1 /* 2 * aQuantia Corporation Network Driver 3 * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms and conditions of the GNU General Public License, 7 * version 2, as published by the Free Software Foundation. 8 */ 9 10 /* File aq_nic.c: Definition of common code for NIC. */ 11 12 #include "aq_nic.h" 13 #include "aq_ring.h" 14 #include "aq_vec.h" 15 #include "aq_hw.h" 16 #include "aq_pci_func.h" 17 18 #include <linux/moduleparam.h> 19 #include <linux/netdevice.h> 20 #include <linux/etherdevice.h> 21 #include <linux/timer.h> 22 #include <linux/cpu.h> 23 #include <linux/ip.h> 24 #include <linux/tcp.h> 25 #include <net/ip.h> 26 27 static unsigned int aq_itr = AQ_CFG_INTERRUPT_MODERATION_AUTO; 28 module_param_named(aq_itr, aq_itr, uint, 0644); 29 MODULE_PARM_DESC(aq_itr, "Interrupt throttling mode"); 30 31 static unsigned int aq_itr_tx; 32 module_param_named(aq_itr_tx, aq_itr_tx, uint, 0644); 33 MODULE_PARM_DESC(aq_itr_tx, "TX interrupt throttle rate"); 34 35 static unsigned int aq_itr_rx; 36 module_param_named(aq_itr_rx, aq_itr_rx, uint, 0644); 37 MODULE_PARM_DESC(aq_itr_rx, "RX interrupt throttle rate"); 38 39 static void aq_nic_update_ndev_stats(struct aq_nic_s *self); 40 41 static void aq_nic_rss_init(struct aq_nic_s *self, unsigned int num_rss_queues) 42 { 43 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg; 44 struct aq_rss_parameters *rss_params = &cfg->aq_rss; 45 int i = 0; 46 47 static u8 rss_key[40] = { 48 0x1e, 0xad, 0x71, 0x87, 0x65, 0xfc, 0x26, 0x7d, 49 0x0d, 0x45, 0x67, 0x74, 0xcd, 0x06, 0x1a, 0x18, 50 0xb6, 0xc1, 0xf0, 0xc7, 0xbb, 0x18, 0xbe, 0xf8, 51 0x19, 0x13, 0x4b, 0xa9, 0xd0, 0x3e, 0xfe, 0x70, 52 0x25, 0x03, 0xab, 0x50, 0x6a, 0x8b, 0x82, 0x0c 53 }; 54 55 rss_params->hash_secret_key_size = sizeof(rss_key); 56 memcpy(rss_params->hash_secret_key, rss_key, sizeof(rss_key)); 57 rss_params->indirection_table_size = AQ_CFG_RSS_INDIRECTION_TABLE_MAX; 58 59 for (i = rss_params->indirection_table_size; i--;) 60 rss_params->indirection_table[i] = i & (num_rss_queues - 1); 61 } 62 63 /* Checks hw_caps and 'corrects' aq_nic_cfg in runtime */ 64 void aq_nic_cfg_start(struct aq_nic_s *self) 65 { 66 struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg; 67 68 cfg->tcs = AQ_CFG_TCS_DEF; 69 70 cfg->is_polling = AQ_CFG_IS_POLLING_DEF; 71 72 cfg->itr = aq_itr; 73 cfg->tx_itr = aq_itr_tx; 74 cfg->rx_itr = aq_itr_rx; 75 76 cfg->is_rss = AQ_CFG_IS_RSS_DEF; 77 cfg->num_rss_queues = AQ_CFG_NUM_RSS_QUEUES_DEF; 78 cfg->aq_rss.base_cpu_number = AQ_CFG_RSS_BASE_CPU_NUM_DEF; 79 cfg->flow_control = AQ_CFG_FC_MODE; 80 81 cfg->mtu = AQ_CFG_MTU_DEF; 82 cfg->link_speed_msk = AQ_CFG_SPEED_MSK; 83 cfg->is_autoneg = AQ_CFG_IS_AUTONEG_DEF; 84 85 cfg->is_lro = AQ_CFG_IS_LRO_DEF; 86 87 cfg->vlan_id = 0U; 88 89 aq_nic_rss_init(self, cfg->num_rss_queues); 90 91 /*descriptors */ 92 cfg->rxds = min(cfg->aq_hw_caps->rxds, AQ_CFG_RXDS_DEF); 93 cfg->txds = min(cfg->aq_hw_caps->txds, AQ_CFG_TXDS_DEF); 94 95 /*rss rings */ 96 cfg->vecs = min(cfg->aq_hw_caps->vecs, AQ_CFG_VECS_DEF); 97 cfg->vecs = min(cfg->vecs, num_online_cpus()); 98 /* cfg->vecs should be power of 2 for RSS */ 99 if (cfg->vecs >= 8U) 100 cfg->vecs = 8U; 101 else if (cfg->vecs >= 4U) 102 cfg->vecs = 4U; 103 else if (cfg->vecs >= 2U) 104 cfg->vecs = 2U; 105 else 106 cfg->vecs = 1U; 107 108 cfg->num_rss_queues = min(cfg->vecs, AQ_CFG_NUM_RSS_QUEUES_DEF); 109 110 cfg->irq_type = aq_pci_func_get_irq_type(self); 111 112 if ((cfg->irq_type == AQ_HW_IRQ_LEGACY) || 113 (cfg->aq_hw_caps->vecs == 1U) || 114 (cfg->vecs == 1U)) { 115 cfg->is_rss = 0U; 116 cfg->vecs = 1U; 117 } 118 119 cfg->link_speed_msk &= cfg->aq_hw_caps->link_speed_msk; 120 cfg->hw_features = cfg->aq_hw_caps->hw_features; 121 } 122 123 static int aq_nic_update_link_status(struct aq_nic_s *self) 124 { 125 int err = self->aq_fw_ops->update_link_status(self->aq_hw); 126 127 if (err) 128 return err; 129 130 if (self->link_status.mbps != self->aq_hw->aq_link_status.mbps) { 131 pr_info("%s: link change old %d new %d\n", 132 AQ_CFG_DRV_NAME, self->link_status.mbps, 133 self->aq_hw->aq_link_status.mbps); 134 aq_nic_update_interrupt_moderation_settings(self); 135 } 136 137 self->link_status = self->aq_hw->aq_link_status; 138 if (!netif_carrier_ok(self->ndev) && self->link_status.mbps) { 139 aq_utils_obj_set(&self->flags, 140 AQ_NIC_FLAG_STARTED); 141 aq_utils_obj_clear(&self->flags, 142 AQ_NIC_LINK_DOWN); 143 netif_carrier_on(self->ndev); 144 netif_tx_wake_all_queues(self->ndev); 145 } 146 if (netif_carrier_ok(self->ndev) && !self->link_status.mbps) { 147 netif_carrier_off(self->ndev); 148 netif_tx_disable(self->ndev); 149 aq_utils_obj_set(&self->flags, AQ_NIC_LINK_DOWN); 150 } 151 return 0; 152 } 153 154 static void aq_nic_service_timer_cb(struct timer_list *t) 155 { 156 struct aq_nic_s *self = from_timer(self, t, service_timer); 157 int ctimer = AQ_CFG_SERVICE_TIMER_INTERVAL; 158 int err = 0; 159 160 if (aq_utils_obj_test(&self->flags, AQ_NIC_FLAGS_IS_NOT_READY)) 161 goto err_exit; 162 163 err = aq_nic_update_link_status(self); 164 if (err) 165 goto err_exit; 166 167 if (self->aq_fw_ops->update_stats) 168 self->aq_fw_ops->update_stats(self->aq_hw); 169 170 aq_nic_update_ndev_stats(self); 171 172 /* If no link - use faster timer rate to detect link up asap */ 173 if (!netif_carrier_ok(self->ndev)) 174 ctimer = max(ctimer / 2, 1); 175 176 err_exit: 177 mod_timer(&self->service_timer, jiffies + ctimer); 178 } 179 180 static void aq_nic_polling_timer_cb(struct timer_list *t) 181 { 182 struct aq_nic_s *self = from_timer(self, t, polling_timer); 183 struct aq_vec_s *aq_vec = NULL; 184 unsigned int i = 0U; 185 186 for (i = 0U, aq_vec = self->aq_vec[0]; 187 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) 188 aq_vec_isr(i, (void *)aq_vec); 189 190 mod_timer(&self->polling_timer, jiffies + 191 AQ_CFG_POLLING_TIMER_INTERVAL); 192 } 193 194 int aq_nic_ndev_register(struct aq_nic_s *self) 195 { 196 int err = 0; 197 198 if (!self->ndev) { 199 err = -EINVAL; 200 goto err_exit; 201 } 202 203 err = hw_atl_utils_initfw(self->aq_hw, &self->aq_fw_ops); 204 if (err) 205 goto err_exit; 206 207 err = self->aq_fw_ops->get_mac_permanent(self->aq_hw, 208 self->ndev->dev_addr); 209 if (err) 210 goto err_exit; 211 212 #if defined(AQ_CFG_MAC_ADDR_PERMANENT) 213 { 214 static u8 mac_addr_permanent[] = AQ_CFG_MAC_ADDR_PERMANENT; 215 216 ether_addr_copy(self->ndev->dev_addr, mac_addr_permanent); 217 } 218 #endif 219 220 for (self->aq_vecs = 0; self->aq_vecs < aq_nic_get_cfg(self)->vecs; 221 self->aq_vecs++) { 222 self->aq_vec[self->aq_vecs] = 223 aq_vec_alloc(self, self->aq_vecs, aq_nic_get_cfg(self)); 224 if (!self->aq_vec[self->aq_vecs]) { 225 err = -ENOMEM; 226 goto err_exit; 227 } 228 } 229 230 netif_carrier_off(self->ndev); 231 232 netif_tx_disable(self->ndev); 233 234 err = register_netdev(self->ndev); 235 if (err) 236 goto err_exit; 237 238 err_exit: 239 return err; 240 } 241 242 void aq_nic_ndev_init(struct aq_nic_s *self) 243 { 244 const struct aq_hw_caps_s *aq_hw_caps = self->aq_nic_cfg.aq_hw_caps; 245 struct aq_nic_cfg_s *aq_nic_cfg = &self->aq_nic_cfg; 246 247 self->ndev->hw_features |= aq_hw_caps->hw_features; 248 self->ndev->features = aq_hw_caps->hw_features; 249 self->ndev->priv_flags = aq_hw_caps->hw_priv_flags; 250 self->ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE; 251 252 self->ndev->mtu = aq_nic_cfg->mtu - ETH_HLEN; 253 self->ndev->max_mtu = aq_hw_caps->mtu - ETH_FCS_LEN - ETH_HLEN; 254 255 } 256 257 void aq_nic_set_tx_ring(struct aq_nic_s *self, unsigned int idx, 258 struct aq_ring_s *ring) 259 { 260 self->aq_ring_tx[idx] = ring; 261 } 262 263 struct net_device *aq_nic_get_ndev(struct aq_nic_s *self) 264 { 265 return self->ndev; 266 } 267 268 int aq_nic_init(struct aq_nic_s *self) 269 { 270 struct aq_vec_s *aq_vec = NULL; 271 int err = 0; 272 unsigned int i = 0U; 273 274 self->power_state = AQ_HW_POWER_STATE_D0; 275 err = self->aq_hw_ops->hw_reset(self->aq_hw); 276 if (err < 0) 277 goto err_exit; 278 279 err = self->aq_hw_ops->hw_init(self->aq_hw, 280 aq_nic_get_ndev(self)->dev_addr); 281 if (err < 0) 282 goto err_exit; 283 284 for (i = 0U, aq_vec = self->aq_vec[0]; 285 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) 286 aq_vec_init(aq_vec, self->aq_hw_ops, self->aq_hw); 287 288 netif_carrier_off(self->ndev); 289 290 err_exit: 291 return err; 292 } 293 294 int aq_nic_start(struct aq_nic_s *self) 295 { 296 struct aq_vec_s *aq_vec = NULL; 297 int err = 0; 298 unsigned int i = 0U; 299 300 err = self->aq_hw_ops->hw_multicast_list_set(self->aq_hw, 301 self->mc_list.ar, 302 self->mc_list.count); 303 if (err < 0) 304 goto err_exit; 305 306 err = self->aq_hw_ops->hw_packet_filter_set(self->aq_hw, 307 self->packet_filter); 308 if (err < 0) 309 goto err_exit; 310 311 for (i = 0U, aq_vec = self->aq_vec[0]; 312 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) { 313 err = aq_vec_start(aq_vec); 314 if (err < 0) 315 goto err_exit; 316 } 317 318 err = self->aq_hw_ops->hw_start(self->aq_hw); 319 if (err < 0) 320 goto err_exit; 321 322 err = aq_nic_update_interrupt_moderation_settings(self); 323 if (err) 324 goto err_exit; 325 timer_setup(&self->service_timer, aq_nic_service_timer_cb, 0); 326 mod_timer(&self->service_timer, jiffies + 327 AQ_CFG_SERVICE_TIMER_INTERVAL); 328 329 if (self->aq_nic_cfg.is_polling) { 330 timer_setup(&self->polling_timer, aq_nic_polling_timer_cb, 0); 331 mod_timer(&self->polling_timer, jiffies + 332 AQ_CFG_POLLING_TIMER_INTERVAL); 333 } else { 334 for (i = 0U, aq_vec = self->aq_vec[0]; 335 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) { 336 err = aq_pci_func_alloc_irq(self, i, 337 self->ndev->name, aq_vec, 338 aq_vec_get_affinity_mask(aq_vec)); 339 if (err < 0) 340 goto err_exit; 341 } 342 343 err = self->aq_hw_ops->hw_irq_enable(self->aq_hw, 344 AQ_CFG_IRQ_MASK); 345 if (err < 0) 346 goto err_exit; 347 } 348 349 err = netif_set_real_num_tx_queues(self->ndev, self->aq_vecs); 350 if (err < 0) 351 goto err_exit; 352 353 err = netif_set_real_num_rx_queues(self->ndev, self->aq_vecs); 354 if (err < 0) 355 goto err_exit; 356 357 netif_tx_start_all_queues(self->ndev); 358 359 err_exit: 360 return err; 361 } 362 363 static unsigned int aq_nic_map_skb(struct aq_nic_s *self, 364 struct sk_buff *skb, 365 struct aq_ring_s *ring) 366 { 367 unsigned int ret = 0U; 368 unsigned int nr_frags = skb_shinfo(skb)->nr_frags; 369 unsigned int frag_count = 0U; 370 unsigned int dx = ring->sw_tail; 371 struct aq_ring_buff_s *first = NULL; 372 struct aq_ring_buff_s *dx_buff = &ring->buff_ring[dx]; 373 374 if (unlikely(skb_is_gso(skb))) { 375 dx_buff->flags = 0U; 376 dx_buff->len_pkt = skb->len; 377 dx_buff->len_l2 = ETH_HLEN; 378 dx_buff->len_l3 = ip_hdrlen(skb); 379 dx_buff->len_l4 = tcp_hdrlen(skb); 380 dx_buff->mss = skb_shinfo(skb)->gso_size; 381 dx_buff->is_txc = 1U; 382 dx_buff->eop_index = 0xffffU; 383 384 dx_buff->is_ipv6 = 385 (ip_hdr(skb)->version == 6) ? 1U : 0U; 386 387 dx = aq_ring_next_dx(ring, dx); 388 dx_buff = &ring->buff_ring[dx]; 389 ++ret; 390 } 391 392 dx_buff->flags = 0U; 393 dx_buff->len = skb_headlen(skb); 394 dx_buff->pa = dma_map_single(aq_nic_get_dev(self), 395 skb->data, 396 dx_buff->len, 397 DMA_TO_DEVICE); 398 399 if (unlikely(dma_mapping_error(aq_nic_get_dev(self), dx_buff->pa))) 400 goto exit; 401 402 first = dx_buff; 403 dx_buff->len_pkt = skb->len; 404 dx_buff->is_sop = 1U; 405 dx_buff->is_mapped = 1U; 406 ++ret; 407 408 if (skb->ip_summed == CHECKSUM_PARTIAL) { 409 dx_buff->is_ip_cso = (htons(ETH_P_IP) == skb->protocol) ? 410 1U : 0U; 411 412 if (ip_hdr(skb)->version == 4) { 413 dx_buff->is_tcp_cso = 414 (ip_hdr(skb)->protocol == IPPROTO_TCP) ? 415 1U : 0U; 416 dx_buff->is_udp_cso = 417 (ip_hdr(skb)->protocol == IPPROTO_UDP) ? 418 1U : 0U; 419 } else if (ip_hdr(skb)->version == 6) { 420 dx_buff->is_tcp_cso = 421 (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP) ? 422 1U : 0U; 423 dx_buff->is_udp_cso = 424 (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP) ? 425 1U : 0U; 426 } 427 } 428 429 for (; nr_frags--; ++frag_count) { 430 unsigned int frag_len = 0U; 431 unsigned int buff_offset = 0U; 432 unsigned int buff_size = 0U; 433 dma_addr_t frag_pa; 434 skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_count]; 435 436 frag_len = skb_frag_size(frag); 437 438 while (frag_len) { 439 if (frag_len > AQ_CFG_TX_FRAME_MAX) 440 buff_size = AQ_CFG_TX_FRAME_MAX; 441 else 442 buff_size = frag_len; 443 444 frag_pa = skb_frag_dma_map(aq_nic_get_dev(self), 445 frag, 446 buff_offset, 447 buff_size, 448 DMA_TO_DEVICE); 449 450 if (unlikely(dma_mapping_error(aq_nic_get_dev(self), 451 frag_pa))) 452 goto mapping_error; 453 454 dx = aq_ring_next_dx(ring, dx); 455 dx_buff = &ring->buff_ring[dx]; 456 457 dx_buff->flags = 0U; 458 dx_buff->len = buff_size; 459 dx_buff->pa = frag_pa; 460 dx_buff->is_mapped = 1U; 461 dx_buff->eop_index = 0xffffU; 462 463 frag_len -= buff_size; 464 buff_offset += buff_size; 465 466 ++ret; 467 } 468 } 469 470 first->eop_index = dx; 471 dx_buff->is_eop = 1U; 472 dx_buff->skb = skb; 473 goto exit; 474 475 mapping_error: 476 for (dx = ring->sw_tail; 477 ret > 0; 478 --ret, dx = aq_ring_next_dx(ring, dx)) { 479 dx_buff = &ring->buff_ring[dx]; 480 481 if (!dx_buff->is_txc && dx_buff->pa) { 482 if (unlikely(dx_buff->is_sop)) { 483 dma_unmap_single(aq_nic_get_dev(self), 484 dx_buff->pa, 485 dx_buff->len, 486 DMA_TO_DEVICE); 487 } else { 488 dma_unmap_page(aq_nic_get_dev(self), 489 dx_buff->pa, 490 dx_buff->len, 491 DMA_TO_DEVICE); 492 } 493 } 494 } 495 496 exit: 497 return ret; 498 } 499 500 int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb) 501 { 502 struct aq_ring_s *ring = NULL; 503 unsigned int frags = 0U; 504 unsigned int vec = skb->queue_mapping % self->aq_nic_cfg.vecs; 505 unsigned int tc = 0U; 506 int err = NETDEV_TX_OK; 507 508 frags = skb_shinfo(skb)->nr_frags + 1; 509 510 ring = self->aq_ring_tx[AQ_NIC_TCVEC2RING(self, tc, vec)]; 511 512 if (frags > AQ_CFG_SKB_FRAGS_MAX) { 513 dev_kfree_skb_any(skb); 514 goto err_exit; 515 } 516 517 aq_ring_update_queue_state(ring); 518 519 /* Above status update may stop the queue. Check this. */ 520 if (__netif_subqueue_stopped(self->ndev, ring->idx)) { 521 err = NETDEV_TX_BUSY; 522 goto err_exit; 523 } 524 525 frags = aq_nic_map_skb(self, skb, ring); 526 527 if (likely(frags)) { 528 err = self->aq_hw_ops->hw_ring_tx_xmit(self->aq_hw, 529 ring, frags); 530 if (err >= 0) { 531 ++ring->stats.tx.packets; 532 ring->stats.tx.bytes += skb->len; 533 } 534 } else { 535 err = NETDEV_TX_BUSY; 536 } 537 538 err_exit: 539 return err; 540 } 541 542 int aq_nic_update_interrupt_moderation_settings(struct aq_nic_s *self) 543 { 544 return self->aq_hw_ops->hw_interrupt_moderation_set(self->aq_hw); 545 } 546 547 int aq_nic_set_packet_filter(struct aq_nic_s *self, unsigned int flags) 548 { 549 int err = 0; 550 551 err = self->aq_hw_ops->hw_packet_filter_set(self->aq_hw, flags); 552 if (err < 0) 553 goto err_exit; 554 555 self->packet_filter = flags; 556 557 err_exit: 558 return err; 559 } 560 561 int aq_nic_set_multicast_list(struct aq_nic_s *self, struct net_device *ndev) 562 { 563 struct netdev_hw_addr *ha = NULL; 564 unsigned int i = 0U; 565 566 self->mc_list.count = 0U; 567 568 netdev_for_each_mc_addr(ha, ndev) { 569 ether_addr_copy(self->mc_list.ar[i++], ha->addr); 570 ++self->mc_list.count; 571 572 if (i >= AQ_CFG_MULTICAST_ADDRESS_MAX) 573 break; 574 } 575 576 if (i >= AQ_CFG_MULTICAST_ADDRESS_MAX) { 577 /* Number of filters is too big: atlantic does not support this. 578 * Force all multi filter to support this. 579 * With this we disable all UC filters and setup "all pass" 580 * multicast mask 581 */ 582 self->packet_filter |= IFF_ALLMULTI; 583 self->aq_nic_cfg.mc_list_count = 0; 584 return self->aq_hw_ops->hw_packet_filter_set(self->aq_hw, 585 self->packet_filter); 586 } else { 587 return self->aq_hw_ops->hw_multicast_list_set(self->aq_hw, 588 self->mc_list.ar, 589 self->mc_list.count); 590 } 591 } 592 593 int aq_nic_set_mtu(struct aq_nic_s *self, int new_mtu) 594 { 595 self->aq_nic_cfg.mtu = new_mtu; 596 597 return 0; 598 } 599 600 int aq_nic_set_mac(struct aq_nic_s *self, struct net_device *ndev) 601 { 602 return self->aq_hw_ops->hw_set_mac_address(self->aq_hw, ndev->dev_addr); 603 } 604 605 unsigned int aq_nic_get_link_speed(struct aq_nic_s *self) 606 { 607 return self->link_status.mbps; 608 } 609 610 int aq_nic_get_regs(struct aq_nic_s *self, struct ethtool_regs *regs, void *p) 611 { 612 u32 *regs_buff = p; 613 int err = 0; 614 615 regs->version = 1; 616 617 err = self->aq_hw_ops->hw_get_regs(self->aq_hw, 618 self->aq_nic_cfg.aq_hw_caps, 619 regs_buff); 620 if (err < 0) 621 goto err_exit; 622 623 err_exit: 624 return err; 625 } 626 627 int aq_nic_get_regs_count(struct aq_nic_s *self) 628 { 629 return self->aq_nic_cfg.aq_hw_caps->mac_regs_count; 630 } 631 632 void aq_nic_get_stats(struct aq_nic_s *self, u64 *data) 633 { 634 unsigned int i = 0U; 635 unsigned int count = 0U; 636 struct aq_vec_s *aq_vec = NULL; 637 struct aq_stats_s *stats = self->aq_hw_ops->hw_get_hw_stats(self->aq_hw); 638 639 if (!stats) 640 goto err_exit; 641 642 data[i] = stats->uprc + stats->mprc + stats->bprc; 643 data[++i] = stats->uprc; 644 data[++i] = stats->mprc; 645 data[++i] = stats->bprc; 646 data[++i] = stats->erpt; 647 data[++i] = stats->uptc + stats->mptc + stats->bptc; 648 data[++i] = stats->uptc; 649 data[++i] = stats->mptc; 650 data[++i] = stats->bptc; 651 data[++i] = stats->ubrc; 652 data[++i] = stats->ubtc; 653 data[++i] = stats->mbrc; 654 data[++i] = stats->mbtc; 655 data[++i] = stats->bbrc; 656 data[++i] = stats->bbtc; 657 data[++i] = stats->ubrc + stats->mbrc + stats->bbrc; 658 data[++i] = stats->ubtc + stats->mbtc + stats->bbtc; 659 data[++i] = stats->dma_pkt_rc; 660 data[++i] = stats->dma_pkt_tc; 661 data[++i] = stats->dma_oct_rc; 662 data[++i] = stats->dma_oct_tc; 663 data[++i] = stats->dpc; 664 665 i++; 666 667 data += i; 668 669 for (i = 0U, aq_vec = self->aq_vec[0]; 670 aq_vec && self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) { 671 data += count; 672 aq_vec_get_sw_stats(aq_vec, data, &count); 673 } 674 675 err_exit:; 676 } 677 678 static void aq_nic_update_ndev_stats(struct aq_nic_s *self) 679 { 680 struct net_device *ndev = self->ndev; 681 struct aq_stats_s *stats = self->aq_hw_ops->hw_get_hw_stats(self->aq_hw); 682 683 ndev->stats.rx_packets = stats->uprc + stats->mprc + stats->bprc; 684 ndev->stats.rx_bytes = stats->ubrc + stats->mbrc + stats->bbrc; 685 ndev->stats.rx_errors = stats->erpr; 686 ndev->stats.tx_packets = stats->uptc + stats->mptc + stats->bptc; 687 ndev->stats.tx_bytes = stats->ubtc + stats->mbtc + stats->bbtc; 688 ndev->stats.tx_errors = stats->erpt; 689 ndev->stats.multicast = stats->mprc; 690 } 691 692 void aq_nic_get_link_ksettings(struct aq_nic_s *self, 693 struct ethtool_link_ksettings *cmd) 694 { 695 if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE) 696 cmd->base.port = PORT_FIBRE; 697 else 698 cmd->base.port = PORT_TP; 699 /* This driver supports only 10G capable adapters, so DUPLEX_FULL */ 700 cmd->base.duplex = DUPLEX_FULL; 701 cmd->base.autoneg = self->aq_nic_cfg.is_autoneg; 702 703 ethtool_link_ksettings_zero_link_mode(cmd, supported); 704 705 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_10G) 706 ethtool_link_ksettings_add_link_mode(cmd, supported, 707 10000baseT_Full); 708 709 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_5G) 710 ethtool_link_ksettings_add_link_mode(cmd, supported, 711 5000baseT_Full); 712 713 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_2GS) 714 ethtool_link_ksettings_add_link_mode(cmd, supported, 715 2500baseT_Full); 716 717 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_1G) 718 ethtool_link_ksettings_add_link_mode(cmd, supported, 719 1000baseT_Full); 720 721 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_100M) 722 ethtool_link_ksettings_add_link_mode(cmd, supported, 723 100baseT_Full); 724 725 if (self->aq_nic_cfg.aq_hw_caps->flow_control) 726 ethtool_link_ksettings_add_link_mode(cmd, supported, 727 Pause); 728 729 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 730 731 if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE) 732 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); 733 else 734 ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 735 736 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 737 738 if (self->aq_nic_cfg.is_autoneg) 739 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); 740 741 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_10G) 742 ethtool_link_ksettings_add_link_mode(cmd, advertising, 743 10000baseT_Full); 744 745 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_5G) 746 ethtool_link_ksettings_add_link_mode(cmd, advertising, 747 5000baseT_Full); 748 749 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_2GS) 750 ethtool_link_ksettings_add_link_mode(cmd, advertising, 751 2500baseT_Full); 752 753 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_1G) 754 ethtool_link_ksettings_add_link_mode(cmd, advertising, 755 1000baseT_Full); 756 757 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_100M) 758 ethtool_link_ksettings_add_link_mode(cmd, advertising, 759 100baseT_Full); 760 761 if (self->aq_nic_cfg.flow_control) 762 ethtool_link_ksettings_add_link_mode(cmd, advertising, 763 Pause); 764 765 if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE) 766 ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE); 767 else 768 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 769 } 770 771 int aq_nic_set_link_ksettings(struct aq_nic_s *self, 772 const struct ethtool_link_ksettings *cmd) 773 { 774 u32 speed = 0U; 775 u32 rate = 0U; 776 int err = 0; 777 778 if (cmd->base.autoneg == AUTONEG_ENABLE) { 779 rate = self->aq_nic_cfg.aq_hw_caps->link_speed_msk; 780 self->aq_nic_cfg.is_autoneg = true; 781 } else { 782 speed = cmd->base.speed; 783 784 switch (speed) { 785 case SPEED_100: 786 rate = AQ_NIC_RATE_100M; 787 break; 788 789 case SPEED_1000: 790 rate = AQ_NIC_RATE_1G; 791 break; 792 793 case SPEED_2500: 794 rate = AQ_NIC_RATE_2GS; 795 break; 796 797 case SPEED_5000: 798 rate = AQ_NIC_RATE_5G; 799 break; 800 801 case SPEED_10000: 802 rate = AQ_NIC_RATE_10G; 803 break; 804 805 default: 806 err = -1; 807 goto err_exit; 808 break; 809 } 810 if (!(self->aq_nic_cfg.aq_hw_caps->link_speed_msk & rate)) { 811 err = -1; 812 goto err_exit; 813 } 814 815 self->aq_nic_cfg.is_autoneg = false; 816 } 817 818 err = self->aq_fw_ops->set_link_speed(self->aq_hw, rate); 819 if (err < 0) 820 goto err_exit; 821 822 self->aq_nic_cfg.link_speed_msk = rate; 823 824 err_exit: 825 return err; 826 } 827 828 struct aq_nic_cfg_s *aq_nic_get_cfg(struct aq_nic_s *self) 829 { 830 return &self->aq_nic_cfg; 831 } 832 833 u32 aq_nic_get_fw_version(struct aq_nic_s *self) 834 { 835 u32 fw_version = 0U; 836 837 self->aq_hw_ops->hw_get_fw_version(self->aq_hw, &fw_version); 838 839 return fw_version; 840 } 841 842 int aq_nic_stop(struct aq_nic_s *self) 843 { 844 struct aq_vec_s *aq_vec = NULL; 845 unsigned int i = 0U; 846 847 netif_tx_disable(self->ndev); 848 netif_carrier_off(self->ndev); 849 850 del_timer_sync(&self->service_timer); 851 852 self->aq_hw_ops->hw_irq_disable(self->aq_hw, AQ_CFG_IRQ_MASK); 853 854 if (self->aq_nic_cfg.is_polling) 855 del_timer_sync(&self->polling_timer); 856 else 857 aq_pci_func_free_irqs(self); 858 859 for (i = 0U, aq_vec = self->aq_vec[0]; 860 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) 861 aq_vec_stop(aq_vec); 862 863 return self->aq_hw_ops->hw_stop(self->aq_hw); 864 } 865 866 void aq_nic_deinit(struct aq_nic_s *self) 867 { 868 struct aq_vec_s *aq_vec = NULL; 869 unsigned int i = 0U; 870 871 if (!self) 872 goto err_exit; 873 874 for (i = 0U, aq_vec = self->aq_vec[0]; 875 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) 876 aq_vec_deinit(aq_vec); 877 878 if (self->power_state == AQ_HW_POWER_STATE_D0) { 879 (void)self->aq_hw_ops->hw_deinit(self->aq_hw); 880 } else { 881 (void)self->aq_hw_ops->hw_set_power(self->aq_hw, 882 self->power_state); 883 } 884 885 err_exit:; 886 } 887 888 void aq_nic_free_vectors(struct aq_nic_s *self) 889 { 890 unsigned int i = 0U; 891 892 if (!self) 893 goto err_exit; 894 895 for (i = ARRAY_SIZE(self->aq_vec); i--;) { 896 if (self->aq_vec[i]) { 897 aq_vec_free(self->aq_vec[i]); 898 self->aq_vec[i] = NULL; 899 } 900 } 901 902 err_exit:; 903 } 904 905 int aq_nic_change_pm_state(struct aq_nic_s *self, pm_message_t *pm_msg) 906 { 907 int err = 0; 908 909 if (!netif_running(self->ndev)) { 910 err = 0; 911 goto out; 912 } 913 rtnl_lock(); 914 if (pm_msg->event & PM_EVENT_SLEEP || pm_msg->event & PM_EVENT_FREEZE) { 915 self->power_state = AQ_HW_POWER_STATE_D3; 916 netif_device_detach(self->ndev); 917 netif_tx_stop_all_queues(self->ndev); 918 919 err = aq_nic_stop(self); 920 if (err < 0) 921 goto err_exit; 922 923 aq_nic_deinit(self); 924 } else { 925 err = aq_nic_init(self); 926 if (err < 0) 927 goto err_exit; 928 929 err = aq_nic_start(self); 930 if (err < 0) 931 goto err_exit; 932 933 netif_device_attach(self->ndev); 934 netif_tx_start_all_queues(self->ndev); 935 } 936 937 err_exit: 938 rtnl_unlock(); 939 out: 940 return err; 941 } 942 943 void aq_nic_shutdown(struct aq_nic_s *self) 944 { 945 int err = 0; 946 947 if (!self->ndev) 948 return; 949 950 rtnl_lock(); 951 952 netif_device_detach(self->ndev); 953 954 if (netif_running(self->ndev)) { 955 err = aq_nic_stop(self); 956 if (err < 0) 957 goto err_exit; 958 } 959 aq_nic_deinit(self); 960 961 err_exit: 962 rtnl_unlock(); 963 }