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

   1 /*******************************************************************************
   2  *
   3  * Intel Ethernet Controller XL710 Family Linux Driver
   4  * Copyright(c) 2013 - 2014 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 < 0)
 107                 return bytes_not_copied;
 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                         len = sizeof(struct i40e_pf);
 189                         memcpy(p, pf, len);
 190                         p += len;
 191
 192                         len = (sizeof(struct i40e_aq_desc)
 193                                         * pf->hw.aq.num_asq_entries);
 194                         memcpy(p, pf->hw.aq.asq.desc_buf.va, len);
 195                         p += len;
 196
 197                         len = (sizeof(struct i40e_aq_desc)
 198                                         * pf->hw.aq.num_arq_entries);
 199                         memcpy(p, pf->hw.aq.arq.desc_buf.va, len);
 200                         p += len;
 201
 202                         i40e_dbg_dump_data_len = buflen;
 203                         dev_info(&pf->pdev->dev,
 204                                  "PF seid %ld dumped %d bytes\n",
 205                                  seid, (int)i40e_dbg_dump_data_len);
 206                 }
 207         } else if (seid >= I40E_BASE_VSI_SEID) {
 208                 struct i40e_vsi *vsi = NULL;
 209                 struct i40e_mac_filter *f;
 210                 int filter_count = 0;
 211
 212                 mutex_lock(&pf->switch_mutex);
 213                 vsi = i40e_dbg_find_vsi(pf, seid);
 214                 if (!vsi) {
 215                         mutex_unlock(&pf->switch_mutex);
 216                         goto write_exit;
 217                 }
 218
 219                 buflen = sizeof(struct i40e_vsi);
 220                 buflen += sizeof(struct i40e_q_vector) * vsi->num_q_vectors;
 221                 buflen += sizeof(struct i40e_ring) * 2 * vsi->num_queue_pairs;
 222                 buflen += sizeof(struct i40e_tx_buffer) * vsi->num_queue_pairs;
 223                 buflen += sizeof(struct i40e_rx_buffer) * vsi->num_queue_pairs;
 224                 list_for_each_entry(f, &vsi->mac_filter_list, list)
 225                         filter_count++;
 226                 buflen += sizeof(struct i40e_mac_filter) * filter_count;
 227
 228                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 229                         p = i40e_dbg_dump_buf;
 230                         seid_found = true;
 231
 232                         len = sizeof(struct i40e_vsi);
 233                         memcpy(p, vsi, len);
 234                         p += len;
 235
 236                         if (vsi->num_q_vectors) {
 237                                 len = (sizeof(struct i40e_q_vector)
 238                                         * vsi->num_q_vectors);
 239                                 memcpy(p, vsi->q_vectors, len);
 240                                 p += len;
 241                         }
 242
 243                         if (vsi->num_queue_pairs) {
 244                                 len = (sizeof(struct i40e_ring) *
 245                                       vsi->num_queue_pairs);
 246                                 memcpy(p, vsi->tx_rings, len);
 247                                 p += len;
 248                                 memcpy(p, vsi->rx_rings, len);
 249                                 p += len;
 250                         }
 251
 252                         if (vsi->tx_rings[0]) {
 253                                 len = sizeof(struct i40e_tx_buffer);
 254                                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 255                                         memcpy(p, vsi->tx_rings[i]->tx_bi, len);
 256                                         p += len;
 257                                 }
 258                                 len = sizeof(struct i40e_rx_buffer);
 259                                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 260                                         memcpy(p, vsi->rx_rings[i]->rx_bi, len);
 261                                         p += len;
 262                                 }
 263                         }
 264
 265                         /* macvlan filter list */
 266                         len = sizeof(struct i40e_mac_filter);
 267                         list_for_each_entry(f, &vsi->mac_filter_list, list) {
 268                                 memcpy(p, f, len);
 269                                 p += len;
 270                         }
 271
 272                         i40e_dbg_dump_data_len = buflen;
 273                         dev_info(&pf->pdev->dev,
 274                                  "VSI seid %ld dumped %d bytes\n",
 275                                  seid, (int)i40e_dbg_dump_data_len);
 276                 }
 277                 mutex_unlock(&pf->switch_mutex);
 278         } else if (seid >= I40E_BASE_VEB_SEID) {
 279                 struct i40e_veb *veb = NULL;
 280
 281                 mutex_lock(&pf->switch_mutex);
 282                 veb = i40e_dbg_find_veb(pf, seid);
 283                 if (!veb) {
 284                         mutex_unlock(&pf->switch_mutex);
 285                         goto write_exit;
 286                 }
 287
 288                 buflen = sizeof(struct i40e_veb);
 289                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 290                         seid_found = true;
 291                         memcpy(i40e_dbg_dump_buf, veb, buflen);
 292                         i40e_dbg_dump_data_len = buflen;
 293                         dev_info(&pf->pdev->dev,
 294                                  "VEB seid %ld dumped %d bytes\n",
 295                                  seid, (int)i40e_dbg_dump_data_len);
 296                 }
 297                 mutex_unlock(&pf->switch_mutex);
 298         }
 299
 300 write_exit:
 301         if (!seid_found)
 302                 dev_info(&pf->pdev->dev, "unknown seid %ld\n", seid);
 303
 304         return count;
 305 }
 306
 307 static const struct file_operations i40e_dbg_dump_fops = {
 308         .owner = THIS_MODULE,
 309         .open =  simple_open,
 310         .read =  i40e_dbg_dump_read,
 311         .write = i40e_dbg_dump_write,
 312 };
 313
 314 /**************************************************************
 315  * command
 316  * The command entry in debugfs is for giving the driver commands
 317  * to be executed - these may be for changing the internal switch
 318  * setup, adding or removing filters, or other things.  Many of
 319  * these will be useful for some forms of unit testing.
 320  **************************************************************/
 321 static char i40e_dbg_command_buf[256] = "hello world";
 322
 323 /**
 324  * i40e_dbg_command_read - read for command datum
 325  * @filp: the opened file
 326  * @buffer: where to write the data for the user to read
 327  * @count: the size of the user's buffer
 328  * @ppos: file position offset
 329  **/
 330 static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
 331                                      size_t count, loff_t *ppos)
 332 {
 333         struct i40e_pf *pf = filp->private_data;
 334         int bytes_not_copied;
 335         int buf_size = 256;
 336         char *buf;
 337         int len;
 338
 339         /* don't allow partial reads */
 340         if (*ppos != 0)
 341                 return 0;
 342         if (count < buf_size)
 343                 return -ENOSPC;
 344
 345         buf = kzalloc(buf_size, GFP_KERNEL);
 346         if (!buf)
 347                 return -ENOSPC;
 348
 349         len = snprintf(buf, buf_size, "%s: %s\n",
 350                        pf->vsi[pf->lan_vsi]->netdev->name,
 351                        i40e_dbg_command_buf);
 352
 353         bytes_not_copied = copy_to_user(buffer, buf, len);
 354         kfree(buf);
 355
 356         if (bytes_not_copied < 0)
 357                 return bytes_not_copied;
 358
 359         *ppos = len;
 360         return len;
 361 }
 362
 363 /**
 364  * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
 365  * @pf: the i40e_pf created in command write
 366  * @seid: the seid the user put in
 367  **/
 368 static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 369 {
 370         struct rtnl_link_stats64 *nstat;
 371         struct i40e_mac_filter *f;
 372         struct i40e_vsi *vsi;
 373         int i;
 374
 375         vsi = i40e_dbg_find_vsi(pf, seid);
 376         if (!vsi) {
 377                 dev_info(&pf->pdev->dev,
 378                          "dump %d: seid not found\n", seid);
 379                 return;
 380         }
 381         dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
 382         if (vsi->netdev)
 383                 dev_info(&pf->pdev->dev,
 384                          "    netdev: name = %s\n",
 385                          vsi->netdev->name);
 386         if (vsi->active_vlans)
 387                 dev_info(&pf->pdev->dev,
 388                          "    vlgrp: & = %p\n", vsi->active_vlans);
 389         dev_info(&pf->pdev->dev,
 390                  "    netdev_registered = %i, current_netdev_flags = 0x%04x, state = %li flags = 0x%08lx\n",
 391                  vsi->netdev_registered,
 392                  vsi->current_netdev_flags, vsi->state, vsi->flags);
 393         list_for_each_entry(f, &vsi->mac_filter_list, list) {
 394                 dev_info(&pf->pdev->dev,
 395                          "    mac_filter_list: %pM vid=%d, is_netdev=%d is_vf=%d counter=%d\n",
 396                          f->macaddr, f->vlan, f->is_netdev, f->is_vf,
 397                          f->counter);
 398         }
 399         nstat = i40e_get_vsi_stats_struct(vsi);
 400         dev_info(&pf->pdev->dev,
 401                  "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 402                  (long unsigned int)nstat->rx_packets,
 403                  (long unsigned int)nstat->rx_bytes,
 404                  (long unsigned int)nstat->rx_errors,
 405                  (long unsigned int)nstat->rx_dropped);
 406         dev_info(&pf->pdev->dev,
 407                  "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 408                  (long unsigned int)nstat->tx_packets,
 409                  (long unsigned int)nstat->tx_bytes,
 410                  (long unsigned int)nstat->tx_errors,
 411                  (long unsigned int)nstat->tx_dropped);
 412         dev_info(&pf->pdev->dev,
 413                  "    net_stats: multicast = %lu, collisions = %lu\n",
 414                  (long unsigned int)nstat->multicast,
 415                  (long unsigned int)nstat->collisions);
 416         dev_info(&pf->pdev->dev,
 417                  "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 418                  (long unsigned int)nstat->rx_length_errors,
 419                  (long unsigned int)nstat->rx_over_errors,
 420                  (long unsigned int)nstat->rx_crc_errors);
 421         dev_info(&pf->pdev->dev,
 422                  "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 423                  (long unsigned int)nstat->rx_frame_errors,
 424                  (long unsigned int)nstat->rx_fifo_errors,
 425                  (long unsigned int)nstat->rx_missed_errors);
 426         dev_info(&pf->pdev->dev,
 427                  "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 428                  (long unsigned int)nstat->tx_aborted_errors,
 429                  (long unsigned int)nstat->tx_carrier_errors,
 430                  (long unsigned int)nstat->tx_fifo_errors);
 431         dev_info(&pf->pdev->dev,
 432                  "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 433                  (long unsigned int)nstat->tx_heartbeat_errors,
 434                  (long unsigned int)nstat->tx_window_errors);
 435         dev_info(&pf->pdev->dev,
 436                  "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
 437                  (long unsigned int)nstat->rx_compressed,
 438                  (long unsigned int)nstat->tx_compressed);
 439         dev_info(&pf->pdev->dev,
 440                  "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 441                  (long unsigned int)vsi->net_stats_offsets.rx_packets,
 442                  (long unsigned int)vsi->net_stats_offsets.rx_bytes,
 443                  (long unsigned int)vsi->net_stats_offsets.rx_errors,
 444                  (long unsigned int)vsi->net_stats_offsets.rx_dropped);
 445         dev_info(&pf->pdev->dev,
 446                  "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 447                  (long unsigned int)vsi->net_stats_offsets.tx_packets,
 448                  (long unsigned int)vsi->net_stats_offsets.tx_bytes,
 449                  (long unsigned int)vsi->net_stats_offsets.tx_errors,
 450                  (long unsigned int)vsi->net_stats_offsets.tx_dropped);
 451         dev_info(&pf->pdev->dev,
 452                  "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
 453                  (long unsigned int)vsi->net_stats_offsets.multicast,
 454                  (long unsigned int)vsi->net_stats_offsets.collisions);
 455         dev_info(&pf->pdev->dev,
 456                  "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 457                  (long unsigned int)vsi->net_stats_offsets.rx_length_errors,
 458                  (long unsigned int)vsi->net_stats_offsets.rx_over_errors,
 459                  (long unsigned int)vsi->net_stats_offsets.rx_crc_errors);
 460         dev_info(&pf->pdev->dev,
 461                  "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 462                  (long unsigned int)vsi->net_stats_offsets.rx_frame_errors,
 463                  (long unsigned int)vsi->net_stats_offsets.rx_fifo_errors,
 464                  (long unsigned int)vsi->net_stats_offsets.rx_missed_errors);
 465         dev_info(&pf->pdev->dev,
 466                  "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 467                  (long unsigned int)vsi->net_stats_offsets.tx_aborted_errors,
 468                  (long unsigned int)vsi->net_stats_offsets.tx_carrier_errors,
 469                  (long unsigned int)vsi->net_stats_offsets.tx_fifo_errors);
 470         dev_info(&pf->pdev->dev,
 471                  "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 472                  (long unsigned int)vsi->net_stats_offsets.tx_heartbeat_errors,
 473                  (long unsigned int)vsi->net_stats_offsets.tx_window_errors);
 474         dev_info(&pf->pdev->dev,
 475                  "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
 476                  (long unsigned int)vsi->net_stats_offsets.rx_compressed,
 477                  (long unsigned int)vsi->net_stats_offsets.tx_compressed);
 478         dev_info(&pf->pdev->dev,
 479                  "    tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n",
 480                  vsi->tx_restart, vsi->tx_busy,
 481                  vsi->rx_buf_failed, vsi->rx_page_failed);
 482         rcu_read_lock();
 483         for (i = 0; i < vsi->num_queue_pairs; i++) {
 484                 struct i40e_ring *rx_ring = ACCESS_ONCE(vsi->rx_rings[i]);
 485                 if (!rx_ring)
 486                         continue;
 487
 488                 dev_info(&pf->pdev->dev,
 489                          "    rx_rings[%i]: desc = %p\n",
 490                          i, rx_ring->desc);
 491                 dev_info(&pf->pdev->dev,
 492                          "    rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n",
 493                          i, rx_ring->dev,
 494                          rx_ring->netdev,
 495                          rx_ring->rx_bi);
 496                 dev_info(&pf->pdev->dev,
 497                          "    rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 498                          i, rx_ring->state,
 499                          rx_ring->queue_index,
 500                          rx_ring->reg_idx);
 501                 dev_info(&pf->pdev->dev,
 502                          "    rx_rings[%i]: rx_hdr_len = %d, rx_buf_len = %d, dtype = %d\n",
 503                          i, rx_ring->rx_hdr_len,
 504                          rx_ring->rx_buf_len,
 505                          rx_ring->dtype);
 506                 dev_info(&pf->pdev->dev,
 507                          "    rx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 508                          i, rx_ring->hsplit,
 509                          rx_ring->next_to_use,
 510                          rx_ring->next_to_clean,
 511                          rx_ring->ring_active);
 512                 dev_info(&pf->pdev->dev,
 513                          "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
 514                          i, rx_ring->stats.packets,
 515                          rx_ring->stats.bytes,
 516                          rx_ring->rx_stats.non_eop_descs);
 517                 dev_info(&pf->pdev->dev,
 518                          "    rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
 519                          i,
 520                          rx_ring->rx_stats.alloc_page_failed,
 521                          rx_ring->rx_stats.alloc_buff_failed);
 522                 dev_info(&pf->pdev->dev,
 523                          "    rx_rings[%i]: size = %i, dma = 0x%08lx\n",
 524                          i, rx_ring->size,
 525                          (long unsigned int)rx_ring->dma);
 526                 dev_info(&pf->pdev->dev,
 527                          "    rx_rings[%i]: vsi = %p, q_vector = %p\n",
 528                          i, rx_ring->vsi,
 529                          rx_ring->q_vector);
 530         }
 531         for (i = 0; i < vsi->num_queue_pairs; i++) {
 532                 struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
 533                 if (!tx_ring)
 534                         continue;
 535
 536                 dev_info(&pf->pdev->dev,
 537                          "    tx_rings[%i]: desc = %p\n",
 538                          i, tx_ring->desc);
 539                 dev_info(&pf->pdev->dev,
 540                          "    tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n",
 541                          i, tx_ring->dev,
 542                          tx_ring->netdev,
 543                          tx_ring->tx_bi);
 544                 dev_info(&pf->pdev->dev,
 545                          "    tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 546                          i, tx_ring->state,
 547                          tx_ring->queue_index,
 548                          tx_ring->reg_idx);
 549                 dev_info(&pf->pdev->dev,
 550                          "    tx_rings[%i]: dtype = %d\n",
 551                          i, tx_ring->dtype);
 552                 dev_info(&pf->pdev->dev,
 553                          "    tx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 554                          i, tx_ring->hsplit,
 555                          tx_ring->next_to_use,
 556                          tx_ring->next_to_clean,
 557                          tx_ring->ring_active);
 558                 dev_info(&pf->pdev->dev,
 559                          "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 560                          i, tx_ring->stats.packets,
 561                          tx_ring->stats.bytes,
 562                          tx_ring->tx_stats.restart_queue);
 563                 dev_info(&pf->pdev->dev,
 564                          "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
 565                          i,
 566                          tx_ring->tx_stats.tx_busy,
 567                          tx_ring->tx_stats.tx_done_old);
 568                 dev_info(&pf->pdev->dev,
 569                          "    tx_rings[%i]: size = %i, dma = 0x%08lx\n",
 570                          i, tx_ring->size,
 571                          (long unsigned int)tx_ring->dma);
 572                 dev_info(&pf->pdev->dev,
 573                          "    tx_rings[%i]: vsi = %p, q_vector = %p\n",
 574                          i, tx_ring->vsi,
 575                          tx_ring->q_vector);
 576                 dev_info(&pf->pdev->dev,
 577                          "    tx_rings[%i]: DCB tc = %d\n",
 578                          i, tx_ring->dcb_tc);
 579         }
 580         rcu_read_unlock();
 581         dev_info(&pf->pdev->dev,
 582                  "    work_limit = %d, rx_itr_setting = %d (%s), tx_itr_setting = %d (%s)\n",
 583                  vsi->work_limit, vsi->rx_itr_setting,
 584                  ITR_IS_DYNAMIC(vsi->rx_itr_setting) ? "dynamic" : "fixed",
 585                  vsi->tx_itr_setting,
 586                  ITR_IS_DYNAMIC(vsi->tx_itr_setting) ? "dynamic" : "fixed");
 587         dev_info(&pf->pdev->dev,
 588                  "    max_frame = %d, rx_hdr_len = %d, rx_buf_len = %d dtype = %d\n",
 589                  vsi->max_frame, vsi->rx_hdr_len, vsi->rx_buf_len, vsi->dtype);
 590         dev_info(&pf->pdev->dev,
 591                  "    num_q_vectors = %i, base_vector = %i\n",
 592                  vsi->num_q_vectors, vsi->base_vector);
 593         dev_info(&pf->pdev->dev,
 594                  "    seid = %d, id = %d, uplink_seid = %d\n",
 595                  vsi->seid, vsi->id, vsi->uplink_seid);
 596         dev_info(&pf->pdev->dev,
 597                  "    base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
 598                  vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
 599         dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 600         dev_info(&pf->pdev->dev,
 601                  "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 602                  vsi->info.valid_sections, vsi->info.switch_id);
 603         dev_info(&pf->pdev->dev,
 604                  "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 605                  vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 606         dev_info(&pf->pdev->dev,
 607                  "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 608                  vsi->info.sec_flags, vsi->info.sec_reserved);
 609         dev_info(&pf->pdev->dev,
 610                  "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 611                  vsi->info.pvid, vsi->info.fcoe_pvid,
 612                  vsi->info.port_vlan_flags);
 613         dev_info(&pf->pdev->dev,
 614                  "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 615                  vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 616                  vsi->info.pvlan_reserved[2]);
 617         dev_info(&pf->pdev->dev,
 618                  "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 619                  vsi->info.ingress_table, vsi->info.egress_table);
 620         dev_info(&pf->pdev->dev,
 621                  "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 622                  vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 623                  vsi->info.cas_pv_reserved);
 624         dev_info(&pf->pdev->dev,
 625                  "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 626                  vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 627                  vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 628                  vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 629                  vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 630         dev_info(&pf->pdev->dev,
 631                  "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 632                  vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 633                  vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 634                  vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 635                  vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 636         dev_info(&pf->pdev->dev,
 637                  "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 638                  vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 639                  vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 640                  vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 641                  vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 642         dev_info(&pf->pdev->dev,
 643                  "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 644                  vsi->info.queueing_opt_flags,
 645                  vsi->info.queueing_opt_reserved[0],
 646                  vsi->info.queueing_opt_reserved[1],
 647                  vsi->info.queueing_opt_reserved[2]);
 648         dev_info(&pf->pdev->dev,
 649                  "    info: up_enable_bits = 0x%02x\n",
 650                  vsi->info.up_enable_bits);
 651         dev_info(&pf->pdev->dev,
 652                  "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 653                  vsi->info.sched_reserved, vsi->info.outer_up_table);
 654         dev_info(&pf->pdev->dev,
 655                  "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 656                  vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 657                  vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 658                  vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 659                  vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 660         dev_info(&pf->pdev->dev,
 661                  "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 662                  vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 663                  vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 664                  vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 665                  vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 666         dev_info(&pf->pdev->dev,
 667                  "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 668                  vsi->info.stat_counter_idx, vsi->info.sched_id);
 669         dev_info(&pf->pdev->dev,
 670                  "    info: resp_reserved[] = 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n",
 671                  vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 672                  vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 673                  vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 674                  vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 675                  vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 676                  vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 677         if (vsi->back)
 678                 dev_info(&pf->pdev->dev, "    pf = %p\n", vsi->back);
 679         dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 680         dev_info(&pf->pdev->dev,
 681                  "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 682                  vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 683         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 684                 dev_info(&pf->pdev->dev,
 685                          "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 686                          i, vsi->tc_config.tc_info[i].qoffset,
 687                          vsi->tc_config.tc_info[i].qcount,
 688                          vsi->tc_config.tc_info[i].netdev_tc);
 689         }
 690         dev_info(&pf->pdev->dev,
 691                  "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 692                  vsi->bw_limit, vsi->bw_max_quanta);
 693         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 694                 dev_info(&pf->pdev->dev,
 695                          "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 696                          i, vsi->bw_ets_share_credits[i],
 697                          vsi->bw_ets_limit_credits[i],
 698                          vsi->bw_ets_max_quanta[i]);
 699         }
 700 }
 701
 702 /**
 703  * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 704  * @pf: the i40e_pf created in command write
 705  **/
 706 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 707 {
 708         struct i40e_adminq_ring *ring;
 709         struct i40e_hw *hw = &pf->hw;
 710         char hdr[32];
 711         int i;
 712
 713         snprintf(hdr, sizeof(hdr), "%s %s:         ",
 714                  dev_driver_string(&pf->pdev->dev),
 715                  dev_name(&pf->pdev->dev));
 716
 717         /* first the send (command) ring, then the receive (event) ring */
 718         dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 719         ring = &(hw->aq.asq);
 720         for (i = 0; i < ring->count; i++) {
 721                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 722                 dev_info(&pf->pdev->dev,
 723                          "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 724                          i, d->flags, d->opcode, d->datalen, d->retval,
 725                          d->cookie_high, d->cookie_low);
 726                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 727                                16, 1, d->params.raw, 16, 0);
 728         }
 729
 730         dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 731         ring = &(hw->aq.arq);
 732         for (i = 0; i < ring->count; i++) {
 733                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 734                 dev_info(&pf->pdev->dev,
 735                          "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 736                          i, d->flags, d->opcode, d->datalen, d->retval,
 737                          d->cookie_high, d->cookie_low);
 738                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 739                                16, 1, d->params.raw, 16, 0);
 740         }
 741 }
 742
 743 /**
 744  * i40e_dbg_dump_desc - handles dump desc write into command datum
 745  * @cnt: number of arguments that the user supplied
 746  * @vsi_seid: vsi id entered by user
 747  * @ring_id: ring id entered by user
 748  * @desc_n: descriptor number entered by user
 749  * @pf: the i40e_pf created in command write
 750  * @is_rx_ring: true if rx, false if tx
 751  **/
 752 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 753                                struct i40e_pf *pf, bool is_rx_ring)
 754 {
 755         struct i40e_tx_desc *txd;
 756         union i40e_rx_desc *rxd;
 757         struct i40e_ring *ring;
 758         struct i40e_vsi *vsi;
 759         int i;
 760
 761         vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 762         if (!vsi) {
 763                 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 764                 return;
 765         }
 766         if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 767                 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 768                 return;
 769         }
 770         if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
 771                 dev_info(&pf->pdev->dev,
 772                          "descriptor rings have not been allocated for vsi %d\n",
 773                          vsi_seid);
 774                 return;
 775         }
 776
 777         ring = kmemdup(is_rx_ring
 778                        ? vsi->rx_rings[ring_id] : vsi->tx_rings[ring_id],
 779                        sizeof(*ring), GFP_KERNEL);
 780         if (!ring)
 781                 return;
 782
 783         if (cnt == 2) {
 784                 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 785                          vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
 786                 for (i = 0; i < ring->count; i++) {
 787                         if (!is_rx_ring) {
 788                                 txd = I40E_TX_DESC(ring, i);
 789                                 dev_info(&pf->pdev->dev,
 790                                          "   d[%03i] = 0x%016llx 0x%016llx\n",
 791                                          i, txd->buffer_addr,
 792                                          txd->cmd_type_offset_bsz);
 793                         } else if (sizeof(union i40e_rx_desc) ==
 794                                    sizeof(union i40e_16byte_rx_desc)) {
 795                                 rxd = I40E_RX_DESC(ring, i);
 796                                 dev_info(&pf->pdev->dev,
 797                                          "   d[%03i] = 0x%016llx 0x%016llx\n",
 798                                          i, rxd->read.pkt_addr,
 799                                          rxd->read.hdr_addr);
 800                         } else {
 801                                 rxd = I40E_RX_DESC(ring, i);
 802                                 dev_info(&pf->pdev->dev,
 803                                          "   d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 804                                          i, rxd->read.pkt_addr,
 805                                          rxd->read.hdr_addr,
 806                                          rxd->read.rsvd1, rxd->read.rsvd2);
 807                         }
 808                 }
 809         } else if (cnt == 3) {
 810                 if (desc_n >= ring->count || desc_n < 0) {
 811                         dev_info(&pf->pdev->dev,
 812                                  "descriptor %d not found\n", desc_n);
 813                         return;
 814                 }
 815                 if (!is_rx_ring) {
 816                         txd = I40E_TX_DESC(ring, desc_n);
 817                         dev_info(&pf->pdev->dev,
 818                                  "vsi = %02i tx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
 819                                  vsi_seid, ring_id, desc_n,
 820                                  txd->buffer_addr, txd->cmd_type_offset_bsz);
 821                 } else if (sizeof(union i40e_rx_desc) ==
 822                            sizeof(union i40e_16byte_rx_desc)) {
 823                         rxd = I40E_RX_DESC(ring, desc_n);
 824                         dev_info(&pf->pdev->dev,
 825                                  "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
 826                                  vsi_seid, ring_id, desc_n,
 827                                  rxd->read.pkt_addr, rxd->read.hdr_addr);
 828                 } else {
 829                         rxd = I40E_RX_DESC(ring, desc_n);
 830                         dev_info(&pf->pdev->dev,
 831                                  "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 832                                  vsi_seid, ring_id, desc_n,
 833                                  rxd->read.pkt_addr, rxd->read.hdr_addr,
 834                                  rxd->read.rsvd1, rxd->read.rsvd2);
 835                 }
 836         } else {
 837                 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
 838         }
 839         kfree(ring);
 840 }
 841
 842 /**
 843  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 844  * @pf: the i40e_pf created in command write
 845  **/
 846 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 847 {
 848         int i;
 849
 850         for (i = 0; i < pf->num_alloc_vsi; i++)
 851                 if (pf->vsi[i])
 852                         dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 853                                  i, pf->vsi[i]->seid);
 854 }
 855
 856 /**
 857  * i40e_dbg_dump_stats - handles dump stats write into command datum
 858  * @pf: the i40e_pf created in command write
 859  * @estats: the eth stats structure to be dumped
 860  **/
 861 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 862                                     struct i40e_eth_stats *estats)
 863 {
 864         dev_info(&pf->pdev->dev, "  ethstats:\n");
 865         dev_info(&pf->pdev->dev,
 866                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 867                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 868         dev_info(&pf->pdev->dev,
 869                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
 870                  estats->rx_broadcast, estats->rx_discards);
 871         dev_info(&pf->pdev->dev,
 872                  "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 873                  estats->rx_unknown_protocol, estats->tx_bytes);
 874         dev_info(&pf->pdev->dev,
 875                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 876                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 877         dev_info(&pf->pdev->dev,
 878                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 879                  estats->tx_discards, estats->tx_errors);
 880 }
 881
 882 /**
 883  * i40e_dbg_dump_stats - handles dump stats write into command datum
 884  * @pf: the i40e_pf created in command write
 885  * @stats: the stats structure to be dumped
 886  **/
 887 static void i40e_dbg_dump_stats(struct i40e_pf *pf,
 888                                 struct i40e_hw_port_stats *stats)
 889 {
 890         int i;
 891
 892         dev_info(&pf->pdev->dev, "  stats:\n");
 893         dev_info(&pf->pdev->dev,
 894                  "    crc_errors = \t\t%lld \tillegal_bytes = \t%lld \terror_bytes = \t\t%lld\n",
 895                  stats->crc_errors, stats->illegal_bytes, stats->error_bytes);
 896         dev_info(&pf->pdev->dev,
 897                  "    mac_local_faults = \t%lld \tmac_remote_faults = \t%lld \trx_length_errors = \t%lld\n",
 898                  stats->mac_local_faults, stats->mac_remote_faults,
 899                  stats->rx_length_errors);
 900         dev_info(&pf->pdev->dev,
 901                  "    link_xon_rx = \t\t%lld \tlink_xoff_rx = \t\t%lld \tlink_xon_tx = \t\t%lld\n",
 902                  stats->link_xon_rx, stats->link_xoff_rx, stats->link_xon_tx);
 903         dev_info(&pf->pdev->dev,
 904                  "    link_xoff_tx = \t\t%lld \trx_size_64 = \t\t%lld \trx_size_127 = \t\t%lld\n",
 905                  stats->link_xoff_tx, stats->rx_size_64, stats->rx_size_127);
 906         dev_info(&pf->pdev->dev,
 907                  "    rx_size_255 = \t\t%lld \trx_size_511 = \t\t%lld \trx_size_1023 = \t\t%lld\n",
 908                  stats->rx_size_255, stats->rx_size_511, stats->rx_size_1023);
 909         dev_info(&pf->pdev->dev,
 910                  "    rx_size_big = \t\t%lld \trx_undersize = \t\t%lld \trx_jabber = \t\t%lld\n",
 911                  stats->rx_size_big, stats->rx_undersize, stats->rx_jabber);
 912         dev_info(&pf->pdev->dev,
 913                  "    rx_fragments = \t\t%lld \trx_oversize = \t\t%lld \ttx_size_64 = \t\t%lld\n",
 914                  stats->rx_fragments, stats->rx_oversize, stats->tx_size_64);
 915         dev_info(&pf->pdev->dev,
 916                  "    tx_size_127 = \t\t%lld \ttx_size_255 = \t\t%lld \ttx_size_511 = \t\t%lld\n",
 917                  stats->tx_size_127, stats->tx_size_255, stats->tx_size_511);
 918         dev_info(&pf->pdev->dev,
 919                  "    tx_size_1023 = \t\t%lld \ttx_size_big = \t\t%lld \tmac_short_packet_dropped = \t%lld\n",
 920                  stats->tx_size_1023, stats->tx_size_big,
 921                  stats->mac_short_packet_dropped);
 922         for (i = 0; i < 8; i += 4) {
 923                 dev_info(&pf->pdev->dev,
 924                          "    priority_xon_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 925                          i, stats->priority_xon_rx[i],
 926                          i+1, stats->priority_xon_rx[i+1],
 927                          i+2, stats->priority_xon_rx[i+2],
 928                          i+3, stats->priority_xon_rx[i+3]);
 929         }
 930         for (i = 0; i < 8; i += 4) {
 931                 dev_info(&pf->pdev->dev,
 932                          "    priority_xoff_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 933                          i, stats->priority_xoff_rx[i],
 934                          i+1, stats->priority_xoff_rx[i+1],
 935                          i+2, stats->priority_xoff_rx[i+2],
 936                          i+3, stats->priority_xoff_rx[i+3]);
 937         }
 938         for (i = 0; i < 8; i += 4) {
 939                 dev_info(&pf->pdev->dev,
 940                          "    priority_xon_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 941                          i, stats->priority_xon_tx[i],
 942                          i+1, stats->priority_xon_tx[i+1],
 943                          i+2, stats->priority_xon_tx[i+2],
 944                          i+3, stats->priority_xon_rx[i+3]);
 945         }
 946         for (i = 0; i < 8; i += 4) {
 947                 dev_info(&pf->pdev->dev,
 948                          "    priority_xoff_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 949                          i, stats->priority_xoff_tx[i],
 950                          i+1, stats->priority_xoff_tx[i+1],
 951                          i+2, stats->priority_xoff_tx[i+2],
 952                          i+3, stats->priority_xoff_tx[i+3]);
 953         }
 954         for (i = 0; i < 8; i += 4) {
 955                 dev_info(&pf->pdev->dev,
 956                          "    priority_xon_2_xoff[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 957                          i, stats->priority_xon_2_xoff[i],
 958                          i+1, stats->priority_xon_2_xoff[i+1],
 959                          i+2, stats->priority_xon_2_xoff[i+2],
 960                          i+3, stats->priority_xon_2_xoff[i+3]);
 961         }
 962
 963         i40e_dbg_dump_eth_stats(pf, &stats->eth);
 964 }
 965
 966 /**
 967  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 968  * @pf: the i40e_pf created in command write
 969  * @seid: the seid the user put in
 970  **/
 971 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 972 {
 973         struct i40e_veb *veb;
 974
 975         if ((seid < I40E_BASE_VEB_SEID) ||
 976             (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
 977                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
 978                 return;
 979         }
 980
 981         veb = i40e_dbg_find_veb(pf, seid);
 982         if (!veb) {
 983                 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 984                 return;
 985         }
 986         dev_info(&pf->pdev->dev,
 987                  "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d\n",
 988                  veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 989                  veb->uplink_seid);
 990         i40e_dbg_dump_eth_stats(pf, &veb->stats);
 991 }
 992
 993 /**
 994  * i40e_dbg_dump_veb_all - dumps all known veb's stats
 995  * @pf: the i40e_pf created in command write
 996  **/
 997 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 998 {
 999         struct i40e_veb *veb;
1000         int i;
1001
1002         for (i = 0; i < I40E_MAX_VEB; i++) {
1003                 veb = pf->veb[i];
1004                 if (veb)
1005                         i40e_dbg_dump_veb_seid(pf, veb->seid);
1006         }
1007 }
1008
1009 /**
1010  * i40e_dbg_cmd_fd_ctrl - Enable/disable FD sideband/ATR
1011  * @pf: the pf that would be altered
1012  * @flag: flag that needs enabling or disabling
1013  * @enable: Enable/disable FD SD/ATR
1014  **/
1015 static void i40e_dbg_cmd_fd_ctrl(struct i40e_pf *pf, u64 flag, bool enable)
1016 {
1017         if (enable) {
1018                 pf->flags |= flag;
1019         } else {
1020                 pf->flags &= ~flag;
1021                 pf->auto_disable_flags |= flag;
1022         }
1023         dev_info(&pf->pdev->dev, "requesting a pf reset\n");
1024         i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
1025 }
1026
1027 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
1028 /**
1029  * i40e_dbg_command_write - write into command datum
1030  * @filp: the opened file
1031  * @buffer: where to find the user's data
1032  * @count: the length of the user's data
1033  * @ppos: file position offset
1034  **/
1035 static ssize_t i40e_dbg_command_write(struct file *filp,
1036                                       const char __user *buffer,
1037                                       size_t count, loff_t *ppos)
1038 {
1039         struct i40e_pf *pf = filp->private_data;
1040         char *cmd_buf, *cmd_buf_tmp;
1041         int bytes_not_copied;
1042         struct i40e_vsi *vsi;
1043         int vsi_seid;
1044         int veb_seid;
1045         int cnt;
1046
1047         /* don't allow partial writes */
1048         if (*ppos != 0)
1049                 return 0;
1050
1051         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
1052         if (!cmd_buf)
1053                 return count;
1054         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
1055         if (bytes_not_copied < 0)
1056                 return bytes_not_copied;
1057         if (bytes_not_copied > 0)
1058                 count -= bytes_not_copied;
1059         cmd_buf[count] = '\0';
1060
1061         cmd_buf_tmp = strchr(cmd_buf, '\n');
1062         if (cmd_buf_tmp) {
1063                 *cmd_buf_tmp = '\0';
1064                 count = cmd_buf_tmp - cmd_buf + 1;
1065         }
1066
1067         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
1068                 vsi_seid = -1;
1069                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1070                 if (cnt == 0) {
1071                         /* default to PF VSI */
1072                         vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1073                 } else if (vsi_seid < 0) {
1074                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1075                                  vsi_seid);
1076                         goto command_write_done;
1077                 }
1078
1079                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1080                 if (vsi)
1081                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1082                                  vsi->seid, vsi->uplink_seid);
1083                 else
1084                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1085
1086         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1087                 sscanf(&cmd_buf[7], "%i", &vsi_seid);
1088                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1089                 if (!vsi) {
1090                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1091                                  vsi_seid);
1092                         goto command_write_done;
1093                 }
1094
1095                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1096                 i40e_vsi_release(vsi);
1097
1098         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1099                 struct i40e_veb *veb;
1100                 int uplink_seid, i;
1101
1102                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1103                 if (cnt != 2) {
1104                         dev_info(&pf->pdev->dev,
1105                                  "add relay: bad command string, cnt=%d\n",
1106                                  cnt);
1107                         goto command_write_done;
1108                 } else if (uplink_seid < 0) {
1109                         dev_info(&pf->pdev->dev,
1110                                  "add relay %d: bad uplink seid\n",
1111                                  uplink_seid);
1112                         goto command_write_done;
1113                 }
1114
1115                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1116                 if (!vsi) {
1117                         dev_info(&pf->pdev->dev,
1118                                  "add relay: VSI %d not found\n", vsi_seid);
1119                         goto command_write_done;
1120                 }
1121
1122                 for (i = 0; i < I40E_MAX_VEB; i++)
1123                         if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1124                                 break;
1125                 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1126                     uplink_seid != pf->mac_seid) {
1127                         dev_info(&pf->pdev->dev,
1128                                  "add relay: relay uplink %d not found\n",
1129                                  uplink_seid);
1130                         goto command_write_done;
1131                 }
1132
1133                 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1134                                      vsi->tc_config.enabled_tc);
1135                 if (veb)
1136                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1137                 else
1138                         dev_info(&pf->pdev->dev, "add relay failed\n");
1139
1140         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1141                 int i;
1142                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1143                 if (cnt != 1) {
1144                         dev_info(&pf->pdev->dev,
1145                                  "del relay: bad command string, cnt=%d\n",
1146                                  cnt);
1147                         goto command_write_done;
1148                 } else if (veb_seid < 0) {
1149                         dev_info(&pf->pdev->dev,
1150                                  "del relay %d: bad relay seid\n", veb_seid);
1151                         goto command_write_done;
1152                 }
1153
1154                 /* find the veb */
1155                 for (i = 0; i < I40E_MAX_VEB; i++)
1156                         if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1157                                 break;
1158                 if (i >= I40E_MAX_VEB) {
1159                         dev_info(&pf->pdev->dev,
1160                                  "del relay: relay %d not found\n", veb_seid);
1161                         goto command_write_done;
1162                 }
1163
1164                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1165                 i40e_veb_release(pf->veb[i]);
1166
1167         } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
1168                 struct i40e_mac_filter *f;
1169                 int vlan = 0;
1170                 u8 ma[6];
1171                 int ret;
1172
1173                 cnt = sscanf(&cmd_buf[11],
1174                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1175                              &vsi_seid,
1176                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1177                              &vlan);
1178                 if (cnt == 7) {
1179                         vlan = 0;
1180                 } else if (cnt != 8) {
1181                         dev_info(&pf->pdev->dev,
1182                                  "add macaddr: bad command string, cnt=%d\n",
1183                                  cnt);
1184                         goto command_write_done;
1185                 }
1186
1187                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1188                 if (!vsi) {
1189                         dev_info(&pf->pdev->dev,
1190                                  "add macaddr: VSI %d not found\n", vsi_seid);
1191                         goto command_write_done;
1192                 }
1193
1194                 f = i40e_add_filter(vsi, ma, vlan, false, false);
1195                 ret = i40e_sync_vsi_filters(vsi);
1196                 if (f && !ret)
1197                         dev_info(&pf->pdev->dev,
1198                                  "add macaddr: %pM vlan=%d added to VSI %d\n",
1199                                  ma, vlan, vsi_seid);
1200                 else
1201                         dev_info(&pf->pdev->dev,
1202                                  "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1203                                  ma, vlan, vsi_seid, f, ret);
1204
1205         } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
1206                 int vlan = 0;
1207                 u8 ma[6];
1208                 int ret;
1209
1210                 cnt = sscanf(&cmd_buf[11],
1211                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1212                              &vsi_seid,
1213                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1214                              &vlan);
1215                 if (cnt == 7) {
1216                         vlan = 0;
1217                 } else if (cnt != 8) {
1218                         dev_info(&pf->pdev->dev,
1219                                  "del macaddr: bad command string, cnt=%d\n",
1220                                  cnt);
1221                         goto command_write_done;
1222                 }
1223
1224                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1225                 if (!vsi) {
1226                         dev_info(&pf->pdev->dev,
1227                                  "del macaddr: VSI %d not found\n", vsi_seid);
1228                         goto command_write_done;
1229                 }
1230
1231                 i40e_del_filter(vsi, ma, vlan, false, false);
1232                 ret = i40e_sync_vsi_filters(vsi);
1233                 if (!ret)
1234                         dev_info(&pf->pdev->dev,
1235                                  "del macaddr: %pM vlan=%d removed from VSI %d\n",
1236                                  ma, vlan, vsi_seid);
1237                 else
1238                         dev_info(&pf->pdev->dev,
1239                                  "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1240                                  ma, vlan, vsi_seid, ret);
1241
1242         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
1243                 i40e_status ret;
1244                 u16 vid;
1245                 int v;
1246
1247                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1248                 if (cnt != 2) {
1249                         dev_info(&pf->pdev->dev,
1250                                  "add pvid: bad command string, cnt=%d\n", cnt);
1251                         goto command_write_done;
1252                 }
1253
1254                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1255                 if (!vsi) {
1256                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1257                                  vsi_seid);
1258                         goto command_write_done;
1259                 }
1260
1261                 vid = (unsigned)v;
1262                 ret = i40e_vsi_add_pvid(vsi, vid);
1263                 if (!ret)
1264                         dev_info(&pf->pdev->dev,
1265                                  "add pvid: %d added to VSI %d\n",
1266                                  vid, vsi_seid);
1267                 else
1268                         dev_info(&pf->pdev->dev,
1269                                  "add pvid: %d to VSI %d failed, ret=%d\n",
1270                                  vid, vsi_seid, ret);
1271
1272         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1273
1274                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1275                 if (cnt != 1) {
1276                         dev_info(&pf->pdev->dev,
1277                                  "del pvid: bad command string, cnt=%d\n",
1278                                  cnt);
1279                         goto command_write_done;
1280                 }
1281
1282                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1283                 if (!vsi) {
1284                         dev_info(&pf->pdev->dev,
1285                                  "del pvid: VSI %d not found\n", vsi_seid);
1286                         goto command_write_done;
1287                 }
1288
1289                 i40e_vsi_remove_pvid(vsi);
1290                 dev_info(&pf->pdev->dev,
1291                          "del pvid: removed from VSI %d\n", vsi_seid);
1292
1293         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1294                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1295                         i40e_fetch_switch_configuration(pf, true);
1296                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1297                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1298                         if (cnt > 0)
1299                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1300                         else
1301                                 i40e_dbg_dump_vsi_no_seid(pf);
1302                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1303                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1304                         if (cnt > 0)
1305                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1306                         else
1307                                 i40e_dbg_dump_veb_all(pf);
1308                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1309                         int ring_id, desc_n;
1310                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
1311                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1312                                              &vsi_seid, &ring_id, &desc_n);
1313                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1314                                                    desc_n, pf, true);
1315                         } else if (strncmp(&cmd_buf[10], "tx", 2)
1316                                         == 0) {
1317                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1318                                              &vsi_seid, &ring_id, &desc_n);
1319                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1320                                                    desc_n, pf, false);
1321                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1322                                 i40e_dbg_dump_aq_desc(pf);
1323                         } else {
1324                                 dev_info(&pf->pdev->dev,
1325                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1326                                 dev_info(&pf->pdev->dev,
1327                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1328                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
1329                         }
1330                 } else if (strncmp(&cmd_buf[5], "stats", 5) == 0) {
1331                         dev_info(&pf->pdev->dev, "pf stats:\n");
1332                         i40e_dbg_dump_stats(pf, &pf->stats);
1333                         dev_info(&pf->pdev->dev, "pf stats_offsets:\n");
1334                         i40e_dbg_dump_stats(pf, &pf->stats_offsets);
1335                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1336                         dev_info(&pf->pdev->dev,
1337                                  "core reset count: %d\n", pf->corer_count);
1338                         dev_info(&pf->pdev->dev,
1339                                  "global reset count: %d\n", pf->globr_count);
1340                         dev_info(&pf->pdev->dev,
1341                                  "emp reset count: %d\n", pf->empr_count);
1342                         dev_info(&pf->pdev->dev,
1343                                  "pf reset count: %d\n", pf->pfr_count);
1344                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1345                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
1346                         struct i40e_dcbx_config *cfg =
1347                                                 &pf->hw.local_dcbx_config;
1348                         struct i40e_dcbx_config *r_cfg =
1349                                                 &pf->hw.remote_dcbx_config;
1350                         int i, ret;
1351
1352                         bw_data = kzalloc(sizeof(
1353                                     struct i40e_aqc_query_port_ets_config_resp),
1354                                           GFP_KERNEL);
1355                         if (!bw_data) {
1356                                 ret = -ENOMEM;
1357                                 goto command_write_done;
1358                         }
1359
1360                         ret = i40e_aq_query_port_ets_config(&pf->hw,
1361                                                             pf->mac_seid,
1362                                                             bw_data, NULL);
1363                         if (ret) {
1364                                 dev_info(&pf->pdev->dev,
1365                                          "Query Port ETS Config AQ command failed =0x%x\n",
1366                                          pf->hw.aq.asq_last_status);
1367                                 kfree(bw_data);
1368                                 bw_data = NULL;
1369                                 goto command_write_done;
1370                         }
1371                         dev_info(&pf->pdev->dev,
1372                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1373                                  bw_data->tc_valid_bits,
1374                                  bw_data->tc_strict_priority_bits,
1375                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1376                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1377                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1378                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1379                                          bw_data->tc_bw_share_credits[i],
1380                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1381                         }
1382
1383                         kfree(bw_data);
1384                         bw_data = NULL;
1385
1386                         dev_info(&pf->pdev->dev,
1387                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1388                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1389                                  cfg->etscfg.maxtcs);
1390                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1391                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1392                                          i, cfg->etscfg.prioritytable[i],
1393                                          cfg->etscfg.tcbwtable[i],
1394                                          cfg->etscfg.tsatable[i]);
1395                         }
1396                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1397                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1398                                          i, cfg->etsrec.prioritytable[i],
1399                                          cfg->etsrec.tcbwtable[i],
1400                                          cfg->etsrec.tsatable[i]);
1401                         }
1402                         dev_info(&pf->pdev->dev,
1403                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1404                                  cfg->pfc.willing, cfg->pfc.mbc,
1405                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1406                         dev_info(&pf->pdev->dev,
1407                                  "port app_table: num_apps=%d\n", cfg->numapps);
1408                         for (i = 0; i < cfg->numapps; i++) {
1409                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1410                                          i, cfg->app[i].priority,
1411                                          cfg->app[i].selector,
1412                                          cfg->app[i].protocolid);
1413                         }
1414                         /* Peer TLV DCBX data */
1415                         dev_info(&pf->pdev->dev,
1416                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1417                                  r_cfg->etscfg.willing,
1418                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1419                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1420                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1421                                          i, r_cfg->etscfg.prioritytable[i],
1422                                          r_cfg->etscfg.tcbwtable[i],
1423                                          r_cfg->etscfg.tsatable[i]);
1424                         }
1425                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1426                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1427                                          i, r_cfg->etsrec.prioritytable[i],
1428                                          r_cfg->etsrec.tcbwtable[i],
1429                                          r_cfg->etsrec.tsatable[i]);
1430                         }
1431                         dev_info(&pf->pdev->dev,
1432                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1433                                  r_cfg->pfc.willing,
1434                                  r_cfg->pfc.mbc,
1435                                  r_cfg->pfc.pfccap,
1436                                  r_cfg->pfc.pfcenable);
1437                         dev_info(&pf->pdev->dev,
1438                                  "remote port app_table: num_apps=%d\n",
1439                                  r_cfg->numapps);
1440                         for (i = 0; i < r_cfg->numapps; i++) {
1441                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1442                                          i, r_cfg->app[i].priority,
1443                                          r_cfg->app[i].selector,
1444                                          r_cfg->app[i].protocolid);
1445                         }
1446                 } else {
1447                         dev_info(&pf->pdev->dev,
1448                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1449                         dev_info(&pf->pdev->dev, "dump switch, dump vsi [seid] or\n");
1450                         dev_info(&pf->pdev->dev, "dump stats\n");
1451                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1452                         dev_info(&pf->pdev->dev, "dump port\n");
1453                         dev_info(&pf->pdev->dev,
1454                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1455                 }
1456
1457         } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1458                 u32 level;
1459                 cnt = sscanf(&cmd_buf[10], "%i", &level);
1460                 if (cnt) {
1461                         if (I40E_DEBUG_USER & level) {
1462                                 pf->hw.debug_mask = level;
1463                                 dev_info(&pf->pdev->dev,
1464                                          "set hw.debug_mask = 0x%08x\n",
1465                                          pf->hw.debug_mask);
1466                         }
1467                         pf->msg_enable = level;
1468                         dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1469                                  pf->msg_enable);
1470                 } else {
1471                         dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1472                                  pf->msg_enable);
1473                 }
1474         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1475                 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1476                 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
1477
1478         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1479                 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1480                 i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED));
1481
1482         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1483                 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1484                 i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED));
1485
1486         } else if (strncmp(cmd_buf, "empr", 4) == 0) {
1487                 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
1488                 i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED));
1489
1490         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1491                 u32 address;
1492                 u32 value;
1493                 cnt = sscanf(&cmd_buf[4], "%i", &address);
1494                 if (cnt != 1) {
1495                         dev_info(&pf->pdev->dev, "read <reg>\n");
1496                         goto command_write_done;
1497                 }
1498
1499                 /* check the range on address */
1500                 if (address >= I40E_MAX_REGISTER) {
1501                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n",
1502                                  address);
1503                         goto command_write_done;
1504                 }
1505
1506                 value = rd32(&pf->hw, address);
1507                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1508                          address, value);
1509
1510         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1511                 u32 address, value;
1512                 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1513                 if (cnt != 2) {
1514                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1515                         goto command_write_done;
1516                 }
1517
1518                 /* check the range on address */
1519                 if (address >= I40E_MAX_REGISTER) {
1520                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n",
1521                                  address);
1522                         goto command_write_done;
1523                 }
1524                 wr32(&pf->hw, address, value);
1525                 value = rd32(&pf->hw, address);
1526                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1527                          address, value);
1528         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1529                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1530                         cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1531                         if (cnt == 0) {
1532                                 int i;
1533                                 for (i = 0; i < pf->num_alloc_vsi; i++)
1534                                         i40e_vsi_reset_stats(pf->vsi[i]);
1535                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1536                         } else if (cnt == 1) {
1537                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1538                                 if (!vsi) {
1539                                         dev_info(&pf->pdev->dev,
1540                                                  "clear_stats vsi: bad vsi %d\n",
1541                                                  vsi_seid);
1542                                         goto command_write_done;
1543                                 }
1544                                 i40e_vsi_reset_stats(vsi);
1545                                 dev_info(&pf->pdev->dev,
1546                                          "vsi clear stats called for vsi %d\n",
1547                                          vsi_seid);
1548                         } else {
1549                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1550                         }
1551                 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) {
1552                         i40e_pf_reset_stats(pf);
1553                         dev_info(&pf->pdev->dev, "pf clear stats called\n");
1554                 } else {
1555                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n");
1556                 }
1557         } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1558                 struct i40e_aq_desc *desc;
1559                 i40e_status ret;
1560
1561                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1562                 if (!desc)
1563                         goto command_write_done;
1564                 cnt = sscanf(&cmd_buf[11],
1565                              "%hx %hx %hx %hx %x %x %x %x %x %x",
1566                              &desc->flags,
1567                              &desc->opcode, &desc->datalen, &desc->retval,
1568                              &desc->cookie_high, &desc->cookie_low,
1569                              &desc->params.internal.param0,
1570                              &desc->params.internal.param1,
1571                              &desc->params.internal.param2,
1572                              &desc->params.internal.param3);
1573                 if (cnt != 10) {
1574                         dev_info(&pf->pdev->dev,
1575                                  "send aq_cmd: bad command string, cnt=%d\n",
1576                                  cnt);
1577                         kfree(desc);
1578                         desc = NULL;
1579                         goto command_write_done;
1580                 }
1581                 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1582                 if (!ret) {
1583                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1584                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1585                         dev_info(&pf->pdev->dev,
1586                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1587                                  desc->opcode, pf->hw.aq.asq_last_status);
1588                 } else {
1589                         dev_info(&pf->pdev->dev,
1590                                  "AQ command send failed Opcode %x Status: %d\n",
1591                                  desc->opcode, ret);
1592                 }
1593                 dev_info(&pf->pdev->dev,
1594                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1595                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1596                          desc->cookie_high, desc->cookie_low,
1597                          desc->params.internal.param0,
1598                          desc->params.internal.param1,
1599                          desc->params.internal.param2,
1600                          desc->params.internal.param3);
1601                 kfree(desc);
1602                 desc = NULL;
1603         } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1604                 struct i40e_aq_desc *desc;
1605                 i40e_status ret;
1606                 u16 buffer_len;
1607                 u8 *buff;
1608
1609                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1610                 if (!desc)
1611                         goto command_write_done;
1612                 cnt = sscanf(&cmd_buf[20],
1613                              "%hx %hx %hx %hx %x %x %x %x %x %x %hd",
1614                              &desc->flags,
1615                              &desc->opcode, &desc->datalen, &desc->retval,
1616                              &desc->cookie_high, &desc->cookie_low,
1617                              &desc->params.internal.param0,
1618                              &desc->params.internal.param1,
1619                              &desc->params.internal.param2,
1620                              &desc->params.internal.param3,
1621                              &buffer_len);
1622                 if (cnt != 11) {
1623                         dev_info(&pf->pdev->dev,
1624                                  "send indirect aq_cmd: bad command string, cnt=%d\n",
1625                                  cnt);
1626                         kfree(desc);
1627                         desc = NULL;
1628                         goto command_write_done;
1629                 }
1630                 /* Just stub a buffer big enough in case user messed up */
1631                 if (buffer_len == 0)
1632                         buffer_len = 1280;
1633
1634                 buff = kzalloc(buffer_len, GFP_KERNEL);
1635                 if (!buff) {
1636                         kfree(desc);
1637                         desc = NULL;
1638                         goto command_write_done;
1639                 }
1640                 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1641                 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1642                                             buffer_len, NULL);
1643                 if (!ret) {
1644                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1645                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1646                         dev_info(&pf->pdev->dev,
1647                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1648                                  desc->opcode, pf->hw.aq.asq_last_status);
1649                 } else {
1650                         dev_info(&pf->pdev->dev,
1651                                  "AQ command send failed Opcode %x Status: %d\n",
1652                                  desc->opcode, ret);
1653                 }
1654                 dev_info(&pf->pdev->dev,
1655                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1656                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1657                          desc->cookie_high, desc->cookie_low,
1658                          desc->params.internal.param0,
1659                          desc->params.internal.param1,
1660                          desc->params.internal.param2,
1661                          desc->params.internal.param3);
1662                 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1663                                DUMP_PREFIX_OFFSET, 16, 1,
1664                                buff, buffer_len, true);
1665                 kfree(buff);
1666                 buff = NULL;
1667                 kfree(desc);
1668                 desc = NULL;
1669         } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1670                    (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
1671                 struct i40e_fdir_filter fd_data;
1672                 u16 packet_len, i, j = 0;
1673                 char *asc_packet;
1674                 u8 *raw_packet;
1675                 bool add = false;
1676                 int ret;
1677
1678                 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
1679                         goto command_write_done;
1680
1681                 if (strncmp(cmd_buf, "add", 3) == 0)
1682                         add = true;
1683
1684                 if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED))
1685                         goto command_write_done;
1686
1687                 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1688                                      GFP_KERNEL);
1689                 if (!asc_packet)
1690                         goto command_write_done;
1691
1692                 raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1693                                      GFP_KERNEL);
1694
1695                 if (!raw_packet) {
1696                         kfree(asc_packet);
1697                         asc_packet = NULL;
1698                         goto command_write_done;
1699                 }
1700
1701                 cnt = sscanf(&cmd_buf[13],
1702                              "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s",
1703                              &fd_data.q_index,
1704                              &fd_data.flex_off, &fd_data.pctype,
1705                              &fd_data.dest_vsi, &fd_data.dest_ctl,
1706                              &fd_data.fd_status, &fd_data.cnt_index,
1707                              &fd_data.fd_id, &packet_len, asc_packet);
1708                 if (cnt != 10) {
1709                         dev_info(&pf->pdev->dev,
1710                                  "program fd_filter: bad command string, cnt=%d\n",
1711                                  cnt);
1712                         kfree(asc_packet);
1713                         asc_packet = NULL;
1714                         kfree(raw_packet);
1715                         goto command_write_done;
1716                 }
1717
1718                 /* fix packet length if user entered 0 */
1719                 if (packet_len == 0)
1720                         packet_len = I40E_FDIR_MAX_RAW_PACKET_SIZE;
1721
1722                 /* make sure to check the max as well */
1723                 packet_len = min_t(u16,
1724                                    packet_len, I40E_FDIR_MAX_RAW_PACKET_SIZE);
1725
1726                 for (i = 0; i < packet_len; i++) {
1727                         sscanf(&asc_packet[j], "%2hhx ",
1728                                &raw_packet[i]);
1729                         j += 3;
1730                 }
1731                 dev_info(&pf->pdev->dev, "FD raw packet dump\n");
1732                 print_hex_dump(KERN_INFO, "FD raw packet: ",
1733                                DUMP_PREFIX_OFFSET, 16, 1,
1734                                raw_packet, packet_len, true);
1735                 ret = i40e_program_fdir_filter(&fd_data, raw_packet, pf, add);
1736                 if (!ret) {
1737                         dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1738                 } else {
1739                         dev_info(&pf->pdev->dev,
1740                                  "Filter command send failed %d\n", ret);
1741                 }
1742                 kfree(raw_packet);
1743                 raw_packet = NULL;
1744                 kfree(asc_packet);
1745                 asc_packet = NULL;
1746         } else if (strncmp(cmd_buf, "fd-atr off", 10) == 0) {
1747                 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, false);
1748         } else if (strncmp(cmd_buf, "fd-atr on", 9) == 0) {
1749                 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, true);
1750         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1751                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1752                         int ret;
1753                         ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1754                         if (ret) {
1755                                 dev_info(&pf->pdev->dev,
1756                                          "Stop LLDP AQ command failed =0x%x\n",
1757                                          pf->hw.aq.asq_last_status);
1758                                 goto command_write_done;
1759                         }
1760                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1761                                                 pf->hw.mac.addr,
1762                                                 I40E_ETH_P_LLDP, 0,
1763                                                 pf->vsi[pf->lan_vsi]->seid,
1764                                                 0, true, NULL, NULL);
1765                         if (ret) {
1766                                 dev_info(&pf->pdev->dev,
1767                                         "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1768                                         __func__, pf->hw.aq.asq_last_status);
1769                                 goto command_write_done;
1770                         }
1771 #ifdef CONFIG_I40E_DCB
1772                         pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1773                                        DCB_CAP_DCBX_VER_IEEE;
1774 #endif /* CONFIG_I40E_DCB */
1775                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1776                         int ret;
1777                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1778                                                 pf->hw.mac.addr,
1779                                                 I40E_ETH_P_LLDP, 0,
1780                                                 pf->vsi[pf->lan_vsi]->seid,
1781                                                 0, false, NULL, NULL);
1782                         if (ret) {
1783                                 dev_info(&pf->pdev->dev,
1784                                         "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1785                                         __func__, pf->hw.aq.asq_last_status);
1786                                 /* Continue and start FW LLDP anyways */
1787                         }
1788
1789                         ret = i40e_aq_start_lldp(&pf->hw, NULL);
1790                         if (ret) {
1791                                 dev_info(&pf->pdev->dev,
1792                                          "Start LLDP AQ command failed =0x%x\n",
1793                                          pf->hw.aq.asq_last_status);
1794                                 goto command_write_done;
1795                         }
1796 #ifdef CONFIG_I40E_DCB
1797                         pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1798                                        DCB_CAP_DCBX_VER_IEEE;
1799 #endif /* CONFIG_I40E_DCB */
1800                 } else if (strncmp(&cmd_buf[5],
1801                            "get local", 9) == 0) {
1802                         u16 llen, rlen;
1803                         int ret;
1804                         u8 *buff;
1805                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1806                         if (!buff)
1807                                 goto command_write_done;
1808
1809                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1810                                                    I40E_AQ_LLDP_MIB_LOCAL,
1811                                                    buff, I40E_LLDPDU_SIZE,
1812                                                    &llen, &rlen, NULL);
1813                         if (ret) {
1814                                 dev_info(&pf->pdev->dev,
1815                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1816                                          pf->hw.aq.asq_last_status);
1817                                 kfree(buff);
1818                                 buff = NULL;
1819                                 goto command_write_done;
1820                         }
1821                         dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1822                         print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1823                                        DUMP_PREFIX_OFFSET, 16, 1,
1824                                        buff, I40E_LLDPDU_SIZE, true);
1825                         kfree(buff);
1826                         buff = NULL;
1827                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1828                         u16 llen, rlen;
1829                         int ret;
1830                         u8 *buff;
1831                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1832                         if (!buff)
1833                                 goto command_write_done;
1834
1835                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1836                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1837                                         I40E_AQ_LLDP_MIB_LOCAL,
1838                                         buff, I40E_LLDPDU_SIZE,
1839                                         &llen, &rlen, NULL);
1840                         if (ret) {
1841                                 dev_info(&pf->pdev->dev,
1842                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1843                                          pf->hw.aq.asq_last_status);
1844                                 kfree(buff);
1845                                 buff = NULL;
1846                                 goto command_write_done;
1847                         }
1848                         dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1849                         print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1850                                        DUMP_PREFIX_OFFSET, 16, 1,
1851                                        buff, I40E_LLDPDU_SIZE, true);
1852                         kfree(buff);
1853                         buff = NULL;
1854                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1855                         int ret;
1856                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1857                                                                 true, NULL);
1858                         if (ret) {
1859                                 dev_info(&pf->pdev->dev,
1860                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1861                                          pf->hw.aq.asq_last_status);
1862                                 goto command_write_done;
1863                         }
1864                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1865                         int ret;
1866                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1867                                                                 false, NULL);
1868                         if (ret) {
1869                                 dev_info(&pf->pdev->dev,
1870                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1871                                          pf->hw.aq.asq_last_status);
1872                                 goto command_write_done;
1873                         }
1874                 }
1875         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1876                 u16 buffer_len, bytes;
1877                 u16 module;
1878                 u32 offset;
1879                 u16 *buff;
1880                 int ret;
1881
1882                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1883                              &module, &offset, &buffer_len);
1884                 if (cnt == 0) {
1885                         module = 0;
1886                         offset = 0;
1887                         buffer_len = 0;
1888                 } else if (cnt == 1) {
1889                         offset = 0;
1890                         buffer_len = 0;
1891                 } else if (cnt == 2) {
1892                         buffer_len = 0;
1893                 } else if (cnt > 3) {
1894                         dev_info(&pf->pdev->dev,
1895                                  "nvm read: bad command string, cnt=%d\n", cnt);
1896                         goto command_write_done;
1897                 }
1898
1899                 /* set the max length */
1900                 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1901
1902                 bytes = 2 * buffer_len;
1903
1904                 /* read at least 1k bytes, no more than 4kB */
1905                 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1906                 buff = kzalloc(bytes, GFP_KERNEL);
1907                 if (!buff)
1908                         goto command_write_done;
1909
1910                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1911                 if (ret) {
1912                         dev_info(&pf->pdev->dev,
1913                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1914                                  ret, pf->hw.aq.asq_last_status);
1915                         kfree(buff);
1916                         goto command_write_done;
1917                 }
1918
1919                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1920                                        bytes, (u8 *)buff, true, NULL);
1921                 i40e_release_nvm(&pf->hw);
1922                 if (ret) {
1923                         dev_info(&pf->pdev->dev,
1924                                  "Read NVM AQ failed err=%d status=0x%x\n",
1925                                  ret, pf->hw.aq.asq_last_status);
1926                 } else {
1927                         dev_info(&pf->pdev->dev,
1928                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1929                                  module, offset, buffer_len);
1930                         if (bytes)
1931                                 print_hex_dump(KERN_INFO, "NVM Dump: ",
1932                                         DUMP_PREFIX_OFFSET, 16, 2,
1933                                         buff, bytes, true);
1934                 }
1935                 kfree(buff);
1936                 buff = NULL;
1937         } else {
1938                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1939                 dev_info(&pf->pdev->dev, "available commands\n");
1940                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1941                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1942                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1943                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1944                 dev_info(&pf->pdev->dev, "  add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1945                 dev_info(&pf->pdev->dev, "  del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1946                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1947                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1948                 dev_info(&pf->pdev->dev, "  dump switch\n");
1949                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1950                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1951                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1952                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1953                 dev_info(&pf->pdev->dev, "  dump stats\n");
1954                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1955                 dev_info(&pf->pdev->dev, "  msg_enable [level]\n");
1956                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1957                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1958                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1959                 dev_info(&pf->pdev->dev, "  clear_stats pf\n");
1960                 dev_info(&pf->pdev->dev, "  pfr\n");
1961                 dev_info(&pf->pdev->dev, "  corer\n");
1962                 dev_info(&pf->pdev->dev, "  globr\n");
1963                 dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1964                 dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1965                 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");
1966                 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");
1967                 dev_info(&pf->pdev->dev, "  fd-atr off\n");
1968                 dev_info(&pf->pdev->dev, "  fd-atr on\n");
1969                 dev_info(&pf->pdev->dev, "  lldp start\n");
1970                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1971                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1972                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1973                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1974                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1975                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1976         }
1977
1978 command_write_done:
1979         kfree(cmd_buf);
1980         cmd_buf = NULL;
1981         return count;
1982 }
1983
1984 static const struct file_operations i40e_dbg_command_fops = {
1985         .owner = THIS_MODULE,
1986         .open =  simple_open,
1987         .read =  i40e_dbg_command_read,
1988         .write = i40e_dbg_command_write,
1989 };
1990
1991 /**************************************************************
1992  * netdev_ops
1993  * The netdev_ops entry in debugfs is for giving the driver commands
1994  * to be executed from the netdev operations.
1995  **************************************************************/
1996 static char i40e_dbg_netdev_ops_buf[256] = "hello world";
1997
1998 /**
1999  * i40e_dbg_netdev_ops - read for netdev_ops datum
2000  * @filp: the opened file
2001  * @buffer: where to write the data for the user to read
2002  * @count: the size of the user's buffer
2003  * @ppos: file position offset
2004  **/
2005 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
2006                                         size_t count, loff_t *ppos)
2007 {
2008         struct i40e_pf *pf = filp->private_data;
2009         int bytes_not_copied;
2010         int buf_size = 256;
2011         char *buf;
2012         int len;
2013
2014         /* don't allow partal reads */
2015         if (*ppos != 0)
2016                 return 0;
2017         if (count < buf_size)
2018                 return -ENOSPC;
2019
2020         buf = kzalloc(buf_size, GFP_KERNEL);
2021         if (!buf)
2022                 return -ENOSPC;
2023
2024         len = snprintf(buf, buf_size, "%s: %s\n",
2025                        pf->vsi[pf->lan_vsi]->netdev->name,
2026                        i40e_dbg_netdev_ops_buf);
2027
2028         bytes_not_copied = copy_to_user(buffer, buf, len);
2029         kfree(buf);
2030
2031         if (bytes_not_copied < 0)
2032                 return bytes_not_copied;
2033
2034         *ppos = len;
2035         return len;
2036 }
2037
2038 /**
2039  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
2040  * @filp: the opened file
2041  * @buffer: where to find the user's data
2042  * @count: the length of the user's data
2043  * @ppos: file position offset
2044  **/
2045 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
2046                                          const char __user *buffer,
2047                                          size_t count, loff_t *ppos)
2048 {
2049         struct i40e_pf *pf = filp->private_data;
2050         int bytes_not_copied;
2051         struct i40e_vsi *vsi;
2052         char *buf_tmp;
2053         int vsi_seid;
2054         int i, cnt;
2055
2056         /* don't allow partial writes */
2057         if (*ppos != 0)
2058                 return 0;
2059         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
2060                 return -ENOSPC;
2061
2062         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
2063         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
2064                                           buffer, count);
2065         if (bytes_not_copied < 0)
2066                 return bytes_not_copied;
2067         else if (bytes_not_copied > 0)
2068                 count -= bytes_not_copied;
2069         i40e_dbg_netdev_ops_buf[count] = '\0';
2070
2071         buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
2072         if (buf_tmp) {
2073                 *buf_tmp = '\0';
2074                 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
2075         }
2076
2077         if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
2078                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2079                 if (cnt != 1) {
2080                         dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
2081                         goto netdev_ops_write_done;
2082                 }
2083                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2084                 if (!vsi) {
2085                         dev_info(&pf->pdev->dev,
2086                                  "tx_timeout: VSI %d not found\n", vsi_seid);
2087                 } else if (!vsi->netdev) {
2088                         dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n",
2089                                  vsi_seid);
2090                 } else if (test_bit(__I40E_DOWN, &vsi->state)) {
2091                         dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n",
2092                                  vsi_seid);
2093                 } else if (rtnl_trylock()) {
2094                         vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
2095                         rtnl_unlock();
2096                         dev_info(&pf->pdev->dev, "tx_timeout called\n");
2097                 } else {
2098                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2099                 }
2100         } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
2101                 int mtu;
2102                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
2103                              &vsi_seid, &mtu);
2104                 if (cnt != 2) {
2105                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
2106                         goto netdev_ops_write_done;
2107                 }
2108                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2109                 if (!vsi) {
2110                         dev_info(&pf->pdev->dev,
2111                                  "change_mtu: VSI %d not found\n", vsi_seid);
2112                 } else if (!vsi->netdev) {
2113                         dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
2114                                  vsi_seid);
2115                 } else if (rtnl_trylock()) {
2116                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
2117                                                                 mtu);
2118                         rtnl_unlock();
2119                         dev_info(&pf->pdev->dev, "change_mtu called\n");
2120                 } else {
2121                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2122                 }
2123
2124         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
2125                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2126                 if (cnt != 1) {
2127                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
2128                         goto netdev_ops_write_done;
2129                 }
2130                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2131                 if (!vsi) {
2132                         dev_info(&pf->pdev->dev,
2133                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
2134                 } else if (!vsi->netdev) {
2135                         dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
2136                                  vsi_seid);
2137                 } else if (rtnl_trylock()) {
2138                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
2139                         rtnl_unlock();
2140                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
2141                 } else {
2142                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2143                 }
2144
2145         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
2146                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
2147                 if (cnt != 1) {
2148                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
2149                         goto netdev_ops_write_done;
2150                 }
2151                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2152                 if (!vsi) {
2153                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
2154                                  vsi_seid);
2155                 } else if (!vsi->netdev) {
2156                         dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
2157                                  vsi_seid);
2158                 } else {
2159                         for (i = 0; i < vsi->num_q_vectors; i++)
2160                                 napi_schedule(&vsi->q_vectors[i]->napi);
2161                         dev_info(&pf->pdev->dev, "napi called\n");
2162                 }
2163         } else {
2164                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
2165                          i40e_dbg_netdev_ops_buf);
2166                 dev_info(&pf->pdev->dev, "available commands\n");
2167                 dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
2168                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
2169                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
2170                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
2171         }
2172 netdev_ops_write_done:
2173         return count;
2174 }
2175
2176 static const struct file_operations i40e_dbg_netdev_ops_fops = {
2177         .owner = THIS_MODULE,
2178         .open = simple_open,
2179         .read = i40e_dbg_netdev_ops_read,
2180         .write = i40e_dbg_netdev_ops_write,
2181 };
2182
2183 /**
2184  * i40e_dbg_pf_init - setup the debugfs directory for the pf
2185  * @pf: the pf that is starting up
2186  **/
2187 void i40e_dbg_pf_init(struct i40e_pf *pf)
2188 {
2189         struct dentry *pfile;
2190         const char *name = pci_name(pf->pdev);
2191         const struct device *dev = &pf->pdev->dev;
2192
2193         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
2194         if (!pf->i40e_dbg_pf)
2195                 return;
2196
2197         pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
2198                                     &i40e_dbg_command_fops);
2199         if (!pfile)
2200                 goto create_failed;
2201
2202         pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2203                                     &i40e_dbg_dump_fops);
2204         if (!pfile)
2205                 goto create_failed;
2206
2207         pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
2208                                     &i40e_dbg_netdev_ops_fops);
2209         if (!pfile)
2210                 goto create_failed;
2211
2212         return;
2213
2214 create_failed:
2215         dev_info(dev, "debugfs dir/file for %s failed\n", name);
2216         debugfs_remove_recursive(pf->i40e_dbg_pf);
2217         return;
2218 }
2219
2220 /**
2221  * i40e_dbg_pf_exit - clear out the pf's debugfs entries
2222  * @pf: the pf that is stopping
2223  **/
2224 void i40e_dbg_pf_exit(struct i40e_pf *pf)
2225 {
2226         debugfs_remove_recursive(pf->i40e_dbg_pf);
2227         pf->i40e_dbg_pf = NULL;
2228
2229         kfree(i40e_dbg_dump_buf);
2230         i40e_dbg_dump_buf = NULL;
2231 }
2232
2233 /**
2234  * i40e_dbg_init - start up debugfs for the driver
2235  **/
2236 void i40e_dbg_init(void)
2237 {
2238         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2239         if (!i40e_dbg_root)
2240                 pr_info("init of debugfs failed\n");
2241 }
2242
2243 /**
2244  * i40e_dbg_exit - clean out the driver's debugfs entries
2245  **/
2246 void i40e_dbg_exit(void)
2247 {
2248         debugfs_remove_recursive(i40e_dbg_root);
2249         i40e_dbg_root = NULL;
2250 }
2251
2252 #endif /* CONFIG_DEBUG_FS */