drivers/net/qlge/qlge_ethtool.c

   1 #include <linux/kernel.h>
   2 #include <linux/init.h>
   3 #include <linux/types.h>
   4 #include <linux/module.h>
   5 #include <linux/list.h>
   6 #include <linux/pci.h>
   7 #include <linux/dma-mapping.h>
   8 #include <linux/pagemap.h>
   9 #include <linux/sched.h>
  10 #include <linux/dmapool.h>
  11 #include <linux/mempool.h>
  12 #include <linux/spinlock.h>
  13 #include <linux/kthread.h>
  14 #include <linux/interrupt.h>
  15 #include <linux/errno.h>
  16 #include <linux/ioport.h>
  17 #include <linux/in.h>
  18 #include <linux/ip.h>
  19 #include <linux/ipv6.h>
  20 #include <net/ipv6.h>
  21 #include <linux/tcp.h>
  22 #include <linux/udp.h>
  23 #include <linux/if_arp.h>
  24 #include <linux/if_ether.h>
  25 #include <linux/netdevice.h>
  26 #include <linux/etherdevice.h>
  27 #include <linux/ethtool.h>
  28 #include <linux/skbuff.h>
  29 #include <linux/rtnetlink.h>
  30 #include <linux/if_vlan.h>
  31 #include <linux/delay.h>
  32 #include <linux/mm.h>
  33 #include <linux/vmalloc.h>
  34
  35
  36 #include "qlge.h"
  37
  38 static const char ql_gstrings_test[][ETH_GSTRING_LEN] = {
  39         "Loopback test  (offline)"
  40 };
  41 #define QLGE_TEST_LEN (sizeof(ql_gstrings_test) / ETH_GSTRING_LEN)
  42
  43 static int ql_update_ring_coalescing(struct ql_adapter *qdev)
  44 {
  45         int i, status = 0;
  46         struct rx_ring *rx_ring;
  47         struct cqicb *cqicb;
  48
  49         if (!netif_running(qdev->ndev))
  50                 return status;
  51
  52         /* Skip the default queue, and update the outbound handler
  53          * queues if they changed.
  54          */
  55         cqicb = (struct cqicb *)&qdev->rx_ring[qdev->rss_ring_count];
  56         if (le16_to_cpu(cqicb->irq_delay) != qdev->tx_coalesce_usecs ||
  57                 le16_to_cpu(cqicb->pkt_delay) !=
  58                                 qdev->tx_max_coalesced_frames) {
  59                 for (i = qdev->rss_ring_count; i < qdev->rx_ring_count; i++) {
  60                         rx_ring = &qdev->rx_ring[i];
  61                         cqicb = (struct cqicb *)rx_ring;
  62                         cqicb->irq_delay = cpu_to_le16(qdev->tx_coalesce_usecs);
  63                         cqicb->pkt_delay =
  64                             cpu_to_le16(qdev->tx_max_coalesced_frames);
  65                         cqicb->flags = FLAGS_LI;
  66                         status = ql_write_cfg(qdev, cqicb, sizeof(*cqicb),
  67                                                 CFG_LCQ, rx_ring->cq_id);
  68                         if (status) {
  69                                 netif_err(qdev, ifup, qdev->ndev,
  70                                           "Failed to load CQICB.\n");
  71                                 goto exit;
  72                         }
  73                 }
  74         }
  75
  76         /* Update the inbound (RSS) handler queues if they changed. */
  77         cqicb = (struct cqicb *)&qdev->rx_ring[0];
  78         if (le16_to_cpu(cqicb->irq_delay) != qdev->rx_coalesce_usecs ||
  79                 le16_to_cpu(cqicb->pkt_delay) !=
  80                                         qdev->rx_max_coalesced_frames) {
  81                 for (i = 0; i < qdev->rss_ring_count; i++, rx_ring++) {
  82                         rx_ring = &qdev->rx_ring[i];
  83                         cqicb = (struct cqicb *)rx_ring;
  84                         cqicb->irq_delay = cpu_to_le16(qdev->rx_coalesce_usecs);
  85                         cqicb->pkt_delay =
  86                             cpu_to_le16(qdev->rx_max_coalesced_frames);
  87                         cqicb->flags = FLAGS_LI;
  88                         status = ql_write_cfg(qdev, cqicb, sizeof(*cqicb),
  89                                                 CFG_LCQ, rx_ring->cq_id);
  90                         if (status) {
  91                                 netif_err(qdev, ifup, qdev->ndev,
  92                                           "Failed to load CQICB.\n");
  93                                 goto exit;
  94                         }
  95                 }
  96         }
  97 exit:
  98         return status;
  99 }
 100
 101 static void ql_update_stats(struct ql_adapter *qdev)
 102 {
 103         u32 i;
 104         u64 data;
 105         u64 *iter = &qdev->nic_stats.tx_pkts;
 106
 107         spin_lock(&qdev->stats_lock);
 108         if (ql_sem_spinlock(qdev, qdev->xg_sem_mask)) {
 109                         netif_err(qdev, drv, qdev->ndev,
 110                                   "Couldn't get xgmac sem.\n");
 111                 goto quit;
 112         }
 113         /*
 114          * Get TX statistics.
 115          */
 116         for (i = 0x200; i < 0x280; i += 8) {
 117                 if (ql_read_xgmac_reg64(qdev, i, &data)) {
 118                         netif_err(qdev, drv, qdev->ndev,
 119                                   "Error reading status register 0x%.04x.\n",
 120                                   i);
 121                         goto end;
 122                 } else
 123                         *iter = data;
 124                 iter++;
 125         }
 126
 127         /*
 128          * Get RX statistics.
 129          */
 130         for (i = 0x300; i < 0x3d0; i += 8) {
 131                 if (ql_read_xgmac_reg64(qdev, i, &data)) {
 132                         netif_err(qdev, drv, qdev->ndev,
 133                                   "Error reading status register 0x%.04x.\n",
 134                                   i);
 135                         goto end;
 136                 } else
 137                         *iter = data;
 138                 iter++;
 139         }
 140
 141         /*
 142          * Get Per-priority TX pause frame counter statistics.
 143          */
 144         for (i = 0x500; i < 0x540; i += 8) {
 145                 if (ql_read_xgmac_reg64(qdev, i, &data)) {
 146                         netif_err(qdev, drv, qdev->ndev,
 147                                   "Error reading status register 0x%.04x.\n",
 148                                   i);
 149                         goto end;
 150                 } else
 151                         *iter = data;
 152                 iter++;
 153         }
 154
 155         /*
 156          * Get Per-priority RX pause frame counter statistics.
 157          */
 158         for (i = 0x568; i < 0x5a8; i += 8) {
 159                 if (ql_read_xgmac_reg64(qdev, i, &data)) {
 160                         netif_err(qdev, drv, qdev->ndev,
 161                                   "Error reading status register 0x%.04x.\n",
 162                                   i);
 163                         goto end;
 164                 } else
 165                         *iter = data;
 166                 iter++;
 167         }
 168
 169         /*
 170          * Get RX NIC FIFO DROP statistics.
 171          */
 172         if (ql_read_xgmac_reg64(qdev, 0x5b8, &data)) {
 173                 netif_err(qdev, drv, qdev->ndev,
 174                           "Error reading status register 0x%.04x.\n", i);
 175                 goto end;
 176         } else
 177                 *iter = data;
 178 end:
 179         ql_sem_unlock(qdev, qdev->xg_sem_mask);
 180 quit:
 181         spin_unlock(&qdev->stats_lock);
 182
 183         QL_DUMP_STAT(qdev);
 184 }
 185
 186 static char ql_stats_str_arr[][ETH_GSTRING_LEN] = {
 187         {"tx_pkts"},
 188         {"tx_bytes"},
 189         {"tx_mcast_pkts"},
 190         {"tx_bcast_pkts"},
 191         {"tx_ucast_pkts"},
 192         {"tx_ctl_pkts"},
 193         {"tx_pause_pkts"},
 194         {"tx_64_pkts"},
 195         {"tx_65_to_127_pkts"},
 196         {"tx_128_to_255_pkts"},
 197         {"tx_256_511_pkts"},
 198         {"tx_512_to_1023_pkts"},
 199         {"tx_1024_to_1518_pkts"},
 200         {"tx_1519_to_max_pkts"},
 201         {"tx_undersize_pkts"},
 202         {"tx_oversize_pkts"},
 203         {"rx_bytes"},
 204         {"rx_bytes_ok"},
 205         {"rx_pkts"},
 206         {"rx_pkts_ok"},
 207         {"rx_bcast_pkts"},
 208         {"rx_mcast_pkts"},
 209         {"rx_ucast_pkts"},
 210         {"rx_undersize_pkts"},
 211         {"rx_oversize_pkts"},
 212         {"rx_jabber_pkts"},
 213         {"rx_undersize_fcerr_pkts"},
 214         {"rx_drop_events"},
 215         {"rx_fcerr_pkts"},
 216         {"rx_align_err"},
 217         {"rx_symbol_err"},
 218         {"rx_mac_err"},
 219         {"rx_ctl_pkts"},
 220         {"rx_pause_pkts"},
 221         {"rx_64_pkts"},
 222         {"rx_65_to_127_pkts"},
 223         {"rx_128_255_pkts"},
 224         {"rx_256_511_pkts"},
 225         {"rx_512_to_1023_pkts"},
 226         {"rx_1024_to_1518_pkts"},
 227         {"rx_1519_to_max_pkts"},
 228         {"rx_len_err_pkts"},
 229         {"tx_cbfc_pause_frames0"},
 230         {"tx_cbfc_pause_frames1"},
 231         {"tx_cbfc_pause_frames2"},
 232         {"tx_cbfc_pause_frames3"},
 233         {"tx_cbfc_pause_frames4"},
 234         {"tx_cbfc_pause_frames5"},
 235         {"tx_cbfc_pause_frames6"},
 236         {"tx_cbfc_pause_frames7"},
 237         {"rx_cbfc_pause_frames0"},
 238         {"rx_cbfc_pause_frames1"},
 239         {"rx_cbfc_pause_frames2"},
 240         {"rx_cbfc_pause_frames3"},
 241         {"rx_cbfc_pause_frames4"},
 242         {"rx_cbfc_pause_frames5"},
 243         {"rx_cbfc_pause_frames6"},
 244         {"rx_cbfc_pause_frames7"},
 245         {"rx_nic_fifo_drop"},
 246 };
 247
 248 static void ql_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
 249 {
 250         switch (stringset) {
 251         case ETH_SS_STATS:
 252                 memcpy(buf, ql_stats_str_arr, sizeof(ql_stats_str_arr));
 253                 break;
 254         }
 255 }
 256
 257 static int ql_get_sset_count(struct net_device *dev, int sset)
 258 {
 259         switch (sset) {
 260         case ETH_SS_TEST:
 261                 return QLGE_TEST_LEN;
 262         case ETH_SS_STATS:
 263                 return ARRAY_SIZE(ql_stats_str_arr);
 264         default:
 265                 return -EOPNOTSUPP;
 266         }
 267 }
 268
 269 static void
 270 ql_get_ethtool_stats(struct net_device *ndev,
 271                      struct ethtool_stats *stats, u64 *data)
 272 {
 273         struct ql_adapter *qdev = netdev_priv(ndev);
 274         struct nic_stats *s = &qdev->nic_stats;
 275
 276         ql_update_stats(qdev);
 277
 278         *data++ = s->tx_pkts;
 279         *data++ = s->tx_bytes;
 280         *data++ = s->tx_mcast_pkts;
 281         *data++ = s->tx_bcast_pkts;
 282         *data++ = s->tx_ucast_pkts;
 283         *data++ = s->tx_ctl_pkts;
 284         *data++ = s->tx_pause_pkts;
 285         *data++ = s->tx_64_pkt;
 286         *data++ = s->tx_65_to_127_pkt;
 287         *data++ = s->tx_128_to_255_pkt;
 288         *data++ = s->tx_256_511_pkt;
 289         *data++ = s->tx_512_to_1023_pkt;
 290         *data++ = s->tx_1024_to_1518_pkt;
 291         *data++ = s->tx_1519_to_max_pkt;
 292         *data++ = s->tx_undersize_pkt;
 293         *data++ = s->tx_oversize_pkt;
 294         *data++ = s->rx_bytes;
 295         *data++ = s->rx_bytes_ok;
 296         *data++ = s->rx_pkts;
 297         *data++ = s->rx_pkts_ok;
 298         *data++ = s->rx_bcast_pkts;
 299         *data++ = s->rx_mcast_pkts;
 300         *data++ = s->rx_ucast_pkts;
 301         *data++ = s->rx_undersize_pkts;
 302         *data++ = s->rx_oversize_pkts;
 303         *data++ = s->rx_jabber_pkts;
 304         *data++ = s->rx_undersize_fcerr_pkts;
 305         *data++ = s->rx_drop_events;
 306         *data++ = s->rx_fcerr_pkts;
 307         *data++ = s->rx_align_err;
 308         *data++ = s->rx_symbol_err;
 309         *data++ = s->rx_mac_err;
 310         *data++ = s->rx_ctl_pkts;
 311         *data++ = s->rx_pause_pkts;
 312         *data++ = s->rx_64_pkts;
 313         *data++ = s->rx_65_to_127_pkts;
 314         *data++ = s->rx_128_255_pkts;
 315         *data++ = s->rx_256_511_pkts;
 316         *data++ = s->rx_512_to_1023_pkts;
 317         *data++ = s->rx_1024_to_1518_pkts;
 318         *data++ = s->rx_1519_to_max_pkts;
 319         *data++ = s->rx_len_err_pkts;
 320         *data++ = s->tx_cbfc_pause_frames0;
 321         *data++ = s->tx_cbfc_pause_frames1;
 322         *data++ = s->tx_cbfc_pause_frames2;
 323         *data++ = s->tx_cbfc_pause_frames3;
 324         *data++ = s->tx_cbfc_pause_frames4;
 325         *data++ = s->tx_cbfc_pause_frames5;
 326         *data++ = s->tx_cbfc_pause_frames6;
 327         *data++ = s->tx_cbfc_pause_frames7;
 328         *data++ = s->rx_cbfc_pause_frames0;
 329         *data++ = s->rx_cbfc_pause_frames1;
 330         *data++ = s->rx_cbfc_pause_frames2;
 331         *data++ = s->rx_cbfc_pause_frames3;
 332         *data++ = s->rx_cbfc_pause_frames4;
 333         *data++ = s->rx_cbfc_pause_frames5;
 334         *data++ = s->rx_cbfc_pause_frames6;
 335         *data++ = s->rx_cbfc_pause_frames7;
 336         *data++ = s->rx_nic_fifo_drop;
 337 }
 338
 339 static int ql_get_settings(struct net_device *ndev,
 340                               struct ethtool_cmd *ecmd)
 341 {
 342         struct ql_adapter *qdev = netdev_priv(ndev);
 343
 344         ecmd->supported = SUPPORTED_10000baseT_Full;
 345         ecmd->advertising = ADVERTISED_10000baseT_Full;
 346         ecmd->autoneg = AUTONEG_ENABLE;
 347         ecmd->transceiver = XCVR_EXTERNAL;
 348         if ((qdev->link_status & STS_LINK_TYPE_MASK) ==
 349                                 STS_LINK_TYPE_10GBASET) {
 350                 ecmd->supported |= (SUPPORTED_TP | SUPPORTED_Autoneg);
 351                 ecmd->advertising |= (ADVERTISED_TP | ADVERTISED_Autoneg);
 352                 ecmd->port = PORT_TP;
 353         } else {
 354                 ecmd->supported |= SUPPORTED_FIBRE;
 355                 ecmd->advertising |= ADVERTISED_FIBRE;
 356                 ecmd->port = PORT_FIBRE;
 357         }
 358
 359         ethtool_cmd_speed_set(ecmd, SPEED_10000);
 360         ecmd->duplex = DUPLEX_FULL;
 361
 362         return 0;
 363 }
 364
 365 static void ql_get_drvinfo(struct net_device *ndev,
 366                            struct ethtool_drvinfo *drvinfo)
 367 {
 368         struct ql_adapter *qdev = netdev_priv(ndev);
 369         strncpy(drvinfo->driver, qlge_driver_name, 32);
 370         strncpy(drvinfo->version, qlge_driver_version, 32);
 371         snprintf(drvinfo->fw_version, 32, "v%d.%d.%d",
 372                  (qdev->fw_rev_id & 0x00ff0000) >> 16,
 373                  (qdev->fw_rev_id & 0x0000ff00) >> 8,
 374                  (qdev->fw_rev_id & 0x000000ff));
 375         strncpy(drvinfo->bus_info, pci_name(qdev->pdev), 32);
 376         drvinfo->n_stats = 0;
 377         drvinfo->testinfo_len = 0;
 378         if (!test_bit(QL_FRC_COREDUMP, &qdev->flags))
 379                 drvinfo->regdump_len = sizeof(struct ql_mpi_coredump);
 380         else
 381                 drvinfo->regdump_len = sizeof(struct ql_reg_dump);
 382         drvinfo->eedump_len = 0;
 383 }
 384
 385 static void ql_get_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
 386 {
 387         struct ql_adapter *qdev = netdev_priv(ndev);
 388         /* What we support. */
 389         wol->supported = WAKE_MAGIC;
 390         /* What we've currently got set. */
 391         wol->wolopts = qdev->wol;
 392 }
 393
 394 static int ql_set_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
 395 {
 396         struct ql_adapter *qdev = netdev_priv(ndev);
 397         int status;
 398
 399         if (wol->wolopts & ~WAKE_MAGIC)
 400                 return -EINVAL;
 401         qdev->wol = wol->wolopts;
 402
 403         netif_info(qdev, drv, qdev->ndev, "Set wol option 0x%x\n", qdev->wol);
 404         if (!qdev->wol) {
 405                 u32 wol = 0;
 406                 status = ql_mb_wol_mode(qdev, wol);
 407                 netif_err(qdev, drv, qdev->ndev, "WOL %s (wol code 0x%x)\n",
 408                           status == 0 ? "cleared successfully" : "clear failed",
 409                           wol);
 410         }
 411
 412         return 0;
 413 }
 414
 415 static int ql_set_phys_id(struct net_device *ndev,
 416                           enum ethtool_phys_id_state state)
 417
 418 {
 419         struct ql_adapter *qdev = netdev_priv(ndev);
 420
 421         switch (state) {
 422         case ETHTOOL_ID_ACTIVE:
 423                 /* Save the current LED settings */
 424                 if (ql_mb_get_led_cfg(qdev))
 425                         return -EIO;
 426
 427                 /* Start blinking */
 428                 ql_mb_set_led_cfg(qdev, QL_LED_BLINK);
 429                 return 0;
 430
 431         case ETHTOOL_ID_INACTIVE:
 432                 /* Restore LED settings */
 433                 if (ql_mb_set_led_cfg(qdev, qdev->led_config))
 434                         return -EIO;
 435                 return 0;
 436
 437         default:
 438                 return -EINVAL;
 439         }
 440 }
 441
 442 static int ql_start_loopback(struct ql_adapter *qdev)
 443 {
 444         if (netif_carrier_ok(qdev->ndev)) {
 445                 set_bit(QL_LB_LINK_UP, &qdev->flags);
 446                 netif_carrier_off(qdev->ndev);
 447         } else
 448                 clear_bit(QL_LB_LINK_UP, &qdev->flags);
 449         qdev->link_config |= CFG_LOOPBACK_PCS;
 450         return ql_mb_set_port_cfg(qdev);
 451 }
 452
 453 static void ql_stop_loopback(struct ql_adapter *qdev)
 454 {
 455         qdev->link_config &= ~CFG_LOOPBACK_PCS;
 456         ql_mb_set_port_cfg(qdev);
 457         if (test_bit(QL_LB_LINK_UP, &qdev->flags)) {
 458                 netif_carrier_on(qdev->ndev);
 459                 clear_bit(QL_LB_LINK_UP, &qdev->flags);
 460         }
 461 }
 462
 463 static void ql_create_lb_frame(struct sk_buff *skb,
 464                                         unsigned int frame_size)
 465 {
 466         memset(skb->data, 0xFF, frame_size);
 467         frame_size &= ~1;
 468         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
 469         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
 470         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
 471 }
 472
 473 void ql_check_lb_frame(struct ql_adapter *qdev,
 474                                         struct sk_buff *skb)
 475 {
 476         unsigned int frame_size = skb->len;
 477
 478         if ((*(skb->data + 3) == 0xFF) &&
 479                 (*(skb->data + frame_size / 2 + 10) == 0xBE) &&
 480                 (*(skb->data + frame_size / 2 + 12) == 0xAF)) {
 481                         atomic_dec(&qdev->lb_count);
 482                         return;
 483         }
 484 }
 485
 486 static int ql_run_loopback_test(struct ql_adapter *qdev)
 487 {
 488         int i;
 489         netdev_tx_t rc;
 490         struct sk_buff *skb;
 491         unsigned int size = SMALL_BUF_MAP_SIZE;
 492
 493         for (i = 0; i < 64; i++) {
 494                 skb = netdev_alloc_skb(qdev->ndev, size);
 495                 if (!skb)
 496                         return -ENOMEM;
 497
 498                 skb->queue_mapping = 0;
 499                 skb_put(skb, size);
 500                 ql_create_lb_frame(skb, size);
 501                 rc = ql_lb_send(skb, qdev->ndev);
 502                 if (rc != NETDEV_TX_OK)
 503                         return -EPIPE;
 504                 atomic_inc(&qdev->lb_count);
 505         }
 506         /* Give queue time to settle before testing results. */
 507         msleep(2);
 508         ql_clean_lb_rx_ring(&qdev->rx_ring[0], 128);
 509         return atomic_read(&qdev->lb_count) ? -EIO : 0;
 510 }
 511
 512 static int ql_loopback_test(struct ql_adapter *qdev, u64 *data)
 513 {
 514         *data = ql_start_loopback(qdev);
 515         if (*data)
 516                 goto out;
 517         *data = ql_run_loopback_test(qdev);
 518 out:
 519         ql_stop_loopback(qdev);
 520         return *data;
 521 }
 522
 523 static void ql_self_test(struct net_device *ndev,
 524                                 struct ethtool_test *eth_test, u64 *data)
 525 {
 526         struct ql_adapter *qdev = netdev_priv(ndev);
 527
 528         if (netif_running(ndev)) {
 529                 set_bit(QL_SELFTEST, &qdev->flags);
 530                 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
 531                         /* Offline tests */
 532                         if (ql_loopback_test(qdev, &data[0]))
 533                                 eth_test->flags |= ETH_TEST_FL_FAILED;
 534
 535                 } else {
 536                         /* Online tests */
 537                         data[0] = 0;
 538                 }
 539                 clear_bit(QL_SELFTEST, &qdev->flags);
 540                 /* Give link time to come up after
 541                  * port configuration changes.
 542                  */
 543                 msleep_interruptible(4 * 1000);
 544         } else {
 545                 netif_err(qdev, drv, qdev->ndev,
 546                           "is down, Loopback test will fail.\n");
 547                 eth_test->flags |= ETH_TEST_FL_FAILED;
 548         }
 549 }
 550
 551 static int ql_get_regs_len(struct net_device *ndev)
 552 {
 553         struct ql_adapter *qdev = netdev_priv(ndev);
 554
 555         if (!test_bit(QL_FRC_COREDUMP, &qdev->flags))
 556                 return sizeof(struct ql_mpi_coredump);
 557         else
 558                 return sizeof(struct ql_reg_dump);
 559 }
 560
 561 static void ql_get_regs(struct net_device *ndev,
 562                         struct ethtool_regs *regs, void *p)
 563 {
 564         struct ql_adapter *qdev = netdev_priv(ndev);
 565
 566         ql_get_dump(qdev, p);
 567         qdev->core_is_dumped = 0;
 568         if (!test_bit(QL_FRC_COREDUMP, &qdev->flags))
 569                 regs->len = sizeof(struct ql_mpi_coredump);
 570         else
 571                 regs->len = sizeof(struct ql_reg_dump);
 572 }
 573
 574 static int ql_get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
 575 {
 576         struct ql_adapter *qdev = netdev_priv(dev);
 577
 578         c->rx_coalesce_usecs = qdev->rx_coalesce_usecs;
 579         c->tx_coalesce_usecs = qdev->tx_coalesce_usecs;
 580
 581         /* This chip coalesces as follows:
 582          * If a packet arrives, hold off interrupts until
 583          * cqicb->int_delay expires, but if no other packets arrive don't
 584          * wait longer than cqicb->pkt_int_delay. But ethtool doesn't use a
 585          * timer to coalesce on a frame basis.  So, we have to take ethtool's
 586          * max_coalesced_frames value and convert it to a delay in microseconds.
 587          * We do this by using a basic thoughput of 1,000,000 frames per
 588          * second @ (1024 bytes).  This means one frame per usec. So it's a
 589          * simple one to one ratio.
 590          */
 591         c->rx_max_coalesced_frames = qdev->rx_max_coalesced_frames;
 592         c->tx_max_coalesced_frames = qdev->tx_max_coalesced_frames;
 593
 594         return 0;
 595 }
 596
 597 static int ql_set_coalesce(struct net_device *ndev, struct ethtool_coalesce *c)
 598 {
 599         struct ql_adapter *qdev = netdev_priv(ndev);
 600
 601         /* Validate user parameters. */
 602         if (c->rx_coalesce_usecs > qdev->rx_ring_size / 2)
 603                 return -EINVAL;
 604        /* Don't wait more than 10 usec. */
 605         if (c->rx_max_coalesced_frames > MAX_INTER_FRAME_WAIT)
 606                 return -EINVAL;
 607         if (c->tx_coalesce_usecs > qdev->tx_ring_size / 2)
 608                 return -EINVAL;
 609         if (c->tx_max_coalesced_frames > MAX_INTER_FRAME_WAIT)
 610                 return -EINVAL;
 611
 612         /* Verify a change took place before updating the hardware. */
 613         if (qdev->rx_coalesce_usecs == c->rx_coalesce_usecs &&
 614             qdev->tx_coalesce_usecs == c->tx_coalesce_usecs &&
 615             qdev->rx_max_coalesced_frames == c->rx_max_coalesced_frames &&
 616             qdev->tx_max_coalesced_frames == c->tx_max_coalesced_frames)
 617                 return 0;
 618
 619         qdev->rx_coalesce_usecs = c->rx_coalesce_usecs;
 620         qdev->tx_coalesce_usecs = c->tx_coalesce_usecs;
 621         qdev->rx_max_coalesced_frames = c->rx_max_coalesced_frames;
 622         qdev->tx_max_coalesced_frames = c->tx_max_coalesced_frames;
 623
 624         return ql_update_ring_coalescing(qdev);
 625 }
 626
 627 static void ql_get_pauseparam(struct net_device *netdev,
 628                         struct ethtool_pauseparam *pause)
 629 {
 630         struct ql_adapter *qdev = netdev_priv(netdev);
 631
 632         ql_mb_get_port_cfg(qdev);
 633         if (qdev->link_config & CFG_PAUSE_STD) {
 634                 pause->rx_pause = 1;
 635                 pause->tx_pause = 1;
 636         }
 637 }
 638
 639 static int ql_set_pauseparam(struct net_device *netdev,
 640                         struct ethtool_pauseparam *pause)
 641 {
 642         struct ql_adapter *qdev = netdev_priv(netdev);
 643         int status = 0;
 644
 645         if ((pause->rx_pause) && (pause->tx_pause))
 646                 qdev->link_config |= CFG_PAUSE_STD;
 647         else if (!pause->rx_pause && !pause->tx_pause)
 648                 qdev->link_config &= ~CFG_PAUSE_STD;
 649         else
 650                 return -EINVAL;
 651
 652         status = ql_mb_set_port_cfg(qdev);
 653         if (status)
 654                 return status;
 655         return status;
 656 }
 657
 658 static u32 ql_get_msglevel(struct net_device *ndev)
 659 {
 660         struct ql_adapter *qdev = netdev_priv(ndev);
 661         return qdev->msg_enable;
 662 }
 663
 664 static void ql_set_msglevel(struct net_device *ndev, u32 value)
 665 {
 666         struct ql_adapter *qdev = netdev_priv(ndev);
 667         qdev->msg_enable = value;
 668 }
 669
 670 const struct ethtool_ops qlge_ethtool_ops = {
 671         .get_settings = ql_get_settings,
 672         .get_drvinfo = ql_get_drvinfo,
 673         .get_wol = ql_get_wol,
 674         .set_wol = ql_set_wol,
 675         .get_regs_len   = ql_get_regs_len,
 676         .get_regs = ql_get_regs,
 677         .get_msglevel = ql_get_msglevel,
 678         .set_msglevel = ql_set_msglevel,
 679         .get_link = ethtool_op_get_link,
 680         .set_phys_id             = ql_set_phys_id,
 681         .self_test               = ql_self_test,
 682         .get_pauseparam          = ql_get_pauseparam,
 683         .set_pauseparam          = ql_set_pauseparam,
 684         .get_coalesce = ql_get_coalesce,
 685         .set_coalesce = ql_set_coalesce,
 686         .get_sset_count = ql_get_sset_count,
 687         .get_strings = ql_get_strings,
 688         .get_ethtool_stats = ql_get_ethtool_stats,
 689 };
 690