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

   1 /*******************************************************************************
   2  *
   3  * Intel Ethernet Controller XL710 Family Linux Driver
   4  * Copyright(c) 2013 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 with
  16  * this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * The full GNU General Public License is included in this distribution in
  20  * the file called "COPYING".
  21  *
  22  * Contact Information:
  23  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  24  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  25  *
  26  ******************************************************************************/
  27
  28 #ifdef CONFIG_DEBUG_FS
  29
  30 #include <linux/fs.h>
  31 #include <linux/debugfs.h>
  32
  33 #include "i40e.h"
  34
  35 static struct dentry *i40e_dbg_root;
  36
  37 /**
  38  * i40e_dbg_find_vsi - searches for the vsi with the given seid
  39  * @pf - the pf structure to search for the vsi
  40  * @seid - seid of the vsi it is searching for
  41  **/
  42 static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
  43 {
  44         int i;
  45
  46         if (seid < 0)
  47                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
  48         else
  49                 for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
  50                         if (pf->vsi[i] && (pf->vsi[i]->seid == seid))
  51                                 return pf->vsi[i];
  52
  53         return NULL;
  54 }
  55
  56 /**
  57  * i40e_dbg_find_veb - searches for the veb with the given seid
  58  * @pf - the pf structure to search for the veb
  59  * @seid - seid of the veb it is searching for
  60  **/
  61 static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
  62 {
  63         int i;
  64
  65         if ((seid < I40E_BASE_VEB_SEID) ||
  66             (seid > (I40E_BASE_VEB_SEID + I40E_MAX_VEB)))
  67                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
  68         else
  69                 for (i = 0; i < I40E_MAX_VEB; i++)
  70                         if (pf->veb[i] && pf->veb[i]->seid == seid)
  71                                 return pf->veb[i];
  72         return NULL;
  73 }
  74
  75 /**************************************************************
  76  * dump
  77  * The dump entry in debugfs is for getting a data snapshow of
  78  * the driver's current configuration and runtime details.
  79  * When the filesystem entry is written, a snapshot is taken.
  80  * When the entry is read, the most recent snapshot data is dumped.
  81  **************************************************************/
  82 static char *i40e_dbg_dump_buf;
  83 static ssize_t i40e_dbg_dump_data_len;
  84 static ssize_t i40e_dbg_dump_buffer_len;
  85
  86 /**
  87  * i40e_dbg_dump_read - read the dump data
  88  * @filp: the opened file
  89  * @buffer: where to write the data for the user to read
  90  * @count: the size of the user's buffer
  91  * @ppos: file position offset
  92  **/
  93 static ssize_t i40e_dbg_dump_read(struct file *filp, char __user *buffer,
  94                                   size_t count, loff_t *ppos)
  95 {
  96         int bytes_not_copied;
  97         int len;
  98
  99         /* is *ppos bigger than the available data? */
 100         if (*ppos >= i40e_dbg_dump_data_len || !i40e_dbg_dump_buf)
 101                 return 0;
 102
 103         /* be sure to not read beyond the end of available data */
 104         len = min_t(int, count, (i40e_dbg_dump_data_len - *ppos));
 105
 106         bytes_not_copied = copy_to_user(buffer, &i40e_dbg_dump_buf[*ppos], len);
 107         if (bytes_not_copied < 0)
 108                 return bytes_not_copied;
 109
 110         *ppos += len;
 111         return len;
 112 }
 113
 114 /**
 115  * i40e_dbg_prep_dump_buf
 116  * @pf: the pf we're working with
 117  * @buflen: the desired buffer length
 118  *
 119  * Return positive if success, 0 if failed
 120  **/
 121 static int i40e_dbg_prep_dump_buf(struct i40e_pf *pf, int buflen)
 122 {
 123         /* if not already big enough, prep for re alloc */
 124         if (i40e_dbg_dump_buffer_len && i40e_dbg_dump_buffer_len < buflen) {
 125                 kfree(i40e_dbg_dump_buf);
 126                 i40e_dbg_dump_buffer_len = 0;
 127                 i40e_dbg_dump_buf = NULL;
 128         }
 129
 130         /* get a new buffer if needed */
 131         if (!i40e_dbg_dump_buf) {
 132                 i40e_dbg_dump_buf = kzalloc(buflen, GFP_KERNEL);
 133                 if (i40e_dbg_dump_buf != NULL)
 134                         i40e_dbg_dump_buffer_len = buflen;
 135         }
 136
 137         return i40e_dbg_dump_buffer_len;
 138 }
 139
 140 /**
 141  * i40e_dbg_dump_write - trigger a datadump snapshot
 142  * @filp: the opened file
 143  * @buffer: where to find the user's data
 144  * @count: the length of the user's data
 145  * @ppos: file position offset
 146  *
 147  * Any write clears the stats
 148  **/
 149 static ssize_t i40e_dbg_dump_write(struct file *filp,
 150                                    const char __user *buffer,
 151                                    size_t count, loff_t *ppos)
 152 {
 153         struct i40e_pf *pf = filp->private_data;
 154         char dump_request_buf[16];
 155         bool seid_found = false;
 156         int bytes_not_copied;
 157         long seid = -1;
 158         int buflen = 0;
 159         int i, ret;
 160         int len;
 161         u8 *p;
 162
 163         /* don't allow partial writes */
 164         if (*ppos != 0)
 165                 return 0;
 166         if (count >= sizeof(dump_request_buf))
 167                 return -ENOSPC;
 168
 169         bytes_not_copied = copy_from_user(dump_request_buf, buffer, count);
 170         if (bytes_not_copied < 0)
 171                 return bytes_not_copied;
 172         if (bytes_not_copied > 0)
 173                 count -= bytes_not_copied;
 174         dump_request_buf[count] = '\0';
 175
 176         /* decode the SEID given to be dumped */
 177         ret = kstrtol(dump_request_buf, 0, &seid);
 178         if (ret < 0) {
 179                 dev_info(&pf->pdev->dev, "bad seid value '%s'\n",
 180                          dump_request_buf);
 181         } else if (seid == 0) {
 182                 seid_found = true;
 183
 184                 kfree(i40e_dbg_dump_buf);
 185                 i40e_dbg_dump_buffer_len = 0;
 186                 i40e_dbg_dump_data_len = 0;
 187                 i40e_dbg_dump_buf = NULL;
 188                 dev_info(&pf->pdev->dev, "debug buffer freed\n");
 189
 190         } else if (seid == pf->pf_seid || seid == 1) {
 191                 seid_found = true;
 192
 193                 buflen = sizeof(struct i40e_pf);
 194                 buflen += (sizeof(struct i40e_aq_desc)
 195                      * (pf->hw.aq.num_arq_entries + pf->hw.aq.num_asq_entries));
 196
 197                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 198                         p = i40e_dbg_dump_buf;
 199
 200                         len = sizeof(struct i40e_pf);
 201                         memcpy(p, pf, len);
 202                         p += len;
 203
 204                         len = (sizeof(struct i40e_aq_desc)
 205                                         * pf->hw.aq.num_asq_entries);
 206                         memcpy(p, pf->hw.aq.asq.desc, len);
 207                         p += len;
 208
 209                         len = (sizeof(struct i40e_aq_desc)
 210                                         * pf->hw.aq.num_arq_entries);
 211                         memcpy(p, pf->hw.aq.arq.desc, len);
 212                         p += len;
 213
 214                         i40e_dbg_dump_data_len = buflen;
 215                         dev_info(&pf->pdev->dev,
 216                                  "PF seid %ld dumped %d bytes\n",
 217                                  seid, (int)i40e_dbg_dump_data_len);
 218                 }
 219         } else if (seid >= I40E_BASE_VSI_SEID) {
 220                 struct i40e_vsi *vsi = NULL;
 221                 struct i40e_mac_filter *f;
 222                 int filter_count = 0;
 223
 224                 mutex_lock(&pf->switch_mutex);
 225                 vsi = i40e_dbg_find_vsi(pf, seid);
 226                 if (!vsi) {
 227                         mutex_unlock(&pf->switch_mutex);
 228                         goto write_exit;
 229                 }
 230
 231                 buflen = sizeof(struct i40e_vsi);
 232                 buflen += sizeof(struct i40e_q_vector) * vsi->num_q_vectors;
 233                 buflen += sizeof(struct i40e_ring) * 2 * vsi->num_queue_pairs;
 234                 buflen += sizeof(struct i40e_tx_buffer) * vsi->num_queue_pairs;
 235                 buflen += sizeof(struct i40e_rx_buffer) * vsi->num_queue_pairs;
 236                 list_for_each_entry(f, &vsi->mac_filter_list, list)
 237                         filter_count++;
 238                 buflen += sizeof(struct i40e_mac_filter) * filter_count;
 239
 240                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 241                         p = i40e_dbg_dump_buf;
 242                         seid_found = true;
 243
 244                         len = sizeof(struct i40e_vsi);
 245                         memcpy(p, vsi, len);
 246                         p += len;
 247
 248                         len = (sizeof(struct i40e_q_vector)
 249                                 * vsi->num_q_vectors);
 250                         memcpy(p, vsi->q_vectors, len);
 251                         p += len;
 252
 253                         len = (sizeof(struct i40e_ring) * vsi->num_queue_pairs);
 254                         memcpy(p, vsi->tx_rings, len);
 255                         p += len;
 256                         memcpy(p, vsi->rx_rings, len);
 257                         p += len;
 258
 259                         for (i = 0; i < vsi->num_queue_pairs; i++) {
 260                                 len = sizeof(struct i40e_tx_buffer);
 261                                 memcpy(p, vsi->tx_rings[i].tx_bi, len);
 262                                 p += len;
 263                         }
 264                         for (i = 0; i < vsi->num_queue_pairs; i++) {
 265                                 len = sizeof(struct i40e_rx_buffer);
 266                                 memcpy(p, vsi->rx_rings[i].rx_bi, len);
 267                                 p += len;
 268                         }
 269
 270                         /* macvlan filter list */
 271                         len = sizeof(struct i40e_mac_filter);
 272                         list_for_each_entry(f, &vsi->mac_filter_list, list) {
 273                                 memcpy(p, f, len);
 274                                 p += len;
 275                         }
 276
 277                         i40e_dbg_dump_data_len = buflen;
 278                         dev_info(&pf->pdev->dev,
 279                                  "VSI seid %ld dumped %d bytes\n",
 280                                  seid, (int)i40e_dbg_dump_data_len);
 281                 }
 282                 mutex_unlock(&pf->switch_mutex);
 283         } else if (seid >= I40E_BASE_VEB_SEID) {
 284                 struct i40e_veb *veb = NULL;
 285
 286                 mutex_lock(&pf->switch_mutex);
 287                 veb = i40e_dbg_find_veb(pf, seid);
 288                 if (!veb) {
 289                         mutex_unlock(&pf->switch_mutex);
 290                         goto write_exit;
 291                 }
 292
 293                 buflen = sizeof(struct i40e_veb);
 294                 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
 295                         seid_found = true;
 296                         memcpy(i40e_dbg_dump_buf, veb, buflen);
 297                         i40e_dbg_dump_data_len = buflen;
 298                         dev_info(&pf->pdev->dev,
 299                                  "VEB seid %ld dumped %d bytes\n",
 300                                  seid, (int)i40e_dbg_dump_data_len);
 301                 }
 302                 mutex_unlock(&pf->switch_mutex);
 303         }
 304
 305 write_exit:
 306         if (!seid_found)
 307                 dev_info(&pf->pdev->dev, "unknown seid %ld\n", seid);
 308
 309         return count;
 310 }
 311
 312 static const struct file_operations i40e_dbg_dump_fops = {
 313         .owner = THIS_MODULE,
 314         .open =  simple_open,
 315         .read =  i40e_dbg_dump_read,
 316         .write = i40e_dbg_dump_write,
 317 };
 318
 319 /**************************************************************
 320  * command
 321  * The command entry in debugfs is for giving the driver commands
 322  * to be executed - these may be for changing the internal switch
 323  * setup, adding or removing filters, or other things.  Many of
 324  * these will be useful for some forms of unit testing.
 325  **************************************************************/
 326 static char i40e_dbg_command_buf[256] = "hello world";
 327
 328 /**
 329  * i40e_dbg_command_read - read for command datum
 330  * @filp: the opened file
 331  * @buffer: where to write the data for the user to read
 332  * @count: the size of the user's buffer
 333  * @ppos: file position offset
 334  **/
 335 static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
 336                                      size_t count, loff_t *ppos)
 337 {
 338         struct i40e_pf *pf = filp->private_data;
 339         int bytes_not_copied;
 340         int buf_size = 256;
 341         char *buf;
 342         int len;
 343
 344         /* don't allow partial reads */
 345         if (*ppos != 0)
 346                 return 0;
 347         if (count < buf_size)
 348                 return -ENOSPC;
 349
 350         buf = kzalloc(buf_size, GFP_KERNEL);
 351         if (!buf)
 352                 return -ENOSPC;
 353
 354         len = snprintf(buf, buf_size, "%s: %s\n",
 355                        pf->vsi[pf->lan_vsi]->netdev->name,
 356                        i40e_dbg_command_buf);
 357
 358         bytes_not_copied = copy_to_user(buffer, buf, len);
 359         kfree(buf);
 360
 361         if (bytes_not_copied < 0)
 362                 return bytes_not_copied;
 363
 364         *ppos = len;
 365         return len;
 366 }
 367
 368 /**
 369  * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into pokem datum
 370  * @pf: the i40e_pf created in command write
 371  * @seid: the seid the user put in
 372  **/
 373 static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 374 {
 375         struct rtnl_link_stats64 *nstat;
 376         struct i40e_mac_filter *f;
 377         struct i40e_vsi *vsi;
 378         int i;
 379
 380         vsi = i40e_dbg_find_vsi(pf, seid);
 381         if (!vsi) {
 382                 dev_info(&pf->pdev->dev,
 383                          "dump %d: seid not found\n", seid);
 384                 return;
 385         }
 386         dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
 387         if (vsi->netdev)
 388                 dev_info(&pf->pdev->dev,
 389                          "    netdev: name = %s\n",
 390                          vsi->netdev->name);
 391         if (vsi->active_vlans)
 392                 dev_info(&pf->pdev->dev,
 393                          "    vlgrp: & = %p\n", vsi->active_vlans);
 394         dev_info(&pf->pdev->dev,
 395                  "    netdev_registered = %i, current_netdev_flags = 0x%04x, state = %li flags = 0x%08lx\n",
 396                  vsi->netdev_registered,
 397                  vsi->current_netdev_flags, vsi->state, vsi->flags);
 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         if (vsi->rx_rings) {
 488                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 489                         dev_info(&pf->pdev->dev,
 490                                  "    rx_rings[%i]: desc = %p\n",
 491                                  i, vsi->rx_rings[i].desc);
 492                         dev_info(&pf->pdev->dev,
 493                                  "    rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n",
 494                                  i, vsi->rx_rings[i].dev,
 495                                  vsi->rx_rings[i].netdev,
 496                                  vsi->rx_rings[i].rx_bi);
 497                         dev_info(&pf->pdev->dev,
 498                                  "    rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 499                                  i, vsi->rx_rings[i].state,
 500                                  vsi->rx_rings[i].queue_index,
 501                                  vsi->rx_rings[i].reg_idx);
 502                         dev_info(&pf->pdev->dev,
 503                                  "    rx_rings[%i]: rx_hdr_len = %d, rx_buf_len = %d, dtype = %d\n",
 504                                  i, vsi->rx_rings[i].rx_hdr_len,
 505                                  vsi->rx_rings[i].rx_buf_len,
 506                                  vsi->rx_rings[i].dtype);
 507                         dev_info(&pf->pdev->dev,
 508                                  "    rx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 509                                  i, vsi->rx_rings[i].hsplit,
 510                                  vsi->rx_rings[i].next_to_use,
 511                                  vsi->rx_rings[i].next_to_clean,
 512                                  vsi->rx_rings[i].ring_active);
 513                         dev_info(&pf->pdev->dev,
 514                                  "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
 515                                  i, vsi->rx_rings[i].rx_stats.packets,
 516                                  vsi->rx_rings[i].rx_stats.bytes,
 517                                  vsi->rx_rings[i].rx_stats.non_eop_descs);
 518                         dev_info(&pf->pdev->dev,
 519                                  "    rx_rings[%i]: rx_stats: alloc_rx_page_failed = %lld, alloc_rx_buff_failed = %lld\n",
 520                                  i,
 521                                  vsi->rx_rings[i].rx_stats.alloc_rx_page_failed,
 522                                 vsi->rx_rings[i].rx_stats.alloc_rx_buff_failed);
 523                         dev_info(&pf->pdev->dev,
 524                                  "    rx_rings[%i]: size = %i, dma = 0x%08lx\n",
 525                                  i, vsi->rx_rings[i].size,
 526                                  (long unsigned int)vsi->rx_rings[i].dma);
 527                         dev_info(&pf->pdev->dev,
 528                                  "    rx_rings[%i]: vsi = %p, q_vector = %p\n",
 529                                  i, vsi->rx_rings[i].vsi,
 530                                  vsi->rx_rings[i].q_vector);
 531                 }
 532         }
 533         if (vsi->tx_rings) {
 534                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 535                         dev_info(&pf->pdev->dev,
 536                                  "    tx_rings[%i]: desc = %p\n",
 537                                  i, vsi->tx_rings[i].desc);
 538                         dev_info(&pf->pdev->dev,
 539                                  "    tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n",
 540                                  i, vsi->tx_rings[i].dev,
 541                                  vsi->tx_rings[i].netdev,
 542                                  vsi->tx_rings[i].tx_bi);
 543                         dev_info(&pf->pdev->dev,
 544                                  "    tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
 545                                  i, vsi->tx_rings[i].state,
 546                                  vsi->tx_rings[i].queue_index,
 547                                  vsi->tx_rings[i].reg_idx);
 548                         dev_info(&pf->pdev->dev,
 549                                  "    tx_rings[%i]: dtype = %d\n",
 550                                  i, vsi->tx_rings[i].dtype);
 551                         dev_info(&pf->pdev->dev,
 552                                  "    tx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 553                                  i, vsi->tx_rings[i].hsplit,
 554                                  vsi->tx_rings[i].next_to_use,
 555                                  vsi->tx_rings[i].next_to_clean,
 556                                  vsi->tx_rings[i].ring_active);
 557                         dev_info(&pf->pdev->dev,
 558                                  "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 559                                  i, vsi->tx_rings[i].tx_stats.packets,
 560                                  vsi->tx_rings[i].tx_stats.bytes,
 561                                  vsi->tx_rings[i].tx_stats.restart_queue);
 562                         dev_info(&pf->pdev->dev,
 563                                  "    tx_rings[%i]: tx_stats: tx_busy = %lld, completed = %lld, tx_done_old = %lld\n",
 564                                  i,
 565                                  vsi->tx_rings[i].tx_stats.tx_busy,
 566                                  vsi->tx_rings[i].tx_stats.completed,
 567                                  vsi->tx_rings[i].tx_stats.tx_done_old);
 568                         dev_info(&pf->pdev->dev,
 569                                  "    tx_rings[%i]: size = %i, dma = 0x%08lx\n",
 570                                  i, vsi->tx_rings[i].size,
 571                                  (long unsigned int)vsi->tx_rings[i].dma);
 572                         dev_info(&pf->pdev->dev,
 573                                  "    tx_rings[%i]: vsi = %p, q_vector = %p\n",
 574                                  i, vsi->tx_rings[i].vsi,
 575                                  vsi->tx_rings[i].q_vector);
 576                         dev_info(&pf->pdev->dev,
 577                                  "    tx_rings[%i]: DCB tc = %d\n",
 578                                  i, vsi->tx_rings[i].dcb_tc);
 579                 }
 580         }
 581         dev_info(&pf->pdev->dev,
 582                  "    work_limit = %d, rx_itr_setting = %d (%s), tx_itr_setting = %d (%s)\n",
 583                  vsi->work_limit, vsi->rx_itr_setting,
 584                  ITR_IS_DYNAMIC(vsi->rx_itr_setting) ? "dynamic" : "fixed",
 585                  vsi->tx_itr_setting,
 586                  ITR_IS_DYNAMIC(vsi->tx_itr_setting) ? "dynamic" : "fixed");
 587         dev_info(&pf->pdev->dev,
 588                  "    max_frame = %d, rx_hdr_len = %d, rx_buf_len = %d dtype = %d\n",
 589                  vsi->max_frame, vsi->rx_hdr_len, vsi->rx_buf_len, vsi->dtype);
 590         if (vsi->q_vectors) {
 591                 for (i = 0; i < vsi->num_q_vectors; i++) {
 592                         dev_info(&pf->pdev->dev,
 593                                  "    q_vectors[%i]: base index = %ld\n",
 594                                  i, ((long int)*vsi->q_vectors[i].rx.ring-
 595                                         (long int)*vsi->q_vectors[0].rx.ring)/
 596                                         sizeof(struct i40e_ring));
 597                 }
 598         }
 599         dev_info(&pf->pdev->dev,
 600                  "    num_q_vectors = %i, base_vector = %i\n",
 601                  vsi->num_q_vectors, vsi->base_vector);
 602         dev_info(&pf->pdev->dev,
 603                  "    seid = %d, id = %d, uplink_seid = %d\n",
 604                  vsi->seid, vsi->id, vsi->uplink_seid);
 605         dev_info(&pf->pdev->dev,
 606                  "    base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
 607                  vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
 608         dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 609         dev_info(&pf->pdev->dev,
 610                  "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 611                  vsi->info.valid_sections, vsi->info.switch_id);
 612         dev_info(&pf->pdev->dev,
 613                  "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 614                  vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 615         dev_info(&pf->pdev->dev,
 616                  "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 617                  vsi->info.sec_flags, vsi->info.sec_reserved);
 618         dev_info(&pf->pdev->dev,
 619                  "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 620                  vsi->info.pvid, vsi->info.fcoe_pvid,
 621                  vsi->info.port_vlan_flags);
 622         dev_info(&pf->pdev->dev,
 623                  "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 624                  vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 625                  vsi->info.pvlan_reserved[2]);
 626         dev_info(&pf->pdev->dev,
 627                  "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 628                  vsi->info.ingress_table, vsi->info.egress_table);
 629         dev_info(&pf->pdev->dev,
 630                  "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 631                  vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 632                  vsi->info.cas_pv_reserved);
 633         dev_info(&pf->pdev->dev,
 634                  "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 635                  vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 636                  vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 637                  vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 638                  vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 639         dev_info(&pf->pdev->dev,
 640                  "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 641                  vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 642                  vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 643                  vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 644                  vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 645         dev_info(&pf->pdev->dev,
 646                  "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 647                  vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 648                  vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 649                  vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 650                  vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 651         dev_info(&pf->pdev->dev,
 652                  "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 653                  vsi->info.queueing_opt_flags,
 654                  vsi->info.queueing_opt_reserved[0],
 655                  vsi->info.queueing_opt_reserved[1],
 656                  vsi->info.queueing_opt_reserved[2]);
 657         dev_info(&pf->pdev->dev,
 658                  "    info: up_enable_bits = 0x%02x\n",
 659                  vsi->info.up_enable_bits);
 660         dev_info(&pf->pdev->dev,
 661                  "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 662                  vsi->info.sched_reserved, vsi->info.outer_up_table);
 663         dev_info(&pf->pdev->dev,
 664                  "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 665                  vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 666                  vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 667                  vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 668                  vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 669         dev_info(&pf->pdev->dev,
 670                  "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 671                  vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 672                  vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 673                  vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 674                  vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 675         dev_info(&pf->pdev->dev,
 676                  "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 677                  vsi->info.stat_counter_idx, vsi->info.sched_id);
 678         dev_info(&pf->pdev->dev,
 679                  "    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",
 680                  vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 681                  vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 682                  vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 683                  vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 684                  vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 685                  vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 686         if (vsi->back)
 687                 dev_info(&pf->pdev->dev, "    pf = %p\n", vsi->back);
 688         dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 689         dev_info(&pf->pdev->dev,
 690                  "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 691                  vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 692         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 693                 dev_info(&pf->pdev->dev,
 694                          "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 695                          i, vsi->tc_config.tc_info[i].qoffset,
 696                          vsi->tc_config.tc_info[i].qcount,
 697                          vsi->tc_config.tc_info[i].netdev_tc);
 698         }
 699         dev_info(&pf->pdev->dev,
 700                  "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 701                  vsi->bw_limit, vsi->bw_max_quanta);
 702         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 703                 dev_info(&pf->pdev->dev,
 704                          "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 705                          i, vsi->bw_ets_share_credits[i],
 706                          vsi->bw_ets_limit_credits[i],
 707                          vsi->bw_ets_max_quanta[i]);
 708         }
 709 }
 710
 711 /**
 712  * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 713  * @pf: the i40e_pf created in command write
 714  **/
 715 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 716 {
 717         struct i40e_adminq_ring *ring;
 718         struct i40e_hw *hw = &pf->hw;
 719         int i;
 720
 721         /* first the send (command) ring, then the receive (event) ring */
 722         dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 723         ring = &(hw->aq.asq);
 724         for (i = 0; i < ring->count; i++) {
 725                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 726                 dev_info(&pf->pdev->dev,
 727                          "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 728                          i, d->flags, d->opcode, d->datalen, d->retval,
 729                          d->cookie_high, d->cookie_low);
 730                 dev_info(&pf->pdev->dev,
 731                          "            %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
 732                          d->params.raw[0], d->params.raw[1], d->params.raw[2],
 733                          d->params.raw[3], d->params.raw[4], d->params.raw[5],
 734                          d->params.raw[6], d->params.raw[7], d->params.raw[8],
 735                          d->params.raw[9], d->params.raw[10], d->params.raw[11],
 736                          d->params.raw[12], d->params.raw[13],
 737                          d->params.raw[14], d->params.raw[15]);
 738         }
 739
 740         dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 741         ring = &(hw->aq.arq);
 742         for (i = 0; i < ring->count; i++) {
 743                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 744                 dev_info(&pf->pdev->dev,
 745                          "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 746                          i, d->flags, d->opcode, d->datalen, d->retval,
 747                          d->cookie_high, d->cookie_low);
 748                 dev_info(&pf->pdev->dev,
 749                          "            %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
 750                          d->params.raw[0], d->params.raw[1], d->params.raw[2],
 751                          d->params.raw[3], d->params.raw[4], d->params.raw[5],
 752                          d->params.raw[6], d->params.raw[7], d->params.raw[8],
 753                          d->params.raw[9], d->params.raw[10], d->params.raw[11],
 754                          d->params.raw[12], d->params.raw[13],
 755                          d->params.raw[14], d->params.raw[15]);
 756         }
 757 }
 758
 759 /**
 760  * i40e_dbg_dump_desc - handles dump desc write into command datum
 761  * @cnt: number of arguments that the user supplied
 762  * @vsi_seid: vsi id entered by user
 763  * @ring_id: ring id entered by user
 764  * @desc_n: descriptor number entered by user
 765  * @pf: the i40e_pf created in command write
 766  * @is_rx_ring: true if rx, false if tx
 767  **/
 768 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 769                                struct i40e_pf *pf, bool is_rx_ring)
 770 {
 771         union i40e_rx_desc *ds;
 772         struct i40e_ring ring;
 773         struct i40e_vsi *vsi;
 774         int i;
 775
 776         vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 777         if (!vsi) {
 778                 dev_info(&pf->pdev->dev,
 779                          "vsi %d not found\n", vsi_seid);
 780                 if (is_rx_ring)
 781                         dev_info(&pf->pdev->dev, "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
 782                 else
 783                         dev_info(&pf->pdev->dev, "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
 784                 return;
 785         }
 786         if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 787                 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 788                 if (is_rx_ring)
 789                         dev_info(&pf->pdev->dev, "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
 790                 else
 791                         dev_info(&pf->pdev->dev, "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
 792                 return;
 793         }
 794         if (is_rx_ring)
 795                 ring = vsi->rx_rings[ring_id];
 796         else
 797                 ring = vsi->tx_rings[ring_id];
 798         if (cnt == 2) {
 799                 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 800                          vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
 801                 for (i = 0; i < ring.count; i++) {
 802                         if (is_rx_ring)
 803                                 ds = I40E_RX_DESC(&ring, i);
 804                         else
 805                                 ds = (union i40e_rx_desc *)
 806                                         I40E_TX_DESC(&ring, i);
 807                         if ((sizeof(union i40e_rx_desc) ==
 808                             sizeof(union i40e_16byte_rx_desc)) || (!is_rx_ring))
 809                                 dev_info(&pf->pdev->dev,
 810                                          "   d[%03i] = 0x%016llx 0x%016llx\n", i,
 811                                          ds->read.pkt_addr, ds->read.hdr_addr);
 812                         else
 813                                 dev_info(&pf->pdev->dev,
 814                                          "   d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 815                                          i, ds->read.pkt_addr,
 816                                          ds->read.hdr_addr,
 817                                          ds->read.rsvd1, ds->read.rsvd2);
 818                 }
 819         } else if (cnt == 3) {
 820                 if (desc_n >= ring.count || desc_n < 0) {
 821                         dev_info(&pf->pdev->dev,
 822                                  "descriptor %d not found\n", desc_n);
 823                         return;
 824                 }
 825                 if (is_rx_ring)
 826                         ds = I40E_RX_DESC(&ring, desc_n);
 827                 else
 828                         ds = (union i40e_rx_desc *)I40E_TX_DESC(&ring, desc_n);
 829                 if ((sizeof(union i40e_rx_desc) ==
 830                     sizeof(union i40e_16byte_rx_desc)) || (!is_rx_ring))
 831                         dev_info(&pf->pdev->dev,
 832                                  "vsi = %02i %s ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
 833                                  vsi_seid, is_rx_ring ? "rx" : "tx", ring_id,
 834                                  desc_n, ds->read.pkt_addr, ds->read.hdr_addr);
 835                 else
 836                         dev_info(&pf->pdev->dev,
 837                                  "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 838                                  vsi_seid, ring_id,
 839                                  desc_n, ds->read.pkt_addr, ds->read.hdr_addr,
 840                                  ds->read.rsvd1, ds->read.rsvd2);
 841         } else {
 842                 if (is_rx_ring)
 843                         dev_info(&pf->pdev->dev, "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
 844                 else
 845                         dev_info(&pf->pdev->dev, "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
 846         }
 847 }
 848
 849 /**
 850  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 851  * @pf: the i40e_pf created in command write
 852  **/
 853 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 854 {
 855         int i;
 856
 857         for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
 858                 if (pf->vsi[i])
 859                         dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 860                                  i, pf->vsi[i]->seid);
 861 }
 862
 863 /**
 864  * i40e_dbg_dump_stats - handles dump stats write into command datum
 865  * @pf: the i40e_pf created in command write
 866  * @estats: the eth stats structure to be dumped
 867  **/
 868 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 869                                     struct i40e_eth_stats *estats)
 870 {
 871         dev_info(&pf->pdev->dev, "  ethstats:\n");
 872         dev_info(&pf->pdev->dev,
 873                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 874                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 875         dev_info(&pf->pdev->dev,
 876                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld \trx_errors = \t%lld\n",
 877                  estats->rx_broadcast, estats->rx_discards, estats->rx_errors);
 878         dev_info(&pf->pdev->dev,
 879                  "    rx_missed = \t%lld \trx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 880                  estats->rx_missed, estats->rx_unknown_protocol,
 881                  estats->tx_bytes);
 882         dev_info(&pf->pdev->dev,
 883                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 884                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 885         dev_info(&pf->pdev->dev,
 886                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 887                  estats->tx_discards, estats->tx_errors);
 888 }
 889
 890 /**
 891  * i40e_dbg_dump_stats - handles dump stats write into command datum
 892  * @pf: the i40e_pf created in command write
 893  * @stats: the stats structure to be dumped
 894  **/
 895 static void i40e_dbg_dump_stats(struct i40e_pf *pf,
 896                                 struct i40e_hw_port_stats *stats)
 897 {
 898         int i;
 899
 900         dev_info(&pf->pdev->dev, "  stats:\n");
 901         dev_info(&pf->pdev->dev,
 902                  "    crc_errors = \t\t%lld \tillegal_bytes = \t%lld \terror_bytes = \t\t%lld\n",
 903                  stats->crc_errors, stats->illegal_bytes, stats->error_bytes);
 904         dev_info(&pf->pdev->dev,
 905                  "    mac_local_faults = \t%lld \tmac_remote_faults = \t%lld \trx_length_errors = \t%lld\n",
 906                  stats->mac_local_faults, stats->mac_remote_faults,
 907                  stats->rx_length_errors);
 908         dev_info(&pf->pdev->dev,
 909                  "    link_xon_rx = \t\t%lld \tlink_xoff_rx = \t\t%lld \tlink_xon_tx = \t\t%lld\n",
 910                  stats->link_xon_rx, stats->link_xoff_rx, stats->link_xon_tx);
 911         dev_info(&pf->pdev->dev,
 912                  "    link_xoff_tx = \t\t%lld \trx_size_64 = \t\t%lld \trx_size_127 = \t\t%lld\n",
 913                  stats->link_xoff_tx, stats->rx_size_64, stats->rx_size_127);
 914         dev_info(&pf->pdev->dev,
 915                  "    rx_size_255 = \t\t%lld \trx_size_511 = \t\t%lld \trx_size_1023 = \t\t%lld\n",
 916                  stats->rx_size_255, stats->rx_size_511, stats->rx_size_1023);
 917         dev_info(&pf->pdev->dev,
 918                  "    rx_size_big = \t\t%lld \trx_undersize = \t\t%lld \trx_jabber = \t\t%lld\n",
 919                  stats->rx_size_big, stats->rx_undersize, stats->rx_jabber);
 920         dev_info(&pf->pdev->dev,
 921                  "    rx_fragments = \t\t%lld \trx_oversize = \t\t%lld \ttx_size_64 = \t\t%lld\n",
 922                  stats->rx_fragments, stats->rx_oversize, stats->tx_size_64);
 923         dev_info(&pf->pdev->dev,
 924                  "    tx_size_127 = \t\t%lld \ttx_size_255 = \t\t%lld \ttx_size_511 = \t\t%lld\n",
 925                  stats->tx_size_127, stats->tx_size_255, stats->tx_size_511);
 926         dev_info(&pf->pdev->dev,
 927                  "    tx_size_1023 = \t\t%lld \ttx_size_big = \t\t%lld \tmac_short_packet_dropped = \t%lld\n",
 928                  stats->tx_size_1023, stats->tx_size_big,
 929                  stats->mac_short_packet_dropped);
 930         for (i = 0; i < 8; i += 4) {
 931                 dev_info(&pf->pdev->dev,
 932                          "    priority_xon_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 933                          i, stats->priority_xon_rx[i],
 934                          i+1, stats->priority_xon_rx[i+1],
 935                          i+2, stats->priority_xon_rx[i+2],
 936                          i+3, stats->priority_xon_rx[i+3]);
 937         }
 938         for (i = 0; i < 8; i += 4) {
 939                 dev_info(&pf->pdev->dev,
 940                          "    priority_xoff_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 941                          i, stats->priority_xoff_rx[i],
 942                          i+1, stats->priority_xoff_rx[i+1],
 943                          i+2, stats->priority_xoff_rx[i+2],
 944                          i+3, stats->priority_xoff_rx[i+3]);
 945         }
 946         for (i = 0; i < 8; i += 4) {
 947                 dev_info(&pf->pdev->dev,
 948                          "    priority_xon_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 949                          i, stats->priority_xon_tx[i],
 950                          i+1, stats->priority_xon_tx[i+1],
 951                          i+2, stats->priority_xon_tx[i+2],
 952                          i+3, stats->priority_xon_rx[i+3]);
 953         }
 954         for (i = 0; i < 8; i += 4) {
 955                 dev_info(&pf->pdev->dev,
 956                          "    priority_xoff_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 957                          i, stats->priority_xoff_tx[i],
 958                          i+1, stats->priority_xoff_tx[i+1],
 959                          i+2, stats->priority_xoff_tx[i+2],
 960                          i+3, stats->priority_xoff_tx[i+3]);
 961         }
 962         for (i = 0; i < 8; i += 4) {
 963                 dev_info(&pf->pdev->dev,
 964                          "    priority_xon_2_xoff[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 965                          i, stats->priority_xon_2_xoff[i],
 966                          i+1, stats->priority_xon_2_xoff[i+1],
 967                          i+2, stats->priority_xon_2_xoff[i+2],
 968                          i+3, stats->priority_xon_2_xoff[i+3]);
 969         }
 970
 971         i40e_dbg_dump_eth_stats(pf, &stats->eth);
 972 }
 973
 974 /**
 975  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 976  * @pf: the i40e_pf created in command write
 977  * @seid: the seid the user put in
 978  **/
 979 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 980 {
 981         struct i40e_veb *veb;
 982
 983         if ((seid < I40E_BASE_VEB_SEID) ||
 984             (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
 985                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
 986                 return;
 987         }
 988
 989         veb = i40e_dbg_find_veb(pf, seid);
 990         if (!veb) {
 991                 dev_info(&pf->pdev->dev,
 992                          "%d: can't find veb\n", seid);
 993                 return;
 994         }
 995         dev_info(&pf->pdev->dev,
 996                  "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d\n",
 997                  veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 998                  veb->uplink_seid);
 999         i40e_dbg_dump_eth_stats(pf, &veb->stats);
1000 }
1001
1002 /**
1003  * i40e_dbg_dump_veb_all - dumps all known veb's stats
1004  * @pf: the i40e_pf created in command write
1005  **/
1006 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
1007 {
1008         struct i40e_veb *veb;
1009         int i;
1010
1011         for (i = 0; i < I40E_MAX_VEB; i++) {
1012                 veb = pf->veb[i];
1013                 if (veb)
1014                         i40e_dbg_dump_veb_seid(pf, veb->seid);
1015         }
1016 }
1017
1018 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
1019 /**
1020  * i40e_dbg_command_write - write into command datum
1021  * @filp: the opened file
1022  * @buffer: where to find the user's data
1023  * @count: the length of the user's data
1024  * @ppos: file position offset
1025  **/
1026 static ssize_t i40e_dbg_command_write(struct file *filp,
1027                                       const char __user *buffer,
1028                                       size_t count, loff_t *ppos)
1029 {
1030         struct i40e_pf *pf = filp->private_data;
1031         int bytes_not_copied;
1032         struct i40e_vsi *vsi;
1033         u8 *print_buf_start;
1034         u8 *print_buf;
1035         char *cmd_buf;
1036         int vsi_seid;
1037         int veb_seid;
1038         int cnt;
1039
1040         /* don't allow partial writes */
1041         if (*ppos != 0)
1042                 return 0;
1043
1044         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
1045         if (!cmd_buf)
1046                 return count;
1047         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
1048         if (bytes_not_copied < 0)
1049                 return bytes_not_copied;
1050         if (bytes_not_copied > 0)
1051                 count -= bytes_not_copied;
1052         cmd_buf[count] = '\0';
1053
1054         print_buf_start = kzalloc(I40E_MAX_DEBUG_OUT_BUFFER, GFP_KERNEL);
1055         if (!print_buf_start)
1056                 goto command_write_done;
1057         print_buf = print_buf_start;
1058
1059         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
1060                 vsi_seid = -1;
1061                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1062                 if (cnt == 0) {
1063                         /* default to PF VSI */
1064                         vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1065                 } else if (vsi_seid < 0) {
1066                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1067                                  vsi_seid);
1068                         goto command_write_done;
1069                 }
1070
1071                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1072                 if (vsi)
1073                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1074                                  vsi->seid, vsi->uplink_seid);
1075                 else
1076                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1077
1078         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1079                 sscanf(&cmd_buf[7], "%i", &vsi_seid);
1080                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1081                 if (!vsi) {
1082                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1083                                  vsi_seid);
1084                         goto command_write_done;
1085                 }
1086
1087                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1088                 i40e_vsi_release(vsi);
1089
1090         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1091                 struct i40e_veb *veb;
1092                 int uplink_seid, i;
1093
1094                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1095                 if (cnt != 2) {
1096                         dev_info(&pf->pdev->dev,
1097                                  "add relay: bad command string, cnt=%d\n",
1098                                  cnt);
1099                         goto command_write_done;
1100                 } else if (uplink_seid < 0) {
1101                         dev_info(&pf->pdev->dev,
1102                                  "add relay %d: bad uplink seid\n",
1103                                  uplink_seid);
1104                         goto command_write_done;
1105                 }
1106
1107                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1108                 if (!vsi) {
1109                         dev_info(&pf->pdev->dev,
1110                                  "add relay: vsi VSI %d not found\n", vsi_seid);
1111                         goto command_write_done;
1112                 }
1113
1114                 for (i = 0; i < I40E_MAX_VEB; i++)
1115                         if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1116                                 break;
1117                 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1118                     uplink_seid != pf->mac_seid) {
1119                         dev_info(&pf->pdev->dev,
1120                                  "add relay: relay uplink %d not found\n",
1121                                  uplink_seid);
1122                         goto command_write_done;
1123                 }
1124
1125                 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1126                                      vsi->tc_config.enabled_tc);
1127                 if (veb)
1128                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1129                 else
1130                         dev_info(&pf->pdev->dev, "add relay failed\n");
1131
1132         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1133                 int i;
1134                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1135                 if (cnt != 1) {
1136                         dev_info(&pf->pdev->dev,
1137                                  "del relay: bad command string, cnt=%d\n",
1138                                  cnt);
1139                         goto command_write_done;
1140                 } else if (veb_seid < 0) {
1141                         dev_info(&pf->pdev->dev,
1142                                  "del relay %d: bad relay seid\n", veb_seid);
1143                         goto command_write_done;
1144                 }
1145
1146                 /* find the veb */
1147                 for (i = 0; i < I40E_MAX_VEB; i++)
1148                         if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1149                                 break;
1150                 if (i >= I40E_MAX_VEB) {
1151                         dev_info(&pf->pdev->dev,
1152                                  "del relay: relay %d not found\n", veb_seid);
1153                         goto command_write_done;
1154                 }
1155
1156                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1157                 i40e_veb_release(pf->veb[i]);
1158
1159         } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
1160                 u8 ma[6];
1161                 int vlan = 0;
1162                 struct i40e_mac_filter *f;
1163                 int ret;
1164
1165                 cnt = sscanf(&cmd_buf[11],
1166                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1167                              &vsi_seid,
1168                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1169                              &vlan);
1170                 if (cnt == 7) {
1171                         vlan = 0;
1172                 } else if (cnt != 8) {
1173                         dev_info(&pf->pdev->dev,
1174                                  "add macaddr: bad command string, cnt=%d\n",
1175                                  cnt);
1176                         goto command_write_done;
1177                 }
1178
1179                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1180                 if (!vsi) {
1181                         dev_info(&pf->pdev->dev,
1182                                  "add macaddr: VSI %d not found\n", vsi_seid);
1183                         goto command_write_done;
1184                 }
1185
1186                 f = i40e_add_filter(vsi, ma, vlan, false, false);
1187                 ret = i40e_sync_vsi_filters(vsi);
1188                 if (f && !ret)
1189                         dev_info(&pf->pdev->dev,
1190                                  "add macaddr: %pM vlan=%d added to VSI %d\n",
1191                                  ma, vlan, vsi_seid);
1192                 else
1193                         dev_info(&pf->pdev->dev,
1194                                  "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1195                                  ma, vlan, vsi_seid, f, ret);
1196
1197         } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
1198                 u8 ma[6];
1199                 int vlan = 0;
1200                 int ret;
1201
1202                 cnt = sscanf(&cmd_buf[11],
1203                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1204                              &vsi_seid,
1205                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1206                              &vlan);
1207                 if (cnt == 7) {
1208                         vlan = 0;
1209                 } else if (cnt != 8) {
1210                         dev_info(&pf->pdev->dev,
1211                                  "del macaddr: bad command string, cnt=%d\n",
1212                                  cnt);
1213                         goto command_write_done;
1214                 }
1215
1216                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1217                 if (!vsi) {
1218                         dev_info(&pf->pdev->dev,
1219                                  "del macaddr: VSI %d not found\n", vsi_seid);
1220                         goto command_write_done;
1221                 }
1222
1223                 i40e_del_filter(vsi, ma, vlan, false, false);
1224                 ret = i40e_sync_vsi_filters(vsi);
1225                 if (!ret)
1226                         dev_info(&pf->pdev->dev,
1227                                  "del macaddr: %pM vlan=%d removed from VSI %d\n",
1228                                  ma, vlan, vsi_seid);
1229                 else
1230                         dev_info(&pf->pdev->dev,
1231                                  "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1232                                  ma, vlan, vsi_seid, ret);
1233
1234         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
1235                 int v;
1236                 u16 vid;
1237                 i40e_status ret;
1238
1239                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1240                 if (cnt != 2) {
1241                         dev_info(&pf->pdev->dev,
1242                                  "add pvid: bad command string, cnt=%d\n", cnt);
1243                         goto command_write_done;
1244                 }
1245
1246                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1247                 if (!vsi) {
1248                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1249                                  vsi_seid);
1250                         goto command_write_done;
1251                 }
1252
1253                 vid = (unsigned)v;
1254                 ret = i40e_vsi_add_pvid(vsi, vid);
1255                 if (!ret)
1256                         dev_info(&pf->pdev->dev,
1257                                  "add pvid: %d added to VSI %d\n",
1258                                  vid, vsi_seid);
1259                 else
1260                         dev_info(&pf->pdev->dev,
1261                                  "add pvid: %d to VSI %d failed, ret=%d\n",
1262                                  vid, vsi_seid, ret);
1263
1264         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1265
1266                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1267                 if (cnt != 1) {
1268                         dev_info(&pf->pdev->dev,
1269                                  "del pvid: bad command string, cnt=%d\n",
1270                                  cnt);
1271                         goto command_write_done;
1272                 }
1273
1274                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1275                 if (!vsi) {
1276                         dev_info(&pf->pdev->dev,
1277                                  "del pvid: VSI %d not found\n", vsi_seid);
1278                         goto command_write_done;
1279                 }
1280
1281                 i40e_vsi_remove_pvid(vsi);
1282                 dev_info(&pf->pdev->dev,
1283                          "del pvid: removed from VSI %d\n", vsi_seid);
1284
1285         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1286                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1287                         i40e_fetch_switch_configuration(pf, true);
1288                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1289                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1290                         if (cnt > 0)
1291                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1292                         else
1293                                 i40e_dbg_dump_vsi_no_seid(pf);
1294                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1295                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1296                         if (cnt > 0)
1297                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1298                         else
1299                                 i40e_dbg_dump_veb_all(pf);
1300                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1301                         int ring_id, desc_n;
1302                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
1303                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1304                                              &vsi_seid, &ring_id, &desc_n);
1305                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1306                                                    desc_n, pf, true);
1307                         } else if (strncmp(&cmd_buf[10], "tx", 2)
1308                                         == 0) {
1309                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1310                                              &vsi_seid, &ring_id, &desc_n);
1311                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1312                                                    desc_n, pf, false);
1313                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1314                                 i40e_dbg_dump_aq_desc(pf);
1315                         } else {
1316                                 dev_info(&pf->pdev->dev,
1317                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1318                                 dev_info(&pf->pdev->dev,
1319                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1320                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
1321                         }
1322                 } else if (strncmp(&cmd_buf[5], "stats", 5) == 0) {
1323                         dev_info(&pf->pdev->dev, "pf stats:\n");
1324                         i40e_dbg_dump_stats(pf, &pf->stats);
1325                         dev_info(&pf->pdev->dev, "pf stats_offsets:\n");
1326                         i40e_dbg_dump_stats(pf, &pf->stats_offsets);
1327                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1328                         dev_info(&pf->pdev->dev,
1329                                  "core reset count: %d\n", pf->corer_count);
1330                         dev_info(&pf->pdev->dev,
1331                                  "global reset count: %d\n", pf->globr_count);
1332                         dev_info(&pf->pdev->dev,
1333                                  "emp reset count: %d\n", pf->empr_count);
1334                         dev_info(&pf->pdev->dev,
1335                                  "pf reset count: %d\n", pf->pfr_count);
1336                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1337                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
1338                         struct i40e_dcbx_config *cfg =
1339                                                 &pf->hw.local_dcbx_config;
1340                         struct i40e_dcbx_config *r_cfg =
1341                                                 &pf->hw.remote_dcbx_config;
1342                         int i, ret;
1343
1344                         bw_data = kzalloc(sizeof(
1345                                     struct i40e_aqc_query_port_ets_config_resp),
1346                                           GFP_KERNEL);
1347                         if (!bw_data) {
1348                                 ret = -ENOMEM;
1349                                 goto command_write_done;
1350                         }
1351
1352                         ret = i40e_aq_query_port_ets_config(&pf->hw,
1353                                                             pf->mac_seid,
1354                                                             bw_data, NULL);
1355                         if (ret) {
1356                                 dev_info(&pf->pdev->dev,
1357                                          "Query Port ETS Config AQ command failed =0x%x\n",
1358                                          pf->hw.aq.asq_last_status);
1359                                 kfree(bw_data);
1360                                 bw_data = NULL;
1361                                 goto command_write_done;
1362                         }
1363                         dev_info(&pf->pdev->dev,
1364                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1365                                  bw_data->tc_valid_bits,
1366                                  bw_data->tc_strict_priority_bits,
1367                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1368                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1369                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1370                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1371                                          bw_data->tc_bw_share_credits[i],
1372                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1373                         }
1374
1375                         kfree(bw_data);
1376                         bw_data = NULL;
1377
1378                         dev_info(&pf->pdev->dev,
1379                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1380                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1381                                  cfg->etscfg.maxtcs);
1382                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1383                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1384                                          i, cfg->etscfg.prioritytable[i],
1385                                          cfg->etscfg.tcbwtable[i],
1386                                          cfg->etscfg.tsatable[i]);
1387                         }
1388                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1389                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1390                                          i, cfg->etsrec.prioritytable[i],
1391                                          cfg->etsrec.tcbwtable[i],
1392                                          cfg->etsrec.tsatable[i]);
1393                         }
1394                         dev_info(&pf->pdev->dev,
1395                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1396                                  cfg->pfc.willing, cfg->pfc.mbc,
1397                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1398                         dev_info(&pf->pdev->dev,
1399                                  "port app_table: num_apps=%d\n", cfg->numapps);
1400                         for (i = 0; i < cfg->numapps; i++) {
1401                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1402                                          i, cfg->app[i].priority,
1403                                          cfg->app[i].selector,
1404                                          cfg->app[i].protocolid);
1405                         }
1406                         /* Peer TLV DCBX data */
1407                         dev_info(&pf->pdev->dev,
1408                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1409                                  r_cfg->etscfg.willing,
1410                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1411                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1412                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1413                                          i, r_cfg->etscfg.prioritytable[i],
1414                                          r_cfg->etscfg.tcbwtable[i],
1415                                          r_cfg->etscfg.tsatable[i]);
1416                         }
1417                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1418                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1419                                          i, r_cfg->etsrec.prioritytable[i],
1420                                          r_cfg->etsrec.tcbwtable[i],
1421                                          r_cfg->etsrec.tsatable[i]);
1422                         }
1423                         dev_info(&pf->pdev->dev,
1424                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1425                                  r_cfg->pfc.willing,
1426                                  r_cfg->pfc.mbc,
1427                                  r_cfg->pfc.pfccap,
1428                                  r_cfg->pfc.pfcenable);
1429                         dev_info(&pf->pdev->dev,
1430                                  "remote port app_table: num_apps=%d\n",
1431                                  r_cfg->numapps);
1432                         for (i = 0; i < r_cfg->numapps; i++) {
1433                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1434                                          i, r_cfg->app[i].priority,
1435                                          r_cfg->app[i].selector,
1436                                          r_cfg->app[i].protocolid);
1437                         }
1438                 } else {
1439                         dev_info(&pf->pdev->dev,
1440                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1441                         dev_info(&pf->pdev->dev, "dump switch, dump vsi [seid] or\n");
1442                         dev_info(&pf->pdev->dev, "dump stats\n");
1443                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1444                         dev_info(&pf->pdev->dev, "dump port\n");
1445                         dev_info(&pf->pdev->dev,
1446                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1447                 }
1448
1449         } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1450                 u32 level;
1451                 cnt = sscanf(&cmd_buf[10], "%i", &level);
1452                 if (cnt) {
1453                         if (I40E_DEBUG_USER & level) {
1454                                 pf->hw.debug_mask = level;
1455                                 dev_info(&pf->pdev->dev,
1456                                          "set hw.debug_mask = 0x%08x\n",
1457                                          pf->hw.debug_mask);
1458                         }
1459                         pf->msg_enable = level;
1460                         dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1461                                  pf->msg_enable);
1462                 } else {
1463                         dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1464                                  pf->msg_enable);
1465                 }
1466         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1467                 dev_info(&pf->pdev->dev, "forcing PFR\n");
1468                 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
1469
1470         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1471                 dev_info(&pf->pdev->dev, "forcing CoreR\n");
1472                 i40e_do_reset(pf, (1 << __I40E_CORE_RESET_REQUESTED));
1473
1474         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1475                 dev_info(&pf->pdev->dev, "forcing GlobR\n");
1476                 i40e_do_reset(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED));
1477
1478         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1479                 u32 address;
1480                 u32 value;
1481                 cnt = sscanf(&cmd_buf[4], "%x", &address);
1482                 if (cnt != 1) {
1483                         dev_info(&pf->pdev->dev, "read <reg>\n");
1484                         goto command_write_done;
1485                 }
1486
1487                 /* check the range on address */
1488                 if (address >= I40E_MAX_REGISTER) {
1489                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n",
1490                                  address);
1491                         goto command_write_done;
1492                 }
1493
1494                 value = rd32(&pf->hw, address);
1495                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1496                          address, value);
1497
1498         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1499                 u32 address, value;
1500                 cnt = sscanf(&cmd_buf[5], "%x %x", &address, &value);
1501                 if (cnt != 2) {
1502                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1503                         goto command_write_done;
1504                 }
1505
1506                 /* check the range on address */
1507                 if (address >= I40E_MAX_REGISTER) {
1508                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n",
1509                                  address);
1510                         goto command_write_done;
1511                 }
1512                 wr32(&pf->hw, address, value);
1513                 value = rd32(&pf->hw, address);
1514                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1515                          address, value);
1516         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1517                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1518                         cnt = sscanf(&cmd_buf[15], "%d", &vsi_seid);
1519                         if (cnt == 0) {
1520                                 int i;
1521                                 for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
1522                                         i40e_vsi_reset_stats(pf->vsi[i]);
1523                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1524                         } else if (cnt == 1) {
1525                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1526                                 if (!vsi) {
1527                                         dev_info(&pf->pdev->dev,
1528                                                  "clear_stats vsi: bad vsi %d\n",
1529                                                  vsi_seid);
1530                                         goto command_write_done;
1531                                 }
1532                                 i40e_vsi_reset_stats(vsi);
1533                                 dev_info(&pf->pdev->dev,
1534                                          "vsi clear stats called for vsi %d\n",
1535                                          vsi_seid);
1536                         } else {
1537                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1538                         }
1539                 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) {
1540                         i40e_pf_reset_stats(pf);
1541                         dev_info(&pf->pdev->dev, "pf clear stats called\n");
1542                 } else {
1543                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n");
1544                 }
1545         } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1546                    (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
1547                 struct i40e_fdir_data fd_data;
1548                 int ret;
1549                 u16 packet_len, i, j = 0;
1550                 char *asc_packet;
1551                 bool add = false;
1552
1553                 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP,
1554                                      GFP_KERNEL);
1555                 if (!asc_packet)
1556                         goto command_write_done;
1557
1558                 fd_data.raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP,
1559                                              GFP_KERNEL);
1560
1561                 if (!fd_data.raw_packet) {
1562                         kfree(asc_packet);
1563                         asc_packet = NULL;
1564                         goto command_write_done;
1565                 }
1566
1567                 if (strncmp(cmd_buf, "add", 3) == 0)
1568                         add = true;
1569                 cnt = sscanf(&cmd_buf[13],
1570                              "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %512s",
1571                              &fd_data.q_index,
1572                              &fd_data.flex_off, &fd_data.pctype,
1573                              &fd_data.dest_vsi, &fd_data.dest_ctl,
1574                              &fd_data.fd_status, &fd_data.cnt_index,
1575                              &fd_data.fd_id, &packet_len, asc_packet);
1576                 if (cnt != 10) {
1577                         dev_info(&pf->pdev->dev,
1578                                  "program fd_filter: bad command string, cnt=%d\n",
1579                                  cnt);
1580                         kfree(asc_packet);
1581                         asc_packet = NULL;
1582                         kfree(fd_data.raw_packet);
1583                         goto command_write_done;
1584                 }
1585
1586                 /* fix packet length if user entered 0 */
1587                 if (packet_len == 0)
1588                         packet_len = I40E_FDIR_MAX_RAW_PACKET_LOOKUP;
1589
1590                 /* make sure to check the max as well */
1591                 packet_len = min_t(u16,
1592                                    packet_len, I40E_FDIR_MAX_RAW_PACKET_LOOKUP);
1593
1594                 dev_info(&pf->pdev->dev, "FD raw packet:\n");
1595                 for (i = 0; i < packet_len; i++) {
1596                         sscanf(&asc_packet[j], "%2hhx ",
1597                                &fd_data.raw_packet[i]);
1598                         j += 3;
1599                         snprintf(print_buf, 3, "%02x ", fd_data.raw_packet[i]);
1600                         print_buf += 3;
1601                         if ((i % 16) == 15) {
1602                                 snprintf(print_buf, 1, "\n");
1603                                 print_buf++;
1604                         }
1605                 }
1606                 dev_info(&pf->pdev->dev, "%s\n", print_buf_start);
1607                 ret = i40e_program_fdir_filter(&fd_data, pf, add);
1608                 if (!ret) {
1609                         dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1610                 } else {
1611                         dev_info(&pf->pdev->dev,
1612                                  "Filter command send failed %d\n", ret);
1613                 }
1614                 kfree(fd_data.raw_packet);
1615                 fd_data.raw_packet = NULL;
1616                 kfree(asc_packet);
1617                 asc_packet = NULL;
1618         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1619                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1620                         int ret;
1621                         ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1622                         if (ret) {
1623                                 dev_info(&pf->pdev->dev,
1624                                          "Stop LLDP AQ command failed =0x%x\n",
1625                                          pf->hw.aq.asq_last_status);
1626                                 goto command_write_done;
1627                         }
1628                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1629                         int ret;
1630                         ret = i40e_aq_start_lldp(&pf->hw, NULL);
1631                         if (ret) {
1632                                 dev_info(&pf->pdev->dev,
1633                                          "Start LLDP AQ command failed =0x%x\n",
1634                                          pf->hw.aq.asq_last_status);
1635                                 goto command_write_done;
1636                         }
1637                 } else if (strncmp(&cmd_buf[5],
1638                            "get local", 9) == 0) {
1639                         int ret, i;
1640                         u8 *buff;
1641                         u16 llen, rlen;
1642                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1643                         if (!buff)
1644                                 goto command_write_done;
1645
1646                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1647                                                    I40E_AQ_LLDP_MIB_LOCAL,
1648                                                    buff, I40E_LLDPDU_SIZE,
1649                                                    &llen, &rlen, NULL);
1650                         if (ret) {
1651                                 dev_info(&pf->pdev->dev,
1652                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1653                                          pf->hw.aq.asq_last_status);
1654                                 kfree(buff);
1655                                 buff = NULL;
1656                                 goto command_write_done;
1657                         }
1658                         dev_info(&pf->pdev->dev,
1659                                  "Get LLDP MIB (local) AQ buffer written back:\n");
1660                         for (i = 0; i < I40E_LLDPDU_SIZE; i++) {
1661                                 snprintf(print_buf, 3, "%02x ", buff[i]);
1662                                 print_buf += 3;
1663                                 if ((i % 16) == 15) {
1664                                         snprintf(print_buf, 1, "\n");
1665                                         print_buf++;
1666                                 }
1667                         }
1668                         dev_info(&pf->pdev->dev, "%s\n", print_buf_start);
1669                         kfree(buff);
1670                         buff = NULL;
1671                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1672                         int ret, i;
1673                         u8 *buff;
1674                         u16 llen, rlen;
1675                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1676                         if (!buff)
1677                                 goto command_write_done;
1678
1679                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1680                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1681                                         I40E_AQ_LLDP_MIB_LOCAL,
1682                                         buff, I40E_LLDPDU_SIZE,
1683                                         &llen, &rlen, NULL);
1684                         if (ret) {
1685                                 dev_info(&pf->pdev->dev,
1686                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1687                                          pf->hw.aq.asq_last_status);
1688                                 kfree(buff);
1689                                 buff = NULL;
1690                                 goto command_write_done;
1691                         }
1692                         dev_info(&pf->pdev->dev,
1693                                  "Get LLDP MIB (remote) AQ buffer written back:\n");
1694                         for (i = 0; i < I40E_LLDPDU_SIZE; i++) {
1695                                 snprintf(print_buf, 3, "%02x ", buff[i]);
1696                                 print_buf += 3;
1697                                 if ((i % 16) == 15) {
1698                                         snprintf(print_buf, 1, "\n");
1699                                         print_buf++;
1700                                 }
1701                         }
1702                         dev_info(&pf->pdev->dev, "%s\n", print_buf_start);
1703                         kfree(buff);
1704                         buff = NULL;
1705                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1706                         int ret;
1707                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1708                                                                 true, NULL);
1709                         if (ret) {
1710                                 dev_info(&pf->pdev->dev,
1711                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1712                                          pf->hw.aq.asq_last_status);
1713                                 goto command_write_done;
1714                         }
1715                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1716                         int ret;
1717                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1718                                                                 false, NULL);
1719                         if (ret) {
1720                                 dev_info(&pf->pdev->dev,
1721                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1722                                          pf->hw.aq.asq_last_status);
1723                                 goto command_write_done;
1724                         }
1725                 }
1726         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1727                 u16 buffer_len, i, bytes;
1728                 u16 module;
1729                 u32 offset;
1730                 u16 *buff;
1731                 int ret;
1732
1733                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1734                              &module, &offset, &buffer_len);
1735                 if (cnt == 0) {
1736                         module = 0;
1737                         offset = 0;
1738                         buffer_len = 0;
1739                 } else if (cnt == 1) {
1740                         offset = 0;
1741                         buffer_len = 0;
1742                 } else if (cnt == 2) {
1743                         buffer_len = 0;
1744                 } else if (cnt > 3) {
1745                         dev_info(&pf->pdev->dev,
1746                                  "nvm read: bad command string, cnt=%d\n", cnt);
1747                         goto command_write_done;
1748                 }
1749
1750                 /* Read at least 512 words */
1751                 if (buffer_len == 0)
1752                         buffer_len = 512;
1753
1754                 bytes = 2 * buffer_len;
1755                 buff = kzalloc(bytes, GFP_KERNEL);
1756                 if (!buff)
1757                         goto command_write_done;
1758
1759                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1760                 if (ret) {
1761                         dev_info(&pf->pdev->dev,
1762                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1763                                  ret, pf->hw.aq.asq_last_status);
1764                         kfree(buff);
1765                         goto command_write_done;
1766                 }
1767
1768                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1769                                        bytes, (u8 *)buff, true, NULL);
1770                 i40e_release_nvm(&pf->hw);
1771                 if (ret) {
1772                         dev_info(&pf->pdev->dev,
1773                                  "Read NVM AQ failed err=%d status=0x%x\n",
1774                                  ret, pf->hw.aq.asq_last_status);
1775                 } else {
1776                         dev_info(&pf->pdev->dev,
1777                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1778                                  module, offset, buffer_len);
1779                         for (i = 0; i < buffer_len; i++) {
1780                                 if ((i % 16) == 0) {
1781                                         snprintf(print_buf, 11, "\n0x%08x: ",
1782                                                  offset + i);
1783                                         print_buf += 11;
1784                                 }
1785                                 snprintf(print_buf, 5, "%04x ", buff[i]);
1786                                 print_buf += 5;
1787                         }
1788                         dev_info(&pf->pdev->dev, "%s\n", print_buf_start);
1789                 }
1790                 kfree(buff);
1791                 buff = NULL;
1792         } else {
1793                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1794                 dev_info(&pf->pdev->dev, "available commands\n");
1795                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1796                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1797                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1798                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1799                 dev_info(&pf->pdev->dev, "  add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1800                 dev_info(&pf->pdev->dev, "  del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1801                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1802                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1803                 dev_info(&pf->pdev->dev, "  dump switch\n");
1804                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1805                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1806                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1807                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1808                 dev_info(&pf->pdev->dev, "  dump stats\n");
1809                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1810                 dev_info(&pf->pdev->dev, "  msg_enable [level]\n");
1811                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1812                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1813                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1814                 dev_info(&pf->pdev->dev, "  clear_stats pf\n");
1815                 dev_info(&pf->pdev->dev, "  pfr\n");
1816                 dev_info(&pf->pdev->dev, "  corer\n");
1817                 dev_info(&pf->pdev->dev, "  globr\n");
1818                 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");
1819                 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");
1820                 dev_info(&pf->pdev->dev, "  lldp start\n");
1821                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1822                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1823                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1824                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1825                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1826                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1827         }
1828
1829 command_write_done:
1830         kfree(cmd_buf);
1831         cmd_buf = NULL;
1832         kfree(print_buf_start);
1833         print_buf = NULL;
1834         print_buf_start = NULL;
1835         return count;
1836 }
1837
1838 static const struct file_operations i40e_dbg_command_fops = {
1839         .owner = THIS_MODULE,
1840         .open =  simple_open,
1841         .read =  i40e_dbg_command_read,
1842         .write = i40e_dbg_command_write,
1843 };
1844
1845 /**************************************************************
1846  * netdev_ops
1847  * The netdev_ops entry in debugfs is for giving the driver commands
1848  * to be executed from the netdev operations.
1849  **************************************************************/
1850 static char i40e_dbg_netdev_ops_buf[256] = "hello world";
1851
1852 /**
1853  * i40e_dbg_netdev_ops - read for netdev_ops datum
1854  * @filp: the opened file
1855  * @buffer: where to write the data for the user to read
1856  * @count: the size of the user's buffer
1857  * @ppos: file position offset
1858  **/
1859 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1860                                         size_t count, loff_t *ppos)
1861 {
1862         struct i40e_pf *pf = filp->private_data;
1863         int bytes_not_copied;
1864         int buf_size = 256;
1865         char *buf;
1866         int len;
1867
1868         /* don't allow partal reads */
1869         if (*ppos != 0)
1870                 return 0;
1871         if (count < buf_size)
1872                 return -ENOSPC;
1873
1874         buf = kzalloc(buf_size, GFP_KERNEL);
1875         if (!buf)
1876                 return -ENOSPC;
1877
1878         len = snprintf(buf, buf_size, "%s: %s\n",
1879                        pf->vsi[pf->lan_vsi]->netdev->name,
1880                        i40e_dbg_netdev_ops_buf);
1881
1882         bytes_not_copied = copy_to_user(buffer, buf, len);
1883         kfree(buf);
1884
1885         if (bytes_not_copied < 0)
1886                 return bytes_not_copied;
1887
1888         *ppos = len;
1889         return len;
1890 }
1891
1892 /**
1893  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1894  * @filp: the opened file
1895  * @buffer: where to find the user's data
1896  * @count: the length of the user's data
1897  * @ppos: file position offset
1898  **/
1899 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1900                                          const char __user *buffer,
1901                                          size_t count, loff_t *ppos)
1902 {
1903         struct i40e_pf *pf = filp->private_data;
1904         int bytes_not_copied;
1905         struct i40e_vsi *vsi;
1906         int vsi_seid;
1907         int i, cnt;
1908
1909         /* don't allow partial writes */
1910         if (*ppos != 0)
1911                 return 0;
1912         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1913                 return -ENOSPC;
1914
1915         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1916         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1917                                           buffer, count);
1918         if (bytes_not_copied < 0)
1919                 return bytes_not_copied;
1920         else if (bytes_not_copied > 0)
1921                 count -= bytes_not_copied;
1922         i40e_dbg_netdev_ops_buf[count] = '\0';
1923
1924         if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
1925                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1926                 if (cnt != 1) {
1927                         dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
1928                         goto netdev_ops_write_done;
1929                 }
1930                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1931                 if (!vsi) {
1932                         dev_info(&pf->pdev->dev,
1933                                  "tx_timeout: VSI %d not found\n", vsi_seid);
1934                         goto netdev_ops_write_done;
1935                 }
1936                 if (rtnl_trylock()) {
1937                         vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
1938                         rtnl_unlock();
1939                         dev_info(&pf->pdev->dev, "tx_timeout called\n");
1940                 } else {
1941                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1942                 }
1943         } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1944                 int mtu;
1945                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1946                              &vsi_seid, &mtu);
1947                 if (cnt != 2) {
1948                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1949                         goto netdev_ops_write_done;
1950                 }
1951                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1952                 if (!vsi) {
1953                         dev_info(&pf->pdev->dev,
1954                                  "change_mtu: VSI %d not found\n", vsi_seid);
1955                         goto netdev_ops_write_done;
1956                 }
1957                 if (rtnl_trylock()) {
1958                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
1959                                                                 mtu);
1960                         rtnl_unlock();
1961                         dev_info(&pf->pdev->dev, "change_mtu called\n");
1962                 } else {
1963                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1964                 }
1965
1966         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1967                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1968                 if (cnt != 1) {
1969                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1970                         goto netdev_ops_write_done;
1971                 }
1972                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1973                 if (!vsi) {
1974                         dev_info(&pf->pdev->dev,
1975                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
1976                         goto netdev_ops_write_done;
1977                 }
1978                 if (rtnl_trylock()) {
1979                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1980                         rtnl_unlock();
1981                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1982                 } else {
1983                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1984                 }
1985
1986         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1987                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1988                 if (cnt != 1) {
1989                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1990                         goto netdev_ops_write_done;
1991                 }
1992                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1993                 if (!vsi) {
1994                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
1995                                  vsi_seid);
1996                         goto netdev_ops_write_done;
1997                 }
1998                 for (i = 0; i < vsi->num_q_vectors; i++)
1999                         napi_schedule(&vsi->q_vectors[i].napi);
2000                 dev_info(&pf->pdev->dev, "napi called\n");
2001         } else {
2002                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
2003                          i40e_dbg_netdev_ops_buf);
2004                 dev_info(&pf->pdev->dev, "available commands\n");
2005                 dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
2006                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
2007                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
2008                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
2009         }
2010 netdev_ops_write_done:
2011         return count;
2012 }
2013
2014 static const struct file_operations i40e_dbg_netdev_ops_fops = {
2015         .owner = THIS_MODULE,
2016         .open = simple_open,
2017         .read = i40e_dbg_netdev_ops_read,
2018         .write = i40e_dbg_netdev_ops_write,
2019 };
2020
2021 /**
2022  * i40e_dbg_pf_init - setup the debugfs directory for the pf
2023  * @pf: the pf that is starting up
2024  **/
2025 void i40e_dbg_pf_init(struct i40e_pf *pf)
2026 {
2027         struct dentry *pfile __attribute__((unused));
2028         const char *name = pci_name(pf->pdev);
2029
2030         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
2031         if (pf->i40e_dbg_pf) {
2032                 pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf,
2033                                             pf, &i40e_dbg_command_fops);
2034                 pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2035                                             &i40e_dbg_dump_fops);
2036                 pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf,
2037                                             pf, &i40e_dbg_netdev_ops_fops);
2038         } else {
2039                 dev_info(&pf->pdev->dev,
2040                          "debugfs entry for %s failed\n", name);
2041         }
2042 }
2043
2044 /**
2045  * i40e_dbg_pf_exit - clear out the pf's debugfs entries
2046  * @pf: the pf that is stopping
2047  **/
2048 void i40e_dbg_pf_exit(struct i40e_pf *pf)
2049 {
2050         debugfs_remove_recursive(pf->i40e_dbg_pf);
2051         pf->i40e_dbg_pf = NULL;
2052
2053         kfree(i40e_dbg_dump_buf);
2054         i40e_dbg_dump_buf = NULL;
2055 }
2056
2057 /**
2058  * i40e_dbg_init - start up debugfs for the driver
2059  **/
2060 void i40e_dbg_init(void)
2061 {
2062         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2063         if (!i40e_dbg_root)
2064                 pr_info("init of debugfs failed\n");
2065 }
2066
2067 /**
2068  * i40e_dbg_exit - clean out the driver's debugfs entries
2069  **/
2070 void i40e_dbg_exit(void)
2071 {
2072         debugfs_remove_recursive(i40e_dbg_root);
2073         i40e_dbg_root = NULL;
2074 }
2075
2076 #endif /* CONFIG_DEBUG_FS */