drivers/net/ethernet/mellanox/mlx4/en_port.c

   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
  44 int 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
  72 int 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
 126 out:
 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  */
 135 static 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
 150 void 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
 183 int 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
 409 out:
 410         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
 411         return err;
 412 }
 413