drivers/net/ethernet/intel/i40e/i40e_debugfs.c

   1 /*******************************************************************************
   2  *
   3  * Intel Ethernet Controller XL710 Family Linux Driver
   4  * Copyright(c) 2013 - 2016 Intel Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * The full GNU General Public License is included in this distribution in
  19  * the file called "COPYING".
  20  *
  21  * Contact Information:
  22  * e1000-devel Mailing List <[email protected]>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  ******************************************************************************/
  26
  27 #ifdef CONFIG_DEBUG_FS
  28
  29 #include <linux/fs.h>
  30 #include <linux/debugfs.h>
  31
  32 #include "i40e.h"
  33
  34 static struct dentry *i40e_dbg_root;
  35
  36 /**
  37  * i40e_dbg_find_vsi - searches for the vsi with the given seid
  38  * @pf - the PF structure to search for the vsi
  39  * @seid - seid of the vsi it is searching for
  40  **/
  41 static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
  42 {
  43         int i;
  44
  45         if (seid < 0)
  46                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
  47         else
  48                 for (i = 0; i < pf->num_alloc_vsi; i++)
  49                         if (pf->vsi[i] && (pf->vsi[i]->seid == seid))
  50                                 return pf->vsi[i];
  51
  52         return NULL;
  53 }
  54
  55 /**
  56  * i40e_dbg_find_veb - searches for the veb with the given seid
  57  * @pf - the PF structure to search for the veb
  58  * @seid - seid of the veb it is searching for
  59  **/
  60 static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
  61 {
  62         int i;
  63
  64         for (i = 0; i < I40E_MAX_VEB; i++)
  65                 if (pf->veb[i] && pf->veb[i]->seid == seid)
  66                         return pf->veb[i];
  67         return NULL;
  68 }
  69
  70 /**************************************************************
  71  * command
  72  * The command entry in debugfs is for giving the driver commands
  73  * to be executed - these may be for changing the internal switch
  74  * setup, adding or removing filters, or other things.  Many of
  75  * these will be useful for some forms of unit testing.
  76  **************************************************************/
  77 static char i40e_dbg_command_buf[256] = "";
  78
  79 /**
  80  * i40e_dbg_command_read - read for command datum
  81  * @filp: the opened file
  82  * @buffer: where to write the data for the user to read
  83  * @count: the size of the user's buffer
  84  * @ppos: file position offset
  85  **/
  86 static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
  87                                      size_t count, loff_t *ppos)
  88 {
  89         struct i40e_pf *pf = filp->private_data;
  90         int bytes_not_copied;
  91         int buf_size = 256;
  92         char *buf;
  93         int len;
  94
  95         /* don't allow partial reads */
  96         if (*ppos != 0)
  97                 return 0;
  98         if (count < buf_size)
  99                 return -ENOSPC;
 100
 101         buf = kzalloc(buf_size, GFP_KERNEL);
 102         if (!buf)
 103                 return -ENOSPC;
 104
 105         len = snprintf(buf, buf_size, "%s: %s\n",
 106                        pf->vsi[pf->lan_vsi]->netdev->name,
 107                        i40e_dbg_command_buf);
 108
 109         bytes_not_copied = copy_to_user(buffer, buf, len);
 110         kfree(buf);
 111
 112         if (bytes_not_copied)
 113                 return -EFAULT;
 114
 115         *ppos = len;
 116         return len;
 117 }
 118
 119 static char *i40e_filter_state_string[] = {
 120         "INVALID",
 121         "NEW",
 122         "ACTIVE",
 123         "FAILED",
 124         "REMOVE",
 125 };
 126
 127 /**
 128  * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
 129  * @pf: the i40e_pf created in command write
 130  * @seid: the seid the user put in
 131  **/
 132 static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 133 {
 134         struct rtnl_link_stats64 *nstat;
 135         struct i40e_mac_filter *f;
 136         struct i40e_vsi *vsi;
 137         int i, bkt;
 138
 139         vsi = i40e_dbg_find_vsi(pf, seid);
 140         if (!vsi) {
 141                 dev_info(&pf->pdev->dev,
 142                          "dump %d: seid not found\n", seid);
 143                 return;
 144         }
 145         dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
 146         if (vsi->netdev) {
 147                 struct net_device *nd = vsi->netdev;
 148
 149                 dev_info(&pf->pdev->dev, "    netdev: name = %s, state = %lu, flags = 0x%08x\n",
 150                          nd->name, nd->state, nd->flags);
 151                 dev_info(&pf->pdev->dev, "        features      = 0x%08lx\n",
 152                          (unsigned long int)nd->features);
 153                 dev_info(&pf->pdev->dev, "        hw_features   = 0x%08lx\n",
 154                          (unsigned long int)nd->hw_features);
 155                 dev_info(&pf->pdev->dev, "        vlan_features = 0x%08lx\n",
 156                          (unsigned long int)nd->vlan_features);
 157         }
 158         dev_info(&pf->pdev->dev,
 159                  "    vlgrp: & = %p\n", vsi->active_vlans);
 160         dev_info(&pf->pdev->dev,
 161                  "    flags = 0x%08lx, netdev_registered = %i, current_netdev_flags = 0x%04x\n",
 162                  vsi->flags, vsi->netdev_registered, vsi->current_netdev_flags);
 163         for (i = 0; i < BITS_TO_LONGS(__I40E_VSI_STATE_SIZE__); i++)
 164                 dev_info(&pf->pdev->dev,
 165                          "    state[%d] = %08lx\n",
 166                          i, vsi->state[i]);
 167         if (vsi == pf->vsi[pf->lan_vsi])
 168                 dev_info(&pf->pdev->dev, "    MAC address: %pM SAN MAC: %pM Port MAC: %pM\n",
 169                          pf->hw.mac.addr,
 170                          pf->hw.mac.san_addr,
 171                          pf->hw.mac.port_addr);
 172         hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
 173                 dev_info(&pf->pdev->dev,
 174                          "    mac_filter_hash: %pM vid=%d, state %s\n",
 175                          f->macaddr, f->vlan,
 176                          i40e_filter_state_string[f->state]);
 177         }
 178         dev_info(&pf->pdev->dev, "    active_filters %u, promisc_threshold %u, overflow promisc %s\n",
 179                  vsi->active_filters, vsi->promisc_threshold,
 180                  (test_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state) ?
 181                   "ON" : "OFF"));
 182         nstat = i40e_get_vsi_stats_struct(vsi);
 183         dev_info(&pf->pdev->dev,
 184                  "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 185                  (unsigned long int)nstat->rx_packets,
 186                  (unsigned long int)nstat->rx_bytes,
 187                  (unsigned long int)nstat->rx_errors,
 188                  (unsigned long int)nstat->rx_dropped);
 189         dev_info(&pf->pdev->dev,
 190                  "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 191                  (unsigned long int)nstat->tx_packets,
 192                  (unsigned long int)nstat->tx_bytes,
 193                  (unsigned long int)nstat->tx_errors,
 194                  (unsigned long int)nstat->tx_dropped);
 195         dev_info(&pf->pdev->dev,
 196                  "    net_stats: multicast = %lu, collisions = %lu\n",
 197                  (unsigned long int)nstat->multicast,
 198                  (unsigned long int)nstat->collisions);
 199         dev_info(&pf->pdev->dev,
 200                  "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 201                  (unsigned long int)nstat->rx_length_errors,
 202                  (unsigned long int)nstat->rx_over_errors,
 203                  (unsigned long int)nstat->rx_crc_errors);
 204         dev_info(&pf->pdev->dev,
 205                  "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 206                  (unsigned long int)nstat->rx_frame_errors,
 207                  (unsigned long int)nstat->rx_fifo_errors,
 208                  (unsigned long int)nstat->rx_missed_errors);
 209         dev_info(&pf->pdev->dev,
 210                  "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 211                  (unsigned long int)nstat->tx_aborted_errors,
 212                  (unsigned long int)nstat->tx_carrier_errors,
 213                  (unsigned long int)nstat->tx_fifo_errors);
 214         dev_info(&pf->pdev->dev,
 215                  "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 216                  (unsigned long int)nstat->tx_heartbeat_errors,
 217                  (unsigned long int)nstat->tx_window_errors);
 218         dev_info(&pf->pdev->dev,
 219                  "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
 220                  (unsigned long int)nstat->rx_compressed,
 221                  (unsigned long int)nstat->tx_compressed);
 222         dev_info(&pf->pdev->dev,
 223                  "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 224                  (unsigned long int)vsi->net_stats_offsets.rx_packets,
 225                  (unsigned long int)vsi->net_stats_offsets.rx_bytes,
 226                  (unsigned long int)vsi->net_stats_offsets.rx_errors,
 227                  (unsigned long int)vsi->net_stats_offsets.rx_dropped);
 228         dev_info(&pf->pdev->dev,
 229                  "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 230                  (unsigned long int)vsi->net_stats_offsets.tx_packets,
 231                  (unsigned long int)vsi->net_stats_offsets.tx_bytes,
 232                  (unsigned long int)vsi->net_stats_offsets.tx_errors,
 233                  (unsigned long int)vsi->net_stats_offsets.tx_dropped);
 234         dev_info(&pf->pdev->dev,
 235                  "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
 236                  (unsigned long int)vsi->net_stats_offsets.multicast,
 237                  (unsigned long int)vsi->net_stats_offsets.collisions);
 238         dev_info(&pf->pdev->dev,
 239                  "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 240                  (unsigned long int)vsi->net_stats_offsets.rx_length_errors,
 241                  (unsigned long int)vsi->net_stats_offsets.rx_over_errors,
 242                  (unsigned long int)vsi->net_stats_offsets.rx_crc_errors);
 243         dev_info(&pf->pdev->dev,
 244                  "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 245                  (unsigned long int)vsi->net_stats_offsets.rx_frame_errors,
 246                  (unsigned long int)vsi->net_stats_offsets.rx_fifo_errors,
 247                  (unsigned long int)vsi->net_stats_offsets.rx_missed_errors);
 248         dev_info(&pf->pdev->dev,
 249                  "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 250                  (unsigned long int)vsi->net_stats_offsets.tx_aborted_errors,
 251                  (unsigned long int)vsi->net_stats_offsets.tx_carrier_errors,
 252                  (unsigned long int)vsi->net_stats_offsets.tx_fifo_errors);
 253         dev_info(&pf->pdev->dev,
 254                  "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 255                  (unsigned long int)vsi->net_stats_offsets.tx_heartbeat_errors,
 256                  (unsigned long int)vsi->net_stats_offsets.tx_window_errors);
 257         dev_info(&pf->pdev->dev,
 258                  "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
 259                  (unsigned long int)vsi->net_stats_offsets.rx_compressed,
 260                  (unsigned long int)vsi->net_stats_offsets.tx_compressed);
 261         dev_info(&pf->pdev->dev,
 262                  "    tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n",
 263                  vsi->tx_restart, vsi->tx_busy,
 264                  vsi->rx_buf_failed, vsi->rx_page_failed);
 265         rcu_read_lock();
 266         for (i = 0; i < vsi->num_queue_pairs; i++) {
 267                 struct i40e_ring *rx_ring = READ_ONCE(vsi->rx_rings[i]);
 268
 269                 if (!rx_ring)
 270                         continue;
 271
 272                 dev_info(&pf->pdev->dev,
 273                          "    rx_rings[%i]: desc = %p\n",
 274                          i, rx_ring->desc);
 275                 dev_info(&pf->pdev->dev,
 276                          "    rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n",
 277                          i, rx_ring->dev,
 278                          rx_ring->netdev,
 279                          rx_ring->rx_bi);
 280                 dev_info(&pf->pdev->dev,
 281                          "    rx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 282                          i, *rx_ring->state,
 283                          rx_ring->queue_index,
 284                          rx_ring->reg_idx);
 285                 dev_info(&pf->pdev->dev,
 286                          "    rx_rings[%i]: rx_buf_len = %d\n",
 287                          i, rx_ring->rx_buf_len);
 288                 dev_info(&pf->pdev->dev,
 289                          "    rx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 290                          i,
 291                          rx_ring->next_to_use,
 292                          rx_ring->next_to_clean,
 293                          rx_ring->ring_active);
 294                 dev_info(&pf->pdev->dev,
 295                          "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
 296                          i, rx_ring->stats.packets,
 297                          rx_ring->stats.bytes,
 298                          rx_ring->rx_stats.non_eop_descs);
 299                 dev_info(&pf->pdev->dev,
 300                          "    rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
 301                          i,
 302                          rx_ring->rx_stats.alloc_page_failed,
 303                          rx_ring->rx_stats.alloc_buff_failed);
 304                 dev_info(&pf->pdev->dev,
 305                          "    rx_rings[%i]: rx_stats: realloc_count = %lld, page_reuse_count = %lld\n",
 306                          i,
 307                          rx_ring->rx_stats.realloc_count,
 308                          rx_ring->rx_stats.page_reuse_count);
 309                 dev_info(&pf->pdev->dev,
 310                          "    rx_rings[%i]: size = %i, dma = 0x%08lx\n",
 311                          i, rx_ring->size,
 312                          (unsigned long int)rx_ring->dma);
 313                 dev_info(&pf->pdev->dev,
 314                          "    rx_rings[%i]: vsi = %p, q_vector = %p\n",
 315                          i, rx_ring->vsi,
 316                          rx_ring->q_vector);
 317                 dev_info(&pf->pdev->dev,
 318                          "    rx_rings[%i]: rx_itr_setting = %d (%s)\n",
 319                          i, rx_ring->rx_itr_setting,
 320                          ITR_IS_DYNAMIC(rx_ring->rx_itr_setting) ? "dynamic" : "fixed");
 321         }
 322         for (i = 0; i < vsi->num_queue_pairs; i++) {
 323                 struct i40e_ring *tx_ring = READ_ONCE(vsi->tx_rings[i]);
 324
 325                 if (!tx_ring)
 326                         continue;
 327
 328                 dev_info(&pf->pdev->dev,
 329                          "    tx_rings[%i]: desc = %p\n",
 330                          i, tx_ring->desc);
 331                 dev_info(&pf->pdev->dev,
 332                          "    tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n",
 333                          i, tx_ring->dev,
 334                          tx_ring->netdev,
 335                          tx_ring->tx_bi);
 336                 dev_info(&pf->pdev->dev,
 337                          "    tx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 338                          i, *tx_ring->state,
 339                          tx_ring->queue_index,
 340                          tx_ring->reg_idx);
 341                 dev_info(&pf->pdev->dev,
 342                          "    tx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 343                          i,
 344                          tx_ring->next_to_use,
 345                          tx_ring->next_to_clean,
 346                          tx_ring->ring_active);
 347                 dev_info(&pf->pdev->dev,
 348                          "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 349                          i, tx_ring->stats.packets,
 350                          tx_ring->stats.bytes,
 351                          tx_ring->tx_stats.restart_queue);
 352                 dev_info(&pf->pdev->dev,
 353                          "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
 354                          i,
 355                          tx_ring->tx_stats.tx_busy,
 356                          tx_ring->tx_stats.tx_done_old);
 357                 dev_info(&pf->pdev->dev,
 358                          "    tx_rings[%i]: size = %i, dma = 0x%08lx\n",
 359                          i, tx_ring->size,
 360                          (unsigned long int)tx_ring->dma);
 361                 dev_info(&pf->pdev->dev,
 362                          "    tx_rings[%i]: vsi = %p, q_vector = %p\n",
 363                          i, tx_ring->vsi,
 364                          tx_ring->q_vector);
 365                 dev_info(&pf->pdev->dev,
 366                          "    tx_rings[%i]: DCB tc = %d\n",
 367                          i, tx_ring->dcb_tc);
 368                 dev_info(&pf->pdev->dev,
 369                          "    tx_rings[%i]: tx_itr_setting = %d (%s)\n",
 370                          i, tx_ring->tx_itr_setting,
 371                          ITR_IS_DYNAMIC(tx_ring->tx_itr_setting) ? "dynamic" : "fixed");
 372         }
 373         rcu_read_unlock();
 374         dev_info(&pf->pdev->dev,
 375                  "    work_limit = %d\n",
 376                  vsi->work_limit);
 377         dev_info(&pf->pdev->dev,
 378                  "    max_frame = %d, rx_buf_len = %d dtype = %d\n",
 379                  vsi->max_frame, vsi->rx_buf_len, 0);
 380         dev_info(&pf->pdev->dev,
 381                  "    num_q_vectors = %i, base_vector = %i\n",
 382                  vsi->num_q_vectors, vsi->base_vector);
 383         dev_info(&pf->pdev->dev,
 384                  "    seid = %d, id = %d, uplink_seid = %d\n",
 385                  vsi->seid, vsi->id, vsi->uplink_seid);
 386         dev_info(&pf->pdev->dev,
 387                  "    base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
 388                  vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
 389         dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 390         if (vsi->type == I40E_VSI_SRIOV)
 391                 dev_info(&pf->pdev->dev, "    VF ID = %i\n", vsi->vf_id);
 392         dev_info(&pf->pdev->dev,
 393                  "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 394                  vsi->info.valid_sections, vsi->info.switch_id);
 395         dev_info(&pf->pdev->dev,
 396                  "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 397                  vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 398         dev_info(&pf->pdev->dev,
 399                  "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 400                  vsi->info.sec_flags, vsi->info.sec_reserved);
 401         dev_info(&pf->pdev->dev,
 402                  "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 403                  vsi->info.pvid, vsi->info.fcoe_pvid,
 404                  vsi->info.port_vlan_flags);
 405         dev_info(&pf->pdev->dev,
 406                  "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 407                  vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 408                  vsi->info.pvlan_reserved[2]);
 409         dev_info(&pf->pdev->dev,
 410                  "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 411                  vsi->info.ingress_table, vsi->info.egress_table);
 412         dev_info(&pf->pdev->dev,
 413                  "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 414                  vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 415                  vsi->info.cas_pv_reserved);
 416         dev_info(&pf->pdev->dev,
 417                  "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 418                  vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 419                  vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 420                  vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 421                  vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 422         dev_info(&pf->pdev->dev,
 423                  "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 424                  vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 425                  vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 426                  vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 427                  vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 428         dev_info(&pf->pdev->dev,
 429                  "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 430                  vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 431                  vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 432                  vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 433                  vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 434         dev_info(&pf->pdev->dev,
 435                  "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 436                  vsi->info.queueing_opt_flags,
 437                  vsi->info.queueing_opt_reserved[0],
 438                  vsi->info.queueing_opt_reserved[1],
 439                  vsi->info.queueing_opt_reserved[2]);
 440         dev_info(&pf->pdev->dev,
 441                  "    info: up_enable_bits = 0x%02x\n",
 442                  vsi->info.up_enable_bits);
 443         dev_info(&pf->pdev->dev,
 444                  "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 445                  vsi->info.sched_reserved, vsi->info.outer_up_table);
 446         dev_info(&pf->pdev->dev,
 447                  "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 448                  vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 449                  vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 450                  vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 451                  vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 452         dev_info(&pf->pdev->dev,
 453                  "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 454                  vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 455                  vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 456                  vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 457                  vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 458         dev_info(&pf->pdev->dev,
 459                  "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 460                  vsi->info.stat_counter_idx, vsi->info.sched_id);
 461         dev_info(&pf->pdev->dev,
 462                  "    info: resp_reserved[] = 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n",
 463                  vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 464                  vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 465                  vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 466                  vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 467                  vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 468                  vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 469         if (vsi->back)
 470                 dev_info(&pf->pdev->dev, "    PF = %p\n", vsi->back);
 471         dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 472         dev_info(&pf->pdev->dev,
 473                  "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 474                  vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 475         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 476                 dev_info(&pf->pdev->dev,
 477                          "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 478                          i, vsi->tc_config.tc_info[i].qoffset,
 479                          vsi->tc_config.tc_info[i].qcount,
 480                          vsi->tc_config.tc_info[i].netdev_tc);
 481         }
 482         dev_info(&pf->pdev->dev,
 483                  "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 484                  vsi->bw_limit, vsi->bw_max_quanta);
 485         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 486                 dev_info(&pf->pdev->dev,
 487                          "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 488                          i, vsi->bw_ets_share_credits[i],
 489                          vsi->bw_ets_limit_credits[i],
 490                          vsi->bw_ets_max_quanta[i]);
 491         }
 492 }
 493
 494 /**
 495  * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 496  * @pf: the i40e_pf created in command write
 497  **/
 498 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 499 {
 500         struct i40e_adminq_ring *ring;
 501         struct i40e_hw *hw = &pf->hw;
 502         char hdr[32];
 503         int i;
 504
 505         snprintf(hdr, sizeof(hdr), "%s %s:         ",
 506                  dev_driver_string(&pf->pdev->dev),
 507                  dev_name(&pf->pdev->dev));
 508
 509         /* first the send (command) ring, then the receive (event) ring */
 510         dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 511         ring = &(hw->aq.asq);
 512         for (i = 0; i < ring->count; i++) {
 513                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 514
 515                 dev_info(&pf->pdev->dev,
 516                          "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 517                          i, d->flags, d->opcode, d->datalen, d->retval,
 518                          d->cookie_high, d->cookie_low);
 519                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 520                                16, 1, d->params.raw, 16, 0);
 521         }
 522
 523         dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 524         ring = &(hw->aq.arq);
 525         for (i = 0; i < ring->count; i++) {
 526                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 527
 528                 dev_info(&pf->pdev->dev,
 529                          "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 530                          i, d->flags, d->opcode, d->datalen, d->retval,
 531                          d->cookie_high, d->cookie_low);
 532                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 533                                16, 1, d->params.raw, 16, 0);
 534         }
 535 }
 536
 537 /**
 538  * i40e_dbg_dump_desc - handles dump desc write into command datum
 539  * @cnt: number of arguments that the user supplied
 540  * @vsi_seid: vsi id entered by user
 541  * @ring_id: ring id entered by user
 542  * @desc_n: descriptor number entered by user
 543  * @pf: the i40e_pf created in command write
 544  * @is_rx_ring: true if rx, false if tx
 545  **/
 546 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 547                                struct i40e_pf *pf, bool is_rx_ring)
 548 {
 549         struct i40e_tx_desc *txd;
 550         union i40e_rx_desc *rxd;
 551         struct i40e_ring *ring;
 552         struct i40e_vsi *vsi;
 553         int i;
 554
 555         vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 556         if (!vsi) {
 557                 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 558                 return;
 559         }
 560         if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 561                 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 562                 return;
 563         }
 564         if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
 565                 dev_info(&pf->pdev->dev,
 566                          "descriptor rings have not been allocated for vsi %d\n",
 567                          vsi_seid);
 568                 return;
 569         }
 570
 571         ring = kmemdup(is_rx_ring
 572                        ? vsi->rx_rings[ring_id] : vsi->tx_rings[ring_id],
 573                        sizeof(*ring), GFP_KERNEL);
 574         if (!ring)
 575                 return;
 576
 577         if (cnt == 2) {
 578                 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 579                          vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
 580                 for (i = 0; i < ring->count; i++) {
 581                         if (!is_rx_ring) {
 582                                 txd = I40E_TX_DESC(ring, i);
 583                                 dev_info(&pf->pdev->dev,
 584                                          "   d[%03x] = 0x%016llx 0x%016llx\n",
 585                                          i, txd->buffer_addr,
 586                                          txd->cmd_type_offset_bsz);
 587                         } else {
 588                                 rxd = I40E_RX_DESC(ring, i);
 589                                 dev_info(&pf->pdev->dev,
 590                                          "   d[%03x] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 591                                          i, rxd->read.pkt_addr,
 592                                          rxd->read.hdr_addr,
 593                                          rxd->read.rsvd1, rxd->read.rsvd2);
 594                         }
 595                 }
 596         } else if (cnt == 3) {
 597                 if (desc_n >= ring->count || desc_n < 0) {
 598                         dev_info(&pf->pdev->dev,
 599                                  "descriptor %d not found\n", desc_n);
 600                         goto out;
 601                 }
 602                 if (!is_rx_ring) {
 603                         txd = I40E_TX_DESC(ring, desc_n);
 604                         dev_info(&pf->pdev->dev,
 605                                  "vsi = %02i tx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 606                                  vsi_seid, ring_id, desc_n,
 607                                  txd->buffer_addr, txd->cmd_type_offset_bsz);
 608                 } else {
 609                         rxd = I40E_RX_DESC(ring, desc_n);
 610                         dev_info(&pf->pdev->dev,
 611                                  "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 612                                  vsi_seid, ring_id, desc_n,
 613                                  rxd->read.pkt_addr, rxd->read.hdr_addr,
 614                                  rxd->read.rsvd1, rxd->read.rsvd2);
 615                 }
 616         } else {
 617                 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
 618         }
 619
 620 out:
 621         kfree(ring);
 622 }
 623
 624 /**
 625  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 626  * @pf: the i40e_pf created in command write
 627  **/
 628 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 629 {
 630         int i;
 631
 632         for (i = 0; i < pf->num_alloc_vsi; i++)
 633                 if (pf->vsi[i])
 634                         dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 635                                  i, pf->vsi[i]->seid);
 636 }
 637
 638 /**
 639  * i40e_dbg_dump_stats - handles dump stats write into command datum
 640  * @pf: the i40e_pf created in command write
 641  * @estats: the eth stats structure to be dumped
 642  **/
 643 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 644                                     struct i40e_eth_stats *estats)
 645 {
 646         dev_info(&pf->pdev->dev, "  ethstats:\n");
 647         dev_info(&pf->pdev->dev,
 648                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 649                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 650         dev_info(&pf->pdev->dev,
 651                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
 652                  estats->rx_broadcast, estats->rx_discards);
 653         dev_info(&pf->pdev->dev,
 654                  "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 655                  estats->rx_unknown_protocol, estats->tx_bytes);
 656         dev_info(&pf->pdev->dev,
 657                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 658                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 659         dev_info(&pf->pdev->dev,
 660                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 661                  estats->tx_discards, estats->tx_errors);
 662 }
 663
 664 /**
 665  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 666  * @pf: the i40e_pf created in command write
 667  * @seid: the seid the user put in
 668  **/
 669 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 670 {
 671         struct i40e_veb *veb;
 672
 673         veb = i40e_dbg_find_veb(pf, seid);
 674         if (!veb) {
 675                 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 676                 return;
 677         }
 678         dev_info(&pf->pdev->dev,
 679                  "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d mode=%s\n",
 680                  veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 681                  veb->uplink_seid,
 682                  veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
 683         i40e_dbg_dump_eth_stats(pf, &veb->stats);
 684 }
 685
 686 /**
 687  * i40e_dbg_dump_veb_all - dumps all known veb's stats
 688  * @pf: the i40e_pf created in command write
 689  **/
 690 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 691 {
 692         struct i40e_veb *veb;
 693         int i;
 694
 695         for (i = 0; i < I40E_MAX_VEB; i++) {
 696                 veb = pf->veb[i];
 697                 if (veb)
 698                         i40e_dbg_dump_veb_seid(pf, veb->seid);
 699         }
 700 }
 701
 702 /**
 703  * i40e_dbg_dump_vf - dump VF info
 704  * @pf: the i40e_pf created in command write
 705  * @vf_id: the vf_id from the user
 706  **/
 707 static void i40e_dbg_dump_vf(struct i40e_pf *pf, int vf_id)
 708 {
 709         struct i40e_vf *vf;
 710         struct i40e_vsi *vsi;
 711
 712         if (!pf->num_alloc_vfs) {
 713                 dev_info(&pf->pdev->dev, "no VFs allocated\n");
 714         } else if ((vf_id >= 0) && (vf_id < pf->num_alloc_vfs)) {
 715                 vf = &pf->vf[vf_id];
 716                 vsi = pf->vsi[vf->lan_vsi_idx];
 717                 dev_info(&pf->pdev->dev, "vf %2d: VSI id=%d, seid=%d, qps=%d\n",
 718                          vf_id, vf->lan_vsi_id, vsi->seid, vf->num_queue_pairs);
 719                 dev_info(&pf->pdev->dev, "       num MDD=%lld, invalid msg=%lld, valid msg=%lld\n",
 720                          vf->num_mdd_events,
 721                          vf->num_invalid_msgs,
 722                          vf->num_valid_msgs);
 723         } else {
 724                 dev_info(&pf->pdev->dev, "invalid VF id %d\n", vf_id);
 725         }
 726 }
 727
 728 /**
 729  * i40e_dbg_dump_vf_all - dump VF info for all VFs
 730  * @pf: the i40e_pf created in command write
 731  **/
 732 static void i40e_dbg_dump_vf_all(struct i40e_pf *pf)
 733 {
 734         int i;
 735
 736         if (!pf->num_alloc_vfs)
 737                 dev_info(&pf->pdev->dev, "no VFs enabled!\n");
 738         else
 739                 for (i = 0; i < pf->num_alloc_vfs; i++)
 740                         i40e_dbg_dump_vf(pf, i);
 741 }
 742
 743 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
 744 /**
 745  * i40e_dbg_command_write - write into command datum
 746  * @filp: the opened file
 747  * @buffer: where to find the user's data
 748  * @count: the length of the user's data
 749  * @ppos: file position offset
 750  **/
 751 static ssize_t i40e_dbg_command_write(struct file *filp,
 752                                       const char __user *buffer,
 753                                       size_t count, loff_t *ppos)
 754 {
 755         struct i40e_pf *pf = filp->private_data;
 756         char *cmd_buf, *cmd_buf_tmp;
 757         int bytes_not_copied;
 758         struct i40e_vsi *vsi;
 759         int vsi_seid;
 760         int veb_seid;
 761         int vf_id;
 762         int cnt;
 763
 764         /* don't allow partial writes */
 765         if (*ppos != 0)
 766                 return 0;
 767
 768         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
 769         if (!cmd_buf)
 770                 return count;
 771         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
 772         if (bytes_not_copied) {
 773                 kfree(cmd_buf);
 774                 return -EFAULT;
 775         }
 776         cmd_buf[count] = '\0';
 777
 778         cmd_buf_tmp = strchr(cmd_buf, '\n');
 779         if (cmd_buf_tmp) {
 780                 *cmd_buf_tmp = '\0';
 781                 count = cmd_buf_tmp - cmd_buf + 1;
 782         }
 783
 784         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
 785                 vsi_seid = -1;
 786                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
 787                 if (cnt == 0) {
 788                         /* default to PF VSI */
 789                         vsi_seid = pf->vsi[pf->lan_vsi]->seid;
 790                 } else if (vsi_seid < 0) {
 791                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
 792                                  vsi_seid);
 793                         goto command_write_done;
 794                 }
 795
 796                 /* By default we are in VEPA mode, if this is the first VF/VMDq
 797                  * VSI to be added switch to VEB mode.
 798                  */
 799                 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
 800                         pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
 801                         i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
 802                 }
 803
 804                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
 805                 if (vsi)
 806                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
 807                                  vsi->seid, vsi->uplink_seid);
 808                 else
 809                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
 810
 811         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
 812                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
 813                 if (cnt != 1) {
 814                         dev_info(&pf->pdev->dev,
 815                                  "del vsi: bad command string, cnt=%d\n",
 816                                  cnt);
 817                         goto command_write_done;
 818                 }
 819                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 820                 if (!vsi) {
 821                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
 822                                  vsi_seid);
 823                         goto command_write_done;
 824                 }
 825
 826                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
 827                 i40e_vsi_release(vsi);
 828
 829         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
 830                 struct i40e_veb *veb;
 831                 int uplink_seid, i;
 832
 833                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
 834                 if (cnt != 2) {
 835                         dev_info(&pf->pdev->dev,
 836                                  "add relay: bad command string, cnt=%d\n",
 837                                  cnt);
 838                         goto command_write_done;
 839                 } else if (uplink_seid < 0) {
 840                         dev_info(&pf->pdev->dev,
 841                                  "add relay %d: bad uplink seid\n",
 842                                  uplink_seid);
 843                         goto command_write_done;
 844                 }
 845
 846                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 847                 if (!vsi) {
 848                         dev_info(&pf->pdev->dev,
 849                                  "add relay: VSI %d not found\n", vsi_seid);
 850                         goto command_write_done;
 851                 }
 852
 853                 for (i = 0; i < I40E_MAX_VEB; i++)
 854                         if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
 855                                 break;
 856                 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
 857                     uplink_seid != pf->mac_seid) {
 858                         dev_info(&pf->pdev->dev,
 859                                  "add relay: relay uplink %d not found\n",
 860                                  uplink_seid);
 861                         goto command_write_done;
 862                 }
 863
 864                 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
 865                                      vsi->tc_config.enabled_tc);
 866                 if (veb)
 867                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
 868                 else
 869                         dev_info(&pf->pdev->dev, "add relay failed\n");
 870
 871         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
 872                 int i;
 873                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
 874                 if (cnt != 1) {
 875                         dev_info(&pf->pdev->dev,
 876                                  "del relay: bad command string, cnt=%d\n",
 877                                  cnt);
 878                         goto command_write_done;
 879                 } else if (veb_seid < 0) {
 880                         dev_info(&pf->pdev->dev,
 881                                  "del relay %d: bad relay seid\n", veb_seid);
 882                         goto command_write_done;
 883                 }
 884
 885                 /* find the veb */
 886                 for (i = 0; i < I40E_MAX_VEB; i++)
 887                         if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
 888                                 break;
 889                 if (i >= I40E_MAX_VEB) {
 890                         dev_info(&pf->pdev->dev,
 891                                  "del relay: relay %d not found\n", veb_seid);
 892                         goto command_write_done;
 893                 }
 894
 895                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
 896                 i40e_veb_release(pf->veb[i]);
 897         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
 898                 i40e_status ret;
 899                 u16 vid;
 900                 unsigned int v;
 901
 902                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
 903                 if (cnt != 2) {
 904                         dev_info(&pf->pdev->dev,
 905                                  "add pvid: bad command string, cnt=%d\n", cnt);
 906                         goto command_write_done;
 907                 }
 908
 909                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 910                 if (!vsi) {
 911                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
 912                                  vsi_seid);
 913                         goto command_write_done;
 914                 }
 915
 916                 vid = v;
 917                 ret = i40e_vsi_add_pvid(vsi, vid);
 918                 if (!ret)
 919                         dev_info(&pf->pdev->dev,
 920                                  "add pvid: %d added to VSI %d\n",
 921                                  vid, vsi_seid);
 922                 else
 923                         dev_info(&pf->pdev->dev,
 924                                  "add pvid: %d to VSI %d failed, ret=%d\n",
 925                                  vid, vsi_seid, ret);
 926
 927         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
 928
 929                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 930                 if (cnt != 1) {
 931                         dev_info(&pf->pdev->dev,
 932                                  "del pvid: bad command string, cnt=%d\n",
 933                                  cnt);
 934                         goto command_write_done;
 935                 }
 936
 937                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 938                 if (!vsi) {
 939                         dev_info(&pf->pdev->dev,
 940                                  "del pvid: VSI %d not found\n", vsi_seid);
 941                         goto command_write_done;
 942                 }
 943
 944                 i40e_vsi_remove_pvid(vsi);
 945                 dev_info(&pf->pdev->dev,
 946                          "del pvid: removed from VSI %d\n", vsi_seid);
 947
 948         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
 949                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
 950                         i40e_fetch_switch_configuration(pf, true);
 951                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
 952                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 953                         if (cnt > 0)
 954                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
 955                         else
 956                                 i40e_dbg_dump_vsi_no_seid(pf);
 957                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
 958                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 959                         if (cnt > 0)
 960                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
 961                         else
 962                                 i40e_dbg_dump_veb_all(pf);
 963                 } else if (strncmp(&cmd_buf[5], "vf", 2) == 0) {
 964                         cnt = sscanf(&cmd_buf[7], "%i", &vf_id);
 965                         if (cnt > 0)
 966                                 i40e_dbg_dump_vf(pf, vf_id);
 967                         else
 968                                 i40e_dbg_dump_vf_all(pf);
 969                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
 970                         int ring_id, desc_n;
 971                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
 972                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
 973                                              &vsi_seid, &ring_id, &desc_n);
 974                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
 975                                                    desc_n, pf, true);
 976                         } else if (strncmp(&cmd_buf[10], "tx", 2)
 977                                         == 0) {
 978                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
 979                                              &vsi_seid, &ring_id, &desc_n);
 980                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
 981                                                    desc_n, pf, false);
 982                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
 983                                 i40e_dbg_dump_aq_desc(pf);
 984                         } else {
 985                                 dev_info(&pf->pdev->dev,
 986                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
 987                                 dev_info(&pf->pdev->dev,
 988                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
 989                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
 990                         }
 991                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
 992                         dev_info(&pf->pdev->dev,
 993                                  "core reset count: %d\n", pf->corer_count);
 994                         dev_info(&pf->pdev->dev,
 995                                  "global reset count: %d\n", pf->globr_count);
 996                         dev_info(&pf->pdev->dev,
 997                                  "emp reset count: %d\n", pf->empr_count);
 998                         dev_info(&pf->pdev->dev,
 999                                  "pf reset count: %d\n", pf->pfr_count);
1000                         dev_info(&pf->pdev->dev,
1001                                  "pf tx sluggish count: %d\n",
1002                                  pf->tx_sluggish_count);
1003                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1004                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
1005                         struct i40e_dcbx_config *cfg =
1006                                                 &pf->hw.local_dcbx_config;
1007                         struct i40e_dcbx_config *r_cfg =
1008                                                 &pf->hw.remote_dcbx_config;
1009                         int i, ret;
1010                         u16 switch_id;
1011
1012                         bw_data = kzalloc(sizeof(
1013                                     struct i40e_aqc_query_port_ets_config_resp),
1014                                           GFP_KERNEL);
1015                         if (!bw_data) {
1016                                 ret = -ENOMEM;
1017                                 goto command_write_done;
1018                         }
1019
1020                         vsi = pf->vsi[pf->lan_vsi];
1021                         switch_id =
1022                                 le16_to_cpu(vsi->info.switch_id) &
1023                                             I40E_AQ_VSI_SW_ID_MASK;
1024
1025                         ret = i40e_aq_query_port_ets_config(&pf->hw,
1026                                                             switch_id,
1027                                                             bw_data, NULL);
1028                         if (ret) {
1029                                 dev_info(&pf->pdev->dev,
1030                                          "Query Port ETS Config AQ command failed =0x%x\n",
1031                                          pf->hw.aq.asq_last_status);
1032                                 kfree(bw_data);
1033                                 bw_data = NULL;
1034                                 goto command_write_done;
1035                         }
1036                         dev_info(&pf->pdev->dev,
1037                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1038                                  bw_data->tc_valid_bits,
1039                                  bw_data->tc_strict_priority_bits,
1040                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1041                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1042                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1043                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1044                                          bw_data->tc_bw_share_credits[i],
1045                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1046                         }
1047
1048                         kfree(bw_data);
1049                         bw_data = NULL;
1050
1051                         dev_info(&pf->pdev->dev,
1052                                  "port dcbx_mode=%d\n", cfg->dcbx_mode);
1053                         dev_info(&pf->pdev->dev,
1054                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1055                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1056                                  cfg->etscfg.maxtcs);
1057                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1058                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1059                                          i, cfg->etscfg.prioritytable[i],
1060                                          cfg->etscfg.tcbwtable[i],
1061                                          cfg->etscfg.tsatable[i]);
1062                         }
1063                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1064                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1065                                          i, cfg->etsrec.prioritytable[i],
1066                                          cfg->etsrec.tcbwtable[i],
1067                                          cfg->etsrec.tsatable[i]);
1068                         }
1069                         dev_info(&pf->pdev->dev,
1070                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1071                                  cfg->pfc.willing, cfg->pfc.mbc,
1072                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1073                         dev_info(&pf->pdev->dev,
1074                                  "port app_table: num_apps=%d\n", cfg->numapps);
1075                         for (i = 0; i < cfg->numapps; i++) {
1076                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1077                                          i, cfg->app[i].priority,
1078                                          cfg->app[i].selector,
1079                                          cfg->app[i].protocolid);
1080                         }
1081                         /* Peer TLV DCBX data */
1082                         dev_info(&pf->pdev->dev,
1083                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1084                                  r_cfg->etscfg.willing,
1085                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1086                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1087                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1088                                          i, r_cfg->etscfg.prioritytable[i],
1089                                          r_cfg->etscfg.tcbwtable[i],
1090                                          r_cfg->etscfg.tsatable[i]);
1091                         }
1092                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1093                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1094                                          i, r_cfg->etsrec.prioritytable[i],
1095                                          r_cfg->etsrec.tcbwtable[i],
1096                                          r_cfg->etsrec.tsatable[i]);
1097                         }
1098                         dev_info(&pf->pdev->dev,
1099                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1100                                  r_cfg->pfc.willing,
1101                                  r_cfg->pfc.mbc,
1102                                  r_cfg->pfc.pfccap,
1103                                  r_cfg->pfc.pfcenable);
1104                         dev_info(&pf->pdev->dev,
1105                                  "remote port app_table: num_apps=%d\n",
1106                                  r_cfg->numapps);
1107                         for (i = 0; i < r_cfg->numapps; i++) {
1108                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1109                                          i, r_cfg->app[i].priority,
1110                                          r_cfg->app[i].selector,
1111                                          r_cfg->app[i].protocolid);
1112                         }
1113                 } else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
1114                         int cluster_id, table_id;
1115                         int index, ret;
1116                         u16 buff_len = 4096;
1117                         u32 next_index;
1118                         u8 next_table;
1119                         u8 *buff;
1120                         u16 rlen;
1121
1122                         cnt = sscanf(&cmd_buf[18], "%i %i %i",
1123                                      &cluster_id, &table_id, &index);
1124                         if (cnt != 3) {
1125                                 dev_info(&pf->pdev->dev,
1126                                          "dump debug fwdata <cluster_id> <table_id> <index>\n");
1127                                 goto command_write_done;
1128                         }
1129
1130                         dev_info(&pf->pdev->dev,
1131                                  "AQ debug dump fwdata params %x %x %x %x\n",
1132                                  cluster_id, table_id, index, buff_len);
1133                         buff = kzalloc(buff_len, GFP_KERNEL);
1134                         if (!buff)
1135                                 goto command_write_done;
1136
1137                         ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
1138                                                  index, buff_len, buff, &rlen,
1139                                                  &next_table, &next_index,
1140                                                  NULL);
1141                         if (ret) {
1142                                 dev_info(&pf->pdev->dev,
1143                                          "debug dump fwdata AQ Failed %d 0x%x\n",
1144                                          ret, pf->hw.aq.asq_last_status);
1145                                 kfree(buff);
1146                                 buff = NULL;
1147                                 goto command_write_done;
1148                         }
1149                         dev_info(&pf->pdev->dev,
1150                                  "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
1151                                  rlen, next_table, next_index);
1152                         print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1153                                        DUMP_PREFIX_OFFSET, 16, 1,
1154                                        buff, rlen, true);
1155                         kfree(buff);
1156                         buff = NULL;
1157                 } else {
1158                         dev_info(&pf->pdev->dev,
1159                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1160                         dev_info(&pf->pdev->dev, "dump switch\n");
1161                         dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1162                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1163                         dev_info(&pf->pdev->dev, "dump port\n");
1164                         dev_info(&pf->pdev->dev, "dump vf [vf_id]\n");
1165                         dev_info(&pf->pdev->dev,
1166                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1167                 }
1168         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1169                 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1170                 i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
1171
1172         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1173                 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1174                 i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));
1175
1176         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1177                 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1178                 i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));
1179
1180         } else if (strncmp(cmd_buf, "empr", 4) == 0) {
1181                 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
1182                 i40e_do_reset_safe(pf, BIT(__I40E_EMP_RESET_REQUESTED));
1183
1184         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1185                 u32 address;
1186                 u32 value;
1187
1188                 cnt = sscanf(&cmd_buf[4], "%i", &address);
1189                 if (cnt != 1) {
1190                         dev_info(&pf->pdev->dev, "read <reg>\n");
1191                         goto command_write_done;
1192                 }
1193
1194                 /* check the range on address */
1195                 if (address > (pf->ioremap_len - sizeof(u32))) {
1196                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large, max=0x%08lx\n",
1197                                  address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1198                         goto command_write_done;
1199                 }
1200
1201                 value = rd32(&pf->hw, address);
1202                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1203                          address, value);
1204
1205         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1206                 u32 address, value;
1207
1208                 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1209                 if (cnt != 2) {
1210                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1211                         goto command_write_done;
1212                 }
1213
1214                 /* check the range on address */
1215                 if (address > (pf->ioremap_len - sizeof(u32))) {
1216                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large, max=0x%08lx\n",
1217                                  address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1218                         goto command_write_done;
1219                 }
1220                 wr32(&pf->hw, address, value);
1221                 value = rd32(&pf->hw, address);
1222                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1223                          address, value);
1224         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1225                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1226                         cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1227                         if (cnt == 0) {
1228                                 int i;
1229
1230                                 for (i = 0; i < pf->num_alloc_vsi; i++)
1231                                         i40e_vsi_reset_stats(pf->vsi[i]);
1232                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1233                         } else if (cnt == 1) {
1234                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1235                                 if (!vsi) {
1236                                         dev_info(&pf->pdev->dev,
1237                                                  "clear_stats vsi: bad vsi %d\n",
1238                                                  vsi_seid);
1239                                         goto command_write_done;
1240                                 }
1241                                 i40e_vsi_reset_stats(vsi);
1242                                 dev_info(&pf->pdev->dev,
1243                                          "vsi clear stats called for vsi %d\n",
1244                                          vsi_seid);
1245                         } else {
1246                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1247                         }
1248                 } else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1249                         if (pf->hw.partition_id == 1) {
1250                                 i40e_pf_reset_stats(pf);
1251                                 dev_info(&pf->pdev->dev, "port stats cleared\n");
1252                         } else {
1253                                 dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1254                         }
1255                 } else {
1256                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
1257                 }
1258         } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1259                 struct i40e_aq_desc *desc;
1260                 i40e_status ret;
1261
1262                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1263                 if (!desc)
1264                         goto command_write_done;
1265                 cnt = sscanf(&cmd_buf[11],
1266                              "%hi %hi %hi %hi %i %i %i %i %i %i",
1267                              &desc->flags,
1268                              &desc->opcode, &desc->datalen, &desc->retval,
1269                              &desc->cookie_high, &desc->cookie_low,
1270                              &desc->params.internal.param0,
1271                              &desc->params.internal.param1,
1272                              &desc->params.internal.param2,
1273                              &desc->params.internal.param3);
1274                 if (cnt != 10) {
1275                         dev_info(&pf->pdev->dev,
1276                                  "send aq_cmd: bad command string, cnt=%d\n",
1277                                  cnt);
1278                         kfree(desc);
1279                         desc = NULL;
1280                         goto command_write_done;
1281                 }
1282                 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1283                 if (!ret) {
1284                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1285                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1286                         dev_info(&pf->pdev->dev,
1287                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1288                                  desc->opcode, pf->hw.aq.asq_last_status);
1289                 } else {
1290                         dev_info(&pf->pdev->dev,
1291                                  "AQ command send failed Opcode %x Status: %d\n",
1292                                  desc->opcode, ret);
1293                 }
1294                 dev_info(&pf->pdev->dev,
1295                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1296                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1297                          desc->cookie_high, desc->cookie_low,
1298                          desc->params.internal.param0,
1299                          desc->params.internal.param1,
1300                          desc->params.internal.param2,
1301                          desc->params.internal.param3);
1302                 kfree(desc);
1303                 desc = NULL;
1304         } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1305                 struct i40e_aq_desc *desc;
1306                 i40e_status ret;
1307                 u16 buffer_len;
1308                 u8 *buff;
1309
1310                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1311                 if (!desc)
1312                         goto command_write_done;
1313                 cnt = sscanf(&cmd_buf[20],
1314                              "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1315                              &desc->flags,
1316                              &desc->opcode, &desc->datalen, &desc->retval,
1317                              &desc->cookie_high, &desc->cookie_low,
1318                              &desc->params.internal.param0,
1319                              &desc->params.internal.param1,
1320                              &desc->params.internal.param2,
1321                              &desc->params.internal.param3,
1322                              &buffer_len);
1323                 if (cnt != 11) {
1324                         dev_info(&pf->pdev->dev,
1325                                  "send indirect aq_cmd: bad command string, cnt=%d\n",
1326                                  cnt);
1327                         kfree(desc);
1328                         desc = NULL;
1329                         goto command_write_done;
1330                 }
1331                 /* Just stub a buffer big enough in case user messed up */
1332                 if (buffer_len == 0)
1333                         buffer_len = 1280;
1334
1335                 buff = kzalloc(buffer_len, GFP_KERNEL);
1336                 if (!buff) {
1337                         kfree(desc);
1338                         desc = NULL;
1339                         goto command_write_done;
1340                 }
1341                 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1342                 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1343                                             buffer_len, NULL);
1344                 if (!ret) {
1345                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1346                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1347                         dev_info(&pf->pdev->dev,
1348                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1349                                  desc->opcode, pf->hw.aq.asq_last_status);
1350                 } else {
1351                         dev_info(&pf->pdev->dev,
1352                                  "AQ command send failed Opcode %x Status: %d\n",
1353                                  desc->opcode, ret);
1354                 }
1355                 dev_info(&pf->pdev->dev,
1356                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1357                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1358                          desc->cookie_high, desc->cookie_low,
1359                          desc->params.internal.param0,
1360                          desc->params.internal.param1,
1361                          desc->params.internal.param2,
1362                          desc->params.internal.param3);
1363                 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1364                                DUMP_PREFIX_OFFSET, 16, 1,
1365                                buff, buffer_len, true);
1366                 kfree(buff);
1367                 buff = NULL;
1368                 kfree(desc);
1369                 desc = NULL;
1370         } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1371                 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1372                          i40e_get_current_fd_count(pf));
1373         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1374                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1375                         int ret;
1376
1377                         ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1378                         if (ret) {
1379                                 dev_info(&pf->pdev->dev,
1380                                          "Stop LLDP AQ command failed =0x%x\n",
1381                                          pf->hw.aq.asq_last_status);
1382                                 goto command_write_done;
1383                         }
1384                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1385                                                 pf->hw.mac.addr,
1386                                                 I40E_ETH_P_LLDP, 0,
1387                                                 pf->vsi[pf->lan_vsi]->seid,
1388                                                 0, true, NULL, NULL);
1389                         if (ret) {
1390                                 dev_info(&pf->pdev->dev,
1391                                         "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1392                                         __func__, pf->hw.aq.asq_last_status);
1393                                 goto command_write_done;
1394                         }
1395 #ifdef CONFIG_I40E_DCB
1396                         pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1397                                        DCB_CAP_DCBX_VER_IEEE;
1398 #endif /* CONFIG_I40E_DCB */
1399                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1400                         int ret;
1401
1402                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1403                                                 pf->hw.mac.addr,
1404                                                 I40E_ETH_P_LLDP, 0,
1405                                                 pf->vsi[pf->lan_vsi]->seid,
1406                                                 0, false, NULL, NULL);
1407                         if (ret) {
1408                                 dev_info(&pf->pdev->dev,
1409                                         "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1410                                         __func__, pf->hw.aq.asq_last_status);
1411                                 /* Continue and start FW LLDP anyways */
1412                         }
1413
1414                         ret = i40e_aq_start_lldp(&pf->hw, NULL);
1415                         if (ret) {
1416                                 dev_info(&pf->pdev->dev,
1417                                          "Start LLDP AQ command failed =0x%x\n",
1418                                          pf->hw.aq.asq_last_status);
1419                                 goto command_write_done;
1420                         }
1421 #ifdef CONFIG_I40E_DCB
1422                         pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1423                                        DCB_CAP_DCBX_VER_IEEE;
1424 #endif /* CONFIG_I40E_DCB */
1425                 } else if (strncmp(&cmd_buf[5],
1426                            "get local", 9) == 0) {
1427                         u16 llen, rlen;
1428                         int ret;
1429                         u8 *buff;
1430
1431                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1432                         if (!buff)
1433                                 goto command_write_done;
1434
1435                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1436                                                    I40E_AQ_LLDP_MIB_LOCAL,
1437                                                    buff, I40E_LLDPDU_SIZE,
1438                                                    &llen, &rlen, NULL);
1439                         if (ret) {
1440                                 dev_info(&pf->pdev->dev,
1441                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1442                                          pf->hw.aq.asq_last_status);
1443                                 kfree(buff);
1444                                 buff = NULL;
1445                                 goto command_write_done;
1446                         }
1447                         dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1448                         print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1449                                        DUMP_PREFIX_OFFSET, 16, 1,
1450                                        buff, I40E_LLDPDU_SIZE, true);
1451                         kfree(buff);
1452                         buff = NULL;
1453                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1454                         u16 llen, rlen;
1455                         int ret;
1456                         u8 *buff;
1457
1458                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1459                         if (!buff)
1460                                 goto command_write_done;
1461
1462                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1463                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1464                                         I40E_AQ_LLDP_MIB_REMOTE,
1465                                         buff, I40E_LLDPDU_SIZE,
1466                                         &llen, &rlen, NULL);
1467                         if (ret) {
1468                                 dev_info(&pf->pdev->dev,
1469                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1470                                          pf->hw.aq.asq_last_status);
1471                                 kfree(buff);
1472                                 buff = NULL;
1473                                 goto command_write_done;
1474                         }
1475                         dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1476                         print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1477                                        DUMP_PREFIX_OFFSET, 16, 1,
1478                                        buff, I40E_LLDPDU_SIZE, true);
1479                         kfree(buff);
1480                         buff = NULL;
1481                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1482                         int ret;
1483
1484                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1485                                                                 true, NULL);
1486                         if (ret) {
1487                                 dev_info(&pf->pdev->dev,
1488                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1489                                          pf->hw.aq.asq_last_status);
1490                                 goto command_write_done;
1491                         }
1492                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1493                         int ret;
1494
1495                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1496                                                                 false, NULL);
1497                         if (ret) {
1498                                 dev_info(&pf->pdev->dev,
1499                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1500                                          pf->hw.aq.asq_last_status);
1501                                 goto command_write_done;
1502                         }
1503                 }
1504         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1505                 u16 buffer_len, bytes;
1506                 u16 module;
1507                 u32 offset;
1508                 u16 *buff;
1509                 int ret;
1510
1511                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1512                              &module, &offset, &buffer_len);
1513                 if (cnt == 0) {
1514                         module = 0;
1515                         offset = 0;
1516                         buffer_len = 0;
1517                 } else if (cnt == 1) {
1518                         offset = 0;
1519                         buffer_len = 0;
1520                 } else if (cnt == 2) {
1521                         buffer_len = 0;
1522                 } else if (cnt > 3) {
1523                         dev_info(&pf->pdev->dev,
1524                                  "nvm read: bad command string, cnt=%d\n", cnt);
1525                         goto command_write_done;
1526                 }
1527
1528                 /* set the max length */
1529                 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1530
1531                 bytes = 2 * buffer_len;
1532
1533                 /* read at least 1k bytes, no more than 4kB */
1534                 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1535                 buff = kzalloc(bytes, GFP_KERNEL);
1536                 if (!buff)
1537                         goto command_write_done;
1538
1539                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1540                 if (ret) {
1541                         dev_info(&pf->pdev->dev,
1542                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1543                                  ret, pf->hw.aq.asq_last_status);
1544                         kfree(buff);
1545                         goto command_write_done;
1546                 }
1547
1548                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1549                                        bytes, (u8 *)buff, true, NULL);
1550                 i40e_release_nvm(&pf->hw);
1551                 if (ret) {
1552                         dev_info(&pf->pdev->dev,
1553                                  "Read NVM AQ failed err=%d status=0x%x\n",
1554                                  ret, pf->hw.aq.asq_last_status);
1555                 } else {
1556                         dev_info(&pf->pdev->dev,
1557                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1558                                  module, offset, buffer_len);
1559                         if (bytes)
1560                                 print_hex_dump(KERN_INFO, "NVM Dump: ",
1561                                         DUMP_PREFIX_OFFSET, 16, 2,
1562                                         buff, bytes, true);
1563                 }
1564                 kfree(buff);
1565                 buff = NULL;
1566         } else {
1567                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1568                 dev_info(&pf->pdev->dev, "available commands\n");
1569                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1570                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1571                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1572                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1573                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1574                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1575                 dev_info(&pf->pdev->dev, "  dump switch\n");
1576                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1577                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1578                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1579                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1580                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1581                 dev_info(&pf->pdev->dev, "  dump debug fwdata <cluster_id> <table_id> <index>\n");
1582                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1583                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1584                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1585                 dev_info(&pf->pdev->dev, "  clear_stats port\n");
1586                 dev_info(&pf->pdev->dev, "  pfr\n");
1587                 dev_info(&pf->pdev->dev, "  corer\n");
1588                 dev_info(&pf->pdev->dev, "  globr\n");
1589                 dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1590                 dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1591                 dev_info(&pf->pdev->dev, "  fd current cnt");
1592                 dev_info(&pf->pdev->dev, "  lldp start\n");
1593                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1594                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1595                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1596                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1597                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1598                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1599         }
1600
1601 command_write_done:
1602         kfree(cmd_buf);
1603         cmd_buf = NULL;
1604         return count;
1605 }
1606
1607 static const struct file_operations i40e_dbg_command_fops = {
1608         .owner = THIS_MODULE,
1609         .open =  simple_open,
1610         .read =  i40e_dbg_command_read,
1611         .write = i40e_dbg_command_write,
1612 };
1613
1614 /**************************************************************
1615  * netdev_ops
1616  * The netdev_ops entry in debugfs is for giving the driver commands
1617  * to be executed from the netdev operations.
1618  **************************************************************/
1619 static char i40e_dbg_netdev_ops_buf[256] = "";
1620
1621 /**
1622  * i40e_dbg_netdev_ops - read for netdev_ops datum
1623  * @filp: the opened file
1624  * @buffer: where to write the data for the user to read
1625  * @count: the size of the user's buffer
1626  * @ppos: file position offset
1627  **/
1628 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1629                                         size_t count, loff_t *ppos)
1630 {
1631         struct i40e_pf *pf = filp->private_data;
1632         int bytes_not_copied;
1633         int buf_size = 256;
1634         char *buf;
1635         int len;
1636
1637         /* don't allow partal reads */
1638         if (*ppos != 0)
1639                 return 0;
1640         if (count < buf_size)
1641                 return -ENOSPC;
1642
1643         buf = kzalloc(buf_size, GFP_KERNEL);
1644         if (!buf)
1645                 return -ENOSPC;
1646
1647         len = snprintf(buf, buf_size, "%s: %s\n",
1648                        pf->vsi[pf->lan_vsi]->netdev->name,
1649                        i40e_dbg_netdev_ops_buf);
1650
1651         bytes_not_copied = copy_to_user(buffer, buf, len);
1652         kfree(buf);
1653
1654         if (bytes_not_copied)
1655                 return -EFAULT;
1656
1657         *ppos = len;
1658         return len;
1659 }
1660
1661 /**
1662  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1663  * @filp: the opened file
1664  * @buffer: where to find the user's data
1665  * @count: the length of the user's data
1666  * @ppos: file position offset
1667  **/
1668 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1669                                          const char __user *buffer,
1670                                          size_t count, loff_t *ppos)
1671 {
1672         struct i40e_pf *pf = filp->private_data;
1673         int bytes_not_copied;
1674         struct i40e_vsi *vsi;
1675         char *buf_tmp;
1676         int vsi_seid;
1677         int i, cnt;
1678
1679         /* don't allow partial writes */
1680         if (*ppos != 0)
1681                 return 0;
1682         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1683                 return -ENOSPC;
1684
1685         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1686         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1687                                           buffer, count);
1688         if (bytes_not_copied)
1689                 return -EFAULT;
1690         i40e_dbg_netdev_ops_buf[count] = '\0';
1691
1692         buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
1693         if (buf_tmp) {
1694                 *buf_tmp = '\0';
1695                 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
1696         }
1697
1698         if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
1699                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1700                 if (cnt != 1) {
1701                         dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
1702                         goto netdev_ops_write_done;
1703                 }
1704                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1705                 if (!vsi) {
1706                         dev_info(&pf->pdev->dev,
1707                                  "tx_timeout: VSI %d not found\n", vsi_seid);
1708                 } else if (!vsi->netdev) {
1709                         dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n",
1710                                  vsi_seid);
1711                 } else if (test_bit(__I40E_VSI_DOWN, vsi->state)) {
1712                         dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n",
1713                                  vsi_seid);
1714                 } else if (rtnl_trylock()) {
1715                         vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
1716                         rtnl_unlock();
1717                         dev_info(&pf->pdev->dev, "tx_timeout called\n");
1718                 } else {
1719                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1720                 }
1721         } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1722                 int mtu;
1723
1724                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1725                              &vsi_seid, &mtu);
1726                 if (cnt != 2) {
1727                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1728                         goto netdev_ops_write_done;
1729                 }
1730                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1731                 if (!vsi) {
1732                         dev_info(&pf->pdev->dev,
1733                                  "change_mtu: VSI %d not found\n", vsi_seid);
1734                 } else if (!vsi->netdev) {
1735                         dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
1736                                  vsi_seid);
1737                 } else if (rtnl_trylock()) {
1738                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
1739                                                                 mtu);
1740                         rtnl_unlock();
1741                         dev_info(&pf->pdev->dev, "change_mtu called\n");
1742                 } else {
1743                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1744                 }
1745
1746         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1747                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1748                 if (cnt != 1) {
1749                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1750                         goto netdev_ops_write_done;
1751                 }
1752                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1753                 if (!vsi) {
1754                         dev_info(&pf->pdev->dev,
1755                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
1756                 } else if (!vsi->netdev) {
1757                         dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
1758                                  vsi_seid);
1759                 } else if (rtnl_trylock()) {
1760                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1761                         rtnl_unlock();
1762                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1763                 } else {
1764                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1765                 }
1766
1767         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1768                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1769                 if (cnt != 1) {
1770                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1771                         goto netdev_ops_write_done;
1772                 }
1773                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1774                 if (!vsi) {
1775                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
1776                                  vsi_seid);
1777                 } else if (!vsi->netdev) {
1778                         dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
1779                                  vsi_seid);
1780                 } else {
1781                         for (i = 0; i < vsi->num_q_vectors; i++)
1782                                 napi_schedule(&vsi->q_vectors[i]->napi);
1783                         dev_info(&pf->pdev->dev, "napi called\n");
1784                 }
1785         } else {
1786                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
1787                          i40e_dbg_netdev_ops_buf);
1788                 dev_info(&pf->pdev->dev, "available commands\n");
1789                 dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
1790                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
1791                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
1792                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
1793         }
1794 netdev_ops_write_done:
1795         return count;
1796 }
1797
1798 static const struct file_operations i40e_dbg_netdev_ops_fops = {
1799         .owner = THIS_MODULE,
1800         .open = simple_open,
1801         .read = i40e_dbg_netdev_ops_read,
1802         .write = i40e_dbg_netdev_ops_write,
1803 };
1804
1805 /**
1806  * i40e_dbg_pf_init - setup the debugfs directory for the PF
1807  * @pf: the PF that is starting up
1808  **/
1809 void i40e_dbg_pf_init(struct i40e_pf *pf)
1810 {
1811         struct dentry *pfile;
1812         const char *name = pci_name(pf->pdev);
1813         const struct device *dev = &pf->pdev->dev;
1814
1815         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
1816         if (!pf->i40e_dbg_pf)
1817                 return;
1818
1819         pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
1820                                     &i40e_dbg_command_fops);
1821         if (!pfile)
1822                 goto create_failed;
1823
1824         pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
1825                                     &i40e_dbg_netdev_ops_fops);
1826         if (!pfile)
1827                 goto create_failed;
1828
1829         return;
1830
1831 create_failed:
1832         dev_info(dev, "debugfs dir/file for %s failed\n", name);
1833         debugfs_remove_recursive(pf->i40e_dbg_pf);
1834 }
1835
1836 /**
1837  * i40e_dbg_pf_exit - clear out the PF's debugfs entries
1838  * @pf: the PF that is stopping
1839  **/
1840 void i40e_dbg_pf_exit(struct i40e_pf *pf)
1841 {
1842         debugfs_remove_recursive(pf->i40e_dbg_pf);
1843         pf->i40e_dbg_pf = NULL;
1844 }
1845
1846 /**
1847  * i40e_dbg_init - start up debugfs for the driver
1848  **/
1849 void i40e_dbg_init(void)
1850 {
1851         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
1852         if (!i40e_dbg_root)
1853                 pr_info("init of debugfs failed\n");
1854 }
1855
1856 /**
1857  * i40e_dbg_exit - clean out the driver's debugfs entries
1858  **/
1859 void i40e_dbg_exit(void)
1860 {
1861         debugfs_remove_recursive(i40e_dbg_root);
1862         i40e_dbg_root = NULL;
1863 }
1864
1865 #endif /* CONFIG_DEBUG_FS */