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/slab.h>
  11 #include <linux/dmapool.h>
  12 #include <linux/mempool.h>
  13 #include <linux/spinlock.h>
  14 #include <linux/kthread.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/errno.h>
  17 #include <linux/ioport.h>
  18 #include <linux/in.h>
  19 #include <linux/ip.h>
  20 #include <linux/ipv6.h>
  21 #include <net/ipv6.h>
  22 #include <linux/tcp.h>
  23 #include <linux/udp.h>
  24 #include <linux/if_arp.h>
  25 #include <linux/if_ether.h>
  26 #include <linux/netdevice.h>
  27 #include <linux/etherdevice.h>
  28 #include <linux/ethtool.h>
  29 #include <linux/skbuff.h>
  30 #include <linux/rtnetlink.h>
  31 #include <linux/if_vlan.h>
  32 #include <linux/delay.h>
  33 #include <linux/mm.h>
  34 #include <linux/vmalloc.h>
  35
  36
  37 #include "qlge.h"
  38
  39 static int ql_update_ring_coalescing(struct ql_adapter *qdev)
  40 {
  41         int i, status = 0;
  42         struct rx_ring *rx_ring;
  43         struct cqicb *cqicb;
  44
  45         if (!netif_running(qdev->ndev))
  46                 return status;
  47
  48         /* Skip the default queue, and update the outbound handler
  49          * queues if they changed.
  50          */
  51         cqicb = (struct cqicb *)&qdev->rx_ring[qdev->rss_ring_count];
  52         if (le16_to_cpu(cqicb->irq_delay) != qdev->tx_coalesce_usecs ||
  53                 le16_to_cpu(cqicb->pkt_delay) !=
  54                                 qdev->tx_max_coalesced_frames) {
  55                 for (i = qdev->rss_ring_count; i < qdev->rx_ring_count; i++) {
  56                         rx_ring = &qdev->rx_ring[i];
  57                         cqicb = (struct cqicb *)rx_ring;
  58                         cqicb->irq_delay = cpu_to_le16(qdev->tx_coalesce_usecs);
  59                         cqicb->pkt_delay =
  60                             cpu_to_le16(qdev->tx_max_coalesced_frames);
  61                         cqicb->flags = FLAGS_LI;
  62                         status = ql_write_cfg(qdev, cqicb, sizeof(*cqicb),
  63                                                 CFG_LCQ, rx_ring->cq_id);
  64                         if (status) {
  65                                 QPRINTK(qdev, IFUP, ERR,
  66                                         "Failed to load CQICB.\n");
  67                                 goto exit;
  68                         }
  69                 }
  70         }
  71
  72         /* Update the inbound (RSS) handler queues if they changed. */
  73         cqicb = (struct cqicb *)&qdev->rx_ring[0];
  74         if (le16_to_cpu(cqicb->irq_delay) != qdev->rx_coalesce_usecs ||
  75                 le16_to_cpu(cqicb->pkt_delay) !=
  76                                         qdev->rx_max_coalesced_frames) {
  77                 for (i = 0; i < qdev->rss_ring_count; i++, rx_ring++) {
  78                         rx_ring = &qdev->rx_ring[i];
  79                         cqicb = (struct cqicb *)rx_ring;
  80                         cqicb->irq_delay = cpu_to_le16(qdev->rx_coalesce_usecs);
  81                         cqicb->pkt_delay =
  82                             cpu_to_le16(qdev->rx_max_coalesced_frames);
  83                         cqicb->flags = FLAGS_LI;
  84                         status = ql_write_cfg(qdev, cqicb, sizeof(*cqicb),
  85                                                 CFG_LCQ, rx_ring->cq_id);
  86                         if (status) {
  87                                 QPRINTK(qdev, IFUP, ERR,
  88                                         "Failed to load CQICB.\n");
  89                                 goto exit;
  90                         }
  91                 }
  92         }
  93 exit:
  94         return status;
  95 }
  96
  97 static void ql_update_stats(struct ql_adapter *qdev)
  98 {
  99         u32 i;
 100         u64 data;
 101         u64 *iter = &qdev->nic_stats.tx_pkts;
 102
 103         spin_lock(&qdev->stats_lock);
 104         if (ql_sem_spinlock(qdev, qdev->xg_sem_mask)) {
 105                         QPRINTK(qdev, DRV, ERR,
 106                                 "Couldn't get xgmac sem.\n");
 107                 goto quit;
 108         }
 109         /*
 110          * Get TX statistics.
 111          */
 112         for (i = 0x200; i < 0x280; i += 8) {
 113                 if (ql_read_xgmac_reg64(qdev, i, &data)) {
 114                         QPRINTK(qdev, DRV, ERR,
 115                                 "Error reading status register 0x%.04x.\n", i);
 116                         goto end;
 117                 } else
 118                         *iter = data;
 119                 iter++;
 120         }
 121
 122         /*
 123          * Get RX statistics.
 124          */
 125         for (i = 0x300; i < 0x3d0; i += 8) {
 126                 if (ql_read_xgmac_reg64(qdev, i, &data)) {
 127                         QPRINTK(qdev, DRV, ERR,
 128                                 "Error reading status register 0x%.04x.\n", i);
 129                         goto end;
 130                 } else
 131                         *iter = data;
 132                 iter++;
 133         }
 134
 135 end:
 136         ql_sem_unlock(qdev, qdev->xg_sem_mask);
 137 quit:
 138         spin_unlock(&qdev->stats_lock);
 139
 140         QL_DUMP_STAT(qdev);
 141
 142         return;
 143 }
 144
 145 static char ql_stats_str_arr[][ETH_GSTRING_LEN] = {
 146         {"tx_pkts"},
 147         {"tx_bytes"},
 148         {"tx_mcast_pkts"},
 149         {"tx_bcast_pkts"},
 150         {"tx_ucast_pkts"},
 151         {"tx_ctl_pkts"},
 152         {"tx_pause_pkts"},
 153         {"tx_64_pkts"},
 154         {"tx_65_to_127_pkts"},
 155         {"tx_128_to_255_pkts"},
 156         {"tx_256_511_pkts"},
 157         {"tx_512_to_1023_pkts"},
 158         {"tx_1024_to_1518_pkts"},
 159         {"tx_1519_to_max_pkts"},
 160         {"tx_undersize_pkts"},
 161         {"tx_oversize_pkts"},
 162         {"rx_bytes"},
 163         {"rx_bytes_ok"},
 164         {"rx_pkts"},
 165         {"rx_pkts_ok"},
 166         {"rx_bcast_pkts"},
 167         {"rx_mcast_pkts"},
 168         {"rx_ucast_pkts"},
 169         {"rx_undersize_pkts"},
 170         {"rx_oversize_pkts"},
 171         {"rx_jabber_pkts"},
 172         {"rx_undersize_fcerr_pkts"},
 173         {"rx_drop_events"},
 174         {"rx_fcerr_pkts"},
 175         {"rx_align_err"},
 176         {"rx_symbol_err"},
 177         {"rx_mac_err"},
 178         {"rx_ctl_pkts"},
 179         {"rx_pause_pkts"},
 180         {"rx_64_pkts"},
 181         {"rx_65_to_127_pkts"},
 182         {"rx_128_255_pkts"},
 183         {"rx_256_511_pkts"},
 184         {"rx_512_to_1023_pkts"},
 185         {"rx_1024_to_1518_pkts"},
 186         {"rx_1519_to_max_pkts"},
 187         {"rx_len_err_pkts"},
 188 };
 189
 190 static void ql_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
 191 {
 192         switch (stringset) {
 193         case ETH_SS_STATS:
 194                 memcpy(buf, ql_stats_str_arr, sizeof(ql_stats_str_arr));
 195                 break;
 196         }
 197 }
 198
 199 static int ql_get_sset_count(struct net_device *dev, int sset)
 200 {
 201         switch (sset) {
 202         case ETH_SS_STATS:
 203                 return ARRAY_SIZE(ql_stats_str_arr);
 204         default:
 205                 return -EOPNOTSUPP;
 206         }
 207 }
 208
 209 static void
 210 ql_get_ethtool_stats(struct net_device *ndev,
 211                      struct ethtool_stats *stats, u64 *data)
 212 {
 213         struct ql_adapter *qdev = netdev_priv(ndev);
 214         struct nic_stats *s = &qdev->nic_stats;
 215
 216         ql_update_stats(qdev);
 217
 218         *data++ = s->tx_pkts;
 219         *data++ = s->tx_bytes;
 220         *data++ = s->tx_mcast_pkts;
 221         *data++ = s->tx_bcast_pkts;
 222         *data++ = s->tx_ucast_pkts;
 223         *data++ = s->tx_ctl_pkts;
 224         *data++ = s->tx_pause_pkts;
 225         *data++ = s->tx_64_pkt;
 226         *data++ = s->tx_65_to_127_pkt;
 227         *data++ = s->tx_128_to_255_pkt;
 228         *data++ = s->tx_256_511_pkt;
 229         *data++ = s->tx_512_to_1023_pkt;
 230         *data++ = s->tx_1024_to_1518_pkt;
 231         *data++ = s->tx_1519_to_max_pkt;
 232         *data++ = s->tx_undersize_pkt;
 233         *data++ = s->tx_oversize_pkt;
 234         *data++ = s->rx_bytes;
 235         *data++ = s->rx_bytes_ok;
 236         *data++ = s->rx_pkts;
 237         *data++ = s->rx_pkts_ok;
 238         *data++ = s->rx_bcast_pkts;
 239         *data++ = s->rx_mcast_pkts;
 240         *data++ = s->rx_ucast_pkts;
 241         *data++ = s->rx_undersize_pkts;
 242         *data++ = s->rx_oversize_pkts;
 243         *data++ = s->rx_jabber_pkts;
 244         *data++ = s->rx_undersize_fcerr_pkts;
 245         *data++ = s->rx_drop_events;
 246         *data++ = s->rx_fcerr_pkts;
 247         *data++ = s->rx_align_err;
 248         *data++ = s->rx_symbol_err;
 249         *data++ = s->rx_mac_err;
 250         *data++ = s->rx_ctl_pkts;
 251         *data++ = s->rx_pause_pkts;
 252         *data++ = s->rx_64_pkts;
 253         *data++ = s->rx_65_to_127_pkts;
 254         *data++ = s->rx_128_255_pkts;
 255         *data++ = s->rx_256_511_pkts;
 256         *data++ = s->rx_512_to_1023_pkts;
 257         *data++ = s->rx_1024_to_1518_pkts;
 258         *data++ = s->rx_1519_to_max_pkts;
 259         *data++ = s->rx_len_err_pkts;
 260 }
 261
 262 static int ql_get_settings(struct net_device *ndev,
 263                               struct ethtool_cmd *ecmd)
 264 {
 265         struct ql_adapter *qdev = netdev_priv(ndev);
 266
 267         ecmd->supported = SUPPORTED_10000baseT_Full;
 268         ecmd->advertising = ADVERTISED_10000baseT_Full;
 269         ecmd->autoneg = AUTONEG_ENABLE;
 270         ecmd->transceiver = XCVR_EXTERNAL;
 271         if ((qdev->link_status & STS_LINK_TYPE_MASK) ==
 272                                 STS_LINK_TYPE_10GBASET) {
 273                 ecmd->supported |= (SUPPORTED_TP | SUPPORTED_Autoneg);
 274                 ecmd->advertising |= (ADVERTISED_TP | ADVERTISED_Autoneg);
 275                 ecmd->port = PORT_TP;
 276         } else {
 277                 ecmd->supported |= SUPPORTED_FIBRE;
 278                 ecmd->advertising |= ADVERTISED_FIBRE;
 279                 ecmd->port = PORT_FIBRE;
 280         }
 281
 282         ecmd->speed = SPEED_10000;
 283         ecmd->duplex = DUPLEX_FULL;
 284
 285         return 0;
 286 }
 287
 288 static void ql_get_drvinfo(struct net_device *ndev,
 289                            struct ethtool_drvinfo *drvinfo)
 290 {
 291         struct ql_adapter *qdev = netdev_priv(ndev);
 292         strncpy(drvinfo->driver, qlge_driver_name, 32);
 293         strncpy(drvinfo->version, qlge_driver_version, 32);
 294         snprintf(drvinfo->fw_version, 32, "v%d.%d.%d",
 295                  (qdev->fw_rev_id & 0x00ff0000) >> 16,
 296                  (qdev->fw_rev_id & 0x0000ff00) >> 8,
 297                  (qdev->fw_rev_id & 0x000000ff));
 298         strncpy(drvinfo->bus_info, pci_name(qdev->pdev), 32);
 299         drvinfo->n_stats = 0;
 300         drvinfo->testinfo_len = 0;
 301         drvinfo->regdump_len = 0;
 302         drvinfo->eedump_len = 0;
 303 }
 304
 305 static int ql_get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
 306 {
 307         struct ql_adapter *qdev = netdev_priv(dev);
 308
 309         c->rx_coalesce_usecs = qdev->rx_coalesce_usecs;
 310         c->tx_coalesce_usecs = qdev->tx_coalesce_usecs;
 311
 312         /* This chip coalesces as follows:
 313          * If a packet arrives, hold off interrupts until
 314          * cqicb->int_delay expires, but if no other packets arrive don't
 315          * wait longer than cqicb->pkt_int_delay. But ethtool doesn't use a
 316          * timer to coalesce on a frame basis.  So, we have to take ethtool's
 317          * max_coalesced_frames value and convert it to a delay in microseconds.
 318          * We do this by using a basic thoughput of 1,000,000 frames per
 319          * second @ (1024 bytes).  This means one frame per usec. So it's a
 320          * simple one to one ratio.
 321          */
 322         c->rx_max_coalesced_frames = qdev->rx_max_coalesced_frames;
 323         c->tx_max_coalesced_frames = qdev->tx_max_coalesced_frames;
 324
 325         return 0;
 326 }
 327
 328 static int ql_set_coalesce(struct net_device *ndev, struct ethtool_coalesce *c)
 329 {
 330         struct ql_adapter *qdev = netdev_priv(ndev);
 331
 332         /* Validate user parameters. */
 333         if (c->rx_coalesce_usecs > qdev->rx_ring_size / 2)
 334                 return -EINVAL;
 335        /* Don't wait more than 10 usec. */
 336         if (c->rx_max_coalesced_frames > MAX_INTER_FRAME_WAIT)
 337                 return -EINVAL;
 338         if (c->tx_coalesce_usecs > qdev->tx_ring_size / 2)
 339                 return -EINVAL;
 340         if (c->tx_max_coalesced_frames > MAX_INTER_FRAME_WAIT)
 341                 return -EINVAL;
 342
 343         /* Verify a change took place before updating the hardware. */
 344         if (qdev->rx_coalesce_usecs == c->rx_coalesce_usecs &&
 345             qdev->tx_coalesce_usecs == c->tx_coalesce_usecs &&
 346             qdev->rx_max_coalesced_frames == c->rx_max_coalesced_frames &&
 347             qdev->tx_max_coalesced_frames == c->tx_max_coalesced_frames)
 348                 return 0;
 349
 350         qdev->rx_coalesce_usecs = c->rx_coalesce_usecs;
 351         qdev->tx_coalesce_usecs = c->tx_coalesce_usecs;
 352         qdev->rx_max_coalesced_frames = c->rx_max_coalesced_frames;
 353         qdev->tx_max_coalesced_frames = c->tx_max_coalesced_frames;
 354
 355         return ql_update_ring_coalescing(qdev);
 356 }
 357
 358 static u32 ql_get_rx_csum(struct net_device *netdev)
 359 {
 360         struct ql_adapter *qdev = netdev_priv(netdev);
 361         return qdev->rx_csum;
 362 }
 363
 364 static int ql_set_rx_csum(struct net_device *netdev, uint32_t data)
 365 {
 366         struct ql_adapter *qdev = netdev_priv(netdev);
 367         qdev->rx_csum = data;
 368         return 0;
 369 }
 370
 371 static int ql_set_tso(struct net_device *ndev, uint32_t data)
 372 {
 373
 374         if (data) {
 375                 ndev->features |= NETIF_F_TSO;
 376                 ndev->features |= NETIF_F_TSO6;
 377         } else {
 378                 ndev->features &= ~NETIF_F_TSO;
 379                 ndev->features &= ~NETIF_F_TSO6;
 380         }
 381         return 0;
 382 }
 383
 384 static u32 ql_get_msglevel(struct net_device *ndev)
 385 {
 386         struct ql_adapter *qdev = netdev_priv(ndev);
 387         return qdev->msg_enable;
 388 }
 389
 390 static void ql_set_msglevel(struct net_device *ndev, u32 value)
 391 {
 392         struct ql_adapter *qdev = netdev_priv(ndev);
 393         qdev->msg_enable = value;
 394 }
 395
 396 const struct ethtool_ops qlge_ethtool_ops = {
 397         .get_settings = ql_get_settings,
 398         .get_drvinfo = ql_get_drvinfo,
 399         .get_msglevel = ql_get_msglevel,
 400         .set_msglevel = ql_set_msglevel,
 401         .get_link = ethtool_op_get_link,
 402         .get_rx_csum = ql_get_rx_csum,
 403         .set_rx_csum = ql_set_rx_csum,
 404         .get_tx_csum = ethtool_op_get_tx_csum,
 405         .set_tx_csum = ethtool_op_set_tx_csum,
 406         .get_sg = ethtool_op_get_sg,
 407         .set_sg = ethtool_op_set_sg,
 408         .get_tso = ethtool_op_get_tso,
 409         .set_tso = ql_set_tso,
 410         .get_coalesce = ql_get_coalesce,
 411         .set_coalesce = ql_set_coalesce,
 412         .get_sset_count = ql_get_sset_count,
 413         .get_strings = ql_get_strings,
 414         .get_ethtool_stats = ql_get_ethtool_stats,
 415 };
 416