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 dev_info(&pf->pdev->dev, "requesting a pf reset\n"); 1019 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED)); 1020 } 1021 1022 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4) 1023 /** 1024 * i40e_dbg_command_write - write into command datum 1025 * @filp: the opened file 1026 * @buffer: where to find the user's data 1027 * @count: the length of the user's data 1028 * @ppos: file position offset 1029 **/ 1030 static ssize_t i40e_dbg_command_write(struct file *filp, 1031 const char __user *buffer, 1032 size_t count, loff_t *ppos) 1033 { 1034 struct i40e_pf *pf = filp->private_data; 1035 char *cmd_buf, *cmd_buf_tmp; 1036 int bytes_not_copied; 1037 struct i40e_vsi *vsi; 1038 int vsi_seid; 1039 int veb_seid; 1040 int cnt; 1041 1042 /* don't allow partial writes */ 1043 if (*ppos != 0) 1044 return 0; 1045 1046 cmd_buf = kzalloc(count + 1, GFP_KERNEL); 1047 if (!cmd_buf) 1048 return count; 1049 bytes_not_copied = copy_from_user(cmd_buf, buffer, count); 1050 if (bytes_not_copied < 0) 1051 return bytes_not_copied; 1052 if (bytes_not_copied > 0) 1053 count -= bytes_not_copied; 1054 cmd_buf[count] = '\0'; 1055 1056 cmd_buf_tmp = strchr(cmd_buf, '\n'); 1057 if (cmd_buf_tmp) { 1058 *cmd_buf_tmp = '\0'; 1059 count = cmd_buf_tmp - cmd_buf + 1; 1060 } 1061 1062 if (strncmp(cmd_buf, "add vsi", 7) == 0) { 1063 vsi_seid = -1; 1064 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid); 1065 if (cnt == 0) { 1066 /* default to PF VSI */ 1067 vsi_seid = pf->vsi[pf->lan_vsi]->seid; 1068 } else if (vsi_seid < 0) { 1069 dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n", 1070 vsi_seid); 1071 goto command_write_done; 1072 } 1073 1074 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0); 1075 if (vsi) 1076 dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n", 1077 vsi->seid, vsi->uplink_seid); 1078 else 1079 dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf); 1080 1081 } else if (strncmp(cmd_buf, "del vsi", 7) == 0) { 1082 sscanf(&cmd_buf[7], "%i", &vsi_seid); 1083 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1084 if (!vsi) { 1085 dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n", 1086 vsi_seid); 1087 goto command_write_done; 1088 } 1089 1090 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid); 1091 i40e_vsi_release(vsi); 1092 1093 } else if (strncmp(cmd_buf, "add relay", 9) == 0) { 1094 struct i40e_veb *veb; 1095 int uplink_seid, i; 1096 1097 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid); 1098 if (cnt != 2) { 1099 dev_info(&pf->pdev->dev, 1100 "add relay: bad command string, cnt=%d\n", 1101 cnt); 1102 goto command_write_done; 1103 } else if (uplink_seid < 0) { 1104 dev_info(&pf->pdev->dev, 1105 "add relay %d: bad uplink seid\n", 1106 uplink_seid); 1107 goto command_write_done; 1108 } 1109 1110 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1111 if (!vsi) { 1112 dev_info(&pf->pdev->dev, 1113 "add relay: VSI %d not found\n", vsi_seid); 1114 goto command_write_done; 1115 } 1116 1117 for (i = 0; i < I40E_MAX_VEB; i++) 1118 if (pf->veb[i] && pf->veb[i]->seid == uplink_seid) 1119 break; 1120 if (i >= I40E_MAX_VEB && uplink_seid != 0 && 1121 uplink_seid != pf->mac_seid) { 1122 dev_info(&pf->pdev->dev, 1123 "add relay: relay uplink %d not found\n", 1124 uplink_seid); 1125 goto command_write_done; 1126 } 1127 1128 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid, 1129 vsi->tc_config.enabled_tc); 1130 if (veb) 1131 dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid); 1132 else 1133 dev_info(&pf->pdev->dev, "add relay failed\n"); 1134 1135 } else if (strncmp(cmd_buf, "del relay", 9) == 0) { 1136 int i; 1137 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid); 1138 if (cnt != 1) { 1139 dev_info(&pf->pdev->dev, 1140 "del relay: bad command string, cnt=%d\n", 1141 cnt); 1142 goto command_write_done; 1143 } else if (veb_seid < 0) { 1144 dev_info(&pf->pdev->dev, 1145 "del relay %d: bad relay seid\n", veb_seid); 1146 goto command_write_done; 1147 } 1148 1149 /* find the veb */ 1150 for (i = 0; i < I40E_MAX_VEB; i++) 1151 if (pf->veb[i] && pf->veb[i]->seid == veb_seid) 1152 break; 1153 if (i >= I40E_MAX_VEB) { 1154 dev_info(&pf->pdev->dev, 1155 "del relay: relay %d not found\n", veb_seid); 1156 goto command_write_done; 1157 } 1158 1159 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid); 1160 i40e_veb_release(pf->veb[i]); 1161 1162 } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) { 1163 struct i40e_mac_filter *f; 1164 int vlan = 0; 1165 u8 ma[6]; 1166 int ret; 1167 1168 cnt = sscanf(&cmd_buf[11], 1169 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i", 1170 &vsi_seid, 1171 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5], 1172 &vlan); 1173 if (cnt == 7) { 1174 vlan = 0; 1175 } else if (cnt != 8) { 1176 dev_info(&pf->pdev->dev, 1177 "add macaddr: bad command string, cnt=%d\n", 1178 cnt); 1179 goto command_write_done; 1180 } 1181 1182 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1183 if (!vsi) { 1184 dev_info(&pf->pdev->dev, 1185 "add macaddr: VSI %d not found\n", vsi_seid); 1186 goto command_write_done; 1187 } 1188 1189 f = i40e_add_filter(vsi, ma, vlan, false, false); 1190 ret = i40e_sync_vsi_filters(vsi); 1191 if (f && !ret) 1192 dev_info(&pf->pdev->dev, 1193 "add macaddr: %pM vlan=%d added to VSI %d\n", 1194 ma, vlan, vsi_seid); 1195 else 1196 dev_info(&pf->pdev->dev, 1197 "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n", 1198 ma, vlan, vsi_seid, f, ret); 1199 1200 } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) { 1201 int vlan = 0; 1202 u8 ma[6]; 1203 int ret; 1204 1205 cnt = sscanf(&cmd_buf[11], 1206 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i", 1207 &vsi_seid, 1208 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5], 1209 &vlan); 1210 if (cnt == 7) { 1211 vlan = 0; 1212 } else if (cnt != 8) { 1213 dev_info(&pf->pdev->dev, 1214 "del macaddr: bad command string, cnt=%d\n", 1215 cnt); 1216 goto command_write_done; 1217 } 1218 1219 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1220 if (!vsi) { 1221 dev_info(&pf->pdev->dev, 1222 "del macaddr: VSI %d not found\n", vsi_seid); 1223 goto command_write_done; 1224 } 1225 1226 i40e_del_filter(vsi, ma, vlan, false, false); 1227 ret = i40e_sync_vsi_filters(vsi); 1228 if (!ret) 1229 dev_info(&pf->pdev->dev, 1230 "del macaddr: %pM vlan=%d removed from VSI %d\n", 1231 ma, vlan, vsi_seid); 1232 else 1233 dev_info(&pf->pdev->dev, 1234 "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n", 1235 ma, vlan, vsi_seid, ret); 1236 1237 } else if (strncmp(cmd_buf, "add pvid", 8) == 0) { 1238 i40e_status ret; 1239 u16 vid; 1240 int v; 1241 1242 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v); 1243 if (cnt != 2) { 1244 dev_info(&pf->pdev->dev, 1245 "add pvid: bad command string, cnt=%d\n", cnt); 1246 goto command_write_done; 1247 } 1248 1249 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1250 if (!vsi) { 1251 dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n", 1252 vsi_seid); 1253 goto command_write_done; 1254 } 1255 1256 vid = (unsigned)v; 1257 ret = i40e_vsi_add_pvid(vsi, vid); 1258 if (!ret) 1259 dev_info(&pf->pdev->dev, 1260 "add pvid: %d added to VSI %d\n", 1261 vid, vsi_seid); 1262 else 1263 dev_info(&pf->pdev->dev, 1264 "add pvid: %d to VSI %d failed, ret=%d\n", 1265 vid, vsi_seid, ret); 1266 1267 } else if (strncmp(cmd_buf, "del pvid", 8) == 0) { 1268 1269 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1270 if (cnt != 1) { 1271 dev_info(&pf->pdev->dev, 1272 "del pvid: bad command string, cnt=%d\n", 1273 cnt); 1274 goto command_write_done; 1275 } 1276 1277 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1278 if (!vsi) { 1279 dev_info(&pf->pdev->dev, 1280 "del pvid: VSI %d not found\n", vsi_seid); 1281 goto command_write_done; 1282 } 1283 1284 i40e_vsi_remove_pvid(vsi); 1285 dev_info(&pf->pdev->dev, 1286 "del pvid: removed from VSI %d\n", vsi_seid); 1287 1288 } else if (strncmp(cmd_buf, "dump", 4) == 0) { 1289 if (strncmp(&cmd_buf[5], "switch", 6) == 0) { 1290 i40e_fetch_switch_configuration(pf, true); 1291 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) { 1292 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1293 if (cnt > 0) 1294 i40e_dbg_dump_vsi_seid(pf, vsi_seid); 1295 else 1296 i40e_dbg_dump_vsi_no_seid(pf); 1297 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) { 1298 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid); 1299 if (cnt > 0) 1300 i40e_dbg_dump_veb_seid(pf, vsi_seid); 1301 else 1302 i40e_dbg_dump_veb_all(pf); 1303 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) { 1304 int ring_id, desc_n; 1305 if (strncmp(&cmd_buf[10], "rx", 2) == 0) { 1306 cnt = sscanf(&cmd_buf[12], "%i %i %i", 1307 &vsi_seid, &ring_id, &desc_n); 1308 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id, 1309 desc_n, pf, true); 1310 } else if (strncmp(&cmd_buf[10], "tx", 2) 1311 == 0) { 1312 cnt = sscanf(&cmd_buf[12], "%i %i %i", 1313 &vsi_seid, &ring_id, &desc_n); 1314 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id, 1315 desc_n, pf, false); 1316 } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) { 1317 i40e_dbg_dump_aq_desc(pf); 1318 } else { 1319 dev_info(&pf->pdev->dev, 1320 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n"); 1321 dev_info(&pf->pdev->dev, 1322 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n"); 1323 dev_info(&pf->pdev->dev, "dump desc aq\n"); 1324 } 1325 } else if (strncmp(&cmd_buf[5], "stats", 5) == 0) { 1326 dev_info(&pf->pdev->dev, "pf stats:\n"); 1327 i40e_dbg_dump_stats(pf, &pf->stats); 1328 dev_info(&pf->pdev->dev, "pf stats_offsets:\n"); 1329 i40e_dbg_dump_stats(pf, &pf->stats_offsets); 1330 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) { 1331 dev_info(&pf->pdev->dev, 1332 "core reset count: %d\n", pf->corer_count); 1333 dev_info(&pf->pdev->dev, 1334 "global reset count: %d\n", pf->globr_count); 1335 dev_info(&pf->pdev->dev, 1336 "emp reset count: %d\n", pf->empr_count); 1337 dev_info(&pf->pdev->dev, 1338 "pf reset count: %d\n", pf->pfr_count); 1339 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) { 1340 struct i40e_aqc_query_port_ets_config_resp *bw_data; 1341 struct i40e_dcbx_config *cfg = 1342 &pf->hw.local_dcbx_config; 1343 struct i40e_dcbx_config *r_cfg = 1344 &pf->hw.remote_dcbx_config; 1345 int i, ret; 1346 1347 bw_data = kzalloc(sizeof( 1348 struct i40e_aqc_query_port_ets_config_resp), 1349 GFP_KERNEL); 1350 if (!bw_data) { 1351 ret = -ENOMEM; 1352 goto command_write_done; 1353 } 1354 1355 ret = i40e_aq_query_port_ets_config(&pf->hw, 1356 pf->mac_seid, 1357 bw_data, NULL); 1358 if (ret) { 1359 dev_info(&pf->pdev->dev, 1360 "Query Port ETS Config AQ command failed =0x%x\n", 1361 pf->hw.aq.asq_last_status); 1362 kfree(bw_data); 1363 bw_data = NULL; 1364 goto command_write_done; 1365 } 1366 dev_info(&pf->pdev->dev, 1367 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n", 1368 bw_data->tc_valid_bits, 1369 bw_data->tc_strict_priority_bits, 1370 le16_to_cpu(bw_data->tc_bw_max[0]), 1371 le16_to_cpu(bw_data->tc_bw_max[1])); 1372 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1373 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n", 1374 bw_data->tc_bw_share_credits[i], 1375 le16_to_cpu(bw_data->tc_bw_limits[i])); 1376 } 1377 1378 kfree(bw_data); 1379 bw_data = NULL; 1380 1381 dev_info(&pf->pdev->dev, 1382 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n", 1383 cfg->etscfg.willing, cfg->etscfg.cbs, 1384 cfg->etscfg.maxtcs); 1385 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1386 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1387 i, cfg->etscfg.prioritytable[i], 1388 cfg->etscfg.tcbwtable[i], 1389 cfg->etscfg.tsatable[i]); 1390 } 1391 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1392 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1393 i, cfg->etsrec.prioritytable[i], 1394 cfg->etsrec.tcbwtable[i], 1395 cfg->etsrec.tsatable[i]); 1396 } 1397 dev_info(&pf->pdev->dev, 1398 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n", 1399 cfg->pfc.willing, cfg->pfc.mbc, 1400 cfg->pfc.pfccap, cfg->pfc.pfcenable); 1401 dev_info(&pf->pdev->dev, 1402 "port app_table: num_apps=%d\n", cfg->numapps); 1403 for (i = 0; i < cfg->numapps; i++) { 1404 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n", 1405 i, cfg->app[i].priority, 1406 cfg->app[i].selector, 1407 cfg->app[i].protocolid); 1408 } 1409 /* Peer TLV DCBX data */ 1410 dev_info(&pf->pdev->dev, 1411 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n", 1412 r_cfg->etscfg.willing, 1413 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs); 1414 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1415 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1416 i, r_cfg->etscfg.prioritytable[i], 1417 r_cfg->etscfg.tcbwtable[i], 1418 r_cfg->etscfg.tsatable[i]); 1419 } 1420 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1421 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n", 1422 i, r_cfg->etsrec.prioritytable[i], 1423 r_cfg->etsrec.tcbwtable[i], 1424 r_cfg->etsrec.tsatable[i]); 1425 } 1426 dev_info(&pf->pdev->dev, 1427 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n", 1428 r_cfg->pfc.willing, 1429 r_cfg->pfc.mbc, 1430 r_cfg->pfc.pfccap, 1431 r_cfg->pfc.pfcenable); 1432 dev_info(&pf->pdev->dev, 1433 "remote port app_table: num_apps=%d\n", 1434 r_cfg->numapps); 1435 for (i = 0; i < r_cfg->numapps; i++) { 1436 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n", 1437 i, r_cfg->app[i].priority, 1438 r_cfg->app[i].selector, 1439 r_cfg->app[i].protocolid); 1440 } 1441 } else { 1442 dev_info(&pf->pdev->dev, 1443 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n"); 1444 dev_info(&pf->pdev->dev, "dump switch, dump vsi [seid] or\n"); 1445 dev_info(&pf->pdev->dev, "dump stats\n"); 1446 dev_info(&pf->pdev->dev, "dump reset stats\n"); 1447 dev_info(&pf->pdev->dev, "dump port\n"); 1448 dev_info(&pf->pdev->dev, 1449 "dump debug fwdata <cluster_id> <table_id> <index>\n"); 1450 } 1451 1452 } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) { 1453 u32 level; 1454 cnt = sscanf(&cmd_buf[10], "%i", &level); 1455 if (cnt) { 1456 if (I40E_DEBUG_USER & level) { 1457 pf->hw.debug_mask = level; 1458 dev_info(&pf->pdev->dev, 1459 "set hw.debug_mask = 0x%08x\n", 1460 pf->hw.debug_mask); 1461 } 1462 pf->msg_enable = level; 1463 dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n", 1464 pf->msg_enable); 1465 } else { 1466 dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n", 1467 pf->msg_enable); 1468 } 1469 } else if (strncmp(cmd_buf, "pfr", 3) == 0) { 1470 dev_info(&pf->pdev->dev, "forcing PFR\n"); 1471 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED)); 1472 1473 } else if (strncmp(cmd_buf, "corer", 5) == 0) { 1474 dev_info(&pf->pdev->dev, "forcing CoreR\n"); 1475 i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED)); 1476 1477 } else if (strncmp(cmd_buf, "globr", 5) == 0) { 1478 dev_info(&pf->pdev->dev, "forcing GlobR\n"); 1479 i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED)); 1480 1481 } else if (strncmp(cmd_buf, "empr", 4) == 0) { 1482 dev_info(&pf->pdev->dev, "forcing EMPR\n"); 1483 i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED)); 1484 1485 } else if (strncmp(cmd_buf, "read", 4) == 0) { 1486 u32 address; 1487 u32 value; 1488 cnt = sscanf(&cmd_buf[4], "%i", &address); 1489 if (cnt != 1) { 1490 dev_info(&pf->pdev->dev, "read <reg>\n"); 1491 goto command_write_done; 1492 } 1493 1494 /* check the range on address */ 1495 if (address >= I40E_MAX_REGISTER) { 1496 dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n", 1497 address); 1498 goto command_write_done; 1499 } 1500 1501 value = rd32(&pf->hw, address); 1502 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n", 1503 address, value); 1504 1505 } else if (strncmp(cmd_buf, "write", 5) == 0) { 1506 u32 address, value; 1507 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value); 1508 if (cnt != 2) { 1509 dev_info(&pf->pdev->dev, "write <reg> <value>\n"); 1510 goto command_write_done; 1511 } 1512 1513 /* check the range on address */ 1514 if (address >= I40E_MAX_REGISTER) { 1515 dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n", 1516 address); 1517 goto command_write_done; 1518 } 1519 wr32(&pf->hw, address, value); 1520 value = rd32(&pf->hw, address); 1521 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n", 1522 address, value); 1523 } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) { 1524 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) { 1525 cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid); 1526 if (cnt == 0) { 1527 int i; 1528 for (i = 0; i < pf->hw.func_caps.num_vsis; i++) 1529 i40e_vsi_reset_stats(pf->vsi[i]); 1530 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n"); 1531 } else if (cnt == 1) { 1532 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 1533 if (!vsi) { 1534 dev_info(&pf->pdev->dev, 1535 "clear_stats vsi: bad vsi %d\n", 1536 vsi_seid); 1537 goto command_write_done; 1538 } 1539 i40e_vsi_reset_stats(vsi); 1540 dev_info(&pf->pdev->dev, 1541 "vsi clear stats called for vsi %d\n", 1542 vsi_seid); 1543 } else { 1544 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n"); 1545 } 1546 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) { 1547 i40e_pf_reset_stats(pf); 1548 dev_info(&pf->pdev->dev, "pf clear stats called\n"); 1549 } else { 1550 dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n"); 1551 } 1552 } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) { 1553 struct i40e_aq_desc *desc; 1554 i40e_status ret; 1555 1556 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL); 1557 if (!desc) 1558 goto command_write_done; 1559 cnt = sscanf(&cmd_buf[11], 1560 "%hx %hx %hx %hx %x %x %x %x %x %x", 1561 &desc->flags, 1562 &desc->opcode, &desc->datalen, &desc->retval, 1563 &desc->cookie_high, &desc->cookie_low, 1564 &desc->params.internal.param0, 1565 &desc->params.internal.param1, 1566 &desc->params.internal.param2, 1567 &desc->params.internal.param3); 1568 if (cnt != 10) { 1569 dev_info(&pf->pdev->dev, 1570 "send aq_cmd: bad command string, cnt=%d\n", 1571 cnt); 1572 kfree(desc); 1573 desc = NULL; 1574 goto command_write_done; 1575 } 1576 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL); 1577 if (!ret) { 1578 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n"); 1579 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) { 1580 dev_info(&pf->pdev->dev, 1581 "AQ command send failed Opcode %x AQ Error: %d\n", 1582 desc->opcode, pf->hw.aq.asq_last_status); 1583 } else { 1584 dev_info(&pf->pdev->dev, 1585 "AQ command send failed Opcode %x Status: %d\n", 1586 desc->opcode, ret); 1587 } 1588 dev_info(&pf->pdev->dev, 1589 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", 1590 desc->flags, desc->opcode, desc->datalen, desc->retval, 1591 desc->cookie_high, desc->cookie_low, 1592 desc->params.internal.param0, 1593 desc->params.internal.param1, 1594 desc->params.internal.param2, 1595 desc->params.internal.param3); 1596 kfree(desc); 1597 desc = NULL; 1598 } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) { 1599 struct i40e_aq_desc *desc; 1600 i40e_status ret; 1601 u16 buffer_len; 1602 u8 *buff; 1603 1604 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL); 1605 if (!desc) 1606 goto command_write_done; 1607 cnt = sscanf(&cmd_buf[20], 1608 "%hx %hx %hx %hx %x %x %x %x %x %x %hd", 1609 &desc->flags, 1610 &desc->opcode, &desc->datalen, &desc->retval, 1611 &desc->cookie_high, &desc->cookie_low, 1612 &desc->params.internal.param0, 1613 &desc->params.internal.param1, 1614 &desc->params.internal.param2, 1615 &desc->params.internal.param3, 1616 &buffer_len); 1617 if (cnt != 11) { 1618 dev_info(&pf->pdev->dev, 1619 "send indirect aq_cmd: bad command string, cnt=%d\n", 1620 cnt); 1621 kfree(desc); 1622 desc = NULL; 1623 goto command_write_done; 1624 } 1625 /* Just stub a buffer big enough in case user messed up */ 1626 if (buffer_len == 0) 1627 buffer_len = 1280; 1628 1629 buff = kzalloc(buffer_len, GFP_KERNEL); 1630 if (!buff) { 1631 kfree(desc); 1632 desc = NULL; 1633 goto command_write_done; 1634 } 1635 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF); 1636 ret = i40e_asq_send_command(&pf->hw, desc, buff, 1637 buffer_len, NULL); 1638 if (!ret) { 1639 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n"); 1640 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) { 1641 dev_info(&pf->pdev->dev, 1642 "AQ command send failed Opcode %x AQ Error: %d\n", 1643 desc->opcode, pf->hw.aq.asq_last_status); 1644 } else { 1645 dev_info(&pf->pdev->dev, 1646 "AQ command send failed Opcode %x Status: %d\n", 1647 desc->opcode, ret); 1648 } 1649 dev_info(&pf->pdev->dev, 1650 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", 1651 desc->flags, desc->opcode, desc->datalen, desc->retval, 1652 desc->cookie_high, desc->cookie_low, 1653 desc->params.internal.param0, 1654 desc->params.internal.param1, 1655 desc->params.internal.param2, 1656 desc->params.internal.param3); 1657 print_hex_dump(KERN_INFO, "AQ buffer WB: ", 1658 DUMP_PREFIX_OFFSET, 16, 1, 1659 buff, buffer_len, true); 1660 kfree(buff); 1661 buff = NULL; 1662 kfree(desc); 1663 desc = NULL; 1664 } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) || 1665 (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) { 1666 struct i40e_fdir_data fd_data; 1667 u16 packet_len, i, j = 0; 1668 char *asc_packet; 1669 bool add = false; 1670 int ret; 1671 1672 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP, 1673 GFP_KERNEL); 1674 if (!asc_packet) 1675 goto command_write_done; 1676 1677 fd_data.raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP, 1678 GFP_KERNEL); 1679 1680 if (!fd_data.raw_packet) { 1681 kfree(asc_packet); 1682 asc_packet = NULL; 1683 goto command_write_done; 1684 } 1685 1686 if (strncmp(cmd_buf, "add", 3) == 0) 1687 add = true; 1688 cnt = sscanf(&cmd_buf[13], 1689 "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s", 1690 &fd_data.q_index, 1691 &fd_data.flex_off, &fd_data.pctype, 1692 &fd_data.dest_vsi, &fd_data.dest_ctl, 1693 &fd_data.fd_status, &fd_data.cnt_index, 1694 &fd_data.fd_id, &packet_len, asc_packet); 1695 if (cnt != 10) { 1696 dev_info(&pf->pdev->dev, 1697 "program fd_filter: bad command string, cnt=%d\n", 1698 cnt); 1699 kfree(asc_packet); 1700 asc_packet = NULL; 1701 kfree(fd_data.raw_packet); 1702 goto command_write_done; 1703 } 1704 1705 /* fix packet length if user entered 0 */ 1706 if (packet_len == 0) 1707 packet_len = I40E_FDIR_MAX_RAW_PACKET_LOOKUP; 1708 1709 /* make sure to check the max as well */ 1710 packet_len = min_t(u16, 1711 packet_len, I40E_FDIR_MAX_RAW_PACKET_LOOKUP); 1712 1713 for (i = 0; i < packet_len; i++) { 1714 sscanf(&asc_packet[j], "%2hhx ", 1715 &fd_data.raw_packet[i]); 1716 j += 3; 1717 } 1718 dev_info(&pf->pdev->dev, "FD raw packet dump\n"); 1719 print_hex_dump(KERN_INFO, "FD raw packet: ", 1720 DUMP_PREFIX_OFFSET, 16, 1, 1721 fd_data.raw_packet, packet_len, true); 1722 ret = i40e_program_fdir_filter(&fd_data, pf, add); 1723 if (!ret) { 1724 dev_info(&pf->pdev->dev, "Filter command send Status : Success\n"); 1725 } else { 1726 dev_info(&pf->pdev->dev, 1727 "Filter command send failed %d\n", ret); 1728 } 1729 kfree(fd_data.raw_packet); 1730 fd_data.raw_packet = NULL; 1731 kfree(asc_packet); 1732 asc_packet = NULL; 1733 } else if (strncmp(cmd_buf, "fd-atr off", 10) == 0) { 1734 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, false); 1735 } else if (strncmp(cmd_buf, "fd-atr on", 9) == 0) { 1736 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, true); 1737 } else if (strncmp(cmd_buf, "fd-sb off", 9) == 0) { 1738 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_SB_ENABLED, false); 1739 } else if (strncmp(cmd_buf, "fd-sb on", 8) == 0) { 1740 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_SB_ENABLED, true); 1741 } else if (strncmp(cmd_buf, "lldp", 4) == 0) { 1742 if (strncmp(&cmd_buf[5], "stop", 4) == 0) { 1743 int ret; 1744 ret = i40e_aq_stop_lldp(&pf->hw, false, NULL); 1745 if (ret) { 1746 dev_info(&pf->pdev->dev, 1747 "Stop LLDP AQ command failed =0x%x\n", 1748 pf->hw.aq.asq_last_status); 1749 goto command_write_done; 1750 } 1751 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw, 1752 pf->hw.mac.addr, 1753 I40E_ETH_P_LLDP, 0, 1754 pf->vsi[pf->lan_vsi]->seid, 1755 0, true, NULL, NULL); 1756 if (ret) { 1757 dev_info(&pf->pdev->dev, 1758 "%s: Add Control Packet Filter AQ command failed =0x%x\n", 1759 __func__, pf->hw.aq.asq_last_status); 1760 goto command_write_done; 1761 } 1762 #ifdef CONFIG_I40E_DCB 1763 pf->dcbx_cap = DCB_CAP_DCBX_HOST | 1764 DCB_CAP_DCBX_VER_IEEE; 1765 #endif /* CONFIG_I40E_DCB */ 1766 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) { 1767 int ret; 1768 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw, 1769 pf->hw.mac.addr, 1770 I40E_ETH_P_LLDP, 0, 1771 pf->vsi[pf->lan_vsi]->seid, 1772 0, false, NULL, NULL); 1773 if (ret) { 1774 dev_info(&pf->pdev->dev, 1775 "%s: Remove Control Packet Filter AQ command failed =0x%x\n", 1776 __func__, pf->hw.aq.asq_last_status); 1777 /* Continue and start FW LLDP anyways */ 1778 } 1779 1780 ret = i40e_aq_start_lldp(&pf->hw, NULL); 1781 if (ret) { 1782 dev_info(&pf->pdev->dev, 1783 "Start LLDP AQ command failed =0x%x\n", 1784 pf->hw.aq.asq_last_status); 1785 goto command_write_done; 1786 } 1787 #ifdef CONFIG_I40E_DCB 1788 pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED | 1789 DCB_CAP_DCBX_VER_IEEE; 1790 #endif /* CONFIG_I40E_DCB */ 1791 } else if (strncmp(&cmd_buf[5], 1792 "get local", 9) == 0) { 1793 u16 llen, rlen; 1794 int ret; 1795 u8 *buff; 1796 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL); 1797 if (!buff) 1798 goto command_write_done; 1799 1800 ret = i40e_aq_get_lldp_mib(&pf->hw, 0, 1801 I40E_AQ_LLDP_MIB_LOCAL, 1802 buff, I40E_LLDPDU_SIZE, 1803 &llen, &rlen, NULL); 1804 if (ret) { 1805 dev_info(&pf->pdev->dev, 1806 "Get LLDP MIB (local) AQ command failed =0x%x\n", 1807 pf->hw.aq.asq_last_status); 1808 kfree(buff); 1809 buff = NULL; 1810 goto command_write_done; 1811 } 1812 dev_info(&pf->pdev->dev, "LLDP MIB (local)\n"); 1813 print_hex_dump(KERN_INFO, "LLDP MIB (local): ", 1814 DUMP_PREFIX_OFFSET, 16, 1, 1815 buff, I40E_LLDPDU_SIZE, true); 1816 kfree(buff); 1817 buff = NULL; 1818 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) { 1819 u16 llen, rlen; 1820 int ret; 1821 u8 *buff; 1822 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL); 1823 if (!buff) 1824 goto command_write_done; 1825 1826 ret = i40e_aq_get_lldp_mib(&pf->hw, 1827 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE, 1828 I40E_AQ_LLDP_MIB_LOCAL, 1829 buff, I40E_LLDPDU_SIZE, 1830 &llen, &rlen, NULL); 1831 if (ret) { 1832 dev_info(&pf->pdev->dev, 1833 "Get LLDP MIB (remote) AQ command failed =0x%x\n", 1834 pf->hw.aq.asq_last_status); 1835 kfree(buff); 1836 buff = NULL; 1837 goto command_write_done; 1838 } 1839 dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n"); 1840 print_hex_dump(KERN_INFO, "LLDP MIB (remote): ", 1841 DUMP_PREFIX_OFFSET, 16, 1, 1842 buff, I40E_LLDPDU_SIZE, true); 1843 kfree(buff); 1844 buff = NULL; 1845 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) { 1846 int ret; 1847 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw, 1848 true, NULL); 1849 if (ret) { 1850 dev_info(&pf->pdev->dev, 1851 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n", 1852 pf->hw.aq.asq_last_status); 1853 goto command_write_done; 1854 } 1855 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) { 1856 int ret; 1857 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw, 1858 false, NULL); 1859 if (ret) { 1860 dev_info(&pf->pdev->dev, 1861 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n", 1862 pf->hw.aq.asq_last_status); 1863 goto command_write_done; 1864 } 1865 } 1866 } else if (strncmp(cmd_buf, "nvm read", 8) == 0) { 1867 u16 buffer_len, bytes; 1868 u16 module; 1869 u32 offset; 1870 u16 *buff; 1871 int ret; 1872 1873 cnt = sscanf(&cmd_buf[8], "%hx %x %hx", 1874 &module, &offset, &buffer_len); 1875 if (cnt == 0) { 1876 module = 0; 1877 offset = 0; 1878 buffer_len = 0; 1879 } else if (cnt == 1) { 1880 offset = 0; 1881 buffer_len = 0; 1882 } else if (cnt == 2) { 1883 buffer_len = 0; 1884 } else if (cnt > 3) { 1885 dev_info(&pf->pdev->dev, 1886 "nvm read: bad command string, cnt=%d\n", cnt); 1887 goto command_write_done; 1888 } 1889 1890 /* set the max length */ 1891 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2); 1892 1893 bytes = 2 * buffer_len; 1894 1895 /* read at least 1k bytes, no more than 4kB */ 1896 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE); 1897 buff = kzalloc(bytes, GFP_KERNEL); 1898 if (!buff) 1899 goto command_write_done; 1900 1901 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ); 1902 if (ret) { 1903 dev_info(&pf->pdev->dev, 1904 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1905 ret, pf->hw.aq.asq_last_status); 1906 kfree(buff); 1907 goto command_write_done; 1908 } 1909 1910 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset), 1911 bytes, (u8 *)buff, true, NULL); 1912 i40e_release_nvm(&pf->hw); 1913 if (ret) { 1914 dev_info(&pf->pdev->dev, 1915 "Read NVM AQ failed err=%d status=0x%x\n", 1916 ret, pf->hw.aq.asq_last_status); 1917 } else { 1918 dev_info(&pf->pdev->dev, 1919 "Read NVM module=0x%x offset=0x%x words=%d\n", 1920 module, offset, buffer_len); 1921 if (bytes) 1922 print_hex_dump(KERN_INFO, "NVM Dump: ", 1923 DUMP_PREFIX_OFFSET, 16, 2, 1924 buff, bytes, true); 1925 } 1926 kfree(buff); 1927 buff = NULL; 1928 } else { 1929 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf); 1930 dev_info(&pf->pdev->dev, "available commands\n"); 1931 dev_info(&pf->pdev->dev, " add vsi [relay_seid]\n"); 1932 dev_info(&pf->pdev->dev, " del vsi [vsi_seid]\n"); 1933 dev_info(&pf->pdev->dev, " add relay <uplink_seid> <vsi_seid>\n"); 1934 dev_info(&pf->pdev->dev, " del relay <relay_seid>\n"); 1935 dev_info(&pf->pdev->dev, " add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n"); 1936 dev_info(&pf->pdev->dev, " del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n"); 1937 dev_info(&pf->pdev->dev, " add pvid <vsi_seid> <vid>\n"); 1938 dev_info(&pf->pdev->dev, " del pvid <vsi_seid>\n"); 1939 dev_info(&pf->pdev->dev, " dump switch\n"); 1940 dev_info(&pf->pdev->dev, " dump vsi [seid]\n"); 1941 dev_info(&pf->pdev->dev, " dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n"); 1942 dev_info(&pf->pdev->dev, " dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n"); 1943 dev_info(&pf->pdev->dev, " dump desc aq\n"); 1944 dev_info(&pf->pdev->dev, " dump stats\n"); 1945 dev_info(&pf->pdev->dev, " dump reset stats\n"); 1946 dev_info(&pf->pdev->dev, " msg_enable [level]\n"); 1947 dev_info(&pf->pdev->dev, " read <reg>\n"); 1948 dev_info(&pf->pdev->dev, " write <reg> <value>\n"); 1949 dev_info(&pf->pdev->dev, " clear_stats vsi [seid]\n"); 1950 dev_info(&pf->pdev->dev, " clear_stats pf\n"); 1951 dev_info(&pf->pdev->dev, " pfr\n"); 1952 dev_info(&pf->pdev->dev, " corer\n"); 1953 dev_info(&pf->pdev->dev, " globr\n"); 1954 dev_info(&pf->pdev->dev, " send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n"); 1955 dev_info(&pf->pdev->dev, " send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n"); 1956 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"); 1957 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"); 1958 dev_info(&pf->pdev->dev, " fd-atr off\n"); 1959 dev_info(&pf->pdev->dev, " fd-atr on\n"); 1960 dev_info(&pf->pdev->dev, " fd-sb off\n"); 1961 dev_info(&pf->pdev->dev, " fd-sb on\n"); 1962 dev_info(&pf->pdev->dev, " lldp start\n"); 1963 dev_info(&pf->pdev->dev, " lldp stop\n"); 1964 dev_info(&pf->pdev->dev, " lldp get local\n"); 1965 dev_info(&pf->pdev->dev, " lldp get remote\n"); 1966 dev_info(&pf->pdev->dev, " lldp event on\n"); 1967 dev_info(&pf->pdev->dev, " lldp event off\n"); 1968 dev_info(&pf->pdev->dev, " nvm read [module] [word_offset] [word_count]\n"); 1969 } 1970 1971 command_write_done: 1972 kfree(cmd_buf); 1973 cmd_buf = NULL; 1974 return count; 1975 } 1976 1977 static const struct file_operations i40e_dbg_command_fops = { 1978 .owner = THIS_MODULE, 1979 .open = simple_open, 1980 .read = i40e_dbg_command_read, 1981 .write = i40e_dbg_command_write, 1982 }; 1983 1984 /************************************************************** 1985 * netdev_ops 1986 * The netdev_ops entry in debugfs is for giving the driver commands 1987 * to be executed from the netdev operations. 1988 **************************************************************/ 1989 static char i40e_dbg_netdev_ops_buf[256] = "hello world"; 1990 1991 /** 1992 * i40e_dbg_netdev_ops - read for netdev_ops datum 1993 * @filp: the opened file 1994 * @buffer: where to write the data for the user to read 1995 * @count: the size of the user's buffer 1996 * @ppos: file position offset 1997 **/ 1998 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer, 1999 size_t count, loff_t *ppos) 2000 { 2001 struct i40e_pf *pf = filp->private_data; 2002 int bytes_not_copied; 2003 int buf_size = 256; 2004 char *buf; 2005 int len; 2006 2007 /* don't allow partal reads */ 2008 if (*ppos != 0) 2009 return 0; 2010 if (count < buf_size) 2011 return -ENOSPC; 2012 2013 buf = kzalloc(buf_size, GFP_KERNEL); 2014 if (!buf) 2015 return -ENOSPC; 2016 2017 len = snprintf(buf, buf_size, "%s: %s\n", 2018 pf->vsi[pf->lan_vsi]->netdev->name, 2019 i40e_dbg_netdev_ops_buf); 2020 2021 bytes_not_copied = copy_to_user(buffer, buf, len); 2022 kfree(buf); 2023 2024 if (bytes_not_copied < 0) 2025 return bytes_not_copied; 2026 2027 *ppos = len; 2028 return len; 2029 } 2030 2031 /** 2032 * i40e_dbg_netdev_ops_write - write into netdev_ops datum 2033 * @filp: the opened file 2034 * @buffer: where to find the user's data 2035 * @count: the length of the user's data 2036 * @ppos: file position offset 2037 **/ 2038 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp, 2039 const char __user *buffer, 2040 size_t count, loff_t *ppos) 2041 { 2042 struct i40e_pf *pf = filp->private_data; 2043 int bytes_not_copied; 2044 struct i40e_vsi *vsi; 2045 char *buf_tmp; 2046 int vsi_seid; 2047 int i, cnt; 2048 2049 /* don't allow partial writes */ 2050 if (*ppos != 0) 2051 return 0; 2052 if (count >= sizeof(i40e_dbg_netdev_ops_buf)) 2053 return -ENOSPC; 2054 2055 memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf)); 2056 bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf, 2057 buffer, count); 2058 if (bytes_not_copied < 0) 2059 return bytes_not_copied; 2060 else if (bytes_not_copied > 0) 2061 count -= bytes_not_copied; 2062 i40e_dbg_netdev_ops_buf[count] = '\0'; 2063 2064 buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n'); 2065 if (buf_tmp) { 2066 *buf_tmp = '\0'; 2067 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1; 2068 } 2069 2070 if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) { 2071 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid); 2072 if (cnt != 1) { 2073 dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n"); 2074 goto netdev_ops_write_done; 2075 } 2076 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2077 if (!vsi) { 2078 dev_info(&pf->pdev->dev, 2079 "tx_timeout: VSI %d not found\n", vsi_seid); 2080 goto netdev_ops_write_done; 2081 } 2082 if (rtnl_trylock()) { 2083 vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev); 2084 rtnl_unlock(); 2085 dev_info(&pf->pdev->dev, "tx_timeout called\n"); 2086 } else { 2087 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2088 } 2089 } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) { 2090 int mtu; 2091 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i", 2092 &vsi_seid, &mtu); 2093 if (cnt != 2) { 2094 dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n"); 2095 goto netdev_ops_write_done; 2096 } 2097 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2098 if (!vsi) { 2099 dev_info(&pf->pdev->dev, 2100 "change_mtu: VSI %d not found\n", vsi_seid); 2101 goto netdev_ops_write_done; 2102 } 2103 if (rtnl_trylock()) { 2104 vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev, 2105 mtu); 2106 rtnl_unlock(); 2107 dev_info(&pf->pdev->dev, "change_mtu called\n"); 2108 } else { 2109 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2110 } 2111 2112 } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) { 2113 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid); 2114 if (cnt != 1) { 2115 dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n"); 2116 goto netdev_ops_write_done; 2117 } 2118 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2119 if (!vsi) { 2120 dev_info(&pf->pdev->dev, 2121 "set_rx_mode: VSI %d not found\n", vsi_seid); 2122 goto netdev_ops_write_done; 2123 } 2124 if (rtnl_trylock()) { 2125 vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev); 2126 rtnl_unlock(); 2127 dev_info(&pf->pdev->dev, "set_rx_mode called\n"); 2128 } else { 2129 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n"); 2130 } 2131 2132 } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) { 2133 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid); 2134 if (cnt != 1) { 2135 dev_info(&pf->pdev->dev, "napi <vsi_seid>\n"); 2136 goto netdev_ops_write_done; 2137 } 2138 vsi = i40e_dbg_find_vsi(pf, vsi_seid); 2139 if (!vsi) { 2140 dev_info(&pf->pdev->dev, "napi: VSI %d not found\n", 2141 vsi_seid); 2142 goto netdev_ops_write_done; 2143 } 2144 for (i = 0; i < vsi->num_q_vectors; i++) 2145 napi_schedule(&vsi->q_vectors[i]->napi); 2146 dev_info(&pf->pdev->dev, "napi called\n"); 2147 } else { 2148 dev_info(&pf->pdev->dev, "unknown command '%s'\n", 2149 i40e_dbg_netdev_ops_buf); 2150 dev_info(&pf->pdev->dev, "available commands\n"); 2151 dev_info(&pf->pdev->dev, " tx_timeout <vsi_seid>\n"); 2152 dev_info(&pf->pdev->dev, " change_mtu <vsi_seid> <mtu>\n"); 2153 dev_info(&pf->pdev->dev, " set_rx_mode <vsi_seid>\n"); 2154 dev_info(&pf->pdev->dev, " napi <vsi_seid>\n"); 2155 } 2156 netdev_ops_write_done: 2157 return count; 2158 } 2159 2160 static const struct file_operations i40e_dbg_netdev_ops_fops = { 2161 .owner = THIS_MODULE, 2162 .open = simple_open, 2163 .read = i40e_dbg_netdev_ops_read, 2164 .write = i40e_dbg_netdev_ops_write, 2165 }; 2166 2167 /** 2168 * i40e_dbg_pf_init - setup the debugfs directory for the pf 2169 * @pf: the pf that is starting up 2170 **/ 2171 void i40e_dbg_pf_init(struct i40e_pf *pf) 2172 { 2173 struct dentry *pfile; 2174 const char *name = pci_name(pf->pdev); 2175 const struct device *dev = &pf->pdev->dev; 2176 2177 pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root); 2178 if (!pf->i40e_dbg_pf) 2179 return; 2180 2181 pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf, 2182 &i40e_dbg_command_fops); 2183 if (!pfile) 2184 goto create_failed; 2185 2186 pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf, 2187 &i40e_dbg_dump_fops); 2188 if (!pfile) 2189 goto create_failed; 2190 2191 pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf, 2192 &i40e_dbg_netdev_ops_fops); 2193 if (!pfile) 2194 goto create_failed; 2195 2196 return; 2197 2198 create_failed: 2199 dev_info(dev, "debugfs dir/file for %s failed\n", name); 2200 debugfs_remove_recursive(pf->i40e_dbg_pf); 2201 return; 2202 } 2203 2204 /** 2205 * i40e_dbg_pf_exit - clear out the pf's debugfs entries 2206 * @pf: the pf that is stopping 2207 **/ 2208 void i40e_dbg_pf_exit(struct i40e_pf *pf) 2209 { 2210 debugfs_remove_recursive(pf->i40e_dbg_pf); 2211 pf->i40e_dbg_pf = NULL; 2212 2213 kfree(i40e_dbg_dump_buf); 2214 i40e_dbg_dump_buf = NULL; 2215 } 2216 2217 /** 2218 * i40e_dbg_init - start up debugfs for the driver 2219 **/ 2220 void i40e_dbg_init(void) 2221 { 2222 i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL); 2223 if (!i40e_dbg_root) 2224 pr_info("init of debugfs failed\n"); 2225 } 2226 2227 /** 2228 * i40e_dbg_exit - clean out the driver's debugfs entries 2229 **/ 2230 void i40e_dbg_exit(void) 2231 { 2232 debugfs_remove_recursive(i40e_dbg_root); 2233 i40e_dbg_root = NULL; 2234 } 2235 2236 #endif /* CONFIG_DEBUG_FS */ 2237