1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2023 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_commonxripools_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%016llx ", 867 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 868 len += scnprintf(buf+len, size-len, 869 "WWNN x%016llx ", 870 wwn_to_u64(ndlp->nlp_nodename.u.wwn)); 871 len += scnprintf(buf+len, size-len, "RPI:x%04x ", 872 ndlp->nlp_rpi); 873 len += scnprintf(buf+len, size-len, "flag:x%08x ", 874 ndlp->nlp_flag); 875 if (!ndlp->nlp_type) 876 len += scnprintf(buf+len, size-len, "UNKNOWN_TYPE "); 877 if (ndlp->nlp_type & NLP_FC_NODE) 878 len += scnprintf(buf+len, size-len, "FC_NODE "); 879 if (ndlp->nlp_type & NLP_FABRIC) { 880 len += scnprintf(buf+len, size-len, "FABRIC "); 881 iocnt = 0; 882 } 883 if (ndlp->nlp_type & NLP_FCP_TARGET) 884 len += scnprintf(buf+len, size-len, "FCP_TGT sid:%d ", 885 ndlp->nlp_sid); 886 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 887 len += scnprintf(buf+len, size-len, "FCP_INITIATOR "); 888 if (ndlp->nlp_type & NLP_NVME_TARGET) 889 len += scnprintf(buf + len, 890 size - len, "NVME_TGT sid:%d ", 891 NLP_NO_SID); 892 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 893 len += scnprintf(buf + len, 894 size - len, "NVME_INITIATOR "); 895 len += scnprintf(buf+len, size-len, "refcnt:%d", 896 kref_read(&ndlp->kref)); 897 if (iocnt) { 898 i = atomic_read(&ndlp->cmd_pending); 899 len += scnprintf(buf + len, size - len, 900 " OutIO:x%x Qdepth x%x", 901 i, ndlp->cmd_qdepth); 902 outio += i; 903 } 904 len += scnprintf(buf+len, size-len, " xpt:x%x", 905 ndlp->fc4_xpt_flags); 906 if (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING) 907 len += scnprintf(buf+len, size-len, " defer:%x", 908 ndlp->nlp_defer_did); 909 len += scnprintf(buf+len, size-len, "\n"); 910 } 911 spin_unlock_irq(shost->host_lock); 912 913 len += scnprintf(buf + len, size - len, 914 "\nOutstanding IO x%x\n", outio); 915 916 if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) { 917 len += scnprintf(buf + len, size - len, 918 "\nNVME Targetport Entry ...\n"); 919 920 /* Port state is only one of two values for now. */ 921 if (phba->targetport->port_id) 922 statep = "REGISTERED"; 923 else 924 statep = "INIT"; 925 len += scnprintf(buf + len, size - len, 926 "TGT WWNN x%llx WWPN x%llx State %s\n", 927 wwn_to_u64(vport->fc_nodename.u.wwn), 928 wwn_to_u64(vport->fc_portname.u.wwn), 929 statep); 930 len += scnprintf(buf + len, size - len, 931 " Targetport DID x%06x\n", 932 phba->targetport->port_id); 933 goto out_exit; 934 } 935 936 len += scnprintf(buf + len, size - len, 937 "\nNVME Lport/Rport Entries ...\n"); 938 939 localport = vport->localport; 940 if (!localport) 941 goto out_exit; 942 943 spin_lock_irq(shost->host_lock); 944 945 /* Port state is only one of two values for now. */ 946 if (localport->port_id) 947 statep = "ONLINE"; 948 else 949 statep = "UNKNOWN "; 950 951 len += scnprintf(buf + len, size - len, 952 "Lport DID x%06x PortState %s\n", 953 localport->port_id, statep); 954 955 len += scnprintf(buf + len, size - len, "\tRport List:\n"); 956 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 957 /* local short-hand pointer. */ 958 spin_lock(&ndlp->lock); 959 rport = lpfc_ndlp_get_nrport(ndlp); 960 if (rport) 961 nrport = rport->remoteport; 962 else 963 nrport = NULL; 964 spin_unlock(&ndlp->lock); 965 if (!nrport) 966 continue; 967 968 /* Port state is only one of two values for now. */ 969 switch (nrport->port_state) { 970 case FC_OBJSTATE_ONLINE: 971 statep = "ONLINE"; 972 break; 973 case FC_OBJSTATE_UNKNOWN: 974 statep = "UNKNOWN "; 975 break; 976 default: 977 statep = "UNSUPPORTED"; 978 break; 979 } 980 981 /* Tab in to show lport ownership. */ 982 len += scnprintf(buf + len, size - len, 983 "\t%s Port ID:x%06x ", 984 statep, nrport->port_id); 985 len += scnprintf(buf + len, size - len, "WWPN x%llx ", 986 nrport->port_name); 987 len += scnprintf(buf + len, size - len, "WWNN x%llx ", 988 nrport->node_name); 989 990 /* An NVME rport can have multiple roles. */ 991 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) 992 len += scnprintf(buf + len, size - len, 993 "INITIATOR "); 994 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) 995 len += scnprintf(buf + len, size - len, 996 "TARGET "); 997 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) 998 len += scnprintf(buf + len, size - len, 999 "DISCSRVC "); 1000 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 1001 FC_PORT_ROLE_NVME_TARGET | 1002 FC_PORT_ROLE_NVME_DISCOVERY)) 1003 len += scnprintf(buf + len, size - len, 1004 "UNKNOWN ROLE x%x", 1005 nrport->port_role); 1006 /* Terminate the string. */ 1007 len += scnprintf(buf + len, size - len, "\n"); 1008 } 1009 1010 spin_unlock_irq(shost->host_lock); 1011 out_exit: 1012 return len; 1013 } 1014 1015 /** 1016 * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer 1017 * @vport: The vport to gather target node info from. 1018 * @buf: The buffer to dump log into. 1019 * @size: The maximum amount of data to process. 1020 * 1021 * Description: 1022 * This routine dumps the NVME statistics associated with @vport 1023 * 1024 * Return Value: 1025 * This routine returns the amount of bytes that were dumped into @buf and will 1026 * not exceed @size. 1027 **/ 1028 static int 1029 lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size) 1030 { 1031 struct lpfc_hba *phba = vport->phba; 1032 struct lpfc_nvmet_tgtport *tgtp; 1033 struct lpfc_async_xchg_ctx *ctxp, *next_ctxp; 1034 struct nvme_fc_local_port *localport; 1035 struct lpfc_fc4_ctrl_stat *cstat; 1036 struct lpfc_nvme_lport *lport; 1037 uint64_t data1, data2, data3; 1038 uint64_t tot, totin, totout; 1039 int cnt, i; 1040 int len = 0; 1041 1042 if (phba->nvmet_support) { 1043 if (!phba->targetport) 1044 return len; 1045 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 1046 len += scnprintf(buf + len, size - len, 1047 "\nNVME Targetport Statistics\n"); 1048 1049 len += scnprintf(buf + len, size - len, 1050 "LS: Rcv %08x Drop %08x Abort %08x\n", 1051 atomic_read(&tgtp->rcv_ls_req_in), 1052 atomic_read(&tgtp->rcv_ls_req_drop), 1053 atomic_read(&tgtp->xmt_ls_abort)); 1054 if (atomic_read(&tgtp->rcv_ls_req_in) != 1055 atomic_read(&tgtp->rcv_ls_req_out)) { 1056 len += scnprintf(buf + len, size - len, 1057 "Rcv LS: in %08x != out %08x\n", 1058 atomic_read(&tgtp->rcv_ls_req_in), 1059 atomic_read(&tgtp->rcv_ls_req_out)); 1060 } 1061 1062 len += scnprintf(buf + len, size - len, 1063 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 1064 atomic_read(&tgtp->xmt_ls_rsp), 1065 atomic_read(&tgtp->xmt_ls_drop), 1066 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 1067 1068 len += scnprintf(buf + len, size - len, 1069 "LS: RSP Abort %08x xb %08x Err %08x\n", 1070 atomic_read(&tgtp->xmt_ls_rsp_aborted), 1071 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 1072 atomic_read(&tgtp->xmt_ls_rsp_error)); 1073 1074 len += scnprintf(buf + len, size - len, 1075 "FCP: Rcv %08x Defer %08x Release %08x " 1076 "Drop %08x\n", 1077 atomic_read(&tgtp->rcv_fcp_cmd_in), 1078 atomic_read(&tgtp->rcv_fcp_cmd_defer), 1079 atomic_read(&tgtp->xmt_fcp_release), 1080 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 1081 1082 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 1083 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 1084 len += scnprintf(buf + len, size - len, 1085 "Rcv FCP: in %08x != out %08x\n", 1086 atomic_read(&tgtp->rcv_fcp_cmd_in), 1087 atomic_read(&tgtp->rcv_fcp_cmd_out)); 1088 } 1089 1090 len += scnprintf(buf + len, size - len, 1091 "FCP Rsp: read %08x readrsp %08x " 1092 "write %08x rsp %08x\n", 1093 atomic_read(&tgtp->xmt_fcp_read), 1094 atomic_read(&tgtp->xmt_fcp_read_rsp), 1095 atomic_read(&tgtp->xmt_fcp_write), 1096 atomic_read(&tgtp->xmt_fcp_rsp)); 1097 1098 len += scnprintf(buf + len, size - len, 1099 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 1100 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 1101 atomic_read(&tgtp->xmt_fcp_rsp_error), 1102 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 1103 1104 len += scnprintf(buf + len, size - len, 1105 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 1106 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 1107 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 1108 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 1109 1110 len += scnprintf(buf + len, size - len, 1111 "ABORT: Xmt %08x Cmpl %08x\n", 1112 atomic_read(&tgtp->xmt_fcp_abort), 1113 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 1114 1115 len += scnprintf(buf + len, size - len, 1116 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x", 1117 atomic_read(&tgtp->xmt_abort_sol), 1118 atomic_read(&tgtp->xmt_abort_unsol), 1119 atomic_read(&tgtp->xmt_abort_rsp), 1120 atomic_read(&tgtp->xmt_abort_rsp_error)); 1121 1122 len += scnprintf(buf + len, size - len, "\n"); 1123 1124 cnt = 0; 1125 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1126 list_for_each_entry_safe(ctxp, next_ctxp, 1127 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1128 list) { 1129 cnt++; 1130 } 1131 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1132 if (cnt) { 1133 len += scnprintf(buf + len, size - len, 1134 "ABORT: %d ctx entries\n", cnt); 1135 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1136 list_for_each_entry_safe(ctxp, next_ctxp, 1137 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1138 list) { 1139 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) 1140 break; 1141 len += scnprintf(buf + len, size - len, 1142 "Entry: oxid %x state %x " 1143 "flag %x\n", 1144 ctxp->oxid, ctxp->state, 1145 ctxp->flag); 1146 } 1147 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1148 } 1149 1150 /* Calculate outstanding IOs */ 1151 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 1152 tot += atomic_read(&tgtp->xmt_fcp_release); 1153 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 1154 1155 len += scnprintf(buf + len, size - len, 1156 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 1157 "CTX Outstanding %08llx\n", 1158 phba->sli4_hba.nvmet_xri_cnt, 1159 phba->sli4_hba.nvmet_io_wait_cnt, 1160 phba->sli4_hba.nvmet_io_wait_total, 1161 tot); 1162 } else { 1163 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 1164 return len; 1165 1166 localport = vport->localport; 1167 if (!localport) 1168 return len; 1169 lport = (struct lpfc_nvme_lport *)localport->private; 1170 if (!lport) 1171 return len; 1172 1173 len += scnprintf(buf + len, size - len, 1174 "\nNVME HDWQ Statistics\n"); 1175 1176 len += scnprintf(buf + len, size - len, 1177 "LS: Xmt %016x Cmpl %016x\n", 1178 atomic_read(&lport->fc4NvmeLsRequests), 1179 atomic_read(&lport->fc4NvmeLsCmpls)); 1180 1181 totin = 0; 1182 totout = 0; 1183 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1184 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 1185 tot = cstat->io_cmpls; 1186 totin += tot; 1187 data1 = cstat->input_requests; 1188 data2 = cstat->output_requests; 1189 data3 = cstat->control_requests; 1190 totout += (data1 + data2 + data3); 1191 1192 /* Limit to 32, debugfs display buffer limitation */ 1193 if (i >= 32) 1194 continue; 1195 1196 len += scnprintf(buf + len, PAGE_SIZE - len, 1197 "HDWQ (%d): Rd %016llx Wr %016llx " 1198 "IO %016llx ", 1199 i, data1, data2, data3); 1200 len += scnprintf(buf + len, PAGE_SIZE - len, 1201 "Cmpl %016llx OutIO %016llx\n", 1202 tot, ((data1 + data2 + data3) - tot)); 1203 } 1204 len += scnprintf(buf + len, PAGE_SIZE - len, 1205 "Total FCP Cmpl %016llx Issue %016llx " 1206 "OutIO %016llx\n", 1207 totin, totout, totout - totin); 1208 1209 len += scnprintf(buf + len, size - len, 1210 "LS Xmt Err: Abrt %08x Err %08x " 1211 "Cmpl Err: xb %08x Err %08x\n", 1212 atomic_read(&lport->xmt_ls_abort), 1213 atomic_read(&lport->xmt_ls_err), 1214 atomic_read(&lport->cmpl_ls_xb), 1215 atomic_read(&lport->cmpl_ls_err)); 1216 1217 len += scnprintf(buf + len, size - len, 1218 "FCP Xmt Err: noxri %06x nondlp %06x " 1219 "qdepth %06x wqerr %06x err %06x Abrt %06x\n", 1220 atomic_read(&lport->xmt_fcp_noxri), 1221 atomic_read(&lport->xmt_fcp_bad_ndlp), 1222 atomic_read(&lport->xmt_fcp_qdepth), 1223 atomic_read(&lport->xmt_fcp_wqerr), 1224 atomic_read(&lport->xmt_fcp_err), 1225 atomic_read(&lport->xmt_fcp_abort)); 1226 1227 len += scnprintf(buf + len, size - len, 1228 "FCP Cmpl Err: xb %08x Err %08x\n", 1229 atomic_read(&lport->cmpl_fcp_xb), 1230 atomic_read(&lport->cmpl_fcp_err)); 1231 1232 } 1233 1234 return len; 1235 } 1236 1237 /** 1238 * lpfc_debugfs_scsistat_data - Dump target node list to a buffer 1239 * @vport: The vport to gather target node info from. 1240 * @buf: The buffer to dump log into. 1241 * @size: The maximum amount of data to process. 1242 * 1243 * Description: 1244 * This routine dumps the SCSI statistics associated with @vport 1245 * 1246 * Return Value: 1247 * This routine returns the amount of bytes that were dumped into @buf and will 1248 * not exceed @size. 1249 **/ 1250 static int 1251 lpfc_debugfs_scsistat_data(struct lpfc_vport *vport, char *buf, int size) 1252 { 1253 int len; 1254 struct lpfc_hba *phba = vport->phba; 1255 struct lpfc_fc4_ctrl_stat *cstat; 1256 u64 data1, data2, data3; 1257 u64 tot, totin, totout; 1258 int i; 1259 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 1260 1261 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 1262 (phba->sli_rev != LPFC_SLI_REV4)) 1263 return 0; 1264 1265 scnprintf(buf, size, "SCSI HDWQ Statistics\n"); 1266 1267 totin = 0; 1268 totout = 0; 1269 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1270 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 1271 tot = cstat->io_cmpls; 1272 totin += tot; 1273 data1 = cstat->input_requests; 1274 data2 = cstat->output_requests; 1275 data3 = cstat->control_requests; 1276 totout += (data1 + data2 + data3); 1277 1278 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 1279 "IO %016llx ", i, data1, data2, data3); 1280 if (strlcat(buf, tmp, size) >= size) 1281 goto buffer_done; 1282 1283 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 1284 tot, ((data1 + data2 + data3) - tot)); 1285 if (strlcat(buf, tmp, size) >= size) 1286 goto buffer_done; 1287 } 1288 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 1289 "OutIO %016llx\n", totin, totout, totout - totin); 1290 strlcat(buf, tmp, size); 1291 1292 buffer_done: 1293 len = strnlen(buf, size); 1294 1295 return len; 1296 } 1297 1298 void 1299 lpfc_io_ktime(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) 1300 { 1301 uint64_t seg1, seg2, seg3, seg4; 1302 uint64_t segsum; 1303 1304 if (!lpfc_cmd->ts_last_cmd || 1305 !lpfc_cmd->ts_cmd_start || 1306 !lpfc_cmd->ts_cmd_wqput || 1307 !lpfc_cmd->ts_isr_cmpl || 1308 !lpfc_cmd->ts_data_io) 1309 return; 1310 1311 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_cmd_start) 1312 return; 1313 if (lpfc_cmd->ts_cmd_start < lpfc_cmd->ts_last_cmd) 1314 return; 1315 if (lpfc_cmd->ts_cmd_wqput < lpfc_cmd->ts_cmd_start) 1316 return; 1317 if (lpfc_cmd->ts_isr_cmpl < lpfc_cmd->ts_cmd_wqput) 1318 return; 1319 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_isr_cmpl) 1320 return; 1321 /* 1322 * Segment 1 - Time from Last FCP command cmpl is handed 1323 * off to NVME Layer to start of next command. 1324 * Segment 2 - Time from Driver receives a IO cmd start 1325 * from NVME Layer to WQ put is done on IO cmd. 1326 * Segment 3 - Time from Driver WQ put is done on IO cmd 1327 * to MSI-X ISR for IO cmpl. 1328 * Segment 4 - Time from MSI-X ISR for IO cmpl to when 1329 * cmpl is handled off to the NVME Layer. 1330 */ 1331 seg1 = lpfc_cmd->ts_cmd_start - lpfc_cmd->ts_last_cmd; 1332 if (seg1 > 5000000) /* 5 ms - for sequential IOs only */ 1333 seg1 = 0; 1334 1335 /* Calculate times relative to start of IO */ 1336 seg2 = (lpfc_cmd->ts_cmd_wqput - lpfc_cmd->ts_cmd_start); 1337 segsum = seg2; 1338 seg3 = lpfc_cmd->ts_isr_cmpl - lpfc_cmd->ts_cmd_start; 1339 if (segsum > seg3) 1340 return; 1341 seg3 -= segsum; 1342 segsum += seg3; 1343 1344 seg4 = lpfc_cmd->ts_data_io - lpfc_cmd->ts_cmd_start; 1345 if (segsum > seg4) 1346 return; 1347 seg4 -= segsum; 1348 1349 phba->ktime_data_samples++; 1350 phba->ktime_seg1_total += seg1; 1351 if (seg1 < phba->ktime_seg1_min) 1352 phba->ktime_seg1_min = seg1; 1353 else if (seg1 > phba->ktime_seg1_max) 1354 phba->ktime_seg1_max = seg1; 1355 phba->ktime_seg2_total += seg2; 1356 if (seg2 < phba->ktime_seg2_min) 1357 phba->ktime_seg2_min = seg2; 1358 else if (seg2 > phba->ktime_seg2_max) 1359 phba->ktime_seg2_max = seg2; 1360 phba->ktime_seg3_total += seg3; 1361 if (seg3 < phba->ktime_seg3_min) 1362 phba->ktime_seg3_min = seg3; 1363 else if (seg3 > phba->ktime_seg3_max) 1364 phba->ktime_seg3_max = seg3; 1365 phba->ktime_seg4_total += seg4; 1366 if (seg4 < phba->ktime_seg4_min) 1367 phba->ktime_seg4_min = seg4; 1368 else if (seg4 > phba->ktime_seg4_max) 1369 phba->ktime_seg4_max = seg4; 1370 1371 lpfc_cmd->ts_last_cmd = 0; 1372 lpfc_cmd->ts_cmd_start = 0; 1373 lpfc_cmd->ts_cmd_wqput = 0; 1374 lpfc_cmd->ts_isr_cmpl = 0; 1375 lpfc_cmd->ts_data_io = 0; 1376 } 1377 1378 /** 1379 * lpfc_debugfs_ioktime_data - Dump target node list to a buffer 1380 * @vport: The vport to gather target node info from. 1381 * @buf: The buffer to dump log into. 1382 * @size: The maximum amount of data to process. 1383 * 1384 * Description: 1385 * This routine dumps the NVME statistics associated with @vport 1386 * 1387 * Return Value: 1388 * This routine returns the amount of bytes that were dumped into @buf and will 1389 * not exceed @size. 1390 **/ 1391 static int 1392 lpfc_debugfs_ioktime_data(struct lpfc_vport *vport, char *buf, int size) 1393 { 1394 struct lpfc_hba *phba = vport->phba; 1395 int len = 0; 1396 1397 if (phba->nvmet_support == 0) { 1398 /* Initiator */ 1399 len += scnprintf(buf + len, PAGE_SIZE - len, 1400 "ktime %s: Total Samples: %lld\n", 1401 (phba->ktime_on ? "Enabled" : "Disabled"), 1402 phba->ktime_data_samples); 1403 if (phba->ktime_data_samples == 0) 1404 return len; 1405 1406 len += scnprintf( 1407 buf + len, PAGE_SIZE - len, 1408 "Segment 1: Last Cmd cmpl " 1409 "done -to- Start of next Cmd (in driver)\n"); 1410 len += scnprintf( 1411 buf + len, PAGE_SIZE - len, 1412 "avg:%08lld min:%08lld max %08lld\n", 1413 div_u64(phba->ktime_seg1_total, 1414 phba->ktime_data_samples), 1415 phba->ktime_seg1_min, 1416 phba->ktime_seg1_max); 1417 len += scnprintf( 1418 buf + len, PAGE_SIZE - len, 1419 "Segment 2: Driver start of Cmd " 1420 "-to- Firmware WQ doorbell\n"); 1421 len += scnprintf( 1422 buf + len, PAGE_SIZE - len, 1423 "avg:%08lld min:%08lld max %08lld\n", 1424 div_u64(phba->ktime_seg2_total, 1425 phba->ktime_data_samples), 1426 phba->ktime_seg2_min, 1427 phba->ktime_seg2_max); 1428 len += scnprintf( 1429 buf + len, PAGE_SIZE - len, 1430 "Segment 3: Firmware WQ doorbell -to- " 1431 "MSI-X ISR cmpl\n"); 1432 len += scnprintf( 1433 buf + len, PAGE_SIZE - len, 1434 "avg:%08lld min:%08lld max %08lld\n", 1435 div_u64(phba->ktime_seg3_total, 1436 phba->ktime_data_samples), 1437 phba->ktime_seg3_min, 1438 phba->ktime_seg3_max); 1439 len += scnprintf( 1440 buf + len, PAGE_SIZE - len, 1441 "Segment 4: MSI-X ISR cmpl -to- " 1442 "Cmd cmpl done\n"); 1443 len += scnprintf( 1444 buf + len, PAGE_SIZE - len, 1445 "avg:%08lld min:%08lld max %08lld\n", 1446 div_u64(phba->ktime_seg4_total, 1447 phba->ktime_data_samples), 1448 phba->ktime_seg4_min, 1449 phba->ktime_seg4_max); 1450 len += scnprintf( 1451 buf + len, PAGE_SIZE - len, 1452 "Total IO avg time: %08lld\n", 1453 div_u64(phba->ktime_seg1_total + 1454 phba->ktime_seg2_total + 1455 phba->ktime_seg3_total + 1456 phba->ktime_seg4_total, 1457 phba->ktime_data_samples)); 1458 return len; 1459 } 1460 1461 /* NVME Target */ 1462 len += scnprintf(buf + len, PAGE_SIZE-len, 1463 "ktime %s: Total Samples: %lld %lld\n", 1464 (phba->ktime_on ? "Enabled" : "Disabled"), 1465 phba->ktime_data_samples, 1466 phba->ktime_status_samples); 1467 if (phba->ktime_data_samples == 0) 1468 return len; 1469 1470 len += scnprintf(buf + len, PAGE_SIZE-len, 1471 "Segment 1: MSI-X ISR Rcv cmd -to- " 1472 "cmd pass to NVME Layer\n"); 1473 len += scnprintf(buf + len, PAGE_SIZE-len, 1474 "avg:%08lld min:%08lld max %08lld\n", 1475 div_u64(phba->ktime_seg1_total, 1476 phba->ktime_data_samples), 1477 phba->ktime_seg1_min, 1478 phba->ktime_seg1_max); 1479 len += scnprintf(buf + len, PAGE_SIZE-len, 1480 "Segment 2: cmd pass to NVME Layer- " 1481 "-to- Driver rcv cmd OP (action)\n"); 1482 len += scnprintf(buf + len, PAGE_SIZE-len, 1483 "avg:%08lld min:%08lld max %08lld\n", 1484 div_u64(phba->ktime_seg2_total, 1485 phba->ktime_data_samples), 1486 phba->ktime_seg2_min, 1487 phba->ktime_seg2_max); 1488 len += scnprintf(buf + len, PAGE_SIZE-len, 1489 "Segment 3: Driver rcv cmd OP -to- " 1490 "Firmware WQ doorbell: cmd\n"); 1491 len += scnprintf(buf + len, PAGE_SIZE-len, 1492 "avg:%08lld min:%08lld max %08lld\n", 1493 div_u64(phba->ktime_seg3_total, 1494 phba->ktime_data_samples), 1495 phba->ktime_seg3_min, 1496 phba->ktime_seg3_max); 1497 len += scnprintf(buf + len, PAGE_SIZE-len, 1498 "Segment 4: Firmware WQ doorbell: cmd " 1499 "-to- MSI-X ISR for cmd cmpl\n"); 1500 len += scnprintf(buf + len, PAGE_SIZE-len, 1501 "avg:%08lld min:%08lld max %08lld\n", 1502 div_u64(phba->ktime_seg4_total, 1503 phba->ktime_data_samples), 1504 phba->ktime_seg4_min, 1505 phba->ktime_seg4_max); 1506 len += scnprintf(buf + len, PAGE_SIZE-len, 1507 "Segment 5: MSI-X ISR for cmd cmpl " 1508 "-to- NVME layer passed cmd done\n"); 1509 len += scnprintf(buf + len, PAGE_SIZE-len, 1510 "avg:%08lld min:%08lld max %08lld\n", 1511 div_u64(phba->ktime_seg5_total, 1512 phba->ktime_data_samples), 1513 phba->ktime_seg5_min, 1514 phba->ktime_seg5_max); 1515 1516 if (phba->ktime_status_samples == 0) { 1517 len += scnprintf(buf + len, PAGE_SIZE-len, 1518 "Total: cmd received by MSI-X ISR " 1519 "-to- cmd completed on wire\n"); 1520 len += scnprintf(buf + len, PAGE_SIZE-len, 1521 "avg:%08lld min:%08lld " 1522 "max %08lld\n", 1523 div_u64(phba->ktime_seg10_total, 1524 phba->ktime_data_samples), 1525 phba->ktime_seg10_min, 1526 phba->ktime_seg10_max); 1527 return len; 1528 } 1529 1530 len += scnprintf(buf + len, PAGE_SIZE-len, 1531 "Segment 6: NVME layer passed cmd done " 1532 "-to- Driver rcv rsp status OP\n"); 1533 len += scnprintf(buf + len, PAGE_SIZE-len, 1534 "avg:%08lld min:%08lld max %08lld\n", 1535 div_u64(phba->ktime_seg6_total, 1536 phba->ktime_status_samples), 1537 phba->ktime_seg6_min, 1538 phba->ktime_seg6_max); 1539 len += scnprintf(buf + len, PAGE_SIZE-len, 1540 "Segment 7: Driver rcv rsp status OP " 1541 "-to- Firmware WQ doorbell: status\n"); 1542 len += scnprintf(buf + len, PAGE_SIZE-len, 1543 "avg:%08lld min:%08lld max %08lld\n", 1544 div_u64(phba->ktime_seg7_total, 1545 phba->ktime_status_samples), 1546 phba->ktime_seg7_min, 1547 phba->ktime_seg7_max); 1548 len += scnprintf(buf + len, PAGE_SIZE-len, 1549 "Segment 8: Firmware WQ doorbell: status" 1550 " -to- MSI-X ISR for status cmpl\n"); 1551 len += scnprintf(buf + len, PAGE_SIZE-len, 1552 "avg:%08lld min:%08lld max %08lld\n", 1553 div_u64(phba->ktime_seg8_total, 1554 phba->ktime_status_samples), 1555 phba->ktime_seg8_min, 1556 phba->ktime_seg8_max); 1557 len += scnprintf(buf + len, PAGE_SIZE-len, 1558 "Segment 9: MSI-X ISR for status cmpl " 1559 "-to- NVME layer passed status done\n"); 1560 len += scnprintf(buf + len, PAGE_SIZE-len, 1561 "avg:%08lld min:%08lld max %08lld\n", 1562 div_u64(phba->ktime_seg9_total, 1563 phba->ktime_status_samples), 1564 phba->ktime_seg9_min, 1565 phba->ktime_seg9_max); 1566 len += scnprintf(buf + len, PAGE_SIZE-len, 1567 "Total: cmd received by MSI-X ISR -to- " 1568 "cmd completed on wire\n"); 1569 len += scnprintf(buf + len, PAGE_SIZE-len, 1570 "avg:%08lld min:%08lld max %08lld\n", 1571 div_u64(phba->ktime_seg10_total, 1572 phba->ktime_status_samples), 1573 phba->ktime_seg10_min, 1574 phba->ktime_seg10_max); 1575 return len; 1576 } 1577 1578 /** 1579 * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer 1580 * @phba: The phba to gather target node info from. 1581 * @buf: The buffer to dump log into. 1582 * @size: The maximum amount of data to process. 1583 * 1584 * Description: 1585 * This routine dumps the NVME IO trace associated with @phba 1586 * 1587 * Return Value: 1588 * This routine returns the amount of bytes that were dumped into @buf and will 1589 * not exceed @size. 1590 **/ 1591 static int 1592 lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size) 1593 { 1594 struct lpfc_debugfs_nvmeio_trc *dtp; 1595 int i, state, index, skip; 1596 int len = 0; 1597 1598 state = phba->nvmeio_trc_on; 1599 1600 index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) & 1601 (phba->nvmeio_trc_size - 1); 1602 skip = phba->nvmeio_trc_output_idx; 1603 1604 len += scnprintf(buf + len, size - len, 1605 "%s IO Trace %s: next_idx %d skip %d size %d\n", 1606 (phba->nvmet_support ? "NVME" : "NVMET"), 1607 (state ? "Enabled" : "Disabled"), 1608 index, skip, phba->nvmeio_trc_size); 1609 1610 if (!phba->nvmeio_trc || state) 1611 return len; 1612 1613 /* trace MUST bhe off to continue */ 1614 1615 for (i = index; i < phba->nvmeio_trc_size; i++) { 1616 if (skip) { 1617 skip--; 1618 continue; 1619 } 1620 dtp = phba->nvmeio_trc + i; 1621 phba->nvmeio_trc_output_idx++; 1622 1623 if (!dtp->fmt) 1624 continue; 1625 1626 len += scnprintf(buf + len, size - len, dtp->fmt, 1627 dtp->data1, dtp->data2, dtp->data3); 1628 1629 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1630 phba->nvmeio_trc_output_idx = 0; 1631 len += scnprintf(buf + len, size - len, 1632 "Trace Complete\n"); 1633 goto out; 1634 } 1635 1636 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1637 len += scnprintf(buf + len, size - len, 1638 "Trace Continue (%d of %d)\n", 1639 phba->nvmeio_trc_output_idx, 1640 phba->nvmeio_trc_size); 1641 goto out; 1642 } 1643 } 1644 for (i = 0; i < index; i++) { 1645 if (skip) { 1646 skip--; 1647 continue; 1648 } 1649 dtp = phba->nvmeio_trc + i; 1650 phba->nvmeio_trc_output_idx++; 1651 1652 if (!dtp->fmt) 1653 continue; 1654 1655 len += scnprintf(buf + len, size - len, dtp->fmt, 1656 dtp->data1, dtp->data2, dtp->data3); 1657 1658 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1659 phba->nvmeio_trc_output_idx = 0; 1660 len += scnprintf(buf + len, size - len, 1661 "Trace Complete\n"); 1662 goto out; 1663 } 1664 1665 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1666 len += scnprintf(buf + len, size - len, 1667 "Trace Continue (%d of %d)\n", 1668 phba->nvmeio_trc_output_idx, 1669 phba->nvmeio_trc_size); 1670 goto out; 1671 } 1672 } 1673 1674 len += scnprintf(buf + len, size - len, 1675 "Trace Done\n"); 1676 out: 1677 return len; 1678 } 1679 1680 /** 1681 * lpfc_debugfs_hdwqstat_data - Dump I/O stats to a buffer 1682 * @vport: The vport to gather target node info from. 1683 * @buf: The buffer to dump log into. 1684 * @size: The maximum amount of data to process. 1685 * 1686 * Description: 1687 * This routine dumps the NVME + SCSI statistics associated with @vport 1688 * 1689 * Return Value: 1690 * This routine returns the amount of bytes that were dumped into @buf and will 1691 * not exceed @size. 1692 **/ 1693 static int 1694 lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size) 1695 { 1696 struct lpfc_hba *phba = vport->phba; 1697 struct lpfc_hdwq_stat *c_stat; 1698 int i, j, len; 1699 uint32_t tot_xmt; 1700 uint32_t tot_rcv; 1701 uint32_t tot_cmpl; 1702 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 1703 1704 scnprintf(tmp, sizeof(tmp), "HDWQ Stats:\n\n"); 1705 if (strlcat(buf, tmp, size) >= size) 1706 goto buffer_done; 1707 1708 scnprintf(tmp, sizeof(tmp), "(NVME Accounting: %s) ", 1709 (phba->hdwqstat_on & 1710 (LPFC_CHECK_NVME_IO | LPFC_CHECK_NVMET_IO) ? 1711 "Enabled" : "Disabled")); 1712 if (strlcat(buf, tmp, size) >= size) 1713 goto buffer_done; 1714 1715 scnprintf(tmp, sizeof(tmp), "(SCSI Accounting: %s) ", 1716 (phba->hdwqstat_on & LPFC_CHECK_SCSI_IO ? 1717 "Enabled" : "Disabled")); 1718 if (strlcat(buf, tmp, size) >= size) 1719 goto buffer_done; 1720 1721 scnprintf(tmp, sizeof(tmp), "\n\n"); 1722 if (strlcat(buf, tmp, size) >= size) 1723 goto buffer_done; 1724 1725 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1726 tot_rcv = 0; 1727 tot_xmt = 0; 1728 tot_cmpl = 0; 1729 1730 for_each_present_cpu(j) { 1731 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, j); 1732 1733 /* Only display for this HDWQ */ 1734 if (i != c_stat->hdwq_no) 1735 continue; 1736 1737 /* Only display non-zero counters */ 1738 if (!c_stat->xmt_io && !c_stat->cmpl_io && 1739 !c_stat->rcv_io) 1740 continue; 1741 1742 if (!tot_xmt && !tot_cmpl && !tot_rcv) { 1743 /* Print HDWQ string only the first time */ 1744 scnprintf(tmp, sizeof(tmp), "[HDWQ %d]:\t", i); 1745 if (strlcat(buf, tmp, size) >= size) 1746 goto buffer_done; 1747 } 1748 1749 tot_xmt += c_stat->xmt_io; 1750 tot_cmpl += c_stat->cmpl_io; 1751 if (phba->nvmet_support) 1752 tot_rcv += c_stat->rcv_io; 1753 1754 scnprintf(tmp, sizeof(tmp), "| [CPU %d]: ", j); 1755 if (strlcat(buf, tmp, size) >= size) 1756 goto buffer_done; 1757 1758 if (phba->nvmet_support) { 1759 scnprintf(tmp, sizeof(tmp), 1760 "XMT 0x%x CMPL 0x%x RCV 0x%x |", 1761 c_stat->xmt_io, c_stat->cmpl_io, 1762 c_stat->rcv_io); 1763 if (strlcat(buf, tmp, size) >= size) 1764 goto buffer_done; 1765 } else { 1766 scnprintf(tmp, sizeof(tmp), 1767 "XMT 0x%x CMPL 0x%x |", 1768 c_stat->xmt_io, c_stat->cmpl_io); 1769 if (strlcat(buf, tmp, size) >= size) 1770 goto buffer_done; 1771 } 1772 } 1773 1774 /* Check if nothing to display */ 1775 if (!tot_xmt && !tot_cmpl && !tot_rcv) 1776 continue; 1777 1778 scnprintf(tmp, sizeof(tmp), "\t->\t[HDWQ Total: "); 1779 if (strlcat(buf, tmp, size) >= size) 1780 goto buffer_done; 1781 1782 if (phba->nvmet_support) { 1783 scnprintf(tmp, sizeof(tmp), 1784 "XMT 0x%x CMPL 0x%x RCV 0x%x]\n\n", 1785 tot_xmt, tot_cmpl, tot_rcv); 1786 if (strlcat(buf, tmp, size) >= size) 1787 goto buffer_done; 1788 } else { 1789 scnprintf(tmp, sizeof(tmp), 1790 "XMT 0x%x CMPL 0x%x]\n\n", 1791 tot_xmt, tot_cmpl); 1792 if (strlcat(buf, tmp, size) >= size) 1793 goto buffer_done; 1794 } 1795 } 1796 1797 buffer_done: 1798 len = strnlen(buf, size); 1799 return len; 1800 } 1801 1802 #endif 1803 1804 /** 1805 * lpfc_debugfs_disc_trc - Store discovery trace log 1806 * @vport: The vport to associate this trace string with for retrieval. 1807 * @mask: Log entry classification. 1808 * @fmt: Format string to be displayed when dumping the log. 1809 * @data1: 1st data parameter to be applied to @fmt. 1810 * @data2: 2nd data parameter to be applied to @fmt. 1811 * @data3: 3rd data parameter to be applied to @fmt. 1812 * 1813 * Description: 1814 * This routine is used by the driver code to add a debugfs log entry to the 1815 * discovery trace buffer associated with @vport. Only entries with a @mask that 1816 * match the current debugfs discovery mask will be saved. Entries that do not 1817 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 1818 * printf when displaying the log. 1819 **/ 1820 inline void 1821 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 1822 uint32_t data1, uint32_t data2, uint32_t data3) 1823 { 1824 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1825 struct lpfc_debugfs_trc *dtp; 1826 int index; 1827 1828 if (!(lpfc_debugfs_mask_disc_trc & mask)) 1829 return; 1830 1831 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 1832 !vport || !vport->disc_trc) 1833 return; 1834 1835 index = atomic_inc_return(&vport->disc_trc_cnt) & 1836 (lpfc_debugfs_max_disc_trc - 1); 1837 dtp = vport->disc_trc + index; 1838 dtp->fmt = fmt; 1839 dtp->data1 = data1; 1840 dtp->data2 = data2; 1841 dtp->data3 = data3; 1842 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1843 dtp->jif = jiffies; 1844 #endif 1845 return; 1846 } 1847 1848 /** 1849 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 1850 * @phba: The phba to associate this trace string with for retrieval. 1851 * @fmt: Format string to be displayed when dumping the log. 1852 * @data1: 1st data parameter to be applied to @fmt. 1853 * @data2: 2nd data parameter to be applied to @fmt. 1854 * @data3: 3rd data parameter to be applied to @fmt. 1855 * 1856 * Description: 1857 * This routine is used by the driver code to add a debugfs log entry to the 1858 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 1859 * @data3 are used like printf when displaying the log. 1860 **/ 1861 inline void 1862 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 1863 uint32_t data1, uint32_t data2, uint32_t data3) 1864 { 1865 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1866 struct lpfc_debugfs_trc *dtp; 1867 int index; 1868 1869 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 1870 !phba || !phba->slow_ring_trc) 1871 return; 1872 1873 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 1874 (lpfc_debugfs_max_slow_ring_trc - 1); 1875 dtp = phba->slow_ring_trc + index; 1876 dtp->fmt = fmt; 1877 dtp->data1 = data1; 1878 dtp->data2 = data2; 1879 dtp->data3 = data3; 1880 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1881 dtp->jif = jiffies; 1882 #endif 1883 return; 1884 } 1885 1886 /** 1887 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log 1888 * @phba: The phba to associate this trace string with for retrieval. 1889 * @fmt: Format string to be displayed when dumping the log. 1890 * @data1: 1st data parameter to be applied to @fmt. 1891 * @data2: 2nd data parameter to be applied to @fmt. 1892 * @data3: 3rd data parameter to be applied to @fmt. 1893 * 1894 * Description: 1895 * This routine is used by the driver code to add a debugfs log entry to the 1896 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and 1897 * @data3 are used like printf when displaying the log. 1898 **/ 1899 inline void 1900 lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, 1901 uint16_t data1, uint16_t data2, uint32_t data3) 1902 { 1903 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1904 struct lpfc_debugfs_nvmeio_trc *dtp; 1905 int index; 1906 1907 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) 1908 return; 1909 1910 index = atomic_inc_return(&phba->nvmeio_trc_cnt) & 1911 (phba->nvmeio_trc_size - 1); 1912 dtp = phba->nvmeio_trc + index; 1913 dtp->fmt = fmt; 1914 dtp->data1 = data1; 1915 dtp->data2 = data2; 1916 dtp->data3 = data3; 1917 #endif 1918 } 1919 1920 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1921 /** 1922 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 1923 * @inode: The inode pointer that contains a vport pointer. 1924 * @file: The file pointer to attach the log output. 1925 * 1926 * Description: 1927 * This routine is the entry point for the debugfs open file operation. It gets 1928 * the vport from the i_private field in @inode, allocates the necessary buffer 1929 * for the log, fills the buffer from the in-memory log for this vport, and then 1930 * returns a pointer to that log in the private_data field in @file. 1931 * 1932 * Returns: 1933 * This function returns zero if successful. On error it will return a negative 1934 * error value. 1935 **/ 1936 static int 1937 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 1938 { 1939 struct lpfc_vport *vport = inode->i_private; 1940 struct lpfc_debug *debug; 1941 int size; 1942 int rc = -ENOMEM; 1943 1944 if (!lpfc_debugfs_max_disc_trc) { 1945 rc = -ENOSPC; 1946 goto out; 1947 } 1948 1949 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1950 if (!debug) 1951 goto out; 1952 1953 /* Round to page boundary */ 1954 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1955 size = PAGE_ALIGN(size); 1956 1957 debug->buffer = kmalloc(size, GFP_KERNEL); 1958 if (!debug->buffer) { 1959 kfree(debug); 1960 goto out; 1961 } 1962 1963 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 1964 file->private_data = debug; 1965 1966 rc = 0; 1967 out: 1968 return rc; 1969 } 1970 1971 /** 1972 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 1973 * @inode: The inode pointer that contains a vport pointer. 1974 * @file: The file pointer to attach the log output. 1975 * 1976 * Description: 1977 * This routine is the entry point for the debugfs open file operation. It gets 1978 * the vport from the i_private field in @inode, allocates the necessary buffer 1979 * for the log, fills the buffer from the in-memory log for this vport, and then 1980 * returns a pointer to that log in the private_data field in @file. 1981 * 1982 * Returns: 1983 * This function returns zero if successful. On error it will return a negative 1984 * error value. 1985 **/ 1986 static int 1987 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 1988 { 1989 struct lpfc_hba *phba = inode->i_private; 1990 struct lpfc_debug *debug; 1991 int size; 1992 int rc = -ENOMEM; 1993 1994 if (!lpfc_debugfs_max_slow_ring_trc) { 1995 rc = -ENOSPC; 1996 goto out; 1997 } 1998 1999 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2000 if (!debug) 2001 goto out; 2002 2003 /* Round to page boundary */ 2004 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 2005 size = PAGE_ALIGN(size); 2006 2007 debug->buffer = kmalloc(size, GFP_KERNEL); 2008 if (!debug->buffer) { 2009 kfree(debug); 2010 goto out; 2011 } 2012 2013 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 2014 file->private_data = debug; 2015 2016 rc = 0; 2017 out: 2018 return rc; 2019 } 2020 2021 /** 2022 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 2023 * @inode: The inode pointer that contains a vport pointer. 2024 * @file: The file pointer to attach the log output. 2025 * 2026 * Description: 2027 * This routine is the entry point for the debugfs open file operation. It gets 2028 * the vport from the i_private field in @inode, allocates the necessary buffer 2029 * for the log, fills the buffer from the in-memory log for this vport, and then 2030 * returns a pointer to that log in the private_data field in @file. 2031 * 2032 * Returns: 2033 * This function returns zero if successful. On error it will return a negative 2034 * error value. 2035 **/ 2036 static int 2037 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 2038 { 2039 struct lpfc_hba *phba = inode->i_private; 2040 struct lpfc_debug *debug; 2041 int rc = -ENOMEM; 2042 2043 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2044 if (!debug) 2045 goto out; 2046 2047 /* Round to page boundary */ 2048 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 2049 if (!debug->buffer) { 2050 kfree(debug); 2051 goto out; 2052 } 2053 2054 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 2055 LPFC_HBQINFO_SIZE); 2056 file->private_data = debug; 2057 2058 rc = 0; 2059 out: 2060 return rc; 2061 } 2062 2063 /** 2064 * lpfc_debugfs_multixripools_open - Open the multixripool debugfs buffer 2065 * @inode: The inode pointer that contains a hba pointer. 2066 * @file: The file pointer to attach the log output. 2067 * 2068 * Description: 2069 * This routine is the entry point for the debugfs open file operation. It gets 2070 * the hba from the i_private field in @inode, allocates the necessary buffer 2071 * for the log, fills the buffer from the in-memory log for this hba, and then 2072 * returns a pointer to that log in the private_data field in @file. 2073 * 2074 * Returns: 2075 * This function returns zero if successful. On error it will return a negative 2076 * error value. 2077 **/ 2078 static int 2079 lpfc_debugfs_multixripools_open(struct inode *inode, struct file *file) 2080 { 2081 struct lpfc_hba *phba = inode->i_private; 2082 struct lpfc_debug *debug; 2083 int rc = -ENOMEM; 2084 2085 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2086 if (!debug) 2087 goto out; 2088 2089 /* Round to page boundary */ 2090 debug->buffer = kzalloc(LPFC_DUMP_MULTIXRIPOOL_SIZE, GFP_KERNEL); 2091 if (!debug->buffer) { 2092 kfree(debug); 2093 goto out; 2094 } 2095 2096 debug->len = lpfc_debugfs_multixripools_data( 2097 phba, debug->buffer, LPFC_DUMP_MULTIXRIPOOL_SIZE); 2098 2099 debug->i_private = inode->i_private; 2100 file->private_data = debug; 2101 2102 rc = 0; 2103 out: 2104 return rc; 2105 } 2106 2107 #ifdef LPFC_HDWQ_LOCK_STAT 2108 /** 2109 * lpfc_debugfs_lockstat_open - Open the lockstat debugfs buffer 2110 * @inode: The inode pointer that contains a vport pointer. 2111 * @file: The file pointer to attach the log output. 2112 * 2113 * Description: 2114 * This routine is the entry point for the debugfs open file operation. It gets 2115 * the vport from the i_private field in @inode, allocates the necessary buffer 2116 * for the log, fills the buffer from the in-memory log for this vport, and then 2117 * returns a pointer to that log in the private_data field in @file. 2118 * 2119 * Returns: 2120 * This function returns zero if successful. On error it will return a negative 2121 * error value. 2122 **/ 2123 static int 2124 lpfc_debugfs_lockstat_open(struct inode *inode, struct file *file) 2125 { 2126 struct lpfc_hba *phba = inode->i_private; 2127 struct lpfc_debug *debug; 2128 int rc = -ENOMEM; 2129 2130 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2131 if (!debug) 2132 goto out; 2133 2134 /* Round to page boundary */ 2135 debug->buffer = kmalloc(LPFC_HDWQINFO_SIZE, GFP_KERNEL); 2136 if (!debug->buffer) { 2137 kfree(debug); 2138 goto out; 2139 } 2140 2141 debug->len = lpfc_debugfs_lockstat_data(phba, debug->buffer, 2142 LPFC_HBQINFO_SIZE); 2143 file->private_data = debug; 2144 2145 rc = 0; 2146 out: 2147 return rc; 2148 } 2149 2150 static ssize_t 2151 lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf, 2152 size_t nbytes, loff_t *ppos) 2153 { 2154 struct lpfc_debug *debug = file->private_data; 2155 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2156 struct lpfc_sli4_hdw_queue *qp; 2157 char mybuf[64]; 2158 char *pbuf; 2159 int i; 2160 size_t bsize; 2161 2162 memset(mybuf, 0, sizeof(mybuf)); 2163 2164 bsize = min(nbytes, (sizeof(mybuf) - 1)); 2165 2166 if (copy_from_user(mybuf, buf, bsize)) 2167 return -EFAULT; 2168 pbuf = &mybuf[0]; 2169 2170 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2171 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2172 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2173 qp = &phba->sli4_hba.hdwq[i]; 2174 qp->lock_conflict.alloc_xri_get = 0; 2175 qp->lock_conflict.alloc_xri_put = 0; 2176 qp->lock_conflict.free_xri = 0; 2177 qp->lock_conflict.wq_access = 0; 2178 qp->lock_conflict.alloc_pvt_pool = 0; 2179 qp->lock_conflict.mv_from_pvt_pool = 0; 2180 qp->lock_conflict.mv_to_pub_pool = 0; 2181 qp->lock_conflict.mv_to_pvt_pool = 0; 2182 qp->lock_conflict.free_pvt_pool = 0; 2183 qp->lock_conflict.free_pub_pool = 0; 2184 qp->lock_conflict.wq_access = 0; 2185 } 2186 } 2187 return bsize; 2188 } 2189 #endif 2190 2191 static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba, 2192 char *buffer, int size) 2193 { 2194 int copied = 0; 2195 struct lpfc_dmabuf *dmabuf, *next; 2196 2197 memset(buffer, 0, size); 2198 2199 spin_lock_irq(&phba->hbalock); 2200 if (phba->ras_fwlog.state != ACTIVE) { 2201 spin_unlock_irq(&phba->hbalock); 2202 return -EINVAL; 2203 } 2204 spin_unlock_irq(&phba->hbalock); 2205 2206 list_for_each_entry_safe(dmabuf, next, 2207 &phba->ras_fwlog.fwlog_buff_list, list) { 2208 /* Check if copying will go over size and a '\0' char */ 2209 if ((copied + LPFC_RAS_MAX_ENTRY_SIZE) >= (size - 1)) { 2210 memcpy(buffer + copied, dmabuf->virt, 2211 size - copied - 1); 2212 copied += size - copied - 1; 2213 break; 2214 } 2215 memcpy(buffer + copied, dmabuf->virt, LPFC_RAS_MAX_ENTRY_SIZE); 2216 copied += LPFC_RAS_MAX_ENTRY_SIZE; 2217 } 2218 return copied; 2219 } 2220 2221 static int 2222 lpfc_debugfs_ras_log_release(struct inode *inode, struct file *file) 2223 { 2224 struct lpfc_debug *debug = file->private_data; 2225 2226 vfree(debug->buffer); 2227 kfree(debug); 2228 2229 return 0; 2230 } 2231 2232 /** 2233 * lpfc_debugfs_ras_log_open - Open the RAS log debugfs buffer 2234 * @inode: The inode pointer that contains a vport pointer. 2235 * @file: The file pointer to attach the log output. 2236 * 2237 * Description: 2238 * This routine is the entry point for the debugfs open file operation. It gets 2239 * the vport from the i_private field in @inode, allocates the necessary buffer 2240 * for the log, fills the buffer from the in-memory log for this vport, and then 2241 * returns a pointer to that log in the private_data field in @file. 2242 * 2243 * Returns: 2244 * This function returns zero if successful. On error it will return a negative 2245 * error value. 2246 **/ 2247 static int 2248 lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file) 2249 { 2250 struct lpfc_hba *phba = inode->i_private; 2251 struct lpfc_debug *debug; 2252 int size; 2253 int rc = -ENOMEM; 2254 2255 spin_lock_irq(&phba->hbalock); 2256 if (phba->ras_fwlog.state != ACTIVE) { 2257 spin_unlock_irq(&phba->hbalock); 2258 rc = -EINVAL; 2259 goto out; 2260 } 2261 spin_unlock_irq(&phba->hbalock); 2262 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2263 if (!debug) 2264 goto out; 2265 2266 size = LPFC_RAS_MIN_BUFF_POST_SIZE * phba->cfg_ras_fwlog_buffsize; 2267 debug->buffer = vmalloc(size); 2268 if (!debug->buffer) 2269 goto free_debug; 2270 2271 debug->len = lpfc_debugfs_ras_log_data(phba, debug->buffer, size); 2272 if (debug->len < 0) { 2273 rc = -EINVAL; 2274 goto free_buffer; 2275 } 2276 file->private_data = debug; 2277 2278 return 0; 2279 2280 free_buffer: 2281 vfree(debug->buffer); 2282 free_debug: 2283 kfree(debug); 2284 out: 2285 return rc; 2286 } 2287 2288 /** 2289 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 2290 * @inode: The inode pointer that contains a vport pointer. 2291 * @file: The file pointer to attach the log output. 2292 * 2293 * Description: 2294 * This routine is the entry point for the debugfs open file operation. It gets 2295 * the vport from the i_private field in @inode, allocates the necessary buffer 2296 * for the log, fills the buffer from the in-memory log for this vport, and then 2297 * returns a pointer to that log in the private_data field in @file. 2298 * 2299 * Returns: 2300 * This function returns zero if successful. On error it will return a negative 2301 * error value. 2302 **/ 2303 static int 2304 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 2305 { 2306 struct lpfc_hba *phba = inode->i_private; 2307 struct lpfc_debug *debug; 2308 int rc = -ENOMEM; 2309 2310 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2311 if (!debug) 2312 goto out; 2313 2314 /* Round to page boundary */ 2315 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 2316 if (!debug->buffer) { 2317 kfree(debug); 2318 goto out; 2319 } 2320 2321 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 2322 LPFC_DUMPHBASLIM_SIZE); 2323 file->private_data = debug; 2324 2325 rc = 0; 2326 out: 2327 return rc; 2328 } 2329 2330 /** 2331 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 2332 * @inode: The inode pointer that contains a vport pointer. 2333 * @file: The file pointer to attach the log output. 2334 * 2335 * Description: 2336 * This routine is the entry point for the debugfs open file operation. It gets 2337 * the vport from the i_private field in @inode, allocates the necessary buffer 2338 * for the log, fills the buffer from the in-memory log for this vport, and then 2339 * returns a pointer to that log in the private_data field in @file. 2340 * 2341 * Returns: 2342 * This function returns zero if successful. On error it will return a negative 2343 * error value. 2344 **/ 2345 static int 2346 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 2347 { 2348 struct lpfc_hba *phba = inode->i_private; 2349 struct lpfc_debug *debug; 2350 int rc = -ENOMEM; 2351 2352 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2353 if (!debug) 2354 goto out; 2355 2356 /* Round to page boundary */ 2357 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 2358 if (!debug->buffer) { 2359 kfree(debug); 2360 goto out; 2361 } 2362 2363 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 2364 LPFC_DUMPHOSTSLIM_SIZE); 2365 file->private_data = debug; 2366 2367 rc = 0; 2368 out: 2369 return rc; 2370 } 2371 2372 static ssize_t 2373 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 2374 size_t nbytes, loff_t *ppos) 2375 { 2376 struct dentry *dent = file->f_path.dentry; 2377 struct lpfc_hba *phba = file->private_data; 2378 char cbuf[32]; 2379 uint64_t tmp = 0; 2380 int cnt = 0; 2381 2382 if (dent == phba->debug_writeGuard) 2383 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); 2384 else if (dent == phba->debug_writeApp) 2385 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); 2386 else if (dent == phba->debug_writeRef) 2387 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); 2388 else if (dent == phba->debug_readGuard) 2389 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); 2390 else if (dent == phba->debug_readApp) 2391 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); 2392 else if (dent == phba->debug_readRef) 2393 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); 2394 else if (dent == phba->debug_InjErrNPortID) 2395 cnt = scnprintf(cbuf, 32, "0x%06x\n", 2396 phba->lpfc_injerr_nportid); 2397 else if (dent == phba->debug_InjErrWWPN) { 2398 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); 2399 tmp = cpu_to_be64(tmp); 2400 cnt = scnprintf(cbuf, 32, "0x%016llx\n", tmp); 2401 } else if (dent == phba->debug_InjErrLBA) { 2402 if (phba->lpfc_injerr_lba == (sector_t)(-1)) 2403 cnt = scnprintf(cbuf, 32, "off\n"); 2404 else 2405 cnt = scnprintf(cbuf, 32, "0x%llx\n", 2406 (uint64_t) phba->lpfc_injerr_lba); 2407 } else 2408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2409 "0547 Unknown debugfs error injection entry\n"); 2410 2411 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 2412 } 2413 2414 static ssize_t 2415 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 2416 size_t nbytes, loff_t *ppos) 2417 { 2418 struct dentry *dent = file->f_path.dentry; 2419 struct lpfc_hba *phba = file->private_data; 2420 char dstbuf[33]; 2421 uint64_t tmp = 0; 2422 int size; 2423 2424 memset(dstbuf, 0, 33); 2425 size = (nbytes < 32) ? nbytes : 32; 2426 if (copy_from_user(dstbuf, buf, size)) 2427 return -EFAULT; 2428 2429 if (dent == phba->debug_InjErrLBA) { 2430 if ((dstbuf[0] == 'o') && (dstbuf[1] == 'f') && 2431 (dstbuf[2] == 'f')) 2432 tmp = (uint64_t)(-1); 2433 } 2434 2435 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) 2436 return -EINVAL; 2437 2438 if (dent == phba->debug_writeGuard) 2439 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 2440 else if (dent == phba->debug_writeApp) 2441 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 2442 else if (dent == phba->debug_writeRef) 2443 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 2444 else if (dent == phba->debug_readGuard) 2445 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 2446 else if (dent == phba->debug_readApp) 2447 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 2448 else if (dent == phba->debug_readRef) 2449 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 2450 else if (dent == phba->debug_InjErrLBA) 2451 phba->lpfc_injerr_lba = (sector_t)tmp; 2452 else if (dent == phba->debug_InjErrNPortID) 2453 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 2454 else if (dent == phba->debug_InjErrWWPN) { 2455 tmp = cpu_to_be64(tmp); 2456 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); 2457 } else 2458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2459 "0548 Unknown debugfs error injection entry\n"); 2460 2461 return nbytes; 2462 } 2463 2464 static int 2465 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 2466 { 2467 return 0; 2468 } 2469 2470 /** 2471 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 2472 * @inode: The inode pointer that contains a vport pointer. 2473 * @file: The file pointer to attach the log output. 2474 * 2475 * Description: 2476 * This routine is the entry point for the debugfs open file operation. It gets 2477 * the vport from the i_private field in @inode, allocates the necessary buffer 2478 * for the log, fills the buffer from the in-memory log for this vport, and then 2479 * returns a pointer to that log in the private_data field in @file. 2480 * 2481 * Returns: 2482 * This function returns zero if successful. On error it will return a negative 2483 * error value. 2484 **/ 2485 static int 2486 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 2487 { 2488 struct lpfc_vport *vport = inode->i_private; 2489 struct lpfc_debug *debug; 2490 int rc = -ENOMEM; 2491 2492 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2493 if (!debug) 2494 goto out; 2495 2496 /* Round to page boundary */ 2497 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 2498 if (!debug->buffer) { 2499 kfree(debug); 2500 goto out; 2501 } 2502 2503 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 2504 LPFC_NODELIST_SIZE); 2505 file->private_data = debug; 2506 2507 rc = 0; 2508 out: 2509 return rc; 2510 } 2511 2512 /** 2513 * lpfc_debugfs_lseek - Seek through a debugfs file 2514 * @file: The file pointer to seek through. 2515 * @off: The offset to seek to or the amount to seek by. 2516 * @whence: Indicates how to seek. 2517 * 2518 * Description: 2519 * This routine is the entry point for the debugfs lseek file operation. The 2520 * @whence parameter indicates whether @off is the offset to directly seek to, 2521 * or if it is a value to seek forward or reverse by. This function figures out 2522 * what the new offset of the debugfs file will be and assigns that value to the 2523 * f_pos field of @file. 2524 * 2525 * Returns: 2526 * This function returns the new offset if successful and returns a negative 2527 * error if unable to process the seek. 2528 **/ 2529 static loff_t 2530 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 2531 { 2532 struct lpfc_debug *debug = file->private_data; 2533 return fixed_size_llseek(file, off, whence, debug->len); 2534 } 2535 2536 /** 2537 * lpfc_debugfs_read - Read a debugfs file 2538 * @file: The file pointer to read from. 2539 * @buf: The buffer to copy the data to. 2540 * @nbytes: The number of bytes to read. 2541 * @ppos: The position in the file to start reading from. 2542 * 2543 * Description: 2544 * This routine reads data from from the buffer indicated in the private_data 2545 * field of @file. It will start reading at @ppos and copy up to @nbytes of 2546 * data to @buf. 2547 * 2548 * Returns: 2549 * This function returns the amount of data that was read (this could be less 2550 * than @nbytes if the end of the file was reached) or a negative error value. 2551 **/ 2552 static ssize_t 2553 lpfc_debugfs_read(struct file *file, char __user *buf, 2554 size_t nbytes, loff_t *ppos) 2555 { 2556 struct lpfc_debug *debug = file->private_data; 2557 2558 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 2559 debug->len); 2560 } 2561 2562 /** 2563 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 2564 * @inode: The inode pointer that contains a vport pointer. (unused) 2565 * @file: The file pointer that contains the buffer to release. 2566 * 2567 * Description: 2568 * This routine frees the buffer that was allocated when the debugfs file was 2569 * opened. 2570 * 2571 * Returns: 2572 * This function returns zero. 2573 **/ 2574 static int 2575 lpfc_debugfs_release(struct inode *inode, struct file *file) 2576 { 2577 struct lpfc_debug *debug = file->private_data; 2578 2579 kfree(debug->buffer); 2580 kfree(debug); 2581 2582 return 0; 2583 } 2584 2585 /** 2586 * lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics 2587 * @file: The file pointer to read from. 2588 * @buf: The buffer to copy the user data from. 2589 * @nbytes: The number of bytes to get. 2590 * @ppos: The position in the file to start reading from. 2591 * 2592 * Description: 2593 * This routine clears multi-XRI pools statistics when buf contains "clear". 2594 * 2595 * Return Value: 2596 * It returns the @nbytges passing in from debugfs user space when successful. 2597 * In case of error conditions, it returns proper error code back to the user 2598 * space. 2599 **/ 2600 static ssize_t 2601 lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf, 2602 size_t nbytes, loff_t *ppos) 2603 { 2604 struct lpfc_debug *debug = file->private_data; 2605 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2606 char mybuf[64]; 2607 char *pbuf; 2608 u32 i; 2609 u32 hwq_count; 2610 struct lpfc_sli4_hdw_queue *qp; 2611 struct lpfc_multixri_pool *multixri_pool; 2612 2613 if (nbytes > sizeof(mybuf) - 1) 2614 nbytes = sizeof(mybuf) - 1; 2615 2616 memset(mybuf, 0, sizeof(mybuf)); 2617 2618 if (copy_from_user(mybuf, buf, nbytes)) 2619 return -EFAULT; 2620 pbuf = &mybuf[0]; 2621 2622 if ((strncmp(pbuf, "clear", strlen("clear"))) == 0) { 2623 hwq_count = phba->cfg_hdw_queue; 2624 for (i = 0; i < hwq_count; i++) { 2625 qp = &phba->sli4_hba.hdwq[i]; 2626 multixri_pool = qp->p_multixri_pool; 2627 if (!multixri_pool) 2628 continue; 2629 2630 qp->empty_io_bufs = 0; 2631 multixri_pool->pbl_empty_count = 0; 2632 #ifdef LPFC_MXP_STAT 2633 multixri_pool->above_limit_count = 0; 2634 multixri_pool->below_limit_count = 0; 2635 multixri_pool->stat_max_hwm = 0; 2636 multixri_pool->local_pbl_hit_count = 0; 2637 multixri_pool->other_pbl_hit_count = 0; 2638 2639 multixri_pool->stat_pbl_count = 0; 2640 multixri_pool->stat_pvt_count = 0; 2641 multixri_pool->stat_busy_count = 0; 2642 multixri_pool->stat_snapshot_taken = 0; 2643 #endif 2644 } 2645 return strlen(pbuf); 2646 } 2647 2648 return -EINVAL; 2649 } 2650 2651 static int 2652 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 2653 { 2654 struct lpfc_vport *vport = inode->i_private; 2655 struct lpfc_debug *debug; 2656 int rc = -ENOMEM; 2657 2658 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2659 if (!debug) 2660 goto out; 2661 2662 /* Round to page boundary */ 2663 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 2664 if (!debug->buffer) { 2665 kfree(debug); 2666 goto out; 2667 } 2668 2669 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 2670 LPFC_NVMESTAT_SIZE); 2671 2672 debug->i_private = inode->i_private; 2673 file->private_data = debug; 2674 2675 rc = 0; 2676 out: 2677 return rc; 2678 } 2679 2680 static ssize_t 2681 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 2682 size_t nbytes, loff_t *ppos) 2683 { 2684 struct lpfc_debug *debug = file->private_data; 2685 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2686 struct lpfc_hba *phba = vport->phba; 2687 struct lpfc_nvmet_tgtport *tgtp; 2688 char mybuf[64]; 2689 char *pbuf; 2690 2691 if (!phba->targetport) 2692 return -ENXIO; 2693 2694 if (nbytes > sizeof(mybuf) - 1) 2695 nbytes = sizeof(mybuf) - 1; 2696 2697 memset(mybuf, 0, sizeof(mybuf)); 2698 2699 if (copy_from_user(mybuf, buf, nbytes)) 2700 return -EFAULT; 2701 pbuf = &mybuf[0]; 2702 2703 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2704 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2705 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2706 atomic_set(&tgtp->rcv_ls_req_in, 0); 2707 atomic_set(&tgtp->rcv_ls_req_out, 0); 2708 atomic_set(&tgtp->rcv_ls_req_drop, 0); 2709 atomic_set(&tgtp->xmt_ls_abort, 0); 2710 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 2711 atomic_set(&tgtp->xmt_ls_rsp, 0); 2712 atomic_set(&tgtp->xmt_ls_drop, 0); 2713 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 2714 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 2715 2716 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 2717 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 2718 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 2719 atomic_set(&tgtp->xmt_fcp_drop, 0); 2720 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 2721 atomic_set(&tgtp->xmt_fcp_read, 0); 2722 atomic_set(&tgtp->xmt_fcp_write, 0); 2723 atomic_set(&tgtp->xmt_fcp_rsp, 0); 2724 atomic_set(&tgtp->xmt_fcp_release, 0); 2725 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 2726 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 2727 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 2728 2729 atomic_set(&tgtp->xmt_fcp_abort, 0); 2730 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 2731 atomic_set(&tgtp->xmt_abort_sol, 0); 2732 atomic_set(&tgtp->xmt_abort_unsol, 0); 2733 atomic_set(&tgtp->xmt_abort_rsp, 0); 2734 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 2735 } 2736 return nbytes; 2737 } 2738 2739 static int 2740 lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file) 2741 { 2742 struct lpfc_vport *vport = inode->i_private; 2743 struct lpfc_debug *debug; 2744 int rc = -ENOMEM; 2745 2746 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2747 if (!debug) 2748 goto out; 2749 2750 /* Round to page boundary */ 2751 debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL); 2752 if (!debug->buffer) { 2753 kfree(debug); 2754 goto out; 2755 } 2756 2757 debug->len = lpfc_debugfs_scsistat_data(vport, debug->buffer, 2758 LPFC_SCSISTAT_SIZE); 2759 2760 debug->i_private = inode->i_private; 2761 file->private_data = debug; 2762 2763 rc = 0; 2764 out: 2765 return rc; 2766 } 2767 2768 static ssize_t 2769 lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf, 2770 size_t nbytes, loff_t *ppos) 2771 { 2772 struct lpfc_debug *debug = file->private_data; 2773 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2774 struct lpfc_hba *phba = vport->phba; 2775 char mybuf[6] = {0}; 2776 int i; 2777 2778 if (copy_from_user(mybuf, buf, (nbytes >= sizeof(mybuf)) ? 2779 (sizeof(mybuf) - 1) : nbytes)) 2780 return -EFAULT; 2781 2782 if ((strncmp(&mybuf[0], "reset", strlen("reset")) == 0) || 2783 (strncmp(&mybuf[0], "zero", strlen("zero")) == 0)) { 2784 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2785 memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0, 2786 sizeof(phba->sli4_hba.hdwq[i].scsi_cstat)); 2787 } 2788 } 2789 2790 return nbytes; 2791 } 2792 2793 static int 2794 lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file) 2795 { 2796 struct lpfc_vport *vport = inode->i_private; 2797 struct lpfc_debug *debug; 2798 int rc = -ENOMEM; 2799 2800 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2801 if (!debug) 2802 goto out; 2803 2804 /* Round to page boundary */ 2805 debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL); 2806 if (!debug->buffer) { 2807 kfree(debug); 2808 goto out; 2809 } 2810 2811 debug->len = lpfc_debugfs_ioktime_data(vport, debug->buffer, 2812 LPFC_IOKTIME_SIZE); 2813 2814 debug->i_private = inode->i_private; 2815 file->private_data = debug; 2816 2817 rc = 0; 2818 out: 2819 return rc; 2820 } 2821 2822 static ssize_t 2823 lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf, 2824 size_t nbytes, loff_t *ppos) 2825 { 2826 struct lpfc_debug *debug = file->private_data; 2827 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2828 struct lpfc_hba *phba = vport->phba; 2829 char mybuf[64]; 2830 char *pbuf; 2831 2832 if (nbytes > sizeof(mybuf) - 1) 2833 nbytes = sizeof(mybuf) - 1; 2834 2835 memset(mybuf, 0, sizeof(mybuf)); 2836 2837 if (copy_from_user(mybuf, buf, nbytes)) 2838 return -EFAULT; 2839 pbuf = &mybuf[0]; 2840 2841 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2842 phba->ktime_data_samples = 0; 2843 phba->ktime_status_samples = 0; 2844 phba->ktime_seg1_total = 0; 2845 phba->ktime_seg1_max = 0; 2846 phba->ktime_seg1_min = 0xffffffff; 2847 phba->ktime_seg2_total = 0; 2848 phba->ktime_seg2_max = 0; 2849 phba->ktime_seg2_min = 0xffffffff; 2850 phba->ktime_seg3_total = 0; 2851 phba->ktime_seg3_max = 0; 2852 phba->ktime_seg3_min = 0xffffffff; 2853 phba->ktime_seg4_total = 0; 2854 phba->ktime_seg4_max = 0; 2855 phba->ktime_seg4_min = 0xffffffff; 2856 phba->ktime_seg5_total = 0; 2857 phba->ktime_seg5_max = 0; 2858 phba->ktime_seg5_min = 0xffffffff; 2859 phba->ktime_seg6_total = 0; 2860 phba->ktime_seg6_max = 0; 2861 phba->ktime_seg6_min = 0xffffffff; 2862 phba->ktime_seg7_total = 0; 2863 phba->ktime_seg7_max = 0; 2864 phba->ktime_seg7_min = 0xffffffff; 2865 phba->ktime_seg8_total = 0; 2866 phba->ktime_seg8_max = 0; 2867 phba->ktime_seg8_min = 0xffffffff; 2868 phba->ktime_seg9_total = 0; 2869 phba->ktime_seg9_max = 0; 2870 phba->ktime_seg9_min = 0xffffffff; 2871 phba->ktime_seg10_total = 0; 2872 phba->ktime_seg10_max = 0; 2873 phba->ktime_seg10_min = 0xffffffff; 2874 2875 phba->ktime_on = 1; 2876 return strlen(pbuf); 2877 } else if ((strncmp(pbuf, "off", 2878 sizeof("off") - 1) == 0)) { 2879 phba->ktime_on = 0; 2880 return strlen(pbuf); 2881 } else if ((strncmp(pbuf, "zero", 2882 sizeof("zero") - 1) == 0)) { 2883 phba->ktime_data_samples = 0; 2884 phba->ktime_status_samples = 0; 2885 phba->ktime_seg1_total = 0; 2886 phba->ktime_seg1_max = 0; 2887 phba->ktime_seg1_min = 0xffffffff; 2888 phba->ktime_seg2_total = 0; 2889 phba->ktime_seg2_max = 0; 2890 phba->ktime_seg2_min = 0xffffffff; 2891 phba->ktime_seg3_total = 0; 2892 phba->ktime_seg3_max = 0; 2893 phba->ktime_seg3_min = 0xffffffff; 2894 phba->ktime_seg4_total = 0; 2895 phba->ktime_seg4_max = 0; 2896 phba->ktime_seg4_min = 0xffffffff; 2897 phba->ktime_seg5_total = 0; 2898 phba->ktime_seg5_max = 0; 2899 phba->ktime_seg5_min = 0xffffffff; 2900 phba->ktime_seg6_total = 0; 2901 phba->ktime_seg6_max = 0; 2902 phba->ktime_seg6_min = 0xffffffff; 2903 phba->ktime_seg7_total = 0; 2904 phba->ktime_seg7_max = 0; 2905 phba->ktime_seg7_min = 0xffffffff; 2906 phba->ktime_seg8_total = 0; 2907 phba->ktime_seg8_max = 0; 2908 phba->ktime_seg8_min = 0xffffffff; 2909 phba->ktime_seg9_total = 0; 2910 phba->ktime_seg9_max = 0; 2911 phba->ktime_seg9_min = 0xffffffff; 2912 phba->ktime_seg10_total = 0; 2913 phba->ktime_seg10_max = 0; 2914 phba->ktime_seg10_min = 0xffffffff; 2915 return strlen(pbuf); 2916 } 2917 return -EINVAL; 2918 } 2919 2920 static int 2921 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2922 { 2923 struct lpfc_hba *phba = inode->i_private; 2924 struct lpfc_debug *debug; 2925 int rc = -ENOMEM; 2926 2927 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2928 if (!debug) 2929 goto out; 2930 2931 /* Round to page boundary */ 2932 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2933 if (!debug->buffer) { 2934 kfree(debug); 2935 goto out; 2936 } 2937 2938 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2939 LPFC_NVMEIO_TRC_SIZE); 2940 2941 debug->i_private = inode->i_private; 2942 file->private_data = debug; 2943 2944 rc = 0; 2945 out: 2946 return rc; 2947 } 2948 2949 static ssize_t 2950 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2951 size_t nbytes, loff_t *ppos) 2952 { 2953 struct lpfc_debug *debug = file->private_data; 2954 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2955 int i; 2956 unsigned long sz; 2957 char mybuf[64]; 2958 char *pbuf; 2959 2960 if (nbytes > sizeof(mybuf) - 1) 2961 nbytes = sizeof(mybuf) - 1; 2962 2963 memset(mybuf, 0, sizeof(mybuf)); 2964 2965 if (copy_from_user(mybuf, buf, nbytes)) 2966 return -EFAULT; 2967 pbuf = &mybuf[0]; 2968 2969 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2970 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2971 "0570 nvmeio_trc_off\n"); 2972 phba->nvmeio_trc_output_idx = 0; 2973 phba->nvmeio_trc_on = 0; 2974 return strlen(pbuf); 2975 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2976 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2977 "0571 nvmeio_trc_on\n"); 2978 phba->nvmeio_trc_output_idx = 0; 2979 phba->nvmeio_trc_on = 1; 2980 return strlen(pbuf); 2981 } 2982 2983 /* We must be off to allocate the trace buffer */ 2984 if (phba->nvmeio_trc_on != 0) 2985 return -EINVAL; 2986 2987 /* If not on or off, the parameter is the trace buffer size */ 2988 i = kstrtoul(pbuf, 0, &sz); 2989 if (i) 2990 return -EINVAL; 2991 phba->nvmeio_trc_size = (uint32_t)sz; 2992 2993 /* It must be a power of 2 - round down */ 2994 i = 0; 2995 while (sz > 1) { 2996 sz = sz >> 1; 2997 i++; 2998 } 2999 sz = (1 << i); 3000 if (phba->nvmeio_trc_size != sz) 3001 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3002 "0572 nvmeio_trc_size changed to %ld\n", 3003 sz); 3004 phba->nvmeio_trc_size = (uint32_t)sz; 3005 3006 /* If one previously exists, free it */ 3007 kfree(phba->nvmeio_trc); 3008 3009 /* Allocate new trace buffer and initialize */ 3010 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 3011 sz), GFP_KERNEL); 3012 if (!phba->nvmeio_trc) { 3013 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3014 "0573 Cannot create debugfs " 3015 "nvmeio_trc buffer\n"); 3016 return -ENOMEM; 3017 } 3018 atomic_set(&phba->nvmeio_trc_cnt, 0); 3019 phba->nvmeio_trc_on = 0; 3020 phba->nvmeio_trc_output_idx = 0; 3021 3022 return strlen(pbuf); 3023 } 3024 3025 static int 3026 lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file) 3027 { 3028 struct lpfc_vport *vport = inode->i_private; 3029 struct lpfc_debug *debug; 3030 int rc = -ENOMEM; 3031 3032 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3033 if (!debug) 3034 goto out; 3035 3036 /* Round to page boundary */ 3037 debug->buffer = kcalloc(1, LPFC_SCSISTAT_SIZE, GFP_KERNEL); 3038 if (!debug->buffer) { 3039 kfree(debug); 3040 goto out; 3041 } 3042 3043 debug->len = lpfc_debugfs_hdwqstat_data(vport, debug->buffer, 3044 LPFC_SCSISTAT_SIZE); 3045 3046 debug->i_private = inode->i_private; 3047 file->private_data = debug; 3048 3049 rc = 0; 3050 out: 3051 return rc; 3052 } 3053 3054 static ssize_t 3055 lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf, 3056 size_t nbytes, loff_t *ppos) 3057 { 3058 struct lpfc_debug *debug = file->private_data; 3059 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 3060 struct lpfc_hba *phba = vport->phba; 3061 struct lpfc_hdwq_stat *c_stat; 3062 char mybuf[64]; 3063 char *pbuf; 3064 int i; 3065 3066 if (nbytes > sizeof(mybuf) - 1) 3067 nbytes = sizeof(mybuf) - 1; 3068 3069 memset(mybuf, 0, sizeof(mybuf)); 3070 3071 if (copy_from_user(mybuf, buf, nbytes)) 3072 return -EFAULT; 3073 pbuf = &mybuf[0]; 3074 3075 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 3076 if (phba->nvmet_support) 3077 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3078 else 3079 phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO | 3080 LPFC_CHECK_SCSI_IO); 3081 return strlen(pbuf); 3082 } else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) { 3083 if (phba->nvmet_support) 3084 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3085 else 3086 phba->hdwqstat_on |= LPFC_CHECK_NVME_IO; 3087 return strlen(pbuf); 3088 } else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) { 3089 if (!phba->nvmet_support) 3090 phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO; 3091 return strlen(pbuf); 3092 } else if ((strncmp(pbuf, "nvme_off", sizeof("nvme_off") - 1) == 0)) { 3093 phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO | 3094 LPFC_CHECK_NVMET_IO); 3095 return strlen(pbuf); 3096 } else if ((strncmp(pbuf, "scsi_off", sizeof("scsi_off") - 1) == 0)) { 3097 phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO; 3098 return strlen(pbuf); 3099 } else if ((strncmp(pbuf, "off", 3100 sizeof("off") - 1) == 0)) { 3101 phba->hdwqstat_on = LPFC_CHECK_OFF; 3102 return strlen(pbuf); 3103 } else if ((strncmp(pbuf, "zero", 3104 sizeof("zero") - 1) == 0)) { 3105 for_each_present_cpu(i) { 3106 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i); 3107 c_stat->xmt_io = 0; 3108 c_stat->cmpl_io = 0; 3109 c_stat->rcv_io = 0; 3110 } 3111 return strlen(pbuf); 3112 } 3113 return -EINVAL; 3114 } 3115 3116 /* 3117 * --------------------------------- 3118 * iDiag debugfs file access methods 3119 * --------------------------------- 3120 * 3121 * All access methods are through the proper SLI4 PCI function's debugfs 3122 * iDiag directory: 3123 * 3124 * /sys/kernel/debug/lpfc/fn<#>/iDiag 3125 */ 3126 3127 /** 3128 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 3129 * @buf: The pointer to the user space buffer. 3130 * @nbytes: The number of bytes in the user space buffer. 3131 * @idiag_cmd: pointer to the idiag command struct. 3132 * 3133 * This routine reads data from debugfs user space buffer and parses the 3134 * buffer for getting the idiag command and arguments. The while space in 3135 * between the set of data is used as the parsing separator. 3136 * 3137 * This routine returns 0 when successful, it returns proper error code 3138 * back to the user space in error conditions. 3139 */ 3140 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 3141 struct lpfc_idiag_cmd *idiag_cmd) 3142 { 3143 char mybuf[64]; 3144 char *pbuf, *step_str; 3145 int i; 3146 size_t bsize; 3147 3148 memset(mybuf, 0, sizeof(mybuf)); 3149 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 3150 bsize = min(nbytes, (sizeof(mybuf)-1)); 3151 3152 if (copy_from_user(mybuf, buf, bsize)) 3153 return -EFAULT; 3154 pbuf = &mybuf[0]; 3155 step_str = strsep(&pbuf, "\t "); 3156 3157 /* The opcode must present */ 3158 if (!step_str) 3159 return -EINVAL; 3160 3161 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 3162 if (idiag_cmd->opcode == 0) 3163 return -EINVAL; 3164 3165 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 3166 step_str = strsep(&pbuf, "\t "); 3167 if (!step_str) 3168 return i; 3169 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 3170 } 3171 return i; 3172 } 3173 3174 /** 3175 * lpfc_idiag_open - idiag open debugfs 3176 * @inode: The inode pointer that contains a pointer to phba. 3177 * @file: The file pointer to attach the file operation. 3178 * 3179 * Description: 3180 * This routine is the entry point for the debugfs open file operation. It 3181 * gets the reference to phba from the i_private field in @inode, it then 3182 * allocates buffer for the file operation, performs the necessary PCI config 3183 * space read into the allocated buffer according to the idiag user command 3184 * setup, and then returns a pointer to buffer in the private_data field in 3185 * @file. 3186 * 3187 * Returns: 3188 * This function returns zero if successful. On error it will return an 3189 * negative error value. 3190 **/ 3191 static int 3192 lpfc_idiag_open(struct inode *inode, struct file *file) 3193 { 3194 struct lpfc_debug *debug; 3195 3196 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3197 if (!debug) 3198 return -ENOMEM; 3199 3200 debug->i_private = inode->i_private; 3201 debug->buffer = NULL; 3202 file->private_data = debug; 3203 3204 return 0; 3205 } 3206 3207 /** 3208 * lpfc_idiag_release - Release idiag access file operation 3209 * @inode: The inode pointer that contains a vport pointer. (unused) 3210 * @file: The file pointer that contains the buffer to release. 3211 * 3212 * Description: 3213 * This routine is the generic release routine for the idiag access file 3214 * operation, it frees the buffer that was allocated when the debugfs file 3215 * was opened. 3216 * 3217 * Returns: 3218 * This function returns zero. 3219 **/ 3220 static int 3221 lpfc_idiag_release(struct inode *inode, struct file *file) 3222 { 3223 struct lpfc_debug *debug = file->private_data; 3224 3225 /* Free the buffers to the file operation */ 3226 kfree(debug->buffer); 3227 kfree(debug); 3228 3229 return 0; 3230 } 3231 3232 /** 3233 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 3234 * @inode: The inode pointer that contains a vport pointer. (unused) 3235 * @file: The file pointer that contains the buffer to release. 3236 * 3237 * Description: 3238 * This routine frees the buffer that was allocated when the debugfs file 3239 * was opened. It also reset the fields in the idiag command struct in the 3240 * case of command for write operation. 3241 * 3242 * Returns: 3243 * This function returns zero. 3244 **/ 3245 static int 3246 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 3247 { 3248 struct lpfc_debug *debug = file->private_data; 3249 3250 if (debug->op == LPFC_IDIAG_OP_WR) { 3251 switch (idiag.cmd.opcode) { 3252 case LPFC_IDIAG_CMD_PCICFG_WR: 3253 case LPFC_IDIAG_CMD_PCICFG_ST: 3254 case LPFC_IDIAG_CMD_PCICFG_CL: 3255 case LPFC_IDIAG_CMD_QUEACC_WR: 3256 case LPFC_IDIAG_CMD_QUEACC_ST: 3257 case LPFC_IDIAG_CMD_QUEACC_CL: 3258 memset(&idiag, 0, sizeof(idiag)); 3259 break; 3260 default: 3261 break; 3262 } 3263 } 3264 3265 /* Free the buffers to the file operation */ 3266 kfree(debug->buffer); 3267 kfree(debug); 3268 3269 return 0; 3270 } 3271 3272 /** 3273 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 3274 * @file: The file pointer to read from. 3275 * @buf: The buffer to copy the data to. 3276 * @nbytes: The number of bytes to read. 3277 * @ppos: The position in the file to start reading from. 3278 * 3279 * Description: 3280 * This routine reads data from the @phba pci config space according to the 3281 * idiag command, and copies to user @buf. Depending on the PCI config space 3282 * read command setup, it does either a single register read of a byte 3283 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 3284 * registers from the 4K extended PCI config space. 3285 * 3286 * Returns: 3287 * This function returns the amount of data that was read (this could be less 3288 * than @nbytes if the end of the file was reached) or a negative error value. 3289 **/ 3290 static ssize_t 3291 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 3292 loff_t *ppos) 3293 { 3294 struct lpfc_debug *debug = file->private_data; 3295 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3296 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 3297 int where, count; 3298 char *pbuffer; 3299 struct pci_dev *pdev; 3300 uint32_t u32val; 3301 uint16_t u16val; 3302 uint8_t u8val; 3303 3304 pdev = phba->pcidev; 3305 if (!pdev) 3306 return 0; 3307 3308 /* This is a user read operation */ 3309 debug->op = LPFC_IDIAG_OP_RD; 3310 3311 if (!debug->buffer) 3312 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 3313 if (!debug->buffer) 3314 return 0; 3315 pbuffer = debug->buffer; 3316 3317 if (*ppos) 3318 return 0; 3319 3320 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3321 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3322 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3323 } else 3324 return 0; 3325 3326 /* Read single PCI config space register */ 3327 switch (count) { 3328 case SIZE_U8: /* byte (8 bits) */ 3329 pci_read_config_byte(pdev, where, &u8val); 3330 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3331 "%03x: %02x\n", where, u8val); 3332 break; 3333 case SIZE_U16: /* word (16 bits) */ 3334 pci_read_config_word(pdev, where, &u16val); 3335 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3336 "%03x: %04x\n", where, u16val); 3337 break; 3338 case SIZE_U32: /* double word (32 bits) */ 3339 pci_read_config_dword(pdev, where, &u32val); 3340 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3341 "%03x: %08x\n", where, u32val); 3342 break; 3343 case LPFC_PCI_CFG_BROWSE: /* browse all */ 3344 goto pcicfg_browse; 3345 default: 3346 /* illegal count */ 3347 len = 0; 3348 break; 3349 } 3350 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3351 3352 pcicfg_browse: 3353 3354 /* Browse all PCI config space registers */ 3355 offset_label = idiag.offset.last_rd; 3356 offset = offset_label; 3357 3358 /* Read PCI config space */ 3359 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3360 "%03x: ", offset_label); 3361 while (index > 0) { 3362 pci_read_config_dword(pdev, offset, &u32val); 3363 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3364 "%08x ", u32val); 3365 offset += sizeof(uint32_t); 3366 if (offset >= LPFC_PCI_CFG_SIZE) { 3367 len += scnprintf(pbuffer+len, 3368 LPFC_PCI_CFG_SIZE-len, "\n"); 3369 break; 3370 } 3371 index -= sizeof(uint32_t); 3372 if (!index) 3373 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3374 "\n"); 3375 else if (!(index % (8 * sizeof(uint32_t)))) { 3376 offset_label += (8 * sizeof(uint32_t)); 3377 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3378 "\n%03x: ", offset_label); 3379 } 3380 } 3381 3382 /* Set up the offset for next portion of pci cfg read */ 3383 if (index == 0) { 3384 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 3385 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 3386 idiag.offset.last_rd = 0; 3387 } else 3388 idiag.offset.last_rd = 0; 3389 3390 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3391 } 3392 3393 /** 3394 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 3395 * @file: The file pointer to read from. 3396 * @buf: The buffer to copy the user data from. 3397 * @nbytes: The number of bytes to get. 3398 * @ppos: The position in the file to start reading from. 3399 * 3400 * This routine get the debugfs idiag command struct from user space and 3401 * then perform the syntax check for PCI config space read or write command 3402 * accordingly. In the case of PCI config space read command, it sets up 3403 * the command in the idiag command struct for the debugfs read operation. 3404 * In the case of PCI config space write operation, it executes the write 3405 * operation into the PCI config space accordingly. 3406 * 3407 * It returns the @nbytges passing in from debugfs user space when successful. 3408 * In case of error conditions, it returns proper error code back to the user 3409 * space. 3410 */ 3411 static ssize_t 3412 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 3413 size_t nbytes, loff_t *ppos) 3414 { 3415 struct lpfc_debug *debug = file->private_data; 3416 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3417 uint32_t where, value, count; 3418 uint32_t u32val; 3419 uint16_t u16val; 3420 uint8_t u8val; 3421 struct pci_dev *pdev; 3422 int rc; 3423 3424 pdev = phba->pcidev; 3425 if (!pdev) 3426 return -EFAULT; 3427 3428 /* This is a user write operation */ 3429 debug->op = LPFC_IDIAG_OP_WR; 3430 3431 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3432 if (rc < 0) 3433 return rc; 3434 3435 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3436 /* Sanity check on PCI config read command line arguments */ 3437 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 3438 goto error_out; 3439 /* Read command from PCI config space, set up command fields */ 3440 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3441 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3442 if (count == LPFC_PCI_CFG_BROWSE) { 3443 if (where % sizeof(uint32_t)) 3444 goto error_out; 3445 /* Starting offset to browse */ 3446 idiag.offset.last_rd = where; 3447 } else if ((count != sizeof(uint8_t)) && 3448 (count != sizeof(uint16_t)) && 3449 (count != sizeof(uint32_t))) 3450 goto error_out; 3451 if (count == sizeof(uint8_t)) { 3452 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3453 goto error_out; 3454 if (where % sizeof(uint8_t)) 3455 goto error_out; 3456 } 3457 if (count == sizeof(uint16_t)) { 3458 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3459 goto error_out; 3460 if (where % sizeof(uint16_t)) 3461 goto error_out; 3462 } 3463 if (count == sizeof(uint32_t)) { 3464 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3465 goto error_out; 3466 if (where % sizeof(uint32_t)) 3467 goto error_out; 3468 } 3469 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 3470 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 3471 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3472 /* Sanity check on PCI config write command line arguments */ 3473 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 3474 goto error_out; 3475 /* Write command to PCI config space, read-modify-write */ 3476 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3477 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3478 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 3479 /* Sanity checks */ 3480 if ((count != sizeof(uint8_t)) && 3481 (count != sizeof(uint16_t)) && 3482 (count != sizeof(uint32_t))) 3483 goto error_out; 3484 if (count == sizeof(uint8_t)) { 3485 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3486 goto error_out; 3487 if (where % sizeof(uint8_t)) 3488 goto error_out; 3489 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3490 pci_write_config_byte(pdev, where, 3491 (uint8_t)value); 3492 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3493 rc = pci_read_config_byte(pdev, where, &u8val); 3494 if (!rc) { 3495 u8val |= (uint8_t)value; 3496 pci_write_config_byte(pdev, where, 3497 u8val); 3498 } 3499 } 3500 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3501 rc = pci_read_config_byte(pdev, where, &u8val); 3502 if (!rc) { 3503 u8val &= (uint8_t)(~value); 3504 pci_write_config_byte(pdev, where, 3505 u8val); 3506 } 3507 } 3508 } 3509 if (count == sizeof(uint16_t)) { 3510 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3511 goto error_out; 3512 if (where % sizeof(uint16_t)) 3513 goto error_out; 3514 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3515 pci_write_config_word(pdev, where, 3516 (uint16_t)value); 3517 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3518 rc = pci_read_config_word(pdev, where, &u16val); 3519 if (!rc) { 3520 u16val |= (uint16_t)value; 3521 pci_write_config_word(pdev, where, 3522 u16val); 3523 } 3524 } 3525 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3526 rc = pci_read_config_word(pdev, where, &u16val); 3527 if (!rc) { 3528 u16val &= (uint16_t)(~value); 3529 pci_write_config_word(pdev, where, 3530 u16val); 3531 } 3532 } 3533 } 3534 if (count == sizeof(uint32_t)) { 3535 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3536 goto error_out; 3537 if (where % sizeof(uint32_t)) 3538 goto error_out; 3539 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3540 pci_write_config_dword(pdev, where, value); 3541 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3542 rc = pci_read_config_dword(pdev, where, 3543 &u32val); 3544 if (!rc) { 3545 u32val |= value; 3546 pci_write_config_dword(pdev, where, 3547 u32val); 3548 } 3549 } 3550 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3551 rc = pci_read_config_dword(pdev, where, 3552 &u32val); 3553 if (!rc) { 3554 u32val &= ~value; 3555 pci_write_config_dword(pdev, where, 3556 u32val); 3557 } 3558 } 3559 } 3560 } else 3561 /* All other opecodes are illegal for now */ 3562 goto error_out; 3563 3564 return nbytes; 3565 error_out: 3566 memset(&idiag, 0, sizeof(idiag)); 3567 return -EINVAL; 3568 } 3569 3570 /** 3571 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 3572 * @file: The file pointer to read from. 3573 * @buf: The buffer to copy the data to. 3574 * @nbytes: The number of bytes to read. 3575 * @ppos: The position in the file to start reading from. 3576 * 3577 * Description: 3578 * This routine reads data from the @phba pci bar memory mapped space 3579 * according to the idiag command, and copies to user @buf. 3580 * 3581 * Returns: 3582 * This function returns the amount of data that was read (this could be less 3583 * than @nbytes if the end of the file was reached) or a negative error value. 3584 **/ 3585 static ssize_t 3586 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 3587 loff_t *ppos) 3588 { 3589 struct lpfc_debug *debug = file->private_data; 3590 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3591 int offset_label, offset, offset_run, len = 0, index; 3592 int bar_num, acc_range, bar_size; 3593 char *pbuffer; 3594 void __iomem *mem_mapped_bar; 3595 uint32_t if_type; 3596 struct pci_dev *pdev; 3597 uint32_t u32val; 3598 3599 pdev = phba->pcidev; 3600 if (!pdev) 3601 return 0; 3602 3603 /* This is a user read operation */ 3604 debug->op = LPFC_IDIAG_OP_RD; 3605 3606 if (!debug->buffer) 3607 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 3608 if (!debug->buffer) 3609 return 0; 3610 pbuffer = debug->buffer; 3611 3612 if (*ppos) 3613 return 0; 3614 3615 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3616 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3617 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3618 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3619 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3620 } else 3621 return 0; 3622 3623 if (acc_range == 0) 3624 return 0; 3625 3626 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3627 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3628 if (bar_num == IDIAG_BARACC_BAR_0) 3629 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3630 else if (bar_num == IDIAG_BARACC_BAR_1) 3631 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3632 else if (bar_num == IDIAG_BARACC_BAR_2) 3633 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3634 else 3635 return 0; 3636 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3637 if (bar_num == IDIAG_BARACC_BAR_0) 3638 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3639 else 3640 return 0; 3641 } else 3642 return 0; 3643 3644 /* Read single PCI bar space register */ 3645 if (acc_range == SINGLE_WORD) { 3646 offset_run = offset; 3647 u32val = readl(mem_mapped_bar + offset_run); 3648 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3649 "%05x: %08x\n", offset_run, u32val); 3650 } else 3651 goto baracc_browse; 3652 3653 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3654 3655 baracc_browse: 3656 3657 /* Browse all PCI bar space registers */ 3658 offset_label = idiag.offset.last_rd; 3659 offset_run = offset_label; 3660 3661 /* Read PCI bar memory mapped space */ 3662 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3663 "%05x: ", offset_label); 3664 index = LPFC_PCI_BAR_RD_SIZE; 3665 while (index > 0) { 3666 u32val = readl(mem_mapped_bar + offset_run); 3667 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3668 "%08x ", u32val); 3669 offset_run += sizeof(uint32_t); 3670 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3671 if (offset_run >= bar_size) { 3672 len += scnprintf(pbuffer+len, 3673 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3674 break; 3675 } 3676 } else { 3677 if (offset_run >= offset + 3678 (acc_range * sizeof(uint32_t))) { 3679 len += scnprintf(pbuffer+len, 3680 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3681 break; 3682 } 3683 } 3684 index -= sizeof(uint32_t); 3685 if (!index) 3686 len += scnprintf(pbuffer+len, 3687 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3688 else if (!(index % (8 * sizeof(uint32_t)))) { 3689 offset_label += (8 * sizeof(uint32_t)); 3690 len += scnprintf(pbuffer+len, 3691 LPFC_PCI_BAR_RD_BUF_SIZE-len, 3692 "\n%05x: ", offset_label); 3693 } 3694 } 3695 3696 /* Set up the offset for next portion of pci bar read */ 3697 if (index == 0) { 3698 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 3699 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3700 if (idiag.offset.last_rd >= bar_size) 3701 idiag.offset.last_rd = 0; 3702 } else { 3703 if (offset_run >= offset + 3704 (acc_range * sizeof(uint32_t))) 3705 idiag.offset.last_rd = offset; 3706 } 3707 } else { 3708 if (acc_range == LPFC_PCI_BAR_BROWSE) 3709 idiag.offset.last_rd = 0; 3710 else 3711 idiag.offset.last_rd = offset; 3712 } 3713 3714 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3715 } 3716 3717 /** 3718 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 3719 * @file: The file pointer to read from. 3720 * @buf: The buffer to copy the user data from. 3721 * @nbytes: The number of bytes to get. 3722 * @ppos: The position in the file to start reading from. 3723 * 3724 * This routine get the debugfs idiag command struct from user space and 3725 * then perform the syntax check for PCI bar memory mapped space read or 3726 * write command accordingly. In the case of PCI bar memory mapped space 3727 * read command, it sets up the command in the idiag command struct for 3728 * the debugfs read operation. In the case of PCI bar memorpy mapped space 3729 * write operation, it executes the write operation into the PCI bar memory 3730 * mapped space accordingly. 3731 * 3732 * It returns the @nbytges passing in from debugfs user space when successful. 3733 * In case of error conditions, it returns proper error code back to the user 3734 * space. 3735 */ 3736 static ssize_t 3737 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 3738 size_t nbytes, loff_t *ppos) 3739 { 3740 struct lpfc_debug *debug = file->private_data; 3741 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3742 uint32_t bar_num, bar_size, offset, value, acc_range; 3743 struct pci_dev *pdev; 3744 void __iomem *mem_mapped_bar; 3745 uint32_t if_type; 3746 uint32_t u32val; 3747 int rc; 3748 3749 pdev = phba->pcidev; 3750 if (!pdev) 3751 return -EFAULT; 3752 3753 /* This is a user write operation */ 3754 debug->op = LPFC_IDIAG_OP_WR; 3755 3756 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3757 if (rc < 0) 3758 return rc; 3759 3760 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3761 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3762 3763 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3764 if ((bar_num != IDIAG_BARACC_BAR_0) && 3765 (bar_num != IDIAG_BARACC_BAR_1) && 3766 (bar_num != IDIAG_BARACC_BAR_2)) 3767 goto error_out; 3768 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3769 if (bar_num != IDIAG_BARACC_BAR_0) 3770 goto error_out; 3771 } else 3772 goto error_out; 3773 3774 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3775 if (bar_num == IDIAG_BARACC_BAR_0) { 3776 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3777 LPFC_PCI_IF0_BAR0_SIZE; 3778 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3779 } else if (bar_num == IDIAG_BARACC_BAR_1) { 3780 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3781 LPFC_PCI_IF0_BAR1_SIZE; 3782 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3783 } else if (bar_num == IDIAG_BARACC_BAR_2) { 3784 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3785 LPFC_PCI_IF0_BAR2_SIZE; 3786 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3787 } else 3788 goto error_out; 3789 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3790 if (bar_num == IDIAG_BARACC_BAR_0) { 3791 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3792 LPFC_PCI_IF2_BAR0_SIZE; 3793 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3794 } else 3795 goto error_out; 3796 } else 3797 goto error_out; 3798 3799 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3800 if (offset % sizeof(uint32_t)) 3801 goto error_out; 3802 3803 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3804 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3805 /* Sanity check on PCI config read command line arguments */ 3806 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3807 goto error_out; 3808 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3809 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3810 if (offset > bar_size - sizeof(uint32_t)) 3811 goto error_out; 3812 /* Starting offset to browse */ 3813 idiag.offset.last_rd = offset; 3814 } else if (acc_range > SINGLE_WORD) { 3815 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3816 goto error_out; 3817 /* Starting offset to browse */ 3818 idiag.offset.last_rd = offset; 3819 } else if (acc_range != SINGLE_WORD) 3820 goto error_out; 3821 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3822 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3823 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3824 /* Sanity check on PCI bar write command line arguments */ 3825 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3826 goto error_out; 3827 /* Write command to PCI bar space, read-modify-write */ 3828 acc_range = SINGLE_WORD; 3829 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3830 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3831 writel(value, mem_mapped_bar + offset); 3832 readl(mem_mapped_bar + offset); 3833 } 3834 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3835 u32val = readl(mem_mapped_bar + offset); 3836 u32val |= value; 3837 writel(u32val, mem_mapped_bar + offset); 3838 readl(mem_mapped_bar + offset); 3839 } 3840 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3841 u32val = readl(mem_mapped_bar + offset); 3842 u32val &= ~value; 3843 writel(u32val, mem_mapped_bar + offset); 3844 readl(mem_mapped_bar + offset); 3845 } 3846 } else 3847 /* All other opecodes are illegal for now */ 3848 goto error_out; 3849 3850 return nbytes; 3851 error_out: 3852 memset(&idiag, 0, sizeof(idiag)); 3853 return -EINVAL; 3854 } 3855 3856 static int 3857 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3858 char *pbuffer, int len) 3859 { 3860 if (!qp) 3861 return len; 3862 3863 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3864 "\t\t%s WQ info: ", wqtype); 3865 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3866 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3867 qp->assoc_qid, qp->q_cnt_1, 3868 (unsigned long long)qp->q_cnt_4); 3869 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3870 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3871 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]", 3872 qp->queue_id, qp->entry_count, 3873 qp->entry_size, qp->host_index, 3874 qp->hba_index, qp->notify_interval); 3875 len += scnprintf(pbuffer + len, 3876 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3877 return len; 3878 } 3879 3880 static int 3881 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3882 int *len, int max_cnt, int cq_id) 3883 { 3884 struct lpfc_queue *qp; 3885 int qidx; 3886 3887 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 3888 qp = phba->sli4_hba.hdwq[qidx].io_wq; 3889 if (qp->assoc_qid != cq_id) 3890 continue; 3891 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3892 if (*len >= max_cnt) 3893 return 1; 3894 } 3895 return 0; 3896 } 3897 3898 static int 3899 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3900 char *pbuffer, int len) 3901 { 3902 if (!qp) 3903 return len; 3904 3905 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3906 "\t%s CQ info: ", cqtype); 3907 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3908 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3909 "xabt:x%x wq:x%llx]\n", 3910 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3911 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3912 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3913 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3914 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d]", 3915 qp->queue_id, qp->entry_count, 3916 qp->entry_size, qp->host_index, 3917 qp->notify_interval, qp->max_proc_limit); 3918 3919 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3920 "\n"); 3921 3922 return len; 3923 } 3924 3925 static int 3926 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3927 char *rqtype, char *pbuffer, int len) 3928 { 3929 if (!qp || !datqp) 3930 return len; 3931 3932 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3933 "\t\t%s RQ info: ", rqtype); 3934 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3935 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3936 "posted:x%x rcv:x%llx]\n", 3937 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3938 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3939 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3940 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3941 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3942 qp->queue_id, qp->entry_count, qp->entry_size, 3943 qp->host_index, qp->hba_index, qp->notify_interval); 3944 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3945 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3946 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3947 datqp->queue_id, datqp->entry_count, 3948 datqp->entry_size, datqp->host_index, 3949 datqp->hba_index, datqp->notify_interval); 3950 return len; 3951 } 3952 3953 static int 3954 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3955 int *len, int max_cnt, int eqidx, int eq_id) 3956 { 3957 struct lpfc_queue *qp; 3958 int rc; 3959 3960 qp = phba->sli4_hba.hdwq[eqidx].io_cq; 3961 3962 *len = __lpfc_idiag_print_cq(qp, "IO", pbuffer, *len); 3963 3964 /* Reset max counter */ 3965 qp->CQ_max_cqe = 0; 3966 3967 if (*len >= max_cnt) 3968 return 1; 3969 3970 rc = lpfc_idiag_wqs_for_cq(phba, "IO", pbuffer, len, 3971 max_cnt, qp->queue_id); 3972 if (rc) 3973 return 1; 3974 3975 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) { 3976 /* NVMET CQset */ 3977 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 3978 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 3979 3980 /* Reset max counter */ 3981 qp->CQ_max_cqe = 0; 3982 3983 if (*len >= max_cnt) 3984 return 1; 3985 3986 /* RQ header */ 3987 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 3988 *len = __lpfc_idiag_print_rqpair(qp, 3989 phba->sli4_hba.nvmet_mrq_data[eqidx], 3990 "NVMET MRQ", pbuffer, *len); 3991 3992 if (*len >= max_cnt) 3993 return 1; 3994 } 3995 3996 return 0; 3997 } 3998 3999 static int 4000 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 4001 char *pbuffer, int len) 4002 { 4003 if (!qp) 4004 return len; 4005 4006 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4007 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 4008 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n", 4009 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 4010 (unsigned long long)qp->q_cnt_4, qp->q_mode); 4011 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4012 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 4013 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]", 4014 qp->queue_id, qp->entry_count, qp->entry_size, 4015 qp->host_index, qp->notify_interval, 4016 qp->max_proc_limit, qp->chann); 4017 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4018 "\n"); 4019 4020 return len; 4021 } 4022 4023 /** 4024 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 4025 * @file: The file pointer to read from. 4026 * @buf: The buffer to copy the data to. 4027 * @nbytes: The number of bytes to read. 4028 * @ppos: The position in the file to start reading from. 4029 * 4030 * Description: 4031 * This routine reads data from the @phba SLI4 PCI function queue information, 4032 * and copies to user @buf. 4033 * This routine only returns 1 EQs worth of information. It remembers the last 4034 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 4035 * retrieve all EQs allocated for the phba. 4036 * 4037 * Returns: 4038 * This function returns the amount of data that was read (this could be less 4039 * than @nbytes if the end of the file was reached) or a negative error value. 4040 **/ 4041 static ssize_t 4042 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 4043 loff_t *ppos) 4044 { 4045 struct lpfc_debug *debug = file->private_data; 4046 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4047 char *pbuffer; 4048 int max_cnt, rc, x, len = 0; 4049 struct lpfc_queue *qp = NULL; 4050 4051 if (!debug->buffer) 4052 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 4053 if (!debug->buffer) 4054 return 0; 4055 pbuffer = debug->buffer; 4056 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 4057 4058 if (*ppos) 4059 return 0; 4060 4061 spin_lock_irq(&phba->hbalock); 4062 4063 /* Fast-path event queue */ 4064 if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) { 4065 4066 x = phba->lpfc_idiag_last_eq; 4067 phba->lpfc_idiag_last_eq++; 4068 if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue) 4069 phba->lpfc_idiag_last_eq = 0; 4070 4071 len += scnprintf(pbuffer + len, 4072 LPFC_QUE_INFO_GET_BUF_SIZE - len, 4073 "HDWQ %d out of %d HBA HDWQs\n", 4074 x, phba->cfg_hdw_queue); 4075 4076 /* Fast-path EQ */ 4077 qp = phba->sli4_hba.hdwq[x].hba_eq; 4078 if (!qp) 4079 goto out; 4080 4081 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 4082 4083 /* Reset max counter */ 4084 qp->EQ_max_eqe = 0; 4085 4086 if (len >= max_cnt) 4087 goto too_big; 4088 4089 /* will dump both fcp and nvme cqs/wqs for the eq */ 4090 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 4091 max_cnt, x, qp->queue_id); 4092 if (rc) 4093 goto too_big; 4094 4095 /* Only EQ 0 has slow path CQs configured */ 4096 if (x) 4097 goto out; 4098 4099 /* Slow-path mailbox CQ */ 4100 qp = phba->sli4_hba.mbx_cq; 4101 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 4102 if (len >= max_cnt) 4103 goto too_big; 4104 4105 /* Slow-path MBOX MQ */ 4106 qp = phba->sli4_hba.mbx_wq; 4107 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 4108 if (len >= max_cnt) 4109 goto too_big; 4110 4111 /* Slow-path ELS response CQ */ 4112 qp = phba->sli4_hba.els_cq; 4113 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 4114 /* Reset max counter */ 4115 if (qp) 4116 qp->CQ_max_cqe = 0; 4117 if (len >= max_cnt) 4118 goto too_big; 4119 4120 /* Slow-path ELS WQ */ 4121 qp = phba->sli4_hba.els_wq; 4122 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 4123 if (len >= max_cnt) 4124 goto too_big; 4125 4126 qp = phba->sli4_hba.hdr_rq; 4127 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 4128 "ELS RQpair", pbuffer, len); 4129 if (len >= max_cnt) 4130 goto too_big; 4131 4132 /* Slow-path NVME LS response CQ */ 4133 qp = phba->sli4_hba.nvmels_cq; 4134 len = __lpfc_idiag_print_cq(qp, "NVME LS", 4135 pbuffer, len); 4136 /* Reset max counter */ 4137 if (qp) 4138 qp->CQ_max_cqe = 0; 4139 if (len >= max_cnt) 4140 goto too_big; 4141 4142 /* Slow-path NVME LS WQ */ 4143 qp = phba->sli4_hba.nvmels_wq; 4144 len = __lpfc_idiag_print_wq(qp, "NVME LS", 4145 pbuffer, len); 4146 if (len >= max_cnt) 4147 goto too_big; 4148 4149 goto out; 4150 } 4151 4152 spin_unlock_irq(&phba->hbalock); 4153 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4154 4155 too_big: 4156 len += scnprintf(pbuffer + len, 4157 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 4158 out: 4159 spin_unlock_irq(&phba->hbalock); 4160 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4161 } 4162 4163 /** 4164 * lpfc_idiag_que_param_check - queue access command parameter sanity check 4165 * @q: The pointer to queue structure. 4166 * @index: The index into a queue entry. 4167 * @count: The number of queue entries to access. 4168 * 4169 * Description: 4170 * The routine performs sanity check on device queue access method commands. 4171 * 4172 * Returns: 4173 * This function returns -EINVAL when fails the sanity check, otherwise, it 4174 * returns 0. 4175 **/ 4176 static int 4177 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 4178 { 4179 /* Only support single entry read or browsing */ 4180 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 4181 return -EINVAL; 4182 if (index > q->entry_count - 1) 4183 return -EINVAL; 4184 return 0; 4185 } 4186 4187 /** 4188 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 4189 * @pbuffer: The pointer to buffer to copy the read data into. 4190 * @len: Length of the buffer. 4191 * @pque: The pointer to the queue to be read. 4192 * @index: The index into the queue entry. 4193 * 4194 * Description: 4195 * This routine reads out a single entry from the given queue's index location 4196 * and copies it into the buffer provided. 4197 * 4198 * Returns: 4199 * This function returns 0 when it fails, otherwise, it returns the length of 4200 * the data read into the buffer provided. 4201 **/ 4202 static int 4203 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 4204 uint32_t index) 4205 { 4206 int offset, esize; 4207 uint32_t *pentry; 4208 4209 if (!pbuffer || !pque) 4210 return 0; 4211 4212 esize = pque->entry_size; 4213 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4214 "QE-INDEX[%04d]:\n", index); 4215 4216 offset = 0; 4217 pentry = lpfc_sli4_qe(pque, index); 4218 while (esize > 0) { 4219 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4220 "%08x ", *pentry); 4221 pentry++; 4222 offset += sizeof(uint32_t); 4223 esize -= sizeof(uint32_t); 4224 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 4225 len += scnprintf(pbuffer+len, 4226 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4227 } 4228 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4229 4230 return len; 4231 } 4232 4233 /** 4234 * lpfc_idiag_queacc_read - idiag debugfs read port queue 4235 * @file: The file pointer to read from. 4236 * @buf: The buffer to copy the data to. 4237 * @nbytes: The number of bytes to read. 4238 * @ppos: The position in the file to start reading from. 4239 * 4240 * Description: 4241 * This routine reads data from the @phba device queue memory according to the 4242 * idiag command, and copies to user @buf. Depending on the queue dump read 4243 * command setup, it does either a single queue entry read or browing through 4244 * all entries of the queue. 4245 * 4246 * Returns: 4247 * This function returns the amount of data that was read (this could be less 4248 * than @nbytes if the end of the file was reached) or a negative error value. 4249 **/ 4250 static ssize_t 4251 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 4252 loff_t *ppos) 4253 { 4254 struct lpfc_debug *debug = file->private_data; 4255 uint32_t last_index, index, count; 4256 struct lpfc_queue *pque = NULL; 4257 char *pbuffer; 4258 int len = 0; 4259 4260 /* This is a user read operation */ 4261 debug->op = LPFC_IDIAG_OP_RD; 4262 4263 if (!debug->buffer) 4264 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 4265 if (!debug->buffer) 4266 return 0; 4267 pbuffer = debug->buffer; 4268 4269 if (*ppos) 4270 return 0; 4271 4272 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4273 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4274 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4275 pque = (struct lpfc_queue *)idiag.ptr_private; 4276 } else 4277 return 0; 4278 4279 /* Browse the queue starting from index */ 4280 if (count == LPFC_QUE_ACC_BROWSE) 4281 goto que_browse; 4282 4283 /* Read a single entry from the queue */ 4284 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4285 4286 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4287 4288 que_browse: 4289 4290 /* Browse all entries from the queue */ 4291 last_index = idiag.offset.last_rd; 4292 index = last_index; 4293 4294 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 4295 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4296 index++; 4297 if (index > pque->entry_count - 1) 4298 break; 4299 } 4300 4301 /* Set up the offset for next portion of pci cfg read */ 4302 if (index > pque->entry_count - 1) 4303 index = 0; 4304 idiag.offset.last_rd = index; 4305 4306 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4307 } 4308 4309 /** 4310 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 4311 * @file: The file pointer to read from. 4312 * @buf: The buffer to copy the user data from. 4313 * @nbytes: The number of bytes to get. 4314 * @ppos: The position in the file to start reading from. 4315 * 4316 * This routine get the debugfs idiag command struct from user space and then 4317 * perform the syntax check for port queue read (dump) or write (set) command 4318 * accordingly. In the case of port queue read command, it sets up the command 4319 * in the idiag command struct for the following debugfs read operation. In 4320 * the case of port queue write operation, it executes the write operation 4321 * into the port queue entry accordingly. 4322 * 4323 * It returns the @nbytges passing in from debugfs user space when successful. 4324 * In case of error conditions, it returns proper error code back to the user 4325 * space. 4326 **/ 4327 static ssize_t 4328 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 4329 size_t nbytes, loff_t *ppos) 4330 { 4331 struct lpfc_debug *debug = file->private_data; 4332 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4333 uint32_t qidx, quetp, queid, index, count, offset, value; 4334 uint32_t *pentry; 4335 struct lpfc_queue *pque, *qp; 4336 int rc; 4337 4338 /* This is a user write operation */ 4339 debug->op = LPFC_IDIAG_OP_WR; 4340 4341 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4342 if (rc < 0) 4343 return rc; 4344 4345 /* Get and sanity check on command feilds */ 4346 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 4347 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 4348 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4349 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4350 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 4351 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 4352 4353 /* Sanity check on command line arguments */ 4354 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4355 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4356 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4357 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 4358 goto error_out; 4359 if (count != 1) 4360 goto error_out; 4361 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4362 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 4363 goto error_out; 4364 } else 4365 goto error_out; 4366 4367 switch (quetp) { 4368 case LPFC_IDIAG_EQ: 4369 /* HBA event queue */ 4370 if (phba->sli4_hba.hdwq) { 4371 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4372 qp = phba->sli4_hba.hdwq[qidx].hba_eq; 4373 if (qp && qp->queue_id == queid) { 4374 /* Sanity check */ 4375 rc = lpfc_idiag_que_param_check(qp, 4376 index, count); 4377 if (rc) 4378 goto error_out; 4379 idiag.ptr_private = qp; 4380 goto pass_check; 4381 } 4382 } 4383 } 4384 goto error_out; 4385 4386 case LPFC_IDIAG_CQ: 4387 /* MBX complete queue */ 4388 if (phba->sli4_hba.mbx_cq && 4389 phba->sli4_hba.mbx_cq->queue_id == queid) { 4390 /* Sanity check */ 4391 rc = lpfc_idiag_que_param_check( 4392 phba->sli4_hba.mbx_cq, index, count); 4393 if (rc) 4394 goto error_out; 4395 idiag.ptr_private = phba->sli4_hba.mbx_cq; 4396 goto pass_check; 4397 } 4398 /* ELS complete queue */ 4399 if (phba->sli4_hba.els_cq && 4400 phba->sli4_hba.els_cq->queue_id == queid) { 4401 /* Sanity check */ 4402 rc = lpfc_idiag_que_param_check( 4403 phba->sli4_hba.els_cq, index, count); 4404 if (rc) 4405 goto error_out; 4406 idiag.ptr_private = phba->sli4_hba.els_cq; 4407 goto pass_check; 4408 } 4409 /* NVME LS complete queue */ 4410 if (phba->sli4_hba.nvmels_cq && 4411 phba->sli4_hba.nvmels_cq->queue_id == queid) { 4412 /* Sanity check */ 4413 rc = lpfc_idiag_que_param_check( 4414 phba->sli4_hba.nvmels_cq, index, count); 4415 if (rc) 4416 goto error_out; 4417 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 4418 goto pass_check; 4419 } 4420 /* FCP complete queue */ 4421 if (phba->sli4_hba.hdwq) { 4422 for (qidx = 0; qidx < phba->cfg_hdw_queue; 4423 qidx++) { 4424 qp = phba->sli4_hba.hdwq[qidx].io_cq; 4425 if (qp && qp->queue_id == queid) { 4426 /* Sanity check */ 4427 rc = lpfc_idiag_que_param_check( 4428 qp, index, count); 4429 if (rc) 4430 goto error_out; 4431 idiag.ptr_private = qp; 4432 goto pass_check; 4433 } 4434 } 4435 } 4436 goto error_out; 4437 4438 case LPFC_IDIAG_MQ: 4439 /* MBX work queue */ 4440 if (phba->sli4_hba.mbx_wq && 4441 phba->sli4_hba.mbx_wq->queue_id == queid) { 4442 /* Sanity check */ 4443 rc = lpfc_idiag_que_param_check( 4444 phba->sli4_hba.mbx_wq, index, count); 4445 if (rc) 4446 goto error_out; 4447 idiag.ptr_private = phba->sli4_hba.mbx_wq; 4448 goto pass_check; 4449 } 4450 goto error_out; 4451 4452 case LPFC_IDIAG_WQ: 4453 /* ELS work queue */ 4454 if (phba->sli4_hba.els_wq && 4455 phba->sli4_hba.els_wq->queue_id == queid) { 4456 /* Sanity check */ 4457 rc = lpfc_idiag_que_param_check( 4458 phba->sli4_hba.els_wq, index, count); 4459 if (rc) 4460 goto error_out; 4461 idiag.ptr_private = phba->sli4_hba.els_wq; 4462 goto pass_check; 4463 } 4464 /* NVME LS work queue */ 4465 if (phba->sli4_hba.nvmels_wq && 4466 phba->sli4_hba.nvmels_wq->queue_id == queid) { 4467 /* Sanity check */ 4468 rc = lpfc_idiag_que_param_check( 4469 phba->sli4_hba.nvmels_wq, index, count); 4470 if (rc) 4471 goto error_out; 4472 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 4473 goto pass_check; 4474 } 4475 4476 if (phba->sli4_hba.hdwq) { 4477 /* FCP/SCSI work queue */ 4478 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4479 qp = phba->sli4_hba.hdwq[qidx].io_wq; 4480 if (qp && qp->queue_id == queid) { 4481 /* Sanity check */ 4482 rc = lpfc_idiag_que_param_check( 4483 qp, index, count); 4484 if (rc) 4485 goto error_out; 4486 idiag.ptr_private = qp; 4487 goto pass_check; 4488 } 4489 } 4490 } 4491 goto error_out; 4492 4493 case LPFC_IDIAG_RQ: 4494 /* HDR queue */ 4495 if (phba->sli4_hba.hdr_rq && 4496 phba->sli4_hba.hdr_rq->queue_id == queid) { 4497 /* Sanity check */ 4498 rc = lpfc_idiag_que_param_check( 4499 phba->sli4_hba.hdr_rq, index, count); 4500 if (rc) 4501 goto error_out; 4502 idiag.ptr_private = phba->sli4_hba.hdr_rq; 4503 goto pass_check; 4504 } 4505 /* DAT queue */ 4506 if (phba->sli4_hba.dat_rq && 4507 phba->sli4_hba.dat_rq->queue_id == queid) { 4508 /* Sanity check */ 4509 rc = lpfc_idiag_que_param_check( 4510 phba->sli4_hba.dat_rq, index, count); 4511 if (rc) 4512 goto error_out; 4513 idiag.ptr_private = phba->sli4_hba.dat_rq; 4514 goto pass_check; 4515 } 4516 goto error_out; 4517 default: 4518 goto error_out; 4519 } 4520 4521 pass_check: 4522 4523 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4524 if (count == LPFC_QUE_ACC_BROWSE) 4525 idiag.offset.last_rd = index; 4526 } 4527 4528 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4529 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4530 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4531 /* Additional sanity checks on write operation */ 4532 pque = (struct lpfc_queue *)idiag.ptr_private; 4533 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 4534 goto error_out; 4535 pentry = lpfc_sli4_qe(pque, index); 4536 pentry += offset; 4537 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 4538 *pentry = value; 4539 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 4540 *pentry |= value; 4541 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 4542 *pentry &= ~value; 4543 } 4544 return nbytes; 4545 4546 error_out: 4547 /* Clean out command structure on command error out */ 4548 memset(&idiag, 0, sizeof(idiag)); 4549 return -EINVAL; 4550 } 4551 4552 /** 4553 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 4554 * @phba: The pointer to hba structure. 4555 * @pbuffer: The pointer to the buffer to copy the data to. 4556 * @len: The length of bytes to copied. 4557 * @drbregid: The id to doorbell registers. 4558 * 4559 * Description: 4560 * This routine reads a doorbell register and copies its content to the 4561 * user buffer pointed to by @pbuffer. 4562 * 4563 * Returns: 4564 * This function returns the amount of data that was copied into @pbuffer. 4565 **/ 4566 static int 4567 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4568 int len, uint32_t drbregid) 4569 { 4570 4571 if (!pbuffer) 4572 return 0; 4573 4574 switch (drbregid) { 4575 case LPFC_DRB_EQ: 4576 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len, 4577 "EQ-DRB-REG: 0x%08x\n", 4578 readl(phba->sli4_hba.EQDBregaddr)); 4579 break; 4580 case LPFC_DRB_CQ: 4581 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len, 4582 "CQ-DRB-REG: 0x%08x\n", 4583 readl(phba->sli4_hba.CQDBregaddr)); 4584 break; 4585 case LPFC_DRB_MQ: 4586 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4587 "MQ-DRB-REG: 0x%08x\n", 4588 readl(phba->sli4_hba.MQDBregaddr)); 4589 break; 4590 case LPFC_DRB_WQ: 4591 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4592 "WQ-DRB-REG: 0x%08x\n", 4593 readl(phba->sli4_hba.WQDBregaddr)); 4594 break; 4595 case LPFC_DRB_RQ: 4596 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4597 "RQ-DRB-REG: 0x%08x\n", 4598 readl(phba->sli4_hba.RQDBregaddr)); 4599 break; 4600 default: 4601 break; 4602 } 4603 4604 return len; 4605 } 4606 4607 /** 4608 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 4609 * @file: The file pointer to read from. 4610 * @buf: The buffer to copy the data to. 4611 * @nbytes: The number of bytes to read. 4612 * @ppos: The position in the file to start reading from. 4613 * 4614 * Description: 4615 * This routine reads data from the @phba device doorbell register according 4616 * to the idiag command, and copies to user @buf. Depending on the doorbell 4617 * register read command setup, it does either a single doorbell register 4618 * read or dump all doorbell registers. 4619 * 4620 * Returns: 4621 * This function returns the amount of data that was read (this could be less 4622 * than @nbytes if the end of the file was reached) or a negative error value. 4623 **/ 4624 static ssize_t 4625 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 4626 loff_t *ppos) 4627 { 4628 struct lpfc_debug *debug = file->private_data; 4629 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4630 uint32_t drb_reg_id, i; 4631 char *pbuffer; 4632 int len = 0; 4633 4634 /* This is a user read operation */ 4635 debug->op = LPFC_IDIAG_OP_RD; 4636 4637 if (!debug->buffer) 4638 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 4639 if (!debug->buffer) 4640 return 0; 4641 pbuffer = debug->buffer; 4642 4643 if (*ppos) 4644 return 0; 4645 4646 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 4647 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4648 else 4649 return 0; 4650 4651 if (drb_reg_id == LPFC_DRB_ACC_ALL) 4652 for (i = 1; i <= LPFC_DRB_MAX; i++) 4653 len = lpfc_idiag_drbacc_read_reg(phba, 4654 pbuffer, len, i); 4655 else 4656 len = lpfc_idiag_drbacc_read_reg(phba, 4657 pbuffer, len, drb_reg_id); 4658 4659 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4660 } 4661 4662 /** 4663 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 4664 * @file: The file pointer to read from. 4665 * @buf: The buffer to copy the user data from. 4666 * @nbytes: The number of bytes to get. 4667 * @ppos: The position in the file to start reading from. 4668 * 4669 * This routine get the debugfs idiag command struct from user space and then 4670 * perform the syntax check for port doorbell register read (dump) or write 4671 * (set) command accordingly. In the case of port queue read command, it sets 4672 * up the command in the idiag command struct for the following debugfs read 4673 * operation. In the case of port doorbell register write operation, it 4674 * executes the write operation into the port doorbell register accordingly. 4675 * 4676 * It returns the @nbytges passing in from debugfs user space when successful. 4677 * In case of error conditions, it returns proper error code back to the user 4678 * space. 4679 **/ 4680 static ssize_t 4681 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 4682 size_t nbytes, loff_t *ppos) 4683 { 4684 struct lpfc_debug *debug = file->private_data; 4685 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4686 uint32_t drb_reg_id, value, reg_val = 0; 4687 void __iomem *drb_reg; 4688 int rc; 4689 4690 /* This is a user write operation */ 4691 debug->op = LPFC_IDIAG_OP_WR; 4692 4693 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4694 if (rc < 0) 4695 return rc; 4696 4697 /* Sanity check on command line arguments */ 4698 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4699 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4700 4701 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4702 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4703 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4704 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4705 goto error_out; 4706 if (drb_reg_id > LPFC_DRB_MAX) 4707 goto error_out; 4708 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4709 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4710 goto error_out; 4711 if ((drb_reg_id > LPFC_DRB_MAX) && 4712 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4713 goto error_out; 4714 } else 4715 goto error_out; 4716 4717 /* Perform the write access operation */ 4718 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4719 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4720 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4721 switch (drb_reg_id) { 4722 case LPFC_DRB_EQ: 4723 drb_reg = phba->sli4_hba.EQDBregaddr; 4724 break; 4725 case LPFC_DRB_CQ: 4726 drb_reg = phba->sli4_hba.CQDBregaddr; 4727 break; 4728 case LPFC_DRB_MQ: 4729 drb_reg = phba->sli4_hba.MQDBregaddr; 4730 break; 4731 case LPFC_DRB_WQ: 4732 drb_reg = phba->sli4_hba.WQDBregaddr; 4733 break; 4734 case LPFC_DRB_RQ: 4735 drb_reg = phba->sli4_hba.RQDBregaddr; 4736 break; 4737 default: 4738 goto error_out; 4739 } 4740 4741 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4742 reg_val = value; 4743 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4744 reg_val = readl(drb_reg); 4745 reg_val |= value; 4746 } 4747 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4748 reg_val = readl(drb_reg); 4749 reg_val &= ~value; 4750 } 4751 writel(reg_val, drb_reg); 4752 readl(drb_reg); /* flush */ 4753 } 4754 return nbytes; 4755 4756 error_out: 4757 /* Clean out command structure on command error out */ 4758 memset(&idiag, 0, sizeof(idiag)); 4759 return -EINVAL; 4760 } 4761 4762 /** 4763 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4764 * @phba: The pointer to hba structure. 4765 * @pbuffer: The pointer to the buffer to copy the data to. 4766 * @len: The length of bytes to copied. 4767 * @ctlregid: The id to doorbell registers. 4768 * 4769 * Description: 4770 * This routine reads a control register and copies its content to the 4771 * user buffer pointed to by @pbuffer. 4772 * 4773 * Returns: 4774 * This function returns the amount of data that was copied into @pbuffer. 4775 **/ 4776 static int 4777 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4778 int len, uint32_t ctlregid) 4779 { 4780 4781 if (!pbuffer) 4782 return 0; 4783 4784 switch (ctlregid) { 4785 case LPFC_CTL_PORT_SEM: 4786 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4787 "Port SemReg: 0x%08x\n", 4788 readl(phba->sli4_hba.conf_regs_memmap_p + 4789 LPFC_CTL_PORT_SEM_OFFSET)); 4790 break; 4791 case LPFC_CTL_PORT_STA: 4792 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4793 "Port StaReg: 0x%08x\n", 4794 readl(phba->sli4_hba.conf_regs_memmap_p + 4795 LPFC_CTL_PORT_STA_OFFSET)); 4796 break; 4797 case LPFC_CTL_PORT_CTL: 4798 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4799 "Port CtlReg: 0x%08x\n", 4800 readl(phba->sli4_hba.conf_regs_memmap_p + 4801 LPFC_CTL_PORT_CTL_OFFSET)); 4802 break; 4803 case LPFC_CTL_PORT_ER1: 4804 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4805 "Port Er1Reg: 0x%08x\n", 4806 readl(phba->sli4_hba.conf_regs_memmap_p + 4807 LPFC_CTL_PORT_ER1_OFFSET)); 4808 break; 4809 case LPFC_CTL_PORT_ER2: 4810 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4811 "Port Er2Reg: 0x%08x\n", 4812 readl(phba->sli4_hba.conf_regs_memmap_p + 4813 LPFC_CTL_PORT_ER2_OFFSET)); 4814 break; 4815 case LPFC_CTL_PDEV_CTL: 4816 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4817 "PDev CtlReg: 0x%08x\n", 4818 readl(phba->sli4_hba.conf_regs_memmap_p + 4819 LPFC_CTL_PDEV_CTL_OFFSET)); 4820 break; 4821 default: 4822 break; 4823 } 4824 return len; 4825 } 4826 4827 /** 4828 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4829 * @file: The file pointer to read from. 4830 * @buf: The buffer to copy the data to. 4831 * @nbytes: The number of bytes to read. 4832 * @ppos: The position in the file to start reading from. 4833 * 4834 * Description: 4835 * This routine reads data from the @phba port and device registers according 4836 * to the idiag command, and copies to user @buf. 4837 * 4838 * Returns: 4839 * This function returns the amount of data that was read (this could be less 4840 * than @nbytes if the end of the file was reached) or a negative error value. 4841 **/ 4842 static ssize_t 4843 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4844 loff_t *ppos) 4845 { 4846 struct lpfc_debug *debug = file->private_data; 4847 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4848 uint32_t ctl_reg_id, i; 4849 char *pbuffer; 4850 int len = 0; 4851 4852 /* This is a user read operation */ 4853 debug->op = LPFC_IDIAG_OP_RD; 4854 4855 if (!debug->buffer) 4856 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4857 if (!debug->buffer) 4858 return 0; 4859 pbuffer = debug->buffer; 4860 4861 if (*ppos) 4862 return 0; 4863 4864 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4865 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4866 else 4867 return 0; 4868 4869 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4870 for (i = 1; i <= LPFC_CTL_MAX; i++) 4871 len = lpfc_idiag_ctlacc_read_reg(phba, 4872 pbuffer, len, i); 4873 else 4874 len = lpfc_idiag_ctlacc_read_reg(phba, 4875 pbuffer, len, ctl_reg_id); 4876 4877 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4878 } 4879 4880 /** 4881 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4882 * @file: The file pointer to read from. 4883 * @buf: The buffer to copy the user data from. 4884 * @nbytes: The number of bytes to get. 4885 * @ppos: The position in the file to start reading from. 4886 * 4887 * This routine get the debugfs idiag command struct from user space and then 4888 * perform the syntax check for port and device control register read (dump) 4889 * or write (set) command accordingly. 4890 * 4891 * It returns the @nbytges passing in from debugfs user space when successful. 4892 * In case of error conditions, it returns proper error code back to the user 4893 * space. 4894 **/ 4895 static ssize_t 4896 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4897 size_t nbytes, loff_t *ppos) 4898 { 4899 struct lpfc_debug *debug = file->private_data; 4900 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4901 uint32_t ctl_reg_id, value, reg_val = 0; 4902 void __iomem *ctl_reg; 4903 int rc; 4904 4905 /* This is a user write operation */ 4906 debug->op = LPFC_IDIAG_OP_WR; 4907 4908 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4909 if (rc < 0) 4910 return rc; 4911 4912 /* Sanity check on command line arguments */ 4913 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4914 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4915 4916 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4917 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4918 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4919 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4920 goto error_out; 4921 if (ctl_reg_id > LPFC_CTL_MAX) 4922 goto error_out; 4923 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4924 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4925 goto error_out; 4926 if ((ctl_reg_id > LPFC_CTL_MAX) && 4927 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4928 goto error_out; 4929 } else 4930 goto error_out; 4931 4932 /* Perform the write access operation */ 4933 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4934 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4935 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4936 switch (ctl_reg_id) { 4937 case LPFC_CTL_PORT_SEM: 4938 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4939 LPFC_CTL_PORT_SEM_OFFSET; 4940 break; 4941 case LPFC_CTL_PORT_STA: 4942 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4943 LPFC_CTL_PORT_STA_OFFSET; 4944 break; 4945 case LPFC_CTL_PORT_CTL: 4946 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4947 LPFC_CTL_PORT_CTL_OFFSET; 4948 break; 4949 case LPFC_CTL_PORT_ER1: 4950 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4951 LPFC_CTL_PORT_ER1_OFFSET; 4952 break; 4953 case LPFC_CTL_PORT_ER2: 4954 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4955 LPFC_CTL_PORT_ER2_OFFSET; 4956 break; 4957 case LPFC_CTL_PDEV_CTL: 4958 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4959 LPFC_CTL_PDEV_CTL_OFFSET; 4960 break; 4961 default: 4962 goto error_out; 4963 } 4964 4965 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4966 reg_val = value; 4967 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4968 reg_val = readl(ctl_reg); 4969 reg_val |= value; 4970 } 4971 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4972 reg_val = readl(ctl_reg); 4973 reg_val &= ~value; 4974 } 4975 writel(reg_val, ctl_reg); 4976 readl(ctl_reg); /* flush */ 4977 } 4978 return nbytes; 4979 4980 error_out: 4981 /* Clean out command structure on command error out */ 4982 memset(&idiag, 0, sizeof(idiag)); 4983 return -EINVAL; 4984 } 4985 4986 /** 4987 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 4988 * @phba: Pointer to HBA context object. 4989 * @pbuffer: Pointer to data buffer. 4990 * 4991 * Description: 4992 * This routine gets the driver mailbox access debugfs setup information. 4993 * 4994 * Returns: 4995 * This function returns the amount of data that was read (this could be less 4996 * than @nbytes if the end of the file was reached) or a negative error value. 4997 **/ 4998 static int 4999 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 5000 { 5001 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5002 int len = 0; 5003 5004 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5005 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5006 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5007 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5008 5009 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5010 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 5011 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5012 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 5013 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5014 "mbx_word_cnt: %04d\n", mbx_word_cnt); 5015 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5016 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 5017 5018 return len; 5019 } 5020 5021 /** 5022 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 5023 * @file: The file pointer to read from. 5024 * @buf: The buffer to copy the data to. 5025 * @nbytes: The number of bytes to read. 5026 * @ppos: The position in the file to start reading from. 5027 * 5028 * Description: 5029 * This routine reads data from the @phba driver mailbox access debugfs setup 5030 * information. 5031 * 5032 * Returns: 5033 * This function returns the amount of data that was read (this could be less 5034 * than @nbytes if the end of the file was reached) or a negative error value. 5035 **/ 5036 static ssize_t 5037 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 5038 loff_t *ppos) 5039 { 5040 struct lpfc_debug *debug = file->private_data; 5041 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5042 char *pbuffer; 5043 int len = 0; 5044 5045 /* This is a user read operation */ 5046 debug->op = LPFC_IDIAG_OP_RD; 5047 5048 if (!debug->buffer) 5049 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 5050 if (!debug->buffer) 5051 return 0; 5052 pbuffer = debug->buffer; 5053 5054 if (*ppos) 5055 return 0; 5056 5057 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 5058 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 5059 return 0; 5060 5061 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 5062 5063 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5064 } 5065 5066 /** 5067 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 5068 * @file: The file pointer to read from. 5069 * @buf: The buffer to copy the user data from. 5070 * @nbytes: The number of bytes to get. 5071 * @ppos: The position in the file to start reading from. 5072 * 5073 * This routine get the debugfs idiag command struct from user space and then 5074 * perform the syntax check for driver mailbox command (dump) and sets up the 5075 * necessary states in the idiag command struct accordingly. 5076 * 5077 * It returns the @nbytges passing in from debugfs user space when successful. 5078 * In case of error conditions, it returns proper error code back to the user 5079 * space. 5080 **/ 5081 static ssize_t 5082 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 5083 size_t nbytes, loff_t *ppos) 5084 { 5085 struct lpfc_debug *debug = file->private_data; 5086 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5087 int rc; 5088 5089 /* This is a user write operation */ 5090 debug->op = LPFC_IDIAG_OP_WR; 5091 5092 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5093 if (rc < 0) 5094 return rc; 5095 5096 /* Sanity check on command line arguments */ 5097 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5098 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5099 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5100 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5101 5102 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 5103 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 5104 goto error_out; 5105 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 5106 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5107 goto error_out; 5108 if (mbx_word_cnt > sizeof(MAILBOX_t)) 5109 goto error_out; 5110 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 5111 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 5112 goto error_out; 5113 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 5114 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5115 goto error_out; 5116 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 5117 goto error_out; 5118 if (mbx_mbox_cmd != 0x9b) 5119 goto error_out; 5120 } else 5121 goto error_out; 5122 5123 if (mbx_word_cnt == 0) 5124 goto error_out; 5125 if (rc != LPFC_MBX_DMP_ARG) 5126 goto error_out; 5127 if (mbx_mbox_cmd & ~0xff) 5128 goto error_out; 5129 5130 /* condition for stop mailbox dump */ 5131 if (mbx_dump_cnt == 0) 5132 goto reset_out; 5133 5134 return nbytes; 5135 5136 reset_out: 5137 /* Clean out command structure on command error out */ 5138 memset(&idiag, 0, sizeof(idiag)); 5139 return nbytes; 5140 5141 error_out: 5142 /* Clean out command structure on command error out */ 5143 memset(&idiag, 0, sizeof(idiag)); 5144 return -EINVAL; 5145 } 5146 5147 /** 5148 * lpfc_idiag_extacc_avail_get - get the available extents information 5149 * @phba: pointer to lpfc hba data structure. 5150 * @pbuffer: pointer to internal buffer. 5151 * @len: length into the internal buffer data has been copied. 5152 * 5153 * Description: 5154 * This routine is to get the available extent information. 5155 * 5156 * Returns: 5157 * overall length of the data read into the internal buffer. 5158 **/ 5159 static int 5160 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 5161 { 5162 uint16_t ext_cnt = 0, ext_size = 0; 5163 5164 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5165 "\nAvailable Extents Information:\n"); 5166 5167 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5168 "\tPort Available VPI extents: "); 5169 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 5170 &ext_cnt, &ext_size); 5171 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5172 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5173 5174 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5175 "\tPort Available VFI extents: "); 5176 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 5177 &ext_cnt, &ext_size); 5178 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5179 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5180 5181 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5182 "\tPort Available RPI extents: "); 5183 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 5184 &ext_cnt, &ext_size); 5185 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5186 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5187 5188 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5189 "\tPort Available XRI extents: "); 5190 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 5191 &ext_cnt, &ext_size); 5192 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5193 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5194 5195 return len; 5196 } 5197 5198 /** 5199 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 5200 * @phba: pointer to lpfc hba data structure. 5201 * @pbuffer: pointer to internal buffer. 5202 * @len: length into the internal buffer data has been copied. 5203 * 5204 * Description: 5205 * This routine is to get the allocated extent information. 5206 * 5207 * Returns: 5208 * overall length of the data read into the internal buffer. 5209 **/ 5210 static int 5211 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 5212 { 5213 uint16_t ext_cnt, ext_size; 5214 int rc; 5215 5216 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5217 "\nAllocated Extents Information:\n"); 5218 5219 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5220 "\tHost Allocated VPI extents: "); 5221 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 5222 &ext_cnt, &ext_size); 5223 if (!rc) 5224 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5225 "Port %d Extent %3d, Size %3d\n", 5226 phba->brd_no, ext_cnt, ext_size); 5227 else 5228 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5229 "N/A\n"); 5230 5231 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5232 "\tHost Allocated VFI extents: "); 5233 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 5234 &ext_cnt, &ext_size); 5235 if (!rc) 5236 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5237 "Port %d Extent %3d, Size %3d\n", 5238 phba->brd_no, ext_cnt, ext_size); 5239 else 5240 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5241 "N/A\n"); 5242 5243 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5244 "\tHost Allocated RPI extents: "); 5245 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 5246 &ext_cnt, &ext_size); 5247 if (!rc) 5248 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5249 "Port %d Extent %3d, Size %3d\n", 5250 phba->brd_no, ext_cnt, ext_size); 5251 else 5252 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5253 "N/A\n"); 5254 5255 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5256 "\tHost Allocated XRI extents: "); 5257 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 5258 &ext_cnt, &ext_size); 5259 if (!rc) 5260 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5261 "Port %d Extent %3d, Size %3d\n", 5262 phba->brd_no, ext_cnt, ext_size); 5263 else 5264 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5265 "N/A\n"); 5266 5267 return len; 5268 } 5269 5270 /** 5271 * lpfc_idiag_extacc_drivr_get - get driver extent information 5272 * @phba: pointer to lpfc hba data structure. 5273 * @pbuffer: pointer to internal buffer. 5274 * @len: length into the internal buffer data has been copied. 5275 * 5276 * Description: 5277 * This routine is to get the driver extent information. 5278 * 5279 * Returns: 5280 * overall length of the data read into the internal buffer. 5281 **/ 5282 static int 5283 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 5284 { 5285 struct lpfc_rsrc_blks *rsrc_blks; 5286 int index; 5287 5288 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5289 "\nDriver Extents Information:\n"); 5290 5291 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5292 "\tVPI extents:\n"); 5293 index = 0; 5294 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 5295 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5296 "\t\tBlock %3d: Start %4d, Count %4d\n", 5297 index, rsrc_blks->rsrc_start, 5298 rsrc_blks->rsrc_size); 5299 index++; 5300 } 5301 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5302 "\tVFI extents:\n"); 5303 index = 0; 5304 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 5305 list) { 5306 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5307 "\t\tBlock %3d: Start %4d, Count %4d\n", 5308 index, rsrc_blks->rsrc_start, 5309 rsrc_blks->rsrc_size); 5310 index++; 5311 } 5312 5313 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5314 "\tRPI extents:\n"); 5315 index = 0; 5316 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 5317 list) { 5318 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5319 "\t\tBlock %3d: Start %4d, Count %4d\n", 5320 index, rsrc_blks->rsrc_start, 5321 rsrc_blks->rsrc_size); 5322 index++; 5323 } 5324 5325 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5326 "\tXRI extents:\n"); 5327 index = 0; 5328 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 5329 list) { 5330 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5331 "\t\tBlock %3d: Start %4d, Count %4d\n", 5332 index, rsrc_blks->rsrc_start, 5333 rsrc_blks->rsrc_size); 5334 index++; 5335 } 5336 5337 return len; 5338 } 5339 5340 /** 5341 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 5342 * @file: The file pointer to read from. 5343 * @buf: The buffer to copy the user data from. 5344 * @nbytes: The number of bytes to get. 5345 * @ppos: The position in the file to start reading from. 5346 * 5347 * This routine get the debugfs idiag command struct from user space and then 5348 * perform the syntax check for extent information access commands and sets 5349 * up the necessary states in the idiag command struct accordingly. 5350 * 5351 * It returns the @nbytges passing in from debugfs user space when successful. 5352 * In case of error conditions, it returns proper error code back to the user 5353 * space. 5354 **/ 5355 static ssize_t 5356 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 5357 size_t nbytes, loff_t *ppos) 5358 { 5359 struct lpfc_debug *debug = file->private_data; 5360 uint32_t ext_map; 5361 int rc; 5362 5363 /* This is a user write operation */ 5364 debug->op = LPFC_IDIAG_OP_WR; 5365 5366 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5367 if (rc < 0) 5368 return rc; 5369 5370 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5371 5372 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5373 goto error_out; 5374 if (rc != LPFC_EXT_ACC_CMD_ARG) 5375 goto error_out; 5376 if (!(ext_map & LPFC_EXT_ACC_ALL)) 5377 goto error_out; 5378 5379 return nbytes; 5380 error_out: 5381 /* Clean out command structure on command error out */ 5382 memset(&idiag, 0, sizeof(idiag)); 5383 return -EINVAL; 5384 } 5385 5386 /** 5387 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 5388 * @file: The file pointer to read from. 5389 * @buf: The buffer to copy the data to. 5390 * @nbytes: The number of bytes to read. 5391 * @ppos: The position in the file to start reading from. 5392 * 5393 * Description: 5394 * This routine reads data from the proper extent information according to 5395 * the idiag command, and copies to user @buf. 5396 * 5397 * Returns: 5398 * This function returns the amount of data that was read (this could be less 5399 * than @nbytes if the end of the file was reached) or a negative error value. 5400 **/ 5401 static ssize_t 5402 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 5403 loff_t *ppos) 5404 { 5405 struct lpfc_debug *debug = file->private_data; 5406 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5407 char *pbuffer; 5408 uint32_t ext_map; 5409 int len = 0; 5410 5411 /* This is a user read operation */ 5412 debug->op = LPFC_IDIAG_OP_RD; 5413 5414 if (!debug->buffer) 5415 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 5416 if (!debug->buffer) 5417 return 0; 5418 pbuffer = debug->buffer; 5419 if (*ppos) 5420 return 0; 5421 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5422 return 0; 5423 5424 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5425 if (ext_map & LPFC_EXT_ACC_AVAIL) 5426 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 5427 if (ext_map & LPFC_EXT_ACC_ALLOC) 5428 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 5429 if (ext_map & LPFC_EXT_ACC_DRIVR) 5430 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 5431 5432 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5433 } 5434 5435 static int 5436 lpfc_cgn_buffer_open(struct inode *inode, struct file *file) 5437 { 5438 struct lpfc_debug *debug; 5439 int rc = -ENOMEM; 5440 5441 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 5442 if (!debug) 5443 goto out; 5444 5445 debug->buffer = vmalloc(LPFC_CGN_BUF_SIZE); 5446 if (!debug->buffer) { 5447 kfree(debug); 5448 goto out; 5449 } 5450 5451 debug->i_private = inode->i_private; 5452 file->private_data = debug; 5453 5454 rc = 0; 5455 out: 5456 return rc; 5457 } 5458 5459 static ssize_t 5460 lpfc_cgn_buffer_read(struct file *file, char __user *buf, size_t nbytes, 5461 loff_t *ppos) 5462 { 5463 struct lpfc_debug *debug = file->private_data; 5464 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5465 char *buffer = debug->buffer; 5466 uint32_t *ptr; 5467 int cnt, len = 0; 5468 5469 if (!phba->sli4_hba.pc_sli4_params.mi_ver || !phba->cgn_i) { 5470 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5471 "Congestion Mgmt is not supported\n"); 5472 goto out; 5473 } 5474 ptr = (uint32_t *)phba->cgn_i->virt; 5475 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5476 "Congestion Buffer Header\n"); 5477 /* Dump the first 32 bytes */ 5478 cnt = 32; 5479 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5480 "000: %08x %08x %08x %08x %08x %08x %08x %08x\n", 5481 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3), 5482 *(ptr + 4), *(ptr + 5), *(ptr + 6), *(ptr + 7)); 5483 ptr += 8; 5484 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5485 "Congestion Buffer Data\n"); 5486 while (cnt < sizeof(struct lpfc_cgn_info)) { 5487 if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { 5488 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5489 "Truncated . . .\n"); 5490 goto out; 5491 } 5492 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5493 "%03x: %08x %08x %08x %08x " 5494 "%08x %08x %08x %08x\n", 5495 cnt, *ptr, *(ptr + 1), *(ptr + 2), 5496 *(ptr + 3), *(ptr + 4), *(ptr + 5), 5497 *(ptr + 6), *(ptr + 7)); 5498 cnt += 32; 5499 ptr += 8; 5500 } 5501 if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { 5502 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5503 "Truncated . . .\n"); 5504 goto out; 5505 } 5506 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5507 "Parameter Data\n"); 5508 ptr = (uint32_t *)&phba->cgn_p; 5509 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5510 "%08x %08x %08x %08x\n", 5511 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3)); 5512 out: 5513 return simple_read_from_buffer(buf, nbytes, ppos, buffer, len); 5514 } 5515 5516 static int 5517 lpfc_cgn_buffer_release(struct inode *inode, struct file *file) 5518 { 5519 struct lpfc_debug *debug = file->private_data; 5520 5521 vfree(debug->buffer); 5522 kfree(debug); 5523 5524 return 0; 5525 } 5526 5527 static int 5528 lpfc_rx_monitor_open(struct inode *inode, struct file *file) 5529 { 5530 struct lpfc_rx_monitor_debug *debug; 5531 int rc = -ENOMEM; 5532 5533 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 5534 if (!debug) 5535 goto out; 5536 5537 debug->buffer = vmalloc(MAX_DEBUGFS_RX_INFO_SIZE); 5538 if (!debug->buffer) { 5539 kfree(debug); 5540 goto out; 5541 } 5542 5543 debug->i_private = inode->i_private; 5544 file->private_data = debug; 5545 5546 rc = 0; 5547 out: 5548 return rc; 5549 } 5550 5551 static ssize_t 5552 lpfc_rx_monitor_read(struct file *file, char __user *buf, size_t nbytes, 5553 loff_t *ppos) 5554 { 5555 struct lpfc_rx_monitor_debug *debug = file->private_data; 5556 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5557 char *buffer = debug->buffer; 5558 5559 if (!phba->rx_monitor) { 5560 scnprintf(buffer, MAX_DEBUGFS_RX_INFO_SIZE, 5561 "Rx Monitor Info is empty.\n"); 5562 } else { 5563 lpfc_rx_monitor_report(phba, phba->rx_monitor, buffer, 5564 MAX_DEBUGFS_RX_INFO_SIZE, 5565 LPFC_MAX_RXMONITOR_ENTRY); 5566 } 5567 5568 return simple_read_from_buffer(buf, nbytes, ppos, buffer, 5569 strlen(buffer)); 5570 } 5571 5572 static int 5573 lpfc_rx_monitor_release(struct inode *inode, struct file *file) 5574 { 5575 struct lpfc_rx_monitor_debug *debug = file->private_data; 5576 5577 vfree(debug->buffer); 5578 kfree(debug); 5579 5580 return 0; 5581 } 5582 5583 #undef lpfc_debugfs_op_disc_trc 5584 static const struct file_operations lpfc_debugfs_op_disc_trc = { 5585 .owner = THIS_MODULE, 5586 .open = lpfc_debugfs_disc_trc_open, 5587 .llseek = lpfc_debugfs_lseek, 5588 .read = lpfc_debugfs_read, 5589 .release = lpfc_debugfs_release, 5590 }; 5591 5592 #undef lpfc_debugfs_op_nodelist 5593 static const struct file_operations lpfc_debugfs_op_nodelist = { 5594 .owner = THIS_MODULE, 5595 .open = lpfc_debugfs_nodelist_open, 5596 .llseek = lpfc_debugfs_lseek, 5597 .read = lpfc_debugfs_read, 5598 .release = lpfc_debugfs_release, 5599 }; 5600 5601 #undef lpfc_debugfs_op_multixripools 5602 static const struct file_operations lpfc_debugfs_op_multixripools = { 5603 .owner = THIS_MODULE, 5604 .open = lpfc_debugfs_multixripools_open, 5605 .llseek = lpfc_debugfs_lseek, 5606 .read = lpfc_debugfs_read, 5607 .write = lpfc_debugfs_multixripools_write, 5608 .release = lpfc_debugfs_release, 5609 }; 5610 5611 #undef lpfc_debugfs_op_hbqinfo 5612 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 5613 .owner = THIS_MODULE, 5614 .open = lpfc_debugfs_hbqinfo_open, 5615 .llseek = lpfc_debugfs_lseek, 5616 .read = lpfc_debugfs_read, 5617 .release = lpfc_debugfs_release, 5618 }; 5619 5620 #ifdef LPFC_HDWQ_LOCK_STAT 5621 #undef lpfc_debugfs_op_lockstat 5622 static const struct file_operations lpfc_debugfs_op_lockstat = { 5623 .owner = THIS_MODULE, 5624 .open = lpfc_debugfs_lockstat_open, 5625 .llseek = lpfc_debugfs_lseek, 5626 .read = lpfc_debugfs_read, 5627 .write = lpfc_debugfs_lockstat_write, 5628 .release = lpfc_debugfs_release, 5629 }; 5630 #endif 5631 5632 #undef lpfc_debugfs_ras_log 5633 static const struct file_operations lpfc_debugfs_ras_log = { 5634 .owner = THIS_MODULE, 5635 .open = lpfc_debugfs_ras_log_open, 5636 .llseek = lpfc_debugfs_lseek, 5637 .read = lpfc_debugfs_read, 5638 .release = lpfc_debugfs_ras_log_release, 5639 }; 5640 5641 #undef lpfc_debugfs_op_dumpHBASlim 5642 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 5643 .owner = THIS_MODULE, 5644 .open = lpfc_debugfs_dumpHBASlim_open, 5645 .llseek = lpfc_debugfs_lseek, 5646 .read = lpfc_debugfs_read, 5647 .release = lpfc_debugfs_release, 5648 }; 5649 5650 #undef lpfc_debugfs_op_dumpHostSlim 5651 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 5652 .owner = THIS_MODULE, 5653 .open = lpfc_debugfs_dumpHostSlim_open, 5654 .llseek = lpfc_debugfs_lseek, 5655 .read = lpfc_debugfs_read, 5656 .release = lpfc_debugfs_release, 5657 }; 5658 5659 #undef lpfc_debugfs_op_nvmestat 5660 static const struct file_operations lpfc_debugfs_op_nvmestat = { 5661 .owner = THIS_MODULE, 5662 .open = lpfc_debugfs_nvmestat_open, 5663 .llseek = lpfc_debugfs_lseek, 5664 .read = lpfc_debugfs_read, 5665 .write = lpfc_debugfs_nvmestat_write, 5666 .release = lpfc_debugfs_release, 5667 }; 5668 5669 #undef lpfc_debugfs_op_scsistat 5670 static const struct file_operations lpfc_debugfs_op_scsistat = { 5671 .owner = THIS_MODULE, 5672 .open = lpfc_debugfs_scsistat_open, 5673 .llseek = lpfc_debugfs_lseek, 5674 .read = lpfc_debugfs_read, 5675 .write = lpfc_debugfs_scsistat_write, 5676 .release = lpfc_debugfs_release, 5677 }; 5678 5679 #undef lpfc_debugfs_op_ioktime 5680 static const struct file_operations lpfc_debugfs_op_ioktime = { 5681 .owner = THIS_MODULE, 5682 .open = lpfc_debugfs_ioktime_open, 5683 .llseek = lpfc_debugfs_lseek, 5684 .read = lpfc_debugfs_read, 5685 .write = lpfc_debugfs_ioktime_write, 5686 .release = lpfc_debugfs_release, 5687 }; 5688 5689 #undef lpfc_debugfs_op_nvmeio_trc 5690 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 5691 .owner = THIS_MODULE, 5692 .open = lpfc_debugfs_nvmeio_trc_open, 5693 .llseek = lpfc_debugfs_lseek, 5694 .read = lpfc_debugfs_read, 5695 .write = lpfc_debugfs_nvmeio_trc_write, 5696 .release = lpfc_debugfs_release, 5697 }; 5698 5699 #undef lpfc_debugfs_op_hdwqstat 5700 static const struct file_operations lpfc_debugfs_op_hdwqstat = { 5701 .owner = THIS_MODULE, 5702 .open = lpfc_debugfs_hdwqstat_open, 5703 .llseek = lpfc_debugfs_lseek, 5704 .read = lpfc_debugfs_read, 5705 .write = lpfc_debugfs_hdwqstat_write, 5706 .release = lpfc_debugfs_release, 5707 }; 5708 5709 #undef lpfc_debugfs_op_dif_err 5710 static const struct file_operations lpfc_debugfs_op_dif_err = { 5711 .owner = THIS_MODULE, 5712 .open = simple_open, 5713 .llseek = lpfc_debugfs_lseek, 5714 .read = lpfc_debugfs_dif_err_read, 5715 .write = lpfc_debugfs_dif_err_write, 5716 .release = lpfc_debugfs_dif_err_release, 5717 }; 5718 5719 #undef lpfc_debugfs_op_slow_ring_trc 5720 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 5721 .owner = THIS_MODULE, 5722 .open = lpfc_debugfs_slow_ring_trc_open, 5723 .llseek = lpfc_debugfs_lseek, 5724 .read = lpfc_debugfs_read, 5725 .release = lpfc_debugfs_release, 5726 }; 5727 5728 static struct dentry *lpfc_debugfs_root = NULL; 5729 static atomic_t lpfc_debugfs_hba_count; 5730 5731 /* 5732 * File operations for the iDiag debugfs 5733 */ 5734 #undef lpfc_idiag_op_pciCfg 5735 static const struct file_operations lpfc_idiag_op_pciCfg = { 5736 .owner = THIS_MODULE, 5737 .open = lpfc_idiag_open, 5738 .llseek = lpfc_debugfs_lseek, 5739 .read = lpfc_idiag_pcicfg_read, 5740 .write = lpfc_idiag_pcicfg_write, 5741 .release = lpfc_idiag_cmd_release, 5742 }; 5743 5744 #undef lpfc_idiag_op_barAcc 5745 static const struct file_operations lpfc_idiag_op_barAcc = { 5746 .owner = THIS_MODULE, 5747 .open = lpfc_idiag_open, 5748 .llseek = lpfc_debugfs_lseek, 5749 .read = lpfc_idiag_baracc_read, 5750 .write = lpfc_idiag_baracc_write, 5751 .release = lpfc_idiag_cmd_release, 5752 }; 5753 5754 #undef lpfc_idiag_op_queInfo 5755 static const struct file_operations lpfc_idiag_op_queInfo = { 5756 .owner = THIS_MODULE, 5757 .open = lpfc_idiag_open, 5758 .read = lpfc_idiag_queinfo_read, 5759 .release = lpfc_idiag_release, 5760 }; 5761 5762 #undef lpfc_idiag_op_queAcc 5763 static const struct file_operations lpfc_idiag_op_queAcc = { 5764 .owner = THIS_MODULE, 5765 .open = lpfc_idiag_open, 5766 .llseek = lpfc_debugfs_lseek, 5767 .read = lpfc_idiag_queacc_read, 5768 .write = lpfc_idiag_queacc_write, 5769 .release = lpfc_idiag_cmd_release, 5770 }; 5771 5772 #undef lpfc_idiag_op_drbAcc 5773 static const struct file_operations lpfc_idiag_op_drbAcc = { 5774 .owner = THIS_MODULE, 5775 .open = lpfc_idiag_open, 5776 .llseek = lpfc_debugfs_lseek, 5777 .read = lpfc_idiag_drbacc_read, 5778 .write = lpfc_idiag_drbacc_write, 5779 .release = lpfc_idiag_cmd_release, 5780 }; 5781 5782 #undef lpfc_idiag_op_ctlAcc 5783 static const struct file_operations lpfc_idiag_op_ctlAcc = { 5784 .owner = THIS_MODULE, 5785 .open = lpfc_idiag_open, 5786 .llseek = lpfc_debugfs_lseek, 5787 .read = lpfc_idiag_ctlacc_read, 5788 .write = lpfc_idiag_ctlacc_write, 5789 .release = lpfc_idiag_cmd_release, 5790 }; 5791 5792 #undef lpfc_idiag_op_mbxAcc 5793 static const struct file_operations lpfc_idiag_op_mbxAcc = { 5794 .owner = THIS_MODULE, 5795 .open = lpfc_idiag_open, 5796 .llseek = lpfc_debugfs_lseek, 5797 .read = lpfc_idiag_mbxacc_read, 5798 .write = lpfc_idiag_mbxacc_write, 5799 .release = lpfc_idiag_cmd_release, 5800 }; 5801 5802 #undef lpfc_idiag_op_extAcc 5803 static const struct file_operations lpfc_idiag_op_extAcc = { 5804 .owner = THIS_MODULE, 5805 .open = lpfc_idiag_open, 5806 .llseek = lpfc_debugfs_lseek, 5807 .read = lpfc_idiag_extacc_read, 5808 .write = lpfc_idiag_extacc_write, 5809 .release = lpfc_idiag_cmd_release, 5810 }; 5811 #undef lpfc_cgn_buffer_op 5812 static const struct file_operations lpfc_cgn_buffer_op = { 5813 .owner = THIS_MODULE, 5814 .open = lpfc_cgn_buffer_open, 5815 .llseek = lpfc_debugfs_lseek, 5816 .read = lpfc_cgn_buffer_read, 5817 .release = lpfc_cgn_buffer_release, 5818 }; 5819 5820 #undef lpfc_rx_monitor_op 5821 static const struct file_operations lpfc_rx_monitor_op = { 5822 .owner = THIS_MODULE, 5823 .open = lpfc_rx_monitor_open, 5824 .llseek = lpfc_debugfs_lseek, 5825 .read = lpfc_rx_monitor_read, 5826 .release = lpfc_rx_monitor_release, 5827 }; 5828 #endif 5829 5830 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 5831 * @phba: Pointer to HBA context object. 5832 * @dmabuf: Pointer to a DMA buffer descriptor. 5833 * 5834 * Description: 5835 * This routine dump a bsg pass-through non-embedded mailbox command with 5836 * external buffer. 5837 **/ 5838 void 5839 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 5840 enum mbox_type mbox_tp, enum dma_type dma_tp, 5841 enum sta_type sta_tp, 5842 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 5843 { 5844 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5845 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 5846 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5847 int len = 0; 5848 uint32_t do_dump = 0; 5849 uint32_t *pword; 5850 uint32_t i; 5851 5852 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 5853 return; 5854 5855 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5856 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5857 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5858 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5859 5860 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 5861 (*mbx_dump_cnt == 0) || 5862 (*mbx_word_cnt == 0)) 5863 return; 5864 5865 if (*mbx_mbox_cmd != 0x9B) 5866 return; 5867 5868 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 5869 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 5870 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 5871 pr_err("\nRead mbox command (x%x), " 5872 "nemb:0x%x, extbuf_cnt:%d:\n", 5873 sta_tp, nemb_tp, ext_buf); 5874 } 5875 } 5876 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5877 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5878 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5879 pr_err("\nRead mbox buffer (x%x), " 5880 "nemb:0x%x, extbuf_seq:%d:\n", 5881 sta_tp, nemb_tp, ext_buf); 5882 } 5883 } 5884 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5885 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5886 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5887 pr_err("\nWrite mbox command (x%x), " 5888 "nemb:0x%x, extbuf_cnt:%d:\n", 5889 sta_tp, nemb_tp, ext_buf); 5890 } 5891 } 5892 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5893 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5894 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5895 pr_err("\nWrite mbox buffer (x%x), " 5896 "nemb:0x%x, extbuf_seq:%d:\n", 5897 sta_tp, nemb_tp, ext_buf); 5898 } 5899 } 5900 5901 /* dump buffer content */ 5902 if (do_dump) { 5903 pword = (uint32_t *)dmabuf->virt; 5904 for (i = 0; i < *mbx_word_cnt; i++) { 5905 if (!(i % 8)) { 5906 if (i != 0) 5907 pr_err("%s\n", line_buf); 5908 len = 0; 5909 len += scnprintf(line_buf+len, 5910 LPFC_MBX_ACC_LBUF_SZ-len, 5911 "%03d: ", i); 5912 } 5913 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5914 "%08x ", (uint32_t)*pword); 5915 pword++; 5916 } 5917 if ((i - 1) % 8) 5918 pr_err("%s\n", line_buf); 5919 (*mbx_dump_cnt)--; 5920 } 5921 5922 /* Clean out command structure on reaching dump count */ 5923 if (*mbx_dump_cnt == 0) 5924 memset(&idiag, 0, sizeof(idiag)); 5925 return; 5926 #endif 5927 } 5928 5929 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5930 * @phba: Pointer to HBA context object. 5931 * @dmabuf: Pointer to a DMA buffer descriptor. 5932 * 5933 * Description: 5934 * This routine dump a pass-through non-embedded mailbox command from issue 5935 * mailbox command. 5936 **/ 5937 void 5938 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5939 { 5940 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5941 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5942 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5943 int len = 0; 5944 uint32_t *pword; 5945 uint8_t *pbyte; 5946 uint32_t i, j; 5947 5948 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5949 return; 5950 5951 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5952 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5953 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5954 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5955 5956 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5957 (*mbx_dump_cnt == 0) || 5958 (*mbx_word_cnt == 0)) 5959 return; 5960 5961 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5962 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5963 return; 5964 5965 /* dump buffer content */ 5966 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 5967 pr_err("Mailbox command:0x%x dump by word:\n", 5968 pmbox->mbxCommand); 5969 pword = (uint32_t *)pmbox; 5970 for (i = 0; i < *mbx_word_cnt; i++) { 5971 if (!(i % 8)) { 5972 if (i != 0) 5973 pr_err("%s\n", line_buf); 5974 len = 0; 5975 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5976 len += scnprintf(line_buf+len, 5977 LPFC_MBX_ACC_LBUF_SZ-len, 5978 "%03d: ", i); 5979 } 5980 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5981 "%08x ", 5982 ((uint32_t)*pword) & 0xffffffff); 5983 pword++; 5984 } 5985 if ((i - 1) % 8) 5986 pr_err("%s\n", line_buf); 5987 pr_err("\n"); 5988 } 5989 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 5990 pr_err("Mailbox command:0x%x dump by byte:\n", 5991 pmbox->mbxCommand); 5992 pbyte = (uint8_t *)pmbox; 5993 for (i = 0; i < *mbx_word_cnt; i++) { 5994 if (!(i % 8)) { 5995 if (i != 0) 5996 pr_err("%s\n", line_buf); 5997 len = 0; 5998 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5999 len += scnprintf(line_buf+len, 6000 LPFC_MBX_ACC_LBUF_SZ-len, 6001 "%03d: ", i); 6002 } 6003 for (j = 0; j < 4; j++) { 6004 len += scnprintf(line_buf+len, 6005 LPFC_MBX_ACC_LBUF_SZ-len, 6006 "%02x", 6007 ((uint8_t)*pbyte) & 0xff); 6008 pbyte++; 6009 } 6010 len += scnprintf(line_buf+len, 6011 LPFC_MBX_ACC_LBUF_SZ-len, " "); 6012 } 6013 if ((i - 1) % 8) 6014 pr_err("%s\n", line_buf); 6015 pr_err("\n"); 6016 } 6017 (*mbx_dump_cnt)--; 6018 6019 /* Clean out command structure on reaching dump count */ 6020 if (*mbx_dump_cnt == 0) 6021 memset(&idiag, 0, sizeof(idiag)); 6022 return; 6023 #endif 6024 } 6025 6026 /** 6027 * lpfc_debugfs_initialize - Initialize debugfs for a vport 6028 * @vport: The vport pointer to initialize. 6029 * 6030 * Description: 6031 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 6032 * If not already created, this routine will create the lpfc directory, and 6033 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 6034 * also create each file used to access lpfc specific debugfs information. 6035 **/ 6036 inline void 6037 lpfc_debugfs_initialize(struct lpfc_vport *vport) 6038 { 6039 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6040 struct lpfc_hba *phba = vport->phba; 6041 char name[64]; 6042 uint32_t num, i; 6043 bool pport_setup = false; 6044 6045 if (!lpfc_debugfs_enable) 6046 return; 6047 6048 /* Setup lpfc root directory */ 6049 if (!lpfc_debugfs_root) { 6050 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 6051 atomic_set(&lpfc_debugfs_hba_count, 0); 6052 } 6053 if (!lpfc_debugfs_start_time) 6054 lpfc_debugfs_start_time = jiffies; 6055 6056 /* Setup funcX directory for specific HBA PCI function */ 6057 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 6058 if (!phba->hba_debugfs_root) { 6059 pport_setup = true; 6060 phba->hba_debugfs_root = 6061 debugfs_create_dir(name, lpfc_debugfs_root); 6062 atomic_inc(&lpfc_debugfs_hba_count); 6063 atomic_set(&phba->debugfs_vport_count, 0); 6064 6065 /* Multi-XRI pools */ 6066 snprintf(name, sizeof(name), "multixripools"); 6067 phba->debug_multixri_pools = 6068 debugfs_create_file(name, S_IFREG | 0644, 6069 phba->hba_debugfs_root, 6070 phba, 6071 &lpfc_debugfs_op_multixripools); 6072 if (!phba->debug_multixri_pools) { 6073 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6074 "0527 Cannot create debugfs multixripools\n"); 6075 goto debug_failed; 6076 } 6077 6078 /* Congestion Info Buffer */ 6079 scnprintf(name, sizeof(name), "cgn_buffer"); 6080 phba->debug_cgn_buffer = 6081 debugfs_create_file(name, S_IFREG | 0644, 6082 phba->hba_debugfs_root, 6083 phba, &lpfc_cgn_buffer_op); 6084 if (!phba->debug_cgn_buffer) { 6085 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6086 "6527 Cannot create debugfs " 6087 "cgn_buffer\n"); 6088 goto debug_failed; 6089 } 6090 6091 /* RX Monitor */ 6092 scnprintf(name, sizeof(name), "rx_monitor"); 6093 phba->debug_rx_monitor = 6094 debugfs_create_file(name, S_IFREG | 0644, 6095 phba->hba_debugfs_root, 6096 phba, &lpfc_rx_monitor_op); 6097 if (!phba->debug_rx_monitor) { 6098 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6099 "6528 Cannot create debugfs " 6100 "rx_monitor\n"); 6101 goto debug_failed; 6102 } 6103 6104 /* RAS log */ 6105 snprintf(name, sizeof(name), "ras_log"); 6106 phba->debug_ras_log = 6107 debugfs_create_file(name, 0644, 6108 phba->hba_debugfs_root, 6109 phba, &lpfc_debugfs_ras_log); 6110 if (!phba->debug_ras_log) { 6111 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6112 "6148 Cannot create debugfs" 6113 " ras_log\n"); 6114 goto debug_failed; 6115 } 6116 6117 /* Setup hbqinfo */ 6118 snprintf(name, sizeof(name), "hbqinfo"); 6119 phba->debug_hbqinfo = 6120 debugfs_create_file(name, S_IFREG | 0644, 6121 phba->hba_debugfs_root, 6122 phba, &lpfc_debugfs_op_hbqinfo); 6123 6124 #ifdef LPFC_HDWQ_LOCK_STAT 6125 /* Setup lockstat */ 6126 snprintf(name, sizeof(name), "lockstat"); 6127 phba->debug_lockstat = 6128 debugfs_create_file(name, S_IFREG | 0644, 6129 phba->hba_debugfs_root, 6130 phba, &lpfc_debugfs_op_lockstat); 6131 if (!phba->debug_lockstat) { 6132 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6133 "4610 Can't create debugfs lockstat\n"); 6134 goto debug_failed; 6135 } 6136 #endif 6137 6138 /* Setup dumpHBASlim */ 6139 if (phba->sli_rev < LPFC_SLI_REV4) { 6140 snprintf(name, sizeof(name), "dumpHBASlim"); 6141 phba->debug_dumpHBASlim = 6142 debugfs_create_file(name, 6143 S_IFREG|S_IRUGO|S_IWUSR, 6144 phba->hba_debugfs_root, 6145 phba, &lpfc_debugfs_op_dumpHBASlim); 6146 } else 6147 phba->debug_dumpHBASlim = NULL; 6148 6149 /* Setup dumpHostSlim */ 6150 if (phba->sli_rev < LPFC_SLI_REV4) { 6151 snprintf(name, sizeof(name), "dumpHostSlim"); 6152 phba->debug_dumpHostSlim = 6153 debugfs_create_file(name, 6154 S_IFREG|S_IRUGO|S_IWUSR, 6155 phba->hba_debugfs_root, 6156 phba, &lpfc_debugfs_op_dumpHostSlim); 6157 } else 6158 phba->debug_dumpHostSlim = NULL; 6159 6160 /* Setup DIF Error Injections */ 6161 snprintf(name, sizeof(name), "InjErrLBA"); 6162 phba->debug_InjErrLBA = 6163 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6164 phba->hba_debugfs_root, 6165 phba, &lpfc_debugfs_op_dif_err); 6166 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 6167 6168 snprintf(name, sizeof(name), "InjErrNPortID"); 6169 phba->debug_InjErrNPortID = 6170 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6171 phba->hba_debugfs_root, 6172 phba, &lpfc_debugfs_op_dif_err); 6173 6174 snprintf(name, sizeof(name), "InjErrWWPN"); 6175 phba->debug_InjErrWWPN = 6176 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6177 phba->hba_debugfs_root, 6178 phba, &lpfc_debugfs_op_dif_err); 6179 6180 snprintf(name, sizeof(name), "writeGuardInjErr"); 6181 phba->debug_writeGuard = 6182 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6183 phba->hba_debugfs_root, 6184 phba, &lpfc_debugfs_op_dif_err); 6185 6186 snprintf(name, sizeof(name), "writeAppInjErr"); 6187 phba->debug_writeApp = 6188 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6189 phba->hba_debugfs_root, 6190 phba, &lpfc_debugfs_op_dif_err); 6191 6192 snprintf(name, sizeof(name), "writeRefInjErr"); 6193 phba->debug_writeRef = 6194 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6195 phba->hba_debugfs_root, 6196 phba, &lpfc_debugfs_op_dif_err); 6197 6198 snprintf(name, sizeof(name), "readGuardInjErr"); 6199 phba->debug_readGuard = 6200 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6201 phba->hba_debugfs_root, 6202 phba, &lpfc_debugfs_op_dif_err); 6203 6204 snprintf(name, sizeof(name), "readAppInjErr"); 6205 phba->debug_readApp = 6206 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6207 phba->hba_debugfs_root, 6208 phba, &lpfc_debugfs_op_dif_err); 6209 6210 snprintf(name, sizeof(name), "readRefInjErr"); 6211 phba->debug_readRef = 6212 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6213 phba->hba_debugfs_root, 6214 phba, &lpfc_debugfs_op_dif_err); 6215 6216 /* Setup slow ring trace */ 6217 if (lpfc_debugfs_max_slow_ring_trc) { 6218 num = lpfc_debugfs_max_slow_ring_trc - 1; 6219 if (num & lpfc_debugfs_max_slow_ring_trc) { 6220 /* Change to be a power of 2 */ 6221 num = lpfc_debugfs_max_slow_ring_trc; 6222 i = 0; 6223 while (num > 1) { 6224 num = num >> 1; 6225 i++; 6226 } 6227 lpfc_debugfs_max_slow_ring_trc = (1 << i); 6228 pr_err("lpfc_debugfs_max_disc_trc changed to " 6229 "%d\n", lpfc_debugfs_max_disc_trc); 6230 } 6231 } 6232 6233 snprintf(name, sizeof(name), "slow_ring_trace"); 6234 phba->debug_slow_ring_trc = 6235 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6236 phba->hba_debugfs_root, 6237 phba, &lpfc_debugfs_op_slow_ring_trc); 6238 if (!phba->slow_ring_trc) { 6239 phba->slow_ring_trc = kcalloc( 6240 lpfc_debugfs_max_slow_ring_trc, 6241 sizeof(struct lpfc_debugfs_trc), 6242 GFP_KERNEL); 6243 if (!phba->slow_ring_trc) { 6244 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6245 "0416 Cannot create debugfs " 6246 "slow_ring buffer\n"); 6247 goto debug_failed; 6248 } 6249 atomic_set(&phba->slow_ring_trc_cnt, 0); 6250 } 6251 6252 snprintf(name, sizeof(name), "nvmeio_trc"); 6253 phba->debug_nvmeio_trc = 6254 debugfs_create_file(name, 0644, 6255 phba->hba_debugfs_root, 6256 phba, &lpfc_debugfs_op_nvmeio_trc); 6257 6258 atomic_set(&phba->nvmeio_trc_cnt, 0); 6259 if (lpfc_debugfs_max_nvmeio_trc) { 6260 num = lpfc_debugfs_max_nvmeio_trc - 1; 6261 if (num & lpfc_debugfs_max_disc_trc) { 6262 /* Change to be a power of 2 */ 6263 num = lpfc_debugfs_max_nvmeio_trc; 6264 i = 0; 6265 while (num > 1) { 6266 num = num >> 1; 6267 i++; 6268 } 6269 lpfc_debugfs_max_nvmeio_trc = (1 << i); 6270 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6271 "0575 lpfc_debugfs_max_nvmeio_trc " 6272 "changed to %d\n", 6273 lpfc_debugfs_max_nvmeio_trc); 6274 } 6275 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 6276 6277 /* Allocate trace buffer and initialize */ 6278 phba->nvmeio_trc = kzalloc( 6279 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 6280 phba->nvmeio_trc_size), GFP_KERNEL); 6281 6282 if (!phba->nvmeio_trc) { 6283 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6284 "0576 Cannot create debugfs " 6285 "nvmeio_trc buffer\n"); 6286 goto nvmeio_off; 6287 } 6288 phba->nvmeio_trc_on = 1; 6289 phba->nvmeio_trc_output_idx = 0; 6290 phba->nvmeio_trc = NULL; 6291 } else { 6292 nvmeio_off: 6293 phba->nvmeio_trc_size = 0; 6294 phba->nvmeio_trc_on = 0; 6295 phba->nvmeio_trc_output_idx = 0; 6296 phba->nvmeio_trc = NULL; 6297 } 6298 } 6299 6300 snprintf(name, sizeof(name), "vport%d", vport->vpi); 6301 if (!vport->vport_debugfs_root) { 6302 vport->vport_debugfs_root = 6303 debugfs_create_dir(name, phba->hba_debugfs_root); 6304 atomic_inc(&phba->debugfs_vport_count); 6305 } 6306 6307 if (lpfc_debugfs_max_disc_trc) { 6308 num = lpfc_debugfs_max_disc_trc - 1; 6309 if (num & lpfc_debugfs_max_disc_trc) { 6310 /* Change to be a power of 2 */ 6311 num = lpfc_debugfs_max_disc_trc; 6312 i = 0; 6313 while (num > 1) { 6314 num = num >> 1; 6315 i++; 6316 } 6317 lpfc_debugfs_max_disc_trc = (1 << i); 6318 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n", 6319 lpfc_debugfs_max_disc_trc); 6320 } 6321 } 6322 6323 vport->disc_trc = kzalloc( 6324 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 6325 GFP_KERNEL); 6326 6327 if (!vport->disc_trc) { 6328 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6329 "0418 Cannot create debugfs disc trace " 6330 "buffer\n"); 6331 goto debug_failed; 6332 } 6333 atomic_set(&vport->disc_trc_cnt, 0); 6334 6335 snprintf(name, sizeof(name), "discovery_trace"); 6336 vport->debug_disc_trc = 6337 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6338 vport->vport_debugfs_root, 6339 vport, &lpfc_debugfs_op_disc_trc); 6340 snprintf(name, sizeof(name), "nodelist"); 6341 vport->debug_nodelist = 6342 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6343 vport->vport_debugfs_root, 6344 vport, &lpfc_debugfs_op_nodelist); 6345 6346 snprintf(name, sizeof(name), "nvmestat"); 6347 vport->debug_nvmestat = 6348 debugfs_create_file(name, 0644, 6349 vport->vport_debugfs_root, 6350 vport, &lpfc_debugfs_op_nvmestat); 6351 6352 snprintf(name, sizeof(name), "scsistat"); 6353 vport->debug_scsistat = 6354 debugfs_create_file(name, 0644, 6355 vport->vport_debugfs_root, 6356 vport, &lpfc_debugfs_op_scsistat); 6357 if (!vport->debug_scsistat) { 6358 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6359 "4611 Cannot create debugfs scsistat\n"); 6360 goto debug_failed; 6361 } 6362 6363 snprintf(name, sizeof(name), "ioktime"); 6364 vport->debug_ioktime = 6365 debugfs_create_file(name, 0644, 6366 vport->vport_debugfs_root, 6367 vport, &lpfc_debugfs_op_ioktime); 6368 if (!vport->debug_ioktime) { 6369 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6370 "0815 Cannot create debugfs ioktime\n"); 6371 goto debug_failed; 6372 } 6373 6374 snprintf(name, sizeof(name), "hdwqstat"); 6375 vport->debug_hdwqstat = 6376 debugfs_create_file(name, 0644, 6377 vport->vport_debugfs_root, 6378 vport, &lpfc_debugfs_op_hdwqstat); 6379 6380 /* 6381 * The following section is for additional directories/files for the 6382 * physical port. 6383 */ 6384 6385 if (!pport_setup) 6386 goto debug_failed; 6387 6388 /* 6389 * iDiag debugfs root entry points for SLI4 device only 6390 */ 6391 if (phba->sli_rev < LPFC_SLI_REV4) 6392 goto debug_failed; 6393 6394 snprintf(name, sizeof(name), "iDiag"); 6395 if (!phba->idiag_root) { 6396 phba->idiag_root = 6397 debugfs_create_dir(name, phba->hba_debugfs_root); 6398 /* Initialize iDiag data structure */ 6399 memset(&idiag, 0, sizeof(idiag)); 6400 } 6401 6402 /* iDiag read PCI config space */ 6403 snprintf(name, sizeof(name), "pciCfg"); 6404 if (!phba->idiag_pci_cfg) { 6405 phba->idiag_pci_cfg = 6406 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6407 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 6408 idiag.offset.last_rd = 0; 6409 } 6410 6411 /* iDiag PCI BAR access */ 6412 snprintf(name, sizeof(name), "barAcc"); 6413 if (!phba->idiag_bar_acc) { 6414 phba->idiag_bar_acc = 6415 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6416 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 6417 idiag.offset.last_rd = 0; 6418 } 6419 6420 /* iDiag get PCI function queue information */ 6421 snprintf(name, sizeof(name), "queInfo"); 6422 if (!phba->idiag_que_info) { 6423 phba->idiag_que_info = 6424 debugfs_create_file(name, S_IFREG|S_IRUGO, 6425 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 6426 } 6427 6428 /* iDiag access PCI function queue */ 6429 snprintf(name, sizeof(name), "queAcc"); 6430 if (!phba->idiag_que_acc) { 6431 phba->idiag_que_acc = 6432 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6433 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 6434 } 6435 6436 /* iDiag access PCI function doorbell registers */ 6437 snprintf(name, sizeof(name), "drbAcc"); 6438 if (!phba->idiag_drb_acc) { 6439 phba->idiag_drb_acc = 6440 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6441 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 6442 } 6443 6444 /* iDiag access PCI function control registers */ 6445 snprintf(name, sizeof(name), "ctlAcc"); 6446 if (!phba->idiag_ctl_acc) { 6447 phba->idiag_ctl_acc = 6448 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6449 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 6450 } 6451 6452 /* iDiag access mbox commands */ 6453 snprintf(name, sizeof(name), "mbxAcc"); 6454 if (!phba->idiag_mbx_acc) { 6455 phba->idiag_mbx_acc = 6456 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6457 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 6458 } 6459 6460 /* iDiag extents access commands */ 6461 if (phba->sli4_hba.extents_in_use) { 6462 snprintf(name, sizeof(name), "extAcc"); 6463 if (!phba->idiag_ext_acc) { 6464 phba->idiag_ext_acc = 6465 debugfs_create_file(name, 6466 S_IFREG|S_IRUGO|S_IWUSR, 6467 phba->idiag_root, phba, 6468 &lpfc_idiag_op_extAcc); 6469 } 6470 } 6471 6472 debug_failed: 6473 return; 6474 #endif 6475 } 6476 6477 /** 6478 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 6479 * @vport: The vport pointer to remove from debugfs. 6480 * 6481 * Description: 6482 * When Debugfs is configured this routine removes debugfs file system elements 6483 * that are specific to this vport. It also checks to see if there are any 6484 * users left for the debugfs directories associated with the HBA and driver. If 6485 * this is the last user of the HBA directory or driver directory then it will 6486 * remove those from the debugfs infrastructure as well. 6487 **/ 6488 inline void 6489 lpfc_debugfs_terminate(struct lpfc_vport *vport) 6490 { 6491 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6492 struct lpfc_hba *phba = vport->phba; 6493 6494 kfree(vport->disc_trc); 6495 vport->disc_trc = NULL; 6496 6497 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 6498 vport->debug_disc_trc = NULL; 6499 6500 debugfs_remove(vport->debug_nodelist); /* nodelist */ 6501 vport->debug_nodelist = NULL; 6502 6503 debugfs_remove(vport->debug_nvmestat); /* nvmestat */ 6504 vport->debug_nvmestat = NULL; 6505 6506 debugfs_remove(vport->debug_scsistat); /* scsistat */ 6507 vport->debug_scsistat = NULL; 6508 6509 debugfs_remove(vport->debug_ioktime); /* ioktime */ 6510 vport->debug_ioktime = NULL; 6511 6512 debugfs_remove(vport->debug_hdwqstat); /* hdwqstat */ 6513 vport->debug_hdwqstat = NULL; 6514 6515 if (vport->vport_debugfs_root) { 6516 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 6517 vport->vport_debugfs_root = NULL; 6518 atomic_dec(&phba->debugfs_vport_count); 6519 } 6520 6521 if (atomic_read(&phba->debugfs_vport_count) == 0) { 6522 6523 debugfs_remove(phba->debug_multixri_pools); /* multixripools*/ 6524 phba->debug_multixri_pools = NULL; 6525 6526 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 6527 phba->debug_hbqinfo = NULL; 6528 6529 debugfs_remove(phba->debug_cgn_buffer); 6530 phba->debug_cgn_buffer = NULL; 6531 6532 debugfs_remove(phba->debug_rx_monitor); 6533 phba->debug_rx_monitor = NULL; 6534 6535 debugfs_remove(phba->debug_ras_log); 6536 phba->debug_ras_log = NULL; 6537 6538 #ifdef LPFC_HDWQ_LOCK_STAT 6539 debugfs_remove(phba->debug_lockstat); /* lockstat */ 6540 phba->debug_lockstat = NULL; 6541 #endif 6542 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 6543 phba->debug_dumpHBASlim = NULL; 6544 6545 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 6546 phba->debug_dumpHostSlim = NULL; 6547 6548 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 6549 phba->debug_InjErrLBA = NULL; 6550 6551 debugfs_remove(phba->debug_InjErrNPortID); 6552 phba->debug_InjErrNPortID = NULL; 6553 6554 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 6555 phba->debug_InjErrWWPN = NULL; 6556 6557 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 6558 phba->debug_writeGuard = NULL; 6559 6560 debugfs_remove(phba->debug_writeApp); /* writeApp */ 6561 phba->debug_writeApp = NULL; 6562 6563 debugfs_remove(phba->debug_writeRef); /* writeRef */ 6564 phba->debug_writeRef = NULL; 6565 6566 debugfs_remove(phba->debug_readGuard); /* readGuard */ 6567 phba->debug_readGuard = NULL; 6568 6569 debugfs_remove(phba->debug_readApp); /* readApp */ 6570 phba->debug_readApp = NULL; 6571 6572 debugfs_remove(phba->debug_readRef); /* readRef */ 6573 phba->debug_readRef = NULL; 6574 6575 kfree(phba->slow_ring_trc); 6576 phba->slow_ring_trc = NULL; 6577 6578 /* slow_ring_trace */ 6579 debugfs_remove(phba->debug_slow_ring_trc); 6580 phba->debug_slow_ring_trc = NULL; 6581 6582 debugfs_remove(phba->debug_nvmeio_trc); 6583 phba->debug_nvmeio_trc = NULL; 6584 6585 kfree(phba->nvmeio_trc); 6586 phba->nvmeio_trc = NULL; 6587 6588 /* 6589 * iDiag release 6590 */ 6591 if (phba->sli_rev == LPFC_SLI_REV4) { 6592 /* iDiag extAcc */ 6593 debugfs_remove(phba->idiag_ext_acc); 6594 phba->idiag_ext_acc = NULL; 6595 6596 /* iDiag mbxAcc */ 6597 debugfs_remove(phba->idiag_mbx_acc); 6598 phba->idiag_mbx_acc = NULL; 6599 6600 /* iDiag ctlAcc */ 6601 debugfs_remove(phba->idiag_ctl_acc); 6602 phba->idiag_ctl_acc = NULL; 6603 6604 /* iDiag drbAcc */ 6605 debugfs_remove(phba->idiag_drb_acc); 6606 phba->idiag_drb_acc = NULL; 6607 6608 /* iDiag queAcc */ 6609 debugfs_remove(phba->idiag_que_acc); 6610 phba->idiag_que_acc = NULL; 6611 6612 /* iDiag queInfo */ 6613 debugfs_remove(phba->idiag_que_info); 6614 phba->idiag_que_info = NULL; 6615 6616 /* iDiag barAcc */ 6617 debugfs_remove(phba->idiag_bar_acc); 6618 phba->idiag_bar_acc = NULL; 6619 6620 /* iDiag pciCfg */ 6621 debugfs_remove(phba->idiag_pci_cfg); 6622 phba->idiag_pci_cfg = NULL; 6623 6624 /* Finally remove the iDiag debugfs root */ 6625 debugfs_remove(phba->idiag_root); 6626 phba->idiag_root = NULL; 6627 } 6628 6629 if (phba->hba_debugfs_root) { 6630 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 6631 phba->hba_debugfs_root = NULL; 6632 atomic_dec(&lpfc_debugfs_hba_count); 6633 } 6634 6635 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 6636 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 6637 lpfc_debugfs_root = NULL; 6638 } 6639 } 6640 #endif 6641 return; 6642 } 6643 6644 /* 6645 * Driver debug utility routines outside of debugfs. The debug utility 6646 * routines implemented here is intended to be used in the instrumented 6647 * debug driver for debugging host or port issues. 6648 */ 6649 6650 /** 6651 * lpfc_debug_dump_all_queues - dump all the queues with a hba 6652 * @phba: Pointer to HBA context object. 6653 * 6654 * This function dumps entries of all the queues asociated with the @phba. 6655 **/ 6656 void 6657 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 6658 { 6659 int idx; 6660 6661 /* 6662 * Dump Work Queues (WQs) 6663 */ 6664 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 6665 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 6666 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 6667 6668 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6669 lpfc_debug_dump_wq(phba, DUMP_IO, idx); 6670 6671 lpfc_debug_dump_hdr_rq(phba); 6672 lpfc_debug_dump_dat_rq(phba); 6673 /* 6674 * Dump Complete Queues (CQs) 6675 */ 6676 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 6677 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 6678 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 6679 6680 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6681 lpfc_debug_dump_cq(phba, DUMP_IO, idx); 6682 6683 /* 6684 * Dump Event Queues (EQs) 6685 */ 6686 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6687 lpfc_debug_dump_hba_eq(phba, idx); 6688 } 6689