1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2007-2015 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * * 10 * This program is free software; you can redistribute it and/or * 11 * modify it under the terms of version 2 of the GNU General * 12 * Public License as published by the Free Software Foundation. * 13 * This program is distributed in the hope that it will be useful. * 14 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 15 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 16 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 17 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 18 * TO BE LEGALLY INVALID. See the GNU General Public License for * 19 * more details, a copy of which can be found in the file COPYING * 20 * included with this package. * 21 *******************************************************************/ 22 23 #include <linux/blkdev.h> 24 #include <linux/delay.h> 25 #include <linux/module.h> 26 #include <linux/dma-mapping.h> 27 #include <linux/idr.h> 28 #include <linux/interrupt.h> 29 #include <linux/kthread.h> 30 #include <linux/slab.h> 31 #include <linux/pci.h> 32 #include <linux/spinlock.h> 33 #include <linux/ctype.h> 34 #include <linux/vmalloc.h> 35 36 #include <scsi/scsi.h> 37 #include <scsi/scsi_device.h> 38 #include <scsi/scsi_host.h> 39 #include <scsi/scsi_transport_fc.h> 40 #include <scsi/fc/fc_fs.h> 41 42 #include "lpfc_hw4.h" 43 #include "lpfc_hw.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc_nl.h" 47 #include "lpfc_disc.h" 48 #include "lpfc.h" 49 #include "lpfc_scsi.h" 50 #include "lpfc_nvme.h" 51 #include "lpfc_logmsg.h" 52 #include "lpfc_crtn.h" 53 #include "lpfc_vport.h" 54 #include "lpfc_version.h" 55 #include "lpfc_compat.h" 56 #include "lpfc_debugfs.h" 57 #include "lpfc_bsg.h" 58 59 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 60 /* 61 * debugfs interface 62 * 63 * To access this interface the user should: 64 * # mount -t debugfs none /sys/kernel/debug 65 * 66 * The lpfc debugfs directory hierarchy is: 67 * /sys/kernel/debug/lpfc/fnX/vportY 68 * where X is the lpfc hba function unique_id 69 * where Y is the vport VPI on that hba 70 * 71 * Debugging services available per vport: 72 * discovery_trace 73 * This is an ACSII readable file that contains a trace of the last 74 * lpfc_debugfs_max_disc_trc events that happened on a specific vport. 75 * See lpfc_debugfs.h for different categories of discovery events. 76 * To enable the discovery trace, the following module parameters must be set: 77 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 78 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for 79 * EACH vport. X MUST also be a power of 2. 80 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in 81 * lpfc_debugfs.h . 82 * 83 * slow_ring_trace 84 * This is an ACSII readable file that contains a trace of the last 85 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. 86 * To enable the slow ring trace, the following module parameters must be set: 87 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 88 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for 89 * the HBA. X MUST also be a power of 2. 90 */ 91 static int lpfc_debugfs_enable = 1; 92 module_param(lpfc_debugfs_enable, int, S_IRUGO); 93 MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); 94 95 /* This MUST be a power of 2 */ 96 static int lpfc_debugfs_max_disc_trc; 97 module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); 98 MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, 99 "Set debugfs discovery trace depth"); 100 101 /* This MUST be a power of 2 */ 102 static int lpfc_debugfs_max_slow_ring_trc; 103 module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); 104 MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, 105 "Set debugfs slow ring trace depth"); 106 107 /* This MUST be a power of 2 */ 108 static int lpfc_debugfs_max_nvmeio_trc; 109 module_param(lpfc_debugfs_max_nvmeio_trc, int, 0444); 110 MODULE_PARM_DESC(lpfc_debugfs_max_nvmeio_trc, 111 "Set debugfs NVME IO trace depth"); 112 113 static int lpfc_debugfs_mask_disc_trc; 114 module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); 115 MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, 116 "Set debugfs discovery trace mask"); 117 118 #include <linux/debugfs.h> 119 120 static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); 121 static unsigned long lpfc_debugfs_start_time = 0L; 122 123 /* iDiag */ 124 static struct lpfc_idiag idiag; 125 126 /** 127 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer 128 * @vport: The vport to gather the log info from. 129 * @buf: The buffer to dump log into. 130 * @size: The maximum amount of data to process. 131 * 132 * Description: 133 * This routine gathers the lpfc discovery debugfs data from the @vport and 134 * dumps it to @buf up to @size number of bytes. It will start at the next entry 135 * in the log and process the log until the end of the buffer. Then it will 136 * gather from the beginning of the log and process until the current entry. 137 * 138 * Notes: 139 * Discovery logging will be disabled while while this routine dumps the log. 140 * 141 * Return Value: 142 * This routine returns the amount of bytes that were dumped into @buf and will 143 * not exceed @size. 144 **/ 145 static int 146 lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) 147 { 148 int i, index, len, enable; 149 uint32_t ms; 150 struct lpfc_debugfs_trc *dtp; 151 char *buffer; 152 153 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 154 if (!buffer) 155 return 0; 156 157 enable = lpfc_debugfs_enable; 158 lpfc_debugfs_enable = 0; 159 160 len = 0; 161 index = (atomic_read(&vport->disc_trc_cnt) + 1) & 162 (lpfc_debugfs_max_disc_trc - 1); 163 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { 164 dtp = vport->disc_trc + i; 165 if (!dtp->fmt) 166 continue; 167 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 168 snprintf(buffer, 169 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 170 dtp->seq_cnt, ms, dtp->fmt); 171 len += scnprintf(buf+len, size-len, buffer, 172 dtp->data1, dtp->data2, dtp->data3); 173 } 174 for (i = 0; i < index; i++) { 175 dtp = vport->disc_trc + i; 176 if (!dtp->fmt) 177 continue; 178 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 179 snprintf(buffer, 180 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 181 dtp->seq_cnt, ms, dtp->fmt); 182 len += scnprintf(buf+len, size-len, buffer, 183 dtp->data1, dtp->data2, dtp->data3); 184 } 185 186 lpfc_debugfs_enable = enable; 187 kfree(buffer); 188 189 return len; 190 } 191 192 /** 193 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer 194 * @phba: The HBA to gather the log info from. 195 * @buf: The buffer to dump log into. 196 * @size: The maximum amount of data to process. 197 * 198 * Description: 199 * This routine gathers the lpfc slow ring debugfs data from the @phba and 200 * dumps it to @buf up to @size number of bytes. It will start at the next entry 201 * in the log and process the log until the end of the buffer. Then it will 202 * gather from the beginning of the log and process until the current entry. 203 * 204 * Notes: 205 * Slow ring logging will be disabled while while this routine dumps the log. 206 * 207 * Return Value: 208 * This routine returns the amount of bytes that were dumped into @buf and will 209 * not exceed @size. 210 **/ 211 static int 212 lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) 213 { 214 int i, index, len, enable; 215 uint32_t ms; 216 struct lpfc_debugfs_trc *dtp; 217 char *buffer; 218 219 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); 220 if (!buffer) 221 return 0; 222 223 enable = lpfc_debugfs_enable; 224 lpfc_debugfs_enable = 0; 225 226 len = 0; 227 index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & 228 (lpfc_debugfs_max_slow_ring_trc - 1); 229 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { 230 dtp = phba->slow_ring_trc + i; 231 if (!dtp->fmt) 232 continue; 233 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 234 snprintf(buffer, 235 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 236 dtp->seq_cnt, ms, dtp->fmt); 237 len += scnprintf(buf+len, size-len, buffer, 238 dtp->data1, dtp->data2, dtp->data3); 239 } 240 for (i = 0; i < index; i++) { 241 dtp = phba->slow_ring_trc + i; 242 if (!dtp->fmt) 243 continue; 244 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); 245 snprintf(buffer, 246 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", 247 dtp->seq_cnt, ms, dtp->fmt); 248 len += scnprintf(buf+len, size-len, buffer, 249 dtp->data1, dtp->data2, dtp->data3); 250 } 251 252 lpfc_debugfs_enable = enable; 253 kfree(buffer); 254 255 return len; 256 } 257 258 static int lpfc_debugfs_last_hbq = -1; 259 260 /** 261 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer 262 * @phba: The HBA to gather host buffer info from. 263 * @buf: The buffer to dump log into. 264 * @size: The maximum amount of data to process. 265 * 266 * Description: 267 * This routine dumps the host buffer queue info from the @phba to @buf up to 268 * @size number of bytes. A header that describes the current hbq state will be 269 * dumped to @buf first and then info on each hbq entry will be dumped to @buf 270 * until @size bytes have been dumped or all the hbq info has been dumped. 271 * 272 * Notes: 273 * This routine will rotate through each configured HBQ each time called. 274 * 275 * Return Value: 276 * This routine returns the amount of bytes that were dumped into @buf and will 277 * not exceed @size. 278 **/ 279 static int 280 lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) 281 { 282 int len = 0; 283 int i, j, found, posted, low; 284 uint32_t phys, raw_index, getidx; 285 struct lpfc_hbq_init *hip; 286 struct hbq_s *hbqs; 287 struct lpfc_hbq_entry *hbqe; 288 struct lpfc_dmabuf *d_buf; 289 struct hbq_dmabuf *hbq_buf; 290 291 if (phba->sli_rev != 3) 292 return 0; 293 294 spin_lock_irq(&phba->hbalock); 295 296 /* toggle between multiple hbqs, if any */ 297 i = lpfc_sli_hbq_count(); 298 if (i > 1) { 299 lpfc_debugfs_last_hbq++; 300 if (lpfc_debugfs_last_hbq >= i) 301 lpfc_debugfs_last_hbq = 0; 302 } 303 else 304 lpfc_debugfs_last_hbq = 0; 305 306 i = lpfc_debugfs_last_hbq; 307 308 len += scnprintf(buf+len, size-len, "HBQ %d Info\n", i); 309 310 hbqs = &phba->hbqs[i]; 311 posted = 0; 312 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) 313 posted++; 314 315 hip = lpfc_hbq_defs[i]; 316 len += scnprintf(buf+len, size-len, 317 "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", 318 hip->hbq_index, hip->profile, hip->rn, 319 hip->buffer_count, hip->init_count, hip->add_count, posted); 320 321 raw_index = phba->hbq_get[i]; 322 getidx = le32_to_cpu(raw_index); 323 len += scnprintf(buf+len, size-len, 324 "entries:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", 325 hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, 326 hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); 327 328 hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; 329 for (j=0; j<hbqs->entry_count; j++) { 330 len += scnprintf(buf+len, size-len, 331 "%03d: %08x %04x %05x ", j, 332 le32_to_cpu(hbqe->bde.addrLow), 333 le32_to_cpu(hbqe->bde.tus.w), 334 le32_to_cpu(hbqe->buffer_tag)); 335 i = 0; 336 found = 0; 337 338 /* First calculate if slot has an associated posted buffer */ 339 low = hbqs->hbqPutIdx - posted; 340 if (low >= 0) { 341 if ((j >= hbqs->hbqPutIdx) || (j < low)) { 342 len += scnprintf(buf + len, size - len, 343 "Unused\n"); 344 goto skipit; 345 } 346 } 347 else { 348 if ((j >= hbqs->hbqPutIdx) && 349 (j < (hbqs->entry_count+low))) { 350 len += scnprintf(buf + len, size - len, 351 "Unused\n"); 352 goto skipit; 353 } 354 } 355 356 /* Get the Buffer info for the posted buffer */ 357 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { 358 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); 359 phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); 360 if (phys == le32_to_cpu(hbqe->bde.addrLow)) { 361 len += scnprintf(buf+len, size-len, 362 "Buf%d: x%px %06x\n", i, 363 hbq_buf->dbuf.virt, hbq_buf->tag); 364 found = 1; 365 break; 366 } 367 i++; 368 } 369 if (!found) { 370 len += scnprintf(buf+len, size-len, "No DMAinfo?\n"); 371 } 372 skipit: 373 hbqe++; 374 if (len > LPFC_HBQINFO_SIZE - 54) 375 break; 376 } 377 spin_unlock_irq(&phba->hbalock); 378 return len; 379 } 380 381 static int lpfc_debugfs_last_xripool; 382 383 /** 384 * lpfc_debugfs_common_xri_data - Dump Hardware Queue info to a buffer 385 * @phba: The HBA to gather host buffer info from. 386 * @buf: The buffer to dump log into. 387 * @size: The maximum amount of data to process. 388 * 389 * Description: 390 * This routine dumps the Hardware Queue info from the @phba to @buf up to 391 * @size number of bytes. A header that describes the current hdwq state will be 392 * dumped to @buf first and then info on each hdwq entry will be dumped to @buf 393 * until @size bytes have been dumped or all the hdwq info has been dumped. 394 * 395 * Notes: 396 * This routine will rotate through each configured Hardware Queue each 397 * time called. 398 * 399 * Return Value: 400 * This routine returns the amount of bytes that were dumped into @buf and will 401 * not exceed @size. 402 **/ 403 static int 404 lpfc_debugfs_commonxripools_data(struct lpfc_hba *phba, char *buf, int size) 405 { 406 struct lpfc_sli4_hdw_queue *qp; 407 int len = 0; 408 int i, out; 409 unsigned long iflag; 410 411 for (i = 0; i < phba->cfg_hdw_queue; i++) { 412 if (len > (LPFC_DUMP_MULTIXRIPOOL_SIZE - 80)) 413 break; 414 qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_xripool]; 415 416 len += scnprintf(buf + len, size - len, "HdwQ %d Info ", i); 417 spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag); 418 spin_lock(&qp->io_buf_list_get_lock); 419 spin_lock(&qp->io_buf_list_put_lock); 420 out = qp->total_io_bufs - (qp->get_io_bufs + qp->put_io_bufs + 421 qp->abts_scsi_io_bufs + qp->abts_nvme_io_bufs); 422 len += scnprintf(buf + len, size - len, 423 "tot:%d get:%d put:%d mt:%d " 424 "ABTS scsi:%d nvme:%d Out:%d\n", 425 qp->total_io_bufs, qp->get_io_bufs, qp->put_io_bufs, 426 qp->empty_io_bufs, qp->abts_scsi_io_bufs, 427 qp->abts_nvme_io_bufs, out); 428 spin_unlock(&qp->io_buf_list_put_lock); 429 spin_unlock(&qp->io_buf_list_get_lock); 430 spin_unlock_irqrestore(&qp->abts_io_buf_list_lock, iflag); 431 432 lpfc_debugfs_last_xripool++; 433 if (lpfc_debugfs_last_xripool >= phba->cfg_hdw_queue) 434 lpfc_debugfs_last_xripool = 0; 435 } 436 437 return len; 438 } 439 440 /** 441 * lpfc_debugfs_multixripools_data - Display multi-XRI pools information 442 * @phba: The HBA to gather host buffer info from. 443 * @buf: The buffer to dump log into. 444 * @size: The maximum amount of data to process. 445 * 446 * Description: 447 * This routine displays current multi-XRI pools information including XRI 448 * count in public, private and txcmplq. It also displays current high and 449 * low watermark. 450 * 451 * Return Value: 452 * This routine returns the amount of bytes that were dumped into @buf and will 453 * not exceed @size. 454 **/ 455 static int 456 lpfc_debugfs_multixripools_data(struct lpfc_hba *phba, char *buf, int size) 457 { 458 u32 i; 459 u32 hwq_count; 460 struct lpfc_sli4_hdw_queue *qp; 461 struct lpfc_multixri_pool *multixri_pool; 462 struct lpfc_pvt_pool *pvt_pool; 463 struct lpfc_pbl_pool *pbl_pool; 464 u32 txcmplq_cnt; 465 char tmp[LPFC_DEBUG_OUT_LINE_SZ] = {0}; 466 467 if (phba->sli_rev != LPFC_SLI_REV4) 468 return 0; 469 470 if (!phba->sli4_hba.hdwq) 471 return 0; 472 473 if (!phba->cfg_xri_rebalancing) { 474 i = lpfc_debugfs_commonxripools_data(phba, buf, size); 475 return i; 476 } 477 478 /* 479 * Pbl: Current number of free XRIs in public pool 480 * Pvt: Current number of free XRIs in private pool 481 * Busy: Current number of outstanding XRIs 482 * HWM: Current high watermark 483 * pvt_empty: Incremented by 1 when IO submission fails (no xri) 484 * pbl_empty: Incremented by 1 when all pbl_pool are empty during 485 * IO submission 486 */ 487 scnprintf(tmp, sizeof(tmp), 488 "HWQ: Pbl Pvt Busy HWM | pvt_empty pbl_empty "); 489 if (strlcat(buf, tmp, size) >= size) 490 return strnlen(buf, size); 491 492 #ifdef LPFC_MXP_STAT 493 /* 494 * MAXH: Max high watermark seen so far 495 * above_lmt: Incremented by 1 if xri_owned > xri_limit during 496 * IO submission 497 * below_lmt: Incremented by 1 if xri_owned <= xri_limit during 498 * IO submission 499 * locPbl_hit: Incremented by 1 if successfully get a batch of XRI from 500 * local pbl_pool 501 * othPbl_hit: Incremented by 1 if successfully get a batch of XRI from 502 * other pbl_pool 503 */ 504 scnprintf(tmp, sizeof(tmp), 505 "MAXH above_lmt below_lmt locPbl_hit othPbl_hit"); 506 if (strlcat(buf, tmp, size) >= size) 507 return strnlen(buf, size); 508 509 /* 510 * sPbl: snapshot of Pbl 15 sec after stat gets cleared 511 * sPvt: snapshot of Pvt 15 sec after stat gets cleared 512 * sBusy: snapshot of Busy 15 sec after stat gets cleared 513 */ 514 scnprintf(tmp, sizeof(tmp), 515 " | sPbl sPvt sBusy"); 516 if (strlcat(buf, tmp, size) >= size) 517 return strnlen(buf, size); 518 #endif 519 520 scnprintf(tmp, sizeof(tmp), "\n"); 521 if (strlcat(buf, tmp, size) >= size) 522 return strnlen(buf, size); 523 524 hwq_count = phba->cfg_hdw_queue; 525 for (i = 0; i < hwq_count; i++) { 526 qp = &phba->sli4_hba.hdwq[i]; 527 multixri_pool = qp->p_multixri_pool; 528 if (!multixri_pool) 529 continue; 530 pbl_pool = &multixri_pool->pbl_pool; 531 pvt_pool = &multixri_pool->pvt_pool; 532 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt; 533 534 scnprintf(tmp, sizeof(tmp), 535 "%03d: %4d %4d %4d %4d | %10d %10d ", 536 i, pbl_pool->count, pvt_pool->count, 537 txcmplq_cnt, pvt_pool->high_watermark, 538 qp->empty_io_bufs, multixri_pool->pbl_empty_count); 539 if (strlcat(buf, tmp, size) >= size) 540 break; 541 542 #ifdef LPFC_MXP_STAT 543 scnprintf(tmp, sizeof(tmp), 544 "%4d %10d %10d %10d %10d", 545 multixri_pool->stat_max_hwm, 546 multixri_pool->above_limit_count, 547 multixri_pool->below_limit_count, 548 multixri_pool->local_pbl_hit_count, 549 multixri_pool->other_pbl_hit_count); 550 if (strlcat(buf, tmp, size) >= size) 551 break; 552 553 scnprintf(tmp, sizeof(tmp), 554 " | %4d %4d %5d", 555 multixri_pool->stat_pbl_count, 556 multixri_pool->stat_pvt_count, 557 multixri_pool->stat_busy_count); 558 if (strlcat(buf, tmp, size) >= size) 559 break; 560 #endif 561 562 scnprintf(tmp, sizeof(tmp), "\n"); 563 if (strlcat(buf, tmp, size) >= size) 564 break; 565 } 566 return strnlen(buf, size); 567 } 568 569 570 #ifdef LPFC_HDWQ_LOCK_STAT 571 static int lpfc_debugfs_last_lock; 572 573 /** 574 * lpfc_debugfs_lockstat_data - Dump Hardware Queue info to a buffer 575 * @phba: The HBA to gather host buffer info from. 576 * @buf: The buffer to dump log into. 577 * @size: The maximum amount of data to process. 578 * 579 * Description: 580 * This routine dumps the Hardware Queue info from the @phba to @buf up to 581 * @size number of bytes. A header that describes the current hdwq state will be 582 * dumped to @buf first and then info on each hdwq entry will be dumped to @buf 583 * until @size bytes have been dumped or all the hdwq info has been dumped. 584 * 585 * Notes: 586 * This routine will rotate through each configured Hardware Queue each 587 * time called. 588 * 589 * Return Value: 590 * This routine returns the amount of bytes that were dumped into @buf and will 591 * not exceed @size. 592 **/ 593 static int 594 lpfc_debugfs_lockstat_data(struct lpfc_hba *phba, char *buf, int size) 595 { 596 struct lpfc_sli4_hdw_queue *qp; 597 int len = 0; 598 int i; 599 600 if (phba->sli_rev != LPFC_SLI_REV4) 601 return 0; 602 603 if (!phba->sli4_hba.hdwq) 604 return 0; 605 606 for (i = 0; i < phba->cfg_hdw_queue; i++) { 607 if (len > (LPFC_HDWQINFO_SIZE - 100)) 608 break; 609 qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_lock]; 610 611 len += scnprintf(buf + len, size - len, "HdwQ %03d Lock ", i); 612 if (phba->cfg_xri_rebalancing) { 613 len += scnprintf(buf + len, size - len, 614 "get_pvt:%d mv_pvt:%d " 615 "mv2pub:%d mv2pvt:%d " 616 "put_pvt:%d put_pub:%d wq:%d\n", 617 qp->lock_conflict.alloc_pvt_pool, 618 qp->lock_conflict.mv_from_pvt_pool, 619 qp->lock_conflict.mv_to_pub_pool, 620 qp->lock_conflict.mv_to_pvt_pool, 621 qp->lock_conflict.free_pvt_pool, 622 qp->lock_conflict.free_pub_pool, 623 qp->lock_conflict.wq_access); 624 } else { 625 len += scnprintf(buf + len, size - len, 626 "get:%d put:%d free:%d wq:%d\n", 627 qp->lock_conflict.alloc_xri_get, 628 qp->lock_conflict.alloc_xri_put, 629 qp->lock_conflict.free_xri, 630 qp->lock_conflict.wq_access); 631 } 632 633 lpfc_debugfs_last_lock++; 634 if (lpfc_debugfs_last_lock >= phba->cfg_hdw_queue) 635 lpfc_debugfs_last_lock = 0; 636 } 637 638 return len; 639 } 640 #endif 641 642 static int lpfc_debugfs_last_hba_slim_off; 643 644 /** 645 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer 646 * @phba: The HBA to gather SLIM info from. 647 * @buf: The buffer to dump log into. 648 * @size: The maximum amount of data to process. 649 * 650 * Description: 651 * This routine dumps the current contents of HBA SLIM for the HBA associated 652 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. 653 * 654 * Notes: 655 * This routine will only dump up to 1024 bytes of data each time called and 656 * should be called multiple times to dump the entire HBA SLIM. 657 * 658 * Return Value: 659 * This routine returns the amount of bytes that were dumped into @buf and will 660 * not exceed @size. 661 **/ 662 static int 663 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) 664 { 665 int len = 0; 666 int i, off; 667 uint32_t *ptr; 668 char *buffer; 669 670 buffer = kmalloc(1024, GFP_KERNEL); 671 if (!buffer) 672 return 0; 673 674 off = 0; 675 spin_lock_irq(&phba->hbalock); 676 677 len += scnprintf(buf+len, size-len, "HBA SLIM\n"); 678 lpfc_memcpy_from_slim(buffer, 679 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); 680 681 ptr = (uint32_t *)&buffer[0]; 682 off = lpfc_debugfs_last_hba_slim_off; 683 684 /* Set it up for the next time */ 685 lpfc_debugfs_last_hba_slim_off += 1024; 686 if (lpfc_debugfs_last_hba_slim_off >= 4096) 687 lpfc_debugfs_last_hba_slim_off = 0; 688 689 i = 1024; 690 while (i > 0) { 691 len += scnprintf(buf+len, size-len, 692 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 693 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 694 *(ptr+5), *(ptr+6), *(ptr+7)); 695 ptr += 8; 696 i -= (8 * sizeof(uint32_t)); 697 off += (8 * sizeof(uint32_t)); 698 } 699 700 spin_unlock_irq(&phba->hbalock); 701 kfree(buffer); 702 703 return len; 704 } 705 706 /** 707 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer 708 * @phba: The HBA to gather Host SLIM info from. 709 * @buf: The buffer to dump log into. 710 * @size: The maximum amount of data to process. 711 * 712 * Description: 713 * This routine dumps the current contents of host SLIM for the host associated 714 * with @phba to @buf up to @size bytes of data. The dump will contain the 715 * Mailbox, PCB, Rings, and Registers that are located in host memory. 716 * 717 * Return Value: 718 * This routine returns the amount of bytes that were dumped into @buf and will 719 * not exceed @size. 720 **/ 721 static int 722 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) 723 { 724 int len = 0; 725 int i, off; 726 uint32_t word0, word1, word2, word3; 727 uint32_t *ptr; 728 struct lpfc_pgp *pgpp; 729 struct lpfc_sli *psli = &phba->sli; 730 struct lpfc_sli_ring *pring; 731 732 off = 0; 733 spin_lock_irq(&phba->hbalock); 734 735 len += scnprintf(buf+len, size-len, "SLIM Mailbox\n"); 736 ptr = (uint32_t *)phba->slim2p.virt; 737 i = sizeof(MAILBOX_t); 738 while (i > 0) { 739 len += scnprintf(buf+len, size-len, 740 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 741 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 742 *(ptr+5), *(ptr+6), *(ptr+7)); 743 ptr += 8; 744 i -= (8 * sizeof(uint32_t)); 745 off += (8 * sizeof(uint32_t)); 746 } 747 748 len += scnprintf(buf+len, size-len, "SLIM PCB\n"); 749 ptr = (uint32_t *)phba->pcb; 750 i = sizeof(PCB_t); 751 while (i > 0) { 752 len += scnprintf(buf+len, size-len, 753 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", 754 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), 755 *(ptr+5), *(ptr+6), *(ptr+7)); 756 ptr += 8; 757 i -= (8 * sizeof(uint32_t)); 758 off += (8 * sizeof(uint32_t)); 759 } 760 761 if (phba->sli_rev <= LPFC_SLI_REV3) { 762 for (i = 0; i < 4; i++) { 763 pgpp = &phba->port_gp[i]; 764 pring = &psli->sli3_ring[i]; 765 len += scnprintf(buf+len, size-len, 766 "Ring %d: CMD GetInx:%d " 767 "(Max:%d Next:%d " 768 "Local:%d flg:x%x) " 769 "RSP PutInx:%d Max:%d\n", 770 i, pgpp->cmdGetInx, 771 pring->sli.sli3.numCiocb, 772 pring->sli.sli3.next_cmdidx, 773 pring->sli.sli3.local_getidx, 774 pring->flag, pgpp->rspPutInx, 775 pring->sli.sli3.numRiocb); 776 } 777 778 word0 = readl(phba->HAregaddr); 779 word1 = readl(phba->CAregaddr); 780 word2 = readl(phba->HSregaddr); 781 word3 = readl(phba->HCregaddr); 782 len += scnprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " 783 "HC:%08x\n", word0, word1, word2, word3); 784 } 785 spin_unlock_irq(&phba->hbalock); 786 return len; 787 } 788 789 /** 790 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer 791 * @vport: The vport to gather target node info from. 792 * @buf: The buffer to dump log into. 793 * @size: The maximum amount of data to process. 794 * 795 * Description: 796 * This routine dumps the current target node list associated with @vport to 797 * @buf up to @size bytes of data. Each node entry in the dump will contain a 798 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. 799 * 800 * Return Value: 801 * This routine returns the amount of bytes that were dumped into @buf and will 802 * not exceed @size. 803 **/ 804 static int 805 lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) 806 { 807 int len = 0; 808 int i, iocnt, outio, cnt; 809 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 810 struct lpfc_hba *phba = vport->phba; 811 struct lpfc_nodelist *ndlp; 812 unsigned char *statep; 813 struct nvme_fc_local_port *localport; 814 struct nvme_fc_remote_port *nrport = NULL; 815 struct lpfc_nvme_rport *rport; 816 817 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); 818 outio = 0; 819 820 len += scnprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n"); 821 spin_lock_irq(shost->host_lock); 822 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 823 iocnt = 0; 824 if (!cnt) { 825 len += scnprintf(buf+len, size-len, 826 "Missing Nodelist Entries\n"); 827 break; 828 } 829 cnt--; 830 switch (ndlp->nlp_state) { 831 case NLP_STE_UNUSED_NODE: 832 statep = "UNUSED"; 833 break; 834 case NLP_STE_PLOGI_ISSUE: 835 statep = "PLOGI "; 836 break; 837 case NLP_STE_ADISC_ISSUE: 838 statep = "ADISC "; 839 break; 840 case NLP_STE_REG_LOGIN_ISSUE: 841 statep = "REGLOG"; 842 break; 843 case NLP_STE_PRLI_ISSUE: 844 statep = "PRLI "; 845 break; 846 case NLP_STE_LOGO_ISSUE: 847 statep = "LOGO "; 848 break; 849 case NLP_STE_UNMAPPED_NODE: 850 statep = "UNMAP "; 851 iocnt = 1; 852 break; 853 case NLP_STE_MAPPED_NODE: 854 statep = "MAPPED"; 855 iocnt = 1; 856 break; 857 case NLP_STE_NPR_NODE: 858 statep = "NPR "; 859 break; 860 default: 861 statep = "UNKNOWN"; 862 } 863 len += scnprintf(buf+len, size-len, "%s DID:x%06x ", 864 statep, ndlp->nlp_DID); 865 len += scnprintf(buf+len, size-len, 866 "WWPN x%llx ", 867 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 868 len += scnprintf(buf+len, size-len, 869 "WWNN x%llx ", 870 wwn_to_u64(ndlp->nlp_nodename.u.wwn)); 871 if (ndlp->nlp_flag & NLP_RPI_REGISTERED) 872 len += scnprintf(buf+len, size-len, "RPI:%03d ", 873 ndlp->nlp_rpi); 874 else 875 len += scnprintf(buf+len, size-len, "RPI:none "); 876 len += scnprintf(buf+len, size-len, "flag:x%08x ", 877 ndlp->nlp_flag); 878 if (!ndlp->nlp_type) 879 len += scnprintf(buf+len, size-len, "UNKNOWN_TYPE "); 880 if (ndlp->nlp_type & NLP_FC_NODE) 881 len += scnprintf(buf+len, size-len, "FC_NODE "); 882 if (ndlp->nlp_type & NLP_FABRIC) { 883 len += scnprintf(buf+len, size-len, "FABRIC "); 884 iocnt = 0; 885 } 886 if (ndlp->nlp_type & NLP_FCP_TARGET) 887 len += scnprintf(buf+len, size-len, "FCP_TGT sid:%d ", 888 ndlp->nlp_sid); 889 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 890 len += scnprintf(buf+len, size-len, "FCP_INITIATOR "); 891 if (ndlp->nlp_type & NLP_NVME_TARGET) 892 len += scnprintf(buf + len, 893 size - len, "NVME_TGT sid:%d ", 894 NLP_NO_SID); 895 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 896 len += scnprintf(buf + len, 897 size - len, "NVME_INITIATOR "); 898 len += scnprintf(buf+len, size-len, "usgmap:%x ", 899 ndlp->nlp_usg_map); 900 len += scnprintf(buf+len, size-len, "refcnt:%x", 901 kref_read(&ndlp->kref)); 902 if (iocnt) { 903 i = atomic_read(&ndlp->cmd_pending); 904 len += scnprintf(buf + len, size - len, 905 " OutIO:x%x Qdepth x%x", 906 i, ndlp->cmd_qdepth); 907 outio += i; 908 } 909 len += scnprintf(buf + len, size - len, "defer:%x ", 910 ndlp->nlp_defer_did); 911 len += scnprintf(buf+len, size-len, "\n"); 912 } 913 spin_unlock_irq(shost->host_lock); 914 915 len += scnprintf(buf + len, size - len, 916 "\nOutstanding IO x%x\n", outio); 917 918 if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) { 919 len += scnprintf(buf + len, size - len, 920 "\nNVME Targetport Entry ...\n"); 921 922 /* Port state is only one of two values for now. */ 923 if (phba->targetport->port_id) 924 statep = "REGISTERED"; 925 else 926 statep = "INIT"; 927 len += scnprintf(buf + len, size - len, 928 "TGT WWNN x%llx WWPN x%llx State %s\n", 929 wwn_to_u64(vport->fc_nodename.u.wwn), 930 wwn_to_u64(vport->fc_portname.u.wwn), 931 statep); 932 len += scnprintf(buf + len, size - len, 933 " Targetport DID x%06x\n", 934 phba->targetport->port_id); 935 goto out_exit; 936 } 937 938 len += scnprintf(buf + len, size - len, 939 "\nNVME Lport/Rport Entries ...\n"); 940 941 localport = vport->localport; 942 if (!localport) 943 goto out_exit; 944 945 spin_lock_irq(shost->host_lock); 946 947 /* Port state is only one of two values for now. */ 948 if (localport->port_id) 949 statep = "ONLINE"; 950 else 951 statep = "UNKNOWN "; 952 953 len += scnprintf(buf + len, size - len, 954 "Lport DID x%06x PortState %s\n", 955 localport->port_id, statep); 956 957 len += scnprintf(buf + len, size - len, "\tRport List:\n"); 958 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 959 /* local short-hand pointer. */ 960 spin_lock(&phba->hbalock); 961 rport = lpfc_ndlp_get_nrport(ndlp); 962 if (rport) 963 nrport = rport->remoteport; 964 else 965 nrport = NULL; 966 spin_unlock(&phba->hbalock); 967 if (!nrport) 968 continue; 969 970 /* Port state is only one of two values for now. */ 971 switch (nrport->port_state) { 972 case FC_OBJSTATE_ONLINE: 973 statep = "ONLINE"; 974 break; 975 case FC_OBJSTATE_UNKNOWN: 976 statep = "UNKNOWN "; 977 break; 978 default: 979 statep = "UNSUPPORTED"; 980 break; 981 } 982 983 /* Tab in to show lport ownership. */ 984 len += scnprintf(buf + len, size - len, 985 "\t%s Port ID:x%06x ", 986 statep, nrport->port_id); 987 len += scnprintf(buf + len, size - len, "WWPN x%llx ", 988 nrport->port_name); 989 len += scnprintf(buf + len, size - len, "WWNN x%llx ", 990 nrport->node_name); 991 992 /* An NVME rport can have multiple roles. */ 993 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) 994 len += scnprintf(buf + len, size - len, 995 "INITIATOR "); 996 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) 997 len += scnprintf(buf + len, size - len, 998 "TARGET "); 999 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) 1000 len += scnprintf(buf + len, size - len, 1001 "DISCSRVC "); 1002 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 1003 FC_PORT_ROLE_NVME_TARGET | 1004 FC_PORT_ROLE_NVME_DISCOVERY)) 1005 len += scnprintf(buf + len, size - len, 1006 "UNKNOWN ROLE x%x", 1007 nrport->port_role); 1008 /* Terminate the string. */ 1009 len += scnprintf(buf + len, size - len, "\n"); 1010 } 1011 1012 spin_unlock_irq(shost->host_lock); 1013 out_exit: 1014 return len; 1015 } 1016 1017 /** 1018 * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer 1019 * @vport: The vport to gather target node info from. 1020 * @buf: The buffer to dump log into. 1021 * @size: The maximum amount of data to process. 1022 * 1023 * Description: 1024 * This routine dumps the NVME statistics associated with @vport 1025 * 1026 * Return Value: 1027 * This routine returns the amount of bytes that were dumped into @buf and will 1028 * not exceed @size. 1029 **/ 1030 static int 1031 lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size) 1032 { 1033 struct lpfc_hba *phba = vport->phba; 1034 struct lpfc_nvmet_tgtport *tgtp; 1035 struct lpfc_async_xchg_ctx *ctxp, *next_ctxp; 1036 struct nvme_fc_local_port *localport; 1037 struct lpfc_fc4_ctrl_stat *cstat; 1038 struct lpfc_nvme_lport *lport; 1039 uint64_t data1, data2, data3; 1040 uint64_t tot, totin, totout; 1041 int cnt, i; 1042 int len = 0; 1043 1044 if (phba->nvmet_support) { 1045 if (!phba->targetport) 1046 return len; 1047 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 1048 len += scnprintf(buf + len, size - len, 1049 "\nNVME Targetport Statistics\n"); 1050 1051 len += scnprintf(buf + len, size - len, 1052 "LS: Rcv %08x Drop %08x Abort %08x\n", 1053 atomic_read(&tgtp->rcv_ls_req_in), 1054 atomic_read(&tgtp->rcv_ls_req_drop), 1055 atomic_read(&tgtp->xmt_ls_abort)); 1056 if (atomic_read(&tgtp->rcv_ls_req_in) != 1057 atomic_read(&tgtp->rcv_ls_req_out)) { 1058 len += scnprintf(buf + len, size - len, 1059 "Rcv LS: in %08x != out %08x\n", 1060 atomic_read(&tgtp->rcv_ls_req_in), 1061 atomic_read(&tgtp->rcv_ls_req_out)); 1062 } 1063 1064 len += scnprintf(buf + len, size - len, 1065 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 1066 atomic_read(&tgtp->xmt_ls_rsp), 1067 atomic_read(&tgtp->xmt_ls_drop), 1068 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 1069 1070 len += scnprintf(buf + len, size - len, 1071 "LS: RSP Abort %08x xb %08x Err %08x\n", 1072 atomic_read(&tgtp->xmt_ls_rsp_aborted), 1073 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 1074 atomic_read(&tgtp->xmt_ls_rsp_error)); 1075 1076 len += scnprintf(buf + len, size - len, 1077 "FCP: Rcv %08x Defer %08x Release %08x " 1078 "Drop %08x\n", 1079 atomic_read(&tgtp->rcv_fcp_cmd_in), 1080 atomic_read(&tgtp->rcv_fcp_cmd_defer), 1081 atomic_read(&tgtp->xmt_fcp_release), 1082 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 1083 1084 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 1085 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 1086 len += scnprintf(buf + len, size - len, 1087 "Rcv FCP: in %08x != out %08x\n", 1088 atomic_read(&tgtp->rcv_fcp_cmd_in), 1089 atomic_read(&tgtp->rcv_fcp_cmd_out)); 1090 } 1091 1092 len += scnprintf(buf + len, size - len, 1093 "FCP Rsp: read %08x readrsp %08x " 1094 "write %08x rsp %08x\n", 1095 atomic_read(&tgtp->xmt_fcp_read), 1096 atomic_read(&tgtp->xmt_fcp_read_rsp), 1097 atomic_read(&tgtp->xmt_fcp_write), 1098 atomic_read(&tgtp->xmt_fcp_rsp)); 1099 1100 len += scnprintf(buf + len, size - len, 1101 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 1102 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 1103 atomic_read(&tgtp->xmt_fcp_rsp_error), 1104 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 1105 1106 len += scnprintf(buf + len, size - len, 1107 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 1108 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 1109 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 1110 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 1111 1112 len += scnprintf(buf + len, size - len, 1113 "ABORT: Xmt %08x Cmpl %08x\n", 1114 atomic_read(&tgtp->xmt_fcp_abort), 1115 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 1116 1117 len += scnprintf(buf + len, size - len, 1118 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x", 1119 atomic_read(&tgtp->xmt_abort_sol), 1120 atomic_read(&tgtp->xmt_abort_unsol), 1121 atomic_read(&tgtp->xmt_abort_rsp), 1122 atomic_read(&tgtp->xmt_abort_rsp_error)); 1123 1124 len += scnprintf(buf + len, size - len, "\n"); 1125 1126 cnt = 0; 1127 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1128 list_for_each_entry_safe(ctxp, next_ctxp, 1129 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1130 list) { 1131 cnt++; 1132 } 1133 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1134 if (cnt) { 1135 len += scnprintf(buf + len, size - len, 1136 "ABORT: %d ctx entries\n", cnt); 1137 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1138 list_for_each_entry_safe(ctxp, next_ctxp, 1139 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1140 list) { 1141 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) 1142 break; 1143 len += scnprintf(buf + len, size - len, 1144 "Entry: oxid %x state %x " 1145 "flag %x\n", 1146 ctxp->oxid, ctxp->state, 1147 ctxp->flag); 1148 } 1149 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1150 } 1151 1152 /* Calculate outstanding IOs */ 1153 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 1154 tot += atomic_read(&tgtp->xmt_fcp_release); 1155 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 1156 1157 len += scnprintf(buf + len, size - len, 1158 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 1159 "CTX Outstanding %08llx\n", 1160 phba->sli4_hba.nvmet_xri_cnt, 1161 phba->sli4_hba.nvmet_io_wait_cnt, 1162 phba->sli4_hba.nvmet_io_wait_total, 1163 tot); 1164 } else { 1165 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 1166 return len; 1167 1168 localport = vport->localport; 1169 if (!localport) 1170 return len; 1171 lport = (struct lpfc_nvme_lport *)localport->private; 1172 if (!lport) 1173 return len; 1174 1175 len += scnprintf(buf + len, size - len, 1176 "\nNVME HDWQ Statistics\n"); 1177 1178 len += scnprintf(buf + len, size - len, 1179 "LS: Xmt %016x Cmpl %016x\n", 1180 atomic_read(&lport->fc4NvmeLsRequests), 1181 atomic_read(&lport->fc4NvmeLsCmpls)); 1182 1183 totin = 0; 1184 totout = 0; 1185 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1186 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 1187 tot = cstat->io_cmpls; 1188 totin += tot; 1189 data1 = cstat->input_requests; 1190 data2 = cstat->output_requests; 1191 data3 = cstat->control_requests; 1192 totout += (data1 + data2 + data3); 1193 1194 /* Limit to 32, debugfs display buffer limitation */ 1195 if (i >= 32) 1196 continue; 1197 1198 len += scnprintf(buf + len, PAGE_SIZE - len, 1199 "HDWQ (%d): Rd %016llx Wr %016llx " 1200 "IO %016llx ", 1201 i, data1, data2, data3); 1202 len += scnprintf(buf + len, PAGE_SIZE - len, 1203 "Cmpl %016llx OutIO %016llx\n", 1204 tot, ((data1 + data2 + data3) - tot)); 1205 } 1206 len += scnprintf(buf + len, PAGE_SIZE - len, 1207 "Total FCP Cmpl %016llx Issue %016llx " 1208 "OutIO %016llx\n", 1209 totin, totout, totout - totin); 1210 1211 len += scnprintf(buf + len, size - len, 1212 "LS Xmt Err: Abrt %08x Err %08x " 1213 "Cmpl Err: xb %08x Err %08x\n", 1214 atomic_read(&lport->xmt_ls_abort), 1215 atomic_read(&lport->xmt_ls_err), 1216 atomic_read(&lport->cmpl_ls_xb), 1217 atomic_read(&lport->cmpl_ls_err)); 1218 1219 len += scnprintf(buf + len, size - len, 1220 "FCP Xmt Err: noxri %06x nondlp %06x " 1221 "qdepth %06x wqerr %06x err %06x Abrt %06x\n", 1222 atomic_read(&lport->xmt_fcp_noxri), 1223 atomic_read(&lport->xmt_fcp_bad_ndlp), 1224 atomic_read(&lport->xmt_fcp_qdepth), 1225 atomic_read(&lport->xmt_fcp_wqerr), 1226 atomic_read(&lport->xmt_fcp_err), 1227 atomic_read(&lport->xmt_fcp_abort)); 1228 1229 len += scnprintf(buf + len, size - len, 1230 "FCP Cmpl Err: xb %08x Err %08x\n", 1231 atomic_read(&lport->cmpl_fcp_xb), 1232 atomic_read(&lport->cmpl_fcp_err)); 1233 1234 } 1235 1236 return len; 1237 } 1238 1239 /** 1240 * lpfc_debugfs_scsistat_data - Dump target node list to a buffer 1241 * @vport: The vport to gather target node info from. 1242 * @buf: The buffer to dump log into. 1243 * @size: The maximum amount of data to process. 1244 * 1245 * Description: 1246 * This routine dumps the SCSI statistics associated with @vport 1247 * 1248 * Return Value: 1249 * This routine returns the amount of bytes that were dumped into @buf and will 1250 * not exceed @size. 1251 **/ 1252 static int 1253 lpfc_debugfs_scsistat_data(struct lpfc_vport *vport, char *buf, int size) 1254 { 1255 int len; 1256 struct lpfc_hba *phba = vport->phba; 1257 struct lpfc_fc4_ctrl_stat *cstat; 1258 u64 data1, data2, data3; 1259 u64 tot, totin, totout; 1260 int i; 1261 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 1262 1263 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 1264 (phba->sli_rev != LPFC_SLI_REV4)) 1265 return 0; 1266 1267 scnprintf(buf, size, "SCSI HDWQ Statistics\n"); 1268 1269 totin = 0; 1270 totout = 0; 1271 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1272 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 1273 tot = cstat->io_cmpls; 1274 totin += tot; 1275 data1 = cstat->input_requests; 1276 data2 = cstat->output_requests; 1277 data3 = cstat->control_requests; 1278 totout += (data1 + data2 + data3); 1279 1280 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 1281 "IO %016llx ", i, data1, data2, data3); 1282 if (strlcat(buf, tmp, size) >= size) 1283 goto buffer_done; 1284 1285 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 1286 tot, ((data1 + data2 + data3) - tot)); 1287 if (strlcat(buf, tmp, size) >= size) 1288 goto buffer_done; 1289 } 1290 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 1291 "OutIO %016llx\n", totin, totout, totout - totin); 1292 strlcat(buf, tmp, size); 1293 1294 buffer_done: 1295 len = strnlen(buf, size); 1296 1297 return len; 1298 } 1299 1300 void 1301 lpfc_io_ktime(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) 1302 { 1303 uint64_t seg1, seg2, seg3, seg4; 1304 uint64_t segsum; 1305 1306 if (!lpfc_cmd->ts_last_cmd || 1307 !lpfc_cmd->ts_cmd_start || 1308 !lpfc_cmd->ts_cmd_wqput || 1309 !lpfc_cmd->ts_isr_cmpl || 1310 !lpfc_cmd->ts_data_io) 1311 return; 1312 1313 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_cmd_start) 1314 return; 1315 if (lpfc_cmd->ts_cmd_start < lpfc_cmd->ts_last_cmd) 1316 return; 1317 if (lpfc_cmd->ts_cmd_wqput < lpfc_cmd->ts_cmd_start) 1318 return; 1319 if (lpfc_cmd->ts_isr_cmpl < lpfc_cmd->ts_cmd_wqput) 1320 return; 1321 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_isr_cmpl) 1322 return; 1323 /* 1324 * Segment 1 - Time from Last FCP command cmpl is handed 1325 * off to NVME Layer to start of next command. 1326 * Segment 2 - Time from Driver receives a IO cmd start 1327 * from NVME Layer to WQ put is done on IO cmd. 1328 * Segment 3 - Time from Driver WQ put is done on IO cmd 1329 * to MSI-X ISR for IO cmpl. 1330 * Segment 4 - Time from MSI-X ISR for IO cmpl to when 1331 * cmpl is handled off to the NVME Layer. 1332 */ 1333 seg1 = lpfc_cmd->ts_cmd_start - lpfc_cmd->ts_last_cmd; 1334 if (seg1 > 5000000) /* 5 ms - for sequential IOs only */ 1335 seg1 = 0; 1336 1337 /* Calculate times relative to start of IO */ 1338 seg2 = (lpfc_cmd->ts_cmd_wqput - lpfc_cmd->ts_cmd_start); 1339 segsum = seg2; 1340 seg3 = lpfc_cmd->ts_isr_cmpl - lpfc_cmd->ts_cmd_start; 1341 if (segsum > seg3) 1342 return; 1343 seg3 -= segsum; 1344 segsum += seg3; 1345 1346 seg4 = lpfc_cmd->ts_data_io - lpfc_cmd->ts_cmd_start; 1347 if (segsum > seg4) 1348 return; 1349 seg4 -= segsum; 1350 1351 phba->ktime_data_samples++; 1352 phba->ktime_seg1_total += seg1; 1353 if (seg1 < phba->ktime_seg1_min) 1354 phba->ktime_seg1_min = seg1; 1355 else if (seg1 > phba->ktime_seg1_max) 1356 phba->ktime_seg1_max = seg1; 1357 phba->ktime_seg2_total += seg2; 1358 if (seg2 < phba->ktime_seg2_min) 1359 phba->ktime_seg2_min = seg2; 1360 else if (seg2 > phba->ktime_seg2_max) 1361 phba->ktime_seg2_max = seg2; 1362 phba->ktime_seg3_total += seg3; 1363 if (seg3 < phba->ktime_seg3_min) 1364 phba->ktime_seg3_min = seg3; 1365 else if (seg3 > phba->ktime_seg3_max) 1366 phba->ktime_seg3_max = seg3; 1367 phba->ktime_seg4_total += seg4; 1368 if (seg4 < phba->ktime_seg4_min) 1369 phba->ktime_seg4_min = seg4; 1370 else if (seg4 > phba->ktime_seg4_max) 1371 phba->ktime_seg4_max = seg4; 1372 1373 lpfc_cmd->ts_last_cmd = 0; 1374 lpfc_cmd->ts_cmd_start = 0; 1375 lpfc_cmd->ts_cmd_wqput = 0; 1376 lpfc_cmd->ts_isr_cmpl = 0; 1377 lpfc_cmd->ts_data_io = 0; 1378 } 1379 1380 /** 1381 * lpfc_debugfs_ioktime_data - Dump target node list to a buffer 1382 * @vport: The vport to gather target node info from. 1383 * @buf: The buffer to dump log into. 1384 * @size: The maximum amount of data to process. 1385 * 1386 * Description: 1387 * This routine dumps the NVME statistics associated with @vport 1388 * 1389 * Return Value: 1390 * This routine returns the amount of bytes that were dumped into @buf and will 1391 * not exceed @size. 1392 **/ 1393 static int 1394 lpfc_debugfs_ioktime_data(struct lpfc_vport *vport, char *buf, int size) 1395 { 1396 struct lpfc_hba *phba = vport->phba; 1397 int len = 0; 1398 1399 if (phba->nvmet_support == 0) { 1400 /* Initiator */ 1401 len += scnprintf(buf + len, PAGE_SIZE - len, 1402 "ktime %s: Total Samples: %lld\n", 1403 (phba->ktime_on ? "Enabled" : "Disabled"), 1404 phba->ktime_data_samples); 1405 if (phba->ktime_data_samples == 0) 1406 return len; 1407 1408 len += scnprintf( 1409 buf + len, PAGE_SIZE - len, 1410 "Segment 1: Last Cmd cmpl " 1411 "done -to- Start of next Cmd (in driver)\n"); 1412 len += scnprintf( 1413 buf + len, PAGE_SIZE - len, 1414 "avg:%08lld min:%08lld max %08lld\n", 1415 div_u64(phba->ktime_seg1_total, 1416 phba->ktime_data_samples), 1417 phba->ktime_seg1_min, 1418 phba->ktime_seg1_max); 1419 len += scnprintf( 1420 buf + len, PAGE_SIZE - len, 1421 "Segment 2: Driver start of Cmd " 1422 "-to- Firmware WQ doorbell\n"); 1423 len += scnprintf( 1424 buf + len, PAGE_SIZE - len, 1425 "avg:%08lld min:%08lld max %08lld\n", 1426 div_u64(phba->ktime_seg2_total, 1427 phba->ktime_data_samples), 1428 phba->ktime_seg2_min, 1429 phba->ktime_seg2_max); 1430 len += scnprintf( 1431 buf + len, PAGE_SIZE - len, 1432 "Segment 3: Firmware WQ doorbell -to- " 1433 "MSI-X ISR cmpl\n"); 1434 len += scnprintf( 1435 buf + len, PAGE_SIZE - len, 1436 "avg:%08lld min:%08lld max %08lld\n", 1437 div_u64(phba->ktime_seg3_total, 1438 phba->ktime_data_samples), 1439 phba->ktime_seg3_min, 1440 phba->ktime_seg3_max); 1441 len += scnprintf( 1442 buf + len, PAGE_SIZE - len, 1443 "Segment 4: MSI-X ISR cmpl -to- " 1444 "Cmd cmpl done\n"); 1445 len += scnprintf( 1446 buf + len, PAGE_SIZE - len, 1447 "avg:%08lld min:%08lld max %08lld\n", 1448 div_u64(phba->ktime_seg4_total, 1449 phba->ktime_data_samples), 1450 phba->ktime_seg4_min, 1451 phba->ktime_seg4_max); 1452 len += scnprintf( 1453 buf + len, PAGE_SIZE - len, 1454 "Total IO avg time: %08lld\n", 1455 div_u64(phba->ktime_seg1_total + 1456 phba->ktime_seg2_total + 1457 phba->ktime_seg3_total + 1458 phba->ktime_seg4_total, 1459 phba->ktime_data_samples)); 1460 return len; 1461 } 1462 1463 /* NVME Target */ 1464 len += scnprintf(buf + len, PAGE_SIZE-len, 1465 "ktime %s: Total Samples: %lld %lld\n", 1466 (phba->ktime_on ? "Enabled" : "Disabled"), 1467 phba->ktime_data_samples, 1468 phba->ktime_status_samples); 1469 if (phba->ktime_data_samples == 0) 1470 return len; 1471 1472 len += scnprintf(buf + len, PAGE_SIZE-len, 1473 "Segment 1: MSI-X ISR Rcv cmd -to- " 1474 "cmd pass to NVME Layer\n"); 1475 len += scnprintf(buf + len, PAGE_SIZE-len, 1476 "avg:%08lld min:%08lld max %08lld\n", 1477 div_u64(phba->ktime_seg1_total, 1478 phba->ktime_data_samples), 1479 phba->ktime_seg1_min, 1480 phba->ktime_seg1_max); 1481 len += scnprintf(buf + len, PAGE_SIZE-len, 1482 "Segment 2: cmd pass to NVME Layer- " 1483 "-to- Driver rcv cmd OP (action)\n"); 1484 len += scnprintf(buf + len, PAGE_SIZE-len, 1485 "avg:%08lld min:%08lld max %08lld\n", 1486 div_u64(phba->ktime_seg2_total, 1487 phba->ktime_data_samples), 1488 phba->ktime_seg2_min, 1489 phba->ktime_seg2_max); 1490 len += scnprintf(buf + len, PAGE_SIZE-len, 1491 "Segment 3: Driver rcv cmd OP -to- " 1492 "Firmware WQ doorbell: cmd\n"); 1493 len += scnprintf(buf + len, PAGE_SIZE-len, 1494 "avg:%08lld min:%08lld max %08lld\n", 1495 div_u64(phba->ktime_seg3_total, 1496 phba->ktime_data_samples), 1497 phba->ktime_seg3_min, 1498 phba->ktime_seg3_max); 1499 len += scnprintf(buf + len, PAGE_SIZE-len, 1500 "Segment 4: Firmware WQ doorbell: cmd " 1501 "-to- MSI-X ISR for cmd cmpl\n"); 1502 len += scnprintf(buf + len, PAGE_SIZE-len, 1503 "avg:%08lld min:%08lld max %08lld\n", 1504 div_u64(phba->ktime_seg4_total, 1505 phba->ktime_data_samples), 1506 phba->ktime_seg4_min, 1507 phba->ktime_seg4_max); 1508 len += scnprintf(buf + len, PAGE_SIZE-len, 1509 "Segment 5: MSI-X ISR for cmd cmpl " 1510 "-to- NVME layer passed cmd done\n"); 1511 len += scnprintf(buf + len, PAGE_SIZE-len, 1512 "avg:%08lld min:%08lld max %08lld\n", 1513 div_u64(phba->ktime_seg5_total, 1514 phba->ktime_data_samples), 1515 phba->ktime_seg5_min, 1516 phba->ktime_seg5_max); 1517 1518 if (phba->ktime_status_samples == 0) { 1519 len += scnprintf(buf + len, PAGE_SIZE-len, 1520 "Total: cmd received by MSI-X ISR " 1521 "-to- cmd completed on wire\n"); 1522 len += scnprintf(buf + len, PAGE_SIZE-len, 1523 "avg:%08lld min:%08lld " 1524 "max %08lld\n", 1525 div_u64(phba->ktime_seg10_total, 1526 phba->ktime_data_samples), 1527 phba->ktime_seg10_min, 1528 phba->ktime_seg10_max); 1529 return len; 1530 } 1531 1532 len += scnprintf(buf + len, PAGE_SIZE-len, 1533 "Segment 6: NVME layer passed cmd done " 1534 "-to- Driver rcv rsp status OP\n"); 1535 len += scnprintf(buf + len, PAGE_SIZE-len, 1536 "avg:%08lld min:%08lld max %08lld\n", 1537 div_u64(phba->ktime_seg6_total, 1538 phba->ktime_status_samples), 1539 phba->ktime_seg6_min, 1540 phba->ktime_seg6_max); 1541 len += scnprintf(buf + len, PAGE_SIZE-len, 1542 "Segment 7: Driver rcv rsp status OP " 1543 "-to- Firmware WQ doorbell: status\n"); 1544 len += scnprintf(buf + len, PAGE_SIZE-len, 1545 "avg:%08lld min:%08lld max %08lld\n", 1546 div_u64(phba->ktime_seg7_total, 1547 phba->ktime_status_samples), 1548 phba->ktime_seg7_min, 1549 phba->ktime_seg7_max); 1550 len += scnprintf(buf + len, PAGE_SIZE-len, 1551 "Segment 8: Firmware WQ doorbell: status" 1552 " -to- MSI-X ISR for status cmpl\n"); 1553 len += scnprintf(buf + len, PAGE_SIZE-len, 1554 "avg:%08lld min:%08lld max %08lld\n", 1555 div_u64(phba->ktime_seg8_total, 1556 phba->ktime_status_samples), 1557 phba->ktime_seg8_min, 1558 phba->ktime_seg8_max); 1559 len += scnprintf(buf + len, PAGE_SIZE-len, 1560 "Segment 9: MSI-X ISR for status cmpl " 1561 "-to- NVME layer passed status done\n"); 1562 len += scnprintf(buf + len, PAGE_SIZE-len, 1563 "avg:%08lld min:%08lld max %08lld\n", 1564 div_u64(phba->ktime_seg9_total, 1565 phba->ktime_status_samples), 1566 phba->ktime_seg9_min, 1567 phba->ktime_seg9_max); 1568 len += scnprintf(buf + len, PAGE_SIZE-len, 1569 "Total: cmd received by MSI-X ISR -to- " 1570 "cmd completed on wire\n"); 1571 len += scnprintf(buf + len, PAGE_SIZE-len, 1572 "avg:%08lld min:%08lld max %08lld\n", 1573 div_u64(phba->ktime_seg10_total, 1574 phba->ktime_status_samples), 1575 phba->ktime_seg10_min, 1576 phba->ktime_seg10_max); 1577 return len; 1578 } 1579 1580 /** 1581 * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer 1582 * @phba: The phba to gather target node info from. 1583 * @buf: The buffer to dump log into. 1584 * @size: The maximum amount of data to process. 1585 * 1586 * Description: 1587 * This routine dumps the NVME IO trace associated with @phba 1588 * 1589 * Return Value: 1590 * This routine returns the amount of bytes that were dumped into @buf and will 1591 * not exceed @size. 1592 **/ 1593 static int 1594 lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size) 1595 { 1596 struct lpfc_debugfs_nvmeio_trc *dtp; 1597 int i, state, index, skip; 1598 int len = 0; 1599 1600 state = phba->nvmeio_trc_on; 1601 1602 index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) & 1603 (phba->nvmeio_trc_size - 1); 1604 skip = phba->nvmeio_trc_output_idx; 1605 1606 len += scnprintf(buf + len, size - len, 1607 "%s IO Trace %s: next_idx %d skip %d size %d\n", 1608 (phba->nvmet_support ? "NVME" : "NVMET"), 1609 (state ? "Enabled" : "Disabled"), 1610 index, skip, phba->nvmeio_trc_size); 1611 1612 if (!phba->nvmeio_trc || state) 1613 return len; 1614 1615 /* trace MUST bhe off to continue */ 1616 1617 for (i = index; i < phba->nvmeio_trc_size; i++) { 1618 if (skip) { 1619 skip--; 1620 continue; 1621 } 1622 dtp = phba->nvmeio_trc + i; 1623 phba->nvmeio_trc_output_idx++; 1624 1625 if (!dtp->fmt) 1626 continue; 1627 1628 len += scnprintf(buf + len, size - len, dtp->fmt, 1629 dtp->data1, dtp->data2, dtp->data3); 1630 1631 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1632 phba->nvmeio_trc_output_idx = 0; 1633 len += scnprintf(buf + len, size - len, 1634 "Trace Complete\n"); 1635 goto out; 1636 } 1637 1638 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1639 len += scnprintf(buf + len, size - len, 1640 "Trace Continue (%d of %d)\n", 1641 phba->nvmeio_trc_output_idx, 1642 phba->nvmeio_trc_size); 1643 goto out; 1644 } 1645 } 1646 for (i = 0; i < index; i++) { 1647 if (skip) { 1648 skip--; 1649 continue; 1650 } 1651 dtp = phba->nvmeio_trc + i; 1652 phba->nvmeio_trc_output_idx++; 1653 1654 if (!dtp->fmt) 1655 continue; 1656 1657 len += scnprintf(buf + len, size - len, dtp->fmt, 1658 dtp->data1, dtp->data2, dtp->data3); 1659 1660 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1661 phba->nvmeio_trc_output_idx = 0; 1662 len += scnprintf(buf + len, size - len, 1663 "Trace Complete\n"); 1664 goto out; 1665 } 1666 1667 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1668 len += scnprintf(buf + len, size - len, 1669 "Trace Continue (%d of %d)\n", 1670 phba->nvmeio_trc_output_idx, 1671 phba->nvmeio_trc_size); 1672 goto out; 1673 } 1674 } 1675 1676 len += scnprintf(buf + len, size - len, 1677 "Trace Done\n"); 1678 out: 1679 return len; 1680 } 1681 1682 /** 1683 * lpfc_debugfs_hdwqstat_data - Dump I/O stats to a buffer 1684 * @vport: The vport to gather target node info from. 1685 * @buf: The buffer to dump log into. 1686 * @size: The maximum amount of data to process. 1687 * 1688 * Description: 1689 * This routine dumps the NVME + SCSI statistics associated with @vport 1690 * 1691 * Return Value: 1692 * This routine returns the amount of bytes that were dumped into @buf and will 1693 * not exceed @size. 1694 **/ 1695 static int 1696 lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size) 1697 { 1698 struct lpfc_hba *phba = vport->phba; 1699 struct lpfc_sli4_hdw_queue *qp; 1700 struct lpfc_hdwq_stat *c_stat; 1701 int i, j, len; 1702 uint32_t tot_xmt; 1703 uint32_t tot_rcv; 1704 uint32_t tot_cmpl; 1705 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 1706 1707 scnprintf(tmp, sizeof(tmp), "HDWQ Stats:\n\n"); 1708 if (strlcat(buf, tmp, size) >= size) 1709 goto buffer_done; 1710 1711 scnprintf(tmp, sizeof(tmp), "(NVME Accounting: %s) ", 1712 (phba->hdwqstat_on & 1713 (LPFC_CHECK_NVME_IO | LPFC_CHECK_NVMET_IO) ? 1714 "Enabled" : "Disabled")); 1715 if (strlcat(buf, tmp, size) >= size) 1716 goto buffer_done; 1717 1718 scnprintf(tmp, sizeof(tmp), "(SCSI Accounting: %s) ", 1719 (phba->hdwqstat_on & LPFC_CHECK_SCSI_IO ? 1720 "Enabled" : "Disabled")); 1721 if (strlcat(buf, tmp, size) >= size) 1722 goto buffer_done; 1723 1724 scnprintf(tmp, sizeof(tmp), "\n\n"); 1725 if (strlcat(buf, tmp, size) >= size) 1726 goto buffer_done; 1727 1728 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1729 qp = &phba->sli4_hba.hdwq[i]; 1730 1731 tot_rcv = 0; 1732 tot_xmt = 0; 1733 tot_cmpl = 0; 1734 1735 for_each_present_cpu(j) { 1736 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, j); 1737 1738 /* Only display for this HDWQ */ 1739 if (i != c_stat->hdwq_no) 1740 continue; 1741 1742 /* Only display non-zero counters */ 1743 if (!c_stat->xmt_io && !c_stat->cmpl_io && 1744 !c_stat->rcv_io) 1745 continue; 1746 1747 if (!tot_xmt && !tot_cmpl && !tot_rcv) { 1748 /* Print HDWQ string only the first time */ 1749 scnprintf(tmp, sizeof(tmp), "[HDWQ %d]:\t", i); 1750 if (strlcat(buf, tmp, size) >= size) 1751 goto buffer_done; 1752 } 1753 1754 tot_xmt += c_stat->xmt_io; 1755 tot_cmpl += c_stat->cmpl_io; 1756 if (phba->nvmet_support) 1757 tot_rcv += c_stat->rcv_io; 1758 1759 scnprintf(tmp, sizeof(tmp), "| [CPU %d]: ", j); 1760 if (strlcat(buf, tmp, size) >= size) 1761 goto buffer_done; 1762 1763 if (phba->nvmet_support) { 1764 scnprintf(tmp, sizeof(tmp), 1765 "XMT 0x%x CMPL 0x%x RCV 0x%x |", 1766 c_stat->xmt_io, c_stat->cmpl_io, 1767 c_stat->rcv_io); 1768 if (strlcat(buf, tmp, size) >= size) 1769 goto buffer_done; 1770 } else { 1771 scnprintf(tmp, sizeof(tmp), 1772 "XMT 0x%x CMPL 0x%x |", 1773 c_stat->xmt_io, c_stat->cmpl_io); 1774 if (strlcat(buf, tmp, size) >= size) 1775 goto buffer_done; 1776 } 1777 } 1778 1779 /* Check if nothing to display */ 1780 if (!tot_xmt && !tot_cmpl && !tot_rcv) 1781 continue; 1782 1783 scnprintf(tmp, sizeof(tmp), "\t->\t[HDWQ Total: "); 1784 if (strlcat(buf, tmp, size) >= size) 1785 goto buffer_done; 1786 1787 if (phba->nvmet_support) { 1788 scnprintf(tmp, sizeof(tmp), 1789 "XMT 0x%x CMPL 0x%x RCV 0x%x]\n\n", 1790 tot_xmt, tot_cmpl, tot_rcv); 1791 if (strlcat(buf, tmp, size) >= size) 1792 goto buffer_done; 1793 } else { 1794 scnprintf(tmp, sizeof(tmp), 1795 "XMT 0x%x CMPL 0x%x]\n\n", 1796 tot_xmt, tot_cmpl); 1797 if (strlcat(buf, tmp, size) >= size) 1798 goto buffer_done; 1799 } 1800 } 1801 1802 buffer_done: 1803 len = strnlen(buf, size); 1804 return len; 1805 } 1806 1807 #endif 1808 1809 /** 1810 * lpfc_debugfs_disc_trc - Store discovery trace log 1811 * @vport: The vport to associate this trace string with for retrieval. 1812 * @mask: Log entry classification. 1813 * @fmt: Format string to be displayed when dumping the log. 1814 * @data1: 1st data parameter to be applied to @fmt. 1815 * @data2: 2nd data parameter to be applied to @fmt. 1816 * @data3: 3rd data parameter to be applied to @fmt. 1817 * 1818 * Description: 1819 * This routine is used by the driver code to add a debugfs log entry to the 1820 * discovery trace buffer associated with @vport. Only entries with a @mask that 1821 * match the current debugfs discovery mask will be saved. Entries that do not 1822 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 1823 * printf when displaying the log. 1824 **/ 1825 inline void 1826 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 1827 uint32_t data1, uint32_t data2, uint32_t data3) 1828 { 1829 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1830 struct lpfc_debugfs_trc *dtp; 1831 int index; 1832 1833 if (!(lpfc_debugfs_mask_disc_trc & mask)) 1834 return; 1835 1836 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 1837 !vport || !vport->disc_trc) 1838 return; 1839 1840 index = atomic_inc_return(&vport->disc_trc_cnt) & 1841 (lpfc_debugfs_max_disc_trc - 1); 1842 dtp = vport->disc_trc + index; 1843 dtp->fmt = fmt; 1844 dtp->data1 = data1; 1845 dtp->data2 = data2; 1846 dtp->data3 = data3; 1847 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1848 dtp->jif = jiffies; 1849 #endif 1850 return; 1851 } 1852 1853 /** 1854 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 1855 * @phba: The phba to associate this trace string with for retrieval. 1856 * @fmt: Format string to be displayed when dumping the log. 1857 * @data1: 1st data parameter to be applied to @fmt. 1858 * @data2: 2nd data parameter to be applied to @fmt. 1859 * @data3: 3rd data parameter to be applied to @fmt. 1860 * 1861 * Description: 1862 * This routine is used by the driver code to add a debugfs log entry to the 1863 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 1864 * @data3 are used like printf when displaying the log. 1865 **/ 1866 inline void 1867 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 1868 uint32_t data1, uint32_t data2, uint32_t data3) 1869 { 1870 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1871 struct lpfc_debugfs_trc *dtp; 1872 int index; 1873 1874 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 1875 !phba || !phba->slow_ring_trc) 1876 return; 1877 1878 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 1879 (lpfc_debugfs_max_slow_ring_trc - 1); 1880 dtp = phba->slow_ring_trc + index; 1881 dtp->fmt = fmt; 1882 dtp->data1 = data1; 1883 dtp->data2 = data2; 1884 dtp->data3 = data3; 1885 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1886 dtp->jif = jiffies; 1887 #endif 1888 return; 1889 } 1890 1891 /** 1892 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log 1893 * @phba: The phba to associate this trace string with for retrieval. 1894 * @fmt: Format string to be displayed when dumping the log. 1895 * @data1: 1st data parameter to be applied to @fmt. 1896 * @data2: 2nd data parameter to be applied to @fmt. 1897 * @data3: 3rd data parameter to be applied to @fmt. 1898 * 1899 * Description: 1900 * This routine is used by the driver code to add a debugfs log entry to the 1901 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and 1902 * @data3 are used like printf when displaying the log. 1903 **/ 1904 inline void 1905 lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, 1906 uint16_t data1, uint16_t data2, uint32_t data3) 1907 { 1908 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1909 struct lpfc_debugfs_nvmeio_trc *dtp; 1910 int index; 1911 1912 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) 1913 return; 1914 1915 index = atomic_inc_return(&phba->nvmeio_trc_cnt) & 1916 (phba->nvmeio_trc_size - 1); 1917 dtp = phba->nvmeio_trc + index; 1918 dtp->fmt = fmt; 1919 dtp->data1 = data1; 1920 dtp->data2 = data2; 1921 dtp->data3 = data3; 1922 #endif 1923 } 1924 1925 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1926 /** 1927 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 1928 * @inode: The inode pointer that contains a vport pointer. 1929 * @file: The file pointer to attach the log output. 1930 * 1931 * Description: 1932 * This routine is the entry point for the debugfs open file operation. It gets 1933 * the vport from the i_private field in @inode, allocates the necessary buffer 1934 * for the log, fills the buffer from the in-memory log for this vport, and then 1935 * returns a pointer to that log in the private_data field in @file. 1936 * 1937 * Returns: 1938 * This function returns zero if successful. On error it will return a negative 1939 * error value. 1940 **/ 1941 static int 1942 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 1943 { 1944 struct lpfc_vport *vport = inode->i_private; 1945 struct lpfc_debug *debug; 1946 int size; 1947 int rc = -ENOMEM; 1948 1949 if (!lpfc_debugfs_max_disc_trc) { 1950 rc = -ENOSPC; 1951 goto out; 1952 } 1953 1954 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1955 if (!debug) 1956 goto out; 1957 1958 /* Round to page boundary */ 1959 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1960 size = PAGE_ALIGN(size); 1961 1962 debug->buffer = kmalloc(size, GFP_KERNEL); 1963 if (!debug->buffer) { 1964 kfree(debug); 1965 goto out; 1966 } 1967 1968 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 1969 file->private_data = debug; 1970 1971 rc = 0; 1972 out: 1973 return rc; 1974 } 1975 1976 /** 1977 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 1978 * @inode: The inode pointer that contains a vport pointer. 1979 * @file: The file pointer to attach the log output. 1980 * 1981 * Description: 1982 * This routine is the entry point for the debugfs open file operation. It gets 1983 * the vport from the i_private field in @inode, allocates the necessary buffer 1984 * for the log, fills the buffer from the in-memory log for this vport, and then 1985 * returns a pointer to that log in the private_data field in @file. 1986 * 1987 * Returns: 1988 * This function returns zero if successful. On error it will return a negative 1989 * error value. 1990 **/ 1991 static int 1992 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 1993 { 1994 struct lpfc_hba *phba = inode->i_private; 1995 struct lpfc_debug *debug; 1996 int size; 1997 int rc = -ENOMEM; 1998 1999 if (!lpfc_debugfs_max_slow_ring_trc) { 2000 rc = -ENOSPC; 2001 goto out; 2002 } 2003 2004 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2005 if (!debug) 2006 goto out; 2007 2008 /* Round to page boundary */ 2009 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 2010 size = PAGE_ALIGN(size); 2011 2012 debug->buffer = kmalloc(size, GFP_KERNEL); 2013 if (!debug->buffer) { 2014 kfree(debug); 2015 goto out; 2016 } 2017 2018 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 2019 file->private_data = debug; 2020 2021 rc = 0; 2022 out: 2023 return rc; 2024 } 2025 2026 /** 2027 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 2028 * @inode: The inode pointer that contains a vport pointer. 2029 * @file: The file pointer to attach the log output. 2030 * 2031 * Description: 2032 * This routine is the entry point for the debugfs open file operation. It gets 2033 * the vport from the i_private field in @inode, allocates the necessary buffer 2034 * for the log, fills the buffer from the in-memory log for this vport, and then 2035 * returns a pointer to that log in the private_data field in @file. 2036 * 2037 * Returns: 2038 * This function returns zero if successful. On error it will return a negative 2039 * error value. 2040 **/ 2041 static int 2042 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 2043 { 2044 struct lpfc_hba *phba = inode->i_private; 2045 struct lpfc_debug *debug; 2046 int rc = -ENOMEM; 2047 2048 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2049 if (!debug) 2050 goto out; 2051 2052 /* Round to page boundary */ 2053 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 2054 if (!debug->buffer) { 2055 kfree(debug); 2056 goto out; 2057 } 2058 2059 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 2060 LPFC_HBQINFO_SIZE); 2061 file->private_data = debug; 2062 2063 rc = 0; 2064 out: 2065 return rc; 2066 } 2067 2068 /** 2069 * lpfc_debugfs_multixripools_open - Open the multixripool debugfs buffer 2070 * @inode: The inode pointer that contains a hba pointer. 2071 * @file: The file pointer to attach the log output. 2072 * 2073 * Description: 2074 * This routine is the entry point for the debugfs open file operation. It gets 2075 * the hba from the i_private field in @inode, allocates the necessary buffer 2076 * for the log, fills the buffer from the in-memory log for this hba, and then 2077 * returns a pointer to that log in the private_data field in @file. 2078 * 2079 * Returns: 2080 * This function returns zero if successful. On error it will return a negative 2081 * error value. 2082 **/ 2083 static int 2084 lpfc_debugfs_multixripools_open(struct inode *inode, struct file *file) 2085 { 2086 struct lpfc_hba *phba = inode->i_private; 2087 struct lpfc_debug *debug; 2088 int rc = -ENOMEM; 2089 2090 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2091 if (!debug) 2092 goto out; 2093 2094 /* Round to page boundary */ 2095 debug->buffer = kzalloc(LPFC_DUMP_MULTIXRIPOOL_SIZE, GFP_KERNEL); 2096 if (!debug->buffer) { 2097 kfree(debug); 2098 goto out; 2099 } 2100 2101 debug->len = lpfc_debugfs_multixripools_data( 2102 phba, debug->buffer, LPFC_DUMP_MULTIXRIPOOL_SIZE); 2103 2104 debug->i_private = inode->i_private; 2105 file->private_data = debug; 2106 2107 rc = 0; 2108 out: 2109 return rc; 2110 } 2111 2112 #ifdef LPFC_HDWQ_LOCK_STAT 2113 /** 2114 * lpfc_debugfs_lockstat_open - Open the lockstat debugfs buffer 2115 * @inode: The inode pointer that contains a vport pointer. 2116 * @file: The file pointer to attach the log output. 2117 * 2118 * Description: 2119 * This routine is the entry point for the debugfs open file operation. It gets 2120 * the vport from the i_private field in @inode, allocates the necessary buffer 2121 * for the log, fills the buffer from the in-memory log for this vport, and then 2122 * returns a pointer to that log in the private_data field in @file. 2123 * 2124 * Returns: 2125 * This function returns zero if successful. On error it will return a negative 2126 * error value. 2127 **/ 2128 static int 2129 lpfc_debugfs_lockstat_open(struct inode *inode, struct file *file) 2130 { 2131 struct lpfc_hba *phba = inode->i_private; 2132 struct lpfc_debug *debug; 2133 int rc = -ENOMEM; 2134 2135 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2136 if (!debug) 2137 goto out; 2138 2139 /* Round to page boundary */ 2140 debug->buffer = kmalloc(LPFC_HDWQINFO_SIZE, GFP_KERNEL); 2141 if (!debug->buffer) { 2142 kfree(debug); 2143 goto out; 2144 } 2145 2146 debug->len = lpfc_debugfs_lockstat_data(phba, debug->buffer, 2147 LPFC_HBQINFO_SIZE); 2148 file->private_data = debug; 2149 2150 rc = 0; 2151 out: 2152 return rc; 2153 } 2154 2155 static ssize_t 2156 lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf, 2157 size_t nbytes, loff_t *ppos) 2158 { 2159 struct lpfc_debug *debug = file->private_data; 2160 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2161 struct lpfc_sli4_hdw_queue *qp; 2162 char mybuf[64]; 2163 char *pbuf; 2164 int i; 2165 2166 /* Protect copy from user */ 2167 if (!access_ok(buf, nbytes)) 2168 return -EFAULT; 2169 2170 memset(mybuf, 0, sizeof(mybuf)); 2171 2172 if (copy_from_user(mybuf, buf, nbytes)) 2173 return -EFAULT; 2174 pbuf = &mybuf[0]; 2175 2176 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2177 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2178 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2179 qp = &phba->sli4_hba.hdwq[i]; 2180 qp->lock_conflict.alloc_xri_get = 0; 2181 qp->lock_conflict.alloc_xri_put = 0; 2182 qp->lock_conflict.free_xri = 0; 2183 qp->lock_conflict.wq_access = 0; 2184 qp->lock_conflict.alloc_pvt_pool = 0; 2185 qp->lock_conflict.mv_from_pvt_pool = 0; 2186 qp->lock_conflict.mv_to_pub_pool = 0; 2187 qp->lock_conflict.mv_to_pvt_pool = 0; 2188 qp->lock_conflict.free_pvt_pool = 0; 2189 qp->lock_conflict.free_pub_pool = 0; 2190 qp->lock_conflict.wq_access = 0; 2191 } 2192 } 2193 return nbytes; 2194 } 2195 #endif 2196 2197 static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba, 2198 char *buffer, int size) 2199 { 2200 int copied = 0; 2201 struct lpfc_dmabuf *dmabuf, *next; 2202 2203 memset(buffer, 0, size); 2204 2205 spin_lock_irq(&phba->hbalock); 2206 if (phba->ras_fwlog.state != ACTIVE) { 2207 spin_unlock_irq(&phba->hbalock); 2208 return -EINVAL; 2209 } 2210 spin_unlock_irq(&phba->hbalock); 2211 2212 list_for_each_entry_safe(dmabuf, next, 2213 &phba->ras_fwlog.fwlog_buff_list, list) { 2214 /* Check if copying will go over size and a '\0' char */ 2215 if ((copied + LPFC_RAS_MAX_ENTRY_SIZE) >= (size - 1)) { 2216 memcpy(buffer + copied, dmabuf->virt, 2217 size - copied - 1); 2218 copied += size - copied - 1; 2219 break; 2220 } 2221 memcpy(buffer + copied, dmabuf->virt, LPFC_RAS_MAX_ENTRY_SIZE); 2222 copied += LPFC_RAS_MAX_ENTRY_SIZE; 2223 } 2224 return copied; 2225 } 2226 2227 static int 2228 lpfc_debugfs_ras_log_release(struct inode *inode, struct file *file) 2229 { 2230 struct lpfc_debug *debug = file->private_data; 2231 2232 vfree(debug->buffer); 2233 kfree(debug); 2234 2235 return 0; 2236 } 2237 2238 /** 2239 * lpfc_debugfs_ras_log_open - Open the RAS log debugfs buffer 2240 * @inode: The inode pointer that contains a vport pointer. 2241 * @file: The file pointer to attach the log output. 2242 * 2243 * Description: 2244 * This routine is the entry point for the debugfs open file operation. It gets 2245 * the vport from the i_private field in @inode, allocates the necessary buffer 2246 * for the log, fills the buffer from the in-memory log for this vport, and then 2247 * returns a pointer to that log in the private_data field in @file. 2248 * 2249 * Returns: 2250 * This function returns zero if successful. On error it will return a negative 2251 * error value. 2252 **/ 2253 static int 2254 lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file) 2255 { 2256 struct lpfc_hba *phba = inode->i_private; 2257 struct lpfc_debug *debug; 2258 int size; 2259 int rc = -ENOMEM; 2260 2261 spin_lock_irq(&phba->hbalock); 2262 if (phba->ras_fwlog.state != ACTIVE) { 2263 spin_unlock_irq(&phba->hbalock); 2264 rc = -EINVAL; 2265 goto out; 2266 } 2267 spin_unlock_irq(&phba->hbalock); 2268 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2269 if (!debug) 2270 goto out; 2271 2272 size = LPFC_RAS_MIN_BUFF_POST_SIZE * phba->cfg_ras_fwlog_buffsize; 2273 debug->buffer = vmalloc(size); 2274 if (!debug->buffer) 2275 goto free_debug; 2276 2277 debug->len = lpfc_debugfs_ras_log_data(phba, debug->buffer, size); 2278 if (debug->len < 0) { 2279 rc = -EINVAL; 2280 goto free_buffer; 2281 } 2282 file->private_data = debug; 2283 2284 return 0; 2285 2286 free_buffer: 2287 vfree(debug->buffer); 2288 free_debug: 2289 kfree(debug); 2290 out: 2291 return rc; 2292 } 2293 2294 /** 2295 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 2296 * @inode: The inode pointer that contains a vport pointer. 2297 * @file: The file pointer to attach the log output. 2298 * 2299 * Description: 2300 * This routine is the entry point for the debugfs open file operation. It gets 2301 * the vport from the i_private field in @inode, allocates the necessary buffer 2302 * for the log, fills the buffer from the in-memory log for this vport, and then 2303 * returns a pointer to that log in the private_data field in @file. 2304 * 2305 * Returns: 2306 * This function returns zero if successful. On error it will return a negative 2307 * error value. 2308 **/ 2309 static int 2310 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 2311 { 2312 struct lpfc_hba *phba = inode->i_private; 2313 struct lpfc_debug *debug; 2314 int rc = -ENOMEM; 2315 2316 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2317 if (!debug) 2318 goto out; 2319 2320 /* Round to page boundary */ 2321 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 2322 if (!debug->buffer) { 2323 kfree(debug); 2324 goto out; 2325 } 2326 2327 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 2328 LPFC_DUMPHBASLIM_SIZE); 2329 file->private_data = debug; 2330 2331 rc = 0; 2332 out: 2333 return rc; 2334 } 2335 2336 /** 2337 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 2338 * @inode: The inode pointer that contains a vport pointer. 2339 * @file: The file pointer to attach the log output. 2340 * 2341 * Description: 2342 * This routine is the entry point for the debugfs open file operation. It gets 2343 * the vport from the i_private field in @inode, allocates the necessary buffer 2344 * for the log, fills the buffer from the in-memory log for this vport, and then 2345 * returns a pointer to that log in the private_data field in @file. 2346 * 2347 * Returns: 2348 * This function returns zero if successful. On error it will return a negative 2349 * error value. 2350 **/ 2351 static int 2352 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 2353 { 2354 struct lpfc_hba *phba = inode->i_private; 2355 struct lpfc_debug *debug; 2356 int rc = -ENOMEM; 2357 2358 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2359 if (!debug) 2360 goto out; 2361 2362 /* Round to page boundary */ 2363 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 2364 if (!debug->buffer) { 2365 kfree(debug); 2366 goto out; 2367 } 2368 2369 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 2370 LPFC_DUMPHOSTSLIM_SIZE); 2371 file->private_data = debug; 2372 2373 rc = 0; 2374 out: 2375 return rc; 2376 } 2377 2378 static ssize_t 2379 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 2380 size_t nbytes, loff_t *ppos) 2381 { 2382 struct dentry *dent = file->f_path.dentry; 2383 struct lpfc_hba *phba = file->private_data; 2384 char cbuf[32]; 2385 uint64_t tmp = 0; 2386 int cnt = 0; 2387 2388 if (dent == phba->debug_writeGuard) 2389 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); 2390 else if (dent == phba->debug_writeApp) 2391 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); 2392 else if (dent == phba->debug_writeRef) 2393 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); 2394 else if (dent == phba->debug_readGuard) 2395 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); 2396 else if (dent == phba->debug_readApp) 2397 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); 2398 else if (dent == phba->debug_readRef) 2399 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); 2400 else if (dent == phba->debug_InjErrNPortID) 2401 cnt = scnprintf(cbuf, 32, "0x%06x\n", 2402 phba->lpfc_injerr_nportid); 2403 else if (dent == phba->debug_InjErrWWPN) { 2404 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); 2405 tmp = cpu_to_be64(tmp); 2406 cnt = scnprintf(cbuf, 32, "0x%016llx\n", tmp); 2407 } else if (dent == phba->debug_InjErrLBA) { 2408 if (phba->lpfc_injerr_lba == (sector_t)(-1)) 2409 cnt = scnprintf(cbuf, 32, "off\n"); 2410 else 2411 cnt = scnprintf(cbuf, 32, "0x%llx\n", 2412 (uint64_t) phba->lpfc_injerr_lba); 2413 } else 2414 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2415 "0547 Unknown debugfs error injection entry\n"); 2416 2417 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 2418 } 2419 2420 static ssize_t 2421 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 2422 size_t nbytes, loff_t *ppos) 2423 { 2424 struct dentry *dent = file->f_path.dentry; 2425 struct lpfc_hba *phba = file->private_data; 2426 char dstbuf[33]; 2427 uint64_t tmp = 0; 2428 int size; 2429 2430 memset(dstbuf, 0, 33); 2431 size = (nbytes < 32) ? nbytes : 32; 2432 if (copy_from_user(dstbuf, buf, size)) 2433 return 0; 2434 2435 if (dent == phba->debug_InjErrLBA) { 2436 if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f')) 2437 tmp = (uint64_t)(-1); 2438 } 2439 2440 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) 2441 return 0; 2442 2443 if (dent == phba->debug_writeGuard) 2444 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 2445 else if (dent == phba->debug_writeApp) 2446 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 2447 else if (dent == phba->debug_writeRef) 2448 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 2449 else if (dent == phba->debug_readGuard) 2450 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 2451 else if (dent == phba->debug_readApp) 2452 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 2453 else if (dent == phba->debug_readRef) 2454 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 2455 else if (dent == phba->debug_InjErrLBA) 2456 phba->lpfc_injerr_lba = (sector_t)tmp; 2457 else if (dent == phba->debug_InjErrNPortID) 2458 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 2459 else if (dent == phba->debug_InjErrWWPN) { 2460 tmp = cpu_to_be64(tmp); 2461 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); 2462 } else 2463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2464 "0548 Unknown debugfs error injection entry\n"); 2465 2466 return nbytes; 2467 } 2468 2469 static int 2470 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 2471 { 2472 return 0; 2473 } 2474 2475 /** 2476 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 2477 * @inode: The inode pointer that contains a vport pointer. 2478 * @file: The file pointer to attach the log output. 2479 * 2480 * Description: 2481 * This routine is the entry point for the debugfs open file operation. It gets 2482 * the vport from the i_private field in @inode, allocates the necessary buffer 2483 * for the log, fills the buffer from the in-memory log for this vport, and then 2484 * returns a pointer to that log in the private_data field in @file. 2485 * 2486 * Returns: 2487 * This function returns zero if successful. On error it will return a negative 2488 * error value. 2489 **/ 2490 static int 2491 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 2492 { 2493 struct lpfc_vport *vport = inode->i_private; 2494 struct lpfc_debug *debug; 2495 int rc = -ENOMEM; 2496 2497 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2498 if (!debug) 2499 goto out; 2500 2501 /* Round to page boundary */ 2502 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 2503 if (!debug->buffer) { 2504 kfree(debug); 2505 goto out; 2506 } 2507 2508 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 2509 LPFC_NODELIST_SIZE); 2510 file->private_data = debug; 2511 2512 rc = 0; 2513 out: 2514 return rc; 2515 } 2516 2517 /** 2518 * lpfc_debugfs_lseek - Seek through a debugfs file 2519 * @file: The file pointer to seek through. 2520 * @off: The offset to seek to or the amount to seek by. 2521 * @whence: Indicates how to seek. 2522 * 2523 * Description: 2524 * This routine is the entry point for the debugfs lseek file operation. The 2525 * @whence parameter indicates whether @off is the offset to directly seek to, 2526 * or if it is a value to seek forward or reverse by. This function figures out 2527 * what the new offset of the debugfs file will be and assigns that value to the 2528 * f_pos field of @file. 2529 * 2530 * Returns: 2531 * This function returns the new offset if successful and returns a negative 2532 * error if unable to process the seek. 2533 **/ 2534 static loff_t 2535 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 2536 { 2537 struct lpfc_debug *debug = file->private_data; 2538 return fixed_size_llseek(file, off, whence, debug->len); 2539 } 2540 2541 /** 2542 * lpfc_debugfs_read - Read a debugfs file 2543 * @file: The file pointer to read from. 2544 * @buf: The buffer to copy the data to. 2545 * @nbytes: The number of bytes to read. 2546 * @ppos: The position in the file to start reading from. 2547 * 2548 * Description: 2549 * This routine reads data from from the buffer indicated in the private_data 2550 * field of @file. It will start reading at @ppos and copy up to @nbytes of 2551 * data to @buf. 2552 * 2553 * Returns: 2554 * This function returns the amount of data that was read (this could be less 2555 * than @nbytes if the end of the file was reached) or a negative error value. 2556 **/ 2557 static ssize_t 2558 lpfc_debugfs_read(struct file *file, char __user *buf, 2559 size_t nbytes, loff_t *ppos) 2560 { 2561 struct lpfc_debug *debug = file->private_data; 2562 2563 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 2564 debug->len); 2565 } 2566 2567 /** 2568 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 2569 * @inode: The inode pointer that contains a vport pointer. (unused) 2570 * @file: The file pointer that contains the buffer to release. 2571 * 2572 * Description: 2573 * This routine frees the buffer that was allocated when the debugfs file was 2574 * opened. 2575 * 2576 * Returns: 2577 * This function returns zero. 2578 **/ 2579 static int 2580 lpfc_debugfs_release(struct inode *inode, struct file *file) 2581 { 2582 struct lpfc_debug *debug = file->private_data; 2583 2584 kfree(debug->buffer); 2585 kfree(debug); 2586 2587 return 0; 2588 } 2589 2590 /** 2591 * lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics 2592 * @file: The file pointer to read from. 2593 * @buf: The buffer to copy the user data from. 2594 * @nbytes: The number of bytes to get. 2595 * @ppos: The position in the file to start reading from. 2596 * 2597 * Description: 2598 * This routine clears multi-XRI pools statistics when buf contains "clear". 2599 * 2600 * Return Value: 2601 * It returns the @nbytges passing in from debugfs user space when successful. 2602 * In case of error conditions, it returns proper error code back to the user 2603 * space. 2604 **/ 2605 static ssize_t 2606 lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf, 2607 size_t nbytes, loff_t *ppos) 2608 { 2609 struct lpfc_debug *debug = file->private_data; 2610 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2611 char mybuf[64]; 2612 char *pbuf; 2613 u32 i; 2614 u32 hwq_count; 2615 struct lpfc_sli4_hdw_queue *qp; 2616 struct lpfc_multixri_pool *multixri_pool; 2617 2618 if (nbytes > 64) 2619 nbytes = 64; 2620 2621 /* Protect copy from user */ 2622 if (!access_ok(buf, nbytes)) 2623 return -EFAULT; 2624 2625 memset(mybuf, 0, sizeof(mybuf)); 2626 2627 if (copy_from_user(mybuf, buf, nbytes)) 2628 return -EFAULT; 2629 pbuf = &mybuf[0]; 2630 2631 if ((strncmp(pbuf, "clear", strlen("clear"))) == 0) { 2632 hwq_count = phba->cfg_hdw_queue; 2633 for (i = 0; i < hwq_count; i++) { 2634 qp = &phba->sli4_hba.hdwq[i]; 2635 multixri_pool = qp->p_multixri_pool; 2636 if (!multixri_pool) 2637 continue; 2638 2639 qp->empty_io_bufs = 0; 2640 multixri_pool->pbl_empty_count = 0; 2641 #ifdef LPFC_MXP_STAT 2642 multixri_pool->above_limit_count = 0; 2643 multixri_pool->below_limit_count = 0; 2644 multixri_pool->stat_max_hwm = 0; 2645 multixri_pool->local_pbl_hit_count = 0; 2646 multixri_pool->other_pbl_hit_count = 0; 2647 2648 multixri_pool->stat_pbl_count = 0; 2649 multixri_pool->stat_pvt_count = 0; 2650 multixri_pool->stat_busy_count = 0; 2651 multixri_pool->stat_snapshot_taken = 0; 2652 #endif 2653 } 2654 return strlen(pbuf); 2655 } 2656 2657 return -EINVAL; 2658 } 2659 2660 static int 2661 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 2662 { 2663 struct lpfc_vport *vport = inode->i_private; 2664 struct lpfc_debug *debug; 2665 int rc = -ENOMEM; 2666 2667 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2668 if (!debug) 2669 goto out; 2670 2671 /* Round to page boundary */ 2672 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 2673 if (!debug->buffer) { 2674 kfree(debug); 2675 goto out; 2676 } 2677 2678 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 2679 LPFC_NVMESTAT_SIZE); 2680 2681 debug->i_private = inode->i_private; 2682 file->private_data = debug; 2683 2684 rc = 0; 2685 out: 2686 return rc; 2687 } 2688 2689 static ssize_t 2690 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 2691 size_t nbytes, loff_t *ppos) 2692 { 2693 struct lpfc_debug *debug = file->private_data; 2694 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2695 struct lpfc_hba *phba = vport->phba; 2696 struct lpfc_nvmet_tgtport *tgtp; 2697 char mybuf[64]; 2698 char *pbuf; 2699 2700 if (!phba->targetport) 2701 return -ENXIO; 2702 2703 if (nbytes > 64) 2704 nbytes = 64; 2705 2706 memset(mybuf, 0, sizeof(mybuf)); 2707 2708 if (copy_from_user(mybuf, buf, nbytes)) 2709 return -EFAULT; 2710 pbuf = &mybuf[0]; 2711 2712 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2713 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2714 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2715 atomic_set(&tgtp->rcv_ls_req_in, 0); 2716 atomic_set(&tgtp->rcv_ls_req_out, 0); 2717 atomic_set(&tgtp->rcv_ls_req_drop, 0); 2718 atomic_set(&tgtp->xmt_ls_abort, 0); 2719 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 2720 atomic_set(&tgtp->xmt_ls_rsp, 0); 2721 atomic_set(&tgtp->xmt_ls_drop, 0); 2722 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 2723 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 2724 2725 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 2726 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 2727 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 2728 atomic_set(&tgtp->xmt_fcp_drop, 0); 2729 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 2730 atomic_set(&tgtp->xmt_fcp_read, 0); 2731 atomic_set(&tgtp->xmt_fcp_write, 0); 2732 atomic_set(&tgtp->xmt_fcp_rsp, 0); 2733 atomic_set(&tgtp->xmt_fcp_release, 0); 2734 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 2735 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 2736 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 2737 2738 atomic_set(&tgtp->xmt_fcp_abort, 0); 2739 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 2740 atomic_set(&tgtp->xmt_abort_sol, 0); 2741 atomic_set(&tgtp->xmt_abort_unsol, 0); 2742 atomic_set(&tgtp->xmt_abort_rsp, 0); 2743 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 2744 } 2745 return nbytes; 2746 } 2747 2748 static int 2749 lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file) 2750 { 2751 struct lpfc_vport *vport = inode->i_private; 2752 struct lpfc_debug *debug; 2753 int rc = -ENOMEM; 2754 2755 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2756 if (!debug) 2757 goto out; 2758 2759 /* Round to page boundary */ 2760 debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL); 2761 if (!debug->buffer) { 2762 kfree(debug); 2763 goto out; 2764 } 2765 2766 debug->len = lpfc_debugfs_scsistat_data(vport, debug->buffer, 2767 LPFC_SCSISTAT_SIZE); 2768 2769 debug->i_private = inode->i_private; 2770 file->private_data = debug; 2771 2772 rc = 0; 2773 out: 2774 return rc; 2775 } 2776 2777 static ssize_t 2778 lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf, 2779 size_t nbytes, loff_t *ppos) 2780 { 2781 struct lpfc_debug *debug = file->private_data; 2782 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2783 struct lpfc_hba *phba = vport->phba; 2784 char mybuf[6] = {0}; 2785 int i; 2786 2787 /* Protect copy from user */ 2788 if (!access_ok(buf, nbytes)) 2789 return -EFAULT; 2790 2791 if (copy_from_user(mybuf, buf, (nbytes >= sizeof(mybuf)) ? 2792 (sizeof(mybuf) - 1) : nbytes)) 2793 return -EFAULT; 2794 2795 if ((strncmp(&mybuf[0], "reset", strlen("reset")) == 0) || 2796 (strncmp(&mybuf[0], "zero", strlen("zero")) == 0)) { 2797 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2798 memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0, 2799 sizeof(phba->sli4_hba.hdwq[i].scsi_cstat)); 2800 } 2801 } 2802 2803 return nbytes; 2804 } 2805 2806 static int 2807 lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file) 2808 { 2809 struct lpfc_vport *vport = inode->i_private; 2810 struct lpfc_debug *debug; 2811 int rc = -ENOMEM; 2812 2813 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2814 if (!debug) 2815 goto out; 2816 2817 /* Round to page boundary */ 2818 debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL); 2819 if (!debug->buffer) { 2820 kfree(debug); 2821 goto out; 2822 } 2823 2824 debug->len = lpfc_debugfs_ioktime_data(vport, debug->buffer, 2825 LPFC_IOKTIME_SIZE); 2826 2827 debug->i_private = inode->i_private; 2828 file->private_data = debug; 2829 2830 rc = 0; 2831 out: 2832 return rc; 2833 } 2834 2835 static ssize_t 2836 lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf, 2837 size_t nbytes, loff_t *ppos) 2838 { 2839 struct lpfc_debug *debug = file->private_data; 2840 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2841 struct lpfc_hba *phba = vport->phba; 2842 char mybuf[64]; 2843 char *pbuf; 2844 2845 if (nbytes > 64) 2846 nbytes = 64; 2847 2848 memset(mybuf, 0, sizeof(mybuf)); 2849 2850 if (copy_from_user(mybuf, buf, nbytes)) 2851 return -EFAULT; 2852 pbuf = &mybuf[0]; 2853 2854 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2855 phba->ktime_data_samples = 0; 2856 phba->ktime_status_samples = 0; 2857 phba->ktime_seg1_total = 0; 2858 phba->ktime_seg1_max = 0; 2859 phba->ktime_seg1_min = 0xffffffff; 2860 phba->ktime_seg2_total = 0; 2861 phba->ktime_seg2_max = 0; 2862 phba->ktime_seg2_min = 0xffffffff; 2863 phba->ktime_seg3_total = 0; 2864 phba->ktime_seg3_max = 0; 2865 phba->ktime_seg3_min = 0xffffffff; 2866 phba->ktime_seg4_total = 0; 2867 phba->ktime_seg4_max = 0; 2868 phba->ktime_seg4_min = 0xffffffff; 2869 phba->ktime_seg5_total = 0; 2870 phba->ktime_seg5_max = 0; 2871 phba->ktime_seg5_min = 0xffffffff; 2872 phba->ktime_seg6_total = 0; 2873 phba->ktime_seg6_max = 0; 2874 phba->ktime_seg6_min = 0xffffffff; 2875 phba->ktime_seg7_total = 0; 2876 phba->ktime_seg7_max = 0; 2877 phba->ktime_seg7_min = 0xffffffff; 2878 phba->ktime_seg8_total = 0; 2879 phba->ktime_seg8_max = 0; 2880 phba->ktime_seg8_min = 0xffffffff; 2881 phba->ktime_seg9_total = 0; 2882 phba->ktime_seg9_max = 0; 2883 phba->ktime_seg9_min = 0xffffffff; 2884 phba->ktime_seg10_total = 0; 2885 phba->ktime_seg10_max = 0; 2886 phba->ktime_seg10_min = 0xffffffff; 2887 2888 phba->ktime_on = 1; 2889 return strlen(pbuf); 2890 } else if ((strncmp(pbuf, "off", 2891 sizeof("off") - 1) == 0)) { 2892 phba->ktime_on = 0; 2893 return strlen(pbuf); 2894 } else if ((strncmp(pbuf, "zero", 2895 sizeof("zero") - 1) == 0)) { 2896 phba->ktime_data_samples = 0; 2897 phba->ktime_status_samples = 0; 2898 phba->ktime_seg1_total = 0; 2899 phba->ktime_seg1_max = 0; 2900 phba->ktime_seg1_min = 0xffffffff; 2901 phba->ktime_seg2_total = 0; 2902 phba->ktime_seg2_max = 0; 2903 phba->ktime_seg2_min = 0xffffffff; 2904 phba->ktime_seg3_total = 0; 2905 phba->ktime_seg3_max = 0; 2906 phba->ktime_seg3_min = 0xffffffff; 2907 phba->ktime_seg4_total = 0; 2908 phba->ktime_seg4_max = 0; 2909 phba->ktime_seg4_min = 0xffffffff; 2910 phba->ktime_seg5_total = 0; 2911 phba->ktime_seg5_max = 0; 2912 phba->ktime_seg5_min = 0xffffffff; 2913 phba->ktime_seg6_total = 0; 2914 phba->ktime_seg6_max = 0; 2915 phba->ktime_seg6_min = 0xffffffff; 2916 phba->ktime_seg7_total = 0; 2917 phba->ktime_seg7_max = 0; 2918 phba->ktime_seg7_min = 0xffffffff; 2919 phba->ktime_seg8_total = 0; 2920 phba->ktime_seg8_max = 0; 2921 phba->ktime_seg8_min = 0xffffffff; 2922 phba->ktime_seg9_total = 0; 2923 phba->ktime_seg9_max = 0; 2924 phba->ktime_seg9_min = 0xffffffff; 2925 phba->ktime_seg10_total = 0; 2926 phba->ktime_seg10_max = 0; 2927 phba->ktime_seg10_min = 0xffffffff; 2928 return strlen(pbuf); 2929 } 2930 return -EINVAL; 2931 } 2932 2933 static int 2934 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2935 { 2936 struct lpfc_hba *phba = inode->i_private; 2937 struct lpfc_debug *debug; 2938 int rc = -ENOMEM; 2939 2940 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2941 if (!debug) 2942 goto out; 2943 2944 /* Round to page boundary */ 2945 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2946 if (!debug->buffer) { 2947 kfree(debug); 2948 goto out; 2949 } 2950 2951 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2952 LPFC_NVMEIO_TRC_SIZE); 2953 2954 debug->i_private = inode->i_private; 2955 file->private_data = debug; 2956 2957 rc = 0; 2958 out: 2959 return rc; 2960 } 2961 2962 static ssize_t 2963 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2964 size_t nbytes, loff_t *ppos) 2965 { 2966 struct lpfc_debug *debug = file->private_data; 2967 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2968 int i; 2969 unsigned long sz; 2970 char mybuf[64]; 2971 char *pbuf; 2972 2973 if (nbytes > 64) 2974 nbytes = 64; 2975 2976 memset(mybuf, 0, sizeof(mybuf)); 2977 2978 if (copy_from_user(mybuf, buf, nbytes)) 2979 return -EFAULT; 2980 pbuf = &mybuf[0]; 2981 2982 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2983 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2984 "0570 nvmeio_trc_off\n"); 2985 phba->nvmeio_trc_output_idx = 0; 2986 phba->nvmeio_trc_on = 0; 2987 return strlen(pbuf); 2988 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2989 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2990 "0571 nvmeio_trc_on\n"); 2991 phba->nvmeio_trc_output_idx = 0; 2992 phba->nvmeio_trc_on = 1; 2993 return strlen(pbuf); 2994 } 2995 2996 /* We must be off to allocate the trace buffer */ 2997 if (phba->nvmeio_trc_on != 0) 2998 return -EINVAL; 2999 3000 /* If not on or off, the parameter is the trace buffer size */ 3001 i = kstrtoul(pbuf, 0, &sz); 3002 if (i) 3003 return -EINVAL; 3004 phba->nvmeio_trc_size = (uint32_t)sz; 3005 3006 /* It must be a power of 2 - round down */ 3007 i = 0; 3008 while (sz > 1) { 3009 sz = sz >> 1; 3010 i++; 3011 } 3012 sz = (1 << i); 3013 if (phba->nvmeio_trc_size != sz) 3014 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3015 "0572 nvmeio_trc_size changed to %ld\n", 3016 sz); 3017 phba->nvmeio_trc_size = (uint32_t)sz; 3018 3019 /* If one previously exists, free it */ 3020 kfree(phba->nvmeio_trc); 3021 3022 /* Allocate new trace buffer and initialize */ 3023 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 3024 sz), GFP_KERNEL); 3025 if (!phba->nvmeio_trc) { 3026 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3027 "0573 Cannot create debugfs " 3028 "nvmeio_trc buffer\n"); 3029 return -ENOMEM; 3030 } 3031 atomic_set(&phba->nvmeio_trc_cnt, 0); 3032 phba->nvmeio_trc_on = 0; 3033 phba->nvmeio_trc_output_idx = 0; 3034 3035 return strlen(pbuf); 3036 } 3037 3038 static int 3039 lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file) 3040 { 3041 struct lpfc_vport *vport = inode->i_private; 3042 struct lpfc_debug *debug; 3043 int rc = -ENOMEM; 3044 3045 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3046 if (!debug) 3047 goto out; 3048 3049 /* Round to page boundary */ 3050 debug->buffer = kcalloc(1, LPFC_SCSISTAT_SIZE, GFP_KERNEL); 3051 if (!debug->buffer) { 3052 kfree(debug); 3053 goto out; 3054 } 3055 3056 debug->len = lpfc_debugfs_hdwqstat_data(vport, debug->buffer, 3057 LPFC_SCSISTAT_SIZE); 3058 3059 debug->i_private = inode->i_private; 3060 file->private_data = debug; 3061 3062 rc = 0; 3063 out: 3064 return rc; 3065 } 3066 3067 static ssize_t 3068 lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf, 3069 size_t nbytes, loff_t *ppos) 3070 { 3071 struct lpfc_debug *debug = file->private_data; 3072 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 3073 struct lpfc_hba *phba = vport->phba; 3074 struct lpfc_hdwq_stat *c_stat; 3075 char mybuf[64]; 3076 char *pbuf; 3077 int i; 3078 3079 if (nbytes > 64) 3080 nbytes = 64; 3081 3082 memset(mybuf, 0, sizeof(mybuf)); 3083 3084 if (copy_from_user(mybuf, buf, nbytes)) 3085 return -EFAULT; 3086 pbuf = &mybuf[0]; 3087 3088 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 3089 if (phba->nvmet_support) 3090 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3091 else 3092 phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO | 3093 LPFC_CHECK_SCSI_IO); 3094 return strlen(pbuf); 3095 } else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) { 3096 if (phba->nvmet_support) 3097 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3098 else 3099 phba->hdwqstat_on |= LPFC_CHECK_NVME_IO; 3100 return strlen(pbuf); 3101 } else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) { 3102 if (!phba->nvmet_support) 3103 phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO; 3104 return strlen(pbuf); 3105 } else if ((strncmp(pbuf, "nvme_off", sizeof("nvme_off") - 1) == 0)) { 3106 phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO | 3107 LPFC_CHECK_NVMET_IO); 3108 return strlen(pbuf); 3109 } else if ((strncmp(pbuf, "scsi_off", sizeof("scsi_off") - 1) == 0)) { 3110 phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO; 3111 return strlen(pbuf); 3112 } else if ((strncmp(pbuf, "off", 3113 sizeof("off") - 1) == 0)) { 3114 phba->hdwqstat_on = LPFC_CHECK_OFF; 3115 return strlen(pbuf); 3116 } else if ((strncmp(pbuf, "zero", 3117 sizeof("zero") - 1) == 0)) { 3118 for_each_present_cpu(i) { 3119 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i); 3120 c_stat->xmt_io = 0; 3121 c_stat->cmpl_io = 0; 3122 c_stat->rcv_io = 0; 3123 } 3124 return strlen(pbuf); 3125 } 3126 return -EINVAL; 3127 } 3128 3129 /* 3130 * --------------------------------- 3131 * iDiag debugfs file access methods 3132 * --------------------------------- 3133 * 3134 * All access methods are through the proper SLI4 PCI function's debugfs 3135 * iDiag directory: 3136 * 3137 * /sys/kernel/debug/lpfc/fn<#>/iDiag 3138 */ 3139 3140 /** 3141 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 3142 * @buf: The pointer to the user space buffer. 3143 * @nbytes: The number of bytes in the user space buffer. 3144 * @idiag_cmd: pointer to the idiag command struct. 3145 * 3146 * This routine reads data from debugfs user space buffer and parses the 3147 * buffer for getting the idiag command and arguments. The while space in 3148 * between the set of data is used as the parsing separator. 3149 * 3150 * This routine returns 0 when successful, it returns proper error code 3151 * back to the user space in error conditions. 3152 */ 3153 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 3154 struct lpfc_idiag_cmd *idiag_cmd) 3155 { 3156 char mybuf[64]; 3157 char *pbuf, *step_str; 3158 int i; 3159 size_t bsize; 3160 3161 memset(mybuf, 0, sizeof(mybuf)); 3162 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 3163 bsize = min(nbytes, (sizeof(mybuf)-1)); 3164 3165 if (copy_from_user(mybuf, buf, bsize)) 3166 return -EFAULT; 3167 pbuf = &mybuf[0]; 3168 step_str = strsep(&pbuf, "\t "); 3169 3170 /* The opcode must present */ 3171 if (!step_str) 3172 return -EINVAL; 3173 3174 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 3175 if (idiag_cmd->opcode == 0) 3176 return -EINVAL; 3177 3178 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 3179 step_str = strsep(&pbuf, "\t "); 3180 if (!step_str) 3181 return i; 3182 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 3183 } 3184 return i; 3185 } 3186 3187 /** 3188 * lpfc_idiag_open - idiag open debugfs 3189 * @inode: The inode pointer that contains a pointer to phba. 3190 * @file: The file pointer to attach the file operation. 3191 * 3192 * Description: 3193 * This routine is the entry point for the debugfs open file operation. It 3194 * gets the reference to phba from the i_private field in @inode, it then 3195 * allocates buffer for the file operation, performs the necessary PCI config 3196 * space read into the allocated buffer according to the idiag user command 3197 * setup, and then returns a pointer to buffer in the private_data field in 3198 * @file. 3199 * 3200 * Returns: 3201 * This function returns zero if successful. On error it will return an 3202 * negative error value. 3203 **/ 3204 static int 3205 lpfc_idiag_open(struct inode *inode, struct file *file) 3206 { 3207 struct lpfc_debug *debug; 3208 3209 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3210 if (!debug) 3211 return -ENOMEM; 3212 3213 debug->i_private = inode->i_private; 3214 debug->buffer = NULL; 3215 file->private_data = debug; 3216 3217 return 0; 3218 } 3219 3220 /** 3221 * lpfc_idiag_release - Release idiag access file operation 3222 * @inode: The inode pointer that contains a vport pointer. (unused) 3223 * @file: The file pointer that contains the buffer to release. 3224 * 3225 * Description: 3226 * This routine is the generic release routine for the idiag access file 3227 * operation, it frees the buffer that was allocated when the debugfs file 3228 * was opened. 3229 * 3230 * Returns: 3231 * This function returns zero. 3232 **/ 3233 static int 3234 lpfc_idiag_release(struct inode *inode, struct file *file) 3235 { 3236 struct lpfc_debug *debug = file->private_data; 3237 3238 /* Free the buffers to the file operation */ 3239 kfree(debug->buffer); 3240 kfree(debug); 3241 3242 return 0; 3243 } 3244 3245 /** 3246 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 3247 * @inode: The inode pointer that contains a vport pointer. (unused) 3248 * @file: The file pointer that contains the buffer to release. 3249 * 3250 * Description: 3251 * This routine frees the buffer that was allocated when the debugfs file 3252 * was opened. It also reset the fields in the idiag command struct in the 3253 * case of command for write operation. 3254 * 3255 * Returns: 3256 * This function returns zero. 3257 **/ 3258 static int 3259 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 3260 { 3261 struct lpfc_debug *debug = file->private_data; 3262 3263 if (debug->op == LPFC_IDIAG_OP_WR) { 3264 switch (idiag.cmd.opcode) { 3265 case LPFC_IDIAG_CMD_PCICFG_WR: 3266 case LPFC_IDIAG_CMD_PCICFG_ST: 3267 case LPFC_IDIAG_CMD_PCICFG_CL: 3268 case LPFC_IDIAG_CMD_QUEACC_WR: 3269 case LPFC_IDIAG_CMD_QUEACC_ST: 3270 case LPFC_IDIAG_CMD_QUEACC_CL: 3271 memset(&idiag, 0, sizeof(idiag)); 3272 break; 3273 default: 3274 break; 3275 } 3276 } 3277 3278 /* Free the buffers to the file operation */ 3279 kfree(debug->buffer); 3280 kfree(debug); 3281 3282 return 0; 3283 } 3284 3285 /** 3286 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 3287 * @file: The file pointer to read from. 3288 * @buf: The buffer to copy the data to. 3289 * @nbytes: The number of bytes to read. 3290 * @ppos: The position in the file to start reading from. 3291 * 3292 * Description: 3293 * This routine reads data from the @phba pci config space according to the 3294 * idiag command, and copies to user @buf. Depending on the PCI config space 3295 * read command setup, it does either a single register read of a byte 3296 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 3297 * registers from the 4K extended PCI config space. 3298 * 3299 * Returns: 3300 * This function returns the amount of data that was read (this could be less 3301 * than @nbytes if the end of the file was reached) or a negative error value. 3302 **/ 3303 static ssize_t 3304 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 3305 loff_t *ppos) 3306 { 3307 struct lpfc_debug *debug = file->private_data; 3308 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3309 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 3310 int where, count; 3311 char *pbuffer; 3312 struct pci_dev *pdev; 3313 uint32_t u32val; 3314 uint16_t u16val; 3315 uint8_t u8val; 3316 3317 pdev = phba->pcidev; 3318 if (!pdev) 3319 return 0; 3320 3321 /* This is a user read operation */ 3322 debug->op = LPFC_IDIAG_OP_RD; 3323 3324 if (!debug->buffer) 3325 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 3326 if (!debug->buffer) 3327 return 0; 3328 pbuffer = debug->buffer; 3329 3330 if (*ppos) 3331 return 0; 3332 3333 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3334 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3335 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3336 } else 3337 return 0; 3338 3339 /* Read single PCI config space register */ 3340 switch (count) { 3341 case SIZE_U8: /* byte (8 bits) */ 3342 pci_read_config_byte(pdev, where, &u8val); 3343 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3344 "%03x: %02x\n", where, u8val); 3345 break; 3346 case SIZE_U16: /* word (16 bits) */ 3347 pci_read_config_word(pdev, where, &u16val); 3348 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3349 "%03x: %04x\n", where, u16val); 3350 break; 3351 case SIZE_U32: /* double word (32 bits) */ 3352 pci_read_config_dword(pdev, where, &u32val); 3353 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3354 "%03x: %08x\n", where, u32val); 3355 break; 3356 case LPFC_PCI_CFG_BROWSE: /* browse all */ 3357 goto pcicfg_browse; 3358 break; 3359 default: 3360 /* illegal count */ 3361 len = 0; 3362 break; 3363 } 3364 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3365 3366 pcicfg_browse: 3367 3368 /* Browse all PCI config space registers */ 3369 offset_label = idiag.offset.last_rd; 3370 offset = offset_label; 3371 3372 /* Read PCI config space */ 3373 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3374 "%03x: ", offset_label); 3375 while (index > 0) { 3376 pci_read_config_dword(pdev, offset, &u32val); 3377 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3378 "%08x ", u32val); 3379 offset += sizeof(uint32_t); 3380 if (offset >= LPFC_PCI_CFG_SIZE) { 3381 len += scnprintf(pbuffer+len, 3382 LPFC_PCI_CFG_SIZE-len, "\n"); 3383 break; 3384 } 3385 index -= sizeof(uint32_t); 3386 if (!index) 3387 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3388 "\n"); 3389 else if (!(index % (8 * sizeof(uint32_t)))) { 3390 offset_label += (8 * sizeof(uint32_t)); 3391 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3392 "\n%03x: ", offset_label); 3393 } 3394 } 3395 3396 /* Set up the offset for next portion of pci cfg read */ 3397 if (index == 0) { 3398 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 3399 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 3400 idiag.offset.last_rd = 0; 3401 } else 3402 idiag.offset.last_rd = 0; 3403 3404 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3405 } 3406 3407 /** 3408 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 3409 * @file: The file pointer to read from. 3410 * @buf: The buffer to copy the user data from. 3411 * @nbytes: The number of bytes to get. 3412 * @ppos: The position in the file to start reading from. 3413 * 3414 * This routine get the debugfs idiag command struct from user space and 3415 * then perform the syntax check for PCI config space read or write command 3416 * accordingly. In the case of PCI config space read command, it sets up 3417 * the command in the idiag command struct for the debugfs read operation. 3418 * In the case of PCI config space write operation, it executes the write 3419 * operation into the PCI config space accordingly. 3420 * 3421 * It returns the @nbytges passing in from debugfs user space when successful. 3422 * In case of error conditions, it returns proper error code back to the user 3423 * space. 3424 */ 3425 static ssize_t 3426 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 3427 size_t nbytes, loff_t *ppos) 3428 { 3429 struct lpfc_debug *debug = file->private_data; 3430 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3431 uint32_t where, value, count; 3432 uint32_t u32val; 3433 uint16_t u16val; 3434 uint8_t u8val; 3435 struct pci_dev *pdev; 3436 int rc; 3437 3438 pdev = phba->pcidev; 3439 if (!pdev) 3440 return -EFAULT; 3441 3442 /* This is a user write operation */ 3443 debug->op = LPFC_IDIAG_OP_WR; 3444 3445 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3446 if (rc < 0) 3447 return rc; 3448 3449 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3450 /* Sanity check on PCI config read command line arguments */ 3451 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 3452 goto error_out; 3453 /* Read command from PCI config space, set up command fields */ 3454 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3455 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3456 if (count == LPFC_PCI_CFG_BROWSE) { 3457 if (where % sizeof(uint32_t)) 3458 goto error_out; 3459 /* Starting offset to browse */ 3460 idiag.offset.last_rd = where; 3461 } else if ((count != sizeof(uint8_t)) && 3462 (count != sizeof(uint16_t)) && 3463 (count != sizeof(uint32_t))) 3464 goto error_out; 3465 if (count == sizeof(uint8_t)) { 3466 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3467 goto error_out; 3468 if (where % sizeof(uint8_t)) 3469 goto error_out; 3470 } 3471 if (count == sizeof(uint16_t)) { 3472 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3473 goto error_out; 3474 if (where % sizeof(uint16_t)) 3475 goto error_out; 3476 } 3477 if (count == sizeof(uint32_t)) { 3478 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3479 goto error_out; 3480 if (where % sizeof(uint32_t)) 3481 goto error_out; 3482 } 3483 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 3484 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 3485 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3486 /* Sanity check on PCI config write command line arguments */ 3487 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 3488 goto error_out; 3489 /* Write command to PCI config space, read-modify-write */ 3490 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3491 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3492 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 3493 /* Sanity checks */ 3494 if ((count != sizeof(uint8_t)) && 3495 (count != sizeof(uint16_t)) && 3496 (count != sizeof(uint32_t))) 3497 goto error_out; 3498 if (count == sizeof(uint8_t)) { 3499 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3500 goto error_out; 3501 if (where % sizeof(uint8_t)) 3502 goto error_out; 3503 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3504 pci_write_config_byte(pdev, where, 3505 (uint8_t)value); 3506 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3507 rc = pci_read_config_byte(pdev, where, &u8val); 3508 if (!rc) { 3509 u8val |= (uint8_t)value; 3510 pci_write_config_byte(pdev, where, 3511 u8val); 3512 } 3513 } 3514 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3515 rc = pci_read_config_byte(pdev, where, &u8val); 3516 if (!rc) { 3517 u8val &= (uint8_t)(~value); 3518 pci_write_config_byte(pdev, where, 3519 u8val); 3520 } 3521 } 3522 } 3523 if (count == sizeof(uint16_t)) { 3524 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3525 goto error_out; 3526 if (where % sizeof(uint16_t)) 3527 goto error_out; 3528 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3529 pci_write_config_word(pdev, where, 3530 (uint16_t)value); 3531 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3532 rc = pci_read_config_word(pdev, where, &u16val); 3533 if (!rc) { 3534 u16val |= (uint16_t)value; 3535 pci_write_config_word(pdev, where, 3536 u16val); 3537 } 3538 } 3539 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3540 rc = pci_read_config_word(pdev, where, &u16val); 3541 if (!rc) { 3542 u16val &= (uint16_t)(~value); 3543 pci_write_config_word(pdev, where, 3544 u16val); 3545 } 3546 } 3547 } 3548 if (count == sizeof(uint32_t)) { 3549 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3550 goto error_out; 3551 if (where % sizeof(uint32_t)) 3552 goto error_out; 3553 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3554 pci_write_config_dword(pdev, where, value); 3555 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3556 rc = pci_read_config_dword(pdev, where, 3557 &u32val); 3558 if (!rc) { 3559 u32val |= value; 3560 pci_write_config_dword(pdev, where, 3561 u32val); 3562 } 3563 } 3564 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3565 rc = pci_read_config_dword(pdev, where, 3566 &u32val); 3567 if (!rc) { 3568 u32val &= ~value; 3569 pci_write_config_dword(pdev, where, 3570 u32val); 3571 } 3572 } 3573 } 3574 } else 3575 /* All other opecodes are illegal for now */ 3576 goto error_out; 3577 3578 return nbytes; 3579 error_out: 3580 memset(&idiag, 0, sizeof(idiag)); 3581 return -EINVAL; 3582 } 3583 3584 /** 3585 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 3586 * @file: The file pointer to read from. 3587 * @buf: The buffer to copy the data to. 3588 * @nbytes: The number of bytes to read. 3589 * @ppos: The position in the file to start reading from. 3590 * 3591 * Description: 3592 * This routine reads data from the @phba pci bar memory mapped space 3593 * according to the idiag command, and copies to user @buf. 3594 * 3595 * Returns: 3596 * This function returns the amount of data that was read (this could be less 3597 * than @nbytes if the end of the file was reached) or a negative error value. 3598 **/ 3599 static ssize_t 3600 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 3601 loff_t *ppos) 3602 { 3603 struct lpfc_debug *debug = file->private_data; 3604 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3605 int offset_label, offset, offset_run, len = 0, index; 3606 int bar_num, acc_range, bar_size; 3607 char *pbuffer; 3608 void __iomem *mem_mapped_bar; 3609 uint32_t if_type; 3610 struct pci_dev *pdev; 3611 uint32_t u32val; 3612 3613 pdev = phba->pcidev; 3614 if (!pdev) 3615 return 0; 3616 3617 /* This is a user read operation */ 3618 debug->op = LPFC_IDIAG_OP_RD; 3619 3620 if (!debug->buffer) 3621 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 3622 if (!debug->buffer) 3623 return 0; 3624 pbuffer = debug->buffer; 3625 3626 if (*ppos) 3627 return 0; 3628 3629 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3630 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3631 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3632 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3633 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3634 } else 3635 return 0; 3636 3637 if (acc_range == 0) 3638 return 0; 3639 3640 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3641 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3642 if (bar_num == IDIAG_BARACC_BAR_0) 3643 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3644 else if (bar_num == IDIAG_BARACC_BAR_1) 3645 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3646 else if (bar_num == IDIAG_BARACC_BAR_2) 3647 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3648 else 3649 return 0; 3650 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3651 if (bar_num == IDIAG_BARACC_BAR_0) 3652 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3653 else 3654 return 0; 3655 } else 3656 return 0; 3657 3658 /* Read single PCI bar space register */ 3659 if (acc_range == SINGLE_WORD) { 3660 offset_run = offset; 3661 u32val = readl(mem_mapped_bar + offset_run); 3662 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3663 "%05x: %08x\n", offset_run, u32val); 3664 } else 3665 goto baracc_browse; 3666 3667 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3668 3669 baracc_browse: 3670 3671 /* Browse all PCI bar space registers */ 3672 offset_label = idiag.offset.last_rd; 3673 offset_run = offset_label; 3674 3675 /* Read PCI bar memory mapped space */ 3676 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3677 "%05x: ", offset_label); 3678 index = LPFC_PCI_BAR_RD_SIZE; 3679 while (index > 0) { 3680 u32val = readl(mem_mapped_bar + offset_run); 3681 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3682 "%08x ", u32val); 3683 offset_run += sizeof(uint32_t); 3684 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3685 if (offset_run >= bar_size) { 3686 len += scnprintf(pbuffer+len, 3687 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3688 break; 3689 } 3690 } else { 3691 if (offset_run >= offset + 3692 (acc_range * sizeof(uint32_t))) { 3693 len += scnprintf(pbuffer+len, 3694 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3695 break; 3696 } 3697 } 3698 index -= sizeof(uint32_t); 3699 if (!index) 3700 len += scnprintf(pbuffer+len, 3701 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3702 else if (!(index % (8 * sizeof(uint32_t)))) { 3703 offset_label += (8 * sizeof(uint32_t)); 3704 len += scnprintf(pbuffer+len, 3705 LPFC_PCI_BAR_RD_BUF_SIZE-len, 3706 "\n%05x: ", offset_label); 3707 } 3708 } 3709 3710 /* Set up the offset for next portion of pci bar read */ 3711 if (index == 0) { 3712 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 3713 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3714 if (idiag.offset.last_rd >= bar_size) 3715 idiag.offset.last_rd = 0; 3716 } else { 3717 if (offset_run >= offset + 3718 (acc_range * sizeof(uint32_t))) 3719 idiag.offset.last_rd = offset; 3720 } 3721 } else { 3722 if (acc_range == LPFC_PCI_BAR_BROWSE) 3723 idiag.offset.last_rd = 0; 3724 else 3725 idiag.offset.last_rd = offset; 3726 } 3727 3728 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3729 } 3730 3731 /** 3732 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 3733 * @file: The file pointer to read from. 3734 * @buf: The buffer to copy the user data from. 3735 * @nbytes: The number of bytes to get. 3736 * @ppos: The position in the file to start reading from. 3737 * 3738 * This routine get the debugfs idiag command struct from user space and 3739 * then perform the syntax check for PCI bar memory mapped space read or 3740 * write command accordingly. In the case of PCI bar memory mapped space 3741 * read command, it sets up the command in the idiag command struct for 3742 * the debugfs read operation. In the case of PCI bar memorpy mapped space 3743 * write operation, it executes the write operation into the PCI bar memory 3744 * mapped space accordingly. 3745 * 3746 * It returns the @nbytges passing in from debugfs user space when successful. 3747 * In case of error conditions, it returns proper error code back to the user 3748 * space. 3749 */ 3750 static ssize_t 3751 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 3752 size_t nbytes, loff_t *ppos) 3753 { 3754 struct lpfc_debug *debug = file->private_data; 3755 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3756 uint32_t bar_num, bar_size, offset, value, acc_range; 3757 struct pci_dev *pdev; 3758 void __iomem *mem_mapped_bar; 3759 uint32_t if_type; 3760 uint32_t u32val; 3761 int rc; 3762 3763 pdev = phba->pcidev; 3764 if (!pdev) 3765 return -EFAULT; 3766 3767 /* This is a user write operation */ 3768 debug->op = LPFC_IDIAG_OP_WR; 3769 3770 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3771 if (rc < 0) 3772 return rc; 3773 3774 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3775 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3776 3777 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3778 if ((bar_num != IDIAG_BARACC_BAR_0) && 3779 (bar_num != IDIAG_BARACC_BAR_1) && 3780 (bar_num != IDIAG_BARACC_BAR_2)) 3781 goto error_out; 3782 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3783 if (bar_num != IDIAG_BARACC_BAR_0) 3784 goto error_out; 3785 } else 3786 goto error_out; 3787 3788 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3789 if (bar_num == IDIAG_BARACC_BAR_0) { 3790 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3791 LPFC_PCI_IF0_BAR0_SIZE; 3792 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3793 } else if (bar_num == IDIAG_BARACC_BAR_1) { 3794 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3795 LPFC_PCI_IF0_BAR1_SIZE; 3796 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3797 } else if (bar_num == IDIAG_BARACC_BAR_2) { 3798 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3799 LPFC_PCI_IF0_BAR2_SIZE; 3800 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3801 } else 3802 goto error_out; 3803 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3804 if (bar_num == IDIAG_BARACC_BAR_0) { 3805 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3806 LPFC_PCI_IF2_BAR0_SIZE; 3807 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3808 } else 3809 goto error_out; 3810 } else 3811 goto error_out; 3812 3813 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3814 if (offset % sizeof(uint32_t)) 3815 goto error_out; 3816 3817 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3818 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3819 /* Sanity check on PCI config read command line arguments */ 3820 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3821 goto error_out; 3822 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3823 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3824 if (offset > bar_size - sizeof(uint32_t)) 3825 goto error_out; 3826 /* Starting offset to browse */ 3827 idiag.offset.last_rd = offset; 3828 } else if (acc_range > SINGLE_WORD) { 3829 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3830 goto error_out; 3831 /* Starting offset to browse */ 3832 idiag.offset.last_rd = offset; 3833 } else if (acc_range != SINGLE_WORD) 3834 goto error_out; 3835 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3836 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3837 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3838 /* Sanity check on PCI bar write command line arguments */ 3839 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3840 goto error_out; 3841 /* Write command to PCI bar space, read-modify-write */ 3842 acc_range = SINGLE_WORD; 3843 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3844 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3845 writel(value, mem_mapped_bar + offset); 3846 readl(mem_mapped_bar + offset); 3847 } 3848 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3849 u32val = readl(mem_mapped_bar + offset); 3850 u32val |= value; 3851 writel(u32val, mem_mapped_bar + offset); 3852 readl(mem_mapped_bar + offset); 3853 } 3854 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3855 u32val = readl(mem_mapped_bar + offset); 3856 u32val &= ~value; 3857 writel(u32val, mem_mapped_bar + offset); 3858 readl(mem_mapped_bar + offset); 3859 } 3860 } else 3861 /* All other opecodes are illegal for now */ 3862 goto error_out; 3863 3864 return nbytes; 3865 error_out: 3866 memset(&idiag, 0, sizeof(idiag)); 3867 return -EINVAL; 3868 } 3869 3870 static int 3871 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3872 char *pbuffer, int len) 3873 { 3874 if (!qp) 3875 return len; 3876 3877 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3878 "\t\t%s WQ info: ", wqtype); 3879 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3880 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3881 qp->assoc_qid, qp->q_cnt_1, 3882 (unsigned long long)qp->q_cnt_4); 3883 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3884 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3885 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]", 3886 qp->queue_id, qp->entry_count, 3887 qp->entry_size, qp->host_index, 3888 qp->hba_index, qp->notify_interval); 3889 len += scnprintf(pbuffer + len, 3890 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3891 return len; 3892 } 3893 3894 static int 3895 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3896 int *len, int max_cnt, int cq_id) 3897 { 3898 struct lpfc_queue *qp; 3899 int qidx; 3900 3901 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 3902 qp = phba->sli4_hba.hdwq[qidx].io_wq; 3903 if (qp->assoc_qid != cq_id) 3904 continue; 3905 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3906 if (*len >= max_cnt) 3907 return 1; 3908 } 3909 return 0; 3910 } 3911 3912 static int 3913 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3914 char *pbuffer, int len) 3915 { 3916 if (!qp) 3917 return len; 3918 3919 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3920 "\t%s CQ info: ", cqtype); 3921 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3922 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3923 "xabt:x%x wq:x%llx]\n", 3924 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3925 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3926 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3927 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3928 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d]", 3929 qp->queue_id, qp->entry_count, 3930 qp->entry_size, qp->host_index, 3931 qp->notify_interval, qp->max_proc_limit); 3932 3933 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3934 "\n"); 3935 3936 return len; 3937 } 3938 3939 static int 3940 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3941 char *rqtype, char *pbuffer, int len) 3942 { 3943 if (!qp || !datqp) 3944 return len; 3945 3946 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3947 "\t\t%s RQ info: ", rqtype); 3948 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3949 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3950 "posted:x%x rcv:x%llx]\n", 3951 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3952 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3953 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3954 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3955 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3956 qp->queue_id, qp->entry_count, qp->entry_size, 3957 qp->host_index, qp->hba_index, qp->notify_interval); 3958 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3959 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3960 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3961 datqp->queue_id, datqp->entry_count, 3962 datqp->entry_size, datqp->host_index, 3963 datqp->hba_index, datqp->notify_interval); 3964 return len; 3965 } 3966 3967 static int 3968 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3969 int *len, int max_cnt, int eqidx, int eq_id) 3970 { 3971 struct lpfc_queue *qp; 3972 int rc; 3973 3974 qp = phba->sli4_hba.hdwq[eqidx].io_cq; 3975 3976 *len = __lpfc_idiag_print_cq(qp, "IO", pbuffer, *len); 3977 3978 /* Reset max counter */ 3979 qp->CQ_max_cqe = 0; 3980 3981 if (*len >= max_cnt) 3982 return 1; 3983 3984 rc = lpfc_idiag_wqs_for_cq(phba, "IO", pbuffer, len, 3985 max_cnt, qp->queue_id); 3986 if (rc) 3987 return 1; 3988 3989 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) { 3990 /* NVMET CQset */ 3991 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 3992 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 3993 3994 /* Reset max counter */ 3995 qp->CQ_max_cqe = 0; 3996 3997 if (*len >= max_cnt) 3998 return 1; 3999 4000 /* RQ header */ 4001 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 4002 *len = __lpfc_idiag_print_rqpair(qp, 4003 phba->sli4_hba.nvmet_mrq_data[eqidx], 4004 "NVMET MRQ", pbuffer, *len); 4005 4006 if (*len >= max_cnt) 4007 return 1; 4008 } 4009 4010 return 0; 4011 } 4012 4013 static int 4014 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 4015 char *pbuffer, int len) 4016 { 4017 if (!qp) 4018 return len; 4019 4020 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4021 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 4022 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n", 4023 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 4024 (unsigned long long)qp->q_cnt_4, qp->q_mode); 4025 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4026 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 4027 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]", 4028 qp->queue_id, qp->entry_count, qp->entry_size, 4029 qp->host_index, qp->notify_interval, 4030 qp->max_proc_limit, qp->chann); 4031 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4032 "\n"); 4033 4034 return len; 4035 } 4036 4037 /** 4038 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 4039 * @file: The file pointer to read from. 4040 * @buf: The buffer to copy the data to. 4041 * @nbytes: The number of bytes to read. 4042 * @ppos: The position in the file to start reading from. 4043 * 4044 * Description: 4045 * This routine reads data from the @phba SLI4 PCI function queue information, 4046 * and copies to user @buf. 4047 * This routine only returns 1 EQs worth of information. It remembers the last 4048 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 4049 * retrieve all EQs allocated for the phba. 4050 * 4051 * Returns: 4052 * This function returns the amount of data that was read (this could be less 4053 * than @nbytes if the end of the file was reached) or a negative error value. 4054 **/ 4055 static ssize_t 4056 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 4057 loff_t *ppos) 4058 { 4059 struct lpfc_debug *debug = file->private_data; 4060 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4061 char *pbuffer; 4062 int max_cnt, rc, x, len = 0; 4063 struct lpfc_queue *qp = NULL; 4064 4065 if (!debug->buffer) 4066 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 4067 if (!debug->buffer) 4068 return 0; 4069 pbuffer = debug->buffer; 4070 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 4071 4072 if (*ppos) 4073 return 0; 4074 4075 spin_lock_irq(&phba->hbalock); 4076 4077 /* Fast-path event queue */ 4078 if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) { 4079 4080 x = phba->lpfc_idiag_last_eq; 4081 phba->lpfc_idiag_last_eq++; 4082 if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue) 4083 phba->lpfc_idiag_last_eq = 0; 4084 4085 len += scnprintf(pbuffer + len, 4086 LPFC_QUE_INFO_GET_BUF_SIZE - len, 4087 "HDWQ %d out of %d HBA HDWQs\n", 4088 x, phba->cfg_hdw_queue); 4089 4090 /* Fast-path EQ */ 4091 qp = phba->sli4_hba.hdwq[x].hba_eq; 4092 if (!qp) 4093 goto out; 4094 4095 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 4096 4097 /* Reset max counter */ 4098 qp->EQ_max_eqe = 0; 4099 4100 if (len >= max_cnt) 4101 goto too_big; 4102 4103 /* will dump both fcp and nvme cqs/wqs for the eq */ 4104 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 4105 max_cnt, x, qp->queue_id); 4106 if (rc) 4107 goto too_big; 4108 4109 /* Only EQ 0 has slow path CQs configured */ 4110 if (x) 4111 goto out; 4112 4113 /* Slow-path mailbox CQ */ 4114 qp = phba->sli4_hba.mbx_cq; 4115 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 4116 if (len >= max_cnt) 4117 goto too_big; 4118 4119 /* Slow-path MBOX MQ */ 4120 qp = phba->sli4_hba.mbx_wq; 4121 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 4122 if (len >= max_cnt) 4123 goto too_big; 4124 4125 /* Slow-path ELS response CQ */ 4126 qp = phba->sli4_hba.els_cq; 4127 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 4128 /* Reset max counter */ 4129 if (qp) 4130 qp->CQ_max_cqe = 0; 4131 if (len >= max_cnt) 4132 goto too_big; 4133 4134 /* Slow-path ELS WQ */ 4135 qp = phba->sli4_hba.els_wq; 4136 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 4137 if (len >= max_cnt) 4138 goto too_big; 4139 4140 qp = phba->sli4_hba.hdr_rq; 4141 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 4142 "ELS RQpair", pbuffer, len); 4143 if (len >= max_cnt) 4144 goto too_big; 4145 4146 /* Slow-path NVME LS response CQ */ 4147 qp = phba->sli4_hba.nvmels_cq; 4148 len = __lpfc_idiag_print_cq(qp, "NVME LS", 4149 pbuffer, len); 4150 /* Reset max counter */ 4151 if (qp) 4152 qp->CQ_max_cqe = 0; 4153 if (len >= max_cnt) 4154 goto too_big; 4155 4156 /* Slow-path NVME LS WQ */ 4157 qp = phba->sli4_hba.nvmels_wq; 4158 len = __lpfc_idiag_print_wq(qp, "NVME LS", 4159 pbuffer, len); 4160 if (len >= max_cnt) 4161 goto too_big; 4162 4163 goto out; 4164 } 4165 4166 spin_unlock_irq(&phba->hbalock); 4167 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4168 4169 too_big: 4170 len += scnprintf(pbuffer + len, 4171 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 4172 out: 4173 spin_unlock_irq(&phba->hbalock); 4174 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4175 } 4176 4177 /** 4178 * lpfc_idiag_que_param_check - queue access command parameter sanity check 4179 * @q: The pointer to queue structure. 4180 * @index: The index into a queue entry. 4181 * @count: The number of queue entries to access. 4182 * 4183 * Description: 4184 * The routine performs sanity check on device queue access method commands. 4185 * 4186 * Returns: 4187 * This function returns -EINVAL when fails the sanity check, otherwise, it 4188 * returns 0. 4189 **/ 4190 static int 4191 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 4192 { 4193 /* Only support single entry read or browsing */ 4194 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 4195 return -EINVAL; 4196 if (index > q->entry_count - 1) 4197 return -EINVAL; 4198 return 0; 4199 } 4200 4201 /** 4202 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 4203 * @pbuffer: The pointer to buffer to copy the read data into. 4204 * @pque: The pointer to the queue to be read. 4205 * @index: The index into the queue entry. 4206 * 4207 * Description: 4208 * This routine reads out a single entry from the given queue's index location 4209 * and copies it into the buffer provided. 4210 * 4211 * Returns: 4212 * This function returns 0 when it fails, otherwise, it returns the length of 4213 * the data read into the buffer provided. 4214 **/ 4215 static int 4216 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 4217 uint32_t index) 4218 { 4219 int offset, esize; 4220 uint32_t *pentry; 4221 4222 if (!pbuffer || !pque) 4223 return 0; 4224 4225 esize = pque->entry_size; 4226 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4227 "QE-INDEX[%04d]:\n", index); 4228 4229 offset = 0; 4230 pentry = lpfc_sli4_qe(pque, index); 4231 while (esize > 0) { 4232 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4233 "%08x ", *pentry); 4234 pentry++; 4235 offset += sizeof(uint32_t); 4236 esize -= sizeof(uint32_t); 4237 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 4238 len += scnprintf(pbuffer+len, 4239 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4240 } 4241 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4242 4243 return len; 4244 } 4245 4246 /** 4247 * lpfc_idiag_queacc_read - idiag debugfs read port queue 4248 * @file: The file pointer to read from. 4249 * @buf: The buffer to copy the data to. 4250 * @nbytes: The number of bytes to read. 4251 * @ppos: The position in the file to start reading from. 4252 * 4253 * Description: 4254 * This routine reads data from the @phba device queue memory according to the 4255 * idiag command, and copies to user @buf. Depending on the queue dump read 4256 * command setup, it does either a single queue entry read or browing through 4257 * all entries of the queue. 4258 * 4259 * Returns: 4260 * This function returns the amount of data that was read (this could be less 4261 * than @nbytes if the end of the file was reached) or a negative error value. 4262 **/ 4263 static ssize_t 4264 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 4265 loff_t *ppos) 4266 { 4267 struct lpfc_debug *debug = file->private_data; 4268 uint32_t last_index, index, count; 4269 struct lpfc_queue *pque = NULL; 4270 char *pbuffer; 4271 int len = 0; 4272 4273 /* This is a user read operation */ 4274 debug->op = LPFC_IDIAG_OP_RD; 4275 4276 if (!debug->buffer) 4277 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 4278 if (!debug->buffer) 4279 return 0; 4280 pbuffer = debug->buffer; 4281 4282 if (*ppos) 4283 return 0; 4284 4285 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4286 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4287 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4288 pque = (struct lpfc_queue *)idiag.ptr_private; 4289 } else 4290 return 0; 4291 4292 /* Browse the queue starting from index */ 4293 if (count == LPFC_QUE_ACC_BROWSE) 4294 goto que_browse; 4295 4296 /* Read a single entry from the queue */ 4297 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4298 4299 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4300 4301 que_browse: 4302 4303 /* Browse all entries from the queue */ 4304 last_index = idiag.offset.last_rd; 4305 index = last_index; 4306 4307 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 4308 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4309 index++; 4310 if (index > pque->entry_count - 1) 4311 break; 4312 } 4313 4314 /* Set up the offset for next portion of pci cfg read */ 4315 if (index > pque->entry_count - 1) 4316 index = 0; 4317 idiag.offset.last_rd = index; 4318 4319 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4320 } 4321 4322 /** 4323 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 4324 * @file: The file pointer to read from. 4325 * @buf: The buffer to copy the user data from. 4326 * @nbytes: The number of bytes to get. 4327 * @ppos: The position in the file to start reading from. 4328 * 4329 * This routine get the debugfs idiag command struct from user space and then 4330 * perform the syntax check for port queue read (dump) or write (set) command 4331 * accordingly. In the case of port queue read command, it sets up the command 4332 * in the idiag command struct for the following debugfs read operation. In 4333 * the case of port queue write operation, it executes the write operation 4334 * into the port queue entry accordingly. 4335 * 4336 * It returns the @nbytges passing in from debugfs user space when successful. 4337 * In case of error conditions, it returns proper error code back to the user 4338 * space. 4339 **/ 4340 static ssize_t 4341 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 4342 size_t nbytes, loff_t *ppos) 4343 { 4344 struct lpfc_debug *debug = file->private_data; 4345 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4346 uint32_t qidx, quetp, queid, index, count, offset, value; 4347 uint32_t *pentry; 4348 struct lpfc_queue *pque, *qp; 4349 int rc; 4350 4351 /* This is a user write operation */ 4352 debug->op = LPFC_IDIAG_OP_WR; 4353 4354 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4355 if (rc < 0) 4356 return rc; 4357 4358 /* Get and sanity check on command feilds */ 4359 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 4360 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 4361 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4362 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4363 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 4364 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 4365 4366 /* Sanity check on command line arguments */ 4367 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4368 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4369 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4370 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 4371 goto error_out; 4372 if (count != 1) 4373 goto error_out; 4374 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4375 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 4376 goto error_out; 4377 } else 4378 goto error_out; 4379 4380 switch (quetp) { 4381 case LPFC_IDIAG_EQ: 4382 /* HBA event queue */ 4383 if (phba->sli4_hba.hdwq) { 4384 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4385 qp = phba->sli4_hba.hdwq[qidx].hba_eq; 4386 if (qp && qp->queue_id == queid) { 4387 /* Sanity check */ 4388 rc = lpfc_idiag_que_param_check(qp, 4389 index, count); 4390 if (rc) 4391 goto error_out; 4392 idiag.ptr_private = qp; 4393 goto pass_check; 4394 } 4395 } 4396 } 4397 goto error_out; 4398 break; 4399 case LPFC_IDIAG_CQ: 4400 /* MBX complete queue */ 4401 if (phba->sli4_hba.mbx_cq && 4402 phba->sli4_hba.mbx_cq->queue_id == queid) { 4403 /* Sanity check */ 4404 rc = lpfc_idiag_que_param_check( 4405 phba->sli4_hba.mbx_cq, index, count); 4406 if (rc) 4407 goto error_out; 4408 idiag.ptr_private = phba->sli4_hba.mbx_cq; 4409 goto pass_check; 4410 } 4411 /* ELS complete queue */ 4412 if (phba->sli4_hba.els_cq && 4413 phba->sli4_hba.els_cq->queue_id == queid) { 4414 /* Sanity check */ 4415 rc = lpfc_idiag_que_param_check( 4416 phba->sli4_hba.els_cq, index, count); 4417 if (rc) 4418 goto error_out; 4419 idiag.ptr_private = phba->sli4_hba.els_cq; 4420 goto pass_check; 4421 } 4422 /* NVME LS complete queue */ 4423 if (phba->sli4_hba.nvmels_cq && 4424 phba->sli4_hba.nvmels_cq->queue_id == queid) { 4425 /* Sanity check */ 4426 rc = lpfc_idiag_que_param_check( 4427 phba->sli4_hba.nvmels_cq, index, count); 4428 if (rc) 4429 goto error_out; 4430 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 4431 goto pass_check; 4432 } 4433 /* FCP complete queue */ 4434 if (phba->sli4_hba.hdwq) { 4435 for (qidx = 0; qidx < phba->cfg_hdw_queue; 4436 qidx++) { 4437 qp = phba->sli4_hba.hdwq[qidx].io_cq; 4438 if (qp && qp->queue_id == queid) { 4439 /* Sanity check */ 4440 rc = lpfc_idiag_que_param_check( 4441 qp, index, count); 4442 if (rc) 4443 goto error_out; 4444 idiag.ptr_private = qp; 4445 goto pass_check; 4446 } 4447 } 4448 } 4449 goto error_out; 4450 break; 4451 case LPFC_IDIAG_MQ: 4452 /* MBX work queue */ 4453 if (phba->sli4_hba.mbx_wq && 4454 phba->sli4_hba.mbx_wq->queue_id == queid) { 4455 /* Sanity check */ 4456 rc = lpfc_idiag_que_param_check( 4457 phba->sli4_hba.mbx_wq, index, count); 4458 if (rc) 4459 goto error_out; 4460 idiag.ptr_private = phba->sli4_hba.mbx_wq; 4461 goto pass_check; 4462 } 4463 goto error_out; 4464 break; 4465 case LPFC_IDIAG_WQ: 4466 /* ELS work queue */ 4467 if (phba->sli4_hba.els_wq && 4468 phba->sli4_hba.els_wq->queue_id == queid) { 4469 /* Sanity check */ 4470 rc = lpfc_idiag_que_param_check( 4471 phba->sli4_hba.els_wq, index, count); 4472 if (rc) 4473 goto error_out; 4474 idiag.ptr_private = phba->sli4_hba.els_wq; 4475 goto pass_check; 4476 } 4477 /* NVME LS work queue */ 4478 if (phba->sli4_hba.nvmels_wq && 4479 phba->sli4_hba.nvmels_wq->queue_id == queid) { 4480 /* Sanity check */ 4481 rc = lpfc_idiag_que_param_check( 4482 phba->sli4_hba.nvmels_wq, index, count); 4483 if (rc) 4484 goto error_out; 4485 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 4486 goto pass_check; 4487 } 4488 4489 if (phba->sli4_hba.hdwq) { 4490 /* FCP/SCSI work queue */ 4491 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4492 qp = phba->sli4_hba.hdwq[qidx].io_wq; 4493 if (qp && qp->queue_id == queid) { 4494 /* Sanity check */ 4495 rc = lpfc_idiag_que_param_check( 4496 qp, index, count); 4497 if (rc) 4498 goto error_out; 4499 idiag.ptr_private = qp; 4500 goto pass_check; 4501 } 4502 } 4503 } 4504 4505 goto error_out; 4506 break; 4507 case LPFC_IDIAG_RQ: 4508 /* HDR queue */ 4509 if (phba->sli4_hba.hdr_rq && 4510 phba->sli4_hba.hdr_rq->queue_id == queid) { 4511 /* Sanity check */ 4512 rc = lpfc_idiag_que_param_check( 4513 phba->sli4_hba.hdr_rq, index, count); 4514 if (rc) 4515 goto error_out; 4516 idiag.ptr_private = phba->sli4_hba.hdr_rq; 4517 goto pass_check; 4518 } 4519 /* DAT queue */ 4520 if (phba->sli4_hba.dat_rq && 4521 phba->sli4_hba.dat_rq->queue_id == queid) { 4522 /* Sanity check */ 4523 rc = lpfc_idiag_que_param_check( 4524 phba->sli4_hba.dat_rq, index, count); 4525 if (rc) 4526 goto error_out; 4527 idiag.ptr_private = phba->sli4_hba.dat_rq; 4528 goto pass_check; 4529 } 4530 goto error_out; 4531 break; 4532 default: 4533 goto error_out; 4534 break; 4535 } 4536 4537 pass_check: 4538 4539 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4540 if (count == LPFC_QUE_ACC_BROWSE) 4541 idiag.offset.last_rd = index; 4542 } 4543 4544 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4545 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4546 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4547 /* Additional sanity checks on write operation */ 4548 pque = (struct lpfc_queue *)idiag.ptr_private; 4549 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 4550 goto error_out; 4551 pentry = lpfc_sli4_qe(pque, index); 4552 pentry += offset; 4553 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 4554 *pentry = value; 4555 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 4556 *pentry |= value; 4557 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 4558 *pentry &= ~value; 4559 } 4560 return nbytes; 4561 4562 error_out: 4563 /* Clean out command structure on command error out */ 4564 memset(&idiag, 0, sizeof(idiag)); 4565 return -EINVAL; 4566 } 4567 4568 /** 4569 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 4570 * @phba: The pointer to hba structure. 4571 * @pbuffer: The pointer to the buffer to copy the data to. 4572 * @len: The length of bytes to copied. 4573 * @drbregid: The id to doorbell registers. 4574 * 4575 * Description: 4576 * This routine reads a doorbell register and copies its content to the 4577 * user buffer pointed to by @pbuffer. 4578 * 4579 * Returns: 4580 * This function returns the amount of data that was copied into @pbuffer. 4581 **/ 4582 static int 4583 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4584 int len, uint32_t drbregid) 4585 { 4586 4587 if (!pbuffer) 4588 return 0; 4589 4590 switch (drbregid) { 4591 case LPFC_DRB_EQ: 4592 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len, 4593 "EQ-DRB-REG: 0x%08x\n", 4594 readl(phba->sli4_hba.EQDBregaddr)); 4595 break; 4596 case LPFC_DRB_CQ: 4597 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len, 4598 "CQ-DRB-REG: 0x%08x\n", 4599 readl(phba->sli4_hba.CQDBregaddr)); 4600 break; 4601 case LPFC_DRB_MQ: 4602 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4603 "MQ-DRB-REG: 0x%08x\n", 4604 readl(phba->sli4_hba.MQDBregaddr)); 4605 break; 4606 case LPFC_DRB_WQ: 4607 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4608 "WQ-DRB-REG: 0x%08x\n", 4609 readl(phba->sli4_hba.WQDBregaddr)); 4610 break; 4611 case LPFC_DRB_RQ: 4612 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4613 "RQ-DRB-REG: 0x%08x\n", 4614 readl(phba->sli4_hba.RQDBregaddr)); 4615 break; 4616 default: 4617 break; 4618 } 4619 4620 return len; 4621 } 4622 4623 /** 4624 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 4625 * @file: The file pointer to read from. 4626 * @buf: The buffer to copy the data to. 4627 * @nbytes: The number of bytes to read. 4628 * @ppos: The position in the file to start reading from. 4629 * 4630 * Description: 4631 * This routine reads data from the @phba device doorbell register according 4632 * to the idiag command, and copies to user @buf. Depending on the doorbell 4633 * register read command setup, it does either a single doorbell register 4634 * read or dump all doorbell registers. 4635 * 4636 * Returns: 4637 * This function returns the amount of data that was read (this could be less 4638 * than @nbytes if the end of the file was reached) or a negative error value. 4639 **/ 4640 static ssize_t 4641 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 4642 loff_t *ppos) 4643 { 4644 struct lpfc_debug *debug = file->private_data; 4645 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4646 uint32_t drb_reg_id, i; 4647 char *pbuffer; 4648 int len = 0; 4649 4650 /* This is a user read operation */ 4651 debug->op = LPFC_IDIAG_OP_RD; 4652 4653 if (!debug->buffer) 4654 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 4655 if (!debug->buffer) 4656 return 0; 4657 pbuffer = debug->buffer; 4658 4659 if (*ppos) 4660 return 0; 4661 4662 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 4663 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4664 else 4665 return 0; 4666 4667 if (drb_reg_id == LPFC_DRB_ACC_ALL) 4668 for (i = 1; i <= LPFC_DRB_MAX; i++) 4669 len = lpfc_idiag_drbacc_read_reg(phba, 4670 pbuffer, len, i); 4671 else 4672 len = lpfc_idiag_drbacc_read_reg(phba, 4673 pbuffer, len, drb_reg_id); 4674 4675 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4676 } 4677 4678 /** 4679 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 4680 * @file: The file pointer to read from. 4681 * @buf: The buffer to copy the user data from. 4682 * @nbytes: The number of bytes to get. 4683 * @ppos: The position in the file to start reading from. 4684 * 4685 * This routine get the debugfs idiag command struct from user space and then 4686 * perform the syntax check for port doorbell register read (dump) or write 4687 * (set) command accordingly. In the case of port queue read command, it sets 4688 * up the command in the idiag command struct for the following debugfs read 4689 * operation. In the case of port doorbell register write operation, it 4690 * executes the write operation into the port doorbell register accordingly. 4691 * 4692 * It returns the @nbytges passing in from debugfs user space when successful. 4693 * In case of error conditions, it returns proper error code back to the user 4694 * space. 4695 **/ 4696 static ssize_t 4697 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 4698 size_t nbytes, loff_t *ppos) 4699 { 4700 struct lpfc_debug *debug = file->private_data; 4701 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4702 uint32_t drb_reg_id, value, reg_val = 0; 4703 void __iomem *drb_reg; 4704 int rc; 4705 4706 /* This is a user write operation */ 4707 debug->op = LPFC_IDIAG_OP_WR; 4708 4709 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4710 if (rc < 0) 4711 return rc; 4712 4713 /* Sanity check on command line arguments */ 4714 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4715 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4716 4717 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4718 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4719 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4720 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4721 goto error_out; 4722 if (drb_reg_id > LPFC_DRB_MAX) 4723 goto error_out; 4724 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4725 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4726 goto error_out; 4727 if ((drb_reg_id > LPFC_DRB_MAX) && 4728 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4729 goto error_out; 4730 } else 4731 goto error_out; 4732 4733 /* Perform the write access operation */ 4734 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4735 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4736 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4737 switch (drb_reg_id) { 4738 case LPFC_DRB_EQ: 4739 drb_reg = phba->sli4_hba.EQDBregaddr; 4740 break; 4741 case LPFC_DRB_CQ: 4742 drb_reg = phba->sli4_hba.CQDBregaddr; 4743 break; 4744 case LPFC_DRB_MQ: 4745 drb_reg = phba->sli4_hba.MQDBregaddr; 4746 break; 4747 case LPFC_DRB_WQ: 4748 drb_reg = phba->sli4_hba.WQDBregaddr; 4749 break; 4750 case LPFC_DRB_RQ: 4751 drb_reg = phba->sli4_hba.RQDBregaddr; 4752 break; 4753 default: 4754 goto error_out; 4755 } 4756 4757 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4758 reg_val = value; 4759 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4760 reg_val = readl(drb_reg); 4761 reg_val |= value; 4762 } 4763 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4764 reg_val = readl(drb_reg); 4765 reg_val &= ~value; 4766 } 4767 writel(reg_val, drb_reg); 4768 readl(drb_reg); /* flush */ 4769 } 4770 return nbytes; 4771 4772 error_out: 4773 /* Clean out command structure on command error out */ 4774 memset(&idiag, 0, sizeof(idiag)); 4775 return -EINVAL; 4776 } 4777 4778 /** 4779 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4780 * @phba: The pointer to hba structure. 4781 * @pbuffer: The pointer to the buffer to copy the data to. 4782 * @len: The length of bytes to copied. 4783 * @drbregid: The id to doorbell registers. 4784 * 4785 * Description: 4786 * This routine reads a control register and copies its content to the 4787 * user buffer pointed to by @pbuffer. 4788 * 4789 * Returns: 4790 * This function returns the amount of data that was copied into @pbuffer. 4791 **/ 4792 static int 4793 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4794 int len, uint32_t ctlregid) 4795 { 4796 4797 if (!pbuffer) 4798 return 0; 4799 4800 switch (ctlregid) { 4801 case LPFC_CTL_PORT_SEM: 4802 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4803 "Port SemReg: 0x%08x\n", 4804 readl(phba->sli4_hba.conf_regs_memmap_p + 4805 LPFC_CTL_PORT_SEM_OFFSET)); 4806 break; 4807 case LPFC_CTL_PORT_STA: 4808 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4809 "Port StaReg: 0x%08x\n", 4810 readl(phba->sli4_hba.conf_regs_memmap_p + 4811 LPFC_CTL_PORT_STA_OFFSET)); 4812 break; 4813 case LPFC_CTL_PORT_CTL: 4814 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4815 "Port CtlReg: 0x%08x\n", 4816 readl(phba->sli4_hba.conf_regs_memmap_p + 4817 LPFC_CTL_PORT_CTL_OFFSET)); 4818 break; 4819 case LPFC_CTL_PORT_ER1: 4820 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4821 "Port Er1Reg: 0x%08x\n", 4822 readl(phba->sli4_hba.conf_regs_memmap_p + 4823 LPFC_CTL_PORT_ER1_OFFSET)); 4824 break; 4825 case LPFC_CTL_PORT_ER2: 4826 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4827 "Port Er2Reg: 0x%08x\n", 4828 readl(phba->sli4_hba.conf_regs_memmap_p + 4829 LPFC_CTL_PORT_ER2_OFFSET)); 4830 break; 4831 case LPFC_CTL_PDEV_CTL: 4832 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4833 "PDev CtlReg: 0x%08x\n", 4834 readl(phba->sli4_hba.conf_regs_memmap_p + 4835 LPFC_CTL_PDEV_CTL_OFFSET)); 4836 break; 4837 default: 4838 break; 4839 } 4840 return len; 4841 } 4842 4843 /** 4844 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4845 * @file: The file pointer to read from. 4846 * @buf: The buffer to copy the data to. 4847 * @nbytes: The number of bytes to read. 4848 * @ppos: The position in the file to start reading from. 4849 * 4850 * Description: 4851 * This routine reads data from the @phba port and device registers according 4852 * to the idiag command, and copies to user @buf. 4853 * 4854 * Returns: 4855 * This function returns the amount of data that was read (this could be less 4856 * than @nbytes if the end of the file was reached) or a negative error value. 4857 **/ 4858 static ssize_t 4859 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4860 loff_t *ppos) 4861 { 4862 struct lpfc_debug *debug = file->private_data; 4863 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4864 uint32_t ctl_reg_id, i; 4865 char *pbuffer; 4866 int len = 0; 4867 4868 /* This is a user read operation */ 4869 debug->op = LPFC_IDIAG_OP_RD; 4870 4871 if (!debug->buffer) 4872 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4873 if (!debug->buffer) 4874 return 0; 4875 pbuffer = debug->buffer; 4876 4877 if (*ppos) 4878 return 0; 4879 4880 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4881 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4882 else 4883 return 0; 4884 4885 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4886 for (i = 1; i <= LPFC_CTL_MAX; i++) 4887 len = lpfc_idiag_ctlacc_read_reg(phba, 4888 pbuffer, len, i); 4889 else 4890 len = lpfc_idiag_ctlacc_read_reg(phba, 4891 pbuffer, len, ctl_reg_id); 4892 4893 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4894 } 4895 4896 /** 4897 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4898 * @file: The file pointer to read from. 4899 * @buf: The buffer to copy the user data from. 4900 * @nbytes: The number of bytes to get. 4901 * @ppos: The position in the file to start reading from. 4902 * 4903 * This routine get the debugfs idiag command struct from user space and then 4904 * perform the syntax check for port and device control register read (dump) 4905 * or write (set) command accordingly. 4906 * 4907 * It returns the @nbytges passing in from debugfs user space when successful. 4908 * In case of error conditions, it returns proper error code back to the user 4909 * space. 4910 **/ 4911 static ssize_t 4912 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4913 size_t nbytes, loff_t *ppos) 4914 { 4915 struct lpfc_debug *debug = file->private_data; 4916 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4917 uint32_t ctl_reg_id, value, reg_val = 0; 4918 void __iomem *ctl_reg; 4919 int rc; 4920 4921 /* This is a user write operation */ 4922 debug->op = LPFC_IDIAG_OP_WR; 4923 4924 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4925 if (rc < 0) 4926 return rc; 4927 4928 /* Sanity check on command line arguments */ 4929 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4930 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4931 4932 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4933 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4934 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4935 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4936 goto error_out; 4937 if (ctl_reg_id > LPFC_CTL_MAX) 4938 goto error_out; 4939 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4940 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4941 goto error_out; 4942 if ((ctl_reg_id > LPFC_CTL_MAX) && 4943 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4944 goto error_out; 4945 } else 4946 goto error_out; 4947 4948 /* Perform the write access operation */ 4949 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4950 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4951 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4952 switch (ctl_reg_id) { 4953 case LPFC_CTL_PORT_SEM: 4954 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4955 LPFC_CTL_PORT_SEM_OFFSET; 4956 break; 4957 case LPFC_CTL_PORT_STA: 4958 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4959 LPFC_CTL_PORT_STA_OFFSET; 4960 break; 4961 case LPFC_CTL_PORT_CTL: 4962 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4963 LPFC_CTL_PORT_CTL_OFFSET; 4964 break; 4965 case LPFC_CTL_PORT_ER1: 4966 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4967 LPFC_CTL_PORT_ER1_OFFSET; 4968 break; 4969 case LPFC_CTL_PORT_ER2: 4970 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4971 LPFC_CTL_PORT_ER2_OFFSET; 4972 break; 4973 case LPFC_CTL_PDEV_CTL: 4974 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4975 LPFC_CTL_PDEV_CTL_OFFSET; 4976 break; 4977 default: 4978 goto error_out; 4979 } 4980 4981 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4982 reg_val = value; 4983 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4984 reg_val = readl(ctl_reg); 4985 reg_val |= value; 4986 } 4987 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4988 reg_val = readl(ctl_reg); 4989 reg_val &= ~value; 4990 } 4991 writel(reg_val, ctl_reg); 4992 readl(ctl_reg); /* flush */ 4993 } 4994 return nbytes; 4995 4996 error_out: 4997 /* Clean out command structure on command error out */ 4998 memset(&idiag, 0, sizeof(idiag)); 4999 return -EINVAL; 5000 } 5001 5002 /** 5003 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 5004 * @phba: Pointer to HBA context object. 5005 * @pbuffer: Pointer to data buffer. 5006 * 5007 * Description: 5008 * This routine gets the driver mailbox access debugfs setup information. 5009 * 5010 * Returns: 5011 * This function returns the amount of data that was read (this could be less 5012 * than @nbytes if the end of the file was reached) or a negative error value. 5013 **/ 5014 static int 5015 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 5016 { 5017 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5018 int len = 0; 5019 5020 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5021 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5022 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5023 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5024 5025 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5026 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 5027 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5028 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 5029 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5030 "mbx_word_cnt: %04d\n", mbx_word_cnt); 5031 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5032 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 5033 5034 return len; 5035 } 5036 5037 /** 5038 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 5039 * @file: The file pointer to read from. 5040 * @buf: The buffer to copy the data to. 5041 * @nbytes: The number of bytes to read. 5042 * @ppos: The position in the file to start reading from. 5043 * 5044 * Description: 5045 * This routine reads data from the @phba driver mailbox access debugfs setup 5046 * information. 5047 * 5048 * Returns: 5049 * This function returns the amount of data that was read (this could be less 5050 * than @nbytes if the end of the file was reached) or a negative error value. 5051 **/ 5052 static ssize_t 5053 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 5054 loff_t *ppos) 5055 { 5056 struct lpfc_debug *debug = file->private_data; 5057 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5058 char *pbuffer; 5059 int len = 0; 5060 5061 /* This is a user read operation */ 5062 debug->op = LPFC_IDIAG_OP_RD; 5063 5064 if (!debug->buffer) 5065 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 5066 if (!debug->buffer) 5067 return 0; 5068 pbuffer = debug->buffer; 5069 5070 if (*ppos) 5071 return 0; 5072 5073 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 5074 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 5075 return 0; 5076 5077 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 5078 5079 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5080 } 5081 5082 /** 5083 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 5084 * @file: The file pointer to read from. 5085 * @buf: The buffer to copy the user data from. 5086 * @nbytes: The number of bytes to get. 5087 * @ppos: The position in the file to start reading from. 5088 * 5089 * This routine get the debugfs idiag command struct from user space and then 5090 * perform the syntax check for driver mailbox command (dump) and sets up the 5091 * necessary states in the idiag command struct accordingly. 5092 * 5093 * It returns the @nbytges passing in from debugfs user space when successful. 5094 * In case of error conditions, it returns proper error code back to the user 5095 * space. 5096 **/ 5097 static ssize_t 5098 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 5099 size_t nbytes, loff_t *ppos) 5100 { 5101 struct lpfc_debug *debug = file->private_data; 5102 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5103 int rc; 5104 5105 /* This is a user write operation */ 5106 debug->op = LPFC_IDIAG_OP_WR; 5107 5108 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5109 if (rc < 0) 5110 return rc; 5111 5112 /* Sanity check on command line arguments */ 5113 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5114 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5115 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5116 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5117 5118 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 5119 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 5120 goto error_out; 5121 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 5122 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5123 goto error_out; 5124 if (mbx_word_cnt > sizeof(MAILBOX_t)) 5125 goto error_out; 5126 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 5127 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 5128 goto error_out; 5129 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 5130 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5131 goto error_out; 5132 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 5133 goto error_out; 5134 if (mbx_mbox_cmd != 0x9b) 5135 goto error_out; 5136 } else 5137 goto error_out; 5138 5139 if (mbx_word_cnt == 0) 5140 goto error_out; 5141 if (rc != LPFC_MBX_DMP_ARG) 5142 goto error_out; 5143 if (mbx_mbox_cmd & ~0xff) 5144 goto error_out; 5145 5146 /* condition for stop mailbox dump */ 5147 if (mbx_dump_cnt == 0) 5148 goto reset_out; 5149 5150 return nbytes; 5151 5152 reset_out: 5153 /* Clean out command structure on command error out */ 5154 memset(&idiag, 0, sizeof(idiag)); 5155 return nbytes; 5156 5157 error_out: 5158 /* Clean out command structure on command error out */ 5159 memset(&idiag, 0, sizeof(idiag)); 5160 return -EINVAL; 5161 } 5162 5163 /** 5164 * lpfc_idiag_extacc_avail_get - get the available extents information 5165 * @phba: pointer to lpfc hba data structure. 5166 * @pbuffer: pointer to internal buffer. 5167 * @len: length into the internal buffer data has been copied. 5168 * 5169 * Description: 5170 * This routine is to get the available extent information. 5171 * 5172 * Returns: 5173 * overall lenth of the data read into the internal buffer. 5174 **/ 5175 static int 5176 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 5177 { 5178 uint16_t ext_cnt, ext_size; 5179 5180 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5181 "\nAvailable Extents Information:\n"); 5182 5183 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5184 "\tPort Available VPI extents: "); 5185 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 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 VFI extents: "); 5192 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 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 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5198 "\tPort Available RPI extents: "); 5199 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 5200 &ext_cnt, &ext_size); 5201 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5202 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5203 5204 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5205 "\tPort Available XRI extents: "); 5206 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 5207 &ext_cnt, &ext_size); 5208 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5209 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5210 5211 return len; 5212 } 5213 5214 /** 5215 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 5216 * @phba: pointer to lpfc hba data structure. 5217 * @pbuffer: pointer to internal buffer. 5218 * @len: length into the internal buffer data has been copied. 5219 * 5220 * Description: 5221 * This routine is to get the allocated extent information. 5222 * 5223 * Returns: 5224 * overall lenth of the data read into the internal buffer. 5225 **/ 5226 static int 5227 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 5228 { 5229 uint16_t ext_cnt, ext_size; 5230 int rc; 5231 5232 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5233 "\nAllocated Extents Information:\n"); 5234 5235 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5236 "\tHost Allocated VPI extents: "); 5237 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 5238 &ext_cnt, &ext_size); 5239 if (!rc) 5240 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5241 "Port %d Extent %3d, Size %3d\n", 5242 phba->brd_no, ext_cnt, ext_size); 5243 else 5244 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5245 "N/A\n"); 5246 5247 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5248 "\tHost Allocated VFI extents: "); 5249 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 5250 &ext_cnt, &ext_size); 5251 if (!rc) 5252 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5253 "Port %d Extent %3d, Size %3d\n", 5254 phba->brd_no, ext_cnt, ext_size); 5255 else 5256 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5257 "N/A\n"); 5258 5259 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5260 "\tHost Allocated RPI extents: "); 5261 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 5262 &ext_cnt, &ext_size); 5263 if (!rc) 5264 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5265 "Port %d Extent %3d, Size %3d\n", 5266 phba->brd_no, ext_cnt, ext_size); 5267 else 5268 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5269 "N/A\n"); 5270 5271 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5272 "\tHost Allocated XRI extents: "); 5273 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 5274 &ext_cnt, &ext_size); 5275 if (!rc) 5276 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5277 "Port %d Extent %3d, Size %3d\n", 5278 phba->brd_no, ext_cnt, ext_size); 5279 else 5280 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5281 "N/A\n"); 5282 5283 return len; 5284 } 5285 5286 /** 5287 * lpfc_idiag_extacc_drivr_get - get driver extent information 5288 * @phba: pointer to lpfc hba data structure. 5289 * @pbuffer: pointer to internal buffer. 5290 * @len: length into the internal buffer data has been copied. 5291 * 5292 * Description: 5293 * This routine is to get the driver extent information. 5294 * 5295 * Returns: 5296 * overall lenth of the data read into the internal buffer. 5297 **/ 5298 static int 5299 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 5300 { 5301 struct lpfc_rsrc_blks *rsrc_blks; 5302 int index; 5303 5304 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5305 "\nDriver Extents Information:\n"); 5306 5307 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5308 "\tVPI extents:\n"); 5309 index = 0; 5310 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 5311 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5312 "\t\tBlock %3d: Start %4d, Count %4d\n", 5313 index, rsrc_blks->rsrc_start, 5314 rsrc_blks->rsrc_size); 5315 index++; 5316 } 5317 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5318 "\tVFI extents:\n"); 5319 index = 0; 5320 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 5321 list) { 5322 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5323 "\t\tBlock %3d: Start %4d, Count %4d\n", 5324 index, rsrc_blks->rsrc_start, 5325 rsrc_blks->rsrc_size); 5326 index++; 5327 } 5328 5329 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5330 "\tRPI extents:\n"); 5331 index = 0; 5332 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 5333 list) { 5334 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5335 "\t\tBlock %3d: Start %4d, Count %4d\n", 5336 index, rsrc_blks->rsrc_start, 5337 rsrc_blks->rsrc_size); 5338 index++; 5339 } 5340 5341 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5342 "\tXRI extents:\n"); 5343 index = 0; 5344 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 5345 list) { 5346 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5347 "\t\tBlock %3d: Start %4d, Count %4d\n", 5348 index, rsrc_blks->rsrc_start, 5349 rsrc_blks->rsrc_size); 5350 index++; 5351 } 5352 5353 return len; 5354 } 5355 5356 /** 5357 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 5358 * @file: The file pointer to read from. 5359 * @buf: The buffer to copy the user data from. 5360 * @nbytes: The number of bytes to get. 5361 * @ppos: The position in the file to start reading from. 5362 * 5363 * This routine get the debugfs idiag command struct from user space and then 5364 * perform the syntax check for extent information access commands and sets 5365 * up the necessary states in the idiag command struct accordingly. 5366 * 5367 * It returns the @nbytges passing in from debugfs user space when successful. 5368 * In case of error conditions, it returns proper error code back to the user 5369 * space. 5370 **/ 5371 static ssize_t 5372 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 5373 size_t nbytes, loff_t *ppos) 5374 { 5375 struct lpfc_debug *debug = file->private_data; 5376 uint32_t ext_map; 5377 int rc; 5378 5379 /* This is a user write operation */ 5380 debug->op = LPFC_IDIAG_OP_WR; 5381 5382 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5383 if (rc < 0) 5384 return rc; 5385 5386 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5387 5388 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5389 goto error_out; 5390 if (rc != LPFC_EXT_ACC_CMD_ARG) 5391 goto error_out; 5392 if (!(ext_map & LPFC_EXT_ACC_ALL)) 5393 goto error_out; 5394 5395 return nbytes; 5396 error_out: 5397 /* Clean out command structure on command error out */ 5398 memset(&idiag, 0, sizeof(idiag)); 5399 return -EINVAL; 5400 } 5401 5402 /** 5403 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 5404 * @file: The file pointer to read from. 5405 * @buf: The buffer to copy the data to. 5406 * @nbytes: The number of bytes to read. 5407 * @ppos: The position in the file to start reading from. 5408 * 5409 * Description: 5410 * This routine reads data from the proper extent information according to 5411 * the idiag command, and copies to user @buf. 5412 * 5413 * Returns: 5414 * This function returns the amount of data that was read (this could be less 5415 * than @nbytes if the end of the file was reached) or a negative error value. 5416 **/ 5417 static ssize_t 5418 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 5419 loff_t *ppos) 5420 { 5421 struct lpfc_debug *debug = file->private_data; 5422 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5423 char *pbuffer; 5424 uint32_t ext_map; 5425 int len = 0; 5426 5427 /* This is a user read operation */ 5428 debug->op = LPFC_IDIAG_OP_RD; 5429 5430 if (!debug->buffer) 5431 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 5432 if (!debug->buffer) 5433 return 0; 5434 pbuffer = debug->buffer; 5435 if (*ppos) 5436 return 0; 5437 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5438 return 0; 5439 5440 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5441 if (ext_map & LPFC_EXT_ACC_AVAIL) 5442 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 5443 if (ext_map & LPFC_EXT_ACC_ALLOC) 5444 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 5445 if (ext_map & LPFC_EXT_ACC_DRIVR) 5446 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 5447 5448 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5449 } 5450 5451 #undef lpfc_debugfs_op_disc_trc 5452 static const struct file_operations lpfc_debugfs_op_disc_trc = { 5453 .owner = THIS_MODULE, 5454 .open = lpfc_debugfs_disc_trc_open, 5455 .llseek = lpfc_debugfs_lseek, 5456 .read = lpfc_debugfs_read, 5457 .release = lpfc_debugfs_release, 5458 }; 5459 5460 #undef lpfc_debugfs_op_nodelist 5461 static const struct file_operations lpfc_debugfs_op_nodelist = { 5462 .owner = THIS_MODULE, 5463 .open = lpfc_debugfs_nodelist_open, 5464 .llseek = lpfc_debugfs_lseek, 5465 .read = lpfc_debugfs_read, 5466 .release = lpfc_debugfs_release, 5467 }; 5468 5469 #undef lpfc_debugfs_op_multixripools 5470 static const struct file_operations lpfc_debugfs_op_multixripools = { 5471 .owner = THIS_MODULE, 5472 .open = lpfc_debugfs_multixripools_open, 5473 .llseek = lpfc_debugfs_lseek, 5474 .read = lpfc_debugfs_read, 5475 .write = lpfc_debugfs_multixripools_write, 5476 .release = lpfc_debugfs_release, 5477 }; 5478 5479 #undef lpfc_debugfs_op_hbqinfo 5480 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 5481 .owner = THIS_MODULE, 5482 .open = lpfc_debugfs_hbqinfo_open, 5483 .llseek = lpfc_debugfs_lseek, 5484 .read = lpfc_debugfs_read, 5485 .release = lpfc_debugfs_release, 5486 }; 5487 5488 #ifdef LPFC_HDWQ_LOCK_STAT 5489 #undef lpfc_debugfs_op_lockstat 5490 static const struct file_operations lpfc_debugfs_op_lockstat = { 5491 .owner = THIS_MODULE, 5492 .open = lpfc_debugfs_lockstat_open, 5493 .llseek = lpfc_debugfs_lseek, 5494 .read = lpfc_debugfs_read, 5495 .write = lpfc_debugfs_lockstat_write, 5496 .release = lpfc_debugfs_release, 5497 }; 5498 #endif 5499 5500 #undef lpfc_debugfs_ras_log 5501 static const struct file_operations lpfc_debugfs_ras_log = { 5502 .owner = THIS_MODULE, 5503 .open = lpfc_debugfs_ras_log_open, 5504 .llseek = lpfc_debugfs_lseek, 5505 .read = lpfc_debugfs_read, 5506 .release = lpfc_debugfs_ras_log_release, 5507 }; 5508 5509 #undef lpfc_debugfs_op_dumpHBASlim 5510 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 5511 .owner = THIS_MODULE, 5512 .open = lpfc_debugfs_dumpHBASlim_open, 5513 .llseek = lpfc_debugfs_lseek, 5514 .read = lpfc_debugfs_read, 5515 .release = lpfc_debugfs_release, 5516 }; 5517 5518 #undef lpfc_debugfs_op_dumpHostSlim 5519 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 5520 .owner = THIS_MODULE, 5521 .open = lpfc_debugfs_dumpHostSlim_open, 5522 .llseek = lpfc_debugfs_lseek, 5523 .read = lpfc_debugfs_read, 5524 .release = lpfc_debugfs_release, 5525 }; 5526 5527 #undef lpfc_debugfs_op_nvmestat 5528 static const struct file_operations lpfc_debugfs_op_nvmestat = { 5529 .owner = THIS_MODULE, 5530 .open = lpfc_debugfs_nvmestat_open, 5531 .llseek = lpfc_debugfs_lseek, 5532 .read = lpfc_debugfs_read, 5533 .write = lpfc_debugfs_nvmestat_write, 5534 .release = lpfc_debugfs_release, 5535 }; 5536 5537 #undef lpfc_debugfs_op_scsistat 5538 static const struct file_operations lpfc_debugfs_op_scsistat = { 5539 .owner = THIS_MODULE, 5540 .open = lpfc_debugfs_scsistat_open, 5541 .llseek = lpfc_debugfs_lseek, 5542 .read = lpfc_debugfs_read, 5543 .write = lpfc_debugfs_scsistat_write, 5544 .release = lpfc_debugfs_release, 5545 }; 5546 5547 #undef lpfc_debugfs_op_ioktime 5548 static const struct file_operations lpfc_debugfs_op_ioktime = { 5549 .owner = THIS_MODULE, 5550 .open = lpfc_debugfs_ioktime_open, 5551 .llseek = lpfc_debugfs_lseek, 5552 .read = lpfc_debugfs_read, 5553 .write = lpfc_debugfs_ioktime_write, 5554 .release = lpfc_debugfs_release, 5555 }; 5556 5557 #undef lpfc_debugfs_op_nvmeio_trc 5558 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 5559 .owner = THIS_MODULE, 5560 .open = lpfc_debugfs_nvmeio_trc_open, 5561 .llseek = lpfc_debugfs_lseek, 5562 .read = lpfc_debugfs_read, 5563 .write = lpfc_debugfs_nvmeio_trc_write, 5564 .release = lpfc_debugfs_release, 5565 }; 5566 5567 #undef lpfc_debugfs_op_hdwqstat 5568 static const struct file_operations lpfc_debugfs_op_hdwqstat = { 5569 .owner = THIS_MODULE, 5570 .open = lpfc_debugfs_hdwqstat_open, 5571 .llseek = lpfc_debugfs_lseek, 5572 .read = lpfc_debugfs_read, 5573 .write = lpfc_debugfs_hdwqstat_write, 5574 .release = lpfc_debugfs_release, 5575 }; 5576 5577 #undef lpfc_debugfs_op_dif_err 5578 static const struct file_operations lpfc_debugfs_op_dif_err = { 5579 .owner = THIS_MODULE, 5580 .open = simple_open, 5581 .llseek = lpfc_debugfs_lseek, 5582 .read = lpfc_debugfs_dif_err_read, 5583 .write = lpfc_debugfs_dif_err_write, 5584 .release = lpfc_debugfs_dif_err_release, 5585 }; 5586 5587 #undef lpfc_debugfs_op_slow_ring_trc 5588 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 5589 .owner = THIS_MODULE, 5590 .open = lpfc_debugfs_slow_ring_trc_open, 5591 .llseek = lpfc_debugfs_lseek, 5592 .read = lpfc_debugfs_read, 5593 .release = lpfc_debugfs_release, 5594 }; 5595 5596 static struct dentry *lpfc_debugfs_root = NULL; 5597 static atomic_t lpfc_debugfs_hba_count; 5598 5599 /* 5600 * File operations for the iDiag debugfs 5601 */ 5602 #undef lpfc_idiag_op_pciCfg 5603 static const struct file_operations lpfc_idiag_op_pciCfg = { 5604 .owner = THIS_MODULE, 5605 .open = lpfc_idiag_open, 5606 .llseek = lpfc_debugfs_lseek, 5607 .read = lpfc_idiag_pcicfg_read, 5608 .write = lpfc_idiag_pcicfg_write, 5609 .release = lpfc_idiag_cmd_release, 5610 }; 5611 5612 #undef lpfc_idiag_op_barAcc 5613 static const struct file_operations lpfc_idiag_op_barAcc = { 5614 .owner = THIS_MODULE, 5615 .open = lpfc_idiag_open, 5616 .llseek = lpfc_debugfs_lseek, 5617 .read = lpfc_idiag_baracc_read, 5618 .write = lpfc_idiag_baracc_write, 5619 .release = lpfc_idiag_cmd_release, 5620 }; 5621 5622 #undef lpfc_idiag_op_queInfo 5623 static const struct file_operations lpfc_idiag_op_queInfo = { 5624 .owner = THIS_MODULE, 5625 .open = lpfc_idiag_open, 5626 .read = lpfc_idiag_queinfo_read, 5627 .release = lpfc_idiag_release, 5628 }; 5629 5630 #undef lpfc_idiag_op_queAcc 5631 static const struct file_operations lpfc_idiag_op_queAcc = { 5632 .owner = THIS_MODULE, 5633 .open = lpfc_idiag_open, 5634 .llseek = lpfc_debugfs_lseek, 5635 .read = lpfc_idiag_queacc_read, 5636 .write = lpfc_idiag_queacc_write, 5637 .release = lpfc_idiag_cmd_release, 5638 }; 5639 5640 #undef lpfc_idiag_op_drbAcc 5641 static const struct file_operations lpfc_idiag_op_drbAcc = { 5642 .owner = THIS_MODULE, 5643 .open = lpfc_idiag_open, 5644 .llseek = lpfc_debugfs_lseek, 5645 .read = lpfc_idiag_drbacc_read, 5646 .write = lpfc_idiag_drbacc_write, 5647 .release = lpfc_idiag_cmd_release, 5648 }; 5649 5650 #undef lpfc_idiag_op_ctlAcc 5651 static const struct file_operations lpfc_idiag_op_ctlAcc = { 5652 .owner = THIS_MODULE, 5653 .open = lpfc_idiag_open, 5654 .llseek = lpfc_debugfs_lseek, 5655 .read = lpfc_idiag_ctlacc_read, 5656 .write = lpfc_idiag_ctlacc_write, 5657 .release = lpfc_idiag_cmd_release, 5658 }; 5659 5660 #undef lpfc_idiag_op_mbxAcc 5661 static const struct file_operations lpfc_idiag_op_mbxAcc = { 5662 .owner = THIS_MODULE, 5663 .open = lpfc_idiag_open, 5664 .llseek = lpfc_debugfs_lseek, 5665 .read = lpfc_idiag_mbxacc_read, 5666 .write = lpfc_idiag_mbxacc_write, 5667 .release = lpfc_idiag_cmd_release, 5668 }; 5669 5670 #undef lpfc_idiag_op_extAcc 5671 static const struct file_operations lpfc_idiag_op_extAcc = { 5672 .owner = THIS_MODULE, 5673 .open = lpfc_idiag_open, 5674 .llseek = lpfc_debugfs_lseek, 5675 .read = lpfc_idiag_extacc_read, 5676 .write = lpfc_idiag_extacc_write, 5677 .release = lpfc_idiag_cmd_release, 5678 }; 5679 #endif 5680 5681 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 5682 * @phba: Pointer to HBA context object. 5683 * @dmabuf: Pointer to a DMA buffer descriptor. 5684 * 5685 * Description: 5686 * This routine dump a bsg pass-through non-embedded mailbox command with 5687 * external buffer. 5688 **/ 5689 void 5690 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 5691 enum mbox_type mbox_tp, enum dma_type dma_tp, 5692 enum sta_type sta_tp, 5693 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 5694 { 5695 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5696 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 5697 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5698 int len = 0; 5699 uint32_t do_dump = 0; 5700 uint32_t *pword; 5701 uint32_t i; 5702 5703 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 5704 return; 5705 5706 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5707 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5708 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5709 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5710 5711 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 5712 (*mbx_dump_cnt == 0) || 5713 (*mbx_word_cnt == 0)) 5714 return; 5715 5716 if (*mbx_mbox_cmd != 0x9B) 5717 return; 5718 5719 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 5720 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 5721 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 5722 pr_err("\nRead mbox command (x%x), " 5723 "nemb:0x%x, extbuf_cnt:%d:\n", 5724 sta_tp, nemb_tp, ext_buf); 5725 } 5726 } 5727 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5728 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5729 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5730 pr_err("\nRead mbox buffer (x%x), " 5731 "nemb:0x%x, extbuf_seq:%d:\n", 5732 sta_tp, nemb_tp, ext_buf); 5733 } 5734 } 5735 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5736 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5737 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5738 pr_err("\nWrite mbox command (x%x), " 5739 "nemb:0x%x, extbuf_cnt:%d:\n", 5740 sta_tp, nemb_tp, ext_buf); 5741 } 5742 } 5743 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5744 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5745 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5746 pr_err("\nWrite mbox buffer (x%x), " 5747 "nemb:0x%x, extbuf_seq:%d:\n", 5748 sta_tp, nemb_tp, ext_buf); 5749 } 5750 } 5751 5752 /* dump buffer content */ 5753 if (do_dump) { 5754 pword = (uint32_t *)dmabuf->virt; 5755 for (i = 0; i < *mbx_word_cnt; i++) { 5756 if (!(i % 8)) { 5757 if (i != 0) 5758 pr_err("%s\n", line_buf); 5759 len = 0; 5760 len += scnprintf(line_buf+len, 5761 LPFC_MBX_ACC_LBUF_SZ-len, 5762 "%03d: ", i); 5763 } 5764 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5765 "%08x ", (uint32_t)*pword); 5766 pword++; 5767 } 5768 if ((i - 1) % 8) 5769 pr_err("%s\n", line_buf); 5770 (*mbx_dump_cnt)--; 5771 } 5772 5773 /* Clean out command structure on reaching dump count */ 5774 if (*mbx_dump_cnt == 0) 5775 memset(&idiag, 0, sizeof(idiag)); 5776 return; 5777 #endif 5778 } 5779 5780 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5781 * @phba: Pointer to HBA context object. 5782 * @dmabuf: Pointer to a DMA buffer descriptor. 5783 * 5784 * Description: 5785 * This routine dump a pass-through non-embedded mailbox command from issue 5786 * mailbox command. 5787 **/ 5788 void 5789 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5790 { 5791 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5792 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5793 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5794 int len = 0; 5795 uint32_t *pword; 5796 uint8_t *pbyte; 5797 uint32_t i, j; 5798 5799 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5800 return; 5801 5802 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5803 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5804 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5805 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5806 5807 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5808 (*mbx_dump_cnt == 0) || 5809 (*mbx_word_cnt == 0)) 5810 return; 5811 5812 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5813 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5814 return; 5815 5816 /* dump buffer content */ 5817 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 5818 pr_err("Mailbox command:0x%x dump by word:\n", 5819 pmbox->mbxCommand); 5820 pword = (uint32_t *)pmbox; 5821 for (i = 0; i < *mbx_word_cnt; i++) { 5822 if (!(i % 8)) { 5823 if (i != 0) 5824 pr_err("%s\n", line_buf); 5825 len = 0; 5826 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5827 len += scnprintf(line_buf+len, 5828 LPFC_MBX_ACC_LBUF_SZ-len, 5829 "%03d: ", i); 5830 } 5831 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5832 "%08x ", 5833 ((uint32_t)*pword) & 0xffffffff); 5834 pword++; 5835 } 5836 if ((i - 1) % 8) 5837 pr_err("%s\n", line_buf); 5838 pr_err("\n"); 5839 } 5840 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 5841 pr_err("Mailbox command:0x%x dump by byte:\n", 5842 pmbox->mbxCommand); 5843 pbyte = (uint8_t *)pmbox; 5844 for (i = 0; i < *mbx_word_cnt; i++) { 5845 if (!(i % 8)) { 5846 if (i != 0) 5847 pr_err("%s\n", line_buf); 5848 len = 0; 5849 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5850 len += scnprintf(line_buf+len, 5851 LPFC_MBX_ACC_LBUF_SZ-len, 5852 "%03d: ", i); 5853 } 5854 for (j = 0; j < 4; j++) { 5855 len += scnprintf(line_buf+len, 5856 LPFC_MBX_ACC_LBUF_SZ-len, 5857 "%02x", 5858 ((uint8_t)*pbyte) & 0xff); 5859 pbyte++; 5860 } 5861 len += scnprintf(line_buf+len, 5862 LPFC_MBX_ACC_LBUF_SZ-len, " "); 5863 } 5864 if ((i - 1) % 8) 5865 pr_err("%s\n", line_buf); 5866 pr_err("\n"); 5867 } 5868 (*mbx_dump_cnt)--; 5869 5870 /* Clean out command structure on reaching dump count */ 5871 if (*mbx_dump_cnt == 0) 5872 memset(&idiag, 0, sizeof(idiag)); 5873 return; 5874 #endif 5875 } 5876 5877 /** 5878 * lpfc_debugfs_initialize - Initialize debugfs for a vport 5879 * @vport: The vport pointer to initialize. 5880 * 5881 * Description: 5882 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 5883 * If not already created, this routine will create the lpfc directory, and 5884 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 5885 * also create each file used to access lpfc specific debugfs information. 5886 **/ 5887 inline void 5888 lpfc_debugfs_initialize(struct lpfc_vport *vport) 5889 { 5890 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5891 struct lpfc_hba *phba = vport->phba; 5892 char name[64]; 5893 uint32_t num, i; 5894 bool pport_setup = false; 5895 5896 if (!lpfc_debugfs_enable) 5897 return; 5898 5899 /* Setup lpfc root directory */ 5900 if (!lpfc_debugfs_root) { 5901 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 5902 atomic_set(&lpfc_debugfs_hba_count, 0); 5903 } 5904 if (!lpfc_debugfs_start_time) 5905 lpfc_debugfs_start_time = jiffies; 5906 5907 /* Setup funcX directory for specific HBA PCI function */ 5908 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 5909 if (!phba->hba_debugfs_root) { 5910 pport_setup = true; 5911 phba->hba_debugfs_root = 5912 debugfs_create_dir(name, lpfc_debugfs_root); 5913 atomic_inc(&lpfc_debugfs_hba_count); 5914 atomic_set(&phba->debugfs_vport_count, 0); 5915 5916 /* Multi-XRI pools */ 5917 snprintf(name, sizeof(name), "multixripools"); 5918 phba->debug_multixri_pools = 5919 debugfs_create_file(name, S_IFREG | 0644, 5920 phba->hba_debugfs_root, 5921 phba, 5922 &lpfc_debugfs_op_multixripools); 5923 if (!phba->debug_multixri_pools) { 5924 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5925 "0527 Cannot create debugfs multixripools\n"); 5926 goto debug_failed; 5927 } 5928 5929 /* RAS log */ 5930 snprintf(name, sizeof(name), "ras_log"); 5931 phba->debug_ras_log = 5932 debugfs_create_file(name, 0644, 5933 phba->hba_debugfs_root, 5934 phba, &lpfc_debugfs_ras_log); 5935 if (!phba->debug_ras_log) { 5936 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5937 "6148 Cannot create debugfs" 5938 " ras_log\n"); 5939 goto debug_failed; 5940 } 5941 5942 /* Setup hbqinfo */ 5943 snprintf(name, sizeof(name), "hbqinfo"); 5944 phba->debug_hbqinfo = 5945 debugfs_create_file(name, S_IFREG | 0644, 5946 phba->hba_debugfs_root, 5947 phba, &lpfc_debugfs_op_hbqinfo); 5948 5949 #ifdef LPFC_HDWQ_LOCK_STAT 5950 /* Setup lockstat */ 5951 snprintf(name, sizeof(name), "lockstat"); 5952 phba->debug_lockstat = 5953 debugfs_create_file(name, S_IFREG | 0644, 5954 phba->hba_debugfs_root, 5955 phba, &lpfc_debugfs_op_lockstat); 5956 if (!phba->debug_lockstat) { 5957 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 5958 "4610 Cant create debugfs lockstat\n"); 5959 goto debug_failed; 5960 } 5961 #endif 5962 5963 /* Setup dumpHBASlim */ 5964 if (phba->sli_rev < LPFC_SLI_REV4) { 5965 snprintf(name, sizeof(name), "dumpHBASlim"); 5966 phba->debug_dumpHBASlim = 5967 debugfs_create_file(name, 5968 S_IFREG|S_IRUGO|S_IWUSR, 5969 phba->hba_debugfs_root, 5970 phba, &lpfc_debugfs_op_dumpHBASlim); 5971 } else 5972 phba->debug_dumpHBASlim = NULL; 5973 5974 /* Setup dumpHostSlim */ 5975 if (phba->sli_rev < LPFC_SLI_REV4) { 5976 snprintf(name, sizeof(name), "dumpHostSlim"); 5977 phba->debug_dumpHostSlim = 5978 debugfs_create_file(name, 5979 S_IFREG|S_IRUGO|S_IWUSR, 5980 phba->hba_debugfs_root, 5981 phba, &lpfc_debugfs_op_dumpHostSlim); 5982 } else 5983 phba->debug_dumpHostSlim = NULL; 5984 5985 /* Setup DIF Error Injections */ 5986 snprintf(name, sizeof(name), "InjErrLBA"); 5987 phba->debug_InjErrLBA = 5988 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5989 phba->hba_debugfs_root, 5990 phba, &lpfc_debugfs_op_dif_err); 5991 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 5992 5993 snprintf(name, sizeof(name), "InjErrNPortID"); 5994 phba->debug_InjErrNPortID = 5995 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 5996 phba->hba_debugfs_root, 5997 phba, &lpfc_debugfs_op_dif_err); 5998 5999 snprintf(name, sizeof(name), "InjErrWWPN"); 6000 phba->debug_InjErrWWPN = 6001 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6002 phba->hba_debugfs_root, 6003 phba, &lpfc_debugfs_op_dif_err); 6004 6005 snprintf(name, sizeof(name), "writeGuardInjErr"); 6006 phba->debug_writeGuard = 6007 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6008 phba->hba_debugfs_root, 6009 phba, &lpfc_debugfs_op_dif_err); 6010 6011 snprintf(name, sizeof(name), "writeAppInjErr"); 6012 phba->debug_writeApp = 6013 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6014 phba->hba_debugfs_root, 6015 phba, &lpfc_debugfs_op_dif_err); 6016 6017 snprintf(name, sizeof(name), "writeRefInjErr"); 6018 phba->debug_writeRef = 6019 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6020 phba->hba_debugfs_root, 6021 phba, &lpfc_debugfs_op_dif_err); 6022 6023 snprintf(name, sizeof(name), "readGuardInjErr"); 6024 phba->debug_readGuard = 6025 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6026 phba->hba_debugfs_root, 6027 phba, &lpfc_debugfs_op_dif_err); 6028 6029 snprintf(name, sizeof(name), "readAppInjErr"); 6030 phba->debug_readApp = 6031 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6032 phba->hba_debugfs_root, 6033 phba, &lpfc_debugfs_op_dif_err); 6034 6035 snprintf(name, sizeof(name), "readRefInjErr"); 6036 phba->debug_readRef = 6037 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6038 phba->hba_debugfs_root, 6039 phba, &lpfc_debugfs_op_dif_err); 6040 6041 /* Setup slow ring trace */ 6042 if (lpfc_debugfs_max_slow_ring_trc) { 6043 num = lpfc_debugfs_max_slow_ring_trc - 1; 6044 if (num & lpfc_debugfs_max_slow_ring_trc) { 6045 /* Change to be a power of 2 */ 6046 num = lpfc_debugfs_max_slow_ring_trc; 6047 i = 0; 6048 while (num > 1) { 6049 num = num >> 1; 6050 i++; 6051 } 6052 lpfc_debugfs_max_slow_ring_trc = (1 << i); 6053 pr_err("lpfc_debugfs_max_disc_trc changed to " 6054 "%d\n", lpfc_debugfs_max_disc_trc); 6055 } 6056 } 6057 6058 snprintf(name, sizeof(name), "slow_ring_trace"); 6059 phba->debug_slow_ring_trc = 6060 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6061 phba->hba_debugfs_root, 6062 phba, &lpfc_debugfs_op_slow_ring_trc); 6063 if (!phba->slow_ring_trc) { 6064 phba->slow_ring_trc = kmalloc( 6065 (sizeof(struct lpfc_debugfs_trc) * 6066 lpfc_debugfs_max_slow_ring_trc), 6067 GFP_KERNEL); 6068 if (!phba->slow_ring_trc) { 6069 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6070 "0416 Cannot create debugfs " 6071 "slow_ring buffer\n"); 6072 goto debug_failed; 6073 } 6074 atomic_set(&phba->slow_ring_trc_cnt, 0); 6075 memset(phba->slow_ring_trc, 0, 6076 (sizeof(struct lpfc_debugfs_trc) * 6077 lpfc_debugfs_max_slow_ring_trc)); 6078 } 6079 6080 snprintf(name, sizeof(name), "nvmeio_trc"); 6081 phba->debug_nvmeio_trc = 6082 debugfs_create_file(name, 0644, 6083 phba->hba_debugfs_root, 6084 phba, &lpfc_debugfs_op_nvmeio_trc); 6085 6086 atomic_set(&phba->nvmeio_trc_cnt, 0); 6087 if (lpfc_debugfs_max_nvmeio_trc) { 6088 num = lpfc_debugfs_max_nvmeio_trc - 1; 6089 if (num & lpfc_debugfs_max_disc_trc) { 6090 /* Change to be a power of 2 */ 6091 num = lpfc_debugfs_max_nvmeio_trc; 6092 i = 0; 6093 while (num > 1) { 6094 num = num >> 1; 6095 i++; 6096 } 6097 lpfc_debugfs_max_nvmeio_trc = (1 << i); 6098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6099 "0575 lpfc_debugfs_max_nvmeio_trc " 6100 "changed to %d\n", 6101 lpfc_debugfs_max_nvmeio_trc); 6102 } 6103 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 6104 6105 /* Allocate trace buffer and initialize */ 6106 phba->nvmeio_trc = kzalloc( 6107 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 6108 phba->nvmeio_trc_size), GFP_KERNEL); 6109 6110 if (!phba->nvmeio_trc) { 6111 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6112 "0576 Cannot create debugfs " 6113 "nvmeio_trc buffer\n"); 6114 goto nvmeio_off; 6115 } 6116 phba->nvmeio_trc_on = 1; 6117 phba->nvmeio_trc_output_idx = 0; 6118 phba->nvmeio_trc = NULL; 6119 } else { 6120 nvmeio_off: 6121 phba->nvmeio_trc_size = 0; 6122 phba->nvmeio_trc_on = 0; 6123 phba->nvmeio_trc_output_idx = 0; 6124 phba->nvmeio_trc = NULL; 6125 } 6126 } 6127 6128 snprintf(name, sizeof(name), "vport%d", vport->vpi); 6129 if (!vport->vport_debugfs_root) { 6130 vport->vport_debugfs_root = 6131 debugfs_create_dir(name, phba->hba_debugfs_root); 6132 atomic_inc(&phba->debugfs_vport_count); 6133 } 6134 6135 if (lpfc_debugfs_max_disc_trc) { 6136 num = lpfc_debugfs_max_disc_trc - 1; 6137 if (num & lpfc_debugfs_max_disc_trc) { 6138 /* Change to be a power of 2 */ 6139 num = lpfc_debugfs_max_disc_trc; 6140 i = 0; 6141 while (num > 1) { 6142 num = num >> 1; 6143 i++; 6144 } 6145 lpfc_debugfs_max_disc_trc = (1 << i); 6146 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n", 6147 lpfc_debugfs_max_disc_trc); 6148 } 6149 } 6150 6151 vport->disc_trc = kzalloc( 6152 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 6153 GFP_KERNEL); 6154 6155 if (!vport->disc_trc) { 6156 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6157 "0418 Cannot create debugfs disc trace " 6158 "buffer\n"); 6159 goto debug_failed; 6160 } 6161 atomic_set(&vport->disc_trc_cnt, 0); 6162 6163 snprintf(name, sizeof(name), "discovery_trace"); 6164 vport->debug_disc_trc = 6165 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6166 vport->vport_debugfs_root, 6167 vport, &lpfc_debugfs_op_disc_trc); 6168 snprintf(name, sizeof(name), "nodelist"); 6169 vport->debug_nodelist = 6170 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6171 vport->vport_debugfs_root, 6172 vport, &lpfc_debugfs_op_nodelist); 6173 6174 snprintf(name, sizeof(name), "nvmestat"); 6175 vport->debug_nvmestat = 6176 debugfs_create_file(name, 0644, 6177 vport->vport_debugfs_root, 6178 vport, &lpfc_debugfs_op_nvmestat); 6179 6180 snprintf(name, sizeof(name), "scsistat"); 6181 vport->debug_scsistat = 6182 debugfs_create_file(name, 0644, 6183 vport->vport_debugfs_root, 6184 vport, &lpfc_debugfs_op_scsistat); 6185 if (!vport->debug_scsistat) { 6186 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6187 "4611 Cannot create debugfs scsistat\n"); 6188 goto debug_failed; 6189 } 6190 6191 snprintf(name, sizeof(name), "ioktime"); 6192 vport->debug_ioktime = 6193 debugfs_create_file(name, 0644, 6194 vport->vport_debugfs_root, 6195 vport, &lpfc_debugfs_op_ioktime); 6196 if (!vport->debug_ioktime) { 6197 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6198 "0815 Cannot create debugfs ioktime\n"); 6199 goto debug_failed; 6200 } 6201 6202 snprintf(name, sizeof(name), "hdwqstat"); 6203 vport->debug_hdwqstat = 6204 debugfs_create_file(name, 0644, 6205 vport->vport_debugfs_root, 6206 vport, &lpfc_debugfs_op_hdwqstat); 6207 6208 /* 6209 * The following section is for additional directories/files for the 6210 * physical port. 6211 */ 6212 6213 if (!pport_setup) 6214 goto debug_failed; 6215 6216 /* 6217 * iDiag debugfs root entry points for SLI4 device only 6218 */ 6219 if (phba->sli_rev < LPFC_SLI_REV4) 6220 goto debug_failed; 6221 6222 snprintf(name, sizeof(name), "iDiag"); 6223 if (!phba->idiag_root) { 6224 phba->idiag_root = 6225 debugfs_create_dir(name, phba->hba_debugfs_root); 6226 /* Initialize iDiag data structure */ 6227 memset(&idiag, 0, sizeof(idiag)); 6228 } 6229 6230 /* iDiag read PCI config space */ 6231 snprintf(name, sizeof(name), "pciCfg"); 6232 if (!phba->idiag_pci_cfg) { 6233 phba->idiag_pci_cfg = 6234 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6235 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 6236 idiag.offset.last_rd = 0; 6237 } 6238 6239 /* iDiag PCI BAR access */ 6240 snprintf(name, sizeof(name), "barAcc"); 6241 if (!phba->idiag_bar_acc) { 6242 phba->idiag_bar_acc = 6243 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6244 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 6245 idiag.offset.last_rd = 0; 6246 } 6247 6248 /* iDiag get PCI function queue information */ 6249 snprintf(name, sizeof(name), "queInfo"); 6250 if (!phba->idiag_que_info) { 6251 phba->idiag_que_info = 6252 debugfs_create_file(name, S_IFREG|S_IRUGO, 6253 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 6254 } 6255 6256 /* iDiag access PCI function queue */ 6257 snprintf(name, sizeof(name), "queAcc"); 6258 if (!phba->idiag_que_acc) { 6259 phba->idiag_que_acc = 6260 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6261 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 6262 } 6263 6264 /* iDiag access PCI function doorbell registers */ 6265 snprintf(name, sizeof(name), "drbAcc"); 6266 if (!phba->idiag_drb_acc) { 6267 phba->idiag_drb_acc = 6268 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6269 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 6270 } 6271 6272 /* iDiag access PCI function control registers */ 6273 snprintf(name, sizeof(name), "ctlAcc"); 6274 if (!phba->idiag_ctl_acc) { 6275 phba->idiag_ctl_acc = 6276 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6277 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 6278 } 6279 6280 /* iDiag access mbox commands */ 6281 snprintf(name, sizeof(name), "mbxAcc"); 6282 if (!phba->idiag_mbx_acc) { 6283 phba->idiag_mbx_acc = 6284 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6285 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 6286 } 6287 6288 /* iDiag extents access commands */ 6289 if (phba->sli4_hba.extents_in_use) { 6290 snprintf(name, sizeof(name), "extAcc"); 6291 if (!phba->idiag_ext_acc) { 6292 phba->idiag_ext_acc = 6293 debugfs_create_file(name, 6294 S_IFREG|S_IRUGO|S_IWUSR, 6295 phba->idiag_root, phba, 6296 &lpfc_idiag_op_extAcc); 6297 } 6298 } 6299 6300 debug_failed: 6301 return; 6302 #endif 6303 } 6304 6305 /** 6306 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 6307 * @vport: The vport pointer to remove from debugfs. 6308 * 6309 * Description: 6310 * When Debugfs is configured this routine removes debugfs file system elements 6311 * that are specific to this vport. It also checks to see if there are any 6312 * users left for the debugfs directories associated with the HBA and driver. If 6313 * this is the last user of the HBA directory or driver directory then it will 6314 * remove those from the debugfs infrastructure as well. 6315 **/ 6316 inline void 6317 lpfc_debugfs_terminate(struct lpfc_vport *vport) 6318 { 6319 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6320 struct lpfc_hba *phba = vport->phba; 6321 6322 kfree(vport->disc_trc); 6323 vport->disc_trc = NULL; 6324 6325 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 6326 vport->debug_disc_trc = NULL; 6327 6328 debugfs_remove(vport->debug_nodelist); /* nodelist */ 6329 vport->debug_nodelist = NULL; 6330 6331 debugfs_remove(vport->debug_nvmestat); /* nvmestat */ 6332 vport->debug_nvmestat = NULL; 6333 6334 debugfs_remove(vport->debug_scsistat); /* scsistat */ 6335 vport->debug_scsistat = NULL; 6336 6337 debugfs_remove(vport->debug_ioktime); /* ioktime */ 6338 vport->debug_ioktime = NULL; 6339 6340 debugfs_remove(vport->debug_hdwqstat); /* hdwqstat */ 6341 vport->debug_hdwqstat = NULL; 6342 6343 if (vport->vport_debugfs_root) { 6344 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 6345 vport->vport_debugfs_root = NULL; 6346 atomic_dec(&phba->debugfs_vport_count); 6347 } 6348 6349 if (atomic_read(&phba->debugfs_vport_count) == 0) { 6350 6351 debugfs_remove(phba->debug_multixri_pools); /* multixripools*/ 6352 phba->debug_multixri_pools = NULL; 6353 6354 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 6355 phba->debug_hbqinfo = NULL; 6356 6357 debugfs_remove(phba->debug_ras_log); 6358 phba->debug_ras_log = NULL; 6359 6360 #ifdef LPFC_HDWQ_LOCK_STAT 6361 debugfs_remove(phba->debug_lockstat); /* lockstat */ 6362 phba->debug_lockstat = NULL; 6363 #endif 6364 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 6365 phba->debug_dumpHBASlim = NULL; 6366 6367 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 6368 phba->debug_dumpHostSlim = NULL; 6369 6370 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 6371 phba->debug_InjErrLBA = NULL; 6372 6373 debugfs_remove(phba->debug_InjErrNPortID); 6374 phba->debug_InjErrNPortID = NULL; 6375 6376 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 6377 phba->debug_InjErrWWPN = NULL; 6378 6379 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 6380 phba->debug_writeGuard = NULL; 6381 6382 debugfs_remove(phba->debug_writeApp); /* writeApp */ 6383 phba->debug_writeApp = NULL; 6384 6385 debugfs_remove(phba->debug_writeRef); /* writeRef */ 6386 phba->debug_writeRef = NULL; 6387 6388 debugfs_remove(phba->debug_readGuard); /* readGuard */ 6389 phba->debug_readGuard = NULL; 6390 6391 debugfs_remove(phba->debug_readApp); /* readApp */ 6392 phba->debug_readApp = NULL; 6393 6394 debugfs_remove(phba->debug_readRef); /* readRef */ 6395 phba->debug_readRef = NULL; 6396 6397 kfree(phba->slow_ring_trc); 6398 phba->slow_ring_trc = NULL; 6399 6400 /* slow_ring_trace */ 6401 debugfs_remove(phba->debug_slow_ring_trc); 6402 phba->debug_slow_ring_trc = NULL; 6403 6404 debugfs_remove(phba->debug_nvmeio_trc); 6405 phba->debug_nvmeio_trc = NULL; 6406 6407 kfree(phba->nvmeio_trc); 6408 phba->nvmeio_trc = NULL; 6409 6410 /* 6411 * iDiag release 6412 */ 6413 if (phba->sli_rev == LPFC_SLI_REV4) { 6414 /* iDiag extAcc */ 6415 debugfs_remove(phba->idiag_ext_acc); 6416 phba->idiag_ext_acc = NULL; 6417 6418 /* iDiag mbxAcc */ 6419 debugfs_remove(phba->idiag_mbx_acc); 6420 phba->idiag_mbx_acc = NULL; 6421 6422 /* iDiag ctlAcc */ 6423 debugfs_remove(phba->idiag_ctl_acc); 6424 phba->idiag_ctl_acc = NULL; 6425 6426 /* iDiag drbAcc */ 6427 debugfs_remove(phba->idiag_drb_acc); 6428 phba->idiag_drb_acc = NULL; 6429 6430 /* iDiag queAcc */ 6431 debugfs_remove(phba->idiag_que_acc); 6432 phba->idiag_que_acc = NULL; 6433 6434 /* iDiag queInfo */ 6435 debugfs_remove(phba->idiag_que_info); 6436 phba->idiag_que_info = NULL; 6437 6438 /* iDiag barAcc */ 6439 debugfs_remove(phba->idiag_bar_acc); 6440 phba->idiag_bar_acc = NULL; 6441 6442 /* iDiag pciCfg */ 6443 debugfs_remove(phba->idiag_pci_cfg); 6444 phba->idiag_pci_cfg = NULL; 6445 6446 /* Finally remove the iDiag debugfs root */ 6447 debugfs_remove(phba->idiag_root); 6448 phba->idiag_root = NULL; 6449 } 6450 6451 if (phba->hba_debugfs_root) { 6452 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 6453 phba->hba_debugfs_root = NULL; 6454 atomic_dec(&lpfc_debugfs_hba_count); 6455 } 6456 6457 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 6458 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 6459 lpfc_debugfs_root = NULL; 6460 } 6461 } 6462 #endif 6463 return; 6464 } 6465 6466 /* 6467 * Driver debug utility routines outside of debugfs. The debug utility 6468 * routines implemented here is intended to be used in the instrumented 6469 * debug driver for debugging host or port issues. 6470 */ 6471 6472 /** 6473 * lpfc_debug_dump_all_queues - dump all the queues with a hba 6474 * @phba: Pointer to HBA context object. 6475 * 6476 * This function dumps entries of all the queues asociated with the @phba. 6477 **/ 6478 void 6479 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 6480 { 6481 int idx; 6482 6483 /* 6484 * Dump Work Queues (WQs) 6485 */ 6486 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 6487 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 6488 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 6489 6490 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6491 lpfc_debug_dump_wq(phba, DUMP_IO, idx); 6492 6493 lpfc_debug_dump_hdr_rq(phba); 6494 lpfc_debug_dump_dat_rq(phba); 6495 /* 6496 * Dump Complete Queues (CQs) 6497 */ 6498 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 6499 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 6500 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 6501 6502 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6503 lpfc_debug_dump_cq(phba, DUMP_IO, idx); 6504 6505 /* 6506 * Dump Event Queues (EQs) 6507 */ 6508 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6509 lpfc_debug_dump_hba_eq(phba, idx); 6510 } 6511