Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1 | /* |
Rasesh Mody | 2732ba5 | 2015-02-19 16:02:31 -0500 | [diff] [blame] | 2 | * Linux network driver for QLogic BR-series Converged Network Adapter. |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 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 | /* |
Rasesh Mody | 2732ba5 | 2015-02-19 16:02:31 -0500 | [diff] [blame] | 14 | * Copyright (c) 2005-2014 Brocade Communications Systems, Inc. |
| 15 | * Copyright (c) 2014-2015 QLogic Corporation |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 16 | * All rights reserved |
Rasesh Mody | 2732ba5 | 2015-02-19 16:02:31 -0500 | [diff] [blame] | 17 | * www.qlogic.com |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 18 | */ |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 19 | #include <linux/bitops.h> |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 20 | #include <linux/netdevice.h> |
| 21 | #include <linux/skbuff.h> |
| 22 | #include <linux/etherdevice.h> |
| 23 | #include <linux/in.h> |
| 24 | #include <linux/ethtool.h> |
| 25 | #include <linux/if_vlan.h> |
| 26 | #include <linux/if_ether.h> |
| 27 | #include <linux/ip.h> |
Paul Gortmaker | 70c7160 | 2011-05-22 16:47:17 -0400 | [diff] [blame] | 28 | #include <linux/prefetch.h> |
Paul Gortmaker | 9d9779e | 2011-07-03 15:21:01 -0400 | [diff] [blame] | 29 | #include <linux/module.h> |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 30 | |
| 31 | #include "bnad.h" |
| 32 | #include "bna.h" |
| 33 | #include "cna.h" |
| 34 | |
Rasesh Mody | b7ee31c5 | 2010-10-05 15:46:05 +0000 | [diff] [blame] | 35 | static DEFINE_MUTEX(bnad_fwimg_mutex); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 36 | |
| 37 | /* |
| 38 | * Module params |
| 39 | */ |
| 40 | static uint bnad_msix_disable; |
| 41 | module_param(bnad_msix_disable, uint, 0444); |
| 42 | MODULE_PARM_DESC(bnad_msix_disable, "Disable MSIX mode"); |
| 43 | |
| 44 | static uint bnad_ioc_auto_recover = 1; |
| 45 | module_param(bnad_ioc_auto_recover, uint, 0444); |
| 46 | MODULE_PARM_DESC(bnad_ioc_auto_recover, "Enable / Disable auto recovery"); |
| 47 | |
Krishna Gudipati | 7afc5db | 2011-12-22 13:30:19 +0000 | [diff] [blame] | 48 | static uint bna_debugfs_enable = 1; |
| 49 | module_param(bna_debugfs_enable, uint, S_IRUGO | S_IWUSR); |
| 50 | MODULE_PARM_DESC(bna_debugfs_enable, "Enables debugfs feature, default=1," |
| 51 | " Range[false:0|true:1]"); |
| 52 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 53 | /* |
| 54 | * Global variables |
| 55 | */ |
stephen hemminger | 482da0f | 2013-12-13 16:40:10 -0800 | [diff] [blame] | 56 | static u32 bnad_rxqs_per_cq = 2; |
stephen hemminger | e1e0918 | 2012-01-04 13:02:24 +0000 | [diff] [blame] | 57 | static u32 bna_id; |
| 58 | static struct mutex bnad_list_mutex; |
| 59 | static LIST_HEAD(bnad_list); |
Ivan Vecera | e2f9ecf | 2015-06-11 15:52:13 +0200 | [diff] [blame] | 60 | static const u8 bnad_bcast_addr[] __aligned(2) = |
| 61 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 62 | |
| 63 | /* |
| 64 | * Local MACROS |
| 65 | */ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 66 | #define BNAD_GET_MBOX_IRQ(_bnad) \ |
| 67 | (((_bnad)->cfg_flags & BNAD_CF_MSIX) ? \ |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 68 | ((_bnad)->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector) : \ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 69 | ((_bnad)->pcidev->irq)) |
| 70 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 71 | #define BNAD_FILL_UNMAPQ_MEM_REQ(_res_info, _num, _size) \ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 72 | do { \ |
| 73 | (_res_info)->res_type = BNA_RES_T_MEM; \ |
| 74 | (_res_info)->res_u.mem_info.mem_type = BNA_MEM_T_KVA; \ |
| 75 | (_res_info)->res_u.mem_info.num = (_num); \ |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 76 | (_res_info)->res_u.mem_info.len = (_size); \ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 77 | } while (0) |
| 78 | |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 79 | static void |
| 80 | bnad_add_to_list(struct bnad *bnad) |
| 81 | { |
| 82 | mutex_lock(&bnad_list_mutex); |
| 83 | list_add_tail(&bnad->list_entry, &bnad_list); |
| 84 | bnad->id = bna_id++; |
| 85 | mutex_unlock(&bnad_list_mutex); |
| 86 | } |
| 87 | |
| 88 | static void |
| 89 | bnad_remove_from_list(struct bnad *bnad) |
| 90 | { |
| 91 | mutex_lock(&bnad_list_mutex); |
| 92 | list_del(&bnad->list_entry); |
| 93 | mutex_unlock(&bnad_list_mutex); |
| 94 | } |
| 95 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 96 | /* |
| 97 | * Reinitialize completions in CQ, once Rx is taken down |
| 98 | */ |
| 99 | static void |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 100 | bnad_cq_cleanup(struct bnad *bnad, struct bna_ccb *ccb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 101 | { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 102 | struct bna_cq_entry *cmpl; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 103 | int i; |
| 104 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 105 | for (i = 0; i < ccb->q_depth; i++) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 106 | cmpl = &((struct bna_cq_entry *)ccb->sw_q)[i]; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 107 | cmpl->valid = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 108 | } |
| 109 | } |
| 110 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 111 | /* Tx Datapath functions */ |
| 112 | |
| 113 | |
| 114 | /* Caller should ensure that the entry at unmap_q[index] is valid */ |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 115 | static u32 |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 116 | bnad_tx_buff_unmap(struct bnad *bnad, |
| 117 | struct bnad_tx_unmap *unmap_q, |
| 118 | u32 q_depth, u32 index) |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 119 | { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 120 | struct bnad_tx_unmap *unmap; |
| 121 | struct sk_buff *skb; |
| 122 | int vector, nvecs; |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 123 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 124 | unmap = &unmap_q[index]; |
| 125 | nvecs = unmap->nvecs; |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 126 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 127 | skb = unmap->skb; |
| 128 | unmap->skb = NULL; |
| 129 | unmap->nvecs = 0; |
| 130 | dma_unmap_single(&bnad->pcidev->dev, |
| 131 | dma_unmap_addr(&unmap->vectors[0], dma_addr), |
| 132 | skb_headlen(skb), DMA_TO_DEVICE); |
| 133 | dma_unmap_addr_set(&unmap->vectors[0], dma_addr, 0); |
| 134 | nvecs--; |
| 135 | |
| 136 | vector = 0; |
| 137 | while (nvecs) { |
| 138 | vector++; |
| 139 | if (vector == BFI_TX_MAX_VECTORS_PER_WI) { |
| 140 | vector = 0; |
| 141 | BNA_QE_INDX_INC(index, q_depth); |
| 142 | unmap = &unmap_q[index]; |
| 143 | } |
| 144 | |
| 145 | dma_unmap_page(&bnad->pcidev->dev, |
| 146 | dma_unmap_addr(&unmap->vectors[vector], dma_addr), |
Rasesh Mody | 24f5d33 | 2013-12-17 17:07:40 -0800 | [diff] [blame] | 147 | dma_unmap_len(&unmap->vectors[vector], dma_len), |
| 148 | DMA_TO_DEVICE); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 149 | dma_unmap_addr_set(&unmap->vectors[vector], dma_addr, 0); |
| 150 | nvecs--; |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 151 | } |
| 152 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 153 | BNA_QE_INDX_INC(index, q_depth); |
| 154 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 155 | return index; |
| 156 | } |
| 157 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 158 | /* |
| 159 | * Frees all pending Tx Bufs |
| 160 | * At this point no activity is expected on the Q, |
| 161 | * so DMA unmap & freeing is fine. |
| 162 | */ |
| 163 | static void |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 164 | bnad_txq_cleanup(struct bnad *bnad, struct bna_tcb *tcb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 165 | { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 166 | struct bnad_tx_unmap *unmap_q = tcb->unmap_q; |
| 167 | struct sk_buff *skb; |
| 168 | int i; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 169 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 170 | for (i = 0; i < tcb->q_depth; i++) { |
| 171 | skb = unmap_q[i].skb; |
Rasesh Mody | 938fa48 | 2011-08-30 15:27:47 +0000 | [diff] [blame] | 172 | if (!skb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 173 | continue; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 174 | bnad_tx_buff_unmap(bnad, unmap_q, tcb->q_depth, i); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 175 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 176 | dev_kfree_skb_any(skb); |
| 177 | } |
| 178 | } |
| 179 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 180 | /* |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 181 | * bnad_txcmpl_process : Frees the Tx bufs on Tx completion |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 182 | * Can be called in a) Interrupt context |
| 183 | * b) Sending context |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 184 | */ |
| 185 | static u32 |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 186 | bnad_txcmpl_process(struct bnad *bnad, struct bna_tcb *tcb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 187 | { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 188 | u32 sent_packets = 0, sent_bytes = 0; |
| 189 | u32 wis, unmap_wis, hw_cons, cons, q_depth; |
| 190 | struct bnad_tx_unmap *unmap_q = tcb->unmap_q; |
| 191 | struct bnad_tx_unmap *unmap; |
| 192 | struct sk_buff *skb; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 193 | |
Jing Huang | d95d108 | 2012-04-04 05:43:48 +0000 | [diff] [blame] | 194 | /* Just return if TX is stopped */ |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 195 | if (!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 196 | return 0; |
| 197 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 198 | hw_cons = *(tcb->hw_consumer_index); |
| 199 | cons = tcb->consumer_index; |
| 200 | q_depth = tcb->q_depth; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 201 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 202 | wis = BNA_Q_INDEX_CHANGE(cons, hw_cons, q_depth); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 203 | BUG_ON(!(wis <= BNA_QE_IN_USE_CNT(tcb, tcb->q_depth))); |
| 204 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 205 | while (wis) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 206 | unmap = &unmap_q[cons]; |
| 207 | |
| 208 | skb = unmap->skb; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 209 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 210 | sent_packets++; |
| 211 | sent_bytes += skb->len; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 212 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 213 | unmap_wis = BNA_TXQ_WI_NEEDED(unmap->nvecs); |
| 214 | wis -= unmap_wis; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 215 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 216 | cons = bnad_tx_buff_unmap(bnad, unmap_q, q_depth, cons); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 217 | dev_kfree_skb_any(skb); |
| 218 | } |
| 219 | |
| 220 | /* Update consumer pointers. */ |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 221 | tcb->consumer_index = hw_cons; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 222 | |
| 223 | tcb->txq->tx_packets += sent_packets; |
| 224 | tcb->txq->tx_bytes += sent_bytes; |
| 225 | |
| 226 | return sent_packets; |
| 227 | } |
| 228 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 229 | static u32 |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 230 | bnad_tx_complete(struct bnad *bnad, struct bna_tcb *tcb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 231 | { |
| 232 | struct net_device *netdev = bnad->netdev; |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 233 | u32 sent = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 234 | |
| 235 | if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) |
| 236 | return 0; |
| 237 | |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 238 | sent = bnad_txcmpl_process(bnad, tcb); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 239 | if (sent) { |
| 240 | if (netif_queue_stopped(netdev) && |
| 241 | netif_carrier_ok(netdev) && |
| 242 | BNA_QE_FREE_CNT(tcb, tcb->q_depth) >= |
| 243 | BNAD_NETIF_WAKE_THRESHOLD) { |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 244 | if (test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) { |
| 245 | netif_wake_queue(netdev); |
| 246 | BNAD_UPDATE_CTR(bnad, netif_queue_wakeup); |
| 247 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 248 | } |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 249 | } |
| 250 | |
| 251 | if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 252 | bna_ib_ack(tcb->i_dbell, sent); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 253 | |
Peter Zijlstra | 4e857c5 | 2014-03-17 18:06:10 +0100 | [diff] [blame] | 254 | smp_mb__before_atomic(); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 255 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); |
| 256 | |
| 257 | return sent; |
| 258 | } |
| 259 | |
| 260 | /* MSIX Tx Completion Handler */ |
| 261 | static irqreturn_t |
| 262 | bnad_msix_tx(int irq, void *data) |
| 263 | { |
| 264 | struct bna_tcb *tcb = (struct bna_tcb *)data; |
| 265 | struct bnad *bnad = tcb->bnad; |
| 266 | |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 267 | bnad_tx_complete(bnad, tcb); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 268 | |
| 269 | return IRQ_HANDLED; |
| 270 | } |
| 271 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 272 | static inline void |
| 273 | bnad_rxq_alloc_uninit(struct bnad *bnad, struct bna_rcb *rcb) |
| 274 | { |
| 275 | struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q; |
| 276 | |
| 277 | unmap_q->reuse_pi = -1; |
| 278 | unmap_q->alloc_order = -1; |
| 279 | unmap_q->map_size = 0; |
| 280 | unmap_q->type = BNAD_RXBUF_NONE; |
| 281 | } |
| 282 | |
| 283 | /* Default is page-based allocation. Multi-buffer support - TBD */ |
| 284 | static int |
| 285 | bnad_rxq_alloc_init(struct bnad *bnad, struct bna_rcb *rcb) |
| 286 | { |
| 287 | struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q; |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 288 | int order; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 289 | |
| 290 | bnad_rxq_alloc_uninit(bnad, rcb); |
| 291 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 292 | order = get_order(rcb->rxq->buffer_size); |
| 293 | |
| 294 | unmap_q->type = BNAD_RXBUF_PAGE; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 295 | |
| 296 | if (bna_is_small_rxq(rcb->id)) { |
| 297 | unmap_q->alloc_order = 0; |
| 298 | unmap_q->map_size = rcb->rxq->buffer_size; |
| 299 | } else { |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 300 | if (rcb->rxq->multi_buffer) { |
| 301 | unmap_q->alloc_order = 0; |
| 302 | unmap_q->map_size = rcb->rxq->buffer_size; |
| 303 | unmap_q->type = BNAD_RXBUF_MULTI_BUFF; |
| 304 | } else { |
| 305 | unmap_q->alloc_order = order; |
| 306 | unmap_q->map_size = |
| 307 | (rcb->rxq->buffer_size > 2048) ? |
| 308 | PAGE_SIZE << order : 2048; |
| 309 | } |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 310 | } |
| 311 | |
Ivan Vecera | ebb56d3 | 2015-06-17 18:41:58 +0200 | [diff] [blame] | 312 | BUG_ON((PAGE_SIZE << order) % unmap_q->map_size); |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 313 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 314 | return 0; |
| 315 | } |
| 316 | |
| 317 | static inline void |
| 318 | bnad_rxq_cleanup_page(struct bnad *bnad, struct bnad_rx_unmap *unmap) |
| 319 | { |
| 320 | if (!unmap->page) |
| 321 | return; |
| 322 | |
| 323 | dma_unmap_page(&bnad->pcidev->dev, |
| 324 | dma_unmap_addr(&unmap->vector, dma_addr), |
| 325 | unmap->vector.len, DMA_FROM_DEVICE); |
| 326 | put_page(unmap->page); |
| 327 | unmap->page = NULL; |
| 328 | dma_unmap_addr_set(&unmap->vector, dma_addr, 0); |
| 329 | unmap->vector.len = 0; |
| 330 | } |
| 331 | |
| 332 | static inline void |
| 333 | bnad_rxq_cleanup_skb(struct bnad *bnad, struct bnad_rx_unmap *unmap) |
| 334 | { |
| 335 | if (!unmap->skb) |
| 336 | return; |
| 337 | |
| 338 | dma_unmap_single(&bnad->pcidev->dev, |
| 339 | dma_unmap_addr(&unmap->vector, dma_addr), |
| 340 | unmap->vector.len, DMA_FROM_DEVICE); |
| 341 | dev_kfree_skb_any(unmap->skb); |
| 342 | unmap->skb = NULL; |
| 343 | dma_unmap_addr_set(&unmap->vector, dma_addr, 0); |
| 344 | unmap->vector.len = 0; |
| 345 | } |
| 346 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 347 | static void |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 348 | bnad_rxq_cleanup(struct bnad *bnad, struct bna_rcb *rcb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 349 | { |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 350 | struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 351 | int i; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 352 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 353 | for (i = 0; i < rcb->q_depth; i++) { |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 354 | struct bnad_rx_unmap *unmap = &unmap_q->unmap[i]; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 355 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 356 | if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 357 | bnad_rxq_cleanup_skb(bnad, unmap); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 358 | else |
| 359 | bnad_rxq_cleanup_page(bnad, unmap); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 360 | } |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 361 | bnad_rxq_alloc_uninit(bnad, rcb); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 362 | } |
| 363 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 364 | static u32 |
| 365 | 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] | 366 | { |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 367 | u32 alloced, prod, q_depth; |
| 368 | struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q; |
| 369 | struct bnad_rx_unmap *unmap, *prev; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 370 | struct bna_rxq_entry *rxent; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 371 | struct page *page; |
| 372 | u32 page_offset, alloc_size; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 373 | dma_addr_t dma_addr; |
| 374 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 375 | prod = rcb->producer_index; |
| 376 | q_depth = rcb->q_depth; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 377 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 378 | alloc_size = PAGE_SIZE << unmap_q->alloc_order; |
| 379 | alloced = 0; |
| 380 | |
| 381 | while (nalloc--) { |
| 382 | unmap = &unmap_q->unmap[prod]; |
| 383 | |
| 384 | if (unmap_q->reuse_pi < 0) { |
| 385 | page = alloc_pages(GFP_ATOMIC | __GFP_COMP, |
| 386 | unmap_q->alloc_order); |
| 387 | page_offset = 0; |
| 388 | } else { |
| 389 | prev = &unmap_q->unmap[unmap_q->reuse_pi]; |
| 390 | page = prev->page; |
| 391 | page_offset = prev->page_offset + unmap_q->map_size; |
| 392 | get_page(page); |
| 393 | } |
| 394 | |
| 395 | if (unlikely(!page)) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 396 | BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed); |
Rasesh Mody | 3caa1e95 | 2011-08-30 15:27:42 +0000 | [diff] [blame] | 397 | rcb->rxq->rxbuf_alloc_failed++; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 398 | goto finishing; |
| 399 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 400 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 401 | dma_addr = dma_map_page(&bnad->pcidev->dev, page, page_offset, |
| 402 | unmap_q->map_size, DMA_FROM_DEVICE); |
| 403 | |
| 404 | unmap->page = page; |
| 405 | unmap->page_offset = page_offset; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 406 | dma_unmap_addr_set(&unmap->vector, dma_addr, dma_addr); |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 407 | unmap->vector.len = unmap_q->map_size; |
| 408 | page_offset += unmap_q->map_size; |
| 409 | |
| 410 | if (page_offset < alloc_size) |
| 411 | unmap_q->reuse_pi = prod; |
| 412 | else |
| 413 | unmap_q->reuse_pi = -1; |
| 414 | |
| 415 | rxent = &((struct bna_rxq_entry *)rcb->sw_q)[prod]; |
| 416 | BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 417 | BNA_QE_INDX_INC(prod, q_depth); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 418 | alloced++; |
| 419 | } |
| 420 | |
| 421 | finishing: |
| 422 | if (likely(alloced)) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 423 | rcb->producer_index = prod; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 424 | smp_mb(); |
Rasesh Mody | 5bcf6ac | 2011-09-27 10:39:10 +0000 | [diff] [blame] | 425 | if (likely(test_bit(BNAD_RXQ_POST_OK, &rcb->flags))) |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 426 | bna_rxq_prod_indx_doorbell(rcb); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 427 | } |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 428 | |
| 429 | return alloced; |
| 430 | } |
| 431 | |
| 432 | static u32 |
| 433 | bnad_rxq_refill_skb(struct bnad *bnad, struct bna_rcb *rcb, u32 nalloc) |
| 434 | { |
| 435 | u32 alloced, prod, q_depth, buff_sz; |
| 436 | struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q; |
| 437 | struct bnad_rx_unmap *unmap; |
| 438 | struct bna_rxq_entry *rxent; |
| 439 | struct sk_buff *skb; |
| 440 | dma_addr_t dma_addr; |
| 441 | |
| 442 | buff_sz = rcb->rxq->buffer_size; |
| 443 | prod = rcb->producer_index; |
| 444 | q_depth = rcb->q_depth; |
| 445 | |
| 446 | alloced = 0; |
| 447 | while (nalloc--) { |
| 448 | unmap = &unmap_q->unmap[prod]; |
| 449 | |
| 450 | skb = netdev_alloc_skb_ip_align(bnad->netdev, buff_sz); |
| 451 | |
| 452 | if (unlikely(!skb)) { |
| 453 | BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed); |
| 454 | rcb->rxq->rxbuf_alloc_failed++; |
| 455 | goto finishing; |
| 456 | } |
| 457 | dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data, |
| 458 | buff_sz, DMA_FROM_DEVICE); |
| 459 | |
| 460 | unmap->skb = skb; |
| 461 | dma_unmap_addr_set(&unmap->vector, dma_addr, dma_addr); |
| 462 | unmap->vector.len = buff_sz; |
| 463 | |
| 464 | rxent = &((struct bna_rxq_entry *)rcb->sw_q)[prod]; |
| 465 | BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr); |
| 466 | BNA_QE_INDX_INC(prod, q_depth); |
| 467 | alloced++; |
| 468 | } |
| 469 | |
| 470 | finishing: |
| 471 | if (likely(alloced)) { |
| 472 | rcb->producer_index = prod; |
| 473 | smp_mb(); |
| 474 | if (likely(test_bit(BNAD_RXQ_POST_OK, &rcb->flags))) |
| 475 | bna_rxq_prod_indx_doorbell(rcb); |
| 476 | } |
| 477 | |
| 478 | return alloced; |
| 479 | } |
| 480 | |
| 481 | static inline void |
| 482 | bnad_rxq_post(struct bnad *bnad, struct bna_rcb *rcb) |
| 483 | { |
| 484 | struct bnad_rx_unmap_q *unmap_q = rcb->unmap_q; |
| 485 | u32 to_alloc; |
| 486 | |
| 487 | to_alloc = BNA_QE_FREE_CNT(rcb, rcb->q_depth); |
| 488 | if (!(to_alloc >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT)) |
| 489 | return; |
| 490 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 491 | if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 492 | bnad_rxq_refill_skb(bnad, rcb, to_alloc); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 493 | else |
| 494 | bnad_rxq_refill_page(bnad, rcb, to_alloc); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 495 | } |
| 496 | |
Rasesh Mody | 5e46631f | 2012-12-11 12:24:50 +0000 | [diff] [blame] | 497 | #define flags_cksum_prot_mask (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \ |
| 498 | BNA_CQ_EF_IPV6 | \ |
| 499 | BNA_CQ_EF_TCP | BNA_CQ_EF_UDP | \ |
| 500 | BNA_CQ_EF_L4_CKSUM_OK) |
| 501 | |
| 502 | #define flags_tcp4 (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \ |
| 503 | BNA_CQ_EF_TCP | BNA_CQ_EF_L4_CKSUM_OK) |
| 504 | #define flags_tcp6 (BNA_CQ_EF_IPV6 | \ |
| 505 | BNA_CQ_EF_TCP | BNA_CQ_EF_L4_CKSUM_OK) |
| 506 | #define flags_udp4 (BNA_CQ_EF_IPV4 | BNA_CQ_EF_L3_CKSUM_OK | \ |
| 507 | BNA_CQ_EF_UDP | BNA_CQ_EF_L4_CKSUM_OK) |
| 508 | #define flags_udp6 (BNA_CQ_EF_IPV6 | \ |
| 509 | BNA_CQ_EF_UDP | BNA_CQ_EF_L4_CKSUM_OK) |
| 510 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 511 | static void |
| 512 | bnad_cq_drop_packet(struct bnad *bnad, struct bna_rcb *rcb, |
| 513 | u32 sop_ci, u32 nvecs) |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 514 | { |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 515 | struct bnad_rx_unmap_q *unmap_q; |
| 516 | struct bnad_rx_unmap *unmap; |
| 517 | u32 ci, vec; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 518 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 519 | unmap_q = rcb->unmap_q; |
| 520 | for (vec = 0, ci = sop_ci; vec < nvecs; vec++) { |
| 521 | unmap = &unmap_q->unmap[ci]; |
| 522 | BNA_QE_INDX_INC(ci, rcb->q_depth); |
| 523 | |
| 524 | if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) |
| 525 | bnad_rxq_cleanup_skb(bnad, unmap); |
| 526 | else |
| 527 | bnad_rxq_cleanup_page(bnad, unmap); |
| 528 | } |
| 529 | } |
| 530 | |
| 531 | static void |
| 532 | bnad_cq_setup_skb_frags(struct bna_rcb *rcb, struct sk_buff *skb, |
| 533 | u32 sop_ci, u32 nvecs, u32 last_fraglen) |
| 534 | { |
| 535 | struct bnad *bnad; |
| 536 | u32 ci, vec, len, totlen = 0; |
| 537 | struct bnad_rx_unmap_q *unmap_q; |
| 538 | struct bnad_rx_unmap *unmap; |
| 539 | |
| 540 | unmap_q = rcb->unmap_q; |
| 541 | bnad = rcb->bnad; |
Rasesh Mody | 66f9513 | 2013-12-17 17:07:36 -0800 | [diff] [blame] | 542 | |
| 543 | /* prefetch header */ |
| 544 | prefetch(page_address(unmap_q->unmap[sop_ci].page) + |
| 545 | unmap_q->unmap[sop_ci].page_offset); |
| 546 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 547 | for (vec = 1, ci = sop_ci; vec <= nvecs; vec++) { |
| 548 | unmap = &unmap_q->unmap[ci]; |
| 549 | BNA_QE_INDX_INC(ci, rcb->q_depth); |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 550 | |
| 551 | dma_unmap_page(&bnad->pcidev->dev, |
| 552 | dma_unmap_addr(&unmap->vector, dma_addr), |
| 553 | unmap->vector.len, DMA_FROM_DEVICE); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 554 | |
| 555 | len = (vec == nvecs) ? |
| 556 | last_fraglen : unmap->vector.len; |
Eric Dumazet | f2d9da1 | 2014-10-17 12:45:55 -0700 | [diff] [blame] | 557 | skb->truesize += unmap->vector.len; |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 558 | totlen += len; |
| 559 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 560 | skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags, |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 561 | unmap->page, unmap->page_offset, len); |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 562 | |
| 563 | unmap->page = NULL; |
| 564 | unmap->vector.len = 0; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 565 | } |
| 566 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 567 | skb->len += totlen; |
| 568 | skb->data_len += totlen; |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 569 | } |
| 570 | |
| 571 | static inline void |
| 572 | bnad_cq_setup_skb(struct bnad *bnad, struct sk_buff *skb, |
| 573 | struct bnad_rx_unmap *unmap, u32 len) |
| 574 | { |
| 575 | prefetch(skb->data); |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 576 | |
| 577 | dma_unmap_single(&bnad->pcidev->dev, |
| 578 | dma_unmap_addr(&unmap->vector, dma_addr), |
| 579 | unmap->vector.len, DMA_FROM_DEVICE); |
| 580 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 581 | skb_put(skb, len); |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 582 | skb->protocol = eth_type_trans(skb, bnad->netdev); |
| 583 | |
| 584 | unmap->skb = NULL; |
| 585 | unmap->vector.len = 0; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 586 | } |
| 587 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 588 | static u32 |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 589 | bnad_cq_process(struct bnad *bnad, struct bna_ccb *ccb, int budget) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 590 | { |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 591 | struct bna_cq_entry *cq, *cmpl, *next_cmpl; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 592 | struct bna_rcb *rcb = NULL; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 593 | struct bnad_rx_unmap_q *unmap_q; |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 594 | struct bnad_rx_unmap *unmap = NULL; |
| 595 | struct sk_buff *skb = NULL; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 596 | struct bna_pkt_rate *pkt_rt = &ccb->pkt_rate; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 597 | struct bnad_rx_ctrl *rx_ctrl = ccb->ctrl; |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 598 | u32 packets = 0, len = 0, totlen = 0; |
| 599 | u32 pi, vec, sop_ci = 0, nvecs = 0; |
| 600 | u32 flags, masked_flags; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 601 | |
| 602 | prefetch(bnad->netdev); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 603 | |
| 604 | cq = ccb->sw_q; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 605 | |
Rasesh Mody | 17a30a1 | 2013-12-17 17:07:37 -0800 | [diff] [blame] | 606 | while (packets < budget) { |
Ivan Vecera | c36c9d5 | 2014-07-29 16:29:30 +0200 | [diff] [blame] | 607 | cmpl = &cq[ccb->producer_index]; |
Rasesh Mody | 17a30a1 | 2013-12-17 17:07:37 -0800 | [diff] [blame] | 608 | if (!cmpl->valid) |
| 609 | break; |
| 610 | /* The 'valid' field is set by the adapter, only after writing |
| 611 | * the other fields of completion entry. Hence, do not load |
| 612 | * other fields of completion entry *before* the 'valid' is |
| 613 | * loaded. Adding the rmb() here prevents the compiler and/or |
| 614 | * CPU from reordering the reads which would potentially result |
| 615 | * in reading stale values in completion entry. |
| 616 | */ |
| 617 | rmb(); |
| 618 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 619 | BNA_UPDATE_PKT_CNT(pkt_rt, ntohs(cmpl->length)); |
| 620 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 621 | if (bna_is_small_rxq(cmpl->rxq_id)) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 622 | rcb = ccb->rcb[1]; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 623 | else |
| 624 | rcb = ccb->rcb[0]; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 625 | |
| 626 | unmap_q = rcb->unmap_q; |
| 627 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 628 | /* start of packet ci */ |
| 629 | sop_ci = rcb->consumer_index; |
| 630 | |
| 631 | if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) { |
| 632 | unmap = &unmap_q->unmap[sop_ci]; |
| 633 | skb = unmap->skb; |
| 634 | } else { |
| 635 | skb = napi_get_frags(&rx_ctrl->napi); |
| 636 | if (unlikely(!skb)) |
| 637 | break; |
| 638 | } |
| 639 | prefetch(skb); |
| 640 | |
| 641 | flags = ntohl(cmpl->flags); |
| 642 | len = ntohs(cmpl->length); |
| 643 | totlen = len; |
| 644 | nvecs = 1; |
| 645 | |
| 646 | /* Check all the completions for this frame. |
| 647 | * busy-wait doesn't help much, break here. |
| 648 | */ |
| 649 | if (BNAD_RXBUF_IS_MULTI_BUFF(unmap_q->type) && |
| 650 | (flags & BNA_CQ_EF_EOP) == 0) { |
| 651 | pi = ccb->producer_index; |
| 652 | do { |
| 653 | BNA_QE_INDX_INC(pi, ccb->q_depth); |
| 654 | next_cmpl = &cq[pi]; |
| 655 | |
| 656 | if (!next_cmpl->valid) |
| 657 | break; |
Rasesh Mody | 17a30a1 | 2013-12-17 17:07:37 -0800 | [diff] [blame] | 658 | /* The 'valid' field is set by the adapter, only |
| 659 | * after writing the other fields of completion |
| 660 | * entry. Hence, do not load other fields of |
| 661 | * completion entry *before* the 'valid' is |
| 662 | * loaded. Adding the rmb() here prevents the |
| 663 | * compiler and/or CPU from reordering the reads |
| 664 | * which would potentially result in reading |
| 665 | * stale values in completion entry. |
| 666 | */ |
| 667 | rmb(); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 668 | |
| 669 | len = ntohs(next_cmpl->length); |
| 670 | flags = ntohl(next_cmpl->flags); |
| 671 | |
| 672 | nvecs++; |
| 673 | totlen += len; |
| 674 | } while ((flags & BNA_CQ_EF_EOP) == 0); |
| 675 | |
| 676 | if (!next_cmpl->valid) |
| 677 | break; |
| 678 | } |
Ivan Vecera | ade4dc3 | 2015-08-06 22:48:23 +0200 | [diff] [blame] | 679 | packets++; |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 680 | |
| 681 | /* TODO: BNA_CQ_EF_LOCAL ? */ |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 682 | if (unlikely(flags & (BNA_CQ_EF_MAC_ERROR | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 683 | BNA_CQ_EF_FCS_ERROR | |
| 684 | BNA_CQ_EF_TOO_LONG))) { |
| 685 | bnad_cq_drop_packet(bnad, rcb, sop_ci, nvecs); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 686 | rcb->rxq->rx_packets_with_error++; |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 687 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 688 | goto next; |
| 689 | } |
| 690 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 691 | if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) |
| 692 | bnad_cq_setup_skb(bnad, skb, unmap, len); |
| 693 | else |
| 694 | bnad_cq_setup_skb_frags(rcb, skb, sop_ci, nvecs, len); |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 695 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 696 | rcb->rxq->rx_packets++; |
| 697 | rcb->rxq->rx_bytes += totlen; |
| 698 | ccb->bytes_per_intr += totlen; |
Rasesh Mody | 5e46631f | 2012-12-11 12:24:50 +0000 | [diff] [blame] | 699 | |
| 700 | masked_flags = flags & flags_cksum_prot_mask; |
| 701 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 702 | if (likely |
Michał Mirosław | e5ee20e | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 703 | ((bnad->netdev->features & NETIF_F_RXCSUM) && |
Rasesh Mody | 5e46631f | 2012-12-11 12:24:50 +0000 | [diff] [blame] | 704 | ((masked_flags == flags_tcp4) || |
| 705 | (masked_flags == flags_udp4) || |
| 706 | (masked_flags == flags_tcp6) || |
| 707 | (masked_flags == flags_udp6)))) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 708 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 709 | else |
Eric Dumazet | bc8acf2 | 2010-09-02 13:07:41 -0700 | [diff] [blame] | 710 | skb_checksum_none_assert(skb); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 711 | |
Ivan Vecera | 877767d | 2014-02-28 14:14:03 +0100 | [diff] [blame] | 712 | if ((flags & BNA_CQ_EF_VLAN) && |
| 713 | (bnad->netdev->features & NETIF_F_HW_VLAN_CTAG_RX)) |
Patrick McHardy | 86a9bad | 2013-04-19 02:04:30 +0000 | [diff] [blame] | 714 | __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] | 715 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 716 | if (BNAD_RXBUF_IS_SK_BUFF(unmap_q->type)) |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 717 | netif_receive_skb(skb); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 718 | else |
| 719 | napi_gro_frags(&rx_ctrl->napi); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 720 | |
| 721 | next: |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 722 | BNA_QE_INDX_ADD(rcb->consumer_index, nvecs, rcb->q_depth); |
| 723 | for (vec = 0; vec < nvecs; vec++) { |
| 724 | cmpl = &cq[ccb->producer_index]; |
| 725 | cmpl->valid = 0; |
| 726 | BNA_QE_INDX_INC(ccb->producer_index, ccb->q_depth); |
| 727 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 728 | } |
| 729 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 730 | napi_gro_flush(&rx_ctrl->napi, false); |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 731 | if (likely(test_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags))) |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 732 | bna_ib_ack_disable_irq(ccb->i_dbell, packets); |
| 733 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 734 | bnad_rxq_post(bnad, ccb->rcb[0]); |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 735 | if (ccb->rcb[1]) |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 736 | bnad_rxq_post(bnad, ccb->rcb[1]); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 737 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 738 | return packets; |
| 739 | } |
| 740 | |
| 741 | static void |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 742 | bnad_netif_rx_schedule_poll(struct bnad *bnad, struct bna_ccb *ccb) |
| 743 | { |
| 744 | struct bnad_rx_ctrl *rx_ctrl = (struct bnad_rx_ctrl *)(ccb->ctrl); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 745 | struct napi_struct *napi = &rx_ctrl->napi; |
| 746 | |
| 747 | if (likely(napi_schedule_prep(napi))) { |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 748 | __napi_schedule(napi); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 749 | rx_ctrl->rx_schedule++; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 750 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 751 | } |
| 752 | |
| 753 | /* MSIX Rx Path Handler */ |
| 754 | static irqreturn_t |
| 755 | bnad_msix_rx(int irq, void *data) |
| 756 | { |
| 757 | struct bna_ccb *ccb = (struct bna_ccb *)data; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 758 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 759 | if (ccb) { |
Ivan Vecera | ebb56d3 | 2015-06-17 18:41:58 +0200 | [diff] [blame] | 760 | ((struct bnad_rx_ctrl *)ccb->ctrl)->rx_intr_ctr++; |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 761 | bnad_netif_rx_schedule_poll(ccb->bnad, ccb); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 762 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 763 | |
| 764 | return IRQ_HANDLED; |
| 765 | } |
| 766 | |
| 767 | /* Interrupt handlers */ |
| 768 | |
| 769 | /* Mbox Interrupt Handlers */ |
| 770 | static irqreturn_t |
| 771 | bnad_msix_mbox_handler(int irq, void *data) |
| 772 | { |
| 773 | u32 intr_status; |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 774 | unsigned long flags; |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 775 | struct bnad *bnad = (struct bnad *)data; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 776 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 777 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | dfee325 | 2011-08-30 15:27:45 +0000 | [diff] [blame] | 778 | if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))) { |
| 779 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 780 | return IRQ_HANDLED; |
| 781 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 782 | |
| 783 | bna_intr_status_get(&bnad->bna, intr_status); |
| 784 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 785 | if (BNA_IS_MBOX_ERR_INTR(&bnad->bna, intr_status)) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 786 | bna_mbox_handler(&bnad->bna, intr_status); |
| 787 | |
| 788 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 789 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 790 | return IRQ_HANDLED; |
| 791 | } |
| 792 | |
| 793 | static irqreturn_t |
| 794 | bnad_isr(int irq, void *data) |
| 795 | { |
| 796 | int i, j; |
| 797 | u32 intr_status; |
| 798 | unsigned long flags; |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 799 | struct bnad *bnad = (struct bnad *)data; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 800 | struct bnad_rx_info *rx_info; |
| 801 | struct bnad_rx_ctrl *rx_ctrl; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 802 | struct bna_tcb *tcb = NULL; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 803 | |
Rasesh Mody | dfee325 | 2011-08-30 15:27:45 +0000 | [diff] [blame] | 804 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 805 | if (unlikely(test_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))) { |
| 806 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 807 | return IRQ_NONE; |
Rasesh Mody | dfee325 | 2011-08-30 15:27:45 +0000 | [diff] [blame] | 808 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 809 | |
| 810 | bna_intr_status_get(&bnad->bna, intr_status); |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 811 | |
Rasesh Mody | dfee325 | 2011-08-30 15:27:45 +0000 | [diff] [blame] | 812 | if (unlikely(!intr_status)) { |
| 813 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 814 | return IRQ_NONE; |
Rasesh Mody | dfee325 | 2011-08-30 15:27:45 +0000 | [diff] [blame] | 815 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 816 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 817 | if (BNA_IS_MBOX_ERR_INTR(&bnad->bna, intr_status)) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 818 | bna_mbox_handler(&bnad->bna, intr_status); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 819 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 820 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 821 | |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 822 | if (!BNA_IS_INTX_DATA_INTR(intr_status)) |
| 823 | return IRQ_HANDLED; |
| 824 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 825 | /* Process data interrupts */ |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 826 | /* Tx processing */ |
| 827 | for (i = 0; i < bnad->num_tx; i++) { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 828 | for (j = 0; j < bnad->num_txq_per_tx; j++) { |
| 829 | tcb = bnad->tx_info[i].tcb[j]; |
| 830 | if (tcb && test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)) |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 831 | bnad_tx_complete(bnad, bnad->tx_info[i].tcb[j]); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 832 | } |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 833 | } |
| 834 | /* Rx processing */ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 835 | for (i = 0; i < bnad->num_rx; i++) { |
| 836 | rx_info = &bnad->rx_info[i]; |
| 837 | if (!rx_info->rx) |
| 838 | continue; |
| 839 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { |
| 840 | rx_ctrl = &rx_info->rx_ctrl[j]; |
| 841 | if (rx_ctrl->ccb) |
| 842 | bnad_netif_rx_schedule_poll(bnad, |
| 843 | rx_ctrl->ccb); |
| 844 | } |
| 845 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 846 | return IRQ_HANDLED; |
| 847 | } |
| 848 | |
| 849 | /* |
| 850 | * Called in interrupt / callback context |
| 851 | * with bna_lock held, so cfg_flags access is OK |
| 852 | */ |
| 853 | static void |
| 854 | bnad_enable_mbox_irq(struct bnad *bnad) |
| 855 | { |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 856 | clear_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags); |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 857 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 858 | BNAD_UPDATE_CTR(bnad, mbox_intr_enabled); |
| 859 | } |
| 860 | |
| 861 | /* |
| 862 | * Called with bnad->bna_lock held b'cos of |
| 863 | * bnad->cfg_flags access. |
| 864 | */ |
Rasesh Mody | b7ee31c5 | 2010-10-05 15:46:05 +0000 | [diff] [blame] | 865 | static void |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 866 | bnad_disable_mbox_irq(struct bnad *bnad) |
| 867 | { |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 868 | set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags); |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 869 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 870 | BNAD_UPDATE_CTR(bnad, mbox_intr_disabled); |
| 871 | } |
| 872 | |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 873 | static void |
| 874 | bnad_set_netdev_perm_addr(struct bnad *bnad) |
| 875 | { |
| 876 | struct net_device *netdev = bnad->netdev; |
| 877 | |
Ivan Vecera | d6b3059 | 2015-06-11 15:52:14 +0200 | [diff] [blame] | 878 | ether_addr_copy(netdev->perm_addr, bnad->perm_addr); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 879 | if (is_zero_ether_addr(netdev->dev_addr)) |
Ivan Vecera | d6b3059 | 2015-06-11 15:52:14 +0200 | [diff] [blame] | 880 | ether_addr_copy(netdev->dev_addr, bnad->perm_addr); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 881 | } |
| 882 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 883 | /* Control Path Handlers */ |
| 884 | |
| 885 | /* Callbacks */ |
| 886 | void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 887 | bnad_cb_mbox_intr_enable(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 888 | { |
| 889 | bnad_enable_mbox_irq(bnad); |
| 890 | } |
| 891 | |
| 892 | void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 893 | bnad_cb_mbox_intr_disable(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 894 | { |
| 895 | bnad_disable_mbox_irq(bnad); |
| 896 | } |
| 897 | |
| 898 | void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 899 | bnad_cb_ioceth_ready(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 900 | { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 901 | bnad->bnad_completions.ioc_comp_status = BNA_CB_SUCCESS; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 902 | complete(&bnad->bnad_completions.ioc_comp); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 903 | } |
| 904 | |
| 905 | void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 906 | bnad_cb_ioceth_failed(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 907 | { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 908 | bnad->bnad_completions.ioc_comp_status = BNA_CB_FAIL; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 909 | complete(&bnad->bnad_completions.ioc_comp); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 910 | } |
| 911 | |
| 912 | void |
| 913 | bnad_cb_ioceth_disabled(struct bnad *bnad) |
| 914 | { |
| 915 | bnad->bnad_completions.ioc_comp_status = BNA_CB_SUCCESS; |
| 916 | complete(&bnad->bnad_completions.ioc_comp); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 917 | } |
| 918 | |
| 919 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 920 | bnad_cb_enet_disabled(void *arg) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 921 | { |
| 922 | struct bnad *bnad = (struct bnad *)arg; |
| 923 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 924 | netif_carrier_off(bnad->netdev); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 925 | complete(&bnad->bnad_completions.enet_comp); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 926 | } |
| 927 | |
| 928 | void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 929 | bnad_cb_ethport_link_status(struct bnad *bnad, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 930 | enum bna_link_status link_status) |
| 931 | { |
Rusty Russell | 3db1cd5 | 2011-12-19 13:56:45 +0000 | [diff] [blame] | 932 | bool link_up = false; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 933 | |
| 934 | link_up = (link_status == BNA_LINK_UP) || (link_status == BNA_CEE_UP); |
| 935 | |
| 936 | if (link_status == BNA_CEE_UP) { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 937 | if (!test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) |
| 938 | BNAD_UPDATE_CTR(bnad, cee_toggle); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 939 | set_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 940 | } else { |
| 941 | if (test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) |
| 942 | BNAD_UPDATE_CTR(bnad, cee_toggle); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 943 | clear_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 944 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 945 | |
| 946 | if (link_up) { |
| 947 | if (!netif_carrier_ok(bnad->netdev)) { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 948 | uint tx_id, tcb_id; |
Ivan Vecera | ecc4678 | 2015-06-11 15:52:31 +0200 | [diff] [blame] | 949 | netdev_info(bnad->netdev, "link up\n"); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 950 | netif_carrier_on(bnad->netdev); |
| 951 | BNAD_UPDATE_CTR(bnad, link_toggle); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 952 | for (tx_id = 0; tx_id < bnad->num_tx; tx_id++) { |
| 953 | for (tcb_id = 0; tcb_id < bnad->num_txq_per_tx; |
| 954 | tcb_id++) { |
| 955 | struct bna_tcb *tcb = |
| 956 | bnad->tx_info[tx_id].tcb[tcb_id]; |
| 957 | u32 txq_id; |
| 958 | if (!tcb) |
| 959 | continue; |
| 960 | |
| 961 | txq_id = tcb->id; |
| 962 | |
| 963 | if (test_bit(BNAD_TXQ_TX_STARTED, |
| 964 | &tcb->flags)) { |
| 965 | /* |
| 966 | * Force an immediate |
| 967 | * Transmit Schedule */ |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 968 | netif_wake_subqueue( |
| 969 | bnad->netdev, |
| 970 | txq_id); |
| 971 | BNAD_UPDATE_CTR(bnad, |
| 972 | netif_queue_wakeup); |
| 973 | } else { |
| 974 | netif_stop_subqueue( |
| 975 | bnad->netdev, |
| 976 | txq_id); |
| 977 | BNAD_UPDATE_CTR(bnad, |
| 978 | netif_queue_stop); |
| 979 | } |
| 980 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 981 | } |
| 982 | } |
| 983 | } else { |
| 984 | if (netif_carrier_ok(bnad->netdev)) { |
Ivan Vecera | ecc4678 | 2015-06-11 15:52:31 +0200 | [diff] [blame] | 985 | netdev_info(bnad->netdev, "link down\n"); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 986 | netif_carrier_off(bnad->netdev); |
| 987 | BNAD_UPDATE_CTR(bnad, link_toggle); |
| 988 | } |
| 989 | } |
| 990 | } |
| 991 | |
| 992 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 993 | bnad_cb_tx_disabled(void *arg, struct bna_tx *tx) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 994 | { |
| 995 | struct bnad *bnad = (struct bnad *)arg; |
| 996 | |
| 997 | complete(&bnad->bnad_completions.tx_comp); |
| 998 | } |
| 999 | |
| 1000 | static void |
| 1001 | bnad_cb_tcb_setup(struct bnad *bnad, struct bna_tcb *tcb) |
| 1002 | { |
| 1003 | struct bnad_tx_info *tx_info = |
| 1004 | (struct bnad_tx_info *)tcb->txq->tx->priv; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1005 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 1006 | tcb->priv = tcb; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1007 | tx_info->tcb[tcb->id] = tcb; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1008 | } |
| 1009 | |
| 1010 | static void |
| 1011 | bnad_cb_tcb_destroy(struct bnad *bnad, struct bna_tcb *tcb) |
| 1012 | { |
| 1013 | struct bnad_tx_info *tx_info = |
| 1014 | (struct bnad_tx_info *)tcb->txq->tx->priv; |
| 1015 | |
| 1016 | tx_info->tcb[tcb->id] = NULL; |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1017 | tcb->priv = NULL; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1018 | } |
| 1019 | |
| 1020 | static void |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1021 | bnad_cb_ccb_setup(struct bnad *bnad, struct bna_ccb *ccb) |
| 1022 | { |
| 1023 | struct bnad_rx_info *rx_info = |
| 1024 | (struct bnad_rx_info *)ccb->cq->rx->priv; |
| 1025 | |
| 1026 | rx_info->rx_ctrl[ccb->id].ccb = ccb; |
| 1027 | ccb->ctrl = &rx_info->rx_ctrl[ccb->id]; |
| 1028 | } |
| 1029 | |
| 1030 | static void |
| 1031 | bnad_cb_ccb_destroy(struct bnad *bnad, struct bna_ccb *ccb) |
| 1032 | { |
| 1033 | struct bnad_rx_info *rx_info = |
| 1034 | (struct bnad_rx_info *)ccb->cq->rx->priv; |
| 1035 | |
| 1036 | rx_info->rx_ctrl[ccb->id].ccb = NULL; |
| 1037 | } |
| 1038 | |
| 1039 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1040 | bnad_cb_tx_stall(struct bnad *bnad, struct bna_tx *tx) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1041 | { |
| 1042 | struct bnad_tx_info *tx_info = |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1043 | (struct bnad_tx_info *)tx->priv; |
| 1044 | struct bna_tcb *tcb; |
| 1045 | u32 txq_id; |
| 1046 | int i; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1047 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1048 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { |
| 1049 | tcb = tx_info->tcb[i]; |
| 1050 | if (!tcb) |
| 1051 | continue; |
| 1052 | txq_id = tcb->id; |
| 1053 | clear_bit(BNAD_TXQ_TX_STARTED, &tcb->flags); |
| 1054 | netif_stop_subqueue(bnad->netdev, txq_id); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1055 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1056 | } |
| 1057 | |
| 1058 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1059 | bnad_cb_tx_resume(struct bnad *bnad, struct bna_tx *tx) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1060 | { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1061 | struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv; |
| 1062 | struct bna_tcb *tcb; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1063 | u32 txq_id; |
| 1064 | int i; |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1065 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1066 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { |
| 1067 | tcb = tx_info->tcb[i]; |
| 1068 | if (!tcb) |
| 1069 | continue; |
| 1070 | txq_id = tcb->id; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1071 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1072 | BUG_ON(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags)); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1073 | set_bit(BNAD_TXQ_TX_STARTED, &tcb->flags); |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1074 | BUG_ON(*(tcb->hw_consumer_index) != 0); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1075 | |
| 1076 | if (netif_carrier_ok(bnad->netdev)) { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1077 | netif_wake_subqueue(bnad->netdev, txq_id); |
| 1078 | BNAD_UPDATE_CTR(bnad, netif_queue_wakeup); |
| 1079 | } |
| 1080 | } |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1081 | |
| 1082 | /* |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1083 | * Workaround for first ioceth enable failure & we |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1084 | * get a 0 MAC address. We try to get the MAC address |
| 1085 | * again here. |
| 1086 | */ |
Ivan Vecera | d6b3059 | 2015-06-11 15:52:14 +0200 | [diff] [blame] | 1087 | if (is_zero_ether_addr(bnad->perm_addr)) { |
| 1088 | bna_enet_perm_mac_get(&bnad->bna.enet, bnad->perm_addr); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1089 | bnad_set_netdev_perm_addr(bnad); |
| 1090 | } |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1091 | } |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1092 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1093 | /* |
| 1094 | * Free all TxQs buffers and then notify TX_E_CLEANUP_DONE to Tx fsm. |
| 1095 | */ |
| 1096 | static void |
| 1097 | bnad_tx_cleanup(struct delayed_work *work) |
| 1098 | { |
| 1099 | struct bnad_tx_info *tx_info = |
| 1100 | container_of(work, struct bnad_tx_info, tx_cleanup_work); |
| 1101 | struct bnad *bnad = NULL; |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1102 | struct bna_tcb *tcb; |
| 1103 | unsigned long flags; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 1104 | u32 i, pending = 0; |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1105 | |
| 1106 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { |
| 1107 | tcb = tx_info->tcb[i]; |
| 1108 | if (!tcb) |
| 1109 | continue; |
| 1110 | |
| 1111 | bnad = tcb->bnad; |
| 1112 | |
| 1113 | if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) { |
| 1114 | pending++; |
| 1115 | continue; |
| 1116 | } |
| 1117 | |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 1118 | bnad_txq_cleanup(bnad, tcb); |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1119 | |
Peter Zijlstra | 4e857c5 | 2014-03-17 18:06:10 +0100 | [diff] [blame] | 1120 | smp_mb__before_atomic(); |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1121 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); |
| 1122 | } |
| 1123 | |
| 1124 | if (pending) { |
| 1125 | queue_delayed_work(bnad->work_q, &tx_info->tx_cleanup_work, |
| 1126 | msecs_to_jiffies(1)); |
| 1127 | return; |
| 1128 | } |
| 1129 | |
| 1130 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1131 | bna_tx_cleanup_complete(tx_info->tx); |
| 1132 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1133 | } |
| 1134 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1135 | static void |
| 1136 | bnad_cb_tx_cleanup(struct bnad *bnad, struct bna_tx *tx) |
| 1137 | { |
| 1138 | struct bnad_tx_info *tx_info = (struct bnad_tx_info *)tx->priv; |
| 1139 | struct bna_tcb *tcb; |
| 1140 | int i; |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1141 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1142 | for (i = 0; i < BNAD_MAX_TXQ_PER_TX; i++) { |
| 1143 | tcb = tx_info->tcb[i]; |
| 1144 | if (!tcb) |
| 1145 | continue; |
| 1146 | } |
| 1147 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1148 | queue_delayed_work(bnad->work_q, &tx_info->tx_cleanup_work, 0); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1149 | } |
| 1150 | |
| 1151 | static void |
Rasesh Mody | 5bcf6ac | 2011-09-27 10:39:10 +0000 | [diff] [blame] | 1152 | bnad_cb_rx_stall(struct bnad *bnad, struct bna_rx *rx) |
| 1153 | { |
| 1154 | struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv; |
| 1155 | struct bna_ccb *ccb; |
| 1156 | struct bnad_rx_ctrl *rx_ctrl; |
| 1157 | int i; |
| 1158 | |
| 1159 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { |
| 1160 | rx_ctrl = &rx_info->rx_ctrl[i]; |
| 1161 | ccb = rx_ctrl->ccb; |
| 1162 | if (!ccb) |
| 1163 | continue; |
| 1164 | |
| 1165 | clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[0]->flags); |
| 1166 | |
| 1167 | if (ccb->rcb[1]) |
| 1168 | clear_bit(BNAD_RXQ_POST_OK, &ccb->rcb[1]->flags); |
| 1169 | } |
| 1170 | } |
| 1171 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1172 | /* |
| 1173 | * Free all RxQs buffers and then notify RX_E_CLEANUP_DONE to Rx fsm. |
| 1174 | */ |
| 1175 | static void |
| 1176 | bnad_rx_cleanup(void *work) |
| 1177 | { |
| 1178 | struct bnad_rx_info *rx_info = |
| 1179 | container_of(work, struct bnad_rx_info, rx_cleanup_work); |
| 1180 | struct bnad_rx_ctrl *rx_ctrl; |
| 1181 | struct bnad *bnad = NULL; |
| 1182 | unsigned long flags; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 1183 | u32 i; |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1184 | |
| 1185 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { |
| 1186 | rx_ctrl = &rx_info->rx_ctrl[i]; |
| 1187 | |
| 1188 | if (!rx_ctrl->ccb) |
| 1189 | continue; |
| 1190 | |
| 1191 | bnad = rx_ctrl->ccb->bnad; |
| 1192 | |
| 1193 | /* |
| 1194 | * Wait till the poll handler has exited |
| 1195 | * and nothing can be scheduled anymore |
| 1196 | */ |
| 1197 | napi_disable(&rx_ctrl->napi); |
| 1198 | |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 1199 | bnad_cq_cleanup(bnad, rx_ctrl->ccb); |
| 1200 | bnad_rxq_cleanup(bnad, rx_ctrl->ccb->rcb[0]); |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1201 | if (rx_ctrl->ccb->rcb[1]) |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 1202 | bnad_rxq_cleanup(bnad, rx_ctrl->ccb->rcb[1]); |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1203 | } |
| 1204 | |
| 1205 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1206 | bna_rx_cleanup_complete(rx_info->rx); |
| 1207 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1208 | } |
| 1209 | |
Rasesh Mody | 5bcf6ac | 2011-09-27 10:39:10 +0000 | [diff] [blame] | 1210 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1211 | bnad_cb_rx_cleanup(struct bnad *bnad, struct bna_rx *rx) |
| 1212 | { |
| 1213 | struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv; |
| 1214 | struct bna_ccb *ccb; |
| 1215 | struct bnad_rx_ctrl *rx_ctrl; |
| 1216 | int i; |
| 1217 | |
Rasesh Mody | 772b523 | 2011-08-30 15:27:37 +0000 | [diff] [blame] | 1218 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1219 | rx_ctrl = &rx_info->rx_ctrl[i]; |
| 1220 | ccb = rx_ctrl->ccb; |
| 1221 | if (!ccb) |
| 1222 | continue; |
| 1223 | |
| 1224 | clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags); |
| 1225 | |
| 1226 | if (ccb->rcb[1]) |
| 1227 | clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[1]->flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1228 | } |
| 1229 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1230 | queue_work(bnad->work_q, &rx_info->rx_cleanup_work); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1231 | } |
| 1232 | |
| 1233 | static void |
| 1234 | bnad_cb_rx_post(struct bnad *bnad, struct bna_rx *rx) |
| 1235 | { |
| 1236 | struct bnad_rx_info *rx_info = (struct bnad_rx_info *)rx->priv; |
| 1237 | struct bna_ccb *ccb; |
| 1238 | struct bna_rcb *rcb; |
| 1239 | struct bnad_rx_ctrl *rx_ctrl; |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 1240 | int i, j; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1241 | |
Rasesh Mody | 772b523 | 2011-08-30 15:27:37 +0000 | [diff] [blame] | 1242 | for (i = 0; i < BNAD_MAX_RXP_PER_RX; i++) { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1243 | rx_ctrl = &rx_info->rx_ctrl[i]; |
| 1244 | ccb = rx_ctrl->ccb; |
| 1245 | if (!ccb) |
| 1246 | continue; |
| 1247 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1248 | napi_enable(&rx_ctrl->napi); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1249 | |
| 1250 | for (j = 0; j < BNAD_MAX_RXQ_PER_RXP; j++) { |
| 1251 | rcb = ccb->rcb[j]; |
| 1252 | if (!rcb) |
| 1253 | continue; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1254 | |
Rasesh Mody | 30f9fc94 | 2012-12-11 12:24:53 +0000 | [diff] [blame] | 1255 | bnad_rxq_alloc_init(bnad, rcb); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1256 | set_bit(BNAD_RXQ_STARTED, &rcb->flags); |
Rasesh Mody | 5bcf6ac | 2011-09-27 10:39:10 +0000 | [diff] [blame] | 1257 | set_bit(BNAD_RXQ_POST_OK, &rcb->flags); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 1258 | bnad_rxq_post(bnad, rcb); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1259 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1260 | } |
| 1261 | } |
| 1262 | |
| 1263 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1264 | bnad_cb_rx_disabled(void *arg, struct bna_rx *rx) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1265 | { |
| 1266 | struct bnad *bnad = (struct bnad *)arg; |
| 1267 | |
| 1268 | complete(&bnad->bnad_completions.rx_comp); |
| 1269 | } |
| 1270 | |
| 1271 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1272 | bnad_cb_rx_mcast_add(struct bnad *bnad, struct bna_rx *rx) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1273 | { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1274 | bnad->bnad_completions.mcast_comp_status = BNA_CB_SUCCESS; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1275 | complete(&bnad->bnad_completions.mcast_comp); |
| 1276 | } |
| 1277 | |
| 1278 | void |
| 1279 | bnad_cb_stats_get(struct bnad *bnad, enum bna_cb_status status, |
| 1280 | struct bna_stats *stats) |
| 1281 | { |
| 1282 | if (status == BNA_CB_SUCCESS) |
| 1283 | BNAD_UPDATE_CTR(bnad, hw_stats_updates); |
| 1284 | |
| 1285 | if (!netif_running(bnad->netdev) || |
| 1286 | !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) |
| 1287 | return; |
| 1288 | |
| 1289 | mod_timer(&bnad->stats_timer, |
| 1290 | jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ)); |
| 1291 | } |
| 1292 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1293 | static void |
| 1294 | bnad_cb_enet_mtu_set(struct bnad *bnad) |
| 1295 | { |
| 1296 | bnad->bnad_completions.mtu_comp_status = BNA_CB_SUCCESS; |
| 1297 | complete(&bnad->bnad_completions.mtu_comp); |
| 1298 | } |
| 1299 | |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 1300 | void |
| 1301 | bnad_cb_completion(void *arg, enum bfa_status status) |
| 1302 | { |
| 1303 | struct bnad_iocmd_comp *iocmd_comp = |
| 1304 | (struct bnad_iocmd_comp *)arg; |
| 1305 | |
| 1306 | iocmd_comp->comp_status = (u32) status; |
| 1307 | complete(&iocmd_comp->comp); |
| 1308 | } |
| 1309 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1310 | /* Resource allocation, free functions */ |
| 1311 | |
| 1312 | static void |
| 1313 | bnad_mem_free(struct bnad *bnad, |
| 1314 | struct bna_mem_info *mem_info) |
| 1315 | { |
| 1316 | int i; |
| 1317 | dma_addr_t dma_pa; |
| 1318 | |
| 1319 | if (mem_info->mdl == NULL) |
| 1320 | return; |
| 1321 | |
| 1322 | for (i = 0; i < mem_info->num; i++) { |
| 1323 | if (mem_info->mdl[i].kva != NULL) { |
| 1324 | if (mem_info->mem_type == BNA_MEM_T_DMA) { |
| 1325 | BNA_GET_DMA_ADDR(&(mem_info->mdl[i].dma), |
| 1326 | dma_pa); |
Ivan Vecera | 5ea7431 | 2011-02-02 04:37:02 +0000 | [diff] [blame] | 1327 | dma_free_coherent(&bnad->pcidev->dev, |
| 1328 | mem_info->mdl[i].len, |
| 1329 | mem_info->mdl[i].kva, dma_pa); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1330 | } else |
| 1331 | kfree(mem_info->mdl[i].kva); |
| 1332 | } |
| 1333 | } |
| 1334 | kfree(mem_info->mdl); |
| 1335 | mem_info->mdl = NULL; |
| 1336 | } |
| 1337 | |
| 1338 | static int |
| 1339 | bnad_mem_alloc(struct bnad *bnad, |
| 1340 | struct bna_mem_info *mem_info) |
| 1341 | { |
| 1342 | int i; |
| 1343 | dma_addr_t dma_pa; |
| 1344 | |
| 1345 | if ((mem_info->num == 0) || (mem_info->len == 0)) { |
| 1346 | mem_info->mdl = NULL; |
| 1347 | return 0; |
| 1348 | } |
| 1349 | |
| 1350 | mem_info->mdl = kcalloc(mem_info->num, sizeof(struct bna_mem_descr), |
| 1351 | GFP_KERNEL); |
| 1352 | if (mem_info->mdl == NULL) |
| 1353 | return -ENOMEM; |
| 1354 | |
| 1355 | if (mem_info->mem_type == BNA_MEM_T_DMA) { |
| 1356 | for (i = 0; i < mem_info->num; i++) { |
| 1357 | mem_info->mdl[i].len = mem_info->len; |
| 1358 | mem_info->mdl[i].kva = |
Ivan Vecera | 5ea7431 | 2011-02-02 04:37:02 +0000 | [diff] [blame] | 1359 | dma_alloc_coherent(&bnad->pcidev->dev, |
Joe Perches | 1f9061d2 | 2013-03-15 07:23:58 +0000 | [diff] [blame] | 1360 | mem_info->len, &dma_pa, |
| 1361 | GFP_KERNEL); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1362 | if (mem_info->mdl[i].kva == NULL) |
| 1363 | goto err_return; |
| 1364 | |
| 1365 | BNA_SET_DMA_ADDR(dma_pa, |
| 1366 | &(mem_info->mdl[i].dma)); |
| 1367 | } |
| 1368 | } else { |
| 1369 | for (i = 0; i < mem_info->num; i++) { |
| 1370 | mem_info->mdl[i].len = mem_info->len; |
| 1371 | mem_info->mdl[i].kva = kzalloc(mem_info->len, |
| 1372 | GFP_KERNEL); |
| 1373 | if (mem_info->mdl[i].kva == NULL) |
| 1374 | goto err_return; |
| 1375 | } |
| 1376 | } |
| 1377 | |
| 1378 | return 0; |
| 1379 | |
| 1380 | err_return: |
| 1381 | bnad_mem_free(bnad, mem_info); |
| 1382 | return -ENOMEM; |
| 1383 | } |
| 1384 | |
| 1385 | /* Free IRQ for Mailbox */ |
| 1386 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1387 | bnad_mbox_irq_free(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1388 | { |
| 1389 | int irq; |
| 1390 | unsigned long flags; |
| 1391 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1392 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1393 | bnad_disable_mbox_irq(bnad); |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 1394 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1395 | |
| 1396 | irq = BNAD_GET_MBOX_IRQ(bnad); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1397 | free_irq(irq, bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1398 | } |
| 1399 | |
| 1400 | /* |
| 1401 | * Allocates IRQ for Mailbox, but keep it disabled |
| 1402 | * This will be enabled once we get the mbox enable callback |
| 1403 | * from bna |
| 1404 | */ |
| 1405 | static int |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1406 | bnad_mbox_irq_alloc(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1407 | { |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 1408 | int err = 0; |
| 1409 | unsigned long irq_flags, flags; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1410 | u32 irq; |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 1411 | irq_handler_t irq_handler; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1412 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1413 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1414 | if (bnad->cfg_flags & BNAD_CF_MSIX) { |
| 1415 | irq_handler = (irq_handler_t)bnad_msix_mbox_handler; |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 1416 | irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector; |
Shyam Iyer | 8279171 | 2011-07-14 15:00:32 +0000 | [diff] [blame] | 1417 | irq_flags = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1418 | } else { |
| 1419 | irq_handler = (irq_handler_t)bnad_isr; |
| 1420 | irq = bnad->pcidev->irq; |
Shyam Iyer | 5f77898 | 2011-06-28 08:58:05 +0000 | [diff] [blame] | 1421 | irq_flags = IRQF_SHARED; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1422 | } |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 1423 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1424 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1425 | sprintf(bnad->mbox_irq_name, "%s", BNAD_NAME); |
| 1426 | |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 1427 | /* |
| 1428 | * Set the Mbox IRQ disable flag, so that the IRQ handler |
| 1429 | * called from request_irq() for SHARED IRQs do not execute |
| 1430 | */ |
| 1431 | set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags); |
| 1432 | |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1433 | BNAD_UPDATE_CTR(bnad, mbox_intr_disabled); |
| 1434 | |
Shyam Iyer | 8279171 | 2011-07-14 15:00:32 +0000 | [diff] [blame] | 1435 | err = request_irq(irq, irq_handler, irq_flags, |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1436 | bnad->mbox_irq_name, bnad); |
Rasesh Mody | e2fa6f2 | 2010-10-05 15:46:04 +0000 | [diff] [blame] | 1437 | |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 1438 | return err; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1439 | } |
| 1440 | |
| 1441 | static void |
| 1442 | bnad_txrx_irq_free(struct bnad *bnad, struct bna_intr_info *intr_info) |
| 1443 | { |
| 1444 | kfree(intr_info->idl); |
| 1445 | intr_info->idl = NULL; |
| 1446 | } |
| 1447 | |
| 1448 | /* Allocates Interrupt Descriptor List for MSIX/INT-X vectors */ |
| 1449 | static int |
| 1450 | bnad_txrx_irq_alloc(struct bnad *bnad, enum bnad_intr_source src, |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1451 | u32 txrx_id, struct bna_intr_info *intr_info) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1452 | { |
| 1453 | int i, vector_start = 0; |
| 1454 | u32 cfg_flags; |
| 1455 | unsigned long flags; |
| 1456 | |
| 1457 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1458 | cfg_flags = bnad->cfg_flags; |
| 1459 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1460 | |
| 1461 | if (cfg_flags & BNAD_CF_MSIX) { |
| 1462 | intr_info->intr_type = BNA_INTR_T_MSIX; |
| 1463 | intr_info->idl = kcalloc(intr_info->num, |
| 1464 | sizeof(struct bna_intr_descr), |
| 1465 | GFP_KERNEL); |
| 1466 | if (!intr_info->idl) |
| 1467 | return -ENOMEM; |
| 1468 | |
| 1469 | switch (src) { |
| 1470 | case BNAD_INTR_TX: |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 1471 | vector_start = BNAD_MAILBOX_MSIX_VECTORS + txrx_id; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1472 | break; |
| 1473 | |
| 1474 | case BNAD_INTR_RX: |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 1475 | vector_start = BNAD_MAILBOX_MSIX_VECTORS + |
| 1476 | (bnad->num_tx * bnad->num_txq_per_tx) + |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1477 | txrx_id; |
| 1478 | break; |
| 1479 | |
| 1480 | default: |
| 1481 | BUG(); |
| 1482 | } |
| 1483 | |
| 1484 | for (i = 0; i < intr_info->num; i++) |
| 1485 | intr_info->idl[i].vector = vector_start + i; |
| 1486 | } else { |
| 1487 | intr_info->intr_type = BNA_INTR_T_INTX; |
| 1488 | intr_info->num = 1; |
| 1489 | intr_info->idl = kcalloc(intr_info->num, |
| 1490 | sizeof(struct bna_intr_descr), |
| 1491 | GFP_KERNEL); |
| 1492 | if (!intr_info->idl) |
| 1493 | return -ENOMEM; |
| 1494 | |
| 1495 | switch (src) { |
| 1496 | case BNAD_INTR_TX: |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 1497 | intr_info->idl[0].vector = BNAD_INTX_TX_IB_BITMASK; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1498 | break; |
| 1499 | |
| 1500 | case BNAD_INTR_RX: |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 1501 | intr_info->idl[0].vector = BNAD_INTX_RX_IB_BITMASK; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1502 | break; |
| 1503 | } |
| 1504 | } |
| 1505 | return 0; |
| 1506 | } |
| 1507 | |
Ben Hutchings | 1aa8b47 | 2012-07-10 10:56:59 +0000 | [diff] [blame] | 1508 | /* NOTE: Should be called for MSIX only |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1509 | * Unregisters Tx MSIX vector(s) from the kernel |
| 1510 | */ |
| 1511 | static void |
| 1512 | bnad_tx_msix_unregister(struct bnad *bnad, struct bnad_tx_info *tx_info, |
| 1513 | int num_txqs) |
| 1514 | { |
| 1515 | int i; |
| 1516 | int vector_num; |
| 1517 | |
| 1518 | for (i = 0; i < num_txqs; i++) { |
| 1519 | if (tx_info->tcb[i] == NULL) |
| 1520 | continue; |
| 1521 | |
| 1522 | vector_num = tx_info->tcb[i]->intr_vector; |
| 1523 | free_irq(bnad->msix_table[vector_num].vector, tx_info->tcb[i]); |
| 1524 | } |
| 1525 | } |
| 1526 | |
Ben Hutchings | 1aa8b47 | 2012-07-10 10:56:59 +0000 | [diff] [blame] | 1527 | /* NOTE: Should be called for MSIX only |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1528 | * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel |
| 1529 | */ |
| 1530 | static int |
| 1531 | 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] | 1532 | u32 tx_id, int num_txqs) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1533 | { |
| 1534 | int i; |
| 1535 | int err; |
| 1536 | int vector_num; |
| 1537 | |
| 1538 | for (i = 0; i < num_txqs; i++) { |
| 1539 | vector_num = tx_info->tcb[i]->intr_vector; |
| 1540 | sprintf(tx_info->tcb[i]->name, "%s TXQ %d", bnad->netdev->name, |
| 1541 | tx_id + tx_info->tcb[i]->id); |
| 1542 | err = request_irq(bnad->msix_table[vector_num].vector, |
| 1543 | (irq_handler_t)bnad_msix_tx, 0, |
| 1544 | tx_info->tcb[i]->name, |
| 1545 | tx_info->tcb[i]); |
| 1546 | if (err) |
| 1547 | goto err_return; |
| 1548 | } |
| 1549 | |
| 1550 | return 0; |
| 1551 | |
| 1552 | err_return: |
| 1553 | if (i > 0) |
| 1554 | bnad_tx_msix_unregister(bnad, tx_info, (i - 1)); |
| 1555 | return -1; |
| 1556 | } |
| 1557 | |
Ben Hutchings | 1aa8b47 | 2012-07-10 10:56:59 +0000 | [diff] [blame] | 1558 | /* NOTE: Should be called for MSIX only |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1559 | * Unregisters Rx MSIX vector(s) from the kernel |
| 1560 | */ |
| 1561 | static void |
| 1562 | bnad_rx_msix_unregister(struct bnad *bnad, struct bnad_rx_info *rx_info, |
| 1563 | int num_rxps) |
| 1564 | { |
| 1565 | int i; |
| 1566 | int vector_num; |
| 1567 | |
| 1568 | for (i = 0; i < num_rxps; i++) { |
| 1569 | if (rx_info->rx_ctrl[i].ccb == NULL) |
| 1570 | continue; |
| 1571 | |
| 1572 | vector_num = rx_info->rx_ctrl[i].ccb->intr_vector; |
| 1573 | free_irq(bnad->msix_table[vector_num].vector, |
| 1574 | rx_info->rx_ctrl[i].ccb); |
| 1575 | } |
| 1576 | } |
| 1577 | |
Ben Hutchings | 1aa8b47 | 2012-07-10 10:56:59 +0000 | [diff] [blame] | 1578 | /* NOTE: Should be called for MSIX only |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1579 | * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel |
| 1580 | */ |
| 1581 | static int |
| 1582 | 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] | 1583 | u32 rx_id, int num_rxps) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1584 | { |
| 1585 | int i; |
| 1586 | int err; |
| 1587 | int vector_num; |
| 1588 | |
| 1589 | for (i = 0; i < num_rxps; i++) { |
| 1590 | vector_num = rx_info->rx_ctrl[i].ccb->intr_vector; |
| 1591 | sprintf(rx_info->rx_ctrl[i].ccb->name, "%s CQ %d", |
| 1592 | bnad->netdev->name, |
| 1593 | rx_id + rx_info->rx_ctrl[i].ccb->id); |
| 1594 | err = request_irq(bnad->msix_table[vector_num].vector, |
| 1595 | (irq_handler_t)bnad_msix_rx, 0, |
| 1596 | rx_info->rx_ctrl[i].ccb->name, |
| 1597 | rx_info->rx_ctrl[i].ccb); |
| 1598 | if (err) |
| 1599 | goto err_return; |
| 1600 | } |
| 1601 | |
| 1602 | return 0; |
| 1603 | |
| 1604 | err_return: |
| 1605 | if (i > 0) |
| 1606 | bnad_rx_msix_unregister(bnad, rx_info, (i - 1)); |
| 1607 | return -1; |
| 1608 | } |
| 1609 | |
| 1610 | /* Free Tx object Resources */ |
| 1611 | static void |
| 1612 | bnad_tx_res_free(struct bnad *bnad, struct bna_res_info *res_info) |
| 1613 | { |
| 1614 | int i; |
| 1615 | |
| 1616 | for (i = 0; i < BNA_TX_RES_T_MAX; i++) { |
| 1617 | if (res_info[i].res_type == BNA_RES_T_MEM) |
| 1618 | bnad_mem_free(bnad, &res_info[i].res_u.mem_info); |
| 1619 | else if (res_info[i].res_type == BNA_RES_T_INTR) |
| 1620 | bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info); |
| 1621 | } |
| 1622 | } |
| 1623 | |
| 1624 | /* Allocates memory and interrupt resources for Tx object */ |
| 1625 | static int |
| 1626 | 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] | 1627 | u32 tx_id) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1628 | { |
| 1629 | int i, err = 0; |
| 1630 | |
| 1631 | for (i = 0; i < BNA_TX_RES_T_MAX; i++) { |
| 1632 | if (res_info[i].res_type == BNA_RES_T_MEM) |
| 1633 | err = bnad_mem_alloc(bnad, |
| 1634 | &res_info[i].res_u.mem_info); |
| 1635 | else if (res_info[i].res_type == BNA_RES_T_INTR) |
| 1636 | err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_TX, tx_id, |
| 1637 | &res_info[i].res_u.intr_info); |
| 1638 | if (err) |
| 1639 | goto err_return; |
| 1640 | } |
| 1641 | return 0; |
| 1642 | |
| 1643 | err_return: |
| 1644 | bnad_tx_res_free(bnad, res_info); |
| 1645 | return err; |
| 1646 | } |
| 1647 | |
| 1648 | /* Free Rx object Resources */ |
| 1649 | static void |
| 1650 | bnad_rx_res_free(struct bnad *bnad, struct bna_res_info *res_info) |
| 1651 | { |
| 1652 | int i; |
| 1653 | |
| 1654 | for (i = 0; i < BNA_RX_RES_T_MAX; i++) { |
| 1655 | if (res_info[i].res_type == BNA_RES_T_MEM) |
| 1656 | bnad_mem_free(bnad, &res_info[i].res_u.mem_info); |
| 1657 | else if (res_info[i].res_type == BNA_RES_T_INTR) |
| 1658 | bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info); |
| 1659 | } |
| 1660 | } |
| 1661 | |
| 1662 | /* Allocates memory and interrupt resources for Rx object */ |
| 1663 | static int |
| 1664 | bnad_rx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info, |
| 1665 | uint rx_id) |
| 1666 | { |
| 1667 | int i, err = 0; |
| 1668 | |
| 1669 | /* All memory needs to be allocated before setup_ccbs */ |
| 1670 | for (i = 0; i < BNA_RX_RES_T_MAX; i++) { |
| 1671 | if (res_info[i].res_type == BNA_RES_T_MEM) |
| 1672 | err = bnad_mem_alloc(bnad, |
| 1673 | &res_info[i].res_u.mem_info); |
| 1674 | else if (res_info[i].res_type == BNA_RES_T_INTR) |
| 1675 | err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_RX, rx_id, |
| 1676 | &res_info[i].res_u.intr_info); |
| 1677 | if (err) |
| 1678 | goto err_return; |
| 1679 | } |
| 1680 | return 0; |
| 1681 | |
| 1682 | err_return: |
| 1683 | bnad_rx_res_free(bnad, res_info); |
| 1684 | return err; |
| 1685 | } |
| 1686 | |
| 1687 | /* Timer callbacks */ |
| 1688 | /* a) IOC timer */ |
| 1689 | static void |
| 1690 | bnad_ioc_timeout(unsigned long data) |
| 1691 | { |
| 1692 | struct bnad *bnad = (struct bnad *)data; |
| 1693 | unsigned long flags; |
| 1694 | |
| 1695 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Ivan Vecera | ad24d6f | 2015-06-11 15:52:30 +0200 | [diff] [blame] | 1696 | bfa_nw_ioc_timeout(&bnad->bna.ioceth.ioc); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1697 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1698 | } |
| 1699 | |
| 1700 | static void |
| 1701 | bnad_ioc_hb_check(unsigned long data) |
| 1702 | { |
| 1703 | struct bnad *bnad = (struct bnad *)data; |
| 1704 | unsigned long flags; |
| 1705 | |
| 1706 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Ivan Vecera | ad24d6f | 2015-06-11 15:52:30 +0200 | [diff] [blame] | 1707 | bfa_nw_ioc_hb_check(&bnad->bna.ioceth.ioc); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1708 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1709 | } |
| 1710 | |
| 1711 | static void |
Rasesh Mody | 1d32f76 | 2010-12-23 21:45:09 +0000 | [diff] [blame] | 1712 | bnad_iocpf_timeout(unsigned long data) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1713 | { |
| 1714 | struct bnad *bnad = (struct bnad *)data; |
| 1715 | unsigned long flags; |
| 1716 | |
| 1717 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Ivan Vecera | ad24d6f | 2015-06-11 15:52:30 +0200 | [diff] [blame] | 1718 | bfa_nw_iocpf_timeout(&bnad->bna.ioceth.ioc); |
Rasesh Mody | 1d32f76 | 2010-12-23 21:45:09 +0000 | [diff] [blame] | 1719 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1720 | } |
| 1721 | |
| 1722 | static void |
| 1723 | bnad_iocpf_sem_timeout(unsigned long data) |
| 1724 | { |
| 1725 | struct bnad *bnad = (struct bnad *)data; |
| 1726 | unsigned long flags; |
| 1727 | |
| 1728 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Ivan Vecera | ad24d6f | 2015-06-11 15:52:30 +0200 | [diff] [blame] | 1729 | bfa_nw_iocpf_sem_timeout(&bnad->bna.ioceth.ioc); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1730 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1731 | } |
| 1732 | |
| 1733 | /* |
| 1734 | * All timer routines use bnad->bna_lock to protect against |
| 1735 | * the following race, which may occur in case of no locking: |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 1736 | * Time CPU m CPU n |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1737 | * 0 1 = test_bit |
| 1738 | * 1 clear_bit |
| 1739 | * 2 del_timer_sync |
| 1740 | * 3 mod_timer |
| 1741 | */ |
| 1742 | |
| 1743 | /* b) Dynamic Interrupt Moderation Timer */ |
| 1744 | static void |
| 1745 | bnad_dim_timeout(unsigned long data) |
| 1746 | { |
| 1747 | struct bnad *bnad = (struct bnad *)data; |
| 1748 | struct bnad_rx_info *rx_info; |
| 1749 | struct bnad_rx_ctrl *rx_ctrl; |
| 1750 | int i, j; |
| 1751 | unsigned long flags; |
| 1752 | |
| 1753 | if (!netif_carrier_ok(bnad->netdev)) |
| 1754 | return; |
| 1755 | |
| 1756 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1757 | for (i = 0; i < bnad->num_rx; i++) { |
| 1758 | rx_info = &bnad->rx_info[i]; |
| 1759 | if (!rx_info->rx) |
| 1760 | continue; |
| 1761 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { |
| 1762 | rx_ctrl = &rx_info->rx_ctrl[j]; |
| 1763 | if (!rx_ctrl->ccb) |
| 1764 | continue; |
| 1765 | bna_rx_dim_update(rx_ctrl->ccb); |
| 1766 | } |
| 1767 | } |
| 1768 | |
| 1769 | /* Check for BNAD_CF_DIM_ENABLED, does not eleminate a race */ |
| 1770 | if (test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) |
| 1771 | mod_timer(&bnad->dim_timer, |
| 1772 | jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ)); |
| 1773 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1774 | } |
| 1775 | |
| 1776 | /* c) Statistics Timer */ |
| 1777 | static void |
| 1778 | bnad_stats_timeout(unsigned long data) |
| 1779 | { |
| 1780 | struct bnad *bnad = (struct bnad *)data; |
| 1781 | unsigned long flags; |
| 1782 | |
| 1783 | if (!netif_running(bnad->netdev) || |
| 1784 | !test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) |
| 1785 | return; |
| 1786 | |
| 1787 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1788 | bna_hw_stats_get(&bnad->bna); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1789 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1790 | } |
| 1791 | |
| 1792 | /* |
| 1793 | * Set up timer for DIM |
| 1794 | * Called with bnad->bna_lock held |
| 1795 | */ |
| 1796 | void |
| 1797 | bnad_dim_timer_start(struct bnad *bnad) |
| 1798 | { |
| 1799 | if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED && |
| 1800 | !test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) { |
| 1801 | setup_timer(&bnad->dim_timer, bnad_dim_timeout, |
| 1802 | (unsigned long)bnad); |
| 1803 | set_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags); |
| 1804 | mod_timer(&bnad->dim_timer, |
| 1805 | jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ)); |
| 1806 | } |
| 1807 | } |
| 1808 | |
| 1809 | /* |
| 1810 | * Set up timer for statistics |
| 1811 | * Called with mutex_lock(&bnad->conf_mutex) held |
| 1812 | */ |
| 1813 | static void |
| 1814 | bnad_stats_timer_start(struct bnad *bnad) |
| 1815 | { |
| 1816 | unsigned long flags; |
| 1817 | |
| 1818 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1819 | if (!test_and_set_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) { |
| 1820 | setup_timer(&bnad->stats_timer, bnad_stats_timeout, |
| 1821 | (unsigned long)bnad); |
| 1822 | mod_timer(&bnad->stats_timer, |
| 1823 | jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ)); |
| 1824 | } |
| 1825 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1826 | } |
| 1827 | |
| 1828 | /* |
| 1829 | * Stops the stats timer |
| 1830 | * Called with mutex_lock(&bnad->conf_mutex) held |
| 1831 | */ |
| 1832 | static void |
| 1833 | bnad_stats_timer_stop(struct bnad *bnad) |
| 1834 | { |
| 1835 | int to_del = 0; |
| 1836 | unsigned long flags; |
| 1837 | |
| 1838 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1839 | if (test_and_clear_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) |
| 1840 | to_del = 1; |
| 1841 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1842 | if (to_del) |
| 1843 | del_timer_sync(&bnad->stats_timer); |
| 1844 | } |
| 1845 | |
| 1846 | /* Utilities */ |
| 1847 | |
| 1848 | static void |
| 1849 | bnad_netdev_mc_list_get(struct net_device *netdev, u8 *mc_list) |
| 1850 | { |
| 1851 | int i = 1; /* Index 0 has broadcast address */ |
| 1852 | struct netdev_hw_addr *mc_addr; |
| 1853 | |
| 1854 | netdev_for_each_mc_addr(mc_addr, netdev) { |
Ivan Vecera | e2f9ecf | 2015-06-11 15:52:13 +0200 | [diff] [blame] | 1855 | ether_addr_copy(&mc_list[i * ETH_ALEN], &mc_addr->addr[0]); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1856 | i++; |
| 1857 | } |
| 1858 | } |
| 1859 | |
| 1860 | static int |
| 1861 | bnad_napi_poll_rx(struct napi_struct *napi, int budget) |
| 1862 | { |
| 1863 | struct bnad_rx_ctrl *rx_ctrl = |
| 1864 | container_of(napi, struct bnad_rx_ctrl, napi); |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 1865 | struct bnad *bnad = rx_ctrl->bnad; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1866 | int rcvd = 0; |
| 1867 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 1868 | rx_ctrl->rx_poll_ctr++; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1869 | |
| 1870 | if (!netif_carrier_ok(bnad->netdev)) |
| 1871 | goto poll_exit; |
| 1872 | |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 1873 | rcvd = bnad_cq_process(bnad, rx_ctrl->ccb, budget); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 1874 | if (rcvd >= budget) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1875 | return rcvd; |
| 1876 | |
| 1877 | poll_exit: |
Rasesh Mody | 19dbff9 | 2011-08-30 15:27:41 +0000 | [diff] [blame] | 1878 | napi_complete(napi); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1879 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 1880 | rx_ctrl->rx_complete++; |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 1881 | |
| 1882 | if (rx_ctrl->ccb) |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 1883 | bnad_enable_rx_irq_unsafe(rx_ctrl->ccb); |
| 1884 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1885 | return rcvd; |
| 1886 | } |
| 1887 | |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 1888 | #define BNAD_NAPI_POLL_QUOTA 64 |
| 1889 | static void |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1890 | bnad_napi_add(struct bnad *bnad, u32 rx_id) |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 1891 | { |
| 1892 | struct bnad_rx_ctrl *rx_ctrl; |
| 1893 | int i; |
| 1894 | |
| 1895 | /* Initialize & enable NAPI */ |
| 1896 | for (i = 0; i < bnad->num_rxp_per_rx; i++) { |
| 1897 | rx_ctrl = &bnad->rx_info[rx_id].rx_ctrl[i]; |
| 1898 | netif_napi_add(bnad->netdev, &rx_ctrl->napi, |
| 1899 | bnad_napi_poll_rx, BNAD_NAPI_POLL_QUOTA); |
| 1900 | } |
| 1901 | } |
| 1902 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1903 | static void |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1904 | bnad_napi_delete(struct bnad *bnad, u32 rx_id) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1905 | { |
| 1906 | int i; |
| 1907 | |
| 1908 | /* First disable and then clean up */ |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 1909 | for (i = 0; i < bnad->num_rxp_per_rx; i++) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1910 | netif_napi_del(&bnad->rx_info[rx_id].rx_ctrl[i].napi); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1911 | } |
| 1912 | |
| 1913 | /* Should be held with conf_lock held */ |
| 1914 | void |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 1915 | bnad_destroy_tx(struct bnad *bnad, u32 tx_id) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1916 | { |
| 1917 | struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id]; |
| 1918 | struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0]; |
| 1919 | unsigned long flags; |
| 1920 | |
| 1921 | if (!tx_info->tx) |
| 1922 | return; |
| 1923 | |
| 1924 | init_completion(&bnad->bnad_completions.tx_comp); |
| 1925 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1926 | bna_tx_disable(tx_info->tx, BNA_HARD_CLEANUP, bnad_cb_tx_disabled); |
| 1927 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1928 | wait_for_completion(&bnad->bnad_completions.tx_comp); |
| 1929 | |
| 1930 | if (tx_info->tcb[0]->intr_type == BNA_INTR_T_MSIX) |
| 1931 | bnad_tx_msix_unregister(bnad, tx_info, |
| 1932 | bnad->num_txq_per_tx); |
| 1933 | |
| 1934 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1935 | bna_tx_destroy(tx_info->tx); |
| 1936 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1937 | |
| 1938 | tx_info->tx = NULL; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1939 | tx_info->tx_id = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1940 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1941 | bnad_tx_res_free(bnad, res_info); |
| 1942 | } |
| 1943 | |
| 1944 | /* Should be held with conf_lock held */ |
| 1945 | int |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1946 | bnad_setup_tx(struct bnad *bnad, u32 tx_id) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1947 | { |
| 1948 | int err; |
| 1949 | struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id]; |
| 1950 | struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0]; |
| 1951 | struct bna_intr_info *intr_info = |
| 1952 | &res_info[BNA_TX_RES_INTR_T_TXCMPL].res_u.intr_info; |
| 1953 | struct bna_tx_config *tx_config = &bnad->tx_config[tx_id]; |
stephen hemminger | d91d25d | 2011-09-16 11:09:51 +0000 | [diff] [blame] | 1954 | static const struct bna_tx_event_cbfn tx_cbfn = { |
| 1955 | .tcb_setup_cbfn = bnad_cb_tcb_setup, |
| 1956 | .tcb_destroy_cbfn = bnad_cb_tcb_destroy, |
| 1957 | .tx_stall_cbfn = bnad_cb_tx_stall, |
| 1958 | .tx_resume_cbfn = bnad_cb_tx_resume, |
| 1959 | .tx_cleanup_cbfn = bnad_cb_tx_cleanup, |
| 1960 | }; |
| 1961 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1962 | struct bna_tx *tx; |
| 1963 | unsigned long flags; |
| 1964 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1965 | tx_info->tx_id = tx_id; |
| 1966 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1967 | /* Initialize the Tx object configuration */ |
| 1968 | tx_config->num_txq = bnad->num_txq_per_tx; |
| 1969 | tx_config->txq_depth = bnad->txq_depth; |
| 1970 | tx_config->tx_type = BNA_TX_T_REGULAR; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 1971 | tx_config->coalescing_timeo = bnad->tx_coalescing_timeo; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1972 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1973 | /* Get BNA's resource requirement for one tx object */ |
| 1974 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1975 | bna_tx_res_req(bnad->num_txq_per_tx, |
| 1976 | bnad->txq_depth, res_info); |
| 1977 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 1978 | |
| 1979 | /* Fill Unmap Q memory requirements */ |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 1980 | BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_TX_RES_MEM_T_UNMAPQ], |
| 1981 | bnad->num_txq_per_tx, (sizeof(struct bnad_tx_unmap) * |
| 1982 | bnad->txq_depth)); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1983 | |
| 1984 | /* Allocate resources */ |
| 1985 | err = bnad_tx_res_alloc(bnad, res_info, tx_id); |
| 1986 | if (err) |
| 1987 | return err; |
| 1988 | |
| 1989 | /* Ask BNA to create one Tx object, supplying required resources */ |
| 1990 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 1991 | tx = bna_tx_create(&bnad->bna, bnad, tx_config, &tx_cbfn, res_info, |
| 1992 | tx_info); |
| 1993 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | f29eeb7 | 2013-12-17 17:07:39 -0800 | [diff] [blame] | 1994 | if (!tx) { |
| 1995 | err = -ENOMEM; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1996 | goto err_return; |
Rasesh Mody | f29eeb7 | 2013-12-17 17:07:39 -0800 | [diff] [blame] | 1997 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 1998 | tx_info->tx = tx; |
| 1999 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 2000 | INIT_DELAYED_WORK(&tx_info->tx_cleanup_work, |
| 2001 | (work_func_t)bnad_tx_cleanup); |
| 2002 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2003 | /* Register ISR for the Tx object */ |
| 2004 | if (intr_info->intr_type == BNA_INTR_T_MSIX) { |
| 2005 | err = bnad_tx_msix_register(bnad, tx_info, |
| 2006 | tx_id, bnad->num_txq_per_tx); |
| 2007 | if (err) |
Rasesh Mody | f29eeb7 | 2013-12-17 17:07:39 -0800 | [diff] [blame] | 2008 | goto cleanup_tx; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2009 | } |
| 2010 | |
| 2011 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2012 | bna_tx_enable(tx); |
| 2013 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2014 | |
| 2015 | return 0; |
| 2016 | |
Rasesh Mody | f29eeb7 | 2013-12-17 17:07:39 -0800 | [diff] [blame] | 2017 | cleanup_tx: |
| 2018 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2019 | bna_tx_destroy(tx_info->tx); |
| 2020 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2021 | tx_info->tx = NULL; |
| 2022 | tx_info->tx_id = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2023 | err_return: |
| 2024 | bnad_tx_res_free(bnad, res_info); |
| 2025 | return err; |
| 2026 | } |
| 2027 | |
| 2028 | /* Setup the rx config for bna_rx_create */ |
| 2029 | /* bnad decides the configuration */ |
| 2030 | static void |
| 2031 | bnad_init_rx_config(struct bnad *bnad, struct bna_rx_config *rx_config) |
| 2032 | { |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 2033 | memset(rx_config, 0, sizeof(*rx_config)); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2034 | rx_config->rx_type = BNA_RX_T_REGULAR; |
| 2035 | rx_config->num_paths = bnad->num_rxp_per_rx; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2036 | rx_config->coalescing_timeo = bnad->rx_coalescing_timeo; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2037 | |
| 2038 | if (bnad->num_rxp_per_rx > 1) { |
| 2039 | rx_config->rss_status = BNA_STATUS_T_ENABLED; |
| 2040 | rx_config->rss_config.hash_type = |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2041 | (BFI_ENET_RSS_IPV6 | |
| 2042 | BFI_ENET_RSS_IPV6_TCP | |
| 2043 | BFI_ENET_RSS_IPV4 | |
| 2044 | BFI_ENET_RSS_IPV4_TCP); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2045 | rx_config->rss_config.hash_mask = |
| 2046 | bnad->num_rxp_per_rx - 1; |
Eric Dumazet | 0fa6aa4 | 2014-11-16 06:23:09 -0800 | [diff] [blame] | 2047 | netdev_rss_key_fill(rx_config->rss_config.toeplitz_hash_key, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2048 | sizeof(rx_config->rss_config.toeplitz_hash_key)); |
| 2049 | } else { |
| 2050 | rx_config->rss_status = BNA_STATUS_T_DISABLED; |
| 2051 | memset(&rx_config->rss_config, 0, |
| 2052 | sizeof(rx_config->rss_config)); |
| 2053 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2054 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 2055 | rx_config->frame_size = BNAD_FRAME_SIZE(bnad->netdev->mtu); |
| 2056 | rx_config->q0_multi_buf = BNA_STATUS_T_DISABLED; |
| 2057 | |
| 2058 | /* BNA_RXP_SINGLE - one data-buffer queue |
| 2059 | * BNA_RXP_SLR - one small-buffer and one large-buffer queues |
| 2060 | * BNA_RXP_HDS - one header-buffer and one data-buffer queues |
| 2061 | */ |
| 2062 | /* TODO: configurable param for queue type */ |
| 2063 | rx_config->rxp_type = BNA_RXP_SLR; |
| 2064 | |
| 2065 | if (BNAD_PCI_DEV_IS_CAT2(bnad) && |
| 2066 | rx_config->frame_size > 4096) { |
| 2067 | /* though size_routing_enable is set in SLR, |
| 2068 | * small packets may get routed to same rxq. |
| 2069 | * set buf_size to 2048 instead of PAGE_SIZE. |
| 2070 | */ |
| 2071 | rx_config->q0_buf_size = 2048; |
| 2072 | /* this should be in multiples of 2 */ |
| 2073 | rx_config->q0_num_vecs = 4; |
| 2074 | rx_config->q0_depth = bnad->rxq_depth * rx_config->q0_num_vecs; |
| 2075 | rx_config->q0_multi_buf = BNA_STATUS_T_ENABLED; |
| 2076 | } else { |
| 2077 | rx_config->q0_buf_size = rx_config->frame_size; |
| 2078 | rx_config->q0_num_vecs = 1; |
| 2079 | rx_config->q0_depth = bnad->rxq_depth; |
| 2080 | } |
| 2081 | |
| 2082 | /* initialize for q1 for BNA_RXP_SLR/BNA_RXP_HDS */ |
| 2083 | if (rx_config->rxp_type == BNA_RXP_SLR) { |
| 2084 | rx_config->q1_depth = bnad->rxq_depth; |
| 2085 | rx_config->q1_buf_size = BFI_SMALL_RXBUF_SIZE; |
| 2086 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2087 | |
Ivan Vecera | 877767d | 2014-02-28 14:14:03 +0100 | [diff] [blame] | 2088 | rx_config->vlan_strip_status = |
| 2089 | (bnad->netdev->features & NETIF_F_HW_VLAN_CTAG_RX) ? |
| 2090 | BNA_STATUS_T_ENABLED : BNA_STATUS_T_DISABLED; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2091 | } |
| 2092 | |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 2093 | static void |
| 2094 | bnad_rx_ctrl_init(struct bnad *bnad, u32 rx_id) |
| 2095 | { |
| 2096 | struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id]; |
| 2097 | int i; |
| 2098 | |
| 2099 | for (i = 0; i < bnad->num_rxp_per_rx; i++) |
| 2100 | rx_info->rx_ctrl[i].bnad = bnad; |
| 2101 | } |
| 2102 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2103 | /* Called with mutex_lock(&bnad->conf_mutex) held */ |
stephen hemminger | 2fd888a | 2014-01-15 08:24:21 -0800 | [diff] [blame] | 2104 | static u32 |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 2105 | bnad_reinit_rx(struct bnad *bnad) |
| 2106 | { |
| 2107 | struct net_device *netdev = bnad->netdev; |
| 2108 | u32 err = 0, current_err = 0; |
| 2109 | u32 rx_id = 0, count = 0; |
| 2110 | unsigned long flags; |
| 2111 | |
| 2112 | /* destroy and create new rx objects */ |
| 2113 | for (rx_id = 0; rx_id < bnad->num_rx; rx_id++) { |
| 2114 | if (!bnad->rx_info[rx_id].rx) |
| 2115 | continue; |
| 2116 | bnad_destroy_rx(bnad, rx_id); |
| 2117 | } |
| 2118 | |
| 2119 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2120 | bna_enet_mtu_set(&bnad->bna.enet, |
| 2121 | BNAD_FRAME_SIZE(bnad->netdev->mtu), NULL); |
| 2122 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2123 | |
| 2124 | for (rx_id = 0; rx_id < bnad->num_rx; rx_id++) { |
| 2125 | count++; |
| 2126 | current_err = bnad_setup_rx(bnad, rx_id); |
| 2127 | if (current_err && !err) { |
| 2128 | err = current_err; |
Ivan Vecera | ecc4678 | 2015-06-11 15:52:31 +0200 | [diff] [blame] | 2129 | netdev_err(netdev, "RXQ:%u setup failed\n", rx_id); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 2130 | } |
| 2131 | } |
| 2132 | |
| 2133 | /* restore rx configuration */ |
| 2134 | if (bnad->rx_info[0].rx && !err) { |
| 2135 | bnad_restore_vlans(bnad, 0); |
| 2136 | bnad_enable_default_bcast(bnad); |
| 2137 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2138 | bnad_mac_addr_set_locked(bnad, netdev->dev_addr); |
| 2139 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2140 | bnad_set_rx_mode(netdev); |
| 2141 | } |
| 2142 | |
| 2143 | return count; |
| 2144 | } |
| 2145 | |
| 2146 | /* Called with bnad_conf_lock() held */ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2147 | void |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 2148 | bnad_destroy_rx(struct bnad *bnad, u32 rx_id) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2149 | { |
| 2150 | struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id]; |
| 2151 | struct bna_rx_config *rx_config = &bnad->rx_config[rx_id]; |
| 2152 | struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0]; |
| 2153 | unsigned long flags; |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2154 | int to_del = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2155 | |
| 2156 | if (!rx_info->rx) |
| 2157 | return; |
| 2158 | |
| 2159 | if (0 == rx_id) { |
| 2160 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2161 | if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED && |
| 2162 | test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2163 | clear_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2164 | to_del = 1; |
| 2165 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2166 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2167 | if (to_del) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2168 | del_timer_sync(&bnad->dim_timer); |
| 2169 | } |
| 2170 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2171 | init_completion(&bnad->bnad_completions.rx_comp); |
| 2172 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2173 | bna_rx_disable(rx_info->rx, BNA_HARD_CLEANUP, bnad_cb_rx_disabled); |
| 2174 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2175 | wait_for_completion(&bnad->bnad_completions.rx_comp); |
| 2176 | |
| 2177 | if (rx_info->rx_ctrl[0].ccb->intr_type == BNA_INTR_T_MSIX) |
| 2178 | bnad_rx_msix_unregister(bnad, rx_info, rx_config->num_paths); |
| 2179 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 2180 | bnad_napi_delete(bnad, rx_id); |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 2181 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2182 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2183 | bna_rx_destroy(rx_info->rx); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2184 | |
| 2185 | rx_info->rx = NULL; |
Rasesh Mody | 3caa1e95 | 2011-08-30 15:27:42 +0000 | [diff] [blame] | 2186 | rx_info->rx_id = 0; |
Rasesh Mody | b9fa1fb | 2011-09-16 15:06:48 +0000 | [diff] [blame] | 2187 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2188 | |
| 2189 | bnad_rx_res_free(bnad, res_info); |
| 2190 | } |
| 2191 | |
| 2192 | /* Called with mutex_lock(&bnad->conf_mutex) held */ |
| 2193 | int |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2194 | bnad_setup_rx(struct bnad *bnad, u32 rx_id) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2195 | { |
| 2196 | int err; |
| 2197 | struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id]; |
| 2198 | struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0]; |
| 2199 | struct bna_intr_info *intr_info = |
| 2200 | &res_info[BNA_RX_RES_T_INTR].res_u.intr_info; |
| 2201 | struct bna_rx_config *rx_config = &bnad->rx_config[rx_id]; |
stephen hemminger | d91d25d | 2011-09-16 11:09:51 +0000 | [diff] [blame] | 2202 | static const struct bna_rx_event_cbfn rx_cbfn = { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2203 | .rcb_setup_cbfn = NULL, |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 2204 | .rcb_destroy_cbfn = NULL, |
stephen hemminger | d91d25d | 2011-09-16 11:09:51 +0000 | [diff] [blame] | 2205 | .ccb_setup_cbfn = bnad_cb_ccb_setup, |
| 2206 | .ccb_destroy_cbfn = bnad_cb_ccb_destroy, |
Rasesh Mody | 5bcf6ac | 2011-09-27 10:39:10 +0000 | [diff] [blame] | 2207 | .rx_stall_cbfn = bnad_cb_rx_stall, |
stephen hemminger | d91d25d | 2011-09-16 11:09:51 +0000 | [diff] [blame] | 2208 | .rx_cleanup_cbfn = bnad_cb_rx_cleanup, |
| 2209 | .rx_post_cbfn = bnad_cb_rx_post, |
| 2210 | }; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2211 | struct bna_rx *rx; |
| 2212 | unsigned long flags; |
| 2213 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2214 | rx_info->rx_id = rx_id; |
| 2215 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2216 | /* Initialize the Rx object configuration */ |
| 2217 | bnad_init_rx_config(bnad, rx_config); |
| 2218 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2219 | /* Get BNA's resource requirement for one Rx object */ |
| 2220 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2221 | bna_rx_res_req(rx_config, res_info); |
| 2222 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2223 | |
| 2224 | /* Fill Unmap Q memory requirements */ |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 2225 | BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_RX_RES_MEM_T_UNMAPDQ], |
| 2226 | rx_config->num_paths, |
| 2227 | (rx_config->q0_depth * |
| 2228 | sizeof(struct bnad_rx_unmap)) + |
| 2229 | sizeof(struct bnad_rx_unmap_q)); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2230 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 2231 | if (rx_config->rxp_type != BNA_RXP_SINGLE) { |
| 2232 | BNAD_FILL_UNMAPQ_MEM_REQ(&res_info[BNA_RX_RES_MEM_T_UNMAPHQ], |
| 2233 | rx_config->num_paths, |
| 2234 | (rx_config->q1_depth * |
| 2235 | sizeof(struct bnad_rx_unmap) + |
| 2236 | sizeof(struct bnad_rx_unmap_q))); |
| 2237 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2238 | /* Allocate resource */ |
| 2239 | err = bnad_rx_res_alloc(bnad, res_info, rx_id); |
| 2240 | if (err) |
| 2241 | return err; |
| 2242 | |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 2243 | bnad_rx_ctrl_init(bnad, rx_id); |
| 2244 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2245 | /* Ask BNA to create one Rx object, supplying required resources */ |
| 2246 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2247 | rx = bna_rx_create(&bnad->bna, bnad, rx_config, &rx_cbfn, res_info, |
| 2248 | rx_info); |
Rasesh Mody | 3caa1e95 | 2011-08-30 15:27:42 +0000 | [diff] [blame] | 2249 | if (!rx) { |
| 2250 | err = -ENOMEM; |
Rasesh Mody | b9fa1fb | 2011-09-16 15:06:48 +0000 | [diff] [blame] | 2251 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2252 | goto err_return; |
Rasesh Mody | 3caa1e95 | 2011-08-30 15:27:42 +0000 | [diff] [blame] | 2253 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2254 | rx_info->rx = rx; |
Rasesh Mody | b9fa1fb | 2011-09-16 15:06:48 +0000 | [diff] [blame] | 2255 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2256 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 2257 | INIT_WORK(&rx_info->rx_cleanup_work, |
| 2258 | (work_func_t)(bnad_rx_cleanup)); |
| 2259 | |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 2260 | /* |
| 2261 | * Init NAPI, so that state is set to NAPI_STATE_SCHED, |
| 2262 | * so that IRQ handler cannot schedule NAPI at this point. |
| 2263 | */ |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 2264 | bnad_napi_add(bnad, rx_id); |
Rasesh Mody | 2be6714 | 2011-08-30 15:27:39 +0000 | [diff] [blame] | 2265 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2266 | /* Register ISR for the Rx object */ |
| 2267 | if (intr_info->intr_type == BNA_INTR_T_MSIX) { |
| 2268 | err = bnad_rx_msix_register(bnad, rx_info, rx_id, |
| 2269 | rx_config->num_paths); |
| 2270 | if (err) |
| 2271 | goto err_return; |
| 2272 | } |
| 2273 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2274 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2275 | if (0 == rx_id) { |
| 2276 | /* Set up Dynamic Interrupt Moderation Vector */ |
| 2277 | if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED) |
| 2278 | bna_rx_dim_reconfig(&bnad->bna, bna_napi_dim_vector); |
| 2279 | |
| 2280 | /* Enable VLAN filtering only on the default Rx */ |
| 2281 | bna_rx_vlanfilter_enable(rx); |
| 2282 | |
| 2283 | /* Start the DIM timer */ |
| 2284 | bnad_dim_timer_start(bnad); |
| 2285 | } |
| 2286 | |
| 2287 | bna_rx_enable(rx); |
| 2288 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2289 | |
| 2290 | return 0; |
| 2291 | |
| 2292 | err_return: |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 2293 | bnad_destroy_rx(bnad, rx_id); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2294 | return err; |
| 2295 | } |
| 2296 | |
| 2297 | /* Called with conf_lock & bnad->bna_lock held */ |
| 2298 | void |
| 2299 | bnad_tx_coalescing_timeo_set(struct bnad *bnad) |
| 2300 | { |
| 2301 | struct bnad_tx_info *tx_info; |
| 2302 | |
| 2303 | tx_info = &bnad->tx_info[0]; |
| 2304 | if (!tx_info->tx) |
| 2305 | return; |
| 2306 | |
| 2307 | bna_tx_coalescing_timeo_set(tx_info->tx, bnad->tx_coalescing_timeo); |
| 2308 | } |
| 2309 | |
| 2310 | /* Called with conf_lock & bnad->bna_lock held */ |
| 2311 | void |
| 2312 | bnad_rx_coalescing_timeo_set(struct bnad *bnad) |
| 2313 | { |
| 2314 | struct bnad_rx_info *rx_info; |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 2315 | int i; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2316 | |
| 2317 | for (i = 0; i < bnad->num_rx; i++) { |
| 2318 | rx_info = &bnad->rx_info[i]; |
| 2319 | if (!rx_info->rx) |
| 2320 | continue; |
| 2321 | bna_rx_coalescing_timeo_set(rx_info->rx, |
| 2322 | bnad->rx_coalescing_timeo); |
| 2323 | } |
| 2324 | } |
| 2325 | |
| 2326 | /* |
| 2327 | * Called with bnad->bna_lock held |
| 2328 | */ |
Rasesh Mody | a2122d9 | 2011-08-30 15:27:43 +0000 | [diff] [blame] | 2329 | int |
Ivan Vecera | 558caad | 2015-06-17 18:41:57 +0200 | [diff] [blame] | 2330 | bnad_mac_addr_set_locked(struct bnad *bnad, const u8 *mac_addr) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2331 | { |
| 2332 | int ret; |
| 2333 | |
| 2334 | if (!is_valid_ether_addr(mac_addr)) |
| 2335 | return -EADDRNOTAVAIL; |
| 2336 | |
| 2337 | /* If datapath is down, pretend everything went through */ |
| 2338 | if (!bnad->rx_info[0].rx) |
| 2339 | return 0; |
| 2340 | |
Ivan Vecera | 1f9883e | 2015-06-11 15:52:18 +0200 | [diff] [blame] | 2341 | ret = bna_rx_ucast_set(bnad->rx_info[0].rx, mac_addr); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2342 | if (ret != BNA_CB_SUCCESS) |
| 2343 | return -EADDRNOTAVAIL; |
| 2344 | |
| 2345 | return 0; |
| 2346 | } |
| 2347 | |
| 2348 | /* Should be called with conf_lock held */ |
Rasesh Mody | a2122d9 | 2011-08-30 15:27:43 +0000 | [diff] [blame] | 2349 | int |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2350 | bnad_enable_default_bcast(struct bnad *bnad) |
| 2351 | { |
| 2352 | struct bnad_rx_info *rx_info = &bnad->rx_info[0]; |
| 2353 | int ret; |
| 2354 | unsigned long flags; |
| 2355 | |
| 2356 | init_completion(&bnad->bnad_completions.mcast_comp); |
| 2357 | |
| 2358 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Ivan Vecera | 558caad | 2015-06-17 18:41:57 +0200 | [diff] [blame] | 2359 | ret = bna_rx_mcast_add(rx_info->rx, bnad_bcast_addr, |
| 2360 | bnad_cb_rx_mcast_add); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2361 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2362 | |
| 2363 | if (ret == BNA_CB_SUCCESS) |
| 2364 | wait_for_completion(&bnad->bnad_completions.mcast_comp); |
| 2365 | else |
| 2366 | return -ENODEV; |
| 2367 | |
| 2368 | if (bnad->bnad_completions.mcast_comp_status != BNA_CB_SUCCESS) |
| 2369 | return -ENODEV; |
| 2370 | |
| 2371 | return 0; |
| 2372 | } |
| 2373 | |
Rasesh Mody | 19dbff9 | 2011-08-30 15:27:41 +0000 | [diff] [blame] | 2374 | /* Called with mutex_lock(&bnad->conf_mutex) held */ |
Rasesh Mody | a2122d9 | 2011-08-30 15:27:43 +0000 | [diff] [blame] | 2375 | void |
Rasesh Mody | aad75b6 | 2010-12-23 21:45:08 +0000 | [diff] [blame] | 2376 | bnad_restore_vlans(struct bnad *bnad, u32 rx_id) |
| 2377 | { |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 2378 | u16 vid; |
Rasesh Mody | aad75b6 | 2010-12-23 21:45:08 +0000 | [diff] [blame] | 2379 | unsigned long flags; |
| 2380 | |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 2381 | for_each_set_bit(vid, bnad->active_vlans, VLAN_N_VID) { |
Rasesh Mody | aad75b6 | 2010-12-23 21:45:08 +0000 | [diff] [blame] | 2382 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 2383 | bna_rx_vlan_add(bnad->rx_info[rx_id].rx, vid); |
Rasesh Mody | aad75b6 | 2010-12-23 21:45:08 +0000 | [diff] [blame] | 2384 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2385 | } |
| 2386 | } |
| 2387 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2388 | /* Statistics utilities */ |
| 2389 | void |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2390 | bnad_netdev_qstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2391 | { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2392 | int i, j; |
| 2393 | |
| 2394 | for (i = 0; i < bnad->num_rx; i++) { |
| 2395 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { |
| 2396 | if (bnad->rx_info[i].rx_ctrl[j].ccb) { |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2397 | stats->rx_packets += bnad->rx_info[i]. |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2398 | rx_ctrl[j].ccb->rcb[0]->rxq->rx_packets; |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2399 | stats->rx_bytes += bnad->rx_info[i]. |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2400 | rx_ctrl[j].ccb->rcb[0]->rxq->rx_bytes; |
| 2401 | if (bnad->rx_info[i].rx_ctrl[j].ccb->rcb[1] && |
| 2402 | bnad->rx_info[i].rx_ctrl[j].ccb-> |
| 2403 | rcb[1]->rxq) { |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2404 | stats->rx_packets += |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2405 | bnad->rx_info[i].rx_ctrl[j]. |
| 2406 | ccb->rcb[1]->rxq->rx_packets; |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2407 | stats->rx_bytes += |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2408 | bnad->rx_info[i].rx_ctrl[j]. |
| 2409 | ccb->rcb[1]->rxq->rx_bytes; |
| 2410 | } |
| 2411 | } |
| 2412 | } |
| 2413 | } |
| 2414 | for (i = 0; i < bnad->num_tx; i++) { |
| 2415 | for (j = 0; j < bnad->num_txq_per_tx; j++) { |
| 2416 | if (bnad->tx_info[i].tcb[j]) { |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2417 | stats->tx_packets += |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2418 | bnad->tx_info[i].tcb[j]->txq->tx_packets; |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2419 | stats->tx_bytes += |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2420 | bnad->tx_info[i].tcb[j]->txq->tx_bytes; |
| 2421 | } |
| 2422 | } |
| 2423 | } |
| 2424 | } |
| 2425 | |
| 2426 | /* |
| 2427 | * Must be called with the bna_lock held. |
| 2428 | */ |
| 2429 | void |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2430 | bnad_netdev_hwstats_fill(struct bnad *bnad, struct rtnl_link_stats64 *stats) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2431 | { |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2432 | struct bfi_enet_stats_mac *mac_stats; |
| 2433 | u32 bmap; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2434 | int i; |
| 2435 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2436 | mac_stats = &bnad->stats.bna_stats->hw_stats.mac_stats; |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2437 | stats->rx_errors = |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2438 | mac_stats->rx_fcs_error + mac_stats->rx_alignment_error + |
| 2439 | mac_stats->rx_frame_length_error + mac_stats->rx_code_error + |
| 2440 | mac_stats->rx_undersize; |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2441 | stats->tx_errors = mac_stats->tx_fcs_error + |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2442 | mac_stats->tx_undersize; |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2443 | stats->rx_dropped = mac_stats->rx_drop; |
| 2444 | stats->tx_dropped = mac_stats->tx_drop; |
| 2445 | stats->multicast = mac_stats->rx_multicast; |
| 2446 | stats->collisions = mac_stats->tx_total_collision; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2447 | |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2448 | stats->rx_length_errors = mac_stats->rx_frame_length_error; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2449 | |
| 2450 | /* receive ring buffer overflow ?? */ |
| 2451 | |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2452 | stats->rx_crc_errors = mac_stats->rx_fcs_error; |
| 2453 | stats->rx_frame_errors = mac_stats->rx_alignment_error; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2454 | /* recv'r fifo overrun */ |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2455 | bmap = bna_rx_rid_mask(&bnad->bna); |
| 2456 | for (i = 0; bmap; i++) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2457 | if (bmap & 1) { |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 2458 | stats->rx_fifo_errors += |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2459 | bnad->stats.bna_stats-> |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2460 | hw_stats.rxf_stats[i].frame_drops; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2461 | break; |
| 2462 | } |
| 2463 | bmap >>= 1; |
| 2464 | } |
| 2465 | } |
| 2466 | |
| 2467 | static void |
| 2468 | bnad_mbox_irq_sync(struct bnad *bnad) |
| 2469 | { |
| 2470 | u32 irq; |
| 2471 | unsigned long flags; |
| 2472 | |
| 2473 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2474 | if (bnad->cfg_flags & BNAD_CF_MSIX) |
Rasesh Mody | 8811e26 | 2011-07-22 08:07:44 +0000 | [diff] [blame] | 2475 | irq = bnad->msix_table[BNAD_MAILBOX_MSIX_INDEX].vector; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2476 | else |
| 2477 | irq = bnad->pcidev->irq; |
| 2478 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2479 | |
| 2480 | synchronize_irq(irq); |
| 2481 | } |
| 2482 | |
| 2483 | /* Utility used by bnad_start_xmit, for doing TSO */ |
| 2484 | static int |
| 2485 | bnad_tso_prepare(struct bnad *bnad, struct sk_buff *skb) |
| 2486 | { |
| 2487 | int err; |
| 2488 | |
françois romieu | b13a8a9 | 2014-03-29 12:26:28 +0100 | [diff] [blame] | 2489 | err = skb_cow_head(skb, 0); |
| 2490 | if (err < 0) { |
| 2491 | BNAD_UPDATE_CTR(bnad, tso_err); |
| 2492 | return err; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2493 | } |
| 2494 | |
| 2495 | /* |
| 2496 | * For TSO, the TCP checksum field is seeded with pseudo-header sum |
| 2497 | * excluding the length field. |
| 2498 | */ |
Vlad Yasevich | 1c53730 | 2014-08-25 10:34:50 -0400 | [diff] [blame] | 2499 | if (vlan_get_protocol(skb) == htons(ETH_P_IP)) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2500 | struct iphdr *iph = ip_hdr(skb); |
| 2501 | |
| 2502 | /* Do we really need these? */ |
| 2503 | iph->tot_len = 0; |
| 2504 | iph->check = 0; |
| 2505 | |
| 2506 | tcp_hdr(skb)->check = |
| 2507 | ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0, |
| 2508 | IPPROTO_TCP, 0); |
| 2509 | BNAD_UPDATE_CTR(bnad, tso4); |
| 2510 | } else { |
| 2511 | struct ipv6hdr *ipv6h = ipv6_hdr(skb); |
| 2512 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2513 | ipv6h->payload_len = 0; |
| 2514 | tcp_hdr(skb)->check = |
| 2515 | ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, 0, |
| 2516 | IPPROTO_TCP, 0); |
| 2517 | BNAD_UPDATE_CTR(bnad, tso6); |
| 2518 | } |
| 2519 | |
| 2520 | return 0; |
| 2521 | } |
| 2522 | |
| 2523 | /* |
| 2524 | * Initialize Q numbers depending on Rx Paths |
| 2525 | * Called with bnad->bna_lock held, because of cfg_flags |
| 2526 | * access. |
| 2527 | */ |
| 2528 | static void |
| 2529 | bnad_q_num_init(struct bnad *bnad) |
| 2530 | { |
| 2531 | int rxps; |
| 2532 | |
| 2533 | rxps = min((uint)num_online_cpus(), |
Rasesh Mody | 772b523 | 2011-08-30 15:27:37 +0000 | [diff] [blame] | 2534 | (uint)(BNAD_MAX_RX * BNAD_MAX_RXP_PER_RX)); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2535 | |
| 2536 | if (!(bnad->cfg_flags & BNAD_CF_MSIX)) |
| 2537 | rxps = 1; /* INTx */ |
| 2538 | |
| 2539 | bnad->num_rx = 1; |
| 2540 | bnad->num_tx = 1; |
| 2541 | bnad->num_rxp_per_rx = rxps; |
| 2542 | bnad->num_txq_per_tx = BNAD_TXQ_NUM; |
| 2543 | } |
| 2544 | |
| 2545 | /* |
| 2546 | * Adjusts the Q numbers, given a number of msix vectors |
| 2547 | * Give preference to RSS as opposed to Tx priority Queues, |
| 2548 | * in such a case, just use 1 Tx Q |
| 2549 | * Called with bnad->bna_lock held b'cos of cfg_flags access |
| 2550 | */ |
| 2551 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2552 | bnad_q_num_adjust(struct bnad *bnad, int msix_vectors, int temp) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2553 | { |
| 2554 | bnad->num_txq_per_tx = 1; |
| 2555 | if ((msix_vectors >= (bnad->num_tx * bnad->num_txq_per_tx) + |
| 2556 | bnad_rxqs_per_cq + BNAD_MAILBOX_MSIX_VECTORS) && |
| 2557 | (bnad->cfg_flags & BNAD_CF_MSIX)) { |
| 2558 | bnad->num_rxp_per_rx = msix_vectors - |
| 2559 | (bnad->num_tx * bnad->num_txq_per_tx) - |
| 2560 | BNAD_MAILBOX_MSIX_VECTORS; |
| 2561 | } else |
| 2562 | bnad->num_rxp_per_rx = 1; |
| 2563 | } |
| 2564 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2565 | /* Enable / disable ioceth */ |
| 2566 | static int |
| 2567 | bnad_ioceth_disable(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2568 | { |
| 2569 | unsigned long flags; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2570 | int err = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2571 | |
| 2572 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2573 | init_completion(&bnad->bnad_completions.ioc_comp); |
| 2574 | bna_ioceth_disable(&bnad->bna.ioceth, BNA_HARD_CLEANUP); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2575 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2576 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2577 | wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp, |
| 2578 | msecs_to_jiffies(BNAD_IOCETH_TIMEOUT)); |
| 2579 | |
| 2580 | err = bnad->bnad_completions.ioc_comp_status; |
| 2581 | return err; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2582 | } |
| 2583 | |
| 2584 | static int |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2585 | bnad_ioceth_enable(struct bnad *bnad) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2586 | { |
| 2587 | int err = 0; |
| 2588 | unsigned long flags; |
| 2589 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2590 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2591 | init_completion(&bnad->bnad_completions.ioc_comp); |
| 2592 | bnad->bnad_completions.ioc_comp_status = BNA_CB_WAITING; |
| 2593 | bna_ioceth_enable(&bnad->bna.ioceth); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2594 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2595 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2596 | wait_for_completion_timeout(&bnad->bnad_completions.ioc_comp, |
| 2597 | msecs_to_jiffies(BNAD_IOCETH_TIMEOUT)); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2598 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2599 | err = bnad->bnad_completions.ioc_comp_status; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2600 | |
| 2601 | return err; |
| 2602 | } |
| 2603 | |
| 2604 | /* Free BNA resources */ |
| 2605 | static void |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2606 | bnad_res_free(struct bnad *bnad, struct bna_res_info *res_info, |
| 2607 | u32 res_val_max) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2608 | { |
| 2609 | int i; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2610 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2611 | for (i = 0; i < res_val_max; i++) |
| 2612 | bnad_mem_free(bnad, &res_info[i].res_u.mem_info); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2613 | } |
| 2614 | |
| 2615 | /* Allocates memory and interrupt resources for BNA */ |
| 2616 | static int |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2617 | bnad_res_alloc(struct bnad *bnad, struct bna_res_info *res_info, |
| 2618 | u32 res_val_max) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2619 | { |
| 2620 | int i, err; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2621 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2622 | for (i = 0; i < res_val_max; i++) { |
| 2623 | err = bnad_mem_alloc(bnad, &res_info[i].res_u.mem_info); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2624 | if (err) |
| 2625 | goto err_return; |
| 2626 | } |
| 2627 | return 0; |
| 2628 | |
| 2629 | err_return: |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2630 | bnad_res_free(bnad, res_info, res_val_max); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2631 | return err; |
| 2632 | } |
| 2633 | |
| 2634 | /* Interrupt enable / disable */ |
| 2635 | static void |
| 2636 | bnad_enable_msix(struct bnad *bnad) |
| 2637 | { |
| 2638 | int i, ret; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2639 | unsigned long flags; |
| 2640 | |
| 2641 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2642 | if (!(bnad->cfg_flags & BNAD_CF_MSIX)) { |
| 2643 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2644 | return; |
| 2645 | } |
| 2646 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2647 | |
| 2648 | if (bnad->msix_table) |
| 2649 | return; |
| 2650 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2651 | bnad->msix_table = |
Rasesh Mody | b7ee31c5 | 2010-10-05 15:46:05 +0000 | [diff] [blame] | 2652 | kcalloc(bnad->msix_num, sizeof(struct msix_entry), GFP_KERNEL); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2653 | |
| 2654 | if (!bnad->msix_table) |
| 2655 | goto intx_mode; |
| 2656 | |
Rasesh Mody | b7ee31c5 | 2010-10-05 15:46:05 +0000 | [diff] [blame] | 2657 | for (i = 0; i < bnad->msix_num; i++) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2658 | bnad->msix_table[i].entry = i; |
| 2659 | |
Alexander Gordeev | 43c2020 | 2014-02-18 11:07:56 +0100 | [diff] [blame] | 2660 | ret = pci_enable_msix_range(bnad->pcidev, bnad->msix_table, |
| 2661 | 1, bnad->msix_num); |
| 2662 | if (ret < 0) { |
| 2663 | goto intx_mode; |
| 2664 | } else if (ret < bnad->msix_num) { |
Ivan Vecera | ecc4678 | 2015-06-11 15:52:31 +0200 | [diff] [blame] | 2665 | dev_warn(&bnad->pcidev->dev, |
| 2666 | "%d MSI-X vectors allocated < %d requested\n", |
| 2667 | ret, bnad->msix_num); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2668 | |
| 2669 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2670 | /* ret = #of vectors that we got */ |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2671 | bnad_q_num_adjust(bnad, (ret - BNAD_MAILBOX_MSIX_VECTORS) / 2, |
| 2672 | (ret - BNAD_MAILBOX_MSIX_VECTORS) / 2); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2673 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2674 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2675 | bnad->msix_num = BNAD_NUM_TXQ + BNAD_NUM_RXP + |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2676 | BNAD_MAILBOX_MSIX_VECTORS; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2677 | |
Alexander Gordeev | 43c2020 | 2014-02-18 11:07:56 +0100 | [diff] [blame] | 2678 | if (bnad->msix_num > ret) { |
| 2679 | pci_disable_msix(bnad->pcidev); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2680 | goto intx_mode; |
Alexander Gordeev | 43c2020 | 2014-02-18 11:07:56 +0100 | [diff] [blame] | 2681 | } |
| 2682 | } |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2683 | |
| 2684 | pci_intx(bnad->pcidev, 0); |
| 2685 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2686 | return; |
| 2687 | |
| 2688 | intx_mode: |
Ivan Vecera | ecc4678 | 2015-06-11 15:52:31 +0200 | [diff] [blame] | 2689 | dev_warn(&bnad->pcidev->dev, |
| 2690 | "MSI-X enable failed - operating in INTx mode\n"); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2691 | |
| 2692 | kfree(bnad->msix_table); |
| 2693 | bnad->msix_table = NULL; |
| 2694 | bnad->msix_num = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2695 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2696 | bnad->cfg_flags &= ~BNAD_CF_MSIX; |
| 2697 | bnad_q_num_init(bnad); |
| 2698 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2699 | } |
| 2700 | |
| 2701 | static void |
| 2702 | bnad_disable_msix(struct bnad *bnad) |
| 2703 | { |
| 2704 | u32 cfg_flags; |
| 2705 | unsigned long flags; |
| 2706 | |
| 2707 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2708 | cfg_flags = bnad->cfg_flags; |
| 2709 | if (bnad->cfg_flags & BNAD_CF_MSIX) |
| 2710 | bnad->cfg_flags &= ~BNAD_CF_MSIX; |
| 2711 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2712 | |
| 2713 | if (cfg_flags & BNAD_CF_MSIX) { |
| 2714 | pci_disable_msix(bnad->pcidev); |
| 2715 | kfree(bnad->msix_table); |
| 2716 | bnad->msix_table = NULL; |
| 2717 | } |
| 2718 | } |
| 2719 | |
| 2720 | /* Netdev entry points */ |
| 2721 | static int |
| 2722 | bnad_open(struct net_device *netdev) |
| 2723 | { |
| 2724 | int err; |
| 2725 | struct bnad *bnad = netdev_priv(netdev); |
| 2726 | struct bna_pause_config pause_config; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2727 | unsigned long flags; |
| 2728 | |
| 2729 | mutex_lock(&bnad->conf_mutex); |
| 2730 | |
| 2731 | /* Tx */ |
| 2732 | err = bnad_setup_tx(bnad, 0); |
| 2733 | if (err) |
| 2734 | goto err_return; |
| 2735 | |
| 2736 | /* Rx */ |
| 2737 | err = bnad_setup_rx(bnad, 0); |
| 2738 | if (err) |
| 2739 | goto cleanup_tx; |
| 2740 | |
| 2741 | /* Port */ |
| 2742 | pause_config.tx_pause = 0; |
| 2743 | pause_config.rx_pause = 0; |
| 2744 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2745 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 2746 | bna_enet_mtu_set(&bnad->bna.enet, |
| 2747 | BNAD_FRAME_SIZE(bnad->netdev->mtu), NULL); |
Ivan Vecera | 1f9883e | 2015-06-11 15:52:18 +0200 | [diff] [blame] | 2748 | bna_enet_pause_config(&bnad->bna.enet, &pause_config); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2749 | bna_enet_enable(&bnad->bna.enet); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2750 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2751 | |
| 2752 | /* Enable broadcast */ |
| 2753 | bnad_enable_default_bcast(bnad); |
| 2754 | |
Rasesh Mody | aad75b6 | 2010-12-23 21:45:08 +0000 | [diff] [blame] | 2755 | /* Restore VLANs, if any */ |
| 2756 | bnad_restore_vlans(bnad, 0); |
| 2757 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2758 | /* Set the UCAST address */ |
| 2759 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 2760 | bnad_mac_addr_set_locked(bnad, netdev->dev_addr); |
| 2761 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2762 | |
| 2763 | /* Start the stats timer */ |
| 2764 | bnad_stats_timer_start(bnad); |
| 2765 | |
| 2766 | mutex_unlock(&bnad->conf_mutex); |
| 2767 | |
| 2768 | return 0; |
| 2769 | |
| 2770 | cleanup_tx: |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 2771 | bnad_destroy_tx(bnad, 0); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2772 | |
| 2773 | err_return: |
| 2774 | mutex_unlock(&bnad->conf_mutex); |
| 2775 | return err; |
| 2776 | } |
| 2777 | |
| 2778 | static int |
| 2779 | bnad_stop(struct net_device *netdev) |
| 2780 | { |
| 2781 | struct bnad *bnad = netdev_priv(netdev); |
| 2782 | unsigned long flags; |
| 2783 | |
| 2784 | mutex_lock(&bnad->conf_mutex); |
| 2785 | |
| 2786 | /* Stop the stats timer */ |
| 2787 | bnad_stats_timer_stop(bnad); |
| 2788 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2789 | init_completion(&bnad->bnad_completions.enet_comp); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2790 | |
| 2791 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2792 | bna_enet_disable(&bnad->bna.enet, BNA_HARD_CLEANUP, |
| 2793 | bnad_cb_enet_disabled); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2794 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 2795 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2796 | wait_for_completion(&bnad->bnad_completions.enet_comp); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2797 | |
Jing Huang | b3cc6e8 | 2012-04-04 05:44:14 +0000 | [diff] [blame] | 2798 | bnad_destroy_tx(bnad, 0); |
| 2799 | bnad_destroy_rx(bnad, 0); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2800 | |
| 2801 | /* Synchronize mailbox IRQ */ |
| 2802 | bnad_mbox_irq_sync(bnad); |
| 2803 | |
| 2804 | mutex_unlock(&bnad->conf_mutex); |
| 2805 | |
| 2806 | return 0; |
| 2807 | } |
| 2808 | |
| 2809 | /* TX */ |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2810 | /* Returns 0 for success */ |
| 2811 | static int |
| 2812 | bnad_txq_wi_prepare(struct bnad *bnad, struct bna_tcb *tcb, |
| 2813 | struct sk_buff *skb, struct bna_txq_entry *txqent) |
| 2814 | { |
| 2815 | u16 flags = 0; |
| 2816 | u32 gso_size; |
| 2817 | u16 vlan_tag = 0; |
| 2818 | |
Jiri Pirko | df8a39d | 2015-01-13 17:13:44 +0100 | [diff] [blame] | 2819 | if (skb_vlan_tag_present(skb)) { |
| 2820 | vlan_tag = (u16)skb_vlan_tag_get(skb); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2821 | flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN); |
| 2822 | } |
| 2823 | if (test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) { |
| 2824 | vlan_tag = ((tcb->priority & 0x7) << VLAN_PRIO_SHIFT) |
| 2825 | | (vlan_tag & 0x1fff); |
| 2826 | flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN); |
| 2827 | } |
| 2828 | txqent->hdr.wi.vlan_tag = htons(vlan_tag); |
| 2829 | |
| 2830 | if (skb_is_gso(skb)) { |
| 2831 | gso_size = skb_shinfo(skb)->gso_size; |
| 2832 | if (unlikely(gso_size > bnad->netdev->mtu)) { |
| 2833 | BNAD_UPDATE_CTR(bnad, tx_skb_mss_too_long); |
| 2834 | return -EINVAL; |
| 2835 | } |
| 2836 | if (unlikely((gso_size + skb_transport_offset(skb) + |
| 2837 | tcp_hdrlen(skb)) >= skb->len)) { |
Joe Perches | b779d0a | 2014-03-12 10:22:30 -0700 | [diff] [blame] | 2838 | txqent->hdr.wi.opcode = htons(BNA_TXQ_WI_SEND); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2839 | txqent->hdr.wi.lso_mss = 0; |
| 2840 | BNAD_UPDATE_CTR(bnad, tx_skb_tso_too_short); |
| 2841 | } else { |
Joe Perches | b779d0a | 2014-03-12 10:22:30 -0700 | [diff] [blame] | 2842 | txqent->hdr.wi.opcode = htons(BNA_TXQ_WI_SEND_LSO); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2843 | txqent->hdr.wi.lso_mss = htons(gso_size); |
| 2844 | } |
| 2845 | |
| 2846 | if (bnad_tso_prepare(bnad, skb)) { |
| 2847 | BNAD_UPDATE_CTR(bnad, tx_skb_tso_prepare); |
| 2848 | return -EINVAL; |
| 2849 | } |
| 2850 | |
| 2851 | flags |= (BNA_TXQ_WI_CF_IP_CKSUM | BNA_TXQ_WI_CF_TCP_CKSUM); |
| 2852 | txqent->hdr.wi.l4_hdr_size_n_offset = |
| 2853 | htons(BNA_TXQ_WI_L4_HDR_N_OFFSET( |
| 2854 | tcp_hdrlen(skb) >> 2, skb_transport_offset(skb))); |
| 2855 | } else { |
Joe Perches | b779d0a | 2014-03-12 10:22:30 -0700 | [diff] [blame] | 2856 | txqent->hdr.wi.opcode = htons(BNA_TXQ_WI_SEND); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2857 | txqent->hdr.wi.lso_mss = 0; |
| 2858 | |
Ivan Vecera | 6654cf6 | 2014-10-06 19:02:37 +0200 | [diff] [blame] | 2859 | if (unlikely(skb->len > (bnad->netdev->mtu + VLAN_ETH_HLEN))) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2860 | BNAD_UPDATE_CTR(bnad, tx_skb_non_tso_too_long); |
| 2861 | return -EINVAL; |
| 2862 | } |
| 2863 | |
| 2864 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
Vlad Yasevich | 1c53730 | 2014-08-25 10:34:50 -0400 | [diff] [blame] | 2865 | __be16 net_proto = vlan_get_protocol(skb); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2866 | u8 proto = 0; |
| 2867 | |
Vlad Yasevich | 1c53730 | 2014-08-25 10:34:50 -0400 | [diff] [blame] | 2868 | if (net_proto == htons(ETH_P_IP)) |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2869 | proto = ip_hdr(skb)->protocol; |
| 2870 | #ifdef NETIF_F_IPV6_CSUM |
Vlad Yasevich | 1c53730 | 2014-08-25 10:34:50 -0400 | [diff] [blame] | 2871 | else if (net_proto == htons(ETH_P_IPV6)) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2872 | /* nexthdr may not be TCP immediately. */ |
| 2873 | proto = ipv6_hdr(skb)->nexthdr; |
| 2874 | } |
| 2875 | #endif |
| 2876 | if (proto == IPPROTO_TCP) { |
| 2877 | flags |= BNA_TXQ_WI_CF_TCP_CKSUM; |
| 2878 | txqent->hdr.wi.l4_hdr_size_n_offset = |
| 2879 | htons(BNA_TXQ_WI_L4_HDR_N_OFFSET |
| 2880 | (0, skb_transport_offset(skb))); |
| 2881 | |
| 2882 | BNAD_UPDATE_CTR(bnad, tcpcsum_offload); |
| 2883 | |
| 2884 | if (unlikely(skb_headlen(skb) < |
| 2885 | skb_transport_offset(skb) + |
| 2886 | tcp_hdrlen(skb))) { |
| 2887 | BNAD_UPDATE_CTR(bnad, tx_skb_tcp_hdr); |
| 2888 | return -EINVAL; |
| 2889 | } |
| 2890 | } else if (proto == IPPROTO_UDP) { |
| 2891 | flags |= BNA_TXQ_WI_CF_UDP_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, udpcsum_offload); |
| 2897 | if (unlikely(skb_headlen(skb) < |
| 2898 | skb_transport_offset(skb) + |
| 2899 | sizeof(struct udphdr))) { |
| 2900 | BNAD_UPDATE_CTR(bnad, tx_skb_udp_hdr); |
| 2901 | return -EINVAL; |
| 2902 | } |
| 2903 | } else { |
| 2904 | |
| 2905 | BNAD_UPDATE_CTR(bnad, tx_skb_csum_err); |
| 2906 | return -EINVAL; |
| 2907 | } |
| 2908 | } else |
| 2909 | txqent->hdr.wi.l4_hdr_size_n_offset = 0; |
| 2910 | } |
| 2911 | |
| 2912 | txqent->hdr.wi.flags = htons(flags); |
| 2913 | txqent->hdr.wi.frame_length = htonl(skb->len); |
| 2914 | |
| 2915 | return 0; |
| 2916 | } |
| 2917 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2918 | /* |
| 2919 | * bnad_start_xmit : Netdev entry point for Transmit |
| 2920 | * Called under lock held by net_device |
| 2921 | */ |
| 2922 | static netdev_tx_t |
| 2923 | bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev) |
| 2924 | { |
| 2925 | struct bnad *bnad = netdev_priv(netdev); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 2926 | u32 txq_id = 0; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2927 | struct bna_tcb *tcb = NULL; |
| 2928 | struct bnad_tx_unmap *unmap_q, *unmap, *head_unmap; |
| 2929 | u32 prod, q_depth, vect_id; |
| 2930 | u32 wis, vectors, len; |
| 2931 | int i; |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 2932 | dma_addr_t dma_addr; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2933 | struct bna_txq_entry *txqent; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2934 | |
| 2935 | len = skb_headlen(skb); |
| 2936 | |
| 2937 | /* Sanity checks for the skb */ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2938 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2939 | if (unlikely(skb->len <= ETH_HLEN)) { |
Eric W. Biederman | 27400df | 2014-03-15 16:06:40 -0700 | [diff] [blame] | 2940 | dev_kfree_skb_any(skb); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2941 | BNAD_UPDATE_CTR(bnad, tx_skb_too_short); |
| 2942 | return NETDEV_TX_OK; |
| 2943 | } |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2944 | if (unlikely(len > BFI_TX_MAX_DATA_PER_VECTOR)) { |
Eric W. Biederman | 27400df | 2014-03-15 16:06:40 -0700 | [diff] [blame] | 2945 | dev_kfree_skb_any(skb); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2946 | BNAD_UPDATE_CTR(bnad, tx_skb_headlen_zero); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2947 | return NETDEV_TX_OK; |
| 2948 | } |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2949 | if (unlikely(len == 0)) { |
Eric W. Biederman | 27400df | 2014-03-15 16:06:40 -0700 | [diff] [blame] | 2950 | dev_kfree_skb_any(skb); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2951 | BNAD_UPDATE_CTR(bnad, tx_skb_headlen_zero); |
| 2952 | return NETDEV_TX_OK; |
| 2953 | } |
| 2954 | |
| 2955 | tcb = bnad->tx_info[0].tcb[txq_id]; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2956 | |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 2957 | /* |
| 2958 | * Takes care of the Tx that is scheduled between clearing the flag |
Rasesh Mody | 19dbff9 | 2011-08-30 15:27:41 +0000 | [diff] [blame] | 2959 | * and the netif_tx_stop_all_queues() call. |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 2960 | */ |
Rasesh Mody | 96e31ad | 2013-12-17 17:07:38 -0800 | [diff] [blame] | 2961 | if (unlikely(!tcb || !test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) { |
Eric W. Biederman | 27400df | 2014-03-15 16:06:40 -0700 | [diff] [blame] | 2962 | dev_kfree_skb_any(skb); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2963 | BNAD_UPDATE_CTR(bnad, tx_skb_stopping); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 2964 | return NETDEV_TX_OK; |
| 2965 | } |
| 2966 | |
Rasesh Mody | 96e31ad | 2013-12-17 17:07:38 -0800 | [diff] [blame] | 2967 | q_depth = tcb->q_depth; |
| 2968 | prod = tcb->producer_index; |
| 2969 | unmap_q = tcb->unmap_q; |
| 2970 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2971 | vectors = 1 + skb_shinfo(skb)->nr_frags; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2972 | wis = BNA_TXQ_WI_NEEDED(vectors); /* 4 vectors per work item */ |
| 2973 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2974 | if (unlikely(vectors > BFI_TX_MAX_VECTORS_PER_PKT)) { |
Eric W. Biederman | 27400df | 2014-03-15 16:06:40 -0700 | [diff] [blame] | 2975 | dev_kfree_skb_any(skb); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 2976 | BNAD_UPDATE_CTR(bnad, tx_skb_max_vectors); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2977 | return NETDEV_TX_OK; |
| 2978 | } |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2979 | |
| 2980 | /* Check for available TxQ resources */ |
| 2981 | if (unlikely(wis > BNA_QE_FREE_CNT(tcb, q_depth))) { |
| 2982 | if ((*tcb->hw_consumer_index != tcb->consumer_index) && |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2983 | !test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2984 | u32 sent; |
| 2985 | sent = bnad_txcmpl_process(bnad, tcb); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 2986 | if (likely(test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 2987 | bna_ib_ack(tcb->i_dbell, sent); |
Peter Zijlstra | 4e857c5 | 2014-03-17 18:06:10 +0100 | [diff] [blame] | 2988 | smp_mb__before_atomic(); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 2989 | clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags); |
| 2990 | } else { |
| 2991 | netif_stop_queue(netdev); |
| 2992 | BNAD_UPDATE_CTR(bnad, netif_queue_stop); |
| 2993 | } |
| 2994 | |
| 2995 | smp_mb(); |
| 2996 | /* |
| 2997 | * Check again to deal with race condition between |
| 2998 | * netif_stop_queue here, and netif_wake_queue in |
| 2999 | * interrupt handler which is not inside netif tx lock. |
| 3000 | */ |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3001 | if (likely(wis > BNA_QE_FREE_CNT(tcb, q_depth))) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3002 | BNAD_UPDATE_CTR(bnad, netif_queue_stop); |
| 3003 | return NETDEV_TX_BUSY; |
| 3004 | } else { |
| 3005 | netif_wake_queue(netdev); |
| 3006 | BNAD_UPDATE_CTR(bnad, netif_queue_wakeup); |
| 3007 | } |
| 3008 | } |
| 3009 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3010 | txqent = &((struct bna_txq_entry *)tcb->sw_q)[prod]; |
| 3011 | head_unmap = &unmap_q[prod]; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3012 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3013 | /* Program the opcode, flags, frame_len, num_vectors in WI */ |
| 3014 | if (bnad_txq_wi_prepare(bnad, tcb, skb, txqent)) { |
Eric W. Biederman | 27400df | 2014-03-15 16:06:40 -0700 | [diff] [blame] | 3015 | dev_kfree_skb_any(skb); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3016 | return NETDEV_TX_OK; |
| 3017 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3018 | txqent->hdr.wi.reserved = 0; |
| 3019 | txqent->hdr.wi.num_vectors = vectors; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3020 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3021 | head_unmap->skb = skb; |
| 3022 | head_unmap->nvecs = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3023 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3024 | /* Program the vectors */ |
| 3025 | unmap = head_unmap; |
Ivan Vecera | 5ea7431 | 2011-02-02 04:37:02 +0000 | [diff] [blame] | 3026 | dma_addr = dma_map_single(&bnad->pcidev->dev, skb->data, |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3027 | len, DMA_TO_DEVICE); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3028 | BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[0].host_addr); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3029 | txqent->vector[0].length = htons(len); |
| 3030 | dma_unmap_addr_set(&unmap->vectors[0], dma_addr, dma_addr); |
| 3031 | head_unmap->nvecs++; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3032 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3033 | for (i = 0, vect_id = 0; i < vectors - 1; i++) { |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 3034 | const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i]; |
Rasesh Mody | 24f5d33 | 2013-12-17 17:07:40 -0800 | [diff] [blame] | 3035 | u32 size = skb_frag_size(frag); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3036 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3037 | if (unlikely(size == 0)) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3038 | /* Undo the changes starting at tcb->producer_index */ |
| 3039 | bnad_tx_buff_unmap(bnad, unmap_q, q_depth, |
| 3040 | tcb->producer_index); |
Eric W. Biederman | 27400df | 2014-03-15 16:06:40 -0700 | [diff] [blame] | 3041 | dev_kfree_skb_any(skb); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3042 | BNAD_UPDATE_CTR(bnad, tx_skb_frag_zero); |
| 3043 | return NETDEV_TX_OK; |
| 3044 | } |
| 3045 | |
| 3046 | len += size; |
| 3047 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3048 | vect_id++; |
| 3049 | if (vect_id == BFI_TX_MAX_VECTORS_PER_WI) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3050 | vect_id = 0; |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3051 | BNA_QE_INDX_INC(prod, q_depth); |
| 3052 | txqent = &((struct bna_txq_entry *)tcb->sw_q)[prod]; |
Joe Perches | b779d0a | 2014-03-12 10:22:30 -0700 | [diff] [blame] | 3053 | txqent->hdr.wi_ext.opcode = htons(BNA_TXQ_WI_EXTENSION); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3054 | unmap = &unmap_q[prod]; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3055 | } |
| 3056 | |
Ian Campbell | 4d5b1a6 | 2011-08-29 23:18:24 +0000 | [diff] [blame] | 3057 | dma_addr = skb_frag_dma_map(&bnad->pcidev->dev, frag, |
| 3058 | 0, size, DMA_TO_DEVICE); |
David S. Miller | ecca6a9 | 2014-01-06 20:37:41 -0500 | [diff] [blame] | 3059 | dma_unmap_len_set(&unmap->vectors[vect_id], dma_len, size); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3060 | BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[vect_id].host_addr); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3061 | txqent->vector[vect_id].length = htons(size); |
| 3062 | dma_unmap_addr_set(&unmap->vectors[vect_id], dma_addr, |
David S. Miller | ecca6a9 | 2014-01-06 20:37:41 -0500 | [diff] [blame] | 3063 | dma_addr); |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3064 | head_unmap->nvecs++; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3065 | } |
| 3066 | |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3067 | if (unlikely(len != skb->len)) { |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3068 | /* Undo the changes starting at tcb->producer_index */ |
| 3069 | bnad_tx_buff_unmap(bnad, unmap_q, q_depth, tcb->producer_index); |
Eric W. Biederman | 27400df | 2014-03-15 16:06:40 -0700 | [diff] [blame] | 3070 | dev_kfree_skb_any(skb); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3071 | BNAD_UPDATE_CTR(bnad, tx_skb_len_mismatch); |
| 3072 | return NETDEV_TX_OK; |
| 3073 | } |
| 3074 | |
Rasesh Mody | 5216562 | 2012-12-11 12:24:51 +0000 | [diff] [blame] | 3075 | BNA_QE_INDX_INC(prod, q_depth); |
| 3076 | tcb->producer_index = prod; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3077 | |
| 3078 | smp_mb(); |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 3079 | |
| 3080 | if (unlikely(!test_bit(BNAD_TXQ_TX_STARTED, &tcb->flags))) |
| 3081 | return NETDEV_TX_OK; |
| 3082 | |
Rasesh Mody | fee1253 | 2013-12-17 17:07:31 -0800 | [diff] [blame] | 3083 | skb_tx_timestamp(skb); |
| 3084 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3085 | bna_txq_prod_indx_doorbell(tcb); |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3086 | smp_mb(); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3087 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3088 | return NETDEV_TX_OK; |
| 3089 | } |
| 3090 | |
| 3091 | /* |
| 3092 | * Used spin_lock to synchronize reading of stats structures, which |
| 3093 | * is written by BNA under the same lock. |
| 3094 | */ |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 3095 | static struct rtnl_link_stats64 * |
| 3096 | bnad_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3097 | { |
| 3098 | struct bnad *bnad = netdev_priv(netdev); |
| 3099 | unsigned long flags; |
| 3100 | |
| 3101 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3102 | |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 3103 | bnad_netdev_qstats_fill(bnad, stats); |
| 3104 | bnad_netdev_hwstats_fill(bnad, stats); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3105 | |
| 3106 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3107 | |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 3108 | return stats; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3109 | } |
| 3110 | |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3111 | static void |
| 3112 | bnad_set_rx_ucast_fltr(struct bnad *bnad) |
| 3113 | { |
| 3114 | struct net_device *netdev = bnad->netdev; |
| 3115 | int uc_count = netdev_uc_count(netdev); |
| 3116 | enum bna_cb_status ret; |
| 3117 | u8 *mac_list; |
| 3118 | struct netdev_hw_addr *ha; |
| 3119 | int entry; |
| 3120 | |
| 3121 | if (netdev_uc_empty(bnad->netdev)) { |
Ivan Vecera | 1f9883e | 2015-06-11 15:52:18 +0200 | [diff] [blame] | 3122 | bna_rx_ucast_listset(bnad->rx_info[0].rx, 0, NULL); |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3123 | return; |
| 3124 | } |
| 3125 | |
| 3126 | if (uc_count > bna_attr(&bnad->bna)->num_ucmac) |
| 3127 | goto mode_default; |
| 3128 | |
| 3129 | mac_list = kzalloc(uc_count * ETH_ALEN, GFP_ATOMIC); |
| 3130 | if (mac_list == NULL) |
| 3131 | goto mode_default; |
| 3132 | |
| 3133 | entry = 0; |
| 3134 | netdev_for_each_uc_addr(ha, netdev) { |
Ivan Vecera | e2f9ecf | 2015-06-11 15:52:13 +0200 | [diff] [blame] | 3135 | ether_addr_copy(&mac_list[entry * ETH_ALEN], &ha->addr[0]); |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3136 | entry++; |
| 3137 | } |
| 3138 | |
Ivan Vecera | 1f9883e | 2015-06-11 15:52:18 +0200 | [diff] [blame] | 3139 | ret = bna_rx_ucast_listset(bnad->rx_info[0].rx, entry, mac_list); |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3140 | kfree(mac_list); |
| 3141 | |
| 3142 | if (ret != BNA_CB_SUCCESS) |
| 3143 | goto mode_default; |
| 3144 | |
| 3145 | return; |
| 3146 | |
| 3147 | /* ucast packets not in UCAM are routed to default function */ |
| 3148 | mode_default: |
| 3149 | bnad->cfg_flags |= BNAD_CF_DEFAULT; |
Ivan Vecera | 1f9883e | 2015-06-11 15:52:18 +0200 | [diff] [blame] | 3150 | bna_rx_ucast_listset(bnad->rx_info[0].rx, 0, NULL); |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3151 | } |
| 3152 | |
| 3153 | static void |
| 3154 | bnad_set_rx_mcast_fltr(struct bnad *bnad) |
| 3155 | { |
| 3156 | struct net_device *netdev = bnad->netdev; |
| 3157 | int mc_count = netdev_mc_count(netdev); |
| 3158 | enum bna_cb_status ret; |
| 3159 | u8 *mac_list; |
| 3160 | |
| 3161 | if (netdev->flags & IFF_ALLMULTI) |
| 3162 | goto mode_allmulti; |
| 3163 | |
| 3164 | if (netdev_mc_empty(netdev)) |
| 3165 | return; |
| 3166 | |
| 3167 | if (mc_count > bna_attr(&bnad->bna)->num_mcmac) |
| 3168 | goto mode_allmulti; |
| 3169 | |
| 3170 | mac_list = kzalloc((mc_count + 1) * ETH_ALEN, GFP_ATOMIC); |
| 3171 | |
| 3172 | if (mac_list == NULL) |
| 3173 | goto mode_allmulti; |
| 3174 | |
Ivan Vecera | e2f9ecf | 2015-06-11 15:52:13 +0200 | [diff] [blame] | 3175 | ether_addr_copy(&mac_list[0], &bnad_bcast_addr[0]); |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3176 | |
| 3177 | /* copy rest of the MCAST addresses */ |
| 3178 | bnad_netdev_mc_list_get(netdev, mac_list); |
Ivan Vecera | 1f9883e | 2015-06-11 15:52:18 +0200 | [diff] [blame] | 3179 | ret = bna_rx_mcast_listset(bnad->rx_info[0].rx, mc_count + 1, mac_list); |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3180 | kfree(mac_list); |
| 3181 | |
| 3182 | if (ret != BNA_CB_SUCCESS) |
| 3183 | goto mode_allmulti; |
| 3184 | |
| 3185 | return; |
| 3186 | |
| 3187 | mode_allmulti: |
| 3188 | bnad->cfg_flags |= BNAD_CF_ALLMULTI; |
Ivan Vecera | 1f9883e | 2015-06-11 15:52:18 +0200 | [diff] [blame] | 3189 | bna_rx_mcast_delall(bnad->rx_info[0].rx); |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3190 | } |
| 3191 | |
Rasesh Mody | a2122d9 | 2011-08-30 15:27:43 +0000 | [diff] [blame] | 3192 | void |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3193 | bnad_set_rx_mode(struct net_device *netdev) |
| 3194 | { |
| 3195 | struct bnad *bnad = netdev_priv(netdev); |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3196 | enum bna_rxmode new_mode, mode_mask; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3197 | unsigned long flags; |
| 3198 | |
| 3199 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3200 | |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3201 | if (bnad->rx_info[0].rx == NULL) { |
| 3202 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3203 | return; |
| 3204 | } |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3205 | |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3206 | /* clear bnad flags to update it with new settings */ |
| 3207 | bnad->cfg_flags &= ~(BNAD_CF_PROMISC | BNAD_CF_DEFAULT | |
| 3208 | BNAD_CF_ALLMULTI); |
| 3209 | |
| 3210 | new_mode = 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3211 | if (netdev->flags & IFF_PROMISC) { |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3212 | new_mode |= BNAD_RXMODE_PROMISC_DEFAULT; |
| 3213 | bnad->cfg_flags |= BNAD_CF_PROMISC; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3214 | } else { |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3215 | bnad_set_rx_mcast_fltr(bnad); |
| 3216 | |
| 3217 | if (bnad->cfg_flags & BNAD_CF_ALLMULTI) |
| 3218 | new_mode |= BNA_RXMODE_ALLMULTI; |
| 3219 | |
| 3220 | bnad_set_rx_ucast_fltr(bnad); |
| 3221 | |
| 3222 | if (bnad->cfg_flags & BNAD_CF_DEFAULT) |
| 3223 | new_mode |= BNA_RXMODE_DEFAULT; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3224 | } |
| 3225 | |
Rasesh Mody | fe1624c | 2013-12-17 17:07:34 -0800 | [diff] [blame] | 3226 | mode_mask = BNA_RXMODE_PROMISC | BNA_RXMODE_DEFAULT | |
| 3227 | BNA_RXMODE_ALLMULTI; |
Ivan Vecera | 1f9883e | 2015-06-11 15:52:18 +0200 | [diff] [blame] | 3228 | bna_rx_mode_set(bnad->rx_info[0].rx, new_mode, mode_mask); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3229 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3230 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3231 | } |
| 3232 | |
| 3233 | /* |
| 3234 | * bna_lock is used to sync writes to netdev->addr |
| 3235 | * conf_lock cannot be used since this call may be made |
| 3236 | * in a non-blocking context. |
| 3237 | */ |
| 3238 | static int |
Ivan Vecera | e2f9ecf | 2015-06-11 15:52:13 +0200 | [diff] [blame] | 3239 | bnad_set_mac_address(struct net_device *netdev, void *addr) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3240 | { |
| 3241 | int err; |
| 3242 | struct bnad *bnad = netdev_priv(netdev); |
Ivan Vecera | e2f9ecf | 2015-06-11 15:52:13 +0200 | [diff] [blame] | 3243 | struct sockaddr *sa = (struct sockaddr *)addr; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3244 | unsigned long flags; |
| 3245 | |
| 3246 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3247 | |
| 3248 | err = bnad_mac_addr_set_locked(bnad, sa->sa_data); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3249 | if (!err) |
Ivan Vecera | e2f9ecf | 2015-06-11 15:52:13 +0200 | [diff] [blame] | 3250 | ether_addr_copy(netdev->dev_addr, sa->sa_data); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3251 | |
| 3252 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3253 | |
| 3254 | return err; |
| 3255 | } |
| 3256 | |
| 3257 | static int |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 3258 | bnad_mtu_set(struct bnad *bnad, int frame_size) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3259 | { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3260 | unsigned long flags; |
| 3261 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3262 | init_completion(&bnad->bnad_completions.mtu_comp); |
| 3263 | |
| 3264 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 3265 | 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] | 3266 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3267 | |
| 3268 | wait_for_completion(&bnad->bnad_completions.mtu_comp); |
| 3269 | |
| 3270 | return bnad->bnad_completions.mtu_comp_status; |
| 3271 | } |
| 3272 | |
| 3273 | static int |
| 3274 | bnad_change_mtu(struct net_device *netdev, int new_mtu) |
| 3275 | { |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 3276 | int err, mtu; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3277 | struct bnad *bnad = netdev_priv(netdev); |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 3278 | u32 rx_count = 0, frame, new_frame; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3279 | |
| 3280 | if (new_mtu + ETH_HLEN < ETH_ZLEN || new_mtu > BNAD_JUMBO_MTU) |
| 3281 | return -EINVAL; |
| 3282 | |
| 3283 | mutex_lock(&bnad->conf_mutex); |
| 3284 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 3285 | mtu = netdev->mtu; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3286 | netdev->mtu = new_mtu; |
| 3287 | |
Rasesh Mody | e29aa33 | 2013-12-17 17:07:35 -0800 | [diff] [blame] | 3288 | frame = BNAD_FRAME_SIZE(mtu); |
| 3289 | new_frame = BNAD_FRAME_SIZE(new_mtu); |
| 3290 | |
| 3291 | /* check if multi-buffer needs to be enabled */ |
| 3292 | if (BNAD_PCI_DEV_IS_CAT2(bnad) && |
| 3293 | netif_running(bnad->netdev)) { |
| 3294 | /* only when transition is over 4K */ |
| 3295 | if ((frame <= 4096 && new_frame > 4096) || |
| 3296 | (frame > 4096 && new_frame <= 4096)) |
| 3297 | rx_count = bnad_reinit_rx(bnad); |
| 3298 | } |
| 3299 | |
| 3300 | /* rx_count > 0 - new rx created |
| 3301 | * - Linux set err = 0 and return |
| 3302 | */ |
| 3303 | err = bnad_mtu_set(bnad, new_frame); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3304 | if (err) |
| 3305 | err = -EBUSY; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3306 | |
| 3307 | mutex_unlock(&bnad->conf_mutex); |
| 3308 | return err; |
| 3309 | } |
| 3310 | |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 3311 | static int |
Patrick McHardy | 80d5c36 | 2013-04-19 02:04:28 +0000 | [diff] [blame] | 3312 | 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] | 3313 | { |
| 3314 | struct bnad *bnad = netdev_priv(netdev); |
| 3315 | unsigned long flags; |
| 3316 | |
| 3317 | if (!bnad->rx_info[0].rx) |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 3318 | return 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3319 | |
| 3320 | mutex_lock(&bnad->conf_mutex); |
| 3321 | |
| 3322 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3323 | bna_rx_vlan_add(bnad->rx_info[0].rx, vid); |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 3324 | set_bit(vid, bnad->active_vlans); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3325 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3326 | |
| 3327 | mutex_unlock(&bnad->conf_mutex); |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 3328 | |
| 3329 | return 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3330 | } |
| 3331 | |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 3332 | static int |
Patrick McHardy | 80d5c36 | 2013-04-19 02:04:28 +0000 | [diff] [blame] | 3333 | 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] | 3334 | { |
| 3335 | struct bnad *bnad = netdev_priv(netdev); |
| 3336 | unsigned long flags; |
| 3337 | |
| 3338 | if (!bnad->rx_info[0].rx) |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 3339 | return 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3340 | |
| 3341 | mutex_lock(&bnad->conf_mutex); |
| 3342 | |
| 3343 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Jiri Pirko | f859d7c | 2011-07-20 04:54:14 +0000 | [diff] [blame] | 3344 | clear_bit(vid, bnad->active_vlans); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3345 | bna_rx_vlan_del(bnad->rx_info[0].rx, vid); |
| 3346 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3347 | |
| 3348 | mutex_unlock(&bnad->conf_mutex); |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 3349 | |
| 3350 | return 0; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3351 | } |
| 3352 | |
Ivan Vecera | 877767d | 2014-02-28 14:14:03 +0100 | [diff] [blame] | 3353 | static int bnad_set_features(struct net_device *dev, netdev_features_t features) |
| 3354 | { |
| 3355 | struct bnad *bnad = netdev_priv(dev); |
| 3356 | netdev_features_t changed = features ^ dev->features; |
| 3357 | |
| 3358 | if ((changed & NETIF_F_HW_VLAN_CTAG_RX) && netif_running(dev)) { |
| 3359 | unsigned long flags; |
| 3360 | |
| 3361 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3362 | |
| 3363 | if (features & NETIF_F_HW_VLAN_CTAG_RX) |
| 3364 | bna_rx_vlan_strip_enable(bnad->rx_info[0].rx); |
| 3365 | else |
| 3366 | bna_rx_vlan_strip_disable(bnad->rx_info[0].rx); |
| 3367 | |
| 3368 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3369 | } |
| 3370 | |
| 3371 | return 0; |
| 3372 | } |
| 3373 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3374 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 3375 | static void |
| 3376 | bnad_netpoll(struct net_device *netdev) |
| 3377 | { |
| 3378 | struct bnad *bnad = netdev_priv(netdev); |
| 3379 | struct bnad_rx_info *rx_info; |
| 3380 | struct bnad_rx_ctrl *rx_ctrl; |
| 3381 | u32 curr_mask; |
| 3382 | int i, j; |
| 3383 | |
| 3384 | if (!(bnad->cfg_flags & BNAD_CF_MSIX)) { |
| 3385 | bna_intx_disable(&bnad->bna, curr_mask); |
| 3386 | bnad_isr(bnad->pcidev->irq, netdev); |
| 3387 | bna_intx_enable(&bnad->bna, curr_mask); |
| 3388 | } else { |
Rasesh Mody | 19dbff9 | 2011-08-30 15:27:41 +0000 | [diff] [blame] | 3389 | /* |
| 3390 | * Tx processing may happen in sending context, so no need |
| 3391 | * to explicitly process completions here |
| 3392 | */ |
| 3393 | |
| 3394 | /* Rx processing */ |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3395 | for (i = 0; i < bnad->num_rx; i++) { |
| 3396 | rx_info = &bnad->rx_info[i]; |
| 3397 | if (!rx_info->rx) |
| 3398 | continue; |
| 3399 | for (j = 0; j < bnad->num_rxp_per_rx; j++) { |
| 3400 | rx_ctrl = &rx_info->rx_ctrl[j]; |
Rasesh Mody | 271e8b7 | 2011-08-30 15:27:40 +0000 | [diff] [blame] | 3401 | if (rx_ctrl->ccb) |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3402 | bnad_netif_rx_schedule_poll(bnad, |
| 3403 | rx_ctrl->ccb); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3404 | } |
| 3405 | } |
| 3406 | } |
| 3407 | } |
| 3408 | #endif |
| 3409 | |
| 3410 | static const struct net_device_ops bnad_netdev_ops = { |
| 3411 | .ndo_open = bnad_open, |
| 3412 | .ndo_stop = bnad_stop, |
| 3413 | .ndo_start_xmit = bnad_start_xmit, |
Eric Dumazet | 250e061 | 2010-09-02 12:45:02 -0700 | [diff] [blame] | 3414 | .ndo_get_stats64 = bnad_get_stats64, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3415 | .ndo_set_rx_mode = bnad_set_rx_mode, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3416 | .ndo_validate_addr = eth_validate_addr, |
| 3417 | .ndo_set_mac_address = bnad_set_mac_address, |
| 3418 | .ndo_change_mtu = bnad_change_mtu, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3419 | .ndo_vlan_rx_add_vid = bnad_vlan_rx_add_vid, |
| 3420 | .ndo_vlan_rx_kill_vid = bnad_vlan_rx_kill_vid, |
Ivan Vecera | 877767d | 2014-02-28 14:14:03 +0100 | [diff] [blame] | 3421 | .ndo_set_features = bnad_set_features, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3422 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 3423 | .ndo_poll_controller = bnad_netpoll |
| 3424 | #endif |
| 3425 | }; |
| 3426 | |
| 3427 | static void |
| 3428 | bnad_netdev_init(struct bnad *bnad, bool using_dac) |
| 3429 | { |
| 3430 | struct net_device *netdev = bnad->netdev; |
| 3431 | |
Michał Mirosław | e5ee20e | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 3432 | netdev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM | |
| 3433 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
Ivan Vecera | 877767d | 2014-02-28 14:14:03 +0100 | [diff] [blame] | 3434 | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_HW_VLAN_CTAG_TX | |
| 3435 | NETIF_F_HW_VLAN_CTAG_RX; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3436 | |
Michał Mirosław | e5ee20e | 2011-04-12 09:38:23 +0000 | [diff] [blame] | 3437 | netdev->vlan_features = NETIF_F_SG | NETIF_F_HIGHDMA | |
| 3438 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
| 3439 | NETIF_F_TSO | NETIF_F_TSO6; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3440 | |
Ivan Vecera | 877767d | 2014-02-28 14:14:03 +0100 | [diff] [blame] | 3441 | netdev->features |= netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3442 | |
| 3443 | if (using_dac) |
| 3444 | netdev->features |= NETIF_F_HIGHDMA; |
| 3445 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3446 | netdev->mem_start = bnad->mmio_start; |
| 3447 | netdev->mem_end = bnad->mmio_start + bnad->mmio_len - 1; |
| 3448 | |
| 3449 | netdev->netdev_ops = &bnad_netdev_ops; |
| 3450 | bnad_set_ethtool_ops(netdev); |
| 3451 | } |
| 3452 | |
| 3453 | /* |
| 3454 | * 1. Initialize the bnad structure |
| 3455 | * 2. Setup netdev pointer in pci_dev |
Jing Huang | d95d108 | 2012-04-04 05:43:48 +0000 | [diff] [blame] | 3456 | * 3. Initialize no. of TxQ & CQs & MSIX vectors |
| 3457 | * 4. Initialize work queue. |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3458 | */ |
| 3459 | static int |
| 3460 | bnad_init(struct bnad *bnad, |
| 3461 | struct pci_dev *pdev, struct net_device *netdev) |
| 3462 | { |
| 3463 | unsigned long flags; |
| 3464 | |
| 3465 | SET_NETDEV_DEV(netdev, &pdev->dev); |
| 3466 | pci_set_drvdata(pdev, netdev); |
| 3467 | |
| 3468 | bnad->netdev = netdev; |
| 3469 | bnad->pcidev = pdev; |
| 3470 | bnad->mmio_start = pci_resource_start(pdev, 0); |
| 3471 | bnad->mmio_len = pci_resource_len(pdev, 0); |
| 3472 | bnad->bar0 = ioremap_nocache(bnad->mmio_start, bnad->mmio_len); |
| 3473 | if (!bnad->bar0) { |
| 3474 | dev_err(&pdev->dev, "ioremap for bar0 failed\n"); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3475 | return -ENOMEM; |
| 3476 | } |
Ivan Vecera | ecc4678 | 2015-06-11 15:52:31 +0200 | [diff] [blame] | 3477 | dev_info(&pdev->dev, "bar0 mapped to %p, len %llu\n", bnad->bar0, |
| 3478 | (unsigned long long) bnad->mmio_len); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3479 | |
| 3480 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3481 | if (!bnad_msix_disable) |
| 3482 | bnad->cfg_flags = BNAD_CF_MSIX; |
| 3483 | |
| 3484 | bnad->cfg_flags |= BNAD_CF_DIM_ENABLED; |
| 3485 | |
| 3486 | bnad_q_num_init(bnad); |
| 3487 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3488 | |
| 3489 | bnad->msix_num = (bnad->num_tx * bnad->num_txq_per_tx) + |
| 3490 | (bnad->num_rx * bnad->num_rxp_per_rx) + |
| 3491 | BNAD_MAILBOX_MSIX_VECTORS; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3492 | |
| 3493 | bnad->txq_depth = BNAD_TXQ_DEPTH; |
| 3494 | bnad->rxq_depth = BNAD_RXQ_DEPTH; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3495 | |
| 3496 | bnad->tx_coalescing_timeo = BFI_TX_COALESCING_TIMEO; |
| 3497 | bnad->rx_coalescing_timeo = BFI_RX_COALESCING_TIMEO; |
| 3498 | |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 3499 | sprintf(bnad->wq_name, "%s_wq_%d", BNAD_NAME, bnad->id); |
| 3500 | bnad->work_q = create_singlethread_workqueue(bnad->wq_name); |
Wei Yongjun | ba21fc6 | 2013-05-13 04:26:06 +0000 | [diff] [blame] | 3501 | if (!bnad->work_q) { |
| 3502 | iounmap(bnad->bar0); |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 3503 | return -ENOMEM; |
Wei Yongjun | ba21fc6 | 2013-05-13 04:26:06 +0000 | [diff] [blame] | 3504 | } |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 3505 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3506 | return 0; |
| 3507 | } |
| 3508 | |
| 3509 | /* |
| 3510 | * Must be called after bnad_pci_uninit() |
| 3511 | * so that iounmap() and pci_set_drvdata(NULL) |
| 3512 | * happens only after PCI uninitialization. |
| 3513 | */ |
| 3514 | static void |
| 3515 | bnad_uninit(struct bnad *bnad) |
| 3516 | { |
Jing Huang | 01b54b1 | 2012-04-04 05:43:18 +0000 | [diff] [blame] | 3517 | if (bnad->work_q) { |
| 3518 | flush_workqueue(bnad->work_q); |
| 3519 | destroy_workqueue(bnad->work_q); |
| 3520 | bnad->work_q = NULL; |
| 3521 | } |
| 3522 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3523 | if (bnad->bar0) |
| 3524 | iounmap(bnad->bar0); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3525 | } |
| 3526 | |
| 3527 | /* |
| 3528 | * Initialize locks |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3529 | a) Per ioceth mutes used for serializing configuration |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3530 | changes from OS interface |
| 3531 | b) spin lock used to protect bna state machine |
| 3532 | */ |
| 3533 | static void |
| 3534 | bnad_lock_init(struct bnad *bnad) |
| 3535 | { |
| 3536 | spin_lock_init(&bnad->bna_lock); |
| 3537 | mutex_init(&bnad->conf_mutex); |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 3538 | mutex_init(&bnad_list_mutex); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3539 | } |
| 3540 | |
| 3541 | static void |
| 3542 | bnad_lock_uninit(struct bnad *bnad) |
| 3543 | { |
| 3544 | mutex_destroy(&bnad->conf_mutex); |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 3545 | mutex_destroy(&bnad_list_mutex); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3546 | } |
| 3547 | |
| 3548 | /* PCI Initialization */ |
| 3549 | static int |
| 3550 | bnad_pci_init(struct bnad *bnad, |
| 3551 | struct pci_dev *pdev, bool *using_dac) |
| 3552 | { |
| 3553 | int err; |
| 3554 | |
| 3555 | err = pci_enable_device(pdev); |
| 3556 | if (err) |
| 3557 | return err; |
| 3558 | err = pci_request_regions(pdev, BNAD_NAME); |
| 3559 | if (err) |
| 3560 | goto disable_device; |
Russell King | 3e54807 | 2013-06-10 12:16:54 +0100 | [diff] [blame] | 3561 | if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) { |
Rusty Russell | 3db1cd5 | 2011-12-19 13:56:45 +0000 | [diff] [blame] | 3562 | *using_dac = true; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3563 | } else { |
Russell King | 3e54807 | 2013-06-10 12:16:54 +0100 | [diff] [blame] | 3564 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
| 3565 | if (err) |
| 3566 | goto release_regions; |
Rusty Russell | 3db1cd5 | 2011-12-19 13:56:45 +0000 | [diff] [blame] | 3567 | *using_dac = false; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3568 | } |
| 3569 | pci_set_master(pdev); |
| 3570 | return 0; |
| 3571 | |
| 3572 | release_regions: |
| 3573 | pci_release_regions(pdev); |
| 3574 | disable_device: |
| 3575 | pci_disable_device(pdev); |
| 3576 | |
| 3577 | return err; |
| 3578 | } |
| 3579 | |
| 3580 | static void |
| 3581 | bnad_pci_uninit(struct pci_dev *pdev) |
| 3582 | { |
| 3583 | pci_release_regions(pdev); |
| 3584 | pci_disable_device(pdev); |
| 3585 | } |
| 3586 | |
Bill Pemberton | c4eef18 | 2012-12-03 09:23:00 -0500 | [diff] [blame] | 3587 | static int |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3588 | bnad_pci_probe(struct pci_dev *pdev, |
| 3589 | const struct pci_device_id *pcidev_id) |
| 3590 | { |
Rasesh Mody | 3caa1e95 | 2011-08-30 15:27:42 +0000 | [diff] [blame] | 3591 | bool using_dac; |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 3592 | int err; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3593 | struct bnad *bnad; |
| 3594 | struct bna *bna; |
| 3595 | struct net_device *netdev; |
| 3596 | struct bfa_pcidev pcidev_info; |
| 3597 | unsigned long flags; |
| 3598 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3599 | mutex_lock(&bnad_fwimg_mutex); |
| 3600 | if (!cna_get_firmware_buf(pdev)) { |
| 3601 | mutex_unlock(&bnad_fwimg_mutex); |
Ivan Vecera | ecc4678 | 2015-06-11 15:52:31 +0200 | [diff] [blame] | 3602 | dev_err(&pdev->dev, "failed to load firmware image!\n"); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3603 | return -ENODEV; |
| 3604 | } |
| 3605 | mutex_unlock(&bnad_fwimg_mutex); |
| 3606 | |
| 3607 | /* |
| 3608 | * Allocates sizeof(struct net_device + struct bnad) |
| 3609 | * bnad = netdev->priv |
| 3610 | */ |
| 3611 | netdev = alloc_etherdev(sizeof(struct bnad)); |
| 3612 | if (!netdev) { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3613 | err = -ENOMEM; |
| 3614 | return err; |
| 3615 | } |
| 3616 | bnad = netdev_priv(netdev); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3617 | bnad_lock_init(bnad); |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 3618 | bnad_add_to_list(bnad); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3619 | |
| 3620 | mutex_lock(&bnad->conf_mutex); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3621 | /* |
| 3622 | * PCI initialization |
Rasesh Mody | 0120b99 | 2011-07-22 08:07:41 +0000 | [diff] [blame] | 3623 | * Output : using_dac = 1 for 64 bit DMA |
Rasesh Mody | be7fa32 | 2010-12-23 21:45:01 +0000 | [diff] [blame] | 3624 | * = 0 for 32 bit DMA |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3625 | */ |
David S. Miller | e905ed5 | 2012-09-27 18:31:58 -0400 | [diff] [blame] | 3626 | using_dac = false; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3627 | err = bnad_pci_init(bnad, pdev, &using_dac); |
| 3628 | if (err) |
Dan Carpenter | 44861f4 | 2011-08-24 01:29:22 +0000 | [diff] [blame] | 3629 | goto unlock_mutex; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3630 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3631 | /* |
| 3632 | * Initialize bnad structure |
| 3633 | * Setup relation between pci_dev & netdev |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3634 | */ |
| 3635 | err = bnad_init(bnad, pdev, netdev); |
| 3636 | if (err) |
| 3637 | goto pci_uninit; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3638 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3639 | /* Initialize netdev structure, set up ethtool ops */ |
| 3640 | bnad_netdev_init(bnad, using_dac); |
| 3641 | |
Rasesh Mody | 815f41e | 2010-12-23 21:45:03 +0000 | [diff] [blame] | 3642 | /* Set link to down state */ |
| 3643 | netif_carrier_off(netdev); |
| 3644 | |
Krishna Gudipati | 7afc5db | 2011-12-22 13:30:19 +0000 | [diff] [blame] | 3645 | /* Setup the debugfs node for this bfad */ |
| 3646 | if (bna_debugfs_enable) |
| 3647 | bnad_debugfs_init(bnad); |
| 3648 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3649 | /* Get resource requirement form bna */ |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3650 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3651 | bna_res_req(&bnad->res_info[0]); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3652 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3653 | |
| 3654 | /* Allocate resources from bna */ |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3655 | 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] | 3656 | if (err) |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3657 | goto drv_uninit; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3658 | |
| 3659 | bna = &bnad->bna; |
| 3660 | |
| 3661 | /* Setup pcidev_info for bna_init() */ |
| 3662 | pcidev_info.pci_slot = PCI_SLOT(bnad->pcidev->devfn); |
| 3663 | pcidev_info.pci_func = PCI_FUNC(bnad->pcidev->devfn); |
| 3664 | pcidev_info.device_id = bnad->pcidev->device; |
| 3665 | pcidev_info.pci_bar_kva = bnad->bar0; |
| 3666 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3667 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3668 | bna_init(bna, bnad, &pcidev_info, &bnad->res_info[0]); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3669 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3670 | |
| 3671 | bnad->stats.bna_stats = &bna->stats; |
| 3672 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3673 | bnad_enable_msix(bnad); |
| 3674 | err = bnad_mbox_irq_alloc(bnad); |
| 3675 | if (err) |
| 3676 | goto res_free; |
| 3677 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3678 | /* Set up timers */ |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3679 | setup_timer(&bnad->bna.ioceth.ioc.ioc_timer, bnad_ioc_timeout, |
Ivan Vecera | ebb56d3 | 2015-06-17 18:41:58 +0200 | [diff] [blame] | 3680 | (unsigned long)bnad); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3681 | setup_timer(&bnad->bna.ioceth.ioc.hb_timer, bnad_ioc_hb_check, |
Ivan Vecera | ebb56d3 | 2015-06-17 18:41:58 +0200 | [diff] [blame] | 3682 | (unsigned long)bnad); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3683 | setup_timer(&bnad->bna.ioceth.ioc.iocpf_timer, bnad_iocpf_timeout, |
Ivan Vecera | ebb56d3 | 2015-06-17 18:41:58 +0200 | [diff] [blame] | 3684 | (unsigned long)bnad); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3685 | setup_timer(&bnad->bna.ioceth.ioc.sem_timer, bnad_iocpf_sem_timeout, |
Ivan Vecera | ebb56d3 | 2015-06-17 18:41:58 +0200 | [diff] [blame] | 3686 | (unsigned long)bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3687 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3688 | /* |
| 3689 | * Start the chip |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3690 | * If the call back comes with error, we bail out. |
| 3691 | * This is a catastrophic error. |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3692 | */ |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3693 | err = bnad_ioceth_enable(bnad); |
| 3694 | if (err) { |
Ivan Vecera | ecc4678 | 2015-06-11 15:52:31 +0200 | [diff] [blame] | 3695 | dev_err(&pdev->dev, "initialization failed err=%d\n", err); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3696 | goto probe_success; |
| 3697 | } |
| 3698 | |
| 3699 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3700 | if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) || |
| 3701 | bna_num_rxp_set(bna, BNAD_NUM_RXP + 1)) { |
| 3702 | bnad_q_num_adjust(bnad, bna_attr(bna)->num_txq - 1, |
| 3703 | bna_attr(bna)->num_rxp - 1); |
| 3704 | if (bna_num_txq_set(bna, BNAD_NUM_TXQ + 1) || |
| 3705 | bna_num_rxp_set(bna, BNAD_NUM_RXP + 1)) |
| 3706 | err = -EIO; |
| 3707 | } |
Rasesh Mody | 3caa1e95 | 2011-08-30 15:27:42 +0000 | [diff] [blame] | 3708 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3709 | if (err) |
| 3710 | goto disable_ioceth; |
| 3711 | |
| 3712 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3713 | bna_mod_res_req(&bnad->bna, &bnad->mod_res_info[0]); |
| 3714 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3715 | |
| 3716 | 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] | 3717 | if (err) { |
| 3718 | err = -EIO; |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3719 | goto disable_ioceth; |
Rasesh Mody | 0caa9aa | 2011-08-30 15:27:38 +0000 | [diff] [blame] | 3720 | } |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3721 | |
| 3722 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3723 | bna_mod_init(&bnad->bna, &bnad->mod_res_info[0]); |
| 3724 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3725 | |
| 3726 | /* Get the burnt-in mac */ |
| 3727 | spin_lock_irqsave(&bnad->bna_lock, flags); |
Ivan Vecera | d6b3059 | 2015-06-11 15:52:14 +0200 | [diff] [blame] | 3728 | bna_enet_perm_mac_get(&bna->enet, bnad->perm_addr); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3729 | bnad_set_netdev_perm_addr(bnad); |
| 3730 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
| 3731 | |
Rasesh Mody | 0caa9aa | 2011-08-30 15:27:38 +0000 | [diff] [blame] | 3732 | mutex_unlock(&bnad->conf_mutex); |
| 3733 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3734 | /* Finally, reguister with net_device layer */ |
| 3735 | err = register_netdev(netdev); |
| 3736 | if (err) { |
Ivan Vecera | ecc4678 | 2015-06-11 15:52:31 +0200 | [diff] [blame] | 3737 | dev_err(&pdev->dev, "registering net device failed\n"); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3738 | goto probe_uninit; |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3739 | } |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3740 | set_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3741 | |
Rasesh Mody | 0caa9aa | 2011-08-30 15:27:38 +0000 | [diff] [blame] | 3742 | return 0; |
| 3743 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3744 | probe_success: |
| 3745 | mutex_unlock(&bnad->conf_mutex); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3746 | return 0; |
| 3747 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3748 | probe_uninit: |
Rasesh Mody | 3fc7237 | 2011-09-21 20:55:41 -0400 | [diff] [blame] | 3749 | mutex_lock(&bnad->conf_mutex); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3750 | bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX); |
| 3751 | disable_ioceth: |
| 3752 | bnad_ioceth_disable(bnad); |
| 3753 | del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer); |
| 3754 | del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer); |
| 3755 | del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3756 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3757 | bna_uninit(bna); |
| 3758 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3759 | bnad_mbox_irq_free(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3760 | bnad_disable_msix(bnad); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3761 | res_free: |
| 3762 | bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX); |
| 3763 | drv_uninit: |
Krishna Gudipati | 7afc5db | 2011-12-22 13:30:19 +0000 | [diff] [blame] | 3764 | /* Remove the debugfs node for this bnad */ |
| 3765 | kfree(bnad->regdata); |
| 3766 | bnad_debugfs_uninit(bnad); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3767 | bnad_uninit(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3768 | pci_uninit: |
| 3769 | bnad_pci_uninit(pdev); |
Dan Carpenter | 44861f4 | 2011-08-24 01:29:22 +0000 | [diff] [blame] | 3770 | unlock_mutex: |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3771 | mutex_unlock(&bnad->conf_mutex); |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 3772 | bnad_remove_from_list(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3773 | bnad_lock_uninit(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3774 | free_netdev(netdev); |
| 3775 | return err; |
| 3776 | } |
| 3777 | |
Bill Pemberton | c4eef18 | 2012-12-03 09:23:00 -0500 | [diff] [blame] | 3778 | static void |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3779 | bnad_pci_remove(struct pci_dev *pdev) |
| 3780 | { |
| 3781 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 3782 | struct bnad *bnad; |
| 3783 | struct bna *bna; |
| 3784 | unsigned long flags; |
| 3785 | |
| 3786 | if (!netdev) |
| 3787 | return; |
| 3788 | |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3789 | bnad = netdev_priv(netdev); |
| 3790 | bna = &bnad->bna; |
| 3791 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3792 | if (test_and_clear_bit(BNAD_RF_NETDEV_REGISTERED, &bnad->run_flags)) |
| 3793 | unregister_netdev(netdev); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3794 | |
| 3795 | mutex_lock(&bnad->conf_mutex); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3796 | bnad_ioceth_disable(bnad); |
| 3797 | del_timer_sync(&bnad->bna.ioceth.ioc.ioc_timer); |
| 3798 | del_timer_sync(&bnad->bna.ioceth.ioc.sem_timer); |
| 3799 | del_timer_sync(&bnad->bna.ioceth.ioc.hb_timer); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3800 | spin_lock_irqsave(&bnad->bna_lock, flags); |
| 3801 | bna_uninit(bna); |
| 3802 | spin_unlock_irqrestore(&bnad->bna_lock, flags); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3803 | |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3804 | bnad_res_free(bnad, &bnad->mod_res_info[0], BNA_MOD_RES_T_MAX); |
| 3805 | bnad_res_free(bnad, &bnad->res_info[0], BNA_RES_T_MAX); |
| 3806 | bnad_mbox_irq_free(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3807 | bnad_disable_msix(bnad); |
| 3808 | bnad_pci_uninit(pdev); |
Rasesh Mody | 078086f | 2011-08-08 16:21:39 +0000 | [diff] [blame] | 3809 | mutex_unlock(&bnad->conf_mutex); |
Krishna Gudipati | 72a9730 | 2011-12-22 13:29:45 +0000 | [diff] [blame] | 3810 | bnad_remove_from_list(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3811 | bnad_lock_uninit(bnad); |
Krishna Gudipati | 7afc5db | 2011-12-22 13:30:19 +0000 | [diff] [blame] | 3812 | /* Remove the debugfs node for this bnad */ |
| 3813 | kfree(bnad->regdata); |
| 3814 | bnad_debugfs_uninit(bnad); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3815 | bnad_uninit(bnad); |
| 3816 | free_netdev(netdev); |
| 3817 | } |
| 3818 | |
Benoit Taine | 9baa3c3 | 2014-08-08 15:56:03 +0200 | [diff] [blame] | 3819 | static const struct pci_device_id bnad_pci_id_table[] = { |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3820 | { |
| 3821 | PCI_DEVICE(PCI_VENDOR_ID_BROCADE, |
| 3822 | PCI_DEVICE_ID_BROCADE_CT), |
| 3823 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, |
| 3824 | .class_mask = 0xffff00 |
Rasesh Mody | 586b281 | 2011-09-27 10:39:08 +0000 | [diff] [blame] | 3825 | }, |
| 3826 | { |
| 3827 | PCI_DEVICE(PCI_VENDOR_ID_BROCADE, |
| 3828 | BFA_PCI_DEVICE_ID_CT2), |
| 3829 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, |
| 3830 | .class_mask = 0xffff00 |
| 3831 | }, |
| 3832 | {0, }, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3833 | }; |
| 3834 | |
| 3835 | MODULE_DEVICE_TABLE(pci, bnad_pci_id_table); |
| 3836 | |
| 3837 | static struct pci_driver bnad_pci_driver = { |
| 3838 | .name = BNAD_NAME, |
| 3839 | .id_table = bnad_pci_id_table, |
| 3840 | .probe = bnad_pci_probe, |
Bill Pemberton | c4eef18 | 2012-12-03 09:23:00 -0500 | [diff] [blame] | 3841 | .remove = bnad_pci_remove, |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3842 | }; |
| 3843 | |
| 3844 | static int __init |
| 3845 | bnad_module_init(void) |
| 3846 | { |
| 3847 | int err; |
| 3848 | |
Ivan Vecera | ecc4678 | 2015-06-11 15:52:31 +0200 | [diff] [blame] | 3849 | pr_info("bna: QLogic BR-series 10G Ethernet driver - version: %s\n", |
| 3850 | BNAD_VERSION); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3851 | |
Rasesh Mody | 8a89142 | 2010-08-25 23:00:27 -0700 | [diff] [blame] | 3852 | bfa_nw_ioc_auto_recover(bnad_ioc_auto_recover); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3853 | |
| 3854 | err = pci_register_driver(&bnad_pci_driver); |
| 3855 | if (err < 0) { |
Ivan Vecera | ecc4678 | 2015-06-11 15:52:31 +0200 | [diff] [blame] | 3856 | pr_err("bna: PCI driver registration failed err=%d\n", err); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3857 | return err; |
| 3858 | } |
| 3859 | |
| 3860 | return 0; |
| 3861 | } |
| 3862 | |
| 3863 | static void __exit |
| 3864 | bnad_module_exit(void) |
| 3865 | { |
| 3866 | pci_unregister_driver(&bnad_pci_driver); |
Jesper Juhl | 294ca86 | 2012-04-09 22:50:24 +0200 | [diff] [blame] | 3867 | release_firmware(bfi_fw); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3868 | } |
| 3869 | |
| 3870 | module_init(bnad_module_init); |
| 3871 | module_exit(bnad_module_exit); |
| 3872 | |
| 3873 | MODULE_AUTHOR("Brocade"); |
| 3874 | MODULE_LICENSE("GPL"); |
Rasesh Mody | 2732ba5 | 2015-02-19 16:02:31 -0500 | [diff] [blame] | 3875 | MODULE_DESCRIPTION("QLogic BR-series 10G PCIe Ethernet driver"); |
Rasesh Mody | 8b230ed | 2010-08-23 20:24:12 -0700 | [diff] [blame] | 3876 | MODULE_VERSION(BNAD_VERSION); |
| 3877 | MODULE_FIRMWARE(CNA_FW_FILE_CT); |
Rasesh Mody | 1bf9fd70 | 2011-09-27 10:39:07 +0000 | [diff] [blame] | 3878 | MODULE_FIRMWARE(CNA_FW_FILE_CT2); |