, sge_idx); |
| 571 | if (unlikely(err)) { |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 572 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 573 | return err; |
| 574 | } |
| 575 | |
| 576 | /* Unmap the page as we r going to pass it to the stack */ |
| 577 | dma_unmap_page(&bp->pdev->dev, |
| 578 | dma_unmap_addr(&old_rx_pg, mapping), |
| 579 | SGE_PAGE_SIZE*PAGES_PER_SGE, DMA_FROM_DEVICE); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 580 | /* Add one frag and update the appropriate fields in the skb */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 581 | if (fp->mode == TPA_MODE_LRO) |
| 582 | skb_fill_page_desc(skb, j, old_rx_pg.page, 0, frag_len); |
| 583 | else { /* GRO */ |
| 584 | int rem; |
| 585 | int offset = 0; |
| 586 | for (rem = frag_len; rem > 0; rem -= gro_size) { |
| 587 | int len = rem > gro_size ? gro_size : rem; |
| 588 | skb_fill_page_desc(skb, frag_id++, |
| 589 | old_rx_pg.page, offset, len); |
| 590 | if (offset) |
| 591 | get_page(old_rx_pg.page); |
| 592 | offset += len; |
| 593 | } |
| 594 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 595 | |
| 596 | skb->data_len += frag_len; |
Eric Dumazet | e1ac50f | 2011-10-19 23:00:23 +0000 | [diff] [blame] | 597 | skb->truesize += SGE_PAGE_SIZE * PAGES_PER_SGE; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 598 | skb->len += frag_len; |
| 599 | |
| 600 | frag_size -= frag_len; |
| 601 | } |
| 602 | |
| 603 | return 0; |
| 604 | } |
| 605 | |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 606 | static void bnx2x_frag_free(const struct bnx2x_fastpath *fp, void *data) |
| 607 | { |
| 608 | if (fp->rx_frag_size) |
| 609 | put_page(virt_to_head_page(data)); |
| 610 | else |
| 611 | kfree(data); |
| 612 | } |
| 613 | |
| 614 | static void *bnx2x_frag_alloc(const struct bnx2x_fastpath *fp) |
| 615 | { |
| 616 | if (fp->rx_frag_size) |
| 617 | return netdev_alloc_frag(fp->rx_frag_size); |
| 618 | |
| 619 | return kmalloc(fp->rx_buf_size + NET_SKB_PAD, GFP_ATOMIC); |
| 620 | } |
| 621 | |
| 622 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 623 | static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
| 624 | struct bnx2x_agg_info *tpa_info, |
| 625 | u16 pages, |
| 626 | struct eth_end_agg_rx_cqe *cqe, |
| 627 | u16 cqe_idx) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 628 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 629 | struct sw_rx_bd *rx_buf = &tpa_info->first_buf; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 630 | u8 pad = tpa_info->placement_offset; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 631 | u16 len = tpa_info->len_on_bd; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 632 | struct sk_buff *skb = NULL; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 633 | u8 *new_data, *data = rx_buf->data; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 634 | u8 old_tpa_state = tpa_info->tpa_state; |
| 635 | |
| 636 | tpa_info->tpa_state = BNX2X_TPA_STOP; |
| 637 | |
| 638 | /* If we there was an error during the handling of the TPA_START - |
| 639 | * drop this aggregation. |
| 640 | */ |
| 641 | if (old_tpa_state == BNX2X_TPA_ERROR) |
| 642 | goto drop; |
| 643 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 644 | /* Try to allocate the new data */ |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 645 | new_data = bnx2x_frag_alloc(fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 646 | /* Unmap skb in the pool anyway, as we are going to change |
| 647 | pool entry status to BNX2X_TPA_STOP even if new skb allocation |
| 648 | fails. */ |
| 649 | dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(rx_buf, mapping), |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 650 | fp->rx_buf_size, DMA_FROM_DEVICE); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 651 | if (likely(new_data)) |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 652 | skb = build_skb(data, fp->rx_frag_size); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 653 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 654 | if (likely(skb)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 655 | #ifdef BNX2X_STOP_ON_ERROR |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 656 | if (pad + len > fp->rx_buf_size) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 657 | 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] | 658 | pad, len, fp->rx_buf_size); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 659 | bnx2x_panic(); |
| 660 | return; |
| 661 | } |
| 662 | #endif |
| 663 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 664 | skb_reserve(skb, pad + NET_SKB_PAD); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 665 | skb_put(skb, len); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 666 | skb->rxhash = tpa_info->rxhash; |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 667 | skb->l4_rxhash = tpa_info->l4_rxhash; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 668 | |
| 669 | skb->protocol = eth_type_trans(skb, bp->dev); |
| 670 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 671 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 672 | if (!bnx2x_fill_frag_skb(bp, fp, tpa_info, pages, |
| 673 | skb, cqe, cqe_idx)) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 674 | if (tpa_info->parsing_flags & PARSING_FLAGS_VLAN) |
| 675 | __vlan_hwaccel_put_tag(skb, tpa_info->vlan_tag); |
Hao Zheng | 9bcc089 | 2010-10-20 13:56:11 +0000 | [diff] [blame] | 676 | napi_gro_receive(&fp->napi, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 677 | } else { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 678 | DP(NETIF_MSG_RX_STATUS, |
| 679 | "Failed to allocate new pages - dropping packet!\n"); |
Vladislav Zolotarov | 4095553 | 2011-05-22 10:06:58 +0000 | [diff] [blame] | 680 | dev_kfree_skb_any(skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 681 | } |
| 682 | |
| 683 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 684 | /* put new data in bin */ |
| 685 | rx_buf->data = new_data; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 686 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 687 | return; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 688 | } |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 689 | bnx2x_frag_free(fp, new_data); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 690 | drop: |
| 691 | /* drop the packet and keep the buffer in the bin */ |
| 692 | DP(NETIF_MSG_RX_STATUS, |
| 693 | "Failed to allocate or map a new skb - dropping packet!\n"); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 694 | bnx2x_fp_stats(bp, fp)->eth_q_stats.rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 695 | } |
| 696 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 697 | static int bnx2x_alloc_rx_data(struct bnx2x *bp, |
| 698 | struct bnx2x_fastpath *fp, u16 index) |
| 699 | { |
| 700 | u8 *data; |
| 701 | struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[index]; |
| 702 | struct eth_rx_bd *rx_bd = &fp->rx_desc_ring[index]; |
| 703 | dma_addr_t mapping; |
| 704 | |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 705 | data = bnx2x_frag_alloc(fp); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 706 | if (unlikely(data == NULL)) |
| 707 | return -ENOMEM; |
| 708 | |
| 709 | mapping = dma_map_single(&bp->pdev->dev, data + NET_SKB_PAD, |
| 710 | fp->rx_buf_size, |
| 711 | DMA_FROM_DEVICE); |
| 712 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 713 | bnx2x_frag_free(fp, data); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 714 | BNX2X_ERR("Can't map rx data\n"); |
| 715 | return -ENOMEM; |
| 716 | } |
| 717 | |
| 718 | rx_buf->data = data; |
| 719 | dma_unmap_addr_set(rx_buf, mapping, mapping); |
| 720 | |
| 721 | rx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 722 | rx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 723 | |
| 724 | return 0; |
| 725 | } |
| 726 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 727 | static |
| 728 | void bnx2x_csum_validate(struct sk_buff *skb, union eth_rx_cqe *cqe, |
| 729 | struct bnx2x_fastpath *fp, |
| 730 | struct bnx2x_eth_q_stats *qstats) |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 731 | { |
Michal Schmidt | e488921 | 2012-09-13 12:59:44 +0000 | [diff] [blame] | 732 | /* Do nothing if no L4 csum validation was done. |
| 733 | * We do not check whether IP csum was validated. For IPv4 we assume |
| 734 | * that if the card got as far as validating the L4 csum, it also |
| 735 | * validated the IP csum. IPv6 has no IP csum. |
| 736 | */ |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 737 | if (cqe->fast_path_cqe.status_flags & |
Michal Schmidt | e488921 | 2012-09-13 12:59:44 +0000 | [diff] [blame] | 738 | ETH_FAST_PATH_RX_CQE_L4_XSUM_NO_VALIDATION_FLG) |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 739 | return; |
| 740 | |
Michal Schmidt | e488921 | 2012-09-13 12:59:44 +0000 | [diff] [blame] | 741 | /* If L4 validation was done, check if an error was found. */ |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 742 | |
| 743 | if (cqe->fast_path_cqe.type_error_flags & |
| 744 | (ETH_FAST_PATH_RX_CQE_IP_BAD_XSUM_FLG | |
| 745 | ETH_FAST_PATH_RX_CQE_L4_BAD_XSUM_FLG)) |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 746 | qstats->hw_csum_err++; |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 747 | else |
| 748 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 749 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 750 | |
| 751 | int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) |
| 752 | { |
| 753 | struct bnx2x *bp = fp->bp; |
| 754 | u16 bd_cons, bd_prod, bd_prod_fw, comp_ring_cons; |
| 755 | u16 hw_comp_cons, sw_comp_cons, sw_comp_prod; |
| 756 | int rx_pkt = 0; |
| 757 | |
| 758 | #ifdef BNX2X_STOP_ON_ERROR |
| 759 | if (unlikely(bp->panic)) |
| 760 | return 0; |
| 761 | #endif |
| 762 | |
| 763 | /* CQ "next element" is of the size of the regular element, |
| 764 | that's why it's ok here */ |
| 765 | hw_comp_cons = le16_to_cpu(*fp->rx_cons_sb); |
| 766 | if ((hw_comp_cons & MAX_RCQ_DESC_CNT) == MAX_RCQ_DESC_CNT) |
| 767 | hw_comp_cons++; |
| 768 | |
| 769 | bd_cons = fp->rx_bd_cons; |
| 770 | bd_prod = fp->rx_bd_prod; |
| 771 | bd_prod_fw = bd_prod; |
| 772 | sw_comp_cons = fp->rx_comp_cons; |
| 773 | sw_comp_prod = fp->rx_comp_prod; |
| 774 | |
| 775 | /* Memory barrier necessary as speculative reads of the rx |
| 776 | * buffer can be ahead of the index in the status block |
| 777 | */ |
| 778 | rmb(); |
| 779 | |
| 780 | DP(NETIF_MSG_RX_STATUS, |
| 781 | "queue[%d]: hw_comp_cons %u sw_comp_cons %u\n", |
| 782 | fp->index, hw_comp_cons, sw_comp_cons); |
| 783 | |
| 784 | while (sw_comp_cons != hw_comp_cons) { |
| 785 | struct sw_rx_bd *rx_buf = NULL; |
| 786 | struct sk_buff *skb; |
| 787 | union eth_rx_cqe *cqe; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 788 | struct eth_fast_path_rx_cqe *cqe_fp; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 789 | u8 cqe_fp_flags; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 790 | enum eth_rx_cqe_type cqe_fp_type; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 791 | u16 len, pad, queue; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 792 | u8 *data; |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 793 | bool l4_rxhash; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 794 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 795 | #ifdef BNX2X_STOP_ON_ERROR |
| 796 | if (unlikely(bp->panic)) |
| 797 | return 0; |
| 798 | #endif |
| 799 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 800 | comp_ring_cons = RCQ_BD(sw_comp_cons); |
| 801 | bd_prod = RX_BD(bd_prod); |
| 802 | bd_cons = RX_BD(bd_cons); |
| 803 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 804 | cqe = &fp->rx_comp_ring[comp_ring_cons]; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 805 | cqe_fp = &cqe->fast_path_cqe; |
| 806 | cqe_fp_flags = cqe_fp->type_error_flags; |
| 807 | cqe_fp_type = cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 808 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 809 | DP(NETIF_MSG_RX_STATUS, |
| 810 | "CQE type %x err %x status %x queue %x vlan %x len %u\n", |
| 811 | CQE_TYPE(cqe_fp_flags), |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 812 | cqe_fp_flags, cqe_fp->status_flags, |
| 813 | le32_to_cpu(cqe_fp->rss_hash_result), |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 814 | le16_to_cpu(cqe_fp->vlan_tag), |
| 815 | le16_to_cpu(cqe_fp->pkt_len_or_gro_seg_len)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 816 | |
| 817 | /* is this a slowpath msg? */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 818 | if (unlikely(CQE_TYPE_SLOW(cqe_fp_type))) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 819 | bnx2x_sp_event(fp, cqe); |
| 820 | goto next_cqe; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 821 | } |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 822 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 823 | rx_buf = &fp->rx_buf_ring[bd_cons]; |
| 824 | data = rx_buf->data; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 825 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 826 | if (!CQE_TYPE_FAST(cqe_fp_type)) { |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 827 | struct bnx2x_agg_info *tpa_info; |
| 828 | u16 frag_size, pages; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 829 | #ifdef BNX2X_STOP_ON_ERROR |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 830 | /* sanity check */ |
| 831 | if (fp->disable_tpa && |
| 832 | (CQE_TYPE_START(cqe_fp_type) || |
| 833 | CQE_TYPE_STOP(cqe_fp_type))) |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 834 | BNX2X_ERR("START/STOP packet while disable_tpa type %x\n", |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 835 | CQE_TYPE(cqe_fp_type)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 836 | #endif |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 837 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 838 | if (CQE_TYPE_START(cqe_fp_type)) { |
| 839 | u16 queue = cqe_fp->queue_index; |
| 840 | DP(NETIF_MSG_RX_STATUS, |
| 841 | "calling tpa_start on queue %d\n", |
| 842 | queue); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 843 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 844 | bnx2x_tpa_start(fp, queue, |
| 845 | bd_cons, bd_prod, |
| 846 | cqe_fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 847 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 848 | goto next_rx; |
| 849 | |
| 850 | } |
| 851 | queue = cqe->end_agg_cqe.queue_index; |
| 852 | tpa_info = &fp->tpa_info[queue]; |
| 853 | DP(NETIF_MSG_RX_STATUS, |
| 854 | "calling tpa_stop on queue %d\n", |
| 855 | queue); |
| 856 | |
| 857 | frag_size = le16_to_cpu(cqe->end_agg_cqe.pkt_len) - |
| 858 | tpa_info->len_on_bd; |
| 859 | |
| 860 | if (fp->mode == TPA_MODE_GRO) |
| 861 | pages = (frag_size + tpa_info->full_page - 1) / |
| 862 | tpa_info->full_page; |
| 863 | else |
| 864 | pages = SGE_PAGE_ALIGN(frag_size) >> |
| 865 | SGE_PAGE_SHIFT; |
| 866 | |
| 867 | bnx2x_tpa_stop(bp, fp, tpa_info, pages, |
| 868 | &cqe->end_agg_cqe, comp_ring_cons); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 869 | #ifdef BNX2X_STOP_ON_ERROR |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 870 | if (bp->panic) |
| 871 | return 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 872 | #endif |
| 873 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 874 | bnx2x_update_sge_prod(fp, pages, &cqe->end_agg_cqe); |
| 875 | goto next_cqe; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 876 | } |
| 877 | /* non TPA */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 878 | len = le16_to_cpu(cqe_fp->pkt_len_or_gro_seg_len); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 879 | pad = cqe_fp->placement_offset; |
| 880 | dma_sync_single_for_cpu(&bp->pdev->dev, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 881 | dma_unmap_addr(rx_buf, mapping), |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 882 | pad + RX_COPY_THRESH, |
| 883 | DMA_FROM_DEVICE); |
| 884 | pad += NET_SKB_PAD; |
| 885 | prefetch(data + pad); /* speedup eth_type_trans() */ |
| 886 | /* is this an error packet? */ |
| 887 | if (unlikely(cqe_fp_flags & ETH_RX_ERROR_FALGS)) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 888 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 889 | "ERROR flags %x rx packet %u\n", |
| 890 | cqe_fp_flags, sw_comp_cons); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 891 | bnx2x_fp_qstats(bp, fp)->rx_err_discard_pkt++; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 892 | goto reuse_rx; |
| 893 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 894 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 895 | /* Since we don't have a jumbo ring |
| 896 | * copy small packets if mtu > 1500 |
| 897 | */ |
| 898 | if ((bp->dev->mtu > ETH_MAX_PACKET_SIZE) && |
| 899 | (len <= RX_COPY_THRESH)) { |
| 900 | skb = netdev_alloc_skb_ip_align(bp->dev, len); |
| 901 | if (skb == NULL) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 902 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 903 | "ERROR packet dropped because of alloc failure\n"); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 904 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 905 | goto reuse_rx; |
| 906 | } |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 907 | memcpy(skb->data, data + pad, len); |
| 908 | bnx2x_reuse_rx_data(fp, bd_cons, bd_prod); |
| 909 | } else { |
| 910 | if (likely(bnx2x_alloc_rx_data(bp, fp, bd_prod) == 0)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 911 | dma_unmap_single(&bp->pdev->dev, |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 912 | dma_unmap_addr(rx_buf, mapping), |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 913 | fp->rx_buf_size, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 914 | DMA_FROM_DEVICE); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 915 | skb = build_skb(data, fp->rx_frag_size); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 916 | if (unlikely(!skb)) { |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 917 | bnx2x_frag_free(fp, data); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 918 | bnx2x_fp_qstats(bp, fp)-> |
| 919 | rx_skb_alloc_failed++; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 920 | goto next_rx; |
| 921 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 922 | skb_reserve(skb, pad); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 923 | } else { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 924 | DP(NETIF_MSG_RX_ERR | NETIF_MSG_RX_STATUS, |
| 925 | "ERROR packet dropped because of alloc failure\n"); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 926 | bnx2x_fp_qstats(bp, fp)->rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 927 | reuse_rx: |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 928 | bnx2x_reuse_rx_data(fp, bd_cons, bd_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 929 | goto next_rx; |
| 930 | } |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 931 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 932 | |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 933 | skb_put(skb, len); |
| 934 | skb->protocol = eth_type_trans(skb, bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 935 | |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 936 | /* Set Toeplitz hash for a none-LRO skb */ |
Eric Dumazet | a334b5f | 2012-07-09 06:02:24 +0000 | [diff] [blame] | 937 | skb->rxhash = bnx2x_get_rxhash(bp, cqe_fp, &l4_rxhash); |
| 938 | skb->l4_rxhash = l4_rxhash; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 939 | |
Dmitry Kravkov | 036d2df | 2011-12-12 23:40:53 +0000 | [diff] [blame] | 940 | skb_checksum_none_assert(skb); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 941 | |
Eric Dumazet | d6cb3e4 | 2012-06-12 23:50:04 +0000 | [diff] [blame] | 942 | if (bp->dev->features & NETIF_F_RXCSUM) |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 943 | bnx2x_csum_validate(skb, cqe, fp, |
| 944 | bnx2x_fp_qstats(bp, fp)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 945 | |
Dmitry Kravkov | f233caf | 2011-11-13 04:34:22 +0000 | [diff] [blame] | 946 | skb_record_rx_queue(skb, fp->rx_queue); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 947 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 948 | if (le16_to_cpu(cqe_fp->pars_flags.flags) & |
| 949 | PARSING_FLAGS_VLAN) |
Hao Zheng | 9bcc089 | 2010-10-20 13:56:11 +0000 | [diff] [blame] | 950 | __vlan_hwaccel_put_tag(skb, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 951 | le16_to_cpu(cqe_fp->vlan_tag)); |
Hao Zheng | 9bcc089 | 2010-10-20 13:56:11 +0000 | [diff] [blame] | 952 | napi_gro_receive(&fp->napi, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 953 | |
| 954 | |
| 955 | next_rx: |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 956 | rx_buf->data = NULL; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 957 | |
| 958 | bd_cons = NEXT_RX_IDX(bd_cons); |
| 959 | bd_prod = NEXT_RX_IDX(bd_prod); |
| 960 | bd_prod_fw = NEXT_RX_IDX(bd_prod_fw); |
| 961 | rx_pkt++; |
| 962 | next_cqe: |
| 963 | sw_comp_prod = NEXT_RCQ_IDX(sw_comp_prod); |
| 964 | sw_comp_cons = NEXT_RCQ_IDX(sw_comp_cons); |
| 965 | |
| 966 | if (rx_pkt == budget) |
| 967 | break; |
| 968 | } /* while */ |
| 969 | |
| 970 | fp->rx_bd_cons = bd_cons; |
| 971 | fp->rx_bd_prod = bd_prod_fw; |
| 972 | fp->rx_comp_cons = sw_comp_cons; |
| 973 | fp->rx_comp_prod = sw_comp_prod; |
| 974 | |
| 975 | /* Update producers */ |
| 976 | bnx2x_update_rx_prod(bp, fp, bd_prod_fw, sw_comp_prod, |
| 977 | fp->rx_sge_prod); |
| 978 | |
| 979 | fp->rx_pkt += rx_pkt; |
| 980 | fp->rx_calls++; |
| 981 | |
| 982 | return rx_pkt; |
| 983 | } |
| 984 | |
| 985 | static irqreturn_t bnx2x_msix_fp_int(int irq, void *fp_cookie) |
| 986 | { |
| 987 | struct bnx2x_fastpath *fp = fp_cookie; |
| 988 | struct bnx2x *bp = fp->bp; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 989 | u8 cos; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 990 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 991 | DP(NETIF_MSG_INTR, |
| 992 | "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] | 993 | fp->index, fp->fw_sb_id, fp->igu_sb_id); |
| 994 | 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] | 995 | |
| 996 | #ifdef BNX2X_STOP_ON_ERROR |
| 997 | if (unlikely(bp->panic)) |
| 998 | return IRQ_HANDLED; |
| 999 | #endif |
| 1000 | |
| 1001 | /* Handle Rx and Tx according to MSI-X vector */ |
| 1002 | prefetch(fp->rx_cons_sb); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1003 | |
| 1004 | for_each_cos_in_tx_queue(fp, cos) |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 1005 | prefetch(fp->txdata_ptr[cos]->tx_cons_sb); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1006 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1007 | prefetch(&fp->sb_running_index[SM_RX_ID]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1008 | napi_schedule(&bnx2x_fp(bp, fp->index, napi)); |
| 1009 | |
| 1010 | return IRQ_HANDLED; |
| 1011 | } |
| 1012 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1013 | /* HW Lock for shared dual port PHYs */ |
| 1014 | void bnx2x_acquire_phy_lock(struct bnx2x *bp) |
| 1015 | { |
| 1016 | mutex_lock(&bp->port.phy_mutex); |
| 1017 | |
Yaniv Rosner | 8203c4b | 2012-11-27 03:46:33 +0000 | [diff] [blame] | 1018 | bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_MDIO); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1019 | } |
| 1020 | |
| 1021 | void bnx2x_release_phy_lock(struct bnx2x *bp) |
| 1022 | { |
Yaniv Rosner | 8203c4b | 2012-11-27 03:46:33 +0000 | [diff] [blame] | 1023 | bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_MDIO); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1024 | |
| 1025 | mutex_unlock(&bp->port.phy_mutex); |
| 1026 | } |
| 1027 | |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1028 | /* calculates MF speed according to current linespeed and MF configuration */ |
| 1029 | u16 bnx2x_get_mf_speed(struct bnx2x *bp) |
| 1030 | { |
| 1031 | u16 line_speed = bp->link_vars.line_speed; |
| 1032 | if (IS_MF(bp)) { |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 1033 | u16 maxCfg = bnx2x_extract_max_cfg(bp, |
| 1034 | bp->mf_config[BP_VN(bp)]); |
| 1035 | |
| 1036 | /* Calculate the current MAX line speed limit for the MF |
| 1037 | * devices |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1038 | */ |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 1039 | if (IS_MF_SI(bp)) |
| 1040 | line_speed = (line_speed * maxCfg) / 100; |
| 1041 | else { /* SD mode */ |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1042 | u16 vn_max_rate = maxCfg * 100; |
| 1043 | |
| 1044 | if (vn_max_rate < line_speed) |
| 1045 | line_speed = vn_max_rate; |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 1046 | } |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 1047 | } |
| 1048 | |
| 1049 | return line_speed; |
| 1050 | } |
| 1051 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1052 | /** |
| 1053 | * bnx2x_fill_report_data - fill link report data to report |
| 1054 | * |
| 1055 | * @bp: driver handle |
| 1056 | * @data: link state to update |
| 1057 | * |
| 1058 | * It uses a none-atomic bit operations because is called under the mutex. |
| 1059 | */ |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1060 | static void bnx2x_fill_report_data(struct bnx2x *bp, |
| 1061 | struct bnx2x_link_report_data *data) |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1062 | { |
| 1063 | u16 line_speed = bnx2x_get_mf_speed(bp); |
| 1064 | |
| 1065 | memset(data, 0, sizeof(*data)); |
| 1066 | |
| 1067 | /* Fill the report data: efective line speed */ |
| 1068 | data->line_speed = line_speed; |
| 1069 | |
| 1070 | /* Link is down */ |
| 1071 | if (!bp->link_vars.link_up || (bp->flags & MF_FUNC_DIS)) |
| 1072 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1073 | &data->link_report_flags); |
| 1074 | |
| 1075 | /* Full DUPLEX */ |
| 1076 | if (bp->link_vars.duplex == DUPLEX_FULL) |
| 1077 | __set_bit(BNX2X_LINK_REPORT_FD, &data->link_report_flags); |
| 1078 | |
| 1079 | /* Rx Flow Control is ON */ |
| 1080 | if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_RX) |
| 1081 | __set_bit(BNX2X_LINK_REPORT_RX_FC_ON, &data->link_report_flags); |
| 1082 | |
| 1083 | /* Tx Flow Control is ON */ |
| 1084 | if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX) |
| 1085 | __set_bit(BNX2X_LINK_REPORT_TX_FC_ON, &data->link_report_flags); |
| 1086 | } |
| 1087 | |
| 1088 | /** |
| 1089 | * bnx2x_link_report - report link status to OS. |
| 1090 | * |
| 1091 | * @bp: driver handle |
| 1092 | * |
| 1093 | * Calls the __bnx2x_link_report() under the same locking scheme |
| 1094 | * as a link/PHY state managing code to ensure a consistent link |
| 1095 | * reporting. |
| 1096 | */ |
| 1097 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1098 | void bnx2x_link_report(struct bnx2x *bp) |
| 1099 | { |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1100 | bnx2x_acquire_phy_lock(bp); |
| 1101 | __bnx2x_link_report(bp); |
| 1102 | bnx2x_release_phy_lock(bp); |
| 1103 | } |
| 1104 | |
| 1105 | /** |
| 1106 | * __bnx2x_link_report - report link status to OS. |
| 1107 | * |
| 1108 | * @bp: driver handle |
| 1109 | * |
| 1110 | * None atomic inmlementation. |
| 1111 | * Should be called under the phy_lock. |
| 1112 | */ |
| 1113 | void __bnx2x_link_report(struct bnx2x *bp) |
| 1114 | { |
| 1115 | struct bnx2x_link_report_data cur_data; |
| 1116 | |
| 1117 | /* reread mf_cfg */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1118 | if (IS_PF(bp) && !CHIP_IS_E1(bp)) |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1119 | bnx2x_read_mf_cfg(bp); |
| 1120 | |
| 1121 | /* Read the current link report info */ |
| 1122 | bnx2x_fill_report_data(bp, &cur_data); |
| 1123 | |
| 1124 | /* Don't report link down or exactly the same link status twice */ |
| 1125 | if (!memcmp(&cur_data, &bp->last_reported_link, sizeof(cur_data)) || |
| 1126 | (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1127 | &bp->last_reported_link.link_report_flags) && |
| 1128 | test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1129 | &cur_data.link_report_flags))) |
| 1130 | return; |
| 1131 | |
| 1132 | bp->link_cnt++; |
| 1133 | |
| 1134 | /* We are going to report a new link parameters now - |
| 1135 | * remember the current data for the next time. |
| 1136 | */ |
| 1137 | memcpy(&bp->last_reported_link, &cur_data, sizeof(cur_data)); |
| 1138 | |
| 1139 | if (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1140 | &cur_data.link_report_flags)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1141 | netif_carrier_off(bp->dev); |
| 1142 | netdev_err(bp->dev, "NIC Link is Down\n"); |
| 1143 | return; |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1144 | } else { |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1145 | const char *duplex; |
| 1146 | const char *flow; |
| 1147 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1148 | netif_carrier_on(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1149 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1150 | if (test_and_clear_bit(BNX2X_LINK_REPORT_FD, |
| 1151 | &cur_data.link_report_flags)) |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1152 | duplex = "full"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1153 | else |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1154 | duplex = "half"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1155 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1156 | /* Handle the FC at the end so that only these flags would be |
| 1157 | * possibly set. This way we may easily check if there is no FC |
| 1158 | * enabled. |
| 1159 | */ |
| 1160 | if (cur_data.link_report_flags) { |
| 1161 | if (test_bit(BNX2X_LINK_REPORT_RX_FC_ON, |
| 1162 | &cur_data.link_report_flags)) { |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1163 | if (test_bit(BNX2X_LINK_REPORT_TX_FC_ON, |
| 1164 | &cur_data.link_report_flags)) |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1165 | flow = "ON - receive & transmit"; |
| 1166 | else |
| 1167 | flow = "ON - receive"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1168 | } else { |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1169 | flow = "ON - transmit"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1170 | } |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1171 | } else { |
| 1172 | flow = "none"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1173 | } |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 1174 | netdev_info(bp->dev, "NIC Link is Up, %d Mbps %s duplex, Flow control: %s\n", |
| 1175 | cur_data.line_speed, duplex, flow); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1176 | } |
| 1177 | } |
| 1178 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1179 | static void bnx2x_set_next_page_sgl(struct bnx2x_fastpath *fp) |
| 1180 | { |
| 1181 | int i; |
| 1182 | |
| 1183 | for (i = 1; i <= NUM_RX_SGE_PAGES; i++) { |
| 1184 | struct eth_rx_sge *sge; |
| 1185 | |
| 1186 | sge = &fp->rx_sge_ring[RX_SGE_CNT * i - 2]; |
| 1187 | sge->addr_hi = |
| 1188 | cpu_to_le32(U64_HI(fp->rx_sge_mapping + |
| 1189 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); |
| 1190 | |
| 1191 | sge->addr_lo = |
| 1192 | cpu_to_le32(U64_LO(fp->rx_sge_mapping + |
| 1193 | BCM_PAGE_SIZE*(i % NUM_RX_SGE_PAGES))); |
| 1194 | } |
| 1195 | } |
| 1196 | |
| 1197 | static void bnx2x_free_tpa_pool(struct bnx2x *bp, |
| 1198 | struct bnx2x_fastpath *fp, int last) |
| 1199 | { |
| 1200 | int i; |
| 1201 | |
| 1202 | for (i = 0; i < last; i++) { |
| 1203 | struct bnx2x_agg_info *tpa_info = &fp->tpa_info[i]; |
| 1204 | struct sw_rx_bd *first_buf = &tpa_info->first_buf; |
| 1205 | u8 *data = first_buf->data; |
| 1206 | |
| 1207 | if (data == NULL) { |
| 1208 | DP(NETIF_MSG_IFDOWN, "tpa bin %d empty on free\n", i); |
| 1209 | continue; |
| 1210 | } |
| 1211 | if (tpa_info->tpa_state == BNX2X_TPA_START) |
| 1212 | dma_unmap_single(&bp->pdev->dev, |
| 1213 | dma_unmap_addr(first_buf, mapping), |
| 1214 | fp->rx_buf_size, DMA_FROM_DEVICE); |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1215 | bnx2x_frag_free(fp, data); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1216 | first_buf->data = NULL; |
| 1217 | } |
| 1218 | } |
| 1219 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1220 | void bnx2x_init_rx_rings_cnic(struct bnx2x *bp) |
| 1221 | { |
| 1222 | int j; |
| 1223 | |
| 1224 | for_each_rx_queue_cnic(bp, j) { |
| 1225 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1226 | |
| 1227 | fp->rx_bd_cons = 0; |
| 1228 | |
| 1229 | /* Activate BD ring */ |
| 1230 | /* Warning! |
| 1231 | * this will generate an interrupt (to the TSTORM) |
| 1232 | * must only be done after chip is initialized |
| 1233 | */ |
| 1234 | bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod, |
| 1235 | fp->rx_sge_prod); |
| 1236 | } |
| 1237 | } |
| 1238 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1239 | void bnx2x_init_rx_rings(struct bnx2x *bp) |
| 1240 | { |
| 1241 | int func = BP_FUNC(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1242 | u16 ring_prod; |
| 1243 | int i, j; |
| 1244 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1245 | /* Allocate TPA resources */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1246 | for_each_eth_queue(bp, j) { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1247 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1248 | |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1249 | DP(NETIF_MSG_IFUP, |
| 1250 | "mtu %d rx_buf_size %d\n", bp->dev->mtu, fp->rx_buf_size); |
| 1251 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1252 | if (!fp->disable_tpa) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1253 | /* Fill the per-aggregtion pool */ |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 1254 | for (i = 0; i < MAX_AGG_QS(bp); i++) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1255 | struct bnx2x_agg_info *tpa_info = |
| 1256 | &fp->tpa_info[i]; |
| 1257 | struct sw_rx_bd *first_buf = |
| 1258 | &tpa_info->first_buf; |
| 1259 | |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1260 | first_buf->data = bnx2x_frag_alloc(fp); |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1261 | if (!first_buf->data) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1262 | BNX2X_ERR("Failed to allocate TPA skb pool for queue[%d] - disabling TPA on this queue!\n", |
| 1263 | j); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1264 | bnx2x_free_tpa_pool(bp, fp, i); |
| 1265 | fp->disable_tpa = 1; |
| 1266 | break; |
| 1267 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1268 | dma_unmap_addr_set(first_buf, mapping, 0); |
| 1269 | tpa_info->tpa_state = BNX2X_TPA_STOP; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1270 | } |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1271 | |
| 1272 | /* "next page" elements initialization */ |
| 1273 | bnx2x_set_next_page_sgl(fp); |
| 1274 | |
| 1275 | /* set SGEs bit mask */ |
| 1276 | bnx2x_init_sge_ring_bit_mask(fp); |
| 1277 | |
| 1278 | /* Allocate SGEs and initialize the ring elements */ |
| 1279 | for (i = 0, ring_prod = 0; |
| 1280 | i < MAX_RX_SGE_CNT*NUM_RX_SGE_PAGES; i++) { |
| 1281 | |
| 1282 | if (bnx2x_alloc_rx_sge(bp, fp, ring_prod) < 0) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1283 | BNX2X_ERR("was only able to allocate %d rx sges\n", |
| 1284 | i); |
| 1285 | BNX2X_ERR("disabling TPA for queue[%d]\n", |
| 1286 | j); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1287 | /* Cleanup already allocated elements */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1288 | bnx2x_free_rx_sge_range(bp, fp, |
| 1289 | ring_prod); |
| 1290 | bnx2x_free_tpa_pool(bp, fp, |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 1291 | MAX_AGG_QS(bp)); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1292 | fp->disable_tpa = 1; |
| 1293 | ring_prod = 0; |
| 1294 | break; |
| 1295 | } |
| 1296 | ring_prod = NEXT_SGE_IDX(ring_prod); |
| 1297 | } |
| 1298 | |
| 1299 | fp->rx_sge_prod = ring_prod; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1300 | } |
| 1301 | } |
| 1302 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1303 | for_each_eth_queue(bp, j) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1304 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1305 | |
| 1306 | fp->rx_bd_cons = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1307 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1308 | /* Activate BD ring */ |
| 1309 | /* Warning! |
| 1310 | * this will generate an interrupt (to the TSTORM) |
| 1311 | * must only be done after chip is initialized |
| 1312 | */ |
| 1313 | bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod, |
| 1314 | fp->rx_sge_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1315 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1316 | if (j != 0) |
| 1317 | continue; |
| 1318 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1319 | if (CHIP_IS_E1(bp)) { |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 1320 | REG_WR(bp, BAR_USTRORM_INTMEM + |
| 1321 | USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func), |
| 1322 | U64_LO(fp->rx_comp_mapping)); |
| 1323 | REG_WR(bp, BAR_USTRORM_INTMEM + |
| 1324 | USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func) + 4, |
| 1325 | U64_HI(fp->rx_comp_mapping)); |
| 1326 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1327 | } |
| 1328 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 1329 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1330 | static void bnx2x_free_tx_skbs_queue(struct bnx2x_fastpath *fp) |
| 1331 | { |
| 1332 | u8 cos; |
| 1333 | struct bnx2x *bp = fp->bp; |
| 1334 | |
| 1335 | for_each_cos_in_tx_queue(fp, cos) { |
| 1336 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
| 1337 | unsigned pkts_compl = 0, bytes_compl = 0; |
| 1338 | |
| 1339 | u16 sw_prod = txdata->tx_pkt_prod; |
| 1340 | u16 sw_cons = txdata->tx_pkt_cons; |
| 1341 | |
| 1342 | while (sw_cons != sw_prod) { |
| 1343 | bnx2x_free_tx_pkt(bp, txdata, TX_BD(sw_cons), |
| 1344 | &pkts_compl, &bytes_compl); |
| 1345 | sw_cons++; |
| 1346 | } |
| 1347 | |
| 1348 | netdev_tx_reset_queue( |
| 1349 | netdev_get_tx_queue(bp->dev, |
| 1350 | txdata->txq_index)); |
| 1351 | } |
| 1352 | } |
| 1353 | |
| 1354 | static void bnx2x_free_tx_skbs_cnic(struct bnx2x *bp) |
| 1355 | { |
| 1356 | int i; |
| 1357 | |
| 1358 | for_each_tx_queue_cnic(bp, i) { |
| 1359 | bnx2x_free_tx_skbs_queue(&bp->fp[i]); |
| 1360 | } |
| 1361 | } |
| 1362 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1363 | static void bnx2x_free_tx_skbs(struct bnx2x *bp) |
| 1364 | { |
| 1365 | int i; |
| 1366 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1367 | for_each_eth_queue(bp, i) { |
| 1368 | bnx2x_free_tx_skbs_queue(&bp->fp[i]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1369 | } |
| 1370 | } |
| 1371 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1372 | static void bnx2x_free_rx_bds(struct bnx2x_fastpath *fp) |
| 1373 | { |
| 1374 | struct bnx2x *bp = fp->bp; |
| 1375 | int i; |
| 1376 | |
| 1377 | /* ring wasn't allocated */ |
| 1378 | if (fp->rx_buf_ring == NULL) |
| 1379 | return; |
| 1380 | |
| 1381 | for (i = 0; i < NUM_RX_BD; i++) { |
| 1382 | struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[i]; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1383 | u8 *data = rx_buf->data; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1384 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1385 | if (data == NULL) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1386 | continue; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1387 | dma_unmap_single(&bp->pdev->dev, |
| 1388 | dma_unmap_addr(rx_buf, mapping), |
| 1389 | fp->rx_buf_size, DMA_FROM_DEVICE); |
| 1390 | |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1391 | rx_buf->data = NULL; |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1392 | bnx2x_frag_free(fp, data); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1393 | } |
| 1394 | } |
| 1395 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1396 | static void bnx2x_free_rx_skbs_cnic(struct bnx2x *bp) |
| 1397 | { |
| 1398 | int j; |
| 1399 | |
| 1400 | for_each_rx_queue_cnic(bp, j) { |
| 1401 | bnx2x_free_rx_bds(&bp->fp[j]); |
| 1402 | } |
| 1403 | } |
| 1404 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1405 | static void bnx2x_free_rx_skbs(struct bnx2x *bp) |
| 1406 | { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1407 | int j; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1408 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1409 | for_each_eth_queue(bp, j) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1410 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1411 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1412 | bnx2x_free_rx_bds(fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1413 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1414 | if (!fp->disable_tpa) |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 1415 | bnx2x_free_tpa_pool(bp, fp, MAX_AGG_QS(bp)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1416 | } |
| 1417 | } |
| 1418 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1419 | void bnx2x_free_skbs_cnic(struct bnx2x *bp) |
| 1420 | { |
| 1421 | bnx2x_free_tx_skbs_cnic(bp); |
| 1422 | bnx2x_free_rx_skbs_cnic(bp); |
| 1423 | } |
| 1424 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1425 | void bnx2x_free_skbs(struct bnx2x *bp) |
| 1426 | { |
| 1427 | bnx2x_free_tx_skbs(bp); |
| 1428 | bnx2x_free_rx_skbs(bp); |
| 1429 | } |
| 1430 | |
Dmitry Kravkov | e3835b9 | 2011-03-06 10:50:44 +0000 | [diff] [blame] | 1431 | void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value) |
| 1432 | { |
| 1433 | /* load old values */ |
| 1434 | u32 mf_cfg = bp->mf_config[BP_VN(bp)]; |
| 1435 | |
| 1436 | if (value != bnx2x_extract_max_cfg(bp, mf_cfg)) { |
| 1437 | /* leave all but MAX value */ |
| 1438 | mf_cfg &= ~FUNC_MF_CFG_MAX_BW_MASK; |
| 1439 | |
| 1440 | /* set new MAX value */ |
| 1441 | mf_cfg |= (value << FUNC_MF_CFG_MAX_BW_SHIFT) |
| 1442 | & FUNC_MF_CFG_MAX_BW_MASK; |
| 1443 | |
| 1444 | bnx2x_fw_command(bp, DRV_MSG_CODE_SET_MF_BW, mf_cfg); |
| 1445 | } |
| 1446 | } |
| 1447 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1448 | /** |
| 1449 | * bnx2x_free_msix_irqs - free previously requested MSI-X IRQ vectors |
| 1450 | * |
| 1451 | * @bp: driver handle |
| 1452 | * @nvecs: number of vectors to be released |
| 1453 | */ |
| 1454 | static void bnx2x_free_msix_irqs(struct bnx2x *bp, int nvecs) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1455 | { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1456 | int i, offset = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1457 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1458 | if (nvecs == offset) |
| 1459 | return; |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1460 | |
| 1461 | /* VFs don't have a default SB */ |
| 1462 | if (IS_PF(bp)) { |
| 1463 | free_irq(bp->msix_table[offset].vector, bp->dev); |
| 1464 | DP(NETIF_MSG_IFDOWN, "released sp irq (%d)\n", |
| 1465 | bp->msix_table[offset].vector); |
| 1466 | offset++; |
| 1467 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1468 | |
| 1469 | if (CNIC_SUPPORT(bp)) { |
| 1470 | if (nvecs == offset) |
| 1471 | return; |
| 1472 | offset++; |
| 1473 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1474 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1475 | for_each_eth_queue(bp, i) { |
| 1476 | if (nvecs == offset) |
| 1477 | return; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1478 | DP(NETIF_MSG_IFDOWN, "about to release fp #%d->%d irq\n", |
| 1479 | i, bp->msix_table[offset].vector); |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1480 | |
| 1481 | free_irq(bp->msix_table[offset++].vector, &bp->fp[i]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1482 | } |
| 1483 | } |
| 1484 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1485 | void bnx2x_free_irq(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1486 | { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1487 | if (bp->flags & USING_MSIX_FLAG && |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1488 | !(bp->flags & USING_SINGLE_MSIX_FLAG)) { |
| 1489 | int nvecs = BNX2X_NUM_ETH_QUEUES(bp) + CNIC_SUPPORT(bp); |
| 1490 | |
| 1491 | /* vfs don't have a default status block */ |
| 1492 | if (IS_PF(bp)) |
| 1493 | nvecs++; |
| 1494 | |
| 1495 | bnx2x_free_msix_irqs(bp, nvecs); |
| 1496 | } else { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1497 | free_irq(bp->dev->irq, bp->dev); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1498 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1499 | } |
| 1500 | |
Merav Sicron | 0e8d2ec | 2012-06-19 07:48:30 +0000 | [diff] [blame] | 1501 | int bnx2x_enable_msix(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1502 | { |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1503 | int msix_vec = 0, i, rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1504 | |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1505 | /* VFs don't have a default status block */ |
| 1506 | if (IS_PF(bp)) { |
| 1507 | bp->msix_table[msix_vec].entry = msix_vec; |
| 1508 | BNX2X_DEV_INFO("msix_table[0].entry = %d (slowpath)\n", |
| 1509 | bp->msix_table[0].entry); |
| 1510 | msix_vec++; |
| 1511 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1512 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1513 | /* Cnic requires an msix vector for itself */ |
| 1514 | if (CNIC_SUPPORT(bp)) { |
| 1515 | bp->msix_table[msix_vec].entry = msix_vec; |
| 1516 | BNX2X_DEV_INFO("msix_table[%d].entry = %d (CNIC)\n", |
| 1517 | msix_vec, bp->msix_table[msix_vec].entry); |
| 1518 | msix_vec++; |
| 1519 | } |
| 1520 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1521 | /* We need separate vectors for ETH queues only (not FCoE) */ |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1522 | for_each_eth_queue(bp, i) { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1523 | bp->msix_table[msix_vec].entry = msix_vec; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1524 | BNX2X_DEV_INFO("msix_table[%d].entry = %d (fastpath #%u)\n", |
| 1525 | msix_vec, msix_vec, i); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1526 | msix_vec++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1527 | } |
| 1528 | |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1529 | DP(BNX2X_MSG_SP, "about to request enable msix with %d vectors\n", |
| 1530 | msix_vec); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1531 | |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1532 | rc = pci_enable_msix(bp->pdev, &bp->msix_table[0], msix_vec); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1533 | |
| 1534 | /* |
| 1535 | * reconfigure number of tx/rx queues according to available |
| 1536 | * MSI-X vectors |
| 1537 | */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1538 | if (rc >= BNX2X_MIN_MSIX_VEC_CNT(bp)) { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1539 | /* how less vectors we will have? */ |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 1540 | int diff = msix_vec - rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1541 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1542 | 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] | 1543 | |
| 1544 | rc = pci_enable_msix(bp->pdev, &bp->msix_table[0], rc); |
| 1545 | |
| 1546 | if (rc) { |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1547 | BNX2X_DEV_INFO("MSI-X is not attainable rc %d\n", rc); |
| 1548 | goto no_msix; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1549 | } |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1550 | /* |
| 1551 | * decrease number of queues by number of unallocated entries |
| 1552 | */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1553 | bp->num_ethernet_queues -= diff; |
| 1554 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1555 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1556 | BNX2X_DEV_INFO("New queue configuration set: %d\n", |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1557 | bp->num_queues); |
| 1558 | } else if (rc > 0) { |
| 1559 | /* Get by with single vector */ |
| 1560 | rc = pci_enable_msix(bp->pdev, &bp->msix_table[0], 1); |
| 1561 | if (rc) { |
| 1562 | BNX2X_DEV_INFO("Single MSI-X is not attainable rc %d\n", |
| 1563 | rc); |
| 1564 | goto no_msix; |
| 1565 | } |
| 1566 | |
| 1567 | BNX2X_DEV_INFO("Using single MSI-X vector\n"); |
| 1568 | bp->flags |= USING_SINGLE_MSIX_FLAG; |
| 1569 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1570 | BNX2X_DEV_INFO("set number of queues to 1\n"); |
| 1571 | bp->num_ethernet_queues = 1; |
| 1572 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1573 | } else if (rc < 0) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1574 | BNX2X_DEV_INFO("MSI-X is not attainable rc %d\n", rc); |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1575 | goto no_msix; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1576 | } |
| 1577 | |
| 1578 | bp->flags |= USING_MSIX_FLAG; |
| 1579 | |
| 1580 | return 0; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1581 | |
| 1582 | no_msix: |
| 1583 | /* fall to INTx if not enough memory */ |
| 1584 | if (rc == -ENOMEM) |
| 1585 | bp->flags |= DISABLE_MSI_FLAG; |
| 1586 | |
| 1587 | return rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1588 | } |
| 1589 | |
| 1590 | static int bnx2x_req_msix_irqs(struct bnx2x *bp) |
| 1591 | { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1592 | int i, rc, offset = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1593 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1594 | /* no default status block for vf */ |
| 1595 | if (IS_PF(bp)) { |
| 1596 | rc = request_irq(bp->msix_table[offset++].vector, |
| 1597 | bnx2x_msix_sp_int, 0, |
| 1598 | bp->dev->name, bp->dev); |
| 1599 | if (rc) { |
| 1600 | BNX2X_ERR("request sp irq failed\n"); |
| 1601 | return -EBUSY; |
| 1602 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1603 | } |
| 1604 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1605 | if (CNIC_SUPPORT(bp)) |
| 1606 | offset++; |
| 1607 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1608 | for_each_eth_queue(bp, i) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1609 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
| 1610 | snprintf(fp->name, sizeof(fp->name), "%s-fp-%d", |
| 1611 | bp->dev->name, i); |
| 1612 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1613 | rc = request_irq(bp->msix_table[offset].vector, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1614 | bnx2x_msix_fp_int, 0, fp->name, fp); |
| 1615 | if (rc) { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1616 | BNX2X_ERR("request fp #%d irq (%d) failed rc %d\n", i, |
| 1617 | bp->msix_table[offset].vector, rc); |
| 1618 | bnx2x_free_msix_irqs(bp, offset); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1619 | return -EBUSY; |
| 1620 | } |
| 1621 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1622 | offset++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1623 | } |
| 1624 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1625 | i = BNX2X_NUM_ETH_QUEUES(bp); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 1626 | if (IS_PF(bp)) { |
| 1627 | offset = 1 + CNIC_SUPPORT(bp); |
| 1628 | netdev_info(bp->dev, |
| 1629 | "using MSI-X IRQs: sp %d fp[%d] %d ... fp[%d] %d\n", |
| 1630 | bp->msix_table[0].vector, |
| 1631 | 0, bp->msix_table[offset].vector, |
| 1632 | i - 1, bp->msix_table[offset + i - 1].vector); |
| 1633 | } else { |
| 1634 | offset = CNIC_SUPPORT(bp); |
| 1635 | netdev_info(bp->dev, |
| 1636 | "using MSI-X IRQs: fp[%d] %d ... fp[%d] %d\n", |
| 1637 | 0, bp->msix_table[offset].vector, |
| 1638 | i - 1, bp->msix_table[offset + i - 1].vector); |
| 1639 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1640 | return 0; |
| 1641 | } |
| 1642 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1643 | int bnx2x_enable_msi(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1644 | { |
| 1645 | int rc; |
| 1646 | |
| 1647 | rc = pci_enable_msi(bp->pdev); |
| 1648 | if (rc) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1649 | BNX2X_DEV_INFO("MSI is not attainable\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1650 | return -1; |
| 1651 | } |
| 1652 | bp->flags |= USING_MSI_FLAG; |
| 1653 | |
| 1654 | return 0; |
| 1655 | } |
| 1656 | |
| 1657 | static int bnx2x_req_irq(struct bnx2x *bp) |
| 1658 | { |
| 1659 | unsigned long flags; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1660 | unsigned int irq; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1661 | |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1662 | if (bp->flags & (USING_MSI_FLAG | USING_MSIX_FLAG)) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1663 | flags = 0; |
| 1664 | else |
| 1665 | flags = IRQF_SHARED; |
| 1666 | |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1667 | if (bp->flags & USING_MSIX_FLAG) |
| 1668 | irq = bp->msix_table[0].vector; |
| 1669 | else |
| 1670 | irq = bp->pdev->irq; |
| 1671 | |
| 1672 | return request_irq(irq, bnx2x_interrupt, flags, bp->dev->name, bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1673 | } |
| 1674 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1675 | static int bnx2x_setup_irqs(struct bnx2x *bp) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1676 | { |
| 1677 | int rc = 0; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1678 | if (bp->flags & USING_MSIX_FLAG && |
| 1679 | !(bp->flags & USING_SINGLE_MSIX_FLAG)) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1680 | rc = bnx2x_req_msix_irqs(bp); |
| 1681 | if (rc) |
| 1682 | return rc; |
| 1683 | } else { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1684 | rc = bnx2x_req_irq(bp); |
| 1685 | if (rc) { |
| 1686 | BNX2X_ERR("IRQ request failed rc %d, aborting\n", rc); |
| 1687 | return rc; |
| 1688 | } |
| 1689 | if (bp->flags & USING_MSI_FLAG) { |
| 1690 | bp->dev->irq = bp->pdev->irq; |
Dmitry Kravkov | 30a5de7 | 2012-04-03 18:41:26 +0000 | [diff] [blame] | 1691 | netdev_info(bp->dev, "using MSI IRQ %d\n", |
| 1692 | bp->dev->irq); |
| 1693 | } |
| 1694 | if (bp->flags & USING_MSIX_FLAG) { |
| 1695 | bp->dev->irq = bp->msix_table[0].vector; |
| 1696 | netdev_info(bp->dev, "using MSIX IRQ %d\n", |
| 1697 | bp->dev->irq); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1698 | } |
| 1699 | } |
| 1700 | |
| 1701 | return 0; |
| 1702 | } |
| 1703 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1704 | static void bnx2x_napi_enable_cnic(struct bnx2x *bp) |
| 1705 | { |
| 1706 | int i; |
| 1707 | |
| 1708 | for_each_rx_queue_cnic(bp, i) |
| 1709 | napi_enable(&bnx2x_fp(bp, i, napi)); |
| 1710 | } |
| 1711 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1712 | static void bnx2x_napi_enable(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1713 | { |
| 1714 | int i; |
| 1715 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1716 | for_each_eth_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1717 | napi_enable(&bnx2x_fp(bp, i, napi)); |
| 1718 | } |
| 1719 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1720 | static void bnx2x_napi_disable_cnic(struct bnx2x *bp) |
| 1721 | { |
| 1722 | int i; |
| 1723 | |
| 1724 | for_each_rx_queue_cnic(bp, i) |
| 1725 | napi_disable(&bnx2x_fp(bp, i, napi)); |
| 1726 | } |
| 1727 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1728 | static void bnx2x_napi_disable(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1729 | { |
| 1730 | int i; |
| 1731 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1732 | for_each_eth_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1733 | napi_disable(&bnx2x_fp(bp, i, napi)); |
| 1734 | } |
| 1735 | |
| 1736 | void bnx2x_netif_start(struct bnx2x *bp) |
| 1737 | { |
Dmitry Kravkov | 4b7ed89 | 2011-06-14 01:32:53 +0000 | [diff] [blame] | 1738 | if (netif_running(bp->dev)) { |
| 1739 | bnx2x_napi_enable(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1740 | if (CNIC_LOADED(bp)) |
| 1741 | bnx2x_napi_enable_cnic(bp); |
Dmitry Kravkov | 4b7ed89 | 2011-06-14 01:32:53 +0000 | [diff] [blame] | 1742 | bnx2x_int_enable(bp); |
| 1743 | if (bp->state == BNX2X_STATE_OPEN) |
| 1744 | netif_tx_wake_all_queues(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1745 | } |
| 1746 | } |
| 1747 | |
| 1748 | void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw) |
| 1749 | { |
| 1750 | bnx2x_int_disable_sync(bp, disable_hw); |
| 1751 | bnx2x_napi_disable(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1752 | if (CNIC_LOADED(bp)) |
| 1753 | bnx2x_napi_disable_cnic(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1754 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1755 | |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1756 | u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb) |
| 1757 | { |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1758 | struct bnx2x *bp = netdev_priv(dev); |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1759 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1760 | if (CNIC_LOADED(bp) && !NO_FCOE(bp)) { |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1761 | struct ethhdr *hdr = (struct ethhdr *)skb->data; |
| 1762 | u16 ether_type = ntohs(hdr->h_proto); |
| 1763 | |
| 1764 | /* Skip VLAN tag if present */ |
| 1765 | if (ether_type == ETH_P_8021Q) { |
| 1766 | struct vlan_ethhdr *vhdr = |
| 1767 | (struct vlan_ethhdr *)skb->data; |
| 1768 | |
| 1769 | ether_type = ntohs(vhdr->h_vlan_encapsulated_proto); |
| 1770 | } |
| 1771 | |
| 1772 | /* If ethertype is FCoE or FIP - use FCoE ring */ |
| 1773 | if ((ether_type == ETH_P_FCOE) || (ether_type == ETH_P_FIP)) |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1774 | return bnx2x_fcoe_tx(bp, txq_index); |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1775 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1776 | |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1777 | /* select a non-FCoE queue */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1778 | return __skb_tx_hash(dev, skb, BNX2X_NUM_ETH_QUEUES(bp)); |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1779 | } |
| 1780 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1781 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1782 | void bnx2x_set_num_queues(struct bnx2x *bp) |
| 1783 | { |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1784 | /* RSS queues */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1785 | bp->num_ethernet_queues = bnx2x_calc_num_queues(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1786 | |
Barak Witkowski | a334872 | 2012-04-23 03:04:46 +0000 | [diff] [blame] | 1787 | /* override in STORAGE SD modes */ |
| 1788 | if (IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp)) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1789 | bp->num_ethernet_queues = 1; |
| 1790 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1791 | /* Add special queues */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1792 | bp->num_cnic_queues = CNIC_SUPPORT(bp); /* For FCOE */ |
| 1793 | bp->num_queues = bp->num_ethernet_queues + bp->num_cnic_queues; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 1794 | |
| 1795 | 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] | 1796 | } |
| 1797 | |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1798 | /** |
| 1799 | * bnx2x_set_real_num_queues - configure netdev->real_num_[tx,rx]_queues |
| 1800 | * |
| 1801 | * @bp: Driver handle |
| 1802 | * |
| 1803 | * We currently support for at most 16 Tx queues for each CoS thus we will |
| 1804 | * allocate a multiple of 16 for ETH L2 rings according to the value of the |
| 1805 | * bp->max_cos. |
| 1806 | * |
| 1807 | * If there is an FCoE L2 queue the appropriate Tx queue will have the next |
| 1808 | * index after all ETH L2 indices. |
| 1809 | * |
| 1810 | * If the actual number of Tx queues (for each CoS) is less than 16 then there |
| 1811 | * will be the holes at the end of each group of 16 ETh L2 indices (0..15, |
| 1812 | * 16..31,...) with indicies that are not coupled with any real Tx queue. |
| 1813 | * |
| 1814 | * The proper configuration of skb->queue_mapping is handled by |
| 1815 | * bnx2x_select_queue() and __skb_tx_hash(). |
| 1816 | * |
| 1817 | * bnx2x_setup_tc() takes care of the proper TC mappings so that __skb_tx_hash() |
| 1818 | * will return a proper Tx index if TC is enabled (netdev->num_tc > 0). |
| 1819 | */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1820 | 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] | 1821 | { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1822 | int rc, tx, rx; |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1823 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 1824 | tx = BNX2X_NUM_ETH_QUEUES(bp) * bp->max_cos; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1825 | rx = BNX2X_NUM_ETH_QUEUES(bp); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1826 | |
| 1827 | /* account for fcoe queue */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 1828 | if (include_cnic && !NO_FCOE(bp)) { |
| 1829 | rx++; |
| 1830 | tx++; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1831 | } |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1832 | |
| 1833 | rc = netif_set_real_num_tx_queues(bp->dev, tx); |
| 1834 | if (rc) { |
| 1835 | BNX2X_ERR("Failed to set real number of Tx queues: %d\n", rc); |
| 1836 | return rc; |
| 1837 | } |
| 1838 | rc = netif_set_real_num_rx_queues(bp->dev, rx); |
| 1839 | if (rc) { |
| 1840 | BNX2X_ERR("Failed to set real number of Rx queues: %d\n", rc); |
| 1841 | return rc; |
| 1842 | } |
| 1843 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 1844 | 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] | 1845 | tx, rx); |
| 1846 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1847 | return rc; |
| 1848 | } |
| 1849 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1850 | static void bnx2x_set_rx_buf_size(struct bnx2x *bp) |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1851 | { |
| 1852 | int i; |
| 1853 | |
| 1854 | for_each_queue(bp, i) { |
| 1855 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1856 | u32 mtu; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1857 | |
| 1858 | /* Always use a mini-jumbo MTU for the FCoE L2 ring */ |
| 1859 | if (IS_FCOE_IDX(i)) |
| 1860 | /* |
| 1861 | * Although there are no IP frames expected to arrive to |
| 1862 | * this ring we still want to add an |
| 1863 | * IP_HEADER_ALIGNMENT_PADDING to prevent a buffer |
| 1864 | * overrun attack. |
| 1865 | */ |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1866 | mtu = BNX2X_FCOE_MINI_JUMBO_MTU; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1867 | else |
Eric Dumazet | e52fcb2 | 2011-11-14 06:05:34 +0000 | [diff] [blame] | 1868 | mtu = bp->dev->mtu; |
| 1869 | fp->rx_buf_size = BNX2X_FW_RX_ALIGN_START + |
| 1870 | IP_HEADER_ALIGNMENT_PADDING + |
| 1871 | ETH_OVREHEAD + |
| 1872 | mtu + |
| 1873 | BNX2X_FW_RX_ALIGN_END; |
| 1874 | /* Note : rx_buf_size doesnt take into account NET_SKB_PAD */ |
Eric Dumazet | d46d132 | 2012-12-10 12:16:06 +0000 | [diff] [blame] | 1875 | if (fp->rx_buf_size + NET_SKB_PAD <= PAGE_SIZE) |
| 1876 | fp->rx_frag_size = fp->rx_buf_size + NET_SKB_PAD; |
| 1877 | else |
| 1878 | fp->rx_frag_size = 0; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1879 | } |
| 1880 | } |
| 1881 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1882 | static int bnx2x_init_rss_pf(struct bnx2x *bp) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1883 | { |
| 1884 | int i; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1885 | u8 num_eth_queues = BNX2X_NUM_ETH_QUEUES(bp); |
| 1886 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1887 | /* Prepare the initial contents fo the indirection table if RSS is |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1888 | * enabled |
| 1889 | */ |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 1890 | for (i = 0; i < sizeof(bp->rss_conf_obj.ind_table); i++) |
| 1891 | bp->rss_conf_obj.ind_table[i] = |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1892 | bp->fp->cl_id + |
| 1893 | ethtool_rxfh_indir_default(i, num_eth_queues); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1894 | |
| 1895 | /* |
| 1896 | * For 57710 and 57711 SEARCHER configuration (rss_keys) is |
| 1897 | * per-port, so if explicit configuration is needed , do it only |
| 1898 | * for a PMF. |
| 1899 | * |
| 1900 | * For 57712 and newer on the other hand it's a per-function |
| 1901 | * configuration. |
| 1902 | */ |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 1903 | 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] | 1904 | } |
| 1905 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1906 | int bnx2x_config_rss_pf(struct bnx2x *bp, struct bnx2x_rss_config_obj *rss_obj, |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 1907 | bool config_hash) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1908 | { |
Yuval Mintz | 3b60306 | 2012-03-18 10:33:39 +0000 | [diff] [blame] | 1909 | struct bnx2x_config_rss_params params = {NULL}; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1910 | |
| 1911 | /* Although RSS is meaningless when there is a single HW queue we |
| 1912 | * still need it enabled in order to have HW Rx hash generated. |
| 1913 | * |
| 1914 | * if (!is_eth_multi(bp)) |
| 1915 | * bp->multi_mode = ETH_RSS_MODE_DISABLED; |
| 1916 | */ |
| 1917 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1918 | params.rss_obj = rss_obj; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1919 | |
| 1920 | __set_bit(RAMROD_COMP_WAIT, ¶ms.ramrod_flags); |
| 1921 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1922 | __set_bit(BNX2X_RSS_MODE_REGULAR, ¶ms.rss_flags); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1923 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1924 | /* RSS configuration */ |
| 1925 | __set_bit(BNX2X_RSS_IPV4, ¶ms.rss_flags); |
| 1926 | __set_bit(BNX2X_RSS_IPV4_TCP, ¶ms.rss_flags); |
| 1927 | __set_bit(BNX2X_RSS_IPV6, ¶ms.rss_flags); |
| 1928 | __set_bit(BNX2X_RSS_IPV6_TCP, ¶ms.rss_flags); |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 1929 | if (rss_obj->udp_rss_v4) |
| 1930 | __set_bit(BNX2X_RSS_IPV4_UDP, ¶ms.rss_flags); |
| 1931 | if (rss_obj->udp_rss_v6) |
| 1932 | __set_bit(BNX2X_RSS_IPV6_UDP, ¶ms.rss_flags); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1933 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1934 | /* Hash bits */ |
| 1935 | params.rss_result_mask = MULTI_MASK; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1936 | |
Merav Sicron | 5d317c6a | 2012-06-19 07:48:24 +0000 | [diff] [blame] | 1937 | memcpy(params.ind_table, rss_obj->ind_table, sizeof(params.ind_table)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1938 | |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1939 | if (config_hash) { |
| 1940 | /* RSS keys */ |
Akinobu Mita | 8376d0b | 2012-12-17 16:04:28 -0800 | [diff] [blame] | 1941 | prandom_bytes(params.rss_key, sizeof(params.rss_key)); |
Dmitry Kravkov | 9630523 | 2012-04-03 18:41:30 +0000 | [diff] [blame] | 1942 | __set_bit(BNX2X_RSS_SET_SRCH, ¶ms.rss_flags); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1943 | } |
| 1944 | |
| 1945 | return bnx2x_config_rss(bp, ¶ms); |
| 1946 | } |
| 1947 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 1948 | static int bnx2x_init_hw(struct bnx2x *bp, u32 load_code) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1949 | { |
Yuval Mintz | 3b60306 | 2012-03-18 10:33:39 +0000 | [diff] [blame] | 1950 | struct bnx2x_func_state_params func_params = {NULL}; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1951 | |
| 1952 | /* Prepare parameters for function state transitions */ |
| 1953 | __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags); |
| 1954 | |
| 1955 | func_params.f_obj = &bp->func_obj; |
| 1956 | func_params.cmd = BNX2X_F_CMD_HW_INIT; |
| 1957 | |
| 1958 | func_params.params.hw_init.load_phase = load_code; |
| 1959 | |
| 1960 | return bnx2x_func_state_change(bp, &func_params); |
| 1961 | } |
| 1962 | |
| 1963 | /* |
| 1964 | * Cleans the object that have internal lists without sending |
| 1965 | * ramrods. Should be run when interrutps are disabled. |
| 1966 | */ |
| 1967 | static void bnx2x_squeeze_objects(struct bnx2x *bp) |
| 1968 | { |
| 1969 | int rc; |
| 1970 | unsigned long ramrod_flags = 0, vlan_mac_flags = 0; |
Yuval Mintz | 3b60306 | 2012-03-18 10:33:39 +0000 | [diff] [blame] | 1971 | struct bnx2x_mcast_ramrod_params rparam = {NULL}; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 1972 | struct bnx2x_vlan_mac_obj *mac_obj = &bp->sp_objs->mac_obj; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1973 | |
| 1974 | /***************** Cleanup MACs' object first *************************/ |
| 1975 | |
| 1976 | /* Wait for completion of requested */ |
| 1977 | __set_bit(RAMROD_COMP_WAIT, &ramrod_flags); |
| 1978 | /* Perform a dry cleanup */ |
| 1979 | __set_bit(RAMROD_DRV_CLR_ONLY, &ramrod_flags); |
| 1980 | |
| 1981 | /* Clean ETH primary MAC */ |
| 1982 | __set_bit(BNX2X_ETH_MAC, &vlan_mac_flags); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 1983 | 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] | 1984 | &ramrod_flags); |
| 1985 | if (rc != 0) |
| 1986 | BNX2X_ERR("Failed to clean ETH MACs: %d\n", rc); |
| 1987 | |
| 1988 | /* Cleanup UC list */ |
| 1989 | vlan_mac_flags = 0; |
| 1990 | __set_bit(BNX2X_UC_LIST_MAC, &vlan_mac_flags); |
| 1991 | rc = mac_obj->delete_all(bp, mac_obj, &vlan_mac_flags, |
| 1992 | &ramrod_flags); |
| 1993 | if (rc != 0) |
| 1994 | BNX2X_ERR("Failed to clean UC list MACs: %d\n", rc); |
| 1995 | |
| 1996 | /***************** Now clean mcast object *****************************/ |
| 1997 | rparam.mcast_obj = &bp->mcast_obj; |
| 1998 | __set_bit(RAMROD_DRV_CLR_ONLY, &rparam.ramrod_flags); |
| 1999 | |
| 2000 | /* Add a DEL command... */ |
| 2001 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_DEL); |
| 2002 | if (rc < 0) |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2003 | BNX2X_ERR("Failed to add a new DEL command to a multi-cast object: %d\n", |
| 2004 | rc); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2005 | |
| 2006 | /* ...and wait until all pending commands are cleared */ |
| 2007 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); |
| 2008 | while (rc != 0) { |
| 2009 | if (rc < 0) { |
| 2010 | BNX2X_ERR("Failed to clean multi-cast object: %d\n", |
| 2011 | rc); |
| 2012 | return; |
| 2013 | } |
| 2014 | |
| 2015 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); |
| 2016 | } |
| 2017 | } |
| 2018 | |
| 2019 | #ifndef BNX2X_STOP_ON_ERROR |
| 2020 | #define LOAD_ERROR_EXIT(bp, label) \ |
| 2021 | do { \ |
| 2022 | (bp)->state = BNX2X_STATE_ERROR; \ |
| 2023 | goto label; \ |
| 2024 | } while (0) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2025 | |
| 2026 | #define LOAD_ERROR_EXIT_CNIC(bp, label) \ |
| 2027 | do { \ |
| 2028 | bp->cnic_loaded = false; \ |
| 2029 | goto label; \ |
| 2030 | } while (0) |
| 2031 | #else /*BNX2X_STOP_ON_ERROR*/ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2032 | #define LOAD_ERROR_EXIT(bp, label) \ |
| 2033 | do { \ |
| 2034 | (bp)->state = BNX2X_STATE_ERROR; \ |
| 2035 | (bp)->panic = 1; \ |
| 2036 | return -EBUSY; \ |
| 2037 | } while (0) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2038 | #define LOAD_ERROR_EXIT_CNIC(bp, label) \ |
| 2039 | do { \ |
| 2040 | bp->cnic_loaded = false; \ |
| 2041 | (bp)->panic = 1; \ |
| 2042 | return -EBUSY; \ |
| 2043 | } while (0) |
| 2044 | #endif /*BNX2X_STOP_ON_ERROR*/ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2045 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2046 | static void bnx2x_free_fw_stats_mem(struct bnx2x *bp) |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2047 | { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2048 | BNX2X_PCI_FREE(bp->fw_stats, bp->fw_stats_mapping, |
| 2049 | bp->fw_stats_data_sz + bp->fw_stats_req_sz); |
| 2050 | return; |
| 2051 | } |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2052 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2053 | static int bnx2x_alloc_fw_stats_mem(struct bnx2x *bp) |
| 2054 | { |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2055 | int num_groups, vf_headroom = 0; |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2056 | int is_fcoe_stats = NO_FCOE(bp) ? 0 : 1; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2057 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2058 | /* number of queues for statistics is number of eth queues + FCoE */ |
| 2059 | u8 num_queue_stats = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe_stats; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2060 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2061 | /* Total number of FW statistics requests = |
| 2062 | * 1 for port stats + 1 for PF stats + potential 2 for FCoE (fcoe proper |
| 2063 | * and fcoe l2 queue) stats + num of queues (which includes another 1 |
| 2064 | * for fcoe l2 queue if applicable) |
| 2065 | */ |
| 2066 | bp->fw_stats_num = 2 + is_fcoe_stats + num_queue_stats; |
| 2067 | |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2068 | /* vf stats appear in the request list, but their data is allocated by |
| 2069 | * the VFs themselves. We don't include them in the bp->fw_stats_num as |
| 2070 | * it is used to determine where to place the vf stats queries in the |
| 2071 | * request struct |
| 2072 | */ |
| 2073 | if (IS_SRIOV(bp)) |
Ariel Elior | 6411280 | 2013-01-07 00:50:23 +0000 | [diff] [blame] | 2074 | vf_headroom = bnx2x_vf_headroom(bp); |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2075 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2076 | /* Request is built from stats_query_header and an array of |
| 2077 | * stats_query_cmd_group each of which contains |
| 2078 | * STATS_QUERY_CMD_COUNT rules. The real number or requests is |
| 2079 | * configured in the stats_query_header. |
| 2080 | */ |
| 2081 | num_groups = |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2082 | (((bp->fw_stats_num + vf_headroom) / STATS_QUERY_CMD_COUNT) + |
| 2083 | (((bp->fw_stats_num + vf_headroom) % STATS_QUERY_CMD_COUNT) ? |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2084 | 1 : 0)); |
| 2085 | |
Ariel Elior | 8db573b | 2013-01-01 05:22:37 +0000 | [diff] [blame] | 2086 | DP(BNX2X_MSG_SP, "stats fw_stats_num %d, vf headroom %d, num_groups %d\n", |
| 2087 | bp->fw_stats_num, vf_headroom, num_groups); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2088 | bp->fw_stats_req_sz = sizeof(struct stats_query_header) + |
| 2089 | num_groups * sizeof(struct stats_query_cmd_group); |
| 2090 | |
| 2091 | /* Data for statistics requests + stats_counter |
| 2092 | * stats_counter holds per-STORM counters that are incremented |
| 2093 | * when STORM has finished with the current request. |
| 2094 | * memory for FCoE offloaded statistics are counted anyway, |
| 2095 | * even if they will not be sent. |
| 2096 | * VF stats are not accounted for here as the data of VF stats is stored |
| 2097 | * in memory allocated by the VF, not here. |
| 2098 | */ |
| 2099 | bp->fw_stats_data_sz = sizeof(struct per_port_stats) + |
| 2100 | sizeof(struct per_pf_stats) + |
| 2101 | sizeof(struct fcoe_statistics_params) + |
| 2102 | sizeof(struct per_queue_stats) * num_queue_stats + |
| 2103 | sizeof(struct stats_counter); |
| 2104 | |
| 2105 | BNX2X_PCI_ALLOC(bp->fw_stats, &bp->fw_stats_mapping, |
| 2106 | bp->fw_stats_data_sz + bp->fw_stats_req_sz); |
| 2107 | |
| 2108 | /* Set shortcuts */ |
| 2109 | bp->fw_stats_req = (struct bnx2x_fw_stats_req *)bp->fw_stats; |
| 2110 | bp->fw_stats_req_mapping = bp->fw_stats_mapping; |
| 2111 | bp->fw_stats_data = (struct bnx2x_fw_stats_data *) |
| 2112 | ((u8 *)bp->fw_stats + bp->fw_stats_req_sz); |
| 2113 | bp->fw_stats_data_mapping = bp->fw_stats_mapping + |
| 2114 | bp->fw_stats_req_sz; |
| 2115 | |
| 2116 | DP(BNX2X_MSG_SP, "statistics request base address set to %x %x", |
| 2117 | U64_HI(bp->fw_stats_req_mapping), |
| 2118 | U64_LO(bp->fw_stats_req_mapping)); |
| 2119 | DP(BNX2X_MSG_SP, "statistics data base address set to %x %x", |
| 2120 | U64_HI(bp->fw_stats_data_mapping), |
| 2121 | U64_LO(bp->fw_stats_data_mapping)); |
| 2122 | return 0; |
| 2123 | |
| 2124 | alloc_mem_err: |
| 2125 | bnx2x_free_fw_stats_mem(bp); |
| 2126 | BNX2X_ERR("Can't allocate FW stats memory\n"); |
| 2127 | return -ENOMEM; |
| 2128 | } |
| 2129 | |
| 2130 | /* send load request to mcp and analyze response */ |
| 2131 | static int bnx2x_nic_load_request(struct bnx2x *bp, u32 *load_code) |
| 2132 | { |
| 2133 | /* init fw_seq */ |
| 2134 | bp->fw_seq = |
| 2135 | (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_mb_header) & |
| 2136 | DRV_MSG_SEQ_NUMBER_MASK); |
| 2137 | BNX2X_DEV_INFO("fw_seq 0x%08x\n", bp->fw_seq); |
| 2138 | |
| 2139 | /* Get current FW pulse sequence */ |
| 2140 | bp->fw_drv_pulse_wr_seq = |
| 2141 | (SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_pulse_mb) & |
| 2142 | DRV_PULSE_SEQ_MASK); |
| 2143 | BNX2X_DEV_INFO("drv_pulse 0x%x\n", bp->fw_drv_pulse_wr_seq); |
| 2144 | |
| 2145 | /* load request */ |
| 2146 | (*load_code) = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ, |
| 2147 | DRV_MSG_CODE_LOAD_REQ_WITH_LFA); |
| 2148 | |
| 2149 | /* if mcp fails to respond we must abort */ |
| 2150 | if (!(*load_code)) { |
| 2151 | BNX2X_ERR("MCP response failure, aborting\n"); |
| 2152 | return -EBUSY; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2153 | } |
| 2154 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2155 | /* If mcp refused (e.g. other port is in diagnostic mode) we |
| 2156 | * must abort |
| 2157 | */ |
| 2158 | if ((*load_code) == FW_MSG_CODE_DRV_LOAD_REFUSED) { |
| 2159 | BNX2X_ERR("MCP refused load request, aborting\n"); |
| 2160 | return -EBUSY; |
| 2161 | } |
| 2162 | return 0; |
| 2163 | } |
| 2164 | |
| 2165 | /* check whether another PF has already loaded FW to chip. In |
| 2166 | * virtualized environments a pf from another VM may have already |
| 2167 | * initialized the device including loading FW |
| 2168 | */ |
| 2169 | int bnx2x_nic_load_analyze_req(struct bnx2x *bp, u32 load_code) |
| 2170 | { |
| 2171 | /* is another pf loaded on this engine? */ |
| 2172 | if (load_code != FW_MSG_CODE_DRV_LOAD_COMMON_CHIP && |
| 2173 | load_code != FW_MSG_CODE_DRV_LOAD_COMMON) { |
| 2174 | /* build my FW version dword */ |
| 2175 | u32 my_fw = (BCM_5710_FW_MAJOR_VERSION) + |
| 2176 | (BCM_5710_FW_MINOR_VERSION << 8) + |
| 2177 | (BCM_5710_FW_REVISION_VERSION << 16) + |
| 2178 | (BCM_5710_FW_ENGINEERING_VERSION << 24); |
| 2179 | |
| 2180 | /* read loaded FW from chip */ |
| 2181 | u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM); |
| 2182 | |
| 2183 | DP(BNX2X_MSG_SP, "loaded fw %x, my fw %x\n", |
| 2184 | loaded_fw, my_fw); |
| 2185 | |
| 2186 | /* abort nic load if version mismatch */ |
| 2187 | if (my_fw != loaded_fw) { |
| 2188 | BNX2X_ERR("bnx2x with FW %x was already loaded which mismatches my %x FW. aborting\n", |
| 2189 | loaded_fw, my_fw); |
| 2190 | return -EBUSY; |
| 2191 | } |
| 2192 | } |
| 2193 | return 0; |
| 2194 | } |
| 2195 | |
| 2196 | /* returns the "mcp load_code" according to global load_count array */ |
| 2197 | static int bnx2x_nic_load_no_mcp(struct bnx2x *bp, int port) |
| 2198 | { |
| 2199 | int path = BP_PATH(bp); |
| 2200 | |
| 2201 | DP(NETIF_MSG_IFUP, "NO MCP - load counts[%d] %d, %d, %d\n", |
| 2202 | path, load_count[path][0], load_count[path][1], |
| 2203 | load_count[path][2]); |
| 2204 | load_count[path][0]++; |
| 2205 | load_count[path][1 + port]++; |
| 2206 | DP(NETIF_MSG_IFUP, "NO MCP - new load counts[%d] %d, %d, %d\n", |
| 2207 | path, load_count[path][0], load_count[path][1], |
| 2208 | load_count[path][2]); |
| 2209 | if (load_count[path][0] == 1) |
| 2210 | return FW_MSG_CODE_DRV_LOAD_COMMON; |
| 2211 | else if (load_count[path][1 + port] == 1) |
| 2212 | return FW_MSG_CODE_DRV_LOAD_PORT; |
| 2213 | else |
| 2214 | return FW_MSG_CODE_DRV_LOAD_FUNCTION; |
| 2215 | } |
| 2216 | |
| 2217 | /* mark PMF if applicable */ |
| 2218 | static void bnx2x_nic_load_pmf(struct bnx2x *bp, u32 load_code) |
| 2219 | { |
| 2220 | if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) || |
| 2221 | (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP) || |
| 2222 | (load_code == FW_MSG_CODE_DRV_LOAD_PORT)) { |
| 2223 | bp->port.pmf = 1; |
| 2224 | /* We need the barrier to ensure the ordering between the |
| 2225 | * writing to bp->port.pmf here and reading it from the |
| 2226 | * bnx2x_periodic_task(). |
| 2227 | */ |
| 2228 | smp_mb(); |
| 2229 | } else { |
| 2230 | bp->port.pmf = 0; |
| 2231 | } |
| 2232 | |
| 2233 | DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf); |
| 2234 | } |
| 2235 | |
| 2236 | static void bnx2x_nic_load_afex_dcc(struct bnx2x *bp, int load_code) |
| 2237 | { |
| 2238 | if (((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) || |
| 2239 | (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP)) && |
| 2240 | (bp->common.shmem2_base)) { |
| 2241 | if (SHMEM2_HAS(bp, dcc_support)) |
| 2242 | SHMEM2_WR(bp, dcc_support, |
| 2243 | (SHMEM_DCC_SUPPORT_DISABLE_ENABLE_PF_TLV | |
| 2244 | SHMEM_DCC_SUPPORT_BANDWIDTH_ALLOCATION_TLV)); |
| 2245 | if (SHMEM2_HAS(bp, afex_driver_support)) |
| 2246 | SHMEM2_WR(bp, afex_driver_support, |
| 2247 | SHMEM_AFEX_SUPPORTED_VERSION_ONE); |
| 2248 | } |
| 2249 | |
| 2250 | /* Set AFEX default VLAN tag to an invalid value */ |
| 2251 | bp->afex_def_vlan_tag = -1; |
Yuval Mintz | 452427b | 2012-03-26 20:47:07 +0000 | [diff] [blame] | 2252 | } |
| 2253 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2254 | /** |
| 2255 | * bnx2x_bz_fp - zero content of the fastpath structure. |
| 2256 | * |
| 2257 | * @bp: driver handle |
| 2258 | * @index: fastpath index to be zeroed |
| 2259 | * |
| 2260 | * Makes sure the contents of the bp->fp[index].napi is kept |
| 2261 | * intact. |
| 2262 | */ |
| 2263 | static void bnx2x_bz_fp(struct bnx2x *bp, int index) |
| 2264 | { |
| 2265 | struct bnx2x_fastpath *fp = &bp->fp[index]; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2266 | struct bnx2x_fp_stats *fp_stats = &bp->fp_stats[index]; |
| 2267 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2268 | int cos; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2269 | struct napi_struct orig_napi = fp->napi; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2270 | struct bnx2x_agg_info *orig_tpa_info = fp->tpa_info; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2271 | /* bzero bnx2x_fastpath contents */ |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2272 | if (bp->stats_init) { |
| 2273 | memset(fp->tpa_info, 0, sizeof(*fp->tpa_info)); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2274 | memset(fp, 0, sizeof(*fp)); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2275 | } else { |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2276 | /* Keep Queue statistics */ |
| 2277 | struct bnx2x_eth_q_stats *tmp_eth_q_stats; |
| 2278 | struct bnx2x_eth_q_stats_old *tmp_eth_q_stats_old; |
| 2279 | |
| 2280 | tmp_eth_q_stats = kzalloc(sizeof(struct bnx2x_eth_q_stats), |
| 2281 | GFP_KERNEL); |
| 2282 | if (tmp_eth_q_stats) |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2283 | memcpy(tmp_eth_q_stats, &fp_stats->eth_q_stats, |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2284 | sizeof(struct bnx2x_eth_q_stats)); |
| 2285 | |
| 2286 | tmp_eth_q_stats_old = |
| 2287 | kzalloc(sizeof(struct bnx2x_eth_q_stats_old), |
| 2288 | GFP_KERNEL); |
| 2289 | if (tmp_eth_q_stats_old) |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2290 | memcpy(tmp_eth_q_stats_old, &fp_stats->eth_q_stats_old, |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2291 | sizeof(struct bnx2x_eth_q_stats_old)); |
| 2292 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2293 | memset(fp->tpa_info, 0, sizeof(*fp->tpa_info)); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2294 | memset(fp, 0, sizeof(*fp)); |
| 2295 | |
| 2296 | if (tmp_eth_q_stats) { |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2297 | memcpy(&fp_stats->eth_q_stats, tmp_eth_q_stats, |
| 2298 | sizeof(struct bnx2x_eth_q_stats)); |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2299 | kfree(tmp_eth_q_stats); |
| 2300 | } |
| 2301 | |
| 2302 | if (tmp_eth_q_stats_old) { |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2303 | memcpy(&fp_stats->eth_q_stats_old, tmp_eth_q_stats_old, |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2304 | sizeof(struct bnx2x_eth_q_stats_old)); |
| 2305 | kfree(tmp_eth_q_stats_old); |
| 2306 | } |
| 2307 | |
| 2308 | } |
| 2309 | |
| 2310 | /* Restore the NAPI object as it has been already initialized */ |
| 2311 | fp->napi = orig_napi; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 2312 | fp->tpa_info = orig_tpa_info; |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2313 | fp->bp = bp; |
| 2314 | fp->index = index; |
| 2315 | if (IS_ETH_FP(fp)) |
| 2316 | fp->max_cos = bp->max_cos; |
| 2317 | else |
| 2318 | /* Special queues support only one CoS */ |
| 2319 | fp->max_cos = 1; |
| 2320 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2321 | /* Init txdata pointers */ |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2322 | if (IS_FCOE_FP(fp)) |
| 2323 | fp->txdata_ptr[0] = &bp->bnx2x_txq[FCOE_TXQ_IDX(bp)]; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2324 | if (IS_ETH_FP(fp)) |
| 2325 | for_each_cos_in_tx_queue(fp, cos) |
| 2326 | fp->txdata_ptr[cos] = &bp->bnx2x_txq[cos * |
| 2327 | BNX2X_NUM_ETH_QUEUES(bp) + index]; |
| 2328 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2329 | /* |
| 2330 | * set the tpa flag for each queue. The tpa flag determines the queue |
| 2331 | * minimal size so it must be set prior to queue memory allocation |
| 2332 | */ |
| 2333 | fp->disable_tpa = !(bp->flags & TPA_ENABLE_FLAG || |
| 2334 | (bp->flags & GRO_ENABLE_FLAG && |
| 2335 | bnx2x_mtu_allows_gro(bp->dev->mtu))); |
| 2336 | if (bp->flags & TPA_ENABLE_FLAG) |
| 2337 | fp->mode = TPA_MODE_LRO; |
| 2338 | else if (bp->flags & GRO_ENABLE_FLAG) |
| 2339 | fp->mode = TPA_MODE_GRO; |
| 2340 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2341 | /* We don't want TPA on an FCoE L2 ring */ |
| 2342 | if (IS_FCOE_FP(fp)) |
| 2343 | fp->disable_tpa = 1; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2344 | } |
| 2345 | |
| 2346 | int bnx2x_load_cnic(struct bnx2x *bp) |
| 2347 | { |
| 2348 | int i, rc, port = BP_PORT(bp); |
| 2349 | |
| 2350 | DP(NETIF_MSG_IFUP, "Starting CNIC-related load\n"); |
| 2351 | |
| 2352 | mutex_init(&bp->cnic_mutex); |
| 2353 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2354 | if (IS_PF(bp)) { |
| 2355 | rc = bnx2x_alloc_mem_cnic(bp); |
| 2356 | if (rc) { |
| 2357 | BNX2X_ERR("Unable to allocate bp memory for cnic\n"); |
| 2358 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); |
| 2359 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2360 | } |
| 2361 | |
| 2362 | rc = bnx2x_alloc_fp_mem_cnic(bp); |
| 2363 | if (rc) { |
| 2364 | BNX2X_ERR("Unable to allocate memory for cnic fps\n"); |
| 2365 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); |
| 2366 | } |
| 2367 | |
| 2368 | /* Update the number of queues with the cnic queues */ |
| 2369 | rc = bnx2x_set_real_num_queues(bp, 1); |
| 2370 | if (rc) { |
| 2371 | BNX2X_ERR("Unable to set real_num_queues including cnic\n"); |
| 2372 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic0); |
| 2373 | } |
| 2374 | |
| 2375 | /* Add all CNIC NAPI objects */ |
| 2376 | bnx2x_add_all_napi_cnic(bp); |
| 2377 | DP(NETIF_MSG_IFUP, "cnic napi added\n"); |
| 2378 | bnx2x_napi_enable_cnic(bp); |
| 2379 | |
| 2380 | rc = bnx2x_init_hw_func_cnic(bp); |
| 2381 | if (rc) |
| 2382 | LOAD_ERROR_EXIT_CNIC(bp, load_error_cnic1); |
| 2383 | |
| 2384 | bnx2x_nic_init_cnic(bp); |
| 2385 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2386 | if (IS_PF(bp)) { |
| 2387 | /* Enable Timer scan */ |
| 2388 | REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 1); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2389 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2390 | /* setup cnic queues */ |
| 2391 | for_each_cnic_queue(bp, i) { |
| 2392 | rc = bnx2x_setup_queue(bp, &bp->fp[i], 0); |
| 2393 | if (rc) { |
| 2394 | BNX2X_ERR("Queue setup failed\n"); |
| 2395 | LOAD_ERROR_EXIT(bp, load_error_cnic2); |
| 2396 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2397 | } |
| 2398 | } |
| 2399 | |
| 2400 | /* Initialize Rx filter. */ |
| 2401 | netif_addr_lock_bh(bp->dev); |
| 2402 | bnx2x_set_rx_mode(bp->dev); |
| 2403 | netif_addr_unlock_bh(bp->dev); |
| 2404 | |
| 2405 | /* re-read iscsi info */ |
| 2406 | bnx2x_get_iscsi_info(bp); |
| 2407 | bnx2x_setup_cnic_irq_info(bp); |
| 2408 | bnx2x_setup_cnic_info(bp); |
| 2409 | bp->cnic_loaded = true; |
| 2410 | if (bp->state == BNX2X_STATE_OPEN) |
| 2411 | bnx2x_cnic_notify(bp, CNIC_CTL_START_CMD); |
| 2412 | |
| 2413 | |
| 2414 | DP(NETIF_MSG_IFUP, "Ending successfully CNIC-related load\n"); |
| 2415 | |
| 2416 | return 0; |
| 2417 | |
| 2418 | #ifndef BNX2X_STOP_ON_ERROR |
| 2419 | load_error_cnic2: |
| 2420 | /* Disable Timer scan */ |
| 2421 | REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 0); |
| 2422 | |
| 2423 | load_error_cnic1: |
| 2424 | bnx2x_napi_disable_cnic(bp); |
| 2425 | /* Update the number of queues without the cnic queues */ |
| 2426 | rc = bnx2x_set_real_num_queues(bp, 0); |
| 2427 | if (rc) |
| 2428 | BNX2X_ERR("Unable to set real_num_queues not including cnic\n"); |
| 2429 | load_error_cnic0: |
| 2430 | BNX2X_ERR("CNIC-related load failed\n"); |
| 2431 | bnx2x_free_fp_mem_cnic(bp); |
| 2432 | bnx2x_free_mem_cnic(bp); |
| 2433 | return rc; |
| 2434 | #endif /* ! BNX2X_STOP_ON_ERROR */ |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 2435 | } |
| 2436 | |
| 2437 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2438 | /* must be called with rtnl_lock */ |
| 2439 | int bnx2x_nic_load(struct bnx2x *bp, int load_mode) |
| 2440 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2441 | int port = BP_PORT(bp); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2442 | int i, rc = 0, load_code = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2443 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2444 | DP(NETIF_MSG_IFUP, "Starting NIC load\n"); |
| 2445 | DP(NETIF_MSG_IFUP, |
| 2446 | "CNIC is %s\n", CNIC_ENABLED(bp) ? "enabled" : "disabled"); |
| 2447 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2448 | #ifdef BNX2X_STOP_ON_ERROR |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2449 | if (unlikely(bp->panic)) { |
| 2450 | BNX2X_ERR("Can't load NIC when there is panic\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2451 | return -EPERM; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2452 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2453 | #endif |
| 2454 | |
| 2455 | bp->state = BNX2X_STATE_OPENING_WAIT4_LOAD; |
| 2456 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 2457 | /* Set the initial link reported state to link down */ |
| 2458 | bnx2x_acquire_phy_lock(bp); |
| 2459 | memset(&bp->last_reported_link, 0, sizeof(bp->last_reported_link)); |
| 2460 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 2461 | &bp->last_reported_link.link_report_flags); |
| 2462 | bnx2x_release_phy_lock(bp); |
| 2463 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2464 | if (IS_PF(bp)) |
| 2465 | /* must be called before memory allocation and HW init */ |
| 2466 | bnx2x_ilt_set_info(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2467 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2468 | /* |
| 2469 | * Zero fastpath structures preserving invariants like napi, which are |
| 2470 | * allocated only once, fp index, max_cos, bp pointer. |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2471 | * Also set fp->disable_tpa and txdata_ptr. |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2472 | */ |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2473 | DP(NETIF_MSG_IFUP, "num queues: %d", bp->num_queues); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2474 | for_each_queue(bp, i) |
| 2475 | bnx2x_bz_fp(bp, i); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2476 | memset(bp->bnx2x_txq, 0, (BNX2X_MAX_RSS_COUNT(bp) * BNX2X_MULTI_TX_COS + |
| 2477 | bp->num_cnic_queues) * |
| 2478 | sizeof(struct bnx2x_fp_txdata)); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2479 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2480 | bp->fcoe_init = false; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2481 | |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 2482 | /* Set the receive queues buffer size */ |
| 2483 | bnx2x_set_rx_buf_size(bp); |
| 2484 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2485 | if (IS_PF(bp)) { |
| 2486 | rc = bnx2x_alloc_mem(bp); |
| 2487 | if (rc) { |
| 2488 | BNX2X_ERR("Unable to allocate bp memory\n"); |
| 2489 | return rc; |
| 2490 | } |
| 2491 | } |
| 2492 | |
| 2493 | /* Allocated memory for FW statistics */ |
| 2494 | if (bnx2x_alloc_fw_stats_mem(bp)) |
| 2495 | LOAD_ERROR_EXIT(bp, load_error0); |
| 2496 | |
| 2497 | /* need to be done after alloc mem, since it's self adjusting to amount |
| 2498 | * of memory available for RSS queues |
| 2499 | */ |
| 2500 | rc = bnx2x_alloc_fp_mem(bp); |
| 2501 | if (rc) { |
| 2502 | BNX2X_ERR("Unable to allocate memory for fps\n"); |
| 2503 | LOAD_ERROR_EXIT(bp, load_error0); |
| 2504 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2505 | |
Ariel Elior | 8d9ac29 | 2013-01-01 05:22:27 +0000 | [diff] [blame] | 2506 | /* request pf to initialize status blocks */ |
| 2507 | if (IS_VF(bp)) { |
| 2508 | rc = bnx2x_vfpf_init(bp); |
| 2509 | if (rc) |
| 2510 | LOAD_ERROR_EXIT(bp, load_error0); |
| 2511 | } |
| 2512 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2513 | /* As long as bnx2x_alloc_mem() may possibly update |
| 2514 | * bp->num_queues, bnx2x_set_real_num_queues() should always |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2515 | * come after it. At this stage cnic queues are not counted. |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2516 | */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2517 | rc = bnx2x_set_real_num_queues(bp, 0); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2518 | if (rc) { |
| 2519 | BNX2X_ERR("Unable to set real_num_queues\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2520 | LOAD_ERROR_EXIT(bp, load_error0); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 2521 | } |
| 2522 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2523 | /* configure multi cos mappings in kernel. |
| 2524 | * this configuration may be overriden by a multi class queue discipline |
| 2525 | * or by a dcbx negotiation result. |
| 2526 | */ |
| 2527 | bnx2x_setup_tc(bp->dev, bp->max_cos); |
| 2528 | |
Merav Sicron | 26614ba | 2012-08-27 03:26:19 +0000 | [diff] [blame] | 2529 | /* Add all NAPI objects */ |
| 2530 | bnx2x_add_all_napi(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2531 | DP(NETIF_MSG_IFUP, "napi added\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2532 | bnx2x_napi_enable(bp); |
| 2533 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2534 | if (IS_PF(bp)) { |
| 2535 | /* set pf load just before approaching the MCP */ |
| 2536 | bnx2x_set_pf_load(bp); |
Ariel Elior | 889b9af | 2012-01-26 06:01:51 +0000 | [diff] [blame] | 2537 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2538 | /* if mcp exists send load request and analyze response */ |
| 2539 | if (!BP_NOMCP(bp)) { |
| 2540 | /* attempt to load pf */ |
| 2541 | rc = bnx2x_nic_load_request(bp, &load_code); |
| 2542 | if (rc) |
| 2543 | LOAD_ERROR_EXIT(bp, load_error1); |
Ariel Elior | 95c6c616 | 2012-01-26 06:01:52 +0000 | [diff] [blame] | 2544 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2545 | /* what did mcp say? */ |
| 2546 | rc = bnx2x_nic_load_analyze_req(bp, load_code); |
| 2547 | if (rc) { |
| 2548 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
Ariel Elior | d1e2d96 | 2012-01-26 06:01:49 +0000 | [diff] [blame] | 2549 | LOAD_ERROR_EXIT(bp, load_error2); |
| 2550 | } |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2551 | } else { |
| 2552 | load_code = bnx2x_nic_load_no_mcp(bp, port); |
Ariel Elior | d1e2d96 | 2012-01-26 06:01:49 +0000 | [diff] [blame] | 2553 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2554 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2555 | /* mark pmf if applicable */ |
| 2556 | bnx2x_nic_load_pmf(bp, load_code); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2557 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2558 | /* Init Function state controlling object */ |
| 2559 | bnx2x__init_func_obj(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2560 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2561 | /* Initialize HW */ |
| 2562 | rc = bnx2x_init_hw(bp, load_code); |
| 2563 | if (rc) { |
| 2564 | BNX2X_ERR("HW init failed, aborting\n"); |
| 2565 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
| 2566 | LOAD_ERROR_EXIT(bp, load_error2); |
| 2567 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2568 | } |
| 2569 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2570 | /* Connect to IRQs */ |
| 2571 | rc = bnx2x_setup_irqs(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2572 | if (rc) { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2573 | BNX2X_ERR("setup irqs failed\n"); |
| 2574 | if (IS_PF(bp)) |
| 2575 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2576 | LOAD_ERROR_EXIT(bp, load_error2); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2577 | } |
| 2578 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2579 | /* Setup NIC internals and enable interrupts */ |
| 2580 | bnx2x_nic_init(bp, load_code); |
| 2581 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2582 | /* Init per-function objects */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2583 | if (IS_PF(bp)) { |
| 2584 | bnx2x_init_bp_objs(bp); |
Ariel Elior | b56e967 | 2013-01-01 05:22:32 +0000 | [diff] [blame] | 2585 | bnx2x_iov_nic_init(bp); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2586 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2587 | /* Set AFEX default VLAN tag to an invalid value */ |
| 2588 | bp->afex_def_vlan_tag = -1; |
| 2589 | bnx2x_nic_load_afex_dcc(bp, load_code); |
| 2590 | bp->state = BNX2X_STATE_OPENING_WAIT4_PORT; |
| 2591 | rc = bnx2x_func_start(bp); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2592 | if (rc) { |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2593 | BNX2X_ERR("Function start failed!\n"); |
| 2594 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
| 2595 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2596 | LOAD_ERROR_EXIT(bp, load_error3); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2597 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2598 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2599 | /* Send LOAD_DONE command to MCP */ |
| 2600 | if (!BP_NOMCP(bp)) { |
| 2601 | load_code = bnx2x_fw_command(bp, |
| 2602 | DRV_MSG_CODE_LOAD_DONE, 0); |
| 2603 | if (!load_code) { |
| 2604 | BNX2X_ERR("MCP response failure, aborting\n"); |
| 2605 | rc = -EBUSY; |
| 2606 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2607 | } |
| 2608 | } |
| 2609 | |
| 2610 | /* setup the leading queue */ |
| 2611 | rc = bnx2x_setup_leading(bp); |
| 2612 | if (rc) { |
| 2613 | BNX2X_ERR("Setup leading failed!\n"); |
| 2614 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2615 | } |
| 2616 | |
| 2617 | /* set up the rest of the queues */ |
| 2618 | for_each_nondefault_eth_queue(bp, i) { |
| 2619 | rc = bnx2x_setup_queue(bp, &bp->fp[i], 0); |
| 2620 | if (rc) { |
| 2621 | BNX2X_ERR("Queue setup failed\n"); |
| 2622 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2623 | } |
| 2624 | } |
| 2625 | |
| 2626 | /* setup rss */ |
| 2627 | rc = bnx2x_init_rss_pf(bp); |
| 2628 | if (rc) { |
| 2629 | BNX2X_ERR("PF RSS init failed\n"); |
| 2630 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2631 | } |
Ariel Elior | 8d9ac29 | 2013-01-01 05:22:27 +0000 | [diff] [blame] | 2632 | |
| 2633 | } else { /* vf */ |
| 2634 | for_each_eth_queue(bp, i) { |
| 2635 | rc = bnx2x_vfpf_setup_q(bp, i); |
| 2636 | if (rc) { |
| 2637 | BNX2X_ERR("Queue setup failed\n"); |
| 2638 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2639 | } |
| 2640 | } |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2641 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2642 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2643 | /* Now when Clients are configured we are ready to work */ |
| 2644 | bp->state = BNX2X_STATE_OPEN; |
| 2645 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2646 | /* Configure a ucast MAC */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2647 | if (IS_PF(bp)) |
| 2648 | rc = bnx2x_set_eth_mac(bp, true); |
Ariel Elior | 8d9ac29 | 2013-01-01 05:22:27 +0000 | [diff] [blame] | 2649 | else /* vf */ |
| 2650 | rc = bnx2x_vfpf_set_mac(bp); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2651 | if (rc) { |
| 2652 | BNX2X_ERR("Setting Ethernet MAC failed\n"); |
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 | } |
Vladislav Zolotarov | 6e30dd4 | 2011-02-06 11:25:41 -0800 | [diff] [blame] | 2655 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2656 | if (IS_PF(bp) && bp->pending_max) { |
Dmitry Kravkov | e3835b9 | 2011-03-06 10:50:44 +0000 | [diff] [blame] | 2657 | bnx2x_update_max_mf_config(bp, bp->pending_max); |
| 2658 | bp->pending_max = 0; |
| 2659 | } |
| 2660 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2661 | if (bp->port.pmf) { |
| 2662 | rc = bnx2x_initial_phy_init(bp, load_mode); |
| 2663 | if (rc) |
| 2664 | LOAD_ERROR_EXIT(bp, load_error3); |
| 2665 | } |
Barak Witkowski | c63da99 | 2012-12-05 23:04:03 +0000 | [diff] [blame] | 2666 | bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_BOOT_FROM_SAN; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2667 | |
| 2668 | /* Start fast path */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2669 | |
| 2670 | /* Initialize Rx filter. */ |
| 2671 | netif_addr_lock_bh(bp->dev); |
| 2672 | bnx2x_set_rx_mode(bp->dev); |
| 2673 | netif_addr_unlock_bh(bp->dev); |
| 2674 | |
| 2675 | /* Start the Tx */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2676 | switch (load_mode) { |
| 2677 | case LOAD_NORMAL: |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2678 | /* Tx queue should be only reenabled */ |
| 2679 | netif_tx_wake_all_queues(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2680 | break; |
| 2681 | |
| 2682 | case LOAD_OPEN: |
| 2683 | netif_tx_start_all_queues(bp->dev); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2684 | smp_mb__after_clear_bit(); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2685 | break; |
| 2686 | |
| 2687 | case LOAD_DIAG: |
Merav Sicron | 8970b2e | 2012-06-19 07:48:22 +0000 | [diff] [blame] | 2688 | case LOAD_LOOPBACK_EXT: |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2689 | bp->state = BNX2X_STATE_DIAG; |
| 2690 | break; |
| 2691 | |
| 2692 | default: |
| 2693 | break; |
| 2694 | } |
| 2695 | |
Dmitry Kravkov | 00253a8 | 2011-11-13 04:34:25 +0000 | [diff] [blame] | 2696 | if (bp->port.pmf) |
Barak Witkowski | 4c70489 | 2012-12-02 04:05:47 +0000 | [diff] [blame] | 2697 | bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_PORT_MASK, 0); |
Dmitry Kravkov | 00253a8 | 2011-11-13 04:34:25 +0000 | [diff] [blame] | 2698 | else |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2699 | bnx2x__link_status_update(bp); |
| 2700 | |
| 2701 | /* start the timer */ |
| 2702 | mod_timer(&bp->timer, jiffies + bp->current_interval); |
| 2703 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2704 | if (CNIC_ENABLED(bp)) |
| 2705 | bnx2x_load_cnic(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2706 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2707 | if (IS_PF(bp) && SHMEM2_HAS(bp, drv_capabilities_flag)) { |
| 2708 | /* mark driver is loaded in shmem2 */ |
Yuval Mintz | 9ce392d | 2012-03-12 08:53:11 +0000 | [diff] [blame] | 2709 | u32 val; |
| 2710 | val = SHMEM2_RD(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)]); |
| 2711 | SHMEM2_WR(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)], |
| 2712 | val | DRV_FLAGS_CAPABILITIES_LOADED_SUPPORTED | |
| 2713 | DRV_FLAGS_CAPABILITIES_LOADED_L2); |
| 2714 | } |
| 2715 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2716 | /* Wait for all pending SP commands to complete */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2717 | if (IS_PF(bp) && !bnx2x_wait_sp_comp(bp, ~0x0UL)) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2718 | BNX2X_ERR("Timeout waiting for SP elements to complete\n"); |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 2719 | bnx2x_nic_unload(bp, UNLOAD_CLOSE, false); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2720 | return -EBUSY; |
| 2721 | } |
Dmitry Kravkov | 6891dd2 | 2010-08-03 21:49:40 +0000 | [diff] [blame] | 2722 | |
Barak Witkowski | 9876879 | 2012-06-19 07:48:31 +0000 | [diff] [blame] | 2723 | /* If PMF - send ADMIN DCBX msg to MFW to initiate DCBX FSM */ |
| 2724 | if (bp->port.pmf && (bp->state != BNX2X_STATE_DIAG)) |
| 2725 | bnx2x_dcbx_init(bp, false); |
| 2726 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2727 | DP(NETIF_MSG_IFUP, "Ending successfully NIC load\n"); |
| 2728 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2729 | return 0; |
| 2730 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2731 | #ifndef BNX2X_STOP_ON_ERROR |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2732 | load_error3: |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2733 | if (IS_PF(bp)) { |
| 2734 | bnx2x_int_disable_sync(bp, 1); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2735 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2736 | /* Clean queueable objects */ |
| 2737 | bnx2x_squeeze_objects(bp); |
| 2738 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2739 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2740 | /* Free SKBs, SGEs, TPA pool and driver internals */ |
| 2741 | bnx2x_free_skbs(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 2742 | for_each_rx_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2743 | bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2744 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2745 | /* Release IRQs */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2746 | bnx2x_free_irq(bp); |
| 2747 | load_error2: |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2748 | if (IS_PF(bp) && !BP_NOMCP(bp)) { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2749 | bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP, 0); |
| 2750 | bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0); |
| 2751 | } |
| 2752 | |
| 2753 | bp->port.pmf = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2754 | load_error1: |
| 2755 | bnx2x_napi_disable(bp); |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2756 | |
Ariel Elior | 889b9af | 2012-01-26 06:01:51 +0000 | [diff] [blame] | 2757 | /* clear pf_load status, as it was already set */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2758 | if (IS_PF(bp)) |
| 2759 | bnx2x_clear_pf_load(bp); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2760 | load_error0: |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2761 | bnx2x_free_fp_mem(bp); |
| 2762 | bnx2x_free_fw_stats_mem(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2763 | bnx2x_free_mem(bp); |
| 2764 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2765 | return rc; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2766 | #endif /* ! BNX2X_STOP_ON_ERROR */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2767 | } |
| 2768 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2769 | static int bnx2x_drain_tx_queues(struct bnx2x *bp) |
| 2770 | { |
| 2771 | u8 rc = 0, cos, i; |
| 2772 | |
| 2773 | /* Wait until tx fastpath tasks complete */ |
| 2774 | for_each_tx_queue(bp, i) { |
| 2775 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
| 2776 | |
| 2777 | for_each_cos_in_tx_queue(fp, cos) |
| 2778 | rc = bnx2x_clean_tx_queue(bp, fp->txdata_ptr[cos]); |
| 2779 | if (rc) |
| 2780 | return rc; |
| 2781 | } |
| 2782 | return 0; |
| 2783 | } |
| 2784 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2785 | /* must be called with rtnl_lock */ |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 2786 | 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] | 2787 | { |
| 2788 | int i; |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2789 | bool global = false; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2790 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2791 | DP(NETIF_MSG_IFUP, "Starting NIC unload\n"); |
| 2792 | |
Yuval Mintz | 9ce392d | 2012-03-12 08:53:11 +0000 | [diff] [blame] | 2793 | /* mark driver is unloaded in shmem2 */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2794 | if (IS_PF(bp) && SHMEM2_HAS(bp, drv_capabilities_flag)) { |
Yuval Mintz | 9ce392d | 2012-03-12 08:53:11 +0000 | [diff] [blame] | 2795 | u32 val; |
| 2796 | val = SHMEM2_RD(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)]); |
| 2797 | SHMEM2_WR(bp, drv_capabilities_flag[BP_FW_MB_IDX(bp)], |
| 2798 | val & ~DRV_FLAGS_CAPABILITIES_LOADED_L2); |
| 2799 | } |
| 2800 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2801 | if (IS_PF(bp) && |
| 2802 | (bp->state == BNX2X_STATE_CLOSED || |
| 2803 | bp->state == BNX2X_STATE_ERROR)) { |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2804 | /* We can get here if the driver has been unloaded |
| 2805 | * during parity error recovery and is either waiting for a |
| 2806 | * leader to complete or for other functions to unload and |
| 2807 | * then ifdown has been issued. In this case we want to |
| 2808 | * unload and let other functions to complete a recovery |
| 2809 | * process. |
| 2810 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2811 | bp->recovery_state = BNX2X_RECOVERY_DONE; |
| 2812 | bp->is_leader = 0; |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2813 | bnx2x_release_leader_lock(bp); |
| 2814 | smp_mb(); |
| 2815 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2816 | DP(NETIF_MSG_IFDOWN, "Releasing a leadership...\n"); |
| 2817 | BNX2X_ERR("Can't unload in closed or error state\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2818 | return -EINVAL; |
| 2819 | } |
| 2820 | |
Vladislav Zolotarov | 87b7ba3 | 2011-08-02 01:35:43 -0700 | [diff] [blame] | 2821 | /* |
| 2822 | * It's important to set the bp->state to the value different from |
| 2823 | * BNX2X_STATE_OPEN and only then stop the Tx. Otherwise bnx2x_tx_int() |
| 2824 | * may restart the Tx from the NAPI context (see bnx2x_tx_int()). |
| 2825 | */ |
| 2826 | bp->state = BNX2X_STATE_CLOSING_WAIT4_HALT; |
| 2827 | smp_mb(); |
| 2828 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2829 | if (CNIC_LOADED(bp)) |
| 2830 | bnx2x_cnic_notify(bp, CNIC_CTL_STOP_CMD); |
| 2831 | |
Vladislav Zolotarov | 9505ee3 | 2011-07-19 01:39:41 +0000 | [diff] [blame] | 2832 | /* Stop Tx */ |
| 2833 | bnx2x_tx_disable(bp); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 2834 | netdev_reset_tc(bp->dev); |
Vladislav Zolotarov | 9505ee3 | 2011-07-19 01:39:41 +0000 | [diff] [blame] | 2835 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2836 | bp->rx_mode = BNX2X_RX_MODE_NONE; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2837 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2838 | del_timer_sync(&bp->timer); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2839 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2840 | if (IS_PF(bp)) { |
| 2841 | /* Set ALWAYS_ALIVE bit in shmem */ |
| 2842 | bp->fw_drv_pulse_wr_seq |= DRV_PULSE_ALWAYS_ALIVE; |
| 2843 | bnx2x_drv_pulse(bp); |
| 2844 | bnx2x_stats_handle(bp, STATS_EVENT_STOP); |
| 2845 | bnx2x_save_statistics(bp); |
| 2846 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2847 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2848 | /* wait till consumers catch up with producers in all queues */ |
| 2849 | bnx2x_drain_tx_queues(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2850 | |
Ariel Elior | 9b176b6 | 2013-01-01 05:22:28 +0000 | [diff] [blame] | 2851 | /* if VF indicate to PF this function is going down (PF will delete sp |
| 2852 | * elements and clear initializations |
| 2853 | */ |
| 2854 | if (IS_VF(bp)) |
| 2855 | bnx2x_vfpf_close_vf(bp); |
| 2856 | else if (unload_mode != UNLOAD_RECOVERY) |
| 2857 | /* if this is a normal/close unload need to clean up chip*/ |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 2858 | bnx2x_chip_cleanup(bp, unload_mode, keep_link); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2859 | else { |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2860 | /* Send the UNLOAD_REQUEST to the MCP */ |
| 2861 | bnx2x_send_unload_req(bp, unload_mode); |
| 2862 | |
| 2863 | /* |
| 2864 | * Prevent transactions to host from the functions on the |
| 2865 | * engine that doesn't reset global blocks in case of global |
| 2866 | * attention once gloabl blocks are reset and gates are opened |
| 2867 | * (the engine which leader will perform the recovery |
| 2868 | * last). |
| 2869 | */ |
| 2870 | if (!CHIP_IS_E1x(bp)) |
| 2871 | bnx2x_pf_disable(bp); |
| 2872 | |
| 2873 | /* Disable HW interrupts, NAPI */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2874 | bnx2x_netif_stop(bp, 1); |
Merav Sicron | 26614ba | 2012-08-27 03:26:19 +0000 | [diff] [blame] | 2875 | /* Delete all NAPI objects */ |
| 2876 | bnx2x_del_all_napi(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2877 | if (CNIC_LOADED(bp)) |
| 2878 | bnx2x_del_all_napi_cnic(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2879 | /* Release IRQs */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2880 | bnx2x_free_irq(bp); |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2881 | |
| 2882 | /* Report UNLOAD_DONE to MCP */ |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 2883 | bnx2x_send_unload_done(bp, false); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2884 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2885 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2886 | /* |
| 2887 | * At this stage no more interrupts will arrive so we may safly clean |
| 2888 | * the queueable objects here in case they failed to get cleaned so far. |
| 2889 | */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2890 | if (IS_PF(bp)) |
| 2891 | bnx2x_squeeze_objects(bp); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2892 | |
Vladislav Zolotarov | 7961689 | 2011-07-21 07:58:54 +0000 | [diff] [blame] | 2893 | /* There should be no more pending SP commands at this stage */ |
| 2894 | bp->sp_state = 0; |
| 2895 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2896 | bp->port.pmf = 0; |
| 2897 | |
| 2898 | /* Free SKBs, SGEs, TPA pool and driver internals */ |
| 2899 | bnx2x_free_skbs(bp); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2900 | if (CNIC_LOADED(bp)) |
| 2901 | bnx2x_free_skbs_cnic(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 2902 | for_each_rx_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2903 | bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2904 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2905 | bnx2x_free_fp_mem(bp); |
| 2906 | if (CNIC_LOADED(bp)) |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2907 | bnx2x_free_fp_mem_cnic(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2908 | |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2909 | if (IS_PF(bp)) { |
| 2910 | bnx2x_free_mem(bp); |
| 2911 | if (CNIC_LOADED(bp)) |
| 2912 | bnx2x_free_mem_cnic(bp); |
| 2913 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2914 | bp->state = BNX2X_STATE_CLOSED; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2915 | bp->cnic_loaded = false; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2916 | |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2917 | /* Check if there are pending parity attentions. If there are - set |
| 2918 | * RECOVERY_IN_PROGRESS. |
| 2919 | */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2920 | if (IS_PF(bp) && bnx2x_chk_parity_attn(bp, &global, false)) { |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2921 | bnx2x_set_reset_in_progress(bp); |
| 2922 | |
| 2923 | /* Set RESET_IS_GLOBAL if needed */ |
| 2924 | if (global) |
| 2925 | bnx2x_set_reset_global(bp); |
| 2926 | } |
| 2927 | |
| 2928 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2929 | /* The last driver must disable a "close the gate" if there is no |
| 2930 | * parity attention or "process kill" pending. |
| 2931 | */ |
Ariel Elior | ad5afc8 | 2013-01-01 05:22:26 +0000 | [diff] [blame] | 2932 | if (IS_PF(bp) && |
| 2933 | !bnx2x_clear_pf_load(bp) && |
| 2934 | bnx2x_reset_is_done(bp, BP_PATH(bp))) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2935 | bnx2x_disable_close_the_gate(bp); |
| 2936 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 2937 | DP(NETIF_MSG_IFUP, "Ending NIC unload\n"); |
| 2938 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2939 | return 0; |
| 2940 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2941 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2942 | int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state) |
| 2943 | { |
| 2944 | u16 pmcsr; |
| 2945 | |
Dmitry Kravkov | adf5f6a | 2010-10-17 23:10:02 +0000 | [diff] [blame] | 2946 | /* If there is no power capability, silently succeed */ |
| 2947 | if (!bp->pm_cap) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2948 | BNX2X_DEV_INFO("No power capability. Breaking.\n"); |
Dmitry Kravkov | adf5f6a | 2010-10-17 23:10:02 +0000 | [diff] [blame] | 2949 | return 0; |
| 2950 | } |
| 2951 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2952 | pci_read_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, &pmcsr); |
| 2953 | |
| 2954 | switch (state) { |
| 2955 | case PCI_D0: |
| 2956 | pci_write_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, |
| 2957 | ((pmcsr & ~PCI_PM_CTRL_STATE_MASK) | |
| 2958 | PCI_PM_CTRL_PME_STATUS)); |
| 2959 | |
| 2960 | if (pmcsr & PCI_PM_CTRL_STATE_MASK) |
| 2961 | /* delay required during transition out of D3hot */ |
| 2962 | msleep(20); |
| 2963 | break; |
| 2964 | |
| 2965 | case PCI_D3hot: |
| 2966 | /* If there are other clients above don't |
| 2967 | shut down the power */ |
| 2968 | if (atomic_read(&bp->pdev->enable_cnt) != 1) |
| 2969 | return 0; |
| 2970 | /* Don't shut down the power for emulation and FPGA */ |
| 2971 | if (CHIP_REV_IS_SLOW(bp)) |
| 2972 | return 0; |
| 2973 | |
| 2974 | pmcsr &= ~PCI_PM_CTRL_STATE_MASK; |
| 2975 | pmcsr |= 3; |
| 2976 | |
| 2977 | if (bp->wol) |
| 2978 | pmcsr |= PCI_PM_CTRL_PME_ENABLE; |
| 2979 | |
| 2980 | pci_write_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, |
| 2981 | pmcsr); |
| 2982 | |
| 2983 | /* No more memory access after this point until |
| 2984 | * device is brought back to D0. |
| 2985 | */ |
| 2986 | break; |
| 2987 | |
| 2988 | default: |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 2989 | dev_err(&bp->pdev->dev, "Can't support state = %d\n", state); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2990 | return -EINVAL; |
| 2991 | } |
| 2992 | return 0; |
| 2993 | } |
| 2994 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2995 | /* |
| 2996 | * net_device service functions |
| 2997 | */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2998 | int bnx2x_poll(struct napi_struct *napi, int budget) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2999 | { |
| 3000 | int work_done = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3001 | u8 cos; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3002 | struct bnx2x_fastpath *fp = container_of(napi, struct bnx2x_fastpath, |
| 3003 | napi); |
| 3004 | struct bnx2x *bp = fp->bp; |
| 3005 | |
| 3006 | while (1) { |
| 3007 | #ifdef BNX2X_STOP_ON_ERROR |
| 3008 | if (unlikely(bp->panic)) { |
| 3009 | napi_complete(napi); |
| 3010 | return 0; |
| 3011 | } |
| 3012 | #endif |
| 3013 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3014 | for_each_cos_in_tx_queue(fp, cos) |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3015 | if (bnx2x_tx_queue_has_work(fp->txdata_ptr[cos])) |
| 3016 | bnx2x_tx_int(bp, fp->txdata_ptr[cos]); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3017 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3018 | |
| 3019 | if (bnx2x_has_rx_work(fp)) { |
| 3020 | work_done += bnx2x_rx_int(fp, budget - work_done); |
| 3021 | |
| 3022 | /* must not complete if we consumed full budget */ |
| 3023 | if (work_done >= budget) |
| 3024 | break; |
| 3025 | } |
| 3026 | |
| 3027 | /* Fall out from the NAPI loop if needed */ |
| 3028 | if (!(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) { |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3029 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 3030 | /* No need to update SB for FCoE L2 ring as long as |
| 3031 | * it's connected to the default SB and the SB |
| 3032 | * has been updated when NAPI was scheduled. |
| 3033 | */ |
| 3034 | if (IS_FCOE_FP(fp)) { |
| 3035 | napi_complete(napi); |
| 3036 | break; |
| 3037 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3038 | bnx2x_update_fpsb_idx(fp); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3039 | /* bnx2x_has_rx_work() reads the status block, |
| 3040 | * thus we need to ensure that status block indices |
| 3041 | * have been actually read (bnx2x_update_fpsb_idx) |
| 3042 | * prior to this check (bnx2x_has_rx_work) so that |
| 3043 | * we won't write the "newer" value of the status block |
| 3044 | * to IGU (if there was a DMA right after |
| 3045 | * bnx2x_has_rx_work and if there is no rmb, the memory |
| 3046 | * reading (bnx2x_update_fpsb_idx) may be postponed |
| 3047 | * to right before bnx2x_ack_sb). In this case there |
| 3048 | * will never be another interrupt until there is |
| 3049 | * another update of the status block, while there |
| 3050 | * is still unhandled work. |
| 3051 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3052 | rmb(); |
| 3053 | |
| 3054 | if (!(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) { |
| 3055 | napi_complete(napi); |
| 3056 | /* Re-enable interrupts */ |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3057 | DP(NETIF_MSG_RX_STATUS, |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3058 | "Update index to %d\n", fp->fp_hc_idx); |
| 3059 | bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID, |
| 3060 | le16_to_cpu(fp->fp_hc_idx), |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3061 | IGU_INT_ENABLE, 1); |
| 3062 | break; |
| 3063 | } |
| 3064 | } |
| 3065 | } |
| 3066 | |
| 3067 | return work_done; |
| 3068 | } |
| 3069 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3070 | /* we split the first BD into headers and data BDs |
| 3071 | * to ease the pain of our fellow microcode engineers |
| 3072 | * we use one mapping for both BDs |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3073 | */ |
| 3074 | static noinline u16 bnx2x_tx_split(struct bnx2x *bp, |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3075 | struct bnx2x_fp_txdata *txdata, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3076 | struct sw_tx_bd *tx_buf, |
| 3077 | struct eth_tx_start_bd **tx_bd, u16 hlen, |
| 3078 | u16 bd_prod, int nbd) |
| 3079 | { |
| 3080 | struct eth_tx_start_bd *h_tx_bd = *tx_bd; |
| 3081 | struct eth_tx_bd *d_tx_bd; |
| 3082 | dma_addr_t mapping; |
| 3083 | int old_len = le16_to_cpu(h_tx_bd->nbytes); |
| 3084 | |
| 3085 | /* first fix first BD */ |
| 3086 | h_tx_bd->nbd = cpu_to_le16(nbd); |
| 3087 | h_tx_bd->nbytes = cpu_to_le16(hlen); |
| 3088 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3089 | DP(NETIF_MSG_TX_QUEUED, "TSO split header size is %d (%x:%x) nbd %d\n", |
| 3090 | h_tx_bd->nbytes, h_tx_bd->addr_hi, h_tx_bd->addr_lo, h_tx_bd->nbd); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3091 | |
| 3092 | /* now get a new data BD |
| 3093 | * (after the pbd) and fill it */ |
| 3094 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3095 | d_tx_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3096 | |
| 3097 | mapping = HILO_U64(le32_to_cpu(h_tx_bd->addr_hi), |
| 3098 | le32_to_cpu(h_tx_bd->addr_lo)) + hlen; |
| 3099 | |
| 3100 | d_tx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 3101 | d_tx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 3102 | d_tx_bd->nbytes = cpu_to_le16(old_len - hlen); |
| 3103 | |
| 3104 | /* this marks the BD as one that has no individual mapping */ |
| 3105 | tx_buf->flags |= BNX2X_TSO_SPLIT_BD; |
| 3106 | |
| 3107 | DP(NETIF_MSG_TX_QUEUED, |
| 3108 | "TSO split data size is %d (%x:%x)\n", |
| 3109 | d_tx_bd->nbytes, d_tx_bd->addr_hi, d_tx_bd->addr_lo); |
| 3110 | |
| 3111 | /* update tx_bd */ |
| 3112 | *tx_bd = (struct eth_tx_start_bd *)d_tx_bd; |
| 3113 | |
| 3114 | return bd_prod; |
| 3115 | } |
| 3116 | |
| 3117 | static inline u16 bnx2x_csum_fix(unsigned char *t_header, u16 csum, s8 fix) |
| 3118 | { |
| 3119 | if (fix > 0) |
| 3120 | csum = (u16) ~csum_fold(csum_sub(csum, |
| 3121 | csum_partial(t_header - fix, fix, 0))); |
| 3122 | |
| 3123 | else if (fix < 0) |
| 3124 | csum = (u16) ~csum_fold(csum_add(csum, |
| 3125 | csum_partial(t_header, -fix, 0))); |
| 3126 | |
| 3127 | return swab16(csum); |
| 3128 | } |
| 3129 | |
| 3130 | static inline u32 bnx2x_xmit_type(struct bnx2x *bp, struct sk_buff *skb) |
| 3131 | { |
| 3132 | u32 rc; |
| 3133 | |
| 3134 | if (skb->ip_summed != CHECKSUM_PARTIAL) |
| 3135 | rc = XMIT_PLAIN; |
| 3136 | |
| 3137 | else { |
Hao Zheng | d0d9d8e | 2010-11-11 13:47:58 +0000 | [diff] [blame] | 3138 | if (vlan_get_protocol(skb) == htons(ETH_P_IPV6)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3139 | rc = XMIT_CSUM_V6; |
| 3140 | if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) |
| 3141 | rc |= XMIT_CSUM_TCP; |
| 3142 | |
| 3143 | } else { |
| 3144 | rc = XMIT_CSUM_V4; |
| 3145 | if (ip_hdr(skb)->protocol == IPPROTO_TCP) |
| 3146 | rc |= XMIT_CSUM_TCP; |
| 3147 | } |
| 3148 | } |
| 3149 | |
Vladislav Zolotarov | 5892b9e | 2010-11-28 00:23:35 +0000 | [diff] [blame] | 3150 | if (skb_is_gso_v6(skb)) |
| 3151 | rc |= XMIT_GSO_V6 | XMIT_CSUM_TCP | XMIT_CSUM_V6; |
| 3152 | else if (skb_is_gso(skb)) |
| 3153 | rc |= XMIT_GSO_V4 | XMIT_CSUM_V4 | XMIT_CSUM_TCP; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3154 | |
| 3155 | return rc; |
| 3156 | } |
| 3157 | |
| 3158 | #if (MAX_SKB_FRAGS >= MAX_FETCH_BD - 3) |
| 3159 | /* check if packet requires linearization (packet is too fragmented) |
| 3160 | no need to check fragmentation if page size > 8K (there will be no |
| 3161 | violation to FW restrictions) */ |
| 3162 | static int bnx2x_pkt_req_lin(struct bnx2x *bp, struct sk_buff *skb, |
| 3163 | u32 xmit_type) |
| 3164 | { |
| 3165 | int to_copy = 0; |
| 3166 | int hlen = 0; |
| 3167 | int first_bd_sz = 0; |
| 3168 | |
| 3169 | /* 3 = 1 (for linear data BD) + 2 (for PBD and last BD) */ |
| 3170 | if (skb_shinfo(skb)->nr_frags >= (MAX_FETCH_BD - 3)) { |
| 3171 | |
| 3172 | if (xmit_type & XMIT_GSO) { |
| 3173 | unsigned short lso_mss = skb_shinfo(skb)->gso_size; |
| 3174 | /* Check if LSO packet needs to be copied: |
| 3175 | 3 = 1 (for headers BD) + 2 (for PBD and last BD) */ |
| 3176 | int wnd_size = MAX_FETCH_BD - 3; |
| 3177 | /* Number of windows to check */ |
| 3178 | int num_wnds = skb_shinfo(skb)->nr_frags - wnd_size; |
| 3179 | int wnd_idx = 0; |
| 3180 | int frag_idx = 0; |
| 3181 | u32 wnd_sum = 0; |
| 3182 | |
| 3183 | /* Headers length */ |
| 3184 | hlen = (int)(skb_transport_header(skb) - skb->data) + |
| 3185 | tcp_hdrlen(skb); |
| 3186 | |
| 3187 | /* Amount of data (w/o headers) on linear part of SKB*/ |
| 3188 | first_bd_sz = skb_headlen(skb) - hlen; |
| 3189 | |
| 3190 | wnd_sum = first_bd_sz; |
| 3191 | |
| 3192 | /* Calculate the first sum - it's special */ |
| 3193 | for (frag_idx = 0; frag_idx < wnd_size - 1; frag_idx++) |
| 3194 | wnd_sum += |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3195 | skb_frag_size(&skb_shinfo(skb)->frags[frag_idx]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3196 | |
| 3197 | /* If there was data on linear skb data - check it */ |
| 3198 | if (first_bd_sz > 0) { |
| 3199 | if (unlikely(wnd_sum < lso_mss)) { |
| 3200 | to_copy = 1; |
| 3201 | goto exit_lbl; |
| 3202 | } |
| 3203 | |
| 3204 | wnd_sum -= first_bd_sz; |
| 3205 | } |
| 3206 | |
| 3207 | /* Others are easier: run through the frag list and |
| 3208 | check all windows */ |
| 3209 | for (wnd_idx = 0; wnd_idx <= num_wnds; wnd_idx++) { |
| 3210 | wnd_sum += |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3211 | skb_frag_size(&skb_shinfo(skb)->frags[wnd_idx + wnd_size - 1]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3212 | |
| 3213 | if (unlikely(wnd_sum < lso_mss)) { |
| 3214 | to_copy = 1; |
| 3215 | break; |
| 3216 | } |
| 3217 | wnd_sum -= |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3218 | skb_frag_size(&skb_shinfo(skb)->frags[wnd_idx]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3219 | } |
| 3220 | } else { |
| 3221 | /* in non-LSO too fragmented packet should always |
| 3222 | be linearized */ |
| 3223 | to_copy = 1; |
| 3224 | } |
| 3225 | } |
| 3226 | |
| 3227 | exit_lbl: |
| 3228 | if (unlikely(to_copy)) |
| 3229 | DP(NETIF_MSG_TX_QUEUED, |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3230 | "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] | 3231 | (xmit_type & XMIT_GSO) ? "LSO" : "non-LSO", |
| 3232 | skb_shinfo(skb)->nr_frags, hlen, first_bd_sz); |
| 3233 | |
| 3234 | return to_copy; |
| 3235 | } |
| 3236 | #endif |
| 3237 | |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3238 | static inline void bnx2x_set_pbd_gso_e2(struct sk_buff *skb, u32 *parsing_data, |
| 3239 | u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3240 | { |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3241 | *parsing_data |= (skb_shinfo(skb)->gso_size << |
| 3242 | ETH_TX_PARSE_BD_E2_LSO_MSS_SHIFT) & |
| 3243 | ETH_TX_PARSE_BD_E2_LSO_MSS; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3244 | if ((xmit_type & XMIT_GSO_V6) && |
| 3245 | (ipv6_hdr(skb)->nexthdr == NEXTHDR_IPV6)) |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3246 | *parsing_data |= ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3247 | } |
| 3248 | |
| 3249 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3250 | * bnx2x_set_pbd_gso - update PBD in GSO case. |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3251 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3252 | * @skb: packet skb |
| 3253 | * @pbd: parse BD |
| 3254 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3255 | */ |
| 3256 | static inline void bnx2x_set_pbd_gso(struct sk_buff *skb, |
| 3257 | struct eth_tx_parse_bd_e1x *pbd, |
| 3258 | u32 xmit_type) |
| 3259 | { |
| 3260 | pbd->lso_mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
| 3261 | pbd->tcp_send_seq = swab32(tcp_hdr(skb)->seq); |
| 3262 | pbd->tcp_flags = pbd_tcp_flags(skb); |
| 3263 | |
| 3264 | if (xmit_type & XMIT_GSO_V4) { |
| 3265 | pbd->ip_id = swab16(ip_hdr(skb)->id); |
| 3266 | pbd->tcp_pseudo_csum = |
| 3267 | swab16(~csum_tcpudp_magic(ip_hdr(skb)->saddr, |
| 3268 | ip_hdr(skb)->daddr, |
| 3269 | 0, IPPROTO_TCP, 0)); |
| 3270 | |
| 3271 | } else |
| 3272 | pbd->tcp_pseudo_csum = |
| 3273 | swab16(~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, |
| 3274 | &ipv6_hdr(skb)->daddr, |
| 3275 | 0, IPPROTO_TCP, 0)); |
| 3276 | |
| 3277 | pbd->global_data |= ETH_TX_PARSE_BD_E1X_PSEUDO_CS_WITHOUT_LEN; |
| 3278 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3279 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3280 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3281 | * 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] | 3282 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3283 | * @bp: driver handle |
| 3284 | * @skb: packet skb |
| 3285 | * @parsing_data: data to be updated |
| 3286 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3287 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3288 | * 57712 related |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3289 | */ |
| 3290 | static inline u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb, |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3291 | u32 *parsing_data, u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3292 | { |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3293 | *parsing_data |= |
| 3294 | ((((u8 *)skb_transport_header(skb) - skb->data) >> 1) << |
| 3295 | ETH_TX_PARSE_BD_E2_TCP_HDR_START_OFFSET_W_SHIFT) & |
| 3296 | ETH_TX_PARSE_BD_E2_TCP_HDR_START_OFFSET_W; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3297 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3298 | if (xmit_type & XMIT_CSUM_TCP) { |
| 3299 | *parsing_data |= ((tcp_hdrlen(skb) / 4) << |
| 3300 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) & |
| 3301 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3302 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3303 | return skb_transport_header(skb) + tcp_hdrlen(skb) - skb->data; |
| 3304 | } else |
| 3305 | /* We support checksum offload for TCP and UDP only. |
| 3306 | * No need to pass the UDP header length - it's a constant. |
| 3307 | */ |
| 3308 | return skb_transport_header(skb) + |
| 3309 | sizeof(struct udphdr) - skb->data; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3310 | } |
| 3311 | |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3312 | static inline void bnx2x_set_sbd_csum(struct bnx2x *bp, struct sk_buff *skb, |
| 3313 | struct eth_tx_start_bd *tx_start_bd, u32 xmit_type) |
| 3314 | { |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3315 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_L4_CSUM; |
| 3316 | |
| 3317 | if (xmit_type & XMIT_CSUM_V4) |
| 3318 | tx_start_bd->bd_flags.as_bitfield |= |
| 3319 | ETH_TX_BD_FLAGS_IP_CSUM; |
| 3320 | else |
| 3321 | tx_start_bd->bd_flags.as_bitfield |= |
| 3322 | ETH_TX_BD_FLAGS_IPV6; |
| 3323 | |
| 3324 | if (!(xmit_type & XMIT_CSUM_TCP)) |
| 3325 | 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] | 3326 | } |
| 3327 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3328 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3329 | * bnx2x_set_pbd_csum - update PBD with checksum and return header length |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3330 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 3331 | * @bp: driver handle |
| 3332 | * @skb: packet skb |
| 3333 | * @pbd: parse BD to be updated |
| 3334 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3335 | */ |
| 3336 | static inline u8 bnx2x_set_pbd_csum(struct bnx2x *bp, struct sk_buff *skb, |
| 3337 | struct eth_tx_parse_bd_e1x *pbd, |
| 3338 | u32 xmit_type) |
| 3339 | { |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3340 | u8 hlen = (skb_network_header(skb) - skb->data) >> 1; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3341 | |
| 3342 | /* for now NS flag is not used in Linux */ |
| 3343 | pbd->global_data = |
| 3344 | (hlen | ((skb->protocol == cpu_to_be16(ETH_P_8021Q)) << |
| 3345 | ETH_TX_PARSE_BD_E1X_LLC_SNAP_EN_SHIFT)); |
| 3346 | |
| 3347 | pbd->ip_hlen_w = (skb_transport_header(skb) - |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3348 | skb_network_header(skb)) >> 1; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3349 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 3350 | hlen += pbd->ip_hlen_w; |
| 3351 | |
| 3352 | /* We support checksum offload for TCP and UDP only */ |
| 3353 | if (xmit_type & XMIT_CSUM_TCP) |
| 3354 | hlen += tcp_hdrlen(skb) / 2; |
| 3355 | else |
| 3356 | hlen += sizeof(struct udphdr) / 2; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3357 | |
| 3358 | pbd->total_hlen_w = cpu_to_le16(hlen); |
| 3359 | hlen = hlen*2; |
| 3360 | |
| 3361 | if (xmit_type & XMIT_CSUM_TCP) { |
| 3362 | pbd->tcp_pseudo_csum = swab16(tcp_hdr(skb)->check); |
| 3363 | |
| 3364 | } else { |
| 3365 | s8 fix = SKB_CS_OFF(skb); /* signed! */ |
| 3366 | |
| 3367 | DP(NETIF_MSG_TX_QUEUED, |
| 3368 | "hlen %d fix %d csum before fix %x\n", |
| 3369 | le16_to_cpu(pbd->total_hlen_w), fix, SKB_CS(skb)); |
| 3370 | |
| 3371 | /* HW bug: fixup the CSUM */ |
| 3372 | pbd->tcp_pseudo_csum = |
| 3373 | bnx2x_csum_fix(skb_transport_header(skb), |
| 3374 | SKB_CS(skb), fix); |
| 3375 | |
| 3376 | DP(NETIF_MSG_TX_QUEUED, "csum after fix %x\n", |
| 3377 | pbd->tcp_pseudo_csum); |
| 3378 | } |
| 3379 | |
| 3380 | return hlen; |
| 3381 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3382 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3383 | /* called with netif_tx_lock |
| 3384 | * bnx2x_tx_int() runs without netif_tx_lock unless it needs to call |
| 3385 | * netif_wake_queue() |
| 3386 | */ |
| 3387 | netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 3388 | { |
| 3389 | struct bnx2x *bp = netdev_priv(dev); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3390 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3391 | struct netdev_queue *txq; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3392 | struct bnx2x_fp_txdata *txdata; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3393 | struct sw_tx_bd *tx_buf; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3394 | struct eth_tx_start_bd *tx_start_bd, *first_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3395 | struct eth_tx_bd *tx_data_bd, *total_pkt_bd = NULL; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3396 | struct eth_tx_parse_bd_e1x *pbd_e1x = NULL; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3397 | struct eth_tx_parse_bd_e2 *pbd_e2 = NULL; |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3398 | u32 pbd_e2_parsing_data = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3399 | u16 pkt_prod, bd_prod; |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3400 | int nbd, txq_index; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3401 | dma_addr_t mapping; |
| 3402 | u32 xmit_type = bnx2x_xmit_type(bp, skb); |
| 3403 | int i; |
| 3404 | u8 hlen = 0; |
| 3405 | __le16 pkt_size = 0; |
| 3406 | struct ethhdr *eth; |
| 3407 | u8 mac_type = UNICAST_ADDRESS; |
| 3408 | |
| 3409 | #ifdef BNX2X_STOP_ON_ERROR |
| 3410 | if (unlikely(bp->panic)) |
| 3411 | return NETDEV_TX_BUSY; |
| 3412 | #endif |
| 3413 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3414 | txq_index = skb_get_queue_mapping(skb); |
| 3415 | txq = netdev_get_tx_queue(dev, txq_index); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3416 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3417 | 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] | 3418 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3419 | txdata = &bp->bnx2x_txq[txq_index]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3420 | |
| 3421 | /* enable this debug print to view the transmission queue being used |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3422 | 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] | 3423 | txq_index, fp_index, txdata_index); */ |
| 3424 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3425 | /* enable this debug print to view the tranmission details |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3426 | DP(NETIF_MSG_TX_QUEUED, |
| 3427 | "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] | 3428 | txdata->cid, fp_index, txdata_index, txdata, fp); */ |
| 3429 | |
| 3430 | if (unlikely(bnx2x_tx_avail(bp, txdata) < |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 3431 | skb_shinfo(skb)->nr_frags + |
| 3432 | BDS_PER_TX_PKT + |
| 3433 | NEXT_CNT_PER_TX_PKT(MAX_BDS_PER_TX_PKT))) { |
Dmitry Kravkov | 2384d6a | 2012-10-16 01:28:27 +0000 | [diff] [blame] | 3434 | /* Handle special storage cases separately */ |
Dmitry Kravkov | c96bdc0 | 2012-12-02 04:05:48 +0000 | [diff] [blame] | 3435 | if (txdata->tx_ring_size == 0) { |
| 3436 | struct bnx2x_eth_q_stats *q_stats = |
| 3437 | bnx2x_fp_qstats(bp, txdata->parent_fp); |
| 3438 | q_stats->driver_filtered_tx_pkt++; |
| 3439 | dev_kfree_skb(skb); |
| 3440 | return NETDEV_TX_OK; |
| 3441 | } |
Dmitry Kravkov | 2384d6a | 2012-10-16 01:28:27 +0000 | [diff] [blame] | 3442 | bnx2x_fp_qstats(bp, txdata->parent_fp)->driver_xoff++; |
| 3443 | netif_tx_stop_queue(txq); |
Dmitry Kravkov | c96bdc0 | 2012-12-02 04:05:48 +0000 | [diff] [blame] | 3444 | BNX2X_ERR("BUG! Tx ring full when queue awake!\n"); |
Dmitry Kravkov | 2384d6a | 2012-10-16 01:28:27 +0000 | [diff] [blame] | 3445 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3446 | return NETDEV_TX_BUSY; |
| 3447 | } |
| 3448 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3449 | DP(NETIF_MSG_TX_QUEUED, |
| 3450 | "queue[%d]: SKB: summed %x protocol %x protocol(%x,%x) gso type %x xmit_type %x\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3451 | txq_index, skb->ip_summed, skb->protocol, ipv6_hdr(skb)->nexthdr, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3452 | ip_hdr(skb)->protocol, skb_shinfo(skb)->gso_type, xmit_type); |
| 3453 | |
| 3454 | eth = (struct ethhdr *)skb->data; |
| 3455 | |
| 3456 | /* set flag according to packet type (UNICAST_ADDRESS is default)*/ |
| 3457 | if (unlikely(is_multicast_ether_addr(eth->h_dest))) { |
| 3458 | if (is_broadcast_ether_addr(eth->h_dest)) |
| 3459 | mac_type = BROADCAST_ADDRESS; |
| 3460 | else |
| 3461 | mac_type = MULTICAST_ADDRESS; |
| 3462 | } |
| 3463 | |
| 3464 | #if (MAX_SKB_FRAGS >= MAX_FETCH_BD - 3) |
| 3465 | /* First, check if we need to linearize the skb (due to FW |
| 3466 | restrictions). No need to check fragmentation if page size > 8K |
| 3467 | (there will be no violation to FW restrictions) */ |
| 3468 | if (bnx2x_pkt_req_lin(bp, skb, xmit_type)) { |
| 3469 | /* Statistics of linearization */ |
| 3470 | bp->lin_cnt++; |
| 3471 | if (skb_linearize(skb) != 0) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3472 | DP(NETIF_MSG_TX_QUEUED, |
| 3473 | "SKB linearization failed - silently dropping this SKB\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3474 | dev_kfree_skb_any(skb); |
| 3475 | return NETDEV_TX_OK; |
| 3476 | } |
| 3477 | } |
| 3478 | #endif |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3479 | /* Map skb linear data for DMA */ |
| 3480 | mapping = dma_map_single(&bp->pdev->dev, skb->data, |
| 3481 | skb_headlen(skb), DMA_TO_DEVICE); |
| 3482 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3483 | DP(NETIF_MSG_TX_QUEUED, |
| 3484 | "SKB mapping failed - silently dropping this SKB\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3485 | dev_kfree_skb_any(skb); |
| 3486 | return NETDEV_TX_OK; |
| 3487 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3488 | /* |
| 3489 | Please read carefully. First we use one BD which we mark as start, |
| 3490 | then we have a parsing info BD (used for TSO or xsum), |
| 3491 | and only then we have the rest of the TSO BDs. |
| 3492 | (don't forget to mark the last one as last, |
| 3493 | and to unmap only AFTER you write to the BD ...) |
| 3494 | And above all, all pdb sizes are in words - NOT DWORDS! |
| 3495 | */ |
| 3496 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3497 | /* get current pkt produced now - advance it just before sending packet |
| 3498 | * since mapping of pages may fail and cause packet to be dropped |
| 3499 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3500 | pkt_prod = txdata->tx_pkt_prod; |
| 3501 | bd_prod = TX_BD(txdata->tx_bd_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3502 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3503 | /* get a tx_buf and first BD |
| 3504 | * tx_start_bd may be changed during SPLIT, |
| 3505 | * but first_bd will always stay first |
| 3506 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3507 | tx_buf = &txdata->tx_buf_ring[TX_BD(pkt_prod)]; |
| 3508 | tx_start_bd = &txdata->tx_desc_ring[bd_prod].start_bd; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3509 | first_bd = tx_start_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3510 | |
| 3511 | tx_start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD; |
Yuval Mintz | 96bed4b | 2012-10-01 03:46:19 +0000 | [diff] [blame] | 3512 | SET_FLAG(tx_start_bd->general_data, |
| 3513 | ETH_TX_START_BD_PARSE_NBDS, |
| 3514 | 0); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3515 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3516 | /* header nbd */ |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3517 | SET_FLAG(tx_start_bd->general_data, ETH_TX_START_BD_HDR_NBDS, 1); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3518 | |
| 3519 | /* remember the first BD of the packet */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3520 | tx_buf->first_bd = txdata->tx_bd_prod; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3521 | tx_buf->skb = skb; |
| 3522 | tx_buf->flags = 0; |
| 3523 | |
| 3524 | DP(NETIF_MSG_TX_QUEUED, |
| 3525 | "sending pkt %u @%p next_idx %u bd %u @%p\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3526 | 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] | 3527 | |
Jesse Gross | eab6d18 | 2010-10-20 13:56:03 +0000 | [diff] [blame] | 3528 | if (vlan_tx_tag_present(skb)) { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3529 | tx_start_bd->vlan_or_ethertype = |
| 3530 | cpu_to_le16(vlan_tx_tag_get(skb)); |
| 3531 | tx_start_bd->bd_flags.as_bitfield |= |
| 3532 | (X_ETH_OUTBAND_VLAN << ETH_TX_BD_FLAGS_VLAN_MODE_SHIFT); |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3533 | } else { |
| 3534 | /* when transmitting in a vf, start bd must hold the ethertype |
| 3535 | * for fw to enforce it |
| 3536 | */ |
Yuval Mintz | 823e1d9 | 2013-01-14 05:11:47 +0000 | [diff] [blame] | 3537 | #ifndef BNX2X_STOP_ON_ERROR |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3538 | if (IS_VF(bp)) { |
Yuval Mintz | 823e1d9 | 2013-01-14 05:11:47 +0000 | [diff] [blame] | 3539 | #endif |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3540 | tx_start_bd->vlan_or_ethertype = |
| 3541 | cpu_to_le16(ntohs(eth->h_proto)); |
Yuval Mintz | 823e1d9 | 2013-01-14 05:11:47 +0000 | [diff] [blame] | 3542 | #ifndef BNX2X_STOP_ON_ERROR |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3543 | } else { |
| 3544 | /* used by FW for packet accounting */ |
| 3545 | tx_start_bd->vlan_or_ethertype = cpu_to_le16(pkt_prod); |
| 3546 | } |
Yuval Mintz | 823e1d9 | 2013-01-14 05:11:47 +0000 | [diff] [blame] | 3547 | #endif |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3548 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3549 | |
| 3550 | /* turn on parsing and get a BD */ |
| 3551 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3552 | |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 3553 | if (xmit_type & XMIT_CSUM) |
| 3554 | bnx2x_set_sbd_csum(bp, skb, tx_start_bd, xmit_type); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3555 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3556 | if (!CHIP_IS_E1x(bp)) { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3557 | pbd_e2 = &txdata->tx_desc_ring[bd_prod].parse_bd_e2; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3558 | memset(pbd_e2, 0, sizeof(struct eth_tx_parse_bd_e2)); |
| 3559 | /* Set PBD in checksum offload case */ |
| 3560 | if (xmit_type & XMIT_CSUM) |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3561 | hlen = bnx2x_set_pbd_csum_e2(bp, skb, |
| 3562 | &pbd_e2_parsing_data, |
| 3563 | xmit_type); |
Ariel Elior | dc1ba59 | 2013-01-01 05:22:30 +0000 | [diff] [blame] | 3564 | |
| 3565 | if (IS_MF_SI(bp) || IS_VF(bp)) { |
| 3566 | /* fill in the MAC addresses in the PBD - for local |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3567 | * switching |
| 3568 | */ |
| 3569 | bnx2x_set_fw_mac_addr(&pbd_e2->src_mac_addr_hi, |
| 3570 | &pbd_e2->src_mac_addr_mid, |
| 3571 | &pbd_e2->src_mac_addr_lo, |
| 3572 | eth->h_source); |
| 3573 | bnx2x_set_fw_mac_addr(&pbd_e2->dst_mac_addr_hi, |
| 3574 | &pbd_e2->dst_mac_addr_mid, |
| 3575 | &pbd_e2->dst_mac_addr_lo, |
| 3576 | eth->h_dest); |
| 3577 | } |
Yuval Mintz | 96bed4b | 2012-10-01 03:46:19 +0000 | [diff] [blame] | 3578 | |
| 3579 | SET_FLAG(pbd_e2_parsing_data, |
| 3580 | ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE, mac_type); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3581 | } else { |
Yuval Mintz | 96bed4b | 2012-10-01 03:46:19 +0000 | [diff] [blame] | 3582 | u16 global_data = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3583 | pbd_e1x = &txdata->tx_desc_ring[bd_prod].parse_bd_e1x; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3584 | memset(pbd_e1x, 0, sizeof(struct eth_tx_parse_bd_e1x)); |
| 3585 | /* Set PBD in checksum offload case */ |
| 3586 | if (xmit_type & XMIT_CSUM) |
| 3587 | hlen = bnx2x_set_pbd_csum(bp, skb, pbd_e1x, xmit_type); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3588 | |
Yuval Mintz | 96bed4b | 2012-10-01 03:46:19 +0000 | [diff] [blame] | 3589 | SET_FLAG(global_data, |
| 3590 | ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE, mac_type); |
| 3591 | pbd_e1x->global_data |= cpu_to_le16(global_data); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3592 | } |
| 3593 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3594 | /* Setup the data pointer of the first BD of the packet */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3595 | tx_start_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 3596 | tx_start_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3597 | nbd = 2; /* start_bd + pbd + frags (updated when pages are mapped) */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3598 | tx_start_bd->nbytes = cpu_to_le16(skb_headlen(skb)); |
| 3599 | pkt_size = tx_start_bd->nbytes; |
| 3600 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3601 | DP(NETIF_MSG_TX_QUEUED, |
| 3602 | "first bd @%p addr (%x:%x) nbd %d nbytes %d flags %x vlan %x\n", |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3603 | tx_start_bd, tx_start_bd->addr_hi, tx_start_bd->addr_lo, |
| 3604 | le16_to_cpu(tx_start_bd->nbd), le16_to_cpu(tx_start_bd->nbytes), |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3605 | tx_start_bd->bd_flags.as_bitfield, |
| 3606 | le16_to_cpu(tx_start_bd->vlan_or_ethertype)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3607 | |
| 3608 | if (xmit_type & XMIT_GSO) { |
| 3609 | |
| 3610 | DP(NETIF_MSG_TX_QUEUED, |
| 3611 | "TSO packet len %d hlen %d total len %d tso size %d\n", |
| 3612 | skb->len, hlen, skb_headlen(skb), |
| 3613 | skb_shinfo(skb)->gso_size); |
| 3614 | |
| 3615 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_SW_LSO; |
| 3616 | |
| 3617 | if (unlikely(skb_headlen(skb) > hlen)) |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3618 | bd_prod = bnx2x_tx_split(bp, txdata, tx_buf, |
| 3619 | &tx_start_bd, hlen, |
| 3620 | bd_prod, ++nbd); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3621 | if (!CHIP_IS_E1x(bp)) |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3622 | bnx2x_set_pbd_gso_e2(skb, &pbd_e2_parsing_data, |
| 3623 | xmit_type); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3624 | else |
| 3625 | bnx2x_set_pbd_gso(skb, pbd_e1x, xmit_type); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3626 | } |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 3627 | |
| 3628 | /* Set the PBD's parsing_data field if not zero |
| 3629 | * (for the chips newer than 57711). |
| 3630 | */ |
| 3631 | if (pbd_e2_parsing_data) |
| 3632 | pbd_e2->parsing_data = cpu_to_le32(pbd_e2_parsing_data); |
| 3633 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3634 | tx_data_bd = (struct eth_tx_bd *)tx_start_bd; |
| 3635 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3636 | /* Handle fragmented skb */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3637 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| 3638 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
| 3639 | |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3640 | mapping = skb_frag_dma_map(&bp->pdev->dev, frag, 0, |
| 3641 | skb_frag_size(frag), DMA_TO_DEVICE); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3642 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 3643 | unsigned int pkts_compl = 0, bytes_compl = 0; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3644 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3645 | DP(NETIF_MSG_TX_QUEUED, |
| 3646 | "Unable to map page - dropping packet...\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3647 | |
| 3648 | /* we need unmap all buffers already mapped |
| 3649 | * for this SKB; |
| 3650 | * first_bd->nbd need to be properly updated |
| 3651 | * before call to bnx2x_free_tx_pkt |
| 3652 | */ |
| 3653 | first_bd->nbd = cpu_to_le16(nbd); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3654 | bnx2x_free_tx_pkt(bp, txdata, |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 3655 | TX_BD(txdata->tx_pkt_prod), |
| 3656 | &pkts_compl, &bytes_compl); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3657 | return NETDEV_TX_OK; |
| 3658 | } |
| 3659 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3660 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3661 | tx_data_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3662 | if (total_pkt_bd == NULL) |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3663 | total_pkt_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3664 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3665 | tx_data_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 3666 | tx_data_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3667 | tx_data_bd->nbytes = cpu_to_le16(skb_frag_size(frag)); |
| 3668 | le16_add_cpu(&pkt_size, skb_frag_size(frag)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3669 | nbd++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3670 | |
| 3671 | DP(NETIF_MSG_TX_QUEUED, |
| 3672 | "frag %d bd @%p addr (%x:%x) nbytes %d\n", |
| 3673 | i, tx_data_bd, tx_data_bd->addr_hi, tx_data_bd->addr_lo, |
| 3674 | le16_to_cpu(tx_data_bd->nbytes)); |
| 3675 | } |
| 3676 | |
| 3677 | DP(NETIF_MSG_TX_QUEUED, "last bd @%p\n", tx_data_bd); |
| 3678 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3679 | /* update with actual num BDs */ |
| 3680 | first_bd->nbd = cpu_to_le16(nbd); |
| 3681 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3682 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
| 3683 | |
| 3684 | /* now send a tx doorbell, counting the next BD |
| 3685 | * if the packet contains or ends with it |
| 3686 | */ |
| 3687 | if (TX_BD_POFF(bd_prod) < nbd) |
| 3688 | nbd++; |
| 3689 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3690 | /* total_pkt_bytes should be set on the first data BD if |
| 3691 | * it's not an LSO packet and there is more than one |
| 3692 | * data BD. In this case pkt_size is limited by an MTU value. |
| 3693 | * However we prefer to set it for an LSO packet (while we don't |
| 3694 | * have to) in order to save some CPU cycles in a none-LSO |
| 3695 | * case, when we much more care about them. |
| 3696 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3697 | if (total_pkt_bd != NULL) |
| 3698 | total_pkt_bd->total_pkt_bytes = pkt_size; |
| 3699 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3700 | if (pbd_e1x) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3701 | DP(NETIF_MSG_TX_QUEUED, |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3702 | "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] | 3703 | pbd_e1x, pbd_e1x->global_data, pbd_e1x->ip_hlen_w, |
| 3704 | pbd_e1x->ip_id, pbd_e1x->lso_mss, pbd_e1x->tcp_flags, |
| 3705 | pbd_e1x->tcp_pseudo_csum, pbd_e1x->tcp_send_seq, |
| 3706 | le16_to_cpu(pbd_e1x->total_hlen_w)); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3707 | if (pbd_e2) |
| 3708 | DP(NETIF_MSG_TX_QUEUED, |
| 3709 | "PBD (E2) @%p dst %x %x %x src %x %x %x parsing_data %x\n", |
| 3710 | pbd_e2, pbd_e2->dst_mac_addr_hi, pbd_e2->dst_mac_addr_mid, |
| 3711 | pbd_e2->dst_mac_addr_lo, pbd_e2->src_mac_addr_hi, |
| 3712 | pbd_e2->src_mac_addr_mid, pbd_e2->src_mac_addr_lo, |
| 3713 | pbd_e2->parsing_data); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3714 | DP(NETIF_MSG_TX_QUEUED, "doorbell: nbd %d bd %u\n", nbd, bd_prod); |
| 3715 | |
Tom Herbert | 2df1a70 | 2011-11-28 16:33:37 +0000 | [diff] [blame] | 3716 | netdev_tx_sent_queue(txq, skb->len); |
| 3717 | |
Willem de Bruijn | 8373c57 | 2012-04-27 09:04:06 +0000 | [diff] [blame] | 3718 | skb_tx_timestamp(skb); |
| 3719 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3720 | txdata->tx_pkt_prod++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3721 | /* |
| 3722 | * Make sure that the BD data is updated before updating the producer |
| 3723 | * since FW might read the BD right after the producer is updated. |
| 3724 | * This is only applicable for weak-ordered memory model archs such |
| 3725 | * as IA-64. The following barrier is also mandatory since FW will |
| 3726 | * assumes packets must have BDs. |
| 3727 | */ |
| 3728 | wmb(); |
| 3729 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3730 | txdata->tx_db.data.prod += nbd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3731 | barrier(); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3732 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3733 | DOORBELL(bp, txdata->cid, txdata->tx_db.raw); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3734 | |
| 3735 | mmiowb(); |
| 3736 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3737 | txdata->tx_bd_prod += nbd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3738 | |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 3739 | if (unlikely(bnx2x_tx_avail(bp, txdata) < MAX_DESC_PER_TX_PKT)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3740 | netif_tx_stop_queue(txq); |
| 3741 | |
| 3742 | /* paired memory barrier is in bnx2x_tx_int(), we have to keep |
| 3743 | * ordering of set_bit() in netif_tx_stop_queue() and read of |
| 3744 | * fp->bd_tx_cons */ |
| 3745 | smp_mb(); |
| 3746 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 3747 | bnx2x_fp_qstats(bp, txdata->parent_fp)->driver_xoff++; |
Dmitry Kravkov | 7df2dc6 | 2012-06-25 22:32:50 +0000 | [diff] [blame] | 3748 | if (bnx2x_tx_avail(bp, txdata) >= MAX_DESC_PER_TX_PKT) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3749 | netif_tx_wake_queue(txq); |
| 3750 | } |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3751 | txdata->tx_pkt++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3752 | |
| 3753 | return NETDEV_TX_OK; |
| 3754 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 3755 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3756 | /** |
| 3757 | * bnx2x_setup_tc - routine to configure net_device for multi tc |
| 3758 | * |
| 3759 | * @netdev: net device to configure |
| 3760 | * @tc: number of traffic classes to enable |
| 3761 | * |
| 3762 | * callback connected to the ndo_setup_tc function pointer |
| 3763 | */ |
| 3764 | int bnx2x_setup_tc(struct net_device *dev, u8 num_tc) |
| 3765 | { |
| 3766 | int cos, prio, count, offset; |
| 3767 | struct bnx2x *bp = netdev_priv(dev); |
| 3768 | |
| 3769 | /* setup tc must be called under rtnl lock */ |
| 3770 | ASSERT_RTNL(); |
| 3771 | |
| 3772 | /* no traffic classes requested. aborting */ |
| 3773 | if (!num_tc) { |
| 3774 | netdev_reset_tc(dev); |
| 3775 | return 0; |
| 3776 | } |
| 3777 | |
| 3778 | /* requested to support too many traffic classes */ |
| 3779 | if (num_tc > bp->max_cos) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3780 | BNX2X_ERR("support for too many traffic classes requested: %d. max supported is %d\n", |
| 3781 | num_tc, bp->max_cos); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3782 | return -EINVAL; |
| 3783 | } |
| 3784 | |
| 3785 | /* declare amount of supported traffic classes */ |
| 3786 | if (netdev_set_num_tc(dev, num_tc)) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3787 | BNX2X_ERR("failed to declare %d traffic classes\n", num_tc); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3788 | return -EINVAL; |
| 3789 | } |
| 3790 | |
| 3791 | /* configure priority to traffic class mapping */ |
| 3792 | for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) { |
| 3793 | netdev_set_prio_tc_map(dev, prio, bp->prio_to_cos[prio]); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3794 | DP(BNX2X_MSG_SP | NETIF_MSG_IFUP, |
| 3795 | "mapping priority %d to tc %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3796 | prio, bp->prio_to_cos[prio]); |
| 3797 | } |
| 3798 | |
| 3799 | |
| 3800 | /* Use this configuration to diffrentiate tc0 from other COSes |
| 3801 | This can be used for ets or pfc, and save the effort of setting |
| 3802 | up a multio class queue disc or negotiating DCBX with a switch |
| 3803 | netdev_set_prio_tc_map(dev, 0, 0); |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 3804 | 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] | 3805 | for (prio = 1; prio < 16; prio++) { |
| 3806 | netdev_set_prio_tc_map(dev, prio, 1); |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 3807 | 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] | 3808 | } */ |
| 3809 | |
| 3810 | /* configure traffic class to transmission queue mapping */ |
| 3811 | for (cos = 0; cos < bp->max_cos; cos++) { |
| 3812 | count = BNX2X_NUM_ETH_QUEUES(bp); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3813 | offset = cos * BNX2X_NUM_NON_CNIC_QUEUES(bp); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3814 | netdev_set_tc_queue(dev, cos, count, offset); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3815 | DP(BNX2X_MSG_SP | NETIF_MSG_IFUP, |
| 3816 | "mapping tc %d to offset %d count %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3817 | cos, offset, count); |
| 3818 | } |
| 3819 | |
| 3820 | return 0; |
| 3821 | } |
| 3822 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3823 | /* called with rtnl_lock */ |
| 3824 | int bnx2x_change_mac_addr(struct net_device *dev, void *p) |
| 3825 | { |
| 3826 | struct sockaddr *addr = p; |
| 3827 | struct bnx2x *bp = netdev_priv(dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3828 | int rc = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3829 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3830 | if (!bnx2x_is_valid_ether_addr(bp, addr->sa_data)) { |
| 3831 | BNX2X_ERR("Requested MAC address is not valid\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3832 | return -EINVAL; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3833 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3834 | |
Barak Witkowski | a334872 | 2012-04-23 03:04:46 +0000 | [diff] [blame] | 3835 | if ((IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp)) && |
| 3836 | !is_zero_ether_addr(addr->sa_data)) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3837 | 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] | 3838 | return -EINVAL; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3839 | } |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 3840 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3841 | if (netif_running(dev)) { |
| 3842 | rc = bnx2x_set_eth_mac(bp, false); |
| 3843 | if (rc) |
| 3844 | return rc; |
| 3845 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3846 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3847 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
| 3848 | |
| 3849 | if (netif_running(dev)) |
| 3850 | rc = bnx2x_set_eth_mac(bp, true); |
| 3851 | |
| 3852 | return rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3853 | } |
| 3854 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3855 | static void bnx2x_free_fp_mem_at(struct bnx2x *bp, int fp_index) |
| 3856 | { |
| 3857 | union host_hc_status_block *sb = &bnx2x_fp(bp, fp_index, status_blk); |
| 3858 | struct bnx2x_fastpath *fp = &bp->fp[fp_index]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3859 | u8 cos; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3860 | |
| 3861 | /* Common */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3862 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3863 | if (IS_FCOE_IDX(fp_index)) { |
| 3864 | memset(sb, 0, sizeof(union host_hc_status_block)); |
| 3865 | fp->status_blk_mapping = 0; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3866 | } else { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3867 | /* status blocks */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3868 | if (!CHIP_IS_E1x(bp)) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3869 | BNX2X_PCI_FREE(sb->e2_sb, |
| 3870 | bnx2x_fp(bp, fp_index, |
| 3871 | status_blk_mapping), |
| 3872 | sizeof(struct host_hc_status_block_e2)); |
| 3873 | else |
| 3874 | BNX2X_PCI_FREE(sb->e1x_sb, |
| 3875 | bnx2x_fp(bp, fp_index, |
| 3876 | status_blk_mapping), |
| 3877 | sizeof(struct host_hc_status_block_e1x)); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3878 | } |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3879 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3880 | /* Rx */ |
| 3881 | if (!skip_rx_queue(bp, fp_index)) { |
| 3882 | bnx2x_free_rx_bds(fp); |
| 3883 | |
| 3884 | /* fastpath rx rings: rx_buf rx_desc rx_comp */ |
| 3885 | BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_buf_ring)); |
| 3886 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_desc_ring), |
| 3887 | bnx2x_fp(bp, fp_index, rx_desc_mapping), |
| 3888 | sizeof(struct eth_rx_bd) * NUM_RX_BD); |
| 3889 | |
| 3890 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_comp_ring), |
| 3891 | bnx2x_fp(bp, fp_index, rx_comp_mapping), |
| 3892 | sizeof(struct eth_fast_path_rx_cqe) * |
| 3893 | NUM_RCQ_BD); |
| 3894 | |
| 3895 | /* SGE ring */ |
| 3896 | BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_page_ring)); |
| 3897 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_sge_ring), |
| 3898 | bnx2x_fp(bp, fp_index, rx_sge_mapping), |
| 3899 | BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); |
| 3900 | } |
| 3901 | |
| 3902 | /* Tx */ |
| 3903 | if (!skip_tx_queue(bp, fp_index)) { |
| 3904 | /* fastpath tx rings: tx_buf tx_desc */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3905 | for_each_cos_in_tx_queue(fp, cos) { |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 3906 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3907 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 3908 | DP(NETIF_MSG_IFDOWN, |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 3909 | "freeing tx memory of fp %d cos %d cid %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3910 | fp_index, cos, txdata->cid); |
| 3911 | |
| 3912 | BNX2X_FREE(txdata->tx_buf_ring); |
| 3913 | BNX2X_PCI_FREE(txdata->tx_desc_ring, |
| 3914 | txdata->tx_desc_mapping, |
| 3915 | sizeof(union eth_tx_bd_types) * NUM_TX_BD); |
| 3916 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3917 | } |
| 3918 | /* end of fastpath */ |
| 3919 | } |
| 3920 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3921 | void bnx2x_free_fp_mem_cnic(struct bnx2x *bp) |
| 3922 | { |
| 3923 | int i; |
| 3924 | for_each_cnic_queue(bp, i) |
| 3925 | bnx2x_free_fp_mem_at(bp, i); |
| 3926 | } |
| 3927 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3928 | void bnx2x_free_fp_mem(struct bnx2x *bp) |
| 3929 | { |
| 3930 | int i; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 3931 | for_each_eth_queue(bp, i) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3932 | bnx2x_free_fp_mem_at(bp, i); |
| 3933 | } |
| 3934 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 3935 | static void set_sb_shortcuts(struct bnx2x *bp, int index) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3936 | { |
| 3937 | 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] | 3938 | if (!CHIP_IS_E1x(bp)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3939 | bnx2x_fp(bp, index, sb_index_values) = |
| 3940 | (__le16 *)status_blk.e2_sb->sb.index_values; |
| 3941 | bnx2x_fp(bp, index, sb_running_index) = |
| 3942 | (__le16 *)status_blk.e2_sb->sb.running_index; |
| 3943 | } else { |
| 3944 | bnx2x_fp(bp, index, sb_index_values) = |
| 3945 | (__le16 *)status_blk.e1x_sb->sb.index_values; |
| 3946 | bnx2x_fp(bp, index, sb_running_index) = |
| 3947 | (__le16 *)status_blk.e1x_sb->sb.running_index; |
| 3948 | } |
| 3949 | } |
| 3950 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 3951 | /* Returns the number of actually allocated BDs */ |
| 3952 | static int bnx2x_alloc_rx_bds(struct bnx2x_fastpath *fp, |
| 3953 | int rx_ring_size) |
| 3954 | { |
| 3955 | struct bnx2x *bp = fp->bp; |
| 3956 | u16 ring_prod, cqe_ring_prod; |
| 3957 | int i, failure_cnt = 0; |
| 3958 | |
| 3959 | fp->rx_comp_cons = 0; |
| 3960 | cqe_ring_prod = ring_prod = 0; |
| 3961 | |
| 3962 | /* This routine is called only during fo init so |
| 3963 | * fp->eth_q_stats.rx_skb_alloc_failed = 0 |
| 3964 | */ |
| 3965 | for (i = 0; i < rx_ring_size; i++) { |
| 3966 | if (bnx2x_alloc_rx_data(bp, fp, ring_prod) < 0) { |
| 3967 | failure_cnt++; |
| 3968 | continue; |
| 3969 | } |
| 3970 | ring_prod = NEXT_RX_IDX(ring_prod); |
| 3971 | cqe_ring_prod = NEXT_RCQ_IDX(cqe_ring_prod); |
| 3972 | WARN_ON(ring_prod <= (i - failure_cnt)); |
| 3973 | } |
| 3974 | |
| 3975 | if (failure_cnt) |
| 3976 | BNX2X_ERR("was only able to allocate %d rx skbs on queue[%d]\n", |
| 3977 | i - failure_cnt, fp->index); |
| 3978 | |
| 3979 | fp->rx_bd_prod = ring_prod; |
| 3980 | /* Limit the CQE producer by the CQE ring size */ |
| 3981 | fp->rx_comp_prod = min_t(u16, NUM_RCQ_RINGS*RCQ_DESC_CNT, |
| 3982 | cqe_ring_prod); |
| 3983 | fp->rx_pkt = fp->rx_calls = 0; |
| 3984 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 3985 | 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] | 3986 | |
| 3987 | return i - failure_cnt; |
| 3988 | } |
| 3989 | |
| 3990 | static void bnx2x_set_next_page_rx_cq(struct bnx2x_fastpath *fp) |
| 3991 | { |
| 3992 | int i; |
| 3993 | |
| 3994 | for (i = 1; i <= NUM_RCQ_RINGS; i++) { |
| 3995 | struct eth_rx_cqe_next_page *nextpg; |
| 3996 | |
| 3997 | nextpg = (struct eth_rx_cqe_next_page *) |
| 3998 | &fp->rx_comp_ring[RCQ_DESC_CNT * i - 1]; |
| 3999 | nextpg->addr_hi = |
| 4000 | cpu_to_le32(U64_HI(fp->rx_comp_mapping + |
| 4001 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); |
| 4002 | nextpg->addr_lo = |
| 4003 | cpu_to_le32(U64_LO(fp->rx_comp_mapping + |
| 4004 | BCM_PAGE_SIZE*(i % NUM_RCQ_RINGS))); |
| 4005 | } |
| 4006 | } |
| 4007 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4008 | static int bnx2x_alloc_fp_mem_at(struct bnx2x *bp, int index) |
| 4009 | { |
| 4010 | union host_hc_status_block *sb; |
| 4011 | struct bnx2x_fastpath *fp = &bp->fp[index]; |
| 4012 | int ring_size = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4013 | u8 cos; |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4014 | int rx_ring_size = 0; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4015 | |
Barak Witkowski | a334872 | 2012-04-23 03:04:46 +0000 | [diff] [blame] | 4016 | if (!bp->rx_ring_size && |
| 4017 | (IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp))) { |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 4018 | rx_ring_size = MIN_RX_SIZE_NONTPA; |
| 4019 | bp->rx_ring_size = rx_ring_size; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4020 | } else if (!bp->rx_ring_size) { |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4021 | rx_ring_size = MAX_RX_AVAIL/BNX2X_NUM_RX_QUEUES(bp); |
| 4022 | |
Yuval Mintz | 065f8b9 | 2012-10-03 04:22:59 +0000 | [diff] [blame] | 4023 | if (CHIP_IS_E3(bp)) { |
| 4024 | u32 cfg = SHMEM_RD(bp, |
| 4025 | dev_info.port_hw_config[BP_PORT(bp)]. |
| 4026 | default_cfg); |
| 4027 | |
| 4028 | /* Decrease ring size for 1G functions */ |
| 4029 | if ((cfg & PORT_HW_CFG_NET_SERDES_IF_MASK) == |
| 4030 | PORT_HW_CFG_NET_SERDES_IF_SGMII) |
| 4031 | rx_ring_size /= 10; |
| 4032 | } |
Mintz Yuval | d760fc3 | 2012-02-15 02:10:28 +0000 | [diff] [blame] | 4033 | |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4034 | /* allocate at least number of buffers required by FW */ |
| 4035 | rx_ring_size = max_t(int, bp->disable_tpa ? MIN_RX_SIZE_NONTPA : |
| 4036 | MIN_RX_SIZE_TPA, rx_ring_size); |
| 4037 | |
| 4038 | bp->rx_ring_size = rx_ring_size; |
Dmitry Kravkov | 614c76d | 2011-11-28 12:31:49 +0000 | [diff] [blame] | 4039 | } else /* if rx_ring_size specified - use it */ |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame] | 4040 | rx_ring_size = bp->rx_ring_size; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4041 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4042 | /* Common */ |
| 4043 | sb = &bnx2x_fp(bp, index, status_blk); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4044 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4045 | if (!IS_FCOE_IDX(index)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4046 | /* status blocks */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4047 | if (!CHIP_IS_E1x(bp)) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4048 | BNX2X_PCI_ALLOC(sb->e2_sb, |
| 4049 | &bnx2x_fp(bp, index, status_blk_mapping), |
| 4050 | sizeof(struct host_hc_status_block_e2)); |
| 4051 | else |
| 4052 | BNX2X_PCI_ALLOC(sb->e1x_sb, |
| 4053 | &bnx2x_fp(bp, index, status_blk_mapping), |
| 4054 | sizeof(struct host_hc_status_block_e1x)); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4055 | } |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 4056 | |
| 4057 | /* FCoE Queue uses Default SB and doesn't ACK the SB, thus no need to |
| 4058 | * set shortcuts for it. |
| 4059 | */ |
| 4060 | if (!IS_FCOE_IDX(index)) |
| 4061 | set_sb_shortcuts(bp, index); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4062 | |
| 4063 | /* Tx */ |
| 4064 | if (!skip_tx_queue(bp, index)) { |
| 4065 | /* fastpath tx rings: tx_buf tx_desc */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4066 | for_each_cos_in_tx_queue(fp, cos) { |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4067 | struct bnx2x_fp_txdata *txdata = fp->txdata_ptr[cos]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4068 | |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4069 | DP(NETIF_MSG_IFUP, |
| 4070 | "allocating tx memory of fp %d cos %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4071 | index, cos); |
| 4072 | |
| 4073 | BNX2X_ALLOC(txdata->tx_buf_ring, |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4074 | sizeof(struct sw_tx_bd) * NUM_TX_BD); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4075 | BNX2X_PCI_ALLOC(txdata->tx_desc_ring, |
| 4076 | &txdata->tx_desc_mapping, |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4077 | sizeof(union eth_tx_bd_types) * NUM_TX_BD); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4078 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4079 | } |
| 4080 | |
| 4081 | /* Rx */ |
| 4082 | if (!skip_rx_queue(bp, index)) { |
| 4083 | /* fastpath rx rings: rx_buf rx_desc rx_comp */ |
| 4084 | BNX2X_ALLOC(bnx2x_fp(bp, index, rx_buf_ring), |
| 4085 | sizeof(struct sw_rx_bd) * NUM_RX_BD); |
| 4086 | BNX2X_PCI_ALLOC(bnx2x_fp(bp, index, rx_desc_ring), |
| 4087 | &bnx2x_fp(bp, index, rx_desc_mapping), |
| 4088 | sizeof(struct eth_rx_bd) * NUM_RX_BD); |
| 4089 | |
| 4090 | BNX2X_PCI_ALLOC(bnx2x_fp(bp, index, rx_comp_ring), |
| 4091 | &bnx2x_fp(bp, index, rx_comp_mapping), |
| 4092 | sizeof(struct eth_fast_path_rx_cqe) * |
| 4093 | NUM_RCQ_BD); |
| 4094 | |
| 4095 | /* SGE ring */ |
| 4096 | BNX2X_ALLOC(bnx2x_fp(bp, index, rx_page_ring), |
| 4097 | sizeof(struct sw_rx_page) * NUM_RX_SGE); |
| 4098 | BNX2X_PCI_ALLOC(bnx2x_fp(bp, index, rx_sge_ring), |
| 4099 | &bnx2x_fp(bp, index, rx_sge_mapping), |
| 4100 | BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); |
| 4101 | /* RX BD ring */ |
| 4102 | bnx2x_set_next_page_rx_bd(fp); |
| 4103 | |
| 4104 | /* CQ ring */ |
| 4105 | bnx2x_set_next_page_rx_cq(fp); |
| 4106 | |
| 4107 | /* BDs */ |
| 4108 | ring_size = bnx2x_alloc_rx_bds(fp, rx_ring_size); |
| 4109 | if (ring_size < rx_ring_size) |
| 4110 | goto alloc_mem_err; |
| 4111 | } |
| 4112 | |
| 4113 | return 0; |
| 4114 | |
| 4115 | /* handles low memory cases */ |
| 4116 | alloc_mem_err: |
| 4117 | BNX2X_ERR("Unable to allocate full memory for queue %d (size %d)\n", |
| 4118 | index, ring_size); |
| 4119 | /* FW will drop all packets if queue is not big enough, |
| 4120 | * In these cases we disable the queue |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4121 | * Min size is different for OOO, TPA and non-TPA queues |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4122 | */ |
| 4123 | if (ring_size < (fp->disable_tpa ? |
Dmitry Kravkov | eb722d7 | 2011-05-24 02:06:06 +0000 | [diff] [blame] | 4124 | MIN_RX_SIZE_NONTPA : MIN_RX_SIZE_TPA)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4125 | /* release memory allocated for this queue */ |
| 4126 | bnx2x_free_fp_mem_at(bp, index); |
| 4127 | return -ENOMEM; |
| 4128 | } |
| 4129 | return 0; |
| 4130 | } |
| 4131 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4132 | int bnx2x_alloc_fp_mem_cnic(struct bnx2x *bp) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4133 | { |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 4134 | if (!NO_FCOE(bp)) |
| 4135 | /* FCoE */ |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4136 | if (bnx2x_alloc_fp_mem_at(bp, FCOE_IDX(bp))) |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 4137 | /* we will fail load process instead of mark |
| 4138 | * NO_FCOE_FLAG |
| 4139 | */ |
| 4140 | return -ENOMEM; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4141 | |
| 4142 | return 0; |
| 4143 | } |
| 4144 | |
| 4145 | int bnx2x_alloc_fp_mem(struct bnx2x *bp) |
| 4146 | { |
| 4147 | int i; |
| 4148 | |
| 4149 | /* 1. Allocate FP for leading - fatal if error |
| 4150 | * 2. Allocate RSS - fix number of queues if error |
| 4151 | */ |
| 4152 | |
| 4153 | /* leading */ |
| 4154 | if (bnx2x_alloc_fp_mem_at(bp, 0)) |
| 4155 | return -ENOMEM; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4156 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4157 | /* RSS */ |
| 4158 | for_each_nondefault_eth_queue(bp, i) |
| 4159 | if (bnx2x_alloc_fp_mem_at(bp, i)) |
| 4160 | break; |
| 4161 | |
| 4162 | /* handle memory failures */ |
| 4163 | if (i != BNX2X_NUM_ETH_QUEUES(bp)) { |
| 4164 | int delta = BNX2X_NUM_ETH_QUEUES(bp) - i; |
| 4165 | |
| 4166 | WARN_ON(delta < 0); |
Yuval Mintz | 4864a16 | 2013-01-10 04:53:39 +0000 | [diff] [blame] | 4167 | bnx2x_shrink_eth_fp(bp, delta); |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4168 | if (CNIC_SUPPORT(bp)) |
| 4169 | /* move non eth FPs next to last eth FP |
| 4170 | * must be done in that order |
| 4171 | * FCOE_IDX < FWD_IDX < OOO_IDX |
| 4172 | */ |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4173 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4174 | /* move FCoE fp even NO_FCOE_FLAG is on */ |
| 4175 | bnx2x_move_fp(bp, FCOE_IDX(bp), FCOE_IDX(bp) - delta); |
| 4176 | bp->num_ethernet_queues -= delta; |
| 4177 | bp->num_queues = bp->num_ethernet_queues + |
| 4178 | bp->num_cnic_queues; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 4179 | BNX2X_ERR("Adjusted num of queues from %d to %d\n", |
| 4180 | bp->num_queues + delta, bp->num_queues); |
| 4181 | } |
| 4182 | |
| 4183 | return 0; |
| 4184 | } |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 4185 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4186 | void bnx2x_free_mem_bp(struct bnx2x *bp) |
| 4187 | { |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4188 | kfree(bp->fp->tpa_info); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4189 | kfree(bp->fp); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4190 | kfree(bp->sp_objs); |
| 4191 | kfree(bp->fp_stats); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4192 | kfree(bp->bnx2x_txq); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4193 | kfree(bp->msix_table); |
| 4194 | kfree(bp->ilt); |
| 4195 | } |
| 4196 | |
Bill Pemberton | 0329aba | 2012-12-03 09:24:24 -0500 | [diff] [blame] | 4197 | int bnx2x_alloc_mem_bp(struct bnx2x *bp) |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4198 | { |
| 4199 | struct bnx2x_fastpath *fp; |
| 4200 | struct msix_entry *tbl; |
| 4201 | struct bnx2x_ilt *ilt; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4202 | int msix_table_size = 0; |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4203 | int fp_array_size, txq_array_size; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4204 | int i; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4205 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4206 | /* |
| 4207 | * The biggest MSI-X table we might need is as a maximum number of fast |
| 4208 | * path IGU SBs plus default SB (for PF). |
| 4209 | */ |
Ariel Elior | 1ab4434 | 2013-01-01 05:22:23 +0000 | [diff] [blame] | 4210 | msix_table_size = bp->igu_sb_cnt; |
| 4211 | if (IS_PF(bp)) |
| 4212 | msix_table_size++; |
| 4213 | BNX2X_DEV_INFO("msix_table_size %d\n", msix_table_size); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 4214 | |
| 4215 | /* fp array: RSS plus CNIC related L2 queues */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4216 | fp_array_size = BNX2X_MAX_RSS_COUNT(bp) + CNIC_SUPPORT(bp); |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4217 | BNX2X_DEV_INFO("fp_array_size %d", fp_array_size); |
| 4218 | |
| 4219 | fp = kcalloc(fp_array_size, sizeof(*fp), GFP_KERNEL); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4220 | if (!fp) |
| 4221 | goto alloc_err; |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4222 | for (i = 0; i < fp_array_size; i++) { |
| 4223 | fp[i].tpa_info = |
| 4224 | kcalloc(ETH_MAX_AGGREGATION_QUEUES_E1H_E2, |
| 4225 | sizeof(struct bnx2x_agg_info), GFP_KERNEL); |
| 4226 | if (!(fp[i].tpa_info)) |
| 4227 | goto alloc_err; |
| 4228 | } |
| 4229 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4230 | bp->fp = fp; |
| 4231 | |
Barak Witkowski | 15192a8 | 2012-06-19 07:48:28 +0000 | [diff] [blame] | 4232 | /* allocate sp objs */ |
| 4233 | bp->sp_objs = kcalloc(fp_array_size, sizeof(struct bnx2x_sp_objs), |
| 4234 | GFP_KERNEL); |
| 4235 | if (!bp->sp_objs) |
| 4236 | goto alloc_err; |
| 4237 | |
| 4238 | /* allocate fp_stats */ |
| 4239 | bp->fp_stats = kcalloc(fp_array_size, sizeof(struct bnx2x_fp_stats), |
| 4240 | GFP_KERNEL); |
| 4241 | if (!bp->fp_stats) |
| 4242 | goto alloc_err; |
| 4243 | |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4244 | /* Allocate memory for the transmission queues array */ |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4245 | txq_array_size = |
| 4246 | BNX2X_MAX_RSS_COUNT(bp) * BNX2X_MULTI_TX_COS + CNIC_SUPPORT(bp); |
| 4247 | BNX2X_DEV_INFO("txq_array_size %d", txq_array_size); |
| 4248 | |
| 4249 | bp->bnx2x_txq = kcalloc(txq_array_size, sizeof(struct bnx2x_fp_txdata), |
| 4250 | GFP_KERNEL); |
Merav Sicron | 6556588 | 2012-06-19 07:48:26 +0000 | [diff] [blame] | 4251 | if (!bp->bnx2x_txq) |
| 4252 | goto alloc_err; |
| 4253 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4254 | /* msix table */ |
Thomas Meyer | 01e2374 | 2011-11-29 11:08:00 +0000 | [diff] [blame] | 4255 | tbl = kcalloc(msix_table_size, sizeof(*tbl), GFP_KERNEL); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 4256 | if (!tbl) |
| 4257 | goto alloc_err; |
| 4258 | bp->msix_table = tbl; |
| 4259 | |
| 4260 | /* ilt */ |
| 4261 | ilt = kzalloc(sizeof(*ilt), GFP_KERNEL); |
| 4262 | if (!ilt) |
| 4263 | goto alloc_err; |
| 4264 | bp->ilt = ilt; |
| 4265 | |
| 4266 | return 0; |
| 4267 | alloc_err: |
| 4268 | bnx2x_free_mem_bp(bp); |
| 4269 | return -ENOMEM; |
| 4270 | |
| 4271 | } |
| 4272 | |
Dmitry Kravkov | a9fccec | 2011-06-14 01:33:30 +0000 | [diff] [blame] | 4273 | int bnx2x_reload_if_running(struct net_device *dev) |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4274 | { |
| 4275 | struct bnx2x *bp = netdev_priv(dev); |
| 4276 | |
| 4277 | if (unlikely(!netif_running(dev))) |
| 4278 | return 0; |
| 4279 | |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 4280 | bnx2x_nic_unload(bp, UNLOAD_NORMAL, true); |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4281 | return bnx2x_nic_load(bp, LOAD_NORMAL); |
| 4282 | } |
| 4283 | |
Yaniv Rosner | 1ac9e42 | 2011-05-31 21:26:11 +0000 | [diff] [blame] | 4284 | int bnx2x_get_cur_phy_idx(struct bnx2x *bp) |
| 4285 | { |
| 4286 | u32 sel_phy_idx = 0; |
| 4287 | if (bp->link_params.num_phys <= 1) |
| 4288 | return INT_PHY; |
| 4289 | |
| 4290 | if (bp->link_vars.link_up) { |
| 4291 | sel_phy_idx = EXT_PHY1; |
| 4292 | /* In case link is SERDES, check if the EXT_PHY2 is the one */ |
| 4293 | if ((bp->link_vars.link_status & LINK_STATUS_SERDES_LINK) && |
| 4294 | (bp->link_params.phy[EXT_PHY2].supported & SUPPORTED_FIBRE)) |
| 4295 | sel_phy_idx = EXT_PHY2; |
| 4296 | } else { |
| 4297 | |
| 4298 | switch (bnx2x_phy_selection(&bp->link_params)) { |
| 4299 | case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT: |
| 4300 | case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY: |
| 4301 | case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY: |
| 4302 | sel_phy_idx = EXT_PHY1; |
| 4303 | break; |
| 4304 | case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY: |
| 4305 | case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY: |
| 4306 | sel_phy_idx = EXT_PHY2; |
| 4307 | break; |
| 4308 | } |
| 4309 | } |
| 4310 | |
| 4311 | return sel_phy_idx; |
| 4312 | |
| 4313 | } |
| 4314 | int bnx2x_get_link_cfg_idx(struct bnx2x *bp) |
| 4315 | { |
| 4316 | u32 sel_phy_idx = bnx2x_get_cur_phy_idx(bp); |
| 4317 | /* |
| 4318 | * The selected actived PHY is always after swapping (in case PHY |
| 4319 | * swapping is enabled). So when swapping is enabled, we need to reverse |
| 4320 | * the configuration |
| 4321 | */ |
| 4322 | |
| 4323 | if (bp->link_params.multi_phy_config & |
| 4324 | PORT_HW_CFG_PHY_SWAPPED_ENABLED) { |
| 4325 | if (sel_phy_idx == EXT_PHY1) |
| 4326 | sel_phy_idx = EXT_PHY2; |
| 4327 | else if (sel_phy_idx == EXT_PHY2) |
| 4328 | sel_phy_idx = EXT_PHY1; |
| 4329 | } |
| 4330 | return LINK_CONFIG_IDX(sel_phy_idx); |
| 4331 | } |
| 4332 | |
Merav Sicron | 55c1194 | 2012-11-07 00:45:48 +0000 | [diff] [blame] | 4333 | #ifdef NETDEV_FCOE_WWNN |
Vladislav Zolotarov | bf61ee1 | 2011-07-21 07:56:51 +0000 | [diff] [blame] | 4334 | int bnx2x_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type) |
| 4335 | { |
| 4336 | struct bnx2x *bp = netdev_priv(dev); |
| 4337 | struct cnic_eth_dev *cp = &bp->cnic_eth_dev; |
| 4338 | |
| 4339 | switch (type) { |
| 4340 | case NETDEV_FCOE_WWNN: |
| 4341 | *wwn = HILO_U64(cp->fcoe_wwn_node_name_hi, |
| 4342 | cp->fcoe_wwn_node_name_lo); |
| 4343 | break; |
| 4344 | case NETDEV_FCOE_WWPN: |
| 4345 | *wwn = HILO_U64(cp->fcoe_wwn_port_name_hi, |
| 4346 | cp->fcoe_wwn_port_name_lo); |
| 4347 | break; |
| 4348 | default: |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4349 | BNX2X_ERR("Wrong WWN type requested - %d\n", type); |
Vladislav Zolotarov | bf61ee1 | 2011-07-21 07:56:51 +0000 | [diff] [blame] | 4350 | return -EINVAL; |
| 4351 | } |
| 4352 | |
| 4353 | return 0; |
| 4354 | } |
| 4355 | #endif |
| 4356 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4357 | /* called with rtnl_lock */ |
| 4358 | int bnx2x_change_mtu(struct net_device *dev, int new_mtu) |
| 4359 | { |
| 4360 | struct bnx2x *bp = netdev_priv(dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4361 | |
| 4362 | if (bp->recovery_state != BNX2X_RECOVERY_DONE) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4363 | BNX2X_ERR("Can't perform change MTU during parity recovery\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4364 | return -EAGAIN; |
| 4365 | } |
| 4366 | |
| 4367 | if ((new_mtu > ETH_MAX_JUMBO_PACKET_SIZE) || |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4368 | ((new_mtu + ETH_HLEN) < ETH_MIN_PACKET_SIZE)) { |
| 4369 | BNX2X_ERR("Can't support requested MTU size\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4370 | return -EINVAL; |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4371 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4372 | |
| 4373 | /* This does not race with packet allocation |
| 4374 | * because the actual alloc size is |
| 4375 | * only updated as part of load |
| 4376 | */ |
| 4377 | dev->mtu = new_mtu; |
| 4378 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4379 | return bnx2x_reload_if_running(dev); |
| 4380 | } |
| 4381 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 4382 | netdev_features_t bnx2x_fix_features(struct net_device *dev, |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4383 | netdev_features_t features) |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4384 | { |
| 4385 | struct bnx2x *bp = netdev_priv(dev); |
| 4386 | |
| 4387 | /* TPA requires Rx CSUM offloading */ |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4388 | if (!(features & NETIF_F_RXCSUM) || bp->disable_tpa) { |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4389 | features &= ~NETIF_F_LRO; |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4390 | features &= ~NETIF_F_GRO; |
| 4391 | } |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4392 | |
| 4393 | return features; |
| 4394 | } |
| 4395 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 4396 | int bnx2x_set_features(struct net_device *dev, netdev_features_t features) |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4397 | { |
| 4398 | struct bnx2x *bp = netdev_priv(dev); |
| 4399 | u32 flags = bp->flags; |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4400 | bool bnx2x_reload = false; |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4401 | |
| 4402 | if (features & NETIF_F_LRO) |
| 4403 | flags |= TPA_ENABLE_FLAG; |
| 4404 | else |
| 4405 | flags &= ~TPA_ENABLE_FLAG; |
| 4406 | |
Dmitry Kravkov | 621b4d6 | 2012-02-20 09:59:08 +0000 | [diff] [blame] | 4407 | if (features & NETIF_F_GRO) |
| 4408 | flags |= GRO_ENABLE_FLAG; |
| 4409 | else |
| 4410 | flags &= ~GRO_ENABLE_FLAG; |
| 4411 | |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4412 | if (features & NETIF_F_LOOPBACK) { |
| 4413 | if (bp->link_params.loopback_mode != LOOPBACK_BMAC) { |
| 4414 | bp->link_params.loopback_mode = LOOPBACK_BMAC; |
| 4415 | bnx2x_reload = true; |
| 4416 | } |
| 4417 | } else { |
| 4418 | if (bp->link_params.loopback_mode != LOOPBACK_NONE) { |
| 4419 | bp->link_params.loopback_mode = LOOPBACK_NONE; |
| 4420 | bnx2x_reload = true; |
| 4421 | } |
| 4422 | } |
| 4423 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4424 | if (flags ^ bp->flags) { |
| 4425 | bp->flags = flags; |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4426 | bnx2x_reload = true; |
| 4427 | } |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4428 | |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 4429 | if (bnx2x_reload) { |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4430 | if (bp->recovery_state == BNX2X_RECOVERY_DONE) |
| 4431 | return bnx2x_reload_if_running(dev); |
| 4432 | /* else: bnx2x_nic_load() will be called at end of recovery */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4433 | } |
| 4434 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 4435 | return 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4436 | } |
| 4437 | |
| 4438 | void bnx2x_tx_timeout(struct net_device *dev) |
| 4439 | { |
| 4440 | struct bnx2x *bp = netdev_priv(dev); |
| 4441 | |
| 4442 | #ifdef BNX2X_STOP_ON_ERROR |
| 4443 | if (!bp->panic) |
| 4444 | bnx2x_panic(); |
| 4445 | #endif |
Ariel Elior | 7be08a7 | 2011-07-14 08:31:19 +0000 | [diff] [blame] | 4446 | |
| 4447 | smp_mb__before_clear_bit(); |
| 4448 | set_bit(BNX2X_SP_RTNL_TX_TIMEOUT, &bp->sp_rtnl_state); |
| 4449 | smp_mb__after_clear_bit(); |
| 4450 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4451 | /* This allows the netif to be shutdown gracefully before resetting */ |
Ariel Elior | 7be08a7 | 2011-07-14 08:31:19 +0000 | [diff] [blame] | 4452 | schedule_delayed_work(&bp->sp_rtnl_task, 0); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4453 | } |
| 4454 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4455 | int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state) |
| 4456 | { |
| 4457 | struct net_device *dev = pci_get_drvdata(pdev); |
| 4458 | struct bnx2x *bp; |
| 4459 | |
| 4460 | if (!dev) { |
| 4461 | dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n"); |
| 4462 | return -ENODEV; |
| 4463 | } |
| 4464 | bp = netdev_priv(dev); |
| 4465 | |
| 4466 | rtnl_lock(); |
| 4467 | |
| 4468 | pci_save_state(pdev); |
| 4469 | |
| 4470 | if (!netif_running(dev)) { |
| 4471 | rtnl_unlock(); |
| 4472 | return 0; |
| 4473 | } |
| 4474 | |
| 4475 | netif_device_detach(dev); |
| 4476 | |
Yuval Mintz | 5d07d86 | 2012-09-13 02:56:21 +0000 | [diff] [blame] | 4477 | bnx2x_nic_unload(bp, UNLOAD_CLOSE, false); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4478 | |
| 4479 | bnx2x_set_power_state(bp, pci_choose_state(pdev, state)); |
| 4480 | |
| 4481 | rtnl_unlock(); |
| 4482 | |
| 4483 | return 0; |
| 4484 | } |
| 4485 | |
| 4486 | int bnx2x_resume(struct pci_dev *pdev) |
| 4487 | { |
| 4488 | struct net_device *dev = pci_get_drvdata(pdev); |
| 4489 | struct bnx2x *bp; |
| 4490 | int rc; |
| 4491 | |
| 4492 | if (!dev) { |
| 4493 | dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n"); |
| 4494 | return -ENODEV; |
| 4495 | } |
| 4496 | bp = netdev_priv(dev); |
| 4497 | |
| 4498 | if (bp->recovery_state != BNX2X_RECOVERY_DONE) { |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4499 | BNX2X_ERR("Handling parity error recovery. Try again later\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4500 | return -EAGAIN; |
| 4501 | } |
| 4502 | |
| 4503 | rtnl_lock(); |
| 4504 | |
| 4505 | pci_restore_state(pdev); |
| 4506 | |
| 4507 | if (!netif_running(dev)) { |
| 4508 | rtnl_unlock(); |
| 4509 | return 0; |
| 4510 | } |
| 4511 | |
| 4512 | bnx2x_set_power_state(bp, PCI_D0); |
| 4513 | netif_device_attach(dev); |
| 4514 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 4515 | rc = bnx2x_nic_load(bp, LOAD_OPEN); |
| 4516 | |
| 4517 | rtnl_unlock(); |
| 4518 | |
| 4519 | return rc; |
| 4520 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4521 | |
| 4522 | |
| 4523 | void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt, |
| 4524 | u32 cid) |
| 4525 | { |
| 4526 | /* ustorm cxt validation */ |
| 4527 | cxt->ustorm_ag_context.cdu_usage = |
| 4528 | CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), |
| 4529 | CDU_REGION_NUMBER_UCM_AG, ETH_CONNECTION_TYPE); |
| 4530 | /* xcontext validation */ |
| 4531 | cxt->xstorm_ag_context.cdu_reserved = |
| 4532 | CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), |
| 4533 | CDU_REGION_NUMBER_XCM_AG, ETH_CONNECTION_TYPE); |
| 4534 | } |
| 4535 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4536 | static void storm_memset_hc_timeout(struct bnx2x *bp, u8 port, |
| 4537 | u8 fw_sb_id, u8 sb_index, |
| 4538 | u8 ticks) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4539 | { |
| 4540 | |
| 4541 | u32 addr = BAR_CSTRORM_INTMEM + |
| 4542 | CSTORM_STATUS_BLOCK_DATA_TIMEOUT_OFFSET(fw_sb_id, sb_index); |
| 4543 | REG_WR8(bp, addr, ticks); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4544 | DP(NETIF_MSG_IFUP, |
| 4545 | "port %x fw_sb_id %d sb_index %d ticks %d\n", |
| 4546 | port, fw_sb_id, sb_index, ticks); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4547 | } |
| 4548 | |
Eric Dumazet | 1191cb8 | 2012-04-27 21:39:21 +0000 | [diff] [blame] | 4549 | static void storm_memset_hc_disable(struct bnx2x *bp, u8 port, |
| 4550 | u16 fw_sb_id, u8 sb_index, |
| 4551 | u8 disable) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4552 | { |
| 4553 | u32 enable_flag = disable ? 0 : (1 << HC_INDEX_DATA_HC_ENABLED_SHIFT); |
| 4554 | u32 addr = BAR_CSTRORM_INTMEM + |
| 4555 | CSTORM_STATUS_BLOCK_DATA_FLAGS_OFFSET(fw_sb_id, sb_index); |
| 4556 | u16 flags = REG_RD16(bp, addr); |
| 4557 | /* clear and set */ |
| 4558 | flags &= ~HC_INDEX_DATA_HC_ENABLED; |
| 4559 | flags |= enable_flag; |
| 4560 | REG_WR16(bp, addr, flags); |
Merav Sicron | 51c1a58 | 2012-03-18 10:33:38 +0000 | [diff] [blame] | 4561 | DP(NETIF_MSG_IFUP, |
| 4562 | "port %x fw_sb_id %d sb_index %d disable %d\n", |
| 4563 | port, fw_sb_id, sb_index, disable); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 4564 | } |
| 4565 | |
| 4566 | void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id, |
| 4567 | u8 sb_index, u8 disable, u16 usec) |
| 4568 | { |
| 4569 | int port = BP_PORT(bp); |
| 4570 | u8 ticks = usec / BNX2X_BTR; |
| 4571 | |
| 4572 | storm_memset_hc_timeout(bp, port, fw_sb_id, sb_index, ticks); |
| 4573 | |
| 4574 | disable = disable ? 1 : (usec ? 0 : 1); |
| 4575 | storm_memset_hc_disable(bp, port, fw_sb_id, sb_index, disable); |
| 4576 | } |