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 = min(cfg->vecs, self->irqvecs); 99 /* cfg->vecs should be power of 2 for RSS */ 100 if (cfg->vecs >= 8U) 101 cfg->vecs = 8U; 102 else if (cfg->vecs >= 4U) 103 cfg->vecs = 4U; 104 else if (cfg->vecs >= 2U) 105 cfg->vecs = 2U; 106 else 107 cfg->vecs = 1U; 108 109 cfg->num_rss_queues = min(cfg->vecs, AQ_CFG_NUM_RSS_QUEUES_DEF); 110 111 cfg->irq_type = aq_pci_func_get_irq_type(self); 112 113 if ((cfg->irq_type == AQ_HW_IRQ_LEGACY) || 114 (cfg->aq_hw_caps->vecs == 1U) || 115 (cfg->vecs == 1U)) { 116 cfg->is_rss = 0U; 117 cfg->vecs = 1U; 118 } 119 120 cfg->link_speed_msk &= cfg->aq_hw_caps->link_speed_msk; 121 cfg->hw_features = cfg->aq_hw_caps->hw_features; 122 } 123 124 static int aq_nic_update_link_status(struct aq_nic_s *self) 125 { 126 int err = self->aq_fw_ops->update_link_status(self->aq_hw); 127 128 if (err) 129 return err; 130 131 if (self->link_status.mbps != self->aq_hw->aq_link_status.mbps) { 132 pr_info("%s: link change old %d new %d\n", 133 AQ_CFG_DRV_NAME, self->link_status.mbps, 134 self->aq_hw->aq_link_status.mbps); 135 aq_nic_update_interrupt_moderation_settings(self); 136 } 137 138 self->link_status = self->aq_hw->aq_link_status; 139 if (!netif_carrier_ok(self->ndev) && self->link_status.mbps) { 140 aq_utils_obj_set(&self->flags, 141 AQ_NIC_FLAG_STARTED); 142 aq_utils_obj_clear(&self->flags, 143 AQ_NIC_LINK_DOWN); 144 netif_carrier_on(self->ndev); 145 netif_tx_wake_all_queues(self->ndev); 146 } 147 if (netif_carrier_ok(self->ndev) && !self->link_status.mbps) { 148 netif_carrier_off(self->ndev); 149 netif_tx_disable(self->ndev); 150 aq_utils_obj_set(&self->flags, AQ_NIC_LINK_DOWN); 151 } 152 return 0; 153 } 154 155 static void aq_nic_service_timer_cb(struct timer_list *t) 156 { 157 struct aq_nic_s *self = from_timer(self, t, service_timer); 158 int ctimer = AQ_CFG_SERVICE_TIMER_INTERVAL; 159 int err = 0; 160 161 if (aq_utils_obj_test(&self->flags, AQ_NIC_FLAGS_IS_NOT_READY)) 162 goto err_exit; 163 164 err = aq_nic_update_link_status(self); 165 if (err) 166 goto err_exit; 167 168 if (self->aq_fw_ops->update_stats) 169 self->aq_fw_ops->update_stats(self->aq_hw); 170 171 aq_nic_update_ndev_stats(self); 172 173 /* If no link - use faster timer rate to detect link up asap */ 174 if (!netif_carrier_ok(self->ndev)) 175 ctimer = max(ctimer / 2, 1); 176 177 err_exit: 178 mod_timer(&self->service_timer, jiffies + ctimer); 179 } 180 181 static void aq_nic_polling_timer_cb(struct timer_list *t) 182 { 183 struct aq_nic_s *self = from_timer(self, t, polling_timer); 184 struct aq_vec_s *aq_vec = NULL; 185 unsigned int i = 0U; 186 187 for (i = 0U, aq_vec = self->aq_vec[0]; 188 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) 189 aq_vec_isr(i, (void *)aq_vec); 190 191 mod_timer(&self->polling_timer, jiffies + 192 AQ_CFG_POLLING_TIMER_INTERVAL); 193 } 194 195 int aq_nic_ndev_register(struct aq_nic_s *self) 196 { 197 int err = 0; 198 199 if (!self->ndev) { 200 err = -EINVAL; 201 goto err_exit; 202 } 203 204 err = hw_atl_utils_initfw(self->aq_hw, &self->aq_fw_ops); 205 if (err) 206 goto err_exit; 207 208 err = self->aq_fw_ops->get_mac_permanent(self->aq_hw, 209 self->ndev->dev_addr); 210 if (err) 211 goto err_exit; 212 213 #if defined(AQ_CFG_MAC_ADDR_PERMANENT) 214 { 215 static u8 mac_addr_permanent[] = AQ_CFG_MAC_ADDR_PERMANENT; 216 217 ether_addr_copy(self->ndev->dev_addr, mac_addr_permanent); 218 } 219 #endif 220 221 for (self->aq_vecs = 0; self->aq_vecs < aq_nic_get_cfg(self)->vecs; 222 self->aq_vecs++) { 223 self->aq_vec[self->aq_vecs] = 224 aq_vec_alloc(self, self->aq_vecs, aq_nic_get_cfg(self)); 225 if (!self->aq_vec[self->aq_vecs]) { 226 err = -ENOMEM; 227 goto err_exit; 228 } 229 } 230 231 netif_carrier_off(self->ndev); 232 233 netif_tx_disable(self->ndev); 234 235 err = register_netdev(self->ndev); 236 if (err) 237 goto err_exit; 238 239 err_exit: 240 return err; 241 } 242 243 void aq_nic_ndev_init(struct aq_nic_s *self) 244 { 245 const struct aq_hw_caps_s *aq_hw_caps = self->aq_nic_cfg.aq_hw_caps; 246 struct aq_nic_cfg_s *aq_nic_cfg = &self->aq_nic_cfg; 247 248 self->ndev->hw_features |= aq_hw_caps->hw_features; 249 self->ndev->features = aq_hw_caps->hw_features; 250 self->ndev->vlan_features |= NETIF_F_HW_CSUM | NETIF_F_RXCSUM | 251 NETIF_F_RXHASH | NETIF_F_SG | NETIF_F_LRO; 252 self->ndev->priv_flags = aq_hw_caps->hw_priv_flags; 253 self->ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE; 254 255 self->ndev->mtu = aq_nic_cfg->mtu - ETH_HLEN; 256 self->ndev->max_mtu = aq_hw_caps->mtu - ETH_FCS_LEN - ETH_HLEN; 257 258 } 259 260 void aq_nic_set_tx_ring(struct aq_nic_s *self, unsigned int idx, 261 struct aq_ring_s *ring) 262 { 263 self->aq_ring_tx[idx] = ring; 264 } 265 266 struct net_device *aq_nic_get_ndev(struct aq_nic_s *self) 267 { 268 return self->ndev; 269 } 270 271 int aq_nic_init(struct aq_nic_s *self) 272 { 273 struct aq_vec_s *aq_vec = NULL; 274 int err = 0; 275 unsigned int i = 0U; 276 277 self->power_state = AQ_HW_POWER_STATE_D0; 278 err = self->aq_hw_ops->hw_reset(self->aq_hw); 279 if (err < 0) 280 goto err_exit; 281 282 err = self->aq_hw_ops->hw_init(self->aq_hw, 283 aq_nic_get_ndev(self)->dev_addr); 284 if (err < 0) 285 goto err_exit; 286 287 for (i = 0U, aq_vec = self->aq_vec[0]; 288 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) 289 aq_vec_init(aq_vec, self->aq_hw_ops, self->aq_hw); 290 291 netif_carrier_off(self->ndev); 292 293 err_exit: 294 return err; 295 } 296 297 int aq_nic_start(struct aq_nic_s *self) 298 { 299 struct aq_vec_s *aq_vec = NULL; 300 int err = 0; 301 unsigned int i = 0U; 302 303 err = self->aq_hw_ops->hw_multicast_list_set(self->aq_hw, 304 self->mc_list.ar, 305 self->mc_list.count); 306 if (err < 0) 307 goto err_exit; 308 309 err = self->aq_hw_ops->hw_packet_filter_set(self->aq_hw, 310 self->packet_filter); 311 if (err < 0) 312 goto err_exit; 313 314 for (i = 0U, aq_vec = self->aq_vec[0]; 315 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) { 316 err = aq_vec_start(aq_vec); 317 if (err < 0) 318 goto err_exit; 319 } 320 321 err = self->aq_hw_ops->hw_start(self->aq_hw); 322 if (err < 0) 323 goto err_exit; 324 325 err = aq_nic_update_interrupt_moderation_settings(self); 326 if (err) 327 goto err_exit; 328 timer_setup(&self->service_timer, aq_nic_service_timer_cb, 0); 329 mod_timer(&self->service_timer, jiffies + 330 AQ_CFG_SERVICE_TIMER_INTERVAL); 331 332 if (self->aq_nic_cfg.is_polling) { 333 timer_setup(&self->polling_timer, aq_nic_polling_timer_cb, 0); 334 mod_timer(&self->polling_timer, jiffies + 335 AQ_CFG_POLLING_TIMER_INTERVAL); 336 } else { 337 for (i = 0U, aq_vec = self->aq_vec[0]; 338 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) { 339 err = aq_pci_func_alloc_irq(self, i, 340 self->ndev->name, aq_vec, 341 aq_vec_get_affinity_mask(aq_vec)); 342 if (err < 0) 343 goto err_exit; 344 } 345 346 err = self->aq_hw_ops->hw_irq_enable(self->aq_hw, 347 AQ_CFG_IRQ_MASK); 348 if (err < 0) 349 goto err_exit; 350 } 351 352 err = netif_set_real_num_tx_queues(self->ndev, self->aq_vecs); 353 if (err < 0) 354 goto err_exit; 355 356 err = netif_set_real_num_rx_queues(self->ndev, self->aq_vecs); 357 if (err < 0) 358 goto err_exit; 359 360 netif_tx_start_all_queues(self->ndev); 361 362 err_exit: 363 return err; 364 } 365 366 static unsigned int aq_nic_map_skb(struct aq_nic_s *self, 367 struct sk_buff *skb, 368 struct aq_ring_s *ring) 369 { 370 unsigned int ret = 0U; 371 unsigned int nr_frags = skb_shinfo(skb)->nr_frags; 372 unsigned int frag_count = 0U; 373 unsigned int dx = ring->sw_tail; 374 struct aq_ring_buff_s *first = NULL; 375 struct aq_ring_buff_s *dx_buff = &ring->buff_ring[dx]; 376 377 if (unlikely(skb_is_gso(skb))) { 378 dx_buff->flags = 0U; 379 dx_buff->len_pkt = skb->len; 380 dx_buff->len_l2 = ETH_HLEN; 381 dx_buff->len_l3 = ip_hdrlen(skb); 382 dx_buff->len_l4 = tcp_hdrlen(skb); 383 dx_buff->mss = skb_shinfo(skb)->gso_size; 384 dx_buff->is_txc = 1U; 385 dx_buff->eop_index = 0xffffU; 386 387 dx_buff->is_ipv6 = 388 (ip_hdr(skb)->version == 6) ? 1U : 0U; 389 390 dx = aq_ring_next_dx(ring, dx); 391 dx_buff = &ring->buff_ring[dx]; 392 ++ret; 393 } 394 395 dx_buff->flags = 0U; 396 dx_buff->len = skb_headlen(skb); 397 dx_buff->pa = dma_map_single(aq_nic_get_dev(self), 398 skb->data, 399 dx_buff->len, 400 DMA_TO_DEVICE); 401 402 if (unlikely(dma_mapping_error(aq_nic_get_dev(self), dx_buff->pa))) 403 goto exit; 404 405 first = dx_buff; 406 dx_buff->len_pkt = skb->len; 407 dx_buff->is_sop = 1U; 408 dx_buff->is_mapped = 1U; 409 ++ret; 410 411 if (skb->ip_summed == CHECKSUM_PARTIAL) { 412 dx_buff->is_ip_cso = (htons(ETH_P_IP) == skb->protocol) ? 413 1U : 0U; 414 415 if (ip_hdr(skb)->version == 4) { 416 dx_buff->is_tcp_cso = 417 (ip_hdr(skb)->protocol == IPPROTO_TCP) ? 418 1U : 0U; 419 dx_buff->is_udp_cso = 420 (ip_hdr(skb)->protocol == IPPROTO_UDP) ? 421 1U : 0U; 422 } else if (ip_hdr(skb)->version == 6) { 423 dx_buff->is_tcp_cso = 424 (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP) ? 425 1U : 0U; 426 dx_buff->is_udp_cso = 427 (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP) ? 428 1U : 0U; 429 } 430 } 431 432 for (; nr_frags--; ++frag_count) { 433 unsigned int frag_len = 0U; 434 unsigned int buff_offset = 0U; 435 unsigned int buff_size = 0U; 436 dma_addr_t frag_pa; 437 skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_count]; 438 439 frag_len = skb_frag_size(frag); 440 441 while (frag_len) { 442 if (frag_len > AQ_CFG_TX_FRAME_MAX) 443 buff_size = AQ_CFG_TX_FRAME_MAX; 444 else 445 buff_size = frag_len; 446 447 frag_pa = skb_frag_dma_map(aq_nic_get_dev(self), 448 frag, 449 buff_offset, 450 buff_size, 451 DMA_TO_DEVICE); 452 453 if (unlikely(dma_mapping_error(aq_nic_get_dev(self), 454 frag_pa))) 455 goto mapping_error; 456 457 dx = aq_ring_next_dx(ring, dx); 458 dx_buff = &ring->buff_ring[dx]; 459 460 dx_buff->flags = 0U; 461 dx_buff->len = buff_size; 462 dx_buff->pa = frag_pa; 463 dx_buff->is_mapped = 1U; 464 dx_buff->eop_index = 0xffffU; 465 466 frag_len -= buff_size; 467 buff_offset += buff_size; 468 469 ++ret; 470 } 471 } 472 473 first->eop_index = dx; 474 dx_buff->is_eop = 1U; 475 dx_buff->skb = skb; 476 goto exit; 477 478 mapping_error: 479 for (dx = ring->sw_tail; 480 ret > 0; 481 --ret, dx = aq_ring_next_dx(ring, dx)) { 482 dx_buff = &ring->buff_ring[dx]; 483 484 if (!dx_buff->is_txc && dx_buff->pa) { 485 if (unlikely(dx_buff->is_sop)) { 486 dma_unmap_single(aq_nic_get_dev(self), 487 dx_buff->pa, 488 dx_buff->len, 489 DMA_TO_DEVICE); 490 } else { 491 dma_unmap_page(aq_nic_get_dev(self), 492 dx_buff->pa, 493 dx_buff->len, 494 DMA_TO_DEVICE); 495 } 496 } 497 } 498 499 exit: 500 return ret; 501 } 502 503 int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb) 504 { 505 struct aq_ring_s *ring = NULL; 506 unsigned int frags = 0U; 507 unsigned int vec = skb->queue_mapping % self->aq_nic_cfg.vecs; 508 unsigned int tc = 0U; 509 int err = NETDEV_TX_OK; 510 511 frags = skb_shinfo(skb)->nr_frags + 1; 512 513 ring = self->aq_ring_tx[AQ_NIC_TCVEC2RING(self, tc, vec)]; 514 515 if (frags > AQ_CFG_SKB_FRAGS_MAX) { 516 dev_kfree_skb_any(skb); 517 goto err_exit; 518 } 519 520 aq_ring_update_queue_state(ring); 521 522 /* Above status update may stop the queue. Check this. */ 523 if (__netif_subqueue_stopped(self->ndev, ring->idx)) { 524 err = NETDEV_TX_BUSY; 525 goto err_exit; 526 } 527 528 frags = aq_nic_map_skb(self, skb, ring); 529 530 if (likely(frags)) { 531 err = self->aq_hw_ops->hw_ring_tx_xmit(self->aq_hw, 532 ring, frags); 533 if (err >= 0) { 534 ++ring->stats.tx.packets; 535 ring->stats.tx.bytes += skb->len; 536 } 537 } else { 538 err = NETDEV_TX_BUSY; 539 } 540 541 err_exit: 542 return err; 543 } 544 545 int aq_nic_update_interrupt_moderation_settings(struct aq_nic_s *self) 546 { 547 return self->aq_hw_ops->hw_interrupt_moderation_set(self->aq_hw); 548 } 549 550 int aq_nic_set_packet_filter(struct aq_nic_s *self, unsigned int flags) 551 { 552 int err = 0; 553 554 err = self->aq_hw_ops->hw_packet_filter_set(self->aq_hw, flags); 555 if (err < 0) 556 goto err_exit; 557 558 self->packet_filter = flags; 559 560 err_exit: 561 return err; 562 } 563 564 int aq_nic_set_multicast_list(struct aq_nic_s *self, struct net_device *ndev) 565 { 566 struct netdev_hw_addr *ha = NULL; 567 unsigned int i = 0U; 568 569 self->mc_list.count = 0U; 570 571 netdev_for_each_mc_addr(ha, ndev) { 572 ether_addr_copy(self->mc_list.ar[i++], ha->addr); 573 ++self->mc_list.count; 574 575 if (i >= AQ_CFG_MULTICAST_ADDRESS_MAX) 576 break; 577 } 578 579 if (i >= AQ_CFG_MULTICAST_ADDRESS_MAX) { 580 /* Number of filters is too big: atlantic does not support this. 581 * Force all multi filter to support this. 582 * With this we disable all UC filters and setup "all pass" 583 * multicast mask 584 */ 585 self->packet_filter |= IFF_ALLMULTI; 586 self->aq_nic_cfg.mc_list_count = 0; 587 return self->aq_hw_ops->hw_packet_filter_set(self->aq_hw, 588 self->packet_filter); 589 } else { 590 return self->aq_hw_ops->hw_multicast_list_set(self->aq_hw, 591 self->mc_list.ar, 592 self->mc_list.count); 593 } 594 } 595 596 int aq_nic_set_mtu(struct aq_nic_s *self, int new_mtu) 597 { 598 self->aq_nic_cfg.mtu = new_mtu; 599 600 return 0; 601 } 602 603 int aq_nic_set_mac(struct aq_nic_s *self, struct net_device *ndev) 604 { 605 return self->aq_hw_ops->hw_set_mac_address(self->aq_hw, ndev->dev_addr); 606 } 607 608 unsigned int aq_nic_get_link_speed(struct aq_nic_s *self) 609 { 610 return self->link_status.mbps; 611 } 612 613 int aq_nic_get_regs(struct aq_nic_s *self, struct ethtool_regs *regs, void *p) 614 { 615 u32 *regs_buff = p; 616 int err = 0; 617 618 regs->version = 1; 619 620 err = self->aq_hw_ops->hw_get_regs(self->aq_hw, 621 self->aq_nic_cfg.aq_hw_caps, 622 regs_buff); 623 if (err < 0) 624 goto err_exit; 625 626 err_exit: 627 return err; 628 } 629 630 int aq_nic_get_regs_count(struct aq_nic_s *self) 631 { 632 return self->aq_nic_cfg.aq_hw_caps->mac_regs_count; 633 } 634 635 void aq_nic_get_stats(struct aq_nic_s *self, u64 *data) 636 { 637 unsigned int i = 0U; 638 unsigned int count = 0U; 639 struct aq_vec_s *aq_vec = NULL; 640 struct aq_stats_s *stats = self->aq_hw_ops->hw_get_hw_stats(self->aq_hw); 641 642 if (!stats) 643 goto err_exit; 644 645 data[i] = stats->uprc + stats->mprc + stats->bprc; 646 data[++i] = stats->uprc; 647 data[++i] = stats->mprc; 648 data[++i] = stats->bprc; 649 data[++i] = stats->erpt; 650 data[++i] = stats->uptc + stats->mptc + stats->bptc; 651 data[++i] = stats->uptc; 652 data[++i] = stats->mptc; 653 data[++i] = stats->bptc; 654 data[++i] = stats->ubrc; 655 data[++i] = stats->ubtc; 656 data[++i] = stats->mbrc; 657 data[++i] = stats->mbtc; 658 data[++i] = stats->bbrc; 659 data[++i] = stats->bbtc; 660 data[++i] = stats->ubrc + stats->mbrc + stats->bbrc; 661 data[++i] = stats->ubtc + stats->mbtc + stats->bbtc; 662 data[++i] = stats->dma_pkt_rc; 663 data[++i] = stats->dma_pkt_tc; 664 data[++i] = stats->dma_oct_rc; 665 data[++i] = stats->dma_oct_tc; 666 data[++i] = stats->dpc; 667 668 i++; 669 670 data += i; 671 672 for (i = 0U, aq_vec = self->aq_vec[0]; 673 aq_vec && self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) { 674 data += count; 675 aq_vec_get_sw_stats(aq_vec, data, &count); 676 } 677 678 err_exit:; 679 } 680 681 static void aq_nic_update_ndev_stats(struct aq_nic_s *self) 682 { 683 struct net_device *ndev = self->ndev; 684 struct aq_stats_s *stats = self->aq_hw_ops->hw_get_hw_stats(self->aq_hw); 685 686 ndev->stats.rx_packets = stats->uprc + stats->mprc + stats->bprc; 687 ndev->stats.rx_bytes = stats->ubrc + stats->mbrc + stats->bbrc; 688 ndev->stats.rx_errors = stats->erpr; 689 ndev->stats.tx_packets = stats->uptc + stats->mptc + stats->bptc; 690 ndev->stats.tx_bytes = stats->ubtc + stats->mbtc + stats->bbtc; 691 ndev->stats.tx_errors = stats->erpt; 692 ndev->stats.multicast = stats->mprc; 693 } 694 695 void aq_nic_get_link_ksettings(struct aq_nic_s *self, 696 struct ethtool_link_ksettings *cmd) 697 { 698 if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE) 699 cmd->base.port = PORT_FIBRE; 700 else 701 cmd->base.port = PORT_TP; 702 /* This driver supports only 10G capable adapters, so DUPLEX_FULL */ 703 cmd->base.duplex = DUPLEX_FULL; 704 cmd->base.autoneg = self->aq_nic_cfg.is_autoneg; 705 706 ethtool_link_ksettings_zero_link_mode(cmd, supported); 707 708 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_10G) 709 ethtool_link_ksettings_add_link_mode(cmd, supported, 710 10000baseT_Full); 711 712 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_5G) 713 ethtool_link_ksettings_add_link_mode(cmd, supported, 714 5000baseT_Full); 715 716 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_2GS) 717 ethtool_link_ksettings_add_link_mode(cmd, supported, 718 2500baseT_Full); 719 720 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_1G) 721 ethtool_link_ksettings_add_link_mode(cmd, supported, 722 1000baseT_Full); 723 724 if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_100M) 725 ethtool_link_ksettings_add_link_mode(cmd, supported, 726 100baseT_Full); 727 728 if (self->aq_nic_cfg.aq_hw_caps->flow_control) 729 ethtool_link_ksettings_add_link_mode(cmd, supported, 730 Pause); 731 732 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 733 734 if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE) 735 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); 736 else 737 ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 738 739 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 740 741 if (self->aq_nic_cfg.is_autoneg) 742 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); 743 744 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_10G) 745 ethtool_link_ksettings_add_link_mode(cmd, advertising, 746 10000baseT_Full); 747 748 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_5G) 749 ethtool_link_ksettings_add_link_mode(cmd, advertising, 750 5000baseT_Full); 751 752 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_2GS) 753 ethtool_link_ksettings_add_link_mode(cmd, advertising, 754 2500baseT_Full); 755 756 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_1G) 757 ethtool_link_ksettings_add_link_mode(cmd, advertising, 758 1000baseT_Full); 759 760 if (self->aq_nic_cfg.link_speed_msk & AQ_NIC_RATE_100M) 761 ethtool_link_ksettings_add_link_mode(cmd, advertising, 762 100baseT_Full); 763 764 if (self->aq_nic_cfg.flow_control) 765 ethtool_link_ksettings_add_link_mode(cmd, advertising, 766 Pause); 767 768 if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE) 769 ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE); 770 else 771 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 772 } 773 774 int aq_nic_set_link_ksettings(struct aq_nic_s *self, 775 const struct ethtool_link_ksettings *cmd) 776 { 777 u32 speed = 0U; 778 u32 rate = 0U; 779 int err = 0; 780 781 if (cmd->base.autoneg == AUTONEG_ENABLE) { 782 rate = self->aq_nic_cfg.aq_hw_caps->link_speed_msk; 783 self->aq_nic_cfg.is_autoneg = true; 784 } else { 785 speed = cmd->base.speed; 786 787 switch (speed) { 788 case SPEED_100: 789 rate = AQ_NIC_RATE_100M; 790 break; 791 792 case SPEED_1000: 793 rate = AQ_NIC_RATE_1G; 794 break; 795 796 case SPEED_2500: 797 rate = AQ_NIC_RATE_2GS; 798 break; 799 800 case SPEED_5000: 801 rate = AQ_NIC_RATE_5G; 802 break; 803 804 case SPEED_10000: 805 rate = AQ_NIC_RATE_10G; 806 break; 807 808 default: 809 err = -1; 810 goto err_exit; 811 break; 812 } 813 if (!(self->aq_nic_cfg.aq_hw_caps->link_speed_msk & rate)) { 814 err = -1; 815 goto err_exit; 816 } 817 818 self->aq_nic_cfg.is_autoneg = false; 819 } 820 821 err = self->aq_fw_ops->set_link_speed(self->aq_hw, rate); 822 if (err < 0) 823 goto err_exit; 824 825 self->aq_nic_cfg.link_speed_msk = rate; 826 827 err_exit: 828 return err; 829 } 830 831 struct aq_nic_cfg_s *aq_nic_get_cfg(struct aq_nic_s *self) 832 { 833 return &self->aq_nic_cfg; 834 } 835 836 u32 aq_nic_get_fw_version(struct aq_nic_s *self) 837 { 838 u32 fw_version = 0U; 839 840 self->aq_hw_ops->hw_get_fw_version(self->aq_hw, &fw_version); 841 842 return fw_version; 843 } 844 845 int aq_nic_stop(struct aq_nic_s *self) 846 { 847 struct aq_vec_s *aq_vec = NULL; 848 unsigned int i = 0U; 849 850 netif_tx_disable(self->ndev); 851 netif_carrier_off(self->ndev); 852 853 del_timer_sync(&self->service_timer); 854 855 self->aq_hw_ops->hw_irq_disable(self->aq_hw, AQ_CFG_IRQ_MASK); 856 857 if (self->aq_nic_cfg.is_polling) 858 del_timer_sync(&self->polling_timer); 859 else 860 aq_pci_func_free_irqs(self); 861 862 for (i = 0U, aq_vec = self->aq_vec[0]; 863 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) 864 aq_vec_stop(aq_vec); 865 866 return self->aq_hw_ops->hw_stop(self->aq_hw); 867 } 868 869 void aq_nic_deinit(struct aq_nic_s *self) 870 { 871 struct aq_vec_s *aq_vec = NULL; 872 unsigned int i = 0U; 873 874 if (!self) 875 goto err_exit; 876 877 for (i = 0U, aq_vec = self->aq_vec[0]; 878 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) 879 aq_vec_deinit(aq_vec); 880 881 if (self->power_state == AQ_HW_POWER_STATE_D0) { 882 (void)self->aq_hw_ops->hw_deinit(self->aq_hw); 883 } else { 884 (void)self->aq_hw_ops->hw_set_power(self->aq_hw, 885 self->power_state); 886 } 887 888 err_exit:; 889 } 890 891 void aq_nic_free_vectors(struct aq_nic_s *self) 892 { 893 unsigned int i = 0U; 894 895 if (!self) 896 goto err_exit; 897 898 for (i = ARRAY_SIZE(self->aq_vec); i--;) { 899 if (self->aq_vec[i]) { 900 aq_vec_free(self->aq_vec[i]); 901 self->aq_vec[i] = NULL; 902 } 903 } 904 905 err_exit:; 906 } 907 908 int aq_nic_change_pm_state(struct aq_nic_s *self, pm_message_t *pm_msg) 909 { 910 int err = 0; 911 912 if (!netif_running(self->ndev)) { 913 err = 0; 914 goto out; 915 } 916 rtnl_lock(); 917 if (pm_msg->event & PM_EVENT_SLEEP || pm_msg->event & PM_EVENT_FREEZE) { 918 self->power_state = AQ_HW_POWER_STATE_D3; 919 netif_device_detach(self->ndev); 920 netif_tx_stop_all_queues(self->ndev); 921 922 err = aq_nic_stop(self); 923 if (err < 0) 924 goto err_exit; 925 926 aq_nic_deinit(self); 927 } else { 928 err = aq_nic_init(self); 929 if (err < 0) 930 goto err_exit; 931 932 err = aq_nic_start(self); 933 if (err < 0) 934 goto err_exit; 935 936 netif_device_attach(self->ndev); 937 netif_tx_start_all_queues(self->ndev); 938 } 939 940 err_exit: 941 rtnl_unlock(); 942 out: 943 return err; 944 } 945 946 void aq_nic_shutdown(struct aq_nic_s *self) 947 { 948 int err = 0; 949 950 if (!self->ndev) 951 return; 952 953 rtnl_lock(); 954 955 netif_device_detach(self->ndev); 956 957 if (netif_running(self->ndev)) { 958 err = aq_nic_stop(self); 959 if (err < 0) 960 goto err_exit; 961 } 962 aq_nic_deinit(self); 963 964 err_exit: 965 rtnl_unlock(); 966 }