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_hdwq_stat *c_stat; 1700 int i, j, len; 1701 uint32_t tot_xmt; 1702 uint32_t tot_rcv; 1703 uint32_t tot_cmpl; 1704 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 1705 1706 scnprintf(tmp, sizeof(tmp), "HDWQ Stats:\n\n"); 1707 if (strlcat(buf, tmp, size) >= size) 1708 goto buffer_done; 1709 1710 scnprintf(tmp, sizeof(tmp), "(NVME Accounting: %s) ", 1711 (phba->hdwqstat_on & 1712 (LPFC_CHECK_NVME_IO | LPFC_CHECK_NVMET_IO) ? 1713 "Enabled" : "Disabled")); 1714 if (strlcat(buf, tmp, size) >= size) 1715 goto buffer_done; 1716 1717 scnprintf(tmp, sizeof(tmp), "(SCSI Accounting: %s) ", 1718 (phba->hdwqstat_on & LPFC_CHECK_SCSI_IO ? 1719 "Enabled" : "Disabled")); 1720 if (strlcat(buf, tmp, size) >= size) 1721 goto buffer_done; 1722 1723 scnprintf(tmp, sizeof(tmp), "\n\n"); 1724 if (strlcat(buf, tmp, size) >= size) 1725 goto buffer_done; 1726 1727 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1728 tot_rcv = 0; 1729 tot_xmt = 0; 1730 tot_cmpl = 0; 1731 1732 for_each_present_cpu(j) { 1733 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, j); 1734 1735 /* Only display for this HDWQ */ 1736 if (i != c_stat->hdwq_no) 1737 continue; 1738 1739 /* Only display non-zero counters */ 1740 if (!c_stat->xmt_io && !c_stat->cmpl_io && 1741 !c_stat->rcv_io) 1742 continue; 1743 1744 if (!tot_xmt && !tot_cmpl && !tot_rcv) { 1745 /* Print HDWQ string only the first time */ 1746 scnprintf(tmp, sizeof(tmp), "[HDWQ %d]:\t", i); 1747 if (strlcat(buf, tmp, size) >= size) 1748 goto buffer_done; 1749 } 1750 1751 tot_xmt += c_stat->xmt_io; 1752 tot_cmpl += c_stat->cmpl_io; 1753 if (phba->nvmet_support) 1754 tot_rcv += c_stat->rcv_io; 1755 1756 scnprintf(tmp, sizeof(tmp), "| [CPU %d]: ", j); 1757 if (strlcat(buf, tmp, size) >= size) 1758 goto buffer_done; 1759 1760 if (phba->nvmet_support) { 1761 scnprintf(tmp, sizeof(tmp), 1762 "XMT 0x%x CMPL 0x%x RCV 0x%x |", 1763 c_stat->xmt_io, c_stat->cmpl_io, 1764 c_stat->rcv_io); 1765 if (strlcat(buf, tmp, size) >= size) 1766 goto buffer_done; 1767 } else { 1768 scnprintf(tmp, sizeof(tmp), 1769 "XMT 0x%x CMPL 0x%x |", 1770 c_stat->xmt_io, c_stat->cmpl_io); 1771 if (strlcat(buf, tmp, size) >= size) 1772 goto buffer_done; 1773 } 1774 } 1775 1776 /* Check if nothing to display */ 1777 if (!tot_xmt && !tot_cmpl && !tot_rcv) 1778 continue; 1779 1780 scnprintf(tmp, sizeof(tmp), "\t->\t[HDWQ Total: "); 1781 if (strlcat(buf, tmp, size) >= size) 1782 goto buffer_done; 1783 1784 if (phba->nvmet_support) { 1785 scnprintf(tmp, sizeof(tmp), 1786 "XMT 0x%x CMPL 0x%x RCV 0x%x]\n\n", 1787 tot_xmt, tot_cmpl, tot_rcv); 1788 if (strlcat(buf, tmp, size) >= size) 1789 goto buffer_done; 1790 } else { 1791 scnprintf(tmp, sizeof(tmp), 1792 "XMT 0x%x CMPL 0x%x]\n\n", 1793 tot_xmt, tot_cmpl); 1794 if (strlcat(buf, tmp, size) >= size) 1795 goto buffer_done; 1796 } 1797 } 1798 1799 buffer_done: 1800 len = strnlen(buf, size); 1801 return len; 1802 } 1803 1804 #endif 1805 1806 /** 1807 * lpfc_debugfs_disc_trc - Store discovery trace log 1808 * @vport: The vport to associate this trace string with for retrieval. 1809 * @mask: Log entry classification. 1810 * @fmt: Format string to be displayed when dumping the log. 1811 * @data1: 1st data parameter to be applied to @fmt. 1812 * @data2: 2nd data parameter to be applied to @fmt. 1813 * @data3: 3rd data parameter to be applied to @fmt. 1814 * 1815 * Description: 1816 * This routine is used by the driver code to add a debugfs log entry to the 1817 * discovery trace buffer associated with @vport. Only entries with a @mask that 1818 * match the current debugfs discovery mask will be saved. Entries that do not 1819 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 1820 * printf when displaying the log. 1821 **/ 1822 inline void 1823 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 1824 uint32_t data1, uint32_t data2, uint32_t data3) 1825 { 1826 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1827 struct lpfc_debugfs_trc *dtp; 1828 int index; 1829 1830 if (!(lpfc_debugfs_mask_disc_trc & mask)) 1831 return; 1832 1833 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 1834 !vport || !vport->disc_trc) 1835 return; 1836 1837 index = atomic_inc_return(&vport->disc_trc_cnt) & 1838 (lpfc_debugfs_max_disc_trc - 1); 1839 dtp = vport->disc_trc + index; 1840 dtp->fmt = fmt; 1841 dtp->data1 = data1; 1842 dtp->data2 = data2; 1843 dtp->data3 = data3; 1844 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1845 dtp->jif = jiffies; 1846 #endif 1847 return; 1848 } 1849 1850 /** 1851 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 1852 * @phba: The phba to associate this trace string with for retrieval. 1853 * @fmt: Format string to be displayed when dumping the log. 1854 * @data1: 1st data parameter to be applied to @fmt. 1855 * @data2: 2nd data parameter to be applied to @fmt. 1856 * @data3: 3rd data parameter to be applied to @fmt. 1857 * 1858 * Description: 1859 * This routine is used by the driver code to add a debugfs log entry to the 1860 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 1861 * @data3 are used like printf when displaying the log. 1862 **/ 1863 inline void 1864 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 1865 uint32_t data1, uint32_t data2, uint32_t data3) 1866 { 1867 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1868 struct lpfc_debugfs_trc *dtp; 1869 int index; 1870 1871 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 1872 !phba || !phba->slow_ring_trc) 1873 return; 1874 1875 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 1876 (lpfc_debugfs_max_slow_ring_trc - 1); 1877 dtp = phba->slow_ring_trc + index; 1878 dtp->fmt = fmt; 1879 dtp->data1 = data1; 1880 dtp->data2 = data2; 1881 dtp->data3 = data3; 1882 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1883 dtp->jif = jiffies; 1884 #endif 1885 return; 1886 } 1887 1888 /** 1889 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log 1890 * @phba: The phba to associate this trace string with for retrieval. 1891 * @fmt: Format string to be displayed when dumping the log. 1892 * @data1: 1st data parameter to be applied to @fmt. 1893 * @data2: 2nd data parameter to be applied to @fmt. 1894 * @data3: 3rd data parameter to be applied to @fmt. 1895 * 1896 * Description: 1897 * This routine is used by the driver code to add a debugfs log entry to the 1898 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and 1899 * @data3 are used like printf when displaying the log. 1900 **/ 1901 inline void 1902 lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, 1903 uint16_t data1, uint16_t data2, uint32_t data3) 1904 { 1905 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1906 struct lpfc_debugfs_nvmeio_trc *dtp; 1907 int index; 1908 1909 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) 1910 return; 1911 1912 index = atomic_inc_return(&phba->nvmeio_trc_cnt) & 1913 (phba->nvmeio_trc_size - 1); 1914 dtp = phba->nvmeio_trc + index; 1915 dtp->fmt = fmt; 1916 dtp->data1 = data1; 1917 dtp->data2 = data2; 1918 dtp->data3 = data3; 1919 #endif 1920 } 1921 1922 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1923 /** 1924 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 1925 * @inode: The inode pointer that contains a vport pointer. 1926 * @file: The file pointer to attach the log output. 1927 * 1928 * Description: 1929 * This routine is the entry point for the debugfs open file operation. It gets 1930 * the vport from the i_private field in @inode, allocates the necessary buffer 1931 * for the log, fills the buffer from the in-memory log for this vport, and then 1932 * returns a pointer to that log in the private_data field in @file. 1933 * 1934 * Returns: 1935 * This function returns zero if successful. On error it will return a negative 1936 * error value. 1937 **/ 1938 static int 1939 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 1940 { 1941 struct lpfc_vport *vport = inode->i_private; 1942 struct lpfc_debug *debug; 1943 int size; 1944 int rc = -ENOMEM; 1945 1946 if (!lpfc_debugfs_max_disc_trc) { 1947 rc = -ENOSPC; 1948 goto out; 1949 } 1950 1951 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1952 if (!debug) 1953 goto out; 1954 1955 /* Round to page boundary */ 1956 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1957 size = PAGE_ALIGN(size); 1958 1959 debug->buffer = kmalloc(size, GFP_KERNEL); 1960 if (!debug->buffer) { 1961 kfree(debug); 1962 goto out; 1963 } 1964 1965 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 1966 file->private_data = debug; 1967 1968 rc = 0; 1969 out: 1970 return rc; 1971 } 1972 1973 /** 1974 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 1975 * @inode: The inode pointer that contains a vport pointer. 1976 * @file: The file pointer to attach the log output. 1977 * 1978 * Description: 1979 * This routine is the entry point for the debugfs open file operation. It gets 1980 * the vport from the i_private field in @inode, allocates the necessary buffer 1981 * for the log, fills the buffer from the in-memory log for this vport, and then 1982 * returns a pointer to that log in the private_data field in @file. 1983 * 1984 * Returns: 1985 * This function returns zero if successful. On error it will return a negative 1986 * error value. 1987 **/ 1988 static int 1989 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 1990 { 1991 struct lpfc_hba *phba = inode->i_private; 1992 struct lpfc_debug *debug; 1993 int size; 1994 int rc = -ENOMEM; 1995 1996 if (!lpfc_debugfs_max_slow_ring_trc) { 1997 rc = -ENOSPC; 1998 goto out; 1999 } 2000 2001 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2002 if (!debug) 2003 goto out; 2004 2005 /* Round to page boundary */ 2006 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 2007 size = PAGE_ALIGN(size); 2008 2009 debug->buffer = kmalloc(size, GFP_KERNEL); 2010 if (!debug->buffer) { 2011 kfree(debug); 2012 goto out; 2013 } 2014 2015 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 2016 file->private_data = debug; 2017 2018 rc = 0; 2019 out: 2020 return rc; 2021 } 2022 2023 /** 2024 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 2025 * @inode: The inode pointer that contains a vport pointer. 2026 * @file: The file pointer to attach the log output. 2027 * 2028 * Description: 2029 * This routine is the entry point for the debugfs open file operation. It gets 2030 * the vport from the i_private field in @inode, allocates the necessary buffer 2031 * for the log, fills the buffer from the in-memory log for this vport, and then 2032 * returns a pointer to that log in the private_data field in @file. 2033 * 2034 * Returns: 2035 * This function returns zero if successful. On error it will return a negative 2036 * error value. 2037 **/ 2038 static int 2039 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 2040 { 2041 struct lpfc_hba *phba = inode->i_private; 2042 struct lpfc_debug *debug; 2043 int rc = -ENOMEM; 2044 2045 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2046 if (!debug) 2047 goto out; 2048 2049 /* Round to page boundary */ 2050 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 2051 if (!debug->buffer) { 2052 kfree(debug); 2053 goto out; 2054 } 2055 2056 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 2057 LPFC_HBQINFO_SIZE); 2058 file->private_data = debug; 2059 2060 rc = 0; 2061 out: 2062 return rc; 2063 } 2064 2065 /** 2066 * lpfc_debugfs_multixripools_open - Open the multixripool debugfs buffer 2067 * @inode: The inode pointer that contains a hba pointer. 2068 * @file: The file pointer to attach the log output. 2069 * 2070 * Description: 2071 * This routine is the entry point for the debugfs open file operation. It gets 2072 * the hba from the i_private field in @inode, allocates the necessary buffer 2073 * for the log, fills the buffer from the in-memory log for this hba, and then 2074 * returns a pointer to that log in the private_data field in @file. 2075 * 2076 * Returns: 2077 * This function returns zero if successful. On error it will return a negative 2078 * error value. 2079 **/ 2080 static int 2081 lpfc_debugfs_multixripools_open(struct inode *inode, struct file *file) 2082 { 2083 struct lpfc_hba *phba = inode->i_private; 2084 struct lpfc_debug *debug; 2085 int rc = -ENOMEM; 2086 2087 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2088 if (!debug) 2089 goto out; 2090 2091 /* Round to page boundary */ 2092 debug->buffer = kzalloc(LPFC_DUMP_MULTIXRIPOOL_SIZE, GFP_KERNEL); 2093 if (!debug->buffer) { 2094 kfree(debug); 2095 goto out; 2096 } 2097 2098 debug->len = lpfc_debugfs_multixripools_data( 2099 phba, debug->buffer, LPFC_DUMP_MULTIXRIPOOL_SIZE); 2100 2101 debug->i_private = inode->i_private; 2102 file->private_data = debug; 2103 2104 rc = 0; 2105 out: 2106 return rc; 2107 } 2108 2109 #ifdef LPFC_HDWQ_LOCK_STAT 2110 /** 2111 * lpfc_debugfs_lockstat_open - Open the lockstat debugfs buffer 2112 * @inode: The inode pointer that contains a vport pointer. 2113 * @file: The file pointer to attach the log output. 2114 * 2115 * Description: 2116 * This routine is the entry point for the debugfs open file operation. It gets 2117 * the vport from the i_private field in @inode, allocates the necessary buffer 2118 * for the log, fills the buffer from the in-memory log for this vport, and then 2119 * returns a pointer to that log in the private_data field in @file. 2120 * 2121 * Returns: 2122 * This function returns zero if successful. On error it will return a negative 2123 * error value. 2124 **/ 2125 static int 2126 lpfc_debugfs_lockstat_open(struct inode *inode, struct file *file) 2127 { 2128 struct lpfc_hba *phba = inode->i_private; 2129 struct lpfc_debug *debug; 2130 int rc = -ENOMEM; 2131 2132 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2133 if (!debug) 2134 goto out; 2135 2136 /* Round to page boundary */ 2137 debug->buffer = kmalloc(LPFC_HDWQINFO_SIZE, GFP_KERNEL); 2138 if (!debug->buffer) { 2139 kfree(debug); 2140 goto out; 2141 } 2142 2143 debug->len = lpfc_debugfs_lockstat_data(phba, debug->buffer, 2144 LPFC_HBQINFO_SIZE); 2145 file->private_data = debug; 2146 2147 rc = 0; 2148 out: 2149 return rc; 2150 } 2151 2152 static ssize_t 2153 lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf, 2154 size_t nbytes, loff_t *ppos) 2155 { 2156 struct lpfc_debug *debug = file->private_data; 2157 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2158 struct lpfc_sli4_hdw_queue *qp; 2159 char mybuf[64]; 2160 char *pbuf; 2161 int i; 2162 2163 memset(mybuf, 0, sizeof(mybuf)); 2164 2165 if (copy_from_user(mybuf, buf, nbytes)) 2166 return -EFAULT; 2167 pbuf = &mybuf[0]; 2168 2169 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2170 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2171 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2172 qp = &phba->sli4_hba.hdwq[i]; 2173 qp->lock_conflict.alloc_xri_get = 0; 2174 qp->lock_conflict.alloc_xri_put = 0; 2175 qp->lock_conflict.free_xri = 0; 2176 qp->lock_conflict.wq_access = 0; 2177 qp->lock_conflict.alloc_pvt_pool = 0; 2178 qp->lock_conflict.mv_from_pvt_pool = 0; 2179 qp->lock_conflict.mv_to_pub_pool = 0; 2180 qp->lock_conflict.mv_to_pvt_pool = 0; 2181 qp->lock_conflict.free_pvt_pool = 0; 2182 qp->lock_conflict.free_pub_pool = 0; 2183 qp->lock_conflict.wq_access = 0; 2184 } 2185 } 2186 return nbytes; 2187 } 2188 #endif 2189 2190 static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba, 2191 char *buffer, int size) 2192 { 2193 int copied = 0; 2194 struct lpfc_dmabuf *dmabuf, *next; 2195 2196 memset(buffer, 0, size); 2197 2198 spin_lock_irq(&phba->hbalock); 2199 if (phba->ras_fwlog.state != ACTIVE) { 2200 spin_unlock_irq(&phba->hbalock); 2201 return -EINVAL; 2202 } 2203 spin_unlock_irq(&phba->hbalock); 2204 2205 list_for_each_entry_safe(dmabuf, next, 2206 &phba->ras_fwlog.fwlog_buff_list, list) { 2207 /* Check if copying will go over size and a '\0' char */ 2208 if ((copied + LPFC_RAS_MAX_ENTRY_SIZE) >= (size - 1)) { 2209 memcpy(buffer + copied, dmabuf->virt, 2210 size - copied - 1); 2211 copied += size - copied - 1; 2212 break; 2213 } 2214 memcpy(buffer + copied, dmabuf->virt, LPFC_RAS_MAX_ENTRY_SIZE); 2215 copied += LPFC_RAS_MAX_ENTRY_SIZE; 2216 } 2217 return copied; 2218 } 2219 2220 static int 2221 lpfc_debugfs_ras_log_release(struct inode *inode, struct file *file) 2222 { 2223 struct lpfc_debug *debug = file->private_data; 2224 2225 vfree(debug->buffer); 2226 kfree(debug); 2227 2228 return 0; 2229 } 2230 2231 /** 2232 * lpfc_debugfs_ras_log_open - Open the RAS log debugfs buffer 2233 * @inode: The inode pointer that contains a vport pointer. 2234 * @file: The file pointer to attach the log output. 2235 * 2236 * Description: 2237 * This routine is the entry point for the debugfs open file operation. It gets 2238 * the vport from the i_private field in @inode, allocates the necessary buffer 2239 * for the log, fills the buffer from the in-memory log for this vport, and then 2240 * returns a pointer to that log in the private_data field in @file. 2241 * 2242 * Returns: 2243 * This function returns zero if successful. On error it will return a negative 2244 * error value. 2245 **/ 2246 static int 2247 lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file) 2248 { 2249 struct lpfc_hba *phba = inode->i_private; 2250 struct lpfc_debug *debug; 2251 int size; 2252 int rc = -ENOMEM; 2253 2254 spin_lock_irq(&phba->hbalock); 2255 if (phba->ras_fwlog.state != ACTIVE) { 2256 spin_unlock_irq(&phba->hbalock); 2257 rc = -EINVAL; 2258 goto out; 2259 } 2260 spin_unlock_irq(&phba->hbalock); 2261 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2262 if (!debug) 2263 goto out; 2264 2265 size = LPFC_RAS_MIN_BUFF_POST_SIZE * phba->cfg_ras_fwlog_buffsize; 2266 debug->buffer = vmalloc(size); 2267 if (!debug->buffer) 2268 goto free_debug; 2269 2270 debug->len = lpfc_debugfs_ras_log_data(phba, debug->buffer, size); 2271 if (debug->len < 0) { 2272 rc = -EINVAL; 2273 goto free_buffer; 2274 } 2275 file->private_data = debug; 2276 2277 return 0; 2278 2279 free_buffer: 2280 vfree(debug->buffer); 2281 free_debug: 2282 kfree(debug); 2283 out: 2284 return rc; 2285 } 2286 2287 /** 2288 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 2289 * @inode: The inode pointer that contains a vport pointer. 2290 * @file: The file pointer to attach the log output. 2291 * 2292 * Description: 2293 * This routine is the entry point for the debugfs open file operation. It gets 2294 * the vport from the i_private field in @inode, allocates the necessary buffer 2295 * for the log, fills the buffer from the in-memory log for this vport, and then 2296 * returns a pointer to that log in the private_data field in @file. 2297 * 2298 * Returns: 2299 * This function returns zero if successful. On error it will return a negative 2300 * error value. 2301 **/ 2302 static int 2303 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 2304 { 2305 struct lpfc_hba *phba = inode->i_private; 2306 struct lpfc_debug *debug; 2307 int rc = -ENOMEM; 2308 2309 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2310 if (!debug) 2311 goto out; 2312 2313 /* Round to page boundary */ 2314 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 2315 if (!debug->buffer) { 2316 kfree(debug); 2317 goto out; 2318 } 2319 2320 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 2321 LPFC_DUMPHBASLIM_SIZE); 2322 file->private_data = debug; 2323 2324 rc = 0; 2325 out: 2326 return rc; 2327 } 2328 2329 /** 2330 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 2331 * @inode: The inode pointer that contains a vport pointer. 2332 * @file: The file pointer to attach the log output. 2333 * 2334 * Description: 2335 * This routine is the entry point for the debugfs open file operation. It gets 2336 * the vport from the i_private field in @inode, allocates the necessary buffer 2337 * for the log, fills the buffer from the in-memory log for this vport, and then 2338 * returns a pointer to that log in the private_data field in @file. 2339 * 2340 * Returns: 2341 * This function returns zero if successful. On error it will return a negative 2342 * error value. 2343 **/ 2344 static int 2345 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 2346 { 2347 struct lpfc_hba *phba = inode->i_private; 2348 struct lpfc_debug *debug; 2349 int rc = -ENOMEM; 2350 2351 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2352 if (!debug) 2353 goto out; 2354 2355 /* Round to page boundary */ 2356 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 2357 if (!debug->buffer) { 2358 kfree(debug); 2359 goto out; 2360 } 2361 2362 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 2363 LPFC_DUMPHOSTSLIM_SIZE); 2364 file->private_data = debug; 2365 2366 rc = 0; 2367 out: 2368 return rc; 2369 } 2370 2371 static ssize_t 2372 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 2373 size_t nbytes, loff_t *ppos) 2374 { 2375 struct dentry *dent = file->f_path.dentry; 2376 struct lpfc_hba *phba = file->private_data; 2377 char cbuf[32]; 2378 uint64_t tmp = 0; 2379 int cnt = 0; 2380 2381 if (dent == phba->debug_writeGuard) 2382 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); 2383 else if (dent == phba->debug_writeApp) 2384 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); 2385 else if (dent == phba->debug_writeRef) 2386 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); 2387 else if (dent == phba->debug_readGuard) 2388 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); 2389 else if (dent == phba->debug_readApp) 2390 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); 2391 else if (dent == phba->debug_readRef) 2392 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); 2393 else if (dent == phba->debug_InjErrNPortID) 2394 cnt = scnprintf(cbuf, 32, "0x%06x\n", 2395 phba->lpfc_injerr_nportid); 2396 else if (dent == phba->debug_InjErrWWPN) { 2397 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); 2398 tmp = cpu_to_be64(tmp); 2399 cnt = scnprintf(cbuf, 32, "0x%016llx\n", tmp); 2400 } else if (dent == phba->debug_InjErrLBA) { 2401 if (phba->lpfc_injerr_lba == (sector_t)(-1)) 2402 cnt = scnprintf(cbuf, 32, "off\n"); 2403 else 2404 cnt = scnprintf(cbuf, 32, "0x%llx\n", 2405 (uint64_t) phba->lpfc_injerr_lba); 2406 } else 2407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2408 "0547 Unknown debugfs error injection entry\n"); 2409 2410 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 2411 } 2412 2413 static ssize_t 2414 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 2415 size_t nbytes, loff_t *ppos) 2416 { 2417 struct dentry *dent = file->f_path.dentry; 2418 struct lpfc_hba *phba = file->private_data; 2419 char dstbuf[33]; 2420 uint64_t tmp = 0; 2421 int size; 2422 2423 memset(dstbuf, 0, 33); 2424 size = (nbytes < 32) ? nbytes : 32; 2425 if (copy_from_user(dstbuf, buf, size)) 2426 return 0; 2427 2428 if (dent == phba->debug_InjErrLBA) { 2429 if ((dstbuf[0] == 'o') && (dstbuf[1] == 'f') && 2430 (dstbuf[2] == 'f')) 2431 tmp = (uint64_t)(-1); 2432 } 2433 2434 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) 2435 return 0; 2436 2437 if (dent == phba->debug_writeGuard) 2438 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 2439 else if (dent == phba->debug_writeApp) 2440 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 2441 else if (dent == phba->debug_writeRef) 2442 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 2443 else if (dent == phba->debug_readGuard) 2444 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 2445 else if (dent == phba->debug_readApp) 2446 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 2447 else if (dent == phba->debug_readRef) 2448 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 2449 else if (dent == phba->debug_InjErrLBA) 2450 phba->lpfc_injerr_lba = (sector_t)tmp; 2451 else if (dent == phba->debug_InjErrNPortID) 2452 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 2453 else if (dent == phba->debug_InjErrWWPN) { 2454 tmp = cpu_to_be64(tmp); 2455 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); 2456 } else 2457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2458 "0548 Unknown debugfs error injection entry\n"); 2459 2460 return nbytes; 2461 } 2462 2463 static int 2464 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 2465 { 2466 return 0; 2467 } 2468 2469 /** 2470 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 2471 * @inode: The inode pointer that contains a vport pointer. 2472 * @file: The file pointer to attach the log output. 2473 * 2474 * Description: 2475 * This routine is the entry point for the debugfs open file operation. It gets 2476 * the vport from the i_private field in @inode, allocates the necessary buffer 2477 * for the log, fills the buffer from the in-memory log for this vport, and then 2478 * returns a pointer to that log in the private_data field in @file. 2479 * 2480 * Returns: 2481 * This function returns zero if successful. On error it will return a negative 2482 * error value. 2483 **/ 2484 static int 2485 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 2486 { 2487 struct lpfc_vport *vport = inode->i_private; 2488 struct lpfc_debug *debug; 2489 int rc = -ENOMEM; 2490 2491 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2492 if (!debug) 2493 goto out; 2494 2495 /* Round to page boundary */ 2496 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 2497 if (!debug->buffer) { 2498 kfree(debug); 2499 goto out; 2500 } 2501 2502 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 2503 LPFC_NODELIST_SIZE); 2504 file->private_data = debug; 2505 2506 rc = 0; 2507 out: 2508 return rc; 2509 } 2510 2511 /** 2512 * lpfc_debugfs_lseek - Seek through a debugfs file 2513 * @file: The file pointer to seek through. 2514 * @off: The offset to seek to or the amount to seek by. 2515 * @whence: Indicates how to seek. 2516 * 2517 * Description: 2518 * This routine is the entry point for the debugfs lseek file operation. The 2519 * @whence parameter indicates whether @off is the offset to directly seek to, 2520 * or if it is a value to seek forward or reverse by. This function figures out 2521 * what the new offset of the debugfs file will be and assigns that value to the 2522 * f_pos field of @file. 2523 * 2524 * Returns: 2525 * This function returns the new offset if successful and returns a negative 2526 * error if unable to process the seek. 2527 **/ 2528 static loff_t 2529 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 2530 { 2531 struct lpfc_debug *debug = file->private_data; 2532 return fixed_size_llseek(file, off, whence, debug->len); 2533 } 2534 2535 /** 2536 * lpfc_debugfs_read - Read a debugfs file 2537 * @file: The file pointer to read from. 2538 * @buf: The buffer to copy the data to. 2539 * @nbytes: The number of bytes to read. 2540 * @ppos: The position in the file to start reading from. 2541 * 2542 * Description: 2543 * This routine reads data from from the buffer indicated in the private_data 2544 * field of @file. It will start reading at @ppos and copy up to @nbytes of 2545 * data to @buf. 2546 * 2547 * Returns: 2548 * This function returns the amount of data that was read (this could be less 2549 * than @nbytes if the end of the file was reached) or a negative error value. 2550 **/ 2551 static ssize_t 2552 lpfc_debugfs_read(struct file *file, char __user *buf, 2553 size_t nbytes, loff_t *ppos) 2554 { 2555 struct lpfc_debug *debug = file->private_data; 2556 2557 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 2558 debug->len); 2559 } 2560 2561 /** 2562 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 2563 * @inode: The inode pointer that contains a vport pointer. (unused) 2564 * @file: The file pointer that contains the buffer to release. 2565 * 2566 * Description: 2567 * This routine frees the buffer that was allocated when the debugfs file was 2568 * opened. 2569 * 2570 * Returns: 2571 * This function returns zero. 2572 **/ 2573 static int 2574 lpfc_debugfs_release(struct inode *inode, struct file *file) 2575 { 2576 struct lpfc_debug *debug = file->private_data; 2577 2578 kfree(debug->buffer); 2579 kfree(debug); 2580 2581 return 0; 2582 } 2583 2584 /** 2585 * lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics 2586 * @file: The file pointer to read from. 2587 * @buf: The buffer to copy the user data from. 2588 * @nbytes: The number of bytes to get. 2589 * @ppos: The position in the file to start reading from. 2590 * 2591 * Description: 2592 * This routine clears multi-XRI pools statistics when buf contains "clear". 2593 * 2594 * Return Value: 2595 * It returns the @nbytges passing in from debugfs user space when successful. 2596 * In case of error conditions, it returns proper error code back to the user 2597 * space. 2598 **/ 2599 static ssize_t 2600 lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf, 2601 size_t nbytes, loff_t *ppos) 2602 { 2603 struct lpfc_debug *debug = file->private_data; 2604 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2605 char mybuf[64]; 2606 char *pbuf; 2607 u32 i; 2608 u32 hwq_count; 2609 struct lpfc_sli4_hdw_queue *qp; 2610 struct lpfc_multixri_pool *multixri_pool; 2611 2612 if (nbytes > 64) 2613 nbytes = 64; 2614 2615 memset(mybuf, 0, sizeof(mybuf)); 2616 2617 if (copy_from_user(mybuf, buf, nbytes)) 2618 return -EFAULT; 2619 pbuf = &mybuf[0]; 2620 2621 if ((strncmp(pbuf, "clear", strlen("clear"))) == 0) { 2622 hwq_count = phba->cfg_hdw_queue; 2623 for (i = 0; i < hwq_count; i++) { 2624 qp = &phba->sli4_hba.hdwq[i]; 2625 multixri_pool = qp->p_multixri_pool; 2626 if (!multixri_pool) 2627 continue; 2628 2629 qp->empty_io_bufs = 0; 2630 multixri_pool->pbl_empty_count = 0; 2631 #ifdef LPFC_MXP_STAT 2632 multixri_pool->above_limit_count = 0; 2633 multixri_pool->below_limit_count = 0; 2634 multixri_pool->stat_max_hwm = 0; 2635 multixri_pool->local_pbl_hit_count = 0; 2636 multixri_pool->other_pbl_hit_count = 0; 2637 2638 multixri_pool->stat_pbl_count = 0; 2639 multixri_pool->stat_pvt_count = 0; 2640 multixri_pool->stat_busy_count = 0; 2641 multixri_pool->stat_snapshot_taken = 0; 2642 #endif 2643 } 2644 return strlen(pbuf); 2645 } 2646 2647 return -EINVAL; 2648 } 2649 2650 static int 2651 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 2652 { 2653 struct lpfc_vport *vport = inode->i_private; 2654 struct lpfc_debug *debug; 2655 int rc = -ENOMEM; 2656 2657 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2658 if (!debug) 2659 goto out; 2660 2661 /* Round to page boundary */ 2662 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 2663 if (!debug->buffer) { 2664 kfree(debug); 2665 goto out; 2666 } 2667 2668 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 2669 LPFC_NVMESTAT_SIZE); 2670 2671 debug->i_private = inode->i_private; 2672 file->private_data = debug; 2673 2674 rc = 0; 2675 out: 2676 return rc; 2677 } 2678 2679 static ssize_t 2680 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 2681 size_t nbytes, loff_t *ppos) 2682 { 2683 struct lpfc_debug *debug = file->private_data; 2684 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2685 struct lpfc_hba *phba = vport->phba; 2686 struct lpfc_nvmet_tgtport *tgtp; 2687 char mybuf[64]; 2688 char *pbuf; 2689 2690 if (!phba->targetport) 2691 return -ENXIO; 2692 2693 if (nbytes > 64) 2694 nbytes = 64; 2695 2696 memset(mybuf, 0, sizeof(mybuf)); 2697 2698 if (copy_from_user(mybuf, buf, nbytes)) 2699 return -EFAULT; 2700 pbuf = &mybuf[0]; 2701 2702 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2703 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2704 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2705 atomic_set(&tgtp->rcv_ls_req_in, 0); 2706 atomic_set(&tgtp->rcv_ls_req_out, 0); 2707 atomic_set(&tgtp->rcv_ls_req_drop, 0); 2708 atomic_set(&tgtp->xmt_ls_abort, 0); 2709 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 2710 atomic_set(&tgtp->xmt_ls_rsp, 0); 2711 atomic_set(&tgtp->xmt_ls_drop, 0); 2712 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 2713 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 2714 2715 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 2716 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 2717 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 2718 atomic_set(&tgtp->xmt_fcp_drop, 0); 2719 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 2720 atomic_set(&tgtp->xmt_fcp_read, 0); 2721 atomic_set(&tgtp->xmt_fcp_write, 0); 2722 atomic_set(&tgtp->xmt_fcp_rsp, 0); 2723 atomic_set(&tgtp->xmt_fcp_release, 0); 2724 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 2725 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 2726 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 2727 2728 atomic_set(&tgtp->xmt_fcp_abort, 0); 2729 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 2730 atomic_set(&tgtp->xmt_abort_sol, 0); 2731 atomic_set(&tgtp->xmt_abort_unsol, 0); 2732 atomic_set(&tgtp->xmt_abort_rsp, 0); 2733 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 2734 } 2735 return nbytes; 2736 } 2737 2738 static int 2739 lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file) 2740 { 2741 struct lpfc_vport *vport = inode->i_private; 2742 struct lpfc_debug *debug; 2743 int rc = -ENOMEM; 2744 2745 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2746 if (!debug) 2747 goto out; 2748 2749 /* Round to page boundary */ 2750 debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL); 2751 if (!debug->buffer) { 2752 kfree(debug); 2753 goto out; 2754 } 2755 2756 debug->len = lpfc_debugfs_scsistat_data(vport, debug->buffer, 2757 LPFC_SCSISTAT_SIZE); 2758 2759 debug->i_private = inode->i_private; 2760 file->private_data = debug; 2761 2762 rc = 0; 2763 out: 2764 return rc; 2765 } 2766 2767 static ssize_t 2768 lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf, 2769 size_t nbytes, loff_t *ppos) 2770 { 2771 struct lpfc_debug *debug = file->private_data; 2772 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2773 struct lpfc_hba *phba = vport->phba; 2774 char mybuf[6] = {0}; 2775 int i; 2776 2777 if (copy_from_user(mybuf, buf, (nbytes >= sizeof(mybuf)) ? 2778 (sizeof(mybuf) - 1) : nbytes)) 2779 return -EFAULT; 2780 2781 if ((strncmp(&mybuf[0], "reset", strlen("reset")) == 0) || 2782 (strncmp(&mybuf[0], "zero", strlen("zero")) == 0)) { 2783 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2784 memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0, 2785 sizeof(phba->sli4_hba.hdwq[i].scsi_cstat)); 2786 } 2787 } 2788 2789 return nbytes; 2790 } 2791 2792 static int 2793 lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file) 2794 { 2795 struct lpfc_vport *vport = inode->i_private; 2796 struct lpfc_debug *debug; 2797 int rc = -ENOMEM; 2798 2799 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2800 if (!debug) 2801 goto out; 2802 2803 /* Round to page boundary */ 2804 debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL); 2805 if (!debug->buffer) { 2806 kfree(debug); 2807 goto out; 2808 } 2809 2810 debug->len = lpfc_debugfs_ioktime_data(vport, debug->buffer, 2811 LPFC_IOKTIME_SIZE); 2812 2813 debug->i_private = inode->i_private; 2814 file->private_data = debug; 2815 2816 rc = 0; 2817 out: 2818 return rc; 2819 } 2820 2821 static ssize_t 2822 lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf, 2823 size_t nbytes, loff_t *ppos) 2824 { 2825 struct lpfc_debug *debug = file->private_data; 2826 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2827 struct lpfc_hba *phba = vport->phba; 2828 char mybuf[64]; 2829 char *pbuf; 2830 2831 if (nbytes > 64) 2832 nbytes = 64; 2833 2834 memset(mybuf, 0, sizeof(mybuf)); 2835 2836 if (copy_from_user(mybuf, buf, nbytes)) 2837 return -EFAULT; 2838 pbuf = &mybuf[0]; 2839 2840 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2841 phba->ktime_data_samples = 0; 2842 phba->ktime_status_samples = 0; 2843 phba->ktime_seg1_total = 0; 2844 phba->ktime_seg1_max = 0; 2845 phba->ktime_seg1_min = 0xffffffff; 2846 phba->ktime_seg2_total = 0; 2847 phba->ktime_seg2_max = 0; 2848 phba->ktime_seg2_min = 0xffffffff; 2849 phba->ktime_seg3_total = 0; 2850 phba->ktime_seg3_max = 0; 2851 phba->ktime_seg3_min = 0xffffffff; 2852 phba->ktime_seg4_total = 0; 2853 phba->ktime_seg4_max = 0; 2854 phba->ktime_seg4_min = 0xffffffff; 2855 phba->ktime_seg5_total = 0; 2856 phba->ktime_seg5_max = 0; 2857 phba->ktime_seg5_min = 0xffffffff; 2858 phba->ktime_seg6_total = 0; 2859 phba->ktime_seg6_max = 0; 2860 phba->ktime_seg6_min = 0xffffffff; 2861 phba->ktime_seg7_total = 0; 2862 phba->ktime_seg7_max = 0; 2863 phba->ktime_seg7_min = 0xffffffff; 2864 phba->ktime_seg8_total = 0; 2865 phba->ktime_seg8_max = 0; 2866 phba->ktime_seg8_min = 0xffffffff; 2867 phba->ktime_seg9_total = 0; 2868 phba->ktime_seg9_max = 0; 2869 phba->ktime_seg9_min = 0xffffffff; 2870 phba->ktime_seg10_total = 0; 2871 phba->ktime_seg10_max = 0; 2872 phba->ktime_seg10_min = 0xffffffff; 2873 2874 phba->ktime_on = 1; 2875 return strlen(pbuf); 2876 } else if ((strncmp(pbuf, "off", 2877 sizeof("off") - 1) == 0)) { 2878 phba->ktime_on = 0; 2879 return strlen(pbuf); 2880 } else if ((strncmp(pbuf, "zero", 2881 sizeof("zero") - 1) == 0)) { 2882 phba->ktime_data_samples = 0; 2883 phba->ktime_status_samples = 0; 2884 phba->ktime_seg1_total = 0; 2885 phba->ktime_seg1_max = 0; 2886 phba->ktime_seg1_min = 0xffffffff; 2887 phba->ktime_seg2_total = 0; 2888 phba->ktime_seg2_max = 0; 2889 phba->ktime_seg2_min = 0xffffffff; 2890 phba->ktime_seg3_total = 0; 2891 phba->ktime_seg3_max = 0; 2892 phba->ktime_seg3_min = 0xffffffff; 2893 phba->ktime_seg4_total = 0; 2894 phba->ktime_seg4_max = 0; 2895 phba->ktime_seg4_min = 0xffffffff; 2896 phba->ktime_seg5_total = 0; 2897 phba->ktime_seg5_max = 0; 2898 phba->ktime_seg5_min = 0xffffffff; 2899 phba->ktime_seg6_total = 0; 2900 phba->ktime_seg6_max = 0; 2901 phba->ktime_seg6_min = 0xffffffff; 2902 phba->ktime_seg7_total = 0; 2903 phba->ktime_seg7_max = 0; 2904 phba->ktime_seg7_min = 0xffffffff; 2905 phba->ktime_seg8_total = 0; 2906 phba->ktime_seg8_max = 0; 2907 phba->ktime_seg8_min = 0xffffffff; 2908 phba->ktime_seg9_total = 0; 2909 phba->ktime_seg9_max = 0; 2910 phba->ktime_seg9_min = 0xffffffff; 2911 phba->ktime_seg10_total = 0; 2912 phba->ktime_seg10_max = 0; 2913 phba->ktime_seg10_min = 0xffffffff; 2914 return strlen(pbuf); 2915 } 2916 return -EINVAL; 2917 } 2918 2919 static int 2920 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2921 { 2922 struct lpfc_hba *phba = inode->i_private; 2923 struct lpfc_debug *debug; 2924 int rc = -ENOMEM; 2925 2926 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2927 if (!debug) 2928 goto out; 2929 2930 /* Round to page boundary */ 2931 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2932 if (!debug->buffer) { 2933 kfree(debug); 2934 goto out; 2935 } 2936 2937 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2938 LPFC_NVMEIO_TRC_SIZE); 2939 2940 debug->i_private = inode->i_private; 2941 file->private_data = debug; 2942 2943 rc = 0; 2944 out: 2945 return rc; 2946 } 2947 2948 static ssize_t 2949 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2950 size_t nbytes, loff_t *ppos) 2951 { 2952 struct lpfc_debug *debug = file->private_data; 2953 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2954 int i; 2955 unsigned long sz; 2956 char mybuf[64]; 2957 char *pbuf; 2958 2959 if (nbytes > 64) 2960 nbytes = 64; 2961 2962 memset(mybuf, 0, sizeof(mybuf)); 2963 2964 if (copy_from_user(mybuf, buf, nbytes)) 2965 return -EFAULT; 2966 pbuf = &mybuf[0]; 2967 2968 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2969 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2970 "0570 nvmeio_trc_off\n"); 2971 phba->nvmeio_trc_output_idx = 0; 2972 phba->nvmeio_trc_on = 0; 2973 return strlen(pbuf); 2974 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2976 "0571 nvmeio_trc_on\n"); 2977 phba->nvmeio_trc_output_idx = 0; 2978 phba->nvmeio_trc_on = 1; 2979 return strlen(pbuf); 2980 } 2981 2982 /* We must be off to allocate the trace buffer */ 2983 if (phba->nvmeio_trc_on != 0) 2984 return -EINVAL; 2985 2986 /* If not on or off, the parameter is the trace buffer size */ 2987 i = kstrtoul(pbuf, 0, &sz); 2988 if (i) 2989 return -EINVAL; 2990 phba->nvmeio_trc_size = (uint32_t)sz; 2991 2992 /* It must be a power of 2 - round down */ 2993 i = 0; 2994 while (sz > 1) { 2995 sz = sz >> 1; 2996 i++; 2997 } 2998 sz = (1 << i); 2999 if (phba->nvmeio_trc_size != sz) 3000 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3001 "0572 nvmeio_trc_size changed to %ld\n", 3002 sz); 3003 phba->nvmeio_trc_size = (uint32_t)sz; 3004 3005 /* If one previously exists, free it */ 3006 kfree(phba->nvmeio_trc); 3007 3008 /* Allocate new trace buffer and initialize */ 3009 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 3010 sz), GFP_KERNEL); 3011 if (!phba->nvmeio_trc) { 3012 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3013 "0573 Cannot create debugfs " 3014 "nvmeio_trc buffer\n"); 3015 return -ENOMEM; 3016 } 3017 atomic_set(&phba->nvmeio_trc_cnt, 0); 3018 phba->nvmeio_trc_on = 0; 3019 phba->nvmeio_trc_output_idx = 0; 3020 3021 return strlen(pbuf); 3022 } 3023 3024 static int 3025 lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file) 3026 { 3027 struct lpfc_vport *vport = inode->i_private; 3028 struct lpfc_debug *debug; 3029 int rc = -ENOMEM; 3030 3031 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3032 if (!debug) 3033 goto out; 3034 3035 /* Round to page boundary */ 3036 debug->buffer = kcalloc(1, LPFC_SCSISTAT_SIZE, GFP_KERNEL); 3037 if (!debug->buffer) { 3038 kfree(debug); 3039 goto out; 3040 } 3041 3042 debug->len = lpfc_debugfs_hdwqstat_data(vport, debug->buffer, 3043 LPFC_SCSISTAT_SIZE); 3044 3045 debug->i_private = inode->i_private; 3046 file->private_data = debug; 3047 3048 rc = 0; 3049 out: 3050 return rc; 3051 } 3052 3053 static ssize_t 3054 lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf, 3055 size_t nbytes, loff_t *ppos) 3056 { 3057 struct lpfc_debug *debug = file->private_data; 3058 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 3059 struct lpfc_hba *phba = vport->phba; 3060 struct lpfc_hdwq_stat *c_stat; 3061 char mybuf[64]; 3062 char *pbuf; 3063 int i; 3064 3065 if (nbytes > 64) 3066 nbytes = 64; 3067 3068 memset(mybuf, 0, sizeof(mybuf)); 3069 3070 if (copy_from_user(mybuf, buf, nbytes)) 3071 return -EFAULT; 3072 pbuf = &mybuf[0]; 3073 3074 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 3075 if (phba->nvmet_support) 3076 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3077 else 3078 phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO | 3079 LPFC_CHECK_SCSI_IO); 3080 return strlen(pbuf); 3081 } else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) { 3082 if (phba->nvmet_support) 3083 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3084 else 3085 phba->hdwqstat_on |= LPFC_CHECK_NVME_IO; 3086 return strlen(pbuf); 3087 } else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) { 3088 if (!phba->nvmet_support) 3089 phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO; 3090 return strlen(pbuf); 3091 } else if ((strncmp(pbuf, "nvme_off", sizeof("nvme_off") - 1) == 0)) { 3092 phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO | 3093 LPFC_CHECK_NVMET_IO); 3094 return strlen(pbuf); 3095 } else if ((strncmp(pbuf, "scsi_off", sizeof("scsi_off") - 1) == 0)) { 3096 phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO; 3097 return strlen(pbuf); 3098 } else if ((strncmp(pbuf, "off", 3099 sizeof("off") - 1) == 0)) { 3100 phba->hdwqstat_on = LPFC_CHECK_OFF; 3101 return strlen(pbuf); 3102 } else if ((strncmp(pbuf, "zero", 3103 sizeof("zero") - 1) == 0)) { 3104 for_each_present_cpu(i) { 3105 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i); 3106 c_stat->xmt_io = 0; 3107 c_stat->cmpl_io = 0; 3108 c_stat->rcv_io = 0; 3109 } 3110 return strlen(pbuf); 3111 } 3112 return -EINVAL; 3113 } 3114 3115 /* 3116 * --------------------------------- 3117 * iDiag debugfs file access methods 3118 * --------------------------------- 3119 * 3120 * All access methods are through the proper SLI4 PCI function's debugfs 3121 * iDiag directory: 3122 * 3123 * /sys/kernel/debug/lpfc/fn<#>/iDiag 3124 */ 3125 3126 /** 3127 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 3128 * @buf: The pointer to the user space buffer. 3129 * @nbytes: The number of bytes in the user space buffer. 3130 * @idiag_cmd: pointer to the idiag command struct. 3131 * 3132 * This routine reads data from debugfs user space buffer and parses the 3133 * buffer for getting the idiag command and arguments. The while space in 3134 * between the set of data is used as the parsing separator. 3135 * 3136 * This routine returns 0 when successful, it returns proper error code 3137 * back to the user space in error conditions. 3138 */ 3139 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 3140 struct lpfc_idiag_cmd *idiag_cmd) 3141 { 3142 char mybuf[64]; 3143 char *pbuf, *step_str; 3144 int i; 3145 size_t bsize; 3146 3147 memset(mybuf, 0, sizeof(mybuf)); 3148 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 3149 bsize = min(nbytes, (sizeof(mybuf)-1)); 3150 3151 if (copy_from_user(mybuf, buf, bsize)) 3152 return -EFAULT; 3153 pbuf = &mybuf[0]; 3154 step_str = strsep(&pbuf, "\t "); 3155 3156 /* The opcode must present */ 3157 if (!step_str) 3158 return -EINVAL; 3159 3160 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 3161 if (idiag_cmd->opcode == 0) 3162 return -EINVAL; 3163 3164 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 3165 step_str = strsep(&pbuf, "\t "); 3166 if (!step_str) 3167 return i; 3168 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 3169 } 3170 return i; 3171 } 3172 3173 /** 3174 * lpfc_idiag_open - idiag open debugfs 3175 * @inode: The inode pointer that contains a pointer to phba. 3176 * @file: The file pointer to attach the file operation. 3177 * 3178 * Description: 3179 * This routine is the entry point for the debugfs open file operation. It 3180 * gets the reference to phba from the i_private field in @inode, it then 3181 * allocates buffer for the file operation, performs the necessary PCI config 3182 * space read into the allocated buffer according to the idiag user command 3183 * setup, and then returns a pointer to buffer in the private_data field in 3184 * @file. 3185 * 3186 * Returns: 3187 * This function returns zero if successful. On error it will return an 3188 * negative error value. 3189 **/ 3190 static int 3191 lpfc_idiag_open(struct inode *inode, struct file *file) 3192 { 3193 struct lpfc_debug *debug; 3194 3195 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3196 if (!debug) 3197 return -ENOMEM; 3198 3199 debug->i_private = inode->i_private; 3200 debug->buffer = NULL; 3201 file->private_data = debug; 3202 3203 return 0; 3204 } 3205 3206 /** 3207 * lpfc_idiag_release - Release idiag access file operation 3208 * @inode: The inode pointer that contains a vport pointer. (unused) 3209 * @file: The file pointer that contains the buffer to release. 3210 * 3211 * Description: 3212 * This routine is the generic release routine for the idiag access file 3213 * operation, it frees the buffer that was allocated when the debugfs file 3214 * was opened. 3215 * 3216 * Returns: 3217 * This function returns zero. 3218 **/ 3219 static int 3220 lpfc_idiag_release(struct inode *inode, struct file *file) 3221 { 3222 struct lpfc_debug *debug = file->private_data; 3223 3224 /* Free the buffers to the file operation */ 3225 kfree(debug->buffer); 3226 kfree(debug); 3227 3228 return 0; 3229 } 3230 3231 /** 3232 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 3233 * @inode: The inode pointer that contains a vport pointer. (unused) 3234 * @file: The file pointer that contains the buffer to release. 3235 * 3236 * Description: 3237 * This routine frees the buffer that was allocated when the debugfs file 3238 * was opened. It also reset the fields in the idiag command struct in the 3239 * case of command for write operation. 3240 * 3241 * Returns: 3242 * This function returns zero. 3243 **/ 3244 static int 3245 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 3246 { 3247 struct lpfc_debug *debug = file->private_data; 3248 3249 if (debug->op == LPFC_IDIAG_OP_WR) { 3250 switch (idiag.cmd.opcode) { 3251 case LPFC_IDIAG_CMD_PCICFG_WR: 3252 case LPFC_IDIAG_CMD_PCICFG_ST: 3253 case LPFC_IDIAG_CMD_PCICFG_CL: 3254 case LPFC_IDIAG_CMD_QUEACC_WR: 3255 case LPFC_IDIAG_CMD_QUEACC_ST: 3256 case LPFC_IDIAG_CMD_QUEACC_CL: 3257 memset(&idiag, 0, sizeof(idiag)); 3258 break; 3259 default: 3260 break; 3261 } 3262 } 3263 3264 /* Free the buffers to the file operation */ 3265 kfree(debug->buffer); 3266 kfree(debug); 3267 3268 return 0; 3269 } 3270 3271 /** 3272 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 3273 * @file: The file pointer to read from. 3274 * @buf: The buffer to copy the data to. 3275 * @nbytes: The number of bytes to read. 3276 * @ppos: The position in the file to start reading from. 3277 * 3278 * Description: 3279 * This routine reads data from the @phba pci config space according to the 3280 * idiag command, and copies to user @buf. Depending on the PCI config space 3281 * read command setup, it does either a single register read of a byte 3282 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 3283 * registers from the 4K extended PCI config space. 3284 * 3285 * Returns: 3286 * This function returns the amount of data that was read (this could be less 3287 * than @nbytes if the end of the file was reached) or a negative error value. 3288 **/ 3289 static ssize_t 3290 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 3291 loff_t *ppos) 3292 { 3293 struct lpfc_debug *debug = file->private_data; 3294 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3295 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 3296 int where, count; 3297 char *pbuffer; 3298 struct pci_dev *pdev; 3299 uint32_t u32val; 3300 uint16_t u16val; 3301 uint8_t u8val; 3302 3303 pdev = phba->pcidev; 3304 if (!pdev) 3305 return 0; 3306 3307 /* This is a user read operation */ 3308 debug->op = LPFC_IDIAG_OP_RD; 3309 3310 if (!debug->buffer) 3311 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 3312 if (!debug->buffer) 3313 return 0; 3314 pbuffer = debug->buffer; 3315 3316 if (*ppos) 3317 return 0; 3318 3319 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3320 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3321 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3322 } else 3323 return 0; 3324 3325 /* Read single PCI config space register */ 3326 switch (count) { 3327 case SIZE_U8: /* byte (8 bits) */ 3328 pci_read_config_byte(pdev, where, &u8val); 3329 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3330 "%03x: %02x\n", where, u8val); 3331 break; 3332 case SIZE_U16: /* word (16 bits) */ 3333 pci_read_config_word(pdev, where, &u16val); 3334 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3335 "%03x: %04x\n", where, u16val); 3336 break; 3337 case SIZE_U32: /* double word (32 bits) */ 3338 pci_read_config_dword(pdev, where, &u32val); 3339 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3340 "%03x: %08x\n", where, u32val); 3341 break; 3342 case LPFC_PCI_CFG_BROWSE: /* browse all */ 3343 goto pcicfg_browse; 3344 break; 3345 default: 3346 /* illegal count */ 3347 len = 0; 3348 break; 3349 } 3350 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3351 3352 pcicfg_browse: 3353 3354 /* Browse all PCI config space registers */ 3355 offset_label = idiag.offset.last_rd; 3356 offset = offset_label; 3357 3358 /* Read PCI config space */ 3359 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3360 "%03x: ", offset_label); 3361 while (index > 0) { 3362 pci_read_config_dword(pdev, offset, &u32val); 3363 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3364 "%08x ", u32val); 3365 offset += sizeof(uint32_t); 3366 if (offset >= LPFC_PCI_CFG_SIZE) { 3367 len += scnprintf(pbuffer+len, 3368 LPFC_PCI_CFG_SIZE-len, "\n"); 3369 break; 3370 } 3371 index -= sizeof(uint32_t); 3372 if (!index) 3373 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3374 "\n"); 3375 else if (!(index % (8 * sizeof(uint32_t)))) { 3376 offset_label += (8 * sizeof(uint32_t)); 3377 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3378 "\n%03x: ", offset_label); 3379 } 3380 } 3381 3382 /* Set up the offset for next portion of pci cfg read */ 3383 if (index == 0) { 3384 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 3385 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 3386 idiag.offset.last_rd = 0; 3387 } else 3388 idiag.offset.last_rd = 0; 3389 3390 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3391 } 3392 3393 /** 3394 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 3395 * @file: The file pointer to read from. 3396 * @buf: The buffer to copy the user data from. 3397 * @nbytes: The number of bytes to get. 3398 * @ppos: The position in the file to start reading from. 3399 * 3400 * This routine get the debugfs idiag command struct from user space and 3401 * then perform the syntax check for PCI config space read or write command 3402 * accordingly. In the case of PCI config space read command, it sets up 3403 * the command in the idiag command struct for the debugfs read operation. 3404 * In the case of PCI config space write operation, it executes the write 3405 * operation into the PCI config space accordingly. 3406 * 3407 * It returns the @nbytges passing in from debugfs user space when successful. 3408 * In case of error conditions, it returns proper error code back to the user 3409 * space. 3410 */ 3411 static ssize_t 3412 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 3413 size_t nbytes, loff_t *ppos) 3414 { 3415 struct lpfc_debug *debug = file->private_data; 3416 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3417 uint32_t where, value, count; 3418 uint32_t u32val; 3419 uint16_t u16val; 3420 uint8_t u8val; 3421 struct pci_dev *pdev; 3422 int rc; 3423 3424 pdev = phba->pcidev; 3425 if (!pdev) 3426 return -EFAULT; 3427 3428 /* This is a user write operation */ 3429 debug->op = LPFC_IDIAG_OP_WR; 3430 3431 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3432 if (rc < 0) 3433 return rc; 3434 3435 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3436 /* Sanity check on PCI config read command line arguments */ 3437 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 3438 goto error_out; 3439 /* Read command from PCI config space, set up command fields */ 3440 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3441 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3442 if (count == LPFC_PCI_CFG_BROWSE) { 3443 if (where % sizeof(uint32_t)) 3444 goto error_out; 3445 /* Starting offset to browse */ 3446 idiag.offset.last_rd = where; 3447 } else if ((count != sizeof(uint8_t)) && 3448 (count != sizeof(uint16_t)) && 3449 (count != sizeof(uint32_t))) 3450 goto error_out; 3451 if (count == sizeof(uint8_t)) { 3452 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3453 goto error_out; 3454 if (where % sizeof(uint8_t)) 3455 goto error_out; 3456 } 3457 if (count == sizeof(uint16_t)) { 3458 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3459 goto error_out; 3460 if (where % sizeof(uint16_t)) 3461 goto error_out; 3462 } 3463 if (count == sizeof(uint32_t)) { 3464 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3465 goto error_out; 3466 if (where % sizeof(uint32_t)) 3467 goto error_out; 3468 } 3469 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 3470 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 3471 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3472 /* Sanity check on PCI config write command line arguments */ 3473 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 3474 goto error_out; 3475 /* Write command to PCI config space, read-modify-write */ 3476 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3477 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3478 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 3479 /* Sanity checks */ 3480 if ((count != sizeof(uint8_t)) && 3481 (count != sizeof(uint16_t)) && 3482 (count != sizeof(uint32_t))) 3483 goto error_out; 3484 if (count == sizeof(uint8_t)) { 3485 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3486 goto error_out; 3487 if (where % sizeof(uint8_t)) 3488 goto error_out; 3489 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3490 pci_write_config_byte(pdev, where, 3491 (uint8_t)value); 3492 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3493 rc = pci_read_config_byte(pdev, where, &u8val); 3494 if (!rc) { 3495 u8val |= (uint8_t)value; 3496 pci_write_config_byte(pdev, where, 3497 u8val); 3498 } 3499 } 3500 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3501 rc = pci_read_config_byte(pdev, where, &u8val); 3502 if (!rc) { 3503 u8val &= (uint8_t)(~value); 3504 pci_write_config_byte(pdev, where, 3505 u8val); 3506 } 3507 } 3508 } 3509 if (count == sizeof(uint16_t)) { 3510 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3511 goto error_out; 3512 if (where % sizeof(uint16_t)) 3513 goto error_out; 3514 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3515 pci_write_config_word(pdev, where, 3516 (uint16_t)value); 3517 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3518 rc = pci_read_config_word(pdev, where, &u16val); 3519 if (!rc) { 3520 u16val |= (uint16_t)value; 3521 pci_write_config_word(pdev, where, 3522 u16val); 3523 } 3524 } 3525 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3526 rc = pci_read_config_word(pdev, where, &u16val); 3527 if (!rc) { 3528 u16val &= (uint16_t)(~value); 3529 pci_write_config_word(pdev, where, 3530 u16val); 3531 } 3532 } 3533 } 3534 if (count == sizeof(uint32_t)) { 3535 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3536 goto error_out; 3537 if (where % sizeof(uint32_t)) 3538 goto error_out; 3539 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3540 pci_write_config_dword(pdev, where, value); 3541 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3542 rc = pci_read_config_dword(pdev, where, 3543 &u32val); 3544 if (!rc) { 3545 u32val |= value; 3546 pci_write_config_dword(pdev, where, 3547 u32val); 3548 } 3549 } 3550 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3551 rc = pci_read_config_dword(pdev, where, 3552 &u32val); 3553 if (!rc) { 3554 u32val &= ~value; 3555 pci_write_config_dword(pdev, where, 3556 u32val); 3557 } 3558 } 3559 } 3560 } else 3561 /* All other opecodes are illegal for now */ 3562 goto error_out; 3563 3564 return nbytes; 3565 error_out: 3566 memset(&idiag, 0, sizeof(idiag)); 3567 return -EINVAL; 3568 } 3569 3570 /** 3571 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 3572 * @file: The file pointer to read from. 3573 * @buf: The buffer to copy the data to. 3574 * @nbytes: The number of bytes to read. 3575 * @ppos: The position in the file to start reading from. 3576 * 3577 * Description: 3578 * This routine reads data from the @phba pci bar memory mapped space 3579 * according to the idiag command, and copies to user @buf. 3580 * 3581 * Returns: 3582 * This function returns the amount of data that was read (this could be less 3583 * than @nbytes if the end of the file was reached) or a negative error value. 3584 **/ 3585 static ssize_t 3586 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 3587 loff_t *ppos) 3588 { 3589 struct lpfc_debug *debug = file->private_data; 3590 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3591 int offset_label, offset, offset_run, len = 0, index; 3592 int bar_num, acc_range, bar_size; 3593 char *pbuffer; 3594 void __iomem *mem_mapped_bar; 3595 uint32_t if_type; 3596 struct pci_dev *pdev; 3597 uint32_t u32val; 3598 3599 pdev = phba->pcidev; 3600 if (!pdev) 3601 return 0; 3602 3603 /* This is a user read operation */ 3604 debug->op = LPFC_IDIAG_OP_RD; 3605 3606 if (!debug->buffer) 3607 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 3608 if (!debug->buffer) 3609 return 0; 3610 pbuffer = debug->buffer; 3611 3612 if (*ppos) 3613 return 0; 3614 3615 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3616 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3617 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3618 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3619 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3620 } else 3621 return 0; 3622 3623 if (acc_range == 0) 3624 return 0; 3625 3626 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3627 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3628 if (bar_num == IDIAG_BARACC_BAR_0) 3629 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3630 else if (bar_num == IDIAG_BARACC_BAR_1) 3631 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3632 else if (bar_num == IDIAG_BARACC_BAR_2) 3633 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3634 else 3635 return 0; 3636 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3637 if (bar_num == IDIAG_BARACC_BAR_0) 3638 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3639 else 3640 return 0; 3641 } else 3642 return 0; 3643 3644 /* Read single PCI bar space register */ 3645 if (acc_range == SINGLE_WORD) { 3646 offset_run = offset; 3647 u32val = readl(mem_mapped_bar + offset_run); 3648 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3649 "%05x: %08x\n", offset_run, u32val); 3650 } else 3651 goto baracc_browse; 3652 3653 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3654 3655 baracc_browse: 3656 3657 /* Browse all PCI bar space registers */ 3658 offset_label = idiag.offset.last_rd; 3659 offset_run = offset_label; 3660 3661 /* Read PCI bar memory mapped space */ 3662 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3663 "%05x: ", offset_label); 3664 index = LPFC_PCI_BAR_RD_SIZE; 3665 while (index > 0) { 3666 u32val = readl(mem_mapped_bar + offset_run); 3667 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3668 "%08x ", u32val); 3669 offset_run += sizeof(uint32_t); 3670 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3671 if (offset_run >= bar_size) { 3672 len += scnprintf(pbuffer+len, 3673 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3674 break; 3675 } 3676 } else { 3677 if (offset_run >= offset + 3678 (acc_range * sizeof(uint32_t))) { 3679 len += scnprintf(pbuffer+len, 3680 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3681 break; 3682 } 3683 } 3684 index -= sizeof(uint32_t); 3685 if (!index) 3686 len += scnprintf(pbuffer+len, 3687 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3688 else if (!(index % (8 * sizeof(uint32_t)))) { 3689 offset_label += (8 * sizeof(uint32_t)); 3690 len += scnprintf(pbuffer+len, 3691 LPFC_PCI_BAR_RD_BUF_SIZE-len, 3692 "\n%05x: ", offset_label); 3693 } 3694 } 3695 3696 /* Set up the offset for next portion of pci bar read */ 3697 if (index == 0) { 3698 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 3699 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3700 if (idiag.offset.last_rd >= bar_size) 3701 idiag.offset.last_rd = 0; 3702 } else { 3703 if (offset_run >= offset + 3704 (acc_range * sizeof(uint32_t))) 3705 idiag.offset.last_rd = offset; 3706 } 3707 } else { 3708 if (acc_range == LPFC_PCI_BAR_BROWSE) 3709 idiag.offset.last_rd = 0; 3710 else 3711 idiag.offset.last_rd = offset; 3712 } 3713 3714 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3715 } 3716 3717 /** 3718 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 3719 * @file: The file pointer to read from. 3720 * @buf: The buffer to copy the user data from. 3721 * @nbytes: The number of bytes to get. 3722 * @ppos: The position in the file to start reading from. 3723 * 3724 * This routine get the debugfs idiag command struct from user space and 3725 * then perform the syntax check for PCI bar memory mapped space read or 3726 * write command accordingly. In the case of PCI bar memory mapped space 3727 * read command, it sets up the command in the idiag command struct for 3728 * the debugfs read operation. In the case of PCI bar memorpy mapped space 3729 * write operation, it executes the write operation into the PCI bar memory 3730 * mapped space accordingly. 3731 * 3732 * It returns the @nbytges passing in from debugfs user space when successful. 3733 * In case of error conditions, it returns proper error code back to the user 3734 * space. 3735 */ 3736 static ssize_t 3737 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 3738 size_t nbytes, loff_t *ppos) 3739 { 3740 struct lpfc_debug *debug = file->private_data; 3741 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3742 uint32_t bar_num, bar_size, offset, value, acc_range; 3743 struct pci_dev *pdev; 3744 void __iomem *mem_mapped_bar; 3745 uint32_t if_type; 3746 uint32_t u32val; 3747 int rc; 3748 3749 pdev = phba->pcidev; 3750 if (!pdev) 3751 return -EFAULT; 3752 3753 /* This is a user write operation */ 3754 debug->op = LPFC_IDIAG_OP_WR; 3755 3756 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3757 if (rc < 0) 3758 return rc; 3759 3760 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3761 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3762 3763 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3764 if ((bar_num != IDIAG_BARACC_BAR_0) && 3765 (bar_num != IDIAG_BARACC_BAR_1) && 3766 (bar_num != IDIAG_BARACC_BAR_2)) 3767 goto error_out; 3768 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3769 if (bar_num != IDIAG_BARACC_BAR_0) 3770 goto error_out; 3771 } else 3772 goto error_out; 3773 3774 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3775 if (bar_num == IDIAG_BARACC_BAR_0) { 3776 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3777 LPFC_PCI_IF0_BAR0_SIZE; 3778 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3779 } else if (bar_num == IDIAG_BARACC_BAR_1) { 3780 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3781 LPFC_PCI_IF0_BAR1_SIZE; 3782 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3783 } else if (bar_num == IDIAG_BARACC_BAR_2) { 3784 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3785 LPFC_PCI_IF0_BAR2_SIZE; 3786 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3787 } else 3788 goto error_out; 3789 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3790 if (bar_num == IDIAG_BARACC_BAR_0) { 3791 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3792 LPFC_PCI_IF2_BAR0_SIZE; 3793 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3794 } else 3795 goto error_out; 3796 } else 3797 goto error_out; 3798 3799 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3800 if (offset % sizeof(uint32_t)) 3801 goto error_out; 3802 3803 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3804 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3805 /* Sanity check on PCI config read command line arguments */ 3806 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3807 goto error_out; 3808 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3809 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3810 if (offset > bar_size - sizeof(uint32_t)) 3811 goto error_out; 3812 /* Starting offset to browse */ 3813 idiag.offset.last_rd = offset; 3814 } else if (acc_range > SINGLE_WORD) { 3815 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3816 goto error_out; 3817 /* Starting offset to browse */ 3818 idiag.offset.last_rd = offset; 3819 } else if (acc_range != SINGLE_WORD) 3820 goto error_out; 3821 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3822 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3823 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3824 /* Sanity check on PCI bar write command line arguments */ 3825 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3826 goto error_out; 3827 /* Write command to PCI bar space, read-modify-write */ 3828 acc_range = SINGLE_WORD; 3829 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3830 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3831 writel(value, mem_mapped_bar + offset); 3832 readl(mem_mapped_bar + offset); 3833 } 3834 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3835 u32val = readl(mem_mapped_bar + offset); 3836 u32val |= value; 3837 writel(u32val, mem_mapped_bar + offset); 3838 readl(mem_mapped_bar + offset); 3839 } 3840 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3841 u32val = readl(mem_mapped_bar + offset); 3842 u32val &= ~value; 3843 writel(u32val, mem_mapped_bar + offset); 3844 readl(mem_mapped_bar + offset); 3845 } 3846 } else 3847 /* All other opecodes are illegal for now */ 3848 goto error_out; 3849 3850 return nbytes; 3851 error_out: 3852 memset(&idiag, 0, sizeof(idiag)); 3853 return -EINVAL; 3854 } 3855 3856 static int 3857 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3858 char *pbuffer, int len) 3859 { 3860 if (!qp) 3861 return len; 3862 3863 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3864 "\t\t%s WQ info: ", wqtype); 3865 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3866 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3867 qp->assoc_qid, qp->q_cnt_1, 3868 (unsigned long long)qp->q_cnt_4); 3869 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3870 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3871 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]", 3872 qp->queue_id, qp->entry_count, 3873 qp->entry_size, qp->host_index, 3874 qp->hba_index, qp->notify_interval); 3875 len += scnprintf(pbuffer + len, 3876 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3877 return len; 3878 } 3879 3880 static int 3881 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3882 int *len, int max_cnt, int cq_id) 3883 { 3884 struct lpfc_queue *qp; 3885 int qidx; 3886 3887 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 3888 qp = phba->sli4_hba.hdwq[qidx].io_wq; 3889 if (qp->assoc_qid != cq_id) 3890 continue; 3891 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3892 if (*len >= max_cnt) 3893 return 1; 3894 } 3895 return 0; 3896 } 3897 3898 static int 3899 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3900 char *pbuffer, int len) 3901 { 3902 if (!qp) 3903 return len; 3904 3905 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3906 "\t%s CQ info: ", cqtype); 3907 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3908 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3909 "xabt:x%x wq:x%llx]\n", 3910 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3911 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3912 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3913 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3914 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d]", 3915 qp->queue_id, qp->entry_count, 3916 qp->entry_size, qp->host_index, 3917 qp->notify_interval, qp->max_proc_limit); 3918 3919 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3920 "\n"); 3921 3922 return len; 3923 } 3924 3925 static int 3926 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3927 char *rqtype, char *pbuffer, int len) 3928 { 3929 if (!qp || !datqp) 3930 return len; 3931 3932 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3933 "\t\t%s RQ info: ", rqtype); 3934 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3935 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3936 "posted:x%x rcv:x%llx]\n", 3937 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3938 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3939 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3940 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3941 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3942 qp->queue_id, qp->entry_count, qp->entry_size, 3943 qp->host_index, qp->hba_index, qp->notify_interval); 3944 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3945 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3946 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3947 datqp->queue_id, datqp->entry_count, 3948 datqp->entry_size, datqp->host_index, 3949 datqp->hba_index, datqp->notify_interval); 3950 return len; 3951 } 3952 3953 static int 3954 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3955 int *len, int max_cnt, int eqidx, int eq_id) 3956 { 3957 struct lpfc_queue *qp; 3958 int rc; 3959 3960 qp = phba->sli4_hba.hdwq[eqidx].io_cq; 3961 3962 *len = __lpfc_idiag_print_cq(qp, "IO", pbuffer, *len); 3963 3964 /* Reset max counter */ 3965 qp->CQ_max_cqe = 0; 3966 3967 if (*len >= max_cnt) 3968 return 1; 3969 3970 rc = lpfc_idiag_wqs_for_cq(phba, "IO", pbuffer, len, 3971 max_cnt, qp->queue_id); 3972 if (rc) 3973 return 1; 3974 3975 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) { 3976 /* NVMET CQset */ 3977 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 3978 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 3979 3980 /* Reset max counter */ 3981 qp->CQ_max_cqe = 0; 3982 3983 if (*len >= max_cnt) 3984 return 1; 3985 3986 /* RQ header */ 3987 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 3988 *len = __lpfc_idiag_print_rqpair(qp, 3989 phba->sli4_hba.nvmet_mrq_data[eqidx], 3990 "NVMET MRQ", pbuffer, *len); 3991 3992 if (*len >= max_cnt) 3993 return 1; 3994 } 3995 3996 return 0; 3997 } 3998 3999 static int 4000 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 4001 char *pbuffer, int len) 4002 { 4003 if (!qp) 4004 return len; 4005 4006 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4007 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 4008 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n", 4009 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 4010 (unsigned long long)qp->q_cnt_4, qp->q_mode); 4011 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4012 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 4013 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]", 4014 qp->queue_id, qp->entry_count, qp->entry_size, 4015 qp->host_index, qp->notify_interval, 4016 qp->max_proc_limit, qp->chann); 4017 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4018 "\n"); 4019 4020 return len; 4021 } 4022 4023 /** 4024 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 4025 * @file: The file pointer to read from. 4026 * @buf: The buffer to copy the data to. 4027 * @nbytes: The number of bytes to read. 4028 * @ppos: The position in the file to start reading from. 4029 * 4030 * Description: 4031 * This routine reads data from the @phba SLI4 PCI function queue information, 4032 * and copies to user @buf. 4033 * This routine only returns 1 EQs worth of information. It remembers the last 4034 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 4035 * retrieve all EQs allocated for the phba. 4036 * 4037 * Returns: 4038 * This function returns the amount of data that was read (this could be less 4039 * than @nbytes if the end of the file was reached) or a negative error value. 4040 **/ 4041 static ssize_t 4042 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 4043 loff_t *ppos) 4044 { 4045 struct lpfc_debug *debug = file->private_data; 4046 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4047 char *pbuffer; 4048 int max_cnt, rc, x, len = 0; 4049 struct lpfc_queue *qp = NULL; 4050 4051 if (!debug->buffer) 4052 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 4053 if (!debug->buffer) 4054 return 0; 4055 pbuffer = debug->buffer; 4056 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 4057 4058 if (*ppos) 4059 return 0; 4060 4061 spin_lock_irq(&phba->hbalock); 4062 4063 /* Fast-path event queue */ 4064 if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) { 4065 4066 x = phba->lpfc_idiag_last_eq; 4067 phba->lpfc_idiag_last_eq++; 4068 if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue) 4069 phba->lpfc_idiag_last_eq = 0; 4070 4071 len += scnprintf(pbuffer + len, 4072 LPFC_QUE_INFO_GET_BUF_SIZE - len, 4073 "HDWQ %d out of %d HBA HDWQs\n", 4074 x, phba->cfg_hdw_queue); 4075 4076 /* Fast-path EQ */ 4077 qp = phba->sli4_hba.hdwq[x].hba_eq; 4078 if (!qp) 4079 goto out; 4080 4081 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 4082 4083 /* Reset max counter */ 4084 qp->EQ_max_eqe = 0; 4085 4086 if (len >= max_cnt) 4087 goto too_big; 4088 4089 /* will dump both fcp and nvme cqs/wqs for the eq */ 4090 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 4091 max_cnt, x, qp->queue_id); 4092 if (rc) 4093 goto too_big; 4094 4095 /* Only EQ 0 has slow path CQs configured */ 4096 if (x) 4097 goto out; 4098 4099 /* Slow-path mailbox CQ */ 4100 qp = phba->sli4_hba.mbx_cq; 4101 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 4102 if (len >= max_cnt) 4103 goto too_big; 4104 4105 /* Slow-path MBOX MQ */ 4106 qp = phba->sli4_hba.mbx_wq; 4107 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 4108 if (len >= max_cnt) 4109 goto too_big; 4110 4111 /* Slow-path ELS response CQ */ 4112 qp = phba->sli4_hba.els_cq; 4113 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 4114 /* Reset max counter */ 4115 if (qp) 4116 qp->CQ_max_cqe = 0; 4117 if (len >= max_cnt) 4118 goto too_big; 4119 4120 /* Slow-path ELS WQ */ 4121 qp = phba->sli4_hba.els_wq; 4122 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 4123 if (len >= max_cnt) 4124 goto too_big; 4125 4126 qp = phba->sli4_hba.hdr_rq; 4127 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 4128 "ELS RQpair", pbuffer, len); 4129 if (len >= max_cnt) 4130 goto too_big; 4131 4132 /* Slow-path NVME LS response CQ */ 4133 qp = phba->sli4_hba.nvmels_cq; 4134 len = __lpfc_idiag_print_cq(qp, "NVME LS", 4135 pbuffer, len); 4136 /* Reset max counter */ 4137 if (qp) 4138 qp->CQ_max_cqe = 0; 4139 if (len >= max_cnt) 4140 goto too_big; 4141 4142 /* Slow-path NVME LS WQ */ 4143 qp = phba->sli4_hba.nvmels_wq; 4144 len = __lpfc_idiag_print_wq(qp, "NVME LS", 4145 pbuffer, len); 4146 if (len >= max_cnt) 4147 goto too_big; 4148 4149 goto out; 4150 } 4151 4152 spin_unlock_irq(&phba->hbalock); 4153 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4154 4155 too_big: 4156 len += scnprintf(pbuffer + len, 4157 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 4158 out: 4159 spin_unlock_irq(&phba->hbalock); 4160 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4161 } 4162 4163 /** 4164 * lpfc_idiag_que_param_check - queue access command parameter sanity check 4165 * @q: The pointer to queue structure. 4166 * @index: The index into a queue entry. 4167 * @count: The number of queue entries to access. 4168 * 4169 * Description: 4170 * The routine performs sanity check on device queue access method commands. 4171 * 4172 * Returns: 4173 * This function returns -EINVAL when fails the sanity check, otherwise, it 4174 * returns 0. 4175 **/ 4176 static int 4177 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 4178 { 4179 /* Only support single entry read or browsing */ 4180 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 4181 return -EINVAL; 4182 if (index > q->entry_count - 1) 4183 return -EINVAL; 4184 return 0; 4185 } 4186 4187 /** 4188 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 4189 * @pbuffer: The pointer to buffer to copy the read data into. 4190 * @pque: The pointer to the queue to be read. 4191 * @index: The index into the queue entry. 4192 * 4193 * Description: 4194 * This routine reads out a single entry from the given queue's index location 4195 * and copies it into the buffer provided. 4196 * 4197 * Returns: 4198 * This function returns 0 when it fails, otherwise, it returns the length of 4199 * the data read into the buffer provided. 4200 **/ 4201 static int 4202 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 4203 uint32_t index) 4204 { 4205 int offset, esize; 4206 uint32_t *pentry; 4207 4208 if (!pbuffer || !pque) 4209 return 0; 4210 4211 esize = pque->entry_size; 4212 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4213 "QE-INDEX[%04d]:\n", index); 4214 4215 offset = 0; 4216 pentry = lpfc_sli4_qe(pque, index); 4217 while (esize > 0) { 4218 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4219 "%08x ", *pentry); 4220 pentry++; 4221 offset += sizeof(uint32_t); 4222 esize -= sizeof(uint32_t); 4223 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 4224 len += scnprintf(pbuffer+len, 4225 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4226 } 4227 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4228 4229 return len; 4230 } 4231 4232 /** 4233 * lpfc_idiag_queacc_read - idiag debugfs read port queue 4234 * @file: The file pointer to read from. 4235 * @buf: The buffer to copy the data to. 4236 * @nbytes: The number of bytes to read. 4237 * @ppos: The position in the file to start reading from. 4238 * 4239 * Description: 4240 * This routine reads data from the @phba device queue memory according to the 4241 * idiag command, and copies to user @buf. Depending on the queue dump read 4242 * command setup, it does either a single queue entry read or browing through 4243 * all entries of the queue. 4244 * 4245 * Returns: 4246 * This function returns the amount of data that was read (this could be less 4247 * than @nbytes if the end of the file was reached) or a negative error value. 4248 **/ 4249 static ssize_t 4250 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 4251 loff_t *ppos) 4252 { 4253 struct lpfc_debug *debug = file->private_data; 4254 uint32_t last_index, index, count; 4255 struct lpfc_queue *pque = NULL; 4256 char *pbuffer; 4257 int len = 0; 4258 4259 /* This is a user read operation */ 4260 debug->op = LPFC_IDIAG_OP_RD; 4261 4262 if (!debug->buffer) 4263 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 4264 if (!debug->buffer) 4265 return 0; 4266 pbuffer = debug->buffer; 4267 4268 if (*ppos) 4269 return 0; 4270 4271 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4272 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4273 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4274 pque = (struct lpfc_queue *)idiag.ptr_private; 4275 } else 4276 return 0; 4277 4278 /* Browse the queue starting from index */ 4279 if (count == LPFC_QUE_ACC_BROWSE) 4280 goto que_browse; 4281 4282 /* Read a single entry from the queue */ 4283 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4284 4285 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4286 4287 que_browse: 4288 4289 /* Browse all entries from the queue */ 4290 last_index = idiag.offset.last_rd; 4291 index = last_index; 4292 4293 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 4294 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4295 index++; 4296 if (index > pque->entry_count - 1) 4297 break; 4298 } 4299 4300 /* Set up the offset for next portion of pci cfg read */ 4301 if (index > pque->entry_count - 1) 4302 index = 0; 4303 idiag.offset.last_rd = index; 4304 4305 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4306 } 4307 4308 /** 4309 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 4310 * @file: The file pointer to read from. 4311 * @buf: The buffer to copy the user data from. 4312 * @nbytes: The number of bytes to get. 4313 * @ppos: The position in the file to start reading from. 4314 * 4315 * This routine get the debugfs idiag command struct from user space and then 4316 * perform the syntax check for port queue read (dump) or write (set) command 4317 * accordingly. In the case of port queue read command, it sets up the command 4318 * in the idiag command struct for the following debugfs read operation. In 4319 * the case of port queue write operation, it executes the write operation 4320 * into the port queue entry accordingly. 4321 * 4322 * It returns the @nbytges passing in from debugfs user space when successful. 4323 * In case of error conditions, it returns proper error code back to the user 4324 * space. 4325 **/ 4326 static ssize_t 4327 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 4328 size_t nbytes, loff_t *ppos) 4329 { 4330 struct lpfc_debug *debug = file->private_data; 4331 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4332 uint32_t qidx, quetp, queid, index, count, offset, value; 4333 uint32_t *pentry; 4334 struct lpfc_queue *pque, *qp; 4335 int rc; 4336 4337 /* This is a user write operation */ 4338 debug->op = LPFC_IDIAG_OP_WR; 4339 4340 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4341 if (rc < 0) 4342 return rc; 4343 4344 /* Get and sanity check on command feilds */ 4345 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 4346 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 4347 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4348 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4349 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 4350 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 4351 4352 /* Sanity check on command line arguments */ 4353 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4354 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4355 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4356 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 4357 goto error_out; 4358 if (count != 1) 4359 goto error_out; 4360 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4361 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 4362 goto error_out; 4363 } else 4364 goto error_out; 4365 4366 switch (quetp) { 4367 case LPFC_IDIAG_EQ: 4368 /* HBA event queue */ 4369 if (phba->sli4_hba.hdwq) { 4370 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4371 qp = phba->sli4_hba.hdwq[qidx].hba_eq; 4372 if (qp && qp->queue_id == queid) { 4373 /* Sanity check */ 4374 rc = lpfc_idiag_que_param_check(qp, 4375 index, count); 4376 if (rc) 4377 goto error_out; 4378 idiag.ptr_private = qp; 4379 goto pass_check; 4380 } 4381 } 4382 } 4383 goto error_out; 4384 break; 4385 case LPFC_IDIAG_CQ: 4386 /* MBX complete queue */ 4387 if (phba->sli4_hba.mbx_cq && 4388 phba->sli4_hba.mbx_cq->queue_id == queid) { 4389 /* Sanity check */ 4390 rc = lpfc_idiag_que_param_check( 4391 phba->sli4_hba.mbx_cq, index, count); 4392 if (rc) 4393 goto error_out; 4394 idiag.ptr_private = phba->sli4_hba.mbx_cq; 4395 goto pass_check; 4396 } 4397 /* ELS complete queue */ 4398 if (phba->sli4_hba.els_cq && 4399 phba->sli4_hba.els_cq->queue_id == queid) { 4400 /* Sanity check */ 4401 rc = lpfc_idiag_que_param_check( 4402 phba->sli4_hba.els_cq, index, count); 4403 if (rc) 4404 goto error_out; 4405 idiag.ptr_private = phba->sli4_hba.els_cq; 4406 goto pass_check; 4407 } 4408 /* NVME LS complete queue */ 4409 if (phba->sli4_hba.nvmels_cq && 4410 phba->sli4_hba.nvmels_cq->queue_id == queid) { 4411 /* Sanity check */ 4412 rc = lpfc_idiag_que_param_check( 4413 phba->sli4_hba.nvmels_cq, index, count); 4414 if (rc) 4415 goto error_out; 4416 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 4417 goto pass_check; 4418 } 4419 /* FCP complete queue */ 4420 if (phba->sli4_hba.hdwq) { 4421 for (qidx = 0; qidx < phba->cfg_hdw_queue; 4422 qidx++) { 4423 qp = phba->sli4_hba.hdwq[qidx].io_cq; 4424 if (qp && qp->queue_id == queid) { 4425 /* Sanity check */ 4426 rc = lpfc_idiag_que_param_check( 4427 qp, index, count); 4428 if (rc) 4429 goto error_out; 4430 idiag.ptr_private = qp; 4431 goto pass_check; 4432 } 4433 } 4434 } 4435 goto error_out; 4436 break; 4437 case LPFC_IDIAG_MQ: 4438 /* MBX work queue */ 4439 if (phba->sli4_hba.mbx_wq && 4440 phba->sli4_hba.mbx_wq->queue_id == queid) { 4441 /* Sanity check */ 4442 rc = lpfc_idiag_que_param_check( 4443 phba->sli4_hba.mbx_wq, index, count); 4444 if (rc) 4445 goto error_out; 4446 idiag.ptr_private = phba->sli4_hba.mbx_wq; 4447 goto pass_check; 4448 } 4449 goto error_out; 4450 break; 4451 case LPFC_IDIAG_WQ: 4452 /* ELS work queue */ 4453 if (phba->sli4_hba.els_wq && 4454 phba->sli4_hba.els_wq->queue_id == queid) { 4455 /* Sanity check */ 4456 rc = lpfc_idiag_que_param_check( 4457 phba->sli4_hba.els_wq, index, count); 4458 if (rc) 4459 goto error_out; 4460 idiag.ptr_private = phba->sli4_hba.els_wq; 4461 goto pass_check; 4462 } 4463 /* NVME LS work queue */ 4464 if (phba->sli4_hba.nvmels_wq && 4465 phba->sli4_hba.nvmels_wq->queue_id == queid) { 4466 /* Sanity check */ 4467 rc = lpfc_idiag_que_param_check( 4468 phba->sli4_hba.nvmels_wq, index, count); 4469 if (rc) 4470 goto error_out; 4471 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 4472 goto pass_check; 4473 } 4474 4475 if (phba->sli4_hba.hdwq) { 4476 /* FCP/SCSI work queue */ 4477 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4478 qp = phba->sli4_hba.hdwq[qidx].io_wq; 4479 if (qp && qp->queue_id == queid) { 4480 /* Sanity check */ 4481 rc = lpfc_idiag_que_param_check( 4482 qp, index, count); 4483 if (rc) 4484 goto error_out; 4485 idiag.ptr_private = qp; 4486 goto pass_check; 4487 } 4488 } 4489 } 4490 4491 goto error_out; 4492 break; 4493 case LPFC_IDIAG_RQ: 4494 /* HDR queue */ 4495 if (phba->sli4_hba.hdr_rq && 4496 phba->sli4_hba.hdr_rq->queue_id == queid) { 4497 /* Sanity check */ 4498 rc = lpfc_idiag_que_param_check( 4499 phba->sli4_hba.hdr_rq, index, count); 4500 if (rc) 4501 goto error_out; 4502 idiag.ptr_private = phba->sli4_hba.hdr_rq; 4503 goto pass_check; 4504 } 4505 /* DAT queue */ 4506 if (phba->sli4_hba.dat_rq && 4507 phba->sli4_hba.dat_rq->queue_id == queid) { 4508 /* Sanity check */ 4509 rc = lpfc_idiag_que_param_check( 4510 phba->sli4_hba.dat_rq, index, count); 4511 if (rc) 4512 goto error_out; 4513 idiag.ptr_private = phba->sli4_hba.dat_rq; 4514 goto pass_check; 4515 } 4516 goto error_out; 4517 break; 4518 default: 4519 goto error_out; 4520 break; 4521 } 4522 4523 pass_check: 4524 4525 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4526 if (count == LPFC_QUE_ACC_BROWSE) 4527 idiag.offset.last_rd = index; 4528 } 4529 4530 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4531 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4532 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4533 /* Additional sanity checks on write operation */ 4534 pque = (struct lpfc_queue *)idiag.ptr_private; 4535 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 4536 goto error_out; 4537 pentry = lpfc_sli4_qe(pque, index); 4538 pentry += offset; 4539 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 4540 *pentry = value; 4541 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 4542 *pentry |= value; 4543 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 4544 *pentry &= ~value; 4545 } 4546 return nbytes; 4547 4548 error_out: 4549 /* Clean out command structure on command error out */ 4550 memset(&idiag, 0, sizeof(idiag)); 4551 return -EINVAL; 4552 } 4553 4554 /** 4555 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 4556 * @phba: The pointer to hba structure. 4557 * @pbuffer: The pointer to the buffer to copy the data to. 4558 * @len: The length of bytes to copied. 4559 * @drbregid: The id to doorbell registers. 4560 * 4561 * Description: 4562 * This routine reads a doorbell register and copies its content to the 4563 * user buffer pointed to by @pbuffer. 4564 * 4565 * Returns: 4566 * This function returns the amount of data that was copied into @pbuffer. 4567 **/ 4568 static int 4569 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4570 int len, uint32_t drbregid) 4571 { 4572 4573 if (!pbuffer) 4574 return 0; 4575 4576 switch (drbregid) { 4577 case LPFC_DRB_EQ: 4578 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len, 4579 "EQ-DRB-REG: 0x%08x\n", 4580 readl(phba->sli4_hba.EQDBregaddr)); 4581 break; 4582 case LPFC_DRB_CQ: 4583 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len, 4584 "CQ-DRB-REG: 0x%08x\n", 4585 readl(phba->sli4_hba.CQDBregaddr)); 4586 break; 4587 case LPFC_DRB_MQ: 4588 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4589 "MQ-DRB-REG: 0x%08x\n", 4590 readl(phba->sli4_hba.MQDBregaddr)); 4591 break; 4592 case LPFC_DRB_WQ: 4593 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4594 "WQ-DRB-REG: 0x%08x\n", 4595 readl(phba->sli4_hba.WQDBregaddr)); 4596 break; 4597 case LPFC_DRB_RQ: 4598 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4599 "RQ-DRB-REG: 0x%08x\n", 4600 readl(phba->sli4_hba.RQDBregaddr)); 4601 break; 4602 default: 4603 break; 4604 } 4605 4606 return len; 4607 } 4608 4609 /** 4610 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 4611 * @file: The file pointer to read from. 4612 * @buf: The buffer to copy the data to. 4613 * @nbytes: The number of bytes to read. 4614 * @ppos: The position in the file to start reading from. 4615 * 4616 * Description: 4617 * This routine reads data from the @phba device doorbell register according 4618 * to the idiag command, and copies to user @buf. Depending on the doorbell 4619 * register read command setup, it does either a single doorbell register 4620 * read or dump all doorbell registers. 4621 * 4622 * Returns: 4623 * This function returns the amount of data that was read (this could be less 4624 * than @nbytes if the end of the file was reached) or a negative error value. 4625 **/ 4626 static ssize_t 4627 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 4628 loff_t *ppos) 4629 { 4630 struct lpfc_debug *debug = file->private_data; 4631 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4632 uint32_t drb_reg_id, i; 4633 char *pbuffer; 4634 int len = 0; 4635 4636 /* This is a user read operation */ 4637 debug->op = LPFC_IDIAG_OP_RD; 4638 4639 if (!debug->buffer) 4640 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 4641 if (!debug->buffer) 4642 return 0; 4643 pbuffer = debug->buffer; 4644 4645 if (*ppos) 4646 return 0; 4647 4648 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 4649 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4650 else 4651 return 0; 4652 4653 if (drb_reg_id == LPFC_DRB_ACC_ALL) 4654 for (i = 1; i <= LPFC_DRB_MAX; i++) 4655 len = lpfc_idiag_drbacc_read_reg(phba, 4656 pbuffer, len, i); 4657 else 4658 len = lpfc_idiag_drbacc_read_reg(phba, 4659 pbuffer, len, drb_reg_id); 4660 4661 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4662 } 4663 4664 /** 4665 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 4666 * @file: The file pointer to read from. 4667 * @buf: The buffer to copy the user data from. 4668 * @nbytes: The number of bytes to get. 4669 * @ppos: The position in the file to start reading from. 4670 * 4671 * This routine get the debugfs idiag command struct from user space and then 4672 * perform the syntax check for port doorbell register read (dump) or write 4673 * (set) command accordingly. In the case of port queue read command, it sets 4674 * up the command in the idiag command struct for the following debugfs read 4675 * operation. In the case of port doorbell register write operation, it 4676 * executes the write operation into the port doorbell register accordingly. 4677 * 4678 * It returns the @nbytges passing in from debugfs user space when successful. 4679 * In case of error conditions, it returns proper error code back to the user 4680 * space. 4681 **/ 4682 static ssize_t 4683 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 4684 size_t nbytes, loff_t *ppos) 4685 { 4686 struct lpfc_debug *debug = file->private_data; 4687 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4688 uint32_t drb_reg_id, value, reg_val = 0; 4689 void __iomem *drb_reg; 4690 int rc; 4691 4692 /* This is a user write operation */ 4693 debug->op = LPFC_IDIAG_OP_WR; 4694 4695 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4696 if (rc < 0) 4697 return rc; 4698 4699 /* Sanity check on command line arguments */ 4700 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4701 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4702 4703 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4704 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4705 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4706 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4707 goto error_out; 4708 if (drb_reg_id > LPFC_DRB_MAX) 4709 goto error_out; 4710 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4711 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4712 goto error_out; 4713 if ((drb_reg_id > LPFC_DRB_MAX) && 4714 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4715 goto error_out; 4716 } else 4717 goto error_out; 4718 4719 /* Perform the write access operation */ 4720 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4721 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4722 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4723 switch (drb_reg_id) { 4724 case LPFC_DRB_EQ: 4725 drb_reg = phba->sli4_hba.EQDBregaddr; 4726 break; 4727 case LPFC_DRB_CQ: 4728 drb_reg = phba->sli4_hba.CQDBregaddr; 4729 break; 4730 case LPFC_DRB_MQ: 4731 drb_reg = phba->sli4_hba.MQDBregaddr; 4732 break; 4733 case LPFC_DRB_WQ: 4734 drb_reg = phba->sli4_hba.WQDBregaddr; 4735 break; 4736 case LPFC_DRB_RQ: 4737 drb_reg = phba->sli4_hba.RQDBregaddr; 4738 break; 4739 default: 4740 goto error_out; 4741 } 4742 4743 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4744 reg_val = value; 4745 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4746 reg_val = readl(drb_reg); 4747 reg_val |= value; 4748 } 4749 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4750 reg_val = readl(drb_reg); 4751 reg_val &= ~value; 4752 } 4753 writel(reg_val, drb_reg); 4754 readl(drb_reg); /* flush */ 4755 } 4756 return nbytes; 4757 4758 error_out: 4759 /* Clean out command structure on command error out */ 4760 memset(&idiag, 0, sizeof(idiag)); 4761 return -EINVAL; 4762 } 4763 4764 /** 4765 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4766 * @phba: The pointer to hba structure. 4767 * @pbuffer: The pointer to the buffer to copy the data to. 4768 * @len: The length of bytes to copied. 4769 * @drbregid: The id to doorbell registers. 4770 * 4771 * Description: 4772 * This routine reads a control register and copies its content to the 4773 * user buffer pointed to by @pbuffer. 4774 * 4775 * Returns: 4776 * This function returns the amount of data that was copied into @pbuffer. 4777 **/ 4778 static int 4779 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4780 int len, uint32_t ctlregid) 4781 { 4782 4783 if (!pbuffer) 4784 return 0; 4785 4786 switch (ctlregid) { 4787 case LPFC_CTL_PORT_SEM: 4788 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4789 "Port SemReg: 0x%08x\n", 4790 readl(phba->sli4_hba.conf_regs_memmap_p + 4791 LPFC_CTL_PORT_SEM_OFFSET)); 4792 break; 4793 case LPFC_CTL_PORT_STA: 4794 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4795 "Port StaReg: 0x%08x\n", 4796 readl(phba->sli4_hba.conf_regs_memmap_p + 4797 LPFC_CTL_PORT_STA_OFFSET)); 4798 break; 4799 case LPFC_CTL_PORT_CTL: 4800 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4801 "Port CtlReg: 0x%08x\n", 4802 readl(phba->sli4_hba.conf_regs_memmap_p + 4803 LPFC_CTL_PORT_CTL_OFFSET)); 4804 break; 4805 case LPFC_CTL_PORT_ER1: 4806 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4807 "Port Er1Reg: 0x%08x\n", 4808 readl(phba->sli4_hba.conf_regs_memmap_p + 4809 LPFC_CTL_PORT_ER1_OFFSET)); 4810 break; 4811 case LPFC_CTL_PORT_ER2: 4812 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4813 "Port Er2Reg: 0x%08x\n", 4814 readl(phba->sli4_hba.conf_regs_memmap_p + 4815 LPFC_CTL_PORT_ER2_OFFSET)); 4816 break; 4817 case LPFC_CTL_PDEV_CTL: 4818 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4819 "PDev CtlReg: 0x%08x\n", 4820 readl(phba->sli4_hba.conf_regs_memmap_p + 4821 LPFC_CTL_PDEV_CTL_OFFSET)); 4822 break; 4823 default: 4824 break; 4825 } 4826 return len; 4827 } 4828 4829 /** 4830 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4831 * @file: The file pointer to read from. 4832 * @buf: The buffer to copy the data to. 4833 * @nbytes: The number of bytes to read. 4834 * @ppos: The position in the file to start reading from. 4835 * 4836 * Description: 4837 * This routine reads data from the @phba port and device registers according 4838 * to the idiag command, and copies to user @buf. 4839 * 4840 * Returns: 4841 * This function returns the amount of data that was read (this could be less 4842 * than @nbytes if the end of the file was reached) or a negative error value. 4843 **/ 4844 static ssize_t 4845 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4846 loff_t *ppos) 4847 { 4848 struct lpfc_debug *debug = file->private_data; 4849 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4850 uint32_t ctl_reg_id, i; 4851 char *pbuffer; 4852 int len = 0; 4853 4854 /* This is a user read operation */ 4855 debug->op = LPFC_IDIAG_OP_RD; 4856 4857 if (!debug->buffer) 4858 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4859 if (!debug->buffer) 4860 return 0; 4861 pbuffer = debug->buffer; 4862 4863 if (*ppos) 4864 return 0; 4865 4866 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4867 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4868 else 4869 return 0; 4870 4871 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4872 for (i = 1; i <= LPFC_CTL_MAX; i++) 4873 len = lpfc_idiag_ctlacc_read_reg(phba, 4874 pbuffer, len, i); 4875 else 4876 len = lpfc_idiag_ctlacc_read_reg(phba, 4877 pbuffer, len, ctl_reg_id); 4878 4879 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4880 } 4881 4882 /** 4883 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4884 * @file: The file pointer to read from. 4885 * @buf: The buffer to copy the user data from. 4886 * @nbytes: The number of bytes to get. 4887 * @ppos: The position in the file to start reading from. 4888 * 4889 * This routine get the debugfs idiag command struct from user space and then 4890 * perform the syntax check for port and device control register read (dump) 4891 * or write (set) command accordingly. 4892 * 4893 * It returns the @nbytges passing in from debugfs user space when successful. 4894 * In case of error conditions, it returns proper error code back to the user 4895 * space. 4896 **/ 4897 static ssize_t 4898 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4899 size_t nbytes, loff_t *ppos) 4900 { 4901 struct lpfc_debug *debug = file->private_data; 4902 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4903 uint32_t ctl_reg_id, value, reg_val = 0; 4904 void __iomem *ctl_reg; 4905 int rc; 4906 4907 /* This is a user write operation */ 4908 debug->op = LPFC_IDIAG_OP_WR; 4909 4910 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4911 if (rc < 0) 4912 return rc; 4913 4914 /* Sanity check on command line arguments */ 4915 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4916 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4917 4918 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4919 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4920 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4921 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4922 goto error_out; 4923 if (ctl_reg_id > LPFC_CTL_MAX) 4924 goto error_out; 4925 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4926 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4927 goto error_out; 4928 if ((ctl_reg_id > LPFC_CTL_MAX) && 4929 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4930 goto error_out; 4931 } else 4932 goto error_out; 4933 4934 /* Perform the write access operation */ 4935 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4936 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4937 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4938 switch (ctl_reg_id) { 4939 case LPFC_CTL_PORT_SEM: 4940 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4941 LPFC_CTL_PORT_SEM_OFFSET; 4942 break; 4943 case LPFC_CTL_PORT_STA: 4944 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4945 LPFC_CTL_PORT_STA_OFFSET; 4946 break; 4947 case LPFC_CTL_PORT_CTL: 4948 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4949 LPFC_CTL_PORT_CTL_OFFSET; 4950 break; 4951 case LPFC_CTL_PORT_ER1: 4952 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4953 LPFC_CTL_PORT_ER1_OFFSET; 4954 break; 4955 case LPFC_CTL_PORT_ER2: 4956 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4957 LPFC_CTL_PORT_ER2_OFFSET; 4958 break; 4959 case LPFC_CTL_PDEV_CTL: 4960 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4961 LPFC_CTL_PDEV_CTL_OFFSET; 4962 break; 4963 default: 4964 goto error_out; 4965 } 4966 4967 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4968 reg_val = value; 4969 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4970 reg_val = readl(ctl_reg); 4971 reg_val |= value; 4972 } 4973 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4974 reg_val = readl(ctl_reg); 4975 reg_val &= ~value; 4976 } 4977 writel(reg_val, ctl_reg); 4978 readl(ctl_reg); /* flush */ 4979 } 4980 return nbytes; 4981 4982 error_out: 4983 /* Clean out command structure on command error out */ 4984 memset(&idiag, 0, sizeof(idiag)); 4985 return -EINVAL; 4986 } 4987 4988 /** 4989 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 4990 * @phba: Pointer to HBA context object. 4991 * @pbuffer: Pointer to data buffer. 4992 * 4993 * Description: 4994 * This routine gets the driver mailbox access debugfs setup information. 4995 * 4996 * Returns: 4997 * This function returns the amount of data that was read (this could be less 4998 * than @nbytes if the end of the file was reached) or a negative error value. 4999 **/ 5000 static int 5001 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 5002 { 5003 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5004 int len = 0; 5005 5006 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5007 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5008 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5009 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5010 5011 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5012 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 5013 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5014 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 5015 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5016 "mbx_word_cnt: %04d\n", mbx_word_cnt); 5017 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5018 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 5019 5020 return len; 5021 } 5022 5023 /** 5024 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 5025 * @file: The file pointer to read from. 5026 * @buf: The buffer to copy the data to. 5027 * @nbytes: The number of bytes to read. 5028 * @ppos: The position in the file to start reading from. 5029 * 5030 * Description: 5031 * This routine reads data from the @phba driver mailbox access debugfs setup 5032 * information. 5033 * 5034 * Returns: 5035 * This function returns the amount of data that was read (this could be less 5036 * than @nbytes if the end of the file was reached) or a negative error value. 5037 **/ 5038 static ssize_t 5039 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 5040 loff_t *ppos) 5041 { 5042 struct lpfc_debug *debug = file->private_data; 5043 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5044 char *pbuffer; 5045 int len = 0; 5046 5047 /* This is a user read operation */ 5048 debug->op = LPFC_IDIAG_OP_RD; 5049 5050 if (!debug->buffer) 5051 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 5052 if (!debug->buffer) 5053 return 0; 5054 pbuffer = debug->buffer; 5055 5056 if (*ppos) 5057 return 0; 5058 5059 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 5060 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 5061 return 0; 5062 5063 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 5064 5065 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5066 } 5067 5068 /** 5069 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 5070 * @file: The file pointer to read from. 5071 * @buf: The buffer to copy the user data from. 5072 * @nbytes: The number of bytes to get. 5073 * @ppos: The position in the file to start reading from. 5074 * 5075 * This routine get the debugfs idiag command struct from user space and then 5076 * perform the syntax check for driver mailbox command (dump) and sets up the 5077 * necessary states in the idiag command struct accordingly. 5078 * 5079 * It returns the @nbytges passing in from debugfs user space when successful. 5080 * In case of error conditions, it returns proper error code back to the user 5081 * space. 5082 **/ 5083 static ssize_t 5084 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 5085 size_t nbytes, loff_t *ppos) 5086 { 5087 struct lpfc_debug *debug = file->private_data; 5088 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5089 int rc; 5090 5091 /* This is a user write operation */ 5092 debug->op = LPFC_IDIAG_OP_WR; 5093 5094 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5095 if (rc < 0) 5096 return rc; 5097 5098 /* Sanity check on command line arguments */ 5099 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5100 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5101 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5102 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5103 5104 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 5105 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 5106 goto error_out; 5107 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 5108 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5109 goto error_out; 5110 if (mbx_word_cnt > sizeof(MAILBOX_t)) 5111 goto error_out; 5112 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 5113 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 5114 goto error_out; 5115 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 5116 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5117 goto error_out; 5118 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 5119 goto error_out; 5120 if (mbx_mbox_cmd != 0x9b) 5121 goto error_out; 5122 } else 5123 goto error_out; 5124 5125 if (mbx_word_cnt == 0) 5126 goto error_out; 5127 if (rc != LPFC_MBX_DMP_ARG) 5128 goto error_out; 5129 if (mbx_mbox_cmd & ~0xff) 5130 goto error_out; 5131 5132 /* condition for stop mailbox dump */ 5133 if (mbx_dump_cnt == 0) 5134 goto reset_out; 5135 5136 return nbytes; 5137 5138 reset_out: 5139 /* Clean out command structure on command error out */ 5140 memset(&idiag, 0, sizeof(idiag)); 5141 return nbytes; 5142 5143 error_out: 5144 /* Clean out command structure on command error out */ 5145 memset(&idiag, 0, sizeof(idiag)); 5146 return -EINVAL; 5147 } 5148 5149 /** 5150 * lpfc_idiag_extacc_avail_get - get the available extents information 5151 * @phba: pointer to lpfc hba data structure. 5152 * @pbuffer: pointer to internal buffer. 5153 * @len: length into the internal buffer data has been copied. 5154 * 5155 * Description: 5156 * This routine is to get the available extent information. 5157 * 5158 * Returns: 5159 * overall lenth of the data read into the internal buffer. 5160 **/ 5161 static int 5162 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 5163 { 5164 uint16_t ext_cnt, ext_size; 5165 5166 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5167 "\nAvailable Extents Information:\n"); 5168 5169 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5170 "\tPort Available VPI extents: "); 5171 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 5172 &ext_cnt, &ext_size); 5173 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5174 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5175 5176 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5177 "\tPort Available VFI extents: "); 5178 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 5179 &ext_cnt, &ext_size); 5180 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5181 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5182 5183 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5184 "\tPort Available RPI extents: "); 5185 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 5186 &ext_cnt, &ext_size); 5187 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5188 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5189 5190 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5191 "\tPort Available XRI extents: "); 5192 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 5193 &ext_cnt, &ext_size); 5194 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5195 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5196 5197 return len; 5198 } 5199 5200 /** 5201 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 5202 * @phba: pointer to lpfc hba data structure. 5203 * @pbuffer: pointer to internal buffer. 5204 * @len: length into the internal buffer data has been copied. 5205 * 5206 * Description: 5207 * This routine is to get the allocated extent information. 5208 * 5209 * Returns: 5210 * overall lenth of the data read into the internal buffer. 5211 **/ 5212 static int 5213 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 5214 { 5215 uint16_t ext_cnt, ext_size; 5216 int rc; 5217 5218 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5219 "\nAllocated Extents Information:\n"); 5220 5221 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5222 "\tHost Allocated VPI extents: "); 5223 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 5224 &ext_cnt, &ext_size); 5225 if (!rc) 5226 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5227 "Port %d Extent %3d, Size %3d\n", 5228 phba->brd_no, ext_cnt, ext_size); 5229 else 5230 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5231 "N/A\n"); 5232 5233 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5234 "\tHost Allocated VFI extents: "); 5235 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 5236 &ext_cnt, &ext_size); 5237 if (!rc) 5238 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5239 "Port %d Extent %3d, Size %3d\n", 5240 phba->brd_no, ext_cnt, ext_size); 5241 else 5242 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5243 "N/A\n"); 5244 5245 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5246 "\tHost Allocated RPI extents: "); 5247 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 5248 &ext_cnt, &ext_size); 5249 if (!rc) 5250 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5251 "Port %d Extent %3d, Size %3d\n", 5252 phba->brd_no, ext_cnt, ext_size); 5253 else 5254 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5255 "N/A\n"); 5256 5257 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5258 "\tHost Allocated XRI extents: "); 5259 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 5260 &ext_cnt, &ext_size); 5261 if (!rc) 5262 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5263 "Port %d Extent %3d, Size %3d\n", 5264 phba->brd_no, ext_cnt, ext_size); 5265 else 5266 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5267 "N/A\n"); 5268 5269 return len; 5270 } 5271 5272 /** 5273 * lpfc_idiag_extacc_drivr_get - get driver extent information 5274 * @phba: pointer to lpfc hba data structure. 5275 * @pbuffer: pointer to internal buffer. 5276 * @len: length into the internal buffer data has been copied. 5277 * 5278 * Description: 5279 * This routine is to get the driver extent information. 5280 * 5281 * Returns: 5282 * overall lenth of the data read into the internal buffer. 5283 **/ 5284 static int 5285 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 5286 { 5287 struct lpfc_rsrc_blks *rsrc_blks; 5288 int index; 5289 5290 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5291 "\nDriver Extents Information:\n"); 5292 5293 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5294 "\tVPI extents:\n"); 5295 index = 0; 5296 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 5297 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5298 "\t\tBlock %3d: Start %4d, Count %4d\n", 5299 index, rsrc_blks->rsrc_start, 5300 rsrc_blks->rsrc_size); 5301 index++; 5302 } 5303 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5304 "\tVFI extents:\n"); 5305 index = 0; 5306 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 5307 list) { 5308 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5309 "\t\tBlock %3d: Start %4d, Count %4d\n", 5310 index, rsrc_blks->rsrc_start, 5311 rsrc_blks->rsrc_size); 5312 index++; 5313 } 5314 5315 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5316 "\tRPI extents:\n"); 5317 index = 0; 5318 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 5319 list) { 5320 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5321 "\t\tBlock %3d: Start %4d, Count %4d\n", 5322 index, rsrc_blks->rsrc_start, 5323 rsrc_blks->rsrc_size); 5324 index++; 5325 } 5326 5327 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5328 "\tXRI extents:\n"); 5329 index = 0; 5330 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 5331 list) { 5332 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5333 "\t\tBlock %3d: Start %4d, Count %4d\n", 5334 index, rsrc_blks->rsrc_start, 5335 rsrc_blks->rsrc_size); 5336 index++; 5337 } 5338 5339 return len; 5340 } 5341 5342 /** 5343 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 5344 * @file: The file pointer to read from. 5345 * @buf: The buffer to copy the user data from. 5346 * @nbytes: The number of bytes to get. 5347 * @ppos: The position in the file to start reading from. 5348 * 5349 * This routine get the debugfs idiag command struct from user space and then 5350 * perform the syntax check for extent information access commands and sets 5351 * up the necessary states in the idiag command struct accordingly. 5352 * 5353 * It returns the @nbytges passing in from debugfs user space when successful. 5354 * In case of error conditions, it returns proper error code back to the user 5355 * space. 5356 **/ 5357 static ssize_t 5358 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 5359 size_t nbytes, loff_t *ppos) 5360 { 5361 struct lpfc_debug *debug = file->private_data; 5362 uint32_t ext_map; 5363 int rc; 5364 5365 /* This is a user write operation */ 5366 debug->op = LPFC_IDIAG_OP_WR; 5367 5368 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5369 if (rc < 0) 5370 return rc; 5371 5372 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5373 5374 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5375 goto error_out; 5376 if (rc != LPFC_EXT_ACC_CMD_ARG) 5377 goto error_out; 5378 if (!(ext_map & LPFC_EXT_ACC_ALL)) 5379 goto error_out; 5380 5381 return nbytes; 5382 error_out: 5383 /* Clean out command structure on command error out */ 5384 memset(&idiag, 0, sizeof(idiag)); 5385 return -EINVAL; 5386 } 5387 5388 /** 5389 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 5390 * @file: The file pointer to read from. 5391 * @buf: The buffer to copy the data to. 5392 * @nbytes: The number of bytes to read. 5393 * @ppos: The position in the file to start reading from. 5394 * 5395 * Description: 5396 * This routine reads data from the proper extent information according to 5397 * the idiag command, and copies to user @buf. 5398 * 5399 * Returns: 5400 * This function returns the amount of data that was read (this could be less 5401 * than @nbytes if the end of the file was reached) or a negative error value. 5402 **/ 5403 static ssize_t 5404 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 5405 loff_t *ppos) 5406 { 5407 struct lpfc_debug *debug = file->private_data; 5408 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5409 char *pbuffer; 5410 uint32_t ext_map; 5411 int len = 0; 5412 5413 /* This is a user read operation */ 5414 debug->op = LPFC_IDIAG_OP_RD; 5415 5416 if (!debug->buffer) 5417 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 5418 if (!debug->buffer) 5419 return 0; 5420 pbuffer = debug->buffer; 5421 if (*ppos) 5422 return 0; 5423 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5424 return 0; 5425 5426 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5427 if (ext_map & LPFC_EXT_ACC_AVAIL) 5428 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 5429 if (ext_map & LPFC_EXT_ACC_ALLOC) 5430 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 5431 if (ext_map & LPFC_EXT_ACC_DRIVR) 5432 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 5433 5434 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5435 } 5436 5437 #undef lpfc_debugfs_op_disc_trc 5438 static const struct file_operations lpfc_debugfs_op_disc_trc = { 5439 .owner = THIS_MODULE, 5440 .open = lpfc_debugfs_disc_trc_open, 5441 .llseek = lpfc_debugfs_lseek, 5442 .read = lpfc_debugfs_read, 5443 .release = lpfc_debugfs_release, 5444 }; 5445 5446 #undef lpfc_debugfs_op_nodelist 5447 static const struct file_operations lpfc_debugfs_op_nodelist = { 5448 .owner = THIS_MODULE, 5449 .open = lpfc_debugfs_nodelist_open, 5450 .llseek = lpfc_debugfs_lseek, 5451 .read = lpfc_debugfs_read, 5452 .release = lpfc_debugfs_release, 5453 }; 5454 5455 #undef lpfc_debugfs_op_multixripools 5456 static const struct file_operations lpfc_debugfs_op_multixripools = { 5457 .owner = THIS_MODULE, 5458 .open = lpfc_debugfs_multixripools_open, 5459 .llseek = lpfc_debugfs_lseek, 5460 .read = lpfc_debugfs_read, 5461 .write = lpfc_debugfs_multixripools_write, 5462 .release = lpfc_debugfs_release, 5463 }; 5464 5465 #undef lpfc_debugfs_op_hbqinfo 5466 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 5467 .owner = THIS_MODULE, 5468 .open = lpfc_debugfs_hbqinfo_open, 5469 .llseek = lpfc_debugfs_lseek, 5470 .read = lpfc_debugfs_read, 5471 .release = lpfc_debugfs_release, 5472 }; 5473 5474 #ifdef LPFC_HDWQ_LOCK_STAT 5475 #undef lpfc_debugfs_op_lockstat 5476 static const struct file_operations lpfc_debugfs_op_lockstat = { 5477 .owner = THIS_MODULE, 5478 .open = lpfc_debugfs_lockstat_open, 5479 .llseek = lpfc_debugfs_lseek, 5480 .read = lpfc_debugfs_read, 5481 .write = lpfc_debugfs_lockstat_write, 5482 .release = lpfc_debugfs_release, 5483 }; 5484 #endif 5485 5486 #undef lpfc_debugfs_ras_log 5487 static const struct file_operations lpfc_debugfs_ras_log = { 5488 .owner = THIS_MODULE, 5489 .open = lpfc_debugfs_ras_log_open, 5490 .llseek = lpfc_debugfs_lseek, 5491 .read = lpfc_debugfs_read, 5492 .release = lpfc_debugfs_ras_log_release, 5493 }; 5494 5495 #undef lpfc_debugfs_op_dumpHBASlim 5496 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 5497 .owner = THIS_MODULE, 5498 .open = lpfc_debugfs_dumpHBASlim_open, 5499 .llseek = lpfc_debugfs_lseek, 5500 .read = lpfc_debugfs_read, 5501 .release = lpfc_debugfs_release, 5502 }; 5503 5504 #undef lpfc_debugfs_op_dumpHostSlim 5505 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 5506 .owner = THIS_MODULE, 5507 .open = lpfc_debugfs_dumpHostSlim_open, 5508 .llseek = lpfc_debugfs_lseek, 5509 .read = lpfc_debugfs_read, 5510 .release = lpfc_debugfs_release, 5511 }; 5512 5513 #undef lpfc_debugfs_op_nvmestat 5514 static const struct file_operations lpfc_debugfs_op_nvmestat = { 5515 .owner = THIS_MODULE, 5516 .open = lpfc_debugfs_nvmestat_open, 5517 .llseek = lpfc_debugfs_lseek, 5518 .read = lpfc_debugfs_read, 5519 .write = lpfc_debugfs_nvmestat_write, 5520 .release = lpfc_debugfs_release, 5521 }; 5522 5523 #undef lpfc_debugfs_op_scsistat 5524 static const struct file_operations lpfc_debugfs_op_scsistat = { 5525 .owner = THIS_MODULE, 5526 .open = lpfc_debugfs_scsistat_open, 5527 .llseek = lpfc_debugfs_lseek, 5528 .read = lpfc_debugfs_read, 5529 .write = lpfc_debugfs_scsistat_write, 5530 .release = lpfc_debugfs_release, 5531 }; 5532 5533 #undef lpfc_debugfs_op_ioktime 5534 static const struct file_operations lpfc_debugfs_op_ioktime = { 5535 .owner = THIS_MODULE, 5536 .open = lpfc_debugfs_ioktime_open, 5537 .llseek = lpfc_debugfs_lseek, 5538 .read = lpfc_debugfs_read, 5539 .write = lpfc_debugfs_ioktime_write, 5540 .release = lpfc_debugfs_release, 5541 }; 5542 5543 #undef lpfc_debugfs_op_nvmeio_trc 5544 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 5545 .owner = THIS_MODULE, 5546 .open = lpfc_debugfs_nvmeio_trc_open, 5547 .llseek = lpfc_debugfs_lseek, 5548 .read = lpfc_debugfs_read, 5549 .write = lpfc_debugfs_nvmeio_trc_write, 5550 .release = lpfc_debugfs_release, 5551 }; 5552 5553 #undef lpfc_debugfs_op_hdwqstat 5554 static const struct file_operations lpfc_debugfs_op_hdwqstat = { 5555 .owner = THIS_MODULE, 5556 .open = lpfc_debugfs_hdwqstat_open, 5557 .llseek = lpfc_debugfs_lseek, 5558 .read = lpfc_debugfs_read, 5559 .write = lpfc_debugfs_hdwqstat_write, 5560 .release = lpfc_debugfs_release, 5561 }; 5562 5563 #undef lpfc_debugfs_op_dif_err 5564 static const struct file_operations lpfc_debugfs_op_dif_err = { 5565 .owner = THIS_MODULE, 5566 .open = simple_open, 5567 .llseek = lpfc_debugfs_lseek, 5568 .read = lpfc_debugfs_dif_err_read, 5569 .write = lpfc_debugfs_dif_err_write, 5570 .release = lpfc_debugfs_dif_err_release, 5571 }; 5572 5573 #undef lpfc_debugfs_op_slow_ring_trc 5574 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 5575 .owner = THIS_MODULE, 5576 .open = lpfc_debugfs_slow_ring_trc_open, 5577 .llseek = lpfc_debugfs_lseek, 5578 .read = lpfc_debugfs_read, 5579 .release = lpfc_debugfs_release, 5580 }; 5581 5582 static struct dentry *lpfc_debugfs_root = NULL; 5583 static atomic_t lpfc_debugfs_hba_count; 5584 5585 /* 5586 * File operations for the iDiag debugfs 5587 */ 5588 #undef lpfc_idiag_op_pciCfg 5589 static const struct file_operations lpfc_idiag_op_pciCfg = { 5590 .owner = THIS_MODULE, 5591 .open = lpfc_idiag_open, 5592 .llseek = lpfc_debugfs_lseek, 5593 .read = lpfc_idiag_pcicfg_read, 5594 .write = lpfc_idiag_pcicfg_write, 5595 .release = lpfc_idiag_cmd_release, 5596 }; 5597 5598 #undef lpfc_idiag_op_barAcc 5599 static const struct file_operations lpfc_idiag_op_barAcc = { 5600 .owner = THIS_MODULE, 5601 .open = lpfc_idiag_open, 5602 .llseek = lpfc_debugfs_lseek, 5603 .read = lpfc_idiag_baracc_read, 5604 .write = lpfc_idiag_baracc_write, 5605 .release = lpfc_idiag_cmd_release, 5606 }; 5607 5608 #undef lpfc_idiag_op_queInfo 5609 static const struct file_operations lpfc_idiag_op_queInfo = { 5610 .owner = THIS_MODULE, 5611 .open = lpfc_idiag_open, 5612 .read = lpfc_idiag_queinfo_read, 5613 .release = lpfc_idiag_release, 5614 }; 5615 5616 #undef lpfc_idiag_op_queAcc 5617 static const struct file_operations lpfc_idiag_op_queAcc = { 5618 .owner = THIS_MODULE, 5619 .open = lpfc_idiag_open, 5620 .llseek = lpfc_debugfs_lseek, 5621 .read = lpfc_idiag_queacc_read, 5622 .write = lpfc_idiag_queacc_write, 5623 .release = lpfc_idiag_cmd_release, 5624 }; 5625 5626 #undef lpfc_idiag_op_drbAcc 5627 static const struct file_operations lpfc_idiag_op_drbAcc = { 5628 .owner = THIS_MODULE, 5629 .open = lpfc_idiag_open, 5630 .llseek = lpfc_debugfs_lseek, 5631 .read = lpfc_idiag_drbacc_read, 5632 .write = lpfc_idiag_drbacc_write, 5633 .release = lpfc_idiag_cmd_release, 5634 }; 5635 5636 #undef lpfc_idiag_op_ctlAcc 5637 static const struct file_operations lpfc_idiag_op_ctlAcc = { 5638 .owner = THIS_MODULE, 5639 .open = lpfc_idiag_open, 5640 .llseek = lpfc_debugfs_lseek, 5641 .read = lpfc_idiag_ctlacc_read, 5642 .write = lpfc_idiag_ctlacc_write, 5643 .release = lpfc_idiag_cmd_release, 5644 }; 5645 5646 #undef lpfc_idiag_op_mbxAcc 5647 static const struct file_operations lpfc_idiag_op_mbxAcc = { 5648 .owner = THIS_MODULE, 5649 .open = lpfc_idiag_open, 5650 .llseek = lpfc_debugfs_lseek, 5651 .read = lpfc_idiag_mbxacc_read, 5652 .write = lpfc_idiag_mbxacc_write, 5653 .release = lpfc_idiag_cmd_release, 5654 }; 5655 5656 #undef lpfc_idiag_op_extAcc 5657 static const struct file_operations lpfc_idiag_op_extAcc = { 5658 .owner = THIS_MODULE, 5659 .open = lpfc_idiag_open, 5660 .llseek = lpfc_debugfs_lseek, 5661 .read = lpfc_idiag_extacc_read, 5662 .write = lpfc_idiag_extacc_write, 5663 .release = lpfc_idiag_cmd_release, 5664 }; 5665 #endif 5666 5667 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 5668 * @phba: Pointer to HBA context object. 5669 * @dmabuf: Pointer to a DMA buffer descriptor. 5670 * 5671 * Description: 5672 * This routine dump a bsg pass-through non-embedded mailbox command with 5673 * external buffer. 5674 **/ 5675 void 5676 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 5677 enum mbox_type mbox_tp, enum dma_type dma_tp, 5678 enum sta_type sta_tp, 5679 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 5680 { 5681 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5682 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 5683 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5684 int len = 0; 5685 uint32_t do_dump = 0; 5686 uint32_t *pword; 5687 uint32_t i; 5688 5689 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 5690 return; 5691 5692 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5693 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5694 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5695 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5696 5697 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 5698 (*mbx_dump_cnt == 0) || 5699 (*mbx_word_cnt == 0)) 5700 return; 5701 5702 if (*mbx_mbox_cmd != 0x9B) 5703 return; 5704 5705 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 5706 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 5707 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 5708 pr_err("\nRead mbox command (x%x), " 5709 "nemb:0x%x, extbuf_cnt:%d:\n", 5710 sta_tp, nemb_tp, ext_buf); 5711 } 5712 } 5713 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5714 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5715 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5716 pr_err("\nRead mbox buffer (x%x), " 5717 "nemb:0x%x, extbuf_seq:%d:\n", 5718 sta_tp, nemb_tp, ext_buf); 5719 } 5720 } 5721 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5722 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5723 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5724 pr_err("\nWrite mbox command (x%x), " 5725 "nemb:0x%x, extbuf_cnt:%d:\n", 5726 sta_tp, nemb_tp, ext_buf); 5727 } 5728 } 5729 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5730 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5731 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5732 pr_err("\nWrite mbox buffer (x%x), " 5733 "nemb:0x%x, extbuf_seq:%d:\n", 5734 sta_tp, nemb_tp, ext_buf); 5735 } 5736 } 5737 5738 /* dump buffer content */ 5739 if (do_dump) { 5740 pword = (uint32_t *)dmabuf->virt; 5741 for (i = 0; i < *mbx_word_cnt; i++) { 5742 if (!(i % 8)) { 5743 if (i != 0) 5744 pr_err("%s\n", line_buf); 5745 len = 0; 5746 len += scnprintf(line_buf+len, 5747 LPFC_MBX_ACC_LBUF_SZ-len, 5748 "%03d: ", i); 5749 } 5750 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5751 "%08x ", (uint32_t)*pword); 5752 pword++; 5753 } 5754 if ((i - 1) % 8) 5755 pr_err("%s\n", line_buf); 5756 (*mbx_dump_cnt)--; 5757 } 5758 5759 /* Clean out command structure on reaching dump count */ 5760 if (*mbx_dump_cnt == 0) 5761 memset(&idiag, 0, sizeof(idiag)); 5762 return; 5763 #endif 5764 } 5765 5766 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5767 * @phba: Pointer to HBA context object. 5768 * @dmabuf: Pointer to a DMA buffer descriptor. 5769 * 5770 * Description: 5771 * This routine dump a pass-through non-embedded mailbox command from issue 5772 * mailbox command. 5773 **/ 5774 void 5775 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5776 { 5777 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5778 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5779 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5780 int len = 0; 5781 uint32_t *pword; 5782 uint8_t *pbyte; 5783 uint32_t i, j; 5784 5785 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5786 return; 5787 5788 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5789 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5790 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5791 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5792 5793 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5794 (*mbx_dump_cnt == 0) || 5795 (*mbx_word_cnt == 0)) 5796 return; 5797 5798 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5799 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5800 return; 5801 5802 /* dump buffer content */ 5803 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 5804 pr_err("Mailbox command:0x%x dump by word:\n", 5805 pmbox->mbxCommand); 5806 pword = (uint32_t *)pmbox; 5807 for (i = 0; i < *mbx_word_cnt; i++) { 5808 if (!(i % 8)) { 5809 if (i != 0) 5810 pr_err("%s\n", line_buf); 5811 len = 0; 5812 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5813 len += scnprintf(line_buf+len, 5814 LPFC_MBX_ACC_LBUF_SZ-len, 5815 "%03d: ", i); 5816 } 5817 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5818 "%08x ", 5819 ((uint32_t)*pword) & 0xffffffff); 5820 pword++; 5821 } 5822 if ((i - 1) % 8) 5823 pr_err("%s\n", line_buf); 5824 pr_err("\n"); 5825 } 5826 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 5827 pr_err("Mailbox command:0x%x dump by byte:\n", 5828 pmbox->mbxCommand); 5829 pbyte = (uint8_t *)pmbox; 5830 for (i = 0; i < *mbx_word_cnt; i++) { 5831 if (!(i % 8)) { 5832 if (i != 0) 5833 pr_err("%s\n", line_buf); 5834 len = 0; 5835 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5836 len += scnprintf(line_buf+len, 5837 LPFC_MBX_ACC_LBUF_SZ-len, 5838 "%03d: ", i); 5839 } 5840 for (j = 0; j < 4; j++) { 5841 len += scnprintf(line_buf+len, 5842 LPFC_MBX_ACC_LBUF_SZ-len, 5843 "%02x", 5844 ((uint8_t)*pbyte) & 0xff); 5845 pbyte++; 5846 } 5847 len += scnprintf(line_buf+len, 5848 LPFC_MBX_ACC_LBUF_SZ-len, " "); 5849 } 5850 if ((i - 1) % 8) 5851 pr_err("%s\n", line_buf); 5852 pr_err("\n"); 5853 } 5854 (*mbx_dump_cnt)--; 5855 5856 /* Clean out command structure on reaching dump count */ 5857 if (*mbx_dump_cnt == 0) 5858 memset(&idiag, 0, sizeof(idiag)); 5859 return; 5860 #endif 5861 } 5862 5863 /** 5864 * lpfc_debugfs_initialize - Initialize debugfs for a vport 5865 * @vport: The vport pointer to initialize. 5866 * 5867 * Description: 5868 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 5869 * If not already created, this routine will create the lpfc directory, and 5870 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 5871 * also create each file used to access lpfc specific debugfs information. 5872 **/ 5873 inline void 5874 lpfc_debugfs_initialize(struct lpfc_vport *vport) 5875 { 5876 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5877 struct lpfc_hba *phba = vport->phba; 5878 char name[64]; 5879 uint32_t num, i; 5880 bool pport_setup = false; 5881 5882 if (!lpfc_debugfs_enable) 5883 return; 5884 5885 /* Setup lpfc root directory */ 5886 if (!lpfc_debugfs_root) { 5887 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 5888 atomic_set(&lpfc_debugfs_hba_count, 0); 5889 } 5890 if (!lpfc_debugfs_start_time) 5891 lpfc_debugfs_start_time = jiffies; 5892 5893 /* Setup funcX directory for specific HBA PCI function */ 5894 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 5895 if (!phba->hba_debugfs_root) { 5896 pport_setup = true; 5897 phba->hba_debugfs_root = 5898 debugfs_create_dir(name, lpfc_debugfs_root); 5899 atomic_inc(&lpfc_debugfs_hba_count); 5900 atomic_set(&phba->debugfs_vport_count, 0); 5901 5902 /* Multi-XRI pools */ 5903 snprintf(name, sizeof(name), "multixripools"); 5904 phba->debug_multixri_pools = 5905 debugfs_create_file(name, S_IFREG | 0644, 5906 phba->hba_debugfs_root, 5907 phba, 5908 &lpfc_debugfs_op_multixripools); 5909 if (!phba->debug_multixri_pools) { 5910 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5911 "0527 Cannot create debugfs multixripools\n"); 5912 goto debug_failed; 5913 } 5914 5915 /* RAS log */ 5916 snprintf(name, sizeof(name), "ras_log"); 5917 phba->debug_ras_log = 5918 debugfs_create_file(name, 0644, 5919 phba->hba_debugfs_root, 5920 phba, &lpfc_debugfs_ras_log); 5921 if (!phba->debug_ras_log) { 5922 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5923 "6148 Cannot create debugfs" 5924 " ras_log\n"); 5925 goto debug_failed; 5926 } 5927 5928 /* Setup hbqinfo */ 5929 snprintf(name, sizeof(name), "hbqinfo"); 5930 phba->debug_hbqinfo = 5931 debugfs_create_file(name, S_IFREG | 0644, 5932 phba->hba_debugfs_root, 5933 phba, &lpfc_debugfs_op_hbqinfo); 5934 5935 #ifdef LPFC_HDWQ_LOCK_STAT 5936 /* Setup lockstat */ 5937 snprintf(name, sizeof(name), "lockstat"); 5938 phba->debug_lockstat = 5939 debugfs_create_file(name, S_IFREG | 0644, 5940 phba->hba_debugfs_root, 5941 phba, &lpfc_debugfs_op_lockstat); 5942 if (!phba->debug_lockstat) { 5943 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5944 "4610 Can't create debugfs lockstat\n"); 5945 goto debug_failed; 5946 } 5947 #endif 5948 5949 /* Setup dumpHBASlim */ 5950 if (phba->sli_rev < LPFC_SLI_REV4) { 5951 snprintf(name, sizeof(name), "dumpHBASlim"); 5952 phba->debug_dumpHBASlim = 5953 debugfs_create_file(name, 5954 S_IFREG|S_IRUGO|S_IWUSR, 5955 phba->hba_debugfs_root, 5956 phba, &lpfc_debugfs_op_dumpHBASlim); 5957 } else 5958 phba->debug_dumpHBASlim = NULL; 5959 5960 /* Setup dumpHostSlim */ 5961 if (phba->sli_rev < LPFC_SLI_REV4) { 5962 snprintf(name, sizeof(name), "dumpHostSlim"); 5963 phba->debug_dumpHostSlim = 5964 debugfs_create_file(name, 5965 S_IFREG|S_IRUGO|S_IWUSR, 5966 phba->hba_debugfs_root, 5967 phba, &lpfc_debugfs_op_dumpHostSlim); 5968 } else 5969 phba->debug_dumpHostSlim = NULL; 5970 5971 /* Setup DIF Error Injections */ 5972 snprintf(name, sizeof(name), "InjErrLBA"); 5973 phba->debug_InjErrLBA = 5974 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5975 phba->hba_debugfs_root, 5976 phba, &lpfc_debugfs_op_dif_err); 5977 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 5978 5979 snprintf(name, sizeof(name), "InjErrNPortID"); 5980 phba->debug_InjErrNPortID = 5981 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5982 phba->hba_debugfs_root, 5983 phba, &lpfc_debugfs_op_dif_err); 5984 5985 snprintf(name, sizeof(name), "InjErrWWPN"); 5986 phba->debug_InjErrWWPN = 5987 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5988 phba->hba_debugfs_root, 5989 phba, &lpfc_debugfs_op_dif_err); 5990 5991 snprintf(name, sizeof(name), "writeGuardInjErr"); 5992 phba->debug_writeGuard = 5993 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5994 phba->hba_debugfs_root, 5995 phba, &lpfc_debugfs_op_dif_err); 5996 5997 snprintf(name, sizeof(name), "writeAppInjErr"); 5998 phba->debug_writeApp = 5999 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6000 phba->hba_debugfs_root, 6001 phba, &lpfc_debugfs_op_dif_err); 6002 6003 snprintf(name, sizeof(name), "writeRefInjErr"); 6004 phba->debug_writeRef = 6005 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6006 phba->hba_debugfs_root, 6007 phba, &lpfc_debugfs_op_dif_err); 6008 6009 snprintf(name, sizeof(name), "readGuardInjErr"); 6010 phba->debug_readGuard = 6011 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6012 phba->hba_debugfs_root, 6013 phba, &lpfc_debugfs_op_dif_err); 6014 6015 snprintf(name, sizeof(name), "readAppInjErr"); 6016 phba->debug_readApp = 6017 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6018 phba->hba_debugfs_root, 6019 phba, &lpfc_debugfs_op_dif_err); 6020 6021 snprintf(name, sizeof(name), "readRefInjErr"); 6022 phba->debug_readRef = 6023 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6024 phba->hba_debugfs_root, 6025 phba, &lpfc_debugfs_op_dif_err); 6026 6027 /* Setup slow ring trace */ 6028 if (lpfc_debugfs_max_slow_ring_trc) { 6029 num = lpfc_debugfs_max_slow_ring_trc - 1; 6030 if (num & lpfc_debugfs_max_slow_ring_trc) { 6031 /* Change to be a power of 2 */ 6032 num = lpfc_debugfs_max_slow_ring_trc; 6033 i = 0; 6034 while (num > 1) { 6035 num = num >> 1; 6036 i++; 6037 } 6038 lpfc_debugfs_max_slow_ring_trc = (1 << i); 6039 pr_err("lpfc_debugfs_max_disc_trc changed to " 6040 "%d\n", lpfc_debugfs_max_disc_trc); 6041 } 6042 } 6043 6044 snprintf(name, sizeof(name), "slow_ring_trace"); 6045 phba->debug_slow_ring_trc = 6046 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6047 phba->hba_debugfs_root, 6048 phba, &lpfc_debugfs_op_slow_ring_trc); 6049 if (!phba->slow_ring_trc) { 6050 phba->slow_ring_trc = kmalloc( 6051 (sizeof(struct lpfc_debugfs_trc) * 6052 lpfc_debugfs_max_slow_ring_trc), 6053 GFP_KERNEL); 6054 if (!phba->slow_ring_trc) { 6055 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6056 "0416 Cannot create debugfs " 6057 "slow_ring buffer\n"); 6058 goto debug_failed; 6059 } 6060 atomic_set(&phba->slow_ring_trc_cnt, 0); 6061 memset(phba->slow_ring_trc, 0, 6062 (sizeof(struct lpfc_debugfs_trc) * 6063 lpfc_debugfs_max_slow_ring_trc)); 6064 } 6065 6066 snprintf(name, sizeof(name), "nvmeio_trc"); 6067 phba->debug_nvmeio_trc = 6068 debugfs_create_file(name, 0644, 6069 phba->hba_debugfs_root, 6070 phba, &lpfc_debugfs_op_nvmeio_trc); 6071 6072 atomic_set(&phba->nvmeio_trc_cnt, 0); 6073 if (lpfc_debugfs_max_nvmeio_trc) { 6074 num = lpfc_debugfs_max_nvmeio_trc - 1; 6075 if (num & lpfc_debugfs_max_disc_trc) { 6076 /* Change to be a power of 2 */ 6077 num = lpfc_debugfs_max_nvmeio_trc; 6078 i = 0; 6079 while (num > 1) { 6080 num = num >> 1; 6081 i++; 6082 } 6083 lpfc_debugfs_max_nvmeio_trc = (1 << i); 6084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6085 "0575 lpfc_debugfs_max_nvmeio_trc " 6086 "changed to %d\n", 6087 lpfc_debugfs_max_nvmeio_trc); 6088 } 6089 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 6090 6091 /* Allocate trace buffer and initialize */ 6092 phba->nvmeio_trc = kzalloc( 6093 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 6094 phba->nvmeio_trc_size), GFP_KERNEL); 6095 6096 if (!phba->nvmeio_trc) { 6097 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6098 "0576 Cannot create debugfs " 6099 "nvmeio_trc buffer\n"); 6100 goto nvmeio_off; 6101 } 6102 phba->nvmeio_trc_on = 1; 6103 phba->nvmeio_trc_output_idx = 0; 6104 phba->nvmeio_trc = NULL; 6105 } else { 6106 nvmeio_off: 6107 phba->nvmeio_trc_size = 0; 6108 phba->nvmeio_trc_on = 0; 6109 phba->nvmeio_trc_output_idx = 0; 6110 phba->nvmeio_trc = NULL; 6111 } 6112 } 6113 6114 snprintf(name, sizeof(name), "vport%d", vport->vpi); 6115 if (!vport->vport_debugfs_root) { 6116 vport->vport_debugfs_root = 6117 debugfs_create_dir(name, phba->hba_debugfs_root); 6118 atomic_inc(&phba->debugfs_vport_count); 6119 } 6120 6121 if (lpfc_debugfs_max_disc_trc) { 6122 num = lpfc_debugfs_max_disc_trc - 1; 6123 if (num & lpfc_debugfs_max_disc_trc) { 6124 /* Change to be a power of 2 */ 6125 num = lpfc_debugfs_max_disc_trc; 6126 i = 0; 6127 while (num > 1) { 6128 num = num >> 1; 6129 i++; 6130 } 6131 lpfc_debugfs_max_disc_trc = (1 << i); 6132 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n", 6133 lpfc_debugfs_max_disc_trc); 6134 } 6135 } 6136 6137 vport->disc_trc = kzalloc( 6138 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 6139 GFP_KERNEL); 6140 6141 if (!vport->disc_trc) { 6142 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6143 "0418 Cannot create debugfs disc trace " 6144 "buffer\n"); 6145 goto debug_failed; 6146 } 6147 atomic_set(&vport->disc_trc_cnt, 0); 6148 6149 snprintf(name, sizeof(name), "discovery_trace"); 6150 vport->debug_disc_trc = 6151 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6152 vport->vport_debugfs_root, 6153 vport, &lpfc_debugfs_op_disc_trc); 6154 snprintf(name, sizeof(name), "nodelist"); 6155 vport->debug_nodelist = 6156 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6157 vport->vport_debugfs_root, 6158 vport, &lpfc_debugfs_op_nodelist); 6159 6160 snprintf(name, sizeof(name), "nvmestat"); 6161 vport->debug_nvmestat = 6162 debugfs_create_file(name, 0644, 6163 vport->vport_debugfs_root, 6164 vport, &lpfc_debugfs_op_nvmestat); 6165 6166 snprintf(name, sizeof(name), "scsistat"); 6167 vport->debug_scsistat = 6168 debugfs_create_file(name, 0644, 6169 vport->vport_debugfs_root, 6170 vport, &lpfc_debugfs_op_scsistat); 6171 if (!vport->debug_scsistat) { 6172 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6173 "4611 Cannot create debugfs scsistat\n"); 6174 goto debug_failed; 6175 } 6176 6177 snprintf(name, sizeof(name), "ioktime"); 6178 vport->debug_ioktime = 6179 debugfs_create_file(name, 0644, 6180 vport->vport_debugfs_root, 6181 vport, &lpfc_debugfs_op_ioktime); 6182 if (!vport->debug_ioktime) { 6183 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6184 "0815 Cannot create debugfs ioktime\n"); 6185 goto debug_failed; 6186 } 6187 6188 snprintf(name, sizeof(name), "hdwqstat"); 6189 vport->debug_hdwqstat = 6190 debugfs_create_file(name, 0644, 6191 vport->vport_debugfs_root, 6192 vport, &lpfc_debugfs_op_hdwqstat); 6193 6194 /* 6195 * The following section is for additional directories/files for the 6196 * physical port. 6197 */ 6198 6199 if (!pport_setup) 6200 goto debug_failed; 6201 6202 /* 6203 * iDiag debugfs root entry points for SLI4 device only 6204 */ 6205 if (phba->sli_rev < LPFC_SLI_REV4) 6206 goto debug_failed; 6207 6208 snprintf(name, sizeof(name), "iDiag"); 6209 if (!phba->idiag_root) { 6210 phba->idiag_root = 6211 debugfs_create_dir(name, phba->hba_debugfs_root); 6212 /* Initialize iDiag data structure */ 6213 memset(&idiag, 0, sizeof(idiag)); 6214 } 6215 6216 /* iDiag read PCI config space */ 6217 snprintf(name, sizeof(name), "pciCfg"); 6218 if (!phba->idiag_pci_cfg) { 6219 phba->idiag_pci_cfg = 6220 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6221 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 6222 idiag.offset.last_rd = 0; 6223 } 6224 6225 /* iDiag PCI BAR access */ 6226 snprintf(name, sizeof(name), "barAcc"); 6227 if (!phba->idiag_bar_acc) { 6228 phba->idiag_bar_acc = 6229 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6230 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 6231 idiag.offset.last_rd = 0; 6232 } 6233 6234 /* iDiag get PCI function queue information */ 6235 snprintf(name, sizeof(name), "queInfo"); 6236 if (!phba->idiag_que_info) { 6237 phba->idiag_que_info = 6238 debugfs_create_file(name, S_IFREG|S_IRUGO, 6239 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 6240 } 6241 6242 /* iDiag access PCI function queue */ 6243 snprintf(name, sizeof(name), "queAcc"); 6244 if (!phba->idiag_que_acc) { 6245 phba->idiag_que_acc = 6246 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6247 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 6248 } 6249 6250 /* iDiag access PCI function doorbell registers */ 6251 snprintf(name, sizeof(name), "drbAcc"); 6252 if (!phba->idiag_drb_acc) { 6253 phba->idiag_drb_acc = 6254 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6255 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 6256 } 6257 6258 /* iDiag access PCI function control registers */ 6259 snprintf(name, sizeof(name), "ctlAcc"); 6260 if (!phba->idiag_ctl_acc) { 6261 phba->idiag_ctl_acc = 6262 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6263 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 6264 } 6265 6266 /* iDiag access mbox commands */ 6267 snprintf(name, sizeof(name), "mbxAcc"); 6268 if (!phba->idiag_mbx_acc) { 6269 phba->idiag_mbx_acc = 6270 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6271 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 6272 } 6273 6274 /* iDiag extents access commands */ 6275 if (phba->sli4_hba.extents_in_use) { 6276 snprintf(name, sizeof(name), "extAcc"); 6277 if (!phba->idiag_ext_acc) { 6278 phba->idiag_ext_acc = 6279 debugfs_create_file(name, 6280 S_IFREG|S_IRUGO|S_IWUSR, 6281 phba->idiag_root, phba, 6282 &lpfc_idiag_op_extAcc); 6283 } 6284 } 6285 6286 debug_failed: 6287 return; 6288 #endif 6289 } 6290 6291 /** 6292 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 6293 * @vport: The vport pointer to remove from debugfs. 6294 * 6295 * Description: 6296 * When Debugfs is configured this routine removes debugfs file system elements 6297 * that are specific to this vport. It also checks to see if there are any 6298 * users left for the debugfs directories associated with the HBA and driver. If 6299 * this is the last user of the HBA directory or driver directory then it will 6300 * remove those from the debugfs infrastructure as well. 6301 **/ 6302 inline void 6303 lpfc_debugfs_terminate(struct lpfc_vport *vport) 6304 { 6305 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6306 struct lpfc_hba *phba = vport->phba; 6307 6308 kfree(vport->disc_trc); 6309 vport->disc_trc = NULL; 6310 6311 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 6312 vport->debug_disc_trc = NULL; 6313 6314 debugfs_remove(vport->debug_nodelist); /* nodelist */ 6315 vport->debug_nodelist = NULL; 6316 6317 debugfs_remove(vport->debug_nvmestat); /* nvmestat */ 6318 vport->debug_nvmestat = NULL; 6319 6320 debugfs_remove(vport->debug_scsistat); /* scsistat */ 6321 vport->debug_scsistat = NULL; 6322 6323 debugfs_remove(vport->debug_ioktime); /* ioktime */ 6324 vport->debug_ioktime = NULL; 6325 6326 debugfs_remove(vport->debug_hdwqstat); /* hdwqstat */ 6327 vport->debug_hdwqstat = NULL; 6328 6329 if (vport->vport_debugfs_root) { 6330 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 6331 vport->vport_debugfs_root = NULL; 6332 atomic_dec(&phba->debugfs_vport_count); 6333 } 6334 6335 if (atomic_read(&phba->debugfs_vport_count) == 0) { 6336 6337 debugfs_remove(phba->debug_multixri_pools); /* multixripools*/ 6338 phba->debug_multixri_pools = NULL; 6339 6340 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 6341 phba->debug_hbqinfo = NULL; 6342 6343 debugfs_remove(phba->debug_ras_log); 6344 phba->debug_ras_log = NULL; 6345 6346 #ifdef LPFC_HDWQ_LOCK_STAT 6347 debugfs_remove(phba->debug_lockstat); /* lockstat */ 6348 phba->debug_lockstat = NULL; 6349 #endif 6350 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 6351 phba->debug_dumpHBASlim = NULL; 6352 6353 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 6354 phba->debug_dumpHostSlim = NULL; 6355 6356 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 6357 phba->debug_InjErrLBA = NULL; 6358 6359 debugfs_remove(phba->debug_InjErrNPortID); 6360 phba->debug_InjErrNPortID = NULL; 6361 6362 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 6363 phba->debug_InjErrWWPN = NULL; 6364 6365 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 6366 phba->debug_writeGuard = NULL; 6367 6368 debugfs_remove(phba->debug_writeApp); /* writeApp */ 6369 phba->debug_writeApp = NULL; 6370 6371 debugfs_remove(phba->debug_writeRef); /* writeRef */ 6372 phba->debug_writeRef = NULL; 6373 6374 debugfs_remove(phba->debug_readGuard); /* readGuard */ 6375 phba->debug_readGuard = NULL; 6376 6377 debugfs_remove(phba->debug_readApp); /* readApp */ 6378 phba->debug_readApp = NULL; 6379 6380 debugfs_remove(phba->debug_readRef); /* readRef */ 6381 phba->debug_readRef = NULL; 6382 6383 kfree(phba->slow_ring_trc); 6384 phba->slow_ring_trc = NULL; 6385 6386 /* slow_ring_trace */ 6387 debugfs_remove(phba->debug_slow_ring_trc); 6388 phba->debug_slow_ring_trc = NULL; 6389 6390 debugfs_remove(phba->debug_nvmeio_trc); 6391 phba->debug_nvmeio_trc = NULL; 6392 6393 kfree(phba->nvmeio_trc); 6394 phba->nvmeio_trc = NULL; 6395 6396 /* 6397 * iDiag release 6398 */ 6399 if (phba->sli_rev == LPFC_SLI_REV4) { 6400 /* iDiag extAcc */ 6401 debugfs_remove(phba->idiag_ext_acc); 6402 phba->idiag_ext_acc = NULL; 6403 6404 /* iDiag mbxAcc */ 6405 debugfs_remove(phba->idiag_mbx_acc); 6406 phba->idiag_mbx_acc = NULL; 6407 6408 /* iDiag ctlAcc */ 6409 debugfs_remove(phba->idiag_ctl_acc); 6410 phba->idiag_ctl_acc = NULL; 6411 6412 /* iDiag drbAcc */ 6413 debugfs_remove(phba->idiag_drb_acc); 6414 phba->idiag_drb_acc = NULL; 6415 6416 /* iDiag queAcc */ 6417 debugfs_remove(phba->idiag_que_acc); 6418 phba->idiag_que_acc = NULL; 6419 6420 /* iDiag queInfo */ 6421 debugfs_remove(phba->idiag_que_info); 6422 phba->idiag_que_info = NULL; 6423 6424 /* iDiag barAcc */ 6425 debugfs_remove(phba->idiag_bar_acc); 6426 phba->idiag_bar_acc = NULL; 6427 6428 /* iDiag pciCfg */ 6429 debugfs_remove(phba->idiag_pci_cfg); 6430 phba->idiag_pci_cfg = NULL; 6431 6432 /* Finally remove the iDiag debugfs root */ 6433 debugfs_remove(phba->idiag_root); 6434 phba->idiag_root = NULL; 6435 } 6436 6437 if (phba->hba_debugfs_root) { 6438 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 6439 phba->hba_debugfs_root = NULL; 6440 atomic_dec(&lpfc_debugfs_hba_count); 6441 } 6442 6443 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 6444 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 6445 lpfc_debugfs_root = NULL; 6446 } 6447 } 6448 #endif 6449 return; 6450 } 6451 6452 /* 6453 * Driver debug utility routines outside of debugfs. The debug utility 6454 * routines implemented here is intended to be used in the instrumented 6455 * debug driver for debugging host or port issues. 6456 */ 6457 6458 /** 6459 * lpfc_debug_dump_all_queues - dump all the queues with a hba 6460 * @phba: Pointer to HBA context object. 6461 * 6462 * This function dumps entries of all the queues asociated with the @phba. 6463 **/ 6464 void 6465 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 6466 { 6467 int idx; 6468 6469 /* 6470 * Dump Work Queues (WQs) 6471 */ 6472 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 6473 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 6474 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 6475 6476 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6477 lpfc_debug_dump_wq(phba, DUMP_IO, idx); 6478 6479 lpfc_debug_dump_hdr_rq(phba); 6480 lpfc_debug_dump_dat_rq(phba); 6481 /* 6482 * Dump Complete Queues (CQs) 6483 */ 6484 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 6485 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 6486 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 6487 6488 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6489 lpfc_debug_dump_cq(phba, DUMP_IO, idx); 6490 6491 /* 6492 * Dump Event Queues (EQs) 6493 */ 6494 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6495 lpfc_debug_dump_hba_eq(phba, idx); 6496 } 6497