drivers/net/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_MCAST_FLTR(struct mlx4_dev *dev, u8 port,
  45                         u64 mac, u64 clear, u8 mode)
  46 {
  47         return mlx4_cmd(dev, (mac | (clear << 63)), port, mode,
  48                         MLX4_CMD_SET_MCAST_FLTR, MLX4_CMD_TIME_CLASS_B);
  49 }
  50
  51 int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, u8 port, struct vlan_group *grp)
  52 {
  53         struct mlx4_cmd_mailbox *mailbox;
  54         struct mlx4_set_vlan_fltr_mbox *filter;
  55         int i;
  56         int j;
  57         int index = 0;
  58         u32 entry;
  59         int err = 0;
  60
  61         mailbox = mlx4_alloc_cmd_mailbox(dev);
  62         if (IS_ERR(mailbox))
  63                 return PTR_ERR(mailbox);
  64
  65         filter = mailbox->buf;
  66         if (grp) {
  67                 memset(filter, 0, sizeof *filter);
  68                 for (i = VLAN_FLTR_SIZE - 1; i >= 0; i--) {
  69                         entry = 0;
  70                         for (j = 0; j < 32; j++)
  71                                 if (vlan_group_get_device(grp, index++))
  72                                         entry |= 1 << j;
  73                         filter->entry[i] = cpu_to_be32(entry);
  74                 }
  75         } else {
  76                 /* When no vlans are configured we block all vlans */
  77                 memset(filter, 0, sizeof(*filter));
  78         }
  79         err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_SET_VLAN_FLTR,
  80                        MLX4_CMD_TIME_CLASS_B);
  81         mlx4_free_cmd_mailbox(dev, mailbox);
  82         return err;
  83 }
  84
  85
  86 int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
  87                           u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx)
  88 {
  89         struct mlx4_cmd_mailbox *mailbox;
  90         struct mlx4_set_port_general_context *context;
  91         int err;
  92         u32 in_mod;
  93
  94         mailbox = mlx4_alloc_cmd_mailbox(dev);
  95         if (IS_ERR(mailbox))
  96                 return PTR_ERR(mailbox);
  97         context = mailbox->buf;
  98         memset(context, 0, sizeof *context);
  99
 100         context->flags = SET_PORT_GEN_ALL_VALID;
 101         context->mtu = cpu_to_be16(mtu);
 102         context->pptx = (pptx * (!pfctx)) << 7;
 103         context->pfctx = pfctx;
 104         context->pprx = (pprx * (!pfcrx)) << 7;
 105         context->pfcrx = pfcrx;
 106
 107         in_mod = MLX4_SET_PORT_GENERAL << 8 | port;
 108         err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
 109                        MLX4_CMD_TIME_CLASS_B);
 110
 111         mlx4_free_cmd_mailbox(dev, mailbox);
 112         return err;
 113 }
 114
 115 int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
 116                            u8 promisc)
 117 {
 118         struct mlx4_cmd_mailbox *mailbox;
 119         struct mlx4_set_port_rqp_calc_context *context;
 120         int err;
 121         u32 in_mod;
 122         u32 m_promisc = (dev->caps.vep_mc_steering) ? MCAST_DIRECT : MCAST_DEFAULT;
 123
 124         if (dev->caps.vep_mc_steering && dev->caps.vep_uc_steering)
 125                 return 0;
 126
 127         mailbox = mlx4_alloc_cmd_mailbox(dev);
 128         if (IS_ERR(mailbox))
 129                 return PTR_ERR(mailbox);
 130         context = mailbox->buf;
 131         memset(context, 0, sizeof *context);
 132
 133         context->base_qpn = cpu_to_be32(base_qpn);
 134         context->n_mac = 0x7;
 135         context->promisc = cpu_to_be32(promisc << SET_PORT_PROMISC_SHIFT |
 136                                        base_qpn);
 137         context->mcast = cpu_to_be32(m_promisc << SET_PORT_MC_PROMISC_SHIFT |
 138                                      base_qpn);
 139         context->intra_no_vlan = 0;
 140         context->no_vlan = MLX4_NO_VLAN_IDX;
 141         context->intra_vlan_miss = 0;
 142         context->vlan_miss = MLX4_VLAN_MISS_IDX;
 143
 144         in_mod = MLX4_SET_PORT_RQP_CALC << 8 | port;
 145         err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
 146                        MLX4_CMD_TIME_CLASS_B);
 147
 148         mlx4_free_cmd_mailbox(dev, mailbox);
 149         return err;
 150 }
 151
 152 int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port)
 153 {
 154         struct mlx4_en_query_port_context *qport_context;
 155         struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
 156         struct mlx4_en_port_state *state = &priv->port_state;
 157         struct mlx4_cmd_mailbox *mailbox;
 158         int err;
 159
 160         mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
 161         if (IS_ERR(mailbox))
 162                 return PTR_ERR(mailbox);
 163         memset(mailbox->buf, 0, sizeof(*qport_context));
 164         err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
 165                            MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B);
 166         if (err)
 167                 goto out;
 168         qport_context = mailbox->buf;
 169
 170         /* This command is always accessed from Ethtool context
 171          * already synchronized, no need in locking */
 172         state->link_state = !!(qport_context->link_up & MLX4_EN_LINK_UP_MASK);
 173         if ((qport_context->link_speed & MLX4_EN_SPEED_MASK) ==
 174             MLX4_EN_1G_SPEED)
 175                 state->link_speed = 1000;
 176         else
 177                 state->link_speed = 10000;
 178         state->transciver = qport_context->transceiver;
 179
 180 out:
 181         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
 182         return err;
 183 }
 184
 185 int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
 186 {
 187         struct mlx4_en_stat_out_mbox *mlx4_en_stats;
 188         struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
 189         struct net_device_stats *stats = &priv->stats;
 190         struct mlx4_cmd_mailbox *mailbox;
 191         u64 in_mod = reset << 8 | port;
 192         int err;
 193         int i;
 194
 195         mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
 196         if (IS_ERR(mailbox))
 197                 return PTR_ERR(mailbox);
 198         memset(mailbox->buf, 0, sizeof(*mlx4_en_stats));
 199         err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, in_mod, 0,
 200                            MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B);
 201         if (err)
 202                 goto out;
 203
 204         mlx4_en_stats = mailbox->buf;
 205
 206         spin_lock_bh(&priv->stats_lock);
 207
 208         stats->rx_packets = 0;
 209         stats->rx_bytes = 0;
 210         for (i = 0; i < priv->rx_ring_num; i++) {
 211                 stats->rx_packets += priv->rx_ring[i].packets;
 212                 stats->rx_bytes += priv->rx_ring[i].bytes;
 213         }
 214         stats->tx_packets = 0;
 215         stats->tx_bytes = 0;
 216         for (i = 0; i < priv->tx_ring_num; i++) {
 217                 stats->tx_packets += priv->tx_ring[i].packets;
 218                 stats->tx_bytes += priv->tx_ring[i].bytes;
 219         }
 220
 221         stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +
 222                            be32_to_cpu(mlx4_en_stats->RdropLength) +
 223                            be32_to_cpu(mlx4_en_stats->RJBBR) +
 224                            be32_to_cpu(mlx4_en_stats->RCRC) +
 225                            be32_to_cpu(mlx4_en_stats->RRUNT);
 226         stats->tx_errors = be32_to_cpu(mlx4_en_stats->TDROP);
 227         stats->multicast = be64_to_cpu(mlx4_en_stats->MCAST_prio_0) +
 228                            be64_to_cpu(mlx4_en_stats->MCAST_prio_1) +
 229                            be64_to_cpu(mlx4_en_stats->MCAST_prio_2) +
 230                            be64_to_cpu(mlx4_en_stats->MCAST_prio_3) +
 231                            be64_to_cpu(mlx4_en_stats->MCAST_prio_4) +
 232                            be64_to_cpu(mlx4_en_stats->MCAST_prio_5) +
 233                            be64_to_cpu(mlx4_en_stats->MCAST_prio_6) +
 234                            be64_to_cpu(mlx4_en_stats->MCAST_prio_7) +
 235                            be64_to_cpu(mlx4_en_stats->MCAST_novlan);
 236         stats->collisions = 0;
 237         stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength);
 238         stats->rx_over_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
 239         stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC);
 240         stats->rx_frame_errors = 0;
 241         stats->rx_fifo_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
 242         stats->rx_missed_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
 243         stats->tx_aborted_errors = 0;
 244         stats->tx_carrier_errors = 0;
 245         stats->tx_fifo_errors = 0;
 246         stats->tx_heartbeat_errors = 0;
 247         stats->tx_window_errors = 0;
 248
 249         priv->pkstats.broadcast =
 250                                 be64_to_cpu(mlx4_en_stats->RBCAST_prio_0) +
 251                                 be64_to_cpu(mlx4_en_stats->RBCAST_prio_1) +
 252                                 be64_to_cpu(mlx4_en_stats->RBCAST_prio_2) +
 253                                 be64_to_cpu(mlx4_en_stats->RBCAST_prio_3) +
 254                                 be64_to_cpu(mlx4_en_stats->RBCAST_prio_4) +
 255                                 be64_to_cpu(mlx4_en_stats->RBCAST_prio_5) +
 256                                 be64_to_cpu(mlx4_en_stats->RBCAST_prio_6) +
 257                                 be64_to_cpu(mlx4_en_stats->RBCAST_prio_7) +
 258                                 be64_to_cpu(mlx4_en_stats->RBCAST_novlan);
 259         priv->pkstats.rx_prio[0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_0);
 260         priv->pkstats.rx_prio[1] = be64_to_cpu(mlx4_en_stats->RTOT_prio_1);
 261         priv->pkstats.rx_prio[2] = be64_to_cpu(mlx4_en_stats->RTOT_prio_2);
 262         priv->pkstats.rx_prio[3] = be64_to_cpu(mlx4_en_stats->RTOT_prio_3);
 263         priv->pkstats.rx_prio[4] = be64_to_cpu(mlx4_en_stats->RTOT_prio_4);
 264         priv->pkstats.rx_prio[5] = be64_to_cpu(mlx4_en_stats->RTOT_prio_5);
 265         priv->pkstats.rx_prio[6] = be64_to_cpu(mlx4_en_stats->RTOT_prio_6);
 266         priv->pkstats.rx_prio[7] = be64_to_cpu(mlx4_en_stats->RTOT_prio_7);
 267         priv->pkstats.tx_prio[0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_0);
 268         priv->pkstats.tx_prio[1] = be64_to_cpu(mlx4_en_stats->TTOT_prio_1);
 269         priv->pkstats.tx_prio[2] = be64_to_cpu(mlx4_en_stats->TTOT_prio_2);
 270         priv->pkstats.tx_prio[3] = be64_to_cpu(mlx4_en_stats->TTOT_prio_3);
 271         priv->pkstats.tx_prio[4] = be64_to_cpu(mlx4_en_stats->TTOT_prio_4);
 272         priv->pkstats.tx_prio[5] = be64_to_cpu(mlx4_en_stats->TTOT_prio_5);
 273         priv->pkstats.tx_prio[6] = be64_to_cpu(mlx4_en_stats->TTOT_prio_6);
 274         priv->pkstats.tx_prio[7] = be64_to_cpu(mlx4_en_stats->TTOT_prio_7);
 275         spin_unlock_bh(&priv->stats_lock);
 276
 277 out:
 278         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
 279         return err;
 280 }
 281