1/******************************************************************************* 2 * 3 * Intel Ethernet Controller XL710 Family Linux Driver 4 * Copyright(c) 2013 - 2014 Intel Corporation. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 * 15 * You should have received a copy of the GNU General Public License along 16 * with this program. If not, see <http://www.gnu.org/licenses/>. 17 * 18 * The full GNU General Public License is included in this distribution in 19 * the file called "COPYING". 20 * 21 * Contact Information: 22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> 23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 24 * 25 ******************************************************************************/ 26 27#ifdef CONFIG_DEBUG_FS 28 29#include <linux/fs.h> 30#include <linux/debugfs.h> 31 32#include "i40e.h" 33 34static struct dentry *i40e_dbg_root; 35 36/** 37 * i40e_dbg_find_vsi - searches for the vsi with the given seid 38 * @pf - the pf structure to search for the vsi 39 * @seid - seid of the vsi it is searching for 40 **/ 41static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid) 42{ 43 int i; 44 45 if (seid < 0) 46 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid); 47 else 48 for (i = 0; i < pf->num_alloc_vsi; i++) 49 if (pf->vsi[i] && (pf->vsi[i]->seid == seid)) 50 return pf->vsi[i]; 51 52 return NULL; 53} 54 55/** 56 * i40e_dbg_find_veb - searches for the veb with the given seid 57 * @pf - the pf structure to search for the veb 58 * @seid - seid of the veb it is searching for 59 **/ 60static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid) 61{ 62 int i; 63 64 if ((seid < I40E_BASE_VEB_SEID) || 65 (seid > (I40E_BASE_VEB_SEID + I40E_MAX_VEB))) 66 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid); 67 else 68 for (i = 0; i < I40E_MAX_VEB; i++) 69 if (pf->veb[i] && pf->veb[i]->seid == seid) 70 return pf->veb[i]; 71 return NULL; 72} 73 74/************************************************************** 75 * dump 76 * The dump entry in debugfs is for getting a data snapshow of 77 * the driver's current configuration and runtime details. 78 * When the filesystem entry is written, a snapshot is taken. 79 * When the entry is read, the most recent snapshot data is dumped. 80 **************************************************************/ 81static char *i40e_dbg_dump_buf; 82static ssize_t i40e_dbg_dump_data_len; 83static ssize_t i40e_dbg_dump_buffer_len; 84 85/** 86 * i40e_dbg_dump_read - read the dump data 87 * @filp: the opened file 88 * @buffer: where to write the data for the user to read 89 * @count: the size of the user's buffer 90 * @ppos: file position offset 91 **/ 92static ssize_t i40e_dbg_dump_read(struct file *filp, char __user *buffer, 93 size_t count, loff_t *ppos) 94{ 95 int bytes_not_copied; 96 int len; 97 98 /* is *ppos bigger than the available data? */ 99 if (*ppos >= i40e_dbg_dump_data_len || !i40e_dbg_dump_buf) 100 return 0; 101 102 /* be sure to not read beyond the end of available data */ 103 len = min_t(int, count, (i40e_dbg_dump_data_len - *ppos)); 104 105 bytes_not_copied = copy_to_user(buffer, &i40e_dbg_dump_buf[*ppos], len); 106 if (bytes_not_copied < 0) 107 return bytes_not_copied; 108 109 *ppos += len; 110 return len; 111} 112 113/** 114 * i40e_dbg_prep_dump_buf 115 * @pf: the pf we're working with 116 * @buflen: the desired buffer length 117 * 118 * Return positive if success, 0 if failed 119 **/ 120static int i40e_dbg_prep_dump_buf(struct i40e_pf *pf, int buflen) 121{ 122 /* if not already big enough, prep for re alloc */ 123 if (i40e_dbg_dump_buffer_len && i40e_dbg_dump_buffer_len < buflen) { 124 kfree(i40e_dbg_dump_buf); 125 i40e_dbg_dump_buffer_len = 0; 126 i40e_dbg_dump_buf = NULL; 127 } 128 129 /* get a new buffer if needed */ 130 if (!i40e_dbg_dump_buf) { 131 i40e_dbg_dump_buf = kzalloc(buflen, GFP_KERNEL); 132 if (i40e_dbg_dump_buf != NULL) 133 i40e_dbg_dump_buffer_len = buflen; 134 } 135 136 return i40e_dbg_dump_buffer_len; 137} 138 139/** 140 * i40e_dbg_dump_write - trigger a datadump snapshot 141 * @filp: the opened file 142 * @buffer: where to find the user's data 143 * @count: the length of the user's data 144 * @ppos: file position offset 145 * 146 * Any write clears the stats 147 **/ 148static ssize_t i40e_dbg_dump_write(struct file *filp, 149 const char __user *buffer, 150 size_t count, loff_t *ppos) 151{ 152 struct i40e_pf *pf = filp->private_data; 153 bool seid_found = false; 154 long seid = -1; 155 int buflen = 0; 156 int i, ret; 157 int len; 158 u8 *p; 159 160 /* don't allow partial writes */ 161 if (*ppos != 0) 162 return 0; 163 164 /* decode the SEID given to be dumped */ 165 ret = kstrtol_from_user(buffer, count, 0, &seid); 166 167 if (ret) { 168 dev_info(&pf->pdev->dev, "bad seid value\n"); 169 } else if (seid == 0) { 170 seid_found = true; 171 172 kfree(i40e_dbg_dump_buf); 173 i40e_dbg_dump_buffer_len = 0; 174 i40e_dbg_dump_data_len = 0; 175 i40e_dbg_dump_buf = NULL; 176 dev_info(&pf->pdev->dev, "debug buffer freed\n"); 177 178 } else if (seid == pf->pf_seid || seid == 1) { 179 seid_found = true; 180 181 buflen = sizeof(struct i40e_pf); 182 buflen += (sizeof(struct i40e_aq_desc) 183 * (pf->hw.aq.num_arq_entries + pf->hw.aq.num_asq_entries)); 184 185 if (i40e_dbg_prep_dump_buf(pf, buflen)) { 186 p = i40e_dbg_dump_buf; 187 188 len = sizeof(struct i40e_pf); 189 memcpy(p, pf, len); 190 p += len; 191 192 len = (sizeof(struct i40e_aq_desc) 193 * pf->hw.aq.num_asq_entries); 194 memcpy(p, pf->hw.aq.asq.desc_buf.va, len); 195 p += len; 196 197 len = (sizeof(struct i40e_aq_desc) 198 * pf->hw.aq.num_arq_entries); 199 memcpy(p, pf->hw.aq.arq.desc_buf.va, len); 200 p += len; 201 202 i40e_dbg_dump_data_len = buflen; 203 dev_info(&pf->pdev->dev, 204 "PF seid %ld dumped %d bytes\n", 205 seid, (int)i40e_dbg_dump_data_len); 206 } 207 } else if (seid >= I40E_BASE_VSI_SEID) { 208 struct i40e_vsi *vsi = NULL; 209 struct i40e_mac_filter *f; 210 int filter_count = 0; 211 212 mutex_lock(&pf->switch_mutex); 213 vsi = i40e_dbg_find_vsi(pf, seid); 214 if (!vsi) { 215 mutex_unlock(&pf->switch_mutex); 216 goto write_exit; 217 } 218 219 buflen = sizeof(struct i40e_vsi); 220 buflen += sizeof(struct i40e_q_vector) * vsi->num_q_vectors; 221 buflen += sizeof(struct i40e_ring) * 2 * vsi->num_queue_pairs; 222 buflen += sizeof(struct i40e_tx_buffer) * vsi->num_queue_pairs; 223 buflen += sizeof(struct i40e_rx_buffer) * vsi->num_queue_pairs; 224 list_for_each_entry(f, &vsi->mac_filter_list, list) 225 filter_count++; 226 buflen += sizeof(struct i40e_mac_filter) * filter_count; 227 228 if (i40e_dbg_prep_dump_buf(pf, buflen)) { 229 p = i40e_dbg_dump_buf; 230 seid_found = true; 231 232 len = sizeof(struct i40e_vsi); 233 memcpy(p, vsi, len); 234 p += len; 235 236 if (vsi->num_q_vectors) { 237 len = (sizeof(struct i40e_q_vector) 238 * vsi->num_q_vectors); 239 memcpy(p, vsi->q_vectors, len); 240 p += len; 241 } 242 243 if (vsi->num_queue_pairs) { 244 len = (sizeof(struct i40e_ring) * 245 vsi->num_queue_pairs); 246 memcpy(p, vsi->tx_rings, len); 247 p += len; 248 memcpy(p, vsi->rx_rings, len); 249 p += len; 250 } 251 252 if (vsi->tx_rings[0]) { 253 len = sizeof(struct i40e_tx_buffer); 254 for (i = 0; i < vsi->num_queue_pairs; i++) { 255 memcpy(p, vsi->tx_rings[i]->tx_bi, len); 256 p += len; 257 } 258 len = sizeof(struct i40e_rx_buffer); 259 for (i = 0; i < vsi->num_queue_pairs; i++) { 260 memcpy(p, vsi->rx_rings[i]->rx_bi, len); 261 p += len; 262 } 263 } 264 265 /* macvlan filter list */ 266 len = sizeof(struct i40e_mac_filter); 267 list_for_each_entry(f, &vsi->mac_filter_list, list) { 268 memcpy(p, f, len); 269 p += len; 270 } 271 272 i40e_dbg_dump_data_len = buflen; 273 dev_info(&pf->pdev->dev, 274 "VSI seid %ld dumped %d bytes\n", 275 seid, (int)i40e_dbg_dump_data_len); 276 } 277 mutex_unlock(&pf->switch_mutex); 278 } else if (seid >= I40E_BASE_VEB_SEID) { 279 struct i40e_veb *veb = NULL; 280 281 mutex_lock(&pf->switch_mutex); 282 veb = i40e_dbg_find_veb(pf, seid); 283 if (!veb) { 284 mutex_unlock(&pf->switch_mutex); 285 goto write_exit; 286 } 287 288 buflen = sizeof(struct i40e_veb); 289 if (i40e_dbg_prep_dump_buf(pf, buflen)) { 290 seid_found = true; 291 memcpy(i40e_dbg_dump_buf, veb, buflen); 292 i40e_dbg_dump_data_len = buflen; 293 dev_info(&pf->pdev->dev, 294 "VEB seid %ld dumped %d bytes\n", 295 seid, (int)i40e_dbg_dump_data_len); 296 } 297 mutex_unlock(&pf->switch_mutex); 298 } 299 300write_exit: 301 if (!seid_found) 302 dev_info(&pf->pdev->dev, "unknown seid %ld\n", seid); 303 304 return count; 305} 306 307static const struct file_operations i40e_dbg_dump_fops = { 308 .owner = THIS_MODULE, 309 .open = simple_open, 310 .read = i40e_dbg_dump_read, 311 .write = i40e_dbg_dump_write, 312}; 313 314/************************************************************** 315 * command 316 * The command entry in debugfs is for giving the driver commands 317 * to be executed - these may be for changing the internal switch 318 * setup, adding or removing filters, or other things. Many of 319 * these will be useful for some forms of unit testing. 320 **************************************************************/ 321static char i40e_dbg_command_buf[256] = "hello world"; 322 323/** 324 * i40e_dbg_command_read - read for command datum 325 * @filp: the opened file 326 * @buffer: where to write the data for the user to read 327 * @count: the size of the user's buffer 328 * @ppos: file position offset 329 **/ 330static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer, 331 size_t count, loff_t *ppos) 332{ 333 struct i40e_pf *pf = filp->private_data; 334 int bytes_not_copied; 335 int buf_size = 256; 336 char *buf; 337 int len; 338 339 /* don't allow partial reads */ 340 if (*ppos != 0) 341 return 0; 342 if (count < buf_size) 343 return -ENOSPC; 344 345 buf = kzalloc(buf_size, GFP_KERNEL); 346 if (!buf) 347 return -ENOSPC; 348 349 len = snprintf(buf, buf_size, "%s: %s\n", 350 pf->vsi[pf->lan_vsi]->netdev->name, 351 i40e_dbg_command_buf); 352 353 bytes_not_copied = copy_to_user(buffer, buf, len); 354 kfree(buf); 355 356 if (bytes_not_copied < 0) 357 return bytes_not_copied; 358 359 *ppos = len; 360 return len; 361} 362 363/** 364 * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum 365 * @pf: the i40e_pf created in command write 366 * @seid: the seid the user put in 367 **/ 368static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid) 369{ 370 struct rtnl_link_stats64 *nstat; 371 struct i40e_mac_filter *f; 372 struct i40e_vsi *vsi; 373 int i; 374 375 vsi = i40e_dbg_find_vsi(pf, seid); 376 if (!vsi) { 377 dev_info(&pf->pdev->dev, 378 "dump %d: seid not found\n", seid); 379 return; 380 } 381 dev_info(&pf->pdev->dev, "vsi seid %d\n", seid); 382 if (vsi->netdev) 383 dev_info(&pf->pdev->dev, 384 " netdev: name = %s\n", 385 vsi->netdev->name); 386 if (vsi->active_vlans) 387 dev_info(&pf->pdev->dev, 388 " vlgrp: & = %p\n", vsi->active_vlans); 389 dev_info(&pf->pdev->dev, 390 " netdev_registered = %i, current_netdev_flags = 0x%04x, state = %li flags = 0x%08lx\n", 391 vsi->netdev_registered, 392 vsi->current_netdev_flags, vsi->state, vsi->flags); 393 list_for_each_entry(f, &vsi->mac_filter_list, list) { 394 dev_info(&pf->pdev->dev, 395 " mac_filter_list: %pM vid=%d, is_netdev=%d is_vf=%d counter=%d\n", 396 f->macaddr, f->vlan, f->is_netdev, f->is_vf, 397 f->counter); 398 } 399 nstat = i40e_get_vsi_stats_struct(vsi); 400 dev_info(&pf->pdev->dev, 401 " net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n", 402 (long unsigned int)nstat->rx_packets, 403 (long unsigned int)nstat->rx_bytes, 404 (long unsigned int)nstat->rx_errors, 405 (long unsigned int)nstat->rx_dropped); 406 dev_info(&pf->pdev->dev, 407 " net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n", 408 (long unsigned int)nstat->tx_packets, 409 (long unsigned int)nstat->tx_bytes, 410 (long unsigned int)nstat->tx_errors, 411 (long unsigned int)nstat->tx_dropped); 412 dev_info(&pf->pdev->dev, 413 " net_stats: multicast = %lu, collisions = %lu\n", 414 (long unsigned int)nstat->multicast, 415 (long unsigned int)nstat->collisions); 416 dev_info(&pf->pdev->dev, 417 " net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n", 418 (long unsigned int)nstat->rx_length_errors, 419 (long unsigned int)nstat->rx_over_errors, 420 (long unsigned int)nstat->rx_crc_errors); 421 dev_info(&pf->pdev->dev, 422 " net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n", 423 (long unsigned int)nstat->rx_frame_errors, 424 (long unsigned int)nstat->rx_fifo_errors, 425 (long unsigned int)nstat->rx_missed_errors); 426 dev_info(&pf->pdev->dev, 427 " net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n", 428 (long unsigned int)nstat->tx_aborted_errors, 429 (long unsigned int)nstat->tx_carrier_errors, 430 (long unsigned int)nstat->tx_fifo_errors); 431 dev_info(&pf->pdev->dev, 432 " net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n", 433 (long unsigned int)nstat->tx_heartbeat_errors, 434 (long unsigned int)nstat->tx_window_errors); 435 dev_info(&pf->pdev->dev, 436 " net_stats: rx_compressed = %lu, tx_compressed = %lu\n", 437 (long unsigned int)nstat->rx_compressed, 438 (long unsigned int)nstat->tx_compressed); 439 dev_info(&pf->pdev->dev, 440 " net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n", 441 (long unsigned int)vsi->net_stats_offsets.rx_packets, 442 (long unsigned int)vsi->net_stats_offsets.rx_bytes, 443 (long unsigned int)vsi->net_stats_offsets.rx_errors, 444 (long unsigned int)vsi->net_stats_offsets.rx_dropped); 445 dev_info(&pf->pdev->dev, 446 " net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n", 447 (long unsigned int)vsi->net_stats_offsets.tx_packets, 448 (long unsigned int)vsi->net_stats_offsets.tx_bytes, 449 (long unsigned int)vsi->net_stats_offsets.tx_errors, 450 (long unsigned int)vsi->net_stats_offsets.tx_dropped); 451 dev_info(&pf->pdev->dev, 452 " net_stats_offsets: multicast = %lu, collisions = %lu\n", 453 (long unsigned int)vsi->net_stats_offsets.multicast, 454 (long unsigned int)vsi->net_stats_offsets.collisions); 455 dev_info(&pf->pdev->dev, 456 " net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n", 457 (long unsigned int)vsi->net_stats_offsets.rx_length_errors, 458 (long unsigned int)vsi->net_stats_offsets.rx_over_errors, 459 (long unsigned int)vsi->net_stats_offsets.rx_crc_errors); 460 dev_info(&pf->pdev->dev, 461 " net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n", 462 (long unsigned int)vsi->net_stats_offsets.rx_frame_errors, 463 (long unsigned int)vsi->net_stats_offsets.rx_fifo_errors, 464 (long unsigned int)vsi->net_stats_offsets.rx_missed_errors); 465 dev_info(&pf->pdev->dev, 466 " net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n", 467 (long unsigned int)vsi->net_stats_offsets.tx_aborted_errors, 468 (long unsigned int)vsi->net_stats_offsets.tx_carrier_errors, 469 (long unsigned int)vsi->net_stats_offsets.tx_fifo_errors); 470 dev_info(&pf->pdev->dev, 471 " net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n", 472 (long unsigned int)vsi->net_stats_offsets.tx_heartbeat_errors, 473 (long unsigned int)vsi->net_stats_offsets.tx_window_errors); 474 dev_info(&pf->pdev->dev, 475 " net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n", 476 (long unsigned int)vsi->net_stats_offsets.rx_compressed, 477 (long unsigned int)vsi->net_stats_offsets.tx_compressed); 478 dev_info(&pf->pdev->dev, 479 " tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n", 480 vsi->tx_restart, vsi->tx_busy, 481 vsi->rx_buf_failed, vsi->rx_page_failed); 482 rcu_read_lock(); 483 for (i = 0; i < vsi->num_queue_pairs; i++) { 484 struct i40e_ring *rx_ring = ACCESS_ONCE(vsi->rx_rings[i]); 485 if (!rx_ring) 486 continue; 487 488 dev_info(&pf->pdev->dev, 489 " rx_rings[%i]: desc = %p\n", 490 i, rx_ring->desc); 491 dev_info(&pf->pdev->dev, 492 " rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n", 493 i, rx_ring->dev, 494 rx_ring->netdev, 495 rx_ring->rx_bi); 496 dev_info(&pf->pdev->dev, 497 " rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n", 498 i, rx_ring->state, 499 rx_ring->queue_index, 500 rx_ring->reg_idx); 501 dev_info(&pf->pdev->dev, 502 " rx_rings[%i]: rx_hdr_len = %d, rx_buf_len = %d, dtype = %d\n", 503 i, rx_ring->rx_hdr_len, 504 rx_ring->rx_buf_len, 505 rx_ring->dtype); 506 dev_info(&pf->pdev->dev, 507 " rx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n", 508 i, rx_ring->hsplit, 509 rx_ring->next_to_use, 510 rx_ring->next_to_clean, 511 rx_ring->ring_active); 512 dev_info(&pf->pdev->dev, 513 " rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n", 514 i, rx_ring->stats.packets, 515 rx_ring->stats.bytes, 516 rx_ring->rx_stats.non_eop_descs); 517 dev_info(&pf->pdev->dev, 518 " rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n", 519 i, 520 rx_ring->rx_stats.alloc_page_failed, 521 rx_ring->rx_stats.alloc_buff_failed); 522 dev_info(&pf->pdev->dev, 523 " rx_rings[%i]: size = %i, dma = 0x%08lx\n", 524 i, rx_ring->size, 525 (long unsigned int)rx_ring->dma); 526 dev_info(&pf->pdev->dev, 527 " rx_rings[%i]: vsi = %p, q_vector = %p\n", 528 i, rx_ring->vsi, 529 rx_ring->q_vector); 530 } 531 for (i = 0; i < vsi->num_queue_pairs; i++) { 532 struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]); 533 if (!tx_ring) 534 continue; 535 536 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#ifdef I40E_FCOE 701 if (vsi->type == I40E_VSI_FCOE) { 702 dev_info(&pf->pdev->dev, 703 " fcoe_stats: rx_packets = %llu, rx_dwords = %llu, rx_dropped = %llu\n", 704 vsi->fcoe_stats.rx_fcoe_packets, 705 vsi->fcoe_stats.rx_fcoe_dwords, 706 vsi->fcoe_stats.rx_fcoe_dropped); 707 dev_info(&pf->pdev->dev, 708 " fcoe_stats: tx_packets = %llu, tx_dwords = %llu\n", 709 vsi->fcoe_stats.tx_fcoe_packets, 710 vsi->fcoe_stats.tx_fcoe_dwords); 711 dev_info(&pf->pdev->dev, 712 " fcoe_stats: bad_crc = %llu, last_error = %llu\n", 713 vsi->fcoe_stats.fcoe_bad_fccrc, 714 vsi->fcoe_stats.fcoe_last_error); 715 dev_info(&pf->pdev->dev, " fcoe_stats: ddp_count = %llu\n", 716 vsi->fcoe_stats.fcoe_ddp_count); 717 } 718#endif 719} 720 721/** 722 * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum 723 * @pf: the i40e_pf created in command write 724 **/ 725static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf) 726{ 727 struct i40e_adminq_ring *ring; 728 struct i40e_hw *hw = &pf->hw; 729 char hdr[32]; 730 int i; 731 732 snprintf(hdr, sizeof(hdr), "%s %s: ", 733 dev_driver_string(&pf->pdev->dev), 734 dev_name(&pf->pdev->dev)); 735 736 /* first the send (command) ring, then the receive (event) ring */ 737 dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n"); 738 ring = &(hw->aq.asq); 739 for (i = 0; i < ring->count; i++) { 740 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i); 741 dev_info(&pf->pdev->dev, 742 " at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n", 743 i, d->flags, d->opcode, d->datalen, d->retval, 744 d->cookie_high, d->cookie_low); 745 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE, 746 16, 1, d->params.raw, 16, 0); 747 } 748 749 dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n"); 750 ring = &(hw->aq.arq); 751 for (i = 0; i < ring->count; i++) { 752 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i); 753 dev_info(&pf->pdev->dev, 754 " ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n", 755 i, d->flags, d->opcode, d->datalen, d->retval, 756 d->cookie_high, d->cookie_low); 757 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE, 758 16, 1, d->params.raw, 16, 0); 759 } 760} 761 762/** 763 * i40e_dbg_dump_desc - handles dump desc write into command datum 764 * @cnt: number of arguments that the user supplied 765 * @vsi_seid: vsi id entered by user 766 * @ring_id: ring id entered by user 767 * @desc_n: descriptor number entered by user 768 * @pf: the i40e_pf created in command write 769 * @is_rx_ring: true if rx, false if tx 770 **/ 771static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n, 772 struct i40e_pf *pf, bool is_rx_ring) 773{ 774 struct i40e_tx_desc *txd; 775 union i40e_rx_desc *rxd; 776 struct i40e_ring ring; 777 struct i40e_vsi *vsi; 778 int i; 779 780 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 781 if (!vsi) { 782 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid); 783 return; 784 } 785 if (ring_id >= vsi->num_queue_pairs || ring_id < 0) { 786 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id); 787 return; 788 } 789 if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) { 790 dev_info(&pf->pdev->dev, 791 "descriptor rings have not been allocated for vsi %d\n", 792 vsi_seid); 793 return; 794 } 795 if (is_rx_ring) 796 ring = *vsi->rx_rings[ring_id]; 797 else 798 ring = *vsi->tx_rings[ring_id]; 799 if (cnt == 2) { 800 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n", 801 vsi_seid, is_rx_ring ? "rx" : "tx", ring_id); 802 for (i = 0; i < ring.count; i++) { 803 if (!is_rx_ring) { 804 txd = I40E_TX_DESC(&ring, i); 805 dev_info(&pf->pdev->dev, 806 " d[%03i] = 0x%016llx 0x%016llx\n", 807 i, txd->buffer_addr, 808 txd->cmd_type_offset_bsz); 809 } else if (sizeof(union i40e_rx_desc) == 810 sizeof(union i40e_16byte_rx_desc)) { 811 rxd = I40E_RX_DESC(&ring, i); 812 dev_info(&pf->pdev->dev, 813 " d[%03i] = 0x%016llx 0x%016llx\n", 814 i, rxd->read.pkt_addr, 815 rxd->read.hdr_addr); 816 } else { 817 rxd = I40E_RX_DESC(&ring, i); 818 dev_info(&pf->pdev->dev, 819 " d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n", 820 i, rxd->read.pkt_addr, 821 rxd->read.hdr_addr, 822 rxd->read.rsvd1, rxd->read.rsvd2); 823 } 824 } 825 } else if (cnt == 3) { 826 if (desc_n >= ring.count || desc_n < 0) { 827 dev_info(&pf->pdev->dev, 828 "descriptor %d not found\n", desc_n); 829 return; 830 } 831 if (!is_rx_ring) { 832 txd = I40E_TX_DESC(&ring, desc_n); 833 dev_info(&pf->pdev->dev, 834 "vsi = %02i tx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n", 835 vsi_seid, ring_id, desc_n, 836 txd->buffer_addr, txd->cmd_type_offset_bsz); 837 } else if (sizeof(union i40e_rx_desc) == 838 sizeof(union i40e_16byte_rx_desc)) { 839 rxd = I40E_RX_DESC(&ring, desc_n); 840 dev_info(&pf->pdev->dev, 841 "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n", 842 vsi_seid, ring_id, desc_n, 843 rxd->read.pkt_addr, rxd->read.hdr_addr); 844 } else { 845 rxd = I40E_RX_DESC(&ring, desc_n); 846 dev_info(&pf->pdev->dev, 847 "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n", 848 vsi_seid, ring_id, desc_n, 849 rxd->read.pkt_addr, rxd->read.hdr_addr, 850 rxd->read.rsvd1, rxd->read.rsvd2); 851 } 852 } else { 853 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n"); 854 } 855} 856 857/** 858 * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum 859 * @pf: the i40e_pf created in command write 860 **/ 861static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf) 862{ 863 int i; 864 865 for (i = 0; i < pf->num_alloc_vsi; i++) 866 if (pf->vsi[i]) 867 dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n", 868 i, pf->vsi[i]->seid); 869} 870 871/** 872 * i40e_dbg_dump_stats - handles dump stats write into command datum 873 * @pf: the i40e_pf created in command write 874 * @estats: the eth stats structure to be dumped 875 **/ 876static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf, 877 struct i40e_eth_stats *estats) 878{ 879 dev_info(&pf->pdev->dev, " ethstats:\n"); 880 dev_info(&pf->pdev->dev, 881 " rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n", 882 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast); 883 dev_info(&pf->pdev->dev, 884 " rx_broadcast = \t%lld \trx_discards = \t\t%lld\n", 885 estats->rx_broadcast, estats->rx_discards); 886 dev_info(&pf->pdev->dev, 887 " rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n", 888 estats->rx_unknown_protocol, estats->tx_bytes); 889 dev_info(&pf->pdev->dev, 890 " tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n", 891 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast); 892 dev_info(&pf->pdev->dev, 893 " tx_discards = \t%lld \ttx_errors = \t\t%lld\n", 894 estats->tx_discards, estats->tx_errors); 895} 896 897/** 898 * i40e_dbg_dump_stats - handles dump stats write into command datum 899 * @pf: the i40e_pf created in command write 900 * @stats: the stats structure to be dumped 901 **/ 902static void i40e_dbg_dump_stats(struct i40e_pf *pf, 903 struct i40e_hw_port_stats *stats) 904{ 905 int i; 906 907 dev_info(&pf->pdev->dev, " stats:\n"); 908 dev_info(&pf->pdev->dev, 909 " crc_errors = \t\t%lld \tillegal_bytes = \t%lld \terror_bytes = \t\t%lld\n", 910 stats->crc_errors, stats->illegal_bytes, stats->error_bytes); 911 dev_info(&pf->pdev->dev, 912 " mac_local_faults = \t%lld \tmac_remote_faults = \t%lld \trx_length_errors = \t%lld\n", 913 stats->mac_local_faults, stats->mac_remote_faults, 914 stats->rx_length_errors); 915 dev_info(&pf->pdev->dev, 916 " link_xon_rx = \t\t%lld \tlink_xoff_rx = \t\t%lld \tlink_xon_tx = \t\t%lld\n", 917 stats->link_xon_rx, stats->link_xoff_rx, stats->link_xon_tx); 918 dev_info(&pf->pdev->dev, 919 " link_xoff_tx = \t\t%lld \trx_size_64 = \t\t%lld \trx_size_127 = \t\t%lld\n", 920 stats->link_xoff_tx, stats->rx_size_64, stats->rx_size_127); 921 dev_info(&pf->pdev->dev, 922 " rx_size_255 = \t\t%lld \trx_size_511 = \t\t%lld \trx_size_1023 = \t\t%lld\n", 923 stats->rx_size_255, stats->rx_size_511, stats->rx_size_1023); 924 dev_info(&pf->pdev->dev, 925 " rx_size_big = \t\t%lld \trx_undersize = \t\t%lld \trx_jabber = \t\t%lld\n", 926 stats->rx_size_big, stats->rx_undersize, stats->rx_jabber); 927 dev_info(&pf->pdev->dev, 928 " rx_fragments = \t\t%lld \trx_oversize = \t\t%lld \ttx_size_64 = \t\t%lld\n", 929 stats->rx_fragments, stats->rx_oversize, stats->tx_size_64); 930 dev_info(&pf->pdev->dev, 931 " tx_size_127 = \t\t%lld \ttx_size_255 = \t\t%lld \ttx_size_511 = \t\t%lld\n", 932 stats->tx_size_127, stats->tx_size_255, stats->tx_size_511); 933 dev_info(&pf->pdev->dev, 934 " tx_size_1023 = \t\t%lld \ttx_size_big = \t\t%lld \tmac_short_packet_dropped = \t%lld\n", 935 stats->tx_size_1023, stats->tx_size_big, 936 stats->mac_short_packet_dropped); 937 for (i = 0; i < 8; i += 4) { 938 dev_info(&pf->pdev->dev, 939 " priority_xon_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 940 i, stats->priority_xon_rx[i], 941 i+1, stats->priority_xon_rx[i+1], 942 i+2, stats->priority_xon_rx[i+2], 943 i+3, stats->priority_xon_rx[i+3]); 944 } 945 for (i = 0; i < 8; i += 4) { 946 dev_info(&pf->pdev->dev, 947 " priority_xoff_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 948 i, stats->priority_xoff_rx[i], 949 i+1, stats->priority_xoff_rx[i+1], 950 i+2, stats->priority_xoff_rx[i+2], 951 i+3, stats->priority_xoff_rx[i+3]); 952 } 953 for (i = 0; i < 8; i += 4) { 954 dev_info(&pf->pdev->dev, 955 " priority_xon_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 956 i, stats->priority_xon_tx[i], 957 i+1, stats->priority_xon_tx[i+1], 958 i+2, stats->priority_xon_tx[i+2], 959 i+3, stats->priority_xon_rx[i+3]); 960 } 961 for (i = 0; i < 8; i += 4) { 962 dev_info(&pf->pdev->dev, 963 " priority_xoff_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 964 i, stats->priority_xoff_tx[i], 965 i+1, stats->priority_xoff_tx[i+1], 966 i+2, stats->priority_xoff_tx[i+2], 967 i+3, stats->priority_xoff_tx[i+3]); 968 } 969 for (i = 0; i < 8; i += 4) { 970 dev_info(&pf->pdev->dev, 971 " priority_xon_2_xoff[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 972 i, stats->priority_xon_2_xoff[i], 973 i+1, stats->priority_xon_2_xoff[i+1], 974 i+2, stats->priority_xon_2_xoff[i+2], 975 i+3, stats->priority_xon_2_xoff[i+3]); 976 } 977 978 i40e_dbg_dump_eth_stats(pf, &stats->eth); 979} 980 981/** 982 * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb 983 * @pf: the i40e_pf created in command write 984 * @seid: the seid the user put in 985 **/ 986static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid) 987{ 988 struct i40e_veb *veb; 989 990 if ((seid < I40E_BASE_VEB_SEID) || 991 (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) { 992 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid); 993 return; 994 } 995 996 veb = i40e_dbg_find_veb(pf, seid); 997 if (!veb) { 998 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid); 999 return; 1000 } 1001 dev_info(&pf->pdev->dev, 1002 "veb idx=%d,%d stats_ic=%d seid=%d uplink=%d\n", 1003 veb->idx, veb->veb_idx, veb->stats_idx, veb->seid, 1004 veb->uplink_seid); 1005 i40e_dbg_dump_eth_stats(pf, &veb->stats); 1006} 1007 1008/** 1009 * i40e_dbg_dump_veb_all - dumps all known veb's stats 1010 * @pf: the i40e_pf created in command write 1011 **/ 1012static void i40e_dbg_dump_veb_all(struct i40e_pf *pf) 1013{ 1014 struct i40e_veb *veb; 1015 int i; 1016 1017 for (i = 0; i < I40E_MAX_VEB; i++) { 1018 veb = pf->veb[i]; 1019 if (veb) 1020 i40e_dbg_dump_veb_seid(pf, veb->seid); 1021 } 1022} 1023 1024/** 1025 * i40e_dbg_cmd_fd_ctrl - Enable/disable FD sideband/ATR 1026 * @pf: the pf that would be altered 1027 * @flag: flag that needs enabling or disabling 1028 * @enable: Enable/disable FD SD/ATR 1029 **/ 1030static void i40e_dbg_cmd_fd_ctrl(struct i40e_pf *pf, u64 flag, bool enable) 1031{ 1032 if (enable) { 1033 pf->flags |= flag; 1034 } else { 1035 pf->flags &= ~flag; 1036 pf->auto_disable_flags |= flag; 1037 } 1038 dev_info(&pf->pdev->dev, "requesting a pf reset\n"); 1039 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED)); 1040} 1041 1042#define I40E_MAX_DEBUG_OUT_BUFFER (4096*4) 1043/** 1044 * i40e_dbg_command_write - write into command datum 1045 * @filp: the opened file 1046 * @buffer: where to find the user's data 1047 * @count: the length of the user's data 1048 * @ppos: file position offset 1049 **/ 1050static ssize_t i40e_dbg_command_write(struct file *filp, 1051 const char __user *buffer, 1052 size_t count, loff_t *ppos) 1053{ 1054 struct i40e_pf *pf = filp->private_data; 1055 char *cmd_buf, *cmd_buf_tmp; 1056 int bytes_not_copied; 1057 struct i40e_vsi *vsi; 1058 int vsi_seid; 1059 int veb_seid; 1060 int cnt; 1061 1062 /* don't allow partial writes */ 1063 if (*ppos != 0) 1064 return 0; 1065 1066 cmd_buf = kzalloc(count + 1, GFP_KERNEL); 1067 if (!cmd_buf) 1068 return count; 1069 bytes_not_copied = copy_from_user(cmd_buf, buffer, count); 1070 if (bytes_not_copied < 0) 1071 return bytes_not_copied; 1072 if (bytes_not_copied > 0) 1073 count -= bytes_not_copied; 1074 cmd_buf[count] = '\0'; 1075 1076 cmd_buf_tmp = strchr(cmd_buf, '\n'); 1077 if (cmd_buf_tmp) { 1078 *cmd_buf_tmp = '\0'; 1079 count = cmd_buf_tmp - cmd_buf + 1; 1080 } 1081 1082 if (strncmp(cmd_buf, "add vsi", 7) == 0) { 1083 vsi_seid = -1; 1084 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid); 1085 if (cnt == 0) { 1086 /* default to PF VSI */ 1087 vsi_seid = pf->vsi[pf->lan_vsi]->seid; 1088 } else if (vsi_seid < 0) { 1089 dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n", 1090 vsi_seid); 1091 goto command_write_done; 1092 } 1093 1094 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0); 1095 if (vsi) 1096 dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n", 1097 vsi->seid, vsi->uplink_seid); 1098 else 1099 dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf); 1100 1101 } else if (strncmp(cmd_buf, "del vsi", 7) == 0) { 1102 sscanf(&cmd_buf[7], "%i", &vsi_seid); 1103 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1104 if (!vsi) { 1105 dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n", 1106 vsi_seid); 1107 goto command_write_done; 1108 } 1109 1110 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid); 1111 i40e_vsi_release(vsi); 1112 1113 } else if (strncmp(cmd_buf, "add relay", 9) == 0) { 1114 struct i40e_veb *veb; 1115 int uplink_seid, i; 1116 1117 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid); 1118 if (cnt != 2) { 1119 dev_info(&pf->pdev->dev, 1120 "add relay: bad command string, cnt=%d\n", 1121 cnt); 1122 goto command_write_done; 1123 } else if (uplink_seid < 0) { 1124 dev_info(&pf->pdev->dev, 1125 "add relay %d: bad uplink seid\n", 1126 uplink_seid); 1127 goto command_write_done; 1128 } 1129 1130 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1131 if (!vsi) { 1132 dev_info(&pf->pdev->dev, 1133 "add relay: VSI %d not found\n", vsi_seid); 1134 goto command_write_done; 1135 } 1136 1137 for (i = 0; i < I40E_MAX_VEB; i++) 1138 if (pf->veb[i] && pf->veb[i]->seid == uplink_seid) 1139 break; 1140 if (i >= I40E_MAX_VEB && uplink_seid != 0 && 1141 uplink_seid != pf->mac_seid) { 1142 dev_info(&pf->pdev->dev, 1143 "add relay: relay uplink %d not found\n", 1144 uplink_seid); 1145 goto command_write_done; 1146 } 1147 1148 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid, 1149 vsi->tc_config.enabled_tc); 1150 if (veb) 1151 dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid); 1152 else 1153 dev_info(&pf->pdev->dev, "add relay failed\n"); 1154 1155 } else if (strncmp(cmd_buf, "del relay", 9) == 0) { 1156 int i; 1157 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid); 1158 if (cnt != 1) { 1159 dev_info(&pf->pdev->dev, 1160 "del relay: bad command string, cnt=%d\n", 1161 cnt); 1162 goto command_write_done; 1163 } else if (veb_seid < 0) { 1164 dev_info(&pf->pdev->dev, 1165 "del relay %d: bad relay seid\n", veb_seid); 1166 goto command_write_done; 1167 } 1168 1169 /* find the veb */ 1170 for (i = 0; i < I40E_MAX_VEB; i++) 1171 if (pf->veb[i] && pf->veb[i]->seid == veb_seid) 1172 break; 1173 if (i >= I40E_MAX_VEB) { 1174 dev_info(&pf->pdev->dev, 1175 "del relay: relay %d not found\n", veb_seid); 1176 goto command_write_done; 1177 } 1178 1179 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid); 1180 i40e_veb_release(pf->veb[i]); 1181 1182 } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) { 1183 struct i40e_mac_filter *f; 1184 int vlan = 0; 1185 u8 ma[6]; 1186 int ret; 1187 1188 cnt = sscanf(&cmd_buf[11], 1189 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i", 1190 &vsi_seid, 1191 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5], 1192 &vlan); 1193 if (cnt == 7) { 1194 vlan = 0; 1195 } else if (cnt != 8) { 1196 dev_info(&pf->pdev->dev, 1197 "add macaddr: bad command string, cnt=%d\n", 1198 cnt); 1199 goto command_write_done; 1200 } 1201 1202 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1203 if (!vsi) { 1204 dev_info(&pf->pdev->dev, 1205 "add macaddr: VSI %d not found\n", vsi_seid); 1206 goto command_write_done; 1207 } 1208 1209 f = i40e_add_filter(vsi, ma, vlan, false, false); 1210 ret = i40e_sync_vsi_filters(vsi); 1211 if (f && !ret) 1212 dev_info(&pf->pdev->dev, 1213 "add macaddr: %pM vlan=%d added to VSI %d\n", 1214 ma, vlan, vsi_seid); 1215 else 1216 dev_info(&pf->pdev->dev, 1217 "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n", 1218 ma, vlan, vsi_seid, f, ret); 1219 1220 } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) { 1221 int vlan = 0; 1222 u8 ma[6]; 1223 int ret; 1224 1225 cnt = sscanf(&cmd_buf[11], 1226 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i", 1227 &vsi_seid, 1228 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5], 1229 &vlan); 1230 if (cnt == 7) { 1231 vlan = 0; 1232 } else if (cnt != 8) { 1233 dev_info(&pf->pdev->dev, 1234 "del macaddr: bad command string, cnt=%d\n", 1235 cnt); 1236 goto command_write_done; 1237 } 1238 1239 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1240 if (!vsi) { 1241 dev_info(&pf->pdev->dev, 1242 "del macaddr: VSI %d not found\n", vsi_seid); 1243 goto command_write_done; 1244 } 1245 1246 i40e_del_filter(vsi, ma, vlan, false, false); 1247 ret = i40e_sync_vsi_filters(vsi); 1248 if (!ret) 1249 dev_info(&pf->pdev->dev, 1250 "del macaddr: %pM vlan=%d removed from VSI %d\n", 1251 ma, vlan, vsi_seid); 1252 else 1253 dev_info(&pf->pdev->dev, 1254 "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n", 1255 ma, vlan, vsi_seid, ret); 1256 1257 } else if (strncmp(cmd_buf, "add pvid", 8) == 0) { 1258 i40e_status ret; 1259 u16 vid; 1260 unsigned int v; 1261 1262 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v); 1263 if (cnt != 2) { 1264 dev_info(&pf->pdev->dev, 1265 "add pvid: bad command string, cnt=%d\n", cnt); 1266 goto command_write_done; 1267 } 1268 1269 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1270 if (!vsi) { 1271 dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n", 1272 vsi_seid); 1273 goto command_write_done; 1274 } 1275 1276 vid = v; 1277 ret = i40e_vsi_add_pvid(vsi, vid); 1278 if (!ret) 1279 dev_info(&pf->pdev->dev, 1280 "add pvid: %d added to VSI %d\n", 1281 vid, vsi_seid); 1282 else 1283 dev_info(&pf->pdev->dev, 1284 "add pvid: %d to VSI %d failed, ret=%d\n", 1285 vid, vsi_seid, ret); 1286 1287 } else if (strncmp(cmd_buf, "del pvid", 8) == 0) { 1288 1289 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1290 if (cnt != 1) { 1291 dev_info(&pf->pdev->dev, 1292 "del pvid: bad command string, cnt=%d\n", 1293 cnt); 1294 goto command_write_done; 1295 } 1296 1297 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1298 if (!vsi) { 1299 dev_info(&pf->pdev->dev, 1300 "del pvid: VSI %d not found\n", vsi_seid); 1301 goto command_write_done; 1302 } 1303 1304 i40e_vsi_remove_pvid(vsi); 1305 dev_info(&pf->pdev->dev, 1306 "del pvid: removed from VSI %d\n", vsi_seid); 1307 1308 } else if (strncmp(cmd_buf, "dump", 4) == 0) { 1309 if (strncmp(&cmd_buf[5], "switch", 6) == 0) { 1310 i40e_fetch_switch_configuration(pf, true); 1311 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) { 1312 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1313 if (cnt > 0) 1314 i40e_dbg_dump_vsi_seid(pf, vsi_seid); 1315 else 1316 i40e_dbg_dump_vsi_no_seid(pf); 1317 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) { 1318 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1319 if (cnt > 0) 1320 i40e_dbg_dump_veb_seid(pf, vsi_seid); 1321 else 1322 i40e_dbg_dump_veb_all(pf); 1323 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) { 1324 int ring_id, desc_n; 1325 if (strncmp(&cmd_buf[10], "rx", 2) == 0) { 1326 cnt = sscanf(&cmd_buf[12], "%i %i %i", 1327 &vsi_seid, &ring_id, &desc_n); 1328 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id, 1329 desc_n, pf, true); 1330 } else if (strncmp(&cmd_buf[10], "tx", 2) 1331 == 0) { 1332 cnt = sscanf(&cmd_buf[12], "%i %i %i", 1333 &vsi_seid, &ring_id, &desc_n); 1334 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id, 1335 desc_n, pf, false); 1336 } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) { 1337 i40e_dbg_dump_aq_desc(pf); 1338 } else { 1339 dev_info(&pf->pdev->dev, 1340 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n"); 1341 dev_info(&pf->pdev->dev, 1342 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n"); 1343 dev_info(&pf->pdev->dev, "dump desc aq\n"); 1344 } 1345 } else if (strncmp(&cmd_buf[5], "stats", 5) == 0) { 1346 dev_info(&pf->pdev->dev, "pf stats:\n"); 1347 i40e_dbg_dump_stats(pf, &pf->stats); 1348 dev_info(&pf->pdev->dev, "pf stats_offsets:\n"); 1349 i40e_dbg_dump_stats(pf, &pf->stats_offsets); 1350 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) { 1351 dev_info(&pf->pdev->dev, 1352 "core reset count: %d\n", pf->corer_count); 1353 dev_info(&pf->pdev->dev, 1354 "global reset count: %d\n", pf->globr_count); 1355 dev_info(&pf->pdev->dev, 1356 "emp reset count: %d\n", pf->empr_count); 1357 dev_info(&pf->pdev->dev, 1358 "pf reset count: %d\n", pf->pfr_count); 1359 dev_info(&pf->pdev->dev, 1360 "pf tx sluggish count: %d\n", 1361 pf->tx_sluggish_count); 1362 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) { 1363 struct i40e_aqc_query_port_ets_config_resp *bw_data; 1364 struct i40e_dcbx_config *cfg = 1365 &pf->hw.local_dcbx_config; 1366 struct i40e_dcbx_config *r_cfg = 1367 &pf->hw.remote_dcbx_config; 1368 int i, ret; 1369 1370 bw_data = kzalloc(sizeof( 1371 struct i40e_aqc_query_port_ets_config_resp), 1372 GFP_KERNEL); 1373 if (!bw_data) { 1374 ret = -ENOMEM; 1375 goto command_write_done; 1376 } 1377 1378 ret = i40e_aq_query_port_ets_config(&pf->hw, 1379 pf->mac_seid, 1380 bw_data, NULL); 1381 if (ret) { 1382 dev_info(&pf->pdev->dev, 1383 "Query Port ETS Config AQ command failed =0x%x\n", 1384 pf->hw.aq.asq_last_status); 1385 kfree(bw_data); 1386 bw_data = NULL; 1387 goto command_write_done; 1388 } 1389 dev_info(&pf->pdev->dev, 1390 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n", 1391 bw_data->tc_valid_bits, 1392 bw_data->tc_strict_priority_bits, 1393 le16_to_cpu(bw_data->tc_bw_max[0]), 1394 le16_to_cpu(bw_data->tc_bw_max[1])); 1395 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1396 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n", 1397 bw_data->tc_bw_share_credits[i], 1398 le16_to_cpu(bw_data->tc_bw_limits[i])); 1399 } 1400 1401 kfree(bw_data); 1402 bw_data = NULL; 1403 1404 dev_info(&pf->pdev->dev, 1405 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n", 1406 cfg->etscfg.willing, cfg->etscfg.cbs, 1407 cfg->etscfg.maxtcs); 1408 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1409 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1410 i, cfg->etscfg.prioritytable[i], 1411 cfg->etscfg.tcbwtable[i], 1412 cfg->etscfg.tsatable[i]); 1413 } 1414 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1415 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1416 i, cfg->etsrec.prioritytable[i], 1417 cfg->etsrec.tcbwtable[i], 1418 cfg->etsrec.tsatable[i]); 1419 } 1420 dev_info(&pf->pdev->dev, 1421 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n", 1422 cfg->pfc.willing, cfg->pfc.mbc, 1423 cfg->pfc.pfccap, cfg->pfc.pfcenable); 1424 dev_info(&pf->pdev->dev, 1425 "port app_table: num_apps=%d\n", cfg->numapps); 1426 for (i = 0; i < cfg->numapps; i++) { 1427 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n", 1428 i, cfg->app[i].priority, 1429 cfg->app[i].selector, 1430 cfg->app[i].protocolid); 1431 } 1432 /* Peer TLV DCBX data */ 1433 dev_info(&pf->pdev->dev, 1434 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n", 1435 r_cfg->etscfg.willing, 1436 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs); 1437 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1438 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1439 i, r_cfg->etscfg.prioritytable[i], 1440 r_cfg->etscfg.tcbwtable[i], 1441 r_cfg->etscfg.tsatable[i]); 1442 } 1443 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1444 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1445 i, r_cfg->etsrec.prioritytable[i], 1446 r_cfg->etsrec.tcbwtable[i], 1447 r_cfg->etsrec.tsatable[i]); 1448 } 1449 dev_info(&pf->pdev->dev, 1450 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n", 1451 r_cfg->pfc.willing, 1452 r_cfg->pfc.mbc, 1453 r_cfg->pfc.pfccap, 1454 r_cfg->pfc.pfcenable); 1455 dev_info(&pf->pdev->dev, 1456 "remote port app_table: num_apps=%d\n", 1457 r_cfg->numapps); 1458 for (i = 0; i < r_cfg->numapps; i++) { 1459 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n", 1460 i, r_cfg->app[i].priority, 1461 r_cfg->app[i].selector, 1462 r_cfg->app[i].protocolid); 1463 } 1464 } else { 1465 dev_info(&pf->pdev->dev, 1466 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n"); 1467 dev_info(&pf->pdev->dev, "dump switch, dump vsi [seid] or\n"); 1468 dev_info(&pf->pdev->dev, "dump stats\n"); 1469 dev_info(&pf->pdev->dev, "dump reset stats\n"); 1470 dev_info(&pf->pdev->dev, "dump port\n"); 1471 dev_info(&pf->pdev->dev, 1472 "dump debug fwdata <cluster_id> <table_id> <index>\n"); 1473 } 1474 1475 } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) { 1476 u32 level; 1477 cnt = sscanf(&cmd_buf[10], "%i", &level); 1478 if (cnt) { 1479 if (I40E_DEBUG_USER & level) { 1480 pf->hw.debug_mask = level; 1481 dev_info(&pf->pdev->dev, 1482 "set hw.debug_mask = 0x%08x\n", 1483 pf->hw.debug_mask); 1484 } 1485 pf->msg_enable = level; 1486 dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n", 1487 pf->msg_enable); 1488 } else { 1489 dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n", 1490 pf->msg_enable); 1491 } 1492 } else if (strncmp(cmd_buf, "pfr", 3) == 0) { 1493 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n"); 1494 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED)); 1495 1496 } else if (strncmp(cmd_buf, "corer", 5) == 0) { 1497 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n"); 1498 i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED)); 1499 1500 } else if (strncmp(cmd_buf, "globr", 5) == 0) { 1501 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n"); 1502 i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED)); 1503 1504 } else if (strncmp(cmd_buf, "empr", 4) == 0) { 1505 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n"); 1506 i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED)); 1507 1508 } else if (strncmp(cmd_buf, "read", 4) == 0) { 1509 u32 address; 1510 u32 value; 1511 cnt = sscanf(&cmd_buf[4], "%i", &address); 1512 if (cnt != 1) { 1513 dev_info(&pf->pdev->dev, "read <reg>\n"); 1514 goto command_write_done; 1515 } 1516 1517 /* check the range on address */ 1518 if (address >= I40E_MAX_REGISTER) { 1519 dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n", 1520 address); 1521 goto command_write_done; 1522 } 1523 1524 value = rd32(&pf->hw, address); 1525 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n", 1526 address, value); 1527 1528 } else if (strncmp(cmd_buf, "write", 5) == 0) { 1529 u32 address, value; 1530 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value); 1531 if (cnt != 2) { 1532 dev_info(&pf->pdev->dev, "write <reg> <value>\n"); 1533 goto command_write_done; 1534 } 1535 1536 /* check the range on address */ 1537 if (address >= I40E_MAX_REGISTER) { 1538 dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n", 1539 address); 1540 goto command_write_done; 1541 } 1542 wr32(&pf->hw, address, value); 1543 value = rd32(&pf->hw, address); 1544 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n", 1545 address, value); 1546 } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) { 1547 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) { 1548 cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid); 1549 if (cnt == 0) { 1550 int i; 1551 for (i = 0; i < pf->num_alloc_vsi; i++) 1552 i40e_vsi_reset_stats(pf->vsi[i]); 1553 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n"); 1554 } else if (cnt == 1) { 1555 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1556 if (!vsi) { 1557 dev_info(&pf->pdev->dev, 1558 "clear_stats vsi: bad vsi %d\n", 1559 vsi_seid); 1560 goto command_write_done; 1561 } 1562 i40e_vsi_reset_stats(vsi); 1563 dev_info(&pf->pdev->dev, 1564 "vsi clear stats called for vsi %d\n", 1565 vsi_seid); 1566 } else { 1567 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n"); 1568 } 1569 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) { 1570 i40e_pf_reset_stats(pf); 1571 dev_info(&pf->pdev->dev, "pf clear stats called\n"); 1572 } else { 1573 dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n"); 1574 } 1575 } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) { 1576 struct i40e_aq_desc *desc; 1577 i40e_status ret; 1578 1579 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL); 1580 if (!desc) 1581 goto command_write_done; 1582 cnt = sscanf(&cmd_buf[11], 1583 "%hx %hx %hx %hx %x %x %x %x %x %x", 1584 &desc->flags, 1585 &desc->opcode, &desc->datalen, &desc->retval, 1586 &desc->cookie_high, &desc->cookie_low, 1587 &desc->params.internal.param0, 1588 &desc->params.internal.param1, 1589 &desc->params.internal.param2, 1590 &desc->params.internal.param3); 1591 if (cnt != 10) { 1592 dev_info(&pf->pdev->dev, 1593 "send aq_cmd: bad command string, cnt=%d\n", 1594 cnt); 1595 kfree(desc); 1596 desc = NULL; 1597 goto command_write_done; 1598 } 1599 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL); 1600 if (!ret) { 1601 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n"); 1602 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) { 1603 dev_info(&pf->pdev->dev, 1604 "AQ command send failed Opcode %x AQ Error: %d\n", 1605 desc->opcode, pf->hw.aq.asq_last_status); 1606 } else { 1607 dev_info(&pf->pdev->dev, 1608 "AQ command send failed Opcode %x Status: %d\n", 1609 desc->opcode, ret); 1610 } 1611 dev_info(&pf->pdev->dev, 1612 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", 1613 desc->flags, desc->opcode, desc->datalen, desc->retval, 1614 desc->cookie_high, desc->cookie_low, 1615 desc->params.internal.param0, 1616 desc->params.internal.param1, 1617 desc->params.internal.param2, 1618 desc->params.internal.param3); 1619 kfree(desc); 1620 desc = NULL; 1621 } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) { 1622 struct i40e_aq_desc *desc; 1623 i40e_status ret; 1624 u16 buffer_len; 1625 u8 *buff; 1626 1627 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL); 1628 if (!desc) 1629 goto command_write_done; 1630 cnt = sscanf(&cmd_buf[20], 1631 "%hx %hx %hx %hx %x %x %x %x %x %x %hd", 1632 &desc->flags, 1633 &desc->opcode, &desc->datalen, &desc->retval, 1634 &desc->cookie_high, &desc->cookie_low, 1635 &desc->params.internal.param0, 1636 &desc->params.internal.param1, 1637 &desc->params.internal.param2, 1638 &desc->params.internal.param3, 1639 &buffer_len); 1640 if (cnt != 11) { 1641 dev_info(&pf->pdev->dev, 1642 "send indirect aq_cmd: bad command string, cnt=%d\n", 1643 cnt); 1644 kfree(desc); 1645 desc = NULL; 1646 goto command_write_done; 1647 } 1648 /* Just stub a buffer big enough in case user messed up */ 1649 if (buffer_len == 0) 1650 buffer_len = 1280; 1651 1652 buff = kzalloc(buffer_len, GFP_KERNEL); 1653 if (!buff) { 1654 kfree(desc); 1655 desc = NULL; 1656 goto command_write_done; 1657 } 1658 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF); 1659 ret = i40e_asq_send_command(&pf->hw, desc, buff, 1660 buffer_len, NULL); 1661 if (!ret) { 1662 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n"); 1663 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) { 1664 dev_info(&pf->pdev->dev, 1665 "AQ command send failed Opcode %x AQ Error: %d\n", 1666 desc->opcode, pf->hw.aq.asq_last_status); 1667 } else { 1668 dev_info(&pf->pdev->dev, 1669 "AQ command send failed Opcode %x Status: %d\n", 1670 desc->opcode, ret); 1671 } 1672 dev_info(&pf->pdev->dev, 1673 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", 1674 desc->flags, desc->opcode, desc->datalen, desc->retval, 1675 desc->cookie_high, desc->cookie_low, 1676 desc->params.internal.param0, 1677 desc->params.internal.param1, 1678 desc->params.internal.param2, 1679 desc->params.internal.param3); 1680 print_hex_dump(KERN_INFO, "AQ buffer WB: ", 1681 DUMP_PREFIX_OFFSET, 16, 1, 1682 buff, buffer_len, true); 1683 kfree(buff); 1684 buff = NULL; 1685 kfree(desc); 1686 desc = NULL; 1687 } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) || 1688 (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) { 1689 struct i40e_fdir_filter fd_data; 1690 u16 packet_len, i, j = 0; 1691 char *asc_packet; 1692 u8 *raw_packet; 1693 bool add = false; 1694 int ret; 1695 1696 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 1697 goto command_write_done; 1698 1699 if (strncmp(cmd_buf, "add", 3) == 0) 1700 add = true; 1701 1702 if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)) 1703 goto command_write_done; 1704 1705 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE, 1706 GFP_KERNEL); 1707 if (!asc_packet) 1708 goto command_write_done; 1709 1710 raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE, 1711 GFP_KERNEL); 1712 1713 if (!raw_packet) { 1714 kfree(asc_packet); 1715 asc_packet = NULL; 1716 goto command_write_done; 1717 } 1718 1719 cnt = sscanf(&cmd_buf[13], 1720 "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s", 1721 &fd_data.q_index, 1722 &fd_data.flex_off, &fd_data.pctype, 1723 &fd_data.dest_vsi, &fd_data.dest_ctl, 1724 &fd_data.fd_status, &fd_data.cnt_index, 1725 &fd_data.fd_id, &packet_len, asc_packet); 1726 if (cnt != 10) { 1727 dev_info(&pf->pdev->dev, 1728 "program fd_filter: bad command string, cnt=%d\n", 1729 cnt); 1730 kfree(asc_packet); 1731 asc_packet = NULL; 1732 kfree(raw_packet); 1733 goto command_write_done; 1734 } 1735 1736 /* fix packet length if user entered 0 */ 1737 if (packet_len == 0) 1738 packet_len = I40E_FDIR_MAX_RAW_PACKET_SIZE; 1739 1740 /* make sure to check the max as well */ 1741 packet_len = min_t(u16, 1742 packet_len, I40E_FDIR_MAX_RAW_PACKET_SIZE); 1743 1744 for (i = 0; i < packet_len; i++) { 1745 sscanf(&asc_packet[j], "%2hhx ", 1746 &raw_packet[i]); 1747 j += 3; 1748 } 1749 dev_info(&pf->pdev->dev, "FD raw packet dump\n"); 1750 print_hex_dump(KERN_INFO, "FD raw packet: ", 1751 DUMP_PREFIX_OFFSET, 16, 1, 1752 raw_packet, packet_len, true); 1753 ret = i40e_program_fdir_filter(&fd_data, raw_packet, pf, add); 1754 if (!ret) { 1755 dev_info(&pf->pdev->dev, "Filter command send Status : Success\n"); 1756 } else { 1757 dev_info(&pf->pdev->dev, 1758 "Filter command send failed %d\n", ret); 1759 } 1760 kfree(raw_packet); 1761 raw_packet = NULL; 1762 kfree(asc_packet); 1763 asc_packet = NULL; 1764 } else if (strncmp(cmd_buf, "fd-atr off", 10) == 0) { 1765 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, false); 1766 } else if (strncmp(cmd_buf, "fd-atr on", 9) == 0) { 1767 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, true); 1768 } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) { 1769 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n", 1770 i40e_get_current_fd_count(pf)); 1771 } else if (strncmp(cmd_buf, "lldp", 4) == 0) { 1772 if (strncmp(&cmd_buf[5], "stop", 4) == 0) { 1773 int ret; 1774 ret = i40e_aq_stop_lldp(&pf->hw, false, NULL); 1775 if (ret) { 1776 dev_info(&pf->pdev->dev, 1777 "Stop LLDP AQ command failed =0x%x\n", 1778 pf->hw.aq.asq_last_status); 1779 goto command_write_done; 1780 } 1781 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw, 1782 pf->hw.mac.addr, 1783 I40E_ETH_P_LLDP, 0, 1784 pf->vsi[pf->lan_vsi]->seid, 1785 0, true, NULL, NULL); 1786 if (ret) { 1787 dev_info(&pf->pdev->dev, 1788 "%s: Add Control Packet Filter AQ command failed =0x%x\n", 1789 __func__, pf->hw.aq.asq_last_status); 1790 goto command_write_done; 1791 } 1792#ifdef CONFIG_I40E_DCB 1793 pf->dcbx_cap = DCB_CAP_DCBX_HOST | 1794 DCB_CAP_DCBX_VER_IEEE; 1795#endif /* CONFIG_I40E_DCB */ 1796 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) { 1797 int ret; 1798 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw, 1799 pf->hw.mac.addr, 1800 I40E_ETH_P_LLDP, 0, 1801 pf->vsi[pf->lan_vsi]->seid, 1802 0, false, NULL, NULL); 1803 if (ret) { 1804 dev_info(&pf->pdev->dev, 1805 "%s: Remove Control Packet Filter AQ command failed =0x%x\n", 1806 __func__, pf->hw.aq.asq_last_status); 1807 /* Continue and start FW LLDP anyways */ 1808 } 1809 1810 ret = i40e_aq_start_lldp(&pf->hw, NULL); 1811 if (ret) { 1812 dev_info(&pf->pdev->dev, 1813 "Start LLDP AQ command failed =0x%x\n", 1814 pf->hw.aq.asq_last_status); 1815 goto command_write_done; 1816 } 1817#ifdef CONFIG_I40E_DCB 1818 pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED | 1819 DCB_CAP_DCBX_VER_IEEE; 1820#endif /* CONFIG_I40E_DCB */ 1821 } else if (strncmp(&cmd_buf[5], 1822 "get local", 9) == 0) { 1823 u16 llen, rlen; 1824 int ret; 1825 u8 *buff; 1826 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL); 1827 if (!buff) 1828 goto command_write_done; 1829 1830 ret = i40e_aq_get_lldp_mib(&pf->hw, 0, 1831 I40E_AQ_LLDP_MIB_LOCAL, 1832 buff, I40E_LLDPDU_SIZE, 1833 &llen, &rlen, NULL); 1834 if (ret) { 1835 dev_info(&pf->pdev->dev, 1836 "Get LLDP MIB (local) AQ command failed =0x%x\n", 1837 pf->hw.aq.asq_last_status); 1838 kfree(buff); 1839 buff = NULL; 1840 goto command_write_done; 1841 } 1842 dev_info(&pf->pdev->dev, "LLDP MIB (local)\n"); 1843 print_hex_dump(KERN_INFO, "LLDP MIB (local): ", 1844 DUMP_PREFIX_OFFSET, 16, 1, 1845 buff, I40E_LLDPDU_SIZE, true); 1846 kfree(buff); 1847 buff = NULL; 1848 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) { 1849 u16 llen, rlen; 1850 int ret; 1851 u8 *buff; 1852 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL); 1853 if (!buff) 1854 goto command_write_done; 1855 1856 ret = i40e_aq_get_lldp_mib(&pf->hw, 1857 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE, 1858 I40E_AQ_LLDP_MIB_REMOTE, 1859 buff, I40E_LLDPDU_SIZE, 1860 &llen, &rlen, NULL); 1861 if (ret) { 1862 dev_info(&pf->pdev->dev, 1863 "Get LLDP MIB (remote) AQ command failed =0x%x\n", 1864 pf->hw.aq.asq_last_status); 1865 kfree(buff); 1866 buff = NULL; 1867 goto command_write_done; 1868 } 1869 dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n"); 1870 print_hex_dump(KERN_INFO, "LLDP MIB (remote): ", 1871 DUMP_PREFIX_OFFSET, 16, 1, 1872 buff, I40E_LLDPDU_SIZE, true); 1873 kfree(buff); 1874 buff = NULL; 1875 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) { 1876 int ret; 1877 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw, 1878 true, NULL); 1879 if (ret) { 1880 dev_info(&pf->pdev->dev, 1881 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n", 1882 pf->hw.aq.asq_last_status); 1883 goto command_write_done; 1884 } 1885 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) { 1886 int ret; 1887 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw, 1888 false, NULL); 1889 if (ret) { 1890 dev_info(&pf->pdev->dev, 1891 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n", 1892 pf->hw.aq.asq_last_status); 1893 goto command_write_done; 1894 } 1895 } 1896 } else if (strncmp(cmd_buf, "nvm read", 8) == 0) { 1897 u16 buffer_len, bytes; 1898 u16 module; 1899 u32 offset; 1900 u16 *buff; 1901 int ret; 1902 1903 cnt = sscanf(&cmd_buf[8], "%hx %x %hx", 1904 &module, &offset, &buffer_len); 1905 if (cnt == 0) { 1906 module = 0; 1907 offset = 0; 1908 buffer_len = 0; 1909 } else if (cnt == 1) { 1910 offset = 0; 1911 buffer_len = 0; 1912 } else if (cnt == 2) { 1913 buffer_len = 0; 1914 } else if (cnt > 3) { 1915 dev_info(&pf->pdev->dev, 1916 "nvm read: bad command string, cnt=%d\n", cnt); 1917 goto command_write_done; 1918 } 1919 1920 /* set the max length */ 1921 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2); 1922 1923 bytes = 2 * buffer_len; 1924 1925 /* read at least 1k bytes, no more than 4kB */ 1926 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE); 1927 buff = kzalloc(bytes, GFP_KERNEL); 1928 if (!buff) 1929 goto command_write_done; 1930 1931 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ); 1932 if (ret) { 1933 dev_info(&pf->pdev->dev, 1934 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1935 ret, pf->hw.aq.asq_last_status); 1936 kfree(buff); 1937 goto command_write_done; 1938 } 1939 1940 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset), 1941 bytes, (u8 *)buff, true, NULL); 1942 i40e_release_nvm(&pf->hw); 1943 if (ret) { 1944 dev_info(&pf->pdev->dev, 1945 "Read NVM AQ failed err=%d status=0x%x\n", 1946 ret, pf->hw.aq.asq_last_status); 1947 } else { 1948 dev_info(&pf->pdev->dev, 1949 "Read NVM module=0x%x offset=0x%x words=%d\n", 1950 module, offset, buffer_len); 1951 if (bytes) 1952 print_hex_dump(KERN_INFO, "NVM Dump: ", 1953 DUMP_PREFIX_OFFSET, 16, 2, 1954 buff, bytes, true); 1955 } 1956 kfree(buff); 1957 buff = NULL; 1958 } else { 1959 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf); 1960 dev_info(&pf->pdev->dev, "available commands\n"); 1961 dev_info(&pf->pdev->dev, " add vsi [relay_seid]\n"); 1962 dev_info(&pf->pdev->dev, " del vsi [vsi_seid]\n"); 1963 dev_info(&pf->pdev->dev, " add relay <uplink_seid> <vsi_seid>\n"); 1964 dev_info(&pf->pdev->dev, " del relay <relay_seid>\n"); 1965 dev_info(&pf->pdev->dev, " add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n"); 1966 dev_info(&pf->pdev->dev, " del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n"); 1967 dev_info(&pf->pdev->dev, " add pvid <vsi_seid> <vid>\n"); 1968 dev_info(&pf->pdev->dev, " del pvid <vsi_seid>\n"); 1969 dev_info(&pf->pdev->dev, " dump switch\n"); 1970 dev_info(&pf->pdev->dev, " dump vsi [seid]\n"); 1971 dev_info(&pf->pdev->dev, " dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n"); 1972 dev_info(&pf->pdev->dev, " dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n"); 1973 dev_info(&pf->pdev->dev, " dump desc aq\n"); 1974 dev_info(&pf->pdev->dev, " dump stats\n"); 1975 dev_info(&pf->pdev->dev, " dump reset stats\n"); 1976 dev_info(&pf->pdev->dev, " msg_enable [level]\n"); 1977 dev_info(&pf->pdev->dev, " read <reg>\n"); 1978 dev_info(&pf->pdev->dev, " write <reg> <value>\n"); 1979 dev_info(&pf->pdev->dev, " clear_stats vsi [seid]\n"); 1980 dev_info(&pf->pdev->dev, " clear_stats pf\n"); 1981 dev_info(&pf->pdev->dev, " pfr\n"); 1982 dev_info(&pf->pdev->dev, " corer\n"); 1983 dev_info(&pf->pdev->dev, " globr\n"); 1984 dev_info(&pf->pdev->dev, " send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n"); 1985 dev_info(&pf->pdev->dev, " send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n"); 1986 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"); 1987 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"); 1988 dev_info(&pf->pdev->dev, " fd-atr off\n"); 1989 dev_info(&pf->pdev->dev, " fd-atr on\n"); 1990 dev_info(&pf->pdev->dev, " fd current cnt"); 1991 dev_info(&pf->pdev->dev, " lldp start\n"); 1992 dev_info(&pf->pdev->dev, " lldp stop\n"); 1993 dev_info(&pf->pdev->dev, " lldp get local\n"); 1994 dev_info(&pf->pdev->dev, " lldp get remote\n"); 1995 dev_info(&pf->pdev->dev, " lldp event on\n"); 1996 dev_info(&pf->pdev->dev, " lldp event off\n"); 1997 dev_info(&pf->pdev->dev, " nvm read [module] [word_offset] [word_count]\n"); 1998 } 1999 2000command_write_done: 2001 kfree(cmd_buf); 2002 cmd_buf = NULL; 2003 return count; 2004} 2005 2006static const struct file_operations i40e_dbg_command_fops = { 2007 .owner = THIS_MODULE, 2008 .open = simple_open, 2009 .read = i40e_dbg_command_read, 2010 .write = i40e_dbg_command_write, 2011}; 2012 2013/************************************************************** 2014 * netdev_ops 2015 * The netdev_ops entry in debugfs is for giving the driver commands 2016 * to be executed from the netdev operations. 2017 **************************************************************/ 2018static char i40e_dbg_netdev_ops_buf[256] = "hello world"; 2019 2020/** 2021 * i40e_dbg_netdev_ops - read for netdev_ops datum 2022 * @filp: the opened file 2023 * @buffer: where to write the data for the user to read 2024 * @count: the size of the user's buffer 2025 * @ppos: file position offset 2026 **/ 2027static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer, 2028 size_t count, loff_t *ppos) 2029{ 2030 struct i40e_pf *pf = filp->private_data; 2031 int bytes_not_copied; 2032 int buf_size = 256; 2033 char *buf; 2034 int len; 2035 2036 /* don't allow partal reads */ 2037 if (*ppos != 0) 2038 return 0; 2039 if (count < buf_size) 2040 return -ENOSPC; 2041 2042 buf = kzalloc(buf_size, GFP_KERNEL); 2043 if (!buf) 2044 return -ENOSPC; 2045 2046 len = snprintf(buf, buf_size, "%s: %s\n", 2047 pf->vsi[pf->lan_vsi]->netdev->name, 2048 i40e_dbg_netdev_ops_buf); 2049 2050 bytes_not_copied = copy_to_user(buffer, buf, len); 2051 kfree(buf); 2052 2053 if (bytes_not_copied < 0) 2054 return bytes_not_copied; 2055 2056 *ppos = len; 2057 return len; 2058} 2059 2060/** 2061 * i40e_dbg_netdev_ops_write - write into netdev_ops datum 2062 * @filp: the opened file 2063 * @buffer: where to find the user's data 2064 * @count: the length of the user's data 2065 * @ppos: file position offset 2066 **/ 2067static ssize_t i40e_dbg_netdev_ops_write(struct file *filp, 2068 const char __user *buffer, 2069 size_t count, loff_t *ppos) 2070{ 2071 struct i40e_pf *pf = filp->private_data; 2072 int bytes_not_copied; 2073 struct i40e_vsi *vsi; 2074 char *buf_tmp; 2075 int vsi_seid; 2076 int i, cnt; 2077 2078 /* don't allow partial writes */ 2079 if (*ppos != 0) 2080 return 0; 2081 if (count >= sizeof(i40e_dbg_netdev_ops_buf)) 2082 return -ENOSPC; 2083 2084 memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf)); 2085 bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf, 2086 buffer, count); 2087 if (bytes_not_copied < 0) 2088 return bytes_not_copied; 2089 else if (bytes_not_copied > 0) 2090 count -= bytes_not_copied; 2091 i40e_dbg_netdev_ops_buf[count] = '\0'; 2092 2093 buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n'); 2094 if (buf_tmp) { 2095 *buf_tmp = '\0'; 2096 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1; 2097 } 2098 2099 if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) { 2100 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid); 2101 if (cnt != 1) { 2102 dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n"); 2103 goto netdev_ops_write_done; 2104 } 2105 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2106 if (!vsi) { 2107 dev_info(&pf->pdev->dev, 2108 "tx_timeout: VSI %d not found\n", vsi_seid); 2109 } else if (!vsi->netdev) { 2110 dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n", 2111 vsi_seid); 2112 } else if (test_bit(__I40E_DOWN, &vsi->state)) { 2113 dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n", 2114 vsi_seid); 2115 } else if (rtnl_trylock()) { 2116 vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev); 2117 rtnl_unlock(); 2118 dev_info(&pf->pdev->dev, "tx_timeout called\n"); 2119 } else { 2120 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2121 } 2122 } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) { 2123 int mtu; 2124 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i", 2125 &vsi_seid, &mtu); 2126 if (cnt != 2) { 2127 dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n"); 2128 goto netdev_ops_write_done; 2129 } 2130 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2131 if (!vsi) { 2132 dev_info(&pf->pdev->dev, 2133 "change_mtu: VSI %d not found\n", vsi_seid); 2134 } else if (!vsi->netdev) { 2135 dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n", 2136 vsi_seid); 2137 } else if (rtnl_trylock()) { 2138 vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev, 2139 mtu); 2140 rtnl_unlock(); 2141 dev_info(&pf->pdev->dev, "change_mtu called\n"); 2142 } else { 2143 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2144 } 2145 2146 } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) { 2147 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid); 2148 if (cnt != 1) { 2149 dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n"); 2150 goto netdev_ops_write_done; 2151 } 2152 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2153 if (!vsi) { 2154 dev_info(&pf->pdev->dev, 2155 "set_rx_mode: VSI %d not found\n", vsi_seid); 2156 } else if (!vsi->netdev) { 2157 dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n", 2158 vsi_seid); 2159 } else if (rtnl_trylock()) { 2160 vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev); 2161 rtnl_unlock(); 2162 dev_info(&pf->pdev->dev, "set_rx_mode called\n"); 2163 } else { 2164 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2165 } 2166 2167 } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) { 2168 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid); 2169 if (cnt != 1) { 2170 dev_info(&pf->pdev->dev, "napi <vsi_seid>\n"); 2171 goto netdev_ops_write_done; 2172 } 2173 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2174 if (!vsi) { 2175 dev_info(&pf->pdev->dev, "napi: VSI %d not found\n", 2176 vsi_seid); 2177 } else if (!vsi->netdev) { 2178 dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n", 2179 vsi_seid); 2180 } else { 2181 for (i = 0; i < vsi->num_q_vectors; i++) 2182 napi_schedule(&vsi->q_vectors[i]->napi); 2183 dev_info(&pf->pdev->dev, "napi called\n"); 2184 } 2185 } else { 2186 dev_info(&pf->pdev->dev, "unknown command '%s'\n", 2187 i40e_dbg_netdev_ops_buf); 2188 dev_info(&pf->pdev->dev, "available commands\n"); 2189 dev_info(&pf->pdev->dev, " tx_timeout <vsi_seid>\n"); 2190 dev_info(&pf->pdev->dev, " change_mtu <vsi_seid> <mtu>\n"); 2191 dev_info(&pf->pdev->dev, " set_rx_mode <vsi_seid>\n"); 2192 dev_info(&pf->pdev->dev, " napi <vsi_seid>\n"); 2193 } 2194netdev_ops_write_done: 2195 return count; 2196} 2197 2198static const struct file_operations i40e_dbg_netdev_ops_fops = { 2199 .owner = THIS_MODULE, 2200 .open = simple_open, 2201 .read = i40e_dbg_netdev_ops_read, 2202 .write = i40e_dbg_netdev_ops_write, 2203}; 2204 2205/** 2206 * i40e_dbg_pf_init - setup the debugfs directory for the pf 2207 * @pf: the pf that is starting up 2208 **/ 2209void i40e_dbg_pf_init(struct i40e_pf *pf) 2210{ 2211 struct dentry *pfile; 2212 const char *name = pci_name(pf->pdev); 2213 const struct device *dev = &pf->pdev->dev; 2214 2215 pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root); 2216 if (!pf->i40e_dbg_pf) 2217 return; 2218 2219 pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf, 2220 &i40e_dbg_command_fops); 2221 if (!pfile) 2222 goto create_failed; 2223 2224 pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf, 2225 &i40e_dbg_dump_fops); 2226 if (!pfile) 2227 goto create_failed; 2228 2229 pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf, 2230 &i40e_dbg_netdev_ops_fops); 2231 if (!pfile) 2232 goto create_failed; 2233 2234 return; 2235 2236create_failed: 2237 dev_info(dev, "debugfs dir/file for %s failed\n", name); 2238 debugfs_remove_recursive(pf->i40e_dbg_pf); 2239 return; 2240} 2241 2242/** 2243 * i40e_dbg_pf_exit - clear out the pf's debugfs entries 2244 * @pf: the pf that is stopping 2245 **/ 2246void i40e_dbg_pf_exit(struct i40e_pf *pf) 2247{ 2248 debugfs_remove_recursive(pf->i40e_dbg_pf); 2249 pf->i40e_dbg_pf = NULL; 2250 2251 kfree(i40e_dbg_dump_buf); 2252 i40e_dbg_dump_buf = NULL; 2253} 2254 2255/** 2256 * i40e_dbg_init - start up debugfs for the driver 2257 **/ 2258void i40e_dbg_init(void) 2259{ 2260 i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL); 2261 if (!i40e_dbg_root) 2262 pr_info("init of debugfs failed\n"); 2263} 2264 2265/** 2266 * i40e_dbg_exit - clean out the driver's debugfs entries 2267 **/ 2268void i40e_dbg_exit(void) 2269{ 2270 debugfs_remove_recursive(i40e_dbg_root); 2271 i40e_dbg_root = NULL; 2272} 2273 2274#endif /* CONFIG_DEBUG_FS */ 2275