1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2007-2015 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * * 10 * This program is free software; you can redistribute it and/or * 11 * modify it under the terms of version 2 of the GNU General * 12 * Public License as published by the Free Software Foundation. * 13 * This program is distributed in the hope that it will be useful. * 14 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 15 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 16 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 17 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 18 * TO BE LEGALLY INVALID. See the GNU General Public License for * 19 * more details, a copy of which can be found in the file COPYING * 20 * included with this package. * 21 *******************************************************************/ 22 23 #include <linux/blkdev.h> 24 #include <linux/delay.h> 25 #include <linux/module.h> 26 #include <linux/dma-mapping.h> 27 #include <linux/idr.h> 28 #include <linux/interrupt.h> 29 #include <linux/kthread.h> 30 #include <linux/slab.h> 31 #include <linux/pci.h> 32 #include <linux/spinlock.h> 33 #include <linux/ctype.h> 34 #include <linux/vmalloc.h> 35 36 #include <scsi/scsi.h> 37 #include <scsi/scsi_device.h> 38 #include <scsi/scsi_host.h> 39 #include <scsi/scsi_transport_fc.h> 40 #include <scsi/fc/fc_fs.h> 41 42 #include "lpfc_hw4.h" 43 #include "lpfc_hw.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc_nl.h" 47 #include "lpfc_disc.h" 48 #include "lpfc.h" 49 #include "lpfc_scsi.h" 50 #include "lpfc_nvme.h" 51 #include "lpfc_logmsg.h" 52 #include "lpfc_crtn.h" 53 #include "lpfc_vport.h" 54 #include "lpfc_version.h" 55 #include "lpfc_compat.h" 56 #include "lpfc_debugfs.h" 57 #include "lpfc_bsg.h" 58 59 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 60 /* 61 * debugfs interface 62 * 63 * To access this interface the user should: 64 * # mount -t debugfs none /sys/kernel/debug 65 * 66 * The lpfc debugfs directory hierarchy is: 67 * /sys/kernel/debug/lpfc/fnX/vportY 68 * where X is the lpfc hba function unique_id 69 * where Y is the vport VPI on that hba 70 * 71 * Debugging services available per vport: 72 * discovery_trace 73 * This is an ACSII readable file that contains a trace of the last 74 * lpfc_debugfs_max_disc_trc events that happened on a specific vport. 75 * See lpfc_debugfs.h for different categories of discovery events. 76 * To enable the discovery trace, the following module parameters must be set: 77 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 78 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for 79 * EACH vport. X MUST also be a power of 2. 80 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in 81 * lpfc_debugfs.h . 82 * 83 * slow_ring_trace 84 * This is an ACSII readable file that contains a trace of the last 85 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. 86 * To enable the slow ring trace, the following module parameters must be set: 87 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 88 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for 89 * the HBA. X MUST also be a power of 2. 90 */ 91 static int lpfc_debugfs_enable = 1; 92 module_param(lpfc_debugfs_enable, int, S_IRUGO); 93 MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); 94 95 /* This MUST be a power of 2 */ 96 static int lpfc_debugfs_max_disc_trc; 97 module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); 98 MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, 99 "Set debugfs discovery trace depth"); 100 101 /* This MUST be a power of 2 */ 102 static int lpfc_debugfs_max_slow_ring_trc; 103 module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); 104 MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, 105 "Set debugfs slow ring trace depth"); 106 107 /* This MUST be a power of 2 */ 108 static int lpfc_debugfs_max_nvmeio_trc; 109 module_param(lpfc_debugfs_max_nvmeio_trc, int, 0444); 110 MODULE_PARM_DESC(lpfc_debugfs_max_nvmeio_trc, 111 "Set debugfs NVME IO trace depth"); 112 113 static int lpfc_debugfs_mask_disc_trc; 114 module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); 115 MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, 116 "Set debugfs discovery trace mask"); 117 118 #include <linux/debugfs.h> 119 120 static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); 121 static unsigned long lpfc_debugfs_start_time = 0L; 122 123 /* iDiag */ 124 static struct lpfc_idiag idiag; 125 126 /** 127 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer 128 * @vport: The vport to gather the log info from. 129 * @buf: The buffer to dump log into. 130 * @size: The maximum amount of data to process. 131 * 132 * Description: 133 * This routine gathers the lpfc discovery debugfs data from the @vport and 134 * dumps it to @buf up to @size number of bytes. It will start at the next entry 135 * in the log and process the log until the end of the buffer. Then it will 136 * gather from the beginning of the log and process until the current entry. 137 * 138 * Notes: 139 * Discovery logging will be disabled while while this routine dumps the log. 140 * 141 * Return Value: 142 * This routine returns the amount of bytes that were dumped into @buf and will 143 * not exceed @size. 144 **/ 145 static int 146 lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) 147 { 148 int i, index, len, enable; 149 uint32_t ms; 150 struct lpfc_debugfs_trc *dtp; 151 char *buffer; 152 153 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 154 if (!buffer) 155 return 0; 156 157 enable = lpfc_debugfs_enable; 158 lpfc_debugfs_enable = 0; 159 160 len = 0; 161 index = (atomic_read(&vport->disc_trc_cnt) + 1) & 162 (lpfc_debugfs_max_disc_trc - 1); 163 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { 164 dtp = vport->disc_trc + i; 165 if (!dtp->fmt) 166 continue; 167 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 168 snprintf(buffer, 169 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 170 dtp->seq_cnt, ms, dtp->fmt); 171 len += scnprintf(buf+len, size-len, buffer, 172 dtp->data1, dtp->data2, dtp->data3); 173 } 174 for (i = 0; i < index; i++) { 175 dtp = vport->disc_trc + i; 176 if (!dtp->fmt) 177 continue; 178 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 179 snprintf(buffer, 180 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 181 dtp->seq_cnt, ms, dtp->fmt); 182 len += scnprintf(buf+len, size-len, buffer, 183 dtp->data1, dtp->data2, dtp->data3); 184 } 185 186 lpfc_debugfs_enable = enable; 187 kfree(buffer); 188 189 return len; 190 } 191 192 /** 193 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer 194 * @phba: The HBA to gather the log info from. 195 * @buf: The buffer to dump log into. 196 * @size: The maximum amount of data to process. 197 * 198 * Description: 199 * This routine gathers the lpfc slow ring debugfs data from the @phba and 200 * dumps it to @buf up to @size number of bytes. It will start at the next entry 201 * in the log and process the log until the end of the buffer. Then it will 202 * gather from the beginning of the log and process until the current entry. 203 * 204 * Notes: 205 * Slow ring logging will be disabled while while this routine dumps the log. 206 * 207 * Return Value: 208 * This routine returns the amount of bytes that were dumped into @buf and will 209 * not exceed @size. 210 **/ 211 static int 212 lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) 213 { 214 int i, index, len, enable; 215 uint32_t ms; 216 struct lpfc_debugfs_trc *dtp; 217 char *buffer; 218 219 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 220 if (!buffer) 221 return 0; 222 223 enable = lpfc_debugfs_enable; 224 lpfc_debugfs_enable = 0; 225 226 len = 0; 227 index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & 228 (lpfc_debugfs_max_slow_ring_trc - 1); 229 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { 230 dtp = phba->slow_ring_trc + i; 231 if (!dtp->fmt) 232 continue; 233 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 234 snprintf(buffer, 235 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 236 dtp->seq_cnt, ms, dtp->fmt); 237 len += scnprintf(buf+len, size-len, buffer, 238 dtp->data1, dtp->data2, dtp->data3); 239 } 240 for (i = 0; i < index; i++) { 241 dtp = phba->slow_ring_trc + i; 242 if (!dtp->fmt) 243 continue; 244 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 245 snprintf(buffer, 246 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 247 dtp->seq_cnt, ms, dtp->fmt); 248 len += scnprintf(buf+len, size-len, buffer, 249 dtp->data1, dtp->data2, dtp->data3); 250 } 251 252 lpfc_debugfs_enable = enable; 253 kfree(buffer); 254 255 return len; 256 } 257 258 static int lpfc_debugfs_last_hbq = -1; 259 260 /** 261 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer 262 * @phba: The HBA to gather host buffer info from. 263 * @buf: The buffer to dump log into. 264 * @size: The maximum amount of data to process. 265 * 266 * Description: 267 * This routine dumps the host buffer queue info from the @phba to @buf up to 268 * @size number of bytes. A header that describes the current hbq state will be 269 * dumped to @buf first and then info on each hbq entry will be dumped to @buf 270 * until @size bytes have been dumped or all the hbq info has been dumped. 271 * 272 * Notes: 273 * This routine will rotate through each configured HBQ each time called. 274 * 275 * Return Value: 276 * This routine returns the amount of bytes that were dumped into @buf and will 277 * not exceed @size. 278 **/ 279 static int 280 lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) 281 { 282 int len = 0; 283 int i, j, found, posted, low; 284 uint32_t phys, raw_index, getidx; 285 struct lpfc_hbq_init *hip; 286 struct hbq_s *hbqs; 287 struct lpfc_hbq_entry *hbqe; 288 struct lpfc_dmabuf *d_buf; 289 struct hbq_dmabuf *hbq_buf; 290 291 if (phba->sli_rev != 3) 292 return 0; 293 294 spin_lock_irq(&phba->hbalock); 295 296 /* toggle between multiple hbqs, if any */ 297 i = lpfc_sli_hbq_count(); 298 if (i > 1) { 299 lpfc_debugfs_last_hbq++; 300 if (lpfc_debugfs_last_hbq >= i) 301 lpfc_debugfs_last_hbq = 0; 302 } 303 else 304 lpfc_debugfs_last_hbq = 0; 305 306 i = lpfc_debugfs_last_hbq; 307 308 len += scnprintf(buf+len, size-len, "HBQ %d Info\n", i); 309 310 hbqs = &phba->hbqs[i]; 311 posted = 0; 312 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) 313 posted++; 314 315 hip = lpfc_hbq_defs[i]; 316 len += scnprintf(buf+len, size-len, 317 "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", 318 hip->hbq_index, hip->profile, hip->rn, 319 hip->buffer_count, hip->init_count, hip->add_count, posted); 320 321 raw_index = phba->hbq_get[i]; 322 getidx = le32_to_cpu(raw_index); 323 len += scnprintf(buf+len, size-len, 324 "entries:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", 325 hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, 326 hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); 327 328 hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; 329 for (j=0; j<hbqs->entry_count; j++) { 330 len += scnprintf(buf+len, size-len, 331 "%03d: %08x %04x %05x ", j, 332 le32_to_cpu(hbqe->bde.addrLow), 333 le32_to_cpu(hbqe->bde.tus.w), 334 le32_to_cpu(hbqe->buffer_tag)); 335 i = 0; 336 found = 0; 337 338 /* First calculate if slot has an associated posted buffer */ 339 low = hbqs->hbqPutIdx - posted; 340 if (low >= 0) { 341 if ((j >= hbqs->hbqPutIdx) || (j < low)) { 342 len += scnprintf(buf + len, size - len, 343 "Unused\n"); 344 goto skipit; 345 } 346 } 347 else { 348 if ((j >= hbqs->hbqPutIdx) && 349 (j < (hbqs->entry_count+low))) { 350 len += scnprintf(buf + len, size - len, 351 "Unused\n"); 352 goto skipit; 353 } 354 } 355 356 /* Get the Buffer info for the posted buffer */ 357 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { 358 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); 359 phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); 360 if (phys == le32_to_cpu(hbqe->bde.addrLow)) { 361 len += scnprintf(buf+len, size-len, 362 "Buf%d: x%px %06x\n", i, 363 hbq_buf->dbuf.virt, hbq_buf->tag); 364 found = 1; 365 break; 366 } 367 i++; 368 } 369 if (!found) { 370 len += scnprintf(buf+len, size-len, "No DMAinfo?\n"); 371 } 372 skipit: 373 hbqe++; 374 if (len > LPFC_HBQINFO_SIZE - 54) 375 break; 376 } 377 spin_unlock_irq(&phba->hbalock); 378 return len; 379 } 380 381 static int lpfc_debugfs_last_xripool; 382 383 /** 384 * lpfc_debugfs_common_xri_data - Dump Hardware Queue info to a buffer 385 * @phba: The HBA to gather host buffer info from. 386 * @buf: The buffer to dump log into. 387 * @size: The maximum amount of data to process. 388 * 389 * Description: 390 * This routine dumps the Hardware Queue info from the @phba to @buf up to 391 * @size number of bytes. A header that describes the current hdwq state will be 392 * dumped to @buf first and then info on each hdwq entry will be dumped to @buf 393 * until @size bytes have been dumped or all the hdwq info has been dumped. 394 * 395 * Notes: 396 * This routine will rotate through each configured Hardware Queue each 397 * time called. 398 * 399 * Return Value: 400 * This routine returns the amount of bytes that were dumped into @buf and will 401 * not exceed @size. 402 **/ 403 static int 404 lpfc_debugfs_commonxripools_data(struct lpfc_hba *phba, char *buf, int size) 405 { 406 struct lpfc_sli4_hdw_queue *qp; 407 int len = 0; 408 int i, out; 409 unsigned long iflag; 410 411 for (i = 0; i < phba->cfg_hdw_queue; i++) { 412 if (len > (LPFC_DUMP_MULTIXRIPOOL_SIZE - 80)) 413 break; 414 qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_xripool]; 415 416 len += scnprintf(buf + len, size - len, "HdwQ %d Info ", i); 417 spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag); 418 spin_lock(&qp->io_buf_list_get_lock); 419 spin_lock(&qp->io_buf_list_put_lock); 420 out = qp->total_io_bufs - (qp->get_io_bufs + qp->put_io_bufs + 421 qp->abts_scsi_io_bufs + qp->abts_nvme_io_bufs); 422 len += scnprintf(buf + len, size - len, 423 "tot:%d get:%d put:%d mt:%d " 424 "ABTS scsi:%d nvme:%d Out:%d\n", 425 qp->total_io_bufs, qp->get_io_bufs, qp->put_io_bufs, 426 qp->empty_io_bufs, qp->abts_scsi_io_bufs, 427 qp->abts_nvme_io_bufs, out); 428 spin_unlock(&qp->io_buf_list_put_lock); 429 spin_unlock(&qp->io_buf_list_get_lock); 430 spin_unlock_irqrestore(&qp->abts_io_buf_list_lock, iflag); 431 432 lpfc_debugfs_last_xripool++; 433 if (lpfc_debugfs_last_xripool >= phba->cfg_hdw_queue) 434 lpfc_debugfs_last_xripool = 0; 435 } 436 437 return len; 438 } 439 440 /** 441 * lpfc_debugfs_multixripools_data - Display multi-XRI pools information 442 * @phba: The HBA to gather host buffer info from. 443 * @buf: The buffer to dump log into. 444 * @size: The maximum amount of data to process. 445 * 446 * Description: 447 * This routine displays current multi-XRI pools information including XRI 448 * count in public, private and txcmplq. It also displays current high and 449 * low watermark. 450 * 451 * Return Value: 452 * This routine returns the amount of bytes that were dumped into @buf and will 453 * not exceed @size. 454 **/ 455 static int 456 lpfc_debugfs_multixripools_data(struct lpfc_hba *phba, char *buf, int size) 457 { 458 u32 i; 459 u32 hwq_count; 460 struct lpfc_sli4_hdw_queue *qp; 461 struct lpfc_multixri_pool *multixri_pool; 462 struct lpfc_pvt_pool *pvt_pool; 463 struct lpfc_pbl_pool *pbl_pool; 464 u32 txcmplq_cnt; 465 char tmp[LPFC_DEBUG_OUT_LINE_SZ] = {0}; 466 467 if (phba->sli_rev != LPFC_SLI_REV4) 468 return 0; 469 470 if (!phba->sli4_hba.hdwq) 471 return 0; 472 473 if (!phba->cfg_xri_rebalancing) { 474 i = lpfc_debugfs_commonxripools_data(phba, buf, size); 475 return i; 476 } 477 478 /* 479 * Pbl: Current number of free XRIs in public pool 480 * Pvt: Current number of free XRIs in private pool 481 * Busy: Current number of outstanding XRIs 482 * HWM: Current high watermark 483 * pvt_empty: Incremented by 1 when IO submission fails (no xri) 484 * pbl_empty: Incremented by 1 when all pbl_pool are empty during 485 * IO submission 486 */ 487 scnprintf(tmp, sizeof(tmp), 488 "HWQ: Pbl Pvt Busy HWM | pvt_empty pbl_empty "); 489 if (strlcat(buf, tmp, size) >= size) 490 return strnlen(buf, size); 491 492 #ifdef LPFC_MXP_STAT 493 /* 494 * MAXH: Max high watermark seen so far 495 * above_lmt: Incremented by 1 if xri_owned > xri_limit during 496 * IO submission 497 * below_lmt: Incremented by 1 if xri_owned <= xri_limit during 498 * IO submission 499 * locPbl_hit: Incremented by 1 if successfully get a batch of XRI from 500 * local pbl_pool 501 * othPbl_hit: Incremented by 1 if successfully get a batch of XRI from 502 * other pbl_pool 503 */ 504 scnprintf(tmp, sizeof(tmp), 505 "MAXH above_lmt below_lmt locPbl_hit othPbl_hit"); 506 if (strlcat(buf, tmp, size) >= size) 507 return strnlen(buf, size); 508 509 /* 510 * sPbl: snapshot of Pbl 15 sec after stat gets cleared 511 * sPvt: snapshot of Pvt 15 sec after stat gets cleared 512 * sBusy: snapshot of Busy 15 sec after stat gets cleared 513 */ 514 scnprintf(tmp, sizeof(tmp), 515 " | sPbl sPvt sBusy"); 516 if (strlcat(buf, tmp, size) >= size) 517 return strnlen(buf, size); 518 #endif 519 520 scnprintf(tmp, sizeof(tmp), "\n"); 521 if (strlcat(buf, tmp, size) >= size) 522 return strnlen(buf, size); 523 524 hwq_count = phba->cfg_hdw_queue; 525 for (i = 0; i < hwq_count; i++) { 526 qp = &phba->sli4_hba.hdwq[i]; 527 multixri_pool = qp->p_multixri_pool; 528 if (!multixri_pool) 529 continue; 530 pbl_pool = &multixri_pool->pbl_pool; 531 pvt_pool = &multixri_pool->pvt_pool; 532 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt; 533 534 scnprintf(tmp, sizeof(tmp), 535 "%03d: %4d %4d %4d %4d | %10d %10d ", 536 i, pbl_pool->count, pvt_pool->count, 537 txcmplq_cnt, pvt_pool->high_watermark, 538 qp->empty_io_bufs, multixri_pool->pbl_empty_count); 539 if (strlcat(buf, tmp, size) >= size) 540 break; 541 542 #ifdef LPFC_MXP_STAT 543 scnprintf(tmp, sizeof(tmp), 544 "%4d %10d %10d %10d %10d", 545 multixri_pool->stat_max_hwm, 546 multixri_pool->above_limit_count, 547 multixri_pool->below_limit_count, 548 multixri_pool->local_pbl_hit_count, 549 multixri_pool->other_pbl_hit_count); 550 if (strlcat(buf, tmp, size) >= size) 551 break; 552 553 scnprintf(tmp, sizeof(tmp), 554 " | %4d %4d %5d", 555 multixri_pool->stat_pbl_count, 556 multixri_pool->stat_pvt_count, 557 multixri_pool->stat_busy_count); 558 if (strlcat(buf, tmp, size) >= size) 559 break; 560 #endif 561 562 scnprintf(tmp, sizeof(tmp), "\n"); 563 if (strlcat(buf, tmp, size) >= size) 564 break; 565 } 566 return strnlen(buf, size); 567 } 568 569 570 #ifdef LPFC_HDWQ_LOCK_STAT 571 static int lpfc_debugfs_last_lock; 572 573 /** 574 * lpfc_debugfs_lockstat_data - Dump Hardware Queue info to a buffer 575 * @phba: The HBA to gather host buffer info from. 576 * @buf: The buffer to dump log into. 577 * @size: The maximum amount of data to process. 578 * 579 * Description: 580 * This routine dumps the Hardware Queue info from the @phba to @buf up to 581 * @size number of bytes. A header that describes the current hdwq state will be 582 * dumped to @buf first and then info on each hdwq entry will be dumped to @buf 583 * until @size bytes have been dumped or all the hdwq info has been dumped. 584 * 585 * Notes: 586 * This routine will rotate through each configured Hardware Queue each 587 * time called. 588 * 589 * Return Value: 590 * This routine returns the amount of bytes that were dumped into @buf and will 591 * not exceed @size. 592 **/ 593 static int 594 lpfc_debugfs_lockstat_data(struct lpfc_hba *phba, char *buf, int size) 595 { 596 struct lpfc_sli4_hdw_queue *qp; 597 int len = 0; 598 int i; 599 600 if (phba->sli_rev != LPFC_SLI_REV4) 601 return 0; 602 603 if (!phba->sli4_hba.hdwq) 604 return 0; 605 606 for (i = 0; i < phba->cfg_hdw_queue; i++) { 607 if (len > (LPFC_HDWQINFO_SIZE - 100)) 608 break; 609 qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_lock]; 610 611 len += scnprintf(buf + len, size - len, "HdwQ %03d Lock ", i); 612 if (phba->cfg_xri_rebalancing) { 613 len += scnprintf(buf + len, size - len, 614 "get_pvt:%d mv_pvt:%d " 615 "mv2pub:%d mv2pvt:%d " 616 "put_pvt:%d put_pub:%d wq:%d\n", 617 qp->lock_conflict.alloc_pvt_pool, 618 qp->lock_conflict.mv_from_pvt_pool, 619 qp->lock_conflict.mv_to_pub_pool, 620 qp->lock_conflict.mv_to_pvt_pool, 621 qp->lock_conflict.free_pvt_pool, 622 qp->lock_conflict.free_pub_pool, 623 qp->lock_conflict.wq_access); 624 } else { 625 len += scnprintf(buf + len, size - len, 626 "get:%d put:%d free:%d wq:%d\n", 627 qp->lock_conflict.alloc_xri_get, 628 qp->lock_conflict.alloc_xri_put, 629 qp->lock_conflict.free_xri, 630 qp->lock_conflict.wq_access); 631 } 632 633 lpfc_debugfs_last_lock++; 634 if (lpfc_debugfs_last_lock >= phba->cfg_hdw_queue) 635 lpfc_debugfs_last_lock = 0; 636 } 637 638 return len; 639 } 640 #endif 641 642 static int lpfc_debugfs_last_hba_slim_off; 643 644 /** 645 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer 646 * @phba: The HBA to gather SLIM info from. 647 * @buf: The buffer to dump log into. 648 * @size: The maximum amount of data to process. 649 * 650 * Description: 651 * This routine dumps the current contents of HBA SLIM for the HBA associated 652 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. 653 * 654 * Notes: 655 * This routine will only dump up to 1024 bytes of data each time called and 656 * should be called multiple times to dump the entire HBA SLIM. 657 * 658 * Return Value: 659 * This routine returns the amount of bytes that were dumped into @buf and will 660 * not exceed @size. 661 **/ 662 static int 663 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) 664 { 665 int len = 0; 666 int i, off; 667 uint32_t *ptr; 668 char *buffer; 669 670 buffer = kmalloc(1024, GFP_KERNEL); 671 if (!buffer) 672 return 0; 673 674 off = 0; 675 spin_lock_irq(&phba->hbalock); 676 677 len += scnprintf(buf+len, size-len, "HBA SLIM\n"); 678 lpfc_memcpy_from_slim(buffer, 679 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); 680 681 ptr = (uint32_t *)&buffer[0]; 682 off = lpfc_debugfs_last_hba_slim_off; 683 684 /* Set it up for the next time */ 685 lpfc_debugfs_last_hba_slim_off += 1024; 686 if (lpfc_debugfs_last_hba_slim_off >= 4096) 687 lpfc_debugfs_last_hba_slim_off = 0; 688 689 i = 1024; 690 while (i > 0) { 691 len += scnprintf(buf+len, size-len, 692 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 693 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 694 *(ptr+5), *(ptr+6), *(ptr+7)); 695 ptr += 8; 696 i -= (8 * sizeof(uint32_t)); 697 off += (8 * sizeof(uint32_t)); 698 } 699 700 spin_unlock_irq(&phba->hbalock); 701 kfree(buffer); 702 703 return len; 704 } 705 706 /** 707 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer 708 * @phba: The HBA to gather Host SLIM info from. 709 * @buf: The buffer to dump log into. 710 * @size: The maximum amount of data to process. 711 * 712 * Description: 713 * This routine dumps the current contents of host SLIM for the host associated 714 * with @phba to @buf up to @size bytes of data. The dump will contain the 715 * Mailbox, PCB, Rings, and Registers that are located in host memory. 716 * 717 * Return Value: 718 * This routine returns the amount of bytes that were dumped into @buf and will 719 * not exceed @size. 720 **/ 721 static int 722 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) 723 { 724 int len = 0; 725 int i, off; 726 uint32_t word0, word1, word2, word3; 727 uint32_t *ptr; 728 struct lpfc_pgp *pgpp; 729 struct lpfc_sli *psli = &phba->sli; 730 struct lpfc_sli_ring *pring; 731 732 off = 0; 733 spin_lock_irq(&phba->hbalock); 734 735 len += scnprintf(buf+len, size-len, "SLIM Mailbox\n"); 736 ptr = (uint32_t *)phba->slim2p.virt; 737 i = sizeof(MAILBOX_t); 738 while (i > 0) { 739 len += scnprintf(buf+len, size-len, 740 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 741 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 742 *(ptr+5), *(ptr+6), *(ptr+7)); 743 ptr += 8; 744 i -= (8 * sizeof(uint32_t)); 745 off += (8 * sizeof(uint32_t)); 746 } 747 748 len += scnprintf(buf+len, size-len, "SLIM PCB\n"); 749 ptr = (uint32_t *)phba->pcb; 750 i = sizeof(PCB_t); 751 while (i > 0) { 752 len += scnprintf(buf+len, size-len, 753 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 754 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 755 *(ptr+5), *(ptr+6), *(ptr+7)); 756 ptr += 8; 757 i -= (8 * sizeof(uint32_t)); 758 off += (8 * sizeof(uint32_t)); 759 } 760 761 if (phba->sli_rev <= LPFC_SLI_REV3) { 762 for (i = 0; i < 4; i++) { 763 pgpp = &phba->port_gp[i]; 764 pring = &psli->sli3_ring[i]; 765 len += scnprintf(buf+len, size-len, 766 "Ring %d: CMD GetInx:%d " 767 "(Max:%d Next:%d " 768 "Local:%d flg:x%x) " 769 "RSP PutInx:%d Max:%d\n", 770 i, pgpp->cmdGetInx, 771 pring->sli.sli3.numCiocb, 772 pring->sli.sli3.next_cmdidx, 773 pring->sli.sli3.local_getidx, 774 pring->flag, pgpp->rspPutInx, 775 pring->sli.sli3.numRiocb); 776 } 777 778 word0 = readl(phba->HAregaddr); 779 word1 = readl(phba->CAregaddr); 780 word2 = readl(phba->HSregaddr); 781 word3 = readl(phba->HCregaddr); 782 len += scnprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " 783 "HC:%08x\n", word0, word1, word2, word3); 784 } 785 spin_unlock_irq(&phba->hbalock); 786 return len; 787 } 788 789 /** 790 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer 791 * @vport: The vport to gather target node info from. 792 * @buf: The buffer to dump log into. 793 * @size: The maximum amount of data to process. 794 * 795 * Description: 796 * This routine dumps the current target node list associated with @vport to 797 * @buf up to @size bytes of data. Each node entry in the dump will contain a 798 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. 799 * 800 * Return Value: 801 * This routine returns the amount of bytes that were dumped into @buf and will 802 * not exceed @size. 803 **/ 804 static int 805 lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) 806 { 807 int len = 0; 808 int i, iocnt, outio, cnt; 809 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 810 struct lpfc_hba *phba = vport->phba; 811 struct lpfc_nodelist *ndlp; 812 unsigned char *statep; 813 struct nvme_fc_local_port *localport; 814 struct nvme_fc_remote_port *nrport = NULL; 815 struct lpfc_nvme_rport *rport; 816 817 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); 818 outio = 0; 819 820 len += scnprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n"); 821 spin_lock_irq(shost->host_lock); 822 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 823 iocnt = 0; 824 if (!cnt) { 825 len += scnprintf(buf+len, size-len, 826 "Missing Nodelist Entries\n"); 827 break; 828 } 829 cnt--; 830 switch (ndlp->nlp_state) { 831 case NLP_STE_UNUSED_NODE: 832 statep = "UNUSED"; 833 break; 834 case NLP_STE_PLOGI_ISSUE: 835 statep = "PLOGI "; 836 break; 837 case NLP_STE_ADISC_ISSUE: 838 statep = "ADISC "; 839 break; 840 case NLP_STE_REG_LOGIN_ISSUE: 841 statep = "REGLOG"; 842 break; 843 case NLP_STE_PRLI_ISSUE: 844 statep = "PRLI "; 845 break; 846 case NLP_STE_LOGO_ISSUE: 847 statep = "LOGO "; 848 break; 849 case NLP_STE_UNMAPPED_NODE: 850 statep = "UNMAP "; 851 iocnt = 1; 852 break; 853 case NLP_STE_MAPPED_NODE: 854 statep = "MAPPED"; 855 iocnt = 1; 856 break; 857 case NLP_STE_NPR_NODE: 858 statep = "NPR "; 859 break; 860 default: 861 statep = "UNKNOWN"; 862 } 863 len += scnprintf(buf+len, size-len, "%s DID:x%06x ", 864 statep, ndlp->nlp_DID); 865 len += scnprintf(buf+len, size-len, 866 "WWPN x%llx ", 867 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 868 len += scnprintf(buf+len, size-len, 869 "WWNN x%llx ", 870 wwn_to_u64(ndlp->nlp_nodename.u.wwn)); 871 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) 872 len += scnprintf(buf+len, size-len, "RPI:%03d ", 873 ndlp->nlp_rpi); 874 else 875 len += scnprintf(buf+len, size-len, "RPI:none "); 876 len += scnprintf(buf+len, size-len, "flag:x%08x ", 877 ndlp->nlp_flag); 878 if (!ndlp->nlp_type) 879 len += scnprintf(buf+len, size-len, "UNKNOWN_TYPE "); 880 if (ndlp->nlp_type & NLP_FC_NODE) 881 len += scnprintf(buf+len, size-len, "FC_NODE "); 882 if (ndlp->nlp_type & NLP_FABRIC) { 883 len += scnprintf(buf+len, size-len, "FABRIC "); 884 iocnt = 0; 885 } 886 if (ndlp->nlp_type & NLP_FCP_TARGET) 887 len += scnprintf(buf+len, size-len, "FCP_TGT sid:%d ", 888 ndlp->nlp_sid); 889 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 890 len += scnprintf(buf+len, size-len, "FCP_INITIATOR "); 891 if (ndlp->nlp_type & NLP_NVME_TARGET) 892 len += scnprintf(buf + len, 893 size - len, "NVME_TGT sid:%d ", 894 NLP_NO_SID); 895 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 896 len += scnprintf(buf + len, 897 size - len, "NVME_INITIATOR "); 898 len += scnprintf(buf+len, size-len, "usgmap:%x ", 899 ndlp->nlp_usg_map); 900 len += scnprintf(buf+len, size-len, "refcnt:%x", 901 kref_read(&ndlp->kref)); 902 if (iocnt) { 903 i = atomic_read(&ndlp->cmd_pending); 904 len += scnprintf(buf + len, size - len, 905 " OutIO:x%x Qdepth x%x", 906 i, ndlp->cmd_qdepth); 907 outio += i; 908 } 909 len += scnprintf(buf + len, size - len, "defer:%x ", 910 ndlp->nlp_defer_did); 911 len += scnprintf(buf+len, size-len, "\n"); 912 } 913 spin_unlock_irq(shost->host_lock); 914 915 len += scnprintf(buf + len, size - len, 916 "\nOutstanding IO x%x\n", outio); 917 918 if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) { 919 len += scnprintf(buf + len, size - len, 920 "\nNVME Targetport Entry ...\n"); 921 922 /* Port state is only one of two values for now. */ 923 if (phba->targetport->port_id) 924 statep = "REGISTERED"; 925 else 926 statep = "INIT"; 927 len += scnprintf(buf + len, size - len, 928 "TGT WWNN x%llx WWPN x%llx State %s\n", 929 wwn_to_u64(vport->fc_nodename.u.wwn), 930 wwn_to_u64(vport->fc_portname.u.wwn), 931 statep); 932 len += scnprintf(buf + len, size - len, 933 " Targetport DID x%06x\n", 934 phba->targetport->port_id); 935 goto out_exit; 936 } 937 938 len += scnprintf(buf + len, size - len, 939 "\nNVME Lport/Rport Entries ...\n"); 940 941 localport = vport->localport; 942 if (!localport) 943 goto out_exit; 944 945 spin_lock_irq(shost->host_lock); 946 947 /* Port state is only one of two values for now. */ 948 if (localport->port_id) 949 statep = "ONLINE"; 950 else 951 statep = "UNKNOWN "; 952 953 len += scnprintf(buf + len, size - len, 954 "Lport DID x%06x PortState %s\n", 955 localport->port_id, statep); 956 957 len += scnprintf(buf + len, size - len, "\tRport List:\n"); 958 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 959 /* local short-hand pointer. */ 960 spin_lock(&phba->hbalock); 961 rport = lpfc_ndlp_get_nrport(ndlp); 962 if (rport) 963 nrport = rport->remoteport; 964 else 965 nrport = NULL; 966 spin_unlock(&phba->hbalock); 967 if (!nrport) 968 continue; 969 970 /* Port state is only one of two values for now. */ 971 switch (nrport->port_state) { 972 case FC_OBJSTATE_ONLINE: 973 statep = "ONLINE"; 974 break; 975 case FC_OBJSTATE_UNKNOWN: 976 statep = "UNKNOWN "; 977 break; 978 default: 979 statep = "UNSUPPORTED"; 980 break; 981 } 982 983 /* Tab in to show lport ownership. */ 984 len += scnprintf(buf + len, size - len, 985 "\t%s Port ID:x%06x ", 986 statep, nrport->port_id); 987 len += scnprintf(buf + len, size - len, "WWPN x%llx ", 988 nrport->port_name); 989 len += scnprintf(buf + len, size - len, "WWNN x%llx ", 990 nrport->node_name); 991 992 /* An NVME rport can have multiple roles. */ 993 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) 994 len += scnprintf(buf + len, size - len, 995 "INITIATOR "); 996 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) 997 len += scnprintf(buf + len, size - len, 998 "TARGET "); 999 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) 1000 len += scnprintf(buf + len, size - len, 1001 "DISCSRVC "); 1002 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 1003 FC_PORT_ROLE_NVME_TARGET | 1004 FC_PORT_ROLE_NVME_DISCOVERY)) 1005 len += scnprintf(buf + len, size - len, 1006 "UNKNOWN ROLE x%x", 1007 nrport->port_role); 1008 /* Terminate the string. */ 1009 len += scnprintf(buf + len, size - len, "\n"); 1010 } 1011 1012 spin_unlock_irq(shost->host_lock); 1013 out_exit: 1014 return len; 1015 } 1016 1017 /** 1018 * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer 1019 * @vport: The vport to gather target node info from. 1020 * @buf: The buffer to dump log into. 1021 * @size: The maximum amount of data to process. 1022 * 1023 * Description: 1024 * This routine dumps the NVME statistics associated with @vport 1025 * 1026 * Return Value: 1027 * This routine returns the amount of bytes that were dumped into @buf and will 1028 * not exceed @size. 1029 **/ 1030 static int 1031 lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size) 1032 { 1033 struct lpfc_hba *phba = vport->phba; 1034 struct lpfc_nvmet_tgtport *tgtp; 1035 struct lpfc_async_xchg_ctx *ctxp, *next_ctxp; 1036 struct nvme_fc_local_port *localport; 1037 struct lpfc_fc4_ctrl_stat *cstat; 1038 struct lpfc_nvme_lport *lport; 1039 uint64_t data1, data2, data3; 1040 uint64_t tot, totin, totout; 1041 int cnt, i; 1042 int len = 0; 1043 1044 if (phba->nvmet_support) { 1045 if (!phba->targetport) 1046 return len; 1047 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 1048 len += scnprintf(buf + len, size - len, 1049 "\nNVME Targetport Statistics\n"); 1050 1051 len += scnprintf(buf + len, size - len, 1052 "LS: Rcv %08x Drop %08x Abort %08x\n", 1053 atomic_read(&tgtp->rcv_ls_req_in), 1054 atomic_read(&tgtp->rcv_ls_req_drop), 1055 atomic_read(&tgtp->xmt_ls_abort)); 1056 if (atomic_read(&tgtp->rcv_ls_req_in) != 1057 atomic_read(&tgtp->rcv_ls_req_out)) { 1058 len += scnprintf(buf + len, size - len, 1059 "Rcv LS: in %08x != out %08x\n", 1060 atomic_read(&tgtp->rcv_ls_req_in), 1061 atomic_read(&tgtp->rcv_ls_req_out)); 1062 } 1063 1064 len += scnprintf(buf + len, size - len, 1065 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 1066 atomic_read(&tgtp->xmt_ls_rsp), 1067 atomic_read(&tgtp->xmt_ls_drop), 1068 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 1069 1070 len += scnprintf(buf + len, size - len, 1071 "LS: RSP Abort %08x xb %08x Err %08x\n", 1072 atomic_read(&tgtp->xmt_ls_rsp_aborted), 1073 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 1074 atomic_read(&tgtp->xmt_ls_rsp_error)); 1075 1076 len += scnprintf(buf + len, size - len, 1077 "FCP: Rcv %08x Defer %08x Release %08x " 1078 "Drop %08x\n", 1079 atomic_read(&tgtp->rcv_fcp_cmd_in), 1080 atomic_read(&tgtp->rcv_fcp_cmd_defer), 1081 atomic_read(&tgtp->xmt_fcp_release), 1082 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 1083 1084 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 1085 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 1086 len += scnprintf(buf + len, size - len, 1087 "Rcv FCP: in %08x != out %08x\n", 1088 atomic_read(&tgtp->rcv_fcp_cmd_in), 1089 atomic_read(&tgtp->rcv_fcp_cmd_out)); 1090 } 1091 1092 len += scnprintf(buf + len, size - len, 1093 "FCP Rsp: read %08x readrsp %08x " 1094 "write %08x rsp %08x\n", 1095 atomic_read(&tgtp->xmt_fcp_read), 1096 atomic_read(&tgtp->xmt_fcp_read_rsp), 1097 atomic_read(&tgtp->xmt_fcp_write), 1098 atomic_read(&tgtp->xmt_fcp_rsp)); 1099 1100 len += scnprintf(buf + len, size - len, 1101 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 1102 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 1103 atomic_read(&tgtp->xmt_fcp_rsp_error), 1104 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 1105 1106 len += scnprintf(buf + len, size - len, 1107 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 1108 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 1109 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 1110 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 1111 1112 len += scnprintf(buf + len, size - len, 1113 "ABORT: Xmt %08x Cmpl %08x\n", 1114 atomic_read(&tgtp->xmt_fcp_abort), 1115 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 1116 1117 len += scnprintf(buf + len, size - len, 1118 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x", 1119 atomic_read(&tgtp->xmt_abort_sol), 1120 atomic_read(&tgtp->xmt_abort_unsol), 1121 atomic_read(&tgtp->xmt_abort_rsp), 1122 atomic_read(&tgtp->xmt_abort_rsp_error)); 1123 1124 len += scnprintf(buf + len, size - len, "\n"); 1125 1126 cnt = 0; 1127 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1128 list_for_each_entry_safe(ctxp, next_ctxp, 1129 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1130 list) { 1131 cnt++; 1132 } 1133 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1134 if (cnt) { 1135 len += scnprintf(buf + len, size - len, 1136 "ABORT: %d ctx entries\n", cnt); 1137 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1138 list_for_each_entry_safe(ctxp, next_ctxp, 1139 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1140 list) { 1141 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) 1142 break; 1143 len += scnprintf(buf + len, size - len, 1144 "Entry: oxid %x state %x " 1145 "flag %x\n", 1146 ctxp->oxid, ctxp->state, 1147 ctxp->flag); 1148 } 1149 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1150 } 1151 1152 /* Calculate outstanding IOs */ 1153 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 1154 tot += atomic_read(&tgtp->xmt_fcp_release); 1155 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 1156 1157 len += scnprintf(buf + len, size - len, 1158 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 1159 "CTX Outstanding %08llx\n", 1160 phba->sli4_hba.nvmet_xri_cnt, 1161 phba->sli4_hba.nvmet_io_wait_cnt, 1162 phba->sli4_hba.nvmet_io_wait_total, 1163 tot); 1164 } else { 1165 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 1166 return len; 1167 1168 localport = vport->localport; 1169 if (!localport) 1170 return len; 1171 lport = (struct lpfc_nvme_lport *)localport->private; 1172 if (!lport) 1173 return len; 1174 1175 len += scnprintf(buf + len, size - len, 1176 "\nNVME HDWQ Statistics\n"); 1177 1178 len += scnprintf(buf + len, size - len, 1179 "LS: Xmt %016x Cmpl %016x\n", 1180 atomic_read(&lport->fc4NvmeLsRequests), 1181 atomic_read(&lport->fc4NvmeLsCmpls)); 1182 1183 totin = 0; 1184 totout = 0; 1185 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1186 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 1187 tot = cstat->io_cmpls; 1188 totin += tot; 1189 data1 = cstat->input_requests; 1190 data2 = cstat->output_requests; 1191 data3 = cstat->control_requests; 1192 totout += (data1 + data2 + data3); 1193 1194 /* Limit to 32, debugfs display buffer limitation */ 1195 if (i >= 32) 1196 continue; 1197 1198 len += scnprintf(buf + len, PAGE_SIZE - len, 1199 "HDWQ (%d): Rd %016llx Wr %016llx " 1200 "IO %016llx ", 1201 i, data1, data2, data3); 1202 len += scnprintf(buf + len, PAGE_SIZE - len, 1203 "Cmpl %016llx OutIO %016llx\n", 1204 tot, ((data1 + data2 + data3) - tot)); 1205 } 1206 len += scnprintf(buf + len, PAGE_SIZE - len, 1207 "Total FCP Cmpl %016llx Issue %016llx " 1208 "OutIO %016llx\n", 1209 totin, totout, totout - totin); 1210 1211 len += scnprintf(buf + len, size - len, 1212 "LS Xmt Err: Abrt %08x Err %08x " 1213 "Cmpl Err: xb %08x Err %08x\n", 1214 atomic_read(&lport->xmt_ls_abort), 1215 atomic_read(&lport->xmt_ls_err), 1216 atomic_read(&lport->cmpl_ls_xb), 1217 atomic_read(&lport->cmpl_ls_err)); 1218 1219 len += scnprintf(buf + len, size - len, 1220 "FCP Xmt Err: noxri %06x nondlp %06x " 1221 "qdepth %06x wqerr %06x err %06x Abrt %06x\n", 1222 atomic_read(&lport->xmt_fcp_noxri), 1223 atomic_read(&lport->xmt_fcp_bad_ndlp), 1224 atomic_read(&lport->xmt_fcp_qdepth), 1225 atomic_read(&lport->xmt_fcp_wqerr), 1226 atomic_read(&lport->xmt_fcp_err), 1227 atomic_read(&lport->xmt_fcp_abort)); 1228 1229 len += scnprintf(buf + len, size - len, 1230 "FCP Cmpl Err: xb %08x Err %08x\n", 1231 atomic_read(&lport->cmpl_fcp_xb), 1232 atomic_read(&lport->cmpl_fcp_err)); 1233 1234 } 1235 1236 return len; 1237 } 1238 1239 /** 1240 * lpfc_debugfs_scsistat_data - Dump target node list to a buffer 1241 * @vport: The vport to gather target node info from. 1242 * @buf: The buffer to dump log into. 1243 * @size: The maximum amount of data to process. 1244 * 1245 * Description: 1246 * This routine dumps the SCSI statistics associated with @vport 1247 * 1248 * Return Value: 1249 * This routine returns the amount of bytes that were dumped into @buf and will 1250 * not exceed @size. 1251 **/ 1252 static int 1253 lpfc_debugfs_scsistat_data(struct lpfc_vport *vport, char *buf, int size) 1254 { 1255 int len; 1256 struct lpfc_hba *phba = vport->phba; 1257 struct lpfc_fc4_ctrl_stat *cstat; 1258 u64 data1, data2, data3; 1259 u64 tot, totin, totout; 1260 int i; 1261 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 1262 1263 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 1264 (phba->sli_rev != LPFC_SLI_REV4)) 1265 return 0; 1266 1267 scnprintf(buf, size, "SCSI HDWQ Statistics\n"); 1268 1269 totin = 0; 1270 totout = 0; 1271 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1272 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 1273 tot = cstat->io_cmpls; 1274 totin += tot; 1275 data1 = cstat->input_requests; 1276 data2 = cstat->output_requests; 1277 data3 = cstat->control_requests; 1278 totout += (data1 + data2 + data3); 1279 1280 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 1281 "IO %016llx ", i, data1, data2, data3); 1282 if (strlcat(buf, tmp, size) >= size) 1283 goto buffer_done; 1284 1285 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 1286 tot, ((data1 + data2 + data3) - tot)); 1287 if (strlcat(buf, tmp, size) >= size) 1288 goto buffer_done; 1289 } 1290 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 1291 "OutIO %016llx\n", totin, totout, totout - totin); 1292 strlcat(buf, tmp, size); 1293 1294 buffer_done: 1295 len = strnlen(buf, size); 1296 1297 return len; 1298 } 1299 1300 void 1301 lpfc_io_ktime(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) 1302 { 1303 uint64_t seg1, seg2, seg3, seg4; 1304 uint64_t segsum; 1305 1306 if (!lpfc_cmd->ts_last_cmd || 1307 !lpfc_cmd->ts_cmd_start || 1308 !lpfc_cmd->ts_cmd_wqput || 1309 !lpfc_cmd->ts_isr_cmpl || 1310 !lpfc_cmd->ts_data_io) 1311 return; 1312 1313 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_cmd_start) 1314 return; 1315 if (lpfc_cmd->ts_cmd_start < lpfc_cmd->ts_last_cmd) 1316 return; 1317 if (lpfc_cmd->ts_cmd_wqput < lpfc_cmd->ts_cmd_start) 1318 return; 1319 if (lpfc_cmd->ts_isr_cmpl < lpfc_cmd->ts_cmd_wqput) 1320 return; 1321 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_isr_cmpl) 1322 return; 1323 /* 1324 * Segment 1 - Time from Last FCP command cmpl is handed 1325 * off to NVME Layer to start of next command. 1326 * Segment 2 - Time from Driver receives a IO cmd start 1327 * from NVME Layer to WQ put is done on IO cmd. 1328 * Segment 3 - Time from Driver WQ put is done on IO cmd 1329 * to MSI-X ISR for IO cmpl. 1330 * Segment 4 - Time from MSI-X ISR for IO cmpl to when 1331 * cmpl is handled off to the NVME Layer. 1332 */ 1333 seg1 = lpfc_cmd->ts_cmd_start - lpfc_cmd->ts_last_cmd; 1334 if (seg1 > 5000000) /* 5 ms - for sequential IOs only */ 1335 seg1 = 0; 1336 1337 /* Calculate times relative to start of IO */ 1338 seg2 = (lpfc_cmd->ts_cmd_wqput - lpfc_cmd->ts_cmd_start); 1339 segsum = seg2; 1340 seg3 = lpfc_cmd->ts_isr_cmpl - lpfc_cmd->ts_cmd_start; 1341 if (segsum > seg3) 1342 return; 1343 seg3 -= segsum; 1344 segsum += seg3; 1345 1346 seg4 = lpfc_cmd->ts_data_io - lpfc_cmd->ts_cmd_start; 1347 if (segsum > seg4) 1348 return; 1349 seg4 -= segsum; 1350 1351 phba->ktime_data_samples++; 1352 phba->ktime_seg1_total += seg1; 1353 if (seg1 < phba->ktime_seg1_min) 1354 phba->ktime_seg1_min = seg1; 1355 else if (seg1 > phba->ktime_seg1_max) 1356 phba->ktime_seg1_max = seg1; 1357 phba->ktime_seg2_total += seg2; 1358 if (seg2 < phba->ktime_seg2_min) 1359 phba->ktime_seg2_min = seg2; 1360 else if (seg2 > phba->ktime_seg2_max) 1361 phba->ktime_seg2_max = seg2; 1362 phba->ktime_seg3_total += seg3; 1363 if (seg3 < phba->ktime_seg3_min) 1364 phba->ktime_seg3_min = seg3; 1365 else if (seg3 > phba->ktime_seg3_max) 1366 phba->ktime_seg3_max = seg3; 1367 phba->ktime_seg4_total += seg4; 1368 if (seg4 < phba->ktime_seg4_min) 1369 phba->ktime_seg4_min = seg4; 1370 else if (seg4 > phba->ktime_seg4_max) 1371 phba->ktime_seg4_max = seg4; 1372 1373 lpfc_cmd->ts_last_cmd = 0; 1374 lpfc_cmd->ts_cmd_start = 0; 1375 lpfc_cmd->ts_cmd_wqput = 0; 1376 lpfc_cmd->ts_isr_cmpl = 0; 1377 lpfc_cmd->ts_data_io = 0; 1378 } 1379 1380 /** 1381 * lpfc_debugfs_ioktime_data - Dump target node list to a buffer 1382 * @vport: The vport to gather target node info from. 1383 * @buf: The buffer to dump log into. 1384 * @size: The maximum amount of data to process. 1385 * 1386 * Description: 1387 * This routine dumps the NVME statistics associated with @vport 1388 * 1389 * Return Value: 1390 * This routine returns the amount of bytes that were dumped into @buf and will 1391 * not exceed @size. 1392 **/ 1393 static int 1394 lpfc_debugfs_ioktime_data(struct lpfc_vport *vport, char *buf, int size) 1395 { 1396 struct lpfc_hba *phba = vport->phba; 1397 int len = 0; 1398 1399 if (phba->nvmet_support == 0) { 1400 /* Initiator */ 1401 len += scnprintf(buf + len, PAGE_SIZE - len, 1402 "ktime %s: Total Samples: %lld\n", 1403 (phba->ktime_on ? "Enabled" : "Disabled"), 1404 phba->ktime_data_samples); 1405 if (phba->ktime_data_samples == 0) 1406 return len; 1407 1408 len += scnprintf( 1409 buf + len, PAGE_SIZE - len, 1410 "Segment 1: Last Cmd cmpl " 1411 "done -to- Start of next Cmd (in driver)\n"); 1412 len += scnprintf( 1413 buf + len, PAGE_SIZE - len, 1414 "avg:%08lld min:%08lld max %08lld\n", 1415 div_u64(phba->ktime_seg1_total, 1416 phba->ktime_data_samples), 1417 phba->ktime_seg1_min, 1418 phba->ktime_seg1_max); 1419 len += scnprintf( 1420 buf + len, PAGE_SIZE - len, 1421 "Segment 2: Driver start of Cmd " 1422 "-to- Firmware WQ doorbell\n"); 1423 len += scnprintf( 1424 buf + len, PAGE_SIZE - len, 1425 "avg:%08lld min:%08lld max %08lld\n", 1426 div_u64(phba->ktime_seg2_total, 1427 phba->ktime_data_samples), 1428 phba->ktime_seg2_min, 1429 phba->ktime_seg2_max); 1430 len += scnprintf( 1431 buf + len, PAGE_SIZE - len, 1432 "Segment 3: Firmware WQ doorbell -to- " 1433 "MSI-X ISR cmpl\n"); 1434 len += scnprintf( 1435 buf + len, PAGE_SIZE - len, 1436 "avg:%08lld min:%08lld max %08lld\n", 1437 div_u64(phba->ktime_seg3_total, 1438 phba->ktime_data_samples), 1439 phba->ktime_seg3_min, 1440 phba->ktime_seg3_max); 1441 len += scnprintf( 1442 buf + len, PAGE_SIZE - len, 1443 "Segment 4: MSI-X ISR cmpl -to- " 1444 "Cmd cmpl done\n"); 1445 len += scnprintf( 1446 buf + len, PAGE_SIZE - len, 1447 "avg:%08lld min:%08lld max %08lld\n", 1448 div_u64(phba->ktime_seg4_total, 1449 phba->ktime_data_samples), 1450 phba->ktime_seg4_min, 1451 phba->ktime_seg4_max); 1452 len += scnprintf( 1453 buf + len, PAGE_SIZE - len, 1454 "Total IO avg time: %08lld\n", 1455 div_u64(phba->ktime_seg1_total + 1456 phba->ktime_seg2_total + 1457 phba->ktime_seg3_total + 1458 phba->ktime_seg4_total, 1459 phba->ktime_data_samples)); 1460 return len; 1461 } 1462 1463 /* NVME Target */ 1464 len += scnprintf(buf + len, PAGE_SIZE-len, 1465 "ktime %s: Total Samples: %lld %lld\n", 1466 (phba->ktime_on ? "Enabled" : "Disabled"), 1467 phba->ktime_data_samples, 1468 phba->ktime_status_samples); 1469 if (phba->ktime_data_samples == 0) 1470 return len; 1471 1472 len += scnprintf(buf + len, PAGE_SIZE-len, 1473 "Segment 1: MSI-X ISR Rcv cmd -to- " 1474 "cmd pass to NVME Layer\n"); 1475 len += scnprintf(buf + len, PAGE_SIZE-len, 1476 "avg:%08lld min:%08lld max %08lld\n", 1477 div_u64(phba->ktime_seg1_total, 1478 phba->ktime_data_samples), 1479 phba->ktime_seg1_min, 1480 phba->ktime_seg1_max); 1481 len += scnprintf(buf + len, PAGE_SIZE-len, 1482 "Segment 2: cmd pass to NVME Layer- " 1483 "-to- Driver rcv cmd OP (action)\n"); 1484 len += scnprintf(buf + len, PAGE_SIZE-len, 1485 "avg:%08lld min:%08lld max %08lld\n", 1486 div_u64(phba->ktime_seg2_total, 1487 phba->ktime_data_samples), 1488 phba->ktime_seg2_min, 1489 phba->ktime_seg2_max); 1490 len += scnprintf(buf + len, PAGE_SIZE-len, 1491 "Segment 3: Driver rcv cmd OP -to- " 1492 "Firmware WQ doorbell: cmd\n"); 1493 len += scnprintf(buf + len, PAGE_SIZE-len, 1494 "avg:%08lld min:%08lld max %08lld\n", 1495 div_u64(phba->ktime_seg3_total, 1496 phba->ktime_data_samples), 1497 phba->ktime_seg3_min, 1498 phba->ktime_seg3_max); 1499 len += scnprintf(buf + len, PAGE_SIZE-len, 1500 "Segment 4: Firmware WQ doorbell: cmd " 1501 "-to- MSI-X ISR for cmd cmpl\n"); 1502 len += scnprintf(buf + len, PAGE_SIZE-len, 1503 "avg:%08lld min:%08lld max %08lld\n", 1504 div_u64(phba->ktime_seg4_total, 1505 phba->ktime_data_samples), 1506 phba->ktime_seg4_min, 1507 phba->ktime_seg4_max); 1508 len += scnprintf(buf + len, PAGE_SIZE-len, 1509 "Segment 5: MSI-X ISR for cmd cmpl " 1510 "-to- NVME layer passed cmd done\n"); 1511 len += scnprintf(buf + len, PAGE_SIZE-len, 1512 "avg:%08lld min:%08lld max %08lld\n", 1513 div_u64(phba->ktime_seg5_total, 1514 phba->ktime_data_samples), 1515 phba->ktime_seg5_min, 1516 phba->ktime_seg5_max); 1517 1518 if (phba->ktime_status_samples == 0) { 1519 len += scnprintf(buf + len, PAGE_SIZE-len, 1520 "Total: cmd received by MSI-X ISR " 1521 "-to- cmd completed on wire\n"); 1522 len += scnprintf(buf + len, PAGE_SIZE-len, 1523 "avg:%08lld min:%08lld " 1524 "max %08lld\n", 1525 div_u64(phba->ktime_seg10_total, 1526 phba->ktime_data_samples), 1527 phba->ktime_seg10_min, 1528 phba->ktime_seg10_max); 1529 return len; 1530 } 1531 1532 len += scnprintf(buf + len, PAGE_SIZE-len, 1533 "Segment 6: NVME layer passed cmd done " 1534 "-to- Driver rcv rsp status OP\n"); 1535 len += scnprintf(buf + len, PAGE_SIZE-len, 1536 "avg:%08lld min:%08lld max %08lld\n", 1537 div_u64(phba->ktime_seg6_total, 1538 phba->ktime_status_samples), 1539 phba->ktime_seg6_min, 1540 phba->ktime_seg6_max); 1541 len += scnprintf(buf + len, PAGE_SIZE-len, 1542 "Segment 7: Driver rcv rsp status OP " 1543 "-to- Firmware WQ doorbell: status\n"); 1544 len += scnprintf(buf + len, PAGE_SIZE-len, 1545 "avg:%08lld min:%08lld max %08lld\n", 1546 div_u64(phba->ktime_seg7_total, 1547 phba->ktime_status_samples), 1548 phba->ktime_seg7_min, 1549 phba->ktime_seg7_max); 1550 len += scnprintf(buf + len, PAGE_SIZE-len, 1551 "Segment 8: Firmware WQ doorbell: status" 1552 " -to- MSI-X ISR for status cmpl\n"); 1553 len += scnprintf(buf + len, PAGE_SIZE-len, 1554 "avg:%08lld min:%08lld max %08lld\n", 1555 div_u64(phba->ktime_seg8_total, 1556 phba->ktime_status_samples), 1557 phba->ktime_seg8_min, 1558 phba->ktime_seg8_max); 1559 len += scnprintf(buf + len, PAGE_SIZE-len, 1560 "Segment 9: MSI-X ISR for status cmpl " 1561 "-to- NVME layer passed status done\n"); 1562 len += scnprintf(buf + len, PAGE_SIZE-len, 1563 "avg:%08lld min:%08lld max %08lld\n", 1564 div_u64(phba->ktime_seg9_total, 1565 phba->ktime_status_samples), 1566 phba->ktime_seg9_min, 1567 phba->ktime_seg9_max); 1568 len += scnprintf(buf + len, PAGE_SIZE-len, 1569 "Total: cmd received by MSI-X ISR -to- " 1570 "cmd completed on wire\n"); 1571 len += scnprintf(buf + len, PAGE_SIZE-len, 1572 "avg:%08lld min:%08lld max %08lld\n", 1573 div_u64(phba->ktime_seg10_total, 1574 phba->ktime_status_samples), 1575 phba->ktime_seg10_min, 1576 phba->ktime_seg10_max); 1577 return len; 1578 } 1579 1580 /** 1581 * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer 1582 * @phba: The phba to gather target node info from. 1583 * @buf: The buffer to dump log into. 1584 * @size: The maximum amount of data to process. 1585 * 1586 * Description: 1587 * This routine dumps the NVME IO trace associated with @phba 1588 * 1589 * Return Value: 1590 * This routine returns the amount of bytes that were dumped into @buf and will 1591 * not exceed @size. 1592 **/ 1593 static int 1594 lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size) 1595 { 1596 struct lpfc_debugfs_nvmeio_trc *dtp; 1597 int i, state, index, skip; 1598 int len = 0; 1599 1600 state = phba->nvmeio_trc_on; 1601 1602 index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) & 1603 (phba->nvmeio_trc_size - 1); 1604 skip = phba->nvmeio_trc_output_idx; 1605 1606 len += scnprintf(buf + len, size - len, 1607 "%s IO Trace %s: next_idx %d skip %d size %d\n", 1608 (phba->nvmet_support ? "NVME" : "NVMET"), 1609 (state ? "Enabled" : "Disabled"), 1610 index, skip, phba->nvmeio_trc_size); 1611 1612 if (!phba->nvmeio_trc || state) 1613 return len; 1614 1615 /* trace MUST bhe off to continue */ 1616 1617 for (i = index; i < phba->nvmeio_trc_size; i++) { 1618 if (skip) { 1619 skip--; 1620 continue; 1621 } 1622 dtp = phba->nvmeio_trc + i; 1623 phba->nvmeio_trc_output_idx++; 1624 1625 if (!dtp->fmt) 1626 continue; 1627 1628 len += scnprintf(buf + len, size - len, dtp->fmt, 1629 dtp->data1, dtp->data2, dtp->data3); 1630 1631 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1632 phba->nvmeio_trc_output_idx = 0; 1633 len += scnprintf(buf + len, size - len, 1634 "Trace Complete\n"); 1635 goto out; 1636 } 1637 1638 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1639 len += scnprintf(buf + len, size - len, 1640 "Trace Continue (%d of %d)\n", 1641 phba->nvmeio_trc_output_idx, 1642 phba->nvmeio_trc_size); 1643 goto out; 1644 } 1645 } 1646 for (i = 0; i < index; i++) { 1647 if (skip) { 1648 skip--; 1649 continue; 1650 } 1651 dtp = phba->nvmeio_trc + i; 1652 phba->nvmeio_trc_output_idx++; 1653 1654 if (!dtp->fmt) 1655 continue; 1656 1657 len += scnprintf(buf + len, size - len, dtp->fmt, 1658 dtp->data1, dtp->data2, dtp->data3); 1659 1660 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1661 phba->nvmeio_trc_output_idx = 0; 1662 len += scnprintf(buf + len, size - len, 1663 "Trace Complete\n"); 1664 goto out; 1665 } 1666 1667 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1668 len += scnprintf(buf + len, size - len, 1669 "Trace Continue (%d of %d)\n", 1670 phba->nvmeio_trc_output_idx, 1671 phba->nvmeio_trc_size); 1672 goto out; 1673 } 1674 } 1675 1676 len += scnprintf(buf + len, size - len, 1677 "Trace Done\n"); 1678 out: 1679 return len; 1680 } 1681 1682 /** 1683 * lpfc_debugfs_hdwqstat_data - Dump I/O stats to a buffer 1684 * @vport: The vport to gather target node info from. 1685 * @buf: The buffer to dump log into. 1686 * @size: The maximum amount of data to process. 1687 * 1688 * Description: 1689 * This routine dumps the NVME + SCSI statistics associated with @vport 1690 * 1691 * Return Value: 1692 * This routine returns the amount of bytes that were dumped into @buf and will 1693 * not exceed @size. 1694 **/ 1695 static int 1696 lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size) 1697 { 1698 struct lpfc_hba *phba = vport->phba; 1699 struct lpfc_sli4_hdw_queue *qp; 1700 struct lpfc_hdwq_stat *c_stat; 1701 int i, j, len; 1702 uint32_t tot_xmt; 1703 uint32_t tot_rcv; 1704 uint32_t tot_cmpl; 1705 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 1706 1707 scnprintf(tmp, sizeof(tmp), "HDWQ Stats:\n\n"); 1708 if (strlcat(buf, tmp, size) >= size) 1709 goto buffer_done; 1710 1711 scnprintf(tmp, sizeof(tmp), "(NVME Accounting: %s) ", 1712 (phba->hdwqstat_on & 1713 (LPFC_CHECK_NVME_IO | LPFC_CHECK_NVMET_IO) ? 1714 "Enabled" : "Disabled")); 1715 if (strlcat(buf, tmp, size) >= size) 1716 goto buffer_done; 1717 1718 scnprintf(tmp, sizeof(tmp), "(SCSI Accounting: %s) ", 1719 (phba->hdwqstat_on & LPFC_CHECK_SCSI_IO ? 1720 "Enabled" : "Disabled")); 1721 if (strlcat(buf, tmp, size) >= size) 1722 goto buffer_done; 1723 1724 scnprintf(tmp, sizeof(tmp), "\n\n"); 1725 if (strlcat(buf, tmp, size) >= size) 1726 goto buffer_done; 1727 1728 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1729 qp = &phba->sli4_hba.hdwq[i]; 1730 1731 tot_rcv = 0; 1732 tot_xmt = 0; 1733 tot_cmpl = 0; 1734 1735 for_each_present_cpu(j) { 1736 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, j); 1737 1738 /* Only display for this HDWQ */ 1739 if (i != c_stat->hdwq_no) 1740 continue; 1741 1742 /* Only display non-zero counters */ 1743 if (!c_stat->xmt_io && !c_stat->cmpl_io && 1744 !c_stat->rcv_io) 1745 continue; 1746 1747 if (!tot_xmt && !tot_cmpl && !tot_rcv) { 1748 /* Print HDWQ string only the first time */ 1749 scnprintf(tmp, sizeof(tmp), "[HDWQ %d]:\t", i); 1750 if (strlcat(buf, tmp, size) >= size) 1751 goto buffer_done; 1752 } 1753 1754 tot_xmt += c_stat->xmt_io; 1755 tot_cmpl += c_stat->cmpl_io; 1756 if (phba->nvmet_support) 1757 tot_rcv += c_stat->rcv_io; 1758 1759 scnprintf(tmp, sizeof(tmp), "| [CPU %d]: ", j); 1760 if (strlcat(buf, tmp, size) >= size) 1761 goto buffer_done; 1762 1763 if (phba->nvmet_support) { 1764 scnprintf(tmp, sizeof(tmp), 1765 "XMT 0x%x CMPL 0x%x RCV 0x%x |", 1766 c_stat->xmt_io, c_stat->cmpl_io, 1767 c_stat->rcv_io); 1768 if (strlcat(buf, tmp, size) >= size) 1769 goto buffer_done; 1770 } else { 1771 scnprintf(tmp, sizeof(tmp), 1772 "XMT 0x%x CMPL 0x%x |", 1773 c_stat->xmt_io, c_stat->cmpl_io); 1774 if (strlcat(buf, tmp, size) >= size) 1775 goto buffer_done; 1776 } 1777 } 1778 1779 /* Check if nothing to display */ 1780 if (!tot_xmt && !tot_cmpl && !tot_rcv) 1781 continue; 1782 1783 scnprintf(tmp, sizeof(tmp), "\t->\t[HDWQ Total: "); 1784 if (strlcat(buf, tmp, size) >= size) 1785 goto buffer_done; 1786 1787 if (phba->nvmet_support) { 1788 scnprintf(tmp, sizeof(tmp), 1789 "XMT 0x%x CMPL 0x%x RCV 0x%x]\n\n", 1790 tot_xmt, tot_cmpl, tot_rcv); 1791 if (strlcat(buf, tmp, size) >= size) 1792 goto buffer_done; 1793 } else { 1794 scnprintf(tmp, sizeof(tmp), 1795 "XMT 0x%x CMPL 0x%x]\n\n", 1796 tot_xmt, tot_cmpl); 1797 if (strlcat(buf, tmp, size) >= size) 1798 goto buffer_done; 1799 } 1800 } 1801 1802 buffer_done: 1803 len = strnlen(buf, size); 1804 return len; 1805 } 1806 1807 #endif 1808 1809 /** 1810 * lpfc_debugfs_disc_trc - Store discovery trace log 1811 * @vport: The vport to associate this trace string with for retrieval. 1812 * @mask: Log entry classification. 1813 * @fmt: Format string to be displayed when dumping the log. 1814 * @data1: 1st data parameter to be applied to @fmt. 1815 * @data2: 2nd data parameter to be applied to @fmt. 1816 * @data3: 3rd data parameter to be applied to @fmt. 1817 * 1818 * Description: 1819 * This routine is used by the driver code to add a debugfs log entry to the 1820 * discovery trace buffer associated with @vport. Only entries with a @mask that 1821 * match the current debugfs discovery mask will be saved. Entries that do not 1822 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 1823 * printf when displaying the log. 1824 **/ 1825 inline void 1826 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 1827 uint32_t data1, uint32_t data2, uint32_t data3) 1828 { 1829 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1830 struct lpfc_debugfs_trc *dtp; 1831 int index; 1832 1833 if (!(lpfc_debugfs_mask_disc_trc & mask)) 1834 return; 1835 1836 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 1837 !vport || !vport->disc_trc) 1838 return; 1839 1840 index = atomic_inc_return(&vport->disc_trc_cnt) & 1841 (lpfc_debugfs_max_disc_trc - 1); 1842 dtp = vport->disc_trc + index; 1843 dtp->fmt = fmt; 1844 dtp->data1 = data1; 1845 dtp->data2 = data2; 1846 dtp->data3 = data3; 1847 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1848 dtp->jif = jiffies; 1849 #endif 1850 return; 1851 } 1852 1853 /** 1854 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 1855 * @phba: The phba to associate this trace string with for retrieval. 1856 * @fmt: Format string to be displayed when dumping the log. 1857 * @data1: 1st data parameter to be applied to @fmt. 1858 * @data2: 2nd data parameter to be applied to @fmt. 1859 * @data3: 3rd data parameter to be applied to @fmt. 1860 * 1861 * Description: 1862 * This routine is used by the driver code to add a debugfs log entry to the 1863 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 1864 * @data3 are used like printf when displaying the log. 1865 **/ 1866 inline void 1867 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 1868 uint32_t data1, uint32_t data2, uint32_t data3) 1869 { 1870 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1871 struct lpfc_debugfs_trc *dtp; 1872 int index; 1873 1874 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 1875 !phba || !phba->slow_ring_trc) 1876 return; 1877 1878 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 1879 (lpfc_debugfs_max_slow_ring_trc - 1); 1880 dtp = phba->slow_ring_trc + index; 1881 dtp->fmt = fmt; 1882 dtp->data1 = data1; 1883 dtp->data2 = data2; 1884 dtp->data3 = data3; 1885 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1886 dtp->jif = jiffies; 1887 #endif 1888 return; 1889 } 1890 1891 /** 1892 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log 1893 * @phba: The phba to associate this trace string with for retrieval. 1894 * @fmt: Format string to be displayed when dumping the log. 1895 * @data1: 1st data parameter to be applied to @fmt. 1896 * @data2: 2nd data parameter to be applied to @fmt. 1897 * @data3: 3rd data parameter to be applied to @fmt. 1898 * 1899 * Description: 1900 * This routine is used by the driver code to add a debugfs log entry to the 1901 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and 1902 * @data3 are used like printf when displaying the log. 1903 **/ 1904 inline void 1905 lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, 1906 uint16_t data1, uint16_t data2, uint32_t data3) 1907 { 1908 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1909 struct lpfc_debugfs_nvmeio_trc *dtp; 1910 int index; 1911 1912 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) 1913 return; 1914 1915 index = atomic_inc_return(&phba->nvmeio_trc_cnt) & 1916 (phba->nvmeio_trc_size - 1); 1917 dtp = phba->nvmeio_trc + index; 1918 dtp->fmt = fmt; 1919 dtp->data1 = data1; 1920 dtp->data2 = data2; 1921 dtp->data3 = data3; 1922 #endif 1923 } 1924 1925 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1926 /** 1927 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 1928 * @inode: The inode pointer that contains a vport pointer. 1929 * @file: The file pointer to attach the log output. 1930 * 1931 * Description: 1932 * This routine is the entry point for the debugfs open file operation. It gets 1933 * the vport from the i_private field in @inode, allocates the necessary buffer 1934 * for the log, fills the buffer from the in-memory log for this vport, and then 1935 * returns a pointer to that log in the private_data field in @file. 1936 * 1937 * Returns: 1938 * This function returns zero if successful. On error it will return a negative 1939 * error value. 1940 **/ 1941 static int 1942 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 1943 { 1944 struct lpfc_vport *vport = inode->i_private; 1945 struct lpfc_debug *debug; 1946 int size; 1947 int rc = -ENOMEM; 1948 1949 if (!lpfc_debugfs_max_disc_trc) { 1950 rc = -ENOSPC; 1951 goto out; 1952 } 1953 1954 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1955 if (!debug) 1956 goto out; 1957 1958 /* Round to page boundary */ 1959 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1960 size = PAGE_ALIGN(size); 1961 1962 debug->buffer = kmalloc(size, GFP_KERNEL); 1963 if (!debug->buffer) { 1964 kfree(debug); 1965 goto out; 1966 } 1967 1968 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 1969 file->private_data = debug; 1970 1971 rc = 0; 1972 out: 1973 return rc; 1974 } 1975 1976 /** 1977 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 1978 * @inode: The inode pointer that contains a vport pointer. 1979 * @file: The file pointer to attach the log output. 1980 * 1981 * Description: 1982 * This routine is the entry point for the debugfs open file operation. It gets 1983 * the vport from the i_private field in @inode, allocates the necessary buffer 1984 * for the log, fills the buffer from the in-memory log for this vport, and then 1985 * returns a pointer to that log in the private_data field in @file. 1986 * 1987 * Returns: 1988 * This function returns zero if successful. On error it will return a negative 1989 * error value. 1990 **/ 1991 static int 1992 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 1993 { 1994 struct lpfc_hba *phba = inode->i_private; 1995 struct lpfc_debug *debug; 1996 int size; 1997 int rc = -ENOMEM; 1998 1999 if (!lpfc_debugfs_max_slow_ring_trc) { 2000 rc = -ENOSPC; 2001 goto out; 2002 } 2003 2004 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2005 if (!debug) 2006 goto out; 2007 2008 /* Round to page boundary */ 2009 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 2010 size = PAGE_ALIGN(size); 2011 2012 debug->buffer = kmalloc(size, GFP_KERNEL); 2013 if (!debug->buffer) { 2014 kfree(debug); 2015 goto out; 2016 } 2017 2018 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 2019 file->private_data = debug; 2020 2021 rc = 0; 2022 out: 2023 return rc; 2024 } 2025 2026 /** 2027 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 2028 * @inode: The inode pointer that contains a vport pointer. 2029 * @file: The file pointer to attach the log output. 2030 * 2031 * Description: 2032 * This routine is the entry point for the debugfs open file operation. It gets 2033 * the vport from the i_private field in @inode, allocates the necessary buffer 2034 * for the log, fills the buffer from the in-memory log for this vport, and then 2035 * returns a pointer to that log in the private_data field in @file. 2036 * 2037 * Returns: 2038 * This function returns zero if successful. On error it will return a negative 2039 * error value. 2040 **/ 2041 static int 2042 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 2043 { 2044 struct lpfc_hba *phba = inode->i_private; 2045 struct lpfc_debug *debug; 2046 int rc = -ENOMEM; 2047 2048 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2049 if (!debug) 2050 goto out; 2051 2052 /* Round to page boundary */ 2053 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 2054 if (!debug->buffer) { 2055 kfree(debug); 2056 goto out; 2057 } 2058 2059 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 2060 LPFC_HBQINFO_SIZE); 2061 file->private_data = debug; 2062 2063 rc = 0; 2064 out: 2065 return rc; 2066 } 2067 2068 /** 2069 * lpfc_debugfs_multixripools_open - Open the multixripool debugfs buffer 2070 * @inode: The inode pointer that contains a hba pointer. 2071 * @file: The file pointer to attach the log output. 2072 * 2073 * Description: 2074 * This routine is the entry point for the debugfs open file operation. It gets 2075 * the hba from the i_private field in @inode, allocates the necessary buffer 2076 * for the log, fills the buffer from the in-memory log for this hba, and then 2077 * returns a pointer to that log in the private_data field in @file. 2078 * 2079 * Returns: 2080 * This function returns zero if successful. On error it will return a negative 2081 * error value. 2082 **/ 2083 static int 2084 lpfc_debugfs_multixripools_open(struct inode *inode, struct file *file) 2085 { 2086 struct lpfc_hba *phba = inode->i_private; 2087 struct lpfc_debug *debug; 2088 int rc = -ENOMEM; 2089 2090 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2091 if (!debug) 2092 goto out; 2093 2094 /* Round to page boundary */ 2095 debug->buffer = kzalloc(LPFC_DUMP_MULTIXRIPOOL_SIZE, GFP_KERNEL); 2096 if (!debug->buffer) { 2097 kfree(debug); 2098 goto out; 2099 } 2100 2101 debug->len = lpfc_debugfs_multixripools_data( 2102 phba, debug->buffer, LPFC_DUMP_MULTIXRIPOOL_SIZE); 2103 2104 debug->i_private = inode->i_private; 2105 file->private_data = debug; 2106 2107 rc = 0; 2108 out: 2109 return rc; 2110 } 2111 2112 #ifdef LPFC_HDWQ_LOCK_STAT 2113 /** 2114 * lpfc_debugfs_lockstat_open - Open the lockstat debugfs buffer 2115 * @inode: The inode pointer that contains a vport pointer. 2116 * @file: The file pointer to attach the log output. 2117 * 2118 * Description: 2119 * This routine is the entry point for the debugfs open file operation. It gets 2120 * the vport from the i_private field in @inode, allocates the necessary buffer 2121 * for the log, fills the buffer from the in-memory log for this vport, and then 2122 * returns a pointer to that log in the private_data field in @file. 2123 * 2124 * Returns: 2125 * This function returns zero if successful. On error it will return a negative 2126 * error value. 2127 **/ 2128 static int 2129 lpfc_debugfs_lockstat_open(struct inode *inode, struct file *file) 2130 { 2131 struct lpfc_hba *phba = inode->i_private; 2132 struct lpfc_debug *debug; 2133 int rc = -ENOMEM; 2134 2135 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2136 if (!debug) 2137 goto out; 2138 2139 /* Round to page boundary */ 2140 debug->buffer = kmalloc(LPFC_HDWQINFO_SIZE, GFP_KERNEL); 2141 if (!debug->buffer) { 2142 kfree(debug); 2143 goto out; 2144 } 2145 2146 debug->len = lpfc_debugfs_lockstat_data(phba, debug->buffer, 2147 LPFC_HBQINFO_SIZE); 2148 file->private_data = debug; 2149 2150 rc = 0; 2151 out: 2152 return rc; 2153 } 2154 2155 static ssize_t 2156 lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf, 2157 size_t nbytes, loff_t *ppos) 2158 { 2159 struct lpfc_debug *debug = file->private_data; 2160 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2161 struct lpfc_sli4_hdw_queue *qp; 2162 char mybuf[64]; 2163 char *pbuf; 2164 int i; 2165 2166 memset(mybuf, 0, sizeof(mybuf)); 2167 2168 if (copy_from_user(mybuf, buf, nbytes)) 2169 return -EFAULT; 2170 pbuf = &mybuf[0]; 2171 2172 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2173 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2174 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2175 qp = &phba->sli4_hba.hdwq[i]; 2176 qp->lock_conflict.alloc_xri_get = 0; 2177 qp->lock_conflict.alloc_xri_put = 0; 2178 qp->lock_conflict.free_xri = 0; 2179 qp->lock_conflict.wq_access = 0; 2180 qp->lock_conflict.alloc_pvt_pool = 0; 2181 qp->lock_conflict.mv_from_pvt_pool = 0; 2182 qp->lock_conflict.mv_to_pub_pool = 0; 2183 qp->lock_conflict.mv_to_pvt_pool = 0; 2184 qp->lock_conflict.free_pvt_pool = 0; 2185 qp->lock_conflict.free_pub_pool = 0; 2186 qp->lock_conflict.wq_access = 0; 2187 } 2188 } 2189 return nbytes; 2190 } 2191 #endif 2192 2193 static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba, 2194 char *buffer, int size) 2195 { 2196 int copied = 0; 2197 struct lpfc_dmabuf *dmabuf, *next; 2198 2199 memset(buffer, 0, size); 2200 2201 spin_lock_irq(&phba->hbalock); 2202 if (phba->ras_fwlog.state != ACTIVE) { 2203 spin_unlock_irq(&phba->hbalock); 2204 return -EINVAL; 2205 } 2206 spin_unlock_irq(&phba->hbalock); 2207 2208 list_for_each_entry_safe(dmabuf, next, 2209 &phba->ras_fwlog.fwlog_buff_list, list) { 2210 /* Check if copying will go over size and a '\0' char */ 2211 if ((copied + LPFC_RAS_MAX_ENTRY_SIZE) >= (size - 1)) { 2212 memcpy(buffer + copied, dmabuf->virt, 2213 size - copied - 1); 2214 copied += size - copied - 1; 2215 break; 2216 } 2217 memcpy(buffer + copied, dmabuf->virt, LPFC_RAS_MAX_ENTRY_SIZE); 2218 copied += LPFC_RAS_MAX_ENTRY_SIZE; 2219 } 2220 return copied; 2221 } 2222 2223 static int 2224 lpfc_debugfs_ras_log_release(struct inode *inode, struct file *file) 2225 { 2226 struct lpfc_debug *debug = file->private_data; 2227 2228 vfree(debug->buffer); 2229 kfree(debug); 2230 2231 return 0; 2232 } 2233 2234 /** 2235 * lpfc_debugfs_ras_log_open - Open the RAS log debugfs buffer 2236 * @inode: The inode pointer that contains a vport pointer. 2237 * @file: The file pointer to attach the log output. 2238 * 2239 * Description: 2240 * This routine is the entry point for the debugfs open file operation. It gets 2241 * the vport from the i_private field in @inode, allocates the necessary buffer 2242 * for the log, fills the buffer from the in-memory log for this vport, and then 2243 * returns a pointer to that log in the private_data field in @file. 2244 * 2245 * Returns: 2246 * This function returns zero if successful. On error it will return a negative 2247 * error value. 2248 **/ 2249 static int 2250 lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file) 2251 { 2252 struct lpfc_hba *phba = inode->i_private; 2253 struct lpfc_debug *debug; 2254 int size; 2255 int rc = -ENOMEM; 2256 2257 spin_lock_irq(&phba->hbalock); 2258 if (phba->ras_fwlog.state != ACTIVE) { 2259 spin_unlock_irq(&phba->hbalock); 2260 rc = -EINVAL; 2261 goto out; 2262 } 2263 spin_unlock_irq(&phba->hbalock); 2264 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2265 if (!debug) 2266 goto out; 2267 2268 size = LPFC_RAS_MIN_BUFF_POST_SIZE * phba->cfg_ras_fwlog_buffsize; 2269 debug->buffer = vmalloc(size); 2270 if (!debug->buffer) 2271 goto free_debug; 2272 2273 debug->len = lpfc_debugfs_ras_log_data(phba, debug->buffer, size); 2274 if (debug->len < 0) { 2275 rc = -EINVAL; 2276 goto free_buffer; 2277 } 2278 file->private_data = debug; 2279 2280 return 0; 2281 2282 free_buffer: 2283 vfree(debug->buffer); 2284 free_debug: 2285 kfree(debug); 2286 out: 2287 return rc; 2288 } 2289 2290 /** 2291 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 2292 * @inode: The inode pointer that contains a vport pointer. 2293 * @file: The file pointer to attach the log output. 2294 * 2295 * Description: 2296 * This routine is the entry point for the debugfs open file operation. It gets 2297 * the vport from the i_private field in @inode, allocates the necessary buffer 2298 * for the log, fills the buffer from the in-memory log for this vport, and then 2299 * returns a pointer to that log in the private_data field in @file. 2300 * 2301 * Returns: 2302 * This function returns zero if successful. On error it will return a negative 2303 * error value. 2304 **/ 2305 static int 2306 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 2307 { 2308 struct lpfc_hba *phba = inode->i_private; 2309 struct lpfc_debug *debug; 2310 int rc = -ENOMEM; 2311 2312 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2313 if (!debug) 2314 goto out; 2315 2316 /* Round to page boundary */ 2317 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 2318 if (!debug->buffer) { 2319 kfree(debug); 2320 goto out; 2321 } 2322 2323 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 2324 LPFC_DUMPHBASLIM_SIZE); 2325 file->private_data = debug; 2326 2327 rc = 0; 2328 out: 2329 return rc; 2330 } 2331 2332 /** 2333 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 2334 * @inode: The inode pointer that contains a vport pointer. 2335 * @file: The file pointer to attach the log output. 2336 * 2337 * Description: 2338 * This routine is the entry point for the debugfs open file operation. It gets 2339 * the vport from the i_private field in @inode, allocates the necessary buffer 2340 * for the log, fills the buffer from the in-memory log for this vport, and then 2341 * returns a pointer to that log in the private_data field in @file. 2342 * 2343 * Returns: 2344 * This function returns zero if successful. On error it will return a negative 2345 * error value. 2346 **/ 2347 static int 2348 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 2349 { 2350 struct lpfc_hba *phba = inode->i_private; 2351 struct lpfc_debug *debug; 2352 int rc = -ENOMEM; 2353 2354 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2355 if (!debug) 2356 goto out; 2357 2358 /* Round to page boundary */ 2359 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 2360 if (!debug->buffer) { 2361 kfree(debug); 2362 goto out; 2363 } 2364 2365 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 2366 LPFC_DUMPHOSTSLIM_SIZE); 2367 file->private_data = debug; 2368 2369 rc = 0; 2370 out: 2371 return rc; 2372 } 2373 2374 static ssize_t 2375 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 2376 size_t nbytes, loff_t *ppos) 2377 { 2378 struct dentry *dent = file->f_path.dentry; 2379 struct lpfc_hba *phba = file->private_data; 2380 char cbuf[32]; 2381 uint64_t tmp = 0; 2382 int cnt = 0; 2383 2384 if (dent == phba->debug_writeGuard) 2385 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); 2386 else if (dent == phba->debug_writeApp) 2387 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); 2388 else if (dent == phba->debug_writeRef) 2389 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); 2390 else if (dent == phba->debug_readGuard) 2391 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); 2392 else if (dent == phba->debug_readApp) 2393 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); 2394 else if (dent == phba->debug_readRef) 2395 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); 2396 else if (dent == phba->debug_InjErrNPortID) 2397 cnt = scnprintf(cbuf, 32, "0x%06x\n", 2398 phba->lpfc_injerr_nportid); 2399 else if (dent == phba->debug_InjErrWWPN) { 2400 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); 2401 tmp = cpu_to_be64(tmp); 2402 cnt = scnprintf(cbuf, 32, "0x%016llx\n", tmp); 2403 } else if (dent == phba->debug_InjErrLBA) { 2404 if (phba->lpfc_injerr_lba == (sector_t)(-1)) 2405 cnt = scnprintf(cbuf, 32, "off\n"); 2406 else 2407 cnt = scnprintf(cbuf, 32, "0x%llx\n", 2408 (uint64_t) phba->lpfc_injerr_lba); 2409 } else 2410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2411 "0547 Unknown debugfs error injection entry\n"); 2412 2413 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 2414 } 2415 2416 static ssize_t 2417 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 2418 size_t nbytes, loff_t *ppos) 2419 { 2420 struct dentry *dent = file->f_path.dentry; 2421 struct lpfc_hba *phba = file->private_data; 2422 char dstbuf[33]; 2423 uint64_t tmp = 0; 2424 int size; 2425 2426 memset(dstbuf, 0, 33); 2427 size = (nbytes < 32) ? nbytes : 32; 2428 if (copy_from_user(dstbuf, buf, size)) 2429 return 0; 2430 2431 if (dent == phba->debug_InjErrLBA) { 2432 if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f')) 2433 tmp = (uint64_t)(-1); 2434 } 2435 2436 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) 2437 return 0; 2438 2439 if (dent == phba->debug_writeGuard) 2440 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 2441 else if (dent == phba->debug_writeApp) 2442 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 2443 else if (dent == phba->debug_writeRef) 2444 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 2445 else if (dent == phba->debug_readGuard) 2446 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 2447 else if (dent == phba->debug_readApp) 2448 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 2449 else if (dent == phba->debug_readRef) 2450 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 2451 else if (dent == phba->debug_InjErrLBA) 2452 phba->lpfc_injerr_lba = (sector_t)tmp; 2453 else if (dent == phba->debug_InjErrNPortID) 2454 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 2455 else if (dent == phba->debug_InjErrWWPN) { 2456 tmp = cpu_to_be64(tmp); 2457 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); 2458 } else 2459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2460 "0548 Unknown debugfs error injection entry\n"); 2461 2462 return nbytes; 2463 } 2464 2465 static int 2466 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 2467 { 2468 return 0; 2469 } 2470 2471 /** 2472 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 2473 * @inode: The inode pointer that contains a vport pointer. 2474 * @file: The file pointer to attach the log output. 2475 * 2476 * Description: 2477 * This routine is the entry point for the debugfs open file operation. It gets 2478 * the vport from the i_private field in @inode, allocates the necessary buffer 2479 * for the log, fills the buffer from the in-memory log for this vport, and then 2480 * returns a pointer to that log in the private_data field in @file. 2481 * 2482 * Returns: 2483 * This function returns zero if successful. On error it will return a negative 2484 * error value. 2485 **/ 2486 static int 2487 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 2488 { 2489 struct lpfc_vport *vport = inode->i_private; 2490 struct lpfc_debug *debug; 2491 int rc = -ENOMEM; 2492 2493 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2494 if (!debug) 2495 goto out; 2496 2497 /* Round to page boundary */ 2498 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 2499 if (!debug->buffer) { 2500 kfree(debug); 2501 goto out; 2502 } 2503 2504 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 2505 LPFC_NODELIST_SIZE); 2506 file->private_data = debug; 2507 2508 rc = 0; 2509 out: 2510 return rc; 2511 } 2512 2513 /** 2514 * lpfc_debugfs_lseek - Seek through a debugfs file 2515 * @file: The file pointer to seek through. 2516 * @off: The offset to seek to or the amount to seek by. 2517 * @whence: Indicates how to seek. 2518 * 2519 * Description: 2520 * This routine is the entry point for the debugfs lseek file operation. The 2521 * @whence parameter indicates whether @off is the offset to directly seek to, 2522 * or if it is a value to seek forward or reverse by. This function figures out 2523 * what the new offset of the debugfs file will be and assigns that value to the 2524 * f_pos field of @file. 2525 * 2526 * Returns: 2527 * This function returns the new offset if successful and returns a negative 2528 * error if unable to process the seek. 2529 **/ 2530 static loff_t 2531 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 2532 { 2533 struct lpfc_debug *debug = file->private_data; 2534 return fixed_size_llseek(file, off, whence, debug->len); 2535 } 2536 2537 /** 2538 * lpfc_debugfs_read - Read a debugfs file 2539 * @file: The file pointer to read from. 2540 * @buf: The buffer to copy the data to. 2541 * @nbytes: The number of bytes to read. 2542 * @ppos: The position in the file to start reading from. 2543 * 2544 * Description: 2545 * This routine reads data from from the buffer indicated in the private_data 2546 * field of @file. It will start reading at @ppos and copy up to @nbytes of 2547 * data to @buf. 2548 * 2549 * Returns: 2550 * This function returns the amount of data that was read (this could be less 2551 * than @nbytes if the end of the file was reached) or a negative error value. 2552 **/ 2553 static ssize_t 2554 lpfc_debugfs_read(struct file *file, char __user *buf, 2555 size_t nbytes, loff_t *ppos) 2556 { 2557 struct lpfc_debug *debug = file->private_data; 2558 2559 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 2560 debug->len); 2561 } 2562 2563 /** 2564 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 2565 * @inode: The inode pointer that contains a vport pointer. (unused) 2566 * @file: The file pointer that contains the buffer to release. 2567 * 2568 * Description: 2569 * This routine frees the buffer that was allocated when the debugfs file was 2570 * opened. 2571 * 2572 * Returns: 2573 * This function returns zero. 2574 **/ 2575 static int 2576 lpfc_debugfs_release(struct inode *inode, struct file *file) 2577 { 2578 struct lpfc_debug *debug = file->private_data; 2579 2580 kfree(debug->buffer); 2581 kfree(debug); 2582 2583 return 0; 2584 } 2585 2586 /** 2587 * lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics 2588 * @file: The file pointer to read from. 2589 * @buf: The buffer to copy the user data from. 2590 * @nbytes: The number of bytes to get. 2591 * @ppos: The position in the file to start reading from. 2592 * 2593 * Description: 2594 * This routine clears multi-XRI pools statistics when buf contains "clear". 2595 * 2596 * Return Value: 2597 * It returns the @nbytges passing in from debugfs user space when successful. 2598 * In case of error conditions, it returns proper error code back to the user 2599 * space. 2600 **/ 2601 static ssize_t 2602 lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf, 2603 size_t nbytes, loff_t *ppos) 2604 { 2605 struct lpfc_debug *debug = file->private_data; 2606 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2607 char mybuf[64]; 2608 char *pbuf; 2609 u32 i; 2610 u32 hwq_count; 2611 struct lpfc_sli4_hdw_queue *qp; 2612 struct lpfc_multixri_pool *multixri_pool; 2613 2614 if (nbytes > 64) 2615 nbytes = 64; 2616 2617 memset(mybuf, 0, sizeof(mybuf)); 2618 2619 if (copy_from_user(mybuf, buf, nbytes)) 2620 return -EFAULT; 2621 pbuf = &mybuf[0]; 2622 2623 if ((strncmp(pbuf, "clear", strlen("clear"))) == 0) { 2624 hwq_count = phba->cfg_hdw_queue; 2625 for (i = 0; i < hwq_count; i++) { 2626 qp = &phba->sli4_hba.hdwq[i]; 2627 multixri_pool = qp->p_multixri_pool; 2628 if (!multixri_pool) 2629 continue; 2630 2631 qp->empty_io_bufs = 0; 2632 multixri_pool->pbl_empty_count = 0; 2633 #ifdef LPFC_MXP_STAT 2634 multixri_pool->above_limit_count = 0; 2635 multixri_pool->below_limit_count = 0; 2636 multixri_pool->stat_max_hwm = 0; 2637 multixri_pool->local_pbl_hit_count = 0; 2638 multixri_pool->other_pbl_hit_count = 0; 2639 2640 multixri_pool->stat_pbl_count = 0; 2641 multixri_pool->stat_pvt_count = 0; 2642 multixri_pool->stat_busy_count = 0; 2643 multixri_pool->stat_snapshot_taken = 0; 2644 #endif 2645 } 2646 return strlen(pbuf); 2647 } 2648 2649 return -EINVAL; 2650 } 2651 2652 static int 2653 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 2654 { 2655 struct lpfc_vport *vport = inode->i_private; 2656 struct lpfc_debug *debug; 2657 int rc = -ENOMEM; 2658 2659 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2660 if (!debug) 2661 goto out; 2662 2663 /* Round to page boundary */ 2664 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 2665 if (!debug->buffer) { 2666 kfree(debug); 2667 goto out; 2668 } 2669 2670 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 2671 LPFC_NVMESTAT_SIZE); 2672 2673 debug->i_private = inode->i_private; 2674 file->private_data = debug; 2675 2676 rc = 0; 2677 out: 2678 return rc; 2679 } 2680 2681 static ssize_t 2682 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 2683 size_t nbytes, loff_t *ppos) 2684 { 2685 struct lpfc_debug *debug = file->private_data; 2686 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2687 struct lpfc_hba *phba = vport->phba; 2688 struct lpfc_nvmet_tgtport *tgtp; 2689 char mybuf[64]; 2690 char *pbuf; 2691 2692 if (!phba->targetport) 2693 return -ENXIO; 2694 2695 if (nbytes > 64) 2696 nbytes = 64; 2697 2698 memset(mybuf, 0, sizeof(mybuf)); 2699 2700 if (copy_from_user(mybuf, buf, nbytes)) 2701 return -EFAULT; 2702 pbuf = &mybuf[0]; 2703 2704 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2705 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2706 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2707 atomic_set(&tgtp->rcv_ls_req_in, 0); 2708 atomic_set(&tgtp->rcv_ls_req_out, 0); 2709 atomic_set(&tgtp->rcv_ls_req_drop, 0); 2710 atomic_set(&tgtp->xmt_ls_abort, 0); 2711 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 2712 atomic_set(&tgtp->xmt_ls_rsp, 0); 2713 atomic_set(&tgtp->xmt_ls_drop, 0); 2714 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 2715 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 2716 2717 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 2718 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 2719 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 2720 atomic_set(&tgtp->xmt_fcp_drop, 0); 2721 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 2722 atomic_set(&tgtp->xmt_fcp_read, 0); 2723 atomic_set(&tgtp->xmt_fcp_write, 0); 2724 atomic_set(&tgtp->xmt_fcp_rsp, 0); 2725 atomic_set(&tgtp->xmt_fcp_release, 0); 2726 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 2727 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 2728 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 2729 2730 atomic_set(&tgtp->xmt_fcp_abort, 0); 2731 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 2732 atomic_set(&tgtp->xmt_abort_sol, 0); 2733 atomic_set(&tgtp->xmt_abort_unsol, 0); 2734 atomic_set(&tgtp->xmt_abort_rsp, 0); 2735 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 2736 } 2737 return nbytes; 2738 } 2739 2740 static int 2741 lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file) 2742 { 2743 struct lpfc_vport *vport = inode->i_private; 2744 struct lpfc_debug *debug; 2745 int rc = -ENOMEM; 2746 2747 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2748 if (!debug) 2749 goto out; 2750 2751 /* Round to page boundary */ 2752 debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL); 2753 if (!debug->buffer) { 2754 kfree(debug); 2755 goto out; 2756 } 2757 2758 debug->len = lpfc_debugfs_scsistat_data(vport, debug->buffer, 2759 LPFC_SCSISTAT_SIZE); 2760 2761 debug->i_private = inode->i_private; 2762 file->private_data = debug; 2763 2764 rc = 0; 2765 out: 2766 return rc; 2767 } 2768 2769 static ssize_t 2770 lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf, 2771 size_t nbytes, loff_t *ppos) 2772 { 2773 struct lpfc_debug *debug = file->private_data; 2774 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2775 struct lpfc_hba *phba = vport->phba; 2776 char mybuf[6] = {0}; 2777 int i; 2778 2779 if (copy_from_user(mybuf, buf, (nbytes >= sizeof(mybuf)) ? 2780 (sizeof(mybuf) - 1) : nbytes)) 2781 return -EFAULT; 2782 2783 if ((strncmp(&mybuf[0], "reset", strlen("reset")) == 0) || 2784 (strncmp(&mybuf[0], "zero", strlen("zero")) == 0)) { 2785 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2786 memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0, 2787 sizeof(phba->sli4_hba.hdwq[i].scsi_cstat)); 2788 } 2789 } 2790 2791 return nbytes; 2792 } 2793 2794 static int 2795 lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file) 2796 { 2797 struct lpfc_vport *vport = inode->i_private; 2798 struct lpfc_debug *debug; 2799 int rc = -ENOMEM; 2800 2801 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2802 if (!debug) 2803 goto out; 2804 2805 /* Round to page boundary */ 2806 debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL); 2807 if (!debug->buffer) { 2808 kfree(debug); 2809 goto out; 2810 } 2811 2812 debug->len = lpfc_debugfs_ioktime_data(vport, debug->buffer, 2813 LPFC_IOKTIME_SIZE); 2814 2815 debug->i_private = inode->i_private; 2816 file->private_data = debug; 2817 2818 rc = 0; 2819 out: 2820 return rc; 2821 } 2822 2823 static ssize_t 2824 lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf, 2825 size_t nbytes, loff_t *ppos) 2826 { 2827 struct lpfc_debug *debug = file->private_data; 2828 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2829 struct lpfc_hba *phba = vport->phba; 2830 char mybuf[64]; 2831 char *pbuf; 2832 2833 if (nbytes > 64) 2834 nbytes = 64; 2835 2836 memset(mybuf, 0, sizeof(mybuf)); 2837 2838 if (copy_from_user(mybuf, buf, nbytes)) 2839 return -EFAULT; 2840 pbuf = &mybuf[0]; 2841 2842 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2843 phba->ktime_data_samples = 0; 2844 phba->ktime_status_samples = 0; 2845 phba->ktime_seg1_total = 0; 2846 phba->ktime_seg1_max = 0; 2847 phba->ktime_seg1_min = 0xffffffff; 2848 phba->ktime_seg2_total = 0; 2849 phba->ktime_seg2_max = 0; 2850 phba->ktime_seg2_min = 0xffffffff; 2851 phba->ktime_seg3_total = 0; 2852 phba->ktime_seg3_max = 0; 2853 phba->ktime_seg3_min = 0xffffffff; 2854 phba->ktime_seg4_total = 0; 2855 phba->ktime_seg4_max = 0; 2856 phba->ktime_seg4_min = 0xffffffff; 2857 phba->ktime_seg5_total = 0; 2858 phba->ktime_seg5_max = 0; 2859 phba->ktime_seg5_min = 0xffffffff; 2860 phba->ktime_seg6_total = 0; 2861 phba->ktime_seg6_max = 0; 2862 phba->ktime_seg6_min = 0xffffffff; 2863 phba->ktime_seg7_total = 0; 2864 phba->ktime_seg7_max = 0; 2865 phba->ktime_seg7_min = 0xffffffff; 2866 phba->ktime_seg8_total = 0; 2867 phba->ktime_seg8_max = 0; 2868 phba->ktime_seg8_min = 0xffffffff; 2869 phba->ktime_seg9_total = 0; 2870 phba->ktime_seg9_max = 0; 2871 phba->ktime_seg9_min = 0xffffffff; 2872 phba->ktime_seg10_total = 0; 2873 phba->ktime_seg10_max = 0; 2874 phba->ktime_seg10_min = 0xffffffff; 2875 2876 phba->ktime_on = 1; 2877 return strlen(pbuf); 2878 } else if ((strncmp(pbuf, "off", 2879 sizeof("off") - 1) == 0)) { 2880 phba->ktime_on = 0; 2881 return strlen(pbuf); 2882 } else if ((strncmp(pbuf, "zero", 2883 sizeof("zero") - 1) == 0)) { 2884 phba->ktime_data_samples = 0; 2885 phba->ktime_status_samples = 0; 2886 phba->ktime_seg1_total = 0; 2887 phba->ktime_seg1_max = 0; 2888 phba->ktime_seg1_min = 0xffffffff; 2889 phba->ktime_seg2_total = 0; 2890 phba->ktime_seg2_max = 0; 2891 phba->ktime_seg2_min = 0xffffffff; 2892 phba->ktime_seg3_total = 0; 2893 phba->ktime_seg3_max = 0; 2894 phba->ktime_seg3_min = 0xffffffff; 2895 phba->ktime_seg4_total = 0; 2896 phba->ktime_seg4_max = 0; 2897 phba->ktime_seg4_min = 0xffffffff; 2898 phba->ktime_seg5_total = 0; 2899 phba->ktime_seg5_max = 0; 2900 phba->ktime_seg5_min = 0xffffffff; 2901 phba->ktime_seg6_total = 0; 2902 phba->ktime_seg6_max = 0; 2903 phba->ktime_seg6_min = 0xffffffff; 2904 phba->ktime_seg7_total = 0; 2905 phba->ktime_seg7_max = 0; 2906 phba->ktime_seg7_min = 0xffffffff; 2907 phba->ktime_seg8_total = 0; 2908 phba->ktime_seg8_max = 0; 2909 phba->ktime_seg8_min = 0xffffffff; 2910 phba->ktime_seg9_total = 0; 2911 phba->ktime_seg9_max = 0; 2912 phba->ktime_seg9_min = 0xffffffff; 2913 phba->ktime_seg10_total = 0; 2914 phba->ktime_seg10_max = 0; 2915 phba->ktime_seg10_min = 0xffffffff; 2916 return strlen(pbuf); 2917 } 2918 return -EINVAL; 2919 } 2920 2921 static int 2922 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2923 { 2924 struct lpfc_hba *phba = inode->i_private; 2925 struct lpfc_debug *debug; 2926 int rc = -ENOMEM; 2927 2928 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2929 if (!debug) 2930 goto out; 2931 2932 /* Round to page boundary */ 2933 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2934 if (!debug->buffer) { 2935 kfree(debug); 2936 goto out; 2937 } 2938 2939 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2940 LPFC_NVMEIO_TRC_SIZE); 2941 2942 debug->i_private = inode->i_private; 2943 file->private_data = debug; 2944 2945 rc = 0; 2946 out: 2947 return rc; 2948 } 2949 2950 static ssize_t 2951 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2952 size_t nbytes, loff_t *ppos) 2953 { 2954 struct lpfc_debug *debug = file->private_data; 2955 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2956 int i; 2957 unsigned long sz; 2958 char mybuf[64]; 2959 char *pbuf; 2960 2961 if (nbytes > 64) 2962 nbytes = 64; 2963 2964 memset(mybuf, 0, sizeof(mybuf)); 2965 2966 if (copy_from_user(mybuf, buf, nbytes)) 2967 return -EFAULT; 2968 pbuf = &mybuf[0]; 2969 2970 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2971 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2972 "0570 nvmeio_trc_off\n"); 2973 phba->nvmeio_trc_output_idx = 0; 2974 phba->nvmeio_trc_on = 0; 2975 return strlen(pbuf); 2976 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2978 "0571 nvmeio_trc_on\n"); 2979 phba->nvmeio_trc_output_idx = 0; 2980 phba->nvmeio_trc_on = 1; 2981 return strlen(pbuf); 2982 } 2983 2984 /* We must be off to allocate the trace buffer */ 2985 if (phba->nvmeio_trc_on != 0) 2986 return -EINVAL; 2987 2988 /* If not on or off, the parameter is the trace buffer size */ 2989 i = kstrtoul(pbuf, 0, &sz); 2990 if (i) 2991 return -EINVAL; 2992 phba->nvmeio_trc_size = (uint32_t)sz; 2993 2994 /* It must be a power of 2 - round down */ 2995 i = 0; 2996 while (sz > 1) { 2997 sz = sz >> 1; 2998 i++; 2999 } 3000 sz = (1 << i); 3001 if (phba->nvmeio_trc_size != sz) 3002 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3003 "0572 nvmeio_trc_size changed to %ld\n", 3004 sz); 3005 phba->nvmeio_trc_size = (uint32_t)sz; 3006 3007 /* If one previously exists, free it */ 3008 kfree(phba->nvmeio_trc); 3009 3010 /* Allocate new trace buffer and initialize */ 3011 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 3012 sz), GFP_KERNEL); 3013 if (!phba->nvmeio_trc) { 3014 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3015 "0573 Cannot create debugfs " 3016 "nvmeio_trc buffer\n"); 3017 return -ENOMEM; 3018 } 3019 atomic_set(&phba->nvmeio_trc_cnt, 0); 3020 phba->nvmeio_trc_on = 0; 3021 phba->nvmeio_trc_output_idx = 0; 3022 3023 return strlen(pbuf); 3024 } 3025 3026 static int 3027 lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file) 3028 { 3029 struct lpfc_vport *vport = inode->i_private; 3030 struct lpfc_debug *debug; 3031 int rc = -ENOMEM; 3032 3033 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3034 if (!debug) 3035 goto out; 3036 3037 /* Round to page boundary */ 3038 debug->buffer = kcalloc(1, LPFC_SCSISTAT_SIZE, GFP_KERNEL); 3039 if (!debug->buffer) { 3040 kfree(debug); 3041 goto out; 3042 } 3043 3044 debug->len = lpfc_debugfs_hdwqstat_data(vport, debug->buffer, 3045 LPFC_SCSISTAT_SIZE); 3046 3047 debug->i_private = inode->i_private; 3048 file->private_data = debug; 3049 3050 rc = 0; 3051 out: 3052 return rc; 3053 } 3054 3055 static ssize_t 3056 lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf, 3057 size_t nbytes, loff_t *ppos) 3058 { 3059 struct lpfc_debug *debug = file->private_data; 3060 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 3061 struct lpfc_hba *phba = vport->phba; 3062 struct lpfc_hdwq_stat *c_stat; 3063 char mybuf[64]; 3064 char *pbuf; 3065 int i; 3066 3067 if (nbytes > 64) 3068 nbytes = 64; 3069 3070 memset(mybuf, 0, sizeof(mybuf)); 3071 3072 if (copy_from_user(mybuf, buf, nbytes)) 3073 return -EFAULT; 3074 pbuf = &mybuf[0]; 3075 3076 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 3077 if (phba->nvmet_support) 3078 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3079 else 3080 phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO | 3081 LPFC_CHECK_SCSI_IO); 3082 return strlen(pbuf); 3083 } else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) { 3084 if (phba->nvmet_support) 3085 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3086 else 3087 phba->hdwqstat_on |= LPFC_CHECK_NVME_IO; 3088 return strlen(pbuf); 3089 } else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) { 3090 if (!phba->nvmet_support) 3091 phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO; 3092 return strlen(pbuf); 3093 } else if ((strncmp(pbuf, "nvme_off", sizeof("nvme_off") - 1) == 0)) { 3094 phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO | 3095 LPFC_CHECK_NVMET_IO); 3096 return strlen(pbuf); 3097 } else if ((strncmp(pbuf, "scsi_off", sizeof("scsi_off") - 1) == 0)) { 3098 phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO; 3099 return strlen(pbuf); 3100 } else if ((strncmp(pbuf, "off", 3101 sizeof("off") - 1) == 0)) { 3102 phba->hdwqstat_on = LPFC_CHECK_OFF; 3103 return strlen(pbuf); 3104 } else if ((strncmp(pbuf, "zero", 3105 sizeof("zero") - 1) == 0)) { 3106 for_each_present_cpu(i) { 3107 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i); 3108 c_stat->xmt_io = 0; 3109 c_stat->cmpl_io = 0; 3110 c_stat->rcv_io = 0; 3111 } 3112 return strlen(pbuf); 3113 } 3114 return -EINVAL; 3115 } 3116 3117 /* 3118 * --------------------------------- 3119 * iDiag debugfs file access methods 3120 * --------------------------------- 3121 * 3122 * All access methods are through the proper SLI4 PCI function's debugfs 3123 * iDiag directory: 3124 * 3125 * /sys/kernel/debug/lpfc/fn<#>/iDiag 3126 */ 3127 3128 /** 3129 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 3130 * @buf: The pointer to the user space buffer. 3131 * @nbytes: The number of bytes in the user space buffer. 3132 * @idiag_cmd: pointer to the idiag command struct. 3133 * 3134 * This routine reads data from debugfs user space buffer and parses the 3135 * buffer for getting the idiag command and arguments. The while space in 3136 * between the set of data is used as the parsing separator. 3137 * 3138 * This routine returns 0 when successful, it returns proper error code 3139 * back to the user space in error conditions. 3140 */ 3141 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 3142 struct lpfc_idiag_cmd *idiag_cmd) 3143 { 3144 char mybuf[64]; 3145 char *pbuf, *step_str; 3146 int i; 3147 size_t bsize; 3148 3149 memset(mybuf, 0, sizeof(mybuf)); 3150 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 3151 bsize = min(nbytes, (sizeof(mybuf)-1)); 3152 3153 if (copy_from_user(mybuf, buf, bsize)) 3154 return -EFAULT; 3155 pbuf = &mybuf[0]; 3156 step_str = strsep(&pbuf, "\t "); 3157 3158 /* The opcode must present */ 3159 if (!step_str) 3160 return -EINVAL; 3161 3162 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 3163 if (idiag_cmd->opcode == 0) 3164 return -EINVAL; 3165 3166 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 3167 step_str = strsep(&pbuf, "\t "); 3168 if (!step_str) 3169 return i; 3170 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 3171 } 3172 return i; 3173 } 3174 3175 /** 3176 * lpfc_idiag_open - idiag open debugfs 3177 * @inode: The inode pointer that contains a pointer to phba. 3178 * @file: The file pointer to attach the file operation. 3179 * 3180 * Description: 3181 * This routine is the entry point for the debugfs open file operation. It 3182 * gets the reference to phba from the i_private field in @inode, it then 3183 * allocates buffer for the file operation, performs the necessary PCI config 3184 * space read into the allocated buffer according to the idiag user command 3185 * setup, and then returns a pointer to buffer in the private_data field in 3186 * @file. 3187 * 3188 * Returns: 3189 * This function returns zero if successful. On error it will return an 3190 * negative error value. 3191 **/ 3192 static int 3193 lpfc_idiag_open(struct inode *inode, struct file *file) 3194 { 3195 struct lpfc_debug *debug; 3196 3197 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3198 if (!debug) 3199 return -ENOMEM; 3200 3201 debug->i_private = inode->i_private; 3202 debug->buffer = NULL; 3203 file->private_data = debug; 3204 3205 return 0; 3206 } 3207 3208 /** 3209 * lpfc_idiag_release - Release idiag access file operation 3210 * @inode: The inode pointer that contains a vport pointer. (unused) 3211 * @file: The file pointer that contains the buffer to release. 3212 * 3213 * Description: 3214 * This routine is the generic release routine for the idiag access file 3215 * operation, it frees the buffer that was allocated when the debugfs file 3216 * was opened. 3217 * 3218 * Returns: 3219 * This function returns zero. 3220 **/ 3221 static int 3222 lpfc_idiag_release(struct inode *inode, struct file *file) 3223 { 3224 struct lpfc_debug *debug = file->private_data; 3225 3226 /* Free the buffers to the file operation */ 3227 kfree(debug->buffer); 3228 kfree(debug); 3229 3230 return 0; 3231 } 3232 3233 /** 3234 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 3235 * @inode: The inode pointer that contains a vport pointer. (unused) 3236 * @file: The file pointer that contains the buffer to release. 3237 * 3238 * Description: 3239 * This routine frees the buffer that was allocated when the debugfs file 3240 * was opened. It also reset the fields in the idiag command struct in the 3241 * case of command for write operation. 3242 * 3243 * Returns: 3244 * This function returns zero. 3245 **/ 3246 static int 3247 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 3248 { 3249 struct lpfc_debug *debug = file->private_data; 3250 3251 if (debug->op == LPFC_IDIAG_OP_WR) { 3252 switch (idiag.cmd.opcode) { 3253 case LPFC_IDIAG_CMD_PCICFG_WR: 3254 case LPFC_IDIAG_CMD_PCICFG_ST: 3255 case LPFC_IDIAG_CMD_PCICFG_CL: 3256 case LPFC_IDIAG_CMD_QUEACC_WR: 3257 case LPFC_IDIAG_CMD_QUEACC_ST: 3258 case LPFC_IDIAG_CMD_QUEACC_CL: 3259 memset(&idiag, 0, sizeof(idiag)); 3260 break; 3261 default: 3262 break; 3263 } 3264 } 3265 3266 /* Free the buffers to the file operation */ 3267 kfree(debug->buffer); 3268 kfree(debug); 3269 3270 return 0; 3271 } 3272 3273 /** 3274 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 3275 * @file: The file pointer to read from. 3276 * @buf: The buffer to copy the data to. 3277 * @nbytes: The number of bytes to read. 3278 * @ppos: The position in the file to start reading from. 3279 * 3280 * Description: 3281 * This routine reads data from the @phba pci config space according to the 3282 * idiag command, and copies to user @buf. Depending on the PCI config space 3283 * read command setup, it does either a single register read of a byte 3284 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 3285 * registers from the 4K extended PCI config space. 3286 * 3287 * Returns: 3288 * This function returns the amount of data that was read (this could be less 3289 * than @nbytes if the end of the file was reached) or a negative error value. 3290 **/ 3291 static ssize_t 3292 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 3293 loff_t *ppos) 3294 { 3295 struct lpfc_debug *debug = file->private_data; 3296 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3297 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 3298 int where, count; 3299 char *pbuffer; 3300 struct pci_dev *pdev; 3301 uint32_t u32val; 3302 uint16_t u16val; 3303 uint8_t u8val; 3304 3305 pdev = phba->pcidev; 3306 if (!pdev) 3307 return 0; 3308 3309 /* This is a user read operation */ 3310 debug->op = LPFC_IDIAG_OP_RD; 3311 3312 if (!debug->buffer) 3313 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 3314 if (!debug->buffer) 3315 return 0; 3316 pbuffer = debug->buffer; 3317 3318 if (*ppos) 3319 return 0; 3320 3321 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3322 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3323 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3324 } else 3325 return 0; 3326 3327 /* Read single PCI config space register */ 3328 switch (count) { 3329 case SIZE_U8: /* byte (8 bits) */ 3330 pci_read_config_byte(pdev, where, &u8val); 3331 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3332 "%03x: %02x\n", where, u8val); 3333 break; 3334 case SIZE_U16: /* word (16 bits) */ 3335 pci_read_config_word(pdev, where, &u16val); 3336 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3337 "%03x: %04x\n", where, u16val); 3338 break; 3339 case SIZE_U32: /* double word (32 bits) */ 3340 pci_read_config_dword(pdev, where, &u32val); 3341 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3342 "%03x: %08x\n", where, u32val); 3343 break; 3344 case LPFC_PCI_CFG_BROWSE: /* browse all */ 3345 goto pcicfg_browse; 3346 break; 3347 default: 3348 /* illegal count */ 3349 len = 0; 3350 break; 3351 } 3352 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3353 3354 pcicfg_browse: 3355 3356 /* Browse all PCI config space registers */ 3357 offset_label = idiag.offset.last_rd; 3358 offset = offset_label; 3359 3360 /* Read PCI config space */ 3361 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3362 "%03x: ", offset_label); 3363 while (index > 0) { 3364 pci_read_config_dword(pdev, offset, &u32val); 3365 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3366 "%08x ", u32val); 3367 offset += sizeof(uint32_t); 3368 if (offset >= LPFC_PCI_CFG_SIZE) { 3369 len += scnprintf(pbuffer+len, 3370 LPFC_PCI_CFG_SIZE-len, "\n"); 3371 break; 3372 } 3373 index -= sizeof(uint32_t); 3374 if (!index) 3375 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3376 "\n"); 3377 else if (!(index % (8 * sizeof(uint32_t)))) { 3378 offset_label += (8 * sizeof(uint32_t)); 3379 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3380 "\n%03x: ", offset_label); 3381 } 3382 } 3383 3384 /* Set up the offset for next portion of pci cfg read */ 3385 if (index == 0) { 3386 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 3387 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 3388 idiag.offset.last_rd = 0; 3389 } else 3390 idiag.offset.last_rd = 0; 3391 3392 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3393 } 3394 3395 /** 3396 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 3397 * @file: The file pointer to read from. 3398 * @buf: The buffer to copy the user data from. 3399 * @nbytes: The number of bytes to get. 3400 * @ppos: The position in the file to start reading from. 3401 * 3402 * This routine get the debugfs idiag command struct from user space and 3403 * then perform the syntax check for PCI config space read or write command 3404 * accordingly. In the case of PCI config space read command, it sets up 3405 * the command in the idiag command struct for the debugfs read operation. 3406 * In the case of PCI config space write operation, it executes the write 3407 * operation into the PCI config space accordingly. 3408 * 3409 * It returns the @nbytges passing in from debugfs user space when successful. 3410 * In case of error conditions, it returns proper error code back to the user 3411 * space. 3412 */ 3413 static ssize_t 3414 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 3415 size_t nbytes, loff_t *ppos) 3416 { 3417 struct lpfc_debug *debug = file->private_data; 3418 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3419 uint32_t where, value, count; 3420 uint32_t u32val; 3421 uint16_t u16val; 3422 uint8_t u8val; 3423 struct pci_dev *pdev; 3424 int rc; 3425 3426 pdev = phba->pcidev; 3427 if (!pdev) 3428 return -EFAULT; 3429 3430 /* This is a user write operation */ 3431 debug->op = LPFC_IDIAG_OP_WR; 3432 3433 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3434 if (rc < 0) 3435 return rc; 3436 3437 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3438 /* Sanity check on PCI config read command line arguments */ 3439 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 3440 goto error_out; 3441 /* Read command from PCI config space, set up command fields */ 3442 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3443 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3444 if (count == LPFC_PCI_CFG_BROWSE) { 3445 if (where % sizeof(uint32_t)) 3446 goto error_out; 3447 /* Starting offset to browse */ 3448 idiag.offset.last_rd = where; 3449 } else if ((count != sizeof(uint8_t)) && 3450 (count != sizeof(uint16_t)) && 3451 (count != sizeof(uint32_t))) 3452 goto error_out; 3453 if (count == sizeof(uint8_t)) { 3454 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3455 goto error_out; 3456 if (where % sizeof(uint8_t)) 3457 goto error_out; 3458 } 3459 if (count == sizeof(uint16_t)) { 3460 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3461 goto error_out; 3462 if (where % sizeof(uint16_t)) 3463 goto error_out; 3464 } 3465 if (count == sizeof(uint32_t)) { 3466 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3467 goto error_out; 3468 if (where % sizeof(uint32_t)) 3469 goto error_out; 3470 } 3471 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 3472 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 3473 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3474 /* Sanity check on PCI config write command line arguments */ 3475 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 3476 goto error_out; 3477 /* Write command to PCI config space, read-modify-write */ 3478 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3479 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3480 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 3481 /* Sanity checks */ 3482 if ((count != sizeof(uint8_t)) && 3483 (count != sizeof(uint16_t)) && 3484 (count != sizeof(uint32_t))) 3485 goto error_out; 3486 if (count == sizeof(uint8_t)) { 3487 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3488 goto error_out; 3489 if (where % sizeof(uint8_t)) 3490 goto error_out; 3491 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3492 pci_write_config_byte(pdev, where, 3493 (uint8_t)value); 3494 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3495 rc = pci_read_config_byte(pdev, where, &u8val); 3496 if (!rc) { 3497 u8val |= (uint8_t)value; 3498 pci_write_config_byte(pdev, where, 3499 u8val); 3500 } 3501 } 3502 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3503 rc = pci_read_config_byte(pdev, where, &u8val); 3504 if (!rc) { 3505 u8val &= (uint8_t)(~value); 3506 pci_write_config_byte(pdev, where, 3507 u8val); 3508 } 3509 } 3510 } 3511 if (count == sizeof(uint16_t)) { 3512 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3513 goto error_out; 3514 if (where % sizeof(uint16_t)) 3515 goto error_out; 3516 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3517 pci_write_config_word(pdev, where, 3518 (uint16_t)value); 3519 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3520 rc = pci_read_config_word(pdev, where, &u16val); 3521 if (!rc) { 3522 u16val |= (uint16_t)value; 3523 pci_write_config_word(pdev, where, 3524 u16val); 3525 } 3526 } 3527 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3528 rc = pci_read_config_word(pdev, where, &u16val); 3529 if (!rc) { 3530 u16val &= (uint16_t)(~value); 3531 pci_write_config_word(pdev, where, 3532 u16val); 3533 } 3534 } 3535 } 3536 if (count == sizeof(uint32_t)) { 3537 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3538 goto error_out; 3539 if (where % sizeof(uint32_t)) 3540 goto error_out; 3541 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3542 pci_write_config_dword(pdev, where, value); 3543 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3544 rc = pci_read_config_dword(pdev, where, 3545 &u32val); 3546 if (!rc) { 3547 u32val |= value; 3548 pci_write_config_dword(pdev, where, 3549 u32val); 3550 } 3551 } 3552 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3553 rc = pci_read_config_dword(pdev, where, 3554 &u32val); 3555 if (!rc) { 3556 u32val &= ~value; 3557 pci_write_config_dword(pdev, where, 3558 u32val); 3559 } 3560 } 3561 } 3562 } else 3563 /* All other opecodes are illegal for now */ 3564 goto error_out; 3565 3566 return nbytes; 3567 error_out: 3568 memset(&idiag, 0, sizeof(idiag)); 3569 return -EINVAL; 3570 } 3571 3572 /** 3573 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 3574 * @file: The file pointer to read from. 3575 * @buf: The buffer to copy the data to. 3576 * @nbytes: The number of bytes to read. 3577 * @ppos: The position in the file to start reading from. 3578 * 3579 * Description: 3580 * This routine reads data from the @phba pci bar memory mapped space 3581 * according to the idiag command, and copies to user @buf. 3582 * 3583 * Returns: 3584 * This function returns the amount of data that was read (this could be less 3585 * than @nbytes if the end of the file was reached) or a negative error value. 3586 **/ 3587 static ssize_t 3588 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 3589 loff_t *ppos) 3590 { 3591 struct lpfc_debug *debug = file->private_data; 3592 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3593 int offset_label, offset, offset_run, len = 0, index; 3594 int bar_num, acc_range, bar_size; 3595 char *pbuffer; 3596 void __iomem *mem_mapped_bar; 3597 uint32_t if_type; 3598 struct pci_dev *pdev; 3599 uint32_t u32val; 3600 3601 pdev = phba->pcidev; 3602 if (!pdev) 3603 return 0; 3604 3605 /* This is a user read operation */ 3606 debug->op = LPFC_IDIAG_OP_RD; 3607 3608 if (!debug->buffer) 3609 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 3610 if (!debug->buffer) 3611 return 0; 3612 pbuffer = debug->buffer; 3613 3614 if (*ppos) 3615 return 0; 3616 3617 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3618 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3619 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3620 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3621 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3622 } else 3623 return 0; 3624 3625 if (acc_range == 0) 3626 return 0; 3627 3628 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3629 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3630 if (bar_num == IDIAG_BARACC_BAR_0) 3631 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3632 else if (bar_num == IDIAG_BARACC_BAR_1) 3633 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3634 else if (bar_num == IDIAG_BARACC_BAR_2) 3635 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3636 else 3637 return 0; 3638 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3639 if (bar_num == IDIAG_BARACC_BAR_0) 3640 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3641 else 3642 return 0; 3643 } else 3644 return 0; 3645 3646 /* Read single PCI bar space register */ 3647 if (acc_range == SINGLE_WORD) { 3648 offset_run = offset; 3649 u32val = readl(mem_mapped_bar + offset_run); 3650 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3651 "%05x: %08x\n", offset_run, u32val); 3652 } else 3653 goto baracc_browse; 3654 3655 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3656 3657 baracc_browse: 3658 3659 /* Browse all PCI bar space registers */ 3660 offset_label = idiag.offset.last_rd; 3661 offset_run = offset_label; 3662 3663 /* Read PCI bar memory mapped space */ 3664 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3665 "%05x: ", offset_label); 3666 index = LPFC_PCI_BAR_RD_SIZE; 3667 while (index > 0) { 3668 u32val = readl(mem_mapped_bar + offset_run); 3669 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3670 "%08x ", u32val); 3671 offset_run += sizeof(uint32_t); 3672 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3673 if (offset_run >= bar_size) { 3674 len += scnprintf(pbuffer+len, 3675 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3676 break; 3677 } 3678 } else { 3679 if (offset_run >= offset + 3680 (acc_range * sizeof(uint32_t))) { 3681 len += scnprintf(pbuffer+len, 3682 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3683 break; 3684 } 3685 } 3686 index -= sizeof(uint32_t); 3687 if (!index) 3688 len += scnprintf(pbuffer+len, 3689 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3690 else if (!(index % (8 * sizeof(uint32_t)))) { 3691 offset_label += (8 * sizeof(uint32_t)); 3692 len += scnprintf(pbuffer+len, 3693 LPFC_PCI_BAR_RD_BUF_SIZE-len, 3694 "\n%05x: ", offset_label); 3695 } 3696 } 3697 3698 /* Set up the offset for next portion of pci bar read */ 3699 if (index == 0) { 3700 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 3701 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3702 if (idiag.offset.last_rd >= bar_size) 3703 idiag.offset.last_rd = 0; 3704 } else { 3705 if (offset_run >= offset + 3706 (acc_range * sizeof(uint32_t))) 3707 idiag.offset.last_rd = offset; 3708 } 3709 } else { 3710 if (acc_range == LPFC_PCI_BAR_BROWSE) 3711 idiag.offset.last_rd = 0; 3712 else 3713 idiag.offset.last_rd = offset; 3714 } 3715 3716 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3717 } 3718 3719 /** 3720 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 3721 * @file: The file pointer to read from. 3722 * @buf: The buffer to copy the user data from. 3723 * @nbytes: The number of bytes to get. 3724 * @ppos: The position in the file to start reading from. 3725 * 3726 * This routine get the debugfs idiag command struct from user space and 3727 * then perform the syntax check for PCI bar memory mapped space read or 3728 * write command accordingly. In the case of PCI bar memory mapped space 3729 * read command, it sets up the command in the idiag command struct for 3730 * the debugfs read operation. In the case of PCI bar memorpy mapped space 3731 * write operation, it executes the write operation into the PCI bar memory 3732 * mapped space accordingly. 3733 * 3734 * It returns the @nbytges passing in from debugfs user space when successful. 3735 * In case of error conditions, it returns proper error code back to the user 3736 * space. 3737 */ 3738 static ssize_t 3739 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 3740 size_t nbytes, loff_t *ppos) 3741 { 3742 struct lpfc_debug *debug = file->private_data; 3743 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3744 uint32_t bar_num, bar_size, offset, value, acc_range; 3745 struct pci_dev *pdev; 3746 void __iomem *mem_mapped_bar; 3747 uint32_t if_type; 3748 uint32_t u32val; 3749 int rc; 3750 3751 pdev = phba->pcidev; 3752 if (!pdev) 3753 return -EFAULT; 3754 3755 /* This is a user write operation */ 3756 debug->op = LPFC_IDIAG_OP_WR; 3757 3758 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3759 if (rc < 0) 3760 return rc; 3761 3762 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3763 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3764 3765 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3766 if ((bar_num != IDIAG_BARACC_BAR_0) && 3767 (bar_num != IDIAG_BARACC_BAR_1) && 3768 (bar_num != IDIAG_BARACC_BAR_2)) 3769 goto error_out; 3770 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3771 if (bar_num != IDIAG_BARACC_BAR_0) 3772 goto error_out; 3773 } else 3774 goto error_out; 3775 3776 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3777 if (bar_num == IDIAG_BARACC_BAR_0) { 3778 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3779 LPFC_PCI_IF0_BAR0_SIZE; 3780 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3781 } else if (bar_num == IDIAG_BARACC_BAR_1) { 3782 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3783 LPFC_PCI_IF0_BAR1_SIZE; 3784 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3785 } else if (bar_num == IDIAG_BARACC_BAR_2) { 3786 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3787 LPFC_PCI_IF0_BAR2_SIZE; 3788 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3789 } else 3790 goto error_out; 3791 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3792 if (bar_num == IDIAG_BARACC_BAR_0) { 3793 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3794 LPFC_PCI_IF2_BAR0_SIZE; 3795 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3796 } else 3797 goto error_out; 3798 } else 3799 goto error_out; 3800 3801 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3802 if (offset % sizeof(uint32_t)) 3803 goto error_out; 3804 3805 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3806 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3807 /* Sanity check on PCI config read command line arguments */ 3808 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3809 goto error_out; 3810 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3811 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3812 if (offset > bar_size - sizeof(uint32_t)) 3813 goto error_out; 3814 /* Starting offset to browse */ 3815 idiag.offset.last_rd = offset; 3816 } else if (acc_range > SINGLE_WORD) { 3817 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3818 goto error_out; 3819 /* Starting offset to browse */ 3820 idiag.offset.last_rd = offset; 3821 } else if (acc_range != SINGLE_WORD) 3822 goto error_out; 3823 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3824 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3825 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3826 /* Sanity check on PCI bar write command line arguments */ 3827 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3828 goto error_out; 3829 /* Write command to PCI bar space, read-modify-write */ 3830 acc_range = SINGLE_WORD; 3831 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3832 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3833 writel(value, mem_mapped_bar + offset); 3834 readl(mem_mapped_bar + offset); 3835 } 3836 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3837 u32val = readl(mem_mapped_bar + offset); 3838 u32val |= value; 3839 writel(u32val, mem_mapped_bar + offset); 3840 readl(mem_mapped_bar + offset); 3841 } 3842 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3843 u32val = readl(mem_mapped_bar + offset); 3844 u32val &= ~value; 3845 writel(u32val, mem_mapped_bar + offset); 3846 readl(mem_mapped_bar + offset); 3847 } 3848 } else 3849 /* All other opecodes are illegal for now */ 3850 goto error_out; 3851 3852 return nbytes; 3853 error_out: 3854 memset(&idiag, 0, sizeof(idiag)); 3855 return -EINVAL; 3856 } 3857 3858 static int 3859 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3860 char *pbuffer, int len) 3861 { 3862 if (!qp) 3863 return len; 3864 3865 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3866 "\t\t%s WQ info: ", wqtype); 3867 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3868 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3869 qp->assoc_qid, qp->q_cnt_1, 3870 (unsigned long long)qp->q_cnt_4); 3871 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3872 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3873 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]", 3874 qp->queue_id, qp->entry_count, 3875 qp->entry_size, qp->host_index, 3876 qp->hba_index, qp->notify_interval); 3877 len += scnprintf(pbuffer + len, 3878 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3879 return len; 3880 } 3881 3882 static int 3883 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3884 int *len, int max_cnt, int cq_id) 3885 { 3886 struct lpfc_queue *qp; 3887 int qidx; 3888 3889 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 3890 qp = phba->sli4_hba.hdwq[qidx].io_wq; 3891 if (qp->assoc_qid != cq_id) 3892 continue; 3893 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3894 if (*len >= max_cnt) 3895 return 1; 3896 } 3897 return 0; 3898 } 3899 3900 static int 3901 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3902 char *pbuffer, int len) 3903 { 3904 if (!qp) 3905 return len; 3906 3907 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3908 "\t%s CQ info: ", cqtype); 3909 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3910 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3911 "xabt:x%x wq:x%llx]\n", 3912 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3913 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3914 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3915 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3916 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d]", 3917 qp->queue_id, qp->entry_count, 3918 qp->entry_size, qp->host_index, 3919 qp->notify_interval, qp->max_proc_limit); 3920 3921 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3922 "\n"); 3923 3924 return len; 3925 } 3926 3927 static int 3928 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3929 char *rqtype, char *pbuffer, int len) 3930 { 3931 if (!qp || !datqp) 3932 return len; 3933 3934 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3935 "\t\t%s RQ info: ", rqtype); 3936 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3937 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3938 "posted:x%x rcv:x%llx]\n", 3939 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3940 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3941 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3942 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3943 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3944 qp->queue_id, qp->entry_count, qp->entry_size, 3945 qp->host_index, qp->hba_index, qp->notify_interval); 3946 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3947 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3948 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3949 datqp->queue_id, datqp->entry_count, 3950 datqp->entry_size, datqp->host_index, 3951 datqp->hba_index, datqp->notify_interval); 3952 return len; 3953 } 3954 3955 static int 3956 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3957 int *len, int max_cnt, int eqidx, int eq_id) 3958 { 3959 struct lpfc_queue *qp; 3960 int rc; 3961 3962 qp = phba->sli4_hba.hdwq[eqidx].io_cq; 3963 3964 *len = __lpfc_idiag_print_cq(qp, "IO", pbuffer, *len); 3965 3966 /* Reset max counter */ 3967 qp->CQ_max_cqe = 0; 3968 3969 if (*len >= max_cnt) 3970 return 1; 3971 3972 rc = lpfc_idiag_wqs_for_cq(phba, "IO", pbuffer, len, 3973 max_cnt, qp->queue_id); 3974 if (rc) 3975 return 1; 3976 3977 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) { 3978 /* NVMET CQset */ 3979 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 3980 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 3981 3982 /* Reset max counter */ 3983 qp->CQ_max_cqe = 0; 3984 3985 if (*len >= max_cnt) 3986 return 1; 3987 3988 /* RQ header */ 3989 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 3990 *len = __lpfc_idiag_print_rqpair(qp, 3991 phba->sli4_hba.nvmet_mrq_data[eqidx], 3992 "NVMET MRQ", pbuffer, *len); 3993 3994 if (*len >= max_cnt) 3995 return 1; 3996 } 3997 3998 return 0; 3999 } 4000 4001 static int 4002 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 4003 char *pbuffer, int len) 4004 { 4005 if (!qp) 4006 return len; 4007 4008 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4009 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 4010 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n", 4011 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 4012 (unsigned long long)qp->q_cnt_4, qp->q_mode); 4013 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4014 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 4015 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]", 4016 qp->queue_id, qp->entry_count, qp->entry_size, 4017 qp->host_index, qp->notify_interval, 4018 qp->max_proc_limit, qp->chann); 4019 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4020 "\n"); 4021 4022 return len; 4023 } 4024 4025 /** 4026 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 4027 * @file: The file pointer to read from. 4028 * @buf: The buffer to copy the data to. 4029 * @nbytes: The number of bytes to read. 4030 * @ppos: The position in the file to start reading from. 4031 * 4032 * Description: 4033 * This routine reads data from the @phba SLI4 PCI function queue information, 4034 * and copies to user @buf. 4035 * This routine only returns 1 EQs worth of information. It remembers the last 4036 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 4037 * retrieve all EQs allocated for the phba. 4038 * 4039 * Returns: 4040 * This function returns the amount of data that was read (this could be less 4041 * than @nbytes if the end of the file was reached) or a negative error value. 4042 **/ 4043 static ssize_t 4044 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 4045 loff_t *ppos) 4046 { 4047 struct lpfc_debug *debug = file->private_data; 4048 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4049 char *pbuffer; 4050 int max_cnt, rc, x, len = 0; 4051 struct lpfc_queue *qp = NULL; 4052 4053 if (!debug->buffer) 4054 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 4055 if (!debug->buffer) 4056 return 0; 4057 pbuffer = debug->buffer; 4058 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 4059 4060 if (*ppos) 4061 return 0; 4062 4063 spin_lock_irq(&phba->hbalock); 4064 4065 /* Fast-path event queue */ 4066 if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) { 4067 4068 x = phba->lpfc_idiag_last_eq; 4069 phba->lpfc_idiag_last_eq++; 4070 if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue) 4071 phba->lpfc_idiag_last_eq = 0; 4072 4073 len += scnprintf(pbuffer + len, 4074 LPFC_QUE_INFO_GET_BUF_SIZE - len, 4075 "HDWQ %d out of %d HBA HDWQs\n", 4076 x, phba->cfg_hdw_queue); 4077 4078 /* Fast-path EQ */ 4079 qp = phba->sli4_hba.hdwq[x].hba_eq; 4080 if (!qp) 4081 goto out; 4082 4083 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 4084 4085 /* Reset max counter */ 4086 qp->EQ_max_eqe = 0; 4087 4088 if (len >= max_cnt) 4089 goto too_big; 4090 4091 /* will dump both fcp and nvme cqs/wqs for the eq */ 4092 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 4093 max_cnt, x, qp->queue_id); 4094 if (rc) 4095 goto too_big; 4096 4097 /* Only EQ 0 has slow path CQs configured */ 4098 if (x) 4099 goto out; 4100 4101 /* Slow-path mailbox CQ */ 4102 qp = phba->sli4_hba.mbx_cq; 4103 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 4104 if (len >= max_cnt) 4105 goto too_big; 4106 4107 /* Slow-path MBOX MQ */ 4108 qp = phba->sli4_hba.mbx_wq; 4109 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 4110 if (len >= max_cnt) 4111 goto too_big; 4112 4113 /* Slow-path ELS response CQ */ 4114 qp = phba->sli4_hba.els_cq; 4115 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 4116 /* Reset max counter */ 4117 if (qp) 4118 qp->CQ_max_cqe = 0; 4119 if (len >= max_cnt) 4120 goto too_big; 4121 4122 /* Slow-path ELS WQ */ 4123 qp = phba->sli4_hba.els_wq; 4124 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 4125 if (len >= max_cnt) 4126 goto too_big; 4127 4128 qp = phba->sli4_hba.hdr_rq; 4129 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 4130 "ELS RQpair", pbuffer, len); 4131 if (len >= max_cnt) 4132 goto too_big; 4133 4134 /* Slow-path NVME LS response CQ */ 4135 qp = phba->sli4_hba.nvmels_cq; 4136 len = __lpfc_idiag_print_cq(qp, "NVME LS", 4137 pbuffer, len); 4138 /* Reset max counter */ 4139 if (qp) 4140 qp->CQ_max_cqe = 0; 4141 if (len >= max_cnt) 4142 goto too_big; 4143 4144 /* Slow-path NVME LS WQ */ 4145 qp = phba->sli4_hba.nvmels_wq; 4146 len = __lpfc_idiag_print_wq(qp, "NVME LS", 4147 pbuffer, len); 4148 if (len >= max_cnt) 4149 goto too_big; 4150 4151 goto out; 4152 } 4153 4154 spin_unlock_irq(&phba->hbalock); 4155 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4156 4157 too_big: 4158 len += scnprintf(pbuffer + len, 4159 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 4160 out: 4161 spin_unlock_irq(&phba->hbalock); 4162 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4163 } 4164 4165 /** 4166 * lpfc_idiag_que_param_check - queue access command parameter sanity check 4167 * @q: The pointer to queue structure. 4168 * @index: The index into a queue entry. 4169 * @count: The number of queue entries to access. 4170 * 4171 * Description: 4172 * The routine performs sanity check on device queue access method commands. 4173 * 4174 * Returns: 4175 * This function returns -EINVAL when fails the sanity check, otherwise, it 4176 * returns 0. 4177 **/ 4178 static int 4179 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 4180 { 4181 /* Only support single entry read or browsing */ 4182 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 4183 return -EINVAL; 4184 if (index > q->entry_count - 1) 4185 return -EINVAL; 4186 return 0; 4187 } 4188 4189 /** 4190 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 4191 * @pbuffer: The pointer to buffer to copy the read data into. 4192 * @pque: The pointer to the queue to be read. 4193 * @index: The index into the queue entry. 4194 * 4195 * Description: 4196 * This routine reads out a single entry from the given queue's index location 4197 * and copies it into the buffer provided. 4198 * 4199 * Returns: 4200 * This function returns 0 when it fails, otherwise, it returns the length of 4201 * the data read into the buffer provided. 4202 **/ 4203 static int 4204 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 4205 uint32_t index) 4206 { 4207 int offset, esize; 4208 uint32_t *pentry; 4209 4210 if (!pbuffer || !pque) 4211 return 0; 4212 4213 esize = pque->entry_size; 4214 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4215 "QE-INDEX[%04d]:\n", index); 4216 4217 offset = 0; 4218 pentry = lpfc_sli4_qe(pque, index); 4219 while (esize > 0) { 4220 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4221 "%08x ", *pentry); 4222 pentry++; 4223 offset += sizeof(uint32_t); 4224 esize -= sizeof(uint32_t); 4225 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 4226 len += scnprintf(pbuffer+len, 4227 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4228 } 4229 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4230 4231 return len; 4232 } 4233 4234 /** 4235 * lpfc_idiag_queacc_read - idiag debugfs read port queue 4236 * @file: The file pointer to read from. 4237 * @buf: The buffer to copy the data to. 4238 * @nbytes: The number of bytes to read. 4239 * @ppos: The position in the file to start reading from. 4240 * 4241 * Description: 4242 * This routine reads data from the @phba device queue memory according to the 4243 * idiag command, and copies to user @buf. Depending on the queue dump read 4244 * command setup, it does either a single queue entry read or browing through 4245 * all entries of the queue. 4246 * 4247 * Returns: 4248 * This function returns the amount of data that was read (this could be less 4249 * than @nbytes if the end of the file was reached) or a negative error value. 4250 **/ 4251 static ssize_t 4252 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 4253 loff_t *ppos) 4254 { 4255 struct lpfc_debug *debug = file->private_data; 4256 uint32_t last_index, index, count; 4257 struct lpfc_queue *pque = NULL; 4258 char *pbuffer; 4259 int len = 0; 4260 4261 /* This is a user read operation */ 4262 debug->op = LPFC_IDIAG_OP_RD; 4263 4264 if (!debug->buffer) 4265 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 4266 if (!debug->buffer) 4267 return 0; 4268 pbuffer = debug->buffer; 4269 4270 if (*ppos) 4271 return 0; 4272 4273 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4274 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4275 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4276 pque = (struct lpfc_queue *)idiag.ptr_private; 4277 } else 4278 return 0; 4279 4280 /* Browse the queue starting from index */ 4281 if (count == LPFC_QUE_ACC_BROWSE) 4282 goto que_browse; 4283 4284 /* Read a single entry from the queue */ 4285 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4286 4287 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4288 4289 que_browse: 4290 4291 /* Browse all entries from the queue */ 4292 last_index = idiag.offset.last_rd; 4293 index = last_index; 4294 4295 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 4296 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4297 index++; 4298 if (index > pque->entry_count - 1) 4299 break; 4300 } 4301 4302 /* Set up the offset for next portion of pci cfg read */ 4303 if (index > pque->entry_count - 1) 4304 index = 0; 4305 idiag.offset.last_rd = index; 4306 4307 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4308 } 4309 4310 /** 4311 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 4312 * @file: The file pointer to read from. 4313 * @buf: The buffer to copy the user data from. 4314 * @nbytes: The number of bytes to get. 4315 * @ppos: The position in the file to start reading from. 4316 * 4317 * This routine get the debugfs idiag command struct from user space and then 4318 * perform the syntax check for port queue read (dump) or write (set) command 4319 * accordingly. In the case of port queue read command, it sets up the command 4320 * in the idiag command struct for the following debugfs read operation. In 4321 * the case of port queue write operation, it executes the write operation 4322 * into the port queue entry accordingly. 4323 * 4324 * It returns the @nbytges passing in from debugfs user space when successful. 4325 * In case of error conditions, it returns proper error code back to the user 4326 * space. 4327 **/ 4328 static ssize_t 4329 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 4330 size_t nbytes, loff_t *ppos) 4331 { 4332 struct lpfc_debug *debug = file->private_data; 4333 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4334 uint32_t qidx, quetp, queid, index, count, offset, value; 4335 uint32_t *pentry; 4336 struct lpfc_queue *pque, *qp; 4337 int rc; 4338 4339 /* This is a user write operation */ 4340 debug->op = LPFC_IDIAG_OP_WR; 4341 4342 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4343 if (rc < 0) 4344 return rc; 4345 4346 /* Get and sanity check on command feilds */ 4347 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 4348 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 4349 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4350 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4351 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 4352 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 4353 4354 /* Sanity check on command line arguments */ 4355 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4356 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4357 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4358 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 4359 goto error_out; 4360 if (count != 1) 4361 goto error_out; 4362 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4363 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 4364 goto error_out; 4365 } else 4366 goto error_out; 4367 4368 switch (quetp) { 4369 case LPFC_IDIAG_EQ: 4370 /* HBA event queue */ 4371 if (phba->sli4_hba.hdwq) { 4372 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4373 qp = phba->sli4_hba.hdwq[qidx].hba_eq; 4374 if (qp && qp->queue_id == queid) { 4375 /* Sanity check */ 4376 rc = lpfc_idiag_que_param_check(qp, 4377 index, count); 4378 if (rc) 4379 goto error_out; 4380 idiag.ptr_private = qp; 4381 goto pass_check; 4382 } 4383 } 4384 } 4385 goto error_out; 4386 break; 4387 case LPFC_IDIAG_CQ: 4388 /* MBX complete queue */ 4389 if (phba->sli4_hba.mbx_cq && 4390 phba->sli4_hba.mbx_cq->queue_id == queid) { 4391 /* Sanity check */ 4392 rc = lpfc_idiag_que_param_check( 4393 phba->sli4_hba.mbx_cq, index, count); 4394 if (rc) 4395 goto error_out; 4396 idiag.ptr_private = phba->sli4_hba.mbx_cq; 4397 goto pass_check; 4398 } 4399 /* ELS complete queue */ 4400 if (phba->sli4_hba.els_cq && 4401 phba->sli4_hba.els_cq->queue_id == queid) { 4402 /* Sanity check */ 4403 rc = lpfc_idiag_que_param_check( 4404 phba->sli4_hba.els_cq, index, count); 4405 if (rc) 4406 goto error_out; 4407 idiag.ptr_private = phba->sli4_hba.els_cq; 4408 goto pass_check; 4409 } 4410 /* NVME LS complete queue */ 4411 if (phba->sli4_hba.nvmels_cq && 4412 phba->sli4_hba.nvmels_cq->queue_id == queid) { 4413 /* Sanity check */ 4414 rc = lpfc_idiag_que_param_check( 4415 phba->sli4_hba.nvmels_cq, index, count); 4416 if (rc) 4417 goto error_out; 4418 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 4419 goto pass_check; 4420 } 4421 /* FCP complete queue */ 4422 if (phba->sli4_hba.hdwq) { 4423 for (qidx = 0; qidx < phba->cfg_hdw_queue; 4424 qidx++) { 4425 qp = phba->sli4_hba.hdwq[qidx].io_cq; 4426 if (qp && qp->queue_id == queid) { 4427 /* Sanity check */ 4428 rc = lpfc_idiag_que_param_check( 4429 qp, index, count); 4430 if (rc) 4431 goto error_out; 4432 idiag.ptr_private = qp; 4433 goto pass_check; 4434 } 4435 } 4436 } 4437 goto error_out; 4438 break; 4439 case LPFC_IDIAG_MQ: 4440 /* MBX work queue */ 4441 if (phba->sli4_hba.mbx_wq && 4442 phba->sli4_hba.mbx_wq->queue_id == queid) { 4443 /* Sanity check */ 4444 rc = lpfc_idiag_que_param_check( 4445 phba->sli4_hba.mbx_wq, index, count); 4446 if (rc) 4447 goto error_out; 4448 idiag.ptr_private = phba->sli4_hba.mbx_wq; 4449 goto pass_check; 4450 } 4451 goto error_out; 4452 break; 4453 case LPFC_IDIAG_WQ: 4454 /* ELS work queue */ 4455 if (phba->sli4_hba.els_wq && 4456 phba->sli4_hba.els_wq->queue_id == queid) { 4457 /* Sanity check */ 4458 rc = lpfc_idiag_que_param_check( 4459 phba->sli4_hba.els_wq, index, count); 4460 if (rc) 4461 goto error_out; 4462 idiag.ptr_private = phba->sli4_hba.els_wq; 4463 goto pass_check; 4464 } 4465 /* NVME LS work queue */ 4466 if (phba->sli4_hba.nvmels_wq && 4467 phba->sli4_hba.nvmels_wq->queue_id == queid) { 4468 /* Sanity check */ 4469 rc = lpfc_idiag_que_param_check( 4470 phba->sli4_hba.nvmels_wq, index, count); 4471 if (rc) 4472 goto error_out; 4473 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 4474 goto pass_check; 4475 } 4476 4477 if (phba->sli4_hba.hdwq) { 4478 /* FCP/SCSI work queue */ 4479 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4480 qp = phba->sli4_hba.hdwq[qidx].io_wq; 4481 if (qp && qp->queue_id == queid) { 4482 /* Sanity check */ 4483 rc = lpfc_idiag_que_param_check( 4484 qp, index, count); 4485 if (rc) 4486 goto error_out; 4487 idiag.ptr_private = qp; 4488 goto pass_check; 4489 } 4490 } 4491 } 4492 4493 goto error_out; 4494 break; 4495 case LPFC_IDIAG_RQ: 4496 /* HDR queue */ 4497 if (phba->sli4_hba.hdr_rq && 4498 phba->sli4_hba.hdr_rq->queue_id == queid) { 4499 /* Sanity check */ 4500 rc = lpfc_idiag_que_param_check( 4501 phba->sli4_hba.hdr_rq, index, count); 4502 if (rc) 4503 goto error_out; 4504 idiag.ptr_private = phba->sli4_hba.hdr_rq; 4505 goto pass_check; 4506 } 4507 /* DAT queue */ 4508 if (phba->sli4_hba.dat_rq && 4509 phba->sli4_hba.dat_rq->queue_id == queid) { 4510 /* Sanity check */ 4511 rc = lpfc_idiag_que_param_check( 4512 phba->sli4_hba.dat_rq, index, count); 4513 if (rc) 4514 goto error_out; 4515 idiag.ptr_private = phba->sli4_hba.dat_rq; 4516 goto pass_check; 4517 } 4518 goto error_out; 4519 break; 4520 default: 4521 goto error_out; 4522 break; 4523 } 4524 4525 pass_check: 4526 4527 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4528 if (count == LPFC_QUE_ACC_BROWSE) 4529 idiag.offset.last_rd = index; 4530 } 4531 4532 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4533 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4534 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4535 /* Additional sanity checks on write operation */ 4536 pque = (struct lpfc_queue *)idiag.ptr_private; 4537 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 4538 goto error_out; 4539 pentry = lpfc_sli4_qe(pque, index); 4540 pentry += offset; 4541 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 4542 *pentry = value; 4543 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 4544 *pentry |= value; 4545 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 4546 *pentry &= ~value; 4547 } 4548 return nbytes; 4549 4550 error_out: 4551 /* Clean out command structure on command error out */ 4552 memset(&idiag, 0, sizeof(idiag)); 4553 return -EINVAL; 4554 } 4555 4556 /** 4557 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 4558 * @phba: The pointer to hba structure. 4559 * @pbuffer: The pointer to the buffer to copy the data to. 4560 * @len: The length of bytes to copied. 4561 * @drbregid: The id to doorbell registers. 4562 * 4563 * Description: 4564 * This routine reads a doorbell register and copies its content to the 4565 * user buffer pointed to by @pbuffer. 4566 * 4567 * Returns: 4568 * This function returns the amount of data that was copied into @pbuffer. 4569 **/ 4570 static int 4571 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4572 int len, uint32_t drbregid) 4573 { 4574 4575 if (!pbuffer) 4576 return 0; 4577 4578 switch (drbregid) { 4579 case LPFC_DRB_EQ: 4580 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len, 4581 "EQ-DRB-REG: 0x%08x\n", 4582 readl(phba->sli4_hba.EQDBregaddr)); 4583 break; 4584 case LPFC_DRB_CQ: 4585 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len, 4586 "CQ-DRB-REG: 0x%08x\n", 4587 readl(phba->sli4_hba.CQDBregaddr)); 4588 break; 4589 case LPFC_DRB_MQ: 4590 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4591 "MQ-DRB-REG: 0x%08x\n", 4592 readl(phba->sli4_hba.MQDBregaddr)); 4593 break; 4594 case LPFC_DRB_WQ: 4595 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4596 "WQ-DRB-REG: 0x%08x\n", 4597 readl(phba->sli4_hba.WQDBregaddr)); 4598 break; 4599 case LPFC_DRB_RQ: 4600 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4601 "RQ-DRB-REG: 0x%08x\n", 4602 readl(phba->sli4_hba.RQDBregaddr)); 4603 break; 4604 default: 4605 break; 4606 } 4607 4608 return len; 4609 } 4610 4611 /** 4612 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 4613 * @file: The file pointer to read from. 4614 * @buf: The buffer to copy the data to. 4615 * @nbytes: The number of bytes to read. 4616 * @ppos: The position in the file to start reading from. 4617 * 4618 * Description: 4619 * This routine reads data from the @phba device doorbell register according 4620 * to the idiag command, and copies to user @buf. Depending on the doorbell 4621 * register read command setup, it does either a single doorbell register 4622 * read or dump all doorbell registers. 4623 * 4624 * Returns: 4625 * This function returns the amount of data that was read (this could be less 4626 * than @nbytes if the end of the file was reached) or a negative error value. 4627 **/ 4628 static ssize_t 4629 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 4630 loff_t *ppos) 4631 { 4632 struct lpfc_debug *debug = file->private_data; 4633 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4634 uint32_t drb_reg_id, i; 4635 char *pbuffer; 4636 int len = 0; 4637 4638 /* This is a user read operation */ 4639 debug->op = LPFC_IDIAG_OP_RD; 4640 4641 if (!debug->buffer) 4642 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 4643 if (!debug->buffer) 4644 return 0; 4645 pbuffer = debug->buffer; 4646 4647 if (*ppos) 4648 return 0; 4649 4650 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 4651 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4652 else 4653 return 0; 4654 4655 if (drb_reg_id == LPFC_DRB_ACC_ALL) 4656 for (i = 1; i <= LPFC_DRB_MAX; i++) 4657 len = lpfc_idiag_drbacc_read_reg(phba, 4658 pbuffer, len, i); 4659 else 4660 len = lpfc_idiag_drbacc_read_reg(phba, 4661 pbuffer, len, drb_reg_id); 4662 4663 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4664 } 4665 4666 /** 4667 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 4668 * @file: The file pointer to read from. 4669 * @buf: The buffer to copy the user data from. 4670 * @nbytes: The number of bytes to get. 4671 * @ppos: The position in the file to start reading from. 4672 * 4673 * This routine get the debugfs idiag command struct from user space and then 4674 * perform the syntax check for port doorbell register read (dump) or write 4675 * (set) command accordingly. In the case of port queue read command, it sets 4676 * up the command in the idiag command struct for the following debugfs read 4677 * operation. In the case of port doorbell register write operation, it 4678 * executes the write operation into the port doorbell register accordingly. 4679 * 4680 * It returns the @nbytges passing in from debugfs user space when successful. 4681 * In case of error conditions, it returns proper error code back to the user 4682 * space. 4683 **/ 4684 static ssize_t 4685 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 4686 size_t nbytes, loff_t *ppos) 4687 { 4688 struct lpfc_debug *debug = file->private_data; 4689 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4690 uint32_t drb_reg_id, value, reg_val = 0; 4691 void __iomem *drb_reg; 4692 int rc; 4693 4694 /* This is a user write operation */ 4695 debug->op = LPFC_IDIAG_OP_WR; 4696 4697 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4698 if (rc < 0) 4699 return rc; 4700 4701 /* Sanity check on command line arguments */ 4702 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4703 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4704 4705 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4706 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4707 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4708 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4709 goto error_out; 4710 if (drb_reg_id > LPFC_DRB_MAX) 4711 goto error_out; 4712 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4713 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4714 goto error_out; 4715 if ((drb_reg_id > LPFC_DRB_MAX) && 4716 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4717 goto error_out; 4718 } else 4719 goto error_out; 4720 4721 /* Perform the write access operation */ 4722 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4723 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4724 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4725 switch (drb_reg_id) { 4726 case LPFC_DRB_EQ: 4727 drb_reg = phba->sli4_hba.EQDBregaddr; 4728 break; 4729 case LPFC_DRB_CQ: 4730 drb_reg = phba->sli4_hba.CQDBregaddr; 4731 break; 4732 case LPFC_DRB_MQ: 4733 drb_reg = phba->sli4_hba.MQDBregaddr; 4734 break; 4735 case LPFC_DRB_WQ: 4736 drb_reg = phba->sli4_hba.WQDBregaddr; 4737 break; 4738 case LPFC_DRB_RQ: 4739 drb_reg = phba->sli4_hba.RQDBregaddr; 4740 break; 4741 default: 4742 goto error_out; 4743 } 4744 4745 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4746 reg_val = value; 4747 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4748 reg_val = readl(drb_reg); 4749 reg_val |= value; 4750 } 4751 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4752 reg_val = readl(drb_reg); 4753 reg_val &= ~value; 4754 } 4755 writel(reg_val, drb_reg); 4756 readl(drb_reg); /* flush */ 4757 } 4758 return nbytes; 4759 4760 error_out: 4761 /* Clean out command structure on command error out */ 4762 memset(&idiag, 0, sizeof(idiag)); 4763 return -EINVAL; 4764 } 4765 4766 /** 4767 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4768 * @phba: The pointer to hba structure. 4769 * @pbuffer: The pointer to the buffer to copy the data to. 4770 * @len: The length of bytes to copied. 4771 * @drbregid: The id to doorbell registers. 4772 * 4773 * Description: 4774 * This routine reads a control register and copies its content to the 4775 * user buffer pointed to by @pbuffer. 4776 * 4777 * Returns: 4778 * This function returns the amount of data that was copied into @pbuffer. 4779 **/ 4780 static int 4781 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4782 int len, uint32_t ctlregid) 4783 { 4784 4785 if (!pbuffer) 4786 return 0; 4787 4788 switch (ctlregid) { 4789 case LPFC_CTL_PORT_SEM: 4790 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4791 "Port SemReg: 0x%08x\n", 4792 readl(phba->sli4_hba.conf_regs_memmap_p + 4793 LPFC_CTL_PORT_SEM_OFFSET)); 4794 break; 4795 case LPFC_CTL_PORT_STA: 4796 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4797 "Port StaReg: 0x%08x\n", 4798 readl(phba->sli4_hba.conf_regs_memmap_p + 4799 LPFC_CTL_PORT_STA_OFFSET)); 4800 break; 4801 case LPFC_CTL_PORT_CTL: 4802 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4803 "Port CtlReg: 0x%08x\n", 4804 readl(phba->sli4_hba.conf_regs_memmap_p + 4805 LPFC_CTL_PORT_CTL_OFFSET)); 4806 break; 4807 case LPFC_CTL_PORT_ER1: 4808 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4809 "Port Er1Reg: 0x%08x\n", 4810 readl(phba->sli4_hba.conf_regs_memmap_p + 4811 LPFC_CTL_PORT_ER1_OFFSET)); 4812 break; 4813 case LPFC_CTL_PORT_ER2: 4814 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4815 "Port Er2Reg: 0x%08x\n", 4816 readl(phba->sli4_hba.conf_regs_memmap_p + 4817 LPFC_CTL_PORT_ER2_OFFSET)); 4818 break; 4819 case LPFC_CTL_PDEV_CTL: 4820 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4821 "PDev CtlReg: 0x%08x\n", 4822 readl(phba->sli4_hba.conf_regs_memmap_p + 4823 LPFC_CTL_PDEV_CTL_OFFSET)); 4824 break; 4825 default: 4826 break; 4827 } 4828 return len; 4829 } 4830 4831 /** 4832 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4833 * @file: The file pointer to read from. 4834 * @buf: The buffer to copy the data to. 4835 * @nbytes: The number of bytes to read. 4836 * @ppos: The position in the file to start reading from. 4837 * 4838 * Description: 4839 * This routine reads data from the @phba port and device registers according 4840 * to the idiag command, and copies to user @buf. 4841 * 4842 * Returns: 4843 * This function returns the amount of data that was read (this could be less 4844 * than @nbytes if the end of the file was reached) or a negative error value. 4845 **/ 4846 static ssize_t 4847 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4848 loff_t *ppos) 4849 { 4850 struct lpfc_debug *debug = file->private_data; 4851 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4852 uint32_t ctl_reg_id, i; 4853 char *pbuffer; 4854 int len = 0; 4855 4856 /* This is a user read operation */ 4857 debug->op = LPFC_IDIAG_OP_RD; 4858 4859 if (!debug->buffer) 4860 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4861 if (!debug->buffer) 4862 return 0; 4863 pbuffer = debug->buffer; 4864 4865 if (*ppos) 4866 return 0; 4867 4868 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4869 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4870 else 4871 return 0; 4872 4873 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4874 for (i = 1; i <= LPFC_CTL_MAX; i++) 4875 len = lpfc_idiag_ctlacc_read_reg(phba, 4876 pbuffer, len, i); 4877 else 4878 len = lpfc_idiag_ctlacc_read_reg(phba, 4879 pbuffer, len, ctl_reg_id); 4880 4881 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4882 } 4883 4884 /** 4885 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4886 * @file: The file pointer to read from. 4887 * @buf: The buffer to copy the user data from. 4888 * @nbytes: The number of bytes to get. 4889 * @ppos: The position in the file to start reading from. 4890 * 4891 * This routine get the debugfs idiag command struct from user space and then 4892 * perform the syntax check for port and device control register read (dump) 4893 * or write (set) command accordingly. 4894 * 4895 * It returns the @nbytges passing in from debugfs user space when successful. 4896 * In case of error conditions, it returns proper error code back to the user 4897 * space. 4898 **/ 4899 static ssize_t 4900 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4901 size_t nbytes, loff_t *ppos) 4902 { 4903 struct lpfc_debug *debug = file->private_data; 4904 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4905 uint32_t ctl_reg_id, value, reg_val = 0; 4906 void __iomem *ctl_reg; 4907 int rc; 4908 4909 /* This is a user write operation */ 4910 debug->op = LPFC_IDIAG_OP_WR; 4911 4912 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4913 if (rc < 0) 4914 return rc; 4915 4916 /* Sanity check on command line arguments */ 4917 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4918 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4919 4920 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4921 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4922 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4923 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4924 goto error_out; 4925 if (ctl_reg_id > LPFC_CTL_MAX) 4926 goto error_out; 4927 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4928 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4929 goto error_out; 4930 if ((ctl_reg_id > LPFC_CTL_MAX) && 4931 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4932 goto error_out; 4933 } else 4934 goto error_out; 4935 4936 /* Perform the write access operation */ 4937 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4938 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4939 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4940 switch (ctl_reg_id) { 4941 case LPFC_CTL_PORT_SEM: 4942 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4943 LPFC_CTL_PORT_SEM_OFFSET; 4944 break; 4945 case LPFC_CTL_PORT_STA: 4946 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4947 LPFC_CTL_PORT_STA_OFFSET; 4948 break; 4949 case LPFC_CTL_PORT_CTL: 4950 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4951 LPFC_CTL_PORT_CTL_OFFSET; 4952 break; 4953 case LPFC_CTL_PORT_ER1: 4954 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4955 LPFC_CTL_PORT_ER1_OFFSET; 4956 break; 4957 case LPFC_CTL_PORT_ER2: 4958 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4959 LPFC_CTL_PORT_ER2_OFFSET; 4960 break; 4961 case LPFC_CTL_PDEV_CTL: 4962 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4963 LPFC_CTL_PDEV_CTL_OFFSET; 4964 break; 4965 default: 4966 goto error_out; 4967 } 4968 4969 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4970 reg_val = value; 4971 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4972 reg_val = readl(ctl_reg); 4973 reg_val |= value; 4974 } 4975 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4976 reg_val = readl(ctl_reg); 4977 reg_val &= ~value; 4978 } 4979 writel(reg_val, ctl_reg); 4980 readl(ctl_reg); /* flush */ 4981 } 4982 return nbytes; 4983 4984 error_out: 4985 /* Clean out command structure on command error out */ 4986 memset(&idiag, 0, sizeof(idiag)); 4987 return -EINVAL; 4988 } 4989 4990 /** 4991 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 4992 * @phba: Pointer to HBA context object. 4993 * @pbuffer: Pointer to data buffer. 4994 * 4995 * Description: 4996 * This routine gets the driver mailbox access debugfs setup information. 4997 * 4998 * Returns: 4999 * This function returns the amount of data that was read (this could be less 5000 * than @nbytes if the end of the file was reached) or a negative error value. 5001 **/ 5002 static int 5003 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 5004 { 5005 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5006 int len = 0; 5007 5008 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5009 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5010 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5011 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5012 5013 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5014 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 5015 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5016 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 5017 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5018 "mbx_word_cnt: %04d\n", mbx_word_cnt); 5019 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5020 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 5021 5022 return len; 5023 } 5024 5025 /** 5026 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 5027 * @file: The file pointer to read from. 5028 * @buf: The buffer to copy the data to. 5029 * @nbytes: The number of bytes to read. 5030 * @ppos: The position in the file to start reading from. 5031 * 5032 * Description: 5033 * This routine reads data from the @phba driver mailbox access debugfs setup 5034 * information. 5035 * 5036 * Returns: 5037 * This function returns the amount of data that was read (this could be less 5038 * than @nbytes if the end of the file was reached) or a negative error value. 5039 **/ 5040 static ssize_t 5041 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 5042 loff_t *ppos) 5043 { 5044 struct lpfc_debug *debug = file->private_data; 5045 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5046 char *pbuffer; 5047 int len = 0; 5048 5049 /* This is a user read operation */ 5050 debug->op = LPFC_IDIAG_OP_RD; 5051 5052 if (!debug->buffer) 5053 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 5054 if (!debug->buffer) 5055 return 0; 5056 pbuffer = debug->buffer; 5057 5058 if (*ppos) 5059 return 0; 5060 5061 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 5062 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 5063 return 0; 5064 5065 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 5066 5067 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5068 } 5069 5070 /** 5071 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 5072 * @file: The file pointer to read from. 5073 * @buf: The buffer to copy the user data from. 5074 * @nbytes: The number of bytes to get. 5075 * @ppos: The position in the file to start reading from. 5076 * 5077 * This routine get the debugfs idiag command struct from user space and then 5078 * perform the syntax check for driver mailbox command (dump) and sets up the 5079 * necessary states in the idiag command struct accordingly. 5080 * 5081 * It returns the @nbytges passing in from debugfs user space when successful. 5082 * In case of error conditions, it returns proper error code back to the user 5083 * space. 5084 **/ 5085 static ssize_t 5086 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 5087 size_t nbytes, loff_t *ppos) 5088 { 5089 struct lpfc_debug *debug = file->private_data; 5090 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5091 int rc; 5092 5093 /* This is a user write operation */ 5094 debug->op = LPFC_IDIAG_OP_WR; 5095 5096 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5097 if (rc < 0) 5098 return rc; 5099 5100 /* Sanity check on command line arguments */ 5101 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5102 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5103 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5104 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5105 5106 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 5107 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 5108 goto error_out; 5109 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 5110 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5111 goto error_out; 5112 if (mbx_word_cnt > sizeof(MAILBOX_t)) 5113 goto error_out; 5114 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 5115 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 5116 goto error_out; 5117 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 5118 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5119 goto error_out; 5120 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 5121 goto error_out; 5122 if (mbx_mbox_cmd != 0x9b) 5123 goto error_out; 5124 } else 5125 goto error_out; 5126 5127 if (mbx_word_cnt == 0) 5128 goto error_out; 5129 if (rc != LPFC_MBX_DMP_ARG) 5130 goto error_out; 5131 if (mbx_mbox_cmd & ~0xff) 5132 goto error_out; 5133 5134 /* condition for stop mailbox dump */ 5135 if (mbx_dump_cnt == 0) 5136 goto reset_out; 5137 5138 return nbytes; 5139 5140 reset_out: 5141 /* Clean out command structure on command error out */ 5142 memset(&idiag, 0, sizeof(idiag)); 5143 return nbytes; 5144 5145 error_out: 5146 /* Clean out command structure on command error out */ 5147 memset(&idiag, 0, sizeof(idiag)); 5148 return -EINVAL; 5149 } 5150 5151 /** 5152 * lpfc_idiag_extacc_avail_get - get the available extents information 5153 * @phba: pointer to lpfc hba data structure. 5154 * @pbuffer: pointer to internal buffer. 5155 * @len: length into the internal buffer data has been copied. 5156 * 5157 * Description: 5158 * This routine is to get the available extent information. 5159 * 5160 * Returns: 5161 * overall lenth of the data read into the internal buffer. 5162 **/ 5163 static int 5164 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 5165 { 5166 uint16_t ext_cnt, ext_size; 5167 5168 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5169 "\nAvailable Extents Information:\n"); 5170 5171 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5172 "\tPort Available VPI extents: "); 5173 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 5174 &ext_cnt, &ext_size); 5175 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5176 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5177 5178 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5179 "\tPort Available VFI extents: "); 5180 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 5181 &ext_cnt, &ext_size); 5182 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5183 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5184 5185 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5186 "\tPort Available RPI extents: "); 5187 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 5188 &ext_cnt, &ext_size); 5189 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5190 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5191 5192 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5193 "\tPort Available XRI extents: "); 5194 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 5195 &ext_cnt, &ext_size); 5196 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5197 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5198 5199 return len; 5200 } 5201 5202 /** 5203 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 5204 * @phba: pointer to lpfc hba data structure. 5205 * @pbuffer: pointer to internal buffer. 5206 * @len: length into the internal buffer data has been copied. 5207 * 5208 * Description: 5209 * This routine is to get the allocated extent information. 5210 * 5211 * Returns: 5212 * overall lenth of the data read into the internal buffer. 5213 **/ 5214 static int 5215 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 5216 { 5217 uint16_t ext_cnt, ext_size; 5218 int rc; 5219 5220 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5221 "\nAllocated Extents Information:\n"); 5222 5223 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5224 "\tHost Allocated VPI extents: "); 5225 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 5226 &ext_cnt, &ext_size); 5227 if (!rc) 5228 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5229 "Port %d Extent %3d, Size %3d\n", 5230 phba->brd_no, ext_cnt, ext_size); 5231 else 5232 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5233 "N/A\n"); 5234 5235 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5236 "\tHost Allocated VFI extents: "); 5237 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 5238 &ext_cnt, &ext_size); 5239 if (!rc) 5240 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5241 "Port %d Extent %3d, Size %3d\n", 5242 phba->brd_no, ext_cnt, ext_size); 5243 else 5244 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5245 "N/A\n"); 5246 5247 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5248 "\tHost Allocated RPI extents: "); 5249 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 5250 &ext_cnt, &ext_size); 5251 if (!rc) 5252 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5253 "Port %d Extent %3d, Size %3d\n", 5254 phba->brd_no, ext_cnt, ext_size); 5255 else 5256 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5257 "N/A\n"); 5258 5259 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5260 "\tHost Allocated XRI extents: "); 5261 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 5262 &ext_cnt, &ext_size); 5263 if (!rc) 5264 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5265 "Port %d Extent %3d, Size %3d\n", 5266 phba->brd_no, ext_cnt, ext_size); 5267 else 5268 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5269 "N/A\n"); 5270 5271 return len; 5272 } 5273 5274 /** 5275 * lpfc_idiag_extacc_drivr_get - get driver extent information 5276 * @phba: pointer to lpfc hba data structure. 5277 * @pbuffer: pointer to internal buffer. 5278 * @len: length into the internal buffer data has been copied. 5279 * 5280 * Description: 5281 * This routine is to get the driver extent information. 5282 * 5283 * Returns: 5284 * overall lenth of the data read into the internal buffer. 5285 **/ 5286 static int 5287 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 5288 { 5289 struct lpfc_rsrc_blks *rsrc_blks; 5290 int index; 5291 5292 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5293 "\nDriver Extents Information:\n"); 5294 5295 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5296 "\tVPI extents:\n"); 5297 index = 0; 5298 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 5299 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5300 "\t\tBlock %3d: Start %4d, Count %4d\n", 5301 index, rsrc_blks->rsrc_start, 5302 rsrc_blks->rsrc_size); 5303 index++; 5304 } 5305 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5306 "\tVFI extents:\n"); 5307 index = 0; 5308 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 5309 list) { 5310 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5311 "\t\tBlock %3d: Start %4d, Count %4d\n", 5312 index, rsrc_blks->rsrc_start, 5313 rsrc_blks->rsrc_size); 5314 index++; 5315 } 5316 5317 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5318 "\tRPI extents:\n"); 5319 index = 0; 5320 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 5321 list) { 5322 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5323 "\t\tBlock %3d: Start %4d, Count %4d\n", 5324 index, rsrc_blks->rsrc_start, 5325 rsrc_blks->rsrc_size); 5326 index++; 5327 } 5328 5329 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5330 "\tXRI extents:\n"); 5331 index = 0; 5332 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 5333 list) { 5334 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5335 "\t\tBlock %3d: Start %4d, Count %4d\n", 5336 index, rsrc_blks->rsrc_start, 5337 rsrc_blks->rsrc_size); 5338 index++; 5339 } 5340 5341 return len; 5342 } 5343 5344 /** 5345 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 5346 * @file: The file pointer to read from. 5347 * @buf: The buffer to copy the user data from. 5348 * @nbytes: The number of bytes to get. 5349 * @ppos: The position in the file to start reading from. 5350 * 5351 * This routine get the debugfs idiag command struct from user space and then 5352 * perform the syntax check for extent information access commands and sets 5353 * up the necessary states in the idiag command struct accordingly. 5354 * 5355 * It returns the @nbytges passing in from debugfs user space when successful. 5356 * In case of error conditions, it returns proper error code back to the user 5357 * space. 5358 **/ 5359 static ssize_t 5360 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 5361 size_t nbytes, loff_t *ppos) 5362 { 5363 struct lpfc_debug *debug = file->private_data; 5364 uint32_t ext_map; 5365 int rc; 5366 5367 /* This is a user write operation */ 5368 debug->op = LPFC_IDIAG_OP_WR; 5369 5370 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5371 if (rc < 0) 5372 return rc; 5373 5374 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5375 5376 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5377 goto error_out; 5378 if (rc != LPFC_EXT_ACC_CMD_ARG) 5379 goto error_out; 5380 if (!(ext_map & LPFC_EXT_ACC_ALL)) 5381 goto error_out; 5382 5383 return nbytes; 5384 error_out: 5385 /* Clean out command structure on command error out */ 5386 memset(&idiag, 0, sizeof(idiag)); 5387 return -EINVAL; 5388 } 5389 5390 /** 5391 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 5392 * @file: The file pointer to read from. 5393 * @buf: The buffer to copy the data to. 5394 * @nbytes: The number of bytes to read. 5395 * @ppos: The position in the file to start reading from. 5396 * 5397 * Description: 5398 * This routine reads data from the proper extent information according to 5399 * the idiag command, and copies to user @buf. 5400 * 5401 * Returns: 5402 * This function returns the amount of data that was read (this could be less 5403 * than @nbytes if the end of the file was reached) or a negative error value. 5404 **/ 5405 static ssize_t 5406 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 5407 loff_t *ppos) 5408 { 5409 struct lpfc_debug *debug = file->private_data; 5410 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5411 char *pbuffer; 5412 uint32_t ext_map; 5413 int len = 0; 5414 5415 /* This is a user read operation */ 5416 debug->op = LPFC_IDIAG_OP_RD; 5417 5418 if (!debug->buffer) 5419 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 5420 if (!debug->buffer) 5421 return 0; 5422 pbuffer = debug->buffer; 5423 if (*ppos) 5424 return 0; 5425 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5426 return 0; 5427 5428 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5429 if (ext_map & LPFC_EXT_ACC_AVAIL) 5430 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 5431 if (ext_map & LPFC_EXT_ACC_ALLOC) 5432 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 5433 if (ext_map & LPFC_EXT_ACC_DRIVR) 5434 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 5435 5436 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5437 } 5438 5439 #undef lpfc_debugfs_op_disc_trc 5440 static const struct file_operations lpfc_debugfs_op_disc_trc = { 5441 .owner = THIS_MODULE, 5442 .open = lpfc_debugfs_disc_trc_open, 5443 .llseek = lpfc_debugfs_lseek, 5444 .read = lpfc_debugfs_read, 5445 .release = lpfc_debugfs_release, 5446 }; 5447 5448 #undef lpfc_debugfs_op_nodelist 5449 static const struct file_operations lpfc_debugfs_op_nodelist = { 5450 .owner = THIS_MODULE, 5451 .open = lpfc_debugfs_nodelist_open, 5452 .llseek = lpfc_debugfs_lseek, 5453 .read = lpfc_debugfs_read, 5454 .release = lpfc_debugfs_release, 5455 }; 5456 5457 #undef lpfc_debugfs_op_multixripools 5458 static const struct file_operations lpfc_debugfs_op_multixripools = { 5459 .owner = THIS_MODULE, 5460 .open = lpfc_debugfs_multixripools_open, 5461 .llseek = lpfc_debugfs_lseek, 5462 .read = lpfc_debugfs_read, 5463 .write = lpfc_debugfs_multixripools_write, 5464 .release = lpfc_debugfs_release, 5465 }; 5466 5467 #undef lpfc_debugfs_op_hbqinfo 5468 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 5469 .owner = THIS_MODULE, 5470 .open = lpfc_debugfs_hbqinfo_open, 5471 .llseek = lpfc_debugfs_lseek, 5472 .read = lpfc_debugfs_read, 5473 .release = lpfc_debugfs_release, 5474 }; 5475 5476 #ifdef LPFC_HDWQ_LOCK_STAT 5477 #undef lpfc_debugfs_op_lockstat 5478 static const struct file_operations lpfc_debugfs_op_lockstat = { 5479 .owner = THIS_MODULE, 5480 .open = lpfc_debugfs_lockstat_open, 5481 .llseek = lpfc_debugfs_lseek, 5482 .read = lpfc_debugfs_read, 5483 .write = lpfc_debugfs_lockstat_write, 5484 .release = lpfc_debugfs_release, 5485 }; 5486 #endif 5487 5488 #undef lpfc_debugfs_ras_log 5489 static const struct file_operations lpfc_debugfs_ras_log = { 5490 .owner = THIS_MODULE, 5491 .open = lpfc_debugfs_ras_log_open, 5492 .llseek = lpfc_debugfs_lseek, 5493 .read = lpfc_debugfs_read, 5494 .release = lpfc_debugfs_ras_log_release, 5495 }; 5496 5497 #undef lpfc_debugfs_op_dumpHBASlim 5498 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 5499 .owner = THIS_MODULE, 5500 .open = lpfc_debugfs_dumpHBASlim_open, 5501 .llseek = lpfc_debugfs_lseek, 5502 .read = lpfc_debugfs_read, 5503 .release = lpfc_debugfs_release, 5504 }; 5505 5506 #undef lpfc_debugfs_op_dumpHostSlim 5507 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 5508 .owner = THIS_MODULE, 5509 .open = lpfc_debugfs_dumpHostSlim_open, 5510 .llseek = lpfc_debugfs_lseek, 5511 .read = lpfc_debugfs_read, 5512 .release = lpfc_debugfs_release, 5513 }; 5514 5515 #undef lpfc_debugfs_op_nvmestat 5516 static const struct file_operations lpfc_debugfs_op_nvmestat = { 5517 .owner = THIS_MODULE, 5518 .open = lpfc_debugfs_nvmestat_open, 5519 .llseek = lpfc_debugfs_lseek, 5520 .read = lpfc_debugfs_read, 5521 .write = lpfc_debugfs_nvmestat_write, 5522 .release = lpfc_debugfs_release, 5523 }; 5524 5525 #undef lpfc_debugfs_op_scsistat 5526 static const struct file_operations lpfc_debugfs_op_scsistat = { 5527 .owner = THIS_MODULE, 5528 .open = lpfc_debugfs_scsistat_open, 5529 .llseek = lpfc_debugfs_lseek, 5530 .read = lpfc_debugfs_read, 5531 .write = lpfc_debugfs_scsistat_write, 5532 .release = lpfc_debugfs_release, 5533 }; 5534 5535 #undef lpfc_debugfs_op_ioktime 5536 static const struct file_operations lpfc_debugfs_op_ioktime = { 5537 .owner = THIS_MODULE, 5538 .open = lpfc_debugfs_ioktime_open, 5539 .llseek = lpfc_debugfs_lseek, 5540 .read = lpfc_debugfs_read, 5541 .write = lpfc_debugfs_ioktime_write, 5542 .release = lpfc_debugfs_release, 5543 }; 5544 5545 #undef lpfc_debugfs_op_nvmeio_trc 5546 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 5547 .owner = THIS_MODULE, 5548 .open = lpfc_debugfs_nvmeio_trc_open, 5549 .llseek = lpfc_debugfs_lseek, 5550 .read = lpfc_debugfs_read, 5551 .write = lpfc_debugfs_nvmeio_trc_write, 5552 .release = lpfc_debugfs_release, 5553 }; 5554 5555 #undef lpfc_debugfs_op_hdwqstat 5556 static const struct file_operations lpfc_debugfs_op_hdwqstat = { 5557 .owner = THIS_MODULE, 5558 .open = lpfc_debugfs_hdwqstat_open, 5559 .llseek = lpfc_debugfs_lseek, 5560 .read = lpfc_debugfs_read, 5561 .write = lpfc_debugfs_hdwqstat_write, 5562 .release = lpfc_debugfs_release, 5563 }; 5564 5565 #undef lpfc_debugfs_op_dif_err 5566 static const struct file_operations lpfc_debugfs_op_dif_err = { 5567 .owner = THIS_MODULE, 5568 .open = simple_open, 5569 .llseek = lpfc_debugfs_lseek, 5570 .read = lpfc_debugfs_dif_err_read, 5571 .write = lpfc_debugfs_dif_err_write, 5572 .release = lpfc_debugfs_dif_err_release, 5573 }; 5574 5575 #undef lpfc_debugfs_op_slow_ring_trc 5576 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 5577 .owner = THIS_MODULE, 5578 .open = lpfc_debugfs_slow_ring_trc_open, 5579 .llseek = lpfc_debugfs_lseek, 5580 .read = lpfc_debugfs_read, 5581 .release = lpfc_debugfs_release, 5582 }; 5583 5584 static struct dentry *lpfc_debugfs_root = NULL; 5585 static atomic_t lpfc_debugfs_hba_count; 5586 5587 /* 5588 * File operations for the iDiag debugfs 5589 */ 5590 #undef lpfc_idiag_op_pciCfg 5591 static const struct file_operations lpfc_idiag_op_pciCfg = { 5592 .owner = THIS_MODULE, 5593 .open = lpfc_idiag_open, 5594 .llseek = lpfc_debugfs_lseek, 5595 .read = lpfc_idiag_pcicfg_read, 5596 .write = lpfc_idiag_pcicfg_write, 5597 .release = lpfc_idiag_cmd_release, 5598 }; 5599 5600 #undef lpfc_idiag_op_barAcc 5601 static const struct file_operations lpfc_idiag_op_barAcc = { 5602 .owner = THIS_MODULE, 5603 .open = lpfc_idiag_open, 5604 .llseek = lpfc_debugfs_lseek, 5605 .read = lpfc_idiag_baracc_read, 5606 .write = lpfc_idiag_baracc_write, 5607 .release = lpfc_idiag_cmd_release, 5608 }; 5609 5610 #undef lpfc_idiag_op_queInfo 5611 static const struct file_operations lpfc_idiag_op_queInfo = { 5612 .owner = THIS_MODULE, 5613 .open = lpfc_idiag_open, 5614 .read = lpfc_idiag_queinfo_read, 5615 .release = lpfc_idiag_release, 5616 }; 5617 5618 #undef lpfc_idiag_op_queAcc 5619 static const struct file_operations lpfc_idiag_op_queAcc = { 5620 .owner = THIS_MODULE, 5621 .open = lpfc_idiag_open, 5622 .llseek = lpfc_debugfs_lseek, 5623 .read = lpfc_idiag_queacc_read, 5624 .write = lpfc_idiag_queacc_write, 5625 .release = lpfc_idiag_cmd_release, 5626 }; 5627 5628 #undef lpfc_idiag_op_drbAcc 5629 static const struct file_operations lpfc_idiag_op_drbAcc = { 5630 .owner = THIS_MODULE, 5631 .open = lpfc_idiag_open, 5632 .llseek = lpfc_debugfs_lseek, 5633 .read = lpfc_idiag_drbacc_read, 5634 .write = lpfc_idiag_drbacc_write, 5635 .release = lpfc_idiag_cmd_release, 5636 }; 5637 5638 #undef lpfc_idiag_op_ctlAcc 5639 static const struct file_operations lpfc_idiag_op_ctlAcc = { 5640 .owner = THIS_MODULE, 5641 .open = lpfc_idiag_open, 5642 .llseek = lpfc_debugfs_lseek, 5643 .read = lpfc_idiag_ctlacc_read, 5644 .write = lpfc_idiag_ctlacc_write, 5645 .release = lpfc_idiag_cmd_release, 5646 }; 5647 5648 #undef lpfc_idiag_op_mbxAcc 5649 static const struct file_operations lpfc_idiag_op_mbxAcc = { 5650 .owner = THIS_MODULE, 5651 .open = lpfc_idiag_open, 5652 .llseek = lpfc_debugfs_lseek, 5653 .read = lpfc_idiag_mbxacc_read, 5654 .write = lpfc_idiag_mbxacc_write, 5655 .release = lpfc_idiag_cmd_release, 5656 }; 5657 5658 #undef lpfc_idiag_op_extAcc 5659 static const struct file_operations lpfc_idiag_op_extAcc = { 5660 .owner = THIS_MODULE, 5661 .open = lpfc_idiag_open, 5662 .llseek = lpfc_debugfs_lseek, 5663 .read = lpfc_idiag_extacc_read, 5664 .write = lpfc_idiag_extacc_write, 5665 .release = lpfc_idiag_cmd_release, 5666 }; 5667 #endif 5668 5669 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 5670 * @phba: Pointer to HBA context object. 5671 * @dmabuf: Pointer to a DMA buffer descriptor. 5672 * 5673 * Description: 5674 * This routine dump a bsg pass-through non-embedded mailbox command with 5675 * external buffer. 5676 **/ 5677 void 5678 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 5679 enum mbox_type mbox_tp, enum dma_type dma_tp, 5680 enum sta_type sta_tp, 5681 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 5682 { 5683 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5684 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 5685 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5686 int len = 0; 5687 uint32_t do_dump = 0; 5688 uint32_t *pword; 5689 uint32_t i; 5690 5691 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 5692 return; 5693 5694 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5695 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5696 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5697 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5698 5699 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 5700 (*mbx_dump_cnt == 0) || 5701 (*mbx_word_cnt == 0)) 5702 return; 5703 5704 if (*mbx_mbox_cmd != 0x9B) 5705 return; 5706 5707 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 5708 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 5709 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 5710 pr_err("\nRead mbox command (x%x), " 5711 "nemb:0x%x, extbuf_cnt:%d:\n", 5712 sta_tp, nemb_tp, ext_buf); 5713 } 5714 } 5715 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5716 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5717 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5718 pr_err("\nRead mbox buffer (x%x), " 5719 "nemb:0x%x, extbuf_seq:%d:\n", 5720 sta_tp, nemb_tp, ext_buf); 5721 } 5722 } 5723 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5724 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5725 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5726 pr_err("\nWrite mbox command (x%x), " 5727 "nemb:0x%x, extbuf_cnt:%d:\n", 5728 sta_tp, nemb_tp, ext_buf); 5729 } 5730 } 5731 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5732 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5733 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5734 pr_err("\nWrite mbox buffer (x%x), " 5735 "nemb:0x%x, extbuf_seq:%d:\n", 5736 sta_tp, nemb_tp, ext_buf); 5737 } 5738 } 5739 5740 /* dump buffer content */ 5741 if (do_dump) { 5742 pword = (uint32_t *)dmabuf->virt; 5743 for (i = 0; i < *mbx_word_cnt; i++) { 5744 if (!(i % 8)) { 5745 if (i != 0) 5746 pr_err("%s\n", line_buf); 5747 len = 0; 5748 len += scnprintf(line_buf+len, 5749 LPFC_MBX_ACC_LBUF_SZ-len, 5750 "%03d: ", i); 5751 } 5752 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5753 "%08x ", (uint32_t)*pword); 5754 pword++; 5755 } 5756 if ((i - 1) % 8) 5757 pr_err("%s\n", line_buf); 5758 (*mbx_dump_cnt)--; 5759 } 5760 5761 /* Clean out command structure on reaching dump count */ 5762 if (*mbx_dump_cnt == 0) 5763 memset(&idiag, 0, sizeof(idiag)); 5764 return; 5765 #endif 5766 } 5767 5768 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5769 * @phba: Pointer to HBA context object. 5770 * @dmabuf: Pointer to a DMA buffer descriptor. 5771 * 5772 * Description: 5773 * This routine dump a pass-through non-embedded mailbox command from issue 5774 * mailbox command. 5775 **/ 5776 void 5777 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5778 { 5779 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5780 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5781 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5782 int len = 0; 5783 uint32_t *pword; 5784 uint8_t *pbyte; 5785 uint32_t i, j; 5786 5787 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5788 return; 5789 5790 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5791 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5792 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5793 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5794 5795 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5796 (*mbx_dump_cnt == 0) || 5797 (*mbx_word_cnt == 0)) 5798 return; 5799 5800 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5801 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5802 return; 5803 5804 /* dump buffer content */ 5805 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 5806 pr_err("Mailbox command:0x%x dump by word:\n", 5807 pmbox->mbxCommand); 5808 pword = (uint32_t *)pmbox; 5809 for (i = 0; i < *mbx_word_cnt; i++) { 5810 if (!(i % 8)) { 5811 if (i != 0) 5812 pr_err("%s\n", line_buf); 5813 len = 0; 5814 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5815 len += scnprintf(line_buf+len, 5816 LPFC_MBX_ACC_LBUF_SZ-len, 5817 "%03d: ", i); 5818 } 5819 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5820 "%08x ", 5821 ((uint32_t)*pword) & 0xffffffff); 5822 pword++; 5823 } 5824 if ((i - 1) % 8) 5825 pr_err("%s\n", line_buf); 5826 pr_err("\n"); 5827 } 5828 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 5829 pr_err("Mailbox command:0x%x dump by byte:\n", 5830 pmbox->mbxCommand); 5831 pbyte = (uint8_t *)pmbox; 5832 for (i = 0; i < *mbx_word_cnt; i++) { 5833 if (!(i % 8)) { 5834 if (i != 0) 5835 pr_err("%s\n", line_buf); 5836 len = 0; 5837 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5838 len += scnprintf(line_buf+len, 5839 LPFC_MBX_ACC_LBUF_SZ-len, 5840 "%03d: ", i); 5841 } 5842 for (j = 0; j < 4; j++) { 5843 len += scnprintf(line_buf+len, 5844 LPFC_MBX_ACC_LBUF_SZ-len, 5845 "%02x", 5846 ((uint8_t)*pbyte) & 0xff); 5847 pbyte++; 5848 } 5849 len += scnprintf(line_buf+len, 5850 LPFC_MBX_ACC_LBUF_SZ-len, " "); 5851 } 5852 if ((i - 1) % 8) 5853 pr_err("%s\n", line_buf); 5854 pr_err("\n"); 5855 } 5856 (*mbx_dump_cnt)--; 5857 5858 /* Clean out command structure on reaching dump count */ 5859 if (*mbx_dump_cnt == 0) 5860 memset(&idiag, 0, sizeof(idiag)); 5861 return; 5862 #endif 5863 } 5864 5865 /** 5866 * lpfc_debugfs_initialize - Initialize debugfs for a vport 5867 * @vport: The vport pointer to initialize. 5868 * 5869 * Description: 5870 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 5871 * If not already created, this routine will create the lpfc directory, and 5872 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 5873 * also create each file used to access lpfc specific debugfs information. 5874 **/ 5875 inline void 5876 lpfc_debugfs_initialize(struct lpfc_vport *vport) 5877 { 5878 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5879 struct lpfc_hba *phba = vport->phba; 5880 char name[64]; 5881 uint32_t num, i; 5882 bool pport_setup = false; 5883 5884 if (!lpfc_debugfs_enable) 5885 return; 5886 5887 /* Setup lpfc root directory */ 5888 if (!lpfc_debugfs_root) { 5889 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 5890 atomic_set(&lpfc_debugfs_hba_count, 0); 5891 } 5892 if (!lpfc_debugfs_start_time) 5893 lpfc_debugfs_start_time = jiffies; 5894 5895 /* Setup funcX directory for specific HBA PCI function */ 5896 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 5897 if (!phba->hba_debugfs_root) { 5898 pport_setup = true; 5899 phba->hba_debugfs_root = 5900 debugfs_create_dir(name, lpfc_debugfs_root); 5901 atomic_inc(&lpfc_debugfs_hba_count); 5902 atomic_set(&phba->debugfs_vport_count, 0); 5903 5904 /* Multi-XRI pools */ 5905 snprintf(name, sizeof(name), "multixripools"); 5906 phba->debug_multixri_pools = 5907 debugfs_create_file(name, S_IFREG | 0644, 5908 phba->hba_debugfs_root, 5909 phba, 5910 &lpfc_debugfs_op_multixripools); 5911 if (!phba->debug_multixri_pools) { 5912 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5913 "0527 Cannot create debugfs multixripools\n"); 5914 goto debug_failed; 5915 } 5916 5917 /* RAS log */ 5918 snprintf(name, sizeof(name), "ras_log"); 5919 phba->debug_ras_log = 5920 debugfs_create_file(name, 0644, 5921 phba->hba_debugfs_root, 5922 phba, &lpfc_debugfs_ras_log); 5923 if (!phba->debug_ras_log) { 5924 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5925 "6148 Cannot create debugfs" 5926 " ras_log\n"); 5927 goto debug_failed; 5928 } 5929 5930 /* Setup hbqinfo */ 5931 snprintf(name, sizeof(name), "hbqinfo"); 5932 phba->debug_hbqinfo = 5933 debugfs_create_file(name, S_IFREG | 0644, 5934 phba->hba_debugfs_root, 5935 phba, &lpfc_debugfs_op_hbqinfo); 5936 5937 #ifdef LPFC_HDWQ_LOCK_STAT 5938 /* Setup lockstat */ 5939 snprintf(name, sizeof(name), "lockstat"); 5940 phba->debug_lockstat = 5941 debugfs_create_file(name, S_IFREG | 0644, 5942 phba->hba_debugfs_root, 5943 phba, &lpfc_debugfs_op_lockstat); 5944 if (!phba->debug_lockstat) { 5945 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5946 "4610 Cant create debugfs lockstat\n"); 5947 goto debug_failed; 5948 } 5949 #endif 5950 5951 /* Setup dumpHBASlim */ 5952 if (phba->sli_rev < LPFC_SLI_REV4) { 5953 snprintf(name, sizeof(name), "dumpHBASlim"); 5954 phba->debug_dumpHBASlim = 5955 debugfs_create_file(name, 5956 S_IFREG|S_IRUGO|S_IWUSR, 5957 phba->hba_debugfs_root, 5958 phba, &lpfc_debugfs_op_dumpHBASlim); 5959 } else 5960 phba->debug_dumpHBASlim = NULL; 5961 5962 /* Setup dumpHostSlim */ 5963 if (phba->sli_rev < LPFC_SLI_REV4) { 5964 snprintf(name, sizeof(name), "dumpHostSlim"); 5965 phba->debug_dumpHostSlim = 5966 debugfs_create_file(name, 5967 S_IFREG|S_IRUGO|S_IWUSR, 5968 phba->hba_debugfs_root, 5969 phba, &lpfc_debugfs_op_dumpHostSlim); 5970 } else 5971 phba->debug_dumpHostSlim = NULL; 5972 5973 /* Setup DIF Error Injections */ 5974 snprintf(name, sizeof(name), "InjErrLBA"); 5975 phba->debug_InjErrLBA = 5976 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5977 phba->hba_debugfs_root, 5978 phba, &lpfc_debugfs_op_dif_err); 5979 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 5980 5981 snprintf(name, sizeof(name), "InjErrNPortID"); 5982 phba->debug_InjErrNPortID = 5983 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5984 phba->hba_debugfs_root, 5985 phba, &lpfc_debugfs_op_dif_err); 5986 5987 snprintf(name, sizeof(name), "InjErrWWPN"); 5988 phba->debug_InjErrWWPN = 5989 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5990 phba->hba_debugfs_root, 5991 phba, &lpfc_debugfs_op_dif_err); 5992 5993 snprintf(name, sizeof(name), "writeGuardInjErr"); 5994 phba->debug_writeGuard = 5995 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5996 phba->hba_debugfs_root, 5997 phba, &lpfc_debugfs_op_dif_err); 5998 5999 snprintf(name, sizeof(name), "writeAppInjErr"); 6000 phba->debug_writeApp = 6001 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6002 phba->hba_debugfs_root, 6003 phba, &lpfc_debugfs_op_dif_err); 6004 6005 snprintf(name, sizeof(name), "writeRefInjErr"); 6006 phba->debug_writeRef = 6007 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6008 phba->hba_debugfs_root, 6009 phba, &lpfc_debugfs_op_dif_err); 6010 6011 snprintf(name, sizeof(name), "readGuardInjErr"); 6012 phba->debug_readGuard = 6013 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6014 phba->hba_debugfs_root, 6015 phba, &lpfc_debugfs_op_dif_err); 6016 6017 snprintf(name, sizeof(name), "readAppInjErr"); 6018 phba->debug_readApp = 6019 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6020 phba->hba_debugfs_root, 6021 phba, &lpfc_debugfs_op_dif_err); 6022 6023 snprintf(name, sizeof(name), "readRefInjErr"); 6024 phba->debug_readRef = 6025 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6026 phba->hba_debugfs_root, 6027 phba, &lpfc_debugfs_op_dif_err); 6028 6029 /* Setup slow ring trace */ 6030 if (lpfc_debugfs_max_slow_ring_trc) { 6031 num = lpfc_debugfs_max_slow_ring_trc - 1; 6032 if (num & lpfc_debugfs_max_slow_ring_trc) { 6033 /* Change to be a power of 2 */ 6034 num = lpfc_debugfs_max_slow_ring_trc; 6035 i = 0; 6036 while (num > 1) { 6037 num = num >> 1; 6038 i++; 6039 } 6040 lpfc_debugfs_max_slow_ring_trc = (1 << i); 6041 pr_err("lpfc_debugfs_max_disc_trc changed to " 6042 "%d\n", lpfc_debugfs_max_disc_trc); 6043 } 6044 } 6045 6046 snprintf(name, sizeof(name), "slow_ring_trace"); 6047 phba->debug_slow_ring_trc = 6048 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6049 phba->hba_debugfs_root, 6050 phba, &lpfc_debugfs_op_slow_ring_trc); 6051 if (!phba->slow_ring_trc) { 6052 phba->slow_ring_trc = kmalloc( 6053 (sizeof(struct lpfc_debugfs_trc) * 6054 lpfc_debugfs_max_slow_ring_trc), 6055 GFP_KERNEL); 6056 if (!phba->slow_ring_trc) { 6057 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6058 "0416 Cannot create debugfs " 6059 "slow_ring buffer\n"); 6060 goto debug_failed; 6061 } 6062 atomic_set(&phba->slow_ring_trc_cnt, 0); 6063 memset(phba->slow_ring_trc, 0, 6064 (sizeof(struct lpfc_debugfs_trc) * 6065 lpfc_debugfs_max_slow_ring_trc)); 6066 } 6067 6068 snprintf(name, sizeof(name), "nvmeio_trc"); 6069 phba->debug_nvmeio_trc = 6070 debugfs_create_file(name, 0644, 6071 phba->hba_debugfs_root, 6072 phba, &lpfc_debugfs_op_nvmeio_trc); 6073 6074 atomic_set(&phba->nvmeio_trc_cnt, 0); 6075 if (lpfc_debugfs_max_nvmeio_trc) { 6076 num = lpfc_debugfs_max_nvmeio_trc - 1; 6077 if (num & lpfc_debugfs_max_disc_trc) { 6078 /* Change to be a power of 2 */ 6079 num = lpfc_debugfs_max_nvmeio_trc; 6080 i = 0; 6081 while (num > 1) { 6082 num = num >> 1; 6083 i++; 6084 } 6085 lpfc_debugfs_max_nvmeio_trc = (1 << i); 6086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6087 "0575 lpfc_debugfs_max_nvmeio_trc " 6088 "changed to %d\n", 6089 lpfc_debugfs_max_nvmeio_trc); 6090 } 6091 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 6092 6093 /* Allocate trace buffer and initialize */ 6094 phba->nvmeio_trc = kzalloc( 6095 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 6096 phba->nvmeio_trc_size), GFP_KERNEL); 6097 6098 if (!phba->nvmeio_trc) { 6099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6100 "0576 Cannot create debugfs " 6101 "nvmeio_trc buffer\n"); 6102 goto nvmeio_off; 6103 } 6104 phba->nvmeio_trc_on = 1; 6105 phba->nvmeio_trc_output_idx = 0; 6106 phba->nvmeio_trc = NULL; 6107 } else { 6108 nvmeio_off: 6109 phba->nvmeio_trc_size = 0; 6110 phba->nvmeio_trc_on = 0; 6111 phba->nvmeio_trc_output_idx = 0; 6112 phba->nvmeio_trc = NULL; 6113 } 6114 } 6115 6116 snprintf(name, sizeof(name), "vport%d", vport->vpi); 6117 if (!vport->vport_debugfs_root) { 6118 vport->vport_debugfs_root = 6119 debugfs_create_dir(name, phba->hba_debugfs_root); 6120 atomic_inc(&phba->debugfs_vport_count); 6121 } 6122 6123 if (lpfc_debugfs_max_disc_trc) { 6124 num = lpfc_debugfs_max_disc_trc - 1; 6125 if (num & lpfc_debugfs_max_disc_trc) { 6126 /* Change to be a power of 2 */ 6127 num = lpfc_debugfs_max_disc_trc; 6128 i = 0; 6129 while (num > 1) { 6130 num = num >> 1; 6131 i++; 6132 } 6133 lpfc_debugfs_max_disc_trc = (1 << i); 6134 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n", 6135 lpfc_debugfs_max_disc_trc); 6136 } 6137 } 6138 6139 vport->disc_trc = kzalloc( 6140 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 6141 GFP_KERNEL); 6142 6143 if (!vport->disc_trc) { 6144 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6145 "0418 Cannot create debugfs disc trace " 6146 "buffer\n"); 6147 goto debug_failed; 6148 } 6149 atomic_set(&vport->disc_trc_cnt, 0); 6150 6151 snprintf(name, sizeof(name), "discovery_trace"); 6152 vport->debug_disc_trc = 6153 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6154 vport->vport_debugfs_root, 6155 vport, &lpfc_debugfs_op_disc_trc); 6156 snprintf(name, sizeof(name), "nodelist"); 6157 vport->debug_nodelist = 6158 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6159 vport->vport_debugfs_root, 6160 vport, &lpfc_debugfs_op_nodelist); 6161 6162 snprintf(name, sizeof(name), "nvmestat"); 6163 vport->debug_nvmestat = 6164 debugfs_create_file(name, 0644, 6165 vport->vport_debugfs_root, 6166 vport, &lpfc_debugfs_op_nvmestat); 6167 6168 snprintf(name, sizeof(name), "scsistat"); 6169 vport->debug_scsistat = 6170 debugfs_create_file(name, 0644, 6171 vport->vport_debugfs_root, 6172 vport, &lpfc_debugfs_op_scsistat); 6173 if (!vport->debug_scsistat) { 6174 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6175 "4611 Cannot create debugfs scsistat\n"); 6176 goto debug_failed; 6177 } 6178 6179 snprintf(name, sizeof(name), "ioktime"); 6180 vport->debug_ioktime = 6181 debugfs_create_file(name, 0644, 6182 vport->vport_debugfs_root, 6183 vport, &lpfc_debugfs_op_ioktime); 6184 if (!vport->debug_ioktime) { 6185 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6186 "0815 Cannot create debugfs ioktime\n"); 6187 goto debug_failed; 6188 } 6189 6190 snprintf(name, sizeof(name), "hdwqstat"); 6191 vport->debug_hdwqstat = 6192 debugfs_create_file(name, 0644, 6193 vport->vport_debugfs_root, 6194 vport, &lpfc_debugfs_op_hdwqstat); 6195 6196 /* 6197 * The following section is for additional directories/files for the 6198 * physical port. 6199 */ 6200 6201 if (!pport_setup) 6202 goto debug_failed; 6203 6204 /* 6205 * iDiag debugfs root entry points for SLI4 device only 6206 */ 6207 if (phba->sli_rev < LPFC_SLI_REV4) 6208 goto debug_failed; 6209 6210 snprintf(name, sizeof(name), "iDiag"); 6211 if (!phba->idiag_root) { 6212 phba->idiag_root = 6213 debugfs_create_dir(name, phba->hba_debugfs_root); 6214 /* Initialize iDiag data structure */ 6215 memset(&idiag, 0, sizeof(idiag)); 6216 } 6217 6218 /* iDiag read PCI config space */ 6219 snprintf(name, sizeof(name), "pciCfg"); 6220 if (!phba->idiag_pci_cfg) { 6221 phba->idiag_pci_cfg = 6222 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6223 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 6224 idiag.offset.last_rd = 0; 6225 } 6226 6227 /* iDiag PCI BAR access */ 6228 snprintf(name, sizeof(name), "barAcc"); 6229 if (!phba->idiag_bar_acc) { 6230 phba->idiag_bar_acc = 6231 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6232 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 6233 idiag.offset.last_rd = 0; 6234 } 6235 6236 /* iDiag get PCI function queue information */ 6237 snprintf(name, sizeof(name), "queInfo"); 6238 if (!phba->idiag_que_info) { 6239 phba->idiag_que_info = 6240 debugfs_create_file(name, S_IFREG|S_IRUGO, 6241 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 6242 } 6243 6244 /* iDiag access PCI function queue */ 6245 snprintf(name, sizeof(name), "queAcc"); 6246 if (!phba->idiag_que_acc) { 6247 phba->idiag_que_acc = 6248 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6249 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 6250 } 6251 6252 /* iDiag access PCI function doorbell registers */ 6253 snprintf(name, sizeof(name), "drbAcc"); 6254 if (!phba->idiag_drb_acc) { 6255 phba->idiag_drb_acc = 6256 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6257 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 6258 } 6259 6260 /* iDiag access PCI function control registers */ 6261 snprintf(name, sizeof(name), "ctlAcc"); 6262 if (!phba->idiag_ctl_acc) { 6263 phba->idiag_ctl_acc = 6264 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6265 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 6266 } 6267 6268 /* iDiag access mbox commands */ 6269 snprintf(name, sizeof(name), "mbxAcc"); 6270 if (!phba->idiag_mbx_acc) { 6271 phba->idiag_mbx_acc = 6272 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6273 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 6274 } 6275 6276 /* iDiag extents access commands */ 6277 if (phba->sli4_hba.extents_in_use) { 6278 snprintf(name, sizeof(name), "extAcc"); 6279 if (!phba->idiag_ext_acc) { 6280 phba->idiag_ext_acc = 6281 debugfs_create_file(name, 6282 S_IFREG|S_IRUGO|S_IWUSR, 6283 phba->idiag_root, phba, 6284 &lpfc_idiag_op_extAcc); 6285 } 6286 } 6287 6288 debug_failed: 6289 return; 6290 #endif 6291 } 6292 6293 /** 6294 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 6295 * @vport: The vport pointer to remove from debugfs. 6296 * 6297 * Description: 6298 * When Debugfs is configured this routine removes debugfs file system elements 6299 * that are specific to this vport. It also checks to see if there are any 6300 * users left for the debugfs directories associated with the HBA and driver. If 6301 * this is the last user of the HBA directory or driver directory then it will 6302 * remove those from the debugfs infrastructure as well. 6303 **/ 6304 inline void 6305 lpfc_debugfs_terminate(struct lpfc_vport *vport) 6306 { 6307 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6308 struct lpfc_hba *phba = vport->phba; 6309 6310 kfree(vport->disc_trc); 6311 vport->disc_trc = NULL; 6312 6313 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 6314 vport->debug_disc_trc = NULL; 6315 6316 debugfs_remove(vport->debug_nodelist); /* nodelist */ 6317 vport->debug_nodelist = NULL; 6318 6319 debugfs_remove(vport->debug_nvmestat); /* nvmestat */ 6320 vport->debug_nvmestat = NULL; 6321 6322 debugfs_remove(vport->debug_scsistat); /* scsistat */ 6323 vport->debug_scsistat = NULL; 6324 6325 debugfs_remove(vport->debug_ioktime); /* ioktime */ 6326 vport->debug_ioktime = NULL; 6327 6328 debugfs_remove(vport->debug_hdwqstat); /* hdwqstat */ 6329 vport->debug_hdwqstat = NULL; 6330 6331 if (vport->vport_debugfs_root) { 6332 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 6333 vport->vport_debugfs_root = NULL; 6334 atomic_dec(&phba->debugfs_vport_count); 6335 } 6336 6337 if (atomic_read(&phba->debugfs_vport_count) == 0) { 6338 6339 debugfs_remove(phba->debug_multixri_pools); /* multixripools*/ 6340 phba->debug_multixri_pools = NULL; 6341 6342 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 6343 phba->debug_hbqinfo = NULL; 6344 6345 debugfs_remove(phba->debug_ras_log); 6346 phba->debug_ras_log = NULL; 6347 6348 #ifdef LPFC_HDWQ_LOCK_STAT 6349 debugfs_remove(phba->debug_lockstat); /* lockstat */ 6350 phba->debug_lockstat = NULL; 6351 #endif 6352 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 6353 phba->debug_dumpHBASlim = NULL; 6354 6355 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 6356 phba->debug_dumpHostSlim = NULL; 6357 6358 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 6359 phba->debug_InjErrLBA = NULL; 6360 6361 debugfs_remove(phba->debug_InjErrNPortID); 6362 phba->debug_InjErrNPortID = NULL; 6363 6364 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 6365 phba->debug_InjErrWWPN = NULL; 6366 6367 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 6368 phba->debug_writeGuard = NULL; 6369 6370 debugfs_remove(phba->debug_writeApp); /* writeApp */ 6371 phba->debug_writeApp = NULL; 6372 6373 debugfs_remove(phba->debug_writeRef); /* writeRef */ 6374 phba->debug_writeRef = NULL; 6375 6376 debugfs_remove(phba->debug_readGuard); /* readGuard */ 6377 phba->debug_readGuard = NULL; 6378 6379 debugfs_remove(phba->debug_readApp); /* readApp */ 6380 phba->debug_readApp = NULL; 6381 6382 debugfs_remove(phba->debug_readRef); /* readRef */ 6383 phba->debug_readRef = NULL; 6384 6385 kfree(phba->slow_ring_trc); 6386 phba->slow_ring_trc = NULL; 6387 6388 /* slow_ring_trace */ 6389 debugfs_remove(phba->debug_slow_ring_trc); 6390 phba->debug_slow_ring_trc = NULL; 6391 6392 debugfs_remove(phba->debug_nvmeio_trc); 6393 phba->debug_nvmeio_trc = NULL; 6394 6395 kfree(phba->nvmeio_trc); 6396 phba->nvmeio_trc = NULL; 6397 6398 /* 6399 * iDiag release 6400 */ 6401 if (phba->sli_rev == LPFC_SLI_REV4) { 6402 /* iDiag extAcc */ 6403 debugfs_remove(phba->idiag_ext_acc); 6404 phba->idiag_ext_acc = NULL; 6405 6406 /* iDiag mbxAcc */ 6407 debugfs_remove(phba->idiag_mbx_acc); 6408 phba->idiag_mbx_acc = NULL; 6409 6410 /* iDiag ctlAcc */ 6411 debugfs_remove(phba->idiag_ctl_acc); 6412 phba->idiag_ctl_acc = NULL; 6413 6414 /* iDiag drbAcc */ 6415 debugfs_remove(phba->idiag_drb_acc); 6416 phba->idiag_drb_acc = NULL; 6417 6418 /* iDiag queAcc */ 6419 debugfs_remove(phba->idiag_que_acc); 6420 phba->idiag_que_acc = NULL; 6421 6422 /* iDiag queInfo */ 6423 debugfs_remove(phba->idiag_que_info); 6424 phba->idiag_que_info = NULL; 6425 6426 /* iDiag barAcc */ 6427 debugfs_remove(phba->idiag_bar_acc); 6428 phba->idiag_bar_acc = NULL; 6429 6430 /* iDiag pciCfg */ 6431 debugfs_remove(phba->idiag_pci_cfg); 6432 phba->idiag_pci_cfg = NULL; 6433 6434 /* Finally remove the iDiag debugfs root */ 6435 debugfs_remove(phba->idiag_root); 6436 phba->idiag_root = NULL; 6437 } 6438 6439 if (phba->hba_debugfs_root) { 6440 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 6441 phba->hba_debugfs_root = NULL; 6442 atomic_dec(&lpfc_debugfs_hba_count); 6443 } 6444 6445 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 6446 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 6447 lpfc_debugfs_root = NULL; 6448 } 6449 } 6450 #endif 6451 return; 6452 } 6453 6454 /* 6455 * Driver debug utility routines outside of debugfs. The debug utility 6456 * routines implemented here is intended to be used in the instrumented 6457 * debug driver for debugging host or port issues. 6458 */ 6459 6460 /** 6461 * lpfc_debug_dump_all_queues - dump all the queues with a hba 6462 * @phba: Pointer to HBA context object. 6463 * 6464 * This function dumps entries of all the queues asociated with the @phba. 6465 **/ 6466 void 6467 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 6468 { 6469 int idx; 6470 6471 /* 6472 * Dump Work Queues (WQs) 6473 */ 6474 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 6475 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 6476 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 6477 6478 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6479 lpfc_debug_dump_wq(phba, DUMP_IO, idx); 6480 6481 lpfc_debug_dump_hdr_rq(phba); 6482 lpfc_debug_dump_dat_rq(phba); 6483 /* 6484 * Dump Complete Queues (CQs) 6485 */ 6486 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 6487 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 6488 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 6489 6490 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6491 lpfc_debug_dump_cq(phba, DUMP_IO, idx); 6492 6493 /* 6494 * Dump Event Queues (EQs) 6495 */ 6496 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6497 lpfc_debug_dump_hba_eq(phba, idx); 6498 } 6499