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->hw.func_caps.num_vsis; 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         if (is_rx_ring)
 777                 ring = *vsi->rx_rings[ring_id];
 778         else
 779                 ring = *vsi->tx_rings[ring_id];
 780         if (cnt == 2) {
 781                 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 782                          vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
 783                 for (i = 0; i < ring.count; i++) {
 784                         if (!is_rx_ring) {
 785                                 txd = I40E_TX_DESC(&ring, i);
 786                                 dev_info(&pf->pdev->dev,
 787                                          "   d[%03i] = 0x%016llx 0x%016llx\n",
 788                                          i, txd->buffer_addr,
 789                                          txd->cmd_type_offset_bsz);
 790                         } else if (sizeof(union i40e_rx_desc) ==
 791                                    sizeof(union i40e_16byte_rx_desc)) {
 792                                 rxd = I40E_RX_DESC(&ring, i);
 793                                 dev_info(&pf->pdev->dev,
 794                                          "   d[%03i] = 0x%016llx 0x%016llx\n",
 795                                          i, rxd->read.pkt_addr,
 796                                          rxd->read.hdr_addr);
 797                         } else {
 798                                 rxd = I40E_RX_DESC(&ring, i);
 799                                 dev_info(&pf->pdev->dev,
 800                                          "   d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 801                                          i, rxd->read.pkt_addr,
 802                                          rxd->read.hdr_addr,
 803                                          rxd->read.rsvd1, rxd->read.rsvd2);
 804                         }
 805                 }
 806         } else if (cnt == 3) {
 807                 if (desc_n >= ring.count || desc_n < 0) {
 808                         dev_info(&pf->pdev->dev,
 809                                  "descriptor %d not found\n", desc_n);
 810                         return;
 811                 }
 812                 if (!is_rx_ring) {
 813                         txd = I40E_TX_DESC(&ring, desc_n);
 814                         dev_info(&pf->pdev->dev,
 815                                  "vsi = %02i tx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
 816                                  vsi_seid, ring_id, desc_n,
 817                                  txd->buffer_addr, txd->cmd_type_offset_bsz);
 818                 } else if (sizeof(union i40e_rx_desc) ==
 819                            sizeof(union i40e_16byte_rx_desc)) {
 820                         rxd = I40E_RX_DESC(&ring, desc_n);
 821                         dev_info(&pf->pdev->dev,
 822                                  "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
 823                                  vsi_seid, ring_id, desc_n,
 824                                  rxd->read.pkt_addr, rxd->read.hdr_addr);
 825                 } else {
 826                         rxd = I40E_RX_DESC(&ring, desc_n);
 827                         dev_info(&pf->pdev->dev,
 828                                  "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 829                                  vsi_seid, ring_id, desc_n,
 830                                  rxd->read.pkt_addr, rxd->read.hdr_addr,
 831                                  rxd->read.rsvd1, rxd->read.rsvd2);
 832                 }
 833         } else {
 834                 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
 835         }
 836 }
 837
 838 /**
 839  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 840  * @pf: the i40e_pf created in command write
 841  **/
 842 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 843 {
 844         int i;
 845
 846         for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
 847                 if (pf->vsi[i])
 848                         dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 849                                  i, pf->vsi[i]->seid);
 850 }
 851
 852 /**
 853  * i40e_dbg_dump_stats - handles dump stats write into command datum
 854  * @pf: the i40e_pf created in command write
 855  * @estats: the eth stats structure to be dumped
 856  **/
 857 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 858                                     struct i40e_eth_stats *estats)
 859 {
 860         dev_info(&pf->pdev->dev, "  ethstats:\n");
 861         dev_info(&pf->pdev->dev,
 862                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 863                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 864         dev_info(&pf->pdev->dev,
 865                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld \trx_errors = \t%lld\n",
 866                  estats->rx_broadcast, estats->rx_discards, estats->rx_errors);
 867         dev_info(&pf->pdev->dev,
 868                  "    rx_missed = \t%lld \trx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 869                  estats->rx_missed, estats->rx_unknown_protocol,
 870                  estats->tx_bytes);
 871         dev_info(&pf->pdev->dev,
 872                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 873                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 874         dev_info(&pf->pdev->dev,
 875                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 876                  estats->tx_discards, estats->tx_errors);
 877 }
 878
 879 /**
 880  * i40e_dbg_dump_stats - handles dump stats write into command datum
 881  * @pf: the i40e_pf created in command write
 882  * @stats: the stats structure to be dumped
 883  **/
 884 static void i40e_dbg_dump_stats(struct i40e_pf *pf,
 885                                 struct i40e_hw_port_stats *stats)
 886 {
 887         int i;
 888
 889         dev_info(&pf->pdev->dev, "  stats:\n");
 890         dev_info(&pf->pdev->dev,
 891                  "    crc_errors = \t\t%lld \tillegal_bytes = \t%lld \terror_bytes = \t\t%lld\n",
 892                  stats->crc_errors, stats->illegal_bytes, stats->error_bytes);
 893         dev_info(&pf->pdev->dev,
 894                  "    mac_local_faults = \t%lld \tmac_remote_faults = \t%lld \trx_length_errors = \t%lld\n",
 895                  stats->mac_local_faults, stats->mac_remote_faults,
 896                  stats->rx_length_errors);
 897         dev_info(&pf->pdev->dev,
 898                  "    link_xon_rx = \t\t%lld \tlink_xoff_rx = \t\t%lld \tlink_xon_tx = \t\t%lld\n",
 899                  stats->link_xon_rx, stats->link_xoff_rx, stats->link_xon_tx);
 900         dev_info(&pf->pdev->dev,
 901                  "    link_xoff_tx = \t\t%lld \trx_size_64 = \t\t%lld \trx_size_127 = \t\t%lld\n",
 902                  stats->link_xoff_tx, stats->rx_size_64, stats->rx_size_127);
 903         dev_info(&pf->pdev->dev,
 904                  "    rx_size_255 = \t\t%lld \trx_size_511 = \t\t%lld \trx_size_1023 = \t\t%lld\n",
 905                  stats->rx_size_255, stats->rx_size_511, stats->rx_size_1023);
 906         dev_info(&pf->pdev->dev,
 907                  "    rx_size_big = \t\t%lld \trx_undersize = \t\t%lld \trx_jabber = \t\t%lld\n",
 908                  stats->rx_size_big, stats->rx_undersize, stats->rx_jabber);
 909         dev_info(&pf->pdev->dev,
 910                  "    rx_fragments = \t\t%lld \trx_oversize = \t\t%lld \ttx_size_64 = \t\t%lld\n",
 911                  stats->rx_fragments, stats->rx_oversize, stats->tx_size_64);
 912         dev_info(&pf->pdev->dev,
 913                  "    tx_size_127 = \t\t%lld \ttx_size_255 = \t\t%lld \ttx_size_511 = \t\t%lld\n",
 914                  stats->tx_size_127, stats->tx_size_255, stats->tx_size_511);
 915         dev_info(&pf->pdev->dev,
 916                  "    tx_size_1023 = \t\t%lld \ttx_size_big = \t\t%lld \tmac_short_packet_dropped = \t%lld\n",
 917                  stats->tx_size_1023, stats->tx_size_big,
 918                  stats->mac_short_packet_dropped);
 919         for (i = 0; i < 8; i += 4) {
 920                 dev_info(&pf->pdev->dev,
 921                          "    priority_xon_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 922                          i, stats->priority_xon_rx[i],
 923                          i+1, stats->priority_xon_rx[i+1],
 924                          i+2, stats->priority_xon_rx[i+2],
 925                          i+3, stats->priority_xon_rx[i+3]);
 926         }
 927         for (i = 0; i < 8; i += 4) {
 928                 dev_info(&pf->pdev->dev,
 929                          "    priority_xoff_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 930                          i, stats->priority_xoff_rx[i],
 931                          i+1, stats->priority_xoff_rx[i+1],
 932                          i+2, stats->priority_xoff_rx[i+2],
 933                          i+3, stats->priority_xoff_rx[i+3]);
 934         }
 935         for (i = 0; i < 8; i += 4) {
 936                 dev_info(&pf->pdev->dev,
 937                          "    priority_xon_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 938                          i, stats->priority_xon_tx[i],
 939                          i+1, stats->priority_xon_tx[i+1],
 940                          i+2, stats->priority_xon_tx[i+2],
 941                          i+3, stats->priority_xon_rx[i+3]);
 942         }
 943         for (i = 0; i < 8; i += 4) {
 944                 dev_info(&pf->pdev->dev,
 945                          "    priority_xoff_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 946                          i, stats->priority_xoff_tx[i],
 947                          i+1, stats->priority_xoff_tx[i+1],
 948                          i+2, stats->priority_xoff_tx[i+2],
 949                          i+3, stats->priority_xoff_tx[i+3]);
 950         }
 951         for (i = 0; i < 8; i += 4) {
 952                 dev_info(&pf->pdev->dev,
 953                          "    priority_xon_2_xoff[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 954                          i, stats->priority_xon_2_xoff[i],
 955                          i+1, stats->priority_xon_2_xoff[i+1],
 956                          i+2, stats->priority_xon_2_xoff[i+2],
 957                          i+3, stats->priority_xon_2_xoff[i+3]);
 958         }
 959
 960         i40e_dbg_dump_eth_stats(pf, &stats->eth);
 961 }
 962
 963 /**
 964  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 965  * @pf: the i40e_pf created in command write
 966  * @seid: the seid the user put in
 967  **/
 968 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 969 {
 970         struct i40e_veb *veb;
 971
 972         if ((seid < I40E_BASE_VEB_SEID) ||
 973             (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
 974                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
 975                 return;
 976         }
 977
 978         veb = i40e_dbg_find_veb(pf, seid);
 979         if (!veb) {
 980                 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 981                 return;
 982         }
 983         dev_info(&pf->pdev->dev,
 984                  "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d\n",
 985                  veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 986                  veb->uplink_seid);
 987         i40e_dbg_dump_eth_stats(pf, &veb->stats);
 988 }
 989
 990 /**
 991  * i40e_dbg_dump_veb_all - dumps all known veb's stats
 992  * @pf: the i40e_pf created in command write
 993  **/
 994 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 995 {
 996         struct i40e_veb *veb;
 997         int i;
 998
 999         for (i = 0; i < I40E_MAX_VEB; i++) {
1000                 veb = pf->veb[i];
1001                 if (veb)
1002                         i40e_dbg_dump_veb_seid(pf, veb->seid);
1003         }
1004 }
1005
1006 /**
1007  * i40e_dbg_cmd_fd_ctrl - Enable/disable FD sideband/ATR
1008  * @pf: the pf that would be altered
1009  * @flag: flag that needs enabling or disabling
1010  * @enable: Enable/disable FD SD/ATR
1011  **/
1012 static void i40e_dbg_cmd_fd_ctrl(struct i40e_pf *pf, u64 flag, bool enable)
1013 {
1014         if (enable)
1015                 pf->flags |= flag;
1016         else
1017                 pf->flags &= ~flag;
1018         dev_info(&pf->pdev->dev, "requesting a pf reset\n");
1019         i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
1020 }
1021
1022 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
1023 /**
1024  * i40e_dbg_command_write - write into command datum
1025  * @filp: the opened file
1026  * @buffer: where to find the user's data
1027  * @count: the length of the user's data
1028  * @ppos: file position offset
1029  **/
1030 static ssize_t i40e_dbg_command_write(struct file *filp,
1031                                       const char __user *buffer,
1032                                       size_t count, loff_t *ppos)
1033 {
1034         struct i40e_pf *pf = filp->private_data;
1035         char *cmd_buf, *cmd_buf_tmp;
1036         int bytes_not_copied;
1037         struct i40e_vsi *vsi;
1038         int vsi_seid;
1039         int veb_seid;
1040         int cnt;
1041
1042         /* don't allow partial writes */
1043         if (*ppos != 0)
1044                 return 0;
1045
1046         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
1047         if (!cmd_buf)
1048                 return count;
1049         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
1050         if (bytes_not_copied < 0)
1051                 return bytes_not_copied;
1052         if (bytes_not_copied > 0)
1053                 count -= bytes_not_copied;
1054         cmd_buf[count] = '\0';
1055
1056         cmd_buf_tmp = strchr(cmd_buf, '\n');
1057         if (cmd_buf_tmp) {
1058                 *cmd_buf_tmp = '\0';
1059                 count = cmd_buf_tmp - cmd_buf + 1;
1060         }
1061
1062         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
1063                 vsi_seid = -1;
1064                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1065                 if (cnt == 0) {
1066                         /* default to PF VSI */
1067                         vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1068                 } else if (vsi_seid < 0) {
1069                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1070                                  vsi_seid);
1071                         goto command_write_done;
1072                 }
1073
1074                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1075                 if (vsi)
1076                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1077                                  vsi->seid, vsi->uplink_seid);
1078                 else
1079                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1080
1081         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1082                 sscanf(&cmd_buf[7], "%i", &vsi_seid);
1083                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1084                 if (!vsi) {
1085                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1086                                  vsi_seid);
1087                         goto command_write_done;
1088                 }
1089
1090                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1091                 i40e_vsi_release(vsi);
1092
1093         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1094                 struct i40e_veb *veb;
1095                 int uplink_seid, i;
1096
1097                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1098                 if (cnt != 2) {
1099                         dev_info(&pf->pdev->dev,
1100                                  "add relay: bad command string, cnt=%d\n",
1101                                  cnt);
1102                         goto command_write_done;
1103                 } else if (uplink_seid < 0) {
1104                         dev_info(&pf->pdev->dev,
1105                                  "add relay %d: bad uplink seid\n",
1106                                  uplink_seid);
1107                         goto command_write_done;
1108                 }
1109
1110                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1111                 if (!vsi) {
1112                         dev_info(&pf->pdev->dev,
1113                                  "add relay: VSI %d not found\n", vsi_seid);
1114                         goto command_write_done;
1115                 }
1116
1117                 for (i = 0; i < I40E_MAX_VEB; i++)
1118                         if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1119                                 break;
1120                 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1121                     uplink_seid != pf->mac_seid) {
1122                         dev_info(&pf->pdev->dev,
1123                                  "add relay: relay uplink %d not found\n",
1124                                  uplink_seid);
1125                         goto command_write_done;
1126                 }
1127
1128                 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1129                                      vsi->tc_config.enabled_tc);
1130                 if (veb)
1131                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1132                 else
1133                         dev_info(&pf->pdev->dev, "add relay failed\n");
1134
1135         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1136                 int i;
1137                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1138                 if (cnt != 1) {
1139                         dev_info(&pf->pdev->dev,
1140                                  "del relay: bad command string, cnt=%d\n",
1141                                  cnt);
1142                         goto command_write_done;
1143                 } else if (veb_seid < 0) {
1144                         dev_info(&pf->pdev->dev,
1145                                  "del relay %d: bad relay seid\n", veb_seid);
1146                         goto command_write_done;
1147                 }
1148
1149                 /* find the veb */
1150                 for (i = 0; i < I40E_MAX_VEB; i++)
1151                         if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1152                                 break;
1153                 if (i >= I40E_MAX_VEB) {
1154                         dev_info(&pf->pdev->dev,
1155                                  "del relay: relay %d not found\n", veb_seid);
1156                         goto command_write_done;
1157                 }
1158
1159                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1160                 i40e_veb_release(pf->veb[i]);
1161
1162         } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
1163                 struct i40e_mac_filter *f;
1164                 int vlan = 0;
1165                 u8 ma[6];
1166                 int ret;
1167
1168                 cnt = sscanf(&cmd_buf[11],
1169                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1170                              &vsi_seid,
1171                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1172                              &vlan);
1173                 if (cnt == 7) {
1174                         vlan = 0;
1175                 } else if (cnt != 8) {
1176                         dev_info(&pf->pdev->dev,
1177                                  "add macaddr: bad command string, cnt=%d\n",
1178                                  cnt);
1179                         goto command_write_done;
1180                 }
1181
1182                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1183                 if (!vsi) {
1184                         dev_info(&pf->pdev->dev,
1185                                  "add macaddr: VSI %d not found\n", vsi_seid);
1186                         goto command_write_done;
1187                 }
1188
1189                 f = i40e_add_filter(vsi, ma, vlan, false, false);
1190                 ret = i40e_sync_vsi_filters(vsi);
1191                 if (f && !ret)
1192                         dev_info(&pf->pdev->dev,
1193                                  "add macaddr: %pM vlan=%d added to VSI %d\n",
1194                                  ma, vlan, vsi_seid);
1195                 else
1196                         dev_info(&pf->pdev->dev,
1197                                  "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1198                                  ma, vlan, vsi_seid, f, ret);
1199
1200         } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
1201                 int vlan = 0;
1202                 u8 ma[6];
1203                 int ret;
1204
1205                 cnt = sscanf(&cmd_buf[11],
1206                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1207                              &vsi_seid,
1208                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1209                              &vlan);
1210                 if (cnt == 7) {
1211                         vlan = 0;
1212                 } else if (cnt != 8) {
1213                         dev_info(&pf->pdev->dev,
1214                                  "del macaddr: bad command string, cnt=%d\n",
1215                                  cnt);
1216                         goto command_write_done;
1217                 }
1218
1219                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1220                 if (!vsi) {
1221                         dev_info(&pf->pdev->dev,
1222                                  "del macaddr: VSI %d not found\n", vsi_seid);
1223                         goto command_write_done;
1224                 }
1225
1226                 i40e_del_filter(vsi, ma, vlan, false, false);
1227                 ret = i40e_sync_vsi_filters(vsi);
1228                 if (!ret)
1229                         dev_info(&pf->pdev->dev,
1230                                  "del macaddr: %pM vlan=%d removed from VSI %d\n",
1231                                  ma, vlan, vsi_seid);
1232                 else
1233                         dev_info(&pf->pdev->dev,
1234                                  "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1235                                  ma, vlan, vsi_seid, ret);
1236
1237         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
1238                 i40e_status ret;
1239                 u16 vid;
1240                 int v;
1241
1242                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1243                 if (cnt != 2) {
1244                         dev_info(&pf->pdev->dev,
1245                                  "add pvid: bad command string, cnt=%d\n", cnt);
1246                         goto command_write_done;
1247                 }
1248
1249                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1250                 if (!vsi) {
1251                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1252                                  vsi_seid);
1253                         goto command_write_done;
1254                 }
1255
1256                 vid = (unsigned)v;
1257                 ret = i40e_vsi_add_pvid(vsi, vid);
1258                 if (!ret)
1259                         dev_info(&pf->pdev->dev,
1260                                  "add pvid: %d added to VSI %d\n",
1261                                  vid, vsi_seid);
1262                 else
1263                         dev_info(&pf->pdev->dev,
1264                                  "add pvid: %d to VSI %d failed, ret=%d\n",
1265                                  vid, vsi_seid, ret);
1266
1267         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1268
1269                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1270                 if (cnt != 1) {
1271                         dev_info(&pf->pdev->dev,
1272                                  "del pvid: bad command string, cnt=%d\n",
1273                                  cnt);
1274                         goto command_write_done;
1275                 }
1276
1277                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1278                 if (!vsi) {
1279                         dev_info(&pf->pdev->dev,
1280                                  "del pvid: VSI %d not found\n", vsi_seid);
1281                         goto command_write_done;
1282                 }
1283
1284                 i40e_vsi_remove_pvid(vsi);
1285                 dev_info(&pf->pdev->dev,
1286                          "del pvid: removed from VSI %d\n", vsi_seid);
1287
1288         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1289                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1290                         i40e_fetch_switch_configuration(pf, true);
1291                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1292                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1293                         if (cnt > 0)
1294                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1295                         else
1296                                 i40e_dbg_dump_vsi_no_seid(pf);
1297                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1298                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1299                         if (cnt > 0)
1300                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1301                         else
1302                                 i40e_dbg_dump_veb_all(pf);
1303                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1304                         int ring_id, desc_n;
1305                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
1306                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1307                                              &vsi_seid, &ring_id, &desc_n);
1308                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1309                                                    desc_n, pf, true);
1310                         } else if (strncmp(&cmd_buf[10], "tx", 2)
1311                                         == 0) {
1312                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1313                                              &vsi_seid, &ring_id, &desc_n);
1314                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1315                                                    desc_n, pf, false);
1316                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1317                                 i40e_dbg_dump_aq_desc(pf);
1318                         } else {
1319                                 dev_info(&pf->pdev->dev,
1320                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1321                                 dev_info(&pf->pdev->dev,
1322                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1323                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
1324                         }
1325                 } else if (strncmp(&cmd_buf[5], "stats", 5) == 0) {
1326                         dev_info(&pf->pdev->dev, "pf stats:\n");
1327                         i40e_dbg_dump_stats(pf, &pf->stats);
1328                         dev_info(&pf->pdev->dev, "pf stats_offsets:\n");
1329                         i40e_dbg_dump_stats(pf, &pf->stats_offsets);
1330                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1331                         dev_info(&pf->pdev->dev,
1332                                  "core reset count: %d\n", pf->corer_count);
1333                         dev_info(&pf->pdev->dev,
1334                                  "global reset count: %d\n", pf->globr_count);
1335                         dev_info(&pf->pdev->dev,
1336                                  "emp reset count: %d\n", pf->empr_count);
1337                         dev_info(&pf->pdev->dev,
1338                                  "pf reset count: %d\n", pf->pfr_count);
1339                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1340                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
1341                         struct i40e_dcbx_config *cfg =
1342                                                 &pf->hw.local_dcbx_config;
1343                         struct i40e_dcbx_config *r_cfg =
1344                                                 &pf->hw.remote_dcbx_config;
1345                         int i, ret;
1346
1347                         bw_data = kzalloc(sizeof(
1348                                     struct i40e_aqc_query_port_ets_config_resp),
1349                                           GFP_KERNEL);
1350                         if (!bw_data) {
1351                                 ret = -ENOMEM;
1352                                 goto command_write_done;
1353                         }
1354
1355                         ret = i40e_aq_query_port_ets_config(&pf->hw,
1356                                                             pf->mac_seid,
1357                                                             bw_data, NULL);
1358                         if (ret) {
1359                                 dev_info(&pf->pdev->dev,
1360                                          "Query Port ETS Config AQ command failed =0x%x\n",
1361                                          pf->hw.aq.asq_last_status);
1362                                 kfree(bw_data);
1363                                 bw_data = NULL;
1364                                 goto command_write_done;
1365                         }
1366                         dev_info(&pf->pdev->dev,
1367                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1368                                  bw_data->tc_valid_bits,
1369                                  bw_data->tc_strict_priority_bits,
1370                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1371                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1372                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1373                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1374                                          bw_data->tc_bw_share_credits[i],
1375                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1376                         }
1377
1378                         kfree(bw_data);
1379                         bw_data = NULL;
1380
1381                         dev_info(&pf->pdev->dev,
1382                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1383                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1384                                  cfg->etscfg.maxtcs);
1385                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1386                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1387                                          i, cfg->etscfg.prioritytable[i],
1388                                          cfg->etscfg.tcbwtable[i],
1389                                          cfg->etscfg.tsatable[i]);
1390                         }
1391                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1392                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1393                                          i, cfg->etsrec.prioritytable[i],
1394                                          cfg->etsrec.tcbwtable[i],
1395                                          cfg->etsrec.tsatable[i]);
1396                         }
1397                         dev_info(&pf->pdev->dev,
1398                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1399                                  cfg->pfc.willing, cfg->pfc.mbc,
1400                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1401                         dev_info(&pf->pdev->dev,
1402                                  "port app_table: num_apps=%d\n", cfg->numapps);
1403                         for (i = 0; i < cfg->numapps; i++) {
1404                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1405                                          i, cfg->app[i].priority,
1406                                          cfg->app[i].selector,
1407                                          cfg->app[i].protocolid);
1408                         }
1409                         /* Peer TLV DCBX data */
1410                         dev_info(&pf->pdev->dev,
1411                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1412                                  r_cfg->etscfg.willing,
1413                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1414                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1415                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1416                                          i, r_cfg->etscfg.prioritytable[i],
1417                                          r_cfg->etscfg.tcbwtable[i],
1418                                          r_cfg->etscfg.tsatable[i]);
1419                         }
1420                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1421                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1422                                          i, r_cfg->etsrec.prioritytable[i],
1423                                          r_cfg->etsrec.tcbwtable[i],
1424                                          r_cfg->etsrec.tsatable[i]);
1425                         }
1426                         dev_info(&pf->pdev->dev,
1427                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1428                                  r_cfg->pfc.willing,
1429                                  r_cfg->pfc.mbc,
1430                                  r_cfg->pfc.pfccap,
1431                                  r_cfg->pfc.pfcenable);
1432                         dev_info(&pf->pdev->dev,
1433                                  "remote port app_table: num_apps=%d\n",
1434                                  r_cfg->numapps);
1435                         for (i = 0; i < r_cfg->numapps; i++) {
1436                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1437                                          i, r_cfg->app[i].priority,
1438                                          r_cfg->app[i].selector,
1439                                          r_cfg->app[i].protocolid);
1440                         }
1441                 } else {
1442                         dev_info(&pf->pdev->dev,
1443                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1444                         dev_info(&pf->pdev->dev, "dump switch, dump vsi [seid] or\n");
1445                         dev_info(&pf->pdev->dev, "dump stats\n");
1446                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1447                         dev_info(&pf->pdev->dev, "dump port\n");
1448                         dev_info(&pf->pdev->dev,
1449                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1450                 }
1451
1452         } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1453                 u32 level;
1454                 cnt = sscanf(&cmd_buf[10], "%i", &level);
1455                 if (cnt) {
1456                         if (I40E_DEBUG_USER & level) {
1457                                 pf->hw.debug_mask = level;
1458                                 dev_info(&pf->pdev->dev,
1459                                          "set hw.debug_mask = 0x%08x\n",
1460                                          pf->hw.debug_mask);
1461                         }
1462                         pf->msg_enable = level;
1463                         dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1464                                  pf->msg_enable);
1465                 } else {
1466                         dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1467                                  pf->msg_enable);
1468                 }
1469         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1470                 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1471                 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
1472
1473         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1474                 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1475                 i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED));
1476
1477         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1478                 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1479                 i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED));
1480
1481         } else if (strncmp(cmd_buf, "empr", 4) == 0) {
1482                 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
1483                 i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED));
1484
1485         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1486                 u32 address;
1487                 u32 value;
1488                 cnt = sscanf(&cmd_buf[4], "%i", &address);
1489                 if (cnt != 1) {
1490                         dev_info(&pf->pdev->dev, "read <reg>\n");
1491                         goto command_write_done;
1492                 }
1493
1494                 /* check the range on address */
1495                 if (address >= I40E_MAX_REGISTER) {
1496                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n",
1497                                  address);
1498                         goto command_write_done;
1499                 }
1500
1501                 value = rd32(&pf->hw, address);
1502                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1503                          address, value);
1504
1505         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1506                 u32 address, value;
1507                 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1508                 if (cnt != 2) {
1509                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1510                         goto command_write_done;
1511                 }
1512
1513                 /* check the range on address */
1514                 if (address >= I40E_MAX_REGISTER) {
1515                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n",
1516                                  address);
1517                         goto command_write_done;
1518                 }
1519                 wr32(&pf->hw, address, value);
1520                 value = rd32(&pf->hw, address);
1521                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1522                          address, value);
1523         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1524                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1525                         cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1526                         if (cnt == 0) {
1527                                 int i;
1528                                 for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
1529                                         i40e_vsi_reset_stats(pf->vsi[i]);
1530                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1531                         } else if (cnt == 1) {
1532                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1533                                 if (!vsi) {
1534                                         dev_info(&pf->pdev->dev,
1535                                                  "clear_stats vsi: bad vsi %d\n",
1536                                                  vsi_seid);
1537                                         goto command_write_done;
1538                                 }
1539                                 i40e_vsi_reset_stats(vsi);
1540                                 dev_info(&pf->pdev->dev,
1541                                          "vsi clear stats called for vsi %d\n",
1542                                          vsi_seid);
1543                         } else {
1544                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1545                         }
1546                 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) {
1547                         i40e_pf_reset_stats(pf);
1548                         dev_info(&pf->pdev->dev, "pf clear stats called\n");
1549                 } else {
1550                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n");
1551                 }
1552         } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1553                 struct i40e_aq_desc *desc;
1554                 i40e_status ret;
1555
1556                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1557                 if (!desc)
1558                         goto command_write_done;
1559                 cnt = sscanf(&cmd_buf[11],
1560                              "%hx %hx %hx %hx %x %x %x %x %x %x",
1561                              &desc->flags,
1562                              &desc->opcode, &desc->datalen, &desc->retval,
1563                              &desc->cookie_high, &desc->cookie_low,
1564                              &desc->params.internal.param0,
1565                              &desc->params.internal.param1,
1566                              &desc->params.internal.param2,
1567                              &desc->params.internal.param3);
1568                 if (cnt != 10) {
1569                         dev_info(&pf->pdev->dev,
1570                                  "send aq_cmd: bad command string, cnt=%d\n",
1571                                  cnt);
1572                         kfree(desc);
1573                         desc = NULL;
1574                         goto command_write_done;
1575                 }
1576                 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1577                 if (!ret) {
1578                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1579                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1580                         dev_info(&pf->pdev->dev,
1581                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1582                                  desc->opcode, pf->hw.aq.asq_last_status);
1583                 } else {
1584                         dev_info(&pf->pdev->dev,
1585                                  "AQ command send failed Opcode %x Status: %d\n",
1586                                  desc->opcode, ret);
1587                 }
1588                 dev_info(&pf->pdev->dev,
1589                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1590                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1591                          desc->cookie_high, desc->cookie_low,
1592                          desc->params.internal.param0,
1593                          desc->params.internal.param1,
1594                          desc->params.internal.param2,
1595                          desc->params.internal.param3);
1596                 kfree(desc);
1597                 desc = NULL;
1598         } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1599                 struct i40e_aq_desc *desc;
1600                 i40e_status ret;
1601                 u16 buffer_len;
1602                 u8 *buff;
1603
1604                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1605                 if (!desc)
1606                         goto command_write_done;
1607                 cnt = sscanf(&cmd_buf[20],
1608                              "%hx %hx %hx %hx %x %x %x %x %x %x %hd",
1609                              &desc->flags,
1610                              &desc->opcode, &desc->datalen, &desc->retval,
1611                              &desc->cookie_high, &desc->cookie_low,
1612                              &desc->params.internal.param0,
1613                              &desc->params.internal.param1,
1614                              &desc->params.internal.param2,
1615                              &desc->params.internal.param3,
1616                              &buffer_len);
1617                 if (cnt != 11) {
1618                         dev_info(&pf->pdev->dev,
1619                                  "send indirect aq_cmd: bad command string, cnt=%d\n",
1620                                  cnt);
1621                         kfree(desc);
1622                         desc = NULL;
1623                         goto command_write_done;
1624                 }
1625                 /* Just stub a buffer big enough in case user messed up */
1626                 if (buffer_len == 0)
1627                         buffer_len = 1280;
1628
1629                 buff = kzalloc(buffer_len, GFP_KERNEL);
1630                 if (!buff) {
1631                         kfree(desc);
1632                         desc = NULL;
1633                         goto command_write_done;
1634                 }
1635                 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1636                 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1637                                             buffer_len, NULL);
1638                 if (!ret) {
1639                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1640                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1641                         dev_info(&pf->pdev->dev,
1642                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1643                                  desc->opcode, pf->hw.aq.asq_last_status);
1644                 } else {
1645                         dev_info(&pf->pdev->dev,
1646                                  "AQ command send failed Opcode %x Status: %d\n",
1647                                  desc->opcode, ret);
1648                 }
1649                 dev_info(&pf->pdev->dev,
1650                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1651                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1652                          desc->cookie_high, desc->cookie_low,
1653                          desc->params.internal.param0,
1654                          desc->params.internal.param1,
1655                          desc->params.internal.param2,
1656                          desc->params.internal.param3);
1657                 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1658                                DUMP_PREFIX_OFFSET, 16, 1,
1659                                buff, buffer_len, true);
1660                 kfree(buff);
1661                 buff = NULL;
1662                 kfree(desc);
1663                 desc = NULL;
1664         } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1665                    (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
1666                 struct i40e_fdir_filter fd_data;
1667                 u16 packet_len, i, j = 0;
1668                 char *asc_packet;
1669                 u8 *raw_packet;
1670                 bool add = false;
1671                 int ret;
1672
1673                 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1674                                      GFP_KERNEL);
1675                 if (!asc_packet)
1676                         goto command_write_done;
1677
1678                 raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1679                                      GFP_KERNEL);
1680
1681                 if (!raw_packet) {
1682                         kfree(asc_packet);
1683                         asc_packet = NULL;
1684                         goto command_write_done;
1685                 }
1686
1687                 if (strncmp(cmd_buf, "add", 3) == 0)
1688                         add = true;
1689                 cnt = sscanf(&cmd_buf[13],
1690                              "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s",
1691                              &fd_data.q_index,
1692                              &fd_data.flex_off, &fd_data.pctype,
1693                              &fd_data.dest_vsi, &fd_data.dest_ctl,
1694                              &fd_data.fd_status, &fd_data.cnt_index,
1695                              &fd_data.fd_id, &packet_len, asc_packet);
1696                 if (cnt != 10) {
1697                         dev_info(&pf->pdev->dev,
1698                                  "program fd_filter: bad command string, cnt=%d\n",
1699                                  cnt);
1700                         kfree(asc_packet);
1701                         asc_packet = NULL;
1702                         kfree(raw_packet);
1703                         goto command_write_done;
1704                 }
1705
1706                 /* fix packet length if user entered 0 */
1707                 if (packet_len == 0)
1708                         packet_len = I40E_FDIR_MAX_RAW_PACKET_SIZE;
1709
1710                 /* make sure to check the max as well */
1711                 packet_len = min_t(u16,
1712                                    packet_len, I40E_FDIR_MAX_RAW_PACKET_SIZE);
1713
1714                 for (i = 0; i < packet_len; i++) {
1715                         sscanf(&asc_packet[j], "%2hhx ",
1716                                &raw_packet[i]);
1717                         j += 3;
1718                 }
1719                 dev_info(&pf->pdev->dev, "FD raw packet dump\n");
1720                 print_hex_dump(KERN_INFO, "FD raw packet: ",
1721                                DUMP_PREFIX_OFFSET, 16, 1,
1722                                raw_packet, packet_len, true);
1723                 ret = i40e_program_fdir_filter(&fd_data, raw_packet, pf, add);
1724                 if (!ret) {
1725                         dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1726                 } else {
1727                         dev_info(&pf->pdev->dev,
1728                                  "Filter command send failed %d\n", ret);
1729                 }
1730                 kfree(raw_packet);
1731                 raw_packet = NULL;
1732                 kfree(asc_packet);
1733                 asc_packet = NULL;
1734         } else if (strncmp(cmd_buf, "fd-atr off", 10) == 0) {
1735                 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, false);
1736         } else if (strncmp(cmd_buf, "fd-atr on", 9) == 0) {
1737                 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, true);
1738         } else if (strncmp(cmd_buf, "fd-sb off", 9) == 0) {
1739                 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_SB_ENABLED, false);
1740         } else if (strncmp(cmd_buf, "fd-sb on", 8) == 0) {
1741                 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_SB_ENABLED, true);
1742         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1743                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1744                         int ret;
1745                         ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1746                         if (ret) {
1747                                 dev_info(&pf->pdev->dev,
1748                                          "Stop LLDP AQ command failed =0x%x\n",
1749                                          pf->hw.aq.asq_last_status);
1750                                 goto command_write_done;
1751                         }
1752                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1753                                                 pf->hw.mac.addr,
1754                                                 I40E_ETH_P_LLDP, 0,
1755                                                 pf->vsi[pf->lan_vsi]->seid,
1756                                                 0, true, NULL, NULL);
1757                         if (ret) {
1758                                 dev_info(&pf->pdev->dev,
1759                                         "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1760                                         __func__, pf->hw.aq.asq_last_status);
1761                                 goto command_write_done;
1762                         }
1763 #ifdef CONFIG_I40E_DCB
1764                         pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1765                                        DCB_CAP_DCBX_VER_IEEE;
1766 #endif /* CONFIG_I40E_DCB */
1767                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1768                         int ret;
1769                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1770                                                 pf->hw.mac.addr,
1771                                                 I40E_ETH_P_LLDP, 0,
1772                                                 pf->vsi[pf->lan_vsi]->seid,
1773                                                 0, false, NULL, NULL);
1774                         if (ret) {
1775                                 dev_info(&pf->pdev->dev,
1776                                         "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1777                                         __func__, pf->hw.aq.asq_last_status);
1778                                 /* Continue and start FW LLDP anyways */
1779                         }
1780
1781                         ret = i40e_aq_start_lldp(&pf->hw, NULL);
1782                         if (ret) {
1783                                 dev_info(&pf->pdev->dev,
1784                                          "Start LLDP AQ command failed =0x%x\n",
1785                                          pf->hw.aq.asq_last_status);
1786                                 goto command_write_done;
1787                         }
1788 #ifdef CONFIG_I40E_DCB
1789                         pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1790                                        DCB_CAP_DCBX_VER_IEEE;
1791 #endif /* CONFIG_I40E_DCB */
1792                 } else if (strncmp(&cmd_buf[5],
1793                            "get local", 9) == 0) {
1794                         u16 llen, rlen;
1795                         int ret;
1796                         u8 *buff;
1797                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1798                         if (!buff)
1799                                 goto command_write_done;
1800
1801                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1802                                                    I40E_AQ_LLDP_MIB_LOCAL,
1803                                                    buff, I40E_LLDPDU_SIZE,
1804                                                    &llen, &rlen, NULL);
1805                         if (ret) {
1806                                 dev_info(&pf->pdev->dev,
1807                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1808                                          pf->hw.aq.asq_last_status);
1809                                 kfree(buff);
1810                                 buff = NULL;
1811                                 goto command_write_done;
1812                         }
1813                         dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1814                         print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1815                                        DUMP_PREFIX_OFFSET, 16, 1,
1816                                        buff, I40E_LLDPDU_SIZE, true);
1817                         kfree(buff);
1818                         buff = NULL;
1819                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1820                         u16 llen, rlen;
1821                         int ret;
1822                         u8 *buff;
1823                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1824                         if (!buff)
1825                                 goto command_write_done;
1826
1827                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1828                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1829                                         I40E_AQ_LLDP_MIB_LOCAL,
1830                                         buff, I40E_LLDPDU_SIZE,
1831                                         &llen, &rlen, NULL);
1832                         if (ret) {
1833                                 dev_info(&pf->pdev->dev,
1834                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1835                                          pf->hw.aq.asq_last_status);
1836                                 kfree(buff);
1837                                 buff = NULL;
1838                                 goto command_write_done;
1839                         }
1840                         dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1841                         print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1842                                        DUMP_PREFIX_OFFSET, 16, 1,
1843                                        buff, I40E_LLDPDU_SIZE, true);
1844                         kfree(buff);
1845                         buff = NULL;
1846                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1847                         int ret;
1848                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1849                                                                 true, NULL);
1850                         if (ret) {
1851                                 dev_info(&pf->pdev->dev,
1852                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1853                                          pf->hw.aq.asq_last_status);
1854                                 goto command_write_done;
1855                         }
1856                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1857                         int ret;
1858                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1859                                                                 false, NULL);
1860                         if (ret) {
1861                                 dev_info(&pf->pdev->dev,
1862                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1863                                          pf->hw.aq.asq_last_status);
1864                                 goto command_write_done;
1865                         }
1866                 }
1867         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1868                 u16 buffer_len, bytes;
1869                 u16 module;
1870                 u32 offset;
1871                 u16 *buff;
1872                 int ret;
1873
1874                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1875                              &module, &offset, &buffer_len);
1876                 if (cnt == 0) {
1877                         module = 0;
1878                         offset = 0;
1879                         buffer_len = 0;
1880                 } else if (cnt == 1) {
1881                         offset = 0;
1882                         buffer_len = 0;
1883                 } else if (cnt == 2) {
1884                         buffer_len = 0;
1885                 } else if (cnt > 3) {
1886                         dev_info(&pf->pdev->dev,
1887                                  "nvm read: bad command string, cnt=%d\n", cnt);
1888                         goto command_write_done;
1889                 }
1890
1891                 /* set the max length */
1892                 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1893
1894                 bytes = 2 * buffer_len;
1895
1896                 /* read at least 1k bytes, no more than 4kB */
1897                 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1898                 buff = kzalloc(bytes, GFP_KERNEL);
1899                 if (!buff)
1900                         goto command_write_done;
1901
1902                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1903                 if (ret) {
1904                         dev_info(&pf->pdev->dev,
1905                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1906                                  ret, pf->hw.aq.asq_last_status);
1907                         kfree(buff);
1908                         goto command_write_done;
1909                 }
1910
1911                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1912                                        bytes, (u8 *)buff, true, NULL);
1913                 i40e_release_nvm(&pf->hw);
1914                 if (ret) {
1915                         dev_info(&pf->pdev->dev,
1916                                  "Read NVM AQ failed err=%d status=0x%x\n",
1917                                  ret, pf->hw.aq.asq_last_status);
1918                 } else {
1919                         dev_info(&pf->pdev->dev,
1920                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1921                                  module, offset, buffer_len);
1922                         if (bytes)
1923                                 print_hex_dump(KERN_INFO, "NVM Dump: ",
1924                                         DUMP_PREFIX_OFFSET, 16, 2,
1925                                         buff, bytes, true);
1926                 }
1927                 kfree(buff);
1928                 buff = NULL;
1929         } else {
1930                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1931                 dev_info(&pf->pdev->dev, "available commands\n");
1932                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1933                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1934                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1935                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1936                 dev_info(&pf->pdev->dev, "  add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1937                 dev_info(&pf->pdev->dev, "  del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1938                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1939                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1940                 dev_info(&pf->pdev->dev, "  dump switch\n");
1941                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1942                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1943                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1944                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1945                 dev_info(&pf->pdev->dev, "  dump stats\n");
1946                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1947                 dev_info(&pf->pdev->dev, "  msg_enable [level]\n");
1948                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1949                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1950                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1951                 dev_info(&pf->pdev->dev, "  clear_stats pf\n");
1952                 dev_info(&pf->pdev->dev, "  pfr\n");
1953                 dev_info(&pf->pdev->dev, "  corer\n");
1954                 dev_info(&pf->pdev->dev, "  globr\n");
1955                 dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1956                 dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1957                 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");
1958                 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");
1959                 dev_info(&pf->pdev->dev, "  fd-atr off\n");
1960                 dev_info(&pf->pdev->dev, "  fd-atr on\n");
1961                 dev_info(&pf->pdev->dev, "  fd-sb off\n");
1962                 dev_info(&pf->pdev->dev, "  fd-sb on\n");
1963                 dev_info(&pf->pdev->dev, "  lldp start\n");
1964                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1965                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1966                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1967                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1968                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1969                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1970         }
1971
1972 command_write_done:
1973         kfree(cmd_buf);
1974         cmd_buf = NULL;
1975         return count;
1976 }
1977
1978 static const struct file_operations i40e_dbg_command_fops = {
1979         .owner = THIS_MODULE,
1980         .open =  simple_open,
1981         .read =  i40e_dbg_command_read,
1982         .write = i40e_dbg_command_write,
1983 };
1984
1985 /**************************************************************
1986  * netdev_ops
1987  * The netdev_ops entry in debugfs is for giving the driver commands
1988  * to be executed from the netdev operations.
1989  **************************************************************/
1990 static char i40e_dbg_netdev_ops_buf[256] = "hello world";
1991
1992 /**
1993  * i40e_dbg_netdev_ops - read for netdev_ops datum
1994  * @filp: the opened file
1995  * @buffer: where to write the data for the user to read
1996  * @count: the size of the user's buffer
1997  * @ppos: file position offset
1998  **/
1999 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
2000                                         size_t count, loff_t *ppos)
2001 {
2002         struct i40e_pf *pf = filp->private_data;
2003         int bytes_not_copied;
2004         int buf_size = 256;
2005         char *buf;
2006         int len;
2007
2008         /* don't allow partal reads */
2009         if (*ppos != 0)
2010                 return 0;
2011         if (count < buf_size)
2012                 return -ENOSPC;
2013
2014         buf = kzalloc(buf_size, GFP_KERNEL);
2015         if (!buf)
2016                 return -ENOSPC;
2017
2018         len = snprintf(buf, buf_size, "%s: %s\n",
2019                        pf->vsi[pf->lan_vsi]->netdev->name,
2020                        i40e_dbg_netdev_ops_buf);
2021
2022         bytes_not_copied = copy_to_user(buffer, buf, len);
2023         kfree(buf);
2024
2025         if (bytes_not_copied < 0)
2026                 return bytes_not_copied;
2027
2028         *ppos = len;
2029         return len;
2030 }
2031
2032 /**
2033  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
2034  * @filp: the opened file
2035  * @buffer: where to find the user's data
2036  * @count: the length of the user's data
2037  * @ppos: file position offset
2038  **/
2039 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
2040                                          const char __user *buffer,
2041                                          size_t count, loff_t *ppos)
2042 {
2043         struct i40e_pf *pf = filp->private_data;
2044         int bytes_not_copied;
2045         struct i40e_vsi *vsi;
2046         char *buf_tmp;
2047         int vsi_seid;
2048         int i, cnt;
2049
2050         /* don't allow partial writes */
2051         if (*ppos != 0)
2052                 return 0;
2053         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
2054                 return -ENOSPC;
2055
2056         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
2057         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
2058                                           buffer, count);
2059         if (bytes_not_copied < 0)
2060                 return bytes_not_copied;
2061         else if (bytes_not_copied > 0)
2062                 count -= bytes_not_copied;
2063         i40e_dbg_netdev_ops_buf[count] = '\0';
2064
2065         buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
2066         if (buf_tmp) {
2067                 *buf_tmp = '\0';
2068                 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
2069         }
2070
2071         if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
2072                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2073                 if (cnt != 1) {
2074                         dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
2075                         goto netdev_ops_write_done;
2076                 }
2077                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2078                 if (!vsi) {
2079                         dev_info(&pf->pdev->dev,
2080                                  "tx_timeout: VSI %d not found\n", vsi_seid);
2081                         goto netdev_ops_write_done;
2082                 }
2083                 if (rtnl_trylock()) {
2084                         vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
2085                         rtnl_unlock();
2086                         dev_info(&pf->pdev->dev, "tx_timeout called\n");
2087                 } else {
2088                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2089                 }
2090         } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
2091                 int mtu;
2092                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
2093                              &vsi_seid, &mtu);
2094                 if (cnt != 2) {
2095                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
2096                         goto netdev_ops_write_done;
2097                 }
2098                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2099                 if (!vsi) {
2100                         dev_info(&pf->pdev->dev,
2101                                  "change_mtu: VSI %d not found\n", vsi_seid);
2102                         goto netdev_ops_write_done;
2103                 }
2104                 if (rtnl_trylock()) {
2105                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
2106                                                                 mtu);
2107                         rtnl_unlock();
2108                         dev_info(&pf->pdev->dev, "change_mtu called\n");
2109                 } else {
2110                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2111                 }
2112
2113         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
2114                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2115                 if (cnt != 1) {
2116                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
2117                         goto netdev_ops_write_done;
2118                 }
2119                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2120                 if (!vsi) {
2121                         dev_info(&pf->pdev->dev,
2122                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
2123                         goto netdev_ops_write_done;
2124                 }
2125                 if (rtnl_trylock()) {
2126                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
2127                         rtnl_unlock();
2128                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
2129                 } else {
2130                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2131                 }
2132
2133         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
2134                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
2135                 if (cnt != 1) {
2136                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
2137                         goto netdev_ops_write_done;
2138                 }
2139                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2140                 if (!vsi) {
2141                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
2142                                  vsi_seid);
2143                         goto netdev_ops_write_done;
2144                 }
2145                 for (i = 0; i < vsi->num_q_vectors; i++)
2146                         napi_schedule(&vsi->q_vectors[i]->napi);
2147                 dev_info(&pf->pdev->dev, "napi called\n");
2148         } else {
2149                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
2150                          i40e_dbg_netdev_ops_buf);
2151                 dev_info(&pf->pdev->dev, "available commands\n");
2152                 dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
2153                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
2154                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
2155                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
2156         }
2157 netdev_ops_write_done:
2158         return count;
2159 }
2160
2161 static const struct file_operations i40e_dbg_netdev_ops_fops = {
2162         .owner = THIS_MODULE,
2163         .open = simple_open,
2164         .read = i40e_dbg_netdev_ops_read,
2165         .write = i40e_dbg_netdev_ops_write,
2166 };
2167
2168 /**
2169  * i40e_dbg_pf_init - setup the debugfs directory for the pf
2170  * @pf: the pf that is starting up
2171  **/
2172 void i40e_dbg_pf_init(struct i40e_pf *pf)
2173 {
2174         struct dentry *pfile;
2175         const char *name = pci_name(pf->pdev);
2176         const struct device *dev = &pf->pdev->dev;
2177
2178         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
2179         if (!pf->i40e_dbg_pf)
2180                 return;
2181
2182         pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
2183                                     &i40e_dbg_command_fops);
2184         if (!pfile)
2185                 goto create_failed;
2186
2187         pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2188                                     &i40e_dbg_dump_fops);
2189         if (!pfile)
2190                 goto create_failed;
2191
2192         pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
2193                                     &i40e_dbg_netdev_ops_fops);
2194         if (!pfile)
2195                 goto create_failed;
2196
2197         return;
2198
2199 create_failed:
2200         dev_info(dev, "debugfs dir/file for %s failed\n", name);
2201         debugfs_remove_recursive(pf->i40e_dbg_pf);
2202         return;
2203 }
2204
2205 /**
2206  * i40e_dbg_pf_exit - clear out the pf's debugfs entries
2207  * @pf: the pf that is stopping
2208  **/
2209 void i40e_dbg_pf_exit(struct i40e_pf *pf)
2210 {
2211         debugfs_remove_recursive(pf->i40e_dbg_pf);
2212         pf->i40e_dbg_pf = NULL;
2213
2214         kfree(i40e_dbg_dump_buf);
2215         i40e_dbg_dump_buf = NULL;
2216 }
2217
2218 /**
2219  * i40e_dbg_init - start up debugfs for the driver
2220  **/
2221 void i40e_dbg_init(void)
2222 {
2223         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2224         if (!i40e_dbg_root)
2225                 pr_info("init of debugfs failed\n");
2226 }
2227
2228 /**
2229  * i40e_dbg_exit - clean out the driver's debugfs entries
2230  **/
2231 void i40e_dbg_exit(void)
2232 {
2233         debugfs_remove_recursive(i40e_dbg_root);
2234         i40e_dbg_root = NULL;
2235 }
2236
2237 #endif /* CONFIG_DEBUG_FS */