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] = "";
 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         if (vsi == pf->vsi[pf->lan_vsi])
 394                 dev_info(&pf->pdev->dev, "MAC address: %pM SAN MAC: %pM Port MAC: %pM\n",
 395                          pf->hw.mac.addr,
 396                          pf->hw.mac.san_addr,
 397                          pf->hw.mac.port_addr);
 398         list_for_each_entry(f, &vsi->mac_filter_list, list) {
 399                 dev_info(&pf->pdev->dev,
 400                          "    mac_filter_list: %pM vid=%d, is_netdev=%d is_vf=%d counter=%d\n",
 401                          f->macaddr, f->vlan, f->is_netdev, f->is_vf,
 402                          f->counter);
 403         }
 404         nstat = i40e_get_vsi_stats_struct(vsi);
 405         dev_info(&pf->pdev->dev,
 406                  "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 407                  (long unsigned int)nstat->rx_packets,
 408                  (long unsigned int)nstat->rx_bytes,
 409                  (long unsigned int)nstat->rx_errors,
 410                  (long unsigned int)nstat->rx_dropped);
 411         dev_info(&pf->pdev->dev,
 412                  "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 413                  (long unsigned int)nstat->tx_packets,
 414                  (long unsigned int)nstat->tx_bytes,
 415                  (long unsigned int)nstat->tx_errors,
 416                  (long unsigned int)nstat->tx_dropped);
 417         dev_info(&pf->pdev->dev,
 418                  "    net_stats: multicast = %lu, collisions = %lu\n",
 419                  (long unsigned int)nstat->multicast,
 420                  (long unsigned int)nstat->collisions);
 421         dev_info(&pf->pdev->dev,
 422                  "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 423                  (long unsigned int)nstat->rx_length_errors,
 424                  (long unsigned int)nstat->rx_over_errors,
 425                  (long unsigned int)nstat->rx_crc_errors);
 426         dev_info(&pf->pdev->dev,
 427                  "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 428                  (long unsigned int)nstat->rx_frame_errors,
 429                  (long unsigned int)nstat->rx_fifo_errors,
 430                  (long unsigned int)nstat->rx_missed_errors);
 431         dev_info(&pf->pdev->dev,
 432                  "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 433                  (long unsigned int)nstat->tx_aborted_errors,
 434                  (long unsigned int)nstat->tx_carrier_errors,
 435                  (long unsigned int)nstat->tx_fifo_errors);
 436         dev_info(&pf->pdev->dev,
 437                  "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 438                  (long unsigned int)nstat->tx_heartbeat_errors,
 439                  (long unsigned int)nstat->tx_window_errors);
 440         dev_info(&pf->pdev->dev,
 441                  "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
 442                  (long unsigned int)nstat->rx_compressed,
 443                  (long unsigned int)nstat->tx_compressed);
 444         dev_info(&pf->pdev->dev,
 445                  "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 446                  (long unsigned int)vsi->net_stats_offsets.rx_packets,
 447                  (long unsigned int)vsi->net_stats_offsets.rx_bytes,
 448                  (long unsigned int)vsi->net_stats_offsets.rx_errors,
 449                  (long unsigned int)vsi->net_stats_offsets.rx_dropped);
 450         dev_info(&pf->pdev->dev,
 451                  "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 452                  (long unsigned int)vsi->net_stats_offsets.tx_packets,
 453                  (long unsigned int)vsi->net_stats_offsets.tx_bytes,
 454                  (long unsigned int)vsi->net_stats_offsets.tx_errors,
 455                  (long unsigned int)vsi->net_stats_offsets.tx_dropped);
 456         dev_info(&pf->pdev->dev,
 457                  "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
 458                  (long unsigned int)vsi->net_stats_offsets.multicast,
 459                  (long unsigned int)vsi->net_stats_offsets.collisions);
 460         dev_info(&pf->pdev->dev,
 461                  "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 462                  (long unsigned int)vsi->net_stats_offsets.rx_length_errors,
 463                  (long unsigned int)vsi->net_stats_offsets.rx_over_errors,
 464                  (long unsigned int)vsi->net_stats_offsets.rx_crc_errors);
 465         dev_info(&pf->pdev->dev,
 466                  "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 467                  (long unsigned int)vsi->net_stats_offsets.rx_frame_errors,
 468                  (long unsigned int)vsi->net_stats_offsets.rx_fifo_errors,
 469                  (long unsigned int)vsi->net_stats_offsets.rx_missed_errors);
 470         dev_info(&pf->pdev->dev,
 471                  "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 472                  (long unsigned int)vsi->net_stats_offsets.tx_aborted_errors,
 473                  (long unsigned int)vsi->net_stats_offsets.tx_carrier_errors,
 474                  (long unsigned int)vsi->net_stats_offsets.tx_fifo_errors);
 475         dev_info(&pf->pdev->dev,
 476                  "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 477                  (long unsigned int)vsi->net_stats_offsets.tx_heartbeat_errors,
 478                  (long unsigned int)vsi->net_stats_offsets.tx_window_errors);
 479         dev_info(&pf->pdev->dev,
 480                  "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
 481                  (long unsigned int)vsi->net_stats_offsets.rx_compressed,
 482                  (long unsigned int)vsi->net_stats_offsets.tx_compressed);
 483         dev_info(&pf->pdev->dev,
 484                  "    tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n",
 485                  vsi->tx_restart, vsi->tx_busy,
 486                  vsi->rx_buf_failed, vsi->rx_page_failed);
 487         rcu_read_lock();
 488         for (i = 0; i < vsi->num_queue_pairs; i++) {
 489                 struct i40e_ring *rx_ring = ACCESS_ONCE(vsi->rx_rings[i]);
 490                 if (!rx_ring)
 491                         continue;
 492
 493                 dev_info(&pf->pdev->dev,
 494                          "    rx_rings[%i]: desc = %p\n",
 495                          i, rx_ring->desc);
 496                 dev_info(&pf->pdev->dev,
 497                          "    rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n",
 498                          i, rx_ring->dev,
 499                          rx_ring->netdev,
 500                          rx_ring->rx_bi);
 501                 dev_info(&pf->pdev->dev,
 502                          "    rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 503                          i, rx_ring->state,
 504                          rx_ring->queue_index,
 505                          rx_ring->reg_idx);
 506                 dev_info(&pf->pdev->dev,
 507                          "    rx_rings[%i]: rx_hdr_len = %d, rx_buf_len = %d, dtype = %d\n",
 508                          i, rx_ring->rx_hdr_len,
 509                          rx_ring->rx_buf_len,
 510                          rx_ring->dtype);
 511                 dev_info(&pf->pdev->dev,
 512                          "    rx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 513                          i, rx_ring->hsplit,
 514                          rx_ring->next_to_use,
 515                          rx_ring->next_to_clean,
 516                          rx_ring->ring_active);
 517                 dev_info(&pf->pdev->dev,
 518                          "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
 519                          i, rx_ring->stats.packets,
 520                          rx_ring->stats.bytes,
 521                          rx_ring->rx_stats.non_eop_descs);
 522                 dev_info(&pf->pdev->dev,
 523                          "    rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
 524                          i,
 525                          rx_ring->rx_stats.alloc_page_failed,
 526                          rx_ring->rx_stats.alloc_buff_failed);
 527                 dev_info(&pf->pdev->dev,
 528                          "    rx_rings[%i]: size = %i, dma = 0x%08lx\n",
 529                          i, rx_ring->size,
 530                          (long unsigned int)rx_ring->dma);
 531                 dev_info(&pf->pdev->dev,
 532                          "    rx_rings[%i]: vsi = %p, q_vector = %p\n",
 533                          i, rx_ring->vsi,
 534                          rx_ring->q_vector);
 535         }
 536         for (i = 0; i < vsi->num_queue_pairs; i++) {
 537                 struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
 538                 if (!tx_ring)
 539                         continue;
 540
 541                 dev_info(&pf->pdev->dev,
 542                          "    tx_rings[%i]: desc = %p\n",
 543                          i, tx_ring->desc);
 544                 dev_info(&pf->pdev->dev,
 545                          "    tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n",
 546                          i, tx_ring->dev,
 547                          tx_ring->netdev,
 548                          tx_ring->tx_bi);
 549                 dev_info(&pf->pdev->dev,
 550                          "    tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 551                          i, tx_ring->state,
 552                          tx_ring->queue_index,
 553                          tx_ring->reg_idx);
 554                 dev_info(&pf->pdev->dev,
 555                          "    tx_rings[%i]: dtype = %d\n",
 556                          i, tx_ring->dtype);
 557                 dev_info(&pf->pdev->dev,
 558                          "    tx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 559                          i, tx_ring->hsplit,
 560                          tx_ring->next_to_use,
 561                          tx_ring->next_to_clean,
 562                          tx_ring->ring_active);
 563                 dev_info(&pf->pdev->dev,
 564                          "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 565                          i, tx_ring->stats.packets,
 566                          tx_ring->stats.bytes,
 567                          tx_ring->tx_stats.restart_queue);
 568                 dev_info(&pf->pdev->dev,
 569                          "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
 570                          i,
 571                          tx_ring->tx_stats.tx_busy,
 572                          tx_ring->tx_stats.tx_done_old);
 573                 dev_info(&pf->pdev->dev,
 574                          "    tx_rings[%i]: size = %i, dma = 0x%08lx\n",
 575                          i, tx_ring->size,
 576                          (long unsigned int)tx_ring->dma);
 577                 dev_info(&pf->pdev->dev,
 578                          "    tx_rings[%i]: vsi = %p, q_vector = %p\n",
 579                          i, tx_ring->vsi,
 580                          tx_ring->q_vector);
 581                 dev_info(&pf->pdev->dev,
 582                          "    tx_rings[%i]: DCB tc = %d\n",
 583                          i, tx_ring->dcb_tc);
 584         }
 585         rcu_read_unlock();
 586         dev_info(&pf->pdev->dev,
 587                  "    work_limit = %d, rx_itr_setting = %d (%s), tx_itr_setting = %d (%s)\n",
 588                  vsi->work_limit, vsi->rx_itr_setting,
 589                  ITR_IS_DYNAMIC(vsi->rx_itr_setting) ? "dynamic" : "fixed",
 590                  vsi->tx_itr_setting,
 591                  ITR_IS_DYNAMIC(vsi->tx_itr_setting) ? "dynamic" : "fixed");
 592         dev_info(&pf->pdev->dev,
 593                  "    max_frame = %d, rx_hdr_len = %d, rx_buf_len = %d dtype = %d\n",
 594                  vsi->max_frame, vsi->rx_hdr_len, vsi->rx_buf_len, vsi->dtype);
 595         dev_info(&pf->pdev->dev,
 596                  "    num_q_vectors = %i, base_vector = %i\n",
 597                  vsi->num_q_vectors, vsi->base_vector);
 598         dev_info(&pf->pdev->dev,
 599                  "    seid = %d, id = %d, uplink_seid = %d\n",
 600                  vsi->seid, vsi->id, vsi->uplink_seid);
 601         dev_info(&pf->pdev->dev,
 602                  "    base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
 603                  vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
 604         dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 605         dev_info(&pf->pdev->dev,
 606                  "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 607                  vsi->info.valid_sections, vsi->info.switch_id);
 608         dev_info(&pf->pdev->dev,
 609                  "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 610                  vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 611         dev_info(&pf->pdev->dev,
 612                  "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 613                  vsi->info.sec_flags, vsi->info.sec_reserved);
 614         dev_info(&pf->pdev->dev,
 615                  "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 616                  vsi->info.pvid, vsi->info.fcoe_pvid,
 617                  vsi->info.port_vlan_flags);
 618         dev_info(&pf->pdev->dev,
 619                  "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 620                  vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 621                  vsi->info.pvlan_reserved[2]);
 622         dev_info(&pf->pdev->dev,
 623                  "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 624                  vsi->info.ingress_table, vsi->info.egress_table);
 625         dev_info(&pf->pdev->dev,
 626                  "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 627                  vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 628                  vsi->info.cas_pv_reserved);
 629         dev_info(&pf->pdev->dev,
 630                  "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 631                  vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 632                  vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 633                  vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 634                  vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 635         dev_info(&pf->pdev->dev,
 636                  "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 637                  vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 638                  vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 639                  vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 640                  vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 641         dev_info(&pf->pdev->dev,
 642                  "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 643                  vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 644                  vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 645                  vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 646                  vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 647         dev_info(&pf->pdev->dev,
 648                  "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 649                  vsi->info.queueing_opt_flags,
 650                  vsi->info.queueing_opt_reserved[0],
 651                  vsi->info.queueing_opt_reserved[1],
 652                  vsi->info.queueing_opt_reserved[2]);
 653         dev_info(&pf->pdev->dev,
 654                  "    info: up_enable_bits = 0x%02x\n",
 655                  vsi->info.up_enable_bits);
 656         dev_info(&pf->pdev->dev,
 657                  "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 658                  vsi->info.sched_reserved, vsi->info.outer_up_table);
 659         dev_info(&pf->pdev->dev,
 660                  "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 661                  vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 662                  vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 663                  vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 664                  vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 665         dev_info(&pf->pdev->dev,
 666                  "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 667                  vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 668                  vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 669                  vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 670                  vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 671         dev_info(&pf->pdev->dev,
 672                  "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 673                  vsi->info.stat_counter_idx, vsi->info.sched_id);
 674         dev_info(&pf->pdev->dev,
 675                  "    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",
 676                  vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 677                  vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 678                  vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 679                  vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 680                  vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 681                  vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 682         if (vsi->back)
 683                 dev_info(&pf->pdev->dev, "    PF = %p\n", vsi->back);
 684         dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 685         dev_info(&pf->pdev->dev,
 686                  "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 687                  vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 688         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 689                 dev_info(&pf->pdev->dev,
 690                          "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 691                          i, vsi->tc_config.tc_info[i].qoffset,
 692                          vsi->tc_config.tc_info[i].qcount,
 693                          vsi->tc_config.tc_info[i].netdev_tc);
 694         }
 695         dev_info(&pf->pdev->dev,
 696                  "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 697                  vsi->bw_limit, vsi->bw_max_quanta);
 698         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 699                 dev_info(&pf->pdev->dev,
 700                          "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 701                          i, vsi->bw_ets_share_credits[i],
 702                          vsi->bw_ets_limit_credits[i],
 703                          vsi->bw_ets_max_quanta[i]);
 704         }
 705 #ifdef I40E_FCOE
 706         if (vsi->type == I40E_VSI_FCOE) {
 707                 dev_info(&pf->pdev->dev,
 708                          "    fcoe_stats: rx_packets = %llu, rx_dwords = %llu, rx_dropped = %llu\n",
 709                          vsi->fcoe_stats.rx_fcoe_packets,
 710                          vsi->fcoe_stats.rx_fcoe_dwords,
 711                          vsi->fcoe_stats.rx_fcoe_dropped);
 712                 dev_info(&pf->pdev->dev,
 713                          "    fcoe_stats: tx_packets = %llu, tx_dwords = %llu\n",
 714                          vsi->fcoe_stats.tx_fcoe_packets,
 715                          vsi->fcoe_stats.tx_fcoe_dwords);
 716                 dev_info(&pf->pdev->dev,
 717                          "    fcoe_stats: bad_crc = %llu, last_error = %llu\n",
 718                          vsi->fcoe_stats.fcoe_bad_fccrc,
 719                          vsi->fcoe_stats.fcoe_last_error);
 720                 dev_info(&pf->pdev->dev, "    fcoe_stats: ddp_count = %llu\n",
 721                          vsi->fcoe_stats.fcoe_ddp_count);
 722         }
 723 #endif
 724 }
 725
 726 /**
 727  * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 728  * @pf: the i40e_pf created in command write
 729  **/
 730 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 731 {
 732         struct i40e_adminq_ring *ring;
 733         struct i40e_hw *hw = &pf->hw;
 734         char hdr[32];
 735         int i;
 736
 737         snprintf(hdr, sizeof(hdr), "%s %s:         ",
 738                  dev_driver_string(&pf->pdev->dev),
 739                  dev_name(&pf->pdev->dev));
 740
 741         /* first the send (command) ring, then the receive (event) ring */
 742         dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 743         ring = &(hw->aq.asq);
 744         for (i = 0; i < ring->count; i++) {
 745                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 746                 dev_info(&pf->pdev->dev,
 747                          "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 748                          i, d->flags, d->opcode, d->datalen, d->retval,
 749                          d->cookie_high, d->cookie_low);
 750                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 751                                16, 1, d->params.raw, 16, 0);
 752         }
 753
 754         dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 755         ring = &(hw->aq.arq);
 756         for (i = 0; i < ring->count; i++) {
 757                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 758                 dev_info(&pf->pdev->dev,
 759                          "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 760                          i, d->flags, d->opcode, d->datalen, d->retval,
 761                          d->cookie_high, d->cookie_low);
 762                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 763                                16, 1, d->params.raw, 16, 0);
 764         }
 765 }
 766
 767 /**
 768  * i40e_dbg_dump_desc - handles dump desc write into command datum
 769  * @cnt: number of arguments that the user supplied
 770  * @vsi_seid: vsi id entered by user
 771  * @ring_id: ring id entered by user
 772  * @desc_n: descriptor number entered by user
 773  * @pf: the i40e_pf created in command write
 774  * @is_rx_ring: true if rx, false if tx
 775  **/
 776 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 777                                struct i40e_pf *pf, bool is_rx_ring)
 778 {
 779         struct i40e_tx_desc *txd;
 780         union i40e_rx_desc *rxd;
 781         struct i40e_ring *ring;
 782         struct i40e_vsi *vsi;
 783         int i;
 784
 785         vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 786         if (!vsi) {
 787                 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 788                 return;
 789         }
 790         if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 791                 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 792                 return;
 793         }
 794         if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
 795                 dev_info(&pf->pdev->dev,
 796                          "descriptor rings have not been allocated for vsi %d\n",
 797                          vsi_seid);
 798                 return;
 799         }
 800
 801         ring = kmemdup(is_rx_ring
 802                        ? vsi->rx_rings[ring_id] : vsi->tx_rings[ring_id],
 803                        sizeof(*ring), GFP_KERNEL);
 804         if (!ring)
 805                 return;
 806
 807         if (cnt == 2) {
 808                 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 809                          vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
 810                 for (i = 0; i < ring->count; i++) {
 811                         if (!is_rx_ring) {
 812                                 txd = I40E_TX_DESC(ring, i);
 813                                 dev_info(&pf->pdev->dev,
 814                                          "   d[%03i] = 0x%016llx 0x%016llx\n",
 815                                          i, txd->buffer_addr,
 816                                          txd->cmd_type_offset_bsz);
 817                         } else if (sizeof(union i40e_rx_desc) ==
 818                                    sizeof(union i40e_16byte_rx_desc)) {
 819                                 rxd = I40E_RX_DESC(ring, i);
 820                                 dev_info(&pf->pdev->dev,
 821                                          "   d[%03i] = 0x%016llx 0x%016llx\n",
 822                                          i, rxd->read.pkt_addr,
 823                                          rxd->read.hdr_addr);
 824                         } else {
 825                                 rxd = I40E_RX_DESC(ring, i);
 826                                 dev_info(&pf->pdev->dev,
 827                                          "   d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 828                                          i, rxd->read.pkt_addr,
 829                                          rxd->read.hdr_addr,
 830                                          rxd->read.rsvd1, rxd->read.rsvd2);
 831                         }
 832                 }
 833         } else if (cnt == 3) {
 834                 if (desc_n >= ring->count || desc_n < 0) {
 835                         dev_info(&pf->pdev->dev,
 836                                  "descriptor %d not found\n", desc_n);
 837                         goto out;
 838                 }
 839                 if (!is_rx_ring) {
 840                         txd = I40E_TX_DESC(ring, desc_n);
 841                         dev_info(&pf->pdev->dev,
 842                                  "vsi = %02i tx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
 843                                  vsi_seid, ring_id, desc_n,
 844                                  txd->buffer_addr, txd->cmd_type_offset_bsz);
 845                 } else if (sizeof(union i40e_rx_desc) ==
 846                            sizeof(union i40e_16byte_rx_desc)) {
 847                         rxd = I40E_RX_DESC(ring, desc_n);
 848                         dev_info(&pf->pdev->dev,
 849                                  "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
 850                                  vsi_seid, ring_id, desc_n,
 851                                  rxd->read.pkt_addr, rxd->read.hdr_addr);
 852                 } else {
 853                         rxd = I40E_RX_DESC(ring, desc_n);
 854                         dev_info(&pf->pdev->dev,
 855                                  "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 856                                  vsi_seid, ring_id, desc_n,
 857                                  rxd->read.pkt_addr, rxd->read.hdr_addr,
 858                                  rxd->read.rsvd1, rxd->read.rsvd2);
 859                 }
 860         } else {
 861                 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
 862         }
 863
 864 out:
 865         kfree(ring);
 866 }
 867
 868 /**
 869  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 870  * @pf: the i40e_pf created in command write
 871  **/
 872 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 873 {
 874         int i;
 875
 876         for (i = 0; i < pf->num_alloc_vsi; i++)
 877                 if (pf->vsi[i])
 878                         dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 879                                  i, pf->vsi[i]->seid);
 880 }
 881
 882 /**
 883  * i40e_dbg_dump_stats - handles dump stats write into command datum
 884  * @pf: the i40e_pf created in command write
 885  * @estats: the eth stats structure to be dumped
 886  **/
 887 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 888                                     struct i40e_eth_stats *estats)
 889 {
 890         dev_info(&pf->pdev->dev, "  ethstats:\n");
 891         dev_info(&pf->pdev->dev,
 892                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 893                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 894         dev_info(&pf->pdev->dev,
 895                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
 896                  estats->rx_broadcast, estats->rx_discards);
 897         dev_info(&pf->pdev->dev,
 898                  "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 899                  estats->rx_unknown_protocol, estats->tx_bytes);
 900         dev_info(&pf->pdev->dev,
 901                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 902                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 903         dev_info(&pf->pdev->dev,
 904                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 905                  estats->tx_discards, estats->tx_errors);
 906 }
 907
 908 /**
 909  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 910  * @pf: the i40e_pf created in command write
 911  * @seid: the seid the user put in
 912  **/
 913 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 914 {
 915         struct i40e_veb *veb;
 916
 917         if ((seid < I40E_BASE_VEB_SEID) ||
 918             (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
 919                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
 920                 return;
 921         }
 922
 923         veb = i40e_dbg_find_veb(pf, seid);
 924         if (!veb) {
 925                 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 926                 return;
 927         }
 928         dev_info(&pf->pdev->dev,
 929                  "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d mode=%s\n",
 930                  veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 931                  veb->uplink_seid,
 932                  veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
 933         i40e_dbg_dump_eth_stats(pf, &veb->stats);
 934 }
 935
 936 /**
 937  * i40e_dbg_dump_veb_all - dumps all known veb's stats
 938  * @pf: the i40e_pf created in command write
 939  **/
 940 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 941 {
 942         struct i40e_veb *veb;
 943         int i;
 944
 945         for (i = 0; i < I40E_MAX_VEB; i++) {
 946                 veb = pf->veb[i];
 947                 if (veb)
 948                         i40e_dbg_dump_veb_seid(pf, veb->seid);
 949         }
 950 }
 951
 952 /**
 953  * i40e_dbg_cmd_fd_ctrl - Enable/disable FD sideband/ATR
 954  * @pf: the PF that would be altered
 955  * @flag: flag that needs enabling or disabling
 956  * @enable: Enable/disable FD SD/ATR
 957  **/
 958 static void i40e_dbg_cmd_fd_ctrl(struct i40e_pf *pf, u64 flag, bool enable)
 959 {
 960         if (enable) {
 961                 pf->flags |= flag;
 962         } else {
 963                 pf->flags &= ~flag;
 964                 pf->auto_disable_flags |= flag;
 965         }
 966         dev_info(&pf->pdev->dev, "requesting a PF reset\n");
 967         i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
 968 }
 969
 970 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
 971 /**
 972  * i40e_dbg_command_write - write into command datum
 973  * @filp: the opened file
 974  * @buffer: where to find the user's data
 975  * @count: the length of the user's data
 976  * @ppos: file position offset
 977  **/
 978 static ssize_t i40e_dbg_command_write(struct file *filp,
 979                                       const char __user *buffer,
 980                                       size_t count, loff_t *ppos)
 981 {
 982         struct i40e_pf *pf = filp->private_data;
 983         char *cmd_buf, *cmd_buf_tmp;
 984         int bytes_not_copied;
 985         struct i40e_vsi *vsi;
 986         int vsi_seid;
 987         int veb_seid;
 988         int cnt;
 989
 990         /* don't allow partial writes */
 991         if (*ppos != 0)
 992                 return 0;
 993
 994         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
 995         if (!cmd_buf)
 996                 return count;
 997         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
 998         if (bytes_not_copied < 0) {
 999                 kfree(cmd_buf);
1000                 return bytes_not_copied;
1001         }
1002         if (bytes_not_copied > 0)
1003                 count -= bytes_not_copied;
1004         cmd_buf[count] = '\0';
1005
1006         cmd_buf_tmp = strchr(cmd_buf, '\n');
1007         if (cmd_buf_tmp) {
1008                 *cmd_buf_tmp = '\0';
1009                 count = cmd_buf_tmp - cmd_buf + 1;
1010         }
1011
1012         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
1013                 vsi_seid = -1;
1014                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1015                 if (cnt == 0) {
1016                         /* default to PF VSI */
1017                         vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1018                 } else if (vsi_seid < 0) {
1019                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1020                                  vsi_seid);
1021                         goto command_write_done;
1022                 }
1023
1024                 /* By default we are in VEPA mode, if this is the first VF/VMDq
1025                  * VSI to be added switch to VEB mode.
1026                  */
1027                 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1028                         pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1029                         i40e_do_reset_safe(pf,
1030                                            BIT_ULL(__I40E_PF_RESET_REQUESTED));
1031                 }
1032
1033                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1034                 if (vsi)
1035                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1036                                  vsi->seid, vsi->uplink_seid);
1037                 else
1038                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1039
1040         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1041                 sscanf(&cmd_buf[7], "%i", &vsi_seid);
1042                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1043                 if (!vsi) {
1044                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1045                                  vsi_seid);
1046                         goto command_write_done;
1047                 }
1048
1049                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1050                 i40e_vsi_release(vsi);
1051
1052         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1053                 struct i40e_veb *veb;
1054                 int uplink_seid, i;
1055
1056                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1057                 if (cnt != 2) {
1058                         dev_info(&pf->pdev->dev,
1059                                  "add relay: bad command string, cnt=%d\n",
1060                                  cnt);
1061                         goto command_write_done;
1062                 } else if (uplink_seid < 0) {
1063                         dev_info(&pf->pdev->dev,
1064                                  "add relay %d: bad uplink seid\n",
1065                                  uplink_seid);
1066                         goto command_write_done;
1067                 }
1068
1069                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1070                 if (!vsi) {
1071                         dev_info(&pf->pdev->dev,
1072                                  "add relay: VSI %d not found\n", vsi_seid);
1073                         goto command_write_done;
1074                 }
1075
1076                 for (i = 0; i < I40E_MAX_VEB; i++)
1077                         if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1078                                 break;
1079                 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1080                     uplink_seid != pf->mac_seid) {
1081                         dev_info(&pf->pdev->dev,
1082                                  "add relay: relay uplink %d not found\n",
1083                                  uplink_seid);
1084                         goto command_write_done;
1085                 }
1086
1087                 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1088                                      vsi->tc_config.enabled_tc);
1089                 if (veb)
1090                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1091                 else
1092                         dev_info(&pf->pdev->dev, "add relay failed\n");
1093
1094         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1095                 int i;
1096                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1097                 if (cnt != 1) {
1098                         dev_info(&pf->pdev->dev,
1099                                  "del relay: bad command string, cnt=%d\n",
1100                                  cnt);
1101                         goto command_write_done;
1102                 } else if (veb_seid < 0) {
1103                         dev_info(&pf->pdev->dev,
1104                                  "del relay %d: bad relay seid\n", veb_seid);
1105                         goto command_write_done;
1106                 }
1107
1108                 /* find the veb */
1109                 for (i = 0; i < I40E_MAX_VEB; i++)
1110                         if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1111                                 break;
1112                 if (i >= I40E_MAX_VEB) {
1113                         dev_info(&pf->pdev->dev,
1114                                  "del relay: relay %d not found\n", veb_seid);
1115                         goto command_write_done;
1116                 }
1117
1118                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1119                 i40e_veb_release(pf->veb[i]);
1120
1121         } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
1122                 struct i40e_mac_filter *f;
1123                 int vlan = 0;
1124                 u8 ma[6];
1125                 int ret;
1126
1127                 cnt = sscanf(&cmd_buf[11],
1128                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1129                              &vsi_seid,
1130                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1131                              &vlan);
1132                 if (cnt == 7) {
1133                         vlan = 0;
1134                 } else if (cnt != 8) {
1135                         dev_info(&pf->pdev->dev,
1136                                  "add macaddr: bad command string, cnt=%d\n",
1137                                  cnt);
1138                         goto command_write_done;
1139                 }
1140
1141                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1142                 if (!vsi) {
1143                         dev_info(&pf->pdev->dev,
1144                                  "add macaddr: VSI %d not found\n", vsi_seid);
1145                         goto command_write_done;
1146                 }
1147
1148                 f = i40e_add_filter(vsi, ma, vlan, false, false);
1149                 ret = i40e_sync_vsi_filters(vsi);
1150                 if (f && !ret)
1151                         dev_info(&pf->pdev->dev,
1152                                  "add macaddr: %pM vlan=%d added to VSI %d\n",
1153                                  ma, vlan, vsi_seid);
1154                 else
1155                         dev_info(&pf->pdev->dev,
1156                                  "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1157                                  ma, vlan, vsi_seid, f, ret);
1158
1159         } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
1160                 int vlan = 0;
1161                 u8 ma[6];
1162                 int ret;
1163
1164                 cnt = sscanf(&cmd_buf[11],
1165                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1166                              &vsi_seid,
1167                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1168                              &vlan);
1169                 if (cnt == 7) {
1170                         vlan = 0;
1171                 } else if (cnt != 8) {
1172                         dev_info(&pf->pdev->dev,
1173                                  "del macaddr: bad command string, cnt=%d\n",
1174                                  cnt);
1175                         goto command_write_done;
1176                 }
1177
1178                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1179                 if (!vsi) {
1180                         dev_info(&pf->pdev->dev,
1181                                  "del macaddr: VSI %d not found\n", vsi_seid);
1182                         goto command_write_done;
1183                 }
1184
1185                 i40e_del_filter(vsi, ma, vlan, false, false);
1186                 ret = i40e_sync_vsi_filters(vsi);
1187                 if (!ret)
1188                         dev_info(&pf->pdev->dev,
1189                                  "del macaddr: %pM vlan=%d removed from VSI %d\n",
1190                                  ma, vlan, vsi_seid);
1191                 else
1192                         dev_info(&pf->pdev->dev,
1193                                  "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1194                                  ma, vlan, vsi_seid, ret);
1195
1196         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
1197                 i40e_status ret;
1198                 u16 vid;
1199                 unsigned int v;
1200
1201                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1202                 if (cnt != 2) {
1203                         dev_info(&pf->pdev->dev,
1204                                  "add pvid: bad command string, cnt=%d\n", cnt);
1205                         goto command_write_done;
1206                 }
1207
1208                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1209                 if (!vsi) {
1210                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1211                                  vsi_seid);
1212                         goto command_write_done;
1213                 }
1214
1215                 vid = v;
1216                 ret = i40e_vsi_add_pvid(vsi, vid);
1217                 if (!ret)
1218                         dev_info(&pf->pdev->dev,
1219                                  "add pvid: %d added to VSI %d\n",
1220                                  vid, vsi_seid);
1221                 else
1222                         dev_info(&pf->pdev->dev,
1223                                  "add pvid: %d to VSI %d failed, ret=%d\n",
1224                                  vid, vsi_seid, ret);
1225
1226         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1227
1228                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1229                 if (cnt != 1) {
1230                         dev_info(&pf->pdev->dev,
1231                                  "del pvid: bad command string, cnt=%d\n",
1232                                  cnt);
1233                         goto command_write_done;
1234                 }
1235
1236                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1237                 if (!vsi) {
1238                         dev_info(&pf->pdev->dev,
1239                                  "del pvid: VSI %d not found\n", vsi_seid);
1240                         goto command_write_done;
1241                 }
1242
1243                 i40e_vsi_remove_pvid(vsi);
1244                 dev_info(&pf->pdev->dev,
1245                          "del pvid: removed from VSI %d\n", vsi_seid);
1246
1247         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1248                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1249                         i40e_fetch_switch_configuration(pf, true);
1250                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1251                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1252                         if (cnt > 0)
1253                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1254                         else
1255                                 i40e_dbg_dump_vsi_no_seid(pf);
1256                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1257                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1258                         if (cnt > 0)
1259                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1260                         else
1261                                 i40e_dbg_dump_veb_all(pf);
1262                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1263                         int ring_id, desc_n;
1264                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
1265                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1266                                              &vsi_seid, &ring_id, &desc_n);
1267                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1268                                                    desc_n, pf, true);
1269                         } else if (strncmp(&cmd_buf[10], "tx", 2)
1270                                         == 0) {
1271                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1272                                              &vsi_seid, &ring_id, &desc_n);
1273                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1274                                                    desc_n, pf, false);
1275                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1276                                 i40e_dbg_dump_aq_desc(pf);
1277                         } else {
1278                                 dev_info(&pf->pdev->dev,
1279                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1280                                 dev_info(&pf->pdev->dev,
1281                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1282                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
1283                         }
1284                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1285                         dev_info(&pf->pdev->dev,
1286                                  "core reset count: %d\n", pf->corer_count);
1287                         dev_info(&pf->pdev->dev,
1288                                  "global reset count: %d\n", pf->globr_count);
1289                         dev_info(&pf->pdev->dev,
1290                                  "emp reset count: %d\n", pf->empr_count);
1291                         dev_info(&pf->pdev->dev,
1292                                  "pf reset count: %d\n", pf->pfr_count);
1293                         dev_info(&pf->pdev->dev,
1294                                  "pf tx sluggish count: %d\n",
1295                                  pf->tx_sluggish_count);
1296                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1297                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
1298                         struct i40e_dcbx_config *cfg =
1299                                                 &pf->hw.local_dcbx_config;
1300                         struct i40e_dcbx_config *r_cfg =
1301                                                 &pf->hw.remote_dcbx_config;
1302                         int i, ret;
1303
1304                         bw_data = kzalloc(sizeof(
1305                                     struct i40e_aqc_query_port_ets_config_resp),
1306                                           GFP_KERNEL);
1307                         if (!bw_data) {
1308                                 ret = -ENOMEM;
1309                                 goto command_write_done;
1310                         }
1311
1312                         ret = i40e_aq_query_port_ets_config(&pf->hw,
1313                                                             pf->mac_seid,
1314                                                             bw_data, NULL);
1315                         if (ret) {
1316                                 dev_info(&pf->pdev->dev,
1317                                          "Query Port ETS Config AQ command failed =0x%x\n",
1318                                          pf->hw.aq.asq_last_status);
1319                                 kfree(bw_data);
1320                                 bw_data = NULL;
1321                                 goto command_write_done;
1322                         }
1323                         dev_info(&pf->pdev->dev,
1324                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1325                                  bw_data->tc_valid_bits,
1326                                  bw_data->tc_strict_priority_bits,
1327                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1328                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1329                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1330                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1331                                          bw_data->tc_bw_share_credits[i],
1332                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1333                         }
1334
1335                         kfree(bw_data);
1336                         bw_data = NULL;
1337
1338                         dev_info(&pf->pdev->dev,
1339                                  "port dcbx_mode=%d\n", cfg->dcbx_mode);
1340                         dev_info(&pf->pdev->dev,
1341                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1342                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1343                                  cfg->etscfg.maxtcs);
1344                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1345                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1346                                          i, cfg->etscfg.prioritytable[i],
1347                                          cfg->etscfg.tcbwtable[i],
1348                                          cfg->etscfg.tsatable[i]);
1349                         }
1350                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1351                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1352                                          i, cfg->etsrec.prioritytable[i],
1353                                          cfg->etsrec.tcbwtable[i],
1354                                          cfg->etsrec.tsatable[i]);
1355                         }
1356                         dev_info(&pf->pdev->dev,
1357                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1358                                  cfg->pfc.willing, cfg->pfc.mbc,
1359                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1360                         dev_info(&pf->pdev->dev,
1361                                  "port app_table: num_apps=%d\n", cfg->numapps);
1362                         for (i = 0; i < cfg->numapps; i++) {
1363                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1364                                          i, cfg->app[i].priority,
1365                                          cfg->app[i].selector,
1366                                          cfg->app[i].protocolid);
1367                         }
1368                         /* Peer TLV DCBX data */
1369                         dev_info(&pf->pdev->dev,
1370                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1371                                  r_cfg->etscfg.willing,
1372                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1373                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1374                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1375                                          i, r_cfg->etscfg.prioritytable[i],
1376                                          r_cfg->etscfg.tcbwtable[i],
1377                                          r_cfg->etscfg.tsatable[i]);
1378                         }
1379                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1380                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1381                                          i, r_cfg->etsrec.prioritytable[i],
1382                                          r_cfg->etsrec.tcbwtable[i],
1383                                          r_cfg->etsrec.tsatable[i]);
1384                         }
1385                         dev_info(&pf->pdev->dev,
1386                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1387                                  r_cfg->pfc.willing,
1388                                  r_cfg->pfc.mbc,
1389                                  r_cfg->pfc.pfccap,
1390                                  r_cfg->pfc.pfcenable);
1391                         dev_info(&pf->pdev->dev,
1392                                  "remote port app_table: num_apps=%d\n",
1393                                  r_cfg->numapps);
1394                         for (i = 0; i < r_cfg->numapps; i++) {
1395                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1396                                          i, r_cfg->app[i].priority,
1397                                          r_cfg->app[i].selector,
1398                                          r_cfg->app[i].protocolid);
1399                         }
1400                 } else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
1401                         int cluster_id, table_id;
1402                         int index, ret;
1403                         u16 buff_len = 4096;
1404                         u32 next_index;
1405                         u8 next_table;
1406                         u8 *buff;
1407                         u16 rlen;
1408
1409                         cnt = sscanf(&cmd_buf[18], "%i %i %i",
1410                                      &cluster_id, &table_id, &index);
1411                         if (cnt != 3) {
1412                                 dev_info(&pf->pdev->dev,
1413                                          "dump debug fwdata <cluster_id> <table_id> <index>\n");
1414                                 goto command_write_done;
1415                         }
1416
1417                         dev_info(&pf->pdev->dev,
1418                                  "AQ debug dump fwdata params %x %x %x %x\n",
1419                                  cluster_id, table_id, index, buff_len);
1420                         buff = kzalloc(buff_len, GFP_KERNEL);
1421                         if (!buff)
1422                                 goto command_write_done;
1423
1424                         ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
1425                                                  index, buff_len, buff, &rlen,
1426                                                  &next_table, &next_index,
1427                                                  NULL);
1428                         if (ret) {
1429                                 dev_info(&pf->pdev->dev,
1430                                          "debug dump fwdata AQ Failed %d 0x%x\n",
1431                                          ret, pf->hw.aq.asq_last_status);
1432                                 kfree(buff);
1433                                 buff = NULL;
1434                                 goto command_write_done;
1435                         }
1436                         dev_info(&pf->pdev->dev,
1437                                  "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
1438                                  rlen, next_table, next_index);
1439                         print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1440                                        DUMP_PREFIX_OFFSET, 16, 1,
1441                                        buff, rlen, true);
1442                         kfree(buff);
1443                         buff = NULL;
1444                 } else {
1445                         dev_info(&pf->pdev->dev,
1446                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1447                         dev_info(&pf->pdev->dev, "dump switch\n");
1448                         dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1449                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1450                         dev_info(&pf->pdev->dev, "dump port\n");
1451                         dev_info(&pf->pdev->dev,
1452                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1453                 }
1454
1455         } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1456                 u32 level;
1457                 cnt = sscanf(&cmd_buf[10], "%i", &level);
1458                 if (cnt) {
1459                         if (I40E_DEBUG_USER & level) {
1460                                 pf->hw.debug_mask = level;
1461                                 dev_info(&pf->pdev->dev,
1462                                          "set hw.debug_mask = 0x%08x\n",
1463                                          pf->hw.debug_mask);
1464                         }
1465                         pf->msg_enable = level;
1466                         dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1467                                  pf->msg_enable);
1468                 } else {
1469                         dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1470                                  pf->msg_enable);
1471                 }
1472         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1473                 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1474                 i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
1475
1476         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1477                 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1478                 i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));
1479
1480         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1481                 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1482                 i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));
1483
1484         } else if (strncmp(cmd_buf, "empr", 4) == 0) {
1485                 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
1486                 i40e_do_reset_safe(pf, BIT(__I40E_EMP_RESET_REQUESTED));
1487
1488         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1489                 u32 address;
1490                 u32 value;
1491                 cnt = sscanf(&cmd_buf[4], "%i", &address);
1492                 if (cnt != 1) {
1493                         dev_info(&pf->pdev->dev, "read <reg>\n");
1494                         goto command_write_done;
1495                 }
1496
1497                 /* check the range on address */
1498                 if (address >= I40E_MAX_REGISTER) {
1499                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n",
1500                                  address);
1501                         goto command_write_done;
1502                 }
1503
1504                 value = rd32(&pf->hw, address);
1505                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1506                          address, value);
1507
1508         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1509                 u32 address, value;
1510                 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1511                 if (cnt != 2) {
1512                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1513                         goto command_write_done;
1514                 }
1515
1516                 /* check the range on address */
1517                 if (address >= I40E_MAX_REGISTER) {
1518                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n",
1519                                  address);
1520                         goto command_write_done;
1521                 }
1522                 wr32(&pf->hw, address, value);
1523                 value = rd32(&pf->hw, address);
1524                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1525                          address, value);
1526         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1527                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1528                         cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1529                         if (cnt == 0) {
1530                                 int i;
1531                                 for (i = 0; i < pf->num_alloc_vsi; i++)
1532                                         i40e_vsi_reset_stats(pf->vsi[i]);
1533                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1534                         } else if (cnt == 1) {
1535                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1536                                 if (!vsi) {
1537                                         dev_info(&pf->pdev->dev,
1538                                                  "clear_stats vsi: bad vsi %d\n",
1539                                                  vsi_seid);
1540                                         goto command_write_done;
1541                                 }
1542                                 i40e_vsi_reset_stats(vsi);
1543                                 dev_info(&pf->pdev->dev,
1544                                          "vsi clear stats called for vsi %d\n",
1545                                          vsi_seid);
1546                         } else {
1547                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1548                         }
1549                 } else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1550                         if (pf->hw.partition_id == 1) {
1551                                 i40e_pf_reset_stats(pf);
1552                                 dev_info(&pf->pdev->dev, "port stats cleared\n");
1553                         } else {
1554                                 dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1555                         }
1556                 } else {
1557                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
1558                 }
1559         } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1560                 struct i40e_aq_desc *desc;
1561                 i40e_status ret;
1562
1563                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1564                 if (!desc)
1565                         goto command_write_done;
1566                 cnt = sscanf(&cmd_buf[11],
1567                              "%hi %hi %hi %hi %i %i %i %i %i %i",
1568                              &desc->flags,
1569                              &desc->opcode, &desc->datalen, &desc->retval,
1570                              &desc->cookie_high, &desc->cookie_low,
1571                              &desc->params.internal.param0,
1572                              &desc->params.internal.param1,
1573                              &desc->params.internal.param2,
1574                              &desc->params.internal.param3);
1575                 if (cnt != 10) {
1576                         dev_info(&pf->pdev->dev,
1577                                  "send aq_cmd: bad command string, cnt=%d\n",
1578                                  cnt);
1579                         kfree(desc);
1580                         desc = NULL;
1581                         goto command_write_done;
1582                 }
1583                 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1584                 if (!ret) {
1585                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1586                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1587                         dev_info(&pf->pdev->dev,
1588                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1589                                  desc->opcode, pf->hw.aq.asq_last_status);
1590                 } else {
1591                         dev_info(&pf->pdev->dev,
1592                                  "AQ command send failed Opcode %x Status: %d\n",
1593                                  desc->opcode, ret);
1594                 }
1595                 dev_info(&pf->pdev->dev,
1596                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1597                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1598                          desc->cookie_high, desc->cookie_low,
1599                          desc->params.internal.param0,
1600                          desc->params.internal.param1,
1601                          desc->params.internal.param2,
1602                          desc->params.internal.param3);
1603                 kfree(desc);
1604                 desc = NULL;
1605         } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1606                 struct i40e_aq_desc *desc;
1607                 i40e_status ret;
1608                 u16 buffer_len;
1609                 u8 *buff;
1610
1611                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1612                 if (!desc)
1613                         goto command_write_done;
1614                 cnt = sscanf(&cmd_buf[20],
1615                              "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1616                              &desc->flags,
1617                              &desc->opcode, &desc->datalen, &desc->retval,
1618                              &desc->cookie_high, &desc->cookie_low,
1619                              &desc->params.internal.param0,
1620                              &desc->params.internal.param1,
1621                              &desc->params.internal.param2,
1622                              &desc->params.internal.param3,
1623                              &buffer_len);
1624                 if (cnt != 11) {
1625                         dev_info(&pf->pdev->dev,
1626                                  "send indirect aq_cmd: bad command string, cnt=%d\n",
1627                                  cnt);
1628                         kfree(desc);
1629                         desc = NULL;
1630                         goto command_write_done;
1631                 }
1632                 /* Just stub a buffer big enough in case user messed up */
1633                 if (buffer_len == 0)
1634                         buffer_len = 1280;
1635
1636                 buff = kzalloc(buffer_len, GFP_KERNEL);
1637                 if (!buff) {
1638                         kfree(desc);
1639                         desc = NULL;
1640                         goto command_write_done;
1641                 }
1642                 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1643                 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1644                                             buffer_len, NULL);
1645                 if (!ret) {
1646                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1647                 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1648                         dev_info(&pf->pdev->dev,
1649                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1650                                  desc->opcode, pf->hw.aq.asq_last_status);
1651                 } else {
1652                         dev_info(&pf->pdev->dev,
1653                                  "AQ command send failed Opcode %x Status: %d\n",
1654                                  desc->opcode, ret);
1655                 }
1656                 dev_info(&pf->pdev->dev,
1657                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1658                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1659                          desc->cookie_high, desc->cookie_low,
1660                          desc->params.internal.param0,
1661                          desc->params.internal.param1,
1662                          desc->params.internal.param2,
1663                          desc->params.internal.param3);
1664                 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1665                                DUMP_PREFIX_OFFSET, 16, 1,
1666                                buff, buffer_len, true);
1667                 kfree(buff);
1668                 buff = NULL;
1669                 kfree(desc);
1670                 desc = NULL;
1671         } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1672                    (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
1673                 struct i40e_fdir_filter fd_data;
1674                 u16 packet_len, i, j = 0;
1675                 char *asc_packet;
1676                 u8 *raw_packet;
1677                 bool add = false;
1678                 int ret;
1679
1680                 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
1681                         goto command_write_done;
1682
1683                 if (strncmp(cmd_buf, "add", 3) == 0)
1684                         add = true;
1685
1686                 if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED))
1687                         goto command_write_done;
1688
1689                 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1690                                      GFP_KERNEL);
1691                 if (!asc_packet)
1692                         goto command_write_done;
1693
1694                 raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1695                                      GFP_KERNEL);
1696
1697                 if (!raw_packet) {
1698                         kfree(asc_packet);
1699                         asc_packet = NULL;
1700                         goto command_write_done;
1701                 }
1702
1703                 cnt = sscanf(&cmd_buf[13],
1704                              "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s",
1705                              &fd_data.q_index,
1706                              &fd_data.flex_off, &fd_data.pctype,
1707                              &fd_data.dest_vsi, &fd_data.dest_ctl,
1708                              &fd_data.fd_status, &fd_data.cnt_index,
1709                              &fd_data.fd_id, &packet_len, asc_packet);
1710                 if (cnt != 10) {
1711                         dev_info(&pf->pdev->dev,
1712                                  "program fd_filter: bad command string, cnt=%d\n",
1713                                  cnt);
1714                         kfree(asc_packet);
1715                         asc_packet = NULL;
1716                         kfree(raw_packet);
1717                         goto command_write_done;
1718                 }
1719
1720                 /* fix packet length if user entered 0 */
1721                 if (packet_len == 0)
1722                         packet_len = I40E_FDIR_MAX_RAW_PACKET_SIZE;
1723
1724                 /* make sure to check the max as well */
1725                 packet_len = min_t(u16,
1726                                    packet_len, I40E_FDIR_MAX_RAW_PACKET_SIZE);
1727
1728                 for (i = 0; i < packet_len; i++) {
1729                         sscanf(&asc_packet[j], "%2hhx ",
1730                                &raw_packet[i]);
1731                         j += 3;
1732                 }
1733                 dev_info(&pf->pdev->dev, "FD raw packet dump\n");
1734                 print_hex_dump(KERN_INFO, "FD raw packet: ",
1735                                DUMP_PREFIX_OFFSET, 16, 1,
1736                                raw_packet, packet_len, true);
1737                 ret = i40e_program_fdir_filter(&fd_data, raw_packet, pf, add);
1738                 if (!ret) {
1739                         dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1740                 } else {
1741                         dev_info(&pf->pdev->dev,
1742                                  "Filter command send failed %d\n", ret);
1743                 }
1744                 kfree(raw_packet);
1745                 raw_packet = NULL;
1746                 kfree(asc_packet);
1747                 asc_packet = NULL;
1748         } else if (strncmp(cmd_buf, "fd-atr off", 10) == 0) {
1749                 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, false);
1750         } else if (strncmp(cmd_buf, "fd-atr on", 9) == 0) {
1751                 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, true);
1752         } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1753                 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1754                          i40e_get_current_fd_count(pf));
1755         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1756                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1757                         int ret;
1758                         ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1759                         if (ret) {
1760                                 dev_info(&pf->pdev->dev,
1761                                          "Stop LLDP AQ command failed =0x%x\n",
1762                                          pf->hw.aq.asq_last_status);
1763                                 goto command_write_done;
1764                         }
1765                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1766                                                 pf->hw.mac.addr,
1767                                                 I40E_ETH_P_LLDP, 0,
1768                                                 pf->vsi[pf->lan_vsi]->seid,
1769                                                 0, true, NULL, NULL);
1770                         if (ret) {
1771                                 dev_info(&pf->pdev->dev,
1772                                         "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1773                                         __func__, pf->hw.aq.asq_last_status);
1774                                 goto command_write_done;
1775                         }
1776 #ifdef CONFIG_I40E_DCB
1777                         pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1778                                        DCB_CAP_DCBX_VER_IEEE;
1779 #endif /* CONFIG_I40E_DCB */
1780                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1781                         int ret;
1782                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1783                                                 pf->hw.mac.addr,
1784                                                 I40E_ETH_P_LLDP, 0,
1785                                                 pf->vsi[pf->lan_vsi]->seid,
1786                                                 0, false, NULL, NULL);
1787                         if (ret) {
1788                                 dev_info(&pf->pdev->dev,
1789                                         "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1790                                         __func__, pf->hw.aq.asq_last_status);
1791                                 /* Continue and start FW LLDP anyways */
1792                         }
1793
1794                         ret = i40e_aq_start_lldp(&pf->hw, NULL);
1795                         if (ret) {
1796                                 dev_info(&pf->pdev->dev,
1797                                          "Start LLDP AQ command failed =0x%x\n",
1798                                          pf->hw.aq.asq_last_status);
1799                                 goto command_write_done;
1800                         }
1801 #ifdef CONFIG_I40E_DCB
1802                         pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1803                                        DCB_CAP_DCBX_VER_IEEE;
1804 #endif /* CONFIG_I40E_DCB */
1805                 } else if (strncmp(&cmd_buf[5],
1806                            "get local", 9) == 0) {
1807                         u16 llen, rlen;
1808                         int ret;
1809                         u8 *buff;
1810                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1811                         if (!buff)
1812                                 goto command_write_done;
1813
1814                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1815                                                    I40E_AQ_LLDP_MIB_LOCAL,
1816                                                    buff, I40E_LLDPDU_SIZE,
1817                                                    &llen, &rlen, NULL);
1818                         if (ret) {
1819                                 dev_info(&pf->pdev->dev,
1820                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1821                                          pf->hw.aq.asq_last_status);
1822                                 kfree(buff);
1823                                 buff = NULL;
1824                                 goto command_write_done;
1825                         }
1826                         dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1827                         print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1828                                        DUMP_PREFIX_OFFSET, 16, 1,
1829                                        buff, I40E_LLDPDU_SIZE, true);
1830                         kfree(buff);
1831                         buff = NULL;
1832                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1833                         u16 llen, rlen;
1834                         int ret;
1835                         u8 *buff;
1836                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1837                         if (!buff)
1838                                 goto command_write_done;
1839
1840                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1841                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1842                                         I40E_AQ_LLDP_MIB_REMOTE,
1843                                         buff, I40E_LLDPDU_SIZE,
1844                                         &llen, &rlen, NULL);
1845                         if (ret) {
1846                                 dev_info(&pf->pdev->dev,
1847                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1848                                          pf->hw.aq.asq_last_status);
1849                                 kfree(buff);
1850                                 buff = NULL;
1851                                 goto command_write_done;
1852                         }
1853                         dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1854                         print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1855                                        DUMP_PREFIX_OFFSET, 16, 1,
1856                                        buff, I40E_LLDPDU_SIZE, true);
1857                         kfree(buff);
1858                         buff = NULL;
1859                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1860                         int ret;
1861                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1862                                                                 true, NULL);
1863                         if (ret) {
1864                                 dev_info(&pf->pdev->dev,
1865                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1866                                          pf->hw.aq.asq_last_status);
1867                                 goto command_write_done;
1868                         }
1869                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1870                         int ret;
1871                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1872                                                                 false, NULL);
1873                         if (ret) {
1874                                 dev_info(&pf->pdev->dev,
1875                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1876                                          pf->hw.aq.asq_last_status);
1877                                 goto command_write_done;
1878                         }
1879                 }
1880         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1881                 u16 buffer_len, bytes;
1882                 u16 module;
1883                 u32 offset;
1884                 u16 *buff;
1885                 int ret;
1886
1887                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1888                              &module, &offset, &buffer_len);
1889                 if (cnt == 0) {
1890                         module = 0;
1891                         offset = 0;
1892                         buffer_len = 0;
1893                 } else if (cnt == 1) {
1894                         offset = 0;
1895                         buffer_len = 0;
1896                 } else if (cnt == 2) {
1897                         buffer_len = 0;
1898                 } else if (cnt > 3) {
1899                         dev_info(&pf->pdev->dev,
1900                                  "nvm read: bad command string, cnt=%d\n", cnt);
1901                         goto command_write_done;
1902                 }
1903
1904                 /* set the max length */
1905                 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1906
1907                 bytes = 2 * buffer_len;
1908
1909                 /* read at least 1k bytes, no more than 4kB */
1910                 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1911                 buff = kzalloc(bytes, GFP_KERNEL);
1912                 if (!buff)
1913                         goto command_write_done;
1914
1915                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1916                 if (ret) {
1917                         dev_info(&pf->pdev->dev,
1918                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1919                                  ret, pf->hw.aq.asq_last_status);
1920                         kfree(buff);
1921                         goto command_write_done;
1922                 }
1923
1924                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1925                                        bytes, (u8 *)buff, true, NULL);
1926                 i40e_release_nvm(&pf->hw);
1927                 if (ret) {
1928                         dev_info(&pf->pdev->dev,
1929                                  "Read NVM AQ failed err=%d status=0x%x\n",
1930                                  ret, pf->hw.aq.asq_last_status);
1931                 } else {
1932                         dev_info(&pf->pdev->dev,
1933                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1934                                  module, offset, buffer_len);
1935                         if (bytes)
1936                                 print_hex_dump(KERN_INFO, "NVM Dump: ",
1937                                         DUMP_PREFIX_OFFSET, 16, 2,
1938                                         buff, bytes, true);
1939                 }
1940                 kfree(buff);
1941                 buff = NULL;
1942         } else {
1943                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1944                 dev_info(&pf->pdev->dev, "available commands\n");
1945                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1946                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1947                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1948                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1949                 dev_info(&pf->pdev->dev, "  add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1950                 dev_info(&pf->pdev->dev, "  del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1951                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1952                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1953                 dev_info(&pf->pdev->dev, "  dump switch\n");
1954                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1955                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1956                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1957                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1958                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1959                 dev_info(&pf->pdev->dev, "  dump debug fwdata <cluster_id> <table_id> <index>\n");
1960                 dev_info(&pf->pdev->dev, "  msg_enable [level]\n");
1961                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1962                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1963                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1964                 dev_info(&pf->pdev->dev, "  clear_stats port\n");
1965                 dev_info(&pf->pdev->dev, "  pfr\n");
1966                 dev_info(&pf->pdev->dev, "  corer\n");
1967                 dev_info(&pf->pdev->dev, "  globr\n");
1968                 dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1969                 dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1970                 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");
1971                 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");
1972                 dev_info(&pf->pdev->dev, "  fd-atr off\n");
1973                 dev_info(&pf->pdev->dev, "  fd-atr on\n");
1974                 dev_info(&pf->pdev->dev, "  fd current cnt");
1975                 dev_info(&pf->pdev->dev, "  lldp start\n");
1976                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1977                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1978                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1979                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1980                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1981                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1982         }
1983
1984 command_write_done:
1985         kfree(cmd_buf);
1986         cmd_buf = NULL;
1987         return count;
1988 }
1989
1990 static const struct file_operations i40e_dbg_command_fops = {
1991         .owner = THIS_MODULE,
1992         .open =  simple_open,
1993         .read =  i40e_dbg_command_read,
1994         .write = i40e_dbg_command_write,
1995 };
1996
1997 /**************************************************************
1998  * netdev_ops
1999  * The netdev_ops entry in debugfs is for giving the driver commands
2000  * to be executed from the netdev operations.
2001  **************************************************************/
2002 static char i40e_dbg_netdev_ops_buf[256] = "";
2003
2004 /**
2005  * i40e_dbg_netdev_ops - read for netdev_ops datum
2006  * @filp: the opened file
2007  * @buffer: where to write the data for the user to read
2008  * @count: the size of the user's buffer
2009  * @ppos: file position offset
2010  **/
2011 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
2012                                         size_t count, loff_t *ppos)
2013 {
2014         struct i40e_pf *pf = filp->private_data;
2015         int bytes_not_copied;
2016         int buf_size = 256;
2017         char *buf;
2018         int len;
2019
2020         /* don't allow partal reads */
2021         if (*ppos != 0)
2022                 return 0;
2023         if (count < buf_size)
2024                 return -ENOSPC;
2025
2026         buf = kzalloc(buf_size, GFP_KERNEL);
2027         if (!buf)
2028                 return -ENOSPC;
2029
2030         len = snprintf(buf, buf_size, "%s: %s\n",
2031                        pf->vsi[pf->lan_vsi]->netdev->name,
2032                        i40e_dbg_netdev_ops_buf);
2033
2034         bytes_not_copied = copy_to_user(buffer, buf, len);
2035         kfree(buf);
2036
2037         if (bytes_not_copied < 0)
2038                 return bytes_not_copied;
2039
2040         *ppos = len;
2041         return len;
2042 }
2043
2044 /**
2045  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
2046  * @filp: the opened file
2047  * @buffer: where to find the user's data
2048  * @count: the length of the user's data
2049  * @ppos: file position offset
2050  **/
2051 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
2052                                          const char __user *buffer,
2053                                          size_t count, loff_t *ppos)
2054 {
2055         struct i40e_pf *pf = filp->private_data;
2056         int bytes_not_copied;
2057         struct i40e_vsi *vsi;
2058         char *buf_tmp;
2059         int vsi_seid;
2060         int i, cnt;
2061
2062         /* don't allow partial writes */
2063         if (*ppos != 0)
2064                 return 0;
2065         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
2066                 return -ENOSPC;
2067
2068         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
2069         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
2070                                           buffer, count);
2071         if (bytes_not_copied < 0)
2072                 return bytes_not_copied;
2073         else if (bytes_not_copied > 0)
2074                 count -= bytes_not_copied;
2075         i40e_dbg_netdev_ops_buf[count] = '\0';
2076
2077         buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
2078         if (buf_tmp) {
2079                 *buf_tmp = '\0';
2080                 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
2081         }
2082
2083         if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
2084                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2085                 if (cnt != 1) {
2086                         dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
2087                         goto netdev_ops_write_done;
2088                 }
2089                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2090                 if (!vsi) {
2091                         dev_info(&pf->pdev->dev,
2092                                  "tx_timeout: VSI %d not found\n", vsi_seid);
2093                 } else if (!vsi->netdev) {
2094                         dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n",
2095                                  vsi_seid);
2096                 } else if (test_bit(__I40E_DOWN, &vsi->state)) {
2097                         dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n",
2098                                  vsi_seid);
2099                 } else if (rtnl_trylock()) {
2100                         vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
2101                         rtnl_unlock();
2102                         dev_info(&pf->pdev->dev, "tx_timeout called\n");
2103                 } else {
2104                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2105                 }
2106         } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
2107                 int mtu;
2108                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
2109                              &vsi_seid, &mtu);
2110                 if (cnt != 2) {
2111                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
2112                         goto netdev_ops_write_done;
2113                 }
2114                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2115                 if (!vsi) {
2116                         dev_info(&pf->pdev->dev,
2117                                  "change_mtu: VSI %d not found\n", vsi_seid);
2118                 } else if (!vsi->netdev) {
2119                         dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
2120                                  vsi_seid);
2121                 } else if (rtnl_trylock()) {
2122                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
2123                                                                 mtu);
2124                         rtnl_unlock();
2125                         dev_info(&pf->pdev->dev, "change_mtu called\n");
2126                 } else {
2127                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2128                 }
2129
2130         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
2131                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2132                 if (cnt != 1) {
2133                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
2134                         goto netdev_ops_write_done;
2135                 }
2136                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2137                 if (!vsi) {
2138                         dev_info(&pf->pdev->dev,
2139                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
2140                 } else if (!vsi->netdev) {
2141                         dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
2142                                  vsi_seid);
2143                 } else if (rtnl_trylock()) {
2144                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
2145                         rtnl_unlock();
2146                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
2147                 } else {
2148                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2149                 }
2150
2151         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
2152                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
2153                 if (cnt != 1) {
2154                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
2155                         goto netdev_ops_write_done;
2156                 }
2157                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2158                 if (!vsi) {
2159                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
2160                                  vsi_seid);
2161                 } else if (!vsi->netdev) {
2162                         dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
2163                                  vsi_seid);
2164                 } else {
2165                         for (i = 0; i < vsi->num_q_vectors; i++)
2166                                 napi_schedule(&vsi->q_vectors[i]->napi);
2167                         dev_info(&pf->pdev->dev, "napi called\n");
2168                 }
2169         } else {
2170                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
2171                          i40e_dbg_netdev_ops_buf);
2172                 dev_info(&pf->pdev->dev, "available commands\n");
2173                 dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
2174                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
2175                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
2176                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
2177         }
2178 netdev_ops_write_done:
2179         return count;
2180 }
2181
2182 static const struct file_operations i40e_dbg_netdev_ops_fops = {
2183         .owner = THIS_MODULE,
2184         .open = simple_open,
2185         .read = i40e_dbg_netdev_ops_read,
2186         .write = i40e_dbg_netdev_ops_write,
2187 };
2188
2189 /**
2190  * i40e_dbg_pf_init - setup the debugfs directory for the PF
2191  * @pf: the PF that is starting up
2192  **/
2193 void i40e_dbg_pf_init(struct i40e_pf *pf)
2194 {
2195         struct dentry *pfile;
2196         const char *name = pci_name(pf->pdev);
2197         const struct device *dev = &pf->pdev->dev;
2198
2199         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
2200         if (!pf->i40e_dbg_pf)
2201                 return;
2202
2203         pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
2204                                     &i40e_dbg_command_fops);
2205         if (!pfile)
2206                 goto create_failed;
2207
2208         pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2209                                     &i40e_dbg_dump_fops);
2210         if (!pfile)
2211                 goto create_failed;
2212
2213         pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
2214                                     &i40e_dbg_netdev_ops_fops);
2215         if (!pfile)
2216                 goto create_failed;
2217
2218         return;
2219
2220 create_failed:
2221         dev_info(dev, "debugfs dir/file for %s failed\n", name);
2222         debugfs_remove_recursive(pf->i40e_dbg_pf);
2223         return;
2224 }
2225
2226 /**
2227  * i40e_dbg_pf_exit - clear out the PF's debugfs entries
2228  * @pf: the PF that is stopping
2229  **/
2230 void i40e_dbg_pf_exit(struct i40e_pf *pf)
2231 {
2232         debugfs_remove_recursive(pf->i40e_dbg_pf);
2233         pf->i40e_dbg_pf = NULL;
2234
2235         kfree(i40e_dbg_dump_buf);
2236         i40e_dbg_dump_buf = NULL;
2237 }
2238
2239 /**
2240  * i40e_dbg_init - start up debugfs for the driver
2241  **/
2242 void i40e_dbg_init(void)
2243 {
2244         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2245         if (!i40e_dbg_root)
2246                 pr_info("init of debugfs failed\n");
2247 }
2248
2249 /**
2250  * i40e_dbg_exit - clean out the driver's debugfs entries
2251  **/
2252 void i40e_dbg_exit(void)
2253 {
2254         debugfs_remove_recursive(i40e_dbg_root);
2255         i40e_dbg_root = NULL;
2256 }
2257
2258 #endif /* CONFIG_DEBUG_FS */