linux/drivers/net/ethernet/mellanox/mlx4/en_port.c
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   1/*
   2 * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
   3 *
   4 * This software is available to you under a choice of one of two
   5 * licenses.  You may choose to be licensed under the terms of the GNU
   6 * General Public License (GPL) Version 2, available from the file
   7 * COPYING in the main directory of this source tree, or the
   8 * OpenIB.org BSD license below:
   9 *
  10 *     Redistribution and use in source and binary forms, with or
  11 *     without modification, are permitted provided that the following
  12 *     conditions are met:
  13 *
  14 *      - Redistributions of source code must retain the above
  15 *        copyright notice, this list of conditions and the following
  16 *        disclaimer.
  17 *
  18 *      - Redistributions in binary form must reproduce the above
  19 *        copyright notice, this list of conditions and the following
  20 *        disclaimer in the documentation and/or other materials
  21 *        provided with the distribution.
  22 *
  23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30 * SOFTWARE.
  31 *
  32 */
  33
  34
  35#include <linux/if_vlan.h>
  36
  37#include <linux/mlx4/device.h>
  38#include <linux/mlx4/cmd.h>
  39
  40#include "en_port.h"
  41#include "mlx4_en.h"
  42
  43
  44int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv)
  45{
  46        struct mlx4_cmd_mailbox *mailbox;
  47        struct mlx4_set_vlan_fltr_mbox *filter;
  48        int i;
  49        int j;
  50        int index = 0;
  51        u32 entry;
  52        int err = 0;
  53
  54        mailbox = mlx4_alloc_cmd_mailbox(dev);
  55        if (IS_ERR(mailbox))
  56                return PTR_ERR(mailbox);
  57
  58        filter = mailbox->buf;
  59        for (i = VLAN_FLTR_SIZE - 1; i >= 0; i--) {
  60                entry = 0;
  61                for (j = 0; j < 32; j++)
  62                        if (test_bit(index++, priv->active_vlans))
  63                                entry |= 1 << j;
  64                filter->entry[i] = cpu_to_be32(entry);
  65        }
  66        err = mlx4_cmd(dev, mailbox->dma, priv->port, 0, MLX4_CMD_SET_VLAN_FLTR,
  67                       MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
  68        mlx4_free_cmd_mailbox(dev, mailbox);
  69        return err;
  70}
  71
  72int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port)
  73{
  74        struct mlx4_en_query_port_context *qport_context;
  75        struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
  76        struct mlx4_en_port_state *state = &priv->port_state;
  77        struct mlx4_cmd_mailbox *mailbox;
  78        int err;
  79
  80        mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
  81        if (IS_ERR(mailbox))
  82                return PTR_ERR(mailbox);
  83        err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
  84                           MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
  85                           MLX4_CMD_WRAPPED);
  86        if (err)
  87                goto out;
  88        qport_context = mailbox->buf;
  89
  90        /* This command is always accessed from Ethtool context
  91         * already synchronized, no need in locking */
  92        state->link_state = !!(qport_context->link_up & MLX4_EN_LINK_UP_MASK);
  93        switch (qport_context->link_speed & MLX4_EN_SPEED_MASK) {
  94        case MLX4_EN_100M_SPEED:
  95                state->link_speed = SPEED_100;
  96                break;
  97        case MLX4_EN_1G_SPEED:
  98                state->link_speed = SPEED_1000;
  99                break;
 100        case MLX4_EN_10G_SPEED_XAUI:
 101        case MLX4_EN_10G_SPEED_XFI:
 102                state->link_speed = SPEED_10000;
 103                break;
 104        case MLX4_EN_20G_SPEED:
 105                state->link_speed = SPEED_20000;
 106                break;
 107        case MLX4_EN_40G_SPEED:
 108                state->link_speed = SPEED_40000;
 109                break;
 110        case MLX4_EN_56G_SPEED:
 111                state->link_speed = SPEED_56000;
 112                break;
 113        default:
 114                state->link_speed = -1;
 115                break;
 116        }
 117
 118        state->transceiver = qport_context->transceiver;
 119
 120        state->flags = 0; /* Reset and recalculate the port flags */
 121        state->flags |= (qport_context->link_up & MLX4_EN_ANC_MASK) ?
 122                MLX4_EN_PORT_ANC : 0;
 123        state->flags |= (qport_context->autoneg & MLX4_EN_AUTONEG_MASK) ?
 124                MLX4_EN_PORT_ANE : 0;
 125
 126out:
 127        mlx4_free_cmd_mailbox(mdev->dev, mailbox);
 128        return err;
 129}
 130
 131/* Each counter set is located in struct mlx4_en_stat_out_mbox
 132 * with a const offset between its prio components.
 133 * This function runs over a counter set and sum all of it's prio components.
 134 */
 135static unsigned long en_stats_adder(__be64 *start, __be64 *next, int num)
 136{
 137        __be64 *curr = start;
 138        unsigned long ret = 0;
 139        int i;
 140        int offset = next - start;
 141
 142        for (i = 0; i < num; i++) {
 143                ret += be64_to_cpu(*curr);
 144                curr += offset;
 145        }
 146
 147        return ret;
 148}
 149
 150void mlx4_en_fold_software_stats(struct net_device *dev)
 151{
 152        struct mlx4_en_priv *priv = netdev_priv(dev);
 153        struct mlx4_en_dev *mdev = priv->mdev;
 154        unsigned long packets, bytes;
 155        int i;
 156
 157        if (!priv->port_up || mlx4_is_master(mdev->dev))
 158                return;
 159
 160        packets = 0;
 161        bytes = 0;
 162        for (i = 0; i < priv->rx_ring_num; i++) {
 163                const struct mlx4_en_rx_ring *ring = priv->rx_ring[i];
 164
 165                packets += READ_ONCE(ring->packets);
 166                bytes   += READ_ONCE(ring->bytes);
 167        }
 168        dev->stats.rx_packets = packets;
 169        dev->stats.rx_bytes = bytes;
 170
 171        packets = 0;
 172        bytes = 0;
 173        for (i = 0; i < priv->tx_ring_num[TX]; i++) {
 174                const struct mlx4_en_tx_ring *ring = priv->tx_ring[TX][i];
 175
 176                packets += READ_ONCE(ring->packets);
 177                bytes   += READ_ONCE(ring->bytes);
 178        }
 179        dev->stats.tx_packets = packets;
 180        dev->stats.tx_bytes = bytes;
 181}
 182
 183int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
 184{
 185        struct mlx4_counter tmp_counter_stats;
 186        struct mlx4_en_stat_out_mbox *mlx4_en_stats;
 187        struct mlx4_en_stat_out_flow_control_mbox *flowstats;
 188        struct net_device *dev = mdev->pndev[port];
 189        struct mlx4_en_priv *priv = netdev_priv(dev);
 190        struct net_device_stats *stats = &dev->stats;
 191        struct mlx4_cmd_mailbox *mailbox;
 192        u64 in_mod = reset << 8 | port;
 193        int err;
 194        int i, counter_index;
 195        unsigned long sw_tx_dropped = 0;
 196        unsigned long sw_rx_dropped = 0;
 197
 198        mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
 199        if (IS_ERR(mailbox))
 200                return PTR_ERR(mailbox);
 201        err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, in_mod, 0,
 202                           MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B,
 203                           MLX4_CMD_NATIVE);
 204        if (err)
 205                goto out;
 206
 207        mlx4_en_stats = mailbox->buf;
 208
 209        spin_lock_bh(&priv->stats_lock);
 210
 211        mlx4_en_fold_software_stats(dev);
 212
 213        priv->port_stats.rx_chksum_good = 0;
 214        priv->port_stats.rx_chksum_none = 0;
 215        priv->port_stats.rx_chksum_complete = 0;
 216        priv->xdp_stats.rx_xdp_drop    = 0;
 217        priv->xdp_stats.rx_xdp_tx      = 0;
 218        priv->xdp_stats.rx_xdp_tx_full = 0;
 219        for (i = 0; i < priv->rx_ring_num; i++) {
 220                const struct mlx4_en_rx_ring *ring = priv->rx_ring[i];
 221
 222                sw_rx_dropped                   += READ_ONCE(ring->dropped);
 223                priv->port_stats.rx_chksum_good += READ_ONCE(ring->csum_ok);
 224                priv->port_stats.rx_chksum_none += READ_ONCE(ring->csum_none);
 225                priv->port_stats.rx_chksum_complete += READ_ONCE(ring->csum_complete);
 226                priv->xdp_stats.rx_xdp_drop     += READ_ONCE(ring->xdp_drop);
 227                priv->xdp_stats.rx_xdp_tx       += READ_ONCE(ring->xdp_tx);
 228                priv->xdp_stats.rx_xdp_tx_full  += READ_ONCE(ring->xdp_tx_full);
 229        }
 230        priv->port_stats.tx_chksum_offload = 0;
 231        priv->port_stats.queue_stopped = 0;
 232        priv->port_stats.wake_queue = 0;
 233        priv->port_stats.tso_packets = 0;
 234        priv->port_stats.xmit_more = 0;
 235
 236        for (i = 0; i < priv->tx_ring_num[TX]; i++) {
 237                const struct mlx4_en_tx_ring *ring = priv->tx_ring[TX][i];
 238
 239                sw_tx_dropped                      += READ_ONCE(ring->tx_dropped);
 240                priv->port_stats.tx_chksum_offload += READ_ONCE(ring->tx_csum);
 241                priv->port_stats.queue_stopped     += READ_ONCE(ring->queue_stopped);
 242                priv->port_stats.wake_queue        += READ_ONCE(ring->wake_queue);
 243                priv->port_stats.tso_packets       += READ_ONCE(ring->tso_packets);
 244                priv->port_stats.xmit_more         += READ_ONCE(ring->xmit_more);
 245        }
 246
 247        if (mlx4_is_master(mdev->dev)) {
 248                stats->rx_packets = en_stats_adder(&mlx4_en_stats->RTOT_prio_0,
 249                                                   &mlx4_en_stats->RTOT_prio_1,
 250                                                   NUM_PRIORITIES);
 251                stats->tx_packets = en_stats_adder(&mlx4_en_stats->TTOT_prio_0,
 252                                                   &mlx4_en_stats->TTOT_prio_1,
 253                                                   NUM_PRIORITIES);
 254                stats->rx_bytes = en_stats_adder(&mlx4_en_stats->ROCT_prio_0,
 255                                                 &mlx4_en_stats->ROCT_prio_1,
 256                                                 NUM_PRIORITIES);
 257                stats->tx_bytes = en_stats_adder(&mlx4_en_stats->TOCT_prio_0,
 258                                                 &mlx4_en_stats->TOCT_prio_1,
 259                                                 NUM_PRIORITIES);
 260        }
 261
 262        /* net device stats */
 263        stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +
 264                           be32_to_cpu(mlx4_en_stats->RJBBR) +
 265                           be32_to_cpu(mlx4_en_stats->RCRC) +
 266                           be32_to_cpu(mlx4_en_stats->RRUNT) +
 267                           be64_to_cpu(mlx4_en_stats->RInRangeLengthErr) +
 268                           be64_to_cpu(mlx4_en_stats->ROutRangeLengthErr) +
 269                           be32_to_cpu(mlx4_en_stats->RSHORT) +
 270                           en_stats_adder(&mlx4_en_stats->RGIANT_prio_0,
 271                                          &mlx4_en_stats->RGIANT_prio_1,
 272                                          NUM_PRIORITIES);
 273        stats->tx_errors = en_stats_adder(&mlx4_en_stats->TGIANT_prio_0,
 274                                          &mlx4_en_stats->TGIANT_prio_1,
 275                                          NUM_PRIORITIES);
 276        stats->multicast = en_stats_adder(&mlx4_en_stats->MCAST_prio_0,
 277                                          &mlx4_en_stats->MCAST_prio_1,
 278                                          NUM_PRIORITIES);
 279        stats->rx_dropped = be32_to_cpu(mlx4_en_stats->RDROP) +
 280                            sw_rx_dropped;
 281        stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength);
 282        stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC);
 283        stats->rx_fifo_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
 284        stats->tx_dropped = be32_to_cpu(mlx4_en_stats->TDROP) +
 285                            sw_tx_dropped;
 286
 287        /* RX stats */
 288        priv->pkstats.rx_multicast_packets = stats->multicast;
 289        priv->pkstats.rx_broadcast_packets =
 290                        en_stats_adder(&mlx4_en_stats->RBCAST_prio_0,
 291                                       &mlx4_en_stats->RBCAST_prio_1,
 292                                       NUM_PRIORITIES);
 293        priv->pkstats.rx_jabbers = be32_to_cpu(mlx4_en_stats->RJBBR);
 294        priv->pkstats.rx_in_range_length_error =
 295                be64_to_cpu(mlx4_en_stats->RInRangeLengthErr);
 296        priv->pkstats.rx_out_range_length_error =
 297                be64_to_cpu(mlx4_en_stats->ROutRangeLengthErr);
 298
 299        /* Tx stats */
 300        priv->pkstats.tx_multicast_packets =
 301                en_stats_adder(&mlx4_en_stats->TMCAST_prio_0,
 302                               &mlx4_en_stats->TMCAST_prio_1,
 303                               NUM_PRIORITIES);
 304        priv->pkstats.tx_broadcast_packets =
 305                en_stats_adder(&mlx4_en_stats->TBCAST_prio_0,
 306                               &mlx4_en_stats->TBCAST_prio_1,
 307                               NUM_PRIORITIES);
 308
 309        priv->pkstats.rx_prio[0][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_0);
 310        priv->pkstats.rx_prio[0][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_0);
 311        priv->pkstats.rx_prio[1][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_1);
 312        priv->pkstats.rx_prio[1][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_1);
 313        priv->pkstats.rx_prio[2][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_2);
 314        priv->pkstats.rx_prio[2][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_2);
 315        priv->pkstats.rx_prio[3][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_3);
 316        priv->pkstats.rx_prio[3][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_3);
 317        priv->pkstats.rx_prio[4][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_4);
 318        priv->pkstats.rx_prio[4][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_4);
 319        priv->pkstats.rx_prio[5][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_5);
 320        priv->pkstats.rx_prio[5][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_5);
 321        priv->pkstats.rx_prio[6][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_6);
 322        priv->pkstats.rx_prio[6][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_6);
 323        priv->pkstats.rx_prio[7][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_7);
 324        priv->pkstats.rx_prio[7][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_7);
 325        priv->pkstats.rx_prio[8][0] = be64_to_cpu(mlx4_en_stats->RTOT_novlan);
 326        priv->pkstats.rx_prio[8][1] = be64_to_cpu(mlx4_en_stats->ROCT_novlan);
 327        priv->pkstats.tx_prio[0][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_0);
 328        priv->pkstats.tx_prio[0][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_0);
 329        priv->pkstats.tx_prio[1][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_1);
 330        priv->pkstats.tx_prio[1][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_1);
 331        priv->pkstats.tx_prio[2][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_2);
 332        priv->pkstats.tx_prio[2][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_2);
 333        priv->pkstats.tx_prio[3][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_3);
 334        priv->pkstats.tx_prio[3][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_3);
 335        priv->pkstats.tx_prio[4][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_4);
 336        priv->pkstats.tx_prio[4][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_4);
 337        priv->pkstats.tx_prio[5][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_5);
 338        priv->pkstats.tx_prio[5][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_5);
 339        priv->pkstats.tx_prio[6][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_6);
 340        priv->pkstats.tx_prio[6][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_6);
 341        priv->pkstats.tx_prio[7][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_7);
 342        priv->pkstats.tx_prio[7][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_7);
 343        priv->pkstats.tx_prio[8][0] = be64_to_cpu(mlx4_en_stats->TTOT_novlan);
 344        priv->pkstats.tx_prio[8][1] = be64_to_cpu(mlx4_en_stats->TOCT_novlan);
 345
 346        spin_unlock_bh(&priv->stats_lock);
 347
 348        memset(&tmp_counter_stats, 0, sizeof(tmp_counter_stats));
 349        counter_index = mlx4_get_default_counter_index(mdev->dev, port);
 350        err = mlx4_get_counter_stats(mdev->dev, counter_index,
 351                                     &tmp_counter_stats, reset);
 352
 353        /* 0xffs indicates invalid value */
 354        memset(mailbox->buf, 0xff, sizeof(*flowstats) * MLX4_NUM_PRIORITIES);
 355
 356        if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN) {
 357                memset(mailbox->buf, 0,
 358                       sizeof(*flowstats) * MLX4_NUM_PRIORITIES);
 359                err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma,
 360                                   in_mod | MLX4_DUMP_ETH_STATS_FLOW_CONTROL,
 361                                   0, MLX4_CMD_DUMP_ETH_STATS,
 362                                   MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
 363                if (err)
 364                        goto out;
 365        }
 366
 367        flowstats = mailbox->buf;
 368
 369        spin_lock_bh(&priv->stats_lock);
 370
 371        if (tmp_counter_stats.counter_mode == 0) {
 372                priv->pf_stats.rx_bytes   = be64_to_cpu(tmp_counter_stats.rx_bytes);
 373                priv->pf_stats.tx_bytes   = be64_to_cpu(tmp_counter_stats.tx_bytes);
 374                priv->pf_stats.rx_packets = be64_to_cpu(tmp_counter_stats.rx_frames);
 375                priv->pf_stats.tx_packets = be64_to_cpu(tmp_counter_stats.tx_frames);
 376        }
 377
 378        for (i = 0; i < MLX4_NUM_PRIORITIES; i++)       {
 379                priv->rx_priority_flowstats[i].rx_pause =
 380                        be64_to_cpu(flowstats[i].rx_pause);
 381                priv->rx_priority_flowstats[i].rx_pause_duration =
 382                        be64_to_cpu(flowstats[i].rx_pause_duration);
 383                priv->rx_priority_flowstats[i].rx_pause_transition =
 384                        be64_to_cpu(flowstats[i].rx_pause_transition);
 385                priv->tx_priority_flowstats[i].tx_pause =
 386                        be64_to_cpu(flowstats[i].tx_pause);
 387                priv->tx_priority_flowstats[i].tx_pause_duration =
 388                        be64_to_cpu(flowstats[i].tx_pause_duration);
 389                priv->tx_priority_flowstats[i].tx_pause_transition =
 390                        be64_to_cpu(flowstats[i].tx_pause_transition);
 391        }
 392
 393        /* if pfc is not in use, all priorities counters have the same value */
 394        priv->rx_flowstats.rx_pause =
 395                be64_to_cpu(flowstats[0].rx_pause);
 396        priv->rx_flowstats.rx_pause_duration =
 397                be64_to_cpu(flowstats[0].rx_pause_duration);
 398        priv->rx_flowstats.rx_pause_transition =
 399                be64_to_cpu(flowstats[0].rx_pause_transition);
 400        priv->tx_flowstats.tx_pause =
 401                be64_to_cpu(flowstats[0].tx_pause);
 402        priv->tx_flowstats.tx_pause_duration =
 403                be64_to_cpu(flowstats[0].tx_pause_duration);
 404        priv->tx_flowstats.tx_pause_transition =
 405                be64_to_cpu(flowstats[0].tx_pause_transition);
 406
 407        spin_unlock_bh(&priv->stats_lock);
 408
 409out:
 410        mlx4_free_cmd_mailbox(mdev->dev, mailbox);
 411        return err;
 412}
 413
 414