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 <e1000-devel@lists.sourceforge.net>
  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                  "    state = %li flags = 0x%08lx, netdev_registered = %i, current_netdev_flags = 0x%04x\n",
 162                  vsi->state, vsi->flags,
 163                  vsi->netdev_registered, vsi->current_netdev_flags);
 164         if (vsi == pf->vsi[pf->lan_vsi])
 165                 dev_info(&pf->pdev->dev, "    MAC address: %pM SAN MAC: %pM Port MAC: %pM\n",
 166                          pf->hw.mac.addr,
 167                          pf->hw.mac.san_addr,
 168                          pf->hw.mac.port_addr);
 169         hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
 170                 dev_info(&pf->pdev->dev,
 171                          "    mac_filter_hash: %pM vid=%d, state %s\n",
 172                          f->macaddr, f->vlan,
 173                          i40e_filter_state_string[f->state]);
 174         }
 175         dev_info(&pf->pdev->dev, "    active_filters %u, promisc_threshold %u, overflow promisc %s\n",
 176                  vsi->active_filters, vsi->promisc_threshold,
 177                  (test_bit(__I40E_FILTER_OVERFLOW_PROMISC, &vsi->state) ?
 178                   "ON" : "OFF"));
 179         nstat = i40e_get_vsi_stats_struct(vsi);
 180         dev_info(&pf->pdev->dev,
 181                  "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 182                  (unsigned long int)nstat->rx_packets,
 183                  (unsigned long int)nstat->rx_bytes,
 184                  (unsigned long int)nstat->rx_errors,
 185                  (unsigned long int)nstat->rx_dropped);
 186         dev_info(&pf->pdev->dev,
 187                  "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 188                  (unsigned long int)nstat->tx_packets,
 189                  (unsigned long int)nstat->tx_bytes,
 190                  (unsigned long int)nstat->tx_errors,
 191                  (unsigned long int)nstat->tx_dropped);
 192         dev_info(&pf->pdev->dev,
 193                  "    net_stats: multicast = %lu, collisions = %lu\n",
 194                  (unsigned long int)nstat->multicast,
 195                  (unsigned long int)nstat->collisions);
 196         dev_info(&pf->pdev->dev,
 197                  "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 198                  (unsigned long int)nstat->rx_length_errors,
 199                  (unsigned long int)nstat->rx_over_errors,
 200                  (unsigned long int)nstat->rx_crc_errors);
 201         dev_info(&pf->pdev->dev,
 202                  "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 203                  (unsigned long int)nstat->rx_frame_errors,
 204                  (unsigned long int)nstat->rx_fifo_errors,
 205                  (unsigned long int)nstat->rx_missed_errors);
 206         dev_info(&pf->pdev->dev,
 207                  "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 208                  (unsigned long int)nstat->tx_aborted_errors,
 209                  (unsigned long int)nstat->tx_carrier_errors,
 210                  (unsigned long int)nstat->tx_fifo_errors);
 211         dev_info(&pf->pdev->dev,
 212                  "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 213                  (unsigned long int)nstat->tx_heartbeat_errors,
 214                  (unsigned long int)nstat->tx_window_errors);
 215         dev_info(&pf->pdev->dev,
 216                  "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
 217                  (unsigned long int)nstat->rx_compressed,
 218                  (unsigned long int)nstat->tx_compressed);
 219         dev_info(&pf->pdev->dev,
 220                  "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 221                  (unsigned long int)vsi->net_stats_offsets.rx_packets,
 222                  (unsigned long int)vsi->net_stats_offsets.rx_bytes,
 223                  (unsigned long int)vsi->net_stats_offsets.rx_errors,
 224                  (unsigned long int)vsi->net_stats_offsets.rx_dropped);
 225         dev_info(&pf->pdev->dev,
 226                  "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 227                  (unsigned long int)vsi->net_stats_offsets.tx_packets,
 228                  (unsigned long int)vsi->net_stats_offsets.tx_bytes,
 229                  (unsigned long int)vsi->net_stats_offsets.tx_errors,
 230                  (unsigned long int)vsi->net_stats_offsets.tx_dropped);
 231         dev_info(&pf->pdev->dev,
 232                  "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
 233                  (unsigned long int)vsi->net_stats_offsets.multicast,
 234                  (unsigned long int)vsi->net_stats_offsets.collisions);
 235         dev_info(&pf->pdev->dev,
 236                  "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 237                  (unsigned long int)vsi->net_stats_offsets.rx_length_errors,
 238                  (unsigned long int)vsi->net_stats_offsets.rx_over_errors,
 239                  (unsigned long int)vsi->net_stats_offsets.rx_crc_errors);
 240         dev_info(&pf->pdev->dev,
 241                  "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 242                  (unsigned long int)vsi->net_stats_offsets.rx_frame_errors,
 243                  (unsigned long int)vsi->net_stats_offsets.rx_fifo_errors,
 244                  (unsigned long int)vsi->net_stats_offsets.rx_missed_errors);
 245         dev_info(&pf->pdev->dev,
 246                  "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 247                  (unsigned long int)vsi->net_stats_offsets.tx_aborted_errors,
 248                  (unsigned long int)vsi->net_stats_offsets.tx_carrier_errors,
 249                  (unsigned long int)vsi->net_stats_offsets.tx_fifo_errors);
 250         dev_info(&pf->pdev->dev,
 251                  "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 252                  (unsigned long int)vsi->net_stats_offsets.tx_heartbeat_errors,
 253                  (unsigned long int)vsi->net_stats_offsets.tx_window_errors);
 254         dev_info(&pf->pdev->dev,
 255                  "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
 256                  (unsigned long int)vsi->net_stats_offsets.rx_compressed,
 257                  (unsigned long int)vsi->net_stats_offsets.tx_compressed);
 258         dev_info(&pf->pdev->dev,
 259                  "    tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n",
 260                  vsi->tx_restart, vsi->tx_busy,
 261                  vsi->rx_buf_failed, vsi->rx_page_failed);
 262         rcu_read_lock();
 263         for (i = 0; i < vsi->num_queue_pairs; i++) {
 264                 struct i40e_ring *rx_ring = ACCESS_ONCE(vsi->rx_rings[i]);
 265
 266                 if (!rx_ring)
 267                         continue;
 268
 269                 dev_info(&pf->pdev->dev,
 270                          "    rx_rings[%i]: desc = %p\n",
 271                          i, rx_ring->desc);
 272                 dev_info(&pf->pdev->dev,
 273                          "    rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n",
 274                          i, rx_ring->dev,
 275                          rx_ring->netdev,
 276                          rx_ring->rx_bi);
 277                 dev_info(&pf->pdev->dev,
 278                          "    rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 279                          i, rx_ring->state,
 280                          rx_ring->queue_index,
 281                          rx_ring->reg_idx);
 282                 dev_info(&pf->pdev->dev,
 283                          "    rx_rings[%i]: rx_buf_len = %d\n",
 284                          i, rx_ring->rx_buf_len);
 285                 dev_info(&pf->pdev->dev,
 286                          "    rx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 287                          i,
 288                          rx_ring->next_to_use,
 289                          rx_ring->next_to_clean,
 290                          rx_ring->ring_active);
 291                 dev_info(&pf->pdev->dev,
 292                          "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
 293                          i, rx_ring->stats.packets,
 294                          rx_ring->stats.bytes,
 295                          rx_ring->rx_stats.non_eop_descs);
 296                 dev_info(&pf->pdev->dev,
 297                          "    rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
 298                          i,
 299                          rx_ring->rx_stats.alloc_page_failed,
 300                          rx_ring->rx_stats.alloc_buff_failed);
 301                 dev_info(&pf->pdev->dev,
 302                          "    rx_rings[%i]: rx_stats: realloc_count = %lld, page_reuse_count = %lld\n",
 303                          i,
 304                          rx_ring->rx_stats.realloc_count,
 305                          rx_ring->rx_stats.page_reuse_count);
 306                 dev_info(&pf->pdev->dev,
 307                          "    rx_rings[%i]: size = %i, dma = 0x%08lx\n",
 308                          i, rx_ring->size,
 309                          (unsigned long int)rx_ring->dma);
 310                 dev_info(&pf->pdev->dev,
 311                          "    rx_rings[%i]: vsi = %p, q_vector = %p\n",
 312                          i, rx_ring->vsi,
 313                          rx_ring->q_vector);
 314                 dev_info(&pf->pdev->dev,
 315                          "    rx_rings[%i]: rx_itr_setting = %d (%s)\n",
 316                          i, rx_ring->rx_itr_setting,
 317                          ITR_IS_DYNAMIC(rx_ring->rx_itr_setting) ? "dynamic" : "fixed");
 318         }
 319         for (i = 0; i < vsi->num_queue_pairs; i++) {
 320                 struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
 321
 322                 if (!tx_ring)
 323                         continue;
 324
 325                 dev_info(&pf->pdev->dev,
 326                          "    tx_rings[%i]: desc = %p\n",
 327                          i, tx_ring->desc);
 328                 dev_info(&pf->pdev->dev,
 329                          "    tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n",
 330                          i, tx_ring->dev,
 331                          tx_ring->netdev,
 332                          tx_ring->tx_bi);
 333                 dev_info(&pf->pdev->dev,
 334                          "    tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 335                          i, tx_ring->state,
 336                          tx_ring->queue_index,
 337                          tx_ring->reg_idx);
 338                 dev_info(&pf->pdev->dev,
 339                          "    tx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 340                          i,
 341                          tx_ring->next_to_use,
 342                          tx_ring->next_to_clean,
 343                          tx_ring->ring_active);
 344                 dev_info(&pf->pdev->dev,
 345                          "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 346                          i, tx_ring->stats.packets,
 347                          tx_ring->stats.bytes,
 348                          tx_ring->tx_stats.restart_queue);
 349                 dev_info(&pf->pdev->dev,
 350                          "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
 351                          i,
 352                          tx_ring->tx_stats.tx_busy,
 353                          tx_ring->tx_stats.tx_done_old);
 354                 dev_info(&pf->pdev->dev,
 355                          "    tx_rings[%i]: size = %i, dma = 0x%08lx\n",
 356                          i, tx_ring->size,
 357                          (unsigned long int)tx_ring->dma);
 358                 dev_info(&pf->pdev->dev,
 359                          "    tx_rings[%i]: vsi = %p, q_vector = %p\n",
 360                          i, tx_ring->vsi,
 361                          tx_ring->q_vector);
 362                 dev_info(&pf->pdev->dev,
 363                          "    tx_rings[%i]: DCB tc = %d\n",
 364                          i, tx_ring->dcb_tc);
 365                 dev_info(&pf->pdev->dev,
 366                          "    tx_rings[%i]: tx_itr_setting = %d (%s)\n",
 367                          i, tx_ring->tx_itr_setting,
 368                          ITR_IS_DYNAMIC(tx_ring->tx_itr_setting) ? "dynamic" : "fixed");
 369         }
 370         rcu_read_unlock();
 371         dev_info(&pf->pdev->dev,
 372                  "    work_limit = %d\n",
 373                  vsi->work_limit);
 374         dev_info(&pf->pdev->dev,
 375                  "    max_frame = %d, rx_buf_len = %d dtype = %d\n",
 376                  vsi->max_frame, vsi->rx_buf_len, 0);
 377         dev_info(&pf->pdev->dev,
 378                  "    num_q_vectors = %i, base_vector = %i\n",
 379                  vsi->num_q_vectors, vsi->base_vector);
 380         dev_info(&pf->pdev->dev,
 381                  "    seid = %d, id = %d, uplink_seid = %d\n",
 382                  vsi->seid, vsi->id, vsi->uplink_seid);
 383         dev_info(&pf->pdev->dev,
 384                  "    base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
 385                  vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
 386         dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 387         dev_info(&pf->pdev->dev,
 388                  "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 389                  vsi->info.valid_sections, vsi->info.switch_id);
 390         dev_info(&pf->pdev->dev,
 391                  "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 392                  vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 393         dev_info(&pf->pdev->dev,
 394                  "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 395                  vsi->info.sec_flags, vsi->info.sec_reserved);
 396         dev_info(&pf->pdev->dev,
 397                  "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 398                  vsi->info.pvid, vsi->info.fcoe_pvid,
 399                  vsi->info.port_vlan_flags);
 400         dev_info(&pf->pdev->dev,
 401                  "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 402                  vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 403                  vsi->info.pvlan_reserved[2]);
 404         dev_info(&pf->pdev->dev,
 405                  "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 406                  vsi->info.ingress_table, vsi->info.egress_table);
 407         dev_info(&pf->pdev->dev,
 408                  "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 409                  vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 410                  vsi->info.cas_pv_reserved);
 411         dev_info(&pf->pdev->dev,
 412                  "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 413                  vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 414                  vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 415                  vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 416                  vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 417         dev_info(&pf->pdev->dev,
 418                  "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 419                  vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 420                  vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 421                  vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 422                  vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 423         dev_info(&pf->pdev->dev,
 424                  "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 425                  vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 426                  vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 427                  vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 428                  vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 429         dev_info(&pf->pdev->dev,
 430                  "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 431                  vsi->info.queueing_opt_flags,
 432                  vsi->info.queueing_opt_reserved[0],
 433                  vsi->info.queueing_opt_reserved[1],
 434                  vsi->info.queueing_opt_reserved[2]);
 435         dev_info(&pf->pdev->dev,
 436                  "    info: up_enable_bits = 0x%02x\n",
 437                  vsi->info.up_enable_bits);
 438         dev_info(&pf->pdev->dev,
 439                  "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 440                  vsi->info.sched_reserved, vsi->info.outer_up_table);
 441         dev_info(&pf->pdev->dev,
 442                  "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 443                  vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 444                  vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 445                  vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 446                  vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 447         dev_info(&pf->pdev->dev,
 448                  "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 449                  vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 450                  vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 451                  vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 452                  vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 453         dev_info(&pf->pdev->dev,
 454                  "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 455                  vsi->info.stat_counter_idx, vsi->info.sched_id);
 456         dev_info(&pf->pdev->dev,
 457                  "    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",
 458                  vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 459                  vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 460                  vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 461                  vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 462                  vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 463                  vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 464         if (vsi->back)
 465                 dev_info(&pf->pdev->dev, "    PF = %p\n", vsi->back);
 466         dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 467         dev_info(&pf->pdev->dev,
 468                  "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 469                  vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 470         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 471                 dev_info(&pf->pdev->dev,
 472                          "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 473                          i, vsi->tc_config.tc_info[i].qoffset,
 474                          vsi->tc_config.tc_info[i].qcount,
 475                          vsi->tc_config.tc_info[i].netdev_tc);
 476         }
 477         dev_info(&pf->pdev->dev,
 478                  "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 479                  vsi->bw_limit, vsi->bw_max_quanta);
 480         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 481                 dev_info(&pf->pdev->dev,
 482                          "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 483                          i, vsi->bw_ets_share_credits[i],
 484                          vsi->bw_ets_limit_credits[i],
 485                          vsi->bw_ets_max_quanta[i]);
 486         }
 487 #ifdef I40E_FCOE
 488         if (vsi->type == I40E_VSI_FCOE) {
 489                 dev_info(&pf->pdev->dev,
 490                          "    fcoe_stats: rx_packets = %llu, rx_dwords = %llu, rx_dropped = %llu\n",
 491                          vsi->fcoe_stats.rx_fcoe_packets,
 492                          vsi->fcoe_stats.rx_fcoe_dwords,
 493                          vsi->fcoe_stats.rx_fcoe_dropped);
 494                 dev_info(&pf->pdev->dev,
 495                          "    fcoe_stats: tx_packets = %llu, tx_dwords = %llu\n",
 496                          vsi->fcoe_stats.tx_fcoe_packets,
 497                          vsi->fcoe_stats.tx_fcoe_dwords);
 498                 dev_info(&pf->pdev->dev,
 499                          "    fcoe_stats: bad_crc = %llu, last_error = %llu\n",
 500                          vsi->fcoe_stats.fcoe_bad_fccrc,
 501                          vsi->fcoe_stats.fcoe_last_error);
 502                 dev_info(&pf->pdev->dev, "    fcoe_stats: ddp_count = %llu\n",
 503                          vsi->fcoe_stats.fcoe_ddp_count);
 504         }
 505 #endif
 506 }
 507
 508 /**
 509  * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 510  * @pf: the i40e_pf created in command write
 511  **/
 512 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 513 {
 514         struct i40e_adminq_ring *ring;
 515         struct i40e_hw *hw = &pf->hw;
 516         char hdr[32];
 517         int i;
 518
 519         snprintf(hdr, sizeof(hdr), "%s %s:         ",
 520                  dev_driver_string(&pf->pdev->dev),
 521                  dev_name(&pf->pdev->dev));
 522
 523         /* first the send (command) ring, then the receive (event) ring */
 524         dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 525         ring = &(hw->aq.asq);
 526         for (i = 0; i < ring->count; i++) {
 527                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 528
 529                 dev_info(&pf->pdev->dev,
 530                          "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 531                          i, d->flags, d->opcode, d->datalen, d->retval,
 532                          d->cookie_high, d->cookie_low);
 533                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 534                                16, 1, d->params.raw, 16, 0);
 535         }
 536
 537         dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 538         ring = &(hw->aq.arq);
 539         for (i = 0; i < ring->count; i++) {
 540                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 541
 542                 dev_info(&pf->pdev->dev,
 543                          "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 544                          i, d->flags, d->opcode, d->datalen, d->retval,
 545                          d->cookie_high, d->cookie_low);
 546                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 547                                16, 1, d->params.raw, 16, 0);
 548         }
 549 }
 550
 551 /**
 552  * i40e_dbg_dump_desc - handles dump desc write into command datum
 553  * @cnt: number of arguments that the user supplied
 554  * @vsi_seid: vsi id entered by user
 555  * @ring_id: ring id entered by user
 556  * @desc_n: descriptor number entered by user
 557  * @pf: the i40e_pf created in command write
 558  * @is_rx_ring: true if rx, false if tx
 559  **/
 560 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 561                                struct i40e_pf *pf, bool is_rx_ring)
 562 {
 563         struct i40e_tx_desc *txd;
 564         union i40e_rx_desc *rxd;
 565         struct i40e_ring *ring;
 566         struct i40e_vsi *vsi;
 567         int i;
 568
 569         vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 570         if (!vsi) {
 571                 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 572                 return;
 573         }
 574         if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 575                 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 576                 return;
 577         }
 578         if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
 579                 dev_info(&pf->pdev->dev,
 580                          "descriptor rings have not been allocated for vsi %d\n",
 581                          vsi_seid);
 582                 return;
 583         }
 584
 585         ring = kmemdup(is_rx_ring
 586                        ? vsi->rx_rings[ring_id] : vsi->tx_rings[ring_id],
 587                        sizeof(*ring), GFP_KERNEL);
 588         if (!ring)
 589                 return;
 590
 591         if (cnt == 2) {
 592                 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 593                          vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
 594                 for (i = 0; i < ring->count; i++) {
 595                         if (!is_rx_ring) {
 596                                 txd = I40E_TX_DESC(ring, i);
 597                                 dev_info(&pf->pdev->dev,
 598                                          "   d[%03x] = 0x%016llx 0x%016llx\n",
 599                                          i, txd->buffer_addr,
 600                                          txd->cmd_type_offset_bsz);
 601                         } else {
 602                                 rxd = I40E_RX_DESC(ring, i);
 603                                 dev_info(&pf->pdev->dev,
 604                                          "   d[%03x] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 605                                          i, rxd->read.pkt_addr,
 606                                          rxd->read.hdr_addr,
 607                                          rxd->read.rsvd1, rxd->read.rsvd2);
 608                         }
 609                 }
 610         } else if (cnt == 3) {
 611                 if (desc_n >= ring->count || desc_n < 0) {
 612                         dev_info(&pf->pdev->dev,
 613                                  "descriptor %d not found\n", desc_n);
 614                         goto out;
 615                 }
 616                 if (!is_rx_ring) {
 617                         txd = I40E_TX_DESC(ring, desc_n);
 618                         dev_info(&pf->pdev->dev,
 619                                  "vsi = %02i tx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 620                                  vsi_seid, ring_id, desc_n,
 621                                  txd->buffer_addr, txd->cmd_type_offset_bsz);
 622                 } else {
 623                         rxd = I40E_RX_DESC(ring, desc_n);
 624                         dev_info(&pf->pdev->dev,
 625                                  "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 626                                  vsi_seid, ring_id, desc_n,
 627                                  rxd->read.pkt_addr, rxd->read.hdr_addr,
 628                                  rxd->read.rsvd1, rxd->read.rsvd2);
 629                 }
 630         } else {
 631                 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
 632         }
 633
 634 out:
 635         kfree(ring);
 636 }
 637
 638 /**
 639  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 640  * @pf: the i40e_pf created in command write
 641  **/
 642 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 643 {
 644         int i;
 645
 646         for (i = 0; i < pf->num_alloc_vsi; i++)
 647                 if (pf->vsi[i])
 648                         dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 649                                  i, pf->vsi[i]->seid);
 650 }
 651
 652 /**
 653  * i40e_dbg_dump_stats - handles dump stats write into command datum
 654  * @pf: the i40e_pf created in command write
 655  * @estats: the eth stats structure to be dumped
 656  **/
 657 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 658                                     struct i40e_eth_stats *estats)
 659 {
 660         dev_info(&pf->pdev->dev, "  ethstats:\n");
 661         dev_info(&pf->pdev->dev,
 662                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 663                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 664         dev_info(&pf->pdev->dev,
 665                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
 666                  estats->rx_broadcast, estats->rx_discards);
 667         dev_info(&pf->pdev->dev,
 668                  "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 669                  estats->rx_unknown_protocol, estats->tx_bytes);
 670         dev_info(&pf->pdev->dev,
 671                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 672                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 673         dev_info(&pf->pdev->dev,
 674                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 675                  estats->tx_discards, estats->tx_errors);
 676 }
 677
 678 /**
 679  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 680  * @pf: the i40e_pf created in command write
 681  * @seid: the seid the user put in
 682  **/
 683 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 684 {
 685         struct i40e_veb *veb;
 686
 687         veb = i40e_dbg_find_veb(pf, seid);
 688         if (!veb) {
 689                 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 690                 return;
 691         }
 692         dev_info(&pf->pdev->dev,
 693                  "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d mode=%s\n",
 694                  veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 695                  veb->uplink_seid,
 696                  veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
 697         i40e_dbg_dump_eth_stats(pf, &veb->stats);
 698 }
 699
 700 /**
 701  * i40e_dbg_dump_veb_all - dumps all known veb's stats
 702  * @pf: the i40e_pf created in command write
 703  **/
 704 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 705 {
 706         struct i40e_veb *veb;
 707         int i;
 708
 709         for (i = 0; i < I40E_MAX_VEB; i++) {
 710                 veb = pf->veb[i];
 711                 if (veb)
 712                         i40e_dbg_dump_veb_seid(pf, veb->seid);
 713         }
 714 }
 715
 716 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
 717 /**
 718  * i40e_dbg_command_write - write into command datum
 719  * @filp: the opened file
 720  * @buffer: where to find the user's data
 721  * @count: the length of the user's data
 722  * @ppos: file position offset
 723  **/
 724 static ssize_t i40e_dbg_command_write(struct file *filp,
 725                                       const char __user *buffer,
 726                                       size_t count, loff_t *ppos)
 727 {
 728         struct i40e_pf *pf = filp->private_data;
 729         char *cmd_buf, *cmd_buf_tmp;
 730         int bytes_not_copied;
 731         struct i40e_vsi *vsi;
 732         int vsi_seid;
 733         int veb_seid;
 734         int cnt;
 735
 736         /* don't allow partial writes */
 737         if (*ppos != 0)
 738                 return 0;
 739
 740         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
 741         if (!cmd_buf)
 742                 return count;
 743         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
 744         if (bytes_not_copied) {
 745                 kfree(cmd_buf);
 746                 return -EFAULT;
 747         }
 748         cmd_buf[count] = '\0';
 749
 750         cmd_buf_tmp = strchr(cmd_buf, '\n');
 751         if (cmd_buf_tmp) {
 752                 *cmd_buf_tmp = '\0';
 753                 count = cmd_buf_tmp - cmd_buf + 1;
 754         }
 755
 756         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
 757                 vsi_seid = -1;
 758                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
 759                 if (cnt == 0) {
 760                         /* default to PF VSI */
 761                         vsi_seid = pf->vsi[pf->lan_vsi]->seid;
 762                 } else if (vsi_seid < 0) {
 763                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
 764                                  vsi_seid);
 765                         goto command_write_done;
 766                 }
 767
 768                 /* By default we are in VEPA mode, if this is the first VF/VMDq
 769                  * VSI to be added switch to VEB mode.
 770                  */
 771                 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
 772                         pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
 773                         i40e_do_reset_safe(pf,
 774                                            BIT_ULL(__I40E_PF_RESET_REQUESTED));
 775                 }
 776
 777                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
 778                 if (vsi)
 779                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
 780                                  vsi->seid, vsi->uplink_seid);
 781                 else
 782                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
 783
 784         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
 785                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
 786                 if (cnt != 1) {
 787                         dev_info(&pf->pdev->dev,
 788                                  "del vsi: bad command string, cnt=%d\n",
 789                                  cnt);
 790                         goto command_write_done;
 791                 }
 792                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 793                 if (!vsi) {
 794                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
 795                                  vsi_seid);
 796                         goto command_write_done;
 797                 }
 798
 799                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
 800                 i40e_vsi_release(vsi);
 801
 802         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
 803                 struct i40e_veb *veb;
 804                 int uplink_seid, i;
 805
 806                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
 807                 if (cnt != 2) {
 808                         dev_info(&pf->pdev->dev,
 809                                  "add relay: bad command string, cnt=%d\n",
 810                                  cnt);
 811                         goto command_write_done;
 812                 } else if (uplink_seid < 0) {
 813                         dev_info(&pf->pdev->dev,
 814                                  "add relay %d: bad uplink seid\n",
 815                                  uplink_seid);
 816                         goto command_write_done;
 817                 }
 818
 819                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 820                 if (!vsi) {
 821                         dev_info(&pf->pdev->dev,
 822                                  "add relay: VSI %d not found\n", vsi_seid);
 823                         goto command_write_done;
 824                 }
 825
 826                 for (i = 0; i < I40E_MAX_VEB; i++)
 827                         if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
 828                                 break;
 829                 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
 830                     uplink_seid != pf->mac_seid) {
 831                         dev_info(&pf->pdev->dev,
 832                                  "add relay: relay uplink %d not found\n",
 833                                  uplink_seid);
 834                         goto command_write_done;
 835                 }
 836
 837                 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
 838                                      vsi->tc_config.enabled_tc);
 839                 if (veb)
 840                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
 841                 else
 842                         dev_info(&pf->pdev->dev, "add relay failed\n");
 843
 844         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
 845                 int i;
 846                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
 847                 if (cnt != 1) {
 848                         dev_info(&pf->pdev->dev,
 849                                  "del relay: bad command string, cnt=%d\n",
 850                                  cnt);
 851                         goto command_write_done;
 852                 } else if (veb_seid < 0) {
 853                         dev_info(&pf->pdev->dev,
 854                                  "del relay %d: bad relay seid\n", veb_seid);
 855                         goto command_write_done;
 856                 }
 857
 858                 /* find the veb */
 859                 for (i = 0; i < I40E_MAX_VEB; i++)
 860                         if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
 861                                 break;
 862                 if (i >= I40E_MAX_VEB) {
 863                         dev_info(&pf->pdev->dev,
 864                                  "del relay: relay %d not found\n", veb_seid);
 865                         goto command_write_done;
 866                 }
 867
 868                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
 869                 i40e_veb_release(pf->veb[i]);
 870         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
 871                 i40e_status ret;
 872                 u16 vid;
 873                 unsigned int v;
 874
 875                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
 876                 if (cnt != 2) {
 877                         dev_info(&pf->pdev->dev,
 878                                  "add pvid: bad command string, cnt=%d\n", cnt);
 879                         goto command_write_done;
 880                 }
 881
 882                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 883                 if (!vsi) {
 884                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
 885                                  vsi_seid);
 886                         goto command_write_done;
 887                 }
 888
 889                 vid = v;
 890                 ret = i40e_vsi_add_pvid(vsi, vid);
 891                 if (!ret)
 892                         dev_info(&pf->pdev->dev,
 893                                  "add pvid: %d added to VSI %d\n",
 894                                  vid, vsi_seid);
 895                 else
 896                         dev_info(&pf->pdev->dev,
 897                                  "add pvid: %d to VSI %d failed, ret=%d\n",
 898                                  vid, vsi_seid, ret);
 899
 900         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
 901
 902                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 903                 if (cnt != 1) {
 904                         dev_info(&pf->pdev->dev,
 905                                  "del pvid: bad command string, cnt=%d\n",
 906                                  cnt);
 907                         goto command_write_done;
 908                 }
 909
 910                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 911                 if (!vsi) {
 912                         dev_info(&pf->pdev->dev,
 913                                  "del pvid: VSI %d not found\n", vsi_seid);
 914                         goto command_write_done;
 915                 }
 916
 917                 i40e_vsi_remove_pvid(vsi);
 918                 dev_info(&pf->pdev->dev,
 919                          "del pvid: removed from VSI %d\n", vsi_seid);
 920
 921         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
 922                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
 923                         i40e_fetch_switch_configuration(pf, true);
 924                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
 925                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 926                         if (cnt > 0)
 927                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
 928                         else
 929                                 i40e_dbg_dump_vsi_no_seid(pf);
 930                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
 931                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 932                         if (cnt > 0)
 933                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
 934                         else
 935                                 i40e_dbg_dump_veb_all(pf);
 936                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
 937                         int ring_id, desc_n;
 938                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
 939                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
 940                                              &vsi_seid, &ring_id, &desc_n);
 941                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
 942                                                    desc_n, pf, true);
 943                         } else if (strncmp(&cmd_buf[10], "tx", 2)
 944                                         == 0) {
 945                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
 946                                              &vsi_seid, &ring_id, &desc_n);
 947                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
 948                                                    desc_n, pf, false);
 949                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
 950                                 i40e_dbg_dump_aq_desc(pf);
 951                         } else {
 952                                 dev_info(&pf->pdev->dev,
 953                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
 954                                 dev_info(&pf->pdev->dev,
 955                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
 956                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
 957                         }
 958                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
 959                         dev_info(&pf->pdev->dev,
 960                                  "core reset count: %d\n", pf->corer_count);
 961                         dev_info(&pf->pdev->dev,
 962                                  "global reset count: %d\n", pf->globr_count);
 963                         dev_info(&pf->pdev->dev,
 964                                  "emp reset count: %d\n", pf->empr_count);
 965                         dev_info(&pf->pdev->dev,
 966                                  "pf reset count: %d\n", pf->pfr_count);
 967                         dev_info(&pf->pdev->dev,
 968                                  "pf tx sluggish count: %d\n",
 969                                  pf->tx_sluggish_count);
 970                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
 971                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
 972                         struct i40e_dcbx_config *cfg =
 973                                                 &pf->hw.local_dcbx_config;
 974                         struct i40e_dcbx_config *r_cfg =
 975                                                 &pf->hw.remote_dcbx_config;
 976                         int i, ret;
 977                         u16 switch_id;
 978
 979                         bw_data = kzalloc(sizeof(
 980                                     struct i40e_aqc_query_port_ets_config_resp),
 981                                           GFP_KERNEL);
 982                         if (!bw_data) {
 983                                 ret = -ENOMEM;
 984                                 goto command_write_done;
 985                         }
 986
 987                         vsi = pf->vsi[pf->lan_vsi];
 988                         switch_id =
 989                                 le16_to_cpu(vsi->info.switch_id) &
 990                                             I40E_AQ_VSI_SW_ID_MASK;
 991
 992                         ret = i40e_aq_query_port_ets_config(&pf->hw,
 993                                                             switch_id,
 994                                                             bw_data, NULL);
 995                         if (ret) {
 996                                 dev_info(&pf->pdev->dev,
 997                                          "Query Port ETS Config AQ command failed =0x%x\n",
 998                                          pf->hw.aq.asq_last_status);
 999                                 kfree(bw_data);
1000                                 bw_data = NULL;
1001                                 goto command_write_done;
1002                         }
1003                         dev_info(&pf->pdev->dev,
1004                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1005                                  bw_data->tc_valid_bits,
1006                                  bw_data->tc_strict_priority_bits,
1007                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1008                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1009                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1010                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1011                                          bw_data->tc_bw_share_credits[i],
1012                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1013                         }
1014
1015                         kfree(bw_data);
1016                         bw_data = NULL;
1017
1018                         dev_info(&pf->pdev->dev,
1019                                  "port dcbx_mode=%d\n", cfg->dcbx_mode);
1020                         dev_info(&pf->pdev->dev,
1021                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1022                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1023                                  cfg->etscfg.maxtcs);
1024                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1025                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1026                                          i, cfg->etscfg.prioritytable[i],
1027                                          cfg->etscfg.tcbwtable[i],
1028                                          cfg->etscfg.tsatable[i]);
1029                         }
1030                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1031                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1032                                          i, cfg->etsrec.prioritytable[i],
1033                                          cfg->etsrec.tcbwtable[i],
1034                                          cfg->etsrec.tsatable[i]);
1035                         }
1036                         dev_info(&pf->pdev->dev,
1037                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1038                                  cfg->pfc.willing, cfg->pfc.mbc,
1039                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1040                         dev_info(&pf->pdev->dev,
1041                                  "port app_table: num_apps=%d\n", cfg->numapps);
1042                         for (i = 0; i < cfg->numapps; i++) {
1043                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1044                                          i, cfg->app[i].priority,
1045                                          cfg->app[i].selector,
1046                                          cfg->app[i].protocolid);
1047                         }
1048                         /* Peer TLV DCBX data */
1049                         dev_info(&pf->pdev->dev,
1050                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1051                                  r_cfg->etscfg.willing,
1052                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1053                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1054                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1055                                          i, r_cfg->etscfg.prioritytable[i],
1056                                          r_cfg->etscfg.tcbwtable[i],
1057                                          r_cfg->etscfg.tsatable[i]);
1058                         }
1059                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1060                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1061                                          i, r_cfg->etsrec.prioritytable[i],
1062                                          r_cfg->etsrec.tcbwtable[i],
1063                                          r_cfg->etsrec.tsatable[i]);
1064                         }
1065                         dev_info(&pf->pdev->dev,
1066                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1067                                  r_cfg->pfc.willing,
1068                                  r_cfg->pfc.mbc,
1069                                  r_cfg->pfc.pfccap,
1070                                  r_cfg->pfc.pfcenable);
1071                         dev_info(&pf->pdev->dev,
1072                                  "remote port app_table: num_apps=%d\n",
1073                                  r_cfg->numapps);
1074                         for (i = 0; i < r_cfg->numapps; i++) {
1075                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1076                                          i, r_cfg->app[i].priority,
1077                                          r_cfg->app[i].selector,
1078                                          r_cfg->app[i].protocolid);
1079                         }
1080                 } else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
1081                         int cluster_id, table_id;
1082                         int index, ret;
1083                         u16 buff_len = 4096;
1084                         u32 next_index;
1085                         u8 next_table;
1086                         u8 *buff;
1087                         u16 rlen;
1088
1089                         cnt = sscanf(&cmd_buf[18], "%i %i %i",
1090                                      &cluster_id, &table_id, &index);
1091                         if (cnt != 3) {
1092                                 dev_info(&pf->pdev->dev,
1093                                          "dump debug fwdata <cluster_id> <table_id> <index>\n");
1094                                 goto command_write_done;
1095                         }
1096
1097                         dev_info(&pf->pdev->dev,
1098                                  "AQ debug dump fwdata params %x %x %x %x\n",
1099                                  cluster_id, table_id, index, buff_len);
1100                         buff = kzalloc(buff_len, GFP_KERNEL);
1101                         if (!buff)
1102                                 goto command_write_done;
1103
1104                         ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
1105                                                  index, buff_len, buff, &rlen,
1106                                                  &next_table, &next_index,
1107                                                  NULL);
1108                         if (ret) {
1109                                 dev_info(&pf->pdev->dev,
1110                                          "debug dump fwdata AQ Failed %d 0x%x\n",
1111                                          ret, pf->hw.aq.asq_last_status);
1112                                 kfree(buff);
1113                                 buff = NULL;
1114                                 goto command_write_done;
1115                         }
1116                         dev_info(&pf->pdev->dev,
1117                                  "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
1118                                  rlen, next_table, next_index);
1119                         print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1120                                        DUMP_PREFIX_OFFSET, 16, 1,
1121                                        buff, rlen, true);
1122                         kfree(buff);
1123                         buff = NULL;
1124                 } else {
1125                         dev_info(&pf->pdev->dev,
1126                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1127                         dev_info(&pf->pdev->dev, "dump switch\n");
1128                         dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1129                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1130                         dev_info(&pf->pdev->dev, "dump port\n");
1131                         dev_info(&pf->pdev->dev,
1132                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1133                 }
1134         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1135                 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1136                 i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
1137
1138         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1139                 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1140                 i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));
1141
1142         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1143                 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1144                 i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));
1145
1146         } else if (strncmp(cmd_buf, "empr", 4) == 0) {
1147                 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
1148                 i40e_do_reset_safe(pf, BIT(__I40E_EMP_RESET_REQUESTED));
1149
1150         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1151                 u32 address;
1152                 u32 value;
1153
1154                 cnt = sscanf(&cmd_buf[4], "%i", &address);
1155                 if (cnt != 1) {
1156                         dev_info(&pf->pdev->dev, "read <reg>\n");
1157                         goto command_write_done;
1158                 }
1159
1160                 /* check the range on address */
1161                 if (address > (pf->ioremap_len - sizeof(u32))) {
1162                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large, max=0x%08lx\n",
1163                                  address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1164                         goto command_write_done;
1165                 }
1166
1167                 value = rd32(&pf->hw, address);
1168                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1169                          address, value);
1170
1171         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1172                 u32 address, value;
1173
1174                 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1175                 if (cnt != 2) {
1176                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1177                         goto command_write_done;
1178                 }
1179
1180                 /* check the range on address */
1181                 if (address > (pf->ioremap_len - sizeof(u32))) {
1182                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large, max=0x%08lx\n",
1183                                  address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1184                         goto command_write_done;
1185                 }
1186                 wr32(&pf->hw, address, value);
1187                 value = rd32(&pf->hw, address);
1188                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1189                          address, value);
1190         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1191                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1192                         cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1193                         if (cnt == 0) {
1194                                 int i;
1195
1196                                 for (i = 0; i < pf->num_alloc_vsi; i++)
1197                                         i40e_vsi_reset_stats(pf->vsi[i]);
1198                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1199                         } else if (cnt == 1) {
1200                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1201                                 if (!vsi) {
1202                                         dev_info(&pf->pdev->dev,
1203                                                  "clear_stats vsi: bad vsi %d\n",
1204                                                  vsi_seid);
1205                                         goto command_write_done;
1206                                 }
1207                                 i40e_vsi_reset_stats(vsi);
1208                                 dev_info(&pf->pdev->dev,
1209                                          "vsi clear stats called for vsi %d\n",
1210                                          vsi_seid);
1211                         } else {
1212                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1213                         }
1214                 } else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1215                         if (pf->hw.partition_id == 1) {
1216                                 i40e_pf_reset_stats(pf);
1217                                 dev_info(&pf->pdev->dev, "port stats cleared\n");
1218                         } else {
1219                                 dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1220                         }
1221                 } else {
1222                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
1223                 }
1224         } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1225                 struct i40e_aq_desc *desc;
1226                 i40e_status ret;
1227
1228                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1229                 if (!desc)
1230                         goto command_write_done;
1231                 cnt = sscanf(&cmd_buf[11],
1232                              "%hi %hi %hi %hi %i %i %i %i %i %i",
1233                              &desc->flags,
1234                              &desc->opcode, &desc->datalen, &desc->retval,
1235                              &desc->cookie_high, &desc->cookie_low,
1236                              &desc->params.internal.param0,
1237                              &desc->params.internal.param1,
1238                              &desc->params.internal.param2,
1239                              &desc->params.internal.param3);
1240                 if (cnt != 10) {
1241                         dev_info(&pf->pdev->dev,
1242                                  "send aq_cmd: bad command string, cnt=%d\n",
1243                                  cnt);
1244                         kfree(desc);
1245                         desc = NULL;
1246                         goto command_write_done;
1247                 }
1248                 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1249                 if (!ret) {
1250                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1251                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1252                         dev_info(&pf->pdev->dev,
1253                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1254                                  desc->opcode, pf->hw.aq.asq_last_status);
1255                 } else {
1256                         dev_info(&pf->pdev->dev,
1257                                  "AQ command send failed Opcode %x Status: %d\n",
1258                                  desc->opcode, ret);
1259                 }
1260                 dev_info(&pf->pdev->dev,
1261                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1262                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1263                          desc->cookie_high, desc->cookie_low,
1264                          desc->params.internal.param0,
1265                          desc->params.internal.param1,
1266                          desc->params.internal.param2,
1267                          desc->params.internal.param3);
1268                 kfree(desc);
1269                 desc = NULL;
1270         } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1271                 struct i40e_aq_desc *desc;
1272                 i40e_status ret;
1273                 u16 buffer_len;
1274                 u8 *buff;
1275
1276                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1277                 if (!desc)
1278                         goto command_write_done;
1279                 cnt = sscanf(&cmd_buf[20],
1280                              "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1281                              &desc->flags,
1282                              &desc->opcode, &desc->datalen, &desc->retval,
1283                              &desc->cookie_high, &desc->cookie_low,
1284                              &desc->params.internal.param0,
1285                              &desc->params.internal.param1,
1286                              &desc->params.internal.param2,
1287                              &desc->params.internal.param3,
1288                              &buffer_len);
1289                 if (cnt != 11) {
1290                         dev_info(&pf->pdev->dev,
1291                                  "send indirect aq_cmd: bad command string, cnt=%d\n",
1292                                  cnt);
1293                         kfree(desc);
1294                         desc = NULL;
1295                         goto command_write_done;
1296                 }
1297                 /* Just stub a buffer big enough in case user messed up */
1298                 if (buffer_len == 0)
1299                         buffer_len = 1280;
1300
1301                 buff = kzalloc(buffer_len, GFP_KERNEL);
1302                 if (!buff) {
1303                         kfree(desc);
1304                         desc = NULL;
1305                         goto command_write_done;
1306                 }
1307                 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1308                 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1309                                             buffer_len, NULL);
1310                 if (!ret) {
1311                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1312                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1313                         dev_info(&pf->pdev->dev,
1314                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1315                                  desc->opcode, pf->hw.aq.asq_last_status);
1316                 } else {
1317                         dev_info(&pf->pdev->dev,
1318                                  "AQ command send failed Opcode %x Status: %d\n",
1319                                  desc->opcode, ret);
1320                 }
1321                 dev_info(&pf->pdev->dev,
1322                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1323                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1324                          desc->cookie_high, desc->cookie_low,
1325                          desc->params.internal.param0,
1326                          desc->params.internal.param1,
1327                          desc->params.internal.param2,
1328                          desc->params.internal.param3);
1329                 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1330                                DUMP_PREFIX_OFFSET, 16, 1,
1331                                buff, buffer_len, true);
1332                 kfree(buff);
1333                 buff = NULL;
1334                 kfree(desc);
1335                 desc = NULL;
1336         } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1337                 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1338                          i40e_get_current_fd_count(pf));
1339         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1340                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1341                         int ret;
1342
1343                         ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1344                         if (ret) {
1345                                 dev_info(&pf->pdev->dev,
1346                                          "Stop LLDP AQ command failed =0x%x\n",
1347                                          pf->hw.aq.asq_last_status);
1348                                 goto command_write_done;
1349                         }
1350                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1351                                                 pf->hw.mac.addr,
1352                                                 I40E_ETH_P_LLDP, 0,
1353                                                 pf->vsi[pf->lan_vsi]->seid,
1354                                                 0, true, NULL, NULL);
1355                         if (ret) {
1356                                 dev_info(&pf->pdev->dev,
1357                                         "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1358                                         __func__, pf->hw.aq.asq_last_status);
1359                                 goto command_write_done;
1360                         }
1361 #ifdef CONFIG_I40E_DCB
1362                         pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1363                                        DCB_CAP_DCBX_VER_IEEE;
1364 #endif /* CONFIG_I40E_DCB */
1365                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1366                         int ret;
1367
1368                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1369                                                 pf->hw.mac.addr,
1370                                                 I40E_ETH_P_LLDP, 0,
1371                                                 pf->vsi[pf->lan_vsi]->seid,
1372                                                 0, false, NULL, NULL);
1373                         if (ret) {
1374                                 dev_info(&pf->pdev->dev,
1375                                         "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1376                                         __func__, pf->hw.aq.asq_last_status);
1377                                 /* Continue and start FW LLDP anyways */
1378                         }
1379
1380                         ret = i40e_aq_start_lldp(&pf->hw, NULL);
1381                         if (ret) {
1382                                 dev_info(&pf->pdev->dev,
1383                                          "Start LLDP AQ command failed =0x%x\n",
1384                                          pf->hw.aq.asq_last_status);
1385                                 goto command_write_done;
1386                         }
1387 #ifdef CONFIG_I40E_DCB
1388                         pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1389                                        DCB_CAP_DCBX_VER_IEEE;
1390 #endif /* CONFIG_I40E_DCB */
1391                 } else if (strncmp(&cmd_buf[5],
1392                            "get local", 9) == 0) {
1393                         u16 llen, rlen;
1394                         int ret;
1395                         u8 *buff;
1396
1397                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1398                         if (!buff)
1399                                 goto command_write_done;
1400
1401                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1402                                                    I40E_AQ_LLDP_MIB_LOCAL,
1403                                                    buff, I40E_LLDPDU_SIZE,
1404                                                    &llen, &rlen, NULL);
1405                         if (ret) {
1406                                 dev_info(&pf->pdev->dev,
1407                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1408                                          pf->hw.aq.asq_last_status);
1409                                 kfree(buff);
1410                                 buff = NULL;
1411                                 goto command_write_done;
1412                         }
1413                         dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1414                         print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1415                                        DUMP_PREFIX_OFFSET, 16, 1,
1416                                        buff, I40E_LLDPDU_SIZE, true);
1417                         kfree(buff);
1418                         buff = NULL;
1419                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1420                         u16 llen, rlen;
1421                         int ret;
1422                         u8 *buff;
1423
1424                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1425                         if (!buff)
1426                                 goto command_write_done;
1427
1428                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1429                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1430                                         I40E_AQ_LLDP_MIB_REMOTE,
1431                                         buff, I40E_LLDPDU_SIZE,
1432                                         &llen, &rlen, NULL);
1433                         if (ret) {
1434                                 dev_info(&pf->pdev->dev,
1435                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1436                                          pf->hw.aq.asq_last_status);
1437                                 kfree(buff);
1438                                 buff = NULL;
1439                                 goto command_write_done;
1440                         }
1441                         dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1442                         print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1443                                        DUMP_PREFIX_OFFSET, 16, 1,
1444                                        buff, I40E_LLDPDU_SIZE, true);
1445                         kfree(buff);
1446                         buff = NULL;
1447                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1448                         int ret;
1449
1450                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1451                                                                 true, NULL);
1452                         if (ret) {
1453                                 dev_info(&pf->pdev->dev,
1454                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1455                                          pf->hw.aq.asq_last_status);
1456                                 goto command_write_done;
1457                         }
1458                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1459                         int ret;
1460
1461                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1462                                                                 false, NULL);
1463                         if (ret) {
1464                                 dev_info(&pf->pdev->dev,
1465                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1466                                          pf->hw.aq.asq_last_status);
1467                                 goto command_write_done;
1468                         }
1469                 }
1470         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1471                 u16 buffer_len, bytes;
1472                 u16 module;
1473                 u32 offset;
1474                 u16 *buff;
1475                 int ret;
1476
1477                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1478                              &module, &offset, &buffer_len);
1479                 if (cnt == 0) {
1480                         module = 0;
1481                         offset = 0;
1482                         buffer_len = 0;
1483                 } else if (cnt == 1) {
1484                         offset = 0;
1485                         buffer_len = 0;
1486                 } else if (cnt == 2) {
1487                         buffer_len = 0;
1488                 } else if (cnt > 3) {
1489                         dev_info(&pf->pdev->dev,
1490                                  "nvm read: bad command string, cnt=%d\n", cnt);
1491                         goto command_write_done;
1492                 }
1493
1494                 /* set the max length */
1495                 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1496
1497                 bytes = 2 * buffer_len;
1498
1499                 /* read at least 1k bytes, no more than 4kB */
1500                 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1501                 buff = kzalloc(bytes, GFP_KERNEL);
1502                 if (!buff)
1503                         goto command_write_done;
1504
1505                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1506                 if (ret) {
1507                         dev_info(&pf->pdev->dev,
1508                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1509                                  ret, pf->hw.aq.asq_last_status);
1510                         kfree(buff);
1511                         goto command_write_done;
1512                 }
1513
1514                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1515                                        bytes, (u8 *)buff, true, NULL);
1516                 i40e_release_nvm(&pf->hw);
1517                 if (ret) {
1518                         dev_info(&pf->pdev->dev,
1519                                  "Read NVM AQ failed err=%d status=0x%x\n",
1520                                  ret, pf->hw.aq.asq_last_status);
1521                 } else {
1522                         dev_info(&pf->pdev->dev,
1523                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1524                                  module, offset, buffer_len);
1525                         if (bytes)
1526                                 print_hex_dump(KERN_INFO, "NVM Dump: ",
1527                                         DUMP_PREFIX_OFFSET, 16, 2,
1528                                         buff, bytes, true);
1529                 }
1530                 kfree(buff);
1531                 buff = NULL;
1532         } else {
1533                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1534                 dev_info(&pf->pdev->dev, "available commands\n");
1535                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1536                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1537                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1538                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1539                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1540                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1541                 dev_info(&pf->pdev->dev, "  dump switch\n");
1542                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1543                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1544                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1545                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1546                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1547                 dev_info(&pf->pdev->dev, "  dump debug fwdata <cluster_id> <table_id> <index>\n");
1548                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1549                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1550                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1551                 dev_info(&pf->pdev->dev, "  clear_stats port\n");
1552                 dev_info(&pf->pdev->dev, "  pfr\n");
1553                 dev_info(&pf->pdev->dev, "  corer\n");
1554                 dev_info(&pf->pdev->dev, "  globr\n");
1555                 dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1556                 dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1557                 dev_info(&pf->pdev->dev, "  fd current cnt");
1558                 dev_info(&pf->pdev->dev, "  lldp start\n");
1559                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1560                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1561                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1562                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1563                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1564                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1565         }
1566
1567 command_write_done:
1568         kfree(cmd_buf);
1569         cmd_buf = NULL;
1570         return count;
1571 }
1572
1573 static const struct file_operations i40e_dbg_command_fops = {
1574         .owner = THIS_MODULE,
1575         .open =  simple_open,
1576         .read =  i40e_dbg_command_read,
1577         .write = i40e_dbg_command_write,
1578 };
1579
1580 /**************************************************************
1581  * netdev_ops
1582  * The netdev_ops entry in debugfs is for giving the driver commands
1583  * to be executed from the netdev operations.
1584  **************************************************************/
1585 static char i40e_dbg_netdev_ops_buf[256] = "";
1586
1587 /**
1588  * i40e_dbg_netdev_ops - read for netdev_ops datum
1589  * @filp: the opened file
1590  * @buffer: where to write the data for the user to read
1591  * @count: the size of the user's buffer
1592  * @ppos: file position offset
1593  **/
1594 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1595                                         size_t count, loff_t *ppos)
1596 {
1597         struct i40e_pf *pf = filp->private_data;
1598         int bytes_not_copied;
1599         int buf_size = 256;
1600         char *buf;
1601         int len;
1602
1603         /* don't allow partal reads */
1604         if (*ppos != 0)
1605                 return 0;
1606         if (count < buf_size)
1607                 return -ENOSPC;
1608
1609         buf = kzalloc(buf_size, GFP_KERNEL);
1610         if (!buf)
1611                 return -ENOSPC;
1612
1613         len = snprintf(buf, buf_size, "%s: %s\n",
1614                        pf->vsi[pf->lan_vsi]->netdev->name,
1615                        i40e_dbg_netdev_ops_buf);
1616
1617         bytes_not_copied = copy_to_user(buffer, buf, len);
1618         kfree(buf);
1619
1620         if (bytes_not_copied)
1621                 return -EFAULT;
1622
1623         *ppos = len;
1624         return len;
1625 }
1626
1627 /**
1628  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1629  * @filp: the opened file
1630  * @buffer: where to find the user's data
1631  * @count: the length of the user's data
1632  * @ppos: file position offset
1633  **/
1634 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1635                                          const char __user *buffer,
1636                                          size_t count, loff_t *ppos)
1637 {
1638         struct i40e_pf *pf = filp->private_data;
1639         int bytes_not_copied;
1640         struct i40e_vsi *vsi;
1641         char *buf_tmp;
1642         int vsi_seid;
1643         int i, cnt;
1644
1645         /* don't allow partial writes */
1646         if (*ppos != 0)
1647                 return 0;
1648         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1649                 return -ENOSPC;
1650
1651         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1652         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1653                                           buffer, count);
1654         if (bytes_not_copied)
1655                 return -EFAULT;
1656         i40e_dbg_netdev_ops_buf[count] = '\0';
1657
1658         buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
1659         if (buf_tmp) {
1660                 *buf_tmp = '\0';
1661                 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
1662         }
1663
1664         if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
1665                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1666                 if (cnt != 1) {
1667                         dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
1668                         goto netdev_ops_write_done;
1669                 }
1670                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1671                 if (!vsi) {
1672                         dev_info(&pf->pdev->dev,
1673                                  "tx_timeout: VSI %d not found\n", vsi_seid);
1674                 } else if (!vsi->netdev) {
1675                         dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n",
1676                                  vsi_seid);
1677                 } else if (test_bit(__I40E_DOWN, &vsi->state)) {
1678                         dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n",
1679                                  vsi_seid);
1680                 } else if (rtnl_trylock()) {
1681                         vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
1682                         rtnl_unlock();
1683                         dev_info(&pf->pdev->dev, "tx_timeout called\n");
1684                 } else {
1685                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1686                 }
1687         } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1688                 int mtu;
1689
1690                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1691                              &vsi_seid, &mtu);
1692                 if (cnt != 2) {
1693                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1694                         goto netdev_ops_write_done;
1695                 }
1696                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1697                 if (!vsi) {
1698                         dev_info(&pf->pdev->dev,
1699                                  "change_mtu: VSI %d not found\n", vsi_seid);
1700                 } else if (!vsi->netdev) {
1701                         dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
1702                                  vsi_seid);
1703                 } else if (rtnl_trylock()) {
1704                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
1705                                                                 mtu);
1706                         rtnl_unlock();
1707                         dev_info(&pf->pdev->dev, "change_mtu called\n");
1708                 } else {
1709                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1710                 }
1711
1712         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1713                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1714                 if (cnt != 1) {
1715                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1716                         goto netdev_ops_write_done;
1717                 }
1718                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1719                 if (!vsi) {
1720                         dev_info(&pf->pdev->dev,
1721                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
1722                 } else if (!vsi->netdev) {
1723                         dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
1724                                  vsi_seid);
1725                 } else if (rtnl_trylock()) {
1726                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1727                         rtnl_unlock();
1728                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1729                 } else {
1730                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1731                 }
1732
1733         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1734                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1735                 if (cnt != 1) {
1736                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1737                         goto netdev_ops_write_done;
1738                 }
1739                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1740                 if (!vsi) {
1741                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
1742                                  vsi_seid);
1743                 } else if (!vsi->netdev) {
1744                         dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
1745                                  vsi_seid);
1746                 } else {
1747                         for (i = 0; i < vsi->num_q_vectors; i++)
1748                                 napi_schedule(&vsi->q_vectors[i]->napi);
1749                         dev_info(&pf->pdev->dev, "napi called\n");
1750                 }
1751         } else {
1752                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
1753                          i40e_dbg_netdev_ops_buf);
1754                 dev_info(&pf->pdev->dev, "available commands\n");
1755                 dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
1756                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
1757                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
1758                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
1759         }
1760 netdev_ops_write_done:
1761         return count;
1762 }
1763
1764 static const struct file_operations i40e_dbg_netdev_ops_fops = {
1765         .owner = THIS_MODULE,
1766         .open = simple_open,
1767         .read = i40e_dbg_netdev_ops_read,
1768         .write = i40e_dbg_netdev_ops_write,
1769 };
1770
1771 /**
1772  * i40e_dbg_pf_init - setup the debugfs directory for the PF
1773  * @pf: the PF that is starting up
1774  **/
1775 void i40e_dbg_pf_init(struct i40e_pf *pf)
1776 {
1777         struct dentry *pfile;
1778         const char *name = pci_name(pf->pdev);
1779         const struct device *dev = &pf->pdev->dev;
1780
1781         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
1782         if (!pf->i40e_dbg_pf)
1783                 return;
1784
1785         pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
1786                                     &i40e_dbg_command_fops);
1787         if (!pfile)
1788                 goto create_failed;
1789
1790         pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
1791                                     &i40e_dbg_netdev_ops_fops);
1792         if (!pfile)
1793                 goto create_failed;
1794
1795         return;
1796
1797 create_failed:
1798         dev_info(dev, "debugfs dir/file for %s failed\n", name);
1799         debugfs_remove_recursive(pf->i40e_dbg_pf);
1800 }
1801
1802 /**
1803  * i40e_dbg_pf_exit - clear out the PF's debugfs entries
1804  * @pf: the PF that is stopping
1805  **/
1806 void i40e_dbg_pf_exit(struct i40e_pf *pf)
1807 {
1808         debugfs_remove_recursive(pf->i40e_dbg_pf);
1809         pf->i40e_dbg_pf = NULL;
1810 }
1811
1812 /**
1813  * i40e_dbg_init - start up debugfs for the driver
1814  **/
1815 void i40e_dbg_init(void)
1816 {
1817         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
1818         if (!i40e_dbg_root)
1819                 pr_info("init of debugfs failed\n");
1820 }
1821
1822 /**
1823  * i40e_dbg_exit - clean out the driver's debugfs entries
1824  **/
1825 void i40e_dbg_exit(void)
1826 {
1827         debugfs_remove_recursive(i40e_dbg_root);
1828         i40e_dbg_root = NULL;
1829 }
1830
1831 #endif /* CONFIG_DEBUG_FS */