1 /******************************************************************************* 2 * 3 * Intel Ethernet Controller XL710 Family Linux Driver 4 * Copyright(c) 2013 Intel Corporation. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 * 15 * You should have received a copy of the GNU General Public License along with 16 * this program; if not, write to the Free Software Foundation, Inc., 17 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * The full GNU General Public License is included in this distribution in 20 * the file called "COPYING". 21 * 22 * Contact Information: 23 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> 24 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 25 * 26 ******************************************************************************/ 27 28 #ifdef CONFIG_DEBUG_FS 29 30 #include <linux/fs.h> 31 #include <linux/debugfs.h> 32 33 #include "i40e.h" 34 35 static struct dentry *i40e_dbg_root; 36 37 /** 38 * i40e_dbg_find_vsi - searches for the vsi with the given seid 39 * @pf - the pf structure to search for the vsi 40 * @seid - seid of the vsi it is searching for 41 **/ 42 static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid) 43 { 44 int i; 45 46 if (seid < 0) 47 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid); 48 else 49 for (i = 0; i < pf->hw.func_caps.num_vsis; i++) 50 if (pf->vsi[i] && (pf->vsi[i]->seid == seid)) 51 return pf->vsi[i]; 52 53 return NULL; 54 } 55 56 /** 57 * i40e_dbg_find_veb - searches for the veb with the given seid 58 * @pf - the pf structure to search for the veb 59 * @seid - seid of the veb it is searching for 60 **/ 61 static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid) 62 { 63 int i; 64 65 if ((seid < I40E_BASE_VEB_SEID) || 66 (seid > (I40E_BASE_VEB_SEID + I40E_MAX_VEB))) 67 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid); 68 else 69 for (i = 0; i < I40E_MAX_VEB; i++) 70 if (pf->veb[i] && pf->veb[i]->seid == seid) 71 return pf->veb[i]; 72 return NULL; 73 } 74 75 /************************************************************** 76 * dump 77 * The dump entry in debugfs is for getting a data snapshow of 78 * the driver's current configuration and runtime details. 79 * When the filesystem entry is written, a snapshot is taken. 80 * When the entry is read, the most recent snapshot data is dumped. 81 **************************************************************/ 82 static char *i40e_dbg_dump_buf; 83 static ssize_t i40e_dbg_dump_data_len; 84 static ssize_t i40e_dbg_dump_buffer_len; 85 86 /** 87 * i40e_dbg_dump_read - read the dump data 88 * @filp: the opened file 89 * @buffer: where to write the data for the user to read 90 * @count: the size of the user's buffer 91 * @ppos: file position offset 92 **/ 93 static ssize_t i40e_dbg_dump_read(struct file *filp, char __user *buffer, 94 size_t count, loff_t *ppos) 95 { 96 int bytes_not_copied; 97 int len; 98 99 /* is *ppos bigger than the available data? */ 100 if (*ppos >= i40e_dbg_dump_data_len || !i40e_dbg_dump_buf) 101 return 0; 102 103 /* be sure to not read beyond the end of available data */ 104 len = min_t(int, count, (i40e_dbg_dump_data_len - *ppos)); 105 106 bytes_not_copied = copy_to_user(buffer, &i40e_dbg_dump_buf[*ppos], len); 107 if (bytes_not_copied < 0) 108 return bytes_not_copied; 109 110 *ppos += len; 111 return len; 112 } 113 114 /** 115 * i40e_dbg_prep_dump_buf 116 * @pf: the pf we're working with 117 * @buflen: the desired buffer length 118 * 119 * Return positive if success, 0 if failed 120 **/ 121 static int i40e_dbg_prep_dump_buf(struct i40e_pf *pf, int buflen) 122 { 123 /* if not already big enough, prep for re alloc */ 124 if (i40e_dbg_dump_buffer_len && i40e_dbg_dump_buffer_len < buflen) { 125 kfree(i40e_dbg_dump_buf); 126 i40e_dbg_dump_buffer_len = 0; 127 i40e_dbg_dump_buf = NULL; 128 } 129 130 /* get a new buffer if needed */ 131 if (!i40e_dbg_dump_buf) { 132 i40e_dbg_dump_buf = kzalloc(buflen, GFP_KERNEL); 133 if (i40e_dbg_dump_buf != NULL) 134 i40e_dbg_dump_buffer_len = buflen; 135 } 136 137 return i40e_dbg_dump_buffer_len; 138 } 139 140 /** 141 * i40e_dbg_dump_write - trigger a datadump snapshot 142 * @filp: the opened file 143 * @buffer: where to find the user's data 144 * @count: the length of the user's data 145 * @ppos: file position offset 146 * 147 * Any write clears the stats 148 **/ 149 static ssize_t i40e_dbg_dump_write(struct file *filp, 150 const char __user *buffer, 151 size_t count, loff_t *ppos) 152 { 153 struct i40e_pf *pf = filp->private_data; 154 bool seid_found = false; 155 long seid = -1; 156 int buflen = 0; 157 int i, ret; 158 int len; 159 u8 *p; 160 161 /* don't allow partial writes */ 162 if (*ppos != 0) 163 return 0; 164 165 /* decode the SEID given to be dumped */ 166 ret = kstrtol_from_user(buffer, count, 0, &seid); 167 168 if (ret) { 169 dev_info(&pf->pdev->dev, "bad seid value\n"); 170 } else if (seid == 0) { 171 seid_found = true; 172 173 kfree(i40e_dbg_dump_buf); 174 i40e_dbg_dump_buffer_len = 0; 175 i40e_dbg_dump_data_len = 0; 176 i40e_dbg_dump_buf = NULL; 177 dev_info(&pf->pdev->dev, "debug buffer freed\n"); 178 179 } else if (seid == pf->pf_seid || seid == 1) { 180 seid_found = true; 181 182 buflen = sizeof(struct i40e_pf); 183 buflen += (sizeof(struct i40e_aq_desc) 184 * (pf->hw.aq.num_arq_entries + pf->hw.aq.num_asq_entries)); 185 186 if (i40e_dbg_prep_dump_buf(pf, buflen)) { 187 p = i40e_dbg_dump_buf; 188 189 len = sizeof(struct i40e_pf); 190 memcpy(p, pf, len); 191 p += len; 192 193 len = (sizeof(struct i40e_aq_desc) 194 * pf->hw.aq.num_asq_entries); 195 memcpy(p, pf->hw.aq.asq.desc, len); 196 p += len; 197 198 len = (sizeof(struct i40e_aq_desc) 199 * pf->hw.aq.num_arq_entries); 200 memcpy(p, pf->hw.aq.arq.desc, len); 201 p += len; 202 203 i40e_dbg_dump_data_len = buflen; 204 dev_info(&pf->pdev->dev, 205 "PF seid %ld dumped %d bytes\n", 206 seid, (int)i40e_dbg_dump_data_len); 207 } 208 } else if (seid >= I40E_BASE_VSI_SEID) { 209 struct i40e_vsi *vsi = NULL; 210 struct i40e_mac_filter *f; 211 int filter_count = 0; 212 213 mutex_lock(&pf->switch_mutex); 214 vsi = i40e_dbg_find_vsi(pf, seid); 215 if (!vsi) { 216 mutex_unlock(&pf->switch_mutex); 217 goto write_exit; 218 } 219 220 buflen = sizeof(struct i40e_vsi); 221 buflen += sizeof(struct i40e_q_vector) * vsi->num_q_vectors; 222 buflen += sizeof(struct i40e_ring) * 2 * vsi->num_queue_pairs; 223 buflen += sizeof(struct i40e_tx_buffer) * vsi->num_queue_pairs; 224 buflen += sizeof(struct i40e_rx_buffer) * vsi->num_queue_pairs; 225 list_for_each_entry(f, &vsi->mac_filter_list, list) 226 filter_count++; 227 buflen += sizeof(struct i40e_mac_filter) * filter_count; 228 229 if (i40e_dbg_prep_dump_buf(pf, buflen)) { 230 p = i40e_dbg_dump_buf; 231 seid_found = true; 232 233 len = sizeof(struct i40e_vsi); 234 memcpy(p, vsi, len); 235 p += len; 236 237 if (vsi->num_q_vectors) { 238 len = (sizeof(struct i40e_q_vector) 239 * vsi->num_q_vectors); 240 memcpy(p, vsi->q_vectors, len); 241 p += len; 242 } 243 244 if (vsi->num_queue_pairs) { 245 len = (sizeof(struct i40e_ring) * 246 vsi->num_queue_pairs); 247 memcpy(p, vsi->tx_rings, len); 248 p += len; 249 memcpy(p, vsi->rx_rings, len); 250 p += len; 251 } 252 253 if (vsi->tx_rings[0]) { 254 len = sizeof(struct i40e_tx_buffer); 255 for (i = 0; i < vsi->num_queue_pairs; i++) { 256 memcpy(p, vsi->tx_rings[i]->tx_bi, len); 257 p += len; 258 } 259 len = sizeof(struct i40e_rx_buffer); 260 for (i = 0; i < vsi->num_queue_pairs; i++) { 261 memcpy(p, vsi->rx_rings[i]->rx_bi, len); 262 p += len; 263 } 264 } 265 266 /* macvlan filter list */ 267 len = sizeof(struct i40e_mac_filter); 268 list_for_each_entry(f, &vsi->mac_filter_list, list) { 269 memcpy(p, f, len); 270 p += len; 271 } 272 273 i40e_dbg_dump_data_len = buflen; 274 dev_info(&pf->pdev->dev, 275 "VSI seid %ld dumped %d bytes\n", 276 seid, (int)i40e_dbg_dump_data_len); 277 } 278 mutex_unlock(&pf->switch_mutex); 279 } else if (seid >= I40E_BASE_VEB_SEID) { 280 struct i40e_veb *veb = NULL; 281 282 mutex_lock(&pf->switch_mutex); 283 veb = i40e_dbg_find_veb(pf, seid); 284 if (!veb) { 285 mutex_unlock(&pf->switch_mutex); 286 goto write_exit; 287 } 288 289 buflen = sizeof(struct i40e_veb); 290 if (i40e_dbg_prep_dump_buf(pf, buflen)) { 291 seid_found = true; 292 memcpy(i40e_dbg_dump_buf, veb, buflen); 293 i40e_dbg_dump_data_len = buflen; 294 dev_info(&pf->pdev->dev, 295 "VEB seid %ld dumped %d bytes\n", 296 seid, (int)i40e_dbg_dump_data_len); 297 } 298 mutex_unlock(&pf->switch_mutex); 299 } 300 301 write_exit: 302 if (!seid_found) 303 dev_info(&pf->pdev->dev, "unknown seid %ld\n", seid); 304 305 return count; 306 } 307 308 static const struct file_operations i40e_dbg_dump_fops = { 309 .owner = THIS_MODULE, 310 .open = simple_open, 311 .read = i40e_dbg_dump_read, 312 .write = i40e_dbg_dump_write, 313 }; 314 315 /************************************************************** 316 * command 317 * The command entry in debugfs is for giving the driver commands 318 * to be executed - these may be for changing the internal switch 319 * setup, adding or removing filters, or other things. Many of 320 * these will be useful for some forms of unit testing. 321 **************************************************************/ 322 static char i40e_dbg_command_buf[256] = "hello world"; 323 324 /** 325 * i40e_dbg_command_read - read for command datum 326 * @filp: the opened file 327 * @buffer: where to write the data for the user to read 328 * @count: the size of the user's buffer 329 * @ppos: file position offset 330 **/ 331 static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer, 332 size_t count, loff_t *ppos) 333 { 334 struct i40e_pf *pf = filp->private_data; 335 int bytes_not_copied; 336 int buf_size = 256; 337 char *buf; 338 int len; 339 340 /* don't allow partial reads */ 341 if (*ppos != 0) 342 return 0; 343 if (count < buf_size) 344 return -ENOSPC; 345 346 buf = kzalloc(buf_size, GFP_KERNEL); 347 if (!buf) 348 return -ENOSPC; 349 350 len = snprintf(buf, buf_size, "%s: %s\n", 351 pf->vsi[pf->lan_vsi]->netdev->name, 352 i40e_dbg_command_buf); 353 354 bytes_not_copied = copy_to_user(buffer, buf, len); 355 kfree(buf); 356 357 if (bytes_not_copied < 0) 358 return bytes_not_copied; 359 360 *ppos = len; 361 return len; 362 } 363 364 /** 365 * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum 366 * @pf: the i40e_pf created in command write 367 * @seid: the seid the user put in 368 **/ 369 static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid) 370 { 371 struct rtnl_link_stats64 *nstat; 372 struct i40e_mac_filter *f; 373 struct i40e_vsi *vsi; 374 int i; 375 376 vsi = i40e_dbg_find_vsi(pf, seid); 377 if (!vsi) { 378 dev_info(&pf->pdev->dev, 379 "dump %d: seid not found\n", seid); 380 return; 381 } 382 dev_info(&pf->pdev->dev, "vsi seid %d\n", seid); 383 if (vsi->netdev) 384 dev_info(&pf->pdev->dev, 385 " netdev: name = %s\n", 386 vsi->netdev->name); 387 if (vsi->active_vlans) 388 dev_info(&pf->pdev->dev, 389 " vlgrp: & = %p\n", vsi->active_vlans); 390 dev_info(&pf->pdev->dev, 391 " netdev_registered = %i, current_netdev_flags = 0x%04x, state = %li flags = 0x%08lx\n", 392 vsi->netdev_registered, 393 vsi->current_netdev_flags, vsi->state, vsi->flags); 394 list_for_each_entry(f, &vsi->mac_filter_list, list) { 395 dev_info(&pf->pdev->dev, 396 " mac_filter_list: %pM vid=%d, is_netdev=%d is_vf=%d counter=%d\n", 397 f->macaddr, f->vlan, f->is_netdev, f->is_vf, 398 f->counter); 399 } 400 nstat = i40e_get_vsi_stats_struct(vsi); 401 dev_info(&pf->pdev->dev, 402 " net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n", 403 (long unsigned int)nstat->rx_packets, 404 (long unsigned int)nstat->rx_bytes, 405 (long unsigned int)nstat->rx_errors, 406 (long unsigned int)nstat->rx_dropped); 407 dev_info(&pf->pdev->dev, 408 " net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n", 409 (long unsigned int)nstat->tx_packets, 410 (long unsigned int)nstat->tx_bytes, 411 (long unsigned int)nstat->tx_errors, 412 (long unsigned int)nstat->tx_dropped); 413 dev_info(&pf->pdev->dev, 414 " net_stats: multicast = %lu, collisions = %lu\n", 415 (long unsigned int)nstat->multicast, 416 (long unsigned int)nstat->collisions); 417 dev_info(&pf->pdev->dev, 418 " net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n", 419 (long unsigned int)nstat->rx_length_errors, 420 (long unsigned int)nstat->rx_over_errors, 421 (long unsigned int)nstat->rx_crc_errors); 422 dev_info(&pf->pdev->dev, 423 " net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n", 424 (long unsigned int)nstat->rx_frame_errors, 425 (long unsigned int)nstat->rx_fifo_errors, 426 (long unsigned int)nstat->rx_missed_errors); 427 dev_info(&pf->pdev->dev, 428 " net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n", 429 (long unsigned int)nstat->tx_aborted_errors, 430 (long unsigned int)nstat->tx_carrier_errors, 431 (long unsigned int)nstat->tx_fifo_errors); 432 dev_info(&pf->pdev->dev, 433 " net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n", 434 (long unsigned int)nstat->tx_heartbeat_errors, 435 (long unsigned int)nstat->tx_window_errors); 436 dev_info(&pf->pdev->dev, 437 " net_stats: rx_compressed = %lu, tx_compressed = %lu\n", 438 (long unsigned int)nstat->rx_compressed, 439 (long unsigned int)nstat->tx_compressed); 440 dev_info(&pf->pdev->dev, 441 " net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n", 442 (long unsigned int)vsi->net_stats_offsets.rx_packets, 443 (long unsigned int)vsi->net_stats_offsets.rx_bytes, 444 (long unsigned int)vsi->net_stats_offsets.rx_errors, 445 (long unsigned int)vsi->net_stats_offsets.rx_dropped); 446 dev_info(&pf->pdev->dev, 447 " net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n", 448 (long unsigned int)vsi->net_stats_offsets.tx_packets, 449 (long unsigned int)vsi->net_stats_offsets.tx_bytes, 450 (long unsigned int)vsi->net_stats_offsets.tx_errors, 451 (long unsigned int)vsi->net_stats_offsets.tx_dropped); 452 dev_info(&pf->pdev->dev, 453 " net_stats_offsets: multicast = %lu, collisions = %lu\n", 454 (long unsigned int)vsi->net_stats_offsets.multicast, 455 (long unsigned int)vsi->net_stats_offsets.collisions); 456 dev_info(&pf->pdev->dev, 457 " net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n", 458 (long unsigned int)vsi->net_stats_offsets.rx_length_errors, 459 (long unsigned int)vsi->net_stats_offsets.rx_over_errors, 460 (long unsigned int)vsi->net_stats_offsets.rx_crc_errors); 461 dev_info(&pf->pdev->dev, 462 " net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n", 463 (long unsigned int)vsi->net_stats_offsets.rx_frame_errors, 464 (long unsigned int)vsi->net_stats_offsets.rx_fifo_errors, 465 (long unsigned int)vsi->net_stats_offsets.rx_missed_errors); 466 dev_info(&pf->pdev->dev, 467 " net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n", 468 (long unsigned int)vsi->net_stats_offsets.tx_aborted_errors, 469 (long unsigned int)vsi->net_stats_offsets.tx_carrier_errors, 470 (long unsigned int)vsi->net_stats_offsets.tx_fifo_errors); 471 dev_info(&pf->pdev->dev, 472 " net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n", 473 (long unsigned int)vsi->net_stats_offsets.tx_heartbeat_errors, 474 (long unsigned int)vsi->net_stats_offsets.tx_window_errors); 475 dev_info(&pf->pdev->dev, 476 " net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n", 477 (long unsigned int)vsi->net_stats_offsets.rx_compressed, 478 (long unsigned int)vsi->net_stats_offsets.tx_compressed); 479 dev_info(&pf->pdev->dev, 480 " tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n", 481 vsi->tx_restart, vsi->tx_busy, 482 vsi->rx_buf_failed, vsi->rx_page_failed); 483 rcu_read_lock(); 484 for (i = 0; i < vsi->num_queue_pairs; i++) { 485 struct i40e_ring *rx_ring = ACCESS_ONCE(vsi->rx_rings[i]); 486 if (!rx_ring) 487 continue; 488 489 dev_info(&pf->pdev->dev, 490 " rx_rings[%i]: desc = %p\n", 491 i, rx_ring->desc); 492 dev_info(&pf->pdev->dev, 493 " rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n", 494 i, rx_ring->dev, 495 rx_ring->netdev, 496 rx_ring->rx_bi); 497 dev_info(&pf->pdev->dev, 498 " rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n", 499 i, rx_ring->state, 500 rx_ring->queue_index, 501 rx_ring->reg_idx); 502 dev_info(&pf->pdev->dev, 503 " rx_rings[%i]: rx_hdr_len = %d, rx_buf_len = %d, dtype = %d\n", 504 i, rx_ring->rx_hdr_len, 505 rx_ring->rx_buf_len, 506 rx_ring->dtype); 507 dev_info(&pf->pdev->dev, 508 " rx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n", 509 i, rx_ring->hsplit, 510 rx_ring->next_to_use, 511 rx_ring->next_to_clean, 512 rx_ring->ring_active); 513 dev_info(&pf->pdev->dev, 514 " rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n", 515 i, rx_ring->stats.packets, 516 rx_ring->stats.bytes, 517 rx_ring->rx_stats.non_eop_descs); 518 dev_info(&pf->pdev->dev, 519 " rx_rings[%i]: rx_stats: alloc_rx_page_failed = %lld, alloc_rx_buff_failed = %lld\n", 520 i, 521 rx_ring->rx_stats.alloc_rx_page_failed, 522 rx_ring->rx_stats.alloc_rx_buff_failed); 523 dev_info(&pf->pdev->dev, 524 " rx_rings[%i]: size = %i, dma = 0x%08lx\n", 525 i, rx_ring->size, 526 (long unsigned int)rx_ring->dma); 527 dev_info(&pf->pdev->dev, 528 " rx_rings[%i]: vsi = %p, q_vector = %p\n", 529 i, rx_ring->vsi, 530 rx_ring->q_vector); 531 } 532 for (i = 0; i < vsi->num_queue_pairs; i++) { 533 struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]); 534 if (!tx_ring) 535 continue; 536 dev_info(&pf->pdev->dev, 537 " tx_rings[%i]: desc = %p\n", 538 i, tx_ring->desc); 539 dev_info(&pf->pdev->dev, 540 " tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n", 541 i, tx_ring->dev, 542 tx_ring->netdev, 543 tx_ring->tx_bi); 544 dev_info(&pf->pdev->dev, 545 " tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n", 546 i, tx_ring->state, 547 tx_ring->queue_index, 548 tx_ring->reg_idx); 549 dev_info(&pf->pdev->dev, 550 " tx_rings[%i]: dtype = %d\n", 551 i, tx_ring->dtype); 552 dev_info(&pf->pdev->dev, 553 " tx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n", 554 i, tx_ring->hsplit, 555 tx_ring->next_to_use, 556 tx_ring->next_to_clean, 557 tx_ring->ring_active); 558 dev_info(&pf->pdev->dev, 559 " tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n", 560 i, tx_ring->stats.packets, 561 tx_ring->stats.bytes, 562 tx_ring->tx_stats.restart_queue); 563 dev_info(&pf->pdev->dev, 564 " tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n", 565 i, 566 tx_ring->tx_stats.tx_busy, 567 tx_ring->tx_stats.tx_done_old); 568 dev_info(&pf->pdev->dev, 569 " tx_rings[%i]: size = %i, dma = 0x%08lx\n", 570 i, tx_ring->size, 571 (long unsigned int)tx_ring->dma); 572 dev_info(&pf->pdev->dev, 573 " tx_rings[%i]: vsi = %p, q_vector = %p\n", 574 i, tx_ring->vsi, 575 tx_ring->q_vector); 576 dev_info(&pf->pdev->dev, 577 " tx_rings[%i]: DCB tc = %d\n", 578 i, tx_ring->dcb_tc); 579 } 580 rcu_read_unlock(); 581 dev_info(&pf->pdev->dev, 582 " work_limit = %d, rx_itr_setting = %d (%s), tx_itr_setting = %d (%s)\n", 583 vsi->work_limit, vsi->rx_itr_setting, 584 ITR_IS_DYNAMIC(vsi->rx_itr_setting) ? "dynamic" : "fixed", 585 vsi->tx_itr_setting, 586 ITR_IS_DYNAMIC(vsi->tx_itr_setting) ? "dynamic" : "fixed"); 587 dev_info(&pf->pdev->dev, 588 " max_frame = %d, rx_hdr_len = %d, rx_buf_len = %d dtype = %d\n", 589 vsi->max_frame, vsi->rx_hdr_len, vsi->rx_buf_len, vsi->dtype); 590 dev_info(&pf->pdev->dev, 591 " num_q_vectors = %i, base_vector = %i\n", 592 vsi->num_q_vectors, vsi->base_vector); 593 dev_info(&pf->pdev->dev, 594 " seid = %d, id = %d, uplink_seid = %d\n", 595 vsi->seid, vsi->id, vsi->uplink_seid); 596 dev_info(&pf->pdev->dev, 597 " base_queue = %d, num_queue_pairs = %d, num_desc = %d\n", 598 vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc); 599 dev_info(&pf->pdev->dev, " type = %i\n", vsi->type); 600 dev_info(&pf->pdev->dev, 601 " info: valid_sections = 0x%04x, switch_id = 0x%04x\n", 602 vsi->info.valid_sections, vsi->info.switch_id); 603 dev_info(&pf->pdev->dev, 604 " info: sw_reserved[] = 0x%02x 0x%02x\n", 605 vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]); 606 dev_info(&pf->pdev->dev, 607 " info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n", 608 vsi->info.sec_flags, vsi->info.sec_reserved); 609 dev_info(&pf->pdev->dev, 610 " info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n", 611 vsi->info.pvid, vsi->info.fcoe_pvid, 612 vsi->info.port_vlan_flags); 613 dev_info(&pf->pdev->dev, 614 " info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n", 615 vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1], 616 vsi->info.pvlan_reserved[2]); 617 dev_info(&pf->pdev->dev, 618 " info: ingress_table = 0x%08x, egress_table = 0x%08x\n", 619 vsi->info.ingress_table, vsi->info.egress_table); 620 dev_info(&pf->pdev->dev, 621 " info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n", 622 vsi->info.cas_pv_tag, vsi->info.cas_pv_flags, 623 vsi->info.cas_pv_reserved); 624 dev_info(&pf->pdev->dev, 625 " info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n", 626 vsi->info.queue_mapping[0], vsi->info.queue_mapping[1], 627 vsi->info.queue_mapping[2], vsi->info.queue_mapping[3], 628 vsi->info.queue_mapping[4], vsi->info.queue_mapping[5], 629 vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]); 630 dev_info(&pf->pdev->dev, 631 " info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n", 632 vsi->info.queue_mapping[8], vsi->info.queue_mapping[9], 633 vsi->info.queue_mapping[10], vsi->info.queue_mapping[11], 634 vsi->info.queue_mapping[12], vsi->info.queue_mapping[13], 635 vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]); 636 dev_info(&pf->pdev->dev, 637 " info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n", 638 vsi->info.tc_mapping[0], vsi->info.tc_mapping[1], 639 vsi->info.tc_mapping[2], vsi->info.tc_mapping[3], 640 vsi->info.tc_mapping[4], vsi->info.tc_mapping[5], 641 vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]); 642 dev_info(&pf->pdev->dev, 643 " info: queueing_opt_flags = 0x%02x queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n", 644 vsi->info.queueing_opt_flags, 645 vsi->info.queueing_opt_reserved[0], 646 vsi->info.queueing_opt_reserved[1], 647 vsi->info.queueing_opt_reserved[2]); 648 dev_info(&pf->pdev->dev, 649 " info: up_enable_bits = 0x%02x\n", 650 vsi->info.up_enable_bits); 651 dev_info(&pf->pdev->dev, 652 " info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n", 653 vsi->info.sched_reserved, vsi->info.outer_up_table); 654 dev_info(&pf->pdev->dev, 655 " info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n", 656 vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1], 657 vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3], 658 vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5], 659 vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]); 660 dev_info(&pf->pdev->dev, 661 " info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n", 662 vsi->info.qs_handle[0], vsi->info.qs_handle[1], 663 vsi->info.qs_handle[2], vsi->info.qs_handle[3], 664 vsi->info.qs_handle[4], vsi->info.qs_handle[5], 665 vsi->info.qs_handle[6], vsi->info.qs_handle[7]); 666 dev_info(&pf->pdev->dev, 667 " info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n", 668 vsi->info.stat_counter_idx, vsi->info.sched_id); 669 dev_info(&pf->pdev->dev, 670 " info: resp_reserved[] = 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n", 671 vsi->info.resp_reserved[0], vsi->info.resp_reserved[1], 672 vsi->info.resp_reserved[2], vsi->info.resp_reserved[3], 673 vsi->info.resp_reserved[4], vsi->info.resp_reserved[5], 674 vsi->info.resp_reserved[6], vsi->info.resp_reserved[7], 675 vsi->info.resp_reserved[8], vsi->info.resp_reserved[9], 676 vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]); 677 if (vsi->back) 678 dev_info(&pf->pdev->dev, " pf = %p\n", vsi->back); 679 dev_info(&pf->pdev->dev, " idx = %d\n", vsi->idx); 680 dev_info(&pf->pdev->dev, 681 " tc_config: numtc = %d, enabled_tc = 0x%x\n", 682 vsi->tc_config.numtc, vsi->tc_config.enabled_tc); 683 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 684 dev_info(&pf->pdev->dev, 685 " tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n", 686 i, vsi->tc_config.tc_info[i].qoffset, 687 vsi->tc_config.tc_info[i].qcount, 688 vsi->tc_config.tc_info[i].netdev_tc); 689 } 690 dev_info(&pf->pdev->dev, 691 " bw: bw_limit = %d, bw_max_quanta = %d\n", 692 vsi->bw_limit, vsi->bw_max_quanta); 693 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 694 dev_info(&pf->pdev->dev, 695 " bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n", 696 i, vsi->bw_ets_share_credits[i], 697 vsi->bw_ets_limit_credits[i], 698 vsi->bw_ets_max_quanta[i]); 699 } 700 } 701 702 /** 703 * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum 704 * @pf: the i40e_pf created in command write 705 **/ 706 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf) 707 { 708 struct i40e_adminq_ring *ring; 709 struct i40e_hw *hw = &pf->hw; 710 char hdr[32]; 711 int i; 712 713 snprintf(hdr, sizeof(hdr), "%s %s: ", 714 dev_driver_string(&pf->pdev->dev), 715 dev_name(&pf->pdev->dev)); 716 717 /* first the send (command) ring, then the receive (event) ring */ 718 dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n"); 719 ring = &(hw->aq.asq); 720 for (i = 0; i < ring->count; i++) { 721 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i); 722 dev_info(&pf->pdev->dev, 723 " at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n", 724 i, d->flags, d->opcode, d->datalen, d->retval, 725 d->cookie_high, d->cookie_low); 726 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE, 727 16, 1, d->params.raw, 16, 0); 728 } 729 730 dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n"); 731 ring = &(hw->aq.arq); 732 for (i = 0; i < ring->count; i++) { 733 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i); 734 dev_info(&pf->pdev->dev, 735 " ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n", 736 i, d->flags, d->opcode, d->datalen, d->retval, 737 d->cookie_high, d->cookie_low); 738 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE, 739 16, 1, d->params.raw, 16, 0); 740 } 741 } 742 743 /** 744 * i40e_dbg_dump_desc - handles dump desc write into command datum 745 * @cnt: number of arguments that the user supplied 746 * @vsi_seid: vsi id entered by user 747 * @ring_id: ring id entered by user 748 * @desc_n: descriptor number entered by user 749 * @pf: the i40e_pf created in command write 750 * @is_rx_ring: true if rx, false if tx 751 **/ 752 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n, 753 struct i40e_pf *pf, bool is_rx_ring) 754 { 755 union i40e_rx_desc *ds; 756 struct i40e_ring ring; 757 struct i40e_vsi *vsi; 758 int i; 759 760 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 761 if (!vsi) { 762 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid); 763 return; 764 } 765 if (ring_id >= vsi->num_queue_pairs || ring_id < 0) { 766 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id); 767 return; 768 } 769 if (!vsi->tx_rings) { 770 dev_info(&pf->pdev->dev, 771 "descriptor rings have not been allocated for vsi %d\n", 772 vsi_seid); 773 return; 774 } 775 if (is_rx_ring) 776 ring = *vsi->rx_rings[ring_id]; 777 else 778 ring = *vsi->tx_rings[ring_id]; 779 if (cnt == 2) { 780 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n", 781 vsi_seid, is_rx_ring ? "rx" : "tx", ring_id); 782 for (i = 0; i < ring.count; i++) { 783 if (is_rx_ring) 784 ds = I40E_RX_DESC(&ring, i); 785 else 786 ds = (union i40e_rx_desc *) 787 I40E_TX_DESC(&ring, i); 788 if ((sizeof(union i40e_rx_desc) == 789 sizeof(union i40e_16byte_rx_desc)) || (!is_rx_ring)) 790 dev_info(&pf->pdev->dev, 791 " d[%03i] = 0x%016llx 0x%016llx\n", i, 792 ds->read.pkt_addr, ds->read.hdr_addr); 793 else 794 dev_info(&pf->pdev->dev, 795 " d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n", 796 i, ds->read.pkt_addr, 797 ds->read.hdr_addr, 798 ds->read.rsvd1, ds->read.rsvd2); 799 } 800 } else if (cnt == 3) { 801 if (desc_n >= ring.count || desc_n < 0) { 802 dev_info(&pf->pdev->dev, 803 "descriptor %d not found\n", desc_n); 804 return; 805 } 806 if (is_rx_ring) 807 ds = I40E_RX_DESC(&ring, desc_n); 808 else 809 ds = (union i40e_rx_desc *)I40E_TX_DESC(&ring, desc_n); 810 if ((sizeof(union i40e_rx_desc) == 811 sizeof(union i40e_16byte_rx_desc)) || (!is_rx_ring)) 812 dev_info(&pf->pdev->dev, 813 "vsi = %02i %s ring = %02i d[%03i] = 0x%016llx 0x%016llx\n", 814 vsi_seid, is_rx_ring ? "rx" : "tx", ring_id, 815 desc_n, ds->read.pkt_addr, ds->read.hdr_addr); 816 else 817 dev_info(&pf->pdev->dev, 818 "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n", 819 vsi_seid, ring_id, 820 desc_n, ds->read.pkt_addr, ds->read.hdr_addr, 821 ds->read.rsvd1, ds->read.rsvd2); 822 } else { 823 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n"); 824 } 825 } 826 827 /** 828 * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum 829 * @pf: the i40e_pf created in command write 830 **/ 831 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf) 832 { 833 int i; 834 835 for (i = 0; i < pf->hw.func_caps.num_vsis; i++) 836 if (pf->vsi[i]) 837 dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n", 838 i, pf->vsi[i]->seid); 839 } 840 841 /** 842 * i40e_dbg_dump_stats - handles dump stats write into command datum 843 * @pf: the i40e_pf created in command write 844 * @estats: the eth stats structure to be dumped 845 **/ 846 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf, 847 struct i40e_eth_stats *estats) 848 { 849 dev_info(&pf->pdev->dev, " ethstats:\n"); 850 dev_info(&pf->pdev->dev, 851 " rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n", 852 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast); 853 dev_info(&pf->pdev->dev, 854 " rx_broadcast = \t%lld \trx_discards = \t\t%lld \trx_errors = \t%lld\n", 855 estats->rx_broadcast, estats->rx_discards, estats->rx_errors); 856 dev_info(&pf->pdev->dev, 857 " rx_missed = \t%lld \trx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n", 858 estats->rx_missed, estats->rx_unknown_protocol, 859 estats->tx_bytes); 860 dev_info(&pf->pdev->dev, 861 " tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n", 862 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast); 863 dev_info(&pf->pdev->dev, 864 " tx_discards = \t%lld \ttx_errors = \t\t%lld\n", 865 estats->tx_discards, estats->tx_errors); 866 } 867 868 /** 869 * i40e_dbg_dump_stats - handles dump stats write into command datum 870 * @pf: the i40e_pf created in command write 871 * @stats: the stats structure to be dumped 872 **/ 873 static void i40e_dbg_dump_stats(struct i40e_pf *pf, 874 struct i40e_hw_port_stats *stats) 875 { 876 int i; 877 878 dev_info(&pf->pdev->dev, " stats:\n"); 879 dev_info(&pf->pdev->dev, 880 " crc_errors = \t\t%lld \tillegal_bytes = \t%lld \terror_bytes = \t\t%lld\n", 881 stats->crc_errors, stats->illegal_bytes, stats->error_bytes); 882 dev_info(&pf->pdev->dev, 883 " mac_local_faults = \t%lld \tmac_remote_faults = \t%lld \trx_length_errors = \t%lld\n", 884 stats->mac_local_faults, stats->mac_remote_faults, 885 stats->rx_length_errors); 886 dev_info(&pf->pdev->dev, 887 " link_xon_rx = \t\t%lld \tlink_xoff_rx = \t\t%lld \tlink_xon_tx = \t\t%lld\n", 888 stats->link_xon_rx, stats->link_xoff_rx, stats->link_xon_tx); 889 dev_info(&pf->pdev->dev, 890 " link_xoff_tx = \t\t%lld \trx_size_64 = \t\t%lld \trx_size_127 = \t\t%lld\n", 891 stats->link_xoff_tx, stats->rx_size_64, stats->rx_size_127); 892 dev_info(&pf->pdev->dev, 893 " rx_size_255 = \t\t%lld \trx_size_511 = \t\t%lld \trx_size_1023 = \t\t%lld\n", 894 stats->rx_size_255, stats->rx_size_511, stats->rx_size_1023); 895 dev_info(&pf->pdev->dev, 896 " rx_size_big = \t\t%lld \trx_undersize = \t\t%lld \trx_jabber = \t\t%lld\n", 897 stats->rx_size_big, stats->rx_undersize, stats->rx_jabber); 898 dev_info(&pf->pdev->dev, 899 " rx_fragments = \t\t%lld \trx_oversize = \t\t%lld \ttx_size_64 = \t\t%lld\n", 900 stats->rx_fragments, stats->rx_oversize, stats->tx_size_64); 901 dev_info(&pf->pdev->dev, 902 " tx_size_127 = \t\t%lld \ttx_size_255 = \t\t%lld \ttx_size_511 = \t\t%lld\n", 903 stats->tx_size_127, stats->tx_size_255, stats->tx_size_511); 904 dev_info(&pf->pdev->dev, 905 " tx_size_1023 = \t\t%lld \ttx_size_big = \t\t%lld \tmac_short_packet_dropped = \t%lld\n", 906 stats->tx_size_1023, stats->tx_size_big, 907 stats->mac_short_packet_dropped); 908 for (i = 0; i < 8; i += 4) { 909 dev_info(&pf->pdev->dev, 910 " priority_xon_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 911 i, stats->priority_xon_rx[i], 912 i+1, stats->priority_xon_rx[i+1], 913 i+2, stats->priority_xon_rx[i+2], 914 i+3, stats->priority_xon_rx[i+3]); 915 } 916 for (i = 0; i < 8; i += 4) { 917 dev_info(&pf->pdev->dev, 918 " priority_xoff_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 919 i, stats->priority_xoff_rx[i], 920 i+1, stats->priority_xoff_rx[i+1], 921 i+2, stats->priority_xoff_rx[i+2], 922 i+3, stats->priority_xoff_rx[i+3]); 923 } 924 for (i = 0; i < 8; i += 4) { 925 dev_info(&pf->pdev->dev, 926 " priority_xon_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 927 i, stats->priority_xon_tx[i], 928 i+1, stats->priority_xon_tx[i+1], 929 i+2, stats->priority_xon_tx[i+2], 930 i+3, stats->priority_xon_rx[i+3]); 931 } 932 for (i = 0; i < 8; i += 4) { 933 dev_info(&pf->pdev->dev, 934 " priority_xoff_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 935 i, stats->priority_xoff_tx[i], 936 i+1, stats->priority_xoff_tx[i+1], 937 i+2, stats->priority_xoff_tx[i+2], 938 i+3, stats->priority_xoff_tx[i+3]); 939 } 940 for (i = 0; i < 8; i += 4) { 941 dev_info(&pf->pdev->dev, 942 " priority_xon_2_xoff[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 943 i, stats->priority_xon_2_xoff[i], 944 i+1, stats->priority_xon_2_xoff[i+1], 945 i+2, stats->priority_xon_2_xoff[i+2], 946 i+3, stats->priority_xon_2_xoff[i+3]); 947 } 948 949 i40e_dbg_dump_eth_stats(pf, &stats->eth); 950 } 951 952 /** 953 * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb 954 * @pf: the i40e_pf created in command write 955 * @seid: the seid the user put in 956 **/ 957 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid) 958 { 959 struct i40e_veb *veb; 960 961 if ((seid < I40E_BASE_VEB_SEID) || 962 (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) { 963 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid); 964 return; 965 } 966 967 veb = i40e_dbg_find_veb(pf, seid); 968 if (!veb) { 969 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid); 970 return; 971 } 972 dev_info(&pf->pdev->dev, 973 "veb idx=%d,%d stats_ic=%d seid=%d uplink=%d\n", 974 veb->idx, veb->veb_idx, veb->stats_idx, veb->seid, 975 veb->uplink_seid); 976 i40e_dbg_dump_eth_stats(pf, &veb->stats); 977 } 978 979 /** 980 * i40e_dbg_dump_veb_all - dumps all known veb's stats 981 * @pf: the i40e_pf created in command write 982 **/ 983 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf) 984 { 985 struct i40e_veb *veb; 986 int i; 987 988 for (i = 0; i < I40E_MAX_VEB; i++) { 989 veb = pf->veb[i]; 990 if (veb) 991 i40e_dbg_dump_veb_seid(pf, veb->seid); 992 } 993 } 994 995 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4) 996 /** 997 * i40e_dbg_command_write - write into command datum 998 * @filp: the opened file 999 * @buffer: where to find the user's data 1000 * @count: the length of the user's data 1001 * @ppos: file position offset 1002 **/ 1003 static ssize_t i40e_dbg_command_write(struct file *filp, 1004 const char __user *buffer, 1005 size_t count, loff_t *ppos) 1006 { 1007 struct i40e_pf *pf = filp->private_data; 1008 char *cmd_buf, *cmd_buf_tmp; 1009 int bytes_not_copied; 1010 struct i40e_vsi *vsi; 1011 int vsi_seid; 1012 int veb_seid; 1013 int cnt; 1014 1015 /* don't allow partial writes */ 1016 if (*ppos != 0) 1017 return 0; 1018 1019 cmd_buf = kzalloc(count + 1, GFP_KERNEL); 1020 if (!cmd_buf) 1021 return count; 1022 bytes_not_copied = copy_from_user(cmd_buf, buffer, count); 1023 if (bytes_not_copied < 0) 1024 return bytes_not_copied; 1025 if (bytes_not_copied > 0) 1026 count -= bytes_not_copied; 1027 cmd_buf[count] = '\0'; 1028 1029 cmd_buf_tmp = strchr(cmd_buf, '\n'); 1030 if (cmd_buf_tmp) { 1031 *cmd_buf_tmp = '\0'; 1032 count = cmd_buf_tmp - cmd_buf + 1; 1033 } 1034 1035 if (strncmp(cmd_buf, "add vsi", 7) == 0) { 1036 vsi_seid = -1; 1037 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid); 1038 if (cnt == 0) { 1039 /* default to PF VSI */ 1040 vsi_seid = pf->vsi[pf->lan_vsi]->seid; 1041 } else if (vsi_seid < 0) { 1042 dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n", 1043 vsi_seid); 1044 goto command_write_done; 1045 } 1046 1047 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0); 1048 if (vsi) 1049 dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n", 1050 vsi->seid, vsi->uplink_seid); 1051 else 1052 dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf); 1053 1054 } else if (strncmp(cmd_buf, "del vsi", 7) == 0) { 1055 sscanf(&cmd_buf[7], "%i", &vsi_seid); 1056 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1057 if (!vsi) { 1058 dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n", 1059 vsi_seid); 1060 goto command_write_done; 1061 } 1062 1063 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid); 1064 i40e_vsi_release(vsi); 1065 1066 } else if (strncmp(cmd_buf, "add relay", 9) == 0) { 1067 struct i40e_veb *veb; 1068 int uplink_seid, i; 1069 1070 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid); 1071 if (cnt != 2) { 1072 dev_info(&pf->pdev->dev, 1073 "add relay: bad command string, cnt=%d\n", 1074 cnt); 1075 goto command_write_done; 1076 } else if (uplink_seid < 0) { 1077 dev_info(&pf->pdev->dev, 1078 "add relay %d: bad uplink seid\n", 1079 uplink_seid); 1080 goto command_write_done; 1081 } 1082 1083 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1084 if (!vsi) { 1085 dev_info(&pf->pdev->dev, 1086 "add relay: vsi VSI %d not found\n", vsi_seid); 1087 goto command_write_done; 1088 } 1089 1090 for (i = 0; i < I40E_MAX_VEB; i++) 1091 if (pf->veb[i] && pf->veb[i]->seid == uplink_seid) 1092 break; 1093 if (i >= I40E_MAX_VEB && uplink_seid != 0 && 1094 uplink_seid != pf->mac_seid) { 1095 dev_info(&pf->pdev->dev, 1096 "add relay: relay uplink %d not found\n", 1097 uplink_seid); 1098 goto command_write_done; 1099 } 1100 1101 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid, 1102 vsi->tc_config.enabled_tc); 1103 if (veb) 1104 dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid); 1105 else 1106 dev_info(&pf->pdev->dev, "add relay failed\n"); 1107 1108 } else if (strncmp(cmd_buf, "del relay", 9) == 0) { 1109 int i; 1110 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid); 1111 if (cnt != 1) { 1112 dev_info(&pf->pdev->dev, 1113 "del relay: bad command string, cnt=%d\n", 1114 cnt); 1115 goto command_write_done; 1116 } else if (veb_seid < 0) { 1117 dev_info(&pf->pdev->dev, 1118 "del relay %d: bad relay seid\n", veb_seid); 1119 goto command_write_done; 1120 } 1121 1122 /* find the veb */ 1123 for (i = 0; i < I40E_MAX_VEB; i++) 1124 if (pf->veb[i] && pf->veb[i]->seid == veb_seid) 1125 break; 1126 if (i >= I40E_MAX_VEB) { 1127 dev_info(&pf->pdev->dev, 1128 "del relay: relay %d not found\n", veb_seid); 1129 goto command_write_done; 1130 } 1131 1132 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid); 1133 i40e_veb_release(pf->veb[i]); 1134 1135 } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) { 1136 struct i40e_mac_filter *f; 1137 int vlan = 0; 1138 u8 ma[6]; 1139 int ret; 1140 1141 cnt = sscanf(&cmd_buf[11], 1142 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i", 1143 &vsi_seid, 1144 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5], 1145 &vlan); 1146 if (cnt == 7) { 1147 vlan = 0; 1148 } else if (cnt != 8) { 1149 dev_info(&pf->pdev->dev, 1150 "add macaddr: bad command string, cnt=%d\n", 1151 cnt); 1152 goto command_write_done; 1153 } 1154 1155 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1156 if (!vsi) { 1157 dev_info(&pf->pdev->dev, 1158 "add macaddr: VSI %d not found\n", vsi_seid); 1159 goto command_write_done; 1160 } 1161 1162 f = i40e_add_filter(vsi, ma, vlan, false, false); 1163 ret = i40e_sync_vsi_filters(vsi); 1164 if (f && !ret) 1165 dev_info(&pf->pdev->dev, 1166 "add macaddr: %pM vlan=%d added to VSI %d\n", 1167 ma, vlan, vsi_seid); 1168 else 1169 dev_info(&pf->pdev->dev, 1170 "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n", 1171 ma, vlan, vsi_seid, f, ret); 1172 1173 } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) { 1174 int vlan = 0; 1175 u8 ma[6]; 1176 int ret; 1177 1178 cnt = sscanf(&cmd_buf[11], 1179 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i", 1180 &vsi_seid, 1181 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5], 1182 &vlan); 1183 if (cnt == 7) { 1184 vlan = 0; 1185 } else if (cnt != 8) { 1186 dev_info(&pf->pdev->dev, 1187 "del macaddr: bad command string, cnt=%d\n", 1188 cnt); 1189 goto command_write_done; 1190 } 1191 1192 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1193 if (!vsi) { 1194 dev_info(&pf->pdev->dev, 1195 "del macaddr: VSI %d not found\n", vsi_seid); 1196 goto command_write_done; 1197 } 1198 1199 i40e_del_filter(vsi, ma, vlan, false, false); 1200 ret = i40e_sync_vsi_filters(vsi); 1201 if (!ret) 1202 dev_info(&pf->pdev->dev, 1203 "del macaddr: %pM vlan=%d removed from VSI %d\n", 1204 ma, vlan, vsi_seid); 1205 else 1206 dev_info(&pf->pdev->dev, 1207 "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n", 1208 ma, vlan, vsi_seid, ret); 1209 1210 } else if (strncmp(cmd_buf, "add pvid", 8) == 0) { 1211 i40e_status ret; 1212 u16 vid; 1213 int v; 1214 1215 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v); 1216 if (cnt != 2) { 1217 dev_info(&pf->pdev->dev, 1218 "add pvid: bad command string, cnt=%d\n", cnt); 1219 goto command_write_done; 1220 } 1221 1222 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1223 if (!vsi) { 1224 dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n", 1225 vsi_seid); 1226 goto command_write_done; 1227 } 1228 1229 vid = (unsigned)v; 1230 ret = i40e_vsi_add_pvid(vsi, vid); 1231 if (!ret) 1232 dev_info(&pf->pdev->dev, 1233 "add pvid: %d added to VSI %d\n", 1234 vid, vsi_seid); 1235 else 1236 dev_info(&pf->pdev->dev, 1237 "add pvid: %d to VSI %d failed, ret=%d\n", 1238 vid, vsi_seid, ret); 1239 1240 } else if (strncmp(cmd_buf, "del pvid", 8) == 0) { 1241 1242 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1243 if (cnt != 1) { 1244 dev_info(&pf->pdev->dev, 1245 "del pvid: bad command string, cnt=%d\n", 1246 cnt); 1247 goto command_write_done; 1248 } 1249 1250 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1251 if (!vsi) { 1252 dev_info(&pf->pdev->dev, 1253 "del pvid: VSI %d not found\n", vsi_seid); 1254 goto command_write_done; 1255 } 1256 1257 i40e_vsi_remove_pvid(vsi); 1258 dev_info(&pf->pdev->dev, 1259 "del pvid: removed from VSI %d\n", vsi_seid); 1260 1261 } else if (strncmp(cmd_buf, "dump", 4) == 0) { 1262 if (strncmp(&cmd_buf[5], "switch", 6) == 0) { 1263 i40e_fetch_switch_configuration(pf, true); 1264 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) { 1265 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1266 if (cnt > 0) 1267 i40e_dbg_dump_vsi_seid(pf, vsi_seid); 1268 else 1269 i40e_dbg_dump_vsi_no_seid(pf); 1270 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) { 1271 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1272 if (cnt > 0) 1273 i40e_dbg_dump_veb_seid(pf, vsi_seid); 1274 else 1275 i40e_dbg_dump_veb_all(pf); 1276 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) { 1277 int ring_id, desc_n; 1278 if (strncmp(&cmd_buf[10], "rx", 2) == 0) { 1279 cnt = sscanf(&cmd_buf[12], "%i %i %i", 1280 &vsi_seid, &ring_id, &desc_n); 1281 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id, 1282 desc_n, pf, true); 1283 } else if (strncmp(&cmd_buf[10], "tx", 2) 1284 == 0) { 1285 cnt = sscanf(&cmd_buf[12], "%i %i %i", 1286 &vsi_seid, &ring_id, &desc_n); 1287 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id, 1288 desc_n, pf, false); 1289 } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) { 1290 i40e_dbg_dump_aq_desc(pf); 1291 } else { 1292 dev_info(&pf->pdev->dev, 1293 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n"); 1294 dev_info(&pf->pdev->dev, 1295 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n"); 1296 dev_info(&pf->pdev->dev, "dump desc aq\n"); 1297 } 1298 } else if (strncmp(&cmd_buf[5], "stats", 5) == 0) { 1299 dev_info(&pf->pdev->dev, "pf stats:\n"); 1300 i40e_dbg_dump_stats(pf, &pf->stats); 1301 dev_info(&pf->pdev->dev, "pf stats_offsets:\n"); 1302 i40e_dbg_dump_stats(pf, &pf->stats_offsets); 1303 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) { 1304 dev_info(&pf->pdev->dev, 1305 "core reset count: %d\n", pf->corer_count); 1306 dev_info(&pf->pdev->dev, 1307 "global reset count: %d\n", pf->globr_count); 1308 dev_info(&pf->pdev->dev, 1309 "emp reset count: %d\n", pf->empr_count); 1310 dev_info(&pf->pdev->dev, 1311 "pf reset count: %d\n", pf->pfr_count); 1312 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) { 1313 struct i40e_aqc_query_port_ets_config_resp *bw_data; 1314 struct i40e_dcbx_config *cfg = 1315 &pf->hw.local_dcbx_config; 1316 struct i40e_dcbx_config *r_cfg = 1317 &pf->hw.remote_dcbx_config; 1318 int i, ret; 1319 1320 bw_data = kzalloc(sizeof( 1321 struct i40e_aqc_query_port_ets_config_resp), 1322 GFP_KERNEL); 1323 if (!bw_data) { 1324 ret = -ENOMEM; 1325 goto command_write_done; 1326 } 1327 1328 ret = i40e_aq_query_port_ets_config(&pf->hw, 1329 pf->mac_seid, 1330 bw_data, NULL); 1331 if (ret) { 1332 dev_info(&pf->pdev->dev, 1333 "Query Port ETS Config AQ command failed =0x%x\n", 1334 pf->hw.aq.asq_last_status); 1335 kfree(bw_data); 1336 bw_data = NULL; 1337 goto command_write_done; 1338 } 1339 dev_info(&pf->pdev->dev, 1340 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n", 1341 bw_data->tc_valid_bits, 1342 bw_data->tc_strict_priority_bits, 1343 le16_to_cpu(bw_data->tc_bw_max[0]), 1344 le16_to_cpu(bw_data->tc_bw_max[1])); 1345 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1346 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n", 1347 bw_data->tc_bw_share_credits[i], 1348 le16_to_cpu(bw_data->tc_bw_limits[i])); 1349 } 1350 1351 kfree(bw_data); 1352 bw_data = NULL; 1353 1354 dev_info(&pf->pdev->dev, 1355 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n", 1356 cfg->etscfg.willing, cfg->etscfg.cbs, 1357 cfg->etscfg.maxtcs); 1358 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1359 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1360 i, cfg->etscfg.prioritytable[i], 1361 cfg->etscfg.tcbwtable[i], 1362 cfg->etscfg.tsatable[i]); 1363 } 1364 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1365 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1366 i, cfg->etsrec.prioritytable[i], 1367 cfg->etsrec.tcbwtable[i], 1368 cfg->etsrec.tsatable[i]); 1369 } 1370 dev_info(&pf->pdev->dev, 1371 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n", 1372 cfg->pfc.willing, cfg->pfc.mbc, 1373 cfg->pfc.pfccap, cfg->pfc.pfcenable); 1374 dev_info(&pf->pdev->dev, 1375 "port app_table: num_apps=%d\n", cfg->numapps); 1376 for (i = 0; i < cfg->numapps; i++) { 1377 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n", 1378 i, cfg->app[i].priority, 1379 cfg->app[i].selector, 1380 cfg->app[i].protocolid); 1381 } 1382 /* Peer TLV DCBX data */ 1383 dev_info(&pf->pdev->dev, 1384 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n", 1385 r_cfg->etscfg.willing, 1386 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs); 1387 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1388 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1389 i, r_cfg->etscfg.prioritytable[i], 1390 r_cfg->etscfg.tcbwtable[i], 1391 r_cfg->etscfg.tsatable[i]); 1392 } 1393 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1394 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1395 i, r_cfg->etsrec.prioritytable[i], 1396 r_cfg->etsrec.tcbwtable[i], 1397 r_cfg->etsrec.tsatable[i]); 1398 } 1399 dev_info(&pf->pdev->dev, 1400 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n", 1401 r_cfg->pfc.willing, 1402 r_cfg->pfc.mbc, 1403 r_cfg->pfc.pfccap, 1404 r_cfg->pfc.pfcenable); 1405 dev_info(&pf->pdev->dev, 1406 "remote port app_table: num_apps=%d\n", 1407 r_cfg->numapps); 1408 for (i = 0; i < r_cfg->numapps; i++) { 1409 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n", 1410 i, r_cfg->app[i].priority, 1411 r_cfg->app[i].selector, 1412 r_cfg->app[i].protocolid); 1413 } 1414 } else { 1415 dev_info(&pf->pdev->dev, 1416 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n"); 1417 dev_info(&pf->pdev->dev, "dump switch, dump vsi [seid] or\n"); 1418 dev_info(&pf->pdev->dev, "dump stats\n"); 1419 dev_info(&pf->pdev->dev, "dump reset stats\n"); 1420 dev_info(&pf->pdev->dev, "dump port\n"); 1421 dev_info(&pf->pdev->dev, 1422 "dump debug fwdata <cluster_id> <table_id> <index>\n"); 1423 } 1424 1425 } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) { 1426 u32 level; 1427 cnt = sscanf(&cmd_buf[10], "%i", &level); 1428 if (cnt) { 1429 if (I40E_DEBUG_USER & level) { 1430 pf->hw.debug_mask = level; 1431 dev_info(&pf->pdev->dev, 1432 "set hw.debug_mask = 0x%08x\n", 1433 pf->hw.debug_mask); 1434 } 1435 pf->msg_enable = level; 1436 dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n", 1437 pf->msg_enable); 1438 } else { 1439 dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n", 1440 pf->msg_enable); 1441 } 1442 } else if (strncmp(cmd_buf, "pfr", 3) == 0) { 1443 dev_info(&pf->pdev->dev, "forcing PFR\n"); 1444 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED)); 1445 1446 } else if (strncmp(cmd_buf, "corer", 5) == 0) { 1447 dev_info(&pf->pdev->dev, "forcing CoreR\n"); 1448 i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED)); 1449 1450 } else if (strncmp(cmd_buf, "globr", 5) == 0) { 1451 dev_info(&pf->pdev->dev, "forcing GlobR\n"); 1452 i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED)); 1453 1454 } else if (strncmp(cmd_buf, "empr", 4) == 0) { 1455 dev_info(&pf->pdev->dev, "forcing EMPR\n"); 1456 i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED)); 1457 1458 } else if (strncmp(cmd_buf, "read", 4) == 0) { 1459 u32 address; 1460 u32 value; 1461 cnt = sscanf(&cmd_buf[4], "%i", &address); 1462 if (cnt != 1) { 1463 dev_info(&pf->pdev->dev, "read <reg>\n"); 1464 goto command_write_done; 1465 } 1466 1467 /* check the range on address */ 1468 if (address >= I40E_MAX_REGISTER) { 1469 dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n", 1470 address); 1471 goto command_write_done; 1472 } 1473 1474 value = rd32(&pf->hw, address); 1475 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n", 1476 address, value); 1477 1478 } else if (strncmp(cmd_buf, "write", 5) == 0) { 1479 u32 address, value; 1480 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value); 1481 if (cnt != 2) { 1482 dev_info(&pf->pdev->dev, "write <reg> <value>\n"); 1483 goto command_write_done; 1484 } 1485 1486 /* check the range on address */ 1487 if (address >= I40E_MAX_REGISTER) { 1488 dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n", 1489 address); 1490 goto command_write_done; 1491 } 1492 wr32(&pf->hw, address, value); 1493 value = rd32(&pf->hw, address); 1494 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n", 1495 address, value); 1496 } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) { 1497 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) { 1498 cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid); 1499 if (cnt == 0) { 1500 int i; 1501 for (i = 0; i < pf->hw.func_caps.num_vsis; i++) 1502 i40e_vsi_reset_stats(pf->vsi[i]); 1503 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n"); 1504 } else if (cnt == 1) { 1505 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1506 if (!vsi) { 1507 dev_info(&pf->pdev->dev, 1508 "clear_stats vsi: bad vsi %d\n", 1509 vsi_seid); 1510 goto command_write_done; 1511 } 1512 i40e_vsi_reset_stats(vsi); 1513 dev_info(&pf->pdev->dev, 1514 "vsi clear stats called for vsi %d\n", 1515 vsi_seid); 1516 } else { 1517 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n"); 1518 } 1519 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) { 1520 i40e_pf_reset_stats(pf); 1521 dev_info(&pf->pdev->dev, "pf clear stats called\n"); 1522 } else { 1523 dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n"); 1524 } 1525 } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) || 1526 (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) { 1527 struct i40e_fdir_data fd_data; 1528 u16 packet_len, i, j = 0; 1529 char *asc_packet; 1530 bool add = false; 1531 int ret; 1532 1533 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP, 1534 GFP_KERNEL); 1535 if (!asc_packet) 1536 goto command_write_done; 1537 1538 fd_data.raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP, 1539 GFP_KERNEL); 1540 1541 if (!fd_data.raw_packet) { 1542 kfree(asc_packet); 1543 asc_packet = NULL; 1544 goto command_write_done; 1545 } 1546 1547 if (strncmp(cmd_buf, "add", 3) == 0) 1548 add = true; 1549 cnt = sscanf(&cmd_buf[13], 1550 "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s", 1551 &fd_data.q_index, 1552 &fd_data.flex_off, &fd_data.pctype, 1553 &fd_data.dest_vsi, &fd_data.dest_ctl, 1554 &fd_data.fd_status, &fd_data.cnt_index, 1555 &fd_data.fd_id, &packet_len, asc_packet); 1556 if (cnt != 10) { 1557 dev_info(&pf->pdev->dev, 1558 "program fd_filter: bad command string, cnt=%d\n", 1559 cnt); 1560 kfree(asc_packet); 1561 asc_packet = NULL; 1562 kfree(fd_data.raw_packet); 1563 goto command_write_done; 1564 } 1565 1566 /* fix packet length if user entered 0 */ 1567 if (packet_len == 0) 1568 packet_len = I40E_FDIR_MAX_RAW_PACKET_LOOKUP; 1569 1570 /* make sure to check the max as well */ 1571 packet_len = min_t(u16, 1572 packet_len, I40E_FDIR_MAX_RAW_PACKET_LOOKUP); 1573 1574 for (i = 0; i < packet_len; i++) { 1575 sscanf(&asc_packet[j], "%2hhx ", 1576 &fd_data.raw_packet[i]); 1577 j += 3; 1578 } 1579 dev_info(&pf->pdev->dev, "FD raw packet dump\n"); 1580 print_hex_dump(KERN_INFO, "FD raw packet: ", 1581 DUMP_PREFIX_OFFSET, 16, 1, 1582 fd_data.raw_packet, packet_len, true); 1583 ret = i40e_program_fdir_filter(&fd_data, pf, add); 1584 if (!ret) { 1585 dev_info(&pf->pdev->dev, "Filter command send Status : Success\n"); 1586 } else { 1587 dev_info(&pf->pdev->dev, 1588 "Filter command send failed %d\n", ret); 1589 } 1590 kfree(fd_data.raw_packet); 1591 fd_data.raw_packet = NULL; 1592 kfree(asc_packet); 1593 asc_packet = NULL; 1594 } else if (strncmp(cmd_buf, "lldp", 4) == 0) { 1595 if (strncmp(&cmd_buf[5], "stop", 4) == 0) { 1596 int ret; 1597 ret = i40e_aq_stop_lldp(&pf->hw, false, NULL); 1598 if (ret) { 1599 dev_info(&pf->pdev->dev, 1600 "Stop LLDP AQ command failed =0x%x\n", 1601 pf->hw.aq.asq_last_status); 1602 goto command_write_done; 1603 } 1604 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) { 1605 int ret; 1606 ret = i40e_aq_start_lldp(&pf->hw, NULL); 1607 if (ret) { 1608 dev_info(&pf->pdev->dev, 1609 "Start LLDP AQ command failed =0x%x\n", 1610 pf->hw.aq.asq_last_status); 1611 goto command_write_done; 1612 } 1613 } else if (strncmp(&cmd_buf[5], 1614 "get local", 9) == 0) { 1615 u16 llen, rlen; 1616 int ret; 1617 u8 *buff; 1618 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL); 1619 if (!buff) 1620 goto command_write_done; 1621 1622 ret = i40e_aq_get_lldp_mib(&pf->hw, 0, 1623 I40E_AQ_LLDP_MIB_LOCAL, 1624 buff, I40E_LLDPDU_SIZE, 1625 &llen, &rlen, NULL); 1626 if (ret) { 1627 dev_info(&pf->pdev->dev, 1628 "Get LLDP MIB (local) AQ command failed =0x%x\n", 1629 pf->hw.aq.asq_last_status); 1630 kfree(buff); 1631 buff = NULL; 1632 goto command_write_done; 1633 } 1634 dev_info(&pf->pdev->dev, "LLDP MIB (local)\n"); 1635 print_hex_dump(KERN_INFO, "LLDP MIB (local): ", 1636 DUMP_PREFIX_OFFSET, 16, 1, 1637 buff, I40E_LLDPDU_SIZE, true); 1638 kfree(buff); 1639 buff = NULL; 1640 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) { 1641 u16 llen, rlen; 1642 int ret; 1643 u8 *buff; 1644 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL); 1645 if (!buff) 1646 goto command_write_done; 1647 1648 ret = i40e_aq_get_lldp_mib(&pf->hw, 1649 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE, 1650 I40E_AQ_LLDP_MIB_LOCAL, 1651 buff, I40E_LLDPDU_SIZE, 1652 &llen, &rlen, NULL); 1653 if (ret) { 1654 dev_info(&pf->pdev->dev, 1655 "Get LLDP MIB (remote) AQ command failed =0x%x\n", 1656 pf->hw.aq.asq_last_status); 1657 kfree(buff); 1658 buff = NULL; 1659 goto command_write_done; 1660 } 1661 dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n"); 1662 print_hex_dump(KERN_INFO, "LLDP MIB (remote): ", 1663 DUMP_PREFIX_OFFSET, 16, 1, 1664 buff, I40E_LLDPDU_SIZE, true); 1665 kfree(buff); 1666 buff = NULL; 1667 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) { 1668 int ret; 1669 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw, 1670 true, NULL); 1671 if (ret) { 1672 dev_info(&pf->pdev->dev, 1673 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n", 1674 pf->hw.aq.asq_last_status); 1675 goto command_write_done; 1676 } 1677 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) { 1678 int ret; 1679 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw, 1680 false, NULL); 1681 if (ret) { 1682 dev_info(&pf->pdev->dev, 1683 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n", 1684 pf->hw.aq.asq_last_status); 1685 goto command_write_done; 1686 } 1687 } 1688 } else if (strncmp(cmd_buf, "nvm read", 8) == 0) { 1689 u16 buffer_len, bytes; 1690 u16 module; 1691 u32 offset; 1692 u16 *buff; 1693 int ret; 1694 1695 cnt = sscanf(&cmd_buf[8], "%hx %x %hx", 1696 &module, &offset, &buffer_len); 1697 if (cnt == 0) { 1698 module = 0; 1699 offset = 0; 1700 buffer_len = 0; 1701 } else if (cnt == 1) { 1702 offset = 0; 1703 buffer_len = 0; 1704 } else if (cnt == 2) { 1705 buffer_len = 0; 1706 } else if (cnt > 3) { 1707 dev_info(&pf->pdev->dev, 1708 "nvm read: bad command string, cnt=%d\n", cnt); 1709 goto command_write_done; 1710 } 1711 1712 /* set the max length */ 1713 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2); 1714 1715 bytes = 2 * buffer_len; 1716 1717 /* read at least 1k bytes, no more than 4kB */ 1718 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE); 1719 buff = kzalloc(bytes, GFP_KERNEL); 1720 if (!buff) 1721 goto command_write_done; 1722 1723 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ); 1724 if (ret) { 1725 dev_info(&pf->pdev->dev, 1726 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1727 ret, pf->hw.aq.asq_last_status); 1728 kfree(buff); 1729 goto command_write_done; 1730 } 1731 1732 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset), 1733 bytes, (u8 *)buff, true, NULL); 1734 i40e_release_nvm(&pf->hw); 1735 if (ret) { 1736 dev_info(&pf->pdev->dev, 1737 "Read NVM AQ failed err=%d status=0x%x\n", 1738 ret, pf->hw.aq.asq_last_status); 1739 } else { 1740 dev_info(&pf->pdev->dev, 1741 "Read NVM module=0x%x offset=0x%x words=%d\n", 1742 module, offset, buffer_len); 1743 if (buffer_len) 1744 print_hex_dump(KERN_INFO, "NVM Dump: ", 1745 DUMP_PREFIX_OFFSET, 16, 2, 1746 buff, buffer_len, true); 1747 } 1748 kfree(buff); 1749 buff = NULL; 1750 } else { 1751 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf); 1752 dev_info(&pf->pdev->dev, "available commands\n"); 1753 dev_info(&pf->pdev->dev, " add vsi [relay_seid]\n"); 1754 dev_info(&pf->pdev->dev, " del vsi [vsi_seid]\n"); 1755 dev_info(&pf->pdev->dev, " add relay <uplink_seid> <vsi_seid>\n"); 1756 dev_info(&pf->pdev->dev, " del relay <relay_seid>\n"); 1757 dev_info(&pf->pdev->dev, " add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n"); 1758 dev_info(&pf->pdev->dev, " del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n"); 1759 dev_info(&pf->pdev->dev, " add pvid <vsi_seid> <vid>\n"); 1760 dev_info(&pf->pdev->dev, " del pvid <vsi_seid>\n"); 1761 dev_info(&pf->pdev->dev, " dump switch\n"); 1762 dev_info(&pf->pdev->dev, " dump vsi [seid]\n"); 1763 dev_info(&pf->pdev->dev, " dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n"); 1764 dev_info(&pf->pdev->dev, " dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n"); 1765 dev_info(&pf->pdev->dev, " dump desc aq\n"); 1766 dev_info(&pf->pdev->dev, " dump stats\n"); 1767 dev_info(&pf->pdev->dev, " dump reset stats\n"); 1768 dev_info(&pf->pdev->dev, " msg_enable [level]\n"); 1769 dev_info(&pf->pdev->dev, " read <reg>\n"); 1770 dev_info(&pf->pdev->dev, " write <reg> <value>\n"); 1771 dev_info(&pf->pdev->dev, " clear_stats vsi [seid]\n"); 1772 dev_info(&pf->pdev->dev, " clear_stats pf\n"); 1773 dev_info(&pf->pdev->dev, " pfr\n"); 1774 dev_info(&pf->pdev->dev, " corer\n"); 1775 dev_info(&pf->pdev->dev, " globr\n"); 1776 dev_info(&pf->pdev->dev, " add fd_filter <dest q_index> <flex_off> <pctype> <dest_vsi> <dest_ctl> <fd_status> <cnt_index> <fd_id> <packet_len> <packet>\n"); 1777 dev_info(&pf->pdev->dev, " rem fd_filter <dest q_index> <flex_off> <pctype> <dest_vsi> <dest_ctl> <fd_status> <cnt_index> <fd_id> <packet_len> <packet>\n"); 1778 dev_info(&pf->pdev->dev, " lldp start\n"); 1779 dev_info(&pf->pdev->dev, " lldp stop\n"); 1780 dev_info(&pf->pdev->dev, " lldp get local\n"); 1781 dev_info(&pf->pdev->dev, " lldp get remote\n"); 1782 dev_info(&pf->pdev->dev, " lldp event on\n"); 1783 dev_info(&pf->pdev->dev, " lldp event off\n"); 1784 dev_info(&pf->pdev->dev, " nvm read [module] [word_offset] [word_count]\n"); 1785 } 1786 1787 command_write_done: 1788 kfree(cmd_buf); 1789 cmd_buf = NULL; 1790 return count; 1791 } 1792 1793 static const struct file_operations i40e_dbg_command_fops = { 1794 .owner = THIS_MODULE, 1795 .open = simple_open, 1796 .read = i40e_dbg_command_read, 1797 .write = i40e_dbg_command_write, 1798 }; 1799 1800 /************************************************************** 1801 * netdev_ops 1802 * The netdev_ops entry in debugfs is for giving the driver commands 1803 * to be executed from the netdev operations. 1804 **************************************************************/ 1805 static char i40e_dbg_netdev_ops_buf[256] = "hello world"; 1806 1807 /** 1808 * i40e_dbg_netdev_ops - read for netdev_ops datum 1809 * @filp: the opened file 1810 * @buffer: where to write the data for the user to read 1811 * @count: the size of the user's buffer 1812 * @ppos: file position offset 1813 **/ 1814 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer, 1815 size_t count, loff_t *ppos) 1816 { 1817 struct i40e_pf *pf = filp->private_data; 1818 int bytes_not_copied; 1819 int buf_size = 256; 1820 char *buf; 1821 int len; 1822 1823 /* don't allow partal reads */ 1824 if (*ppos != 0) 1825 return 0; 1826 if (count < buf_size) 1827 return -ENOSPC; 1828 1829 buf = kzalloc(buf_size, GFP_KERNEL); 1830 if (!buf) 1831 return -ENOSPC; 1832 1833 len = snprintf(buf, buf_size, "%s: %s\n", 1834 pf->vsi[pf->lan_vsi]->netdev->name, 1835 i40e_dbg_netdev_ops_buf); 1836 1837 bytes_not_copied = copy_to_user(buffer, buf, len); 1838 kfree(buf); 1839 1840 if (bytes_not_copied < 0) 1841 return bytes_not_copied; 1842 1843 *ppos = len; 1844 return len; 1845 } 1846 1847 /** 1848 * i40e_dbg_netdev_ops_write - write into netdev_ops datum 1849 * @filp: the opened file 1850 * @buffer: where to find the user's data 1851 * @count: the length of the user's data 1852 * @ppos: file position offset 1853 **/ 1854 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp, 1855 const char __user *buffer, 1856 size_t count, loff_t *ppos) 1857 { 1858 struct i40e_pf *pf = filp->private_data; 1859 int bytes_not_copied; 1860 struct i40e_vsi *vsi; 1861 char *buf_tmp; 1862 int vsi_seid; 1863 int i, cnt; 1864 1865 /* don't allow partial writes */ 1866 if (*ppos != 0) 1867 return 0; 1868 if (count >= sizeof(i40e_dbg_netdev_ops_buf)) 1869 return -ENOSPC; 1870 1871 memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf)); 1872 bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf, 1873 buffer, count); 1874 if (bytes_not_copied < 0) 1875 return bytes_not_copied; 1876 else if (bytes_not_copied > 0) 1877 count -= bytes_not_copied; 1878 i40e_dbg_netdev_ops_buf[count] = '\0'; 1879 1880 buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n'); 1881 if (buf_tmp) { 1882 *buf_tmp = '\0'; 1883 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1; 1884 } 1885 1886 if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) { 1887 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid); 1888 if (cnt != 1) { 1889 dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n"); 1890 goto netdev_ops_write_done; 1891 } 1892 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1893 if (!vsi) { 1894 dev_info(&pf->pdev->dev, 1895 "tx_timeout: VSI %d not found\n", vsi_seid); 1896 goto netdev_ops_write_done; 1897 } 1898 if (rtnl_trylock()) { 1899 vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev); 1900 rtnl_unlock(); 1901 dev_info(&pf->pdev->dev, "tx_timeout called\n"); 1902 } else { 1903 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 1904 } 1905 } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) { 1906 int mtu; 1907 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i", 1908 &vsi_seid, &mtu); 1909 if (cnt != 2) { 1910 dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n"); 1911 goto netdev_ops_write_done; 1912 } 1913 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1914 if (!vsi) { 1915 dev_info(&pf->pdev->dev, 1916 "change_mtu: VSI %d not found\n", vsi_seid); 1917 goto netdev_ops_write_done; 1918 } 1919 if (rtnl_trylock()) { 1920 vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev, 1921 mtu); 1922 rtnl_unlock(); 1923 dev_info(&pf->pdev->dev, "change_mtu called\n"); 1924 } else { 1925 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 1926 } 1927 1928 } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) { 1929 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid); 1930 if (cnt != 1) { 1931 dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n"); 1932 goto netdev_ops_write_done; 1933 } 1934 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1935 if (!vsi) { 1936 dev_info(&pf->pdev->dev, 1937 "set_rx_mode: VSI %d not found\n", vsi_seid); 1938 goto netdev_ops_write_done; 1939 } 1940 if (rtnl_trylock()) { 1941 vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev); 1942 rtnl_unlock(); 1943 dev_info(&pf->pdev->dev, "set_rx_mode called\n"); 1944 } else { 1945 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 1946 } 1947 1948 } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) { 1949 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid); 1950 if (cnt != 1) { 1951 dev_info(&pf->pdev->dev, "napi <vsi_seid>\n"); 1952 goto netdev_ops_write_done; 1953 } 1954 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1955 if (!vsi) { 1956 dev_info(&pf->pdev->dev, "napi: VSI %d not found\n", 1957 vsi_seid); 1958 goto netdev_ops_write_done; 1959 } 1960 for (i = 0; i < vsi->num_q_vectors; i++) 1961 napi_schedule(&vsi->q_vectors[i]->napi); 1962 dev_info(&pf->pdev->dev, "napi called\n"); 1963 } else { 1964 dev_info(&pf->pdev->dev, "unknown command '%s'\n", 1965 i40e_dbg_netdev_ops_buf); 1966 dev_info(&pf->pdev->dev, "available commands\n"); 1967 dev_info(&pf->pdev->dev, " tx_timeout <vsi_seid>\n"); 1968 dev_info(&pf->pdev->dev, " change_mtu <vsi_seid> <mtu>\n"); 1969 dev_info(&pf->pdev->dev, " set_rx_mode <vsi_seid>\n"); 1970 dev_info(&pf->pdev->dev, " napi <vsi_seid>\n"); 1971 } 1972 netdev_ops_write_done: 1973 return count; 1974 } 1975 1976 static const struct file_operations i40e_dbg_netdev_ops_fops = { 1977 .owner = THIS_MODULE, 1978 .open = simple_open, 1979 .read = i40e_dbg_netdev_ops_read, 1980 .write = i40e_dbg_netdev_ops_write, 1981 }; 1982 1983 /** 1984 * i40e_dbg_pf_init - setup the debugfs directory for the pf 1985 * @pf: the pf that is starting up 1986 **/ 1987 void i40e_dbg_pf_init(struct i40e_pf *pf) 1988 { 1989 struct dentry *pfile; 1990 const char *name = pci_name(pf->pdev); 1991 const struct device *dev = &pf->pdev->dev; 1992 1993 pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root); 1994 if (!pf->i40e_dbg_pf) 1995 return; 1996 1997 pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf, 1998 &i40e_dbg_command_fops); 1999 if (!pfile) 2000 goto create_failed; 2001 2002 pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf, 2003 &i40e_dbg_dump_fops); 2004 if (!pfile) 2005 goto create_failed; 2006 2007 pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf, 2008 &i40e_dbg_netdev_ops_fops); 2009 if (!pfile) 2010 goto create_failed; 2011 2012 return; 2013 2014 create_failed: 2015 dev_info(dev, "debugfs dir/file for %s failed\n", name); 2016 debugfs_remove_recursive(pf->i40e_dbg_pf); 2017 return; 2018 } 2019 2020 /** 2021 * i40e_dbg_pf_exit - clear out the pf's debugfs entries 2022 * @pf: the pf that is stopping 2023 **/ 2024 void i40e_dbg_pf_exit(struct i40e_pf *pf) 2025 { 2026 debugfs_remove_recursive(pf->i40e_dbg_pf); 2027 pf->i40e_dbg_pf = NULL; 2028 2029 kfree(i40e_dbg_dump_buf); 2030 i40e_dbg_dump_buf = NULL; 2031 } 2032 2033 /** 2034 * i40e_dbg_init - start up debugfs for the driver 2035 **/ 2036 void i40e_dbg_init(void) 2037 { 2038 i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL); 2039 if (!i40e_dbg_root) 2040 pr_info("init of debugfs failed\n"); 2041 } 2042 2043 /** 2044 * i40e_dbg_exit - clean out the driver's debugfs entries 2045 **/ 2046 void i40e_dbg_exit(void) 2047 { 2048 debugfs_remove_recursive(i40e_dbg_root); 2049 i40e_dbg_root = NULL; 2050 } 2051 2052 #endif /* CONFIG_DEBUG_FS */ 2053