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

   1 /*******************************************************************************
   2  *
   3  * Intel Ethernet Controller XL710 Family Linux Driver
   4  * Copyright(c) 2013 - 2014 Intel Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * The full GNU General Public License is included in this distribution in
  19  * the file called "COPYING".
  20  *
  21  * Contact Information:
  22  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  ******************************************************************************/
  26
  27 #ifdef CONFIG_DEBUG_FS
  28
  29 #include <linux/fs.h>
  30 #include <linux/debugfs.h>
  31
  32 #include "i40e.h"
  33
  34 static struct dentry *i40e_dbg_root;
  35
  36 /**
  37  * i40e_dbg_find_vsi - searches for the vsi with the given seid
  38  * @pf - the pf structure to search for the vsi
  39  * @seid - seid of the vsi it is searching for
  40  **/
  41 static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
  42 {
  43         int i;
  44
  45         if (seid < 0)
  46                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
  47         else
  48                 for (i = 0; i < pf->num_alloc_vsi; i++)
  49                         if (pf->vsi[i] && (pf->vsi[i]->seid == seid))
  50                                 return pf->vsi[i];
  51
  52         return NULL;
  53 }
  54
  55 /**
  56  * i40e_dbg_find_veb - searches for the veb with the given seid
  57  * @pf - the pf structure to search for the veb
  58  * @seid - seid of the veb it is searching for
  59  **/
  60 static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
  61 {
  62         int i;
  63
  64         if ((seid < I40E_BASE_VEB_SEID) ||
  65             (seid > (I40E_BASE_VEB_SEID + I40E_MAX_VEB)))
  66                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
  67         else
  68                 for (i = 0; i < I40E_MAX_VEB; i++)
  69                         if (pf->veb[i] && pf->veb[i]->seid == seid)
  70                                 return pf->veb[i];
  71         return NULL;
  72 }
  73
  74 /**************************************************************
  75  * dump
  76  * The dump entry in debugfs is for getting a data snapshow of
  77  * the driver's current configuration and runtime details.
  78  * When the filesystem entry is written, a snapshot is taken.
  79  * When the entry is read, the most recent snapshot data is dumped.
  80  **************************************************************/
  81 static char *i40e_dbg_dump_buf;
  82 static ssize_t i40e_dbg_dump_data_len;
  83 static ssize_t i40e_dbg_dump_buffer_len;
  84
  85 /**
  86  * i40e_dbg_dump_read - read the dump data
  87  * @filp: the opened file
  88  * @buffer: where to write the data for the user to read
  89  * @count: the size of the user's buffer
  90  * @ppos: file position offset
  91  **/
  92 static ssize_t i40e_dbg_dump_read(struct file *filp, char __user *buffer,
  93                                   size_t count, loff_t *ppos)
  94 {
  95         int bytes_not_copied;
  96         int len;
  97
  98         /* is *ppos bigger than the available data? */
  99         if (*ppos >= i40e_dbg_dump_data_len || !i40e_dbg_dump_buf)
 100                 return 0;
 101
 102         /* be sure to not read beyond the end of available data */
 103         len = min_t(int, count, (i40e_dbg_dump_data_len - *ppos));
 104
 105         bytes_not_copied = copy_to_user(buffer, &i40e_dbg_dump_buf[*ppos], len);
 106         if (bytes_not_copied < 0)
 107                 return bytes_not_copied;
 108
 109         *ppos += len;
 110         return len;
 111 }
 112
 113 /**
 114  * i40e_dbg_prep_dump_buf
 115  * @pf: the pf we're working with
 116  * @buflen: the desired buffer length
 117  *
 118  * Return positive if success, 0 if failed
 119  **/
 120 static int i40e_dbg_prep_dump_buf(struct i40e_pf *pf, int buflen)
 121 {
 122         /* if not already big enough, prep for re alloc */
 123         if (i40e_dbg_dump_buffer_len && i40e_dbg_dump_buffer_len < buflen) {
 124                 kfree(i40e_dbg_dump_buf);
 125                 i40e_dbg_dump_buffer_len = 0;
 126                 i40e_dbg_dump_buf = NULL;
 127         }
 128
 129         /* get a new buffer if needed */
 130         if (!i40e_dbg_dump_buf) {
 131                 i40e_dbg_dump_buf = kzalloc(buflen, GFP_KERNEL);
 132                 if (i40e_dbg_dump_buf != NULL)
 133                         i40e_dbg_dump_buffer_len = buflen;
 134         }
 135
 136         return i40e_dbg_dump_buffer_len;
 137 }
 138
 139 /**
 140  * i40e_dbg_dump_write - trigger a datadump snapshot
 141  * @filp: the opened file
 142  * @buffer: where to find the user's data
 143  * @count: the length of the user's data
 144  * @ppos: file position offset
 145  *
 146  * Any write clears the stats
 147  **/
 148 static ssize_t i40e_dbg_dump_write(struct file *filp,
 149                                    const char __user *buffer,
 150                                    size_t count, loff_t *ppos)
 151 {
 152         struct i40e_pf *pf = filp->private_data;
 153         bool seid_found = false;
 154         long seid = -1;
 155         int buflen = 0;
 156         int i, ret;
 157         int len;
 158         u8 *p;
 159
 160         /* don't allow partial writes */
 161         if (*ppos != 0)
 162                 return 0;
 163
 164         /* decode the SEID given to be dumped */
 165         ret = kstrtol_from_user(buffer, count, 0, &seid);
 166
 167         if (ret) {
 168                 dev_info(&pf->pdev->dev, "bad seid value\n");
 169         } else if (seid == 0) {
 170                 seid_found = true;
 171
 172                 kfree(i40e_dbg_dump_buf);
 173                 i40e_dbg_dump_buffer_len = 0;
 174                 i40e_dbg_dump_data_len = 0;
 175                 i40e_dbg_dump_buf = NULL;
 176                 dev_info(&pf->pdev->dev, "debug buffer freed\n");
 177
 178         } else if (seid == pf->pf_seid || seid == 1) {
 179                 seid_found = true;
 180
 181                 buflen = sizeof(struct i40e_pf);
 182                 buflen += (sizeof(struct i40e_aq_desc)
 183                      * (pf->hw.aq.num_arq_entries + pf->hw.aq.num_asq_entries));
 184
 185                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 186                         p = i40e_dbg_dump_buf;
 187
 188                         len = sizeof(struct i40e_pf);
 189                         memcpy(p, pf, len);
 190                         p += len;
 191
 192                         len = (sizeof(struct i40e_aq_desc)
 193                                         * pf->hw.aq.num_asq_entries);
 194                         memcpy(p, pf->hw.aq.asq.desc_buf.va, len);
 195                         p += len;
 196
 197                         len = (sizeof(struct i40e_aq_desc)
 198                                         * pf->hw.aq.num_arq_entries);
 199                         memcpy(p, pf->hw.aq.arq.desc_buf.va, len);
 200                         p += len;
 201
 202                         i40e_dbg_dump_data_len = buflen;
 203                         dev_info(&pf->pdev->dev,
 204                                  "PF seid %ld dumped %d bytes\n",
 205                                  seid, (int)i40e_dbg_dump_data_len);
 206                 }
 207         } else if (seid >= I40E_BASE_VSI_SEID) {
 208                 struct i40e_vsi *vsi = NULL;
 209                 struct i40e_mac_filter *f;
 210                 int filter_count = 0;
 211
 212                 mutex_lock(&pf->switch_mutex);
 213                 vsi = i40e_dbg_find_vsi(pf, seid);
 214                 if (!vsi) {
 215                         mutex_unlock(&pf->switch_mutex);
 216                         goto write_exit;
 217                 }
 218
 219                 buflen = sizeof(struct i40e_vsi);
 220                 buflen += sizeof(struct i40e_q_vector) * vsi->num_q_vectors;
 221                 buflen += sizeof(struct i40e_ring) * 2 * vsi->num_queue_pairs;
 222                 buflen += sizeof(struct i40e_tx_buffer) * vsi->num_queue_pairs;
 223                 buflen += sizeof(struct i40e_rx_buffer) * vsi->num_queue_pairs;
 224                 list_for_each_entry(f, &vsi->mac_filter_list, list)
 225                         filter_count++;
 226                 buflen += sizeof(struct i40e_mac_filter) * filter_count;
 227
 228                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 229                         p = i40e_dbg_dump_buf;
 230                         seid_found = true;
 231
 232                         len = sizeof(struct i40e_vsi);
 233                         memcpy(p, vsi, len);
 234                         p += len;
 235
 236                         if (vsi->num_q_vectors) {
 237                                 len = (sizeof(struct i40e_q_vector)
 238                                         * vsi->num_q_vectors);
 239                                 memcpy(p, vsi->q_vectors, len);
 240                                 p += len;
 241                         }
 242
 243                         if (vsi->num_queue_pairs) {
 244                                 len = (sizeof(struct i40e_ring) *
 245                                       vsi->num_queue_pairs);
 246                                 memcpy(p, vsi->tx_rings, len);
 247                                 p += len;
 248                                 memcpy(p, vsi->rx_rings, len);
 249                                 p += len;
 250                         }
 251
 252                         if (vsi->tx_rings[0]) {
 253                                 len = sizeof(struct i40e_tx_buffer);
 254                                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 255                                         memcpy(p, vsi->tx_rings[i]->tx_bi, len);
 256                                         p += len;
 257                                 }
 258                                 len = sizeof(struct i40e_rx_buffer);
 259                                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 260                                         memcpy(p, vsi->rx_rings[i]->rx_bi, len);
 261                                         p += len;
 262                                 }
 263                         }
 264
 265                         /* macvlan filter list */
 266                         len = sizeof(struct i40e_mac_filter);
 267                         list_for_each_entry(f, &vsi->mac_filter_list, list) {
 268                                 memcpy(p, f, len);
 269                                 p += len;
 270                         }
 271
 272                         i40e_dbg_dump_data_len = buflen;
 273                         dev_info(&pf->pdev->dev,
 274                                  "VSI seid %ld dumped %d bytes\n",
 275                                  seid, (int)i40e_dbg_dump_data_len);
 276                 }
 277                 mutex_unlock(&pf->switch_mutex);
 278         } else if (seid >= I40E_BASE_VEB_SEID) {
 279                 struct i40e_veb *veb = NULL;
 280
 281                 mutex_lock(&pf->switch_mutex);
 282                 veb = i40e_dbg_find_veb(pf, seid);
 283                 if (!veb) {
 284                         mutex_unlock(&pf->switch_mutex);
 285                         goto write_exit;
 286                 }
 287
 288                 buflen = sizeof(struct i40e_veb);
 289                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 290                         seid_found = true;
 291                         memcpy(i40e_dbg_dump_buf, veb, buflen);
 292                         i40e_dbg_dump_data_len = buflen;
 293                         dev_info(&pf->pdev->dev,
 294                                  "VEB seid %ld dumped %d bytes\n",
 295                                  seid, (int)i40e_dbg_dump_data_len);
 296                 }
 297                 mutex_unlock(&pf->switch_mutex);
 298         }
 299
 300 write_exit:
 301         if (!seid_found)
 302                 dev_info(&pf->pdev->dev, "unknown seid %ld\n", seid);
 303
 304         return count;
 305 }
 306
 307 static const struct file_operations i40e_dbg_dump_fops = {
 308         .owner = THIS_MODULE,
 309         .open =  simple_open,
 310         .read =  i40e_dbg_dump_read,
 311         .write = i40e_dbg_dump_write,
 312 };
 313
 314 /**************************************************************
 315  * command
 316  * The command entry in debugfs is for giving the driver commands
 317  * to be executed - these may be for changing the internal switch
 318  * setup, adding or removing filters, or other things.  Many of
 319  * these will be useful for some forms of unit testing.
 320  **************************************************************/
 321 static char i40e_dbg_command_buf[256] = "hello world";
 322
 323 /**
 324  * i40e_dbg_command_read - read for command datum
 325  * @filp: the opened file
 326  * @buffer: where to write the data for the user to read
 327  * @count: the size of the user's buffer
 328  * @ppos: file position offset
 329  **/
 330 static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
 331                                      size_t count, loff_t *ppos)
 332 {
 333         struct i40e_pf *pf = filp->private_data;
 334         int bytes_not_copied;
 335         int buf_size = 256;
 336         char *buf;
 337         int len;
 338
 339         /* don't allow partial reads */
 340         if (*ppos != 0)
 341                 return 0;
 342         if (count < buf_size)
 343                 return -ENOSPC;
 344
 345         buf = kzalloc(buf_size, GFP_KERNEL);
 346         if (!buf)
 347                 return -ENOSPC;
 348
 349         len = snprintf(buf, buf_size, "%s: %s\n",
 350                        pf->vsi[pf->lan_vsi]->netdev->name,
 351                        i40e_dbg_command_buf);
 352
 353         bytes_not_copied = copy_to_user(buffer, buf, len);
 354         kfree(buf);
 355
 356         if (bytes_not_copied < 0)
 357                 return bytes_not_copied;
 358
 359         *ppos = len;
 360         return len;
 361 }
 362
 363 /**
 364  * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
 365  * @pf: the i40e_pf created in command write
 366  * @seid: the seid the user put in
 367  **/
 368 static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 369 {
 370         struct rtnl_link_stats64 *nstat;
 371         struct i40e_mac_filter *f;
 372         struct i40e_vsi *vsi;
 373         int i;
 374
 375         vsi = i40e_dbg_find_vsi(pf, seid);
 376         if (!vsi) {
 377                 dev_info(&pf->pdev->dev,
 378                          "dump %d: seid not found\n", seid);
 379                 return;
 380         }
 381         dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
 382         if (vsi->netdev)
 383                 dev_info(&pf->pdev->dev,
 384                          "    netdev: name = %s\n",
 385                          vsi->netdev->name);
 386         if (vsi->active_vlans)
 387                 dev_info(&pf->pdev->dev,
 388                          "    vlgrp: & = %p\n", vsi->active_vlans);
 389         dev_info(&pf->pdev->dev,
 390                  "    netdev_registered = %i, current_netdev_flags = 0x%04x, state = %li flags = 0x%08lx\n",
 391                  vsi->netdev_registered,
 392                  vsi->current_netdev_flags, vsi->state, vsi->flags);
 393         list_for_each_entry(f, &vsi->mac_filter_list, list) {
 394                 dev_info(&pf->pdev->dev,
 395                          "    mac_filter_list: %pM vid=%d, is_netdev=%d is_vf=%d counter=%d\n",
 396                          f->macaddr, f->vlan, f->is_netdev, f->is_vf,
 397                          f->counter);
 398         }
 399         nstat = i40e_get_vsi_stats_struct(vsi);
 400         dev_info(&pf->pdev->dev,
 401                  "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 402                  (long unsigned int)nstat->rx_packets,
 403                  (long unsigned int)nstat->rx_bytes,
 404                  (long unsigned int)nstat->rx_errors,
 405                  (long unsigned int)nstat->rx_dropped);
 406         dev_info(&pf->pdev->dev,
 407                  "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 408                  (long unsigned int)nstat->tx_packets,
 409                  (long unsigned int)nstat->tx_bytes,
 410                  (long unsigned int)nstat->tx_errors,
 411                  (long unsigned int)nstat->tx_dropped);
 412         dev_info(&pf->pdev->dev,
 413                  "    net_stats: multicast = %lu, collisions = %lu\n",
 414                  (long unsigned int)nstat->multicast,
 415                  (long unsigned int)nstat->collisions);
 416         dev_info(&pf->pdev->dev,
 417                  "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 418                  (long unsigned int)nstat->rx_length_errors,
 419                  (long unsigned int)nstat->rx_over_errors,
 420                  (long unsigned int)nstat->rx_crc_errors);
 421         dev_info(&pf->pdev->dev,
 422                  "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 423                  (long unsigned int)nstat->rx_frame_errors,
 424                  (long unsigned int)nstat->rx_fifo_errors,
 425                  (long unsigned int)nstat->rx_missed_errors);
 426         dev_info(&pf->pdev->dev,
 427                  "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 428                  (long unsigned int)nstat->tx_aborted_errors,
 429                  (long unsigned int)nstat->tx_carrier_errors,
 430                  (long unsigned int)nstat->tx_fifo_errors);
 431         dev_info(&pf->pdev->dev,
 432                  "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 433                  (long unsigned int)nstat->tx_heartbeat_errors,
 434                  (long unsigned int)nstat->tx_window_errors);
 435         dev_info(&pf->pdev->dev,
 436                  "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
 437                  (long unsigned int)nstat->rx_compressed,
 438                  (long unsigned int)nstat->tx_compressed);
 439         dev_info(&pf->pdev->dev,
 440                  "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 441                  (long unsigned int)vsi->net_stats_offsets.rx_packets,
 442                  (long unsigned int)vsi->net_stats_offsets.rx_bytes,
 443                  (long unsigned int)vsi->net_stats_offsets.rx_errors,
 444                  (long unsigned int)vsi->net_stats_offsets.rx_dropped);
 445         dev_info(&pf->pdev->dev,
 446                  "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 447                  (long unsigned int)vsi->net_stats_offsets.tx_packets,
 448                  (long unsigned int)vsi->net_stats_offsets.tx_bytes,
 449                  (long unsigned int)vsi->net_stats_offsets.tx_errors,
 450                  (long unsigned int)vsi->net_stats_offsets.tx_dropped);
 451         dev_info(&pf->pdev->dev,
 452                  "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
 453                  (long unsigned int)vsi->net_stats_offsets.multicast,
 454                  (long unsigned int)vsi->net_stats_offsets.collisions);
 455         dev_info(&pf->pdev->dev,
 456                  "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 457                  (long unsigned int)vsi->net_stats_offsets.rx_length_errors,
 458                  (long unsigned int)vsi->net_stats_offsets.rx_over_errors,
 459                  (long unsigned int)vsi->net_stats_offsets.rx_crc_errors);
 460         dev_info(&pf->pdev->dev,
 461                  "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 462                  (long unsigned int)vsi->net_stats_offsets.rx_frame_errors,
 463                  (long unsigned int)vsi->net_stats_offsets.rx_fifo_errors,
 464                  (long unsigned int)vsi->net_stats_offsets.rx_missed_errors);
 465         dev_info(&pf->pdev->dev,
 466                  "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 467                  (long unsigned int)vsi->net_stats_offsets.tx_aborted_errors,
 468                  (long unsigned int)vsi->net_stats_offsets.tx_carrier_errors,
 469                  (long unsigned int)vsi->net_stats_offsets.tx_fifo_errors);
 470         dev_info(&pf->pdev->dev,
 471                  "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 472                  (long unsigned int)vsi->net_stats_offsets.tx_heartbeat_errors,
 473                  (long unsigned int)vsi->net_stats_offsets.tx_window_errors);
 474         dev_info(&pf->pdev->dev,
 475                  "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
 476                  (long unsigned int)vsi->net_stats_offsets.rx_compressed,
 477                  (long unsigned int)vsi->net_stats_offsets.tx_compressed);
 478         dev_info(&pf->pdev->dev,
 479                  "    tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n",
 480                  vsi->tx_restart, vsi->tx_busy,
 481                  vsi->rx_buf_failed, vsi->rx_page_failed);
 482         rcu_read_lock();
 483         for (i = 0; i < vsi->num_queue_pairs; i++) {
 484                 struct i40e_ring *rx_ring = ACCESS_ONCE(vsi->rx_rings[i]);
 485                 if (!rx_ring)
 486                         continue;
 487
 488                 dev_info(&pf->pdev->dev,
 489                          "    rx_rings[%i]: desc = %p\n",
 490                          i, rx_ring->desc);
 491                 dev_info(&pf->pdev->dev,
 492                          "    rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n",
 493                          i, rx_ring->dev,
 494                          rx_ring->netdev,
 495                          rx_ring->rx_bi);
 496                 dev_info(&pf->pdev->dev,
 497                          "    rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 498                          i, rx_ring->state,
 499                          rx_ring->queue_index,
 500                          rx_ring->reg_idx);
 501                 dev_info(&pf->pdev->dev,
 502                          "    rx_rings[%i]: rx_hdr_len = %d, rx_buf_len = %d, dtype = %d\n",
 503                          i, rx_ring->rx_hdr_len,
 504                          rx_ring->rx_buf_len,
 505                          rx_ring->dtype);
 506                 dev_info(&pf->pdev->dev,
 507                          "    rx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 508                          i, rx_ring->hsplit,
 509                          rx_ring->next_to_use,
 510                          rx_ring->next_to_clean,
 511                          rx_ring->ring_active);
 512                 dev_info(&pf->pdev->dev,
 513                          "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
 514                          i, rx_ring->stats.packets,
 515                          rx_ring->stats.bytes,
 516                          rx_ring->rx_stats.non_eop_descs);
 517                 dev_info(&pf->pdev->dev,
 518                          "    rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
 519                          i,
 520                          rx_ring->rx_stats.alloc_page_failed,
 521                          rx_ring->rx_stats.alloc_buff_failed);
 522                 dev_info(&pf->pdev->dev,
 523                          "    rx_rings[%i]: size = %i, dma = 0x%08lx\n",
 524                          i, rx_ring->size,
 525                          (long unsigned int)rx_ring->dma);
 526                 dev_info(&pf->pdev->dev,
 527                          "    rx_rings[%i]: vsi = %p, q_vector = %p\n",
 528                          i, rx_ring->vsi,
 529                          rx_ring->q_vector);
 530         }
 531         for (i = 0; i < vsi->num_queue_pairs; i++) {
 532                 struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
 533                 if (!tx_ring)
 534                         continue;
 535
 536                 dev_info(&pf->pdev->dev,
 537                          "    tx_rings[%i]: desc = %p\n",
 538                          i, tx_ring->desc);
 539                 dev_info(&pf->pdev->dev,
 540                          "    tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n",
 541                          i, tx_ring->dev,
 542                          tx_ring->netdev,
 543                          tx_ring->tx_bi);
 544                 dev_info(&pf->pdev->dev,
 545                          "    tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 546                          i, tx_ring->state,
 547                          tx_ring->queue_index,
 548                          tx_ring->reg_idx);
 549                 dev_info(&pf->pdev->dev,
 550                          "    tx_rings[%i]: dtype = %d\n",
 551                          i, tx_ring->dtype);
 552                 dev_info(&pf->pdev->dev,
 553                          "    tx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 554                          i, tx_ring->hsplit,
 555                          tx_ring->next_to_use,
 556                          tx_ring->next_to_clean,
 557                          tx_ring->ring_active);
 558                 dev_info(&pf->pdev->dev,
 559                          "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 560                          i, tx_ring->stats.packets,
 561                          tx_ring->stats.bytes,
 562                          tx_ring->tx_stats.restart_queue);
 563                 dev_info(&pf->pdev->dev,
 564                          "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
 565                          i,
 566                          tx_ring->tx_stats.tx_busy,
 567                          tx_ring->tx_stats.tx_done_old);
 568                 dev_info(&pf->pdev->dev,
 569                          "    tx_rings[%i]: size = %i, dma = 0x%08lx\n",
 570                          i, tx_ring->size,
 571                          (long unsigned int)tx_ring->dma);
 572                 dev_info(&pf->pdev->dev,
 573                          "    tx_rings[%i]: vsi = %p, q_vector = %p\n",
 574                          i, tx_ring->vsi,
 575                          tx_ring->q_vector);
 576                 dev_info(&pf->pdev->dev,
 577                          "    tx_rings[%i]: DCB tc = %d\n",
 578                          i, tx_ring->dcb_tc);
 579         }
 580         rcu_read_unlock();
 581         dev_info(&pf->pdev->dev,
 582                  "    work_limit = %d, rx_itr_setting = %d (%s), tx_itr_setting = %d (%s)\n",
 583                  vsi->work_limit, vsi->rx_itr_setting,
 584                  ITR_IS_DYNAMIC(vsi->rx_itr_setting) ? "dynamic" : "fixed",
 585                  vsi->tx_itr_setting,
 586                  ITR_IS_DYNAMIC(vsi->tx_itr_setting) ? "dynamic" : "fixed");
 587         dev_info(&pf->pdev->dev,
 588                  "    max_frame = %d, rx_hdr_len = %d, rx_buf_len = %d dtype = %d\n",
 589                  vsi->max_frame, vsi->rx_hdr_len, vsi->rx_buf_len, vsi->dtype);
 590         dev_info(&pf->pdev->dev,
 591                  "    num_q_vectors = %i, base_vector = %i\n",
 592                  vsi->num_q_vectors, vsi->base_vector);
 593         dev_info(&pf->pdev->dev,
 594                  "    seid = %d, id = %d, uplink_seid = %d\n",
 595                  vsi->seid, vsi->id, vsi->uplink_seid);
 596         dev_info(&pf->pdev->dev,
 597                  "    base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
 598                  vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
 599         dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 600         dev_info(&pf->pdev->dev,
 601                  "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 602                  vsi->info.valid_sections, vsi->info.switch_id);
 603         dev_info(&pf->pdev->dev,
 604                  "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 605                  vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 606         dev_info(&pf->pdev->dev,
 607                  "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 608                  vsi->info.sec_flags, vsi->info.sec_reserved);
 609         dev_info(&pf->pdev->dev,
 610                  "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 611                  vsi->info.pvid, vsi->info.fcoe_pvid,
 612                  vsi->info.port_vlan_flags);
 613         dev_info(&pf->pdev->dev,
 614                  "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 615                  vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 616                  vsi->info.pvlan_reserved[2]);
 617         dev_info(&pf->pdev->dev,
 618                  "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 619                  vsi->info.ingress_table, vsi->info.egress_table);
 620         dev_info(&pf->pdev->dev,
 621                  "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 622                  vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 623                  vsi->info.cas_pv_reserved);
 624         dev_info(&pf->pdev->dev,
 625                  "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 626                  vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 627                  vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 628                  vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 629                  vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 630         dev_info(&pf->pdev->dev,
 631                  "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 632                  vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 633                  vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 634                  vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 635                  vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 636         dev_info(&pf->pdev->dev,
 637                  "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 638                  vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 639                  vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 640                  vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 641                  vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 642         dev_info(&pf->pdev->dev,
 643                  "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 644                  vsi->info.queueing_opt_flags,
 645                  vsi->info.queueing_opt_reserved[0],
 646                  vsi->info.queueing_opt_reserved[1],
 647                  vsi->info.queueing_opt_reserved[2]);
 648         dev_info(&pf->pdev->dev,
 649                  "    info: up_enable_bits = 0x%02x\n",
 650                  vsi->info.up_enable_bits);
 651         dev_info(&pf->pdev->dev,
 652                  "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 653                  vsi->info.sched_reserved, vsi->info.outer_up_table);
 654         dev_info(&pf->pdev->dev,
 655                  "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 656                  vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 657                  vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 658                  vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 659                  vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 660         dev_info(&pf->pdev->dev,
 661                  "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 662                  vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 663                  vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 664                  vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 665                  vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 666         dev_info(&pf->pdev->dev,
 667                  "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 668                  vsi->info.stat_counter_idx, vsi->info.sched_id);
 669         dev_info(&pf->pdev->dev,
 670                  "    info: resp_reserved[] = 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n",
 671                  vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 672                  vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 673                  vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 674                  vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 675                  vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 676                  vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 677         if (vsi->back)
 678                 dev_info(&pf->pdev->dev, "    pf = %p\n", vsi->back);
 679         dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 680         dev_info(&pf->pdev->dev,
 681                  "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 682                  vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 683         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 684                 dev_info(&pf->pdev->dev,
 685                          "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 686                          i, vsi->tc_config.tc_info[i].qoffset,
 687                          vsi->tc_config.tc_info[i].qcount,
 688                          vsi->tc_config.tc_info[i].netdev_tc);
 689         }
 690         dev_info(&pf->pdev->dev,
 691                  "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 692                  vsi->bw_limit, vsi->bw_max_quanta);
 693         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 694                 dev_info(&pf->pdev->dev,
 695                          "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 696                          i, vsi->bw_ets_share_credits[i],
 697                          vsi->bw_ets_limit_credits[i],
 698                          vsi->bw_ets_max_quanta[i]);
 699         }
 700 #ifdef I40E_FCOE
 701         if (vsi->type == I40E_VSI_FCOE) {
 702                 dev_info(&pf->pdev->dev,
 703                          "    fcoe_stats: rx_packets = %llu, rx_dwords = %llu, rx_dropped = %llu\n",
 704                          vsi->fcoe_stats.rx_fcoe_packets,
 705                          vsi->fcoe_stats.rx_fcoe_dwords,
 706                          vsi->fcoe_stats.rx_fcoe_dropped);
 707                 dev_info(&pf->pdev->dev,
 708                          "    fcoe_stats: tx_packets = %llu, tx_dwords = %llu\n",
 709                          vsi->fcoe_stats.tx_fcoe_packets,
 710                          vsi->fcoe_stats.tx_fcoe_dwords);
 711                 dev_info(&pf->pdev->dev,
 712                          "    fcoe_stats: bad_crc = %llu, last_error = %llu\n",
 713                          vsi->fcoe_stats.fcoe_bad_fccrc,
 714                          vsi->fcoe_stats.fcoe_last_error);
 715                 dev_info(&pf->pdev->dev, "    fcoe_stats: ddp_count = %llu\n",
 716                          vsi->fcoe_stats.fcoe_ddp_count);
 717         }
 718 #endif
 719 }
 720
 721 /**
 722  * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 723  * @pf: the i40e_pf created in command write
 724  **/
 725 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 726 {
 727         struct i40e_adminq_ring *ring;
 728         struct i40e_hw *hw = &pf->hw;
 729         char hdr[32];
 730         int i;
 731
 732         snprintf(hdr, sizeof(hdr), "%s %s:         ",
 733                  dev_driver_string(&pf->pdev->dev),
 734                  dev_name(&pf->pdev->dev));
 735
 736         /* first the send (command) ring, then the receive (event) ring */
 737         dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 738         ring = &(hw->aq.asq);
 739         for (i = 0; i < ring->count; i++) {
 740                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 741                 dev_info(&pf->pdev->dev,
 742                          "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 743                          i, d->flags, d->opcode, d->datalen, d->retval,
 744                          d->cookie_high, d->cookie_low);
 745                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 746                                16, 1, d->params.raw, 16, 0);
 747         }
 748
 749         dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 750         ring = &(hw->aq.arq);
 751         for (i = 0; i < ring->count; i++) {
 752                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 753                 dev_info(&pf->pdev->dev,
 754                          "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 755                          i, d->flags, d->opcode, d->datalen, d->retval,
 756                          d->cookie_high, d->cookie_low);
 757                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 758                                16, 1, d->params.raw, 16, 0);
 759         }
 760 }
 761
 762 /**
 763  * i40e_dbg_dump_desc - handles dump desc write into command datum
 764  * @cnt: number of arguments that the user supplied
 765  * @vsi_seid: vsi id entered by user
 766  * @ring_id: ring id entered by user
 767  * @desc_n: descriptor number entered by user
 768  * @pf: the i40e_pf created in command write
 769  * @is_rx_ring: true if rx, false if tx
 770  **/
 771 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 772                                struct i40e_pf *pf, bool is_rx_ring)
 773 {
 774         struct i40e_tx_desc *txd;
 775         union i40e_rx_desc *rxd;
 776         struct i40e_ring ring;
 777         struct i40e_vsi *vsi;
 778         int i;
 779
 780         vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 781         if (!vsi) {
 782                 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 783                 return;
 784         }
 785         if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 786                 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 787                 return;
 788         }
 789         if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
 790                 dev_info(&pf->pdev->dev,
 791                          "descriptor rings have not been allocated for vsi %d\n",
 792                          vsi_seid);
 793                 return;
 794         }
 795         if (is_rx_ring)
 796                 ring = *vsi->rx_rings[ring_id];
 797         else
 798                 ring = *vsi->tx_rings[ring_id];
 799         if (cnt == 2) {
 800                 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 801                          vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
 802                 for (i = 0; i < ring.count; i++) {
 803                         if (!is_rx_ring) {
 804                                 txd = I40E_TX_DESC(&ring, i);
 805                                 dev_info(&pf->pdev->dev,
 806                                          "   d[%03i] = 0x%016llx 0x%016llx\n",
 807                                          i, txd->buffer_addr,
 808                                          txd->cmd_type_offset_bsz);
 809                         } else if (sizeof(union i40e_rx_desc) ==
 810                                    sizeof(union i40e_16byte_rx_desc)) {
 811                                 rxd = I40E_RX_DESC(&ring, i);
 812                                 dev_info(&pf->pdev->dev,
 813                                          "   d[%03i] = 0x%016llx 0x%016llx\n",
 814                                          i, rxd->read.pkt_addr,
 815                                          rxd->read.hdr_addr);
 816                         } else {
 817                                 rxd = I40E_RX_DESC(&ring, i);
 818                                 dev_info(&pf->pdev->dev,
 819                                          "   d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 820                                          i, rxd->read.pkt_addr,
 821                                          rxd->read.hdr_addr,
 822                                          rxd->read.rsvd1, rxd->read.rsvd2);
 823                         }
 824                 }
 825         } else if (cnt == 3) {
 826                 if (desc_n >= ring.count || desc_n < 0) {
 827                         dev_info(&pf->pdev->dev,
 828                                  "descriptor %d not found\n", desc_n);
 829                         return;
 830                 }
 831                 if (!is_rx_ring) {
 832                         txd = I40E_TX_DESC(&ring, desc_n);
 833                         dev_info(&pf->pdev->dev,
 834                                  "vsi = %02i tx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
 835                                  vsi_seid, ring_id, desc_n,
 836                                  txd->buffer_addr, txd->cmd_type_offset_bsz);
 837                 } else if (sizeof(union i40e_rx_desc) ==
 838                            sizeof(union i40e_16byte_rx_desc)) {
 839                         rxd = I40E_RX_DESC(&ring, desc_n);
 840                         dev_info(&pf->pdev->dev,
 841                                  "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
 842                                  vsi_seid, ring_id, desc_n,
 843                                  rxd->read.pkt_addr, rxd->read.hdr_addr);
 844                 } else {
 845                         rxd = I40E_RX_DESC(&ring, desc_n);
 846                         dev_info(&pf->pdev->dev,
 847                                  "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 848                                  vsi_seid, ring_id, desc_n,
 849                                  rxd->read.pkt_addr, rxd->read.hdr_addr,
 850                                  rxd->read.rsvd1, rxd->read.rsvd2);
 851                 }
 852         } else {
 853                 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
 854         }
 855 }
 856
 857 /**
 858  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 859  * @pf: the i40e_pf created in command write
 860  **/
 861 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 862 {
 863         int i;
 864
 865         for (i = 0; i < pf->num_alloc_vsi; i++)
 866                 if (pf->vsi[i])
 867                         dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 868                                  i, pf->vsi[i]->seid);
 869 }
 870
 871 /**
 872  * i40e_dbg_dump_stats - handles dump stats write into command datum
 873  * @pf: the i40e_pf created in command write
 874  * @estats: the eth stats structure to be dumped
 875  **/
 876 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 877                                     struct i40e_eth_stats *estats)
 878 {
 879         dev_info(&pf->pdev->dev, "  ethstats:\n");
 880         dev_info(&pf->pdev->dev,
 881                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 882                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 883         dev_info(&pf->pdev->dev,
 884                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
 885                  estats->rx_broadcast, estats->rx_discards);
 886         dev_info(&pf->pdev->dev,
 887                  "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 888                  estats->rx_unknown_protocol, estats->tx_bytes);
 889         dev_info(&pf->pdev->dev,
 890                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 891                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 892         dev_info(&pf->pdev->dev,
 893                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 894                  estats->tx_discards, estats->tx_errors);
 895 }
 896
 897 /**
 898  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 899  * @pf: the i40e_pf created in command write
 900  * @seid: the seid the user put in
 901  **/
 902 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 903 {
 904         struct i40e_veb *veb;
 905
 906         if ((seid < I40E_BASE_VEB_SEID) ||
 907             (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
 908                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
 909                 return;
 910         }
 911
 912         veb = i40e_dbg_find_veb(pf, seid);
 913         if (!veb) {
 914                 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 915                 return;
 916         }
 917         dev_info(&pf->pdev->dev,
 918                  "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d\n",
 919                  veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 920                  veb->uplink_seid);
 921         i40e_dbg_dump_eth_stats(pf, &veb->stats);
 922 }
 923
 924 /**
 925  * i40e_dbg_dump_veb_all - dumps all known veb's stats
 926  * @pf: the i40e_pf created in command write
 927  **/
 928 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 929 {
 930         struct i40e_veb *veb;
 931         int i;
 932
 933         for (i = 0; i < I40E_MAX_VEB; i++) {
 934                 veb = pf->veb[i];
 935                 if (veb)
 936                         i40e_dbg_dump_veb_seid(pf, veb->seid);
 937         }
 938 }
 939
 940 /**
 941  * i40e_dbg_cmd_fd_ctrl - Enable/disable FD sideband/ATR
 942  * @pf: the pf that would be altered
 943  * @flag: flag that needs enabling or disabling
 944  * @enable: Enable/disable FD SD/ATR
 945  **/
 946 static void i40e_dbg_cmd_fd_ctrl(struct i40e_pf *pf, u64 flag, bool enable)
 947 {
 948         if (enable) {
 949                 pf->flags |= flag;
 950         } else {
 951                 pf->flags &= ~flag;
 952                 pf->auto_disable_flags |= flag;
 953         }
 954         dev_info(&pf->pdev->dev, "requesting a pf reset\n");
 955         i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
 956 }
 957
 958 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
 959 /**
 960  * i40e_dbg_command_write - write into command datum
 961  * @filp: the opened file
 962  * @buffer: where to find the user's data
 963  * @count: the length of the user's data
 964  * @ppos: file position offset
 965  **/
 966 static ssize_t i40e_dbg_command_write(struct file *filp,
 967                                       const char __user *buffer,
 968                                       size_t count, loff_t *ppos)
 969 {
 970         struct i40e_pf *pf = filp->private_data;
 971         char *cmd_buf, *cmd_buf_tmp;
 972         int bytes_not_copied;
 973         struct i40e_vsi *vsi;
 974         int vsi_seid;
 975         int veb_seid;
 976         int cnt;
 977
 978         /* don't allow partial writes */
 979         if (*ppos != 0)
 980                 return 0;
 981
 982         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
 983         if (!cmd_buf)
 984                 return count;
 985         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
 986         if (bytes_not_copied < 0)
 987                 return bytes_not_copied;
 988         if (bytes_not_copied > 0)
 989                 count -= bytes_not_copied;
 990         cmd_buf[count] = '\0';
 991
 992         cmd_buf_tmp = strchr(cmd_buf, '\n');
 993         if (cmd_buf_tmp) {
 994                 *cmd_buf_tmp = '\0';
 995                 count = cmd_buf_tmp - cmd_buf + 1;
 996         }
 997
 998         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
 999                 vsi_seid = -1;
1000                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1001                 if (cnt == 0) {
1002                         /* default to PF VSI */
1003                         vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1004                 } else if (vsi_seid < 0) {
1005                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1006                                  vsi_seid);
1007                         goto command_write_done;
1008                 }
1009
1010                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1011                 if (vsi)
1012                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1013                                  vsi->seid, vsi->uplink_seid);
1014                 else
1015                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1016
1017         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1018                 sscanf(&cmd_buf[7], "%i", &vsi_seid);
1019                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1020                 if (!vsi) {
1021                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1022                                  vsi_seid);
1023                         goto command_write_done;
1024                 }
1025
1026                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1027                 i40e_vsi_release(vsi);
1028
1029         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1030                 struct i40e_veb *veb;
1031                 int uplink_seid, i;
1032
1033                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1034                 if (cnt != 2) {
1035                         dev_info(&pf->pdev->dev,
1036                                  "add relay: bad command string, cnt=%d\n",
1037                                  cnt);
1038                         goto command_write_done;
1039                 } else if (uplink_seid < 0) {
1040                         dev_info(&pf->pdev->dev,
1041                                  "add relay %d: bad uplink seid\n",
1042                                  uplink_seid);
1043                         goto command_write_done;
1044                 }
1045
1046                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1047                 if (!vsi) {
1048                         dev_info(&pf->pdev->dev,
1049                                  "add relay: VSI %d not found\n", vsi_seid);
1050                         goto command_write_done;
1051                 }
1052
1053                 for (i = 0; i < I40E_MAX_VEB; i++)
1054                         if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1055                                 break;
1056                 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1057                     uplink_seid != pf->mac_seid) {
1058                         dev_info(&pf->pdev->dev,
1059                                  "add relay: relay uplink %d not found\n",
1060                                  uplink_seid);
1061                         goto command_write_done;
1062                 }
1063
1064                 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1065                                      vsi->tc_config.enabled_tc);
1066                 if (veb)
1067                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1068                 else
1069                         dev_info(&pf->pdev->dev, "add relay failed\n");
1070
1071         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1072                 int i;
1073                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1074                 if (cnt != 1) {
1075                         dev_info(&pf->pdev->dev,
1076                                  "del relay: bad command string, cnt=%d\n",
1077                                  cnt);
1078                         goto command_write_done;
1079                 } else if (veb_seid < 0) {
1080                         dev_info(&pf->pdev->dev,
1081                                  "del relay %d: bad relay seid\n", veb_seid);
1082                         goto command_write_done;
1083                 }
1084
1085                 /* find the veb */
1086                 for (i = 0; i < I40E_MAX_VEB; i++)
1087                         if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1088                                 break;
1089                 if (i >= I40E_MAX_VEB) {
1090                         dev_info(&pf->pdev->dev,
1091                                  "del relay: relay %d not found\n", veb_seid);
1092                         goto command_write_done;
1093                 }
1094
1095                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1096                 i40e_veb_release(pf->veb[i]);
1097
1098         } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
1099                 struct i40e_mac_filter *f;
1100                 int vlan = 0;
1101                 u8 ma[6];
1102                 int ret;
1103
1104                 cnt = sscanf(&cmd_buf[11],
1105                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1106                              &vsi_seid,
1107                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1108                              &vlan);
1109                 if (cnt == 7) {
1110                         vlan = 0;
1111                 } else if (cnt != 8) {
1112                         dev_info(&pf->pdev->dev,
1113                                  "add macaddr: bad command string, cnt=%d\n",
1114                                  cnt);
1115                         goto command_write_done;
1116                 }
1117
1118                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1119                 if (!vsi) {
1120                         dev_info(&pf->pdev->dev,
1121                                  "add macaddr: VSI %d not found\n", vsi_seid);
1122                         goto command_write_done;
1123                 }
1124
1125                 f = i40e_add_filter(vsi, ma, vlan, false, false);
1126                 ret = i40e_sync_vsi_filters(vsi);
1127                 if (f && !ret)
1128                         dev_info(&pf->pdev->dev,
1129                                  "add macaddr: %pM vlan=%d added to VSI %d\n",
1130                                  ma, vlan, vsi_seid);
1131                 else
1132                         dev_info(&pf->pdev->dev,
1133                                  "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1134                                  ma, vlan, vsi_seid, f, ret);
1135
1136         } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
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                                  "del 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                                  "del macaddr: VSI %d not found\n", vsi_seid);
1159                         goto command_write_done;
1160                 }
1161
1162                 i40e_del_filter(vsi, ma, vlan, false, false);
1163                 ret = i40e_sync_vsi_filters(vsi);
1164                 if (!ret)
1165                         dev_info(&pf->pdev->dev,
1166                                  "del macaddr: %pM vlan=%d removed from VSI %d\n",
1167                                  ma, vlan, vsi_seid);
1168                 else
1169                         dev_info(&pf->pdev->dev,
1170                                  "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1171                                  ma, vlan, vsi_seid, ret);
1172
1173         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
1174                 i40e_status ret;
1175                 u16 vid;
1176                 unsigned int v;
1177
1178                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1179                 if (cnt != 2) {
1180                         dev_info(&pf->pdev->dev,
1181                                  "add pvid: bad command string, cnt=%d\n", cnt);
1182                         goto command_write_done;
1183                 }
1184
1185                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1186                 if (!vsi) {
1187                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1188                                  vsi_seid);
1189                         goto command_write_done;
1190                 }
1191
1192                 vid = v;
1193                 ret = i40e_vsi_add_pvid(vsi, vid);
1194                 if (!ret)
1195                         dev_info(&pf->pdev->dev,
1196                                  "add pvid: %d added to VSI %d\n",
1197                                  vid, vsi_seid);
1198                 else
1199                         dev_info(&pf->pdev->dev,
1200                                  "add pvid: %d to VSI %d failed, ret=%d\n",
1201                                  vid, vsi_seid, ret);
1202
1203         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1204
1205                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1206                 if (cnt != 1) {
1207                         dev_info(&pf->pdev->dev,
1208                                  "del pvid: bad command string, cnt=%d\n",
1209                                  cnt);
1210                         goto command_write_done;
1211                 }
1212
1213                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1214                 if (!vsi) {
1215                         dev_info(&pf->pdev->dev,
1216                                  "del pvid: VSI %d not found\n", vsi_seid);
1217                         goto command_write_done;
1218                 }
1219
1220                 i40e_vsi_remove_pvid(vsi);
1221                 dev_info(&pf->pdev->dev,
1222                          "del pvid: removed from VSI %d\n", vsi_seid);
1223
1224         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1225                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1226                         i40e_fetch_switch_configuration(pf, true);
1227                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1228                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1229                         if (cnt > 0)
1230                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1231                         else
1232                                 i40e_dbg_dump_vsi_no_seid(pf);
1233                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1234                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1235                         if (cnt > 0)
1236                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1237                         else
1238                                 i40e_dbg_dump_veb_all(pf);
1239                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1240                         int ring_id, desc_n;
1241                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
1242                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1243                                              &vsi_seid, &ring_id, &desc_n);
1244                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1245                                                    desc_n, pf, true);
1246                         } else if (strncmp(&cmd_buf[10], "tx", 2)
1247                                         == 0) {
1248                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1249                                              &vsi_seid, &ring_id, &desc_n);
1250                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1251                                                    desc_n, pf, false);
1252                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1253                                 i40e_dbg_dump_aq_desc(pf);
1254                         } else {
1255                                 dev_info(&pf->pdev->dev,
1256                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1257                                 dev_info(&pf->pdev->dev,
1258                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1259                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
1260                         }
1261                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1262                         dev_info(&pf->pdev->dev,
1263                                  "core reset count: %d\n", pf->corer_count);
1264                         dev_info(&pf->pdev->dev,
1265                                  "global reset count: %d\n", pf->globr_count);
1266                         dev_info(&pf->pdev->dev,
1267                                  "emp reset count: %d\n", pf->empr_count);
1268                         dev_info(&pf->pdev->dev,
1269                                  "pf reset count: %d\n", pf->pfr_count);
1270                         dev_info(&pf->pdev->dev,
1271                                  "pf tx sluggish count: %d\n",
1272                                  pf->tx_sluggish_count);
1273                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1274                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
1275                         struct i40e_dcbx_config *cfg =
1276                                                 &pf->hw.local_dcbx_config;
1277                         struct i40e_dcbx_config *r_cfg =
1278                                                 &pf->hw.remote_dcbx_config;
1279                         int i, ret;
1280
1281                         bw_data = kzalloc(sizeof(
1282                                     struct i40e_aqc_query_port_ets_config_resp),
1283                                           GFP_KERNEL);
1284                         if (!bw_data) {
1285                                 ret = -ENOMEM;
1286                                 goto command_write_done;
1287                         }
1288
1289                         ret = i40e_aq_query_port_ets_config(&pf->hw,
1290                                                             pf->mac_seid,
1291                                                             bw_data, NULL);
1292                         if (ret) {
1293                                 dev_info(&pf->pdev->dev,
1294                                          "Query Port ETS Config AQ command failed =0x%x\n",
1295                                          pf->hw.aq.asq_last_status);
1296                                 kfree(bw_data);
1297                                 bw_data = NULL;
1298                                 goto command_write_done;
1299                         }
1300                         dev_info(&pf->pdev->dev,
1301                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1302                                  bw_data->tc_valid_bits,
1303                                  bw_data->tc_strict_priority_bits,
1304                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1305                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1306                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1307                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1308                                          bw_data->tc_bw_share_credits[i],
1309                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1310                         }
1311
1312                         kfree(bw_data);
1313                         bw_data = NULL;
1314
1315                         dev_info(&pf->pdev->dev,
1316                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1317                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1318                                  cfg->etscfg.maxtcs);
1319                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1320                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1321                                          i, cfg->etscfg.prioritytable[i],
1322                                          cfg->etscfg.tcbwtable[i],
1323                                          cfg->etscfg.tsatable[i]);
1324                         }
1325                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1326                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1327                                          i, cfg->etsrec.prioritytable[i],
1328                                          cfg->etsrec.tcbwtable[i],
1329                                          cfg->etsrec.tsatable[i]);
1330                         }
1331                         dev_info(&pf->pdev->dev,
1332                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1333                                  cfg->pfc.willing, cfg->pfc.mbc,
1334                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1335                         dev_info(&pf->pdev->dev,
1336                                  "port app_table: num_apps=%d\n", cfg->numapps);
1337                         for (i = 0; i < cfg->numapps; i++) {
1338                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1339                                          i, cfg->app[i].priority,
1340                                          cfg->app[i].selector,
1341                                          cfg->app[i].protocolid);
1342                         }
1343                         /* Peer TLV DCBX data */
1344                         dev_info(&pf->pdev->dev,
1345                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1346                                  r_cfg->etscfg.willing,
1347                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1348                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1349                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1350                                          i, r_cfg->etscfg.prioritytable[i],
1351                                          r_cfg->etscfg.tcbwtable[i],
1352                                          r_cfg->etscfg.tsatable[i]);
1353                         }
1354                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1355                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1356                                          i, r_cfg->etsrec.prioritytable[i],
1357                                          r_cfg->etsrec.tcbwtable[i],
1358                                          r_cfg->etsrec.tsatable[i]);
1359                         }
1360                         dev_info(&pf->pdev->dev,
1361                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1362                                  r_cfg->pfc.willing,
1363                                  r_cfg->pfc.mbc,
1364                                  r_cfg->pfc.pfccap,
1365                                  r_cfg->pfc.pfcenable);
1366                         dev_info(&pf->pdev->dev,
1367                                  "remote port app_table: num_apps=%d\n",
1368                                  r_cfg->numapps);
1369                         for (i = 0; i < r_cfg->numapps; i++) {
1370                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1371                                          i, r_cfg->app[i].priority,
1372                                          r_cfg->app[i].selector,
1373                                          r_cfg->app[i].protocolid);
1374                         }
1375                 } else {
1376                         dev_info(&pf->pdev->dev,
1377                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1378                         dev_info(&pf->pdev->dev, "dump switch\n");
1379                         dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1380                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1381                         dev_info(&pf->pdev->dev, "dump port\n");
1382                         dev_info(&pf->pdev->dev,
1383                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1384                 }
1385
1386         } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1387                 u32 level;
1388                 cnt = sscanf(&cmd_buf[10], "%i", &level);
1389                 if (cnt) {
1390                         if (I40E_DEBUG_USER & level) {
1391                                 pf->hw.debug_mask = level;
1392                                 dev_info(&pf->pdev->dev,
1393                                          "set hw.debug_mask = 0x%08x\n",
1394                                          pf->hw.debug_mask);
1395                         }
1396                         pf->msg_enable = level;
1397                         dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1398                                  pf->msg_enable);
1399                 } else {
1400                         dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1401                                  pf->msg_enable);
1402                 }
1403         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1404                 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1405                 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
1406
1407         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1408                 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1409                 i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED));
1410
1411         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1412                 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1413                 i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED));
1414
1415         } else if (strncmp(cmd_buf, "empr", 4) == 0) {
1416                 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
1417                 i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED));
1418
1419         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1420                 u32 address;
1421                 u32 value;
1422                 cnt = sscanf(&cmd_buf[4], "%i", &address);
1423                 if (cnt != 1) {
1424                         dev_info(&pf->pdev->dev, "read <reg>\n");
1425                         goto command_write_done;
1426                 }
1427
1428                 /* check the range on address */
1429                 if (address >= I40E_MAX_REGISTER) {
1430                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n",
1431                                  address);
1432                         goto command_write_done;
1433                 }
1434
1435                 value = rd32(&pf->hw, address);
1436                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1437                          address, value);
1438
1439         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1440                 u32 address, value;
1441                 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1442                 if (cnt != 2) {
1443                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1444                         goto command_write_done;
1445                 }
1446
1447                 /* check the range on address */
1448                 if (address >= I40E_MAX_REGISTER) {
1449                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n",
1450                                  address);
1451                         goto command_write_done;
1452                 }
1453                 wr32(&pf->hw, address, value);
1454                 value = rd32(&pf->hw, address);
1455                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1456                          address, value);
1457         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1458                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1459                         cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1460                         if (cnt == 0) {
1461                                 int i;
1462                                 for (i = 0; i < pf->num_alloc_vsi; i++)
1463                                         i40e_vsi_reset_stats(pf->vsi[i]);
1464                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1465                         } else if (cnt == 1) {
1466                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1467                                 if (!vsi) {
1468                                         dev_info(&pf->pdev->dev,
1469                                                  "clear_stats vsi: bad vsi %d\n",
1470                                                  vsi_seid);
1471                                         goto command_write_done;
1472                                 }
1473                                 i40e_vsi_reset_stats(vsi);
1474                                 dev_info(&pf->pdev->dev,
1475                                          "vsi clear stats called for vsi %d\n",
1476                                          vsi_seid);
1477                         } else {
1478                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1479                         }
1480                 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) {
1481                         i40e_pf_reset_stats(pf);
1482                         dev_info(&pf->pdev->dev, "pf clear stats called\n");
1483                 } else {
1484                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n");
1485                 }
1486         } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1487                 struct i40e_aq_desc *desc;
1488                 i40e_status ret;
1489
1490                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1491                 if (!desc)
1492                         goto command_write_done;
1493                 cnt = sscanf(&cmd_buf[11],
1494                              "%hx %hx %hx %hx %x %x %x %x %x %x",
1495                              &desc->flags,
1496                              &desc->opcode, &desc->datalen, &desc->retval,
1497                              &desc->cookie_high, &desc->cookie_low,
1498                              &desc->params.internal.param0,
1499                              &desc->params.internal.param1,
1500                              &desc->params.internal.param2,
1501                              &desc->params.internal.param3);
1502                 if (cnt != 10) {
1503                         dev_info(&pf->pdev->dev,
1504                                  "send aq_cmd: bad command string, cnt=%d\n",
1505                                  cnt);
1506                         kfree(desc);
1507                         desc = NULL;
1508                         goto command_write_done;
1509                 }
1510                 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1511                 if (!ret) {
1512                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1513                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1514                         dev_info(&pf->pdev->dev,
1515                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1516                                  desc->opcode, pf->hw.aq.asq_last_status);
1517                 } else {
1518                         dev_info(&pf->pdev->dev,
1519                                  "AQ command send failed Opcode %x Status: %d\n",
1520                                  desc->opcode, ret);
1521                 }
1522                 dev_info(&pf->pdev->dev,
1523                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1524                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1525                          desc->cookie_high, desc->cookie_low,
1526                          desc->params.internal.param0,
1527                          desc->params.internal.param1,
1528                          desc->params.internal.param2,
1529                          desc->params.internal.param3);
1530                 kfree(desc);
1531                 desc = NULL;
1532         } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1533                 struct i40e_aq_desc *desc;
1534                 i40e_status ret;
1535                 u16 buffer_len;
1536                 u8 *buff;
1537
1538                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1539                 if (!desc)
1540                         goto command_write_done;
1541                 cnt = sscanf(&cmd_buf[20],
1542                              "%hx %hx %hx %hx %x %x %x %x %x %x %hd",
1543                              &desc->flags,
1544                              &desc->opcode, &desc->datalen, &desc->retval,
1545                              &desc->cookie_high, &desc->cookie_low,
1546                              &desc->params.internal.param0,
1547                              &desc->params.internal.param1,
1548                              &desc->params.internal.param2,
1549                              &desc->params.internal.param3,
1550                              &buffer_len);
1551                 if (cnt != 11) {
1552                         dev_info(&pf->pdev->dev,
1553                                  "send indirect aq_cmd: bad command string, cnt=%d\n",
1554                                  cnt);
1555                         kfree(desc);
1556                         desc = NULL;
1557                         goto command_write_done;
1558                 }
1559                 /* Just stub a buffer big enough in case user messed up */
1560                 if (buffer_len == 0)
1561                         buffer_len = 1280;
1562
1563                 buff = kzalloc(buffer_len, GFP_KERNEL);
1564                 if (!buff) {
1565                         kfree(desc);
1566                         desc = NULL;
1567                         goto command_write_done;
1568                 }
1569                 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1570                 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1571                                             buffer_len, NULL);
1572                 if (!ret) {
1573                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1574                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1575                         dev_info(&pf->pdev->dev,
1576                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1577                                  desc->opcode, pf->hw.aq.asq_last_status);
1578                 } else {
1579                         dev_info(&pf->pdev->dev,
1580                                  "AQ command send failed Opcode %x Status: %d\n",
1581                                  desc->opcode, ret);
1582                 }
1583                 dev_info(&pf->pdev->dev,
1584                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1585                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1586                          desc->cookie_high, desc->cookie_low,
1587                          desc->params.internal.param0,
1588                          desc->params.internal.param1,
1589                          desc->params.internal.param2,
1590                          desc->params.internal.param3);
1591                 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1592                                DUMP_PREFIX_OFFSET, 16, 1,
1593                                buff, buffer_len, true);
1594                 kfree(buff);
1595                 buff = NULL;
1596                 kfree(desc);
1597                 desc = NULL;
1598         } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1599                    (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
1600                 struct i40e_fdir_filter fd_data;
1601                 u16 packet_len, i, j = 0;
1602                 char *asc_packet;
1603                 u8 *raw_packet;
1604                 bool add = false;
1605                 int ret;
1606
1607                 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
1608                         goto command_write_done;
1609
1610                 if (strncmp(cmd_buf, "add", 3) == 0)
1611                         add = true;
1612
1613                 if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED))
1614                         goto command_write_done;
1615
1616                 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1617                                      GFP_KERNEL);
1618                 if (!asc_packet)
1619                         goto command_write_done;
1620
1621                 raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1622                                      GFP_KERNEL);
1623
1624                 if (!raw_packet) {
1625                         kfree(asc_packet);
1626                         asc_packet = NULL;
1627                         goto command_write_done;
1628                 }
1629
1630                 cnt = sscanf(&cmd_buf[13],
1631                              "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s",
1632                              &fd_data.q_index,
1633                              &fd_data.flex_off, &fd_data.pctype,
1634                              &fd_data.dest_vsi, &fd_data.dest_ctl,
1635                              &fd_data.fd_status, &fd_data.cnt_index,
1636                              &fd_data.fd_id, &packet_len, asc_packet);
1637                 if (cnt != 10) {
1638                         dev_info(&pf->pdev->dev,
1639                                  "program fd_filter: bad command string, cnt=%d\n",
1640                                  cnt);
1641                         kfree(asc_packet);
1642                         asc_packet = NULL;
1643                         kfree(raw_packet);
1644                         goto command_write_done;
1645                 }
1646
1647                 /* fix packet length if user entered 0 */
1648                 if (packet_len == 0)
1649                         packet_len = I40E_FDIR_MAX_RAW_PACKET_SIZE;
1650
1651                 /* make sure to check the max as well */
1652                 packet_len = min_t(u16,
1653                                    packet_len, I40E_FDIR_MAX_RAW_PACKET_SIZE);
1654
1655                 for (i = 0; i < packet_len; i++) {
1656                         sscanf(&asc_packet[j], "%2hhx ",
1657                                &raw_packet[i]);
1658                         j += 3;
1659                 }
1660                 dev_info(&pf->pdev->dev, "FD raw packet dump\n");
1661                 print_hex_dump(KERN_INFO, "FD raw packet: ",
1662                                DUMP_PREFIX_OFFSET, 16, 1,
1663                                raw_packet, packet_len, true);
1664                 ret = i40e_program_fdir_filter(&fd_data, raw_packet, pf, add);
1665                 if (!ret) {
1666                         dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1667                 } else {
1668                         dev_info(&pf->pdev->dev,
1669                                  "Filter command send failed %d\n", ret);
1670                 }
1671                 kfree(raw_packet);
1672                 raw_packet = NULL;
1673                 kfree(asc_packet);
1674                 asc_packet = NULL;
1675         } else if (strncmp(cmd_buf, "fd-atr off", 10) == 0) {
1676                 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, false);
1677         } else if (strncmp(cmd_buf, "fd-atr on", 9) == 0) {
1678                 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, true);
1679         } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1680                 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1681                          i40e_get_current_fd_count(pf));
1682         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1683                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1684                         int ret;
1685                         ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1686                         if (ret) {
1687                                 dev_info(&pf->pdev->dev,
1688                                          "Stop LLDP AQ command failed =0x%x\n",
1689                                          pf->hw.aq.asq_last_status);
1690                                 goto command_write_done;
1691                         }
1692                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1693                                                 pf->hw.mac.addr,
1694                                                 I40E_ETH_P_LLDP, 0,
1695                                                 pf->vsi[pf->lan_vsi]->seid,
1696                                                 0, true, NULL, NULL);
1697                         if (ret) {
1698                                 dev_info(&pf->pdev->dev,
1699                                         "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1700                                         __func__, pf->hw.aq.asq_last_status);
1701                                 goto command_write_done;
1702                         }
1703 #ifdef CONFIG_I40E_DCB
1704                         pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1705                                        DCB_CAP_DCBX_VER_IEEE;
1706 #endif /* CONFIG_I40E_DCB */
1707                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1708                         int ret;
1709                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1710                                                 pf->hw.mac.addr,
1711                                                 I40E_ETH_P_LLDP, 0,
1712                                                 pf->vsi[pf->lan_vsi]->seid,
1713                                                 0, false, NULL, NULL);
1714                         if (ret) {
1715                                 dev_info(&pf->pdev->dev,
1716                                         "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1717                                         __func__, pf->hw.aq.asq_last_status);
1718                                 /* Continue and start FW LLDP anyways */
1719                         }
1720
1721                         ret = i40e_aq_start_lldp(&pf->hw, NULL);
1722                         if (ret) {
1723                                 dev_info(&pf->pdev->dev,
1724                                          "Start LLDP AQ command failed =0x%x\n",
1725                                          pf->hw.aq.asq_last_status);
1726                                 goto command_write_done;
1727                         }
1728 #ifdef CONFIG_I40E_DCB
1729                         pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1730                                        DCB_CAP_DCBX_VER_IEEE;
1731 #endif /* CONFIG_I40E_DCB */
1732                 } else if (strncmp(&cmd_buf[5],
1733                            "get local", 9) == 0) {
1734                         u16 llen, rlen;
1735                         int ret;
1736                         u8 *buff;
1737                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1738                         if (!buff)
1739                                 goto command_write_done;
1740
1741                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1742                                                    I40E_AQ_LLDP_MIB_LOCAL,
1743                                                    buff, I40E_LLDPDU_SIZE,
1744                                                    &llen, &rlen, NULL);
1745                         if (ret) {
1746                                 dev_info(&pf->pdev->dev,
1747                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1748                                          pf->hw.aq.asq_last_status);
1749                                 kfree(buff);
1750                                 buff = NULL;
1751                                 goto command_write_done;
1752                         }
1753                         dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1754                         print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1755                                        DUMP_PREFIX_OFFSET, 16, 1,
1756                                        buff, I40E_LLDPDU_SIZE, true);
1757                         kfree(buff);
1758                         buff = NULL;
1759                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1760                         u16 llen, rlen;
1761                         int ret;
1762                         u8 *buff;
1763                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1764                         if (!buff)
1765                                 goto command_write_done;
1766
1767                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1768                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1769                                         I40E_AQ_LLDP_MIB_REMOTE,
1770                                         buff, I40E_LLDPDU_SIZE,
1771                                         &llen, &rlen, NULL);
1772                         if (ret) {
1773                                 dev_info(&pf->pdev->dev,
1774                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1775                                          pf->hw.aq.asq_last_status);
1776                                 kfree(buff);
1777                                 buff = NULL;
1778                                 goto command_write_done;
1779                         }
1780                         dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1781                         print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1782                                        DUMP_PREFIX_OFFSET, 16, 1,
1783                                        buff, I40E_LLDPDU_SIZE, true);
1784                         kfree(buff);
1785                         buff = NULL;
1786                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1787                         int ret;
1788                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1789                                                                 true, NULL);
1790                         if (ret) {
1791                                 dev_info(&pf->pdev->dev,
1792                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1793                                          pf->hw.aq.asq_last_status);
1794                                 goto command_write_done;
1795                         }
1796                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1797                         int ret;
1798                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1799                                                                 false, NULL);
1800                         if (ret) {
1801                                 dev_info(&pf->pdev->dev,
1802                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1803                                          pf->hw.aq.asq_last_status);
1804                                 goto command_write_done;
1805                         }
1806                 }
1807         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1808                 u16 buffer_len, bytes;
1809                 u16 module;
1810                 u32 offset;
1811                 u16 *buff;
1812                 int ret;
1813
1814                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1815                              &module, &offset, &buffer_len);
1816                 if (cnt == 0) {
1817                         module = 0;
1818                         offset = 0;
1819                         buffer_len = 0;
1820                 } else if (cnt == 1) {
1821                         offset = 0;
1822                         buffer_len = 0;
1823                 } else if (cnt == 2) {
1824                         buffer_len = 0;
1825                 } else if (cnt > 3) {
1826                         dev_info(&pf->pdev->dev,
1827                                  "nvm read: bad command string, cnt=%d\n", cnt);
1828                         goto command_write_done;
1829                 }
1830
1831                 /* set the max length */
1832                 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1833
1834                 bytes = 2 * buffer_len;
1835
1836                 /* read at least 1k bytes, no more than 4kB */
1837                 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1838                 buff = kzalloc(bytes, GFP_KERNEL);
1839                 if (!buff)
1840                         goto command_write_done;
1841
1842                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1843                 if (ret) {
1844                         dev_info(&pf->pdev->dev,
1845                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1846                                  ret, pf->hw.aq.asq_last_status);
1847                         kfree(buff);
1848                         goto command_write_done;
1849                 }
1850
1851                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1852                                        bytes, (u8 *)buff, true, NULL);
1853                 i40e_release_nvm(&pf->hw);
1854                 if (ret) {
1855                         dev_info(&pf->pdev->dev,
1856                                  "Read NVM AQ failed err=%d status=0x%x\n",
1857                                  ret, pf->hw.aq.asq_last_status);
1858                 } else {
1859                         dev_info(&pf->pdev->dev,
1860                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1861                                  module, offset, buffer_len);
1862                         if (bytes)
1863                                 print_hex_dump(KERN_INFO, "NVM Dump: ",
1864                                         DUMP_PREFIX_OFFSET, 16, 2,
1865                                         buff, bytes, true);
1866                 }
1867                 kfree(buff);
1868                 buff = NULL;
1869         } else {
1870                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1871                 dev_info(&pf->pdev->dev, "available commands\n");
1872                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1873                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1874                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1875                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1876                 dev_info(&pf->pdev->dev, "  add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1877                 dev_info(&pf->pdev->dev, "  del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1878                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1879                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1880                 dev_info(&pf->pdev->dev, "  dump switch\n");
1881                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1882                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1883                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1884                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1885                 dev_info(&pf->pdev->dev, "  dump stats\n");
1886                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1887                 dev_info(&pf->pdev->dev, "  msg_enable [level]\n");
1888                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1889                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1890                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1891                 dev_info(&pf->pdev->dev, "  clear_stats pf\n");
1892                 dev_info(&pf->pdev->dev, "  pfr\n");
1893                 dev_info(&pf->pdev->dev, "  corer\n");
1894                 dev_info(&pf->pdev->dev, "  globr\n");
1895                 dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1896                 dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1897                 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");
1898                 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");
1899                 dev_info(&pf->pdev->dev, "  fd-atr off\n");
1900                 dev_info(&pf->pdev->dev, "  fd-atr on\n");
1901                 dev_info(&pf->pdev->dev, "  fd current cnt");
1902                 dev_info(&pf->pdev->dev, "  lldp start\n");
1903                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1904                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1905                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1906                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1907                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1908                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1909         }
1910
1911 command_write_done:
1912         kfree(cmd_buf);
1913         cmd_buf = NULL;
1914         return count;
1915 }
1916
1917 static const struct file_operations i40e_dbg_command_fops = {
1918         .owner = THIS_MODULE,
1919         .open =  simple_open,
1920         .read =  i40e_dbg_command_read,
1921         .write = i40e_dbg_command_write,
1922 };
1923
1924 /**************************************************************
1925  * netdev_ops
1926  * The netdev_ops entry in debugfs is for giving the driver commands
1927  * to be executed from the netdev operations.
1928  **************************************************************/
1929 static char i40e_dbg_netdev_ops_buf[256] = "hello world";
1930
1931 /**
1932  * i40e_dbg_netdev_ops - read for netdev_ops datum
1933  * @filp: the opened file
1934  * @buffer: where to write the data for the user to read
1935  * @count: the size of the user's buffer
1936  * @ppos: file position offset
1937  **/
1938 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1939                                         size_t count, loff_t *ppos)
1940 {
1941         struct i40e_pf *pf = filp->private_data;
1942         int bytes_not_copied;
1943         int buf_size = 256;
1944         char *buf;
1945         int len;
1946
1947         /* don't allow partal reads */
1948         if (*ppos != 0)
1949                 return 0;
1950         if (count < buf_size)
1951                 return -ENOSPC;
1952
1953         buf = kzalloc(buf_size, GFP_KERNEL);
1954         if (!buf)
1955                 return -ENOSPC;
1956
1957         len = snprintf(buf, buf_size, "%s: %s\n",
1958                        pf->vsi[pf->lan_vsi]->netdev->name,
1959                        i40e_dbg_netdev_ops_buf);
1960
1961         bytes_not_copied = copy_to_user(buffer, buf, len);
1962         kfree(buf);
1963
1964         if (bytes_not_copied < 0)
1965                 return bytes_not_copied;
1966
1967         *ppos = len;
1968         return len;
1969 }
1970
1971 /**
1972  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1973  * @filp: the opened file
1974  * @buffer: where to find the user's data
1975  * @count: the length of the user's data
1976  * @ppos: file position offset
1977  **/
1978 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1979                                          const char __user *buffer,
1980                                          size_t count, loff_t *ppos)
1981 {
1982         struct i40e_pf *pf = filp->private_data;
1983         int bytes_not_copied;
1984         struct i40e_vsi *vsi;
1985         char *buf_tmp;
1986         int vsi_seid;
1987         int i, cnt;
1988
1989         /* don't allow partial writes */
1990         if (*ppos != 0)
1991                 return 0;
1992         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1993                 return -ENOSPC;
1994
1995         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1996         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1997                                           buffer, count);
1998         if (bytes_not_copied < 0)
1999                 return bytes_not_copied;
2000         else if (bytes_not_copied > 0)
2001                 count -= bytes_not_copied;
2002         i40e_dbg_netdev_ops_buf[count] = '\0';
2003
2004         buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
2005         if (buf_tmp) {
2006                 *buf_tmp = '\0';
2007                 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
2008         }
2009
2010         if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
2011                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2012                 if (cnt != 1) {
2013                         dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
2014                         goto netdev_ops_write_done;
2015                 }
2016                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2017                 if (!vsi) {
2018                         dev_info(&pf->pdev->dev,
2019                                  "tx_timeout: VSI %d not found\n", vsi_seid);
2020                 } else if (!vsi->netdev) {
2021                         dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n",
2022                                  vsi_seid);
2023                 } else if (test_bit(__I40E_DOWN, &vsi->state)) {
2024                         dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n",
2025                                  vsi_seid);
2026                 } else if (rtnl_trylock()) {
2027                         vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
2028                         rtnl_unlock();
2029                         dev_info(&pf->pdev->dev, "tx_timeout called\n");
2030                 } else {
2031                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2032                 }
2033         } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
2034                 int mtu;
2035                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
2036                              &vsi_seid, &mtu);
2037                 if (cnt != 2) {
2038                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
2039                         goto netdev_ops_write_done;
2040                 }
2041                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2042                 if (!vsi) {
2043                         dev_info(&pf->pdev->dev,
2044                                  "change_mtu: VSI %d not found\n", vsi_seid);
2045                 } else if (!vsi->netdev) {
2046                         dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
2047                                  vsi_seid);
2048                 } else if (rtnl_trylock()) {
2049                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
2050                                                                 mtu);
2051                         rtnl_unlock();
2052                         dev_info(&pf->pdev->dev, "change_mtu called\n");
2053                 } else {
2054                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2055                 }
2056
2057         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
2058                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2059                 if (cnt != 1) {
2060                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
2061                         goto netdev_ops_write_done;
2062                 }
2063                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2064                 if (!vsi) {
2065                         dev_info(&pf->pdev->dev,
2066                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
2067                 } else if (!vsi->netdev) {
2068                         dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
2069                                  vsi_seid);
2070                 } else if (rtnl_trylock()) {
2071                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
2072                         rtnl_unlock();
2073                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
2074                 } else {
2075                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2076                 }
2077
2078         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
2079                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
2080                 if (cnt != 1) {
2081                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
2082                         goto netdev_ops_write_done;
2083                 }
2084                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2085                 if (!vsi) {
2086                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
2087                                  vsi_seid);
2088                 } else if (!vsi->netdev) {
2089                         dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
2090                                  vsi_seid);
2091                 } else {
2092                         for (i = 0; i < vsi->num_q_vectors; i++)
2093                                 napi_schedule(&vsi->q_vectors[i]->napi);
2094                         dev_info(&pf->pdev->dev, "napi called\n");
2095                 }
2096         } else {
2097                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
2098                          i40e_dbg_netdev_ops_buf);
2099                 dev_info(&pf->pdev->dev, "available commands\n");
2100                 dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
2101                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
2102                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
2103                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
2104         }
2105 netdev_ops_write_done:
2106         return count;
2107 }
2108
2109 static const struct file_operations i40e_dbg_netdev_ops_fops = {
2110         .owner = THIS_MODULE,
2111         .open = simple_open,
2112         .read = i40e_dbg_netdev_ops_read,
2113         .write = i40e_dbg_netdev_ops_write,
2114 };
2115
2116 /**
2117  * i40e_dbg_pf_init - setup the debugfs directory for the pf
2118  * @pf: the pf that is starting up
2119  **/
2120 void i40e_dbg_pf_init(struct i40e_pf *pf)
2121 {
2122         struct dentry *pfile;
2123         const char *name = pci_name(pf->pdev);
2124         const struct device *dev = &pf->pdev->dev;
2125
2126         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
2127         if (!pf->i40e_dbg_pf)
2128                 return;
2129
2130         pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
2131                                     &i40e_dbg_command_fops);
2132         if (!pfile)
2133                 goto create_failed;
2134
2135         pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2136                                     &i40e_dbg_dump_fops);
2137         if (!pfile)
2138                 goto create_failed;
2139
2140         pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
2141                                     &i40e_dbg_netdev_ops_fops);
2142         if (!pfile)
2143                 goto create_failed;
2144
2145         return;
2146
2147 create_failed:
2148         dev_info(dev, "debugfs dir/file for %s failed\n", name);
2149         debugfs_remove_recursive(pf->i40e_dbg_pf);
2150         return;
2151 }
2152
2153 /**
2154  * i40e_dbg_pf_exit - clear out the pf's debugfs entries
2155  * @pf: the pf that is stopping
2156  **/
2157 void i40e_dbg_pf_exit(struct i40e_pf *pf)
2158 {
2159         debugfs_remove_recursive(pf->i40e_dbg_pf);
2160         pf->i40e_dbg_pf = NULL;
2161
2162         kfree(i40e_dbg_dump_buf);
2163         i40e_dbg_dump_buf = NULL;
2164 }
2165
2166 /**
2167  * i40e_dbg_init - start up debugfs for the driver
2168  **/
2169 void i40e_dbg_init(void)
2170 {
2171         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2172         if (!i40e_dbg_root)
2173                 pr_info("init of debugfs failed\n");
2174 }
2175
2176 /**
2177  * i40e_dbg_exit - clean out the driver's debugfs entries
2178  **/
2179 void i40e_dbg_exit(void)
2180 {
2181         debugfs_remove_recursive(i40e_dbg_root);
2182         i40e_dbg_root = NULL;
2183 }
2184
2185 #endif /* CONFIG_DEBUG_FS */