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 ((dstbuf[0] == 'o') && (dstbuf[1] == 'f') && 2433 (dstbuf[2] == 'f')) 2434 tmp = (uint64_t)(-1); 2435 } 2436 2437 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) 2438 return 0; 2439 2440 if (dent == phba->debug_writeGuard) 2441 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 2442 else if (dent == phba->debug_writeApp) 2443 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 2444 else if (dent == phba->debug_writeRef) 2445 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 2446 else if (dent == phba->debug_readGuard) 2447 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 2448 else if (dent == phba->debug_readApp) 2449 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 2450 else if (dent == phba->debug_readRef) 2451 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 2452 else if (dent == phba->debug_InjErrLBA) 2453 phba->lpfc_injerr_lba = (sector_t)tmp; 2454 else if (dent == phba->debug_InjErrNPortID) 2455 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 2456 else if (dent == phba->debug_InjErrWWPN) { 2457 tmp = cpu_to_be64(tmp); 2458 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); 2459 } else 2460 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2461 "0548 Unknown debugfs error injection entry\n"); 2462 2463 return nbytes; 2464 } 2465 2466 static int 2467 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 2468 { 2469 return 0; 2470 } 2471 2472 /** 2473 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 2474 * @inode: The inode pointer that contains a vport pointer. 2475 * @file: The file pointer to attach the log output. 2476 * 2477 * Description: 2478 * This routine is the entry point for the debugfs open file operation. It gets 2479 * the vport from the i_private field in @inode, allocates the necessary buffer 2480 * for the log, fills the buffer from the in-memory log for this vport, and then 2481 * returns a pointer to that log in the private_data field in @file. 2482 * 2483 * Returns: 2484 * This function returns zero if successful. On error it will return a negative 2485 * error value. 2486 **/ 2487 static int 2488 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 2489 { 2490 struct lpfc_vport *vport = inode->i_private; 2491 struct lpfc_debug *debug; 2492 int rc = -ENOMEM; 2493 2494 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2495 if (!debug) 2496 goto out; 2497 2498 /* Round to page boundary */ 2499 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 2500 if (!debug->buffer) { 2501 kfree(debug); 2502 goto out; 2503 } 2504 2505 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 2506 LPFC_NODELIST_SIZE); 2507 file->private_data = debug; 2508 2509 rc = 0; 2510 out: 2511 return rc; 2512 } 2513 2514 /** 2515 * lpfc_debugfs_lseek - Seek through a debugfs file 2516 * @file: The file pointer to seek through. 2517 * @off: The offset to seek to or the amount to seek by. 2518 * @whence: Indicates how to seek. 2519 * 2520 * Description: 2521 * This routine is the entry point for the debugfs lseek file operation. The 2522 * @whence parameter indicates whether @off is the offset to directly seek to, 2523 * or if it is a value to seek forward or reverse by. This function figures out 2524 * what the new offset of the debugfs file will be and assigns that value to the 2525 * f_pos field of @file. 2526 * 2527 * Returns: 2528 * This function returns the new offset if successful and returns a negative 2529 * error if unable to process the seek. 2530 **/ 2531 static loff_t 2532 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 2533 { 2534 struct lpfc_debug *debug = file->private_data; 2535 return fixed_size_llseek(file, off, whence, debug->len); 2536 } 2537 2538 /** 2539 * lpfc_debugfs_read - Read a debugfs file 2540 * @file: The file pointer to read from. 2541 * @buf: The buffer to copy the data to. 2542 * @nbytes: The number of bytes to read. 2543 * @ppos: The position in the file to start reading from. 2544 * 2545 * Description: 2546 * This routine reads data from from the buffer indicated in the private_data 2547 * field of @file. It will start reading at @ppos and copy up to @nbytes of 2548 * data to @buf. 2549 * 2550 * Returns: 2551 * This function returns the amount of data that was read (this could be less 2552 * than @nbytes if the end of the file was reached) or a negative error value. 2553 **/ 2554 static ssize_t 2555 lpfc_debugfs_read(struct file *file, char __user *buf, 2556 size_t nbytes, loff_t *ppos) 2557 { 2558 struct lpfc_debug *debug = file->private_data; 2559 2560 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 2561 debug->len); 2562 } 2563 2564 /** 2565 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 2566 * @inode: The inode pointer that contains a vport pointer. (unused) 2567 * @file: The file pointer that contains the buffer to release. 2568 * 2569 * Description: 2570 * This routine frees the buffer that was allocated when the debugfs file was 2571 * opened. 2572 * 2573 * Returns: 2574 * This function returns zero. 2575 **/ 2576 static int 2577 lpfc_debugfs_release(struct inode *inode, struct file *file) 2578 { 2579 struct lpfc_debug *debug = file->private_data; 2580 2581 kfree(debug->buffer); 2582 kfree(debug); 2583 2584 return 0; 2585 } 2586 2587 /** 2588 * lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics 2589 * @file: The file pointer to read from. 2590 * @buf: The buffer to copy the user data from. 2591 * @nbytes: The number of bytes to get. 2592 * @ppos: The position in the file to start reading from. 2593 * 2594 * Description: 2595 * This routine clears multi-XRI pools statistics when buf contains "clear". 2596 * 2597 * Return Value: 2598 * It returns the @nbytges passing in from debugfs user space when successful. 2599 * In case of error conditions, it returns proper error code back to the user 2600 * space. 2601 **/ 2602 static ssize_t 2603 lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf, 2604 size_t nbytes, loff_t *ppos) 2605 { 2606 struct lpfc_debug *debug = file->private_data; 2607 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2608 char mybuf[64]; 2609 char *pbuf; 2610 u32 i; 2611 u32 hwq_count; 2612 struct lpfc_sli4_hdw_queue *qp; 2613 struct lpfc_multixri_pool *multixri_pool; 2614 2615 if (nbytes > 64) 2616 nbytes = 64; 2617 2618 memset(mybuf, 0, sizeof(mybuf)); 2619 2620 if (copy_from_user(mybuf, buf, nbytes)) 2621 return -EFAULT; 2622 pbuf = &mybuf[0]; 2623 2624 if ((strncmp(pbuf, "clear", strlen("clear"))) == 0) { 2625 hwq_count = phba->cfg_hdw_queue; 2626 for (i = 0; i < hwq_count; i++) { 2627 qp = &phba->sli4_hba.hdwq[i]; 2628 multixri_pool = qp->p_multixri_pool; 2629 if (!multixri_pool) 2630 continue; 2631 2632 qp->empty_io_bufs = 0; 2633 multixri_pool->pbl_empty_count = 0; 2634 #ifdef LPFC_MXP_STAT 2635 multixri_pool->above_limit_count = 0; 2636 multixri_pool->below_limit_count = 0; 2637 multixri_pool->stat_max_hwm = 0; 2638 multixri_pool->local_pbl_hit_count = 0; 2639 multixri_pool->other_pbl_hit_count = 0; 2640 2641 multixri_pool->stat_pbl_count = 0; 2642 multixri_pool->stat_pvt_count = 0; 2643 multixri_pool->stat_busy_count = 0; 2644 multixri_pool->stat_snapshot_taken = 0; 2645 #endif 2646 } 2647 return strlen(pbuf); 2648 } 2649 2650 return -EINVAL; 2651 } 2652 2653 static int 2654 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 2655 { 2656 struct lpfc_vport *vport = inode->i_private; 2657 struct lpfc_debug *debug; 2658 int rc = -ENOMEM; 2659 2660 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2661 if (!debug) 2662 goto out; 2663 2664 /* Round to page boundary */ 2665 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 2666 if (!debug->buffer) { 2667 kfree(debug); 2668 goto out; 2669 } 2670 2671 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 2672 LPFC_NVMESTAT_SIZE); 2673 2674 debug->i_private = inode->i_private; 2675 file->private_data = debug; 2676 2677 rc = 0; 2678 out: 2679 return rc; 2680 } 2681 2682 static ssize_t 2683 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 2684 size_t nbytes, loff_t *ppos) 2685 { 2686 struct lpfc_debug *debug = file->private_data; 2687 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2688 struct lpfc_hba *phba = vport->phba; 2689 struct lpfc_nvmet_tgtport *tgtp; 2690 char mybuf[64]; 2691 char *pbuf; 2692 2693 if (!phba->targetport) 2694 return -ENXIO; 2695 2696 if (nbytes > 64) 2697 nbytes = 64; 2698 2699 memset(mybuf, 0, sizeof(mybuf)); 2700 2701 if (copy_from_user(mybuf, buf, nbytes)) 2702 return -EFAULT; 2703 pbuf = &mybuf[0]; 2704 2705 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2706 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2707 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2708 atomic_set(&tgtp->rcv_ls_req_in, 0); 2709 atomic_set(&tgtp->rcv_ls_req_out, 0); 2710 atomic_set(&tgtp->rcv_ls_req_drop, 0); 2711 atomic_set(&tgtp->xmt_ls_abort, 0); 2712 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 2713 atomic_set(&tgtp->xmt_ls_rsp, 0); 2714 atomic_set(&tgtp->xmt_ls_drop, 0); 2715 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 2716 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 2717 2718 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 2719 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 2720 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 2721 atomic_set(&tgtp->xmt_fcp_drop, 0); 2722 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 2723 atomic_set(&tgtp->xmt_fcp_read, 0); 2724 atomic_set(&tgtp->xmt_fcp_write, 0); 2725 atomic_set(&tgtp->xmt_fcp_rsp, 0); 2726 atomic_set(&tgtp->xmt_fcp_release, 0); 2727 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 2728 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 2729 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 2730 2731 atomic_set(&tgtp->xmt_fcp_abort, 0); 2732 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 2733 atomic_set(&tgtp->xmt_abort_sol, 0); 2734 atomic_set(&tgtp->xmt_abort_unsol, 0); 2735 atomic_set(&tgtp->xmt_abort_rsp, 0); 2736 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 2737 } 2738 return nbytes; 2739 } 2740 2741 static int 2742 lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file) 2743 { 2744 struct lpfc_vport *vport = inode->i_private; 2745 struct lpfc_debug *debug; 2746 int rc = -ENOMEM; 2747 2748 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2749 if (!debug) 2750 goto out; 2751 2752 /* Round to page boundary */ 2753 debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL); 2754 if (!debug->buffer) { 2755 kfree(debug); 2756 goto out; 2757 } 2758 2759 debug->len = lpfc_debugfs_scsistat_data(vport, debug->buffer, 2760 LPFC_SCSISTAT_SIZE); 2761 2762 debug->i_private = inode->i_private; 2763 file->private_data = debug; 2764 2765 rc = 0; 2766 out: 2767 return rc; 2768 } 2769 2770 static ssize_t 2771 lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf, 2772 size_t nbytes, loff_t *ppos) 2773 { 2774 struct lpfc_debug *debug = file->private_data; 2775 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2776 struct lpfc_hba *phba = vport->phba; 2777 char mybuf[6] = {0}; 2778 int i; 2779 2780 if (copy_from_user(mybuf, buf, (nbytes >= sizeof(mybuf)) ? 2781 (sizeof(mybuf) - 1) : nbytes)) 2782 return -EFAULT; 2783 2784 if ((strncmp(&mybuf[0], "reset", strlen("reset")) == 0) || 2785 (strncmp(&mybuf[0], "zero", strlen("zero")) == 0)) { 2786 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2787 memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0, 2788 sizeof(phba->sli4_hba.hdwq[i].scsi_cstat)); 2789 } 2790 } 2791 2792 return nbytes; 2793 } 2794 2795 static int 2796 lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file) 2797 { 2798 struct lpfc_vport *vport = inode->i_private; 2799 struct lpfc_debug *debug; 2800 int rc = -ENOMEM; 2801 2802 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2803 if (!debug) 2804 goto out; 2805 2806 /* Round to page boundary */ 2807 debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL); 2808 if (!debug->buffer) { 2809 kfree(debug); 2810 goto out; 2811 } 2812 2813 debug->len = lpfc_debugfs_ioktime_data(vport, debug->buffer, 2814 LPFC_IOKTIME_SIZE); 2815 2816 debug->i_private = inode->i_private; 2817 file->private_data = debug; 2818 2819 rc = 0; 2820 out: 2821 return rc; 2822 } 2823 2824 static ssize_t 2825 lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf, 2826 size_t nbytes, loff_t *ppos) 2827 { 2828 struct lpfc_debug *debug = file->private_data; 2829 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2830 struct lpfc_hba *phba = vport->phba; 2831 char mybuf[64]; 2832 char *pbuf; 2833 2834 if (nbytes > 64) 2835 nbytes = 64; 2836 2837 memset(mybuf, 0, sizeof(mybuf)); 2838 2839 if (copy_from_user(mybuf, buf, nbytes)) 2840 return -EFAULT; 2841 pbuf = &mybuf[0]; 2842 2843 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2844 phba->ktime_data_samples = 0; 2845 phba->ktime_status_samples = 0; 2846 phba->ktime_seg1_total = 0; 2847 phba->ktime_seg1_max = 0; 2848 phba->ktime_seg1_min = 0xffffffff; 2849 phba->ktime_seg2_total = 0; 2850 phba->ktime_seg2_max = 0; 2851 phba->ktime_seg2_min = 0xffffffff; 2852 phba->ktime_seg3_total = 0; 2853 phba->ktime_seg3_max = 0; 2854 phba->ktime_seg3_min = 0xffffffff; 2855 phba->ktime_seg4_total = 0; 2856 phba->ktime_seg4_max = 0; 2857 phba->ktime_seg4_min = 0xffffffff; 2858 phba->ktime_seg5_total = 0; 2859 phba->ktime_seg5_max = 0; 2860 phba->ktime_seg5_min = 0xffffffff; 2861 phba->ktime_seg6_total = 0; 2862 phba->ktime_seg6_max = 0; 2863 phba->ktime_seg6_min = 0xffffffff; 2864 phba->ktime_seg7_total = 0; 2865 phba->ktime_seg7_max = 0; 2866 phba->ktime_seg7_min = 0xffffffff; 2867 phba->ktime_seg8_total = 0; 2868 phba->ktime_seg8_max = 0; 2869 phba->ktime_seg8_min = 0xffffffff; 2870 phba->ktime_seg9_total = 0; 2871 phba->ktime_seg9_max = 0; 2872 phba->ktime_seg9_min = 0xffffffff; 2873 phba->ktime_seg10_total = 0; 2874 phba->ktime_seg10_max = 0; 2875 phba->ktime_seg10_min = 0xffffffff; 2876 2877 phba->ktime_on = 1; 2878 return strlen(pbuf); 2879 } else if ((strncmp(pbuf, "off", 2880 sizeof("off") - 1) == 0)) { 2881 phba->ktime_on = 0; 2882 return strlen(pbuf); 2883 } else if ((strncmp(pbuf, "zero", 2884 sizeof("zero") - 1) == 0)) { 2885 phba->ktime_data_samples = 0; 2886 phba->ktime_status_samples = 0; 2887 phba->ktime_seg1_total = 0; 2888 phba->ktime_seg1_max = 0; 2889 phba->ktime_seg1_min = 0xffffffff; 2890 phba->ktime_seg2_total = 0; 2891 phba->ktime_seg2_max = 0; 2892 phba->ktime_seg2_min = 0xffffffff; 2893 phba->ktime_seg3_total = 0; 2894 phba->ktime_seg3_max = 0; 2895 phba->ktime_seg3_min = 0xffffffff; 2896 phba->ktime_seg4_total = 0; 2897 phba->ktime_seg4_max = 0; 2898 phba->ktime_seg4_min = 0xffffffff; 2899 phba->ktime_seg5_total = 0; 2900 phba->ktime_seg5_max = 0; 2901 phba->ktime_seg5_min = 0xffffffff; 2902 phba->ktime_seg6_total = 0; 2903 phba->ktime_seg6_max = 0; 2904 phba->ktime_seg6_min = 0xffffffff; 2905 phba->ktime_seg7_total = 0; 2906 phba->ktime_seg7_max = 0; 2907 phba->ktime_seg7_min = 0xffffffff; 2908 phba->ktime_seg8_total = 0; 2909 phba->ktime_seg8_max = 0; 2910 phba->ktime_seg8_min = 0xffffffff; 2911 phba->ktime_seg9_total = 0; 2912 phba->ktime_seg9_max = 0; 2913 phba->ktime_seg9_min = 0xffffffff; 2914 phba->ktime_seg10_total = 0; 2915 phba->ktime_seg10_max = 0; 2916 phba->ktime_seg10_min = 0xffffffff; 2917 return strlen(pbuf); 2918 } 2919 return -EINVAL; 2920 } 2921 2922 static int 2923 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2924 { 2925 struct lpfc_hba *phba = inode->i_private; 2926 struct lpfc_debug *debug; 2927 int rc = -ENOMEM; 2928 2929 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2930 if (!debug) 2931 goto out; 2932 2933 /* Round to page boundary */ 2934 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2935 if (!debug->buffer) { 2936 kfree(debug); 2937 goto out; 2938 } 2939 2940 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2941 LPFC_NVMEIO_TRC_SIZE); 2942 2943 debug->i_private = inode->i_private; 2944 file->private_data = debug; 2945 2946 rc = 0; 2947 out: 2948 return rc; 2949 } 2950 2951 static ssize_t 2952 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2953 size_t nbytes, loff_t *ppos) 2954 { 2955 struct lpfc_debug *debug = file->private_data; 2956 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2957 int i; 2958 unsigned long sz; 2959 char mybuf[64]; 2960 char *pbuf; 2961 2962 if (nbytes > 64) 2963 nbytes = 64; 2964 2965 memset(mybuf, 0, sizeof(mybuf)); 2966 2967 if (copy_from_user(mybuf, buf, nbytes)) 2968 return -EFAULT; 2969 pbuf = &mybuf[0]; 2970 2971 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2972 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2973 "0570 nvmeio_trc_off\n"); 2974 phba->nvmeio_trc_output_idx = 0; 2975 phba->nvmeio_trc_on = 0; 2976 return strlen(pbuf); 2977 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2978 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2979 "0571 nvmeio_trc_on\n"); 2980 phba->nvmeio_trc_output_idx = 0; 2981 phba->nvmeio_trc_on = 1; 2982 return strlen(pbuf); 2983 } 2984 2985 /* We must be off to allocate the trace buffer */ 2986 if (phba->nvmeio_trc_on != 0) 2987 return -EINVAL; 2988 2989 /* If not on or off, the parameter is the trace buffer size */ 2990 i = kstrtoul(pbuf, 0, &sz); 2991 if (i) 2992 return -EINVAL; 2993 phba->nvmeio_trc_size = (uint32_t)sz; 2994 2995 /* It must be a power of 2 - round down */ 2996 i = 0; 2997 while (sz > 1) { 2998 sz = sz >> 1; 2999 i++; 3000 } 3001 sz = (1 << i); 3002 if (phba->nvmeio_trc_size != sz) 3003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3004 "0572 nvmeio_trc_size changed to %ld\n", 3005 sz); 3006 phba->nvmeio_trc_size = (uint32_t)sz; 3007 3008 /* If one previously exists, free it */ 3009 kfree(phba->nvmeio_trc); 3010 3011 /* Allocate new trace buffer and initialize */ 3012 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 3013 sz), GFP_KERNEL); 3014 if (!phba->nvmeio_trc) { 3015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3016 "0573 Cannot create debugfs " 3017 "nvmeio_trc buffer\n"); 3018 return -ENOMEM; 3019 } 3020 atomic_set(&phba->nvmeio_trc_cnt, 0); 3021 phba->nvmeio_trc_on = 0; 3022 phba->nvmeio_trc_output_idx = 0; 3023 3024 return strlen(pbuf); 3025 } 3026 3027 static int 3028 lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file) 3029 { 3030 struct lpfc_vport *vport = inode->i_private; 3031 struct lpfc_debug *debug; 3032 int rc = -ENOMEM; 3033 3034 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3035 if (!debug) 3036 goto out; 3037 3038 /* Round to page boundary */ 3039 debug->buffer = kcalloc(1, LPFC_SCSISTAT_SIZE, GFP_KERNEL); 3040 if (!debug->buffer) { 3041 kfree(debug); 3042 goto out; 3043 } 3044 3045 debug->len = lpfc_debugfs_hdwqstat_data(vport, debug->buffer, 3046 LPFC_SCSISTAT_SIZE); 3047 3048 debug->i_private = inode->i_private; 3049 file->private_data = debug; 3050 3051 rc = 0; 3052 out: 3053 return rc; 3054 } 3055 3056 static ssize_t 3057 lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf, 3058 size_t nbytes, loff_t *ppos) 3059 { 3060 struct lpfc_debug *debug = file->private_data; 3061 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 3062 struct lpfc_hba *phba = vport->phba; 3063 struct lpfc_hdwq_stat *c_stat; 3064 char mybuf[64]; 3065 char *pbuf; 3066 int i; 3067 3068 if (nbytes > 64) 3069 nbytes = 64; 3070 3071 memset(mybuf, 0, sizeof(mybuf)); 3072 3073 if (copy_from_user(mybuf, buf, nbytes)) 3074 return -EFAULT; 3075 pbuf = &mybuf[0]; 3076 3077 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 3078 if (phba->nvmet_support) 3079 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3080 else 3081 phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO | 3082 LPFC_CHECK_SCSI_IO); 3083 return strlen(pbuf); 3084 } else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) { 3085 if (phba->nvmet_support) 3086 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3087 else 3088 phba->hdwqstat_on |= LPFC_CHECK_NVME_IO; 3089 return strlen(pbuf); 3090 } else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) { 3091 if (!phba->nvmet_support) 3092 phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO; 3093 return strlen(pbuf); 3094 } else if ((strncmp(pbuf, "nvme_off", sizeof("nvme_off") - 1) == 0)) { 3095 phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO | 3096 LPFC_CHECK_NVMET_IO); 3097 return strlen(pbuf); 3098 } else if ((strncmp(pbuf, "scsi_off", sizeof("scsi_off") - 1) == 0)) { 3099 phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO; 3100 return strlen(pbuf); 3101 } else if ((strncmp(pbuf, "off", 3102 sizeof("off") - 1) == 0)) { 3103 phba->hdwqstat_on = LPFC_CHECK_OFF; 3104 return strlen(pbuf); 3105 } else if ((strncmp(pbuf, "zero", 3106 sizeof("zero") - 1) == 0)) { 3107 for_each_present_cpu(i) { 3108 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i); 3109 c_stat->xmt_io = 0; 3110 c_stat->cmpl_io = 0; 3111 c_stat->rcv_io = 0; 3112 } 3113 return strlen(pbuf); 3114 } 3115 return -EINVAL; 3116 } 3117 3118 /* 3119 * --------------------------------- 3120 * iDiag debugfs file access methods 3121 * --------------------------------- 3122 * 3123 * All access methods are through the proper SLI4 PCI function's debugfs 3124 * iDiag directory: 3125 * 3126 * /sys/kernel/debug/lpfc/fn<#>/iDiag 3127 */ 3128 3129 /** 3130 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 3131 * @buf: The pointer to the user space buffer. 3132 * @nbytes: The number of bytes in the user space buffer. 3133 * @idiag_cmd: pointer to the idiag command struct. 3134 * 3135 * This routine reads data from debugfs user space buffer and parses the 3136 * buffer for getting the idiag command and arguments. The while space in 3137 * between the set of data is used as the parsing separator. 3138 * 3139 * This routine returns 0 when successful, it returns proper error code 3140 * back to the user space in error conditions. 3141 */ 3142 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 3143 struct lpfc_idiag_cmd *idiag_cmd) 3144 { 3145 char mybuf[64]; 3146 char *pbuf, *step_str; 3147 int i; 3148 size_t bsize; 3149 3150 memset(mybuf, 0, sizeof(mybuf)); 3151 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 3152 bsize = min(nbytes, (sizeof(mybuf)-1)); 3153 3154 if (copy_from_user(mybuf, buf, bsize)) 3155 return -EFAULT; 3156 pbuf = &mybuf[0]; 3157 step_str = strsep(&pbuf, "\t "); 3158 3159 /* The opcode must present */ 3160 if (!step_str) 3161 return -EINVAL; 3162 3163 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 3164 if (idiag_cmd->opcode == 0) 3165 return -EINVAL; 3166 3167 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 3168 step_str = strsep(&pbuf, "\t "); 3169 if (!step_str) 3170 return i; 3171 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 3172 } 3173 return i; 3174 } 3175 3176 /** 3177 * lpfc_idiag_open - idiag open debugfs 3178 * @inode: The inode pointer that contains a pointer to phba. 3179 * @file: The file pointer to attach the file operation. 3180 * 3181 * Description: 3182 * This routine is the entry point for the debugfs open file operation. It 3183 * gets the reference to phba from the i_private field in @inode, it then 3184 * allocates buffer for the file operation, performs the necessary PCI config 3185 * space read into the allocated buffer according to the idiag user command 3186 * setup, and then returns a pointer to buffer in the private_data field in 3187 * @file. 3188 * 3189 * Returns: 3190 * This function returns zero if successful. On error it will return an 3191 * negative error value. 3192 **/ 3193 static int 3194 lpfc_idiag_open(struct inode *inode, struct file *file) 3195 { 3196 struct lpfc_debug *debug; 3197 3198 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3199 if (!debug) 3200 return -ENOMEM; 3201 3202 debug->i_private = inode->i_private; 3203 debug->buffer = NULL; 3204 file->private_data = debug; 3205 3206 return 0; 3207 } 3208 3209 /** 3210 * lpfc_idiag_release - Release idiag access file operation 3211 * @inode: The inode pointer that contains a vport pointer. (unused) 3212 * @file: The file pointer that contains the buffer to release. 3213 * 3214 * Description: 3215 * This routine is the generic release routine for the idiag access file 3216 * operation, it frees the buffer that was allocated when the debugfs file 3217 * was opened. 3218 * 3219 * Returns: 3220 * This function returns zero. 3221 **/ 3222 static int 3223 lpfc_idiag_release(struct inode *inode, struct file *file) 3224 { 3225 struct lpfc_debug *debug = file->private_data; 3226 3227 /* Free the buffers to the file operation */ 3228 kfree(debug->buffer); 3229 kfree(debug); 3230 3231 return 0; 3232 } 3233 3234 /** 3235 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 3236 * @inode: The inode pointer that contains a vport pointer. (unused) 3237 * @file: The file pointer that contains the buffer to release. 3238 * 3239 * Description: 3240 * This routine frees the buffer that was allocated when the debugfs file 3241 * was opened. It also reset the fields in the idiag command struct in the 3242 * case of command for write operation. 3243 * 3244 * Returns: 3245 * This function returns zero. 3246 **/ 3247 static int 3248 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 3249 { 3250 struct lpfc_debug *debug = file->private_data; 3251 3252 if (debug->op == LPFC_IDIAG_OP_WR) { 3253 switch (idiag.cmd.opcode) { 3254 case LPFC_IDIAG_CMD_PCICFG_WR: 3255 case LPFC_IDIAG_CMD_PCICFG_ST: 3256 case LPFC_IDIAG_CMD_PCICFG_CL: 3257 case LPFC_IDIAG_CMD_QUEACC_WR: 3258 case LPFC_IDIAG_CMD_QUEACC_ST: 3259 case LPFC_IDIAG_CMD_QUEACC_CL: 3260 memset(&idiag, 0, sizeof(idiag)); 3261 break; 3262 default: 3263 break; 3264 } 3265 } 3266 3267 /* Free the buffers to the file operation */ 3268 kfree(debug->buffer); 3269 kfree(debug); 3270 3271 return 0; 3272 } 3273 3274 /** 3275 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 3276 * @file: The file pointer to read from. 3277 * @buf: The buffer to copy the data to. 3278 * @nbytes: The number of bytes to read. 3279 * @ppos: The position in the file to start reading from. 3280 * 3281 * Description: 3282 * This routine reads data from the @phba pci config space according to the 3283 * idiag command, and copies to user @buf. Depending on the PCI config space 3284 * read command setup, it does either a single register read of a byte 3285 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 3286 * registers from the 4K extended PCI config space. 3287 * 3288 * Returns: 3289 * This function returns the amount of data that was read (this could be less 3290 * than @nbytes if the end of the file was reached) or a negative error value. 3291 **/ 3292 static ssize_t 3293 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 3294 loff_t *ppos) 3295 { 3296 struct lpfc_debug *debug = file->private_data; 3297 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3298 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 3299 int where, count; 3300 char *pbuffer; 3301 struct pci_dev *pdev; 3302 uint32_t u32val; 3303 uint16_t u16val; 3304 uint8_t u8val; 3305 3306 pdev = phba->pcidev; 3307 if (!pdev) 3308 return 0; 3309 3310 /* This is a user read operation */ 3311 debug->op = LPFC_IDIAG_OP_RD; 3312 3313 if (!debug->buffer) 3314 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 3315 if (!debug->buffer) 3316 return 0; 3317 pbuffer = debug->buffer; 3318 3319 if (*ppos) 3320 return 0; 3321 3322 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3323 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3324 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3325 } else 3326 return 0; 3327 3328 /* Read single PCI config space register */ 3329 switch (count) { 3330 case SIZE_U8: /* byte (8 bits) */ 3331 pci_read_config_byte(pdev, where, &u8val); 3332 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3333 "%03x: %02x\n", where, u8val); 3334 break; 3335 case SIZE_U16: /* word (16 bits) */ 3336 pci_read_config_word(pdev, where, &u16val); 3337 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3338 "%03x: %04x\n", where, u16val); 3339 break; 3340 case SIZE_U32: /* double word (32 bits) */ 3341 pci_read_config_dword(pdev, where, &u32val); 3342 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3343 "%03x: %08x\n", where, u32val); 3344 break; 3345 case LPFC_PCI_CFG_BROWSE: /* browse all */ 3346 goto pcicfg_browse; 3347 break; 3348 default: 3349 /* illegal count */ 3350 len = 0; 3351 break; 3352 } 3353 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3354 3355 pcicfg_browse: 3356 3357 /* Browse all PCI config space registers */ 3358 offset_label = idiag.offset.last_rd; 3359 offset = offset_label; 3360 3361 /* Read PCI config space */ 3362 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3363 "%03x: ", offset_label); 3364 while (index > 0) { 3365 pci_read_config_dword(pdev, offset, &u32val); 3366 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3367 "%08x ", u32val); 3368 offset += sizeof(uint32_t); 3369 if (offset >= LPFC_PCI_CFG_SIZE) { 3370 len += scnprintf(pbuffer+len, 3371 LPFC_PCI_CFG_SIZE-len, "\n"); 3372 break; 3373 } 3374 index -= sizeof(uint32_t); 3375 if (!index) 3376 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3377 "\n"); 3378 else if (!(index % (8 * sizeof(uint32_t)))) { 3379 offset_label += (8 * sizeof(uint32_t)); 3380 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3381 "\n%03x: ", offset_label); 3382 } 3383 } 3384 3385 /* Set up the offset for next portion of pci cfg read */ 3386 if (index == 0) { 3387 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 3388 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 3389 idiag.offset.last_rd = 0; 3390 } else 3391 idiag.offset.last_rd = 0; 3392 3393 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3394 } 3395 3396 /** 3397 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 3398 * @file: The file pointer to read from. 3399 * @buf: The buffer to copy the user data from. 3400 * @nbytes: The number of bytes to get. 3401 * @ppos: The position in the file to start reading from. 3402 * 3403 * This routine get the debugfs idiag command struct from user space and 3404 * then perform the syntax check for PCI config space read or write command 3405 * accordingly. In the case of PCI config space read command, it sets up 3406 * the command in the idiag command struct for the debugfs read operation. 3407 * In the case of PCI config space write operation, it executes the write 3408 * operation into the PCI config space accordingly. 3409 * 3410 * It returns the @nbytges passing in from debugfs user space when successful. 3411 * In case of error conditions, it returns proper error code back to the user 3412 * space. 3413 */ 3414 static ssize_t 3415 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 3416 size_t nbytes, loff_t *ppos) 3417 { 3418 struct lpfc_debug *debug = file->private_data; 3419 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3420 uint32_t where, value, count; 3421 uint32_t u32val; 3422 uint16_t u16val; 3423 uint8_t u8val; 3424 struct pci_dev *pdev; 3425 int rc; 3426 3427 pdev = phba->pcidev; 3428 if (!pdev) 3429 return -EFAULT; 3430 3431 /* This is a user write operation */ 3432 debug->op = LPFC_IDIAG_OP_WR; 3433 3434 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3435 if (rc < 0) 3436 return rc; 3437 3438 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3439 /* Sanity check on PCI config read command line arguments */ 3440 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 3441 goto error_out; 3442 /* Read command from PCI config space, set up command fields */ 3443 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3444 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3445 if (count == LPFC_PCI_CFG_BROWSE) { 3446 if (where % sizeof(uint32_t)) 3447 goto error_out; 3448 /* Starting offset to browse */ 3449 idiag.offset.last_rd = where; 3450 } else if ((count != sizeof(uint8_t)) && 3451 (count != sizeof(uint16_t)) && 3452 (count != sizeof(uint32_t))) 3453 goto error_out; 3454 if (count == sizeof(uint8_t)) { 3455 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3456 goto error_out; 3457 if (where % sizeof(uint8_t)) 3458 goto error_out; 3459 } 3460 if (count == sizeof(uint16_t)) { 3461 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3462 goto error_out; 3463 if (where % sizeof(uint16_t)) 3464 goto error_out; 3465 } 3466 if (count == sizeof(uint32_t)) { 3467 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3468 goto error_out; 3469 if (where % sizeof(uint32_t)) 3470 goto error_out; 3471 } 3472 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 3473 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 3474 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3475 /* Sanity check on PCI config write command line arguments */ 3476 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 3477 goto error_out; 3478 /* Write command to PCI config space, read-modify-write */ 3479 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3480 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3481 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 3482 /* Sanity checks */ 3483 if ((count != sizeof(uint8_t)) && 3484 (count != sizeof(uint16_t)) && 3485 (count != sizeof(uint32_t))) 3486 goto error_out; 3487 if (count == sizeof(uint8_t)) { 3488 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3489 goto error_out; 3490 if (where % sizeof(uint8_t)) 3491 goto error_out; 3492 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3493 pci_write_config_byte(pdev, where, 3494 (uint8_t)value); 3495 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3496 rc = pci_read_config_byte(pdev, where, &u8val); 3497 if (!rc) { 3498 u8val |= (uint8_t)value; 3499 pci_write_config_byte(pdev, where, 3500 u8val); 3501 } 3502 } 3503 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3504 rc = pci_read_config_byte(pdev, where, &u8val); 3505 if (!rc) { 3506 u8val &= (uint8_t)(~value); 3507 pci_write_config_byte(pdev, where, 3508 u8val); 3509 } 3510 } 3511 } 3512 if (count == sizeof(uint16_t)) { 3513 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3514 goto error_out; 3515 if (where % sizeof(uint16_t)) 3516 goto error_out; 3517 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3518 pci_write_config_word(pdev, where, 3519 (uint16_t)value); 3520 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3521 rc = pci_read_config_word(pdev, where, &u16val); 3522 if (!rc) { 3523 u16val |= (uint16_t)value; 3524 pci_write_config_word(pdev, where, 3525 u16val); 3526 } 3527 } 3528 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3529 rc = pci_read_config_word(pdev, where, &u16val); 3530 if (!rc) { 3531 u16val &= (uint16_t)(~value); 3532 pci_write_config_word(pdev, where, 3533 u16val); 3534 } 3535 } 3536 } 3537 if (count == sizeof(uint32_t)) { 3538 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3539 goto error_out; 3540 if (where % sizeof(uint32_t)) 3541 goto error_out; 3542 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3543 pci_write_config_dword(pdev, where, value); 3544 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3545 rc = pci_read_config_dword(pdev, where, 3546 &u32val); 3547 if (!rc) { 3548 u32val |= value; 3549 pci_write_config_dword(pdev, where, 3550 u32val); 3551 } 3552 } 3553 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3554 rc = pci_read_config_dword(pdev, where, 3555 &u32val); 3556 if (!rc) { 3557 u32val &= ~value; 3558 pci_write_config_dword(pdev, where, 3559 u32val); 3560 } 3561 } 3562 } 3563 } else 3564 /* All other opecodes are illegal for now */ 3565 goto error_out; 3566 3567 return nbytes; 3568 error_out: 3569 memset(&idiag, 0, sizeof(idiag)); 3570 return -EINVAL; 3571 } 3572 3573 /** 3574 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 3575 * @file: The file pointer to read from. 3576 * @buf: The buffer to copy the data to. 3577 * @nbytes: The number of bytes to read. 3578 * @ppos: The position in the file to start reading from. 3579 * 3580 * Description: 3581 * This routine reads data from the @phba pci bar memory mapped space 3582 * according to the idiag command, and copies to user @buf. 3583 * 3584 * Returns: 3585 * This function returns the amount of data that was read (this could be less 3586 * than @nbytes if the end of the file was reached) or a negative error value. 3587 **/ 3588 static ssize_t 3589 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 3590 loff_t *ppos) 3591 { 3592 struct lpfc_debug *debug = file->private_data; 3593 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3594 int offset_label, offset, offset_run, len = 0, index; 3595 int bar_num, acc_range, bar_size; 3596 char *pbuffer; 3597 void __iomem *mem_mapped_bar; 3598 uint32_t if_type; 3599 struct pci_dev *pdev; 3600 uint32_t u32val; 3601 3602 pdev = phba->pcidev; 3603 if (!pdev) 3604 return 0; 3605 3606 /* This is a user read operation */ 3607 debug->op = LPFC_IDIAG_OP_RD; 3608 3609 if (!debug->buffer) 3610 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 3611 if (!debug->buffer) 3612 return 0; 3613 pbuffer = debug->buffer; 3614 3615 if (*ppos) 3616 return 0; 3617 3618 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3619 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3620 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3621 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3622 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3623 } else 3624 return 0; 3625 3626 if (acc_range == 0) 3627 return 0; 3628 3629 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3630 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3631 if (bar_num == IDIAG_BARACC_BAR_0) 3632 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3633 else if (bar_num == IDIAG_BARACC_BAR_1) 3634 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3635 else if (bar_num == IDIAG_BARACC_BAR_2) 3636 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3637 else 3638 return 0; 3639 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3640 if (bar_num == IDIAG_BARACC_BAR_0) 3641 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3642 else 3643 return 0; 3644 } else 3645 return 0; 3646 3647 /* Read single PCI bar space register */ 3648 if (acc_range == SINGLE_WORD) { 3649 offset_run = offset; 3650 u32val = readl(mem_mapped_bar + offset_run); 3651 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3652 "%05x: %08x\n", offset_run, u32val); 3653 } else 3654 goto baracc_browse; 3655 3656 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3657 3658 baracc_browse: 3659 3660 /* Browse all PCI bar space registers */ 3661 offset_label = idiag.offset.last_rd; 3662 offset_run = offset_label; 3663 3664 /* Read PCI bar memory mapped space */ 3665 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3666 "%05x: ", offset_label); 3667 index = LPFC_PCI_BAR_RD_SIZE; 3668 while (index > 0) { 3669 u32val = readl(mem_mapped_bar + offset_run); 3670 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3671 "%08x ", u32val); 3672 offset_run += sizeof(uint32_t); 3673 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3674 if (offset_run >= bar_size) { 3675 len += scnprintf(pbuffer+len, 3676 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3677 break; 3678 } 3679 } else { 3680 if (offset_run >= offset + 3681 (acc_range * sizeof(uint32_t))) { 3682 len += scnprintf(pbuffer+len, 3683 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3684 break; 3685 } 3686 } 3687 index -= sizeof(uint32_t); 3688 if (!index) 3689 len += scnprintf(pbuffer+len, 3690 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3691 else if (!(index % (8 * sizeof(uint32_t)))) { 3692 offset_label += (8 * sizeof(uint32_t)); 3693 len += scnprintf(pbuffer+len, 3694 LPFC_PCI_BAR_RD_BUF_SIZE-len, 3695 "\n%05x: ", offset_label); 3696 } 3697 } 3698 3699 /* Set up the offset for next portion of pci bar read */ 3700 if (index == 0) { 3701 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 3702 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3703 if (idiag.offset.last_rd >= bar_size) 3704 idiag.offset.last_rd = 0; 3705 } else { 3706 if (offset_run >= offset + 3707 (acc_range * sizeof(uint32_t))) 3708 idiag.offset.last_rd = offset; 3709 } 3710 } else { 3711 if (acc_range == LPFC_PCI_BAR_BROWSE) 3712 idiag.offset.last_rd = 0; 3713 else 3714 idiag.offset.last_rd = offset; 3715 } 3716 3717 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3718 } 3719 3720 /** 3721 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 3722 * @file: The file pointer to read from. 3723 * @buf: The buffer to copy the user data from. 3724 * @nbytes: The number of bytes to get. 3725 * @ppos: The position in the file to start reading from. 3726 * 3727 * This routine get the debugfs idiag command struct from user space and 3728 * then perform the syntax check for PCI bar memory mapped space read or 3729 * write command accordingly. In the case of PCI bar memory mapped space 3730 * read command, it sets up the command in the idiag command struct for 3731 * the debugfs read operation. In the case of PCI bar memorpy mapped space 3732 * write operation, it executes the write operation into the PCI bar memory 3733 * mapped space accordingly. 3734 * 3735 * It returns the @nbytges passing in from debugfs user space when successful. 3736 * In case of error conditions, it returns proper error code back to the user 3737 * space. 3738 */ 3739 static ssize_t 3740 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 3741 size_t nbytes, loff_t *ppos) 3742 { 3743 struct lpfc_debug *debug = file->private_data; 3744 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3745 uint32_t bar_num, bar_size, offset, value, acc_range; 3746 struct pci_dev *pdev; 3747 void __iomem *mem_mapped_bar; 3748 uint32_t if_type; 3749 uint32_t u32val; 3750 int rc; 3751 3752 pdev = phba->pcidev; 3753 if (!pdev) 3754 return -EFAULT; 3755 3756 /* This is a user write operation */ 3757 debug->op = LPFC_IDIAG_OP_WR; 3758 3759 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3760 if (rc < 0) 3761 return rc; 3762 3763 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3764 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3765 3766 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3767 if ((bar_num != IDIAG_BARACC_BAR_0) && 3768 (bar_num != IDIAG_BARACC_BAR_1) && 3769 (bar_num != IDIAG_BARACC_BAR_2)) 3770 goto error_out; 3771 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3772 if (bar_num != IDIAG_BARACC_BAR_0) 3773 goto error_out; 3774 } else 3775 goto error_out; 3776 3777 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3778 if (bar_num == IDIAG_BARACC_BAR_0) { 3779 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3780 LPFC_PCI_IF0_BAR0_SIZE; 3781 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3782 } else if (bar_num == IDIAG_BARACC_BAR_1) { 3783 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3784 LPFC_PCI_IF0_BAR1_SIZE; 3785 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3786 } else if (bar_num == IDIAG_BARACC_BAR_2) { 3787 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3788 LPFC_PCI_IF0_BAR2_SIZE; 3789 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3790 } else 3791 goto error_out; 3792 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3793 if (bar_num == IDIAG_BARACC_BAR_0) { 3794 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3795 LPFC_PCI_IF2_BAR0_SIZE; 3796 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3797 } else 3798 goto error_out; 3799 } else 3800 goto error_out; 3801 3802 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3803 if (offset % sizeof(uint32_t)) 3804 goto error_out; 3805 3806 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3807 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3808 /* Sanity check on PCI config read command line arguments */ 3809 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3810 goto error_out; 3811 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3812 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3813 if (offset > bar_size - sizeof(uint32_t)) 3814 goto error_out; 3815 /* Starting offset to browse */ 3816 idiag.offset.last_rd = offset; 3817 } else if (acc_range > SINGLE_WORD) { 3818 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3819 goto error_out; 3820 /* Starting offset to browse */ 3821 idiag.offset.last_rd = offset; 3822 } else if (acc_range != SINGLE_WORD) 3823 goto error_out; 3824 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3825 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3826 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3827 /* Sanity check on PCI bar write command line arguments */ 3828 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3829 goto error_out; 3830 /* Write command to PCI bar space, read-modify-write */ 3831 acc_range = SINGLE_WORD; 3832 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3833 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3834 writel(value, mem_mapped_bar + offset); 3835 readl(mem_mapped_bar + offset); 3836 } 3837 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3838 u32val = readl(mem_mapped_bar + offset); 3839 u32val |= value; 3840 writel(u32val, mem_mapped_bar + offset); 3841 readl(mem_mapped_bar + offset); 3842 } 3843 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3844 u32val = readl(mem_mapped_bar + offset); 3845 u32val &= ~value; 3846 writel(u32val, mem_mapped_bar + offset); 3847 readl(mem_mapped_bar + offset); 3848 } 3849 } else 3850 /* All other opecodes are illegal for now */ 3851 goto error_out; 3852 3853 return nbytes; 3854 error_out: 3855 memset(&idiag, 0, sizeof(idiag)); 3856 return -EINVAL; 3857 } 3858 3859 static int 3860 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3861 char *pbuffer, int len) 3862 { 3863 if (!qp) 3864 return len; 3865 3866 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3867 "\t\t%s WQ info: ", wqtype); 3868 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3869 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3870 qp->assoc_qid, qp->q_cnt_1, 3871 (unsigned long long)qp->q_cnt_4); 3872 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3873 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3874 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]", 3875 qp->queue_id, qp->entry_count, 3876 qp->entry_size, qp->host_index, 3877 qp->hba_index, qp->notify_interval); 3878 len += scnprintf(pbuffer + len, 3879 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3880 return len; 3881 } 3882 3883 static int 3884 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3885 int *len, int max_cnt, int cq_id) 3886 { 3887 struct lpfc_queue *qp; 3888 int qidx; 3889 3890 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 3891 qp = phba->sli4_hba.hdwq[qidx].io_wq; 3892 if (qp->assoc_qid != cq_id) 3893 continue; 3894 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3895 if (*len >= max_cnt) 3896 return 1; 3897 } 3898 return 0; 3899 } 3900 3901 static int 3902 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3903 char *pbuffer, int len) 3904 { 3905 if (!qp) 3906 return len; 3907 3908 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3909 "\t%s CQ info: ", cqtype); 3910 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3911 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3912 "xabt:x%x wq:x%llx]\n", 3913 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3914 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3915 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3916 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3917 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d]", 3918 qp->queue_id, qp->entry_count, 3919 qp->entry_size, qp->host_index, 3920 qp->notify_interval, qp->max_proc_limit); 3921 3922 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3923 "\n"); 3924 3925 return len; 3926 } 3927 3928 static int 3929 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3930 char *rqtype, char *pbuffer, int len) 3931 { 3932 if (!qp || !datqp) 3933 return len; 3934 3935 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3936 "\t\t%s RQ info: ", rqtype); 3937 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3938 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3939 "posted:x%x rcv:x%llx]\n", 3940 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3941 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3942 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3943 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3944 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3945 qp->queue_id, qp->entry_count, qp->entry_size, 3946 qp->host_index, qp->hba_index, qp->notify_interval); 3947 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3948 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3949 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3950 datqp->queue_id, datqp->entry_count, 3951 datqp->entry_size, datqp->host_index, 3952 datqp->hba_index, datqp->notify_interval); 3953 return len; 3954 } 3955 3956 static int 3957 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3958 int *len, int max_cnt, int eqidx, int eq_id) 3959 { 3960 struct lpfc_queue *qp; 3961 int rc; 3962 3963 qp = phba->sli4_hba.hdwq[eqidx].io_cq; 3964 3965 *len = __lpfc_idiag_print_cq(qp, "IO", pbuffer, *len); 3966 3967 /* Reset max counter */ 3968 qp->CQ_max_cqe = 0; 3969 3970 if (*len >= max_cnt) 3971 return 1; 3972 3973 rc = lpfc_idiag_wqs_for_cq(phba, "IO", pbuffer, len, 3974 max_cnt, qp->queue_id); 3975 if (rc) 3976 return 1; 3977 3978 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) { 3979 /* NVMET CQset */ 3980 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 3981 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 3982 3983 /* Reset max counter */ 3984 qp->CQ_max_cqe = 0; 3985 3986 if (*len >= max_cnt) 3987 return 1; 3988 3989 /* RQ header */ 3990 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 3991 *len = __lpfc_idiag_print_rqpair(qp, 3992 phba->sli4_hba.nvmet_mrq_data[eqidx], 3993 "NVMET MRQ", pbuffer, *len); 3994 3995 if (*len >= max_cnt) 3996 return 1; 3997 } 3998 3999 return 0; 4000 } 4001 4002 static int 4003 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 4004 char *pbuffer, int len) 4005 { 4006 if (!qp) 4007 return len; 4008 4009 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4010 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 4011 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n", 4012 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 4013 (unsigned long long)qp->q_cnt_4, qp->q_mode); 4014 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4015 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 4016 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]", 4017 qp->queue_id, qp->entry_count, qp->entry_size, 4018 qp->host_index, qp->notify_interval, 4019 qp->max_proc_limit, qp->chann); 4020 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4021 "\n"); 4022 4023 return len; 4024 } 4025 4026 /** 4027 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 4028 * @file: The file pointer to read from. 4029 * @buf: The buffer to copy the data to. 4030 * @nbytes: The number of bytes to read. 4031 * @ppos: The position in the file to start reading from. 4032 * 4033 * Description: 4034 * This routine reads data from the @phba SLI4 PCI function queue information, 4035 * and copies to user @buf. 4036 * This routine only returns 1 EQs worth of information. It remembers the last 4037 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 4038 * retrieve all EQs allocated for the phba. 4039 * 4040 * Returns: 4041 * This function returns the amount of data that was read (this could be less 4042 * than @nbytes if the end of the file was reached) or a negative error value. 4043 **/ 4044 static ssize_t 4045 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 4046 loff_t *ppos) 4047 { 4048 struct lpfc_debug *debug = file->private_data; 4049 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4050 char *pbuffer; 4051 int max_cnt, rc, x, len = 0; 4052 struct lpfc_queue *qp = NULL; 4053 4054 if (!debug->buffer) 4055 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 4056 if (!debug->buffer) 4057 return 0; 4058 pbuffer = debug->buffer; 4059 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 4060 4061 if (*ppos) 4062 return 0; 4063 4064 spin_lock_irq(&phba->hbalock); 4065 4066 /* Fast-path event queue */ 4067 if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) { 4068 4069 x = phba->lpfc_idiag_last_eq; 4070 phba->lpfc_idiag_last_eq++; 4071 if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue) 4072 phba->lpfc_idiag_last_eq = 0; 4073 4074 len += scnprintf(pbuffer + len, 4075 LPFC_QUE_INFO_GET_BUF_SIZE - len, 4076 "HDWQ %d out of %d HBA HDWQs\n", 4077 x, phba->cfg_hdw_queue); 4078 4079 /* Fast-path EQ */ 4080 qp = phba->sli4_hba.hdwq[x].hba_eq; 4081 if (!qp) 4082 goto out; 4083 4084 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 4085 4086 /* Reset max counter */ 4087 qp->EQ_max_eqe = 0; 4088 4089 if (len >= max_cnt) 4090 goto too_big; 4091 4092 /* will dump both fcp and nvme cqs/wqs for the eq */ 4093 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 4094 max_cnt, x, qp->queue_id); 4095 if (rc) 4096 goto too_big; 4097 4098 /* Only EQ 0 has slow path CQs configured */ 4099 if (x) 4100 goto out; 4101 4102 /* Slow-path mailbox CQ */ 4103 qp = phba->sli4_hba.mbx_cq; 4104 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 4105 if (len >= max_cnt) 4106 goto too_big; 4107 4108 /* Slow-path MBOX MQ */ 4109 qp = phba->sli4_hba.mbx_wq; 4110 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 4111 if (len >= max_cnt) 4112 goto too_big; 4113 4114 /* Slow-path ELS response CQ */ 4115 qp = phba->sli4_hba.els_cq; 4116 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 4117 /* Reset max counter */ 4118 if (qp) 4119 qp->CQ_max_cqe = 0; 4120 if (len >= max_cnt) 4121 goto too_big; 4122 4123 /* Slow-path ELS WQ */ 4124 qp = phba->sli4_hba.els_wq; 4125 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 4126 if (len >= max_cnt) 4127 goto too_big; 4128 4129 qp = phba->sli4_hba.hdr_rq; 4130 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 4131 "ELS RQpair", pbuffer, len); 4132 if (len >= max_cnt) 4133 goto too_big; 4134 4135 /* Slow-path NVME LS response CQ */ 4136 qp = phba->sli4_hba.nvmels_cq; 4137 len = __lpfc_idiag_print_cq(qp, "NVME LS", 4138 pbuffer, len); 4139 /* Reset max counter */ 4140 if (qp) 4141 qp->CQ_max_cqe = 0; 4142 if (len >= max_cnt) 4143 goto too_big; 4144 4145 /* Slow-path NVME LS WQ */ 4146 qp = phba->sli4_hba.nvmels_wq; 4147 len = __lpfc_idiag_print_wq(qp, "NVME LS", 4148 pbuffer, len); 4149 if (len >= max_cnt) 4150 goto too_big; 4151 4152 goto out; 4153 } 4154 4155 spin_unlock_irq(&phba->hbalock); 4156 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4157 4158 too_big: 4159 len += scnprintf(pbuffer + len, 4160 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 4161 out: 4162 spin_unlock_irq(&phba->hbalock); 4163 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4164 } 4165 4166 /** 4167 * lpfc_idiag_que_param_check - queue access command parameter sanity check 4168 * @q: The pointer to queue structure. 4169 * @index: The index into a queue entry. 4170 * @count: The number of queue entries to access. 4171 * 4172 * Description: 4173 * The routine performs sanity check on device queue access method commands. 4174 * 4175 * Returns: 4176 * This function returns -EINVAL when fails the sanity check, otherwise, it 4177 * returns 0. 4178 **/ 4179 static int 4180 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 4181 { 4182 /* Only support single entry read or browsing */ 4183 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 4184 return -EINVAL; 4185 if (index > q->entry_count - 1) 4186 return -EINVAL; 4187 return 0; 4188 } 4189 4190 /** 4191 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 4192 * @pbuffer: The pointer to buffer to copy the read data into. 4193 * @pque: The pointer to the queue to be read. 4194 * @index: The index into the queue entry. 4195 * 4196 * Description: 4197 * This routine reads out a single entry from the given queue's index location 4198 * and copies it into the buffer provided. 4199 * 4200 * Returns: 4201 * This function returns 0 when it fails, otherwise, it returns the length of 4202 * the data read into the buffer provided. 4203 **/ 4204 static int 4205 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 4206 uint32_t index) 4207 { 4208 int offset, esize; 4209 uint32_t *pentry; 4210 4211 if (!pbuffer || !pque) 4212 return 0; 4213 4214 esize = pque->entry_size; 4215 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4216 "QE-INDEX[%04d]:\n", index); 4217 4218 offset = 0; 4219 pentry = lpfc_sli4_qe(pque, index); 4220 while (esize > 0) { 4221 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4222 "%08x ", *pentry); 4223 pentry++; 4224 offset += sizeof(uint32_t); 4225 esize -= sizeof(uint32_t); 4226 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 4227 len += scnprintf(pbuffer+len, 4228 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4229 } 4230 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4231 4232 return len; 4233 } 4234 4235 /** 4236 * lpfc_idiag_queacc_read - idiag debugfs read port queue 4237 * @file: The file pointer to read from. 4238 * @buf: The buffer to copy the data to. 4239 * @nbytes: The number of bytes to read. 4240 * @ppos: The position in the file to start reading from. 4241 * 4242 * Description: 4243 * This routine reads data from the @phba device queue memory according to the 4244 * idiag command, and copies to user @buf. Depending on the queue dump read 4245 * command setup, it does either a single queue entry read or browing through 4246 * all entries of the queue. 4247 * 4248 * Returns: 4249 * This function returns the amount of data that was read (this could be less 4250 * than @nbytes if the end of the file was reached) or a negative error value. 4251 **/ 4252 static ssize_t 4253 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 4254 loff_t *ppos) 4255 { 4256 struct lpfc_debug *debug = file->private_data; 4257 uint32_t last_index, index, count; 4258 struct lpfc_queue *pque = NULL; 4259 char *pbuffer; 4260 int len = 0; 4261 4262 /* This is a user read operation */ 4263 debug->op = LPFC_IDIAG_OP_RD; 4264 4265 if (!debug->buffer) 4266 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 4267 if (!debug->buffer) 4268 return 0; 4269 pbuffer = debug->buffer; 4270 4271 if (*ppos) 4272 return 0; 4273 4274 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4275 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4276 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4277 pque = (struct lpfc_queue *)idiag.ptr_private; 4278 } else 4279 return 0; 4280 4281 /* Browse the queue starting from index */ 4282 if (count == LPFC_QUE_ACC_BROWSE) 4283 goto que_browse; 4284 4285 /* Read a single entry from the queue */ 4286 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4287 4288 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4289 4290 que_browse: 4291 4292 /* Browse all entries from the queue */ 4293 last_index = idiag.offset.last_rd; 4294 index = last_index; 4295 4296 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 4297 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4298 index++; 4299 if (index > pque->entry_count - 1) 4300 break; 4301 } 4302 4303 /* Set up the offset for next portion of pci cfg read */ 4304 if (index > pque->entry_count - 1) 4305 index = 0; 4306 idiag.offset.last_rd = index; 4307 4308 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4309 } 4310 4311 /** 4312 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 4313 * @file: The file pointer to read from. 4314 * @buf: The buffer to copy the user data from. 4315 * @nbytes: The number of bytes to get. 4316 * @ppos: The position in the file to start reading from. 4317 * 4318 * This routine get the debugfs idiag command struct from user space and then 4319 * perform the syntax check for port queue read (dump) or write (set) command 4320 * accordingly. In the case of port queue read command, it sets up the command 4321 * in the idiag command struct for the following debugfs read operation. In 4322 * the case of port queue write operation, it executes the write operation 4323 * into the port queue entry accordingly. 4324 * 4325 * It returns the @nbytges passing in from debugfs user space when successful. 4326 * In case of error conditions, it returns proper error code back to the user 4327 * space. 4328 **/ 4329 static ssize_t 4330 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 4331 size_t nbytes, loff_t *ppos) 4332 { 4333 struct lpfc_debug *debug = file->private_data; 4334 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4335 uint32_t qidx, quetp, queid, index, count, offset, value; 4336 uint32_t *pentry; 4337 struct lpfc_queue *pque, *qp; 4338 int rc; 4339 4340 /* This is a user write operation */ 4341 debug->op = LPFC_IDIAG_OP_WR; 4342 4343 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4344 if (rc < 0) 4345 return rc; 4346 4347 /* Get and sanity check on command feilds */ 4348 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 4349 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 4350 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4351 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4352 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 4353 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 4354 4355 /* Sanity check on command line arguments */ 4356 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4357 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4358 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4359 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 4360 goto error_out; 4361 if (count != 1) 4362 goto error_out; 4363 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4364 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 4365 goto error_out; 4366 } else 4367 goto error_out; 4368 4369 switch (quetp) { 4370 case LPFC_IDIAG_EQ: 4371 /* HBA event queue */ 4372 if (phba->sli4_hba.hdwq) { 4373 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4374 qp = phba->sli4_hba.hdwq[qidx].hba_eq; 4375 if (qp && qp->queue_id == queid) { 4376 /* Sanity check */ 4377 rc = lpfc_idiag_que_param_check(qp, 4378 index, count); 4379 if (rc) 4380 goto error_out; 4381 idiag.ptr_private = qp; 4382 goto pass_check; 4383 } 4384 } 4385 } 4386 goto error_out; 4387 break; 4388 case LPFC_IDIAG_CQ: 4389 /* MBX complete queue */ 4390 if (phba->sli4_hba.mbx_cq && 4391 phba->sli4_hba.mbx_cq->queue_id == queid) { 4392 /* Sanity check */ 4393 rc = lpfc_idiag_que_param_check( 4394 phba->sli4_hba.mbx_cq, index, count); 4395 if (rc) 4396 goto error_out; 4397 idiag.ptr_private = phba->sli4_hba.mbx_cq; 4398 goto pass_check; 4399 } 4400 /* ELS complete queue */ 4401 if (phba->sli4_hba.els_cq && 4402 phba->sli4_hba.els_cq->queue_id == queid) { 4403 /* Sanity check */ 4404 rc = lpfc_idiag_que_param_check( 4405 phba->sli4_hba.els_cq, index, count); 4406 if (rc) 4407 goto error_out; 4408 idiag.ptr_private = phba->sli4_hba.els_cq; 4409 goto pass_check; 4410 } 4411 /* NVME LS complete queue */ 4412 if (phba->sli4_hba.nvmels_cq && 4413 phba->sli4_hba.nvmels_cq->queue_id == queid) { 4414 /* Sanity check */ 4415 rc = lpfc_idiag_que_param_check( 4416 phba->sli4_hba.nvmels_cq, index, count); 4417 if (rc) 4418 goto error_out; 4419 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 4420 goto pass_check; 4421 } 4422 /* FCP complete queue */ 4423 if (phba->sli4_hba.hdwq) { 4424 for (qidx = 0; qidx < phba->cfg_hdw_queue; 4425 qidx++) { 4426 qp = phba->sli4_hba.hdwq[qidx].io_cq; 4427 if (qp && qp->queue_id == queid) { 4428 /* Sanity check */ 4429 rc = lpfc_idiag_que_param_check( 4430 qp, index, count); 4431 if (rc) 4432 goto error_out; 4433 idiag.ptr_private = qp; 4434 goto pass_check; 4435 } 4436 } 4437 } 4438 goto error_out; 4439 break; 4440 case LPFC_IDIAG_MQ: 4441 /* MBX work queue */ 4442 if (phba->sli4_hba.mbx_wq && 4443 phba->sli4_hba.mbx_wq->queue_id == queid) { 4444 /* Sanity check */ 4445 rc = lpfc_idiag_que_param_check( 4446 phba->sli4_hba.mbx_wq, index, count); 4447 if (rc) 4448 goto error_out; 4449 idiag.ptr_private = phba->sli4_hba.mbx_wq; 4450 goto pass_check; 4451 } 4452 goto error_out; 4453 break; 4454 case LPFC_IDIAG_WQ: 4455 /* ELS work queue */ 4456 if (phba->sli4_hba.els_wq && 4457 phba->sli4_hba.els_wq->queue_id == queid) { 4458 /* Sanity check */ 4459 rc = lpfc_idiag_que_param_check( 4460 phba->sli4_hba.els_wq, index, count); 4461 if (rc) 4462 goto error_out; 4463 idiag.ptr_private = phba->sli4_hba.els_wq; 4464 goto pass_check; 4465 } 4466 /* NVME LS work queue */ 4467 if (phba->sli4_hba.nvmels_wq && 4468 phba->sli4_hba.nvmels_wq->queue_id == queid) { 4469 /* Sanity check */ 4470 rc = lpfc_idiag_que_param_check( 4471 phba->sli4_hba.nvmels_wq, index, count); 4472 if (rc) 4473 goto error_out; 4474 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 4475 goto pass_check; 4476 } 4477 4478 if (phba->sli4_hba.hdwq) { 4479 /* FCP/SCSI work queue */ 4480 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4481 qp = phba->sli4_hba.hdwq[qidx].io_wq; 4482 if (qp && qp->queue_id == queid) { 4483 /* Sanity check */ 4484 rc = lpfc_idiag_que_param_check( 4485 qp, index, count); 4486 if (rc) 4487 goto error_out; 4488 idiag.ptr_private = qp; 4489 goto pass_check; 4490 } 4491 } 4492 } 4493 4494 goto error_out; 4495 break; 4496 case LPFC_IDIAG_RQ: 4497 /* HDR queue */ 4498 if (phba->sli4_hba.hdr_rq && 4499 phba->sli4_hba.hdr_rq->queue_id == queid) { 4500 /* Sanity check */ 4501 rc = lpfc_idiag_que_param_check( 4502 phba->sli4_hba.hdr_rq, index, count); 4503 if (rc) 4504 goto error_out; 4505 idiag.ptr_private = phba->sli4_hba.hdr_rq; 4506 goto pass_check; 4507 } 4508 /* DAT queue */ 4509 if (phba->sli4_hba.dat_rq && 4510 phba->sli4_hba.dat_rq->queue_id == queid) { 4511 /* Sanity check */ 4512 rc = lpfc_idiag_que_param_check( 4513 phba->sli4_hba.dat_rq, index, count); 4514 if (rc) 4515 goto error_out; 4516 idiag.ptr_private = phba->sli4_hba.dat_rq; 4517 goto pass_check; 4518 } 4519 goto error_out; 4520 break; 4521 default: 4522 goto error_out; 4523 break; 4524 } 4525 4526 pass_check: 4527 4528 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4529 if (count == LPFC_QUE_ACC_BROWSE) 4530 idiag.offset.last_rd = index; 4531 } 4532 4533 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4534 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4535 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4536 /* Additional sanity checks on write operation */ 4537 pque = (struct lpfc_queue *)idiag.ptr_private; 4538 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 4539 goto error_out; 4540 pentry = lpfc_sli4_qe(pque, index); 4541 pentry += offset; 4542 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 4543 *pentry = value; 4544 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 4545 *pentry |= value; 4546 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 4547 *pentry &= ~value; 4548 } 4549 return nbytes; 4550 4551 error_out: 4552 /* Clean out command structure on command error out */ 4553 memset(&idiag, 0, sizeof(idiag)); 4554 return -EINVAL; 4555 } 4556 4557 /** 4558 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 4559 * @phba: The pointer to hba structure. 4560 * @pbuffer: The pointer to the buffer to copy the data to. 4561 * @len: The length of bytes to copied. 4562 * @drbregid: The id to doorbell registers. 4563 * 4564 * Description: 4565 * This routine reads a doorbell register and copies its content to the 4566 * user buffer pointed to by @pbuffer. 4567 * 4568 * Returns: 4569 * This function returns the amount of data that was copied into @pbuffer. 4570 **/ 4571 static int 4572 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4573 int len, uint32_t drbregid) 4574 { 4575 4576 if (!pbuffer) 4577 return 0; 4578 4579 switch (drbregid) { 4580 case LPFC_DRB_EQ: 4581 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len, 4582 "EQ-DRB-REG: 0x%08x\n", 4583 readl(phba->sli4_hba.EQDBregaddr)); 4584 break; 4585 case LPFC_DRB_CQ: 4586 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len, 4587 "CQ-DRB-REG: 0x%08x\n", 4588 readl(phba->sli4_hba.CQDBregaddr)); 4589 break; 4590 case LPFC_DRB_MQ: 4591 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4592 "MQ-DRB-REG: 0x%08x\n", 4593 readl(phba->sli4_hba.MQDBregaddr)); 4594 break; 4595 case LPFC_DRB_WQ: 4596 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4597 "WQ-DRB-REG: 0x%08x\n", 4598 readl(phba->sli4_hba.WQDBregaddr)); 4599 break; 4600 case LPFC_DRB_RQ: 4601 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4602 "RQ-DRB-REG: 0x%08x\n", 4603 readl(phba->sli4_hba.RQDBregaddr)); 4604 break; 4605 default: 4606 break; 4607 } 4608 4609 return len; 4610 } 4611 4612 /** 4613 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 4614 * @file: The file pointer to read from. 4615 * @buf: The buffer to copy the data to. 4616 * @nbytes: The number of bytes to read. 4617 * @ppos: The position in the file to start reading from. 4618 * 4619 * Description: 4620 * This routine reads data from the @phba device doorbell register according 4621 * to the idiag command, and copies to user @buf. Depending on the doorbell 4622 * register read command setup, it does either a single doorbell register 4623 * read or dump all doorbell registers. 4624 * 4625 * Returns: 4626 * This function returns the amount of data that was read (this could be less 4627 * than @nbytes if the end of the file was reached) or a negative error value. 4628 **/ 4629 static ssize_t 4630 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 4631 loff_t *ppos) 4632 { 4633 struct lpfc_debug *debug = file->private_data; 4634 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4635 uint32_t drb_reg_id, i; 4636 char *pbuffer; 4637 int len = 0; 4638 4639 /* This is a user read operation */ 4640 debug->op = LPFC_IDIAG_OP_RD; 4641 4642 if (!debug->buffer) 4643 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 4644 if (!debug->buffer) 4645 return 0; 4646 pbuffer = debug->buffer; 4647 4648 if (*ppos) 4649 return 0; 4650 4651 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 4652 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4653 else 4654 return 0; 4655 4656 if (drb_reg_id == LPFC_DRB_ACC_ALL) 4657 for (i = 1; i <= LPFC_DRB_MAX; i++) 4658 len = lpfc_idiag_drbacc_read_reg(phba, 4659 pbuffer, len, i); 4660 else 4661 len = lpfc_idiag_drbacc_read_reg(phba, 4662 pbuffer, len, drb_reg_id); 4663 4664 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4665 } 4666 4667 /** 4668 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 4669 * @file: The file pointer to read from. 4670 * @buf: The buffer to copy the user data from. 4671 * @nbytes: The number of bytes to get. 4672 * @ppos: The position in the file to start reading from. 4673 * 4674 * This routine get the debugfs idiag command struct from user space and then 4675 * perform the syntax check for port doorbell register read (dump) or write 4676 * (set) command accordingly. In the case of port queue read command, it sets 4677 * up the command in the idiag command struct for the following debugfs read 4678 * operation. In the case of port doorbell register write operation, it 4679 * executes the write operation into the port doorbell register accordingly. 4680 * 4681 * It returns the @nbytges passing in from debugfs user space when successful. 4682 * In case of error conditions, it returns proper error code back to the user 4683 * space. 4684 **/ 4685 static ssize_t 4686 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 4687 size_t nbytes, loff_t *ppos) 4688 { 4689 struct lpfc_debug *debug = file->private_data; 4690 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4691 uint32_t drb_reg_id, value, reg_val = 0; 4692 void __iomem *drb_reg; 4693 int rc; 4694 4695 /* This is a user write operation */ 4696 debug->op = LPFC_IDIAG_OP_WR; 4697 4698 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4699 if (rc < 0) 4700 return rc; 4701 4702 /* Sanity check on command line arguments */ 4703 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4704 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4705 4706 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4707 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4708 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4709 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4710 goto error_out; 4711 if (drb_reg_id > LPFC_DRB_MAX) 4712 goto error_out; 4713 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4714 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4715 goto error_out; 4716 if ((drb_reg_id > LPFC_DRB_MAX) && 4717 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4718 goto error_out; 4719 } else 4720 goto error_out; 4721 4722 /* Perform the write access operation */ 4723 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4724 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4725 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4726 switch (drb_reg_id) { 4727 case LPFC_DRB_EQ: 4728 drb_reg = phba->sli4_hba.EQDBregaddr; 4729 break; 4730 case LPFC_DRB_CQ: 4731 drb_reg = phba->sli4_hba.CQDBregaddr; 4732 break; 4733 case LPFC_DRB_MQ: 4734 drb_reg = phba->sli4_hba.MQDBregaddr; 4735 break; 4736 case LPFC_DRB_WQ: 4737 drb_reg = phba->sli4_hba.WQDBregaddr; 4738 break; 4739 case LPFC_DRB_RQ: 4740 drb_reg = phba->sli4_hba.RQDBregaddr; 4741 break; 4742 default: 4743 goto error_out; 4744 } 4745 4746 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4747 reg_val = value; 4748 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4749 reg_val = readl(drb_reg); 4750 reg_val |= value; 4751 } 4752 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4753 reg_val = readl(drb_reg); 4754 reg_val &= ~value; 4755 } 4756 writel(reg_val, drb_reg); 4757 readl(drb_reg); /* flush */ 4758 } 4759 return nbytes; 4760 4761 error_out: 4762 /* Clean out command structure on command error out */ 4763 memset(&idiag, 0, sizeof(idiag)); 4764 return -EINVAL; 4765 } 4766 4767 /** 4768 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4769 * @phba: The pointer to hba structure. 4770 * @pbuffer: The pointer to the buffer to copy the data to. 4771 * @len: The length of bytes to copied. 4772 * @drbregid: The id to doorbell registers. 4773 * 4774 * Description: 4775 * This routine reads a control register and copies its content to the 4776 * user buffer pointed to by @pbuffer. 4777 * 4778 * Returns: 4779 * This function returns the amount of data that was copied into @pbuffer. 4780 **/ 4781 static int 4782 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4783 int len, uint32_t ctlregid) 4784 { 4785 4786 if (!pbuffer) 4787 return 0; 4788 4789 switch (ctlregid) { 4790 case LPFC_CTL_PORT_SEM: 4791 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4792 "Port SemReg: 0x%08x\n", 4793 readl(phba->sli4_hba.conf_regs_memmap_p + 4794 LPFC_CTL_PORT_SEM_OFFSET)); 4795 break; 4796 case LPFC_CTL_PORT_STA: 4797 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4798 "Port StaReg: 0x%08x\n", 4799 readl(phba->sli4_hba.conf_regs_memmap_p + 4800 LPFC_CTL_PORT_STA_OFFSET)); 4801 break; 4802 case LPFC_CTL_PORT_CTL: 4803 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4804 "Port CtlReg: 0x%08x\n", 4805 readl(phba->sli4_hba.conf_regs_memmap_p + 4806 LPFC_CTL_PORT_CTL_OFFSET)); 4807 break; 4808 case LPFC_CTL_PORT_ER1: 4809 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4810 "Port Er1Reg: 0x%08x\n", 4811 readl(phba->sli4_hba.conf_regs_memmap_p + 4812 LPFC_CTL_PORT_ER1_OFFSET)); 4813 break; 4814 case LPFC_CTL_PORT_ER2: 4815 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4816 "Port Er2Reg: 0x%08x\n", 4817 readl(phba->sli4_hba.conf_regs_memmap_p + 4818 LPFC_CTL_PORT_ER2_OFFSET)); 4819 break; 4820 case LPFC_CTL_PDEV_CTL: 4821 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4822 "PDev CtlReg: 0x%08x\n", 4823 readl(phba->sli4_hba.conf_regs_memmap_p + 4824 LPFC_CTL_PDEV_CTL_OFFSET)); 4825 break; 4826 default: 4827 break; 4828 } 4829 return len; 4830 } 4831 4832 /** 4833 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4834 * @file: The file pointer to read from. 4835 * @buf: The buffer to copy the data to. 4836 * @nbytes: The number of bytes to read. 4837 * @ppos: The position in the file to start reading from. 4838 * 4839 * Description: 4840 * This routine reads data from the @phba port and device registers according 4841 * to the idiag command, and copies to user @buf. 4842 * 4843 * Returns: 4844 * This function returns the amount of data that was read (this could be less 4845 * than @nbytes if the end of the file was reached) or a negative error value. 4846 **/ 4847 static ssize_t 4848 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4849 loff_t *ppos) 4850 { 4851 struct lpfc_debug *debug = file->private_data; 4852 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4853 uint32_t ctl_reg_id, i; 4854 char *pbuffer; 4855 int len = 0; 4856 4857 /* This is a user read operation */ 4858 debug->op = LPFC_IDIAG_OP_RD; 4859 4860 if (!debug->buffer) 4861 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4862 if (!debug->buffer) 4863 return 0; 4864 pbuffer = debug->buffer; 4865 4866 if (*ppos) 4867 return 0; 4868 4869 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4870 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4871 else 4872 return 0; 4873 4874 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4875 for (i = 1; i <= LPFC_CTL_MAX; i++) 4876 len = lpfc_idiag_ctlacc_read_reg(phba, 4877 pbuffer, len, i); 4878 else 4879 len = lpfc_idiag_ctlacc_read_reg(phba, 4880 pbuffer, len, ctl_reg_id); 4881 4882 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4883 } 4884 4885 /** 4886 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4887 * @file: The file pointer to read from. 4888 * @buf: The buffer to copy the user data from. 4889 * @nbytes: The number of bytes to get. 4890 * @ppos: The position in the file to start reading from. 4891 * 4892 * This routine get the debugfs idiag command struct from user space and then 4893 * perform the syntax check for port and device control register read (dump) 4894 * or write (set) command accordingly. 4895 * 4896 * It returns the @nbytges passing in from debugfs user space when successful. 4897 * In case of error conditions, it returns proper error code back to the user 4898 * space. 4899 **/ 4900 static ssize_t 4901 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4902 size_t nbytes, loff_t *ppos) 4903 { 4904 struct lpfc_debug *debug = file->private_data; 4905 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4906 uint32_t ctl_reg_id, value, reg_val = 0; 4907 void __iomem *ctl_reg; 4908 int rc; 4909 4910 /* This is a user write operation */ 4911 debug->op = LPFC_IDIAG_OP_WR; 4912 4913 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4914 if (rc < 0) 4915 return rc; 4916 4917 /* Sanity check on command line arguments */ 4918 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4919 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4920 4921 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4922 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4923 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4924 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4925 goto error_out; 4926 if (ctl_reg_id > LPFC_CTL_MAX) 4927 goto error_out; 4928 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4929 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4930 goto error_out; 4931 if ((ctl_reg_id > LPFC_CTL_MAX) && 4932 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4933 goto error_out; 4934 } else 4935 goto error_out; 4936 4937 /* Perform the write access operation */ 4938 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4939 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4940 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4941 switch (ctl_reg_id) { 4942 case LPFC_CTL_PORT_SEM: 4943 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4944 LPFC_CTL_PORT_SEM_OFFSET; 4945 break; 4946 case LPFC_CTL_PORT_STA: 4947 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4948 LPFC_CTL_PORT_STA_OFFSET; 4949 break; 4950 case LPFC_CTL_PORT_CTL: 4951 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4952 LPFC_CTL_PORT_CTL_OFFSET; 4953 break; 4954 case LPFC_CTL_PORT_ER1: 4955 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4956 LPFC_CTL_PORT_ER1_OFFSET; 4957 break; 4958 case LPFC_CTL_PORT_ER2: 4959 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4960 LPFC_CTL_PORT_ER2_OFFSET; 4961 break; 4962 case LPFC_CTL_PDEV_CTL: 4963 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4964 LPFC_CTL_PDEV_CTL_OFFSET; 4965 break; 4966 default: 4967 goto error_out; 4968 } 4969 4970 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4971 reg_val = value; 4972 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4973 reg_val = readl(ctl_reg); 4974 reg_val |= value; 4975 } 4976 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4977 reg_val = readl(ctl_reg); 4978 reg_val &= ~value; 4979 } 4980 writel(reg_val, ctl_reg); 4981 readl(ctl_reg); /* flush */ 4982 } 4983 return nbytes; 4984 4985 error_out: 4986 /* Clean out command structure on command error out */ 4987 memset(&idiag, 0, sizeof(idiag)); 4988 return -EINVAL; 4989 } 4990 4991 /** 4992 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 4993 * @phba: Pointer to HBA context object. 4994 * @pbuffer: Pointer to data buffer. 4995 * 4996 * Description: 4997 * This routine gets the driver mailbox access debugfs setup information. 4998 * 4999 * Returns: 5000 * This function returns the amount of data that was read (this could be less 5001 * than @nbytes if the end of the file was reached) or a negative error value. 5002 **/ 5003 static int 5004 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 5005 { 5006 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5007 int len = 0; 5008 5009 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5010 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5011 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5012 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5013 5014 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5015 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 5016 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5017 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 5018 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5019 "mbx_word_cnt: %04d\n", mbx_word_cnt); 5020 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5021 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 5022 5023 return len; 5024 } 5025 5026 /** 5027 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 5028 * @file: The file pointer to read from. 5029 * @buf: The buffer to copy the data to. 5030 * @nbytes: The number of bytes to read. 5031 * @ppos: The position in the file to start reading from. 5032 * 5033 * Description: 5034 * This routine reads data from the @phba driver mailbox access debugfs setup 5035 * information. 5036 * 5037 * Returns: 5038 * This function returns the amount of data that was read (this could be less 5039 * than @nbytes if the end of the file was reached) or a negative error value. 5040 **/ 5041 static ssize_t 5042 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 5043 loff_t *ppos) 5044 { 5045 struct lpfc_debug *debug = file->private_data; 5046 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5047 char *pbuffer; 5048 int len = 0; 5049 5050 /* This is a user read operation */ 5051 debug->op = LPFC_IDIAG_OP_RD; 5052 5053 if (!debug->buffer) 5054 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 5055 if (!debug->buffer) 5056 return 0; 5057 pbuffer = debug->buffer; 5058 5059 if (*ppos) 5060 return 0; 5061 5062 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 5063 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 5064 return 0; 5065 5066 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 5067 5068 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5069 } 5070 5071 /** 5072 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 5073 * @file: The file pointer to read from. 5074 * @buf: The buffer to copy the user data from. 5075 * @nbytes: The number of bytes to get. 5076 * @ppos: The position in the file to start reading from. 5077 * 5078 * This routine get the debugfs idiag command struct from user space and then 5079 * perform the syntax check for driver mailbox command (dump) and sets up the 5080 * necessary states in the idiag command struct accordingly. 5081 * 5082 * It returns the @nbytges passing in from debugfs user space when successful. 5083 * In case of error conditions, it returns proper error code back to the user 5084 * space. 5085 **/ 5086 static ssize_t 5087 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 5088 size_t nbytes, loff_t *ppos) 5089 { 5090 struct lpfc_debug *debug = file->private_data; 5091 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5092 int rc; 5093 5094 /* This is a user write operation */ 5095 debug->op = LPFC_IDIAG_OP_WR; 5096 5097 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5098 if (rc < 0) 5099 return rc; 5100 5101 /* Sanity check on command line arguments */ 5102 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5103 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5104 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5105 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5106 5107 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 5108 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 5109 goto error_out; 5110 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 5111 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5112 goto error_out; 5113 if (mbx_word_cnt > sizeof(MAILBOX_t)) 5114 goto error_out; 5115 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 5116 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 5117 goto error_out; 5118 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 5119 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5120 goto error_out; 5121 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 5122 goto error_out; 5123 if (mbx_mbox_cmd != 0x9b) 5124 goto error_out; 5125 } else 5126 goto error_out; 5127 5128 if (mbx_word_cnt == 0) 5129 goto error_out; 5130 if (rc != LPFC_MBX_DMP_ARG) 5131 goto error_out; 5132 if (mbx_mbox_cmd & ~0xff) 5133 goto error_out; 5134 5135 /* condition for stop mailbox dump */ 5136 if (mbx_dump_cnt == 0) 5137 goto reset_out; 5138 5139 return nbytes; 5140 5141 reset_out: 5142 /* Clean out command structure on command error out */ 5143 memset(&idiag, 0, sizeof(idiag)); 5144 return nbytes; 5145 5146 error_out: 5147 /* Clean out command structure on command error out */ 5148 memset(&idiag, 0, sizeof(idiag)); 5149 return -EINVAL; 5150 } 5151 5152 /** 5153 * lpfc_idiag_extacc_avail_get - get the available extents information 5154 * @phba: pointer to lpfc hba data structure. 5155 * @pbuffer: pointer to internal buffer. 5156 * @len: length into the internal buffer data has been copied. 5157 * 5158 * Description: 5159 * This routine is to get the available extent information. 5160 * 5161 * Returns: 5162 * overall lenth of the data read into the internal buffer. 5163 **/ 5164 static int 5165 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 5166 { 5167 uint16_t ext_cnt, ext_size; 5168 5169 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5170 "\nAvailable Extents Information:\n"); 5171 5172 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5173 "\tPort Available VPI extents: "); 5174 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 5175 &ext_cnt, &ext_size); 5176 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5177 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5178 5179 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5180 "\tPort Available VFI extents: "); 5181 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 5182 &ext_cnt, &ext_size); 5183 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5184 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5185 5186 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5187 "\tPort Available RPI extents: "); 5188 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 5189 &ext_cnt, &ext_size); 5190 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5191 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5192 5193 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5194 "\tPort Available XRI extents: "); 5195 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 5196 &ext_cnt, &ext_size); 5197 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5198 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5199 5200 return len; 5201 } 5202 5203 /** 5204 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 5205 * @phba: pointer to lpfc hba data structure. 5206 * @pbuffer: pointer to internal buffer. 5207 * @len: length into the internal buffer data has been copied. 5208 * 5209 * Description: 5210 * This routine is to get the allocated extent information. 5211 * 5212 * Returns: 5213 * overall lenth of the data read into the internal buffer. 5214 **/ 5215 static int 5216 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 5217 { 5218 uint16_t ext_cnt, ext_size; 5219 int rc; 5220 5221 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5222 "\nAllocated Extents Information:\n"); 5223 5224 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5225 "\tHost Allocated VPI extents: "); 5226 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 5227 &ext_cnt, &ext_size); 5228 if (!rc) 5229 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5230 "Port %d Extent %3d, Size %3d\n", 5231 phba->brd_no, ext_cnt, ext_size); 5232 else 5233 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5234 "N/A\n"); 5235 5236 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5237 "\tHost Allocated VFI extents: "); 5238 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 5239 &ext_cnt, &ext_size); 5240 if (!rc) 5241 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5242 "Port %d Extent %3d, Size %3d\n", 5243 phba->brd_no, ext_cnt, ext_size); 5244 else 5245 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5246 "N/A\n"); 5247 5248 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5249 "\tHost Allocated RPI extents: "); 5250 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 5251 &ext_cnt, &ext_size); 5252 if (!rc) 5253 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5254 "Port %d Extent %3d, Size %3d\n", 5255 phba->brd_no, ext_cnt, ext_size); 5256 else 5257 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5258 "N/A\n"); 5259 5260 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5261 "\tHost Allocated XRI extents: "); 5262 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 5263 &ext_cnt, &ext_size); 5264 if (!rc) 5265 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5266 "Port %d Extent %3d, Size %3d\n", 5267 phba->brd_no, ext_cnt, ext_size); 5268 else 5269 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5270 "N/A\n"); 5271 5272 return len; 5273 } 5274 5275 /** 5276 * lpfc_idiag_extacc_drivr_get - get driver extent information 5277 * @phba: pointer to lpfc hba data structure. 5278 * @pbuffer: pointer to internal buffer. 5279 * @len: length into the internal buffer data has been copied. 5280 * 5281 * Description: 5282 * This routine is to get the driver extent information. 5283 * 5284 * Returns: 5285 * overall lenth of the data read into the internal buffer. 5286 **/ 5287 static int 5288 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 5289 { 5290 struct lpfc_rsrc_blks *rsrc_blks; 5291 int index; 5292 5293 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5294 "\nDriver Extents Information:\n"); 5295 5296 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5297 "\tVPI extents:\n"); 5298 index = 0; 5299 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 5300 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5301 "\t\tBlock %3d: Start %4d, Count %4d\n", 5302 index, rsrc_blks->rsrc_start, 5303 rsrc_blks->rsrc_size); 5304 index++; 5305 } 5306 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5307 "\tVFI extents:\n"); 5308 index = 0; 5309 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 5310 list) { 5311 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5312 "\t\tBlock %3d: Start %4d, Count %4d\n", 5313 index, rsrc_blks->rsrc_start, 5314 rsrc_blks->rsrc_size); 5315 index++; 5316 } 5317 5318 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5319 "\tRPI extents:\n"); 5320 index = 0; 5321 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 5322 list) { 5323 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5324 "\t\tBlock %3d: Start %4d, Count %4d\n", 5325 index, rsrc_blks->rsrc_start, 5326 rsrc_blks->rsrc_size); 5327 index++; 5328 } 5329 5330 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5331 "\tXRI extents:\n"); 5332 index = 0; 5333 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 5334 list) { 5335 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5336 "\t\tBlock %3d: Start %4d, Count %4d\n", 5337 index, rsrc_blks->rsrc_start, 5338 rsrc_blks->rsrc_size); 5339 index++; 5340 } 5341 5342 return len; 5343 } 5344 5345 /** 5346 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 5347 * @file: The file pointer to read from. 5348 * @buf: The buffer to copy the user data from. 5349 * @nbytes: The number of bytes to get. 5350 * @ppos: The position in the file to start reading from. 5351 * 5352 * This routine get the debugfs idiag command struct from user space and then 5353 * perform the syntax check for extent information access commands and sets 5354 * up the necessary states in the idiag command struct accordingly. 5355 * 5356 * It returns the @nbytges passing in from debugfs user space when successful. 5357 * In case of error conditions, it returns proper error code back to the user 5358 * space. 5359 **/ 5360 static ssize_t 5361 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 5362 size_t nbytes, loff_t *ppos) 5363 { 5364 struct lpfc_debug *debug = file->private_data; 5365 uint32_t ext_map; 5366 int rc; 5367 5368 /* This is a user write operation */ 5369 debug->op = LPFC_IDIAG_OP_WR; 5370 5371 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5372 if (rc < 0) 5373 return rc; 5374 5375 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5376 5377 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5378 goto error_out; 5379 if (rc != LPFC_EXT_ACC_CMD_ARG) 5380 goto error_out; 5381 if (!(ext_map & LPFC_EXT_ACC_ALL)) 5382 goto error_out; 5383 5384 return nbytes; 5385 error_out: 5386 /* Clean out command structure on command error out */ 5387 memset(&idiag, 0, sizeof(idiag)); 5388 return -EINVAL; 5389 } 5390 5391 /** 5392 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 5393 * @file: The file pointer to read from. 5394 * @buf: The buffer to copy the data to. 5395 * @nbytes: The number of bytes to read. 5396 * @ppos: The position in the file to start reading from. 5397 * 5398 * Description: 5399 * This routine reads data from the proper extent information according to 5400 * the idiag command, and copies to user @buf. 5401 * 5402 * Returns: 5403 * This function returns the amount of data that was read (this could be less 5404 * than @nbytes if the end of the file was reached) or a negative error value. 5405 **/ 5406 static ssize_t 5407 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 5408 loff_t *ppos) 5409 { 5410 struct lpfc_debug *debug = file->private_data; 5411 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5412 char *pbuffer; 5413 uint32_t ext_map; 5414 int len = 0; 5415 5416 /* This is a user read operation */ 5417 debug->op = LPFC_IDIAG_OP_RD; 5418 5419 if (!debug->buffer) 5420 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 5421 if (!debug->buffer) 5422 return 0; 5423 pbuffer = debug->buffer; 5424 if (*ppos) 5425 return 0; 5426 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5427 return 0; 5428 5429 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5430 if (ext_map & LPFC_EXT_ACC_AVAIL) 5431 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 5432 if (ext_map & LPFC_EXT_ACC_ALLOC) 5433 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 5434 if (ext_map & LPFC_EXT_ACC_DRIVR) 5435 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 5436 5437 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5438 } 5439 5440 #undef lpfc_debugfs_op_disc_trc 5441 static const struct file_operations lpfc_debugfs_op_disc_trc = { 5442 .owner = THIS_MODULE, 5443 .open = lpfc_debugfs_disc_trc_open, 5444 .llseek = lpfc_debugfs_lseek, 5445 .read = lpfc_debugfs_read, 5446 .release = lpfc_debugfs_release, 5447 }; 5448 5449 #undef lpfc_debugfs_op_nodelist 5450 static const struct file_operations lpfc_debugfs_op_nodelist = { 5451 .owner = THIS_MODULE, 5452 .open = lpfc_debugfs_nodelist_open, 5453 .llseek = lpfc_debugfs_lseek, 5454 .read = lpfc_debugfs_read, 5455 .release = lpfc_debugfs_release, 5456 }; 5457 5458 #undef lpfc_debugfs_op_multixripools 5459 static const struct file_operations lpfc_debugfs_op_multixripools = { 5460 .owner = THIS_MODULE, 5461 .open = lpfc_debugfs_multixripools_open, 5462 .llseek = lpfc_debugfs_lseek, 5463 .read = lpfc_debugfs_read, 5464 .write = lpfc_debugfs_multixripools_write, 5465 .release = lpfc_debugfs_release, 5466 }; 5467 5468 #undef lpfc_debugfs_op_hbqinfo 5469 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 5470 .owner = THIS_MODULE, 5471 .open = lpfc_debugfs_hbqinfo_open, 5472 .llseek = lpfc_debugfs_lseek, 5473 .read = lpfc_debugfs_read, 5474 .release = lpfc_debugfs_release, 5475 }; 5476 5477 #ifdef LPFC_HDWQ_LOCK_STAT 5478 #undef lpfc_debugfs_op_lockstat 5479 static const struct file_operations lpfc_debugfs_op_lockstat = { 5480 .owner = THIS_MODULE, 5481 .open = lpfc_debugfs_lockstat_open, 5482 .llseek = lpfc_debugfs_lseek, 5483 .read = lpfc_debugfs_read, 5484 .write = lpfc_debugfs_lockstat_write, 5485 .release = lpfc_debugfs_release, 5486 }; 5487 #endif 5488 5489 #undef lpfc_debugfs_ras_log 5490 static const struct file_operations lpfc_debugfs_ras_log = { 5491 .owner = THIS_MODULE, 5492 .open = lpfc_debugfs_ras_log_open, 5493 .llseek = lpfc_debugfs_lseek, 5494 .read = lpfc_debugfs_read, 5495 .release = lpfc_debugfs_ras_log_release, 5496 }; 5497 5498 #undef lpfc_debugfs_op_dumpHBASlim 5499 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 5500 .owner = THIS_MODULE, 5501 .open = lpfc_debugfs_dumpHBASlim_open, 5502 .llseek = lpfc_debugfs_lseek, 5503 .read = lpfc_debugfs_read, 5504 .release = lpfc_debugfs_release, 5505 }; 5506 5507 #undef lpfc_debugfs_op_dumpHostSlim 5508 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 5509 .owner = THIS_MODULE, 5510 .open = lpfc_debugfs_dumpHostSlim_open, 5511 .llseek = lpfc_debugfs_lseek, 5512 .read = lpfc_debugfs_read, 5513 .release = lpfc_debugfs_release, 5514 }; 5515 5516 #undef lpfc_debugfs_op_nvmestat 5517 static const struct file_operations lpfc_debugfs_op_nvmestat = { 5518 .owner = THIS_MODULE, 5519 .open = lpfc_debugfs_nvmestat_open, 5520 .llseek = lpfc_debugfs_lseek, 5521 .read = lpfc_debugfs_read, 5522 .write = lpfc_debugfs_nvmestat_write, 5523 .release = lpfc_debugfs_release, 5524 }; 5525 5526 #undef lpfc_debugfs_op_scsistat 5527 static const struct file_operations lpfc_debugfs_op_scsistat = { 5528 .owner = THIS_MODULE, 5529 .open = lpfc_debugfs_scsistat_open, 5530 .llseek = lpfc_debugfs_lseek, 5531 .read = lpfc_debugfs_read, 5532 .write = lpfc_debugfs_scsistat_write, 5533 .release = lpfc_debugfs_release, 5534 }; 5535 5536 #undef lpfc_debugfs_op_ioktime 5537 static const struct file_operations lpfc_debugfs_op_ioktime = { 5538 .owner = THIS_MODULE, 5539 .open = lpfc_debugfs_ioktime_open, 5540 .llseek = lpfc_debugfs_lseek, 5541 .read = lpfc_debugfs_read, 5542 .write = lpfc_debugfs_ioktime_write, 5543 .release = lpfc_debugfs_release, 5544 }; 5545 5546 #undef lpfc_debugfs_op_nvmeio_trc 5547 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 5548 .owner = THIS_MODULE, 5549 .open = lpfc_debugfs_nvmeio_trc_open, 5550 .llseek = lpfc_debugfs_lseek, 5551 .read = lpfc_debugfs_read, 5552 .write = lpfc_debugfs_nvmeio_trc_write, 5553 .release = lpfc_debugfs_release, 5554 }; 5555 5556 #undef lpfc_debugfs_op_hdwqstat 5557 static const struct file_operations lpfc_debugfs_op_hdwqstat = { 5558 .owner = THIS_MODULE, 5559 .open = lpfc_debugfs_hdwqstat_open, 5560 .llseek = lpfc_debugfs_lseek, 5561 .read = lpfc_debugfs_read, 5562 .write = lpfc_debugfs_hdwqstat_write, 5563 .release = lpfc_debugfs_release, 5564 }; 5565 5566 #undef lpfc_debugfs_op_dif_err 5567 static const struct file_operations lpfc_debugfs_op_dif_err = { 5568 .owner = THIS_MODULE, 5569 .open = simple_open, 5570 .llseek = lpfc_debugfs_lseek, 5571 .read = lpfc_debugfs_dif_err_read, 5572 .write = lpfc_debugfs_dif_err_write, 5573 .release = lpfc_debugfs_dif_err_release, 5574 }; 5575 5576 #undef lpfc_debugfs_op_slow_ring_trc 5577 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 5578 .owner = THIS_MODULE, 5579 .open = lpfc_debugfs_slow_ring_trc_open, 5580 .llseek = lpfc_debugfs_lseek, 5581 .read = lpfc_debugfs_read, 5582 .release = lpfc_debugfs_release, 5583 }; 5584 5585 static struct dentry *lpfc_debugfs_root = NULL; 5586 static atomic_t lpfc_debugfs_hba_count; 5587 5588 /* 5589 * File operations for the iDiag debugfs 5590 */ 5591 #undef lpfc_idiag_op_pciCfg 5592 static const struct file_operations lpfc_idiag_op_pciCfg = { 5593 .owner = THIS_MODULE, 5594 .open = lpfc_idiag_open, 5595 .llseek = lpfc_debugfs_lseek, 5596 .read = lpfc_idiag_pcicfg_read, 5597 .write = lpfc_idiag_pcicfg_write, 5598 .release = lpfc_idiag_cmd_release, 5599 }; 5600 5601 #undef lpfc_idiag_op_barAcc 5602 static const struct file_operations lpfc_idiag_op_barAcc = { 5603 .owner = THIS_MODULE, 5604 .open = lpfc_idiag_open, 5605 .llseek = lpfc_debugfs_lseek, 5606 .read = lpfc_idiag_baracc_read, 5607 .write = lpfc_idiag_baracc_write, 5608 .release = lpfc_idiag_cmd_release, 5609 }; 5610 5611 #undef lpfc_idiag_op_queInfo 5612 static const struct file_operations lpfc_idiag_op_queInfo = { 5613 .owner = THIS_MODULE, 5614 .open = lpfc_idiag_open, 5615 .read = lpfc_idiag_queinfo_read, 5616 .release = lpfc_idiag_release, 5617 }; 5618 5619 #undef lpfc_idiag_op_queAcc 5620 static const struct file_operations lpfc_idiag_op_queAcc = { 5621 .owner = THIS_MODULE, 5622 .open = lpfc_idiag_open, 5623 .llseek = lpfc_debugfs_lseek, 5624 .read = lpfc_idiag_queacc_read, 5625 .write = lpfc_idiag_queacc_write, 5626 .release = lpfc_idiag_cmd_release, 5627 }; 5628 5629 #undef lpfc_idiag_op_drbAcc 5630 static const struct file_operations lpfc_idiag_op_drbAcc = { 5631 .owner = THIS_MODULE, 5632 .open = lpfc_idiag_open, 5633 .llseek = lpfc_debugfs_lseek, 5634 .read = lpfc_idiag_drbacc_read, 5635 .write = lpfc_idiag_drbacc_write, 5636 .release = lpfc_idiag_cmd_release, 5637 }; 5638 5639 #undef lpfc_idiag_op_ctlAcc 5640 static const struct file_operations lpfc_idiag_op_ctlAcc = { 5641 .owner = THIS_MODULE, 5642 .open = lpfc_idiag_open, 5643 .llseek = lpfc_debugfs_lseek, 5644 .read = lpfc_idiag_ctlacc_read, 5645 .write = lpfc_idiag_ctlacc_write, 5646 .release = lpfc_idiag_cmd_release, 5647 }; 5648 5649 #undef lpfc_idiag_op_mbxAcc 5650 static const struct file_operations lpfc_idiag_op_mbxAcc = { 5651 .owner = THIS_MODULE, 5652 .open = lpfc_idiag_open, 5653 .llseek = lpfc_debugfs_lseek, 5654 .read = lpfc_idiag_mbxacc_read, 5655 .write = lpfc_idiag_mbxacc_write, 5656 .release = lpfc_idiag_cmd_release, 5657 }; 5658 5659 #undef lpfc_idiag_op_extAcc 5660 static const struct file_operations lpfc_idiag_op_extAcc = { 5661 .owner = THIS_MODULE, 5662 .open = lpfc_idiag_open, 5663 .llseek = lpfc_debugfs_lseek, 5664 .read = lpfc_idiag_extacc_read, 5665 .write = lpfc_idiag_extacc_write, 5666 .release = lpfc_idiag_cmd_release, 5667 }; 5668 #endif 5669 5670 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 5671 * @phba: Pointer to HBA context object. 5672 * @dmabuf: Pointer to a DMA buffer descriptor. 5673 * 5674 * Description: 5675 * This routine dump a bsg pass-through non-embedded mailbox command with 5676 * external buffer. 5677 **/ 5678 void 5679 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 5680 enum mbox_type mbox_tp, enum dma_type dma_tp, 5681 enum sta_type sta_tp, 5682 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 5683 { 5684 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5685 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 5686 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5687 int len = 0; 5688 uint32_t do_dump = 0; 5689 uint32_t *pword; 5690 uint32_t i; 5691 5692 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 5693 return; 5694 5695 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5696 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5697 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5698 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5699 5700 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 5701 (*mbx_dump_cnt == 0) || 5702 (*mbx_word_cnt == 0)) 5703 return; 5704 5705 if (*mbx_mbox_cmd != 0x9B) 5706 return; 5707 5708 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 5709 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 5710 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 5711 pr_err("\nRead mbox command (x%x), " 5712 "nemb:0x%x, extbuf_cnt:%d:\n", 5713 sta_tp, nemb_tp, ext_buf); 5714 } 5715 } 5716 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5717 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5718 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5719 pr_err("\nRead mbox buffer (x%x), " 5720 "nemb:0x%x, extbuf_seq:%d:\n", 5721 sta_tp, nemb_tp, ext_buf); 5722 } 5723 } 5724 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5725 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5726 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5727 pr_err("\nWrite mbox command (x%x), " 5728 "nemb:0x%x, extbuf_cnt:%d:\n", 5729 sta_tp, nemb_tp, ext_buf); 5730 } 5731 } 5732 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5733 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5734 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5735 pr_err("\nWrite mbox buffer (x%x), " 5736 "nemb:0x%x, extbuf_seq:%d:\n", 5737 sta_tp, nemb_tp, ext_buf); 5738 } 5739 } 5740 5741 /* dump buffer content */ 5742 if (do_dump) { 5743 pword = (uint32_t *)dmabuf->virt; 5744 for (i = 0; i < *mbx_word_cnt; i++) { 5745 if (!(i % 8)) { 5746 if (i != 0) 5747 pr_err("%s\n", line_buf); 5748 len = 0; 5749 len += scnprintf(line_buf+len, 5750 LPFC_MBX_ACC_LBUF_SZ-len, 5751 "%03d: ", i); 5752 } 5753 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5754 "%08x ", (uint32_t)*pword); 5755 pword++; 5756 } 5757 if ((i - 1) % 8) 5758 pr_err("%s\n", line_buf); 5759 (*mbx_dump_cnt)--; 5760 } 5761 5762 /* Clean out command structure on reaching dump count */ 5763 if (*mbx_dump_cnt == 0) 5764 memset(&idiag, 0, sizeof(idiag)); 5765 return; 5766 #endif 5767 } 5768 5769 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5770 * @phba: Pointer to HBA context object. 5771 * @dmabuf: Pointer to a DMA buffer descriptor. 5772 * 5773 * Description: 5774 * This routine dump a pass-through non-embedded mailbox command from issue 5775 * mailbox command. 5776 **/ 5777 void 5778 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5779 { 5780 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5781 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5782 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5783 int len = 0; 5784 uint32_t *pword; 5785 uint8_t *pbyte; 5786 uint32_t i, j; 5787 5788 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5789 return; 5790 5791 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5792 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5793 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5794 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5795 5796 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5797 (*mbx_dump_cnt == 0) || 5798 (*mbx_word_cnt == 0)) 5799 return; 5800 5801 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5802 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5803 return; 5804 5805 /* dump buffer content */ 5806 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 5807 pr_err("Mailbox command:0x%x dump by word:\n", 5808 pmbox->mbxCommand); 5809 pword = (uint32_t *)pmbox; 5810 for (i = 0; i < *mbx_word_cnt; i++) { 5811 if (!(i % 8)) { 5812 if (i != 0) 5813 pr_err("%s\n", line_buf); 5814 len = 0; 5815 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5816 len += scnprintf(line_buf+len, 5817 LPFC_MBX_ACC_LBUF_SZ-len, 5818 "%03d: ", i); 5819 } 5820 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5821 "%08x ", 5822 ((uint32_t)*pword) & 0xffffffff); 5823 pword++; 5824 } 5825 if ((i - 1) % 8) 5826 pr_err("%s\n", line_buf); 5827 pr_err("\n"); 5828 } 5829 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 5830 pr_err("Mailbox command:0x%x dump by byte:\n", 5831 pmbox->mbxCommand); 5832 pbyte = (uint8_t *)pmbox; 5833 for (i = 0; i < *mbx_word_cnt; i++) { 5834 if (!(i % 8)) { 5835 if (i != 0) 5836 pr_err("%s\n", line_buf); 5837 len = 0; 5838 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5839 len += scnprintf(line_buf+len, 5840 LPFC_MBX_ACC_LBUF_SZ-len, 5841 "%03d: ", i); 5842 } 5843 for (j = 0; j < 4; j++) { 5844 len += scnprintf(line_buf+len, 5845 LPFC_MBX_ACC_LBUF_SZ-len, 5846 "%02x", 5847 ((uint8_t)*pbyte) & 0xff); 5848 pbyte++; 5849 } 5850 len += scnprintf(line_buf+len, 5851 LPFC_MBX_ACC_LBUF_SZ-len, " "); 5852 } 5853 if ((i - 1) % 8) 5854 pr_err("%s\n", line_buf); 5855 pr_err("\n"); 5856 } 5857 (*mbx_dump_cnt)--; 5858 5859 /* Clean out command structure on reaching dump count */ 5860 if (*mbx_dump_cnt == 0) 5861 memset(&idiag, 0, sizeof(idiag)); 5862 return; 5863 #endif 5864 } 5865 5866 /** 5867 * lpfc_debugfs_initialize - Initialize debugfs for a vport 5868 * @vport: The vport pointer to initialize. 5869 * 5870 * Description: 5871 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 5872 * If not already created, this routine will create the lpfc directory, and 5873 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 5874 * also create each file used to access lpfc specific debugfs information. 5875 **/ 5876 inline void 5877 lpfc_debugfs_initialize(struct lpfc_vport *vport) 5878 { 5879 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5880 struct lpfc_hba *phba = vport->phba; 5881 char name[64]; 5882 uint32_t num, i; 5883 bool pport_setup = false; 5884 5885 if (!lpfc_debugfs_enable) 5886 return; 5887 5888 /* Setup lpfc root directory */ 5889 if (!lpfc_debugfs_root) { 5890 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 5891 atomic_set(&lpfc_debugfs_hba_count, 0); 5892 } 5893 if (!lpfc_debugfs_start_time) 5894 lpfc_debugfs_start_time = jiffies; 5895 5896 /* Setup funcX directory for specific HBA PCI function */ 5897 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 5898 if (!phba->hba_debugfs_root) { 5899 pport_setup = true; 5900 phba->hba_debugfs_root = 5901 debugfs_create_dir(name, lpfc_debugfs_root); 5902 atomic_inc(&lpfc_debugfs_hba_count); 5903 atomic_set(&phba->debugfs_vport_count, 0); 5904 5905 /* Multi-XRI pools */ 5906 snprintf(name, sizeof(name), "multixripools"); 5907 phba->debug_multixri_pools = 5908 debugfs_create_file(name, S_IFREG | 0644, 5909 phba->hba_debugfs_root, 5910 phba, 5911 &lpfc_debugfs_op_multixripools); 5912 if (!phba->debug_multixri_pools) { 5913 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5914 "0527 Cannot create debugfs multixripools\n"); 5915 goto debug_failed; 5916 } 5917 5918 /* RAS log */ 5919 snprintf(name, sizeof(name), "ras_log"); 5920 phba->debug_ras_log = 5921 debugfs_create_file(name, 0644, 5922 phba->hba_debugfs_root, 5923 phba, &lpfc_debugfs_ras_log); 5924 if (!phba->debug_ras_log) { 5925 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5926 "6148 Cannot create debugfs" 5927 " ras_log\n"); 5928 goto debug_failed; 5929 } 5930 5931 /* Setup hbqinfo */ 5932 snprintf(name, sizeof(name), "hbqinfo"); 5933 phba->debug_hbqinfo = 5934 debugfs_create_file(name, S_IFREG | 0644, 5935 phba->hba_debugfs_root, 5936 phba, &lpfc_debugfs_op_hbqinfo); 5937 5938 #ifdef LPFC_HDWQ_LOCK_STAT 5939 /* Setup lockstat */ 5940 snprintf(name, sizeof(name), "lockstat"); 5941 phba->debug_lockstat = 5942 debugfs_create_file(name, S_IFREG | 0644, 5943 phba->hba_debugfs_root, 5944 phba, &lpfc_debugfs_op_lockstat); 5945 if (!phba->debug_lockstat) { 5946 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5947 "4610 Cant create debugfs lockstat\n"); 5948 goto debug_failed; 5949 } 5950 #endif 5951 5952 /* Setup dumpHBASlim */ 5953 if (phba->sli_rev < LPFC_SLI_REV4) { 5954 snprintf(name, sizeof(name), "dumpHBASlim"); 5955 phba->debug_dumpHBASlim = 5956 debugfs_create_file(name, 5957 S_IFREG|S_IRUGO|S_IWUSR, 5958 phba->hba_debugfs_root, 5959 phba, &lpfc_debugfs_op_dumpHBASlim); 5960 } else 5961 phba->debug_dumpHBASlim = NULL; 5962 5963 /* Setup dumpHostSlim */ 5964 if (phba->sli_rev < LPFC_SLI_REV4) { 5965 snprintf(name, sizeof(name), "dumpHostSlim"); 5966 phba->debug_dumpHostSlim = 5967 debugfs_create_file(name, 5968 S_IFREG|S_IRUGO|S_IWUSR, 5969 phba->hba_debugfs_root, 5970 phba, &lpfc_debugfs_op_dumpHostSlim); 5971 } else 5972 phba->debug_dumpHostSlim = NULL; 5973 5974 /* Setup DIF Error Injections */ 5975 snprintf(name, sizeof(name), "InjErrLBA"); 5976 phba->debug_InjErrLBA = 5977 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5978 phba->hba_debugfs_root, 5979 phba, &lpfc_debugfs_op_dif_err); 5980 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 5981 5982 snprintf(name, sizeof(name), "InjErrNPortID"); 5983 phba->debug_InjErrNPortID = 5984 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5985 phba->hba_debugfs_root, 5986 phba, &lpfc_debugfs_op_dif_err); 5987 5988 snprintf(name, sizeof(name), "InjErrWWPN"); 5989 phba->debug_InjErrWWPN = 5990 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5991 phba->hba_debugfs_root, 5992 phba, &lpfc_debugfs_op_dif_err); 5993 5994 snprintf(name, sizeof(name), "writeGuardInjErr"); 5995 phba->debug_writeGuard = 5996 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5997 phba->hba_debugfs_root, 5998 phba, &lpfc_debugfs_op_dif_err); 5999 6000 snprintf(name, sizeof(name), "writeAppInjErr"); 6001 phba->debug_writeApp = 6002 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6003 phba->hba_debugfs_root, 6004 phba, &lpfc_debugfs_op_dif_err); 6005 6006 snprintf(name, sizeof(name), "writeRefInjErr"); 6007 phba->debug_writeRef = 6008 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6009 phba->hba_debugfs_root, 6010 phba, &lpfc_debugfs_op_dif_err); 6011 6012 snprintf(name, sizeof(name), "readGuardInjErr"); 6013 phba->debug_readGuard = 6014 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6015 phba->hba_debugfs_root, 6016 phba, &lpfc_debugfs_op_dif_err); 6017 6018 snprintf(name, sizeof(name), "readAppInjErr"); 6019 phba->debug_readApp = 6020 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6021 phba->hba_debugfs_root, 6022 phba, &lpfc_debugfs_op_dif_err); 6023 6024 snprintf(name, sizeof(name), "readRefInjErr"); 6025 phba->debug_readRef = 6026 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6027 phba->hba_debugfs_root, 6028 phba, &lpfc_debugfs_op_dif_err); 6029 6030 /* Setup slow ring trace */ 6031 if (lpfc_debugfs_max_slow_ring_trc) { 6032 num = lpfc_debugfs_max_slow_ring_trc - 1; 6033 if (num & lpfc_debugfs_max_slow_ring_trc) { 6034 /* Change to be a power of 2 */ 6035 num = lpfc_debugfs_max_slow_ring_trc; 6036 i = 0; 6037 while (num > 1) { 6038 num = num >> 1; 6039 i++; 6040 } 6041 lpfc_debugfs_max_slow_ring_trc = (1 << i); 6042 pr_err("lpfc_debugfs_max_disc_trc changed to " 6043 "%d\n", lpfc_debugfs_max_disc_trc); 6044 } 6045 } 6046 6047 snprintf(name, sizeof(name), "slow_ring_trace"); 6048 phba->debug_slow_ring_trc = 6049 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6050 phba->hba_debugfs_root, 6051 phba, &lpfc_debugfs_op_slow_ring_trc); 6052 if (!phba->slow_ring_trc) { 6053 phba->slow_ring_trc = kmalloc( 6054 (sizeof(struct lpfc_debugfs_trc) * 6055 lpfc_debugfs_max_slow_ring_trc), 6056 GFP_KERNEL); 6057 if (!phba->slow_ring_trc) { 6058 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6059 "0416 Cannot create debugfs " 6060 "slow_ring buffer\n"); 6061 goto debug_failed; 6062 } 6063 atomic_set(&phba->slow_ring_trc_cnt, 0); 6064 memset(phba->slow_ring_trc, 0, 6065 (sizeof(struct lpfc_debugfs_trc) * 6066 lpfc_debugfs_max_slow_ring_trc)); 6067 } 6068 6069 snprintf(name, sizeof(name), "nvmeio_trc"); 6070 phba->debug_nvmeio_trc = 6071 debugfs_create_file(name, 0644, 6072 phba->hba_debugfs_root, 6073 phba, &lpfc_debugfs_op_nvmeio_trc); 6074 6075 atomic_set(&phba->nvmeio_trc_cnt, 0); 6076 if (lpfc_debugfs_max_nvmeio_trc) { 6077 num = lpfc_debugfs_max_nvmeio_trc - 1; 6078 if (num & lpfc_debugfs_max_disc_trc) { 6079 /* Change to be a power of 2 */ 6080 num = lpfc_debugfs_max_nvmeio_trc; 6081 i = 0; 6082 while (num > 1) { 6083 num = num >> 1; 6084 i++; 6085 } 6086 lpfc_debugfs_max_nvmeio_trc = (1 << i); 6087 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6088 "0575 lpfc_debugfs_max_nvmeio_trc " 6089 "changed to %d\n", 6090 lpfc_debugfs_max_nvmeio_trc); 6091 } 6092 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 6093 6094 /* Allocate trace buffer and initialize */ 6095 phba->nvmeio_trc = kzalloc( 6096 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 6097 phba->nvmeio_trc_size), GFP_KERNEL); 6098 6099 if (!phba->nvmeio_trc) { 6100 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6101 "0576 Cannot create debugfs " 6102 "nvmeio_trc buffer\n"); 6103 goto nvmeio_off; 6104 } 6105 phba->nvmeio_trc_on = 1; 6106 phba->nvmeio_trc_output_idx = 0; 6107 phba->nvmeio_trc = NULL; 6108 } else { 6109 nvmeio_off: 6110 phba->nvmeio_trc_size = 0; 6111 phba->nvmeio_trc_on = 0; 6112 phba->nvmeio_trc_output_idx = 0; 6113 phba->nvmeio_trc = NULL; 6114 } 6115 } 6116 6117 snprintf(name, sizeof(name), "vport%d", vport->vpi); 6118 if (!vport->vport_debugfs_root) { 6119 vport->vport_debugfs_root = 6120 debugfs_create_dir(name, phba->hba_debugfs_root); 6121 atomic_inc(&phba->debugfs_vport_count); 6122 } 6123 6124 if (lpfc_debugfs_max_disc_trc) { 6125 num = lpfc_debugfs_max_disc_trc - 1; 6126 if (num & lpfc_debugfs_max_disc_trc) { 6127 /* Change to be a power of 2 */ 6128 num = lpfc_debugfs_max_disc_trc; 6129 i = 0; 6130 while (num > 1) { 6131 num = num >> 1; 6132 i++; 6133 } 6134 lpfc_debugfs_max_disc_trc = (1 << i); 6135 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n", 6136 lpfc_debugfs_max_disc_trc); 6137 } 6138 } 6139 6140 vport->disc_trc = kzalloc( 6141 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 6142 GFP_KERNEL); 6143 6144 if (!vport->disc_trc) { 6145 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6146 "0418 Cannot create debugfs disc trace " 6147 "buffer\n"); 6148 goto debug_failed; 6149 } 6150 atomic_set(&vport->disc_trc_cnt, 0); 6151 6152 snprintf(name, sizeof(name), "discovery_trace"); 6153 vport->debug_disc_trc = 6154 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6155 vport->vport_debugfs_root, 6156 vport, &lpfc_debugfs_op_disc_trc); 6157 snprintf(name, sizeof(name), "nodelist"); 6158 vport->debug_nodelist = 6159 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6160 vport->vport_debugfs_root, 6161 vport, &lpfc_debugfs_op_nodelist); 6162 6163 snprintf(name, sizeof(name), "nvmestat"); 6164 vport->debug_nvmestat = 6165 debugfs_create_file(name, 0644, 6166 vport->vport_debugfs_root, 6167 vport, &lpfc_debugfs_op_nvmestat); 6168 6169 snprintf(name, sizeof(name), "scsistat"); 6170 vport->debug_scsistat = 6171 debugfs_create_file(name, 0644, 6172 vport->vport_debugfs_root, 6173 vport, &lpfc_debugfs_op_scsistat); 6174 if (!vport->debug_scsistat) { 6175 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6176 "4611 Cannot create debugfs scsistat\n"); 6177 goto debug_failed; 6178 } 6179 6180 snprintf(name, sizeof(name), "ioktime"); 6181 vport->debug_ioktime = 6182 debugfs_create_file(name, 0644, 6183 vport->vport_debugfs_root, 6184 vport, &lpfc_debugfs_op_ioktime); 6185 if (!vport->debug_ioktime) { 6186 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6187 "0815 Cannot create debugfs ioktime\n"); 6188 goto debug_failed; 6189 } 6190 6191 snprintf(name, sizeof(name), "hdwqstat"); 6192 vport->debug_hdwqstat = 6193 debugfs_create_file(name, 0644, 6194 vport->vport_debugfs_root, 6195 vport, &lpfc_debugfs_op_hdwqstat); 6196 6197 /* 6198 * The following section is for additional directories/files for the 6199 * physical port. 6200 */ 6201 6202 if (!pport_setup) 6203 goto debug_failed; 6204 6205 /* 6206 * iDiag debugfs root entry points for SLI4 device only 6207 */ 6208 if (phba->sli_rev < LPFC_SLI_REV4) 6209 goto debug_failed; 6210 6211 snprintf(name, sizeof(name), "iDiag"); 6212 if (!phba->idiag_root) { 6213 phba->idiag_root = 6214 debugfs_create_dir(name, phba->hba_debugfs_root); 6215 /* Initialize iDiag data structure */ 6216 memset(&idiag, 0, sizeof(idiag)); 6217 } 6218 6219 /* iDiag read PCI config space */ 6220 snprintf(name, sizeof(name), "pciCfg"); 6221 if (!phba->idiag_pci_cfg) { 6222 phba->idiag_pci_cfg = 6223 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6224 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 6225 idiag.offset.last_rd = 0; 6226 } 6227 6228 /* iDiag PCI BAR access */ 6229 snprintf(name, sizeof(name), "barAcc"); 6230 if (!phba->idiag_bar_acc) { 6231 phba->idiag_bar_acc = 6232 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6233 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 6234 idiag.offset.last_rd = 0; 6235 } 6236 6237 /* iDiag get PCI function queue information */ 6238 snprintf(name, sizeof(name), "queInfo"); 6239 if (!phba->idiag_que_info) { 6240 phba->idiag_que_info = 6241 debugfs_create_file(name, S_IFREG|S_IRUGO, 6242 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 6243 } 6244 6245 /* iDiag access PCI function queue */ 6246 snprintf(name, sizeof(name), "queAcc"); 6247 if (!phba->idiag_que_acc) { 6248 phba->idiag_que_acc = 6249 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6250 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 6251 } 6252 6253 /* iDiag access PCI function doorbell registers */ 6254 snprintf(name, sizeof(name), "drbAcc"); 6255 if (!phba->idiag_drb_acc) { 6256 phba->idiag_drb_acc = 6257 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6258 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 6259 } 6260 6261 /* iDiag access PCI function control registers */ 6262 snprintf(name, sizeof(name), "ctlAcc"); 6263 if (!phba->idiag_ctl_acc) { 6264 phba->idiag_ctl_acc = 6265 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6266 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 6267 } 6268 6269 /* iDiag access mbox commands */ 6270 snprintf(name, sizeof(name), "mbxAcc"); 6271 if (!phba->idiag_mbx_acc) { 6272 phba->idiag_mbx_acc = 6273 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6274 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 6275 } 6276 6277 /* iDiag extents access commands */ 6278 if (phba->sli4_hba.extents_in_use) { 6279 snprintf(name, sizeof(name), "extAcc"); 6280 if (!phba->idiag_ext_acc) { 6281 phba->idiag_ext_acc = 6282 debugfs_create_file(name, 6283 S_IFREG|S_IRUGO|S_IWUSR, 6284 phba->idiag_root, phba, 6285 &lpfc_idiag_op_extAcc); 6286 } 6287 } 6288 6289 debug_failed: 6290 return; 6291 #endif 6292 } 6293 6294 /** 6295 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 6296 * @vport: The vport pointer to remove from debugfs. 6297 * 6298 * Description: 6299 * When Debugfs is configured this routine removes debugfs file system elements 6300 * that are specific to this vport. It also checks to see if there are any 6301 * users left for the debugfs directories associated with the HBA and driver. If 6302 * this is the last user of the HBA directory or driver directory then it will 6303 * remove those from the debugfs infrastructure as well. 6304 **/ 6305 inline void 6306 lpfc_debugfs_terminate(struct lpfc_vport *vport) 6307 { 6308 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6309 struct lpfc_hba *phba = vport->phba; 6310 6311 kfree(vport->disc_trc); 6312 vport->disc_trc = NULL; 6313 6314 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 6315 vport->debug_disc_trc = NULL; 6316 6317 debugfs_remove(vport->debug_nodelist); /* nodelist */ 6318 vport->debug_nodelist = NULL; 6319 6320 debugfs_remove(vport->debug_nvmestat); /* nvmestat */ 6321 vport->debug_nvmestat = NULL; 6322 6323 debugfs_remove(vport->debug_scsistat); /* scsistat */ 6324 vport->debug_scsistat = NULL; 6325 6326 debugfs_remove(vport->debug_ioktime); /* ioktime */ 6327 vport->debug_ioktime = NULL; 6328 6329 debugfs_remove(vport->debug_hdwqstat); /* hdwqstat */ 6330 vport->debug_hdwqstat = NULL; 6331 6332 if (vport->vport_debugfs_root) { 6333 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 6334 vport->vport_debugfs_root = NULL; 6335 atomic_dec(&phba->debugfs_vport_count); 6336 } 6337 6338 if (atomic_read(&phba->debugfs_vport_count) == 0) { 6339 6340 debugfs_remove(phba->debug_multixri_pools); /* multixripools*/ 6341 phba->debug_multixri_pools = NULL; 6342 6343 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 6344 phba->debug_hbqinfo = NULL; 6345 6346 debugfs_remove(phba->debug_ras_log); 6347 phba->debug_ras_log = NULL; 6348 6349 #ifdef LPFC_HDWQ_LOCK_STAT 6350 debugfs_remove(phba->debug_lockstat); /* lockstat */ 6351 phba->debug_lockstat = NULL; 6352 #endif 6353 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 6354 phba->debug_dumpHBASlim = NULL; 6355 6356 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 6357 phba->debug_dumpHostSlim = NULL; 6358 6359 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 6360 phba->debug_InjErrLBA = NULL; 6361 6362 debugfs_remove(phba->debug_InjErrNPortID); 6363 phba->debug_InjErrNPortID = NULL; 6364 6365 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 6366 phba->debug_InjErrWWPN = NULL; 6367 6368 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 6369 phba->debug_writeGuard = NULL; 6370 6371 debugfs_remove(phba->debug_writeApp); /* writeApp */ 6372 phba->debug_writeApp = NULL; 6373 6374 debugfs_remove(phba->debug_writeRef); /* writeRef */ 6375 phba->debug_writeRef = NULL; 6376 6377 debugfs_remove(phba->debug_readGuard); /* readGuard */ 6378 phba->debug_readGuard = NULL; 6379 6380 debugfs_remove(phba->debug_readApp); /* readApp */ 6381 phba->debug_readApp = NULL; 6382 6383 debugfs_remove(phba->debug_readRef); /* readRef */ 6384 phba->debug_readRef = NULL; 6385 6386 kfree(phba->slow_ring_trc); 6387 phba->slow_ring_trc = NULL; 6388 6389 /* slow_ring_trace */ 6390 debugfs_remove(phba->debug_slow_ring_trc); 6391 phba->debug_slow_ring_trc = NULL; 6392 6393 debugfs_remove(phba->debug_nvmeio_trc); 6394 phba->debug_nvmeio_trc = NULL; 6395 6396 kfree(phba->nvmeio_trc); 6397 phba->nvmeio_trc = NULL; 6398 6399 /* 6400 * iDiag release 6401 */ 6402 if (phba->sli_rev == LPFC_SLI_REV4) { 6403 /* iDiag extAcc */ 6404 debugfs_remove(phba->idiag_ext_acc); 6405 phba->idiag_ext_acc = NULL; 6406 6407 /* iDiag mbxAcc */ 6408 debugfs_remove(phba->idiag_mbx_acc); 6409 phba->idiag_mbx_acc = NULL; 6410 6411 /* iDiag ctlAcc */ 6412 debugfs_remove(phba->idiag_ctl_acc); 6413 phba->idiag_ctl_acc = NULL; 6414 6415 /* iDiag drbAcc */ 6416 debugfs_remove(phba->idiag_drb_acc); 6417 phba->idiag_drb_acc = NULL; 6418 6419 /* iDiag queAcc */ 6420 debugfs_remove(phba->idiag_que_acc); 6421 phba->idiag_que_acc = NULL; 6422 6423 /* iDiag queInfo */ 6424 debugfs_remove(phba->idiag_que_info); 6425 phba->idiag_que_info = NULL; 6426 6427 /* iDiag barAcc */ 6428 debugfs_remove(phba->idiag_bar_acc); 6429 phba->idiag_bar_acc = NULL; 6430 6431 /* iDiag pciCfg */ 6432 debugfs_remove(phba->idiag_pci_cfg); 6433 phba->idiag_pci_cfg = NULL; 6434 6435 /* Finally remove the iDiag debugfs root */ 6436 debugfs_remove(phba->idiag_root); 6437 phba->idiag_root = NULL; 6438 } 6439 6440 if (phba->hba_debugfs_root) { 6441 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 6442 phba->hba_debugfs_root = NULL; 6443 atomic_dec(&lpfc_debugfs_hba_count); 6444 } 6445 6446 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 6447 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 6448 lpfc_debugfs_root = NULL; 6449 } 6450 } 6451 #endif 6452 return; 6453 } 6454 6455 /* 6456 * Driver debug utility routines outside of debugfs. The debug utility 6457 * routines implemented here is intended to be used in the instrumented 6458 * debug driver for debugging host or port issues. 6459 */ 6460 6461 /** 6462 * lpfc_debug_dump_all_queues - dump all the queues with a hba 6463 * @phba: Pointer to HBA context object. 6464 * 6465 * This function dumps entries of all the queues asociated with the @phba. 6466 **/ 6467 void 6468 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 6469 { 6470 int idx; 6471 6472 /* 6473 * Dump Work Queues (WQs) 6474 */ 6475 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 6476 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 6477 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 6478 6479 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6480 lpfc_debug_dump_wq(phba, DUMP_IO, idx); 6481 6482 lpfc_debug_dump_hdr_rq(phba); 6483 lpfc_debug_dump_dat_rq(phba); 6484 /* 6485 * Dump Complete Queues (CQs) 6486 */ 6487 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 6488 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 6489 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 6490 6491 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6492 lpfc_debug_dump_cq(phba, DUMP_IO, idx); 6493 6494 /* 6495 * Dump Event Queues (EQs) 6496 */ 6497 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6498 lpfc_debug_dump_hba_eq(phba, idx); 6499 } 6500