1 /* 2 * Copyright (c) 2007, 2014 Mellanox Technologies. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 * 32 */ 33 34 #include <linux/etherdevice.h> 35 #include <linux/delay.h> 36 #include <linux/slab.h> 37 #ifdef CONFIG_NET_RX_BUSY_POLL 38 #include <net/busy_poll.h> 39 #endif 40 41 #include <linux/list.h> 42 #include <linux/if_ether.h> 43 44 #include <dev/mlx4/driver.h> 45 #include <dev/mlx4/device.h> 46 #include <dev/mlx4/cmd.h> 47 #include <dev/mlx4/cq.h> 48 49 #include <sys/sockio.h> 50 #include <sys/sysctl.h> 51 52 #include "en.h" 53 #include "en_port.h" 54 55 static void mlx4_en_sysctl_stat(struct mlx4_en_priv *priv); 56 static void mlx4_en_sysctl_conf(struct mlx4_en_priv *priv); 57 58 #ifdef CONFIG_NET_RX_BUSY_POLL 59 /* must be called with local_bh_disable()d */ 60 static int mlx4_en_low_latency_recv(struct napi_struct *napi) 61 { 62 struct mlx4_en_cq *cq = container_of(napi, struct mlx4_en_cq, napi); 63 struct net_device *dev = cq->dev; 64 struct mlx4_en_priv *priv = netdev_priv(dev); 65 struct mlx4_en_rx_ring *rx_ring = priv->rx_ring[cq->ring]; 66 int done; 67 68 if (!priv->port_up) 69 return LL_FLUSH_FAILED; 70 71 if (!mlx4_en_cq_lock_poll(cq)) 72 return LL_FLUSH_BUSY; 73 74 done = mlx4_en_process_rx_cq(dev, cq, 4); 75 #ifdef LL_EXTENDED_STATS 76 if (done) 77 rx_ring->cleaned += done; 78 else 79 rx_ring->misses++; 80 #endif 81 82 mlx4_en_cq_unlock_poll(cq); 83 84 return done; 85 } 86 #endif /* CONFIG_NET_RX_BUSY_POLL */ 87 88 #ifdef CONFIG_RFS_ACCEL 89 90 struct mlx4_en_filter { 91 struct list_head next; 92 struct work_struct work; 93 94 u8 ip_proto; 95 __be32 src_ip; 96 __be32 dst_ip; 97 __be16 src_port; 98 __be16 dst_port; 99 100 int rxq_index; 101 struct mlx4_en_priv *priv; 102 u32 flow_id; /* RFS infrastructure id */ 103 int id; /* mlx4_en driver id */ 104 u64 reg_id; /* Flow steering API id */ 105 u8 activated; /* Used to prevent expiry before filter 106 * is attached 107 */ 108 struct hlist_node filter_chain; 109 }; 110 111 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv); 112 113 static enum mlx4_net_trans_rule_id mlx4_ip_proto_to_trans_rule_id(u8 ip_proto) 114 { 115 switch (ip_proto) { 116 case IPPROTO_UDP: 117 return MLX4_NET_TRANS_RULE_ID_UDP; 118 case IPPROTO_TCP: 119 return MLX4_NET_TRANS_RULE_ID_TCP; 120 default: 121 return -EPROTONOSUPPORT; 122 } 123 }; 124 125 static void mlx4_en_filter_work(struct work_struct *work) 126 { 127 struct mlx4_en_filter *filter = container_of(work, 128 struct mlx4_en_filter, 129 work); 130 struct mlx4_en_priv *priv = filter->priv; 131 struct mlx4_spec_list spec_tcp_udp = { 132 .id = mlx4_ip_proto_to_trans_rule_id(filter->ip_proto), 133 { 134 .tcp_udp = { 135 .dst_port = filter->dst_port, 136 .dst_port_msk = (__force __be16)-1, 137 .src_port = filter->src_port, 138 .src_port_msk = (__force __be16)-1, 139 }, 140 }, 141 }; 142 struct mlx4_spec_list spec_ip = { 143 .id = MLX4_NET_TRANS_RULE_ID_IPV4, 144 { 145 .ipv4 = { 146 .dst_ip = filter->dst_ip, 147 .dst_ip_msk = (__force __be32)-1, 148 .src_ip = filter->src_ip, 149 .src_ip_msk = (__force __be32)-1, 150 }, 151 }, 152 }; 153 struct mlx4_spec_list spec_eth = { 154 .id = MLX4_NET_TRANS_RULE_ID_ETH, 155 }; 156 struct mlx4_net_trans_rule rule = { 157 .list = LIST_HEAD_INIT(rule.list), 158 .queue_mode = MLX4_NET_TRANS_Q_LIFO, 159 .exclusive = 1, 160 .allow_loopback = 1, 161 .promisc_mode = MLX4_FS_REGULAR, 162 .port = priv->port, 163 .priority = MLX4_DOMAIN_RFS, 164 }; 165 int rc; 166 __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16); 167 168 if (spec_tcp_udp.id < 0) { 169 en_warn(priv, "RFS: ignoring unsupported ip protocol (%d)\n", 170 filter->ip_proto); 171 goto ignore; 172 } 173 list_add_tail(&spec_eth.list, &rule.list); 174 list_add_tail(&spec_ip.list, &rule.list); 175 list_add_tail(&spec_tcp_udp.list, &rule.list); 176 177 rule.qpn = priv->rss_map.qps[filter->rxq_index].qpn; 178 memcpy(spec_eth.eth.dst_mac, priv->dev->dev_addr, ETH_ALEN); 179 memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN); 180 181 filter->activated = 0; 182 183 if (filter->reg_id) { 184 rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id); 185 if (rc && rc != -ENOENT) 186 en_err(priv, "Error detaching flow. rc = %d\n", rc); 187 } 188 189 rc = mlx4_flow_attach(priv->mdev->dev, &rule, &filter->reg_id); 190 if (rc) 191 en_err(priv, "Error attaching flow. err = %d\n", rc); 192 193 ignore: 194 mlx4_en_filter_rfs_expire(priv); 195 196 filter->activated = 1; 197 } 198 199 static inline struct hlist_head * 200 filter_hash_bucket(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip, 201 __be16 src_port, __be16 dst_port) 202 { 203 unsigned long l; 204 int bucket_idx; 205 206 l = (__force unsigned long)src_port | 207 ((__force unsigned long)dst_port << 2); 208 l ^= (__force unsigned long)(src_ip ^ dst_ip); 209 210 bucket_idx = hash_long(l, MLX4_EN_FILTER_HASH_SHIFT); 211 212 return &priv->filter_hash[bucket_idx]; 213 } 214 215 static struct mlx4_en_filter * 216 mlx4_en_filter_alloc(struct mlx4_en_priv *priv, int rxq_index, __be32 src_ip, 217 __be32 dst_ip, u8 ip_proto, __be16 src_port, 218 __be16 dst_port, u32 flow_id) 219 { 220 struct mlx4_en_filter *filter = NULL; 221 222 filter = kzalloc(sizeof(struct mlx4_en_filter), GFP_ATOMIC); 223 if (!filter) 224 return NULL; 225 226 filter->priv = priv; 227 filter->rxq_index = rxq_index; 228 INIT_WORK(&filter->work, mlx4_en_filter_work); 229 230 filter->src_ip = src_ip; 231 filter->dst_ip = dst_ip; 232 filter->ip_proto = ip_proto; 233 filter->src_port = src_port; 234 filter->dst_port = dst_port; 235 236 filter->flow_id = flow_id; 237 238 filter->id = priv->last_filter_id++ % RPS_NO_FILTER; 239 240 list_add_tail(&filter->next, &priv->filters); 241 hlist_add_head(&filter->filter_chain, 242 filter_hash_bucket(priv, src_ip, dst_ip, src_port, 243 dst_port)); 244 245 return filter; 246 } 247 248 static void mlx4_en_filter_free(struct mlx4_en_filter *filter) 249 { 250 struct mlx4_en_priv *priv = filter->priv; 251 int rc; 252 253 list_del(&filter->next); 254 255 rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id); 256 if (rc && rc != -ENOENT) 257 en_err(priv, "Error detaching flow. rc = %d\n", rc); 258 259 kfree(filter); 260 } 261 262 static inline struct mlx4_en_filter * 263 mlx4_en_filter_find(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip, 264 u8 ip_proto, __be16 src_port, __be16 dst_port) 265 { 266 struct mlx4_en_filter *filter; 267 struct mlx4_en_filter *ret = NULL; 268 269 hlist_for_each_entry(filter, 270 filter_hash_bucket(priv, src_ip, dst_ip, 271 src_port, dst_port), 272 filter_chain) { 273 if (filter->src_ip == src_ip && 274 filter->dst_ip == dst_ip && 275 filter->ip_proto == ip_proto && 276 filter->src_port == src_port && 277 filter->dst_port == dst_port) { 278 ret = filter; 279 break; 280 } 281 } 282 283 return ret; 284 } 285 286 static int 287 mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb, 288 u16 rxq_index, u32 flow_id) 289 { 290 struct mlx4_en_priv *priv = netdev_priv(net_dev); 291 struct mlx4_en_filter *filter; 292 const struct iphdr *ip; 293 const __be16 *ports; 294 u8 ip_proto; 295 __be32 src_ip; 296 __be32 dst_ip; 297 __be16 src_port; 298 __be16 dst_port; 299 int nhoff = skb_network_offset(skb); 300 int ret = 0; 301 302 if (skb->protocol != htons(ETH_P_IP)) 303 return -EPROTONOSUPPORT; 304 305 ip = (const struct iphdr *)(skb->data + nhoff); 306 if (ip_is_fragment(ip)) 307 return -EPROTONOSUPPORT; 308 309 if ((ip->protocol != IPPROTO_TCP) && (ip->protocol != IPPROTO_UDP)) 310 return -EPROTONOSUPPORT; 311 ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl); 312 313 ip_proto = ip->protocol; 314 src_ip = ip->saddr; 315 dst_ip = ip->daddr; 316 src_port = ports[0]; 317 dst_port = ports[1]; 318 319 spin_lock_bh(&priv->filters_lock); 320 filter = mlx4_en_filter_find(priv, src_ip, dst_ip, ip_proto, 321 src_port, dst_port); 322 if (filter) { 323 if (filter->rxq_index == rxq_index) 324 goto out; 325 326 filter->rxq_index = rxq_index; 327 } else { 328 filter = mlx4_en_filter_alloc(priv, rxq_index, 329 src_ip, dst_ip, ip_proto, 330 src_port, dst_port, flow_id); 331 if (!filter) { 332 ret = -ENOMEM; 333 goto err; 334 } 335 } 336 337 queue_work(priv->mdev->workqueue, &filter->work); 338 339 out: 340 ret = filter->id; 341 err: 342 spin_unlock_bh(&priv->filters_lock); 343 344 return ret; 345 } 346 347 void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv, 348 struct mlx4_en_rx_ring *rx_ring) 349 { 350 struct mlx4_en_filter *filter, *tmp; 351 LIST_HEAD(del_list); 352 353 spin_lock_bh(&priv->filters_lock); 354 list_for_each_entry_safe(filter, tmp, &priv->filters, next) { 355 list_move(&filter->next, &del_list); 356 hlist_del(&filter->filter_chain); 357 } 358 spin_unlock_bh(&priv->filters_lock); 359 360 list_for_each_entry_safe(filter, tmp, &del_list, next) { 361 cancel_work_sync(&filter->work); 362 mlx4_en_filter_free(filter); 363 } 364 } 365 366 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv) 367 { 368 struct mlx4_en_filter *filter = NULL, *tmp, *last_filter = NULL; 369 LIST_HEAD(del_list); 370 int i = 0; 371 372 spin_lock_bh(&priv->filters_lock); 373 list_for_each_entry_safe(filter, tmp, &priv->filters, next) { 374 if (i > MLX4_EN_FILTER_EXPIRY_QUOTA) 375 break; 376 377 if (filter->activated && 378 !work_pending(&filter->work) && 379 rps_may_expire_flow(priv->dev, 380 filter->rxq_index, filter->flow_id, 381 filter->id)) { 382 list_move(&filter->next, &del_list); 383 hlist_del(&filter->filter_chain); 384 } else 385 last_filter = filter; 386 387 i++; 388 } 389 390 if (last_filter && (&last_filter->next != priv->filters.next)) 391 list_move(&priv->filters, &last_filter->next); 392 393 spin_unlock_bh(&priv->filters_lock); 394 395 list_for_each_entry_safe(filter, tmp, &del_list, next) 396 mlx4_en_filter_free(filter); 397 } 398 #endif 399 400 static void mlx4_en_vlan_rx_add_vid(void *arg, struct net_device *dev, u16 vid) 401 { 402 struct mlx4_en_priv *priv = netdev_priv(dev); 403 struct mlx4_en_dev *mdev = priv->mdev; 404 int err; 405 int idx; 406 407 if (arg != priv) 408 return; 409 410 en_dbg(HW, priv, "adding VLAN:%d\n", vid); 411 412 set_bit(vid, priv->active_vlans); 413 414 /* Add VID to port VLAN filter */ 415 mutex_lock(&mdev->state_lock); 416 if (mdev->device_up && priv->port_up) { 417 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); 418 if (err) 419 en_err(priv, "Failed configuring VLAN filter\n"); 420 } 421 if (mlx4_register_vlan(mdev->dev, priv->port, vid, &idx)) 422 en_dbg(HW, priv, "failed adding vlan %d\n", vid); 423 mutex_unlock(&mdev->state_lock); 424 425 } 426 427 static void mlx4_en_vlan_rx_kill_vid(void *arg, struct net_device *dev, u16 vid) 428 { 429 struct mlx4_en_priv *priv = netdev_priv(dev); 430 struct mlx4_en_dev *mdev = priv->mdev; 431 int err; 432 433 if (arg != priv) 434 return; 435 436 en_dbg(HW, priv, "Killing VID:%d\n", vid); 437 438 clear_bit(vid, priv->active_vlans); 439 440 /* Remove VID from port VLAN filter */ 441 mutex_lock(&mdev->state_lock); 442 mlx4_unregister_vlan(mdev->dev, priv->port, vid); 443 444 if (mdev->device_up && priv->port_up) { 445 err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); 446 if (err) 447 en_err(priv, "Failed configuring VLAN filter\n"); 448 } 449 mutex_unlock(&mdev->state_lock); 450 451 } 452 453 static int mlx4_en_uc_steer_add(struct mlx4_en_priv *priv, 454 unsigned char *mac, int *qpn, u64 *reg_id) 455 { 456 struct mlx4_en_dev *mdev = priv->mdev; 457 struct mlx4_dev *dev = mdev->dev; 458 int err; 459 460 switch (dev->caps.steering_mode) { 461 case MLX4_STEERING_MODE_B0: { 462 struct mlx4_qp qp; 463 u8 gid[16] = {0}; 464 465 qp.qpn = *qpn; 466 memcpy(&gid[10], mac, ETH_ALEN); 467 gid[5] = priv->port; 468 469 err = mlx4_unicast_attach(dev, &qp, gid, 0, MLX4_PROT_ETH); 470 break; 471 } 472 case MLX4_STEERING_MODE_DEVICE_MANAGED: { 473 struct mlx4_spec_list spec_eth = { {NULL} }; 474 __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16); 475 476 struct mlx4_net_trans_rule rule = { 477 .queue_mode = MLX4_NET_TRANS_Q_FIFO, 478 .exclusive = 0, 479 .allow_loopback = 1, 480 .promisc_mode = MLX4_FS_REGULAR, 481 .priority = MLX4_DOMAIN_NIC, 482 }; 483 484 rule.port = priv->port; 485 rule.qpn = *qpn; 486 INIT_LIST_HEAD(&rule.list); 487 488 spec_eth.id = MLX4_NET_TRANS_RULE_ID_ETH; 489 memcpy(spec_eth.eth.dst_mac, mac, ETH_ALEN); 490 memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN); 491 list_add_tail(&spec_eth.list, &rule.list); 492 493 err = mlx4_flow_attach(dev, &rule, reg_id); 494 break; 495 } 496 default: 497 return -EINVAL; 498 } 499 if (err) 500 en_warn(priv, "Failed Attaching Unicast\n"); 501 502 return err; 503 } 504 505 static void mlx4_en_uc_steer_release(struct mlx4_en_priv *priv, 506 unsigned char *mac, int qpn, u64 reg_id) 507 { 508 struct mlx4_en_dev *mdev = priv->mdev; 509 struct mlx4_dev *dev = mdev->dev; 510 511 switch (dev->caps.steering_mode) { 512 case MLX4_STEERING_MODE_B0: { 513 struct mlx4_qp qp; 514 u8 gid[16] = {0}; 515 516 qp.qpn = qpn; 517 memcpy(&gid[10], mac, ETH_ALEN); 518 gid[5] = priv->port; 519 520 mlx4_unicast_detach(dev, &qp, gid, MLX4_PROT_ETH); 521 break; 522 } 523 case MLX4_STEERING_MODE_DEVICE_MANAGED: { 524 mlx4_flow_detach(dev, reg_id); 525 break; 526 } 527 default: 528 en_err(priv, "Invalid steering mode.\n"); 529 } 530 } 531 532 static int mlx4_en_get_qp(struct mlx4_en_priv *priv) 533 { 534 struct mlx4_en_dev *mdev = priv->mdev; 535 struct mlx4_dev *dev = mdev->dev; 536 struct mlx4_mac_entry *entry; 537 int index = 0; 538 int err = 0; 539 u64 reg_id; 540 int *qpn = &priv->base_qpn; 541 u64 mac = mlx4_mac_to_u64(IF_LLADDR(priv->dev)); 542 543 en_dbg(DRV, priv, "Registering MAC: %pM for adding\n", 544 IF_LLADDR(priv->dev)); 545 index = mlx4_register_mac(dev, priv->port, mac); 546 if (index < 0) { 547 err = index; 548 en_err(priv, "Failed adding MAC: %pM\n", 549 IF_LLADDR(priv->dev)); 550 return err; 551 } 552 553 if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) { 554 int base_qpn = mlx4_get_base_qpn(dev, priv->port); 555 *qpn = base_qpn + index; 556 return 0; 557 } 558 559 err = mlx4_qp_reserve_range(dev, 1, 1, qpn, 0); 560 en_dbg(DRV, priv, "Reserved qp %d\n", *qpn); 561 if (err) { 562 en_err(priv, "Failed to reserve qp for mac registration\n"); 563 goto qp_err; 564 } 565 566 err = mlx4_en_uc_steer_add(priv, IF_LLADDR(priv->dev), qpn, ®_id); 567 if (err) 568 goto steer_err; 569 570 entry = kmalloc(sizeof(*entry), GFP_KERNEL); 571 if (!entry) { 572 err = -ENOMEM; 573 goto alloc_err; 574 } 575 memcpy(entry->mac, IF_LLADDR(priv->dev), sizeof(entry->mac)); 576 entry->reg_id = reg_id; 577 578 hlist_add_head(&entry->hlist, 579 &priv->mac_hash[entry->mac[MLX4_EN_MAC_HASH_IDX]]); 580 581 return 0; 582 583 alloc_err: 584 mlx4_en_uc_steer_release(priv, IF_LLADDR(priv->dev), *qpn, reg_id); 585 586 steer_err: 587 mlx4_qp_release_range(dev, *qpn, 1); 588 589 qp_err: 590 mlx4_unregister_mac(dev, priv->port, mac); 591 return err; 592 } 593 594 static void mlx4_en_put_qp(struct mlx4_en_priv *priv) 595 { 596 struct mlx4_en_dev *mdev = priv->mdev; 597 struct mlx4_dev *dev = mdev->dev; 598 int qpn = priv->base_qpn; 599 u64 mac; 600 601 if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) { 602 mac = mlx4_mac_to_u64(IF_LLADDR(priv->dev)); 603 en_dbg(DRV, priv, "Registering MAC: %pM for deleting\n", 604 IF_LLADDR(priv->dev)); 605 mlx4_unregister_mac(dev, priv->port, mac); 606 } else { 607 struct mlx4_mac_entry *entry; 608 struct hlist_node *tmp; 609 struct hlist_head *bucket; 610 unsigned int i; 611 612 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) { 613 bucket = &priv->mac_hash[i]; 614 hlist_for_each_entry_safe(entry, tmp, bucket, hlist) { 615 mac = mlx4_mac_to_u64(entry->mac); 616 en_dbg(DRV, priv, "Registering MAC: %pM for deleting\n", 617 entry->mac); 618 mlx4_en_uc_steer_release(priv, entry->mac, 619 qpn, entry->reg_id); 620 621 mlx4_unregister_mac(dev, priv->port, mac); 622 hlist_del(&entry->hlist); 623 kfree(entry); 624 } 625 } 626 627 en_dbg(DRV, priv, "Releasing qp: port %d, qpn %d\n", 628 priv->port, qpn); 629 mlx4_qp_release_range(dev, qpn, 1); 630 priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC; 631 } 632 } 633 634 static void mlx4_en_clear_list(struct net_device *dev) 635 { 636 struct mlx4_en_priv *priv = netdev_priv(dev); 637 struct mlx4_en_mc_list *tmp, *mc_to_del; 638 639 list_for_each_entry_safe(mc_to_del, tmp, &priv->mc_list, list) { 640 list_del(&mc_to_del->list); 641 kfree(mc_to_del); 642 } 643 } 644 645 static void mlx4_en_cache_mclist(struct net_device *dev) 646 { 647 struct ifmultiaddr *ifma; 648 struct mlx4_en_mc_list *tmp; 649 struct mlx4_en_priv *priv = netdev_priv(dev); 650 651 if_maddr_rlock(dev); 652 TAILQ_FOREACH(ifma, &dev->if_multiaddrs, ifma_link) { 653 if (ifma->ifma_addr->sa_family != AF_LINK) 654 continue; 655 if (((struct sockaddr_dl *)ifma->ifma_addr)->sdl_alen != 656 ETHER_ADDR_LEN) 657 continue; 658 /* Make sure the list didn't grow. */ 659 tmp = kzalloc(sizeof(struct mlx4_en_mc_list), GFP_ATOMIC); 660 if (tmp == NULL) { 661 en_err(priv, "Failed to allocate multicast list\n"); 662 break; 663 } 664 memcpy(tmp->addr, 665 LLADDR((struct sockaddr_dl *)ifma->ifma_addr), ETH_ALEN); 666 list_add_tail(&tmp->list, &priv->mc_list); 667 } 668 if_maddr_runlock(dev); 669 } 670 671 static void update_mclist_flags(struct mlx4_en_priv *priv, 672 struct list_head *dst, 673 struct list_head *src) 674 { 675 struct mlx4_en_mc_list *dst_tmp, *src_tmp, *new_mc; 676 bool found; 677 678 /* Find all the entries that should be removed from dst, 679 * These are the entries that are not found in src 680 */ 681 list_for_each_entry(dst_tmp, dst, list) { 682 found = false; 683 list_for_each_entry(src_tmp, src, list) { 684 if (!memcmp(dst_tmp->addr, src_tmp->addr, ETH_ALEN)) { 685 found = true; 686 break; 687 } 688 } 689 if (!found) 690 dst_tmp->action = MCLIST_REM; 691 } 692 693 /* Add entries that exist in src but not in dst 694 * mark them as need to add 695 */ 696 list_for_each_entry(src_tmp, src, list) { 697 found = false; 698 list_for_each_entry(dst_tmp, dst, list) { 699 if (!memcmp(dst_tmp->addr, src_tmp->addr, ETH_ALEN)) { 700 dst_tmp->action = MCLIST_NONE; 701 found = true; 702 break; 703 } 704 } 705 if (!found) { 706 new_mc = kmalloc(sizeof(struct mlx4_en_mc_list), 707 GFP_KERNEL); 708 if (!new_mc) { 709 en_err(priv, "Failed to allocate current multicast list\n"); 710 return; 711 } 712 memcpy(new_mc, src_tmp, 713 sizeof(struct mlx4_en_mc_list)); 714 new_mc->action = MCLIST_ADD; 715 list_add_tail(&new_mc->list, dst); 716 } 717 } 718 } 719 720 static void mlx4_en_set_rx_mode(struct net_device *dev) 721 { 722 struct mlx4_en_priv *priv = netdev_priv(dev); 723 724 if (!priv->port_up) 725 return; 726 727 queue_work(priv->mdev->workqueue, &priv->rx_mode_task); 728 } 729 730 static void mlx4_en_set_promisc_mode(struct mlx4_en_priv *priv, 731 struct mlx4_en_dev *mdev) 732 { 733 int err = 0; 734 if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) { 735 priv->flags |= MLX4_EN_FLAG_PROMISC; 736 737 /* Enable promiscouos mode */ 738 switch (mdev->dev->caps.steering_mode) { 739 case MLX4_STEERING_MODE_DEVICE_MANAGED: 740 err = mlx4_flow_steer_promisc_add(mdev->dev, 741 priv->port, 742 priv->base_qpn, 743 MLX4_FS_ALL_DEFAULT); 744 if (err) 745 en_err(priv, "Failed enabling promiscuous mode\n"); 746 priv->flags |= MLX4_EN_FLAG_MC_PROMISC; 747 break; 748 749 case MLX4_STEERING_MODE_B0: 750 err = mlx4_unicast_promisc_add(mdev->dev, 751 priv->base_qpn, 752 priv->port); 753 if (err) 754 en_err(priv, "Failed enabling unicast promiscuous mode\n"); 755 756 /* Add the default qp number as multicast 757 * promisc 758 */ 759 if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { 760 err = mlx4_multicast_promisc_add(mdev->dev, 761 priv->base_qpn, 762 priv->port); 763 if (err) 764 en_err(priv, "Failed enabling multicast promiscuous mode\n"); 765 priv->flags |= MLX4_EN_FLAG_MC_PROMISC; 766 } 767 break; 768 769 case MLX4_STEERING_MODE_A0: 770 err = mlx4_SET_PORT_qpn_calc(mdev->dev, 771 priv->port, 772 priv->base_qpn, 773 1); 774 if (err) 775 en_err(priv, "Failed enabling promiscuous mode\n"); 776 break; 777 } 778 779 /* Disable port multicast filter (unconditionally) */ 780 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 781 0, MLX4_MCAST_DISABLE); 782 if (err) 783 en_err(priv, "Failed disabling multicast filter\n"); 784 } 785 } 786 787 static void mlx4_en_clear_promisc_mode(struct mlx4_en_priv *priv, 788 struct mlx4_en_dev *mdev) 789 { 790 int err = 0; 791 792 priv->flags &= ~MLX4_EN_FLAG_PROMISC; 793 794 /* Disable promiscouos mode */ 795 switch (mdev->dev->caps.steering_mode) { 796 case MLX4_STEERING_MODE_DEVICE_MANAGED: 797 err = mlx4_flow_steer_promisc_remove(mdev->dev, 798 priv->port, 799 MLX4_FS_ALL_DEFAULT); 800 if (err) 801 en_err(priv, "Failed disabling promiscuous mode\n"); 802 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; 803 break; 804 805 case MLX4_STEERING_MODE_B0: 806 err = mlx4_unicast_promisc_remove(mdev->dev, 807 priv->base_qpn, 808 priv->port); 809 if (err) 810 en_err(priv, "Failed disabling unicast promiscuous mode\n"); 811 /* Disable Multicast promisc */ 812 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { 813 err = mlx4_multicast_promisc_remove(mdev->dev, 814 priv->base_qpn, 815 priv->port); 816 if (err) 817 en_err(priv, "Failed disabling multicast promiscuous mode\n"); 818 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; 819 } 820 break; 821 822 case MLX4_STEERING_MODE_A0: 823 err = mlx4_SET_PORT_qpn_calc(mdev->dev, 824 priv->port, 825 priv->base_qpn, 0); 826 if (err) 827 en_err(priv, "Failed disabling promiscuous mode\n"); 828 break; 829 } 830 } 831 832 static void mlx4_en_do_multicast(struct mlx4_en_priv *priv, 833 struct net_device *dev, 834 struct mlx4_en_dev *mdev) 835 { 836 struct mlx4_en_mc_list *mclist, *tmp; 837 u8 mc_list[16] = {0}; 838 int err = 0; 839 u64 mcast_addr = 0; 840 841 842 /* Enable/disable the multicast filter according to IFF_ALLMULTI */ 843 if (dev->if_flags & IFF_ALLMULTI) { 844 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 845 0, MLX4_MCAST_DISABLE); 846 if (err) 847 en_err(priv, "Failed disabling multicast filter\n"); 848 849 /* Add the default qp number as multicast promisc */ 850 if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { 851 switch (mdev->dev->caps.steering_mode) { 852 case MLX4_STEERING_MODE_DEVICE_MANAGED: 853 err = mlx4_flow_steer_promisc_add(mdev->dev, 854 priv->port, 855 priv->base_qpn, 856 MLX4_FS_MC_DEFAULT); 857 break; 858 859 case MLX4_STEERING_MODE_B0: 860 err = mlx4_multicast_promisc_add(mdev->dev, 861 priv->base_qpn, 862 priv->port); 863 break; 864 865 case MLX4_STEERING_MODE_A0: 866 break; 867 } 868 if (err) 869 en_err(priv, "Failed entering multicast promisc mode\n"); 870 priv->flags |= MLX4_EN_FLAG_MC_PROMISC; 871 } 872 } else { 873 /* Disable Multicast promisc */ 874 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { 875 switch (mdev->dev->caps.steering_mode) { 876 case MLX4_STEERING_MODE_DEVICE_MANAGED: 877 err = mlx4_flow_steer_promisc_remove(mdev->dev, 878 priv->port, 879 MLX4_FS_MC_DEFAULT); 880 break; 881 882 case MLX4_STEERING_MODE_B0: 883 err = mlx4_multicast_promisc_remove(mdev->dev, 884 priv->base_qpn, 885 priv->port); 886 break; 887 888 case MLX4_STEERING_MODE_A0: 889 break; 890 } 891 if (err) 892 en_err(priv, "Failed disabling multicast promiscuous mode\n"); 893 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; 894 } 895 896 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 897 0, MLX4_MCAST_DISABLE); 898 if (err) 899 en_err(priv, "Failed disabling multicast filter\n"); 900 901 /* Flush mcast filter and init it with broadcast address */ 902 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST, 903 1, MLX4_MCAST_CONFIG); 904 905 /* Update multicast list - we cache all addresses so they won't 906 * change while HW is updated holding the command semaphor */ 907 mlx4_en_cache_mclist(dev); 908 list_for_each_entry(mclist, &priv->mc_list, list) { 909 mcast_addr = mlx4_mac_to_u64(mclist->addr); 910 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 911 mcast_addr, 0, MLX4_MCAST_CONFIG); 912 } 913 err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 914 0, MLX4_MCAST_ENABLE); 915 if (err) 916 en_err(priv, "Failed enabling multicast filter\n"); 917 918 update_mclist_flags(priv, &priv->curr_list, &priv->mc_list); 919 list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) { 920 if (mclist->action == MCLIST_REM) { 921 /* detach this address and delete from list */ 922 memcpy(&mc_list[10], mclist->addr, ETH_ALEN); 923 mc_list[5] = priv->port; 924 err = mlx4_multicast_detach(mdev->dev, 925 &priv->rss_map.indir_qp, 926 mc_list, 927 MLX4_PROT_ETH, 928 mclist->reg_id); 929 if (err) 930 en_err(priv, "Fail to detach multicast address\n"); 931 932 /* remove from list */ 933 list_del(&mclist->list); 934 kfree(mclist); 935 } else if (mclist->action == MCLIST_ADD) { 936 /* attach the address */ 937 memcpy(&mc_list[10], mclist->addr, ETH_ALEN); 938 /* needed for B0 steering support */ 939 mc_list[5] = priv->port; 940 err = mlx4_multicast_attach(mdev->dev, 941 &priv->rss_map.indir_qp, 942 mc_list, 943 priv->port, 0, 944 MLX4_PROT_ETH, 945 &mclist->reg_id); 946 if (err) 947 en_err(priv, "Fail to attach multicast address\n"); 948 949 } 950 } 951 } 952 } 953 954 static void mlx4_en_do_set_rx_mode(struct work_struct *work) 955 { 956 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, 957 rx_mode_task); 958 struct mlx4_en_dev *mdev = priv->mdev; 959 struct net_device *dev = priv->dev; 960 961 962 mutex_lock(&mdev->state_lock); 963 if (!mdev->device_up) { 964 en_dbg(HW, priv, "Card is not up, ignoring rx mode change.\n"); 965 goto out; 966 } 967 if (!priv->port_up) { 968 en_dbg(HW, priv, "Port is down, ignoring rx mode change.\n"); 969 goto out; 970 } 971 if (!mlx4_en_QUERY_PORT(mdev, priv->port)) { 972 if (priv->port_state.link_state) { 973 priv->last_link_state = MLX4_DEV_EVENT_PORT_UP; 974 /* update netif baudrate */ 975 priv->dev->if_baudrate = 976 IF_Mbps(priv->port_state.link_speed); 977 /* Important note: the following call for if_link_state_change 978 * is needed for interface up scenario (start port, link state 979 * change) */ 980 if_link_state_change(priv->dev, LINK_STATE_UP); 981 en_dbg(HW, priv, "Link Up\n"); 982 } 983 } 984 985 /* Promsicuous mode: disable all filters */ 986 if ((dev->if_flags & IFF_PROMISC) || 987 (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC)) { 988 mlx4_en_set_promisc_mode(priv, mdev); 989 goto out; 990 } 991 992 /* Not in promiscuous mode */ 993 if (priv->flags & MLX4_EN_FLAG_PROMISC) 994 mlx4_en_clear_promisc_mode(priv, mdev); 995 996 mlx4_en_do_multicast(priv, dev, mdev); 997 out: 998 mutex_unlock(&mdev->state_lock); 999 } 1000 1001 #ifdef CONFIG_NET_POLL_CONTROLLER 1002 static void mlx4_en_netpoll(struct net_device *dev) 1003 { 1004 struct mlx4_en_priv *priv = netdev_priv(dev); 1005 struct mlx4_en_cq *cq; 1006 unsigned long flags; 1007 int i; 1008 1009 for (i = 0; i < priv->rx_ring_num; i++) { 1010 cq = priv->rx_cq[i]; 1011 spin_lock_irqsave(&cq->lock, flags); 1012 napi_synchronize(&cq->napi); 1013 mlx4_en_process_rx_cq(dev, cq, 0); 1014 spin_unlock_irqrestore(&cq->lock, flags); 1015 } 1016 } 1017 #endif 1018 1019 static void mlx4_en_watchdog_timeout(void *arg) 1020 { 1021 struct mlx4_en_priv *priv = arg; 1022 struct mlx4_en_dev *mdev = priv->mdev; 1023 1024 en_dbg(DRV, priv, "Scheduling watchdog\n"); 1025 queue_work(mdev->workqueue, &priv->watchdog_task); 1026 if (priv->port_up) 1027 callout_reset(&priv->watchdog_timer, MLX4_EN_WATCHDOG_TIMEOUT, 1028 mlx4_en_watchdog_timeout, priv); 1029 } 1030 1031 1032 1033 static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv) 1034 { 1035 struct mlx4_en_cq *cq; 1036 int i; 1037 1038 /* If we haven't received a specific coalescing setting 1039 * (module param), we set the moderation parameters as follows: 1040 * - moder_cnt is set to the number of mtu sized packets to 1041 * satisfy our coelsing target. 1042 * - moder_time is set to a fixed value. 1043 */ 1044 priv->rx_frames = MLX4_EN_RX_COAL_TARGET / priv->dev->if_mtu + 1; 1045 priv->rx_usecs = MLX4_EN_RX_COAL_TIME; 1046 priv->tx_frames = MLX4_EN_TX_COAL_PKTS; 1047 priv->tx_usecs = MLX4_EN_TX_COAL_TIME; 1048 en_dbg(INTR, priv, "Default coalesing params for mtu: %u - " 1049 "rx_frames:%d rx_usecs:%d\n", 1050 (unsigned)priv->dev->if_mtu, priv->rx_frames, priv->rx_usecs); 1051 1052 /* Setup cq moderation params */ 1053 for (i = 0; i < priv->rx_ring_num; i++) { 1054 cq = priv->rx_cq[i]; 1055 cq->moder_cnt = priv->rx_frames; 1056 cq->moder_time = priv->rx_usecs; 1057 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF; 1058 priv->last_moder_packets[i] = 0; 1059 priv->last_moder_bytes[i] = 0; 1060 } 1061 1062 for (i = 0; i < priv->tx_ring_num; i++) { 1063 cq = priv->tx_cq[i]; 1064 cq->moder_cnt = priv->tx_frames; 1065 cq->moder_time = priv->tx_usecs; 1066 } 1067 1068 /* Reset auto-moderation params */ 1069 priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW; 1070 priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW; 1071 priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH; 1072 priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH; 1073 priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL; 1074 priv->adaptive_rx_coal = 1; 1075 priv->last_moder_jiffies = 0; 1076 priv->last_moder_tx_packets = 0; 1077 } 1078 1079 static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv) 1080 { 1081 unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies); 1082 struct mlx4_en_cq *cq; 1083 unsigned long packets; 1084 unsigned long rate; 1085 unsigned long avg_pkt_size; 1086 unsigned long rx_packets; 1087 unsigned long rx_bytes; 1088 unsigned long rx_pkt_diff; 1089 int moder_time; 1090 int ring, err; 1091 1092 if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ) 1093 return; 1094 1095 for (ring = 0; ring < priv->rx_ring_num; ring++) { 1096 spin_lock(&priv->stats_lock); 1097 rx_packets = priv->rx_ring[ring]->packets; 1098 rx_bytes = priv->rx_ring[ring]->bytes; 1099 spin_unlock(&priv->stats_lock); 1100 1101 rx_pkt_diff = ((unsigned long) (rx_packets - 1102 priv->last_moder_packets[ring])); 1103 packets = rx_pkt_diff; 1104 rate = packets * HZ / period; 1105 avg_pkt_size = packets ? ((unsigned long) (rx_bytes - 1106 priv->last_moder_bytes[ring])) / packets : 0; 1107 1108 /* Apply auto-moderation only when packet rate 1109 * exceeds a rate that it matters */ 1110 if (rate > (MLX4_EN_RX_RATE_THRESH / priv->rx_ring_num) && 1111 avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) { 1112 if (rate < priv->pkt_rate_low) 1113 moder_time = priv->rx_usecs_low; 1114 else if (rate > priv->pkt_rate_high) 1115 moder_time = priv->rx_usecs_high; 1116 else 1117 moder_time = (rate - priv->pkt_rate_low) * 1118 (priv->rx_usecs_high - priv->rx_usecs_low) / 1119 (priv->pkt_rate_high - priv->pkt_rate_low) + 1120 priv->rx_usecs_low; 1121 } else { 1122 moder_time = priv->rx_usecs_low; 1123 } 1124 1125 if (moder_time != priv->last_moder_time[ring]) { 1126 priv->last_moder_time[ring] = moder_time; 1127 cq = priv->rx_cq[ring]; 1128 cq->moder_time = moder_time; 1129 err = mlx4_en_set_cq_moder(priv, cq); 1130 if (err) 1131 en_err(priv, "Failed modifying moderation for cq:%d\n", 1132 ring); 1133 } 1134 priv->last_moder_packets[ring] = rx_packets; 1135 priv->last_moder_bytes[ring] = rx_bytes; 1136 } 1137 1138 priv->last_moder_jiffies = jiffies; 1139 } 1140 1141 static void mlx4_en_do_get_stats(struct work_struct *work) 1142 { 1143 struct delayed_work *delay = to_delayed_work(work); 1144 struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv, 1145 stats_task); 1146 struct mlx4_en_dev *mdev = priv->mdev; 1147 int err; 1148 1149 mutex_lock(&mdev->state_lock); 1150 if (mdev->device_up) { 1151 if (priv->port_up) { 1152 err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0); 1153 if (err) 1154 en_dbg(HW, priv, "Could not update stats\n"); 1155 1156 mlx4_en_auto_moderation(priv); 1157 } 1158 1159 queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); 1160 } 1161 mutex_unlock(&mdev->state_lock); 1162 } 1163 1164 /* mlx4_en_service_task - Run service task for tasks that needed to be done 1165 * periodically 1166 */ 1167 static void mlx4_en_service_task(struct work_struct *work) 1168 { 1169 struct delayed_work *delay = to_delayed_work(work); 1170 struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv, 1171 service_task); 1172 struct mlx4_en_dev *mdev = priv->mdev; 1173 1174 mutex_lock(&mdev->state_lock); 1175 if (mdev->device_up) { 1176 queue_delayed_work(mdev->workqueue, &priv->service_task, 1177 SERVICE_TASK_DELAY); 1178 } 1179 mutex_unlock(&mdev->state_lock); 1180 } 1181 1182 static void mlx4_en_linkstate(struct work_struct *work) 1183 { 1184 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, 1185 linkstate_task); 1186 struct mlx4_en_dev *mdev = priv->mdev; 1187 int linkstate = priv->link_state; 1188 1189 mutex_lock(&mdev->state_lock); 1190 /* If observable port state changed set carrier state and 1191 * report to system log */ 1192 if (priv->last_link_state != linkstate) { 1193 if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) { 1194 en_info(priv, "Link Down\n"); 1195 if_link_state_change(priv->dev, LINK_STATE_DOWN); 1196 /* update netif baudrate */ 1197 priv->dev->if_baudrate = 0; 1198 1199 /* make sure the port is up before notifying the OS. 1200 * This is tricky since we get here on INIT_PORT and 1201 * in such case we can't tell the OS the port is up. 1202 * To solve this there is a call to if_link_state_change 1203 * in set_rx_mode. 1204 * */ 1205 } else if (priv->port_up && (linkstate == MLX4_DEV_EVENT_PORT_UP)){ 1206 if (mlx4_en_QUERY_PORT(priv->mdev, priv->port)) 1207 en_info(priv, "Query port failed\n"); 1208 priv->dev->if_baudrate = 1209 IF_Mbps(priv->port_state.link_speed); 1210 en_info(priv, "Link Up\n"); 1211 if_link_state_change(priv->dev, LINK_STATE_UP); 1212 } 1213 } 1214 priv->last_link_state = linkstate; 1215 mutex_unlock(&mdev->state_lock); 1216 } 1217 1218 1219 int mlx4_en_start_port(struct net_device *dev) 1220 { 1221 struct mlx4_en_priv *priv = netdev_priv(dev); 1222 struct mlx4_en_dev *mdev = priv->mdev; 1223 struct mlx4_en_cq *cq; 1224 struct mlx4_en_tx_ring *tx_ring; 1225 int rx_index = 0; 1226 int tx_index = 0; 1227 int err = 0; 1228 int i; 1229 int j; 1230 u8 mc_list[16] = {0}; 1231 1232 1233 if (priv->port_up) { 1234 en_dbg(DRV, priv, "start port called while port already up\n"); 1235 return 0; 1236 } 1237 1238 INIT_LIST_HEAD(&priv->mc_list); 1239 INIT_LIST_HEAD(&priv->curr_list); 1240 INIT_LIST_HEAD(&priv->ethtool_list); 1241 1242 /* Calculate Rx buf size */ 1243 dev->if_mtu = min(dev->if_mtu, priv->max_mtu); 1244 mlx4_en_calc_rx_buf(dev); 1245 en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_mb_size); 1246 1247 /* Configure rx cq's and rings */ 1248 err = mlx4_en_activate_rx_rings(priv); 1249 if (err) { 1250 en_err(priv, "Failed to activate RX rings\n"); 1251 return err; 1252 } 1253 for (i = 0; i < priv->rx_ring_num; i++) { 1254 cq = priv->rx_cq[i]; 1255 1256 mlx4_en_cq_init_lock(cq); 1257 err = mlx4_en_activate_cq(priv, cq, i); 1258 if (err) { 1259 en_err(priv, "Failed activating Rx CQ\n"); 1260 goto cq_err; 1261 } 1262 for (j = 0; j < cq->size; j++) 1263 cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK; 1264 err = mlx4_en_set_cq_moder(priv, cq); 1265 if (err) { 1266 en_err(priv, "Failed setting cq moderation parameters"); 1267 mlx4_en_deactivate_cq(priv, cq); 1268 goto cq_err; 1269 } 1270 mlx4_en_arm_cq(priv, cq); 1271 priv->rx_ring[i]->cqn = cq->mcq.cqn; 1272 ++rx_index; 1273 } 1274 1275 /* Set qp number */ 1276 en_dbg(DRV, priv, "Getting qp number for port %d\n", priv->port); 1277 err = mlx4_en_get_qp(priv); 1278 if (err) { 1279 en_err(priv, "Failed getting eth qp\n"); 1280 goto cq_err; 1281 } 1282 mdev->mac_removed[priv->port] = 0; 1283 1284 /* gets default allocated counter index from func cap */ 1285 /* or sink counter index if no resources */ 1286 priv->counter_index = mdev->dev->caps.def_counter_index[priv->port - 1]; 1287 1288 en_dbg(DRV, priv, "%s: default counter index %d for port %d\n", 1289 __func__, priv->counter_index, priv->port); 1290 1291 err = mlx4_en_config_rss_steer(priv); 1292 if (err) { 1293 en_err(priv, "Failed configuring rss steering\n"); 1294 goto mac_err; 1295 } 1296 1297 err = mlx4_en_create_drop_qp(priv); 1298 if (err) 1299 goto rss_err; 1300 1301 /* Configure tx cq's and rings */ 1302 for (i = 0; i < priv->tx_ring_num; i++) { 1303 /* Configure cq */ 1304 cq = priv->tx_cq[i]; 1305 err = mlx4_en_activate_cq(priv, cq, i); 1306 if (err) { 1307 en_err(priv, "Failed activating Tx CQ\n"); 1308 goto tx_err; 1309 } 1310 err = mlx4_en_set_cq_moder(priv, cq); 1311 if (err) { 1312 en_err(priv, "Failed setting cq moderation parameters"); 1313 mlx4_en_deactivate_cq(priv, cq); 1314 goto tx_err; 1315 } 1316 en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i); 1317 cq->buf->wqe_index = cpu_to_be16(0xffff); 1318 1319 /* Configure ring */ 1320 tx_ring = priv->tx_ring[i]; 1321 1322 err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn, 1323 i / priv->num_tx_rings_p_up); 1324 if (err) { 1325 en_err(priv, "Failed activating Tx ring %d\n", i); 1326 mlx4_en_deactivate_cq(priv, cq); 1327 goto tx_err; 1328 } 1329 1330 /* Arm CQ for TX completions */ 1331 mlx4_en_arm_cq(priv, cq); 1332 1333 /* Set initial ownership of all Tx TXBBs to SW (1) */ 1334 for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE) 1335 *((u32 *) (tx_ring->buf + j)) = 0xffffffff; 1336 ++tx_index; 1337 } 1338 1339 /* Configure port */ 1340 err = mlx4_SET_PORT_general(mdev->dev, priv->port, 1341 priv->rx_mb_size, 1342 priv->prof->tx_pause, 1343 priv->prof->tx_ppp, 1344 priv->prof->rx_pause, 1345 priv->prof->rx_ppp); 1346 if (err) { 1347 en_err(priv, "Failed setting port general configurations for port %d, with error %d\n", 1348 priv->port, err); 1349 goto tx_err; 1350 } 1351 /* Set default qp number */ 1352 err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0); 1353 if (err) { 1354 en_err(priv, "Failed setting default qp numbers\n"); 1355 goto tx_err; 1356 } 1357 1358 /* Init port */ 1359 en_dbg(HW, priv, "Initializing port\n"); 1360 err = mlx4_INIT_PORT(mdev->dev, priv->port); 1361 if (err) { 1362 en_err(priv, "Failed Initializing port\n"); 1363 goto tx_err; 1364 } 1365 1366 /* Attach rx QP to bradcast address */ 1367 memset(&mc_list[10], 0xff, ETH_ALEN); 1368 mc_list[5] = priv->port; /* needed for B0 steering support */ 1369 if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list, 1370 priv->port, 0, MLX4_PROT_ETH, 1371 &priv->broadcast_id)) 1372 mlx4_warn(mdev, "Failed Attaching Broadcast\n"); 1373 1374 /* Must redo promiscuous mode setup. */ 1375 priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC); 1376 1377 /* Schedule multicast task to populate multicast list */ 1378 queue_work(mdev->workqueue, &priv->rx_mode_task); 1379 1380 priv->port_up = true; 1381 1382 /* Enable the queues. */ 1383 dev->if_drv_flags &= ~IFF_DRV_OACTIVE; 1384 dev->if_drv_flags |= IFF_DRV_RUNNING; 1385 #ifdef CONFIG_DEBUG_FS 1386 mlx4_en_create_debug_files(priv); 1387 #endif 1388 callout_reset(&priv->watchdog_timer, MLX4_EN_WATCHDOG_TIMEOUT, 1389 mlx4_en_watchdog_timeout, priv); 1390 1391 1392 return 0; 1393 1394 tx_err: 1395 while (tx_index--) { 1396 mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[tx_index]); 1397 mlx4_en_deactivate_cq(priv, priv->tx_cq[tx_index]); 1398 } 1399 mlx4_en_destroy_drop_qp(priv); 1400 rss_err: 1401 mlx4_en_release_rss_steer(priv); 1402 mac_err: 1403 mlx4_en_put_qp(priv); 1404 cq_err: 1405 while (rx_index--) 1406 mlx4_en_deactivate_cq(priv, priv->rx_cq[rx_index]); 1407 for (i = 0; i < priv->rx_ring_num; i++) 1408 mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]); 1409 1410 return err; /* need to close devices */ 1411 } 1412 1413 1414 void mlx4_en_stop_port(struct net_device *dev) 1415 { 1416 struct mlx4_en_priv *priv = netdev_priv(dev); 1417 struct mlx4_en_dev *mdev = priv->mdev; 1418 struct mlx4_en_mc_list *mclist, *tmp; 1419 int i; 1420 u8 mc_list[16] = {0}; 1421 1422 if (!priv->port_up) { 1423 en_dbg(DRV, priv, "stop port called while port already down\n"); 1424 return; 1425 } 1426 1427 #ifdef CONFIG_DEBUG_FS 1428 mlx4_en_delete_debug_files(priv); 1429 #endif 1430 1431 /* close port*/ 1432 mlx4_CLOSE_PORT(mdev->dev, priv->port); 1433 1434 /* Set port as not active */ 1435 priv->port_up = false; 1436 if (priv->counter_index != 0xff) { 1437 mlx4_counter_free(mdev->dev, priv->port, priv->counter_index); 1438 priv->counter_index = 0xff; 1439 } 1440 1441 /* Promsicuous mode */ 1442 if (mdev->dev->caps.steering_mode == 1443 MLX4_STEERING_MODE_DEVICE_MANAGED) { 1444 priv->flags &= ~(MLX4_EN_FLAG_PROMISC | 1445 MLX4_EN_FLAG_MC_PROMISC); 1446 mlx4_flow_steer_promisc_remove(mdev->dev, 1447 priv->port, 1448 MLX4_FS_ALL_DEFAULT); 1449 mlx4_flow_steer_promisc_remove(mdev->dev, 1450 priv->port, 1451 MLX4_FS_MC_DEFAULT); 1452 } else if (priv->flags & MLX4_EN_FLAG_PROMISC) { 1453 priv->flags &= ~MLX4_EN_FLAG_PROMISC; 1454 1455 /* Disable promiscouos mode */ 1456 mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn, 1457 priv->port); 1458 1459 /* Disable Multicast promisc */ 1460 if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { 1461 mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, 1462 priv->port); 1463 priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; 1464 } 1465 } 1466 1467 /* Detach All multicasts */ 1468 memset(&mc_list[10], 0xff, ETH_ALEN); 1469 mc_list[5] = priv->port; /* needed for B0 steering support */ 1470 mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list, 1471 MLX4_PROT_ETH, priv->broadcast_id); 1472 list_for_each_entry(mclist, &priv->curr_list, list) { 1473 memcpy(&mc_list[10], mclist->addr, ETH_ALEN); 1474 mc_list[5] = priv->port; 1475 mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, 1476 mc_list, MLX4_PROT_ETH, mclist->reg_id); 1477 } 1478 mlx4_en_clear_list(dev); 1479 list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) { 1480 list_del(&mclist->list); 1481 kfree(mclist); 1482 } 1483 1484 /* Flush multicast filter */ 1485 mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG); 1486 mlx4_en_destroy_drop_qp(priv); 1487 1488 /* Free TX Rings */ 1489 for (i = 0; i < priv->tx_ring_num; i++) { 1490 mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[i]); 1491 mlx4_en_deactivate_cq(priv, priv->tx_cq[i]); 1492 } 1493 msleep(10); 1494 1495 for (i = 0; i < priv->tx_ring_num; i++) 1496 mlx4_en_free_tx_buf(dev, priv->tx_ring[i]); 1497 1498 /* Free RSS qps */ 1499 mlx4_en_release_rss_steer(priv); 1500 1501 /* Unregister Mac address for the port */ 1502 mlx4_en_put_qp(priv); 1503 mdev->mac_removed[priv->port] = 1; 1504 1505 /* Free RX Rings */ 1506 for (i = 0; i < priv->rx_ring_num; i++) { 1507 struct mlx4_en_cq *cq = priv->rx_cq[i]; 1508 mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]); 1509 mlx4_en_deactivate_cq(priv, cq); 1510 } 1511 1512 callout_stop(&priv->watchdog_timer); 1513 1514 dev->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 1515 } 1516 1517 static void mlx4_en_restart(struct work_struct *work) 1518 { 1519 struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, 1520 watchdog_task); 1521 struct mlx4_en_dev *mdev = priv->mdev; 1522 struct net_device *dev = priv->dev; 1523 struct mlx4_en_tx_ring *ring; 1524 int i; 1525 1526 1527 if (priv->blocked == 0 || priv->port_up == 0) 1528 return; 1529 for (i = 0; i < priv->tx_ring_num; i++) { 1530 ring = priv->tx_ring[i]; 1531 if (ring->blocked && 1532 ring->watchdog_time + MLX4_EN_WATCHDOG_TIMEOUT < ticks) 1533 goto reset; 1534 } 1535 return; 1536 1537 reset: 1538 priv->port_stats.tx_timeout++; 1539 en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port); 1540 1541 mutex_lock(&mdev->state_lock); 1542 if (priv->port_up) { 1543 mlx4_en_stop_port(dev); 1544 //for (i = 0; i < priv->tx_ring_num; i++) 1545 // netdev_tx_reset_queue(priv->tx_ring[i]->tx_queue); 1546 if (mlx4_en_start_port(dev)) 1547 en_err(priv, "Failed restarting port %d\n", priv->port); 1548 } 1549 mutex_unlock(&mdev->state_lock); 1550 } 1551 1552 static void mlx4_en_clear_stats(struct net_device *dev) 1553 { 1554 struct mlx4_en_priv *priv = netdev_priv(dev); 1555 struct mlx4_en_dev *mdev = priv->mdev; 1556 int i; 1557 1558 if (!mlx4_is_slave(mdev->dev)) 1559 if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1)) 1560 en_dbg(HW, priv, "Failed dumping statistics\n"); 1561 1562 memset(&priv->pstats, 0, sizeof(priv->pstats)); 1563 memset(&priv->pkstats, 0, sizeof(priv->pkstats)); 1564 memset(&priv->port_stats, 0, sizeof(priv->port_stats)); 1565 memset(&priv->vport_stats, 0, sizeof(priv->vport_stats)); 1566 1567 for (i = 0; i < priv->tx_ring_num; i++) { 1568 priv->tx_ring[i]->bytes = 0; 1569 priv->tx_ring[i]->packets = 0; 1570 priv->tx_ring[i]->tx_csum = 0; 1571 priv->tx_ring[i]->oversized_packets = 0; 1572 } 1573 for (i = 0; i < priv->rx_ring_num; i++) { 1574 priv->rx_ring[i]->bytes = 0; 1575 priv->rx_ring[i]->packets = 0; 1576 priv->rx_ring[i]->csum_ok = 0; 1577 priv->rx_ring[i]->csum_none = 0; 1578 } 1579 } 1580 1581 static void mlx4_en_open(void* arg) 1582 { 1583 1584 struct mlx4_en_priv *priv; 1585 struct mlx4_en_dev *mdev; 1586 struct net_device *dev; 1587 int err = 0; 1588 1589 priv = arg; 1590 mdev = priv->mdev; 1591 dev = priv->dev; 1592 1593 1594 mutex_lock(&mdev->state_lock); 1595 1596 if (!mdev->device_up) { 1597 en_err(priv, "Cannot open - device down/disabled\n"); 1598 goto out; 1599 } 1600 1601 /* Reset HW statistics and SW counters */ 1602 mlx4_en_clear_stats(dev); 1603 1604 err = mlx4_en_start_port(dev); 1605 if (err) 1606 en_err(priv, "Failed starting port:%d\n", priv->port); 1607 1608 out: 1609 mutex_unlock(&mdev->state_lock); 1610 return; 1611 } 1612 1613 void mlx4_en_free_resources(struct mlx4_en_priv *priv) 1614 { 1615 int i; 1616 1617 #ifdef CONFIG_RFS_ACCEL 1618 if (priv->dev->rx_cpu_rmap) { 1619 free_irq_cpu_rmap(priv->dev->rx_cpu_rmap); 1620 priv->dev->rx_cpu_rmap = NULL; 1621 } 1622 #endif 1623 1624 for (i = 0; i < priv->tx_ring_num; i++) { 1625 if (priv->tx_ring && priv->tx_ring[i]) 1626 mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]); 1627 if (priv->tx_cq && priv->tx_cq[i]) 1628 mlx4_en_destroy_cq(priv, &priv->tx_cq[i]); 1629 } 1630 1631 for (i = 0; i < priv->rx_ring_num; i++) { 1632 if (priv->rx_ring[i]) 1633 mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i], 1634 priv->prof->rx_ring_size, priv->stride); 1635 if (priv->rx_cq[i]) 1636 mlx4_en_destroy_cq(priv, &priv->rx_cq[i]); 1637 } 1638 1639 if (priv->stat_sysctl != NULL) 1640 sysctl_ctx_free(&priv->stat_ctx); 1641 } 1642 1643 int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) 1644 { 1645 struct mlx4_en_port_profile *prof = priv->prof; 1646 int i; 1647 int node = 0; 1648 1649 /* Create rx Rings */ 1650 for (i = 0; i < priv->rx_ring_num; i++) { 1651 if (mlx4_en_create_cq(priv, &priv->rx_cq[i], 1652 prof->rx_ring_size, i, RX, node)) 1653 goto err; 1654 1655 if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i], 1656 prof->rx_ring_size, node)) 1657 goto err; 1658 } 1659 1660 /* Create tx Rings */ 1661 for (i = 0; i < priv->tx_ring_num; i++) { 1662 if (mlx4_en_create_cq(priv, &priv->tx_cq[i], 1663 prof->tx_ring_size, i, TX, node)) 1664 goto err; 1665 1666 if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], 1667 prof->tx_ring_size, TXBB_SIZE, node, i)) 1668 goto err; 1669 } 1670 1671 #ifdef CONFIG_RFS_ACCEL 1672 priv->dev->rx_cpu_rmap = alloc_irq_cpu_rmap(priv->rx_ring_num); 1673 if (!priv->dev->rx_cpu_rmap) 1674 goto err; 1675 #endif 1676 /* Re-create stat sysctls in case the number of rings changed. */ 1677 mlx4_en_sysctl_stat(priv); 1678 return 0; 1679 1680 err: 1681 en_err(priv, "Failed to allocate NIC resources\n"); 1682 for (i = 0; i < priv->rx_ring_num; i++) { 1683 if (priv->rx_ring[i]) 1684 mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i], 1685 prof->rx_ring_size, 1686 priv->stride); 1687 if (priv->rx_cq[i]) 1688 mlx4_en_destroy_cq(priv, &priv->rx_cq[i]); 1689 } 1690 for (i = 0; i < priv->tx_ring_num; i++) { 1691 if (priv->tx_ring[i]) 1692 mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]); 1693 if (priv->tx_cq[i]) 1694 mlx4_en_destroy_cq(priv, &priv->tx_cq[i]); 1695 } 1696 priv->port_up = false; 1697 return -ENOMEM; 1698 } 1699 1700 struct en_port_attribute { 1701 struct attribute attr; 1702 ssize_t (*show)(struct en_port *, struct en_port_attribute *, char *buf); 1703 ssize_t (*store)(struct en_port *, struct en_port_attribute *, char *buf, size_t count); 1704 }; 1705 1706 #define PORT_ATTR_RO(_name) \ 1707 struct en_port_attribute en_port_attr_##_name = __ATTR_RO(_name) 1708 1709 #define EN_PORT_ATTR(_name, _mode, _show, _store) \ 1710 struct en_port_attribute en_port_attr_##_name = __ATTR(_name, _mode, _show, _store) 1711 1712 void mlx4_en_destroy_netdev(struct net_device *dev) 1713 { 1714 struct mlx4_en_priv *priv = netdev_priv(dev); 1715 struct mlx4_en_dev *mdev = priv->mdev; 1716 1717 en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port); 1718 1719 if (priv->vlan_attach != NULL) 1720 EVENTHANDLER_DEREGISTER(vlan_config, priv->vlan_attach); 1721 if (priv->vlan_detach != NULL) 1722 EVENTHANDLER_DEREGISTER(vlan_unconfig, priv->vlan_detach); 1723 1724 /* Unregister device - this will close the port if it was up */ 1725 if (priv->registered) { 1726 mutex_lock(&mdev->state_lock); 1727 ether_ifdetach(dev); 1728 mutex_unlock(&mdev->state_lock); 1729 } 1730 1731 mutex_lock(&mdev->state_lock); 1732 mlx4_en_stop_port(dev); 1733 mutex_unlock(&mdev->state_lock); 1734 1735 if (priv->allocated) 1736 mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE); 1737 1738 cancel_delayed_work(&priv->stats_task); 1739 cancel_delayed_work(&priv->service_task); 1740 /* flush any pending task for this netdev */ 1741 flush_workqueue(mdev->workqueue); 1742 callout_drain(&priv->watchdog_timer); 1743 1744 /* Detach the netdev so tasks would not attempt to access it */ 1745 mutex_lock(&mdev->state_lock); 1746 mdev->pndev[priv->port] = NULL; 1747 mutex_unlock(&mdev->state_lock); 1748 1749 1750 mlx4_en_free_resources(priv); 1751 1752 /* freeing the sysctl conf cannot be called from within mlx4_en_free_resources */ 1753 if (priv->conf_sysctl != NULL) 1754 sysctl_ctx_free(&priv->conf_ctx); 1755 1756 kfree(priv->tx_ring); 1757 kfree(priv->tx_cq); 1758 1759 kfree(priv); 1760 if_free(dev); 1761 1762 } 1763 1764 static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu) 1765 { 1766 struct mlx4_en_priv *priv = netdev_priv(dev); 1767 struct mlx4_en_dev *mdev = priv->mdev; 1768 int err = 0; 1769 1770 en_dbg(DRV, priv, "Change MTU called - current:%u new:%u\n", 1771 (unsigned)dev->if_mtu, (unsigned)new_mtu); 1772 1773 if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) { 1774 en_err(priv, "Bad MTU size:%d, max %u.\n", new_mtu, 1775 priv->max_mtu); 1776 return -EPERM; 1777 } 1778 mutex_lock(&mdev->state_lock); 1779 dev->if_mtu = new_mtu; 1780 if (dev->if_drv_flags & IFF_DRV_RUNNING) { 1781 if (!mdev->device_up) { 1782 /* NIC is probably restarting - let watchdog task reset 1783 * * the port */ 1784 en_dbg(DRV, priv, "Change MTU called with card down!?\n"); 1785 } else { 1786 mlx4_en_stop_port(dev); 1787 err = mlx4_en_start_port(dev); 1788 if (err) { 1789 en_err(priv, "Failed restarting port:%d\n", 1790 priv->port); 1791 queue_work(mdev->workqueue, &priv->watchdog_task); 1792 } 1793 } 1794 } 1795 mutex_unlock(&mdev->state_lock); 1796 return 0; 1797 } 1798 1799 static int mlx4_en_calc_media(struct mlx4_en_priv *priv) 1800 { 1801 int trans_type; 1802 int active; 1803 1804 active = IFM_ETHER; 1805 if (priv->last_link_state == MLX4_DEV_EVENT_PORT_DOWN) 1806 return (active); 1807 active |= IFM_FDX; 1808 trans_type = priv->port_state.transciver; 1809 /* XXX I don't know all of the transceiver values. */ 1810 switch (priv->port_state.link_speed) { 1811 case 1000: 1812 active |= IFM_1000_T; 1813 break; 1814 case 10000: 1815 if (trans_type > 0 && trans_type <= 0xC) 1816 active |= IFM_10G_SR; 1817 else if (trans_type == 0x80 || trans_type == 0) 1818 active |= IFM_10G_CX4; 1819 break; 1820 case 40000: 1821 active |= IFM_40G_CR4; 1822 break; 1823 } 1824 if (priv->prof->tx_pause) 1825 active |= IFM_ETH_TXPAUSE; 1826 if (priv->prof->rx_pause) 1827 active |= IFM_ETH_RXPAUSE; 1828 1829 return (active); 1830 } 1831 1832 static void mlx4_en_media_status(struct ifnet *dev, struct ifmediareq *ifmr) 1833 { 1834 struct mlx4_en_priv *priv; 1835 1836 priv = dev->if_softc; 1837 ifmr->ifm_status = IFM_AVALID; 1838 if (priv->last_link_state != MLX4_DEV_EVENT_PORT_DOWN) 1839 ifmr->ifm_status |= IFM_ACTIVE; 1840 ifmr->ifm_active = mlx4_en_calc_media(priv); 1841 1842 return; 1843 } 1844 1845 static int mlx4_en_media_change(struct ifnet *dev) 1846 { 1847 struct mlx4_en_priv *priv; 1848 struct ifmedia *ifm; 1849 int rxpause; 1850 int txpause; 1851 int error; 1852 1853 priv = dev->if_softc; 1854 ifm = &priv->media; 1855 rxpause = txpause = 0; 1856 error = 0; 1857 1858 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 1859 return (EINVAL); 1860 switch (IFM_SUBTYPE(ifm->ifm_media)) { 1861 case IFM_AUTO: 1862 break; 1863 case IFM_10G_SR: 1864 case IFM_10G_CX4: 1865 case IFM_1000_T: 1866 case IFM_40G_CR4: 1867 if ((IFM_SUBTYPE(ifm->ifm_media) 1868 == IFM_SUBTYPE(mlx4_en_calc_media(priv))) 1869 && (ifm->ifm_media & IFM_FDX)) 1870 break; 1871 /* Fallthrough */ 1872 default: 1873 printf("%s: Only auto media type\n", if_name(dev)); 1874 return (EINVAL); 1875 } 1876 /* Allow user to set/clear pause */ 1877 if (IFM_OPTIONS(ifm->ifm_media) & IFM_ETH_RXPAUSE) 1878 rxpause = 1; 1879 if (IFM_OPTIONS(ifm->ifm_media) & IFM_ETH_TXPAUSE) 1880 txpause = 1; 1881 if (priv->prof->tx_pause != txpause || priv->prof->rx_pause != rxpause) { 1882 priv->prof->tx_pause = txpause; 1883 priv->prof->rx_pause = rxpause; 1884 error = -mlx4_SET_PORT_general(priv->mdev->dev, priv->port, 1885 priv->rx_mb_size + ETHER_CRC_LEN, priv->prof->tx_pause, 1886 priv->prof->tx_ppp, priv->prof->rx_pause, 1887 priv->prof->rx_ppp); 1888 } 1889 return (error); 1890 } 1891 1892 static int mlx4_en_ioctl(struct ifnet *dev, u_long command, caddr_t data) 1893 { 1894 struct mlx4_en_priv *priv; 1895 struct mlx4_en_dev *mdev; 1896 struct ifreq *ifr; 1897 int error; 1898 int mask; 1899 1900 error = 0; 1901 mask = 0; 1902 priv = dev->if_softc; 1903 mdev = priv->mdev; 1904 ifr = (struct ifreq *) data; 1905 switch (command) { 1906 1907 case SIOCSIFMTU: 1908 error = -mlx4_en_change_mtu(dev, ifr->ifr_mtu); 1909 break; 1910 case SIOCSIFFLAGS: 1911 if (dev->if_flags & IFF_UP) { 1912 if ((dev->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1913 mutex_lock(&mdev->state_lock); 1914 mlx4_en_start_port(dev); 1915 mutex_unlock(&mdev->state_lock); 1916 } else { 1917 mlx4_en_set_rx_mode(dev); 1918 } 1919 } else { 1920 mutex_lock(&mdev->state_lock); 1921 if (dev->if_drv_flags & IFF_DRV_RUNNING) { 1922 mlx4_en_stop_port(dev); 1923 if_link_state_change(dev, LINK_STATE_DOWN); 1924 } 1925 mutex_unlock(&mdev->state_lock); 1926 } 1927 break; 1928 case SIOCADDMULTI: 1929 case SIOCDELMULTI: 1930 mlx4_en_set_rx_mode(dev); 1931 break; 1932 case SIOCSIFMEDIA: 1933 case SIOCGIFMEDIA: 1934 error = ifmedia_ioctl(dev, ifr, &priv->media, command); 1935 break; 1936 case SIOCSIFCAP: 1937 mutex_lock(&mdev->state_lock); 1938 mask = ifr->ifr_reqcap ^ dev->if_capenable; 1939 if (mask & IFCAP_TXCSUM) { 1940 dev->if_capenable ^= IFCAP_TXCSUM; 1941 dev->if_hwassist ^= (CSUM_TCP | CSUM_UDP | CSUM_IP); 1942 1943 if (IFCAP_TSO4 & dev->if_capenable && 1944 !(IFCAP_TXCSUM & dev->if_capenable)) { 1945 dev->if_capenable &= ~IFCAP_TSO4; 1946 dev->if_hwassist &= ~CSUM_IP_TSO; 1947 if_printf(dev, 1948 "tso4 disabled due to -txcsum.\n"); 1949 } 1950 } 1951 if (mask & IFCAP_TXCSUM_IPV6) { 1952 dev->if_capenable ^= IFCAP_TXCSUM_IPV6; 1953 dev->if_hwassist ^= (CSUM_UDP_IPV6 | CSUM_TCP_IPV6); 1954 1955 if (IFCAP_TSO6 & dev->if_capenable && 1956 !(IFCAP_TXCSUM_IPV6 & dev->if_capenable)) { 1957 dev->if_capenable &= ~IFCAP_TSO6; 1958 dev->if_hwassist &= ~CSUM_IP6_TSO; 1959 if_printf(dev, 1960 "tso6 disabled due to -txcsum6.\n"); 1961 } 1962 } 1963 if (mask & IFCAP_RXCSUM) 1964 dev->if_capenable ^= IFCAP_RXCSUM; 1965 if (mask & IFCAP_RXCSUM_IPV6) 1966 dev->if_capenable ^= IFCAP_RXCSUM_IPV6; 1967 1968 if (mask & IFCAP_TSO4) { 1969 if (!(IFCAP_TSO4 & dev->if_capenable) && 1970 !(IFCAP_TXCSUM & dev->if_capenable)) { 1971 if_printf(dev, "enable txcsum first.\n"); 1972 error = EAGAIN; 1973 goto out; 1974 } 1975 dev->if_capenable ^= IFCAP_TSO4; 1976 dev->if_hwassist ^= CSUM_IP_TSO; 1977 } 1978 if (mask & IFCAP_TSO6) { 1979 if (!(IFCAP_TSO6 & dev->if_capenable) && 1980 !(IFCAP_TXCSUM_IPV6 & dev->if_capenable)) { 1981 if_printf(dev, "enable txcsum6 first.\n"); 1982 error = EAGAIN; 1983 goto out; 1984 } 1985 dev->if_capenable ^= IFCAP_TSO6; 1986 dev->if_hwassist ^= CSUM_IP6_TSO; 1987 } 1988 if (mask & IFCAP_LRO) 1989 dev->if_capenable ^= IFCAP_LRO; 1990 if (mask & IFCAP_VLAN_HWTAGGING) 1991 dev->if_capenable ^= IFCAP_VLAN_HWTAGGING; 1992 if (mask & IFCAP_VLAN_HWFILTER) 1993 dev->if_capenable ^= IFCAP_VLAN_HWFILTER; 1994 if (mask & IFCAP_WOL_MAGIC) 1995 dev->if_capenable ^= IFCAP_WOL_MAGIC; 1996 if (dev->if_drv_flags & IFF_DRV_RUNNING) 1997 mlx4_en_start_port(dev); 1998 out: 1999 mutex_unlock(&mdev->state_lock); 2000 VLAN_CAPABILITIES(dev); 2001 break; 2002 #if __FreeBSD_version >= 1100036 2003 case SIOCGI2C: { 2004 struct ifi2creq i2c; 2005 2006 error = copyin(ifr->ifr_data, &i2c, sizeof(i2c)); 2007 if (error) 2008 break; 2009 if (i2c.len > sizeof(i2c.data)) { 2010 error = EINVAL; 2011 break; 2012 } 2013 /* 2014 * Note that we ignore i2c.addr here. The driver hardcodes 2015 * the address to 0x50, while standard expects it to be 0xA0. 2016 */ 2017 error = mlx4_get_module_info(mdev->dev, priv->port, 2018 i2c.offset, i2c.len, i2c.data); 2019 if (error < 0) { 2020 error = -error; 2021 break; 2022 } 2023 error = copyout(&i2c, ifr->ifr_data, sizeof(i2c)); 2024 break; 2025 } 2026 #endif 2027 default: 2028 error = ether_ioctl(dev, command, data); 2029 break; 2030 } 2031 2032 return (error); 2033 } 2034 2035 2036 int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, 2037 struct mlx4_en_port_profile *prof) 2038 { 2039 struct net_device *dev; 2040 struct mlx4_en_priv *priv; 2041 uint8_t dev_addr[ETHER_ADDR_LEN]; 2042 int err; 2043 int i; 2044 2045 priv = kzalloc(sizeof(*priv), GFP_KERNEL); 2046 dev = priv->dev = if_alloc(IFT_ETHER); 2047 if (dev == NULL) { 2048 en_err(priv, "Net device allocation failed\n"); 2049 kfree(priv); 2050 return -ENOMEM; 2051 } 2052 dev->if_softc = priv; 2053 if_initname(dev, "mlxen", (device_get_unit( 2054 mdev->pdev->dev.bsddev) * MLX4_MAX_PORTS) + port - 1); 2055 dev->if_mtu = ETHERMTU; 2056 dev->if_init = mlx4_en_open; 2057 dev->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 2058 dev->if_ioctl = mlx4_en_ioctl; 2059 dev->if_transmit = mlx4_en_transmit; 2060 dev->if_qflush = mlx4_en_qflush; 2061 dev->if_snd.ifq_maxlen = prof->tx_ring_size; 2062 2063 /* 2064 * Initialize driver private data 2065 */ 2066 priv->counter_index = 0xff; 2067 spin_lock_init(&priv->stats_lock); 2068 INIT_WORK(&priv->rx_mode_task, mlx4_en_do_set_rx_mode); 2069 INIT_WORK(&priv->watchdog_task, mlx4_en_restart); 2070 INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate); 2071 INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats); 2072 INIT_DELAYED_WORK(&priv->service_task, mlx4_en_service_task); 2073 callout_init(&priv->watchdog_timer, 1); 2074 #ifdef CONFIG_RFS_ACCEL 2075 INIT_LIST_HEAD(&priv->filters); 2076 spin_lock_init(&priv->filters_lock); 2077 #endif 2078 2079 priv->msg_enable = MLX4_EN_MSG_LEVEL; 2080 priv->dev = dev; 2081 priv->mdev = mdev; 2082 priv->ddev = &mdev->pdev->dev; 2083 priv->prof = prof; 2084 priv->port = port; 2085 priv->port_up = false; 2086 priv->flags = prof->flags; 2087 2088 priv->num_tx_rings_p_up = mdev->profile.num_tx_rings_p_up; 2089 priv->tx_ring_num = prof->tx_ring_num; 2090 priv->tx_ring = kcalloc(MAX_TX_RINGS, 2091 sizeof(struct mlx4_en_tx_ring *), GFP_KERNEL); 2092 if (!priv->tx_ring) { 2093 err = -ENOMEM; 2094 goto out; 2095 } 2096 priv->tx_cq = kcalloc(sizeof(struct mlx4_en_cq *), MAX_TX_RINGS, 2097 GFP_KERNEL); 2098 if (!priv->tx_cq) { 2099 err = -ENOMEM; 2100 goto out; 2101 } 2102 2103 priv->rx_ring_num = prof->rx_ring_num; 2104 priv->cqe_factor = (mdev->dev->caps.cqe_size == 64) ? 1 : 0; 2105 priv->mac_index = -1; 2106 priv->last_ifq_jiffies = 0; 2107 priv->if_counters_rx_errors = 0; 2108 priv->if_counters_rx_no_buffer = 0; 2109 #ifdef CONFIG_MLX4_EN_DCB 2110 if (!mlx4_is_slave(priv->mdev->dev)) { 2111 priv->dcbx_cap = DCB_CAP_DCBX_HOST; 2112 priv->flags |= MLX4_EN_FLAG_DCB_ENABLED; 2113 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) { 2114 dev->dcbnl_ops = &mlx4_en_dcbnl_ops; 2115 } else { 2116 en_info(priv, "QoS disabled - no HW support\n"); 2117 dev->dcbnl_ops = &mlx4_en_dcbnl_pfc_ops; 2118 } 2119 } 2120 #endif 2121 2122 for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) 2123 INIT_HLIST_HEAD(&priv->mac_hash[i]); 2124 2125 /* Query for default mac and max mtu */ 2126 priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port]; 2127 priv->mac = mdev->dev->caps.def_mac[priv->port]; 2128 if (ILLEGAL_MAC(priv->mac)) { 2129 #if BITS_PER_LONG == 64 2130 en_err(priv, "Port: %d, invalid mac burned: 0x%lx, quiting\n", 2131 priv->port, priv->mac); 2132 #elif BITS_PER_LONG == 32 2133 en_err(priv, "Port: %d, invalid mac burned: 0x%llx, quiting\n", 2134 priv->port, priv->mac); 2135 #endif 2136 err = -EINVAL; 2137 goto out; 2138 } 2139 2140 priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + 2141 DS_SIZE); 2142 2143 mlx4_en_sysctl_conf(priv); 2144 2145 err = mlx4_en_alloc_resources(priv); 2146 if (err) 2147 goto out; 2148 2149 /* Allocate page for receive rings */ 2150 err = mlx4_alloc_hwq_res(mdev->dev, &priv->res, 2151 MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE); 2152 if (err) { 2153 en_err(priv, "Failed to allocate page for rx qps\n"); 2154 goto out; 2155 } 2156 priv->allocated = 1; 2157 2158 /* 2159 * Set driver features 2160 */ 2161 dev->if_capabilities |= IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6; 2162 dev->if_capabilities |= IFCAP_VLAN_MTU | IFCAP_VLAN_HWTAGGING; 2163 dev->if_capabilities |= IFCAP_VLAN_HWCSUM | IFCAP_VLAN_HWFILTER; 2164 dev->if_capabilities |= IFCAP_LINKSTATE | IFCAP_JUMBO_MTU; 2165 dev->if_capabilities |= IFCAP_LRO; 2166 dev->if_capabilities |= IFCAP_HWSTATS; 2167 2168 if (mdev->LSO_support) 2169 dev->if_capabilities |= IFCAP_TSO4 | IFCAP_TSO6 | IFCAP_VLAN_HWTSO; 2170 2171 #if __FreeBSD_version >= 1100000 2172 /* set TSO limits so that we don't have to drop TX packets */ 2173 dev->if_hw_tsomax = MLX4_EN_TX_MAX_PAYLOAD_SIZE - (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN) /* hdr */; 2174 dev->if_hw_tsomaxsegcount = MLX4_EN_TX_MAX_MBUF_FRAGS - 1 /* hdr */; 2175 dev->if_hw_tsomaxsegsize = MLX4_EN_TX_MAX_MBUF_SIZE; 2176 #endif 2177 2178 dev->if_capenable = dev->if_capabilities; 2179 2180 dev->if_hwassist = 0; 2181 if (dev->if_capenable & (IFCAP_TSO4 | IFCAP_TSO6)) 2182 dev->if_hwassist |= CSUM_TSO; 2183 if (dev->if_capenable & IFCAP_TXCSUM) 2184 dev->if_hwassist |= (CSUM_TCP | CSUM_UDP | CSUM_IP); 2185 if (dev->if_capenable & IFCAP_TXCSUM_IPV6) 2186 dev->if_hwassist |= (CSUM_UDP_IPV6 | CSUM_TCP_IPV6); 2187 2188 2189 /* Register for VLAN events */ 2190 priv->vlan_attach = EVENTHANDLER_REGISTER(vlan_config, 2191 mlx4_en_vlan_rx_add_vid, priv, EVENTHANDLER_PRI_FIRST); 2192 priv->vlan_detach = EVENTHANDLER_REGISTER(vlan_unconfig, 2193 mlx4_en_vlan_rx_kill_vid, priv, EVENTHANDLER_PRI_FIRST); 2194 2195 mdev->pndev[priv->port] = dev; 2196 2197 priv->last_link_state = MLX4_DEV_EVENT_PORT_DOWN; 2198 mlx4_en_set_default_moderation(priv); 2199 2200 /* Set default MAC */ 2201 for (i = 0; i < ETHER_ADDR_LEN; i++) 2202 dev_addr[ETHER_ADDR_LEN - 1 - i] = (u8) (priv->mac >> (8 * i)); 2203 2204 2205 ether_ifattach(dev, dev_addr); 2206 if_link_state_change(dev, LINK_STATE_DOWN); 2207 ifmedia_init(&priv->media, IFM_IMASK | IFM_ETH_FMASK, 2208 mlx4_en_media_change, mlx4_en_media_status); 2209 ifmedia_add(&priv->media, IFM_ETHER | IFM_FDX | IFM_1000_T, 0, NULL); 2210 ifmedia_add(&priv->media, IFM_ETHER | IFM_FDX | IFM_10G_SR, 0, NULL); 2211 ifmedia_add(&priv->media, IFM_ETHER | IFM_FDX | IFM_10G_CX4, 0, NULL); 2212 ifmedia_add(&priv->media, IFM_ETHER | IFM_FDX | IFM_40G_CR4, 0, NULL); 2213 ifmedia_add(&priv->media, IFM_ETHER | IFM_AUTO, 0, NULL); 2214 ifmedia_set(&priv->media, IFM_ETHER | IFM_AUTO); 2215 2216 en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num); 2217 en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num); 2218 2219 priv->registered = 1; 2220 2221 en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num); 2222 en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num); 2223 2224 2225 priv->rx_mb_size = dev->if_mtu + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN; 2226 err = mlx4_SET_PORT_general(mdev->dev, priv->port, 2227 priv->rx_mb_size, 2228 prof->tx_pause, prof->tx_ppp, 2229 prof->rx_pause, prof->rx_ppp); 2230 if (err) { 2231 en_err(priv, "Failed setting port general configurations " 2232 "for port %d, with error %d\n", priv->port, err); 2233 goto out; 2234 } 2235 2236 /* Init port */ 2237 en_warn(priv, "Initializing port\n"); 2238 err = mlx4_INIT_PORT(mdev->dev, priv->port); 2239 if (err) { 2240 en_err(priv, "Failed Initializing port\n"); 2241 goto out; 2242 } 2243 2244 queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); 2245 2246 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) 2247 queue_delayed_work(mdev->workqueue, &priv->service_task, SERVICE_TASK_DELAY); 2248 2249 return 0; 2250 2251 out: 2252 mlx4_en_destroy_netdev(dev); 2253 return err; 2254 } 2255 2256 static int mlx4_en_set_ring_size(struct net_device *dev, 2257 int rx_size, int tx_size) 2258 { 2259 struct mlx4_en_priv *priv = netdev_priv(dev); 2260 struct mlx4_en_dev *mdev = priv->mdev; 2261 int port_up = 0; 2262 int err = 0; 2263 2264 rx_size = roundup_pow_of_two(rx_size); 2265 rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE); 2266 rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE); 2267 tx_size = roundup_pow_of_two(tx_size); 2268 tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE); 2269 tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE); 2270 2271 if (rx_size == (priv->port_up ? 2272 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size) && 2273 tx_size == priv->tx_ring[0]->size) 2274 return 0; 2275 mutex_lock(&mdev->state_lock); 2276 if (priv->port_up) { 2277 port_up = 1; 2278 mlx4_en_stop_port(dev); 2279 } 2280 mlx4_en_free_resources(priv); 2281 priv->prof->tx_ring_size = tx_size; 2282 priv->prof->rx_ring_size = rx_size; 2283 err = mlx4_en_alloc_resources(priv); 2284 if (err) { 2285 en_err(priv, "Failed reallocating port resources\n"); 2286 goto out; 2287 } 2288 if (port_up) { 2289 err = mlx4_en_start_port(dev); 2290 if (err) 2291 en_err(priv, "Failed starting port\n"); 2292 } 2293 out: 2294 mutex_unlock(&mdev->state_lock); 2295 return err; 2296 } 2297 static int mlx4_en_set_rx_ring_size(SYSCTL_HANDLER_ARGS) 2298 { 2299 struct mlx4_en_priv *priv; 2300 int size; 2301 int error; 2302 2303 priv = arg1; 2304 size = priv->prof->rx_ring_size; 2305 error = sysctl_handle_int(oidp, &size, 0, req); 2306 if (error || !req->newptr) 2307 return (error); 2308 error = -mlx4_en_set_ring_size(priv->dev, size, 2309 priv->prof->tx_ring_size); 2310 return (error); 2311 } 2312 2313 static int mlx4_en_set_tx_ring_size(SYSCTL_HANDLER_ARGS) 2314 { 2315 struct mlx4_en_priv *priv; 2316 int size; 2317 int error; 2318 2319 priv = arg1; 2320 size = priv->prof->tx_ring_size; 2321 error = sysctl_handle_int(oidp, &size, 0, req); 2322 if (error || !req->newptr) 2323 return (error); 2324 error = -mlx4_en_set_ring_size(priv->dev, priv->prof->rx_ring_size, 2325 size); 2326 2327 return (error); 2328 } 2329 2330 static int mlx4_en_get_module_info(struct net_device *dev, 2331 struct ethtool_modinfo *modinfo) 2332 { 2333 struct mlx4_en_priv *priv = netdev_priv(dev); 2334 struct mlx4_en_dev *mdev = priv->mdev; 2335 int ret; 2336 u8 data[4]; 2337 2338 /* Read first 2 bytes to get Module & REV ID */ 2339 ret = mlx4_get_module_info(mdev->dev, priv->port, 2340 0/*offset*/, 2/*size*/, data); 2341 2342 if (ret < 2) { 2343 en_err(priv, "Failed to read eeprom module first two bytes, error: 0x%x\n", -ret); 2344 return -EIO; 2345 } 2346 2347 switch (data[0] /* identifier */) { 2348 case MLX4_MODULE_ID_QSFP: 2349 modinfo->type = ETH_MODULE_SFF_8436; 2350 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN; 2351 break; 2352 case MLX4_MODULE_ID_QSFP_PLUS: 2353 if (data[1] >= 0x3) { /* revision id */ 2354 modinfo->type = ETH_MODULE_SFF_8636; 2355 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN; 2356 } else { 2357 modinfo->type = ETH_MODULE_SFF_8436; 2358 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN; 2359 } 2360 break; 2361 case MLX4_MODULE_ID_QSFP28: 2362 modinfo->type = ETH_MODULE_SFF_8636; 2363 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN; 2364 break; 2365 case MLX4_MODULE_ID_SFP: 2366 modinfo->type = ETH_MODULE_SFF_8472; 2367 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 2368 break; 2369 default: 2370 en_err(priv, "mlx4_en_get_module_info : Not recognized cable type\n"); 2371 return -EINVAL; 2372 } 2373 2374 return 0; 2375 } 2376 2377 static int mlx4_en_get_module_eeprom(struct net_device *dev, 2378 struct ethtool_eeprom *ee, 2379 u8 *data) 2380 { 2381 struct mlx4_en_priv *priv = netdev_priv(dev); 2382 struct mlx4_en_dev *mdev = priv->mdev; 2383 int offset = ee->offset; 2384 int i = 0, ret; 2385 2386 if (ee->len == 0) 2387 return -EINVAL; 2388 2389 memset(data, 0, ee->len); 2390 2391 while (i < ee->len) { 2392 en_dbg(DRV, priv, 2393 "mlx4_get_module_info i(%d) offset(%d) len(%d)\n", 2394 i, offset, ee->len - i); 2395 2396 ret = mlx4_get_module_info(mdev->dev, priv->port, 2397 offset, ee->len - i, data + i); 2398 2399 if (!ret) /* Done reading */ 2400 return 0; 2401 2402 if (ret < 0) { 2403 en_err(priv, 2404 "mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n", 2405 i, offset, ee->len - i, ret); 2406 return -1; 2407 } 2408 2409 i += ret; 2410 offset += ret; 2411 } 2412 return 0; 2413 } 2414 2415 static void mlx4_en_print_eeprom(u8 *data, __u32 len) 2416 { 2417 int i; 2418 int j = 0; 2419 int row = 0; 2420 const int NUM_OF_BYTES = 16; 2421 2422 printf("\nOffset\t\tValues\n"); 2423 printf("------\t\t------\n"); 2424 while(row < len){ 2425 printf("0x%04x\t\t",row); 2426 for(i=0; i < NUM_OF_BYTES; i++){ 2427 printf("%02x ", data[j]); 2428 row++; 2429 j++; 2430 } 2431 printf("\n"); 2432 } 2433 } 2434 2435 /* Read cable EEPROM module information by first inspecting the first 2436 * two bytes to get the length and then read the rest of the information. 2437 * The information is printed to dmesg. */ 2438 static int mlx4_en_read_eeprom(SYSCTL_HANDLER_ARGS) 2439 { 2440 2441 u8* data; 2442 int error; 2443 int result = 0; 2444 struct mlx4_en_priv *priv; 2445 struct net_device *dev; 2446 struct ethtool_modinfo modinfo; 2447 struct ethtool_eeprom ee; 2448 2449 error = sysctl_handle_int(oidp, &result, 0, req); 2450 if (error || !req->newptr) 2451 return (error); 2452 2453 if (result == 1) { 2454 priv = arg1; 2455 dev = priv->dev; 2456 data = kmalloc(PAGE_SIZE, GFP_KERNEL); 2457 2458 error = mlx4_en_get_module_info(dev, &modinfo); 2459 if (error) { 2460 en_err(priv, 2461 "mlx4_en_get_module_info returned with error - FAILED (0x%x)\n", 2462 -error); 2463 goto out; 2464 } 2465 2466 ee.len = modinfo.eeprom_len; 2467 ee.offset = 0; 2468 2469 error = mlx4_en_get_module_eeprom(dev, &ee, data); 2470 if (error) { 2471 en_err(priv, 2472 "mlx4_en_get_module_eeprom returned with error - FAILED (0x%x)\n", 2473 -error); 2474 /* Continue printing partial information in case of an error */ 2475 } 2476 2477 /* EEPROM information will be printed in dmesg */ 2478 mlx4_en_print_eeprom(data, ee.len); 2479 out: 2480 kfree(data); 2481 } 2482 /* Return zero to prevent sysctl failure. */ 2483 return (0); 2484 } 2485 2486 static int mlx4_en_set_tx_ppp(SYSCTL_HANDLER_ARGS) 2487 { 2488 struct mlx4_en_priv *priv; 2489 int ppp; 2490 int error; 2491 2492 priv = arg1; 2493 ppp = priv->prof->tx_ppp; 2494 error = sysctl_handle_int(oidp, &ppp, 0, req); 2495 if (error || !req->newptr) 2496 return (error); 2497 if (ppp > 0xff || ppp < 0) 2498 return (-EINVAL); 2499 priv->prof->tx_ppp = ppp; 2500 error = -mlx4_SET_PORT_general(priv->mdev->dev, priv->port, 2501 priv->rx_mb_size + ETHER_CRC_LEN, 2502 priv->prof->tx_pause, 2503 priv->prof->tx_ppp, 2504 priv->prof->rx_pause, 2505 priv->prof->rx_ppp); 2506 2507 return (error); 2508 } 2509 2510 static int mlx4_en_set_rx_ppp(SYSCTL_HANDLER_ARGS) 2511 { 2512 struct mlx4_en_priv *priv; 2513 struct mlx4_en_dev *mdev; 2514 int ppp; 2515 int error; 2516 int port_up; 2517 2518 port_up = 0; 2519 priv = arg1; 2520 mdev = priv->mdev; 2521 ppp = priv->prof->rx_ppp; 2522 error = sysctl_handle_int(oidp, &ppp, 0, req); 2523 if (error || !req->newptr) 2524 return (error); 2525 if (ppp > 0xff || ppp < 0) 2526 return (-EINVAL); 2527 /* See if we have to change the number of tx queues. */ 2528 if (!ppp != !priv->prof->rx_ppp) { 2529 mutex_lock(&mdev->state_lock); 2530 if (priv->port_up) { 2531 port_up = 1; 2532 mlx4_en_stop_port(priv->dev); 2533 } 2534 mlx4_en_free_resources(priv); 2535 priv->prof->rx_ppp = ppp; 2536 error = -mlx4_en_alloc_resources(priv); 2537 if (error) 2538 en_err(priv, "Failed reallocating port resources\n"); 2539 if (error == 0 && port_up) { 2540 error = -mlx4_en_start_port(priv->dev); 2541 if (error) 2542 en_err(priv, "Failed starting port\n"); 2543 } 2544 mutex_unlock(&mdev->state_lock); 2545 return (error); 2546 2547 } 2548 priv->prof->rx_ppp = ppp; 2549 error = -mlx4_SET_PORT_general(priv->mdev->dev, priv->port, 2550 priv->rx_mb_size + ETHER_CRC_LEN, 2551 priv->prof->tx_pause, 2552 priv->prof->tx_ppp, 2553 priv->prof->rx_pause, 2554 priv->prof->rx_ppp); 2555 2556 return (error); 2557 } 2558 2559 static void mlx4_en_sysctl_conf(struct mlx4_en_priv *priv) 2560 { 2561 struct net_device *dev; 2562 struct sysctl_ctx_list *ctx; 2563 struct sysctl_oid *node; 2564 struct sysctl_oid_list *node_list; 2565 struct sysctl_oid *coal; 2566 struct sysctl_oid_list *coal_list; 2567 const char *pnameunit; 2568 2569 dev = priv->dev; 2570 ctx = &priv->conf_ctx; 2571 pnameunit = device_get_nameunit(priv->mdev->pdev->dev.bsddev); 2572 2573 sysctl_ctx_init(ctx); 2574 priv->conf_sysctl = SYSCTL_ADD_NODE(ctx, SYSCTL_STATIC_CHILDREN(_hw), 2575 OID_AUTO, dev->if_xname, CTLFLAG_RD, 0, "mlx4 10gig ethernet"); 2576 node = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(priv->conf_sysctl), OID_AUTO, 2577 "conf", CTLFLAG_RD, NULL, "Configuration"); 2578 node_list = SYSCTL_CHILDREN(node); 2579 2580 SYSCTL_ADD_UINT(ctx, node_list, OID_AUTO, "msg_enable", 2581 CTLFLAG_RW, &priv->msg_enable, 0, 2582 "Driver message enable bitfield"); 2583 SYSCTL_ADD_UINT(ctx, node_list, OID_AUTO, "rx_rings", 2584 CTLFLAG_RD, &priv->rx_ring_num, 0, 2585 "Number of receive rings"); 2586 SYSCTL_ADD_UINT(ctx, node_list, OID_AUTO, "tx_rings", 2587 CTLFLAG_RD, &priv->tx_ring_num, 0, 2588 "Number of transmit rings"); 2589 SYSCTL_ADD_PROC(ctx, node_list, OID_AUTO, "rx_size", 2590 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, priv, 0, 2591 mlx4_en_set_rx_ring_size, "I", "Receive ring size"); 2592 SYSCTL_ADD_PROC(ctx, node_list, OID_AUTO, "tx_size", 2593 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, priv, 0, 2594 mlx4_en_set_tx_ring_size, "I", "Transmit ring size"); 2595 SYSCTL_ADD_PROC(ctx, node_list, OID_AUTO, "tx_ppp", 2596 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, priv, 0, 2597 mlx4_en_set_tx_ppp, "I", "TX Per-priority pause"); 2598 SYSCTL_ADD_PROC(ctx, node_list, OID_AUTO, "rx_ppp", 2599 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, priv, 0, 2600 mlx4_en_set_rx_ppp, "I", "RX Per-priority pause"); 2601 SYSCTL_ADD_UINT(ctx, node_list, OID_AUTO, "port_num", 2602 CTLFLAG_RD, &priv->port, 0, 2603 "Port Number"); 2604 SYSCTL_ADD_STRING(ctx, node_list, OID_AUTO, "device_name", 2605 CTLFLAG_RD, __DECONST(void *, pnameunit), 0, 2606 "PCI device name"); 2607 2608 /* Add coalescer configuration. */ 2609 coal = SYSCTL_ADD_NODE(ctx, node_list, OID_AUTO, 2610 "coalesce", CTLFLAG_RD, NULL, "Interrupt coalesce configuration"); 2611 coal_list = SYSCTL_CHILDREN(coal); 2612 SYSCTL_ADD_UINT(ctx, coal_list, OID_AUTO, "pkt_rate_low", 2613 CTLFLAG_RW, &priv->pkt_rate_low, 0, 2614 "Packets per-second for minimum delay"); 2615 SYSCTL_ADD_UINT(ctx, coal_list, OID_AUTO, "rx_usecs_low", 2616 CTLFLAG_RW, &priv->rx_usecs_low, 0, 2617 "Minimum RX delay in micro-seconds"); 2618 SYSCTL_ADD_UINT(ctx, coal_list, OID_AUTO, "pkt_rate_high", 2619 CTLFLAG_RW, &priv->pkt_rate_high, 0, 2620 "Packets per-second for maximum delay"); 2621 SYSCTL_ADD_UINT(ctx, coal_list, OID_AUTO, "rx_usecs_high", 2622 CTLFLAG_RW, &priv->rx_usecs_high, 0, 2623 "Maximum RX delay in micro-seconds"); 2624 SYSCTL_ADD_UINT(ctx, coal_list, OID_AUTO, "sample_interval", 2625 CTLFLAG_RW, &priv->sample_interval, 0, 2626 "adaptive frequency in units of HZ ticks"); 2627 SYSCTL_ADD_UINT(ctx, coal_list, OID_AUTO, "adaptive_rx_coal", 2628 CTLFLAG_RW, &priv->adaptive_rx_coal, 0, 2629 "Enable adaptive rx coalescing"); 2630 /* EEPROM support */ 2631 SYSCTL_ADD_PROC(ctx, node_list, OID_AUTO, "eeprom_info", 2632 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, priv, 0, 2633 mlx4_en_read_eeprom, "I", "EEPROM information"); 2634 } 2635 2636 static void mlx4_en_sysctl_stat(struct mlx4_en_priv *priv) 2637 { 2638 struct sysctl_ctx_list *ctx; 2639 struct sysctl_oid_list *node_list; 2640 struct sysctl_oid *ring_node; 2641 struct sysctl_oid_list *ring_list; 2642 struct mlx4_en_tx_ring *tx_ring; 2643 struct mlx4_en_rx_ring *rx_ring; 2644 char namebuf[128]; 2645 int i; 2646 2647 ctx = &priv->stat_ctx; 2648 sysctl_ctx_init(ctx); 2649 priv->stat_sysctl = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(priv->conf_sysctl), OID_AUTO, 2650 "stat", CTLFLAG_RD, NULL, "Statistics"); 2651 node_list = SYSCTL_CHILDREN(priv->stat_sysctl); 2652 2653 #ifdef MLX4_EN_PERF_STAT 2654 SYSCTL_ADD_UINT(ctx, node_list, OID_AUTO, "tx_poll", CTLFLAG_RD, 2655 &priv->pstats.tx_poll, "TX Poll calls"); 2656 SYSCTL_ADD_QUAD(ctx, node_list, OID_AUTO, "tx_pktsz_avg", CTLFLAG_RD, 2657 &priv->pstats.tx_pktsz_avg, "TX average packet size"); 2658 SYSCTL_ADD_UINT(ctx, node_list, OID_AUTO, "inflight_avg", CTLFLAG_RD, 2659 &priv->pstats.inflight_avg, "TX average packets in-flight"); 2660 SYSCTL_ADD_UINT(ctx, node_list, OID_AUTO, "tx_coal_avg", CTLFLAG_RD, 2661 &priv->pstats.tx_coal_avg, "TX average coalesced completions"); 2662 SYSCTL_ADD_UINT(ctx, node_list, OID_AUTO, "rx_coal_avg", CTLFLAG_RD, 2663 &priv->pstats.rx_coal_avg, "RX average coalesced completions"); 2664 #endif 2665 2666 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tso_packets", CTLFLAG_RD, 2667 &priv->port_stats.tso_packets, "TSO packets sent"); 2668 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "queue_stopped", CTLFLAG_RD, 2669 &priv->port_stats.queue_stopped, "Queue full"); 2670 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "wake_queue", CTLFLAG_RD, 2671 &priv->port_stats.wake_queue, "Queue resumed after full"); 2672 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_timeout", CTLFLAG_RD, 2673 &priv->port_stats.tx_timeout, "Transmit timeouts"); 2674 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_oversized_packets", CTLFLAG_RD, 2675 &priv->port_stats.oversized_packets, "TX oversized packets, m_defrag failed"); 2676 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_alloc_failed", CTLFLAG_RD, 2677 &priv->port_stats.rx_alloc_failed, "RX failed to allocate mbuf"); 2678 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_chksum_good", CTLFLAG_RD, 2679 &priv->port_stats.rx_chksum_good, "RX checksum offload success"); 2680 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_chksum_none", CTLFLAG_RD, 2681 &priv->port_stats.rx_chksum_none, "RX without checksum offload"); 2682 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_chksum_offload", 2683 CTLFLAG_RD, &priv->port_stats.tx_chksum_offload, 2684 "TX checksum offloads"); 2685 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "defrag_attempts", CTLFLAG_RD, 2686 &priv->port_stats.defrag_attempts, "Oversized chains defragged"); 2687 2688 /* Could strdup the names and add in a loop. This is simpler. */ 2689 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_bytes", CTLFLAG_RD, 2690 &priv->pkstats.rx_bytes, "RX Bytes"); 2691 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_packets", CTLFLAG_RD, 2692 &priv->pkstats.rx_packets, "RX packets"); 2693 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_multicast_packets", CTLFLAG_RD, 2694 &priv->pkstats.rx_multicast_packets, "RX Multicast Packets"); 2695 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_broadcast_packets", CTLFLAG_RD, 2696 &priv->pkstats.rx_broadcast_packets, "RX Broadcast Packets"); 2697 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_errors", CTLFLAG_RD, 2698 &priv->pkstats.rx_errors, "RX Errors"); 2699 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_dropped", CTLFLAG_RD, 2700 &priv->pkstats.rx_dropped, "RX Dropped"); 2701 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_length_errors", CTLFLAG_RD, 2702 &priv->pkstats.rx_length_errors, "RX Length Errors"); 2703 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_over_errors", CTLFLAG_RD, 2704 &priv->pkstats.rx_over_errors, "RX Over Errors"); 2705 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_crc_errors", CTLFLAG_RD, 2706 &priv->pkstats.rx_crc_errors, "RX CRC Errors"); 2707 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_jabbers", CTLFLAG_RD, 2708 &priv->pkstats.rx_jabbers, "RX Jabbers"); 2709 2710 2711 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_in_range_length_error", CTLFLAG_RD, 2712 &priv->pkstats.rx_in_range_length_error, "RX IN_Range Length Error"); 2713 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_out_range_length_error", 2714 CTLFLAG_RD, &priv->pkstats.rx_out_range_length_error, 2715 "RX Out Range Length Error"); 2716 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_lt_64_bytes_packets", CTLFLAG_RD, 2717 &priv->pkstats.rx_lt_64_bytes_packets, "RX Lt 64 Bytes Packets"); 2718 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_127_bytes_packets", CTLFLAG_RD, 2719 &priv->pkstats.rx_127_bytes_packets, "RX 127 bytes Packets"); 2720 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_255_bytes_packets", CTLFLAG_RD, 2721 &priv->pkstats.rx_255_bytes_packets, "RX 255 bytes Packets"); 2722 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_511_bytes_packets", CTLFLAG_RD, 2723 &priv->pkstats.rx_511_bytes_packets, "RX 511 bytes Packets"); 2724 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_1023_bytes_packets", CTLFLAG_RD, 2725 &priv->pkstats.rx_1023_bytes_packets, "RX 1023 bytes Packets"); 2726 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_1518_bytes_packets", CTLFLAG_RD, 2727 &priv->pkstats.rx_1518_bytes_packets, "RX 1518 bytes Packets"); 2728 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_1522_bytes_packets", CTLFLAG_RD, 2729 &priv->pkstats.rx_1522_bytes_packets, "RX 1522 bytes Packets"); 2730 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_1548_bytes_packets", CTLFLAG_RD, 2731 &priv->pkstats.rx_1548_bytes_packets, "RX 1548 bytes Packets"); 2732 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "rx_gt_1548_bytes_packets", CTLFLAG_RD, 2733 &priv->pkstats.rx_gt_1548_bytes_packets, 2734 "RX Greater Then 1548 bytes Packets"); 2735 2736 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_packets", CTLFLAG_RD, 2737 &priv->pkstats.tx_packets, "TX packets"); 2738 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_bytes", CTLFLAG_RD, 2739 &priv->pkstats.tx_bytes, "TX Bytes"); 2740 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_multicast_packets", CTLFLAG_RD, 2741 &priv->pkstats.tx_multicast_packets, "TX Multicast Packets"); 2742 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_broadcast_packets", CTLFLAG_RD, 2743 &priv->pkstats.tx_broadcast_packets, "TX Broadcast Packets"); 2744 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_errors", CTLFLAG_RD, 2745 &priv->pkstats.tx_errors, "TX Errors"); 2746 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_dropped", CTLFLAG_RD, 2747 &priv->pkstats.tx_dropped, "TX Dropped"); 2748 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_lt_64_bytes_packets", CTLFLAG_RD, 2749 &priv->pkstats.tx_lt_64_bytes_packets, "TX Less Then 64 Bytes Packets"); 2750 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_127_bytes_packets", CTLFLAG_RD, 2751 &priv->pkstats.tx_127_bytes_packets, "TX 127 Bytes Packets"); 2752 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_255_bytes_packets", CTLFLAG_RD, 2753 &priv->pkstats.tx_255_bytes_packets, "TX 255 Bytes Packets"); 2754 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_511_bytes_packets", CTLFLAG_RD, 2755 &priv->pkstats.tx_511_bytes_packets, "TX 511 Bytes Packets"); 2756 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_1023_bytes_packets", CTLFLAG_RD, 2757 &priv->pkstats.tx_1023_bytes_packets, "TX 1023 Bytes Packets"); 2758 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_1518_bytes_packets", CTLFLAG_RD, 2759 &priv->pkstats.tx_1518_bytes_packets, "TX 1518 Bytes Packets"); 2760 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_1522_bytes_packets", CTLFLAG_RD, 2761 &priv->pkstats.tx_1522_bytes_packets, "TX 1522 Bytes Packets"); 2762 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_1548_bytes_packets", CTLFLAG_RD, 2763 &priv->pkstats.tx_1548_bytes_packets, "TX 1548 Bytes Packets"); 2764 SYSCTL_ADD_ULONG(ctx, node_list, OID_AUTO, "tx_gt_1548_bytes_packets", CTLFLAG_RD, 2765 &priv->pkstats.tx_gt_1548_bytes_packets, 2766 "TX Greater Then 1548 Bytes Packets"); 2767 2768 2769 2770 for (i = 0; i < priv->tx_ring_num; i++) { 2771 tx_ring = priv->tx_ring[i]; 2772 snprintf(namebuf, sizeof(namebuf), "tx_ring%d", i); 2773 ring_node = SYSCTL_ADD_NODE(ctx, node_list, OID_AUTO, namebuf, 2774 CTLFLAG_RD, NULL, "TX Ring"); 2775 ring_list = SYSCTL_CHILDREN(ring_node); 2776 SYSCTL_ADD_ULONG(ctx, ring_list, OID_AUTO, "packets", 2777 CTLFLAG_RD, &tx_ring->packets, "TX packets"); 2778 SYSCTL_ADD_ULONG(ctx, ring_list, OID_AUTO, "bytes", 2779 CTLFLAG_RD, &tx_ring->bytes, "TX bytes"); 2780 SYSCTL_ADD_ULONG(ctx, ring_list, OID_AUTO, "tso_packets", 2781 CTLFLAG_RD, &tx_ring->tso_packets, "TSO packets"); 2782 SYSCTL_ADD_ULONG(ctx, ring_list, OID_AUTO, "defrag_attempts", 2783 CTLFLAG_RD, &tx_ring->defrag_attempts, "Oversized chains defragged"); 2784 } 2785 2786 for (i = 0; i < priv->rx_ring_num; i++) { 2787 rx_ring = priv->rx_ring[i]; 2788 snprintf(namebuf, sizeof(namebuf), "rx_ring%d", i); 2789 ring_node = SYSCTL_ADD_NODE(ctx, node_list, OID_AUTO, namebuf, 2790 CTLFLAG_RD, NULL, "RX Ring"); 2791 ring_list = SYSCTL_CHILDREN(ring_node); 2792 SYSCTL_ADD_ULONG(ctx, ring_list, OID_AUTO, "packets", 2793 CTLFLAG_RD, &rx_ring->packets, "RX packets"); 2794 SYSCTL_ADD_ULONG(ctx, ring_list, OID_AUTO, "bytes", 2795 CTLFLAG_RD, &rx_ring->bytes, "RX bytes"); 2796 SYSCTL_ADD_ULONG(ctx, ring_list, OID_AUTO, "error", 2797 CTLFLAG_RD, &rx_ring->errors, "RX soft errors"); 2798 } 2799 } 2800