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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
   3
   4 #ifdef CONFIG_DEBUG_FS
   5
   6 #include <linux/fs.h>
   7 #include <linux/debugfs.h>
   8 #include <linux/if_bridge.h>
   9 #include "i40e.h"
  10 #include "i40e_virtchnl_pf.h"
  11
  12 static struct dentry *i40e_dbg_root;
  13
  14 enum ring_type {
  15         RING_TYPE_RX,
  16         RING_TYPE_TX,
  17         RING_TYPE_XDP
  18 };
  19
  20 /**
  21  * i40e_dbg_find_vsi - searches for the vsi with the given seid
  22  * @pf: the PF structure to search for the vsi
  23  * @seid: seid of the vsi it is searching for
  24  **/
  25 static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
  26 {
  27         if (seid < 0) {
  28                 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
  29
  30                 return NULL;
  31         }
  32
  33         return i40e_pf_get_vsi_by_seid(pf, seid);
  34 }
  35
  36 /**************************************************************
  37  * command
  38  * The command entry in debugfs is for giving the driver commands
  39  * to be executed - these may be for changing the internal switch
  40  * setup, adding or removing filters, or other things.  Many of
  41  * these will be useful for some forms of unit testing.
  42  **************************************************************/
  43 static char i40e_dbg_command_buf[256] = "";
  44
  45 /**
  46  * i40e_dbg_command_read - read for command datum
  47  * @filp: the opened file
  48  * @buffer: where to write the data for the user to read
  49  * @count: the size of the user's buffer
  50  * @ppos: file position offset
  51  **/
  52 static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
  53                                      size_t count, loff_t *ppos)
  54 {
  55         struct i40e_pf *pf = filp->private_data;
  56         struct i40e_vsi *main_vsi;
  57         int bytes_not_copied;
  58         int buf_size = 256;
  59         char *buf;
  60         int len;
  61
  62         /* don't allow partial reads */
  63         if (*ppos != 0)
  64                 return 0;
  65         if (count < buf_size)
  66                 return -ENOSPC;
  67
  68         buf = kzalloc(buf_size, GFP_KERNEL);
  69         if (!buf)
  70                 return -ENOSPC;
  71
  72         main_vsi = i40e_pf_get_main_vsi(pf);
  73         len = snprintf(buf, buf_size, "%s: %s\n", main_vsi->netdev->name,
  74                        i40e_dbg_command_buf);
  75
  76         bytes_not_copied = copy_to_user(buffer, buf, len);
  77         kfree(buf);
  78
  79         if (bytes_not_copied)
  80                 return -EFAULT;
  81
  82         *ppos = len;
  83         return len;
  84 }
  85
  86 static char *i40e_filter_state_string[] = {
  87         "INVALID",
  88         "NEW",
  89         "ACTIVE",
  90         "FAILED",
  91         "REMOVE",
  92 };
  93
  94 /**
  95  * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
  96  * @pf: the i40e_pf created in command write
  97  * @seid: the seid the user put in
  98  **/
  99 static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 100 {
 101         struct rtnl_link_stats64 *nstat;
 102         struct i40e_mac_filter *f;
 103         struct i40e_vsi *vsi;
 104         int i, bkt;
 105
 106         vsi = i40e_dbg_find_vsi(pf, seid);
 107         if (!vsi) {
 108                 dev_info(&pf->pdev->dev,
 109                          "dump %d: seid not found\n", seid);
 110                 return;
 111         }
 112         dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
 113         if (vsi->netdev) {
 114                 struct net_device *nd = vsi->netdev;
 115
 116                 dev_info(&pf->pdev->dev, "    netdev: name = %s, state = %lu, flags = 0x%08x\n",
 117                          nd->name, nd->state, nd->flags);
 118                 dev_info(&pf->pdev->dev, "        features      = 0x%08lx\n",
 119                          (unsigned long int)nd->features);
 120                 dev_info(&pf->pdev->dev, "        hw_features   = 0x%08lx\n",
 121                          (unsigned long int)nd->hw_features);
 122                 dev_info(&pf->pdev->dev, "        vlan_features = 0x%08lx\n",
 123                          (unsigned long int)nd->vlan_features);
 124         }
 125         dev_info(&pf->pdev->dev,
 126                  "    flags = 0x%08lx, netdev_registered = %i, current_netdev_flags = 0x%04x\n",
 127                  vsi->flags, vsi->netdev_registered, vsi->current_netdev_flags);
 128         for (i = 0; i < BITS_TO_LONGS(__I40E_VSI_STATE_SIZE__); i++)
 129                 dev_info(&pf->pdev->dev,
 130                          "    state[%d] = %08lx\n",
 131                          i, vsi->state[i]);
 132         if (vsi->type == I40E_VSI_MAIN)
 133                 dev_info(&pf->pdev->dev, "    MAC address: %pM Port MAC: %pM\n",
 134                          pf->hw.mac.addr,
 135                          pf->hw.mac.port_addr);
 136         hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
 137                 dev_info(&pf->pdev->dev,
 138                          "    mac_filter_hash: %pM vid=%d, state %s\n",
 139                          f->macaddr, f->vlan,
 140                          i40e_filter_state_string[f->state]);
 141         }
 142         dev_info(&pf->pdev->dev, "    active_filters %u, promisc_threshold %u, overflow promisc %s\n",
 143                  vsi->active_filters, vsi->promisc_threshold,
 144                  (test_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state) ?
 145                   "ON" : "OFF"));
 146         nstat = i40e_get_vsi_stats_struct(vsi);
 147         dev_info(&pf->pdev->dev,
 148                  "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 149                  (unsigned long int)nstat->rx_packets,
 150                  (unsigned long int)nstat->rx_bytes,
 151                  (unsigned long int)nstat->rx_errors,
 152                  (unsigned long int)nstat->rx_dropped);
 153         dev_info(&pf->pdev->dev,
 154                  "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 155                  (unsigned long int)nstat->tx_packets,
 156                  (unsigned long int)nstat->tx_bytes,
 157                  (unsigned long int)nstat->tx_errors,
 158                  (unsigned long int)nstat->tx_dropped);
 159         dev_info(&pf->pdev->dev,
 160                  "    net_stats: multicast = %lu, collisions = %lu\n",
 161                  (unsigned long int)nstat->multicast,
 162                  (unsigned long int)nstat->collisions);
 163         dev_info(&pf->pdev->dev,
 164                  "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 165                  (unsigned long int)nstat->rx_length_errors,
 166                  (unsigned long int)nstat->rx_over_errors,
 167                  (unsigned long int)nstat->rx_crc_errors);
 168         dev_info(&pf->pdev->dev,
 169                  "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 170                  (unsigned long int)nstat->rx_frame_errors,
 171                  (unsigned long int)nstat->rx_fifo_errors,
 172                  (unsigned long int)nstat->rx_missed_errors);
 173         dev_info(&pf->pdev->dev,
 174                  "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 175                  (unsigned long int)nstat->tx_aborted_errors,
 176                  (unsigned long int)nstat->tx_carrier_errors,
 177                  (unsigned long int)nstat->tx_fifo_errors);
 178         dev_info(&pf->pdev->dev,
 179                  "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 180                  (unsigned long int)nstat->tx_heartbeat_errors,
 181                  (unsigned long int)nstat->tx_window_errors);
 182         dev_info(&pf->pdev->dev,
 183                  "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
 184                  (unsigned long int)nstat->rx_compressed,
 185                  (unsigned long int)nstat->tx_compressed);
 186         dev_info(&pf->pdev->dev,
 187                  "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 188                  (unsigned long int)vsi->net_stats_offsets.rx_packets,
 189                  (unsigned long int)vsi->net_stats_offsets.rx_bytes,
 190                  (unsigned long int)vsi->net_stats_offsets.rx_errors,
 191                  (unsigned long int)vsi->net_stats_offsets.rx_dropped);
 192         dev_info(&pf->pdev->dev,
 193                  "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 194                  (unsigned long int)vsi->net_stats_offsets.tx_packets,
 195                  (unsigned long int)vsi->net_stats_offsets.tx_bytes,
 196                  (unsigned long int)vsi->net_stats_offsets.tx_errors,
 197                  (unsigned long int)vsi->net_stats_offsets.tx_dropped);
 198         dev_info(&pf->pdev->dev,
 199                  "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
 200                  (unsigned long int)vsi->net_stats_offsets.multicast,
 201                  (unsigned long int)vsi->net_stats_offsets.collisions);
 202         dev_info(&pf->pdev->dev,
 203                  "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 204                  (unsigned long int)vsi->net_stats_offsets.rx_length_errors,
 205                  (unsigned long int)vsi->net_stats_offsets.rx_over_errors,
 206                  (unsigned long int)vsi->net_stats_offsets.rx_crc_errors);
 207         dev_info(&pf->pdev->dev,
 208                  "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 209                  (unsigned long int)vsi->net_stats_offsets.rx_frame_errors,
 210                  (unsigned long int)vsi->net_stats_offsets.rx_fifo_errors,
 211                  (unsigned long int)vsi->net_stats_offsets.rx_missed_errors);
 212         dev_info(&pf->pdev->dev,
 213                  "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 214                  (unsigned long int)vsi->net_stats_offsets.tx_aborted_errors,
 215                  (unsigned long int)vsi->net_stats_offsets.tx_carrier_errors,
 216                  (unsigned long int)vsi->net_stats_offsets.tx_fifo_errors);
 217         dev_info(&pf->pdev->dev,
 218                  "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 219                  (unsigned long int)vsi->net_stats_offsets.tx_heartbeat_errors,
 220                  (unsigned long int)vsi->net_stats_offsets.tx_window_errors);
 221         dev_info(&pf->pdev->dev,
 222                  "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
 223                  (unsigned long int)vsi->net_stats_offsets.rx_compressed,
 224                  (unsigned long int)vsi->net_stats_offsets.tx_compressed);
 225         dev_info(&pf->pdev->dev,
 226                  "    tx_restart = %llu, tx_busy = %llu, rx_buf_failed = %llu, rx_page_failed = %llu\n",
 227                  vsi->tx_restart, vsi->tx_busy,
 228                  vsi->rx_buf_failed, vsi->rx_page_failed);
 229         rcu_read_lock();
 230         for (i = 0; i < vsi->num_queue_pairs; i++) {
 231                 struct i40e_ring *rx_ring = READ_ONCE(vsi->rx_rings[i]);
 232
 233                 if (!rx_ring)
 234                         continue;
 235
 236                 dev_info(&pf->pdev->dev,
 237                          "    rx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 238                          i, *rx_ring->state,
 239                          rx_ring->queue_index,
 240                          rx_ring->reg_idx);
 241                 dev_info(&pf->pdev->dev,
 242                          "    rx_rings[%i]: rx_buf_len = %d\n",
 243                          i, rx_ring->rx_buf_len);
 244                 dev_info(&pf->pdev->dev,
 245                          "    rx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 246                          i,
 247                          rx_ring->next_to_use,
 248                          rx_ring->next_to_clean,
 249                          rx_ring->ring_active);
 250                 dev_info(&pf->pdev->dev,
 251                          "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
 252                          i, rx_ring->stats.packets,
 253                          rx_ring->stats.bytes,
 254                          rx_ring->rx_stats.non_eop_descs);
 255                 dev_info(&pf->pdev->dev,
 256                          "    rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
 257                          i,
 258                          rx_ring->rx_stats.alloc_page_failed,
 259                          rx_ring->rx_stats.alloc_buff_failed);
 260                 dev_info(&pf->pdev->dev,
 261                          "    rx_rings[%i]: rx_stats: realloc_count = 0, page_reuse_count = %lld\n",
 262                          i,
 263                          rx_ring->rx_stats.page_reuse_count);
 264                 dev_info(&pf->pdev->dev,
 265                          "    rx_rings[%i]: size = %i\n",
 266                          i, rx_ring->size);
 267                 dev_info(&pf->pdev->dev,
 268                          "    rx_rings[%i]: itr_setting = %d (%s)\n",
 269                          i, rx_ring->itr_setting,
 270                          ITR_IS_DYNAMIC(rx_ring->itr_setting) ? "dynamic" : "fixed");
 271         }
 272         for (i = 0; i < vsi->num_queue_pairs; i++) {
 273                 struct i40e_ring *tx_ring = READ_ONCE(vsi->tx_rings[i]);
 274
 275                 if (!tx_ring)
 276                         continue;
 277
 278                 dev_info(&pf->pdev->dev,
 279                          "    tx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 280                          i, *tx_ring->state,
 281                          tx_ring->queue_index,
 282                          tx_ring->reg_idx);
 283                 dev_info(&pf->pdev->dev,
 284                          "    tx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 285                          i,
 286                          tx_ring->next_to_use,
 287                          tx_ring->next_to_clean,
 288                          tx_ring->ring_active);
 289                 dev_info(&pf->pdev->dev,
 290                          "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 291                          i, tx_ring->stats.packets,
 292                          tx_ring->stats.bytes,
 293                          tx_ring->tx_stats.restart_queue);
 294                 dev_info(&pf->pdev->dev,
 295                          "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld, tx_stopped = %lld\n",
 296                          i,
 297                          tx_ring->tx_stats.tx_busy,
 298                          tx_ring->tx_stats.tx_done_old,
 299                          tx_ring->tx_stats.tx_stopped);
 300                 dev_info(&pf->pdev->dev,
 301                          "    tx_rings[%i]: size = %i\n",
 302                          i, tx_ring->size);
 303                 dev_info(&pf->pdev->dev,
 304                          "    tx_rings[%i]: DCB tc = %d\n",
 305                          i, tx_ring->dcb_tc);
 306                 dev_info(&pf->pdev->dev,
 307                          "    tx_rings[%i]: itr_setting = %d (%s)\n",
 308                          i, tx_ring->itr_setting,
 309                          ITR_IS_DYNAMIC(tx_ring->itr_setting) ? "dynamic" : "fixed");
 310         }
 311         if (i40e_enabled_xdp_vsi(vsi)) {
 312                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 313                         struct i40e_ring *xdp_ring = READ_ONCE(vsi->xdp_rings[i]);
 314
 315                         if (!xdp_ring)
 316                                 continue;
 317
 318                         dev_info(&pf->pdev->dev,
 319                                  "    xdp_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 320                                  i, *xdp_ring->state,
 321                                  xdp_ring->queue_index,
 322                                  xdp_ring->reg_idx);
 323                         dev_info(&pf->pdev->dev,
 324                                  "    xdp_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 325                                  i,
 326                                  xdp_ring->next_to_use,
 327                                  xdp_ring->next_to_clean,
 328                                  xdp_ring->ring_active);
 329                         dev_info(&pf->pdev->dev,
 330                                  "    xdp_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 331                                  i, xdp_ring->stats.packets,
 332                                  xdp_ring->stats.bytes,
 333                                  xdp_ring->tx_stats.restart_queue);
 334                         dev_info(&pf->pdev->dev,
 335                                  "    xdp_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
 336                                  i,
 337                                  xdp_ring->tx_stats.tx_busy,
 338                                  xdp_ring->tx_stats.tx_done_old);
 339                         dev_info(&pf->pdev->dev,
 340                                  "    xdp_rings[%i]: size = %i\n",
 341                                  i, xdp_ring->size);
 342                         dev_info(&pf->pdev->dev,
 343                                  "    xdp_rings[%i]: DCB tc = %d\n",
 344                                  i, xdp_ring->dcb_tc);
 345                         dev_info(&pf->pdev->dev,
 346                                  "    xdp_rings[%i]: itr_setting = %d (%s)\n",
 347                                  i, xdp_ring->itr_setting,
 348                                  ITR_IS_DYNAMIC(xdp_ring->itr_setting) ?
 349                                  "dynamic" : "fixed");
 350                 }
 351         }
 352         rcu_read_unlock();
 353         dev_info(&pf->pdev->dev,
 354                  "    work_limit = %d\n",
 355                  vsi->work_limit);
 356         dev_info(&pf->pdev->dev,
 357                  "    max_frame = %d, rx_buf_len = %d dtype = %d\n",
 358                  vsi->max_frame, vsi->rx_buf_len, 0);
 359         dev_info(&pf->pdev->dev,
 360                  "    num_q_vectors = %i, base_vector = %i\n",
 361                  vsi->num_q_vectors, vsi->base_vector);
 362         dev_info(&pf->pdev->dev,
 363                  "    seid = %d, id = %d, uplink_seid = %d\n",
 364                  vsi->seid, vsi->id, vsi->uplink_seid);
 365         dev_info(&pf->pdev->dev,
 366                  "    base_queue = %d, num_queue_pairs = %d, num_tx_desc = %d, num_rx_desc = %d\n",
 367                  vsi->base_queue, vsi->num_queue_pairs, vsi->num_tx_desc,
 368                  vsi->num_rx_desc);
 369         dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 370         if (vsi->type == I40E_VSI_SRIOV)
 371                 dev_info(&pf->pdev->dev, "    VF ID = %i\n", vsi->vf_id);
 372         dev_info(&pf->pdev->dev,
 373                  "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 374                  vsi->info.valid_sections, vsi->info.switch_id);
 375         dev_info(&pf->pdev->dev,
 376                  "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 377                  vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 378         dev_info(&pf->pdev->dev,
 379                  "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 380                  vsi->info.sec_flags, vsi->info.sec_reserved);
 381         dev_info(&pf->pdev->dev,
 382                  "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 383                  vsi->info.pvid, vsi->info.fcoe_pvid,
 384                  vsi->info.port_vlan_flags);
 385         dev_info(&pf->pdev->dev,
 386                  "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 387                  vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 388                  vsi->info.pvlan_reserved[2]);
 389         dev_info(&pf->pdev->dev,
 390                  "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 391                  vsi->info.ingress_table, vsi->info.egress_table);
 392         dev_info(&pf->pdev->dev,
 393                  "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 394                  vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 395                  vsi->info.cas_pv_reserved);
 396         dev_info(&pf->pdev->dev,
 397                  "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 398                  vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 399                  vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 400                  vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 401                  vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 402         dev_info(&pf->pdev->dev,
 403                  "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 404                  vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 405                  vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 406                  vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 407                  vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 408         dev_info(&pf->pdev->dev,
 409                  "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 410                  vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 411                  vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 412                  vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 413                  vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 414         dev_info(&pf->pdev->dev,
 415                  "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 416                  vsi->info.queueing_opt_flags,
 417                  vsi->info.queueing_opt_reserved[0],
 418                  vsi->info.queueing_opt_reserved[1],
 419                  vsi->info.queueing_opt_reserved[2]);
 420         dev_info(&pf->pdev->dev,
 421                  "    info: up_enable_bits = 0x%02x\n",
 422                  vsi->info.up_enable_bits);
 423         dev_info(&pf->pdev->dev,
 424                  "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 425                  vsi->info.sched_reserved, vsi->info.outer_up_table);
 426         dev_info(&pf->pdev->dev,
 427                  "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 428                  vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 429                  vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 430                  vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 431                  vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 432         dev_info(&pf->pdev->dev,
 433                  "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 434                  vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 435                  vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 436                  vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 437                  vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 438         dev_info(&pf->pdev->dev,
 439                  "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 440                  vsi->info.stat_counter_idx, vsi->info.sched_id);
 441         dev_info(&pf->pdev->dev,
 442                  "    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",
 443                  vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 444                  vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 445                  vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 446                  vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 447                  vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 448                  vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 449         dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 450         dev_info(&pf->pdev->dev,
 451                  "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 452                  vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 453         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 454                 dev_info(&pf->pdev->dev,
 455                          "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 456                          i, vsi->tc_config.tc_info[i].qoffset,
 457                          vsi->tc_config.tc_info[i].qcount,
 458                          vsi->tc_config.tc_info[i].netdev_tc);
 459         }
 460         dev_info(&pf->pdev->dev,
 461                  "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 462                  vsi->bw_limit, vsi->bw_max_quanta);
 463         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 464                 dev_info(&pf->pdev->dev,
 465                          "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 466                          i, vsi->bw_ets_share_credits[i],
 467                          vsi->bw_ets_limit_credits[i],
 468                          vsi->bw_ets_max_quanta[i]);
 469         }
 470 }
 471
 472 /**
 473  * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 474  * @pf: the i40e_pf created in command write
 475  **/
 476 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 477 {
 478         struct i40e_adminq_ring *ring;
 479         struct i40e_hw *hw = &pf->hw;
 480         char hdr[32];
 481         int i;
 482
 483         snprintf(hdr, sizeof(hdr), "%s %s:         ",
 484                  dev_driver_string(&pf->pdev->dev),
 485                  dev_name(&pf->pdev->dev));
 486
 487         /* first the send (command) ring, then the receive (event) ring */
 488         dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 489         ring = &(hw->aq.asq);
 490         for (i = 0; i < ring->count; i++) {
 491                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 492
 493                 dev_info(&pf->pdev->dev,
 494                          "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 495                          i, d->flags, d->opcode, d->datalen, d->retval,
 496                          d->cookie_high, d->cookie_low);
 497                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 498                                16, 1, d->params.raw, 16, 0);
 499         }
 500
 501         dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 502         ring = &(hw->aq.arq);
 503         for (i = 0; i < ring->count; i++) {
 504                 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 505
 506                 dev_info(&pf->pdev->dev,
 507                          "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 508                          i, d->flags, d->opcode, d->datalen, d->retval,
 509                          d->cookie_high, d->cookie_low);
 510                 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 511                                16, 1, d->params.raw, 16, 0);
 512         }
 513 }
 514
 515 /**
 516  * i40e_dbg_dump_desc - handles dump desc write into command datum
 517  * @cnt: number of arguments that the user supplied
 518  * @vsi_seid: vsi id entered by user
 519  * @ring_id: ring id entered by user
 520  * @desc_n: descriptor number entered by user
 521  * @pf: the i40e_pf created in command write
 522  * @type: enum describing whether ring is RX, TX or XDP
 523  **/
 524 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 525                                struct i40e_pf *pf, enum ring_type type)
 526 {
 527         bool is_rx_ring = type == RING_TYPE_RX;
 528         struct i40e_tx_desc *txd;
 529         union i40e_rx_desc *rxd;
 530         struct i40e_ring *ring;
 531         struct i40e_vsi *vsi;
 532         int i;
 533
 534         vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 535         if (!vsi) {
 536                 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 537                 return;
 538         }
 539         if (vsi->type != I40E_VSI_MAIN &&
 540             vsi->type != I40E_VSI_FDIR &&
 541             vsi->type != I40E_VSI_VMDQ2) {
 542                 dev_info(&pf->pdev->dev,
 543                          "vsi %d type %d descriptor rings not available\n",
 544                          vsi_seid, vsi->type);
 545                 return;
 546         }
 547         if (type == RING_TYPE_XDP && !i40e_enabled_xdp_vsi(vsi)) {
 548                 dev_info(&pf->pdev->dev, "XDP not enabled on VSI %d\n", vsi_seid);
 549                 return;
 550         }
 551         if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 552                 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 553                 return;
 554         }
 555         if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
 556                 dev_info(&pf->pdev->dev,
 557                          "descriptor rings have not been allocated for vsi %d\n",
 558                          vsi_seid);
 559                 return;
 560         }
 561
 562         switch (type) {
 563         case RING_TYPE_RX:
 564                 ring = kmemdup(vsi->rx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
 565                 break;
 566         case RING_TYPE_TX:
 567                 ring = kmemdup(vsi->tx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
 568                 break;
 569         case RING_TYPE_XDP:
 570                 ring = kmemdup(vsi->xdp_rings[ring_id], sizeof(*ring), GFP_KERNEL);
 571                 break;
 572         default:
 573                 ring = NULL;
 574                 break;
 575         }
 576         if (!ring)
 577                 return;
 578
 579         if (cnt == 2) {
 580                 switch (type) {
 581                 case RING_TYPE_RX:
 582                         dev_info(&pf->pdev->dev, "VSI = %02i Rx ring = %02i\n", vsi_seid, ring_id);
 583                         break;
 584                 case RING_TYPE_TX:
 585                         dev_info(&pf->pdev->dev, "VSI = %02i Tx ring = %02i\n", vsi_seid, ring_id);
 586                         break;
 587                 case RING_TYPE_XDP:
 588                         dev_info(&pf->pdev->dev, "VSI = %02i XDP ring = %02i\n", vsi_seid, ring_id);
 589                         break;
 590                 }
 591                 for (i = 0; i < ring->count; i++) {
 592                         if (!is_rx_ring) {
 593                                 txd = I40E_TX_DESC(ring, i);
 594                                 dev_info(&pf->pdev->dev,
 595                                          "   d[%03x] = 0x%016llx 0x%016llx\n",
 596                                          i, txd->buffer_addr,
 597                                          txd->cmd_type_offset_bsz);
 598                         } else {
 599                                 rxd = I40E_RX_DESC(ring, i);
 600                                 dev_info(&pf->pdev->dev,
 601                                          "   d[%03x] = 0x%016llx 0x%016llx\n",
 602                                          i, rxd->read.pkt_addr,
 603                                          rxd->read.hdr_addr);
 604                         }
 605                 }
 606         } else if (cnt == 3) {
 607                 if (desc_n >= ring->count || desc_n < 0) {
 608                         dev_info(&pf->pdev->dev,
 609                                  "descriptor %d not found\n", desc_n);
 610                         goto out;
 611                 }
 612                 if (!is_rx_ring) {
 613                         txd = I40E_TX_DESC(ring, desc_n);
 614                         dev_info(&pf->pdev->dev,
 615                                  "vsi = %02i tx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 616                                  vsi_seid, ring_id, desc_n,
 617                                  txd->buffer_addr, txd->cmd_type_offset_bsz);
 618                 } else {
 619                         rxd = I40E_RX_DESC(ring, desc_n);
 620                         dev_info(&pf->pdev->dev,
 621                                  "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 622                                  vsi_seid, ring_id, desc_n,
 623                                  rxd->read.pkt_addr, rxd->read.hdr_addr);
 624                 }
 625         } else {
 626                 dev_info(&pf->pdev->dev, "dump desc rx/tx/xdp <vsi_seid> <ring_id> [<desc_n>]\n");
 627         }
 628
 629 out:
 630         kfree(ring);
 631 }
 632
 633 /**
 634  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 635  * @pf: the i40e_pf created in command write
 636  **/
 637 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 638 {
 639         struct i40e_vsi *vsi;
 640         int i;
 641
 642         i40e_pf_for_each_vsi(pf, i, vsi)
 643                 dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n", i, vsi->seid);
 644 }
 645
 646 /**
 647  * i40e_dbg_dump_eth_stats - handles dump stats write into command datum
 648  * @pf: the i40e_pf created in command write
 649  * @estats: the eth stats structure to be dumped
 650  **/
 651 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 652                                     struct i40e_eth_stats *estats)
 653 {
 654         dev_info(&pf->pdev->dev, "  ethstats:\n");
 655         dev_info(&pf->pdev->dev,
 656                  "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 657                 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 658         dev_info(&pf->pdev->dev,
 659                  "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
 660                  estats->rx_broadcast, estats->rx_discards);
 661         dev_info(&pf->pdev->dev,
 662                  "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 663                  estats->rx_unknown_protocol, estats->tx_bytes);
 664         dev_info(&pf->pdev->dev,
 665                  "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 666                  estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 667         dev_info(&pf->pdev->dev,
 668                  "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 669                  estats->tx_discards, estats->tx_errors);
 670 }
 671
 672 /**
 673  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 674  * @pf: the i40e_pf created in command write
 675  * @seid: the seid the user put in
 676  **/
 677 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 678 {
 679         struct i40e_veb *veb;
 680
 681         veb = i40e_pf_get_veb_by_seid(pf, seid);
 682         if (!veb) {
 683                 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 684                 return;
 685         }
 686         dev_info(&pf->pdev->dev,
 687                  "veb idx=%d stats_ic=%d  seid=%d uplink=%d mode=%s\n",
 688                  veb->idx, veb->stats_idx, veb->seid, veb->uplink_seid,
 689                  veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
 690         i40e_dbg_dump_eth_stats(pf, &veb->stats);
 691 }
 692
 693 /**
 694  * i40e_dbg_dump_veb_all - dumps all known veb's stats
 695  * @pf: the i40e_pf created in command write
 696  **/
 697 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 698 {
 699         struct i40e_veb *veb;
 700         int i;
 701
 702         i40e_pf_for_each_veb(pf, i, veb)
 703                 i40e_dbg_dump_veb_seid(pf, veb->seid);
 704 }
 705
 706 /**
 707  * i40e_dbg_dump_vf - dump VF info
 708  * @pf: the i40e_pf created in command write
 709  * @vf_id: the vf_id from the user
 710  **/
 711 static void i40e_dbg_dump_vf(struct i40e_pf *pf, int vf_id)
 712 {
 713         struct i40e_vf *vf;
 714         struct i40e_vsi *vsi;
 715
 716         if (!pf->num_alloc_vfs) {
 717                 dev_info(&pf->pdev->dev, "no VFs allocated\n");
 718         } else if ((vf_id >= 0) && (vf_id < pf->num_alloc_vfs)) {
 719                 vf = &pf->vf[vf_id];
 720                 vsi = pf->vsi[vf->lan_vsi_idx];
 721                 dev_info(&pf->pdev->dev, "vf %2d: VSI id=%d, seid=%d, qps=%d\n",
 722                          vf_id, vf->lan_vsi_id, vsi->seid, vf->num_queue_pairs);
 723                 dev_info(&pf->pdev->dev, "       num MDD=%lld\n",
 724                          vf->num_mdd_events);
 725         } else {
 726                 dev_info(&pf->pdev->dev, "invalid VF id %d\n", vf_id);
 727         }
 728 }
 729
 730 /**
 731  * i40e_dbg_dump_vf_all - dump VF info for all VFs
 732  * @pf: the i40e_pf created in command write
 733  **/
 734 static void i40e_dbg_dump_vf_all(struct i40e_pf *pf)
 735 {
 736         int i;
 737
 738         if (!pf->num_alloc_vfs)
 739                 dev_info(&pf->pdev->dev, "no VFs enabled!\n");
 740         else
 741                 for (i = 0; i < pf->num_alloc_vfs; i++)
 742                         i40e_dbg_dump_vf(pf, i);
 743 }
 744
 745 /**
 746  * i40e_dbg_command_write - write into command datum
 747  * @filp: the opened file
 748  * @buffer: where to find the user's data
 749  * @count: the length of the user's data
 750  * @ppos: file position offset
 751  **/
 752 static ssize_t i40e_dbg_command_write(struct file *filp,
 753                                       const char __user *buffer,
 754                                       size_t count, loff_t *ppos)
 755 {
 756         struct i40e_pf *pf = filp->private_data;
 757         char *cmd_buf, *cmd_buf_tmp;
 758         int bytes_not_copied;
 759         struct i40e_vsi *vsi;
 760         int vsi_seid;
 761         int veb_seid;
 762         int vf_id;
 763         int cnt;
 764
 765         /* don't allow partial writes */
 766         if (*ppos != 0)
 767                 return 0;
 768
 769         cmd_buf = kzalloc(count + 1, GFP_KERNEL);
 770         if (!cmd_buf)
 771                 return count;
 772         bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
 773         if (bytes_not_copied) {
 774                 kfree(cmd_buf);
 775                 return -EFAULT;
 776         }
 777         cmd_buf[count] = '\0';
 778
 779         cmd_buf_tmp = strchr(cmd_buf, '\n');
 780         if (cmd_buf_tmp) {
 781                 *cmd_buf_tmp = '\0';
 782                 count = cmd_buf_tmp - cmd_buf + 1;
 783         }
 784
 785         if (strncmp(cmd_buf, "add vsi", 7) == 0) {
 786                 vsi_seid = -1;
 787                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
 788                 if (cnt == 0) {
 789                         /* default to PF VSI */
 790                         vsi = i40e_pf_get_main_vsi(pf);
 791                         vsi_seid = vsi->seid;
 792                 } else if (vsi_seid < 0) {
 793                         dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
 794                                  vsi_seid);
 795                         goto command_write_done;
 796                 }
 797
 798                 /* By default we are in VEPA mode, if this is the first VF/VMDq
 799                  * VSI to be added switch to VEB mode.
 800                  */
 801                 if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) {
 802                         set_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
 803                         i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
 804                 }
 805
 806                 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
 807                 if (vsi)
 808                         dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
 809                                  vsi->seid, vsi->uplink_seid);
 810                 else
 811                         dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
 812
 813         } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
 814                 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
 815                 if (cnt != 1) {
 816                         dev_info(&pf->pdev->dev,
 817                                  "del vsi: bad command string, cnt=%d\n",
 818                                  cnt);
 819                         goto command_write_done;
 820                 }
 821                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 822                 if (!vsi) {
 823                         dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
 824                                  vsi_seid);
 825                         goto command_write_done;
 826                 }
 827
 828                 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
 829                 i40e_vsi_release(vsi);
 830
 831         } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
 832                 struct i40e_veb *veb;
 833                 u8 enabled_tc = 0x1;
 834                 int uplink_seid;
 835
 836                 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
 837                 if (cnt == 0) {
 838                         uplink_seid = 0;
 839                         vsi_seid = 0;
 840                 } else if (cnt != 2) {
 841                         dev_info(&pf->pdev->dev,
 842                                  "add relay: bad command string, cnt=%d\n",
 843                                  cnt);
 844                         goto command_write_done;
 845                 } else if (uplink_seid < 0) {
 846                         dev_info(&pf->pdev->dev,
 847                                  "add relay %d: bad uplink seid\n",
 848                                  uplink_seid);
 849                         goto command_write_done;
 850                 }
 851
 852                 if (uplink_seid != 0 && uplink_seid != pf->mac_seid) {
 853                         dev_info(&pf->pdev->dev,
 854                                  "add relay: relay uplink %d not found\n",
 855                                  uplink_seid);
 856                         goto command_write_done;
 857                 } else if (uplink_seid) {
 858                         vsi = i40e_pf_get_vsi_by_seid(pf, vsi_seid);
 859                         if (!vsi) {
 860                                 dev_info(&pf->pdev->dev,
 861                                          "add relay: VSI %d not found\n",
 862                                          vsi_seid);
 863                                 goto command_write_done;
 864                         }
 865                         enabled_tc = vsi->tc_config.enabled_tc;
 866                 } else if (vsi_seid) {
 867                         dev_info(&pf->pdev->dev,
 868                                  "add relay: VSI must be 0 for floating relay\n");
 869                         goto command_write_done;
 870                 }
 871
 872                 veb = i40e_veb_setup(pf, uplink_seid, vsi_seid, enabled_tc);
 873                 if (veb)
 874                         dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
 875                 else
 876                         dev_info(&pf->pdev->dev, "add relay failed\n");
 877
 878         } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
 879                 struct i40e_veb *veb;
 880                 int i;
 881
 882                 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
 883                 if (cnt != 1) {
 884                         dev_info(&pf->pdev->dev,
 885                                  "del relay: bad command string, cnt=%d\n",
 886                                  cnt);
 887                         goto command_write_done;
 888                 } else if (veb_seid < 0) {
 889                         dev_info(&pf->pdev->dev,
 890                                  "del relay %d: bad relay seid\n", veb_seid);
 891                         goto command_write_done;
 892                 }
 893
 894                 /* find the veb */
 895                 i40e_pf_for_each_veb(pf, i, veb)
 896                         if (veb->seid == veb_seid)
 897                                 break;
 898
 899                 if (i >= I40E_MAX_VEB) {
 900                         dev_info(&pf->pdev->dev,
 901                                  "del relay: relay %d not found\n", veb_seid);
 902                         goto command_write_done;
 903                 }
 904
 905                 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
 906                 i40e_veb_release(veb);
 907         } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
 908                 unsigned int v;
 909                 int ret;
 910                 u16 vid;
 911
 912                 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
 913                 if (cnt != 2) {
 914                         dev_info(&pf->pdev->dev,
 915                                  "add pvid: bad command string, cnt=%d\n", cnt);
 916                         goto command_write_done;
 917                 }
 918
 919                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 920                 if (!vsi) {
 921                         dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
 922                                  vsi_seid);
 923                         goto command_write_done;
 924                 }
 925
 926                 vid = v;
 927                 ret = i40e_vsi_add_pvid(vsi, vid);
 928                 if (!ret)
 929                         dev_info(&pf->pdev->dev,
 930                                  "add pvid: %d added to VSI %d\n",
 931                                  vid, vsi_seid);
 932                 else
 933                         dev_info(&pf->pdev->dev,
 934                                  "add pvid: %d to VSI %d failed, ret=%d\n",
 935                                  vid, vsi_seid, ret);
 936
 937         } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
 938
 939                 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 940                 if (cnt != 1) {
 941                         dev_info(&pf->pdev->dev,
 942                                  "del pvid: bad command string, cnt=%d\n",
 943                                  cnt);
 944                         goto command_write_done;
 945                 }
 946
 947                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 948                 if (!vsi) {
 949                         dev_info(&pf->pdev->dev,
 950                                  "del pvid: VSI %d not found\n", vsi_seid);
 951                         goto command_write_done;
 952                 }
 953
 954                 i40e_vsi_remove_pvid(vsi);
 955                 dev_info(&pf->pdev->dev,
 956                          "del pvid: removed from VSI %d\n", vsi_seid);
 957
 958         } else if (strncmp(cmd_buf, "dump", 4) == 0) {
 959                 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
 960                         i40e_fetch_switch_configuration(pf, true);
 961                 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
 962                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 963                         if (cnt > 0)
 964                                 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
 965                         else
 966                                 i40e_dbg_dump_vsi_no_seid(pf);
 967                 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
 968                         cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 969                         if (cnt > 0)
 970                                 i40e_dbg_dump_veb_seid(pf, vsi_seid);
 971                         else
 972                                 i40e_dbg_dump_veb_all(pf);
 973                 } else if (strncmp(&cmd_buf[5], "vf", 2) == 0) {
 974                         cnt = sscanf(&cmd_buf[7], "%i", &vf_id);
 975                         if (cnt > 0)
 976                                 i40e_dbg_dump_vf(pf, vf_id);
 977                         else
 978                                 i40e_dbg_dump_vf_all(pf);
 979                 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
 980                         int ring_id, desc_n;
 981                         if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
 982                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
 983                                              &vsi_seid, &ring_id, &desc_n);
 984                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
 985                                                    desc_n, pf, RING_TYPE_RX);
 986                         } else if (strncmp(&cmd_buf[10], "tx", 2)
 987                                         == 0) {
 988                                 cnt = sscanf(&cmd_buf[12], "%i %i %i",
 989                                              &vsi_seid, &ring_id, &desc_n);
 990                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
 991                                                    desc_n, pf, RING_TYPE_TX);
 992                         } else if (strncmp(&cmd_buf[10], "xdp", 3)
 993                                         == 0) {
 994                                 cnt = sscanf(&cmd_buf[13], "%i %i %i",
 995                                              &vsi_seid, &ring_id, &desc_n);
 996                                 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
 997                                                    desc_n, pf, RING_TYPE_XDP);
 998                         } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
 999                                 i40e_dbg_dump_aq_desc(pf);
1000                         } else {
1001                                 dev_info(&pf->pdev->dev,
1002                                          "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1003                                 dev_info(&pf->pdev->dev,
1004                                          "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1005                                 dev_info(&pf->pdev->dev,
1006                                          "dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1007                                 dev_info(&pf->pdev->dev, "dump desc aq\n");
1008                         }
1009                 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1010                         dev_info(&pf->pdev->dev,
1011                                  "core reset count: %d\n", pf->corer_count);
1012                         dev_info(&pf->pdev->dev,
1013                                  "global reset count: %d\n", pf->globr_count);
1014                         dev_info(&pf->pdev->dev,
1015                                  "emp reset count: %d\n", pf->empr_count);
1016                         dev_info(&pf->pdev->dev,
1017                                  "pf reset count: %d\n", pf->pfr_count);
1018                 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1019                         struct i40e_aqc_query_port_ets_config_resp *bw_data;
1020                         struct i40e_dcbx_config *cfg =
1021                                                 &pf->hw.local_dcbx_config;
1022                         struct i40e_dcbx_config *r_cfg =
1023                                                 &pf->hw.remote_dcbx_config;
1024                         int i, ret;
1025                         u16 switch_id;
1026
1027                         bw_data = kzalloc(sizeof(
1028                                     struct i40e_aqc_query_port_ets_config_resp),
1029                                           GFP_KERNEL);
1030                         if (!bw_data) {
1031                                 ret = -ENOMEM;
1032                                 goto command_write_done;
1033                         }
1034
1035                         vsi = i40e_pf_get_main_vsi(pf);
1036                         switch_id =
1037                                 le16_to_cpu(vsi->info.switch_id) &
1038                                             I40E_AQ_VSI_SW_ID_MASK;
1039
1040                         ret = i40e_aq_query_port_ets_config(&pf->hw,
1041                                                             switch_id,
1042                                                             bw_data, NULL);
1043                         if (ret) {
1044                                 dev_info(&pf->pdev->dev,
1045                                          "Query Port ETS Config AQ command failed =0x%x\n",
1046                                          pf->hw.aq.asq_last_status);
1047                                 kfree(bw_data);
1048                                 bw_data = NULL;
1049                                 goto command_write_done;
1050                         }
1051                         dev_info(&pf->pdev->dev,
1052                                  "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1053                                  bw_data->tc_valid_bits,
1054                                  bw_data->tc_strict_priority_bits,
1055                                  le16_to_cpu(bw_data->tc_bw_max[0]),
1056                                  le16_to_cpu(bw_data->tc_bw_max[1]));
1057                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1058                                 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1059                                          bw_data->tc_bw_share_credits[i],
1060                                          le16_to_cpu(bw_data->tc_bw_limits[i]));
1061                         }
1062
1063                         kfree(bw_data);
1064                         bw_data = NULL;
1065
1066                         dev_info(&pf->pdev->dev,
1067                                  "port dcbx_mode=%d\n", cfg->dcbx_mode);
1068                         dev_info(&pf->pdev->dev,
1069                                  "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1070                                  cfg->etscfg.willing, cfg->etscfg.cbs,
1071                                  cfg->etscfg.maxtcs);
1072                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1073                                 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1074                                          i, cfg->etscfg.prioritytable[i],
1075                                          cfg->etscfg.tcbwtable[i],
1076                                          cfg->etscfg.tsatable[i]);
1077                         }
1078                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1079                                 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1080                                          i, cfg->etsrec.prioritytable[i],
1081                                          cfg->etsrec.tcbwtable[i],
1082                                          cfg->etsrec.tsatable[i]);
1083                         }
1084                         dev_info(&pf->pdev->dev,
1085                                  "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1086                                  cfg->pfc.willing, cfg->pfc.mbc,
1087                                  cfg->pfc.pfccap, cfg->pfc.pfcenable);
1088                         dev_info(&pf->pdev->dev,
1089                                  "port app_table: num_apps=%d\n", cfg->numapps);
1090                         for (i = 0; i < cfg->numapps; i++) {
1091                                 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1092                                          i, cfg->app[i].priority,
1093                                          cfg->app[i].selector,
1094                                          cfg->app[i].protocolid);
1095                         }
1096                         /* Peer TLV DCBX data */
1097                         dev_info(&pf->pdev->dev,
1098                                  "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1099                                  r_cfg->etscfg.willing,
1100                                  r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1101                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1102                                 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1103                                          i, r_cfg->etscfg.prioritytable[i],
1104                                          r_cfg->etscfg.tcbwtable[i],
1105                                          r_cfg->etscfg.tsatable[i]);
1106                         }
1107                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1108                                 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1109                                          i, r_cfg->etsrec.prioritytable[i],
1110                                          r_cfg->etsrec.tcbwtable[i],
1111                                          r_cfg->etsrec.tsatable[i]);
1112                         }
1113                         dev_info(&pf->pdev->dev,
1114                                  "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1115                                  r_cfg->pfc.willing,
1116                                  r_cfg->pfc.mbc,
1117                                  r_cfg->pfc.pfccap,
1118                                  r_cfg->pfc.pfcenable);
1119                         dev_info(&pf->pdev->dev,
1120                                  "remote port app_table: num_apps=%d\n",
1121                                  r_cfg->numapps);
1122                         for (i = 0; i < r_cfg->numapps; i++) {
1123                                 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1124                                          i, r_cfg->app[i].priority,
1125                                          r_cfg->app[i].selector,
1126                                          r_cfg->app[i].protocolid);
1127                         }
1128                 } else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
1129                         int cluster_id, table_id;
1130                         int index, ret;
1131                         u16 buff_len = 4096;
1132                         u32 next_index;
1133                         u8 next_table;
1134                         u8 *buff;
1135                         u16 rlen;
1136
1137                         cnt = sscanf(&cmd_buf[18], "%i %i %i",
1138                                      &cluster_id, &table_id, &index);
1139                         if (cnt != 3) {
1140                                 dev_info(&pf->pdev->dev,
1141                                          "dump debug fwdata <cluster_id> <table_id> <index>\n");
1142                                 goto command_write_done;
1143                         }
1144
1145                         dev_info(&pf->pdev->dev,
1146                                  "AQ debug dump fwdata params %x %x %x %x\n",
1147                                  cluster_id, table_id, index, buff_len);
1148                         buff = kzalloc(buff_len, GFP_KERNEL);
1149                         if (!buff)
1150                                 goto command_write_done;
1151
1152                         ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
1153                                                  index, buff_len, buff, &rlen,
1154                                                  &next_table, &next_index,
1155                                                  NULL);
1156                         if (ret) {
1157                                 dev_info(&pf->pdev->dev,
1158                                          "debug dump fwdata AQ Failed %d 0x%x\n",
1159                                          ret, pf->hw.aq.asq_last_status);
1160                                 kfree(buff);
1161                                 buff = NULL;
1162                                 goto command_write_done;
1163                         }
1164                         dev_info(&pf->pdev->dev,
1165                                  "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
1166                                  rlen, next_table, next_index);
1167                         print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1168                                        DUMP_PREFIX_OFFSET, 16, 1,
1169                                        buff, rlen, true);
1170                         kfree(buff);
1171                         buff = NULL;
1172                 } else {
1173                         dev_info(&pf->pdev->dev,
1174                                  "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>], dump desc xdp <vsi_seid> <ring_id> [<desc_n>],\n");
1175                         dev_info(&pf->pdev->dev, "dump switch\n");
1176                         dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1177                         dev_info(&pf->pdev->dev, "dump reset stats\n");
1178                         dev_info(&pf->pdev->dev, "dump port\n");
1179                         dev_info(&pf->pdev->dev, "dump vf [vf_id]\n");
1180                         dev_info(&pf->pdev->dev,
1181                                  "dump debug fwdata <cluster_id> <table_id> <index>\n");
1182                 }
1183         } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1184                 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1185                 i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
1186
1187         } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1188                 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1189                 i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));
1190
1191         } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1192                 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1193                 i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));
1194
1195         } else if (strncmp(cmd_buf, "read", 4) == 0) {
1196                 u32 address;
1197                 u32 value;
1198
1199                 cnt = sscanf(&cmd_buf[4], "%i", &address);
1200                 if (cnt != 1) {
1201                         dev_info(&pf->pdev->dev, "read <reg>\n");
1202                         goto command_write_done;
1203                 }
1204
1205                 /* check the range on address */
1206                 if (address > (pf->ioremap_len - sizeof(u32))) {
1207                         dev_info(&pf->pdev->dev, "read reg address 0x%08x too large, max=0x%08lx\n",
1208                                  address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1209                         goto command_write_done;
1210                 }
1211
1212                 value = rd32(&pf->hw, address);
1213                 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1214                          address, value);
1215
1216         } else if (strncmp(cmd_buf, "write", 5) == 0) {
1217                 u32 address, value;
1218
1219                 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1220                 if (cnt != 2) {
1221                         dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1222                         goto command_write_done;
1223                 }
1224
1225                 /* check the range on address */
1226                 if (address > (pf->ioremap_len - sizeof(u32))) {
1227                         dev_info(&pf->pdev->dev, "write reg address 0x%08x too large, max=0x%08lx\n",
1228                                  address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1229                         goto command_write_done;
1230                 }
1231                 wr32(&pf->hw, address, value);
1232                 value = rd32(&pf->hw, address);
1233                 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1234                          address, value);
1235         } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1236                 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1237                         cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1238                         if (cnt == 0) {
1239                                 int i;
1240
1241                                 i40e_pf_for_each_vsi(pf, i, vsi)
1242                                         i40e_vsi_reset_stats(vsi);
1243                                 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1244                         } else if (cnt == 1) {
1245                                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1246                                 if (!vsi) {
1247                                         dev_info(&pf->pdev->dev,
1248                                                  "clear_stats vsi: bad vsi %d\n",
1249                                                  vsi_seid);
1250                                         goto command_write_done;
1251                                 }
1252                                 i40e_vsi_reset_stats(vsi);
1253                                 dev_info(&pf->pdev->dev,
1254                                          "vsi clear stats called for vsi %d\n",
1255                                          vsi_seid);
1256                         } else {
1257                                 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1258                         }
1259                 } else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1260                         if (pf->hw.partition_id == 1) {
1261                                 i40e_pf_reset_stats(pf);
1262                                 dev_info(&pf->pdev->dev, "port stats cleared\n");
1263                         } else {
1264                                 dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1265                         }
1266                 } else {
1267                         dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
1268                 }
1269         } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1270                 struct i40e_aq_desc *desc;
1271                 int ret;
1272
1273                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1274                 if (!desc)
1275                         goto command_write_done;
1276                 cnt = sscanf(&cmd_buf[11],
1277                              "%hi %hi %hi %hi %i %i %i %i %i %i",
1278                              &desc->flags,
1279                              &desc->opcode, &desc->datalen, &desc->retval,
1280                              &desc->cookie_high, &desc->cookie_low,
1281                              &desc->params.internal.param0,
1282                              &desc->params.internal.param1,
1283                              &desc->params.internal.param2,
1284                              &desc->params.internal.param3);
1285                 if (cnt != 10) {
1286                         dev_info(&pf->pdev->dev,
1287                                  "send aq_cmd: bad command string, cnt=%d\n",
1288                                  cnt);
1289                         kfree(desc);
1290                         desc = NULL;
1291                         goto command_write_done;
1292                 }
1293                 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1294                 if (!ret) {
1295                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1296                 } else if (ret == -EIO) {
1297                         dev_info(&pf->pdev->dev,
1298                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1299                                  desc->opcode, pf->hw.aq.asq_last_status);
1300                 } else {
1301                         dev_info(&pf->pdev->dev,
1302                                  "AQ command send failed Opcode %x Status: %d\n",
1303                                  desc->opcode, ret);
1304                 }
1305                 dev_info(&pf->pdev->dev,
1306                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1307                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1308                          desc->cookie_high, desc->cookie_low,
1309                          desc->params.internal.param0,
1310                          desc->params.internal.param1,
1311                          desc->params.internal.param2,
1312                          desc->params.internal.param3);
1313                 kfree(desc);
1314                 desc = NULL;
1315         } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1316                 struct i40e_aq_desc *desc;
1317                 u16 buffer_len;
1318                 u8 *buff;
1319                 int ret;
1320
1321                 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1322                 if (!desc)
1323                         goto command_write_done;
1324                 cnt = sscanf(&cmd_buf[20],
1325                              "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1326                              &desc->flags,
1327                              &desc->opcode, &desc->datalen, &desc->retval,
1328                              &desc->cookie_high, &desc->cookie_low,
1329                              &desc->params.internal.param0,
1330                              &desc->params.internal.param1,
1331                              &desc->params.internal.param2,
1332                              &desc->params.internal.param3,
1333                              &buffer_len);
1334                 if (cnt != 11) {
1335                         dev_info(&pf->pdev->dev,
1336                                  "send indirect aq_cmd: bad command string, cnt=%d\n",
1337                                  cnt);
1338                         kfree(desc);
1339                         desc = NULL;
1340                         goto command_write_done;
1341                 }
1342                 /* Just stub a buffer big enough in case user messed up */
1343                 if (buffer_len == 0)
1344                         buffer_len = 1280;
1345
1346                 buff = kzalloc(buffer_len, GFP_KERNEL);
1347                 if (!buff) {
1348                         kfree(desc);
1349                         desc = NULL;
1350                         goto command_write_done;
1351                 }
1352                 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1353                 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1354                                             buffer_len, NULL);
1355                 if (!ret) {
1356                         dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1357                 } else if (ret == -EIO) {
1358                         dev_info(&pf->pdev->dev,
1359                                  "AQ command send failed Opcode %x AQ Error: %d\n",
1360                                  desc->opcode, pf->hw.aq.asq_last_status);
1361                 } else {
1362                         dev_info(&pf->pdev->dev,
1363                                  "AQ command send failed Opcode %x Status: %d\n",
1364                                  desc->opcode, ret);
1365                 }
1366                 dev_info(&pf->pdev->dev,
1367                          "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1368                          desc->flags, desc->opcode, desc->datalen, desc->retval,
1369                          desc->cookie_high, desc->cookie_low,
1370                          desc->params.internal.param0,
1371                          desc->params.internal.param1,
1372                          desc->params.internal.param2,
1373                          desc->params.internal.param3);
1374                 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1375                                DUMP_PREFIX_OFFSET, 16, 1,
1376                                buff, buffer_len, true);
1377                 kfree(buff);
1378                 buff = NULL;
1379                 kfree(desc);
1380                 desc = NULL;
1381         } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1382                 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1383                          i40e_get_current_fd_count(pf));
1384         } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1385                 /* Get main VSI */
1386                 struct i40e_vsi *main_vsi = i40e_pf_get_main_vsi(pf);
1387
1388                 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1389                         int ret;
1390
1391                         ret = i40e_aq_stop_lldp(&pf->hw, false, false, NULL);
1392                         if (ret) {
1393                                 dev_info(&pf->pdev->dev,
1394                                          "Stop LLDP AQ command failed =0x%x\n",
1395                                          pf->hw.aq.asq_last_status);
1396                                 goto command_write_done;
1397                         }
1398                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1399                                                 pf->hw.mac.addr, ETH_P_LLDP, 0,
1400                                                 main_vsi->seid, 0, true, NULL,
1401                                                 NULL);
1402                         if (ret) {
1403                                 dev_info(&pf->pdev->dev,
1404                                         "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1405                                         __func__, pf->hw.aq.asq_last_status);
1406                                 goto command_write_done;
1407                         }
1408 #ifdef CONFIG_I40E_DCB
1409                         pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1410                                        DCB_CAP_DCBX_VER_IEEE;
1411 #endif /* CONFIG_I40E_DCB */
1412                 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1413                         int ret;
1414
1415                         ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1416                                                 pf->hw.mac.addr, ETH_P_LLDP, 0,
1417                                                 main_vsi->seid, 0, false, NULL,
1418                                                 NULL);
1419                         if (ret) {
1420                                 dev_info(&pf->pdev->dev,
1421                                         "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1422                                         __func__, pf->hw.aq.asq_last_status);
1423                                 /* Continue and start FW LLDP anyways */
1424                         }
1425
1426                         ret = i40e_aq_start_lldp(&pf->hw, false, NULL);
1427                         if (ret) {
1428                                 dev_info(&pf->pdev->dev,
1429                                          "Start LLDP AQ command failed =0x%x\n",
1430                                          pf->hw.aq.asq_last_status);
1431                                 goto command_write_done;
1432                         }
1433 #ifdef CONFIG_I40E_DCB
1434                         pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1435                                        DCB_CAP_DCBX_VER_IEEE;
1436 #endif /* CONFIG_I40E_DCB */
1437                 } else if (strncmp(&cmd_buf[5],
1438                            "get local", 9) == 0) {
1439                         u16 llen, rlen;
1440                         int ret;
1441                         u8 *buff;
1442
1443                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1444                         if (!buff)
1445                                 goto command_write_done;
1446
1447                         ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1448                                                    I40E_AQ_LLDP_MIB_LOCAL,
1449                                                    buff, I40E_LLDPDU_SIZE,
1450                                                    &llen, &rlen, NULL);
1451                         if (ret) {
1452                                 dev_info(&pf->pdev->dev,
1453                                          "Get LLDP MIB (local) AQ command failed =0x%x\n",
1454                                          pf->hw.aq.asq_last_status);
1455                                 kfree(buff);
1456                                 buff = NULL;
1457                                 goto command_write_done;
1458                         }
1459                         dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1460                         print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1461                                        DUMP_PREFIX_OFFSET, 16, 1,
1462                                        buff, I40E_LLDPDU_SIZE, true);
1463                         kfree(buff);
1464                         buff = NULL;
1465                 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1466                         u16 llen, rlen;
1467                         int ret;
1468                         u8 *buff;
1469
1470                         buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1471                         if (!buff)
1472                                 goto command_write_done;
1473
1474                         ret = i40e_aq_get_lldp_mib(&pf->hw,
1475                                         I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1476                                         I40E_AQ_LLDP_MIB_REMOTE,
1477                                         buff, I40E_LLDPDU_SIZE,
1478                                         &llen, &rlen, NULL);
1479                         if (ret) {
1480                                 dev_info(&pf->pdev->dev,
1481                                          "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1482                                          pf->hw.aq.asq_last_status);
1483                                 kfree(buff);
1484                                 buff = NULL;
1485                                 goto command_write_done;
1486                         }
1487                         dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1488                         print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1489                                        DUMP_PREFIX_OFFSET, 16, 1,
1490                                        buff, I40E_LLDPDU_SIZE, true);
1491                         kfree(buff);
1492                         buff = NULL;
1493                 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1494                         int ret;
1495
1496                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1497                                                                 true, NULL);
1498                         if (ret) {
1499                                 dev_info(&pf->pdev->dev,
1500                                          "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1501                                          pf->hw.aq.asq_last_status);
1502                                 goto command_write_done;
1503                         }
1504                 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1505                         int ret;
1506
1507                         ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1508                                                                 false, NULL);
1509                         if (ret) {
1510                                 dev_info(&pf->pdev->dev,
1511                                          "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1512                                          pf->hw.aq.asq_last_status);
1513                                 goto command_write_done;
1514                         }
1515                 }
1516         } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1517                 u16 buffer_len, bytes;
1518                 u16 module;
1519                 u32 offset;
1520                 u16 *buff;
1521                 int ret;
1522
1523                 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1524                              &module, &offset, &buffer_len);
1525                 if (cnt == 0) {
1526                         module = 0;
1527                         offset = 0;
1528                         buffer_len = 0;
1529                 } else if (cnt == 1) {
1530                         offset = 0;
1531                         buffer_len = 0;
1532                 } else if (cnt == 2) {
1533                         buffer_len = 0;
1534                 } else if (cnt > 3) {
1535                         dev_info(&pf->pdev->dev,
1536                                  "nvm read: bad command string, cnt=%d\n", cnt);
1537                         goto command_write_done;
1538                 }
1539
1540                 /* set the max length */
1541                 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1542
1543                 bytes = 2 * buffer_len;
1544
1545                 /* read at least 1k bytes, no more than 4kB */
1546                 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1547                 buff = kzalloc(bytes, GFP_KERNEL);
1548                 if (!buff)
1549                         goto command_write_done;
1550
1551                 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1552                 if (ret) {
1553                         dev_info(&pf->pdev->dev,
1554                                  "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1555                                  ret, pf->hw.aq.asq_last_status);
1556                         kfree(buff);
1557                         goto command_write_done;
1558                 }
1559
1560                 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1561                                        bytes, (u8 *)buff, true, NULL);
1562                 i40e_release_nvm(&pf->hw);
1563                 if (ret) {
1564                         dev_info(&pf->pdev->dev,
1565                                  "Read NVM AQ failed err=%d status=0x%x\n",
1566                                  ret, pf->hw.aq.asq_last_status);
1567                 } else {
1568                         dev_info(&pf->pdev->dev,
1569                                  "Read NVM module=0x%x offset=0x%x words=%d\n",
1570                                  module, offset, buffer_len);
1571                         if (bytes)
1572                                 print_hex_dump(KERN_INFO, "NVM Dump: ",
1573                                         DUMP_PREFIX_OFFSET, 16, 2,
1574                                         buff, bytes, true);
1575                 }
1576                 kfree(buff);
1577                 buff = NULL;
1578         } else {
1579                 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1580                 dev_info(&pf->pdev->dev, "available commands\n");
1581                 dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1582                 dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1583                 dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1584                 dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1585                 dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1586                 dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1587                 dev_info(&pf->pdev->dev, "  dump switch\n");
1588                 dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1589                 dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1590                 dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1591                 dev_info(&pf->pdev->dev, "  dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1592                 dev_info(&pf->pdev->dev, "  dump desc aq\n");
1593                 dev_info(&pf->pdev->dev, "  dump reset stats\n");
1594                 dev_info(&pf->pdev->dev, "  dump debug fwdata <cluster_id> <table_id> <index>\n");
1595                 dev_info(&pf->pdev->dev, "  read <reg>\n");
1596                 dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1597                 dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1598                 dev_info(&pf->pdev->dev, "  clear_stats port\n");
1599                 dev_info(&pf->pdev->dev, "  pfr\n");
1600                 dev_info(&pf->pdev->dev, "  corer\n");
1601                 dev_info(&pf->pdev->dev, "  globr\n");
1602                 dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1603                 dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1604                 dev_info(&pf->pdev->dev, "  fd current cnt");
1605                 dev_info(&pf->pdev->dev, "  lldp start\n");
1606                 dev_info(&pf->pdev->dev, "  lldp stop\n");
1607                 dev_info(&pf->pdev->dev, "  lldp get local\n");
1608                 dev_info(&pf->pdev->dev, "  lldp get remote\n");
1609                 dev_info(&pf->pdev->dev, "  lldp event on\n");
1610                 dev_info(&pf->pdev->dev, "  lldp event off\n");
1611                 dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1612         }
1613
1614 command_write_done:
1615         kfree(cmd_buf);
1616         cmd_buf = NULL;
1617         return count;
1618 }
1619
1620 static const struct file_operations i40e_dbg_command_fops = {
1621         .owner = THIS_MODULE,
1622         .open =  simple_open,
1623         .read =  i40e_dbg_command_read,
1624         .write = i40e_dbg_command_write,
1625 };
1626
1627 /**************************************************************
1628  * netdev_ops
1629  * The netdev_ops entry in debugfs is for giving the driver commands
1630  * to be executed from the netdev operations.
1631  **************************************************************/
1632 static char i40e_dbg_netdev_ops_buf[256] = "";
1633
1634 /**
1635  * i40e_dbg_netdev_ops_read - read for netdev_ops datum
1636  * @filp: the opened file
1637  * @buffer: where to write the data for the user to read
1638  * @count: the size of the user's buffer
1639  * @ppos: file position offset
1640  **/
1641 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1642                                         size_t count, loff_t *ppos)
1643 {
1644         struct i40e_pf *pf = filp->private_data;
1645         struct i40e_vsi *main_vsi;
1646         int bytes_not_copied;
1647         int buf_size = 256;
1648         char *buf;
1649         int len;
1650
1651         /* don't allow partal reads */
1652         if (*ppos != 0)
1653                 return 0;
1654         if (count < buf_size)
1655                 return -ENOSPC;
1656
1657         buf = kzalloc(buf_size, GFP_KERNEL);
1658         if (!buf)
1659                 return -ENOSPC;
1660
1661         main_vsi = i40e_pf_get_main_vsi(pf);
1662         len = snprintf(buf, buf_size, "%s: %s\n", main_vsi->netdev->name,
1663                        i40e_dbg_netdev_ops_buf);
1664
1665         bytes_not_copied = copy_to_user(buffer, buf, len);
1666         kfree(buf);
1667
1668         if (bytes_not_copied)
1669                 return -EFAULT;
1670
1671         *ppos = len;
1672         return len;
1673 }
1674
1675 /**
1676  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1677  * @filp: the opened file
1678  * @buffer: where to find the user's data
1679  * @count: the length of the user's data
1680  * @ppos: file position offset
1681  **/
1682 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1683                                          const char __user *buffer,
1684                                          size_t count, loff_t *ppos)
1685 {
1686         struct i40e_pf *pf = filp->private_data;
1687         int bytes_not_copied;
1688         struct i40e_vsi *vsi;
1689         char *buf_tmp;
1690         int vsi_seid;
1691         int i, cnt;
1692
1693         /* don't allow partial writes */
1694         if (*ppos != 0)
1695                 return 0;
1696         if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1697                 return -ENOSPC;
1698
1699         memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1700         bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1701                                           buffer, count);
1702         if (bytes_not_copied)
1703                 return -EFAULT;
1704         i40e_dbg_netdev_ops_buf[count] = '\0';
1705
1706         buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
1707         if (buf_tmp) {
1708                 *buf_tmp = '\0';
1709                 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
1710         }
1711
1712         if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1713                 int mtu;
1714
1715                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1716                              &vsi_seid, &mtu);
1717                 if (cnt != 2) {
1718                         dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1719                         goto netdev_ops_write_done;
1720                 }
1721                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1722                 if (!vsi) {
1723                         dev_info(&pf->pdev->dev,
1724                                  "change_mtu: VSI %d not found\n", vsi_seid);
1725                 } else if (!vsi->netdev) {
1726                         dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
1727                                  vsi_seid);
1728                 } else if (rtnl_trylock()) {
1729                         vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
1730                                                                 mtu);
1731                         rtnl_unlock();
1732                         dev_info(&pf->pdev->dev, "change_mtu called\n");
1733                 } else {
1734                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1735                 }
1736
1737         } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1738                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1739                 if (cnt != 1) {
1740                         dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1741                         goto netdev_ops_write_done;
1742                 }
1743                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1744                 if (!vsi) {
1745                         dev_info(&pf->pdev->dev,
1746                                  "set_rx_mode: VSI %d not found\n", vsi_seid);
1747                 } else if (!vsi->netdev) {
1748                         dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
1749                                  vsi_seid);
1750                 } else if (rtnl_trylock()) {
1751                         vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1752                         rtnl_unlock();
1753                         dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1754                 } else {
1755                         dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1756                 }
1757
1758         } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1759                 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1760                 if (cnt != 1) {
1761                         dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1762                         goto netdev_ops_write_done;
1763                 }
1764                 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1765                 if (!vsi) {
1766                         dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
1767                                  vsi_seid);
1768                 } else if (!vsi->netdev) {
1769                         dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
1770                                  vsi_seid);
1771                 } else {
1772                         for (i = 0; i < vsi->num_q_vectors; i++)
1773                                 napi_schedule(&vsi->q_vectors[i]->napi);
1774                         dev_info(&pf->pdev->dev, "napi called\n");
1775                 }
1776         } else {
1777                 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
1778                          i40e_dbg_netdev_ops_buf);
1779                 dev_info(&pf->pdev->dev, "available commands\n");
1780                 dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
1781                 dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
1782                 dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
1783         }
1784 netdev_ops_write_done:
1785         return count;
1786 }
1787
1788 static const struct file_operations i40e_dbg_netdev_ops_fops = {
1789         .owner = THIS_MODULE,
1790         .open = simple_open,
1791         .read = i40e_dbg_netdev_ops_read,
1792         .write = i40e_dbg_netdev_ops_write,
1793 };
1794
1795 /**
1796  * i40e_dbg_pf_init - setup the debugfs directory for the PF
1797  * @pf: the PF that is starting up
1798  **/
1799 void i40e_dbg_pf_init(struct i40e_pf *pf)
1800 {
1801         const char *name = pci_name(pf->pdev);
1802
1803         pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
1804
1805         debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
1806                             &i40e_dbg_command_fops);
1807
1808         debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
1809                             &i40e_dbg_netdev_ops_fops);
1810 }
1811
1812 /**
1813  * i40e_dbg_pf_exit - clear out the PF's debugfs entries
1814  * @pf: the PF that is stopping
1815  **/
1816 void i40e_dbg_pf_exit(struct i40e_pf *pf)
1817 {
1818         debugfs_remove_recursive(pf->i40e_dbg_pf);
1819         pf->i40e_dbg_pf = NULL;
1820 }
1821
1822 /**
1823  * i40e_dbg_init - start up debugfs for the driver
1824  **/
1825 void i40e_dbg_init(void)
1826 {
1827         i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
1828         if (IS_ERR(i40e_dbg_root))
1829                 pr_info("init of debugfs failed\n");
1830 }
1831
1832 /**
1833  * i40e_dbg_exit - clean out the driver's debugfs entries
1834  **/
1835 void i40e_dbg_exit(void)
1836 {
1837         debugfs_remove_recursive(i40e_dbg_root);
1838         i40e_dbg_root = NULL;
1839 }
1840
1841 #endif /* CONFIG_DEBUG_FS */