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lpfc_debugfs.c
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linux-6.19.14/drivers/scsi/lpfc/lpfc_debugfs.c
1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2025 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2007-2015 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * * 10 * This program is free software; you can redistribute it and/or * 11 * modify it under the terms of version 2 of the GNU General * 12 * Public License as published by the Free Software Foundation. * 13 * This program is distributed in the hope that it will be useful. * 14 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 15 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 16 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 17 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 18 * TO BE LEGALLY INVALID. See the GNU General Public License for * 19 * more details, a copy of which can be found in the file COPYING * 20 * included with this package. * 21 *******************************************************************/ 22 23#include <linux/blkdev.h> 24#include <linux/delay.h> 25#include <linux/module.h> 26#include <linux/dma-mapping.h> 27#include <linux/idr.h> 28#include <linux/interrupt.h> 29#include <linux/kthread.h> 30#include <linux/slab.h> 31#include <linux/pci.h> 32#include <linux/spinlock.h> 33#include <linux/ctype.h> 34#include <linux/vmalloc.h> 35 36#include <scsi/scsi.h> 37#include <scsi/scsi_device.h> 38#include <scsi/scsi_host.h> 39#include <scsi/scsi_transport_fc.h> 40#include <scsi/fc/fc_fs.h> 41 42#include "lpfc_hw4.h" 43#include "lpfc_hw.h" 44#include "lpfc_sli.h" 45#include "lpfc_sli4.h" 46#include "lpfc_nl.h" 47#include "lpfc_disc.h" 48#include "lpfc.h" 49#include "lpfc_scsi.h" 50#include "lpfc_nvme.h" 51#include "lpfc_logmsg.h" 52#include "lpfc_crtn.h" 53#include "lpfc_vport.h" 54#include "lpfc_version.h" 55#include "lpfc_compat.h" 56#include "lpfc_debugfs.h" 57#include "lpfc_bsg.h" 58 59#ifdef CONFIG_SCSI_LPFC_DEBUG_FS 60/* 61 * debugfs interface 62 * 63 * To access this interface the user should: 64 * # mount -t debugfs none /sys/kernel/debug 65 * 66 * The lpfc debugfs directory hierarchy is: 67 * /sys/kernel/debug/lpfc/fnX/vportY 68 * where X is the lpfc hba function unique_id 69 * where Y is the vport VPI on that hba 70 * 71 * Debugging services available per vport: 72 * discovery_trace 73 * This is an ACSII readable file that contains a trace of the last 74 * lpfc_debugfs_max_disc_trc events that happened on a specific vport. 75 * See lpfc_debugfs.h for different categories of discovery events. 76 * To enable the discovery trace, the following module parameters must be set: 77 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 78 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for 79 * EACH vport. X MUST also be a power of 2. 80 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in 81 * lpfc_debugfs.h . 82 * 83 * slow_ring_trace 84 * This is an ACSII readable file that contains a trace of the last 85 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. 86 * To enable the slow ring trace, the following module parameters must be set: 87 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 88 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for 89 * the HBA. X MUST also be a power of 2. 90 */ 91static int lpfc_debugfs_enable = 1; 92module_param(lpfc_debugfs_enable, int, S_IRUGO); 93MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); 94 95/* This MUST be a power of 2 */ 96static int lpfc_debugfs_max_disc_trc; 97module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); 98MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, 99 "Set debugfs discovery trace depth"); 100 101/* This MUST be a power of 2 */ 102static int lpfc_debugfs_max_slow_ring_trc; 103module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); 104MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, 105 "Set debugfs slow ring trace depth"); 106 107/* This MUST be a power of 2 */ 108static int lpfc_debugfs_max_nvmeio_trc; 109module_param(lpfc_debugfs_max_nvmeio_trc, int, 0444); 110MODULE_PARM_DESC(lpfc_debugfs_max_nvmeio_trc, 111 "Set debugfs NVME IO trace depth"); 112 113static int lpfc_debugfs_mask_disc_trc; 114module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); 115MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, 116 "Set debugfs discovery trace mask"); 117 118#include <linux/debugfs.h> 119 120static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); 121static unsigned long lpfc_debugfs_start_time = 0L; 122 123/* iDiag */ 124static struct lpfc_idiag idiag; 125 126/** 127 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer 128 * @vport: The vport to gather the log info from. 129 * @buf: The buffer to dump log into. 130 * @size: The maximum amount of data to process. 131 * 132 * Description: 133 * This routine gathers the lpfc discovery debugfs data from the @vport and 134 * dumps it to @buf up to @size number of bytes. It will start at the next entry 135 * in the log and process the log until the end of the buffer. Then it will 136 * gather from the beginning of the log and process until the current entry. 137 * 138 * Notes: 139 * Discovery logging will be disabled while while this routine dumps the log. 140 * 141 * Return Value: 142 * This routine returns the amount of bytes that were dumped into @buf and will 143 * not exceed @size. 144 **/ 145static int 146lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) 147{ 148 int i, index, len, enable; 149 uint32_t ms; 150 struct lpfc_debugfs_trc *dtp; 151 char *buffer; 152 153 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 154 if (!buffer) 155 return 0; 156 157 enable = lpfc_debugfs_enable; 158 lpfc_debugfs_enable = 0; 159 160 len = 0; 161 index = (atomic_read(&vport->disc_trc_cnt) + 1) & 162 (lpfc_debugfs_max_disc_trc - 1); 163 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { 164 dtp = vport->disc_trc + i; 165 if (!dtp->fmt) 166 continue; 167 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 168 snprintf(buffer, 169 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 170 dtp->seq_cnt, ms, dtp->fmt); 171 len += scnprintf(buf+len, size-len, buffer, 172 dtp->data1, dtp->data2, dtp->data3); 173 } 174 for (i = 0; i < index; i++) { 175 dtp = vport->disc_trc + i; 176 if (!dtp->fmt) 177 continue; 178 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 179 snprintf(buffer, 180 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 181 dtp->seq_cnt, ms, dtp->fmt); 182 len += scnprintf(buf+len, size-len, buffer, 183 dtp->data1, dtp->data2, dtp->data3); 184 } 185 186 lpfc_debugfs_enable = enable; 187 kfree(buffer); 188 189 return len; 190} 191 192/** 193 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer 194 * @phba: The HBA to gather the log info from. 195 * @buf: The buffer to dump log into. 196 * @size: The maximum amount of data to process. 197 * 198 * Description: 199 * This routine gathers the lpfc slow ring debugfs data from the @phba and 200 * dumps it to @buf up to @size number of bytes. It will start at the next entry 201 * in the log and process the log until the end of the buffer. Then it will 202 * gather from the beginning of the log and process until the current entry. 203 * 204 * Notes: 205 * Slow ring logging will be disabled while while this routine dumps the log. 206 * 207 * Return Value: 208 * This routine returns the amount of bytes that were dumped into @buf and will 209 * not exceed @size. 210 **/ 211static int 212lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) 213{ 214 int i, index, len, enable; 215 uint32_t ms; 216 struct lpfc_debugfs_trc *dtp; 217 char *buffer; 218 219 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 220 if (!buffer) 221 return 0; 222 223 enable = lpfc_debugfs_enable; 224 lpfc_debugfs_enable = 0; 225 226 len = 0; 227 index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & 228 (lpfc_debugfs_max_slow_ring_trc - 1); 229 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { 230 dtp = phba->slow_ring_trc + i; 231 if (!dtp->fmt) 232 continue; 233 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 234 snprintf(buffer, 235 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 236 dtp->seq_cnt, ms, dtp->fmt); 237 len += scnprintf(buf+len, size-len, buffer, 238 dtp->data1, dtp->data2, dtp->data3); 239 } 240 for (i = 0; i < index; i++) { 241 dtp = phba->slow_ring_trc + i; 242 if (!dtp->fmt) 243 continue; 244 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 245 snprintf(buffer, 246 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 247 dtp->seq_cnt, ms, dtp->fmt); 248 len += scnprintf(buf+len, size-len, buffer, 249 dtp->data1, dtp->data2, dtp->data3); 250 } 251 252 lpfc_debugfs_enable = enable; 253 kfree(buffer); 254 255 return len; 256} 257 258static int lpfc_debugfs_last_hbq = -1; 259 260/** 261 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer 262 * @phba: The HBA to gather host buffer info from. 263 * @buf: The buffer to dump log into. 264 * @size: The maximum amount of data to process. 265 * 266 * Description: 267 * This routine dumps the host buffer queue info from the @phba to @buf up to 268 * @size number of bytes. A header that describes the current hbq state will be 269 * dumped to @buf first and then info on each hbq entry will be dumped to @buf 270 * until @size bytes have been dumped or all the hbq info has been dumped. 271 * 272 * Notes: 273 * This routine will rotate through each configured HBQ each time called. 274 * 275 * Return Value: 276 * This routine returns the amount of bytes that were dumped into @buf and will 277 * not exceed @size. 278 **/ 279static int 280lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) 281{ 282 int len = 0; 283 int i, j, found, posted, low; 284 uint32_t phys, raw_index, getidx; 285 struct lpfc_hbq_init *hip; 286 struct hbq_s *hbqs; 287 struct lpfc_hbq_entry *hbqe; 288 struct lpfc_dmabuf *d_buf; 289 struct hbq_dmabuf *hbq_buf; 290 291 if (phba->sli_rev != 3) 292 return 0; 293 294 spin_lock_irq(&phba->hbalock); 295 296 /* toggle between multiple hbqs, if any */ 297 i = lpfc_sli_hbq_count(); 298 if (i > 1) { 299 lpfc_debugfs_last_hbq++; 300 if (lpfc_debugfs_last_hbq >= i) 301 lpfc_debugfs_last_hbq = 0; 302 } 303 else 304 lpfc_debugfs_last_hbq = 0; 305 306 i = lpfc_debugfs_last_hbq; 307 308 len += scnprintf(buf+len, size-len, "HBQ %d Info\n", i); 309 310 hbqs = &phba->hbqs[i]; 311 posted = 0; 312 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) 313 posted++; 314 315 hip = lpfc_hbq_defs[i]; 316 len += scnprintf(buf+len, size-len, 317 "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", 318 hip->hbq_index, hip->profile, hip->rn, 319 hip->buffer_count, hip->init_count, hip->add_count, posted); 320 321 raw_index = phba->hbq_get[i]; 322 getidx = le32_to_cpu(raw_index); 323 len += scnprintf(buf+len, size-len, 324 "entries:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", 325 hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, 326 hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); 327 328 hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; 329 for (j=0; j<hbqs->entry_count; j++) { 330 len += scnprintf(buf+len, size-len, 331 "%03d: %08x %04x %05x ", j, 332 le32_to_cpu(hbqe->bde.addrLow), 333 le32_to_cpu(hbqe->bde.tus.w), 334 le32_to_cpu(hbqe->buffer_tag)); 335 i = 0; 336 found = 0; 337 338 /* First calculate if slot has an associated posted buffer */ 339 low = hbqs->hbqPutIdx - posted; 340 if (low >= 0) { 341 if ((j >= hbqs->hbqPutIdx) || (j < low)) { 342 len += scnprintf(buf + len, size - len, 343 "Unused\n"); 344 goto skipit; 345 } 346 } 347 else { 348 if ((j >= hbqs->hbqPutIdx) && 349 (j < (hbqs->entry_count+low))) { 350 len += scnprintf(buf + len, size - len, 351 "Unused\n"); 352 goto skipit; 353 } 354 } 355 356 /* Get the Buffer info for the posted buffer */ 357 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { 358 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); 359 phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); 360 if (phys == le32_to_cpu(hbqe->bde.addrLow)) { 361 len += scnprintf(buf+len, size-len, 362 "Buf%d: x%px %06x\n", i, 363 hbq_buf->dbuf.virt, hbq_buf->tag); 364 found = 1; 365 break; 366 } 367 i++; 368 } 369 if (!found) { 370 len += scnprintf(buf+len, size-len, "No DMAinfo?\n"); 371 } 372skipit: 373 hbqe++; 374 if (len > LPFC_HBQINFO_SIZE - 54) 375 break; 376 } 377 spin_unlock_irq(&phba->hbalock); 378 return len; 379} 380 381static int lpfc_debugfs_last_xripool; 382 383/** 384 * lpfc_debugfs_commonxripools_data - Dump Hardware Queue info to a buffer 385 * @phba: The HBA to gather host buffer info from. 386 * @buf: The buffer to dump log into. 387 * @size: The maximum amount of data to process. 388 * 389 * Description: 390 * This routine dumps the Hardware Queue info from the @phba to @buf up to 391 * @size number of bytes. A header that describes the current hdwq state will be 392 * dumped to @buf first and then info on each hdwq entry will be dumped to @buf 393 * until @size bytes have been dumped or all the hdwq info has been dumped. 394 * 395 * Notes: 396 * This routine will rotate through each configured Hardware Queue each 397 * time called. 398 * 399 * Return Value: 400 * This routine returns the amount of bytes that were dumped into @buf and will 401 * not exceed @size. 402 **/ 403static int 404lpfc_debugfs_commonxripools_data(struct lpfc_hba *phba, char *buf, int size) 405{ 406 struct lpfc_sli4_hdw_queue *qp; 407 int len = 0; 408 int i, out; 409 unsigned long iflag; 410 411 for (i = 0; i < phba->cfg_hdw_queue; i++) { 412 if (len > (LPFC_DUMP_MULTIXRIPOOL_SIZE - 80)) 413 break; 414 qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_xripool]; 415 416 len += scnprintf(buf + len, size - len, "HdwQ %d Info ", i); 417 spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag); 418 spin_lock(&qp->io_buf_list_get_lock); 419 spin_lock(&qp->io_buf_list_put_lock); 420 out = qp->total_io_bufs - (qp->get_io_bufs + qp->put_io_bufs + 421 qp->abts_scsi_io_bufs + qp->abts_nvme_io_bufs); 422 len += scnprintf(buf + len, size - len, 423 "tot:%d get:%d put:%d mt:%d " 424 "ABTS scsi:%d nvme:%d Out:%d\n", 425 qp->total_io_bufs, qp->get_io_bufs, qp->put_io_bufs, 426 qp->empty_io_bufs, qp->abts_scsi_io_bufs, 427 qp->abts_nvme_io_bufs, out); 428 spin_unlock(&qp->io_buf_list_put_lock); 429 spin_unlock(&qp->io_buf_list_get_lock); 430 spin_unlock_irqrestore(&qp->abts_io_buf_list_lock, iflag); 431 432 lpfc_debugfs_last_xripool++; 433 if (lpfc_debugfs_last_xripool >= phba->cfg_hdw_queue) 434 lpfc_debugfs_last_xripool = 0; 435 } 436 437 return len; 438} 439 440/** 441 * lpfc_debugfs_multixripools_data - Display multi-XRI pools information 442 * @phba: The HBA to gather host buffer info from. 443 * @buf: The buffer to dump log into. 444 * @size: The maximum amount of data to process. 445 * 446 * Description: 447 * This routine displays current multi-XRI pools information including XRI 448 * count in public, private and txcmplq. It also displays current high and 449 * low watermark. 450 * 451 * Return Value: 452 * This routine returns the amount of bytes that were dumped into @buf and will 453 * not exceed @size. 454 **/ 455static int 456lpfc_debugfs_multixripools_data(struct lpfc_hba *phba, char *buf, int size) 457{ 458 u32 i; 459 u32 hwq_count; 460 struct lpfc_sli4_hdw_queue *qp; 461 struct lpfc_multixri_pool *multixri_pool; 462 struct lpfc_pvt_pool *pvt_pool; 463 struct lpfc_pbl_pool *pbl_pool; 464 u32 txcmplq_cnt; 465 char tmp[LPFC_DEBUG_OUT_LINE_SZ] = {0}; 466 467 if (phba->sli_rev != LPFC_SLI_REV4) 468 return 0; 469 470 if (!phba->sli4_hba.hdwq) 471 return 0; 472 473 if (!phba->cfg_xri_rebalancing) { 474 i = lpfc_debugfs_commonxripools_data(phba, buf, size); 475 return i; 476 } 477 478 /* 479 * Pbl: Current number of free XRIs in public pool 480 * Pvt: Current number of free XRIs in private pool 481 * Busy: Current number of outstanding XRIs 482 * HWM: Current high watermark 483 * pvt_empty: Incremented by 1 when IO submission fails (no xri) 484 * pbl_empty: Incremented by 1 when all pbl_pool are empty during 485 * IO submission 486 */ 487 scnprintf(tmp, sizeof(tmp), 488 "HWQ: Pbl Pvt Busy HWM | pvt_empty pbl_empty "); 489 if (strlcat(buf, tmp, size) >= size) 490 return strnlen(buf, size); 491 492#ifdef LPFC_MXP_STAT 493 /* 494 * MAXH: Max high watermark seen so far 495 * above_lmt: Incremented by 1 if xri_owned > xri_limit during 496 * IO submission 497 * below_lmt: Incremented by 1 if xri_owned <= xri_limit during 498 * IO submission 499 * locPbl_hit: Incremented by 1 if successfully get a batch of XRI from 500 * local pbl_pool 501 * othPbl_hit: Incremented by 1 if successfully get a batch of XRI from 502 * other pbl_pool 503 */ 504 scnprintf(tmp, sizeof(tmp), 505 "MAXH above_lmt below_lmt locPbl_hit othPbl_hit"); 506 if (strlcat(buf, tmp, size) >= size) 507 return strnlen(buf, size); 508 509 /* 510 * sPbl: snapshot of Pbl 15 sec after stat gets cleared 511 * sPvt: snapshot of Pvt 15 sec after stat gets cleared 512 * sBusy: snapshot of Busy 15 sec after stat gets cleared 513 */ 514 scnprintf(tmp, sizeof(tmp), 515 " | sPbl sPvt sBusy"); 516 if (strlcat(buf, tmp, size) >= size) 517 return strnlen(buf, size); 518#endif 519 520 scnprintf(tmp, sizeof(tmp), "\n"); 521 if (strlcat(buf, tmp, size) >= size) 522 return strnlen(buf, size); 523 524 hwq_count = phba->cfg_hdw_queue; 525 for (i = 0; i < hwq_count; i++) { 526 qp = &phba->sli4_hba.hdwq[i]; 527 multixri_pool = qp->p_multixri_pool; 528 if (!multixri_pool) 529 continue; 530 pbl_pool = &multixri_pool->pbl_pool; 531 pvt_pool = &multixri_pool->pvt_pool; 532 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt; 533 534 scnprintf(tmp, sizeof(tmp), 535 "%03d: %4d %4d %4d %4d | %10d %10d ", 536 i, pbl_pool->count, pvt_pool->count, 537 txcmplq_cnt, pvt_pool->high_watermark, 538 qp->empty_io_bufs, multixri_pool->pbl_empty_count); 539 if (strlcat(buf, tmp, size) >= size) 540 break; 541 542#ifdef LPFC_MXP_STAT 543 scnprintf(tmp, sizeof(tmp), 544 "%4d %10d %10d %10d %10d", 545 multixri_pool->stat_max_hwm, 546 multixri_pool->above_limit_count, 547 multixri_pool->below_limit_count, 548 multixri_pool->local_pbl_hit_count, 549 multixri_pool->other_pbl_hit_count); 550 if (strlcat(buf, tmp, size) >= size) 551 break; 552 553 scnprintf(tmp, sizeof(tmp), 554 " | %4d %4d %5d", 555 multixri_pool->stat_pbl_count, 556 multixri_pool->stat_pvt_count, 557 multixri_pool->stat_busy_count); 558 if (strlcat(buf, tmp, size) >= size) 559 break; 560#endif 561 562 scnprintf(tmp, sizeof(tmp), "\n"); 563 if (strlcat(buf, tmp, size) >= size) 564 break; 565 } 566 return strnlen(buf, size); 567} 568 569 570#ifdef LPFC_HDWQ_LOCK_STAT 571static int lpfc_debugfs_last_lock; 572 573/** 574 * lpfc_debugfs_lockstat_data - Dump Hardware Queue info to a buffer 575 * @phba: The HBA to gather host buffer info from. 576 * @buf: The buffer to dump log into. 577 * @size: The maximum amount of data to process. 578 * 579 * Description: 580 * This routine dumps the Hardware Queue info from the @phba to @buf up to 581 * @size number of bytes. A header that describes the current hdwq state will be 582 * dumped to @buf first and then info on each hdwq entry will be dumped to @buf 583 * until @size bytes have been dumped or all the hdwq info has been dumped. 584 * 585 * Notes: 586 * This routine will rotate through each configured Hardware Queue each 587 * time called. 588 * 589 * Return Value: 590 * This routine returns the amount of bytes that were dumped into @buf and will 591 * not exceed @size. 592 **/ 593static int 594lpfc_debugfs_lockstat_data(struct lpfc_hba *phba, char *buf, int size) 595{ 596 struct lpfc_sli4_hdw_queue *qp; 597 int len = 0; 598 int i; 599 600 if (phba->sli_rev != LPFC_SLI_REV4) 601 return 0; 602 603 if (!phba->sli4_hba.hdwq) 604 return 0; 605 606 for (i = 0; i < phba->cfg_hdw_queue; i++) { 607 if (len > (LPFC_HDWQINFO_SIZE - 100)) 608 break; 609 qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_lock]; 610 611 len += scnprintf(buf + len, size - len, "HdwQ %03d Lock ", i); 612 if (phba->cfg_xri_rebalancing) { 613 len += scnprintf(buf + len, size - len, 614 "get_pvt:%d mv_pvt:%d " 615 "mv2pub:%d mv2pvt:%d " 616 "put_pvt:%d put_pub:%d wq:%d\n", 617 qp->lock_conflict.alloc_pvt_pool, 618 qp->lock_conflict.mv_from_pvt_pool, 619 qp->lock_conflict.mv_to_pub_pool, 620 qp->lock_conflict.mv_to_pvt_pool, 621 qp->lock_conflict.free_pvt_pool, 622 qp->lock_conflict.free_pub_pool, 623 qp->lock_conflict.wq_access); 624 } else { 625 len += scnprintf(buf + len, size - len, 626 "get:%d put:%d free:%d wq:%d\n", 627 qp->lock_conflict.alloc_xri_get, 628 qp->lock_conflict.alloc_xri_put, 629 qp->lock_conflict.free_xri, 630 qp->lock_conflict.wq_access); 631 } 632 633 lpfc_debugfs_last_lock++; 634 if (lpfc_debugfs_last_lock >= phba->cfg_hdw_queue) 635 lpfc_debugfs_last_lock = 0; 636 } 637 638 return len; 639} 640#endif 641 642static int lpfc_debugfs_last_hba_slim_off; 643 644/** 645 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer 646 * @phba: The HBA to gather SLIM info from. 647 * @buf: The buffer to dump log into. 648 * @size: The maximum amount of data to process. 649 * 650 * Description: 651 * This routine dumps the current contents of HBA SLIM for the HBA associated 652 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. 653 * 654 * Notes: 655 * This routine will only dump up to 1024 bytes of data each time called and 656 * should be called multiple times to dump the entire HBA SLIM. 657 * 658 * Return Value: 659 * This routine returns the amount of bytes that were dumped into @buf and will 660 * not exceed @size. 661 **/ 662static int 663lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) 664{ 665 int len = 0; 666 int i, off; 667 uint32_t *ptr; 668 char *buffer; 669 670 buffer = kmalloc(1024, GFP_KERNEL); 671 if (!buffer) 672 return 0; 673 674 off = 0; 675 spin_lock_irq(&phba->hbalock); 676 677 len += scnprintf(buf+len, size-len, "HBA SLIM\n"); 678 lpfc_memcpy_from_slim(buffer, 679 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); 680 681 ptr = (uint32_t *)&buffer[0]; 682 off = lpfc_debugfs_last_hba_slim_off; 683 684 /* Set it up for the next time */ 685 lpfc_debugfs_last_hba_slim_off += 1024; 686 if (lpfc_debugfs_last_hba_slim_off >= 4096) 687 lpfc_debugfs_last_hba_slim_off = 0; 688 689 i = 1024; 690 while (i > 0) { 691 len += scnprintf(buf+len, size-len, 692 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 693 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 694 *(ptr+5), *(ptr+6), *(ptr+7)); 695 ptr += 8; 696 i -= (8 * sizeof(uint32_t)); 697 off += (8 * sizeof(uint32_t)); 698 } 699 700 spin_unlock_irq(&phba->hbalock); 701 kfree(buffer); 702 703 return len; 704} 705 706/** 707 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer 708 * @phba: The HBA to gather Host SLIM info from. 709 * @buf: The buffer to dump log into. 710 * @size: The maximum amount of data to process. 711 * 712 * Description: 713 * This routine dumps the current contents of host SLIM for the host associated 714 * with @phba to @buf up to @size bytes of data. The dump will contain the 715 * Mailbox, PCB, Rings, and Registers that are located in host memory. 716 * 717 * Return Value: 718 * This routine returns the amount of bytes that were dumped into @buf and will 719 * not exceed @size. 720 **/ 721static int 722lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) 723{ 724 int len = 0; 725 int i, off; 726 uint32_t word0, word1, word2, word3; 727 uint32_t *ptr; 728 struct lpfc_pgp *pgpp; 729 struct lpfc_sli *psli = &phba->sli; 730 struct lpfc_sli_ring *pring; 731 732 off = 0; 733 spin_lock_irq(&phba->hbalock); 734 735 len += scnprintf(buf+len, size-len, "SLIM Mailbox\n"); 736 ptr = (uint32_t *)phba->slim2p.virt; 737 i = sizeof(MAILBOX_t); 738 while (i > 0) { 739 len += scnprintf(buf+len, size-len, 740 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 741 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 742 *(ptr+5), *(ptr+6), *(ptr+7)); 743 ptr += 8; 744 i -= (8 * sizeof(uint32_t)); 745 off += (8 * sizeof(uint32_t)); 746 } 747 748 len += scnprintf(buf+len, size-len, "SLIM PCB\n"); 749 ptr = (uint32_t *)phba->pcb; 750 i = sizeof(PCB_t); 751 while (i > 0) { 752 len += scnprintf(buf+len, size-len, 753 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 754 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 755 *(ptr+5), *(ptr+6), *(ptr+7)); 756 ptr += 8; 757 i -= (8 * sizeof(uint32_t)); 758 off += (8 * sizeof(uint32_t)); 759 } 760 761 if (phba->sli_rev <= LPFC_SLI_REV3) { 762 for (i = 0; i < 4; i++) { 763 pgpp = &phba->port_gp[i]; 764 pring = &psli->sli3_ring[i]; 765 len += scnprintf(buf+len, size-len, 766 "Ring %d: CMD GetInx:%d " 767 "(Max:%d Next:%d " 768 "Local:%d flg:x%x) " 769 "RSP PutInx:%d Max:%d\n", 770 i, pgpp->cmdGetInx, 771 pring->sli.sli3.numCiocb, 772 pring->sli.sli3.next_cmdidx, 773 pring->sli.sli3.local_getidx, 774 pring->flag, pgpp->rspPutInx, 775 pring->sli.sli3.numRiocb); 776 } 777 778 word0 = readl(phba->HAregaddr); 779 word1 = readl(phba->CAregaddr); 780 word2 = readl(phba->HSregaddr); 781 word3 = readl(phba->HCregaddr); 782 len += scnprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " 783 "HC:%08x\n", word0, word1, word2, word3); 784 } 785 spin_unlock_irq(&phba->hbalock); 786 return len; 787} 788 789/** 790 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer 791 * @vport: The vport to gather target node info from. 792 * @buf: The buffer to dump log into. 793 * @size: The maximum amount of data to process. 794 * 795 * Description: 796 * This routine dumps the current target node list associated with @vport to 797 * @buf up to @size bytes of data. Each node entry in the dump will contain a 798 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. 799 * 800 * Return Value: 801 * This routine returns the amount of bytes that were dumped into @buf and will 802 * not exceed @size. 803 **/ 804static int 805lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) 806{ 807 int len = 0; 808 int i, iocnt, outio, cnt; 809 struct lpfc_hba *phba = vport->phba; 810 struct lpfc_nodelist *ndlp; 811 unsigned char *statep; 812 unsigned long iflags; 813 struct nvme_fc_local_port *localport; 814 struct nvme_fc_remote_port *nrport = NULL; 815 struct lpfc_nvme_rport *rport; 816 817 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); 818 outio = 0; 819 820 len += scnprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n"); 821 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 822 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 823 iocnt = 0; 824 if (!cnt) { 825 len += scnprintf(buf+len, size-len, 826 "Missing Nodelist Entries\n"); 827 break; 828 } 829 cnt--; 830 switch (ndlp->nlp_state) { 831 case NLP_STE_UNUSED_NODE: 832 statep = "UNUSED"; 833 break; 834 case NLP_STE_PLOGI_ISSUE: 835 statep = "PLOGI "; 836 break; 837 case NLP_STE_ADISC_ISSUE: 838 statep = "ADISC "; 839 break; 840 case NLP_STE_REG_LOGIN_ISSUE: 841 statep = "REGLOG"; 842 break; 843 case NLP_STE_PRLI_ISSUE: 844 statep = "PRLI "; 845 break; 846 case NLP_STE_LOGO_ISSUE: 847 statep = "LOGO "; 848 break; 849 case NLP_STE_UNMAPPED_NODE: 850 statep = "UNMAP "; 851 iocnt = 1; 852 break; 853 case NLP_STE_MAPPED_NODE: 854 statep = "MAPPED"; 855 iocnt = 1; 856 break; 857 case NLP_STE_NPR_NODE: 858 statep = "NPR "; 859 break; 860 default: 861 statep = "UNKNOWN"; 862 } 863 len += scnprintf(buf+len, size-len, "%s DID:x%06x ", 864 statep, ndlp->nlp_DID); 865 len += scnprintf(buf+len, size-len, 866 "WWPN x%016llx ", 867 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 868 len += scnprintf(buf+len, size-len, 869 "WWNN x%016llx ", 870 wwn_to_u64(ndlp->nlp_nodename.u.wwn)); 871 len += scnprintf(buf+len, size-len, "RPI:x%04x ", 872 ndlp->nlp_rpi); 873 len += scnprintf(buf+len, size-len, "flag:x%08lx ", 874 ndlp->nlp_flag); 875 if (!ndlp->nlp_type) 876 len += scnprintf(buf+len, size-len, "UNKNOWN_TYPE "); 877 if (ndlp->nlp_type & NLP_FC_NODE) 878 len += scnprintf(buf+len, size-len, "FC_NODE "); 879 if (ndlp->nlp_type & NLP_FABRIC) { 880 len += scnprintf(buf+len, size-len, "FABRIC "); 881 iocnt = 0; 882 } 883 if (ndlp->nlp_type & NLP_FCP_TARGET) 884 len += scnprintf(buf+len, size-len, "FCP_TGT sid:%d ", 885 ndlp->nlp_sid); 886 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 887 len += scnprintf(buf+len, size-len, "FCP_INITIATOR "); 888 if (ndlp->nlp_type & NLP_NVME_TARGET) 889 len += scnprintf(buf + len, 890 size - len, "NVME_TGT sid:%d ", 891 NLP_NO_SID); 892 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 893 len += scnprintf(buf + len, 894 size - len, "NVME_INITIATOR "); 895 len += scnprintf(buf+len, size-len, "refcnt:%d", 896 kref_read(&ndlp->kref)); 897 if (iocnt) { 898 i = atomic_read(&ndlp->cmd_pending); 899 len += scnprintf(buf + len, size - len, 900 " OutIO:x%x Qdepth x%x", 901 i, ndlp->cmd_qdepth); 902 outio += i; 903 } 904 len += scnprintf(buf+len, size-len, " xpt:x%x", 905 ndlp->fc4_xpt_flags); 906 if (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING) 907 len += scnprintf(buf+len, size-len, " defer:%x", 908 ndlp->nlp_defer_did); 909 len += scnprintf(buf+len, size-len, "\n"); 910 } 911 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 912 913 len += scnprintf(buf + len, size - len, 914 "\nOutstanding IO x%x\n", outio); 915 916 if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) { 917 len += scnprintf(buf + len, size - len, 918 "\nNVME Targetport Entry ...\n"); 919 920 /* Port state is only one of two values for now. */ 921 if (phba->targetport->port_id) 922 statep = "REGISTERED"; 923 else 924 statep = "INIT"; 925 len += scnprintf(buf + len, size - len, 926 "TGT WWNN x%llx WWPN x%llx State %s\n", 927 wwn_to_u64(vport->fc_nodename.u.wwn), 928 wwn_to_u64(vport->fc_portname.u.wwn), 929 statep); 930 len += scnprintf(buf + len, size - len, 931 " Targetport DID x%06x\n", 932 phba->targetport->port_id); 933 goto out_exit; 934 } 935 936 len += scnprintf(buf + len, size - len, 937 "\nNVME Lport/Rport Entries ...\n"); 938 939 localport = vport->localport; 940 if (!localport) 941 goto out_exit; 942 943 /* Port state is only one of two values for now. */ 944 if (localport->port_id) 945 statep = "ONLINE"; 946 else 947 statep = "UNKNOWN "; 948 949 len += scnprintf(buf + len, size - len, 950 "Lport DID x%06x PortState %s\n", 951 localport->port_id, statep); 952 953 len += scnprintf(buf + len, size - len, "\tRport List:\n"); 954 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 955 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 956 /* local short-hand pointer. */ 957 spin_lock(&ndlp->lock); 958 rport = lpfc_ndlp_get_nrport(ndlp); 959 if (rport) 960 nrport = rport->remoteport; 961 else 962 nrport = NULL; 963 spin_unlock(&ndlp->lock); 964 if (!nrport) 965 continue; 966 967 /* Port state is only one of two values for now. */ 968 switch (nrport->port_state) { 969 case FC_OBJSTATE_ONLINE: 970 statep = "ONLINE"; 971 break; 972 case FC_OBJSTATE_UNKNOWN: 973 statep = "UNKNOWN "; 974 break; 975 default: 976 statep = "UNSUPPORTED"; 977 break; 978 } 979 980 /* Tab in to show lport ownership. */ 981 len += scnprintf(buf + len, size - len, 982 "\t%s Port ID:x%06x ", 983 statep, nrport->port_id); 984 len += scnprintf(buf + len, size - len, "WWPN x%llx ", 985 nrport->port_name); 986 len += scnprintf(buf + len, size - len, "WWNN x%llx ", 987 nrport->node_name); 988 989 /* An NVME rport can have multiple roles. */ 990 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) 991 len += scnprintf(buf + len, size - len, 992 "INITIATOR "); 993 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) 994 len += scnprintf(buf + len, size - len, 995 "TARGET "); 996 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) 997 len += scnprintf(buf + len, size - len, 998 "DISCSRVC "); 999 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 1000 FC_PORT_ROLE_NVME_TARGET | 1001 FC_PORT_ROLE_NVME_DISCOVERY)) 1002 len += scnprintf(buf + len, size - len, 1003 "UNKNOWN ROLE x%x", 1004 nrport->port_role); 1005 /* Terminate the string. */ 1006 len += scnprintf(buf + len, size - len, "\n"); 1007 } 1008 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 1009 out_exit: 1010 return len; 1011} 1012 1013/** 1014 * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer 1015 * @vport: The vport to gather target node info from. 1016 * @buf: The buffer to dump log into. 1017 * @size: The maximum amount of data to process. 1018 * 1019 * Description: 1020 * This routine dumps the NVME statistics associated with @vport 1021 * 1022 * Return Value: 1023 * This routine returns the amount of bytes that were dumped into @buf and will 1024 * not exceed @size. 1025 **/ 1026static int 1027lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size) 1028{ 1029 struct lpfc_hba *phba = vport->phba; 1030 struct lpfc_nvmet_tgtport *tgtp; 1031 struct lpfc_async_xchg_ctx *ctxp, *next_ctxp; 1032 struct nvme_fc_local_port *localport; 1033 struct lpfc_fc4_ctrl_stat *cstat; 1034 struct lpfc_nvme_lport *lport; 1035 uint64_t data1, data2, data3; 1036 uint64_t tot, totin, totout; 1037 int cnt, i; 1038 int len = 0; 1039 1040 if (phba->nvmet_support) { 1041 if (!phba->targetport) 1042 return len; 1043 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 1044 len += scnprintf(buf + len, size - len, 1045 "\nNVME Targetport Statistics\n"); 1046 1047 len += scnprintf(buf + len, size - len, 1048 "LS: Rcv %08x Drop %08x Abort %08x\n", 1049 atomic_read(&tgtp->rcv_ls_req_in), 1050 atomic_read(&tgtp->rcv_ls_req_drop), 1051 atomic_read(&tgtp->xmt_ls_abort)); 1052 if (atomic_read(&tgtp->rcv_ls_req_in) != 1053 atomic_read(&tgtp->rcv_ls_req_out)) { 1054 len += scnprintf(buf + len, size - len, 1055 "Rcv LS: in %08x != out %08x\n", 1056 atomic_read(&tgtp->rcv_ls_req_in), 1057 atomic_read(&tgtp->rcv_ls_req_out)); 1058 } 1059 1060 len += scnprintf(buf + len, size - len, 1061 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 1062 atomic_read(&tgtp->xmt_ls_rsp), 1063 atomic_read(&tgtp->xmt_ls_drop), 1064 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 1065 1066 len += scnprintf(buf + len, size - len, 1067 "LS: RSP Abort %08x xb %08x Err %08x\n", 1068 atomic_read(&tgtp->xmt_ls_rsp_aborted), 1069 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 1070 atomic_read(&tgtp->xmt_ls_rsp_error)); 1071 1072 len += scnprintf(buf + len, size - len, 1073 "FCP: Rcv %08x Defer %08x Release %08x " 1074 "Drop %08x\n", 1075 atomic_read(&tgtp->rcv_fcp_cmd_in), 1076 atomic_read(&tgtp->rcv_fcp_cmd_defer), 1077 atomic_read(&tgtp->xmt_fcp_release), 1078 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 1079 1080 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 1081 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 1082 len += scnprintf(buf + len, size - len, 1083 "Rcv FCP: in %08x != out %08x\n", 1084 atomic_read(&tgtp->rcv_fcp_cmd_in), 1085 atomic_read(&tgtp->rcv_fcp_cmd_out)); 1086 } 1087 1088 len += scnprintf(buf + len, size - len, 1089 "FCP Rsp: read %08x readrsp %08x " 1090 "write %08x rsp %08x\n", 1091 atomic_read(&tgtp->xmt_fcp_read), 1092 atomic_read(&tgtp->xmt_fcp_read_rsp), 1093 atomic_read(&tgtp->xmt_fcp_write), 1094 atomic_read(&tgtp->xmt_fcp_rsp)); 1095 1096 len += scnprintf(buf + len, size - len, 1097 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 1098 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 1099 atomic_read(&tgtp->xmt_fcp_rsp_error), 1100 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 1101 1102 len += scnprintf(buf + len, size - len, 1103 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 1104 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 1105 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 1106 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 1107 1108 len += scnprintf(buf + len, size - len, 1109 "ABORT: Xmt %08x Cmpl %08x\n", 1110 atomic_read(&tgtp->xmt_fcp_abort), 1111 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 1112 1113 len += scnprintf(buf + len, size - len, 1114 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x", 1115 atomic_read(&tgtp->xmt_abort_sol), 1116 atomic_read(&tgtp->xmt_abort_unsol), 1117 atomic_read(&tgtp->xmt_abort_rsp), 1118 atomic_read(&tgtp->xmt_abort_rsp_error)); 1119 1120 len += scnprintf(buf + len, size - len, "\n"); 1121 1122 cnt = 0; 1123 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1124 list_for_each_entry_safe(ctxp, next_ctxp, 1125 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1126 list) { 1127 cnt++; 1128 } 1129 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1130 if (cnt) { 1131 len += scnprintf(buf + len, size - len, 1132 "ABORT: %d ctx entries\n", cnt); 1133 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1134 list_for_each_entry_safe(ctxp, next_ctxp, 1135 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1136 list) { 1137 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) 1138 break; 1139 len += scnprintf(buf + len, size - len, 1140 "Entry: oxid %x state %x " 1141 "flag %x\n", 1142 ctxp->oxid, ctxp->state, 1143 ctxp->flag); 1144 } 1145 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1146 } 1147 1148 /* Calculate outstanding IOs */ 1149 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 1150 tot += atomic_read(&tgtp->xmt_fcp_release); 1151 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 1152 1153 len += scnprintf(buf + len, size - len, 1154 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 1155 "CTX Outstanding %08llx\n", 1156 phba->sli4_hba.nvmet_xri_cnt, 1157 phba->sli4_hba.nvmet_io_wait_cnt, 1158 phba->sli4_hba.nvmet_io_wait_total, 1159 tot); 1160 } else { 1161 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 1162 return len; 1163 1164 localport = vport->localport; 1165 if (!localport) 1166 return len; 1167 lport = (struct lpfc_nvme_lport *)localport->private; 1168 if (!lport) 1169 return len; 1170 1171 len += scnprintf(buf + len, size - len, 1172 "\nNVME HDWQ Statistics\n"); 1173 1174 len += scnprintf(buf + len, size - len, 1175 "LS: Xmt %016x Cmpl %016x\n", 1176 atomic_read(&lport->fc4NvmeLsRequests), 1177 atomic_read(&lport->fc4NvmeLsCmpls)); 1178 1179 totin = 0; 1180 totout = 0; 1181 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1182 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 1183 tot = cstat->io_cmpls; 1184 totin += tot; 1185 data1 = cstat->input_requests; 1186 data2 = cstat->output_requests; 1187 data3 = cstat->control_requests; 1188 totout += (data1 + data2 + data3); 1189 1190 /* Limit to 32, debugfs display buffer limitation */ 1191 if (i >= 32) 1192 continue; 1193 1194 len += scnprintf(buf + len, PAGE_SIZE - len, 1195 "HDWQ (%d): Rd %016llx Wr %016llx " 1196 "IO %016llx ", 1197 i, data1, data2, data3); 1198 len += scnprintf(buf + len, PAGE_SIZE - len, 1199 "Cmpl %016llx OutIO %016llx\n", 1200 tot, ((data1 + data2 + data3) - tot)); 1201 } 1202 len += scnprintf(buf + len, PAGE_SIZE - len, 1203 "Total FCP Cmpl %016llx Issue %016llx " 1204 "OutIO %016llx\n", 1205 totin, totout, totout - totin); 1206 1207 len += scnprintf(buf + len, size - len, 1208 "LS Xmt Err: Abrt %08x Err %08x " 1209 "Cmpl Err: xb %08x Err %08x\n", 1210 atomic_read(&lport->xmt_ls_abort), 1211 atomic_read(&lport->xmt_ls_err), 1212 atomic_read(&lport->cmpl_ls_xb), 1213 atomic_read(&lport->cmpl_ls_err)); 1214 1215 len += scnprintf(buf + len, size - len, 1216 "FCP Xmt Err: noxri %06x nondlp %06x " 1217 "qdepth %06x wqerr %06x err %06x Abrt %06x\n", 1218 atomic_read(&lport->xmt_fcp_noxri), 1219 atomic_read(&lport->xmt_fcp_bad_ndlp), 1220 atomic_read(&lport->xmt_fcp_qdepth), 1221 atomic_read(&lport->xmt_fcp_wqerr), 1222 atomic_read(&lport->xmt_fcp_err), 1223 atomic_read(&lport->xmt_fcp_abort)); 1224 1225 len += scnprintf(buf + len, size - len, 1226 "FCP Cmpl Err: xb %08x Err %08x\n", 1227 atomic_read(&lport->cmpl_fcp_xb), 1228 atomic_read(&lport->cmpl_fcp_err)); 1229 1230 } 1231 1232 return len; 1233} 1234 1235/** 1236 * lpfc_debugfs_scsistat_data - Dump target node list to a buffer 1237 * @vport: The vport to gather target node info from. 1238 * @buf: The buffer to dump log into. 1239 * @size: The maximum amount of data to process. 1240 * 1241 * Description: 1242 * This routine dumps the SCSI statistics associated with @vport 1243 * 1244 * Return Value: 1245 * This routine returns the amount of bytes that were dumped into @buf and will 1246 * not exceed @size. 1247 **/ 1248static int 1249lpfc_debugfs_scsistat_data(struct lpfc_vport *vport, char *buf, int size) 1250{ 1251 int len; 1252 struct lpfc_hba *phba = vport->phba; 1253 struct lpfc_fc4_ctrl_stat *cstat; 1254 u64 data1, data2, data3; 1255 u64 tot, totin, totout; 1256 int i; 1257 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 1258 1259 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 1260 (phba->sli_rev != LPFC_SLI_REV4)) 1261 return 0; 1262 1263 scnprintf(buf, size, "SCSI HDWQ Statistics\n"); 1264 1265 totin = 0; 1266 totout = 0; 1267 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1268 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 1269 tot = cstat->io_cmpls; 1270 totin += tot; 1271 data1 = cstat->input_requests; 1272 data2 = cstat->output_requests; 1273 data3 = cstat->control_requests; 1274 totout += (data1 + data2 + data3); 1275 1276 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 1277 "IO %016llx ", i, data1, data2, data3); 1278 if (strlcat(buf, tmp, size) >= size) 1279 goto buffer_done; 1280 1281 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 1282 tot, ((data1 + data2 + data3) - tot)); 1283 if (strlcat(buf, tmp, size) >= size) 1284 goto buffer_done; 1285 } 1286 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 1287 "OutIO %016llx\n", totin, totout, totout - totin); 1288 strlcat(buf, tmp, size); 1289 1290buffer_done: 1291 len = strnlen(buf, size); 1292 1293 return len; 1294} 1295 1296void 1297lpfc_io_ktime(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) 1298{ 1299 uint64_t seg1, seg2, seg3, seg4; 1300 uint64_t segsum; 1301 1302 if (!lpfc_cmd->ts_last_cmd || 1303 !lpfc_cmd->ts_cmd_start || 1304 !lpfc_cmd->ts_cmd_wqput || 1305 !lpfc_cmd->ts_isr_cmpl || 1306 !lpfc_cmd->ts_data_io) 1307 return; 1308 1309 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_cmd_start) 1310 return; 1311 if (lpfc_cmd->ts_cmd_start < lpfc_cmd->ts_last_cmd) 1312 return; 1313 if (lpfc_cmd->ts_cmd_wqput < lpfc_cmd->ts_cmd_start) 1314 return; 1315 if (lpfc_cmd->ts_isr_cmpl < lpfc_cmd->ts_cmd_wqput) 1316 return; 1317 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_isr_cmpl) 1318 return; 1319 /* 1320 * Segment 1 - Time from Last FCP command cmpl is handed 1321 * off to NVME Layer to start of next command. 1322 * Segment 2 - Time from Driver receives a IO cmd start 1323 * from NVME Layer to WQ put is done on IO cmd. 1324 * Segment 3 - Time from Driver WQ put is done on IO cmd 1325 * to MSI-X ISR for IO cmpl. 1326 * Segment 4 - Time from MSI-X ISR for IO cmpl to when 1327 * cmpl is handled off to the NVME Layer. 1328 */ 1329 seg1 = lpfc_cmd->ts_cmd_start - lpfc_cmd->ts_last_cmd; 1330 if (seg1 > 5000000) /* 5 ms - for sequential IOs only */ 1331 seg1 = 0; 1332 1333 /* Calculate times relative to start of IO */ 1334 seg2 = (lpfc_cmd->ts_cmd_wqput - lpfc_cmd->ts_cmd_start); 1335 segsum = seg2; 1336 seg3 = lpfc_cmd->ts_isr_cmpl - lpfc_cmd->ts_cmd_start; 1337 if (segsum > seg3) 1338 return; 1339 seg3 -= segsum; 1340 segsum += seg3; 1341 1342 seg4 = lpfc_cmd->ts_data_io - lpfc_cmd->ts_cmd_start; 1343 if (segsum > seg4) 1344 return; 1345 seg4 -= segsum; 1346 1347 phba->ktime_data_samples++; 1348 phba->ktime_seg1_total += seg1; 1349 if (seg1 < phba->ktime_seg1_min) 1350 phba->ktime_seg1_min = seg1; 1351 else if (seg1 > phba->ktime_seg1_max) 1352 phba->ktime_seg1_max = seg1; 1353 phba->ktime_seg2_total += seg2; 1354 if (seg2 < phba->ktime_seg2_min) 1355 phba->ktime_seg2_min = seg2; 1356 else if (seg2 > phba->ktime_seg2_max) 1357 phba->ktime_seg2_max = seg2; 1358 phba->ktime_seg3_total += seg3; 1359 if (seg3 < phba->ktime_seg3_min) 1360 phba->ktime_seg3_min = seg3; 1361 else if (seg3 > phba->ktime_seg3_max) 1362 phba->ktime_seg3_max = seg3; 1363 phba->ktime_seg4_total += seg4; 1364 if (seg4 < phba->ktime_seg4_min) 1365 phba->ktime_seg4_min = seg4; 1366 else if (seg4 > phba->ktime_seg4_max) 1367 phba->ktime_seg4_max = seg4; 1368 1369 lpfc_cmd->ts_last_cmd = 0; 1370 lpfc_cmd->ts_cmd_start = 0; 1371 lpfc_cmd->ts_cmd_wqput = 0; 1372 lpfc_cmd->ts_isr_cmpl = 0; 1373 lpfc_cmd->ts_data_io = 0; 1374} 1375 1376/** 1377 * lpfc_debugfs_ioktime_data - Dump target node list to a buffer 1378 * @vport: The vport to gather target node info from. 1379 * @buf: The buffer to dump log into. 1380 * @size: The maximum amount of data to process. 1381 * 1382 * Description: 1383 * This routine dumps the NVME statistics associated with @vport 1384 * 1385 * Return Value: 1386 * This routine returns the amount of bytes that were dumped into @buf and will 1387 * not exceed @size. 1388 **/ 1389static int 1390lpfc_debugfs_ioktime_data(struct lpfc_vport *vport, char *buf, int size) 1391{ 1392 struct lpfc_hba *phba = vport->phba; 1393 int len = 0; 1394 1395 if (phba->nvmet_support == 0) { 1396 /* Initiator */ 1397 len += scnprintf(buf + len, PAGE_SIZE - len, 1398 "ktime %s: Total Samples: %lld\n", 1399 (phba->ktime_on ? "Enabled" : "Disabled"), 1400 phba->ktime_data_samples); 1401 if (phba->ktime_data_samples == 0) 1402 return len; 1403 1404 len += scnprintf( 1405 buf + len, PAGE_SIZE - len, 1406 "Segment 1: Last Cmd cmpl " 1407 "done -to- Start of next Cmd (in driver)\n"); 1408 len += scnprintf( 1409 buf + len, PAGE_SIZE - len, 1410 "avg:%08lld min:%08lld max %08lld\n", 1411 div_u64(phba->ktime_seg1_total, 1412 phba->ktime_data_samples), 1413 phba->ktime_seg1_min, 1414 phba->ktime_seg1_max); 1415 len += scnprintf( 1416 buf + len, PAGE_SIZE - len, 1417 "Segment 2: Driver start of Cmd " 1418 "-to- Firmware WQ doorbell\n"); 1419 len += scnprintf( 1420 buf + len, PAGE_SIZE - len, 1421 "avg:%08lld min:%08lld max %08lld\n", 1422 div_u64(phba->ktime_seg2_total, 1423 phba->ktime_data_samples), 1424 phba->ktime_seg2_min, 1425 phba->ktime_seg2_max); 1426 len += scnprintf( 1427 buf + len, PAGE_SIZE - len, 1428 "Segment 3: Firmware WQ doorbell -to- " 1429 "MSI-X ISR cmpl\n"); 1430 len += scnprintf( 1431 buf + len, PAGE_SIZE - len, 1432 "avg:%08lld min:%08lld max %08lld\n", 1433 div_u64(phba->ktime_seg3_total, 1434 phba->ktime_data_samples), 1435 phba->ktime_seg3_min, 1436 phba->ktime_seg3_max); 1437 len += scnprintf( 1438 buf + len, PAGE_SIZE - len, 1439 "Segment 4: MSI-X ISR cmpl -to- " 1440 "Cmd cmpl done\n"); 1441 len += scnprintf( 1442 buf + len, PAGE_SIZE - len, 1443 "avg:%08lld min:%08lld max %08lld\n", 1444 div_u64(phba->ktime_seg4_total, 1445 phba->ktime_data_samples), 1446 phba->ktime_seg4_min, 1447 phba->ktime_seg4_max); 1448 len += scnprintf( 1449 buf + len, PAGE_SIZE - len, 1450 "Total IO avg time: %08lld\n", 1451 div_u64(phba->ktime_seg1_total + 1452 phba->ktime_seg2_total + 1453 phba->ktime_seg3_total + 1454 phba->ktime_seg4_total, 1455 phba->ktime_data_samples)); 1456 return len; 1457 } 1458 1459 /* NVME Target */ 1460 len += scnprintf(buf + len, PAGE_SIZE-len, 1461 "ktime %s: Total Samples: %lld %lld\n", 1462 (phba->ktime_on ? "Enabled" : "Disabled"), 1463 phba->ktime_data_samples, 1464 phba->ktime_status_samples); 1465 if (phba->ktime_data_samples == 0) 1466 return len; 1467 1468 len += scnprintf(buf + len, PAGE_SIZE-len, 1469 "Segment 1: MSI-X ISR Rcv cmd -to- " 1470 "cmd pass to NVME Layer\n"); 1471 len += scnprintf(buf + len, PAGE_SIZE-len, 1472 "avg:%08lld min:%08lld max %08lld\n", 1473 div_u64(phba->ktime_seg1_total, 1474 phba->ktime_data_samples), 1475 phba->ktime_seg1_min, 1476 phba->ktime_seg1_max); 1477 len += scnprintf(buf + len, PAGE_SIZE-len, 1478 "Segment 2: cmd pass to NVME Layer- " 1479 "-to- Driver rcv cmd OP (action)\n"); 1480 len += scnprintf(buf + len, PAGE_SIZE-len, 1481 "avg:%08lld min:%08lld max %08lld\n", 1482 div_u64(phba->ktime_seg2_total, 1483 phba->ktime_data_samples), 1484 phba->ktime_seg2_min, 1485 phba->ktime_seg2_max); 1486 len += scnprintf(buf + len, PAGE_SIZE-len, 1487 "Segment 3: Driver rcv cmd OP -to- " 1488 "Firmware WQ doorbell: cmd\n"); 1489 len += scnprintf(buf + len, PAGE_SIZE-len, 1490 "avg:%08lld min:%08lld max %08lld\n", 1491 div_u64(phba->ktime_seg3_total, 1492 phba->ktime_data_samples), 1493 phba->ktime_seg3_min, 1494 phba->ktime_seg3_max); 1495 len += scnprintf(buf + len, PAGE_SIZE-len, 1496 "Segment 4: Firmware WQ doorbell: cmd " 1497 "-to- MSI-X ISR for cmd cmpl\n"); 1498 len += scnprintf(buf + len, PAGE_SIZE-len, 1499 "avg:%08lld min:%08lld max %08lld\n", 1500 div_u64(phba->ktime_seg4_total, 1501 phba->ktime_data_samples), 1502 phba->ktime_seg4_min, 1503 phba->ktime_seg4_max); 1504 len += scnprintf(buf + len, PAGE_SIZE-len, 1505 "Segment 5: MSI-X ISR for cmd cmpl " 1506 "-to- NVME layer passed cmd done\n"); 1507 len += scnprintf(buf + len, PAGE_SIZE-len, 1508 "avg:%08lld min:%08lld max %08lld\n", 1509 div_u64(phba->ktime_seg5_total, 1510 phba->ktime_data_samples), 1511 phba->ktime_seg5_min, 1512 phba->ktime_seg5_max); 1513 1514 if (phba->ktime_status_samples == 0) { 1515 len += scnprintf(buf + len, PAGE_SIZE-len, 1516 "Total: cmd received by MSI-X ISR " 1517 "-to- cmd completed on wire\n"); 1518 len += scnprintf(buf + len, PAGE_SIZE-len, 1519 "avg:%08lld min:%08lld " 1520 "max %08lld\n", 1521 div_u64(phba->ktime_seg10_total, 1522 phba->ktime_data_samples), 1523 phba->ktime_seg10_min, 1524 phba->ktime_seg10_max); 1525 return len; 1526 } 1527 1528 len += scnprintf(buf + len, PAGE_SIZE-len, 1529 "Segment 6: NVME layer passed cmd done " 1530 "-to- Driver rcv rsp status OP\n"); 1531 len += scnprintf(buf + len, PAGE_SIZE-len, 1532 "avg:%08lld min:%08lld max %08lld\n", 1533 div_u64(phba->ktime_seg6_total, 1534 phba->ktime_status_samples), 1535 phba->ktime_seg6_min, 1536 phba->ktime_seg6_max); 1537 len += scnprintf(buf + len, PAGE_SIZE-len, 1538 "Segment 7: Driver rcv rsp status OP " 1539 "-to- Firmware WQ doorbell: status\n"); 1540 len += scnprintf(buf + len, PAGE_SIZE-len, 1541 "avg:%08lld min:%08lld max %08lld\n", 1542 div_u64(phba->ktime_seg7_total, 1543 phba->ktime_status_samples), 1544 phba->ktime_seg7_min, 1545 phba->ktime_seg7_max); 1546 len += scnprintf(buf + len, PAGE_SIZE-len, 1547 "Segment 8: Firmware WQ doorbell: status" 1548 " -to- MSI-X ISR for status cmpl\n"); 1549 len += scnprintf(buf + len, PAGE_SIZE-len, 1550 "avg:%08lld min:%08lld max %08lld\n", 1551 div_u64(phba->ktime_seg8_total, 1552 phba->ktime_status_samples), 1553 phba->ktime_seg8_min, 1554 phba->ktime_seg8_max); 1555 len += scnprintf(buf + len, PAGE_SIZE-len, 1556 "Segment 9: MSI-X ISR for status cmpl " 1557 "-to- NVME layer passed status done\n"); 1558 len += scnprintf(buf + len, PAGE_SIZE-len, 1559 "avg:%08lld min:%08lld max %08lld\n", 1560 div_u64(phba->ktime_seg9_total, 1561 phba->ktime_status_samples), 1562 phba->ktime_seg9_min, 1563 phba->ktime_seg9_max); 1564 len += scnprintf(buf + len, PAGE_SIZE-len, 1565 "Total: cmd received by MSI-X ISR -to- " 1566 "cmd completed on wire\n"); 1567 len += scnprintf(buf + len, PAGE_SIZE-len, 1568 "avg:%08lld min:%08lld max %08lld\n", 1569 div_u64(phba->ktime_seg10_total, 1570 phba->ktime_status_samples), 1571 phba->ktime_seg10_min, 1572 phba->ktime_seg10_max); 1573 return len; 1574} 1575 1576/** 1577 * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer 1578 * @phba: The phba to gather target node info from. 1579 * @buf: The buffer to dump log into. 1580 * @size: The maximum amount of data to process. 1581 * 1582 * Description: 1583 * This routine dumps the NVME IO trace associated with @phba 1584 * 1585 * Return Value: 1586 * This routine returns the amount of bytes that were dumped into @buf and will 1587 * not exceed @size. 1588 **/ 1589static int 1590lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size) 1591{ 1592 struct lpfc_debugfs_nvmeio_trc *dtp; 1593 int i, state, index, skip; 1594 int len = 0; 1595 1596 state = phba->nvmeio_trc_on; 1597 1598 index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) & 1599 (phba->nvmeio_trc_size - 1); 1600 skip = phba->nvmeio_trc_output_idx; 1601 1602 len += scnprintf(buf + len, size - len, 1603 "%s IO Trace %s: next_idx %d skip %d size %d\n", 1604 (phba->nvmet_support ? "NVME" : "NVMET"), 1605 (state ? "Enabled" : "Disabled"), 1606 index, skip, phba->nvmeio_trc_size); 1607 1608 if (!phba->nvmeio_trc || state) 1609 return len; 1610 1611 /* trace MUST bhe off to continue */ 1612 1613 for (i = index; i < phba->nvmeio_trc_size; i++) { 1614 if (skip) { 1615 skip--; 1616 continue; 1617 } 1618 dtp = phba->nvmeio_trc + i; 1619 phba->nvmeio_trc_output_idx++; 1620 1621 if (!dtp->fmt) 1622 continue; 1623 1624 len += scnprintf(buf + len, size - len, dtp->fmt, 1625 dtp->data1, dtp->data2, dtp->data3); 1626 1627 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1628 phba->nvmeio_trc_output_idx = 0; 1629 len += scnprintf(buf + len, size - len, 1630 "Trace Complete\n"); 1631 goto out; 1632 } 1633 1634 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1635 len += scnprintf(buf + len, size - len, 1636 "Trace Continue (%d of %d)\n", 1637 phba->nvmeio_trc_output_idx, 1638 phba->nvmeio_trc_size); 1639 goto out; 1640 } 1641 } 1642 for (i = 0; i < index; i++) { 1643 if (skip) { 1644 skip--; 1645 continue; 1646 } 1647 dtp = phba->nvmeio_trc + i; 1648 phba->nvmeio_trc_output_idx++; 1649 1650 if (!dtp->fmt) 1651 continue; 1652 1653 len += scnprintf(buf + len, size - len, dtp->fmt, 1654 dtp->data1, dtp->data2, dtp->data3); 1655 1656 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1657 phba->nvmeio_trc_output_idx = 0; 1658 len += scnprintf(buf + len, size - len, 1659 "Trace Complete\n"); 1660 goto out; 1661 } 1662 1663 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1664 len += scnprintf(buf + len, size - len, 1665 "Trace Continue (%d of %d)\n", 1666 phba->nvmeio_trc_output_idx, 1667 phba->nvmeio_trc_size); 1668 goto out; 1669 } 1670 } 1671 1672 len += scnprintf(buf + len, size - len, 1673 "Trace Done\n"); 1674out: 1675 return len; 1676} 1677 1678/** 1679 * lpfc_debugfs_hdwqstat_data - Dump I/O stats to a buffer 1680 * @vport: The vport to gather target node info from. 1681 * @buf: The buffer to dump log into. 1682 * @size: The maximum amount of data to process. 1683 * 1684 * Description: 1685 * This routine dumps the NVME + SCSI statistics associated with @vport 1686 * 1687 * Return Value: 1688 * This routine returns the amount of bytes that were dumped into @buf and will 1689 * not exceed @size. 1690 **/ 1691static int 1692lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size) 1693{ 1694 struct lpfc_hba *phba = vport->phba; 1695 struct lpfc_hdwq_stat *c_stat; 1696 int i, j, len; 1697 uint32_t tot_xmt; 1698 uint32_t tot_rcv; 1699 uint32_t tot_cmpl; 1700 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 1701 1702 scnprintf(tmp, sizeof(tmp), "HDWQ Stats:\n\n"); 1703 if (strlcat(buf, tmp, size) >= size) 1704 goto buffer_done; 1705 1706 scnprintf(tmp, sizeof(tmp), "(NVME Accounting: %s) ", 1707 (phba->hdwqstat_on & 1708 (LPFC_CHECK_NVME_IO | LPFC_CHECK_NVMET_IO) ? 1709 "Enabled" : "Disabled")); 1710 if (strlcat(buf, tmp, size) >= size) 1711 goto buffer_done; 1712 1713 scnprintf(tmp, sizeof(tmp), "(SCSI Accounting: %s) ", 1714 (phba->hdwqstat_on & LPFC_CHECK_SCSI_IO ? 1715 "Enabled" : "Disabled")); 1716 if (strlcat(buf, tmp, size) >= size) 1717 goto buffer_done; 1718 1719 scnprintf(tmp, sizeof(tmp), "\n\n"); 1720 if (strlcat(buf, tmp, size) >= size) 1721 goto buffer_done; 1722 1723 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1724 tot_rcv = 0; 1725 tot_xmt = 0; 1726 tot_cmpl = 0; 1727 1728 for_each_present_cpu(j) { 1729 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, j); 1730 1731 /* Only display for this HDWQ */ 1732 if (i != c_stat->hdwq_no) 1733 continue; 1734 1735 /* Only display non-zero counters */ 1736 if (!c_stat->xmt_io && !c_stat->cmpl_io && 1737 !c_stat->rcv_io) 1738 continue; 1739 1740 if (!tot_xmt && !tot_cmpl && !tot_rcv) { 1741 /* Print HDWQ string only the first time */ 1742 scnprintf(tmp, sizeof(tmp), "[HDWQ %d]:\t", i); 1743 if (strlcat(buf, tmp, size) >= size) 1744 goto buffer_done; 1745 } 1746 1747 tot_xmt += c_stat->xmt_io; 1748 tot_cmpl += c_stat->cmpl_io; 1749 if (phba->nvmet_support) 1750 tot_rcv += c_stat->rcv_io; 1751 1752 scnprintf(tmp, sizeof(tmp), "| [CPU %d]: ", j); 1753 if (strlcat(buf, tmp, size) >= size) 1754 goto buffer_done; 1755 1756 if (phba->nvmet_support) { 1757 scnprintf(tmp, sizeof(tmp), 1758 "XMT 0x%x CMPL 0x%x RCV 0x%x |", 1759 c_stat->xmt_io, c_stat->cmpl_io, 1760 c_stat->rcv_io); 1761 if (strlcat(buf, tmp, size) >= size) 1762 goto buffer_done; 1763 } else { 1764 scnprintf(tmp, sizeof(tmp), 1765 "XMT 0x%x CMPL 0x%x |", 1766 c_stat->xmt_io, c_stat->cmpl_io); 1767 if (strlcat(buf, tmp, size) >= size) 1768 goto buffer_done; 1769 } 1770 } 1771 1772 /* Check if nothing to display */ 1773 if (!tot_xmt && !tot_cmpl && !tot_rcv) 1774 continue; 1775 1776 scnprintf(tmp, sizeof(tmp), "\t->\t[HDWQ Total: "); 1777 if (strlcat(buf, tmp, size) >= size) 1778 goto buffer_done; 1779 1780 if (phba->nvmet_support) { 1781 scnprintf(tmp, sizeof(tmp), 1782 "XMT 0x%x CMPL 0x%x RCV 0x%x]\n\n", 1783 tot_xmt, tot_cmpl, tot_rcv); 1784 if (strlcat(buf, tmp, size) >= size) 1785 goto buffer_done; 1786 } else { 1787 scnprintf(tmp, sizeof(tmp), 1788 "XMT 0x%x CMPL 0x%x]\n\n", 1789 tot_xmt, tot_cmpl); 1790 if (strlcat(buf, tmp, size) >= size) 1791 goto buffer_done; 1792 } 1793 } 1794 1795buffer_done: 1796 len = strnlen(buf, size); 1797 return len; 1798} 1799 1800#endif 1801 1802/** 1803 * lpfc_debugfs_disc_trc - Store discovery trace log 1804 * @vport: The vport to associate this trace string with for retrieval. 1805 * @mask: Log entry classification. 1806 * @fmt: Format string to be displayed when dumping the log. 1807 * @data1: 1st data parameter to be applied to @fmt. 1808 * @data2: 2nd data parameter to be applied to @fmt. 1809 * @data3: 3rd data parameter to be applied to @fmt. 1810 * 1811 * Description: 1812 * This routine is used by the driver code to add a debugfs log entry to the 1813 * discovery trace buffer associated with @vport. Only entries with a @mask that 1814 * match the current debugfs discovery mask will be saved. Entries that do not 1815 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 1816 * printf when displaying the log. 1817 **/ 1818inline void 1819lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 1820 uint32_t data1, uint32_t data2, uint32_t data3) 1821{ 1822#ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1823 struct lpfc_debugfs_trc *dtp; 1824 int index; 1825 1826 if (!(lpfc_debugfs_mask_disc_trc & mask)) 1827 return; 1828 1829 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 1830 !vport || !vport->disc_trc) 1831 return; 1832 1833 index = atomic_inc_return(&vport->disc_trc_cnt) & 1834 (lpfc_debugfs_max_disc_trc - 1); 1835 dtp = vport->disc_trc + index; 1836 dtp->fmt = fmt; 1837 dtp->data1 = data1; 1838 dtp->data2 = data2; 1839 dtp->data3 = data3; 1840 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1841 dtp->jif = jiffies; 1842#endif 1843 return; 1844} 1845 1846/** 1847 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 1848 * @phba: The phba to associate this trace string with for retrieval. 1849 * @fmt: Format string to be displayed when dumping the log. 1850 * @data1: 1st data parameter to be applied to @fmt. 1851 * @data2: 2nd data parameter to be applied to @fmt. 1852 * @data3: 3rd data parameter to be applied to @fmt. 1853 * 1854 * Description: 1855 * This routine is used by the driver code to add a debugfs log entry to the 1856 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 1857 * @data3 are used like printf when displaying the log. 1858 **/ 1859inline void 1860lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 1861 uint32_t data1, uint32_t data2, uint32_t data3) 1862{ 1863#ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1864 struct lpfc_debugfs_trc *dtp; 1865 int index; 1866 1867 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 1868 !phba || !phba->slow_ring_trc) 1869 return; 1870 1871 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 1872 (lpfc_debugfs_max_slow_ring_trc - 1); 1873 dtp = phba->slow_ring_trc + index; 1874 dtp->fmt = fmt; 1875 dtp->data1 = data1; 1876 dtp->data2 = data2; 1877 dtp->data3 = data3; 1878 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1879 dtp->jif = jiffies; 1880#endif 1881 return; 1882} 1883 1884/** 1885 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log 1886 * @phba: The phba to associate this trace string with for retrieval. 1887 * @fmt: Format string to be displayed when dumping the log. 1888 * @data1: 1st data parameter to be applied to @fmt. 1889 * @data2: 2nd data parameter to be applied to @fmt. 1890 * @data3: 3rd data parameter to be applied to @fmt. 1891 * 1892 * Description: 1893 * This routine is used by the driver code to add a debugfs log entry to the 1894 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and 1895 * @data3 are used like printf when displaying the log. 1896 **/ 1897inline void 1898lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, 1899 uint16_t data1, uint16_t data2, uint32_t data3) 1900{ 1901#ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1902 struct lpfc_debugfs_nvmeio_trc *dtp; 1903 int index; 1904 1905 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) 1906 return; 1907 1908 index = atomic_inc_return(&phba->nvmeio_trc_cnt) & 1909 (phba->nvmeio_trc_size - 1); 1910 dtp = phba->nvmeio_trc + index; 1911 dtp->fmt = fmt; 1912 dtp->data1 = data1; 1913 dtp->data2 = data2; 1914 dtp->data3 = data3; 1915#endif 1916} 1917 1918#ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1919/** 1920 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 1921 * @inode: The inode pointer that contains a vport pointer. 1922 * @file: The file pointer to attach the log output. 1923 * 1924 * Description: 1925 * This routine is the entry point for the debugfs open file operation. It gets 1926 * the vport from the i_private field in @inode, allocates the necessary buffer 1927 * for the log, fills the buffer from the in-memory log for this vport, and then 1928 * returns a pointer to that log in the private_data field in @file. 1929 * 1930 * Returns: 1931 * This function returns zero if successful. On error it will return a negative 1932 * error value. 1933 **/ 1934static int 1935lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 1936{ 1937 struct lpfc_vport *vport = inode->i_private; 1938 struct lpfc_debug *debug; 1939 int size; 1940 int rc = -ENOMEM; 1941 1942 if (!lpfc_debugfs_max_disc_trc) { 1943 rc = -ENOSPC; 1944 goto out; 1945 } 1946 1947 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1948 if (!debug) 1949 goto out; 1950 1951 /* Round to page boundary */ 1952 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1953 size = PAGE_ALIGN(size); 1954 1955 debug->buffer = kmalloc(size, GFP_KERNEL); 1956 if (!debug->buffer) { 1957 kfree(debug); 1958 goto out; 1959 } 1960 1961 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 1962 file->private_data = debug; 1963 1964 rc = 0; 1965out: 1966 return rc; 1967} 1968 1969/** 1970 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 1971 * @inode: The inode pointer that contains a vport pointer. 1972 * @file: The file pointer to attach the log output. 1973 * 1974 * Description: 1975 * This routine is the entry point for the debugfs open file operation. It gets 1976 * the vport from the i_private field in @inode, allocates the necessary buffer 1977 * for the log, fills the buffer from the in-memory log for this vport, and then 1978 * returns a pointer to that log in the private_data field in @file. 1979 * 1980 * Returns: 1981 * This function returns zero if successful. On error it will return a negative 1982 * error value. 1983 **/ 1984static int 1985lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 1986{ 1987 struct lpfc_hba *phba = inode->i_private; 1988 struct lpfc_debug *debug; 1989 int size; 1990 int rc = -ENOMEM; 1991 1992 if (!lpfc_debugfs_max_slow_ring_trc) { 1993 rc = -ENOSPC; 1994 goto out; 1995 } 1996 1997 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1998 if (!debug) 1999 goto out; 2000 2001 /* Round to page boundary */ 2002 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 2003 size = PAGE_ALIGN(size); 2004 2005 debug->buffer = kmalloc(size, GFP_KERNEL); 2006 if (!debug->buffer) { 2007 kfree(debug); 2008 goto out; 2009 } 2010 2011 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 2012 file->private_data = debug; 2013 2014 rc = 0; 2015out: 2016 return rc; 2017} 2018 2019/** 2020 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 2021 * @inode: The inode pointer that contains a vport pointer. 2022 * @file: The file pointer to attach the log output. 2023 * 2024 * Description: 2025 * This routine is the entry point for the debugfs open file operation. It gets 2026 * the vport from the i_private field in @inode, allocates the necessary buffer 2027 * for the log, fills the buffer from the in-memory log for this vport, and then 2028 * returns a pointer to that log in the private_data field in @file. 2029 * 2030 * Returns: 2031 * This function returns zero if successful. On error it will return a negative 2032 * error value. 2033 **/ 2034static int 2035lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 2036{ 2037 struct lpfc_hba *phba = inode->i_private; 2038 struct lpfc_debug *debug; 2039 int rc = -ENOMEM; 2040 2041 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2042 if (!debug) 2043 goto out; 2044 2045 /* Round to page boundary */ 2046 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 2047 if (!debug->buffer) { 2048 kfree(debug); 2049 goto out; 2050 } 2051 2052 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 2053 LPFC_HBQINFO_SIZE); 2054 file->private_data = debug; 2055 2056 rc = 0; 2057out: 2058 return rc; 2059} 2060 2061/** 2062 * lpfc_debugfs_multixripools_open - Open the multixripool debugfs buffer 2063 * @inode: The inode pointer that contains a hba pointer. 2064 * @file: The file pointer to attach the log output. 2065 * 2066 * Description: 2067 * This routine is the entry point for the debugfs open file operation. It gets 2068 * the hba from the i_private field in @inode, allocates the necessary buffer 2069 * for the log, fills the buffer from the in-memory log for this hba, and then 2070 * returns a pointer to that log in the private_data field in @file. 2071 * 2072 * Returns: 2073 * This function returns zero if successful. On error it will return a negative 2074 * error value. 2075 **/ 2076static int 2077lpfc_debugfs_multixripools_open(struct inode *inode, struct file *file) 2078{ 2079 struct lpfc_hba *phba = inode->i_private; 2080 struct lpfc_debug *debug; 2081 int rc = -ENOMEM; 2082 2083 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2084 if (!debug) 2085 goto out; 2086 2087 /* Round to page boundary */ 2088 debug->buffer = kzalloc(LPFC_DUMP_MULTIXRIPOOL_SIZE, GFP_KERNEL); 2089 if (!debug->buffer) { 2090 kfree(debug); 2091 goto out; 2092 } 2093 2094 debug->len = lpfc_debugfs_multixripools_data( 2095 phba, debug->buffer, LPFC_DUMP_MULTIXRIPOOL_SIZE); 2096 2097 debug->i_private = inode->i_private; 2098 file->private_data = debug; 2099 2100 rc = 0; 2101out: 2102 return rc; 2103} 2104 2105#ifdef LPFC_HDWQ_LOCK_STAT 2106/** 2107 * lpfc_debugfs_lockstat_open - Open the lockstat debugfs buffer 2108 * @inode: The inode pointer that contains a vport pointer. 2109 * @file: The file pointer to attach the log output. 2110 * 2111 * Description: 2112 * This routine is the entry point for the debugfs open file operation. It gets 2113 * the vport from the i_private field in @inode, allocates the necessary buffer 2114 * for the log, fills the buffer from the in-memory log for this vport, and then 2115 * returns a pointer to that log in the private_data field in @file. 2116 * 2117 * Returns: 2118 * This function returns zero if successful. On error it will return a negative 2119 * error value. 2120 **/ 2121static int 2122lpfc_debugfs_lockstat_open(struct inode *inode, struct file *file) 2123{ 2124 struct lpfc_hba *phba = inode->i_private; 2125 struct lpfc_debug *debug; 2126 int rc = -ENOMEM; 2127 2128 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2129 if (!debug) 2130 goto out; 2131 2132 /* Round to page boundary */ 2133 debug->buffer = kmalloc(LPFC_HDWQINFO_SIZE, GFP_KERNEL); 2134 if (!debug->buffer) { 2135 kfree(debug); 2136 goto out; 2137 } 2138 2139 debug->len = lpfc_debugfs_lockstat_data(phba, debug->buffer, 2140 LPFC_HBQINFO_SIZE); 2141 file->private_data = debug; 2142 2143 rc = 0; 2144out: 2145 return rc; 2146} 2147 2148static ssize_t 2149lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf, 2150 size_t nbytes, loff_t *ppos) 2151{ 2152 struct lpfc_debug *debug = file->private_data; 2153 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2154 struct lpfc_sli4_hdw_queue *qp; 2155 char mybuf[64]; 2156 char *pbuf; 2157 int i; 2158 size_t bsize; 2159 2160 memset(mybuf, 0, sizeof(mybuf)); 2161 2162 bsize = min(nbytes, (sizeof(mybuf) - 1)); 2163 2164 if (copy_from_user(mybuf, buf, bsize)) 2165 return -EFAULT; 2166 pbuf = &mybuf[0]; 2167 2168 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2169 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2170 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2171 qp = &phba->sli4_hba.hdwq[i]; 2172 qp->lock_conflict.alloc_xri_get = 0; 2173 qp->lock_conflict.alloc_xri_put = 0; 2174 qp->lock_conflict.free_xri = 0; 2175 qp->lock_conflict.wq_access = 0; 2176 qp->lock_conflict.alloc_pvt_pool = 0; 2177 qp->lock_conflict.mv_from_pvt_pool = 0; 2178 qp->lock_conflict.mv_to_pub_pool = 0; 2179 qp->lock_conflict.mv_to_pvt_pool = 0; 2180 qp->lock_conflict.free_pvt_pool = 0; 2181 qp->lock_conflict.free_pub_pool = 0; 2182 qp->lock_conflict.wq_access = 0; 2183 } 2184 } 2185 return bsize; 2186} 2187#endif 2188 2189static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba, 2190 char *buffer, int size) 2191{ 2192 int copied = 0; 2193 struct lpfc_dmabuf *dmabuf, *next; 2194 2195 memset(buffer, 0, size); 2196 2197 spin_lock_irq(&phba->ras_fwlog_lock); 2198 if (phba->ras_fwlog.state != ACTIVE) { 2199 spin_unlock_irq(&phba->ras_fwlog_lock); 2200 return -EINVAL; 2201 } 2202 spin_unlock_irq(&phba->ras_fwlog_lock); 2203 2204 list_for_each_entry_safe(dmabuf, next, 2205 &phba->ras_fwlog.fwlog_buff_list, list) { 2206 /* Check if copying will go over size and a '\0' char */ 2207 if ((copied + LPFC_RAS_MAX_ENTRY_SIZE) >= (size - 1)) { 2208 memcpy(buffer + copied, dmabuf->virt, 2209 size - copied - 1); 2210 copied += size - copied - 1; 2211 break; 2212 } 2213 memcpy(buffer + copied, dmabuf->virt, LPFC_RAS_MAX_ENTRY_SIZE); 2214 copied += LPFC_RAS_MAX_ENTRY_SIZE; 2215 } 2216 return copied; 2217} 2218 2219static int 2220lpfc_debugfs_ras_log_release(struct inode *inode, struct file *file) 2221{ 2222 struct lpfc_debug *debug = file->private_data; 2223 2224 vfree(debug->buffer); 2225 kfree(debug); 2226 2227 return 0; 2228} 2229 2230/** 2231 * lpfc_debugfs_ras_log_open - Open the RAS log debugfs buffer 2232 * @inode: The inode pointer that contains a vport pointer. 2233 * @file: The file pointer to attach the log output. 2234 * 2235 * Description: 2236 * This routine is the entry point for the debugfs open file operation. It gets 2237 * the vport from the i_private field in @inode, allocates the necessary buffer 2238 * for the log, fills the buffer from the in-memory log for this vport, and then 2239 * returns a pointer to that log in the private_data field in @file. 2240 * 2241 * Returns: 2242 * This function returns zero if successful. On error it will return a negative 2243 * error value. 2244 **/ 2245static int 2246lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file) 2247{ 2248 struct lpfc_hba *phba = inode->i_private; 2249 struct lpfc_debug *debug; 2250 int size; 2251 int rc = -ENOMEM; 2252 2253 spin_lock_irq(&phba->ras_fwlog_lock); 2254 if (phba->ras_fwlog.state != ACTIVE) { 2255 spin_unlock_irq(&phba->ras_fwlog_lock); 2256 rc = -EINVAL; 2257 goto out; 2258 } 2259 spin_unlock_irq(&phba->ras_fwlog_lock); 2260 2261 if (check_mul_overflow(LPFC_RAS_MIN_BUFF_POST_SIZE, 2262 phba->cfg_ras_fwlog_buffsize, &size)) 2263 goto out; 2264 2265 debug = kzalloc(sizeof(*debug), GFP_KERNEL); 2266 if (!debug) 2267 goto out; 2268 2269 debug->buffer = vmalloc(size); 2270 if (!debug->buffer) 2271 goto free_debug; 2272 2273 debug->len = lpfc_debugfs_ras_log_data(phba, debug->buffer, size); 2274 if (debug->len < 0) { 2275 rc = -EINVAL; 2276 goto free_buffer; 2277 } 2278 file->private_data = debug; 2279 2280 return 0; 2281 2282free_buffer: 2283 vfree(debug->buffer); 2284free_debug: 2285 kfree(debug); 2286out: 2287 return rc; 2288} 2289 2290/** 2291 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 2292 * @inode: The inode pointer that contains a vport pointer. 2293 * @file: The file pointer to attach the log output. 2294 * 2295 * Description: 2296 * This routine is the entry point for the debugfs open file operation. It gets 2297 * the vport from the i_private field in @inode, allocates the necessary buffer 2298 * for the log, fills the buffer from the in-memory log for this vport, and then 2299 * returns a pointer to that log in the private_data field in @file. 2300 * 2301 * Returns: 2302 * This function returns zero if successful. On error it will return a negative 2303 * error value. 2304 **/ 2305static int 2306lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 2307{ 2308 struct lpfc_hba *phba = inode->i_private; 2309 struct lpfc_debug *debug; 2310 int rc = -ENOMEM; 2311 2312 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2313 if (!debug) 2314 goto out; 2315 2316 /* Round to page boundary */ 2317 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 2318 if (!debug->buffer) { 2319 kfree(debug); 2320 goto out; 2321 } 2322 2323 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 2324 LPFC_DUMPHBASLIM_SIZE); 2325 file->private_data = debug; 2326 2327 rc = 0; 2328out: 2329 return rc; 2330} 2331 2332/** 2333 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 2334 * @inode: The inode pointer that contains a vport pointer. 2335 * @file: The file pointer to attach the log output. 2336 * 2337 * Description: 2338 * This routine is the entry point for the debugfs open file operation. It gets 2339 * the vport from the i_private field in @inode, allocates the necessary buffer 2340 * for the log, fills the buffer from the in-memory log for this vport, and then 2341 * returns a pointer to that log in the private_data field in @file. 2342 * 2343 * Returns: 2344 * This function returns zero if successful. On error it will return a negative 2345 * error value. 2346 **/ 2347static int 2348lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 2349{ 2350 struct lpfc_hba *phba = inode->i_private; 2351 struct lpfc_debug *debug; 2352 int rc = -ENOMEM; 2353 2354 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2355 if (!debug) 2356 goto out; 2357 2358 /* Round to page boundary */ 2359 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 2360 if (!debug->buffer) { 2361 kfree(debug); 2362 goto out; 2363 } 2364 2365 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 2366 LPFC_DUMPHOSTSLIM_SIZE); 2367 file->private_data = debug; 2368 2369 rc = 0; 2370out: 2371 return rc; 2372} 2373 2374static ssize_t 2375lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 2376 size_t nbytes, loff_t *ppos) 2377{ 2378 struct lpfc_hba *phba = file->private_data; 2379 int kind = debugfs_get_aux_num(file); 2380 char cbuf[32] = {0}; 2381 int cnt = 0; 2382 2383 switch (kind) { 2384 case writeGuard: 2385 cnt = scnprintf(cbuf, sizeof(cbuf), "%u\n", 2386 phba->lpfc_injerr_wgrd_cnt); 2387 break; 2388 case writeApp: 2389 cnt = scnprintf(cbuf, sizeof(cbuf), "%u\n", 2390 phba->lpfc_injerr_wapp_cnt); 2391 break; 2392 case writeRef: 2393 cnt = scnprintf(cbuf, sizeof(cbuf), "%u\n", 2394 phba->lpfc_injerr_wref_cnt); 2395 break; 2396 case readGuard: 2397 cnt = scnprintf(cbuf, sizeof(cbuf), "%u\n", 2398 phba->lpfc_injerr_rgrd_cnt); 2399 break; 2400 case readApp: 2401 cnt = scnprintf(cbuf, sizeof(cbuf), "%u\n", 2402 phba->lpfc_injerr_rapp_cnt); 2403 break; 2404 case readRef: 2405 cnt = scnprintf(cbuf, sizeof(cbuf), "%u\n", 2406 phba->lpfc_injerr_rref_cnt); 2407 break; 2408 case InjErrNPortID: 2409 cnt = scnprintf(cbuf, sizeof(cbuf), "0x%06x\n", 2410 phba->lpfc_injerr_nportid); 2411 break; 2412 case InjErrWWPN: 2413 cnt = scnprintf(cbuf, sizeof(cbuf), "0x%016llx\n", 2414 be64_to_cpu(phba->lpfc_injerr_wwpn.u.wwn_be)); 2415 break; 2416 case InjErrLBA: 2417 if (phba->lpfc_injerr_lba == LPFC_INJERR_LBA_OFF) 2418 cnt = scnprintf(cbuf, sizeof(cbuf), "off\n"); 2419 else 2420 cnt = scnprintf(cbuf, sizeof(cbuf), "0x%llx\n", 2421 (uint64_t)phba->lpfc_injerr_lba); 2422 break; 2423 default: 2424 lpfc_log_msg(phba, KERN_WARNING, LOG_INIT, 2425 "0547 Unknown debugfs error injection entry\n"); 2426 break; 2427 } 2428 2429 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 2430} 2431 2432static ssize_t 2433lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 2434 size_t nbytes, loff_t *ppos) 2435{ 2436 struct lpfc_hba *phba = file->private_data; 2437 int kind = debugfs_get_aux_num(file); 2438 char dstbuf[33] = {0}; 2439 unsigned long long tmp; 2440 unsigned long size; 2441 2442 size = (nbytes < (sizeof(dstbuf) - 1)) ? nbytes : (sizeof(dstbuf) - 1); 2443 if (copy_from_user(dstbuf, buf, size)) 2444 return -EFAULT; 2445 2446 if (kstrtoull(dstbuf, 0, &tmp)) { 2447 if (kind != InjErrLBA || !strstr(dstbuf, "off")) 2448 return -EINVAL; 2449 } 2450 2451 switch (kind) { 2452 case writeGuard: 2453 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 2454 break; 2455 case writeApp: 2456 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 2457 break; 2458 case writeRef: 2459 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 2460 break; 2461 case readGuard: 2462 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 2463 break; 2464 case readApp: 2465 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 2466 break; 2467 case readRef: 2468 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 2469 break; 2470 case InjErrLBA: 2471 if (strstr(dstbuf, "off")) 2472 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 2473 else 2474 phba->lpfc_injerr_lba = (sector_t)tmp; 2475 break; 2476 case InjErrNPortID: 2477 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 2478 break; 2479 case InjErrWWPN: 2480 phba->lpfc_injerr_wwpn.u.wwn_be = cpu_to_be64(tmp); 2481 break; 2482 default: 2483 lpfc_log_msg(phba, KERN_WARNING, LOG_INIT, 2484 "0548 Unknown debugfs error injection entry\n"); 2485 break; 2486 } 2487 return nbytes; 2488} 2489 2490static int 2491lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 2492{ 2493 return 0; 2494} 2495 2496/** 2497 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 2498 * @inode: The inode pointer that contains a vport pointer. 2499 * @file: The file pointer to attach the log output. 2500 * 2501 * Description: 2502 * This routine is the entry point for the debugfs open file operation. It gets 2503 * the vport from the i_private field in @inode, allocates the necessary buffer 2504 * for the log, fills the buffer from the in-memory log for this vport, and then 2505 * returns a pointer to that log in the private_data field in @file. 2506 * 2507 * Returns: 2508 * This function returns zero if successful. On error it will return a negative 2509 * error value. 2510 **/ 2511static int 2512lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 2513{ 2514 struct lpfc_vport *vport = inode->i_private; 2515 struct lpfc_debug *debug; 2516 int rc = -ENOMEM; 2517 2518 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2519 if (!debug) 2520 goto out; 2521 2522 /* Round to page boundary */ 2523 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 2524 if (!debug->buffer) { 2525 kfree(debug); 2526 goto out; 2527 } 2528 2529 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 2530 LPFC_NODELIST_SIZE); 2531 file->private_data = debug; 2532 2533 rc = 0; 2534out: 2535 return rc; 2536} 2537 2538/** 2539 * lpfc_debugfs_lseek - Seek through a debugfs file 2540 * @file: The file pointer to seek through. 2541 * @off: The offset to seek to or the amount to seek by. 2542 * @whence: Indicates how to seek. 2543 * 2544 * Description: 2545 * This routine is the entry point for the debugfs lseek file operation. The 2546 * @whence parameter indicates whether @off is the offset to directly seek to, 2547 * or if it is a value to seek forward or reverse by. This function figures out 2548 * what the new offset of the debugfs file will be and assigns that value to the 2549 * f_pos field of @file. 2550 * 2551 * Returns: 2552 * This function returns the new offset if successful and returns a negative 2553 * error if unable to process the seek. 2554 **/ 2555static loff_t 2556lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 2557{ 2558 struct lpfc_debug *debug = file->private_data; 2559 return fixed_size_llseek(file, off, whence, debug->len); 2560} 2561 2562/** 2563 * lpfc_debugfs_read - Read a debugfs file 2564 * @file: The file pointer to read from. 2565 * @buf: The buffer to copy the data to. 2566 * @nbytes: The number of bytes to read. 2567 * @ppos: The position in the file to start reading from. 2568 * 2569 * Description: 2570 * This routine reads data from from the buffer indicated in the private_data 2571 * field of @file. It will start reading at @ppos and copy up to @nbytes of 2572 * data to @buf. 2573 * 2574 * Returns: 2575 * This function returns the amount of data that was read (this could be less 2576 * than @nbytes if the end of the file was reached) or a negative error value. 2577 **/ 2578static ssize_t 2579lpfc_debugfs_read(struct file *file, char __user *buf, 2580 size_t nbytes, loff_t *ppos) 2581{ 2582 struct lpfc_debug *debug = file->private_data; 2583 2584 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 2585 debug->len); 2586} 2587 2588/** 2589 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 2590 * @inode: The inode pointer that contains a vport pointer. (unused) 2591 * @file: The file pointer that contains the buffer to release. 2592 * 2593 * Description: 2594 * This routine frees the buffer that was allocated when the debugfs file was 2595 * opened. 2596 * 2597 * Returns: 2598 * This function returns zero. 2599 **/ 2600static int 2601lpfc_debugfs_release(struct inode *inode, struct file *file) 2602{ 2603 struct lpfc_debug *debug = file->private_data; 2604 2605 kfree(debug->buffer); 2606 kfree(debug); 2607 2608 return 0; 2609} 2610 2611/** 2612 * lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics 2613 * @file: The file pointer to read from. 2614 * @buf: The buffer to copy the user data from. 2615 * @nbytes: The number of bytes to get. 2616 * @ppos: The position in the file to start reading from. 2617 * 2618 * Description: 2619 * This routine clears multi-XRI pools statistics when buf contains "clear". 2620 * 2621 * Return Value: 2622 * It returns the @nbytges passing in from debugfs user space when successful. 2623 * In case of error conditions, it returns proper error code back to the user 2624 * space. 2625 **/ 2626static ssize_t 2627lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf, 2628 size_t nbytes, loff_t *ppos) 2629{ 2630 struct lpfc_debug *debug = file->private_data; 2631 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2632 char mybuf[64]; 2633 char *pbuf; 2634 u32 i; 2635 u32 hwq_count; 2636 struct lpfc_sli4_hdw_queue *qp; 2637 struct lpfc_multixri_pool *multixri_pool; 2638 2639 if (nbytes > sizeof(mybuf) - 1) 2640 nbytes = sizeof(mybuf) - 1; 2641 2642 memset(mybuf, 0, sizeof(mybuf)); 2643 2644 if (copy_from_user(mybuf, buf, nbytes)) 2645 return -EFAULT; 2646 pbuf = &mybuf[0]; 2647 2648 if ((strncmp(pbuf, "clear", strlen("clear"))) == 0) { 2649 hwq_count = phba->cfg_hdw_queue; 2650 for (i = 0; i < hwq_count; i++) { 2651 qp = &phba->sli4_hba.hdwq[i]; 2652 multixri_pool = qp->p_multixri_pool; 2653 if (!multixri_pool) 2654 continue; 2655 2656 qp->empty_io_bufs = 0; 2657 multixri_pool->pbl_empty_count = 0; 2658#ifdef LPFC_MXP_STAT 2659 multixri_pool->above_limit_count = 0; 2660 multixri_pool->below_limit_count = 0; 2661 multixri_pool->stat_max_hwm = 0; 2662 multixri_pool->local_pbl_hit_count = 0; 2663 multixri_pool->other_pbl_hit_count = 0; 2664 2665 multixri_pool->stat_pbl_count = 0; 2666 multixri_pool->stat_pvt_count = 0; 2667 multixri_pool->stat_busy_count = 0; 2668 multixri_pool->stat_snapshot_taken = 0; 2669#endif 2670 } 2671 return strlen(pbuf); 2672 } 2673 2674 return -EINVAL; 2675} 2676 2677static int 2678lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 2679{ 2680 struct lpfc_vport *vport = inode->i_private; 2681 struct lpfc_debug *debug; 2682 int rc = -ENOMEM; 2683 2684 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2685 if (!debug) 2686 goto out; 2687 2688 /* Round to page boundary */ 2689 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 2690 if (!debug->buffer) { 2691 kfree(debug); 2692 goto out; 2693 } 2694 2695 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 2696 LPFC_NVMESTAT_SIZE); 2697 2698 debug->i_private = inode->i_private; 2699 file->private_data = debug; 2700 2701 rc = 0; 2702out: 2703 return rc; 2704} 2705 2706static ssize_t 2707lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 2708 size_t nbytes, loff_t *ppos) 2709{ 2710 struct lpfc_debug *debug = file->private_data; 2711 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2712 struct lpfc_hba *phba = vport->phba; 2713 struct lpfc_nvmet_tgtport *tgtp; 2714 char mybuf[64]; 2715 char *pbuf; 2716 2717 if (!phba->targetport) 2718 return -ENXIO; 2719 2720 if (nbytes > sizeof(mybuf) - 1) 2721 nbytes = sizeof(mybuf) - 1; 2722 2723 memset(mybuf, 0, sizeof(mybuf)); 2724 2725 if (copy_from_user(mybuf, buf, nbytes)) 2726 return -EFAULT; 2727 pbuf = &mybuf[0]; 2728 2729 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2730 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2731 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2732 atomic_set(&tgtp->rcv_ls_req_in, 0); 2733 atomic_set(&tgtp->rcv_ls_req_out, 0); 2734 atomic_set(&tgtp->rcv_ls_req_drop, 0); 2735 atomic_set(&tgtp->xmt_ls_abort, 0); 2736 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 2737 atomic_set(&tgtp->xmt_ls_rsp, 0); 2738 atomic_set(&tgtp->xmt_ls_drop, 0); 2739 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 2740 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 2741 2742 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 2743 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 2744 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 2745 atomic_set(&tgtp->xmt_fcp_drop, 0); 2746 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 2747 atomic_set(&tgtp->xmt_fcp_read, 0); 2748 atomic_set(&tgtp->xmt_fcp_write, 0); 2749 atomic_set(&tgtp->xmt_fcp_rsp, 0); 2750 atomic_set(&tgtp->xmt_fcp_release, 0); 2751 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 2752 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 2753 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 2754 2755 atomic_set(&tgtp->xmt_fcp_abort, 0); 2756 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 2757 atomic_set(&tgtp->xmt_abort_sol, 0); 2758 atomic_set(&tgtp->xmt_abort_unsol, 0); 2759 atomic_set(&tgtp->xmt_abort_rsp, 0); 2760 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 2761 } 2762 return nbytes; 2763} 2764 2765static int 2766lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file) 2767{ 2768 struct lpfc_vport *vport = inode->i_private; 2769 struct lpfc_debug *debug; 2770 int rc = -ENOMEM; 2771 2772 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2773 if (!debug) 2774 goto out; 2775 2776 /* Round to page boundary */ 2777 debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL); 2778 if (!debug->buffer) { 2779 kfree(debug); 2780 goto out; 2781 } 2782 2783 debug->len = lpfc_debugfs_scsistat_data(vport, debug->buffer, 2784 LPFC_SCSISTAT_SIZE); 2785 2786 debug->i_private = inode->i_private; 2787 file->private_data = debug; 2788 2789 rc = 0; 2790out: 2791 return rc; 2792} 2793 2794static ssize_t 2795lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf, 2796 size_t nbytes, loff_t *ppos) 2797{ 2798 struct lpfc_debug *debug = file->private_data; 2799 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2800 struct lpfc_hba *phba = vport->phba; 2801 char mybuf[6] = {0}; 2802 int i; 2803 2804 if (copy_from_user(mybuf, buf, (nbytes >= sizeof(mybuf)) ? 2805 (sizeof(mybuf) - 1) : nbytes)) 2806 return -EFAULT; 2807 2808 if ((strncmp(&mybuf[0], "reset", strlen("reset")) == 0) || 2809 (strncmp(&mybuf[0], "zero", strlen("zero")) == 0)) { 2810 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2811 memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0, 2812 sizeof(phba->sli4_hba.hdwq[i].scsi_cstat)); 2813 } 2814 } 2815 2816 return nbytes; 2817} 2818 2819static int 2820lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file) 2821{ 2822 struct lpfc_vport *vport = inode->i_private; 2823 struct lpfc_debug *debug; 2824 int rc = -ENOMEM; 2825 2826 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2827 if (!debug) 2828 goto out; 2829 2830 /* Round to page boundary */ 2831 debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL); 2832 if (!debug->buffer) { 2833 kfree(debug); 2834 goto out; 2835 } 2836 2837 debug->len = lpfc_debugfs_ioktime_data(vport, debug->buffer, 2838 LPFC_IOKTIME_SIZE); 2839 2840 debug->i_private = inode->i_private; 2841 file->private_data = debug; 2842 2843 rc = 0; 2844out: 2845 return rc; 2846} 2847 2848static ssize_t 2849lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf, 2850 size_t nbytes, loff_t *ppos) 2851{ 2852 struct lpfc_debug *debug = file->private_data; 2853 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2854 struct lpfc_hba *phba = vport->phba; 2855 char mybuf[64]; 2856 char *pbuf; 2857 2858 if (nbytes > sizeof(mybuf) - 1) 2859 nbytes = sizeof(mybuf) - 1; 2860 2861 memset(mybuf, 0, sizeof(mybuf)); 2862 2863 if (copy_from_user(mybuf, buf, nbytes)) 2864 return -EFAULT; 2865 pbuf = &mybuf[0]; 2866 2867 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2868 phba->ktime_data_samples = 0; 2869 phba->ktime_status_samples = 0; 2870 phba->ktime_seg1_total = 0; 2871 phba->ktime_seg1_max = 0; 2872 phba->ktime_seg1_min = 0xffffffff; 2873 phba->ktime_seg2_total = 0; 2874 phba->ktime_seg2_max = 0; 2875 phba->ktime_seg2_min = 0xffffffff; 2876 phba->ktime_seg3_total = 0; 2877 phba->ktime_seg3_max = 0; 2878 phba->ktime_seg3_min = 0xffffffff; 2879 phba->ktime_seg4_total = 0; 2880 phba->ktime_seg4_max = 0; 2881 phba->ktime_seg4_min = 0xffffffff; 2882 phba->ktime_seg5_total = 0; 2883 phba->ktime_seg5_max = 0; 2884 phba->ktime_seg5_min = 0xffffffff; 2885 phba->ktime_seg6_total = 0; 2886 phba->ktime_seg6_max = 0; 2887 phba->ktime_seg6_min = 0xffffffff; 2888 phba->ktime_seg7_total = 0; 2889 phba->ktime_seg7_max = 0; 2890 phba->ktime_seg7_min = 0xffffffff; 2891 phba->ktime_seg8_total = 0; 2892 phba->ktime_seg8_max = 0; 2893 phba->ktime_seg8_min = 0xffffffff; 2894 phba->ktime_seg9_total = 0; 2895 phba->ktime_seg9_max = 0; 2896 phba->ktime_seg9_min = 0xffffffff; 2897 phba->ktime_seg10_total = 0; 2898 phba->ktime_seg10_max = 0; 2899 phba->ktime_seg10_min = 0xffffffff; 2900 2901 phba->ktime_on = 1; 2902 return strlen(pbuf); 2903 } else if ((strncmp(pbuf, "off", 2904 sizeof("off") - 1) == 0)) { 2905 phba->ktime_on = 0; 2906 return strlen(pbuf); 2907 } else if ((strncmp(pbuf, "zero", 2908 sizeof("zero") - 1) == 0)) { 2909 phba->ktime_data_samples = 0; 2910 phba->ktime_status_samples = 0; 2911 phba->ktime_seg1_total = 0; 2912 phba->ktime_seg1_max = 0; 2913 phba->ktime_seg1_min = 0xffffffff; 2914 phba->ktime_seg2_total = 0; 2915 phba->ktime_seg2_max = 0; 2916 phba->ktime_seg2_min = 0xffffffff; 2917 phba->ktime_seg3_total = 0; 2918 phba->ktime_seg3_max = 0; 2919 phba->ktime_seg3_min = 0xffffffff; 2920 phba->ktime_seg4_total = 0; 2921 phba->ktime_seg4_max = 0; 2922 phba->ktime_seg4_min = 0xffffffff; 2923 phba->ktime_seg5_total = 0; 2924 phba->ktime_seg5_max = 0; 2925 phba->ktime_seg5_min = 0xffffffff; 2926 phba->ktime_seg6_total = 0; 2927 phba->ktime_seg6_max = 0; 2928 phba->ktime_seg6_min = 0xffffffff; 2929 phba->ktime_seg7_total = 0; 2930 phba->ktime_seg7_max = 0; 2931 phba->ktime_seg7_min = 0xffffffff; 2932 phba->ktime_seg8_total = 0; 2933 phba->ktime_seg8_max = 0; 2934 phba->ktime_seg8_min = 0xffffffff; 2935 phba->ktime_seg9_total = 0; 2936 phba->ktime_seg9_max = 0; 2937 phba->ktime_seg9_min = 0xffffffff; 2938 phba->ktime_seg10_total = 0; 2939 phba->ktime_seg10_max = 0; 2940 phba->ktime_seg10_min = 0xffffffff; 2941 return strlen(pbuf); 2942 } 2943 return -EINVAL; 2944} 2945 2946static int 2947lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2948{ 2949 struct lpfc_hba *phba = inode->i_private; 2950 struct lpfc_debug *debug; 2951 int rc = -ENOMEM; 2952 2953 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2954 if (!debug) 2955 goto out; 2956 2957 /* Round to page boundary */ 2958 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2959 if (!debug->buffer) { 2960 kfree(debug); 2961 goto out; 2962 } 2963 2964 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2965 LPFC_NVMEIO_TRC_SIZE); 2966 2967 debug->i_private = inode->i_private; 2968 file->private_data = debug; 2969 2970 rc = 0; 2971out: 2972 return rc; 2973} 2974 2975static ssize_t 2976lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2977 size_t nbytes, loff_t *ppos) 2978{ 2979 struct lpfc_debug *debug = file->private_data; 2980 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2981 int i; 2982 unsigned long sz; 2983 char mybuf[64]; 2984 char *pbuf; 2985 2986 if (nbytes > sizeof(mybuf) - 1) 2987 nbytes = sizeof(mybuf) - 1; 2988 2989 memset(mybuf, 0, sizeof(mybuf)); 2990 2991 if (copy_from_user(mybuf, buf, nbytes)) 2992 return -EFAULT; 2993 pbuf = &mybuf[0]; 2994 2995 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2997 "0570 nvmeio_trc_off\n"); 2998 phba->nvmeio_trc_output_idx = 0; 2999 phba->nvmeio_trc_on = 0; 3000 return strlen(pbuf); 3001 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 3002 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3003 "0571 nvmeio_trc_on\n"); 3004 phba->nvmeio_trc_output_idx = 0; 3005 phba->nvmeio_trc_on = 1; 3006 return strlen(pbuf); 3007 } 3008 3009 /* We must be off to allocate the trace buffer */ 3010 if (phba->nvmeio_trc_on != 0) 3011 return -EINVAL; 3012 3013 /* If not on or off, the parameter is the trace buffer size */ 3014 i = kstrtoul(pbuf, 0, &sz); 3015 if (i) 3016 return -EINVAL; 3017 phba->nvmeio_trc_size = (uint32_t)sz; 3018 3019 /* It must be a power of 2 - round down */ 3020 i = 0; 3021 while (sz > 1) { 3022 sz = sz >> 1; 3023 i++; 3024 } 3025 sz = (1 << i); 3026 if (phba->nvmeio_trc_size != sz) 3027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3028 "0572 nvmeio_trc_size changed to %ld\n", 3029 sz); 3030 phba->nvmeio_trc_size = (uint32_t)sz; 3031 3032 /* If one previously exists, free it */ 3033 kfree(phba->nvmeio_trc); 3034 3035 /* Allocate new trace buffer and initialize */ 3036 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 3037 sz), GFP_KERNEL); 3038 if (!phba->nvmeio_trc) { 3039 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3040 "0573 Cannot create debugfs " 3041 "nvmeio_trc buffer\n"); 3042 return -ENOMEM; 3043 } 3044 atomic_set(&phba->nvmeio_trc_cnt, 0); 3045 phba->nvmeio_trc_on = 0; 3046 phba->nvmeio_trc_output_idx = 0; 3047 3048 return strlen(pbuf); 3049} 3050 3051static int 3052lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file) 3053{ 3054 struct lpfc_vport *vport = inode->i_private; 3055 struct lpfc_debug *debug; 3056 int rc = -ENOMEM; 3057 3058 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3059 if (!debug) 3060 goto out; 3061 3062 /* Round to page boundary */ 3063 debug->buffer = kcalloc(1, LPFC_SCSISTAT_SIZE, GFP_KERNEL); 3064 if (!debug->buffer) { 3065 kfree(debug); 3066 goto out; 3067 } 3068 3069 debug->len = lpfc_debugfs_hdwqstat_data(vport, debug->buffer, 3070 LPFC_SCSISTAT_SIZE); 3071 3072 debug->i_private = inode->i_private; 3073 file->private_data = debug; 3074 3075 rc = 0; 3076out: 3077 return rc; 3078} 3079 3080static ssize_t 3081lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf, 3082 size_t nbytes, loff_t *ppos) 3083{ 3084 struct lpfc_debug *debug = file->private_data; 3085 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 3086 struct lpfc_hba *phba = vport->phba; 3087 struct lpfc_hdwq_stat *c_stat; 3088 char mybuf[64]; 3089 char *pbuf; 3090 int i; 3091 3092 if (nbytes > sizeof(mybuf) - 1) 3093 nbytes = sizeof(mybuf) - 1; 3094 3095 memset(mybuf, 0, sizeof(mybuf)); 3096 3097 if (copy_from_user(mybuf, buf, nbytes)) 3098 return -EFAULT; 3099 pbuf = &mybuf[0]; 3100 3101 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 3102 if (phba->nvmet_support) 3103 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3104 else 3105 phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO | 3106 LPFC_CHECK_SCSI_IO); 3107 return strlen(pbuf); 3108 } else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) { 3109 if (phba->nvmet_support) 3110 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3111 else 3112 phba->hdwqstat_on |= LPFC_CHECK_NVME_IO; 3113 return strlen(pbuf); 3114 } else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) { 3115 if (!phba->nvmet_support) 3116 phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO; 3117 return strlen(pbuf); 3118 } else if ((strncmp(pbuf, "nvme_off", sizeof("nvme_off") - 1) == 0)) { 3119 phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO | 3120 LPFC_CHECK_NVMET_IO); 3121 return strlen(pbuf); 3122 } else if ((strncmp(pbuf, "scsi_off", sizeof("scsi_off") - 1) == 0)) { 3123 phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO; 3124 return strlen(pbuf); 3125 } else if ((strncmp(pbuf, "off", 3126 sizeof("off") - 1) == 0)) { 3127 phba->hdwqstat_on = LPFC_CHECK_OFF; 3128 return strlen(pbuf); 3129 } else if ((strncmp(pbuf, "zero", 3130 sizeof("zero") - 1) == 0)) { 3131 for_each_present_cpu(i) { 3132 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i); 3133 c_stat->xmt_io = 0; 3134 c_stat->cmpl_io = 0; 3135 c_stat->rcv_io = 0; 3136 } 3137 return strlen(pbuf); 3138 } 3139 return -EINVAL; 3140} 3141 3142/* 3143 * --------------------------------- 3144 * iDiag debugfs file access methods 3145 * --------------------------------- 3146 * 3147 * All access methods are through the proper SLI4 PCI function's debugfs 3148 * iDiag directory: 3149 * 3150 * /sys/kernel/debug/lpfc/fn<#>/iDiag 3151 */ 3152 3153/** 3154 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 3155 * @buf: The pointer to the user space buffer. 3156 * @nbytes: The number of bytes in the user space buffer. 3157 * @idiag_cmd: pointer to the idiag command struct. 3158 * 3159 * This routine reads data from debugfs user space buffer and parses the 3160 * buffer for getting the idiag command and arguments. The while space in 3161 * between the set of data is used as the parsing separator. 3162 * 3163 * This routine returns 0 when successful, it returns proper error code 3164 * back to the user space in error conditions. 3165 */ 3166static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 3167 struct lpfc_idiag_cmd *idiag_cmd) 3168{ 3169 char mybuf[64]; 3170 char *pbuf, *step_str; 3171 int i; 3172 size_t bsize; 3173 3174 memset(mybuf, 0, sizeof(mybuf)); 3175 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 3176 bsize = min(nbytes, (sizeof(mybuf)-1)); 3177 3178 if (copy_from_user(mybuf, buf, bsize)) 3179 return -EFAULT; 3180 pbuf = &mybuf[0]; 3181 step_str = strsep(&pbuf, "\t "); 3182 3183 /* The opcode must present */ 3184 if (!step_str) 3185 return -EINVAL; 3186 3187 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 3188 if (idiag_cmd->opcode == 0) 3189 return -EINVAL; 3190 3191 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 3192 step_str = strsep(&pbuf, "\t "); 3193 if (!step_str) 3194 return i; 3195 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 3196 } 3197 return i; 3198} 3199 3200/** 3201 * lpfc_idiag_open - idiag open debugfs 3202 * @inode: The inode pointer that contains a pointer to phba. 3203 * @file: The file pointer to attach the file operation. 3204 * 3205 * Description: 3206 * This routine is the entry point for the debugfs open file operation. It 3207 * gets the reference to phba from the i_private field in @inode, it then 3208 * allocates buffer for the file operation, performs the necessary PCI config 3209 * space read into the allocated buffer according to the idiag user command 3210 * setup, and then returns a pointer to buffer in the private_data field in 3211 * @file. 3212 * 3213 * Returns: 3214 * This function returns zero if successful. On error it will return an 3215 * negative error value. 3216 **/ 3217static int 3218lpfc_idiag_open(struct inode *inode, struct file *file) 3219{ 3220 struct lpfc_debug *debug; 3221 3222 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3223 if (!debug) 3224 return -ENOMEM; 3225 3226 debug->i_private = inode->i_private; 3227 debug->buffer = NULL; 3228 file->private_data = debug; 3229 3230 return 0; 3231} 3232 3233/** 3234 * lpfc_idiag_release - Release idiag access file operation 3235 * @inode: The inode pointer that contains a vport pointer. (unused) 3236 * @file: The file pointer that contains the buffer to release. 3237 * 3238 * Description: 3239 * This routine is the generic release routine for the idiag access file 3240 * operation, it frees the buffer that was allocated when the debugfs file 3241 * was opened. 3242 * 3243 * Returns: 3244 * This function returns zero. 3245 **/ 3246static int 3247lpfc_idiag_release(struct inode *inode, struct file *file) 3248{ 3249 struct lpfc_debug *debug = file->private_data; 3250 3251 /* Free the buffers to the file operation */ 3252 kfree(debug->buffer); 3253 kfree(debug); 3254 3255 return 0; 3256} 3257 3258/** 3259 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 3260 * @inode: The inode pointer that contains a vport pointer. (unused) 3261 * @file: The file pointer that contains the buffer to release. 3262 * 3263 * Description: 3264 * This routine frees the buffer that was allocated when the debugfs file 3265 * was opened. It also reset the fields in the idiag command struct in the 3266 * case of command for write operation. 3267 * 3268 * Returns: 3269 * This function returns zero. 3270 **/ 3271static int 3272lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 3273{ 3274 struct lpfc_debug *debug = file->private_data; 3275 3276 if (debug->op == LPFC_IDIAG_OP_WR) { 3277 switch (idiag.cmd.opcode) { 3278 case LPFC_IDIAG_CMD_PCICFG_WR: 3279 case LPFC_IDIAG_CMD_PCICFG_ST: 3280 case LPFC_IDIAG_CMD_PCICFG_CL: 3281 case LPFC_IDIAG_CMD_QUEACC_WR: 3282 case LPFC_IDIAG_CMD_QUEACC_ST: 3283 case LPFC_IDIAG_CMD_QUEACC_CL: 3284 memset(&idiag, 0, sizeof(idiag)); 3285 break; 3286 default: 3287 break; 3288 } 3289 } 3290 3291 /* Free the buffers to the file operation */ 3292 kfree(debug->buffer); 3293 kfree(debug); 3294 3295 return 0; 3296} 3297 3298/** 3299 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 3300 * @file: The file pointer to read from. 3301 * @buf: The buffer to copy the data to. 3302 * @nbytes: The number of bytes to read. 3303 * @ppos: The position in the file to start reading from. 3304 * 3305 * Description: 3306 * This routine reads data from the @phba pci config space according to the 3307 * idiag command, and copies to user @buf. Depending on the PCI config space 3308 * read command setup, it does either a single register read of a byte 3309 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 3310 * registers from the 4K extended PCI config space. 3311 * 3312 * Returns: 3313 * This function returns the amount of data that was read (this could be less 3314 * than @nbytes if the end of the file was reached) or a negative error value. 3315 **/ 3316static ssize_t 3317lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 3318 loff_t *ppos) 3319{ 3320 struct lpfc_debug *debug = file->private_data; 3321 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3322 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 3323 int where, count; 3324 char *pbuffer; 3325 struct pci_dev *pdev; 3326 uint32_t u32val; 3327 uint16_t u16val; 3328 uint8_t u8val; 3329 3330 pdev = phba->pcidev; 3331 if (!pdev) 3332 return 0; 3333 3334 /* This is a user read operation */ 3335 debug->op = LPFC_IDIAG_OP_RD; 3336 3337 if (!debug->buffer) 3338 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 3339 if (!debug->buffer) 3340 return 0; 3341 pbuffer = debug->buffer; 3342 3343 if (*ppos) 3344 return 0; 3345 3346 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3347 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3348 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3349 } else 3350 return 0; 3351 3352 /* Read single PCI config space register */ 3353 switch (count) { 3354 case SIZE_U8: /* byte (8 bits) */ 3355 pci_read_config_byte(pdev, where, &u8val); 3356 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3357 "%03x: %02x\n", where, u8val); 3358 break; 3359 case SIZE_U16: /* word (16 bits) */ 3360 pci_read_config_word(pdev, where, &u16val); 3361 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3362 "%03x: %04x\n", where, u16val); 3363 break; 3364 case SIZE_U32: /* double word (32 bits) */ 3365 pci_read_config_dword(pdev, where, &u32val); 3366 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3367 "%03x: %08x\n", where, u32val); 3368 break; 3369 case LPFC_PCI_CFG_BROWSE: /* browse all */ 3370 goto pcicfg_browse; 3371 default: 3372 /* illegal count */ 3373 len = 0; 3374 break; 3375 } 3376 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3377 3378pcicfg_browse: 3379 3380 /* Browse all PCI config space registers */ 3381 offset_label = idiag.offset.last_rd; 3382 offset = offset_label; 3383 3384 /* Read PCI config space */ 3385 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3386 "%03x: ", offset_label); 3387 while (index > 0) { 3388 pci_read_config_dword(pdev, offset, &u32val); 3389 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3390 "%08x ", u32val); 3391 offset += sizeof(uint32_t); 3392 if (offset >= LPFC_PCI_CFG_SIZE) { 3393 len += scnprintf(pbuffer+len, 3394 LPFC_PCI_CFG_SIZE-len, "\n"); 3395 break; 3396 } 3397 index -= sizeof(uint32_t); 3398 if (!index) 3399 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3400 "\n"); 3401 else if (!(index % (8 * sizeof(uint32_t)))) { 3402 offset_label += (8 * sizeof(uint32_t)); 3403 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3404 "\n%03x: ", offset_label); 3405 } 3406 } 3407 3408 /* Set up the offset for next portion of pci cfg read */ 3409 if (index == 0) { 3410 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 3411 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 3412 idiag.offset.last_rd = 0; 3413 } else 3414 idiag.offset.last_rd = 0; 3415 3416 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3417} 3418 3419/** 3420 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 3421 * @file: The file pointer to read from. 3422 * @buf: The buffer to copy the user data from. 3423 * @nbytes: The number of bytes to get. 3424 * @ppos: The position in the file to start reading from. 3425 * 3426 * This routine get the debugfs idiag command struct from user space and 3427 * then perform the syntax check for PCI config space read or write command 3428 * accordingly. In the case of PCI config space read command, it sets up 3429 * the command in the idiag command struct for the debugfs read operation. 3430 * In the case of PCI config space write operation, it executes the write 3431 * operation into the PCI config space accordingly. 3432 * 3433 * It returns the @nbytges passing in from debugfs user space when successful. 3434 * In case of error conditions, it returns proper error code back to the user 3435 * space. 3436 */ 3437static ssize_t 3438lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 3439 size_t nbytes, loff_t *ppos) 3440{ 3441 struct lpfc_debug *debug = file->private_data; 3442 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3443 uint32_t where, value, count; 3444 uint32_t u32val; 3445 uint16_t u16val; 3446 uint8_t u8val; 3447 struct pci_dev *pdev; 3448 int rc; 3449 3450 pdev = phba->pcidev; 3451 if (!pdev) 3452 return -EFAULT; 3453 3454 /* This is a user write operation */ 3455 debug->op = LPFC_IDIAG_OP_WR; 3456 3457 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3458 if (rc < 0) 3459 return rc; 3460 3461 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3462 /* Sanity check on PCI config read command line arguments */ 3463 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 3464 goto error_out; 3465 /* Read command from PCI config space, set up command fields */ 3466 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3467 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3468 if (count == LPFC_PCI_CFG_BROWSE) { 3469 if (where % sizeof(uint32_t)) 3470 goto error_out; 3471 /* Starting offset to browse */ 3472 idiag.offset.last_rd = where; 3473 } else if ((count != sizeof(uint8_t)) && 3474 (count != sizeof(uint16_t)) && 3475 (count != sizeof(uint32_t))) 3476 goto error_out; 3477 if (count == sizeof(uint8_t)) { 3478 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3479 goto error_out; 3480 if (where % sizeof(uint8_t)) 3481 goto error_out; 3482 } 3483 if (count == sizeof(uint16_t)) { 3484 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3485 goto error_out; 3486 if (where % sizeof(uint16_t)) 3487 goto error_out; 3488 } 3489 if (count == sizeof(uint32_t)) { 3490 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3491 goto error_out; 3492 if (where % sizeof(uint32_t)) 3493 goto error_out; 3494 } 3495 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 3496 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 3497 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3498 /* Sanity check on PCI config write command line arguments */ 3499 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 3500 goto error_out; 3501 /* Write command to PCI config space, read-modify-write */ 3502 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3503 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3504 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 3505 /* Sanity checks */ 3506 if ((count != sizeof(uint8_t)) && 3507 (count != sizeof(uint16_t)) && 3508 (count != sizeof(uint32_t))) 3509 goto error_out; 3510 if (count == sizeof(uint8_t)) { 3511 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3512 goto error_out; 3513 if (where % sizeof(uint8_t)) 3514 goto error_out; 3515 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3516 pci_write_config_byte(pdev, where, 3517 (uint8_t)value); 3518 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3519 rc = pci_read_config_byte(pdev, where, &u8val); 3520 if (!rc) { 3521 u8val |= (uint8_t)value; 3522 pci_write_config_byte(pdev, where, 3523 u8val); 3524 } 3525 } 3526 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3527 rc = pci_read_config_byte(pdev, where, &u8val); 3528 if (!rc) { 3529 u8val &= (uint8_t)(~value); 3530 pci_write_config_byte(pdev, where, 3531 u8val); 3532 } 3533 } 3534 } 3535 if (count == sizeof(uint16_t)) { 3536 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3537 goto error_out; 3538 if (where % sizeof(uint16_t)) 3539 goto error_out; 3540 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3541 pci_write_config_word(pdev, where, 3542 (uint16_t)value); 3543 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3544 rc = pci_read_config_word(pdev, where, &u16val); 3545 if (!rc) { 3546 u16val |= (uint16_t)value; 3547 pci_write_config_word(pdev, where, 3548 u16val); 3549 } 3550 } 3551 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3552 rc = pci_read_config_word(pdev, where, &u16val); 3553 if (!rc) { 3554 u16val &= (uint16_t)(~value); 3555 pci_write_config_word(pdev, where, 3556 u16val); 3557 } 3558 } 3559 } 3560 if (count == sizeof(uint32_t)) { 3561 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3562 goto error_out; 3563 if (where % sizeof(uint32_t)) 3564 goto error_out; 3565 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3566 pci_write_config_dword(pdev, where, value); 3567 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3568 rc = pci_read_config_dword(pdev, where, 3569 &u32val); 3570 if (!rc) { 3571 u32val |= value; 3572 pci_write_config_dword(pdev, where, 3573 u32val); 3574 } 3575 } 3576 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3577 rc = pci_read_config_dword(pdev, where, 3578 &u32val); 3579 if (!rc) { 3580 u32val &= ~value; 3581 pci_write_config_dword(pdev, where, 3582 u32val); 3583 } 3584 } 3585 } 3586 } else 3587 /* All other opecodes are illegal for now */ 3588 goto error_out; 3589 3590 return nbytes; 3591error_out: 3592 memset(&idiag, 0, sizeof(idiag)); 3593 return -EINVAL; 3594} 3595 3596/** 3597 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 3598 * @file: The file pointer to read from. 3599 * @buf: The buffer to copy the data to. 3600 * @nbytes: The number of bytes to read. 3601 * @ppos: The position in the file to start reading from. 3602 * 3603 * Description: 3604 * This routine reads data from the @phba pci bar memory mapped space 3605 * according to the idiag command, and copies to user @buf. 3606 * 3607 * Returns: 3608 * This function returns the amount of data that was read (this could be less 3609 * than @nbytes if the end of the file was reached) or a negative error value. 3610 **/ 3611static ssize_t 3612lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 3613 loff_t *ppos) 3614{ 3615 struct lpfc_debug *debug = file->private_data; 3616 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3617 int offset_label, offset, offset_run, len = 0, index; 3618 int bar_num, acc_range, bar_size; 3619 char *pbuffer; 3620 void __iomem *mem_mapped_bar; 3621 uint32_t if_type; 3622 struct pci_dev *pdev; 3623 uint32_t u32val; 3624 3625 pdev = phba->pcidev; 3626 if (!pdev) 3627 return 0; 3628 3629 /* This is a user read operation */ 3630 debug->op = LPFC_IDIAG_OP_RD; 3631 3632 if (!debug->buffer) 3633 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 3634 if (!debug->buffer) 3635 return 0; 3636 pbuffer = debug->buffer; 3637 3638 if (*ppos) 3639 return 0; 3640 3641 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3642 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3643 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3644 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3645 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3646 } else 3647 return 0; 3648 3649 if (acc_range == 0) 3650 return 0; 3651 3652 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3653 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3654 if (bar_num == IDIAG_BARACC_BAR_0) 3655 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3656 else if (bar_num == IDIAG_BARACC_BAR_1) 3657 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3658 else if (bar_num == IDIAG_BARACC_BAR_2) 3659 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3660 else 3661 return 0; 3662 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3663 if (bar_num == IDIAG_BARACC_BAR_0) 3664 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3665 else 3666 return 0; 3667 } else 3668 return 0; 3669 3670 /* Read single PCI bar space register */ 3671 if (acc_range == SINGLE_WORD) { 3672 offset_run = offset; 3673 u32val = readl(mem_mapped_bar + offset_run); 3674 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3675 "%05x: %08x\n", offset_run, u32val); 3676 } else 3677 goto baracc_browse; 3678 3679 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3680 3681baracc_browse: 3682 3683 /* Browse all PCI bar space registers */ 3684 offset_label = idiag.offset.last_rd; 3685 offset_run = offset_label; 3686 3687 /* Read PCI bar memory mapped space */ 3688 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3689 "%05x: ", offset_label); 3690 index = LPFC_PCI_BAR_RD_SIZE; 3691 while (index > 0) { 3692 u32val = readl(mem_mapped_bar + offset_run); 3693 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3694 "%08x ", u32val); 3695 offset_run += sizeof(uint32_t); 3696 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3697 if (offset_run >= bar_size) { 3698 len += scnprintf(pbuffer+len, 3699 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3700 break; 3701 } 3702 } else { 3703 if (offset_run >= offset + 3704 (acc_range * sizeof(uint32_t))) { 3705 len += scnprintf(pbuffer+len, 3706 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3707 break; 3708 } 3709 } 3710 index -= sizeof(uint32_t); 3711 if (!index) 3712 len += scnprintf(pbuffer+len, 3713 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3714 else if (!(index % (8 * sizeof(uint32_t)))) { 3715 offset_label += (8 * sizeof(uint32_t)); 3716 len += scnprintf(pbuffer+len, 3717 LPFC_PCI_BAR_RD_BUF_SIZE-len, 3718 "\n%05x: ", offset_label); 3719 } 3720 } 3721 3722 /* Set up the offset for next portion of pci bar read */ 3723 if (index == 0) { 3724 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 3725 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3726 if (idiag.offset.last_rd >= bar_size) 3727 idiag.offset.last_rd = 0; 3728 } else { 3729 if (offset_run >= offset + 3730 (acc_range * sizeof(uint32_t))) 3731 idiag.offset.last_rd = offset; 3732 } 3733 } else { 3734 if (acc_range == LPFC_PCI_BAR_BROWSE) 3735 idiag.offset.last_rd = 0; 3736 else 3737 idiag.offset.last_rd = offset; 3738 } 3739 3740 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3741} 3742 3743/** 3744 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 3745 * @file: The file pointer to read from. 3746 * @buf: The buffer to copy the user data from. 3747 * @nbytes: The number of bytes to get. 3748 * @ppos: The position in the file to start reading from. 3749 * 3750 * This routine get the debugfs idiag command struct from user space and 3751 * then perform the syntax check for PCI bar memory mapped space read or 3752 * write command accordingly. In the case of PCI bar memory mapped space 3753 * read command, it sets up the command in the idiag command struct for 3754 * the debugfs read operation. In the case of PCI bar memorpy mapped space 3755 * write operation, it executes the write operation into the PCI bar memory 3756 * mapped space accordingly. 3757 * 3758 * It returns the @nbytges passing in from debugfs user space when successful. 3759 * In case of error conditions, it returns proper error code back to the user 3760 * space. 3761 */ 3762static ssize_t 3763lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 3764 size_t nbytes, loff_t *ppos) 3765{ 3766 struct lpfc_debug *debug = file->private_data; 3767 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3768 uint32_t bar_num, bar_size, offset, value, acc_range; 3769 struct pci_dev *pdev; 3770 void __iomem *mem_mapped_bar; 3771 uint32_t if_type; 3772 uint32_t u32val; 3773 int rc; 3774 3775 pdev = phba->pcidev; 3776 if (!pdev) 3777 return -EFAULT; 3778 3779 /* This is a user write operation */ 3780 debug->op = LPFC_IDIAG_OP_WR; 3781 3782 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3783 if (rc < 0) 3784 return rc; 3785 3786 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3787 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3788 3789 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3790 if ((bar_num != IDIAG_BARACC_BAR_0) && 3791 (bar_num != IDIAG_BARACC_BAR_1) && 3792 (bar_num != IDIAG_BARACC_BAR_2)) 3793 goto error_out; 3794 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3795 if (bar_num != IDIAG_BARACC_BAR_0) 3796 goto error_out; 3797 } else 3798 goto error_out; 3799 3800 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3801 if (bar_num == IDIAG_BARACC_BAR_0) { 3802 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3803 LPFC_PCI_IF0_BAR0_SIZE; 3804 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3805 } else if (bar_num == IDIAG_BARACC_BAR_1) { 3806 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3807 LPFC_PCI_IF0_BAR1_SIZE; 3808 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3809 } else if (bar_num == IDIAG_BARACC_BAR_2) { 3810 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3811 LPFC_PCI_IF0_BAR2_SIZE; 3812 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3813 } else 3814 goto error_out; 3815 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3816 if (bar_num == IDIAG_BARACC_BAR_0) { 3817 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3818 LPFC_PCI_IF2_BAR0_SIZE; 3819 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3820 } else 3821 goto error_out; 3822 } else 3823 goto error_out; 3824 3825 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3826 if (offset % sizeof(uint32_t)) 3827 goto error_out; 3828 3829 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3830 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3831 /* Sanity check on PCI config read command line arguments */ 3832 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3833 goto error_out; 3834 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3835 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3836 if (offset > bar_size - sizeof(uint32_t)) 3837 goto error_out; 3838 /* Starting offset to browse */ 3839 idiag.offset.last_rd = offset; 3840 } else if (acc_range > SINGLE_WORD) { 3841 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3842 goto error_out; 3843 /* Starting offset to browse */ 3844 idiag.offset.last_rd = offset; 3845 } else if (acc_range != SINGLE_WORD) 3846 goto error_out; 3847 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3848 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3849 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3850 /* Sanity check on PCI bar write command line arguments */ 3851 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3852 goto error_out; 3853 /* Write command to PCI bar space, read-modify-write */ 3854 acc_range = SINGLE_WORD; 3855 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3856 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3857 writel(value, mem_mapped_bar + offset); 3858 readl(mem_mapped_bar + offset); 3859 } 3860 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3861 u32val = readl(mem_mapped_bar + offset); 3862 u32val |= value; 3863 writel(u32val, mem_mapped_bar + offset); 3864 readl(mem_mapped_bar + offset); 3865 } 3866 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3867 u32val = readl(mem_mapped_bar + offset); 3868 u32val &= ~value; 3869 writel(u32val, mem_mapped_bar + offset); 3870 readl(mem_mapped_bar + offset); 3871 } 3872 } else 3873 /* All other opecodes are illegal for now */ 3874 goto error_out; 3875 3876 return nbytes; 3877error_out: 3878 memset(&idiag, 0, sizeof(idiag)); 3879 return -EINVAL; 3880} 3881 3882static int 3883__lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3884 char *pbuffer, int len) 3885{ 3886 if (!qp) 3887 return len; 3888 3889 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3890 "\t\t%s WQ info: ", wqtype); 3891 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3892 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3893 qp->assoc_qid, qp->q_cnt_1, 3894 (unsigned long long)qp->q_cnt_4); 3895 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3896 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3897 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]", 3898 qp->queue_id, qp->entry_count, 3899 qp->entry_size, qp->host_index, 3900 qp->hba_index, qp->notify_interval); 3901 len += scnprintf(pbuffer + len, 3902 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3903 return len; 3904} 3905 3906static int 3907lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3908 int *len, int max_cnt, int cq_id) 3909{ 3910 struct lpfc_queue *qp; 3911 int qidx; 3912 3913 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 3914 qp = phba->sli4_hba.hdwq[qidx].io_wq; 3915 if (qp->assoc_qid != cq_id) 3916 continue; 3917 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3918 if (*len >= max_cnt) 3919 return 1; 3920 } 3921 return 0; 3922} 3923 3924static int 3925__lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3926 char *pbuffer, int len) 3927{ 3928 if (!qp) 3929 return len; 3930 3931 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3932 "\t%s CQ info: ", cqtype); 3933 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3934 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3935 "xabt:x%x wq:x%llx]\n", 3936 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3937 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3938 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3939 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3940 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d]", 3941 qp->queue_id, qp->entry_count, 3942 qp->entry_size, qp->host_index, 3943 qp->notify_interval, qp->max_proc_limit); 3944 3945 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3946 "\n"); 3947 3948 return len; 3949} 3950 3951static int 3952__lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3953 char *rqtype, char *pbuffer, int len) 3954{ 3955 if (!qp || !datqp) 3956 return len; 3957 3958 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3959 "\t\t%s RQ info: ", rqtype); 3960 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3961 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3962 "posted:x%x rcv:x%llx]\n", 3963 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3964 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3965 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3966 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3967 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3968 qp->queue_id, qp->entry_count, qp->entry_size, 3969 qp->host_index, qp->hba_index, qp->notify_interval); 3970 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3971 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3972 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3973 datqp->queue_id, datqp->entry_count, 3974 datqp->entry_size, datqp->host_index, 3975 datqp->hba_index, datqp->notify_interval); 3976 return len; 3977} 3978 3979static int 3980lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3981 int *len, int max_cnt, int eqidx, int eq_id) 3982{ 3983 struct lpfc_queue *qp; 3984 int rc; 3985 3986 qp = phba->sli4_hba.hdwq[eqidx].io_cq; 3987 3988 *len = __lpfc_idiag_print_cq(qp, "IO", pbuffer, *len); 3989 3990 /* Reset max counter */ 3991 qp->CQ_max_cqe = 0; 3992 3993 if (*len >= max_cnt) 3994 return 1; 3995 3996 rc = lpfc_idiag_wqs_for_cq(phba, "IO", pbuffer, len, 3997 max_cnt, qp->queue_id); 3998 if (rc) 3999 return 1; 4000 4001 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) { 4002 /* NVMET CQset */ 4003 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 4004 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 4005 4006 /* Reset max counter */ 4007 qp->CQ_max_cqe = 0; 4008 4009 if (*len >= max_cnt) 4010 return 1; 4011 4012 /* RQ header */ 4013 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 4014 *len = __lpfc_idiag_print_rqpair(qp, 4015 phba->sli4_hba.nvmet_mrq_data[eqidx], 4016 "NVMET MRQ", pbuffer, *len); 4017 4018 if (*len >= max_cnt) 4019 return 1; 4020 } 4021 4022 return 0; 4023} 4024 4025static int 4026__lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 4027 char *pbuffer, int len) 4028{ 4029 if (!qp) 4030 return len; 4031 4032 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4033 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 4034 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n", 4035 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 4036 (unsigned long long)qp->q_cnt_4, qp->q_mode); 4037 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4038 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 4039 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]", 4040 qp->queue_id, qp->entry_count, qp->entry_size, 4041 qp->host_index, qp->notify_interval, 4042 qp->max_proc_limit, qp->chann); 4043 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4044 "\n"); 4045 4046 return len; 4047} 4048 4049/** 4050 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 4051 * @file: The file pointer to read from. 4052 * @buf: The buffer to copy the data to. 4053 * @nbytes: The number of bytes to read. 4054 * @ppos: The position in the file to start reading from. 4055 * 4056 * Description: 4057 * This routine reads data from the @phba SLI4 PCI function queue information, 4058 * and copies to user @buf. 4059 * This routine only returns 1 EQs worth of information. It remembers the last 4060 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 4061 * retrieve all EQs allocated for the phba. 4062 * 4063 * Returns: 4064 * This function returns the amount of data that was read (this could be less 4065 * than @nbytes if the end of the file was reached) or a negative error value. 4066 **/ 4067static ssize_t 4068lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 4069 loff_t *ppos) 4070{ 4071 struct lpfc_debug *debug = file->private_data; 4072 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4073 char *pbuffer; 4074 int max_cnt, rc, x, len = 0; 4075 struct lpfc_queue *qp = NULL; 4076 4077 if (!debug->buffer) 4078 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 4079 if (!debug->buffer) 4080 return 0; 4081 pbuffer = debug->buffer; 4082 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 4083 4084 if (*ppos) 4085 return 0; 4086 4087 spin_lock_irq(&phba->hbalock); 4088 4089 /* Fast-path event queue */ 4090 if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) { 4091 4092 x = phba->lpfc_idiag_last_eq; 4093 phba->lpfc_idiag_last_eq++; 4094 if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue) 4095 phba->lpfc_idiag_last_eq = 0; 4096 4097 len += scnprintf(pbuffer + len, 4098 LPFC_QUE_INFO_GET_BUF_SIZE - len, 4099 "HDWQ %d out of %d HBA HDWQs\n", 4100 x, phba->cfg_hdw_queue); 4101 4102 /* Fast-path EQ */ 4103 qp = phba->sli4_hba.hdwq[x].hba_eq; 4104 if (!qp) 4105 goto out; 4106 4107 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 4108 4109 /* Reset max counter */ 4110 qp->EQ_max_eqe = 0; 4111 4112 if (len >= max_cnt) 4113 goto too_big; 4114 4115 /* will dump both fcp and nvme cqs/wqs for the eq */ 4116 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 4117 max_cnt, x, qp->queue_id); 4118 if (rc) 4119 goto too_big; 4120 4121 /* Only EQ 0 has slow path CQs configured */ 4122 if (x) 4123 goto out; 4124 4125 /* Slow-path mailbox CQ */ 4126 qp = phba->sli4_hba.mbx_cq; 4127 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 4128 if (len >= max_cnt) 4129 goto too_big; 4130 4131 /* Slow-path MBOX MQ */ 4132 qp = phba->sli4_hba.mbx_wq; 4133 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 4134 if (len >= max_cnt) 4135 goto too_big; 4136 4137 /* Slow-path ELS response CQ */ 4138 qp = phba->sli4_hba.els_cq; 4139 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 4140 /* Reset max counter */ 4141 if (qp) 4142 qp->CQ_max_cqe = 0; 4143 if (len >= max_cnt) 4144 goto too_big; 4145 4146 /* Slow-path ELS WQ */ 4147 qp = phba->sli4_hba.els_wq; 4148 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 4149 if (len >= max_cnt) 4150 goto too_big; 4151 4152 qp = phba->sli4_hba.hdr_rq; 4153 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 4154 "ELS RQpair", pbuffer, len); 4155 if (len >= max_cnt) 4156 goto too_big; 4157 4158 /* Slow-path NVME LS response CQ */ 4159 qp = phba->sli4_hba.nvmels_cq; 4160 len = __lpfc_idiag_print_cq(qp, "NVME LS", 4161 pbuffer, len); 4162 /* Reset max counter */ 4163 if (qp) 4164 qp->CQ_max_cqe = 0; 4165 if (len >= max_cnt) 4166 goto too_big; 4167 4168 /* Slow-path NVME LS WQ */ 4169 qp = phba->sli4_hba.nvmels_wq; 4170 len = __lpfc_idiag_print_wq(qp, "NVME LS", 4171 pbuffer, len); 4172 if (len >= max_cnt) 4173 goto too_big; 4174 4175 goto out; 4176 } 4177 4178 spin_unlock_irq(&phba->hbalock); 4179 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4180 4181too_big: 4182 len += scnprintf(pbuffer + len, 4183 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 4184out: 4185 spin_unlock_irq(&phba->hbalock); 4186 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4187} 4188 4189/** 4190 * lpfc_idiag_que_param_check - queue access command parameter sanity check 4191 * @q: The pointer to queue structure. 4192 * @index: The index into a queue entry. 4193 * @count: The number of queue entries to access. 4194 * 4195 * Description: 4196 * The routine performs sanity check on device queue access method commands. 4197 * 4198 * Returns: 4199 * This function returns -EINVAL when fails the sanity check, otherwise, it 4200 * returns 0. 4201 **/ 4202static int 4203lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 4204{ 4205 /* Only support single entry read or browsing */ 4206 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 4207 return -EINVAL; 4208 if (index > q->entry_count - 1) 4209 return -EINVAL; 4210 return 0; 4211} 4212 4213/** 4214 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 4215 * @pbuffer: The pointer to buffer to copy the read data into. 4216 * @len: Length of the buffer. 4217 * @pque: The pointer to the queue to be read. 4218 * @index: The index into the queue entry. 4219 * 4220 * Description: 4221 * This routine reads out a single entry from the given queue's index location 4222 * and copies it into the buffer provided. 4223 * 4224 * Returns: 4225 * This function returns 0 when it fails, otherwise, it returns the length of 4226 * the data read into the buffer provided. 4227 **/ 4228static int 4229lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 4230 uint32_t index) 4231{ 4232 int offset, esize; 4233 uint32_t *pentry; 4234 4235 if (!pbuffer || !pque) 4236 return 0; 4237 4238 esize = pque->entry_size; 4239 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4240 "QE-INDEX[%04d]:\n", index); 4241 4242 offset = 0; 4243 pentry = lpfc_sli4_qe(pque, index); 4244 while (esize > 0) { 4245 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4246 "%08x ", *pentry); 4247 pentry++; 4248 offset += sizeof(uint32_t); 4249 esize -= sizeof(uint32_t); 4250 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 4251 len += scnprintf(pbuffer+len, 4252 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4253 } 4254 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4255 4256 return len; 4257} 4258 4259/** 4260 * lpfc_idiag_queacc_read - idiag debugfs read port queue 4261 * @file: The file pointer to read from. 4262 * @buf: The buffer to copy the data to. 4263 * @nbytes: The number of bytes to read. 4264 * @ppos: The position in the file to start reading from. 4265 * 4266 * Description: 4267 * This routine reads data from the @phba device queue memory according to the 4268 * idiag command, and copies to user @buf. Depending on the queue dump read 4269 * command setup, it does either a single queue entry read or browing through 4270 * all entries of the queue. 4271 * 4272 * Returns: 4273 * This function returns the amount of data that was read (this could be less 4274 * than @nbytes if the end of the file was reached) or a negative error value. 4275 **/ 4276static ssize_t 4277lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 4278 loff_t *ppos) 4279{ 4280 struct lpfc_debug *debug = file->private_data; 4281 uint32_t last_index, index, count; 4282 struct lpfc_queue *pque = NULL; 4283 char *pbuffer; 4284 int len = 0; 4285 4286 /* This is a user read operation */ 4287 debug->op = LPFC_IDIAG_OP_RD; 4288 4289 if (!debug->buffer) 4290 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 4291 if (!debug->buffer) 4292 return 0; 4293 pbuffer = debug->buffer; 4294 4295 if (*ppos) 4296 return 0; 4297 4298 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4299 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4300 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4301 pque = (struct lpfc_queue *)idiag.ptr_private; 4302 } else 4303 return 0; 4304 4305 /* Browse the queue starting from index */ 4306 if (count == LPFC_QUE_ACC_BROWSE) 4307 goto que_browse; 4308 4309 /* Read a single entry from the queue */ 4310 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4311 4312 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4313 4314que_browse: 4315 4316 /* Browse all entries from the queue */ 4317 last_index = idiag.offset.last_rd; 4318 index = last_index; 4319 4320 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 4321 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4322 index++; 4323 if (index > pque->entry_count - 1) 4324 break; 4325 } 4326 4327 /* Set up the offset for next portion of pci cfg read */ 4328 if (index > pque->entry_count - 1) 4329 index = 0; 4330 idiag.offset.last_rd = index; 4331 4332 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4333} 4334 4335/** 4336 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 4337 * @file: The file pointer to read from. 4338 * @buf: The buffer to copy the user data from. 4339 * @nbytes: The number of bytes to get. 4340 * @ppos: The position in the file to start reading from. 4341 * 4342 * This routine get the debugfs idiag command struct from user space and then 4343 * perform the syntax check for port queue read (dump) or write (set) command 4344 * accordingly. In the case of port queue read command, it sets up the command 4345 * in the idiag command struct for the following debugfs read operation. In 4346 * the case of port queue write operation, it executes the write operation 4347 * into the port queue entry accordingly. 4348 * 4349 * It returns the @nbytges passing in from debugfs user space when successful. 4350 * In case of error conditions, it returns proper error code back to the user 4351 * space. 4352 **/ 4353static ssize_t 4354lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 4355 size_t nbytes, loff_t *ppos) 4356{ 4357 struct lpfc_debug *debug = file->private_data; 4358 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4359 uint32_t qidx, quetp, queid, index, count, offset, value; 4360 uint32_t *pentry; 4361 struct lpfc_queue *pque, *qp; 4362 int rc; 4363 4364 /* This is a user write operation */ 4365 debug->op = LPFC_IDIAG_OP_WR; 4366 4367 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4368 if (rc < 0) 4369 return rc; 4370 4371 /* Get and sanity check on command feilds */ 4372 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 4373 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 4374 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4375 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4376 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 4377 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 4378 4379 /* Sanity check on command line arguments */ 4380 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4381 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4382 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4383 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 4384 goto error_out; 4385 if (count != 1) 4386 goto error_out; 4387 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4388 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 4389 goto error_out; 4390 } else 4391 goto error_out; 4392 4393 switch (quetp) { 4394 case LPFC_IDIAG_EQ: 4395 /* HBA event queue */ 4396 if (phba->sli4_hba.hdwq) { 4397 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4398 qp = phba->sli4_hba.hdwq[qidx].hba_eq; 4399 if (qp && qp->queue_id == queid) { 4400 /* Sanity check */ 4401 rc = lpfc_idiag_que_param_check(qp, 4402 index, count); 4403 if (rc) 4404 goto error_out; 4405 idiag.ptr_private = qp; 4406 goto pass_check; 4407 } 4408 } 4409 } 4410 goto error_out; 4411 4412 case LPFC_IDIAG_CQ: 4413 /* MBX complete queue */ 4414 if (phba->sli4_hba.mbx_cq && 4415 phba->sli4_hba.mbx_cq->queue_id == queid) { 4416 /* Sanity check */ 4417 rc = lpfc_idiag_que_param_check( 4418 phba->sli4_hba.mbx_cq, index, count); 4419 if (rc) 4420 goto error_out; 4421 idiag.ptr_private = phba->sli4_hba.mbx_cq; 4422 goto pass_check; 4423 } 4424 /* ELS complete queue */ 4425 if (phba->sli4_hba.els_cq && 4426 phba->sli4_hba.els_cq->queue_id == queid) { 4427 /* Sanity check */ 4428 rc = lpfc_idiag_que_param_check( 4429 phba->sli4_hba.els_cq, index, count); 4430 if (rc) 4431 goto error_out; 4432 idiag.ptr_private = phba->sli4_hba.els_cq; 4433 goto pass_check; 4434 } 4435 /* NVME LS complete queue */ 4436 if (phba->sli4_hba.nvmels_cq && 4437 phba->sli4_hba.nvmels_cq->queue_id == queid) { 4438 /* Sanity check */ 4439 rc = lpfc_idiag_que_param_check( 4440 phba->sli4_hba.nvmels_cq, index, count); 4441 if (rc) 4442 goto error_out; 4443 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 4444 goto pass_check; 4445 } 4446 /* FCP complete queue */ 4447 if (phba->sli4_hba.hdwq) { 4448 for (qidx = 0; qidx < phba->cfg_hdw_queue; 4449 qidx++) { 4450 qp = phba->sli4_hba.hdwq[qidx].io_cq; 4451 if (qp && qp->queue_id == queid) { 4452 /* Sanity check */ 4453 rc = lpfc_idiag_que_param_check( 4454 qp, index, count); 4455 if (rc) 4456 goto error_out; 4457 idiag.ptr_private = qp; 4458 goto pass_check; 4459 } 4460 } 4461 } 4462 goto error_out; 4463 4464 case LPFC_IDIAG_MQ: 4465 /* MBX work queue */ 4466 if (phba->sli4_hba.mbx_wq && 4467 phba->sli4_hba.mbx_wq->queue_id == queid) { 4468 /* Sanity check */ 4469 rc = lpfc_idiag_que_param_check( 4470 phba->sli4_hba.mbx_wq, index, count); 4471 if (rc) 4472 goto error_out; 4473 idiag.ptr_private = phba->sli4_hba.mbx_wq; 4474 goto pass_check; 4475 } 4476 goto error_out; 4477 4478 case LPFC_IDIAG_WQ: 4479 /* ELS work queue */ 4480 if (phba->sli4_hba.els_wq && 4481 phba->sli4_hba.els_wq->queue_id == queid) { 4482 /* Sanity check */ 4483 rc = lpfc_idiag_que_param_check( 4484 phba->sli4_hba.els_wq, index, count); 4485 if (rc) 4486 goto error_out; 4487 idiag.ptr_private = phba->sli4_hba.els_wq; 4488 goto pass_check; 4489 } 4490 /* NVME LS work queue */ 4491 if (phba->sli4_hba.nvmels_wq && 4492 phba->sli4_hba.nvmels_wq->queue_id == queid) { 4493 /* Sanity check */ 4494 rc = lpfc_idiag_que_param_check( 4495 phba->sli4_hba.nvmels_wq, index, count); 4496 if (rc) 4497 goto error_out; 4498 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 4499 goto pass_check; 4500 } 4501 4502 if (phba->sli4_hba.hdwq) { 4503 /* FCP/SCSI work queue */ 4504 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4505 qp = phba->sli4_hba.hdwq[qidx].io_wq; 4506 if (qp && qp->queue_id == queid) { 4507 /* Sanity check */ 4508 rc = lpfc_idiag_que_param_check( 4509 qp, index, count); 4510 if (rc) 4511 goto error_out; 4512 idiag.ptr_private = qp; 4513 goto pass_check; 4514 } 4515 } 4516 } 4517 goto error_out; 4518 4519 case LPFC_IDIAG_RQ: 4520 /* HDR queue */ 4521 if (phba->sli4_hba.hdr_rq && 4522 phba->sli4_hba.hdr_rq->queue_id == queid) { 4523 /* Sanity check */ 4524 rc = lpfc_idiag_que_param_check( 4525 phba->sli4_hba.hdr_rq, index, count); 4526 if (rc) 4527 goto error_out; 4528 idiag.ptr_private = phba->sli4_hba.hdr_rq; 4529 goto pass_check; 4530 } 4531 /* DAT queue */ 4532 if (phba->sli4_hba.dat_rq && 4533 phba->sli4_hba.dat_rq->queue_id == queid) { 4534 /* Sanity check */ 4535 rc = lpfc_idiag_que_param_check( 4536 phba->sli4_hba.dat_rq, index, count); 4537 if (rc) 4538 goto error_out; 4539 idiag.ptr_private = phba->sli4_hba.dat_rq; 4540 goto pass_check; 4541 } 4542 goto error_out; 4543 default: 4544 goto error_out; 4545 } 4546 4547pass_check: 4548 4549 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4550 if (count == LPFC_QUE_ACC_BROWSE) 4551 idiag.offset.last_rd = index; 4552 } 4553 4554 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4555 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4556 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4557 /* Additional sanity checks on write operation */ 4558 pque = (struct lpfc_queue *)idiag.ptr_private; 4559 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 4560 goto error_out; 4561 pentry = lpfc_sli4_qe(pque, index); 4562 pentry += offset; 4563 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 4564 *pentry = value; 4565 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 4566 *pentry |= value; 4567 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 4568 *pentry &= ~value; 4569 } 4570 return nbytes; 4571 4572error_out: 4573 /* Clean out command structure on command error out */ 4574 memset(&idiag, 0, sizeof(idiag)); 4575 return -EINVAL; 4576} 4577 4578/** 4579 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 4580 * @phba: The pointer to hba structure. 4581 * @pbuffer: The pointer to the buffer to copy the data to. 4582 * @len: The length of bytes to copied. 4583 * @drbregid: The id to doorbell registers. 4584 * 4585 * Description: 4586 * This routine reads a doorbell register and copies its content to the 4587 * user buffer pointed to by @pbuffer. 4588 * 4589 * Returns: 4590 * This function returns the amount of data that was copied into @pbuffer. 4591 **/ 4592static int 4593lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4594 int len, uint32_t drbregid) 4595{ 4596 4597 if (!pbuffer) 4598 return 0; 4599 4600 switch (drbregid) { 4601 case LPFC_DRB_EQ: 4602 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len, 4603 "EQ-DRB-REG: 0x%08x\n", 4604 readl(phba->sli4_hba.EQDBregaddr)); 4605 break; 4606 case LPFC_DRB_CQ: 4607 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len, 4608 "CQ-DRB-REG: 0x%08x\n", 4609 readl(phba->sli4_hba.CQDBregaddr)); 4610 break; 4611 case LPFC_DRB_MQ: 4612 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4613 "MQ-DRB-REG: 0x%08x\n", 4614 readl(phba->sli4_hba.MQDBregaddr)); 4615 break; 4616 case LPFC_DRB_WQ: 4617 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4618 "WQ-DRB-REG: 0x%08x\n", 4619 readl(phba->sli4_hba.WQDBregaddr)); 4620 break; 4621 case LPFC_DRB_RQ: 4622 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4623 "RQ-DRB-REG: 0x%08x\n", 4624 readl(phba->sli4_hba.RQDBregaddr)); 4625 break; 4626 default: 4627 break; 4628 } 4629 4630 return len; 4631} 4632 4633/** 4634 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 4635 * @file: The file pointer to read from. 4636 * @buf: The buffer to copy the data to. 4637 * @nbytes: The number of bytes to read. 4638 * @ppos: The position in the file to start reading from. 4639 * 4640 * Description: 4641 * This routine reads data from the @phba device doorbell register according 4642 * to the idiag command, and copies to user @buf. Depending on the doorbell 4643 * register read command setup, it does either a single doorbell register 4644 * read or dump all doorbell registers. 4645 * 4646 * Returns: 4647 * This function returns the amount of data that was read (this could be less 4648 * than @nbytes if the end of the file was reached) or a negative error value. 4649 **/ 4650static ssize_t 4651lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 4652 loff_t *ppos) 4653{ 4654 struct lpfc_debug *debug = file->private_data; 4655 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4656 uint32_t drb_reg_id, i; 4657 char *pbuffer; 4658 int len = 0; 4659 4660 /* This is a user read operation */ 4661 debug->op = LPFC_IDIAG_OP_RD; 4662 4663 if (!debug->buffer) 4664 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 4665 if (!debug->buffer) 4666 return 0; 4667 pbuffer = debug->buffer; 4668 4669 if (*ppos) 4670 return 0; 4671 4672 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 4673 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4674 else 4675 return 0; 4676 4677 if (drb_reg_id == LPFC_DRB_ACC_ALL) 4678 for (i = 1; i <= LPFC_DRB_MAX; i++) 4679 len = lpfc_idiag_drbacc_read_reg(phba, 4680 pbuffer, len, i); 4681 else 4682 len = lpfc_idiag_drbacc_read_reg(phba, 4683 pbuffer, len, drb_reg_id); 4684 4685 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4686} 4687 4688/** 4689 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 4690 * @file: The file pointer to read from. 4691 * @buf: The buffer to copy the user data from. 4692 * @nbytes: The number of bytes to get. 4693 * @ppos: The position in the file to start reading from. 4694 * 4695 * This routine get the debugfs idiag command struct from user space and then 4696 * perform the syntax check for port doorbell register read (dump) or write 4697 * (set) command accordingly. In the case of port queue read command, it sets 4698 * up the command in the idiag command struct for the following debugfs read 4699 * operation. In the case of port doorbell register write operation, it 4700 * executes the write operation into the port doorbell register accordingly. 4701 * 4702 * It returns the @nbytges passing in from debugfs user space when successful. 4703 * In case of error conditions, it returns proper error code back to the user 4704 * space. 4705 **/ 4706static ssize_t 4707lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 4708 size_t nbytes, loff_t *ppos) 4709{ 4710 struct lpfc_debug *debug = file->private_data; 4711 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4712 uint32_t drb_reg_id, value, reg_val = 0; 4713 void __iomem *drb_reg; 4714 int rc; 4715 4716 /* This is a user write operation */ 4717 debug->op = LPFC_IDIAG_OP_WR; 4718 4719 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4720 if (rc < 0) 4721 return rc; 4722 4723 /* Sanity check on command line arguments */ 4724 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4725 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4726 4727 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4728 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4729 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4730 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4731 goto error_out; 4732 if (drb_reg_id > LPFC_DRB_MAX) 4733 goto error_out; 4734 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4735 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4736 goto error_out; 4737 if ((drb_reg_id > LPFC_DRB_MAX) && 4738 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4739 goto error_out; 4740 } else 4741 goto error_out; 4742 4743 /* Perform the write access operation */ 4744 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4745 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4746 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4747 switch (drb_reg_id) { 4748 case LPFC_DRB_EQ: 4749 drb_reg = phba->sli4_hba.EQDBregaddr; 4750 break; 4751 case LPFC_DRB_CQ: 4752 drb_reg = phba->sli4_hba.CQDBregaddr; 4753 break; 4754 case LPFC_DRB_MQ: 4755 drb_reg = phba->sli4_hba.MQDBregaddr; 4756 break; 4757 case LPFC_DRB_WQ: 4758 drb_reg = phba->sli4_hba.WQDBregaddr; 4759 break; 4760 case LPFC_DRB_RQ: 4761 drb_reg = phba->sli4_hba.RQDBregaddr; 4762 break; 4763 default: 4764 goto error_out; 4765 } 4766 4767 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4768 reg_val = value; 4769 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4770 reg_val = readl(drb_reg); 4771 reg_val |= value; 4772 } 4773 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4774 reg_val = readl(drb_reg); 4775 reg_val &= ~value; 4776 } 4777 writel(reg_val, drb_reg); 4778 readl(drb_reg); /* flush */ 4779 } 4780 return nbytes; 4781 4782error_out: 4783 /* Clean out command structure on command error out */ 4784 memset(&idiag, 0, sizeof(idiag)); 4785 return -EINVAL; 4786} 4787 4788/** 4789 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4790 * @phba: The pointer to hba structure. 4791 * @pbuffer: The pointer to the buffer to copy the data to. 4792 * @len: The length of bytes to copied. 4793 * @ctlregid: The id to doorbell registers. 4794 * 4795 * Description: 4796 * This routine reads a control register and copies its content to the 4797 * user buffer pointed to by @pbuffer. 4798 * 4799 * Returns: 4800 * This function returns the amount of data that was copied into @pbuffer. 4801 **/ 4802static int 4803lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4804 int len, uint32_t ctlregid) 4805{ 4806 4807 if (!pbuffer) 4808 return 0; 4809 4810 switch (ctlregid) { 4811 case LPFC_CTL_PORT_SEM: 4812 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4813 "Port SemReg: 0x%08x\n", 4814 readl(phba->sli4_hba.conf_regs_memmap_p + 4815 LPFC_CTL_PORT_SEM_OFFSET)); 4816 break; 4817 case LPFC_CTL_PORT_STA: 4818 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4819 "Port StaReg: 0x%08x\n", 4820 readl(phba->sli4_hba.conf_regs_memmap_p + 4821 LPFC_CTL_PORT_STA_OFFSET)); 4822 break; 4823 case LPFC_CTL_PORT_CTL: 4824 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4825 "Port CtlReg: 0x%08x\n", 4826 readl(phba->sli4_hba.conf_regs_memmap_p + 4827 LPFC_CTL_PORT_CTL_OFFSET)); 4828 break; 4829 case LPFC_CTL_PORT_ER1: 4830 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4831 "Port Er1Reg: 0x%08x\n", 4832 readl(phba->sli4_hba.conf_regs_memmap_p + 4833 LPFC_CTL_PORT_ER1_OFFSET)); 4834 break; 4835 case LPFC_CTL_PORT_ER2: 4836 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4837 "Port Er2Reg: 0x%08x\n", 4838 readl(phba->sli4_hba.conf_regs_memmap_p + 4839 LPFC_CTL_PORT_ER2_OFFSET)); 4840 break; 4841 case LPFC_CTL_PDEV_CTL: 4842 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4843 "PDev CtlReg: 0x%08x\n", 4844 readl(phba->sli4_hba.conf_regs_memmap_p + 4845 LPFC_CTL_PDEV_CTL_OFFSET)); 4846 break; 4847 default: 4848 break; 4849 } 4850 return len; 4851} 4852 4853/** 4854 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4855 * @file: The file pointer to read from. 4856 * @buf: The buffer to copy the data to. 4857 * @nbytes: The number of bytes to read. 4858 * @ppos: The position in the file to start reading from. 4859 * 4860 * Description: 4861 * This routine reads data from the @phba port and device registers according 4862 * to the idiag command, and copies to user @buf. 4863 * 4864 * Returns: 4865 * This function returns the amount of data that was read (this could be less 4866 * than @nbytes if the end of the file was reached) or a negative error value. 4867 **/ 4868static ssize_t 4869lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4870 loff_t *ppos) 4871{ 4872 struct lpfc_debug *debug = file->private_data; 4873 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4874 uint32_t ctl_reg_id, i; 4875 char *pbuffer; 4876 int len = 0; 4877 4878 /* This is a user read operation */ 4879 debug->op = LPFC_IDIAG_OP_RD; 4880 4881 if (!debug->buffer) 4882 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4883 if (!debug->buffer) 4884 return 0; 4885 pbuffer = debug->buffer; 4886 4887 if (*ppos) 4888 return 0; 4889 4890 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4891 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4892 else 4893 return 0; 4894 4895 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4896 for (i = 1; i <= LPFC_CTL_MAX; i++) 4897 len = lpfc_idiag_ctlacc_read_reg(phba, 4898 pbuffer, len, i); 4899 else 4900 len = lpfc_idiag_ctlacc_read_reg(phba, 4901 pbuffer, len, ctl_reg_id); 4902 4903 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4904} 4905 4906/** 4907 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4908 * @file: The file pointer to read from. 4909 * @buf: The buffer to copy the user data from. 4910 * @nbytes: The number of bytes to get. 4911 * @ppos: The position in the file to start reading from. 4912 * 4913 * This routine get the debugfs idiag command struct from user space and then 4914 * perform the syntax check for port and device control register read (dump) 4915 * or write (set) command accordingly. 4916 * 4917 * It returns the @nbytges passing in from debugfs user space when successful. 4918 * In case of error conditions, it returns proper error code back to the user 4919 * space. 4920 **/ 4921static ssize_t 4922lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4923 size_t nbytes, loff_t *ppos) 4924{ 4925 struct lpfc_debug *debug = file->private_data; 4926 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4927 uint32_t ctl_reg_id, value, reg_val = 0; 4928 void __iomem *ctl_reg; 4929 int rc; 4930 4931 /* This is a user write operation */ 4932 debug->op = LPFC_IDIAG_OP_WR; 4933 4934 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4935 if (rc < 0) 4936 return rc; 4937 4938 /* Sanity check on command line arguments */ 4939 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4940 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4941 4942 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4943 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4944 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4945 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4946 goto error_out; 4947 if (ctl_reg_id > LPFC_CTL_MAX) 4948 goto error_out; 4949 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4950 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4951 goto error_out; 4952 if ((ctl_reg_id > LPFC_CTL_MAX) && 4953 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4954 goto error_out; 4955 } else 4956 goto error_out; 4957 4958 /* Perform the write access operation */ 4959 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4960 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4961 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4962 switch (ctl_reg_id) { 4963 case LPFC_CTL_PORT_SEM: 4964 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4965 LPFC_CTL_PORT_SEM_OFFSET; 4966 break; 4967 case LPFC_CTL_PORT_STA: 4968 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4969 LPFC_CTL_PORT_STA_OFFSET; 4970 break; 4971 case LPFC_CTL_PORT_CTL: 4972 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4973 LPFC_CTL_PORT_CTL_OFFSET; 4974 break; 4975 case LPFC_CTL_PORT_ER1: 4976 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4977 LPFC_CTL_PORT_ER1_OFFSET; 4978 break; 4979 case LPFC_CTL_PORT_ER2: 4980 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4981 LPFC_CTL_PORT_ER2_OFFSET; 4982 break; 4983 case LPFC_CTL_PDEV_CTL: 4984 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4985 LPFC_CTL_PDEV_CTL_OFFSET; 4986 break; 4987 default: 4988 goto error_out; 4989 } 4990 4991 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4992 reg_val = value; 4993 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4994 reg_val = readl(ctl_reg); 4995 reg_val |= value; 4996 } 4997 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4998 reg_val = readl(ctl_reg); 4999 reg_val &= ~value; 5000 } 5001 writel(reg_val, ctl_reg); 5002 readl(ctl_reg); /* flush */ 5003 } 5004 return nbytes; 5005 5006error_out: 5007 /* Clean out command structure on command error out */ 5008 memset(&idiag, 0, sizeof(idiag)); 5009 return -EINVAL; 5010} 5011 5012/** 5013 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 5014 * @phba: Pointer to HBA context object. 5015 * @pbuffer: Pointer to data buffer. 5016 * 5017 * Description: 5018 * This routine gets the driver mailbox access debugfs setup information. 5019 * 5020 * Returns: 5021 * This function returns the amount of data that was read (this could be less 5022 * than @nbytes if the end of the file was reached) or a negative error value. 5023 **/ 5024static int 5025lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 5026{ 5027 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5028 int len = 0; 5029 5030 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5031 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5032 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5033 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5034 5035 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5036 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 5037 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5038 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 5039 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5040 "mbx_word_cnt: %04d\n", mbx_word_cnt); 5041 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5042 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 5043 5044 return len; 5045} 5046 5047/** 5048 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 5049 * @file: The file pointer to read from. 5050 * @buf: The buffer to copy the data to. 5051 * @nbytes: The number of bytes to read. 5052 * @ppos: The position in the file to start reading from. 5053 * 5054 * Description: 5055 * This routine reads data from the @phba driver mailbox access debugfs setup 5056 * information. 5057 * 5058 * Returns: 5059 * This function returns the amount of data that was read (this could be less 5060 * than @nbytes if the end of the file was reached) or a negative error value. 5061 **/ 5062static ssize_t 5063lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 5064 loff_t *ppos) 5065{ 5066 struct lpfc_debug *debug = file->private_data; 5067 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5068 char *pbuffer; 5069 int len = 0; 5070 5071 /* This is a user read operation */ 5072 debug->op = LPFC_IDIAG_OP_RD; 5073 5074 if (!debug->buffer) 5075 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 5076 if (!debug->buffer) 5077 return 0; 5078 pbuffer = debug->buffer; 5079 5080 if (*ppos) 5081 return 0; 5082 5083 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 5084 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 5085 return 0; 5086 5087 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 5088 5089 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5090} 5091 5092/** 5093 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 5094 * @file: The file pointer to read from. 5095 * @buf: The buffer to copy the user data from. 5096 * @nbytes: The number of bytes to get. 5097 * @ppos: The position in the file to start reading from. 5098 * 5099 * This routine get the debugfs idiag command struct from user space and then 5100 * perform the syntax check for driver mailbox command (dump) and sets up the 5101 * necessary states in the idiag command struct accordingly. 5102 * 5103 * It returns the @nbytges passing in from debugfs user space when successful. 5104 * In case of error conditions, it returns proper error code back to the user 5105 * space. 5106 **/ 5107static ssize_t 5108lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 5109 size_t nbytes, loff_t *ppos) 5110{ 5111 struct lpfc_debug *debug = file->private_data; 5112 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5113 int rc; 5114 5115 /* This is a user write operation */ 5116 debug->op = LPFC_IDIAG_OP_WR; 5117 5118 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5119 if (rc < 0) 5120 return rc; 5121 5122 /* Sanity check on command line arguments */ 5123 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5124 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5125 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5126 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5127 5128 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 5129 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 5130 goto error_out; 5131 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 5132 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5133 goto error_out; 5134 if (mbx_word_cnt > sizeof(MAILBOX_t)) 5135 goto error_out; 5136 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 5137 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 5138 goto error_out; 5139 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 5140 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5141 goto error_out; 5142 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 5143 goto error_out; 5144 if (mbx_mbox_cmd != 0x9b) 5145 goto error_out; 5146 } else 5147 goto error_out; 5148 5149 if (mbx_word_cnt == 0) 5150 goto error_out; 5151 if (rc != LPFC_MBX_DMP_ARG) 5152 goto error_out; 5153 if (mbx_mbox_cmd & ~0xff) 5154 goto error_out; 5155 5156 /* condition for stop mailbox dump */ 5157 if (mbx_dump_cnt == 0) 5158 goto reset_out; 5159 5160 return nbytes; 5161 5162reset_out: 5163 /* Clean out command structure on command error out */ 5164 memset(&idiag, 0, sizeof(idiag)); 5165 return nbytes; 5166 5167error_out: 5168 /* Clean out command structure on command error out */ 5169 memset(&idiag, 0, sizeof(idiag)); 5170 return -EINVAL; 5171} 5172 5173/** 5174 * lpfc_idiag_extacc_avail_get - get the available extents information 5175 * @phba: pointer to lpfc hba data structure. 5176 * @pbuffer: pointer to internal buffer. 5177 * @len: length into the internal buffer data has been copied. 5178 * 5179 * Description: 5180 * This routine is to get the available extent information. 5181 * 5182 * Returns: 5183 * overall length of the data read into the internal buffer. 5184 **/ 5185static int 5186lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 5187{ 5188 uint16_t ext_cnt = 0, ext_size = 0; 5189 5190 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5191 "\nAvailable Extents Information:\n"); 5192 5193 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5194 "\tPort Available VPI extents: "); 5195 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 5196 &ext_cnt, &ext_size); 5197 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5198 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5199 5200 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5201 "\tPort Available VFI extents: "); 5202 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 5203 &ext_cnt, &ext_size); 5204 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5205 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5206 5207 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5208 "\tPort Available RPI extents: "); 5209 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 5210 &ext_cnt, &ext_size); 5211 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5212 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5213 5214 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5215 "\tPort Available XRI extents: "); 5216 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 5217 &ext_cnt, &ext_size); 5218 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5219 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5220 5221 return len; 5222} 5223 5224/** 5225 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 5226 * @phba: pointer to lpfc hba data structure. 5227 * @pbuffer: pointer to internal buffer. 5228 * @len: length into the internal buffer data has been copied. 5229 * 5230 * Description: 5231 * This routine is to get the allocated extent information. 5232 * 5233 * Returns: 5234 * overall length of the data read into the internal buffer. 5235 **/ 5236static int 5237lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 5238{ 5239 uint16_t ext_cnt, ext_size; 5240 int rc; 5241 5242 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5243 "\nAllocated Extents Information:\n"); 5244 5245 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5246 "\tHost Allocated VPI extents: "); 5247 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 5248 &ext_cnt, &ext_size); 5249 if (!rc) 5250 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5251 "Port %d Extent %3d, Size %3d\n", 5252 phba->brd_no, ext_cnt, ext_size); 5253 else 5254 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5255 "N/A\n"); 5256 5257 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5258 "\tHost Allocated VFI extents: "); 5259 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 5260 &ext_cnt, &ext_size); 5261 if (!rc) 5262 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5263 "Port %d Extent %3d, Size %3d\n", 5264 phba->brd_no, ext_cnt, ext_size); 5265 else 5266 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5267 "N/A\n"); 5268 5269 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5270 "\tHost Allocated RPI extents: "); 5271 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 5272 &ext_cnt, &ext_size); 5273 if (!rc) 5274 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5275 "Port %d Extent %3d, Size %3d\n", 5276 phba->brd_no, ext_cnt, ext_size); 5277 else 5278 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5279 "N/A\n"); 5280 5281 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5282 "\tHost Allocated XRI extents: "); 5283 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 5284 &ext_cnt, &ext_size); 5285 if (!rc) 5286 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5287 "Port %d Extent %3d, Size %3d\n", 5288 phba->brd_no, ext_cnt, ext_size); 5289 else 5290 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5291 "N/A\n"); 5292 5293 return len; 5294} 5295 5296/** 5297 * lpfc_idiag_extacc_drivr_get - get driver extent information 5298 * @phba: pointer to lpfc hba data structure. 5299 * @pbuffer: pointer to internal buffer. 5300 * @len: length into the internal buffer data has been copied. 5301 * 5302 * Description: 5303 * This routine is to get the driver extent information. 5304 * 5305 * Returns: 5306 * overall length of the data read into the internal buffer. 5307 **/ 5308static int 5309lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 5310{ 5311 struct lpfc_rsrc_blks *rsrc_blks; 5312 int index; 5313 5314 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5315 "\nDriver Extents Information:\n"); 5316 5317 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5318 "\tVPI extents:\n"); 5319 index = 0; 5320 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 5321 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5322 "\t\tBlock %3d: Start %4d, Count %4d\n", 5323 index, rsrc_blks->rsrc_start, 5324 rsrc_blks->rsrc_size); 5325 index++; 5326 } 5327 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5328 "\tVFI extents:\n"); 5329 index = 0; 5330 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 5331 list) { 5332 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5333 "\t\tBlock %3d: Start %4d, Count %4d\n", 5334 index, rsrc_blks->rsrc_start, 5335 rsrc_blks->rsrc_size); 5336 index++; 5337 } 5338 5339 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5340 "\tRPI extents:\n"); 5341 index = 0; 5342 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 5343 list) { 5344 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5345 "\t\tBlock %3d: Start %4d, Count %4d\n", 5346 index, rsrc_blks->rsrc_start, 5347 rsrc_blks->rsrc_size); 5348 index++; 5349 } 5350 5351 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5352 "\tXRI extents:\n"); 5353 index = 0; 5354 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 5355 list) { 5356 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5357 "\t\tBlock %3d: Start %4d, Count %4d\n", 5358 index, rsrc_blks->rsrc_start, 5359 rsrc_blks->rsrc_size); 5360 index++; 5361 } 5362 5363 return len; 5364} 5365 5366/** 5367 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 5368 * @file: The file pointer to read from. 5369 * @buf: The buffer to copy the user data from. 5370 * @nbytes: The number of bytes to get. 5371 * @ppos: The position in the file to start reading from. 5372 * 5373 * This routine get the debugfs idiag command struct from user space and then 5374 * perform the syntax check for extent information access commands and sets 5375 * up the necessary states in the idiag command struct accordingly. 5376 * 5377 * It returns the @nbytges passing in from debugfs user space when successful. 5378 * In case of error conditions, it returns proper error code back to the user 5379 * space. 5380 **/ 5381static ssize_t 5382lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 5383 size_t nbytes, loff_t *ppos) 5384{ 5385 struct lpfc_debug *debug = file->private_data; 5386 uint32_t ext_map; 5387 int rc; 5388 5389 /* This is a user write operation */ 5390 debug->op = LPFC_IDIAG_OP_WR; 5391 5392 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5393 if (rc < 0) 5394 return rc; 5395 5396 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5397 5398 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5399 goto error_out; 5400 if (rc != LPFC_EXT_ACC_CMD_ARG) 5401 goto error_out; 5402 if (!(ext_map & LPFC_EXT_ACC_ALL)) 5403 goto error_out; 5404 5405 return nbytes; 5406error_out: 5407 /* Clean out command structure on command error out */ 5408 memset(&idiag, 0, sizeof(idiag)); 5409 return -EINVAL; 5410} 5411 5412/** 5413 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 5414 * @file: The file pointer to read from. 5415 * @buf: The buffer to copy the data to. 5416 * @nbytes: The number of bytes to read. 5417 * @ppos: The position in the file to start reading from. 5418 * 5419 * Description: 5420 * This routine reads data from the proper extent information according to 5421 * the idiag command, and copies to user @buf. 5422 * 5423 * Returns: 5424 * This function returns the amount of data that was read (this could be less 5425 * than @nbytes if the end of the file was reached) or a negative error value. 5426 **/ 5427static ssize_t 5428lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 5429 loff_t *ppos) 5430{ 5431 struct lpfc_debug *debug = file->private_data; 5432 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5433 char *pbuffer; 5434 uint32_t ext_map; 5435 int len = 0; 5436 5437 /* This is a user read operation */ 5438 debug->op = LPFC_IDIAG_OP_RD; 5439 5440 if (!debug->buffer) 5441 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 5442 if (!debug->buffer) 5443 return 0; 5444 pbuffer = debug->buffer; 5445 if (*ppos) 5446 return 0; 5447 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5448 return 0; 5449 5450 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5451 if (ext_map & LPFC_EXT_ACC_AVAIL) 5452 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 5453 if (ext_map & LPFC_EXT_ACC_ALLOC) 5454 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 5455 if (ext_map & LPFC_EXT_ACC_DRIVR) 5456 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 5457 5458 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5459} 5460 5461static int 5462lpfc_cgn_buffer_open(struct inode *inode, struct file *file) 5463{ 5464 struct lpfc_debug *debug; 5465 int rc = -ENOMEM; 5466 5467 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 5468 if (!debug) 5469 goto out; 5470 5471 debug->buffer = vmalloc(LPFC_CGN_BUF_SIZE); 5472 if (!debug->buffer) { 5473 kfree(debug); 5474 goto out; 5475 } 5476 5477 debug->i_private = inode->i_private; 5478 file->private_data = debug; 5479 5480 rc = 0; 5481out: 5482 return rc; 5483} 5484 5485static ssize_t 5486lpfc_cgn_buffer_read(struct file *file, char __user *buf, size_t nbytes, 5487 loff_t *ppos) 5488{ 5489 struct lpfc_debug *debug = file->private_data; 5490 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5491 char *buffer = debug->buffer; 5492 uint32_t *ptr; 5493 int cnt, len = 0; 5494 5495 if (!phba->sli4_hba.pc_sli4_params.mi_ver || !phba->cgn_i) { 5496 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5497 "Congestion Mgmt is not supported\n"); 5498 goto out; 5499 } 5500 ptr = (uint32_t *)phba->cgn_i->virt; 5501 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5502 "Congestion Buffer Header\n"); 5503 /* Dump the first 32 bytes */ 5504 cnt = 32; 5505 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5506 "000: %08x %08x %08x %08x %08x %08x %08x %08x\n", 5507 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3), 5508 *(ptr + 4), *(ptr + 5), *(ptr + 6), *(ptr + 7)); 5509 ptr += 8; 5510 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5511 "Congestion Buffer Data\n"); 5512 while (cnt < sizeof(struct lpfc_cgn_info)) { 5513 if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { 5514 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5515 "Truncated . . .\n"); 5516 goto out; 5517 } 5518 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5519 "%03x: %08x %08x %08x %08x " 5520 "%08x %08x %08x %08x\n", 5521 cnt, *ptr, *(ptr + 1), *(ptr + 2), 5522 *(ptr + 3), *(ptr + 4), *(ptr + 5), 5523 *(ptr + 6), *(ptr + 7)); 5524 cnt += 32; 5525 ptr += 8; 5526 } 5527 if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { 5528 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5529 "Truncated . . .\n"); 5530 goto out; 5531 } 5532 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5533 "Parameter Data\n"); 5534 ptr = (uint32_t *)&phba->cgn_p; 5535 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5536 "%08x %08x %08x %08x\n", 5537 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3)); 5538out: 5539 return simple_read_from_buffer(buf, nbytes, ppos, buffer, len); 5540} 5541 5542static int 5543lpfc_cgn_buffer_release(struct inode *inode, struct file *file) 5544{ 5545 struct lpfc_debug *debug = file->private_data; 5546 5547 vfree(debug->buffer); 5548 kfree(debug); 5549 5550 return 0; 5551} 5552 5553static int 5554lpfc_rx_monitor_open(struct inode *inode, struct file *file) 5555{ 5556 struct lpfc_rx_monitor_debug *debug; 5557 int rc = -ENOMEM; 5558 5559 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 5560 if (!debug) 5561 goto out; 5562 5563 debug->buffer = vmalloc(MAX_DEBUGFS_RX_INFO_SIZE); 5564 if (!debug->buffer) { 5565 kfree(debug); 5566 goto out; 5567 } 5568 5569 debug->i_private = inode->i_private; 5570 file->private_data = debug; 5571 5572 rc = 0; 5573out: 5574 return rc; 5575} 5576 5577static ssize_t 5578lpfc_rx_monitor_read(struct file *file, char __user *buf, size_t nbytes, 5579 loff_t *ppos) 5580{ 5581 struct lpfc_rx_monitor_debug *debug = file->private_data; 5582 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5583 char *buffer = debug->buffer; 5584 5585 if (!phba->rx_monitor) { 5586 scnprintf(buffer, MAX_DEBUGFS_RX_INFO_SIZE, 5587 "Rx Monitor Info is empty.\n"); 5588 } else { 5589 lpfc_rx_monitor_report(phba, phba->rx_monitor, buffer, 5590 MAX_DEBUGFS_RX_INFO_SIZE, 5591 LPFC_MAX_RXMONITOR_ENTRY); 5592 } 5593 5594 return simple_read_from_buffer(buf, nbytes, ppos, buffer, 5595 strlen(buffer)); 5596} 5597 5598static int 5599lpfc_rx_monitor_release(struct inode *inode, struct file *file) 5600{ 5601 struct lpfc_rx_monitor_debug *debug = file->private_data; 5602 5603 vfree(debug->buffer); 5604 kfree(debug); 5605 5606 return 0; 5607} 5608 5609#undef lpfc_debugfs_op_disc_trc 5610static const struct file_operations lpfc_debugfs_op_disc_trc = { 5611 .owner = THIS_MODULE, 5612 .open = lpfc_debugfs_disc_trc_open, 5613 .llseek = lpfc_debugfs_lseek, 5614 .read = lpfc_debugfs_read, 5615 .release = lpfc_debugfs_release, 5616}; 5617 5618#undef lpfc_debugfs_op_nodelist 5619static const struct file_operations lpfc_debugfs_op_nodelist = { 5620 .owner = THIS_MODULE, 5621 .open = lpfc_debugfs_nodelist_open, 5622 .llseek = lpfc_debugfs_lseek, 5623 .read = lpfc_debugfs_read, 5624 .release = lpfc_debugfs_release, 5625}; 5626 5627#undef lpfc_debugfs_op_multixripools 5628static const struct file_operations lpfc_debugfs_op_multixripools = { 5629 .owner = THIS_MODULE, 5630 .open = lpfc_debugfs_multixripools_open, 5631 .llseek = lpfc_debugfs_lseek, 5632 .read = lpfc_debugfs_read, 5633 .write = lpfc_debugfs_multixripools_write, 5634 .release = lpfc_debugfs_release, 5635}; 5636 5637#undef lpfc_debugfs_op_hbqinfo 5638static const struct file_operations lpfc_debugfs_op_hbqinfo = { 5639 .owner = THIS_MODULE, 5640 .open = lpfc_debugfs_hbqinfo_open, 5641 .llseek = lpfc_debugfs_lseek, 5642 .read = lpfc_debugfs_read, 5643 .release = lpfc_debugfs_release, 5644}; 5645 5646#ifdef LPFC_HDWQ_LOCK_STAT 5647#undef lpfc_debugfs_op_lockstat 5648static const struct file_operations lpfc_debugfs_op_lockstat = { 5649 .owner = THIS_MODULE, 5650 .open = lpfc_debugfs_lockstat_open, 5651 .llseek = lpfc_debugfs_lseek, 5652 .read = lpfc_debugfs_read, 5653 .write = lpfc_debugfs_lockstat_write, 5654 .release = lpfc_debugfs_release, 5655}; 5656#endif 5657 5658#undef lpfc_debugfs_ras_log 5659static const struct file_operations lpfc_debugfs_ras_log = { 5660 .owner = THIS_MODULE, 5661 .open = lpfc_debugfs_ras_log_open, 5662 .llseek = lpfc_debugfs_lseek, 5663 .read = lpfc_debugfs_read, 5664 .release = lpfc_debugfs_ras_log_release, 5665}; 5666 5667#undef lpfc_debugfs_op_dumpHBASlim 5668static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 5669 .owner = THIS_MODULE, 5670 .open = lpfc_debugfs_dumpHBASlim_open, 5671 .llseek = lpfc_debugfs_lseek, 5672 .read = lpfc_debugfs_read, 5673 .release = lpfc_debugfs_release, 5674}; 5675 5676#undef lpfc_debugfs_op_dumpHostSlim 5677static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 5678 .owner = THIS_MODULE, 5679 .open = lpfc_debugfs_dumpHostSlim_open, 5680 .llseek = lpfc_debugfs_lseek, 5681 .read = lpfc_debugfs_read, 5682 .release = lpfc_debugfs_release, 5683}; 5684 5685#undef lpfc_debugfs_op_nvmestat 5686static const struct file_operations lpfc_debugfs_op_nvmestat = { 5687 .owner = THIS_MODULE, 5688 .open = lpfc_debugfs_nvmestat_open, 5689 .llseek = lpfc_debugfs_lseek, 5690 .read = lpfc_debugfs_read, 5691 .write = lpfc_debugfs_nvmestat_write, 5692 .release = lpfc_debugfs_release, 5693}; 5694 5695#undef lpfc_debugfs_op_scsistat 5696static const struct file_operations lpfc_debugfs_op_scsistat = { 5697 .owner = THIS_MODULE, 5698 .open = lpfc_debugfs_scsistat_open, 5699 .llseek = lpfc_debugfs_lseek, 5700 .read = lpfc_debugfs_read, 5701 .write = lpfc_debugfs_scsistat_write, 5702 .release = lpfc_debugfs_release, 5703}; 5704 5705#undef lpfc_debugfs_op_ioktime 5706static const struct file_operations lpfc_debugfs_op_ioktime = { 5707 .owner = THIS_MODULE, 5708 .open = lpfc_debugfs_ioktime_open, 5709 .llseek = lpfc_debugfs_lseek, 5710 .read = lpfc_debugfs_read, 5711 .write = lpfc_debugfs_ioktime_write, 5712 .release = lpfc_debugfs_release, 5713}; 5714 5715#undef lpfc_debugfs_op_nvmeio_trc 5716static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 5717 .owner = THIS_MODULE, 5718 .open = lpfc_debugfs_nvmeio_trc_open, 5719 .llseek = lpfc_debugfs_lseek, 5720 .read = lpfc_debugfs_read, 5721 .write = lpfc_debugfs_nvmeio_trc_write, 5722 .release = lpfc_debugfs_release, 5723}; 5724 5725#undef lpfc_debugfs_op_hdwqstat 5726static const struct file_operations lpfc_debugfs_op_hdwqstat = { 5727 .owner = THIS_MODULE, 5728 .open = lpfc_debugfs_hdwqstat_open, 5729 .llseek = lpfc_debugfs_lseek, 5730 .read = lpfc_debugfs_read, 5731 .write = lpfc_debugfs_hdwqstat_write, 5732 .release = lpfc_debugfs_release, 5733}; 5734 5735#undef lpfc_debugfs_op_dif_err 5736static const struct file_operations lpfc_debugfs_op_dif_err = { 5737 .owner = THIS_MODULE, 5738 .open = simple_open, 5739 .llseek = lpfc_debugfs_lseek, 5740 .read = lpfc_debugfs_dif_err_read, 5741 .write = lpfc_debugfs_dif_err_write, 5742 .release = lpfc_debugfs_dif_err_release, 5743}; 5744 5745#undef lpfc_debugfs_op_slow_ring_trc 5746static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 5747 .owner = THIS_MODULE, 5748 .open = lpfc_debugfs_slow_ring_trc_open, 5749 .llseek = lpfc_debugfs_lseek, 5750 .read = lpfc_debugfs_read, 5751 .release = lpfc_debugfs_release, 5752}; 5753 5754static struct dentry *lpfc_debugfs_root = NULL; 5755static unsigned int lpfc_debugfs_hba_count; 5756 5757/* 5758 * File operations for the iDiag debugfs 5759 */ 5760#undef lpfc_idiag_op_pciCfg 5761static const struct file_operations lpfc_idiag_op_pciCfg = { 5762 .owner = THIS_MODULE, 5763 .open = lpfc_idiag_open, 5764 .llseek = lpfc_debugfs_lseek, 5765 .read = lpfc_idiag_pcicfg_read, 5766 .write = lpfc_idiag_pcicfg_write, 5767 .release = lpfc_idiag_cmd_release, 5768}; 5769 5770#undef lpfc_idiag_op_barAcc 5771static const struct file_operations lpfc_idiag_op_barAcc = { 5772 .owner = THIS_MODULE, 5773 .open = lpfc_idiag_open, 5774 .llseek = lpfc_debugfs_lseek, 5775 .read = lpfc_idiag_baracc_read, 5776 .write = lpfc_idiag_baracc_write, 5777 .release = lpfc_idiag_cmd_release, 5778}; 5779 5780#undef lpfc_idiag_op_queInfo 5781static const struct file_operations lpfc_idiag_op_queInfo = { 5782 .owner = THIS_MODULE, 5783 .open = lpfc_idiag_open, 5784 .read = lpfc_idiag_queinfo_read, 5785 .release = lpfc_idiag_release, 5786}; 5787 5788#undef lpfc_idiag_op_queAcc 5789static const struct file_operations lpfc_idiag_op_queAcc = { 5790 .owner = THIS_MODULE, 5791 .open = lpfc_idiag_open, 5792 .llseek = lpfc_debugfs_lseek, 5793 .read = lpfc_idiag_queacc_read, 5794 .write = lpfc_idiag_queacc_write, 5795 .release = lpfc_idiag_cmd_release, 5796}; 5797 5798#undef lpfc_idiag_op_drbAcc 5799static const struct file_operations lpfc_idiag_op_drbAcc = { 5800 .owner = THIS_MODULE, 5801 .open = lpfc_idiag_open, 5802 .llseek = lpfc_debugfs_lseek, 5803 .read = lpfc_idiag_drbacc_read, 5804 .write = lpfc_idiag_drbacc_write, 5805 .release = lpfc_idiag_cmd_release, 5806}; 5807 5808#undef lpfc_idiag_op_ctlAcc 5809static const struct file_operations lpfc_idiag_op_ctlAcc = { 5810 .owner = THIS_MODULE, 5811 .open = lpfc_idiag_open, 5812 .llseek = lpfc_debugfs_lseek, 5813 .read = lpfc_idiag_ctlacc_read, 5814 .write = lpfc_idiag_ctlacc_write, 5815 .release = lpfc_idiag_cmd_release, 5816}; 5817 5818#undef lpfc_idiag_op_mbxAcc 5819static const struct file_operations lpfc_idiag_op_mbxAcc = { 5820 .owner = THIS_MODULE, 5821 .open = lpfc_idiag_open, 5822 .llseek = lpfc_debugfs_lseek, 5823 .read = lpfc_idiag_mbxacc_read, 5824 .write = lpfc_idiag_mbxacc_write, 5825 .release = lpfc_idiag_cmd_release, 5826}; 5827 5828#undef lpfc_idiag_op_extAcc 5829static const struct file_operations lpfc_idiag_op_extAcc = { 5830 .owner = THIS_MODULE, 5831 .open = lpfc_idiag_open, 5832 .llseek = lpfc_debugfs_lseek, 5833 .read = lpfc_idiag_extacc_read, 5834 .write = lpfc_idiag_extacc_write, 5835 .release = lpfc_idiag_cmd_release, 5836}; 5837#undef lpfc_cgn_buffer_op 5838static const struct file_operations lpfc_cgn_buffer_op = { 5839 .owner = THIS_MODULE, 5840 .open = lpfc_cgn_buffer_open, 5841 .llseek = lpfc_debugfs_lseek, 5842 .read = lpfc_cgn_buffer_read, 5843 .release = lpfc_cgn_buffer_release, 5844}; 5845 5846#undef lpfc_rx_monitor_op 5847static const struct file_operations lpfc_rx_monitor_op = { 5848 .owner = THIS_MODULE, 5849 .open = lpfc_rx_monitor_open, 5850 .llseek = lpfc_debugfs_lseek, 5851 .read = lpfc_rx_monitor_read, 5852 .release = lpfc_rx_monitor_release, 5853}; 5854#endif 5855 5856/* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 5857 * @phba: Pointer to HBA context object. 5858 * @dmabuf: Pointer to a DMA buffer descriptor. 5859 * 5860 * Description: 5861 * This routine dump a bsg pass-through non-embedded mailbox command with 5862 * external buffer. 5863 **/ 5864void 5865lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 5866 enum mbox_type mbox_tp, enum dma_type dma_tp, 5867 enum sta_type sta_tp, 5868 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 5869{ 5870#ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5871 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 5872 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5873 int len = 0; 5874 uint32_t do_dump = 0; 5875 uint32_t *pword; 5876 uint32_t i; 5877 5878 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 5879 return; 5880 5881 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5882 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5883 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5884 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5885 5886 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 5887 (*mbx_dump_cnt == 0) || 5888 (*mbx_word_cnt == 0)) 5889 return; 5890 5891 if (*mbx_mbox_cmd != 0x9B) 5892 return; 5893 5894 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 5895 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 5896 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 5897 pr_err("\nRead mbox command (x%x), " 5898 "nemb:0x%x, extbuf_cnt:%d:\n", 5899 sta_tp, nemb_tp, ext_buf); 5900 } 5901 } 5902 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5903 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5904 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5905 pr_err("\nRead mbox buffer (x%x), " 5906 "nemb:0x%x, extbuf_seq:%d:\n", 5907 sta_tp, nemb_tp, ext_buf); 5908 } 5909 } 5910 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5911 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5912 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5913 pr_err("\nWrite mbox command (x%x), " 5914 "nemb:0x%x, extbuf_cnt:%d:\n", 5915 sta_tp, nemb_tp, ext_buf); 5916 } 5917 } 5918 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5919 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5920 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5921 pr_err("\nWrite mbox buffer (x%x), " 5922 "nemb:0x%x, extbuf_seq:%d:\n", 5923 sta_tp, nemb_tp, ext_buf); 5924 } 5925 } 5926 5927 /* dump buffer content */ 5928 if (do_dump) { 5929 pword = (uint32_t *)dmabuf->virt; 5930 for (i = 0; i < *mbx_word_cnt; i++) { 5931 if (!(i % 8)) { 5932 if (i != 0) 5933 pr_err("%s\n", line_buf); 5934 len = 0; 5935 len += scnprintf(line_buf+len, 5936 LPFC_MBX_ACC_LBUF_SZ-len, 5937 "%03d: ", i); 5938 } 5939 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5940 "%08x ", (uint32_t)*pword); 5941 pword++; 5942 } 5943 if ((i - 1) % 8) 5944 pr_err("%s\n", line_buf); 5945 (*mbx_dump_cnt)--; 5946 } 5947 5948 /* Clean out command structure on reaching dump count */ 5949 if (*mbx_dump_cnt == 0) 5950 memset(&idiag, 0, sizeof(idiag)); 5951 return; 5952#endif 5953} 5954 5955/* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5956 * @phba: Pointer to HBA context object. 5957 * @dmabuf: Pointer to a DMA buffer descriptor. 5958 * 5959 * Description: 5960 * This routine dump a pass-through non-embedded mailbox command from issue 5961 * mailbox command. 5962 **/ 5963void 5964lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5965{ 5966#ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5967 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5968 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5969 int len = 0; 5970 uint32_t *pword; 5971 uint8_t *pbyte; 5972 uint32_t i, j; 5973 5974 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5975 return; 5976 5977 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5978 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5979 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5980 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5981 5982 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5983 (*mbx_dump_cnt == 0) || 5984 (*mbx_word_cnt == 0)) 5985 return; 5986 5987 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5988 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5989 return; 5990 5991 /* dump buffer content */ 5992 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 5993 pr_err("Mailbox command:0x%x dump by word:\n", 5994 pmbox->mbxCommand); 5995 pword = (uint32_t *)pmbox; 5996 for (i = 0; i < *mbx_word_cnt; i++) { 5997 if (!(i % 8)) { 5998 if (i != 0) 5999 pr_err("%s\n", line_buf); 6000 len = 0; 6001 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 6002 len += scnprintf(line_buf+len, 6003 LPFC_MBX_ACC_LBUF_SZ-len, 6004 "%03d: ", i); 6005 } 6006 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 6007 "%08x ", 6008 ((uint32_t)*pword) & 0xffffffff); 6009 pword++; 6010 } 6011 if ((i - 1) % 8) 6012 pr_err("%s\n", line_buf); 6013 pr_err("\n"); 6014 } 6015 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 6016 pr_err("Mailbox command:0x%x dump by byte:\n", 6017 pmbox->mbxCommand); 6018 pbyte = (uint8_t *)pmbox; 6019 for (i = 0; i < *mbx_word_cnt; i++) { 6020 if (!(i % 8)) { 6021 if (i != 0) 6022 pr_err("%s\n", line_buf); 6023 len = 0; 6024 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 6025 len += scnprintf(line_buf+len, 6026 LPFC_MBX_ACC_LBUF_SZ-len, 6027 "%03d: ", i); 6028 } 6029 for (j = 0; j < 4; j++) { 6030 len += scnprintf(line_buf+len, 6031 LPFC_MBX_ACC_LBUF_SZ-len, 6032 "%02x", 6033 ((uint8_t)*pbyte) & 0xff); 6034 pbyte++; 6035 } 6036 len += scnprintf(line_buf+len, 6037 LPFC_MBX_ACC_LBUF_SZ-len, " "); 6038 } 6039 if ((i - 1) % 8) 6040 pr_err("%s\n", line_buf); 6041 pr_err("\n"); 6042 } 6043 (*mbx_dump_cnt)--; 6044 6045 /* Clean out command structure on reaching dump count */ 6046 if (*mbx_dump_cnt == 0) 6047 memset(&idiag, 0, sizeof(idiag)); 6048 return; 6049#endif 6050} 6051 6052/** 6053 * lpfc_debugfs_initialize - Initialize debugfs for a vport 6054 * @vport: The vport pointer to initialize. 6055 * 6056 * Description: 6057 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 6058 * If not already created, this routine will create the lpfc directory, and 6059 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 6060 * also create each file used to access lpfc specific debugfs information. 6061 **/ 6062inline void 6063lpfc_debugfs_initialize(struct lpfc_vport *vport) 6064{ 6065#ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6066 struct lpfc_hba *phba = vport->phba; 6067 char name[64]; 6068 uint32_t num, i; 6069 bool pport_setup = false; 6070 6071 if (!lpfc_debugfs_enable) 6072 return; 6073 6074 /* Setup lpfc root directory */ 6075 if (!lpfc_debugfs_root) { 6076 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 6077 lpfc_debugfs_hba_count = 0; 6078 if (IS_ERR(lpfc_debugfs_root)) { 6079 lpfc_vlog_msg(vport, KERN_WARNING, LOG_INIT, 6080 "0527 Cannot create debugfs lpfc\n"); 6081 return; 6082 } 6083 } 6084 if (!lpfc_debugfs_start_time) 6085 lpfc_debugfs_start_time = jiffies; 6086 6087 /* Setup funcX directory for specific HBA PCI function */ 6088 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 6089 if (!phba->hba_debugfs_root) { 6090 pport_setup = true; 6091 phba->hba_debugfs_root = 6092 debugfs_create_dir(name, lpfc_debugfs_root); 6093 phba->debugfs_vport_count = 0; 6094 if (IS_ERR(phba->hba_debugfs_root)) { 6095 lpfc_vlog_msg(vport, KERN_WARNING, LOG_INIT, 6096 "0528 Cannot create debugfs %s\n", name); 6097 return; 6098 } 6099 lpfc_debugfs_hba_count++; 6100 6101 /* Multi-XRI pools */ 6102 debugfs_create_file("multixripools", 0644, 6103 phba->hba_debugfs_root, phba, 6104 &lpfc_debugfs_op_multixripools); 6105 6106 /* Congestion Info Buffer */ 6107 debugfs_create_file("cgn_buffer", 0644, phba->hba_debugfs_root, 6108 phba, &lpfc_cgn_buffer_op); 6109 6110 /* RX Monitor */ 6111 debugfs_create_file("rx_monitor", 0644, phba->hba_debugfs_root, 6112 phba, &lpfc_rx_monitor_op); 6113 6114 /* RAS log */ 6115 debugfs_create_file("ras_log", 0644, phba->hba_debugfs_root, 6116 phba, &lpfc_debugfs_ras_log); 6117 6118 /* Setup hbqinfo */ 6119 debugfs_create_file("hbqinfo", 0644, phba->hba_debugfs_root, 6120 phba, &lpfc_debugfs_op_hbqinfo); 6121 6122#ifdef LPFC_HDWQ_LOCK_STAT 6123 /* Setup lockstat */ 6124 debugfs_create_file("lockstat", 0644, phba->hba_debugfs_root, 6125 phba, &lpfc_debugfs_op_lockstat); 6126#endif 6127 if (phba->sli_rev < LPFC_SLI_REV4) { 6128 /* Setup dumpHBASlim */ 6129 debugfs_create_file("dumpHBASlim", 0644, 6130 phba->hba_debugfs_root, phba, 6131 &lpfc_debugfs_op_dumpHBASlim); 6132 } 6133 6134 if (phba->sli_rev < LPFC_SLI_REV4) { 6135 /* Setup dumpHostSlim */ 6136 debugfs_create_file("dumpHostSlim", 0644, 6137 phba->hba_debugfs_root, phba, 6138 &lpfc_debugfs_op_dumpHostSlim); 6139 } 6140 6141 /* Setup DIF Error Injections */ 6142 debugfs_create_file_aux_num("InjErrLBA", 0644, 6143 phba->hba_debugfs_root, phba, 6144 InjErrLBA, 6145 &lpfc_debugfs_op_dif_err); 6146 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 6147 6148 debugfs_create_file_aux_num("InjErrNPortID", 0644, 6149 phba->hba_debugfs_root, phba, 6150 InjErrNPortID, 6151 &lpfc_debugfs_op_dif_err); 6152 6153 debugfs_create_file_aux_num("InjErrWWPN", 0644, 6154 phba->hba_debugfs_root, phba, 6155 InjErrWWPN, 6156 &lpfc_debugfs_op_dif_err); 6157 6158 debugfs_create_file_aux_num("writeGuardInjErr", 0644, 6159 phba->hba_debugfs_root, phba, 6160 writeGuard, 6161 &lpfc_debugfs_op_dif_err); 6162 6163 debugfs_create_file_aux_num("writeAppInjErr", 0644, 6164 phba->hba_debugfs_root, phba, 6165 writeApp, &lpfc_debugfs_op_dif_err); 6166 6167 debugfs_create_file_aux_num("writeRefInjErr", 0644, 6168 phba->hba_debugfs_root, phba, 6169 writeRef, &lpfc_debugfs_op_dif_err); 6170 6171 debugfs_create_file_aux_num("readGuardInjErr", 0644, 6172 phba->hba_debugfs_root, phba, 6173 readGuard, 6174 &lpfc_debugfs_op_dif_err); 6175 6176 debugfs_create_file_aux_num("readAppInjErr", 0644, 6177 phba->hba_debugfs_root, phba, 6178 readApp, &lpfc_debugfs_op_dif_err); 6179 6180 debugfs_create_file_aux_num("readRefInjErr", 0644, 6181 phba->hba_debugfs_root, phba, 6182 readRef, &lpfc_debugfs_op_dif_err); 6183 6184 /* Setup slow ring trace */ 6185 if (lpfc_debugfs_max_slow_ring_trc) { 6186 num = lpfc_debugfs_max_slow_ring_trc - 1; 6187 if (num & lpfc_debugfs_max_slow_ring_trc) { 6188 /* Change to be a power of 2 */ 6189 num = lpfc_debugfs_max_slow_ring_trc; 6190 i = 0; 6191 while (num > 1) { 6192 num = num >> 1; 6193 i++; 6194 } 6195 lpfc_debugfs_max_slow_ring_trc = (1 << i); 6196 pr_info("lpfc_debugfs_max_slow_ring_trc " 6197 "changed to %d\n", 6198 lpfc_debugfs_max_slow_ring_trc); 6199 } 6200 } 6201 6202 debugfs_create_file("slow_ring_trace", 0644, 6203 phba->hba_debugfs_root, phba, 6204 &lpfc_debugfs_op_slow_ring_trc); 6205 if (!phba->slow_ring_trc) { 6206 phba->slow_ring_trc = kcalloc( 6207 lpfc_debugfs_max_slow_ring_trc, 6208 sizeof(struct lpfc_debugfs_trc), 6209 GFP_KERNEL); 6210 if (!phba->slow_ring_trc) { 6211 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6212 "0416 Cannot create debugfs " 6213 "slow_ring buffer\n"); 6214 goto out; 6215 } 6216 atomic_set(&phba->slow_ring_trc_cnt, 0); 6217 } 6218 6219 debugfs_create_file("nvmeio_trc", 0644, phba->hba_debugfs_root, 6220 phba, &lpfc_debugfs_op_nvmeio_trc); 6221 6222 atomic_set(&phba->nvmeio_trc_cnt, 0); 6223 if (lpfc_debugfs_max_nvmeio_trc) { 6224 num = lpfc_debugfs_max_nvmeio_trc - 1; 6225 if (num & lpfc_debugfs_max_nvmeio_trc) { 6226 /* Change to be a power of 2 */ 6227 num = lpfc_debugfs_max_nvmeio_trc; 6228 i = 0; 6229 while (num > 1) { 6230 num = num >> 1; 6231 i++; 6232 } 6233 lpfc_debugfs_max_nvmeio_trc = (1 << i); 6234 pr_info("lpfc_debugfs_max_nvmeio_trc changed " 6235 "to %d\n", 6236 lpfc_debugfs_max_nvmeio_trc); 6237 } 6238 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 6239 6240 /* Allocate trace buffer and initialize */ 6241 phba->nvmeio_trc = kzalloc( 6242 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 6243 phba->nvmeio_trc_size), GFP_KERNEL); 6244 6245 if (!phba->nvmeio_trc) { 6246 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6247 "0576 Cannot create debugfs " 6248 "nvmeio_trc buffer\n"); 6249 goto nvmeio_off; 6250 } 6251 phba->nvmeio_trc_on = 1; 6252 phba->nvmeio_trc_output_idx = 0; 6253 } else { 6254nvmeio_off: 6255 phba->nvmeio_trc_size = 0; 6256 phba->nvmeio_trc_on = 0; 6257 phba->nvmeio_trc_output_idx = 0; 6258 phba->nvmeio_trc = NULL; 6259 } 6260 } 6261 6262 snprintf(name, sizeof(name), "vport%d", vport->vpi); 6263 if (!vport->vport_debugfs_root) { 6264 vport->vport_debugfs_root = 6265 debugfs_create_dir(name, phba->hba_debugfs_root); 6266 if (IS_ERR(vport->vport_debugfs_root)) { 6267 lpfc_vlog_msg(vport, KERN_WARNING, LOG_INIT, 6268 "0529 Cannot create debugfs %s\n", name); 6269 return; 6270 } 6271 phba->debugfs_vport_count++; 6272 } 6273 6274 if (lpfc_debugfs_max_disc_trc) { 6275 num = lpfc_debugfs_max_disc_trc - 1; 6276 if (num & lpfc_debugfs_max_disc_trc) { 6277 /* Change to be a power of 2 */ 6278 num = lpfc_debugfs_max_disc_trc; 6279 i = 0; 6280 while (num > 1) { 6281 num = num >> 1; 6282 i++; 6283 } 6284 lpfc_debugfs_max_disc_trc = (1 << i); 6285 pr_info("lpfc_debugfs_max_disc_trc changed to %d\n", 6286 lpfc_debugfs_max_disc_trc); 6287 } 6288 } 6289 6290 vport->disc_trc = kzalloc( 6291 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 6292 GFP_KERNEL); 6293 6294 if (!vport->disc_trc) { 6295 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6296 "0418 Cannot create debugfs disc trace " 6297 "buffer\n"); 6298 goto out; 6299 } 6300 atomic_set(&vport->disc_trc_cnt, 0); 6301 6302 debugfs_create_file("discovery_trace", 0644, vport->vport_debugfs_root, 6303 vport, &lpfc_debugfs_op_disc_trc); 6304 6305 debugfs_create_file("nodelist", 0644, vport->vport_debugfs_root, vport, 6306 &lpfc_debugfs_op_nodelist); 6307 6308 debugfs_create_file("nvmestat", 0644, vport->vport_debugfs_root, vport, 6309 &lpfc_debugfs_op_nvmestat); 6310 6311 debugfs_create_file("scsistat", 0644, vport->vport_debugfs_root, vport, 6312 &lpfc_debugfs_op_scsistat); 6313 6314 debugfs_create_file("ioktime", 0644, vport->vport_debugfs_root, vport, 6315 &lpfc_debugfs_op_ioktime); 6316 6317 debugfs_create_file("hdwqstat", 0644, vport->vport_debugfs_root, vport, 6318 &lpfc_debugfs_op_hdwqstat); 6319 6320 /* 6321 * The following section is for additional directories/files for the 6322 * physical port. 6323 */ 6324 6325 if (!pport_setup) 6326 return; 6327 6328 /* 6329 * iDiag debugfs root entry points for SLI4 device only 6330 */ 6331 if (phba->sli_rev < LPFC_SLI_REV4) 6332 return; 6333 6334 if (!phba->idiag_root) { 6335 phba->idiag_root = 6336 debugfs_create_dir("iDiag", phba->hba_debugfs_root); 6337 /* Initialize iDiag data structure */ 6338 memset(&idiag, 0, sizeof(idiag)); 6339 } 6340 6341 /* iDiag read PCI config space */ 6342 debugfs_create_file("pciCfg", 0644, phba->idiag_root, phba, 6343 &lpfc_idiag_op_pciCfg); 6344 idiag.offset.last_rd = 0; 6345 6346 /* iDiag PCI BAR access */ 6347 debugfs_create_file("barAcc", 0644, phba->idiag_root, phba, 6348 &lpfc_idiag_op_barAcc); 6349 idiag.offset.last_rd = 0; 6350 6351 /* iDiag get PCI function queue information */ 6352 debugfs_create_file("queInfo", 0444, phba->idiag_root, phba, 6353 &lpfc_idiag_op_queInfo); 6354 6355 /* iDiag access PCI function queue */ 6356 debugfs_create_file("queAcc", 0644, phba->idiag_root, phba, 6357 &lpfc_idiag_op_queAcc); 6358 6359 /* iDiag access PCI function doorbell registers */ 6360 debugfs_create_file("drbAcc", 0644, phba->idiag_root, phba, 6361 &lpfc_idiag_op_drbAcc); 6362 6363 /* iDiag access PCI function control registers */ 6364 debugfs_create_file("ctlAcc", 0644, phba->idiag_root, phba, 6365 &lpfc_idiag_op_ctlAcc); 6366 6367 /* iDiag access mbox commands */ 6368 debugfs_create_file("mbxAcc", 0644, phba->idiag_root, phba, 6369 &lpfc_idiag_op_mbxAcc); 6370 6371 /* iDiag extents access commands */ 6372 if (phba->sli4_hba.extents_in_use) { 6373 debugfs_create_file("extAcc", 0644, phba->idiag_root, phba, 6374 &lpfc_idiag_op_extAcc); 6375 } 6376out: 6377 /* alloc'ed items are kfree'd in lpfc_debugfs_terminate */ 6378 return; 6379#endif 6380} 6381 6382/** 6383 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 6384 * @vport: The vport pointer to remove from debugfs. 6385 * 6386 * Description: 6387 * When Debugfs is configured this routine removes debugfs file system elements 6388 * that are specific to this vport. It also checks to see if there are any 6389 * users left for the debugfs directories associated with the HBA and driver. If 6390 * this is the last user of the HBA directory or driver directory then it will 6391 * remove those from the debugfs infrastructure as well. 6392 **/ 6393inline void 6394lpfc_debugfs_terminate(struct lpfc_vport *vport) 6395{ 6396#ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6397 struct lpfc_hba *phba = vport->phba; 6398 6399 kfree(vport->disc_trc); 6400 vport->disc_trc = NULL; 6401 6402 if (vport->vport_debugfs_root) { 6403 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 6404 vport->vport_debugfs_root = NULL; 6405 phba->debugfs_vport_count--; 6406 } 6407 6408 if (!phba->debugfs_vport_count) { 6409 kfree(phba->slow_ring_trc); 6410 phba->slow_ring_trc = NULL; 6411 6412 kfree(phba->nvmeio_trc); 6413 phba->nvmeio_trc = NULL; 6414 6415 if (phba->hba_debugfs_root) { 6416 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 6417 phba->hba_debugfs_root = NULL; 6418 lpfc_debugfs_hba_count--; 6419 } 6420 6421 if (!lpfc_debugfs_hba_count) { 6422 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 6423 lpfc_debugfs_root = NULL; 6424 } 6425 } 6426#endif 6427 return; 6428} 6429 6430/* 6431 * Driver debug utility routines outside of debugfs. The debug utility 6432 * routines implemented here is intended to be used in the instrumented 6433 * debug driver for debugging host or port issues. 6434 */ 6435 6436/** 6437 * lpfc_debug_dump_all_queues - dump all the queues with a hba 6438 * @phba: Pointer to HBA context object. 6439 * 6440 * This function dumps entries of all the queues asociated with the @phba. 6441 **/ 6442void 6443lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 6444{ 6445 int idx; 6446 6447 /* 6448 * Dump Work Queues (WQs) 6449 */ 6450 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 6451 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 6452 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 6453 6454 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6455 lpfc_debug_dump_wq(phba, DUMP_IO, idx); 6456 6457 lpfc_debug_dump_hdr_rq(phba); 6458 lpfc_debug_dump_dat_rq(phba); 6459 /* 6460 * Dump Complete Queues (CQs) 6461 */ 6462 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 6463 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 6464 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 6465 6466 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6467 lpfc_debug_dump_cq(phba, DUMP_IO, idx); 6468 6469 /* 6470 * Dump Event Queues (EQs) 6471 */ 6472 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6473 lpfc_debug_dump_hba_eq(phba, idx); 6474}
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