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