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, 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, 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 pokem 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         int i;
 711
 712         /* first the send (command) ring, then the receive (event) ring */
 713         dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 714         ring = &(hw->aq.asq);
 715         for (i = 0; i < ring->count; i++) {
 716                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 717                 dev_info(&pf->pdev->dev,
 718                          "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 719                          i, d->flags, d->opcode, d->datalen, d->retval,
 720                          d->cookie_high, d->cookie_low);
 721                 dev_info(&pf->pdev->dev,
 722                          "            %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
 723                          d->params.raw[0], d->params.raw[1], d->params.raw[2],
 724                          d->params.raw[3], d->params.raw[4], d->params.raw[5],
 725                          d->params.raw[6], d->params.raw[7], d->params.raw[8],
 726                          d->params.raw[9], d->params.raw[10], d->params.raw[11],
 727                          d->params.raw[12], d->params.raw[13],
 728                          d->params.raw[14], d->params.raw[15]);
 729         }
 730
 731         dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 732         ring = &(hw->aq.arq);
 733         for (i = 0; i < ring->count; i++) {
 734                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 735                 dev_info(&pf->pdev->dev,
 736                          "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 737                          i, d->flags, d->opcode, d->datalen, d->retval,
 738                          d->cookie_high, d->cookie_low);
 739                 dev_info(&pf->pdev->dev,
 740                          "            %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
 741                          d->params.raw[0], d->params.raw[1], d->params.raw[2],
 742                          d->params.raw[3], d->params.raw[4], d->params.raw[5],
 743                          d->params.raw[6], d->params.raw[7], d->params.raw[8],
 744                          d->params.raw[9], d->params.raw[10], d->params.raw[11],
 745                          d->params.raw[12], d->params.raw[13],
 746                          d->params.raw[14], d->params.raw[15]);
 747         }
 748 }
 749
 750 /**
 751  * i40e_dbg_dump_desc - handles dump desc write into command datum
 752  * @cnt: number of arguments that the user supplied
 753  * @vsi_seid: vsi id entered by user
 754  * @ring_id: ring id entered by user
 755  * @desc_n: descriptor number entered by user
 756  * @pf: the i40e_pf created in command write
 757  * @is_rx_ring: true if rx, false if tx
 758  **/
 759 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 760                                struct i40e_pf *pf, bool is_rx_ring)
 761 {
 762         union i40e_rx_desc *ds;
 763         struct i40e_ring ring;
 764         struct i40e_vsi *vsi;
 765         int i;
 766
 767         vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 768         if (!vsi) {
 769                 dev_info(&pf->pdev->dev,
 770                          "vsi %d not found\n", vsi_seid);
 771                 if (is_rx_ring)
 772                         dev_info(&pf->pdev->dev, "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
 773                 else
 774                         dev_info(&pf->pdev->dev, "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
 775                 return;
 776         }
 777         if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 778                 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 779                 if (is_rx_ring)
 780                         dev_info(&pf->pdev->dev, "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
 781                 else
 782                         dev_info(&pf->pdev->dev, "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
 783                 return;
 784         }
 785         if (is_rx_ring)
 786                 ring = *vsi->rx_rings[ring_id];
 787         else
 788                 ring = *vsi->tx_rings[ring_id];
 789         if (cnt == 2) {
 790                 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 791                          vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
 792                 for (i = 0; i < ring.count; i++) {
 793                         if (is_rx_ring)
 794                                 ds = I40E_RX_DESC(&ring, i);
 795                         else
 796                                 ds = (union i40e_rx_desc *)
 797                                         I40E_TX_DESC(&ring, i);
 798                         if ((sizeof(union i40e_rx_desc) ==
 799                             sizeof(union i40e_16byte_rx_desc)) || (!is_rx_ring))
 800                                 dev_info(&pf->pdev->dev,
 801                                          "   d[%03i] = 0x%016llx 0x%016llx\n", i,
 802                                          ds->read.pkt_addr, ds->read.hdr_addr);
 803                         else
 804                                 dev_info(&pf->pdev->dev,
 805                                          "   d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 806                                          i, ds->read.pkt_addr,
 807                                          ds->read.hdr_addr,
 808                                          ds->read.rsvd1, ds->read.rsvd2);
 809                 }
 810         } else if (cnt == 3) {
 811                 if (desc_n >= ring.count || desc_n < 0) {
 812                         dev_info(&pf->pdev->dev,
 813                                  "descriptor %d not found\n", desc_n);
 814                         return;
 815                 }
 816                 if (is_rx_ring)
 817                         ds = I40E_RX_DESC(&ring, desc_n);
 818                 else
 819                         ds = (union i40e_rx_desc *)I40E_TX_DESC(&ring, desc_n);
 820                 if ((sizeof(union i40e_rx_desc) ==
 821                     sizeof(union i40e_16byte_rx_desc)) || (!is_rx_ring))
 822                         dev_info(&pf->pdev->dev,
 823                                  "vsi = %02i %s ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
 824                                  vsi_seid, is_rx_ring ? "rx" : "tx", ring_id,
 825                                  desc_n, ds->read.pkt_addr, ds->read.hdr_addr);
 826                 else
 827                         dev_info(&pf->pdev->dev,
 828                                  "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 829                                  vsi_seid, ring_id,
 830                                  desc_n, ds->read.pkt_addr, ds->read.hdr_addr,
 831                                  ds->read.rsvd1, ds->read.rsvd2);
 832         } else {
 833                 if (is_rx_ring)
 834                         dev_info(&pf->pdev->dev, "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
 835                 else
 836                         dev_info(&pf->pdev->dev, "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
 837         }
 838 }
 839
 840 /**
 841  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 842  * @pf: the i40e_pf created in command write
 843  **/
 844 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 845 {
 846         int i;
 847
 848         for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
 849                 if (pf->vsi[i])
 850                         dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 851                                  i, pf->vsi[i]->seid);
 852 }
 853
 854 /**
 855  * i40e_dbg_dump_stats - handles dump stats write into command datum
 856  * @pf: the i40e_pf created in command write
 857  * @estats: the eth stats structure to be dumped
 858  **/
 859 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 860                                     struct i40e_eth_stats *estats)
 861 {
 862         dev_info(&pf->pdev->dev, "  ethstats:\n");
 863         dev_info(&pf->pdev->dev,
 864                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 865                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 866         dev_info(&pf->pdev->dev,
 867                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld \trx_errors = \t%lld\n",
 868                  estats->rx_broadcast, estats->rx_discards, estats->rx_errors);
 869         dev_info(&pf->pdev->dev,
 870                  "    rx_missed = \t%lld \trx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 871                  estats->rx_missed, estats->rx_unknown_protocol,
 872                  estats->tx_bytes);
 873         dev_info(&pf->pdev->dev,
 874                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 875                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 876         dev_info(&pf->pdev->dev,
 877                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 878                  estats->tx_discards, estats->tx_errors);
 879 }
 880
 881 /**
 882  * i40e_dbg_dump_stats - handles dump stats write into command datum
 883  * @pf: the i40e_pf created in command write
 884  * @stats: the stats structure to be dumped
 885  **/
 886 static void i40e_dbg_dump_stats(struct i40e_pf *pf,
 887                                 struct i40e_hw_port_stats *stats)
 888 {
 889         int i;
 890
 891         dev_info(&pf->pdev->dev, "  stats:\n");
 892         dev_info(&pf->pdev->dev,
 893                  "    crc_errors = \t\t%lld \tillegal_bytes = \t%lld \terror_bytes = \t\t%lld\n",
 894                  stats->crc_errors, stats->illegal_bytes, stats->error_bytes);
 895         dev_info(&pf->pdev->dev,
 896                  "    mac_local_faults = \t%lld \tmac_remote_faults = \t%lld \trx_length_errors = \t%lld\n",
 897                  stats->mac_local_faults, stats->mac_remote_faults,
 898                  stats->rx_length_errors);
 899         dev_info(&pf->pdev->dev,
 900                  "    link_xon_rx = \t\t%lld \tlink_xoff_rx = \t\t%lld \tlink_xon_tx = \t\t%lld\n",
 901                  stats->link_xon_rx, stats->link_xoff_rx, stats->link_xon_tx);
 902         dev_info(&pf->pdev->dev,
 903                  "    link_xoff_tx = \t\t%lld \trx_size_64 = \t\t%lld \trx_size_127 = \t\t%lld\n",
 904                  stats->link_xoff_tx, stats->rx_size_64, stats->rx_size_127);
 905         dev_info(&pf->pdev->dev,
 906                  "    rx_size_255 = \t\t%lld \trx_size_511 = \t\t%lld \trx_size_1023 = \t\t%lld\n",
 907                  stats->rx_size_255, stats->rx_size_511, stats->rx_size_1023);
 908         dev_info(&pf->pdev->dev,
 909                  "    rx_size_big = \t\t%lld \trx_undersize = \t\t%lld \trx_jabber = \t\t%lld\n",
 910                  stats->rx_size_big, stats->rx_undersize, stats->rx_jabber);
 911         dev_info(&pf->pdev->dev,
 912                  "    rx_fragments = \t\t%lld \trx_oversize = \t\t%lld \ttx_size_64 = \t\t%lld\n",
 913                  stats->rx_fragments, stats->rx_oversize, stats->tx_size_64);
 914         dev_info(&pf->pdev->dev,
 915                  "    tx_size_127 = \t\t%lld \ttx_size_255 = \t\t%lld \ttx_size_511 = \t\t%lld\n",
 916                  stats->tx_size_127, stats->tx_size_255, stats->tx_size_511);
 917         dev_info(&pf->pdev->dev,
 918                  "    tx_size_1023 = \t\t%lld \ttx_size_big = \t\t%lld \tmac_short_packet_dropped = \t%lld\n",
 919                  stats->tx_size_1023, stats->tx_size_big,
 920                  stats->mac_short_packet_dropped);
 921         for (i = 0; i < 8; i += 4) {
 922                 dev_info(&pf->pdev->dev,
 923                          "    priority_xon_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 924                          i, stats->priority_xon_rx[i],
 925                          i+1, stats->priority_xon_rx[i+1],
 926                          i+2, stats->priority_xon_rx[i+2],
 927                          i+3, stats->priority_xon_rx[i+3]);
 928         }
 929         for (i = 0; i < 8; i += 4) {
 930                 dev_info(&pf->pdev->dev,
 931                          "    priority_xoff_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 932                          i, stats->priority_xoff_rx[i],
 933                          i+1, stats->priority_xoff_rx[i+1],
 934                          i+2, stats->priority_xoff_rx[i+2],
 935                          i+3, stats->priority_xoff_rx[i+3]);
 936         }
 937         for (i = 0; i < 8; i += 4) {
 938                 dev_info(&pf->pdev->dev,
 939                          "    priority_xon_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 940                          i, stats->priority_xon_tx[i],
 941                          i+1, stats->priority_xon_tx[i+1],
 942                          i+2, stats->priority_xon_tx[i+2],
 943                          i+3, stats->priority_xon_rx[i+3]);
 944         }
 945         for (i = 0; i < 8; i += 4) {
 946                 dev_info(&pf->pdev->dev,
 947                          "    priority_xoff_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 948                          i, stats->priority_xoff_tx[i],
 949                          i+1, stats->priority_xoff_tx[i+1],
 950                          i+2, stats->priority_xoff_tx[i+2],
 951                          i+3, stats->priority_xoff_tx[i+3]);
 952         }
 953         for (i = 0; i < 8; i += 4) {
 954                 dev_info(&pf->pdev->dev,
 955                          "    priority_xon_2_xoff[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 956                          i, stats->priority_xon_2_xoff[i],
 957                          i+1, stats->priority_xon_2_xoff[i+1],
 958                          i+2, stats->priority_xon_2_xoff[i+2],
 959                          i+3, stats->priority_xon_2_xoff[i+3]);
 960         }
 961
 962         i40e_dbg_dump_eth_stats(pf, &stats->eth);
 963 }
 964
 965 /**
 966  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 967  * @pf: the i40e_pf created in command write
 968  * @seid: the seid the user put in
 969  **/
 970 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 971 {
 972         struct i40e_veb *veb;
 973
 974         if ((seid < I40E_BASE_VEB_SEID) ||
 975             (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
 976                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
 977                 return;
 978         }
 979
 980         veb = i40e_dbg_find_veb(pf, seid);
 981         if (!veb) {
 982                 dev_info(&pf->pdev->dev,
 983                          "%d: can't find veb\n", seid);
 984                 return;
 985         }
 986         dev_info(&pf->pdev->dev,
 987                  "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d\n",
 988                  veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 989                  veb->uplink_seid);
 990         i40e_dbg_dump_eth_stats(pf, &veb->stats);
 991 }
 992
 993 /**
 994  * i40e_dbg_dump_veb_all - dumps all known veb's stats
 995  * @pf: the i40e_pf created in command write
 996  **/
 997 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 998 {
 999         struct i40e_veb *veb;
1000         int i;
1001
1002         for (i = 0; i < I40E_MAX_VEB; i++) {
1003                 veb = pf->veb[i];
1004                 if (veb)
1005                         i40e_dbg_dump_veb_seid(pf, veb->seid);
1006         }
1007 }
1008
1009 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
1010 /**
1011  * i40e_dbg_command_write - write into command datum
1012  * @filp: the opened file
1013  * @buffer: where to find the user's data
1014  * @count: the length of the user's data
1015  * @ppos: file position offset
1016  **/
1017 static ssize_t i40e_dbg_command_write(struct file *filp,
1018                                       const char __user *buffer,
1019                                       size_t count, loff_t *ppos)
1020 {
1021         struct i40e_pf *pf = filp->private_data;
1022         char *cmd_buf, *cmd_buf_tmp;
1023         int bytes_not_copied;
1024         struct i40e_vsi *vsi;
1025         u8 *print_buf_start;
1026         u8 *print_buf;
1027         int vsi_seid;
1028         int veb_seid;
1029         int cnt;
1030
1031         /* don't allow partial writes */
1032         if (*ppos != 0)
1033                 return 0;
1034
1035         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
1036         if (!cmd_buf)
1037                 return count;
1038         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
1039         if (bytes_not_copied < 0)
1040                 return bytes_not_copied;
1041         if (bytes_not_copied > 0)
1042                 count -= bytes_not_copied;
1043         cmd_buf[count] = '\0';
1044
1045         cmd_buf_tmp = strchr(cmd_buf, '\n');
1046         if (cmd_buf_tmp) {
1047                 *cmd_buf_tmp = '\0';
1048                 count = cmd_buf_tmp - cmd_buf + 1;
1049         }
1050
1051         print_buf_start = kzalloc(I40E_MAX_DEBUG_OUT_BUFFER, GFP_KERNEL);
1052         if (!print_buf_start)
1053                 goto command_write_done;
1054         print_buf = print_buf_start;
1055
1056         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
1057                 vsi_seid = -1;
1058                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1059                 if (cnt == 0) {
1060                         /* default to PF VSI */
1061                         vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1062                 } else if (vsi_seid < 0) {
1063                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1064                                  vsi_seid);
1065                         goto command_write_done;
1066                 }
1067
1068                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1069                 if (vsi)
1070                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1071                                  vsi->seid, vsi->uplink_seid);
1072                 else
1073                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1074
1075         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1076                 sscanf(&cmd_buf[7], "%i", &vsi_seid);
1077                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1078                 if (!vsi) {
1079                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1080                                  vsi_seid);
1081                         goto command_write_done;
1082                 }
1083
1084                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1085                 i40e_vsi_release(vsi);
1086
1087         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1088                 struct i40e_veb *veb;
1089                 int uplink_seid, i;
1090
1091                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1092                 if (cnt != 2) {
1093                         dev_info(&pf->pdev->dev,
1094                                  "add relay: bad command string, cnt=%d\n",
1095                                  cnt);
1096                         goto command_write_done;
1097                 } else if (uplink_seid < 0) {
1098                         dev_info(&pf->pdev->dev,
1099                                  "add relay %d: bad uplink seid\n",
1100                                  uplink_seid);
1101                         goto command_write_done;
1102                 }
1103
1104                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1105                 if (!vsi) {
1106                         dev_info(&pf->pdev->dev,
1107                                  "add relay: vsi VSI %d not found\n", vsi_seid);
1108                         goto command_write_done;
1109                 }
1110
1111                 for (i = 0; i < I40E_MAX_VEB; i++)
1112                         if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1113                                 break;
1114                 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1115                     uplink_seid != pf->mac_seid) {
1116                         dev_info(&pf->pdev->dev,
1117                                  "add relay: relay uplink %d not found\n",
1118                                  uplink_seid);
1119                         goto command_write_done;
1120                 }
1121
1122                 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1123                                      vsi->tc_config.enabled_tc);
1124                 if (veb)
1125                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1126                 else
1127                         dev_info(&pf->pdev->dev, "add relay failed\n");
1128
1129         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1130                 int i;
1131                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1132                 if (cnt != 1) {
1133                         dev_info(&pf->pdev->dev,
1134                                  "del relay: bad command string, cnt=%d\n",
1135                                  cnt);
1136                         goto command_write_done;
1137                 } else if (veb_seid < 0) {
1138                         dev_info(&pf->pdev->dev,
1139                                  "del relay %d: bad relay seid\n", veb_seid);
1140                         goto command_write_done;
1141                 }
1142
1143                 /* find the veb */
1144                 for (i = 0; i < I40E_MAX_VEB; i++)
1145                         if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1146                                 break;
1147                 if (i >= I40E_MAX_VEB) {
1148                         dev_info(&pf->pdev->dev,
1149                                  "del relay: relay %d not found\n", veb_seid);
1150                         goto command_write_done;
1151                 }
1152
1153                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1154                 i40e_veb_release(pf->veb[i]);
1155
1156         } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
1157                 struct i40e_mac_filter *f;
1158                 int vlan = 0;
1159                 u8 ma[6];
1160                 int ret;
1161
1162                 cnt = sscanf(&cmd_buf[11],
1163                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1164                              &vsi_seid,
1165                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1166                              &vlan);
1167                 if (cnt == 7) {
1168                         vlan = 0;
1169                 } else if (cnt != 8) {
1170                         dev_info(&pf->pdev->dev,
1171                                  "add macaddr: bad command string, cnt=%d\n",
1172                                  cnt);
1173                         goto command_write_done;
1174                 }
1175
1176                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1177                 if (!vsi) {
1178                         dev_info(&pf->pdev->dev,
1179                                  "add macaddr: VSI %d not found\n", vsi_seid);
1180                         goto command_write_done;
1181                 }
1182
1183                 f = i40e_add_filter(vsi, ma, vlan, false, false);
1184                 ret = i40e_sync_vsi_filters(vsi);
1185                 if (f && !ret)
1186                         dev_info(&pf->pdev->dev,
1187                                  "add macaddr: %pM vlan=%d added to VSI %d\n",
1188                                  ma, vlan, vsi_seid);
1189                 else
1190                         dev_info(&pf->pdev->dev,
1191                                  "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1192                                  ma, vlan, vsi_seid, f, ret);
1193
1194         } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
1195                 int vlan = 0;
1196                 u8 ma[6];
1197                 int ret;
1198
1199                 cnt = sscanf(&cmd_buf[11],
1200                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1201                              &vsi_seid,
1202                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1203                              &vlan);
1204                 if (cnt == 7) {
1205                         vlan = 0;
1206                 } else if (cnt != 8) {
1207                         dev_info(&pf->pdev->dev,
1208                                  "del macaddr: bad command string, cnt=%d\n",
1209                                  cnt);
1210                         goto command_write_done;
1211                 }
1212
1213                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1214                 if (!vsi) {
1215                         dev_info(&pf->pdev->dev,
1216                                  "del macaddr: VSI %d not found\n", vsi_seid);
1217                         goto command_write_done;
1218                 }
1219
1220                 i40e_del_filter(vsi, ma, vlan, false, false);
1221                 ret = i40e_sync_vsi_filters(vsi);
1222                 if (!ret)
1223                         dev_info(&pf->pdev->dev,
1224                                  "del macaddr: %pM vlan=%d removed from VSI %d\n",
1225                                  ma, vlan, vsi_seid);
1226                 else
1227                         dev_info(&pf->pdev->dev,
1228                                  "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1229                                  ma, vlan, vsi_seid, ret);
1230
1231         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
1232                 i40e_status ret;
1233                 u16 vid;
1234                 int v;
1235
1236                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1237                 if (cnt != 2) {
1238                         dev_info(&pf->pdev->dev,
1239                                  "add pvid: bad command string, cnt=%d\n", cnt);
1240                         goto command_write_done;
1241                 }
1242
1243                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1244                 if (!vsi) {
1245                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1246                                  vsi_seid);
1247                         goto command_write_done;
1248                 }
1249
1250                 vid = (unsigned)v;
1251                 ret = i40e_vsi_add_pvid(vsi, vid);
1252                 if (!ret)
1253                         dev_info(&pf->pdev->dev,
1254                                  "add pvid: %d added to VSI %d\n",
1255                                  vid, vsi_seid);
1256                 else
1257                         dev_info(&pf->pdev->dev,
1258                                  "add pvid: %d to VSI %d failed, ret=%d\n",
1259                                  vid, vsi_seid, ret);
1260
1261         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1262
1263                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1264                 if (cnt != 1) {
1265                         dev_info(&pf->pdev->dev,
1266                                  "del pvid: bad command string, cnt=%d\n",
1267                                  cnt);
1268                         goto command_write_done;
1269                 }
1270
1271                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1272                 if (!vsi) {
1273                         dev_info(&pf->pdev->dev,
1274                                  "del pvid: VSI %d not found\n", vsi_seid);
1275                         goto command_write_done;
1276                 }
1277
1278                 i40e_vsi_remove_pvid(vsi);
1279                 dev_info(&pf->pdev->dev,
1280                          "del pvid: removed from VSI %d\n", vsi_seid);
1281
1282         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1283                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1284                         i40e_fetch_switch_configuration(pf, true);
1285                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1286                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1287                         if (cnt > 0)
1288                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1289                         else
1290                                 i40e_dbg_dump_vsi_no_seid(pf);
1291                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1292                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1293                         if (cnt > 0)
1294                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1295                         else
1296                                 i40e_dbg_dump_veb_all(pf);
1297                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1298                         int ring_id, desc_n;
1299                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
1300                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1301                                              &vsi_seid, &ring_id, &desc_n);
1302                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1303                                                    desc_n, pf, true);
1304                         } else if (strncmp(&cmd_buf[10], "tx", 2)
1305                                         == 0) {
1306                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1307                                              &vsi_seid, &ring_id, &desc_n);
1308                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1309                                                    desc_n, pf, false);
1310                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1311                                 i40e_dbg_dump_aq_desc(pf);
1312                         } else {
1313                                 dev_info(&pf->pdev->dev,
1314                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1315                                 dev_info(&pf->pdev->dev,
1316                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1317                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
1318                         }
1319                 } else if (strncmp(&cmd_buf[5], "stats", 5) == 0) {
1320                         dev_info(&pf->pdev->dev, "pf stats:\n");
1321                         i40e_dbg_dump_stats(pf, &pf->stats);
1322                         dev_info(&pf->pdev->dev, "pf stats_offsets:\n");
1323                         i40e_dbg_dump_stats(pf, &pf->stats_offsets);
1324                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1325                         dev_info(&pf->pdev->dev,
1326                                  "core reset count: %d\n", pf->corer_count);
1327                         dev_info(&pf->pdev->dev,
1328                                  "global reset count: %d\n", pf->globr_count);
1329                         dev_info(&pf->pdev->dev,
1330                                  "emp reset count: %d\n", pf->empr_count);
1331                         dev_info(&pf->pdev->dev,
1332                                  "pf reset count: %d\n", pf->pfr_count);
1333                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1334                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
1335                         struct i40e_dcbx_config *cfg =
1336                                                 &pf->hw.local_dcbx_config;
1337                         struct i40e_dcbx_config *r_cfg =
1338                                                 &pf->hw.remote_dcbx_config;
1339                         int i, ret;
1340
1341                         bw_data = kzalloc(sizeof(
1342                                     struct i40e_aqc_query_port_ets_config_resp),
1343                                           GFP_KERNEL);
1344                         if (!bw_data) {
1345                                 ret = -ENOMEM;
1346                                 goto command_write_done;
1347                         }
1348
1349                         ret = i40e_aq_query_port_ets_config(&pf->hw,
1350                                                             pf->mac_seid,
1351                                                             bw_data, NULL);
1352                         if (ret) {
1353                                 dev_info(&pf->pdev->dev,
1354                                          "Query Port ETS Config AQ command failed =0x%x\n",
1355                                          pf->hw.aq.asq_last_status);
1356                                 kfree(bw_data);
1357                                 bw_data = NULL;
1358                                 goto command_write_done;
1359                         }
1360                         dev_info(&pf->pdev->dev,
1361                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1362                                  bw_data->tc_valid_bits,
1363                                  bw_data->tc_strict_priority_bits,
1364                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1365                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1366                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1367                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1368                                          bw_data->tc_bw_share_credits[i],
1369                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1370                         }
1371
1372                         kfree(bw_data);
1373                         bw_data = NULL;
1374
1375                         dev_info(&pf->pdev->dev,
1376                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1377                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1378                                  cfg->etscfg.maxtcs);
1379                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1380                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1381                                          i, cfg->etscfg.prioritytable[i],
1382                                          cfg->etscfg.tcbwtable[i],
1383                                          cfg->etscfg.tsatable[i]);
1384                         }
1385                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1386                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1387                                          i, cfg->etsrec.prioritytable[i],
1388                                          cfg->etsrec.tcbwtable[i],
1389                                          cfg->etsrec.tsatable[i]);
1390                         }
1391                         dev_info(&pf->pdev->dev,
1392                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1393                                  cfg->pfc.willing, cfg->pfc.mbc,
1394                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1395                         dev_info(&pf->pdev->dev,
1396                                  "port app_table: num_apps=%d\n", cfg->numapps);
1397                         for (i = 0; i < cfg->numapps; i++) {
1398                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1399                                          i, cfg->app[i].priority,
1400                                          cfg->app[i].selector,
1401                                          cfg->app[i].protocolid);
1402                         }
1403                         /* Peer TLV DCBX data */
1404                         dev_info(&pf->pdev->dev,
1405                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1406                                  r_cfg->etscfg.willing,
1407                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1408                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1409                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1410                                          i, r_cfg->etscfg.prioritytable[i],
1411                                          r_cfg->etscfg.tcbwtable[i],
1412                                          r_cfg->etscfg.tsatable[i]);
1413                         }
1414                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1415                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1416                                          i, r_cfg->etsrec.prioritytable[i],
1417                                          r_cfg->etsrec.tcbwtable[i],
1418                                          r_cfg->etsrec.tsatable[i]);
1419                         }
1420                         dev_info(&pf->pdev->dev,
1421                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1422                                  r_cfg->pfc.willing,
1423                                  r_cfg->pfc.mbc,
1424                                  r_cfg->pfc.pfccap,
1425                                  r_cfg->pfc.pfcenable);
1426                         dev_info(&pf->pdev->dev,
1427                                  "remote port app_table: num_apps=%d\n",
1428                                  r_cfg->numapps);
1429                         for (i = 0; i < r_cfg->numapps; i++) {
1430                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1431                                          i, r_cfg->app[i].priority,
1432                                          r_cfg->app[i].selector,
1433                                          r_cfg->app[i].protocolid);
1434                         }
1435                 } else {
1436                         dev_info(&pf->pdev->dev,
1437                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1438                         dev_info(&pf->pdev->dev, "dump switch, dump vsi [seid] or\n");
1439                         dev_info(&pf->pdev->dev, "dump stats\n");
1440                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1441                         dev_info(&pf->pdev->dev, "dump port\n");
1442                         dev_info(&pf->pdev->dev,
1443                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1444                 }
1445
1446         } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1447                 u32 level;
1448                 cnt = sscanf(&cmd_buf[10], "%i", &level);
1449                 if (cnt) {
1450                         if (I40E_DEBUG_USER & level) {
1451                                 pf->hw.debug_mask = level;
1452                                 dev_info(&pf->pdev->dev,
1453                                          "set hw.debug_mask = 0x%08x\n",
1454                                          pf->hw.debug_mask);
1455                         }
1456                         pf->msg_enable = level;
1457                         dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1458                                  pf->msg_enable);
1459                 } else {
1460                         dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1461                                  pf->msg_enable);
1462                 }
1463         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1464                 dev_info(&pf->pdev->dev, "forcing PFR\n");
1465                 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
1466
1467         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1468                 dev_info(&pf->pdev->dev, "forcing CoreR\n");
1469                 i40e_do_reset(pf, (1 << __I40E_CORE_RESET_REQUESTED));
1470
1471         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1472                 dev_info(&pf->pdev->dev, "forcing GlobR\n");
1473                 i40e_do_reset(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED));
1474
1475         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1476                 u32 address;
1477                 u32 value;
1478                 cnt = sscanf(&cmd_buf[4], "%x", &address);
1479                 if (cnt != 1) {
1480                         dev_info(&pf->pdev->dev, "read <reg>\n");
1481                         goto command_write_done;
1482                 }
1483
1484                 /* check the range on address */
1485                 if (address >= I40E_MAX_REGISTER) {
1486                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n",
1487                                  address);
1488                         goto command_write_done;
1489                 }
1490
1491                 value = rd32(&pf->hw, address);
1492                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1493                          address, value);
1494
1495         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1496                 u32 address, value;
1497                 cnt = sscanf(&cmd_buf[5], "%x %x", &address, &value);
1498                 if (cnt != 2) {
1499                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1500                         goto command_write_done;
1501                 }
1502
1503                 /* check the range on address */
1504                 if (address >= I40E_MAX_REGISTER) {
1505                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n",
1506                                  address);
1507                         goto command_write_done;
1508                 }
1509                 wr32(&pf->hw, address, value);
1510                 value = rd32(&pf->hw, address);
1511                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1512                          address, value);
1513         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1514                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1515                         cnt = sscanf(&cmd_buf[15], "%d", &vsi_seid);
1516                         if (cnt == 0) {
1517                                 int i;
1518                                 for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
1519                                         i40e_vsi_reset_stats(pf->vsi[i]);
1520                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1521                         } else if (cnt == 1) {
1522                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1523                                 if (!vsi) {
1524                                         dev_info(&pf->pdev->dev,
1525                                                  "clear_stats vsi: bad vsi %d\n",
1526                                                  vsi_seid);
1527                                         goto command_write_done;
1528                                 }
1529                                 i40e_vsi_reset_stats(vsi);
1530                                 dev_info(&pf->pdev->dev,
1531                                          "vsi clear stats called for vsi %d\n",
1532                                          vsi_seid);
1533                         } else {
1534                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1535                         }
1536                 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) {
1537                         i40e_pf_reset_stats(pf);
1538                         dev_info(&pf->pdev->dev, "pf clear stats called\n");
1539                 } else {
1540                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n");
1541                 }
1542         } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1543                    (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
1544                 struct i40e_fdir_data fd_data;
1545                 u16 packet_len, i, j = 0;
1546                 char *asc_packet;
1547                 bool add = false;
1548                 int ret;
1549
1550                 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP,
1551                                      GFP_KERNEL);
1552                 if (!asc_packet)
1553                         goto command_write_done;
1554
1555                 fd_data.raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP,
1556                                              GFP_KERNEL);
1557
1558                 if (!fd_data.raw_packet) {
1559                         kfree(asc_packet);
1560                         asc_packet = NULL;
1561                         goto command_write_done;
1562                 }
1563
1564                 if (strncmp(cmd_buf, "add", 3) == 0)
1565                         add = true;
1566                 cnt = sscanf(&cmd_buf[13],
1567                              "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %512s",
1568                              &fd_data.q_index,
1569                              &fd_data.flex_off, &fd_data.pctype,
1570                              &fd_data.dest_vsi, &fd_data.dest_ctl,
1571                              &fd_data.fd_status, &fd_data.cnt_index,
1572                              &fd_data.fd_id, &packet_len, asc_packet);
1573                 if (cnt != 10) {
1574                         dev_info(&pf->pdev->dev,
1575                                  "program fd_filter: bad command string, cnt=%d\n",
1576                                  cnt);
1577                         kfree(asc_packet);
1578                         asc_packet = NULL;
1579                         kfree(fd_data.raw_packet);
1580                         goto command_write_done;
1581                 }
1582
1583                 /* fix packet length if user entered 0 */
1584                 if (packet_len == 0)
1585                         packet_len = I40E_FDIR_MAX_RAW_PACKET_LOOKUP;
1586
1587                 /* make sure to check the max as well */
1588                 packet_len = min_t(u16,
1589                                    packet_len, I40E_FDIR_MAX_RAW_PACKET_LOOKUP);
1590
1591                 dev_info(&pf->pdev->dev, "FD raw packet:\n");
1592                 for (i = 0; i < packet_len; i++) {
1593                         sscanf(&asc_packet[j], "%2hhx ",
1594                                &fd_data.raw_packet[i]);
1595                         j += 3;
1596                         snprintf(print_buf, 3, "%02x ", fd_data.raw_packet[i]);
1597                         print_buf += 3;
1598                         if ((i % 16) == 15) {
1599                                 snprintf(print_buf, 1, "\n");
1600                                 print_buf++;
1601                         }
1602                 }
1603                 dev_info(&pf->pdev->dev, "%s\n", print_buf_start);
1604                 ret = i40e_program_fdir_filter(&fd_data, pf, add);
1605                 if (!ret) {
1606                         dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1607                 } else {
1608                         dev_info(&pf->pdev->dev,
1609                                  "Filter command send failed %d\n", ret);
1610                 }
1611                 kfree(fd_data.raw_packet);
1612                 fd_data.raw_packet = NULL;
1613                 kfree(asc_packet);
1614                 asc_packet = NULL;
1615         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1616                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1617                         int ret;
1618                         ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1619                         if (ret) {
1620                                 dev_info(&pf->pdev->dev,
1621                                          "Stop LLDP AQ command failed =0x%x\n",
1622                                          pf->hw.aq.asq_last_status);
1623                                 goto command_write_done;
1624                         }
1625                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1626                         int ret;
1627                         ret = i40e_aq_start_lldp(&pf->hw, NULL);
1628                         if (ret) {
1629                                 dev_info(&pf->pdev->dev,
1630                                          "Start LLDP AQ command failed =0x%x\n",
1631                                          pf->hw.aq.asq_last_status);
1632                                 goto command_write_done;
1633                         }
1634                 } else if (strncmp(&cmd_buf[5],
1635                            "get local", 9) == 0) {
1636                         u16 llen, rlen;
1637                         int ret, i;
1638                         u8 *buff;
1639                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1640                         if (!buff)
1641                                 goto command_write_done;
1642
1643                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1644                                                    I40E_AQ_LLDP_MIB_LOCAL,
1645                                                    buff, I40E_LLDPDU_SIZE,
1646                                                    &llen, &rlen, NULL);
1647                         if (ret) {
1648                                 dev_info(&pf->pdev->dev,
1649                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1650                                          pf->hw.aq.asq_last_status);
1651                                 kfree(buff);
1652                                 buff = NULL;
1653                                 goto command_write_done;
1654                         }
1655                         dev_info(&pf->pdev->dev,
1656                                  "Get LLDP MIB (local) AQ buffer written back:\n");
1657                         for (i = 0; i < I40E_LLDPDU_SIZE; i++) {
1658                                 snprintf(print_buf, 3, "%02x ", buff[i]);
1659                                 print_buf += 3;
1660                                 if ((i % 16) == 15) {
1661                                         snprintf(print_buf, 1, "\n");
1662                                         print_buf++;
1663                                 }
1664                         }
1665                         dev_info(&pf->pdev->dev, "%s\n", print_buf_start);
1666                         kfree(buff);
1667                         buff = NULL;
1668                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1669                         u16 llen, rlen;
1670                         int ret, i;
1671                         u8 *buff;
1672                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1673                         if (!buff)
1674                                 goto command_write_done;
1675
1676                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1677                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1678                                         I40E_AQ_LLDP_MIB_LOCAL,
1679                                         buff, I40E_LLDPDU_SIZE,
1680                                         &llen, &rlen, NULL);
1681                         if (ret) {
1682                                 dev_info(&pf->pdev->dev,
1683                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1684                                          pf->hw.aq.asq_last_status);
1685                                 kfree(buff);
1686                                 buff = NULL;
1687                                 goto command_write_done;
1688                         }
1689                         dev_info(&pf->pdev->dev,
1690                                  "Get LLDP MIB (remote) AQ buffer written back:\n");
1691                         for (i = 0; i < I40E_LLDPDU_SIZE; i++) {
1692                                 snprintf(print_buf, 3, "%02x ", buff[i]);
1693                                 print_buf += 3;
1694                                 if ((i % 16) == 15) {
1695                                         snprintf(print_buf, 1, "\n");
1696                                         print_buf++;
1697                                 }
1698                         }
1699                         dev_info(&pf->pdev->dev, "%s\n", print_buf_start);
1700                         kfree(buff);
1701                         buff = NULL;
1702                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1703                         int ret;
1704                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1705                                                                 true, NULL);
1706                         if (ret) {
1707                                 dev_info(&pf->pdev->dev,
1708                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1709                                          pf->hw.aq.asq_last_status);
1710                                 goto command_write_done;
1711                         }
1712                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1713                         int ret;
1714                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1715                                                                 false, NULL);
1716                         if (ret) {
1717                                 dev_info(&pf->pdev->dev,
1718                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1719                                          pf->hw.aq.asq_last_status);
1720                                 goto command_write_done;
1721                         }
1722                 }
1723         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1724                 u16 buffer_len, i, bytes;
1725                 u16 module;
1726                 u32 offset;
1727                 u16 *buff;
1728                 int ret;
1729
1730                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1731                              &module, &offset, &buffer_len);
1732                 if (cnt == 0) {
1733                         module = 0;
1734                         offset = 0;
1735                         buffer_len = 0;
1736                 } else if (cnt == 1) {
1737                         offset = 0;
1738                         buffer_len = 0;
1739                 } else if (cnt == 2) {
1740                         buffer_len = 0;
1741                 } else if (cnt > 3) {
1742                         dev_info(&pf->pdev->dev,
1743                                  "nvm read: bad command string, cnt=%d\n", cnt);
1744                         goto command_write_done;
1745                 }
1746
1747                 /* set the max length */
1748                 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1749
1750                 bytes = 2 * buffer_len;
1751
1752                 /* read at least 1k bytes, no more than 4kB */
1753                 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1754                 buff = kzalloc(bytes, GFP_KERNEL);
1755                 if (!buff)
1756                         goto command_write_done;
1757
1758                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1759                 if (ret) {
1760                         dev_info(&pf->pdev->dev,
1761                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1762                                  ret, pf->hw.aq.asq_last_status);
1763                         kfree(buff);
1764                         goto command_write_done;
1765                 }
1766
1767                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1768                                        bytes, (u8 *)buff, true, NULL);
1769                 i40e_release_nvm(&pf->hw);
1770                 if (ret) {
1771                         dev_info(&pf->pdev->dev,
1772                                  "Read NVM AQ failed err=%d status=0x%x\n",
1773                                  ret, pf->hw.aq.asq_last_status);
1774                 } else {
1775                         dev_info(&pf->pdev->dev,
1776                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1777                                  module, offset, buffer_len);
1778                         for (i = 0; i < buffer_len; i++) {
1779                                 if ((i % 16) == 0) {
1780                                         snprintf(print_buf, 11, "\n0x%08x: ",
1781                                                  offset + i);
1782                                         print_buf += 11;
1783                                 }
1784                                 snprintf(print_buf, 5, "%04x ", buff[i]);
1785                                 print_buf += 5;
1786                         }
1787                         dev_info(&pf->pdev->dev, "%s\n", print_buf_start);
1788                 }
1789                 kfree(buff);
1790                 buff = NULL;
1791         } else {
1792                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1793                 dev_info(&pf->pdev->dev, "available commands\n");
1794                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1795                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1796                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1797                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1798                 dev_info(&pf->pdev->dev, "  add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1799                 dev_info(&pf->pdev->dev, "  del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1800                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1801                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1802                 dev_info(&pf->pdev->dev, "  dump switch\n");
1803                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1804                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1805                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1806                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1807                 dev_info(&pf->pdev->dev, "  dump stats\n");
1808                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1809                 dev_info(&pf->pdev->dev, "  msg_enable [level]\n");
1810                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1811                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1812                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1813                 dev_info(&pf->pdev->dev, "  clear_stats pf\n");
1814                 dev_info(&pf->pdev->dev, "  pfr\n");
1815                 dev_info(&pf->pdev->dev, "  corer\n");
1816                 dev_info(&pf->pdev->dev, "  globr\n");
1817                 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");
1818                 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");
1819                 dev_info(&pf->pdev->dev, "  lldp start\n");
1820                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1821                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1822                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1823                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1824                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1825                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1826         }
1827
1828 command_write_done:
1829         kfree(cmd_buf);
1830         cmd_buf = NULL;
1831         kfree(print_buf_start);
1832         print_buf = NULL;
1833         print_buf_start = NULL;
1834         return count;
1835 }
1836
1837 static const struct file_operations i40e_dbg_command_fops = {
1838         .owner = THIS_MODULE,
1839         .open =  simple_open,
1840         .read =  i40e_dbg_command_read,
1841         .write = i40e_dbg_command_write,
1842 };
1843
1844 /**************************************************************
1845  * netdev_ops
1846  * The netdev_ops entry in debugfs is for giving the driver commands
1847  * to be executed from the netdev operations.
1848  **************************************************************/
1849 static char i40e_dbg_netdev_ops_buf[256] = "hello world";
1850
1851 /**
1852  * i40e_dbg_netdev_ops - read for netdev_ops datum
1853  * @filp: the opened file
1854  * @buffer: where to write the data for the user to read
1855  * @count: the size of the user's buffer
1856  * @ppos: file position offset
1857  **/
1858 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1859                                         size_t count, loff_t *ppos)
1860 {
1861         struct i40e_pf *pf = filp->private_data;
1862         int bytes_not_copied;
1863         int buf_size = 256;
1864         char *buf;
1865         int len;
1866
1867         /* don't allow partal reads */
1868         if (*ppos != 0)
1869                 return 0;
1870         if (count < buf_size)
1871                 return -ENOSPC;
1872
1873         buf = kzalloc(buf_size, GFP_KERNEL);
1874         if (!buf)
1875                 return -ENOSPC;
1876
1877         len = snprintf(buf, buf_size, "%s: %s\n",
1878                        pf->vsi[pf->lan_vsi]->netdev->name,
1879                        i40e_dbg_netdev_ops_buf);
1880
1881         bytes_not_copied = copy_to_user(buffer, buf, len);
1882         kfree(buf);
1883
1884         if (bytes_not_copied < 0)
1885                 return bytes_not_copied;
1886
1887         *ppos = len;
1888         return len;
1889 }
1890
1891 /**
1892  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1893  * @filp: the opened file
1894  * @buffer: where to find the user's data
1895  * @count: the length of the user's data
1896  * @ppos: file position offset
1897  **/
1898 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1899                                          const char __user *buffer,
1900                                          size_t count, loff_t *ppos)
1901 {
1902         struct i40e_pf *pf = filp->private_data;
1903         int bytes_not_copied;
1904         struct i40e_vsi *vsi;
1905         char *buf_tmp;
1906         int vsi_seid;
1907         int i, cnt;
1908
1909         /* don't allow partial writes */
1910         if (*ppos != 0)
1911                 return 0;
1912         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1913                 return -ENOSPC;
1914
1915         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1916         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1917                                           buffer, count);
1918         if (bytes_not_copied < 0)
1919                 return bytes_not_copied;
1920         else if (bytes_not_copied > 0)
1921                 count -= bytes_not_copied;
1922         i40e_dbg_netdev_ops_buf[count] = '\0';
1923
1924         buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
1925         if (buf_tmp) {
1926                 *buf_tmp = '\0';
1927                 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
1928         }
1929
1930         if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
1931                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1932                 if (cnt != 1) {
1933                         dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
1934                         goto netdev_ops_write_done;
1935                 }
1936                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1937                 if (!vsi) {
1938                         dev_info(&pf->pdev->dev,
1939                                  "tx_timeout: VSI %d not found\n", vsi_seid);
1940                         goto netdev_ops_write_done;
1941                 }
1942                 if (rtnl_trylock()) {
1943                         vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
1944                         rtnl_unlock();
1945                         dev_info(&pf->pdev->dev, "tx_timeout called\n");
1946                 } else {
1947                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1948                 }
1949         } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1950                 int mtu;
1951                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1952                              &vsi_seid, &mtu);
1953                 if (cnt != 2) {
1954                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1955                         goto netdev_ops_write_done;
1956                 }
1957                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1958                 if (!vsi) {
1959                         dev_info(&pf->pdev->dev,
1960                                  "change_mtu: VSI %d not found\n", vsi_seid);
1961                         goto netdev_ops_write_done;
1962                 }
1963                 if (rtnl_trylock()) {
1964                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
1965                                                                 mtu);
1966                         rtnl_unlock();
1967                         dev_info(&pf->pdev->dev, "change_mtu called\n");
1968                 } else {
1969                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1970                 }
1971
1972         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1973                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1974                 if (cnt != 1) {
1975                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1976                         goto netdev_ops_write_done;
1977                 }
1978                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1979                 if (!vsi) {
1980                         dev_info(&pf->pdev->dev,
1981                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
1982                         goto netdev_ops_write_done;
1983                 }
1984                 if (rtnl_trylock()) {
1985                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1986                         rtnl_unlock();
1987                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1988                 } else {
1989                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1990                 }
1991
1992         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1993                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1994                 if (cnt != 1) {
1995                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1996                         goto netdev_ops_write_done;
1997                 }
1998                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1999                 if (!vsi) {
2000                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
2001                                  vsi_seid);
2002                         goto netdev_ops_write_done;
2003                 }
2004                 for (i = 0; i < vsi->num_q_vectors; i++)
2005                         napi_schedule(&vsi->q_vectors[i]->napi);
2006                 dev_info(&pf->pdev->dev, "napi called\n");
2007         } else {
2008                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
2009                          i40e_dbg_netdev_ops_buf);
2010                 dev_info(&pf->pdev->dev, "available commands\n");
2011                 dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
2012                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
2013                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
2014                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
2015         }
2016 netdev_ops_write_done:
2017         return count;
2018 }
2019
2020 static const struct file_operations i40e_dbg_netdev_ops_fops = {
2021         .owner = THIS_MODULE,
2022         .open = simple_open,
2023         .read = i40e_dbg_netdev_ops_read,
2024         .write = i40e_dbg_netdev_ops_write,
2025 };
2026
2027 /**
2028  * i40e_dbg_pf_init - setup the debugfs directory for the pf
2029  * @pf: the pf that is starting up
2030  **/
2031 void i40e_dbg_pf_init(struct i40e_pf *pf)
2032 {
2033         struct dentry *pfile;
2034         const char *name = pci_name(pf->pdev);
2035         const struct device *dev = &pf->pdev->dev;
2036
2037         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
2038         if (!pf->i40e_dbg_pf)
2039                 return;
2040
2041         pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
2042                                     &i40e_dbg_command_fops);
2043         if (!pfile)
2044                 goto create_failed;
2045
2046         pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2047                                     &i40e_dbg_dump_fops);
2048         if (!pfile)
2049                 goto create_failed;
2050
2051         pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
2052                                     &i40e_dbg_netdev_ops_fops);
2053         if (!pfile)
2054                 goto create_failed;
2055
2056         return;
2057
2058 create_failed:
2059         dev_info(dev, "debugfs dir/file for %s failed\n", name);
2060         debugfs_remove_recursive(pf->i40e_dbg_pf);
2061         return;
2062 }
2063
2064 /**
2065  * i40e_dbg_pf_exit - clear out the pf's debugfs entries
2066  * @pf: the pf that is stopping
2067  **/
2068 void i40e_dbg_pf_exit(struct i40e_pf *pf)
2069 {
2070         debugfs_remove_recursive(pf->i40e_dbg_pf);
2071         pf->i40e_dbg_pf = NULL;
2072
2073         kfree(i40e_dbg_dump_buf);
2074         i40e_dbg_dump_buf = NULL;
2075 }
2076
2077 /**
2078  * i40e_dbg_init - start up debugfs for the driver
2079  **/
2080 void i40e_dbg_init(void)
2081 {
2082         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2083         if (!i40e_dbg_root)
2084                 pr_info("init of debugfs failed\n");
2085 }
2086
2087 /**
2088  * i40e_dbg_exit - clean out the driver's debugfs entries
2089  **/
2090 void i40e_dbg_exit(void)
2091 {
2092         debugfs_remove_recursive(i40e_dbg_root);
2093         i40e_dbg_root = NULL;
2094 }
2095
2096 #endif /* CONFIG_DEBUG_FS */