Pileus Git - ~andy/linux/blob - 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         union i40e_rx_desc *ds;
 756         struct i40e_ring ring;
 757         struct i40e_vsi *vsi;
 758         int i;
 759
 760         vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 761         if (!vsi) {
 762                 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 763                 return;
 764         }
 765         if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 766                 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 767                 return;
 768         }
 769         if (!vsi->tx_rings) {
 770                 dev_info(&pf->pdev->dev,
 771                          "descriptor rings have not been allocated for vsi %d\n",
 772                          vsi_seid);
 773                 return;
 774         }
 775         if (is_rx_ring)
 776                 ring = *vsi->rx_rings[ring_id];
 777         else
 778                 ring = *vsi->tx_rings[ring_id];
 779         if (cnt == 2) {
 780                 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 781                          vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
 782                 for (i = 0; i < ring.count; i++) {
 783                         if (is_rx_ring)
 784                                 ds = I40E_RX_DESC(&ring, i);
 785                         else
 786                                 ds = (union i40e_rx_desc *)
 787                                         I40E_TX_DESC(&ring, i);
 788                         if ((sizeof(union i40e_rx_desc) ==
 789                             sizeof(union i40e_16byte_rx_desc)) || (!is_rx_ring))
 790                                 dev_info(&pf->pdev->dev,
 791                                          "   d[%03i] = 0x%016llx 0x%016llx\n", i,
 792                                          ds->read.pkt_addr, ds->read.hdr_addr);
 793                         else
 794                                 dev_info(&pf->pdev->dev,
 795                                          "   d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 796                                          i, ds->read.pkt_addr,
 797                                          ds->read.hdr_addr,
 798                                          ds->read.rsvd1, ds->read.rsvd2);
 799                 }
 800         } else if (cnt == 3) {
 801                 if (desc_n >= ring.count || desc_n < 0) {
 802                         dev_info(&pf->pdev->dev,
 803                                  "descriptor %d not found\n", desc_n);
 804                         return;
 805                 }
 806                 if (is_rx_ring)
 807                         ds = I40E_RX_DESC(&ring, desc_n);
 808                 else
 809                         ds = (union i40e_rx_desc *)I40E_TX_DESC(&ring, desc_n);
 810                 if ((sizeof(union i40e_rx_desc) ==
 811                     sizeof(union i40e_16byte_rx_desc)) || (!is_rx_ring))
 812                         dev_info(&pf->pdev->dev,
 813                                  "vsi = %02i %s ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
 814                                  vsi_seid, is_rx_ring ? "rx" : "tx", ring_id,
 815                                  desc_n, ds->read.pkt_addr, ds->read.hdr_addr);
 816                 else
 817                         dev_info(&pf->pdev->dev,
 818                                  "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 819                                  vsi_seid, ring_id,
 820                                  desc_n, ds->read.pkt_addr, ds->read.hdr_addr,
 821                                  ds->read.rsvd1, ds->read.rsvd2);
 822         } else {
 823                 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
 824         }
 825 }
 826
 827 /**
 828  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 829  * @pf: the i40e_pf created in command write
 830  **/
 831 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 832 {
 833         int i;
 834
 835         for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
 836                 if (pf->vsi[i])
 837                         dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 838                                  i, pf->vsi[i]->seid);
 839 }
 840
 841 /**
 842  * i40e_dbg_dump_stats - handles dump stats write into command datum
 843  * @pf: the i40e_pf created in command write
 844  * @estats: the eth stats structure to be dumped
 845  **/
 846 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 847                                     struct i40e_eth_stats *estats)
 848 {
 849         dev_info(&pf->pdev->dev, "  ethstats:\n");
 850         dev_info(&pf->pdev->dev,
 851                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 852                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 853         dev_info(&pf->pdev->dev,
 854                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld \trx_errors = \t%lld\n",
 855                  estats->rx_broadcast, estats->rx_discards, estats->rx_errors);
 856         dev_info(&pf->pdev->dev,
 857                  "    rx_missed = \t%lld \trx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 858                  estats->rx_missed, estats->rx_unknown_protocol,
 859                  estats->tx_bytes);
 860         dev_info(&pf->pdev->dev,
 861                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 862                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 863         dev_info(&pf->pdev->dev,
 864                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 865                  estats->tx_discards, estats->tx_errors);
 866 }
 867
 868 /**
 869  * i40e_dbg_dump_stats - handles dump stats write into command datum
 870  * @pf: the i40e_pf created in command write
 871  * @stats: the stats structure to be dumped
 872  **/
 873 static void i40e_dbg_dump_stats(struct i40e_pf *pf,
 874                                 struct i40e_hw_port_stats *stats)
 875 {
 876         int i;
 877
 878         dev_info(&pf->pdev->dev, "  stats:\n");
 879         dev_info(&pf->pdev->dev,
 880                  "    crc_errors = \t\t%lld \tillegal_bytes = \t%lld \terror_bytes = \t\t%lld\n",
 881                  stats->crc_errors, stats->illegal_bytes, stats->error_bytes);
 882         dev_info(&pf->pdev->dev,
 883                  "    mac_local_faults = \t%lld \tmac_remote_faults = \t%lld \trx_length_errors = \t%lld\n",
 884                  stats->mac_local_faults, stats->mac_remote_faults,
 885                  stats->rx_length_errors);
 886         dev_info(&pf->pdev->dev,
 887                  "    link_xon_rx = \t\t%lld \tlink_xoff_rx = \t\t%lld \tlink_xon_tx = \t\t%lld\n",
 888                  stats->link_xon_rx, stats->link_xoff_rx, stats->link_xon_tx);
 889         dev_info(&pf->pdev->dev,
 890                  "    link_xoff_tx = \t\t%lld \trx_size_64 = \t\t%lld \trx_size_127 = \t\t%lld\n",
 891                  stats->link_xoff_tx, stats->rx_size_64, stats->rx_size_127);
 892         dev_info(&pf->pdev->dev,
 893                  "    rx_size_255 = \t\t%lld \trx_size_511 = \t\t%lld \trx_size_1023 = \t\t%lld\n",
 894                  stats->rx_size_255, stats->rx_size_511, stats->rx_size_1023);
 895         dev_info(&pf->pdev->dev,
 896                  "    rx_size_big = \t\t%lld \trx_undersize = \t\t%lld \trx_jabber = \t\t%lld\n",
 897                  stats->rx_size_big, stats->rx_undersize, stats->rx_jabber);
 898         dev_info(&pf->pdev->dev,
 899                  "    rx_fragments = \t\t%lld \trx_oversize = \t\t%lld \ttx_size_64 = \t\t%lld\n",
 900                  stats->rx_fragments, stats->rx_oversize, stats->tx_size_64);
 901         dev_info(&pf->pdev->dev,
 902                  "    tx_size_127 = \t\t%lld \ttx_size_255 = \t\t%lld \ttx_size_511 = \t\t%lld\n",
 903                  stats->tx_size_127, stats->tx_size_255, stats->tx_size_511);
 904         dev_info(&pf->pdev->dev,
 905                  "    tx_size_1023 = \t\t%lld \ttx_size_big = \t\t%lld \tmac_short_packet_dropped = \t%lld\n",
 906                  stats->tx_size_1023, stats->tx_size_big,
 907                  stats->mac_short_packet_dropped);
 908         for (i = 0; i < 8; i += 4) {
 909                 dev_info(&pf->pdev->dev,
 910                          "    priority_xon_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 911                          i, stats->priority_xon_rx[i],
 912                          i+1, stats->priority_xon_rx[i+1],
 913                          i+2, stats->priority_xon_rx[i+2],
 914                          i+3, stats->priority_xon_rx[i+3]);
 915         }
 916         for (i = 0; i < 8; i += 4) {
 917                 dev_info(&pf->pdev->dev,
 918                          "    priority_xoff_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 919                          i, stats->priority_xoff_rx[i],
 920                          i+1, stats->priority_xoff_rx[i+1],
 921                          i+2, stats->priority_xoff_rx[i+2],
 922                          i+3, stats->priority_xoff_rx[i+3]);
 923         }
 924         for (i = 0; i < 8; i += 4) {
 925                 dev_info(&pf->pdev->dev,
 926                          "    priority_xon_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 927                          i, stats->priority_xon_tx[i],
 928                          i+1, stats->priority_xon_tx[i+1],
 929                          i+2, stats->priority_xon_tx[i+2],
 930                          i+3, stats->priority_xon_rx[i+3]);
 931         }
 932         for (i = 0; i < 8; i += 4) {
 933                 dev_info(&pf->pdev->dev,
 934                          "    priority_xoff_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 935                          i, stats->priority_xoff_tx[i],
 936                          i+1, stats->priority_xoff_tx[i+1],
 937                          i+2, stats->priority_xoff_tx[i+2],
 938                          i+3, stats->priority_xoff_tx[i+3]);
 939         }
 940         for (i = 0; i < 8; i += 4) {
 941                 dev_info(&pf->pdev->dev,
 942                          "    priority_xon_2_xoff[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 943                          i, stats->priority_xon_2_xoff[i],
 944                          i+1, stats->priority_xon_2_xoff[i+1],
 945                          i+2, stats->priority_xon_2_xoff[i+2],
 946                          i+3, stats->priority_xon_2_xoff[i+3]);
 947         }
 948
 949         i40e_dbg_dump_eth_stats(pf, &stats->eth);
 950 }
 951
 952 /**
 953  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 954  * @pf: the i40e_pf created in command write
 955  * @seid: the seid the user put in
 956  **/
 957 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 958 {
 959         struct i40e_veb *veb;
 960
 961         if ((seid < I40E_BASE_VEB_SEID) ||
 962             (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
 963                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
 964                 return;
 965         }
 966
 967         veb = i40e_dbg_find_veb(pf, seid);
 968         if (!veb) {
 969                 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 970                 return;
 971         }
 972         dev_info(&pf->pdev->dev,
 973                  "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d\n",
 974                  veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 975                  veb->uplink_seid);
 976         i40e_dbg_dump_eth_stats(pf, &veb->stats);
 977 }
 978
 979 /**
 980  * i40e_dbg_dump_veb_all - dumps all known veb's stats
 981  * @pf: the i40e_pf created in command write
 982  **/
 983 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 984 {
 985         struct i40e_veb *veb;
 986         int i;
 987
 988         for (i = 0; i < I40E_MAX_VEB; i++) {
 989                 veb = pf->veb[i];
 990                 if (veb)
 991                         i40e_dbg_dump_veb_seid(pf, veb->seid);
 992         }
 993 }
 994
 995 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
 996 /**
 997  * i40e_dbg_command_write - write into command datum
 998  * @filp: the opened file
 999  * @buffer: where to find the user's data
1000  * @count: the length of the user's data
1001  * @ppos: file position offset
1002  **/
1003 static ssize_t i40e_dbg_command_write(struct file *filp,
1004                                       const char __user *buffer,
1005                                       size_t count, loff_t *ppos)
1006 {
1007         struct i40e_pf *pf = filp->private_data;
1008         char *cmd_buf, *cmd_buf_tmp;
1009         int bytes_not_copied;
1010         struct i40e_vsi *vsi;
1011         int vsi_seid;
1012         int veb_seid;
1013         int cnt;
1014
1015         /* don't allow partial writes */
1016         if (*ppos != 0)
1017                 return 0;
1018
1019         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
1020         if (!cmd_buf)
1021                 return count;
1022         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
1023         if (bytes_not_copied < 0)
1024                 return bytes_not_copied;
1025         if (bytes_not_copied > 0)
1026                 count -= bytes_not_copied;
1027         cmd_buf[count] = '\0';
1028
1029         cmd_buf_tmp = strchr(cmd_buf, '\n');
1030         if (cmd_buf_tmp) {
1031                 *cmd_buf_tmp = '\0';
1032                 count = cmd_buf_tmp - cmd_buf + 1;
1033         }
1034
1035         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
1036                 vsi_seid = -1;
1037                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1038                 if (cnt == 0) {
1039                         /* default to PF VSI */
1040                         vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1041                 } else if (vsi_seid < 0) {
1042                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1043                                  vsi_seid);
1044                         goto command_write_done;
1045                 }
1046
1047                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1048                 if (vsi)
1049                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1050                                  vsi->seid, vsi->uplink_seid);
1051                 else
1052                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1053
1054         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1055                 sscanf(&cmd_buf[7], "%i", &vsi_seid);
1056                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1057                 if (!vsi) {
1058                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1059                                  vsi_seid);
1060                         goto command_write_done;
1061                 }
1062
1063                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1064                 i40e_vsi_release(vsi);
1065
1066         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1067                 struct i40e_veb *veb;
1068                 int uplink_seid, i;
1069
1070                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1071                 if (cnt != 2) {
1072                         dev_info(&pf->pdev->dev,
1073                                  "add relay: bad command string, cnt=%d\n",
1074                                  cnt);
1075                         goto command_write_done;
1076                 } else if (uplink_seid < 0) {
1077                         dev_info(&pf->pdev->dev,
1078                                  "add relay %d: bad uplink seid\n",
1079                                  uplink_seid);
1080                         goto command_write_done;
1081                 }
1082
1083                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1084                 if (!vsi) {
1085                         dev_info(&pf->pdev->dev,
1086                                  "add relay: VSI %d not found\n", vsi_seid);
1087                         goto command_write_done;
1088                 }
1089
1090                 for (i = 0; i < I40E_MAX_VEB; i++)
1091                         if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1092                                 break;
1093                 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1094                     uplink_seid != pf->mac_seid) {
1095                         dev_info(&pf->pdev->dev,
1096                                  "add relay: relay uplink %d not found\n",
1097                                  uplink_seid);
1098                         goto command_write_done;
1099                 }
1100
1101                 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1102                                      vsi->tc_config.enabled_tc);
1103                 if (veb)
1104                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1105                 else
1106                         dev_info(&pf->pdev->dev, "add relay failed\n");
1107
1108         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1109                 int i;
1110                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1111                 if (cnt != 1) {
1112                         dev_info(&pf->pdev->dev,
1113                                  "del relay: bad command string, cnt=%d\n",
1114                                  cnt);
1115                         goto command_write_done;
1116                 } else if (veb_seid < 0) {
1117                         dev_info(&pf->pdev->dev,
1118                                  "del relay %d: bad relay seid\n", veb_seid);
1119                         goto command_write_done;
1120                 }
1121
1122                 /* find the veb */
1123                 for (i = 0; i < I40E_MAX_VEB; i++)
1124                         if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1125                                 break;
1126                 if (i >= I40E_MAX_VEB) {
1127                         dev_info(&pf->pdev->dev,
1128                                  "del relay: relay %d not found\n", veb_seid);
1129                         goto command_write_done;
1130                 }
1131
1132                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1133                 i40e_veb_release(pf->veb[i]);
1134
1135         } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
1136                 struct i40e_mac_filter *f;
1137                 int vlan = 0;
1138                 u8 ma[6];
1139                 int ret;
1140
1141                 cnt = sscanf(&cmd_buf[11],
1142                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1143                              &vsi_seid,
1144                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1145                              &vlan);
1146                 if (cnt == 7) {
1147                         vlan = 0;
1148                 } else if (cnt != 8) {
1149                         dev_info(&pf->pdev->dev,
1150                                  "add macaddr: bad command string, cnt=%d\n",
1151                                  cnt);
1152                         goto command_write_done;
1153                 }
1154
1155                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1156                 if (!vsi) {
1157                         dev_info(&pf->pdev->dev,
1158                                  "add macaddr: VSI %d not found\n", vsi_seid);
1159                         goto command_write_done;
1160                 }
1161
1162                 f = i40e_add_filter(vsi, ma, vlan, false, false);
1163                 ret = i40e_sync_vsi_filters(vsi);
1164                 if (f && !ret)
1165                         dev_info(&pf->pdev->dev,
1166                                  "add macaddr: %pM vlan=%d added to VSI %d\n",
1167                                  ma, vlan, vsi_seid);
1168                 else
1169                         dev_info(&pf->pdev->dev,
1170                                  "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1171                                  ma, vlan, vsi_seid, f, ret);
1172
1173         } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
1174                 int vlan = 0;
1175                 u8 ma[6];
1176                 int ret;
1177
1178                 cnt = sscanf(&cmd_buf[11],
1179                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1180                              &vsi_seid,
1181                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1182                              &vlan);
1183                 if (cnt == 7) {
1184                         vlan = 0;
1185                 } else if (cnt != 8) {
1186                         dev_info(&pf->pdev->dev,
1187                                  "del macaddr: bad command string, cnt=%d\n",
1188                                  cnt);
1189                         goto command_write_done;
1190                 }
1191
1192                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1193                 if (!vsi) {
1194                         dev_info(&pf->pdev->dev,
1195                                  "del macaddr: VSI %d not found\n", vsi_seid);
1196                         goto command_write_done;
1197                 }
1198
1199                 i40e_del_filter(vsi, ma, vlan, false, false);
1200                 ret = i40e_sync_vsi_filters(vsi);
1201                 if (!ret)
1202                         dev_info(&pf->pdev->dev,
1203                                  "del macaddr: %pM vlan=%d removed from VSI %d\n",
1204                                  ma, vlan, vsi_seid);
1205                 else
1206                         dev_info(&pf->pdev->dev,
1207                                  "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1208                                  ma, vlan, vsi_seid, ret);
1209
1210         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
1211                 i40e_status ret;
1212                 u16 vid;
1213                 int v;
1214
1215                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1216                 if (cnt != 2) {
1217                         dev_info(&pf->pdev->dev,
1218                                  "add pvid: bad command string, cnt=%d\n", cnt);
1219                         goto command_write_done;
1220                 }
1221
1222                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1223                 if (!vsi) {
1224                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1225                                  vsi_seid);
1226                         goto command_write_done;
1227                 }
1228
1229                 vid = (unsigned)v;
1230                 ret = i40e_vsi_add_pvid(vsi, vid);
1231                 if (!ret)
1232                         dev_info(&pf->pdev->dev,
1233                                  "add pvid: %d added to VSI %d\n",
1234                                  vid, vsi_seid);
1235                 else
1236                         dev_info(&pf->pdev->dev,
1237                                  "add pvid: %d to VSI %d failed, ret=%d\n",
1238                                  vid, vsi_seid, ret);
1239
1240         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1241
1242                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1243                 if (cnt != 1) {
1244                         dev_info(&pf->pdev->dev,
1245                                  "del pvid: bad command string, cnt=%d\n",
1246                                  cnt);
1247                         goto command_write_done;
1248                 }
1249
1250                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1251                 if (!vsi) {
1252                         dev_info(&pf->pdev->dev,
1253                                  "del pvid: VSI %d not found\n", vsi_seid);
1254                         goto command_write_done;
1255                 }
1256
1257                 i40e_vsi_remove_pvid(vsi);
1258                 dev_info(&pf->pdev->dev,
1259                          "del pvid: removed from VSI %d\n", vsi_seid);
1260
1261         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1262                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1263                         i40e_fetch_switch_configuration(pf, true);
1264                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1265                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1266                         if (cnt > 0)
1267                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1268                         else
1269                                 i40e_dbg_dump_vsi_no_seid(pf);
1270                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1271                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1272                         if (cnt > 0)
1273                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1274                         else
1275                                 i40e_dbg_dump_veb_all(pf);
1276                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1277                         int ring_id, desc_n;
1278                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
1279                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1280                                              &vsi_seid, &ring_id, &desc_n);
1281                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1282                                                    desc_n, pf, true);
1283                         } else if (strncmp(&cmd_buf[10], "tx", 2)
1284                                         == 0) {
1285                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1286                                              &vsi_seid, &ring_id, &desc_n);
1287                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1288                                                    desc_n, pf, false);
1289                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1290                                 i40e_dbg_dump_aq_desc(pf);
1291                         } else {
1292                                 dev_info(&pf->pdev->dev,
1293                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1294                                 dev_info(&pf->pdev->dev,
1295                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1296                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
1297                         }
1298                 } else if (strncmp(&cmd_buf[5], "stats", 5) == 0) {
1299                         dev_info(&pf->pdev->dev, "pf stats:\n");
1300                         i40e_dbg_dump_stats(pf, &pf->stats);
1301                         dev_info(&pf->pdev->dev, "pf stats_offsets:\n");
1302                         i40e_dbg_dump_stats(pf, &pf->stats_offsets);
1303                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1304                         dev_info(&pf->pdev->dev,
1305                                  "core reset count: %d\n", pf->corer_count);
1306                         dev_info(&pf->pdev->dev,
1307                                  "global reset count: %d\n", pf->globr_count);
1308                         dev_info(&pf->pdev->dev,
1309                                  "emp reset count: %d\n", pf->empr_count);
1310                         dev_info(&pf->pdev->dev,
1311                                  "pf reset count: %d\n", pf->pfr_count);
1312                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1313                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
1314                         struct i40e_dcbx_config *cfg =
1315                                                 &pf->hw.local_dcbx_config;
1316                         struct i40e_dcbx_config *r_cfg =
1317                                                 &pf->hw.remote_dcbx_config;
1318                         int i, ret;
1319
1320                         bw_data = kzalloc(sizeof(
1321                                     struct i40e_aqc_query_port_ets_config_resp),
1322                                           GFP_KERNEL);
1323                         if (!bw_data) {
1324                                 ret = -ENOMEM;
1325                                 goto command_write_done;
1326                         }
1327
1328                         ret = i40e_aq_query_port_ets_config(&pf->hw,
1329                                                             pf->mac_seid,
1330                                                             bw_data, NULL);
1331                         if (ret) {
1332                                 dev_info(&pf->pdev->dev,
1333                                          "Query Port ETS Config AQ command failed =0x%x\n",
1334                                          pf->hw.aq.asq_last_status);
1335                                 kfree(bw_data);
1336                                 bw_data = NULL;
1337                                 goto command_write_done;
1338                         }
1339                         dev_info(&pf->pdev->dev,
1340                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1341                                  bw_data->tc_valid_bits,
1342                                  bw_data->tc_strict_priority_bits,
1343                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1344                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1345                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1346                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1347                                          bw_data->tc_bw_share_credits[i],
1348                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1349                         }
1350
1351                         kfree(bw_data);
1352                         bw_data = NULL;
1353
1354                         dev_info(&pf->pdev->dev,
1355                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1356                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1357                                  cfg->etscfg.maxtcs);
1358                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1359                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1360                                          i, cfg->etscfg.prioritytable[i],
1361                                          cfg->etscfg.tcbwtable[i],
1362                                          cfg->etscfg.tsatable[i]);
1363                         }
1364                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1365                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1366                                          i, cfg->etsrec.prioritytable[i],
1367                                          cfg->etsrec.tcbwtable[i],
1368                                          cfg->etsrec.tsatable[i]);
1369                         }
1370                         dev_info(&pf->pdev->dev,
1371                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1372                                  cfg->pfc.willing, cfg->pfc.mbc,
1373                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1374                         dev_info(&pf->pdev->dev,
1375                                  "port app_table: num_apps=%d\n", cfg->numapps);
1376                         for (i = 0; i < cfg->numapps; i++) {
1377                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1378                                          i, cfg->app[i].priority,
1379                                          cfg->app[i].selector,
1380                                          cfg->app[i].protocolid);
1381                         }
1382                         /* Peer TLV DCBX data */
1383                         dev_info(&pf->pdev->dev,
1384                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1385                                  r_cfg->etscfg.willing,
1386                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1387                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1388                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1389                                          i, r_cfg->etscfg.prioritytable[i],
1390                                          r_cfg->etscfg.tcbwtable[i],
1391                                          r_cfg->etscfg.tsatable[i]);
1392                         }
1393                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1394                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1395                                          i, r_cfg->etsrec.prioritytable[i],
1396                                          r_cfg->etsrec.tcbwtable[i],
1397                                          r_cfg->etsrec.tsatable[i]);
1398                         }
1399                         dev_info(&pf->pdev->dev,
1400                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1401                                  r_cfg->pfc.willing,
1402                                  r_cfg->pfc.mbc,
1403                                  r_cfg->pfc.pfccap,
1404                                  r_cfg->pfc.pfcenable);
1405                         dev_info(&pf->pdev->dev,
1406                                  "remote port app_table: num_apps=%d\n",
1407                                  r_cfg->numapps);
1408                         for (i = 0; i < r_cfg->numapps; i++) {
1409                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1410                                          i, r_cfg->app[i].priority,
1411                                          r_cfg->app[i].selector,
1412                                          r_cfg->app[i].protocolid);
1413                         }
1414                 } else {
1415                         dev_info(&pf->pdev->dev,
1416                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1417                         dev_info(&pf->pdev->dev, "dump switch, dump vsi [seid] or\n");
1418                         dev_info(&pf->pdev->dev, "dump stats\n");
1419                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1420                         dev_info(&pf->pdev->dev, "dump port\n");
1421                         dev_info(&pf->pdev->dev,
1422                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1423                 }
1424
1425         } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1426                 u32 level;
1427                 cnt = sscanf(&cmd_buf[10], "%i", &level);
1428                 if (cnt) {
1429                         if (I40E_DEBUG_USER & level) {
1430                                 pf->hw.debug_mask = level;
1431                                 dev_info(&pf->pdev->dev,
1432                                          "set hw.debug_mask = 0x%08x\n",
1433                                          pf->hw.debug_mask);
1434                         }
1435                         pf->msg_enable = level;
1436                         dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1437                                  pf->msg_enable);
1438                 } else {
1439                         dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1440                                  pf->msg_enable);
1441                 }
1442         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1443                 dev_info(&pf->pdev->dev, "forcing PFR\n");
1444                 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
1445
1446         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1447                 dev_info(&pf->pdev->dev, "forcing CoreR\n");
1448                 i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED));
1449
1450         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1451                 dev_info(&pf->pdev->dev, "forcing GlobR\n");
1452                 i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED));
1453
1454         } else if (strncmp(cmd_buf, "empr", 4) == 0) {
1455                 dev_info(&pf->pdev->dev, "forcing EMPR\n");
1456                 i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED));
1457
1458         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1459                 u32 address;
1460                 u32 value;
1461                 cnt = sscanf(&cmd_buf[4], "%i", &address);
1462                 if (cnt != 1) {
1463                         dev_info(&pf->pdev->dev, "read <reg>\n");
1464                         goto command_write_done;
1465                 }
1466
1467                 /* check the range on address */
1468                 if (address >= I40E_MAX_REGISTER) {
1469                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n",
1470                                  address);
1471                         goto command_write_done;
1472                 }
1473
1474                 value = rd32(&pf->hw, address);
1475                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1476                          address, value);
1477
1478         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1479                 u32 address, value;
1480                 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1481                 if (cnt != 2) {
1482                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1483                         goto command_write_done;
1484                 }
1485
1486                 /* check the range on address */
1487                 if (address >= I40E_MAX_REGISTER) {
1488                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n",
1489                                  address);
1490                         goto command_write_done;
1491                 }
1492                 wr32(&pf->hw, address, value);
1493                 value = rd32(&pf->hw, address);
1494                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1495                          address, value);
1496         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1497                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1498                         cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1499                         if (cnt == 0) {
1500                                 int i;
1501                                 for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
1502                                         i40e_vsi_reset_stats(pf->vsi[i]);
1503                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1504                         } else if (cnt == 1) {
1505                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1506                                 if (!vsi) {
1507                                         dev_info(&pf->pdev->dev,
1508                                                  "clear_stats vsi: bad vsi %d\n",
1509                                                  vsi_seid);
1510                                         goto command_write_done;
1511                                 }
1512                                 i40e_vsi_reset_stats(vsi);
1513                                 dev_info(&pf->pdev->dev,
1514                                          "vsi clear stats called for vsi %d\n",
1515                                          vsi_seid);
1516                         } else {
1517                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1518                         }
1519                 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) {
1520                         i40e_pf_reset_stats(pf);
1521                         dev_info(&pf->pdev->dev, "pf clear stats called\n");
1522                 } else {
1523                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n");
1524                 }
1525         } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1526                 struct i40e_aq_desc *desc;
1527                 i40e_status ret;
1528
1529                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1530                 if (!desc)
1531                         goto command_write_done;
1532                 cnt = sscanf(&cmd_buf[11],
1533                              "%hx %hx %hx %hx %x %x %x %x %x %x",
1534                              &desc->flags,
1535                              &desc->opcode, &desc->datalen, &desc->retval,
1536                              &desc->cookie_high, &desc->cookie_low,
1537                              &desc->params.internal.param0,
1538                              &desc->params.internal.param1,
1539                              &desc->params.internal.param2,
1540                              &desc->params.internal.param3);
1541                 if (cnt != 10) {
1542                         dev_info(&pf->pdev->dev,
1543                                  "send aq_cmd: bad command string, cnt=%d\n",
1544                                  cnt);
1545                         kfree(desc);
1546                         desc = NULL;
1547                         goto command_write_done;
1548                 }
1549                 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1550                 if (!ret) {
1551                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1552                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1553                         dev_info(&pf->pdev->dev,
1554                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1555                                  desc->opcode, pf->hw.aq.asq_last_status);
1556                 } else {
1557                         dev_info(&pf->pdev->dev,
1558                                  "AQ command send failed Opcode %x Status: %d\n",
1559                                  desc->opcode, ret);
1560                 }
1561                 dev_info(&pf->pdev->dev,
1562                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1563                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1564                          desc->cookie_high, desc->cookie_low,
1565                          desc->params.internal.param0,
1566                          desc->params.internal.param1,
1567                          desc->params.internal.param2,
1568                          desc->params.internal.param3);
1569                 kfree(desc);
1570                 desc = NULL;
1571         } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1572                 struct i40e_aq_desc *desc;
1573                 i40e_status ret;
1574                 u16 buffer_len;
1575                 u8 *buff;
1576
1577                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1578                 if (!desc)
1579                         goto command_write_done;
1580                 cnt = sscanf(&cmd_buf[20],
1581                              "%hx %hx %hx %hx %x %x %x %x %x %x %hd",
1582                              &desc->flags,
1583                              &desc->opcode, &desc->datalen, &desc->retval,
1584                              &desc->cookie_high, &desc->cookie_low,
1585                              &desc->params.internal.param0,
1586                              &desc->params.internal.param1,
1587                              &desc->params.internal.param2,
1588                              &desc->params.internal.param3,
1589                              &buffer_len);
1590                 if (cnt != 11) {
1591                         dev_info(&pf->pdev->dev,
1592                                  "send indirect aq_cmd: bad command string, cnt=%d\n",
1593                                  cnt);
1594                         kfree(desc);
1595                         desc = NULL;
1596                         goto command_write_done;
1597                 }
1598                 /* Just stub a buffer big enough in case user messed up */
1599                 if (buffer_len == 0)
1600                         buffer_len = 1280;
1601
1602                 buff = kzalloc(buffer_len, GFP_KERNEL);
1603                 if (!buff) {
1604                         kfree(desc);
1605                         desc = NULL;
1606                         goto command_write_done;
1607                 }
1608                 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1609                 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1610                                             buffer_len, NULL);
1611                 if (!ret) {
1612                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1613                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1614                         dev_info(&pf->pdev->dev,
1615                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1616                                  desc->opcode, pf->hw.aq.asq_last_status);
1617                 } else {
1618                         dev_info(&pf->pdev->dev,
1619                                  "AQ command send failed Opcode %x Status: %d\n",
1620                                  desc->opcode, ret);
1621                 }
1622                 dev_info(&pf->pdev->dev,
1623                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1624                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1625                          desc->cookie_high, desc->cookie_low,
1626                          desc->params.internal.param0,
1627                          desc->params.internal.param1,
1628                          desc->params.internal.param2,
1629                          desc->params.internal.param3);
1630                 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1631                                DUMP_PREFIX_OFFSET, 16, 1,
1632                                buff, buffer_len, true);
1633                 kfree(buff);
1634                 buff = NULL;
1635                 kfree(desc);
1636                 desc = NULL;
1637         } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1638                    (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
1639                 struct i40e_fdir_data fd_data;
1640                 u16 packet_len, i, j = 0;
1641                 char *asc_packet;
1642                 bool add = false;
1643                 int ret;
1644
1645                 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP,
1646                                      GFP_KERNEL);
1647                 if (!asc_packet)
1648                         goto command_write_done;
1649
1650                 fd_data.raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP,
1651                                              GFP_KERNEL);
1652
1653                 if (!fd_data.raw_packet) {
1654                         kfree(asc_packet);
1655                         asc_packet = NULL;
1656                         goto command_write_done;
1657                 }
1658
1659                 if (strncmp(cmd_buf, "add", 3) == 0)
1660                         add = true;
1661                 cnt = sscanf(&cmd_buf[13],
1662                              "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s",
1663                              &fd_data.q_index,
1664                              &fd_data.flex_off, &fd_data.pctype,
1665                              &fd_data.dest_vsi, &fd_data.dest_ctl,
1666                              &fd_data.fd_status, &fd_data.cnt_index,
1667                              &fd_data.fd_id, &packet_len, asc_packet);
1668                 if (cnt != 10) {
1669                         dev_info(&pf->pdev->dev,
1670                                  "program fd_filter: bad command string, cnt=%d\n",
1671                                  cnt);
1672                         kfree(asc_packet);
1673                         asc_packet = NULL;
1674                         kfree(fd_data.raw_packet);
1675                         goto command_write_done;
1676                 }
1677
1678                 /* fix packet length if user entered 0 */
1679                 if (packet_len == 0)
1680                         packet_len = I40E_FDIR_MAX_RAW_PACKET_LOOKUP;
1681
1682                 /* make sure to check the max as well */
1683                 packet_len = min_t(u16,
1684                                    packet_len, I40E_FDIR_MAX_RAW_PACKET_LOOKUP);
1685
1686                 for (i = 0; i < packet_len; i++) {
1687                         sscanf(&asc_packet[j], "%2hhx ",
1688                                &fd_data.raw_packet[i]);
1689                         j += 3;
1690                 }
1691                 dev_info(&pf->pdev->dev, "FD raw packet dump\n");
1692                 print_hex_dump(KERN_INFO, "FD raw packet: ",
1693                                DUMP_PREFIX_OFFSET, 16, 1,
1694                                fd_data.raw_packet, packet_len, true);
1695                 ret = i40e_program_fdir_filter(&fd_data, pf, add);
1696                 if (!ret) {
1697                         dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1698                 } else {
1699                         dev_info(&pf->pdev->dev,
1700                                  "Filter command send failed %d\n", ret);
1701                 }
1702                 kfree(fd_data.raw_packet);
1703                 fd_data.raw_packet = NULL;
1704                 kfree(asc_packet);
1705                 asc_packet = NULL;
1706         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1707                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1708                         int ret;
1709                         ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1710                         if (ret) {
1711                                 dev_info(&pf->pdev->dev,
1712                                          "Stop LLDP AQ command failed =0x%x\n",
1713                                          pf->hw.aq.asq_last_status);
1714                                 goto command_write_done;
1715                         }
1716                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1717                         int ret;
1718                         ret = i40e_aq_start_lldp(&pf->hw, NULL);
1719                         if (ret) {
1720                                 dev_info(&pf->pdev->dev,
1721                                          "Start LLDP AQ command failed =0x%x\n",
1722                                          pf->hw.aq.asq_last_status);
1723                                 goto command_write_done;
1724                         }
1725                 } else if (strncmp(&cmd_buf[5],
1726                            "get local", 9) == 0) {
1727                         u16 llen, rlen;
1728                         int ret;
1729                         u8 *buff;
1730                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1731                         if (!buff)
1732                                 goto command_write_done;
1733
1734                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1735                                                    I40E_AQ_LLDP_MIB_LOCAL,
1736                                                    buff, I40E_LLDPDU_SIZE,
1737                                                    &llen, &rlen, NULL);
1738                         if (ret) {
1739                                 dev_info(&pf->pdev->dev,
1740                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1741                                          pf->hw.aq.asq_last_status);
1742                                 kfree(buff);
1743                                 buff = NULL;
1744                                 goto command_write_done;
1745                         }
1746                         dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1747                         print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1748                                        DUMP_PREFIX_OFFSET, 16, 1,
1749                                        buff, I40E_LLDPDU_SIZE, true);
1750                         kfree(buff);
1751                         buff = NULL;
1752                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1753                         u16 llen, rlen;
1754                         int ret;
1755                         u8 *buff;
1756                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1757                         if (!buff)
1758                                 goto command_write_done;
1759
1760                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1761                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1762                                         I40E_AQ_LLDP_MIB_LOCAL,
1763                                         buff, I40E_LLDPDU_SIZE,
1764                                         &llen, &rlen, NULL);
1765                         if (ret) {
1766                                 dev_info(&pf->pdev->dev,
1767                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1768                                          pf->hw.aq.asq_last_status);
1769                                 kfree(buff);
1770                                 buff = NULL;
1771                                 goto command_write_done;
1772                         }
1773                         dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1774                         print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1775                                        DUMP_PREFIX_OFFSET, 16, 1,
1776                                        buff, I40E_LLDPDU_SIZE, true);
1777                         kfree(buff);
1778                         buff = NULL;
1779                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1780                         int ret;
1781                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1782                                                                 true, NULL);
1783                         if (ret) {
1784                                 dev_info(&pf->pdev->dev,
1785                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1786                                          pf->hw.aq.asq_last_status);
1787                                 goto command_write_done;
1788                         }
1789                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1790                         int ret;
1791                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1792                                                                 false, NULL);
1793                         if (ret) {
1794                                 dev_info(&pf->pdev->dev,
1795                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1796                                          pf->hw.aq.asq_last_status);
1797                                 goto command_write_done;
1798                         }
1799                 }
1800         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1801                 u16 buffer_len, bytes;
1802                 u16 module;
1803                 u32 offset;
1804                 u16 *buff;
1805                 int ret;
1806
1807                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1808                              &module, &offset, &buffer_len);
1809                 if (cnt == 0) {
1810                         module = 0;
1811                         offset = 0;
1812                         buffer_len = 0;
1813                 } else if (cnt == 1) {
1814                         offset = 0;
1815                         buffer_len = 0;
1816                 } else if (cnt == 2) {
1817                         buffer_len = 0;
1818                 } else if (cnt > 3) {
1819                         dev_info(&pf->pdev->dev,
1820                                  "nvm read: bad command string, cnt=%d\n", cnt);
1821                         goto command_write_done;
1822                 }
1823
1824                 /* set the max length */
1825                 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1826
1827                 bytes = 2 * buffer_len;
1828
1829                 /* read at least 1k bytes, no more than 4kB */
1830                 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1831                 buff = kzalloc(bytes, GFP_KERNEL);
1832                 if (!buff)
1833                         goto command_write_done;
1834
1835                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1836                 if (ret) {
1837                         dev_info(&pf->pdev->dev,
1838                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1839                                  ret, pf->hw.aq.asq_last_status);
1840                         kfree(buff);
1841                         goto command_write_done;
1842                 }
1843
1844                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1845                                        bytes, (u8 *)buff, true, NULL);
1846                 i40e_release_nvm(&pf->hw);
1847                 if (ret) {
1848                         dev_info(&pf->pdev->dev,
1849                                  "Read NVM AQ failed err=%d status=0x%x\n",
1850                                  ret, pf->hw.aq.asq_last_status);
1851                 } else {
1852                         dev_info(&pf->pdev->dev,
1853                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1854                                  module, offset, buffer_len);
1855                         if (bytes)
1856                                 print_hex_dump(KERN_INFO, "NVM Dump: ",
1857                                         DUMP_PREFIX_OFFSET, 16, 2,
1858                                         buff, bytes, true);
1859                 }
1860                 kfree(buff);
1861                 buff = NULL;
1862         } else {
1863                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1864                 dev_info(&pf->pdev->dev, "available commands\n");
1865                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1866                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1867                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1868                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1869                 dev_info(&pf->pdev->dev, "  add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1870                 dev_info(&pf->pdev->dev, "  del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1871                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1872                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1873                 dev_info(&pf->pdev->dev, "  dump switch\n");
1874                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1875                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1876                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1877                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1878                 dev_info(&pf->pdev->dev, "  dump stats\n");
1879                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1880                 dev_info(&pf->pdev->dev, "  msg_enable [level]\n");
1881                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1882                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1883                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1884                 dev_info(&pf->pdev->dev, "  clear_stats pf\n");
1885                 dev_info(&pf->pdev->dev, "  pfr\n");
1886                 dev_info(&pf->pdev->dev, "  corer\n");
1887                 dev_info(&pf->pdev->dev, "  globr\n");
1888                 dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1889                 dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1890                 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");
1891                 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");
1892                 dev_info(&pf->pdev->dev, "  lldp start\n");
1893                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1894                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1895                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1896                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1897                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1898                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1899         }
1900
1901 command_write_done:
1902         kfree(cmd_buf);
1903         cmd_buf = NULL;
1904         return count;
1905 }
1906
1907 static const struct file_operations i40e_dbg_command_fops = {
1908         .owner = THIS_MODULE,
1909         .open =  simple_open,
1910         .read =  i40e_dbg_command_read,
1911         .write = i40e_dbg_command_write,
1912 };
1913
1914 /**************************************************************
1915  * netdev_ops
1916  * The netdev_ops entry in debugfs is for giving the driver commands
1917  * to be executed from the netdev operations.
1918  **************************************************************/
1919 static char i40e_dbg_netdev_ops_buf[256] = "hello world";
1920
1921 /**
1922  * i40e_dbg_netdev_ops - read for netdev_ops datum
1923  * @filp: the opened file
1924  * @buffer: where to write the data for the user to read
1925  * @count: the size of the user's buffer
1926  * @ppos: file position offset
1927  **/
1928 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1929                                         size_t count, loff_t *ppos)
1930 {
1931         struct i40e_pf *pf = filp->private_data;
1932         int bytes_not_copied;
1933         int buf_size = 256;
1934         char *buf;
1935         int len;
1936
1937         /* don't allow partal reads */
1938         if (*ppos != 0)
1939                 return 0;
1940         if (count < buf_size)
1941                 return -ENOSPC;
1942
1943         buf = kzalloc(buf_size, GFP_KERNEL);
1944         if (!buf)
1945                 return -ENOSPC;
1946
1947         len = snprintf(buf, buf_size, "%s: %s\n",
1948                        pf->vsi[pf->lan_vsi]->netdev->name,
1949                        i40e_dbg_netdev_ops_buf);
1950
1951         bytes_not_copied = copy_to_user(buffer, buf, len);
1952         kfree(buf);
1953
1954         if (bytes_not_copied < 0)
1955                 return bytes_not_copied;
1956
1957         *ppos = len;
1958         return len;
1959 }
1960
1961 /**
1962  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1963  * @filp: the opened file
1964  * @buffer: where to find the user's data
1965  * @count: the length of the user's data
1966  * @ppos: file position offset
1967  **/
1968 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1969                                          const char __user *buffer,
1970                                          size_t count, loff_t *ppos)
1971 {
1972         struct i40e_pf *pf = filp->private_data;
1973         int bytes_not_copied;
1974         struct i40e_vsi *vsi;
1975         char *buf_tmp;
1976         int vsi_seid;
1977         int i, cnt;
1978
1979         /* don't allow partial writes */
1980         if (*ppos != 0)
1981                 return 0;
1982         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1983                 return -ENOSPC;
1984
1985         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1986         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1987                                           buffer, count);
1988         if (bytes_not_copied < 0)
1989                 return bytes_not_copied;
1990         else if (bytes_not_copied > 0)
1991                 count -= bytes_not_copied;
1992         i40e_dbg_netdev_ops_buf[count] = '\0';
1993
1994         buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
1995         if (buf_tmp) {
1996                 *buf_tmp = '\0';
1997                 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
1998         }
1999
2000         if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
2001                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2002                 if (cnt != 1) {
2003                         dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
2004                         goto netdev_ops_write_done;
2005                 }
2006                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2007                 if (!vsi) {
2008                         dev_info(&pf->pdev->dev,
2009                                  "tx_timeout: VSI %d not found\n", vsi_seid);
2010                         goto netdev_ops_write_done;
2011                 }
2012                 if (rtnl_trylock()) {
2013                         vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
2014                         rtnl_unlock();
2015                         dev_info(&pf->pdev->dev, "tx_timeout called\n");
2016                 } else {
2017                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2018                 }
2019         } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
2020                 int mtu;
2021                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
2022                              &vsi_seid, &mtu);
2023                 if (cnt != 2) {
2024                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
2025                         goto netdev_ops_write_done;
2026                 }
2027                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2028                 if (!vsi) {
2029                         dev_info(&pf->pdev->dev,
2030                                  "change_mtu: VSI %d not found\n", vsi_seid);
2031                         goto netdev_ops_write_done;
2032                 }
2033                 if (rtnl_trylock()) {
2034                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
2035                                                                 mtu);
2036                         rtnl_unlock();
2037                         dev_info(&pf->pdev->dev, "change_mtu called\n");
2038                 } else {
2039                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2040                 }
2041
2042         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
2043                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2044                 if (cnt != 1) {
2045                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
2046                         goto netdev_ops_write_done;
2047                 }
2048                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2049                 if (!vsi) {
2050                         dev_info(&pf->pdev->dev,
2051                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
2052                         goto netdev_ops_write_done;
2053                 }
2054                 if (rtnl_trylock()) {
2055                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
2056                         rtnl_unlock();
2057                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
2058                 } else {
2059                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2060                 }
2061
2062         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
2063                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
2064                 if (cnt != 1) {
2065                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
2066                         goto netdev_ops_write_done;
2067                 }
2068                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2069                 if (!vsi) {
2070                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
2071                                  vsi_seid);
2072                         goto netdev_ops_write_done;
2073                 }
2074                 for (i = 0; i < vsi->num_q_vectors; i++)
2075                         napi_schedule(&vsi->q_vectors[i]->napi);
2076                 dev_info(&pf->pdev->dev, "napi called\n");
2077         } else {
2078                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
2079                          i40e_dbg_netdev_ops_buf);
2080                 dev_info(&pf->pdev->dev, "available commands\n");
2081                 dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
2082                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
2083                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
2084                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
2085         }
2086 netdev_ops_write_done:
2087         return count;
2088 }
2089
2090 static const struct file_operations i40e_dbg_netdev_ops_fops = {
2091         .owner = THIS_MODULE,
2092         .open = simple_open,
2093         .read = i40e_dbg_netdev_ops_read,
2094         .write = i40e_dbg_netdev_ops_write,
2095 };
2096
2097 /**
2098  * i40e_dbg_pf_init - setup the debugfs directory for the pf
2099  * @pf: the pf that is starting up
2100  **/
2101 void i40e_dbg_pf_init(struct i40e_pf *pf)
2102 {
2103         struct dentry *pfile;
2104         const char *name = pci_name(pf->pdev);
2105         const struct device *dev = &pf->pdev->dev;
2106
2107         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
2108         if (!pf->i40e_dbg_pf)
2109                 return;
2110
2111         pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
2112                                     &i40e_dbg_command_fops);
2113         if (!pfile)
2114                 goto create_failed;
2115
2116         pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2117                                     &i40e_dbg_dump_fops);
2118         if (!pfile)
2119                 goto create_failed;
2120
2121         pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
2122                                     &i40e_dbg_netdev_ops_fops);
2123         if (!pfile)
2124                 goto create_failed;
2125
2126         return;
2127
2128 create_failed:
2129         dev_info(dev, "debugfs dir/file for %s failed\n", name);
2130         debugfs_remove_recursive(pf->i40e_dbg_pf);
2131         return;
2132 }
2133
2134 /**
2135  * i40e_dbg_pf_exit - clear out the pf's debugfs entries
2136  * @pf: the pf that is stopping
2137  **/
2138 void i40e_dbg_pf_exit(struct i40e_pf *pf)
2139 {
2140         debugfs_remove_recursive(pf->i40e_dbg_pf);
2141         pf->i40e_dbg_pf = NULL;
2142
2143         kfree(i40e_dbg_dump_buf);
2144         i40e_dbg_dump_buf = NULL;
2145 }
2146
2147 /**
2148  * i40e_dbg_init - start up debugfs for the driver
2149  **/
2150 void i40e_dbg_init(void)
2151 {
2152         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2153         if (!i40e_dbg_root)
2154                 pr_info("init of debugfs failed\n");
2155 }
2156
2157 /**
2158  * i40e_dbg_exit - clean out the driver's debugfs entries
2159  **/
2160 void i40e_dbg_exit(void)
2161 {
2162         debugfs_remove_recursive(i40e_dbg_root);
2163         i40e_dbg_root = NULL;
2164 }
2165
2166 #endif /* CONFIG_DEBUG_FS */