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, tx_done_old = %lld\n",
 564                                  i,
 565                                  vsi->tx_rings[i].tx_stats.tx_busy,
 566                                  vsi->tx_rings[i].tx_stats.tx_done_old);
 567                         dev_info(&pf->pdev->dev,
 568                                  "    tx_rings[%i]: size = %i, dma = 0x%08lx\n",
 569                                  i, vsi->tx_rings[i].size,
 570                                  (long unsigned int)vsi->tx_rings[i].dma);
 571                         dev_info(&pf->pdev->dev,
 572                                  "    tx_rings[%i]: vsi = %p, q_vector = %p\n",
 573                                  i, vsi->tx_rings[i].vsi,
 574                                  vsi->tx_rings[i].q_vector);
 575                         dev_info(&pf->pdev->dev,
 576                                  "    tx_rings[%i]: DCB tc = %d\n",
 577                                  i, vsi->tx_rings[i].dcb_tc);
 578                 }
 579         }
 580         dev_info(&pf->pdev->dev,
 581                  "    work_limit = %d, rx_itr_setting = %d (%s), tx_itr_setting = %d (%s)\n",
 582                  vsi->work_limit, vsi->rx_itr_setting,
 583                  ITR_IS_DYNAMIC(vsi->rx_itr_setting) ? "dynamic" : "fixed",
 584                  vsi->tx_itr_setting,
 585                  ITR_IS_DYNAMIC(vsi->tx_itr_setting) ? "dynamic" : "fixed");
 586         dev_info(&pf->pdev->dev,
 587                  "    max_frame = %d, rx_hdr_len = %d, rx_buf_len = %d dtype = %d\n",
 588                  vsi->max_frame, vsi->rx_hdr_len, vsi->rx_buf_len, vsi->dtype);
 589         if (vsi->q_vectors) {
 590                 for (i = 0; i < vsi->num_q_vectors; i++) {
 591                         dev_info(&pf->pdev->dev,
 592                                  "    q_vectors[%i]: base index = %ld\n",
 593                                  i, ((long int)*vsi->q_vectors[i].rx.ring-
 594                                         (long int)*vsi->q_vectors[0].rx.ring)/
 595                                         sizeof(struct i40e_ring));
 596                 }
 597         }
 598         dev_info(&pf->pdev->dev,
 599                  "    num_q_vectors = %i, base_vector = %i\n",
 600                  vsi->num_q_vectors, vsi->base_vector);
 601         dev_info(&pf->pdev->dev,
 602                  "    seid = %d, id = %d, uplink_seid = %d\n",
 603                  vsi->seid, vsi->id, vsi->uplink_seid);
 604         dev_info(&pf->pdev->dev,
 605                  "    base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
 606                  vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
 607         dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 608         dev_info(&pf->pdev->dev,
 609                  "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 610                  vsi->info.valid_sections, vsi->info.switch_id);
 611         dev_info(&pf->pdev->dev,
 612                  "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 613                  vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 614         dev_info(&pf->pdev->dev,
 615                  "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 616                  vsi->info.sec_flags, vsi->info.sec_reserved);
 617         dev_info(&pf->pdev->dev,
 618                  "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 619                  vsi->info.pvid, vsi->info.fcoe_pvid,
 620                  vsi->info.port_vlan_flags);
 621         dev_info(&pf->pdev->dev,
 622                  "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 623                  vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 624                  vsi->info.pvlan_reserved[2]);
 625         dev_info(&pf->pdev->dev,
 626                  "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 627                  vsi->info.ingress_table, vsi->info.egress_table);
 628         dev_info(&pf->pdev->dev,
 629                  "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 630                  vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 631                  vsi->info.cas_pv_reserved);
 632         dev_info(&pf->pdev->dev,
 633                  "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 634                  vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 635                  vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 636                  vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 637                  vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 638         dev_info(&pf->pdev->dev,
 639                  "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 640                  vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 641                  vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 642                  vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 643                  vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 644         dev_info(&pf->pdev->dev,
 645                  "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 646                  vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 647                  vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 648                  vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 649                  vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 650         dev_info(&pf->pdev->dev,
 651                  "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 652                  vsi->info.queueing_opt_flags,
 653                  vsi->info.queueing_opt_reserved[0],
 654                  vsi->info.queueing_opt_reserved[1],
 655                  vsi->info.queueing_opt_reserved[2]);
 656         dev_info(&pf->pdev->dev,
 657                  "    info: up_enable_bits = 0x%02x\n",
 658                  vsi->info.up_enable_bits);
 659         dev_info(&pf->pdev->dev,
 660                  "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 661                  vsi->info.sched_reserved, vsi->info.outer_up_table);
 662         dev_info(&pf->pdev->dev,
 663                  "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 664                  vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 665                  vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 666                  vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 667                  vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 668         dev_info(&pf->pdev->dev,
 669                  "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 670                  vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 671                  vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 672                  vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 673                  vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 674         dev_info(&pf->pdev->dev,
 675                  "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 676                  vsi->info.stat_counter_idx, vsi->info.sched_id);
 677         dev_info(&pf->pdev->dev,
 678                  "    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",
 679                  vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 680                  vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 681                  vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 682                  vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 683                  vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 684                  vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 685         if (vsi->back)
 686                 dev_info(&pf->pdev->dev, "    pf = %p\n", vsi->back);
 687         dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 688         dev_info(&pf->pdev->dev,
 689                  "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 690                  vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 691         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 692                 dev_info(&pf->pdev->dev,
 693                          "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 694                          i, vsi->tc_config.tc_info[i].qoffset,
 695                          vsi->tc_config.tc_info[i].qcount,
 696                          vsi->tc_config.tc_info[i].netdev_tc);
 697         }
 698         dev_info(&pf->pdev->dev,
 699                  "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 700                  vsi->bw_limit, vsi->bw_max_quanta);
 701         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 702                 dev_info(&pf->pdev->dev,
 703                          "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 704                          i, vsi->bw_ets_share_credits[i],
 705                          vsi->bw_ets_limit_credits[i],
 706                          vsi->bw_ets_max_quanta[i]);
 707         }
 708 }
 709
 710 /**
 711  * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 712  * @pf: the i40e_pf created in command write
 713  **/
 714 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 715 {
 716         struct i40e_adminq_ring *ring;
 717         struct i40e_hw *hw = &pf->hw;
 718         int i;
 719
 720         /* first the send (command) ring, then the receive (event) ring */
 721         dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 722         ring = &(hw->aq.asq);
 723         for (i = 0; i < ring->count; i++) {
 724                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 725                 dev_info(&pf->pdev->dev,
 726                          "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 727                          i, d->flags, d->opcode, d->datalen, d->retval,
 728                          d->cookie_high, d->cookie_low);
 729                 dev_info(&pf->pdev->dev,
 730                          "            %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
 731                          d->params.raw[0], d->params.raw[1], d->params.raw[2],
 732                          d->params.raw[3], d->params.raw[4], d->params.raw[5],
 733                          d->params.raw[6], d->params.raw[7], d->params.raw[8],
 734                          d->params.raw[9], d->params.raw[10], d->params.raw[11],
 735                          d->params.raw[12], d->params.raw[13],
 736                          d->params.raw[14], d->params.raw[15]);
 737         }
 738
 739         dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 740         ring = &(hw->aq.arq);
 741         for (i = 0; i < ring->count; i++) {
 742                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 743                 dev_info(&pf->pdev->dev,
 744                          "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 745                          i, d->flags, d->opcode, d->datalen, d->retval,
 746                          d->cookie_high, d->cookie_low);
 747                 dev_info(&pf->pdev->dev,
 748                          "            %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
 749                          d->params.raw[0], d->params.raw[1], d->params.raw[2],
 750                          d->params.raw[3], d->params.raw[4], d->params.raw[5],
 751                          d->params.raw[6], d->params.raw[7], d->params.raw[8],
 752                          d->params.raw[9], d->params.raw[10], d->params.raw[11],
 753                          d->params.raw[12], d->params.raw[13],
 754                          d->params.raw[14], d->params.raw[15]);
 755         }
 756 }
 757
 758 /**
 759  * i40e_dbg_dump_desc - handles dump desc write into command datum
 760  * @cnt: number of arguments that the user supplied
 761  * @vsi_seid: vsi id entered by user
 762  * @ring_id: ring id entered by user
 763  * @desc_n: descriptor number entered by user
 764  * @pf: the i40e_pf created in command write
 765  * @is_rx_ring: true if rx, false if tx
 766  **/
 767 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 768                                struct i40e_pf *pf, bool is_rx_ring)
 769 {
 770         union i40e_rx_desc *ds;
 771         struct i40e_ring ring;
 772         struct i40e_vsi *vsi;
 773         int i;
 774
 775         vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 776         if (!vsi) {
 777                 dev_info(&pf->pdev->dev,
 778                          "vsi %d not found\n", vsi_seid);
 779                 if (is_rx_ring)
 780                         dev_info(&pf->pdev->dev, "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
 781                 else
 782                         dev_info(&pf->pdev->dev, "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
 783                 return;
 784         }
 785         if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 786                 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 787                 if (is_rx_ring)
 788                         dev_info(&pf->pdev->dev, "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
 789                 else
 790                         dev_info(&pf->pdev->dev, "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
 791                 return;
 792         }
 793         if (is_rx_ring)
 794                 ring = vsi->rx_rings[ring_id];
 795         else
 796                 ring = vsi->tx_rings[ring_id];
 797         if (cnt == 2) {
 798                 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 799                          vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
 800                 for (i = 0; i < ring.count; i++) {
 801                         if (is_rx_ring)
 802                                 ds = I40E_RX_DESC(&ring, i);
 803                         else
 804                                 ds = (union i40e_rx_desc *)
 805                                         I40E_TX_DESC(&ring, i);
 806                         if ((sizeof(union i40e_rx_desc) ==
 807                             sizeof(union i40e_16byte_rx_desc)) || (!is_rx_ring))
 808                                 dev_info(&pf->pdev->dev,
 809                                          "   d[%03i] = 0x%016llx 0x%016llx\n", i,
 810                                          ds->read.pkt_addr, ds->read.hdr_addr);
 811                         else
 812                                 dev_info(&pf->pdev->dev,
 813                                          "   d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 814                                          i, ds->read.pkt_addr,
 815                                          ds->read.hdr_addr,
 816                                          ds->read.rsvd1, ds->read.rsvd2);
 817                 }
 818         } else if (cnt == 3) {
 819                 if (desc_n >= ring.count || desc_n < 0) {
 820                         dev_info(&pf->pdev->dev,
 821                                  "descriptor %d not found\n", desc_n);
 822                         return;
 823                 }
 824                 if (is_rx_ring)
 825                         ds = I40E_RX_DESC(&ring, desc_n);
 826                 else
 827                         ds = (union i40e_rx_desc *)I40E_TX_DESC(&ring, desc_n);
 828                 if ((sizeof(union i40e_rx_desc) ==
 829                     sizeof(union i40e_16byte_rx_desc)) || (!is_rx_ring))
 830                         dev_info(&pf->pdev->dev,
 831                                  "vsi = %02i %s ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
 832                                  vsi_seid, is_rx_ring ? "rx" : "tx", ring_id,
 833                                  desc_n, ds->read.pkt_addr, ds->read.hdr_addr);
 834                 else
 835                         dev_info(&pf->pdev->dev,
 836                                  "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 837                                  vsi_seid, ring_id,
 838                                  desc_n, ds->read.pkt_addr, ds->read.hdr_addr,
 839                                  ds->read.rsvd1, ds->read.rsvd2);
 840         } else {
 841                 if (is_rx_ring)
 842                         dev_info(&pf->pdev->dev, "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
 843                 else
 844                         dev_info(&pf->pdev->dev, "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
 845         }
 846 }
 847
 848 /**
 849  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 850  * @pf: the i40e_pf created in command write
 851  **/
 852 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 853 {
 854         int i;
 855
 856         for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
 857                 if (pf->vsi[i])
 858                         dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 859                                  i, pf->vsi[i]->seid);
 860 }
 861
 862 /**
 863  * i40e_dbg_dump_stats - handles dump stats write into command datum
 864  * @pf: the i40e_pf created in command write
 865  * @estats: the eth stats structure to be dumped
 866  **/
 867 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 868                                     struct i40e_eth_stats *estats)
 869 {
 870         dev_info(&pf->pdev->dev, "  ethstats:\n");
 871         dev_info(&pf->pdev->dev,
 872                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 873                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 874         dev_info(&pf->pdev->dev,
 875                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld \trx_errors = \t%lld\n",
 876                  estats->rx_broadcast, estats->rx_discards, estats->rx_errors);
 877         dev_info(&pf->pdev->dev,
 878                  "    rx_missed = \t%lld \trx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 879                  estats->rx_missed, estats->rx_unknown_protocol,
 880                  estats->tx_bytes);
 881         dev_info(&pf->pdev->dev,
 882                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 883                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 884         dev_info(&pf->pdev->dev,
 885                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 886                  estats->tx_discards, estats->tx_errors);
 887 }
 888
 889 /**
 890  * i40e_dbg_dump_stats - handles dump stats write into command datum
 891  * @pf: the i40e_pf created in command write
 892  * @stats: the stats structure to be dumped
 893  **/
 894 static void i40e_dbg_dump_stats(struct i40e_pf *pf,
 895                                 struct i40e_hw_port_stats *stats)
 896 {
 897         int i;
 898
 899         dev_info(&pf->pdev->dev, "  stats:\n");
 900         dev_info(&pf->pdev->dev,
 901                  "    crc_errors = \t\t%lld \tillegal_bytes = \t%lld \terror_bytes = \t\t%lld\n",
 902                  stats->crc_errors, stats->illegal_bytes, stats->error_bytes);
 903         dev_info(&pf->pdev->dev,
 904                  "    mac_local_faults = \t%lld \tmac_remote_faults = \t%lld \trx_length_errors = \t%lld\n",
 905                  stats->mac_local_faults, stats->mac_remote_faults,
 906                  stats->rx_length_errors);
 907         dev_info(&pf->pdev->dev,
 908                  "    link_xon_rx = \t\t%lld \tlink_xoff_rx = \t\t%lld \tlink_xon_tx = \t\t%lld\n",
 909                  stats->link_xon_rx, stats->link_xoff_rx, stats->link_xon_tx);
 910         dev_info(&pf->pdev->dev,
 911                  "    link_xoff_tx = \t\t%lld \trx_size_64 = \t\t%lld \trx_size_127 = \t\t%lld\n",
 912                  stats->link_xoff_tx, stats->rx_size_64, stats->rx_size_127);
 913         dev_info(&pf->pdev->dev,
 914                  "    rx_size_255 = \t\t%lld \trx_size_511 = \t\t%lld \trx_size_1023 = \t\t%lld\n",
 915                  stats->rx_size_255, stats->rx_size_511, stats->rx_size_1023);
 916         dev_info(&pf->pdev->dev,
 917                  "    rx_size_big = \t\t%lld \trx_undersize = \t\t%lld \trx_jabber = \t\t%lld\n",
 918                  stats->rx_size_big, stats->rx_undersize, stats->rx_jabber);
 919         dev_info(&pf->pdev->dev,
 920                  "    rx_fragments = \t\t%lld \trx_oversize = \t\t%lld \ttx_size_64 = \t\t%lld\n",
 921                  stats->rx_fragments, stats->rx_oversize, stats->tx_size_64);
 922         dev_info(&pf->pdev->dev,
 923                  "    tx_size_127 = \t\t%lld \ttx_size_255 = \t\t%lld \ttx_size_511 = \t\t%lld\n",
 924                  stats->tx_size_127, stats->tx_size_255, stats->tx_size_511);
 925         dev_info(&pf->pdev->dev,
 926                  "    tx_size_1023 = \t\t%lld \ttx_size_big = \t\t%lld \tmac_short_packet_dropped = \t%lld\n",
 927                  stats->tx_size_1023, stats->tx_size_big,
 928                  stats->mac_short_packet_dropped);
 929         for (i = 0; i < 8; i += 4) {
 930                 dev_info(&pf->pdev->dev,
 931                          "    priority_xon_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 932                          i, stats->priority_xon_rx[i],
 933                          i+1, stats->priority_xon_rx[i+1],
 934                          i+2, stats->priority_xon_rx[i+2],
 935                          i+3, stats->priority_xon_rx[i+3]);
 936         }
 937         for (i = 0; i < 8; i += 4) {
 938                 dev_info(&pf->pdev->dev,
 939                          "    priority_xoff_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 940                          i, stats->priority_xoff_rx[i],
 941                          i+1, stats->priority_xoff_rx[i+1],
 942                          i+2, stats->priority_xoff_rx[i+2],
 943                          i+3, stats->priority_xoff_rx[i+3]);
 944         }
 945         for (i = 0; i < 8; i += 4) {
 946                 dev_info(&pf->pdev->dev,
 947                          "    priority_xon_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 948                          i, stats->priority_xon_tx[i],
 949                          i+1, stats->priority_xon_tx[i+1],
 950                          i+2, stats->priority_xon_tx[i+2],
 951                          i+3, stats->priority_xon_rx[i+3]);
 952         }
 953         for (i = 0; i < 8; i += 4) {
 954                 dev_info(&pf->pdev->dev,
 955                          "    priority_xoff_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 956                          i, stats->priority_xoff_tx[i],
 957                          i+1, stats->priority_xoff_tx[i+1],
 958                          i+2, stats->priority_xoff_tx[i+2],
 959                          i+3, stats->priority_xoff_tx[i+3]);
 960         }
 961         for (i = 0; i < 8; i += 4) {
 962                 dev_info(&pf->pdev->dev,
 963                          "    priority_xon_2_xoff[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
 964                          i, stats->priority_xon_2_xoff[i],
 965                          i+1, stats->priority_xon_2_xoff[i+1],
 966                          i+2, stats->priority_xon_2_xoff[i+2],
 967                          i+3, stats->priority_xon_2_xoff[i+3]);
 968         }
 969
 970         i40e_dbg_dump_eth_stats(pf, &stats->eth);
 971 }
 972
 973 /**
 974  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 975  * @pf: the i40e_pf created in command write
 976  * @seid: the seid the user put in
 977  **/
 978 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 979 {
 980         struct i40e_veb *veb;
 981
 982         if ((seid < I40E_BASE_VEB_SEID) ||
 983             (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
 984                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
 985                 return;
 986         }
 987
 988         veb = i40e_dbg_find_veb(pf, seid);
 989         if (!veb) {
 990                 dev_info(&pf->pdev->dev,
 991                          "%d: can't find veb\n", seid);
 992                 return;
 993         }
 994         dev_info(&pf->pdev->dev,
 995                  "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d\n",
 996                  veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 997                  veb->uplink_seid);
 998         i40e_dbg_dump_eth_stats(pf, &veb->stats);
 999 }
1000
1001 /**
1002  * i40e_dbg_dump_veb_all - dumps all known veb's stats
1003  * @pf: the i40e_pf created in command write
1004  **/
1005 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
1006 {
1007         struct i40e_veb *veb;
1008         int i;
1009
1010         for (i = 0; i < I40E_MAX_VEB; i++) {
1011                 veb = pf->veb[i];
1012                 if (veb)
1013                         i40e_dbg_dump_veb_seid(pf, veb->seid);
1014         }
1015 }
1016
1017 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
1018 /**
1019  * i40e_dbg_command_write - write into command datum
1020  * @filp: the opened file
1021  * @buffer: where to find the user's data
1022  * @count: the length of the user's data
1023  * @ppos: file position offset
1024  **/
1025 static ssize_t i40e_dbg_command_write(struct file *filp,
1026                                       const char __user *buffer,
1027                                       size_t count, loff_t *ppos)
1028 {
1029         struct i40e_pf *pf = filp->private_data;
1030         int bytes_not_copied;
1031         struct i40e_vsi *vsi;
1032         u8 *print_buf_start;
1033         u8 *print_buf;
1034         char *cmd_buf;
1035         int vsi_seid;
1036         int veb_seid;
1037         int cnt;
1038
1039         /* don't allow partial writes */
1040         if (*ppos != 0)
1041                 return 0;
1042
1043         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
1044         if (!cmd_buf)
1045                 return count;
1046         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
1047         if (bytes_not_copied < 0)
1048                 return bytes_not_copied;
1049         if (bytes_not_copied > 0)
1050                 count -= bytes_not_copied;
1051         cmd_buf[count] = '\0';
1052
1053         print_buf_start = kzalloc(I40E_MAX_DEBUG_OUT_BUFFER, GFP_KERNEL);
1054         if (!print_buf_start)
1055                 goto command_write_done;
1056         print_buf = print_buf_start;
1057
1058         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
1059                 vsi_seid = -1;
1060                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1061                 if (cnt == 0) {
1062                         /* default to PF VSI */
1063                         vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1064                 } else if (vsi_seid < 0) {
1065                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1066                                  vsi_seid);
1067                         goto command_write_done;
1068                 }
1069
1070                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1071                 if (vsi)
1072                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1073                                  vsi->seid, vsi->uplink_seid);
1074                 else
1075                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1076
1077         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1078                 sscanf(&cmd_buf[7], "%i", &vsi_seid);
1079                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1080                 if (!vsi) {
1081                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1082                                  vsi_seid);
1083                         goto command_write_done;
1084                 }
1085
1086                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1087                 i40e_vsi_release(vsi);
1088
1089         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1090                 struct i40e_veb *veb;
1091                 int uplink_seid, i;
1092
1093                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1094                 if (cnt != 2) {
1095                         dev_info(&pf->pdev->dev,
1096                                  "add relay: bad command string, cnt=%d\n",
1097                                  cnt);
1098                         goto command_write_done;
1099                 } else if (uplink_seid < 0) {
1100                         dev_info(&pf->pdev->dev,
1101                                  "add relay %d: bad uplink seid\n",
1102                                  uplink_seid);
1103                         goto command_write_done;
1104                 }
1105
1106                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1107                 if (!vsi) {
1108                         dev_info(&pf->pdev->dev,
1109                                  "add relay: vsi VSI %d not found\n", vsi_seid);
1110                         goto command_write_done;
1111                 }
1112
1113                 for (i = 0; i < I40E_MAX_VEB; i++)
1114                         if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1115                                 break;
1116                 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1117                     uplink_seid != pf->mac_seid) {
1118                         dev_info(&pf->pdev->dev,
1119                                  "add relay: relay uplink %d not found\n",
1120                                  uplink_seid);
1121                         goto command_write_done;
1122                 }
1123
1124                 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1125                                      vsi->tc_config.enabled_tc);
1126                 if (veb)
1127                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1128                 else
1129                         dev_info(&pf->pdev->dev, "add relay failed\n");
1130
1131         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1132                 int i;
1133                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1134                 if (cnt != 1) {
1135                         dev_info(&pf->pdev->dev,
1136                                  "del relay: bad command string, cnt=%d\n",
1137                                  cnt);
1138                         goto command_write_done;
1139                 } else if (veb_seid < 0) {
1140                         dev_info(&pf->pdev->dev,
1141                                  "del relay %d: bad relay seid\n", veb_seid);
1142                         goto command_write_done;
1143                 }
1144
1145                 /* find the veb */
1146                 for (i = 0; i < I40E_MAX_VEB; i++)
1147                         if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1148                                 break;
1149                 if (i >= I40E_MAX_VEB) {
1150                         dev_info(&pf->pdev->dev,
1151                                  "del relay: relay %d not found\n", veb_seid);
1152                         goto command_write_done;
1153                 }
1154
1155                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1156                 i40e_veb_release(pf->veb[i]);
1157
1158         } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
1159                 u8 ma[6];
1160                 int vlan = 0;
1161                 struct i40e_mac_filter *f;
1162                 int ret;
1163
1164                 cnt = sscanf(&cmd_buf[11],
1165                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1166                              &vsi_seid,
1167                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1168                              &vlan);
1169                 if (cnt == 7) {
1170                         vlan = 0;
1171                 } else if (cnt != 8) {
1172                         dev_info(&pf->pdev->dev,
1173                                  "add macaddr: bad command string, cnt=%d\n",
1174                                  cnt);
1175                         goto command_write_done;
1176                 }
1177
1178                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1179                 if (!vsi) {
1180                         dev_info(&pf->pdev->dev,
1181                                  "add macaddr: VSI %d not found\n", vsi_seid);
1182                         goto command_write_done;
1183                 }
1184
1185                 f = i40e_add_filter(vsi, ma, vlan, false, false);
1186                 ret = i40e_sync_vsi_filters(vsi);
1187                 if (f && !ret)
1188                         dev_info(&pf->pdev->dev,
1189                                  "add macaddr: %pM vlan=%d added to VSI %d\n",
1190                                  ma, vlan, vsi_seid);
1191                 else
1192                         dev_info(&pf->pdev->dev,
1193                                  "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1194                                  ma, vlan, vsi_seid, f, ret);
1195
1196         } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
1197                 u8 ma[6];
1198                 int vlan = 0;
1199                 int ret;
1200
1201                 cnt = sscanf(&cmd_buf[11],
1202                              "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1203                              &vsi_seid,
1204                              &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1205                              &vlan);
1206                 if (cnt == 7) {
1207                         vlan = 0;
1208                 } else if (cnt != 8) {
1209                         dev_info(&pf->pdev->dev,
1210                                  "del macaddr: bad command string, cnt=%d\n",
1211                                  cnt);
1212                         goto command_write_done;
1213                 }
1214
1215                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1216                 if (!vsi) {
1217                         dev_info(&pf->pdev->dev,
1218                                  "del macaddr: VSI %d not found\n", vsi_seid);
1219                         goto command_write_done;
1220                 }
1221
1222                 i40e_del_filter(vsi, ma, vlan, false, false);
1223                 ret = i40e_sync_vsi_filters(vsi);
1224                 if (!ret)
1225                         dev_info(&pf->pdev->dev,
1226                                  "del macaddr: %pM vlan=%d removed from VSI %d\n",
1227                                  ma, vlan, vsi_seid);
1228                 else
1229                         dev_info(&pf->pdev->dev,
1230                                  "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1231                                  ma, vlan, vsi_seid, ret);
1232
1233         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
1234                 int v;
1235                 u16 vid;
1236                 i40e_status ret;
1237
1238                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1239                 if (cnt != 2) {
1240                         dev_info(&pf->pdev->dev,
1241                                  "add pvid: bad command string, cnt=%d\n", cnt);
1242                         goto command_write_done;
1243                 }
1244
1245                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1246                 if (!vsi) {
1247                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1248                                  vsi_seid);
1249                         goto command_write_done;
1250                 }
1251
1252                 vid = (unsigned)v;
1253                 ret = i40e_vsi_add_pvid(vsi, vid);
1254                 if (!ret)
1255                         dev_info(&pf->pdev->dev,
1256                                  "add pvid: %d added to VSI %d\n",
1257                                  vid, vsi_seid);
1258                 else
1259                         dev_info(&pf->pdev->dev,
1260                                  "add pvid: %d to VSI %d failed, ret=%d\n",
1261                                  vid, vsi_seid, ret);
1262
1263         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1264
1265                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1266                 if (cnt != 1) {
1267                         dev_info(&pf->pdev->dev,
1268                                  "del pvid: bad command string, cnt=%d\n",
1269                                  cnt);
1270                         goto command_write_done;
1271                 }
1272
1273                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1274                 if (!vsi) {
1275                         dev_info(&pf->pdev->dev,
1276                                  "del pvid: VSI %d not found\n", vsi_seid);
1277                         goto command_write_done;
1278                 }
1279
1280                 i40e_vsi_remove_pvid(vsi);
1281                 dev_info(&pf->pdev->dev,
1282                          "del pvid: removed from VSI %d\n", vsi_seid);
1283
1284         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1285                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1286                         i40e_fetch_switch_configuration(pf, true);
1287                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1288                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1289                         if (cnt > 0)
1290                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1291                         else
1292                                 i40e_dbg_dump_vsi_no_seid(pf);
1293                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1294                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1295                         if (cnt > 0)
1296                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1297                         else
1298                                 i40e_dbg_dump_veb_all(pf);
1299                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1300                         int ring_id, desc_n;
1301                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
1302                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1303                                              &vsi_seid, &ring_id, &desc_n);
1304                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1305                                                    desc_n, pf, true);
1306                         } else if (strncmp(&cmd_buf[10], "tx", 2)
1307                                         == 0) {
1308                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1309                                              &vsi_seid, &ring_id, &desc_n);
1310                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1311                                                    desc_n, pf, false);
1312                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1313                                 i40e_dbg_dump_aq_desc(pf);
1314                         } else {
1315                                 dev_info(&pf->pdev->dev,
1316                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1317                                 dev_info(&pf->pdev->dev,
1318                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1319                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
1320                         }
1321                 } else if (strncmp(&cmd_buf[5], "stats", 5) == 0) {
1322                         dev_info(&pf->pdev->dev, "pf stats:\n");
1323                         i40e_dbg_dump_stats(pf, &pf->stats);
1324                         dev_info(&pf->pdev->dev, "pf stats_offsets:\n");
1325                         i40e_dbg_dump_stats(pf, &pf->stats_offsets);
1326                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1327                         dev_info(&pf->pdev->dev,
1328                                  "core reset count: %d\n", pf->corer_count);
1329                         dev_info(&pf->pdev->dev,
1330                                  "global reset count: %d\n", pf->globr_count);
1331                         dev_info(&pf->pdev->dev,
1332                                  "emp reset count: %d\n", pf->empr_count);
1333                         dev_info(&pf->pdev->dev,
1334                                  "pf reset count: %d\n", pf->pfr_count);
1335                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1336                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
1337                         struct i40e_dcbx_config *cfg =
1338                                                 &pf->hw.local_dcbx_config;
1339                         struct i40e_dcbx_config *r_cfg =
1340                                                 &pf->hw.remote_dcbx_config;
1341                         int i, ret;
1342
1343                         bw_data = kzalloc(sizeof(
1344                                     struct i40e_aqc_query_port_ets_config_resp),
1345                                           GFP_KERNEL);
1346                         if (!bw_data) {
1347                                 ret = -ENOMEM;
1348                                 goto command_write_done;
1349                         }
1350
1351                         ret = i40e_aq_query_port_ets_config(&pf->hw,
1352                                                             pf->mac_seid,
1353                                                             bw_data, NULL);
1354                         if (ret) {
1355                                 dev_info(&pf->pdev->dev,
1356                                          "Query Port ETS Config AQ command failed =0x%x\n",
1357                                          pf->hw.aq.asq_last_status);
1358                                 kfree(bw_data);
1359                                 bw_data = NULL;
1360                                 goto command_write_done;
1361                         }
1362                         dev_info(&pf->pdev->dev,
1363                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1364                                  bw_data->tc_valid_bits,
1365                                  bw_data->tc_strict_priority_bits,
1366                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1367                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1368                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1369                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1370                                          bw_data->tc_bw_share_credits[i],
1371                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1372                         }
1373
1374                         kfree(bw_data);
1375                         bw_data = NULL;
1376
1377                         dev_info(&pf->pdev->dev,
1378                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1379                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1380                                  cfg->etscfg.maxtcs);
1381                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1382                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1383                                          i, cfg->etscfg.prioritytable[i],
1384                                          cfg->etscfg.tcbwtable[i],
1385                                          cfg->etscfg.tsatable[i]);
1386                         }
1387                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1388                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1389                                          i, cfg->etsrec.prioritytable[i],
1390                                          cfg->etsrec.tcbwtable[i],
1391                                          cfg->etsrec.tsatable[i]);
1392                         }
1393                         dev_info(&pf->pdev->dev,
1394                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1395                                  cfg->pfc.willing, cfg->pfc.mbc,
1396                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1397                         dev_info(&pf->pdev->dev,
1398                                  "port app_table: num_apps=%d\n", cfg->numapps);
1399                         for (i = 0; i < cfg->numapps; i++) {
1400                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1401                                          i, cfg->app[i].priority,
1402                                          cfg->app[i].selector,
1403                                          cfg->app[i].protocolid);
1404                         }
1405                         /* Peer TLV DCBX data */
1406                         dev_info(&pf->pdev->dev,
1407                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1408                                  r_cfg->etscfg.willing,
1409                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1410                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1411                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1412                                          i, r_cfg->etscfg.prioritytable[i],
1413                                          r_cfg->etscfg.tcbwtable[i],
1414                                          r_cfg->etscfg.tsatable[i]);
1415                         }
1416                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1417                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1418                                          i, r_cfg->etsrec.prioritytable[i],
1419                                          r_cfg->etsrec.tcbwtable[i],
1420                                          r_cfg->etsrec.tsatable[i]);
1421                         }
1422                         dev_info(&pf->pdev->dev,
1423                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1424                                  r_cfg->pfc.willing,
1425                                  r_cfg->pfc.mbc,
1426                                  r_cfg->pfc.pfccap,
1427                                  r_cfg->pfc.pfcenable);
1428                         dev_info(&pf->pdev->dev,
1429                                  "remote port app_table: num_apps=%d\n",
1430                                  r_cfg->numapps);
1431                         for (i = 0; i < r_cfg->numapps; i++) {
1432                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1433                                          i, r_cfg->app[i].priority,
1434                                          r_cfg->app[i].selector,
1435                                          r_cfg->app[i].protocolid);
1436                         }
1437                 } else {
1438                         dev_info(&pf->pdev->dev,
1439                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1440                         dev_info(&pf->pdev->dev, "dump switch, dump vsi [seid] or\n");
1441                         dev_info(&pf->pdev->dev, "dump stats\n");
1442                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1443                         dev_info(&pf->pdev->dev, "dump port\n");
1444                         dev_info(&pf->pdev->dev,
1445                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1446                 }
1447
1448         } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1449                 u32 level;
1450                 cnt = sscanf(&cmd_buf[10], "%i", &level);
1451                 if (cnt) {
1452                         if (I40E_DEBUG_USER & level) {
1453                                 pf->hw.debug_mask = level;
1454                                 dev_info(&pf->pdev->dev,
1455                                          "set hw.debug_mask = 0x%08x\n",
1456                                          pf->hw.debug_mask);
1457                         }
1458                         pf->msg_enable = level;
1459                         dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1460                                  pf->msg_enable);
1461                 } else {
1462                         dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1463                                  pf->msg_enable);
1464                 }
1465         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1466                 dev_info(&pf->pdev->dev, "forcing PFR\n");
1467                 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
1468
1469         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1470                 dev_info(&pf->pdev->dev, "forcing CoreR\n");
1471                 i40e_do_reset(pf, (1 << __I40E_CORE_RESET_REQUESTED));
1472
1473         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1474                 dev_info(&pf->pdev->dev, "forcing GlobR\n");
1475                 i40e_do_reset(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED));
1476
1477         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1478                 u32 address;
1479                 u32 value;
1480                 cnt = sscanf(&cmd_buf[4], "%x", &address);
1481                 if (cnt != 1) {
1482                         dev_info(&pf->pdev->dev, "read <reg>\n");
1483                         goto command_write_done;
1484                 }
1485
1486                 /* check the range on address */
1487                 if (address >= I40E_MAX_REGISTER) {
1488                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n",
1489                                  address);
1490                         goto command_write_done;
1491                 }
1492
1493                 value = rd32(&pf->hw, address);
1494                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1495                          address, value);
1496
1497         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1498                 u32 address, value;
1499                 cnt = sscanf(&cmd_buf[5], "%x %x", &address, &value);
1500                 if (cnt != 2) {
1501                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1502                         goto command_write_done;
1503                 }
1504
1505                 /* check the range on address */
1506                 if (address >= I40E_MAX_REGISTER) {
1507                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n",
1508                                  address);
1509                         goto command_write_done;
1510                 }
1511                 wr32(&pf->hw, address, value);
1512                 value = rd32(&pf->hw, address);
1513                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1514                          address, value);
1515         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1516                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1517                         cnt = sscanf(&cmd_buf[15], "%d", &vsi_seid);
1518                         if (cnt == 0) {
1519                                 int i;
1520                                 for (i = 0; i < pf->hw.func_caps.num_vsis; i++)
1521                                         i40e_vsi_reset_stats(pf->vsi[i]);
1522                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1523                         } else if (cnt == 1) {
1524                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1525                                 if (!vsi) {
1526                                         dev_info(&pf->pdev->dev,
1527                                                  "clear_stats vsi: bad vsi %d\n",
1528                                                  vsi_seid);
1529                                         goto command_write_done;
1530                                 }
1531                                 i40e_vsi_reset_stats(vsi);
1532                                 dev_info(&pf->pdev->dev,
1533                                          "vsi clear stats called for vsi %d\n",
1534                                          vsi_seid);
1535                         } else {
1536                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1537                         }
1538                 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) {
1539                         i40e_pf_reset_stats(pf);
1540                         dev_info(&pf->pdev->dev, "pf clear stats called\n");
1541                 } else {
1542                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n");
1543                 }
1544         } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1545                    (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
1546                 struct i40e_fdir_data fd_data;
1547                 int ret;
1548                 u16 packet_len, i, j = 0;
1549                 char *asc_packet;
1550                 bool add = false;
1551
1552                 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP,
1553                                      GFP_KERNEL);
1554                 if (!asc_packet)
1555                         goto command_write_done;
1556
1557                 fd_data.raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP,
1558                                              GFP_KERNEL);
1559
1560                 if (!fd_data.raw_packet) {
1561                         kfree(asc_packet);
1562                         asc_packet = NULL;
1563                         goto command_write_done;
1564                 }
1565
1566                 if (strncmp(cmd_buf, "add", 3) == 0)
1567                         add = true;
1568                 cnt = sscanf(&cmd_buf[13],
1569                              "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %512s",
1570                              &fd_data.q_index,
1571                              &fd_data.flex_off, &fd_data.pctype,
1572                              &fd_data.dest_vsi, &fd_data.dest_ctl,
1573                              &fd_data.fd_status, &fd_data.cnt_index,
1574                              &fd_data.fd_id, &packet_len, asc_packet);
1575                 if (cnt != 10) {
1576                         dev_info(&pf->pdev->dev,
1577                                  "program fd_filter: bad command string, cnt=%d\n",
1578                                  cnt);
1579                         kfree(asc_packet);
1580                         asc_packet = NULL;
1581                         kfree(fd_data.raw_packet);
1582                         goto command_write_done;
1583                 }
1584
1585                 /* fix packet length if user entered 0 */
1586                 if (packet_len == 0)
1587                         packet_len = I40E_FDIR_MAX_RAW_PACKET_LOOKUP;
1588
1589                 /* make sure to check the max as well */
1590                 packet_len = min_t(u16,
1591                                    packet_len, I40E_FDIR_MAX_RAW_PACKET_LOOKUP);
1592
1593                 dev_info(&pf->pdev->dev, "FD raw packet:\n");
1594                 for (i = 0; i < packet_len; i++) {
1595                         sscanf(&asc_packet[j], "%2hhx ",
1596                                &fd_data.raw_packet[i]);
1597                         j += 3;
1598                         snprintf(print_buf, 3, "%02x ", fd_data.raw_packet[i]);
1599                         print_buf += 3;
1600                         if ((i % 16) == 15) {
1601                                 snprintf(print_buf, 1, "\n");
1602                                 print_buf++;
1603                         }
1604                 }
1605                 dev_info(&pf->pdev->dev, "%s\n", print_buf_start);
1606                 ret = i40e_program_fdir_filter(&fd_data, pf, add);
1607                 if (!ret) {
1608                         dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1609                 } else {
1610                         dev_info(&pf->pdev->dev,
1611                                  "Filter command send failed %d\n", ret);
1612                 }
1613                 kfree(fd_data.raw_packet);
1614                 fd_data.raw_packet = NULL;
1615                 kfree(asc_packet);
1616                 asc_packet = NULL;
1617         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1618                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1619                         int ret;
1620                         ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1621                         if (ret) {
1622                                 dev_info(&pf->pdev->dev,
1623                                          "Stop LLDP AQ command failed =0x%x\n",
1624                                          pf->hw.aq.asq_last_status);
1625                                 goto command_write_done;
1626                         }
1627                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1628                         int ret;
1629                         ret = i40e_aq_start_lldp(&pf->hw, NULL);
1630                         if (ret) {
1631                                 dev_info(&pf->pdev->dev,
1632                                          "Start LLDP AQ command failed =0x%x\n",
1633                                          pf->hw.aq.asq_last_status);
1634                                 goto command_write_done;
1635                         }
1636                 } else if (strncmp(&cmd_buf[5],
1637                            "get local", 9) == 0) {
1638                         int ret, i;
1639                         u8 *buff;
1640                         u16 llen, rlen;
1641                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1642                         if (!buff)
1643                                 goto command_write_done;
1644
1645                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1646                                                    I40E_AQ_LLDP_MIB_LOCAL,
1647                                                    buff, I40E_LLDPDU_SIZE,
1648                                                    &llen, &rlen, NULL);
1649                         if (ret) {
1650                                 dev_info(&pf->pdev->dev,
1651                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1652                                          pf->hw.aq.asq_last_status);
1653                                 kfree(buff);
1654                                 buff = NULL;
1655                                 goto command_write_done;
1656                         }
1657                         dev_info(&pf->pdev->dev,
1658                                  "Get LLDP MIB (local) AQ buffer written back:\n");
1659                         for (i = 0; i < I40E_LLDPDU_SIZE; i++) {
1660                                 snprintf(print_buf, 3, "%02x ", buff[i]);
1661                                 print_buf += 3;
1662                                 if ((i % 16) == 15) {
1663                                         snprintf(print_buf, 1, "\n");
1664                                         print_buf++;
1665                                 }
1666                         }
1667                         dev_info(&pf->pdev->dev, "%s\n", print_buf_start);
1668                         kfree(buff);
1669                         buff = NULL;
1670                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1671                         int ret, i;
1672                         u8 *buff;
1673                         u16 llen, rlen;
1674                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1675                         if (!buff)
1676                                 goto command_write_done;
1677
1678                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1679                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1680                                         I40E_AQ_LLDP_MIB_LOCAL,
1681                                         buff, I40E_LLDPDU_SIZE,
1682                                         &llen, &rlen, NULL);
1683                         if (ret) {
1684                                 dev_info(&pf->pdev->dev,
1685                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1686                                          pf->hw.aq.asq_last_status);
1687                                 kfree(buff);
1688                                 buff = NULL;
1689                                 goto command_write_done;
1690                         }
1691                         dev_info(&pf->pdev->dev,
1692                                  "Get LLDP MIB (remote) AQ buffer written back:\n");
1693                         for (i = 0; i < I40E_LLDPDU_SIZE; i++) {
1694                                 snprintf(print_buf, 3, "%02x ", buff[i]);
1695                                 print_buf += 3;
1696                                 if ((i % 16) == 15) {
1697                                         snprintf(print_buf, 1, "\n");
1698                                         print_buf++;
1699                                 }
1700                         }
1701                         dev_info(&pf->pdev->dev, "%s\n", print_buf_start);
1702                         kfree(buff);
1703                         buff = NULL;
1704                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1705                         int ret;
1706                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1707                                                                 true, NULL);
1708                         if (ret) {
1709                                 dev_info(&pf->pdev->dev,
1710                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1711                                          pf->hw.aq.asq_last_status);
1712                                 goto command_write_done;
1713                         }
1714                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1715                         int ret;
1716                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1717                                                                 false, NULL);
1718                         if (ret) {
1719                                 dev_info(&pf->pdev->dev,
1720                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1721                                          pf->hw.aq.asq_last_status);
1722                                 goto command_write_done;
1723                         }
1724                 }
1725         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1726                 u16 buffer_len, i, bytes;
1727                 u16 module;
1728                 u32 offset;
1729                 u16 *buff;
1730                 int ret;
1731
1732                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1733                              &module, &offset, &buffer_len);
1734                 if (cnt == 0) {
1735                         module = 0;
1736                         offset = 0;
1737                         buffer_len = 0;
1738                 } else if (cnt == 1) {
1739                         offset = 0;
1740                         buffer_len = 0;
1741                 } else if (cnt == 2) {
1742                         buffer_len = 0;
1743                 } else if (cnt > 3) {
1744                         dev_info(&pf->pdev->dev,
1745                                  "nvm read: bad command string, cnt=%d\n", cnt);
1746                         goto command_write_done;
1747                 }
1748
1749                 /* Read at least 512 words */
1750                 if (buffer_len == 0)
1751                         buffer_len = 512;
1752
1753                 bytes = 2 * buffer_len;
1754                 buff = kzalloc(bytes, GFP_KERNEL);
1755                 if (!buff)
1756                         goto command_write_done;
1757
1758                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1759                 if (ret) {
1760                         dev_info(&pf->pdev->dev,
1761                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1762                                  ret, pf->hw.aq.asq_last_status);
1763                         kfree(buff);
1764                         goto command_write_done;
1765                 }
1766
1767                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1768                                        bytes, (u8 *)buff, true, NULL);
1769                 i40e_release_nvm(&pf->hw);
1770                 if (ret) {
1771                         dev_info(&pf->pdev->dev,
1772                                  "Read NVM AQ failed err=%d status=0x%x\n",
1773                                  ret, pf->hw.aq.asq_last_status);
1774                 } else {
1775                         dev_info(&pf->pdev->dev,
1776                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1777                                  module, offset, buffer_len);
1778                         for (i = 0; i < buffer_len; i++) {
1779                                 if ((i % 16) == 0) {
1780                                         snprintf(print_buf, 11, "\n0x%08x: ",
1781                                                  offset + i);
1782                                         print_buf += 11;
1783                                 }
1784                                 snprintf(print_buf, 5, "%04x ", buff[i]);
1785                                 print_buf += 5;
1786                         }
1787                         dev_info(&pf->pdev->dev, "%s\n", print_buf_start);
1788                 }
1789                 kfree(buff);
1790                 buff = NULL;
1791         } else {
1792                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1793                 dev_info(&pf->pdev->dev, "available commands\n");
1794                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1795                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1796                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1797                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1798                 dev_info(&pf->pdev->dev, "  add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1799                 dev_info(&pf->pdev->dev, "  del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1800                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1801                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1802                 dev_info(&pf->pdev->dev, "  dump switch\n");
1803                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1804                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1805                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1806                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1807                 dev_info(&pf->pdev->dev, "  dump stats\n");
1808                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1809                 dev_info(&pf->pdev->dev, "  msg_enable [level]\n");
1810                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1811                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1812                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1813                 dev_info(&pf->pdev->dev, "  clear_stats pf\n");
1814                 dev_info(&pf->pdev->dev, "  pfr\n");
1815                 dev_info(&pf->pdev->dev, "  corer\n");
1816                 dev_info(&pf->pdev->dev, "  globr\n");
1817                 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");
1818                 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");
1819                 dev_info(&pf->pdev->dev, "  lldp start\n");
1820                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1821                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1822                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1823                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1824                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1825                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1826         }
1827
1828 command_write_done:
1829         kfree(cmd_buf);
1830         cmd_buf = NULL;
1831         kfree(print_buf_start);
1832         print_buf = NULL;
1833         print_buf_start = NULL;
1834         return count;
1835 }
1836
1837 static const struct file_operations i40e_dbg_command_fops = {
1838         .owner = THIS_MODULE,
1839         .open =  simple_open,
1840         .read =  i40e_dbg_command_read,
1841         .write = i40e_dbg_command_write,
1842 };
1843
1844 /**************************************************************
1845  * netdev_ops
1846  * The netdev_ops entry in debugfs is for giving the driver commands
1847  * to be executed from the netdev operations.
1848  **************************************************************/
1849 static char i40e_dbg_netdev_ops_buf[256] = "hello world";
1850
1851 /**
1852  * i40e_dbg_netdev_ops - read for netdev_ops datum
1853  * @filp: the opened file
1854  * @buffer: where to write the data for the user to read
1855  * @count: the size of the user's buffer
1856  * @ppos: file position offset
1857  **/
1858 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1859                                         size_t count, loff_t *ppos)
1860 {
1861         struct i40e_pf *pf = filp->private_data;
1862         int bytes_not_copied;
1863         int buf_size = 256;
1864         char *buf;
1865         int len;
1866
1867         /* don't allow partal reads */
1868         if (*ppos != 0)
1869                 return 0;
1870         if (count < buf_size)
1871                 return -ENOSPC;
1872
1873         buf = kzalloc(buf_size, GFP_KERNEL);
1874         if (!buf)
1875                 return -ENOSPC;
1876
1877         len = snprintf(buf, buf_size, "%s: %s\n",
1878                        pf->vsi[pf->lan_vsi]->netdev->name,
1879                        i40e_dbg_netdev_ops_buf);
1880
1881         bytes_not_copied = copy_to_user(buffer, buf, len);
1882         kfree(buf);
1883
1884         if (bytes_not_copied < 0)
1885                 return bytes_not_copied;
1886
1887         *ppos = len;
1888         return len;
1889 }
1890
1891 /**
1892  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1893  * @filp: the opened file
1894  * @buffer: where to find the user's data
1895  * @count: the length of the user's data
1896  * @ppos: file position offset
1897  **/
1898 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1899                                          const char __user *buffer,
1900                                          size_t count, loff_t *ppos)
1901 {
1902         struct i40e_pf *pf = filp->private_data;
1903         int bytes_not_copied;
1904         struct i40e_vsi *vsi;
1905         int vsi_seid;
1906         int i, cnt;
1907
1908         /* don't allow partial writes */
1909         if (*ppos != 0)
1910                 return 0;
1911         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1912                 return -ENOSPC;
1913
1914         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1915         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1916                                           buffer, count);
1917         if (bytes_not_copied < 0)
1918                 return bytes_not_copied;
1919         else if (bytes_not_copied > 0)
1920                 count -= bytes_not_copied;
1921         i40e_dbg_netdev_ops_buf[count] = '\0';
1922
1923         if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
1924                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1925                 if (cnt != 1) {
1926                         dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
1927                         goto netdev_ops_write_done;
1928                 }
1929                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1930                 if (!vsi) {
1931                         dev_info(&pf->pdev->dev,
1932                                  "tx_timeout: VSI %d not found\n", vsi_seid);
1933                         goto netdev_ops_write_done;
1934                 }
1935                 if (rtnl_trylock()) {
1936                         vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
1937                         rtnl_unlock();
1938                         dev_info(&pf->pdev->dev, "tx_timeout called\n");
1939                 } else {
1940                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1941                 }
1942         } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1943                 int mtu;
1944                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1945                              &vsi_seid, &mtu);
1946                 if (cnt != 2) {
1947                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1948                         goto netdev_ops_write_done;
1949                 }
1950                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1951                 if (!vsi) {
1952                         dev_info(&pf->pdev->dev,
1953                                  "change_mtu: VSI %d not found\n", vsi_seid);
1954                         goto netdev_ops_write_done;
1955                 }
1956                 if (rtnl_trylock()) {
1957                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
1958                                                                 mtu);
1959                         rtnl_unlock();
1960                         dev_info(&pf->pdev->dev, "change_mtu called\n");
1961                 } else {
1962                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1963                 }
1964
1965         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1966                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1967                 if (cnt != 1) {
1968                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1969                         goto netdev_ops_write_done;
1970                 }
1971                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1972                 if (!vsi) {
1973                         dev_info(&pf->pdev->dev,
1974                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
1975                         goto netdev_ops_write_done;
1976                 }
1977                 if (rtnl_trylock()) {
1978                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1979                         rtnl_unlock();
1980                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1981                 } else {
1982                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1983                 }
1984
1985         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1986                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1987                 if (cnt != 1) {
1988                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1989                         goto netdev_ops_write_done;
1990                 }
1991                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1992                 if (!vsi) {
1993                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
1994                                  vsi_seid);
1995                         goto netdev_ops_write_done;
1996                 }
1997                 for (i = 0; i < vsi->num_q_vectors; i++)
1998                         napi_schedule(&vsi->q_vectors[i].napi);
1999                 dev_info(&pf->pdev->dev, "napi called\n");
2000         } else {
2001                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
2002                          i40e_dbg_netdev_ops_buf);
2003                 dev_info(&pf->pdev->dev, "available commands\n");
2004                 dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
2005                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
2006                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
2007                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
2008         }
2009 netdev_ops_write_done:
2010         return count;
2011 }
2012
2013 static const struct file_operations i40e_dbg_netdev_ops_fops = {
2014         .owner = THIS_MODULE,
2015         .open = simple_open,
2016         .read = i40e_dbg_netdev_ops_read,
2017         .write = i40e_dbg_netdev_ops_write,
2018 };
2019
2020 /**
2021  * i40e_dbg_pf_init - setup the debugfs directory for the pf
2022  * @pf: the pf that is starting up
2023  **/
2024 void i40e_dbg_pf_init(struct i40e_pf *pf)
2025 {
2026         struct dentry *pfile __attribute__((unused));
2027         const char *name = pci_name(pf->pdev);
2028
2029         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
2030         if (pf->i40e_dbg_pf) {
2031                 pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf,
2032                                             pf, &i40e_dbg_command_fops);
2033                 pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2034                                             &i40e_dbg_dump_fops);
2035                 pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf,
2036                                             pf, &i40e_dbg_netdev_ops_fops);
2037         } else {
2038                 dev_info(&pf->pdev->dev,
2039                          "debugfs entry for %s failed\n", name);
2040         }
2041 }
2042
2043 /**
2044  * i40e_dbg_pf_exit - clear out the pf's debugfs entries
2045  * @pf: the pf that is stopping
2046  **/
2047 void i40e_dbg_pf_exit(struct i40e_pf *pf)
2048 {
2049         debugfs_remove_recursive(pf->i40e_dbg_pf);
2050         pf->i40e_dbg_pf = NULL;
2051
2052         kfree(i40e_dbg_dump_buf);
2053         i40e_dbg_dump_buf = NULL;
2054 }
2055
2056 /**
2057  * i40e_dbg_init - start up debugfs for the driver
2058  **/
2059 void i40e_dbg_init(void)
2060 {
2061         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2062         if (!i40e_dbg_root)
2063                 pr_info("init of debugfs failed\n");
2064 }
2065
2066 /**
2067  * i40e_dbg_exit - clean out the driver's debugfs entries
2068  **/
2069 void i40e_dbg_exit(void)
2070 {
2071         debugfs_remove_recursive(i40e_dbg_root);
2072         i40e_dbg_root = NULL;
2073 }
2074
2075 #endif /* CONFIG_DEBUG_FS */