drivers/net/ethernet/aquantia/atlantic/aq_nic.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * aQuantia Corporation Network Driver
   4  * Copyright (C) 2014-2019 aQuantia Corporation. All rights reserved
   5  */
   6
   7 /* File aq_nic.c: Definition of common code for NIC. */
   8
   9 #include "aq_nic.h"
  10 #include "aq_ring.h"
  11 #include "aq_vec.h"
  12 #include "aq_hw.h"
  13 #include "aq_pci_func.h"
  14 #include "aq_main.h"
  15 #include "aq_phy.h"
  16 #include "aq_ptp.h"
  17 #include "aq_filters.h"
  18
  19 #include <linux/moduleparam.h>
  20 #include <linux/netdevice.h>
  21 #include <linux/etherdevice.h>
  22 #include <linux/timer.h>
  23 #include <linux/cpu.h>
  24 #include <linux/ip.h>
  25 #include <linux/tcp.h>
  26 #include <net/ip.h>
  27
  28 static unsigned int aq_itr = AQ_CFG_INTERRUPT_MODERATION_AUTO;
  29 module_param_named(aq_itr, aq_itr, uint, 0644);
  30 MODULE_PARM_DESC(aq_itr, "Interrupt throttling mode");
  31
  32 static unsigned int aq_itr_tx;
  33 module_param_named(aq_itr_tx, aq_itr_tx, uint, 0644);
  34 MODULE_PARM_DESC(aq_itr_tx, "TX interrupt throttle rate");
  35
  36 static unsigned int aq_itr_rx;
  37 module_param_named(aq_itr_rx, aq_itr_rx, uint, 0644);
  38 MODULE_PARM_DESC(aq_itr_rx, "RX interrupt throttle rate");
  39
  40 static void aq_nic_update_ndev_stats(struct aq_nic_s *self);
  41
  42 static void aq_nic_rss_init(struct aq_nic_s *self, unsigned int num_rss_queues)
  43 {
  44         struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
  45         struct aq_rss_parameters *rss_params = &cfg->aq_rss;
  46         int i = 0;
  47
  48         static u8 rss_key[AQ_CFG_RSS_HASHKEY_SIZE] = {
  49                 0x1e, 0xad, 0x71, 0x87, 0x65, 0xfc, 0x26, 0x7d,
  50                 0x0d, 0x45, 0x67, 0x74, 0xcd, 0x06, 0x1a, 0x18,
  51                 0xb6, 0xc1, 0xf0, 0xc7, 0xbb, 0x18, 0xbe, 0xf8,
  52                 0x19, 0x13, 0x4b, 0xa9, 0xd0, 0x3e, 0xfe, 0x70,
  53                 0x25, 0x03, 0xab, 0x50, 0x6a, 0x8b, 0x82, 0x0c
  54         };
  55
  56         rss_params->hash_secret_key_size = sizeof(rss_key);
  57         memcpy(rss_params->hash_secret_key, rss_key, sizeof(rss_key));
  58         rss_params->indirection_table_size = AQ_CFG_RSS_INDIRECTION_TABLE_MAX;
  59
  60         for (i = rss_params->indirection_table_size; i--;)
  61                 rss_params->indirection_table[i] = i & (num_rss_queues - 1);
  62 }
  63
  64 /* Checks hw_caps and 'corrects' aq_nic_cfg in runtime */
  65 void aq_nic_cfg_start(struct aq_nic_s *self)
  66 {
  67         struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
  68
  69         cfg->tcs = AQ_CFG_TCS_DEF;
  70
  71         cfg->is_polling = AQ_CFG_IS_POLLING_DEF;
  72
  73         cfg->itr = aq_itr;
  74         cfg->tx_itr = aq_itr_tx;
  75         cfg->rx_itr = aq_itr_rx;
  76
  77         cfg->rxpageorder = AQ_CFG_RX_PAGEORDER;
  78         cfg->is_rss = AQ_CFG_IS_RSS_DEF;
  79         cfg->num_rss_queues = AQ_CFG_NUM_RSS_QUEUES_DEF;
  80         cfg->aq_rss.base_cpu_number = AQ_CFG_RSS_BASE_CPU_NUM_DEF;
  81         cfg->flow_control = AQ_CFG_FC_MODE;
  82         cfg->wol = AQ_CFG_WOL_MODES;
  83
  84         cfg->mtu = AQ_CFG_MTU_DEF;
  85         cfg->link_speed_msk = AQ_CFG_SPEED_MSK;
  86         cfg->is_autoneg = AQ_CFG_IS_AUTONEG_DEF;
  87
  88         cfg->is_lro = AQ_CFG_IS_LRO_DEF;
  89
  90         /*descriptors */
  91         cfg->rxds = min(cfg->aq_hw_caps->rxds_max, AQ_CFG_RXDS_DEF);
  92         cfg->txds = min(cfg->aq_hw_caps->txds_max, AQ_CFG_TXDS_DEF);
  93
  94         /*rss rings */
  95         cfg->vecs = min(cfg->aq_hw_caps->vecs, AQ_CFG_VECS_DEF);
  96         cfg->vecs = min(cfg->vecs, num_online_cpus());
  97         if (self->irqvecs > AQ_HW_SERVICE_IRQS)
  98                 cfg->vecs = min(cfg->vecs, self->irqvecs - AQ_HW_SERVICE_IRQS);
  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         aq_nic_rss_init(self, cfg->num_rss_queues);
 112
 113         cfg->irq_type = aq_pci_func_get_irq_type(self);
 114
 115         if ((cfg->irq_type == AQ_HW_IRQ_LEGACY) ||
 116             (cfg->aq_hw_caps->vecs == 1U) ||
 117             (cfg->vecs == 1U)) {
 118                 cfg->is_rss = 0U;
 119                 cfg->vecs = 1U;
 120         }
 121
 122         /* Check if we have enough vectors allocated for
 123          * link status IRQ. If no - we'll know link state from
 124          * slower service task.
 125          */
 126         if (AQ_HW_SERVICE_IRQS > 0 && cfg->vecs + 1 <= self->irqvecs)
 127                 cfg->link_irq_vec = cfg->vecs;
 128         else
 129                 cfg->link_irq_vec = 0;
 130
 131         cfg->link_speed_msk &= cfg->aq_hw_caps->link_speed_msk;
 132         cfg->features = cfg->aq_hw_caps->hw_features;
 133         cfg->is_vlan_rx_strip = !!(cfg->features & NETIF_F_HW_VLAN_CTAG_RX);
 134         cfg->is_vlan_tx_insert = !!(cfg->features & NETIF_F_HW_VLAN_CTAG_TX);
 135         cfg->is_vlan_force_promisc = true;
 136 }
 137
 138 static int aq_nic_update_link_status(struct aq_nic_s *self)
 139 {
 140         int err = self->aq_fw_ops->update_link_status(self->aq_hw);
 141         u32 fc = 0;
 142
 143         if (err)
 144                 return err;
 145
 146         if (self->link_status.mbps != self->aq_hw->aq_link_status.mbps) {
 147                 netdev_info(self->ndev, "%s: link change old %d new %d\n",
 148                             AQ_CFG_DRV_NAME, self->link_status.mbps,
 149                             self->aq_hw->aq_link_status.mbps);
 150                 aq_nic_update_interrupt_moderation_settings(self);
 151
 152                 if (self->aq_ptp) {
 153                         aq_ptp_clock_init(self);
 154                         aq_ptp_tm_offset_set(self,
 155                                              self->aq_hw->aq_link_status.mbps);
 156                         aq_ptp_link_change(self);
 157                 }
 158
 159                 /* Driver has to update flow control settings on RX block
 160                  * on any link event.
 161                  * We should query FW whether it negotiated FC.
 162                  */
 163                 if (self->aq_fw_ops->get_flow_control)
 164                         self->aq_fw_ops->get_flow_control(self->aq_hw, &fc);
 165                 if (self->aq_hw_ops->hw_set_fc)
 166                         self->aq_hw_ops->hw_set_fc(self->aq_hw, fc, 0);
 167         }
 168
 169         self->link_status = self->aq_hw->aq_link_status;
 170         if (!netif_carrier_ok(self->ndev) && self->link_status.mbps) {
 171                 aq_utils_obj_set(&self->flags,
 172                                  AQ_NIC_FLAG_STARTED);
 173                 aq_utils_obj_clear(&self->flags,
 174                                    AQ_NIC_LINK_DOWN);
 175                 netif_carrier_on(self->ndev);
 176                 netif_tx_wake_all_queues(self->ndev);
 177         }
 178         if (netif_carrier_ok(self->ndev) && !self->link_status.mbps) {
 179                 netif_carrier_off(self->ndev);
 180                 netif_tx_disable(self->ndev);
 181                 aq_utils_obj_set(&self->flags, AQ_NIC_LINK_DOWN);
 182         }
 183         return 0;
 184 }
 185
 186 static irqreturn_t aq_linkstate_threaded_isr(int irq, void *private)
 187 {
 188         struct aq_nic_s *self = private;
 189
 190         if (!self)
 191                 return IRQ_NONE;
 192
 193         aq_nic_update_link_status(self);
 194
 195         self->aq_hw_ops->hw_irq_enable(self->aq_hw,
 196                                        BIT(self->aq_nic_cfg.link_irq_vec));
 197         return IRQ_HANDLED;
 198 }
 199
 200 static void aq_nic_service_task(struct work_struct *work)
 201 {
 202         struct aq_nic_s *self = container_of(work, struct aq_nic_s,
 203                                              service_task);
 204         int err;
 205
 206         aq_ptp_service_task(self);
 207
 208         if (aq_utils_obj_test(&self->flags, AQ_NIC_FLAGS_IS_NOT_READY))
 209                 return;
 210
 211         err = aq_nic_update_link_status(self);
 212         if (err)
 213                 return;
 214
 215         mutex_lock(&self->fwreq_mutex);
 216         if (self->aq_fw_ops->update_stats)
 217                 self->aq_fw_ops->update_stats(self->aq_hw);
 218         mutex_unlock(&self->fwreq_mutex);
 219
 220         aq_nic_update_ndev_stats(self);
 221 }
 222
 223 static void aq_nic_service_timer_cb(struct timer_list *t)
 224 {
 225         struct aq_nic_s *self = from_timer(self, t, service_timer);
 226
 227         mod_timer(&self->service_timer, jiffies + AQ_CFG_SERVICE_TIMER_INTERVAL);
 228
 229         aq_ndev_schedule_work(&self->service_task);
 230 }
 231
 232 static void aq_nic_polling_timer_cb(struct timer_list *t)
 233 {
 234         struct aq_nic_s *self = from_timer(self, t, polling_timer);
 235         struct aq_vec_s *aq_vec = NULL;
 236         unsigned int i = 0U;
 237
 238         for (i = 0U, aq_vec = self->aq_vec[0];
 239                 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
 240                 aq_vec_isr(i, (void *)aq_vec);
 241
 242         mod_timer(&self->polling_timer, jiffies +
 243                   AQ_CFG_POLLING_TIMER_INTERVAL);
 244 }
 245
 246 int aq_nic_ndev_register(struct aq_nic_s *self)
 247 {
 248         int err = 0;
 249
 250         if (!self->ndev) {
 251                 err = -EINVAL;
 252                 goto err_exit;
 253         }
 254
 255         err = hw_atl_utils_initfw(self->aq_hw, &self->aq_fw_ops);
 256         if (err)
 257                 goto err_exit;
 258
 259         mutex_lock(&self->fwreq_mutex);
 260         err = self->aq_fw_ops->get_mac_permanent(self->aq_hw,
 261                             self->ndev->dev_addr);
 262         mutex_unlock(&self->fwreq_mutex);
 263         if (err)
 264                 goto err_exit;
 265
 266 #if defined(AQ_CFG_MAC_ADDR_PERMANENT)
 267         {
 268                 static u8 mac_addr_permanent[] = AQ_CFG_MAC_ADDR_PERMANENT;
 269
 270                 ether_addr_copy(self->ndev->dev_addr, mac_addr_permanent);
 271         }
 272 #endif
 273
 274         for (self->aq_vecs = 0; self->aq_vecs < aq_nic_get_cfg(self)->vecs;
 275              self->aq_vecs++) {
 276                 self->aq_vec[self->aq_vecs] =
 277                     aq_vec_alloc(self, self->aq_vecs, aq_nic_get_cfg(self));
 278                 if (!self->aq_vec[self->aq_vecs]) {
 279                         err = -ENOMEM;
 280                         goto err_exit;
 281                 }
 282         }
 283
 284         netif_carrier_off(self->ndev);
 285
 286         netif_tx_disable(self->ndev);
 287
 288         err = register_netdev(self->ndev);
 289         if (err)
 290                 goto err_exit;
 291
 292 err_exit:
 293         return err;
 294 }
 295
 296 void aq_nic_ndev_init(struct aq_nic_s *self)
 297 {
 298         const struct aq_hw_caps_s *aq_hw_caps = self->aq_nic_cfg.aq_hw_caps;
 299         struct aq_nic_cfg_s *aq_nic_cfg = &self->aq_nic_cfg;
 300
 301         self->ndev->hw_features |= aq_hw_caps->hw_features;
 302         self->ndev->features = aq_hw_caps->hw_features;
 303         self->ndev->vlan_features |= NETIF_F_HW_CSUM | NETIF_F_RXCSUM |
 304                                      NETIF_F_RXHASH | NETIF_F_SG |
 305                                      NETIF_F_LRO | NETIF_F_TSO;
 306         self->ndev->priv_flags = aq_hw_caps->hw_priv_flags;
 307         self->ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
 308
 309         self->msg_enable = NETIF_MSG_DRV | NETIF_MSG_LINK;
 310         self->ndev->mtu = aq_nic_cfg->mtu - ETH_HLEN;
 311         self->ndev->max_mtu = aq_hw_caps->mtu - ETH_FCS_LEN - ETH_HLEN;
 312
 313 }
 314
 315 void aq_nic_set_tx_ring(struct aq_nic_s *self, unsigned int idx,
 316                         struct aq_ring_s *ring)
 317 {
 318         self->aq_ring_tx[idx] = ring;
 319 }
 320
 321 struct net_device *aq_nic_get_ndev(struct aq_nic_s *self)
 322 {
 323         return self->ndev;
 324 }
 325
 326 int aq_nic_init(struct aq_nic_s *self)
 327 {
 328         struct aq_vec_s *aq_vec = NULL;
 329         int err = 0;
 330         unsigned int i = 0U;
 331
 332         self->power_state = AQ_HW_POWER_STATE_D0;
 333         mutex_lock(&self->fwreq_mutex);
 334         err = self->aq_hw_ops->hw_reset(self->aq_hw);
 335         mutex_unlock(&self->fwreq_mutex);
 336         if (err < 0)
 337                 goto err_exit;
 338
 339         err = self->aq_hw_ops->hw_init(self->aq_hw,
 340                                        aq_nic_get_ndev(self)->dev_addr);
 341         if (err < 0)
 342                 goto err_exit;
 343
 344         if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_TP) {
 345                 self->aq_hw->phy_id = HW_ATL_PHY_ID_MAX;
 346                 err = aq_phy_init(self->aq_hw);
 347         }
 348
 349         for (i = 0U, aq_vec = self->aq_vec[0];
 350                 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
 351                 aq_vec_init(aq_vec, self->aq_hw_ops, self->aq_hw);
 352
 353         err = aq_ptp_init(self, self->irqvecs - 1);
 354         if (err < 0)
 355                 goto err_exit;
 356
 357         err = aq_ptp_ring_alloc(self);
 358         if (err < 0)
 359                 goto err_exit;
 360
 361         err = aq_ptp_ring_init(self);
 362         if (err < 0)
 363                 goto err_exit;
 364
 365         netif_carrier_off(self->ndev);
 366
 367 err_exit:
 368         return err;
 369 }
 370
 371 int aq_nic_start(struct aq_nic_s *self)
 372 {
 373         struct aq_vec_s *aq_vec = NULL;
 374         int err = 0;
 375         unsigned int i = 0U;
 376
 377         err = self->aq_hw_ops->hw_multicast_list_set(self->aq_hw,
 378                                                      self->mc_list.ar,
 379                                                      self->mc_list.count);
 380         if (err < 0)
 381                 goto err_exit;
 382
 383         err = self->aq_hw_ops->hw_packet_filter_set(self->aq_hw,
 384                                                     self->packet_filter);
 385         if (err < 0)
 386                 goto err_exit;
 387
 388         for (i = 0U, aq_vec = self->aq_vec[0];
 389                 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
 390                 err = aq_vec_start(aq_vec);
 391                 if (err < 0)
 392                         goto err_exit;
 393         }
 394
 395         err = aq_ptp_ring_start(self);
 396         if (err < 0)
 397                 goto err_exit;
 398
 399         err = self->aq_hw_ops->hw_start(self->aq_hw);
 400         if (err < 0)
 401                 goto err_exit;
 402
 403         err = aq_nic_update_interrupt_moderation_settings(self);
 404         if (err)
 405                 goto err_exit;
 406
 407         INIT_WORK(&self->service_task, aq_nic_service_task);
 408
 409         aq_nic_set_loopback(self);
 410
 411         timer_setup(&self->service_timer, aq_nic_service_timer_cb, 0);
 412         aq_nic_service_timer_cb(&self->service_timer);
 413
 414         if (self->aq_nic_cfg.is_polling) {
 415                 timer_setup(&self->polling_timer, aq_nic_polling_timer_cb, 0);
 416                 mod_timer(&self->polling_timer, jiffies +
 417                           AQ_CFG_POLLING_TIMER_INTERVAL);
 418         } else {
 419                 for (i = 0U, aq_vec = self->aq_vec[0];
 420                         self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
 421                         err = aq_pci_func_alloc_irq(self, i, self->ndev->name,
 422                                                     aq_vec_isr, aq_vec,
 423                                                     aq_vec_get_affinity_mask(aq_vec));
 424                         if (err < 0)
 425                                 goto err_exit;
 426                 }
 427
 428                 err = aq_ptp_irq_alloc(self);
 429                 if (err < 0)
 430                         goto err_exit;
 431
 432                 if (self->aq_nic_cfg.link_irq_vec) {
 433                         int irqvec = pci_irq_vector(self->pdev,
 434                                                    self->aq_nic_cfg.link_irq_vec);
 435                         err = request_threaded_irq(irqvec, NULL,
 436                                                    aq_linkstate_threaded_isr,
 437                                                    IRQF_SHARED | IRQF_ONESHOT,
 438                                                    self->ndev->name, self);
 439                         if (err < 0)
 440                                 goto err_exit;
 441                         self->msix_entry_mask |= (1 << self->aq_nic_cfg.link_irq_vec);
 442                 }
 443
 444                 err = self->aq_hw_ops->hw_irq_enable(self->aq_hw,
 445                                                      AQ_CFG_IRQ_MASK);
 446                 if (err < 0)
 447                         goto err_exit;
 448         }
 449
 450         err = netif_set_real_num_tx_queues(self->ndev, self->aq_vecs);
 451         if (err < 0)
 452                 goto err_exit;
 453
 454         err = netif_set_real_num_rx_queues(self->ndev, self->aq_vecs);
 455         if (err < 0)
 456                 goto err_exit;
 457
 458         netif_tx_start_all_queues(self->ndev);
 459
 460 err_exit:
 461         return err;
 462 }
 463
 464 unsigned int aq_nic_map_skb(struct aq_nic_s *self, struct sk_buff *skb,
 465                             struct aq_ring_s *ring)
 466 {
 467         unsigned int ret = 0U;
 468         unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
 469         unsigned int frag_count = 0U;
 470         unsigned int dx = ring->sw_tail;
 471         struct aq_ring_buff_s *first = NULL;
 472         struct aq_ring_buff_s *dx_buff = &ring->buff_ring[dx];
 473         bool need_context_tag = false;
 474
 475         dx_buff->flags = 0U;
 476
 477         if (unlikely(skb_is_gso(skb))) {
 478                 dx_buff->mss = skb_shinfo(skb)->gso_size;
 479                 dx_buff->is_gso = 1U;
 480                 dx_buff->len_pkt = skb->len;
 481                 dx_buff->len_l2 = ETH_HLEN;
 482                 dx_buff->len_l3 = ip_hdrlen(skb);
 483                 dx_buff->len_l4 = tcp_hdrlen(skb);
 484                 dx_buff->eop_index = 0xffffU;
 485                 dx_buff->is_ipv6 =
 486                         (ip_hdr(skb)->version == 6) ? 1U : 0U;
 487                 need_context_tag = true;
 488         }
 489
 490         if (self->aq_nic_cfg.is_vlan_tx_insert && skb_vlan_tag_present(skb)) {
 491                 dx_buff->vlan_tx_tag = skb_vlan_tag_get(skb);
 492                 dx_buff->len_pkt = skb->len;
 493                 dx_buff->is_vlan = 1U;
 494                 need_context_tag = true;
 495         }
 496
 497         if (need_context_tag) {
 498                 dx = aq_ring_next_dx(ring, dx);
 499                 dx_buff = &ring->buff_ring[dx];
 500                 dx_buff->flags = 0U;
 501                 ++ret;
 502         }
 503
 504         dx_buff->len = skb_headlen(skb);
 505         dx_buff->pa = dma_map_single(aq_nic_get_dev(self),
 506                                      skb->data,
 507                                      dx_buff->len,
 508                                      DMA_TO_DEVICE);
 509
 510         if (unlikely(dma_mapping_error(aq_nic_get_dev(self), dx_buff->pa)))
 511                 goto exit;
 512
 513         first = dx_buff;
 514         dx_buff->len_pkt = skb->len;
 515         dx_buff->is_sop = 1U;
 516         dx_buff->is_mapped = 1U;
 517         ++ret;
 518
 519         if (skb->ip_summed == CHECKSUM_PARTIAL) {
 520                 dx_buff->is_ip_cso = (htons(ETH_P_IP) == skb->protocol) ?
 521                         1U : 0U;
 522
 523                 if (ip_hdr(skb)->version == 4) {
 524                         dx_buff->is_tcp_cso =
 525                                 (ip_hdr(skb)->protocol == IPPROTO_TCP) ?
 526                                         1U : 0U;
 527                         dx_buff->is_udp_cso =
 528                                 (ip_hdr(skb)->protocol == IPPROTO_UDP) ?
 529                                         1U : 0U;
 530                 } else if (ip_hdr(skb)->version == 6) {
 531                         dx_buff->is_tcp_cso =
 532                                 (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP) ?
 533                                         1U : 0U;
 534                         dx_buff->is_udp_cso =
 535                                 (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP) ?
 536                                         1U : 0U;
 537                 }
 538         }
 539
 540         for (; nr_frags--; ++frag_count) {
 541                 unsigned int frag_len = 0U;
 542                 unsigned int buff_offset = 0U;
 543                 unsigned int buff_size = 0U;
 544                 dma_addr_t frag_pa;
 545                 skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_count];
 546
 547                 frag_len = skb_frag_size(frag);
 548
 549                 while (frag_len) {
 550                         if (frag_len > AQ_CFG_TX_FRAME_MAX)
 551                                 buff_size = AQ_CFG_TX_FRAME_MAX;
 552                         else
 553                                 buff_size = frag_len;
 554
 555                         frag_pa = skb_frag_dma_map(aq_nic_get_dev(self),
 556                                                    frag,
 557                                                    buff_offset,
 558                                                    buff_size,
 559                                                    DMA_TO_DEVICE);
 560
 561                         if (unlikely(dma_mapping_error(aq_nic_get_dev(self),
 562                                                        frag_pa)))
 563                                 goto mapping_error;
 564
 565                         dx = aq_ring_next_dx(ring, dx);
 566                         dx_buff = &ring->buff_ring[dx];
 567
 568                         dx_buff->flags = 0U;
 569                         dx_buff->len = buff_size;
 570                         dx_buff->pa = frag_pa;
 571                         dx_buff->is_mapped = 1U;
 572                         dx_buff->eop_index = 0xffffU;
 573
 574                         frag_len -= buff_size;
 575                         buff_offset += buff_size;
 576
 577                         ++ret;
 578                 }
 579         }
 580
 581         first->eop_index = dx;
 582         dx_buff->is_eop = 1U;
 583         dx_buff->skb = skb;
 584         goto exit;
 585
 586 mapping_error:
 587         for (dx = ring->sw_tail;
 588              ret > 0;
 589              --ret, dx = aq_ring_next_dx(ring, dx)) {
 590                 dx_buff = &ring->buff_ring[dx];
 591
 592                 if (!dx_buff->is_gso && !dx_buff->is_vlan && dx_buff->pa) {
 593                         if (unlikely(dx_buff->is_sop)) {
 594                                 dma_unmap_single(aq_nic_get_dev(self),
 595                                                  dx_buff->pa,
 596                                                  dx_buff->len,
 597                                                  DMA_TO_DEVICE);
 598                         } else {
 599                                 dma_unmap_page(aq_nic_get_dev(self),
 600                                                dx_buff->pa,
 601                                                dx_buff->len,
 602                                                DMA_TO_DEVICE);
 603                         }
 604                 }
 605         }
 606
 607 exit:
 608         return ret;
 609 }
 610
 611 int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb)
 612 {
 613         struct aq_ring_s *ring = NULL;
 614         unsigned int frags = 0U;
 615         unsigned int vec = skb->queue_mapping % self->aq_nic_cfg.vecs;
 616         unsigned int tc = 0U;
 617         int err = NETDEV_TX_OK;
 618
 619         frags = skb_shinfo(skb)->nr_frags + 1;
 620
 621         ring = self->aq_ring_tx[AQ_NIC_TCVEC2RING(self, tc, vec)];
 622
 623         if (frags > AQ_CFG_SKB_FRAGS_MAX) {
 624                 dev_kfree_skb_any(skb);
 625                 goto err_exit;
 626         }
 627
 628         aq_ring_update_queue_state(ring);
 629
 630         if (self->aq_nic_cfg.priv_flags & BIT(AQ_HW_LOOPBACK_DMA_NET)) {
 631                 err = NETDEV_TX_BUSY;
 632                 goto err_exit;
 633         }
 634
 635         /* Above status update may stop the queue. Check this. */
 636         if (__netif_subqueue_stopped(self->ndev, ring->idx)) {
 637                 err = NETDEV_TX_BUSY;
 638                 goto err_exit;
 639         }
 640
 641         frags = aq_nic_map_skb(self, skb, ring);
 642
 643         if (likely(frags)) {
 644                 err = self->aq_hw_ops->hw_ring_tx_xmit(self->aq_hw,
 645                                                        ring, frags);
 646                 if (err >= 0) {
 647                         ++ring->stats.tx.packets;
 648                         ring->stats.tx.bytes += skb->len;
 649                 }
 650         } else {
 651                 err = NETDEV_TX_BUSY;
 652         }
 653
 654 err_exit:
 655         return err;
 656 }
 657
 658 int aq_nic_update_interrupt_moderation_settings(struct aq_nic_s *self)
 659 {
 660         return self->aq_hw_ops->hw_interrupt_moderation_set(self->aq_hw);
 661 }
 662
 663 int aq_nic_set_packet_filter(struct aq_nic_s *self, unsigned int flags)
 664 {
 665         int err = 0;
 666
 667         err = self->aq_hw_ops->hw_packet_filter_set(self->aq_hw, flags);
 668         if (err < 0)
 669                 goto err_exit;
 670
 671         self->packet_filter = flags;
 672
 673 err_exit:
 674         return err;
 675 }
 676
 677 int aq_nic_set_multicast_list(struct aq_nic_s *self, struct net_device *ndev)
 678 {
 679         const struct aq_hw_ops *hw_ops = self->aq_hw_ops;
 680         struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
 681         unsigned int packet_filter = ndev->flags;
 682         struct netdev_hw_addr *ha = NULL;
 683         unsigned int i = 0U;
 684         int err = 0;
 685
 686         self->mc_list.count = 0;
 687         if (netdev_uc_count(ndev) > AQ_HW_MULTICAST_ADDRESS_MAX) {
 688                 packet_filter |= IFF_PROMISC;
 689         } else {
 690                 netdev_for_each_uc_addr(ha, ndev) {
 691                         ether_addr_copy(self->mc_list.ar[i++], ha->addr);
 692                 }
 693         }
 694
 695         cfg->is_mc_list_enabled = !!(packet_filter & IFF_MULTICAST);
 696         if (cfg->is_mc_list_enabled) {
 697                 if (i + netdev_mc_count(ndev) > AQ_HW_MULTICAST_ADDRESS_MAX) {
 698                         packet_filter |= IFF_ALLMULTI;
 699                 } else {
 700                         netdev_for_each_mc_addr(ha, ndev) {
 701                                 ether_addr_copy(self->mc_list.ar[i++],
 702                                                 ha->addr);
 703                         }
 704                 }
 705         }
 706
 707         if (i > 0 && i <= AQ_HW_MULTICAST_ADDRESS_MAX) {
 708                 self->mc_list.count = i;
 709                 err = hw_ops->hw_multicast_list_set(self->aq_hw,
 710                                                     self->mc_list.ar,
 711                                                     self->mc_list.count);
 712                 if (err < 0)
 713                         return err;
 714         }
 715         return aq_nic_set_packet_filter(self, packet_filter);
 716 }
 717
 718 int aq_nic_set_mtu(struct aq_nic_s *self, int new_mtu)
 719 {
 720         self->aq_nic_cfg.mtu = new_mtu;
 721
 722         return 0;
 723 }
 724
 725 int aq_nic_set_mac(struct aq_nic_s *self, struct net_device *ndev)
 726 {
 727         return self->aq_hw_ops->hw_set_mac_address(self->aq_hw, ndev->dev_addr);
 728 }
 729
 730 unsigned int aq_nic_get_link_speed(struct aq_nic_s *self)
 731 {
 732         return self->link_status.mbps;
 733 }
 734
 735 int aq_nic_get_regs(struct aq_nic_s *self, struct ethtool_regs *regs, void *p)
 736 {
 737         u32 *regs_buff = p;
 738         int err = 0;
 739
 740         regs->version = 1;
 741
 742         err = self->aq_hw_ops->hw_get_regs(self->aq_hw,
 743                                            self->aq_nic_cfg.aq_hw_caps,
 744                                            regs_buff);
 745         if (err < 0)
 746                 goto err_exit;
 747
 748 err_exit:
 749         return err;
 750 }
 751
 752 int aq_nic_get_regs_count(struct aq_nic_s *self)
 753 {
 754         return self->aq_nic_cfg.aq_hw_caps->mac_regs_count;
 755 }
 756
 757 void aq_nic_get_stats(struct aq_nic_s *self, u64 *data)
 758 {
 759         unsigned int i = 0U;
 760         unsigned int count = 0U;
 761         struct aq_vec_s *aq_vec = NULL;
 762         struct aq_stats_s *stats;
 763
 764         if (self->aq_fw_ops->update_stats) {
 765                 mutex_lock(&self->fwreq_mutex);
 766                 self->aq_fw_ops->update_stats(self->aq_hw);
 767                 mutex_unlock(&self->fwreq_mutex);
 768         }
 769         stats = self->aq_hw_ops->hw_get_hw_stats(self->aq_hw);
 770
 771         if (!stats)
 772                 goto err_exit;
 773
 774         data[i] = stats->uprc + stats->mprc + stats->bprc;
 775         data[++i] = stats->uprc;
 776         data[++i] = stats->mprc;
 777         data[++i] = stats->bprc;
 778         data[++i] = stats->erpt;
 779         data[++i] = stats->uptc + stats->mptc + stats->bptc;
 780         data[++i] = stats->uptc;
 781         data[++i] = stats->mptc;
 782         data[++i] = stats->bptc;
 783         data[++i] = stats->ubrc;
 784         data[++i] = stats->ubtc;
 785         data[++i] = stats->mbrc;
 786         data[++i] = stats->mbtc;
 787         data[++i] = stats->bbrc;
 788         data[++i] = stats->bbtc;
 789         data[++i] = stats->ubrc + stats->mbrc + stats->bbrc;
 790         data[++i] = stats->ubtc + stats->mbtc + stats->bbtc;
 791         data[++i] = stats->dma_pkt_rc;
 792         data[++i] = stats->dma_pkt_tc;
 793         data[++i] = stats->dma_oct_rc;
 794         data[++i] = stats->dma_oct_tc;
 795         data[++i] = stats->dpc;
 796
 797         i++;
 798
 799         data += i;
 800
 801         for (i = 0U, aq_vec = self->aq_vec[0];
 802                 aq_vec && self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
 803                 data += count;
 804                 aq_vec_get_sw_stats(aq_vec, data, &count);
 805         }
 806
 807 err_exit:;
 808 }
 809
 810 static void aq_nic_update_ndev_stats(struct aq_nic_s *self)
 811 {
 812         struct net_device *ndev = self->ndev;
 813         struct aq_stats_s *stats = self->aq_hw_ops->hw_get_hw_stats(self->aq_hw);
 814
 815         ndev->stats.rx_packets = stats->dma_pkt_rc;
 816         ndev->stats.rx_bytes = stats->dma_oct_rc;
 817         ndev->stats.rx_errors = stats->erpr;
 818         ndev->stats.rx_dropped = stats->dpc;
 819         ndev->stats.tx_packets = stats->dma_pkt_tc;
 820         ndev->stats.tx_bytes = stats->dma_oct_tc;
 821         ndev->stats.tx_errors = stats->erpt;
 822         ndev->stats.multicast = stats->mprc;
 823 }
 824
 825 void aq_nic_get_link_ksettings(struct aq_nic_s *self,
 826                                struct ethtool_link_ksettings *cmd)
 827 {
 828         if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE)
 829                 cmd->base.port = PORT_FIBRE;
 830         else
 831                 cmd->base.port = PORT_TP;
 832         /* This driver supports only 10G capable adapters, so DUPLEX_FULL */
 833         cmd->base.duplex = DUPLEX_FULL;
 834         cmd->base.autoneg = self->aq_nic_cfg.is_autoneg;
 835
 836         ethtool_link_ksettings_zero_link_mode(cmd, supported);
 837
 838         if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_10G)
 839                 ethtool_link_ksettings_add_link_mode(cmd, supported,
 840                                                      10000baseT_Full);
 841
 842         if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_5G)
 843                 ethtool_link_ksettings_add_link_mode(cmd, supported,
 844                                                      5000baseT_Full);
 845
 846         if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_2GS)
 847                 ethtool_link_ksettings_add_link_mode(cmd, supported,
 848                                                      2500baseT_Full);
 849
 850         if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_1G)
 851                 ethtool_link_ksettings_add_link_mode(cmd, supported,
 852                                                      1000baseT_Full);
 853
 854         if (self->aq_nic_cfg.aq_hw_caps->link_speed_msk & AQ_NIC_RATE_100M)
 855                 ethtool_link_ksettings_add_link_mode(cmd, supported,
 856                                                      100baseT_Full);
 857
 858         if (self->aq_nic_cfg.aq_hw_caps->flow_control)
 859                 ethtool_link_ksettings_add_link_mode(cmd, supported,
 860                                                      Pause);
 861
 862         ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
 863
 864         if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE)
 865                 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
 866         else
 867                 ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
 868
 869         ethtool_link_ksettings_zero_link_mode(cmd, advertising);
 870
 871         if (self->aq_nic_cfg.is_autoneg)
 872                 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
 873
 874         if (self->aq_nic_cfg.link_speed_msk  & AQ_NIC_RATE_10G)
 875                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
 876                                                      10000baseT_Full);
 877
 878         if (self->aq_nic_cfg.link_speed_msk  & AQ_NIC_RATE_5G)
 879                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
 880                                                      5000baseT_Full);
 881
 882         if (self->aq_nic_cfg.link_speed_msk  & AQ_NIC_RATE_2GS)
 883                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
 884                                                      2500baseT_Full);
 885
 886         if (self->aq_nic_cfg.link_speed_msk  & AQ_NIC_RATE_1G)
 887                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
 888                                                      1000baseT_Full);
 889
 890         if (self->aq_nic_cfg.link_speed_msk  & AQ_NIC_RATE_100M)
 891                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
 892                                                      100baseT_Full);
 893
 894         if (self->aq_nic_cfg.flow_control & AQ_NIC_FC_RX)
 895                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
 896                                                      Pause);
 897
 898         /* Asym is when either RX or TX, but not both */
 899         if (!!(self->aq_nic_cfg.flow_control & AQ_NIC_FC_TX) ^
 900             !!(self->aq_nic_cfg.flow_control & AQ_NIC_FC_RX))
 901                 ethtool_link_ksettings_add_link_mode(cmd, advertising,
 902                                                      Asym_Pause);
 903
 904         if (self->aq_nic_cfg.aq_hw_caps->media_type == AQ_HW_MEDIA_TYPE_FIBRE)
 905                 ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
 906         else
 907                 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
 908 }
 909
 910 int aq_nic_set_link_ksettings(struct aq_nic_s *self,
 911                               const struct ethtool_link_ksettings *cmd)
 912 {
 913         u32 speed = 0U;
 914         u32 rate = 0U;
 915         int err = 0;
 916
 917         if (cmd->base.autoneg == AUTONEG_ENABLE) {
 918                 rate = self->aq_nic_cfg.aq_hw_caps->link_speed_msk;
 919                 self->aq_nic_cfg.is_autoneg = true;
 920         } else {
 921                 speed = cmd->base.speed;
 922
 923                 switch (speed) {
 924                 case SPEED_100:
 925                         rate = AQ_NIC_RATE_100M;
 926                         break;
 927
 928                 case SPEED_1000:
 929                         rate = AQ_NIC_RATE_1G;
 930                         break;
 931
 932                 case SPEED_2500:
 933                         rate = AQ_NIC_RATE_2GS;
 934                         break;
 935
 936                 case SPEED_5000:
 937                         rate = AQ_NIC_RATE_5G;
 938                         break;
 939
 940                 case SPEED_10000:
 941                         rate = AQ_NIC_RATE_10G;
 942                         break;
 943
 944                 default:
 945                         err = -1;
 946                         goto err_exit;
 947                 break;
 948                 }
 949                 if (!(self->aq_nic_cfg.aq_hw_caps->link_speed_msk & rate)) {
 950                         err = -1;
 951                         goto err_exit;
 952                 }
 953
 954                 self->aq_nic_cfg.is_autoneg = false;
 955         }
 956
 957         mutex_lock(&self->fwreq_mutex);
 958         err = self->aq_fw_ops->set_link_speed(self->aq_hw, rate);
 959         mutex_unlock(&self->fwreq_mutex);
 960         if (err < 0)
 961                 goto err_exit;
 962
 963         self->aq_nic_cfg.link_speed_msk = rate;
 964
 965 err_exit:
 966         return err;
 967 }
 968
 969 struct aq_nic_cfg_s *aq_nic_get_cfg(struct aq_nic_s *self)
 970 {
 971         return &self->aq_nic_cfg;
 972 }
 973
 974 u32 aq_nic_get_fw_version(struct aq_nic_s *self)
 975 {
 976         u32 fw_version = 0U;
 977
 978         self->aq_hw_ops->hw_get_fw_version(self->aq_hw, &fw_version);
 979
 980         return fw_version;
 981 }
 982
 983 int aq_nic_set_loopback(struct aq_nic_s *self)
 984 {
 985         struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
 986
 987         if (!self->aq_hw_ops->hw_set_loopback ||
 988             !self->aq_fw_ops->set_phyloopback)
 989                 return -ENOTSUPP;
 990
 991         mutex_lock(&self->fwreq_mutex);
 992         self->aq_hw_ops->hw_set_loopback(self->aq_hw,
 993                                          AQ_HW_LOOPBACK_DMA_SYS,
 994                                          !!(cfg->priv_flags &
 995                                             BIT(AQ_HW_LOOPBACK_DMA_SYS)));
 996
 997         self->aq_hw_ops->hw_set_loopback(self->aq_hw,
 998                                          AQ_HW_LOOPBACK_PKT_SYS,
 999                                          !!(cfg->priv_flags &
1000                                             BIT(AQ_HW_LOOPBACK_PKT_SYS)));
1001
1002         self->aq_hw_ops->hw_set_loopback(self->aq_hw,
1003                                          AQ_HW_LOOPBACK_DMA_NET,
1004                                          !!(cfg->priv_flags &
1005                                             BIT(AQ_HW_LOOPBACK_DMA_NET)));
1006
1007         self->aq_fw_ops->set_phyloopback(self->aq_hw,
1008                                          AQ_HW_LOOPBACK_PHYINT_SYS,
1009                                          !!(cfg->priv_flags &
1010                                             BIT(AQ_HW_LOOPBACK_PHYINT_SYS)));
1011
1012         self->aq_fw_ops->set_phyloopback(self->aq_hw,
1013                                          AQ_HW_LOOPBACK_PHYEXT_SYS,
1014                                          !!(cfg->priv_flags &
1015                                             BIT(AQ_HW_LOOPBACK_PHYEXT_SYS)));
1016         mutex_unlock(&self->fwreq_mutex);
1017
1018         return 0;
1019 }
1020
1021 int aq_nic_stop(struct aq_nic_s *self)
1022 {
1023         struct aq_vec_s *aq_vec = NULL;
1024         unsigned int i = 0U;
1025
1026         netif_tx_disable(self->ndev);
1027         netif_carrier_off(self->ndev);
1028
1029         del_timer_sync(&self->service_timer);
1030         cancel_work_sync(&self->service_task);
1031
1032         self->aq_hw_ops->hw_irq_disable(self->aq_hw, AQ_CFG_IRQ_MASK);
1033
1034         if (self->aq_nic_cfg.is_polling)
1035                 del_timer_sync(&self->polling_timer);
1036         else
1037                 aq_pci_func_free_irqs(self);
1038
1039         aq_ptp_irq_free(self);
1040
1041         for (i = 0U, aq_vec = self->aq_vec[0];
1042                 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
1043                 aq_vec_stop(aq_vec);
1044
1045         aq_ptp_ring_stop(self);
1046
1047         return self->aq_hw_ops->hw_stop(self->aq_hw);
1048 }
1049
1050 void aq_nic_set_power(struct aq_nic_s *self)
1051 {
1052         if (self->power_state != AQ_HW_POWER_STATE_D0 ||
1053             self->aq_hw->aq_nic_cfg->wol)
1054                 if (likely(self->aq_fw_ops->set_power)) {
1055                         mutex_lock(&self->fwreq_mutex);
1056                         self->aq_fw_ops->set_power(self->aq_hw,
1057                                                    self->power_state,
1058                                                    self->ndev->dev_addr);
1059                         mutex_unlock(&self->fwreq_mutex);
1060                 }
1061 }
1062
1063 void aq_nic_deinit(struct aq_nic_s *self, bool link_down)
1064 {
1065         struct aq_vec_s *aq_vec = NULL;
1066         unsigned int i = 0U;
1067
1068         if (!self)
1069                 goto err_exit;
1070
1071         for (i = 0U, aq_vec = self->aq_vec[0];
1072                 self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
1073                 aq_vec_deinit(aq_vec);
1074
1075         aq_ptp_unregister(self);
1076         aq_ptp_ring_deinit(self);
1077         aq_ptp_ring_free(self);
1078         aq_ptp_free(self);
1079
1080         if (likely(self->aq_fw_ops->deinit) && link_down) {
1081                 mutex_lock(&self->fwreq_mutex);
1082                 self->aq_fw_ops->deinit(self->aq_hw);
1083                 mutex_unlock(&self->fwreq_mutex);
1084         }
1085
1086 err_exit:;
1087 }
1088
1089 void aq_nic_free_vectors(struct aq_nic_s *self)
1090 {
1091         unsigned int i = 0U;
1092
1093         if (!self)
1094                 goto err_exit;
1095
1096         for (i = ARRAY_SIZE(self->aq_vec); i--;) {
1097                 if (self->aq_vec[i]) {
1098                         aq_vec_free(self->aq_vec[i]);
1099                         self->aq_vec[i] = NULL;
1100                 }
1101         }
1102
1103 err_exit:;
1104 }
1105
1106 void aq_nic_shutdown(struct aq_nic_s *self)
1107 {
1108         int err = 0;
1109
1110         if (!self->ndev)
1111                 return;
1112
1113         rtnl_lock();
1114
1115         netif_device_detach(self->ndev);
1116
1117         if (netif_running(self->ndev)) {
1118                 err = aq_nic_stop(self);
1119                 if (err < 0)
1120                         goto err_exit;
1121         }
1122         aq_nic_deinit(self, !self->aq_hw->aq_nic_cfg->wol);
1123         aq_nic_set_power(self);
1124
1125 err_exit:
1126         rtnl_unlock();
1127 }
1128
1129 u8 aq_nic_reserve_filter(struct aq_nic_s *self, enum aq_rx_filter_type type)
1130 {
1131         u8 location = 0xFF;
1132         u32 fltr_cnt;
1133         u32 n_bit;
1134
1135         switch (type) {
1136         case aq_rx_filter_ethertype:
1137                 location = AQ_RX_LAST_LOC_FETHERT - AQ_RX_FIRST_LOC_FETHERT -
1138                            self->aq_hw_rx_fltrs.fet_reserved_count;
1139                 self->aq_hw_rx_fltrs.fet_reserved_count++;
1140                 break;
1141         case aq_rx_filter_l3l4:
1142                 fltr_cnt = AQ_RX_LAST_LOC_FL3L4 - AQ_RX_FIRST_LOC_FL3L4;
1143                 n_bit = fltr_cnt - self->aq_hw_rx_fltrs.fl3l4.reserved_count;
1144
1145                 self->aq_hw_rx_fltrs.fl3l4.active_ipv4 |= BIT(n_bit);
1146                 self->aq_hw_rx_fltrs.fl3l4.reserved_count++;
1147                 location = n_bit;
1148                 break;
1149         default:
1150                 break;
1151         }
1152
1153         return location;
1154 }
1155
1156 void aq_nic_release_filter(struct aq_nic_s *self, enum aq_rx_filter_type type,
1157                            u32 location)
1158 {
1159         switch (type) {
1160         case aq_rx_filter_ethertype:
1161                 self->aq_hw_rx_fltrs.fet_reserved_count--;
1162                 break;
1163         case aq_rx_filter_l3l4:
1164                 self->aq_hw_rx_fltrs.fl3l4.reserved_count--;
1165                 self->aq_hw_rx_fltrs.fl3l4.active_ipv4 &= ~BIT(location);
1166                 break;
1167         default:
1168                 break;
1169         }
1170 }