Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Linux network driver for Brocade Converged Network Adapter. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License (GPL) Version 2 as |
| 6 | * published by the Free Software Foundation |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, but |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 11 | * General Public License for more details. |
| 12 | */ |
| 13 | /* |
| 14 | * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. |
| 15 | * All rights reserved |
| 16 | * www.brocade.com |
| 17 | */ |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 18 | #include <linux/bitops.h> |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 19 | #include <linux/netdevice.h> |
| 20 | #include <linux/skbuff.h> |
| 21 | #include <linux/etherdevice.h> |
| 22 | #include <linux/in.h> |
| 23 | #include <linux/ethtool.h> |
| 24 | #include <linux/if_vlan.h> |
| 25 | #include <linux/if_ether.h> |
| 26 | #include <linux/ip.h> |
Paul Gortmaker | 70c7160 | 2011-05-22 16:47:17 -0400 | [diff] [blame] | 27 | #include <linux/prefetch.h> |
Paul Gortmaker | 9d9779e | 2011-07-03 15:21:01 -0400 | [diff] [blame] | 28 | #include <linux/module.h> |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 29 | |
| 30 | #include "bnad.h" |
| 31 | #include "bna.h" |
| 32 | #include "cna.h" |
| 33 | |
Rasesh Mody | b7ee31c5 | 2010-10-05 15:46:05 +0000 | [diff] [blame] | 34 | static DEFINE_MUTEX(bnad_fwimg_mutex); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 35 | |
| 36 | /* |
| 37 | * Module params |
| 38 | */ |
| 39 | static uint bnad_msix_disable; |
| 40 | module_param(bnad_msix_disable, uint, 0444); |
| 41 | MODULE_PARM_DESC(bnad_msix_disable, "Disable MSIX mode"); |
| 42 | |
| 43 | static uint bnad_ioc_auto_recover = 1; |
| 44 | module_param(bnad_ioc_auto_recover, uint, 0444); |
| 45 | MODULE_PARM_DESC(bnad_ioc_auto_recover, "Enable / Disable auto recovery"); |
| 46 | |
Krishna Gudipati | 7afc5db | 2011-12-22 13:30:19 +0000 | [diff] [blame] | 47 | static uint bna_debugfs_enable = 1; |
| 48 | module_param(bna_debugfs_enable, uint, S_IRUGO | S_IWUSR); |
| 49 | MODULE_PARM_DESC(bna_debugfs_enable, "Enables debugfs feature, default=1," |
| 50 | " Range[false:0|true:1]"); |
| 51 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 52 | /* |
| 53 | * Global variables |
| 54 | */ |
stephen hemminger | 482da0f | 2013-12-13 16:40:10 -0800 | [diff] [blame] | 55 | static u32 bnad_rxqs_per_cq = 2; |
stephen hemminger | e1e0918 | 2012-01-04 13:02:24 +0000 | [diff] [blame] | 56 | static u32 bna_id; |
| 57 | static struct mutex bnad_list_mutex; |
| 58 | static LIST_HEAD(bnad_list); |
Rasesh Mody | b7ee31c5 | 2010-10-05 15:46:05 +0000 | [diff] [blame] | 59 | static const u8 bnad_bcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 60 | |
| 61 | /* |
| 62 | * Local MACROS |
| 63 | */ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 64 | #define BNAD_GET_MBOX_IRQ(_bnad) \ |
| 65 | (((_bnad)->cfg_flags & BNAD_CF_MSIX) ? \ |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 66 | ((_bnad)->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector) : \ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 67 | ((_bnad)->pcidev->irq)) |
| 68 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 69 | #define BNAD_FILL_UNMAPQ_MEM_REQ(_res_info, _num, _size) \ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 70 | do { \ |
| 71 | (_res_info)->res_type = BNA_RES_T_MEM; \ |
| 72 | (_res_info)->res_u.mem_info.mem_type = BNA_MEM_T_KVA; \ |
| 73 | (_res_info)->res_u.mem_info.num = (_num); \ |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 74 | (_res_info)->res_u.mem_info.len = (_size); \ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 75 | } while (0) |
| 76 | |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 77 | static void |
| 78 | bnad_add_to_list(struct bnad *bnad) |
| 79 | { |
| 80 | mutex_lock(&bnad_list_mutex); |
| 81 | list_add_tail(&bnad->list_entry, &bnad_list); |
| 82 | bnad->id = bna_id++; |
| 83 | mutex_unlock(&bnad_list_mutex); |
| 84 | } |
| 85 | |
| 86 | static void |
| 87 | bnad_remove_from_list(struct bnad *bnad) |
| 88 | { |
| 89 | mutex_lock(&bnad_list_mutex); |
| 90 | list_del(&bnad->list_entry); |
| 91 | mutex_unlock(&bnad_list_mutex); |
| 92 | } |
| 93 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 94 | /* |
| 95 | * Reinitialize completions in CQ, once Rx is taken down |
| 96 | */ |
| 97 | static void |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 98 | bnad_cq_cleanup(struct bnad *bnad, struct bna_ccb *ccb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 99 | { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 100 | struct bna_cq_entry *cmpl; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 101 | int i; |
| 102 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 103 | for (i = 0; i < ccb->q_depth; i++) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 104 | cmpl = &((struct bna_cq_entry *)ccb->sw_q)[i]; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 105 | cmpl->valid = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 106 | } |
| 107 | } |
| 108 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 109 | /* Tx Datapath functions */ |
| 110 | |
| 111 | |
| 112 | /* Caller should ensure that the entry at unmap_q[index] is valid */ |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 113 | static u32 |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 114 | bnad_tx_buff_unmap(struct bnad *bnad, |
| 115 | struct bnad_tx_unmap *unmap_q, |
| 116 | u32 q_depth, u32 index) |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 117 | { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 118 | struct bnad_tx_unmap *unmap; |
| 119 | struct sk_buff *skb; |
| 120 | int vector, nvecs; |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 121 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 122 | unmap = &unmap_q[index]; |
| 123 | nvecs = unmap->nvecs; |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 124 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 125 | skb = unmap->skb; |
| 126 | unmap->skb = NULL; |
| 127 | unmap->nvecs = 0; |
| 128 | dma_unmap_single(&bnad->pcidev->dev, |
| 129 | dma_unmap_addr(&unmap->vectors[0], dma_addr), |
| 130 | skb_headlen(skb), DMA_TO_DEVICE); |
| 131 | dma_unmap_addr_set(&unmap->vectors[0], dma_addr, 0); |
| 132 | nvecs--; |
| 133 | |
| 134 | vector = 0; |
| 135 | while (nvecs) { |
| 136 | vector++; |
| 137 | if (vector == BFI_TX_MAX_VECTORS_PER_WI) { |
| 138 | vector = 0; |
| 139 | BNA_QE_INDX_INC(index, q_depth); |
| 140 | unmap = &unmap_q[index]; |
| 141 | } |
| 142 | |
| 143 | dma_unmap_page(&bnad->pcidev->dev, |
| 144 | dma_unmap_addr(&unmap->vectors[vector], dma_addr), |
Rasesh Mody | 24f5d33 | 2013-12-17 17:07:40 -0800 | [diff] [blame] | 145 | dma_unmap_len(&unmap->vectors[vector], dma_len), |
| 146 | DMA_TO_DEVICE); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 147 | dma_unmap_addr_set(&unmap->vectors[vector], dma_addr, 0); |
| 148 | nvecs--; |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 149 | } |
| 150 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 151 | BNA_QE_INDX_INC(index, q_depth); |
| 152 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 153 | return index; |
| 154 | } |
| 155 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 156 | /* |
| 157 | * Frees all pending Tx Bufs |
| 158 | * At this point no activity is expected on the Q, |
| 159 | * so DMA unmap & freeing is fine. |
| 160 | */ |
| 161 | static void |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 162 | bnad_txq_cleanup(struct bnad *bnad, struct bna_tcb *tcb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 163 | { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 164 | struct bnad_tx_unmap *unmap_q = tcb->unmap_q; |
| 165 | struct sk_buff *skb; |
| 166 | int i; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 167 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 168 | for (i = 0; i < tcb->q_depth; i++) { |
| 169 | skb = unmap_q[i].skb; |
Rasesh Mody | 938fa48 | 2011-08-30 15:27:47 +0000 | [diff] [blame] | 170 | if (!skb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 171 | continue; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 172 | bnad_tx_buff_unmap(bnad, unmap_q, tcb->q_depth, i); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 173 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 174 | dev_kfree_skb_any(skb); |
| 175 | } |
| 176 | } |
| 177 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 178 | /* |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 179 | * bnad_txcmpl_process : Frees the Tx bufs on Tx completion |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 180 | * Can be called in a) Interrupt context |
| 181 | * b) Sending context |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 182 | */ |
| 183 | static u32 |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 184 | bnad_txcmpl_process(struct bnad *bnad, struct bna_tcb *tcb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 185 | { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 186 | u32 sent_packets = 0, sent_bytes = 0; |
| 187 | u32 wis, unmap_wis, hw_cons, cons, q_depth; |
| 188 | struct bnad_tx_unmap *unmap_q = tcb->unmap_q; |
| 189 | struct bnad_tx_unmap *unmap; |
| 190 | struct sk_buff *skb; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 191 | |
Jing Huang | d95d108 | 2012-04-04 05:43:48 +0000 | [diff] [blame] | 192 | /* Just return if TX is stopped */ |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 193 | if (!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 194 | return 0; |
| 195 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 196 | hw_cons = *(tcb->hw_consumer_index); |
| 197 | cons = tcb->consumer_index; |
| 198 | q_depth = tcb->q_depth; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 199 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 200 | wis = BNA_Q_INDEX_CHANGE(cons, hw_cons, q_depth); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 201 | BUG_ON(!(wis <= BNA_QE_IN_USE_CNT(tcb, tcb->q_depth))); |
| 202 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 203 | while (wis) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 204 | unmap = &unmap_q[cons]; |
| 205 | |
| 206 | skb = unmap->skb; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 207 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 208 | sent_packets++; |
| 209 | sent_bytes += skb->len; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 210 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 211 | unmap_wis = BNA_TXQ_WI_NEEDED(unmap->nvecs); |
| 212 | wis -= unmap_wis; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 213 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 214 | cons = bnad_tx_buff_unmap(bnad, unmap_q, q_depth, cons); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 215 | dev_kfree_skb_any(skb); |
| 216 | } |
| 217 | |
| 218 | /* Update consumer pointers. */ |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 219 | tcb->consumer_index = hw_cons; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 220 | |
| 221 | tcb->txq->tx_packets += sent_packets; |
| 222 | tcb->txq->tx_bytes += sent_bytes; |
| 223 | |
| 224 | return sent_packets; |
| 225 | } |
| 226 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 227 | static u32 |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 228 | bnad_tx_complete(struct bnad *bnad, struct bna_tcb *tcb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 229 | { |
| 230 | struct net_device *netdev = bnad->netdev; |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 231 | u32 sent = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 232 | |
| 233 | if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) |
| 234 | return 0; |
| 235 | |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 236 | sent = bnad_txcmpl_process(bnad, tcb); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 237 | if (sent) { |
| 238 | if (netif_queue_stopped(netdev) && |
| 239 | netif_carrier_ok(netdev) && |
| 240 | BNA_QE_FREE_CNT(tcb, tcb->q_depth) >= |
| 241 | BNAD_NETIF_WAKE_THRESHOLD) { |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 242 | if (test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) { |
| 243 | netif_wake_queue(netdev); |
| 244 | BNAD_UPDATE_CTR(bnad, netif_queue_wakeup); |
| 245 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 246 | } |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 247 | } |
| 248 | |
| 249 | if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 250 | bna_ib_ack(tcb->i_dbell, sent); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 251 | |
| 252 | smp_mb__before_clear_bit(); |
| 253 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); |
| 254 | |
| 255 | return sent; |
| 256 | } |
| 257 | |
| 258 | /* MSIX Tx Completion Handler */ |
| 259 | static irqreturn_t |
| 260 | bnad_msix_tx(int irq, void *data) |
| 261 | { |
| 262 | struct bna_tcb *tcb = (struct bna_tcb *)data; |
| 263 | struct bnad *bnad = tcb->bnad; |
| 264 | |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 265 | bnad_tx_complete(bnad, tcb); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 266 | |
| 267 | return IRQ_HANDLED; |
| 268 | } |
| 269 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 270 | static inline void |
| 271 | bnad_rxq_alloc_uninit(struct bnad *bnad, struct bna_rcb *rcb) |
| 272 | { |
| 273 | struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q; |
| 274 | |
| 275 | unmap_q->reuse_pi = -1; |
| 276 | unmap_q->alloc_order = -1; |
| 277 | unmap_q->map_size = 0; |
| 278 | unmap_q->type = BNAD_RXBUF_NONE; |
| 279 | } |
| 280 | |
| 281 | /* Default is page-based allocation. Multi-buffer support - TBD */ |
| 282 | static int |
| 283 | bnad_rxq_alloc_init(struct bnad *bnad, struct bna_rcb *rcb) |
| 284 | { |
| 285 | struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q; |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 286 | int order; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 287 | |
| 288 | bnad_rxq_alloc_uninit(bnad, rcb); |
| 289 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 290 | order = get_order(rcb->rxq->buffer_size); |
| 291 | |
| 292 | unmap_q->type = BNAD_RXBUF_PAGE; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 293 | |
| 294 | if (bna_is_small_rxq(rcb->id)) { |
| 295 | unmap_q->alloc_order = 0; |
| 296 | unmap_q->map_size = rcb->rxq->buffer_size; |
| 297 | } else { |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 298 | if (rcb->rxq->multi_buffer) { |
| 299 | unmap_q->alloc_order = 0; |
| 300 | unmap_q->map_size = rcb->rxq->buffer_size; |
| 301 | unmap_q->type = BNAD_RXBUF_MULTI_BUFF; |
| 302 | } else { |
| 303 | unmap_q->alloc_order = order; |
| 304 | unmap_q->map_size = |
| 305 | (rcb->rxq->buffer_size > 2048) ? |
| 306 | PAGE_SIZE << order : 2048; |
| 307 | } |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 308 | } |
| 309 | |
| 310 | BUG_ON(((PAGE_SIZE << order) % unmap_q->map_size)); |
| 311 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 312 | return 0; |
| 313 | } |
| 314 | |
| 315 | static inline void |
| 316 | bnad_rxq_cleanup_page(struct bnad *bnad, struct bnad_rx_unmap *unmap) |
| 317 | { |
| 318 | if (!unmap->page) |
| 319 | return; |
| 320 | |
| 321 | dma_unmap_page(&bnad->pcidev->dev, |
| 322 | dma_unmap_addr(&unmap->vector, dma_addr), |
| 323 | unmap->vector.len, DMA_FROM_DEVICE); |
| 324 | put_page(unmap->page); |
| 325 | unmap->page = NULL; |
| 326 | dma_unmap_addr_set(&unmap->vector, dma_addr, 0); |
| 327 | unmap->vector.len = 0; |
| 328 | } |
| 329 | |
| 330 | static inline void |
| 331 | bnad_rxq_cleanup_skb(struct bnad *bnad, struct bnad_rx_unmap *unmap) |
| 332 | { |
| 333 | if (!unmap->skb) |
| 334 | return; |
| 335 | |
| 336 | dma_unmap_single(&bnad->pcidev->dev, |
| 337 | dma_unmap_addr(&unmap->vector, dma_addr), |
| 338 | unmap->vector.len, DMA_FROM_DEVICE); |
| 339 | dev_kfree_skb_any(unmap->skb); |
| 340 | unmap->skb = NULL; |
| 341 | dma_unmap_addr_set(&unmap->vector, dma_addr, 0); |
| 342 | unmap->vector.len = 0; |
| 343 | } |
| 344 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 345 | static void |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 346 | bnad_rxq_cleanup(struct bnad *bnad, struct bna_rcb *rcb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 347 | { |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 348 | struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 349 | int i; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 350 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 351 | for (i = 0; i < rcb->q_depth; i++) { |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 352 | struct bnad_rx_unmap *unmap = &unmap_q->unmap[i]; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 353 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 354 | if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 355 | bnad_rxq_cleanup_skb(bnad, unmap); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 356 | else |
| 357 | bnad_rxq_cleanup_page(bnad, unmap); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 358 | } |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 359 | bnad_rxq_alloc_uninit(bnad, rcb); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 360 | } |
| 361 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 362 | static u32 |
| 363 | bnad_rxq_refill_page(struct bnad *bnad, struct bna_rcb *rcb, u32 nalloc) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 364 | { |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 365 | u32 alloced, prod, q_depth; |
| 366 | struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q; |
| 367 | struct bnad_rx_unmap *unmap, *prev; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 368 | struct bna_rxq_entry *rxent; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 369 | struct page *page; |
| 370 | u32 page_offset, alloc_size; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 371 | dma_addr_t dma_addr; |
| 372 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 373 | prod = rcb->producer_index; |
| 374 | q_depth = rcb->q_depth; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 375 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 376 | alloc_size = PAGE_SIZE << unmap_q->alloc_order; |
| 377 | alloced = 0; |
| 378 | |
| 379 | while (nalloc--) { |
| 380 | unmap = &unmap_q->unmap[prod]; |
| 381 | |
| 382 | if (unmap_q->reuse_pi < 0) { |
| 383 | page = alloc_pages(GFP_ATOMIC | __GFP_COMP, |
| 384 | unmap_q->alloc_order); |
| 385 | page_offset = 0; |
| 386 | } else { |
| 387 | prev = &unmap_q->unmap[unmap_q->reuse_pi]; |
| 388 | page = prev->page; |
| 389 | page_offset = prev->page_offset + unmap_q->map_size; |
| 390 | get_page(page); |
| 391 | } |
| 392 | |
| 393 | if (unlikely(!page)) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 394 | BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed); |
Rasesh Mody | 3caa1e95 | 2011-08-30 15:27:42 +0000 | [diff] [blame] | 395 | rcb->rxq->rxbuf_alloc_failed++; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 396 | goto finishing; |
| 397 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 398 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 399 | dma_addr = dma_map_page(&bnad->pcidev->dev, page, page_offset, |
| 400 | unmap_q->map_size, DMA_FROM_DEVICE); |
| 401 | |
| 402 | unmap->page = page; |
| 403 | unmap->page_offset = page_offset; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 404 | dma_unmap_addr_set(&unmap->vector, dma_addr, dma_addr); |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 405 | unmap->vector.len = unmap_q->map_size; |
| 406 | page_offset += unmap_q->map_size; |
| 407 | |
| 408 | if (page_offset < alloc_size) |
| 409 | unmap_q->reuse_pi = prod; |
| 410 | else |
| 411 | unmap_q->reuse_pi = -1; |
| 412 | |
| 413 | rxent = &((struct bna_rxq_entry *)rcb->sw_q)[prod]; |
| 414 | BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 415 | BNA_QE_INDX_INC(prod, q_depth); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 416 | alloced++; |
| 417 | } |
| 418 | |
| 419 | finishing: |
| 420 | if (likely(alloced)) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 421 | rcb->producer_index = prod; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 422 | smp_mb(); |
Rasesh Mody | 5bcf6ac | 2011-09-27 10:39:10 +0000 | [diff] [blame] | 423 | if (likely(test_bit(BNAD_RXQ_POST_OK, &rcb->flags))) |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 424 | bna_rxq_prod_indx_doorbell(rcb); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 425 | } |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 426 | |
| 427 | return alloced; |
| 428 | } |
| 429 | |
| 430 | static u32 |
| 431 | bnad_rxq_refill_skb(struct bnad *bnad, struct bna_rcb *rcb, u32 nalloc) |
| 432 | { |
| 433 | u32 alloced, prod, q_depth, buff_sz; |
| 434 | struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q; |
| 435 | struct bnad_rx_unmap *unmap; |
| 436 | struct bna_rxq_entry *rxent; |
| 437 | struct sk_buff *skb; |
| 438 | dma_addr_t dma_addr; |
| 439 | |
| 440 | buff_sz = rcb->rxq->buffer_size; |
| 441 | prod = rcb->producer_index; |
| 442 | q_depth = rcb->q_depth; |
| 443 | |
| 444 | alloced = 0; |
| 445 | while (nalloc--) { |
| 446 | unmap = &unmap_q->unmap[prod]; |
| 447 | |
| 448 | skb = netdev_alloc_skb_ip_align(bnad->netdev, buff_sz); |
| 449 | |
| 450 | if (unlikely(!skb)) { |
| 451 | BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed); |
| 452 | rcb->rxq->rxbuf_alloc_failed++; |
| 453 | goto finishing; |
| 454 | } |
| 455 | dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data, |
| 456 | buff_sz, DMA_FROM_DEVICE); |
| 457 | |
| 458 | unmap->skb = skb; |
| 459 | dma_unmap_addr_set(&unmap->vector, dma_addr, dma_addr); |
| 460 | unmap->vector.len = buff_sz; |
| 461 | |
| 462 | rxent = &((struct bna_rxq_entry *)rcb->sw_q)[prod]; |
| 463 | BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr); |
| 464 | BNA_QE_INDX_INC(prod, q_depth); |
| 465 | alloced++; |
| 466 | } |
| 467 | |
| 468 | finishing: |
| 469 | if (likely(alloced)) { |
| 470 | rcb->producer_index = prod; |
| 471 | smp_mb(); |
| 472 | if (likely(test_bit(BNAD_RXQ_POST_OK, &rcb->flags))) |
| 473 | bna_rxq_prod_indx_doorbell(rcb); |
| 474 | } |
| 475 | |
| 476 | return alloced; |
| 477 | } |
| 478 | |
| 479 | static inline void |
| 480 | bnad_rxq_post(struct bnad *bnad, struct bna_rcb *rcb) |
| 481 | { |
| 482 | struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q; |
| 483 | u32 to_alloc; |
| 484 | |
| 485 | to_alloc = BNA_QE_FREE_CNT(rcb, rcb->q_depth); |
| 486 | if (!(to_alloc >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT)) |
| 487 | return; |
| 488 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 489 | if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 490 | bnad_rxq_refill_skb(bnad, rcb, to_alloc); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 491 | else |
| 492 | bnad_rxq_refill_page(bnad, rcb, to_alloc); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 493 | } |
| 494 | |
Rasesh Mody | 5e46631f | 2012-12-11 12:24:50 +0000 | [diff] [blame] | 495 | #define flags_cksum_prot_mask (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \ |
| 496 | BNA_CQ_EF_IPV6 | \ |
| 497 | BNA_CQ_EF_TCP | BNA_CQ_EF_UDP | \ |
| 498 | BNA_CQ_EF_L4_CKSUM_OK) |
| 499 | |
| 500 | #define flags_tcp4 (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \ |
| 501 | BNA_CQ_EF_TCP | BNA_CQ_EF_L4_CKSUM_OK) |
| 502 | #define flags_tcp6 (BNA_CQ_EF_IPV6 | \ |
| 503 | BNA_CQ_EF_TCP | BNA_CQ_EF_L4_CKSUM_OK) |
| 504 | #define flags_udp4 (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \ |
| 505 | BNA_CQ_EF_UDP | BNA_CQ_EF_L4_CKSUM_OK) |
| 506 | #define flags_udp6 (BNA_CQ_EF_IPV6 | \ |
| 507 | BNA_CQ_EF_UDP | BNA_CQ_EF_L4_CKSUM_OK) |
| 508 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 509 | static void |
| 510 | bnad_cq_drop_packet(struct bnad *bnad, struct bna_rcb *rcb, |
| 511 | u32 sop_ci, u32 nvecs) |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 512 | { |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 513 | struct bnad_rx_unmap_q *unmap_q; |
| 514 | struct bnad_rx_unmap *unmap; |
| 515 | u32 ci, vec; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 516 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 517 | unmap_q = rcb->unmap_q; |
| 518 | for (vec = 0, ci = sop_ci; vec < nvecs; vec++) { |
| 519 | unmap = &unmap_q->unmap[ci]; |
| 520 | BNA_QE_INDX_INC(ci, rcb->q_depth); |
| 521 | |
| 522 | if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) |
| 523 | bnad_rxq_cleanup_skb(bnad, unmap); |
| 524 | else |
| 525 | bnad_rxq_cleanup_page(bnad, unmap); |
| 526 | } |
| 527 | } |
| 528 | |
| 529 | static void |
| 530 | bnad_cq_setup_skb_frags(struct bna_rcb *rcb, struct sk_buff *skb, |
| 531 | u32 sop_ci, u32 nvecs, u32 last_fraglen) |
| 532 | { |
| 533 | struct bnad *bnad; |
| 534 | u32 ci, vec, len, totlen = 0; |
| 535 | struct bnad_rx_unmap_q *unmap_q; |
| 536 | struct bnad_rx_unmap *unmap; |
| 537 | |
| 538 | unmap_q = rcb->unmap_q; |
| 539 | bnad = rcb->bnad; |
Rasesh Mody | 66f9513 | 2013-12-17 17:07:36 -0800 | [diff] [blame] | 540 | |
| 541 | /* prefetch header */ |
| 542 | prefetch(page_address(unmap_q->unmap[sop_ci].page) + |
| 543 | unmap_q->unmap[sop_ci].page_offset); |
| 544 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 545 | for (vec = 1, ci = sop_ci; vec <= nvecs; vec++) { |
| 546 | unmap = &unmap_q->unmap[ci]; |
| 547 | BNA_QE_INDX_INC(ci, rcb->q_depth); |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 548 | |
| 549 | dma_unmap_page(&bnad->pcidev->dev, |
| 550 | dma_unmap_addr(&unmap->vector, dma_addr), |
| 551 | unmap->vector.len, DMA_FROM_DEVICE); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 552 | |
| 553 | len = (vec == nvecs) ? |
| 554 | last_fraglen : unmap->vector.len; |
| 555 | totlen += len; |
| 556 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 557 | skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags, |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 558 | unmap->page, unmap->page_offset, len); |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 559 | |
| 560 | unmap->page = NULL; |
| 561 | unmap->vector.len = 0; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 562 | } |
| 563 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 564 | skb->len += totlen; |
| 565 | skb->data_len += totlen; |
| 566 | skb->truesize += totlen; |
| 567 | } |
| 568 | |
| 569 | static inline void |
| 570 | bnad_cq_setup_skb(struct bnad *bnad, struct sk_buff *skb, |
| 571 | struct bnad_rx_unmap *unmap, u32 len) |
| 572 | { |
| 573 | prefetch(skb->data); |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 574 | |
| 575 | dma_unmap_single(&bnad->pcidev->dev, |
| 576 | dma_unmap_addr(&unmap->vector, dma_addr), |
| 577 | unmap->vector.len, DMA_FROM_DEVICE); |
| 578 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 579 | skb_put(skb, len); |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 580 | skb->protocol = eth_type_trans(skb, bnad->netdev); |
| 581 | |
| 582 | unmap->skb = NULL; |
| 583 | unmap->vector.len = 0; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 584 | } |
| 585 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 586 | static u32 |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 587 | bnad_cq_process(struct bnad *bnad, struct bna_ccb *ccb, int budget) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 588 | { |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 589 | struct bna_cq_entry *cq, *cmpl, *next_cmpl; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 590 | struct bna_rcb *rcb = NULL; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 591 | struct bnad_rx_unmap_q *unmap_q; |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 592 | struct bnad_rx_unmap *unmap = NULL; |
| 593 | struct sk_buff *skb = NULL; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 594 | struct bna_pkt_rate *pkt_rt = &ccb->pkt_rate; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 595 | struct bnad_rx_ctrl *rx_ctrl = ccb->ctrl; |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 596 | u32 packets = 0, len = 0, totlen = 0; |
| 597 | u32 pi, vec, sop_ci = 0, nvecs = 0; |
| 598 | u32 flags, masked_flags; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 599 | |
| 600 | prefetch(bnad->netdev); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 601 | |
| 602 | cq = ccb->sw_q; |
| 603 | cmpl = &cq[ccb->producer_index]; |
| 604 | |
Rasesh Mody | 17a30a1 | 2013-12-17 17:07:37 -0800 | [diff] [blame] | 605 | while (packets < budget) { |
| 606 | if (!cmpl->valid) |
| 607 | break; |
| 608 | /* The 'valid' field is set by the adapter, only after writing |
| 609 | * the other fields of completion entry. Hence, do not load |
| 610 | * other fields of completion entry *before* the 'valid' is |
| 611 | * loaded. Adding the rmb() here prevents the compiler and/or |
| 612 | * CPU from reordering the reads which would potentially result |
| 613 | * in reading stale values in completion entry. |
| 614 | */ |
| 615 | rmb(); |
| 616 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 617 | BNA_UPDATE_PKT_CNT(pkt_rt, ntohs(cmpl->length)); |
| 618 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 619 | if (bna_is_small_rxq(cmpl->rxq_id)) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 620 | rcb = ccb->rcb[1]; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 621 | else |
| 622 | rcb = ccb->rcb[0]; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 623 | |
| 624 | unmap_q = rcb->unmap_q; |
| 625 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 626 | /* start of packet ci */ |
| 627 | sop_ci = rcb->consumer_index; |
| 628 | |
| 629 | if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) { |
| 630 | unmap = &unmap_q->unmap[sop_ci]; |
| 631 | skb = unmap->skb; |
| 632 | } else { |
| 633 | skb = napi_get_frags(&rx_ctrl->napi); |
| 634 | if (unlikely(!skb)) |
| 635 | break; |
| 636 | } |
| 637 | prefetch(skb); |
| 638 | |
| 639 | flags = ntohl(cmpl->flags); |
| 640 | len = ntohs(cmpl->length); |
| 641 | totlen = len; |
| 642 | nvecs = 1; |
| 643 | |
| 644 | /* Check all the completions for this frame. |
| 645 | * busy-wait doesn't help much, break here. |
| 646 | */ |
| 647 | if (BNAD_RXBUF_IS_MULTI_BUFF(unmap_q->type) && |
| 648 | (flags & BNA_CQ_EF_EOP) == 0) { |
| 649 | pi = ccb->producer_index; |
| 650 | do { |
| 651 | BNA_QE_INDX_INC(pi, ccb->q_depth); |
| 652 | next_cmpl = &cq[pi]; |
| 653 | |
| 654 | if (!next_cmpl->valid) |
| 655 | break; |
Rasesh Mody | 17a30a1 | 2013-12-17 17:07:37 -0800 | [diff] [blame] | 656 | /* The 'valid' field is set by the adapter, only |
| 657 | * after writing the other fields of completion |
| 658 | * entry. Hence, do not load other fields of |
| 659 | * completion entry *before* the 'valid' is |
| 660 | * loaded. Adding the rmb() here prevents the |
| 661 | * compiler and/or CPU from reordering the reads |
| 662 | * which would potentially result in reading |
| 663 | * stale values in completion entry. |
| 664 | */ |
| 665 | rmb(); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 666 | |
| 667 | len = ntohs(next_cmpl->length); |
| 668 | flags = ntohl(next_cmpl->flags); |
| 669 | |
| 670 | nvecs++; |
| 671 | totlen += len; |
| 672 | } while ((flags & BNA_CQ_EF_EOP) == 0); |
| 673 | |
| 674 | if (!next_cmpl->valid) |
| 675 | break; |
| 676 | } |
| 677 | |
| 678 | /* TODO: BNA_CQ_EF_LOCAL ? */ |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 679 | if (unlikely(flags & (BNA_CQ_EF_MAC_ERROR | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 680 | BNA_CQ_EF_FCS_ERROR | |
| 681 | BNA_CQ_EF_TOO_LONG))) { |
| 682 | bnad_cq_drop_packet(bnad, rcb, sop_ci, nvecs); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 683 | rcb->rxq->rx_packets_with_error++; |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 684 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 685 | goto next; |
| 686 | } |
| 687 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 688 | if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) |
| 689 | bnad_cq_setup_skb(bnad, skb, unmap, len); |
| 690 | else |
| 691 | bnad_cq_setup_skb_frags(rcb, skb, sop_ci, nvecs, len); |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 692 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 693 | packets++; |
| 694 | rcb->rxq->rx_packets++; |
| 695 | rcb->rxq->rx_bytes += totlen; |
| 696 | ccb->bytes_per_intr += totlen; |
Rasesh Mody | 5e46631f | 2012-12-11 12:24:50 +0000 | [diff] [blame] | 697 | |
| 698 | masked_flags = flags & flags_cksum_prot_mask; |
| 699 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 700 | if (likely |
Michał Mirosław | e5ee20e | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 701 | ((bnad->netdev->features & NETIF_F_RXCSUM) && |
Rasesh Mody | 5e46631f | 2012-12-11 12:24:50 +0000 | [diff] [blame] | 702 | ((masked_flags == flags_tcp4) || |
| 703 | (masked_flags == flags_udp4) || |
| 704 | (masked_flags == flags_tcp6) || |
| 705 | (masked_flags == flags_udp6)))) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 706 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 707 | else |
Eric Dumazet | bc8acf2 | 2010-09-02 13:07:41 -0700 | [diff] [blame] | 708 | skb_checksum_none_assert(skb); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 709 | |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 710 | if (flags & BNA_CQ_EF_VLAN) |
Patrick McHardy | 86a9bad | 2013-04-19 02:04:30 +0000 | [diff] [blame] | 711 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), ntohs(cmpl->vlan_tag)); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 712 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 713 | if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 714 | netif_receive_skb(skb); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 715 | else |
| 716 | napi_gro_frags(&rx_ctrl->napi); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 717 | |
| 718 | next: |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 719 | BNA_QE_INDX_ADD(rcb->consumer_index, nvecs, rcb->q_depth); |
| 720 | for (vec = 0; vec < nvecs; vec++) { |
| 721 | cmpl = &cq[ccb->producer_index]; |
| 722 | cmpl->valid = 0; |
| 723 | BNA_QE_INDX_INC(ccb->producer_index, ccb->q_depth); |
| 724 | } |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 725 | cmpl = &cq[ccb->producer_index]; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 726 | } |
| 727 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 728 | napi_gro_flush(&rx_ctrl->napi, false); |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 729 | if (likely(test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags))) |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 730 | bna_ib_ack_disable_irq(ccb->i_dbell, packets); |
| 731 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 732 | bnad_rxq_post(bnad, ccb->rcb[0]); |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 733 | if (ccb->rcb[1]) |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 734 | bnad_rxq_post(bnad, ccb->rcb[1]); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 735 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 736 | return packets; |
| 737 | } |
| 738 | |
| 739 | static void |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 740 | bnad_netif_rx_schedule_poll(struct bnad *bnad, struct bna_ccb *ccb) |
| 741 | { |
| 742 | struct bnad_rx_ctrl *rx_ctrl = (struct bnad_rx_ctrl *)(ccb->ctrl); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 743 | struct napi_struct *napi = &rx_ctrl->napi; |
| 744 | |
| 745 | if (likely(napi_schedule_prep(napi))) { |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 746 | __napi_schedule(napi); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 747 | rx_ctrl->rx_schedule++; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 748 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 749 | } |
| 750 | |
| 751 | /* MSIX Rx Path Handler */ |
| 752 | static irqreturn_t |
| 753 | bnad_msix_rx(int irq, void *data) |
| 754 | { |
| 755 | struct bna_ccb *ccb = (struct bna_ccb *)data; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 756 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 757 | if (ccb) { |
| 758 | ((struct bnad_rx_ctrl *)(ccb->ctrl))->rx_intr_ctr++; |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 759 | bnad_netif_rx_schedule_poll(ccb->bnad, ccb); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 760 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 761 | |
| 762 | return IRQ_HANDLED; |
| 763 | } |
| 764 | |
| 765 | /* Interrupt handlers */ |
| 766 | |
| 767 | /* Mbox Interrupt Handlers */ |
| 768 | static irqreturn_t |
| 769 | bnad_msix_mbox_handler(int irq, void *data) |
| 770 | { |
| 771 | u32 intr_status; |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 772 | unsigned long flags; |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 773 | struct bnad *bnad = (struct bnad *)data; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 774 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 775 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | dfee325 | 2011-08-30 15:27:45 +0000 | [diff] [blame] | 776 | if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))) { |
| 777 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 778 | return IRQ_HANDLED; |
| 779 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 780 | |
| 781 | bna_intr_status_get(&bnad->bna, intr_status); |
| 782 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 783 | if (BNA_IS_MBOX_ERR_INTR(&bnad->bna, intr_status)) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 784 | bna_mbox_handler(&bnad->bna, intr_status); |
| 785 | |
| 786 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 787 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 788 | return IRQ_HANDLED; |
| 789 | } |
| 790 | |
| 791 | static irqreturn_t |
| 792 | bnad_isr(int irq, void *data) |
| 793 | { |
| 794 | int i, j; |
| 795 | u32 intr_status; |
| 796 | unsigned long flags; |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 797 | struct bnad *bnad = (struct bnad *)data; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 798 | struct bnad_rx_info *rx_info; |
| 799 | struct bnad_rx_ctrl *rx_ctrl; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 800 | struct bna_tcb *tcb = NULL; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 801 | |
Rasesh Mody | dfee325 | 2011-08-30 15:27:45 +0000 | [diff] [blame] | 802 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 803 | if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))) { |
| 804 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 805 | return IRQ_NONE; |
Rasesh Mody | dfee325 | 2011-08-30 15:27:45 +0000 | [diff] [blame] | 806 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 807 | |
| 808 | bna_intr_status_get(&bnad->bna, intr_status); |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 809 | |
Rasesh Mody | dfee325 | 2011-08-30 15:27:45 +0000 | [diff] [blame] | 810 | if (unlikely(!intr_status)) { |
| 811 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 812 | return IRQ_NONE; |
Rasesh Mody | dfee325 | 2011-08-30 15:27:45 +0000 | [diff] [blame] | 813 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 814 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 815 | if (BNA_IS_MBOX_ERR_INTR(&bnad->bna, intr_status)) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 816 | bna_mbox_handler(&bnad->bna, intr_status); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 817 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 818 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 819 | |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 820 | if (!BNA_IS_INTX_DATA_INTR(intr_status)) |
| 821 | return IRQ_HANDLED; |
| 822 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 823 | /* Process data interrupts */ |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 824 | /* Tx processing */ |
| 825 | for (i = 0; i < bnad->num_tx; i++) { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 826 | for (j = 0; j < bnad->num_txq_per_tx; j++) { |
| 827 | tcb = bnad->tx_info[i].tcb[j]; |
| 828 | if (tcb && test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 829 | bnad_tx_complete(bnad, bnad->tx_info[i].tcb[j]); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 830 | } |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 831 | } |
| 832 | /* Rx processing */ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 833 | for (i = 0; i < bnad->num_rx; i++) { |
| 834 | rx_info = &bnad->rx_info[i]; |
| 835 | if (!rx_info->rx) |
| 836 | continue; |
| 837 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { |
| 838 | rx_ctrl = &rx_info->rx_ctrl[j]; |
| 839 | if (rx_ctrl->ccb) |
| 840 | bnad_netif_rx_schedule_poll(bnad, |
| 841 | rx_ctrl->ccb); |
| 842 | } |
| 843 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 844 | return IRQ_HANDLED; |
| 845 | } |
| 846 | |
| 847 | /* |
| 848 | * Called in interrupt / callback context |
| 849 | * with bna_lock held, so cfg_flags access is OK |
| 850 | */ |
| 851 | static void |
| 852 | bnad_enable_mbox_irq(struct bnad *bnad) |
| 853 | { |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 854 | clear_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags); |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 855 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 856 | BNAD_UPDATE_CTR(bnad, mbox_intr_enabled); |
| 857 | } |
| 858 | |
| 859 | /* |
| 860 | * Called with bnad->bna_lock held b'cos of |
| 861 | * bnad->cfg_flags access. |
| 862 | */ |
Rasesh Mody | b7ee31c5 | 2010-10-05 15:46:05 +0000 | [diff] [blame] | 863 | static void |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 864 | bnad_disable_mbox_irq(struct bnad *bnad) |
| 865 | { |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 866 | set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags); |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 867 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 868 | BNAD_UPDATE_CTR(bnad, mbox_intr_disabled); |
| 869 | } |
| 870 | |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 871 | static void |
| 872 | bnad_set_netdev_perm_addr(struct bnad *bnad) |
| 873 | { |
| 874 | struct net_device *netdev = bnad->netdev; |
| 875 | |
| 876 | memcpy(netdev->perm_addr, &bnad->perm_addr, netdev->addr_len); |
| 877 | if (is_zero_ether_addr(netdev->dev_addr)) |
| 878 | memcpy(netdev->dev_addr, &bnad->perm_addr, netdev->addr_len); |
| 879 | } |
| 880 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 881 | /* Control Path Handlers */ |
| 882 | |
| 883 | /* Callbacks */ |
| 884 | void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 885 | bnad_cb_mbox_intr_enable(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 886 | { |
| 887 | bnad_enable_mbox_irq(bnad); |
| 888 | } |
| 889 | |
| 890 | void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 891 | bnad_cb_mbox_intr_disable(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 892 | { |
| 893 | bnad_disable_mbox_irq(bnad); |
| 894 | } |
| 895 | |
| 896 | void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 897 | bnad_cb_ioceth_ready(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 898 | { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 899 | bnad->bnad_completions.ioc_comp_status = BNA_CB_SUCCESS; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 900 | complete(&bnad->bnad_completions.ioc_comp); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 901 | } |
| 902 | |
| 903 | void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 904 | bnad_cb_ioceth_failed(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 905 | { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 906 | bnad->bnad_completions.ioc_comp_status = BNA_CB_FAIL; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 907 | complete(&bnad->bnad_completions.ioc_comp); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 908 | } |
| 909 | |
| 910 | void |
| 911 | bnad_cb_ioceth_disabled(struct bnad *bnad) |
| 912 | { |
| 913 | bnad->bnad_completions.ioc_comp_status = BNA_CB_SUCCESS; |
| 914 | complete(&bnad->bnad_completions.ioc_comp); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 915 | } |
| 916 | |
| 917 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 918 | bnad_cb_enet_disabled(void *arg) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 919 | { |
| 920 | struct bnad *bnad = (struct bnad *)arg; |
| 921 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 922 | netif_carrier_off(bnad->netdev); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 923 | complete(&bnad->bnad_completions.enet_comp); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 924 | } |
| 925 | |
| 926 | void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 927 | bnad_cb_ethport_link_status(struct bnad *bnad, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 928 | enum bna_link_status link_status) |
| 929 | { |
Rusty Russell | 3db1cd5 | 2011-12-19 13:56:45 +0000 | [diff] [blame] | 930 | bool link_up = false; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 931 | |
| 932 | link_up = (link_status == BNA_LINK_UP) || (link_status == BNA_CEE_UP); |
| 933 | |
| 934 | if (link_status == BNA_CEE_UP) { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 935 | if (!test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) |
| 936 | BNAD_UPDATE_CTR(bnad, cee_toggle); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 937 | set_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 938 | } else { |
| 939 | if (test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) |
| 940 | BNAD_UPDATE_CTR(bnad, cee_toggle); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 941 | clear_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 942 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 943 | |
| 944 | if (link_up) { |
| 945 | if (!netif_carrier_ok(bnad->netdev)) { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 946 | uint tx_id, tcb_id; |
| 947 | printk(KERN_WARNING "bna: %s link up\n", |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 948 | bnad->netdev->name); |
| 949 | netif_carrier_on(bnad->netdev); |
| 950 | BNAD_UPDATE_CTR(bnad, link_toggle); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 951 | for (tx_id = 0; tx_id < bnad->num_tx; tx_id++) { |
| 952 | for (tcb_id = 0; tcb_id < bnad->num_txq_per_tx; |
| 953 | tcb_id++) { |
| 954 | struct bna_tcb *tcb = |
| 955 | bnad->tx_info[tx_id].tcb[tcb_id]; |
| 956 | u32 txq_id; |
| 957 | if (!tcb) |
| 958 | continue; |
| 959 | |
| 960 | txq_id = tcb->id; |
| 961 | |
| 962 | if (test_bit(BNAD_TXQ_TX_STARTED, |
| 963 | &tcb->flags)) { |
| 964 | /* |
| 965 | * Force an immediate |
| 966 | * Transmit Schedule */ |
| 967 | printk(KERN_INFO "bna: %s %d " |
| 968 | "TXQ_STARTED\n", |
| 969 | bnad->netdev->name, |
| 970 | txq_id); |
| 971 | netif_wake_subqueue( |
| 972 | bnad->netdev, |
| 973 | txq_id); |
| 974 | BNAD_UPDATE_CTR(bnad, |
| 975 | netif_queue_wakeup); |
| 976 | } else { |
| 977 | netif_stop_subqueue( |
| 978 | bnad->netdev, |
| 979 | txq_id); |
| 980 | BNAD_UPDATE_CTR(bnad, |
| 981 | netif_queue_stop); |
| 982 | } |
| 983 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 984 | } |
| 985 | } |
| 986 | } else { |
| 987 | if (netif_carrier_ok(bnad->netdev)) { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 988 | printk(KERN_WARNING "bna: %s link down\n", |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 989 | bnad->netdev->name); |
| 990 | netif_carrier_off(bnad->netdev); |
| 991 | BNAD_UPDATE_CTR(bnad, link_toggle); |
| 992 | } |
| 993 | } |
| 994 | } |
| 995 | |
| 996 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 997 | bnad_cb_tx_disabled(void *arg, struct bna_tx *tx) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 998 | { |
| 999 | struct bnad *bnad = (struct bnad *)arg; |
| 1000 | |
| 1001 | complete(&bnad->bnad_completions.tx_comp); |
| 1002 | } |
| 1003 | |
| 1004 | static void |
| 1005 | bnad_cb_tcb_setup(struct bnad *bnad, struct bna_tcb *tcb) |
| 1006 | { |
| 1007 | struct bnad_tx_info *tx_info = |
| 1008 | (struct bnad_tx_info *)tcb->txq->tx->priv; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1009 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 1010 | tcb->priv = tcb; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1011 | tx_info->tcb[tcb->id] = tcb; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1012 | } |
| 1013 | |
| 1014 | static void |
| 1015 | bnad_cb_tcb_destroy(struct bnad *bnad, struct bna_tcb *tcb) |
| 1016 | { |
| 1017 | struct bnad_tx_info *tx_info = |
| 1018 | (struct bnad_tx_info *)tcb->txq->tx->priv; |
| 1019 | |
| 1020 | tx_info->tcb[tcb->id] = NULL; |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1021 | tcb->priv = NULL; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1022 | } |
| 1023 | |
| 1024 | static void |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1025 | bnad_cb_ccb_setup(struct bnad *bnad, struct bna_ccb *ccb) |
| 1026 | { |
| 1027 | struct bnad_rx_info *rx_info = |
| 1028 | (struct bnad_rx_info *)ccb->cq->rx->priv; |
| 1029 | |
| 1030 | rx_info->rx_ctrl[ccb->id].ccb = ccb; |
| 1031 | ccb->ctrl = &rx_info->rx_ctrl[ccb->id]; |
| 1032 | } |
| 1033 | |
| 1034 | static void |
| 1035 | bnad_cb_ccb_destroy(struct bnad *bnad, struct bna_ccb *ccb) |
| 1036 | { |
| 1037 | struct bnad_rx_info *rx_info = |
| 1038 | (struct bnad_rx_info *)ccb->cq->rx->priv; |
| 1039 | |
| 1040 | rx_info->rx_ctrl[ccb->id].ccb = NULL; |
| 1041 | } |
| 1042 | |
| 1043 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1044 | bnad_cb_tx_stall(struct bnad *bnad, struct bna_tx *tx) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1045 | { |
| 1046 | struct bnad_tx_info *tx_info = |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1047 | (struct bnad_tx_info *)tx->priv; |
| 1048 | struct bna_tcb *tcb; |
| 1049 | u32 txq_id; |
| 1050 | int i; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1051 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1052 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { |
| 1053 | tcb = tx_info->tcb[i]; |
| 1054 | if (!tcb) |
| 1055 | continue; |
| 1056 | txq_id = tcb->id; |
| 1057 | clear_bit(BNAD_TXQ_TX_STARTED, &tcb->flags); |
| 1058 | netif_stop_subqueue(bnad->netdev, txq_id); |
| 1059 | printk(KERN_INFO "bna: %s %d TXQ_STOPPED\n", |
| 1060 | bnad->netdev->name, txq_id); |
| 1061 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1062 | } |
| 1063 | |
| 1064 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1065 | bnad_cb_tx_resume(struct bnad *bnad, struct bna_tx *tx) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1066 | { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1067 | struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv; |
| 1068 | struct bna_tcb *tcb; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1069 | u32 txq_id; |
| 1070 | int i; |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1071 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1072 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { |
| 1073 | tcb = tx_info->tcb[i]; |
| 1074 | if (!tcb) |
| 1075 | continue; |
| 1076 | txq_id = tcb->id; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1077 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1078 | BUG_ON(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1079 | set_bit(BNAD_TXQ_TX_STARTED, &tcb->flags); |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1080 | BUG_ON(*(tcb->hw_consumer_index) != 0); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1081 | |
| 1082 | if (netif_carrier_ok(bnad->netdev)) { |
| 1083 | printk(KERN_INFO "bna: %s %d TXQ_STARTED\n", |
| 1084 | bnad->netdev->name, txq_id); |
| 1085 | netif_wake_subqueue(bnad->netdev, txq_id); |
| 1086 | BNAD_UPDATE_CTR(bnad, netif_queue_wakeup); |
| 1087 | } |
| 1088 | } |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1089 | |
| 1090 | /* |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1091 | * Workaround for first ioceth enable failure & we |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1092 | * get a 0 MAC address. We try to get the MAC address |
| 1093 | * again here. |
| 1094 | */ |
| 1095 | if (is_zero_ether_addr(&bnad->perm_addr.mac[0])) { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1096 | bna_enet_perm_mac_get(&bnad->bna.enet, &bnad->perm_addr); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1097 | bnad_set_netdev_perm_addr(bnad); |
| 1098 | } |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1099 | } |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1100 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1101 | /* |
| 1102 | * Free all TxQs buffers and then notify TX_E_CLEANUP_DONE to Tx fsm. |
| 1103 | */ |
| 1104 | static void |
| 1105 | bnad_tx_cleanup(struct delayed_work *work) |
| 1106 | { |
| 1107 | struct bnad_tx_info *tx_info = |
| 1108 | container_of(work, struct bnad_tx_info, tx_cleanup_work); |
| 1109 | struct bnad *bnad = NULL; |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1110 | struct bna_tcb *tcb; |
| 1111 | unsigned long flags; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 1112 | u32 i, pending = 0; |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1113 | |
| 1114 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { |
| 1115 | tcb = tx_info->tcb[i]; |
| 1116 | if (!tcb) |
| 1117 | continue; |
| 1118 | |
| 1119 | bnad = tcb->bnad; |
| 1120 | |
| 1121 | if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) { |
| 1122 | pending++; |
| 1123 | continue; |
| 1124 | } |
| 1125 | |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 1126 | bnad_txq_cleanup(bnad, tcb); |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1127 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1128 | smp_mb__before_clear_bit(); |
| 1129 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); |
| 1130 | } |
| 1131 | |
| 1132 | if (pending) { |
| 1133 | queue_delayed_work(bnad->work_q, &tx_info->tx_cleanup_work, |
| 1134 | msecs_to_jiffies(1)); |
| 1135 | return; |
| 1136 | } |
| 1137 | |
| 1138 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1139 | bna_tx_cleanup_complete(tx_info->tx); |
| 1140 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1141 | } |
| 1142 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1143 | static void |
| 1144 | bnad_cb_tx_cleanup(struct bnad *bnad, struct bna_tx *tx) |
| 1145 | { |
| 1146 | struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv; |
| 1147 | struct bna_tcb *tcb; |
| 1148 | int i; |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1149 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1150 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { |
| 1151 | tcb = tx_info->tcb[i]; |
| 1152 | if (!tcb) |
| 1153 | continue; |
| 1154 | } |
| 1155 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1156 | queue_delayed_work(bnad->work_q, &tx_info->tx_cleanup_work, 0); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1157 | } |
| 1158 | |
| 1159 | static void |
Rasesh Mody | 5bcf6ac | 2011-09-27 10:39:10 +0000 | [diff] [blame] | 1160 | bnad_cb_rx_stall(struct bnad *bnad, struct bna_rx *rx) |
| 1161 | { |
| 1162 | struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv; |
| 1163 | struct bna_ccb *ccb; |
| 1164 | struct bnad_rx_ctrl *rx_ctrl; |
| 1165 | int i; |
| 1166 | |
| 1167 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { |
| 1168 | rx_ctrl = &rx_info->rx_ctrl[i]; |
| 1169 | ccb = rx_ctrl->ccb; |
| 1170 | if (!ccb) |
| 1171 | continue; |
| 1172 | |
| 1173 | clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[0]->flags); |
| 1174 | |
| 1175 | if (ccb->rcb[1]) |
| 1176 | clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[1]->flags); |
| 1177 | } |
| 1178 | } |
| 1179 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1180 | /* |
| 1181 | * Free all RxQs buffers and then notify RX_E_CLEANUP_DONE to Rx fsm. |
| 1182 | */ |
| 1183 | static void |
| 1184 | bnad_rx_cleanup(void *work) |
| 1185 | { |
| 1186 | struct bnad_rx_info *rx_info = |
| 1187 | container_of(work, struct bnad_rx_info, rx_cleanup_work); |
| 1188 | struct bnad_rx_ctrl *rx_ctrl; |
| 1189 | struct bnad *bnad = NULL; |
| 1190 | unsigned long flags; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 1191 | u32 i; |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1192 | |
| 1193 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { |
| 1194 | rx_ctrl = &rx_info->rx_ctrl[i]; |
| 1195 | |
| 1196 | if (!rx_ctrl->ccb) |
| 1197 | continue; |
| 1198 | |
| 1199 | bnad = rx_ctrl->ccb->bnad; |
| 1200 | |
| 1201 | /* |
| 1202 | * Wait till the poll handler has exited |
| 1203 | * and nothing can be scheduled anymore |
| 1204 | */ |
| 1205 | napi_disable(&rx_ctrl->napi); |
| 1206 | |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 1207 | bnad_cq_cleanup(bnad, rx_ctrl->ccb); |
| 1208 | bnad_rxq_cleanup(bnad, rx_ctrl->ccb->rcb[0]); |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1209 | if (rx_ctrl->ccb->rcb[1]) |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 1210 | bnad_rxq_cleanup(bnad, rx_ctrl->ccb->rcb[1]); |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1211 | } |
| 1212 | |
| 1213 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1214 | bna_rx_cleanup_complete(rx_info->rx); |
| 1215 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1216 | } |
| 1217 | |
Rasesh Mody | 5bcf6ac | 2011-09-27 10:39:10 +0000 | [diff] [blame] | 1218 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1219 | bnad_cb_rx_cleanup(struct bnad *bnad, struct bna_rx *rx) |
| 1220 | { |
| 1221 | struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv; |
| 1222 | struct bna_ccb *ccb; |
| 1223 | struct bnad_rx_ctrl *rx_ctrl; |
| 1224 | int i; |
| 1225 | |
Rasesh Mody | 772b523 | 2011-08-30 15:27:37 +0000 | [diff] [blame] | 1226 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1227 | rx_ctrl = &rx_info->rx_ctrl[i]; |
| 1228 | ccb = rx_ctrl->ccb; |
| 1229 | if (!ccb) |
| 1230 | continue; |
| 1231 | |
| 1232 | clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags); |
| 1233 | |
| 1234 | if (ccb->rcb[1]) |
| 1235 | clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[1]->flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1236 | } |
| 1237 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1238 | queue_work(bnad->work_q, &rx_info->rx_cleanup_work); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1239 | } |
| 1240 | |
| 1241 | static void |
| 1242 | bnad_cb_rx_post(struct bnad *bnad, struct bna_rx *rx) |
| 1243 | { |
| 1244 | struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv; |
| 1245 | struct bna_ccb *ccb; |
| 1246 | struct bna_rcb *rcb; |
| 1247 | struct bnad_rx_ctrl *rx_ctrl; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 1248 | int i, j; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1249 | |
Rasesh Mody | 772b523 | 2011-08-30 15:27:37 +0000 | [diff] [blame] | 1250 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1251 | rx_ctrl = &rx_info->rx_ctrl[i]; |
| 1252 | ccb = rx_ctrl->ccb; |
| 1253 | if (!ccb) |
| 1254 | continue; |
| 1255 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1256 | napi_enable(&rx_ctrl->napi); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1257 | |
| 1258 | for (j = 0; j < BNAD_MAX_RXQ_PER_RXP; j++) { |
| 1259 | rcb = ccb->rcb[j]; |
| 1260 | if (!rcb) |
| 1261 | continue; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1262 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 1263 | bnad_rxq_alloc_init(bnad, rcb); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1264 | set_bit(BNAD_RXQ_STARTED, &rcb->flags); |
Rasesh Mody | 5bcf6ac | 2011-09-27 10:39:10 +0000 | [diff] [blame] | 1265 | set_bit(BNAD_RXQ_POST_OK, &rcb->flags); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 1266 | bnad_rxq_post(bnad, rcb); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1267 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1268 | } |
| 1269 | } |
| 1270 | |
| 1271 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1272 | bnad_cb_rx_disabled(void *arg, struct bna_rx *rx) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1273 | { |
| 1274 | struct bnad *bnad = (struct bnad *)arg; |
| 1275 | |
| 1276 | complete(&bnad->bnad_completions.rx_comp); |
| 1277 | } |
| 1278 | |
| 1279 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1280 | bnad_cb_rx_mcast_add(struct bnad *bnad, struct bna_rx *rx) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1281 | { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1282 | bnad->bnad_completions.mcast_comp_status = BNA_CB_SUCCESS; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1283 | complete(&bnad->bnad_completions.mcast_comp); |
| 1284 | } |
| 1285 | |
| 1286 | void |
| 1287 | bnad_cb_stats_get(struct bnad *bnad, enum bna_cb_status status, |
| 1288 | struct bna_stats *stats) |
| 1289 | { |
| 1290 | if (status == BNA_CB_SUCCESS) |
| 1291 | BNAD_UPDATE_CTR(bnad, hw_stats_updates); |
| 1292 | |
| 1293 | if (!netif_running(bnad->netdev) || |
| 1294 | !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) |
| 1295 | return; |
| 1296 | |
| 1297 | mod_timer(&bnad->stats_timer, |
| 1298 | jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ)); |
| 1299 | } |
| 1300 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1301 | static void |
| 1302 | bnad_cb_enet_mtu_set(struct bnad *bnad) |
| 1303 | { |
| 1304 | bnad->bnad_completions.mtu_comp_status = BNA_CB_SUCCESS; |
| 1305 | complete(&bnad->bnad_completions.mtu_comp); |
| 1306 | } |
| 1307 | |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 1308 | void |
| 1309 | bnad_cb_completion(void *arg, enum bfa_status status) |
| 1310 | { |
| 1311 | struct bnad_iocmd_comp *iocmd_comp = |
| 1312 | (struct bnad_iocmd_comp *)arg; |
| 1313 | |
| 1314 | iocmd_comp->comp_status = (u32) status; |
| 1315 | complete(&iocmd_comp->comp); |
| 1316 | } |
| 1317 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1318 | /* Resource allocation, free functions */ |
| 1319 | |
| 1320 | static void |
| 1321 | bnad_mem_free(struct bnad *bnad, |
| 1322 | struct bna_mem_info *mem_info) |
| 1323 | { |
| 1324 | int i; |
| 1325 | dma_addr_t dma_pa; |
| 1326 | |
| 1327 | if (mem_info->mdl == NULL) |
| 1328 | return; |
| 1329 | |
| 1330 | for (i = 0; i < mem_info->num; i++) { |
| 1331 | if (mem_info->mdl[i].kva != NULL) { |
| 1332 | if (mem_info->mem_type == BNA_MEM_T_DMA) { |
| 1333 | BNA_GET_DMA_ADDR(&(mem_info->mdl[i].dma), |
| 1334 | dma_pa); |
Ivan Vecera | 5ea7431 | 2011-02-02 04:37:02 +0000 | [diff] [blame] | 1335 | dma_free_coherent(&bnad->pcidev->dev, |
| 1336 | mem_info->mdl[i].len, |
| 1337 | mem_info->mdl[i].kva, dma_pa); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1338 | } else |
| 1339 | kfree(mem_info->mdl[i].kva); |
| 1340 | } |
| 1341 | } |
| 1342 | kfree(mem_info->mdl); |
| 1343 | mem_info->mdl = NULL; |
| 1344 | } |
| 1345 | |
| 1346 | static int |
| 1347 | bnad_mem_alloc(struct bnad *bnad, |
| 1348 | struct bna_mem_info *mem_info) |
| 1349 | { |
| 1350 | int i; |
| 1351 | dma_addr_t dma_pa; |
| 1352 | |
| 1353 | if ((mem_info->num == 0) || (mem_info->len == 0)) { |
| 1354 | mem_info->mdl = NULL; |
| 1355 | return 0; |
| 1356 | } |
| 1357 | |
| 1358 | mem_info->mdl = kcalloc(mem_info->num, sizeof(struct bna_mem_descr), |
| 1359 | GFP_KERNEL); |
| 1360 | if (mem_info->mdl == NULL) |
| 1361 | return -ENOMEM; |
| 1362 | |
| 1363 | if (mem_info->mem_type == BNA_MEM_T_DMA) { |
| 1364 | for (i = 0; i < mem_info->num; i++) { |
| 1365 | mem_info->mdl[i].len = mem_info->len; |
| 1366 | mem_info->mdl[i].kva = |
Ivan Vecera | 5ea7431 | 2011-02-02 04:37:02 +0000 | [diff] [blame] | 1367 | dma_alloc_coherent(&bnad->pcidev->dev, |
Joe Perches | 1f9061d2 | 2013-03-15 07:23:58 +0000 | [diff] [blame] | 1368 | mem_info->len, &dma_pa, |
| 1369 | GFP_KERNEL); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1370 | if (mem_info->mdl[i].kva == NULL) |
| 1371 | goto err_return; |
| 1372 | |
| 1373 | BNA_SET_DMA_ADDR(dma_pa, |
| 1374 | &(mem_info->mdl[i].dma)); |
| 1375 | } |
| 1376 | } else { |
| 1377 | for (i = 0; i < mem_info->num; i++) { |
| 1378 | mem_info->mdl[i].len = mem_info->len; |
| 1379 | mem_info->mdl[i].kva = kzalloc(mem_info->len, |
| 1380 | GFP_KERNEL); |
| 1381 | if (mem_info->mdl[i].kva == NULL) |
| 1382 | goto err_return; |
| 1383 | } |
| 1384 | } |
| 1385 | |
| 1386 | return 0; |
| 1387 | |
| 1388 | err_return: |
| 1389 | bnad_mem_free(bnad, mem_info); |
| 1390 | return -ENOMEM; |
| 1391 | } |
| 1392 | |
| 1393 | /* Free IRQ for Mailbox */ |
| 1394 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1395 | bnad_mbox_irq_free(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1396 | { |
| 1397 | int irq; |
| 1398 | unsigned long flags; |
| 1399 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1400 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1401 | bnad_disable_mbox_irq(bnad); |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 1402 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1403 | |
| 1404 | irq = BNAD_GET_MBOX_IRQ(bnad); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1405 | free_irq(irq, bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1406 | } |
| 1407 | |
| 1408 | /* |
| 1409 | * Allocates IRQ for Mailbox, but keep it disabled |
| 1410 | * This will be enabled once we get the mbox enable callback |
| 1411 | * from bna |
| 1412 | */ |
| 1413 | static int |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1414 | bnad_mbox_irq_alloc(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1415 | { |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 1416 | int err = 0; |
| 1417 | unsigned long irq_flags, flags; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1418 | u32 irq; |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 1419 | irq_handler_t irq_handler; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1420 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1421 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1422 | if (bnad->cfg_flags & BNAD_CF_MSIX) { |
| 1423 | irq_handler = (irq_handler_t)bnad_msix_mbox_handler; |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 1424 | irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector; |
Shyam Iyer | 8279171 | 2011-07-14 15:00:32 +0000 | [diff] [blame] | 1425 | irq_flags = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1426 | } else { |
| 1427 | irq_handler = (irq_handler_t)bnad_isr; |
| 1428 | irq = bnad->pcidev->irq; |
Shyam Iyer | 5f77898 | 2011-06-28 08:58:05 +0000 | [diff] [blame] | 1429 | irq_flags = IRQF_SHARED; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1430 | } |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 1431 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1432 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1433 | sprintf(bnad->mbox_irq_name, "%s", BNAD_NAME); |
| 1434 | |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 1435 | /* |
| 1436 | * Set the Mbox IRQ disable flag, so that the IRQ handler |
| 1437 | * called from request_irq() for SHARED IRQs do not execute |
| 1438 | */ |
| 1439 | set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags); |
| 1440 | |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1441 | BNAD_UPDATE_CTR(bnad, mbox_intr_disabled); |
| 1442 | |
Shyam Iyer | 8279171 | 2011-07-14 15:00:32 +0000 | [diff] [blame] | 1443 | err = request_irq(irq, irq_handler, irq_flags, |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1444 | bnad->mbox_irq_name, bnad); |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 1445 | |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1446 | return err; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1447 | } |
| 1448 | |
| 1449 | static void |
| 1450 | bnad_txrx_irq_free(struct bnad *bnad, struct bna_intr_info *intr_info) |
| 1451 | { |
| 1452 | kfree(intr_info->idl); |
| 1453 | intr_info->idl = NULL; |
| 1454 | } |
| 1455 | |
| 1456 | /* Allocates Interrupt Descriptor List for MSIX/INT-X vectors */ |
| 1457 | static int |
| 1458 | bnad_txrx_irq_alloc(struct bnad *bnad, enum bnad_intr_source src, |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1459 | u32 txrx_id, struct bna_intr_info *intr_info) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1460 | { |
| 1461 | int i, vector_start = 0; |
| 1462 | u32 cfg_flags; |
| 1463 | unsigned long flags; |
| 1464 | |
| 1465 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1466 | cfg_flags = bnad->cfg_flags; |
| 1467 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1468 | |
| 1469 | if (cfg_flags & BNAD_CF_MSIX) { |
| 1470 | intr_info->intr_type = BNA_INTR_T_MSIX; |
| 1471 | intr_info->idl = kcalloc(intr_info->num, |
| 1472 | sizeof(struct bna_intr_descr), |
| 1473 | GFP_KERNEL); |
| 1474 | if (!intr_info->idl) |
| 1475 | return -ENOMEM; |
| 1476 | |
| 1477 | switch (src) { |
| 1478 | case BNAD_INTR_TX: |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 1479 | vector_start = BNAD_MAILBOX_MSIX_VECTORS + txrx_id; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1480 | break; |
| 1481 | |
| 1482 | case BNAD_INTR_RX: |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 1483 | vector_start = BNAD_MAILBOX_MSIX_VECTORS + |
| 1484 | (bnad->num_tx * bnad->num_txq_per_tx) + |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1485 | txrx_id; |
| 1486 | break; |
| 1487 | |
| 1488 | default: |
| 1489 | BUG(); |
| 1490 | } |
| 1491 | |
| 1492 | for (i = 0; i < intr_info->num; i++) |
| 1493 | intr_info->idl[i].vector = vector_start + i; |
| 1494 | } else { |
| 1495 | intr_info->intr_type = BNA_INTR_T_INTX; |
| 1496 | intr_info->num = 1; |
| 1497 | intr_info->idl = kcalloc(intr_info->num, |
| 1498 | sizeof(struct bna_intr_descr), |
| 1499 | GFP_KERNEL); |
| 1500 | if (!intr_info->idl) |
| 1501 | return -ENOMEM; |
| 1502 | |
| 1503 | switch (src) { |
| 1504 | case BNAD_INTR_TX: |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 1505 | intr_info->idl[0].vector = BNAD_INTX_TX_IB_BITMASK; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1506 | break; |
| 1507 | |
| 1508 | case BNAD_INTR_RX: |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 1509 | intr_info->idl[0].vector = BNAD_INTX_RX_IB_BITMASK; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1510 | break; |
| 1511 | } |
| 1512 | } |
| 1513 | return 0; |
| 1514 | } |
| 1515 | |
Ben Hutchings | 1aa8b47 | 2012-07-10 10:56:59 +0000 | [diff] [blame] | 1516 | /* NOTE: Should be called for MSIX only |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1517 | * Unregisters Tx MSIX vector(s) from the kernel |
| 1518 | */ |
| 1519 | static void |
| 1520 | bnad_tx_msix_unregister(struct bnad *bnad, struct bnad_tx_info *tx_info, |
| 1521 | int num_txqs) |
| 1522 | { |
| 1523 | int i; |
| 1524 | int vector_num; |
| 1525 | |
| 1526 | for (i = 0; i < num_txqs; i++) { |
| 1527 | if (tx_info->tcb[i] == NULL) |
| 1528 | continue; |
| 1529 | |
| 1530 | vector_num = tx_info->tcb[i]->intr_vector; |
| 1531 | free_irq(bnad->msix_table[vector_num].vector, tx_info->tcb[i]); |
| 1532 | } |
| 1533 | } |
| 1534 | |
Ben Hutchings | 1aa8b47 | 2012-07-10 10:56:59 +0000 | [diff] [blame] | 1535 | /* NOTE: Should be called for MSIX only |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1536 | * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel |
| 1537 | */ |
| 1538 | static int |
| 1539 | bnad_tx_msix_register(struct bnad *bnad, struct bnad_tx_info *tx_info, |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1540 | u32 tx_id, int num_txqs) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1541 | { |
| 1542 | int i; |
| 1543 | int err; |
| 1544 | int vector_num; |
| 1545 | |
| 1546 | for (i = 0; i < num_txqs; i++) { |
| 1547 | vector_num = tx_info->tcb[i]->intr_vector; |
| 1548 | sprintf(tx_info->tcb[i]->name, "%s TXQ %d", bnad->netdev->name, |
| 1549 | tx_id + tx_info->tcb[i]->id); |
| 1550 | err = request_irq(bnad->msix_table[vector_num].vector, |
| 1551 | (irq_handler_t)bnad_msix_tx, 0, |
| 1552 | tx_info->tcb[i]->name, |
| 1553 | tx_info->tcb[i]); |
| 1554 | if (err) |
| 1555 | goto err_return; |
| 1556 | } |
| 1557 | |
| 1558 | return 0; |
| 1559 | |
| 1560 | err_return: |
| 1561 | if (i > 0) |
| 1562 | bnad_tx_msix_unregister(bnad, tx_info, (i - 1)); |
| 1563 | return -1; |
| 1564 | } |
| 1565 | |
Ben Hutchings | 1aa8b47 | 2012-07-10 10:56:59 +0000 | [diff] [blame] | 1566 | /* NOTE: Should be called for MSIX only |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1567 | * Unregisters Rx MSIX vector(s) from the kernel |
| 1568 | */ |
| 1569 | static void |
| 1570 | bnad_rx_msix_unregister(struct bnad *bnad, struct bnad_rx_info *rx_info, |
| 1571 | int num_rxps) |
| 1572 | { |
| 1573 | int i; |
| 1574 | int vector_num; |
| 1575 | |
| 1576 | for (i = 0; i < num_rxps; i++) { |
| 1577 | if (rx_info->rx_ctrl[i].ccb == NULL) |
| 1578 | continue; |
| 1579 | |
| 1580 | vector_num = rx_info->rx_ctrl[i].ccb->intr_vector; |
| 1581 | free_irq(bnad->msix_table[vector_num].vector, |
| 1582 | rx_info->rx_ctrl[i].ccb); |
| 1583 | } |
| 1584 | } |
| 1585 | |
Ben Hutchings | 1aa8b47 | 2012-07-10 10:56:59 +0000 | [diff] [blame] | 1586 | /* NOTE: Should be called for MSIX only |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1587 | * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel |
| 1588 | */ |
| 1589 | static int |
| 1590 | bnad_rx_msix_register(struct bnad *bnad, struct bnad_rx_info *rx_info, |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1591 | u32 rx_id, int num_rxps) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1592 | { |
| 1593 | int i; |
| 1594 | int err; |
| 1595 | int vector_num; |
| 1596 | |
| 1597 | for (i = 0; i < num_rxps; i++) { |
| 1598 | vector_num = rx_info->rx_ctrl[i].ccb->intr_vector; |
| 1599 | sprintf(rx_info->rx_ctrl[i].ccb->name, "%s CQ %d", |
| 1600 | bnad->netdev->name, |
| 1601 | rx_id + rx_info->rx_ctrl[i].ccb->id); |
| 1602 | err = request_irq(bnad->msix_table[vector_num].vector, |
| 1603 | (irq_handler_t)bnad_msix_rx, 0, |
| 1604 | rx_info->rx_ctrl[i].ccb->name, |
| 1605 | rx_info->rx_ctrl[i].ccb); |
| 1606 | if (err) |
| 1607 | goto err_return; |
| 1608 | } |
| 1609 | |
| 1610 | return 0; |
| 1611 | |
| 1612 | err_return: |
| 1613 | if (i > 0) |
| 1614 | bnad_rx_msix_unregister(bnad, rx_info, (i - 1)); |
| 1615 | return -1; |
| 1616 | } |
| 1617 | |
| 1618 | /* Free Tx object Resources */ |
| 1619 | static void |
| 1620 | bnad_tx_res_free(struct bnad *bnad, struct bna_res_info *res_info) |
| 1621 | { |
| 1622 | int i; |
| 1623 | |
| 1624 | for (i = 0; i < BNA_TX_RES_T_MAX; i++) { |
| 1625 | if (res_info[i].res_type == BNA_RES_T_MEM) |
| 1626 | bnad_mem_free(bnad, &res_info[i].res_u.mem_info); |
| 1627 | else if (res_info[i].res_type == BNA_RES_T_INTR) |
| 1628 | bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info); |
| 1629 | } |
| 1630 | } |
| 1631 | |
| 1632 | /* Allocates memory and interrupt resources for Tx object */ |
| 1633 | static int |
| 1634 | bnad_tx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info, |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1635 | u32 tx_id) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1636 | { |
| 1637 | int i, err = 0; |
| 1638 | |
| 1639 | for (i = 0; i < BNA_TX_RES_T_MAX; i++) { |
| 1640 | if (res_info[i].res_type == BNA_RES_T_MEM) |
| 1641 | err = bnad_mem_alloc(bnad, |
| 1642 | &res_info[i].res_u.mem_info); |
| 1643 | else if (res_info[i].res_type == BNA_RES_T_INTR) |
| 1644 | err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_TX, tx_id, |
| 1645 | &res_info[i].res_u.intr_info); |
| 1646 | if (err) |
| 1647 | goto err_return; |
| 1648 | } |
| 1649 | return 0; |
| 1650 | |
| 1651 | err_return: |
| 1652 | bnad_tx_res_free(bnad, res_info); |
| 1653 | return err; |
| 1654 | } |
| 1655 | |
| 1656 | /* Free Rx object Resources */ |
| 1657 | static void |
| 1658 | bnad_rx_res_free(struct bnad *bnad, struct bna_res_info *res_info) |
| 1659 | { |
| 1660 | int i; |
| 1661 | |
| 1662 | for (i = 0; i < BNA_RX_RES_T_MAX; i++) { |
| 1663 | if (res_info[i].res_type == BNA_RES_T_MEM) |
| 1664 | bnad_mem_free(bnad, &res_info[i].res_u.mem_info); |
| 1665 | else if (res_info[i].res_type == BNA_RES_T_INTR) |
| 1666 | bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info); |
| 1667 | } |
| 1668 | } |
| 1669 | |
| 1670 | /* Allocates memory and interrupt resources for Rx object */ |
| 1671 | static int |
| 1672 | bnad_rx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info, |
| 1673 | uint rx_id) |
| 1674 | { |
| 1675 | int i, err = 0; |
| 1676 | |
| 1677 | /* All memory needs to be allocated before setup_ccbs */ |
| 1678 | for (i = 0; i < BNA_RX_RES_T_MAX; i++) { |
| 1679 | if (res_info[i].res_type == BNA_RES_T_MEM) |
| 1680 | err = bnad_mem_alloc(bnad, |
| 1681 | &res_info[i].res_u.mem_info); |
| 1682 | else if (res_info[i].res_type == BNA_RES_T_INTR) |
| 1683 | err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_RX, rx_id, |
| 1684 | &res_info[i].res_u.intr_info); |
| 1685 | if (err) |
| 1686 | goto err_return; |
| 1687 | } |
| 1688 | return 0; |
| 1689 | |
| 1690 | err_return: |
| 1691 | bnad_rx_res_free(bnad, res_info); |
| 1692 | return err; |
| 1693 | } |
| 1694 | |
| 1695 | /* Timer callbacks */ |
| 1696 | /* a) IOC timer */ |
| 1697 | static void |
| 1698 | bnad_ioc_timeout(unsigned long data) |
| 1699 | { |
| 1700 | struct bnad *bnad = (struct bnad *)data; |
| 1701 | unsigned long flags; |
| 1702 | |
| 1703 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1704 | bfa_nw_ioc_timeout((void *) &bnad->bna.ioceth.ioc); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1705 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1706 | } |
| 1707 | |
| 1708 | static void |
| 1709 | bnad_ioc_hb_check(unsigned long data) |
| 1710 | { |
| 1711 | struct bnad *bnad = (struct bnad *)data; |
| 1712 | unsigned long flags; |
| 1713 | |
| 1714 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1715 | bfa_nw_ioc_hb_check((void *) &bnad->bna.ioceth.ioc); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1716 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1717 | } |
| 1718 | |
| 1719 | static void |
Rasesh Mody | 1d32f76 | 2010-12-23 21:45:09 +0000 | [diff] [blame] | 1720 | bnad_iocpf_timeout(unsigned long data) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1721 | { |
| 1722 | struct bnad *bnad = (struct bnad *)data; |
| 1723 | unsigned long flags; |
| 1724 | |
| 1725 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1726 | bfa_nw_iocpf_timeout((void *) &bnad->bna.ioceth.ioc); |
Rasesh Mody | 1d32f76 | 2010-12-23 21:45:09 +0000 | [diff] [blame] | 1727 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1728 | } |
| 1729 | |
| 1730 | static void |
| 1731 | bnad_iocpf_sem_timeout(unsigned long data) |
| 1732 | { |
| 1733 | struct bnad *bnad = (struct bnad *)data; |
| 1734 | unsigned long flags; |
| 1735 | |
| 1736 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1737 | bfa_nw_iocpf_sem_timeout((void *) &bnad->bna.ioceth.ioc); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1738 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1739 | } |
| 1740 | |
| 1741 | /* |
| 1742 | * All timer routines use bnad->bna_lock to protect against |
| 1743 | * the following race, which may occur in case of no locking: |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 1744 | * Time CPU m CPU n |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1745 | * 0 1 = test_bit |
| 1746 | * 1 clear_bit |
| 1747 | * 2 del_timer_sync |
| 1748 | * 3 mod_timer |
| 1749 | */ |
| 1750 | |
| 1751 | /* b) Dynamic Interrupt Moderation Timer */ |
| 1752 | static void |
| 1753 | bnad_dim_timeout(unsigned long data) |
| 1754 | { |
| 1755 | struct bnad *bnad = (struct bnad *)data; |
| 1756 | struct bnad_rx_info *rx_info; |
| 1757 | struct bnad_rx_ctrl *rx_ctrl; |
| 1758 | int i, j; |
| 1759 | unsigned long flags; |
| 1760 | |
| 1761 | if (!netif_carrier_ok(bnad->netdev)) |
| 1762 | return; |
| 1763 | |
| 1764 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1765 | for (i = 0; i < bnad->num_rx; i++) { |
| 1766 | rx_info = &bnad->rx_info[i]; |
| 1767 | if (!rx_info->rx) |
| 1768 | continue; |
| 1769 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { |
| 1770 | rx_ctrl = &rx_info->rx_ctrl[j]; |
| 1771 | if (!rx_ctrl->ccb) |
| 1772 | continue; |
| 1773 | bna_rx_dim_update(rx_ctrl->ccb); |
| 1774 | } |
| 1775 | } |
| 1776 | |
| 1777 | /* Check for BNAD_CF_DIM_ENABLED, does not eleminate a race */ |
| 1778 | if (test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) |
| 1779 | mod_timer(&bnad->dim_timer, |
| 1780 | jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ)); |
| 1781 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1782 | } |
| 1783 | |
| 1784 | /* c) Statistics Timer */ |
| 1785 | static void |
| 1786 | bnad_stats_timeout(unsigned long data) |
| 1787 | { |
| 1788 | struct bnad *bnad = (struct bnad *)data; |
| 1789 | unsigned long flags; |
| 1790 | |
| 1791 | if (!netif_running(bnad->netdev) || |
| 1792 | !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) |
| 1793 | return; |
| 1794 | |
| 1795 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1796 | bna_hw_stats_get(&bnad->bna); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1797 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1798 | } |
| 1799 | |
| 1800 | /* |
| 1801 | * Set up timer for DIM |
| 1802 | * Called with bnad->bna_lock held |
| 1803 | */ |
| 1804 | void |
| 1805 | bnad_dim_timer_start(struct bnad *bnad) |
| 1806 | { |
| 1807 | if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED && |
| 1808 | !test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) { |
| 1809 | setup_timer(&bnad->dim_timer, bnad_dim_timeout, |
| 1810 | (unsigned long)bnad); |
| 1811 | set_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags); |
| 1812 | mod_timer(&bnad->dim_timer, |
| 1813 | jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ)); |
| 1814 | } |
| 1815 | } |
| 1816 | |
| 1817 | /* |
| 1818 | * Set up timer for statistics |
| 1819 | * Called with mutex_lock(&bnad->conf_mutex) held |
| 1820 | */ |
| 1821 | static void |
| 1822 | bnad_stats_timer_start(struct bnad *bnad) |
| 1823 | { |
| 1824 | unsigned long flags; |
| 1825 | |
| 1826 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1827 | if (!test_and_set_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) { |
| 1828 | setup_timer(&bnad->stats_timer, bnad_stats_timeout, |
| 1829 | (unsigned long)bnad); |
| 1830 | mod_timer(&bnad->stats_timer, |
| 1831 | jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ)); |
| 1832 | } |
| 1833 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1834 | } |
| 1835 | |
| 1836 | /* |
| 1837 | * Stops the stats timer |
| 1838 | * Called with mutex_lock(&bnad->conf_mutex) held |
| 1839 | */ |
| 1840 | static void |
| 1841 | bnad_stats_timer_stop(struct bnad *bnad) |
| 1842 | { |
| 1843 | int to_del = 0; |
| 1844 | unsigned long flags; |
| 1845 | |
| 1846 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1847 | if (test_and_clear_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) |
| 1848 | to_del = 1; |
| 1849 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1850 | if (to_del) |
| 1851 | del_timer_sync(&bnad->stats_timer); |
| 1852 | } |
| 1853 | |
| 1854 | /* Utilities */ |
| 1855 | |
| 1856 | static void |
| 1857 | bnad_netdev_mc_list_get(struct net_device *netdev, u8 *mc_list) |
| 1858 | { |
| 1859 | int i = 1; /* Index 0 has broadcast address */ |
| 1860 | struct netdev_hw_addr *mc_addr; |
| 1861 | |
| 1862 | netdev_for_each_mc_addr(mc_addr, netdev) { |
| 1863 | memcpy(&mc_list[i * ETH_ALEN], &mc_addr->addr[0], |
| 1864 | ETH_ALEN); |
| 1865 | i++; |
| 1866 | } |
| 1867 | } |
| 1868 | |
| 1869 | static int |
| 1870 | bnad_napi_poll_rx(struct napi_struct *napi, int budget) |
| 1871 | { |
| 1872 | struct bnad_rx_ctrl *rx_ctrl = |
| 1873 | container_of(napi, struct bnad_rx_ctrl, napi); |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 1874 | struct bnad *bnad = rx_ctrl->bnad; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1875 | int rcvd = 0; |
| 1876 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 1877 | rx_ctrl->rx_poll_ctr++; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1878 | |
| 1879 | if (!netif_carrier_ok(bnad->netdev)) |
| 1880 | goto poll_exit; |
| 1881 | |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 1882 | rcvd = bnad_cq_process(bnad, rx_ctrl->ccb, budget); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 1883 | if (rcvd >= budget) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1884 | return rcvd; |
| 1885 | |
| 1886 | poll_exit: |
Rasesh Mody | 19dbff9 | 2011-08-30 15:27:41 +0000 | [diff] [blame] | 1887 | napi_complete(napi); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1888 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 1889 | rx_ctrl->rx_complete++; |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 1890 | |
| 1891 | if (rx_ctrl->ccb) |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 1892 | bnad_enable_rx_irq_unsafe(rx_ctrl->ccb); |
| 1893 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1894 | return rcvd; |
| 1895 | } |
| 1896 | |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 1897 | #define BNAD_NAPI_POLL_QUOTA 64 |
| 1898 | static void |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1899 | bnad_napi_add(struct bnad *bnad, u32 rx_id) |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 1900 | { |
| 1901 | struct bnad_rx_ctrl *rx_ctrl; |
| 1902 | int i; |
| 1903 | |
| 1904 | /* Initialize & enable NAPI */ |
| 1905 | for (i = 0; i < bnad->num_rxp_per_rx; i++) { |
| 1906 | rx_ctrl = &bnad->rx_info[rx_id].rx_ctrl[i]; |
| 1907 | netif_napi_add(bnad->netdev, &rx_ctrl->napi, |
| 1908 | bnad_napi_poll_rx, BNAD_NAPI_POLL_QUOTA); |
| 1909 | } |
| 1910 | } |
| 1911 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1912 | static void |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1913 | bnad_napi_delete(struct bnad *bnad, u32 rx_id) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1914 | { |
| 1915 | int i; |
| 1916 | |
| 1917 | /* First disable and then clean up */ |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1918 | for (i = 0; i < bnad->num_rxp_per_rx; i++) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1919 | netif_napi_del(&bnad->rx_info[rx_id].rx_ctrl[i].napi); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1920 | } |
| 1921 | |
| 1922 | /* Should be held with conf_lock held */ |
| 1923 | void |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 1924 | bnad_destroy_tx(struct bnad *bnad, u32 tx_id) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1925 | { |
| 1926 | struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id]; |
| 1927 | struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0]; |
| 1928 | unsigned long flags; |
| 1929 | |
| 1930 | if (!tx_info->tx) |
| 1931 | return; |
| 1932 | |
| 1933 | init_completion(&bnad->bnad_completions.tx_comp); |
| 1934 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1935 | bna_tx_disable(tx_info->tx, BNA_HARD_CLEANUP, bnad_cb_tx_disabled); |
| 1936 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1937 | wait_for_completion(&bnad->bnad_completions.tx_comp); |
| 1938 | |
| 1939 | if (tx_info->tcb[0]->intr_type == BNA_INTR_T_MSIX) |
| 1940 | bnad_tx_msix_unregister(bnad, tx_info, |
| 1941 | bnad->num_txq_per_tx); |
| 1942 | |
| 1943 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1944 | bna_tx_destroy(tx_info->tx); |
| 1945 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1946 | |
| 1947 | tx_info->tx = NULL; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1948 | tx_info->tx_id = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1949 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1950 | bnad_tx_res_free(bnad, res_info); |
| 1951 | } |
| 1952 | |
| 1953 | /* Should be held with conf_lock held */ |
| 1954 | int |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1955 | bnad_setup_tx(struct bnad *bnad, u32 tx_id) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1956 | { |
| 1957 | int err; |
| 1958 | struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id]; |
| 1959 | struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0]; |
| 1960 | struct bna_intr_info *intr_info = |
| 1961 | &res_info[BNA_TX_RES_INTR_T_TXCMPL].res_u.intr_info; |
| 1962 | struct bna_tx_config *tx_config = &bnad->tx_config[tx_id]; |
stephen hemminger | d91d25d | 2011-09-16 11:09:51 +0000 | [diff] [blame] | 1963 | static const struct bna_tx_event_cbfn tx_cbfn = { |
| 1964 | .tcb_setup_cbfn = bnad_cb_tcb_setup, |
| 1965 | .tcb_destroy_cbfn = bnad_cb_tcb_destroy, |
| 1966 | .tx_stall_cbfn = bnad_cb_tx_stall, |
| 1967 | .tx_resume_cbfn = bnad_cb_tx_resume, |
| 1968 | .tx_cleanup_cbfn = bnad_cb_tx_cleanup, |
| 1969 | }; |
| 1970 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1971 | struct bna_tx *tx; |
| 1972 | unsigned long flags; |
| 1973 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1974 | tx_info->tx_id = tx_id; |
| 1975 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1976 | /* Initialize the Tx object configuration */ |
| 1977 | tx_config->num_txq = bnad->num_txq_per_tx; |
| 1978 | tx_config->txq_depth = bnad->txq_depth; |
| 1979 | tx_config->tx_type = BNA_TX_T_REGULAR; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1980 | tx_config->coalescing_timeo = bnad->tx_coalescing_timeo; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1981 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1982 | /* Get BNA's resource requirement for one tx object */ |
| 1983 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1984 | bna_tx_res_req(bnad->num_txq_per_tx, |
| 1985 | bnad->txq_depth, res_info); |
| 1986 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1987 | |
| 1988 | /* Fill Unmap Q memory requirements */ |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 1989 | BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_TX_RES_MEM_T_UNMAPQ], |
| 1990 | bnad->num_txq_per_tx, (sizeof(struct bnad_tx_unmap) * |
| 1991 | bnad->txq_depth)); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1992 | |
| 1993 | /* Allocate resources */ |
| 1994 | err = bnad_tx_res_alloc(bnad, res_info, tx_id); |
| 1995 | if (err) |
| 1996 | return err; |
| 1997 | |
| 1998 | /* Ask BNA to create one Tx object, supplying required resources */ |
| 1999 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2000 | tx = bna_tx_create(&bnad->bna, bnad, tx_config, &tx_cbfn, res_info, |
| 2001 | tx_info); |
| 2002 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | f29eeb7 | 2013-12-17 17:07:39 -0800 | [diff] [blame] | 2003 | if (!tx) { |
| 2004 | err = -ENOMEM; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2005 | goto err_return; |
Rasesh Mody | f29eeb7 | 2013-12-17 17:07:39 -0800 | [diff] [blame] | 2006 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2007 | tx_info->tx = tx; |
| 2008 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 2009 | INIT_DELAYED_WORK(&tx_info->tx_cleanup_work, |
| 2010 | (work_func_t)bnad_tx_cleanup); |
| 2011 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2012 | /* Register ISR for the Tx object */ |
| 2013 | if (intr_info->intr_type == BNA_INTR_T_MSIX) { |
| 2014 | err = bnad_tx_msix_register(bnad, tx_info, |
| 2015 | tx_id, bnad->num_txq_per_tx); |
| 2016 | if (err) |
Rasesh Mody | f29eeb7 | 2013-12-17 17:07:39 -0800 | [diff] [blame] | 2017 | goto cleanup_tx; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2018 | } |
| 2019 | |
| 2020 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2021 | bna_tx_enable(tx); |
| 2022 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2023 | |
| 2024 | return 0; |
| 2025 | |
Rasesh Mody | f29eeb7 | 2013-12-17 17:07:39 -0800 | [diff] [blame] | 2026 | cleanup_tx: |
| 2027 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2028 | bna_tx_destroy(tx_info->tx); |
| 2029 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2030 | tx_info->tx = NULL; |
| 2031 | tx_info->tx_id = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2032 | err_return: |
| 2033 | bnad_tx_res_free(bnad, res_info); |
| 2034 | return err; |
| 2035 | } |
| 2036 | |
| 2037 | /* Setup the rx config for bna_rx_create */ |
| 2038 | /* bnad decides the configuration */ |
| 2039 | static void |
| 2040 | bnad_init_rx_config(struct bnad *bnad, struct bna_rx_config *rx_config) |
| 2041 | { |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 2042 | memset(rx_config, 0, sizeof(*rx_config)); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2043 | rx_config->rx_type = BNA_RX_T_REGULAR; |
| 2044 | rx_config->num_paths = bnad->num_rxp_per_rx; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2045 | rx_config->coalescing_timeo = bnad->rx_coalescing_timeo; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2046 | |
| 2047 | if (bnad->num_rxp_per_rx > 1) { |
| 2048 | rx_config->rss_status = BNA_STATUS_T_ENABLED; |
| 2049 | rx_config->rss_config.hash_type = |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2050 | (BFI_ENET_RSS_IPV6 | |
| 2051 | BFI_ENET_RSS_IPV6_TCP | |
| 2052 | BFI_ENET_RSS_IPV4 | |
| 2053 | BFI_ENET_RSS_IPV4_TCP); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2054 | rx_config->rss_config.hash_mask = |
| 2055 | bnad->num_rxp_per_rx - 1; |
| 2056 | get_random_bytes(rx_config->rss_config.toeplitz_hash_key, |
| 2057 | sizeof(rx_config->rss_config.toeplitz_hash_key)); |
| 2058 | } else { |
| 2059 | rx_config->rss_status = BNA_STATUS_T_DISABLED; |
| 2060 | memset(&rx_config->rss_config, 0, |
| 2061 | sizeof(rx_config->rss_config)); |
| 2062 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2063 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 2064 | rx_config->frame_size = BNAD_FRAME_SIZE(bnad->netdev->mtu); |
| 2065 | rx_config->q0_multi_buf = BNA_STATUS_T_DISABLED; |
| 2066 | |
| 2067 | /* BNA_RXP_SINGLE - one data-buffer queue |
| 2068 | * BNA_RXP_SLR - one small-buffer and one large-buffer queues |
| 2069 | * BNA_RXP_HDS - one header-buffer and one data-buffer queues |
| 2070 | */ |
| 2071 | /* TODO: configurable param for queue type */ |
| 2072 | rx_config->rxp_type = BNA_RXP_SLR; |
| 2073 | |
| 2074 | if (BNAD_PCI_DEV_IS_CAT2(bnad) && |
| 2075 | rx_config->frame_size > 4096) { |
| 2076 | /* though size_routing_enable is set in SLR, |
| 2077 | * small packets may get routed to same rxq. |
| 2078 | * set buf_size to 2048 instead of PAGE_SIZE. |
| 2079 | */ |
| 2080 | rx_config->q0_buf_size = 2048; |
| 2081 | /* this should be in multiples of 2 */ |
| 2082 | rx_config->q0_num_vecs = 4; |
| 2083 | rx_config->q0_depth = bnad->rxq_depth * rx_config->q0_num_vecs; |
| 2084 | rx_config->q0_multi_buf = BNA_STATUS_T_ENABLED; |
| 2085 | } else { |
| 2086 | rx_config->q0_buf_size = rx_config->frame_size; |
| 2087 | rx_config->q0_num_vecs = 1; |
| 2088 | rx_config->q0_depth = bnad->rxq_depth; |
| 2089 | } |
| 2090 | |
| 2091 | /* initialize for q1 for BNA_RXP_SLR/BNA_RXP_HDS */ |
| 2092 | if (rx_config->rxp_type == BNA_RXP_SLR) { |
| 2093 | rx_config->q1_depth = bnad->rxq_depth; |
| 2094 | rx_config->q1_buf_size = BFI_SMALL_RXBUF_SIZE; |
| 2095 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2096 | |
| 2097 | rx_config->vlan_strip_status = BNA_STATUS_T_ENABLED; |
| 2098 | } |
| 2099 | |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 2100 | static void |
| 2101 | bnad_rx_ctrl_init(struct bnad *bnad, u32 rx_id) |
| 2102 | { |
| 2103 | struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id]; |
| 2104 | int i; |
| 2105 | |
| 2106 | for (i = 0; i < bnad->num_rxp_per_rx; i++) |
| 2107 | rx_info->rx_ctrl[i].bnad = bnad; |
| 2108 | } |
| 2109 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2110 | /* Called with mutex_lock(&bnad->conf_mutex) held */ |
stephen hemminger | 2fd888a | 2014-01-15 08:24:21 -0800 | [diff] [blame] | 2111 | static u32 |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 2112 | bnad_reinit_rx(struct bnad *bnad) |
| 2113 | { |
| 2114 | struct net_device *netdev = bnad->netdev; |
| 2115 | u32 err = 0, current_err = 0; |
| 2116 | u32 rx_id = 0, count = 0; |
| 2117 | unsigned long flags; |
| 2118 | |
| 2119 | /* destroy and create new rx objects */ |
| 2120 | for (rx_id = 0; rx_id < bnad->num_rx; rx_id++) { |
| 2121 | if (!bnad->rx_info[rx_id].rx) |
| 2122 | continue; |
| 2123 | bnad_destroy_rx(bnad, rx_id); |
| 2124 | } |
| 2125 | |
| 2126 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2127 | bna_enet_mtu_set(&bnad->bna.enet, |
| 2128 | BNAD_FRAME_SIZE(bnad->netdev->mtu), NULL); |
| 2129 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2130 | |
| 2131 | for (rx_id = 0; rx_id < bnad->num_rx; rx_id++) { |
| 2132 | count++; |
| 2133 | current_err = bnad_setup_rx(bnad, rx_id); |
| 2134 | if (current_err && !err) { |
| 2135 | err = current_err; |
| 2136 | pr_err("RXQ:%u setup failed\n", rx_id); |
| 2137 | } |
| 2138 | } |
| 2139 | |
| 2140 | /* restore rx configuration */ |
| 2141 | if (bnad->rx_info[0].rx && !err) { |
| 2142 | bnad_restore_vlans(bnad, 0); |
| 2143 | bnad_enable_default_bcast(bnad); |
| 2144 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2145 | bnad_mac_addr_set_locked(bnad, netdev->dev_addr); |
| 2146 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2147 | bnad_set_rx_mode(netdev); |
| 2148 | } |
| 2149 | |
| 2150 | return count; |
| 2151 | } |
| 2152 | |
| 2153 | /* Called with bnad_conf_lock() held */ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2154 | void |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 2155 | bnad_destroy_rx(struct bnad *bnad, u32 rx_id) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2156 | { |
| 2157 | struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id]; |
| 2158 | struct bna_rx_config *rx_config = &bnad->rx_config[rx_id]; |
| 2159 | struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0]; |
| 2160 | unsigned long flags; |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2161 | int to_del = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2162 | |
| 2163 | if (!rx_info->rx) |
| 2164 | return; |
| 2165 | |
| 2166 | if (0 == rx_id) { |
| 2167 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2168 | if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED && |
| 2169 | test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2170 | clear_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2171 | to_del = 1; |
| 2172 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2173 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2174 | if (to_del) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2175 | del_timer_sync(&bnad->dim_timer); |
| 2176 | } |
| 2177 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2178 | init_completion(&bnad->bnad_completions.rx_comp); |
| 2179 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2180 | bna_rx_disable(rx_info->rx, BNA_HARD_CLEANUP, bnad_cb_rx_disabled); |
| 2181 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2182 | wait_for_completion(&bnad->bnad_completions.rx_comp); |
| 2183 | |
| 2184 | if (rx_info->rx_ctrl[0].ccb->intr_type == BNA_INTR_T_MSIX) |
| 2185 | bnad_rx_msix_unregister(bnad, rx_info, rx_config->num_paths); |
| 2186 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 2187 | bnad_napi_delete(bnad, rx_id); |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 2188 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2189 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2190 | bna_rx_destroy(rx_info->rx); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2191 | |
| 2192 | rx_info->rx = NULL; |
Rasesh Mody | 3caa1e95 | 2011-08-30 15:27:42 +0000 | [diff] [blame] | 2193 | rx_info->rx_id = 0; |
Rasesh Mody | b9fa1fb | 2011-09-16 15:06:48 +0000 | [diff] [blame] | 2194 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2195 | |
| 2196 | bnad_rx_res_free(bnad, res_info); |
| 2197 | } |
| 2198 | |
| 2199 | /* Called with mutex_lock(&bnad->conf_mutex) held */ |
| 2200 | int |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2201 | bnad_setup_rx(struct bnad *bnad, u32 rx_id) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2202 | { |
| 2203 | int err; |
| 2204 | struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id]; |
| 2205 | struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0]; |
| 2206 | struct bna_intr_info *intr_info = |
| 2207 | &res_info[BNA_RX_RES_T_INTR].res_u.intr_info; |
| 2208 | struct bna_rx_config *rx_config = &bnad->rx_config[rx_id]; |
stephen hemminger | d91d25d | 2011-09-16 11:09:51 +0000 | [diff] [blame] | 2209 | static const struct bna_rx_event_cbfn rx_cbfn = { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2210 | .rcb_setup_cbfn = NULL, |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 2211 | .rcb_destroy_cbfn = NULL, |
stephen hemminger | d91d25d | 2011-09-16 11:09:51 +0000 | [diff] [blame] | 2212 | .ccb_setup_cbfn = bnad_cb_ccb_setup, |
| 2213 | .ccb_destroy_cbfn = bnad_cb_ccb_destroy, |
Rasesh Mody | 5bcf6ac | 2011-09-27 10:39:10 +0000 | [diff] [blame] | 2214 | .rx_stall_cbfn = bnad_cb_rx_stall, |
stephen hemminger | d91d25d | 2011-09-16 11:09:51 +0000 | [diff] [blame] | 2215 | .rx_cleanup_cbfn = bnad_cb_rx_cleanup, |
| 2216 | .rx_post_cbfn = bnad_cb_rx_post, |
| 2217 | }; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2218 | struct bna_rx *rx; |
| 2219 | unsigned long flags; |
| 2220 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2221 | rx_info->rx_id = rx_id; |
| 2222 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2223 | /* Initialize the Rx object configuration */ |
| 2224 | bnad_init_rx_config(bnad, rx_config); |
| 2225 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2226 | /* Get BNA's resource requirement for one Rx object */ |
| 2227 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2228 | bna_rx_res_req(rx_config, res_info); |
| 2229 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2230 | |
| 2231 | /* Fill Unmap Q memory requirements */ |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 2232 | BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_RX_RES_MEM_T_UNMAPDQ], |
| 2233 | rx_config->num_paths, |
| 2234 | (rx_config->q0_depth * |
| 2235 | sizeof(struct bnad_rx_unmap)) + |
| 2236 | sizeof(struct bnad_rx_unmap_q)); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2237 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 2238 | if (rx_config->rxp_type != BNA_RXP_SINGLE) { |
| 2239 | BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_RX_RES_MEM_T_UNMAPHQ], |
| 2240 | rx_config->num_paths, |
| 2241 | (rx_config->q1_depth * |
| 2242 | sizeof(struct bnad_rx_unmap) + |
| 2243 | sizeof(struct bnad_rx_unmap_q))); |
| 2244 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2245 | /* Allocate resource */ |
| 2246 | err = bnad_rx_res_alloc(bnad, res_info, rx_id); |
| 2247 | if (err) |
| 2248 | return err; |
| 2249 | |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 2250 | bnad_rx_ctrl_init(bnad, rx_id); |
| 2251 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2252 | /* Ask BNA to create one Rx object, supplying required resources */ |
| 2253 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2254 | rx = bna_rx_create(&bnad->bna, bnad, rx_config, &rx_cbfn, res_info, |
| 2255 | rx_info); |
Rasesh Mody | 3caa1e95 | 2011-08-30 15:27:42 +0000 | [diff] [blame] | 2256 | if (!rx) { |
| 2257 | err = -ENOMEM; |
Rasesh Mody | b9fa1fb | 2011-09-16 15:06:48 +0000 | [diff] [blame] | 2258 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2259 | goto err_return; |
Rasesh Mody | 3caa1e95 | 2011-08-30 15:27:42 +0000 | [diff] [blame] | 2260 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2261 | rx_info->rx = rx; |
Rasesh Mody | b9fa1fb | 2011-09-16 15:06:48 +0000 | [diff] [blame] | 2262 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2263 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 2264 | INIT_WORK(&rx_info->rx_cleanup_work, |
| 2265 | (work_func_t)(bnad_rx_cleanup)); |
| 2266 | |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 2267 | /* |
| 2268 | * Init NAPI, so that state is set to NAPI_STATE_SCHED, |
| 2269 | * so that IRQ handler cannot schedule NAPI at this point. |
| 2270 | */ |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 2271 | bnad_napi_add(bnad, rx_id); |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 2272 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2273 | /* Register ISR for the Rx object */ |
| 2274 | if (intr_info->intr_type == BNA_INTR_T_MSIX) { |
| 2275 | err = bnad_rx_msix_register(bnad, rx_info, rx_id, |
| 2276 | rx_config->num_paths); |
| 2277 | if (err) |
| 2278 | goto err_return; |
| 2279 | } |
| 2280 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2281 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2282 | if (0 == rx_id) { |
| 2283 | /* Set up Dynamic Interrupt Moderation Vector */ |
| 2284 | if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED) |
| 2285 | bna_rx_dim_reconfig(&bnad->bna, bna_napi_dim_vector); |
| 2286 | |
| 2287 | /* Enable VLAN filtering only on the default Rx */ |
| 2288 | bna_rx_vlanfilter_enable(rx); |
| 2289 | |
| 2290 | /* Start the DIM timer */ |
| 2291 | bnad_dim_timer_start(bnad); |
| 2292 | } |
| 2293 | |
| 2294 | bna_rx_enable(rx); |
| 2295 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2296 | |
| 2297 | return 0; |
| 2298 | |
| 2299 | err_return: |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 2300 | bnad_destroy_rx(bnad, rx_id); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2301 | return err; |
| 2302 | } |
| 2303 | |
| 2304 | /* Called with conf_lock & bnad->bna_lock held */ |
| 2305 | void |
| 2306 | bnad_tx_coalescing_timeo_set(struct bnad *bnad) |
| 2307 | { |
| 2308 | struct bnad_tx_info *tx_info; |
| 2309 | |
| 2310 | tx_info = &bnad->tx_info[0]; |
| 2311 | if (!tx_info->tx) |
| 2312 | return; |
| 2313 | |
| 2314 | bna_tx_coalescing_timeo_set(tx_info->tx, bnad->tx_coalescing_timeo); |
| 2315 | } |
| 2316 | |
| 2317 | /* Called with conf_lock & bnad->bna_lock held */ |
| 2318 | void |
| 2319 | bnad_rx_coalescing_timeo_set(struct bnad *bnad) |
| 2320 | { |
| 2321 | struct bnad_rx_info *rx_info; |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 2322 | int i; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2323 | |
| 2324 | for (i = 0; i < bnad->num_rx; i++) { |
| 2325 | rx_info = &bnad->rx_info[i]; |
| 2326 | if (!rx_info->rx) |
| 2327 | continue; |
| 2328 | bna_rx_coalescing_timeo_set(rx_info->rx, |
| 2329 | bnad->rx_coalescing_timeo); |
| 2330 | } |
| 2331 | } |
| 2332 | |
| 2333 | /* |
| 2334 | * Called with bnad->bna_lock held |
| 2335 | */ |
Rasesh Mody | a2122d9 | 2011-08-30 15:27:43 +0000 | [diff] [blame] | 2336 | int |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2337 | bnad_mac_addr_set_locked(struct bnad *bnad, u8 *mac_addr) |
| 2338 | { |
| 2339 | int ret; |
| 2340 | |
| 2341 | if (!is_valid_ether_addr(mac_addr)) |
| 2342 | return -EADDRNOTAVAIL; |
| 2343 | |
| 2344 | /* If datapath is down, pretend everything went through */ |
| 2345 | if (!bnad->rx_info[0].rx) |
| 2346 | return 0; |
| 2347 | |
| 2348 | ret = bna_rx_ucast_set(bnad->rx_info[0].rx, mac_addr, NULL); |
| 2349 | if (ret != BNA_CB_SUCCESS) |
| 2350 | return -EADDRNOTAVAIL; |
| 2351 | |
| 2352 | return 0; |
| 2353 | } |
| 2354 | |
| 2355 | /* Should be called with conf_lock held */ |
Rasesh Mody | a2122d9 | 2011-08-30 15:27:43 +0000 | [diff] [blame] | 2356 | int |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2357 | bnad_enable_default_bcast(struct bnad *bnad) |
| 2358 | { |
| 2359 | struct bnad_rx_info *rx_info = &bnad->rx_info[0]; |
| 2360 | int ret; |
| 2361 | unsigned long flags; |
| 2362 | |
| 2363 | init_completion(&bnad->bnad_completions.mcast_comp); |
| 2364 | |
| 2365 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2366 | ret = bna_rx_mcast_add(rx_info->rx, (u8 *)bnad_bcast_addr, |
| 2367 | bnad_cb_rx_mcast_add); |
| 2368 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2369 | |
| 2370 | if (ret == BNA_CB_SUCCESS) |
| 2371 | wait_for_completion(&bnad->bnad_completions.mcast_comp); |
| 2372 | else |
| 2373 | return -ENODEV; |
| 2374 | |
| 2375 | if (bnad->bnad_completions.mcast_comp_status != BNA_CB_SUCCESS) |
| 2376 | return -ENODEV; |
| 2377 | |
| 2378 | return 0; |
| 2379 | } |
| 2380 | |
Rasesh Mody | 19dbff9 | 2011-08-30 15:27:41 +0000 | [diff] [blame] | 2381 | /* Called with mutex_lock(&bnad->conf_mutex) held */ |
Rasesh Mody | a2122d9 | 2011-08-30 15:27:43 +0000 | [diff] [blame] | 2382 | void |
Rasesh Mody | aad75b6 | 2010-12-23 21:45:08 +0000 | [diff] [blame] | 2383 | bnad_restore_vlans(struct bnad *bnad, u32 rx_id) |
| 2384 | { |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 2385 | u16 vid; |
Rasesh Mody | aad75b6 | 2010-12-23 21:45:08 +0000 | [diff] [blame] | 2386 | unsigned long flags; |
| 2387 | |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 2388 | for_each_set_bit(vid, bnad->active_vlans, VLAN_N_VID) { |
Rasesh Mody | aad75b6 | 2010-12-23 21:45:08 +0000 | [diff] [blame] | 2389 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 2390 | bna_rx_vlan_add(bnad->rx_info[rx_id].rx, vid); |
Rasesh Mody | aad75b6 | 2010-12-23 21:45:08 +0000 | [diff] [blame] | 2391 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2392 | } |
| 2393 | } |
| 2394 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2395 | /* Statistics utilities */ |
| 2396 | void |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2397 | bnad_netdev_qstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2398 | { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2399 | int i, j; |
| 2400 | |
| 2401 | for (i = 0; i < bnad->num_rx; i++) { |
| 2402 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { |
| 2403 | if (bnad->rx_info[i].rx_ctrl[j].ccb) { |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2404 | stats->rx_packets += bnad->rx_info[i]. |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2405 | rx_ctrl[j].ccb->rcb[0]->rxq->rx_packets; |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2406 | stats->rx_bytes += bnad->rx_info[i]. |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2407 | rx_ctrl[j].ccb->rcb[0]->rxq->rx_bytes; |
| 2408 | if (bnad->rx_info[i].rx_ctrl[j].ccb->rcb[1] && |
| 2409 | bnad->rx_info[i].rx_ctrl[j].ccb-> |
| 2410 | rcb[1]->rxq) { |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2411 | stats->rx_packets += |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2412 | bnad->rx_info[i].rx_ctrl[j]. |
| 2413 | ccb->rcb[1]->rxq->rx_packets; |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2414 | stats->rx_bytes += |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2415 | bnad->rx_info[i].rx_ctrl[j]. |
| 2416 | ccb->rcb[1]->rxq->rx_bytes; |
| 2417 | } |
| 2418 | } |
| 2419 | } |
| 2420 | } |
| 2421 | for (i = 0; i < bnad->num_tx; i++) { |
| 2422 | for (j = 0; j < bnad->num_txq_per_tx; j++) { |
| 2423 | if (bnad->tx_info[i].tcb[j]) { |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2424 | stats->tx_packets += |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2425 | bnad->tx_info[i].tcb[j]->txq->tx_packets; |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2426 | stats->tx_bytes += |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2427 | bnad->tx_info[i].tcb[j]->txq->tx_bytes; |
| 2428 | } |
| 2429 | } |
| 2430 | } |
| 2431 | } |
| 2432 | |
| 2433 | /* |
| 2434 | * Must be called with the bna_lock held. |
| 2435 | */ |
| 2436 | void |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2437 | bnad_netdev_hwstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2438 | { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2439 | struct bfi_enet_stats_mac *mac_stats; |
| 2440 | u32 bmap; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2441 | int i; |
| 2442 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2443 | mac_stats = &bnad->stats.bna_stats->hw_stats.mac_stats; |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2444 | stats->rx_errors = |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2445 | mac_stats->rx_fcs_error + mac_stats->rx_alignment_error + |
| 2446 | mac_stats->rx_frame_length_error + mac_stats->rx_code_error + |
| 2447 | mac_stats->rx_undersize; |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2448 | stats->tx_errors = mac_stats->tx_fcs_error + |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2449 | mac_stats->tx_undersize; |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2450 | stats->rx_dropped = mac_stats->rx_drop; |
| 2451 | stats->tx_dropped = mac_stats->tx_drop; |
| 2452 | stats->multicast = mac_stats->rx_multicast; |
| 2453 | stats->collisions = mac_stats->tx_total_collision; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2454 | |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2455 | stats->rx_length_errors = mac_stats->rx_frame_length_error; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2456 | |
| 2457 | /* receive ring buffer overflow ?? */ |
| 2458 | |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2459 | stats->rx_crc_errors = mac_stats->rx_fcs_error; |
| 2460 | stats->rx_frame_errors = mac_stats->rx_alignment_error; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2461 | /* recv'r fifo overrun */ |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2462 | bmap = bna_rx_rid_mask(&bnad->bna); |
| 2463 | for (i = 0; bmap; i++) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2464 | if (bmap & 1) { |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2465 | stats->rx_fifo_errors += |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2466 | bnad->stats.bna_stats-> |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2467 | hw_stats.rxf_stats[i].frame_drops; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2468 | break; |
| 2469 | } |
| 2470 | bmap >>= 1; |
| 2471 | } |
| 2472 | } |
| 2473 | |
| 2474 | static void |
| 2475 | bnad_mbox_irq_sync(struct bnad *bnad) |
| 2476 | { |
| 2477 | u32 irq; |
| 2478 | unsigned long flags; |
| 2479 | |
| 2480 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2481 | if (bnad->cfg_flags & BNAD_CF_MSIX) |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 2482 | irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2483 | else |
| 2484 | irq = bnad->pcidev->irq; |
| 2485 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2486 | |
| 2487 | synchronize_irq(irq); |
| 2488 | } |
| 2489 | |
| 2490 | /* Utility used by bnad_start_xmit, for doing TSO */ |
| 2491 | static int |
| 2492 | bnad_tso_prepare(struct bnad *bnad, struct sk_buff *skb) |
| 2493 | { |
| 2494 | int err; |
| 2495 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2496 | if (skb_header_cloned(skb)) { |
| 2497 | err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); |
| 2498 | if (err) { |
| 2499 | BNAD_UPDATE_CTR(bnad, tso_err); |
| 2500 | return err; |
| 2501 | } |
| 2502 | } |
| 2503 | |
| 2504 | /* |
| 2505 | * For TSO, the TCP checksum field is seeded with pseudo-header sum |
| 2506 | * excluding the length field. |
| 2507 | */ |
| 2508 | if (skb->protocol == htons(ETH_P_IP)) { |
| 2509 | struct iphdr *iph = ip_hdr(skb); |
| 2510 | |
| 2511 | /* Do we really need these? */ |
| 2512 | iph->tot_len = 0; |
| 2513 | iph->check = 0; |
| 2514 | |
| 2515 | tcp_hdr(skb)->check = |
| 2516 | ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0, |
| 2517 | IPPROTO_TCP, 0); |
| 2518 | BNAD_UPDATE_CTR(bnad, tso4); |
| 2519 | } else { |
| 2520 | struct ipv6hdr *ipv6h = ipv6_hdr(skb); |
| 2521 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2522 | ipv6h->payload_len = 0; |
| 2523 | tcp_hdr(skb)->check = |
| 2524 | ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, 0, |
| 2525 | IPPROTO_TCP, 0); |
| 2526 | BNAD_UPDATE_CTR(bnad, tso6); |
| 2527 | } |
| 2528 | |
| 2529 | return 0; |
| 2530 | } |
| 2531 | |
| 2532 | /* |
| 2533 | * Initialize Q numbers depending on Rx Paths |
| 2534 | * Called with bnad->bna_lock held, because of cfg_flags |
| 2535 | * access. |
| 2536 | */ |
| 2537 | static void |
| 2538 | bnad_q_num_init(struct bnad *bnad) |
| 2539 | { |
| 2540 | int rxps; |
| 2541 | |
| 2542 | rxps = min((uint)num_online_cpus(), |
Rasesh Mody | 772b523 | 2011-08-30 15:27:37 +0000 | [diff] [blame] | 2543 | (uint)(BNAD_MAX_RX * BNAD_MAX_RXP_PER_RX)); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2544 | |
| 2545 | if (!(bnad->cfg_flags & BNAD_CF_MSIX)) |
| 2546 | rxps = 1; /* INTx */ |
| 2547 | |
| 2548 | bnad->num_rx = 1; |
| 2549 | bnad->num_tx = 1; |
| 2550 | bnad->num_rxp_per_rx = rxps; |
| 2551 | bnad->num_txq_per_tx = BNAD_TXQ_NUM; |
| 2552 | } |
| 2553 | |
| 2554 | /* |
| 2555 | * Adjusts the Q numbers, given a number of msix vectors |
| 2556 | * Give preference to RSS as opposed to Tx priority Queues, |
| 2557 | * in such a case, just use 1 Tx Q |
| 2558 | * Called with bnad->bna_lock held b'cos of cfg_flags access |
| 2559 | */ |
| 2560 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2561 | bnad_q_num_adjust(struct bnad *bnad, int msix_vectors, int temp) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2562 | { |
| 2563 | bnad->num_txq_per_tx = 1; |
| 2564 | if ((msix_vectors >= (bnad->num_tx * bnad->num_txq_per_tx) + |
| 2565 | bnad_rxqs_per_cq + BNAD_MAILBOX_MSIX_VECTORS) && |
| 2566 | (bnad->cfg_flags & BNAD_CF_MSIX)) { |
| 2567 | bnad->num_rxp_per_rx = msix_vectors - |
| 2568 | (bnad->num_tx * bnad->num_txq_per_tx) - |
| 2569 | BNAD_MAILBOX_MSIX_VECTORS; |
| 2570 | } else |
| 2571 | bnad->num_rxp_per_rx = 1; |
| 2572 | } |
| 2573 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2574 | /* Enable / disable ioceth */ |
| 2575 | static int |
| 2576 | bnad_ioceth_disable(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2577 | { |
| 2578 | unsigned long flags; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2579 | int err = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2580 | |
| 2581 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2582 | init_completion(&bnad->bnad_completions.ioc_comp); |
| 2583 | bna_ioceth_disable(&bnad->bna.ioceth, BNA_HARD_CLEANUP); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2584 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2585 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2586 | wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp, |
| 2587 | msecs_to_jiffies(BNAD_IOCETH_TIMEOUT)); |
| 2588 | |
| 2589 | err = bnad->bnad_completions.ioc_comp_status; |
| 2590 | return err; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2591 | } |
| 2592 | |
| 2593 | static int |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2594 | bnad_ioceth_enable(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2595 | { |
| 2596 | int err = 0; |
| 2597 | unsigned long flags; |
| 2598 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2599 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2600 | init_completion(&bnad->bnad_completions.ioc_comp); |
| 2601 | bnad->bnad_completions.ioc_comp_status = BNA_CB_WAITING; |
| 2602 | bna_ioceth_enable(&bnad->bna.ioceth); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2603 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2604 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2605 | wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp, |
| 2606 | msecs_to_jiffies(BNAD_IOCETH_TIMEOUT)); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2607 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2608 | err = bnad->bnad_completions.ioc_comp_status; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2609 | |
| 2610 | return err; |
| 2611 | } |
| 2612 | |
| 2613 | /* Free BNA resources */ |
| 2614 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2615 | bnad_res_free(struct bnad *bnad, struct bna_res_info *res_info, |
| 2616 | u32 res_val_max) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2617 | { |
| 2618 | int i; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2619 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2620 | for (i = 0; i < res_val_max; i++) |
| 2621 | bnad_mem_free(bnad, &res_info[i].res_u.mem_info); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2622 | } |
| 2623 | |
| 2624 | /* Allocates memory and interrupt resources for BNA */ |
| 2625 | static int |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2626 | bnad_res_alloc(struct bnad *bnad, struct bna_res_info *res_info, |
| 2627 | u32 res_val_max) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2628 | { |
| 2629 | int i, err; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2630 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2631 | for (i = 0; i < res_val_max; i++) { |
| 2632 | err = bnad_mem_alloc(bnad, &res_info[i].res_u.mem_info); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2633 | if (err) |
| 2634 | goto err_return; |
| 2635 | } |
| 2636 | return 0; |
| 2637 | |
| 2638 | err_return: |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2639 | bnad_res_free(bnad, res_info, res_val_max); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2640 | return err; |
| 2641 | } |
| 2642 | |
| 2643 | /* Interrupt enable / disable */ |
| 2644 | static void |
| 2645 | bnad_enable_msix(struct bnad *bnad) |
| 2646 | { |
| 2647 | int i, ret; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2648 | unsigned long flags; |
| 2649 | |
| 2650 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2651 | if (!(bnad->cfg_flags & BNAD_CF_MSIX)) { |
| 2652 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2653 | return; |
| 2654 | } |
| 2655 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2656 | |
| 2657 | if (bnad->msix_table) |
| 2658 | return; |
| 2659 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2660 | bnad->msix_table = |
Rasesh Mody | b7ee31c5 | 2010-10-05 15:46:05 +0000 | [diff] [blame] | 2661 | kcalloc(bnad->msix_num, sizeof(struct msix_entry), GFP_KERNEL); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2662 | |
| 2663 | if (!bnad->msix_table) |
| 2664 | goto intx_mode; |
| 2665 | |
Rasesh Mody | b7ee31c5 | 2010-10-05 15:46:05 +0000 | [diff] [blame] | 2666 | for (i = 0; i < bnad->msix_num; i++) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2667 | bnad->msix_table[i].entry = i; |
| 2668 | |
Rasesh Mody | b7ee31c5 | 2010-10-05 15:46:05 +0000 | [diff] [blame] | 2669 | ret = pci_enable_msix(bnad->pcidev, bnad->msix_table, bnad->msix_num); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2670 | if (ret > 0) { |
| 2671 | /* Not enough MSI-X vectors. */ |
Rasesh Mody | 19dbff9 | 2011-08-30 15:27:41 +0000 | [diff] [blame] | 2672 | pr_warn("BNA: %d MSI-X vectors allocated < %d requested\n", |
| 2673 | ret, bnad->msix_num); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2674 | |
| 2675 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2676 | /* ret = #of vectors that we got */ |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2677 | bnad_q_num_adjust(bnad, (ret - BNAD_MAILBOX_MSIX_VECTORS) / 2, |
| 2678 | (ret - BNAD_MAILBOX_MSIX_VECTORS) / 2); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2679 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2680 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2681 | bnad->msix_num = BNAD_NUM_TXQ + BNAD_NUM_RXP + |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2682 | BNAD_MAILBOX_MSIX_VECTORS; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2683 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2684 | if (bnad->msix_num > ret) |
| 2685 | goto intx_mode; |
| 2686 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2687 | /* Try once more with adjusted numbers */ |
| 2688 | /* If this fails, fall back to INTx */ |
| 2689 | ret = pci_enable_msix(bnad->pcidev, bnad->msix_table, |
Rasesh Mody | b7ee31c5 | 2010-10-05 15:46:05 +0000 | [diff] [blame] | 2690 | bnad->msix_num); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2691 | if (ret) |
| 2692 | goto intx_mode; |
| 2693 | |
| 2694 | } else if (ret < 0) |
| 2695 | goto intx_mode; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2696 | |
| 2697 | pci_intx(bnad->pcidev, 0); |
| 2698 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2699 | return; |
| 2700 | |
| 2701 | intx_mode: |
Rasesh Mody | 19dbff9 | 2011-08-30 15:27:41 +0000 | [diff] [blame] | 2702 | pr_warn("BNA: MSI-X enable failed - operating in INTx mode\n"); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2703 | |
| 2704 | kfree(bnad->msix_table); |
| 2705 | bnad->msix_table = NULL; |
| 2706 | bnad->msix_num = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2707 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2708 | bnad->cfg_flags &= ~BNAD_CF_MSIX; |
| 2709 | bnad_q_num_init(bnad); |
| 2710 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2711 | } |
| 2712 | |
| 2713 | static void |
| 2714 | bnad_disable_msix(struct bnad *bnad) |
| 2715 | { |
| 2716 | u32 cfg_flags; |
| 2717 | unsigned long flags; |
| 2718 | |
| 2719 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2720 | cfg_flags = bnad->cfg_flags; |
| 2721 | if (bnad->cfg_flags & BNAD_CF_MSIX) |
| 2722 | bnad->cfg_flags &= ~BNAD_CF_MSIX; |
| 2723 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2724 | |
| 2725 | if (cfg_flags & BNAD_CF_MSIX) { |
| 2726 | pci_disable_msix(bnad->pcidev); |
| 2727 | kfree(bnad->msix_table); |
| 2728 | bnad->msix_table = NULL; |
| 2729 | } |
| 2730 | } |
| 2731 | |
| 2732 | /* Netdev entry points */ |
| 2733 | static int |
| 2734 | bnad_open(struct net_device *netdev) |
| 2735 | { |
| 2736 | int err; |
| 2737 | struct bnad *bnad = netdev_priv(netdev); |
| 2738 | struct bna_pause_config pause_config; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2739 | unsigned long flags; |
| 2740 | |
| 2741 | mutex_lock(&bnad->conf_mutex); |
| 2742 | |
| 2743 | /* Tx */ |
| 2744 | err = bnad_setup_tx(bnad, 0); |
| 2745 | if (err) |
| 2746 | goto err_return; |
| 2747 | |
| 2748 | /* Rx */ |
| 2749 | err = bnad_setup_rx(bnad, 0); |
| 2750 | if (err) |
| 2751 | goto cleanup_tx; |
| 2752 | |
| 2753 | /* Port */ |
| 2754 | pause_config.tx_pause = 0; |
| 2755 | pause_config.rx_pause = 0; |
| 2756 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2757 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 2758 | bna_enet_mtu_set(&bnad->bna.enet, |
| 2759 | BNAD_FRAME_SIZE(bnad->netdev->mtu), NULL); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2760 | bna_enet_pause_config(&bnad->bna.enet, &pause_config, NULL); |
| 2761 | bna_enet_enable(&bnad->bna.enet); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2762 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2763 | |
| 2764 | /* Enable broadcast */ |
| 2765 | bnad_enable_default_bcast(bnad); |
| 2766 | |
Rasesh Mody | aad75b6 | 2010-12-23 21:45:08 +0000 | [diff] [blame] | 2767 | /* Restore VLANs, if any */ |
| 2768 | bnad_restore_vlans(bnad, 0); |
| 2769 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2770 | /* Set the UCAST address */ |
| 2771 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2772 | bnad_mac_addr_set_locked(bnad, netdev->dev_addr); |
| 2773 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2774 | |
| 2775 | /* Start the stats timer */ |
| 2776 | bnad_stats_timer_start(bnad); |
| 2777 | |
| 2778 | mutex_unlock(&bnad->conf_mutex); |
| 2779 | |
| 2780 | return 0; |
| 2781 | |
| 2782 | cleanup_tx: |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 2783 | bnad_destroy_tx(bnad, 0); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2784 | |
| 2785 | err_return: |
| 2786 | mutex_unlock(&bnad->conf_mutex); |
| 2787 | return err; |
| 2788 | } |
| 2789 | |
| 2790 | static int |
| 2791 | bnad_stop(struct net_device *netdev) |
| 2792 | { |
| 2793 | struct bnad *bnad = netdev_priv(netdev); |
| 2794 | unsigned long flags; |
| 2795 | |
| 2796 | mutex_lock(&bnad->conf_mutex); |
| 2797 | |
| 2798 | /* Stop the stats timer */ |
| 2799 | bnad_stats_timer_stop(bnad); |
| 2800 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2801 | init_completion(&bnad->bnad_completions.enet_comp); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2802 | |
| 2803 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2804 | bna_enet_disable(&bnad->bna.enet, BNA_HARD_CLEANUP, |
| 2805 | bnad_cb_enet_disabled); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2806 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2807 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2808 | wait_for_completion(&bnad->bnad_completions.enet_comp); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2809 | |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 2810 | bnad_destroy_tx(bnad, 0); |
| 2811 | bnad_destroy_rx(bnad, 0); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2812 | |
| 2813 | /* Synchronize mailbox IRQ */ |
| 2814 | bnad_mbox_irq_sync(bnad); |
| 2815 | |
| 2816 | mutex_unlock(&bnad->conf_mutex); |
| 2817 | |
| 2818 | return 0; |
| 2819 | } |
| 2820 | |
| 2821 | /* TX */ |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2822 | /* Returns 0 for success */ |
| 2823 | static int |
| 2824 | bnad_txq_wi_prepare(struct bnad *bnad, struct bna_tcb *tcb, |
| 2825 | struct sk_buff *skb, struct bna_txq_entry *txqent) |
| 2826 | { |
| 2827 | u16 flags = 0; |
| 2828 | u32 gso_size; |
| 2829 | u16 vlan_tag = 0; |
| 2830 | |
| 2831 | if (vlan_tx_tag_present(skb)) { |
| 2832 | vlan_tag = (u16)vlan_tx_tag_get(skb); |
| 2833 | flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN); |
| 2834 | } |
| 2835 | if (test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) { |
| 2836 | vlan_tag = ((tcb->priority & 0x7) << VLAN_PRIO_SHIFT) |
| 2837 | | (vlan_tag & 0x1fff); |
| 2838 | flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN); |
| 2839 | } |
| 2840 | txqent->hdr.wi.vlan_tag = htons(vlan_tag); |
| 2841 | |
| 2842 | if (skb_is_gso(skb)) { |
| 2843 | gso_size = skb_shinfo(skb)->gso_size; |
| 2844 | if (unlikely(gso_size > bnad->netdev->mtu)) { |
| 2845 | BNAD_UPDATE_CTR(bnad, tx_skb_mss_too_long); |
| 2846 | return -EINVAL; |
| 2847 | } |
| 2848 | if (unlikely((gso_size + skb_transport_offset(skb) + |
| 2849 | tcp_hdrlen(skb)) >= skb->len)) { |
| 2850 | txqent->hdr.wi.opcode = |
| 2851 | __constant_htons(BNA_TXQ_WI_SEND); |
| 2852 | txqent->hdr.wi.lso_mss = 0; |
| 2853 | BNAD_UPDATE_CTR(bnad, tx_skb_tso_too_short); |
| 2854 | } else { |
| 2855 | txqent->hdr.wi.opcode = |
| 2856 | __constant_htons(BNA_TXQ_WI_SEND_LSO); |
| 2857 | txqent->hdr.wi.lso_mss = htons(gso_size); |
| 2858 | } |
| 2859 | |
| 2860 | if (bnad_tso_prepare(bnad, skb)) { |
| 2861 | BNAD_UPDATE_CTR(bnad, tx_skb_tso_prepare); |
| 2862 | return -EINVAL; |
| 2863 | } |
| 2864 | |
| 2865 | flags |= (BNA_TXQ_WI_CF_IP_CKSUM | BNA_TXQ_WI_CF_TCP_CKSUM); |
| 2866 | txqent->hdr.wi.l4_hdr_size_n_offset = |
| 2867 | htons(BNA_TXQ_WI_L4_HDR_N_OFFSET( |
| 2868 | tcp_hdrlen(skb) >> 2, skb_transport_offset(skb))); |
| 2869 | } else { |
| 2870 | txqent->hdr.wi.opcode = __constant_htons(BNA_TXQ_WI_SEND); |
| 2871 | txqent->hdr.wi.lso_mss = 0; |
| 2872 | |
| 2873 | if (unlikely(skb->len > (bnad->netdev->mtu + ETH_HLEN))) { |
| 2874 | BNAD_UPDATE_CTR(bnad, tx_skb_non_tso_too_long); |
| 2875 | return -EINVAL; |
| 2876 | } |
| 2877 | |
| 2878 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
| 2879 | u8 proto = 0; |
| 2880 | |
| 2881 | if (skb->protocol == __constant_htons(ETH_P_IP)) |
| 2882 | proto = ip_hdr(skb)->protocol; |
| 2883 | #ifdef NETIF_F_IPV6_CSUM |
| 2884 | else if (skb->protocol == |
| 2885 | __constant_htons(ETH_P_IPV6)) { |
| 2886 | /* nexthdr may not be TCP immediately. */ |
| 2887 | proto = ipv6_hdr(skb)->nexthdr; |
| 2888 | } |
| 2889 | #endif |
| 2890 | if (proto == IPPROTO_TCP) { |
| 2891 | flags |= BNA_TXQ_WI_CF_TCP_CKSUM; |
| 2892 | txqent->hdr.wi.l4_hdr_size_n_offset = |
| 2893 | htons(BNA_TXQ_WI_L4_HDR_N_OFFSET |
| 2894 | (0, skb_transport_offset(skb))); |
| 2895 | |
| 2896 | BNAD_UPDATE_CTR(bnad, tcpcsum_offload); |
| 2897 | |
| 2898 | if (unlikely(skb_headlen(skb) < |
| 2899 | skb_transport_offset(skb) + |
| 2900 | tcp_hdrlen(skb))) { |
| 2901 | BNAD_UPDATE_CTR(bnad, tx_skb_tcp_hdr); |
| 2902 | return -EINVAL; |
| 2903 | } |
| 2904 | } else if (proto == IPPROTO_UDP) { |
| 2905 | flags |= BNA_TXQ_WI_CF_UDP_CKSUM; |
| 2906 | txqent->hdr.wi.l4_hdr_size_n_offset = |
| 2907 | htons(BNA_TXQ_WI_L4_HDR_N_OFFSET |
| 2908 | (0, skb_transport_offset(skb))); |
| 2909 | |
| 2910 | BNAD_UPDATE_CTR(bnad, udpcsum_offload); |
| 2911 | if (unlikely(skb_headlen(skb) < |
| 2912 | skb_transport_offset(skb) + |
| 2913 | sizeof(struct udphdr))) { |
| 2914 | BNAD_UPDATE_CTR(bnad, tx_skb_udp_hdr); |
| 2915 | return -EINVAL; |
| 2916 | } |
| 2917 | } else { |
| 2918 | |
| 2919 | BNAD_UPDATE_CTR(bnad, tx_skb_csum_err); |
| 2920 | return -EINVAL; |
| 2921 | } |
| 2922 | } else |
| 2923 | txqent->hdr.wi.l4_hdr_size_n_offset = 0; |
| 2924 | } |
| 2925 | |
| 2926 | txqent->hdr.wi.flags = htons(flags); |
| 2927 | txqent->hdr.wi.frame_length = htonl(skb->len); |
| 2928 | |
| 2929 | return 0; |
| 2930 | } |
| 2931 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2932 | /* |
| 2933 | * bnad_start_xmit : Netdev entry point for Transmit |
| 2934 | * Called under lock held by net_device |
| 2935 | */ |
| 2936 | static netdev_tx_t |
| 2937 | bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev) |
| 2938 | { |
| 2939 | struct bnad *bnad = netdev_priv(netdev); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2940 | u32 txq_id = 0; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2941 | struct bna_tcb *tcb = NULL; |
| 2942 | struct bnad_tx_unmap *unmap_q, *unmap, *head_unmap; |
| 2943 | u32 prod, q_depth, vect_id; |
| 2944 | u32 wis, vectors, len; |
| 2945 | int i; |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 2946 | dma_addr_t dma_addr; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2947 | struct bna_txq_entry *txqent; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2948 | |
| 2949 | len = skb_headlen(skb); |
| 2950 | |
| 2951 | /* Sanity checks for the skb */ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2952 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2953 | if (unlikely(skb->len <= ETH_HLEN)) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2954 | dev_kfree_skb(skb); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2955 | BNAD_UPDATE_CTR(bnad, tx_skb_too_short); |
| 2956 | return NETDEV_TX_OK; |
| 2957 | } |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2958 | if (unlikely(len > BFI_TX_MAX_DATA_PER_VECTOR)) { |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2959 | dev_kfree_skb(skb); |
| 2960 | BNAD_UPDATE_CTR(bnad, tx_skb_headlen_zero); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2961 | return NETDEV_TX_OK; |
| 2962 | } |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2963 | if (unlikely(len == 0)) { |
| 2964 | dev_kfree_skb(skb); |
| 2965 | BNAD_UPDATE_CTR(bnad, tx_skb_headlen_zero); |
| 2966 | return NETDEV_TX_OK; |
| 2967 | } |
| 2968 | |
| 2969 | tcb = bnad->tx_info[0].tcb[txq_id]; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2970 | |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 2971 | /* |
| 2972 | * Takes care of the Tx that is scheduled between clearing the flag |
Rasesh Mody | 19dbff9 | 2011-08-30 15:27:41 +0000 | [diff] [blame] | 2973 | * and the netif_tx_stop_all_queues() call. |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 2974 | */ |
Rasesh Mody | 96e31ad | 2013-12-17 17:07:38 -0800 | [diff] [blame] | 2975 | if (unlikely(!tcb || !test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) { |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 2976 | dev_kfree_skb(skb); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2977 | BNAD_UPDATE_CTR(bnad, tx_skb_stopping); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 2978 | return NETDEV_TX_OK; |
| 2979 | } |
| 2980 | |
Rasesh Mody | 96e31ad | 2013-12-17 17:07:38 -0800 | [diff] [blame] | 2981 | q_depth = tcb->q_depth; |
| 2982 | prod = tcb->producer_index; |
| 2983 | unmap_q = tcb->unmap_q; |
| 2984 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2985 | vectors = 1 + skb_shinfo(skb)->nr_frags; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2986 | wis = BNA_TXQ_WI_NEEDED(vectors); /* 4 vectors per work item */ |
| 2987 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2988 | if (unlikely(vectors > BFI_TX_MAX_VECTORS_PER_PKT)) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2989 | dev_kfree_skb(skb); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2990 | BNAD_UPDATE_CTR(bnad, tx_skb_max_vectors); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2991 | return NETDEV_TX_OK; |
| 2992 | } |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2993 | |
| 2994 | /* Check for available TxQ resources */ |
| 2995 | if (unlikely(wis > BNA_QE_FREE_CNT(tcb, q_depth))) { |
| 2996 | if ((*tcb->hw_consumer_index != tcb->consumer_index) && |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2997 | !test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2998 | u32 sent; |
| 2999 | sent = bnad_txcmpl_process(bnad, tcb); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 3000 | if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3001 | bna_ib_ack(tcb->i_dbell, sent); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3002 | smp_mb__before_clear_bit(); |
| 3003 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); |
| 3004 | } else { |
| 3005 | netif_stop_queue(netdev); |
| 3006 | BNAD_UPDATE_CTR(bnad, netif_queue_stop); |
| 3007 | } |
| 3008 | |
| 3009 | smp_mb(); |
| 3010 | /* |
| 3011 | * Check again to deal with race condition between |
| 3012 | * netif_stop_queue here, and netif_wake_queue in |
| 3013 | * interrupt handler which is not inside netif tx lock. |
| 3014 | */ |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3015 | if (likely(wis > BNA_QE_FREE_CNT(tcb, q_depth))) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3016 | BNAD_UPDATE_CTR(bnad, netif_queue_stop); |
| 3017 | return NETDEV_TX_BUSY; |
| 3018 | } else { |
| 3019 | netif_wake_queue(netdev); |
| 3020 | BNAD_UPDATE_CTR(bnad, netif_queue_wakeup); |
| 3021 | } |
| 3022 | } |
| 3023 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3024 | txqent = &((struct bna_txq_entry *)tcb->sw_q)[prod]; |
| 3025 | head_unmap = &unmap_q[prod]; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3026 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3027 | /* Program the opcode, flags, frame_len, num_vectors in WI */ |
| 3028 | if (bnad_txq_wi_prepare(bnad, tcb, skb, txqent)) { |
| 3029 | dev_kfree_skb(skb); |
| 3030 | return NETDEV_TX_OK; |
| 3031 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3032 | txqent->hdr.wi.reserved = 0; |
| 3033 | txqent->hdr.wi.num_vectors = vectors; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3034 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3035 | head_unmap->skb = skb; |
| 3036 | head_unmap->nvecs = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3037 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3038 | /* Program the vectors */ |
| 3039 | unmap = head_unmap; |
Ivan Vecera | 5ea7431 | 2011-02-02 04:37:02 +0000 | [diff] [blame] | 3040 | dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data, |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3041 | len, DMA_TO_DEVICE); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3042 | BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[0].host_addr); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3043 | txqent->vector[0].length = htons(len); |
| 3044 | dma_unmap_addr_set(&unmap->vectors[0], dma_addr, dma_addr); |
| 3045 | head_unmap->nvecs++; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3046 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3047 | for (i = 0, vect_id = 0; i < vectors - 1; i++) { |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3048 | const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i]; |
Rasesh Mody | 24f5d33 | 2013-12-17 17:07:40 -0800 | [diff] [blame] | 3049 | u32 size = skb_frag_size(frag); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3050 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3051 | if (unlikely(size == 0)) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3052 | /* Undo the changes starting at tcb->producer_index */ |
| 3053 | bnad_tx_buff_unmap(bnad, unmap_q, q_depth, |
| 3054 | tcb->producer_index); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3055 | dev_kfree_skb(skb); |
| 3056 | BNAD_UPDATE_CTR(bnad, tx_skb_frag_zero); |
| 3057 | return NETDEV_TX_OK; |
| 3058 | } |
| 3059 | |
| 3060 | len += size; |
| 3061 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3062 | vect_id++; |
| 3063 | if (vect_id == BFI_TX_MAX_VECTORS_PER_WI) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3064 | vect_id = 0; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3065 | BNA_QE_INDX_INC(prod, q_depth); |
| 3066 | txqent = &((struct bna_txq_entry *)tcb->sw_q)[prod]; |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3067 | txqent->hdr.wi_ext.opcode = |
| 3068 | __constant_htons(BNA_TXQ_WI_EXTENSION); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3069 | unmap = &unmap_q[prod]; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3070 | } |
| 3071 | |
Ian Campbell | 4d5b1a6 | 2011-08-29 23:18:24 +0000 | [diff] [blame] | 3072 | dma_addr = skb_frag_dma_map(&bnad->pcidev->dev, frag, |
| 3073 | 0, size, DMA_TO_DEVICE); |
David S. Miller | ecca6a9 | 2014-01-06 20:37:41 -0500 | [diff] [blame] | 3074 | dma_unmap_len_set(&unmap->vectors[vect_id], dma_len, size); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3075 | BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[vect_id].host_addr); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3076 | txqent->vector[vect_id].length = htons(size); |
| 3077 | dma_unmap_addr_set(&unmap->vectors[vect_id], dma_addr, |
David S. Miller | ecca6a9 | 2014-01-06 20:37:41 -0500 | [diff] [blame] | 3078 | dma_addr); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3079 | head_unmap->nvecs++; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3080 | } |
| 3081 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3082 | if (unlikely(len != skb->len)) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3083 | /* Undo the changes starting at tcb->producer_index */ |
| 3084 | bnad_tx_buff_unmap(bnad, unmap_q, q_depth, tcb->producer_index); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3085 | dev_kfree_skb(skb); |
| 3086 | BNAD_UPDATE_CTR(bnad, tx_skb_len_mismatch); |
| 3087 | return NETDEV_TX_OK; |
| 3088 | } |
| 3089 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3090 | BNA_QE_INDX_INC(prod, q_depth); |
| 3091 | tcb->producer_index = prod; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3092 | |
| 3093 | smp_mb(); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 3094 | |
| 3095 | if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) |
| 3096 | return NETDEV_TX_OK; |
| 3097 | |
Rasesh Mody | fee1253 | 2013-12-17 17:07:31 -0800 | [diff] [blame] | 3098 | skb_tx_timestamp(skb); |
| 3099 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3100 | bna_txq_prod_indx_doorbell(tcb); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3101 | smp_mb(); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3102 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3103 | return NETDEV_TX_OK; |
| 3104 | } |
| 3105 | |
| 3106 | /* |
| 3107 | * Used spin_lock to synchronize reading of stats structures, which |
| 3108 | * is written by BNA under the same lock. |
| 3109 | */ |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 3110 | static struct rtnl_link_stats64 * |
| 3111 | bnad_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3112 | { |
| 3113 | struct bnad *bnad = netdev_priv(netdev); |
| 3114 | unsigned long flags; |
| 3115 | |
| 3116 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3117 | |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 3118 | bnad_netdev_qstats_fill(bnad, stats); |
| 3119 | bnad_netdev_hwstats_fill(bnad, stats); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3120 | |
| 3121 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3122 | |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 3123 | return stats; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3124 | } |
| 3125 | |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3126 | static void |
| 3127 | bnad_set_rx_ucast_fltr(struct bnad *bnad) |
| 3128 | { |
| 3129 | struct net_device *netdev = bnad->netdev; |
| 3130 | int uc_count = netdev_uc_count(netdev); |
| 3131 | enum bna_cb_status ret; |
| 3132 | u8 *mac_list; |
| 3133 | struct netdev_hw_addr *ha; |
| 3134 | int entry; |
| 3135 | |
| 3136 | if (netdev_uc_empty(bnad->netdev)) { |
| 3137 | bna_rx_ucast_listset(bnad->rx_info[0].rx, 0, NULL, NULL); |
| 3138 | return; |
| 3139 | } |
| 3140 | |
| 3141 | if (uc_count > bna_attr(&bnad->bna)->num_ucmac) |
| 3142 | goto mode_default; |
| 3143 | |
| 3144 | mac_list = kzalloc(uc_count * ETH_ALEN, GFP_ATOMIC); |
| 3145 | if (mac_list == NULL) |
| 3146 | goto mode_default; |
| 3147 | |
| 3148 | entry = 0; |
| 3149 | netdev_for_each_uc_addr(ha, netdev) { |
| 3150 | memcpy(&mac_list[entry * ETH_ALEN], |
| 3151 | &ha->addr[0], ETH_ALEN); |
| 3152 | entry++; |
| 3153 | } |
| 3154 | |
| 3155 | ret = bna_rx_ucast_listset(bnad->rx_info[0].rx, entry, |
| 3156 | mac_list, NULL); |
| 3157 | kfree(mac_list); |
| 3158 | |
| 3159 | if (ret != BNA_CB_SUCCESS) |
| 3160 | goto mode_default; |
| 3161 | |
| 3162 | return; |
| 3163 | |
| 3164 | /* ucast packets not in UCAM are routed to default function */ |
| 3165 | mode_default: |
| 3166 | bnad->cfg_flags |= BNAD_CF_DEFAULT; |
| 3167 | bna_rx_ucast_listset(bnad->rx_info[0].rx, 0, NULL, NULL); |
| 3168 | } |
| 3169 | |
| 3170 | static void |
| 3171 | bnad_set_rx_mcast_fltr(struct bnad *bnad) |
| 3172 | { |
| 3173 | struct net_device *netdev = bnad->netdev; |
| 3174 | int mc_count = netdev_mc_count(netdev); |
| 3175 | enum bna_cb_status ret; |
| 3176 | u8 *mac_list; |
| 3177 | |
| 3178 | if (netdev->flags & IFF_ALLMULTI) |
| 3179 | goto mode_allmulti; |
| 3180 | |
| 3181 | if (netdev_mc_empty(netdev)) |
| 3182 | return; |
| 3183 | |
| 3184 | if (mc_count > bna_attr(&bnad->bna)->num_mcmac) |
| 3185 | goto mode_allmulti; |
| 3186 | |
| 3187 | mac_list = kzalloc((mc_count + 1) * ETH_ALEN, GFP_ATOMIC); |
| 3188 | |
| 3189 | if (mac_list == NULL) |
| 3190 | goto mode_allmulti; |
| 3191 | |
| 3192 | memcpy(&mac_list[0], &bnad_bcast_addr[0], ETH_ALEN); |
| 3193 | |
| 3194 | /* copy rest of the MCAST addresses */ |
| 3195 | bnad_netdev_mc_list_get(netdev, mac_list); |
| 3196 | ret = bna_rx_mcast_listset(bnad->rx_info[0].rx, mc_count + 1, |
| 3197 | mac_list, NULL); |
| 3198 | kfree(mac_list); |
| 3199 | |
| 3200 | if (ret != BNA_CB_SUCCESS) |
| 3201 | goto mode_allmulti; |
| 3202 | |
| 3203 | return; |
| 3204 | |
| 3205 | mode_allmulti: |
| 3206 | bnad->cfg_flags |= BNAD_CF_ALLMULTI; |
| 3207 | bna_rx_mcast_delall(bnad->rx_info[0].rx, NULL); |
| 3208 | } |
| 3209 | |
Rasesh Mody | a2122d9 | 2011-08-30 15:27:43 +0000 | [diff] [blame] | 3210 | void |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3211 | bnad_set_rx_mode(struct net_device *netdev) |
| 3212 | { |
| 3213 | struct bnad *bnad = netdev_priv(netdev); |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3214 | enum bna_rxmode new_mode, mode_mask; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3215 | unsigned long flags; |
| 3216 | |
| 3217 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3218 | |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3219 | if (bnad->rx_info[0].rx == NULL) { |
| 3220 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3221 | return; |
| 3222 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3223 | |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3224 | /* clear bnad flags to update it with new settings */ |
| 3225 | bnad->cfg_flags &= ~(BNAD_CF_PROMISC | BNAD_CF_DEFAULT | |
| 3226 | BNAD_CF_ALLMULTI); |
| 3227 | |
| 3228 | new_mode = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3229 | if (netdev->flags & IFF_PROMISC) { |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3230 | new_mode |= BNAD_RXMODE_PROMISC_DEFAULT; |
| 3231 | bnad->cfg_flags |= BNAD_CF_PROMISC; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3232 | } else { |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3233 | bnad_set_rx_mcast_fltr(bnad); |
| 3234 | |
| 3235 | if (bnad->cfg_flags & BNAD_CF_ALLMULTI) |
| 3236 | new_mode |= BNA_RXMODE_ALLMULTI; |
| 3237 | |
| 3238 | bnad_set_rx_ucast_fltr(bnad); |
| 3239 | |
| 3240 | if (bnad->cfg_flags & BNAD_CF_DEFAULT) |
| 3241 | new_mode |= BNA_RXMODE_DEFAULT; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3242 | } |
| 3243 | |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3244 | mode_mask = BNA_RXMODE_PROMISC | BNA_RXMODE_DEFAULT | |
| 3245 | BNA_RXMODE_ALLMULTI; |
| 3246 | bna_rx_mode_set(bnad->rx_info[0].rx, new_mode, mode_mask, NULL); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3247 | |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3248 | if (bnad->cfg_flags & BNAD_CF_PROMISC) |
| 3249 | bna_rx_vlan_strip_disable(bnad->rx_info[0].rx); |
| 3250 | else |
| 3251 | bna_rx_vlan_strip_enable(bnad->rx_info[0].rx); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3252 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3253 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3254 | } |
| 3255 | |
| 3256 | /* |
| 3257 | * bna_lock is used to sync writes to netdev->addr |
| 3258 | * conf_lock cannot be used since this call may be made |
| 3259 | * in a non-blocking context. |
| 3260 | */ |
| 3261 | static int |
| 3262 | bnad_set_mac_address(struct net_device *netdev, void *mac_addr) |
| 3263 | { |
| 3264 | int err; |
| 3265 | struct bnad *bnad = netdev_priv(netdev); |
| 3266 | struct sockaddr *sa = (struct sockaddr *)mac_addr; |
| 3267 | unsigned long flags; |
| 3268 | |
| 3269 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3270 | |
| 3271 | err = bnad_mac_addr_set_locked(bnad, sa->sa_data); |
| 3272 | |
| 3273 | if (!err) |
| 3274 | memcpy(netdev->dev_addr, sa->sa_data, netdev->addr_len); |
| 3275 | |
| 3276 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3277 | |
| 3278 | return err; |
| 3279 | } |
| 3280 | |
| 3281 | static int |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 3282 | bnad_mtu_set(struct bnad *bnad, int frame_size) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3283 | { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3284 | unsigned long flags; |
| 3285 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3286 | init_completion(&bnad->bnad_completions.mtu_comp); |
| 3287 | |
| 3288 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 3289 | bna_enet_mtu_set(&bnad->bna.enet, frame_size, bnad_cb_enet_mtu_set); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3290 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3291 | |
| 3292 | wait_for_completion(&bnad->bnad_completions.mtu_comp); |
| 3293 | |
| 3294 | return bnad->bnad_completions.mtu_comp_status; |
| 3295 | } |
| 3296 | |
| 3297 | static int |
| 3298 | bnad_change_mtu(struct net_device *netdev, int new_mtu) |
| 3299 | { |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 3300 | int err, mtu; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3301 | struct bnad *bnad = netdev_priv(netdev); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 3302 | u32 rx_count = 0, frame, new_frame; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3303 | |
| 3304 | if (new_mtu + ETH_HLEN < ETH_ZLEN || new_mtu > BNAD_JUMBO_MTU) |
| 3305 | return -EINVAL; |
| 3306 | |
| 3307 | mutex_lock(&bnad->conf_mutex); |
| 3308 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 3309 | mtu = netdev->mtu; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3310 | netdev->mtu = new_mtu; |
| 3311 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 3312 | frame = BNAD_FRAME_SIZE(mtu); |
| 3313 | new_frame = BNAD_FRAME_SIZE(new_mtu); |
| 3314 | |
| 3315 | /* check if multi-buffer needs to be enabled */ |
| 3316 | if (BNAD_PCI_DEV_IS_CAT2(bnad) && |
| 3317 | netif_running(bnad->netdev)) { |
| 3318 | /* only when transition is over 4K */ |
| 3319 | if ((frame <= 4096 && new_frame > 4096) || |
| 3320 | (frame > 4096 && new_frame <= 4096)) |
| 3321 | rx_count = bnad_reinit_rx(bnad); |
| 3322 | } |
| 3323 | |
| 3324 | /* rx_count > 0 - new rx created |
| 3325 | * - Linux set err = 0 and return |
| 3326 | */ |
| 3327 | err = bnad_mtu_set(bnad, new_frame); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3328 | if (err) |
| 3329 | err = -EBUSY; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3330 | |
| 3331 | mutex_unlock(&bnad->conf_mutex); |
| 3332 | return err; |
| 3333 | } |
| 3334 | |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 3335 | static int |
Patrick McHardy | 80d5c36 | 2013-04-19 02:04:28 +0000 | [diff] [blame] | 3336 | bnad_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3337 | { |
| 3338 | struct bnad *bnad = netdev_priv(netdev); |
| 3339 | unsigned long flags; |
| 3340 | |
| 3341 | if (!bnad->rx_info[0].rx) |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 3342 | return 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3343 | |
| 3344 | mutex_lock(&bnad->conf_mutex); |
| 3345 | |
| 3346 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3347 | bna_rx_vlan_add(bnad->rx_info[0].rx, vid); |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 3348 | set_bit(vid, bnad->active_vlans); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3349 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3350 | |
| 3351 | mutex_unlock(&bnad->conf_mutex); |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 3352 | |
| 3353 | return 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3354 | } |
| 3355 | |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 3356 | static int |
Patrick McHardy | 80d5c36 | 2013-04-19 02:04:28 +0000 | [diff] [blame] | 3357 | bnad_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3358 | { |
| 3359 | struct bnad *bnad = netdev_priv(netdev); |
| 3360 | unsigned long flags; |
| 3361 | |
| 3362 | if (!bnad->rx_info[0].rx) |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 3363 | return 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3364 | |
| 3365 | mutex_lock(&bnad->conf_mutex); |
| 3366 | |
| 3367 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 3368 | clear_bit(vid, bnad->active_vlans); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3369 | bna_rx_vlan_del(bnad->rx_info[0].rx, vid); |
| 3370 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3371 | |
| 3372 | mutex_unlock(&bnad->conf_mutex); |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 3373 | |
| 3374 | return 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3375 | } |
| 3376 | |
| 3377 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 3378 | static void |
| 3379 | bnad_netpoll(struct net_device *netdev) |
| 3380 | { |
| 3381 | struct bnad *bnad = netdev_priv(netdev); |
| 3382 | struct bnad_rx_info *rx_info; |
| 3383 | struct bnad_rx_ctrl *rx_ctrl; |
| 3384 | u32 curr_mask; |
| 3385 | int i, j; |
| 3386 | |
| 3387 | if (!(bnad->cfg_flags & BNAD_CF_MSIX)) { |
| 3388 | bna_intx_disable(&bnad->bna, curr_mask); |
| 3389 | bnad_isr(bnad->pcidev->irq, netdev); |
| 3390 | bna_intx_enable(&bnad->bna, curr_mask); |
| 3391 | } else { |
Rasesh Mody | 19dbff9 | 2011-08-30 15:27:41 +0000 | [diff] [blame] | 3392 | /* |
| 3393 | * Tx processing may happen in sending context, so no need |
| 3394 | * to explicitly process completions here |
| 3395 | */ |
| 3396 | |
| 3397 | /* Rx processing */ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3398 | for (i = 0; i < bnad->num_rx; i++) { |
| 3399 | rx_info = &bnad->rx_info[i]; |
| 3400 | if (!rx_info->rx) |
| 3401 | continue; |
| 3402 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { |
| 3403 | rx_ctrl = &rx_info->rx_ctrl[j]; |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3404 | if (rx_ctrl->ccb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3405 | bnad_netif_rx_schedule_poll(bnad, |
| 3406 | rx_ctrl->ccb); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3407 | } |
| 3408 | } |
| 3409 | } |
| 3410 | } |
| 3411 | #endif |
| 3412 | |
| 3413 | static const struct net_device_ops bnad_netdev_ops = { |
| 3414 | .ndo_open = bnad_open, |
| 3415 | .ndo_stop = bnad_stop, |
| 3416 | .ndo_start_xmit = bnad_start_xmit, |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 3417 | .ndo_get_stats64 = bnad_get_stats64, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3418 | .ndo_set_rx_mode = bnad_set_rx_mode, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3419 | .ndo_validate_addr = eth_validate_addr, |
| 3420 | .ndo_set_mac_address = bnad_set_mac_address, |
| 3421 | .ndo_change_mtu = bnad_change_mtu, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3422 | .ndo_vlan_rx_add_vid = bnad_vlan_rx_add_vid, |
| 3423 | .ndo_vlan_rx_kill_vid = bnad_vlan_rx_kill_vid, |
| 3424 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 3425 | .ndo_poll_controller = bnad_netpoll |
| 3426 | #endif |
| 3427 | }; |
| 3428 | |
| 3429 | static void |
| 3430 | bnad_netdev_init(struct bnad *bnad, bool using_dac) |
| 3431 | { |
| 3432 | struct net_device *netdev = bnad->netdev; |
| 3433 | |
Michał Mirosław | e5ee20e | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 3434 | netdev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM | |
| 3435 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
Patrick McHardy | f646968 | 2013-04-19 02:04:27 +0000 | [diff] [blame] | 3436 | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_HW_VLAN_CTAG_TX; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3437 | |
Michał Mirosław | e5ee20e | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 3438 | netdev->vlan_features = NETIF_F_SG | NETIF_F_HIGHDMA | |
| 3439 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
| 3440 | NETIF_F_TSO | NETIF_F_TSO6; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3441 | |
Michał Mirosław | e5ee20e | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 3442 | netdev->features |= netdev->hw_features | |
Patrick McHardy | f646968 | 2013-04-19 02:04:27 +0000 | [diff] [blame] | 3443 | NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3444 | |
| 3445 | if (using_dac) |
| 3446 | netdev->features |= NETIF_F_HIGHDMA; |
| 3447 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3448 | netdev->mem_start = bnad->mmio_start; |
| 3449 | netdev->mem_end = bnad->mmio_start + bnad->mmio_len - 1; |
| 3450 | |
| 3451 | netdev->netdev_ops = &bnad_netdev_ops; |
| 3452 | bnad_set_ethtool_ops(netdev); |
| 3453 | } |
| 3454 | |
| 3455 | /* |
| 3456 | * 1. Initialize the bnad structure |
| 3457 | * 2. Setup netdev pointer in pci_dev |
Jing Huang | d95d108 | 2012-04-04 05:43:48 +0000 | [diff] [blame] | 3458 | * 3. Initialize no. of TxQ & CQs & MSIX vectors |
| 3459 | * 4. Initialize work queue. |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3460 | */ |
| 3461 | static int |
| 3462 | bnad_init(struct bnad *bnad, |
| 3463 | struct pci_dev *pdev, struct net_device *netdev) |
| 3464 | { |
| 3465 | unsigned long flags; |
| 3466 | |
| 3467 | SET_NETDEV_DEV(netdev, &pdev->dev); |
| 3468 | pci_set_drvdata(pdev, netdev); |
| 3469 | |
| 3470 | bnad->netdev = netdev; |
| 3471 | bnad->pcidev = pdev; |
| 3472 | bnad->mmio_start = pci_resource_start(pdev, 0); |
| 3473 | bnad->mmio_len = pci_resource_len(pdev, 0); |
| 3474 | bnad->bar0 = ioremap_nocache(bnad->mmio_start, bnad->mmio_len); |
| 3475 | if (!bnad->bar0) { |
| 3476 | dev_err(&pdev->dev, "ioremap for bar0 failed\n"); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3477 | return -ENOMEM; |
| 3478 | } |
| 3479 | pr_info("bar0 mapped to %p, len %llu\n", bnad->bar0, |
| 3480 | (unsigned long long) bnad->mmio_len); |
| 3481 | |
| 3482 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3483 | if (!bnad_msix_disable) |
| 3484 | bnad->cfg_flags = BNAD_CF_MSIX; |
| 3485 | |
| 3486 | bnad->cfg_flags |= BNAD_CF_DIM_ENABLED; |
| 3487 | |
| 3488 | bnad_q_num_init(bnad); |
| 3489 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3490 | |
| 3491 | bnad->msix_num = (bnad->num_tx * bnad->num_txq_per_tx) + |
| 3492 | (bnad->num_rx * bnad->num_rxp_per_rx) + |
| 3493 | BNAD_MAILBOX_MSIX_VECTORS; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3494 | |
| 3495 | bnad->txq_depth = BNAD_TXQ_DEPTH; |
| 3496 | bnad->rxq_depth = BNAD_RXQ_DEPTH; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3497 | |
| 3498 | bnad->tx_coalescing_timeo = BFI_TX_COALESCING_TIMEO; |
| 3499 | bnad->rx_coalescing_timeo = BFI_RX_COALESCING_TIMEO; |
| 3500 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 3501 | sprintf(bnad->wq_name, "%s_wq_%d", BNAD_NAME, bnad->id); |
| 3502 | bnad->work_q = create_singlethread_workqueue(bnad->wq_name); |
Wei Yongjun | ba21fc6 | 2013-05-13 04:26:06 +0000 | [diff] [blame] | 3503 | if (!bnad->work_q) { |
| 3504 | iounmap(bnad->bar0); |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 3505 | return -ENOMEM; |
Wei Yongjun | ba21fc6 | 2013-05-13 04:26:06 +0000 | [diff] [blame] | 3506 | } |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 3507 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3508 | return 0; |
| 3509 | } |
| 3510 | |
| 3511 | /* |
| 3512 | * Must be called after bnad_pci_uninit() |
| 3513 | * so that iounmap() and pci_set_drvdata(NULL) |
| 3514 | * happens only after PCI uninitialization. |
| 3515 | */ |
| 3516 | static void |
| 3517 | bnad_uninit(struct bnad *bnad) |
| 3518 | { |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 3519 | if (bnad->work_q) { |
| 3520 | flush_workqueue(bnad->work_q); |
| 3521 | destroy_workqueue(bnad->work_q); |
| 3522 | bnad->work_q = NULL; |
| 3523 | } |
| 3524 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3525 | if (bnad->bar0) |
| 3526 | iounmap(bnad->bar0); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3527 | } |
| 3528 | |
| 3529 | /* |
| 3530 | * Initialize locks |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3531 | a) Per ioceth mutes used for serializing configuration |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3532 | changes from OS interface |
| 3533 | b) spin lock used to protect bna state machine |
| 3534 | */ |
| 3535 | static void |
| 3536 | bnad_lock_init(struct bnad *bnad) |
| 3537 | { |
| 3538 | spin_lock_init(&bnad->bna_lock); |
| 3539 | mutex_init(&bnad->conf_mutex); |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 3540 | mutex_init(&bnad_list_mutex); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3541 | } |
| 3542 | |
| 3543 | static void |
| 3544 | bnad_lock_uninit(struct bnad *bnad) |
| 3545 | { |
| 3546 | mutex_destroy(&bnad->conf_mutex); |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 3547 | mutex_destroy(&bnad_list_mutex); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3548 | } |
| 3549 | |
| 3550 | /* PCI Initialization */ |
| 3551 | static int |
| 3552 | bnad_pci_init(struct bnad *bnad, |
| 3553 | struct pci_dev *pdev, bool *using_dac) |
| 3554 | { |
| 3555 | int err; |
| 3556 | |
| 3557 | err = pci_enable_device(pdev); |
| 3558 | if (err) |
| 3559 | return err; |
| 3560 | err = pci_request_regions(pdev, BNAD_NAME); |
| 3561 | if (err) |
| 3562 | goto disable_device; |
Russell King | 3e54807 | 2013-06-10 12:16:54 +0100 | [diff] [blame] | 3563 | if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) { |
Rusty Russell | 3db1cd5 | 2011-12-19 13:56:45 +0000 | [diff] [blame] | 3564 | *using_dac = true; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3565 | } else { |
Russell King | 3e54807 | 2013-06-10 12:16:54 +0100 | [diff] [blame] | 3566 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
| 3567 | if (err) |
| 3568 | goto release_regions; |
Rusty Russell | 3db1cd5 | 2011-12-19 13:56:45 +0000 | [diff] [blame] | 3569 | *using_dac = false; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3570 | } |
| 3571 | pci_set_master(pdev); |
| 3572 | return 0; |
| 3573 | |
| 3574 | release_regions: |
| 3575 | pci_release_regions(pdev); |
| 3576 | disable_device: |
| 3577 | pci_disable_device(pdev); |
| 3578 | |
| 3579 | return err; |
| 3580 | } |
| 3581 | |
| 3582 | static void |
| 3583 | bnad_pci_uninit(struct pci_dev *pdev) |
| 3584 | { |
| 3585 | pci_release_regions(pdev); |
| 3586 | pci_disable_device(pdev); |
| 3587 | } |
| 3588 | |
Bill Pemberton | c4eef18 | 2012-12-03 09:23:00 -0500 | [diff] [blame] | 3589 | static int |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3590 | bnad_pci_probe(struct pci_dev *pdev, |
| 3591 | const struct pci_device_id *pcidev_id) |
| 3592 | { |
Rasesh Mody | 3caa1e95 | 2011-08-30 15:27:42 +0000 | [diff] [blame] | 3593 | bool using_dac; |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 3594 | int err; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3595 | struct bnad *bnad; |
| 3596 | struct bna *bna; |
| 3597 | struct net_device *netdev; |
| 3598 | struct bfa_pcidev pcidev_info; |
| 3599 | unsigned long flags; |
| 3600 | |
| 3601 | pr_info("bnad_pci_probe : (0x%p, 0x%p) PCI Func : (%d)\n", |
| 3602 | pdev, pcidev_id, PCI_FUNC(pdev->devfn)); |
| 3603 | |
| 3604 | mutex_lock(&bnad_fwimg_mutex); |
| 3605 | if (!cna_get_firmware_buf(pdev)) { |
| 3606 | mutex_unlock(&bnad_fwimg_mutex); |
| 3607 | pr_warn("Failed to load Firmware Image!\n"); |
| 3608 | return -ENODEV; |
| 3609 | } |
| 3610 | mutex_unlock(&bnad_fwimg_mutex); |
| 3611 | |
| 3612 | /* |
| 3613 | * Allocates sizeof(struct net_device + struct bnad) |
| 3614 | * bnad = netdev->priv |
| 3615 | */ |
| 3616 | netdev = alloc_etherdev(sizeof(struct bnad)); |
| 3617 | if (!netdev) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3618 | err = -ENOMEM; |
| 3619 | return err; |
| 3620 | } |
| 3621 | bnad = netdev_priv(netdev); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3622 | bnad_lock_init(bnad); |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 3623 | bnad_add_to_list(bnad); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3624 | |
| 3625 | mutex_lock(&bnad->conf_mutex); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3626 | /* |
| 3627 | * PCI initialization |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 3628 | * Output : using_dac = 1 for 64 bit DMA |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 3629 | * = 0 for 32 bit DMA |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3630 | */ |
David S. Miller | e905ed5 | 2012-09-27 18:31:58 -0400 | [diff] [blame] | 3631 | using_dac = false; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3632 | err = bnad_pci_init(bnad, pdev, &using_dac); |
| 3633 | if (err) |
Dan Carpenter | 44861f4 | 2011-08-24 01:29:22 +0000 | [diff] [blame] | 3634 | goto unlock_mutex; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3635 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3636 | /* |
| 3637 | * Initialize bnad structure |
| 3638 | * Setup relation between pci_dev & netdev |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3639 | */ |
| 3640 | err = bnad_init(bnad, pdev, netdev); |
| 3641 | if (err) |
| 3642 | goto pci_uninit; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3643 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3644 | /* Initialize netdev structure, set up ethtool ops */ |
| 3645 | bnad_netdev_init(bnad, using_dac); |
| 3646 | |
Rasesh Mody | 815f41e | 2010-12-23 21:45:03 +0000 | [diff] [blame] | 3647 | /* Set link to down state */ |
| 3648 | netif_carrier_off(netdev); |
| 3649 | |
Krishna Gudipati | 7afc5db | 2011-12-22 13:30:19 +0000 | [diff] [blame] | 3650 | /* Setup the debugfs node for this bfad */ |
| 3651 | if (bna_debugfs_enable) |
| 3652 | bnad_debugfs_init(bnad); |
| 3653 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3654 | /* Get resource requirement form bna */ |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3655 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3656 | bna_res_req(&bnad->res_info[0]); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3657 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3658 | |
| 3659 | /* Allocate resources from bna */ |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3660 | err = bnad_res_alloc(bnad, &bnad->res_info[0], BNA_RES_T_MAX); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3661 | if (err) |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3662 | goto drv_uninit; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3663 | |
| 3664 | bna = &bnad->bna; |
| 3665 | |
| 3666 | /* Setup pcidev_info for bna_init() */ |
| 3667 | pcidev_info.pci_slot = PCI_SLOT(bnad->pcidev->devfn); |
| 3668 | pcidev_info.pci_func = PCI_FUNC(bnad->pcidev->devfn); |
| 3669 | pcidev_info.device_id = bnad->pcidev->device; |
| 3670 | pcidev_info.pci_bar_kva = bnad->bar0; |
| 3671 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3672 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3673 | bna_init(bna, bnad, &pcidev_info, &bnad->res_info[0]); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3674 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3675 | |
| 3676 | bnad->stats.bna_stats = &bna->stats; |
| 3677 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3678 | bnad_enable_msix(bnad); |
| 3679 | err = bnad_mbox_irq_alloc(bnad); |
| 3680 | if (err) |
| 3681 | goto res_free; |
| 3682 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3683 | /* Set up timers */ |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3684 | setup_timer(&bnad->bna.ioceth.ioc.ioc_timer, bnad_ioc_timeout, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3685 | ((unsigned long)bnad)); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3686 | setup_timer(&bnad->bna.ioceth.ioc.hb_timer, bnad_ioc_hb_check, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3687 | ((unsigned long)bnad)); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3688 | setup_timer(&bnad->bna.ioceth.ioc.iocpf_timer, bnad_iocpf_timeout, |
Rasesh Mody | 1d32f76 | 2010-12-23 21:45:09 +0000 | [diff] [blame] | 3689 | ((unsigned long)bnad)); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3690 | setup_timer(&bnad->bna.ioceth.ioc.sem_timer, bnad_iocpf_sem_timeout, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3691 | ((unsigned long)bnad)); |
| 3692 | |
| 3693 | /* Now start the timer before calling IOC */ |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3694 | mod_timer(&bnad->bna.ioceth.ioc.iocpf_timer, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3695 | jiffies + msecs_to_jiffies(BNA_IOC_TIMER_FREQ)); |
| 3696 | |
| 3697 | /* |
| 3698 | * Start the chip |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3699 | * If the call back comes with error, we bail out. |
| 3700 | * This is a catastrophic error. |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3701 | */ |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3702 | err = bnad_ioceth_enable(bnad); |
| 3703 | if (err) { |
| 3704 | pr_err("BNA: Initialization failed err=%d\n", |
| 3705 | err); |
| 3706 | goto probe_success; |
| 3707 | } |
| 3708 | |
| 3709 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3710 | if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) || |
| 3711 | bna_num_rxp_set(bna, BNAD_NUM_RXP + 1)) { |
| 3712 | bnad_q_num_adjust(bnad, bna_attr(bna)->num_txq - 1, |
| 3713 | bna_attr(bna)->num_rxp - 1); |
| 3714 | if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) || |
| 3715 | bna_num_rxp_set(bna, BNAD_NUM_RXP + 1)) |
| 3716 | err = -EIO; |
| 3717 | } |
Rasesh Mody | 3caa1e95 | 2011-08-30 15:27:42 +0000 | [diff] [blame] | 3718 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3719 | if (err) |
| 3720 | goto disable_ioceth; |
| 3721 | |
| 3722 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3723 | bna_mod_res_req(&bnad->bna, &bnad->mod_res_info[0]); |
| 3724 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3725 | |
| 3726 | err = bnad_res_alloc(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX); |
Rasesh Mody | 0caa9aa | 2011-08-30 15:27:38 +0000 | [diff] [blame] | 3727 | if (err) { |
| 3728 | err = -EIO; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3729 | goto disable_ioceth; |
Rasesh Mody | 0caa9aa | 2011-08-30 15:27:38 +0000 | [diff] [blame] | 3730 | } |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3731 | |
| 3732 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3733 | bna_mod_init(&bnad->bna, &bnad->mod_res_info[0]); |
| 3734 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3735 | |
| 3736 | /* Get the burnt-in mac */ |
| 3737 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3738 | bna_enet_perm_mac_get(&bna->enet, &bnad->perm_addr); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3739 | bnad_set_netdev_perm_addr(bnad); |
| 3740 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3741 | |
Rasesh Mody | 0caa9aa | 2011-08-30 15:27:38 +0000 | [diff] [blame] | 3742 | mutex_unlock(&bnad->conf_mutex); |
| 3743 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3744 | /* Finally, reguister with net_device layer */ |
| 3745 | err = register_netdev(netdev); |
| 3746 | if (err) { |
| 3747 | pr_err("BNA : Registering with netdev failed\n"); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3748 | goto probe_uninit; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3749 | } |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3750 | set_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3751 | |
Rasesh Mody | 0caa9aa | 2011-08-30 15:27:38 +0000 | [diff] [blame] | 3752 | return 0; |
| 3753 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3754 | probe_success: |
| 3755 | mutex_unlock(&bnad->conf_mutex); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3756 | return 0; |
| 3757 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3758 | probe_uninit: |
Rasesh Mody | 3fc7237 | 2011-09-21 20:55:41 -0400 | [diff] [blame] | 3759 | mutex_lock(&bnad->conf_mutex); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3760 | bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX); |
| 3761 | disable_ioceth: |
| 3762 | bnad_ioceth_disable(bnad); |
| 3763 | del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer); |
| 3764 | del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer); |
| 3765 | del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3766 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3767 | bna_uninit(bna); |
| 3768 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3769 | bnad_mbox_irq_free(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3770 | bnad_disable_msix(bnad); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3771 | res_free: |
| 3772 | bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX); |
| 3773 | drv_uninit: |
Krishna Gudipati | 7afc5db | 2011-12-22 13:30:19 +0000 | [diff] [blame] | 3774 | /* Remove the debugfs node for this bnad */ |
| 3775 | kfree(bnad->regdata); |
| 3776 | bnad_debugfs_uninit(bnad); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3777 | bnad_uninit(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3778 | pci_uninit: |
| 3779 | bnad_pci_uninit(pdev); |
Dan Carpenter | 44861f4 | 2011-08-24 01:29:22 +0000 | [diff] [blame] | 3780 | unlock_mutex: |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3781 | mutex_unlock(&bnad->conf_mutex); |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 3782 | bnad_remove_from_list(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3783 | bnad_lock_uninit(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3784 | free_netdev(netdev); |
| 3785 | return err; |
| 3786 | } |
| 3787 | |
Bill Pemberton | c4eef18 | 2012-12-03 09:23:00 -0500 | [diff] [blame] | 3788 | static void |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3789 | bnad_pci_remove(struct pci_dev *pdev) |
| 3790 | { |
| 3791 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 3792 | struct bnad *bnad; |
| 3793 | struct bna *bna; |
| 3794 | unsigned long flags; |
| 3795 | |
| 3796 | if (!netdev) |
| 3797 | return; |
| 3798 | |
| 3799 | pr_info("%s bnad_pci_remove\n", netdev->name); |
| 3800 | bnad = netdev_priv(netdev); |
| 3801 | bna = &bnad->bna; |
| 3802 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3803 | if (test_and_clear_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags)) |
| 3804 | unregister_netdev(netdev); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3805 | |
| 3806 | mutex_lock(&bnad->conf_mutex); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3807 | bnad_ioceth_disable(bnad); |
| 3808 | del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer); |
| 3809 | del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer); |
| 3810 | del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3811 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3812 | bna_uninit(bna); |
| 3813 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3814 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3815 | bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX); |
| 3816 | bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX); |
| 3817 | bnad_mbox_irq_free(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3818 | bnad_disable_msix(bnad); |
| 3819 | bnad_pci_uninit(pdev); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3820 | mutex_unlock(&bnad->conf_mutex); |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 3821 | bnad_remove_from_list(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3822 | bnad_lock_uninit(bnad); |
Krishna Gudipati | 7afc5db | 2011-12-22 13:30:19 +0000 | [diff] [blame] | 3823 | /* Remove the debugfs node for this bnad */ |
| 3824 | kfree(bnad->regdata); |
| 3825 | bnad_debugfs_uninit(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3826 | bnad_uninit(bnad); |
| 3827 | free_netdev(netdev); |
| 3828 | } |
| 3829 | |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 3830 | static DEFINE_PCI_DEVICE_TABLE(bnad_pci_id_table) = { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3831 | { |
| 3832 | PCI_DEVICE(PCI_VENDOR_ID_BROCADE, |
| 3833 | PCI_DEVICE_ID_BROCADE_CT), |
| 3834 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, |
| 3835 | .class_mask = 0xffff00 |
Rasesh Mody | 586b281 | 2011-09-27 10:39:08 +0000 | [diff] [blame] | 3836 | }, |
| 3837 | { |
| 3838 | PCI_DEVICE(PCI_VENDOR_ID_BROCADE, |
| 3839 | BFA_PCI_DEVICE_ID_CT2), |
| 3840 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, |
| 3841 | .class_mask = 0xffff00 |
| 3842 | }, |
| 3843 | {0, }, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3844 | }; |
| 3845 | |
| 3846 | MODULE_DEVICE_TABLE(pci, bnad_pci_id_table); |
| 3847 | |
| 3848 | static struct pci_driver bnad_pci_driver = { |
| 3849 | .name = BNAD_NAME, |
| 3850 | .id_table = bnad_pci_id_table, |
| 3851 | .probe = bnad_pci_probe, |
Bill Pemberton | c4eef18 | 2012-12-03 09:23:00 -0500 | [diff] [blame] | 3852 | .remove = bnad_pci_remove, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3853 | }; |
| 3854 | |
| 3855 | static int __init |
| 3856 | bnad_module_init(void) |
| 3857 | { |
| 3858 | int err; |
| 3859 | |
Rasesh Mody | 5aad001 | 2011-07-22 08:07:40 +0000 | [diff] [blame] | 3860 | pr_info("Brocade 10G Ethernet driver - version: %s\n", |
| 3861 | BNAD_VERSION); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3862 | |
Rasesh Mody | 8a89142 | 2010-08-25 23:00:27 -0700 | [diff] [blame] | 3863 | bfa_nw_ioc_auto_recover(bnad_ioc_auto_recover); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3864 | |
| 3865 | err = pci_register_driver(&bnad_pci_driver); |
| 3866 | if (err < 0) { |
| 3867 | pr_err("bna : PCI registration failed in module init " |
| 3868 | "(%d)\n", err); |
| 3869 | return err; |
| 3870 | } |
| 3871 | |
| 3872 | return 0; |
| 3873 | } |
| 3874 | |
| 3875 | static void __exit |
| 3876 | bnad_module_exit(void) |
| 3877 | { |
| 3878 | pci_unregister_driver(&bnad_pci_driver); |
Jesper Juhl | 294ca86 | 2012-04-09 22:50:24 +0200 | [diff] [blame] | 3879 | release_firmware(bfi_fw); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3880 | } |
| 3881 | |
| 3882 | module_init(bnad_module_init); |
| 3883 | module_exit(bnad_module_exit); |
| 3884 | |
| 3885 | MODULE_AUTHOR("Brocade"); |
| 3886 | MODULE_LICENSE("GPL"); |
| 3887 | MODULE_DESCRIPTION("Brocade 10G PCIe Ethernet driver"); |
| 3888 | MODULE_VERSION(BNAD_VERSION); |
| 3889 | MODULE_FIRMWARE(CNA_FW_FILE_CT); |
Rasesh Mody | 1bf9fd70 | 2011-09-27 10:39:07 +0000 | [diff] [blame] | 3890 | MODULE_FIRMWARE(CNA_FW_FILE_CT2); |