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]: rx_stats: realloc_count = %lld, page_reuse_count = %lld\n",
 540                          i,
 541                          rx_ring->rx_stats.realloc_count,
 542                          rx_ring->rx_stats.page_reuse_count);
 543                 dev_info(&pf->pdev->dev,
 544                          "    rx_rings[%i]: size = %i, dma = 0x%08lx\n",
 545                          i, rx_ring->size,
 546                          (unsigned long int)rx_ring->dma);
 547                 dev_info(&pf->pdev->dev,
 548                          "    rx_rings[%i]: vsi = %p, q_vector = %p\n",
 549                          i, rx_ring->vsi,
 550                          rx_ring->q_vector);
 551         }
 552         for (i = 0; i < vsi->num_queue_pairs; i++) {
 553                 struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
 554
 555                 if (!tx_ring)
 556                         continue;
 557
 558                 dev_info(&pf->pdev->dev,
 559                          "    tx_rings[%i]: desc = %p\n",
 560                          i, tx_ring->desc);
 561                 dev_info(&pf->pdev->dev,
 562                          "    tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n",
 563                          i, tx_ring->dev,
 564                          tx_ring->netdev,
 565                          tx_ring->tx_bi);
 566                 dev_info(&pf->pdev->dev,
 567                          "    tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 568                          i, tx_ring->state,
 569                          tx_ring->queue_index,
 570                          tx_ring->reg_idx);
 571                 dev_info(&pf->pdev->dev,
 572                          "    tx_rings[%i]: dtype = %d\n",
 573                          i, tx_ring->dtype);
 574                 dev_info(&pf->pdev->dev,
 575                          "    tx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 576                          i, tx_ring->hsplit,
 577                          tx_ring->next_to_use,
 578                          tx_ring->next_to_clean,
 579                          tx_ring->ring_active);
 580                 dev_info(&pf->pdev->dev,
 581                          "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 582                          i, tx_ring->stats.packets,
 583                          tx_ring->stats.bytes,
 584                          tx_ring->tx_stats.restart_queue);
 585                 dev_info(&pf->pdev->dev,
 586                          "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
 587                          i,
 588                          tx_ring->tx_stats.tx_busy,
 589                          tx_ring->tx_stats.tx_done_old);
 590                 dev_info(&pf->pdev->dev,
 591                          "    tx_rings[%i]: size = %i, dma = 0x%08lx\n",
 592                          i, tx_ring->size,
 593                          (unsigned long int)tx_ring->dma);
 594                 dev_info(&pf->pdev->dev,
 595                          "    tx_rings[%i]: vsi = %p, q_vector = %p\n",
 596                          i, tx_ring->vsi,
 597                          tx_ring->q_vector);
 598                 dev_info(&pf->pdev->dev,
 599                          "    tx_rings[%i]: DCB tc = %d\n",
 600                          i, tx_ring->dcb_tc);
 601         }
 602         rcu_read_unlock();
 603         dev_info(&pf->pdev->dev,
 604                  "    work_limit = %d, rx_itr_setting = %d (%s), tx_itr_setting = %d (%s)\n",
 605                  vsi->work_limit, vsi->rx_itr_setting,
 606                  ITR_IS_DYNAMIC(vsi->rx_itr_setting) ? "dynamic" : "fixed",
 607                  vsi->tx_itr_setting,
 608                  ITR_IS_DYNAMIC(vsi->tx_itr_setting) ? "dynamic" : "fixed");
 609         dev_info(&pf->pdev->dev,
 610                  "    max_frame = %d, rx_hdr_len = %d, rx_buf_len = %d dtype = %d\n",
 611                  vsi->max_frame, vsi->rx_hdr_len, vsi->rx_buf_len, vsi->dtype);
 612         dev_info(&pf->pdev->dev,
 613                  "    num_q_vectors = %i, base_vector = %i\n",
 614                  vsi->num_q_vectors, vsi->base_vector);
 615         dev_info(&pf->pdev->dev,
 616                  "    seid = %d, id = %d, uplink_seid = %d\n",
 617                  vsi->seid, vsi->id, vsi->uplink_seid);
 618         dev_info(&pf->pdev->dev,
 619                  "    base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
 620                  vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
 621         dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 622         dev_info(&pf->pdev->dev,
 623                  "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 624                  vsi->info.valid_sections, vsi->info.switch_id);
 625         dev_info(&pf->pdev->dev,
 626                  "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 627                  vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 628         dev_info(&pf->pdev->dev,
 629                  "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 630                  vsi->info.sec_flags, vsi->info.sec_reserved);
 631         dev_info(&pf->pdev->dev,
 632                  "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 633                  vsi->info.pvid, vsi->info.fcoe_pvid,
 634                  vsi->info.port_vlan_flags);
 635         dev_info(&pf->pdev->dev,
 636                  "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 637                  vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 638                  vsi->info.pvlan_reserved[2]);
 639         dev_info(&pf->pdev->dev,
 640                  "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 641                  vsi->info.ingress_table, vsi->info.egress_table);
 642         dev_info(&pf->pdev->dev,
 643                  "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 644                  vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 645                  vsi->info.cas_pv_reserved);
 646         dev_info(&pf->pdev->dev,
 647                  "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 648                  vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 649                  vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 650                  vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 651                  vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 652         dev_info(&pf->pdev->dev,
 653                  "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 654                  vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 655                  vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 656                  vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 657                  vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 658         dev_info(&pf->pdev->dev,
 659                  "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 660                  vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 661                  vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 662                  vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 663                  vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 664         dev_info(&pf->pdev->dev,
 665                  "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 666                  vsi->info.queueing_opt_flags,
 667                  vsi->info.queueing_opt_reserved[0],
 668                  vsi->info.queueing_opt_reserved[1],
 669                  vsi->info.queueing_opt_reserved[2]);
 670         dev_info(&pf->pdev->dev,
 671                  "    info: up_enable_bits = 0x%02x\n",
 672                  vsi->info.up_enable_bits);
 673         dev_info(&pf->pdev->dev,
 674                  "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 675                  vsi->info.sched_reserved, vsi->info.outer_up_table);
 676         dev_info(&pf->pdev->dev,
 677                  "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 678                  vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 679                  vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 680                  vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 681                  vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 682         dev_info(&pf->pdev->dev,
 683                  "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 684                  vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 685                  vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 686                  vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 687                  vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 688         dev_info(&pf->pdev->dev,
 689                  "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 690                  vsi->info.stat_counter_idx, vsi->info.sched_id);
 691         dev_info(&pf->pdev->dev,
 692                  "    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",
 693                  vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 694                  vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 695                  vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 696                  vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 697                  vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 698                  vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 699         if (vsi->back)
 700                 dev_info(&pf->pdev->dev, "    PF = %p\n", vsi->back);
 701         dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 702         dev_info(&pf->pdev->dev,
 703                  "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 704                  vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 705         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 706                 dev_info(&pf->pdev->dev,
 707                          "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 708                          i, vsi->tc_config.tc_info[i].qoffset,
 709                          vsi->tc_config.tc_info[i].qcount,
 710                          vsi->tc_config.tc_info[i].netdev_tc);
 711         }
 712         dev_info(&pf->pdev->dev,
 713                  "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 714                  vsi->bw_limit, vsi->bw_max_quanta);
 715         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 716                 dev_info(&pf->pdev->dev,
 717                          "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 718                          i, vsi->bw_ets_share_credits[i],
 719                          vsi->bw_ets_limit_credits[i],
 720                          vsi->bw_ets_max_quanta[i]);
 721         }
 722 #ifdef I40E_FCOE
 723         if (vsi->type == I40E_VSI_FCOE) {
 724                 dev_info(&pf->pdev->dev,
 725                          "    fcoe_stats: rx_packets = %llu, rx_dwords = %llu, rx_dropped = %llu\n",
 726                          vsi->fcoe_stats.rx_fcoe_packets,
 727                          vsi->fcoe_stats.rx_fcoe_dwords,
 728                          vsi->fcoe_stats.rx_fcoe_dropped);
 729                 dev_info(&pf->pdev->dev,
 730                          "    fcoe_stats: tx_packets = %llu, tx_dwords = %llu\n",
 731                          vsi->fcoe_stats.tx_fcoe_packets,
 732                          vsi->fcoe_stats.tx_fcoe_dwords);
 733                 dev_info(&pf->pdev->dev,
 734                          "    fcoe_stats: bad_crc = %llu, last_error = %llu\n",
 735                          vsi->fcoe_stats.fcoe_bad_fccrc,
 736                          vsi->fcoe_stats.fcoe_last_error);
 737                 dev_info(&pf->pdev->dev, "    fcoe_stats: ddp_count = %llu\n",
 738                          vsi->fcoe_stats.fcoe_ddp_count);
 739         }
 740 #endif
 741 }
 742
 743 /**
 744  * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 745  * @pf: the i40e_pf created in command write
 746  **/
 747 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 748 {
 749         struct i40e_adminq_ring *ring;
 750         struct i40e_hw *hw = &pf->hw;
 751         char hdr[32];
 752         int i;
 753
 754         snprintf(hdr, sizeof(hdr), "%s %s:         ",
 755                  dev_driver_string(&pf->pdev->dev),
 756                  dev_name(&pf->pdev->dev));
 757
 758         /* first the send (command) ring, then the receive (event) ring */
 759         dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 760         ring = &(hw->aq.asq);
 761         for (i = 0; i < ring->count; i++) {
 762                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 763
 764                 dev_info(&pf->pdev->dev,
 765                          "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 766                          i, d->flags, d->opcode, d->datalen, d->retval,
 767                          d->cookie_high, d->cookie_low);
 768                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 769                                16, 1, d->params.raw, 16, 0);
 770         }
 771
 772         dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 773         ring = &(hw->aq.arq);
 774         for (i = 0; i < ring->count; i++) {
 775                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 776
 777                 dev_info(&pf->pdev->dev,
 778                          "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 779                          i, d->flags, d->opcode, d->datalen, d->retval,
 780                          d->cookie_high, d->cookie_low);
 781                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 782                                16, 1, d->params.raw, 16, 0);
 783         }
 784 }
 785
 786 /**
 787  * i40e_dbg_dump_desc - handles dump desc write into command datum
 788  * @cnt: number of arguments that the user supplied
 789  * @vsi_seid: vsi id entered by user
 790  * @ring_id: ring id entered by user
 791  * @desc_n: descriptor number entered by user
 792  * @pf: the i40e_pf created in command write
 793  * @is_rx_ring: true if rx, false if tx
 794  **/
 795 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 796                                struct i40e_pf *pf, bool is_rx_ring)
 797 {
 798         struct i40e_tx_desc *txd;
 799         union i40e_rx_desc *rxd;
 800         struct i40e_ring *ring;
 801         struct i40e_vsi *vsi;
 802         int i;
 803
 804         vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 805         if (!vsi) {
 806                 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 807                 return;
 808         }
 809         if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 810                 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 811                 return;
 812         }
 813         if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
 814                 dev_info(&pf->pdev->dev,
 815                          "descriptor rings have not been allocated for vsi %d\n",
 816                          vsi_seid);
 817                 return;
 818         }
 819
 820         ring = kmemdup(is_rx_ring
 821                        ? vsi->rx_rings[ring_id] : vsi->tx_rings[ring_id],
 822                        sizeof(*ring), GFP_KERNEL);
 823         if (!ring)
 824                 return;
 825
 826         if (cnt == 2) {
 827                 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 828                          vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
 829                 for (i = 0; i < ring->count; i++) {
 830                         if (!is_rx_ring) {
 831                                 txd = I40E_TX_DESC(ring, i);
 832                                 dev_info(&pf->pdev->dev,
 833                                          "   d[%03x] = 0x%016llx 0x%016llx\n",
 834                                          i, txd->buffer_addr,
 835                                          txd->cmd_type_offset_bsz);
 836                         } else if (sizeof(union i40e_rx_desc) ==
 837                                    sizeof(union i40e_16byte_rx_desc)) {
 838                                 rxd = I40E_RX_DESC(ring, i);
 839                                 dev_info(&pf->pdev->dev,
 840                                          "   d[%03x] = 0x%016llx 0x%016llx\n",
 841                                          i, rxd->read.pkt_addr,
 842                                          rxd->read.hdr_addr);
 843                         } else {
 844                                 rxd = I40E_RX_DESC(ring, i);
 845                                 dev_info(&pf->pdev->dev,
 846                                          "   d[%03x] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 847                                          i, rxd->read.pkt_addr,
 848                                          rxd->read.hdr_addr,
 849                                          rxd->read.rsvd1, rxd->read.rsvd2);
 850                         }
 851                 }
 852         } else if (cnt == 3) {
 853                 if (desc_n >= ring->count || desc_n < 0) {
 854                         dev_info(&pf->pdev->dev,
 855                                  "descriptor %d not found\n", desc_n);
 856                         goto out;
 857                 }
 858                 if (!is_rx_ring) {
 859                         txd = I40E_TX_DESC(ring, desc_n);
 860                         dev_info(&pf->pdev->dev,
 861                                  "vsi = %02i tx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 862                                  vsi_seid, ring_id, desc_n,
 863                                  txd->buffer_addr, txd->cmd_type_offset_bsz);
 864                 } else if (sizeof(union i40e_rx_desc) ==
 865                            sizeof(union i40e_16byte_rx_desc)) {
 866                         rxd = I40E_RX_DESC(ring, desc_n);
 867                         dev_info(&pf->pdev->dev,
 868                                  "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 869                                  vsi_seid, ring_id, desc_n,
 870                                  rxd->read.pkt_addr, rxd->read.hdr_addr);
 871                 } else {
 872                         rxd = I40E_RX_DESC(ring, desc_n);
 873                         dev_info(&pf->pdev->dev,
 874                                  "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 875                                  vsi_seid, ring_id, desc_n,
 876                                  rxd->read.pkt_addr, rxd->read.hdr_addr,
 877                                  rxd->read.rsvd1, rxd->read.rsvd2);
 878                 }
 879         } else {
 880                 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
 881         }
 882
 883 out:
 884         kfree(ring);
 885 }
 886
 887 /**
 888  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 889  * @pf: the i40e_pf created in command write
 890  **/
 891 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 892 {
 893         int i;
 894
 895         for (i = 0; i < pf->num_alloc_vsi; i++)
 896                 if (pf->vsi[i])
 897                         dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 898                                  i, pf->vsi[i]->seid);
 899 }
 900
 901 /**
 902  * i40e_dbg_dump_stats - handles dump stats write into command datum
 903  * @pf: the i40e_pf created in command write
 904  * @estats: the eth stats structure to be dumped
 905  **/
 906 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 907                                     struct i40e_eth_stats *estats)
 908 {
 909         dev_info(&pf->pdev->dev, "  ethstats:\n");
 910         dev_info(&pf->pdev->dev,
 911                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 912                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 913         dev_info(&pf->pdev->dev,
 914                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
 915                  estats->rx_broadcast, estats->rx_discards);
 916         dev_info(&pf->pdev->dev,
 917                  "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 918                  estats->rx_unknown_protocol, estats->tx_bytes);
 919         dev_info(&pf->pdev->dev,
 920                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 921                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 922         dev_info(&pf->pdev->dev,
 923                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 924                  estats->tx_discards, estats->tx_errors);
 925 }
 926
 927 /**
 928  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 929  * @pf: the i40e_pf created in command write
 930  * @seid: the seid the user put in
 931  **/
 932 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 933 {
 934         struct i40e_veb *veb;
 935
 936         if ((seid < I40E_BASE_VEB_SEID) ||
 937             (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
 938                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
 939                 return;
 940         }
 941
 942         veb = i40e_dbg_find_veb(pf, seid);
 943         if (!veb) {
 944                 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 945                 return;
 946         }
 947         dev_info(&pf->pdev->dev,
 948                  "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d mode=%s\n",
 949                  veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 950                  veb->uplink_seid,
 951                  veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
 952         i40e_dbg_dump_eth_stats(pf, &veb->stats);
 953 }
 954
 955 /**
 956  * i40e_dbg_dump_veb_all - dumps all known veb's stats
 957  * @pf: the i40e_pf created in command write
 958  **/
 959 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 960 {
 961         struct i40e_veb *veb;
 962         int i;
 963
 964         for (i = 0; i < I40E_MAX_VEB; i++) {
 965                 veb = pf->veb[i];
 966                 if (veb)
 967                         i40e_dbg_dump_veb_seid(pf, veb->seid);
 968         }
 969 }
 970
 971 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
 972 /**
 973  * i40e_dbg_command_write - write into command datum
 974  * @filp: the opened file
 975  * @buffer: where to find the user's data
 976  * @count: the length of the user's data
 977  * @ppos: file position offset
 978  **/
 979 static ssize_t i40e_dbg_command_write(struct file *filp,
 980                                       const char __user *buffer,
 981                                       size_t count, loff_t *ppos)
 982 {
 983         struct i40e_pf *pf = filp->private_data;
 984         char *cmd_buf, *cmd_buf_tmp;
 985         int bytes_not_copied;
 986         struct i40e_vsi *vsi;
 987         int vsi_seid;
 988         int veb_seid;
 989         int cnt;
 990
 991         /* don't allow partial writes */
 992         if (*ppos != 0)
 993                 return 0;
 994
 995         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
 996         if (!cmd_buf)
 997                 return count;
 998         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
 999         if (bytes_not_copied) {
1000                 kfree(cmd_buf);
1001                 return -EFAULT;
1002         }
1003         cmd_buf[count] = '\0';
1004
1005         cmd_buf_tmp = strchr(cmd_buf, '\n');
1006         if (cmd_buf_tmp) {
1007                 *cmd_buf_tmp = '\0';
1008                 count = cmd_buf_tmp - cmd_buf + 1;
1009         }
1010
1011         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
1012                 vsi_seid = -1;
1013                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1014                 if (cnt == 0) {
1015                         /* default to PF VSI */
1016                         vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1017                 } else if (vsi_seid < 0) {
1018                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1019                                  vsi_seid);
1020                         goto command_write_done;
1021                 }
1022
1023                 /* By default we are in VEPA mode, if this is the first VF/VMDq
1024                  * VSI to be added switch to VEB mode.
1025                  */
1026                 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1027                         pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1028                         i40e_do_reset_safe(pf,
1029                                            BIT_ULL(__I40E_PF_RESET_REQUESTED));
1030                 }
1031
1032                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1033                 if (vsi)
1034                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1035                                  vsi->seid, vsi->uplink_seid);
1036                 else
1037                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1038
1039         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1040                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1041                 if (cnt != 1) {
1042                         dev_info(&pf->pdev->dev,
1043                                  "del vsi: bad command string, cnt=%d\n",
1044                                  cnt);
1045                         goto command_write_done;
1046                 }
1047                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1048                 if (!vsi) {
1049                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1050                                  vsi_seid);
1051                         goto command_write_done;
1052                 }
1053
1054                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1055                 i40e_vsi_release(vsi);
1056
1057         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1058                 struct i40e_veb *veb;
1059                 int uplink_seid, i;
1060
1061                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1062                 if (cnt != 2) {
1063                         dev_info(&pf->pdev->dev,
1064                                  "add relay: bad command string, cnt=%d\n",
1065                                  cnt);
1066                         goto command_write_done;
1067                 } else if (uplink_seid < 0) {
1068                         dev_info(&pf->pdev->dev,
1069                                  "add relay %d: bad uplink seid\n",
1070                                  uplink_seid);
1071                         goto command_write_done;
1072                 }
1073
1074                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1075                 if (!vsi) {
1076                         dev_info(&pf->pdev->dev,
1077                                  "add relay: VSI %d not found\n", vsi_seid);
1078                         goto command_write_done;
1079                 }
1080
1081                 for (i = 0; i < I40E_MAX_VEB; i++)
1082                         if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1083                                 break;
1084                 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1085                     uplink_seid != pf->mac_seid) {
1086                         dev_info(&pf->pdev->dev,
1087                                  "add relay: relay uplink %d not found\n",
1088                                  uplink_seid);
1089                         goto command_write_done;
1090                 }
1091
1092                 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1093                                      vsi->tc_config.enabled_tc);
1094                 if (veb)
1095                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1096                 else
1097                         dev_info(&pf->pdev->dev, "add relay failed\n");
1098
1099         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1100                 int i;
1101                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1102                 if (cnt != 1) {
1103                         dev_info(&pf->pdev->dev,
1104                                  "del relay: bad command string, cnt=%d\n",
1105                                  cnt);
1106                         goto command_write_done;
1107                 } else if (veb_seid < 0) {
1108                         dev_info(&pf->pdev->dev,
1109                                  "del relay %d: bad relay seid\n", veb_seid);
1110                         goto command_write_done;
1111                 }
1112
1113                 /* find the veb */
1114                 for (i = 0; i < I40E_MAX_VEB; i++)
1115                         if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1116                                 break;
1117                 if (i >= I40E_MAX_VEB) {
1118                         dev_info(&pf->pdev->dev,
1119                                  "del relay: relay %d not found\n", veb_seid);
1120                         goto command_write_done;
1121                 }
1122
1123                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1124                 i40e_veb_release(pf->veb[i]);
1125
1126         } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
1127                 struct i40e_mac_filter *f;
1128                 int vlan = 0;
1129                 u8 ma[6];
1130                 int ret;
1131
1132                 cnt = sscanf(&cmd_buf[11],
1133                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1134                              &vsi_seid,
1135                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1136                              &vlan);
1137                 if (cnt == 7) {
1138                         vlan = 0;
1139                 } else if (cnt != 8) {
1140                         dev_info(&pf->pdev->dev,
1141                                  "add macaddr: bad command string, cnt=%d\n",
1142                                  cnt);
1143                         goto command_write_done;
1144                 }
1145
1146                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1147                 if (!vsi) {
1148                         dev_info(&pf->pdev->dev,
1149                                  "add macaddr: VSI %d not found\n", vsi_seid);
1150                         goto command_write_done;
1151                 }
1152
1153                 spin_lock_bh(&vsi->mac_filter_list_lock);
1154                 f = i40e_add_filter(vsi, ma, vlan, false, false);
1155                 spin_unlock_bh(&vsi->mac_filter_list_lock);
1156                 ret = i40e_sync_vsi_filters(vsi);
1157                 if (f && !ret)
1158                         dev_info(&pf->pdev->dev,
1159                                  "add macaddr: %pM vlan=%d added to VSI %d\n",
1160                                  ma, vlan, vsi_seid);
1161                 else
1162                         dev_info(&pf->pdev->dev,
1163                                  "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1164                                  ma, vlan, vsi_seid, f, ret);
1165
1166         } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
1167                 int vlan = 0;
1168                 u8 ma[6];
1169                 int ret;
1170
1171                 cnt = sscanf(&cmd_buf[11],
1172                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1173                              &vsi_seid,
1174                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1175                              &vlan);
1176                 if (cnt == 7) {
1177                         vlan = 0;
1178                 } else if (cnt != 8) {
1179                         dev_info(&pf->pdev->dev,
1180                                  "del macaddr: bad command string, cnt=%d\n",
1181                                  cnt);
1182                         goto command_write_done;
1183                 }
1184
1185                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1186                 if (!vsi) {
1187                         dev_info(&pf->pdev->dev,
1188                                  "del macaddr: VSI %d not found\n", vsi_seid);
1189                         goto command_write_done;
1190                 }
1191
1192                 spin_lock_bh(&vsi->mac_filter_list_lock);
1193                 i40e_del_filter(vsi, ma, vlan, false, false);
1194                 spin_unlock_bh(&vsi->mac_filter_list_lock);
1195                 ret = i40e_sync_vsi_filters(vsi);
1196                 if (!ret)
1197                         dev_info(&pf->pdev->dev,
1198                                  "del macaddr: %pM vlan=%d removed from VSI %d\n",
1199                                  ma, vlan, vsi_seid);
1200                 else
1201                         dev_info(&pf->pdev->dev,
1202                                  "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1203                                  ma, vlan, vsi_seid, ret);
1204
1205         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
1206                 i40e_status ret;
1207                 u16 vid;
1208                 unsigned int v;
1209
1210                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1211                 if (cnt != 2) {
1212                         dev_info(&pf->pdev->dev,
1213                                  "add pvid: bad command string, cnt=%d\n", cnt);
1214                         goto command_write_done;
1215                 }
1216
1217                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1218                 if (!vsi) {
1219                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1220                                  vsi_seid);
1221                         goto command_write_done;
1222                 }
1223
1224                 vid = v;
1225                 ret = i40e_vsi_add_pvid(vsi, vid);
1226                 if (!ret)
1227                         dev_info(&pf->pdev->dev,
1228                                  "add pvid: %d added to VSI %d\n",
1229                                  vid, vsi_seid);
1230                 else
1231                         dev_info(&pf->pdev->dev,
1232                                  "add pvid: %d to VSI %d failed, ret=%d\n",
1233                                  vid, vsi_seid, ret);
1234
1235         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1236
1237                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1238                 if (cnt != 1) {
1239                         dev_info(&pf->pdev->dev,
1240                                  "del pvid: bad command string, cnt=%d\n",
1241                                  cnt);
1242                         goto command_write_done;
1243                 }
1244
1245                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1246                 if (!vsi) {
1247                         dev_info(&pf->pdev->dev,
1248                                  "del pvid: VSI %d not found\n", vsi_seid);
1249                         goto command_write_done;
1250                 }
1251
1252                 i40e_vsi_remove_pvid(vsi);
1253                 dev_info(&pf->pdev->dev,
1254                          "del pvid: removed from VSI %d\n", vsi_seid);
1255
1256         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1257                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1258                         i40e_fetch_switch_configuration(pf, true);
1259                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1260                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1261                         if (cnt > 0)
1262                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1263                         else
1264                                 i40e_dbg_dump_vsi_no_seid(pf);
1265                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1266                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1267                         if (cnt > 0)
1268                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1269                         else
1270                                 i40e_dbg_dump_veb_all(pf);
1271                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1272                         int ring_id, desc_n;
1273                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
1274                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1275                                              &vsi_seid, &ring_id, &desc_n);
1276                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1277                                                    desc_n, pf, true);
1278                         } else if (strncmp(&cmd_buf[10], "tx", 2)
1279                                         == 0) {
1280                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1281                                              &vsi_seid, &ring_id, &desc_n);
1282                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1283                                                    desc_n, pf, false);
1284                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1285                                 i40e_dbg_dump_aq_desc(pf);
1286                         } else {
1287                                 dev_info(&pf->pdev->dev,
1288                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1289                                 dev_info(&pf->pdev->dev,
1290                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1291                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
1292                         }
1293                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1294                         dev_info(&pf->pdev->dev,
1295                                  "core reset count: %d\n", pf->corer_count);
1296                         dev_info(&pf->pdev->dev,
1297                                  "global reset count: %d\n", pf->globr_count);
1298                         dev_info(&pf->pdev->dev,
1299                                  "emp reset count: %d\n", pf->empr_count);
1300                         dev_info(&pf->pdev->dev,
1301                                  "pf reset count: %d\n", pf->pfr_count);
1302                         dev_info(&pf->pdev->dev,
1303                                  "pf tx sluggish count: %d\n",
1304                                  pf->tx_sluggish_count);
1305                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1306                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
1307                         struct i40e_dcbx_config *cfg =
1308                                                 &pf->hw.local_dcbx_config;
1309                         struct i40e_dcbx_config *r_cfg =
1310                                                 &pf->hw.remote_dcbx_config;
1311                         int i, ret;
1312
1313                         bw_data = kzalloc(sizeof(
1314                                     struct i40e_aqc_query_port_ets_config_resp),
1315                                           GFP_KERNEL);
1316                         if (!bw_data) {
1317                                 ret = -ENOMEM;
1318                                 goto command_write_done;
1319                         }
1320
1321                         ret = i40e_aq_query_port_ets_config(&pf->hw,
1322                                                             pf->mac_seid,
1323                                                             bw_data, NULL);
1324                         if (ret) {
1325                                 dev_info(&pf->pdev->dev,
1326                                          "Query Port ETS Config AQ command failed =0x%x\n",
1327                                          pf->hw.aq.asq_last_status);
1328                                 kfree(bw_data);
1329                                 bw_data = NULL;
1330                                 goto command_write_done;
1331                         }
1332                         dev_info(&pf->pdev->dev,
1333                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1334                                  bw_data->tc_valid_bits,
1335                                  bw_data->tc_strict_priority_bits,
1336                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1337                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1338                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1339                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1340                                          bw_data->tc_bw_share_credits[i],
1341                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1342                         }
1343
1344                         kfree(bw_data);
1345                         bw_data = NULL;
1346
1347                         dev_info(&pf->pdev->dev,
1348                                  "port dcbx_mode=%d\n", cfg->dcbx_mode);
1349                         dev_info(&pf->pdev->dev,
1350                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1351                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1352                                  cfg->etscfg.maxtcs);
1353                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1354                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1355                                          i, cfg->etscfg.prioritytable[i],
1356                                          cfg->etscfg.tcbwtable[i],
1357                                          cfg->etscfg.tsatable[i]);
1358                         }
1359                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1360                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1361                                          i, cfg->etsrec.prioritytable[i],
1362                                          cfg->etsrec.tcbwtable[i],
1363                                          cfg->etsrec.tsatable[i]);
1364                         }
1365                         dev_info(&pf->pdev->dev,
1366                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1367                                  cfg->pfc.willing, cfg->pfc.mbc,
1368                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1369                         dev_info(&pf->pdev->dev,
1370                                  "port app_table: num_apps=%d\n", cfg->numapps);
1371                         for (i = 0; i < cfg->numapps; i++) {
1372                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1373                                          i, cfg->app[i].priority,
1374                                          cfg->app[i].selector,
1375                                          cfg->app[i].protocolid);
1376                         }
1377                         /* Peer TLV DCBX data */
1378                         dev_info(&pf->pdev->dev,
1379                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1380                                  r_cfg->etscfg.willing,
1381                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1382                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1383                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1384                                          i, r_cfg->etscfg.prioritytable[i],
1385                                          r_cfg->etscfg.tcbwtable[i],
1386                                          r_cfg->etscfg.tsatable[i]);
1387                         }
1388                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1389                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1390                                          i, r_cfg->etsrec.prioritytable[i],
1391                                          r_cfg->etsrec.tcbwtable[i],
1392                                          r_cfg->etsrec.tsatable[i]);
1393                         }
1394                         dev_info(&pf->pdev->dev,
1395                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1396                                  r_cfg->pfc.willing,
1397                                  r_cfg->pfc.mbc,
1398                                  r_cfg->pfc.pfccap,
1399                                  r_cfg->pfc.pfcenable);
1400                         dev_info(&pf->pdev->dev,
1401                                  "remote port app_table: num_apps=%d\n",
1402                                  r_cfg->numapps);
1403                         for (i = 0; i < r_cfg->numapps; i++) {
1404                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1405                                          i, r_cfg->app[i].priority,
1406                                          r_cfg->app[i].selector,
1407                                          r_cfg->app[i].protocolid);
1408                         }
1409                 } else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
1410                         int cluster_id, table_id;
1411                         int index, ret;
1412                         u16 buff_len = 4096;
1413                         u32 next_index;
1414                         u8 next_table;
1415                         u8 *buff;
1416                         u16 rlen;
1417
1418                         cnt = sscanf(&cmd_buf[18], "%i %i %i",
1419                                      &cluster_id, &table_id, &index);
1420                         if (cnt != 3) {
1421                                 dev_info(&pf->pdev->dev,
1422                                          "dump debug fwdata <cluster_id> <table_id> <index>\n");
1423                                 goto command_write_done;
1424                         }
1425
1426                         dev_info(&pf->pdev->dev,
1427                                  "AQ debug dump fwdata params %x %x %x %x\n",
1428                                  cluster_id, table_id, index, buff_len);
1429                         buff = kzalloc(buff_len, GFP_KERNEL);
1430                         if (!buff)
1431                                 goto command_write_done;
1432
1433                         ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
1434                                                  index, buff_len, buff, &rlen,
1435                                                  &next_table, &next_index,
1436                                                  NULL);
1437                         if (ret) {
1438                                 dev_info(&pf->pdev->dev,
1439                                          "debug dump fwdata AQ Failed %d 0x%x\n",
1440                                          ret, pf->hw.aq.asq_last_status);
1441                                 kfree(buff);
1442                                 buff = NULL;
1443                                 goto command_write_done;
1444                         }
1445                         dev_info(&pf->pdev->dev,
1446                                  "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
1447                                  rlen, next_table, next_index);
1448                         print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1449                                        DUMP_PREFIX_OFFSET, 16, 1,
1450                                        buff, rlen, true);
1451                         kfree(buff);
1452                         buff = NULL;
1453                 } else {
1454                         dev_info(&pf->pdev->dev,
1455                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1456                         dev_info(&pf->pdev->dev, "dump switch\n");
1457                         dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1458                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1459                         dev_info(&pf->pdev->dev, "dump port\n");
1460                         dev_info(&pf->pdev->dev,
1461                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1462                 }
1463
1464         } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1465                 u32 level;
1466                 cnt = sscanf(&cmd_buf[10], "%i", &level);
1467                 if (cnt) {
1468                         if (I40E_DEBUG_USER & level) {
1469                                 pf->hw.debug_mask = level;
1470                                 dev_info(&pf->pdev->dev,
1471                                          "set hw.debug_mask = 0x%08x\n",
1472                                          pf->hw.debug_mask);
1473                         }
1474                         pf->msg_enable = level;
1475                         dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1476                                  pf->msg_enable);
1477                 } else {
1478                         dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1479                                  pf->msg_enable);
1480                 }
1481         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1482                 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1483                 i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
1484
1485         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1486                 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1487                 i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));
1488
1489         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1490                 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1491                 i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));
1492
1493         } else if (strncmp(cmd_buf, "empr", 4) == 0) {
1494                 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
1495                 i40e_do_reset_safe(pf, BIT(__I40E_EMP_RESET_REQUESTED));
1496
1497         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1498                 u32 address;
1499                 u32 value;
1500
1501                 cnt = sscanf(&cmd_buf[4], "%i", &address);
1502                 if (cnt != 1) {
1503                         dev_info(&pf->pdev->dev, "read <reg>\n");
1504                         goto command_write_done;
1505                 }
1506
1507                 /* check the range on address */
1508                 if (address > (pf->ioremap_len - sizeof(u32))) {
1509                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large, max=0x%08lx\n",
1510                                  address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1511                         goto command_write_done;
1512                 }
1513
1514                 value = rd32(&pf->hw, address);
1515                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1516                          address, value);
1517
1518         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1519                 u32 address, value;
1520
1521                 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1522                 if (cnt != 2) {
1523                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1524                         goto command_write_done;
1525                 }
1526
1527                 /* check the range on address */
1528                 if (address > (pf->ioremap_len - sizeof(u32))) {
1529                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large, max=0x%08lx\n",
1530                                  address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1531                         goto command_write_done;
1532                 }
1533                 wr32(&pf->hw, address, value);
1534                 value = rd32(&pf->hw, address);
1535                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1536                          address, value);
1537         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1538                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1539                         cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1540                         if (cnt == 0) {
1541                                 int i;
1542
1543                                 for (i = 0; i < pf->num_alloc_vsi; i++)
1544                                         i40e_vsi_reset_stats(pf->vsi[i]);
1545                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1546                         } else if (cnt == 1) {
1547                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1548                                 if (!vsi) {
1549                                         dev_info(&pf->pdev->dev,
1550                                                  "clear_stats vsi: bad vsi %d\n",
1551                                                  vsi_seid);
1552                                         goto command_write_done;
1553                                 }
1554                                 i40e_vsi_reset_stats(vsi);
1555                                 dev_info(&pf->pdev->dev,
1556                                          "vsi clear stats called for vsi %d\n",
1557                                          vsi_seid);
1558                         } else {
1559                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1560                         }
1561                 } else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1562                         if (pf->hw.partition_id == 1) {
1563                                 i40e_pf_reset_stats(pf);
1564                                 dev_info(&pf->pdev->dev, "port stats cleared\n");
1565                         } else {
1566                                 dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1567                         }
1568                 } else {
1569                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
1570                 }
1571         } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1572                 struct i40e_aq_desc *desc;
1573                 i40e_status ret;
1574
1575                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1576                 if (!desc)
1577                         goto command_write_done;
1578                 cnt = sscanf(&cmd_buf[11],
1579                              "%hi %hi %hi %hi %i %i %i %i %i %i",
1580                              &desc->flags,
1581                              &desc->opcode, &desc->datalen, &desc->retval,
1582                              &desc->cookie_high, &desc->cookie_low,
1583                              &desc->params.internal.param0,
1584                              &desc->params.internal.param1,
1585                              &desc->params.internal.param2,
1586                              &desc->params.internal.param3);
1587                 if (cnt != 10) {
1588                         dev_info(&pf->pdev->dev,
1589                                  "send aq_cmd: bad command string, cnt=%d\n",
1590                                  cnt);
1591                         kfree(desc);
1592                         desc = NULL;
1593                         goto command_write_done;
1594                 }
1595                 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1596                 if (!ret) {
1597                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1598                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1599                         dev_info(&pf->pdev->dev,
1600                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1601                                  desc->opcode, pf->hw.aq.asq_last_status);
1602                 } else {
1603                         dev_info(&pf->pdev->dev,
1604                                  "AQ command send failed Opcode %x Status: %d\n",
1605                                  desc->opcode, ret);
1606                 }
1607                 dev_info(&pf->pdev->dev,
1608                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1609                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1610                          desc->cookie_high, desc->cookie_low,
1611                          desc->params.internal.param0,
1612                          desc->params.internal.param1,
1613                          desc->params.internal.param2,
1614                          desc->params.internal.param3);
1615                 kfree(desc);
1616                 desc = NULL;
1617         } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1618                 struct i40e_aq_desc *desc;
1619                 i40e_status ret;
1620                 u16 buffer_len;
1621                 u8 *buff;
1622
1623                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1624                 if (!desc)
1625                         goto command_write_done;
1626                 cnt = sscanf(&cmd_buf[20],
1627                              "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1628                              &desc->flags,
1629                              &desc->opcode, &desc->datalen, &desc->retval,
1630                              &desc->cookie_high, &desc->cookie_low,
1631                              &desc->params.internal.param0,
1632                              &desc->params.internal.param1,
1633                              &desc->params.internal.param2,
1634                              &desc->params.internal.param3,
1635                              &buffer_len);
1636                 if (cnt != 11) {
1637                         dev_info(&pf->pdev->dev,
1638                                  "send indirect aq_cmd: bad command string, cnt=%d\n",
1639                                  cnt);
1640                         kfree(desc);
1641                         desc = NULL;
1642                         goto command_write_done;
1643                 }
1644                 /* Just stub a buffer big enough in case user messed up */
1645                 if (buffer_len == 0)
1646                         buffer_len = 1280;
1647
1648                 buff = kzalloc(buffer_len, GFP_KERNEL);
1649                 if (!buff) {
1650                         kfree(desc);
1651                         desc = NULL;
1652                         goto command_write_done;
1653                 }
1654                 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1655                 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1656                                             buffer_len, NULL);
1657                 if (!ret) {
1658                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1659                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1660                         dev_info(&pf->pdev->dev,
1661                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1662                                  desc->opcode, pf->hw.aq.asq_last_status);
1663                 } else {
1664                         dev_info(&pf->pdev->dev,
1665                                  "AQ command send failed Opcode %x Status: %d\n",
1666                                  desc->opcode, ret);
1667                 }
1668                 dev_info(&pf->pdev->dev,
1669                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1670                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1671                          desc->cookie_high, desc->cookie_low,
1672                          desc->params.internal.param0,
1673                          desc->params.internal.param1,
1674                          desc->params.internal.param2,
1675                          desc->params.internal.param3);
1676                 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1677                                DUMP_PREFIX_OFFSET, 16, 1,
1678                                buff, buffer_len, true);
1679                 kfree(buff);
1680                 buff = NULL;
1681                 kfree(desc);
1682                 desc = NULL;
1683         } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1684                    (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
1685                 struct i40e_fdir_filter fd_data;
1686                 u16 packet_len, i, j = 0;
1687                 char *asc_packet;
1688                 u8 *raw_packet;
1689                 bool add = false;
1690                 int ret;
1691
1692                 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
1693                         goto command_write_done;
1694
1695                 if (strncmp(cmd_buf, "add", 3) == 0)
1696                         add = true;
1697
1698                 if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED))
1699                         goto command_write_done;
1700
1701                 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1702                                      GFP_KERNEL);
1703                 if (!asc_packet)
1704                         goto command_write_done;
1705
1706                 raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1707                                      GFP_KERNEL);
1708
1709                 if (!raw_packet) {
1710                         kfree(asc_packet);
1711                         asc_packet = NULL;
1712                         goto command_write_done;
1713                 }
1714
1715                 cnt = sscanf(&cmd_buf[13],
1716                              "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s",
1717                              &fd_data.q_index,
1718                              &fd_data.flex_off, &fd_data.pctype,
1719                              &fd_data.dest_vsi, &fd_data.dest_ctl,
1720                              &fd_data.fd_status, &fd_data.cnt_index,
1721                              &fd_data.fd_id, &packet_len, asc_packet);
1722                 if (cnt != 10) {
1723                         dev_info(&pf->pdev->dev,
1724                                  "program fd_filter: bad command string, cnt=%d\n",
1725                                  cnt);
1726                         kfree(asc_packet);
1727                         asc_packet = NULL;
1728                         kfree(raw_packet);
1729                         goto command_write_done;
1730                 }
1731
1732                 /* fix packet length if user entered 0 */
1733                 if (packet_len == 0)
1734                         packet_len = I40E_FDIR_MAX_RAW_PACKET_SIZE;
1735
1736                 /* make sure to check the max as well */
1737                 packet_len = min_t(u16,
1738                                    packet_len, I40E_FDIR_MAX_RAW_PACKET_SIZE);
1739
1740                 for (i = 0; i < packet_len; i++) {
1741                         cnt = sscanf(&asc_packet[j], "%2hhx ", &raw_packet[i]);
1742                         if (!cnt)
1743                                 break;
1744                         j += 3;
1745                 }
1746                 dev_info(&pf->pdev->dev, "FD raw packet dump\n");
1747                 print_hex_dump(KERN_INFO, "FD raw packet: ",
1748                                DUMP_PREFIX_OFFSET, 16, 1,
1749                                raw_packet, packet_len, true);
1750                 ret = i40e_program_fdir_filter(&fd_data, raw_packet, pf, add);
1751                 if (!ret) {
1752                         dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1753                 } else {
1754                         dev_info(&pf->pdev->dev,
1755                                  "Filter command send failed %d\n", ret);
1756                 }
1757                 kfree(raw_packet);
1758                 raw_packet = NULL;
1759                 kfree(asc_packet);
1760                 asc_packet = NULL;
1761         } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1762                 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1763                          i40e_get_current_fd_count(pf));
1764         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1765                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1766                         int ret;
1767
1768                         ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1769                         if (ret) {
1770                                 dev_info(&pf->pdev->dev,
1771                                          "Stop LLDP AQ command failed =0x%x\n",
1772                                          pf->hw.aq.asq_last_status);
1773                                 goto command_write_done;
1774                         }
1775                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1776                                                 pf->hw.mac.addr,
1777                                                 I40E_ETH_P_LLDP, 0,
1778                                                 pf->vsi[pf->lan_vsi]->seid,
1779                                                 0, true, NULL, NULL);
1780                         if (ret) {
1781                                 dev_info(&pf->pdev->dev,
1782                                         "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1783                                         __func__, pf->hw.aq.asq_last_status);
1784                                 goto command_write_done;
1785                         }
1786 #ifdef CONFIG_I40E_DCB
1787                         pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1788                                        DCB_CAP_DCBX_VER_IEEE;
1789 #endif /* CONFIG_I40E_DCB */
1790                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1791                         int ret;
1792
1793                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1794                                                 pf->hw.mac.addr,
1795                                                 I40E_ETH_P_LLDP, 0,
1796                                                 pf->vsi[pf->lan_vsi]->seid,
1797                                                 0, false, NULL, NULL);
1798                         if (ret) {
1799                                 dev_info(&pf->pdev->dev,
1800                                         "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1801                                         __func__, pf->hw.aq.asq_last_status);
1802                                 /* Continue and start FW LLDP anyways */
1803                         }
1804
1805                         ret = i40e_aq_start_lldp(&pf->hw, NULL);
1806                         if (ret) {
1807                                 dev_info(&pf->pdev->dev,
1808                                          "Start LLDP AQ command failed =0x%x\n",
1809                                          pf->hw.aq.asq_last_status);
1810                                 goto command_write_done;
1811                         }
1812 #ifdef CONFIG_I40E_DCB
1813                         pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1814                                        DCB_CAP_DCBX_VER_IEEE;
1815 #endif /* CONFIG_I40E_DCB */
1816                 } else if (strncmp(&cmd_buf[5],
1817                            "get local", 9) == 0) {
1818                         u16 llen, rlen;
1819                         int ret;
1820                         u8 *buff;
1821
1822                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1823                         if (!buff)
1824                                 goto command_write_done;
1825
1826                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1827                                                    I40E_AQ_LLDP_MIB_LOCAL,
1828                                                    buff, I40E_LLDPDU_SIZE,
1829                                                    &llen, &rlen, NULL);
1830                         if (ret) {
1831                                 dev_info(&pf->pdev->dev,
1832                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1833                                          pf->hw.aq.asq_last_status);
1834                                 kfree(buff);
1835                                 buff = NULL;
1836                                 goto command_write_done;
1837                         }
1838                         dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1839                         print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1840                                        DUMP_PREFIX_OFFSET, 16, 1,
1841                                        buff, I40E_LLDPDU_SIZE, true);
1842                         kfree(buff);
1843                         buff = NULL;
1844                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1845                         u16 llen, rlen;
1846                         int ret;
1847                         u8 *buff;
1848
1849                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1850                         if (!buff)
1851                                 goto command_write_done;
1852
1853                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1854                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1855                                         I40E_AQ_LLDP_MIB_REMOTE,
1856                                         buff, I40E_LLDPDU_SIZE,
1857                                         &llen, &rlen, NULL);
1858                         if (ret) {
1859                                 dev_info(&pf->pdev->dev,
1860                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1861                                          pf->hw.aq.asq_last_status);
1862                                 kfree(buff);
1863                                 buff = NULL;
1864                                 goto command_write_done;
1865                         }
1866                         dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1867                         print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1868                                        DUMP_PREFIX_OFFSET, 16, 1,
1869                                        buff, I40E_LLDPDU_SIZE, true);
1870                         kfree(buff);
1871                         buff = NULL;
1872                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1873                         int ret;
1874
1875                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1876                                                                 true, NULL);
1877                         if (ret) {
1878                                 dev_info(&pf->pdev->dev,
1879                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1880                                          pf->hw.aq.asq_last_status);
1881                                 goto command_write_done;
1882                         }
1883                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1884                         int ret;
1885
1886                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1887                                                                 false, NULL);
1888                         if (ret) {
1889                                 dev_info(&pf->pdev->dev,
1890                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1891                                          pf->hw.aq.asq_last_status);
1892                                 goto command_write_done;
1893                         }
1894                 }
1895         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1896                 u16 buffer_len, bytes;
1897                 u16 module;
1898                 u32 offset;
1899                 u16 *buff;
1900                 int ret;
1901
1902                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1903                              &module, &offset, &buffer_len);
1904                 if (cnt == 0) {
1905                         module = 0;
1906                         offset = 0;
1907                         buffer_len = 0;
1908                 } else if (cnt == 1) {
1909                         offset = 0;
1910                         buffer_len = 0;
1911                 } else if (cnt == 2) {
1912                         buffer_len = 0;
1913                 } else if (cnt > 3) {
1914                         dev_info(&pf->pdev->dev,
1915                                  "nvm read: bad command string, cnt=%d\n", cnt);
1916                         goto command_write_done;
1917                 }
1918
1919                 /* set the max length */
1920                 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1921
1922                 bytes = 2 * buffer_len;
1923
1924                 /* read at least 1k bytes, no more than 4kB */
1925                 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1926                 buff = kzalloc(bytes, GFP_KERNEL);
1927                 if (!buff)
1928                         goto command_write_done;
1929
1930                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1931                 if (ret) {
1932                         dev_info(&pf->pdev->dev,
1933                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1934                                  ret, pf->hw.aq.asq_last_status);
1935                         kfree(buff);
1936                         goto command_write_done;
1937                 }
1938
1939                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1940                                        bytes, (u8 *)buff, true, NULL);
1941                 i40e_release_nvm(&pf->hw);
1942                 if (ret) {
1943                         dev_info(&pf->pdev->dev,
1944                                  "Read NVM AQ failed err=%d status=0x%x\n",
1945                                  ret, pf->hw.aq.asq_last_status);
1946                 } else {
1947                         dev_info(&pf->pdev->dev,
1948                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1949                                  module, offset, buffer_len);
1950                         if (bytes)
1951                                 print_hex_dump(KERN_INFO, "NVM Dump: ",
1952                                         DUMP_PREFIX_OFFSET, 16, 2,
1953                                         buff, bytes, true);
1954                 }
1955                 kfree(buff);
1956                 buff = NULL;
1957         } else {
1958                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1959                 dev_info(&pf->pdev->dev, "available commands\n");
1960                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1961                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1962                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1963                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1964                 dev_info(&pf->pdev->dev, "  add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1965                 dev_info(&pf->pdev->dev, "  del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1966                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1967                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1968                 dev_info(&pf->pdev->dev, "  dump switch\n");
1969                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1970                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1971                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1972                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1973                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1974                 dev_info(&pf->pdev->dev, "  dump debug fwdata <cluster_id> <table_id> <index>\n");
1975                 dev_info(&pf->pdev->dev, "  msg_enable [level]\n");
1976                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1977                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1978                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1979                 dev_info(&pf->pdev->dev, "  clear_stats port\n");
1980                 dev_info(&pf->pdev->dev, "  pfr\n");
1981                 dev_info(&pf->pdev->dev, "  corer\n");
1982                 dev_info(&pf->pdev->dev, "  globr\n");
1983                 dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1984                 dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1985                 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");
1986                 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");
1987                 dev_info(&pf->pdev->dev, "  fd current cnt");
1988                 dev_info(&pf->pdev->dev, "  lldp start\n");
1989                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1990                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1991                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1992                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1993                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1994                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1995         }
1996
1997 command_write_done:
1998         kfree(cmd_buf);
1999         cmd_buf = NULL;
2000         return count;
2001 }
2002
2003 static const struct file_operations i40e_dbg_command_fops = {
2004         .owner = THIS_MODULE,
2005         .open =  simple_open,
2006         .read =  i40e_dbg_command_read,
2007         .write = i40e_dbg_command_write,
2008 };
2009
2010 /**************************************************************
2011  * netdev_ops
2012  * The netdev_ops entry in debugfs is for giving the driver commands
2013  * to be executed from the netdev operations.
2014  **************************************************************/
2015 static char i40e_dbg_netdev_ops_buf[256] = "";
2016
2017 /**
2018  * i40e_dbg_netdev_ops - read for netdev_ops datum
2019  * @filp: the opened file
2020  * @buffer: where to write the data for the user to read
2021  * @count: the size of the user's buffer
2022  * @ppos: file position offset
2023  **/
2024 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
2025                                         size_t count, loff_t *ppos)
2026 {
2027         struct i40e_pf *pf = filp->private_data;
2028         int bytes_not_copied;
2029         int buf_size = 256;
2030         char *buf;
2031         int len;
2032
2033         /* don't allow partal reads */
2034         if (*ppos != 0)
2035                 return 0;
2036         if (count < buf_size)
2037                 return -ENOSPC;
2038
2039         buf = kzalloc(buf_size, GFP_KERNEL);
2040         if (!buf)
2041                 return -ENOSPC;
2042
2043         len = snprintf(buf, buf_size, "%s: %s\n",
2044                        pf->vsi[pf->lan_vsi]->netdev->name,
2045                        i40e_dbg_netdev_ops_buf);
2046
2047         bytes_not_copied = copy_to_user(buffer, buf, len);
2048         kfree(buf);
2049
2050         if (bytes_not_copied)
2051                 return -EFAULT;
2052
2053         *ppos = len;
2054         return len;
2055 }
2056
2057 /**
2058  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
2059  * @filp: the opened file
2060  * @buffer: where to find the user's data
2061  * @count: the length of the user's data
2062  * @ppos: file position offset
2063  **/
2064 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
2065                                          const char __user *buffer,
2066                                          size_t count, loff_t *ppos)
2067 {
2068         struct i40e_pf *pf = filp->private_data;
2069         int bytes_not_copied;
2070         struct i40e_vsi *vsi;
2071         char *buf_tmp;
2072         int vsi_seid;
2073         int i, cnt;
2074
2075         /* don't allow partial writes */
2076         if (*ppos != 0)
2077                 return 0;
2078         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
2079                 return -ENOSPC;
2080
2081         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
2082         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
2083                                           buffer, count);
2084         if (bytes_not_copied)
2085                 return -EFAULT;
2086         i40e_dbg_netdev_ops_buf[count] = '\0';
2087
2088         buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
2089         if (buf_tmp) {
2090                 *buf_tmp = '\0';
2091                 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
2092         }
2093
2094         if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
2095                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2096                 if (cnt != 1) {
2097                         dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
2098                         goto netdev_ops_write_done;
2099                 }
2100                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2101                 if (!vsi) {
2102                         dev_info(&pf->pdev->dev,
2103                                  "tx_timeout: VSI %d not found\n", vsi_seid);
2104                 } else if (!vsi->netdev) {
2105                         dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n",
2106                                  vsi_seid);
2107                 } else if (test_bit(__I40E_DOWN, &vsi->state)) {
2108                         dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n",
2109                                  vsi_seid);
2110                 } else if (rtnl_trylock()) {
2111                         vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
2112                         rtnl_unlock();
2113                         dev_info(&pf->pdev->dev, "tx_timeout called\n");
2114                 } else {
2115                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2116                 }
2117         } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
2118                 int mtu;
2119
2120                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
2121                              &vsi_seid, &mtu);
2122                 if (cnt != 2) {
2123                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
2124                         goto netdev_ops_write_done;
2125                 }
2126                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2127                 if (!vsi) {
2128                         dev_info(&pf->pdev->dev,
2129                                  "change_mtu: VSI %d not found\n", vsi_seid);
2130                 } else if (!vsi->netdev) {
2131                         dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
2132                                  vsi_seid);
2133                 } else if (rtnl_trylock()) {
2134                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
2135                                                                 mtu);
2136                         rtnl_unlock();
2137                         dev_info(&pf->pdev->dev, "change_mtu called\n");
2138                 } else {
2139                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2140                 }
2141
2142         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
2143                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2144                 if (cnt != 1) {
2145                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
2146                         goto netdev_ops_write_done;
2147                 }
2148                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2149                 if (!vsi) {
2150                         dev_info(&pf->pdev->dev,
2151                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
2152                 } else if (!vsi->netdev) {
2153                         dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
2154                                  vsi_seid);
2155                 } else if (rtnl_trylock()) {
2156                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
2157                         rtnl_unlock();
2158                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
2159                 } else {
2160                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2161                 }
2162
2163         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
2164                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
2165                 if (cnt != 1) {
2166                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
2167                         goto netdev_ops_write_done;
2168                 }
2169                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2170                 if (!vsi) {
2171                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
2172                                  vsi_seid);
2173                 } else if (!vsi->netdev) {
2174                         dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
2175                                  vsi_seid);
2176                 } else {
2177                         for (i = 0; i < vsi->num_q_vectors; i++)
2178                                 napi_schedule(&vsi->q_vectors[i]->napi);
2179                         dev_info(&pf->pdev->dev, "napi called\n");
2180                 }
2181         } else {
2182                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
2183                          i40e_dbg_netdev_ops_buf);
2184                 dev_info(&pf->pdev->dev, "available commands\n");
2185                 dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
2186                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
2187                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
2188                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
2189         }
2190 netdev_ops_write_done:
2191         return count;
2192 }
2193
2194 static const struct file_operations i40e_dbg_netdev_ops_fops = {
2195         .owner = THIS_MODULE,
2196         .open = simple_open,
2197         .read = i40e_dbg_netdev_ops_read,
2198         .write = i40e_dbg_netdev_ops_write,
2199 };
2200
2201 /**
2202  * i40e_dbg_pf_init - setup the debugfs directory for the PF
2203  * @pf: the PF that is starting up
2204  **/
2205 void i40e_dbg_pf_init(struct i40e_pf *pf)
2206 {
2207         struct dentry *pfile;
2208         const char *name = pci_name(pf->pdev);
2209         const struct device *dev = &pf->pdev->dev;
2210
2211         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
2212         if (!pf->i40e_dbg_pf)
2213                 return;
2214
2215         pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
2216                                     &i40e_dbg_command_fops);
2217         if (!pfile)
2218                 goto create_failed;
2219
2220         pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2221                                     &i40e_dbg_dump_fops);
2222         if (!pfile)
2223                 goto create_failed;
2224
2225         pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
2226                                     &i40e_dbg_netdev_ops_fops);
2227         if (!pfile)
2228                 goto create_failed;
2229
2230         return;
2231
2232 create_failed:
2233         dev_info(dev, "debugfs dir/file for %s failed\n", name);
2234         debugfs_remove_recursive(pf->i40e_dbg_pf);
2235 }
2236
2237 /**
2238  * i40e_dbg_pf_exit - clear out the PF's debugfs entries
2239  * @pf: the PF that is stopping
2240  **/
2241 void i40e_dbg_pf_exit(struct i40e_pf *pf)
2242 {
2243         debugfs_remove_recursive(pf->i40e_dbg_pf);
2244         pf->i40e_dbg_pf = NULL;
2245
2246         kfree(i40e_dbg_dump_buf);
2247         i40e_dbg_dump_buf = NULL;
2248 }
2249
2250 /**
2251  * i40e_dbg_init - start up debugfs for the driver
2252  **/
2253 void i40e_dbg_init(void)
2254 {
2255         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2256         if (!i40e_dbg_root)
2257                 pr_info("init of debugfs failed\n");
2258 }
2259
2260 /**
2261  * i40e_dbg_exit - clean out the driver's debugfs entries
2262  **/
2263 void i40e_dbg_exit(void)
2264 {
2265         debugfs_remove_recursive(i40e_dbg_root);
2266         i40e_dbg_root = NULL;
2267 }
2268
2269 #endif /* CONFIG_DEBUG_FS */