Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1 | /* bnx2x_cmn.c: Broadcom Everest network driver. |
| 2 | * |
Dmitry Kravkov | 5de9240 | 2011-05-04 23:51:13 +0000 | [diff] [blame] | 3 | * Copyright (c) 2007-2011 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> |
Dmitry Kravkov | 6891dd2 | 2010-08-03 21:49:40 +0000 | [diff] [blame] | 26 | #include <linux/firmware.h> |
Paul Gortmaker | c0cba59 | 2011-05-22 11:02:08 +0000 | [diff] [blame] | 27 | #include <linux/prefetch.h> |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 28 | #include "bnx2x_cmn.h" |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 29 | #include "bnx2x_init.h" |
Vladislav Zolotarov | 042181f | 2011-06-14 01:33:39 +0000 | [diff] [blame] | 30 | #include "bnx2x_sp.h" |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 31 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 32 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 33 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 34 | /** |
| 35 | * bnx2x_bz_fp - zero content of the fastpath structure. |
| 36 | * |
| 37 | * @bp: driver handle |
| 38 | * @index: fastpath index to be zeroed |
| 39 | * |
| 40 | * Makes sure the contents of the bp->fp[index].napi is kept |
| 41 | * intact. |
| 42 | */ |
| 43 | static inline void bnx2x_bz_fp(struct bnx2x *bp, int index) |
| 44 | { |
| 45 | struct bnx2x_fastpath *fp = &bp->fp[index]; |
| 46 | struct napi_struct orig_napi = fp->napi; |
| 47 | /* bzero bnx2x_fastpath contents */ |
| 48 | memset(fp, 0, sizeof(*fp)); |
| 49 | |
| 50 | /* Restore the NAPI object as it has been already initialized */ |
| 51 | fp->napi = orig_napi; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 52 | |
| 53 | fp->bp = bp; |
| 54 | fp->index = index; |
| 55 | if (IS_ETH_FP(fp)) |
| 56 | fp->max_cos = bp->max_cos; |
| 57 | else |
| 58 | /* Special queues support only one CoS */ |
| 59 | fp->max_cos = 1; |
| 60 | |
| 61 | /* |
| 62 | * set the tpa flag for each queue. The tpa flag determines the queue |
| 63 | * minimal size so it must be set prior to queue memory allocation |
| 64 | */ |
| 65 | fp->disable_tpa = ((bp->flags & TPA_ENABLE_FLAG) == 0); |
| 66 | |
| 67 | #ifdef BCM_CNIC |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 68 | /* We don't want TPA on an FCoE L2 ring */ |
| 69 | if (IS_FCOE_FP(fp)) |
| 70 | fp->disable_tpa = 1; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 71 | #endif |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | /** |
| 75 | * bnx2x_move_fp - move content of the fastpath structure. |
| 76 | * |
| 77 | * @bp: driver handle |
| 78 | * @from: source FP index |
| 79 | * @to: destination FP index |
| 80 | * |
| 81 | * Makes sure the contents of the bp->fp[to].napi is kept |
| 82 | * intact. |
| 83 | */ |
| 84 | static inline void bnx2x_move_fp(struct bnx2x *bp, int from, int to) |
| 85 | { |
| 86 | struct bnx2x_fastpath *from_fp = &bp->fp[from]; |
| 87 | struct bnx2x_fastpath *to_fp = &bp->fp[to]; |
| 88 | struct napi_struct orig_napi = to_fp->napi; |
| 89 | /* Move bnx2x_fastpath contents */ |
| 90 | memcpy(to_fp, from_fp, sizeof(*to_fp)); |
| 91 | to_fp->index = to; |
| 92 | |
| 93 | /* Restore the NAPI object as it has been already initialized */ |
| 94 | to_fp->napi = orig_napi; |
| 95 | } |
| 96 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 97 | int load_count[2][3] = { {0} }; /* per-path: 0-common, 1-port0, 2-port1 */ |
| 98 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 99 | /* free skb in the packet ring at pos idx |
| 100 | * return idx of last bd freed |
| 101 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 102 | static u16 bnx2x_free_tx_pkt(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 103 | u16 idx) |
| 104 | { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 105 | struct sw_tx_bd *tx_buf = &txdata->tx_buf_ring[idx]; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 106 | struct eth_tx_start_bd *tx_start_bd; |
| 107 | struct eth_tx_bd *tx_data_bd; |
| 108 | struct sk_buff *skb = tx_buf->skb; |
| 109 | u16 bd_idx = TX_BD(tx_buf->first_bd), new_cons; |
| 110 | int nbd; |
| 111 | |
| 112 | /* prefetch skb end pointer to speedup dev_kfree_skb() */ |
| 113 | prefetch(&skb->end); |
| 114 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 115 | DP(BNX2X_MSG_FP, "fp[%d]: pkt_idx %d buff @(%p)->skb %p\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 116 | txdata->txq_index, idx, tx_buf, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 117 | |
| 118 | /* unmap first bd */ |
| 119 | DP(BNX2X_MSG_OFF, "free bd_idx %d\n", bd_idx); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 120 | tx_start_bd = &txdata->tx_desc_ring[bd_idx].start_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 121 | dma_unmap_single(&bp->pdev->dev, BD_UNMAP_ADDR(tx_start_bd), |
Dmitry Kravkov | 4bca60f | 2010-10-06 03:30:27 +0000 | [diff] [blame] | 122 | BD_UNMAP_LEN(tx_start_bd), DMA_TO_DEVICE); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 123 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 124 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 125 | nbd = le16_to_cpu(tx_start_bd->nbd) - 1; |
| 126 | #ifdef BNX2X_STOP_ON_ERROR |
| 127 | if ((nbd - 1) > (MAX_SKB_FRAGS + 2)) { |
| 128 | BNX2X_ERR("BAD nbd!\n"); |
| 129 | bnx2x_panic(); |
| 130 | } |
| 131 | #endif |
| 132 | new_cons = nbd + tx_buf->first_bd; |
| 133 | |
| 134 | /* Get the next bd */ |
| 135 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 136 | |
| 137 | /* Skip a parse bd... */ |
| 138 | --nbd; |
| 139 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 140 | |
| 141 | /* ...and the TSO split header bd since they have no mapping */ |
| 142 | if (tx_buf->flags & BNX2X_TSO_SPLIT_BD) { |
| 143 | --nbd; |
| 144 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 145 | } |
| 146 | |
| 147 | /* now free frags */ |
| 148 | while (nbd > 0) { |
| 149 | |
| 150 | DP(BNX2X_MSG_OFF, "free frag bd_idx %d\n", bd_idx); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 151 | tx_data_bd = &txdata->tx_desc_ring[bd_idx].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 152 | dma_unmap_page(&bp->pdev->dev, BD_UNMAP_ADDR(tx_data_bd), |
| 153 | BD_UNMAP_LEN(tx_data_bd), DMA_TO_DEVICE); |
| 154 | if (--nbd) |
| 155 | bd_idx = TX_BD(NEXT_TX_IDX(bd_idx)); |
| 156 | } |
| 157 | |
| 158 | /* release skb */ |
| 159 | WARN_ON(!skb); |
Vladislav Zolotarov | 4095553 | 2011-05-22 10:06:58 +0000 | [diff] [blame] | 160 | dev_kfree_skb_any(skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 161 | tx_buf->first_bd = 0; |
| 162 | tx_buf->skb = NULL; |
| 163 | |
| 164 | return new_cons; |
| 165 | } |
| 166 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 167 | int bnx2x_tx_int(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 168 | { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 169 | struct netdev_queue *txq; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 170 | u16 hw_cons, sw_cons, bd_cons = txdata->tx_bd_cons; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 171 | |
| 172 | #ifdef BNX2X_STOP_ON_ERROR |
| 173 | if (unlikely(bp->panic)) |
| 174 | return -1; |
| 175 | #endif |
| 176 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 177 | txq = netdev_get_tx_queue(bp->dev, txdata->txq_index); |
| 178 | hw_cons = le16_to_cpu(*txdata->tx_cons_sb); |
| 179 | sw_cons = txdata->tx_pkt_cons; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 180 | |
| 181 | while (sw_cons != hw_cons) { |
| 182 | u16 pkt_cons; |
| 183 | |
| 184 | pkt_cons = TX_BD(sw_cons); |
| 185 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 186 | DP(NETIF_MSG_TX_DONE, "queue[%d]: hw_cons %u sw_cons %u " |
| 187 | " pkt_cons %u\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 188 | txdata->txq_index, hw_cons, sw_cons, pkt_cons); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 189 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 190 | bd_cons = bnx2x_free_tx_pkt(bp, txdata, pkt_cons); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 191 | sw_cons++; |
| 192 | } |
| 193 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 194 | txdata->tx_pkt_cons = sw_cons; |
| 195 | txdata->tx_bd_cons = bd_cons; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 196 | |
| 197 | /* Need to make the tx_bd_cons update visible to start_xmit() |
| 198 | * before checking for netif_tx_queue_stopped(). Without the |
| 199 | * memory barrier, there is a small possibility that |
| 200 | * start_xmit() will miss it and cause the queue to be stopped |
| 201 | * forever. |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 202 | * On the other hand we need an rmb() here to ensure the proper |
| 203 | * ordering of bit testing in the following |
| 204 | * netif_tx_queue_stopped(txq) call. |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 205 | */ |
| 206 | smp_mb(); |
| 207 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 208 | if (unlikely(netif_tx_queue_stopped(txq))) { |
| 209 | /* Taking tx_lock() is needed to prevent reenabling the queue |
| 210 | * while it's empty. This could have happen if rx_action() gets |
| 211 | * suspended in bnx2x_tx_int() after the condition before |
| 212 | * netif_tx_wake_queue(), while tx_action (bnx2x_start_xmit()): |
| 213 | * |
| 214 | * stops the queue->sees fresh tx_bd_cons->releases the queue-> |
| 215 | * sends some packets consuming the whole queue again-> |
| 216 | * stops the queue |
| 217 | */ |
| 218 | |
| 219 | __netif_tx_lock(txq, smp_processor_id()); |
| 220 | |
| 221 | if ((netif_tx_queue_stopped(txq)) && |
| 222 | (bp->state == BNX2X_STATE_OPEN) && |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 223 | (bnx2x_tx_avail(bp, txdata) >= MAX_SKB_FRAGS + 3)) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 224 | netif_tx_wake_queue(txq); |
| 225 | |
| 226 | __netif_tx_unlock(txq); |
| 227 | } |
| 228 | return 0; |
| 229 | } |
| 230 | |
| 231 | static inline void bnx2x_update_last_max_sge(struct bnx2x_fastpath *fp, |
| 232 | u16 idx) |
| 233 | { |
| 234 | u16 last_max = fp->last_max_sge; |
| 235 | |
| 236 | if (SUB_S16(idx, last_max) > 0) |
| 237 | fp->last_max_sge = idx; |
| 238 | } |
| 239 | |
| 240 | static void bnx2x_update_sge_prod(struct bnx2x_fastpath *fp, |
| 241 | struct eth_fast_path_rx_cqe *fp_cqe) |
| 242 | { |
| 243 | struct bnx2x *bp = fp->bp; |
| 244 | u16 sge_len = SGE_PAGE_ALIGN(le16_to_cpu(fp_cqe->pkt_len) - |
| 245 | le16_to_cpu(fp_cqe->len_on_bd)) >> |
| 246 | SGE_PAGE_SHIFT; |
| 247 | u16 last_max, last_elem, first_elem; |
| 248 | u16 delta = 0; |
| 249 | u16 i; |
| 250 | |
| 251 | if (!sge_len) |
| 252 | return; |
| 253 | |
| 254 | /* First mark all used pages */ |
| 255 | for (i = 0; i < sge_len; i++) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 256 | BIT_VEC64_CLEAR_BIT(fp->sge_mask, |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 257 | RX_SGE(le16_to_cpu(fp_cqe->sgl_or_raw_data.sgl[i]))); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 258 | |
| 259 | DP(NETIF_MSG_RX_STATUS, "fp_cqe->sgl[%d] = %d\n", |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 260 | sge_len - 1, le16_to_cpu(fp_cqe->sgl_or_raw_data.sgl[sge_len - 1])); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 261 | |
| 262 | /* Here we assume that the last SGE index is the biggest */ |
| 263 | prefetch((void *)(fp->sge_mask)); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 264 | bnx2x_update_last_max_sge(fp, |
| 265 | le16_to_cpu(fp_cqe->sgl_or_raw_data.sgl[sge_len - 1])); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 266 | |
| 267 | last_max = RX_SGE(fp->last_max_sge); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 268 | last_elem = last_max >> BIT_VEC64_ELEM_SHIFT; |
| 269 | first_elem = RX_SGE(fp->rx_sge_prod) >> BIT_VEC64_ELEM_SHIFT; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 270 | |
| 271 | /* If ring is not full */ |
| 272 | if (last_elem + 1 != first_elem) |
| 273 | last_elem++; |
| 274 | |
| 275 | /* Now update the prod */ |
| 276 | for (i = first_elem; i != last_elem; i = NEXT_SGE_MASK_ELEM(i)) { |
| 277 | if (likely(fp->sge_mask[i])) |
| 278 | break; |
| 279 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 280 | fp->sge_mask[i] = BIT_VEC64_ELEM_ONE_MASK; |
| 281 | delta += BIT_VEC64_ELEM_SZ; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 282 | } |
| 283 | |
| 284 | if (delta > 0) { |
| 285 | fp->rx_sge_prod += delta; |
| 286 | /* clear page-end entries */ |
| 287 | bnx2x_clear_sge_mask_next_elems(fp); |
| 288 | } |
| 289 | |
| 290 | DP(NETIF_MSG_RX_STATUS, |
| 291 | "fp->last_max_sge = %d fp->rx_sge_prod = %d\n", |
| 292 | fp->last_max_sge, fp->rx_sge_prod); |
| 293 | } |
| 294 | |
| 295 | static void bnx2x_tpa_start(struct bnx2x_fastpath *fp, u16 queue, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 296 | struct sk_buff *skb, u16 cons, u16 prod, |
| 297 | struct eth_fast_path_rx_cqe *cqe) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 298 | { |
| 299 | struct bnx2x *bp = fp->bp; |
| 300 | struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons]; |
| 301 | struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod]; |
| 302 | struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod]; |
| 303 | dma_addr_t mapping; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 304 | struct bnx2x_agg_info *tpa_info = &fp->tpa_info[queue]; |
| 305 | struct sw_rx_bd *first_buf = &tpa_info->first_buf; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 306 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 307 | /* print error if current state != stop */ |
| 308 | if (tpa_info->tpa_state != BNX2X_TPA_STOP) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 309 | BNX2X_ERR("start of bin not in stop [%d]\n", queue); |
| 310 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 311 | /* Try to map an empty skb from the aggregation info */ |
| 312 | mapping = dma_map_single(&bp->pdev->dev, |
| 313 | first_buf->skb->data, |
| 314 | fp->rx_buf_size, DMA_FROM_DEVICE); |
| 315 | /* |
| 316 | * ...if it fails - move the skb from the consumer to the producer |
| 317 | * and set the current aggregation state as ERROR to drop it |
| 318 | * when TPA_STOP arrives. |
| 319 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 320 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 321 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 322 | /* Move the BD from the consumer to the producer */ |
| 323 | bnx2x_reuse_rx_skb(fp, cons, prod); |
| 324 | tpa_info->tpa_state = BNX2X_TPA_ERROR; |
| 325 | return; |
| 326 | } |
| 327 | |
| 328 | /* move empty skb from pool to prod */ |
| 329 | prod_rx_buf->skb = first_buf->skb; |
| 330 | dma_unmap_addr_set(prod_rx_buf, mapping, mapping); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 331 | /* point prod_bd to new skb */ |
| 332 | prod_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 333 | prod_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 334 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 335 | /* move partial skb from cons to pool (don't unmap yet) */ |
| 336 | *first_buf = *cons_rx_buf; |
| 337 | |
| 338 | /* mark bin state as START */ |
| 339 | tpa_info->parsing_flags = |
| 340 | le16_to_cpu(cqe->pars_flags.flags); |
| 341 | tpa_info->vlan_tag = le16_to_cpu(cqe->vlan_tag); |
| 342 | tpa_info->tpa_state = BNX2X_TPA_START; |
| 343 | tpa_info->len_on_bd = le16_to_cpu(cqe->len_on_bd); |
| 344 | tpa_info->placement_offset = cqe->placement_offset; |
| 345 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 346 | #ifdef BNX2X_STOP_ON_ERROR |
| 347 | fp->tpa_queue_used |= (1 << queue); |
| 348 | #ifdef _ASM_GENERIC_INT_L64_H |
| 349 | DP(NETIF_MSG_RX_STATUS, "fp->tpa_queue_used = 0x%lx\n", |
| 350 | #else |
| 351 | DP(NETIF_MSG_RX_STATUS, "fp->tpa_queue_used = 0x%llx\n", |
| 352 | #endif |
| 353 | fp->tpa_queue_used); |
| 354 | #endif |
| 355 | } |
| 356 | |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 357 | /* Timestamp option length allowed for TPA aggregation: |
| 358 | * |
| 359 | * nop nop kind length echo val |
| 360 | */ |
| 361 | #define TPA_TSTAMP_OPT_LEN 12 |
| 362 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 363 | * bnx2x_set_lro_mss - calculate the approximate value of the MSS |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 364 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 365 | * @bp: driver handle |
| 366 | * @parsing_flags: parsing flags from the START CQE |
| 367 | * @len_on_bd: total length of the first packet for the |
| 368 | * aggregation. |
| 369 | * |
| 370 | * Approximate value of the MSS for this aggregation calculated using |
| 371 | * the first packet of it. |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 372 | */ |
| 373 | static inline u16 bnx2x_set_lro_mss(struct bnx2x *bp, u16 parsing_flags, |
| 374 | u16 len_on_bd) |
| 375 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 376 | /* |
| 377 | * TPA arrgregation won't have either IP options or TCP options |
| 378 | * other than timestamp or IPv6 extension headers. |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 379 | */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 380 | u16 hdrs_len = ETH_HLEN + sizeof(struct tcphdr); |
| 381 | |
| 382 | if (GET_FLAG(parsing_flags, PARSING_FLAGS_OVER_ETHERNET_PROTOCOL) == |
| 383 | PRS_FLAG_OVERETH_IPV6) |
| 384 | hdrs_len += sizeof(struct ipv6hdr); |
| 385 | else /* IPv4 */ |
| 386 | hdrs_len += sizeof(struct iphdr); |
Vladislav Zolotarov | e4e3c02 | 2011-02-28 03:37:10 +0000 | [diff] [blame] | 387 | |
| 388 | |
| 389 | /* Check if there was a TCP timestamp, if there is it's will |
| 390 | * always be 12 bytes length: nop nop kind length echo val. |
| 391 | * |
| 392 | * Otherwise FW would close the aggregation. |
| 393 | */ |
| 394 | if (parsing_flags & PARSING_FLAGS_TIME_STAMP_EXIST_FLAG) |
| 395 | hdrs_len += TPA_TSTAMP_OPT_LEN; |
| 396 | |
| 397 | return len_on_bd - hdrs_len; |
| 398 | } |
| 399 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 400 | static int bnx2x_fill_frag_skb(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 401 | u16 queue, struct sk_buff *skb, |
| 402 | struct eth_end_agg_rx_cqe *cqe, |
| 403 | u16 cqe_idx) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 404 | { |
| 405 | struct sw_rx_page *rx_pg, old_rx_pg; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 406 | u32 i, frag_len, frag_size, pages; |
| 407 | int err; |
| 408 | int j; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 409 | struct bnx2x_agg_info *tpa_info = &fp->tpa_info[queue]; |
| 410 | u16 len_on_bd = tpa_info->len_on_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 411 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 412 | frag_size = le16_to_cpu(cqe->pkt_len) - len_on_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 413 | pages = SGE_PAGE_ALIGN(frag_size) >> SGE_PAGE_SHIFT; |
| 414 | |
| 415 | /* This is needed in order to enable forwarding support */ |
| 416 | if (frag_size) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 417 | skb_shinfo(skb)->gso_size = bnx2x_set_lro_mss(bp, |
| 418 | tpa_info->parsing_flags, len_on_bd); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 419 | |
| 420 | #ifdef BNX2X_STOP_ON_ERROR |
| 421 | if (pages > min_t(u32, 8, MAX_SKB_FRAGS)*SGE_PAGE_SIZE*PAGES_PER_SGE) { |
| 422 | BNX2X_ERR("SGL length is too long: %d. CQE index is %d\n", |
| 423 | pages, cqe_idx); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 424 | BNX2X_ERR("cqe->pkt_len = %d\n", cqe->pkt_len); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 425 | bnx2x_panic(); |
| 426 | return -EINVAL; |
| 427 | } |
| 428 | #endif |
| 429 | |
| 430 | /* Run through the SGL and compose the fragmented skb */ |
| 431 | for (i = 0, j = 0; i < pages; i += PAGES_PER_SGE, j++) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 432 | 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] | 433 | |
| 434 | /* FW gives the indices of the SGE as if the ring is an array |
| 435 | (meaning that "next" element will consume 2 indices) */ |
| 436 | frag_len = min(frag_size, (u32)(SGE_PAGE_SIZE*PAGES_PER_SGE)); |
| 437 | rx_pg = &fp->rx_page_ring[sge_idx]; |
| 438 | old_rx_pg = *rx_pg; |
| 439 | |
| 440 | /* If we fail to allocate a substitute page, we simply stop |
| 441 | where we are and drop the whole packet */ |
| 442 | err = bnx2x_alloc_rx_sge(bp, fp, sge_idx); |
| 443 | if (unlikely(err)) { |
| 444 | fp->eth_q_stats.rx_skb_alloc_failed++; |
| 445 | return err; |
| 446 | } |
| 447 | |
| 448 | /* Unmap the page as we r going to pass it to the stack */ |
| 449 | dma_unmap_page(&bp->pdev->dev, |
| 450 | dma_unmap_addr(&old_rx_pg, mapping), |
| 451 | SGE_PAGE_SIZE*PAGES_PER_SGE, DMA_FROM_DEVICE); |
| 452 | |
| 453 | /* Add one frag and update the appropriate fields in the skb */ |
| 454 | skb_fill_page_desc(skb, j, old_rx_pg.page, 0, frag_len); |
| 455 | |
| 456 | skb->data_len += frag_len; |
| 457 | skb->truesize += frag_len; |
| 458 | skb->len += frag_len; |
| 459 | |
| 460 | frag_size -= frag_len; |
| 461 | } |
| 462 | |
| 463 | return 0; |
| 464 | } |
| 465 | |
| 466 | static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 467 | u16 queue, struct eth_end_agg_rx_cqe *cqe, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 468 | u16 cqe_idx) |
| 469 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 470 | struct bnx2x_agg_info *tpa_info = &fp->tpa_info[queue]; |
| 471 | struct sw_rx_bd *rx_buf = &tpa_info->first_buf; |
| 472 | u8 pad = tpa_info->placement_offset; |
| 473 | u16 len = tpa_info->len_on_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 474 | struct sk_buff *skb = rx_buf->skb; |
| 475 | /* alloc new skb */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 476 | struct sk_buff *new_skb; |
| 477 | u8 old_tpa_state = tpa_info->tpa_state; |
| 478 | |
| 479 | tpa_info->tpa_state = BNX2X_TPA_STOP; |
| 480 | |
| 481 | /* If we there was an error during the handling of the TPA_START - |
| 482 | * drop this aggregation. |
| 483 | */ |
| 484 | if (old_tpa_state == BNX2X_TPA_ERROR) |
| 485 | goto drop; |
| 486 | |
| 487 | /* Try to allocate the new skb */ |
| 488 | new_skb = netdev_alloc_skb(bp->dev, fp->rx_buf_size); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 489 | |
| 490 | /* Unmap skb in the pool anyway, as we are going to change |
| 491 | pool entry status to BNX2X_TPA_STOP even if new skb allocation |
| 492 | fails. */ |
| 493 | dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(rx_buf, mapping), |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 494 | fp->rx_buf_size, DMA_FROM_DEVICE); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 495 | |
| 496 | if (likely(new_skb)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 497 | prefetch(skb); |
Dmitry Kravkov | 217de5a | 2010-10-06 03:31:20 +0000 | [diff] [blame] | 498 | prefetch(((char *)(skb)) + L1_CACHE_BYTES); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 499 | |
| 500 | #ifdef BNX2X_STOP_ON_ERROR |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 501 | if (pad + len > fp->rx_buf_size) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 502 | BNX2X_ERR("skb_put is about to fail... " |
| 503 | "pad %d len %d rx_buf_size %d\n", |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 504 | pad, len, fp->rx_buf_size); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 505 | bnx2x_panic(); |
| 506 | return; |
| 507 | } |
| 508 | #endif |
| 509 | |
| 510 | skb_reserve(skb, pad); |
| 511 | skb_put(skb, len); |
| 512 | |
| 513 | skb->protocol = eth_type_trans(skb, bp->dev); |
| 514 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 515 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 516 | if (!bnx2x_fill_frag_skb(bp, fp, queue, skb, cqe, cqe_idx)) { |
| 517 | if (tpa_info->parsing_flags & PARSING_FLAGS_VLAN) |
| 518 | __vlan_hwaccel_put_tag(skb, tpa_info->vlan_tag); |
Hao Zheng | 9bcc089 | 2010-10-20 13:56:11 +0000 | [diff] [blame] | 519 | napi_gro_receive(&fp->napi, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 520 | } else { |
| 521 | DP(NETIF_MSG_RX_STATUS, "Failed to allocate new pages" |
| 522 | " - dropping packet!\n"); |
Vladislav Zolotarov | 4095553 | 2011-05-22 10:06:58 +0000 | [diff] [blame] | 523 | dev_kfree_skb_any(skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 524 | } |
| 525 | |
| 526 | |
| 527 | /* put new skb in bin */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 528 | rx_buf->skb = new_skb; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 529 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 530 | return; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 531 | } |
| 532 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 533 | drop: |
| 534 | /* drop the packet and keep the buffer in the bin */ |
| 535 | DP(NETIF_MSG_RX_STATUS, |
| 536 | "Failed to allocate or map a new skb - dropping packet!\n"); |
| 537 | fp->eth_q_stats.rx_skb_alloc_failed++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 538 | } |
| 539 | |
| 540 | /* Set Toeplitz hash value in the skb using the value from the |
| 541 | * CQE (calculated by HW). |
| 542 | */ |
| 543 | static inline void bnx2x_set_skb_rxhash(struct bnx2x *bp, union eth_rx_cqe *cqe, |
| 544 | struct sk_buff *skb) |
| 545 | { |
| 546 | /* Set Toeplitz hash from CQE */ |
| 547 | if ((bp->dev->features & NETIF_F_RXHASH) && |
| 548 | (cqe->fast_path_cqe.status_flags & |
| 549 | ETH_FAST_PATH_RX_CQE_RSS_HASH_FLG)) |
| 550 | skb->rxhash = |
| 551 | le32_to_cpu(cqe->fast_path_cqe.rss_hash_result); |
| 552 | } |
| 553 | |
| 554 | int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) |
| 555 | { |
| 556 | struct bnx2x *bp = fp->bp; |
| 557 | u16 bd_cons, bd_prod, bd_prod_fw, comp_ring_cons; |
| 558 | u16 hw_comp_cons, sw_comp_cons, sw_comp_prod; |
| 559 | int rx_pkt = 0; |
| 560 | |
| 561 | #ifdef BNX2X_STOP_ON_ERROR |
| 562 | if (unlikely(bp->panic)) |
| 563 | return 0; |
| 564 | #endif |
| 565 | |
| 566 | /* CQ "next element" is of the size of the regular element, |
| 567 | that's why it's ok here */ |
| 568 | hw_comp_cons = le16_to_cpu(*fp->rx_cons_sb); |
| 569 | if ((hw_comp_cons & MAX_RCQ_DESC_CNT) == MAX_RCQ_DESC_CNT) |
| 570 | hw_comp_cons++; |
| 571 | |
| 572 | bd_cons = fp->rx_bd_cons; |
| 573 | bd_prod = fp->rx_bd_prod; |
| 574 | bd_prod_fw = bd_prod; |
| 575 | sw_comp_cons = fp->rx_comp_cons; |
| 576 | sw_comp_prod = fp->rx_comp_prod; |
| 577 | |
| 578 | /* Memory barrier necessary as speculative reads of the rx |
| 579 | * buffer can be ahead of the index in the status block |
| 580 | */ |
| 581 | rmb(); |
| 582 | |
| 583 | DP(NETIF_MSG_RX_STATUS, |
| 584 | "queue[%d]: hw_comp_cons %u sw_comp_cons %u\n", |
| 585 | fp->index, hw_comp_cons, sw_comp_cons); |
| 586 | |
| 587 | while (sw_comp_cons != hw_comp_cons) { |
| 588 | struct sw_rx_bd *rx_buf = NULL; |
| 589 | struct sk_buff *skb; |
| 590 | union eth_rx_cqe *cqe; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 591 | struct eth_fast_path_rx_cqe *cqe_fp; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 592 | u8 cqe_fp_flags; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 593 | enum eth_rx_cqe_type cqe_fp_type; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 594 | u16 len, pad; |
| 595 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 596 | #ifdef BNX2X_STOP_ON_ERROR |
| 597 | if (unlikely(bp->panic)) |
| 598 | return 0; |
| 599 | #endif |
| 600 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 601 | comp_ring_cons = RCQ_BD(sw_comp_cons); |
| 602 | bd_prod = RX_BD(bd_prod); |
| 603 | bd_cons = RX_BD(bd_cons); |
| 604 | |
| 605 | /* Prefetch the page containing the BD descriptor |
| 606 | at producer's index. It will be needed when new skb is |
| 607 | allocated */ |
| 608 | prefetch((void *)(PAGE_ALIGN((unsigned long) |
| 609 | (&fp->rx_desc_ring[bd_prod])) - |
| 610 | PAGE_SIZE + 1)); |
| 611 | |
| 612 | cqe = &fp->rx_comp_ring[comp_ring_cons]; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 613 | cqe_fp = &cqe->fast_path_cqe; |
| 614 | cqe_fp_flags = cqe_fp->type_error_flags; |
| 615 | cqe_fp_type = cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 616 | |
| 617 | DP(NETIF_MSG_RX_STATUS, "CQE type %x err %x status %x" |
| 618 | " queue %x vlan %x len %u\n", CQE_TYPE(cqe_fp_flags), |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 619 | cqe_fp_flags, cqe_fp->status_flags, |
| 620 | le32_to_cpu(cqe_fp->rss_hash_result), |
| 621 | le16_to_cpu(cqe_fp->vlan_tag), le16_to_cpu(cqe_fp->pkt_len)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 622 | |
| 623 | /* is this a slowpath msg? */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 624 | if (unlikely(CQE_TYPE_SLOW(cqe_fp_type))) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 625 | bnx2x_sp_event(fp, cqe); |
| 626 | goto next_cqe; |
| 627 | |
| 628 | /* this is an rx packet */ |
| 629 | } else { |
| 630 | rx_buf = &fp->rx_buf_ring[bd_cons]; |
| 631 | skb = rx_buf->skb; |
| 632 | prefetch(skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 633 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 634 | if (!CQE_TYPE_FAST(cqe_fp_type)) { |
| 635 | #ifdef BNX2X_STOP_ON_ERROR |
| 636 | /* sanity check */ |
| 637 | if (fp->disable_tpa && |
| 638 | (CQE_TYPE_START(cqe_fp_type) || |
| 639 | CQE_TYPE_STOP(cqe_fp_type))) |
| 640 | BNX2X_ERR("START/STOP packet while " |
| 641 | "disable_tpa type %x\n", |
| 642 | CQE_TYPE(cqe_fp_type)); |
| 643 | #endif |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 644 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 645 | if (CQE_TYPE_START(cqe_fp_type)) { |
| 646 | u16 queue = cqe_fp->queue_index; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 647 | DP(NETIF_MSG_RX_STATUS, |
| 648 | "calling tpa_start on queue %d\n", |
| 649 | queue); |
| 650 | |
| 651 | bnx2x_tpa_start(fp, queue, skb, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 652 | bd_cons, bd_prod, |
| 653 | cqe_fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 654 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 655 | /* Set Toeplitz hash for LRO skb */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 656 | bnx2x_set_skb_rxhash(bp, cqe, skb); |
| 657 | |
| 658 | goto next_rx; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 659 | |
| 660 | } else { |
| 661 | u16 queue = |
| 662 | cqe->end_agg_cqe.queue_index; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 663 | DP(NETIF_MSG_RX_STATUS, |
| 664 | "calling tpa_stop on queue %d\n", |
| 665 | queue); |
| 666 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 667 | bnx2x_tpa_stop(bp, fp, queue, |
| 668 | &cqe->end_agg_cqe, |
| 669 | comp_ring_cons); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 670 | #ifdef BNX2X_STOP_ON_ERROR |
| 671 | if (bp->panic) |
| 672 | return 0; |
| 673 | #endif |
| 674 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 675 | bnx2x_update_sge_prod(fp, cqe_fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 676 | goto next_cqe; |
| 677 | } |
| 678 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 679 | /* non TPA */ |
| 680 | len = le16_to_cpu(cqe_fp->pkt_len); |
| 681 | pad = cqe_fp->placement_offset; |
Vladislav Zolotarov | 9924caf | 2011-07-19 01:37:42 +0000 | [diff] [blame] | 682 | dma_sync_single_for_cpu(&bp->pdev->dev, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 683 | dma_unmap_addr(rx_buf, mapping), |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 684 | pad + RX_COPY_THRESH, |
| 685 | DMA_FROM_DEVICE); |
Dmitry Kravkov | 217de5a | 2010-10-06 03:31:20 +0000 | [diff] [blame] | 686 | prefetch(((char *)(skb)) + L1_CACHE_BYTES); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 687 | |
| 688 | /* is this an error packet? */ |
| 689 | if (unlikely(cqe_fp_flags & ETH_RX_ERROR_FALGS)) { |
| 690 | DP(NETIF_MSG_RX_ERR, |
| 691 | "ERROR flags %x rx packet %u\n", |
| 692 | cqe_fp_flags, sw_comp_cons); |
| 693 | fp->eth_q_stats.rx_err_discard_pkt++; |
| 694 | goto reuse_rx; |
| 695 | } |
| 696 | |
| 697 | /* Since we don't have a jumbo ring |
| 698 | * copy small packets if mtu > 1500 |
| 699 | */ |
| 700 | if ((bp->dev->mtu > ETH_MAX_PACKET_SIZE) && |
| 701 | (len <= RX_COPY_THRESH)) { |
| 702 | struct sk_buff *new_skb; |
| 703 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 704 | new_skb = netdev_alloc_skb(bp->dev, len + pad); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 705 | if (new_skb == NULL) { |
| 706 | DP(NETIF_MSG_RX_ERR, |
| 707 | "ERROR packet dropped " |
| 708 | "because of alloc failure\n"); |
| 709 | fp->eth_q_stats.rx_skb_alloc_failed++; |
| 710 | goto reuse_rx; |
| 711 | } |
| 712 | |
| 713 | /* aligned copy */ |
| 714 | skb_copy_from_linear_data_offset(skb, pad, |
| 715 | new_skb->data + pad, len); |
| 716 | skb_reserve(new_skb, pad); |
| 717 | skb_put(new_skb, len); |
| 718 | |
Dmitry Kravkov | 749a850 | 2010-10-06 03:29:05 +0000 | [diff] [blame] | 719 | bnx2x_reuse_rx_skb(fp, bd_cons, bd_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 720 | |
| 721 | skb = new_skb; |
| 722 | |
| 723 | } else |
| 724 | if (likely(bnx2x_alloc_rx_skb(bp, fp, bd_prod) == 0)) { |
| 725 | dma_unmap_single(&bp->pdev->dev, |
| 726 | dma_unmap_addr(rx_buf, mapping), |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 727 | fp->rx_buf_size, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 728 | DMA_FROM_DEVICE); |
| 729 | skb_reserve(skb, pad); |
| 730 | skb_put(skb, len); |
| 731 | |
| 732 | } else { |
| 733 | DP(NETIF_MSG_RX_ERR, |
| 734 | "ERROR packet dropped because " |
| 735 | "of alloc failure\n"); |
| 736 | fp->eth_q_stats.rx_skb_alloc_failed++; |
| 737 | reuse_rx: |
Dmitry Kravkov | 749a850 | 2010-10-06 03:29:05 +0000 | [diff] [blame] | 738 | bnx2x_reuse_rx_skb(fp, bd_cons, bd_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 739 | goto next_rx; |
| 740 | } |
| 741 | |
| 742 | skb->protocol = eth_type_trans(skb, bp->dev); |
| 743 | |
| 744 | /* Set Toeplitz hash for a none-LRO skb */ |
| 745 | bnx2x_set_skb_rxhash(bp, cqe, skb); |
| 746 | |
Eric Dumazet | bc8acf2 | 2010-09-02 13:07:41 -0700 | [diff] [blame] | 747 | skb_checksum_none_assert(skb); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 748 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 749 | if (bp->dev->features & NETIF_F_RXCSUM) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 750 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 751 | if (likely(BNX2X_RX_CSUM_OK(cqe))) |
| 752 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 753 | else |
| 754 | fp->eth_q_stats.hw_csum_err++; |
| 755 | } |
| 756 | } |
| 757 | |
| 758 | skb_record_rx_queue(skb, fp->index); |
| 759 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 760 | if (le16_to_cpu(cqe_fp->pars_flags.flags) & |
| 761 | PARSING_FLAGS_VLAN) |
Hao Zheng | 9bcc089 | 2010-10-20 13:56:11 +0000 | [diff] [blame] | 762 | __vlan_hwaccel_put_tag(skb, |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 763 | le16_to_cpu(cqe_fp->vlan_tag)); |
Hao Zheng | 9bcc089 | 2010-10-20 13:56:11 +0000 | [diff] [blame] | 764 | napi_gro_receive(&fp->napi, skb); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 765 | |
| 766 | |
| 767 | next_rx: |
| 768 | rx_buf->skb = NULL; |
| 769 | |
| 770 | bd_cons = NEXT_RX_IDX(bd_cons); |
| 771 | bd_prod = NEXT_RX_IDX(bd_prod); |
| 772 | bd_prod_fw = NEXT_RX_IDX(bd_prod_fw); |
| 773 | rx_pkt++; |
| 774 | next_cqe: |
| 775 | sw_comp_prod = NEXT_RCQ_IDX(sw_comp_prod); |
| 776 | sw_comp_cons = NEXT_RCQ_IDX(sw_comp_cons); |
| 777 | |
| 778 | if (rx_pkt == budget) |
| 779 | break; |
| 780 | } /* while */ |
| 781 | |
| 782 | fp->rx_bd_cons = bd_cons; |
| 783 | fp->rx_bd_prod = bd_prod_fw; |
| 784 | fp->rx_comp_cons = sw_comp_cons; |
| 785 | fp->rx_comp_prod = sw_comp_prod; |
| 786 | |
| 787 | /* Update producers */ |
| 788 | bnx2x_update_rx_prod(bp, fp, bd_prod_fw, sw_comp_prod, |
| 789 | fp->rx_sge_prod); |
| 790 | |
| 791 | fp->rx_pkt += rx_pkt; |
| 792 | fp->rx_calls++; |
| 793 | |
| 794 | return rx_pkt; |
| 795 | } |
| 796 | |
| 797 | static irqreturn_t bnx2x_msix_fp_int(int irq, void *fp_cookie) |
| 798 | { |
| 799 | struct bnx2x_fastpath *fp = fp_cookie; |
| 800 | struct bnx2x *bp = fp->bp; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 801 | u8 cos; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 802 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 803 | DP(BNX2X_MSG_FP, "got an MSI-X interrupt on IDX:SB " |
| 804 | "[fp %d fw_sd %d igusb %d]\n", |
| 805 | fp->index, fp->fw_sb_id, fp->igu_sb_id); |
| 806 | 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] | 807 | |
| 808 | #ifdef BNX2X_STOP_ON_ERROR |
| 809 | if (unlikely(bp->panic)) |
| 810 | return IRQ_HANDLED; |
| 811 | #endif |
| 812 | |
| 813 | /* Handle Rx and Tx according to MSI-X vector */ |
| 814 | prefetch(fp->rx_cons_sb); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 815 | |
| 816 | for_each_cos_in_tx_queue(fp, cos) |
| 817 | prefetch(fp->txdata[cos].tx_cons_sb); |
| 818 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 819 | prefetch(&fp->sb_running_index[SM_RX_ID]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 820 | napi_schedule(&bnx2x_fp(bp, fp->index, napi)); |
| 821 | |
| 822 | return IRQ_HANDLED; |
| 823 | } |
| 824 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 825 | /* HW Lock for shared dual port PHYs */ |
| 826 | void bnx2x_acquire_phy_lock(struct bnx2x *bp) |
| 827 | { |
| 828 | mutex_lock(&bp->port.phy_mutex); |
| 829 | |
| 830 | if (bp->port.need_hw_lock) |
| 831 | bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_MDIO); |
| 832 | } |
| 833 | |
| 834 | void bnx2x_release_phy_lock(struct bnx2x *bp) |
| 835 | { |
| 836 | if (bp->port.need_hw_lock) |
| 837 | bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_MDIO); |
| 838 | |
| 839 | mutex_unlock(&bp->port.phy_mutex); |
| 840 | } |
| 841 | |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 842 | /* calculates MF speed according to current linespeed and MF configuration */ |
| 843 | u16 bnx2x_get_mf_speed(struct bnx2x *bp) |
| 844 | { |
| 845 | u16 line_speed = bp->link_vars.line_speed; |
| 846 | if (IS_MF(bp)) { |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 847 | u16 maxCfg = bnx2x_extract_max_cfg(bp, |
| 848 | bp->mf_config[BP_VN(bp)]); |
| 849 | |
| 850 | /* Calculate the current MAX line speed limit for the MF |
| 851 | * devices |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 852 | */ |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 853 | if (IS_MF_SI(bp)) |
| 854 | line_speed = (line_speed * maxCfg) / 100; |
| 855 | else { /* SD mode */ |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 856 | u16 vn_max_rate = maxCfg * 100; |
| 857 | |
| 858 | if (vn_max_rate < line_speed) |
| 859 | line_speed = vn_max_rate; |
Dmitry Kravkov | faa6fcb | 2011-02-28 03:37:20 +0000 | [diff] [blame] | 860 | } |
Dmitry Kravkov | 0793f83f | 2010-12-01 12:39:28 -0800 | [diff] [blame] | 861 | } |
| 862 | |
| 863 | return line_speed; |
| 864 | } |
| 865 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 866 | /** |
| 867 | * bnx2x_fill_report_data - fill link report data to report |
| 868 | * |
| 869 | * @bp: driver handle |
| 870 | * @data: link state to update |
| 871 | * |
| 872 | * It uses a none-atomic bit operations because is called under the mutex. |
| 873 | */ |
| 874 | static inline void bnx2x_fill_report_data(struct bnx2x *bp, |
| 875 | struct bnx2x_link_report_data *data) |
| 876 | { |
| 877 | u16 line_speed = bnx2x_get_mf_speed(bp); |
| 878 | |
| 879 | memset(data, 0, sizeof(*data)); |
| 880 | |
| 881 | /* Fill the report data: efective line speed */ |
| 882 | data->line_speed = line_speed; |
| 883 | |
| 884 | /* Link is down */ |
| 885 | if (!bp->link_vars.link_up || (bp->flags & MF_FUNC_DIS)) |
| 886 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 887 | &data->link_report_flags); |
| 888 | |
| 889 | /* Full DUPLEX */ |
| 890 | if (bp->link_vars.duplex == DUPLEX_FULL) |
| 891 | __set_bit(BNX2X_LINK_REPORT_FD, &data->link_report_flags); |
| 892 | |
| 893 | /* Rx Flow Control is ON */ |
| 894 | if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_RX) |
| 895 | __set_bit(BNX2X_LINK_REPORT_RX_FC_ON, &data->link_report_flags); |
| 896 | |
| 897 | /* Tx Flow Control is ON */ |
| 898 | if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX) |
| 899 | __set_bit(BNX2X_LINK_REPORT_TX_FC_ON, &data->link_report_flags); |
| 900 | } |
| 901 | |
| 902 | /** |
| 903 | * bnx2x_link_report - report link status to OS. |
| 904 | * |
| 905 | * @bp: driver handle |
| 906 | * |
| 907 | * Calls the __bnx2x_link_report() under the same locking scheme |
| 908 | * as a link/PHY state managing code to ensure a consistent link |
| 909 | * reporting. |
| 910 | */ |
| 911 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 912 | void bnx2x_link_report(struct bnx2x *bp) |
| 913 | { |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 914 | bnx2x_acquire_phy_lock(bp); |
| 915 | __bnx2x_link_report(bp); |
| 916 | bnx2x_release_phy_lock(bp); |
| 917 | } |
| 918 | |
| 919 | /** |
| 920 | * __bnx2x_link_report - report link status to OS. |
| 921 | * |
| 922 | * @bp: driver handle |
| 923 | * |
| 924 | * None atomic inmlementation. |
| 925 | * Should be called under the phy_lock. |
| 926 | */ |
| 927 | void __bnx2x_link_report(struct bnx2x *bp) |
| 928 | { |
| 929 | struct bnx2x_link_report_data cur_data; |
| 930 | |
| 931 | /* reread mf_cfg */ |
| 932 | if (!CHIP_IS_E1(bp)) |
| 933 | bnx2x_read_mf_cfg(bp); |
| 934 | |
| 935 | /* Read the current link report info */ |
| 936 | bnx2x_fill_report_data(bp, &cur_data); |
| 937 | |
| 938 | /* Don't report link down or exactly the same link status twice */ |
| 939 | if (!memcmp(&cur_data, &bp->last_reported_link, sizeof(cur_data)) || |
| 940 | (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 941 | &bp->last_reported_link.link_report_flags) && |
| 942 | test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 943 | &cur_data.link_report_flags))) |
| 944 | return; |
| 945 | |
| 946 | bp->link_cnt++; |
| 947 | |
| 948 | /* We are going to report a new link parameters now - |
| 949 | * remember the current data for the next time. |
| 950 | */ |
| 951 | memcpy(&bp->last_reported_link, &cur_data, sizeof(cur_data)); |
| 952 | |
| 953 | if (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 954 | &cur_data.link_report_flags)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 955 | netif_carrier_off(bp->dev); |
| 956 | netdev_err(bp->dev, "NIC Link is Down\n"); |
| 957 | return; |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 958 | } else { |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 959 | const char *duplex; |
| 960 | const char *flow; |
| 961 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 962 | netif_carrier_on(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 963 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 964 | if (test_and_clear_bit(BNX2X_LINK_REPORT_FD, |
| 965 | &cur_data.link_report_flags)) |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 966 | duplex = "full"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 967 | else |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 968 | duplex = "half"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 969 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 970 | /* Handle the FC at the end so that only these flags would be |
| 971 | * possibly set. This way we may easily check if there is no FC |
| 972 | * enabled. |
| 973 | */ |
| 974 | if (cur_data.link_report_flags) { |
| 975 | if (test_bit(BNX2X_LINK_REPORT_RX_FC_ON, |
| 976 | &cur_data.link_report_flags)) { |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 977 | if (test_bit(BNX2X_LINK_REPORT_TX_FC_ON, |
| 978 | &cur_data.link_report_flags)) |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 979 | flow = "ON - receive & transmit"; |
| 980 | else |
| 981 | flow = "ON - receive"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 982 | } else { |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 983 | flow = "ON - transmit"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 984 | } |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 985 | } else { |
| 986 | flow = "none"; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 987 | } |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 988 | netdev_info(bp->dev, "NIC Link is Up, %d Mbps %s duplex, Flow control: %s\n", |
| 989 | cur_data.line_speed, duplex, flow); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 990 | } |
| 991 | } |
| 992 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 993 | void bnx2x_init_rx_rings(struct bnx2x *bp) |
| 994 | { |
| 995 | int func = BP_FUNC(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 996 | u16 ring_prod; |
| 997 | int i, j; |
| 998 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 999 | /* Allocate TPA resources */ |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1000 | for_each_rx_queue(bp, j) { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1001 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1002 | |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1003 | DP(NETIF_MSG_IFUP, |
| 1004 | "mtu %d rx_buf_size %d\n", bp->dev->mtu, fp->rx_buf_size); |
| 1005 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1006 | if (!fp->disable_tpa) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1007 | /* Fill the per-aggregtion pool */ |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame^] | 1008 | for (i = 0; i < MAX_AGG_QS(bp); i++) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1009 | struct bnx2x_agg_info *tpa_info = |
| 1010 | &fp->tpa_info[i]; |
| 1011 | struct sw_rx_bd *first_buf = |
| 1012 | &tpa_info->first_buf; |
| 1013 | |
| 1014 | first_buf->skb = netdev_alloc_skb(bp->dev, |
| 1015 | fp->rx_buf_size); |
| 1016 | if (!first_buf->skb) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1017 | BNX2X_ERR("Failed to allocate TPA " |
| 1018 | "skb pool for queue[%d] - " |
| 1019 | "disabling TPA on this " |
| 1020 | "queue!\n", j); |
| 1021 | bnx2x_free_tpa_pool(bp, fp, i); |
| 1022 | fp->disable_tpa = 1; |
| 1023 | break; |
| 1024 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1025 | dma_unmap_addr_set(first_buf, mapping, 0); |
| 1026 | tpa_info->tpa_state = BNX2X_TPA_STOP; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1027 | } |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1028 | |
| 1029 | /* "next page" elements initialization */ |
| 1030 | bnx2x_set_next_page_sgl(fp); |
| 1031 | |
| 1032 | /* set SGEs bit mask */ |
| 1033 | bnx2x_init_sge_ring_bit_mask(fp); |
| 1034 | |
| 1035 | /* Allocate SGEs and initialize the ring elements */ |
| 1036 | for (i = 0, ring_prod = 0; |
| 1037 | i < MAX_RX_SGE_CNT*NUM_RX_SGE_PAGES; i++) { |
| 1038 | |
| 1039 | if (bnx2x_alloc_rx_sge(bp, fp, ring_prod) < 0) { |
| 1040 | BNX2X_ERR("was only able to allocate " |
| 1041 | "%d rx sges\n", i); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1042 | BNX2X_ERR("disabling TPA for " |
| 1043 | "queue[%d]\n", j); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1044 | /* Cleanup already allocated elements */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1045 | bnx2x_free_rx_sge_range(bp, fp, |
| 1046 | ring_prod); |
| 1047 | bnx2x_free_tpa_pool(bp, fp, |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame^] | 1048 | MAX_AGG_QS(bp)); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1049 | fp->disable_tpa = 1; |
| 1050 | ring_prod = 0; |
| 1051 | break; |
| 1052 | } |
| 1053 | ring_prod = NEXT_SGE_IDX(ring_prod); |
| 1054 | } |
| 1055 | |
| 1056 | fp->rx_sge_prod = ring_prod; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1057 | } |
| 1058 | } |
| 1059 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1060 | for_each_rx_queue(bp, j) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1061 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1062 | |
| 1063 | fp->rx_bd_cons = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1064 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1065 | /* Activate BD ring */ |
| 1066 | /* Warning! |
| 1067 | * this will generate an interrupt (to the TSTORM) |
| 1068 | * must only be done after chip is initialized |
| 1069 | */ |
| 1070 | bnx2x_update_rx_prod(bp, fp, fp->rx_bd_prod, fp->rx_comp_prod, |
| 1071 | fp->rx_sge_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1072 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1073 | if (j != 0) |
| 1074 | continue; |
| 1075 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1076 | if (CHIP_IS_E1(bp)) { |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 1077 | REG_WR(bp, BAR_USTRORM_INTMEM + |
| 1078 | USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func), |
| 1079 | U64_LO(fp->rx_comp_mapping)); |
| 1080 | REG_WR(bp, BAR_USTRORM_INTMEM + |
| 1081 | USTORM_MEM_WORKAROUND_ADDRESS_OFFSET(func) + 4, |
| 1082 | U64_HI(fp->rx_comp_mapping)); |
| 1083 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1084 | } |
| 1085 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 1086 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1087 | static void bnx2x_free_tx_skbs(struct bnx2x *bp) |
| 1088 | { |
| 1089 | int i; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1090 | u8 cos; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1091 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1092 | for_each_tx_queue(bp, i) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1093 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1094 | for_each_cos_in_tx_queue(fp, cos) { |
| 1095 | struct bnx2x_fp_txdata *txdata = &fp->txdata[cos]; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1096 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1097 | u16 bd_cons = txdata->tx_bd_cons; |
| 1098 | u16 sw_prod = txdata->tx_pkt_prod; |
| 1099 | u16 sw_cons = txdata->tx_pkt_cons; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1100 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1101 | while (sw_cons != sw_prod) { |
| 1102 | bd_cons = bnx2x_free_tx_pkt(bp, txdata, |
| 1103 | TX_BD(sw_cons)); |
| 1104 | sw_cons++; |
| 1105 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1106 | } |
| 1107 | } |
| 1108 | } |
| 1109 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1110 | static void bnx2x_free_rx_bds(struct bnx2x_fastpath *fp) |
| 1111 | { |
| 1112 | struct bnx2x *bp = fp->bp; |
| 1113 | int i; |
| 1114 | |
| 1115 | /* ring wasn't allocated */ |
| 1116 | if (fp->rx_buf_ring == NULL) |
| 1117 | return; |
| 1118 | |
| 1119 | for (i = 0; i < NUM_RX_BD; i++) { |
| 1120 | struct sw_rx_bd *rx_buf = &fp->rx_buf_ring[i]; |
| 1121 | struct sk_buff *skb = rx_buf->skb; |
| 1122 | |
| 1123 | if (skb == NULL) |
| 1124 | continue; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1125 | dma_unmap_single(&bp->pdev->dev, |
| 1126 | dma_unmap_addr(rx_buf, mapping), |
| 1127 | fp->rx_buf_size, DMA_FROM_DEVICE); |
| 1128 | |
| 1129 | rx_buf->skb = NULL; |
| 1130 | dev_kfree_skb(skb); |
| 1131 | } |
| 1132 | } |
| 1133 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1134 | static void bnx2x_free_rx_skbs(struct bnx2x *bp) |
| 1135 | { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1136 | int j; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1137 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1138 | for_each_rx_queue(bp, j) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1139 | struct bnx2x_fastpath *fp = &bp->fp[j]; |
| 1140 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1141 | bnx2x_free_rx_bds(fp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1142 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1143 | if (!fp->disable_tpa) |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame^] | 1144 | bnx2x_free_tpa_pool(bp, fp, MAX_AGG_QS(bp)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1145 | } |
| 1146 | } |
| 1147 | |
| 1148 | void bnx2x_free_skbs(struct bnx2x *bp) |
| 1149 | { |
| 1150 | bnx2x_free_tx_skbs(bp); |
| 1151 | bnx2x_free_rx_skbs(bp); |
| 1152 | } |
| 1153 | |
Dmitry Kravkov | e3835b9 | 2011-03-06 10:50:44 +0000 | [diff] [blame] | 1154 | void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value) |
| 1155 | { |
| 1156 | /* load old values */ |
| 1157 | u32 mf_cfg = bp->mf_config[BP_VN(bp)]; |
| 1158 | |
| 1159 | if (value != bnx2x_extract_max_cfg(bp, mf_cfg)) { |
| 1160 | /* leave all but MAX value */ |
| 1161 | mf_cfg &= ~FUNC_MF_CFG_MAX_BW_MASK; |
| 1162 | |
| 1163 | /* set new MAX value */ |
| 1164 | mf_cfg |= (value << FUNC_MF_CFG_MAX_BW_SHIFT) |
| 1165 | & FUNC_MF_CFG_MAX_BW_MASK; |
| 1166 | |
| 1167 | bnx2x_fw_command(bp, DRV_MSG_CODE_SET_MF_BW, mf_cfg); |
| 1168 | } |
| 1169 | } |
| 1170 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1171 | /** |
| 1172 | * bnx2x_free_msix_irqs - free previously requested MSI-X IRQ vectors |
| 1173 | * |
| 1174 | * @bp: driver handle |
| 1175 | * @nvecs: number of vectors to be released |
| 1176 | */ |
| 1177 | static void bnx2x_free_msix_irqs(struct bnx2x *bp, int nvecs) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1178 | { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1179 | int i, offset = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1180 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1181 | if (nvecs == offset) |
| 1182 | return; |
| 1183 | free_irq(bp->msix_table[offset].vector, bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1184 | DP(NETIF_MSG_IFDOWN, "released sp irq (%d)\n", |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1185 | bp->msix_table[offset].vector); |
| 1186 | offset++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1187 | #ifdef BCM_CNIC |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1188 | if (nvecs == offset) |
| 1189 | return; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1190 | offset++; |
| 1191 | #endif |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1192 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1193 | for_each_eth_queue(bp, i) { |
| 1194 | if (nvecs == offset) |
| 1195 | return; |
| 1196 | DP(NETIF_MSG_IFDOWN, "about to release fp #%d->%d " |
| 1197 | "irq\n", i, bp->msix_table[offset].vector); |
| 1198 | |
| 1199 | free_irq(bp->msix_table[offset++].vector, &bp->fp[i]); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1200 | } |
| 1201 | } |
| 1202 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1203 | void bnx2x_free_irq(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1204 | { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1205 | if (bp->flags & USING_MSIX_FLAG) |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1206 | bnx2x_free_msix_irqs(bp, BNX2X_NUM_ETH_QUEUES(bp) + |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1207 | CNIC_PRESENT + 1); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1208 | else if (bp->flags & USING_MSI_FLAG) |
| 1209 | free_irq(bp->pdev->irq, bp->dev); |
| 1210 | else |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1211 | free_irq(bp->pdev->irq, bp->dev); |
| 1212 | } |
| 1213 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1214 | int bnx2x_enable_msix(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1215 | { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1216 | int msix_vec = 0, i, rc, req_cnt; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1217 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1218 | bp->msix_table[msix_vec].entry = msix_vec; |
| 1219 | DP(NETIF_MSG_IFUP, "msix_table[0].entry = %d (slowpath)\n", |
| 1220 | bp->msix_table[0].entry); |
| 1221 | msix_vec++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1222 | |
| 1223 | #ifdef BCM_CNIC |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1224 | bp->msix_table[msix_vec].entry = msix_vec; |
| 1225 | DP(NETIF_MSG_IFUP, "msix_table[%d].entry = %d (CNIC)\n", |
| 1226 | bp->msix_table[msix_vec].entry, bp->msix_table[msix_vec].entry); |
| 1227 | msix_vec++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1228 | #endif |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1229 | /* We need separate vectors for ETH queues only (not FCoE) */ |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1230 | for_each_eth_queue(bp, i) { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1231 | bp->msix_table[msix_vec].entry = msix_vec; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1232 | DP(NETIF_MSG_IFUP, "msix_table[%d].entry = %d " |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1233 | "(fastpath #%u)\n", msix_vec, msix_vec, i); |
| 1234 | msix_vec++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1235 | } |
| 1236 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1237 | req_cnt = BNX2X_NUM_ETH_QUEUES(bp) + CNIC_PRESENT + 1; |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1238 | |
| 1239 | rc = pci_enable_msix(bp->pdev, &bp->msix_table[0], req_cnt); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1240 | |
| 1241 | /* |
| 1242 | * reconfigure number of tx/rx queues according to available |
| 1243 | * MSI-X vectors |
| 1244 | */ |
| 1245 | if (rc >= BNX2X_MIN_MSIX_VEC_CNT) { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1246 | /* how less vectors we will have? */ |
| 1247 | int diff = req_cnt - rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1248 | |
| 1249 | DP(NETIF_MSG_IFUP, |
| 1250 | "Trying to use less MSI-X vectors: %d\n", rc); |
| 1251 | |
| 1252 | rc = pci_enable_msix(bp->pdev, &bp->msix_table[0], rc); |
| 1253 | |
| 1254 | if (rc) { |
| 1255 | DP(NETIF_MSG_IFUP, |
| 1256 | "MSI-X is not attainable rc %d\n", rc); |
| 1257 | return rc; |
| 1258 | } |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1259 | /* |
| 1260 | * decrease number of queues by number of unallocated entries |
| 1261 | */ |
| 1262 | bp->num_queues -= diff; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1263 | |
| 1264 | DP(NETIF_MSG_IFUP, "New queue configuration set: %d\n", |
| 1265 | bp->num_queues); |
| 1266 | } else if (rc) { |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1267 | /* fall to INTx if not enough memory */ |
| 1268 | if (rc == -ENOMEM) |
| 1269 | bp->flags |= DISABLE_MSI_FLAG; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1270 | DP(NETIF_MSG_IFUP, "MSI-X is not attainable rc %d\n", rc); |
| 1271 | return rc; |
| 1272 | } |
| 1273 | |
| 1274 | bp->flags |= USING_MSIX_FLAG; |
| 1275 | |
| 1276 | return 0; |
| 1277 | } |
| 1278 | |
| 1279 | static int bnx2x_req_msix_irqs(struct bnx2x *bp) |
| 1280 | { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1281 | int i, rc, offset = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1282 | |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1283 | rc = request_irq(bp->msix_table[offset++].vector, |
| 1284 | bnx2x_msix_sp_int, 0, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1285 | bp->dev->name, bp->dev); |
| 1286 | if (rc) { |
| 1287 | BNX2X_ERR("request sp irq failed\n"); |
| 1288 | return -EBUSY; |
| 1289 | } |
| 1290 | |
| 1291 | #ifdef BCM_CNIC |
| 1292 | offset++; |
| 1293 | #endif |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1294 | for_each_eth_queue(bp, i) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1295 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
| 1296 | snprintf(fp->name, sizeof(fp->name), "%s-fp-%d", |
| 1297 | bp->dev->name, i); |
| 1298 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1299 | rc = request_irq(bp->msix_table[offset].vector, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1300 | bnx2x_msix_fp_int, 0, fp->name, fp); |
| 1301 | if (rc) { |
Dmitry Kravkov | ca92429 | 2011-06-14 01:33:08 +0000 | [diff] [blame] | 1302 | BNX2X_ERR("request fp #%d irq (%d) failed rc %d\n", i, |
| 1303 | bp->msix_table[offset].vector, rc); |
| 1304 | bnx2x_free_msix_irqs(bp, offset); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1305 | return -EBUSY; |
| 1306 | } |
| 1307 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1308 | offset++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1309 | } |
| 1310 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1311 | i = BNX2X_NUM_ETH_QUEUES(bp); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1312 | offset = 1 + CNIC_PRESENT; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1313 | netdev_info(bp->dev, "using MSI-X IRQs: sp %d fp[%d] %d" |
| 1314 | " ... fp[%d] %d\n", |
| 1315 | bp->msix_table[0].vector, |
| 1316 | 0, bp->msix_table[offset].vector, |
| 1317 | i - 1, bp->msix_table[offset + i - 1].vector); |
| 1318 | |
| 1319 | return 0; |
| 1320 | } |
| 1321 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1322 | int bnx2x_enable_msi(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1323 | { |
| 1324 | int rc; |
| 1325 | |
| 1326 | rc = pci_enable_msi(bp->pdev); |
| 1327 | if (rc) { |
| 1328 | DP(NETIF_MSG_IFUP, "MSI is not attainable\n"); |
| 1329 | return -1; |
| 1330 | } |
| 1331 | bp->flags |= USING_MSI_FLAG; |
| 1332 | |
| 1333 | return 0; |
| 1334 | } |
| 1335 | |
| 1336 | static int bnx2x_req_irq(struct bnx2x *bp) |
| 1337 | { |
| 1338 | unsigned long flags; |
| 1339 | int rc; |
| 1340 | |
| 1341 | if (bp->flags & USING_MSI_FLAG) |
| 1342 | flags = 0; |
| 1343 | else |
| 1344 | flags = IRQF_SHARED; |
| 1345 | |
| 1346 | rc = request_irq(bp->pdev->irq, bnx2x_interrupt, flags, |
| 1347 | bp->dev->name, bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1348 | return rc; |
| 1349 | } |
| 1350 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1351 | static inline int bnx2x_setup_irqs(struct bnx2x *bp) |
| 1352 | { |
| 1353 | int rc = 0; |
| 1354 | if (bp->flags & USING_MSIX_FLAG) { |
| 1355 | rc = bnx2x_req_msix_irqs(bp); |
| 1356 | if (rc) |
| 1357 | return rc; |
| 1358 | } else { |
| 1359 | bnx2x_ack_int(bp); |
| 1360 | rc = bnx2x_req_irq(bp); |
| 1361 | if (rc) { |
| 1362 | BNX2X_ERR("IRQ request failed rc %d, aborting\n", rc); |
| 1363 | return rc; |
| 1364 | } |
| 1365 | if (bp->flags & USING_MSI_FLAG) { |
| 1366 | bp->dev->irq = bp->pdev->irq; |
| 1367 | netdev_info(bp->dev, "using MSI IRQ %d\n", |
| 1368 | bp->pdev->irq); |
| 1369 | } |
| 1370 | } |
| 1371 | |
| 1372 | return 0; |
| 1373 | } |
| 1374 | |
| 1375 | static inline void bnx2x_napi_enable(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1376 | { |
| 1377 | int i; |
| 1378 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1379 | for_each_rx_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1380 | napi_enable(&bnx2x_fp(bp, i, napi)); |
| 1381 | } |
| 1382 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1383 | static inline void bnx2x_napi_disable(struct bnx2x *bp) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1384 | { |
| 1385 | int i; |
| 1386 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1387 | for_each_rx_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1388 | napi_disable(&bnx2x_fp(bp, i, napi)); |
| 1389 | } |
| 1390 | |
| 1391 | void bnx2x_netif_start(struct bnx2x *bp) |
| 1392 | { |
Dmitry Kravkov | 4b7ed89 | 2011-06-14 01:32:53 +0000 | [diff] [blame] | 1393 | if (netif_running(bp->dev)) { |
| 1394 | bnx2x_napi_enable(bp); |
| 1395 | bnx2x_int_enable(bp); |
| 1396 | if (bp->state == BNX2X_STATE_OPEN) |
| 1397 | netif_tx_wake_all_queues(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1398 | } |
| 1399 | } |
| 1400 | |
| 1401 | void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw) |
| 1402 | { |
| 1403 | bnx2x_int_disable_sync(bp, disable_hw); |
| 1404 | bnx2x_napi_disable(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1405 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1406 | |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1407 | u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb) |
| 1408 | { |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1409 | struct bnx2x *bp = netdev_priv(dev); |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1410 | |
Dmitry Kravkov | faa2831 | 2011-07-16 13:35:51 -0700 | [diff] [blame] | 1411 | #ifdef BCM_CNIC |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1412 | if (!NO_FCOE(bp)) { |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1413 | struct ethhdr *hdr = (struct ethhdr *)skb->data; |
| 1414 | u16 ether_type = ntohs(hdr->h_proto); |
| 1415 | |
| 1416 | /* Skip VLAN tag if present */ |
| 1417 | if (ether_type == ETH_P_8021Q) { |
| 1418 | struct vlan_ethhdr *vhdr = |
| 1419 | (struct vlan_ethhdr *)skb->data; |
| 1420 | |
| 1421 | ether_type = ntohs(vhdr->h_vlan_encapsulated_proto); |
| 1422 | } |
| 1423 | |
| 1424 | /* If ethertype is FCoE or FIP - use FCoE ring */ |
| 1425 | if ((ether_type == ETH_P_FCOE) || (ether_type == ETH_P_FIP)) |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1426 | return bnx2x_fcoe_tx(bp, txq_index); |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1427 | } |
| 1428 | #endif |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1429 | /* select a non-FCoE queue */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1430 | return __skb_tx_hash(dev, skb, BNX2X_NUM_ETH_QUEUES(bp)); |
Vladislav Zolotarov | 8307fa3 | 2010-12-13 05:44:09 +0000 | [diff] [blame] | 1431 | } |
| 1432 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1433 | void bnx2x_set_num_queues(struct bnx2x *bp) |
| 1434 | { |
| 1435 | switch (bp->multi_mode) { |
| 1436 | case ETH_RSS_MODE_DISABLED: |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1437 | bp->num_queues = 1; |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1438 | break; |
| 1439 | case ETH_RSS_MODE_REGULAR: |
| 1440 | bp->num_queues = bnx2x_calc_num_queues(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1441 | break; |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 1442 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1443 | default: |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1444 | bp->num_queues = 1; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1445 | break; |
| 1446 | } |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1447 | |
| 1448 | /* Add special queues */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1449 | bp->num_queues += NON_ETH_CONTEXT_USE; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1450 | } |
| 1451 | |
David S. Miller | 823dcd2 | 2011-08-20 10:39:12 -0700 | [diff] [blame] | 1452 | /** |
| 1453 | * bnx2x_set_real_num_queues - configure netdev->real_num_[tx,rx]_queues |
| 1454 | * |
| 1455 | * @bp: Driver handle |
| 1456 | * |
| 1457 | * We currently support for at most 16 Tx queues for each CoS thus we will |
| 1458 | * allocate a multiple of 16 for ETH L2 rings according to the value of the |
| 1459 | * bp->max_cos. |
| 1460 | * |
| 1461 | * If there is an FCoE L2 queue the appropriate Tx queue will have the next |
| 1462 | * index after all ETH L2 indices. |
| 1463 | * |
| 1464 | * If the actual number of Tx queues (for each CoS) is less than 16 then there |
| 1465 | * will be the holes at the end of each group of 16 ETh L2 indices (0..15, |
| 1466 | * 16..31,...) with indicies that are not coupled with any real Tx queue. |
| 1467 | * |
| 1468 | * The proper configuration of skb->queue_mapping is handled by |
| 1469 | * bnx2x_select_queue() and __skb_tx_hash(). |
| 1470 | * |
| 1471 | * bnx2x_setup_tc() takes care of the proper TC mappings so that __skb_tx_hash() |
| 1472 | * will return a proper Tx index if TC is enabled (netdev->num_tc > 0). |
| 1473 | */ |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1474 | static inline int bnx2x_set_real_num_queues(struct bnx2x *bp) |
| 1475 | { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1476 | int rc, tx, rx; |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1477 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1478 | tx = MAX_TXQS_PER_COS * bp->max_cos; |
| 1479 | rx = BNX2X_NUM_ETH_QUEUES(bp); |
| 1480 | |
| 1481 | /* account for fcoe queue */ |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1482 | #ifdef BCM_CNIC |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1483 | if (!NO_FCOE(bp)) { |
| 1484 | rx += FCOE_PRESENT; |
| 1485 | tx += FCOE_PRESENT; |
| 1486 | } |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1487 | #endif |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1488 | |
| 1489 | rc = netif_set_real_num_tx_queues(bp->dev, tx); |
| 1490 | if (rc) { |
| 1491 | BNX2X_ERR("Failed to set real number of Tx queues: %d\n", rc); |
| 1492 | return rc; |
| 1493 | } |
| 1494 | rc = netif_set_real_num_rx_queues(bp->dev, rx); |
| 1495 | if (rc) { |
| 1496 | BNX2X_ERR("Failed to set real number of Rx queues: %d\n", rc); |
| 1497 | return rc; |
| 1498 | } |
| 1499 | |
| 1500 | DP(NETIF_MSG_DRV, "Setting real num queues to (tx, rx) (%d, %d)\n", |
| 1501 | tx, rx); |
| 1502 | |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1503 | return rc; |
| 1504 | } |
| 1505 | |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1506 | static inline void bnx2x_set_rx_buf_size(struct bnx2x *bp) |
| 1507 | { |
| 1508 | int i; |
| 1509 | |
| 1510 | for_each_queue(bp, i) { |
| 1511 | struct bnx2x_fastpath *fp = &bp->fp[i]; |
| 1512 | |
| 1513 | /* Always use a mini-jumbo MTU for the FCoE L2 ring */ |
| 1514 | if (IS_FCOE_IDX(i)) |
| 1515 | /* |
| 1516 | * Although there are no IP frames expected to arrive to |
| 1517 | * this ring we still want to add an |
| 1518 | * IP_HEADER_ALIGNMENT_PADDING to prevent a buffer |
| 1519 | * overrun attack. |
| 1520 | */ |
| 1521 | fp->rx_buf_size = |
| 1522 | BNX2X_FCOE_MINI_JUMBO_MTU + ETH_OVREHEAD + |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1523 | BNX2X_FW_RX_ALIGN + IP_HEADER_ALIGNMENT_PADDING; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1524 | else |
| 1525 | fp->rx_buf_size = |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1526 | bp->dev->mtu + ETH_OVREHEAD + |
| 1527 | BNX2X_FW_RX_ALIGN + IP_HEADER_ALIGNMENT_PADDING; |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1528 | } |
| 1529 | } |
| 1530 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1531 | static inline int bnx2x_init_rss_pf(struct bnx2x *bp) |
| 1532 | { |
| 1533 | int i; |
| 1534 | u8 ind_table[T_ETH_INDIRECTION_TABLE_SIZE] = {0}; |
| 1535 | u8 num_eth_queues = BNX2X_NUM_ETH_QUEUES(bp); |
| 1536 | |
| 1537 | /* |
| 1538 | * Prepare the inital contents fo the indirection table if RSS is |
| 1539 | * enabled |
| 1540 | */ |
| 1541 | if (bp->multi_mode != ETH_RSS_MODE_DISABLED) { |
| 1542 | for (i = 0; i < sizeof(ind_table); i++) |
| 1543 | ind_table[i] = |
| 1544 | bp->fp->cl_id + (i % num_eth_queues); |
| 1545 | } |
| 1546 | |
| 1547 | /* |
| 1548 | * For 57710 and 57711 SEARCHER configuration (rss_keys) is |
| 1549 | * per-port, so if explicit configuration is needed , do it only |
| 1550 | * for a PMF. |
| 1551 | * |
| 1552 | * For 57712 and newer on the other hand it's a per-function |
| 1553 | * configuration. |
| 1554 | */ |
| 1555 | return bnx2x_config_rss_pf(bp, ind_table, |
| 1556 | bp->port.pmf || !CHIP_IS_E1x(bp)); |
| 1557 | } |
| 1558 | |
| 1559 | int bnx2x_config_rss_pf(struct bnx2x *bp, u8 *ind_table, bool config_hash) |
| 1560 | { |
| 1561 | struct bnx2x_config_rss_params params = {0}; |
| 1562 | int i; |
| 1563 | |
| 1564 | /* Although RSS is meaningless when there is a single HW queue we |
| 1565 | * still need it enabled in order to have HW Rx hash generated. |
| 1566 | * |
| 1567 | * if (!is_eth_multi(bp)) |
| 1568 | * bp->multi_mode = ETH_RSS_MODE_DISABLED; |
| 1569 | */ |
| 1570 | |
| 1571 | params.rss_obj = &bp->rss_conf_obj; |
| 1572 | |
| 1573 | __set_bit(RAMROD_COMP_WAIT, ¶ms.ramrod_flags); |
| 1574 | |
| 1575 | /* RSS mode */ |
| 1576 | switch (bp->multi_mode) { |
| 1577 | case ETH_RSS_MODE_DISABLED: |
| 1578 | __set_bit(BNX2X_RSS_MODE_DISABLED, ¶ms.rss_flags); |
| 1579 | break; |
| 1580 | case ETH_RSS_MODE_REGULAR: |
| 1581 | __set_bit(BNX2X_RSS_MODE_REGULAR, ¶ms.rss_flags); |
| 1582 | break; |
| 1583 | case ETH_RSS_MODE_VLAN_PRI: |
| 1584 | __set_bit(BNX2X_RSS_MODE_VLAN_PRI, ¶ms.rss_flags); |
| 1585 | break; |
| 1586 | case ETH_RSS_MODE_E1HOV_PRI: |
| 1587 | __set_bit(BNX2X_RSS_MODE_E1HOV_PRI, ¶ms.rss_flags); |
| 1588 | break; |
| 1589 | case ETH_RSS_MODE_IP_DSCP: |
| 1590 | __set_bit(BNX2X_RSS_MODE_IP_DSCP, ¶ms.rss_flags); |
| 1591 | break; |
| 1592 | default: |
| 1593 | BNX2X_ERR("Unknown multi_mode: %d\n", bp->multi_mode); |
| 1594 | return -EINVAL; |
| 1595 | } |
| 1596 | |
| 1597 | /* If RSS is enabled */ |
| 1598 | if (bp->multi_mode != ETH_RSS_MODE_DISABLED) { |
| 1599 | /* RSS configuration */ |
| 1600 | __set_bit(BNX2X_RSS_IPV4, ¶ms.rss_flags); |
| 1601 | __set_bit(BNX2X_RSS_IPV4_TCP, ¶ms.rss_flags); |
| 1602 | __set_bit(BNX2X_RSS_IPV6, ¶ms.rss_flags); |
| 1603 | __set_bit(BNX2X_RSS_IPV6_TCP, ¶ms.rss_flags); |
| 1604 | |
| 1605 | /* Hash bits */ |
| 1606 | params.rss_result_mask = MULTI_MASK; |
| 1607 | |
| 1608 | memcpy(params.ind_table, ind_table, sizeof(params.ind_table)); |
| 1609 | |
| 1610 | if (config_hash) { |
| 1611 | /* RSS keys */ |
| 1612 | for (i = 0; i < sizeof(params.rss_key) / 4; i++) |
| 1613 | params.rss_key[i] = random32(); |
| 1614 | |
| 1615 | __set_bit(BNX2X_RSS_SET_SRCH, ¶ms.rss_flags); |
| 1616 | } |
| 1617 | } |
| 1618 | |
| 1619 | return bnx2x_config_rss(bp, ¶ms); |
| 1620 | } |
| 1621 | |
| 1622 | static inline int bnx2x_init_hw(struct bnx2x *bp, u32 load_code) |
| 1623 | { |
| 1624 | struct bnx2x_func_state_params func_params = {0}; |
| 1625 | |
| 1626 | /* Prepare parameters for function state transitions */ |
| 1627 | __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags); |
| 1628 | |
| 1629 | func_params.f_obj = &bp->func_obj; |
| 1630 | func_params.cmd = BNX2X_F_CMD_HW_INIT; |
| 1631 | |
| 1632 | func_params.params.hw_init.load_phase = load_code; |
| 1633 | |
| 1634 | return bnx2x_func_state_change(bp, &func_params); |
| 1635 | } |
| 1636 | |
| 1637 | /* |
| 1638 | * Cleans the object that have internal lists without sending |
| 1639 | * ramrods. Should be run when interrutps are disabled. |
| 1640 | */ |
| 1641 | static void bnx2x_squeeze_objects(struct bnx2x *bp) |
| 1642 | { |
| 1643 | int rc; |
| 1644 | unsigned long ramrod_flags = 0, vlan_mac_flags = 0; |
| 1645 | struct bnx2x_mcast_ramrod_params rparam = {0}; |
| 1646 | struct bnx2x_vlan_mac_obj *mac_obj = &bp->fp->mac_obj; |
| 1647 | |
| 1648 | /***************** Cleanup MACs' object first *************************/ |
| 1649 | |
| 1650 | /* Wait for completion of requested */ |
| 1651 | __set_bit(RAMROD_COMP_WAIT, &ramrod_flags); |
| 1652 | /* Perform a dry cleanup */ |
| 1653 | __set_bit(RAMROD_DRV_CLR_ONLY, &ramrod_flags); |
| 1654 | |
| 1655 | /* Clean ETH primary MAC */ |
| 1656 | __set_bit(BNX2X_ETH_MAC, &vlan_mac_flags); |
| 1657 | rc = mac_obj->delete_all(bp, &bp->fp->mac_obj, &vlan_mac_flags, |
| 1658 | &ramrod_flags); |
| 1659 | if (rc != 0) |
| 1660 | BNX2X_ERR("Failed to clean ETH MACs: %d\n", rc); |
| 1661 | |
| 1662 | /* Cleanup UC list */ |
| 1663 | vlan_mac_flags = 0; |
| 1664 | __set_bit(BNX2X_UC_LIST_MAC, &vlan_mac_flags); |
| 1665 | rc = mac_obj->delete_all(bp, mac_obj, &vlan_mac_flags, |
| 1666 | &ramrod_flags); |
| 1667 | if (rc != 0) |
| 1668 | BNX2X_ERR("Failed to clean UC list MACs: %d\n", rc); |
| 1669 | |
| 1670 | /***************** Now clean mcast object *****************************/ |
| 1671 | rparam.mcast_obj = &bp->mcast_obj; |
| 1672 | __set_bit(RAMROD_DRV_CLR_ONLY, &rparam.ramrod_flags); |
| 1673 | |
| 1674 | /* Add a DEL command... */ |
| 1675 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_DEL); |
| 1676 | if (rc < 0) |
| 1677 | BNX2X_ERR("Failed to add a new DEL command to a multi-cast " |
| 1678 | "object: %d\n", rc); |
| 1679 | |
| 1680 | /* ...and wait until all pending commands are cleared */ |
| 1681 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); |
| 1682 | while (rc != 0) { |
| 1683 | if (rc < 0) { |
| 1684 | BNX2X_ERR("Failed to clean multi-cast object: %d\n", |
| 1685 | rc); |
| 1686 | return; |
| 1687 | } |
| 1688 | |
| 1689 | rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); |
| 1690 | } |
| 1691 | } |
| 1692 | |
| 1693 | #ifndef BNX2X_STOP_ON_ERROR |
| 1694 | #define LOAD_ERROR_EXIT(bp, label) \ |
| 1695 | do { \ |
| 1696 | (bp)->state = BNX2X_STATE_ERROR; \ |
| 1697 | goto label; \ |
| 1698 | } while (0) |
| 1699 | #else |
| 1700 | #define LOAD_ERROR_EXIT(bp, label) \ |
| 1701 | do { \ |
| 1702 | (bp)->state = BNX2X_STATE_ERROR; \ |
| 1703 | (bp)->panic = 1; \ |
| 1704 | return -EBUSY; \ |
| 1705 | } while (0) |
| 1706 | #endif |
| 1707 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1708 | /* must be called with rtnl_lock */ |
| 1709 | int bnx2x_nic_load(struct bnx2x *bp, int load_mode) |
| 1710 | { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1711 | int port = BP_PORT(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1712 | u32 load_code; |
| 1713 | int i, rc; |
| 1714 | |
| 1715 | #ifdef BNX2X_STOP_ON_ERROR |
| 1716 | if (unlikely(bp->panic)) |
| 1717 | return -EPERM; |
| 1718 | #endif |
| 1719 | |
| 1720 | bp->state = BNX2X_STATE_OPENING_WAIT4_LOAD; |
| 1721 | |
Vladislav Zolotarov | 2ae17f6 | 2011-05-04 23:48:23 +0000 | [diff] [blame] | 1722 | /* Set the initial link reported state to link down */ |
| 1723 | bnx2x_acquire_phy_lock(bp); |
| 1724 | memset(&bp->last_reported_link, 0, sizeof(bp->last_reported_link)); |
| 1725 | __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, |
| 1726 | &bp->last_reported_link.link_report_flags); |
| 1727 | bnx2x_release_phy_lock(bp); |
| 1728 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1729 | /* must be called before memory allocation and HW init */ |
| 1730 | bnx2x_ilt_set_info(bp); |
| 1731 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1732 | /* |
| 1733 | * Zero fastpath structures preserving invariants like napi, which are |
| 1734 | * allocated only once, fp index, max_cos, bp pointer. |
| 1735 | * Also set fp->disable_tpa. |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1736 | */ |
| 1737 | for_each_queue(bp, i) |
| 1738 | bnx2x_bz_fp(bp, i); |
| 1739 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1740 | |
Vladislav Zolotarov | a8c94b9 | 2011-02-06 11:21:02 -0800 | [diff] [blame] | 1741 | /* Set the receive queues buffer size */ |
| 1742 | bnx2x_set_rx_buf_size(bp); |
| 1743 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1744 | if (bnx2x_alloc_mem(bp)) |
| 1745 | return -ENOMEM; |
| 1746 | |
| 1747 | /* As long as bnx2x_alloc_mem() may possibly update |
| 1748 | * bp->num_queues, bnx2x_set_real_num_queues() should always |
| 1749 | * come after it. |
| 1750 | */ |
| 1751 | rc = bnx2x_set_real_num_queues(bp); |
| 1752 | if (rc) { |
| 1753 | BNX2X_ERR("Unable to set real_num_queues\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1754 | LOAD_ERROR_EXIT(bp, load_error0); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 1755 | } |
| 1756 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1757 | /* configure multi cos mappings in kernel. |
| 1758 | * this configuration may be overriden by a multi class queue discipline |
| 1759 | * or by a dcbx negotiation result. |
| 1760 | */ |
| 1761 | bnx2x_setup_tc(bp->dev, bp->max_cos); |
| 1762 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1763 | bnx2x_napi_enable(bp); |
| 1764 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1765 | /* Send LOAD_REQUEST command to MCP |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1766 | * Returns the type of LOAD command: |
| 1767 | * if it is the first port to be initialized |
| 1768 | * common blocks should be initialized, otherwise - not |
| 1769 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1770 | if (!BP_NOMCP(bp)) { |
Yaniv Rosner | a22f078 | 2010-09-07 11:41:20 +0000 | [diff] [blame] | 1771 | load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ, 0); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1772 | if (!load_code) { |
| 1773 | BNX2X_ERR("MCP response failure, aborting\n"); |
| 1774 | rc = -EBUSY; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1775 | LOAD_ERROR_EXIT(bp, load_error1); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1776 | } |
| 1777 | if (load_code == FW_MSG_CODE_DRV_LOAD_REFUSED) { |
| 1778 | rc = -EBUSY; /* other port in diagnostic mode */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1779 | LOAD_ERROR_EXIT(bp, load_error1); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1780 | } |
| 1781 | |
| 1782 | } else { |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 1783 | int path = BP_PATH(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1784 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 1785 | DP(NETIF_MSG_IFUP, "NO MCP - load counts[%d] %d, %d, %d\n", |
| 1786 | path, load_count[path][0], load_count[path][1], |
| 1787 | load_count[path][2]); |
| 1788 | load_count[path][0]++; |
| 1789 | load_count[path][1 + port]++; |
| 1790 | DP(NETIF_MSG_IFUP, "NO MCP - new load counts[%d] %d, %d, %d\n", |
| 1791 | path, load_count[path][0], load_count[path][1], |
| 1792 | load_count[path][2]); |
| 1793 | if (load_count[path][0] == 1) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1794 | load_code = FW_MSG_CODE_DRV_LOAD_COMMON; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 1795 | else if (load_count[path][1 + port] == 1) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1796 | load_code = FW_MSG_CODE_DRV_LOAD_PORT; |
| 1797 | else |
| 1798 | load_code = FW_MSG_CODE_DRV_LOAD_FUNCTION; |
| 1799 | } |
| 1800 | |
| 1801 | if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) || |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 1802 | (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP) || |
Yaniv Rosner | 3deb816 | 2011-06-14 01:34:33 +0000 | [diff] [blame] | 1803 | (load_code == FW_MSG_CODE_DRV_LOAD_PORT)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1804 | bp->port.pmf = 1; |
Yaniv Rosner | 3deb816 | 2011-06-14 01:34:33 +0000 | [diff] [blame] | 1805 | /* |
| 1806 | * We need the barrier to ensure the ordering between the |
| 1807 | * writing to bp->port.pmf here and reading it from the |
| 1808 | * bnx2x_periodic_task(). |
| 1809 | */ |
| 1810 | smp_mb(); |
| 1811 | queue_delayed_work(bnx2x_wq, &bp->period_task, 0); |
| 1812 | } else |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1813 | bp->port.pmf = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 1814 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1815 | DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf); |
| 1816 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1817 | /* Init Function state controlling object */ |
| 1818 | bnx2x__init_func_obj(bp); |
| 1819 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1820 | /* Initialize HW */ |
| 1821 | rc = bnx2x_init_hw(bp, load_code); |
| 1822 | if (rc) { |
| 1823 | BNX2X_ERR("HW init failed, aborting\n"); |
Yaniv Rosner | a22f078 | 2010-09-07 11:41:20 +0000 | [diff] [blame] | 1824 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1825 | LOAD_ERROR_EXIT(bp, load_error2); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1826 | } |
| 1827 | |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1828 | /* Connect to IRQs */ |
| 1829 | rc = bnx2x_setup_irqs(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1830 | if (rc) { |
| 1831 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1832 | LOAD_ERROR_EXIT(bp, load_error2); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1833 | } |
| 1834 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1835 | /* Setup NIC internals and enable interrupts */ |
| 1836 | bnx2x_nic_init(bp, load_code); |
| 1837 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1838 | /* Init per-function objects */ |
| 1839 | bnx2x_init_bp_objs(bp); |
| 1840 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 1841 | if (((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) || |
| 1842 | (load_code == FW_MSG_CODE_DRV_LOAD_COMMON_CHIP)) && |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1843 | (bp->common.shmem2_base)) { |
| 1844 | if (SHMEM2_HAS(bp, dcc_support)) |
| 1845 | SHMEM2_WR(bp, dcc_support, |
| 1846 | (SHMEM_DCC_SUPPORT_DISABLE_ENABLE_PF_TLV | |
| 1847 | SHMEM_DCC_SUPPORT_BANDWIDTH_ALLOCATION_TLV)); |
| 1848 | } |
| 1849 | |
| 1850 | bp->state = BNX2X_STATE_OPENING_WAIT4_PORT; |
| 1851 | rc = bnx2x_func_start(bp); |
| 1852 | if (rc) { |
| 1853 | BNX2X_ERR("Function start failed!\n"); |
Dmitry Kravkov | c636322 | 2011-07-19 01:38:53 +0000 | [diff] [blame] | 1854 | bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1855 | LOAD_ERROR_EXIT(bp, load_error3); |
| 1856 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1857 | |
| 1858 | /* Send LOAD_DONE command to MCP */ |
| 1859 | if (!BP_NOMCP(bp)) { |
Yaniv Rosner | a22f078 | 2010-09-07 11:41:20 +0000 | [diff] [blame] | 1860 | load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_DONE, 0); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1861 | if (!load_code) { |
| 1862 | BNX2X_ERR("MCP response failure, aborting\n"); |
| 1863 | rc = -EBUSY; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1864 | LOAD_ERROR_EXIT(bp, load_error3); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1865 | } |
| 1866 | } |
| 1867 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1868 | rc = bnx2x_setup_leading(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1869 | if (rc) { |
| 1870 | BNX2X_ERR("Setup leading failed!\n"); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1871 | LOAD_ERROR_EXIT(bp, load_error3); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 1872 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1873 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1874 | #ifdef BCM_CNIC |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1875 | /* Enable Timer scan */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1876 | REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 1); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1877 | #endif |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 1878 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1879 | for_each_nondefault_queue(bp, i) { |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1880 | rc = bnx2x_setup_queue(bp, &bp->fp[i], 0); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1881 | if (rc) |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1882 | LOAD_ERROR_EXIT(bp, load_error4); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1883 | } |
| 1884 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1885 | rc = bnx2x_init_rss_pf(bp); |
| 1886 | if (rc) |
| 1887 | LOAD_ERROR_EXIT(bp, load_error4); |
| 1888 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1889 | /* Now when Clients are configured we are ready to work */ |
| 1890 | bp->state = BNX2X_STATE_OPEN; |
| 1891 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1892 | /* Configure a ucast MAC */ |
| 1893 | rc = bnx2x_set_eth_mac(bp, true); |
| 1894 | if (rc) |
| 1895 | LOAD_ERROR_EXIT(bp, load_error4); |
Vladislav Zolotarov | 6e30dd4 | 2011-02-06 11:25:41 -0800 | [diff] [blame] | 1896 | |
Dmitry Kravkov | e3835b9 | 2011-03-06 10:50:44 +0000 | [diff] [blame] | 1897 | if (bp->pending_max) { |
| 1898 | bnx2x_update_max_mf_config(bp, bp->pending_max); |
| 1899 | bp->pending_max = 0; |
| 1900 | } |
| 1901 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1902 | if (bp->port.pmf) |
| 1903 | bnx2x_initial_phy_init(bp, load_mode); |
| 1904 | |
| 1905 | /* Start fast path */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1906 | |
| 1907 | /* Initialize Rx filter. */ |
| 1908 | netif_addr_lock_bh(bp->dev); |
| 1909 | bnx2x_set_rx_mode(bp->dev); |
| 1910 | netif_addr_unlock_bh(bp->dev); |
| 1911 | |
| 1912 | /* Start the Tx */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1913 | switch (load_mode) { |
| 1914 | case LOAD_NORMAL: |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1915 | /* Tx queue should be only reenabled */ |
| 1916 | netif_tx_wake_all_queues(bp->dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1917 | break; |
| 1918 | |
| 1919 | case LOAD_OPEN: |
| 1920 | netif_tx_start_all_queues(bp->dev); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 1921 | smp_mb__after_clear_bit(); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1922 | break; |
| 1923 | |
| 1924 | case LOAD_DIAG: |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1925 | bp->state = BNX2X_STATE_DIAG; |
| 1926 | break; |
| 1927 | |
| 1928 | default: |
| 1929 | break; |
| 1930 | } |
| 1931 | |
| 1932 | if (!bp->port.pmf) |
| 1933 | bnx2x__link_status_update(bp); |
| 1934 | |
| 1935 | /* start the timer */ |
| 1936 | mod_timer(&bp->timer, jiffies + bp->current_interval); |
| 1937 | |
| 1938 | #ifdef BCM_CNIC |
| 1939 | bnx2x_setup_cnic_irq_info(bp); |
| 1940 | if (bp->state == BNX2X_STATE_OPEN) |
| 1941 | bnx2x_cnic_notify(bp, CNIC_CTL_START_CMD); |
| 1942 | #endif |
| 1943 | bnx2x_inc_load_cnt(bp); |
| 1944 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1945 | /* Wait for all pending SP commands to complete */ |
| 1946 | if (!bnx2x_wait_sp_comp(bp, ~0x0UL)) { |
| 1947 | BNX2X_ERR("Timeout waiting for SP elements to complete\n"); |
| 1948 | bnx2x_nic_unload(bp, UNLOAD_CLOSE); |
| 1949 | return -EBUSY; |
| 1950 | } |
Dmitry Kravkov | 6891dd2 | 2010-08-03 21:49:40 +0000 | [diff] [blame] | 1951 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1952 | bnx2x_dcbx_init(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1953 | return 0; |
| 1954 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1955 | #ifndef BNX2X_STOP_ON_ERROR |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1956 | load_error4: |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1957 | #ifdef BCM_CNIC |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1958 | /* Disable Timer scan */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1959 | REG_WR(bp, TM_REG_EN_LINEAR0_TIMER + port*4, 0); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1960 | #endif |
| 1961 | load_error3: |
| 1962 | bnx2x_int_disable_sync(bp, 1); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1963 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1964 | /* Clean queueable objects */ |
| 1965 | bnx2x_squeeze_objects(bp); |
| 1966 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1967 | /* Free SKBs, SGEs, TPA pool and driver internals */ |
| 1968 | bnx2x_free_skbs(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 1969 | for_each_rx_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1970 | bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1971 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1972 | /* Release IRQs */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1973 | bnx2x_free_irq(bp); |
| 1974 | load_error2: |
| 1975 | if (!BP_NOMCP(bp)) { |
| 1976 | bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP, 0); |
| 1977 | bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE, 0); |
| 1978 | } |
| 1979 | |
| 1980 | bp->port.pmf = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1981 | load_error1: |
| 1982 | bnx2x_napi_disable(bp); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 1983 | load_error0: |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1984 | bnx2x_free_mem(bp); |
| 1985 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1986 | return rc; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 1987 | #endif /* ! BNX2X_STOP_ON_ERROR */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1988 | } |
| 1989 | |
| 1990 | /* must be called with rtnl_lock */ |
| 1991 | int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode) |
| 1992 | { |
| 1993 | int i; |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 1994 | bool global = false; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 1995 | |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 1996 | if ((bp->state == BNX2X_STATE_CLOSED) || |
| 1997 | (bp->state == BNX2X_STATE_ERROR)) { |
| 1998 | /* We can get here if the driver has been unloaded |
| 1999 | * during parity error recovery and is either waiting for a |
| 2000 | * leader to complete or for other functions to unload and |
| 2001 | * then ifdown has been issued. In this case we want to |
| 2002 | * unload and let other functions to complete a recovery |
| 2003 | * process. |
| 2004 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2005 | bp->recovery_state = BNX2X_RECOVERY_DONE; |
| 2006 | bp->is_leader = 0; |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2007 | bnx2x_release_leader_lock(bp); |
| 2008 | smp_mb(); |
| 2009 | |
| 2010 | DP(NETIF_MSG_HW, "Releasing a leadership...\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2011 | |
| 2012 | return -EINVAL; |
| 2013 | } |
| 2014 | |
Vladislav Zolotarov | 87b7ba3 | 2011-08-02 01:35:43 -0700 | [diff] [blame] | 2015 | /* |
| 2016 | * It's important to set the bp->state to the value different from |
| 2017 | * BNX2X_STATE_OPEN and only then stop the Tx. Otherwise bnx2x_tx_int() |
| 2018 | * may restart the Tx from the NAPI context (see bnx2x_tx_int()). |
| 2019 | */ |
| 2020 | bp->state = BNX2X_STATE_CLOSING_WAIT4_HALT; |
| 2021 | smp_mb(); |
| 2022 | |
Vladislav Zolotarov | 9505ee3 | 2011-07-19 01:39:41 +0000 | [diff] [blame] | 2023 | /* Stop Tx */ |
| 2024 | bnx2x_tx_disable(bp); |
| 2025 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2026 | #ifdef BCM_CNIC |
| 2027 | bnx2x_cnic_notify(bp, CNIC_CTL_STOP_CMD); |
| 2028 | #endif |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2029 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2030 | bp->rx_mode = BNX2X_RX_MODE_NONE; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2031 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2032 | del_timer_sync(&bp->timer); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2033 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2034 | /* Set ALWAYS_ALIVE bit in shmem */ |
| 2035 | bp->fw_drv_pulse_wr_seq |= DRV_PULSE_ALWAYS_ALIVE; |
| 2036 | |
| 2037 | bnx2x_drv_pulse(bp); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2038 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2039 | bnx2x_stats_handle(bp, STATS_EVENT_STOP); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2040 | |
| 2041 | /* Cleanup the chip if needed */ |
| 2042 | if (unload_mode != UNLOAD_RECOVERY) |
| 2043 | bnx2x_chip_cleanup(bp, unload_mode); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2044 | else { |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2045 | /* Send the UNLOAD_REQUEST to the MCP */ |
| 2046 | bnx2x_send_unload_req(bp, unload_mode); |
| 2047 | |
| 2048 | /* |
| 2049 | * Prevent transactions to host from the functions on the |
| 2050 | * engine that doesn't reset global blocks in case of global |
| 2051 | * attention once gloabl blocks are reset and gates are opened |
| 2052 | * (the engine which leader will perform the recovery |
| 2053 | * last). |
| 2054 | */ |
| 2055 | if (!CHIP_IS_E1x(bp)) |
| 2056 | bnx2x_pf_disable(bp); |
| 2057 | |
| 2058 | /* Disable HW interrupts, NAPI */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2059 | bnx2x_netif_stop(bp, 1); |
| 2060 | |
| 2061 | /* Release IRQs */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2062 | bnx2x_free_irq(bp); |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2063 | |
| 2064 | /* Report UNLOAD_DONE to MCP */ |
| 2065 | bnx2x_send_unload_done(bp); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2066 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2067 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2068 | /* |
| 2069 | * At this stage no more interrupts will arrive so we may safly clean |
| 2070 | * the queueable objects here in case they failed to get cleaned so far. |
| 2071 | */ |
| 2072 | bnx2x_squeeze_objects(bp); |
| 2073 | |
Vladislav Zolotarov | 7961689 | 2011-07-21 07:58:54 +0000 | [diff] [blame] | 2074 | /* There should be no more pending SP commands at this stage */ |
| 2075 | bp->sp_state = 0; |
| 2076 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2077 | bp->port.pmf = 0; |
| 2078 | |
| 2079 | /* Free SKBs, SGEs, TPA pool and driver internals */ |
| 2080 | bnx2x_free_skbs(bp); |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 2081 | for_each_rx_queue(bp, i) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2082 | bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE); |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2083 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2084 | bnx2x_free_mem(bp); |
| 2085 | |
| 2086 | bp->state = BNX2X_STATE_CLOSED; |
| 2087 | |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2088 | /* Check if there are pending parity attentions. If there are - set |
| 2089 | * RECOVERY_IN_PROGRESS. |
| 2090 | */ |
| 2091 | if (bnx2x_chk_parity_attn(bp, &global, false)) { |
| 2092 | bnx2x_set_reset_in_progress(bp); |
| 2093 | |
| 2094 | /* Set RESET_IS_GLOBAL if needed */ |
| 2095 | if (global) |
| 2096 | bnx2x_set_reset_global(bp); |
| 2097 | } |
| 2098 | |
| 2099 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2100 | /* The last driver must disable a "close the gate" if there is no |
| 2101 | * parity attention or "process kill" pending. |
| 2102 | */ |
Vladislav Zolotarov | c9ee920 | 2011-06-14 01:33:51 +0000 | [diff] [blame] | 2103 | if (!bnx2x_dec_load_cnt(bp) && bnx2x_reset_is_done(bp, BP_PATH(bp))) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2104 | bnx2x_disable_close_the_gate(bp); |
| 2105 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2106 | return 0; |
| 2107 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2108 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2109 | int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state) |
| 2110 | { |
| 2111 | u16 pmcsr; |
| 2112 | |
Dmitry Kravkov | adf5f6a | 2010-10-17 23:10:02 +0000 | [diff] [blame] | 2113 | /* If there is no power capability, silently succeed */ |
| 2114 | if (!bp->pm_cap) { |
| 2115 | DP(NETIF_MSG_HW, "No power capability. Breaking.\n"); |
| 2116 | return 0; |
| 2117 | } |
| 2118 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2119 | pci_read_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, &pmcsr); |
| 2120 | |
| 2121 | switch (state) { |
| 2122 | case PCI_D0: |
| 2123 | pci_write_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, |
| 2124 | ((pmcsr & ~PCI_PM_CTRL_STATE_MASK) | |
| 2125 | PCI_PM_CTRL_PME_STATUS)); |
| 2126 | |
| 2127 | if (pmcsr & PCI_PM_CTRL_STATE_MASK) |
| 2128 | /* delay required during transition out of D3hot */ |
| 2129 | msleep(20); |
| 2130 | break; |
| 2131 | |
| 2132 | case PCI_D3hot: |
| 2133 | /* If there are other clients above don't |
| 2134 | shut down the power */ |
| 2135 | if (atomic_read(&bp->pdev->enable_cnt) != 1) |
| 2136 | return 0; |
| 2137 | /* Don't shut down the power for emulation and FPGA */ |
| 2138 | if (CHIP_REV_IS_SLOW(bp)) |
| 2139 | return 0; |
| 2140 | |
| 2141 | pmcsr &= ~PCI_PM_CTRL_STATE_MASK; |
| 2142 | pmcsr |= 3; |
| 2143 | |
| 2144 | if (bp->wol) |
| 2145 | pmcsr |= PCI_PM_CTRL_PME_ENABLE; |
| 2146 | |
| 2147 | pci_write_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, |
| 2148 | pmcsr); |
| 2149 | |
| 2150 | /* No more memory access after this point until |
| 2151 | * device is brought back to D0. |
| 2152 | */ |
| 2153 | break; |
| 2154 | |
| 2155 | default: |
| 2156 | return -EINVAL; |
| 2157 | } |
| 2158 | return 0; |
| 2159 | } |
| 2160 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2161 | /* |
| 2162 | * net_device service functions |
| 2163 | */ |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 2164 | int bnx2x_poll(struct napi_struct *napi, int budget) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2165 | { |
| 2166 | int work_done = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2167 | u8 cos; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2168 | struct bnx2x_fastpath *fp = container_of(napi, struct bnx2x_fastpath, |
| 2169 | napi); |
| 2170 | struct bnx2x *bp = fp->bp; |
| 2171 | |
| 2172 | while (1) { |
| 2173 | #ifdef BNX2X_STOP_ON_ERROR |
| 2174 | if (unlikely(bp->panic)) { |
| 2175 | napi_complete(napi); |
| 2176 | return 0; |
| 2177 | } |
| 2178 | #endif |
| 2179 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2180 | for_each_cos_in_tx_queue(fp, cos) |
| 2181 | if (bnx2x_tx_queue_has_work(&fp->txdata[cos])) |
| 2182 | bnx2x_tx_int(bp, &fp->txdata[cos]); |
| 2183 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2184 | |
| 2185 | if (bnx2x_has_rx_work(fp)) { |
| 2186 | work_done += bnx2x_rx_int(fp, budget - work_done); |
| 2187 | |
| 2188 | /* must not complete if we consumed full budget */ |
| 2189 | if (work_done >= budget) |
| 2190 | break; |
| 2191 | } |
| 2192 | |
| 2193 | /* Fall out from the NAPI loop if needed */ |
| 2194 | if (!(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) { |
Vladislav Zolotarov | ec6ba94 | 2010-12-13 05:44:01 +0000 | [diff] [blame] | 2195 | #ifdef BCM_CNIC |
| 2196 | /* No need to update SB for FCoE L2 ring as long as |
| 2197 | * it's connected to the default SB and the SB |
| 2198 | * has been updated when NAPI was scheduled. |
| 2199 | */ |
| 2200 | if (IS_FCOE_FP(fp)) { |
| 2201 | napi_complete(napi); |
| 2202 | break; |
| 2203 | } |
| 2204 | #endif |
| 2205 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2206 | bnx2x_update_fpsb_idx(fp); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2207 | /* bnx2x_has_rx_work() reads the status block, |
| 2208 | * thus we need to ensure that status block indices |
| 2209 | * have been actually read (bnx2x_update_fpsb_idx) |
| 2210 | * prior to this check (bnx2x_has_rx_work) so that |
| 2211 | * we won't write the "newer" value of the status block |
| 2212 | * to IGU (if there was a DMA right after |
| 2213 | * bnx2x_has_rx_work and if there is no rmb, the memory |
| 2214 | * reading (bnx2x_update_fpsb_idx) may be postponed |
| 2215 | * to right before bnx2x_ack_sb). In this case there |
| 2216 | * will never be another interrupt until there is |
| 2217 | * another update of the status block, while there |
| 2218 | * is still unhandled work. |
| 2219 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2220 | rmb(); |
| 2221 | |
| 2222 | if (!(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) { |
| 2223 | napi_complete(napi); |
| 2224 | /* Re-enable interrupts */ |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2225 | DP(NETIF_MSG_HW, |
| 2226 | "Update index to %d\n", fp->fp_hc_idx); |
| 2227 | bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID, |
| 2228 | le16_to_cpu(fp->fp_hc_idx), |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2229 | IGU_INT_ENABLE, 1); |
| 2230 | break; |
| 2231 | } |
| 2232 | } |
| 2233 | } |
| 2234 | |
| 2235 | return work_done; |
| 2236 | } |
| 2237 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2238 | /* we split the first BD into headers and data BDs |
| 2239 | * to ease the pain of our fellow microcode engineers |
| 2240 | * we use one mapping for both BDs |
| 2241 | * So far this has only been observed to happen |
| 2242 | * in Other Operating Systems(TM) |
| 2243 | */ |
| 2244 | static noinline u16 bnx2x_tx_split(struct bnx2x *bp, |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2245 | struct bnx2x_fp_txdata *txdata, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2246 | struct sw_tx_bd *tx_buf, |
| 2247 | struct eth_tx_start_bd **tx_bd, u16 hlen, |
| 2248 | u16 bd_prod, int nbd) |
| 2249 | { |
| 2250 | struct eth_tx_start_bd *h_tx_bd = *tx_bd; |
| 2251 | struct eth_tx_bd *d_tx_bd; |
| 2252 | dma_addr_t mapping; |
| 2253 | int old_len = le16_to_cpu(h_tx_bd->nbytes); |
| 2254 | |
| 2255 | /* first fix first BD */ |
| 2256 | h_tx_bd->nbd = cpu_to_le16(nbd); |
| 2257 | h_tx_bd->nbytes = cpu_to_le16(hlen); |
| 2258 | |
| 2259 | DP(NETIF_MSG_TX_QUEUED, "TSO split header size is %d " |
| 2260 | "(%x:%x) nbd %d\n", h_tx_bd->nbytes, h_tx_bd->addr_hi, |
| 2261 | h_tx_bd->addr_lo, h_tx_bd->nbd); |
| 2262 | |
| 2263 | /* now get a new data BD |
| 2264 | * (after the pbd) and fill it */ |
| 2265 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2266 | d_tx_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2267 | |
| 2268 | mapping = HILO_U64(le32_to_cpu(h_tx_bd->addr_hi), |
| 2269 | le32_to_cpu(h_tx_bd->addr_lo)) + hlen; |
| 2270 | |
| 2271 | d_tx_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 2272 | d_tx_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 2273 | d_tx_bd->nbytes = cpu_to_le16(old_len - hlen); |
| 2274 | |
| 2275 | /* this marks the BD as one that has no individual mapping */ |
| 2276 | tx_buf->flags |= BNX2X_TSO_SPLIT_BD; |
| 2277 | |
| 2278 | DP(NETIF_MSG_TX_QUEUED, |
| 2279 | "TSO split data size is %d (%x:%x)\n", |
| 2280 | d_tx_bd->nbytes, d_tx_bd->addr_hi, d_tx_bd->addr_lo); |
| 2281 | |
| 2282 | /* update tx_bd */ |
| 2283 | *tx_bd = (struct eth_tx_start_bd *)d_tx_bd; |
| 2284 | |
| 2285 | return bd_prod; |
| 2286 | } |
| 2287 | |
| 2288 | static inline u16 bnx2x_csum_fix(unsigned char *t_header, u16 csum, s8 fix) |
| 2289 | { |
| 2290 | if (fix > 0) |
| 2291 | csum = (u16) ~csum_fold(csum_sub(csum, |
| 2292 | csum_partial(t_header - fix, fix, 0))); |
| 2293 | |
| 2294 | else if (fix < 0) |
| 2295 | csum = (u16) ~csum_fold(csum_add(csum, |
| 2296 | csum_partial(t_header, -fix, 0))); |
| 2297 | |
| 2298 | return swab16(csum); |
| 2299 | } |
| 2300 | |
| 2301 | static inline u32 bnx2x_xmit_type(struct bnx2x *bp, struct sk_buff *skb) |
| 2302 | { |
| 2303 | u32 rc; |
| 2304 | |
| 2305 | if (skb->ip_summed != CHECKSUM_PARTIAL) |
| 2306 | rc = XMIT_PLAIN; |
| 2307 | |
| 2308 | else { |
Hao Zheng | d0d9d8e | 2010-11-11 13:47:58 +0000 | [diff] [blame] | 2309 | if (vlan_get_protocol(skb) == htons(ETH_P_IPV6)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2310 | rc = XMIT_CSUM_V6; |
| 2311 | if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) |
| 2312 | rc |= XMIT_CSUM_TCP; |
| 2313 | |
| 2314 | } else { |
| 2315 | rc = XMIT_CSUM_V4; |
| 2316 | if (ip_hdr(skb)->protocol == IPPROTO_TCP) |
| 2317 | rc |= XMIT_CSUM_TCP; |
| 2318 | } |
| 2319 | } |
| 2320 | |
Vladislav Zolotarov | 5892b9e | 2010-11-28 00:23:35 +0000 | [diff] [blame] | 2321 | if (skb_is_gso_v6(skb)) |
| 2322 | rc |= XMIT_GSO_V6 | XMIT_CSUM_TCP | XMIT_CSUM_V6; |
| 2323 | else if (skb_is_gso(skb)) |
| 2324 | rc |= XMIT_GSO_V4 | XMIT_CSUM_V4 | XMIT_CSUM_TCP; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2325 | |
| 2326 | return rc; |
| 2327 | } |
| 2328 | |
| 2329 | #if (MAX_SKB_FRAGS >= MAX_FETCH_BD - 3) |
| 2330 | /* check if packet requires linearization (packet is too fragmented) |
| 2331 | no need to check fragmentation if page size > 8K (there will be no |
| 2332 | violation to FW restrictions) */ |
| 2333 | static int bnx2x_pkt_req_lin(struct bnx2x *bp, struct sk_buff *skb, |
| 2334 | u32 xmit_type) |
| 2335 | { |
| 2336 | int to_copy = 0; |
| 2337 | int hlen = 0; |
| 2338 | int first_bd_sz = 0; |
| 2339 | |
| 2340 | /* 3 = 1 (for linear data BD) + 2 (for PBD and last BD) */ |
| 2341 | if (skb_shinfo(skb)->nr_frags >= (MAX_FETCH_BD - 3)) { |
| 2342 | |
| 2343 | if (xmit_type & XMIT_GSO) { |
| 2344 | unsigned short lso_mss = skb_shinfo(skb)->gso_size; |
| 2345 | /* Check if LSO packet needs to be copied: |
| 2346 | 3 = 1 (for headers BD) + 2 (for PBD and last BD) */ |
| 2347 | int wnd_size = MAX_FETCH_BD - 3; |
| 2348 | /* Number of windows to check */ |
| 2349 | int num_wnds = skb_shinfo(skb)->nr_frags - wnd_size; |
| 2350 | int wnd_idx = 0; |
| 2351 | int frag_idx = 0; |
| 2352 | u32 wnd_sum = 0; |
| 2353 | |
| 2354 | /* Headers length */ |
| 2355 | hlen = (int)(skb_transport_header(skb) - skb->data) + |
| 2356 | tcp_hdrlen(skb); |
| 2357 | |
| 2358 | /* Amount of data (w/o headers) on linear part of SKB*/ |
| 2359 | first_bd_sz = skb_headlen(skb) - hlen; |
| 2360 | |
| 2361 | wnd_sum = first_bd_sz; |
| 2362 | |
| 2363 | /* Calculate the first sum - it's special */ |
| 2364 | for (frag_idx = 0; frag_idx < wnd_size - 1; frag_idx++) |
| 2365 | wnd_sum += |
| 2366 | skb_shinfo(skb)->frags[frag_idx].size; |
| 2367 | |
| 2368 | /* If there was data on linear skb data - check it */ |
| 2369 | if (first_bd_sz > 0) { |
| 2370 | if (unlikely(wnd_sum < lso_mss)) { |
| 2371 | to_copy = 1; |
| 2372 | goto exit_lbl; |
| 2373 | } |
| 2374 | |
| 2375 | wnd_sum -= first_bd_sz; |
| 2376 | } |
| 2377 | |
| 2378 | /* Others are easier: run through the frag list and |
| 2379 | check all windows */ |
| 2380 | for (wnd_idx = 0; wnd_idx <= num_wnds; wnd_idx++) { |
| 2381 | wnd_sum += |
| 2382 | skb_shinfo(skb)->frags[wnd_idx + wnd_size - 1].size; |
| 2383 | |
| 2384 | if (unlikely(wnd_sum < lso_mss)) { |
| 2385 | to_copy = 1; |
| 2386 | break; |
| 2387 | } |
| 2388 | wnd_sum -= |
| 2389 | skb_shinfo(skb)->frags[wnd_idx].size; |
| 2390 | } |
| 2391 | } else { |
| 2392 | /* in non-LSO too fragmented packet should always |
| 2393 | be linearized */ |
| 2394 | to_copy = 1; |
| 2395 | } |
| 2396 | } |
| 2397 | |
| 2398 | exit_lbl: |
| 2399 | if (unlikely(to_copy)) |
| 2400 | DP(NETIF_MSG_TX_QUEUED, |
| 2401 | "Linearization IS REQUIRED for %s packet. " |
| 2402 | "num_frags %d hlen %d first_bd_sz %d\n", |
| 2403 | (xmit_type & XMIT_GSO) ? "LSO" : "non-LSO", |
| 2404 | skb_shinfo(skb)->nr_frags, hlen, first_bd_sz); |
| 2405 | |
| 2406 | return to_copy; |
| 2407 | } |
| 2408 | #endif |
| 2409 | |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 2410 | static inline void bnx2x_set_pbd_gso_e2(struct sk_buff *skb, u32 *parsing_data, |
| 2411 | u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2412 | { |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 2413 | *parsing_data |= (skb_shinfo(skb)->gso_size << |
| 2414 | ETH_TX_PARSE_BD_E2_LSO_MSS_SHIFT) & |
| 2415 | ETH_TX_PARSE_BD_E2_LSO_MSS; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2416 | if ((xmit_type & XMIT_GSO_V6) && |
| 2417 | (ipv6_hdr(skb)->nexthdr == NEXTHDR_IPV6)) |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 2418 | *parsing_data |= ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2419 | } |
| 2420 | |
| 2421 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 2422 | * bnx2x_set_pbd_gso - update PBD in GSO case. |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2423 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 2424 | * @skb: packet skb |
| 2425 | * @pbd: parse BD |
| 2426 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2427 | */ |
| 2428 | static inline void bnx2x_set_pbd_gso(struct sk_buff *skb, |
| 2429 | struct eth_tx_parse_bd_e1x *pbd, |
| 2430 | u32 xmit_type) |
| 2431 | { |
| 2432 | pbd->lso_mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
| 2433 | pbd->tcp_send_seq = swab32(tcp_hdr(skb)->seq); |
| 2434 | pbd->tcp_flags = pbd_tcp_flags(skb); |
| 2435 | |
| 2436 | if (xmit_type & XMIT_GSO_V4) { |
| 2437 | pbd->ip_id = swab16(ip_hdr(skb)->id); |
| 2438 | pbd->tcp_pseudo_csum = |
| 2439 | swab16(~csum_tcpudp_magic(ip_hdr(skb)->saddr, |
| 2440 | ip_hdr(skb)->daddr, |
| 2441 | 0, IPPROTO_TCP, 0)); |
| 2442 | |
| 2443 | } else |
| 2444 | pbd->tcp_pseudo_csum = |
| 2445 | swab16(~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, |
| 2446 | &ipv6_hdr(skb)->daddr, |
| 2447 | 0, IPPROTO_TCP, 0)); |
| 2448 | |
| 2449 | pbd->global_data |= ETH_TX_PARSE_BD_E1X_PSEUDO_CS_WITHOUT_LEN; |
| 2450 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2451 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2452 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 2453 | * 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] | 2454 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 2455 | * @bp: driver handle |
| 2456 | * @skb: packet skb |
| 2457 | * @parsing_data: data to be updated |
| 2458 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2459 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 2460 | * 57712 related |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2461 | */ |
| 2462 | 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] | 2463 | u32 *parsing_data, u32 xmit_type) |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2464 | { |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 2465 | *parsing_data |= |
| 2466 | ((((u8 *)skb_transport_header(skb) - skb->data) >> 1) << |
| 2467 | ETH_TX_PARSE_BD_E2_TCP_HDR_START_OFFSET_W_SHIFT) & |
| 2468 | ETH_TX_PARSE_BD_E2_TCP_HDR_START_OFFSET_W; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2469 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 2470 | if (xmit_type & XMIT_CSUM_TCP) { |
| 2471 | *parsing_data |= ((tcp_hdrlen(skb) / 4) << |
| 2472 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) & |
| 2473 | ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2474 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 2475 | return skb_transport_header(skb) + tcp_hdrlen(skb) - skb->data; |
| 2476 | } else |
| 2477 | /* We support checksum offload for TCP and UDP only. |
| 2478 | * No need to pass the UDP header length - it's a constant. |
| 2479 | */ |
| 2480 | return skb_transport_header(skb) + |
| 2481 | sizeof(struct udphdr) - skb->data; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2482 | } |
| 2483 | |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 2484 | static inline void bnx2x_set_sbd_csum(struct bnx2x *bp, struct sk_buff *skb, |
| 2485 | struct eth_tx_start_bd *tx_start_bd, u32 xmit_type) |
| 2486 | { |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 2487 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_L4_CSUM; |
| 2488 | |
| 2489 | if (xmit_type & XMIT_CSUM_V4) |
| 2490 | tx_start_bd->bd_flags.as_bitfield |= |
| 2491 | ETH_TX_BD_FLAGS_IP_CSUM; |
| 2492 | else |
| 2493 | tx_start_bd->bd_flags.as_bitfield |= |
| 2494 | ETH_TX_BD_FLAGS_IPV6; |
| 2495 | |
| 2496 | if (!(xmit_type & XMIT_CSUM_TCP)) |
| 2497 | 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] | 2498 | } |
| 2499 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2500 | /** |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 2501 | * bnx2x_set_pbd_csum - update PBD with checksum and return header length |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2502 | * |
Dmitry Kravkov | e892067 | 2011-05-04 23:52:40 +0000 | [diff] [blame] | 2503 | * @bp: driver handle |
| 2504 | * @skb: packet skb |
| 2505 | * @pbd: parse BD to be updated |
| 2506 | * @xmit_type: xmit flags |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2507 | */ |
| 2508 | static inline u8 bnx2x_set_pbd_csum(struct bnx2x *bp, struct sk_buff *skb, |
| 2509 | struct eth_tx_parse_bd_e1x *pbd, |
| 2510 | u32 xmit_type) |
| 2511 | { |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 2512 | u8 hlen = (skb_network_header(skb) - skb->data) >> 1; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2513 | |
| 2514 | /* for now NS flag is not used in Linux */ |
| 2515 | pbd->global_data = |
| 2516 | (hlen | ((skb->protocol == cpu_to_be16(ETH_P_8021Q)) << |
| 2517 | ETH_TX_PARSE_BD_E1X_LLC_SNAP_EN_SHIFT)); |
| 2518 | |
| 2519 | pbd->ip_hlen_w = (skb_transport_header(skb) - |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 2520 | skb_network_header(skb)) >> 1; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2521 | |
Vladislav Zolotarov | e39aece | 2011-04-23 07:44:46 +0000 | [diff] [blame] | 2522 | hlen += pbd->ip_hlen_w; |
| 2523 | |
| 2524 | /* We support checksum offload for TCP and UDP only */ |
| 2525 | if (xmit_type & XMIT_CSUM_TCP) |
| 2526 | hlen += tcp_hdrlen(skb) / 2; |
| 2527 | else |
| 2528 | hlen += sizeof(struct udphdr) / 2; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2529 | |
| 2530 | pbd->total_hlen_w = cpu_to_le16(hlen); |
| 2531 | hlen = hlen*2; |
| 2532 | |
| 2533 | if (xmit_type & XMIT_CSUM_TCP) { |
| 2534 | pbd->tcp_pseudo_csum = swab16(tcp_hdr(skb)->check); |
| 2535 | |
| 2536 | } else { |
| 2537 | s8 fix = SKB_CS_OFF(skb); /* signed! */ |
| 2538 | |
| 2539 | DP(NETIF_MSG_TX_QUEUED, |
| 2540 | "hlen %d fix %d csum before fix %x\n", |
| 2541 | le16_to_cpu(pbd->total_hlen_w), fix, SKB_CS(skb)); |
| 2542 | |
| 2543 | /* HW bug: fixup the CSUM */ |
| 2544 | pbd->tcp_pseudo_csum = |
| 2545 | bnx2x_csum_fix(skb_transport_header(skb), |
| 2546 | SKB_CS(skb), fix); |
| 2547 | |
| 2548 | DP(NETIF_MSG_TX_QUEUED, "csum after fix %x\n", |
| 2549 | pbd->tcp_pseudo_csum); |
| 2550 | } |
| 2551 | |
| 2552 | return hlen; |
| 2553 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2554 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2555 | /* called with netif_tx_lock |
| 2556 | * bnx2x_tx_int() runs without netif_tx_lock unless it needs to call |
| 2557 | * netif_wake_queue() |
| 2558 | */ |
| 2559 | netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 2560 | { |
| 2561 | struct bnx2x *bp = netdev_priv(dev); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2562 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2563 | struct bnx2x_fastpath *fp; |
| 2564 | struct netdev_queue *txq; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2565 | struct bnx2x_fp_txdata *txdata; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2566 | struct sw_tx_bd *tx_buf; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2567 | struct eth_tx_start_bd *tx_start_bd, *first_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2568 | struct eth_tx_bd *tx_data_bd, *total_pkt_bd = NULL; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2569 | struct eth_tx_parse_bd_e1x *pbd_e1x = NULL; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2570 | struct eth_tx_parse_bd_e2 *pbd_e2 = NULL; |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 2571 | u32 pbd_e2_parsing_data = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2572 | u16 pkt_prod, bd_prod; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2573 | int nbd, txq_index, fp_index, txdata_index; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2574 | dma_addr_t mapping; |
| 2575 | u32 xmit_type = bnx2x_xmit_type(bp, skb); |
| 2576 | int i; |
| 2577 | u8 hlen = 0; |
| 2578 | __le16 pkt_size = 0; |
| 2579 | struct ethhdr *eth; |
| 2580 | u8 mac_type = UNICAST_ADDRESS; |
| 2581 | |
| 2582 | #ifdef BNX2X_STOP_ON_ERROR |
| 2583 | if (unlikely(bp->panic)) |
| 2584 | return NETDEV_TX_BUSY; |
| 2585 | #endif |
| 2586 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2587 | txq_index = skb_get_queue_mapping(skb); |
| 2588 | txq = netdev_get_tx_queue(dev, txq_index); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2589 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2590 | BUG_ON(txq_index >= MAX_ETH_TXQ_IDX(bp) + FCOE_PRESENT); |
| 2591 | |
| 2592 | /* decode the fastpath index and the cos index from the txq */ |
| 2593 | fp_index = TXQ_TO_FP(txq_index); |
| 2594 | txdata_index = TXQ_TO_COS(txq_index); |
| 2595 | |
| 2596 | #ifdef BCM_CNIC |
| 2597 | /* |
| 2598 | * Override the above for the FCoE queue: |
| 2599 | * - FCoE fp entry is right after the ETH entries. |
| 2600 | * - FCoE L2 queue uses bp->txdata[0] only. |
| 2601 | */ |
| 2602 | if (unlikely(!NO_FCOE(bp) && (txq_index == |
| 2603 | bnx2x_fcoe_tx(bp, txq_index)))) { |
| 2604 | fp_index = FCOE_IDX; |
| 2605 | txdata_index = 0; |
| 2606 | } |
| 2607 | #endif |
| 2608 | |
| 2609 | /* enable this debug print to view the transmission queue being used |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 2610 | DP(BNX2X_MSG_FP, "indices: txq %d, fp %d, txdata %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2611 | txq_index, fp_index, txdata_index); */ |
| 2612 | |
| 2613 | /* locate the fastpath and the txdata */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2614 | fp = &bp->fp[fp_index]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2615 | txdata = &fp->txdata[txdata_index]; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2616 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2617 | /* enable this debug print to view the tranmission details |
| 2618 | DP(BNX2X_MSG_FP,"transmitting packet cid %d fp index %d txdata_index %d" |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 2619 | " tx_data ptr %p fp pointer %p\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2620 | txdata->cid, fp_index, txdata_index, txdata, fp); */ |
| 2621 | |
| 2622 | if (unlikely(bnx2x_tx_avail(bp, txdata) < |
| 2623 | (skb_shinfo(skb)->nr_frags + 3))) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2624 | fp->eth_q_stats.driver_xoff++; |
| 2625 | netif_tx_stop_queue(txq); |
| 2626 | BNX2X_ERR("BUG! Tx ring full when queue awake!\n"); |
| 2627 | return NETDEV_TX_BUSY; |
| 2628 | } |
| 2629 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2630 | DP(NETIF_MSG_TX_QUEUED, "queue[%d]: SKB: summed %x protocol %x " |
| 2631 | "protocol(%x,%x) gso type %x xmit_type %x\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2632 | txq_index, skb->ip_summed, skb->protocol, ipv6_hdr(skb)->nexthdr, |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2633 | ip_hdr(skb)->protocol, skb_shinfo(skb)->gso_type, xmit_type); |
| 2634 | |
| 2635 | eth = (struct ethhdr *)skb->data; |
| 2636 | |
| 2637 | /* set flag according to packet type (UNICAST_ADDRESS is default)*/ |
| 2638 | if (unlikely(is_multicast_ether_addr(eth->h_dest))) { |
| 2639 | if (is_broadcast_ether_addr(eth->h_dest)) |
| 2640 | mac_type = BROADCAST_ADDRESS; |
| 2641 | else |
| 2642 | mac_type = MULTICAST_ADDRESS; |
| 2643 | } |
| 2644 | |
| 2645 | #if (MAX_SKB_FRAGS >= MAX_FETCH_BD - 3) |
| 2646 | /* First, check if we need to linearize the skb (due to FW |
| 2647 | restrictions). No need to check fragmentation if page size > 8K |
| 2648 | (there will be no violation to FW restrictions) */ |
| 2649 | if (bnx2x_pkt_req_lin(bp, skb, xmit_type)) { |
| 2650 | /* Statistics of linearization */ |
| 2651 | bp->lin_cnt++; |
| 2652 | if (skb_linearize(skb) != 0) { |
| 2653 | DP(NETIF_MSG_TX_QUEUED, "SKB linearization failed - " |
| 2654 | "silently dropping this SKB\n"); |
| 2655 | dev_kfree_skb_any(skb); |
| 2656 | return NETDEV_TX_OK; |
| 2657 | } |
| 2658 | } |
| 2659 | #endif |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2660 | /* Map skb linear data for DMA */ |
| 2661 | mapping = dma_map_single(&bp->pdev->dev, skb->data, |
| 2662 | skb_headlen(skb), DMA_TO_DEVICE); |
| 2663 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 2664 | DP(NETIF_MSG_TX_QUEUED, "SKB mapping failed - " |
| 2665 | "silently dropping this SKB\n"); |
| 2666 | dev_kfree_skb_any(skb); |
| 2667 | return NETDEV_TX_OK; |
| 2668 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2669 | /* |
| 2670 | Please read carefully. First we use one BD which we mark as start, |
| 2671 | then we have a parsing info BD (used for TSO or xsum), |
| 2672 | and only then we have the rest of the TSO BDs. |
| 2673 | (don't forget to mark the last one as last, |
| 2674 | and to unmap only AFTER you write to the BD ...) |
| 2675 | And above all, all pdb sizes are in words - NOT DWORDS! |
| 2676 | */ |
| 2677 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2678 | /* get current pkt produced now - advance it just before sending packet |
| 2679 | * since mapping of pages may fail and cause packet to be dropped |
| 2680 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2681 | pkt_prod = txdata->tx_pkt_prod; |
| 2682 | bd_prod = TX_BD(txdata->tx_bd_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2683 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2684 | /* get a tx_buf and first BD |
| 2685 | * tx_start_bd may be changed during SPLIT, |
| 2686 | * but first_bd will always stay first |
| 2687 | */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2688 | tx_buf = &txdata->tx_buf_ring[TX_BD(pkt_prod)]; |
| 2689 | tx_start_bd = &txdata->tx_desc_ring[bd_prod].start_bd; |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2690 | first_bd = tx_start_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2691 | |
| 2692 | tx_start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD; |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2693 | SET_FLAG(tx_start_bd->general_data, ETH_TX_START_BD_ETH_ADDR_TYPE, |
| 2694 | mac_type); |
| 2695 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2696 | /* header nbd */ |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2697 | 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] | 2698 | |
| 2699 | /* remember the first BD of the packet */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2700 | tx_buf->first_bd = txdata->tx_bd_prod; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2701 | tx_buf->skb = skb; |
| 2702 | tx_buf->flags = 0; |
| 2703 | |
| 2704 | DP(NETIF_MSG_TX_QUEUED, |
| 2705 | "sending pkt %u @%p next_idx %u bd %u @%p\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2706 | 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] | 2707 | |
Jesse Gross | eab6d18 | 2010-10-20 13:56:03 +0000 | [diff] [blame] | 2708 | if (vlan_tx_tag_present(skb)) { |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2709 | tx_start_bd->vlan_or_ethertype = |
| 2710 | cpu_to_le16(vlan_tx_tag_get(skb)); |
| 2711 | tx_start_bd->bd_flags.as_bitfield |= |
| 2712 | (X_ETH_OUTBAND_VLAN << ETH_TX_BD_FLAGS_VLAN_MODE_SHIFT); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2713 | } else |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2714 | tx_start_bd->vlan_or_ethertype = cpu_to_le16(pkt_prod); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2715 | |
| 2716 | /* turn on parsing and get a BD */ |
| 2717 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2718 | |
Dmitry Kravkov | 93ef5c0 | 2011-06-14 01:33:02 +0000 | [diff] [blame] | 2719 | if (xmit_type & XMIT_CSUM) |
| 2720 | bnx2x_set_sbd_csum(bp, skb, tx_start_bd, xmit_type); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2721 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2722 | if (!CHIP_IS_E1x(bp)) { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2723 | pbd_e2 = &txdata->tx_desc_ring[bd_prod].parse_bd_e2; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2724 | memset(pbd_e2, 0, sizeof(struct eth_tx_parse_bd_e2)); |
| 2725 | /* Set PBD in checksum offload case */ |
| 2726 | if (xmit_type & XMIT_CSUM) |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 2727 | hlen = bnx2x_set_pbd_csum_e2(bp, skb, |
| 2728 | &pbd_e2_parsing_data, |
| 2729 | xmit_type); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2730 | if (IS_MF_SI(bp)) { |
| 2731 | /* |
| 2732 | * fill in the MAC addresses in the PBD - for local |
| 2733 | * switching |
| 2734 | */ |
| 2735 | bnx2x_set_fw_mac_addr(&pbd_e2->src_mac_addr_hi, |
| 2736 | &pbd_e2->src_mac_addr_mid, |
| 2737 | &pbd_e2->src_mac_addr_lo, |
| 2738 | eth->h_source); |
| 2739 | bnx2x_set_fw_mac_addr(&pbd_e2->dst_mac_addr_hi, |
| 2740 | &pbd_e2->dst_mac_addr_mid, |
| 2741 | &pbd_e2->dst_mac_addr_lo, |
| 2742 | eth->h_dest); |
| 2743 | } |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2744 | } else { |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2745 | pbd_e1x = &txdata->tx_desc_ring[bd_prod].parse_bd_e1x; |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2746 | memset(pbd_e1x, 0, sizeof(struct eth_tx_parse_bd_e1x)); |
| 2747 | /* Set PBD in checksum offload case */ |
| 2748 | if (xmit_type & XMIT_CSUM) |
| 2749 | hlen = bnx2x_set_pbd_csum(bp, skb, pbd_e1x, xmit_type); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2750 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2751 | } |
| 2752 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2753 | /* Setup the data pointer of the first BD of the packet */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2754 | tx_start_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 2755 | tx_start_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2756 | nbd = 2; /* start_bd + pbd + frags (updated when pages are mapped) */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2757 | tx_start_bd->nbytes = cpu_to_le16(skb_headlen(skb)); |
| 2758 | pkt_size = tx_start_bd->nbytes; |
| 2759 | |
| 2760 | DP(NETIF_MSG_TX_QUEUED, "first bd @%p addr (%x:%x) nbd %d" |
| 2761 | " nbytes %d flags %x vlan %x\n", |
| 2762 | tx_start_bd, tx_start_bd->addr_hi, tx_start_bd->addr_lo, |
| 2763 | 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] | 2764 | tx_start_bd->bd_flags.as_bitfield, |
| 2765 | le16_to_cpu(tx_start_bd->vlan_or_ethertype)); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2766 | |
| 2767 | if (xmit_type & XMIT_GSO) { |
| 2768 | |
| 2769 | DP(NETIF_MSG_TX_QUEUED, |
| 2770 | "TSO packet len %d hlen %d total len %d tso size %d\n", |
| 2771 | skb->len, hlen, skb_headlen(skb), |
| 2772 | skb_shinfo(skb)->gso_size); |
| 2773 | |
| 2774 | tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_SW_LSO; |
| 2775 | |
| 2776 | if (unlikely(skb_headlen(skb) > hlen)) |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2777 | bd_prod = bnx2x_tx_split(bp, txdata, tx_buf, |
| 2778 | &tx_start_bd, hlen, |
| 2779 | bd_prod, ++nbd); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2780 | if (!CHIP_IS_E1x(bp)) |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 2781 | bnx2x_set_pbd_gso_e2(skb, &pbd_e2_parsing_data, |
| 2782 | xmit_type); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2783 | else |
| 2784 | bnx2x_set_pbd_gso(skb, pbd_e1x, xmit_type); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2785 | } |
Vladislav Zolotarov | 2297a2d | 2010-12-08 01:43:09 +0000 | [diff] [blame] | 2786 | |
| 2787 | /* Set the PBD's parsing_data field if not zero |
| 2788 | * (for the chips newer than 57711). |
| 2789 | */ |
| 2790 | if (pbd_e2_parsing_data) |
| 2791 | pbd_e2->parsing_data = cpu_to_le32(pbd_e2_parsing_data); |
| 2792 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2793 | tx_data_bd = (struct eth_tx_bd *)tx_start_bd; |
| 2794 | |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2795 | /* Handle fragmented skb */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2796 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| 2797 | skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
| 2798 | |
Ian Campbell | f55c957 | 2011-08-24 22:28:13 +0000 | [diff] [blame] | 2799 | mapping = skb_frag_dma_map(&bp->pdev->dev, frag, 0, frag->size, |
| 2800 | DMA_TO_DEVICE); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2801 | if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { |
| 2802 | |
| 2803 | DP(NETIF_MSG_TX_QUEUED, "Unable to map page - " |
| 2804 | "dropping packet...\n"); |
| 2805 | |
| 2806 | /* we need unmap all buffers already mapped |
| 2807 | * for this SKB; |
| 2808 | * first_bd->nbd need to be properly updated |
| 2809 | * before call to bnx2x_free_tx_pkt |
| 2810 | */ |
| 2811 | first_bd->nbd = cpu_to_le16(nbd); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2812 | bnx2x_free_tx_pkt(bp, txdata, |
| 2813 | TX_BD(txdata->tx_pkt_prod)); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2814 | return NETDEV_TX_OK; |
| 2815 | } |
| 2816 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2817 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2818 | tx_data_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2819 | if (total_pkt_bd == NULL) |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2820 | total_pkt_bd = &txdata->tx_desc_ring[bd_prod].reg_bd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2821 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2822 | tx_data_bd->addr_hi = cpu_to_le32(U64_HI(mapping)); |
| 2823 | tx_data_bd->addr_lo = cpu_to_le32(U64_LO(mapping)); |
| 2824 | tx_data_bd->nbytes = cpu_to_le16(frag->size); |
| 2825 | le16_add_cpu(&pkt_size, frag->size); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2826 | nbd++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2827 | |
| 2828 | DP(NETIF_MSG_TX_QUEUED, |
| 2829 | "frag %d bd @%p addr (%x:%x) nbytes %d\n", |
| 2830 | i, tx_data_bd, tx_data_bd->addr_hi, tx_data_bd->addr_lo, |
| 2831 | le16_to_cpu(tx_data_bd->nbytes)); |
| 2832 | } |
| 2833 | |
| 2834 | DP(NETIF_MSG_TX_QUEUED, "last bd @%p\n", tx_data_bd); |
| 2835 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2836 | /* update with actual num BDs */ |
| 2837 | first_bd->nbd = cpu_to_le16(nbd); |
| 2838 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2839 | bd_prod = TX_BD(NEXT_TX_IDX(bd_prod)); |
| 2840 | |
| 2841 | /* now send a tx doorbell, counting the next BD |
| 2842 | * if the packet contains or ends with it |
| 2843 | */ |
| 2844 | if (TX_BD_POFF(bd_prod) < nbd) |
| 2845 | nbd++; |
| 2846 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2847 | /* total_pkt_bytes should be set on the first data BD if |
| 2848 | * it's not an LSO packet and there is more than one |
| 2849 | * data BD. In this case pkt_size is limited by an MTU value. |
| 2850 | * However we prefer to set it for an LSO packet (while we don't |
| 2851 | * have to) in order to save some CPU cycles in a none-LSO |
| 2852 | * case, when we much more care about them. |
| 2853 | */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2854 | if (total_pkt_bd != NULL) |
| 2855 | total_pkt_bd->total_pkt_bytes = pkt_size; |
| 2856 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2857 | if (pbd_e1x) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2858 | DP(NETIF_MSG_TX_QUEUED, |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2859 | "PBD (E1X) @%p ip_data %x ip_hlen %u ip_id %u lso_mss %u" |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2860 | " tcp_flags %x xsum %x seq %u hlen %u\n", |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 2861 | pbd_e1x, pbd_e1x->global_data, pbd_e1x->ip_hlen_w, |
| 2862 | pbd_e1x->ip_id, pbd_e1x->lso_mss, pbd_e1x->tcp_flags, |
| 2863 | pbd_e1x->tcp_pseudo_csum, pbd_e1x->tcp_send_seq, |
| 2864 | le16_to_cpu(pbd_e1x->total_hlen_w)); |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 2865 | if (pbd_e2) |
| 2866 | DP(NETIF_MSG_TX_QUEUED, |
| 2867 | "PBD (E2) @%p dst %x %x %x src %x %x %x parsing_data %x\n", |
| 2868 | pbd_e2, pbd_e2->dst_mac_addr_hi, pbd_e2->dst_mac_addr_mid, |
| 2869 | pbd_e2->dst_mac_addr_lo, pbd_e2->src_mac_addr_hi, |
| 2870 | pbd_e2->src_mac_addr_mid, pbd_e2->src_mac_addr_lo, |
| 2871 | pbd_e2->parsing_data); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2872 | DP(NETIF_MSG_TX_QUEUED, "doorbell: nbd %d bd %u\n", nbd, bd_prod); |
| 2873 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2874 | txdata->tx_pkt_prod++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2875 | /* |
| 2876 | * Make sure that the BD data is updated before updating the producer |
| 2877 | * since FW might read the BD right after the producer is updated. |
| 2878 | * This is only applicable for weak-ordered memory model archs such |
| 2879 | * as IA-64. The following barrier is also mandatory since FW will |
| 2880 | * assumes packets must have BDs. |
| 2881 | */ |
| 2882 | wmb(); |
| 2883 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2884 | txdata->tx_db.data.prod += nbd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2885 | barrier(); |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2886 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2887 | DOORBELL(bp, txdata->cid, txdata->tx_db.raw); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2888 | |
| 2889 | mmiowb(); |
| 2890 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2891 | txdata->tx_bd_prod += nbd; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2892 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2893 | if (unlikely(bnx2x_tx_avail(bp, txdata) < MAX_SKB_FRAGS + 3)) { |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2894 | netif_tx_stop_queue(txq); |
| 2895 | |
| 2896 | /* paired memory barrier is in bnx2x_tx_int(), we have to keep |
| 2897 | * ordering of set_bit() in netif_tx_stop_queue() and read of |
| 2898 | * fp->bd_tx_cons */ |
| 2899 | smp_mb(); |
| 2900 | |
| 2901 | fp->eth_q_stats.driver_xoff++; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2902 | if (bnx2x_tx_avail(bp, txdata) >= MAX_SKB_FRAGS + 3) |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2903 | netif_tx_wake_queue(txq); |
| 2904 | } |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2905 | txdata->tx_pkt++; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2906 | |
| 2907 | return NETDEV_TX_OK; |
| 2908 | } |
Dmitry Kravkov | f85582f | 2010-10-06 03:34:21 +0000 | [diff] [blame] | 2909 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2910 | /** |
| 2911 | * bnx2x_setup_tc - routine to configure net_device for multi tc |
| 2912 | * |
| 2913 | * @netdev: net device to configure |
| 2914 | * @tc: number of traffic classes to enable |
| 2915 | * |
| 2916 | * callback connected to the ndo_setup_tc function pointer |
| 2917 | */ |
| 2918 | int bnx2x_setup_tc(struct net_device *dev, u8 num_tc) |
| 2919 | { |
| 2920 | int cos, prio, count, offset; |
| 2921 | struct bnx2x *bp = netdev_priv(dev); |
| 2922 | |
| 2923 | /* setup tc must be called under rtnl lock */ |
| 2924 | ASSERT_RTNL(); |
| 2925 | |
| 2926 | /* no traffic classes requested. aborting */ |
| 2927 | if (!num_tc) { |
| 2928 | netdev_reset_tc(dev); |
| 2929 | return 0; |
| 2930 | } |
| 2931 | |
| 2932 | /* requested to support too many traffic classes */ |
| 2933 | if (num_tc > bp->max_cos) { |
| 2934 | DP(NETIF_MSG_TX_ERR, "support for too many traffic classes" |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 2935 | " requested: %d. max supported is %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2936 | num_tc, bp->max_cos); |
| 2937 | return -EINVAL; |
| 2938 | } |
| 2939 | |
| 2940 | /* declare amount of supported traffic classes */ |
| 2941 | if (netdev_set_num_tc(dev, num_tc)) { |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 2942 | DP(NETIF_MSG_TX_ERR, "failed to declare %d traffic classes\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2943 | num_tc); |
| 2944 | return -EINVAL; |
| 2945 | } |
| 2946 | |
| 2947 | /* configure priority to traffic class mapping */ |
| 2948 | for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) { |
| 2949 | netdev_set_prio_tc_map(dev, prio, bp->prio_to_cos[prio]); |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 2950 | DP(BNX2X_MSG_SP, "mapping priority %d to tc %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2951 | prio, bp->prio_to_cos[prio]); |
| 2952 | } |
| 2953 | |
| 2954 | |
| 2955 | /* Use this configuration to diffrentiate tc0 from other COSes |
| 2956 | This can be used for ets or pfc, and save the effort of setting |
| 2957 | up a multio class queue disc or negotiating DCBX with a switch |
| 2958 | netdev_set_prio_tc_map(dev, 0, 0); |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 2959 | 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] | 2960 | for (prio = 1; prio < 16; prio++) { |
| 2961 | netdev_set_prio_tc_map(dev, prio, 1); |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 2962 | 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] | 2963 | } */ |
| 2964 | |
| 2965 | /* configure traffic class to transmission queue mapping */ |
| 2966 | for (cos = 0; cos < bp->max_cos; cos++) { |
| 2967 | count = BNX2X_NUM_ETH_QUEUES(bp); |
| 2968 | offset = cos * MAX_TXQS_PER_COS; |
| 2969 | netdev_set_tc_queue(dev, cos, count, offset); |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 2970 | DP(BNX2X_MSG_SP, "mapping tc %d to offset %d count %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 2971 | cos, offset, count); |
| 2972 | } |
| 2973 | |
| 2974 | return 0; |
| 2975 | } |
| 2976 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2977 | /* called with rtnl_lock */ |
| 2978 | int bnx2x_change_mac_addr(struct net_device *dev, void *p) |
| 2979 | { |
| 2980 | struct sockaddr *addr = p; |
| 2981 | struct bnx2x *bp = netdev_priv(dev); |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2982 | int rc = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2983 | |
| 2984 | if (!is_valid_ether_addr((u8 *)(addr->sa_data))) |
| 2985 | return -EINVAL; |
| 2986 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2987 | if (netif_running(dev)) { |
| 2988 | rc = bnx2x_set_eth_mac(bp, false); |
| 2989 | if (rc) |
| 2990 | return rc; |
| 2991 | } |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2992 | |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 2993 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
| 2994 | |
| 2995 | if (netif_running(dev)) |
| 2996 | rc = bnx2x_set_eth_mac(bp, true); |
| 2997 | |
| 2998 | return rc; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 2999 | } |
| 3000 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3001 | static void bnx2x_free_fp_mem_at(struct bnx2x *bp, int fp_index) |
| 3002 | { |
| 3003 | union host_hc_status_block *sb = &bnx2x_fp(bp, fp_index, status_blk); |
| 3004 | struct bnx2x_fastpath *fp = &bp->fp[fp_index]; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3005 | u8 cos; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3006 | |
| 3007 | /* Common */ |
| 3008 | #ifdef BCM_CNIC |
| 3009 | if (IS_FCOE_IDX(fp_index)) { |
| 3010 | memset(sb, 0, sizeof(union host_hc_status_block)); |
| 3011 | fp->status_blk_mapping = 0; |
| 3012 | |
| 3013 | } else { |
| 3014 | #endif |
| 3015 | /* status blocks */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3016 | if (!CHIP_IS_E1x(bp)) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3017 | BNX2X_PCI_FREE(sb->e2_sb, |
| 3018 | bnx2x_fp(bp, fp_index, |
| 3019 | status_blk_mapping), |
| 3020 | sizeof(struct host_hc_status_block_e2)); |
| 3021 | else |
| 3022 | BNX2X_PCI_FREE(sb->e1x_sb, |
| 3023 | bnx2x_fp(bp, fp_index, |
| 3024 | status_blk_mapping), |
| 3025 | sizeof(struct host_hc_status_block_e1x)); |
| 3026 | #ifdef BCM_CNIC |
| 3027 | } |
| 3028 | #endif |
| 3029 | /* Rx */ |
| 3030 | if (!skip_rx_queue(bp, fp_index)) { |
| 3031 | bnx2x_free_rx_bds(fp); |
| 3032 | |
| 3033 | /* fastpath rx rings: rx_buf rx_desc rx_comp */ |
| 3034 | BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_buf_ring)); |
| 3035 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_desc_ring), |
| 3036 | bnx2x_fp(bp, fp_index, rx_desc_mapping), |
| 3037 | sizeof(struct eth_rx_bd) * NUM_RX_BD); |
| 3038 | |
| 3039 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_comp_ring), |
| 3040 | bnx2x_fp(bp, fp_index, rx_comp_mapping), |
| 3041 | sizeof(struct eth_fast_path_rx_cqe) * |
| 3042 | NUM_RCQ_BD); |
| 3043 | |
| 3044 | /* SGE ring */ |
| 3045 | BNX2X_FREE(bnx2x_fp(bp, fp_index, rx_page_ring)); |
| 3046 | BNX2X_PCI_FREE(bnx2x_fp(bp, fp_index, rx_sge_ring), |
| 3047 | bnx2x_fp(bp, fp_index, rx_sge_mapping), |
| 3048 | BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); |
| 3049 | } |
| 3050 | |
| 3051 | /* Tx */ |
| 3052 | if (!skip_tx_queue(bp, fp_index)) { |
| 3053 | /* fastpath tx rings: tx_buf tx_desc */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3054 | for_each_cos_in_tx_queue(fp, cos) { |
| 3055 | struct bnx2x_fp_txdata *txdata = &fp->txdata[cos]; |
| 3056 | |
| 3057 | DP(BNX2X_MSG_SP, |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 3058 | "freeing tx memory of fp %d cos %d cid %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3059 | fp_index, cos, txdata->cid); |
| 3060 | |
| 3061 | BNX2X_FREE(txdata->tx_buf_ring); |
| 3062 | BNX2X_PCI_FREE(txdata->tx_desc_ring, |
| 3063 | txdata->tx_desc_mapping, |
| 3064 | sizeof(union eth_tx_bd_types) * NUM_TX_BD); |
| 3065 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3066 | } |
| 3067 | /* end of fastpath */ |
| 3068 | } |
| 3069 | |
| 3070 | void bnx2x_free_fp_mem(struct bnx2x *bp) |
| 3071 | { |
| 3072 | int i; |
| 3073 | for_each_queue(bp, i) |
| 3074 | bnx2x_free_fp_mem_at(bp, i); |
| 3075 | } |
| 3076 | |
| 3077 | static inline void set_sb_shortcuts(struct bnx2x *bp, int index) |
| 3078 | { |
| 3079 | 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] | 3080 | if (!CHIP_IS_E1x(bp)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3081 | bnx2x_fp(bp, index, sb_index_values) = |
| 3082 | (__le16 *)status_blk.e2_sb->sb.index_values; |
| 3083 | bnx2x_fp(bp, index, sb_running_index) = |
| 3084 | (__le16 *)status_blk.e2_sb->sb.running_index; |
| 3085 | } else { |
| 3086 | bnx2x_fp(bp, index, sb_index_values) = |
| 3087 | (__le16 *)status_blk.e1x_sb->sb.index_values; |
| 3088 | bnx2x_fp(bp, index, sb_running_index) = |
| 3089 | (__le16 *)status_blk.e1x_sb->sb.running_index; |
| 3090 | } |
| 3091 | } |
| 3092 | |
| 3093 | static int bnx2x_alloc_fp_mem_at(struct bnx2x *bp, int index) |
| 3094 | { |
| 3095 | union host_hc_status_block *sb; |
| 3096 | struct bnx2x_fastpath *fp = &bp->fp[index]; |
| 3097 | int ring_size = 0; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3098 | u8 cos; |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame^] | 3099 | int rx_ring_size = 0; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3100 | |
| 3101 | /* if rx_ring_size specified - use it */ |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame^] | 3102 | if (!bp->rx_ring_size) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3103 | |
David S. Miller | 8decf86 | 2011-09-22 03:23:13 -0400 | [diff] [blame^] | 3104 | rx_ring_size = MAX_RX_AVAIL/BNX2X_NUM_RX_QUEUES(bp); |
| 3105 | |
| 3106 | /* allocate at least number of buffers required by FW */ |
| 3107 | rx_ring_size = max_t(int, bp->disable_tpa ? MIN_RX_SIZE_NONTPA : |
| 3108 | MIN_RX_SIZE_TPA, rx_ring_size); |
| 3109 | |
| 3110 | bp->rx_ring_size = rx_ring_size; |
| 3111 | } else |
| 3112 | rx_ring_size = bp->rx_ring_size; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3113 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3114 | /* Common */ |
| 3115 | sb = &bnx2x_fp(bp, index, status_blk); |
| 3116 | #ifdef BCM_CNIC |
| 3117 | if (!IS_FCOE_IDX(index)) { |
| 3118 | #endif |
| 3119 | /* status blocks */ |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3120 | if (!CHIP_IS_E1x(bp)) |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3121 | BNX2X_PCI_ALLOC(sb->e2_sb, |
| 3122 | &bnx2x_fp(bp, index, status_blk_mapping), |
| 3123 | sizeof(struct host_hc_status_block_e2)); |
| 3124 | else |
| 3125 | BNX2X_PCI_ALLOC(sb->e1x_sb, |
| 3126 | &bnx2x_fp(bp, index, status_blk_mapping), |
| 3127 | sizeof(struct host_hc_status_block_e1x)); |
| 3128 | #ifdef BCM_CNIC |
| 3129 | } |
| 3130 | #endif |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 3131 | |
| 3132 | /* FCoE Queue uses Default SB and doesn't ACK the SB, thus no need to |
| 3133 | * set shortcuts for it. |
| 3134 | */ |
| 3135 | if (!IS_FCOE_IDX(index)) |
| 3136 | set_sb_shortcuts(bp, index); |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3137 | |
| 3138 | /* Tx */ |
| 3139 | if (!skip_tx_queue(bp, index)) { |
| 3140 | /* fastpath tx rings: tx_buf tx_desc */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3141 | for_each_cos_in_tx_queue(fp, cos) { |
| 3142 | struct bnx2x_fp_txdata *txdata = &fp->txdata[cos]; |
| 3143 | |
| 3144 | DP(BNX2X_MSG_SP, "allocating tx memory of " |
Joe Perches | 94f05b0 | 2011-08-14 12:16:20 +0000 | [diff] [blame] | 3145 | "fp %d cos %d\n", |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3146 | index, cos); |
| 3147 | |
| 3148 | BNX2X_ALLOC(txdata->tx_buf_ring, |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3149 | sizeof(struct sw_tx_bd) * NUM_TX_BD); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3150 | BNX2X_PCI_ALLOC(txdata->tx_desc_ring, |
| 3151 | &txdata->tx_desc_mapping, |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3152 | sizeof(union eth_tx_bd_types) * NUM_TX_BD); |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3153 | } |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3154 | } |
| 3155 | |
| 3156 | /* Rx */ |
| 3157 | if (!skip_rx_queue(bp, index)) { |
| 3158 | /* fastpath rx rings: rx_buf rx_desc rx_comp */ |
| 3159 | BNX2X_ALLOC(bnx2x_fp(bp, index, rx_buf_ring), |
| 3160 | sizeof(struct sw_rx_bd) * NUM_RX_BD); |
| 3161 | BNX2X_PCI_ALLOC(bnx2x_fp(bp, index, rx_desc_ring), |
| 3162 | &bnx2x_fp(bp, index, rx_desc_mapping), |
| 3163 | sizeof(struct eth_rx_bd) * NUM_RX_BD); |
| 3164 | |
| 3165 | BNX2X_PCI_ALLOC(bnx2x_fp(bp, index, rx_comp_ring), |
| 3166 | &bnx2x_fp(bp, index, rx_comp_mapping), |
| 3167 | sizeof(struct eth_fast_path_rx_cqe) * |
| 3168 | NUM_RCQ_BD); |
| 3169 | |
| 3170 | /* SGE ring */ |
| 3171 | BNX2X_ALLOC(bnx2x_fp(bp, index, rx_page_ring), |
| 3172 | sizeof(struct sw_rx_page) * NUM_RX_SGE); |
| 3173 | BNX2X_PCI_ALLOC(bnx2x_fp(bp, index, rx_sge_ring), |
| 3174 | &bnx2x_fp(bp, index, rx_sge_mapping), |
| 3175 | BCM_PAGE_SIZE * NUM_RX_SGE_PAGES); |
| 3176 | /* RX BD ring */ |
| 3177 | bnx2x_set_next_page_rx_bd(fp); |
| 3178 | |
| 3179 | /* CQ ring */ |
| 3180 | bnx2x_set_next_page_rx_cq(fp); |
| 3181 | |
| 3182 | /* BDs */ |
| 3183 | ring_size = bnx2x_alloc_rx_bds(fp, rx_ring_size); |
| 3184 | if (ring_size < rx_ring_size) |
| 3185 | goto alloc_mem_err; |
| 3186 | } |
| 3187 | |
| 3188 | return 0; |
| 3189 | |
| 3190 | /* handles low memory cases */ |
| 3191 | alloc_mem_err: |
| 3192 | BNX2X_ERR("Unable to allocate full memory for queue %d (size %d)\n", |
| 3193 | index, ring_size); |
| 3194 | /* FW will drop all packets if queue is not big enough, |
| 3195 | * In these cases we disable the queue |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3196 | * Min size is different for OOO, TPA and non-TPA queues |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3197 | */ |
| 3198 | if (ring_size < (fp->disable_tpa ? |
Dmitry Kravkov | eb722d7 | 2011-05-24 02:06:06 +0000 | [diff] [blame] | 3199 | MIN_RX_SIZE_NONTPA : MIN_RX_SIZE_TPA)) { |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3200 | /* release memory allocated for this queue */ |
| 3201 | bnx2x_free_fp_mem_at(bp, index); |
| 3202 | return -ENOMEM; |
| 3203 | } |
| 3204 | return 0; |
| 3205 | } |
| 3206 | |
| 3207 | int bnx2x_alloc_fp_mem(struct bnx2x *bp) |
| 3208 | { |
| 3209 | int i; |
| 3210 | |
| 3211 | /** |
| 3212 | * 1. Allocate FP for leading - fatal if error |
| 3213 | * 2. {CNIC} Allocate FCoE FP - fatal if error |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3214 | * 3. {CNIC} Allocate OOO + FWD - disable OOO if error |
| 3215 | * 4. Allocate RSS - fix number of queues if error |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3216 | */ |
| 3217 | |
| 3218 | /* leading */ |
| 3219 | if (bnx2x_alloc_fp_mem_at(bp, 0)) |
| 3220 | return -ENOMEM; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3221 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3222 | #ifdef BCM_CNIC |
Dmitry Kravkov | 8eef2af | 2011-06-14 01:32:47 +0000 | [diff] [blame] | 3223 | if (!NO_FCOE(bp)) |
| 3224 | /* FCoE */ |
| 3225 | if (bnx2x_alloc_fp_mem_at(bp, FCOE_IDX)) |
| 3226 | /* we will fail load process instead of mark |
| 3227 | * NO_FCOE_FLAG |
| 3228 | */ |
| 3229 | return -ENOMEM; |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3230 | #endif |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3231 | |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3232 | /* RSS */ |
| 3233 | for_each_nondefault_eth_queue(bp, i) |
| 3234 | if (bnx2x_alloc_fp_mem_at(bp, i)) |
| 3235 | break; |
| 3236 | |
| 3237 | /* handle memory failures */ |
| 3238 | if (i != BNX2X_NUM_ETH_QUEUES(bp)) { |
| 3239 | int delta = BNX2X_NUM_ETH_QUEUES(bp) - i; |
| 3240 | |
| 3241 | WARN_ON(delta < 0); |
| 3242 | #ifdef BCM_CNIC |
| 3243 | /** |
| 3244 | * move non eth FPs next to last eth FP |
| 3245 | * must be done in that order |
| 3246 | * FCOE_IDX < FWD_IDX < OOO_IDX |
| 3247 | */ |
| 3248 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3249 | /* move FCoE fp even NO_FCOE_FLAG is on */ |
Dmitry Kravkov | b3b83c3 | 2011-05-04 23:50:33 +0000 | [diff] [blame] | 3250 | bnx2x_move_fp(bp, FCOE_IDX, FCOE_IDX - delta); |
| 3251 | #endif |
| 3252 | bp->num_queues -= delta; |
| 3253 | BNX2X_ERR("Adjusted num of queues from %d to %d\n", |
| 3254 | bp->num_queues + delta, bp->num_queues); |
| 3255 | } |
| 3256 | |
| 3257 | return 0; |
| 3258 | } |
Dmitry Kravkov | d6214d7 | 2010-10-06 03:32:10 +0000 | [diff] [blame] | 3259 | |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3260 | void bnx2x_free_mem_bp(struct bnx2x *bp) |
| 3261 | { |
| 3262 | kfree(bp->fp); |
| 3263 | kfree(bp->msix_table); |
| 3264 | kfree(bp->ilt); |
| 3265 | } |
| 3266 | |
| 3267 | int __devinit bnx2x_alloc_mem_bp(struct bnx2x *bp) |
| 3268 | { |
| 3269 | struct bnx2x_fastpath *fp; |
| 3270 | struct msix_entry *tbl; |
| 3271 | struct bnx2x_ilt *ilt; |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3272 | int msix_table_size = 0; |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3273 | |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3274 | /* |
| 3275 | * The biggest MSI-X table we might need is as a maximum number of fast |
| 3276 | * path IGU SBs plus default SB (for PF). |
| 3277 | */ |
| 3278 | msix_table_size = bp->igu_sb_cnt + 1; |
| 3279 | |
| 3280 | /* fp array: RSS plus CNIC related L2 queues */ |
| 3281 | fp = kzalloc((BNX2X_MAX_RSS_COUNT(bp) + NON_ETH_CONTEXT_USE) * |
| 3282 | sizeof(*fp), GFP_KERNEL); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3283 | if (!fp) |
| 3284 | goto alloc_err; |
| 3285 | bp->fp = fp; |
| 3286 | |
| 3287 | /* msix table */ |
Ariel Elior | 6383c0b | 2011-07-14 08:31:57 +0000 | [diff] [blame] | 3288 | tbl = kzalloc(msix_table_size * sizeof(*tbl), GFP_KERNEL); |
Dmitry Kravkov | 523224a | 2010-10-06 03:23:26 +0000 | [diff] [blame] | 3289 | if (!tbl) |
| 3290 | goto alloc_err; |
| 3291 | bp->msix_table = tbl; |
| 3292 | |
| 3293 | /* ilt */ |
| 3294 | ilt = kzalloc(sizeof(*ilt), GFP_KERNEL); |
| 3295 | if (!ilt) |
| 3296 | goto alloc_err; |
| 3297 | bp->ilt = ilt; |
| 3298 | |
| 3299 | return 0; |
| 3300 | alloc_err: |
| 3301 | bnx2x_free_mem_bp(bp); |
| 3302 | return -ENOMEM; |
| 3303 | |
| 3304 | } |
| 3305 | |
Dmitry Kravkov | a9fccec | 2011-06-14 01:33:30 +0000 | [diff] [blame] | 3306 | int bnx2x_reload_if_running(struct net_device *dev) |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 3307 | { |
| 3308 | struct bnx2x *bp = netdev_priv(dev); |
| 3309 | |
| 3310 | if (unlikely(!netif_running(dev))) |
| 3311 | return 0; |
| 3312 | |
| 3313 | bnx2x_nic_unload(bp, UNLOAD_NORMAL); |
| 3314 | return bnx2x_nic_load(bp, LOAD_NORMAL); |
| 3315 | } |
| 3316 | |
Yaniv Rosner | 1ac9e42 | 2011-05-31 21:26:11 +0000 | [diff] [blame] | 3317 | int bnx2x_get_cur_phy_idx(struct bnx2x *bp) |
| 3318 | { |
| 3319 | u32 sel_phy_idx = 0; |
| 3320 | if (bp->link_params.num_phys <= 1) |
| 3321 | return INT_PHY; |
| 3322 | |
| 3323 | if (bp->link_vars.link_up) { |
| 3324 | sel_phy_idx = EXT_PHY1; |
| 3325 | /* In case link is SERDES, check if the EXT_PHY2 is the one */ |
| 3326 | if ((bp->link_vars.link_status & LINK_STATUS_SERDES_LINK) && |
| 3327 | (bp->link_params.phy[EXT_PHY2].supported & SUPPORTED_FIBRE)) |
| 3328 | sel_phy_idx = EXT_PHY2; |
| 3329 | } else { |
| 3330 | |
| 3331 | switch (bnx2x_phy_selection(&bp->link_params)) { |
| 3332 | case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT: |
| 3333 | case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY: |
| 3334 | case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY: |
| 3335 | sel_phy_idx = EXT_PHY1; |
| 3336 | break; |
| 3337 | case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY: |
| 3338 | case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY: |
| 3339 | sel_phy_idx = EXT_PHY2; |
| 3340 | break; |
| 3341 | } |
| 3342 | } |
| 3343 | |
| 3344 | return sel_phy_idx; |
| 3345 | |
| 3346 | } |
| 3347 | int bnx2x_get_link_cfg_idx(struct bnx2x *bp) |
| 3348 | { |
| 3349 | u32 sel_phy_idx = bnx2x_get_cur_phy_idx(bp); |
| 3350 | /* |
| 3351 | * The selected actived PHY is always after swapping (in case PHY |
| 3352 | * swapping is enabled). So when swapping is enabled, we need to reverse |
| 3353 | * the configuration |
| 3354 | */ |
| 3355 | |
| 3356 | if (bp->link_params.multi_phy_config & |
| 3357 | PORT_HW_CFG_PHY_SWAPPED_ENABLED) { |
| 3358 | if (sel_phy_idx == EXT_PHY1) |
| 3359 | sel_phy_idx = EXT_PHY2; |
| 3360 | else if (sel_phy_idx == EXT_PHY2) |
| 3361 | sel_phy_idx = EXT_PHY1; |
| 3362 | } |
| 3363 | return LINK_CONFIG_IDX(sel_phy_idx); |
| 3364 | } |
| 3365 | |
Vladislav Zolotarov | bf61ee1 | 2011-07-21 07:56:51 +0000 | [diff] [blame] | 3366 | #if defined(NETDEV_FCOE_WWNN) && defined(BCM_CNIC) |
| 3367 | int bnx2x_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type) |
| 3368 | { |
| 3369 | struct bnx2x *bp = netdev_priv(dev); |
| 3370 | struct cnic_eth_dev *cp = &bp->cnic_eth_dev; |
| 3371 | |
| 3372 | switch (type) { |
| 3373 | case NETDEV_FCOE_WWNN: |
| 3374 | *wwn = HILO_U64(cp->fcoe_wwn_node_name_hi, |
| 3375 | cp->fcoe_wwn_node_name_lo); |
| 3376 | break; |
| 3377 | case NETDEV_FCOE_WWPN: |
| 3378 | *wwn = HILO_U64(cp->fcoe_wwn_port_name_hi, |
| 3379 | cp->fcoe_wwn_port_name_lo); |
| 3380 | break; |
| 3381 | default: |
| 3382 | return -EINVAL; |
| 3383 | } |
| 3384 | |
| 3385 | return 0; |
| 3386 | } |
| 3387 | #endif |
| 3388 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3389 | /* called with rtnl_lock */ |
| 3390 | int bnx2x_change_mtu(struct net_device *dev, int new_mtu) |
| 3391 | { |
| 3392 | struct bnx2x *bp = netdev_priv(dev); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3393 | |
| 3394 | if (bp->recovery_state != BNX2X_RECOVERY_DONE) { |
Joe Perches | f1deab5 | 2011-08-14 12:16:21 +0000 | [diff] [blame] | 3395 | pr_err("Handling parity error recovery. Try again later\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3396 | return -EAGAIN; |
| 3397 | } |
| 3398 | |
| 3399 | if ((new_mtu > ETH_MAX_JUMBO_PACKET_SIZE) || |
| 3400 | ((new_mtu + ETH_HLEN) < ETH_MIN_PACKET_SIZE)) |
| 3401 | return -EINVAL; |
| 3402 | |
| 3403 | /* This does not race with packet allocation |
| 3404 | * because the actual alloc size is |
| 3405 | * only updated as part of load |
| 3406 | */ |
| 3407 | dev->mtu = new_mtu; |
| 3408 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 3409 | return bnx2x_reload_if_running(dev); |
| 3410 | } |
| 3411 | |
| 3412 | u32 bnx2x_fix_features(struct net_device *dev, u32 features) |
| 3413 | { |
| 3414 | struct bnx2x *bp = netdev_priv(dev); |
| 3415 | |
| 3416 | /* TPA requires Rx CSUM offloading */ |
| 3417 | if (!(features & NETIF_F_RXCSUM) || bp->disable_tpa) |
| 3418 | features &= ~NETIF_F_LRO; |
| 3419 | |
| 3420 | return features; |
| 3421 | } |
| 3422 | |
| 3423 | int bnx2x_set_features(struct net_device *dev, u32 features) |
| 3424 | { |
| 3425 | struct bnx2x *bp = netdev_priv(dev); |
| 3426 | u32 flags = bp->flags; |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 3427 | bool bnx2x_reload = false; |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 3428 | |
| 3429 | if (features & NETIF_F_LRO) |
| 3430 | flags |= TPA_ENABLE_FLAG; |
| 3431 | else |
| 3432 | flags &= ~TPA_ENABLE_FLAG; |
| 3433 | |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 3434 | if (features & NETIF_F_LOOPBACK) { |
| 3435 | if (bp->link_params.loopback_mode != LOOPBACK_BMAC) { |
| 3436 | bp->link_params.loopback_mode = LOOPBACK_BMAC; |
| 3437 | bnx2x_reload = true; |
| 3438 | } |
| 3439 | } else { |
| 3440 | if (bp->link_params.loopback_mode != LOOPBACK_NONE) { |
| 3441 | bp->link_params.loopback_mode = LOOPBACK_NONE; |
| 3442 | bnx2x_reload = true; |
| 3443 | } |
| 3444 | } |
| 3445 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 3446 | if (flags ^ bp->flags) { |
| 3447 | bp->flags = flags; |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 3448 | bnx2x_reload = true; |
| 3449 | } |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 3450 | |
Mahesh Bandewar | 538dd2e | 2011-05-13 15:08:49 +0000 | [diff] [blame] | 3451 | if (bnx2x_reload) { |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 3452 | if (bp->recovery_state == BNX2X_RECOVERY_DONE) |
| 3453 | return bnx2x_reload_if_running(dev); |
| 3454 | /* else: bnx2x_nic_load() will be called at end of recovery */ |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3455 | } |
| 3456 | |
Michał Mirosław | 66371c4 | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 3457 | return 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3458 | } |
| 3459 | |
| 3460 | void bnx2x_tx_timeout(struct net_device *dev) |
| 3461 | { |
| 3462 | struct bnx2x *bp = netdev_priv(dev); |
| 3463 | |
| 3464 | #ifdef BNX2X_STOP_ON_ERROR |
| 3465 | if (!bp->panic) |
| 3466 | bnx2x_panic(); |
| 3467 | #endif |
Ariel Elior | 7be08a7 | 2011-07-14 08:31:19 +0000 | [diff] [blame] | 3468 | |
| 3469 | smp_mb__before_clear_bit(); |
| 3470 | set_bit(BNX2X_SP_RTNL_TX_TIMEOUT, &bp->sp_rtnl_state); |
| 3471 | smp_mb__after_clear_bit(); |
| 3472 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3473 | /* This allows the netif to be shutdown gracefully before resetting */ |
Ariel Elior | 7be08a7 | 2011-07-14 08:31:19 +0000 | [diff] [blame] | 3474 | schedule_delayed_work(&bp->sp_rtnl_task, 0); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3475 | } |
| 3476 | |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3477 | int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state) |
| 3478 | { |
| 3479 | struct net_device *dev = pci_get_drvdata(pdev); |
| 3480 | struct bnx2x *bp; |
| 3481 | |
| 3482 | if (!dev) { |
| 3483 | dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n"); |
| 3484 | return -ENODEV; |
| 3485 | } |
| 3486 | bp = netdev_priv(dev); |
| 3487 | |
| 3488 | rtnl_lock(); |
| 3489 | |
| 3490 | pci_save_state(pdev); |
| 3491 | |
| 3492 | if (!netif_running(dev)) { |
| 3493 | rtnl_unlock(); |
| 3494 | return 0; |
| 3495 | } |
| 3496 | |
| 3497 | netif_device_detach(dev); |
| 3498 | |
| 3499 | bnx2x_nic_unload(bp, UNLOAD_CLOSE); |
| 3500 | |
| 3501 | bnx2x_set_power_state(bp, pci_choose_state(pdev, state)); |
| 3502 | |
| 3503 | rtnl_unlock(); |
| 3504 | |
| 3505 | return 0; |
| 3506 | } |
| 3507 | |
| 3508 | int bnx2x_resume(struct pci_dev *pdev) |
| 3509 | { |
| 3510 | struct net_device *dev = pci_get_drvdata(pdev); |
| 3511 | struct bnx2x *bp; |
| 3512 | int rc; |
| 3513 | |
| 3514 | if (!dev) { |
| 3515 | dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n"); |
| 3516 | return -ENODEV; |
| 3517 | } |
| 3518 | bp = netdev_priv(dev); |
| 3519 | |
| 3520 | if (bp->recovery_state != BNX2X_RECOVERY_DONE) { |
Joe Perches | f1deab5 | 2011-08-14 12:16:21 +0000 | [diff] [blame] | 3521 | pr_err("Handling parity error recovery. Try again later\n"); |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3522 | return -EAGAIN; |
| 3523 | } |
| 3524 | |
| 3525 | rtnl_lock(); |
| 3526 | |
| 3527 | pci_restore_state(pdev); |
| 3528 | |
| 3529 | if (!netif_running(dev)) { |
| 3530 | rtnl_unlock(); |
| 3531 | return 0; |
| 3532 | } |
| 3533 | |
| 3534 | bnx2x_set_power_state(bp, PCI_D0); |
| 3535 | netif_device_attach(dev); |
| 3536 | |
Dmitry Kravkov | f2e0899 | 2010-10-06 03:28:26 +0000 | [diff] [blame] | 3537 | /* Since the chip was reset, clear the FW sequence number */ |
| 3538 | bp->fw_seq = 0; |
Dmitry Kravkov | 9f6c925 | 2010-07-27 12:34:34 +0000 | [diff] [blame] | 3539 | rc = bnx2x_nic_load(bp, LOAD_OPEN); |
| 3540 | |
| 3541 | rtnl_unlock(); |
| 3542 | |
| 3543 | return rc; |
| 3544 | } |
Vlad Zolotarov | 619c5cb | 2011-06-14 14:33:44 +0300 | [diff] [blame] | 3545 | |
| 3546 | |
| 3547 | void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt, |
| 3548 | u32 cid) |
| 3549 | { |
| 3550 | /* ustorm cxt validation */ |
| 3551 | cxt->ustorm_ag_context.cdu_usage = |
| 3552 | CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), |
| 3553 | CDU_REGION_NUMBER_UCM_AG, ETH_CONNECTION_TYPE); |
| 3554 | /* xcontext validation */ |
| 3555 | cxt->xstorm_ag_context.cdu_reserved = |
| 3556 | CDU_RSRVD_VALUE_TYPE_A(HW_CID(bp, cid), |
| 3557 | CDU_REGION_NUMBER_XCM_AG, ETH_CONNECTION_TYPE); |
| 3558 | } |
| 3559 | |
| 3560 | static inline void storm_memset_hc_timeout(struct bnx2x *bp, u8 port, |
| 3561 | u8 fw_sb_id, u8 sb_index, |
| 3562 | u8 ticks) |
| 3563 | { |
| 3564 | |
| 3565 | u32 addr = BAR_CSTRORM_INTMEM + |
| 3566 | CSTORM_STATUS_BLOCK_DATA_TIMEOUT_OFFSET(fw_sb_id, sb_index); |
| 3567 | REG_WR8(bp, addr, ticks); |
| 3568 | DP(NETIF_MSG_HW, "port %x fw_sb_id %d sb_index %d ticks %d\n", |
| 3569 | port, fw_sb_id, sb_index, ticks); |
| 3570 | } |
| 3571 | |
| 3572 | static inline void storm_memset_hc_disable(struct bnx2x *bp, u8 port, |
| 3573 | u16 fw_sb_id, u8 sb_index, |
| 3574 | u8 disable) |
| 3575 | { |
| 3576 | u32 enable_flag = disable ? 0 : (1 << HC_INDEX_DATA_HC_ENABLED_SHIFT); |
| 3577 | u32 addr = BAR_CSTRORM_INTMEM + |
| 3578 | CSTORM_STATUS_BLOCK_DATA_FLAGS_OFFSET(fw_sb_id, sb_index); |
| 3579 | u16 flags = REG_RD16(bp, addr); |
| 3580 | /* clear and set */ |
| 3581 | flags &= ~HC_INDEX_DATA_HC_ENABLED; |
| 3582 | flags |= enable_flag; |
| 3583 | REG_WR16(bp, addr, flags); |
| 3584 | DP(NETIF_MSG_HW, "port %x fw_sb_id %d sb_index %d disable %d\n", |
| 3585 | port, fw_sb_id, sb_index, disable); |
| 3586 | } |
| 3587 | |
| 3588 | void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id, |
| 3589 | u8 sb_index, u8 disable, u16 usec) |
| 3590 | { |
| 3591 | int port = BP_PORT(bp); |
| 3592 | u8 ticks = usec / BNX2X_BTR; |
| 3593 | |
| 3594 | storm_memset_hc_timeout(bp, port, fw_sb_id, sb_index, ticks); |
| 3595 | |
| 3596 | disable = disable ? 1 : (usec ? 0 : 1); |
| 3597 | storm_memset_hc_disable(bp, port, fw_sb_id, sb_index, disable); |
| 3598 | } |