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 34 static 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 **/ 41 static 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 **/ 60 static 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 **************************************************************/ 81 static char *i40e_dbg_dump_buf; 82 static ssize_t i40e_dbg_dump_data_len; 83 static 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 **/ 92 static 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 **/ 120 static 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 **/ 148 static 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 } 299 300 write_exit: 301 if (!seid_found) 302 dev_info(&pf->pdev->dev, "unknown seid %ld\n", seid); 303 304 return count; 305 } 306 307 static 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 **************************************************************/ 321 static 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 **/ 330 static 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 **/ 368 static 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 } 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 struct i40e_tx_desc *txd; 756 union i40e_rx_desc *rxd; 757 struct i40e_ring ring; 758 struct i40e_vsi *vsi; 759 int i; 760 761 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 762 if (!vsi) { 763 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid); 764 return; 765 } 766 if (ring_id >= vsi->num_queue_pairs || ring_id < 0) { 767 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id); 768 return; 769 } 770 if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) { 771 dev_info(&pf->pdev->dev, 772 "descriptor rings have not been allocated for vsi %d\n", 773 vsi_seid); 774 return; 775 } 776 if (is_rx_ring) 777 ring = *vsi->rx_rings[ring_id]; 778 else 779 ring = *vsi->tx_rings[ring_id]; 780 if (cnt == 2) { 781 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n", 782 vsi_seid, is_rx_ring ? "rx" : "tx", ring_id); 783 for (i = 0; i < ring.count; i++) { 784 if (!is_rx_ring) { 785 txd = I40E_TX_DESC(&ring, i); 786 dev_info(&pf->pdev->dev, 787 " d[%03i] = 0x%016llx 0x%016llx\n", 788 i, txd->buffer_addr, 789 txd->cmd_type_offset_bsz); 790 } else if (sizeof(union i40e_rx_desc) == 791 sizeof(union i40e_16byte_rx_desc)) { 792 rxd = I40E_RX_DESC(&ring, i); 793 dev_info(&pf->pdev->dev, 794 " d[%03i] = 0x%016llx 0x%016llx\n", 795 i, rxd->read.pkt_addr, 796 rxd->read.hdr_addr); 797 } else { 798 rxd = I40E_RX_DESC(&ring, i); 799 dev_info(&pf->pdev->dev, 800 " d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n", 801 i, rxd->read.pkt_addr, 802 rxd->read.hdr_addr, 803 rxd->read.rsvd1, rxd->read.rsvd2); 804 } 805 } 806 } else if (cnt == 3) { 807 if (desc_n >= ring.count || desc_n < 0) { 808 dev_info(&pf->pdev->dev, 809 "descriptor %d not found\n", desc_n); 810 return; 811 } 812 if (!is_rx_ring) { 813 txd = I40E_TX_DESC(&ring, desc_n); 814 dev_info(&pf->pdev->dev, 815 "vsi = %02i tx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n", 816 vsi_seid, ring_id, desc_n, 817 txd->buffer_addr, txd->cmd_type_offset_bsz); 818 } else if (sizeof(union i40e_rx_desc) == 819 sizeof(union i40e_16byte_rx_desc)) { 820 rxd = I40E_RX_DESC(&ring, desc_n); 821 dev_info(&pf->pdev->dev, 822 "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n", 823 vsi_seid, ring_id, desc_n, 824 rxd->read.pkt_addr, rxd->read.hdr_addr); 825 } else { 826 rxd = I40E_RX_DESC(&ring, desc_n); 827 dev_info(&pf->pdev->dev, 828 "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n", 829 vsi_seid, ring_id, desc_n, 830 rxd->read.pkt_addr, rxd->read.hdr_addr, 831 rxd->read.rsvd1, rxd->read.rsvd2); 832 } 833 } else { 834 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n"); 835 } 836 } 837 838 /** 839 * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum 840 * @pf: the i40e_pf created in command write 841 **/ 842 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf) 843 { 844 int i; 845 846 for (i = 0; i < pf->num_alloc_vsi; i++) 847 if (pf->vsi[i]) 848 dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n", 849 i, pf->vsi[i]->seid); 850 } 851 852 /** 853 * i40e_dbg_dump_stats - handles dump stats write into command datum 854 * @pf: the i40e_pf created in command write 855 * @estats: the eth stats structure to be dumped 856 **/ 857 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf, 858 struct i40e_eth_stats *estats) 859 { 860 dev_info(&pf->pdev->dev, " ethstats:\n"); 861 dev_info(&pf->pdev->dev, 862 " rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n", 863 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast); 864 dev_info(&pf->pdev->dev, 865 " rx_broadcast = \t%lld \trx_discards = \t\t%lld\n", 866 estats->rx_broadcast, estats->rx_discards); 867 dev_info(&pf->pdev->dev, 868 " rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n", 869 estats->rx_unknown_protocol, estats->tx_bytes); 870 dev_info(&pf->pdev->dev, 871 " tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n", 872 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast); 873 dev_info(&pf->pdev->dev, 874 " tx_discards = \t%lld \ttx_errors = \t\t%lld\n", 875 estats->tx_discards, estats->tx_errors); 876 } 877 878 /** 879 * i40e_dbg_dump_stats - handles dump stats write into command datum 880 * @pf: the i40e_pf created in command write 881 * @stats: the stats structure to be dumped 882 **/ 883 static void i40e_dbg_dump_stats(struct i40e_pf *pf, 884 struct i40e_hw_port_stats *stats) 885 { 886 int i; 887 888 dev_info(&pf->pdev->dev, " stats:\n"); 889 dev_info(&pf->pdev->dev, 890 " crc_errors = \t\t%lld \tillegal_bytes = \t%lld \terror_bytes = \t\t%lld\n", 891 stats->crc_errors, stats->illegal_bytes, stats->error_bytes); 892 dev_info(&pf->pdev->dev, 893 " mac_local_faults = \t%lld \tmac_remote_faults = \t%lld \trx_length_errors = \t%lld\n", 894 stats->mac_local_faults, stats->mac_remote_faults, 895 stats->rx_length_errors); 896 dev_info(&pf->pdev->dev, 897 " link_xon_rx = \t\t%lld \tlink_xoff_rx = \t\t%lld \tlink_xon_tx = \t\t%lld\n", 898 stats->link_xon_rx, stats->link_xoff_rx, stats->link_xon_tx); 899 dev_info(&pf->pdev->dev, 900 " link_xoff_tx = \t\t%lld \trx_size_64 = \t\t%lld \trx_size_127 = \t\t%lld\n", 901 stats->link_xoff_tx, stats->rx_size_64, stats->rx_size_127); 902 dev_info(&pf->pdev->dev, 903 " rx_size_255 = \t\t%lld \trx_size_511 = \t\t%lld \trx_size_1023 = \t\t%lld\n", 904 stats->rx_size_255, stats->rx_size_511, stats->rx_size_1023); 905 dev_info(&pf->pdev->dev, 906 " rx_size_big = \t\t%lld \trx_undersize = \t\t%lld \trx_jabber = \t\t%lld\n", 907 stats->rx_size_big, stats->rx_undersize, stats->rx_jabber); 908 dev_info(&pf->pdev->dev, 909 " rx_fragments = \t\t%lld \trx_oversize = \t\t%lld \ttx_size_64 = \t\t%lld\n", 910 stats->rx_fragments, stats->rx_oversize, stats->tx_size_64); 911 dev_info(&pf->pdev->dev, 912 " tx_size_127 = \t\t%lld \ttx_size_255 = \t\t%lld \ttx_size_511 = \t\t%lld\n", 913 stats->tx_size_127, stats->tx_size_255, stats->tx_size_511); 914 dev_info(&pf->pdev->dev, 915 " tx_size_1023 = \t\t%lld \ttx_size_big = \t\t%lld \tmac_short_packet_dropped = \t%lld\n", 916 stats->tx_size_1023, stats->tx_size_big, 917 stats->mac_short_packet_dropped); 918 for (i = 0; i < 8; i += 4) { 919 dev_info(&pf->pdev->dev, 920 " priority_xon_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 921 i, stats->priority_xon_rx[i], 922 i+1, stats->priority_xon_rx[i+1], 923 i+2, stats->priority_xon_rx[i+2], 924 i+3, stats->priority_xon_rx[i+3]); 925 } 926 for (i = 0; i < 8; i += 4) { 927 dev_info(&pf->pdev->dev, 928 " priority_xoff_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 929 i, stats->priority_xoff_rx[i], 930 i+1, stats->priority_xoff_rx[i+1], 931 i+2, stats->priority_xoff_rx[i+2], 932 i+3, stats->priority_xoff_rx[i+3]); 933 } 934 for (i = 0; i < 8; i += 4) { 935 dev_info(&pf->pdev->dev, 936 " priority_xon_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 937 i, stats->priority_xon_tx[i], 938 i+1, stats->priority_xon_tx[i+1], 939 i+2, stats->priority_xon_tx[i+2], 940 i+3, stats->priority_xon_rx[i+3]); 941 } 942 for (i = 0; i < 8; i += 4) { 943 dev_info(&pf->pdev->dev, 944 " priority_xoff_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 945 i, stats->priority_xoff_tx[i], 946 i+1, stats->priority_xoff_tx[i+1], 947 i+2, stats->priority_xoff_tx[i+2], 948 i+3, stats->priority_xoff_tx[i+3]); 949 } 950 for (i = 0; i < 8; i += 4) { 951 dev_info(&pf->pdev->dev, 952 " priority_xon_2_xoff[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 953 i, stats->priority_xon_2_xoff[i], 954 i+1, stats->priority_xon_2_xoff[i+1], 955 i+2, stats->priority_xon_2_xoff[i+2], 956 i+3, stats->priority_xon_2_xoff[i+3]); 957 } 958 959 i40e_dbg_dump_eth_stats(pf, &stats->eth); 960 } 961 962 /** 963 * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb 964 * @pf: the i40e_pf created in command write 965 * @seid: the seid the user put in 966 **/ 967 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid) 968 { 969 struct i40e_veb *veb; 970 971 if ((seid < I40E_BASE_VEB_SEID) || 972 (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) { 973 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid); 974 return; 975 } 976 977 veb = i40e_dbg_find_veb(pf, seid); 978 if (!veb) { 979 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid); 980 return; 981 } 982 dev_info(&pf->pdev->dev, 983 "veb idx=%d,%d stats_ic=%d seid=%d uplink=%d\n", 984 veb->idx, veb->veb_idx, veb->stats_idx, veb->seid, 985 veb->uplink_seid); 986 i40e_dbg_dump_eth_stats(pf, &veb->stats); 987 } 988 989 /** 990 * i40e_dbg_dump_veb_all - dumps all known veb's stats 991 * @pf: the i40e_pf created in command write 992 **/ 993 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf) 994 { 995 struct i40e_veb *veb; 996 int i; 997 998 for (i = 0; i < I40E_MAX_VEB; i++) { 999 veb = pf->veb[i]; 1000 if (veb) 1001 i40e_dbg_dump_veb_seid(pf, veb->seid); 1002 } 1003 } 1004 1005 /** 1006 * i40e_dbg_cmd_fd_ctrl - Enable/disable FD sideband/ATR 1007 * @pf: the pf that would be altered 1008 * @flag: flag that needs enabling or disabling 1009 * @enable: Enable/disable FD SD/ATR 1010 **/ 1011 static void i40e_dbg_cmd_fd_ctrl(struct i40e_pf *pf, u64 flag, bool enable) 1012 { 1013 if (enable) { 1014 pf->flags |= flag; 1015 } else { 1016 pf->flags &= ~flag; 1017 pf->auto_disable_flags |= flag; 1018 } 1019 dev_info(&pf->pdev->dev, "requesting a pf reset\n"); 1020 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED)); 1021 } 1022 1023 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4) 1024 /** 1025 * i40e_dbg_command_write - write into command datum 1026 * @filp: the opened file 1027 * @buffer: where to find the user's data 1028 * @count: the length of the user's data 1029 * @ppos: file position offset 1030 **/ 1031 static ssize_t i40e_dbg_command_write(struct file *filp, 1032 const char __user *buffer, 1033 size_t count, loff_t *ppos) 1034 { 1035 struct i40e_pf *pf = filp->private_data; 1036 char *cmd_buf, *cmd_buf_tmp; 1037 int bytes_not_copied; 1038 struct i40e_vsi *vsi; 1039 int vsi_seid; 1040 int veb_seid; 1041 int cnt; 1042 1043 /* don't allow partial writes */ 1044 if (*ppos != 0) 1045 return 0; 1046 1047 cmd_buf = kzalloc(count + 1, GFP_KERNEL); 1048 if (!cmd_buf) 1049 return count; 1050 bytes_not_copied = copy_from_user(cmd_buf, buffer, count); 1051 if (bytes_not_copied < 0) 1052 return bytes_not_copied; 1053 if (bytes_not_copied > 0) 1054 count -= bytes_not_copied; 1055 cmd_buf[count] = '\0'; 1056 1057 cmd_buf_tmp = strchr(cmd_buf, '\n'); 1058 if (cmd_buf_tmp) { 1059 *cmd_buf_tmp = '\0'; 1060 count = cmd_buf_tmp - cmd_buf + 1; 1061 } 1062 1063 if (strncmp(cmd_buf, "add vsi", 7) == 0) { 1064 vsi_seid = -1; 1065 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid); 1066 if (cnt == 0) { 1067 /* default to PF VSI */ 1068 vsi_seid = pf->vsi[pf->lan_vsi]->seid; 1069 } else if (vsi_seid < 0) { 1070 dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n", 1071 vsi_seid); 1072 goto command_write_done; 1073 } 1074 1075 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0); 1076 if (vsi) 1077 dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n", 1078 vsi->seid, vsi->uplink_seid); 1079 else 1080 dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf); 1081 1082 } else if (strncmp(cmd_buf, "del vsi", 7) == 0) { 1083 sscanf(&cmd_buf[7], "%i", &vsi_seid); 1084 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1085 if (!vsi) { 1086 dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n", 1087 vsi_seid); 1088 goto command_write_done; 1089 } 1090 1091 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid); 1092 i40e_vsi_release(vsi); 1093 1094 } else if (strncmp(cmd_buf, "add relay", 9) == 0) { 1095 struct i40e_veb *veb; 1096 int uplink_seid, i; 1097 1098 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid); 1099 if (cnt != 2) { 1100 dev_info(&pf->pdev->dev, 1101 "add relay: bad command string, cnt=%d\n", 1102 cnt); 1103 goto command_write_done; 1104 } else if (uplink_seid < 0) { 1105 dev_info(&pf->pdev->dev, 1106 "add relay %d: bad uplink seid\n", 1107 uplink_seid); 1108 goto command_write_done; 1109 } 1110 1111 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1112 if (!vsi) { 1113 dev_info(&pf->pdev->dev, 1114 "add relay: VSI %d not found\n", vsi_seid); 1115 goto command_write_done; 1116 } 1117 1118 for (i = 0; i < I40E_MAX_VEB; i++) 1119 if (pf->veb[i] && pf->veb[i]->seid == uplink_seid) 1120 break; 1121 if (i >= I40E_MAX_VEB && uplink_seid != 0 && 1122 uplink_seid != pf->mac_seid) { 1123 dev_info(&pf->pdev->dev, 1124 "add relay: relay uplink %d not found\n", 1125 uplink_seid); 1126 goto command_write_done; 1127 } 1128 1129 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid, 1130 vsi->tc_config.enabled_tc); 1131 if (veb) 1132 dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid); 1133 else 1134 dev_info(&pf->pdev->dev, "add relay failed\n"); 1135 1136 } else if (strncmp(cmd_buf, "del relay", 9) == 0) { 1137 int i; 1138 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid); 1139 if (cnt != 1) { 1140 dev_info(&pf->pdev->dev, 1141 "del relay: bad command string, cnt=%d\n", 1142 cnt); 1143 goto command_write_done; 1144 } else if (veb_seid < 0) { 1145 dev_info(&pf->pdev->dev, 1146 "del relay %d: bad relay seid\n", veb_seid); 1147 goto command_write_done; 1148 } 1149 1150 /* find the veb */ 1151 for (i = 0; i < I40E_MAX_VEB; i++) 1152 if (pf->veb[i] && pf->veb[i]->seid == veb_seid) 1153 break; 1154 if (i >= I40E_MAX_VEB) { 1155 dev_info(&pf->pdev->dev, 1156 "del relay: relay %d not found\n", veb_seid); 1157 goto command_write_done; 1158 } 1159 1160 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid); 1161 i40e_veb_release(pf->veb[i]); 1162 1163 } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) { 1164 struct i40e_mac_filter *f; 1165 int vlan = 0; 1166 u8 ma[6]; 1167 int ret; 1168 1169 cnt = sscanf(&cmd_buf[11], 1170 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i", 1171 &vsi_seid, 1172 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5], 1173 &vlan); 1174 if (cnt == 7) { 1175 vlan = 0; 1176 } else if (cnt != 8) { 1177 dev_info(&pf->pdev->dev, 1178 "add macaddr: bad command string, cnt=%d\n", 1179 cnt); 1180 goto command_write_done; 1181 } 1182 1183 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1184 if (!vsi) { 1185 dev_info(&pf->pdev->dev, 1186 "add macaddr: VSI %d not found\n", vsi_seid); 1187 goto command_write_done; 1188 } 1189 1190 f = i40e_add_filter(vsi, ma, vlan, false, false); 1191 ret = i40e_sync_vsi_filters(vsi); 1192 if (f && !ret) 1193 dev_info(&pf->pdev->dev, 1194 "add macaddr: %pM vlan=%d added to VSI %d\n", 1195 ma, vlan, vsi_seid); 1196 else 1197 dev_info(&pf->pdev->dev, 1198 "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n", 1199 ma, vlan, vsi_seid, f, ret); 1200 1201 } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) { 1202 int vlan = 0; 1203 u8 ma[6]; 1204 int ret; 1205 1206 cnt = sscanf(&cmd_buf[11], 1207 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i", 1208 &vsi_seid, 1209 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5], 1210 &vlan); 1211 if (cnt == 7) { 1212 vlan = 0; 1213 } else if (cnt != 8) { 1214 dev_info(&pf->pdev->dev, 1215 "del macaddr: bad command string, cnt=%d\n", 1216 cnt); 1217 goto command_write_done; 1218 } 1219 1220 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1221 if (!vsi) { 1222 dev_info(&pf->pdev->dev, 1223 "del macaddr: VSI %d not found\n", vsi_seid); 1224 goto command_write_done; 1225 } 1226 1227 i40e_del_filter(vsi, ma, vlan, false, false); 1228 ret = i40e_sync_vsi_filters(vsi); 1229 if (!ret) 1230 dev_info(&pf->pdev->dev, 1231 "del macaddr: %pM vlan=%d removed from VSI %d\n", 1232 ma, vlan, vsi_seid); 1233 else 1234 dev_info(&pf->pdev->dev, 1235 "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n", 1236 ma, vlan, vsi_seid, ret); 1237 1238 } else if (strncmp(cmd_buf, "add pvid", 8) == 0) { 1239 i40e_status ret; 1240 u16 vid; 1241 int v; 1242 1243 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v); 1244 if (cnt != 2) { 1245 dev_info(&pf->pdev->dev, 1246 "add pvid: bad command string, cnt=%d\n", 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, "add pvid: VSI %d not found\n", 1253 vsi_seid); 1254 goto command_write_done; 1255 } 1256 1257 vid = (unsigned)v; 1258 ret = i40e_vsi_add_pvid(vsi, vid); 1259 if (!ret) 1260 dev_info(&pf->pdev->dev, 1261 "add pvid: %d added to VSI %d\n", 1262 vid, vsi_seid); 1263 else 1264 dev_info(&pf->pdev->dev, 1265 "add pvid: %d to VSI %d failed, ret=%d\n", 1266 vid, vsi_seid, ret); 1267 1268 } else if (strncmp(cmd_buf, "del pvid", 8) == 0) { 1269 1270 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1271 if (cnt != 1) { 1272 dev_info(&pf->pdev->dev, 1273 "del pvid: bad command string, cnt=%d\n", 1274 cnt); 1275 goto command_write_done; 1276 } 1277 1278 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1279 if (!vsi) { 1280 dev_info(&pf->pdev->dev, 1281 "del pvid: VSI %d not found\n", vsi_seid); 1282 goto command_write_done; 1283 } 1284 1285 i40e_vsi_remove_pvid(vsi); 1286 dev_info(&pf->pdev->dev, 1287 "del pvid: removed from VSI %d\n", vsi_seid); 1288 1289 } else if (strncmp(cmd_buf, "dump", 4) == 0) { 1290 if (strncmp(&cmd_buf[5], "switch", 6) == 0) { 1291 i40e_fetch_switch_configuration(pf, true); 1292 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) { 1293 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1294 if (cnt > 0) 1295 i40e_dbg_dump_vsi_seid(pf, vsi_seid); 1296 else 1297 i40e_dbg_dump_vsi_no_seid(pf); 1298 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) { 1299 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1300 if (cnt > 0) 1301 i40e_dbg_dump_veb_seid(pf, vsi_seid); 1302 else 1303 i40e_dbg_dump_veb_all(pf); 1304 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) { 1305 int ring_id, desc_n; 1306 if (strncmp(&cmd_buf[10], "rx", 2) == 0) { 1307 cnt = sscanf(&cmd_buf[12], "%i %i %i", 1308 &vsi_seid, &ring_id, &desc_n); 1309 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id, 1310 desc_n, pf, true); 1311 } else if (strncmp(&cmd_buf[10], "tx", 2) 1312 == 0) { 1313 cnt = sscanf(&cmd_buf[12], "%i %i %i", 1314 &vsi_seid, &ring_id, &desc_n); 1315 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id, 1316 desc_n, pf, false); 1317 } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) { 1318 i40e_dbg_dump_aq_desc(pf); 1319 } else { 1320 dev_info(&pf->pdev->dev, 1321 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n"); 1322 dev_info(&pf->pdev->dev, 1323 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n"); 1324 dev_info(&pf->pdev->dev, "dump desc aq\n"); 1325 } 1326 } else if (strncmp(&cmd_buf[5], "stats", 5) == 0) { 1327 dev_info(&pf->pdev->dev, "pf stats:\n"); 1328 i40e_dbg_dump_stats(pf, &pf->stats); 1329 dev_info(&pf->pdev->dev, "pf stats_offsets:\n"); 1330 i40e_dbg_dump_stats(pf, &pf->stats_offsets); 1331 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) { 1332 dev_info(&pf->pdev->dev, 1333 "core reset count: %d\n", pf->corer_count); 1334 dev_info(&pf->pdev->dev, 1335 "global reset count: %d\n", pf->globr_count); 1336 dev_info(&pf->pdev->dev, 1337 "emp reset count: %d\n", pf->empr_count); 1338 dev_info(&pf->pdev->dev, 1339 "pf reset count: %d\n", pf->pfr_count); 1340 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) { 1341 struct i40e_aqc_query_port_ets_config_resp *bw_data; 1342 struct i40e_dcbx_config *cfg = 1343 &pf->hw.local_dcbx_config; 1344 struct i40e_dcbx_config *r_cfg = 1345 &pf->hw.remote_dcbx_config; 1346 int i, ret; 1347 1348 bw_data = kzalloc(sizeof( 1349 struct i40e_aqc_query_port_ets_config_resp), 1350 GFP_KERNEL); 1351 if (!bw_data) { 1352 ret = -ENOMEM; 1353 goto command_write_done; 1354 } 1355 1356 ret = i40e_aq_query_port_ets_config(&pf->hw, 1357 pf->mac_seid, 1358 bw_data, NULL); 1359 if (ret) { 1360 dev_info(&pf->pdev->dev, 1361 "Query Port ETS Config AQ command failed =0x%x\n", 1362 pf->hw.aq.asq_last_status); 1363 kfree(bw_data); 1364 bw_data = NULL; 1365 goto command_write_done; 1366 } 1367 dev_info(&pf->pdev->dev, 1368 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n", 1369 bw_data->tc_valid_bits, 1370 bw_data->tc_strict_priority_bits, 1371 le16_to_cpu(bw_data->tc_bw_max[0]), 1372 le16_to_cpu(bw_data->tc_bw_max[1])); 1373 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1374 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n", 1375 bw_data->tc_bw_share_credits[i], 1376 le16_to_cpu(bw_data->tc_bw_limits[i])); 1377 } 1378 1379 kfree(bw_data); 1380 bw_data = NULL; 1381 1382 dev_info(&pf->pdev->dev, 1383 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n", 1384 cfg->etscfg.willing, cfg->etscfg.cbs, 1385 cfg->etscfg.maxtcs); 1386 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1387 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1388 i, cfg->etscfg.prioritytable[i], 1389 cfg->etscfg.tcbwtable[i], 1390 cfg->etscfg.tsatable[i]); 1391 } 1392 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1393 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1394 i, cfg->etsrec.prioritytable[i], 1395 cfg->etsrec.tcbwtable[i], 1396 cfg->etsrec.tsatable[i]); 1397 } 1398 dev_info(&pf->pdev->dev, 1399 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n", 1400 cfg->pfc.willing, cfg->pfc.mbc, 1401 cfg->pfc.pfccap, cfg->pfc.pfcenable); 1402 dev_info(&pf->pdev->dev, 1403 "port app_table: num_apps=%d\n", cfg->numapps); 1404 for (i = 0; i < cfg->numapps; i++) { 1405 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n", 1406 i, cfg->app[i].priority, 1407 cfg->app[i].selector, 1408 cfg->app[i].protocolid); 1409 } 1410 /* Peer TLV DCBX data */ 1411 dev_info(&pf->pdev->dev, 1412 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n", 1413 r_cfg->etscfg.willing, 1414 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs); 1415 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1416 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1417 i, r_cfg->etscfg.prioritytable[i], 1418 r_cfg->etscfg.tcbwtable[i], 1419 r_cfg->etscfg.tsatable[i]); 1420 } 1421 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1422 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1423 i, r_cfg->etsrec.prioritytable[i], 1424 r_cfg->etsrec.tcbwtable[i], 1425 r_cfg->etsrec.tsatable[i]); 1426 } 1427 dev_info(&pf->pdev->dev, 1428 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n", 1429 r_cfg->pfc.willing, 1430 r_cfg->pfc.mbc, 1431 r_cfg->pfc.pfccap, 1432 r_cfg->pfc.pfcenable); 1433 dev_info(&pf->pdev->dev, 1434 "remote port app_table: num_apps=%d\n", 1435 r_cfg->numapps); 1436 for (i = 0; i < r_cfg->numapps; i++) { 1437 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n", 1438 i, r_cfg->app[i].priority, 1439 r_cfg->app[i].selector, 1440 r_cfg->app[i].protocolid); 1441 } 1442 } else { 1443 dev_info(&pf->pdev->dev, 1444 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n"); 1445 dev_info(&pf->pdev->dev, "dump switch, dump vsi [seid] or\n"); 1446 dev_info(&pf->pdev->dev, "dump stats\n"); 1447 dev_info(&pf->pdev->dev, "dump reset stats\n"); 1448 dev_info(&pf->pdev->dev, "dump port\n"); 1449 dev_info(&pf->pdev->dev, 1450 "dump debug fwdata <cluster_id> <table_id> <index>\n"); 1451 } 1452 1453 } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) { 1454 u32 level; 1455 cnt = sscanf(&cmd_buf[10], "%i", &level); 1456 if (cnt) { 1457 if (I40E_DEBUG_USER & level) { 1458 pf->hw.debug_mask = level; 1459 dev_info(&pf->pdev->dev, 1460 "set hw.debug_mask = 0x%08x\n", 1461 pf->hw.debug_mask); 1462 } 1463 pf->msg_enable = level; 1464 dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n", 1465 pf->msg_enable); 1466 } else { 1467 dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n", 1468 pf->msg_enable); 1469 } 1470 } else if (strncmp(cmd_buf, "pfr", 3) == 0) { 1471 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n"); 1472 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED)); 1473 1474 } else if (strncmp(cmd_buf, "corer", 5) == 0) { 1475 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n"); 1476 i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED)); 1477 1478 } else if (strncmp(cmd_buf, "globr", 5) == 0) { 1479 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n"); 1480 i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED)); 1481 1482 } else if (strncmp(cmd_buf, "empr", 4) == 0) { 1483 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n"); 1484 i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED)); 1485 1486 } else if (strncmp(cmd_buf, "read", 4) == 0) { 1487 u32 address; 1488 u32 value; 1489 cnt = sscanf(&cmd_buf[4], "%i", &address); 1490 if (cnt != 1) { 1491 dev_info(&pf->pdev->dev, "read <reg>\n"); 1492 goto command_write_done; 1493 } 1494 1495 /* check the range on address */ 1496 if (address >= I40E_MAX_REGISTER) { 1497 dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n", 1498 address); 1499 goto command_write_done; 1500 } 1501 1502 value = rd32(&pf->hw, address); 1503 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n", 1504 address, value); 1505 1506 } else if (strncmp(cmd_buf, "write", 5) == 0) { 1507 u32 address, value; 1508 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value); 1509 if (cnt != 2) { 1510 dev_info(&pf->pdev->dev, "write <reg> <value>\n"); 1511 goto command_write_done; 1512 } 1513 1514 /* check the range on address */ 1515 if (address >= I40E_MAX_REGISTER) { 1516 dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n", 1517 address); 1518 goto command_write_done; 1519 } 1520 wr32(&pf->hw, address, value); 1521 value = rd32(&pf->hw, address); 1522 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n", 1523 address, value); 1524 } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) { 1525 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) { 1526 cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid); 1527 if (cnt == 0) { 1528 int i; 1529 for (i = 0; i < pf->num_alloc_vsi; i++) 1530 i40e_vsi_reset_stats(pf->vsi[i]); 1531 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n"); 1532 } else if (cnt == 1) { 1533 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1534 if (!vsi) { 1535 dev_info(&pf->pdev->dev, 1536 "clear_stats vsi: bad vsi %d\n", 1537 vsi_seid); 1538 goto command_write_done; 1539 } 1540 i40e_vsi_reset_stats(vsi); 1541 dev_info(&pf->pdev->dev, 1542 "vsi clear stats called for vsi %d\n", 1543 vsi_seid); 1544 } else { 1545 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n"); 1546 } 1547 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) { 1548 i40e_pf_reset_stats(pf); 1549 dev_info(&pf->pdev->dev, "pf clear stats called\n"); 1550 } else { 1551 dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n"); 1552 } 1553 } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) { 1554 struct i40e_aq_desc *desc; 1555 i40e_status ret; 1556 1557 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL); 1558 if (!desc) 1559 goto command_write_done; 1560 cnt = sscanf(&cmd_buf[11], 1561 "%hx %hx %hx %hx %x %x %x %x %x %x", 1562 &desc->flags, 1563 &desc->opcode, &desc->datalen, &desc->retval, 1564 &desc->cookie_high, &desc->cookie_low, 1565 &desc->params.internal.param0, 1566 &desc->params.internal.param1, 1567 &desc->params.internal.param2, 1568 &desc->params.internal.param3); 1569 if (cnt != 10) { 1570 dev_info(&pf->pdev->dev, 1571 "send aq_cmd: bad command string, cnt=%d\n", 1572 cnt); 1573 kfree(desc); 1574 desc = NULL; 1575 goto command_write_done; 1576 } 1577 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL); 1578 if (!ret) { 1579 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n"); 1580 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) { 1581 dev_info(&pf->pdev->dev, 1582 "AQ command send failed Opcode %x AQ Error: %d\n", 1583 desc->opcode, pf->hw.aq.asq_last_status); 1584 } else { 1585 dev_info(&pf->pdev->dev, 1586 "AQ command send failed Opcode %x Status: %d\n", 1587 desc->opcode, ret); 1588 } 1589 dev_info(&pf->pdev->dev, 1590 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", 1591 desc->flags, desc->opcode, desc->datalen, desc->retval, 1592 desc->cookie_high, desc->cookie_low, 1593 desc->params.internal.param0, 1594 desc->params.internal.param1, 1595 desc->params.internal.param2, 1596 desc->params.internal.param3); 1597 kfree(desc); 1598 desc = NULL; 1599 } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) { 1600 struct i40e_aq_desc *desc; 1601 i40e_status ret; 1602 u16 buffer_len; 1603 u8 *buff; 1604 1605 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL); 1606 if (!desc) 1607 goto command_write_done; 1608 cnt = sscanf(&cmd_buf[20], 1609 "%hx %hx %hx %hx %x %x %x %x %x %x %hd", 1610 &desc->flags, 1611 &desc->opcode, &desc->datalen, &desc->retval, 1612 &desc->cookie_high, &desc->cookie_low, 1613 &desc->params.internal.param0, 1614 &desc->params.internal.param1, 1615 &desc->params.internal.param2, 1616 &desc->params.internal.param3, 1617 &buffer_len); 1618 if (cnt != 11) { 1619 dev_info(&pf->pdev->dev, 1620 "send indirect aq_cmd: bad command string, cnt=%d\n", 1621 cnt); 1622 kfree(desc); 1623 desc = NULL; 1624 goto command_write_done; 1625 } 1626 /* Just stub a buffer big enough in case user messed up */ 1627 if (buffer_len == 0) 1628 buffer_len = 1280; 1629 1630 buff = kzalloc(buffer_len, GFP_KERNEL); 1631 if (!buff) { 1632 kfree(desc); 1633 desc = NULL; 1634 goto command_write_done; 1635 } 1636 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF); 1637 ret = i40e_asq_send_command(&pf->hw, desc, buff, 1638 buffer_len, NULL); 1639 if (!ret) { 1640 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n"); 1641 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) { 1642 dev_info(&pf->pdev->dev, 1643 "AQ command send failed Opcode %x AQ Error: %d\n", 1644 desc->opcode, pf->hw.aq.asq_last_status); 1645 } else { 1646 dev_info(&pf->pdev->dev, 1647 "AQ command send failed Opcode %x Status: %d\n", 1648 desc->opcode, ret); 1649 } 1650 dev_info(&pf->pdev->dev, 1651 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", 1652 desc->flags, desc->opcode, desc->datalen, desc->retval, 1653 desc->cookie_high, desc->cookie_low, 1654 desc->params.internal.param0, 1655 desc->params.internal.param1, 1656 desc->params.internal.param2, 1657 desc->params.internal.param3); 1658 print_hex_dump(KERN_INFO, "AQ buffer WB: ", 1659 DUMP_PREFIX_OFFSET, 16, 1, 1660 buff, buffer_len, true); 1661 kfree(buff); 1662 buff = NULL; 1663 kfree(desc); 1664 desc = NULL; 1665 } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) || 1666 (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) { 1667 struct i40e_fdir_filter fd_data; 1668 u16 packet_len, i, j = 0; 1669 char *asc_packet; 1670 u8 *raw_packet; 1671 bool add = false; 1672 int ret; 1673 1674 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 1675 goto command_write_done; 1676 1677 if (strncmp(cmd_buf, "add", 3) == 0) 1678 add = true; 1679 1680 if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)) 1681 goto command_write_done; 1682 1683 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE, 1684 GFP_KERNEL); 1685 if (!asc_packet) 1686 goto command_write_done; 1687 1688 raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE, 1689 GFP_KERNEL); 1690 1691 if (!raw_packet) { 1692 kfree(asc_packet); 1693 asc_packet = NULL; 1694 goto command_write_done; 1695 } 1696 1697 cnt = sscanf(&cmd_buf[13], 1698 "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s", 1699 &fd_data.q_index, 1700 &fd_data.flex_off, &fd_data.pctype, 1701 &fd_data.dest_vsi, &fd_data.dest_ctl, 1702 &fd_data.fd_status, &fd_data.cnt_index, 1703 &fd_data.fd_id, &packet_len, asc_packet); 1704 if (cnt != 10) { 1705 dev_info(&pf->pdev->dev, 1706 "program fd_filter: bad command string, cnt=%d\n", 1707 cnt); 1708 kfree(asc_packet); 1709 asc_packet = NULL; 1710 kfree(raw_packet); 1711 goto command_write_done; 1712 } 1713 1714 /* fix packet length if user entered 0 */ 1715 if (packet_len == 0) 1716 packet_len = I40E_FDIR_MAX_RAW_PACKET_SIZE; 1717 1718 /* make sure to check the max as well */ 1719 packet_len = min_t(u16, 1720 packet_len, I40E_FDIR_MAX_RAW_PACKET_SIZE); 1721 1722 for (i = 0; i < packet_len; i++) { 1723 sscanf(&asc_packet[j], "%2hhx ", 1724 &raw_packet[i]); 1725 j += 3; 1726 } 1727 dev_info(&pf->pdev->dev, "FD raw packet dump\n"); 1728 print_hex_dump(KERN_INFO, "FD raw packet: ", 1729 DUMP_PREFIX_OFFSET, 16, 1, 1730 raw_packet, packet_len, true); 1731 ret = i40e_program_fdir_filter(&fd_data, raw_packet, pf, add); 1732 if (!ret) { 1733 dev_info(&pf->pdev->dev, "Filter command send Status : Success\n"); 1734 } else { 1735 dev_info(&pf->pdev->dev, 1736 "Filter command send failed %d\n", ret); 1737 } 1738 kfree(raw_packet); 1739 raw_packet = NULL; 1740 kfree(asc_packet); 1741 asc_packet = NULL; 1742 } else if (strncmp(cmd_buf, "fd-atr off", 10) == 0) { 1743 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, false); 1744 } else if (strncmp(cmd_buf, "fd-atr on", 9) == 0) { 1745 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, true); 1746 } else if (strncmp(cmd_buf, "lldp", 4) == 0) { 1747 if (strncmp(&cmd_buf[5], "stop", 4) == 0) { 1748 int ret; 1749 ret = i40e_aq_stop_lldp(&pf->hw, false, NULL); 1750 if (ret) { 1751 dev_info(&pf->pdev->dev, 1752 "Stop LLDP AQ command failed =0x%x\n", 1753 pf->hw.aq.asq_last_status); 1754 goto command_write_done; 1755 } 1756 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw, 1757 pf->hw.mac.addr, 1758 I40E_ETH_P_LLDP, 0, 1759 pf->vsi[pf->lan_vsi]->seid, 1760 0, true, NULL, NULL); 1761 if (ret) { 1762 dev_info(&pf->pdev->dev, 1763 "%s: Add Control Packet Filter AQ command failed =0x%x\n", 1764 __func__, pf->hw.aq.asq_last_status); 1765 goto command_write_done; 1766 } 1767 #ifdef CONFIG_I40E_DCB 1768 pf->dcbx_cap = DCB_CAP_DCBX_HOST | 1769 DCB_CAP_DCBX_VER_IEEE; 1770 #endif /* CONFIG_I40E_DCB */ 1771 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) { 1772 int ret; 1773 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw, 1774 pf->hw.mac.addr, 1775 I40E_ETH_P_LLDP, 0, 1776 pf->vsi[pf->lan_vsi]->seid, 1777 0, false, NULL, NULL); 1778 if (ret) { 1779 dev_info(&pf->pdev->dev, 1780 "%s: Remove Control Packet Filter AQ command failed =0x%x\n", 1781 __func__, pf->hw.aq.asq_last_status); 1782 /* Continue and start FW LLDP anyways */ 1783 } 1784 1785 ret = i40e_aq_start_lldp(&pf->hw, NULL); 1786 if (ret) { 1787 dev_info(&pf->pdev->dev, 1788 "Start LLDP AQ command failed =0x%x\n", 1789 pf->hw.aq.asq_last_status); 1790 goto command_write_done; 1791 } 1792 #ifdef CONFIG_I40E_DCB 1793 pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED | 1794 DCB_CAP_DCBX_VER_IEEE; 1795 #endif /* CONFIG_I40E_DCB */ 1796 } else if (strncmp(&cmd_buf[5], 1797 "get local", 9) == 0) { 1798 u16 llen, rlen; 1799 int ret; 1800 u8 *buff; 1801 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL); 1802 if (!buff) 1803 goto command_write_done; 1804 1805 ret = i40e_aq_get_lldp_mib(&pf->hw, 0, 1806 I40E_AQ_LLDP_MIB_LOCAL, 1807 buff, I40E_LLDPDU_SIZE, 1808 &llen, &rlen, NULL); 1809 if (ret) { 1810 dev_info(&pf->pdev->dev, 1811 "Get LLDP MIB (local) AQ command failed =0x%x\n", 1812 pf->hw.aq.asq_last_status); 1813 kfree(buff); 1814 buff = NULL; 1815 goto command_write_done; 1816 } 1817 dev_info(&pf->pdev->dev, "LLDP MIB (local)\n"); 1818 print_hex_dump(KERN_INFO, "LLDP MIB (local): ", 1819 DUMP_PREFIX_OFFSET, 16, 1, 1820 buff, I40E_LLDPDU_SIZE, true); 1821 kfree(buff); 1822 buff = NULL; 1823 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) { 1824 u16 llen, rlen; 1825 int ret; 1826 u8 *buff; 1827 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL); 1828 if (!buff) 1829 goto command_write_done; 1830 1831 ret = i40e_aq_get_lldp_mib(&pf->hw, 1832 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE, 1833 I40E_AQ_LLDP_MIB_LOCAL, 1834 buff, I40E_LLDPDU_SIZE, 1835 &llen, &rlen, NULL); 1836 if (ret) { 1837 dev_info(&pf->pdev->dev, 1838 "Get LLDP MIB (remote) AQ command failed =0x%x\n", 1839 pf->hw.aq.asq_last_status); 1840 kfree(buff); 1841 buff = NULL; 1842 goto command_write_done; 1843 } 1844 dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n"); 1845 print_hex_dump(KERN_INFO, "LLDP MIB (remote): ", 1846 DUMP_PREFIX_OFFSET, 16, 1, 1847 buff, I40E_LLDPDU_SIZE, true); 1848 kfree(buff); 1849 buff = NULL; 1850 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) { 1851 int ret; 1852 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw, 1853 true, NULL); 1854 if (ret) { 1855 dev_info(&pf->pdev->dev, 1856 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n", 1857 pf->hw.aq.asq_last_status); 1858 goto command_write_done; 1859 } 1860 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) { 1861 int ret; 1862 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw, 1863 false, NULL); 1864 if (ret) { 1865 dev_info(&pf->pdev->dev, 1866 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n", 1867 pf->hw.aq.asq_last_status); 1868 goto command_write_done; 1869 } 1870 } 1871 } else if (strncmp(cmd_buf, "nvm read", 8) == 0) { 1872 u16 buffer_len, bytes; 1873 u16 module; 1874 u32 offset; 1875 u16 *buff; 1876 int ret; 1877 1878 cnt = sscanf(&cmd_buf[8], "%hx %x %hx", 1879 &module, &offset, &buffer_len); 1880 if (cnt == 0) { 1881 module = 0; 1882 offset = 0; 1883 buffer_len = 0; 1884 } else if (cnt == 1) { 1885 offset = 0; 1886 buffer_len = 0; 1887 } else if (cnt == 2) { 1888 buffer_len = 0; 1889 } else if (cnt > 3) { 1890 dev_info(&pf->pdev->dev, 1891 "nvm read: bad command string, cnt=%d\n", cnt); 1892 goto command_write_done; 1893 } 1894 1895 /* set the max length */ 1896 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2); 1897 1898 bytes = 2 * buffer_len; 1899 1900 /* read at least 1k bytes, no more than 4kB */ 1901 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE); 1902 buff = kzalloc(bytes, GFP_KERNEL); 1903 if (!buff) 1904 goto command_write_done; 1905 1906 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ); 1907 if (ret) { 1908 dev_info(&pf->pdev->dev, 1909 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1910 ret, pf->hw.aq.asq_last_status); 1911 kfree(buff); 1912 goto command_write_done; 1913 } 1914 1915 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset), 1916 bytes, (u8 *)buff, true, NULL); 1917 i40e_release_nvm(&pf->hw); 1918 if (ret) { 1919 dev_info(&pf->pdev->dev, 1920 "Read NVM AQ failed err=%d status=0x%x\n", 1921 ret, pf->hw.aq.asq_last_status); 1922 } else { 1923 dev_info(&pf->pdev->dev, 1924 "Read NVM module=0x%x offset=0x%x words=%d\n", 1925 module, offset, buffer_len); 1926 if (bytes) 1927 print_hex_dump(KERN_INFO, "NVM Dump: ", 1928 DUMP_PREFIX_OFFSET, 16, 2, 1929 buff, bytes, true); 1930 } 1931 kfree(buff); 1932 buff = NULL; 1933 } else { 1934 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf); 1935 dev_info(&pf->pdev->dev, "available commands\n"); 1936 dev_info(&pf->pdev->dev, " add vsi [relay_seid]\n"); 1937 dev_info(&pf->pdev->dev, " del vsi [vsi_seid]\n"); 1938 dev_info(&pf->pdev->dev, " add relay <uplink_seid> <vsi_seid>\n"); 1939 dev_info(&pf->pdev->dev, " del relay <relay_seid>\n"); 1940 dev_info(&pf->pdev->dev, " add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n"); 1941 dev_info(&pf->pdev->dev, " del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n"); 1942 dev_info(&pf->pdev->dev, " add pvid <vsi_seid> <vid>\n"); 1943 dev_info(&pf->pdev->dev, " del pvid <vsi_seid>\n"); 1944 dev_info(&pf->pdev->dev, " dump switch\n"); 1945 dev_info(&pf->pdev->dev, " dump vsi [seid]\n"); 1946 dev_info(&pf->pdev->dev, " dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n"); 1947 dev_info(&pf->pdev->dev, " dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n"); 1948 dev_info(&pf->pdev->dev, " dump desc aq\n"); 1949 dev_info(&pf->pdev->dev, " dump stats\n"); 1950 dev_info(&pf->pdev->dev, " dump reset stats\n"); 1951 dev_info(&pf->pdev->dev, " msg_enable [level]\n"); 1952 dev_info(&pf->pdev->dev, " read <reg>\n"); 1953 dev_info(&pf->pdev->dev, " write <reg> <value>\n"); 1954 dev_info(&pf->pdev->dev, " clear_stats vsi [seid]\n"); 1955 dev_info(&pf->pdev->dev, " clear_stats pf\n"); 1956 dev_info(&pf->pdev->dev, " pfr\n"); 1957 dev_info(&pf->pdev->dev, " corer\n"); 1958 dev_info(&pf->pdev->dev, " globr\n"); 1959 dev_info(&pf->pdev->dev, " send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n"); 1960 dev_info(&pf->pdev->dev, " send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n"); 1961 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"); 1962 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"); 1963 dev_info(&pf->pdev->dev, " fd-atr off\n"); 1964 dev_info(&pf->pdev->dev, " fd-atr on\n"); 1965 dev_info(&pf->pdev->dev, " lldp start\n"); 1966 dev_info(&pf->pdev->dev, " lldp stop\n"); 1967 dev_info(&pf->pdev->dev, " lldp get local\n"); 1968 dev_info(&pf->pdev->dev, " lldp get remote\n"); 1969 dev_info(&pf->pdev->dev, " lldp event on\n"); 1970 dev_info(&pf->pdev->dev, " lldp event off\n"); 1971 dev_info(&pf->pdev->dev, " nvm read [module] [word_offset] [word_count]\n"); 1972 } 1973 1974 command_write_done: 1975 kfree(cmd_buf); 1976 cmd_buf = NULL; 1977 return count; 1978 } 1979 1980 static const struct file_operations i40e_dbg_command_fops = { 1981 .owner = THIS_MODULE, 1982 .open = simple_open, 1983 .read = i40e_dbg_command_read, 1984 .write = i40e_dbg_command_write, 1985 }; 1986 1987 /************************************************************** 1988 * netdev_ops 1989 * The netdev_ops entry in debugfs is for giving the driver commands 1990 * to be executed from the netdev operations. 1991 **************************************************************/ 1992 static char i40e_dbg_netdev_ops_buf[256] = "hello world"; 1993 1994 /** 1995 * i40e_dbg_netdev_ops - read for netdev_ops datum 1996 * @filp: the opened file 1997 * @buffer: where to write the data for the user to read 1998 * @count: the size of the user's buffer 1999 * @ppos: file position offset 2000 **/ 2001 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer, 2002 size_t count, loff_t *ppos) 2003 { 2004 struct i40e_pf *pf = filp->private_data; 2005 int bytes_not_copied; 2006 int buf_size = 256; 2007 char *buf; 2008 int len; 2009 2010 /* don't allow partal reads */ 2011 if (*ppos != 0) 2012 return 0; 2013 if (count < buf_size) 2014 return -ENOSPC; 2015 2016 buf = kzalloc(buf_size, GFP_KERNEL); 2017 if (!buf) 2018 return -ENOSPC; 2019 2020 len = snprintf(buf, buf_size, "%s: %s\n", 2021 pf->vsi[pf->lan_vsi]->netdev->name, 2022 i40e_dbg_netdev_ops_buf); 2023 2024 bytes_not_copied = copy_to_user(buffer, buf, len); 2025 kfree(buf); 2026 2027 if (bytes_not_copied < 0) 2028 return bytes_not_copied; 2029 2030 *ppos = len; 2031 return len; 2032 } 2033 2034 /** 2035 * i40e_dbg_netdev_ops_write - write into netdev_ops datum 2036 * @filp: the opened file 2037 * @buffer: where to find the user's data 2038 * @count: the length of the user's data 2039 * @ppos: file position offset 2040 **/ 2041 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp, 2042 const char __user *buffer, 2043 size_t count, loff_t *ppos) 2044 { 2045 struct i40e_pf *pf = filp->private_data; 2046 int bytes_not_copied; 2047 struct i40e_vsi *vsi; 2048 char *buf_tmp; 2049 int vsi_seid; 2050 int i, cnt; 2051 2052 /* don't allow partial writes */ 2053 if (*ppos != 0) 2054 return 0; 2055 if (count >= sizeof(i40e_dbg_netdev_ops_buf)) 2056 return -ENOSPC; 2057 2058 memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf)); 2059 bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf, 2060 buffer, count); 2061 if (bytes_not_copied < 0) 2062 return bytes_not_copied; 2063 else if (bytes_not_copied > 0) 2064 count -= bytes_not_copied; 2065 i40e_dbg_netdev_ops_buf[count] = '\0'; 2066 2067 buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n'); 2068 if (buf_tmp) { 2069 *buf_tmp = '\0'; 2070 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1; 2071 } 2072 2073 if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) { 2074 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid); 2075 if (cnt != 1) { 2076 dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n"); 2077 goto netdev_ops_write_done; 2078 } 2079 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2080 if (!vsi) { 2081 dev_info(&pf->pdev->dev, 2082 "tx_timeout: VSI %d not found\n", vsi_seid); 2083 } else if (!vsi->netdev) { 2084 dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n", 2085 vsi_seid); 2086 } else if (test_bit(__I40E_DOWN, &vsi->state)) { 2087 dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n", 2088 vsi_seid); 2089 } else if (rtnl_trylock()) { 2090 vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev); 2091 rtnl_unlock(); 2092 dev_info(&pf->pdev->dev, "tx_timeout called\n"); 2093 } else { 2094 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2095 } 2096 } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) { 2097 int mtu; 2098 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i", 2099 &vsi_seid, &mtu); 2100 if (cnt != 2) { 2101 dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n"); 2102 goto netdev_ops_write_done; 2103 } 2104 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2105 if (!vsi) { 2106 dev_info(&pf->pdev->dev, 2107 "change_mtu: VSI %d not found\n", vsi_seid); 2108 } else if (!vsi->netdev) { 2109 dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n", 2110 vsi_seid); 2111 } else if (rtnl_trylock()) { 2112 vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev, 2113 mtu); 2114 rtnl_unlock(); 2115 dev_info(&pf->pdev->dev, "change_mtu called\n"); 2116 } else { 2117 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2118 } 2119 2120 } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) { 2121 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid); 2122 if (cnt != 1) { 2123 dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n"); 2124 goto netdev_ops_write_done; 2125 } 2126 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2127 if (!vsi) { 2128 dev_info(&pf->pdev->dev, 2129 "set_rx_mode: VSI %d not found\n", vsi_seid); 2130 } else if (!vsi->netdev) { 2131 dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n", 2132 vsi_seid); 2133 } else if (rtnl_trylock()) { 2134 vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev); 2135 rtnl_unlock(); 2136 dev_info(&pf->pdev->dev, "set_rx_mode called\n"); 2137 } else { 2138 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2139 } 2140 2141 } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) { 2142 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid); 2143 if (cnt != 1) { 2144 dev_info(&pf->pdev->dev, "napi <vsi_seid>\n"); 2145 goto netdev_ops_write_done; 2146 } 2147 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2148 if (!vsi) { 2149 dev_info(&pf->pdev->dev, "napi: VSI %d not found\n", 2150 vsi_seid); 2151 } else if (!vsi->netdev) { 2152 dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n", 2153 vsi_seid); 2154 } else { 2155 for (i = 0; i < vsi->num_q_vectors; i++) 2156 napi_schedule(&vsi->q_vectors[i]->napi); 2157 dev_info(&pf->pdev->dev, "napi called\n"); 2158 } 2159 } else { 2160 dev_info(&pf->pdev->dev, "unknown command '%s'\n", 2161 i40e_dbg_netdev_ops_buf); 2162 dev_info(&pf->pdev->dev, "available commands\n"); 2163 dev_info(&pf->pdev->dev, " tx_timeout <vsi_seid>\n"); 2164 dev_info(&pf->pdev->dev, " change_mtu <vsi_seid> <mtu>\n"); 2165 dev_info(&pf->pdev->dev, " set_rx_mode <vsi_seid>\n"); 2166 dev_info(&pf->pdev->dev, " napi <vsi_seid>\n"); 2167 } 2168 netdev_ops_write_done: 2169 return count; 2170 } 2171 2172 static const struct file_operations i40e_dbg_netdev_ops_fops = { 2173 .owner = THIS_MODULE, 2174 .open = simple_open, 2175 .read = i40e_dbg_netdev_ops_read, 2176 .write = i40e_dbg_netdev_ops_write, 2177 }; 2178 2179 /** 2180 * i40e_dbg_pf_init - setup the debugfs directory for the pf 2181 * @pf: the pf that is starting up 2182 **/ 2183 void i40e_dbg_pf_init(struct i40e_pf *pf) 2184 { 2185 struct dentry *pfile; 2186 const char *name = pci_name(pf->pdev); 2187 const struct device *dev = &pf->pdev->dev; 2188 2189 pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root); 2190 if (!pf->i40e_dbg_pf) 2191 return; 2192 2193 pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf, 2194 &i40e_dbg_command_fops); 2195 if (!pfile) 2196 goto create_failed; 2197 2198 pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf, 2199 &i40e_dbg_dump_fops); 2200 if (!pfile) 2201 goto create_failed; 2202 2203 pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf, 2204 &i40e_dbg_netdev_ops_fops); 2205 if (!pfile) 2206 goto create_failed; 2207 2208 return; 2209 2210 create_failed: 2211 dev_info(dev, "debugfs dir/file for %s failed\n", name); 2212 debugfs_remove_recursive(pf->i40e_dbg_pf); 2213 return; 2214 } 2215 2216 /** 2217 * i40e_dbg_pf_exit - clear out the pf's debugfs entries 2218 * @pf: the pf that is stopping 2219 **/ 2220 void i40e_dbg_pf_exit(struct i40e_pf *pf) 2221 { 2222 debugfs_remove_recursive(pf->i40e_dbg_pf); 2223 pf->i40e_dbg_pf = NULL; 2224 2225 kfree(i40e_dbg_dump_buf); 2226 i40e_dbg_dump_buf = NULL; 2227 } 2228 2229 /** 2230 * i40e_dbg_init - start up debugfs for the driver 2231 **/ 2232 void i40e_dbg_init(void) 2233 { 2234 i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL); 2235 if (!i40e_dbg_root) 2236 pr_info("init of debugfs failed\n"); 2237 } 2238 2239 /** 2240 * i40e_dbg_exit - clean out the driver's debugfs entries 2241 **/ 2242 void i40e_dbg_exit(void) 2243 { 2244 debugfs_remove_recursive(i40e_dbg_root); 2245 i40e_dbg_root = NULL; 2246 } 2247 2248 #endif /* CONFIG_DEBUG_FS */ 2249