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/seq_buf.h> 31 #include <linux/slab.h> 32 #include <linux/pci.h> 33 #include <linux/spinlock.h> 34 #include <linux/ctype.h> 35 #include <linux/vmalloc.h> 36 37 #include <scsi/scsi.h> 38 #include <scsi/scsi_device.h> 39 #include <scsi/scsi_host.h> 40 #include <scsi/scsi_transport_fc.h> 41 #include <scsi/fc/fc_fs.h> 42 43 #include "lpfc_hw4.h" 44 #include "lpfc_hw.h" 45 #include "lpfc_sli.h" 46 #include "lpfc_sli4.h" 47 #include "lpfc_nl.h" 48 #include "lpfc_disc.h" 49 #include "lpfc.h" 50 #include "lpfc_scsi.h" 51 #include "lpfc_nvme.h" 52 #include "lpfc_logmsg.h" 53 #include "lpfc_crtn.h" 54 #include "lpfc_vport.h" 55 #include "lpfc_version.h" 56 #include "lpfc_compat.h" 57 #include "lpfc_debugfs.h" 58 #include "lpfc_bsg.h" 59 60 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 61 /* 62 * debugfs interface 63 * 64 * To access this interface the user should: 65 * # mount -t debugfs none /sys/kernel/debug 66 * 67 * The lpfc debugfs directory hierarchy is: 68 * /sys/kernel/debug/lpfc/fnX/vportY 69 * where X is the lpfc hba function unique_id 70 * where Y is the vport VPI on that hba 71 * 72 * Debugging services available per vport: 73 * discovery_trace 74 * This is an ACSII readable file that contains a trace of the last 75 * lpfc_debugfs_max_disc_trc events that happened on a specific vport. 76 * See lpfc_debugfs.h for different categories of discovery events. 77 * To enable the discovery trace, the following module parameters must be set: 78 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 79 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for 80 * EACH vport. X MUST also be a power of 2. 81 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in 82 * lpfc_debugfs.h . 83 * 84 * slow_ring_trace 85 * This is an ACSII readable file that contains a trace of the last 86 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. 87 * To enable the slow ring trace, the following module parameters must be set: 88 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 89 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for 90 * the HBA. X MUST also be a power of 2. 91 */ 92 static int lpfc_debugfs_enable = 1; 93 module_param(lpfc_debugfs_enable, int, S_IRUGO); 94 MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); 95 96 /* This MUST be a power of 2 */ 97 static int lpfc_debugfs_max_disc_trc; 98 module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); 99 MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, 100 "Set debugfs discovery trace depth"); 101 102 /* This MUST be a power of 2 */ 103 static int lpfc_debugfs_max_slow_ring_trc; 104 module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); 105 MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, 106 "Set debugfs slow ring trace depth"); 107 108 /* This MUST be a power of 2 */ 109 static int lpfc_debugfs_max_nvmeio_trc; 110 module_param(lpfc_debugfs_max_nvmeio_trc, int, 0444); 111 MODULE_PARM_DESC(lpfc_debugfs_max_nvmeio_trc, 112 "Set debugfs NVME IO trace depth"); 113 114 static int lpfc_debugfs_mask_disc_trc; 115 module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); 116 MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, 117 "Set debugfs discovery trace mask"); 118 119 #include <linux/debugfs.h> 120 121 static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); 122 static unsigned long lpfc_debugfs_start_time = 0L; 123 124 /* iDiag */ 125 static struct lpfc_idiag idiag; 126 127 /** 128 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer 129 * @vport: The vport to gather the log info from. 130 * @buf: The buffer to dump log into. 131 * @size: The maximum amount of data to process. 132 * 133 * Description: 134 * This routine gathers the lpfc discovery debugfs data from the @vport and 135 * dumps it to @buf up to @size number of bytes. It will start at the next entry 136 * in the log and process the log until the end of the buffer. Then it will 137 * gather from the beginning of the log and process until the current entry. 138 * 139 * Notes: 140 * Discovery logging will be disabled while while this routine dumps the log. 141 * 142 * Return Value: 143 * This routine returns the amount of bytes that were dumped into @buf and will 144 * not exceed @size. 145 **/ 146 static int 147 lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) 148 { 149 int i, index, len, enable; 150 uint32_t ms; 151 struct lpfc_debugfs_trc *dtp; 152 char *buffer; 153 154 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 155 if (!buffer) 156 return 0; 157 158 enable = lpfc_debugfs_enable; 159 lpfc_debugfs_enable = 0; 160 161 len = 0; 162 index = (atomic_read(&vport->disc_trc_cnt) + 1) & 163 (lpfc_debugfs_max_disc_trc - 1); 164 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { 165 dtp = vport->disc_trc + i; 166 if (!dtp->fmt) 167 continue; 168 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 169 snprintf(buffer, 170 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 171 dtp->seq_cnt, ms, dtp->fmt); 172 len += scnprintf(buf+len, size-len, buffer, 173 dtp->data1, dtp->data2, dtp->data3); 174 } 175 for (i = 0; i < index; i++) { 176 dtp = vport->disc_trc + i; 177 if (!dtp->fmt) 178 continue; 179 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 180 snprintf(buffer, 181 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 182 dtp->seq_cnt, ms, dtp->fmt); 183 len += scnprintf(buf+len, size-len, buffer, 184 dtp->data1, dtp->data2, dtp->data3); 185 } 186 187 lpfc_debugfs_enable = enable; 188 kfree(buffer); 189 190 return len; 191 } 192 193 /** 194 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer 195 * @phba: The HBA to gather the log info from. 196 * @buf: The buffer to dump log into. 197 * @size: The maximum amount of data to process. 198 * 199 * Description: 200 * This routine gathers the lpfc slow ring debugfs data from the @phba and 201 * dumps it to @buf up to @size number of bytes. It will start at the next entry 202 * in the log and process the log until the end of the buffer. Then it will 203 * gather from the beginning of the log and process until the current entry. 204 * 205 * Notes: 206 * Slow ring logging will be disabled while while this routine dumps the log. 207 * 208 * Return Value: 209 * This routine returns the amount of bytes that were dumped into @buf and will 210 * not exceed @size. 211 **/ 212 static int 213 lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) 214 { 215 int i, index, len, enable; 216 uint32_t ms; 217 struct lpfc_debugfs_trc *dtp; 218 char *buffer; 219 220 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 221 if (!buffer) 222 return 0; 223 224 enable = lpfc_debugfs_enable; 225 lpfc_debugfs_enable = 0; 226 227 len = 0; 228 index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & 229 (lpfc_debugfs_max_slow_ring_trc - 1); 230 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { 231 dtp = phba->slow_ring_trc + i; 232 if (!dtp->fmt) 233 continue; 234 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 235 snprintf(buffer, 236 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 237 dtp->seq_cnt, ms, dtp->fmt); 238 len += scnprintf(buf+len, size-len, buffer, 239 dtp->data1, dtp->data2, dtp->data3); 240 } 241 for (i = 0; i < index; i++) { 242 dtp = phba->slow_ring_trc + i; 243 if (!dtp->fmt) 244 continue; 245 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 246 snprintf(buffer, 247 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 248 dtp->seq_cnt, ms, dtp->fmt); 249 len += scnprintf(buf+len, size-len, buffer, 250 dtp->data1, dtp->data2, dtp->data3); 251 } 252 253 lpfc_debugfs_enable = enable; 254 kfree(buffer); 255 256 return len; 257 } 258 259 static int lpfc_debugfs_last_hbq = -1; 260 261 /** 262 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer 263 * @phba: The HBA to gather host buffer info from. 264 * @buf: The buffer to dump log into. 265 * @size: The maximum amount of data to process. 266 * 267 * Description: 268 * This routine dumps the host buffer queue info from the @phba to @buf up to 269 * @size number of bytes. A header that describes the current hbq state will be 270 * dumped to @buf first and then info on each hbq entry will be dumped to @buf 271 * until @size bytes have been dumped or all the hbq info has been dumped. 272 * 273 * Notes: 274 * This routine will rotate through each configured HBQ each time called. 275 * 276 * Return Value: 277 * This routine returns the amount of bytes that were dumped into @buf and will 278 * not exceed @size. 279 **/ 280 static int 281 lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) 282 { 283 int len = 0; 284 int i, j, found, posted, low; 285 uint32_t phys, raw_index, getidx; 286 struct lpfc_hbq_init *hip; 287 struct hbq_s *hbqs; 288 struct lpfc_hbq_entry *hbqe; 289 struct lpfc_dmabuf *d_buf; 290 struct hbq_dmabuf *hbq_buf; 291 292 if (phba->sli_rev != 3) 293 return 0; 294 295 spin_lock_irq(&phba->hbalock); 296 297 /* toggle between multiple hbqs, if any */ 298 i = lpfc_sli_hbq_count(); 299 if (i > 1) { 300 lpfc_debugfs_last_hbq++; 301 if (lpfc_debugfs_last_hbq >= i) 302 lpfc_debugfs_last_hbq = 0; 303 } 304 else 305 lpfc_debugfs_last_hbq = 0; 306 307 i = lpfc_debugfs_last_hbq; 308 309 len += scnprintf(buf+len, size-len, "HBQ %d Info\n", i); 310 311 hbqs = &phba->hbqs[i]; 312 posted = 0; 313 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) 314 posted++; 315 316 hip = lpfc_hbq_defs[i]; 317 len += scnprintf(buf+len, size-len, 318 "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", 319 hip->hbq_index, hip->profile, hip->rn, 320 hip->buffer_count, hip->init_count, hip->add_count, posted); 321 322 raw_index = phba->hbq_get[i]; 323 getidx = le32_to_cpu(raw_index); 324 len += scnprintf(buf+len, size-len, 325 "entries:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", 326 hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, 327 hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); 328 329 hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; 330 for (j=0; j<hbqs->entry_count; j++) { 331 len += scnprintf(buf+len, size-len, 332 "%03d: %08x %04x %05x ", j, 333 le32_to_cpu(hbqe->bde.addrLow), 334 le32_to_cpu(hbqe->bde.tus.w), 335 le32_to_cpu(hbqe->buffer_tag)); 336 i = 0; 337 found = 0; 338 339 /* First calculate if slot has an associated posted buffer */ 340 low = hbqs->hbqPutIdx - posted; 341 if (low >= 0) { 342 if ((j >= hbqs->hbqPutIdx) || (j < low)) { 343 len += scnprintf(buf + len, size - len, 344 "Unused\n"); 345 goto skipit; 346 } 347 } 348 else { 349 if ((j >= hbqs->hbqPutIdx) && 350 (j < (hbqs->entry_count+low))) { 351 len += scnprintf(buf + len, size - len, 352 "Unused\n"); 353 goto skipit; 354 } 355 } 356 357 /* Get the Buffer info for the posted buffer */ 358 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { 359 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); 360 phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); 361 if (phys == le32_to_cpu(hbqe->bde.addrLow)) { 362 len += scnprintf(buf+len, size-len, 363 "Buf%d: x%px %06x\n", i, 364 hbq_buf->dbuf.virt, hbq_buf->tag); 365 found = 1; 366 break; 367 } 368 i++; 369 } 370 if (!found) { 371 len += scnprintf(buf+len, size-len, "No DMAinfo?\n"); 372 } 373 skipit: 374 hbqe++; 375 if (len > LPFC_HBQINFO_SIZE - 54) 376 break; 377 } 378 spin_unlock_irq(&phba->hbalock); 379 return len; 380 } 381 382 static int lpfc_debugfs_last_xripool; 383 384 /** 385 * lpfc_debugfs_commonxripools_data - Dump Hardware Queue info to a buffer 386 * @phba: The HBA to gather host buffer info from. 387 * @buf: The buffer to dump log into. 388 * @size: The maximum amount of data to process. 389 * 390 * Description: 391 * This routine dumps the Hardware Queue info from the @phba to @buf up to 392 * @size number of bytes. A header that describes the current hdwq state will be 393 * dumped to @buf first and then info on each hdwq entry will be dumped to @buf 394 * until @size bytes have been dumped or all the hdwq info has been dumped. 395 * 396 * Notes: 397 * This routine will rotate through each configured Hardware Queue each 398 * time called. 399 * 400 * Return Value: 401 * This routine returns the amount of bytes that were dumped into @buf and will 402 * not exceed @size. 403 **/ 404 static int 405 lpfc_debugfs_commonxripools_data(struct lpfc_hba *phba, char *buf, int size) 406 { 407 struct lpfc_sli4_hdw_queue *qp; 408 int len = 0; 409 int i, out; 410 unsigned long iflag; 411 412 for (i = 0; i < phba->cfg_hdw_queue; i++) { 413 if (len > (LPFC_DUMP_MULTIXRIPOOL_SIZE - 80)) 414 break; 415 qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_xripool]; 416 417 len += scnprintf(buf + len, size - len, "HdwQ %d Info ", i); 418 spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag); 419 spin_lock(&qp->io_buf_list_get_lock); 420 spin_lock(&qp->io_buf_list_put_lock); 421 out = qp->total_io_bufs - (qp->get_io_bufs + qp->put_io_bufs + 422 qp->abts_scsi_io_bufs + qp->abts_nvme_io_bufs); 423 len += scnprintf(buf + len, size - len, 424 "tot:%d get:%d put:%d mt:%d " 425 "ABTS scsi:%d nvme:%d Out:%d\n", 426 qp->total_io_bufs, qp->get_io_bufs, qp->put_io_bufs, 427 qp->empty_io_bufs, qp->abts_scsi_io_bufs, 428 qp->abts_nvme_io_bufs, out); 429 spin_unlock(&qp->io_buf_list_put_lock); 430 spin_unlock(&qp->io_buf_list_get_lock); 431 spin_unlock_irqrestore(&qp->abts_io_buf_list_lock, iflag); 432 433 lpfc_debugfs_last_xripool++; 434 if (lpfc_debugfs_last_xripool >= phba->cfg_hdw_queue) 435 lpfc_debugfs_last_xripool = 0; 436 } 437 438 return len; 439 } 440 441 /** 442 * lpfc_debugfs_multixripools_data - Display multi-XRI pools information 443 * @phba: The HBA to gather host buffer info from. 444 * @buf: The buffer to dump log into. 445 * @size: The maximum amount of data to process. 446 * 447 * Description: 448 * This routine displays current multi-XRI pools information including XRI 449 * count in public, private and txcmplq. It also displays current high and 450 * low watermark. 451 * 452 * Return Value: 453 * This routine returns the amount of bytes that were dumped into @buf and will 454 * not exceed @size. 455 **/ 456 static int 457 lpfc_debugfs_multixripools_data(struct lpfc_hba *phba, char *buf, int size) 458 { 459 u32 i; 460 u32 hwq_count; 461 struct lpfc_sli4_hdw_queue *qp; 462 struct lpfc_multixri_pool *multixri_pool; 463 struct lpfc_pvt_pool *pvt_pool; 464 struct lpfc_pbl_pool *pbl_pool; 465 u32 txcmplq_cnt; 466 size_t used; 467 struct seq_buf s; 468 469 if (phba->sli_rev != LPFC_SLI_REV4) 470 return 0; 471 472 if (!phba->sli4_hba.hdwq) 473 return 0; 474 475 if (!phba->cfg_xri_rebalancing) { 476 i = lpfc_debugfs_commonxripools_data(phba, buf, size); 477 return i; 478 } 479 480 used = strnlen(buf, size); 481 seq_buf_init(&s, buf + used, size - used); 482 483 /* 484 * Pbl: Current number of free XRIs in public pool 485 * Pvt: Current number of free XRIs in private pool 486 * Busy: Current number of outstanding XRIs 487 * HWM: Current high watermark 488 * pvt_empty: Incremented by 1 when IO submission fails (no xri) 489 * pbl_empty: Incremented by 1 when all pbl_pool are empty during 490 * IO submission 491 */ 492 seq_buf_printf(&s, 493 "HWQ: Pbl Pvt Busy HWM | pvt_empty pbl_empty "); 494 495 #ifdef LPFC_MXP_STAT 496 /* 497 * MAXH: Max high watermark seen so far 498 * above_lmt: Incremented by 1 if xri_owned > xri_limit during 499 * IO submission 500 * below_lmt: Incremented by 1 if xri_owned <= xri_limit during 501 * IO submission 502 * locPbl_hit: Incremented by 1 if successfully get a batch of XRI from 503 * local pbl_pool 504 * othPbl_hit: Incremented by 1 if successfully get a batch of XRI from 505 * other pbl_pool 506 */ 507 seq_buf_printf(&s, "MAXH above_lmt below_lmt locPbl_hit othPbl_hit"); 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 seq_buf_printf(&s, " | sPbl sPvt sBusy"); 515 #endif 516 517 seq_buf_printf(&s, "\n"); 518 519 hwq_count = phba->cfg_hdw_queue; 520 for (i = 0; i < hwq_count; i++) { 521 qp = &phba->sli4_hba.hdwq[i]; 522 multixri_pool = qp->p_multixri_pool; 523 if (!multixri_pool) 524 continue; 525 pbl_pool = &multixri_pool->pbl_pool; 526 pvt_pool = &multixri_pool->pvt_pool; 527 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt; 528 529 seq_buf_printf(&s, 530 "%03d: %4d %4d %4d %4d | %10d %10d ", 531 i, pbl_pool->count, pvt_pool->count, 532 txcmplq_cnt, pvt_pool->high_watermark, 533 qp->empty_io_bufs, 534 multixri_pool->pbl_empty_count); 535 536 #ifdef LPFC_MXP_STAT 537 seq_buf_printf(&s, 538 "%4d %10d %10d %10d %10d", 539 multixri_pool->stat_max_hwm, 540 multixri_pool->above_limit_count, 541 multixri_pool->below_limit_count, 542 multixri_pool->local_pbl_hit_count, 543 multixri_pool->other_pbl_hit_count); 544 545 seq_buf_printf(&s, 546 " | %4d %4d %5d", 547 multixri_pool->stat_pbl_count, 548 multixri_pool->stat_pvt_count, 549 multixri_pool->stat_busy_count); 550 #endif 551 552 seq_buf_printf(&s, "\n"); 553 554 if (seq_buf_has_overflowed(&s)) 555 break; 556 } 557 return strnlen(buf, size); 558 } 559 560 561 #ifdef LPFC_HDWQ_LOCK_STAT 562 static int lpfc_debugfs_last_lock; 563 564 /** 565 * lpfc_debugfs_lockstat_data - Dump Hardware Queue info to a buffer 566 * @phba: The HBA to gather host buffer info from. 567 * @buf: The buffer to dump log into. 568 * @size: The maximum amount of data to process. 569 * 570 * Description: 571 * This routine dumps the Hardware Queue info from the @phba to @buf up to 572 * @size number of bytes. A header that describes the current hdwq state will be 573 * dumped to @buf first and then info on each hdwq entry will be dumped to @buf 574 * until @size bytes have been dumped or all the hdwq info has been dumped. 575 * 576 * Notes: 577 * This routine will rotate through each configured Hardware Queue each 578 * time called. 579 * 580 * Return Value: 581 * This routine returns the amount of bytes that were dumped into @buf and will 582 * not exceed @size. 583 **/ 584 static int 585 lpfc_debugfs_lockstat_data(struct lpfc_hba *phba, char *buf, int size) 586 { 587 struct lpfc_sli4_hdw_queue *qp; 588 int len = 0; 589 int i; 590 591 if (phba->sli_rev != LPFC_SLI_REV4) 592 return 0; 593 594 if (!phba->sli4_hba.hdwq) 595 return 0; 596 597 for (i = 0; i < phba->cfg_hdw_queue; i++) { 598 if (len > (LPFC_HDWQINFO_SIZE - 100)) 599 break; 600 qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_lock]; 601 602 len += scnprintf(buf + len, size - len, "HdwQ %03d Lock ", i); 603 if (phba->cfg_xri_rebalancing) { 604 len += scnprintf(buf + len, size - len, 605 "get_pvt:%d mv_pvt:%d " 606 "mv2pub:%d mv2pvt:%d " 607 "put_pvt:%d put_pub:%d wq:%d\n", 608 qp->lock_conflict.alloc_pvt_pool, 609 qp->lock_conflict.mv_from_pvt_pool, 610 qp->lock_conflict.mv_to_pub_pool, 611 qp->lock_conflict.mv_to_pvt_pool, 612 qp->lock_conflict.free_pvt_pool, 613 qp->lock_conflict.free_pub_pool, 614 qp->lock_conflict.wq_access); 615 } else { 616 len += scnprintf(buf + len, size - len, 617 "get:%d put:%d free:%d wq:%d\n", 618 qp->lock_conflict.alloc_xri_get, 619 qp->lock_conflict.alloc_xri_put, 620 qp->lock_conflict.free_xri, 621 qp->lock_conflict.wq_access); 622 } 623 624 lpfc_debugfs_last_lock++; 625 if (lpfc_debugfs_last_lock >= phba->cfg_hdw_queue) 626 lpfc_debugfs_last_lock = 0; 627 } 628 629 return len; 630 } 631 #endif 632 633 static int lpfc_debugfs_last_hba_slim_off; 634 635 /** 636 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer 637 * @phba: The HBA to gather SLIM info from. 638 * @buf: The buffer to dump log into. 639 * @size: The maximum amount of data to process. 640 * 641 * Description: 642 * This routine dumps the current contents of HBA SLIM for the HBA associated 643 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. 644 * 645 * Notes: 646 * This routine will only dump up to 1024 bytes of data each time called and 647 * should be called multiple times to dump the entire HBA SLIM. 648 * 649 * Return Value: 650 * This routine returns the amount of bytes that were dumped into @buf and will 651 * not exceed @size. 652 **/ 653 static int 654 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) 655 { 656 int len = 0; 657 int i, off; 658 uint32_t *ptr; 659 char *buffer; 660 661 buffer = kmalloc(1024, GFP_KERNEL); 662 if (!buffer) 663 return 0; 664 665 off = 0; 666 spin_lock_irq(&phba->hbalock); 667 668 len += scnprintf(buf+len, size-len, "HBA SLIM\n"); 669 lpfc_memcpy_from_slim(buffer, 670 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); 671 672 ptr = (uint32_t *)&buffer[0]; 673 off = lpfc_debugfs_last_hba_slim_off; 674 675 /* Set it up for the next time */ 676 lpfc_debugfs_last_hba_slim_off += 1024; 677 if (lpfc_debugfs_last_hba_slim_off >= 4096) 678 lpfc_debugfs_last_hba_slim_off = 0; 679 680 i = 1024; 681 while (i > 0) { 682 len += scnprintf(buf+len, size-len, 683 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 684 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 685 *(ptr+5), *(ptr+6), *(ptr+7)); 686 ptr += 8; 687 i -= (8 * sizeof(uint32_t)); 688 off += (8 * sizeof(uint32_t)); 689 } 690 691 spin_unlock_irq(&phba->hbalock); 692 kfree(buffer); 693 694 return len; 695 } 696 697 /** 698 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer 699 * @phba: The HBA to gather Host SLIM info from. 700 * @buf: The buffer to dump log into. 701 * @size: The maximum amount of data to process. 702 * 703 * Description: 704 * This routine dumps the current contents of host SLIM for the host associated 705 * with @phba to @buf up to @size bytes of data. The dump will contain the 706 * Mailbox, PCB, Rings, and Registers that are located in host memory. 707 * 708 * Return Value: 709 * This routine returns the amount of bytes that were dumped into @buf and will 710 * not exceed @size. 711 **/ 712 static int 713 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) 714 { 715 int len = 0; 716 int i, off; 717 uint32_t word0, word1, word2, word3; 718 uint32_t *ptr; 719 struct lpfc_pgp *pgpp; 720 struct lpfc_sli *psli = &phba->sli; 721 struct lpfc_sli_ring *pring; 722 723 off = 0; 724 spin_lock_irq(&phba->hbalock); 725 726 len += scnprintf(buf+len, size-len, "SLIM Mailbox\n"); 727 ptr = (uint32_t *)phba->slim2p.virt; 728 i = sizeof(MAILBOX_t); 729 while (i > 0) { 730 len += scnprintf(buf+len, size-len, 731 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 732 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 733 *(ptr+5), *(ptr+6), *(ptr+7)); 734 ptr += 8; 735 i -= (8 * sizeof(uint32_t)); 736 off += (8 * sizeof(uint32_t)); 737 } 738 739 len += scnprintf(buf+len, size-len, "SLIM PCB\n"); 740 ptr = (uint32_t *)phba->pcb; 741 i = sizeof(PCB_t); 742 while (i > 0) { 743 len += scnprintf(buf+len, size-len, 744 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 745 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 746 *(ptr+5), *(ptr+6), *(ptr+7)); 747 ptr += 8; 748 i -= (8 * sizeof(uint32_t)); 749 off += (8 * sizeof(uint32_t)); 750 } 751 752 if (phba->sli_rev <= LPFC_SLI_REV3) { 753 for (i = 0; i < 4; i++) { 754 pgpp = &phba->port_gp[i]; 755 pring = &psli->sli3_ring[i]; 756 len += scnprintf(buf+len, size-len, 757 "Ring %d: CMD GetInx:%d " 758 "(Max:%d Next:%d " 759 "Local:%d flg:x%x) " 760 "RSP PutInx:%d Max:%d\n", 761 i, pgpp->cmdGetInx, 762 pring->sli.sli3.numCiocb, 763 pring->sli.sli3.next_cmdidx, 764 pring->sli.sli3.local_getidx, 765 pring->flag, pgpp->rspPutInx, 766 pring->sli.sli3.numRiocb); 767 } 768 769 word0 = readl(phba->HAregaddr); 770 word1 = readl(phba->CAregaddr); 771 word2 = readl(phba->HSregaddr); 772 word3 = readl(phba->HCregaddr); 773 len += scnprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " 774 "HC:%08x\n", word0, word1, word2, word3); 775 } 776 spin_unlock_irq(&phba->hbalock); 777 return len; 778 } 779 780 /** 781 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer 782 * @vport: The vport to gather target node info from. 783 * @buf: The buffer to dump log into. 784 * @size: The maximum amount of data to process. 785 * 786 * Description: 787 * This routine dumps the current target node list associated with @vport to 788 * @buf up to @size bytes of data. Each node entry in the dump will contain a 789 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. 790 * 791 * Return Value: 792 * This routine returns the amount of bytes that were dumped into @buf and will 793 * not exceed @size. 794 **/ 795 static int 796 lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) 797 { 798 int len = 0; 799 int i, iocnt, outio, cnt; 800 struct lpfc_hba *phba = vport->phba; 801 struct lpfc_nodelist *ndlp; 802 unsigned char *statep; 803 unsigned long iflags; 804 struct nvme_fc_local_port *localport; 805 struct nvme_fc_remote_port *nrport = NULL; 806 struct lpfc_nvme_rport *rport; 807 808 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); 809 outio = 0; 810 811 len += scnprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n"); 812 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 813 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 814 iocnt = 0; 815 if (!cnt) { 816 len += scnprintf(buf+len, size-len, 817 "Missing Nodelist Entries\n"); 818 break; 819 } 820 cnt--; 821 switch (ndlp->nlp_state) { 822 case NLP_STE_UNUSED_NODE: 823 statep = "UNUSED"; 824 break; 825 case NLP_STE_PLOGI_ISSUE: 826 statep = "PLOGI "; 827 break; 828 case NLP_STE_ADISC_ISSUE: 829 statep = "ADISC "; 830 break; 831 case NLP_STE_REG_LOGIN_ISSUE: 832 statep = "REGLOG"; 833 break; 834 case NLP_STE_PRLI_ISSUE: 835 statep = "PRLI "; 836 break; 837 case NLP_STE_LOGO_ISSUE: 838 statep = "LOGO "; 839 break; 840 case NLP_STE_UNMAPPED_NODE: 841 statep = "UNMAP "; 842 iocnt = 1; 843 break; 844 case NLP_STE_MAPPED_NODE: 845 statep = "MAPPED"; 846 iocnt = 1; 847 break; 848 case NLP_STE_NPR_NODE: 849 statep = "NPR "; 850 break; 851 default: 852 statep = "UNKNOWN"; 853 } 854 len += scnprintf(buf+len, size-len, "%s DID:x%06x ", 855 statep, ndlp->nlp_DID); 856 len += scnprintf(buf+len, size-len, 857 "WWPN x%016llx ", 858 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 859 len += scnprintf(buf+len, size-len, 860 "WWNN x%016llx ", 861 wwn_to_u64(ndlp->nlp_nodename.u.wwn)); 862 len += scnprintf(buf+len, size-len, "RPI:x%04x ", 863 ndlp->nlp_rpi); 864 len += scnprintf(buf+len, size-len, "flag:x%08lx ", 865 ndlp->nlp_flag); 866 if (ndlp->nlp_enc_info.status) { 867 len += scnprintf(buf + len, 868 size - len, "ENCRYPTED"); 869 len += scnprintf(buf + len, size - len, 870 ndlp->nlp_enc_info.level 871 ? "(CNSA2.0) " : "(CNSA1.0) "); 872 } 873 if (!ndlp->nlp_type) 874 len += scnprintf(buf+len, size-len, "UNKNOWN_TYPE "); 875 if (ndlp->nlp_type & NLP_FC_NODE) 876 len += scnprintf(buf+len, size-len, "FC_NODE "); 877 if (ndlp->nlp_type & NLP_FABRIC) { 878 len += scnprintf(buf+len, size-len, "FABRIC "); 879 iocnt = 0; 880 } 881 if (ndlp->nlp_type & NLP_FCP_TARGET) 882 len += scnprintf(buf+len, size-len, "FCP_TGT sid:%d ", 883 ndlp->nlp_sid); 884 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 885 len += scnprintf(buf+len, size-len, "FCP_INITIATOR "); 886 if (ndlp->nlp_type & NLP_NVME_TARGET) 887 len += scnprintf(buf + len, 888 size - len, "NVME_TGT sid:%d ", 889 NLP_NO_SID); 890 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 891 len += scnprintf(buf + len, 892 size - len, "NVME_INITIATOR "); 893 len += scnprintf(buf+len, size-len, "refcnt:%d", 894 kref_read(&ndlp->kref)); 895 if (iocnt) { 896 i = atomic_read(&ndlp->cmd_pending); 897 len += scnprintf(buf + len, size - len, 898 " OutIO:x%x Qdepth x%x", 899 i, ndlp->cmd_qdepth); 900 outio += i; 901 } 902 len += scnprintf(buf+len, size-len, " xpt:x%x", 903 ndlp->fc4_xpt_flags); 904 if (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING) 905 len += scnprintf(buf+len, size-len, " defer:%x", 906 ndlp->nlp_defer_did); 907 len += scnprintf(buf+len, size-len, "\n"); 908 } 909 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 910 911 len += scnprintf(buf + len, size - len, 912 "\nOutstanding IO x%x\n", outio); 913 914 if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) { 915 len += scnprintf(buf + len, size - len, 916 "\nNVME Targetport Entry ...\n"); 917 918 /* Port state is only one of two values for now. */ 919 if (phba->targetport->port_id) 920 statep = "REGISTERED"; 921 else 922 statep = "INIT"; 923 len += scnprintf(buf + len, size - len, 924 "TGT WWNN x%llx WWPN x%llx State %s\n", 925 wwn_to_u64(vport->fc_nodename.u.wwn), 926 wwn_to_u64(vport->fc_portname.u.wwn), 927 statep); 928 len += scnprintf(buf + len, size - len, 929 " Targetport DID x%06x\n", 930 phba->targetport->port_id); 931 goto out_exit; 932 } 933 934 len += scnprintf(buf + len, size - len, 935 "\nNVME Lport/Rport Entries ...\n"); 936 937 localport = vport->localport; 938 if (!localport) 939 goto out_exit; 940 941 /* Port state is only one of two values for now. */ 942 if (localport->port_id) 943 statep = "ONLINE"; 944 else 945 statep = "UNKNOWN "; 946 947 len += scnprintf(buf + len, size - len, 948 "Lport DID x%06x PortState %s\n", 949 localport->port_id, statep); 950 951 len += scnprintf(buf + len, size - len, "\tRport List:\n"); 952 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 953 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 954 /* local short-hand pointer. */ 955 spin_lock(&ndlp->lock); 956 rport = lpfc_ndlp_get_nrport(ndlp); 957 if (rport) 958 nrport = rport->remoteport; 959 else 960 nrport = NULL; 961 spin_unlock(&ndlp->lock); 962 if (!nrport) 963 continue; 964 965 /* Port state is only one of two values for now. */ 966 switch (nrport->port_state) { 967 case FC_OBJSTATE_ONLINE: 968 statep = "ONLINE"; 969 break; 970 case FC_OBJSTATE_UNKNOWN: 971 statep = "UNKNOWN "; 972 break; 973 default: 974 statep = "UNSUPPORTED"; 975 break; 976 } 977 978 /* Tab in to show lport ownership. */ 979 len += scnprintf(buf + len, size - len, 980 "\t%s Port ID:x%06x ", 981 statep, nrport->port_id); 982 len += scnprintf(buf + len, size - len, "WWPN x%llx ", 983 nrport->port_name); 984 len += scnprintf(buf + len, size - len, "WWNN x%llx ", 985 nrport->node_name); 986 987 /* An NVME rport can have multiple roles. */ 988 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) 989 len += scnprintf(buf + len, size - len, 990 "INITIATOR "); 991 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) 992 len += scnprintf(buf + len, size - len, 993 "TARGET "); 994 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) 995 len += scnprintf(buf + len, size - len, 996 "DISCSRVC "); 997 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 998 FC_PORT_ROLE_NVME_TARGET | 999 FC_PORT_ROLE_NVME_DISCOVERY)) 1000 len += scnprintf(buf + len, size - len, 1001 "UNKNOWN ROLE x%x", 1002 nrport->port_role); 1003 /* Terminate the string. */ 1004 len += scnprintf(buf + len, size - len, "\n"); 1005 } 1006 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 1007 out_exit: 1008 return len; 1009 } 1010 1011 /** 1012 * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer 1013 * @vport: The vport to gather target node info from. 1014 * @buf: The buffer to dump log into. 1015 * @size: The maximum amount of data to process. 1016 * 1017 * Description: 1018 * This routine dumps the NVME statistics associated with @vport 1019 * 1020 * Return Value: 1021 * This routine returns the amount of bytes that were dumped into @buf and will 1022 * not exceed @size. 1023 **/ 1024 static int 1025 lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size) 1026 { 1027 struct lpfc_hba *phba = vport->phba; 1028 struct lpfc_nvmet_tgtport *tgtp; 1029 struct lpfc_async_xchg_ctx *ctxp, *next_ctxp; 1030 struct nvme_fc_local_port *localport; 1031 struct lpfc_fc4_ctrl_stat *cstat; 1032 struct lpfc_nvme_lport *lport; 1033 uint64_t data1, data2, data3; 1034 uint64_t tot, totin, totout; 1035 int cnt, i; 1036 int len = 0; 1037 1038 if (phba->nvmet_support) { 1039 if (!phba->targetport) 1040 return len; 1041 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 1042 len += scnprintf(buf + len, size - len, 1043 "\nNVME Targetport Statistics\n"); 1044 1045 len += scnprintf(buf + len, size - len, 1046 "LS: Rcv %08x Drop %08x Abort %08x\n", 1047 atomic_read(&tgtp->rcv_ls_req_in), 1048 atomic_read(&tgtp->rcv_ls_req_drop), 1049 atomic_read(&tgtp->xmt_ls_abort)); 1050 if (atomic_read(&tgtp->rcv_ls_req_in) != 1051 atomic_read(&tgtp->rcv_ls_req_out)) { 1052 len += scnprintf(buf + len, size - len, 1053 "Rcv LS: in %08x != out %08x\n", 1054 atomic_read(&tgtp->rcv_ls_req_in), 1055 atomic_read(&tgtp->rcv_ls_req_out)); 1056 } 1057 1058 len += scnprintf(buf + len, size - len, 1059 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 1060 atomic_read(&tgtp->xmt_ls_rsp), 1061 atomic_read(&tgtp->xmt_ls_drop), 1062 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 1063 1064 len += scnprintf(buf + len, size - len, 1065 "LS: RSP Abort %08x xb %08x Err %08x\n", 1066 atomic_read(&tgtp->xmt_ls_rsp_aborted), 1067 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 1068 atomic_read(&tgtp->xmt_ls_rsp_error)); 1069 1070 len += scnprintf(buf + len, size - len, 1071 "FCP: Rcv %08x Defer %08x Release %08x " 1072 "Drop %08x\n", 1073 atomic_read(&tgtp->rcv_fcp_cmd_in), 1074 atomic_read(&tgtp->rcv_fcp_cmd_defer), 1075 atomic_read(&tgtp->xmt_fcp_release), 1076 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 1077 1078 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 1079 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 1080 len += scnprintf(buf + len, size - len, 1081 "Rcv FCP: in %08x != out %08x\n", 1082 atomic_read(&tgtp->rcv_fcp_cmd_in), 1083 atomic_read(&tgtp->rcv_fcp_cmd_out)); 1084 } 1085 1086 len += scnprintf(buf + len, size - len, 1087 "FCP Rsp: read %08x readrsp %08x " 1088 "write %08x rsp %08x\n", 1089 atomic_read(&tgtp->xmt_fcp_read), 1090 atomic_read(&tgtp->xmt_fcp_read_rsp), 1091 atomic_read(&tgtp->xmt_fcp_write), 1092 atomic_read(&tgtp->xmt_fcp_rsp)); 1093 1094 len += scnprintf(buf + len, size - len, 1095 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 1096 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 1097 atomic_read(&tgtp->xmt_fcp_rsp_error), 1098 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 1099 1100 len += scnprintf(buf + len, size - len, 1101 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 1102 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 1103 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 1104 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 1105 1106 len += scnprintf(buf + len, size - len, 1107 "ABORT: Xmt %08x Cmpl %08x\n", 1108 atomic_read(&tgtp->xmt_fcp_abort), 1109 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 1110 1111 len += scnprintf(buf + len, size - len, 1112 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x", 1113 atomic_read(&tgtp->xmt_abort_sol), 1114 atomic_read(&tgtp->xmt_abort_unsol), 1115 atomic_read(&tgtp->xmt_abort_rsp), 1116 atomic_read(&tgtp->xmt_abort_rsp_error)); 1117 1118 len += scnprintf(buf + len, size - len, "\n"); 1119 1120 cnt = 0; 1121 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1122 list_for_each_entry_safe(ctxp, next_ctxp, 1123 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1124 list) { 1125 cnt++; 1126 } 1127 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1128 if (cnt) { 1129 len += scnprintf(buf + len, size - len, 1130 "ABORT: %d ctx entries\n", cnt); 1131 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1132 list_for_each_entry_safe(ctxp, next_ctxp, 1133 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1134 list) { 1135 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) 1136 break; 1137 len += scnprintf(buf + len, size - len, 1138 "Entry: oxid %x state %x " 1139 "flag %x\n", 1140 ctxp->oxid, ctxp->state, 1141 ctxp->flag); 1142 } 1143 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1144 } 1145 1146 /* Calculate outstanding IOs */ 1147 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 1148 tot += atomic_read(&tgtp->xmt_fcp_release); 1149 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 1150 1151 len += scnprintf(buf + len, size - len, 1152 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 1153 "CTX Outstanding %08llx\n", 1154 phba->sli4_hba.nvmet_xri_cnt, 1155 phba->sli4_hba.nvmet_io_wait_cnt, 1156 phba->sli4_hba.nvmet_io_wait_total, 1157 tot); 1158 } else { 1159 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 1160 return len; 1161 1162 localport = vport->localport; 1163 if (!localport) 1164 return len; 1165 lport = (struct lpfc_nvme_lport *)localport->private; 1166 if (!lport) 1167 return len; 1168 1169 len += scnprintf(buf + len, size - len, 1170 "\nNVME HDWQ Statistics\n"); 1171 1172 len += scnprintf(buf + len, size - len, 1173 "LS: Xmt %016x Cmpl %016x\n", 1174 atomic_read(&lport->fc4NvmeLsRequests), 1175 atomic_read(&lport->fc4NvmeLsCmpls)); 1176 1177 totin = 0; 1178 totout = 0; 1179 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1180 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 1181 tot = cstat->io_cmpls; 1182 totin += tot; 1183 data1 = cstat->input_requests; 1184 data2 = cstat->output_requests; 1185 data3 = cstat->control_requests; 1186 totout += (data1 + data2 + data3); 1187 1188 /* Limit to 32, debugfs display buffer limitation */ 1189 if (i >= 32) 1190 continue; 1191 1192 len += scnprintf(buf + len, PAGE_SIZE - len, 1193 "HDWQ (%d): Rd %016llx Wr %016llx " 1194 "IO %016llx ", 1195 i, data1, data2, data3); 1196 len += scnprintf(buf + len, PAGE_SIZE - len, 1197 "Cmpl %016llx OutIO %016llx\n", 1198 tot, ((data1 + data2 + data3) - tot)); 1199 } 1200 len += scnprintf(buf + len, PAGE_SIZE - len, 1201 "Total FCP Cmpl %016llx Issue %016llx " 1202 "OutIO %016llx\n", 1203 totin, totout, totout - totin); 1204 1205 len += scnprintf(buf + len, size - len, 1206 "LS Xmt Err: Abrt %08x Err %08x " 1207 "Cmpl Err: xb %08x Err %08x\n", 1208 atomic_read(&lport->xmt_ls_abort), 1209 atomic_read(&lport->xmt_ls_err), 1210 atomic_read(&lport->cmpl_ls_xb), 1211 atomic_read(&lport->cmpl_ls_err)); 1212 1213 len += scnprintf(buf + len, size - len, 1214 "FCP Xmt Err: noxri %06x nondlp %06x " 1215 "qdepth %06x wqerr %06x err %06x Abrt %06x\n", 1216 atomic_read(&lport->xmt_fcp_noxri), 1217 atomic_read(&lport->xmt_fcp_bad_ndlp), 1218 atomic_read(&lport->xmt_fcp_qdepth), 1219 atomic_read(&lport->xmt_fcp_wqerr), 1220 atomic_read(&lport->xmt_fcp_err), 1221 atomic_read(&lport->xmt_fcp_abort)); 1222 1223 len += scnprintf(buf + len, size - len, 1224 "FCP Cmpl Err: xb %08x Err %08x\n", 1225 atomic_read(&lport->cmpl_fcp_xb), 1226 atomic_read(&lport->cmpl_fcp_err)); 1227 1228 } 1229 1230 return len; 1231 } 1232 1233 /** 1234 * lpfc_debugfs_scsistat_data - Dump target node list to a buffer 1235 * @vport: The vport to gather target node info from. 1236 * @buf: The buffer to dump log into. 1237 * @size: The maximum amount of data to process. 1238 * 1239 * Description: 1240 * This routine dumps the SCSI statistics associated with @vport 1241 * 1242 * Return Value: 1243 * This routine returns the amount of bytes that were dumped into @buf and will 1244 * not exceed @size. 1245 **/ 1246 static int 1247 lpfc_debugfs_scsistat_data(struct lpfc_vport *vport, char *buf, int size) 1248 { 1249 int len; 1250 struct lpfc_hba *phba = vport->phba; 1251 struct lpfc_fc4_ctrl_stat *cstat; 1252 u64 data1, data2, data3; 1253 u64 tot, totin, totout; 1254 int i; 1255 struct seq_buf s; 1256 1257 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 1258 (phba->sli_rev != LPFC_SLI_REV4)) 1259 return 0; 1260 1261 seq_buf_init(&s, buf, size); 1262 seq_buf_printf(&s, "SCSI HDWQ Statistics\n"); 1263 1264 totin = 0; 1265 totout = 0; 1266 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1267 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 1268 tot = cstat->io_cmpls; 1269 totin += tot; 1270 data1 = cstat->input_requests; 1271 data2 = cstat->output_requests; 1272 data3 = cstat->control_requests; 1273 totout += (data1 + data2 + data3); 1274 1275 seq_buf_printf(&s, "HDWQ (%d): Rd %016llx Wr %016llx IO %016llx ", 1276 i, data1, data2, data3); 1277 1278 seq_buf_printf(&s, "Cmpl %016llx OutIO %016llx\n", 1279 tot, ((data1 + data2 + data3) - tot)); 1280 1281 if (seq_buf_has_overflowed(&s)) 1282 break; 1283 } 1284 seq_buf_printf(&s, "Total FCP Cmpl %016llx Issue %016llx OutIO %016llx\n", 1285 totin, totout, totout - totin); 1286 1287 len = strnlen(buf, size); 1288 1289 return len; 1290 } 1291 1292 void 1293 lpfc_io_ktime(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) 1294 { 1295 uint64_t seg1, seg2, seg3, seg4; 1296 uint64_t segsum; 1297 1298 if (!lpfc_cmd->ts_last_cmd || 1299 !lpfc_cmd->ts_cmd_start || 1300 !lpfc_cmd->ts_cmd_wqput || 1301 !lpfc_cmd->ts_isr_cmpl || 1302 !lpfc_cmd->ts_data_io) 1303 return; 1304 1305 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_cmd_start) 1306 return; 1307 if (lpfc_cmd->ts_cmd_start < lpfc_cmd->ts_last_cmd) 1308 return; 1309 if (lpfc_cmd->ts_cmd_wqput < lpfc_cmd->ts_cmd_start) 1310 return; 1311 if (lpfc_cmd->ts_isr_cmpl < lpfc_cmd->ts_cmd_wqput) 1312 return; 1313 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_isr_cmpl) 1314 return; 1315 /* 1316 * Segment 1 - Time from Last FCP command cmpl is handed 1317 * off to NVME Layer to start of next command. 1318 * Segment 2 - Time from Driver receives a IO cmd start 1319 * from NVME Layer to WQ put is done on IO cmd. 1320 * Segment 3 - Time from Driver WQ put is done on IO cmd 1321 * to MSI-X ISR for IO cmpl. 1322 * Segment 4 - Time from MSI-X ISR for IO cmpl to when 1323 * cmpl is handled off to the NVME Layer. 1324 */ 1325 seg1 = lpfc_cmd->ts_cmd_start - lpfc_cmd->ts_last_cmd; 1326 if (seg1 > 5000000) /* 5 ms - for sequential IOs only */ 1327 seg1 = 0; 1328 1329 /* Calculate times relative to start of IO */ 1330 seg2 = (lpfc_cmd->ts_cmd_wqput - lpfc_cmd->ts_cmd_start); 1331 segsum = seg2; 1332 seg3 = lpfc_cmd->ts_isr_cmpl - lpfc_cmd->ts_cmd_start; 1333 if (segsum > seg3) 1334 return; 1335 seg3 -= segsum; 1336 segsum += seg3; 1337 1338 seg4 = lpfc_cmd->ts_data_io - lpfc_cmd->ts_cmd_start; 1339 if (segsum > seg4) 1340 return; 1341 seg4 -= segsum; 1342 1343 phba->ktime_data_samples++; 1344 phba->ktime_seg1_total += seg1; 1345 if (seg1 < phba->ktime_seg1_min) 1346 phba->ktime_seg1_min = seg1; 1347 else if (seg1 > phba->ktime_seg1_max) 1348 phba->ktime_seg1_max = seg1; 1349 phba->ktime_seg2_total += seg2; 1350 if (seg2 < phba->ktime_seg2_min) 1351 phba->ktime_seg2_min = seg2; 1352 else if (seg2 > phba->ktime_seg2_max) 1353 phba->ktime_seg2_max = seg2; 1354 phba->ktime_seg3_total += seg3; 1355 if (seg3 < phba->ktime_seg3_min) 1356 phba->ktime_seg3_min = seg3; 1357 else if (seg3 > phba->ktime_seg3_max) 1358 phba->ktime_seg3_max = seg3; 1359 phba->ktime_seg4_total += seg4; 1360 if (seg4 < phba->ktime_seg4_min) 1361 phba->ktime_seg4_min = seg4; 1362 else if (seg4 > phba->ktime_seg4_max) 1363 phba->ktime_seg4_max = seg4; 1364 1365 lpfc_cmd->ts_last_cmd = 0; 1366 lpfc_cmd->ts_cmd_start = 0; 1367 lpfc_cmd->ts_cmd_wqput = 0; 1368 lpfc_cmd->ts_isr_cmpl = 0; 1369 lpfc_cmd->ts_data_io = 0; 1370 } 1371 1372 /** 1373 * lpfc_debugfs_ioktime_data - Dump target node list to a buffer 1374 * @vport: The vport to gather target node info from. 1375 * @buf: The buffer to dump log into. 1376 * @size: The maximum amount of data to process. 1377 * 1378 * Description: 1379 * This routine dumps the NVME statistics associated with @vport 1380 * 1381 * Return Value: 1382 * This routine returns the amount of bytes that were dumped into @buf and will 1383 * not exceed @size. 1384 **/ 1385 static int 1386 lpfc_debugfs_ioktime_data(struct lpfc_vport *vport, char *buf, int size) 1387 { 1388 struct lpfc_hba *phba = vport->phba; 1389 int len = 0; 1390 1391 if (phba->nvmet_support == 0) { 1392 /* Initiator */ 1393 len += scnprintf(buf + len, PAGE_SIZE - len, 1394 "ktime %s: Total Samples: %lld\n", 1395 (phba->ktime_on ? "Enabled" : "Disabled"), 1396 phba->ktime_data_samples); 1397 if (phba->ktime_data_samples == 0) 1398 return len; 1399 1400 len += scnprintf( 1401 buf + len, PAGE_SIZE - len, 1402 "Segment 1: Last Cmd cmpl " 1403 "done -to- Start of next Cmd (in driver)\n"); 1404 len += scnprintf( 1405 buf + len, PAGE_SIZE - len, 1406 "avg:%08lld min:%08lld max %08lld\n", 1407 div_u64(phba->ktime_seg1_total, 1408 phba->ktime_data_samples), 1409 phba->ktime_seg1_min, 1410 phba->ktime_seg1_max); 1411 len += scnprintf( 1412 buf + len, PAGE_SIZE - len, 1413 "Segment 2: Driver start of Cmd " 1414 "-to- Firmware WQ doorbell\n"); 1415 len += scnprintf( 1416 buf + len, PAGE_SIZE - len, 1417 "avg:%08lld min:%08lld max %08lld\n", 1418 div_u64(phba->ktime_seg2_total, 1419 phba->ktime_data_samples), 1420 phba->ktime_seg2_min, 1421 phba->ktime_seg2_max); 1422 len += scnprintf( 1423 buf + len, PAGE_SIZE - len, 1424 "Segment 3: Firmware WQ doorbell -to- " 1425 "MSI-X ISR cmpl\n"); 1426 len += scnprintf( 1427 buf + len, PAGE_SIZE - len, 1428 "avg:%08lld min:%08lld max %08lld\n", 1429 div_u64(phba->ktime_seg3_total, 1430 phba->ktime_data_samples), 1431 phba->ktime_seg3_min, 1432 phba->ktime_seg3_max); 1433 len += scnprintf( 1434 buf + len, PAGE_SIZE - len, 1435 "Segment 4: MSI-X ISR cmpl -to- " 1436 "Cmd cmpl done\n"); 1437 len += scnprintf( 1438 buf + len, PAGE_SIZE - len, 1439 "avg:%08lld min:%08lld max %08lld\n", 1440 div_u64(phba->ktime_seg4_total, 1441 phba->ktime_data_samples), 1442 phba->ktime_seg4_min, 1443 phba->ktime_seg4_max); 1444 len += scnprintf( 1445 buf + len, PAGE_SIZE - len, 1446 "Total IO avg time: %08lld\n", 1447 div_u64(phba->ktime_seg1_total + 1448 phba->ktime_seg2_total + 1449 phba->ktime_seg3_total + 1450 phba->ktime_seg4_total, 1451 phba->ktime_data_samples)); 1452 return len; 1453 } 1454 1455 /* NVME Target */ 1456 len += scnprintf(buf + len, PAGE_SIZE-len, 1457 "ktime %s: Total Samples: %lld %lld\n", 1458 (phba->ktime_on ? "Enabled" : "Disabled"), 1459 phba->ktime_data_samples, 1460 phba->ktime_status_samples); 1461 if (phba->ktime_data_samples == 0) 1462 return len; 1463 1464 len += scnprintf(buf + len, PAGE_SIZE-len, 1465 "Segment 1: MSI-X ISR Rcv cmd -to- " 1466 "cmd pass to NVME Layer\n"); 1467 len += scnprintf(buf + len, PAGE_SIZE-len, 1468 "avg:%08lld min:%08lld max %08lld\n", 1469 div_u64(phba->ktime_seg1_total, 1470 phba->ktime_data_samples), 1471 phba->ktime_seg1_min, 1472 phba->ktime_seg1_max); 1473 len += scnprintf(buf + len, PAGE_SIZE-len, 1474 "Segment 2: cmd pass to NVME Layer- " 1475 "-to- Driver rcv cmd OP (action)\n"); 1476 len += scnprintf(buf + len, PAGE_SIZE-len, 1477 "avg:%08lld min:%08lld max %08lld\n", 1478 div_u64(phba->ktime_seg2_total, 1479 phba->ktime_data_samples), 1480 phba->ktime_seg2_min, 1481 phba->ktime_seg2_max); 1482 len += scnprintf(buf + len, PAGE_SIZE-len, 1483 "Segment 3: Driver rcv cmd OP -to- " 1484 "Firmware WQ doorbell: cmd\n"); 1485 len += scnprintf(buf + len, PAGE_SIZE-len, 1486 "avg:%08lld min:%08lld max %08lld\n", 1487 div_u64(phba->ktime_seg3_total, 1488 phba->ktime_data_samples), 1489 phba->ktime_seg3_min, 1490 phba->ktime_seg3_max); 1491 len += scnprintf(buf + len, PAGE_SIZE-len, 1492 "Segment 4: Firmware WQ doorbell: cmd " 1493 "-to- MSI-X ISR for cmd cmpl\n"); 1494 len += scnprintf(buf + len, PAGE_SIZE-len, 1495 "avg:%08lld min:%08lld max %08lld\n", 1496 div_u64(phba->ktime_seg4_total, 1497 phba->ktime_data_samples), 1498 phba->ktime_seg4_min, 1499 phba->ktime_seg4_max); 1500 len += scnprintf(buf + len, PAGE_SIZE-len, 1501 "Segment 5: MSI-X ISR for cmd cmpl " 1502 "-to- NVME layer passed cmd done\n"); 1503 len += scnprintf(buf + len, PAGE_SIZE-len, 1504 "avg:%08lld min:%08lld max %08lld\n", 1505 div_u64(phba->ktime_seg5_total, 1506 phba->ktime_data_samples), 1507 phba->ktime_seg5_min, 1508 phba->ktime_seg5_max); 1509 1510 if (phba->ktime_status_samples == 0) { 1511 len += scnprintf(buf + len, PAGE_SIZE-len, 1512 "Total: cmd received by MSI-X ISR " 1513 "-to- cmd completed on wire\n"); 1514 len += scnprintf(buf + len, PAGE_SIZE-len, 1515 "avg:%08lld min:%08lld " 1516 "max %08lld\n", 1517 div_u64(phba->ktime_seg10_total, 1518 phba->ktime_data_samples), 1519 phba->ktime_seg10_min, 1520 phba->ktime_seg10_max); 1521 return len; 1522 } 1523 1524 len += scnprintf(buf + len, PAGE_SIZE-len, 1525 "Segment 6: NVME layer passed cmd done " 1526 "-to- Driver rcv rsp status OP\n"); 1527 len += scnprintf(buf + len, PAGE_SIZE-len, 1528 "avg:%08lld min:%08lld max %08lld\n", 1529 div_u64(phba->ktime_seg6_total, 1530 phba->ktime_status_samples), 1531 phba->ktime_seg6_min, 1532 phba->ktime_seg6_max); 1533 len += scnprintf(buf + len, PAGE_SIZE-len, 1534 "Segment 7: Driver rcv rsp status OP " 1535 "-to- Firmware WQ doorbell: status\n"); 1536 len += scnprintf(buf + len, PAGE_SIZE-len, 1537 "avg:%08lld min:%08lld max %08lld\n", 1538 div_u64(phba->ktime_seg7_total, 1539 phba->ktime_status_samples), 1540 phba->ktime_seg7_min, 1541 phba->ktime_seg7_max); 1542 len += scnprintf(buf + len, PAGE_SIZE-len, 1543 "Segment 8: Firmware WQ doorbell: status" 1544 " -to- MSI-X ISR for status cmpl\n"); 1545 len += scnprintf(buf + len, PAGE_SIZE-len, 1546 "avg:%08lld min:%08lld max %08lld\n", 1547 div_u64(phba->ktime_seg8_total, 1548 phba->ktime_status_samples), 1549 phba->ktime_seg8_min, 1550 phba->ktime_seg8_max); 1551 len += scnprintf(buf + len, PAGE_SIZE-len, 1552 "Segment 9: MSI-X ISR for status cmpl " 1553 "-to- NVME layer passed status done\n"); 1554 len += scnprintf(buf + len, PAGE_SIZE-len, 1555 "avg:%08lld min:%08lld max %08lld\n", 1556 div_u64(phba->ktime_seg9_total, 1557 phba->ktime_status_samples), 1558 phba->ktime_seg9_min, 1559 phba->ktime_seg9_max); 1560 len += scnprintf(buf + len, PAGE_SIZE-len, 1561 "Total: cmd received by MSI-X ISR -to- " 1562 "cmd completed on wire\n"); 1563 len += scnprintf(buf + len, PAGE_SIZE-len, 1564 "avg:%08lld min:%08lld max %08lld\n", 1565 div_u64(phba->ktime_seg10_total, 1566 phba->ktime_status_samples), 1567 phba->ktime_seg10_min, 1568 phba->ktime_seg10_max); 1569 return len; 1570 } 1571 1572 /** 1573 * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer 1574 * @phba: The phba to gather target node info from. 1575 * @buf: The buffer to dump log into. 1576 * @size: The maximum amount of data to process. 1577 * 1578 * Description: 1579 * This routine dumps the NVME IO trace associated with @phba 1580 * 1581 * Return Value: 1582 * This routine returns the amount of bytes that were dumped into @buf and will 1583 * not exceed @size. 1584 **/ 1585 static int 1586 lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size) 1587 { 1588 struct lpfc_debugfs_nvmeio_trc *dtp; 1589 int i, state, index, skip; 1590 int len = 0; 1591 1592 state = phba->nvmeio_trc_on; 1593 1594 index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) & 1595 (phba->nvmeio_trc_size - 1); 1596 skip = phba->nvmeio_trc_output_idx; 1597 1598 len += scnprintf(buf + len, size - len, 1599 "%s IO Trace %s: next_idx %d skip %d size %d\n", 1600 (phba->nvmet_support ? "NVME" : "NVMET"), 1601 (state ? "Enabled" : "Disabled"), 1602 index, skip, phba->nvmeio_trc_size); 1603 1604 if (!phba->nvmeio_trc || state) 1605 return len; 1606 1607 /* trace MUST bhe off to continue */ 1608 1609 for (i = index; i < phba->nvmeio_trc_size; i++) { 1610 if (skip) { 1611 skip--; 1612 continue; 1613 } 1614 dtp = phba->nvmeio_trc + i; 1615 phba->nvmeio_trc_output_idx++; 1616 1617 if (!dtp->fmt) 1618 continue; 1619 1620 len += scnprintf(buf + len, size - len, dtp->fmt, 1621 dtp->data1, dtp->data2, dtp->data3); 1622 1623 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1624 phba->nvmeio_trc_output_idx = 0; 1625 len += scnprintf(buf + len, size - len, 1626 "Trace Complete\n"); 1627 goto out; 1628 } 1629 1630 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1631 len += scnprintf(buf + len, size - len, 1632 "Trace Continue (%d of %d)\n", 1633 phba->nvmeio_trc_output_idx, 1634 phba->nvmeio_trc_size); 1635 goto out; 1636 } 1637 } 1638 for (i = 0; i < index; i++) { 1639 if (skip) { 1640 skip--; 1641 continue; 1642 } 1643 dtp = phba->nvmeio_trc + i; 1644 phba->nvmeio_trc_output_idx++; 1645 1646 if (!dtp->fmt) 1647 continue; 1648 1649 len += scnprintf(buf + len, size - len, dtp->fmt, 1650 dtp->data1, dtp->data2, dtp->data3); 1651 1652 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1653 phba->nvmeio_trc_output_idx = 0; 1654 len += scnprintf(buf + len, size - len, 1655 "Trace Complete\n"); 1656 goto out; 1657 } 1658 1659 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1660 len += scnprintf(buf + len, size - len, 1661 "Trace Continue (%d of %d)\n", 1662 phba->nvmeio_trc_output_idx, 1663 phba->nvmeio_trc_size); 1664 goto out; 1665 } 1666 } 1667 1668 len += scnprintf(buf + len, size - len, 1669 "Trace Done\n"); 1670 out: 1671 return len; 1672 } 1673 1674 /** 1675 * lpfc_debugfs_hdwqstat_data - Dump I/O stats to a buffer 1676 * @vport: The vport to gather target node info from. 1677 * @buf: The buffer to dump log into. 1678 * @size: The maximum amount of data to process. 1679 * 1680 * Description: 1681 * This routine dumps the NVME + SCSI statistics associated with @vport 1682 * 1683 * Return Value: 1684 * This routine returns the amount of bytes that were dumped into @buf and will 1685 * not exceed @size. 1686 **/ 1687 static int 1688 lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size) 1689 { 1690 struct lpfc_hba *phba = vport->phba; 1691 struct lpfc_hdwq_stat *c_stat; 1692 int i, j, len; 1693 uint32_t tot_xmt; 1694 uint32_t tot_rcv; 1695 uint32_t tot_cmpl; 1696 size_t used = strnlen(buf, size); 1697 struct seq_buf s; 1698 1699 seq_buf_init(&s, buf + used, size - used); 1700 1701 seq_buf_printf(&s, "HDWQ Stats:\n\n"); 1702 1703 seq_buf_printf(&s, "(NVME Accounting: %s) ", 1704 (phba->hdwqstat_on & 1705 (LPFC_CHECK_NVME_IO | LPFC_CHECK_NVMET_IO) ? 1706 "Enabled" : "Disabled")); 1707 1708 seq_buf_printf(&s, "(SCSI Accounting: %s) ", 1709 (phba->hdwqstat_on & LPFC_CHECK_SCSI_IO ? 1710 "Enabled" : "Disabled")); 1711 1712 seq_buf_printf(&s, "\n\n"); 1713 1714 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1715 tot_rcv = 0; 1716 tot_xmt = 0; 1717 tot_cmpl = 0; 1718 1719 for_each_present_cpu(j) { 1720 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, j); 1721 1722 /* Only display for this HDWQ */ 1723 if (i != c_stat->hdwq_no) 1724 continue; 1725 1726 /* Only display non-zero counters */ 1727 if (!c_stat->xmt_io && !c_stat->cmpl_io && 1728 !c_stat->rcv_io) 1729 continue; 1730 1731 /* Print HDWQ string only the first time */ 1732 if (!tot_xmt && !tot_cmpl && !tot_rcv) 1733 seq_buf_printf(&s, "[HDWQ %d]:\t", i); 1734 1735 tot_xmt += c_stat->xmt_io; 1736 tot_cmpl += c_stat->cmpl_io; 1737 if (phba->nvmet_support) 1738 tot_rcv += c_stat->rcv_io; 1739 1740 seq_buf_printf(&s, "| [CPU %d]: ", j); 1741 1742 if (phba->nvmet_support) 1743 seq_buf_printf(&s, 1744 "XMT 0x%x CMPL 0x%x RCV 0x%x |", 1745 c_stat->xmt_io, c_stat->cmpl_io, 1746 c_stat->rcv_io); 1747 else 1748 seq_buf_printf(&s, 1749 "XMT 0x%x CMPL 0x%x |", 1750 c_stat->xmt_io, c_stat->cmpl_io); 1751 1752 if (seq_buf_has_overflowed(&s)) 1753 break; 1754 } 1755 1756 if (seq_buf_has_overflowed(&s)) 1757 break; 1758 1759 /* Check if nothing to display */ 1760 if (!tot_xmt && !tot_cmpl && !tot_rcv) 1761 continue; 1762 1763 seq_buf_printf(&s, "\t->\t[HDWQ Total: "); 1764 1765 if (phba->nvmet_support) 1766 seq_buf_printf(&s, 1767 "XMT 0x%x CMPL 0x%x RCV 0x%x]\n\n", 1768 tot_xmt, tot_cmpl, tot_rcv); 1769 else 1770 seq_buf_printf(&s, 1771 "XMT 0x%x CMPL 0x%x]\n\n", 1772 tot_xmt, tot_cmpl); 1773 } 1774 1775 len = strnlen(buf, size); 1776 return len; 1777 } 1778 1779 #endif 1780 1781 /** 1782 * lpfc_debugfs_disc_trc - Store discovery trace log 1783 * @vport: The vport to associate this trace string with for retrieval. 1784 * @mask: Log entry classification. 1785 * @fmt: Format string to be displayed when dumping the log. 1786 * @data1: 1st data parameter to be applied to @fmt. 1787 * @data2: 2nd data parameter to be applied to @fmt. 1788 * @data3: 3rd data parameter to be applied to @fmt. 1789 * 1790 * Description: 1791 * This routine is used by the driver code to add a debugfs log entry to the 1792 * discovery trace buffer associated with @vport. Only entries with a @mask that 1793 * match the current debugfs discovery mask will be saved. Entries that do not 1794 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 1795 * printf when displaying the log. 1796 **/ 1797 inline void 1798 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 1799 uint32_t data1, uint32_t data2, uint32_t data3) 1800 { 1801 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1802 struct lpfc_debugfs_trc *dtp; 1803 int index; 1804 1805 if (!(lpfc_debugfs_mask_disc_trc & mask)) 1806 return; 1807 1808 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 1809 !vport || !vport->disc_trc) 1810 return; 1811 1812 index = atomic_inc_return(&vport->disc_trc_cnt) & 1813 (lpfc_debugfs_max_disc_trc - 1); 1814 dtp = vport->disc_trc + index; 1815 dtp->fmt = fmt; 1816 dtp->data1 = data1; 1817 dtp->data2 = data2; 1818 dtp->data3 = data3; 1819 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1820 dtp->jif = jiffies; 1821 #endif 1822 return; 1823 } 1824 1825 /** 1826 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 1827 * @phba: The phba to associate this trace string with for retrieval. 1828 * @fmt: Format string to be displayed when dumping the log. 1829 * @data1: 1st data parameter to be applied to @fmt. 1830 * @data2: 2nd data parameter to be applied to @fmt. 1831 * @data3: 3rd data parameter to be applied to @fmt. 1832 * 1833 * Description: 1834 * This routine is used by the driver code to add a debugfs log entry to the 1835 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 1836 * @data3 are used like printf when displaying the log. 1837 **/ 1838 inline void 1839 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 1840 uint32_t data1, uint32_t data2, uint32_t data3) 1841 { 1842 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1843 struct lpfc_debugfs_trc *dtp; 1844 int index; 1845 1846 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 1847 !phba || !phba->slow_ring_trc) 1848 return; 1849 1850 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 1851 (lpfc_debugfs_max_slow_ring_trc - 1); 1852 dtp = phba->slow_ring_trc + index; 1853 dtp->fmt = fmt; 1854 dtp->data1 = data1; 1855 dtp->data2 = data2; 1856 dtp->data3 = data3; 1857 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1858 dtp->jif = jiffies; 1859 #endif 1860 return; 1861 } 1862 1863 /** 1864 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log 1865 * @phba: The phba to associate this trace string with for retrieval. 1866 * @fmt: Format string to be displayed when dumping the log. 1867 * @data1: 1st data parameter to be applied to @fmt. 1868 * @data2: 2nd data parameter to be applied to @fmt. 1869 * @data3: 3rd data parameter to be applied to @fmt. 1870 * 1871 * Description: 1872 * This routine is used by the driver code to add a debugfs log entry to the 1873 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and 1874 * @data3 are used like printf when displaying the log. 1875 **/ 1876 inline void 1877 lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, 1878 uint16_t data1, uint16_t data2, uint32_t data3) 1879 { 1880 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1881 struct lpfc_debugfs_nvmeio_trc *dtp; 1882 int index; 1883 1884 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) 1885 return; 1886 1887 index = atomic_inc_return(&phba->nvmeio_trc_cnt) & 1888 (phba->nvmeio_trc_size - 1); 1889 dtp = phba->nvmeio_trc + index; 1890 dtp->fmt = fmt; 1891 dtp->data1 = data1; 1892 dtp->data2 = data2; 1893 dtp->data3 = data3; 1894 #endif 1895 } 1896 1897 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1898 /** 1899 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 1900 * @inode: The inode pointer that contains a vport pointer. 1901 * @file: The file pointer to attach the log output. 1902 * 1903 * Description: 1904 * This routine is the entry point for the debugfs open file operation. It gets 1905 * the vport from the i_private field in @inode, allocates the necessary buffer 1906 * for the log, fills the buffer from the in-memory log for this vport, and then 1907 * returns a pointer to that log in the private_data field in @file. 1908 * 1909 * Returns: 1910 * This function returns zero if successful. On error it will return a negative 1911 * error value. 1912 **/ 1913 static int 1914 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 1915 { 1916 struct lpfc_vport *vport = inode->i_private; 1917 struct lpfc_debug *debug; 1918 int size; 1919 int rc = -ENOMEM; 1920 1921 if (!lpfc_debugfs_max_disc_trc) { 1922 rc = -ENOSPC; 1923 goto out; 1924 } 1925 1926 debug = kmalloc_obj(*debug); 1927 if (!debug) 1928 goto out; 1929 1930 /* Round to page boundary */ 1931 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1932 size = PAGE_ALIGN(size); 1933 1934 debug->buffer = kmalloc(size, GFP_KERNEL); 1935 if (!debug->buffer) { 1936 kfree(debug); 1937 goto out; 1938 } 1939 1940 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 1941 file->private_data = debug; 1942 1943 rc = 0; 1944 out: 1945 return rc; 1946 } 1947 1948 /** 1949 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 1950 * @inode: The inode pointer that contains a vport pointer. 1951 * @file: The file pointer to attach the log output. 1952 * 1953 * Description: 1954 * This routine is the entry point for the debugfs open file operation. It gets 1955 * the vport from the i_private field in @inode, allocates the necessary buffer 1956 * for the log, fills the buffer from the in-memory log for this vport, and then 1957 * returns a pointer to that log in the private_data field in @file. 1958 * 1959 * Returns: 1960 * This function returns zero if successful. On error it will return a negative 1961 * error value. 1962 **/ 1963 static int 1964 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 1965 { 1966 struct lpfc_hba *phba = inode->i_private; 1967 struct lpfc_debug *debug; 1968 int size; 1969 int rc = -ENOMEM; 1970 1971 if (!lpfc_debugfs_max_slow_ring_trc) { 1972 rc = -ENOSPC; 1973 goto out; 1974 } 1975 1976 debug = kmalloc_obj(*debug); 1977 if (!debug) 1978 goto out; 1979 1980 /* Round to page boundary */ 1981 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1982 size = PAGE_ALIGN(size); 1983 1984 debug->buffer = kmalloc(size, GFP_KERNEL); 1985 if (!debug->buffer) { 1986 kfree(debug); 1987 goto out; 1988 } 1989 1990 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 1991 file->private_data = debug; 1992 1993 rc = 0; 1994 out: 1995 return rc; 1996 } 1997 1998 /** 1999 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 2000 * @inode: The inode pointer that contains a vport pointer. 2001 * @file: The file pointer to attach the log output. 2002 * 2003 * Description: 2004 * This routine is the entry point for the debugfs open file operation. It gets 2005 * the vport from the i_private field in @inode, allocates the necessary buffer 2006 * for the log, fills the buffer from the in-memory log for this vport, and then 2007 * returns a pointer to that log in the private_data field in @file. 2008 * 2009 * Returns: 2010 * This function returns zero if successful. On error it will return a negative 2011 * error value. 2012 **/ 2013 static int 2014 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 2015 { 2016 struct lpfc_hba *phba = inode->i_private; 2017 struct lpfc_debug *debug; 2018 int rc = -ENOMEM; 2019 2020 debug = kmalloc_obj(*debug); 2021 if (!debug) 2022 goto out; 2023 2024 /* Round to page boundary */ 2025 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 2026 if (!debug->buffer) { 2027 kfree(debug); 2028 goto out; 2029 } 2030 2031 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 2032 LPFC_HBQINFO_SIZE); 2033 file->private_data = debug; 2034 2035 rc = 0; 2036 out: 2037 return rc; 2038 } 2039 2040 /** 2041 * lpfc_debugfs_multixripools_open - Open the multixripool debugfs buffer 2042 * @inode: The inode pointer that contains a hba pointer. 2043 * @file: The file pointer to attach the log output. 2044 * 2045 * Description: 2046 * This routine is the entry point for the debugfs open file operation. It gets 2047 * the hba from the i_private field in @inode, allocates the necessary buffer 2048 * for the log, fills the buffer from the in-memory log for this hba, and then 2049 * returns a pointer to that log in the private_data field in @file. 2050 * 2051 * Returns: 2052 * This function returns zero if successful. On error it will return a negative 2053 * error value. 2054 **/ 2055 static int 2056 lpfc_debugfs_multixripools_open(struct inode *inode, struct file *file) 2057 { 2058 struct lpfc_hba *phba = inode->i_private; 2059 struct lpfc_debug *debug; 2060 int rc = -ENOMEM; 2061 2062 debug = kmalloc_obj(*debug); 2063 if (!debug) 2064 goto out; 2065 2066 /* Round to page boundary */ 2067 debug->buffer = kzalloc(LPFC_DUMP_MULTIXRIPOOL_SIZE, GFP_KERNEL); 2068 if (!debug->buffer) { 2069 kfree(debug); 2070 goto out; 2071 } 2072 2073 debug->len = lpfc_debugfs_multixripools_data( 2074 phba, debug->buffer, LPFC_DUMP_MULTIXRIPOOL_SIZE); 2075 2076 debug->i_private = inode->i_private; 2077 file->private_data = debug; 2078 2079 rc = 0; 2080 out: 2081 return rc; 2082 } 2083 2084 #ifdef LPFC_HDWQ_LOCK_STAT 2085 /** 2086 * lpfc_debugfs_lockstat_open - Open the lockstat debugfs buffer 2087 * @inode: The inode pointer that contains a vport pointer. 2088 * @file: The file pointer to attach the log output. 2089 * 2090 * Description: 2091 * This routine is the entry point for the debugfs open file operation. It gets 2092 * the vport from the i_private field in @inode, allocates the necessary buffer 2093 * for the log, fills the buffer from the in-memory log for this vport, and then 2094 * returns a pointer to that log in the private_data field in @file. 2095 * 2096 * Returns: 2097 * This function returns zero if successful. On error it will return a negative 2098 * error value. 2099 **/ 2100 static int 2101 lpfc_debugfs_lockstat_open(struct inode *inode, struct file *file) 2102 { 2103 struct lpfc_hba *phba = inode->i_private; 2104 struct lpfc_debug *debug; 2105 int rc = -ENOMEM; 2106 2107 debug = kmalloc_obj(*debug); 2108 if (!debug) 2109 goto out; 2110 2111 /* Round to page boundary */ 2112 debug->buffer = kmalloc(LPFC_HDWQINFO_SIZE, GFP_KERNEL); 2113 if (!debug->buffer) { 2114 kfree(debug); 2115 goto out; 2116 } 2117 2118 debug->len = lpfc_debugfs_lockstat_data(phba, debug->buffer, 2119 LPFC_HBQINFO_SIZE); 2120 file->private_data = debug; 2121 2122 rc = 0; 2123 out: 2124 return rc; 2125 } 2126 2127 static ssize_t 2128 lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf, 2129 size_t nbytes, loff_t *ppos) 2130 { 2131 struct lpfc_debug *debug = file->private_data; 2132 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2133 struct lpfc_sli4_hdw_queue *qp; 2134 char mybuf[64]; 2135 char *pbuf; 2136 int i; 2137 size_t bsize; 2138 2139 memset(mybuf, 0, sizeof(mybuf)); 2140 2141 bsize = min(nbytes, (sizeof(mybuf) - 1)); 2142 2143 if (copy_from_user(mybuf, buf, bsize)) 2144 return -EFAULT; 2145 pbuf = &mybuf[0]; 2146 2147 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2148 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2149 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2150 qp = &phba->sli4_hba.hdwq[i]; 2151 qp->lock_conflict.alloc_xri_get = 0; 2152 qp->lock_conflict.alloc_xri_put = 0; 2153 qp->lock_conflict.free_xri = 0; 2154 qp->lock_conflict.wq_access = 0; 2155 qp->lock_conflict.alloc_pvt_pool = 0; 2156 qp->lock_conflict.mv_from_pvt_pool = 0; 2157 qp->lock_conflict.mv_to_pub_pool = 0; 2158 qp->lock_conflict.mv_to_pvt_pool = 0; 2159 qp->lock_conflict.free_pvt_pool = 0; 2160 qp->lock_conflict.free_pub_pool = 0; 2161 qp->lock_conflict.wq_access = 0; 2162 } 2163 } 2164 return bsize; 2165 } 2166 #endif 2167 2168 static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba, 2169 char *buffer, int size) 2170 { 2171 int copied = 0; 2172 struct lpfc_dmabuf *dmabuf, *next; 2173 2174 memset(buffer, 0, size); 2175 2176 spin_lock_irq(&phba->ras_fwlog_lock); 2177 if (phba->ras_fwlog.state != ACTIVE) { 2178 spin_unlock_irq(&phba->ras_fwlog_lock); 2179 return -EINVAL; 2180 } 2181 spin_unlock_irq(&phba->ras_fwlog_lock); 2182 2183 list_for_each_entry_safe(dmabuf, next, 2184 &phba->ras_fwlog.fwlog_buff_list, list) { 2185 /* Check if copying will go over size and a '\0' char */ 2186 if ((copied + LPFC_RAS_MAX_ENTRY_SIZE) >= (size - 1)) { 2187 memcpy(buffer + copied, dmabuf->virt, 2188 size - copied - 1); 2189 copied += size - copied - 1; 2190 break; 2191 } 2192 memcpy(buffer + copied, dmabuf->virt, LPFC_RAS_MAX_ENTRY_SIZE); 2193 copied += LPFC_RAS_MAX_ENTRY_SIZE; 2194 } 2195 return copied; 2196 } 2197 2198 static int 2199 lpfc_debugfs_ras_log_release(struct inode *inode, struct file *file) 2200 { 2201 struct lpfc_debug *debug = file->private_data; 2202 2203 vfree(debug->buffer); 2204 kfree(debug); 2205 2206 return 0; 2207 } 2208 2209 /** 2210 * lpfc_debugfs_ras_log_open - Open the RAS log debugfs buffer 2211 * @inode: The inode pointer that contains a vport pointer. 2212 * @file: The file pointer to attach the log output. 2213 * 2214 * Description: 2215 * This routine is the entry point for the debugfs open file operation. It gets 2216 * the vport from the i_private field in @inode, allocates the necessary buffer 2217 * for the log, fills the buffer from the in-memory log for this vport, and then 2218 * returns a pointer to that log in the private_data field in @file. 2219 * 2220 * Returns: 2221 * This function returns zero if successful. On error it will return a negative 2222 * error value. 2223 **/ 2224 static int 2225 lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file) 2226 { 2227 struct lpfc_hba *phba = inode->i_private; 2228 struct lpfc_debug *debug; 2229 int size; 2230 int rc = -ENOMEM; 2231 2232 spin_lock_irq(&phba->ras_fwlog_lock); 2233 if (phba->ras_fwlog.state != ACTIVE) { 2234 spin_unlock_irq(&phba->ras_fwlog_lock); 2235 rc = -EINVAL; 2236 goto out; 2237 } 2238 spin_unlock_irq(&phba->ras_fwlog_lock); 2239 2240 if (check_mul_overflow(LPFC_RAS_MIN_BUFF_POST_SIZE, 2241 phba->cfg_ras_fwlog_buffsize, &size)) 2242 goto out; 2243 2244 debug = kzalloc_obj(*debug); 2245 if (!debug) 2246 goto out; 2247 2248 debug->buffer = vmalloc(size); 2249 if (!debug->buffer) 2250 goto free_debug; 2251 2252 debug->len = lpfc_debugfs_ras_log_data(phba, debug->buffer, size); 2253 if (debug->len < 0) { 2254 rc = -EINVAL; 2255 goto free_buffer; 2256 } 2257 file->private_data = debug; 2258 2259 return 0; 2260 2261 free_buffer: 2262 vfree(debug->buffer); 2263 free_debug: 2264 kfree(debug); 2265 out: 2266 return rc; 2267 } 2268 2269 /** 2270 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 2271 * @inode: The inode pointer that contains a vport pointer. 2272 * @file: The file pointer to attach the log output. 2273 * 2274 * Description: 2275 * This routine is the entry point for the debugfs open file operation. It gets 2276 * the vport from the i_private field in @inode, allocates the necessary buffer 2277 * for the log, fills the buffer from the in-memory log for this vport, and then 2278 * returns a pointer to that log in the private_data field in @file. 2279 * 2280 * Returns: 2281 * This function returns zero if successful. On error it will return a negative 2282 * error value. 2283 **/ 2284 static int 2285 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 2286 { 2287 struct lpfc_hba *phba = inode->i_private; 2288 struct lpfc_debug *debug; 2289 int rc = -ENOMEM; 2290 2291 debug = kmalloc_obj(*debug); 2292 if (!debug) 2293 goto out; 2294 2295 /* Round to page boundary */ 2296 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 2297 if (!debug->buffer) { 2298 kfree(debug); 2299 goto out; 2300 } 2301 2302 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 2303 LPFC_DUMPHBASLIM_SIZE); 2304 file->private_data = debug; 2305 2306 rc = 0; 2307 out: 2308 return rc; 2309 } 2310 2311 /** 2312 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 2313 * @inode: The inode pointer that contains a vport pointer. 2314 * @file: The file pointer to attach the log output. 2315 * 2316 * Description: 2317 * This routine is the entry point for the debugfs open file operation. It gets 2318 * the vport from the i_private field in @inode, allocates the necessary buffer 2319 * for the log, fills the buffer from the in-memory log for this vport, and then 2320 * returns a pointer to that log in the private_data field in @file. 2321 * 2322 * Returns: 2323 * This function returns zero if successful. On error it will return a negative 2324 * error value. 2325 **/ 2326 static int 2327 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 2328 { 2329 struct lpfc_hba *phba = inode->i_private; 2330 struct lpfc_debug *debug; 2331 int rc = -ENOMEM; 2332 2333 debug = kmalloc_obj(*debug); 2334 if (!debug) 2335 goto out; 2336 2337 /* Round to page boundary */ 2338 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 2339 if (!debug->buffer) { 2340 kfree(debug); 2341 goto out; 2342 } 2343 2344 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 2345 LPFC_DUMPHOSTSLIM_SIZE); 2346 file->private_data = debug; 2347 2348 rc = 0; 2349 out: 2350 return rc; 2351 } 2352 2353 static ssize_t 2354 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 2355 size_t nbytes, loff_t *ppos) 2356 { 2357 struct lpfc_hba *phba = file->private_data; 2358 int kind = debugfs_get_aux_num(file); 2359 char cbuf[32] = {0}; 2360 int cnt = 0; 2361 2362 switch (kind) { 2363 case writeGuard: 2364 cnt = scnprintf(cbuf, sizeof(cbuf), "%u\n", 2365 phba->lpfc_injerr_wgrd_cnt); 2366 break; 2367 case writeApp: 2368 cnt = scnprintf(cbuf, sizeof(cbuf), "%u\n", 2369 phba->lpfc_injerr_wapp_cnt); 2370 break; 2371 case writeRef: 2372 cnt = scnprintf(cbuf, sizeof(cbuf), "%u\n", 2373 phba->lpfc_injerr_wref_cnt); 2374 break; 2375 case readGuard: 2376 cnt = scnprintf(cbuf, sizeof(cbuf), "%u\n", 2377 phba->lpfc_injerr_rgrd_cnt); 2378 break; 2379 case readApp: 2380 cnt = scnprintf(cbuf, sizeof(cbuf), "%u\n", 2381 phba->lpfc_injerr_rapp_cnt); 2382 break; 2383 case readRef: 2384 cnt = scnprintf(cbuf, sizeof(cbuf), "%u\n", 2385 phba->lpfc_injerr_rref_cnt); 2386 break; 2387 case InjErrNPortID: 2388 cnt = scnprintf(cbuf, sizeof(cbuf), "0x%06x\n", 2389 phba->lpfc_injerr_nportid); 2390 break; 2391 case InjErrWWPN: 2392 cnt = scnprintf(cbuf, sizeof(cbuf), "0x%016llx\n", 2393 be64_to_cpu(phba->lpfc_injerr_wwpn.u.wwn_be)); 2394 break; 2395 case InjErrLBA: 2396 if (phba->lpfc_injerr_lba == LPFC_INJERR_LBA_OFF) 2397 cnt = scnprintf(cbuf, sizeof(cbuf), "off\n"); 2398 else 2399 cnt = scnprintf(cbuf, sizeof(cbuf), "0x%llx\n", 2400 (uint64_t)phba->lpfc_injerr_lba); 2401 break; 2402 default: 2403 lpfc_log_msg(phba, KERN_WARNING, LOG_INIT, 2404 "0547 Unknown debugfs error injection entry\n"); 2405 break; 2406 } 2407 2408 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 2409 } 2410 2411 static ssize_t 2412 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 2413 size_t nbytes, loff_t *ppos) 2414 { 2415 struct lpfc_hba *phba = file->private_data; 2416 int kind = debugfs_get_aux_num(file); 2417 char dstbuf[33] = {0}; 2418 unsigned long long tmp; 2419 unsigned long size; 2420 2421 size = (nbytes < (sizeof(dstbuf) - 1)) ? nbytes : (sizeof(dstbuf) - 1); 2422 if (copy_from_user(dstbuf, buf, size)) 2423 return -EFAULT; 2424 2425 if (kstrtoull(dstbuf, 0, &tmp)) { 2426 if (kind != InjErrLBA || !strstr(dstbuf, "off")) 2427 return -EINVAL; 2428 } 2429 2430 switch (kind) { 2431 case writeGuard: 2432 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 2433 break; 2434 case writeApp: 2435 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 2436 break; 2437 case writeRef: 2438 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 2439 break; 2440 case readGuard: 2441 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 2442 break; 2443 case readApp: 2444 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 2445 break; 2446 case readRef: 2447 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 2448 break; 2449 case InjErrLBA: 2450 if (strstr(dstbuf, "off")) 2451 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 2452 else 2453 phba->lpfc_injerr_lba = (sector_t)tmp; 2454 break; 2455 case InjErrNPortID: 2456 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 2457 break; 2458 case InjErrWWPN: 2459 phba->lpfc_injerr_wwpn.u.wwn_be = cpu_to_be64(tmp); 2460 break; 2461 default: 2462 lpfc_log_msg(phba, KERN_WARNING, LOG_INIT, 2463 "0548 Unknown debugfs error injection entry\n"); 2464 break; 2465 } 2466 return nbytes; 2467 } 2468 2469 static int 2470 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 2471 { 2472 return 0; 2473 } 2474 2475 /** 2476 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 2477 * @inode: The inode pointer that contains a vport pointer. 2478 * @file: The file pointer to attach the log output. 2479 * 2480 * Description: 2481 * This routine is the entry point for the debugfs open file operation. It gets 2482 * the vport from the i_private field in @inode, allocates the necessary buffer 2483 * for the log, fills the buffer from the in-memory log for this vport, and then 2484 * returns a pointer to that log in the private_data field in @file. 2485 * 2486 * Returns: 2487 * This function returns zero if successful. On error it will return a negative 2488 * error value. 2489 **/ 2490 static int 2491 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 2492 { 2493 struct lpfc_vport *vport = inode->i_private; 2494 struct lpfc_debug *debug; 2495 int rc = -ENOMEM; 2496 2497 debug = kmalloc_obj(*debug); 2498 if (!debug) 2499 goto out; 2500 2501 /* Round to page boundary */ 2502 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 2503 if (!debug->buffer) { 2504 kfree(debug); 2505 goto out; 2506 } 2507 2508 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 2509 LPFC_NODELIST_SIZE); 2510 file->private_data = debug; 2511 2512 rc = 0; 2513 out: 2514 return rc; 2515 } 2516 2517 /** 2518 * lpfc_debugfs_lseek - Seek through a debugfs file 2519 * @file: The file pointer to seek through. 2520 * @off: The offset to seek to or the amount to seek by. 2521 * @whence: Indicates how to seek. 2522 * 2523 * Description: 2524 * This routine is the entry point for the debugfs lseek file operation. The 2525 * @whence parameter indicates whether @off is the offset to directly seek to, 2526 * or if it is a value to seek forward or reverse by. This function figures out 2527 * what the new offset of the debugfs file will be and assigns that value to the 2528 * f_pos field of @file. 2529 * 2530 * Returns: 2531 * This function returns the new offset if successful and returns a negative 2532 * error if unable to process the seek. 2533 **/ 2534 static loff_t 2535 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 2536 { 2537 struct lpfc_debug *debug = file->private_data; 2538 return fixed_size_llseek(file, off, whence, debug->len); 2539 } 2540 2541 /** 2542 * lpfc_debugfs_read - Read a debugfs file 2543 * @file: The file pointer to read from. 2544 * @buf: The buffer to copy the data to. 2545 * @nbytes: The number of bytes to read. 2546 * @ppos: The position in the file to start reading from. 2547 * 2548 * Description: 2549 * This routine reads data from from the buffer indicated in the private_data 2550 * field of @file. It will start reading at @ppos and copy up to @nbytes of 2551 * data to @buf. 2552 * 2553 * Returns: 2554 * This function returns the amount of data that was read (this could be less 2555 * than @nbytes if the end of the file was reached) or a negative error value. 2556 **/ 2557 static ssize_t 2558 lpfc_debugfs_read(struct file *file, char __user *buf, 2559 size_t nbytes, loff_t *ppos) 2560 { 2561 struct lpfc_debug *debug = file->private_data; 2562 2563 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 2564 debug->len); 2565 } 2566 2567 /** 2568 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 2569 * @inode: The inode pointer that contains a vport pointer. (unused) 2570 * @file: The file pointer that contains the buffer to release. 2571 * 2572 * Description: 2573 * This routine frees the buffer that was allocated when the debugfs file was 2574 * opened. 2575 * 2576 * Returns: 2577 * This function returns zero. 2578 **/ 2579 static int 2580 lpfc_debugfs_release(struct inode *inode, struct file *file) 2581 { 2582 struct lpfc_debug *debug = file->private_data; 2583 2584 kfree(debug->buffer); 2585 kfree(debug); 2586 2587 return 0; 2588 } 2589 2590 /** 2591 * lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics 2592 * @file: The file pointer to read from. 2593 * @buf: The buffer to copy the user data from. 2594 * @nbytes: The number of bytes to get. 2595 * @ppos: The position in the file to start reading from. 2596 * 2597 * Description: 2598 * This routine clears multi-XRI pools statistics when buf contains "clear". 2599 * 2600 * Return Value: 2601 * It returns the @nbytges passing in from debugfs user space when successful. 2602 * In case of error conditions, it returns proper error code back to the user 2603 * space. 2604 **/ 2605 static ssize_t 2606 lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf, 2607 size_t nbytes, loff_t *ppos) 2608 { 2609 struct lpfc_debug *debug = file->private_data; 2610 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2611 char mybuf[64]; 2612 char *pbuf; 2613 u32 i; 2614 u32 hwq_count; 2615 struct lpfc_sli4_hdw_queue *qp; 2616 struct lpfc_multixri_pool *multixri_pool; 2617 2618 if (nbytes > sizeof(mybuf) - 1) 2619 nbytes = sizeof(mybuf) - 1; 2620 2621 memset(mybuf, 0, sizeof(mybuf)); 2622 2623 if (copy_from_user(mybuf, buf, nbytes)) 2624 return -EFAULT; 2625 pbuf = &mybuf[0]; 2626 2627 if ((strncmp(pbuf, "clear", strlen("clear"))) == 0) { 2628 hwq_count = phba->cfg_hdw_queue; 2629 for (i = 0; i < hwq_count; i++) { 2630 qp = &phba->sli4_hba.hdwq[i]; 2631 multixri_pool = qp->p_multixri_pool; 2632 if (!multixri_pool) 2633 continue; 2634 2635 qp->empty_io_bufs = 0; 2636 multixri_pool->pbl_empty_count = 0; 2637 #ifdef LPFC_MXP_STAT 2638 multixri_pool->above_limit_count = 0; 2639 multixri_pool->below_limit_count = 0; 2640 multixri_pool->stat_max_hwm = 0; 2641 multixri_pool->local_pbl_hit_count = 0; 2642 multixri_pool->other_pbl_hit_count = 0; 2643 2644 multixri_pool->stat_pbl_count = 0; 2645 multixri_pool->stat_pvt_count = 0; 2646 multixri_pool->stat_busy_count = 0; 2647 multixri_pool->stat_snapshot_taken = 0; 2648 #endif 2649 } 2650 return strlen(pbuf); 2651 } 2652 2653 return -EINVAL; 2654 } 2655 2656 static int 2657 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 2658 { 2659 struct lpfc_vport *vport = inode->i_private; 2660 struct lpfc_debug *debug; 2661 int rc = -ENOMEM; 2662 2663 debug = kmalloc_obj(*debug); 2664 if (!debug) 2665 goto out; 2666 2667 /* Round to page boundary */ 2668 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 2669 if (!debug->buffer) { 2670 kfree(debug); 2671 goto out; 2672 } 2673 2674 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 2675 LPFC_NVMESTAT_SIZE); 2676 2677 debug->i_private = inode->i_private; 2678 file->private_data = debug; 2679 2680 rc = 0; 2681 out: 2682 return rc; 2683 } 2684 2685 static ssize_t 2686 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 2687 size_t nbytes, loff_t *ppos) 2688 { 2689 struct lpfc_debug *debug = file->private_data; 2690 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2691 struct lpfc_hba *phba = vport->phba; 2692 struct lpfc_nvmet_tgtport *tgtp; 2693 char mybuf[64]; 2694 char *pbuf; 2695 2696 if (!phba->targetport) 2697 return -ENXIO; 2698 2699 if (nbytes > sizeof(mybuf) - 1) 2700 nbytes = sizeof(mybuf) - 1; 2701 2702 memset(mybuf, 0, sizeof(mybuf)); 2703 2704 if (copy_from_user(mybuf, buf, nbytes)) 2705 return -EFAULT; 2706 pbuf = &mybuf[0]; 2707 2708 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2709 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2710 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2711 atomic_set(&tgtp->rcv_ls_req_in, 0); 2712 atomic_set(&tgtp->rcv_ls_req_out, 0); 2713 atomic_set(&tgtp->rcv_ls_req_drop, 0); 2714 atomic_set(&tgtp->xmt_ls_abort, 0); 2715 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 2716 atomic_set(&tgtp->xmt_ls_rsp, 0); 2717 atomic_set(&tgtp->xmt_ls_drop, 0); 2718 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 2719 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 2720 2721 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 2722 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 2723 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 2724 atomic_set(&tgtp->xmt_fcp_drop, 0); 2725 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 2726 atomic_set(&tgtp->xmt_fcp_read, 0); 2727 atomic_set(&tgtp->xmt_fcp_write, 0); 2728 atomic_set(&tgtp->xmt_fcp_rsp, 0); 2729 atomic_set(&tgtp->xmt_fcp_release, 0); 2730 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 2731 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 2732 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 2733 2734 atomic_set(&tgtp->xmt_fcp_abort, 0); 2735 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 2736 atomic_set(&tgtp->xmt_abort_sol, 0); 2737 atomic_set(&tgtp->xmt_abort_unsol, 0); 2738 atomic_set(&tgtp->xmt_abort_rsp, 0); 2739 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 2740 } 2741 return nbytes; 2742 } 2743 2744 static int 2745 lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file) 2746 { 2747 struct lpfc_vport *vport = inode->i_private; 2748 struct lpfc_debug *debug; 2749 int rc = -ENOMEM; 2750 2751 debug = kmalloc_obj(*debug); 2752 if (!debug) 2753 goto out; 2754 2755 /* Round to page boundary */ 2756 debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL); 2757 if (!debug->buffer) { 2758 kfree(debug); 2759 goto out; 2760 } 2761 2762 debug->len = lpfc_debugfs_scsistat_data(vport, debug->buffer, 2763 LPFC_SCSISTAT_SIZE); 2764 2765 debug->i_private = inode->i_private; 2766 file->private_data = debug; 2767 2768 rc = 0; 2769 out: 2770 return rc; 2771 } 2772 2773 static ssize_t 2774 lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf, 2775 size_t nbytes, loff_t *ppos) 2776 { 2777 struct lpfc_debug *debug = file->private_data; 2778 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2779 struct lpfc_hba *phba = vport->phba; 2780 char mybuf[6] = {0}; 2781 int i; 2782 2783 if (copy_from_user(mybuf, buf, (nbytes >= sizeof(mybuf)) ? 2784 (sizeof(mybuf) - 1) : nbytes)) 2785 return -EFAULT; 2786 2787 if ((strncmp(&mybuf[0], "reset", strlen("reset")) == 0) || 2788 (strncmp(&mybuf[0], "zero", strlen("zero")) == 0)) { 2789 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2790 memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0, 2791 sizeof(phba->sli4_hba.hdwq[i].scsi_cstat)); 2792 } 2793 } 2794 2795 return nbytes; 2796 } 2797 2798 static int 2799 lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file) 2800 { 2801 struct lpfc_vport *vport = inode->i_private; 2802 struct lpfc_debug *debug; 2803 int rc = -ENOMEM; 2804 2805 debug = kmalloc_obj(*debug); 2806 if (!debug) 2807 goto out; 2808 2809 /* Round to page boundary */ 2810 debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL); 2811 if (!debug->buffer) { 2812 kfree(debug); 2813 goto out; 2814 } 2815 2816 debug->len = lpfc_debugfs_ioktime_data(vport, debug->buffer, 2817 LPFC_IOKTIME_SIZE); 2818 2819 debug->i_private = inode->i_private; 2820 file->private_data = debug; 2821 2822 rc = 0; 2823 out: 2824 return rc; 2825 } 2826 2827 static ssize_t 2828 lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf, 2829 size_t nbytes, loff_t *ppos) 2830 { 2831 struct lpfc_debug *debug = file->private_data; 2832 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2833 struct lpfc_hba *phba = vport->phba; 2834 char mybuf[64]; 2835 char *pbuf; 2836 2837 if (nbytes > sizeof(mybuf) - 1) 2838 nbytes = sizeof(mybuf) - 1; 2839 2840 memset(mybuf, 0, sizeof(mybuf)); 2841 2842 if (copy_from_user(mybuf, buf, nbytes)) 2843 return -EFAULT; 2844 pbuf = &mybuf[0]; 2845 2846 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2847 phba->ktime_data_samples = 0; 2848 phba->ktime_status_samples = 0; 2849 phba->ktime_seg1_total = 0; 2850 phba->ktime_seg1_max = 0; 2851 phba->ktime_seg1_min = 0xffffffff; 2852 phba->ktime_seg2_total = 0; 2853 phba->ktime_seg2_max = 0; 2854 phba->ktime_seg2_min = 0xffffffff; 2855 phba->ktime_seg3_total = 0; 2856 phba->ktime_seg3_max = 0; 2857 phba->ktime_seg3_min = 0xffffffff; 2858 phba->ktime_seg4_total = 0; 2859 phba->ktime_seg4_max = 0; 2860 phba->ktime_seg4_min = 0xffffffff; 2861 phba->ktime_seg5_total = 0; 2862 phba->ktime_seg5_max = 0; 2863 phba->ktime_seg5_min = 0xffffffff; 2864 phba->ktime_seg6_total = 0; 2865 phba->ktime_seg6_max = 0; 2866 phba->ktime_seg6_min = 0xffffffff; 2867 phba->ktime_seg7_total = 0; 2868 phba->ktime_seg7_max = 0; 2869 phba->ktime_seg7_min = 0xffffffff; 2870 phba->ktime_seg8_total = 0; 2871 phba->ktime_seg8_max = 0; 2872 phba->ktime_seg8_min = 0xffffffff; 2873 phba->ktime_seg9_total = 0; 2874 phba->ktime_seg9_max = 0; 2875 phba->ktime_seg9_min = 0xffffffff; 2876 phba->ktime_seg10_total = 0; 2877 phba->ktime_seg10_max = 0; 2878 phba->ktime_seg10_min = 0xffffffff; 2879 2880 phba->ktime_on = 1; 2881 return strlen(pbuf); 2882 } else if ((strncmp(pbuf, "off", 2883 sizeof("off") - 1) == 0)) { 2884 phba->ktime_on = 0; 2885 return strlen(pbuf); 2886 } else if ((strncmp(pbuf, "zero", 2887 sizeof("zero") - 1) == 0)) { 2888 phba->ktime_data_samples = 0; 2889 phba->ktime_status_samples = 0; 2890 phba->ktime_seg1_total = 0; 2891 phba->ktime_seg1_max = 0; 2892 phba->ktime_seg1_min = 0xffffffff; 2893 phba->ktime_seg2_total = 0; 2894 phba->ktime_seg2_max = 0; 2895 phba->ktime_seg2_min = 0xffffffff; 2896 phba->ktime_seg3_total = 0; 2897 phba->ktime_seg3_max = 0; 2898 phba->ktime_seg3_min = 0xffffffff; 2899 phba->ktime_seg4_total = 0; 2900 phba->ktime_seg4_max = 0; 2901 phba->ktime_seg4_min = 0xffffffff; 2902 phba->ktime_seg5_total = 0; 2903 phba->ktime_seg5_max = 0; 2904 phba->ktime_seg5_min = 0xffffffff; 2905 phba->ktime_seg6_total = 0; 2906 phba->ktime_seg6_max = 0; 2907 phba->ktime_seg6_min = 0xffffffff; 2908 phba->ktime_seg7_total = 0; 2909 phba->ktime_seg7_max = 0; 2910 phba->ktime_seg7_min = 0xffffffff; 2911 phba->ktime_seg8_total = 0; 2912 phba->ktime_seg8_max = 0; 2913 phba->ktime_seg8_min = 0xffffffff; 2914 phba->ktime_seg9_total = 0; 2915 phba->ktime_seg9_max = 0; 2916 phba->ktime_seg9_min = 0xffffffff; 2917 phba->ktime_seg10_total = 0; 2918 phba->ktime_seg10_max = 0; 2919 phba->ktime_seg10_min = 0xffffffff; 2920 return strlen(pbuf); 2921 } 2922 return -EINVAL; 2923 } 2924 2925 static int 2926 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2927 { 2928 struct lpfc_hba *phba = inode->i_private; 2929 struct lpfc_debug *debug; 2930 int rc = -ENOMEM; 2931 2932 debug = kmalloc_obj(*debug); 2933 if (!debug) 2934 goto out; 2935 2936 /* Round to page boundary */ 2937 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2938 if (!debug->buffer) { 2939 kfree(debug); 2940 goto out; 2941 } 2942 2943 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2944 LPFC_NVMEIO_TRC_SIZE); 2945 2946 debug->i_private = inode->i_private; 2947 file->private_data = debug; 2948 2949 rc = 0; 2950 out: 2951 return rc; 2952 } 2953 2954 static ssize_t 2955 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2956 size_t nbytes, loff_t *ppos) 2957 { 2958 struct lpfc_debug *debug = file->private_data; 2959 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2960 int i; 2961 unsigned long sz; 2962 char mybuf[64]; 2963 char *pbuf; 2964 2965 if (nbytes > sizeof(mybuf) - 1) 2966 nbytes = sizeof(mybuf) - 1; 2967 2968 memset(mybuf, 0, sizeof(mybuf)); 2969 2970 if (copy_from_user(mybuf, buf, nbytes)) 2971 return -EFAULT; 2972 pbuf = &mybuf[0]; 2973 2974 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2976 "0570 nvmeio_trc_off\n"); 2977 phba->nvmeio_trc_output_idx = 0; 2978 phba->nvmeio_trc_on = 0; 2979 return strlen(pbuf); 2980 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2981 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2982 "0571 nvmeio_trc_on\n"); 2983 phba->nvmeio_trc_output_idx = 0; 2984 phba->nvmeio_trc_on = 1; 2985 return strlen(pbuf); 2986 } 2987 2988 /* We must be off to allocate the trace buffer */ 2989 if (phba->nvmeio_trc_on != 0) 2990 return -EINVAL; 2991 2992 /* If not on or off, the parameter is the trace buffer size */ 2993 i = kstrtoul(pbuf, 0, &sz); 2994 if (i) 2995 return -EINVAL; 2996 phba->nvmeio_trc_size = (uint32_t)sz; 2997 2998 /* It must be a power of 2 - round down */ 2999 i = 0; 3000 while (sz > 1) { 3001 sz = sz >> 1; 3002 i++; 3003 } 3004 sz = (1 << i); 3005 if (phba->nvmeio_trc_size != sz) 3006 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3007 "0572 nvmeio_trc_size changed to %ld\n", 3008 sz); 3009 phba->nvmeio_trc_size = (uint32_t)sz; 3010 3011 /* If one previously exists, free it */ 3012 kfree(phba->nvmeio_trc); 3013 3014 /* Allocate new trace buffer and initialize */ 3015 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 3016 sz), GFP_KERNEL); 3017 if (!phba->nvmeio_trc) { 3018 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3019 "0573 Cannot create debugfs " 3020 "nvmeio_trc buffer\n"); 3021 return -ENOMEM; 3022 } 3023 atomic_set(&phba->nvmeio_trc_cnt, 0); 3024 phba->nvmeio_trc_on = 0; 3025 phba->nvmeio_trc_output_idx = 0; 3026 3027 return strlen(pbuf); 3028 } 3029 3030 static int 3031 lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file) 3032 { 3033 struct lpfc_vport *vport = inode->i_private; 3034 struct lpfc_debug *debug; 3035 int rc = -ENOMEM; 3036 3037 debug = kmalloc_obj(*debug); 3038 if (!debug) 3039 goto out; 3040 3041 /* Round to page boundary */ 3042 debug->buffer = kcalloc(1, LPFC_SCSISTAT_SIZE, GFP_KERNEL); 3043 if (!debug->buffer) { 3044 kfree(debug); 3045 goto out; 3046 } 3047 3048 debug->len = lpfc_debugfs_hdwqstat_data(vport, debug->buffer, 3049 LPFC_SCSISTAT_SIZE); 3050 3051 debug->i_private = inode->i_private; 3052 file->private_data = debug; 3053 3054 rc = 0; 3055 out: 3056 return rc; 3057 } 3058 3059 static ssize_t 3060 lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf, 3061 size_t nbytes, loff_t *ppos) 3062 { 3063 struct lpfc_debug *debug = file->private_data; 3064 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 3065 struct lpfc_hba *phba = vport->phba; 3066 struct lpfc_hdwq_stat *c_stat; 3067 char mybuf[64]; 3068 char *pbuf; 3069 int i; 3070 3071 if (nbytes > sizeof(mybuf) - 1) 3072 nbytes = sizeof(mybuf) - 1; 3073 3074 memset(mybuf, 0, sizeof(mybuf)); 3075 3076 if (copy_from_user(mybuf, buf, nbytes)) 3077 return -EFAULT; 3078 pbuf = &mybuf[0]; 3079 3080 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 3081 if (phba->nvmet_support) 3082 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3083 else 3084 phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO | 3085 LPFC_CHECK_SCSI_IO); 3086 return strlen(pbuf); 3087 } else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) { 3088 if (phba->nvmet_support) 3089 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3090 else 3091 phba->hdwqstat_on |= LPFC_CHECK_NVME_IO; 3092 return strlen(pbuf); 3093 } else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) { 3094 if (!phba->nvmet_support) 3095 phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO; 3096 return strlen(pbuf); 3097 } else if ((strncmp(pbuf, "nvme_off", sizeof("nvme_off") - 1) == 0)) { 3098 phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO | 3099 LPFC_CHECK_NVMET_IO); 3100 return strlen(pbuf); 3101 } else if ((strncmp(pbuf, "scsi_off", sizeof("scsi_off") - 1) == 0)) { 3102 phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO; 3103 return strlen(pbuf); 3104 } else if ((strncmp(pbuf, "off", 3105 sizeof("off") - 1) == 0)) { 3106 phba->hdwqstat_on = LPFC_CHECK_OFF; 3107 return strlen(pbuf); 3108 } else if ((strncmp(pbuf, "zero", 3109 sizeof("zero") - 1) == 0)) { 3110 for_each_present_cpu(i) { 3111 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i); 3112 c_stat->xmt_io = 0; 3113 c_stat->cmpl_io = 0; 3114 c_stat->rcv_io = 0; 3115 } 3116 return strlen(pbuf); 3117 } 3118 return -EINVAL; 3119 } 3120 3121 /* 3122 * --------------------------------- 3123 * iDiag debugfs file access methods 3124 * --------------------------------- 3125 * 3126 * All access methods are through the proper SLI4 PCI function's debugfs 3127 * iDiag directory: 3128 * 3129 * /sys/kernel/debug/lpfc/fn<#>/iDiag 3130 */ 3131 3132 /** 3133 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 3134 * @buf: The pointer to the user space buffer. 3135 * @nbytes: The number of bytes in the user space buffer. 3136 * @idiag_cmd: pointer to the idiag command struct. 3137 * 3138 * This routine reads data from debugfs user space buffer and parses the 3139 * buffer for getting the idiag command and arguments. The while space in 3140 * between the set of data is used as the parsing separator. 3141 * 3142 * This routine returns 0 when successful, it returns proper error code 3143 * back to the user space in error conditions. 3144 */ 3145 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 3146 struct lpfc_idiag_cmd *idiag_cmd) 3147 { 3148 char mybuf[64]; 3149 char *pbuf, *step_str; 3150 int i; 3151 size_t bsize; 3152 3153 memset(mybuf, 0, sizeof(mybuf)); 3154 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 3155 bsize = min(nbytes, (sizeof(mybuf)-1)); 3156 3157 if (copy_from_user(mybuf, buf, bsize)) 3158 return -EFAULT; 3159 pbuf = &mybuf[0]; 3160 step_str = strsep(&pbuf, "\t "); 3161 3162 /* The opcode must present */ 3163 if (!step_str) 3164 return -EINVAL; 3165 3166 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 3167 if (idiag_cmd->opcode == 0) 3168 return -EINVAL; 3169 3170 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 3171 step_str = strsep(&pbuf, "\t "); 3172 if (!step_str) 3173 return i; 3174 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 3175 } 3176 return i; 3177 } 3178 3179 /** 3180 * lpfc_idiag_open - idiag open debugfs 3181 * @inode: The inode pointer that contains a pointer to phba. 3182 * @file: The file pointer to attach the file operation. 3183 * 3184 * Description: 3185 * This routine is the entry point for the debugfs open file operation. It 3186 * gets the reference to phba from the i_private field in @inode, it then 3187 * allocates buffer for the file operation, performs the necessary PCI config 3188 * space read into the allocated buffer according to the idiag user command 3189 * setup, and then returns a pointer to buffer in the private_data field in 3190 * @file. 3191 * 3192 * Returns: 3193 * This function returns zero if successful. On error it will return an 3194 * negative error value. 3195 **/ 3196 static int 3197 lpfc_idiag_open(struct inode *inode, struct file *file) 3198 { 3199 struct lpfc_debug *debug; 3200 3201 debug = kmalloc_obj(*debug); 3202 if (!debug) 3203 return -ENOMEM; 3204 3205 debug->i_private = inode->i_private; 3206 debug->buffer = NULL; 3207 file->private_data = debug; 3208 3209 return 0; 3210 } 3211 3212 /** 3213 * lpfc_idiag_release - Release idiag access file operation 3214 * @inode: The inode pointer that contains a vport pointer. (unused) 3215 * @file: The file pointer that contains the buffer to release. 3216 * 3217 * Description: 3218 * This routine is the generic release routine for the idiag access file 3219 * operation, it frees the buffer that was allocated when the debugfs file 3220 * was opened. 3221 * 3222 * Returns: 3223 * This function returns zero. 3224 **/ 3225 static int 3226 lpfc_idiag_release(struct inode *inode, struct file *file) 3227 { 3228 struct lpfc_debug *debug = file->private_data; 3229 3230 /* Free the buffers to the file operation */ 3231 kfree(debug->buffer); 3232 kfree(debug); 3233 3234 return 0; 3235 } 3236 3237 /** 3238 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 3239 * @inode: The inode pointer that contains a vport pointer. (unused) 3240 * @file: The file pointer that contains the buffer to release. 3241 * 3242 * Description: 3243 * This routine frees the buffer that was allocated when the debugfs file 3244 * was opened. It also reset the fields in the idiag command struct in the 3245 * case of command for write operation. 3246 * 3247 * Returns: 3248 * This function returns zero. 3249 **/ 3250 static int 3251 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 3252 { 3253 struct lpfc_debug *debug = file->private_data; 3254 3255 if (debug->op == LPFC_IDIAG_OP_WR) { 3256 switch (idiag.cmd.opcode) { 3257 case LPFC_IDIAG_CMD_PCICFG_WR: 3258 case LPFC_IDIAG_CMD_PCICFG_ST: 3259 case LPFC_IDIAG_CMD_PCICFG_CL: 3260 case LPFC_IDIAG_CMD_QUEACC_WR: 3261 case LPFC_IDIAG_CMD_QUEACC_ST: 3262 case LPFC_IDIAG_CMD_QUEACC_CL: 3263 memset(&idiag, 0, sizeof(idiag)); 3264 break; 3265 default: 3266 break; 3267 } 3268 } 3269 3270 /* Free the buffers to the file operation */ 3271 kfree(debug->buffer); 3272 kfree(debug); 3273 3274 return 0; 3275 } 3276 3277 /** 3278 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 3279 * @file: The file pointer to read from. 3280 * @buf: The buffer to copy the data to. 3281 * @nbytes: The number of bytes to read. 3282 * @ppos: The position in the file to start reading from. 3283 * 3284 * Description: 3285 * This routine reads data from the @phba pci config space according to the 3286 * idiag command, and copies to user @buf. Depending on the PCI config space 3287 * read command setup, it does either a single register read of a byte 3288 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 3289 * registers from the 4K extended PCI config space. 3290 * 3291 * Returns: 3292 * This function returns the amount of data that was read (this could be less 3293 * than @nbytes if the end of the file was reached) or a negative error value. 3294 **/ 3295 static ssize_t 3296 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 3297 loff_t *ppos) 3298 { 3299 struct lpfc_debug *debug = file->private_data; 3300 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3301 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 3302 int where, count; 3303 char *pbuffer; 3304 struct pci_dev *pdev; 3305 uint32_t u32val; 3306 uint16_t u16val; 3307 uint8_t u8val; 3308 3309 pdev = phba->pcidev; 3310 if (!pdev) 3311 return 0; 3312 3313 /* This is a user read operation */ 3314 debug->op = LPFC_IDIAG_OP_RD; 3315 3316 if (!debug->buffer) 3317 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 3318 if (!debug->buffer) 3319 return 0; 3320 pbuffer = debug->buffer; 3321 3322 if (*ppos) 3323 return 0; 3324 3325 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3326 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3327 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3328 } else 3329 return 0; 3330 3331 /* Read single PCI config space register */ 3332 switch (count) { 3333 case SIZE_U8: /* byte (8 bits) */ 3334 pci_read_config_byte(pdev, where, &u8val); 3335 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3336 "%03x: %02x\n", where, u8val); 3337 break; 3338 case SIZE_U16: /* word (16 bits) */ 3339 pci_read_config_word(pdev, where, &u16val); 3340 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3341 "%03x: %04x\n", where, u16val); 3342 break; 3343 case SIZE_U32: /* double word (32 bits) */ 3344 pci_read_config_dword(pdev, where, &u32val); 3345 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3346 "%03x: %08x\n", where, u32val); 3347 break; 3348 case LPFC_PCI_CFG_BROWSE: /* browse all */ 3349 goto pcicfg_browse; 3350 default: 3351 /* illegal count */ 3352 len = 0; 3353 break; 3354 } 3355 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3356 3357 pcicfg_browse: 3358 3359 /* Browse all PCI config space registers */ 3360 offset_label = idiag.offset.last_rd; 3361 offset = offset_label; 3362 3363 /* Read PCI config space */ 3364 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3365 "%03x: ", offset_label); 3366 while (index > 0) { 3367 pci_read_config_dword(pdev, offset, &u32val); 3368 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3369 "%08x ", u32val); 3370 offset += sizeof(uint32_t); 3371 if (offset >= LPFC_PCI_CFG_SIZE) { 3372 len += scnprintf(pbuffer+len, 3373 LPFC_PCI_CFG_SIZE-len, "\n"); 3374 break; 3375 } 3376 index -= sizeof(uint32_t); 3377 if (!index) 3378 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3379 "\n"); 3380 else if (!(index % (8 * sizeof(uint32_t)))) { 3381 offset_label += (8 * sizeof(uint32_t)); 3382 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3383 "\n%03x: ", offset_label); 3384 } 3385 } 3386 3387 /* Set up the offset for next portion of pci cfg read */ 3388 if (index == 0) { 3389 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 3390 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 3391 idiag.offset.last_rd = 0; 3392 } else 3393 idiag.offset.last_rd = 0; 3394 3395 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3396 } 3397 3398 /** 3399 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 3400 * @file: The file pointer to read from. 3401 * @buf: The buffer to copy the user data from. 3402 * @nbytes: The number of bytes to get. 3403 * @ppos: The position in the file to start reading from. 3404 * 3405 * This routine get the debugfs idiag command struct from user space and 3406 * then perform the syntax check for PCI config space read or write command 3407 * accordingly. In the case of PCI config space read command, it sets up 3408 * the command in the idiag command struct for the debugfs read operation. 3409 * In the case of PCI config space write operation, it executes the write 3410 * operation into the PCI config space accordingly. 3411 * 3412 * It returns the @nbytges passing in from debugfs user space when successful. 3413 * In case of error conditions, it returns proper error code back to the user 3414 * space. 3415 */ 3416 static ssize_t 3417 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 3418 size_t nbytes, loff_t *ppos) 3419 { 3420 struct lpfc_debug *debug = file->private_data; 3421 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3422 uint32_t where, value, count; 3423 uint32_t u32val; 3424 uint16_t u16val; 3425 uint8_t u8val; 3426 struct pci_dev *pdev; 3427 int rc; 3428 3429 pdev = phba->pcidev; 3430 if (!pdev) 3431 return -EFAULT; 3432 3433 /* This is a user write operation */ 3434 debug->op = LPFC_IDIAG_OP_WR; 3435 3436 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3437 if (rc < 0) 3438 return rc; 3439 3440 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3441 /* Sanity check on PCI config read command line arguments */ 3442 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 3443 goto error_out; 3444 /* Read command from PCI config space, set up command fields */ 3445 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3446 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3447 if (count == LPFC_PCI_CFG_BROWSE) { 3448 if (where % sizeof(uint32_t)) 3449 goto error_out; 3450 /* Starting offset to browse */ 3451 idiag.offset.last_rd = where; 3452 } else if ((count != sizeof(uint8_t)) && 3453 (count != sizeof(uint16_t)) && 3454 (count != sizeof(uint32_t))) 3455 goto error_out; 3456 if (count == sizeof(uint8_t)) { 3457 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3458 goto error_out; 3459 if (where % sizeof(uint8_t)) 3460 goto error_out; 3461 } 3462 if (count == sizeof(uint16_t)) { 3463 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3464 goto error_out; 3465 if (where % sizeof(uint16_t)) 3466 goto error_out; 3467 } 3468 if (count == sizeof(uint32_t)) { 3469 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3470 goto error_out; 3471 if (where % sizeof(uint32_t)) 3472 goto error_out; 3473 } 3474 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 3475 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 3476 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3477 /* Sanity check on PCI config write command line arguments */ 3478 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 3479 goto error_out; 3480 /* Write command to PCI config space, read-modify-write */ 3481 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3482 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3483 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 3484 /* Sanity checks */ 3485 if ((count != sizeof(uint8_t)) && 3486 (count != sizeof(uint16_t)) && 3487 (count != sizeof(uint32_t))) 3488 goto error_out; 3489 if (count == sizeof(uint8_t)) { 3490 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3491 goto error_out; 3492 if (where % sizeof(uint8_t)) 3493 goto error_out; 3494 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3495 pci_write_config_byte(pdev, where, 3496 (uint8_t)value); 3497 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3498 rc = pci_read_config_byte(pdev, where, &u8val); 3499 if (!rc) { 3500 u8val |= (uint8_t)value; 3501 pci_write_config_byte(pdev, where, 3502 u8val); 3503 } 3504 } 3505 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3506 rc = pci_read_config_byte(pdev, where, &u8val); 3507 if (!rc) { 3508 u8val &= (uint8_t)(~value); 3509 pci_write_config_byte(pdev, where, 3510 u8val); 3511 } 3512 } 3513 } 3514 if (count == sizeof(uint16_t)) { 3515 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3516 goto error_out; 3517 if (where % sizeof(uint16_t)) 3518 goto error_out; 3519 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3520 pci_write_config_word(pdev, where, 3521 (uint16_t)value); 3522 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3523 rc = pci_read_config_word(pdev, where, &u16val); 3524 if (!rc) { 3525 u16val |= (uint16_t)value; 3526 pci_write_config_word(pdev, where, 3527 u16val); 3528 } 3529 } 3530 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3531 rc = pci_read_config_word(pdev, where, &u16val); 3532 if (!rc) { 3533 u16val &= (uint16_t)(~value); 3534 pci_write_config_word(pdev, where, 3535 u16val); 3536 } 3537 } 3538 } 3539 if (count == sizeof(uint32_t)) { 3540 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3541 goto error_out; 3542 if (where % sizeof(uint32_t)) 3543 goto error_out; 3544 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3545 pci_write_config_dword(pdev, where, value); 3546 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3547 rc = pci_read_config_dword(pdev, where, 3548 &u32val); 3549 if (!rc) { 3550 u32val |= value; 3551 pci_write_config_dword(pdev, where, 3552 u32val); 3553 } 3554 } 3555 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3556 rc = pci_read_config_dword(pdev, where, 3557 &u32val); 3558 if (!rc) { 3559 u32val &= ~value; 3560 pci_write_config_dword(pdev, where, 3561 u32val); 3562 } 3563 } 3564 } 3565 } else 3566 /* All other opecodes are illegal for now */ 3567 goto error_out; 3568 3569 return nbytes; 3570 error_out: 3571 memset(&idiag, 0, sizeof(idiag)); 3572 return -EINVAL; 3573 } 3574 3575 /** 3576 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 3577 * @file: The file pointer to read from. 3578 * @buf: The buffer to copy the data to. 3579 * @nbytes: The number of bytes to read. 3580 * @ppos: The position in the file to start reading from. 3581 * 3582 * Description: 3583 * This routine reads data from the @phba pci bar memory mapped space 3584 * according to the idiag command, and copies to user @buf. 3585 * 3586 * Returns: 3587 * This function returns the amount of data that was read (this could be less 3588 * than @nbytes if the end of the file was reached) or a negative error value. 3589 **/ 3590 static ssize_t 3591 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 3592 loff_t *ppos) 3593 { 3594 struct lpfc_debug *debug = file->private_data; 3595 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3596 int offset_label, offset, offset_run, len = 0, index; 3597 int bar_num, acc_range, bar_size; 3598 char *pbuffer; 3599 void __iomem *mem_mapped_bar; 3600 uint32_t if_type; 3601 struct pci_dev *pdev; 3602 uint32_t u32val; 3603 3604 pdev = phba->pcidev; 3605 if (!pdev) 3606 return 0; 3607 3608 /* This is a user read operation */ 3609 debug->op = LPFC_IDIAG_OP_RD; 3610 3611 if (!debug->buffer) 3612 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 3613 if (!debug->buffer) 3614 return 0; 3615 pbuffer = debug->buffer; 3616 3617 if (*ppos) 3618 return 0; 3619 3620 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3621 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3622 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3623 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3624 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3625 } else 3626 return 0; 3627 3628 if (acc_range == 0) 3629 return 0; 3630 3631 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3632 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3633 if (bar_num == IDIAG_BARACC_BAR_0) 3634 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3635 else if (bar_num == IDIAG_BARACC_BAR_1) 3636 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3637 else if (bar_num == IDIAG_BARACC_BAR_2) 3638 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3639 else 3640 return 0; 3641 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3642 if (bar_num == IDIAG_BARACC_BAR_0) 3643 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3644 else 3645 return 0; 3646 } else 3647 return 0; 3648 3649 /* Read single PCI bar space register */ 3650 if (acc_range == SINGLE_WORD) { 3651 offset_run = offset; 3652 u32val = readl(mem_mapped_bar + offset_run); 3653 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3654 "%05x: %08x\n", offset_run, u32val); 3655 } else 3656 goto baracc_browse; 3657 3658 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3659 3660 baracc_browse: 3661 3662 /* Browse all PCI bar space registers */ 3663 offset_label = idiag.offset.last_rd; 3664 offset_run = offset_label; 3665 3666 /* Read PCI bar memory mapped space */ 3667 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3668 "%05x: ", offset_label); 3669 index = LPFC_PCI_BAR_RD_SIZE; 3670 while (index > 0) { 3671 u32val = readl(mem_mapped_bar + offset_run); 3672 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3673 "%08x ", u32val); 3674 offset_run += sizeof(uint32_t); 3675 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3676 if (offset_run >= bar_size) { 3677 len += scnprintf(pbuffer+len, 3678 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3679 break; 3680 } 3681 } else { 3682 if (offset_run >= offset + 3683 (acc_range * sizeof(uint32_t))) { 3684 len += scnprintf(pbuffer+len, 3685 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3686 break; 3687 } 3688 } 3689 index -= sizeof(uint32_t); 3690 if (!index) 3691 len += scnprintf(pbuffer+len, 3692 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3693 else if (!(index % (8 * sizeof(uint32_t)))) { 3694 offset_label += (8 * sizeof(uint32_t)); 3695 len += scnprintf(pbuffer+len, 3696 LPFC_PCI_BAR_RD_BUF_SIZE-len, 3697 "\n%05x: ", offset_label); 3698 } 3699 } 3700 3701 /* Set up the offset for next portion of pci bar read */ 3702 if (index == 0) { 3703 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 3704 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3705 if (idiag.offset.last_rd >= bar_size) 3706 idiag.offset.last_rd = 0; 3707 } else { 3708 if (offset_run >= offset + 3709 (acc_range * sizeof(uint32_t))) 3710 idiag.offset.last_rd = offset; 3711 } 3712 } else { 3713 if (acc_range == LPFC_PCI_BAR_BROWSE) 3714 idiag.offset.last_rd = 0; 3715 else 3716 idiag.offset.last_rd = offset; 3717 } 3718 3719 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3720 } 3721 3722 /** 3723 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 3724 * @file: The file pointer to read from. 3725 * @buf: The buffer to copy the user data from. 3726 * @nbytes: The number of bytes to get. 3727 * @ppos: The position in the file to start reading from. 3728 * 3729 * This routine get the debugfs idiag command struct from user space and 3730 * then perform the syntax check for PCI bar memory mapped space read or 3731 * write command accordingly. In the case of PCI bar memory mapped space 3732 * read command, it sets up the command in the idiag command struct for 3733 * the debugfs read operation. In the case of PCI bar memorpy mapped space 3734 * write operation, it executes the write operation into the PCI bar memory 3735 * mapped space accordingly. 3736 * 3737 * It returns the @nbytges passing in from debugfs user space when successful. 3738 * In case of error conditions, it returns proper error code back to the user 3739 * space. 3740 */ 3741 static ssize_t 3742 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 3743 size_t nbytes, loff_t *ppos) 3744 { 3745 struct lpfc_debug *debug = file->private_data; 3746 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3747 uint32_t bar_num, bar_size, offset, value, acc_range; 3748 struct pci_dev *pdev; 3749 void __iomem *mem_mapped_bar; 3750 uint32_t if_type; 3751 uint32_t u32val; 3752 int rc; 3753 3754 pdev = phba->pcidev; 3755 if (!pdev) 3756 return -EFAULT; 3757 3758 /* This is a user write operation */ 3759 debug->op = LPFC_IDIAG_OP_WR; 3760 3761 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3762 if (rc < 0) 3763 return rc; 3764 3765 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3766 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3767 3768 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3769 if ((bar_num != IDIAG_BARACC_BAR_0) && 3770 (bar_num != IDIAG_BARACC_BAR_1) && 3771 (bar_num != IDIAG_BARACC_BAR_2)) 3772 goto error_out; 3773 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3774 if (bar_num != IDIAG_BARACC_BAR_0) 3775 goto error_out; 3776 } else 3777 goto error_out; 3778 3779 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3780 if (bar_num == IDIAG_BARACC_BAR_0) { 3781 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3782 LPFC_PCI_IF0_BAR0_SIZE; 3783 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3784 } else if (bar_num == IDIAG_BARACC_BAR_1) { 3785 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3786 LPFC_PCI_IF0_BAR1_SIZE; 3787 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3788 } else if (bar_num == IDIAG_BARACC_BAR_2) { 3789 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3790 LPFC_PCI_IF0_BAR2_SIZE; 3791 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3792 } else 3793 goto error_out; 3794 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3795 if (bar_num == IDIAG_BARACC_BAR_0) { 3796 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3797 LPFC_PCI_IF2_BAR0_SIZE; 3798 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3799 } else 3800 goto error_out; 3801 } else 3802 goto error_out; 3803 3804 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3805 if (offset % sizeof(uint32_t)) 3806 goto error_out; 3807 3808 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3809 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3810 /* Sanity check on PCI config read command line arguments */ 3811 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3812 goto error_out; 3813 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3814 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3815 if (offset > bar_size - sizeof(uint32_t)) 3816 goto error_out; 3817 /* Starting offset to browse */ 3818 idiag.offset.last_rd = offset; 3819 } else if (acc_range > SINGLE_WORD) { 3820 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3821 goto error_out; 3822 /* Starting offset to browse */ 3823 idiag.offset.last_rd = offset; 3824 } else if (acc_range != SINGLE_WORD) 3825 goto error_out; 3826 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3827 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3828 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3829 /* Sanity check on PCI bar write command line arguments */ 3830 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3831 goto error_out; 3832 /* Write command to PCI bar space, read-modify-write */ 3833 acc_range = SINGLE_WORD; 3834 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3835 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3836 writel(value, mem_mapped_bar + offset); 3837 readl(mem_mapped_bar + offset); 3838 } 3839 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3840 u32val = readl(mem_mapped_bar + offset); 3841 u32val |= value; 3842 writel(u32val, mem_mapped_bar + offset); 3843 readl(mem_mapped_bar + offset); 3844 } 3845 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3846 u32val = readl(mem_mapped_bar + offset); 3847 u32val &= ~value; 3848 writel(u32val, mem_mapped_bar + offset); 3849 readl(mem_mapped_bar + offset); 3850 } 3851 } else 3852 /* All other opecodes are illegal for now */ 3853 goto error_out; 3854 3855 return nbytes; 3856 error_out: 3857 memset(&idiag, 0, sizeof(idiag)); 3858 return -EINVAL; 3859 } 3860 3861 static int 3862 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3863 char *pbuffer, int len) 3864 { 3865 if (!qp) 3866 return len; 3867 3868 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3869 "\t\t%s WQ info: ", wqtype); 3870 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3871 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3872 qp->assoc_qid, qp->q_cnt_1, 3873 (unsigned long long)qp->q_cnt_4); 3874 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3875 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3876 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]", 3877 qp->queue_id, qp->entry_count, 3878 qp->entry_size, qp->host_index, 3879 qp->hba_index, qp->notify_interval); 3880 len += scnprintf(pbuffer + len, 3881 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3882 return len; 3883 } 3884 3885 static int 3886 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3887 int *len, int max_cnt, int cq_id) 3888 { 3889 struct lpfc_queue *qp; 3890 int qidx; 3891 3892 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 3893 qp = phba->sli4_hba.hdwq[qidx].io_wq; 3894 if (qp->assoc_qid != cq_id) 3895 continue; 3896 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3897 if (*len >= max_cnt) 3898 return 1; 3899 } 3900 return 0; 3901 } 3902 3903 static int 3904 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3905 char *pbuffer, int len) 3906 { 3907 if (!qp) 3908 return len; 3909 3910 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3911 "\t%s CQ info: ", cqtype); 3912 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3913 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3914 "xabt:x%x wq:x%llx]\n", 3915 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3916 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3917 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3918 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3919 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d]", 3920 qp->queue_id, qp->entry_count, 3921 qp->entry_size, qp->host_index, 3922 qp->notify_interval, qp->max_proc_limit); 3923 3924 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3925 "\n"); 3926 3927 return len; 3928 } 3929 3930 static int 3931 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3932 char *rqtype, char *pbuffer, int len) 3933 { 3934 if (!qp || !datqp) 3935 return len; 3936 3937 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3938 "\t\t%s RQ info: ", rqtype); 3939 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3940 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3941 "posted:x%x rcv:x%llx]\n", 3942 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3943 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3944 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3945 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3946 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3947 qp->queue_id, qp->entry_count, qp->entry_size, 3948 qp->host_index, qp->hba_index, qp->notify_interval); 3949 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3950 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3951 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3952 datqp->queue_id, datqp->entry_count, 3953 datqp->entry_size, datqp->host_index, 3954 datqp->hba_index, datqp->notify_interval); 3955 return len; 3956 } 3957 3958 static int 3959 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3960 int *len, int max_cnt, int eqidx, int eq_id) 3961 { 3962 struct lpfc_queue *qp; 3963 int rc; 3964 3965 qp = phba->sli4_hba.hdwq[eqidx].io_cq; 3966 3967 *len = __lpfc_idiag_print_cq(qp, "IO", pbuffer, *len); 3968 3969 /* Reset max counter */ 3970 qp->CQ_max_cqe = 0; 3971 3972 if (*len >= max_cnt) 3973 return 1; 3974 3975 rc = lpfc_idiag_wqs_for_cq(phba, "IO", pbuffer, len, 3976 max_cnt, qp->queue_id); 3977 if (rc) 3978 return 1; 3979 3980 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) { 3981 /* NVMET CQset */ 3982 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 3983 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 3984 3985 /* Reset max counter */ 3986 qp->CQ_max_cqe = 0; 3987 3988 if (*len >= max_cnt) 3989 return 1; 3990 3991 /* RQ header */ 3992 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 3993 *len = __lpfc_idiag_print_rqpair(qp, 3994 phba->sli4_hba.nvmet_mrq_data[eqidx], 3995 "NVMET MRQ", pbuffer, *len); 3996 3997 if (*len >= max_cnt) 3998 return 1; 3999 } 4000 4001 return 0; 4002 } 4003 4004 static int 4005 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 4006 char *pbuffer, int len) 4007 { 4008 if (!qp) 4009 return len; 4010 4011 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4012 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 4013 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n", 4014 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 4015 (unsigned long long)qp->q_cnt_4, qp->q_mode); 4016 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4017 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 4018 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]", 4019 qp->queue_id, qp->entry_count, qp->entry_size, 4020 qp->host_index, qp->notify_interval, 4021 qp->max_proc_limit, qp->chann); 4022 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4023 "\n"); 4024 4025 return len; 4026 } 4027 4028 /** 4029 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 4030 * @file: The file pointer to read from. 4031 * @buf: The buffer to copy the data to. 4032 * @nbytes: The number of bytes to read. 4033 * @ppos: The position in the file to start reading from. 4034 * 4035 * Description: 4036 * This routine reads data from the @phba SLI4 PCI function queue information, 4037 * and copies to user @buf. 4038 * This routine only returns 1 EQs worth of information. It remembers the last 4039 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 4040 * retrieve all EQs allocated for the phba. 4041 * 4042 * Returns: 4043 * This function returns the amount of data that was read (this could be less 4044 * than @nbytes if the end of the file was reached) or a negative error value. 4045 **/ 4046 static ssize_t 4047 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 4048 loff_t *ppos) 4049 { 4050 struct lpfc_debug *debug = file->private_data; 4051 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4052 char *pbuffer; 4053 int max_cnt, rc, x, len = 0; 4054 struct lpfc_queue *qp = NULL; 4055 4056 if (!debug->buffer) 4057 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 4058 if (!debug->buffer) 4059 return 0; 4060 pbuffer = debug->buffer; 4061 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 4062 4063 if (*ppos) 4064 return 0; 4065 4066 spin_lock_irq(&phba->hbalock); 4067 4068 /* Fast-path event queue */ 4069 if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) { 4070 4071 x = phba->lpfc_idiag_last_eq; 4072 phba->lpfc_idiag_last_eq++; 4073 if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue) 4074 phba->lpfc_idiag_last_eq = 0; 4075 4076 len += scnprintf(pbuffer + len, 4077 LPFC_QUE_INFO_GET_BUF_SIZE - len, 4078 "HDWQ %d out of %d HBA HDWQs\n", 4079 x, phba->cfg_hdw_queue); 4080 4081 /* Fast-path EQ */ 4082 qp = phba->sli4_hba.hdwq[x].hba_eq; 4083 if (!qp) 4084 goto out; 4085 4086 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 4087 4088 /* Reset max counter */ 4089 qp->EQ_max_eqe = 0; 4090 4091 if (len >= max_cnt) 4092 goto too_big; 4093 4094 /* will dump both fcp and nvme cqs/wqs for the eq */ 4095 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 4096 max_cnt, x, qp->queue_id); 4097 if (rc) 4098 goto too_big; 4099 4100 /* Only EQ 0 has slow path CQs configured */ 4101 if (x) 4102 goto out; 4103 4104 /* Slow-path mailbox CQ */ 4105 qp = phba->sli4_hba.mbx_cq; 4106 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 4107 if (len >= max_cnt) 4108 goto too_big; 4109 4110 /* Slow-path MBOX MQ */ 4111 qp = phba->sli4_hba.mbx_wq; 4112 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 4113 if (len >= max_cnt) 4114 goto too_big; 4115 4116 /* Slow-path ELS response CQ */ 4117 qp = phba->sli4_hba.els_cq; 4118 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 4119 /* Reset max counter */ 4120 if (qp) 4121 qp->CQ_max_cqe = 0; 4122 if (len >= max_cnt) 4123 goto too_big; 4124 4125 /* Slow-path ELS WQ */ 4126 qp = phba->sli4_hba.els_wq; 4127 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 4128 if (len >= max_cnt) 4129 goto too_big; 4130 4131 qp = phba->sli4_hba.hdr_rq; 4132 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 4133 "ELS RQpair", pbuffer, len); 4134 if (len >= max_cnt) 4135 goto too_big; 4136 4137 /* Slow-path NVME LS response CQ */ 4138 qp = phba->sli4_hba.nvmels_cq; 4139 len = __lpfc_idiag_print_cq(qp, "NVME LS", 4140 pbuffer, len); 4141 /* Reset max counter */ 4142 if (qp) 4143 qp->CQ_max_cqe = 0; 4144 if (len >= max_cnt) 4145 goto too_big; 4146 4147 /* Slow-path NVME LS WQ */ 4148 qp = phba->sli4_hba.nvmels_wq; 4149 len = __lpfc_idiag_print_wq(qp, "NVME LS", 4150 pbuffer, len); 4151 if (len >= max_cnt) 4152 goto too_big; 4153 4154 goto out; 4155 } 4156 4157 spin_unlock_irq(&phba->hbalock); 4158 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4159 4160 too_big: 4161 len += scnprintf(pbuffer + len, 4162 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 4163 out: 4164 spin_unlock_irq(&phba->hbalock); 4165 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4166 } 4167 4168 /** 4169 * lpfc_idiag_que_param_check - queue access command parameter sanity check 4170 * @q: The pointer to queue structure. 4171 * @index: The index into a queue entry. 4172 * @count: The number of queue entries to access. 4173 * 4174 * Description: 4175 * The routine performs sanity check on device queue access method commands. 4176 * 4177 * Returns: 4178 * This function returns -EINVAL when fails the sanity check, otherwise, it 4179 * returns 0. 4180 **/ 4181 static int 4182 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 4183 { 4184 /* Only support single entry read or browsing */ 4185 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 4186 return -EINVAL; 4187 if (index > q->entry_count - 1) 4188 return -EINVAL; 4189 return 0; 4190 } 4191 4192 /** 4193 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 4194 * @pbuffer: The pointer to buffer to copy the read data into. 4195 * @len: Length of the buffer. 4196 * @pque: The pointer to the queue to be read. 4197 * @index: The index into the queue entry. 4198 * 4199 * Description: 4200 * This routine reads out a single entry from the given queue's index location 4201 * and copies it into the buffer provided. 4202 * 4203 * Returns: 4204 * This function returns 0 when it fails, otherwise, it returns the length of 4205 * the data read into the buffer provided. 4206 **/ 4207 static int 4208 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 4209 uint32_t index) 4210 { 4211 int offset, esize; 4212 uint32_t *pentry; 4213 4214 if (!pbuffer || !pque) 4215 return 0; 4216 4217 esize = pque->entry_size; 4218 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4219 "QE-INDEX[%04d]:\n", index); 4220 4221 offset = 0; 4222 pentry = lpfc_sli4_qe(pque, index); 4223 while (esize > 0) { 4224 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4225 "%08x ", *pentry); 4226 pentry++; 4227 offset += sizeof(uint32_t); 4228 esize -= sizeof(uint32_t); 4229 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 4230 len += scnprintf(pbuffer+len, 4231 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4232 } 4233 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4234 4235 return len; 4236 } 4237 4238 /** 4239 * lpfc_idiag_queacc_read - idiag debugfs read port queue 4240 * @file: The file pointer to read from. 4241 * @buf: The buffer to copy the data to. 4242 * @nbytes: The number of bytes to read. 4243 * @ppos: The position in the file to start reading from. 4244 * 4245 * Description: 4246 * This routine reads data from the @phba device queue memory according to the 4247 * idiag command, and copies to user @buf. Depending on the queue dump read 4248 * command setup, it does either a single queue entry read or browing through 4249 * all entries of the queue. 4250 * 4251 * Returns: 4252 * This function returns the amount of data that was read (this could be less 4253 * than @nbytes if the end of the file was reached) or a negative error value. 4254 **/ 4255 static ssize_t 4256 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 4257 loff_t *ppos) 4258 { 4259 struct lpfc_debug *debug = file->private_data; 4260 uint32_t last_index, index, count; 4261 struct lpfc_queue *pque = NULL; 4262 char *pbuffer; 4263 int len = 0; 4264 4265 /* This is a user read operation */ 4266 debug->op = LPFC_IDIAG_OP_RD; 4267 4268 if (!debug->buffer) 4269 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 4270 if (!debug->buffer) 4271 return 0; 4272 pbuffer = debug->buffer; 4273 4274 if (*ppos) 4275 return 0; 4276 4277 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4278 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4279 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4280 pque = (struct lpfc_queue *)idiag.ptr_private; 4281 } else 4282 return 0; 4283 4284 /* Browse the queue starting from index */ 4285 if (count == LPFC_QUE_ACC_BROWSE) 4286 goto que_browse; 4287 4288 /* Read a single entry from the queue */ 4289 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4290 4291 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4292 4293 que_browse: 4294 4295 /* Browse all entries from the queue */ 4296 last_index = idiag.offset.last_rd; 4297 index = last_index; 4298 4299 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 4300 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4301 index++; 4302 if (index > pque->entry_count - 1) 4303 break; 4304 } 4305 4306 /* Set up the offset for next portion of pci cfg read */ 4307 if (index > pque->entry_count - 1) 4308 index = 0; 4309 idiag.offset.last_rd = index; 4310 4311 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4312 } 4313 4314 /** 4315 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 4316 * @file: The file pointer to read from. 4317 * @buf: The buffer to copy the user data from. 4318 * @nbytes: The number of bytes to get. 4319 * @ppos: The position in the file to start reading from. 4320 * 4321 * This routine get the debugfs idiag command struct from user space and then 4322 * perform the syntax check for port queue read (dump) or write (set) command 4323 * accordingly. In the case of port queue read command, it sets up the command 4324 * in the idiag command struct for the following debugfs read operation. In 4325 * the case of port queue write operation, it executes the write operation 4326 * into the port queue entry accordingly. 4327 * 4328 * It returns the @nbytges passing in from debugfs user space when successful. 4329 * In case of error conditions, it returns proper error code back to the user 4330 * space. 4331 **/ 4332 static ssize_t 4333 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 4334 size_t nbytes, loff_t *ppos) 4335 { 4336 struct lpfc_debug *debug = file->private_data; 4337 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4338 uint32_t qidx, quetp, queid, index, count, offset, value; 4339 uint32_t *pentry; 4340 struct lpfc_queue *pque, *qp; 4341 int rc; 4342 4343 /* This is a user write operation */ 4344 debug->op = LPFC_IDIAG_OP_WR; 4345 4346 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4347 if (rc < 0) 4348 return rc; 4349 4350 /* Get and sanity check on command feilds */ 4351 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 4352 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 4353 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4354 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4355 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 4356 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 4357 4358 /* Sanity check on command line arguments */ 4359 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4360 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4361 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4362 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 4363 goto error_out; 4364 if (count != 1) 4365 goto error_out; 4366 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4367 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 4368 goto error_out; 4369 } else 4370 goto error_out; 4371 4372 switch (quetp) { 4373 case LPFC_IDIAG_EQ: 4374 /* HBA event queue */ 4375 if (phba->sli4_hba.hdwq) { 4376 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4377 qp = phba->sli4_hba.hdwq[qidx].hba_eq; 4378 if (qp && qp->queue_id == queid) { 4379 /* Sanity check */ 4380 rc = lpfc_idiag_que_param_check(qp, 4381 index, count); 4382 if (rc) 4383 goto error_out; 4384 idiag.ptr_private = qp; 4385 goto pass_check; 4386 } 4387 } 4388 } 4389 goto error_out; 4390 4391 case LPFC_IDIAG_CQ: 4392 /* MBX complete queue */ 4393 if (phba->sli4_hba.mbx_cq && 4394 phba->sli4_hba.mbx_cq->queue_id == queid) { 4395 /* Sanity check */ 4396 rc = lpfc_idiag_que_param_check( 4397 phba->sli4_hba.mbx_cq, index, count); 4398 if (rc) 4399 goto error_out; 4400 idiag.ptr_private = phba->sli4_hba.mbx_cq; 4401 goto pass_check; 4402 } 4403 /* ELS complete queue */ 4404 if (phba->sli4_hba.els_cq && 4405 phba->sli4_hba.els_cq->queue_id == queid) { 4406 /* Sanity check */ 4407 rc = lpfc_idiag_que_param_check( 4408 phba->sli4_hba.els_cq, index, count); 4409 if (rc) 4410 goto error_out; 4411 idiag.ptr_private = phba->sli4_hba.els_cq; 4412 goto pass_check; 4413 } 4414 /* NVME LS complete queue */ 4415 if (phba->sli4_hba.nvmels_cq && 4416 phba->sli4_hba.nvmels_cq->queue_id == queid) { 4417 /* Sanity check */ 4418 rc = lpfc_idiag_que_param_check( 4419 phba->sli4_hba.nvmels_cq, index, count); 4420 if (rc) 4421 goto error_out; 4422 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 4423 goto pass_check; 4424 } 4425 /* FCP complete queue */ 4426 if (phba->sli4_hba.hdwq) { 4427 for (qidx = 0; qidx < phba->cfg_hdw_queue; 4428 qidx++) { 4429 qp = phba->sli4_hba.hdwq[qidx].io_cq; 4430 if (qp && qp->queue_id == queid) { 4431 /* Sanity check */ 4432 rc = lpfc_idiag_que_param_check( 4433 qp, index, count); 4434 if (rc) 4435 goto error_out; 4436 idiag.ptr_private = qp; 4437 goto pass_check; 4438 } 4439 } 4440 } 4441 goto error_out; 4442 4443 case LPFC_IDIAG_MQ: 4444 /* MBX work queue */ 4445 if (phba->sli4_hba.mbx_wq && 4446 phba->sli4_hba.mbx_wq->queue_id == queid) { 4447 /* Sanity check */ 4448 rc = lpfc_idiag_que_param_check( 4449 phba->sli4_hba.mbx_wq, index, count); 4450 if (rc) 4451 goto error_out; 4452 idiag.ptr_private = phba->sli4_hba.mbx_wq; 4453 goto pass_check; 4454 } 4455 goto error_out; 4456 4457 case LPFC_IDIAG_WQ: 4458 /* ELS work queue */ 4459 if (phba->sli4_hba.els_wq && 4460 phba->sli4_hba.els_wq->queue_id == queid) { 4461 /* Sanity check */ 4462 rc = lpfc_idiag_que_param_check( 4463 phba->sli4_hba.els_wq, index, count); 4464 if (rc) 4465 goto error_out; 4466 idiag.ptr_private = phba->sli4_hba.els_wq; 4467 goto pass_check; 4468 } 4469 /* NVME LS work queue */ 4470 if (phba->sli4_hba.nvmels_wq && 4471 phba->sli4_hba.nvmels_wq->queue_id == queid) { 4472 /* Sanity check */ 4473 rc = lpfc_idiag_que_param_check( 4474 phba->sli4_hba.nvmels_wq, index, count); 4475 if (rc) 4476 goto error_out; 4477 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 4478 goto pass_check; 4479 } 4480 4481 if (phba->sli4_hba.hdwq) { 4482 /* FCP/SCSI work queue */ 4483 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4484 qp = phba->sli4_hba.hdwq[qidx].io_wq; 4485 if (qp && qp->queue_id == queid) { 4486 /* Sanity check */ 4487 rc = lpfc_idiag_que_param_check( 4488 qp, index, count); 4489 if (rc) 4490 goto error_out; 4491 idiag.ptr_private = qp; 4492 goto pass_check; 4493 } 4494 } 4495 } 4496 goto error_out; 4497 4498 case LPFC_IDIAG_RQ: 4499 /* HDR queue */ 4500 if (phba->sli4_hba.hdr_rq && 4501 phba->sli4_hba.hdr_rq->queue_id == queid) { 4502 /* Sanity check */ 4503 rc = lpfc_idiag_que_param_check( 4504 phba->sli4_hba.hdr_rq, index, count); 4505 if (rc) 4506 goto error_out; 4507 idiag.ptr_private = phba->sli4_hba.hdr_rq; 4508 goto pass_check; 4509 } 4510 /* DAT queue */ 4511 if (phba->sli4_hba.dat_rq && 4512 phba->sli4_hba.dat_rq->queue_id == queid) { 4513 /* Sanity check */ 4514 rc = lpfc_idiag_que_param_check( 4515 phba->sli4_hba.dat_rq, index, count); 4516 if (rc) 4517 goto error_out; 4518 idiag.ptr_private = phba->sli4_hba.dat_rq; 4519 goto pass_check; 4520 } 4521 goto error_out; 4522 default: 4523 goto error_out; 4524 } 4525 4526 pass_check: 4527 4528 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4529 if (count == LPFC_QUE_ACC_BROWSE) 4530 idiag.offset.last_rd = index; 4531 } 4532 4533 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4534 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4535 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4536 /* Additional sanity checks on write operation */ 4537 pque = (struct lpfc_queue *)idiag.ptr_private; 4538 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 4539 goto error_out; 4540 pentry = lpfc_sli4_qe(pque, index); 4541 pentry += offset; 4542 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 4543 *pentry = value; 4544 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 4545 *pentry |= value; 4546 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 4547 *pentry &= ~value; 4548 } 4549 return nbytes; 4550 4551 error_out: 4552 /* Clean out command structure on command error out */ 4553 memset(&idiag, 0, sizeof(idiag)); 4554 return -EINVAL; 4555 } 4556 4557 /** 4558 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 4559 * @phba: The pointer to hba structure. 4560 * @pbuffer: The pointer to the buffer to copy the data to. 4561 * @len: The length of bytes to copied. 4562 * @drbregid: The id to doorbell registers. 4563 * 4564 * Description: 4565 * This routine reads a doorbell register and copies its content to the 4566 * user buffer pointed to by @pbuffer. 4567 * 4568 * Returns: 4569 * This function returns the amount of data that was copied into @pbuffer. 4570 **/ 4571 static int 4572 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4573 int len, uint32_t drbregid) 4574 { 4575 4576 if (!pbuffer) 4577 return 0; 4578 4579 switch (drbregid) { 4580 case LPFC_DRB_EQ: 4581 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len, 4582 "EQ-DRB-REG: 0x%08x\n", 4583 readl(phba->sli4_hba.EQDBregaddr)); 4584 break; 4585 case LPFC_DRB_CQ: 4586 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len, 4587 "CQ-DRB-REG: 0x%08x\n", 4588 readl(phba->sli4_hba.CQDBregaddr)); 4589 break; 4590 case LPFC_DRB_MQ: 4591 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4592 "MQ-DRB-REG: 0x%08x\n", 4593 readl(phba->sli4_hba.MQDBregaddr)); 4594 break; 4595 case LPFC_DRB_WQ: 4596 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4597 "WQ-DRB-REG: 0x%08x\n", 4598 readl(phba->sli4_hba.WQDBregaddr)); 4599 break; 4600 case LPFC_DRB_RQ: 4601 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4602 "RQ-DRB-REG: 0x%08x\n", 4603 readl(phba->sli4_hba.RQDBregaddr)); 4604 break; 4605 default: 4606 break; 4607 } 4608 4609 return len; 4610 } 4611 4612 /** 4613 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 4614 * @file: The file pointer to read from. 4615 * @buf: The buffer to copy the data to. 4616 * @nbytes: The number of bytes to read. 4617 * @ppos: The position in the file to start reading from. 4618 * 4619 * Description: 4620 * This routine reads data from the @phba device doorbell register according 4621 * to the idiag command, and copies to user @buf. Depending on the doorbell 4622 * register read command setup, it does either a single doorbell register 4623 * read or dump all doorbell registers. 4624 * 4625 * Returns: 4626 * This function returns the amount of data that was read (this could be less 4627 * than @nbytes if the end of the file was reached) or a negative error value. 4628 **/ 4629 static ssize_t 4630 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 4631 loff_t *ppos) 4632 { 4633 struct lpfc_debug *debug = file->private_data; 4634 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4635 uint32_t drb_reg_id, i; 4636 char *pbuffer; 4637 int len = 0; 4638 4639 /* This is a user read operation */ 4640 debug->op = LPFC_IDIAG_OP_RD; 4641 4642 if (!debug->buffer) 4643 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 4644 if (!debug->buffer) 4645 return 0; 4646 pbuffer = debug->buffer; 4647 4648 if (*ppos) 4649 return 0; 4650 4651 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 4652 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4653 else 4654 return 0; 4655 4656 if (drb_reg_id == LPFC_DRB_ACC_ALL) 4657 for (i = 1; i <= LPFC_DRB_MAX; i++) 4658 len = lpfc_idiag_drbacc_read_reg(phba, 4659 pbuffer, len, i); 4660 else 4661 len = lpfc_idiag_drbacc_read_reg(phba, 4662 pbuffer, len, drb_reg_id); 4663 4664 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4665 } 4666 4667 /** 4668 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 4669 * @file: The file pointer to read from. 4670 * @buf: The buffer to copy the user data from. 4671 * @nbytes: The number of bytes to get. 4672 * @ppos: The position in the file to start reading from. 4673 * 4674 * This routine get the debugfs idiag command struct from user space and then 4675 * perform the syntax check for port doorbell register read (dump) or write 4676 * (set) command accordingly. In the case of port queue read command, it sets 4677 * up the command in the idiag command struct for the following debugfs read 4678 * operation. In the case of port doorbell register write operation, it 4679 * executes the write operation into the port doorbell register accordingly. 4680 * 4681 * It returns the @nbytges passing in from debugfs user space when successful. 4682 * In case of error conditions, it returns proper error code back to the user 4683 * space. 4684 **/ 4685 static ssize_t 4686 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 4687 size_t nbytes, loff_t *ppos) 4688 { 4689 struct lpfc_debug *debug = file->private_data; 4690 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4691 uint32_t drb_reg_id, value, reg_val = 0; 4692 void __iomem *drb_reg; 4693 int rc; 4694 4695 /* This is a user write operation */ 4696 debug->op = LPFC_IDIAG_OP_WR; 4697 4698 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4699 if (rc < 0) 4700 return rc; 4701 4702 /* Sanity check on command line arguments */ 4703 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4704 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4705 4706 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4707 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4708 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4709 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4710 goto error_out; 4711 if (drb_reg_id > LPFC_DRB_MAX) 4712 goto error_out; 4713 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4714 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4715 goto error_out; 4716 if ((drb_reg_id > LPFC_DRB_MAX) && 4717 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4718 goto error_out; 4719 } else 4720 goto error_out; 4721 4722 /* Perform the write access operation */ 4723 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4724 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4725 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4726 switch (drb_reg_id) { 4727 case LPFC_DRB_EQ: 4728 drb_reg = phba->sli4_hba.EQDBregaddr; 4729 break; 4730 case LPFC_DRB_CQ: 4731 drb_reg = phba->sli4_hba.CQDBregaddr; 4732 break; 4733 case LPFC_DRB_MQ: 4734 drb_reg = phba->sli4_hba.MQDBregaddr; 4735 break; 4736 case LPFC_DRB_WQ: 4737 drb_reg = phba->sli4_hba.WQDBregaddr; 4738 break; 4739 case LPFC_DRB_RQ: 4740 drb_reg = phba->sli4_hba.RQDBregaddr; 4741 break; 4742 default: 4743 goto error_out; 4744 } 4745 4746 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4747 reg_val = value; 4748 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4749 reg_val = readl(drb_reg); 4750 reg_val |= value; 4751 } 4752 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4753 reg_val = readl(drb_reg); 4754 reg_val &= ~value; 4755 } 4756 writel(reg_val, drb_reg); 4757 readl(drb_reg); /* flush */ 4758 } 4759 return nbytes; 4760 4761 error_out: 4762 /* Clean out command structure on command error out */ 4763 memset(&idiag, 0, sizeof(idiag)); 4764 return -EINVAL; 4765 } 4766 4767 /** 4768 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4769 * @phba: The pointer to hba structure. 4770 * @pbuffer: The pointer to the buffer to copy the data to. 4771 * @len: The length of bytes to copied. 4772 * @ctlregid: The id to doorbell registers. 4773 * 4774 * Description: 4775 * This routine reads a control register and copies its content to the 4776 * user buffer pointed to by @pbuffer. 4777 * 4778 * Returns: 4779 * This function returns the amount of data that was copied into @pbuffer. 4780 **/ 4781 static int 4782 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4783 int len, uint32_t ctlregid) 4784 { 4785 4786 if (!pbuffer) 4787 return 0; 4788 4789 switch (ctlregid) { 4790 case LPFC_CTL_PORT_SEM: 4791 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4792 "Port SemReg: 0x%08x\n", 4793 readl(phba->sli4_hba.conf_regs_memmap_p + 4794 LPFC_CTL_PORT_SEM_OFFSET)); 4795 break; 4796 case LPFC_CTL_PORT_STA: 4797 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4798 "Port StaReg: 0x%08x\n", 4799 readl(phba->sli4_hba.conf_regs_memmap_p + 4800 LPFC_CTL_PORT_STA_OFFSET)); 4801 break; 4802 case LPFC_CTL_PORT_CTL: 4803 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4804 "Port CtlReg: 0x%08x\n", 4805 readl(phba->sli4_hba.conf_regs_memmap_p + 4806 LPFC_CTL_PORT_CTL_OFFSET)); 4807 break; 4808 case LPFC_CTL_PORT_ER1: 4809 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4810 "Port Er1Reg: 0x%08x\n", 4811 readl(phba->sli4_hba.conf_regs_memmap_p + 4812 LPFC_CTL_PORT_ER1_OFFSET)); 4813 break; 4814 case LPFC_CTL_PORT_ER2: 4815 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4816 "Port Er2Reg: 0x%08x\n", 4817 readl(phba->sli4_hba.conf_regs_memmap_p + 4818 LPFC_CTL_PORT_ER2_OFFSET)); 4819 break; 4820 case LPFC_CTL_PDEV_CTL: 4821 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4822 "PDev CtlReg: 0x%08x\n", 4823 readl(phba->sli4_hba.conf_regs_memmap_p + 4824 LPFC_CTL_PDEV_CTL_OFFSET)); 4825 break; 4826 default: 4827 break; 4828 } 4829 return len; 4830 } 4831 4832 /** 4833 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4834 * @file: The file pointer to read from. 4835 * @buf: The buffer to copy the data to. 4836 * @nbytes: The number of bytes to read. 4837 * @ppos: The position in the file to start reading from. 4838 * 4839 * Description: 4840 * This routine reads data from the @phba port and device registers according 4841 * to the idiag command, and copies to user @buf. 4842 * 4843 * Returns: 4844 * This function returns the amount of data that was read (this could be less 4845 * than @nbytes if the end of the file was reached) or a negative error value. 4846 **/ 4847 static ssize_t 4848 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4849 loff_t *ppos) 4850 { 4851 struct lpfc_debug *debug = file->private_data; 4852 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4853 uint32_t ctl_reg_id, i; 4854 char *pbuffer; 4855 int len = 0; 4856 4857 /* This is a user read operation */ 4858 debug->op = LPFC_IDIAG_OP_RD; 4859 4860 if (!debug->buffer) 4861 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4862 if (!debug->buffer) 4863 return 0; 4864 pbuffer = debug->buffer; 4865 4866 if (*ppos) 4867 return 0; 4868 4869 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4870 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4871 else 4872 return 0; 4873 4874 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4875 for (i = 1; i <= LPFC_CTL_MAX; i++) 4876 len = lpfc_idiag_ctlacc_read_reg(phba, 4877 pbuffer, len, i); 4878 else 4879 len = lpfc_idiag_ctlacc_read_reg(phba, 4880 pbuffer, len, ctl_reg_id); 4881 4882 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4883 } 4884 4885 /** 4886 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4887 * @file: The file pointer to read from. 4888 * @buf: The buffer to copy the user data from. 4889 * @nbytes: The number of bytes to get. 4890 * @ppos: The position in the file to start reading from. 4891 * 4892 * This routine get the debugfs idiag command struct from user space and then 4893 * perform the syntax check for port and device control register read (dump) 4894 * or write (set) command accordingly. 4895 * 4896 * It returns the @nbytges passing in from debugfs user space when successful. 4897 * In case of error conditions, it returns proper error code back to the user 4898 * space. 4899 **/ 4900 static ssize_t 4901 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4902 size_t nbytes, loff_t *ppos) 4903 { 4904 struct lpfc_debug *debug = file->private_data; 4905 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4906 uint32_t ctl_reg_id, value, reg_val = 0; 4907 void __iomem *ctl_reg; 4908 int rc; 4909 4910 /* This is a user write operation */ 4911 debug->op = LPFC_IDIAG_OP_WR; 4912 4913 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4914 if (rc < 0) 4915 return rc; 4916 4917 /* Sanity check on command line arguments */ 4918 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4919 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4920 4921 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4922 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4923 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4924 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4925 goto error_out; 4926 if (ctl_reg_id > LPFC_CTL_MAX) 4927 goto error_out; 4928 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4929 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4930 goto error_out; 4931 if ((ctl_reg_id > LPFC_CTL_MAX) && 4932 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4933 goto error_out; 4934 } else 4935 goto error_out; 4936 4937 /* Perform the write access operation */ 4938 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4939 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4940 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4941 switch (ctl_reg_id) { 4942 case LPFC_CTL_PORT_SEM: 4943 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4944 LPFC_CTL_PORT_SEM_OFFSET; 4945 break; 4946 case LPFC_CTL_PORT_STA: 4947 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4948 LPFC_CTL_PORT_STA_OFFSET; 4949 break; 4950 case LPFC_CTL_PORT_CTL: 4951 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4952 LPFC_CTL_PORT_CTL_OFFSET; 4953 break; 4954 case LPFC_CTL_PORT_ER1: 4955 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4956 LPFC_CTL_PORT_ER1_OFFSET; 4957 break; 4958 case LPFC_CTL_PORT_ER2: 4959 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4960 LPFC_CTL_PORT_ER2_OFFSET; 4961 break; 4962 case LPFC_CTL_PDEV_CTL: 4963 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4964 LPFC_CTL_PDEV_CTL_OFFSET; 4965 break; 4966 default: 4967 goto error_out; 4968 } 4969 4970 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4971 reg_val = value; 4972 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4973 reg_val = readl(ctl_reg); 4974 reg_val |= value; 4975 } 4976 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4977 reg_val = readl(ctl_reg); 4978 reg_val &= ~value; 4979 } 4980 writel(reg_val, ctl_reg); 4981 readl(ctl_reg); /* flush */ 4982 } 4983 return nbytes; 4984 4985 error_out: 4986 /* Clean out command structure on command error out */ 4987 memset(&idiag, 0, sizeof(idiag)); 4988 return -EINVAL; 4989 } 4990 4991 /** 4992 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 4993 * @phba: Pointer to HBA context object. 4994 * @pbuffer: Pointer to data buffer. 4995 * 4996 * Description: 4997 * This routine gets the driver mailbox access debugfs setup information. 4998 * 4999 * Returns: 5000 * This function returns the amount of data that was read (this could be less 5001 * than @nbytes if the end of the file was reached) or a negative error value. 5002 **/ 5003 static int 5004 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 5005 { 5006 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5007 int len = 0; 5008 5009 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5010 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5011 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5012 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5013 5014 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5015 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 5016 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5017 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 5018 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5019 "mbx_word_cnt: %04d\n", mbx_word_cnt); 5020 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5021 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 5022 5023 return len; 5024 } 5025 5026 /** 5027 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 5028 * @file: The file pointer to read from. 5029 * @buf: The buffer to copy the data to. 5030 * @nbytes: The number of bytes to read. 5031 * @ppos: The position in the file to start reading from. 5032 * 5033 * Description: 5034 * This routine reads data from the @phba driver mailbox access debugfs setup 5035 * information. 5036 * 5037 * Returns: 5038 * This function returns the amount of data that was read (this could be less 5039 * than @nbytes if the end of the file was reached) or a negative error value. 5040 **/ 5041 static ssize_t 5042 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 5043 loff_t *ppos) 5044 { 5045 struct lpfc_debug *debug = file->private_data; 5046 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5047 char *pbuffer; 5048 int len = 0; 5049 5050 /* This is a user read operation */ 5051 debug->op = LPFC_IDIAG_OP_RD; 5052 5053 if (!debug->buffer) 5054 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 5055 if (!debug->buffer) 5056 return 0; 5057 pbuffer = debug->buffer; 5058 5059 if (*ppos) 5060 return 0; 5061 5062 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 5063 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 5064 return 0; 5065 5066 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 5067 5068 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5069 } 5070 5071 /** 5072 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 5073 * @file: The file pointer to read from. 5074 * @buf: The buffer to copy the user data from. 5075 * @nbytes: The number of bytes to get. 5076 * @ppos: The position in the file to start reading from. 5077 * 5078 * This routine get the debugfs idiag command struct from user space and then 5079 * perform the syntax check for driver mailbox command (dump) and sets up the 5080 * necessary states in the idiag command struct accordingly. 5081 * 5082 * It returns the @nbytges passing in from debugfs user space when successful. 5083 * In case of error conditions, it returns proper error code back to the user 5084 * space. 5085 **/ 5086 static ssize_t 5087 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 5088 size_t nbytes, loff_t *ppos) 5089 { 5090 struct lpfc_debug *debug = file->private_data; 5091 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5092 int rc; 5093 5094 /* This is a user write operation */ 5095 debug->op = LPFC_IDIAG_OP_WR; 5096 5097 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5098 if (rc < 0) 5099 return rc; 5100 5101 /* Sanity check on command line arguments */ 5102 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5103 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5104 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5105 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5106 5107 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 5108 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 5109 goto error_out; 5110 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 5111 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5112 goto error_out; 5113 if (mbx_word_cnt > sizeof(MAILBOX_t)) 5114 goto error_out; 5115 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 5116 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 5117 goto error_out; 5118 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 5119 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5120 goto error_out; 5121 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 5122 goto error_out; 5123 if (mbx_mbox_cmd != 0x9b) 5124 goto error_out; 5125 } else 5126 goto error_out; 5127 5128 if (mbx_word_cnt == 0) 5129 goto error_out; 5130 if (rc != LPFC_MBX_DMP_ARG) 5131 goto error_out; 5132 if (mbx_mbox_cmd & ~0xff) 5133 goto error_out; 5134 5135 /* condition for stop mailbox dump */ 5136 if (mbx_dump_cnt == 0) 5137 goto reset_out; 5138 5139 return nbytes; 5140 5141 reset_out: 5142 /* Clean out command structure on command error out */ 5143 memset(&idiag, 0, sizeof(idiag)); 5144 return nbytes; 5145 5146 error_out: 5147 /* Clean out command structure on command error out */ 5148 memset(&idiag, 0, sizeof(idiag)); 5149 return -EINVAL; 5150 } 5151 5152 /** 5153 * lpfc_idiag_extacc_avail_get - get the available extents information 5154 * @phba: pointer to lpfc hba data structure. 5155 * @pbuffer: pointer to internal buffer. 5156 * @len: length into the internal buffer data has been copied. 5157 * 5158 * Description: 5159 * This routine is to get the available extent information. 5160 * 5161 * Returns: 5162 * overall length of the data read into the internal buffer. 5163 **/ 5164 static int 5165 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 5166 { 5167 uint16_t ext_cnt = 0, ext_size = 0; 5168 5169 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5170 "\nAvailable Extents Information:\n"); 5171 5172 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5173 "\tPort Available VPI extents: "); 5174 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 5175 &ext_cnt, &ext_size); 5176 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5177 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5178 5179 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5180 "\tPort Available VFI extents: "); 5181 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 5182 &ext_cnt, &ext_size); 5183 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5184 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5185 5186 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5187 "\tPort Available RPI extents: "); 5188 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 5189 &ext_cnt, &ext_size); 5190 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5191 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5192 5193 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5194 "\tPort Available XRI extents: "); 5195 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 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 return len; 5201 } 5202 5203 /** 5204 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 5205 * @phba: pointer to lpfc hba data structure. 5206 * @pbuffer: pointer to internal buffer. 5207 * @len: length into the internal buffer data has been copied. 5208 * 5209 * Description: 5210 * This routine is to get the allocated extent information. 5211 * 5212 * Returns: 5213 * overall length of the data read into the internal buffer. 5214 **/ 5215 static int 5216 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 5217 { 5218 uint16_t ext_cnt, ext_size; 5219 int rc; 5220 5221 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5222 "\nAllocated Extents Information:\n"); 5223 5224 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5225 "\tHost Allocated VPI extents: "); 5226 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 5227 &ext_cnt, &ext_size); 5228 if (!rc) 5229 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5230 "Port %d Extent %3d, Size %3d\n", 5231 phba->brd_no, ext_cnt, ext_size); 5232 else 5233 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5234 "N/A\n"); 5235 5236 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5237 "\tHost Allocated VFI extents: "); 5238 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 5239 &ext_cnt, &ext_size); 5240 if (!rc) 5241 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5242 "Port %d Extent %3d, Size %3d\n", 5243 phba->brd_no, ext_cnt, ext_size); 5244 else 5245 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5246 "N/A\n"); 5247 5248 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5249 "\tHost Allocated RPI extents: "); 5250 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 5251 &ext_cnt, &ext_size); 5252 if (!rc) 5253 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5254 "Port %d Extent %3d, Size %3d\n", 5255 phba->brd_no, ext_cnt, ext_size); 5256 else 5257 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5258 "N/A\n"); 5259 5260 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5261 "\tHost Allocated XRI extents: "); 5262 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 5263 &ext_cnt, &ext_size); 5264 if (!rc) 5265 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5266 "Port %d Extent %3d, Size %3d\n", 5267 phba->brd_no, ext_cnt, ext_size); 5268 else 5269 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5270 "N/A\n"); 5271 5272 return len; 5273 } 5274 5275 /** 5276 * lpfc_idiag_extacc_drivr_get - get driver extent information 5277 * @phba: pointer to lpfc hba data structure. 5278 * @pbuffer: pointer to internal buffer. 5279 * @len: length into the internal buffer data has been copied. 5280 * 5281 * Description: 5282 * This routine is to get the driver extent information. 5283 * 5284 * Returns: 5285 * overall length of the data read into the internal buffer. 5286 **/ 5287 static int 5288 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 5289 { 5290 struct lpfc_rsrc_blks *rsrc_blks; 5291 int index; 5292 5293 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5294 "\nDriver Extents Information:\n"); 5295 5296 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5297 "\tVPI extents:\n"); 5298 index = 0; 5299 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 5300 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5301 "\t\tBlock %3d: Start %4d, Count %4d\n", 5302 index, rsrc_blks->rsrc_start, 5303 rsrc_blks->rsrc_size); 5304 index++; 5305 } 5306 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5307 "\tVFI extents:\n"); 5308 index = 0; 5309 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 5310 list) { 5311 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5312 "\t\tBlock %3d: Start %4d, Count %4d\n", 5313 index, rsrc_blks->rsrc_start, 5314 rsrc_blks->rsrc_size); 5315 index++; 5316 } 5317 5318 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5319 "\tRPI extents:\n"); 5320 index = 0; 5321 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 5322 list) { 5323 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5324 "\t\tBlock %3d: Start %4d, Count %4d\n", 5325 index, rsrc_blks->rsrc_start, 5326 rsrc_blks->rsrc_size); 5327 index++; 5328 } 5329 5330 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5331 "\tXRI extents:\n"); 5332 index = 0; 5333 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 5334 list) { 5335 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5336 "\t\tBlock %3d: Start %4d, Count %4d\n", 5337 index, rsrc_blks->rsrc_start, 5338 rsrc_blks->rsrc_size); 5339 index++; 5340 } 5341 5342 return len; 5343 } 5344 5345 /** 5346 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 5347 * @file: The file pointer to read from. 5348 * @buf: The buffer to copy the user data from. 5349 * @nbytes: The number of bytes to get. 5350 * @ppos: The position in the file to start reading from. 5351 * 5352 * This routine get the debugfs idiag command struct from user space and then 5353 * perform the syntax check for extent information access commands and sets 5354 * up the necessary states in the idiag command struct accordingly. 5355 * 5356 * It returns the @nbytges passing in from debugfs user space when successful. 5357 * In case of error conditions, it returns proper error code back to the user 5358 * space. 5359 **/ 5360 static ssize_t 5361 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 5362 size_t nbytes, loff_t *ppos) 5363 { 5364 struct lpfc_debug *debug = file->private_data; 5365 uint32_t ext_map; 5366 int rc; 5367 5368 /* This is a user write operation */ 5369 debug->op = LPFC_IDIAG_OP_WR; 5370 5371 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5372 if (rc < 0) 5373 return rc; 5374 5375 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5376 5377 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5378 goto error_out; 5379 if (rc != LPFC_EXT_ACC_CMD_ARG) 5380 goto error_out; 5381 if (!(ext_map & LPFC_EXT_ACC_ALL)) 5382 goto error_out; 5383 5384 return nbytes; 5385 error_out: 5386 /* Clean out command structure on command error out */ 5387 memset(&idiag, 0, sizeof(idiag)); 5388 return -EINVAL; 5389 } 5390 5391 /** 5392 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 5393 * @file: The file pointer to read from. 5394 * @buf: The buffer to copy the data to. 5395 * @nbytes: The number of bytes to read. 5396 * @ppos: The position in the file to start reading from. 5397 * 5398 * Description: 5399 * This routine reads data from the proper extent information according to 5400 * the idiag command, and copies to user @buf. 5401 * 5402 * Returns: 5403 * This function returns the amount of data that was read (this could be less 5404 * than @nbytes if the end of the file was reached) or a negative error value. 5405 **/ 5406 static ssize_t 5407 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 5408 loff_t *ppos) 5409 { 5410 struct lpfc_debug *debug = file->private_data; 5411 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5412 char *pbuffer; 5413 uint32_t ext_map; 5414 int len = 0; 5415 5416 /* This is a user read operation */ 5417 debug->op = LPFC_IDIAG_OP_RD; 5418 5419 if (!debug->buffer) 5420 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 5421 if (!debug->buffer) 5422 return 0; 5423 pbuffer = debug->buffer; 5424 if (*ppos) 5425 return 0; 5426 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5427 return 0; 5428 5429 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5430 if (ext_map & LPFC_EXT_ACC_AVAIL) 5431 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 5432 if (ext_map & LPFC_EXT_ACC_ALLOC) 5433 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 5434 if (ext_map & LPFC_EXT_ACC_DRIVR) 5435 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 5436 5437 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5438 } 5439 5440 static int 5441 lpfc_cgn_buffer_open(struct inode *inode, struct file *file) 5442 { 5443 struct lpfc_debug *debug; 5444 int rc = -ENOMEM; 5445 5446 debug = kmalloc_obj(*debug); 5447 if (!debug) 5448 goto out; 5449 5450 debug->buffer = vmalloc(LPFC_CGN_BUF_SIZE); 5451 if (!debug->buffer) { 5452 kfree(debug); 5453 goto out; 5454 } 5455 5456 debug->i_private = inode->i_private; 5457 file->private_data = debug; 5458 5459 rc = 0; 5460 out: 5461 return rc; 5462 } 5463 5464 static ssize_t 5465 lpfc_cgn_buffer_read(struct file *file, char __user *buf, size_t nbytes, 5466 loff_t *ppos) 5467 { 5468 struct lpfc_debug *debug = file->private_data; 5469 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5470 char *buffer = debug->buffer; 5471 uint32_t *ptr; 5472 int cnt, len = 0; 5473 5474 if (!phba->sli4_hba.pc_sli4_params.mi_ver || !phba->cgn_i) { 5475 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5476 "Congestion Mgmt is not supported\n"); 5477 goto out; 5478 } 5479 ptr = (uint32_t *)phba->cgn_i->virt; 5480 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5481 "Congestion Buffer Header\n"); 5482 /* Dump the first 32 bytes */ 5483 cnt = 32; 5484 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5485 "000: %08x %08x %08x %08x %08x %08x %08x %08x\n", 5486 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3), 5487 *(ptr + 4), *(ptr + 5), *(ptr + 6), *(ptr + 7)); 5488 ptr += 8; 5489 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5490 "Congestion Buffer Data\n"); 5491 while (cnt < sizeof(struct lpfc_cgn_info)) { 5492 if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { 5493 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5494 "Truncated . . .\n"); 5495 goto out; 5496 } 5497 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5498 "%03x: %08x %08x %08x %08x " 5499 "%08x %08x %08x %08x\n", 5500 cnt, *ptr, *(ptr + 1), *(ptr + 2), 5501 *(ptr + 3), *(ptr + 4), *(ptr + 5), 5502 *(ptr + 6), *(ptr + 7)); 5503 cnt += 32; 5504 ptr += 8; 5505 } 5506 if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { 5507 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5508 "Truncated . . .\n"); 5509 goto out; 5510 } 5511 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5512 "Parameter Data\n"); 5513 ptr = (uint32_t *)&phba->cgn_p; 5514 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5515 "%08x %08x %08x %08x\n", 5516 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3)); 5517 out: 5518 return simple_read_from_buffer(buf, nbytes, ppos, buffer, len); 5519 } 5520 5521 static int 5522 lpfc_cgn_buffer_release(struct inode *inode, struct file *file) 5523 { 5524 struct lpfc_debug *debug = file->private_data; 5525 5526 vfree(debug->buffer); 5527 kfree(debug); 5528 5529 return 0; 5530 } 5531 5532 static int 5533 lpfc_rx_monitor_open(struct inode *inode, struct file *file) 5534 { 5535 struct lpfc_rx_monitor_debug *debug; 5536 int rc = -ENOMEM; 5537 5538 debug = kmalloc_obj(*debug); 5539 if (!debug) 5540 goto out; 5541 5542 debug->buffer = vmalloc(MAX_DEBUGFS_RX_INFO_SIZE); 5543 if (!debug->buffer) { 5544 kfree(debug); 5545 goto out; 5546 } 5547 5548 debug->i_private = inode->i_private; 5549 file->private_data = debug; 5550 5551 rc = 0; 5552 out: 5553 return rc; 5554 } 5555 5556 static ssize_t 5557 lpfc_rx_monitor_read(struct file *file, char __user *buf, size_t nbytes, 5558 loff_t *ppos) 5559 { 5560 struct lpfc_rx_monitor_debug *debug = file->private_data; 5561 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5562 char *buffer = debug->buffer; 5563 5564 if (!phba->rx_monitor) { 5565 scnprintf(buffer, MAX_DEBUGFS_RX_INFO_SIZE, 5566 "Rx Monitor Info is empty.\n"); 5567 } else { 5568 lpfc_rx_monitor_report(phba, phba->rx_monitor, buffer, 5569 MAX_DEBUGFS_RX_INFO_SIZE, 5570 LPFC_MAX_RXMONITOR_ENTRY); 5571 } 5572 5573 return simple_read_from_buffer(buf, nbytes, ppos, buffer, 5574 strlen(buffer)); 5575 } 5576 5577 static int 5578 lpfc_rx_monitor_release(struct inode *inode, struct file *file) 5579 { 5580 struct lpfc_rx_monitor_debug *debug = file->private_data; 5581 5582 vfree(debug->buffer); 5583 kfree(debug); 5584 5585 return 0; 5586 } 5587 5588 #undef lpfc_debugfs_op_disc_trc 5589 static const struct file_operations lpfc_debugfs_op_disc_trc = { 5590 .owner = THIS_MODULE, 5591 .open = lpfc_debugfs_disc_trc_open, 5592 .llseek = lpfc_debugfs_lseek, 5593 .read = lpfc_debugfs_read, 5594 .release = lpfc_debugfs_release, 5595 }; 5596 5597 #undef lpfc_debugfs_op_nodelist 5598 static const struct file_operations lpfc_debugfs_op_nodelist = { 5599 .owner = THIS_MODULE, 5600 .open = lpfc_debugfs_nodelist_open, 5601 .llseek = lpfc_debugfs_lseek, 5602 .read = lpfc_debugfs_read, 5603 .release = lpfc_debugfs_release, 5604 }; 5605 5606 #undef lpfc_debugfs_op_multixripools 5607 static const struct file_operations lpfc_debugfs_op_multixripools = { 5608 .owner = THIS_MODULE, 5609 .open = lpfc_debugfs_multixripools_open, 5610 .llseek = lpfc_debugfs_lseek, 5611 .read = lpfc_debugfs_read, 5612 .write = lpfc_debugfs_multixripools_write, 5613 .release = lpfc_debugfs_release, 5614 }; 5615 5616 #undef lpfc_debugfs_op_hbqinfo 5617 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 5618 .owner = THIS_MODULE, 5619 .open = lpfc_debugfs_hbqinfo_open, 5620 .llseek = lpfc_debugfs_lseek, 5621 .read = lpfc_debugfs_read, 5622 .release = lpfc_debugfs_release, 5623 }; 5624 5625 #ifdef LPFC_HDWQ_LOCK_STAT 5626 #undef lpfc_debugfs_op_lockstat 5627 static const struct file_operations lpfc_debugfs_op_lockstat = { 5628 .owner = THIS_MODULE, 5629 .open = lpfc_debugfs_lockstat_open, 5630 .llseek = lpfc_debugfs_lseek, 5631 .read = lpfc_debugfs_read, 5632 .write = lpfc_debugfs_lockstat_write, 5633 .release = lpfc_debugfs_release, 5634 }; 5635 #endif 5636 5637 #undef lpfc_debugfs_ras_log 5638 static const struct file_operations lpfc_debugfs_ras_log = { 5639 .owner = THIS_MODULE, 5640 .open = lpfc_debugfs_ras_log_open, 5641 .llseek = lpfc_debugfs_lseek, 5642 .read = lpfc_debugfs_read, 5643 .release = lpfc_debugfs_ras_log_release, 5644 }; 5645 5646 #undef lpfc_debugfs_op_dumpHBASlim 5647 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 5648 .owner = THIS_MODULE, 5649 .open = lpfc_debugfs_dumpHBASlim_open, 5650 .llseek = lpfc_debugfs_lseek, 5651 .read = lpfc_debugfs_read, 5652 .release = lpfc_debugfs_release, 5653 }; 5654 5655 #undef lpfc_debugfs_op_dumpHostSlim 5656 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 5657 .owner = THIS_MODULE, 5658 .open = lpfc_debugfs_dumpHostSlim_open, 5659 .llseek = lpfc_debugfs_lseek, 5660 .read = lpfc_debugfs_read, 5661 .release = lpfc_debugfs_release, 5662 }; 5663 5664 #undef lpfc_debugfs_op_nvmestat 5665 static const struct file_operations lpfc_debugfs_op_nvmestat = { 5666 .owner = THIS_MODULE, 5667 .open = lpfc_debugfs_nvmestat_open, 5668 .llseek = lpfc_debugfs_lseek, 5669 .read = lpfc_debugfs_read, 5670 .write = lpfc_debugfs_nvmestat_write, 5671 .release = lpfc_debugfs_release, 5672 }; 5673 5674 #undef lpfc_debugfs_op_scsistat 5675 static const struct file_operations lpfc_debugfs_op_scsistat = { 5676 .owner = THIS_MODULE, 5677 .open = lpfc_debugfs_scsistat_open, 5678 .llseek = lpfc_debugfs_lseek, 5679 .read = lpfc_debugfs_read, 5680 .write = lpfc_debugfs_scsistat_write, 5681 .release = lpfc_debugfs_release, 5682 }; 5683 5684 #undef lpfc_debugfs_op_ioktime 5685 static const struct file_operations lpfc_debugfs_op_ioktime = { 5686 .owner = THIS_MODULE, 5687 .open = lpfc_debugfs_ioktime_open, 5688 .llseek = lpfc_debugfs_lseek, 5689 .read = lpfc_debugfs_read, 5690 .write = lpfc_debugfs_ioktime_write, 5691 .release = lpfc_debugfs_release, 5692 }; 5693 5694 #undef lpfc_debugfs_op_nvmeio_trc 5695 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 5696 .owner = THIS_MODULE, 5697 .open = lpfc_debugfs_nvmeio_trc_open, 5698 .llseek = lpfc_debugfs_lseek, 5699 .read = lpfc_debugfs_read, 5700 .write = lpfc_debugfs_nvmeio_trc_write, 5701 .release = lpfc_debugfs_release, 5702 }; 5703 5704 #undef lpfc_debugfs_op_hdwqstat 5705 static const struct file_operations lpfc_debugfs_op_hdwqstat = { 5706 .owner = THIS_MODULE, 5707 .open = lpfc_debugfs_hdwqstat_open, 5708 .llseek = lpfc_debugfs_lseek, 5709 .read = lpfc_debugfs_read, 5710 .write = lpfc_debugfs_hdwqstat_write, 5711 .release = lpfc_debugfs_release, 5712 }; 5713 5714 #undef lpfc_debugfs_op_dif_err 5715 static const struct file_operations lpfc_debugfs_op_dif_err = { 5716 .owner = THIS_MODULE, 5717 .open = simple_open, 5718 .llseek = lpfc_debugfs_lseek, 5719 .read = lpfc_debugfs_dif_err_read, 5720 .write = lpfc_debugfs_dif_err_write, 5721 .release = lpfc_debugfs_dif_err_release, 5722 }; 5723 5724 #undef lpfc_debugfs_op_slow_ring_trc 5725 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 5726 .owner = THIS_MODULE, 5727 .open = lpfc_debugfs_slow_ring_trc_open, 5728 .llseek = lpfc_debugfs_lseek, 5729 .read = lpfc_debugfs_read, 5730 .release = lpfc_debugfs_release, 5731 }; 5732 5733 static struct dentry *lpfc_debugfs_root = NULL; 5734 static unsigned int lpfc_debugfs_hba_count; 5735 5736 /* 5737 * File operations for the iDiag debugfs 5738 */ 5739 #undef lpfc_idiag_op_pciCfg 5740 static const struct file_operations lpfc_idiag_op_pciCfg = { 5741 .owner = THIS_MODULE, 5742 .open = lpfc_idiag_open, 5743 .llseek = lpfc_debugfs_lseek, 5744 .read = lpfc_idiag_pcicfg_read, 5745 .write = lpfc_idiag_pcicfg_write, 5746 .release = lpfc_idiag_cmd_release, 5747 }; 5748 5749 #undef lpfc_idiag_op_barAcc 5750 static const struct file_operations lpfc_idiag_op_barAcc = { 5751 .owner = THIS_MODULE, 5752 .open = lpfc_idiag_open, 5753 .llseek = lpfc_debugfs_lseek, 5754 .read = lpfc_idiag_baracc_read, 5755 .write = lpfc_idiag_baracc_write, 5756 .release = lpfc_idiag_cmd_release, 5757 }; 5758 5759 #undef lpfc_idiag_op_queInfo 5760 static const struct file_operations lpfc_idiag_op_queInfo = { 5761 .owner = THIS_MODULE, 5762 .open = lpfc_idiag_open, 5763 .read = lpfc_idiag_queinfo_read, 5764 .release = lpfc_idiag_release, 5765 }; 5766 5767 #undef lpfc_idiag_op_queAcc 5768 static const struct file_operations lpfc_idiag_op_queAcc = { 5769 .owner = THIS_MODULE, 5770 .open = lpfc_idiag_open, 5771 .llseek = lpfc_debugfs_lseek, 5772 .read = lpfc_idiag_queacc_read, 5773 .write = lpfc_idiag_queacc_write, 5774 .release = lpfc_idiag_cmd_release, 5775 }; 5776 5777 #undef lpfc_idiag_op_drbAcc 5778 static const struct file_operations lpfc_idiag_op_drbAcc = { 5779 .owner = THIS_MODULE, 5780 .open = lpfc_idiag_open, 5781 .llseek = lpfc_debugfs_lseek, 5782 .read = lpfc_idiag_drbacc_read, 5783 .write = lpfc_idiag_drbacc_write, 5784 .release = lpfc_idiag_cmd_release, 5785 }; 5786 5787 #undef lpfc_idiag_op_ctlAcc 5788 static const struct file_operations lpfc_idiag_op_ctlAcc = { 5789 .owner = THIS_MODULE, 5790 .open = lpfc_idiag_open, 5791 .llseek = lpfc_debugfs_lseek, 5792 .read = lpfc_idiag_ctlacc_read, 5793 .write = lpfc_idiag_ctlacc_write, 5794 .release = lpfc_idiag_cmd_release, 5795 }; 5796 5797 #undef lpfc_idiag_op_mbxAcc 5798 static const struct file_operations lpfc_idiag_op_mbxAcc = { 5799 .owner = THIS_MODULE, 5800 .open = lpfc_idiag_open, 5801 .llseek = lpfc_debugfs_lseek, 5802 .read = lpfc_idiag_mbxacc_read, 5803 .write = lpfc_idiag_mbxacc_write, 5804 .release = lpfc_idiag_cmd_release, 5805 }; 5806 5807 #undef lpfc_idiag_op_extAcc 5808 static const struct file_operations lpfc_idiag_op_extAcc = { 5809 .owner = THIS_MODULE, 5810 .open = lpfc_idiag_open, 5811 .llseek = lpfc_debugfs_lseek, 5812 .read = lpfc_idiag_extacc_read, 5813 .write = lpfc_idiag_extacc_write, 5814 .release = lpfc_idiag_cmd_release, 5815 }; 5816 #undef lpfc_cgn_buffer_op 5817 static const struct file_operations lpfc_cgn_buffer_op = { 5818 .owner = THIS_MODULE, 5819 .open = lpfc_cgn_buffer_open, 5820 .llseek = lpfc_debugfs_lseek, 5821 .read = lpfc_cgn_buffer_read, 5822 .release = lpfc_cgn_buffer_release, 5823 }; 5824 5825 #undef lpfc_rx_monitor_op 5826 static const struct file_operations lpfc_rx_monitor_op = { 5827 .owner = THIS_MODULE, 5828 .open = lpfc_rx_monitor_open, 5829 .llseek = lpfc_debugfs_lseek, 5830 .read = lpfc_rx_monitor_read, 5831 .release = lpfc_rx_monitor_release, 5832 }; 5833 #endif 5834 5835 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 5836 * @phba: Pointer to HBA context object. 5837 * @dmabuf: Pointer to a DMA buffer descriptor. 5838 * 5839 * Description: 5840 * This routine dump a bsg pass-through non-embedded mailbox command with 5841 * external buffer. 5842 **/ 5843 void 5844 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 5845 enum mbox_type mbox_tp, enum dma_type dma_tp, 5846 enum sta_type sta_tp, 5847 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 5848 { 5849 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5850 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 5851 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5852 int len = 0; 5853 uint32_t do_dump = 0; 5854 uint32_t *pword; 5855 uint32_t i; 5856 5857 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 5858 return; 5859 5860 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5861 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5862 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5863 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5864 5865 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 5866 (*mbx_dump_cnt == 0) || 5867 (*mbx_word_cnt == 0)) 5868 return; 5869 5870 if (*mbx_mbox_cmd != 0x9B) 5871 return; 5872 5873 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 5874 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 5875 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 5876 pr_err("\nRead mbox command (x%x), " 5877 "nemb:0x%x, extbuf_cnt:%d:\n", 5878 sta_tp, nemb_tp, ext_buf); 5879 } 5880 } 5881 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5882 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5883 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5884 pr_err("\nRead mbox buffer (x%x), " 5885 "nemb:0x%x, extbuf_seq:%d:\n", 5886 sta_tp, nemb_tp, ext_buf); 5887 } 5888 } 5889 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5890 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5891 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5892 pr_err("\nWrite mbox command (x%x), " 5893 "nemb:0x%x, extbuf_cnt:%d:\n", 5894 sta_tp, nemb_tp, ext_buf); 5895 } 5896 } 5897 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5898 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5899 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5900 pr_err("\nWrite mbox buffer (x%x), " 5901 "nemb:0x%x, extbuf_seq:%d:\n", 5902 sta_tp, nemb_tp, ext_buf); 5903 } 5904 } 5905 5906 /* dump buffer content */ 5907 if (do_dump) { 5908 pword = (uint32_t *)dmabuf->virt; 5909 for (i = 0; i < *mbx_word_cnt; i++) { 5910 if (!(i % 8)) { 5911 if (i != 0) 5912 pr_err("%s\n", line_buf); 5913 len = 0; 5914 len += scnprintf(line_buf+len, 5915 LPFC_MBX_ACC_LBUF_SZ-len, 5916 "%03d: ", i); 5917 } 5918 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5919 "%08x ", (uint32_t)*pword); 5920 pword++; 5921 } 5922 if ((i - 1) % 8) 5923 pr_err("%s\n", line_buf); 5924 (*mbx_dump_cnt)--; 5925 } 5926 5927 /* Clean out command structure on reaching dump count */ 5928 if (*mbx_dump_cnt == 0) 5929 memset(&idiag, 0, sizeof(idiag)); 5930 return; 5931 #endif 5932 } 5933 5934 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5935 * @phba: Pointer to HBA context object. 5936 * @dmabuf: Pointer to a DMA buffer descriptor. 5937 * 5938 * Description: 5939 * This routine dump a pass-through non-embedded mailbox command from issue 5940 * mailbox command. 5941 **/ 5942 void 5943 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5944 { 5945 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5946 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5947 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5948 int len = 0; 5949 uint32_t *pword; 5950 uint8_t *pbyte; 5951 uint32_t i, j; 5952 5953 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5954 return; 5955 5956 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5957 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5958 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5959 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5960 5961 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5962 (*mbx_dump_cnt == 0) || 5963 (*mbx_word_cnt == 0)) 5964 return; 5965 5966 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5967 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5968 return; 5969 5970 /* dump buffer content */ 5971 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 5972 pr_err("Mailbox command:0x%x dump by word:\n", 5973 pmbox->mbxCommand); 5974 pword = (uint32_t *)pmbox; 5975 for (i = 0; i < *mbx_word_cnt; i++) { 5976 if (!(i % 8)) { 5977 if (i != 0) 5978 pr_err("%s\n", line_buf); 5979 len = 0; 5980 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5981 len += scnprintf(line_buf+len, 5982 LPFC_MBX_ACC_LBUF_SZ-len, 5983 "%03d: ", i); 5984 } 5985 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5986 "%08x ", 5987 ((uint32_t)*pword) & 0xffffffff); 5988 pword++; 5989 } 5990 if ((i - 1) % 8) 5991 pr_err("%s\n", line_buf); 5992 pr_err("\n"); 5993 } 5994 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 5995 pr_err("Mailbox command:0x%x dump by byte:\n", 5996 pmbox->mbxCommand); 5997 pbyte = (uint8_t *)pmbox; 5998 for (i = 0; i < *mbx_word_cnt; i++) { 5999 if (!(i % 8)) { 6000 if (i != 0) 6001 pr_err("%s\n", line_buf); 6002 len = 0; 6003 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 6004 len += scnprintf(line_buf+len, 6005 LPFC_MBX_ACC_LBUF_SZ-len, 6006 "%03d: ", i); 6007 } 6008 for (j = 0; j < 4; j++) { 6009 len += scnprintf(line_buf+len, 6010 LPFC_MBX_ACC_LBUF_SZ-len, 6011 "%02x", 6012 ((uint8_t)*pbyte) & 0xff); 6013 pbyte++; 6014 } 6015 len += scnprintf(line_buf+len, 6016 LPFC_MBX_ACC_LBUF_SZ-len, " "); 6017 } 6018 if ((i - 1) % 8) 6019 pr_err("%s\n", line_buf); 6020 pr_err("\n"); 6021 } 6022 (*mbx_dump_cnt)--; 6023 6024 /* Clean out command structure on reaching dump count */ 6025 if (*mbx_dump_cnt == 0) 6026 memset(&idiag, 0, sizeof(idiag)); 6027 return; 6028 #endif 6029 } 6030 6031 /** 6032 * lpfc_debugfs_initialize - Initialize debugfs for a vport 6033 * @vport: The vport pointer to initialize. 6034 * 6035 * Description: 6036 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 6037 * If not already created, this routine will create the lpfc directory, and 6038 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 6039 * also create each file used to access lpfc specific debugfs information. 6040 **/ 6041 inline void 6042 lpfc_debugfs_initialize(struct lpfc_vport *vport) 6043 { 6044 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6045 struct lpfc_hba *phba = vport->phba; 6046 char name[64]; 6047 uint32_t num, i; 6048 bool pport_setup = false; 6049 6050 if (!lpfc_debugfs_enable) 6051 return; 6052 6053 /* Setup lpfc root directory */ 6054 if (!lpfc_debugfs_root) { 6055 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 6056 lpfc_debugfs_hba_count = 0; 6057 if (IS_ERR(lpfc_debugfs_root)) { 6058 lpfc_vlog_msg(vport, KERN_WARNING, LOG_INIT, 6059 "0527 Cannot create debugfs lpfc\n"); 6060 return; 6061 } 6062 } 6063 if (!lpfc_debugfs_start_time) 6064 lpfc_debugfs_start_time = jiffies; 6065 6066 /* Setup funcX directory for specific HBA PCI function */ 6067 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 6068 if (!phba->hba_debugfs_root) { 6069 pport_setup = true; 6070 phba->hba_debugfs_root = 6071 debugfs_create_dir(name, lpfc_debugfs_root); 6072 phba->debugfs_vport_count = 0; 6073 if (IS_ERR(phba->hba_debugfs_root)) { 6074 lpfc_vlog_msg(vport, KERN_WARNING, LOG_INIT, 6075 "0528 Cannot create debugfs %s\n", name); 6076 return; 6077 } 6078 lpfc_debugfs_hba_count++; 6079 6080 /* Multi-XRI pools */ 6081 debugfs_create_file("multixripools", 0644, 6082 phba->hba_debugfs_root, phba, 6083 &lpfc_debugfs_op_multixripools); 6084 6085 /* Congestion Info Buffer */ 6086 debugfs_create_file("cgn_buffer", 0644, phba->hba_debugfs_root, 6087 phba, &lpfc_cgn_buffer_op); 6088 6089 /* RX Monitor */ 6090 debugfs_create_file("rx_monitor", 0644, phba->hba_debugfs_root, 6091 phba, &lpfc_rx_monitor_op); 6092 6093 /* RAS log */ 6094 debugfs_create_file("ras_log", 0644, phba->hba_debugfs_root, 6095 phba, &lpfc_debugfs_ras_log); 6096 6097 /* Setup hbqinfo */ 6098 debugfs_create_file("hbqinfo", 0644, phba->hba_debugfs_root, 6099 phba, &lpfc_debugfs_op_hbqinfo); 6100 6101 #ifdef LPFC_HDWQ_LOCK_STAT 6102 /* Setup lockstat */ 6103 debugfs_create_file("lockstat", 0644, phba->hba_debugfs_root, 6104 phba, &lpfc_debugfs_op_lockstat); 6105 #endif 6106 if (phba->sli_rev < LPFC_SLI_REV4) { 6107 /* Setup dumpHBASlim */ 6108 debugfs_create_file("dumpHBASlim", 0644, 6109 phba->hba_debugfs_root, phba, 6110 &lpfc_debugfs_op_dumpHBASlim); 6111 } 6112 6113 if (phba->sli_rev < LPFC_SLI_REV4) { 6114 /* Setup dumpHostSlim */ 6115 debugfs_create_file("dumpHostSlim", 0644, 6116 phba->hba_debugfs_root, phba, 6117 &lpfc_debugfs_op_dumpHostSlim); 6118 } 6119 6120 /* Setup DIF Error Injections */ 6121 debugfs_create_file_aux_num("InjErrLBA", 0644, 6122 phba->hba_debugfs_root, phba, 6123 InjErrLBA, 6124 &lpfc_debugfs_op_dif_err); 6125 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 6126 6127 debugfs_create_file_aux_num("InjErrNPortID", 0644, 6128 phba->hba_debugfs_root, phba, 6129 InjErrNPortID, 6130 &lpfc_debugfs_op_dif_err); 6131 6132 debugfs_create_file_aux_num("InjErrWWPN", 0644, 6133 phba->hba_debugfs_root, phba, 6134 InjErrWWPN, 6135 &lpfc_debugfs_op_dif_err); 6136 6137 debugfs_create_file_aux_num("writeGuardInjErr", 0644, 6138 phba->hba_debugfs_root, phba, 6139 writeGuard, 6140 &lpfc_debugfs_op_dif_err); 6141 6142 debugfs_create_file_aux_num("writeAppInjErr", 0644, 6143 phba->hba_debugfs_root, phba, 6144 writeApp, &lpfc_debugfs_op_dif_err); 6145 6146 debugfs_create_file_aux_num("writeRefInjErr", 0644, 6147 phba->hba_debugfs_root, phba, 6148 writeRef, &lpfc_debugfs_op_dif_err); 6149 6150 debugfs_create_file_aux_num("readGuardInjErr", 0644, 6151 phba->hba_debugfs_root, phba, 6152 readGuard, 6153 &lpfc_debugfs_op_dif_err); 6154 6155 debugfs_create_file_aux_num("readAppInjErr", 0644, 6156 phba->hba_debugfs_root, phba, 6157 readApp, &lpfc_debugfs_op_dif_err); 6158 6159 debugfs_create_file_aux_num("readRefInjErr", 0644, 6160 phba->hba_debugfs_root, phba, 6161 readRef, &lpfc_debugfs_op_dif_err); 6162 6163 /* Setup slow ring trace */ 6164 if (lpfc_debugfs_max_slow_ring_trc) { 6165 num = lpfc_debugfs_max_slow_ring_trc - 1; 6166 if (num & lpfc_debugfs_max_slow_ring_trc) { 6167 /* Change to be a power of 2 */ 6168 num = lpfc_debugfs_max_slow_ring_trc; 6169 i = 0; 6170 while (num > 1) { 6171 num = num >> 1; 6172 i++; 6173 } 6174 lpfc_debugfs_max_slow_ring_trc = (1 << i); 6175 pr_info("lpfc_debugfs_max_slow_ring_trc " 6176 "changed to %d\n", 6177 lpfc_debugfs_max_slow_ring_trc); 6178 } 6179 } 6180 6181 debugfs_create_file("slow_ring_trace", 0644, 6182 phba->hba_debugfs_root, phba, 6183 &lpfc_debugfs_op_slow_ring_trc); 6184 if (!phba->slow_ring_trc) { 6185 phba->slow_ring_trc = kzalloc_objs(struct lpfc_debugfs_trc, 6186 lpfc_debugfs_max_slow_ring_trc); 6187 if (!phba->slow_ring_trc) { 6188 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6189 "0416 Cannot create debugfs " 6190 "slow_ring buffer\n"); 6191 goto out; 6192 } 6193 atomic_set(&phba->slow_ring_trc_cnt, 0); 6194 } 6195 6196 debugfs_create_file("nvmeio_trc", 0644, phba->hba_debugfs_root, 6197 phba, &lpfc_debugfs_op_nvmeio_trc); 6198 6199 atomic_set(&phba->nvmeio_trc_cnt, 0); 6200 if (lpfc_debugfs_max_nvmeio_trc) { 6201 num = lpfc_debugfs_max_nvmeio_trc - 1; 6202 if (num & lpfc_debugfs_max_nvmeio_trc) { 6203 /* Change to be a power of 2 */ 6204 num = lpfc_debugfs_max_nvmeio_trc; 6205 i = 0; 6206 while (num > 1) { 6207 num = num >> 1; 6208 i++; 6209 } 6210 lpfc_debugfs_max_nvmeio_trc = (1 << i); 6211 pr_info("lpfc_debugfs_max_nvmeio_trc changed " 6212 "to %d\n", 6213 lpfc_debugfs_max_nvmeio_trc); 6214 } 6215 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 6216 6217 /* Allocate trace buffer and initialize */ 6218 phba->nvmeio_trc = kzalloc( 6219 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 6220 phba->nvmeio_trc_size), GFP_KERNEL); 6221 6222 if (!phba->nvmeio_trc) { 6223 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6224 "0576 Cannot create debugfs " 6225 "nvmeio_trc buffer\n"); 6226 goto nvmeio_off; 6227 } 6228 phba->nvmeio_trc_on = 1; 6229 phba->nvmeio_trc_output_idx = 0; 6230 } else { 6231 nvmeio_off: 6232 phba->nvmeio_trc_size = 0; 6233 phba->nvmeio_trc_on = 0; 6234 phba->nvmeio_trc_output_idx = 0; 6235 phba->nvmeio_trc = NULL; 6236 } 6237 } 6238 6239 snprintf(name, sizeof(name), "vport%d", vport->vpi); 6240 if (!vport->vport_debugfs_root) { 6241 vport->vport_debugfs_root = 6242 debugfs_create_dir(name, phba->hba_debugfs_root); 6243 if (IS_ERR(vport->vport_debugfs_root)) { 6244 lpfc_vlog_msg(vport, KERN_WARNING, LOG_INIT, 6245 "0529 Cannot create debugfs %s\n", name); 6246 return; 6247 } 6248 phba->debugfs_vport_count++; 6249 } 6250 6251 if (lpfc_debugfs_max_disc_trc) { 6252 num = lpfc_debugfs_max_disc_trc - 1; 6253 if (num & lpfc_debugfs_max_disc_trc) { 6254 /* Change to be a power of 2 */ 6255 num = lpfc_debugfs_max_disc_trc; 6256 i = 0; 6257 while (num > 1) { 6258 num = num >> 1; 6259 i++; 6260 } 6261 lpfc_debugfs_max_disc_trc = (1 << i); 6262 pr_info("lpfc_debugfs_max_disc_trc changed to %d\n", 6263 lpfc_debugfs_max_disc_trc); 6264 } 6265 } 6266 6267 vport->disc_trc = kzalloc( 6268 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 6269 GFP_KERNEL); 6270 6271 if (!vport->disc_trc) { 6272 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6273 "0418 Cannot create debugfs disc trace " 6274 "buffer\n"); 6275 goto out; 6276 } 6277 atomic_set(&vport->disc_trc_cnt, 0); 6278 6279 debugfs_create_file("discovery_trace", 0644, vport->vport_debugfs_root, 6280 vport, &lpfc_debugfs_op_disc_trc); 6281 6282 debugfs_create_file("nodelist", 0644, vport->vport_debugfs_root, vport, 6283 &lpfc_debugfs_op_nodelist); 6284 6285 debugfs_create_file("nvmestat", 0644, vport->vport_debugfs_root, vport, 6286 &lpfc_debugfs_op_nvmestat); 6287 6288 debugfs_create_file("scsistat", 0644, vport->vport_debugfs_root, vport, 6289 &lpfc_debugfs_op_scsistat); 6290 6291 debugfs_create_file("ioktime", 0644, vport->vport_debugfs_root, vport, 6292 &lpfc_debugfs_op_ioktime); 6293 6294 debugfs_create_file("hdwqstat", 0644, vport->vport_debugfs_root, vport, 6295 &lpfc_debugfs_op_hdwqstat); 6296 6297 /* 6298 * The following section is for additional directories/files for the 6299 * physical port. 6300 */ 6301 6302 if (!pport_setup) 6303 return; 6304 6305 /* 6306 * iDiag debugfs root entry points for SLI4 device only 6307 */ 6308 if (phba->sli_rev < LPFC_SLI_REV4) 6309 return; 6310 6311 if (!phba->idiag_root) { 6312 phba->idiag_root = 6313 debugfs_create_dir("iDiag", phba->hba_debugfs_root); 6314 /* Initialize iDiag data structure */ 6315 memset(&idiag, 0, sizeof(idiag)); 6316 } 6317 6318 /* iDiag read PCI config space */ 6319 debugfs_create_file("pciCfg", 0644, phba->idiag_root, phba, 6320 &lpfc_idiag_op_pciCfg); 6321 idiag.offset.last_rd = 0; 6322 6323 /* iDiag PCI BAR access */ 6324 debugfs_create_file("barAcc", 0644, phba->idiag_root, phba, 6325 &lpfc_idiag_op_barAcc); 6326 idiag.offset.last_rd = 0; 6327 6328 /* iDiag get PCI function queue information */ 6329 debugfs_create_file("queInfo", 0444, phba->idiag_root, phba, 6330 &lpfc_idiag_op_queInfo); 6331 6332 /* iDiag access PCI function queue */ 6333 debugfs_create_file("queAcc", 0644, phba->idiag_root, phba, 6334 &lpfc_idiag_op_queAcc); 6335 6336 /* iDiag access PCI function doorbell registers */ 6337 debugfs_create_file("drbAcc", 0644, phba->idiag_root, phba, 6338 &lpfc_idiag_op_drbAcc); 6339 6340 /* iDiag access PCI function control registers */ 6341 debugfs_create_file("ctlAcc", 0644, phba->idiag_root, phba, 6342 &lpfc_idiag_op_ctlAcc); 6343 6344 /* iDiag access mbox commands */ 6345 debugfs_create_file("mbxAcc", 0644, phba->idiag_root, phba, 6346 &lpfc_idiag_op_mbxAcc); 6347 6348 /* iDiag extents access commands */ 6349 if (phba->sli4_hba.extents_in_use) { 6350 debugfs_create_file("extAcc", 0644, phba->idiag_root, phba, 6351 &lpfc_idiag_op_extAcc); 6352 } 6353 out: 6354 /* alloc'ed items are kfree'd in lpfc_debugfs_terminate */ 6355 return; 6356 #endif 6357 } 6358 6359 /** 6360 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 6361 * @vport: The vport pointer to remove from debugfs. 6362 * 6363 * Description: 6364 * When Debugfs is configured this routine removes debugfs file system elements 6365 * that are specific to this vport. It also checks to see if there are any 6366 * users left for the debugfs directories associated with the HBA and driver. If 6367 * this is the last user of the HBA directory or driver directory then it will 6368 * remove those from the debugfs infrastructure as well. 6369 **/ 6370 inline void 6371 lpfc_debugfs_terminate(struct lpfc_vport *vport) 6372 { 6373 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6374 struct lpfc_hba *phba = vport->phba; 6375 6376 kfree(vport->disc_trc); 6377 vport->disc_trc = NULL; 6378 6379 if (vport->vport_debugfs_root) { 6380 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 6381 vport->vport_debugfs_root = NULL; 6382 phba->debugfs_vport_count--; 6383 } 6384 6385 if (!phba->debugfs_vport_count) { 6386 kfree(phba->slow_ring_trc); 6387 phba->slow_ring_trc = NULL; 6388 6389 kfree(phba->nvmeio_trc); 6390 phba->nvmeio_trc = NULL; 6391 6392 if (phba->hba_debugfs_root) { 6393 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 6394 phba->hba_debugfs_root = NULL; 6395 lpfc_debugfs_hba_count--; 6396 } 6397 6398 if (!lpfc_debugfs_hba_count) { 6399 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 6400 lpfc_debugfs_root = NULL; 6401 } 6402 } 6403 #endif 6404 return; 6405 } 6406 6407 /* 6408 * Driver debug utility routines outside of debugfs. The debug utility 6409 * routines implemented here is intended to be used in the instrumented 6410 * debug driver for debugging host or port issues. 6411 */ 6412 6413 /** 6414 * lpfc_debug_dump_all_queues - dump all the queues with a hba 6415 * @phba: Pointer to HBA context object. 6416 * 6417 * This function dumps entries of all the queues asociated with the @phba. 6418 **/ 6419 void 6420 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 6421 { 6422 int idx; 6423 6424 /* 6425 * Dump Work Queues (WQs) 6426 */ 6427 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 6428 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 6429 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 6430 6431 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6432 lpfc_debug_dump_wq(phba, DUMP_IO, idx); 6433 6434 lpfc_debug_dump_hdr_rq(phba); 6435 lpfc_debug_dump_dat_rq(phba); 6436 /* 6437 * Dump Complete Queues (CQs) 6438 */ 6439 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 6440 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 6441 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 6442 6443 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6444 lpfc_debug_dump_cq(phba, DUMP_IO, idx); 6445 6446 /* 6447 * Dump Event Queues (EQs) 6448 */ 6449 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6450 lpfc_debug_dump_hba_eq(phba, idx); 6451 } 6452