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->hw.func_caps.num_vsis; 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->hw.func_caps.num_vsis; 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 \trx_errors = \t%lld\n", 866 estats->rx_broadcast, estats->rx_discards, estats->rx_errors); 867 dev_info(&pf->pdev->dev, 868 " rx_missed = \t%lld \trx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n", 869 estats->rx_missed, estats->rx_unknown_protocol, 870 estats->tx_bytes); 871 dev_info(&pf->pdev->dev, 872 " tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n", 873 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast); 874 dev_info(&pf->pdev->dev, 875 " tx_discards = \t%lld \ttx_errors = \t\t%lld\n", 876 estats->tx_discards, estats->tx_errors); 877 } 878 879 /** 880 * i40e_dbg_dump_stats - handles dump stats write into command datum 881 * @pf: the i40e_pf created in command write 882 * @stats: the stats structure to be dumped 883 **/ 884 static void i40e_dbg_dump_stats(struct i40e_pf *pf, 885 struct i40e_hw_port_stats *stats) 886 { 887 int i; 888 889 dev_info(&pf->pdev->dev, " stats:\n"); 890 dev_info(&pf->pdev->dev, 891 " crc_errors = \t\t%lld \tillegal_bytes = \t%lld \terror_bytes = \t\t%lld\n", 892 stats->crc_errors, stats->illegal_bytes, stats->error_bytes); 893 dev_info(&pf->pdev->dev, 894 " mac_local_faults = \t%lld \tmac_remote_faults = \t%lld \trx_length_errors = \t%lld\n", 895 stats->mac_local_faults, stats->mac_remote_faults, 896 stats->rx_length_errors); 897 dev_info(&pf->pdev->dev, 898 " link_xon_rx = \t\t%lld \tlink_xoff_rx = \t\t%lld \tlink_xon_tx = \t\t%lld\n", 899 stats->link_xon_rx, stats->link_xoff_rx, stats->link_xon_tx); 900 dev_info(&pf->pdev->dev, 901 " link_xoff_tx = \t\t%lld \trx_size_64 = \t\t%lld \trx_size_127 = \t\t%lld\n", 902 stats->link_xoff_tx, stats->rx_size_64, stats->rx_size_127); 903 dev_info(&pf->pdev->dev, 904 " rx_size_255 = \t\t%lld \trx_size_511 = \t\t%lld \trx_size_1023 = \t\t%lld\n", 905 stats->rx_size_255, stats->rx_size_511, stats->rx_size_1023); 906 dev_info(&pf->pdev->dev, 907 " rx_size_big = \t\t%lld \trx_undersize = \t\t%lld \trx_jabber = \t\t%lld\n", 908 stats->rx_size_big, stats->rx_undersize, stats->rx_jabber); 909 dev_info(&pf->pdev->dev, 910 " rx_fragments = \t\t%lld \trx_oversize = \t\t%lld \ttx_size_64 = \t\t%lld\n", 911 stats->rx_fragments, stats->rx_oversize, stats->tx_size_64); 912 dev_info(&pf->pdev->dev, 913 " tx_size_127 = \t\t%lld \ttx_size_255 = \t\t%lld \ttx_size_511 = \t\t%lld\n", 914 stats->tx_size_127, stats->tx_size_255, stats->tx_size_511); 915 dev_info(&pf->pdev->dev, 916 " tx_size_1023 = \t\t%lld \ttx_size_big = \t\t%lld \tmac_short_packet_dropped = \t%lld\n", 917 stats->tx_size_1023, stats->tx_size_big, 918 stats->mac_short_packet_dropped); 919 for (i = 0; i < 8; i += 4) { 920 dev_info(&pf->pdev->dev, 921 " priority_xon_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 922 i, stats->priority_xon_rx[i], 923 i+1, stats->priority_xon_rx[i+1], 924 i+2, stats->priority_xon_rx[i+2], 925 i+3, stats->priority_xon_rx[i+3]); 926 } 927 for (i = 0; i < 8; i += 4) { 928 dev_info(&pf->pdev->dev, 929 " priority_xoff_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 930 i, stats->priority_xoff_rx[i], 931 i+1, stats->priority_xoff_rx[i+1], 932 i+2, stats->priority_xoff_rx[i+2], 933 i+3, stats->priority_xoff_rx[i+3]); 934 } 935 for (i = 0; i < 8; i += 4) { 936 dev_info(&pf->pdev->dev, 937 " priority_xon_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 938 i, stats->priority_xon_tx[i], 939 i+1, stats->priority_xon_tx[i+1], 940 i+2, stats->priority_xon_tx[i+2], 941 i+3, stats->priority_xon_rx[i+3]); 942 } 943 for (i = 0; i < 8; i += 4) { 944 dev_info(&pf->pdev->dev, 945 " priority_xoff_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 946 i, stats->priority_xoff_tx[i], 947 i+1, stats->priority_xoff_tx[i+1], 948 i+2, stats->priority_xoff_tx[i+2], 949 i+3, stats->priority_xoff_tx[i+3]); 950 } 951 for (i = 0; i < 8; i += 4) { 952 dev_info(&pf->pdev->dev, 953 " priority_xon_2_xoff[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n", 954 i, stats->priority_xon_2_xoff[i], 955 i+1, stats->priority_xon_2_xoff[i+1], 956 i+2, stats->priority_xon_2_xoff[i+2], 957 i+3, stats->priority_xon_2_xoff[i+3]); 958 } 959 960 i40e_dbg_dump_eth_stats(pf, &stats->eth); 961 } 962 963 /** 964 * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb 965 * @pf: the i40e_pf created in command write 966 * @seid: the seid the user put in 967 **/ 968 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid) 969 { 970 struct i40e_veb *veb; 971 972 if ((seid < I40E_BASE_VEB_SEID) || 973 (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) { 974 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid); 975 return; 976 } 977 978 veb = i40e_dbg_find_veb(pf, seid); 979 if (!veb) { 980 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid); 981 return; 982 } 983 dev_info(&pf->pdev->dev, 984 "veb idx=%d,%d stats_ic=%d seid=%d uplink=%d\n", 985 veb->idx, veb->veb_idx, veb->stats_idx, veb->seid, 986 veb->uplink_seid); 987 i40e_dbg_dump_eth_stats(pf, &veb->stats); 988 } 989 990 /** 991 * i40e_dbg_dump_veb_all - dumps all known veb's stats 992 * @pf: the i40e_pf created in command write 993 **/ 994 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf) 995 { 996 struct i40e_veb *veb; 997 int i; 998 999 for (i = 0; i < I40E_MAX_VEB; i++) { 1000 veb = pf->veb[i]; 1001 if (veb) 1002 i40e_dbg_dump_veb_seid(pf, veb->seid); 1003 } 1004 } 1005 1006 /** 1007 * i40e_dbg_cmd_fd_ctrl - Enable/disable FD sideband/ATR 1008 * @pf: the pf that would be altered 1009 * @flag: flag that needs enabling or disabling 1010 * @enable: Enable/disable FD SD/ATR 1011 **/ 1012 static void i40e_dbg_cmd_fd_ctrl(struct i40e_pf *pf, u64 flag, bool enable) 1013 { 1014 if (enable) { 1015 pf->flags |= flag; 1016 } else { 1017 pf->flags &= ~flag; 1018 pf->auto_disable_flags |= flag; 1019 } 1020 dev_info(&pf->pdev->dev, "requesting a pf reset\n"); 1021 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED)); 1022 } 1023 1024 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4) 1025 /** 1026 * i40e_dbg_command_write - write into command datum 1027 * @filp: the opened file 1028 * @buffer: where to find the user's data 1029 * @count: the length of the user's data 1030 * @ppos: file position offset 1031 **/ 1032 static ssize_t i40e_dbg_command_write(struct file *filp, 1033 const char __user *buffer, 1034 size_t count, loff_t *ppos) 1035 { 1036 struct i40e_pf *pf = filp->private_data; 1037 char *cmd_buf, *cmd_buf_tmp; 1038 int bytes_not_copied; 1039 struct i40e_vsi *vsi; 1040 int vsi_seid; 1041 int veb_seid; 1042 int cnt; 1043 1044 /* don't allow partial writes */ 1045 if (*ppos != 0) 1046 return 0; 1047 1048 cmd_buf = kzalloc(count + 1, GFP_KERNEL); 1049 if (!cmd_buf) 1050 return count; 1051 bytes_not_copied = copy_from_user(cmd_buf, buffer, count); 1052 if (bytes_not_copied < 0) 1053 return bytes_not_copied; 1054 if (bytes_not_copied > 0) 1055 count -= bytes_not_copied; 1056 cmd_buf[count] = '\0'; 1057 1058 cmd_buf_tmp = strchr(cmd_buf, '\n'); 1059 if (cmd_buf_tmp) { 1060 *cmd_buf_tmp = '\0'; 1061 count = cmd_buf_tmp - cmd_buf + 1; 1062 } 1063 1064 if (strncmp(cmd_buf, "add vsi", 7) == 0) { 1065 vsi_seid = -1; 1066 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid); 1067 if (cnt == 0) { 1068 /* default to PF VSI */ 1069 vsi_seid = pf->vsi[pf->lan_vsi]->seid; 1070 } else if (vsi_seid < 0) { 1071 dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n", 1072 vsi_seid); 1073 goto command_write_done; 1074 } 1075 1076 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0); 1077 if (vsi) 1078 dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n", 1079 vsi->seid, vsi->uplink_seid); 1080 else 1081 dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf); 1082 1083 } else if (strncmp(cmd_buf, "del vsi", 7) == 0) { 1084 sscanf(&cmd_buf[7], "%i", &vsi_seid); 1085 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1086 if (!vsi) { 1087 dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n", 1088 vsi_seid); 1089 goto command_write_done; 1090 } 1091 1092 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid); 1093 i40e_vsi_release(vsi); 1094 1095 } else if (strncmp(cmd_buf, "add relay", 9) == 0) { 1096 struct i40e_veb *veb; 1097 int uplink_seid, i; 1098 1099 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid); 1100 if (cnt != 2) { 1101 dev_info(&pf->pdev->dev, 1102 "add relay: bad command string, cnt=%d\n", 1103 cnt); 1104 goto command_write_done; 1105 } else if (uplink_seid < 0) { 1106 dev_info(&pf->pdev->dev, 1107 "add relay %d: bad uplink seid\n", 1108 uplink_seid); 1109 goto command_write_done; 1110 } 1111 1112 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1113 if (!vsi) { 1114 dev_info(&pf->pdev->dev, 1115 "add relay: VSI %d not found\n", vsi_seid); 1116 goto command_write_done; 1117 } 1118 1119 for (i = 0; i < I40E_MAX_VEB; i++) 1120 if (pf->veb[i] && pf->veb[i]->seid == uplink_seid) 1121 break; 1122 if (i >= I40E_MAX_VEB && uplink_seid != 0 && 1123 uplink_seid != pf->mac_seid) { 1124 dev_info(&pf->pdev->dev, 1125 "add relay: relay uplink %d not found\n", 1126 uplink_seid); 1127 goto command_write_done; 1128 } 1129 1130 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid, 1131 vsi->tc_config.enabled_tc); 1132 if (veb) 1133 dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid); 1134 else 1135 dev_info(&pf->pdev->dev, "add relay failed\n"); 1136 1137 } else if (strncmp(cmd_buf, "del relay", 9) == 0) { 1138 int i; 1139 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid); 1140 if (cnt != 1) { 1141 dev_info(&pf->pdev->dev, 1142 "del relay: bad command string, cnt=%d\n", 1143 cnt); 1144 goto command_write_done; 1145 } else if (veb_seid < 0) { 1146 dev_info(&pf->pdev->dev, 1147 "del relay %d: bad relay seid\n", veb_seid); 1148 goto command_write_done; 1149 } 1150 1151 /* find the veb */ 1152 for (i = 0; i < I40E_MAX_VEB; i++) 1153 if (pf->veb[i] && pf->veb[i]->seid == veb_seid) 1154 break; 1155 if (i >= I40E_MAX_VEB) { 1156 dev_info(&pf->pdev->dev, 1157 "del relay: relay %d not found\n", veb_seid); 1158 goto command_write_done; 1159 } 1160 1161 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid); 1162 i40e_veb_release(pf->veb[i]); 1163 1164 } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) { 1165 struct i40e_mac_filter *f; 1166 int vlan = 0; 1167 u8 ma[6]; 1168 int ret; 1169 1170 cnt = sscanf(&cmd_buf[11], 1171 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i", 1172 &vsi_seid, 1173 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5], 1174 &vlan); 1175 if (cnt == 7) { 1176 vlan = 0; 1177 } else if (cnt != 8) { 1178 dev_info(&pf->pdev->dev, 1179 "add macaddr: bad command string, cnt=%d\n", 1180 cnt); 1181 goto command_write_done; 1182 } 1183 1184 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1185 if (!vsi) { 1186 dev_info(&pf->pdev->dev, 1187 "add macaddr: VSI %d not found\n", vsi_seid); 1188 goto command_write_done; 1189 } 1190 1191 f = i40e_add_filter(vsi, ma, vlan, false, false); 1192 ret = i40e_sync_vsi_filters(vsi); 1193 if (f && !ret) 1194 dev_info(&pf->pdev->dev, 1195 "add macaddr: %pM vlan=%d added to VSI %d\n", 1196 ma, vlan, vsi_seid); 1197 else 1198 dev_info(&pf->pdev->dev, 1199 "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n", 1200 ma, vlan, vsi_seid, f, ret); 1201 1202 } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) { 1203 int vlan = 0; 1204 u8 ma[6]; 1205 int ret; 1206 1207 cnt = sscanf(&cmd_buf[11], 1208 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i", 1209 &vsi_seid, 1210 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5], 1211 &vlan); 1212 if (cnt == 7) { 1213 vlan = 0; 1214 } else if (cnt != 8) { 1215 dev_info(&pf->pdev->dev, 1216 "del macaddr: bad command string, cnt=%d\n", 1217 cnt); 1218 goto command_write_done; 1219 } 1220 1221 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1222 if (!vsi) { 1223 dev_info(&pf->pdev->dev, 1224 "del macaddr: VSI %d not found\n", vsi_seid); 1225 goto command_write_done; 1226 } 1227 1228 i40e_del_filter(vsi, ma, vlan, false, false); 1229 ret = i40e_sync_vsi_filters(vsi); 1230 if (!ret) 1231 dev_info(&pf->pdev->dev, 1232 "del macaddr: %pM vlan=%d removed from VSI %d\n", 1233 ma, vlan, vsi_seid); 1234 else 1235 dev_info(&pf->pdev->dev, 1236 "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n", 1237 ma, vlan, vsi_seid, ret); 1238 1239 } else if (strncmp(cmd_buf, "add pvid", 8) == 0) { 1240 i40e_status ret; 1241 u16 vid; 1242 int v; 1243 1244 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v); 1245 if (cnt != 2) { 1246 dev_info(&pf->pdev->dev, 1247 "add pvid: bad command string, cnt=%d\n", cnt); 1248 goto command_write_done; 1249 } 1250 1251 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1252 if (!vsi) { 1253 dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n", 1254 vsi_seid); 1255 goto command_write_done; 1256 } 1257 1258 vid = (unsigned)v; 1259 ret = i40e_vsi_add_pvid(vsi, vid); 1260 if (!ret) 1261 dev_info(&pf->pdev->dev, 1262 "add pvid: %d added to VSI %d\n", 1263 vid, vsi_seid); 1264 else 1265 dev_info(&pf->pdev->dev, 1266 "add pvid: %d to VSI %d failed, ret=%d\n", 1267 vid, vsi_seid, ret); 1268 1269 } else if (strncmp(cmd_buf, "del pvid", 8) == 0) { 1270 1271 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1272 if (cnt != 1) { 1273 dev_info(&pf->pdev->dev, 1274 "del pvid: bad command string, cnt=%d\n", 1275 cnt); 1276 goto command_write_done; 1277 } 1278 1279 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1280 if (!vsi) { 1281 dev_info(&pf->pdev->dev, 1282 "del pvid: VSI %d not found\n", vsi_seid); 1283 goto command_write_done; 1284 } 1285 1286 i40e_vsi_remove_pvid(vsi); 1287 dev_info(&pf->pdev->dev, 1288 "del pvid: removed from VSI %d\n", vsi_seid); 1289 1290 } else if (strncmp(cmd_buf, "dump", 4) == 0) { 1291 if (strncmp(&cmd_buf[5], "switch", 6) == 0) { 1292 i40e_fetch_switch_configuration(pf, true); 1293 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) { 1294 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1295 if (cnt > 0) 1296 i40e_dbg_dump_vsi_seid(pf, vsi_seid); 1297 else 1298 i40e_dbg_dump_vsi_no_seid(pf); 1299 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) { 1300 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1301 if (cnt > 0) 1302 i40e_dbg_dump_veb_seid(pf, vsi_seid); 1303 else 1304 i40e_dbg_dump_veb_all(pf); 1305 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) { 1306 int ring_id, desc_n; 1307 if (strncmp(&cmd_buf[10], "rx", 2) == 0) { 1308 cnt = sscanf(&cmd_buf[12], "%i %i %i", 1309 &vsi_seid, &ring_id, &desc_n); 1310 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id, 1311 desc_n, pf, true); 1312 } else if (strncmp(&cmd_buf[10], "tx", 2) 1313 == 0) { 1314 cnt = sscanf(&cmd_buf[12], "%i %i %i", 1315 &vsi_seid, &ring_id, &desc_n); 1316 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id, 1317 desc_n, pf, false); 1318 } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) { 1319 i40e_dbg_dump_aq_desc(pf); 1320 } else { 1321 dev_info(&pf->pdev->dev, 1322 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n"); 1323 dev_info(&pf->pdev->dev, 1324 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n"); 1325 dev_info(&pf->pdev->dev, "dump desc aq\n"); 1326 } 1327 } else if (strncmp(&cmd_buf[5], "stats", 5) == 0) { 1328 dev_info(&pf->pdev->dev, "pf stats:\n"); 1329 i40e_dbg_dump_stats(pf, &pf->stats); 1330 dev_info(&pf->pdev->dev, "pf stats_offsets:\n"); 1331 i40e_dbg_dump_stats(pf, &pf->stats_offsets); 1332 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) { 1333 dev_info(&pf->pdev->dev, 1334 "core reset count: %d\n", pf->corer_count); 1335 dev_info(&pf->pdev->dev, 1336 "global reset count: %d\n", pf->globr_count); 1337 dev_info(&pf->pdev->dev, 1338 "emp reset count: %d\n", pf->empr_count); 1339 dev_info(&pf->pdev->dev, 1340 "pf reset count: %d\n", pf->pfr_count); 1341 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) { 1342 struct i40e_aqc_query_port_ets_config_resp *bw_data; 1343 struct i40e_dcbx_config *cfg = 1344 &pf->hw.local_dcbx_config; 1345 struct i40e_dcbx_config *r_cfg = 1346 &pf->hw.remote_dcbx_config; 1347 int i, ret; 1348 1349 bw_data = kzalloc(sizeof( 1350 struct i40e_aqc_query_port_ets_config_resp), 1351 GFP_KERNEL); 1352 if (!bw_data) { 1353 ret = -ENOMEM; 1354 goto command_write_done; 1355 } 1356 1357 ret = i40e_aq_query_port_ets_config(&pf->hw, 1358 pf->mac_seid, 1359 bw_data, NULL); 1360 if (ret) { 1361 dev_info(&pf->pdev->dev, 1362 "Query Port ETS Config AQ command failed =0x%x\n", 1363 pf->hw.aq.asq_last_status); 1364 kfree(bw_data); 1365 bw_data = NULL; 1366 goto command_write_done; 1367 } 1368 dev_info(&pf->pdev->dev, 1369 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n", 1370 bw_data->tc_valid_bits, 1371 bw_data->tc_strict_priority_bits, 1372 le16_to_cpu(bw_data->tc_bw_max[0]), 1373 le16_to_cpu(bw_data->tc_bw_max[1])); 1374 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1375 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n", 1376 bw_data->tc_bw_share_credits[i], 1377 le16_to_cpu(bw_data->tc_bw_limits[i])); 1378 } 1379 1380 kfree(bw_data); 1381 bw_data = NULL; 1382 1383 dev_info(&pf->pdev->dev, 1384 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n", 1385 cfg->etscfg.willing, cfg->etscfg.cbs, 1386 cfg->etscfg.maxtcs); 1387 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1388 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1389 i, cfg->etscfg.prioritytable[i], 1390 cfg->etscfg.tcbwtable[i], 1391 cfg->etscfg.tsatable[i]); 1392 } 1393 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1394 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1395 i, cfg->etsrec.prioritytable[i], 1396 cfg->etsrec.tcbwtable[i], 1397 cfg->etsrec.tsatable[i]); 1398 } 1399 dev_info(&pf->pdev->dev, 1400 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n", 1401 cfg->pfc.willing, cfg->pfc.mbc, 1402 cfg->pfc.pfccap, cfg->pfc.pfcenable); 1403 dev_info(&pf->pdev->dev, 1404 "port app_table: num_apps=%d\n", cfg->numapps); 1405 for (i = 0; i < cfg->numapps; i++) { 1406 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n", 1407 i, cfg->app[i].priority, 1408 cfg->app[i].selector, 1409 cfg->app[i].protocolid); 1410 } 1411 /* Peer TLV DCBX data */ 1412 dev_info(&pf->pdev->dev, 1413 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n", 1414 r_cfg->etscfg.willing, 1415 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs); 1416 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1417 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1418 i, r_cfg->etscfg.prioritytable[i], 1419 r_cfg->etscfg.tcbwtable[i], 1420 r_cfg->etscfg.tsatable[i]); 1421 } 1422 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1423 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1424 i, r_cfg->etsrec.prioritytable[i], 1425 r_cfg->etsrec.tcbwtable[i], 1426 r_cfg->etsrec.tsatable[i]); 1427 } 1428 dev_info(&pf->pdev->dev, 1429 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n", 1430 r_cfg->pfc.willing, 1431 r_cfg->pfc.mbc, 1432 r_cfg->pfc.pfccap, 1433 r_cfg->pfc.pfcenable); 1434 dev_info(&pf->pdev->dev, 1435 "remote port app_table: num_apps=%d\n", 1436 r_cfg->numapps); 1437 for (i = 0; i < r_cfg->numapps; i++) { 1438 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n", 1439 i, r_cfg->app[i].priority, 1440 r_cfg->app[i].selector, 1441 r_cfg->app[i].protocolid); 1442 } 1443 } else { 1444 dev_info(&pf->pdev->dev, 1445 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n"); 1446 dev_info(&pf->pdev->dev, "dump switch, dump vsi [seid] or\n"); 1447 dev_info(&pf->pdev->dev, "dump stats\n"); 1448 dev_info(&pf->pdev->dev, "dump reset stats\n"); 1449 dev_info(&pf->pdev->dev, "dump port\n"); 1450 dev_info(&pf->pdev->dev, 1451 "dump debug fwdata <cluster_id> <table_id> <index>\n"); 1452 } 1453 1454 } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) { 1455 u32 level; 1456 cnt = sscanf(&cmd_buf[10], "%i", &level); 1457 if (cnt) { 1458 if (I40E_DEBUG_USER & level) { 1459 pf->hw.debug_mask = level; 1460 dev_info(&pf->pdev->dev, 1461 "set hw.debug_mask = 0x%08x\n", 1462 pf->hw.debug_mask); 1463 } 1464 pf->msg_enable = level; 1465 dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n", 1466 pf->msg_enable); 1467 } else { 1468 dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n", 1469 pf->msg_enable); 1470 } 1471 } else if (strncmp(cmd_buf, "pfr", 3) == 0) { 1472 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n"); 1473 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED)); 1474 1475 } else if (strncmp(cmd_buf, "corer", 5) == 0) { 1476 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n"); 1477 i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED)); 1478 1479 } else if (strncmp(cmd_buf, "globr", 5) == 0) { 1480 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n"); 1481 i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED)); 1482 1483 } else if (strncmp(cmd_buf, "empr", 4) == 0) { 1484 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n"); 1485 i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED)); 1486 1487 } else if (strncmp(cmd_buf, "read", 4) == 0) { 1488 u32 address; 1489 u32 value; 1490 cnt = sscanf(&cmd_buf[4], "%i", &address); 1491 if (cnt != 1) { 1492 dev_info(&pf->pdev->dev, "read <reg>\n"); 1493 goto command_write_done; 1494 } 1495 1496 /* check the range on address */ 1497 if (address >= I40E_MAX_REGISTER) { 1498 dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n", 1499 address); 1500 goto command_write_done; 1501 } 1502 1503 value = rd32(&pf->hw, address); 1504 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n", 1505 address, value); 1506 1507 } else if (strncmp(cmd_buf, "write", 5) == 0) { 1508 u32 address, value; 1509 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value); 1510 if (cnt != 2) { 1511 dev_info(&pf->pdev->dev, "write <reg> <value>\n"); 1512 goto command_write_done; 1513 } 1514 1515 /* check the range on address */ 1516 if (address >= I40E_MAX_REGISTER) { 1517 dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n", 1518 address); 1519 goto command_write_done; 1520 } 1521 wr32(&pf->hw, address, value); 1522 value = rd32(&pf->hw, address); 1523 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n", 1524 address, value); 1525 } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) { 1526 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) { 1527 cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid); 1528 if (cnt == 0) { 1529 int i; 1530 for (i = 0; i < pf->hw.func_caps.num_vsis; i++) 1531 i40e_vsi_reset_stats(pf->vsi[i]); 1532 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n"); 1533 } else if (cnt == 1) { 1534 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1535 if (!vsi) { 1536 dev_info(&pf->pdev->dev, 1537 "clear_stats vsi: bad vsi %d\n", 1538 vsi_seid); 1539 goto command_write_done; 1540 } 1541 i40e_vsi_reset_stats(vsi); 1542 dev_info(&pf->pdev->dev, 1543 "vsi clear stats called for vsi %d\n", 1544 vsi_seid); 1545 } else { 1546 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n"); 1547 } 1548 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) { 1549 i40e_pf_reset_stats(pf); 1550 dev_info(&pf->pdev->dev, "pf clear stats called\n"); 1551 } else { 1552 dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n"); 1553 } 1554 } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) { 1555 struct i40e_aq_desc *desc; 1556 i40e_status ret; 1557 1558 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL); 1559 if (!desc) 1560 goto command_write_done; 1561 cnt = sscanf(&cmd_buf[11], 1562 "%hx %hx %hx %hx %x %x %x %x %x %x", 1563 &desc->flags, 1564 &desc->opcode, &desc->datalen, &desc->retval, 1565 &desc->cookie_high, &desc->cookie_low, 1566 &desc->params.internal.param0, 1567 &desc->params.internal.param1, 1568 &desc->params.internal.param2, 1569 &desc->params.internal.param3); 1570 if (cnt != 10) { 1571 dev_info(&pf->pdev->dev, 1572 "send aq_cmd: bad command string, cnt=%d\n", 1573 cnt); 1574 kfree(desc); 1575 desc = NULL; 1576 goto command_write_done; 1577 } 1578 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL); 1579 if (!ret) { 1580 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n"); 1581 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) { 1582 dev_info(&pf->pdev->dev, 1583 "AQ command send failed Opcode %x AQ Error: %d\n", 1584 desc->opcode, pf->hw.aq.asq_last_status); 1585 } else { 1586 dev_info(&pf->pdev->dev, 1587 "AQ command send failed Opcode %x Status: %d\n", 1588 desc->opcode, ret); 1589 } 1590 dev_info(&pf->pdev->dev, 1591 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", 1592 desc->flags, desc->opcode, desc->datalen, desc->retval, 1593 desc->cookie_high, desc->cookie_low, 1594 desc->params.internal.param0, 1595 desc->params.internal.param1, 1596 desc->params.internal.param2, 1597 desc->params.internal.param3); 1598 kfree(desc); 1599 desc = NULL; 1600 } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) { 1601 struct i40e_aq_desc *desc; 1602 i40e_status ret; 1603 u16 buffer_len; 1604 u8 *buff; 1605 1606 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL); 1607 if (!desc) 1608 goto command_write_done; 1609 cnt = sscanf(&cmd_buf[20], 1610 "%hx %hx %hx %hx %x %x %x %x %x %x %hd", 1611 &desc->flags, 1612 &desc->opcode, &desc->datalen, &desc->retval, 1613 &desc->cookie_high, &desc->cookie_low, 1614 &desc->params.internal.param0, 1615 &desc->params.internal.param1, 1616 &desc->params.internal.param2, 1617 &desc->params.internal.param3, 1618 &buffer_len); 1619 if (cnt != 11) { 1620 dev_info(&pf->pdev->dev, 1621 "send indirect aq_cmd: bad command string, cnt=%d\n", 1622 cnt); 1623 kfree(desc); 1624 desc = NULL; 1625 goto command_write_done; 1626 } 1627 /* Just stub a buffer big enough in case user messed up */ 1628 if (buffer_len == 0) 1629 buffer_len = 1280; 1630 1631 buff = kzalloc(buffer_len, GFP_KERNEL); 1632 if (!buff) { 1633 kfree(desc); 1634 desc = NULL; 1635 goto command_write_done; 1636 } 1637 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF); 1638 ret = i40e_asq_send_command(&pf->hw, desc, buff, 1639 buffer_len, NULL); 1640 if (!ret) { 1641 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n"); 1642 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) { 1643 dev_info(&pf->pdev->dev, 1644 "AQ command send failed Opcode %x AQ Error: %d\n", 1645 desc->opcode, pf->hw.aq.asq_last_status); 1646 } else { 1647 dev_info(&pf->pdev->dev, 1648 "AQ command send failed Opcode %x Status: %d\n", 1649 desc->opcode, ret); 1650 } 1651 dev_info(&pf->pdev->dev, 1652 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", 1653 desc->flags, desc->opcode, desc->datalen, desc->retval, 1654 desc->cookie_high, desc->cookie_low, 1655 desc->params.internal.param0, 1656 desc->params.internal.param1, 1657 desc->params.internal.param2, 1658 desc->params.internal.param3); 1659 print_hex_dump(KERN_INFO, "AQ buffer WB: ", 1660 DUMP_PREFIX_OFFSET, 16, 1, 1661 buff, buffer_len, true); 1662 kfree(buff); 1663 buff = NULL; 1664 kfree(desc); 1665 desc = NULL; 1666 } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) || 1667 (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) { 1668 struct i40e_fdir_filter fd_data; 1669 u16 packet_len, i, j = 0; 1670 char *asc_packet; 1671 u8 *raw_packet; 1672 bool add = false; 1673 int ret; 1674 1675 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 1676 goto command_write_done; 1677 1678 if (strncmp(cmd_buf, "add", 3) == 0) 1679 add = true; 1680 1681 if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)) 1682 goto command_write_done; 1683 1684 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE, 1685 GFP_KERNEL); 1686 if (!asc_packet) 1687 goto command_write_done; 1688 1689 raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE, 1690 GFP_KERNEL); 1691 1692 if (!raw_packet) { 1693 kfree(asc_packet); 1694 asc_packet = NULL; 1695 goto command_write_done; 1696 } 1697 1698 cnt = sscanf(&cmd_buf[13], 1699 "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s", 1700 &fd_data.q_index, 1701 &fd_data.flex_off, &fd_data.pctype, 1702 &fd_data.dest_vsi, &fd_data.dest_ctl, 1703 &fd_data.fd_status, &fd_data.cnt_index, 1704 &fd_data.fd_id, &packet_len, asc_packet); 1705 if (cnt != 10) { 1706 dev_info(&pf->pdev->dev, 1707 "program fd_filter: bad command string, cnt=%d\n", 1708 cnt); 1709 kfree(asc_packet); 1710 asc_packet = NULL; 1711 kfree(raw_packet); 1712 goto command_write_done; 1713 } 1714 1715 /* fix packet length if user entered 0 */ 1716 if (packet_len == 0) 1717 packet_len = I40E_FDIR_MAX_RAW_PACKET_SIZE; 1718 1719 /* make sure to check the max as well */ 1720 packet_len = min_t(u16, 1721 packet_len, I40E_FDIR_MAX_RAW_PACKET_SIZE); 1722 1723 for (i = 0; i < packet_len; i++) { 1724 sscanf(&asc_packet[j], "%2hhx ", 1725 &raw_packet[i]); 1726 j += 3; 1727 } 1728 dev_info(&pf->pdev->dev, "FD raw packet dump\n"); 1729 print_hex_dump(KERN_INFO, "FD raw packet: ", 1730 DUMP_PREFIX_OFFSET, 16, 1, 1731 raw_packet, packet_len, true); 1732 ret = i40e_program_fdir_filter(&fd_data, raw_packet, pf, add); 1733 if (!ret) { 1734 dev_info(&pf->pdev->dev, "Filter command send Status : Success\n"); 1735 } else { 1736 dev_info(&pf->pdev->dev, 1737 "Filter command send failed %d\n", ret); 1738 } 1739 kfree(raw_packet); 1740 raw_packet = NULL; 1741 kfree(asc_packet); 1742 asc_packet = NULL; 1743 } else if (strncmp(cmd_buf, "fd-atr off", 10) == 0) { 1744 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, false); 1745 } else if (strncmp(cmd_buf, "fd-atr on", 9) == 0) { 1746 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, true); 1747 } else if (strncmp(cmd_buf, "fd-sb off", 9) == 0) { 1748 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_SB_ENABLED, false); 1749 } else if (strncmp(cmd_buf, "fd-sb on", 8) == 0) { 1750 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_SB_ENABLED, true); 1751 } else if (strncmp(cmd_buf, "lldp", 4) == 0) { 1752 if (strncmp(&cmd_buf[5], "stop", 4) == 0) { 1753 int ret; 1754 ret = i40e_aq_stop_lldp(&pf->hw, false, NULL); 1755 if (ret) { 1756 dev_info(&pf->pdev->dev, 1757 "Stop LLDP AQ command failed =0x%x\n", 1758 pf->hw.aq.asq_last_status); 1759 goto command_write_done; 1760 } 1761 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw, 1762 pf->hw.mac.addr, 1763 I40E_ETH_P_LLDP, 0, 1764 pf->vsi[pf->lan_vsi]->seid, 1765 0, true, NULL, NULL); 1766 if (ret) { 1767 dev_info(&pf->pdev->dev, 1768 "%s: Add Control Packet Filter AQ command failed =0x%x\n", 1769 __func__, pf->hw.aq.asq_last_status); 1770 goto command_write_done; 1771 } 1772 #ifdef CONFIG_I40E_DCB 1773 pf->dcbx_cap = DCB_CAP_DCBX_HOST | 1774 DCB_CAP_DCBX_VER_IEEE; 1775 #endif /* CONFIG_I40E_DCB */ 1776 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) { 1777 int ret; 1778 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw, 1779 pf->hw.mac.addr, 1780 I40E_ETH_P_LLDP, 0, 1781 pf->vsi[pf->lan_vsi]->seid, 1782 0, false, NULL, NULL); 1783 if (ret) { 1784 dev_info(&pf->pdev->dev, 1785 "%s: Remove Control Packet Filter AQ command failed =0x%x\n", 1786 __func__, pf->hw.aq.asq_last_status); 1787 /* Continue and start FW LLDP anyways */ 1788 } 1789 1790 ret = i40e_aq_start_lldp(&pf->hw, NULL); 1791 if (ret) { 1792 dev_info(&pf->pdev->dev, 1793 "Start LLDP AQ command failed =0x%x\n", 1794 pf->hw.aq.asq_last_status); 1795 goto command_write_done; 1796 } 1797 #ifdef CONFIG_I40E_DCB 1798 pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED | 1799 DCB_CAP_DCBX_VER_IEEE; 1800 #endif /* CONFIG_I40E_DCB */ 1801 } else if (strncmp(&cmd_buf[5], 1802 "get local", 9) == 0) { 1803 u16 llen, rlen; 1804 int ret; 1805 u8 *buff; 1806 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL); 1807 if (!buff) 1808 goto command_write_done; 1809 1810 ret = i40e_aq_get_lldp_mib(&pf->hw, 0, 1811 I40E_AQ_LLDP_MIB_LOCAL, 1812 buff, I40E_LLDPDU_SIZE, 1813 &llen, &rlen, NULL); 1814 if (ret) { 1815 dev_info(&pf->pdev->dev, 1816 "Get LLDP MIB (local) AQ command failed =0x%x\n", 1817 pf->hw.aq.asq_last_status); 1818 kfree(buff); 1819 buff = NULL; 1820 goto command_write_done; 1821 } 1822 dev_info(&pf->pdev->dev, "LLDP MIB (local)\n"); 1823 print_hex_dump(KERN_INFO, "LLDP MIB (local): ", 1824 DUMP_PREFIX_OFFSET, 16, 1, 1825 buff, I40E_LLDPDU_SIZE, true); 1826 kfree(buff); 1827 buff = NULL; 1828 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) { 1829 u16 llen, rlen; 1830 int ret; 1831 u8 *buff; 1832 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL); 1833 if (!buff) 1834 goto command_write_done; 1835 1836 ret = i40e_aq_get_lldp_mib(&pf->hw, 1837 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE, 1838 I40E_AQ_LLDP_MIB_LOCAL, 1839 buff, I40E_LLDPDU_SIZE, 1840 &llen, &rlen, NULL); 1841 if (ret) { 1842 dev_info(&pf->pdev->dev, 1843 "Get LLDP MIB (remote) AQ command failed =0x%x\n", 1844 pf->hw.aq.asq_last_status); 1845 kfree(buff); 1846 buff = NULL; 1847 goto command_write_done; 1848 } 1849 dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n"); 1850 print_hex_dump(KERN_INFO, "LLDP MIB (remote): ", 1851 DUMP_PREFIX_OFFSET, 16, 1, 1852 buff, I40E_LLDPDU_SIZE, true); 1853 kfree(buff); 1854 buff = NULL; 1855 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) { 1856 int ret; 1857 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw, 1858 true, NULL); 1859 if (ret) { 1860 dev_info(&pf->pdev->dev, 1861 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n", 1862 pf->hw.aq.asq_last_status); 1863 goto command_write_done; 1864 } 1865 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) { 1866 int ret; 1867 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw, 1868 false, NULL); 1869 if (ret) { 1870 dev_info(&pf->pdev->dev, 1871 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n", 1872 pf->hw.aq.asq_last_status); 1873 goto command_write_done; 1874 } 1875 } 1876 } else if (strncmp(cmd_buf, "nvm read", 8) == 0) { 1877 u16 buffer_len, bytes; 1878 u16 module; 1879 u32 offset; 1880 u16 *buff; 1881 int ret; 1882 1883 cnt = sscanf(&cmd_buf[8], "%hx %x %hx", 1884 &module, &offset, &buffer_len); 1885 if (cnt == 0) { 1886 module = 0; 1887 offset = 0; 1888 buffer_len = 0; 1889 } else if (cnt == 1) { 1890 offset = 0; 1891 buffer_len = 0; 1892 } else if (cnt == 2) { 1893 buffer_len = 0; 1894 } else if (cnt > 3) { 1895 dev_info(&pf->pdev->dev, 1896 "nvm read: bad command string, cnt=%d\n", cnt); 1897 goto command_write_done; 1898 } 1899 1900 /* set the max length */ 1901 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2); 1902 1903 bytes = 2 * buffer_len; 1904 1905 /* read at least 1k bytes, no more than 4kB */ 1906 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE); 1907 buff = kzalloc(bytes, GFP_KERNEL); 1908 if (!buff) 1909 goto command_write_done; 1910 1911 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ); 1912 if (ret) { 1913 dev_info(&pf->pdev->dev, 1914 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1915 ret, pf->hw.aq.asq_last_status); 1916 kfree(buff); 1917 goto command_write_done; 1918 } 1919 1920 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset), 1921 bytes, (u8 *)buff, true, NULL); 1922 i40e_release_nvm(&pf->hw); 1923 if (ret) { 1924 dev_info(&pf->pdev->dev, 1925 "Read NVM AQ failed err=%d status=0x%x\n", 1926 ret, pf->hw.aq.asq_last_status); 1927 } else { 1928 dev_info(&pf->pdev->dev, 1929 "Read NVM module=0x%x offset=0x%x words=%d\n", 1930 module, offset, buffer_len); 1931 if (bytes) 1932 print_hex_dump(KERN_INFO, "NVM Dump: ", 1933 DUMP_PREFIX_OFFSET, 16, 2, 1934 buff, bytes, true); 1935 } 1936 kfree(buff); 1937 buff = NULL; 1938 } else { 1939 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf); 1940 dev_info(&pf->pdev->dev, "available commands\n"); 1941 dev_info(&pf->pdev->dev, " add vsi [relay_seid]\n"); 1942 dev_info(&pf->pdev->dev, " del vsi [vsi_seid]\n"); 1943 dev_info(&pf->pdev->dev, " add relay <uplink_seid> <vsi_seid>\n"); 1944 dev_info(&pf->pdev->dev, " del relay <relay_seid>\n"); 1945 dev_info(&pf->pdev->dev, " add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n"); 1946 dev_info(&pf->pdev->dev, " del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n"); 1947 dev_info(&pf->pdev->dev, " add pvid <vsi_seid> <vid>\n"); 1948 dev_info(&pf->pdev->dev, " del pvid <vsi_seid>\n"); 1949 dev_info(&pf->pdev->dev, " dump switch\n"); 1950 dev_info(&pf->pdev->dev, " dump vsi [seid]\n"); 1951 dev_info(&pf->pdev->dev, " dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n"); 1952 dev_info(&pf->pdev->dev, " dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n"); 1953 dev_info(&pf->pdev->dev, " dump desc aq\n"); 1954 dev_info(&pf->pdev->dev, " dump stats\n"); 1955 dev_info(&pf->pdev->dev, " dump reset stats\n"); 1956 dev_info(&pf->pdev->dev, " msg_enable [level]\n"); 1957 dev_info(&pf->pdev->dev, " read <reg>\n"); 1958 dev_info(&pf->pdev->dev, " write <reg> <value>\n"); 1959 dev_info(&pf->pdev->dev, " clear_stats vsi [seid]\n"); 1960 dev_info(&pf->pdev->dev, " clear_stats pf\n"); 1961 dev_info(&pf->pdev->dev, " pfr\n"); 1962 dev_info(&pf->pdev->dev, " corer\n"); 1963 dev_info(&pf->pdev->dev, " globr\n"); 1964 dev_info(&pf->pdev->dev, " send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n"); 1965 dev_info(&pf->pdev->dev, " send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n"); 1966 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"); 1967 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"); 1968 dev_info(&pf->pdev->dev, " fd-atr off\n"); 1969 dev_info(&pf->pdev->dev, " fd-atr on\n"); 1970 dev_info(&pf->pdev->dev, " fd-sb off\n"); 1971 dev_info(&pf->pdev->dev, " fd-sb on\n"); 1972 dev_info(&pf->pdev->dev, " lldp start\n"); 1973 dev_info(&pf->pdev->dev, " lldp stop\n"); 1974 dev_info(&pf->pdev->dev, " lldp get local\n"); 1975 dev_info(&pf->pdev->dev, " lldp get remote\n"); 1976 dev_info(&pf->pdev->dev, " lldp event on\n"); 1977 dev_info(&pf->pdev->dev, " lldp event off\n"); 1978 dev_info(&pf->pdev->dev, " nvm read [module] [word_offset] [word_count]\n"); 1979 } 1980 1981 command_write_done: 1982 kfree(cmd_buf); 1983 cmd_buf = NULL; 1984 return count; 1985 } 1986 1987 static const struct file_operations i40e_dbg_command_fops = { 1988 .owner = THIS_MODULE, 1989 .open = simple_open, 1990 .read = i40e_dbg_command_read, 1991 .write = i40e_dbg_command_write, 1992 }; 1993 1994 /************************************************************** 1995 * netdev_ops 1996 * The netdev_ops entry in debugfs is for giving the driver commands 1997 * to be executed from the netdev operations. 1998 **************************************************************/ 1999 static char i40e_dbg_netdev_ops_buf[256] = "hello world"; 2000 2001 /** 2002 * i40e_dbg_netdev_ops - read for netdev_ops datum 2003 * @filp: the opened file 2004 * @buffer: where to write the data for the user to read 2005 * @count: the size of the user's buffer 2006 * @ppos: file position offset 2007 **/ 2008 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer, 2009 size_t count, loff_t *ppos) 2010 { 2011 struct i40e_pf *pf = filp->private_data; 2012 int bytes_not_copied; 2013 int buf_size = 256; 2014 char *buf; 2015 int len; 2016 2017 /* don't allow partal reads */ 2018 if (*ppos != 0) 2019 return 0; 2020 if (count < buf_size) 2021 return -ENOSPC; 2022 2023 buf = kzalloc(buf_size, GFP_KERNEL); 2024 if (!buf) 2025 return -ENOSPC; 2026 2027 len = snprintf(buf, buf_size, "%s: %s\n", 2028 pf->vsi[pf->lan_vsi]->netdev->name, 2029 i40e_dbg_netdev_ops_buf); 2030 2031 bytes_not_copied = copy_to_user(buffer, buf, len); 2032 kfree(buf); 2033 2034 if (bytes_not_copied < 0) 2035 return bytes_not_copied; 2036 2037 *ppos = len; 2038 return len; 2039 } 2040 2041 /** 2042 * i40e_dbg_netdev_ops_write - write into netdev_ops datum 2043 * @filp: the opened file 2044 * @buffer: where to find the user's data 2045 * @count: the length of the user's data 2046 * @ppos: file position offset 2047 **/ 2048 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp, 2049 const char __user *buffer, 2050 size_t count, loff_t *ppos) 2051 { 2052 struct i40e_pf *pf = filp->private_data; 2053 int bytes_not_copied; 2054 struct i40e_vsi *vsi; 2055 char *buf_tmp; 2056 int vsi_seid; 2057 int i, cnt; 2058 2059 /* don't allow partial writes */ 2060 if (*ppos != 0) 2061 return 0; 2062 if (count >= sizeof(i40e_dbg_netdev_ops_buf)) 2063 return -ENOSPC; 2064 2065 memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf)); 2066 bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf, 2067 buffer, count); 2068 if (bytes_not_copied < 0) 2069 return bytes_not_copied; 2070 else if (bytes_not_copied > 0) 2071 count -= bytes_not_copied; 2072 i40e_dbg_netdev_ops_buf[count] = '\0'; 2073 2074 buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n'); 2075 if (buf_tmp) { 2076 *buf_tmp = '\0'; 2077 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1; 2078 } 2079 2080 if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) { 2081 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid); 2082 if (cnt != 1) { 2083 dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n"); 2084 goto netdev_ops_write_done; 2085 } 2086 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2087 if (!vsi) { 2088 dev_info(&pf->pdev->dev, 2089 "tx_timeout: VSI %d not found\n", vsi_seid); 2090 } else if (!vsi->netdev) { 2091 dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n", 2092 vsi_seid); 2093 } else if (test_bit(__I40E_DOWN, &vsi->state)) { 2094 dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n", 2095 vsi_seid); 2096 } else if (rtnl_trylock()) { 2097 vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev); 2098 rtnl_unlock(); 2099 dev_info(&pf->pdev->dev, "tx_timeout called\n"); 2100 } else { 2101 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2102 } 2103 } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) { 2104 int mtu; 2105 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i", 2106 &vsi_seid, &mtu); 2107 if (cnt != 2) { 2108 dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n"); 2109 goto netdev_ops_write_done; 2110 } 2111 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2112 if (!vsi) { 2113 dev_info(&pf->pdev->dev, 2114 "change_mtu: VSI %d not found\n", vsi_seid); 2115 } else if (!vsi->netdev) { 2116 dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n", 2117 vsi_seid); 2118 } else if (rtnl_trylock()) { 2119 vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev, 2120 mtu); 2121 rtnl_unlock(); 2122 dev_info(&pf->pdev->dev, "change_mtu called\n"); 2123 } else { 2124 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2125 } 2126 2127 } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) { 2128 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid); 2129 if (cnt != 1) { 2130 dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n"); 2131 goto netdev_ops_write_done; 2132 } 2133 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2134 if (!vsi) { 2135 dev_info(&pf->pdev->dev, 2136 "set_rx_mode: VSI %d not found\n", vsi_seid); 2137 } else if (!vsi->netdev) { 2138 dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n", 2139 vsi_seid); 2140 } else if (rtnl_trylock()) { 2141 vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev); 2142 rtnl_unlock(); 2143 dev_info(&pf->pdev->dev, "set_rx_mode called\n"); 2144 } else { 2145 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2146 } 2147 2148 } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) { 2149 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid); 2150 if (cnt != 1) { 2151 dev_info(&pf->pdev->dev, "napi <vsi_seid>\n"); 2152 goto netdev_ops_write_done; 2153 } 2154 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2155 if (!vsi) { 2156 dev_info(&pf->pdev->dev, "napi: VSI %d not found\n", 2157 vsi_seid); 2158 } else if (!vsi->netdev) { 2159 dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n", 2160 vsi_seid); 2161 } else { 2162 for (i = 0; i < vsi->num_q_vectors; i++) 2163 napi_schedule(&vsi->q_vectors[i]->napi); 2164 dev_info(&pf->pdev->dev, "napi called\n"); 2165 } 2166 } else { 2167 dev_info(&pf->pdev->dev, "unknown command '%s'\n", 2168 i40e_dbg_netdev_ops_buf); 2169 dev_info(&pf->pdev->dev, "available commands\n"); 2170 dev_info(&pf->pdev->dev, " tx_timeout <vsi_seid>\n"); 2171 dev_info(&pf->pdev->dev, " change_mtu <vsi_seid> <mtu>\n"); 2172 dev_info(&pf->pdev->dev, " set_rx_mode <vsi_seid>\n"); 2173 dev_info(&pf->pdev->dev, " napi <vsi_seid>\n"); 2174 } 2175 netdev_ops_write_done: 2176 return count; 2177 } 2178 2179 static const struct file_operations i40e_dbg_netdev_ops_fops = { 2180 .owner = THIS_MODULE, 2181 .open = simple_open, 2182 .read = i40e_dbg_netdev_ops_read, 2183 .write = i40e_dbg_netdev_ops_write, 2184 }; 2185 2186 /** 2187 * i40e_dbg_pf_init - setup the debugfs directory for the pf 2188 * @pf: the pf that is starting up 2189 **/ 2190 void i40e_dbg_pf_init(struct i40e_pf *pf) 2191 { 2192 struct dentry *pfile; 2193 const char *name = pci_name(pf->pdev); 2194 const struct device *dev = &pf->pdev->dev; 2195 2196 pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root); 2197 if (!pf->i40e_dbg_pf) 2198 return; 2199 2200 pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf, 2201 &i40e_dbg_command_fops); 2202 if (!pfile) 2203 goto create_failed; 2204 2205 pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf, 2206 &i40e_dbg_dump_fops); 2207 if (!pfile) 2208 goto create_failed; 2209 2210 pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf, 2211 &i40e_dbg_netdev_ops_fops); 2212 if (!pfile) 2213 goto create_failed; 2214 2215 return; 2216 2217 create_failed: 2218 dev_info(dev, "debugfs dir/file for %s failed\n", name); 2219 debugfs_remove_recursive(pf->i40e_dbg_pf); 2220 return; 2221 } 2222 2223 /** 2224 * i40e_dbg_pf_exit - clear out the pf's debugfs entries 2225 * @pf: the pf that is stopping 2226 **/ 2227 void i40e_dbg_pf_exit(struct i40e_pf *pf) 2228 { 2229 debugfs_remove_recursive(pf->i40e_dbg_pf); 2230 pf->i40e_dbg_pf = NULL; 2231 2232 kfree(i40e_dbg_dump_buf); 2233 i40e_dbg_dump_buf = NULL; 2234 } 2235 2236 /** 2237 * i40e_dbg_init - start up debugfs for the driver 2238 **/ 2239 void i40e_dbg_init(void) 2240 { 2241 i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL); 2242 if (!i40e_dbg_root) 2243 pr_info("init of debugfs failed\n"); 2244 } 2245 2246 /** 2247 * i40e_dbg_exit - clean out the driver's debugfs entries 2248 **/ 2249 void i40e_dbg_exit(void) 2250 { 2251 debugfs_remove_recursive(i40e_dbg_root); 2252 i40e_dbg_root = NULL; 2253 } 2254 2255 #endif /* CONFIG_DEBUG_FS */ 2256