Pileus Git - ~andy/linux/blob - drivers/net/ethernet/intel/i40e/i40e_debugfs.c

   1 /*******************************************************************************
   2  *
   3  * Intel Ethernet Controller XL710 Family Linux Driver
   4  * Copyright(c) 2013 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 with
  16  * this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * The full GNU General Public License is included in this distribution in
  20  * the file called "COPYING".
  21  *
  22  * Contact Information:
  23  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  24  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  25  *
  26  ******************************************************************************/
  27
  28 #ifdef CONFIG_DEBUG_FS
  29
  30 #include <linux/fs.h>
  31 #include <linux/debugfs.h>
  32
  33 #include "i40e.h"
  34
  35 static struct dentry *i40e_dbg_root;
  36
  37 /**
  38  * i40e_dbg_find_vsi - searches for the vsi with the given seid
  39  * @pf - the pf structure to search for the vsi
  40  * @seid - seid of the vsi it is searching for
  41  **/
  42 static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
  43 {
  44         int i;
  45
  46         if (seid < 0)
  47                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
  48         else
  49                 for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
  50                         if (pf->vsi[i] && (pf->vsi[i]->seid == seid))
  51                                 return pf->vsi[i];
  52
  53         return NULL;
  54 }
  55
  56 /**
  57  * i40e_dbg_find_veb - searches for the veb with the given seid
  58  * @pf - the pf structure to search for the veb
  59  * @seid - seid of the veb it is searching for
  60  **/
  61 static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
  62 {
  63         int i;
  64
  65         if ((seid < I40E_BASE_VEB_SEID) ||
  66             (seid > (I40E_BASE_VEB_SEID + I40E_MAX_VEB)))
  67                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
  68         else
  69                 for (i = 0; i < I40E_MAX_VEB; i++)
  70                         if (pf->veb[i] && pf->veb[i]->seid == seid)
  71                                 return pf->veb[i];
  72         return NULL;
  73 }
  74
  75 /**************************************************************
  76  * dump
  77  * The dump entry in debugfs is for getting a data snapshow of
  78  * the driver's current configuration and runtime details.
  79  * When the filesystem entry is written, a snapshot is taken.
  80  * When the entry is read, the most recent snapshot data is dumped.
  81  **************************************************************/
  82 static char *i40e_dbg_dump_buf;
  83 static ssize_t i40e_dbg_dump_data_len;
  84 static ssize_t i40e_dbg_dump_buffer_len;
  85
  86 /**
  87  * i40e_dbg_dump_read - read the dump data
  88  * @filp: the opened file
  89  * @buffer: where to write the data for the user to read
  90  * @count: the size of the user's buffer
  91  * @ppos: file position offset
  92  **/
  93 static ssize_t i40e_dbg_dump_read(struct file *filp, char __user *buffer,
  94                                   size_t count, loff_t *ppos)
  95 {
  96         int bytes_not_copied;
  97         int len;
  98
  99         /* is *ppos bigger than the available data? */
 100         if (*ppos >= i40e_dbg_dump_data_len || !i40e_dbg_dump_buf)
 101                 return 0;
 102
 103         /* be sure to not read beyond the end of available data */
 104         len = min_t(int, count, (i40e_dbg_dump_data_len - *ppos));
 105
 106         bytes_not_copied = copy_to_user(buffer, &i40e_dbg_dump_buf[*ppos], len);
 107         if (bytes_not_copied < 0)
 108                 return bytes_not_copied;
 109
 110         *ppos += len;
 111         return len;
 112 }
 113
 114 /**
 115  * i40e_dbg_prep_dump_buf
 116  * @pf: the pf we're working with
 117  * @buflen: the desired buffer length
 118  *
 119  * Return positive if success, 0 if failed
 120  **/
 121 static int i40e_dbg_prep_dump_buf(struct i40e_pf *pf, int buflen)
 122 {
 123         /* if not already big enough, prep for re alloc */
 124         if (i40e_dbg_dump_buffer_len && i40e_dbg_dump_buffer_len < buflen) {
 125                 kfree(i40e_dbg_dump_buf);
 126                 i40e_dbg_dump_buffer_len = 0;
 127                 i40e_dbg_dump_buf = NULL;
 128         }
 129
 130         /* get a new buffer if needed */
 131         if (!i40e_dbg_dump_buf) {
 132                 i40e_dbg_dump_buf = kzalloc(buflen, GFP_KERNEL);
 133                 if (i40e_dbg_dump_buf != NULL)
 134                         i40e_dbg_dump_buffer_len = buflen;
 135         }
 136
 137         return i40e_dbg_dump_buffer_len;
 138 }
 139
 140 /**
 141  * i40e_dbg_dump_write - trigger a datadump snapshot
 142  * @filp: the opened file
 143  * @buffer: where to find the user's data
 144  * @count: the length of the user's data
 145  * @ppos: file position offset
 146  *
 147  * Any write clears the stats
 148  **/
 149 static ssize_t i40e_dbg_dump_write(struct file *filp,
 150                                    const char __user *buffer,
 151                                    size_t count, loff_t *ppos)
 152 {
 153         struct i40e_pf *pf = filp->private_data;
 154         bool seid_found = false;
 155         long seid = -1;
 156         int buflen = 0;
 157         int i, ret;
 158         int len;
 159         u8 *p;
 160
 161         /* don't allow partial writes */
 162         if (*ppos != 0)
 163                 return 0;
 164
 165         /* decode the SEID given to be dumped */
 166         ret = kstrtol_from_user(buffer, count, 0, &seid);
 167
 168         if (ret) {
 169                 dev_info(&pf->pdev->dev, "bad seid value\n");
 170         } else if (seid == 0) {
 171                 seid_found = true;
 172
 173                 kfree(i40e_dbg_dump_buf);
 174                 i40e_dbg_dump_buffer_len = 0;
 175                 i40e_dbg_dump_data_len = 0;
 176                 i40e_dbg_dump_buf = NULL;
 177                 dev_info(&pf->pdev->dev, "debug buffer freed\n");
 178
 179         } else if (seid == pf->pf_seid || seid == 1) {
 180                 seid_found = true;
 181
 182                 buflen = sizeof(struct i40e_pf);
 183                 buflen += (sizeof(struct i40e_aq_desc)
 184                      * (pf->hw.aq.num_arq_entries + pf->hw.aq.num_asq_entries));
 185
 186                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 187                         p = i40e_dbg_dump_buf;
 188
 189                         len = sizeof(struct i40e_pf);
 190                         memcpy(p, pf, len);
 191                         p += len;
 192
 193                         len = (sizeof(struct i40e_aq_desc)
 194                                         * pf->hw.aq.num_asq_entries);
 195                         memcpy(p, pf->hw.aq.asq.desc_buf.va, len);
 196                         p += len;
 197
 198                         len = (sizeof(struct i40e_aq_desc)
 199                                         * pf->hw.aq.num_arq_entries);
 200                         memcpy(p, pf->hw.aq.arq.desc_buf.va, len);
 201                         p += len;
 202
 203                         i40e_dbg_dump_data_len = buflen;
 204                         dev_info(&pf->pdev->dev,
 205                                  "PF seid %ld dumped %d bytes\n",
 206                                  seid, (int)i40e_dbg_dump_data_len);
 207                 }
 208         } else if (seid >= I40E_BASE_VSI_SEID) {
 209                 struct i40e_vsi *vsi = NULL;
 210                 struct i40e_mac_filter *f;
 211                 int filter_count = 0;
 212
 213                 mutex_lock(&pf->switch_mutex);
 214                 vsi = i40e_dbg_find_vsi(pf, seid);
 215                 if (!vsi) {
 216                         mutex_unlock(&pf->switch_mutex);
 217                         goto write_exit;
 218                 }
 219
 220                 buflen = sizeof(struct i40e_vsi);
 221                 buflen += sizeof(struct i40e_q_vector) * vsi->num_q_vectors;
 222                 buflen += sizeof(struct i40e_ring) * 2 * vsi->num_queue_pairs;
 223                 buflen += sizeof(struct i40e_tx_buffer) * vsi->num_queue_pairs;
 224                 buflen += sizeof(struct i40e_rx_buffer) * vsi->num_queue_pairs;
 225                 list_for_each_entry(f, &vsi->mac_filter_list, list)
 226                         filter_count++;
 227                 buflen += sizeof(struct i40e_mac_filter) * filter_count;
 228
 229                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 230                         p = i40e_dbg_dump_buf;
 231                         seid_found = true;
 232
 233                         len = sizeof(struct i40e_vsi);
 234                         memcpy(p, vsi, len);
 235                         p += len;
 236
 237                         if (vsi->num_q_vectors) {
 238                                 len = (sizeof(struct i40e_q_vector)
 239                                         * vsi->num_q_vectors);
 240                                 memcpy(p, vsi->q_vectors, len);
 241                                 p += len;
 242                         }
 243
 244                         if (vsi->num_queue_pairs) {
 245                                 len = (sizeof(struct i40e_ring) *
 246                                       vsi->num_queue_pairs);
 247                                 memcpy(p, vsi->tx_rings, len);
 248                                 p += len;
 249                                 memcpy(p, vsi->rx_rings, len);
 250                                 p += len;
 251                         }
 252
 253                         if (vsi->tx_rings[0]) {
 254                                 len = sizeof(struct i40e_tx_buffer);
 255                                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 256                                         memcpy(p, vsi->tx_rings[i]->tx_bi, len);
 257                                         p += len;
 258                                 }
 259                                 len = sizeof(struct i40e_rx_buffer);
 260                                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 261                                         memcpy(p, vsi->rx_rings[i]->rx_bi, len);
 262                                         p += len;
 263                                 }
 264                         }
 265
 266                         /* macvlan filter list */
 267                         len = sizeof(struct i40e_mac_filter);
 268                         list_for_each_entry(f, &vsi->mac_filter_list, list) {
 269                                 memcpy(p, f, len);
 270                                 p += len;
 271                         }
 272
 273                         i40e_dbg_dump_data_len = buflen;
 274                         dev_info(&pf->pdev->dev,
 275                                  "VSI seid %ld dumped %d bytes\n",
 276                                  seid, (int)i40e_dbg_dump_data_len);
 277                 }
 278                 mutex_unlock(&pf->switch_mutex);
 279         } else if (seid >= I40E_BASE_VEB_SEID) {
 280                 struct i40e_veb *veb = NULL;
 281
 282                 mutex_lock(&pf->switch_mutex);
 283                 veb = i40e_dbg_find_veb(pf, seid);
 284                 if (!veb) {
 285                         mutex_unlock(&pf->switch_mutex);
 286                         goto write_exit;
 287                 }
 288
 289                 buflen = sizeof(struct i40e_veb);
 290                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 291                         seid_found = true;
 292                         memcpy(i40e_dbg_dump_buf, veb, buflen);
 293                         i40e_dbg_dump_data_len = buflen;
 294                         dev_info(&pf->pdev->dev,
 295                                  "VEB seid %ld dumped %d bytes\n",
 296                                  seid, (int)i40e_dbg_dump_data_len);
 297                 }
 298                 mutex_unlock(&pf->switch_mutex);
 299         }
 300
 301 write_exit:
 302         if (!seid_found)
 303                 dev_info(&pf->pdev->dev, "unknown seid %ld\n", seid);
 304
 305         return count;
 306 }
 307
 308 static const struct file_operations i40e_dbg_dump_fops = {
 309         .owner = THIS_MODULE,
 310         .open =  simple_open,
 311         .read =  i40e_dbg_dump_read,
 312         .write = i40e_dbg_dump_write,
 313 };
 314
 315 /**************************************************************
 316  * command
 317  * The command entry in debugfs is for giving the driver commands
 318  * to be executed - these may be for changing the internal switch
 319  * setup, adding or removing filters, or other things.  Many of
 320  * these will be useful for some forms of unit testing.
 321  **************************************************************/
 322 static char i40e_dbg_command_buf[256] = "hello world";
 323
 324 /**
 325  * i40e_dbg_command_read - read for command datum
 326  * @filp: the opened file
 327  * @buffer: where to write the data for the user to read
 328  * @count: the size of the user's buffer
 329  * @ppos: file position offset
 330  **/
 331 static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
 332                                      size_t count, loff_t *ppos)
 333 {
 334         struct i40e_pf *pf = filp->private_data;
 335         int bytes_not_copied;
 336         int buf_size = 256;
 337         char *buf;
 338         int len;
 339
 340         /* don't allow partial reads */
 341         if (*ppos != 0)
 342                 return 0;
 343         if (count < buf_size)
 344                 return -ENOSPC;
 345
 346         buf = kzalloc(buf_size, GFP_KERNEL);
 347         if (!buf)
 348                 return -ENOSPC;
 349
 350         len = snprintf(buf, buf_size, "%s: %s\n",
 351                        pf->vsi[pf->lan_vsi]->netdev->name,
 352                        i40e_dbg_command_buf);
 353
 354         bytes_not_copied = copy_to_user(buffer, buf, len);
 355         kfree(buf);
 356
 357         if (bytes_not_copied < 0)
 358                 return bytes_not_copied;
 359
 360         *ppos = len;
 361         return len;
 362 }
 363
 364 /**
 365  * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
 366  * @pf: the i40e_pf created in command write
 367  * @seid: the seid the user put in
 368  **/
 369 static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 370 {
 371         struct rtnl_link_stats64 *nstat;
 372         struct i40e_mac_filter *f;
 373         struct i40e_vsi *vsi;
 374         int i;
 375
 376         vsi = i40e_dbg_find_vsi(pf, seid);
 377         if (!vsi) {
 378                 dev_info(&pf->pdev->dev,
 379                          "dump %d: seid not found\n", seid);
 380                 return;
 381         }
 382         dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
 383         if (vsi->netdev)
 384                 dev_info(&pf->pdev->dev,
 385                          "    netdev: name = %s\n",
 386                          vsi->netdev->name);
 387         if (vsi->active_vlans)
 388                 dev_info(&pf->pdev->dev,
 389                          "    vlgrp: & = %p\n", vsi->active_vlans);
 390         dev_info(&pf->pdev->dev,
 391                  "    netdev_registered = %i, current_netdev_flags = 0x%04x, state = %li flags = 0x%08lx\n",
 392                  vsi->netdev_registered,
 393                  vsi->current_netdev_flags, vsi->state, vsi->flags);
 394         list_for_each_entry(f, &vsi->mac_filter_list, list) {
 395                 dev_info(&pf->pdev->dev,
 396                          "    mac_filter_list: %pM vid=%d, is_netdev=%d is_vf=%d counter=%d\n",
 397                          f->macaddr, f->vlan, f->is_netdev, f->is_vf,
 398                          f->counter);
 399         }
 400         nstat = i40e_get_vsi_stats_struct(vsi);
 401         dev_info(&pf->pdev->dev,
 402                  "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 403                  (long unsigned int)nstat->rx_packets,
 404                  (long unsigned int)nstat->rx_bytes,
 405                  (long unsigned int)nstat->rx_errors,
 406                  (long unsigned int)nstat->rx_dropped);
 407         dev_info(&pf->pdev->dev,
 408                  "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 409                  (long unsigned int)nstat->tx_packets,
 410                  (long unsigned int)nstat->tx_bytes,
 411                  (long unsigned int)nstat->tx_errors,
 412                  (long unsigned int)nstat->tx_dropped);
 413         dev_info(&pf->pdev->dev,
 414                  "    net_stats: multicast = %lu, collisions = %lu\n",
 415                  (long unsigned int)nstat->multicast,
 416                  (long unsigned int)nstat->collisions);
 417         dev_info(&pf->pdev->dev,
 418                  "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 419                  (long unsigned int)nstat->rx_length_errors,
 420                  (long unsigned int)nstat->rx_over_errors,
 421                  (long unsigned int)nstat->rx_crc_errors);
 422         dev_info(&pf->pdev->dev,
 423                  "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 424                  (long unsigned int)nstat->rx_frame_errors,
 425                  (long unsigned int)nstat->rx_fifo_errors,
 426                  (long unsigned int)nstat->rx_missed_errors);
 427         dev_info(&pf->pdev->dev,
 428                  "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 429                  (long unsigned int)nstat->tx_aborted_errors,
 430                  (long unsigned int)nstat->tx_carrier_errors,
 431                  (long unsigned int)nstat->tx_fifo_errors);
 432         dev_info(&pf->pdev->dev,
 433                  "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 434                  (long unsigned int)nstat->tx_heartbeat_errors,
 435                  (long unsigned int)nstat->tx_window_errors);
 436         dev_info(&pf->pdev->dev,
 437                  "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
 438                  (long unsigned int)nstat->rx_compressed,
 439                  (long unsigned int)nstat->tx_compressed);
 440         dev_info(&pf->pdev->dev,
 441                  "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 442                  (long unsigned int)vsi->net_stats_offsets.rx_packets,
 443                  (long unsigned int)vsi->net_stats_offsets.rx_bytes,
 444                  (long unsigned int)vsi->net_stats_offsets.rx_errors,
 445                  (long unsigned int)vsi->net_stats_offsets.rx_dropped);
 446         dev_info(&pf->pdev->dev,
 447                  "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 448                  (long unsigned int)vsi->net_stats_offsets.tx_packets,
 449                  (long unsigned int)vsi->net_stats_offsets.tx_bytes,
 450                  (long unsigned int)vsi->net_stats_offsets.tx_errors,
 451                  (long unsigned int)vsi->net_stats_offsets.tx_dropped);
 452         dev_info(&pf->pdev->dev,
 453                  "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
 454                  (long unsigned int)vsi->net_stats_offsets.multicast,
 455                  (long unsigned int)vsi->net_stats_offsets.collisions);
 456         dev_info(&pf->pdev->dev,
 457                  "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 458                  (long unsigned int)vsi->net_stats_offsets.rx_length_errors,
 459                  (long unsigned int)vsi->net_stats_offsets.rx_over_errors,
 460                  (long unsigned int)vsi->net_stats_offsets.rx_crc_errors);
 461         dev_info(&pf->pdev->dev,
 462                  "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 463                  (long unsigned int)vsi->net_stats_offsets.rx_frame_errors,
 464                  (long unsigned int)vsi->net_stats_offsets.rx_fifo_errors,
 465                  (long unsigned int)vsi->net_stats_offsets.rx_missed_errors);
 466         dev_info(&pf->pdev->dev,
 467                  "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 468                  (long unsigned int)vsi->net_stats_offsets.tx_aborted_errors,
 469                  (long unsigned int)vsi->net_stats_offsets.tx_carrier_errors,
 470                  (long unsigned int)vsi->net_stats_offsets.tx_fifo_errors);
 471         dev_info(&pf->pdev->dev,
 472                  "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 473                  (long unsigned int)vsi->net_stats_offsets.tx_heartbeat_errors,
 474                  (long unsigned int)vsi->net_stats_offsets.tx_window_errors);
 475         dev_info(&pf->pdev->dev,
 476                  "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
 477                  (long unsigned int)vsi->net_stats_offsets.rx_compressed,
 478                  (long unsigned int)vsi->net_stats_offsets.tx_compressed);
 479         dev_info(&pf->pdev->dev,
 480                  "    tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n",
 481                  vsi->tx_restart, vsi->tx_busy,
 482                  vsi->rx_buf_failed, vsi->rx_page_failed);
 483         rcu_read_lock();
 484         for (i = 0; i < vsi->num_queue_pairs; i++) {
 485                 struct i40e_ring *rx_ring = ACCESS_ONCE(vsi->rx_rings[i]);
 486                 if (!rx_ring)
 487                         continue;
 488
 489                 dev_info(&pf->pdev->dev,
 490                          "    rx_rings[%i]: desc = %p\n",
 491                          i, rx_ring->desc);
 492                 dev_info(&pf->pdev->dev,
 493                          "    rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n",
 494                          i, rx_ring->dev,
 495                          rx_ring->netdev,
 496                          rx_ring->rx_bi);
 497                 dev_info(&pf->pdev->dev,
 498                          "    rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 499                          i, rx_ring->state,
 500                          rx_ring->queue_index,
 501                          rx_ring->reg_idx);
 502                 dev_info(&pf->pdev->dev,
 503                          "    rx_rings[%i]: rx_hdr_len = %d, rx_buf_len = %d, dtype = %d\n",
 504                          i, rx_ring->rx_hdr_len,
 505                          rx_ring->rx_buf_len,
 506                          rx_ring->dtype);
 507                 dev_info(&pf->pdev->dev,
 508                          "    rx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 509                          i, rx_ring->hsplit,
 510                          rx_ring->next_to_use,
 511                          rx_ring->next_to_clean,
 512                          rx_ring->ring_active);
 513                 dev_info(&pf->pdev->dev,
 514                          "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
 515                          i, rx_ring->stats.packets,
 516                          rx_ring->stats.bytes,
 517                          rx_ring->rx_stats.non_eop_descs);
 518                 dev_info(&pf->pdev->dev,
 519                          "    rx_rings[%i]: rx_stats: alloc_rx_page_failed = %lld, alloc_rx_buff_failed = %lld\n",
 520                          i,
 521                          rx_ring->rx_stats.alloc_rx_page_failed,
 522                         rx_ring->rx_stats.alloc_rx_buff_failed);
 523                 dev_info(&pf->pdev->dev,
 524                          "    rx_rings[%i]: size = %i, dma = 0x%08lx\n",
 525                          i, rx_ring->size,
 526                          (long unsigned int)rx_ring->dma);
 527                 dev_info(&pf->pdev->dev,
 528                          "    rx_rings[%i]: vsi = %p, q_vector = %p\n",
 529                          i, rx_ring->vsi,
 530                          rx_ring->q_vector);
 531         }
 532         for (i = 0; i < vsi->num_queue_pairs; i++) {
 533                 struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
 534                 if (!tx_ring)
 535                         continue;
 536                 dev_info(&pf->pdev->dev,
 537                          "    tx_rings[%i]: desc = %p\n",
 538                          i, tx_ring->desc);
 539                 dev_info(&pf->pdev->dev,
 540                          "    tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n",
 541                          i, tx_ring->dev,
 542                          tx_ring->netdev,
 543                          tx_ring->tx_bi);
 544                 dev_info(&pf->pdev->dev,
 545                          "    tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 546                          i, tx_ring->state,
 547                          tx_ring->queue_index,
 548                          tx_ring->reg_idx);
 549                 dev_info(&pf->pdev->dev,
 550                          "    tx_rings[%i]: dtype = %d\n",
 551                          i, tx_ring->dtype);
 552                 dev_info(&pf->pdev->dev,
 553                          "    tx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 554                          i, tx_ring->hsplit,
 555                          tx_ring->next_to_use,
 556                          tx_ring->next_to_clean,
 557                          tx_ring->ring_active);
 558                 dev_info(&pf->pdev->dev,
 559                          "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 560                          i, tx_ring->stats.packets,
 561                          tx_ring->stats.bytes,
 562                          tx_ring->tx_stats.restart_queue);
 563                 dev_info(&pf->pdev->dev,
 564                          "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
 565                          i,
 566                          tx_ring->tx_stats.tx_busy,
 567                          tx_ring->tx_stats.tx_done_old);
 568                 dev_info(&pf->pdev->dev,
 569                          "    tx_rings[%i]: size = %i, dma = 0x%08lx\n",
 570                          i, tx_ring->size,
 571                          (long unsigned int)tx_ring->dma);
 572                 dev_info(&pf->pdev->dev,
 573                          "    tx_rings[%i]: vsi = %p, q_vector = %p\n",
 574                          i, tx_ring->vsi,
 575                          tx_ring->q_vector);
 576                 dev_info(&pf->pdev->dev,
 577                          "    tx_rings[%i]: DCB tc = %d\n",
 578                          i, tx_ring->dcb_tc);
 579         }
 580         rcu_read_unlock();
 581         dev_info(&pf->pdev->dev,
 582                  "    work_limit = %d, rx_itr_setting = %d (%s), tx_itr_setting = %d (%s)\n",
 583                  vsi->work_limit, vsi->rx_itr_setting,
 584                  ITR_IS_DYNAMIC(vsi->rx_itr_setting) ? "dynamic" : "fixed",
 585                  vsi->tx_itr_setting,
 586                  ITR_IS_DYNAMIC(vsi->tx_itr_setting) ? "dynamic" : "fixed");
 587         dev_info(&pf->pdev->dev,
 588                  "    max_frame = %d, rx_hdr_len = %d, rx_buf_len = %d dtype = %d\n",
 589                  vsi->max_frame, vsi->rx_hdr_len, vsi->rx_buf_len, vsi->dtype);
 590         dev_info(&pf->pdev->dev,
 591                  "    num_q_vectors = %i, base_vector = %i\n",
 592                  vsi->num_q_vectors, vsi->base_vector);
 593         dev_info(&pf->pdev->dev,
 594                  "    seid = %d, id = %d, uplink_seid = %d\n",
 595                  vsi->seid, vsi->id, vsi->uplink_seid);
 596         dev_info(&pf->pdev->dev,
 597                  "    base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
 598                  vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
 599         dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 600         dev_info(&pf->pdev->dev,
 601                  "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 602                  vsi->info.valid_sections, vsi->info.switch_id);
 603         dev_info(&pf->pdev->dev,
 604                  "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 605                  vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 606         dev_info(&pf->pdev->dev,
 607                  "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 608                  vsi->info.sec_flags, vsi->info.sec_reserved);
 609         dev_info(&pf->pdev->dev,
 610                  "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 611                  vsi->info.pvid, vsi->info.fcoe_pvid,
 612                  vsi->info.port_vlan_flags);
 613         dev_info(&pf->pdev->dev,
 614                  "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 615                  vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 616                  vsi->info.pvlan_reserved[2]);
 617         dev_info(&pf->pdev->dev,
 618                  "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 619                  vsi->info.ingress_table, vsi->info.egress_table);
 620         dev_info(&pf->pdev->dev,
 621                  "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 622                  vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 623                  vsi->info.cas_pv_reserved);
 624         dev_info(&pf->pdev->dev,
 625                  "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 626                  vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 627                  vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 628                  vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 629                  vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 630         dev_info(&pf->pdev->dev,
 631                  "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 632                  vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 633                  vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 634                  vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 635                  vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 636         dev_info(&pf->pdev->dev,
 637                  "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 638                  vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 639                  vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 640                  vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 641                  vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 642         dev_info(&pf->pdev->dev,
 643                  "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 644                  vsi->info.queueing_opt_flags,
 645                  vsi->info.queueing_opt_reserved[0],
 646                  vsi->info.queueing_opt_reserved[1],
 647                  vsi->info.queueing_opt_reserved[2]);
 648         dev_info(&pf->pdev->dev,
 649                  "    info: up_enable_bits = 0x%02x\n",
 650                  vsi->info.up_enable_bits);
 651         dev_info(&pf->pdev->dev,
 652                  "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 653                  vsi->info.sched_reserved, vsi->info.outer_up_table);
 654         dev_info(&pf->pdev->dev,
 655                  "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 656                  vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 657                  vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 658                  vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 659                  vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 660         dev_info(&pf->pdev->dev,
 661                  "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 662                  vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 663                  vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 664                  vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 665                  vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 666         dev_info(&pf->pdev->dev,
 667                  "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 668                  vsi->info.stat_counter_idx, vsi->info.sched_id);
 669         dev_info(&pf->pdev->dev,
 670                  "    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",
 671                  vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 672                  vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 673                  vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 674                  vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 675                  vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 676                  vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 677         if (vsi->back)
 678                 dev_info(&pf->pdev->dev, "    pf = %p\n", vsi->back);
 679         dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 680         dev_info(&pf->pdev->dev,
 681                  "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 682                  vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 683         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 684                 dev_info(&pf->pdev->dev,
 685                          "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 686                          i, vsi->tc_config.tc_info[i].qoffset,
 687                          vsi->tc_config.tc_info[i].qcount,
 688                          vsi->tc_config.tc_info[i].netdev_tc);
 689         }
 690         dev_info(&pf->pdev->dev,
 691                  "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 692                  vsi->bw_limit, vsi->bw_max_quanta);
 693         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 694                 dev_info(&pf->pdev->dev,
 695                          "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 696                          i, vsi->bw_ets_share_credits[i],
 697                          vsi->bw_ets_limit_credits[i],
 698                          vsi->bw_ets_max_quanta[i]);
 699         }
 700 }
 701
 702 /**
 703  * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 704  * @pf: the i40e_pf created in command write
 705  **/
 706 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 707 {
 708         struct i40e_adminq_ring *ring;
 709         struct i40e_hw *hw = &pf->hw;
 710         char hdr[32];
 711         int i;
 712
 713         snprintf(hdr, sizeof(hdr), "%s %s:         ",
 714                  dev_driver_string(&pf->pdev->dev),
 715                  dev_name(&pf->pdev->dev));
 716
 717         /* first the send (command) ring, then the receive (event) ring */
 718         dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 719         ring = &(hw->aq.asq);
 720         for (i = 0; i < ring->count; i++) {
 721                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 722                 dev_info(&pf->pdev->dev,
 723                          "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 724                          i, d->flags, d->opcode, d->datalen, d->retval,
 725                          d->cookie_high, d->cookie_low);
 726                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 727                                16, 1, d->params.raw, 16, 0);
 728         }
 729
 730         dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 731         ring = &(hw->aq.arq);
 732         for (i = 0; i < ring->count; i++) {
 733                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 734                 dev_info(&pf->pdev->dev,
 735                          "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 736                          i, d->flags, d->opcode, d->datalen, d->retval,
 737                          d->cookie_high, d->cookie_low);
 738                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 739                                16, 1, d->params.raw, 16, 0);
 740         }
 741 }
 742
 743 /**
 744  * i40e_dbg_dump_desc - handles dump desc write into command datum
 745  * @cnt: number of arguments that the user supplied
 746  * @vsi_seid: vsi id entered by user
 747  * @ring_id: ring id entered by user
 748  * @desc_n: descriptor number entered by user
 749  * @pf: the i40e_pf created in command write
 750  * @is_rx_ring: true if rx, false if tx
 751  **/
 752 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 753                                struct i40e_pf *pf, bool is_rx_ring)
 754 {
 755         union i40e_rx_desc *ds;
 756         struct i40e_ring ring;
 757         struct i40e_vsi *vsi;
 758         int i;
 759
 760         vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 761         if (!vsi) {
 762                 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 763                 return;
 764         }
 765         if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 766                 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 767                 return;
 768         }
 769         if (!vsi->tx_rings) {
 770                 dev_info(&pf->pdev->dev,
 771                          "descriptor rings have not been allocated for vsi %d\n",
 772                          vsi_seid);
 773                 return;
 774         }
 775         if (is_rx_ring)
 776                 ring = *vsi->rx_rings[ring_id];
 777         else
 778                 ring = *vsi->tx_rings[ring_id];
 779         if (cnt == 2) {
 780                 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 781                          vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
 782                 for (i = 0; i < ring.count; i++) {
 783                         if (is_rx_ring)
 784                                 ds = I40E_RX_DESC(&ring, i);
 785                         else
 786                                 ds = (union i40e_rx_desc *)
 787                                         I40E_TX_DESC(&ring, i);
 788                         if ((sizeof(union i40e_rx_desc) ==
 789                             sizeof(union i40e_16byte_rx_desc)) || (!is_rx_ring))
 790                                 dev_info(&pf->pdev->dev,
 791                                          "   d[%03i] = 0x%016llx 0x%016llx\n", i,
 792                                          ds->read.pkt_addr, ds->read.hdr_addr);
 793                         else
 794                                 dev_info(&pf->pdev->dev,
 795                                          "   d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 796                                          i, ds->read.pkt_addr,
 797                                          ds->read.hdr_addr,
 798                                          ds->read.rsvd1, ds->read.rsvd2);
 799                 }
 800         } else if (cnt == 3) {
 801                 if (desc_n >= ring.count || desc_n < 0) {
 802                         dev_info(&pf->pdev->dev,
 803                                  "descriptor %d not found\n", desc_n);
 804                         return;
 805                 }
 806                 if (is_rx_ring)
 807                         ds = I40E_RX_DESC(&ring, desc_n);
 808                 else
 809                         ds = (union i40e_rx_desc *)I40E_TX_DESC(&ring, desc_n);
 810                 if ((sizeof(union i40e_rx_desc) ==
 811                     sizeof(union i40e_16byte_rx_desc)) || (!is_rx_ring))
 812                         dev_info(&pf->pdev->dev,
 813                                  "vsi = %02i %s ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
 814                                  vsi_seid, is_rx_ring ? "rx" : "tx", ring_id,
 815                                  desc_n, ds->read.pkt_addr, ds->read.hdr_addr);
 816                 else
 817                         dev_info(&pf->pdev->dev,
 818                                  "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 819                                  vsi_seid, ring_id,
 820                                  desc_n, ds->read.pkt_addr, ds->read.hdr_addr,
 821                                  ds->read.rsvd1, ds->read.rsvd2);
 822         } else {
 823                 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
 824         }
 825 }
 826
 827 /**
 828  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 829  * @pf: the i40e_pf created in command write
 830  **/
 831 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 832 {
 833         int i;
 834
 835         for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
 836                 if (pf->vsi[i])
 837                         dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 838                                  i, pf->vsi[i]->seid);
 839 }
 840
 841 /**
 842  * i40e_dbg_dump_stats - handles dump stats write into command datum
 843  * @pf: the i40e_pf created in command write
 844  * @estats: the eth stats structure to be dumped
 845  **/
 846 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 847                                     struct i40e_eth_stats *estats)
 848 {
 849         dev_info(&pf->pdev->dev, "  ethstats:\n");
 850         dev_info(&pf->pdev->dev,
 851                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 852                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 853         dev_info(&pf->pdev->dev,
 854                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld \trx_errors = \t%lld\n",
 855                  estats->rx_broadcast, estats->rx_discards, estats->rx_errors);
 856         dev_info(&pf->pdev->dev,
 857                  "    rx_missed = \t%lld \trx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 858                  estats->rx_missed, estats->rx_unknown_protocol,
 859                  estats->tx_bytes);
 860         dev_info(&pf->pdev->dev,
 861                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 862                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 863         dev_info(&pf->pdev->dev,
 864                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 865                  estats->tx_discards, estats->tx_errors);
 866 }
 867
 868 /**
 869  * i40e_dbg_dump_stats - handles dump stats write into command datum
 870  * @pf: the i40e_pf created in command write
 871  * @stats: the stats structure to be dumped
 872  **/
 873 static void i40e_dbg_dump_stats(struct i40e_pf *pf,
 874                                 struct i40e_hw_port_stats *stats)
 875 {
 876         int i;
 877
 878         dev_info(&pf->pdev->dev, "  stats:\n");
 879         dev_info(&pf->pdev->dev,
 880                  "    crc_errors = \t\t%lld \tillegal_bytes = \t%lld \terror_bytes = \t\t%lld\n",
 881                  stats->crc_errors, stats->illegal_bytes, stats->error_bytes);
 882         dev_info(&pf->pdev->dev,
 883                  "    mac_local_faults = \t%lld \tmac_remote_faults = \t%lld \trx_length_errors = \t%lld\n",
 884                  stats->mac_local_faults, stats->mac_remote_faults,
 885                  stats->rx_length_errors);
 886         dev_info(&pf->pdev->dev,
 887                  "    link_xon_rx = \t\t%lld \tlink_xoff_rx = \t\t%lld \tlink_xon_tx = \t\t%lld\n",
 888                  stats->link_xon_rx, stats->link_xoff_rx, stats->link_xon_tx);
 889         dev_info(&pf->pdev->dev,
 890                  "    link_xoff_tx = \t\t%lld \trx_size_64 = \t\t%lld \trx_size_127 = \t\t%lld\n",
 891                  stats->link_xoff_tx, stats->rx_size_64, stats->rx_size_127);
 892         dev_info(&pf->pdev->dev,
 893                  "    rx_size_255 = \t\t%lld \trx_size_511 = \t\t%lld \trx_size_1023 = \t\t%lld\n",
 894                  stats->rx_size_255, stats->rx_size_511, stats->rx_size_1023);
 895         dev_info(&pf->pdev->dev,
 896                  "    rx_size_big = \t\t%lld \trx_undersize = \t\t%lld \trx_jabber = \t\t%lld\n",
 897                  stats->rx_size_big, stats->rx_undersize, stats->rx_jabber);
 898         dev_info(&pf->pdev->dev,
 899                  "    rx_fragments = \t\t%lld \trx_oversize = \t\t%lld \ttx_size_64 = \t\t%lld\n",
 900                  stats->rx_fragments, stats->rx_oversize, stats->tx_size_64);
 901         dev_info(&pf->pdev->dev,
 902                  "    tx_size_127 = \t\t%lld \ttx_size_255 = \t\t%lld \ttx_size_511 = \t\t%lld\n",
 903                  stats->tx_size_127, stats->tx_size_255, stats->tx_size_511);
 904         dev_info(&pf->pdev->dev,
 905                  "    tx_size_1023 = \t\t%lld \ttx_size_big = \t\t%lld \tmac_short_packet_dropped = \t%lld\n",
 906                  stats->tx_size_1023, stats->tx_size_big,
 907                  stats->mac_short_packet_dropped);
 908         for (i = 0; i < 8; i += 4) {
 909                 dev_info(&pf->pdev->dev,
 910                          "    priority_xon_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 911                          i, stats->priority_xon_rx[i],
 912                          i+1, stats->priority_xon_rx[i+1],
 913                          i+2, stats->priority_xon_rx[i+2],
 914                          i+3, stats->priority_xon_rx[i+3]);
 915         }
 916         for (i = 0; i < 8; i += 4) {
 917                 dev_info(&pf->pdev->dev,
 918                          "    priority_xoff_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 919                          i, stats->priority_xoff_rx[i],
 920                          i+1, stats->priority_xoff_rx[i+1],
 921                          i+2, stats->priority_xoff_rx[i+2],
 922                          i+3, stats->priority_xoff_rx[i+3]);
 923         }
 924         for (i = 0; i < 8; i += 4) {
 925                 dev_info(&pf->pdev->dev,
 926                          "    priority_xon_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 927                          i, stats->priority_xon_tx[i],
 928                          i+1, stats->priority_xon_tx[i+1],
 929                          i+2, stats->priority_xon_tx[i+2],
 930                          i+3, stats->priority_xon_rx[i+3]);
 931         }
 932         for (i = 0; i < 8; i += 4) {
 933                 dev_info(&pf->pdev->dev,
 934                          "    priority_xoff_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 935                          i, stats->priority_xoff_tx[i],
 936                          i+1, stats->priority_xoff_tx[i+1],
 937                          i+2, stats->priority_xoff_tx[i+2],
 938                          i+3, stats->priority_xoff_tx[i+3]);
 939         }
 940         for (i = 0; i < 8; i += 4) {
 941                 dev_info(&pf->pdev->dev,
 942                          "    priority_xon_2_xoff[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 943                          i, stats->priority_xon_2_xoff[i],
 944                          i+1, stats->priority_xon_2_xoff[i+1],
 945                          i+2, stats->priority_xon_2_xoff[i+2],
 946                          i+3, stats->priority_xon_2_xoff[i+3]);
 947         }
 948
 949         i40e_dbg_dump_eth_stats(pf, &stats->eth);
 950 }
 951
 952 /**
 953  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 954  * @pf: the i40e_pf created in command write
 955  * @seid: the seid the user put in
 956  **/
 957 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 958 {
 959         struct i40e_veb *veb;
 960
 961         if ((seid < I40E_BASE_VEB_SEID) ||
 962             (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
 963                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
 964                 return;
 965         }
 966
 967         veb = i40e_dbg_find_veb(pf, seid);
 968         if (!veb) {
 969                 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 970                 return;
 971         }
 972         dev_info(&pf->pdev->dev,
 973                  "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d\n",
 974                  veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 975                  veb->uplink_seid);
 976         i40e_dbg_dump_eth_stats(pf, &veb->stats);
 977 }
 978
 979 /**
 980  * i40e_dbg_dump_veb_all - dumps all known veb's stats
 981  * @pf: the i40e_pf created in command write
 982  **/
 983 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 984 {
 985         struct i40e_veb *veb;
 986         int i;
 987
 988         for (i = 0; i < I40E_MAX_VEB; i++) {
 989                 veb = pf->veb[i];
 990                 if (veb)
 991                         i40e_dbg_dump_veb_seid(pf, veb->seid);
 992         }
 993 }
 994
 995 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
 996 /**
 997  * i40e_dbg_command_write - write into command datum
 998  * @filp: the opened file
 999  * @buffer: where to find the user's data
1000  * @count: the length of the user's data
1001  * @ppos: file position offset
1002  **/
1003 static ssize_t i40e_dbg_command_write(struct file *filp,
1004                                       const char __user *buffer,
1005                                       size_t count, loff_t *ppos)
1006 {
1007         struct i40e_pf *pf = filp->private_data;
1008         char *cmd_buf, *cmd_buf_tmp;
1009         int bytes_not_copied;
1010         struct i40e_vsi *vsi;
1011         int vsi_seid;
1012         int veb_seid;
1013         int cnt;
1014
1015         /* don't allow partial writes */
1016         if (*ppos != 0)
1017                 return 0;
1018
1019         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
1020         if (!cmd_buf)
1021                 return count;
1022         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
1023         if (bytes_not_copied < 0)
1024                 return bytes_not_copied;
1025         if (bytes_not_copied > 0)
1026                 count -= bytes_not_copied;
1027         cmd_buf[count] = '\0';
1028
1029         cmd_buf_tmp = strchr(cmd_buf, '\n');
1030         if (cmd_buf_tmp) {
1031                 *cmd_buf_tmp = '\0';
1032                 count = cmd_buf_tmp - cmd_buf + 1;
1033         }
1034
1035         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
1036                 vsi_seid = -1;
1037                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1038                 if (cnt == 0) {
1039                         /* default to PF VSI */
1040                         vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1041                 } else if (vsi_seid < 0) {
1042                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1043                                  vsi_seid);
1044                         goto command_write_done;
1045                 }
1046
1047                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1048                 if (vsi)
1049                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1050                                  vsi->seid, vsi->uplink_seid);
1051                 else
1052                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1053
1054         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1055                 sscanf(&cmd_buf[7], "%i", &vsi_seid);
1056                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1057                 if (!vsi) {
1058                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1059                                  vsi_seid);
1060                         goto command_write_done;
1061                 }
1062
1063                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1064                 i40e_vsi_release(vsi);
1065
1066         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1067                 struct i40e_veb *veb;
1068                 int uplink_seid, i;
1069
1070                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1071                 if (cnt != 2) {
1072                         dev_info(&pf->pdev->dev,
1073                                  "add relay: bad command string, cnt=%d\n",
1074                                  cnt);
1075                         goto command_write_done;
1076                 } else if (uplink_seid < 0) {
1077                         dev_info(&pf->pdev->dev,
1078                                  "add relay %d: bad uplink seid\n",
1079                                  uplink_seid);
1080                         goto command_write_done;
1081                 }
1082
1083                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1084                 if (!vsi) {
1085                         dev_info(&pf->pdev->dev,
1086                                  "add relay: vsi VSI %d not found\n", vsi_seid);
1087                         goto command_write_done;
1088                 }
1089
1090                 for (i = 0; i < I40E_MAX_VEB; i++)
1091                         if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1092                                 break;
1093                 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1094                     uplink_seid != pf->mac_seid) {
1095                         dev_info(&pf->pdev->dev,
1096                                  "add relay: relay uplink %d not found\n",
1097                                  uplink_seid);
1098                         goto command_write_done;
1099                 }
1100
1101                 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1102                                      vsi->tc_config.enabled_tc);
1103                 if (veb)
1104                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1105                 else
1106                         dev_info(&pf->pdev->dev, "add relay failed\n");
1107
1108         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1109                 int i;
1110                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1111                 if (cnt != 1) {
1112                         dev_info(&pf->pdev->dev,
1113                                  "del relay: bad command string, cnt=%d\n",
1114                                  cnt);
1115                         goto command_write_done;
1116                 } else if (veb_seid < 0) {
1117                         dev_info(&pf->pdev->dev,
1118                                  "del relay %d: bad relay seid\n", veb_seid);
1119                         goto command_write_done;
1120                 }
1121
1122                 /* find the veb */
1123                 for (i = 0; i < I40E_MAX_VEB; i++)
1124                         if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1125                                 break;
1126                 if (i >= I40E_MAX_VEB) {
1127                         dev_info(&pf->pdev->dev,
1128                                  "del relay: relay %d not found\n", veb_seid);
1129                         goto command_write_done;
1130                 }
1131
1132                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1133                 i40e_veb_release(pf->veb[i]);
1134
1135         } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
1136                 struct i40e_mac_filter *f;
1137                 int vlan = 0;
1138                 u8 ma[6];
1139                 int ret;
1140
1141                 cnt = sscanf(&cmd_buf[11],
1142                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1143                              &vsi_seid,
1144                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1145                              &vlan);
1146                 if (cnt == 7) {
1147                         vlan = 0;
1148                 } else if (cnt != 8) {
1149                         dev_info(&pf->pdev->dev,
1150                                  "add macaddr: bad command string, cnt=%d\n",
1151                                  cnt);
1152                         goto command_write_done;
1153                 }
1154
1155                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1156                 if (!vsi) {
1157                         dev_info(&pf->pdev->dev,
1158                                  "add macaddr: VSI %d not found\n", vsi_seid);
1159                         goto command_write_done;
1160                 }
1161
1162                 f = i40e_add_filter(vsi, ma, vlan, false, false);
1163                 ret = i40e_sync_vsi_filters(vsi);
1164                 if (f && !ret)
1165                         dev_info(&pf->pdev->dev,
1166                                  "add macaddr: %pM vlan=%d added to VSI %d\n",
1167                                  ma, vlan, vsi_seid);
1168                 else
1169                         dev_info(&pf->pdev->dev,
1170                                  "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1171                                  ma, vlan, vsi_seid, f, ret);
1172
1173         } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
1174                 int vlan = 0;
1175                 u8 ma[6];
1176                 int ret;
1177
1178                 cnt = sscanf(&cmd_buf[11],
1179                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1180                              &vsi_seid,
1181                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1182                              &vlan);
1183                 if (cnt == 7) {
1184                         vlan = 0;
1185                 } else if (cnt != 8) {
1186                         dev_info(&pf->pdev->dev,
1187                                  "del macaddr: bad command string, cnt=%d\n",
1188                                  cnt);
1189                         goto command_write_done;
1190                 }
1191
1192                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1193                 if (!vsi) {
1194                         dev_info(&pf->pdev->dev,
1195                                  "del macaddr: VSI %d not found\n", vsi_seid);
1196                         goto command_write_done;
1197                 }
1198
1199                 i40e_del_filter(vsi, ma, vlan, false, false);
1200                 ret = i40e_sync_vsi_filters(vsi);
1201                 if (!ret)
1202                         dev_info(&pf->pdev->dev,
1203                                  "del macaddr: %pM vlan=%d removed from VSI %d\n",
1204                                  ma, vlan, vsi_seid);
1205                 else
1206                         dev_info(&pf->pdev->dev,
1207                                  "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1208                                  ma, vlan, vsi_seid, ret);
1209
1210         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
1211                 i40e_status ret;
1212                 u16 vid;
1213                 int v;
1214
1215                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1216                 if (cnt != 2) {
1217                         dev_info(&pf->pdev->dev,
1218                                  "add pvid: bad command string, cnt=%d\n", cnt);
1219                         goto command_write_done;
1220                 }
1221
1222                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1223                 if (!vsi) {
1224                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1225                                  vsi_seid);
1226                         goto command_write_done;
1227                 }
1228
1229                 vid = (unsigned)v;
1230                 ret = i40e_vsi_add_pvid(vsi, vid);
1231                 if (!ret)
1232                         dev_info(&pf->pdev->dev,
1233                                  "add pvid: %d added to VSI %d\n",
1234                                  vid, vsi_seid);
1235                 else
1236                         dev_info(&pf->pdev->dev,
1237                                  "add pvid: %d to VSI %d failed, ret=%d\n",
1238                                  vid, vsi_seid, ret);
1239
1240         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1241
1242                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1243                 if (cnt != 1) {
1244                         dev_info(&pf->pdev->dev,
1245                                  "del pvid: bad command string, cnt=%d\n",
1246                                  cnt);
1247                         goto command_write_done;
1248                 }
1249
1250                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1251                 if (!vsi) {
1252                         dev_info(&pf->pdev->dev,
1253                                  "del pvid: VSI %d not found\n", vsi_seid);
1254                         goto command_write_done;
1255                 }
1256
1257                 i40e_vsi_remove_pvid(vsi);
1258                 dev_info(&pf->pdev->dev,
1259                          "del pvid: removed from VSI %d\n", vsi_seid);
1260
1261         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1262                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1263                         i40e_fetch_switch_configuration(pf, true);
1264                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1265                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1266                         if (cnt > 0)
1267                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1268                         else
1269                                 i40e_dbg_dump_vsi_no_seid(pf);
1270                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1271                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1272                         if (cnt > 0)
1273                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1274                         else
1275                                 i40e_dbg_dump_veb_all(pf);
1276                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1277                         int ring_id, desc_n;
1278                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
1279                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1280                                              &vsi_seid, &ring_id, &desc_n);
1281                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1282                                                    desc_n, pf, true);
1283                         } else if (strncmp(&cmd_buf[10], "tx", 2)
1284                                         == 0) {
1285                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1286                                              &vsi_seid, &ring_id, &desc_n);
1287                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1288                                                    desc_n, pf, false);
1289                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1290                                 i40e_dbg_dump_aq_desc(pf);
1291                         } else {
1292                                 dev_info(&pf->pdev->dev,
1293                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1294                                 dev_info(&pf->pdev->dev,
1295                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1296                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
1297                         }
1298                 } else if (strncmp(&cmd_buf[5], "stats", 5) == 0) {
1299                         dev_info(&pf->pdev->dev, "pf stats:\n");
1300                         i40e_dbg_dump_stats(pf, &pf->stats);
1301                         dev_info(&pf->pdev->dev, "pf stats_offsets:\n");
1302                         i40e_dbg_dump_stats(pf, &pf->stats_offsets);
1303                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1304                         dev_info(&pf->pdev->dev,
1305                                  "core reset count: %d\n", pf->corer_count);
1306                         dev_info(&pf->pdev->dev,
1307                                  "global reset count: %d\n", pf->globr_count);
1308                         dev_info(&pf->pdev->dev,
1309                                  "emp reset count: %d\n", pf->empr_count);
1310                         dev_info(&pf->pdev->dev,
1311                                  "pf reset count: %d\n", pf->pfr_count);
1312                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1313                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
1314                         struct i40e_dcbx_config *cfg =
1315                                                 &pf->hw.local_dcbx_config;
1316                         struct i40e_dcbx_config *r_cfg =
1317                                                 &pf->hw.remote_dcbx_config;
1318                         int i, ret;
1319
1320                         bw_data = kzalloc(sizeof(
1321                                     struct i40e_aqc_query_port_ets_config_resp),
1322                                           GFP_KERNEL);
1323                         if (!bw_data) {
1324                                 ret = -ENOMEM;
1325                                 goto command_write_done;
1326                         }
1327
1328                         ret = i40e_aq_query_port_ets_config(&pf->hw,
1329                                                             pf->mac_seid,
1330                                                             bw_data, NULL);
1331                         if (ret) {
1332                                 dev_info(&pf->pdev->dev,
1333                                          "Query Port ETS Config AQ command failed =0x%x\n",
1334                                          pf->hw.aq.asq_last_status);
1335                                 kfree(bw_data);
1336                                 bw_data = NULL;
1337                                 goto command_write_done;
1338                         }
1339                         dev_info(&pf->pdev->dev,
1340                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1341                                  bw_data->tc_valid_bits,
1342                                  bw_data->tc_strict_priority_bits,
1343                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1344                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1345                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1346                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1347                                          bw_data->tc_bw_share_credits[i],
1348                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1349                         }
1350
1351                         kfree(bw_data);
1352                         bw_data = NULL;
1353
1354                         dev_info(&pf->pdev->dev,
1355                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1356                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1357                                  cfg->etscfg.maxtcs);
1358                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1359                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1360                                          i, cfg->etscfg.prioritytable[i],
1361                                          cfg->etscfg.tcbwtable[i],
1362                                          cfg->etscfg.tsatable[i]);
1363                         }
1364                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1365                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1366                                          i, cfg->etsrec.prioritytable[i],
1367                                          cfg->etsrec.tcbwtable[i],
1368                                          cfg->etsrec.tsatable[i]);
1369                         }
1370                         dev_info(&pf->pdev->dev,
1371                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1372                                  cfg->pfc.willing, cfg->pfc.mbc,
1373                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1374                         dev_info(&pf->pdev->dev,
1375                                  "port app_table: num_apps=%d\n", cfg->numapps);
1376                         for (i = 0; i < cfg->numapps; i++) {
1377                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1378                                          i, cfg->app[i].priority,
1379                                          cfg->app[i].selector,
1380                                          cfg->app[i].protocolid);
1381                         }
1382                         /* Peer TLV DCBX data */
1383                         dev_info(&pf->pdev->dev,
1384                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1385                                  r_cfg->etscfg.willing,
1386                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1387                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1388                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1389                                          i, r_cfg->etscfg.prioritytable[i],
1390                                          r_cfg->etscfg.tcbwtable[i],
1391                                          r_cfg->etscfg.tsatable[i]);
1392                         }
1393                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1394                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1395                                          i, r_cfg->etsrec.prioritytable[i],
1396                                          r_cfg->etsrec.tcbwtable[i],
1397                                          r_cfg->etsrec.tsatable[i]);
1398                         }
1399                         dev_info(&pf->pdev->dev,
1400                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1401                                  r_cfg->pfc.willing,
1402                                  r_cfg->pfc.mbc,
1403                                  r_cfg->pfc.pfccap,
1404                                  r_cfg->pfc.pfcenable);
1405                         dev_info(&pf->pdev->dev,
1406                                  "remote port app_table: num_apps=%d\n",
1407                                  r_cfg->numapps);
1408                         for (i = 0; i < r_cfg->numapps; i++) {
1409                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1410                                          i, r_cfg->app[i].priority,
1411                                          r_cfg->app[i].selector,
1412                                          r_cfg->app[i].protocolid);
1413                         }
1414                 } else {
1415                         dev_info(&pf->pdev->dev,
1416                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1417                         dev_info(&pf->pdev->dev, "dump switch, dump vsi [seid] or\n");
1418                         dev_info(&pf->pdev->dev, "dump stats\n");
1419                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1420                         dev_info(&pf->pdev->dev, "dump port\n");
1421                         dev_info(&pf->pdev->dev,
1422                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1423                 }
1424
1425         } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1426                 u32 level;
1427                 cnt = sscanf(&cmd_buf[10], "%i", &level);
1428                 if (cnt) {
1429                         if (I40E_DEBUG_USER & level) {
1430                                 pf->hw.debug_mask = level;
1431                                 dev_info(&pf->pdev->dev,
1432                                          "set hw.debug_mask = 0x%08x\n",
1433                                          pf->hw.debug_mask);
1434                         }
1435                         pf->msg_enable = level;
1436                         dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1437                                  pf->msg_enable);
1438                 } else {
1439                         dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1440                                  pf->msg_enable);
1441                 }
1442         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1443                 dev_info(&pf->pdev->dev, "forcing PFR\n");
1444                 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
1445
1446         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1447                 dev_info(&pf->pdev->dev, "forcing CoreR\n");
1448                 i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED));
1449
1450         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1451                 dev_info(&pf->pdev->dev, "forcing GlobR\n");
1452                 i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED));
1453
1454         } else if (strncmp(cmd_buf, "empr", 4) == 0) {
1455                 dev_info(&pf->pdev->dev, "forcing EMPR\n");
1456                 i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED));
1457
1458         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1459                 u32 address;
1460                 u32 value;
1461                 cnt = sscanf(&cmd_buf[4], "%i", &address);
1462                 if (cnt != 1) {
1463                         dev_info(&pf->pdev->dev, "read <reg>\n");
1464                         goto command_write_done;
1465                 }
1466
1467                 /* check the range on address */
1468                 if (address >= I40E_MAX_REGISTER) {
1469                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n",
1470                                  address);
1471                         goto command_write_done;
1472                 }
1473
1474                 value = rd32(&pf->hw, address);
1475                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1476                          address, value);
1477
1478         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1479                 u32 address, value;
1480                 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1481                 if (cnt != 2) {
1482                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1483                         goto command_write_done;
1484                 }
1485
1486                 /* check the range on address */
1487                 if (address >= I40E_MAX_REGISTER) {
1488                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n",
1489                                  address);
1490                         goto command_write_done;
1491                 }
1492                 wr32(&pf->hw, address, value);
1493                 value = rd32(&pf->hw, address);
1494                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1495                          address, value);
1496         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1497                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1498                         cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1499                         if (cnt == 0) {
1500                                 int i;
1501                                 for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
1502                                         i40e_vsi_reset_stats(pf->vsi[i]);
1503                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1504                         } else if (cnt == 1) {
1505                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1506                                 if (!vsi) {
1507                                         dev_info(&pf->pdev->dev,
1508                                                  "clear_stats vsi: bad vsi %d\n",
1509                                                  vsi_seid);
1510                                         goto command_write_done;
1511                                 }
1512                                 i40e_vsi_reset_stats(vsi);
1513                                 dev_info(&pf->pdev->dev,
1514                                          "vsi clear stats called for vsi %d\n",
1515                                          vsi_seid);
1516                         } else {
1517                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1518                         }
1519                 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) {
1520                         i40e_pf_reset_stats(pf);
1521                         dev_info(&pf->pdev->dev, "pf clear stats called\n");
1522                 } else {
1523                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n");
1524                 }
1525         } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1526                    (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
1527                 struct i40e_fdir_data fd_data;
1528                 u16 packet_len, i, j = 0;
1529                 char *asc_packet;
1530                 bool add = false;
1531                 int ret;
1532
1533                 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP,
1534                                      GFP_KERNEL);
1535                 if (!asc_packet)
1536                         goto command_write_done;
1537
1538                 fd_data.raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP,
1539                                              GFP_KERNEL);
1540
1541                 if (!fd_data.raw_packet) {
1542                         kfree(asc_packet);
1543                         asc_packet = NULL;
1544                         goto command_write_done;
1545                 }
1546
1547                 if (strncmp(cmd_buf, "add", 3) == 0)
1548                         add = true;
1549                 cnt = sscanf(&cmd_buf[13],
1550                              "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s",
1551                              &fd_data.q_index,
1552                              &fd_data.flex_off, &fd_data.pctype,
1553                              &fd_data.dest_vsi, &fd_data.dest_ctl,
1554                              &fd_data.fd_status, &fd_data.cnt_index,
1555                              &fd_data.fd_id, &packet_len, asc_packet);
1556                 if (cnt != 10) {
1557                         dev_info(&pf->pdev->dev,
1558                                  "program fd_filter: bad command string, cnt=%d\n",
1559                                  cnt);
1560                         kfree(asc_packet);
1561                         asc_packet = NULL;
1562                         kfree(fd_data.raw_packet);
1563                         goto command_write_done;
1564                 }
1565
1566                 /* fix packet length if user entered 0 */
1567                 if (packet_len == 0)
1568                         packet_len = I40E_FDIR_MAX_RAW_PACKET_LOOKUP;
1569
1570                 /* make sure to check the max as well */
1571                 packet_len = min_t(u16,
1572                                    packet_len, I40E_FDIR_MAX_RAW_PACKET_LOOKUP);
1573
1574                 for (i = 0; i < packet_len; i++) {
1575                         sscanf(&asc_packet[j], "%2hhx ",
1576                                &fd_data.raw_packet[i]);
1577                         j += 3;
1578                 }
1579                 dev_info(&pf->pdev->dev, "FD raw packet dump\n");
1580                 print_hex_dump(KERN_INFO, "FD raw packet: ",
1581                                DUMP_PREFIX_OFFSET, 16, 1,
1582                                fd_data.raw_packet, packet_len, true);
1583                 ret = i40e_program_fdir_filter(&fd_data, pf, add);
1584                 if (!ret) {
1585                         dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1586                 } else {
1587                         dev_info(&pf->pdev->dev,
1588                                  "Filter command send failed %d\n", ret);
1589                 }
1590                 kfree(fd_data.raw_packet);
1591                 fd_data.raw_packet = NULL;
1592                 kfree(asc_packet);
1593                 asc_packet = NULL;
1594         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1595                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1596                         int ret;
1597                         ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1598                         if (ret) {
1599                                 dev_info(&pf->pdev->dev,
1600                                          "Stop LLDP AQ command failed =0x%x\n",
1601                                          pf->hw.aq.asq_last_status);
1602                                 goto command_write_done;
1603                         }
1604                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1605                         int ret;
1606                         ret = i40e_aq_start_lldp(&pf->hw, NULL);
1607                         if (ret) {
1608                                 dev_info(&pf->pdev->dev,
1609                                          "Start LLDP AQ command failed =0x%x\n",
1610                                          pf->hw.aq.asq_last_status);
1611                                 goto command_write_done;
1612                         }
1613                 } else if (strncmp(&cmd_buf[5],
1614                            "get local", 9) == 0) {
1615                         u16 llen, rlen;
1616                         int ret;
1617                         u8 *buff;
1618                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1619                         if (!buff)
1620                                 goto command_write_done;
1621
1622                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1623                                                    I40E_AQ_LLDP_MIB_LOCAL,
1624                                                    buff, I40E_LLDPDU_SIZE,
1625                                                    &llen, &rlen, NULL);
1626                         if (ret) {
1627                                 dev_info(&pf->pdev->dev,
1628                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1629                                          pf->hw.aq.asq_last_status);
1630                                 kfree(buff);
1631                                 buff = NULL;
1632                                 goto command_write_done;
1633                         }
1634                         dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1635                         print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1636                                        DUMP_PREFIX_OFFSET, 16, 1,
1637                                        buff, I40E_LLDPDU_SIZE, true);
1638                         kfree(buff);
1639                         buff = NULL;
1640                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1641                         u16 llen, rlen;
1642                         int ret;
1643                         u8 *buff;
1644                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1645                         if (!buff)
1646                                 goto command_write_done;
1647
1648                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1649                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1650                                         I40E_AQ_LLDP_MIB_LOCAL,
1651                                         buff, I40E_LLDPDU_SIZE,
1652                                         &llen, &rlen, NULL);
1653                         if (ret) {
1654                                 dev_info(&pf->pdev->dev,
1655                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1656                                          pf->hw.aq.asq_last_status);
1657                                 kfree(buff);
1658                                 buff = NULL;
1659                                 goto command_write_done;
1660                         }
1661                         dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1662                         print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1663                                        DUMP_PREFIX_OFFSET, 16, 1,
1664                                        buff, I40E_LLDPDU_SIZE, true);
1665                         kfree(buff);
1666                         buff = NULL;
1667                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1668                         int ret;
1669                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1670                                                                 true, NULL);
1671                         if (ret) {
1672                                 dev_info(&pf->pdev->dev,
1673                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1674                                          pf->hw.aq.asq_last_status);
1675                                 goto command_write_done;
1676                         }
1677                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1678                         int ret;
1679                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1680                                                                 false, NULL);
1681                         if (ret) {
1682                                 dev_info(&pf->pdev->dev,
1683                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1684                                          pf->hw.aq.asq_last_status);
1685                                 goto command_write_done;
1686                         }
1687                 }
1688         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1689                 u16 buffer_len, bytes;
1690                 u16 module;
1691                 u32 offset;
1692                 u16 *buff;
1693                 int ret;
1694
1695                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1696                              &module, &offset, &buffer_len);
1697                 if (cnt == 0) {
1698                         module = 0;
1699                         offset = 0;
1700                         buffer_len = 0;
1701                 } else if (cnt == 1) {
1702                         offset = 0;
1703                         buffer_len = 0;
1704                 } else if (cnt == 2) {
1705                         buffer_len = 0;
1706                 } else if (cnt > 3) {
1707                         dev_info(&pf->pdev->dev,
1708                                  "nvm read: bad command string, cnt=%d\n", cnt);
1709                         goto command_write_done;
1710                 }
1711
1712                 /* set the max length */
1713                 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1714
1715                 bytes = 2 * buffer_len;
1716
1717                 /* read at least 1k bytes, no more than 4kB */
1718                 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1719                 buff = kzalloc(bytes, GFP_KERNEL);
1720                 if (!buff)
1721                         goto command_write_done;
1722
1723                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1724                 if (ret) {
1725                         dev_info(&pf->pdev->dev,
1726                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1727                                  ret, pf->hw.aq.asq_last_status);
1728                         kfree(buff);
1729                         goto command_write_done;
1730                 }
1731
1732                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1733                                        bytes, (u8 *)buff, true, NULL);
1734                 i40e_release_nvm(&pf->hw);
1735                 if (ret) {
1736                         dev_info(&pf->pdev->dev,
1737                                  "Read NVM AQ failed err=%d status=0x%x\n",
1738                                  ret, pf->hw.aq.asq_last_status);
1739                 } else {
1740                         dev_info(&pf->pdev->dev,
1741                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1742                                  module, offset, buffer_len);
1743                         if (bytes)
1744                                 print_hex_dump(KERN_INFO, "NVM Dump: ",
1745                                         DUMP_PREFIX_OFFSET, 16, 2,
1746                                         buff, bytes, true);
1747                 }
1748                 kfree(buff);
1749                 buff = NULL;
1750         } else {
1751                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1752                 dev_info(&pf->pdev->dev, "available commands\n");
1753                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1754                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1755                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1756                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1757                 dev_info(&pf->pdev->dev, "  add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1758                 dev_info(&pf->pdev->dev, "  del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1759                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1760                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1761                 dev_info(&pf->pdev->dev, "  dump switch\n");
1762                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1763                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1764                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1765                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1766                 dev_info(&pf->pdev->dev, "  dump stats\n");
1767                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1768                 dev_info(&pf->pdev->dev, "  msg_enable [level]\n");
1769                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1770                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1771                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1772                 dev_info(&pf->pdev->dev, "  clear_stats pf\n");
1773                 dev_info(&pf->pdev->dev, "  pfr\n");
1774                 dev_info(&pf->pdev->dev, "  corer\n");
1775                 dev_info(&pf->pdev->dev, "  globr\n");
1776                 dev_info(&pf->pdev->dev, "  add fd_filter <dest q_index> <flex_off> <pctype> <dest_vsi> <dest_ctl> <fd_status> <cnt_index> <fd_id> <packet_len> <packet>\n");
1777                 dev_info(&pf->pdev->dev, "  rem fd_filter <dest q_index> <flex_off> <pctype> <dest_vsi> <dest_ctl> <fd_status> <cnt_index> <fd_id> <packet_len> <packet>\n");
1778                 dev_info(&pf->pdev->dev, "  lldp start\n");
1779                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1780                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1781                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1782                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1783                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1784                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1785         }
1786
1787 command_write_done:
1788         kfree(cmd_buf);
1789         cmd_buf = NULL;
1790         return count;
1791 }
1792
1793 static const struct file_operations i40e_dbg_command_fops = {
1794         .owner = THIS_MODULE,
1795         .open =  simple_open,
1796         .read =  i40e_dbg_command_read,
1797         .write = i40e_dbg_command_write,
1798 };
1799
1800 /**************************************************************
1801  * netdev_ops
1802  * The netdev_ops entry in debugfs is for giving the driver commands
1803  * to be executed from the netdev operations.
1804  **************************************************************/
1805 static char i40e_dbg_netdev_ops_buf[256] = "hello world";
1806
1807 /**
1808  * i40e_dbg_netdev_ops - read for netdev_ops datum
1809  * @filp: the opened file
1810  * @buffer: where to write the data for the user to read
1811  * @count: the size of the user's buffer
1812  * @ppos: file position offset
1813  **/
1814 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1815                                         size_t count, loff_t *ppos)
1816 {
1817         struct i40e_pf *pf = filp->private_data;
1818         int bytes_not_copied;
1819         int buf_size = 256;
1820         char *buf;
1821         int len;
1822
1823         /* don't allow partal reads */
1824         if (*ppos != 0)
1825                 return 0;
1826         if (count < buf_size)
1827                 return -ENOSPC;
1828
1829         buf = kzalloc(buf_size, GFP_KERNEL);
1830         if (!buf)
1831                 return -ENOSPC;
1832
1833         len = snprintf(buf, buf_size, "%s: %s\n",
1834                        pf->vsi[pf->lan_vsi]->netdev->name,
1835                        i40e_dbg_netdev_ops_buf);
1836
1837         bytes_not_copied = copy_to_user(buffer, buf, len);
1838         kfree(buf);
1839
1840         if (bytes_not_copied < 0)
1841                 return bytes_not_copied;
1842
1843         *ppos = len;
1844         return len;
1845 }
1846
1847 /**
1848  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1849  * @filp: the opened file
1850  * @buffer: where to find the user's data
1851  * @count: the length of the user's data
1852  * @ppos: file position offset
1853  **/
1854 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1855                                          const char __user *buffer,
1856                                          size_t count, loff_t *ppos)
1857 {
1858         struct i40e_pf *pf = filp->private_data;
1859         int bytes_not_copied;
1860         struct i40e_vsi *vsi;
1861         char *buf_tmp;
1862         int vsi_seid;
1863         int i, cnt;
1864
1865         /* don't allow partial writes */
1866         if (*ppos != 0)
1867                 return 0;
1868         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1869                 return -ENOSPC;
1870
1871         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1872         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1873                                           buffer, count);
1874         if (bytes_not_copied < 0)
1875                 return bytes_not_copied;
1876         else if (bytes_not_copied > 0)
1877                 count -= bytes_not_copied;
1878         i40e_dbg_netdev_ops_buf[count] = '\0';
1879
1880         buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
1881         if (buf_tmp) {
1882                 *buf_tmp = '\0';
1883                 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
1884         }
1885
1886         if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
1887                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1888                 if (cnt != 1) {
1889                         dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
1890                         goto netdev_ops_write_done;
1891                 }
1892                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1893                 if (!vsi) {
1894                         dev_info(&pf->pdev->dev,
1895                                  "tx_timeout: VSI %d not found\n", vsi_seid);
1896                         goto netdev_ops_write_done;
1897                 }
1898                 if (rtnl_trylock()) {
1899                         vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
1900                         rtnl_unlock();
1901                         dev_info(&pf->pdev->dev, "tx_timeout called\n");
1902                 } else {
1903                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1904                 }
1905         } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1906                 int mtu;
1907                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1908                              &vsi_seid, &mtu);
1909                 if (cnt != 2) {
1910                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1911                         goto netdev_ops_write_done;
1912                 }
1913                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1914                 if (!vsi) {
1915                         dev_info(&pf->pdev->dev,
1916                                  "change_mtu: VSI %d not found\n", vsi_seid);
1917                         goto netdev_ops_write_done;
1918                 }
1919                 if (rtnl_trylock()) {
1920                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
1921                                                                 mtu);
1922                         rtnl_unlock();
1923                         dev_info(&pf->pdev->dev, "change_mtu called\n");
1924                 } else {
1925                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1926                 }
1927
1928         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1929                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1930                 if (cnt != 1) {
1931                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1932                         goto netdev_ops_write_done;
1933                 }
1934                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1935                 if (!vsi) {
1936                         dev_info(&pf->pdev->dev,
1937                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
1938                         goto netdev_ops_write_done;
1939                 }
1940                 if (rtnl_trylock()) {
1941                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1942                         rtnl_unlock();
1943                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1944                 } else {
1945                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1946                 }
1947
1948         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1949                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1950                 if (cnt != 1) {
1951                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1952                         goto netdev_ops_write_done;
1953                 }
1954                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1955                 if (!vsi) {
1956                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
1957                                  vsi_seid);
1958                         goto netdev_ops_write_done;
1959                 }
1960                 for (i = 0; i < vsi->num_q_vectors; i++)
1961                         napi_schedule(&vsi->q_vectors[i]->napi);
1962                 dev_info(&pf->pdev->dev, "napi called\n");
1963         } else {
1964                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
1965                          i40e_dbg_netdev_ops_buf);
1966                 dev_info(&pf->pdev->dev, "available commands\n");
1967                 dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
1968                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
1969                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
1970                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
1971         }
1972 netdev_ops_write_done:
1973         return count;
1974 }
1975
1976 static const struct file_operations i40e_dbg_netdev_ops_fops = {
1977         .owner = THIS_MODULE,
1978         .open = simple_open,
1979         .read = i40e_dbg_netdev_ops_read,
1980         .write = i40e_dbg_netdev_ops_write,
1981 };
1982
1983 /**
1984  * i40e_dbg_pf_init - setup the debugfs directory for the pf
1985  * @pf: the pf that is starting up
1986  **/
1987 void i40e_dbg_pf_init(struct i40e_pf *pf)
1988 {
1989         struct dentry *pfile;
1990         const char *name = pci_name(pf->pdev);
1991         const struct device *dev = &pf->pdev->dev;
1992
1993         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
1994         if (!pf->i40e_dbg_pf)
1995                 return;
1996
1997         pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
1998                                     &i40e_dbg_command_fops);
1999         if (!pfile)
2000                 goto create_failed;
2001
2002         pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2003                                     &i40e_dbg_dump_fops);
2004         if (!pfile)
2005                 goto create_failed;
2006
2007         pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
2008                                     &i40e_dbg_netdev_ops_fops);
2009         if (!pfile)
2010                 goto create_failed;
2011
2012         return;
2013
2014 create_failed:
2015         dev_info(dev, "debugfs dir/file for %s failed\n", name);
2016         debugfs_remove_recursive(pf->i40e_dbg_pf);
2017         return;
2018 }
2019
2020 /**
2021  * i40e_dbg_pf_exit - clear out the pf's debugfs entries
2022  * @pf: the pf that is stopping
2023  **/
2024 void i40e_dbg_pf_exit(struct i40e_pf *pf)
2025 {
2026         debugfs_remove_recursive(pf->i40e_dbg_pf);
2027         pf->i40e_dbg_pf = NULL;
2028
2029         kfree(i40e_dbg_dump_buf);
2030         i40e_dbg_dump_buf = NULL;
2031 }
2032
2033 /**
2034  * i40e_dbg_init - start up debugfs for the driver
2035  **/
2036 void i40e_dbg_init(void)
2037 {
2038         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2039         if (!i40e_dbg_root)
2040                 pr_info("init of debugfs failed\n");
2041 }
2042
2043 /**
2044  * i40e_dbg_exit - clean out the driver's debugfs entries
2045  **/
2046 void i40e_dbg_exit(void)
2047 {
2048         debugfs_remove_recursive(i40e_dbg_root);
2049         i40e_dbg_root = NULL;
2050 }
2051
2052 #endif /* CONFIG_DEBUG_FS */