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

   1 /*******************************************************************************
   2  *
   3  * Intel Ethernet Controller XL710 Family Linux Driver
   4  * Copyright(c) 2013 - 2016 Intel Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * The full GNU General Public License is included in this distribution in
  19  * the file called "COPYING".
  20  *
  21  * Contact Information:
  22  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  ******************************************************************************/
  26
  27 #ifdef CONFIG_DEBUG_FS
  28
  29 #include <linux/fs.h>
  30 #include <linux/debugfs.h>
  31
  32 #include "i40e.h"
  33
  34 static struct dentry *i40e_dbg_root;
  35
  36 /**
  37  * i40e_dbg_find_vsi - searches for the vsi with the given seid
  38  * @pf - the PF structure to search for the vsi
  39  * @seid - seid of the vsi it is searching for
  40  **/
  41 static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
  42 {
  43         int i;
  44
  45         if (seid < 0)
  46                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
  47         else
  48                 for (i = 0; i < pf->num_alloc_vsi; i++)
  49                         if (pf->vsi[i] && (pf->vsi[i]->seid == seid))
  50                                 return pf->vsi[i];
  51
  52         return NULL;
  53 }
  54
  55 /**
  56  * i40e_dbg_find_veb - searches for the veb with the given seid
  57  * @pf - the PF structure to search for the veb
  58  * @seid - seid of the veb it is searching for
  59  **/
  60 static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
  61 {
  62         int i;
  63
  64         if ((seid < I40E_BASE_VEB_SEID) ||
  65             (seid > (I40E_BASE_VEB_SEID + I40E_MAX_VEB)))
  66                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
  67         else
  68                 for (i = 0; i < I40E_MAX_VEB; i++)
  69                         if (pf->veb[i] && pf->veb[i]->seid == seid)
  70                                 return pf->veb[i];
  71         return NULL;
  72 }
  73
  74 /**************************************************************
  75  * dump
  76  * The dump entry in debugfs is for getting a data snapshow of
  77  * the driver's current configuration and runtime details.
  78  * When the filesystem entry is written, a snapshot is taken.
  79  * When the entry is read, the most recent snapshot data is dumped.
  80  **************************************************************/
  81 static char *i40e_dbg_dump_buf;
  82 static ssize_t i40e_dbg_dump_data_len;
  83 static ssize_t i40e_dbg_dump_buffer_len;
  84
  85 /**
  86  * i40e_dbg_dump_read - read the dump data
  87  * @filp: the opened file
  88  * @buffer: where to write the data for the user to read
  89  * @count: the size of the user's buffer
  90  * @ppos: file position offset
  91  **/
  92 static ssize_t i40e_dbg_dump_read(struct file *filp, char __user *buffer,
  93                                   size_t count, loff_t *ppos)
  94 {
  95         int bytes_not_copied;
  96         int len;
  97
  98         /* is *ppos bigger than the available data? */
  99         if (*ppos >= i40e_dbg_dump_data_len || !i40e_dbg_dump_buf)
 100                 return 0;
 101
 102         /* be sure to not read beyond the end of available data */
 103         len = min_t(int, count, (i40e_dbg_dump_data_len - *ppos));
 104
 105         bytes_not_copied = copy_to_user(buffer, &i40e_dbg_dump_buf[*ppos], len);
 106         if (bytes_not_copied)
 107                 return -EFAULT;
 108
 109         *ppos += len;
 110         return len;
 111 }
 112
 113 /**
 114  * i40e_dbg_prep_dump_buf
 115  * @pf: the PF we're working with
 116  * @buflen: the desired buffer length
 117  *
 118  * Return positive if success, 0 if failed
 119  **/
 120 static int i40e_dbg_prep_dump_buf(struct i40e_pf *pf, int buflen)
 121 {
 122         /* if not already big enough, prep for re alloc */
 123         if (i40e_dbg_dump_buffer_len && i40e_dbg_dump_buffer_len < buflen) {
 124                 kfree(i40e_dbg_dump_buf);
 125                 i40e_dbg_dump_buffer_len = 0;
 126                 i40e_dbg_dump_buf = NULL;
 127         }
 128
 129         /* get a new buffer if needed */
 130         if (!i40e_dbg_dump_buf) {
 131                 i40e_dbg_dump_buf = kzalloc(buflen, GFP_KERNEL);
 132                 if (i40e_dbg_dump_buf != NULL)
 133                         i40e_dbg_dump_buffer_len = buflen;
 134         }
 135
 136         return i40e_dbg_dump_buffer_len;
 137 }
 138
 139 /**
 140  * i40e_dbg_dump_write - trigger a datadump snapshot
 141  * @filp: the opened file
 142  * @buffer: where to find the user's data
 143  * @count: the length of the user's data
 144  * @ppos: file position offset
 145  *
 146  * Any write clears the stats
 147  **/
 148 static ssize_t i40e_dbg_dump_write(struct file *filp,
 149                                    const char __user *buffer,
 150                                    size_t count, loff_t *ppos)
 151 {
 152         struct i40e_pf *pf = filp->private_data;
 153         bool seid_found = false;
 154         long seid = -1;
 155         int buflen = 0;
 156         int i, ret;
 157         int len;
 158         u8 *p;
 159
 160         /* don't allow partial writes */
 161         if (*ppos != 0)
 162                 return 0;
 163
 164         /* decode the SEID given to be dumped */
 165         ret = kstrtol_from_user(buffer, count, 0, &seid);
 166
 167         if (ret) {
 168                 dev_info(&pf->pdev->dev, "bad seid value\n");
 169         } else if (seid == 0) {
 170                 seid_found = true;
 171
 172                 kfree(i40e_dbg_dump_buf);
 173                 i40e_dbg_dump_buffer_len = 0;
 174                 i40e_dbg_dump_data_len = 0;
 175                 i40e_dbg_dump_buf = NULL;
 176                 dev_info(&pf->pdev->dev, "debug buffer freed\n");
 177
 178         } else if (seid == pf->pf_seid || seid == 1) {
 179                 seid_found = true;
 180
 181                 buflen = sizeof(struct i40e_pf);
 182                 buflen += (sizeof(struct i40e_aq_desc)
 183                      * (pf->hw.aq.num_arq_entries + pf->hw.aq.num_asq_entries));
 184
 185                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 186                         p = i40e_dbg_dump_buf;
 187
 188                         /* avoid use of memcpy here due to sparse warning
 189                          * about copy size.
 190                          */
 191                         *((struct i40e_pf *)p) = *pf;
 192                         p += sizeof(struct i40e_pf);
 193
 194                         len = (sizeof(struct i40e_aq_desc)
 195                                         * pf->hw.aq.num_asq_entries);
 196                         memcpy(p, pf->hw.aq.asq.desc_buf.va, len);
 197                         p += len;
 198
 199                         len = (sizeof(struct i40e_aq_desc)
 200                                         * pf->hw.aq.num_arq_entries);
 201                         memcpy(p, pf->hw.aq.arq.desc_buf.va, len);
 202                         p += len;
 203
 204                         i40e_dbg_dump_data_len = buflen;
 205                         dev_info(&pf->pdev->dev,
 206                                  "PF seid %ld dumped %d bytes\n",
 207                                  seid, (int)i40e_dbg_dump_data_len);
 208                 }
 209         } else if (seid >= I40E_BASE_VSI_SEID) {
 210                 struct i40e_vsi *vsi = NULL;
 211                 struct i40e_mac_filter *f;
 212                 int filter_count = 0;
 213
 214                 mutex_lock(&pf->switch_mutex);
 215                 vsi = i40e_dbg_find_vsi(pf, seid);
 216                 if (!vsi) {
 217                         mutex_unlock(&pf->switch_mutex);
 218                         goto write_exit;
 219                 }
 220
 221                 buflen = sizeof(struct i40e_vsi);
 222                 buflen += sizeof(struct i40e_q_vector) * vsi->num_q_vectors;
 223                 buflen += sizeof(struct i40e_ring) * 2 * vsi->num_queue_pairs;
 224                 buflen += sizeof(struct i40e_tx_buffer) * vsi->num_queue_pairs;
 225                 buflen += sizeof(struct i40e_rx_buffer) * vsi->num_queue_pairs;
 226                 list_for_each_entry(f, &vsi->mac_filter_list, list)
 227                         filter_count++;
 228                 buflen += sizeof(struct i40e_mac_filter) * filter_count;
 229
 230                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 231                         p = i40e_dbg_dump_buf;
 232                         seid_found = true;
 233
 234                         len = sizeof(struct i40e_vsi);
 235                         memcpy(p, vsi, len);
 236                         p += len;
 237
 238                         if (vsi->num_q_vectors) {
 239                                 len = (sizeof(struct i40e_q_vector)
 240                                         * vsi->num_q_vectors);
 241                                 memcpy(p, vsi->q_vectors, len);
 242                                 p += len;
 243                         }
 244
 245                         if (vsi->num_queue_pairs) {
 246                                 len = (sizeof(struct i40e_ring) *
 247                                       vsi->num_queue_pairs);
 248                                 memcpy(p, vsi->tx_rings, len);
 249                                 p += len;
 250                                 memcpy(p, vsi->rx_rings, len);
 251                                 p += len;
 252                         }
 253
 254                         if (vsi->tx_rings[0]) {
 255                                 len = sizeof(struct i40e_tx_buffer);
 256                                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 257                                         memcpy(p, vsi->tx_rings[i]->tx_bi, len);
 258                                         p += len;
 259                                 }
 260                                 len = sizeof(struct i40e_rx_buffer);
 261                                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 262                                         memcpy(p, vsi->rx_rings[i]->rx_bi, len);
 263                                         p += len;
 264                                 }
 265                         }
 266
 267                         /* macvlan filter list */
 268                         len = sizeof(struct i40e_mac_filter);
 269                         list_for_each_entry(f, &vsi->mac_filter_list, list) {
 270                                 memcpy(p, f, len);
 271                                 p += len;
 272                         }
 273
 274                         i40e_dbg_dump_data_len = buflen;
 275                         dev_info(&pf->pdev->dev,
 276                                  "VSI seid %ld dumped %d bytes\n",
 277                                  seid, (int)i40e_dbg_dump_data_len);
 278                 }
 279                 mutex_unlock(&pf->switch_mutex);
 280         } else if (seid >= I40E_BASE_VEB_SEID) {
 281                 struct i40e_veb *veb = NULL;
 282
 283                 mutex_lock(&pf->switch_mutex);
 284                 veb = i40e_dbg_find_veb(pf, seid);
 285                 if (!veb) {
 286                         mutex_unlock(&pf->switch_mutex);
 287                         goto write_exit;
 288                 }
 289
 290                 buflen = sizeof(struct i40e_veb);
 291                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 292                         seid_found = true;
 293                         memcpy(i40e_dbg_dump_buf, veb, buflen);
 294                         i40e_dbg_dump_data_len = buflen;
 295                         dev_info(&pf->pdev->dev,
 296                                  "VEB seid %ld dumped %d bytes\n",
 297                                  seid, (int)i40e_dbg_dump_data_len);
 298                 }
 299                 mutex_unlock(&pf->switch_mutex);
 300         }
 301
 302 write_exit:
 303         if (!seid_found)
 304                 dev_info(&pf->pdev->dev, "unknown seid %ld\n", seid);
 305
 306         return count;
 307 }
 308
 309 static const struct file_operations i40e_dbg_dump_fops = {
 310         .owner = THIS_MODULE,
 311         .open =  simple_open,
 312         .read =  i40e_dbg_dump_read,
 313         .write = i40e_dbg_dump_write,
 314 };
 315
 316 /**************************************************************
 317  * command
 318  * The command entry in debugfs is for giving the driver commands
 319  * to be executed - these may be for changing the internal switch
 320  * setup, adding or removing filters, or other things.  Many of
 321  * these will be useful for some forms of unit testing.
 322  **************************************************************/
 323 static char i40e_dbg_command_buf[256] = "";
 324
 325 /**
 326  * i40e_dbg_command_read - read for command datum
 327  * @filp: the opened file
 328  * @buffer: where to write the data for the user to read
 329  * @count: the size of the user's buffer
 330  * @ppos: file position offset
 331  **/
 332 static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
 333                                      size_t count, loff_t *ppos)
 334 {
 335         struct i40e_pf *pf = filp->private_data;
 336         int bytes_not_copied;
 337         int buf_size = 256;
 338         char *buf;
 339         int len;
 340
 341         /* don't allow partial reads */
 342         if (*ppos != 0)
 343                 return 0;
 344         if (count < buf_size)
 345                 return -ENOSPC;
 346
 347         buf = kzalloc(buf_size, GFP_KERNEL);
 348         if (!buf)
 349                 return -ENOSPC;
 350
 351         len = snprintf(buf, buf_size, "%s: %s\n",
 352                        pf->vsi[pf->lan_vsi]->netdev->name,
 353                        i40e_dbg_command_buf);
 354
 355         bytes_not_copied = copy_to_user(buffer, buf, len);
 356         kfree(buf);
 357
 358         if (bytes_not_copied)
 359                 return -EFAULT;
 360
 361         *ppos = len;
 362         return len;
 363 }
 364
 365 /**
 366  * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
 367  * @pf: the i40e_pf created in command write
 368  * @seid: the seid the user put in
 369  **/
 370 static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 371 {
 372         struct rtnl_link_stats64 *nstat;
 373         struct i40e_mac_filter *f;
 374         struct i40e_vsi *vsi;
 375         int i;
 376
 377         vsi = i40e_dbg_find_vsi(pf, seid);
 378         if (!vsi) {
 379                 dev_info(&pf->pdev->dev,
 380                          "dump %d: seid not found\n", seid);
 381                 return;
 382         }
 383         dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
 384         if (vsi->netdev) {
 385                 struct net_device *nd = vsi->netdev;
 386
 387                 dev_info(&pf->pdev->dev, "    netdev: name = %s, state = %lu, flags = 0x%08x\n",
 388                          nd->name, nd->state, nd->flags);
 389                 dev_info(&pf->pdev->dev, "        features      = 0x%08lx\n",
 390                          (unsigned long int)nd->features);
 391                 dev_info(&pf->pdev->dev, "        hw_features   = 0x%08lx\n",
 392                          (unsigned long int)nd->hw_features);
 393                 dev_info(&pf->pdev->dev, "        vlan_features = 0x%08lx\n",
 394                          (unsigned long int)nd->vlan_features);
 395         }
 396         if (vsi->active_vlans)
 397                 dev_info(&pf->pdev->dev,
 398                          "    vlgrp: & = %p\n", vsi->active_vlans);
 399         dev_info(&pf->pdev->dev,
 400                  "    state = %li flags = 0x%08lx, netdev_registered = %i, current_netdev_flags = 0x%04x\n",
 401                  vsi->state, vsi->flags,
 402                  vsi->netdev_registered, vsi->current_netdev_flags);
 403         if (vsi == pf->vsi[pf->lan_vsi])
 404                 dev_info(&pf->pdev->dev, "    MAC address: %pM SAN MAC: %pM Port MAC: %pM\n",
 405                          pf->hw.mac.addr,
 406                          pf->hw.mac.san_addr,
 407                          pf->hw.mac.port_addr);
 408         list_for_each_entry(f, &vsi->mac_filter_list, list) {
 409                 dev_info(&pf->pdev->dev,
 410                          "    mac_filter_list: %pM vid=%d, is_netdev=%d is_vf=%d counter=%d\n",
 411                          f->macaddr, f->vlan, f->is_netdev, f->is_vf,
 412                          f->counter);
 413         }
 414         nstat = i40e_get_vsi_stats_struct(vsi);
 415         dev_info(&pf->pdev->dev,
 416                  "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 417                  (unsigned long int)nstat->rx_packets,
 418                  (unsigned long int)nstat->rx_bytes,
 419                  (unsigned long int)nstat->rx_errors,
 420                  (unsigned long int)nstat->rx_dropped);
 421         dev_info(&pf->pdev->dev,
 422                  "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 423                  (unsigned long int)nstat->tx_packets,
 424                  (unsigned long int)nstat->tx_bytes,
 425                  (unsigned long int)nstat->tx_errors,
 426                  (unsigned long int)nstat->tx_dropped);
 427         dev_info(&pf->pdev->dev,
 428                  "    net_stats: multicast = %lu, collisions = %lu\n",
 429                  (unsigned long int)nstat->multicast,
 430                  (unsigned long int)nstat->collisions);
 431         dev_info(&pf->pdev->dev,
 432                  "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 433                  (unsigned long int)nstat->rx_length_errors,
 434                  (unsigned long int)nstat->rx_over_errors,
 435                  (unsigned long int)nstat->rx_crc_errors);
 436         dev_info(&pf->pdev->dev,
 437                  "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 438                  (unsigned long int)nstat->rx_frame_errors,
 439                  (unsigned long int)nstat->rx_fifo_errors,
 440                  (unsigned long int)nstat->rx_missed_errors);
 441         dev_info(&pf->pdev->dev,
 442                  "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 443                  (unsigned long int)nstat->tx_aborted_errors,
 444                  (unsigned long int)nstat->tx_carrier_errors,
 445                  (unsigned long int)nstat->tx_fifo_errors);
 446         dev_info(&pf->pdev->dev,
 447                  "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 448                  (unsigned long int)nstat->tx_heartbeat_errors,
 449                  (unsigned long int)nstat->tx_window_errors);
 450         dev_info(&pf->pdev->dev,
 451                  "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
 452                  (unsigned long int)nstat->rx_compressed,
 453                  (unsigned long int)nstat->tx_compressed);
 454         dev_info(&pf->pdev->dev,
 455                  "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 456                  (unsigned long int)vsi->net_stats_offsets.rx_packets,
 457                  (unsigned long int)vsi->net_stats_offsets.rx_bytes,
 458                  (unsigned long int)vsi->net_stats_offsets.rx_errors,
 459                  (unsigned long int)vsi->net_stats_offsets.rx_dropped);
 460         dev_info(&pf->pdev->dev,
 461                  "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 462                  (unsigned long int)vsi->net_stats_offsets.tx_packets,
 463                  (unsigned long int)vsi->net_stats_offsets.tx_bytes,
 464                  (unsigned long int)vsi->net_stats_offsets.tx_errors,
 465                  (unsigned long int)vsi->net_stats_offsets.tx_dropped);
 466         dev_info(&pf->pdev->dev,
 467                  "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
 468                  (unsigned long int)vsi->net_stats_offsets.multicast,
 469                  (unsigned long int)vsi->net_stats_offsets.collisions);
 470         dev_info(&pf->pdev->dev,
 471                  "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 472                  (unsigned long int)vsi->net_stats_offsets.rx_length_errors,
 473                  (unsigned long int)vsi->net_stats_offsets.rx_over_errors,
 474                  (unsigned long int)vsi->net_stats_offsets.rx_crc_errors);
 475         dev_info(&pf->pdev->dev,
 476                  "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 477                  (unsigned long int)vsi->net_stats_offsets.rx_frame_errors,
 478                  (unsigned long int)vsi->net_stats_offsets.rx_fifo_errors,
 479                  (unsigned long int)vsi->net_stats_offsets.rx_missed_errors);
 480         dev_info(&pf->pdev->dev,
 481                  "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 482                  (unsigned long int)vsi->net_stats_offsets.tx_aborted_errors,
 483                  (unsigned long int)vsi->net_stats_offsets.tx_carrier_errors,
 484                  (unsigned long int)vsi->net_stats_offsets.tx_fifo_errors);
 485         dev_info(&pf->pdev->dev,
 486                  "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 487                  (unsigned long int)vsi->net_stats_offsets.tx_heartbeat_errors,
 488                  (unsigned long int)vsi->net_stats_offsets.tx_window_errors);
 489         dev_info(&pf->pdev->dev,
 490                  "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
 491                  (unsigned long int)vsi->net_stats_offsets.rx_compressed,
 492                  (unsigned long int)vsi->net_stats_offsets.tx_compressed);
 493         dev_info(&pf->pdev->dev,
 494                  "    tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n",
 495                  vsi->tx_restart, vsi->tx_busy,
 496                  vsi->rx_buf_failed, vsi->rx_page_failed);
 497         rcu_read_lock();
 498         for (i = 0; i < vsi->num_queue_pairs; i++) {
 499                 struct i40e_ring *rx_ring = ACCESS_ONCE(vsi->rx_rings[i]);
 500
 501                 if (!rx_ring)
 502                         continue;
 503
 504                 dev_info(&pf->pdev->dev,
 505                          "    rx_rings[%i]: desc = %p\n",
 506                          i, rx_ring->desc);
 507                 dev_info(&pf->pdev->dev,
 508                          "    rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n",
 509                          i, rx_ring->dev,
 510                          rx_ring->netdev,
 511                          rx_ring->rx_bi);
 512                 dev_info(&pf->pdev->dev,
 513                          "    rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 514                          i, rx_ring->state,
 515                          rx_ring->queue_index,
 516                          rx_ring->reg_idx);
 517                 dev_info(&pf->pdev->dev,
 518                          "    rx_rings[%i]: rx_hdr_len = %d, rx_buf_len = %d, dtype = %d\n",
 519                          i, rx_ring->rx_hdr_len,
 520                          rx_ring->rx_buf_len,
 521                          rx_ring->dtype);
 522                 dev_info(&pf->pdev->dev,
 523                          "    rx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 524                          i, rx_ring->hsplit,
 525                          rx_ring->next_to_use,
 526                          rx_ring->next_to_clean,
 527                          rx_ring->ring_active);
 528                 dev_info(&pf->pdev->dev,
 529                          "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
 530                          i, rx_ring->stats.packets,
 531                          rx_ring->stats.bytes,
 532                          rx_ring->rx_stats.non_eop_descs);
 533                 dev_info(&pf->pdev->dev,
 534                          "    rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
 535                          i,
 536                          rx_ring->rx_stats.alloc_page_failed,
 537                          rx_ring->rx_stats.alloc_buff_failed);
 538                 dev_info(&pf->pdev->dev,
 539                          "    rx_rings[%i]: size = %i, dma = 0x%08lx\n",
 540                          i, rx_ring->size,
 541                          (unsigned long int)rx_ring->dma);
 542                 dev_info(&pf->pdev->dev,
 543                          "    rx_rings[%i]: vsi = %p, q_vector = %p\n",
 544                          i, rx_ring->vsi,
 545                          rx_ring->q_vector);
 546         }
 547         for (i = 0; i < vsi->num_queue_pairs; i++) {
 548                 struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
 549
 550                 if (!tx_ring)
 551                         continue;
 552
 553                 dev_info(&pf->pdev->dev,
 554                          "    tx_rings[%i]: desc = %p\n",
 555                          i, tx_ring->desc);
 556                 dev_info(&pf->pdev->dev,
 557                          "    tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n",
 558                          i, tx_ring->dev,
 559                          tx_ring->netdev,
 560                          tx_ring->tx_bi);
 561                 dev_info(&pf->pdev->dev,
 562                          "    tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 563                          i, tx_ring->state,
 564                          tx_ring->queue_index,
 565                          tx_ring->reg_idx);
 566                 dev_info(&pf->pdev->dev,
 567                          "    tx_rings[%i]: dtype = %d\n",
 568                          i, tx_ring->dtype);
 569                 dev_info(&pf->pdev->dev,
 570                          "    tx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 571                          i, tx_ring->hsplit,
 572                          tx_ring->next_to_use,
 573                          tx_ring->next_to_clean,
 574                          tx_ring->ring_active);
 575                 dev_info(&pf->pdev->dev,
 576                          "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 577                          i, tx_ring->stats.packets,
 578                          tx_ring->stats.bytes,
 579                          tx_ring->tx_stats.restart_queue);
 580                 dev_info(&pf->pdev->dev,
 581                          "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
 582                          i,
 583                          tx_ring->tx_stats.tx_busy,
 584                          tx_ring->tx_stats.tx_done_old);
 585                 dev_info(&pf->pdev->dev,
 586                          "    tx_rings[%i]: size = %i, dma = 0x%08lx\n",
 587                          i, tx_ring->size,
 588                          (unsigned long int)tx_ring->dma);
 589                 dev_info(&pf->pdev->dev,
 590                          "    tx_rings[%i]: vsi = %p, q_vector = %p\n",
 591                          i, tx_ring->vsi,
 592                          tx_ring->q_vector);
 593                 dev_info(&pf->pdev->dev,
 594                          "    tx_rings[%i]: DCB tc = %d\n",
 595                          i, tx_ring->dcb_tc);
 596         }
 597         rcu_read_unlock();
 598         dev_info(&pf->pdev->dev,
 599                  "    work_limit = %d, rx_itr_setting = %d (%s), tx_itr_setting = %d (%s)\n",
 600                  vsi->work_limit, vsi->rx_itr_setting,
 601                  ITR_IS_DYNAMIC(vsi->rx_itr_setting) ? "dynamic" : "fixed",
 602                  vsi->tx_itr_setting,
 603                  ITR_IS_DYNAMIC(vsi->tx_itr_setting) ? "dynamic" : "fixed");
 604         dev_info(&pf->pdev->dev,
 605                  "    max_frame = %d, rx_hdr_len = %d, rx_buf_len = %d dtype = %d\n",
 606                  vsi->max_frame, vsi->rx_hdr_len, vsi->rx_buf_len, vsi->dtype);
 607         dev_info(&pf->pdev->dev,
 608                  "    num_q_vectors = %i, base_vector = %i\n",
 609                  vsi->num_q_vectors, vsi->base_vector);
 610         dev_info(&pf->pdev->dev,
 611                  "    seid = %d, id = %d, uplink_seid = %d\n",
 612                  vsi->seid, vsi->id, vsi->uplink_seid);
 613         dev_info(&pf->pdev->dev,
 614                  "    base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
 615                  vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
 616         dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 617         dev_info(&pf->pdev->dev,
 618                  "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 619                  vsi->info.valid_sections, vsi->info.switch_id);
 620         dev_info(&pf->pdev->dev,
 621                  "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 622                  vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 623         dev_info(&pf->pdev->dev,
 624                  "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 625                  vsi->info.sec_flags, vsi->info.sec_reserved);
 626         dev_info(&pf->pdev->dev,
 627                  "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 628                  vsi->info.pvid, vsi->info.fcoe_pvid,
 629                  vsi->info.port_vlan_flags);
 630         dev_info(&pf->pdev->dev,
 631                  "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 632                  vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 633                  vsi->info.pvlan_reserved[2]);
 634         dev_info(&pf->pdev->dev,
 635                  "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 636                  vsi->info.ingress_table, vsi->info.egress_table);
 637         dev_info(&pf->pdev->dev,
 638                  "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 639                  vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 640                  vsi->info.cas_pv_reserved);
 641         dev_info(&pf->pdev->dev,
 642                  "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 643                  vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 644                  vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 645                  vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 646                  vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 647         dev_info(&pf->pdev->dev,
 648                  "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 649                  vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 650                  vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 651                  vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 652                  vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 653         dev_info(&pf->pdev->dev,
 654                  "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 655                  vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 656                  vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 657                  vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 658                  vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 659         dev_info(&pf->pdev->dev,
 660                  "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 661                  vsi->info.queueing_opt_flags,
 662                  vsi->info.queueing_opt_reserved[0],
 663                  vsi->info.queueing_opt_reserved[1],
 664                  vsi->info.queueing_opt_reserved[2]);
 665         dev_info(&pf->pdev->dev,
 666                  "    info: up_enable_bits = 0x%02x\n",
 667                  vsi->info.up_enable_bits);
 668         dev_info(&pf->pdev->dev,
 669                  "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 670                  vsi->info.sched_reserved, vsi->info.outer_up_table);
 671         dev_info(&pf->pdev->dev,
 672                  "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 673                  vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 674                  vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 675                  vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 676                  vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 677         dev_info(&pf->pdev->dev,
 678                  "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 679                  vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 680                  vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 681                  vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 682                  vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 683         dev_info(&pf->pdev->dev,
 684                  "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 685                  vsi->info.stat_counter_idx, vsi->info.sched_id);
 686         dev_info(&pf->pdev->dev,
 687                  "    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",
 688                  vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 689                  vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 690                  vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 691                  vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 692                  vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 693                  vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 694         if (vsi->back)
 695                 dev_info(&pf->pdev->dev, "    PF = %p\n", vsi->back);
 696         dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 697         dev_info(&pf->pdev->dev,
 698                  "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 699                  vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 700         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 701                 dev_info(&pf->pdev->dev,
 702                          "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 703                          i, vsi->tc_config.tc_info[i].qoffset,
 704                          vsi->tc_config.tc_info[i].qcount,
 705                          vsi->tc_config.tc_info[i].netdev_tc);
 706         }
 707         dev_info(&pf->pdev->dev,
 708                  "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 709                  vsi->bw_limit, vsi->bw_max_quanta);
 710         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 711                 dev_info(&pf->pdev->dev,
 712                          "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 713                          i, vsi->bw_ets_share_credits[i],
 714                          vsi->bw_ets_limit_credits[i],
 715                          vsi->bw_ets_max_quanta[i]);
 716         }
 717 #ifdef I40E_FCOE
 718         if (vsi->type == I40E_VSI_FCOE) {
 719                 dev_info(&pf->pdev->dev,
 720                          "    fcoe_stats: rx_packets = %llu, rx_dwords = %llu, rx_dropped = %llu\n",
 721                          vsi->fcoe_stats.rx_fcoe_packets,
 722                          vsi->fcoe_stats.rx_fcoe_dwords,
 723                          vsi->fcoe_stats.rx_fcoe_dropped);
 724                 dev_info(&pf->pdev->dev,
 725                          "    fcoe_stats: tx_packets = %llu, tx_dwords = %llu\n",
 726                          vsi->fcoe_stats.tx_fcoe_packets,
 727                          vsi->fcoe_stats.tx_fcoe_dwords);
 728                 dev_info(&pf->pdev->dev,
 729                          "    fcoe_stats: bad_crc = %llu, last_error = %llu\n",
 730                          vsi->fcoe_stats.fcoe_bad_fccrc,
 731                          vsi->fcoe_stats.fcoe_last_error);
 732                 dev_info(&pf->pdev->dev, "    fcoe_stats: ddp_count = %llu\n",
 733                          vsi->fcoe_stats.fcoe_ddp_count);
 734         }
 735 #endif
 736 }
 737
 738 /**
 739  * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 740  * @pf: the i40e_pf created in command write
 741  **/
 742 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 743 {
 744         struct i40e_adminq_ring *ring;
 745         struct i40e_hw *hw = &pf->hw;
 746         char hdr[32];
 747         int i;
 748
 749         snprintf(hdr, sizeof(hdr), "%s %s:         ",
 750                  dev_driver_string(&pf->pdev->dev),
 751                  dev_name(&pf->pdev->dev));
 752
 753         /* first the send (command) ring, then the receive (event) ring */
 754         dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 755         ring = &(hw->aq.asq);
 756         for (i = 0; i < ring->count; i++) {
 757                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 758
 759                 dev_info(&pf->pdev->dev,
 760                          "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 761                          i, d->flags, d->opcode, d->datalen, d->retval,
 762                          d->cookie_high, d->cookie_low);
 763                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 764                                16, 1, d->params.raw, 16, 0);
 765         }
 766
 767         dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 768         ring = &(hw->aq.arq);
 769         for (i = 0; i < ring->count; i++) {
 770                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 771
 772                 dev_info(&pf->pdev->dev,
 773                          "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 774                          i, d->flags, d->opcode, d->datalen, d->retval,
 775                          d->cookie_high, d->cookie_low);
 776                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 777                                16, 1, d->params.raw, 16, 0);
 778         }
 779 }
 780
 781 /**
 782  * i40e_dbg_dump_desc - handles dump desc write into command datum
 783  * @cnt: number of arguments that the user supplied
 784  * @vsi_seid: vsi id entered by user
 785  * @ring_id: ring id entered by user
 786  * @desc_n: descriptor number entered by user
 787  * @pf: the i40e_pf created in command write
 788  * @is_rx_ring: true if rx, false if tx
 789  **/
 790 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 791                                struct i40e_pf *pf, bool is_rx_ring)
 792 {
 793         struct i40e_tx_desc *txd;
 794         union i40e_rx_desc *rxd;
 795         struct i40e_ring *ring;
 796         struct i40e_vsi *vsi;
 797         int i;
 798
 799         vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 800         if (!vsi) {
 801                 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 802                 return;
 803         }
 804         if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 805                 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 806                 return;
 807         }
 808         if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
 809                 dev_info(&pf->pdev->dev,
 810                          "descriptor rings have not been allocated for vsi %d\n",
 811                          vsi_seid);
 812                 return;
 813         }
 814
 815         ring = kmemdup(is_rx_ring
 816                        ? vsi->rx_rings[ring_id] : vsi->tx_rings[ring_id],
 817                        sizeof(*ring), GFP_KERNEL);
 818         if (!ring)
 819                 return;
 820
 821         if (cnt == 2) {
 822                 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 823                          vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
 824                 for (i = 0; i < ring->count; i++) {
 825                         if (!is_rx_ring) {
 826                                 txd = I40E_TX_DESC(ring, i);
 827                                 dev_info(&pf->pdev->dev,
 828                                          "   d[%03x] = 0x%016llx 0x%016llx\n",
 829                                          i, txd->buffer_addr,
 830                                          txd->cmd_type_offset_bsz);
 831                         } else if (sizeof(union i40e_rx_desc) ==
 832                                    sizeof(union i40e_16byte_rx_desc)) {
 833                                 rxd = I40E_RX_DESC(ring, i);
 834                                 dev_info(&pf->pdev->dev,
 835                                          "   d[%03x] = 0x%016llx 0x%016llx\n",
 836                                          i, rxd->read.pkt_addr,
 837                                          rxd->read.hdr_addr);
 838                         } else {
 839                                 rxd = I40E_RX_DESC(ring, i);
 840                                 dev_info(&pf->pdev->dev,
 841                                          "   d[%03x] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 842                                          i, rxd->read.pkt_addr,
 843                                          rxd->read.hdr_addr,
 844                                          rxd->read.rsvd1, rxd->read.rsvd2);
 845                         }
 846                 }
 847         } else if (cnt == 3) {
 848                 if (desc_n >= ring->count || desc_n < 0) {
 849                         dev_info(&pf->pdev->dev,
 850                                  "descriptor %d not found\n", desc_n);
 851                         goto out;
 852                 }
 853                 if (!is_rx_ring) {
 854                         txd = I40E_TX_DESC(ring, desc_n);
 855                         dev_info(&pf->pdev->dev,
 856                                  "vsi = %02i tx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 857                                  vsi_seid, ring_id, desc_n,
 858                                  txd->buffer_addr, txd->cmd_type_offset_bsz);
 859                 } else if (sizeof(union i40e_rx_desc) ==
 860                            sizeof(union i40e_16byte_rx_desc)) {
 861                         rxd = I40E_RX_DESC(ring, desc_n);
 862                         dev_info(&pf->pdev->dev,
 863                                  "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 864                                  vsi_seid, ring_id, desc_n,
 865                                  rxd->read.pkt_addr, rxd->read.hdr_addr);
 866                 } else {
 867                         rxd = I40E_RX_DESC(ring, desc_n);
 868                         dev_info(&pf->pdev->dev,
 869                                  "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 870                                  vsi_seid, ring_id, desc_n,
 871                                  rxd->read.pkt_addr, rxd->read.hdr_addr,
 872                                  rxd->read.rsvd1, rxd->read.rsvd2);
 873                 }
 874         } else {
 875                 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
 876         }
 877
 878 out:
 879         kfree(ring);
 880 }
 881
 882 /**
 883  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 884  * @pf: the i40e_pf created in command write
 885  **/
 886 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 887 {
 888         int i;
 889
 890         for (i = 0; i < pf->num_alloc_vsi; i++)
 891                 if (pf->vsi[i])
 892                         dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 893                                  i, pf->vsi[i]->seid);
 894 }
 895
 896 /**
 897  * i40e_dbg_dump_stats - handles dump stats write into command datum
 898  * @pf: the i40e_pf created in command write
 899  * @estats: the eth stats structure to be dumped
 900  **/
 901 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 902                                     struct i40e_eth_stats *estats)
 903 {
 904         dev_info(&pf->pdev->dev, "  ethstats:\n");
 905         dev_info(&pf->pdev->dev,
 906                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 907                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 908         dev_info(&pf->pdev->dev,
 909                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
 910                  estats->rx_broadcast, estats->rx_discards);
 911         dev_info(&pf->pdev->dev,
 912                  "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 913                  estats->rx_unknown_protocol, estats->tx_bytes);
 914         dev_info(&pf->pdev->dev,
 915                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 916                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 917         dev_info(&pf->pdev->dev,
 918                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 919                  estats->tx_discards, estats->tx_errors);
 920 }
 921
 922 /**
 923  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 924  * @pf: the i40e_pf created in command write
 925  * @seid: the seid the user put in
 926  **/
 927 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 928 {
 929         struct i40e_veb *veb;
 930
 931         if ((seid < I40E_BASE_VEB_SEID) ||
 932             (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
 933                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
 934                 return;
 935         }
 936
 937         veb = i40e_dbg_find_veb(pf, seid);
 938         if (!veb) {
 939                 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 940                 return;
 941         }
 942         dev_info(&pf->pdev->dev,
 943                  "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d mode=%s\n",
 944                  veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 945                  veb->uplink_seid,
 946                  veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
 947         i40e_dbg_dump_eth_stats(pf, &veb->stats);
 948 }
 949
 950 /**
 951  * i40e_dbg_dump_veb_all - dumps all known veb's stats
 952  * @pf: the i40e_pf created in command write
 953  **/
 954 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 955 {
 956         struct i40e_veb *veb;
 957         int i;
 958
 959         for (i = 0; i < I40E_MAX_VEB; i++) {
 960                 veb = pf->veb[i];
 961                 if (veb)
 962                         i40e_dbg_dump_veb_seid(pf, veb->seid);
 963         }
 964 }
 965
 966 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
 967 /**
 968  * i40e_dbg_command_write - write into command datum
 969  * @filp: the opened file
 970  * @buffer: where to find the user's data
 971  * @count: the length of the user's data
 972  * @ppos: file position offset
 973  **/
 974 static ssize_t i40e_dbg_command_write(struct file *filp,
 975                                       const char __user *buffer,
 976                                       size_t count, loff_t *ppos)
 977 {
 978         struct i40e_pf *pf = filp->private_data;
 979         char *cmd_buf, *cmd_buf_tmp;
 980         int bytes_not_copied;
 981         struct i40e_vsi *vsi;
 982         int vsi_seid;
 983         int veb_seid;
 984         int cnt;
 985
 986         /* don't allow partial writes */
 987         if (*ppos != 0)
 988                 return 0;
 989
 990         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
 991         if (!cmd_buf)
 992                 return count;
 993         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
 994         if (bytes_not_copied) {
 995                 kfree(cmd_buf);
 996                 return -EFAULT;
 997         }
 998         cmd_buf[count] = '\0';
 999
1000         cmd_buf_tmp = strchr(cmd_buf, '\n');
1001         if (cmd_buf_tmp) {
1002                 *cmd_buf_tmp = '\0';
1003                 count = cmd_buf_tmp - cmd_buf + 1;
1004         }
1005
1006         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
1007                 vsi_seid = -1;
1008                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1009                 if (cnt == 0) {
1010                         /* default to PF VSI */
1011                         vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1012                 } else if (vsi_seid < 0) {
1013                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1014                                  vsi_seid);
1015                         goto command_write_done;
1016                 }
1017
1018                 /* By default we are in VEPA mode, if this is the first VF/VMDq
1019                  * VSI to be added switch to VEB mode.
1020                  */
1021                 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1022                         pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1023                         i40e_do_reset_safe(pf,
1024                                            BIT_ULL(__I40E_PF_RESET_REQUESTED));
1025                 }
1026
1027                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1028                 if (vsi)
1029                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1030                                  vsi->seid, vsi->uplink_seid);
1031                 else
1032                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1033
1034         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1035                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1036                 if (cnt != 1) {
1037                         dev_info(&pf->pdev->dev,
1038                                  "del vsi: bad command string, cnt=%d\n",
1039                                  cnt);
1040                         goto command_write_done;
1041                 }
1042                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1043                 if (!vsi) {
1044                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1045                                  vsi_seid);
1046                         goto command_write_done;
1047                 }
1048
1049                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1050                 i40e_vsi_release(vsi);
1051
1052         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1053                 struct i40e_veb *veb;
1054                 int uplink_seid, i;
1055
1056                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1057                 if (cnt != 2) {
1058                         dev_info(&pf->pdev->dev,
1059                                  "add relay: bad command string, cnt=%d\n",
1060                                  cnt);
1061                         goto command_write_done;
1062                 } else if (uplink_seid < 0) {
1063                         dev_info(&pf->pdev->dev,
1064                                  "add relay %d: bad uplink seid\n",
1065                                  uplink_seid);
1066                         goto command_write_done;
1067                 }
1068
1069                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1070                 if (!vsi) {
1071                         dev_info(&pf->pdev->dev,
1072                                  "add relay: VSI %d not found\n", vsi_seid);
1073                         goto command_write_done;
1074                 }
1075
1076                 for (i = 0; i < I40E_MAX_VEB; i++)
1077                         if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1078                                 break;
1079                 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1080                     uplink_seid != pf->mac_seid) {
1081                         dev_info(&pf->pdev->dev,
1082                                  "add relay: relay uplink %d not found\n",
1083                                  uplink_seid);
1084                         goto command_write_done;
1085                 }
1086
1087                 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1088                                      vsi->tc_config.enabled_tc);
1089                 if (veb)
1090                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1091                 else
1092                         dev_info(&pf->pdev->dev, "add relay failed\n");
1093
1094         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1095                 int i;
1096                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1097                 if (cnt != 1) {
1098                         dev_info(&pf->pdev->dev,
1099                                  "del relay: bad command string, cnt=%d\n",
1100                                  cnt);
1101                         goto command_write_done;
1102                 } else if (veb_seid < 0) {
1103                         dev_info(&pf->pdev->dev,
1104                                  "del relay %d: bad relay seid\n", veb_seid);
1105                         goto command_write_done;
1106                 }
1107
1108                 /* find the veb */
1109                 for (i = 0; i < I40E_MAX_VEB; i++)
1110                         if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1111                                 break;
1112                 if (i >= I40E_MAX_VEB) {
1113                         dev_info(&pf->pdev->dev,
1114                                  "del relay: relay %d not found\n", veb_seid);
1115                         goto command_write_done;
1116                 }
1117
1118                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1119                 i40e_veb_release(pf->veb[i]);
1120
1121         } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
1122                 struct i40e_mac_filter *f;
1123                 int vlan = 0;
1124                 u8 ma[6];
1125                 int ret;
1126
1127                 cnt = sscanf(&cmd_buf[11],
1128                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1129                              &vsi_seid,
1130                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1131                              &vlan);
1132                 if (cnt == 7) {
1133                         vlan = 0;
1134                 } else if (cnt != 8) {
1135                         dev_info(&pf->pdev->dev,
1136                                  "add macaddr: bad command string, cnt=%d\n",
1137                                  cnt);
1138                         goto command_write_done;
1139                 }
1140
1141                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1142                 if (!vsi) {
1143                         dev_info(&pf->pdev->dev,
1144                                  "add macaddr: VSI %d not found\n", vsi_seid);
1145                         goto command_write_done;
1146                 }
1147
1148                 spin_lock_bh(&vsi->mac_filter_list_lock);
1149                 f = i40e_add_filter(vsi, ma, vlan, false, false);
1150                 spin_unlock_bh(&vsi->mac_filter_list_lock);
1151                 ret = i40e_sync_vsi_filters(vsi);
1152                 if (f && !ret)
1153                         dev_info(&pf->pdev->dev,
1154                                  "add macaddr: %pM vlan=%d added to VSI %d\n",
1155                                  ma, vlan, vsi_seid);
1156                 else
1157                         dev_info(&pf->pdev->dev,
1158                                  "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1159                                  ma, vlan, vsi_seid, f, ret);
1160
1161         } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
1162                 int vlan = 0;
1163                 u8 ma[6];
1164                 int ret;
1165
1166                 cnt = sscanf(&cmd_buf[11],
1167                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1168                              &vsi_seid,
1169                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1170                              &vlan);
1171                 if (cnt == 7) {
1172                         vlan = 0;
1173                 } else if (cnt != 8) {
1174                         dev_info(&pf->pdev->dev,
1175                                  "del macaddr: bad command string, cnt=%d\n",
1176                                  cnt);
1177                         goto command_write_done;
1178                 }
1179
1180                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1181                 if (!vsi) {
1182                         dev_info(&pf->pdev->dev,
1183                                  "del macaddr: VSI %d not found\n", vsi_seid);
1184                         goto command_write_done;
1185                 }
1186
1187                 spin_lock_bh(&vsi->mac_filter_list_lock);
1188                 i40e_del_filter(vsi, ma, vlan, false, false);
1189                 spin_unlock_bh(&vsi->mac_filter_list_lock);
1190                 ret = i40e_sync_vsi_filters(vsi);
1191                 if (!ret)
1192                         dev_info(&pf->pdev->dev,
1193                                  "del macaddr: %pM vlan=%d removed from VSI %d\n",
1194                                  ma, vlan, vsi_seid);
1195                 else
1196                         dev_info(&pf->pdev->dev,
1197                                  "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1198                                  ma, vlan, vsi_seid, ret);
1199
1200         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
1201                 i40e_status ret;
1202                 u16 vid;
1203                 unsigned int v;
1204
1205                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1206                 if (cnt != 2) {
1207                         dev_info(&pf->pdev->dev,
1208                                  "add pvid: bad command string, cnt=%d\n", cnt);
1209                         goto command_write_done;
1210                 }
1211
1212                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1213                 if (!vsi) {
1214                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1215                                  vsi_seid);
1216                         goto command_write_done;
1217                 }
1218
1219                 vid = v;
1220                 ret = i40e_vsi_add_pvid(vsi, vid);
1221                 if (!ret)
1222                         dev_info(&pf->pdev->dev,
1223                                  "add pvid: %d added to VSI %d\n",
1224                                  vid, vsi_seid);
1225                 else
1226                         dev_info(&pf->pdev->dev,
1227                                  "add pvid: %d to VSI %d failed, ret=%d\n",
1228                                  vid, vsi_seid, ret);
1229
1230         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1231
1232                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1233                 if (cnt != 1) {
1234                         dev_info(&pf->pdev->dev,
1235                                  "del pvid: bad command string, cnt=%d\n",
1236                                  cnt);
1237                         goto command_write_done;
1238                 }
1239
1240                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1241                 if (!vsi) {
1242                         dev_info(&pf->pdev->dev,
1243                                  "del pvid: VSI %d not found\n", vsi_seid);
1244                         goto command_write_done;
1245                 }
1246
1247                 i40e_vsi_remove_pvid(vsi);
1248                 dev_info(&pf->pdev->dev,
1249                          "del pvid: removed from VSI %d\n", vsi_seid);
1250
1251         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1252                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1253                         i40e_fetch_switch_configuration(pf, true);
1254                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1255                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1256                         if (cnt > 0)
1257                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1258                         else
1259                                 i40e_dbg_dump_vsi_no_seid(pf);
1260                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1261                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1262                         if (cnt > 0)
1263                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1264                         else
1265                                 i40e_dbg_dump_veb_all(pf);
1266                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1267                         int ring_id, desc_n;
1268                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
1269                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1270                                              &vsi_seid, &ring_id, &desc_n);
1271                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1272                                                    desc_n, pf, true);
1273                         } else if (strncmp(&cmd_buf[10], "tx", 2)
1274                                         == 0) {
1275                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1276                                              &vsi_seid, &ring_id, &desc_n);
1277                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1278                                                    desc_n, pf, false);
1279                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1280                                 i40e_dbg_dump_aq_desc(pf);
1281                         } else {
1282                                 dev_info(&pf->pdev->dev,
1283                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1284                                 dev_info(&pf->pdev->dev,
1285                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1286                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
1287                         }
1288                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1289                         dev_info(&pf->pdev->dev,
1290                                  "core reset count: %d\n", pf->corer_count);
1291                         dev_info(&pf->pdev->dev,
1292                                  "global reset count: %d\n", pf->globr_count);
1293                         dev_info(&pf->pdev->dev,
1294                                  "emp reset count: %d\n", pf->empr_count);
1295                         dev_info(&pf->pdev->dev,
1296                                  "pf reset count: %d\n", pf->pfr_count);
1297                         dev_info(&pf->pdev->dev,
1298                                  "pf tx sluggish count: %d\n",
1299                                  pf->tx_sluggish_count);
1300                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1301                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
1302                         struct i40e_dcbx_config *cfg =
1303                                                 &pf->hw.local_dcbx_config;
1304                         struct i40e_dcbx_config *r_cfg =
1305                                                 &pf->hw.remote_dcbx_config;
1306                         int i, ret;
1307
1308                         bw_data = kzalloc(sizeof(
1309                                     struct i40e_aqc_query_port_ets_config_resp),
1310                                           GFP_KERNEL);
1311                         if (!bw_data) {
1312                                 ret = -ENOMEM;
1313                                 goto command_write_done;
1314                         }
1315
1316                         ret = i40e_aq_query_port_ets_config(&pf->hw,
1317                                                             pf->mac_seid,
1318                                                             bw_data, NULL);
1319                         if (ret) {
1320                                 dev_info(&pf->pdev->dev,
1321                                          "Query Port ETS Config AQ command failed =0x%x\n",
1322                                          pf->hw.aq.asq_last_status);
1323                                 kfree(bw_data);
1324                                 bw_data = NULL;
1325                                 goto command_write_done;
1326                         }
1327                         dev_info(&pf->pdev->dev,
1328                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1329                                  bw_data->tc_valid_bits,
1330                                  bw_data->tc_strict_priority_bits,
1331                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1332                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1333                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1334                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1335                                          bw_data->tc_bw_share_credits[i],
1336                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1337                         }
1338
1339                         kfree(bw_data);
1340                         bw_data = NULL;
1341
1342                         dev_info(&pf->pdev->dev,
1343                                  "port dcbx_mode=%d\n", cfg->dcbx_mode);
1344                         dev_info(&pf->pdev->dev,
1345                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1346                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1347                                  cfg->etscfg.maxtcs);
1348                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1349                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1350                                          i, cfg->etscfg.prioritytable[i],
1351                                          cfg->etscfg.tcbwtable[i],
1352                                          cfg->etscfg.tsatable[i]);
1353                         }
1354                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1355                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1356                                          i, cfg->etsrec.prioritytable[i],
1357                                          cfg->etsrec.tcbwtable[i],
1358                                          cfg->etsrec.tsatable[i]);
1359                         }
1360                         dev_info(&pf->pdev->dev,
1361                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1362                                  cfg->pfc.willing, cfg->pfc.mbc,
1363                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1364                         dev_info(&pf->pdev->dev,
1365                                  "port app_table: num_apps=%d\n", cfg->numapps);
1366                         for (i = 0; i < cfg->numapps; i++) {
1367                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1368                                          i, cfg->app[i].priority,
1369                                          cfg->app[i].selector,
1370                                          cfg->app[i].protocolid);
1371                         }
1372                         /* Peer TLV DCBX data */
1373                         dev_info(&pf->pdev->dev,
1374                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1375                                  r_cfg->etscfg.willing,
1376                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1377                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1378                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1379                                          i, r_cfg->etscfg.prioritytable[i],
1380                                          r_cfg->etscfg.tcbwtable[i],
1381                                          r_cfg->etscfg.tsatable[i]);
1382                         }
1383                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1384                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1385                                          i, r_cfg->etsrec.prioritytable[i],
1386                                          r_cfg->etsrec.tcbwtable[i],
1387                                          r_cfg->etsrec.tsatable[i]);
1388                         }
1389                         dev_info(&pf->pdev->dev,
1390                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1391                                  r_cfg->pfc.willing,
1392                                  r_cfg->pfc.mbc,
1393                                  r_cfg->pfc.pfccap,
1394                                  r_cfg->pfc.pfcenable);
1395                         dev_info(&pf->pdev->dev,
1396                                  "remote port app_table: num_apps=%d\n",
1397                                  r_cfg->numapps);
1398                         for (i = 0; i < r_cfg->numapps; i++) {
1399                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1400                                          i, r_cfg->app[i].priority,
1401                                          r_cfg->app[i].selector,
1402                                          r_cfg->app[i].protocolid);
1403                         }
1404                 } else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
1405                         int cluster_id, table_id;
1406                         int index, ret;
1407                         u16 buff_len = 4096;
1408                         u32 next_index;
1409                         u8 next_table;
1410                         u8 *buff;
1411                         u16 rlen;
1412
1413                         cnt = sscanf(&cmd_buf[18], "%i %i %i",
1414                                      &cluster_id, &table_id, &index);
1415                         if (cnt != 3) {
1416                                 dev_info(&pf->pdev->dev,
1417                                          "dump debug fwdata <cluster_id> <table_id> <index>\n");
1418                                 goto command_write_done;
1419                         }
1420
1421                         dev_info(&pf->pdev->dev,
1422                                  "AQ debug dump fwdata params %x %x %x %x\n",
1423                                  cluster_id, table_id, index, buff_len);
1424                         buff = kzalloc(buff_len, GFP_KERNEL);
1425                         if (!buff)
1426                                 goto command_write_done;
1427
1428                         ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
1429                                                  index, buff_len, buff, &rlen,
1430                                                  &next_table, &next_index,
1431                                                  NULL);
1432                         if (ret) {
1433                                 dev_info(&pf->pdev->dev,
1434                                          "debug dump fwdata AQ Failed %d 0x%x\n",
1435                                          ret, pf->hw.aq.asq_last_status);
1436                                 kfree(buff);
1437                                 buff = NULL;
1438                                 goto command_write_done;
1439                         }
1440                         dev_info(&pf->pdev->dev,
1441                                  "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
1442                                  rlen, next_table, next_index);
1443                         print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1444                                        DUMP_PREFIX_OFFSET, 16, 1,
1445                                        buff, rlen, true);
1446                         kfree(buff);
1447                         buff = NULL;
1448                 } else {
1449                         dev_info(&pf->pdev->dev,
1450                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1451                         dev_info(&pf->pdev->dev, "dump switch\n");
1452                         dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1453                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1454                         dev_info(&pf->pdev->dev, "dump port\n");
1455                         dev_info(&pf->pdev->dev,
1456                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1457                 }
1458
1459         } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1460                 u32 level;
1461                 cnt = sscanf(&cmd_buf[10], "%i", &level);
1462                 if (cnt) {
1463                         if (I40E_DEBUG_USER & level) {
1464                                 pf->hw.debug_mask = level;
1465                                 dev_info(&pf->pdev->dev,
1466                                          "set hw.debug_mask = 0x%08x\n",
1467                                          pf->hw.debug_mask);
1468                         }
1469                         pf->msg_enable = level;
1470                         dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1471                                  pf->msg_enable);
1472                 } else {
1473                         dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1474                                  pf->msg_enable);
1475                 }
1476         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1477                 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1478                 i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
1479
1480         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1481                 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1482                 i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));
1483
1484         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1485                 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1486                 i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));
1487
1488         } else if (strncmp(cmd_buf, "empr", 4) == 0) {
1489                 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
1490                 i40e_do_reset_safe(pf, BIT(__I40E_EMP_RESET_REQUESTED));
1491
1492         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1493                 u32 address;
1494                 u32 value;
1495
1496                 cnt = sscanf(&cmd_buf[4], "%i", &address);
1497                 if (cnt != 1) {
1498                         dev_info(&pf->pdev->dev, "read <reg>\n");
1499                         goto command_write_done;
1500                 }
1501
1502                 /* check the range on address */
1503                 if (address > (pf->ioremap_len - sizeof(u32))) {
1504                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large, max=0x%08lx\n",
1505                                  address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1506                         goto command_write_done;
1507                 }
1508
1509                 value = rd32(&pf->hw, address);
1510                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1511                          address, value);
1512
1513         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1514                 u32 address, value;
1515
1516                 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1517                 if (cnt != 2) {
1518                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1519                         goto command_write_done;
1520                 }
1521
1522                 /* check the range on address */
1523                 if (address > (pf->ioremap_len - sizeof(u32))) {
1524                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large, max=0x%08lx\n",
1525                                  address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1526                         goto command_write_done;
1527                 }
1528                 wr32(&pf->hw, address, value);
1529                 value = rd32(&pf->hw, address);
1530                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1531                          address, value);
1532         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1533                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1534                         cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1535                         if (cnt == 0) {
1536                                 int i;
1537
1538                                 for (i = 0; i < pf->num_alloc_vsi; i++)
1539                                         i40e_vsi_reset_stats(pf->vsi[i]);
1540                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1541                         } else if (cnt == 1) {
1542                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1543                                 if (!vsi) {
1544                                         dev_info(&pf->pdev->dev,
1545                                                  "clear_stats vsi: bad vsi %d\n",
1546                                                  vsi_seid);
1547                                         goto command_write_done;
1548                                 }
1549                                 i40e_vsi_reset_stats(vsi);
1550                                 dev_info(&pf->pdev->dev,
1551                                          "vsi clear stats called for vsi %d\n",
1552                                          vsi_seid);
1553                         } else {
1554                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1555                         }
1556                 } else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1557                         if (pf->hw.partition_id == 1) {
1558                                 i40e_pf_reset_stats(pf);
1559                                 dev_info(&pf->pdev->dev, "port stats cleared\n");
1560                         } else {
1561                                 dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1562                         }
1563                 } else {
1564                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
1565                 }
1566         } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1567                 struct i40e_aq_desc *desc;
1568                 i40e_status ret;
1569
1570                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1571                 if (!desc)
1572                         goto command_write_done;
1573                 cnt = sscanf(&cmd_buf[11],
1574                              "%hi %hi %hi %hi %i %i %i %i %i %i",
1575                              &desc->flags,
1576                              &desc->opcode, &desc->datalen, &desc->retval,
1577                              &desc->cookie_high, &desc->cookie_low,
1578                              &desc->params.internal.param0,
1579                              &desc->params.internal.param1,
1580                              &desc->params.internal.param2,
1581                              &desc->params.internal.param3);
1582                 if (cnt != 10) {
1583                         dev_info(&pf->pdev->dev,
1584                                  "send aq_cmd: bad command string, cnt=%d\n",
1585                                  cnt);
1586                         kfree(desc);
1587                         desc = NULL;
1588                         goto command_write_done;
1589                 }
1590                 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1591                 if (!ret) {
1592                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1593                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1594                         dev_info(&pf->pdev->dev,
1595                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1596                                  desc->opcode, pf->hw.aq.asq_last_status);
1597                 } else {
1598                         dev_info(&pf->pdev->dev,
1599                                  "AQ command send failed Opcode %x Status: %d\n",
1600                                  desc->opcode, ret);
1601                 }
1602                 dev_info(&pf->pdev->dev,
1603                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1604                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1605                          desc->cookie_high, desc->cookie_low,
1606                          desc->params.internal.param0,
1607                          desc->params.internal.param1,
1608                          desc->params.internal.param2,
1609                          desc->params.internal.param3);
1610                 kfree(desc);
1611                 desc = NULL;
1612         } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1613                 struct i40e_aq_desc *desc;
1614                 i40e_status ret;
1615                 u16 buffer_len;
1616                 u8 *buff;
1617
1618                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1619                 if (!desc)
1620                         goto command_write_done;
1621                 cnt = sscanf(&cmd_buf[20],
1622                              "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1623                              &desc->flags,
1624                              &desc->opcode, &desc->datalen, &desc->retval,
1625                              &desc->cookie_high, &desc->cookie_low,
1626                              &desc->params.internal.param0,
1627                              &desc->params.internal.param1,
1628                              &desc->params.internal.param2,
1629                              &desc->params.internal.param3,
1630                              &buffer_len);
1631                 if (cnt != 11) {
1632                         dev_info(&pf->pdev->dev,
1633                                  "send indirect aq_cmd: bad command string, cnt=%d\n",
1634                                  cnt);
1635                         kfree(desc);
1636                         desc = NULL;
1637                         goto command_write_done;
1638                 }
1639                 /* Just stub a buffer big enough in case user messed up */
1640                 if (buffer_len == 0)
1641                         buffer_len = 1280;
1642
1643                 buff = kzalloc(buffer_len, GFP_KERNEL);
1644                 if (!buff) {
1645                         kfree(desc);
1646                         desc = NULL;
1647                         goto command_write_done;
1648                 }
1649                 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1650                 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1651                                             buffer_len, NULL);
1652                 if (!ret) {
1653                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1654                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1655                         dev_info(&pf->pdev->dev,
1656                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1657                                  desc->opcode, pf->hw.aq.asq_last_status);
1658                 } else {
1659                         dev_info(&pf->pdev->dev,
1660                                  "AQ command send failed Opcode %x Status: %d\n",
1661                                  desc->opcode, ret);
1662                 }
1663                 dev_info(&pf->pdev->dev,
1664                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1665                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1666                          desc->cookie_high, desc->cookie_low,
1667                          desc->params.internal.param0,
1668                          desc->params.internal.param1,
1669                          desc->params.internal.param2,
1670                          desc->params.internal.param3);
1671                 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1672                                DUMP_PREFIX_OFFSET, 16, 1,
1673                                buff, buffer_len, true);
1674                 kfree(buff);
1675                 buff = NULL;
1676                 kfree(desc);
1677                 desc = NULL;
1678         } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1679                    (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
1680                 struct i40e_fdir_filter fd_data;
1681                 u16 packet_len, i, j = 0;
1682                 char *asc_packet;
1683                 u8 *raw_packet;
1684                 bool add = false;
1685                 int ret;
1686
1687                 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
1688                         goto command_write_done;
1689
1690                 if (strncmp(cmd_buf, "add", 3) == 0)
1691                         add = true;
1692
1693                 if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED))
1694                         goto command_write_done;
1695
1696                 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1697                                      GFP_KERNEL);
1698                 if (!asc_packet)
1699                         goto command_write_done;
1700
1701                 raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1702                                      GFP_KERNEL);
1703
1704                 if (!raw_packet) {
1705                         kfree(asc_packet);
1706                         asc_packet = NULL;
1707                         goto command_write_done;
1708                 }
1709
1710                 cnt = sscanf(&cmd_buf[13],
1711                              "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s",
1712                              &fd_data.q_index,
1713                              &fd_data.flex_off, &fd_data.pctype,
1714                              &fd_data.dest_vsi, &fd_data.dest_ctl,
1715                              &fd_data.fd_status, &fd_data.cnt_index,
1716                              &fd_data.fd_id, &packet_len, asc_packet);
1717                 if (cnt != 10) {
1718                         dev_info(&pf->pdev->dev,
1719                                  "program fd_filter: bad command string, cnt=%d\n",
1720                                  cnt);
1721                         kfree(asc_packet);
1722                         asc_packet = NULL;
1723                         kfree(raw_packet);
1724                         goto command_write_done;
1725                 }
1726
1727                 /* fix packet length if user entered 0 */
1728                 if (packet_len == 0)
1729                         packet_len = I40E_FDIR_MAX_RAW_PACKET_SIZE;
1730
1731                 /* make sure to check the max as well */
1732                 packet_len = min_t(u16,
1733                                    packet_len, I40E_FDIR_MAX_RAW_PACKET_SIZE);
1734
1735                 for (i = 0; i < packet_len; i++) {
1736                         cnt = sscanf(&asc_packet[j], "%2hhx ", &raw_packet[i]);
1737                         if (!cnt)
1738                                 break;
1739                         j += 3;
1740                 }
1741                 dev_info(&pf->pdev->dev, "FD raw packet dump\n");
1742                 print_hex_dump(KERN_INFO, "FD raw packet: ",
1743                                DUMP_PREFIX_OFFSET, 16, 1,
1744                                raw_packet, packet_len, true);
1745                 ret = i40e_program_fdir_filter(&fd_data, raw_packet, pf, add);
1746                 if (!ret) {
1747                         dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1748                 } else {
1749                         dev_info(&pf->pdev->dev,
1750                                  "Filter command send failed %d\n", ret);
1751                 }
1752                 kfree(raw_packet);
1753                 raw_packet = NULL;
1754                 kfree(asc_packet);
1755                 asc_packet = NULL;
1756         } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1757                 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1758                          i40e_get_current_fd_count(pf));
1759         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1760                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1761                         int ret;
1762
1763                         ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1764                         if (ret) {
1765                                 dev_info(&pf->pdev->dev,
1766                                          "Stop LLDP AQ command failed =0x%x\n",
1767                                          pf->hw.aq.asq_last_status);
1768                                 goto command_write_done;
1769                         }
1770                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1771                                                 pf->hw.mac.addr,
1772                                                 I40E_ETH_P_LLDP, 0,
1773                                                 pf->vsi[pf->lan_vsi]->seid,
1774                                                 0, true, NULL, NULL);
1775                         if (ret) {
1776                                 dev_info(&pf->pdev->dev,
1777                                         "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1778                                         __func__, pf->hw.aq.asq_last_status);
1779                                 goto command_write_done;
1780                         }
1781 #ifdef CONFIG_I40E_DCB
1782                         pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1783                                        DCB_CAP_DCBX_VER_IEEE;
1784 #endif /* CONFIG_I40E_DCB */
1785                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1786                         int ret;
1787
1788                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1789                                                 pf->hw.mac.addr,
1790                                                 I40E_ETH_P_LLDP, 0,
1791                                                 pf->vsi[pf->lan_vsi]->seid,
1792                                                 0, false, NULL, NULL);
1793                         if (ret) {
1794                                 dev_info(&pf->pdev->dev,
1795                                         "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1796                                         __func__, pf->hw.aq.asq_last_status);
1797                                 /* Continue and start FW LLDP anyways */
1798                         }
1799
1800                         ret = i40e_aq_start_lldp(&pf->hw, NULL);
1801                         if (ret) {
1802                                 dev_info(&pf->pdev->dev,
1803                                          "Start LLDP AQ command failed =0x%x\n",
1804                                          pf->hw.aq.asq_last_status);
1805                                 goto command_write_done;
1806                         }
1807 #ifdef CONFIG_I40E_DCB
1808                         pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1809                                        DCB_CAP_DCBX_VER_IEEE;
1810 #endif /* CONFIG_I40E_DCB */
1811                 } else if (strncmp(&cmd_buf[5],
1812                            "get local", 9) == 0) {
1813                         u16 llen, rlen;
1814                         int ret;
1815                         u8 *buff;
1816
1817                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1818                         if (!buff)
1819                                 goto command_write_done;
1820
1821                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1822                                                    I40E_AQ_LLDP_MIB_LOCAL,
1823                                                    buff, I40E_LLDPDU_SIZE,
1824                                                    &llen, &rlen, NULL);
1825                         if (ret) {
1826                                 dev_info(&pf->pdev->dev,
1827                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1828                                          pf->hw.aq.asq_last_status);
1829                                 kfree(buff);
1830                                 buff = NULL;
1831                                 goto command_write_done;
1832                         }
1833                         dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1834                         print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1835                                        DUMP_PREFIX_OFFSET, 16, 1,
1836                                        buff, I40E_LLDPDU_SIZE, true);
1837                         kfree(buff);
1838                         buff = NULL;
1839                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1840                         u16 llen, rlen;
1841                         int ret;
1842                         u8 *buff;
1843
1844                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1845                         if (!buff)
1846                                 goto command_write_done;
1847
1848                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1849                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1850                                         I40E_AQ_LLDP_MIB_REMOTE,
1851                                         buff, I40E_LLDPDU_SIZE,
1852                                         &llen, &rlen, NULL);
1853                         if (ret) {
1854                                 dev_info(&pf->pdev->dev,
1855                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1856                                          pf->hw.aq.asq_last_status);
1857                                 kfree(buff);
1858                                 buff = NULL;
1859                                 goto command_write_done;
1860                         }
1861                         dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1862                         print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1863                                        DUMP_PREFIX_OFFSET, 16, 1,
1864                                        buff, I40E_LLDPDU_SIZE, true);
1865                         kfree(buff);
1866                         buff = NULL;
1867                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1868                         int ret;
1869
1870                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1871                                                                 true, NULL);
1872                         if (ret) {
1873                                 dev_info(&pf->pdev->dev,
1874                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1875                                          pf->hw.aq.asq_last_status);
1876                                 goto command_write_done;
1877                         }
1878                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1879                         int ret;
1880
1881                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1882                                                                 false, NULL);
1883                         if (ret) {
1884                                 dev_info(&pf->pdev->dev,
1885                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1886                                          pf->hw.aq.asq_last_status);
1887                                 goto command_write_done;
1888                         }
1889                 }
1890         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1891                 u16 buffer_len, bytes;
1892                 u16 module;
1893                 u32 offset;
1894                 u16 *buff;
1895                 int ret;
1896
1897                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1898                              &module, &offset, &buffer_len);
1899                 if (cnt == 0) {
1900                         module = 0;
1901                         offset = 0;
1902                         buffer_len = 0;
1903                 } else if (cnt == 1) {
1904                         offset = 0;
1905                         buffer_len = 0;
1906                 } else if (cnt == 2) {
1907                         buffer_len = 0;
1908                 } else if (cnt > 3) {
1909                         dev_info(&pf->pdev->dev,
1910                                  "nvm read: bad command string, cnt=%d\n", cnt);
1911                         goto command_write_done;
1912                 }
1913
1914                 /* set the max length */
1915                 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1916
1917                 bytes = 2 * buffer_len;
1918
1919                 /* read at least 1k bytes, no more than 4kB */
1920                 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1921                 buff = kzalloc(bytes, GFP_KERNEL);
1922                 if (!buff)
1923                         goto command_write_done;
1924
1925                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1926                 if (ret) {
1927                         dev_info(&pf->pdev->dev,
1928                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1929                                  ret, pf->hw.aq.asq_last_status);
1930                         kfree(buff);
1931                         goto command_write_done;
1932                 }
1933
1934                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1935                                        bytes, (u8 *)buff, true, NULL);
1936                 i40e_release_nvm(&pf->hw);
1937                 if (ret) {
1938                         dev_info(&pf->pdev->dev,
1939                                  "Read NVM AQ failed err=%d status=0x%x\n",
1940                                  ret, pf->hw.aq.asq_last_status);
1941                 } else {
1942                         dev_info(&pf->pdev->dev,
1943                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1944                                  module, offset, buffer_len);
1945                         if (bytes)
1946                                 print_hex_dump(KERN_INFO, "NVM Dump: ",
1947                                         DUMP_PREFIX_OFFSET, 16, 2,
1948                                         buff, bytes, true);
1949                 }
1950                 kfree(buff);
1951                 buff = NULL;
1952         } else {
1953                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1954                 dev_info(&pf->pdev->dev, "available commands\n");
1955                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1956                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1957                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1958                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1959                 dev_info(&pf->pdev->dev, "  add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1960                 dev_info(&pf->pdev->dev, "  del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1961                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1962                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1963                 dev_info(&pf->pdev->dev, "  dump switch\n");
1964                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1965                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1966                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1967                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1968                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1969                 dev_info(&pf->pdev->dev, "  dump debug fwdata <cluster_id> <table_id> <index>\n");
1970                 dev_info(&pf->pdev->dev, "  msg_enable [level]\n");
1971                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1972                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1973                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1974                 dev_info(&pf->pdev->dev, "  clear_stats port\n");
1975                 dev_info(&pf->pdev->dev, "  pfr\n");
1976                 dev_info(&pf->pdev->dev, "  corer\n");
1977                 dev_info(&pf->pdev->dev, "  globr\n");
1978                 dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1979                 dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1980                 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");
1981                 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");
1982                 dev_info(&pf->pdev->dev, "  fd current cnt");
1983                 dev_info(&pf->pdev->dev, "  lldp start\n");
1984                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1985                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1986                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1987                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1988                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1989                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1990         }
1991
1992 command_write_done:
1993         kfree(cmd_buf);
1994         cmd_buf = NULL;
1995         return count;
1996 }
1997
1998 static const struct file_operations i40e_dbg_command_fops = {
1999         .owner = THIS_MODULE,
2000         .open =  simple_open,
2001         .read =  i40e_dbg_command_read,
2002         .write = i40e_dbg_command_write,
2003 };
2004
2005 /**************************************************************
2006  * netdev_ops
2007  * The netdev_ops entry in debugfs is for giving the driver commands
2008  * to be executed from the netdev operations.
2009  **************************************************************/
2010 static char i40e_dbg_netdev_ops_buf[256] = "";
2011
2012 /**
2013  * i40e_dbg_netdev_ops - read for netdev_ops datum
2014  * @filp: the opened file
2015  * @buffer: where to write the data for the user to read
2016  * @count: the size of the user's buffer
2017  * @ppos: file position offset
2018  **/
2019 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
2020                                         size_t count, loff_t *ppos)
2021 {
2022         struct i40e_pf *pf = filp->private_data;
2023         int bytes_not_copied;
2024         int buf_size = 256;
2025         char *buf;
2026         int len;
2027
2028         /* don't allow partal reads */
2029         if (*ppos != 0)
2030                 return 0;
2031         if (count < buf_size)
2032                 return -ENOSPC;
2033
2034         buf = kzalloc(buf_size, GFP_KERNEL);
2035         if (!buf)
2036                 return -ENOSPC;
2037
2038         len = snprintf(buf, buf_size, "%s: %s\n",
2039                        pf->vsi[pf->lan_vsi]->netdev->name,
2040                        i40e_dbg_netdev_ops_buf);
2041
2042         bytes_not_copied = copy_to_user(buffer, buf, len);
2043         kfree(buf);
2044
2045         if (bytes_not_copied)
2046                 return -EFAULT;
2047
2048         *ppos = len;
2049         return len;
2050 }
2051
2052 /**
2053  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
2054  * @filp: the opened file
2055  * @buffer: where to find the user's data
2056  * @count: the length of the user's data
2057  * @ppos: file position offset
2058  **/
2059 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
2060                                          const char __user *buffer,
2061                                          size_t count, loff_t *ppos)
2062 {
2063         struct i40e_pf *pf = filp->private_data;
2064         int bytes_not_copied;
2065         struct i40e_vsi *vsi;
2066         char *buf_tmp;
2067         int vsi_seid;
2068         int i, cnt;
2069
2070         /* don't allow partial writes */
2071         if (*ppos != 0)
2072                 return 0;
2073         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
2074                 return -ENOSPC;
2075
2076         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
2077         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
2078                                           buffer, count);
2079         if (bytes_not_copied)
2080                 return -EFAULT;
2081         i40e_dbg_netdev_ops_buf[count] = '\0';
2082
2083         buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
2084         if (buf_tmp) {
2085                 *buf_tmp = '\0';
2086                 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
2087         }
2088
2089         if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
2090                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2091                 if (cnt != 1) {
2092                         dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
2093                         goto netdev_ops_write_done;
2094                 }
2095                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2096                 if (!vsi) {
2097                         dev_info(&pf->pdev->dev,
2098                                  "tx_timeout: VSI %d not found\n", vsi_seid);
2099                 } else if (!vsi->netdev) {
2100                         dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n",
2101                                  vsi_seid);
2102                 } else if (test_bit(__I40E_DOWN, &vsi->state)) {
2103                         dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n",
2104                                  vsi_seid);
2105                 } else if (rtnl_trylock()) {
2106                         vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
2107                         rtnl_unlock();
2108                         dev_info(&pf->pdev->dev, "tx_timeout called\n");
2109                 } else {
2110                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2111                 }
2112         } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
2113                 int mtu;
2114
2115                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
2116                              &vsi_seid, &mtu);
2117                 if (cnt != 2) {
2118                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
2119                         goto netdev_ops_write_done;
2120                 }
2121                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2122                 if (!vsi) {
2123                         dev_info(&pf->pdev->dev,
2124                                  "change_mtu: VSI %d not found\n", vsi_seid);
2125                 } else if (!vsi->netdev) {
2126                         dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
2127                                  vsi_seid);
2128                 } else if (rtnl_trylock()) {
2129                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
2130                                                                 mtu);
2131                         rtnl_unlock();
2132                         dev_info(&pf->pdev->dev, "change_mtu called\n");
2133                 } else {
2134                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2135                 }
2136
2137         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
2138                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2139                 if (cnt != 1) {
2140                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
2141                         goto netdev_ops_write_done;
2142                 }
2143                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2144                 if (!vsi) {
2145                         dev_info(&pf->pdev->dev,
2146                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
2147                 } else if (!vsi->netdev) {
2148                         dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
2149                                  vsi_seid);
2150                 } else if (rtnl_trylock()) {
2151                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
2152                         rtnl_unlock();
2153                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
2154                 } else {
2155                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2156                 }
2157
2158         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
2159                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
2160                 if (cnt != 1) {
2161                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
2162                         goto netdev_ops_write_done;
2163                 }
2164                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2165                 if (!vsi) {
2166                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
2167                                  vsi_seid);
2168                 } else if (!vsi->netdev) {
2169                         dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
2170                                  vsi_seid);
2171                 } else {
2172                         for (i = 0; i < vsi->num_q_vectors; i++)
2173                                 napi_schedule(&vsi->q_vectors[i]->napi);
2174                         dev_info(&pf->pdev->dev, "napi called\n");
2175                 }
2176         } else {
2177                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
2178                          i40e_dbg_netdev_ops_buf);
2179                 dev_info(&pf->pdev->dev, "available commands\n");
2180                 dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
2181                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
2182                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
2183                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
2184         }
2185 netdev_ops_write_done:
2186         return count;
2187 }
2188
2189 static const struct file_operations i40e_dbg_netdev_ops_fops = {
2190         .owner = THIS_MODULE,
2191         .open = simple_open,
2192         .read = i40e_dbg_netdev_ops_read,
2193         .write = i40e_dbg_netdev_ops_write,
2194 };
2195
2196 /**
2197  * i40e_dbg_pf_init - setup the debugfs directory for the PF
2198  * @pf: the PF that is starting up
2199  **/
2200 void i40e_dbg_pf_init(struct i40e_pf *pf)
2201 {
2202         struct dentry *pfile;
2203         const char *name = pci_name(pf->pdev);
2204         const struct device *dev = &pf->pdev->dev;
2205
2206         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
2207         if (!pf->i40e_dbg_pf)
2208                 return;
2209
2210         pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
2211                                     &i40e_dbg_command_fops);
2212         if (!pfile)
2213                 goto create_failed;
2214
2215         pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2216                                     &i40e_dbg_dump_fops);
2217         if (!pfile)
2218                 goto create_failed;
2219
2220         pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
2221                                     &i40e_dbg_netdev_ops_fops);
2222         if (!pfile)
2223                 goto create_failed;
2224
2225         return;
2226
2227 create_failed:
2228         dev_info(dev, "debugfs dir/file for %s failed\n", name);
2229         debugfs_remove_recursive(pf->i40e_dbg_pf);
2230 }
2231
2232 /**
2233  * i40e_dbg_pf_exit - clear out the PF's debugfs entries
2234  * @pf: the PF that is stopping
2235  **/
2236 void i40e_dbg_pf_exit(struct i40e_pf *pf)
2237 {
2238         debugfs_remove_recursive(pf->i40e_dbg_pf);
2239         pf->i40e_dbg_pf = NULL;
2240
2241         kfree(i40e_dbg_dump_buf);
2242         i40e_dbg_dump_buf = NULL;
2243 }
2244
2245 /**
2246  * i40e_dbg_init - start up debugfs for the driver
2247  **/
2248 void i40e_dbg_init(void)
2249 {
2250         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2251         if (!i40e_dbg_root)
2252                 pr_info("init of debugfs failed\n");
2253 }
2254
2255 /**
2256  * i40e_dbg_exit - clean out the driver's debugfs entries
2257  **/
2258 void i40e_dbg_exit(void)
2259 {
2260         debugfs_remove_recursive(i40e_dbg_root);
2261         i40e_dbg_root = NULL;
2262 }
2263
2264 #endif /* CONFIG_DEBUG_FS */