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] = ""; 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 if (vsi == pf->vsi[pf->lan_vsi]) 394 dev_info(&pf->pdev->dev, "MAC address: %pM SAN MAC: %pM Port MAC: %pM\n", 395 pf->hw.mac.addr, 396 pf->hw.mac.san_addr, 397 pf->hw.mac.port_addr); 398 list_for_each_entry(f, &vsi->mac_filter_list, list) { 399 dev_info(&pf->pdev->dev, 400 " mac_filter_list: %pM vid=%d, is_netdev=%d is_vf=%d counter=%d\n", 401 f->macaddr, f->vlan, f->is_netdev, f->is_vf, 402 f->counter); 403 } 404 nstat = i40e_get_vsi_stats_struct(vsi); 405 dev_info(&pf->pdev->dev, 406 " net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n", 407 (long unsigned int)nstat->rx_packets, 408 (long unsigned int)nstat->rx_bytes, 409 (long unsigned int)nstat->rx_errors, 410 (long unsigned int)nstat->rx_dropped); 411 dev_info(&pf->pdev->dev, 412 " net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n", 413 (long unsigned int)nstat->tx_packets, 414 (long unsigned int)nstat->tx_bytes, 415 (long unsigned int)nstat->tx_errors, 416 (long unsigned int)nstat->tx_dropped); 417 dev_info(&pf->pdev->dev, 418 " net_stats: multicast = %lu, collisions = %lu\n", 419 (long unsigned int)nstat->multicast, 420 (long unsigned int)nstat->collisions); 421 dev_info(&pf->pdev->dev, 422 " net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n", 423 (long unsigned int)nstat->rx_length_errors, 424 (long unsigned int)nstat->rx_over_errors, 425 (long unsigned int)nstat->rx_crc_errors); 426 dev_info(&pf->pdev->dev, 427 " net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n", 428 (long unsigned int)nstat->rx_frame_errors, 429 (long unsigned int)nstat->rx_fifo_errors, 430 (long unsigned int)nstat->rx_missed_errors); 431 dev_info(&pf->pdev->dev, 432 " net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n", 433 (long unsigned int)nstat->tx_aborted_errors, 434 (long unsigned int)nstat->tx_carrier_errors, 435 (long unsigned int)nstat->tx_fifo_errors); 436 dev_info(&pf->pdev->dev, 437 " net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n", 438 (long unsigned int)nstat->tx_heartbeat_errors, 439 (long unsigned int)nstat->tx_window_errors); 440 dev_info(&pf->pdev->dev, 441 " net_stats: rx_compressed = %lu, tx_compressed = %lu\n", 442 (long unsigned int)nstat->rx_compressed, 443 (long unsigned int)nstat->tx_compressed); 444 dev_info(&pf->pdev->dev, 445 " net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n", 446 (long unsigned int)vsi->net_stats_offsets.rx_packets, 447 (long unsigned int)vsi->net_stats_offsets.rx_bytes, 448 (long unsigned int)vsi->net_stats_offsets.rx_errors, 449 (long unsigned int)vsi->net_stats_offsets.rx_dropped); 450 dev_info(&pf->pdev->dev, 451 " net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n", 452 (long unsigned int)vsi->net_stats_offsets.tx_packets, 453 (long unsigned int)vsi->net_stats_offsets.tx_bytes, 454 (long unsigned int)vsi->net_stats_offsets.tx_errors, 455 (long unsigned int)vsi->net_stats_offsets.tx_dropped); 456 dev_info(&pf->pdev->dev, 457 " net_stats_offsets: multicast = %lu, collisions = %lu\n", 458 (long unsigned int)vsi->net_stats_offsets.multicast, 459 (long unsigned int)vsi->net_stats_offsets.collisions); 460 dev_info(&pf->pdev->dev, 461 " net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n", 462 (long unsigned int)vsi->net_stats_offsets.rx_length_errors, 463 (long unsigned int)vsi->net_stats_offsets.rx_over_errors, 464 (long unsigned int)vsi->net_stats_offsets.rx_crc_errors); 465 dev_info(&pf->pdev->dev, 466 " net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n", 467 (long unsigned int)vsi->net_stats_offsets.rx_frame_errors, 468 (long unsigned int)vsi->net_stats_offsets.rx_fifo_errors, 469 (long unsigned int)vsi->net_stats_offsets.rx_missed_errors); 470 dev_info(&pf->pdev->dev, 471 " net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n", 472 (long unsigned int)vsi->net_stats_offsets.tx_aborted_errors, 473 (long unsigned int)vsi->net_stats_offsets.tx_carrier_errors, 474 (long unsigned int)vsi->net_stats_offsets.tx_fifo_errors); 475 dev_info(&pf->pdev->dev, 476 " net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n", 477 (long unsigned int)vsi->net_stats_offsets.tx_heartbeat_errors, 478 (long unsigned int)vsi->net_stats_offsets.tx_window_errors); 479 dev_info(&pf->pdev->dev, 480 " net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n", 481 (long unsigned int)vsi->net_stats_offsets.rx_compressed, 482 (long unsigned int)vsi->net_stats_offsets.tx_compressed); 483 dev_info(&pf->pdev->dev, 484 " tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n", 485 vsi->tx_restart, vsi->tx_busy, 486 vsi->rx_buf_failed, vsi->rx_page_failed); 487 rcu_read_lock(); 488 for (i = 0; i < vsi->num_queue_pairs; i++) { 489 struct i40e_ring *rx_ring = ACCESS_ONCE(vsi->rx_rings[i]); 490 if (!rx_ring) 491 continue; 492 493 dev_info(&pf->pdev->dev, 494 " rx_rings[%i]: desc = %p\n", 495 i, rx_ring->desc); 496 dev_info(&pf->pdev->dev, 497 " rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n", 498 i, rx_ring->dev, 499 rx_ring->netdev, 500 rx_ring->rx_bi); 501 dev_info(&pf->pdev->dev, 502 " rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n", 503 i, rx_ring->state, 504 rx_ring->queue_index, 505 rx_ring->reg_idx); 506 dev_info(&pf->pdev->dev, 507 " rx_rings[%i]: rx_hdr_len = %d, rx_buf_len = %d, dtype = %d\n", 508 i, rx_ring->rx_hdr_len, 509 rx_ring->rx_buf_len, 510 rx_ring->dtype); 511 dev_info(&pf->pdev->dev, 512 " rx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n", 513 i, rx_ring->hsplit, 514 rx_ring->next_to_use, 515 rx_ring->next_to_clean, 516 rx_ring->ring_active); 517 dev_info(&pf->pdev->dev, 518 " rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n", 519 i, rx_ring->stats.packets, 520 rx_ring->stats.bytes, 521 rx_ring->rx_stats.non_eop_descs); 522 dev_info(&pf->pdev->dev, 523 " rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n", 524 i, 525 rx_ring->rx_stats.alloc_page_failed, 526 rx_ring->rx_stats.alloc_buff_failed); 527 dev_info(&pf->pdev->dev, 528 " rx_rings[%i]: size = %i, dma = 0x%08lx\n", 529 i, rx_ring->size, 530 (long unsigned int)rx_ring->dma); 531 dev_info(&pf->pdev->dev, 532 " rx_rings[%i]: vsi = %p, q_vector = %p\n", 533 i, rx_ring->vsi, 534 rx_ring->q_vector); 535 } 536 for (i = 0; i < vsi->num_queue_pairs; i++) { 537 struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]); 538 if (!tx_ring) 539 continue; 540 541 dev_info(&pf->pdev->dev, 542 " tx_rings[%i]: desc = %p\n", 543 i, tx_ring->desc); 544 dev_info(&pf->pdev->dev, 545 " tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n", 546 i, tx_ring->dev, 547 tx_ring->netdev, 548 tx_ring->tx_bi); 549 dev_info(&pf->pdev->dev, 550 " tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n", 551 i, tx_ring->state, 552 tx_ring->queue_index, 553 tx_ring->reg_idx); 554 dev_info(&pf->pdev->dev, 555 " tx_rings[%i]: dtype = %d\n", 556 i, tx_ring->dtype); 557 dev_info(&pf->pdev->dev, 558 " tx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n", 559 i, tx_ring->hsplit, 560 tx_ring->next_to_use, 561 tx_ring->next_to_clean, 562 tx_ring->ring_active); 563 dev_info(&pf->pdev->dev, 564 " tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n", 565 i, tx_ring->stats.packets, 566 tx_ring->stats.bytes, 567 tx_ring->tx_stats.restart_queue); 568 dev_info(&pf->pdev->dev, 569 " tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n", 570 i, 571 tx_ring->tx_stats.tx_busy, 572 tx_ring->tx_stats.tx_done_old); 573 dev_info(&pf->pdev->dev, 574 " tx_rings[%i]: size = %i, dma = 0x%08lx\n", 575 i, tx_ring->size, 576 (long unsigned int)tx_ring->dma); 577 dev_info(&pf->pdev->dev, 578 " tx_rings[%i]: vsi = %p, q_vector = %p\n", 579 i, tx_ring->vsi, 580 tx_ring->q_vector); 581 dev_info(&pf->pdev->dev, 582 " tx_rings[%i]: DCB tc = %d\n", 583 i, tx_ring->dcb_tc); 584 } 585 rcu_read_unlock(); 586 dev_info(&pf->pdev->dev, 587 " work_limit = %d, rx_itr_setting = %d (%s), tx_itr_setting = %d (%s)\n", 588 vsi->work_limit, vsi->rx_itr_setting, 589 ITR_IS_DYNAMIC(vsi->rx_itr_setting) ? "dynamic" : "fixed", 590 vsi->tx_itr_setting, 591 ITR_IS_DYNAMIC(vsi->tx_itr_setting) ? "dynamic" : "fixed"); 592 dev_info(&pf->pdev->dev, 593 " max_frame = %d, rx_hdr_len = %d, rx_buf_len = %d dtype = %d\n", 594 vsi->max_frame, vsi->rx_hdr_len, vsi->rx_buf_len, vsi->dtype); 595 dev_info(&pf->pdev->dev, 596 " num_q_vectors = %i, base_vector = %i\n", 597 vsi->num_q_vectors, vsi->base_vector); 598 dev_info(&pf->pdev->dev, 599 " seid = %d, id = %d, uplink_seid = %d\n", 600 vsi->seid, vsi->id, vsi->uplink_seid); 601 dev_info(&pf->pdev->dev, 602 " base_queue = %d, num_queue_pairs = %d, num_desc = %d\n", 603 vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc); 604 dev_info(&pf->pdev->dev, " type = %i\n", vsi->type); 605 dev_info(&pf->pdev->dev, 606 " info: valid_sections = 0x%04x, switch_id = 0x%04x\n", 607 vsi->info.valid_sections, vsi->info.switch_id); 608 dev_info(&pf->pdev->dev, 609 " info: sw_reserved[] = 0x%02x 0x%02x\n", 610 vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]); 611 dev_info(&pf->pdev->dev, 612 " info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n", 613 vsi->info.sec_flags, vsi->info.sec_reserved); 614 dev_info(&pf->pdev->dev, 615 " info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n", 616 vsi->info.pvid, vsi->info.fcoe_pvid, 617 vsi->info.port_vlan_flags); 618 dev_info(&pf->pdev->dev, 619 " info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n", 620 vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1], 621 vsi->info.pvlan_reserved[2]); 622 dev_info(&pf->pdev->dev, 623 " info: ingress_table = 0x%08x, egress_table = 0x%08x\n", 624 vsi->info.ingress_table, vsi->info.egress_table); 625 dev_info(&pf->pdev->dev, 626 " info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n", 627 vsi->info.cas_pv_tag, vsi->info.cas_pv_flags, 628 vsi->info.cas_pv_reserved); 629 dev_info(&pf->pdev->dev, 630 " info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n", 631 vsi->info.queue_mapping[0], vsi->info.queue_mapping[1], 632 vsi->info.queue_mapping[2], vsi->info.queue_mapping[3], 633 vsi->info.queue_mapping[4], vsi->info.queue_mapping[5], 634 vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]); 635 dev_info(&pf->pdev->dev, 636 " info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n", 637 vsi->info.queue_mapping[8], vsi->info.queue_mapping[9], 638 vsi->info.queue_mapping[10], vsi->info.queue_mapping[11], 639 vsi->info.queue_mapping[12], vsi->info.queue_mapping[13], 640 vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]); 641 dev_info(&pf->pdev->dev, 642 " info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n", 643 vsi->info.tc_mapping[0], vsi->info.tc_mapping[1], 644 vsi->info.tc_mapping[2], vsi->info.tc_mapping[3], 645 vsi->info.tc_mapping[4], vsi->info.tc_mapping[5], 646 vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]); 647 dev_info(&pf->pdev->dev, 648 " info: queueing_opt_flags = 0x%02x queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n", 649 vsi->info.queueing_opt_flags, 650 vsi->info.queueing_opt_reserved[0], 651 vsi->info.queueing_opt_reserved[1], 652 vsi->info.queueing_opt_reserved[2]); 653 dev_info(&pf->pdev->dev, 654 " info: up_enable_bits = 0x%02x\n", 655 vsi->info.up_enable_bits); 656 dev_info(&pf->pdev->dev, 657 " info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n", 658 vsi->info.sched_reserved, vsi->info.outer_up_table); 659 dev_info(&pf->pdev->dev, 660 " info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n", 661 vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1], 662 vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3], 663 vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5], 664 vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]); 665 dev_info(&pf->pdev->dev, 666 " info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n", 667 vsi->info.qs_handle[0], vsi->info.qs_handle[1], 668 vsi->info.qs_handle[2], vsi->info.qs_handle[3], 669 vsi->info.qs_handle[4], vsi->info.qs_handle[5], 670 vsi->info.qs_handle[6], vsi->info.qs_handle[7]); 671 dev_info(&pf->pdev->dev, 672 " info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n", 673 vsi->info.stat_counter_idx, vsi->info.sched_id); 674 dev_info(&pf->pdev->dev, 675 " 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", 676 vsi->info.resp_reserved[0], vsi->info.resp_reserved[1], 677 vsi->info.resp_reserved[2], vsi->info.resp_reserved[3], 678 vsi->info.resp_reserved[4], vsi->info.resp_reserved[5], 679 vsi->info.resp_reserved[6], vsi->info.resp_reserved[7], 680 vsi->info.resp_reserved[8], vsi->info.resp_reserved[9], 681 vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]); 682 if (vsi->back) 683 dev_info(&pf->pdev->dev, " PF = %p\n", vsi->back); 684 dev_info(&pf->pdev->dev, " idx = %d\n", vsi->idx); 685 dev_info(&pf->pdev->dev, 686 " tc_config: numtc = %d, enabled_tc = 0x%x\n", 687 vsi->tc_config.numtc, vsi->tc_config.enabled_tc); 688 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 689 dev_info(&pf->pdev->dev, 690 " tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n", 691 i, vsi->tc_config.tc_info[i].qoffset, 692 vsi->tc_config.tc_info[i].qcount, 693 vsi->tc_config.tc_info[i].netdev_tc); 694 } 695 dev_info(&pf->pdev->dev, 696 " bw: bw_limit = %d, bw_max_quanta = %d\n", 697 vsi->bw_limit, vsi->bw_max_quanta); 698 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 699 dev_info(&pf->pdev->dev, 700 " bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n", 701 i, vsi->bw_ets_share_credits[i], 702 vsi->bw_ets_limit_credits[i], 703 vsi->bw_ets_max_quanta[i]); 704 } 705 #ifdef I40E_FCOE 706 if (vsi->type == I40E_VSI_FCOE) { 707 dev_info(&pf->pdev->dev, 708 " fcoe_stats: rx_packets = %llu, rx_dwords = %llu, rx_dropped = %llu\n", 709 vsi->fcoe_stats.rx_fcoe_packets, 710 vsi->fcoe_stats.rx_fcoe_dwords, 711 vsi->fcoe_stats.rx_fcoe_dropped); 712 dev_info(&pf->pdev->dev, 713 " fcoe_stats: tx_packets = %llu, tx_dwords = %llu\n", 714 vsi->fcoe_stats.tx_fcoe_packets, 715 vsi->fcoe_stats.tx_fcoe_dwords); 716 dev_info(&pf->pdev->dev, 717 " fcoe_stats: bad_crc = %llu, last_error = %llu\n", 718 vsi->fcoe_stats.fcoe_bad_fccrc, 719 vsi->fcoe_stats.fcoe_last_error); 720 dev_info(&pf->pdev->dev, " fcoe_stats: ddp_count = %llu\n", 721 vsi->fcoe_stats.fcoe_ddp_count); 722 } 723 #endif 724 } 725 726 /** 727 * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum 728 * @pf: the i40e_pf created in command write 729 **/ 730 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf) 731 { 732 struct i40e_adminq_ring *ring; 733 struct i40e_hw *hw = &pf->hw; 734 char hdr[32]; 735 int i; 736 737 snprintf(hdr, sizeof(hdr), "%s %s: ", 738 dev_driver_string(&pf->pdev->dev), 739 dev_name(&pf->pdev->dev)); 740 741 /* first the send (command) ring, then the receive (event) ring */ 742 dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n"); 743 ring = &(hw->aq.asq); 744 for (i = 0; i < ring->count; i++) { 745 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i); 746 dev_info(&pf->pdev->dev, 747 " at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n", 748 i, d->flags, d->opcode, d->datalen, d->retval, 749 d->cookie_high, d->cookie_low); 750 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE, 751 16, 1, d->params.raw, 16, 0); 752 } 753 754 dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n"); 755 ring = &(hw->aq.arq); 756 for (i = 0; i < ring->count; i++) { 757 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i); 758 dev_info(&pf->pdev->dev, 759 " ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n", 760 i, d->flags, d->opcode, d->datalen, d->retval, 761 d->cookie_high, d->cookie_low); 762 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE, 763 16, 1, d->params.raw, 16, 0); 764 } 765 } 766 767 /** 768 * i40e_dbg_dump_desc - handles dump desc write into command datum 769 * @cnt: number of arguments that the user supplied 770 * @vsi_seid: vsi id entered by user 771 * @ring_id: ring id entered by user 772 * @desc_n: descriptor number entered by user 773 * @pf: the i40e_pf created in command write 774 * @is_rx_ring: true if rx, false if tx 775 **/ 776 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n, 777 struct i40e_pf *pf, bool is_rx_ring) 778 { 779 struct i40e_tx_desc *txd; 780 union i40e_rx_desc *rxd; 781 struct i40e_ring *ring; 782 struct i40e_vsi *vsi; 783 int i; 784 785 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 786 if (!vsi) { 787 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid); 788 return; 789 } 790 if (ring_id >= vsi->num_queue_pairs || ring_id < 0) { 791 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id); 792 return; 793 } 794 if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) { 795 dev_info(&pf->pdev->dev, 796 "descriptor rings have not been allocated for vsi %d\n", 797 vsi_seid); 798 return; 799 } 800 801 ring = kmemdup(is_rx_ring 802 ? vsi->rx_rings[ring_id] : vsi->tx_rings[ring_id], 803 sizeof(*ring), GFP_KERNEL); 804 if (!ring) 805 return; 806 807 if (cnt == 2) { 808 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n", 809 vsi_seid, is_rx_ring ? "rx" : "tx", ring_id); 810 for (i = 0; i < ring->count; i++) { 811 if (!is_rx_ring) { 812 txd = I40E_TX_DESC(ring, i); 813 dev_info(&pf->pdev->dev, 814 " d[%03i] = 0x%016llx 0x%016llx\n", 815 i, txd->buffer_addr, 816 txd->cmd_type_offset_bsz); 817 } else if (sizeof(union i40e_rx_desc) == 818 sizeof(union i40e_16byte_rx_desc)) { 819 rxd = I40E_RX_DESC(ring, i); 820 dev_info(&pf->pdev->dev, 821 " d[%03i] = 0x%016llx 0x%016llx\n", 822 i, rxd->read.pkt_addr, 823 rxd->read.hdr_addr); 824 } else { 825 rxd = I40E_RX_DESC(ring, i); 826 dev_info(&pf->pdev->dev, 827 " d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n", 828 i, rxd->read.pkt_addr, 829 rxd->read.hdr_addr, 830 rxd->read.rsvd1, rxd->read.rsvd2); 831 } 832 } 833 } else if (cnt == 3) { 834 if (desc_n >= ring->count || desc_n < 0) { 835 dev_info(&pf->pdev->dev, 836 "descriptor %d not found\n", desc_n); 837 goto out; 838 } 839 if (!is_rx_ring) { 840 txd = I40E_TX_DESC(ring, desc_n); 841 dev_info(&pf->pdev->dev, 842 "vsi = %02i tx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n", 843 vsi_seid, ring_id, desc_n, 844 txd->buffer_addr, txd->cmd_type_offset_bsz); 845 } else if (sizeof(union i40e_rx_desc) == 846 sizeof(union i40e_16byte_rx_desc)) { 847 rxd = I40E_RX_DESC(ring, desc_n); 848 dev_info(&pf->pdev->dev, 849 "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n", 850 vsi_seid, ring_id, desc_n, 851 rxd->read.pkt_addr, rxd->read.hdr_addr); 852 } else { 853 rxd = I40E_RX_DESC(ring, desc_n); 854 dev_info(&pf->pdev->dev, 855 "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n", 856 vsi_seid, ring_id, desc_n, 857 rxd->read.pkt_addr, rxd->read.hdr_addr, 858 rxd->read.rsvd1, rxd->read.rsvd2); 859 } 860 } else { 861 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n"); 862 } 863 864 out: 865 kfree(ring); 866 } 867 868 /** 869 * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum 870 * @pf: the i40e_pf created in command write 871 **/ 872 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf) 873 { 874 int i; 875 876 for (i = 0; i < pf->num_alloc_vsi; i++) 877 if (pf->vsi[i]) 878 dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n", 879 i, pf->vsi[i]->seid); 880 } 881 882 /** 883 * i40e_dbg_dump_stats - handles dump stats write into command datum 884 * @pf: the i40e_pf created in command write 885 * @estats: the eth stats structure to be dumped 886 **/ 887 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf, 888 struct i40e_eth_stats *estats) 889 { 890 dev_info(&pf->pdev->dev, " ethstats:\n"); 891 dev_info(&pf->pdev->dev, 892 " rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n", 893 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast); 894 dev_info(&pf->pdev->dev, 895 " rx_broadcast = \t%lld \trx_discards = \t\t%lld\n", 896 estats->rx_broadcast, estats->rx_discards); 897 dev_info(&pf->pdev->dev, 898 " rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n", 899 estats->rx_unknown_protocol, estats->tx_bytes); 900 dev_info(&pf->pdev->dev, 901 " tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n", 902 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast); 903 dev_info(&pf->pdev->dev, 904 " tx_discards = \t%lld \ttx_errors = \t\t%lld\n", 905 estats->tx_discards, estats->tx_errors); 906 } 907 908 /** 909 * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb 910 * @pf: the i40e_pf created in command write 911 * @seid: the seid the user put in 912 **/ 913 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid) 914 { 915 struct i40e_veb *veb; 916 917 if ((seid < I40E_BASE_VEB_SEID) || 918 (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) { 919 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid); 920 return; 921 } 922 923 veb = i40e_dbg_find_veb(pf, seid); 924 if (!veb) { 925 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid); 926 return; 927 } 928 dev_info(&pf->pdev->dev, 929 "veb idx=%d,%d stats_ic=%d seid=%d uplink=%d mode=%s\n", 930 veb->idx, veb->veb_idx, veb->stats_idx, veb->seid, 931 veb->uplink_seid, 932 veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); 933 i40e_dbg_dump_eth_stats(pf, &veb->stats); 934 } 935 936 /** 937 * i40e_dbg_dump_veb_all - dumps all known veb's stats 938 * @pf: the i40e_pf created in command write 939 **/ 940 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf) 941 { 942 struct i40e_veb *veb; 943 int i; 944 945 for (i = 0; i < I40E_MAX_VEB; i++) { 946 veb = pf->veb[i]; 947 if (veb) 948 i40e_dbg_dump_veb_seid(pf, veb->seid); 949 } 950 } 951 952 /** 953 * i40e_dbg_cmd_fd_ctrl - Enable/disable FD sideband/ATR 954 * @pf: the PF that would be altered 955 * @flag: flag that needs enabling or disabling 956 * @enable: Enable/disable FD SD/ATR 957 **/ 958 static void i40e_dbg_cmd_fd_ctrl(struct i40e_pf *pf, u64 flag, bool enable) 959 { 960 if (enable) { 961 pf->flags |= flag; 962 } else { 963 pf->flags &= ~flag; 964 pf->auto_disable_flags |= flag; 965 } 966 dev_info(&pf->pdev->dev, "requesting a PF reset\n"); 967 i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED)); 968 } 969 970 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4) 971 /** 972 * i40e_dbg_command_write - write into command datum 973 * @filp: the opened file 974 * @buffer: where to find the user's data 975 * @count: the length of the user's data 976 * @ppos: file position offset 977 **/ 978 static ssize_t i40e_dbg_command_write(struct file *filp, 979 const char __user *buffer, 980 size_t count, loff_t *ppos) 981 { 982 struct i40e_pf *pf = filp->private_data; 983 char *cmd_buf, *cmd_buf_tmp; 984 int bytes_not_copied; 985 struct i40e_vsi *vsi; 986 int vsi_seid; 987 int veb_seid; 988 int cnt; 989 990 /* don't allow partial writes */ 991 if (*ppos != 0) 992 return 0; 993 994 cmd_buf = kzalloc(count + 1, GFP_KERNEL); 995 if (!cmd_buf) 996 return count; 997 bytes_not_copied = copy_from_user(cmd_buf, buffer, count); 998 if (bytes_not_copied < 0) { 999 kfree(cmd_buf); 1000 return bytes_not_copied; 1001 } 1002 if (bytes_not_copied > 0) 1003 count -= bytes_not_copied; 1004 cmd_buf[count] = '\0'; 1005 1006 cmd_buf_tmp = strchr(cmd_buf, '\n'); 1007 if (cmd_buf_tmp) { 1008 *cmd_buf_tmp = '\0'; 1009 count = cmd_buf_tmp - cmd_buf + 1; 1010 } 1011 1012 if (strncmp(cmd_buf, "add vsi", 7) == 0) { 1013 vsi_seid = -1; 1014 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid); 1015 if (cnt == 0) { 1016 /* default to PF VSI */ 1017 vsi_seid = pf->vsi[pf->lan_vsi]->seid; 1018 } else if (vsi_seid < 0) { 1019 dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n", 1020 vsi_seid); 1021 goto command_write_done; 1022 } 1023 1024 /* By default we are in VEPA mode, if this is the first VF/VMDq 1025 * VSI to be added switch to VEB mode. 1026 */ 1027 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { 1028 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; 1029 i40e_do_reset_safe(pf, 1030 BIT_ULL(__I40E_PF_RESET_REQUESTED)); 1031 } 1032 1033 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0); 1034 if (vsi) 1035 dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n", 1036 vsi->seid, vsi->uplink_seid); 1037 else 1038 dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf); 1039 1040 } else if (strncmp(cmd_buf, "del vsi", 7) == 0) { 1041 sscanf(&cmd_buf[7], "%i", &vsi_seid); 1042 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1043 if (!vsi) { 1044 dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n", 1045 vsi_seid); 1046 goto command_write_done; 1047 } 1048 1049 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid); 1050 i40e_vsi_release(vsi); 1051 1052 } else if (strncmp(cmd_buf, "add relay", 9) == 0) { 1053 struct i40e_veb *veb; 1054 int uplink_seid, i; 1055 1056 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid); 1057 if (cnt != 2) { 1058 dev_info(&pf->pdev->dev, 1059 "add relay: bad command string, cnt=%d\n", 1060 cnt); 1061 goto command_write_done; 1062 } else if (uplink_seid < 0) { 1063 dev_info(&pf->pdev->dev, 1064 "add relay %d: bad uplink seid\n", 1065 uplink_seid); 1066 goto command_write_done; 1067 } 1068 1069 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1070 if (!vsi) { 1071 dev_info(&pf->pdev->dev, 1072 "add relay: VSI %d not found\n", vsi_seid); 1073 goto command_write_done; 1074 } 1075 1076 for (i = 0; i < I40E_MAX_VEB; i++) 1077 if (pf->veb[i] && pf->veb[i]->seid == uplink_seid) 1078 break; 1079 if (i >= I40E_MAX_VEB && uplink_seid != 0 && 1080 uplink_seid != pf->mac_seid) { 1081 dev_info(&pf->pdev->dev, 1082 "add relay: relay uplink %d not found\n", 1083 uplink_seid); 1084 goto command_write_done; 1085 } 1086 1087 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid, 1088 vsi->tc_config.enabled_tc); 1089 if (veb) 1090 dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid); 1091 else 1092 dev_info(&pf->pdev->dev, "add relay failed\n"); 1093 1094 } else if (strncmp(cmd_buf, "del relay", 9) == 0) { 1095 int i; 1096 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid); 1097 if (cnt != 1) { 1098 dev_info(&pf->pdev->dev, 1099 "del relay: bad command string, cnt=%d\n", 1100 cnt); 1101 goto command_write_done; 1102 } else if (veb_seid < 0) { 1103 dev_info(&pf->pdev->dev, 1104 "del relay %d: bad relay seid\n", veb_seid); 1105 goto command_write_done; 1106 } 1107 1108 /* find the veb */ 1109 for (i = 0; i < I40E_MAX_VEB; i++) 1110 if (pf->veb[i] && pf->veb[i]->seid == veb_seid) 1111 break; 1112 if (i >= I40E_MAX_VEB) { 1113 dev_info(&pf->pdev->dev, 1114 "del relay: relay %d not found\n", veb_seid); 1115 goto command_write_done; 1116 } 1117 1118 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid); 1119 i40e_veb_release(pf->veb[i]); 1120 1121 } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) { 1122 struct i40e_mac_filter *f; 1123 int vlan = 0; 1124 u8 ma[6]; 1125 int ret; 1126 1127 cnt = sscanf(&cmd_buf[11], 1128 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i", 1129 &vsi_seid, 1130 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5], 1131 &vlan); 1132 if (cnt == 7) { 1133 vlan = 0; 1134 } else if (cnt != 8) { 1135 dev_info(&pf->pdev->dev, 1136 "add macaddr: bad command string, cnt=%d\n", 1137 cnt); 1138 goto command_write_done; 1139 } 1140 1141 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1142 if (!vsi) { 1143 dev_info(&pf->pdev->dev, 1144 "add macaddr: VSI %d not found\n", vsi_seid); 1145 goto command_write_done; 1146 } 1147 1148 f = i40e_add_filter(vsi, ma, vlan, false, false); 1149 ret = i40e_sync_vsi_filters(vsi); 1150 if (f && !ret) 1151 dev_info(&pf->pdev->dev, 1152 "add macaddr: %pM vlan=%d added to VSI %d\n", 1153 ma, vlan, vsi_seid); 1154 else 1155 dev_info(&pf->pdev->dev, 1156 "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n", 1157 ma, vlan, vsi_seid, f, ret); 1158 1159 } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) { 1160 int vlan = 0; 1161 u8 ma[6]; 1162 int ret; 1163 1164 cnt = sscanf(&cmd_buf[11], 1165 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i", 1166 &vsi_seid, 1167 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5], 1168 &vlan); 1169 if (cnt == 7) { 1170 vlan = 0; 1171 } else if (cnt != 8) { 1172 dev_info(&pf->pdev->dev, 1173 "del macaddr: bad command string, cnt=%d\n", 1174 cnt); 1175 goto command_write_done; 1176 } 1177 1178 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1179 if (!vsi) { 1180 dev_info(&pf->pdev->dev, 1181 "del macaddr: VSI %d not found\n", vsi_seid); 1182 goto command_write_done; 1183 } 1184 1185 i40e_del_filter(vsi, ma, vlan, false, false); 1186 ret = i40e_sync_vsi_filters(vsi); 1187 if (!ret) 1188 dev_info(&pf->pdev->dev, 1189 "del macaddr: %pM vlan=%d removed from VSI %d\n", 1190 ma, vlan, vsi_seid); 1191 else 1192 dev_info(&pf->pdev->dev, 1193 "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n", 1194 ma, vlan, vsi_seid, ret); 1195 1196 } else if (strncmp(cmd_buf, "add pvid", 8) == 0) { 1197 i40e_status ret; 1198 u16 vid; 1199 unsigned int v; 1200 1201 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v); 1202 if (cnt != 2) { 1203 dev_info(&pf->pdev->dev, 1204 "add pvid: bad command string, cnt=%d\n", cnt); 1205 goto command_write_done; 1206 } 1207 1208 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1209 if (!vsi) { 1210 dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n", 1211 vsi_seid); 1212 goto command_write_done; 1213 } 1214 1215 vid = v; 1216 ret = i40e_vsi_add_pvid(vsi, vid); 1217 if (!ret) 1218 dev_info(&pf->pdev->dev, 1219 "add pvid: %d added to VSI %d\n", 1220 vid, vsi_seid); 1221 else 1222 dev_info(&pf->pdev->dev, 1223 "add pvid: %d to VSI %d failed, ret=%d\n", 1224 vid, vsi_seid, ret); 1225 1226 } else if (strncmp(cmd_buf, "del pvid", 8) == 0) { 1227 1228 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1229 if (cnt != 1) { 1230 dev_info(&pf->pdev->dev, 1231 "del pvid: bad command string, cnt=%d\n", 1232 cnt); 1233 goto command_write_done; 1234 } 1235 1236 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1237 if (!vsi) { 1238 dev_info(&pf->pdev->dev, 1239 "del pvid: VSI %d not found\n", vsi_seid); 1240 goto command_write_done; 1241 } 1242 1243 i40e_vsi_remove_pvid(vsi); 1244 dev_info(&pf->pdev->dev, 1245 "del pvid: removed from VSI %d\n", vsi_seid); 1246 1247 } else if (strncmp(cmd_buf, "dump", 4) == 0) { 1248 if (strncmp(&cmd_buf[5], "switch", 6) == 0) { 1249 i40e_fetch_switch_configuration(pf, true); 1250 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) { 1251 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1252 if (cnt > 0) 1253 i40e_dbg_dump_vsi_seid(pf, vsi_seid); 1254 else 1255 i40e_dbg_dump_vsi_no_seid(pf); 1256 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) { 1257 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1258 if (cnt > 0) 1259 i40e_dbg_dump_veb_seid(pf, vsi_seid); 1260 else 1261 i40e_dbg_dump_veb_all(pf); 1262 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) { 1263 int ring_id, desc_n; 1264 if (strncmp(&cmd_buf[10], "rx", 2) == 0) { 1265 cnt = sscanf(&cmd_buf[12], "%i %i %i", 1266 &vsi_seid, &ring_id, &desc_n); 1267 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id, 1268 desc_n, pf, true); 1269 } else if (strncmp(&cmd_buf[10], "tx", 2) 1270 == 0) { 1271 cnt = sscanf(&cmd_buf[12], "%i %i %i", 1272 &vsi_seid, &ring_id, &desc_n); 1273 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id, 1274 desc_n, pf, false); 1275 } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) { 1276 i40e_dbg_dump_aq_desc(pf); 1277 } else { 1278 dev_info(&pf->pdev->dev, 1279 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n"); 1280 dev_info(&pf->pdev->dev, 1281 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n"); 1282 dev_info(&pf->pdev->dev, "dump desc aq\n"); 1283 } 1284 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) { 1285 dev_info(&pf->pdev->dev, 1286 "core reset count: %d\n", pf->corer_count); 1287 dev_info(&pf->pdev->dev, 1288 "global reset count: %d\n", pf->globr_count); 1289 dev_info(&pf->pdev->dev, 1290 "emp reset count: %d\n", pf->empr_count); 1291 dev_info(&pf->pdev->dev, 1292 "pf reset count: %d\n", pf->pfr_count); 1293 dev_info(&pf->pdev->dev, 1294 "pf tx sluggish count: %d\n", 1295 pf->tx_sluggish_count); 1296 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) { 1297 struct i40e_aqc_query_port_ets_config_resp *bw_data; 1298 struct i40e_dcbx_config *cfg = 1299 &pf->hw.local_dcbx_config; 1300 struct i40e_dcbx_config *r_cfg = 1301 &pf->hw.remote_dcbx_config; 1302 int i, ret; 1303 1304 bw_data = kzalloc(sizeof( 1305 struct i40e_aqc_query_port_ets_config_resp), 1306 GFP_KERNEL); 1307 if (!bw_data) { 1308 ret = -ENOMEM; 1309 goto command_write_done; 1310 } 1311 1312 ret = i40e_aq_query_port_ets_config(&pf->hw, 1313 pf->mac_seid, 1314 bw_data, NULL); 1315 if (ret) { 1316 dev_info(&pf->pdev->dev, 1317 "Query Port ETS Config AQ command failed =0x%x\n", 1318 pf->hw.aq.asq_last_status); 1319 kfree(bw_data); 1320 bw_data = NULL; 1321 goto command_write_done; 1322 } 1323 dev_info(&pf->pdev->dev, 1324 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n", 1325 bw_data->tc_valid_bits, 1326 bw_data->tc_strict_priority_bits, 1327 le16_to_cpu(bw_data->tc_bw_max[0]), 1328 le16_to_cpu(bw_data->tc_bw_max[1])); 1329 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1330 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n", 1331 bw_data->tc_bw_share_credits[i], 1332 le16_to_cpu(bw_data->tc_bw_limits[i])); 1333 } 1334 1335 kfree(bw_data); 1336 bw_data = NULL; 1337 1338 dev_info(&pf->pdev->dev, 1339 "port dcbx_mode=%d\n", cfg->dcbx_mode); 1340 dev_info(&pf->pdev->dev, 1341 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n", 1342 cfg->etscfg.willing, cfg->etscfg.cbs, 1343 cfg->etscfg.maxtcs); 1344 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1345 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1346 i, cfg->etscfg.prioritytable[i], 1347 cfg->etscfg.tcbwtable[i], 1348 cfg->etscfg.tsatable[i]); 1349 } 1350 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1351 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1352 i, cfg->etsrec.prioritytable[i], 1353 cfg->etsrec.tcbwtable[i], 1354 cfg->etsrec.tsatable[i]); 1355 } 1356 dev_info(&pf->pdev->dev, 1357 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n", 1358 cfg->pfc.willing, cfg->pfc.mbc, 1359 cfg->pfc.pfccap, cfg->pfc.pfcenable); 1360 dev_info(&pf->pdev->dev, 1361 "port app_table: num_apps=%d\n", cfg->numapps); 1362 for (i = 0; i < cfg->numapps; i++) { 1363 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n", 1364 i, cfg->app[i].priority, 1365 cfg->app[i].selector, 1366 cfg->app[i].protocolid); 1367 } 1368 /* Peer TLV DCBX data */ 1369 dev_info(&pf->pdev->dev, 1370 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n", 1371 r_cfg->etscfg.willing, 1372 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs); 1373 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1374 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1375 i, r_cfg->etscfg.prioritytable[i], 1376 r_cfg->etscfg.tcbwtable[i], 1377 r_cfg->etscfg.tsatable[i]); 1378 } 1379 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1380 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1381 i, r_cfg->etsrec.prioritytable[i], 1382 r_cfg->etsrec.tcbwtable[i], 1383 r_cfg->etsrec.tsatable[i]); 1384 } 1385 dev_info(&pf->pdev->dev, 1386 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n", 1387 r_cfg->pfc.willing, 1388 r_cfg->pfc.mbc, 1389 r_cfg->pfc.pfccap, 1390 r_cfg->pfc.pfcenable); 1391 dev_info(&pf->pdev->dev, 1392 "remote port app_table: num_apps=%d\n", 1393 r_cfg->numapps); 1394 for (i = 0; i < r_cfg->numapps; i++) { 1395 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n", 1396 i, r_cfg->app[i].priority, 1397 r_cfg->app[i].selector, 1398 r_cfg->app[i].protocolid); 1399 } 1400 } else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) { 1401 int cluster_id, table_id; 1402 int index, ret; 1403 u16 buff_len = 4096; 1404 u32 next_index; 1405 u8 next_table; 1406 u8 *buff; 1407 u16 rlen; 1408 1409 cnt = sscanf(&cmd_buf[18], "%i %i %i", 1410 &cluster_id, &table_id, &index); 1411 if (cnt != 3) { 1412 dev_info(&pf->pdev->dev, 1413 "dump debug fwdata <cluster_id> <table_id> <index>\n"); 1414 goto command_write_done; 1415 } 1416 1417 dev_info(&pf->pdev->dev, 1418 "AQ debug dump fwdata params %x %x %x %x\n", 1419 cluster_id, table_id, index, buff_len); 1420 buff = kzalloc(buff_len, GFP_KERNEL); 1421 if (!buff) 1422 goto command_write_done; 1423 1424 ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id, 1425 index, buff_len, buff, &rlen, 1426 &next_table, &next_index, 1427 NULL); 1428 if (ret) { 1429 dev_info(&pf->pdev->dev, 1430 "debug dump fwdata AQ Failed %d 0x%x\n", 1431 ret, pf->hw.aq.asq_last_status); 1432 kfree(buff); 1433 buff = NULL; 1434 goto command_write_done; 1435 } 1436 dev_info(&pf->pdev->dev, 1437 "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n", 1438 rlen, next_table, next_index); 1439 print_hex_dump(KERN_INFO, "AQ buffer WB: ", 1440 DUMP_PREFIX_OFFSET, 16, 1, 1441 buff, rlen, true); 1442 kfree(buff); 1443 buff = NULL; 1444 } else { 1445 dev_info(&pf->pdev->dev, 1446 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n"); 1447 dev_info(&pf->pdev->dev, "dump switch\n"); 1448 dev_info(&pf->pdev->dev, "dump vsi [seid]\n"); 1449 dev_info(&pf->pdev->dev, "dump reset stats\n"); 1450 dev_info(&pf->pdev->dev, "dump port\n"); 1451 dev_info(&pf->pdev->dev, 1452 "dump debug fwdata <cluster_id> <table_id> <index>\n"); 1453 } 1454 1455 } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) { 1456 u32 level; 1457 cnt = sscanf(&cmd_buf[10], "%i", &level); 1458 if (cnt) { 1459 if (I40E_DEBUG_USER & level) { 1460 pf->hw.debug_mask = level; 1461 dev_info(&pf->pdev->dev, 1462 "set hw.debug_mask = 0x%08x\n", 1463 pf->hw.debug_mask); 1464 } 1465 pf->msg_enable = level; 1466 dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n", 1467 pf->msg_enable); 1468 } else { 1469 dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n", 1470 pf->msg_enable); 1471 } 1472 } else if (strncmp(cmd_buf, "pfr", 3) == 0) { 1473 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n"); 1474 i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED)); 1475 1476 } else if (strncmp(cmd_buf, "corer", 5) == 0) { 1477 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n"); 1478 i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED)); 1479 1480 } else if (strncmp(cmd_buf, "globr", 5) == 0) { 1481 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n"); 1482 i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED)); 1483 1484 } else if (strncmp(cmd_buf, "empr", 4) == 0) { 1485 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n"); 1486 i40e_do_reset_safe(pf, BIT(__I40E_EMP_RESET_REQUESTED)); 1487 1488 } else if (strncmp(cmd_buf, "read", 4) == 0) { 1489 u32 address; 1490 u32 value; 1491 cnt = sscanf(&cmd_buf[4], "%i", &address); 1492 if (cnt != 1) { 1493 dev_info(&pf->pdev->dev, "read <reg>\n"); 1494 goto command_write_done; 1495 } 1496 1497 /* check the range on address */ 1498 if (address >= I40E_MAX_REGISTER) { 1499 dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n", 1500 address); 1501 goto command_write_done; 1502 } 1503 1504 value = rd32(&pf->hw, address); 1505 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n", 1506 address, value); 1507 1508 } else if (strncmp(cmd_buf, "write", 5) == 0) { 1509 u32 address, value; 1510 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value); 1511 if (cnt != 2) { 1512 dev_info(&pf->pdev->dev, "write <reg> <value>\n"); 1513 goto command_write_done; 1514 } 1515 1516 /* check the range on address */ 1517 if (address >= I40E_MAX_REGISTER) { 1518 dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n", 1519 address); 1520 goto command_write_done; 1521 } 1522 wr32(&pf->hw, address, value); 1523 value = rd32(&pf->hw, address); 1524 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n", 1525 address, value); 1526 } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) { 1527 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) { 1528 cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid); 1529 if (cnt == 0) { 1530 int i; 1531 for (i = 0; i < pf->num_alloc_vsi; i++) 1532 i40e_vsi_reset_stats(pf->vsi[i]); 1533 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n"); 1534 } else if (cnt == 1) { 1535 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1536 if (!vsi) { 1537 dev_info(&pf->pdev->dev, 1538 "clear_stats vsi: bad vsi %d\n", 1539 vsi_seid); 1540 goto command_write_done; 1541 } 1542 i40e_vsi_reset_stats(vsi); 1543 dev_info(&pf->pdev->dev, 1544 "vsi clear stats called for vsi %d\n", 1545 vsi_seid); 1546 } else { 1547 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n"); 1548 } 1549 } else if (strncmp(&cmd_buf[12], "port", 4) == 0) { 1550 if (pf->hw.partition_id == 1) { 1551 i40e_pf_reset_stats(pf); 1552 dev_info(&pf->pdev->dev, "port stats cleared\n"); 1553 } else { 1554 dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n"); 1555 } 1556 } else { 1557 dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n"); 1558 } 1559 } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) { 1560 struct i40e_aq_desc *desc; 1561 i40e_status ret; 1562 1563 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL); 1564 if (!desc) 1565 goto command_write_done; 1566 cnt = sscanf(&cmd_buf[11], 1567 "%hi %hi %hi %hi %i %i %i %i %i %i", 1568 &desc->flags, 1569 &desc->opcode, &desc->datalen, &desc->retval, 1570 &desc->cookie_high, &desc->cookie_low, 1571 &desc->params.internal.param0, 1572 &desc->params.internal.param1, 1573 &desc->params.internal.param2, 1574 &desc->params.internal.param3); 1575 if (cnt != 10) { 1576 dev_info(&pf->pdev->dev, 1577 "send aq_cmd: bad command string, cnt=%d\n", 1578 cnt); 1579 kfree(desc); 1580 desc = NULL; 1581 goto command_write_done; 1582 } 1583 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL); 1584 if (!ret) { 1585 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n"); 1586 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) { 1587 dev_info(&pf->pdev->dev, 1588 "AQ command send failed Opcode %x AQ Error: %d\n", 1589 desc->opcode, pf->hw.aq.asq_last_status); 1590 } else { 1591 dev_info(&pf->pdev->dev, 1592 "AQ command send failed Opcode %x Status: %d\n", 1593 desc->opcode, ret); 1594 } 1595 dev_info(&pf->pdev->dev, 1596 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", 1597 desc->flags, desc->opcode, desc->datalen, desc->retval, 1598 desc->cookie_high, desc->cookie_low, 1599 desc->params.internal.param0, 1600 desc->params.internal.param1, 1601 desc->params.internal.param2, 1602 desc->params.internal.param3); 1603 kfree(desc); 1604 desc = NULL; 1605 } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) { 1606 struct i40e_aq_desc *desc; 1607 i40e_status ret; 1608 u16 buffer_len; 1609 u8 *buff; 1610 1611 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL); 1612 if (!desc) 1613 goto command_write_done; 1614 cnt = sscanf(&cmd_buf[20], 1615 "%hi %hi %hi %hi %i %i %i %i %i %i %hi", 1616 &desc->flags, 1617 &desc->opcode, &desc->datalen, &desc->retval, 1618 &desc->cookie_high, &desc->cookie_low, 1619 &desc->params.internal.param0, 1620 &desc->params.internal.param1, 1621 &desc->params.internal.param2, 1622 &desc->params.internal.param3, 1623 &buffer_len); 1624 if (cnt != 11) { 1625 dev_info(&pf->pdev->dev, 1626 "send indirect aq_cmd: bad command string, cnt=%d\n", 1627 cnt); 1628 kfree(desc); 1629 desc = NULL; 1630 goto command_write_done; 1631 } 1632 /* Just stub a buffer big enough in case user messed up */ 1633 if (buffer_len == 0) 1634 buffer_len = 1280; 1635 1636 buff = kzalloc(buffer_len, GFP_KERNEL); 1637 if (!buff) { 1638 kfree(desc); 1639 desc = NULL; 1640 goto command_write_done; 1641 } 1642 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF); 1643 ret = i40e_asq_send_command(&pf->hw, desc, buff, 1644 buffer_len, NULL); 1645 if (!ret) { 1646 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n"); 1647 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) { 1648 dev_info(&pf->pdev->dev, 1649 "AQ command send failed Opcode %x AQ Error: %d\n", 1650 desc->opcode, pf->hw.aq.asq_last_status); 1651 } else { 1652 dev_info(&pf->pdev->dev, 1653 "AQ command send failed Opcode %x Status: %d\n", 1654 desc->opcode, ret); 1655 } 1656 dev_info(&pf->pdev->dev, 1657 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", 1658 desc->flags, desc->opcode, desc->datalen, desc->retval, 1659 desc->cookie_high, desc->cookie_low, 1660 desc->params.internal.param0, 1661 desc->params.internal.param1, 1662 desc->params.internal.param2, 1663 desc->params.internal.param3); 1664 print_hex_dump(KERN_INFO, "AQ buffer WB: ", 1665 DUMP_PREFIX_OFFSET, 16, 1, 1666 buff, buffer_len, true); 1667 kfree(buff); 1668 buff = NULL; 1669 kfree(desc); 1670 desc = NULL; 1671 } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) || 1672 (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) { 1673 struct i40e_fdir_filter fd_data; 1674 u16 packet_len, i, j = 0; 1675 char *asc_packet; 1676 u8 *raw_packet; 1677 bool add = false; 1678 int ret; 1679 1680 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 1681 goto command_write_done; 1682 1683 if (strncmp(cmd_buf, "add", 3) == 0) 1684 add = true; 1685 1686 if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)) 1687 goto command_write_done; 1688 1689 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE, 1690 GFP_KERNEL); 1691 if (!asc_packet) 1692 goto command_write_done; 1693 1694 raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE, 1695 GFP_KERNEL); 1696 1697 if (!raw_packet) { 1698 kfree(asc_packet); 1699 asc_packet = NULL; 1700 goto command_write_done; 1701 } 1702 1703 cnt = sscanf(&cmd_buf[13], 1704 "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s", 1705 &fd_data.q_index, 1706 &fd_data.flex_off, &fd_data.pctype, 1707 &fd_data.dest_vsi, &fd_data.dest_ctl, 1708 &fd_data.fd_status, &fd_data.cnt_index, 1709 &fd_data.fd_id, &packet_len, asc_packet); 1710 if (cnt != 10) { 1711 dev_info(&pf->pdev->dev, 1712 "program fd_filter: bad command string, cnt=%d\n", 1713 cnt); 1714 kfree(asc_packet); 1715 asc_packet = NULL; 1716 kfree(raw_packet); 1717 goto command_write_done; 1718 } 1719 1720 /* fix packet length if user entered 0 */ 1721 if (packet_len == 0) 1722 packet_len = I40E_FDIR_MAX_RAW_PACKET_SIZE; 1723 1724 /* make sure to check the max as well */ 1725 packet_len = min_t(u16, 1726 packet_len, I40E_FDIR_MAX_RAW_PACKET_SIZE); 1727 1728 for (i = 0; i < packet_len; i++) { 1729 sscanf(&asc_packet[j], "%2hhx ", 1730 &raw_packet[i]); 1731 j += 3; 1732 } 1733 dev_info(&pf->pdev->dev, "FD raw packet dump\n"); 1734 print_hex_dump(KERN_INFO, "FD raw packet: ", 1735 DUMP_PREFIX_OFFSET, 16, 1, 1736 raw_packet, packet_len, true); 1737 ret = i40e_program_fdir_filter(&fd_data, raw_packet, pf, add); 1738 if (!ret) { 1739 dev_info(&pf->pdev->dev, "Filter command send Status : Success\n"); 1740 } else { 1741 dev_info(&pf->pdev->dev, 1742 "Filter command send failed %d\n", ret); 1743 } 1744 kfree(raw_packet); 1745 raw_packet = NULL; 1746 kfree(asc_packet); 1747 asc_packet = NULL; 1748 } else if (strncmp(cmd_buf, "fd-atr off", 10) == 0) { 1749 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, false); 1750 } else if (strncmp(cmd_buf, "fd-atr on", 9) == 0) { 1751 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, true); 1752 } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) { 1753 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n", 1754 i40e_get_current_fd_count(pf)); 1755 } else if (strncmp(cmd_buf, "lldp", 4) == 0) { 1756 if (strncmp(&cmd_buf[5], "stop", 4) == 0) { 1757 int ret; 1758 ret = i40e_aq_stop_lldp(&pf->hw, false, NULL); 1759 if (ret) { 1760 dev_info(&pf->pdev->dev, 1761 "Stop LLDP AQ command failed =0x%x\n", 1762 pf->hw.aq.asq_last_status); 1763 goto command_write_done; 1764 } 1765 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw, 1766 pf->hw.mac.addr, 1767 I40E_ETH_P_LLDP, 0, 1768 pf->vsi[pf->lan_vsi]->seid, 1769 0, true, NULL, NULL); 1770 if (ret) { 1771 dev_info(&pf->pdev->dev, 1772 "%s: Add Control Packet Filter AQ command failed =0x%x\n", 1773 __func__, pf->hw.aq.asq_last_status); 1774 goto command_write_done; 1775 } 1776 #ifdef CONFIG_I40E_DCB 1777 pf->dcbx_cap = DCB_CAP_DCBX_HOST | 1778 DCB_CAP_DCBX_VER_IEEE; 1779 #endif /* CONFIG_I40E_DCB */ 1780 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) { 1781 int ret; 1782 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw, 1783 pf->hw.mac.addr, 1784 I40E_ETH_P_LLDP, 0, 1785 pf->vsi[pf->lan_vsi]->seid, 1786 0, false, NULL, NULL); 1787 if (ret) { 1788 dev_info(&pf->pdev->dev, 1789 "%s: Remove Control Packet Filter AQ command failed =0x%x\n", 1790 __func__, pf->hw.aq.asq_last_status); 1791 /* Continue and start FW LLDP anyways */ 1792 } 1793 1794 ret = i40e_aq_start_lldp(&pf->hw, NULL); 1795 if (ret) { 1796 dev_info(&pf->pdev->dev, 1797 "Start LLDP AQ command failed =0x%x\n", 1798 pf->hw.aq.asq_last_status); 1799 goto command_write_done; 1800 } 1801 #ifdef CONFIG_I40E_DCB 1802 pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED | 1803 DCB_CAP_DCBX_VER_IEEE; 1804 #endif /* CONFIG_I40E_DCB */ 1805 } else if (strncmp(&cmd_buf[5], 1806 "get local", 9) == 0) { 1807 u16 llen, rlen; 1808 int ret; 1809 u8 *buff; 1810 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL); 1811 if (!buff) 1812 goto command_write_done; 1813 1814 ret = i40e_aq_get_lldp_mib(&pf->hw, 0, 1815 I40E_AQ_LLDP_MIB_LOCAL, 1816 buff, I40E_LLDPDU_SIZE, 1817 &llen, &rlen, NULL); 1818 if (ret) { 1819 dev_info(&pf->pdev->dev, 1820 "Get LLDP MIB (local) AQ command failed =0x%x\n", 1821 pf->hw.aq.asq_last_status); 1822 kfree(buff); 1823 buff = NULL; 1824 goto command_write_done; 1825 } 1826 dev_info(&pf->pdev->dev, "LLDP MIB (local)\n"); 1827 print_hex_dump(KERN_INFO, "LLDP MIB (local): ", 1828 DUMP_PREFIX_OFFSET, 16, 1, 1829 buff, I40E_LLDPDU_SIZE, true); 1830 kfree(buff); 1831 buff = NULL; 1832 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) { 1833 u16 llen, rlen; 1834 int ret; 1835 u8 *buff; 1836 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL); 1837 if (!buff) 1838 goto command_write_done; 1839 1840 ret = i40e_aq_get_lldp_mib(&pf->hw, 1841 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE, 1842 I40E_AQ_LLDP_MIB_REMOTE, 1843 buff, I40E_LLDPDU_SIZE, 1844 &llen, &rlen, NULL); 1845 if (ret) { 1846 dev_info(&pf->pdev->dev, 1847 "Get LLDP MIB (remote) AQ command failed =0x%x\n", 1848 pf->hw.aq.asq_last_status); 1849 kfree(buff); 1850 buff = NULL; 1851 goto command_write_done; 1852 } 1853 dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n"); 1854 print_hex_dump(KERN_INFO, "LLDP MIB (remote): ", 1855 DUMP_PREFIX_OFFSET, 16, 1, 1856 buff, I40E_LLDPDU_SIZE, true); 1857 kfree(buff); 1858 buff = NULL; 1859 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) { 1860 int ret; 1861 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw, 1862 true, NULL); 1863 if (ret) { 1864 dev_info(&pf->pdev->dev, 1865 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n", 1866 pf->hw.aq.asq_last_status); 1867 goto command_write_done; 1868 } 1869 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) { 1870 int ret; 1871 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw, 1872 false, NULL); 1873 if (ret) { 1874 dev_info(&pf->pdev->dev, 1875 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n", 1876 pf->hw.aq.asq_last_status); 1877 goto command_write_done; 1878 } 1879 } 1880 } else if (strncmp(cmd_buf, "nvm read", 8) == 0) { 1881 u16 buffer_len, bytes; 1882 u16 module; 1883 u32 offset; 1884 u16 *buff; 1885 int ret; 1886 1887 cnt = sscanf(&cmd_buf[8], "%hx %x %hx", 1888 &module, &offset, &buffer_len); 1889 if (cnt == 0) { 1890 module = 0; 1891 offset = 0; 1892 buffer_len = 0; 1893 } else if (cnt == 1) { 1894 offset = 0; 1895 buffer_len = 0; 1896 } else if (cnt == 2) { 1897 buffer_len = 0; 1898 } else if (cnt > 3) { 1899 dev_info(&pf->pdev->dev, 1900 "nvm read: bad command string, cnt=%d\n", cnt); 1901 goto command_write_done; 1902 } 1903 1904 /* set the max length */ 1905 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2); 1906 1907 bytes = 2 * buffer_len; 1908 1909 /* read at least 1k bytes, no more than 4kB */ 1910 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE); 1911 buff = kzalloc(bytes, GFP_KERNEL); 1912 if (!buff) 1913 goto command_write_done; 1914 1915 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ); 1916 if (ret) { 1917 dev_info(&pf->pdev->dev, 1918 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1919 ret, pf->hw.aq.asq_last_status); 1920 kfree(buff); 1921 goto command_write_done; 1922 } 1923 1924 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset), 1925 bytes, (u8 *)buff, true, NULL); 1926 i40e_release_nvm(&pf->hw); 1927 if (ret) { 1928 dev_info(&pf->pdev->dev, 1929 "Read NVM AQ failed err=%d status=0x%x\n", 1930 ret, pf->hw.aq.asq_last_status); 1931 } else { 1932 dev_info(&pf->pdev->dev, 1933 "Read NVM module=0x%x offset=0x%x words=%d\n", 1934 module, offset, buffer_len); 1935 if (bytes) 1936 print_hex_dump(KERN_INFO, "NVM Dump: ", 1937 DUMP_PREFIX_OFFSET, 16, 2, 1938 buff, bytes, true); 1939 } 1940 kfree(buff); 1941 buff = NULL; 1942 } else { 1943 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf); 1944 dev_info(&pf->pdev->dev, "available commands\n"); 1945 dev_info(&pf->pdev->dev, " add vsi [relay_seid]\n"); 1946 dev_info(&pf->pdev->dev, " del vsi [vsi_seid]\n"); 1947 dev_info(&pf->pdev->dev, " add relay <uplink_seid> <vsi_seid>\n"); 1948 dev_info(&pf->pdev->dev, " del relay <relay_seid>\n"); 1949 dev_info(&pf->pdev->dev, " add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n"); 1950 dev_info(&pf->pdev->dev, " del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n"); 1951 dev_info(&pf->pdev->dev, " add pvid <vsi_seid> <vid>\n"); 1952 dev_info(&pf->pdev->dev, " del pvid <vsi_seid>\n"); 1953 dev_info(&pf->pdev->dev, " dump switch\n"); 1954 dev_info(&pf->pdev->dev, " dump vsi [seid]\n"); 1955 dev_info(&pf->pdev->dev, " dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n"); 1956 dev_info(&pf->pdev->dev, " dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n"); 1957 dev_info(&pf->pdev->dev, " dump desc aq\n"); 1958 dev_info(&pf->pdev->dev, " dump reset stats\n"); 1959 dev_info(&pf->pdev->dev, " dump debug fwdata <cluster_id> <table_id> <index>\n"); 1960 dev_info(&pf->pdev->dev, " msg_enable [level]\n"); 1961 dev_info(&pf->pdev->dev, " read <reg>\n"); 1962 dev_info(&pf->pdev->dev, " write <reg> <value>\n"); 1963 dev_info(&pf->pdev->dev, " clear_stats vsi [seid]\n"); 1964 dev_info(&pf->pdev->dev, " clear_stats port\n"); 1965 dev_info(&pf->pdev->dev, " pfr\n"); 1966 dev_info(&pf->pdev->dev, " corer\n"); 1967 dev_info(&pf->pdev->dev, " globr\n"); 1968 dev_info(&pf->pdev->dev, " send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n"); 1969 dev_info(&pf->pdev->dev, " send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n"); 1970 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"); 1971 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"); 1972 dev_info(&pf->pdev->dev, " fd-atr off\n"); 1973 dev_info(&pf->pdev->dev, " fd-atr on\n"); 1974 dev_info(&pf->pdev->dev, " fd current cnt"); 1975 dev_info(&pf->pdev->dev, " lldp start\n"); 1976 dev_info(&pf->pdev->dev, " lldp stop\n"); 1977 dev_info(&pf->pdev->dev, " lldp get local\n"); 1978 dev_info(&pf->pdev->dev, " lldp get remote\n"); 1979 dev_info(&pf->pdev->dev, " lldp event on\n"); 1980 dev_info(&pf->pdev->dev, " lldp event off\n"); 1981 dev_info(&pf->pdev->dev, " nvm read [module] [word_offset] [word_count]\n"); 1982 } 1983 1984 command_write_done: 1985 kfree(cmd_buf); 1986 cmd_buf = NULL; 1987 return count; 1988 } 1989 1990 static const struct file_operations i40e_dbg_command_fops = { 1991 .owner = THIS_MODULE, 1992 .open = simple_open, 1993 .read = i40e_dbg_command_read, 1994 .write = i40e_dbg_command_write, 1995 }; 1996 1997 /************************************************************** 1998 * netdev_ops 1999 * The netdev_ops entry in debugfs is for giving the driver commands 2000 * to be executed from the netdev operations. 2001 **************************************************************/ 2002 static char i40e_dbg_netdev_ops_buf[256] = ""; 2003 2004 /** 2005 * i40e_dbg_netdev_ops - read for netdev_ops datum 2006 * @filp: the opened file 2007 * @buffer: where to write the data for the user to read 2008 * @count: the size of the user's buffer 2009 * @ppos: file position offset 2010 **/ 2011 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer, 2012 size_t count, loff_t *ppos) 2013 { 2014 struct i40e_pf *pf = filp->private_data; 2015 int bytes_not_copied; 2016 int buf_size = 256; 2017 char *buf; 2018 int len; 2019 2020 /* don't allow partal reads */ 2021 if (*ppos != 0) 2022 return 0; 2023 if (count < buf_size) 2024 return -ENOSPC; 2025 2026 buf = kzalloc(buf_size, GFP_KERNEL); 2027 if (!buf) 2028 return -ENOSPC; 2029 2030 len = snprintf(buf, buf_size, "%s: %s\n", 2031 pf->vsi[pf->lan_vsi]->netdev->name, 2032 i40e_dbg_netdev_ops_buf); 2033 2034 bytes_not_copied = copy_to_user(buffer, buf, len); 2035 kfree(buf); 2036 2037 if (bytes_not_copied < 0) 2038 return bytes_not_copied; 2039 2040 *ppos = len; 2041 return len; 2042 } 2043 2044 /** 2045 * i40e_dbg_netdev_ops_write - write into netdev_ops datum 2046 * @filp: the opened file 2047 * @buffer: where to find the user's data 2048 * @count: the length of the user's data 2049 * @ppos: file position offset 2050 **/ 2051 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp, 2052 const char __user *buffer, 2053 size_t count, loff_t *ppos) 2054 { 2055 struct i40e_pf *pf = filp->private_data; 2056 int bytes_not_copied; 2057 struct i40e_vsi *vsi; 2058 char *buf_tmp; 2059 int vsi_seid; 2060 int i, cnt; 2061 2062 /* don't allow partial writes */ 2063 if (*ppos != 0) 2064 return 0; 2065 if (count >= sizeof(i40e_dbg_netdev_ops_buf)) 2066 return -ENOSPC; 2067 2068 memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf)); 2069 bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf, 2070 buffer, count); 2071 if (bytes_not_copied < 0) 2072 return bytes_not_copied; 2073 else if (bytes_not_copied > 0) 2074 count -= bytes_not_copied; 2075 i40e_dbg_netdev_ops_buf[count] = '\0'; 2076 2077 buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n'); 2078 if (buf_tmp) { 2079 *buf_tmp = '\0'; 2080 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1; 2081 } 2082 2083 if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) { 2084 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid); 2085 if (cnt != 1) { 2086 dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n"); 2087 goto netdev_ops_write_done; 2088 } 2089 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2090 if (!vsi) { 2091 dev_info(&pf->pdev->dev, 2092 "tx_timeout: VSI %d not found\n", vsi_seid); 2093 } else if (!vsi->netdev) { 2094 dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n", 2095 vsi_seid); 2096 } else if (test_bit(__I40E_DOWN, &vsi->state)) { 2097 dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n", 2098 vsi_seid); 2099 } else if (rtnl_trylock()) { 2100 vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev); 2101 rtnl_unlock(); 2102 dev_info(&pf->pdev->dev, "tx_timeout called\n"); 2103 } else { 2104 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2105 } 2106 } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) { 2107 int mtu; 2108 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i", 2109 &vsi_seid, &mtu); 2110 if (cnt != 2) { 2111 dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n"); 2112 goto netdev_ops_write_done; 2113 } 2114 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2115 if (!vsi) { 2116 dev_info(&pf->pdev->dev, 2117 "change_mtu: VSI %d not found\n", vsi_seid); 2118 } else if (!vsi->netdev) { 2119 dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n", 2120 vsi_seid); 2121 } else if (rtnl_trylock()) { 2122 vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev, 2123 mtu); 2124 rtnl_unlock(); 2125 dev_info(&pf->pdev->dev, "change_mtu called\n"); 2126 } else { 2127 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2128 } 2129 2130 } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) { 2131 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid); 2132 if (cnt != 1) { 2133 dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n"); 2134 goto netdev_ops_write_done; 2135 } 2136 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2137 if (!vsi) { 2138 dev_info(&pf->pdev->dev, 2139 "set_rx_mode: VSI %d not found\n", vsi_seid); 2140 } else if (!vsi->netdev) { 2141 dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n", 2142 vsi_seid); 2143 } else if (rtnl_trylock()) { 2144 vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev); 2145 rtnl_unlock(); 2146 dev_info(&pf->pdev->dev, "set_rx_mode called\n"); 2147 } else { 2148 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2149 } 2150 2151 } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) { 2152 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid); 2153 if (cnt != 1) { 2154 dev_info(&pf->pdev->dev, "napi <vsi_seid>\n"); 2155 goto netdev_ops_write_done; 2156 } 2157 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2158 if (!vsi) { 2159 dev_info(&pf->pdev->dev, "napi: VSI %d not found\n", 2160 vsi_seid); 2161 } else if (!vsi->netdev) { 2162 dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n", 2163 vsi_seid); 2164 } else { 2165 for (i = 0; i < vsi->num_q_vectors; i++) 2166 napi_schedule(&vsi->q_vectors[i]->napi); 2167 dev_info(&pf->pdev->dev, "napi called\n"); 2168 } 2169 } else { 2170 dev_info(&pf->pdev->dev, "unknown command '%s'\n", 2171 i40e_dbg_netdev_ops_buf); 2172 dev_info(&pf->pdev->dev, "available commands\n"); 2173 dev_info(&pf->pdev->dev, " tx_timeout <vsi_seid>\n"); 2174 dev_info(&pf->pdev->dev, " change_mtu <vsi_seid> <mtu>\n"); 2175 dev_info(&pf->pdev->dev, " set_rx_mode <vsi_seid>\n"); 2176 dev_info(&pf->pdev->dev, " napi <vsi_seid>\n"); 2177 } 2178 netdev_ops_write_done: 2179 return count; 2180 } 2181 2182 static const struct file_operations i40e_dbg_netdev_ops_fops = { 2183 .owner = THIS_MODULE, 2184 .open = simple_open, 2185 .read = i40e_dbg_netdev_ops_read, 2186 .write = i40e_dbg_netdev_ops_write, 2187 }; 2188 2189 /** 2190 * i40e_dbg_pf_init - setup the debugfs directory for the PF 2191 * @pf: the PF that is starting up 2192 **/ 2193 void i40e_dbg_pf_init(struct i40e_pf *pf) 2194 { 2195 struct dentry *pfile; 2196 const char *name = pci_name(pf->pdev); 2197 const struct device *dev = &pf->pdev->dev; 2198 2199 pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root); 2200 if (!pf->i40e_dbg_pf) 2201 return; 2202 2203 pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf, 2204 &i40e_dbg_command_fops); 2205 if (!pfile) 2206 goto create_failed; 2207 2208 pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf, 2209 &i40e_dbg_dump_fops); 2210 if (!pfile) 2211 goto create_failed; 2212 2213 pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf, 2214 &i40e_dbg_netdev_ops_fops); 2215 if (!pfile) 2216 goto create_failed; 2217 2218 return; 2219 2220 create_failed: 2221 dev_info(dev, "debugfs dir/file for %s failed\n", name); 2222 debugfs_remove_recursive(pf->i40e_dbg_pf); 2223 return; 2224 } 2225 2226 /** 2227 * i40e_dbg_pf_exit - clear out the PF's debugfs entries 2228 * @pf: the PF that is stopping 2229 **/ 2230 void i40e_dbg_pf_exit(struct i40e_pf *pf) 2231 { 2232 debugfs_remove_recursive(pf->i40e_dbg_pf); 2233 pf->i40e_dbg_pf = NULL; 2234 2235 kfree(i40e_dbg_dump_buf); 2236 i40e_dbg_dump_buf = NULL; 2237 } 2238 2239 /** 2240 * i40e_dbg_init - start up debugfs for the driver 2241 **/ 2242 void i40e_dbg_init(void) 2243 { 2244 i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL); 2245 if (!i40e_dbg_root) 2246 pr_info("init of debugfs failed\n"); 2247 } 2248 2249 /** 2250 * i40e_dbg_exit - clean out the driver's debugfs entries 2251 **/ 2252 void i40e_dbg_exit(void) 2253 { 2254 debugfs_remove_recursive(i40e_dbg_root); 2255 i40e_dbg_root = NULL; 2256 } 2257 2258 #endif /* CONFIG_DEBUG_FS */ 2259