1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2021 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 2161 memset(mybuf, 0, sizeof(mybuf)); 2162 2163 if (copy_from_user(mybuf, buf, nbytes)) 2164 return -EFAULT; 2165 pbuf = &mybuf[0]; 2166 2167 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2168 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2169 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2170 qp = &phba->sli4_hba.hdwq[i]; 2171 qp->lock_conflict.alloc_xri_get = 0; 2172 qp->lock_conflict.alloc_xri_put = 0; 2173 qp->lock_conflict.free_xri = 0; 2174 qp->lock_conflict.wq_access = 0; 2175 qp->lock_conflict.alloc_pvt_pool = 0; 2176 qp->lock_conflict.mv_from_pvt_pool = 0; 2177 qp->lock_conflict.mv_to_pub_pool = 0; 2178 qp->lock_conflict.mv_to_pvt_pool = 0; 2179 qp->lock_conflict.free_pvt_pool = 0; 2180 qp->lock_conflict.free_pub_pool = 0; 2181 qp->lock_conflict.wq_access = 0; 2182 } 2183 } 2184 return nbytes; 2185 } 2186 #endif 2187 2188 static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba, 2189 char *buffer, int size) 2190 { 2191 int copied = 0; 2192 struct lpfc_dmabuf *dmabuf, *next; 2193 2194 memset(buffer, 0, size); 2195 2196 spin_lock_irq(&phba->hbalock); 2197 if (phba->ras_fwlog.state != ACTIVE) { 2198 spin_unlock_irq(&phba->hbalock); 2199 return -EINVAL; 2200 } 2201 spin_unlock_irq(&phba->hbalock); 2202 2203 list_for_each_entry_safe(dmabuf, next, 2204 &phba->ras_fwlog.fwlog_buff_list, list) { 2205 /* Check if copying will go over size and a '\0' char */ 2206 if ((copied + LPFC_RAS_MAX_ENTRY_SIZE) >= (size - 1)) { 2207 memcpy(buffer + copied, dmabuf->virt, 2208 size - copied - 1); 2209 copied += size - copied - 1; 2210 break; 2211 } 2212 memcpy(buffer + copied, dmabuf->virt, LPFC_RAS_MAX_ENTRY_SIZE); 2213 copied += LPFC_RAS_MAX_ENTRY_SIZE; 2214 } 2215 return copied; 2216 } 2217 2218 static int 2219 lpfc_debugfs_ras_log_release(struct inode *inode, struct file *file) 2220 { 2221 struct lpfc_debug *debug = file->private_data; 2222 2223 vfree(debug->buffer); 2224 kfree(debug); 2225 2226 return 0; 2227 } 2228 2229 /** 2230 * lpfc_debugfs_ras_log_open - Open the RAS log debugfs buffer 2231 * @inode: The inode pointer that contains a vport pointer. 2232 * @file: The file pointer to attach the log output. 2233 * 2234 * Description: 2235 * This routine is the entry point for the debugfs open file operation. It gets 2236 * the vport from the i_private field in @inode, allocates the necessary buffer 2237 * for the log, fills the buffer from the in-memory log for this vport, and then 2238 * returns a pointer to that log in the private_data field in @file. 2239 * 2240 * Returns: 2241 * This function returns zero if successful. On error it will return a negative 2242 * error value. 2243 **/ 2244 static int 2245 lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file) 2246 { 2247 struct lpfc_hba *phba = inode->i_private; 2248 struct lpfc_debug *debug; 2249 int size; 2250 int rc = -ENOMEM; 2251 2252 spin_lock_irq(&phba->hbalock); 2253 if (phba->ras_fwlog.state != ACTIVE) { 2254 spin_unlock_irq(&phba->hbalock); 2255 rc = -EINVAL; 2256 goto out; 2257 } 2258 spin_unlock_irq(&phba->hbalock); 2259 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2260 if (!debug) 2261 goto out; 2262 2263 size = LPFC_RAS_MIN_BUFF_POST_SIZE * phba->cfg_ras_fwlog_buffsize; 2264 debug->buffer = vmalloc(size); 2265 if (!debug->buffer) 2266 goto free_debug; 2267 2268 debug->len = lpfc_debugfs_ras_log_data(phba, debug->buffer, size); 2269 if (debug->len < 0) { 2270 rc = -EINVAL; 2271 goto free_buffer; 2272 } 2273 file->private_data = debug; 2274 2275 return 0; 2276 2277 free_buffer: 2278 vfree(debug->buffer); 2279 free_debug: 2280 kfree(debug); 2281 out: 2282 return rc; 2283 } 2284 2285 /** 2286 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 2287 * @inode: The inode pointer that contains a vport pointer. 2288 * @file: The file pointer to attach the log output. 2289 * 2290 * Description: 2291 * This routine is the entry point for the debugfs open file operation. It gets 2292 * the vport from the i_private field in @inode, allocates the necessary buffer 2293 * for the log, fills the buffer from the in-memory log for this vport, and then 2294 * returns a pointer to that log in the private_data field in @file. 2295 * 2296 * Returns: 2297 * This function returns zero if successful. On error it will return a negative 2298 * error value. 2299 **/ 2300 static int 2301 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 2302 { 2303 struct lpfc_hba *phba = inode->i_private; 2304 struct lpfc_debug *debug; 2305 int rc = -ENOMEM; 2306 2307 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2308 if (!debug) 2309 goto out; 2310 2311 /* Round to page boundary */ 2312 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 2313 if (!debug->buffer) { 2314 kfree(debug); 2315 goto out; 2316 } 2317 2318 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 2319 LPFC_DUMPHBASLIM_SIZE); 2320 file->private_data = debug; 2321 2322 rc = 0; 2323 out: 2324 return rc; 2325 } 2326 2327 /** 2328 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 2329 * @inode: The inode pointer that contains a vport pointer. 2330 * @file: The file pointer to attach the log output. 2331 * 2332 * Description: 2333 * This routine is the entry point for the debugfs open file operation. It gets 2334 * the vport from the i_private field in @inode, allocates the necessary buffer 2335 * for the log, fills the buffer from the in-memory log for this vport, and then 2336 * returns a pointer to that log in the private_data field in @file. 2337 * 2338 * Returns: 2339 * This function returns zero if successful. On error it will return a negative 2340 * error value. 2341 **/ 2342 static int 2343 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 2344 { 2345 struct lpfc_hba *phba = inode->i_private; 2346 struct lpfc_debug *debug; 2347 int rc = -ENOMEM; 2348 2349 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2350 if (!debug) 2351 goto out; 2352 2353 /* Round to page boundary */ 2354 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 2355 if (!debug->buffer) { 2356 kfree(debug); 2357 goto out; 2358 } 2359 2360 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 2361 LPFC_DUMPHOSTSLIM_SIZE); 2362 file->private_data = debug; 2363 2364 rc = 0; 2365 out: 2366 return rc; 2367 } 2368 2369 static ssize_t 2370 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 2371 size_t nbytes, loff_t *ppos) 2372 { 2373 struct dentry *dent = file->f_path.dentry; 2374 struct lpfc_hba *phba = file->private_data; 2375 char cbuf[32]; 2376 uint64_t tmp = 0; 2377 int cnt = 0; 2378 2379 if (dent == phba->debug_writeGuard) 2380 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); 2381 else if (dent == phba->debug_writeApp) 2382 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); 2383 else if (dent == phba->debug_writeRef) 2384 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); 2385 else if (dent == phba->debug_readGuard) 2386 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); 2387 else if (dent == phba->debug_readApp) 2388 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); 2389 else if (dent == phba->debug_readRef) 2390 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); 2391 else if (dent == phba->debug_InjErrNPortID) 2392 cnt = scnprintf(cbuf, 32, "0x%06x\n", 2393 phba->lpfc_injerr_nportid); 2394 else if (dent == phba->debug_InjErrWWPN) { 2395 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); 2396 tmp = cpu_to_be64(tmp); 2397 cnt = scnprintf(cbuf, 32, "0x%016llx\n", tmp); 2398 } else if (dent == phba->debug_InjErrLBA) { 2399 if (phba->lpfc_injerr_lba == (sector_t)(-1)) 2400 cnt = scnprintf(cbuf, 32, "off\n"); 2401 else 2402 cnt = scnprintf(cbuf, 32, "0x%llx\n", 2403 (uint64_t) phba->lpfc_injerr_lba); 2404 } else 2405 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2406 "0547 Unknown debugfs error injection entry\n"); 2407 2408 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 2409 } 2410 2411 static ssize_t 2412 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 2413 size_t nbytes, loff_t *ppos) 2414 { 2415 struct dentry *dent = file->f_path.dentry; 2416 struct lpfc_hba *phba = file->private_data; 2417 char dstbuf[33]; 2418 uint64_t tmp = 0; 2419 int size; 2420 2421 memset(dstbuf, 0, 33); 2422 size = (nbytes < 32) ? nbytes : 32; 2423 if (copy_from_user(dstbuf, buf, size)) 2424 return -EFAULT; 2425 2426 if (dent == phba->debug_InjErrLBA) { 2427 if ((dstbuf[0] == 'o') && (dstbuf[1] == 'f') && 2428 (dstbuf[2] == 'f')) 2429 tmp = (uint64_t)(-1); 2430 } 2431 2432 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) 2433 return -EINVAL; 2434 2435 if (dent == phba->debug_writeGuard) 2436 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 2437 else if (dent == phba->debug_writeApp) 2438 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 2439 else if (dent == phba->debug_writeRef) 2440 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 2441 else if (dent == phba->debug_readGuard) 2442 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 2443 else if (dent == phba->debug_readApp) 2444 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 2445 else if (dent == phba->debug_readRef) 2446 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 2447 else if (dent == phba->debug_InjErrLBA) 2448 phba->lpfc_injerr_lba = (sector_t)tmp; 2449 else if (dent == phba->debug_InjErrNPortID) 2450 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 2451 else if (dent == phba->debug_InjErrWWPN) { 2452 tmp = cpu_to_be64(tmp); 2453 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); 2454 } else 2455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2456 "0548 Unknown debugfs error injection entry\n"); 2457 2458 return nbytes; 2459 } 2460 2461 static int 2462 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 2463 { 2464 return 0; 2465 } 2466 2467 /** 2468 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 2469 * @inode: The inode pointer that contains a vport pointer. 2470 * @file: The file pointer to attach the log output. 2471 * 2472 * Description: 2473 * This routine is the entry point for the debugfs open file operation. It gets 2474 * the vport from the i_private field in @inode, allocates the necessary buffer 2475 * for the log, fills the buffer from the in-memory log for this vport, and then 2476 * returns a pointer to that log in the private_data field in @file. 2477 * 2478 * Returns: 2479 * This function returns zero if successful. On error it will return a negative 2480 * error value. 2481 **/ 2482 static int 2483 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 2484 { 2485 struct lpfc_vport *vport = inode->i_private; 2486 struct lpfc_debug *debug; 2487 int rc = -ENOMEM; 2488 2489 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2490 if (!debug) 2491 goto out; 2492 2493 /* Round to page boundary */ 2494 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 2495 if (!debug->buffer) { 2496 kfree(debug); 2497 goto out; 2498 } 2499 2500 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 2501 LPFC_NODELIST_SIZE); 2502 file->private_data = debug; 2503 2504 rc = 0; 2505 out: 2506 return rc; 2507 } 2508 2509 /** 2510 * lpfc_debugfs_lseek - Seek through a debugfs file 2511 * @file: The file pointer to seek through. 2512 * @off: The offset to seek to or the amount to seek by. 2513 * @whence: Indicates how to seek. 2514 * 2515 * Description: 2516 * This routine is the entry point for the debugfs lseek file operation. The 2517 * @whence parameter indicates whether @off is the offset to directly seek to, 2518 * or if it is a value to seek forward or reverse by. This function figures out 2519 * what the new offset of the debugfs file will be and assigns that value to the 2520 * f_pos field of @file. 2521 * 2522 * Returns: 2523 * This function returns the new offset if successful and returns a negative 2524 * error if unable to process the seek. 2525 **/ 2526 static loff_t 2527 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 2528 { 2529 struct lpfc_debug *debug = file->private_data; 2530 return fixed_size_llseek(file, off, whence, debug->len); 2531 } 2532 2533 /** 2534 * lpfc_debugfs_read - Read a debugfs file 2535 * @file: The file pointer to read from. 2536 * @buf: The buffer to copy the data to. 2537 * @nbytes: The number of bytes to read. 2538 * @ppos: The position in the file to start reading from. 2539 * 2540 * Description: 2541 * This routine reads data from from the buffer indicated in the private_data 2542 * field of @file. It will start reading at @ppos and copy up to @nbytes of 2543 * data to @buf. 2544 * 2545 * Returns: 2546 * This function returns the amount of data that was read (this could be less 2547 * than @nbytes if the end of the file was reached) or a negative error value. 2548 **/ 2549 static ssize_t 2550 lpfc_debugfs_read(struct file *file, char __user *buf, 2551 size_t nbytes, loff_t *ppos) 2552 { 2553 struct lpfc_debug *debug = file->private_data; 2554 2555 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 2556 debug->len); 2557 } 2558 2559 /** 2560 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 2561 * @inode: The inode pointer that contains a vport pointer. (unused) 2562 * @file: The file pointer that contains the buffer to release. 2563 * 2564 * Description: 2565 * This routine frees the buffer that was allocated when the debugfs file was 2566 * opened. 2567 * 2568 * Returns: 2569 * This function returns zero. 2570 **/ 2571 static int 2572 lpfc_debugfs_release(struct inode *inode, struct file *file) 2573 { 2574 struct lpfc_debug *debug = file->private_data; 2575 2576 kfree(debug->buffer); 2577 kfree(debug); 2578 2579 return 0; 2580 } 2581 2582 /** 2583 * lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics 2584 * @file: The file pointer to read from. 2585 * @buf: The buffer to copy the user data from. 2586 * @nbytes: The number of bytes to get. 2587 * @ppos: The position in the file to start reading from. 2588 * 2589 * Description: 2590 * This routine clears multi-XRI pools statistics when buf contains "clear". 2591 * 2592 * Return Value: 2593 * It returns the @nbytges passing in from debugfs user space when successful. 2594 * In case of error conditions, it returns proper error code back to the user 2595 * space. 2596 **/ 2597 static ssize_t 2598 lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf, 2599 size_t nbytes, loff_t *ppos) 2600 { 2601 struct lpfc_debug *debug = file->private_data; 2602 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2603 char mybuf[64]; 2604 char *pbuf; 2605 u32 i; 2606 u32 hwq_count; 2607 struct lpfc_sli4_hdw_queue *qp; 2608 struct lpfc_multixri_pool *multixri_pool; 2609 2610 if (nbytes > 64) 2611 nbytes = 64; 2612 2613 memset(mybuf, 0, sizeof(mybuf)); 2614 2615 if (copy_from_user(mybuf, buf, nbytes)) 2616 return -EFAULT; 2617 pbuf = &mybuf[0]; 2618 2619 if ((strncmp(pbuf, "clear", strlen("clear"))) == 0) { 2620 hwq_count = phba->cfg_hdw_queue; 2621 for (i = 0; i < hwq_count; i++) { 2622 qp = &phba->sli4_hba.hdwq[i]; 2623 multixri_pool = qp->p_multixri_pool; 2624 if (!multixri_pool) 2625 continue; 2626 2627 qp->empty_io_bufs = 0; 2628 multixri_pool->pbl_empty_count = 0; 2629 #ifdef LPFC_MXP_STAT 2630 multixri_pool->above_limit_count = 0; 2631 multixri_pool->below_limit_count = 0; 2632 multixri_pool->stat_max_hwm = 0; 2633 multixri_pool->local_pbl_hit_count = 0; 2634 multixri_pool->other_pbl_hit_count = 0; 2635 2636 multixri_pool->stat_pbl_count = 0; 2637 multixri_pool->stat_pvt_count = 0; 2638 multixri_pool->stat_busy_count = 0; 2639 multixri_pool->stat_snapshot_taken = 0; 2640 #endif 2641 } 2642 return strlen(pbuf); 2643 } 2644 2645 return -EINVAL; 2646 } 2647 2648 static int 2649 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 2650 { 2651 struct lpfc_vport *vport = inode->i_private; 2652 struct lpfc_debug *debug; 2653 int rc = -ENOMEM; 2654 2655 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2656 if (!debug) 2657 goto out; 2658 2659 /* Round to page boundary */ 2660 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 2661 if (!debug->buffer) { 2662 kfree(debug); 2663 goto out; 2664 } 2665 2666 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 2667 LPFC_NVMESTAT_SIZE); 2668 2669 debug->i_private = inode->i_private; 2670 file->private_data = debug; 2671 2672 rc = 0; 2673 out: 2674 return rc; 2675 } 2676 2677 static ssize_t 2678 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 2679 size_t nbytes, loff_t *ppos) 2680 { 2681 struct lpfc_debug *debug = file->private_data; 2682 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2683 struct lpfc_hba *phba = vport->phba; 2684 struct lpfc_nvmet_tgtport *tgtp; 2685 char mybuf[64]; 2686 char *pbuf; 2687 2688 if (!phba->targetport) 2689 return -ENXIO; 2690 2691 if (nbytes > 64) 2692 nbytes = 64; 2693 2694 memset(mybuf, 0, sizeof(mybuf)); 2695 2696 if (copy_from_user(mybuf, buf, nbytes)) 2697 return -EFAULT; 2698 pbuf = &mybuf[0]; 2699 2700 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2701 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2702 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2703 atomic_set(&tgtp->rcv_ls_req_in, 0); 2704 atomic_set(&tgtp->rcv_ls_req_out, 0); 2705 atomic_set(&tgtp->rcv_ls_req_drop, 0); 2706 atomic_set(&tgtp->xmt_ls_abort, 0); 2707 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 2708 atomic_set(&tgtp->xmt_ls_rsp, 0); 2709 atomic_set(&tgtp->xmt_ls_drop, 0); 2710 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 2711 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 2712 2713 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 2714 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 2715 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 2716 atomic_set(&tgtp->xmt_fcp_drop, 0); 2717 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 2718 atomic_set(&tgtp->xmt_fcp_read, 0); 2719 atomic_set(&tgtp->xmt_fcp_write, 0); 2720 atomic_set(&tgtp->xmt_fcp_rsp, 0); 2721 atomic_set(&tgtp->xmt_fcp_release, 0); 2722 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 2723 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 2724 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 2725 2726 atomic_set(&tgtp->xmt_fcp_abort, 0); 2727 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 2728 atomic_set(&tgtp->xmt_abort_sol, 0); 2729 atomic_set(&tgtp->xmt_abort_unsol, 0); 2730 atomic_set(&tgtp->xmt_abort_rsp, 0); 2731 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 2732 } 2733 return nbytes; 2734 } 2735 2736 static int 2737 lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file) 2738 { 2739 struct lpfc_vport *vport = inode->i_private; 2740 struct lpfc_debug *debug; 2741 int rc = -ENOMEM; 2742 2743 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2744 if (!debug) 2745 goto out; 2746 2747 /* Round to page boundary */ 2748 debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL); 2749 if (!debug->buffer) { 2750 kfree(debug); 2751 goto out; 2752 } 2753 2754 debug->len = lpfc_debugfs_scsistat_data(vport, debug->buffer, 2755 LPFC_SCSISTAT_SIZE); 2756 2757 debug->i_private = inode->i_private; 2758 file->private_data = debug; 2759 2760 rc = 0; 2761 out: 2762 return rc; 2763 } 2764 2765 static ssize_t 2766 lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf, 2767 size_t nbytes, loff_t *ppos) 2768 { 2769 struct lpfc_debug *debug = file->private_data; 2770 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2771 struct lpfc_hba *phba = vport->phba; 2772 char mybuf[6] = {0}; 2773 int i; 2774 2775 if (copy_from_user(mybuf, buf, (nbytes >= sizeof(mybuf)) ? 2776 (sizeof(mybuf) - 1) : nbytes)) 2777 return -EFAULT; 2778 2779 if ((strncmp(&mybuf[0], "reset", strlen("reset")) == 0) || 2780 (strncmp(&mybuf[0], "zero", strlen("zero")) == 0)) { 2781 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2782 memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0, 2783 sizeof(phba->sli4_hba.hdwq[i].scsi_cstat)); 2784 } 2785 } 2786 2787 return nbytes; 2788 } 2789 2790 static int 2791 lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file) 2792 { 2793 struct lpfc_vport *vport = inode->i_private; 2794 struct lpfc_debug *debug; 2795 int rc = -ENOMEM; 2796 2797 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2798 if (!debug) 2799 goto out; 2800 2801 /* Round to page boundary */ 2802 debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL); 2803 if (!debug->buffer) { 2804 kfree(debug); 2805 goto out; 2806 } 2807 2808 debug->len = lpfc_debugfs_ioktime_data(vport, debug->buffer, 2809 LPFC_IOKTIME_SIZE); 2810 2811 debug->i_private = inode->i_private; 2812 file->private_data = debug; 2813 2814 rc = 0; 2815 out: 2816 return rc; 2817 } 2818 2819 static ssize_t 2820 lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf, 2821 size_t nbytes, loff_t *ppos) 2822 { 2823 struct lpfc_debug *debug = file->private_data; 2824 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2825 struct lpfc_hba *phba = vport->phba; 2826 char mybuf[64]; 2827 char *pbuf; 2828 2829 if (nbytes > 64) 2830 nbytes = 64; 2831 2832 memset(mybuf, 0, sizeof(mybuf)); 2833 2834 if (copy_from_user(mybuf, buf, nbytes)) 2835 return -EFAULT; 2836 pbuf = &mybuf[0]; 2837 2838 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2839 phba->ktime_data_samples = 0; 2840 phba->ktime_status_samples = 0; 2841 phba->ktime_seg1_total = 0; 2842 phba->ktime_seg1_max = 0; 2843 phba->ktime_seg1_min = 0xffffffff; 2844 phba->ktime_seg2_total = 0; 2845 phba->ktime_seg2_max = 0; 2846 phba->ktime_seg2_min = 0xffffffff; 2847 phba->ktime_seg3_total = 0; 2848 phba->ktime_seg3_max = 0; 2849 phba->ktime_seg3_min = 0xffffffff; 2850 phba->ktime_seg4_total = 0; 2851 phba->ktime_seg4_max = 0; 2852 phba->ktime_seg4_min = 0xffffffff; 2853 phba->ktime_seg5_total = 0; 2854 phba->ktime_seg5_max = 0; 2855 phba->ktime_seg5_min = 0xffffffff; 2856 phba->ktime_seg6_total = 0; 2857 phba->ktime_seg6_max = 0; 2858 phba->ktime_seg6_min = 0xffffffff; 2859 phba->ktime_seg7_total = 0; 2860 phba->ktime_seg7_max = 0; 2861 phba->ktime_seg7_min = 0xffffffff; 2862 phba->ktime_seg8_total = 0; 2863 phba->ktime_seg8_max = 0; 2864 phba->ktime_seg8_min = 0xffffffff; 2865 phba->ktime_seg9_total = 0; 2866 phba->ktime_seg9_max = 0; 2867 phba->ktime_seg9_min = 0xffffffff; 2868 phba->ktime_seg10_total = 0; 2869 phba->ktime_seg10_max = 0; 2870 phba->ktime_seg10_min = 0xffffffff; 2871 2872 phba->ktime_on = 1; 2873 return strlen(pbuf); 2874 } else if ((strncmp(pbuf, "off", 2875 sizeof("off") - 1) == 0)) { 2876 phba->ktime_on = 0; 2877 return strlen(pbuf); 2878 } else if ((strncmp(pbuf, "zero", 2879 sizeof("zero") - 1) == 0)) { 2880 phba->ktime_data_samples = 0; 2881 phba->ktime_status_samples = 0; 2882 phba->ktime_seg1_total = 0; 2883 phba->ktime_seg1_max = 0; 2884 phba->ktime_seg1_min = 0xffffffff; 2885 phba->ktime_seg2_total = 0; 2886 phba->ktime_seg2_max = 0; 2887 phba->ktime_seg2_min = 0xffffffff; 2888 phba->ktime_seg3_total = 0; 2889 phba->ktime_seg3_max = 0; 2890 phba->ktime_seg3_min = 0xffffffff; 2891 phba->ktime_seg4_total = 0; 2892 phba->ktime_seg4_max = 0; 2893 phba->ktime_seg4_min = 0xffffffff; 2894 phba->ktime_seg5_total = 0; 2895 phba->ktime_seg5_max = 0; 2896 phba->ktime_seg5_min = 0xffffffff; 2897 phba->ktime_seg6_total = 0; 2898 phba->ktime_seg6_max = 0; 2899 phba->ktime_seg6_min = 0xffffffff; 2900 phba->ktime_seg7_total = 0; 2901 phba->ktime_seg7_max = 0; 2902 phba->ktime_seg7_min = 0xffffffff; 2903 phba->ktime_seg8_total = 0; 2904 phba->ktime_seg8_max = 0; 2905 phba->ktime_seg8_min = 0xffffffff; 2906 phba->ktime_seg9_total = 0; 2907 phba->ktime_seg9_max = 0; 2908 phba->ktime_seg9_min = 0xffffffff; 2909 phba->ktime_seg10_total = 0; 2910 phba->ktime_seg10_max = 0; 2911 phba->ktime_seg10_min = 0xffffffff; 2912 return strlen(pbuf); 2913 } 2914 return -EINVAL; 2915 } 2916 2917 static int 2918 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2919 { 2920 struct lpfc_hba *phba = inode->i_private; 2921 struct lpfc_debug *debug; 2922 int rc = -ENOMEM; 2923 2924 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2925 if (!debug) 2926 goto out; 2927 2928 /* Round to page boundary */ 2929 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2930 if (!debug->buffer) { 2931 kfree(debug); 2932 goto out; 2933 } 2934 2935 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2936 LPFC_NVMEIO_TRC_SIZE); 2937 2938 debug->i_private = inode->i_private; 2939 file->private_data = debug; 2940 2941 rc = 0; 2942 out: 2943 return rc; 2944 } 2945 2946 static ssize_t 2947 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2948 size_t nbytes, loff_t *ppos) 2949 { 2950 struct lpfc_debug *debug = file->private_data; 2951 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2952 int i; 2953 unsigned long sz; 2954 char mybuf[64]; 2955 char *pbuf; 2956 2957 if (nbytes > 63) 2958 nbytes = 63; 2959 2960 memset(mybuf, 0, sizeof(mybuf)); 2961 2962 if (copy_from_user(mybuf, buf, nbytes)) 2963 return -EFAULT; 2964 pbuf = &mybuf[0]; 2965 2966 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2968 "0570 nvmeio_trc_off\n"); 2969 phba->nvmeio_trc_output_idx = 0; 2970 phba->nvmeio_trc_on = 0; 2971 return strlen(pbuf); 2972 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2973 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2974 "0571 nvmeio_trc_on\n"); 2975 phba->nvmeio_trc_output_idx = 0; 2976 phba->nvmeio_trc_on = 1; 2977 return strlen(pbuf); 2978 } 2979 2980 /* We must be off to allocate the trace buffer */ 2981 if (phba->nvmeio_trc_on != 0) 2982 return -EINVAL; 2983 2984 /* If not on or off, the parameter is the trace buffer size */ 2985 i = kstrtoul(pbuf, 0, &sz); 2986 if (i) 2987 return -EINVAL; 2988 phba->nvmeio_trc_size = (uint32_t)sz; 2989 2990 /* It must be a power of 2 - round down */ 2991 i = 0; 2992 while (sz > 1) { 2993 sz = sz >> 1; 2994 i++; 2995 } 2996 sz = (1 << i); 2997 if (phba->nvmeio_trc_size != sz) 2998 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2999 "0572 nvmeio_trc_size changed to %ld\n", 3000 sz); 3001 phba->nvmeio_trc_size = (uint32_t)sz; 3002 3003 /* If one previously exists, free it */ 3004 kfree(phba->nvmeio_trc); 3005 3006 /* Allocate new trace buffer and initialize */ 3007 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 3008 sz), GFP_KERNEL); 3009 if (!phba->nvmeio_trc) { 3010 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3011 "0573 Cannot create debugfs " 3012 "nvmeio_trc buffer\n"); 3013 return -ENOMEM; 3014 } 3015 atomic_set(&phba->nvmeio_trc_cnt, 0); 3016 phba->nvmeio_trc_on = 0; 3017 phba->nvmeio_trc_output_idx = 0; 3018 3019 return strlen(pbuf); 3020 } 3021 3022 static int 3023 lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file) 3024 { 3025 struct lpfc_vport *vport = inode->i_private; 3026 struct lpfc_debug *debug; 3027 int rc = -ENOMEM; 3028 3029 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3030 if (!debug) 3031 goto out; 3032 3033 /* Round to page boundary */ 3034 debug->buffer = kcalloc(1, LPFC_SCSISTAT_SIZE, GFP_KERNEL); 3035 if (!debug->buffer) { 3036 kfree(debug); 3037 goto out; 3038 } 3039 3040 debug->len = lpfc_debugfs_hdwqstat_data(vport, debug->buffer, 3041 LPFC_SCSISTAT_SIZE); 3042 3043 debug->i_private = inode->i_private; 3044 file->private_data = debug; 3045 3046 rc = 0; 3047 out: 3048 return rc; 3049 } 3050 3051 static ssize_t 3052 lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf, 3053 size_t nbytes, loff_t *ppos) 3054 { 3055 struct lpfc_debug *debug = file->private_data; 3056 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 3057 struct lpfc_hba *phba = vport->phba; 3058 struct lpfc_hdwq_stat *c_stat; 3059 char mybuf[64]; 3060 char *pbuf; 3061 int i; 3062 3063 if (nbytes > 64) 3064 nbytes = 64; 3065 3066 memset(mybuf, 0, sizeof(mybuf)); 3067 3068 if (copy_from_user(mybuf, buf, nbytes)) 3069 return -EFAULT; 3070 pbuf = &mybuf[0]; 3071 3072 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 3073 if (phba->nvmet_support) 3074 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3075 else 3076 phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO | 3077 LPFC_CHECK_SCSI_IO); 3078 return strlen(pbuf); 3079 } else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) { 3080 if (phba->nvmet_support) 3081 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3082 else 3083 phba->hdwqstat_on |= LPFC_CHECK_NVME_IO; 3084 return strlen(pbuf); 3085 } else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) { 3086 if (!phba->nvmet_support) 3087 phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO; 3088 return strlen(pbuf); 3089 } else if ((strncmp(pbuf, "nvme_off", sizeof("nvme_off") - 1) == 0)) { 3090 phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO | 3091 LPFC_CHECK_NVMET_IO); 3092 return strlen(pbuf); 3093 } else if ((strncmp(pbuf, "scsi_off", sizeof("scsi_off") - 1) == 0)) { 3094 phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO; 3095 return strlen(pbuf); 3096 } else if ((strncmp(pbuf, "off", 3097 sizeof("off") - 1) == 0)) { 3098 phba->hdwqstat_on = LPFC_CHECK_OFF; 3099 return strlen(pbuf); 3100 } else if ((strncmp(pbuf, "zero", 3101 sizeof("zero") - 1) == 0)) { 3102 for_each_present_cpu(i) { 3103 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i); 3104 c_stat->xmt_io = 0; 3105 c_stat->cmpl_io = 0; 3106 c_stat->rcv_io = 0; 3107 } 3108 return strlen(pbuf); 3109 } 3110 return -EINVAL; 3111 } 3112 3113 /* 3114 * --------------------------------- 3115 * iDiag debugfs file access methods 3116 * --------------------------------- 3117 * 3118 * All access methods are through the proper SLI4 PCI function's debugfs 3119 * iDiag directory: 3120 * 3121 * /sys/kernel/debug/lpfc/fn<#>/iDiag 3122 */ 3123 3124 /** 3125 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 3126 * @buf: The pointer to the user space buffer. 3127 * @nbytes: The number of bytes in the user space buffer. 3128 * @idiag_cmd: pointer to the idiag command struct. 3129 * 3130 * This routine reads data from debugfs user space buffer and parses the 3131 * buffer for getting the idiag command and arguments. The while space in 3132 * between the set of data is used as the parsing separator. 3133 * 3134 * This routine returns 0 when successful, it returns proper error code 3135 * back to the user space in error conditions. 3136 */ 3137 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 3138 struct lpfc_idiag_cmd *idiag_cmd) 3139 { 3140 char mybuf[64]; 3141 char *pbuf, *step_str; 3142 int i; 3143 size_t bsize; 3144 3145 memset(mybuf, 0, sizeof(mybuf)); 3146 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 3147 bsize = min(nbytes, (sizeof(mybuf)-1)); 3148 3149 if (copy_from_user(mybuf, buf, bsize)) 3150 return -EFAULT; 3151 pbuf = &mybuf[0]; 3152 step_str = strsep(&pbuf, "\t "); 3153 3154 /* The opcode must present */ 3155 if (!step_str) 3156 return -EINVAL; 3157 3158 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 3159 if (idiag_cmd->opcode == 0) 3160 return -EINVAL; 3161 3162 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 3163 step_str = strsep(&pbuf, "\t "); 3164 if (!step_str) 3165 return i; 3166 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 3167 } 3168 return i; 3169 } 3170 3171 /** 3172 * lpfc_idiag_open - idiag open debugfs 3173 * @inode: The inode pointer that contains a pointer to phba. 3174 * @file: The file pointer to attach the file operation. 3175 * 3176 * Description: 3177 * This routine is the entry point for the debugfs open file operation. It 3178 * gets the reference to phba from the i_private field in @inode, it then 3179 * allocates buffer for the file operation, performs the necessary PCI config 3180 * space read into the allocated buffer according to the idiag user command 3181 * setup, and then returns a pointer to buffer in the private_data field in 3182 * @file. 3183 * 3184 * Returns: 3185 * This function returns zero if successful. On error it will return an 3186 * negative error value. 3187 **/ 3188 static int 3189 lpfc_idiag_open(struct inode *inode, struct file *file) 3190 { 3191 struct lpfc_debug *debug; 3192 3193 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3194 if (!debug) 3195 return -ENOMEM; 3196 3197 debug->i_private = inode->i_private; 3198 debug->buffer = NULL; 3199 file->private_data = debug; 3200 3201 return 0; 3202 } 3203 3204 /** 3205 * lpfc_idiag_release - Release idiag access file operation 3206 * @inode: The inode pointer that contains a vport pointer. (unused) 3207 * @file: The file pointer that contains the buffer to release. 3208 * 3209 * Description: 3210 * This routine is the generic release routine for the idiag access file 3211 * operation, it frees the buffer that was allocated when the debugfs file 3212 * was opened. 3213 * 3214 * Returns: 3215 * This function returns zero. 3216 **/ 3217 static int 3218 lpfc_idiag_release(struct inode *inode, struct file *file) 3219 { 3220 struct lpfc_debug *debug = file->private_data; 3221 3222 /* Free the buffers to the file operation */ 3223 kfree(debug->buffer); 3224 kfree(debug); 3225 3226 return 0; 3227 } 3228 3229 /** 3230 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 3231 * @inode: The inode pointer that contains a vport pointer. (unused) 3232 * @file: The file pointer that contains the buffer to release. 3233 * 3234 * Description: 3235 * This routine frees the buffer that was allocated when the debugfs file 3236 * was opened. It also reset the fields in the idiag command struct in the 3237 * case of command for write operation. 3238 * 3239 * Returns: 3240 * This function returns zero. 3241 **/ 3242 static int 3243 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 3244 { 3245 struct lpfc_debug *debug = file->private_data; 3246 3247 if (debug->op == LPFC_IDIAG_OP_WR) { 3248 switch (idiag.cmd.opcode) { 3249 case LPFC_IDIAG_CMD_PCICFG_WR: 3250 case LPFC_IDIAG_CMD_PCICFG_ST: 3251 case LPFC_IDIAG_CMD_PCICFG_CL: 3252 case LPFC_IDIAG_CMD_QUEACC_WR: 3253 case LPFC_IDIAG_CMD_QUEACC_ST: 3254 case LPFC_IDIAG_CMD_QUEACC_CL: 3255 memset(&idiag, 0, sizeof(idiag)); 3256 break; 3257 default: 3258 break; 3259 } 3260 } 3261 3262 /* Free the buffers to the file operation */ 3263 kfree(debug->buffer); 3264 kfree(debug); 3265 3266 return 0; 3267 } 3268 3269 /** 3270 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 3271 * @file: The file pointer to read from. 3272 * @buf: The buffer to copy the data to. 3273 * @nbytes: The number of bytes to read. 3274 * @ppos: The position in the file to start reading from. 3275 * 3276 * Description: 3277 * This routine reads data from the @phba pci config space according to the 3278 * idiag command, and copies to user @buf. Depending on the PCI config space 3279 * read command setup, it does either a single register read of a byte 3280 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 3281 * registers from the 4K extended PCI config space. 3282 * 3283 * Returns: 3284 * This function returns the amount of data that was read (this could be less 3285 * than @nbytes if the end of the file was reached) or a negative error value. 3286 **/ 3287 static ssize_t 3288 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 3289 loff_t *ppos) 3290 { 3291 struct lpfc_debug *debug = file->private_data; 3292 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3293 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 3294 int where, count; 3295 char *pbuffer; 3296 struct pci_dev *pdev; 3297 uint32_t u32val; 3298 uint16_t u16val; 3299 uint8_t u8val; 3300 3301 pdev = phba->pcidev; 3302 if (!pdev) 3303 return 0; 3304 3305 /* This is a user read operation */ 3306 debug->op = LPFC_IDIAG_OP_RD; 3307 3308 if (!debug->buffer) 3309 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 3310 if (!debug->buffer) 3311 return 0; 3312 pbuffer = debug->buffer; 3313 3314 if (*ppos) 3315 return 0; 3316 3317 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3318 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3319 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3320 } else 3321 return 0; 3322 3323 /* Read single PCI config space register */ 3324 switch (count) { 3325 case SIZE_U8: /* byte (8 bits) */ 3326 pci_read_config_byte(pdev, where, &u8val); 3327 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3328 "%03x: %02x\n", where, u8val); 3329 break; 3330 case SIZE_U16: /* word (16 bits) */ 3331 pci_read_config_word(pdev, where, &u16val); 3332 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3333 "%03x: %04x\n", where, u16val); 3334 break; 3335 case SIZE_U32: /* double word (32 bits) */ 3336 pci_read_config_dword(pdev, where, &u32val); 3337 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3338 "%03x: %08x\n", where, u32val); 3339 break; 3340 case LPFC_PCI_CFG_BROWSE: /* browse all */ 3341 goto pcicfg_browse; 3342 default: 3343 /* illegal count */ 3344 len = 0; 3345 break; 3346 } 3347 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3348 3349 pcicfg_browse: 3350 3351 /* Browse all PCI config space registers */ 3352 offset_label = idiag.offset.last_rd; 3353 offset = offset_label; 3354 3355 /* Read PCI config space */ 3356 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3357 "%03x: ", offset_label); 3358 while (index > 0) { 3359 pci_read_config_dword(pdev, offset, &u32val); 3360 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3361 "%08x ", u32val); 3362 offset += sizeof(uint32_t); 3363 if (offset >= LPFC_PCI_CFG_SIZE) { 3364 len += scnprintf(pbuffer+len, 3365 LPFC_PCI_CFG_SIZE-len, "\n"); 3366 break; 3367 } 3368 index -= sizeof(uint32_t); 3369 if (!index) 3370 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3371 "\n"); 3372 else if (!(index % (8 * sizeof(uint32_t)))) { 3373 offset_label += (8 * sizeof(uint32_t)); 3374 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3375 "\n%03x: ", offset_label); 3376 } 3377 } 3378 3379 /* Set up the offset for next portion of pci cfg read */ 3380 if (index == 0) { 3381 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 3382 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 3383 idiag.offset.last_rd = 0; 3384 } else 3385 idiag.offset.last_rd = 0; 3386 3387 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3388 } 3389 3390 /** 3391 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 3392 * @file: The file pointer to read from. 3393 * @buf: The buffer to copy the user data from. 3394 * @nbytes: The number of bytes to get. 3395 * @ppos: The position in the file to start reading from. 3396 * 3397 * This routine get the debugfs idiag command struct from user space and 3398 * then perform the syntax check for PCI config space read or write command 3399 * accordingly. In the case of PCI config space read command, it sets up 3400 * the command in the idiag command struct for the debugfs read operation. 3401 * In the case of PCI config space write operation, it executes the write 3402 * operation into the PCI config space accordingly. 3403 * 3404 * It returns the @nbytges passing in from debugfs user space when successful. 3405 * In case of error conditions, it returns proper error code back to the user 3406 * space. 3407 */ 3408 static ssize_t 3409 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 3410 size_t nbytes, loff_t *ppos) 3411 { 3412 struct lpfc_debug *debug = file->private_data; 3413 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3414 uint32_t where, value, count; 3415 uint32_t u32val; 3416 uint16_t u16val; 3417 uint8_t u8val; 3418 struct pci_dev *pdev; 3419 int rc; 3420 3421 pdev = phba->pcidev; 3422 if (!pdev) 3423 return -EFAULT; 3424 3425 /* This is a user write operation */ 3426 debug->op = LPFC_IDIAG_OP_WR; 3427 3428 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3429 if (rc < 0) 3430 return rc; 3431 3432 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3433 /* Sanity check on PCI config read command line arguments */ 3434 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 3435 goto error_out; 3436 /* Read command from PCI config space, set up command fields */ 3437 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3438 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3439 if (count == LPFC_PCI_CFG_BROWSE) { 3440 if (where % sizeof(uint32_t)) 3441 goto error_out; 3442 /* Starting offset to browse */ 3443 idiag.offset.last_rd = where; 3444 } else if ((count != sizeof(uint8_t)) && 3445 (count != sizeof(uint16_t)) && 3446 (count != sizeof(uint32_t))) 3447 goto error_out; 3448 if (count == sizeof(uint8_t)) { 3449 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3450 goto error_out; 3451 if (where % sizeof(uint8_t)) 3452 goto error_out; 3453 } 3454 if (count == sizeof(uint16_t)) { 3455 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3456 goto error_out; 3457 if (where % sizeof(uint16_t)) 3458 goto error_out; 3459 } 3460 if (count == sizeof(uint32_t)) { 3461 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3462 goto error_out; 3463 if (where % sizeof(uint32_t)) 3464 goto error_out; 3465 } 3466 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 3467 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 3468 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3469 /* Sanity check on PCI config write command line arguments */ 3470 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 3471 goto error_out; 3472 /* Write command to PCI config space, read-modify-write */ 3473 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3474 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3475 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 3476 /* Sanity checks */ 3477 if ((count != sizeof(uint8_t)) && 3478 (count != sizeof(uint16_t)) && 3479 (count != sizeof(uint32_t))) 3480 goto error_out; 3481 if (count == sizeof(uint8_t)) { 3482 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3483 goto error_out; 3484 if (where % sizeof(uint8_t)) 3485 goto error_out; 3486 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3487 pci_write_config_byte(pdev, where, 3488 (uint8_t)value); 3489 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3490 rc = pci_read_config_byte(pdev, where, &u8val); 3491 if (!rc) { 3492 u8val |= (uint8_t)value; 3493 pci_write_config_byte(pdev, where, 3494 u8val); 3495 } 3496 } 3497 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3498 rc = pci_read_config_byte(pdev, where, &u8val); 3499 if (!rc) { 3500 u8val &= (uint8_t)(~value); 3501 pci_write_config_byte(pdev, where, 3502 u8val); 3503 } 3504 } 3505 } 3506 if (count == sizeof(uint16_t)) { 3507 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3508 goto error_out; 3509 if (where % sizeof(uint16_t)) 3510 goto error_out; 3511 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3512 pci_write_config_word(pdev, where, 3513 (uint16_t)value); 3514 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3515 rc = pci_read_config_word(pdev, where, &u16val); 3516 if (!rc) { 3517 u16val |= (uint16_t)value; 3518 pci_write_config_word(pdev, where, 3519 u16val); 3520 } 3521 } 3522 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3523 rc = pci_read_config_word(pdev, where, &u16val); 3524 if (!rc) { 3525 u16val &= (uint16_t)(~value); 3526 pci_write_config_word(pdev, where, 3527 u16val); 3528 } 3529 } 3530 } 3531 if (count == sizeof(uint32_t)) { 3532 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3533 goto error_out; 3534 if (where % sizeof(uint32_t)) 3535 goto error_out; 3536 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3537 pci_write_config_dword(pdev, where, value); 3538 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3539 rc = pci_read_config_dword(pdev, where, 3540 &u32val); 3541 if (!rc) { 3542 u32val |= value; 3543 pci_write_config_dword(pdev, where, 3544 u32val); 3545 } 3546 } 3547 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3548 rc = pci_read_config_dword(pdev, where, 3549 &u32val); 3550 if (!rc) { 3551 u32val &= ~value; 3552 pci_write_config_dword(pdev, where, 3553 u32val); 3554 } 3555 } 3556 } 3557 } else 3558 /* All other opecodes are illegal for now */ 3559 goto error_out; 3560 3561 return nbytes; 3562 error_out: 3563 memset(&idiag, 0, sizeof(idiag)); 3564 return -EINVAL; 3565 } 3566 3567 /** 3568 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 3569 * @file: The file pointer to read from. 3570 * @buf: The buffer to copy the data to. 3571 * @nbytes: The number of bytes to read. 3572 * @ppos: The position in the file to start reading from. 3573 * 3574 * Description: 3575 * This routine reads data from the @phba pci bar memory mapped space 3576 * according to the idiag command, and copies to user @buf. 3577 * 3578 * Returns: 3579 * This function returns the amount of data that was read (this could be less 3580 * than @nbytes if the end of the file was reached) or a negative error value. 3581 **/ 3582 static ssize_t 3583 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 3584 loff_t *ppos) 3585 { 3586 struct lpfc_debug *debug = file->private_data; 3587 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3588 int offset_label, offset, offset_run, len = 0, index; 3589 int bar_num, acc_range, bar_size; 3590 char *pbuffer; 3591 void __iomem *mem_mapped_bar; 3592 uint32_t if_type; 3593 struct pci_dev *pdev; 3594 uint32_t u32val; 3595 3596 pdev = phba->pcidev; 3597 if (!pdev) 3598 return 0; 3599 3600 /* This is a user read operation */ 3601 debug->op = LPFC_IDIAG_OP_RD; 3602 3603 if (!debug->buffer) 3604 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 3605 if (!debug->buffer) 3606 return 0; 3607 pbuffer = debug->buffer; 3608 3609 if (*ppos) 3610 return 0; 3611 3612 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3613 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3614 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3615 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3616 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3617 } else 3618 return 0; 3619 3620 if (acc_range == 0) 3621 return 0; 3622 3623 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3624 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3625 if (bar_num == IDIAG_BARACC_BAR_0) 3626 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3627 else if (bar_num == IDIAG_BARACC_BAR_1) 3628 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3629 else if (bar_num == IDIAG_BARACC_BAR_2) 3630 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3631 else 3632 return 0; 3633 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3634 if (bar_num == IDIAG_BARACC_BAR_0) 3635 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3636 else 3637 return 0; 3638 } else 3639 return 0; 3640 3641 /* Read single PCI bar space register */ 3642 if (acc_range == SINGLE_WORD) { 3643 offset_run = offset; 3644 u32val = readl(mem_mapped_bar + offset_run); 3645 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3646 "%05x: %08x\n", offset_run, u32val); 3647 } else 3648 goto baracc_browse; 3649 3650 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3651 3652 baracc_browse: 3653 3654 /* Browse all PCI bar space registers */ 3655 offset_label = idiag.offset.last_rd; 3656 offset_run = offset_label; 3657 3658 /* Read PCI bar memory mapped space */ 3659 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3660 "%05x: ", offset_label); 3661 index = LPFC_PCI_BAR_RD_SIZE; 3662 while (index > 0) { 3663 u32val = readl(mem_mapped_bar + offset_run); 3664 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3665 "%08x ", u32val); 3666 offset_run += sizeof(uint32_t); 3667 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3668 if (offset_run >= bar_size) { 3669 len += scnprintf(pbuffer+len, 3670 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3671 break; 3672 } 3673 } else { 3674 if (offset_run >= offset + 3675 (acc_range * sizeof(uint32_t))) { 3676 len += scnprintf(pbuffer+len, 3677 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3678 break; 3679 } 3680 } 3681 index -= sizeof(uint32_t); 3682 if (!index) 3683 len += scnprintf(pbuffer+len, 3684 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3685 else if (!(index % (8 * sizeof(uint32_t)))) { 3686 offset_label += (8 * sizeof(uint32_t)); 3687 len += scnprintf(pbuffer+len, 3688 LPFC_PCI_BAR_RD_BUF_SIZE-len, 3689 "\n%05x: ", offset_label); 3690 } 3691 } 3692 3693 /* Set up the offset for next portion of pci bar read */ 3694 if (index == 0) { 3695 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 3696 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3697 if (idiag.offset.last_rd >= bar_size) 3698 idiag.offset.last_rd = 0; 3699 } else { 3700 if (offset_run >= offset + 3701 (acc_range * sizeof(uint32_t))) 3702 idiag.offset.last_rd = offset; 3703 } 3704 } else { 3705 if (acc_range == LPFC_PCI_BAR_BROWSE) 3706 idiag.offset.last_rd = 0; 3707 else 3708 idiag.offset.last_rd = offset; 3709 } 3710 3711 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3712 } 3713 3714 /** 3715 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 3716 * @file: The file pointer to read from. 3717 * @buf: The buffer to copy the user data from. 3718 * @nbytes: The number of bytes to get. 3719 * @ppos: The position in the file to start reading from. 3720 * 3721 * This routine get the debugfs idiag command struct from user space and 3722 * then perform the syntax check for PCI bar memory mapped space read or 3723 * write command accordingly. In the case of PCI bar memory mapped space 3724 * read command, it sets up the command in the idiag command struct for 3725 * the debugfs read operation. In the case of PCI bar memorpy mapped space 3726 * write operation, it executes the write operation into the PCI bar memory 3727 * mapped space accordingly. 3728 * 3729 * It returns the @nbytges passing in from debugfs user space when successful. 3730 * In case of error conditions, it returns proper error code back to the user 3731 * space. 3732 */ 3733 static ssize_t 3734 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 3735 size_t nbytes, loff_t *ppos) 3736 { 3737 struct lpfc_debug *debug = file->private_data; 3738 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3739 uint32_t bar_num, bar_size, offset, value, acc_range; 3740 struct pci_dev *pdev; 3741 void __iomem *mem_mapped_bar; 3742 uint32_t if_type; 3743 uint32_t u32val; 3744 int rc; 3745 3746 pdev = phba->pcidev; 3747 if (!pdev) 3748 return -EFAULT; 3749 3750 /* This is a user write operation */ 3751 debug->op = LPFC_IDIAG_OP_WR; 3752 3753 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3754 if (rc < 0) 3755 return rc; 3756 3757 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3758 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3759 3760 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3761 if ((bar_num != IDIAG_BARACC_BAR_0) && 3762 (bar_num != IDIAG_BARACC_BAR_1) && 3763 (bar_num != IDIAG_BARACC_BAR_2)) 3764 goto error_out; 3765 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3766 if (bar_num != IDIAG_BARACC_BAR_0) 3767 goto error_out; 3768 } else 3769 goto error_out; 3770 3771 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3772 if (bar_num == IDIAG_BARACC_BAR_0) { 3773 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3774 LPFC_PCI_IF0_BAR0_SIZE; 3775 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3776 } else if (bar_num == IDIAG_BARACC_BAR_1) { 3777 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3778 LPFC_PCI_IF0_BAR1_SIZE; 3779 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3780 } else if (bar_num == IDIAG_BARACC_BAR_2) { 3781 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3782 LPFC_PCI_IF0_BAR2_SIZE; 3783 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3784 } else 3785 goto error_out; 3786 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3787 if (bar_num == IDIAG_BARACC_BAR_0) { 3788 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3789 LPFC_PCI_IF2_BAR0_SIZE; 3790 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3791 } else 3792 goto error_out; 3793 } else 3794 goto error_out; 3795 3796 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3797 if (offset % sizeof(uint32_t)) 3798 goto error_out; 3799 3800 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3801 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3802 /* Sanity check on PCI config read command line arguments */ 3803 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3804 goto error_out; 3805 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3806 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3807 if (offset > bar_size - sizeof(uint32_t)) 3808 goto error_out; 3809 /* Starting offset to browse */ 3810 idiag.offset.last_rd = offset; 3811 } else if (acc_range > SINGLE_WORD) { 3812 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3813 goto error_out; 3814 /* Starting offset to browse */ 3815 idiag.offset.last_rd = offset; 3816 } else if (acc_range != SINGLE_WORD) 3817 goto error_out; 3818 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3819 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3820 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3821 /* Sanity check on PCI bar write command line arguments */ 3822 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3823 goto error_out; 3824 /* Write command to PCI bar space, read-modify-write */ 3825 acc_range = SINGLE_WORD; 3826 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3827 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3828 writel(value, mem_mapped_bar + offset); 3829 readl(mem_mapped_bar + offset); 3830 } 3831 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3832 u32val = readl(mem_mapped_bar + offset); 3833 u32val |= value; 3834 writel(u32val, mem_mapped_bar + offset); 3835 readl(mem_mapped_bar + offset); 3836 } 3837 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3838 u32val = readl(mem_mapped_bar + offset); 3839 u32val &= ~value; 3840 writel(u32val, mem_mapped_bar + offset); 3841 readl(mem_mapped_bar + offset); 3842 } 3843 } else 3844 /* All other opecodes are illegal for now */ 3845 goto error_out; 3846 3847 return nbytes; 3848 error_out: 3849 memset(&idiag, 0, sizeof(idiag)); 3850 return -EINVAL; 3851 } 3852 3853 static int 3854 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3855 char *pbuffer, int len) 3856 { 3857 if (!qp) 3858 return len; 3859 3860 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3861 "\t\t%s WQ info: ", wqtype); 3862 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3863 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3864 qp->assoc_qid, qp->q_cnt_1, 3865 (unsigned long long)qp->q_cnt_4); 3866 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3867 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3868 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]", 3869 qp->queue_id, qp->entry_count, 3870 qp->entry_size, qp->host_index, 3871 qp->hba_index, qp->notify_interval); 3872 len += scnprintf(pbuffer + len, 3873 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3874 return len; 3875 } 3876 3877 static int 3878 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3879 int *len, int max_cnt, int cq_id) 3880 { 3881 struct lpfc_queue *qp; 3882 int qidx; 3883 3884 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 3885 qp = phba->sli4_hba.hdwq[qidx].io_wq; 3886 if (qp->assoc_qid != cq_id) 3887 continue; 3888 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3889 if (*len >= max_cnt) 3890 return 1; 3891 } 3892 return 0; 3893 } 3894 3895 static int 3896 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3897 char *pbuffer, int len) 3898 { 3899 if (!qp) 3900 return len; 3901 3902 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3903 "\t%s CQ info: ", cqtype); 3904 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3905 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3906 "xabt:x%x wq:x%llx]\n", 3907 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3908 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3909 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3910 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3911 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d]", 3912 qp->queue_id, qp->entry_count, 3913 qp->entry_size, qp->host_index, 3914 qp->notify_interval, qp->max_proc_limit); 3915 3916 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3917 "\n"); 3918 3919 return len; 3920 } 3921 3922 static int 3923 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3924 char *rqtype, char *pbuffer, int len) 3925 { 3926 if (!qp || !datqp) 3927 return len; 3928 3929 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3930 "\t\t%s RQ info: ", rqtype); 3931 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3932 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3933 "posted:x%x rcv:x%llx]\n", 3934 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3935 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3936 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3937 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3938 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3939 qp->queue_id, qp->entry_count, qp->entry_size, 3940 qp->host_index, qp->hba_index, qp->notify_interval); 3941 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3942 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3943 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3944 datqp->queue_id, datqp->entry_count, 3945 datqp->entry_size, datqp->host_index, 3946 datqp->hba_index, datqp->notify_interval); 3947 return len; 3948 } 3949 3950 static int 3951 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3952 int *len, int max_cnt, int eqidx, int eq_id) 3953 { 3954 struct lpfc_queue *qp; 3955 int rc; 3956 3957 qp = phba->sli4_hba.hdwq[eqidx].io_cq; 3958 3959 *len = __lpfc_idiag_print_cq(qp, "IO", pbuffer, *len); 3960 3961 /* Reset max counter */ 3962 qp->CQ_max_cqe = 0; 3963 3964 if (*len >= max_cnt) 3965 return 1; 3966 3967 rc = lpfc_idiag_wqs_for_cq(phba, "IO", pbuffer, len, 3968 max_cnt, qp->queue_id); 3969 if (rc) 3970 return 1; 3971 3972 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) { 3973 /* NVMET CQset */ 3974 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 3975 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 3976 3977 /* Reset max counter */ 3978 qp->CQ_max_cqe = 0; 3979 3980 if (*len >= max_cnt) 3981 return 1; 3982 3983 /* RQ header */ 3984 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 3985 *len = __lpfc_idiag_print_rqpair(qp, 3986 phba->sli4_hba.nvmet_mrq_data[eqidx], 3987 "NVMET MRQ", pbuffer, *len); 3988 3989 if (*len >= max_cnt) 3990 return 1; 3991 } 3992 3993 return 0; 3994 } 3995 3996 static int 3997 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 3998 char *pbuffer, int len) 3999 { 4000 if (!qp) 4001 return len; 4002 4003 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4004 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 4005 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n", 4006 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 4007 (unsigned long long)qp->q_cnt_4, qp->q_mode); 4008 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4009 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 4010 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]", 4011 qp->queue_id, qp->entry_count, qp->entry_size, 4012 qp->host_index, qp->notify_interval, 4013 qp->max_proc_limit, qp->chann); 4014 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4015 "\n"); 4016 4017 return len; 4018 } 4019 4020 /** 4021 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 4022 * @file: The file pointer to read from. 4023 * @buf: The buffer to copy the data to. 4024 * @nbytes: The number of bytes to read. 4025 * @ppos: The position in the file to start reading from. 4026 * 4027 * Description: 4028 * This routine reads data from the @phba SLI4 PCI function queue information, 4029 * and copies to user @buf. 4030 * This routine only returns 1 EQs worth of information. It remembers the last 4031 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 4032 * retrieve all EQs allocated for the phba. 4033 * 4034 * Returns: 4035 * This function returns the amount of data that was read (this could be less 4036 * than @nbytes if the end of the file was reached) or a negative error value. 4037 **/ 4038 static ssize_t 4039 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 4040 loff_t *ppos) 4041 { 4042 struct lpfc_debug *debug = file->private_data; 4043 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4044 char *pbuffer; 4045 int max_cnt, rc, x, len = 0; 4046 struct lpfc_queue *qp = NULL; 4047 4048 if (!debug->buffer) 4049 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 4050 if (!debug->buffer) 4051 return 0; 4052 pbuffer = debug->buffer; 4053 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 4054 4055 if (*ppos) 4056 return 0; 4057 4058 spin_lock_irq(&phba->hbalock); 4059 4060 /* Fast-path event queue */ 4061 if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) { 4062 4063 x = phba->lpfc_idiag_last_eq; 4064 phba->lpfc_idiag_last_eq++; 4065 if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue) 4066 phba->lpfc_idiag_last_eq = 0; 4067 4068 len += scnprintf(pbuffer + len, 4069 LPFC_QUE_INFO_GET_BUF_SIZE - len, 4070 "HDWQ %d out of %d HBA HDWQs\n", 4071 x, phba->cfg_hdw_queue); 4072 4073 /* Fast-path EQ */ 4074 qp = phba->sli4_hba.hdwq[x].hba_eq; 4075 if (!qp) 4076 goto out; 4077 4078 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 4079 4080 /* Reset max counter */ 4081 qp->EQ_max_eqe = 0; 4082 4083 if (len >= max_cnt) 4084 goto too_big; 4085 4086 /* will dump both fcp and nvme cqs/wqs for the eq */ 4087 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 4088 max_cnt, x, qp->queue_id); 4089 if (rc) 4090 goto too_big; 4091 4092 /* Only EQ 0 has slow path CQs configured */ 4093 if (x) 4094 goto out; 4095 4096 /* Slow-path mailbox CQ */ 4097 qp = phba->sli4_hba.mbx_cq; 4098 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 4099 if (len >= max_cnt) 4100 goto too_big; 4101 4102 /* Slow-path MBOX MQ */ 4103 qp = phba->sli4_hba.mbx_wq; 4104 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 4105 if (len >= max_cnt) 4106 goto too_big; 4107 4108 /* Slow-path ELS response CQ */ 4109 qp = phba->sli4_hba.els_cq; 4110 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 4111 /* Reset max counter */ 4112 if (qp) 4113 qp->CQ_max_cqe = 0; 4114 if (len >= max_cnt) 4115 goto too_big; 4116 4117 /* Slow-path ELS WQ */ 4118 qp = phba->sli4_hba.els_wq; 4119 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 4120 if (len >= max_cnt) 4121 goto too_big; 4122 4123 qp = phba->sli4_hba.hdr_rq; 4124 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 4125 "ELS RQpair", pbuffer, len); 4126 if (len >= max_cnt) 4127 goto too_big; 4128 4129 /* Slow-path NVME LS response CQ */ 4130 qp = phba->sli4_hba.nvmels_cq; 4131 len = __lpfc_idiag_print_cq(qp, "NVME LS", 4132 pbuffer, len); 4133 /* Reset max counter */ 4134 if (qp) 4135 qp->CQ_max_cqe = 0; 4136 if (len >= max_cnt) 4137 goto too_big; 4138 4139 /* Slow-path NVME LS WQ */ 4140 qp = phba->sli4_hba.nvmels_wq; 4141 len = __lpfc_idiag_print_wq(qp, "NVME LS", 4142 pbuffer, len); 4143 if (len >= max_cnt) 4144 goto too_big; 4145 4146 goto out; 4147 } 4148 4149 spin_unlock_irq(&phba->hbalock); 4150 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4151 4152 too_big: 4153 len += scnprintf(pbuffer + len, 4154 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 4155 out: 4156 spin_unlock_irq(&phba->hbalock); 4157 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4158 } 4159 4160 /** 4161 * lpfc_idiag_que_param_check - queue access command parameter sanity check 4162 * @q: The pointer to queue structure. 4163 * @index: The index into a queue entry. 4164 * @count: The number of queue entries to access. 4165 * 4166 * Description: 4167 * The routine performs sanity check on device queue access method commands. 4168 * 4169 * Returns: 4170 * This function returns -EINVAL when fails the sanity check, otherwise, it 4171 * returns 0. 4172 **/ 4173 static int 4174 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 4175 { 4176 /* Only support single entry read or browsing */ 4177 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 4178 return -EINVAL; 4179 if (index > q->entry_count - 1) 4180 return -EINVAL; 4181 return 0; 4182 } 4183 4184 /** 4185 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 4186 * @pbuffer: The pointer to buffer to copy the read data into. 4187 * @len: Length of the buffer. 4188 * @pque: The pointer to the queue to be read. 4189 * @index: The index into the queue entry. 4190 * 4191 * Description: 4192 * This routine reads out a single entry from the given queue's index location 4193 * and copies it into the buffer provided. 4194 * 4195 * Returns: 4196 * This function returns 0 when it fails, otherwise, it returns the length of 4197 * the data read into the buffer provided. 4198 **/ 4199 static int 4200 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 4201 uint32_t index) 4202 { 4203 int offset, esize; 4204 uint32_t *pentry; 4205 4206 if (!pbuffer || !pque) 4207 return 0; 4208 4209 esize = pque->entry_size; 4210 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4211 "QE-INDEX[%04d]:\n", index); 4212 4213 offset = 0; 4214 pentry = lpfc_sli4_qe(pque, index); 4215 while (esize > 0) { 4216 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4217 "%08x ", *pentry); 4218 pentry++; 4219 offset += sizeof(uint32_t); 4220 esize -= sizeof(uint32_t); 4221 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 4222 len += scnprintf(pbuffer+len, 4223 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4224 } 4225 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4226 4227 return len; 4228 } 4229 4230 /** 4231 * lpfc_idiag_queacc_read - idiag debugfs read port queue 4232 * @file: The file pointer to read from. 4233 * @buf: The buffer to copy the data to. 4234 * @nbytes: The number of bytes to read. 4235 * @ppos: The position in the file to start reading from. 4236 * 4237 * Description: 4238 * This routine reads data from the @phba device queue memory according to the 4239 * idiag command, and copies to user @buf. Depending on the queue dump read 4240 * command setup, it does either a single queue entry read or browing through 4241 * all entries of the queue. 4242 * 4243 * Returns: 4244 * This function returns the amount of data that was read (this could be less 4245 * than @nbytes if the end of the file was reached) or a negative error value. 4246 **/ 4247 static ssize_t 4248 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 4249 loff_t *ppos) 4250 { 4251 struct lpfc_debug *debug = file->private_data; 4252 uint32_t last_index, index, count; 4253 struct lpfc_queue *pque = NULL; 4254 char *pbuffer; 4255 int len = 0; 4256 4257 /* This is a user read operation */ 4258 debug->op = LPFC_IDIAG_OP_RD; 4259 4260 if (!debug->buffer) 4261 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 4262 if (!debug->buffer) 4263 return 0; 4264 pbuffer = debug->buffer; 4265 4266 if (*ppos) 4267 return 0; 4268 4269 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4270 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4271 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4272 pque = (struct lpfc_queue *)idiag.ptr_private; 4273 } else 4274 return 0; 4275 4276 /* Browse the queue starting from index */ 4277 if (count == LPFC_QUE_ACC_BROWSE) 4278 goto que_browse; 4279 4280 /* Read a single entry from the queue */ 4281 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4282 4283 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4284 4285 que_browse: 4286 4287 /* Browse all entries from the queue */ 4288 last_index = idiag.offset.last_rd; 4289 index = last_index; 4290 4291 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 4292 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4293 index++; 4294 if (index > pque->entry_count - 1) 4295 break; 4296 } 4297 4298 /* Set up the offset for next portion of pci cfg read */ 4299 if (index > pque->entry_count - 1) 4300 index = 0; 4301 idiag.offset.last_rd = index; 4302 4303 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4304 } 4305 4306 /** 4307 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 4308 * @file: The file pointer to read from. 4309 * @buf: The buffer to copy the user data from. 4310 * @nbytes: The number of bytes to get. 4311 * @ppos: The position in the file to start reading from. 4312 * 4313 * This routine get the debugfs idiag command struct from user space and then 4314 * perform the syntax check for port queue read (dump) or write (set) command 4315 * accordingly. In the case of port queue read command, it sets up the command 4316 * in the idiag command struct for the following debugfs read operation. In 4317 * the case of port queue write operation, it executes the write operation 4318 * into the port queue entry accordingly. 4319 * 4320 * It returns the @nbytges passing in from debugfs user space when successful. 4321 * In case of error conditions, it returns proper error code back to the user 4322 * space. 4323 **/ 4324 static ssize_t 4325 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 4326 size_t nbytes, loff_t *ppos) 4327 { 4328 struct lpfc_debug *debug = file->private_data; 4329 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4330 uint32_t qidx, quetp, queid, index, count, offset, value; 4331 uint32_t *pentry; 4332 struct lpfc_queue *pque, *qp; 4333 int rc; 4334 4335 /* This is a user write operation */ 4336 debug->op = LPFC_IDIAG_OP_WR; 4337 4338 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4339 if (rc < 0) 4340 return rc; 4341 4342 /* Get and sanity check on command feilds */ 4343 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 4344 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 4345 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4346 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4347 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 4348 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 4349 4350 /* Sanity check on command line arguments */ 4351 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4352 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4353 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4354 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 4355 goto error_out; 4356 if (count != 1) 4357 goto error_out; 4358 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4359 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 4360 goto error_out; 4361 } else 4362 goto error_out; 4363 4364 switch (quetp) { 4365 case LPFC_IDIAG_EQ: 4366 /* HBA event queue */ 4367 if (phba->sli4_hba.hdwq) { 4368 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4369 qp = phba->sli4_hba.hdwq[qidx].hba_eq; 4370 if (qp && qp->queue_id == queid) { 4371 /* Sanity check */ 4372 rc = lpfc_idiag_que_param_check(qp, 4373 index, count); 4374 if (rc) 4375 goto error_out; 4376 idiag.ptr_private = qp; 4377 goto pass_check; 4378 } 4379 } 4380 } 4381 goto error_out; 4382 4383 case LPFC_IDIAG_CQ: 4384 /* MBX complete queue */ 4385 if (phba->sli4_hba.mbx_cq && 4386 phba->sli4_hba.mbx_cq->queue_id == queid) { 4387 /* Sanity check */ 4388 rc = lpfc_idiag_que_param_check( 4389 phba->sli4_hba.mbx_cq, index, count); 4390 if (rc) 4391 goto error_out; 4392 idiag.ptr_private = phba->sli4_hba.mbx_cq; 4393 goto pass_check; 4394 } 4395 /* ELS complete queue */ 4396 if (phba->sli4_hba.els_cq && 4397 phba->sli4_hba.els_cq->queue_id == queid) { 4398 /* Sanity check */ 4399 rc = lpfc_idiag_que_param_check( 4400 phba->sli4_hba.els_cq, index, count); 4401 if (rc) 4402 goto error_out; 4403 idiag.ptr_private = phba->sli4_hba.els_cq; 4404 goto pass_check; 4405 } 4406 /* NVME LS complete queue */ 4407 if (phba->sli4_hba.nvmels_cq && 4408 phba->sli4_hba.nvmels_cq->queue_id == queid) { 4409 /* Sanity check */ 4410 rc = lpfc_idiag_que_param_check( 4411 phba->sli4_hba.nvmels_cq, index, count); 4412 if (rc) 4413 goto error_out; 4414 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 4415 goto pass_check; 4416 } 4417 /* FCP complete queue */ 4418 if (phba->sli4_hba.hdwq) { 4419 for (qidx = 0; qidx < phba->cfg_hdw_queue; 4420 qidx++) { 4421 qp = phba->sli4_hba.hdwq[qidx].io_cq; 4422 if (qp && qp->queue_id == queid) { 4423 /* Sanity check */ 4424 rc = lpfc_idiag_que_param_check( 4425 qp, index, count); 4426 if (rc) 4427 goto error_out; 4428 idiag.ptr_private = qp; 4429 goto pass_check; 4430 } 4431 } 4432 } 4433 goto error_out; 4434 4435 case LPFC_IDIAG_MQ: 4436 /* MBX work queue */ 4437 if (phba->sli4_hba.mbx_wq && 4438 phba->sli4_hba.mbx_wq->queue_id == queid) { 4439 /* Sanity check */ 4440 rc = lpfc_idiag_que_param_check( 4441 phba->sli4_hba.mbx_wq, index, count); 4442 if (rc) 4443 goto error_out; 4444 idiag.ptr_private = phba->sli4_hba.mbx_wq; 4445 goto pass_check; 4446 } 4447 goto error_out; 4448 4449 case LPFC_IDIAG_WQ: 4450 /* ELS work queue */ 4451 if (phba->sli4_hba.els_wq && 4452 phba->sli4_hba.els_wq->queue_id == queid) { 4453 /* Sanity check */ 4454 rc = lpfc_idiag_que_param_check( 4455 phba->sli4_hba.els_wq, index, count); 4456 if (rc) 4457 goto error_out; 4458 idiag.ptr_private = phba->sli4_hba.els_wq; 4459 goto pass_check; 4460 } 4461 /* NVME LS work queue */ 4462 if (phba->sli4_hba.nvmels_wq && 4463 phba->sli4_hba.nvmels_wq->queue_id == queid) { 4464 /* Sanity check */ 4465 rc = lpfc_idiag_que_param_check( 4466 phba->sli4_hba.nvmels_wq, index, count); 4467 if (rc) 4468 goto error_out; 4469 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 4470 goto pass_check; 4471 } 4472 4473 if (phba->sli4_hba.hdwq) { 4474 /* FCP/SCSI work queue */ 4475 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4476 qp = phba->sli4_hba.hdwq[qidx].io_wq; 4477 if (qp && qp->queue_id == queid) { 4478 /* Sanity check */ 4479 rc = lpfc_idiag_que_param_check( 4480 qp, index, count); 4481 if (rc) 4482 goto error_out; 4483 idiag.ptr_private = qp; 4484 goto pass_check; 4485 } 4486 } 4487 } 4488 goto error_out; 4489 4490 case LPFC_IDIAG_RQ: 4491 /* HDR queue */ 4492 if (phba->sli4_hba.hdr_rq && 4493 phba->sli4_hba.hdr_rq->queue_id == queid) { 4494 /* Sanity check */ 4495 rc = lpfc_idiag_que_param_check( 4496 phba->sli4_hba.hdr_rq, index, count); 4497 if (rc) 4498 goto error_out; 4499 idiag.ptr_private = phba->sli4_hba.hdr_rq; 4500 goto pass_check; 4501 } 4502 /* DAT queue */ 4503 if (phba->sli4_hba.dat_rq && 4504 phba->sli4_hba.dat_rq->queue_id == queid) { 4505 /* Sanity check */ 4506 rc = lpfc_idiag_que_param_check( 4507 phba->sli4_hba.dat_rq, index, count); 4508 if (rc) 4509 goto error_out; 4510 idiag.ptr_private = phba->sli4_hba.dat_rq; 4511 goto pass_check; 4512 } 4513 goto error_out; 4514 default: 4515 goto error_out; 4516 } 4517 4518 pass_check: 4519 4520 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4521 if (count == LPFC_QUE_ACC_BROWSE) 4522 idiag.offset.last_rd = index; 4523 } 4524 4525 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4526 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4527 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4528 /* Additional sanity checks on write operation */ 4529 pque = (struct lpfc_queue *)idiag.ptr_private; 4530 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 4531 goto error_out; 4532 pentry = lpfc_sli4_qe(pque, index); 4533 pentry += offset; 4534 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 4535 *pentry = value; 4536 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 4537 *pentry |= value; 4538 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 4539 *pentry &= ~value; 4540 } 4541 return nbytes; 4542 4543 error_out: 4544 /* Clean out command structure on command error out */ 4545 memset(&idiag, 0, sizeof(idiag)); 4546 return -EINVAL; 4547 } 4548 4549 /** 4550 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 4551 * @phba: The pointer to hba structure. 4552 * @pbuffer: The pointer to the buffer to copy the data to. 4553 * @len: The length of bytes to copied. 4554 * @drbregid: The id to doorbell registers. 4555 * 4556 * Description: 4557 * This routine reads a doorbell register and copies its content to the 4558 * user buffer pointed to by @pbuffer. 4559 * 4560 * Returns: 4561 * This function returns the amount of data that was copied into @pbuffer. 4562 **/ 4563 static int 4564 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4565 int len, uint32_t drbregid) 4566 { 4567 4568 if (!pbuffer) 4569 return 0; 4570 4571 switch (drbregid) { 4572 case LPFC_DRB_EQ: 4573 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len, 4574 "EQ-DRB-REG: 0x%08x\n", 4575 readl(phba->sli4_hba.EQDBregaddr)); 4576 break; 4577 case LPFC_DRB_CQ: 4578 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len, 4579 "CQ-DRB-REG: 0x%08x\n", 4580 readl(phba->sli4_hba.CQDBregaddr)); 4581 break; 4582 case LPFC_DRB_MQ: 4583 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4584 "MQ-DRB-REG: 0x%08x\n", 4585 readl(phba->sli4_hba.MQDBregaddr)); 4586 break; 4587 case LPFC_DRB_WQ: 4588 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4589 "WQ-DRB-REG: 0x%08x\n", 4590 readl(phba->sli4_hba.WQDBregaddr)); 4591 break; 4592 case LPFC_DRB_RQ: 4593 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4594 "RQ-DRB-REG: 0x%08x\n", 4595 readl(phba->sli4_hba.RQDBregaddr)); 4596 break; 4597 default: 4598 break; 4599 } 4600 4601 return len; 4602 } 4603 4604 /** 4605 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 4606 * @file: The file pointer to read from. 4607 * @buf: The buffer to copy the data to. 4608 * @nbytes: The number of bytes to read. 4609 * @ppos: The position in the file to start reading from. 4610 * 4611 * Description: 4612 * This routine reads data from the @phba device doorbell register according 4613 * to the idiag command, and copies to user @buf. Depending on the doorbell 4614 * register read command setup, it does either a single doorbell register 4615 * read or dump all doorbell registers. 4616 * 4617 * Returns: 4618 * This function returns the amount of data that was read (this could be less 4619 * than @nbytes if the end of the file was reached) or a negative error value. 4620 **/ 4621 static ssize_t 4622 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 4623 loff_t *ppos) 4624 { 4625 struct lpfc_debug *debug = file->private_data; 4626 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4627 uint32_t drb_reg_id, i; 4628 char *pbuffer; 4629 int len = 0; 4630 4631 /* This is a user read operation */ 4632 debug->op = LPFC_IDIAG_OP_RD; 4633 4634 if (!debug->buffer) 4635 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 4636 if (!debug->buffer) 4637 return 0; 4638 pbuffer = debug->buffer; 4639 4640 if (*ppos) 4641 return 0; 4642 4643 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 4644 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4645 else 4646 return 0; 4647 4648 if (drb_reg_id == LPFC_DRB_ACC_ALL) 4649 for (i = 1; i <= LPFC_DRB_MAX; i++) 4650 len = lpfc_idiag_drbacc_read_reg(phba, 4651 pbuffer, len, i); 4652 else 4653 len = lpfc_idiag_drbacc_read_reg(phba, 4654 pbuffer, len, drb_reg_id); 4655 4656 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4657 } 4658 4659 /** 4660 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 4661 * @file: The file pointer to read from. 4662 * @buf: The buffer to copy the user data from. 4663 * @nbytes: The number of bytes to get. 4664 * @ppos: The position in the file to start reading from. 4665 * 4666 * This routine get the debugfs idiag command struct from user space and then 4667 * perform the syntax check for port doorbell register read (dump) or write 4668 * (set) command accordingly. In the case of port queue read command, it sets 4669 * up the command in the idiag command struct for the following debugfs read 4670 * operation. In the case of port doorbell register write operation, it 4671 * executes the write operation into the port doorbell register accordingly. 4672 * 4673 * It returns the @nbytges passing in from debugfs user space when successful. 4674 * In case of error conditions, it returns proper error code back to the user 4675 * space. 4676 **/ 4677 static ssize_t 4678 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 4679 size_t nbytes, loff_t *ppos) 4680 { 4681 struct lpfc_debug *debug = file->private_data; 4682 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4683 uint32_t drb_reg_id, value, reg_val = 0; 4684 void __iomem *drb_reg; 4685 int rc; 4686 4687 /* This is a user write operation */ 4688 debug->op = LPFC_IDIAG_OP_WR; 4689 4690 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4691 if (rc < 0) 4692 return rc; 4693 4694 /* Sanity check on command line arguments */ 4695 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4696 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4697 4698 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4699 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4700 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4701 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4702 goto error_out; 4703 if (drb_reg_id > LPFC_DRB_MAX) 4704 goto error_out; 4705 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4706 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4707 goto error_out; 4708 if ((drb_reg_id > LPFC_DRB_MAX) && 4709 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4710 goto error_out; 4711 } else 4712 goto error_out; 4713 4714 /* Perform the write access operation */ 4715 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4716 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4717 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4718 switch (drb_reg_id) { 4719 case LPFC_DRB_EQ: 4720 drb_reg = phba->sli4_hba.EQDBregaddr; 4721 break; 4722 case LPFC_DRB_CQ: 4723 drb_reg = phba->sli4_hba.CQDBregaddr; 4724 break; 4725 case LPFC_DRB_MQ: 4726 drb_reg = phba->sli4_hba.MQDBregaddr; 4727 break; 4728 case LPFC_DRB_WQ: 4729 drb_reg = phba->sli4_hba.WQDBregaddr; 4730 break; 4731 case LPFC_DRB_RQ: 4732 drb_reg = phba->sli4_hba.RQDBregaddr; 4733 break; 4734 default: 4735 goto error_out; 4736 } 4737 4738 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4739 reg_val = value; 4740 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4741 reg_val = readl(drb_reg); 4742 reg_val |= value; 4743 } 4744 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4745 reg_val = readl(drb_reg); 4746 reg_val &= ~value; 4747 } 4748 writel(reg_val, drb_reg); 4749 readl(drb_reg); /* flush */ 4750 } 4751 return nbytes; 4752 4753 error_out: 4754 /* Clean out command structure on command error out */ 4755 memset(&idiag, 0, sizeof(idiag)); 4756 return -EINVAL; 4757 } 4758 4759 /** 4760 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4761 * @phba: The pointer to hba structure. 4762 * @pbuffer: The pointer to the buffer to copy the data to. 4763 * @len: The length of bytes to copied. 4764 * @ctlregid: The id to doorbell registers. 4765 * 4766 * Description: 4767 * This routine reads a control register and copies its content to the 4768 * user buffer pointed to by @pbuffer. 4769 * 4770 * Returns: 4771 * This function returns the amount of data that was copied into @pbuffer. 4772 **/ 4773 static int 4774 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4775 int len, uint32_t ctlregid) 4776 { 4777 4778 if (!pbuffer) 4779 return 0; 4780 4781 switch (ctlregid) { 4782 case LPFC_CTL_PORT_SEM: 4783 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4784 "Port SemReg: 0x%08x\n", 4785 readl(phba->sli4_hba.conf_regs_memmap_p + 4786 LPFC_CTL_PORT_SEM_OFFSET)); 4787 break; 4788 case LPFC_CTL_PORT_STA: 4789 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4790 "Port StaReg: 0x%08x\n", 4791 readl(phba->sli4_hba.conf_regs_memmap_p + 4792 LPFC_CTL_PORT_STA_OFFSET)); 4793 break; 4794 case LPFC_CTL_PORT_CTL: 4795 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4796 "Port CtlReg: 0x%08x\n", 4797 readl(phba->sli4_hba.conf_regs_memmap_p + 4798 LPFC_CTL_PORT_CTL_OFFSET)); 4799 break; 4800 case LPFC_CTL_PORT_ER1: 4801 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4802 "Port Er1Reg: 0x%08x\n", 4803 readl(phba->sli4_hba.conf_regs_memmap_p + 4804 LPFC_CTL_PORT_ER1_OFFSET)); 4805 break; 4806 case LPFC_CTL_PORT_ER2: 4807 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4808 "Port Er2Reg: 0x%08x\n", 4809 readl(phba->sli4_hba.conf_regs_memmap_p + 4810 LPFC_CTL_PORT_ER2_OFFSET)); 4811 break; 4812 case LPFC_CTL_PDEV_CTL: 4813 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4814 "PDev CtlReg: 0x%08x\n", 4815 readl(phba->sli4_hba.conf_regs_memmap_p + 4816 LPFC_CTL_PDEV_CTL_OFFSET)); 4817 break; 4818 default: 4819 break; 4820 } 4821 return len; 4822 } 4823 4824 /** 4825 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4826 * @file: The file pointer to read from. 4827 * @buf: The buffer to copy the data to. 4828 * @nbytes: The number of bytes to read. 4829 * @ppos: The position in the file to start reading from. 4830 * 4831 * Description: 4832 * This routine reads data from the @phba port and device registers according 4833 * to the idiag command, and copies to user @buf. 4834 * 4835 * Returns: 4836 * This function returns the amount of data that was read (this could be less 4837 * than @nbytes if the end of the file was reached) or a negative error value. 4838 **/ 4839 static ssize_t 4840 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4841 loff_t *ppos) 4842 { 4843 struct lpfc_debug *debug = file->private_data; 4844 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4845 uint32_t ctl_reg_id, i; 4846 char *pbuffer; 4847 int len = 0; 4848 4849 /* This is a user read operation */ 4850 debug->op = LPFC_IDIAG_OP_RD; 4851 4852 if (!debug->buffer) 4853 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4854 if (!debug->buffer) 4855 return 0; 4856 pbuffer = debug->buffer; 4857 4858 if (*ppos) 4859 return 0; 4860 4861 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4862 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4863 else 4864 return 0; 4865 4866 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4867 for (i = 1; i <= LPFC_CTL_MAX; i++) 4868 len = lpfc_idiag_ctlacc_read_reg(phba, 4869 pbuffer, len, i); 4870 else 4871 len = lpfc_idiag_ctlacc_read_reg(phba, 4872 pbuffer, len, ctl_reg_id); 4873 4874 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4875 } 4876 4877 /** 4878 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4879 * @file: The file pointer to read from. 4880 * @buf: The buffer to copy the user data from. 4881 * @nbytes: The number of bytes to get. 4882 * @ppos: The position in the file to start reading from. 4883 * 4884 * This routine get the debugfs idiag command struct from user space and then 4885 * perform the syntax check for port and device control register read (dump) 4886 * or write (set) command accordingly. 4887 * 4888 * It returns the @nbytges passing in from debugfs user space when successful. 4889 * In case of error conditions, it returns proper error code back to the user 4890 * space. 4891 **/ 4892 static ssize_t 4893 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4894 size_t nbytes, loff_t *ppos) 4895 { 4896 struct lpfc_debug *debug = file->private_data; 4897 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4898 uint32_t ctl_reg_id, value, reg_val = 0; 4899 void __iomem *ctl_reg; 4900 int rc; 4901 4902 /* This is a user write operation */ 4903 debug->op = LPFC_IDIAG_OP_WR; 4904 4905 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4906 if (rc < 0) 4907 return rc; 4908 4909 /* Sanity check on command line arguments */ 4910 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4911 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4912 4913 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4914 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4915 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4916 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4917 goto error_out; 4918 if (ctl_reg_id > LPFC_CTL_MAX) 4919 goto error_out; 4920 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4921 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4922 goto error_out; 4923 if ((ctl_reg_id > LPFC_CTL_MAX) && 4924 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4925 goto error_out; 4926 } else 4927 goto error_out; 4928 4929 /* Perform the write access operation */ 4930 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4931 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4932 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4933 switch (ctl_reg_id) { 4934 case LPFC_CTL_PORT_SEM: 4935 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4936 LPFC_CTL_PORT_SEM_OFFSET; 4937 break; 4938 case LPFC_CTL_PORT_STA: 4939 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4940 LPFC_CTL_PORT_STA_OFFSET; 4941 break; 4942 case LPFC_CTL_PORT_CTL: 4943 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4944 LPFC_CTL_PORT_CTL_OFFSET; 4945 break; 4946 case LPFC_CTL_PORT_ER1: 4947 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4948 LPFC_CTL_PORT_ER1_OFFSET; 4949 break; 4950 case LPFC_CTL_PORT_ER2: 4951 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4952 LPFC_CTL_PORT_ER2_OFFSET; 4953 break; 4954 case LPFC_CTL_PDEV_CTL: 4955 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4956 LPFC_CTL_PDEV_CTL_OFFSET; 4957 break; 4958 default: 4959 goto error_out; 4960 } 4961 4962 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4963 reg_val = value; 4964 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4965 reg_val = readl(ctl_reg); 4966 reg_val |= value; 4967 } 4968 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4969 reg_val = readl(ctl_reg); 4970 reg_val &= ~value; 4971 } 4972 writel(reg_val, ctl_reg); 4973 readl(ctl_reg); /* flush */ 4974 } 4975 return nbytes; 4976 4977 error_out: 4978 /* Clean out command structure on command error out */ 4979 memset(&idiag, 0, sizeof(idiag)); 4980 return -EINVAL; 4981 } 4982 4983 /** 4984 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 4985 * @phba: Pointer to HBA context object. 4986 * @pbuffer: Pointer to data buffer. 4987 * 4988 * Description: 4989 * This routine gets the driver mailbox access debugfs setup information. 4990 * 4991 * Returns: 4992 * This function returns the amount of data that was read (this could be less 4993 * than @nbytes if the end of the file was reached) or a negative error value. 4994 **/ 4995 static int 4996 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 4997 { 4998 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 4999 int len = 0; 5000 5001 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5002 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5003 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5004 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5005 5006 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5007 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 5008 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5009 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 5010 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5011 "mbx_word_cnt: %04d\n", mbx_word_cnt); 5012 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5013 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 5014 5015 return len; 5016 } 5017 5018 /** 5019 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 5020 * @file: The file pointer to read from. 5021 * @buf: The buffer to copy the data to. 5022 * @nbytes: The number of bytes to read. 5023 * @ppos: The position in the file to start reading from. 5024 * 5025 * Description: 5026 * This routine reads data from the @phba driver mailbox access debugfs setup 5027 * information. 5028 * 5029 * Returns: 5030 * This function returns the amount of data that was read (this could be less 5031 * than @nbytes if the end of the file was reached) or a negative error value. 5032 **/ 5033 static ssize_t 5034 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 5035 loff_t *ppos) 5036 { 5037 struct lpfc_debug *debug = file->private_data; 5038 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5039 char *pbuffer; 5040 int len = 0; 5041 5042 /* This is a user read operation */ 5043 debug->op = LPFC_IDIAG_OP_RD; 5044 5045 if (!debug->buffer) 5046 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 5047 if (!debug->buffer) 5048 return 0; 5049 pbuffer = debug->buffer; 5050 5051 if (*ppos) 5052 return 0; 5053 5054 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 5055 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 5056 return 0; 5057 5058 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 5059 5060 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5061 } 5062 5063 /** 5064 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 5065 * @file: The file pointer to read from. 5066 * @buf: The buffer to copy the user data from. 5067 * @nbytes: The number of bytes to get. 5068 * @ppos: The position in the file to start reading from. 5069 * 5070 * This routine get the debugfs idiag command struct from user space and then 5071 * perform the syntax check for driver mailbox command (dump) and sets up the 5072 * necessary states in the idiag command struct accordingly. 5073 * 5074 * It returns the @nbytges passing in from debugfs user space when successful. 5075 * In case of error conditions, it returns proper error code back to the user 5076 * space. 5077 **/ 5078 static ssize_t 5079 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 5080 size_t nbytes, loff_t *ppos) 5081 { 5082 struct lpfc_debug *debug = file->private_data; 5083 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5084 int rc; 5085 5086 /* This is a user write operation */ 5087 debug->op = LPFC_IDIAG_OP_WR; 5088 5089 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5090 if (rc < 0) 5091 return rc; 5092 5093 /* Sanity check on command line arguments */ 5094 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5095 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5096 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5097 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5098 5099 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 5100 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 5101 goto error_out; 5102 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 5103 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5104 goto error_out; 5105 if (mbx_word_cnt > sizeof(MAILBOX_t)) 5106 goto error_out; 5107 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 5108 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 5109 goto error_out; 5110 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 5111 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5112 goto error_out; 5113 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 5114 goto error_out; 5115 if (mbx_mbox_cmd != 0x9b) 5116 goto error_out; 5117 } else 5118 goto error_out; 5119 5120 if (mbx_word_cnt == 0) 5121 goto error_out; 5122 if (rc != LPFC_MBX_DMP_ARG) 5123 goto error_out; 5124 if (mbx_mbox_cmd & ~0xff) 5125 goto error_out; 5126 5127 /* condition for stop mailbox dump */ 5128 if (mbx_dump_cnt == 0) 5129 goto reset_out; 5130 5131 return nbytes; 5132 5133 reset_out: 5134 /* Clean out command structure on command error out */ 5135 memset(&idiag, 0, sizeof(idiag)); 5136 return nbytes; 5137 5138 error_out: 5139 /* Clean out command structure on command error out */ 5140 memset(&idiag, 0, sizeof(idiag)); 5141 return -EINVAL; 5142 } 5143 5144 /** 5145 * lpfc_idiag_extacc_avail_get - get the available extents information 5146 * @phba: pointer to lpfc hba data structure. 5147 * @pbuffer: pointer to internal buffer. 5148 * @len: length into the internal buffer data has been copied. 5149 * 5150 * Description: 5151 * This routine is to get the available extent information. 5152 * 5153 * Returns: 5154 * overall length of the data read into the internal buffer. 5155 **/ 5156 static int 5157 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 5158 { 5159 uint16_t ext_cnt, ext_size; 5160 5161 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5162 "\nAvailable Extents Information:\n"); 5163 5164 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5165 "\tPort Available VPI extents: "); 5166 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 5167 &ext_cnt, &ext_size); 5168 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5169 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5170 5171 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5172 "\tPort Available VFI extents: "); 5173 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 5174 &ext_cnt, &ext_size); 5175 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5176 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5177 5178 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5179 "\tPort Available RPI extents: "); 5180 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 5181 &ext_cnt, &ext_size); 5182 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5183 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5184 5185 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5186 "\tPort Available XRI extents: "); 5187 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 5188 &ext_cnt, &ext_size); 5189 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5190 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5191 5192 return len; 5193 } 5194 5195 /** 5196 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 5197 * @phba: pointer to lpfc hba data structure. 5198 * @pbuffer: pointer to internal buffer. 5199 * @len: length into the internal buffer data has been copied. 5200 * 5201 * Description: 5202 * This routine is to get the allocated extent information. 5203 * 5204 * Returns: 5205 * overall length of the data read into the internal buffer. 5206 **/ 5207 static int 5208 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 5209 { 5210 uint16_t ext_cnt, ext_size; 5211 int rc; 5212 5213 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5214 "\nAllocated Extents Information:\n"); 5215 5216 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5217 "\tHost Allocated VPI extents: "); 5218 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 5219 &ext_cnt, &ext_size); 5220 if (!rc) 5221 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5222 "Port %d Extent %3d, Size %3d\n", 5223 phba->brd_no, ext_cnt, ext_size); 5224 else 5225 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5226 "N/A\n"); 5227 5228 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5229 "\tHost Allocated VFI extents: "); 5230 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 5231 &ext_cnt, &ext_size); 5232 if (!rc) 5233 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5234 "Port %d Extent %3d, Size %3d\n", 5235 phba->brd_no, ext_cnt, ext_size); 5236 else 5237 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5238 "N/A\n"); 5239 5240 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5241 "\tHost Allocated RPI extents: "); 5242 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 5243 &ext_cnt, &ext_size); 5244 if (!rc) 5245 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5246 "Port %d Extent %3d, Size %3d\n", 5247 phba->brd_no, ext_cnt, ext_size); 5248 else 5249 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5250 "N/A\n"); 5251 5252 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5253 "\tHost Allocated XRI extents: "); 5254 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 5255 &ext_cnt, &ext_size); 5256 if (!rc) 5257 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5258 "Port %d Extent %3d, Size %3d\n", 5259 phba->brd_no, ext_cnt, ext_size); 5260 else 5261 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5262 "N/A\n"); 5263 5264 return len; 5265 } 5266 5267 /** 5268 * lpfc_idiag_extacc_drivr_get - get driver extent information 5269 * @phba: pointer to lpfc hba data structure. 5270 * @pbuffer: pointer to internal buffer. 5271 * @len: length into the internal buffer data has been copied. 5272 * 5273 * Description: 5274 * This routine is to get the driver extent information. 5275 * 5276 * Returns: 5277 * overall length of the data read into the internal buffer. 5278 **/ 5279 static int 5280 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 5281 { 5282 struct lpfc_rsrc_blks *rsrc_blks; 5283 int index; 5284 5285 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5286 "\nDriver Extents Information:\n"); 5287 5288 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5289 "\tVPI extents:\n"); 5290 index = 0; 5291 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 5292 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5293 "\t\tBlock %3d: Start %4d, Count %4d\n", 5294 index, rsrc_blks->rsrc_start, 5295 rsrc_blks->rsrc_size); 5296 index++; 5297 } 5298 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5299 "\tVFI extents:\n"); 5300 index = 0; 5301 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 5302 list) { 5303 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5304 "\t\tBlock %3d: Start %4d, Count %4d\n", 5305 index, rsrc_blks->rsrc_start, 5306 rsrc_blks->rsrc_size); 5307 index++; 5308 } 5309 5310 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5311 "\tRPI extents:\n"); 5312 index = 0; 5313 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 5314 list) { 5315 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5316 "\t\tBlock %3d: Start %4d, Count %4d\n", 5317 index, rsrc_blks->rsrc_start, 5318 rsrc_blks->rsrc_size); 5319 index++; 5320 } 5321 5322 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5323 "\tXRI extents:\n"); 5324 index = 0; 5325 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 5326 list) { 5327 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5328 "\t\tBlock %3d: Start %4d, Count %4d\n", 5329 index, rsrc_blks->rsrc_start, 5330 rsrc_blks->rsrc_size); 5331 index++; 5332 } 5333 5334 return len; 5335 } 5336 5337 /** 5338 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 5339 * @file: The file pointer to read from. 5340 * @buf: The buffer to copy the user data from. 5341 * @nbytes: The number of bytes to get. 5342 * @ppos: The position in the file to start reading from. 5343 * 5344 * This routine get the debugfs idiag command struct from user space and then 5345 * perform the syntax check for extent information access commands and sets 5346 * up the necessary states in the idiag command struct accordingly. 5347 * 5348 * It returns the @nbytges passing in from debugfs user space when successful. 5349 * In case of error conditions, it returns proper error code back to the user 5350 * space. 5351 **/ 5352 static ssize_t 5353 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 5354 size_t nbytes, loff_t *ppos) 5355 { 5356 struct lpfc_debug *debug = file->private_data; 5357 uint32_t ext_map; 5358 int rc; 5359 5360 /* This is a user write operation */ 5361 debug->op = LPFC_IDIAG_OP_WR; 5362 5363 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5364 if (rc < 0) 5365 return rc; 5366 5367 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5368 5369 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5370 goto error_out; 5371 if (rc != LPFC_EXT_ACC_CMD_ARG) 5372 goto error_out; 5373 if (!(ext_map & LPFC_EXT_ACC_ALL)) 5374 goto error_out; 5375 5376 return nbytes; 5377 error_out: 5378 /* Clean out command structure on command error out */ 5379 memset(&idiag, 0, sizeof(idiag)); 5380 return -EINVAL; 5381 } 5382 5383 /** 5384 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 5385 * @file: The file pointer to read from. 5386 * @buf: The buffer to copy the data to. 5387 * @nbytes: The number of bytes to read. 5388 * @ppos: The position in the file to start reading from. 5389 * 5390 * Description: 5391 * This routine reads data from the proper extent information according to 5392 * the idiag command, and copies to user @buf. 5393 * 5394 * Returns: 5395 * This function returns the amount of data that was read (this could be less 5396 * than @nbytes if the end of the file was reached) or a negative error value. 5397 **/ 5398 static ssize_t 5399 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 5400 loff_t *ppos) 5401 { 5402 struct lpfc_debug *debug = file->private_data; 5403 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5404 char *pbuffer; 5405 uint32_t ext_map; 5406 int len = 0; 5407 5408 /* This is a user read operation */ 5409 debug->op = LPFC_IDIAG_OP_RD; 5410 5411 if (!debug->buffer) 5412 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 5413 if (!debug->buffer) 5414 return 0; 5415 pbuffer = debug->buffer; 5416 if (*ppos) 5417 return 0; 5418 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5419 return 0; 5420 5421 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5422 if (ext_map & LPFC_EXT_ACC_AVAIL) 5423 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 5424 if (ext_map & LPFC_EXT_ACC_ALLOC) 5425 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 5426 if (ext_map & LPFC_EXT_ACC_DRIVR) 5427 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 5428 5429 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5430 } 5431 5432 static int 5433 lpfc_cgn_buffer_open(struct inode *inode, struct file *file) 5434 { 5435 struct lpfc_debug *debug; 5436 int rc = -ENOMEM; 5437 5438 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 5439 if (!debug) 5440 goto out; 5441 5442 debug->buffer = vmalloc(LPFC_CGN_BUF_SIZE); 5443 if (!debug->buffer) { 5444 kfree(debug); 5445 goto out; 5446 } 5447 5448 debug->i_private = inode->i_private; 5449 file->private_data = debug; 5450 5451 rc = 0; 5452 out: 5453 return rc; 5454 } 5455 5456 static ssize_t 5457 lpfc_cgn_buffer_read(struct file *file, char __user *buf, size_t nbytes, 5458 loff_t *ppos) 5459 { 5460 struct lpfc_debug *debug = file->private_data; 5461 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5462 char *buffer = debug->buffer; 5463 uint32_t *ptr; 5464 int cnt, len = 0; 5465 5466 if (!phba->sli4_hba.pc_sli4_params.mi_ver || !phba->cgn_i) { 5467 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5468 "Congestion Mgmt is not supported\n"); 5469 goto out; 5470 } 5471 ptr = (uint32_t *)phba->cgn_i->virt; 5472 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5473 "Congestion Buffer Header\n"); 5474 /* Dump the first 32 bytes */ 5475 cnt = 32; 5476 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5477 "000: %08x %08x %08x %08x %08x %08x %08x %08x\n", 5478 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3), 5479 *(ptr + 4), *(ptr + 5), *(ptr + 6), *(ptr + 7)); 5480 ptr += 8; 5481 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5482 "Congestion Buffer Data\n"); 5483 while (cnt < sizeof(struct lpfc_cgn_info)) { 5484 if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { 5485 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5486 "Truncated . . .\n"); 5487 goto out; 5488 } 5489 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5490 "%03x: %08x %08x %08x %08x " 5491 "%08x %08x %08x %08x\n", 5492 cnt, *ptr, *(ptr + 1), *(ptr + 2), 5493 *(ptr + 3), *(ptr + 4), *(ptr + 5), 5494 *(ptr + 6), *(ptr + 7)); 5495 cnt += 32; 5496 ptr += 8; 5497 } 5498 if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { 5499 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5500 "Truncated . . .\n"); 5501 goto out; 5502 } 5503 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5504 "Parameter Data\n"); 5505 ptr = (uint32_t *)&phba->cgn_p; 5506 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5507 "%08x %08x %08x %08x\n", 5508 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3)); 5509 out: 5510 return simple_read_from_buffer(buf, nbytes, ppos, buffer, len); 5511 } 5512 5513 static int 5514 lpfc_cgn_buffer_release(struct inode *inode, struct file *file) 5515 { 5516 struct lpfc_debug *debug = file->private_data; 5517 5518 vfree(debug->buffer); 5519 kfree(debug); 5520 5521 return 0; 5522 } 5523 5524 static int 5525 lpfc_rx_monitor_open(struct inode *inode, struct file *file) 5526 { 5527 struct lpfc_rx_monitor_debug *debug; 5528 int rc = -ENOMEM; 5529 5530 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 5531 if (!debug) 5532 goto out; 5533 5534 debug->buffer = vmalloc(MAX_DEBUGFS_RX_TABLE_SIZE); 5535 if (!debug->buffer) { 5536 kfree(debug); 5537 goto out; 5538 } 5539 5540 debug->i_private = inode->i_private; 5541 file->private_data = debug; 5542 5543 rc = 0; 5544 out: 5545 return rc; 5546 } 5547 5548 static ssize_t 5549 lpfc_rx_monitor_read(struct file *file, char __user *buf, size_t nbytes, 5550 loff_t *ppos) 5551 { 5552 struct lpfc_rx_monitor_debug *debug = file->private_data; 5553 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5554 char *buffer = debug->buffer; 5555 struct rxtable_entry *entry; 5556 int i, len = 0, head, tail, last, start; 5557 5558 head = atomic_read(&phba->rxtable_idx_head); 5559 while (head == LPFC_RXMONITOR_TABLE_IN_USE) { 5560 /* Table is getting updated */ 5561 msleep(20); 5562 head = atomic_read(&phba->rxtable_idx_head); 5563 } 5564 5565 tail = atomic_xchg(&phba->rxtable_idx_tail, head); 5566 if (!phba->rxtable || head == tail) { 5567 len += scnprintf(buffer + len, MAX_DEBUGFS_RX_TABLE_SIZE - len, 5568 "Rxtable is empty\n"); 5569 goto out; 5570 } 5571 last = (head > tail) ? head : LPFC_MAX_RXMONITOR_ENTRY; 5572 start = tail; 5573 5574 len += scnprintf(buffer + len, MAX_DEBUGFS_RX_TABLE_SIZE - len, 5575 " MaxBPI Tot_Data_CMF Tot_Data_Cmd " 5576 "Tot_Data_Cmpl Lat(us) Avg_IO Max_IO " 5577 "Bsy IO_cnt Info BWutil(ms)\n"); 5578 get_table: 5579 for (i = start; i < last; i++) { 5580 entry = &phba->rxtable[i]; 5581 len += scnprintf(buffer + len, MAX_DEBUGFS_RX_TABLE_SIZE - len, 5582 "%3d:%12lld %12lld %12lld %12lld " 5583 "%7lldus %8lld %7lld " 5584 "%2d %4d %2d %2d(%2d)\n", 5585 i, entry->max_bytes_per_interval, 5586 entry->cmf_bytes, 5587 entry->total_bytes, 5588 entry->rcv_bytes, 5589 entry->avg_io_latency, 5590 entry->avg_io_size, 5591 entry->max_read_cnt, 5592 entry->cmf_busy, 5593 entry->io_cnt, 5594 entry->cmf_info, 5595 entry->timer_utilization, 5596 entry->timer_interval); 5597 } 5598 5599 if (head != last) { 5600 start = 0; 5601 last = head; 5602 goto get_table; 5603 } 5604 out: 5605 return simple_read_from_buffer(buf, nbytes, ppos, buffer, len); 5606 } 5607 5608 static int 5609 lpfc_rx_monitor_release(struct inode *inode, struct file *file) 5610 { 5611 struct lpfc_rx_monitor_debug *debug = file->private_data; 5612 5613 vfree(debug->buffer); 5614 kfree(debug); 5615 5616 return 0; 5617 } 5618 5619 #undef lpfc_debugfs_op_disc_trc 5620 static const struct file_operations lpfc_debugfs_op_disc_trc = { 5621 .owner = THIS_MODULE, 5622 .open = lpfc_debugfs_disc_trc_open, 5623 .llseek = lpfc_debugfs_lseek, 5624 .read = lpfc_debugfs_read, 5625 .release = lpfc_debugfs_release, 5626 }; 5627 5628 #undef lpfc_debugfs_op_nodelist 5629 static const struct file_operations lpfc_debugfs_op_nodelist = { 5630 .owner = THIS_MODULE, 5631 .open = lpfc_debugfs_nodelist_open, 5632 .llseek = lpfc_debugfs_lseek, 5633 .read = lpfc_debugfs_read, 5634 .release = lpfc_debugfs_release, 5635 }; 5636 5637 #undef lpfc_debugfs_op_multixripools 5638 static const struct file_operations lpfc_debugfs_op_multixripools = { 5639 .owner = THIS_MODULE, 5640 .open = lpfc_debugfs_multixripools_open, 5641 .llseek = lpfc_debugfs_lseek, 5642 .read = lpfc_debugfs_read, 5643 .write = lpfc_debugfs_multixripools_write, 5644 .release = lpfc_debugfs_release, 5645 }; 5646 5647 #undef lpfc_debugfs_op_hbqinfo 5648 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 5649 .owner = THIS_MODULE, 5650 .open = lpfc_debugfs_hbqinfo_open, 5651 .llseek = lpfc_debugfs_lseek, 5652 .read = lpfc_debugfs_read, 5653 .release = lpfc_debugfs_release, 5654 }; 5655 5656 #ifdef LPFC_HDWQ_LOCK_STAT 5657 #undef lpfc_debugfs_op_lockstat 5658 static const struct file_operations lpfc_debugfs_op_lockstat = { 5659 .owner = THIS_MODULE, 5660 .open = lpfc_debugfs_lockstat_open, 5661 .llseek = lpfc_debugfs_lseek, 5662 .read = lpfc_debugfs_read, 5663 .write = lpfc_debugfs_lockstat_write, 5664 .release = lpfc_debugfs_release, 5665 }; 5666 #endif 5667 5668 #undef lpfc_debugfs_ras_log 5669 static const struct file_operations lpfc_debugfs_ras_log = { 5670 .owner = THIS_MODULE, 5671 .open = lpfc_debugfs_ras_log_open, 5672 .llseek = lpfc_debugfs_lseek, 5673 .read = lpfc_debugfs_read, 5674 .release = lpfc_debugfs_ras_log_release, 5675 }; 5676 5677 #undef lpfc_debugfs_op_dumpHBASlim 5678 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 5679 .owner = THIS_MODULE, 5680 .open = lpfc_debugfs_dumpHBASlim_open, 5681 .llseek = lpfc_debugfs_lseek, 5682 .read = lpfc_debugfs_read, 5683 .release = lpfc_debugfs_release, 5684 }; 5685 5686 #undef lpfc_debugfs_op_dumpHostSlim 5687 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 5688 .owner = THIS_MODULE, 5689 .open = lpfc_debugfs_dumpHostSlim_open, 5690 .llseek = lpfc_debugfs_lseek, 5691 .read = lpfc_debugfs_read, 5692 .release = lpfc_debugfs_release, 5693 }; 5694 5695 #undef lpfc_debugfs_op_nvmestat 5696 static const struct file_operations lpfc_debugfs_op_nvmestat = { 5697 .owner = THIS_MODULE, 5698 .open = lpfc_debugfs_nvmestat_open, 5699 .llseek = lpfc_debugfs_lseek, 5700 .read = lpfc_debugfs_read, 5701 .write = lpfc_debugfs_nvmestat_write, 5702 .release = lpfc_debugfs_release, 5703 }; 5704 5705 #undef lpfc_debugfs_op_scsistat 5706 static const struct file_operations lpfc_debugfs_op_scsistat = { 5707 .owner = THIS_MODULE, 5708 .open = lpfc_debugfs_scsistat_open, 5709 .llseek = lpfc_debugfs_lseek, 5710 .read = lpfc_debugfs_read, 5711 .write = lpfc_debugfs_scsistat_write, 5712 .release = lpfc_debugfs_release, 5713 }; 5714 5715 #undef lpfc_debugfs_op_ioktime 5716 static const struct file_operations lpfc_debugfs_op_ioktime = { 5717 .owner = THIS_MODULE, 5718 .open = lpfc_debugfs_ioktime_open, 5719 .llseek = lpfc_debugfs_lseek, 5720 .read = lpfc_debugfs_read, 5721 .write = lpfc_debugfs_ioktime_write, 5722 .release = lpfc_debugfs_release, 5723 }; 5724 5725 #undef lpfc_debugfs_op_nvmeio_trc 5726 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 5727 .owner = THIS_MODULE, 5728 .open = lpfc_debugfs_nvmeio_trc_open, 5729 .llseek = lpfc_debugfs_lseek, 5730 .read = lpfc_debugfs_read, 5731 .write = lpfc_debugfs_nvmeio_trc_write, 5732 .release = lpfc_debugfs_release, 5733 }; 5734 5735 #undef lpfc_debugfs_op_hdwqstat 5736 static const struct file_operations lpfc_debugfs_op_hdwqstat = { 5737 .owner = THIS_MODULE, 5738 .open = lpfc_debugfs_hdwqstat_open, 5739 .llseek = lpfc_debugfs_lseek, 5740 .read = lpfc_debugfs_read, 5741 .write = lpfc_debugfs_hdwqstat_write, 5742 .release = lpfc_debugfs_release, 5743 }; 5744 5745 #undef lpfc_debugfs_op_dif_err 5746 static const struct file_operations lpfc_debugfs_op_dif_err = { 5747 .owner = THIS_MODULE, 5748 .open = simple_open, 5749 .llseek = lpfc_debugfs_lseek, 5750 .read = lpfc_debugfs_dif_err_read, 5751 .write = lpfc_debugfs_dif_err_write, 5752 .release = lpfc_debugfs_dif_err_release, 5753 }; 5754 5755 #undef lpfc_debugfs_op_slow_ring_trc 5756 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 5757 .owner = THIS_MODULE, 5758 .open = lpfc_debugfs_slow_ring_trc_open, 5759 .llseek = lpfc_debugfs_lseek, 5760 .read = lpfc_debugfs_read, 5761 .release = lpfc_debugfs_release, 5762 }; 5763 5764 static struct dentry *lpfc_debugfs_root = NULL; 5765 static atomic_t lpfc_debugfs_hba_count; 5766 5767 /* 5768 * File operations for the iDiag debugfs 5769 */ 5770 #undef lpfc_idiag_op_pciCfg 5771 static const struct file_operations lpfc_idiag_op_pciCfg = { 5772 .owner = THIS_MODULE, 5773 .open = lpfc_idiag_open, 5774 .llseek = lpfc_debugfs_lseek, 5775 .read = lpfc_idiag_pcicfg_read, 5776 .write = lpfc_idiag_pcicfg_write, 5777 .release = lpfc_idiag_cmd_release, 5778 }; 5779 5780 #undef lpfc_idiag_op_barAcc 5781 static const struct file_operations lpfc_idiag_op_barAcc = { 5782 .owner = THIS_MODULE, 5783 .open = lpfc_idiag_open, 5784 .llseek = lpfc_debugfs_lseek, 5785 .read = lpfc_idiag_baracc_read, 5786 .write = lpfc_idiag_baracc_write, 5787 .release = lpfc_idiag_cmd_release, 5788 }; 5789 5790 #undef lpfc_idiag_op_queInfo 5791 static const struct file_operations lpfc_idiag_op_queInfo = { 5792 .owner = THIS_MODULE, 5793 .open = lpfc_idiag_open, 5794 .read = lpfc_idiag_queinfo_read, 5795 .release = lpfc_idiag_release, 5796 }; 5797 5798 #undef lpfc_idiag_op_queAcc 5799 static const struct file_operations lpfc_idiag_op_queAcc = { 5800 .owner = THIS_MODULE, 5801 .open = lpfc_idiag_open, 5802 .llseek = lpfc_debugfs_lseek, 5803 .read = lpfc_idiag_queacc_read, 5804 .write = lpfc_idiag_queacc_write, 5805 .release = lpfc_idiag_cmd_release, 5806 }; 5807 5808 #undef lpfc_idiag_op_drbAcc 5809 static const struct file_operations lpfc_idiag_op_drbAcc = { 5810 .owner = THIS_MODULE, 5811 .open = lpfc_idiag_open, 5812 .llseek = lpfc_debugfs_lseek, 5813 .read = lpfc_idiag_drbacc_read, 5814 .write = lpfc_idiag_drbacc_write, 5815 .release = lpfc_idiag_cmd_release, 5816 }; 5817 5818 #undef lpfc_idiag_op_ctlAcc 5819 static const struct file_operations lpfc_idiag_op_ctlAcc = { 5820 .owner = THIS_MODULE, 5821 .open = lpfc_idiag_open, 5822 .llseek = lpfc_debugfs_lseek, 5823 .read = lpfc_idiag_ctlacc_read, 5824 .write = lpfc_idiag_ctlacc_write, 5825 .release = lpfc_idiag_cmd_release, 5826 }; 5827 5828 #undef lpfc_idiag_op_mbxAcc 5829 static const struct file_operations lpfc_idiag_op_mbxAcc = { 5830 .owner = THIS_MODULE, 5831 .open = lpfc_idiag_open, 5832 .llseek = lpfc_debugfs_lseek, 5833 .read = lpfc_idiag_mbxacc_read, 5834 .write = lpfc_idiag_mbxacc_write, 5835 .release = lpfc_idiag_cmd_release, 5836 }; 5837 5838 #undef lpfc_idiag_op_extAcc 5839 static const struct file_operations lpfc_idiag_op_extAcc = { 5840 .owner = THIS_MODULE, 5841 .open = lpfc_idiag_open, 5842 .llseek = lpfc_debugfs_lseek, 5843 .read = lpfc_idiag_extacc_read, 5844 .write = lpfc_idiag_extacc_write, 5845 .release = lpfc_idiag_cmd_release, 5846 }; 5847 #undef lpfc_cgn_buffer_op 5848 static const struct file_operations lpfc_cgn_buffer_op = { 5849 .owner = THIS_MODULE, 5850 .open = lpfc_cgn_buffer_open, 5851 .llseek = lpfc_debugfs_lseek, 5852 .read = lpfc_cgn_buffer_read, 5853 .release = lpfc_cgn_buffer_release, 5854 }; 5855 5856 #undef lpfc_rx_monitor_op 5857 static const struct file_operations lpfc_rx_monitor_op = { 5858 .owner = THIS_MODULE, 5859 .open = lpfc_rx_monitor_open, 5860 .llseek = lpfc_debugfs_lseek, 5861 .read = lpfc_rx_monitor_read, 5862 .release = lpfc_rx_monitor_release, 5863 }; 5864 #endif 5865 5866 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 5867 * @phba: Pointer to HBA context object. 5868 * @dmabuf: Pointer to a DMA buffer descriptor. 5869 * 5870 * Description: 5871 * This routine dump a bsg pass-through non-embedded mailbox command with 5872 * external buffer. 5873 **/ 5874 void 5875 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 5876 enum mbox_type mbox_tp, enum dma_type dma_tp, 5877 enum sta_type sta_tp, 5878 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 5879 { 5880 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5881 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 5882 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5883 int len = 0; 5884 uint32_t do_dump = 0; 5885 uint32_t *pword; 5886 uint32_t i; 5887 5888 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 5889 return; 5890 5891 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5892 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5893 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5894 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5895 5896 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 5897 (*mbx_dump_cnt == 0) || 5898 (*mbx_word_cnt == 0)) 5899 return; 5900 5901 if (*mbx_mbox_cmd != 0x9B) 5902 return; 5903 5904 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 5905 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 5906 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 5907 pr_err("\nRead mbox command (x%x), " 5908 "nemb:0x%x, extbuf_cnt:%d:\n", 5909 sta_tp, nemb_tp, ext_buf); 5910 } 5911 } 5912 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5913 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5914 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5915 pr_err("\nRead mbox buffer (x%x), " 5916 "nemb:0x%x, extbuf_seq:%d:\n", 5917 sta_tp, nemb_tp, ext_buf); 5918 } 5919 } 5920 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5921 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5922 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5923 pr_err("\nWrite mbox command (x%x), " 5924 "nemb:0x%x, extbuf_cnt:%d:\n", 5925 sta_tp, nemb_tp, ext_buf); 5926 } 5927 } 5928 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5929 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5930 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5931 pr_err("\nWrite mbox buffer (x%x), " 5932 "nemb:0x%x, extbuf_seq:%d:\n", 5933 sta_tp, nemb_tp, ext_buf); 5934 } 5935 } 5936 5937 /* dump buffer content */ 5938 if (do_dump) { 5939 pword = (uint32_t *)dmabuf->virt; 5940 for (i = 0; i < *mbx_word_cnt; i++) { 5941 if (!(i % 8)) { 5942 if (i != 0) 5943 pr_err("%s\n", line_buf); 5944 len = 0; 5945 len += scnprintf(line_buf+len, 5946 LPFC_MBX_ACC_LBUF_SZ-len, 5947 "%03d: ", i); 5948 } 5949 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5950 "%08x ", (uint32_t)*pword); 5951 pword++; 5952 } 5953 if ((i - 1) % 8) 5954 pr_err("%s\n", line_buf); 5955 (*mbx_dump_cnt)--; 5956 } 5957 5958 /* Clean out command structure on reaching dump count */ 5959 if (*mbx_dump_cnt == 0) 5960 memset(&idiag, 0, sizeof(idiag)); 5961 return; 5962 #endif 5963 } 5964 5965 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5966 * @phba: Pointer to HBA context object. 5967 * @dmabuf: Pointer to a DMA buffer descriptor. 5968 * 5969 * Description: 5970 * This routine dump a pass-through non-embedded mailbox command from issue 5971 * mailbox command. 5972 **/ 5973 void 5974 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5975 { 5976 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5977 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5978 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5979 int len = 0; 5980 uint32_t *pword; 5981 uint8_t *pbyte; 5982 uint32_t i, j; 5983 5984 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5985 return; 5986 5987 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5988 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5989 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5990 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5991 5992 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5993 (*mbx_dump_cnt == 0) || 5994 (*mbx_word_cnt == 0)) 5995 return; 5996 5997 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5998 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5999 return; 6000 6001 /* dump buffer content */ 6002 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 6003 pr_err("Mailbox command:0x%x dump by word:\n", 6004 pmbox->mbxCommand); 6005 pword = (uint32_t *)pmbox; 6006 for (i = 0; i < *mbx_word_cnt; i++) { 6007 if (!(i % 8)) { 6008 if (i != 0) 6009 pr_err("%s\n", line_buf); 6010 len = 0; 6011 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 6012 len += scnprintf(line_buf+len, 6013 LPFC_MBX_ACC_LBUF_SZ-len, 6014 "%03d: ", i); 6015 } 6016 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 6017 "%08x ", 6018 ((uint32_t)*pword) & 0xffffffff); 6019 pword++; 6020 } 6021 if ((i - 1) % 8) 6022 pr_err("%s\n", line_buf); 6023 pr_err("\n"); 6024 } 6025 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 6026 pr_err("Mailbox command:0x%x dump by byte:\n", 6027 pmbox->mbxCommand); 6028 pbyte = (uint8_t *)pmbox; 6029 for (i = 0; i < *mbx_word_cnt; i++) { 6030 if (!(i % 8)) { 6031 if (i != 0) 6032 pr_err("%s\n", line_buf); 6033 len = 0; 6034 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 6035 len += scnprintf(line_buf+len, 6036 LPFC_MBX_ACC_LBUF_SZ-len, 6037 "%03d: ", i); 6038 } 6039 for (j = 0; j < 4; j++) { 6040 len += scnprintf(line_buf+len, 6041 LPFC_MBX_ACC_LBUF_SZ-len, 6042 "%02x", 6043 ((uint8_t)*pbyte) & 0xff); 6044 pbyte++; 6045 } 6046 len += scnprintf(line_buf+len, 6047 LPFC_MBX_ACC_LBUF_SZ-len, " "); 6048 } 6049 if ((i - 1) % 8) 6050 pr_err("%s\n", line_buf); 6051 pr_err("\n"); 6052 } 6053 (*mbx_dump_cnt)--; 6054 6055 /* Clean out command structure on reaching dump count */ 6056 if (*mbx_dump_cnt == 0) 6057 memset(&idiag, 0, sizeof(idiag)); 6058 return; 6059 #endif 6060 } 6061 6062 /** 6063 * lpfc_debugfs_initialize - Initialize debugfs for a vport 6064 * @vport: The vport pointer to initialize. 6065 * 6066 * Description: 6067 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 6068 * If not already created, this routine will create the lpfc directory, and 6069 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 6070 * also create each file used to access lpfc specific debugfs information. 6071 **/ 6072 inline void 6073 lpfc_debugfs_initialize(struct lpfc_vport *vport) 6074 { 6075 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6076 struct lpfc_hba *phba = vport->phba; 6077 char name[64]; 6078 uint32_t num, i; 6079 bool pport_setup = false; 6080 6081 if (!lpfc_debugfs_enable) 6082 return; 6083 6084 /* Setup lpfc root directory */ 6085 if (!lpfc_debugfs_root) { 6086 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 6087 atomic_set(&lpfc_debugfs_hba_count, 0); 6088 } 6089 if (!lpfc_debugfs_start_time) 6090 lpfc_debugfs_start_time = jiffies; 6091 6092 /* Setup funcX directory for specific HBA PCI function */ 6093 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 6094 if (!phba->hba_debugfs_root) { 6095 pport_setup = true; 6096 phba->hba_debugfs_root = 6097 debugfs_create_dir(name, lpfc_debugfs_root); 6098 atomic_inc(&lpfc_debugfs_hba_count); 6099 atomic_set(&phba->debugfs_vport_count, 0); 6100 6101 /* Multi-XRI pools */ 6102 snprintf(name, sizeof(name), "multixripools"); 6103 phba->debug_multixri_pools = 6104 debugfs_create_file(name, S_IFREG | 0644, 6105 phba->hba_debugfs_root, 6106 phba, 6107 &lpfc_debugfs_op_multixripools); 6108 if (!phba->debug_multixri_pools) { 6109 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6110 "0527 Cannot create debugfs multixripools\n"); 6111 goto debug_failed; 6112 } 6113 6114 /* Congestion Info Buffer */ 6115 scnprintf(name, sizeof(name), "cgn_buffer"); 6116 phba->debug_cgn_buffer = 6117 debugfs_create_file(name, S_IFREG | 0644, 6118 phba->hba_debugfs_root, 6119 phba, &lpfc_cgn_buffer_op); 6120 if (!phba->debug_cgn_buffer) { 6121 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6122 "6527 Cannot create debugfs " 6123 "cgn_buffer\n"); 6124 goto debug_failed; 6125 } 6126 6127 /* RX Monitor */ 6128 scnprintf(name, sizeof(name), "rx_monitor"); 6129 phba->debug_rx_monitor = 6130 debugfs_create_file(name, S_IFREG | 0644, 6131 phba->hba_debugfs_root, 6132 phba, &lpfc_rx_monitor_op); 6133 if (!phba->debug_rx_monitor) { 6134 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6135 "6528 Cannot create debugfs " 6136 "rx_monitor\n"); 6137 goto debug_failed; 6138 } 6139 6140 /* RAS log */ 6141 snprintf(name, sizeof(name), "ras_log"); 6142 phba->debug_ras_log = 6143 debugfs_create_file(name, 0644, 6144 phba->hba_debugfs_root, 6145 phba, &lpfc_debugfs_ras_log); 6146 if (!phba->debug_ras_log) { 6147 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6148 "6148 Cannot create debugfs" 6149 " ras_log\n"); 6150 goto debug_failed; 6151 } 6152 6153 /* Setup hbqinfo */ 6154 snprintf(name, sizeof(name), "hbqinfo"); 6155 phba->debug_hbqinfo = 6156 debugfs_create_file(name, S_IFREG | 0644, 6157 phba->hba_debugfs_root, 6158 phba, &lpfc_debugfs_op_hbqinfo); 6159 6160 #ifdef LPFC_HDWQ_LOCK_STAT 6161 /* Setup lockstat */ 6162 snprintf(name, sizeof(name), "lockstat"); 6163 phba->debug_lockstat = 6164 debugfs_create_file(name, S_IFREG | 0644, 6165 phba->hba_debugfs_root, 6166 phba, &lpfc_debugfs_op_lockstat); 6167 if (!phba->debug_lockstat) { 6168 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6169 "4610 Can't create debugfs lockstat\n"); 6170 goto debug_failed; 6171 } 6172 #endif 6173 6174 /* Setup dumpHBASlim */ 6175 if (phba->sli_rev < LPFC_SLI_REV4) { 6176 snprintf(name, sizeof(name), "dumpHBASlim"); 6177 phba->debug_dumpHBASlim = 6178 debugfs_create_file(name, 6179 S_IFREG|S_IRUGO|S_IWUSR, 6180 phba->hba_debugfs_root, 6181 phba, &lpfc_debugfs_op_dumpHBASlim); 6182 } else 6183 phba->debug_dumpHBASlim = NULL; 6184 6185 /* Setup dumpHostSlim */ 6186 if (phba->sli_rev < LPFC_SLI_REV4) { 6187 snprintf(name, sizeof(name), "dumpHostSlim"); 6188 phba->debug_dumpHostSlim = 6189 debugfs_create_file(name, 6190 S_IFREG|S_IRUGO|S_IWUSR, 6191 phba->hba_debugfs_root, 6192 phba, &lpfc_debugfs_op_dumpHostSlim); 6193 } else 6194 phba->debug_dumpHostSlim = NULL; 6195 6196 /* Setup DIF Error Injections */ 6197 snprintf(name, sizeof(name), "InjErrLBA"); 6198 phba->debug_InjErrLBA = 6199 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6200 phba->hba_debugfs_root, 6201 phba, &lpfc_debugfs_op_dif_err); 6202 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 6203 6204 snprintf(name, sizeof(name), "InjErrNPortID"); 6205 phba->debug_InjErrNPortID = 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), "InjErrWWPN"); 6211 phba->debug_InjErrWWPN = 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 snprintf(name, sizeof(name), "writeGuardInjErr"); 6217 phba->debug_writeGuard = 6218 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6219 phba->hba_debugfs_root, 6220 phba, &lpfc_debugfs_op_dif_err); 6221 6222 snprintf(name, sizeof(name), "writeAppInjErr"); 6223 phba->debug_writeApp = 6224 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6225 phba->hba_debugfs_root, 6226 phba, &lpfc_debugfs_op_dif_err); 6227 6228 snprintf(name, sizeof(name), "writeRefInjErr"); 6229 phba->debug_writeRef = 6230 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6231 phba->hba_debugfs_root, 6232 phba, &lpfc_debugfs_op_dif_err); 6233 6234 snprintf(name, sizeof(name), "readGuardInjErr"); 6235 phba->debug_readGuard = 6236 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6237 phba->hba_debugfs_root, 6238 phba, &lpfc_debugfs_op_dif_err); 6239 6240 snprintf(name, sizeof(name), "readAppInjErr"); 6241 phba->debug_readApp = 6242 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6243 phba->hba_debugfs_root, 6244 phba, &lpfc_debugfs_op_dif_err); 6245 6246 snprintf(name, sizeof(name), "readRefInjErr"); 6247 phba->debug_readRef = 6248 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6249 phba->hba_debugfs_root, 6250 phba, &lpfc_debugfs_op_dif_err); 6251 6252 /* Setup slow ring trace */ 6253 if (lpfc_debugfs_max_slow_ring_trc) { 6254 num = lpfc_debugfs_max_slow_ring_trc - 1; 6255 if (num & lpfc_debugfs_max_slow_ring_trc) { 6256 /* Change to be a power of 2 */ 6257 num = lpfc_debugfs_max_slow_ring_trc; 6258 i = 0; 6259 while (num > 1) { 6260 num = num >> 1; 6261 i++; 6262 } 6263 lpfc_debugfs_max_slow_ring_trc = (1 << i); 6264 pr_err("lpfc_debugfs_max_disc_trc changed to " 6265 "%d\n", lpfc_debugfs_max_disc_trc); 6266 } 6267 } 6268 6269 snprintf(name, sizeof(name), "slow_ring_trace"); 6270 phba->debug_slow_ring_trc = 6271 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6272 phba->hba_debugfs_root, 6273 phba, &lpfc_debugfs_op_slow_ring_trc); 6274 if (!phba->slow_ring_trc) { 6275 phba->slow_ring_trc = kmalloc( 6276 (sizeof(struct lpfc_debugfs_trc) * 6277 lpfc_debugfs_max_slow_ring_trc), 6278 GFP_KERNEL); 6279 if (!phba->slow_ring_trc) { 6280 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6281 "0416 Cannot create debugfs " 6282 "slow_ring buffer\n"); 6283 goto debug_failed; 6284 } 6285 atomic_set(&phba->slow_ring_trc_cnt, 0); 6286 memset(phba->slow_ring_trc, 0, 6287 (sizeof(struct lpfc_debugfs_trc) * 6288 lpfc_debugfs_max_slow_ring_trc)); 6289 } 6290 6291 snprintf(name, sizeof(name), "nvmeio_trc"); 6292 phba->debug_nvmeio_trc = 6293 debugfs_create_file(name, 0644, 6294 phba->hba_debugfs_root, 6295 phba, &lpfc_debugfs_op_nvmeio_trc); 6296 6297 atomic_set(&phba->nvmeio_trc_cnt, 0); 6298 if (lpfc_debugfs_max_nvmeio_trc) { 6299 num = lpfc_debugfs_max_nvmeio_trc - 1; 6300 if (num & lpfc_debugfs_max_disc_trc) { 6301 /* Change to be a power of 2 */ 6302 num = lpfc_debugfs_max_nvmeio_trc; 6303 i = 0; 6304 while (num > 1) { 6305 num = num >> 1; 6306 i++; 6307 } 6308 lpfc_debugfs_max_nvmeio_trc = (1 << i); 6309 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6310 "0575 lpfc_debugfs_max_nvmeio_trc " 6311 "changed to %d\n", 6312 lpfc_debugfs_max_nvmeio_trc); 6313 } 6314 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 6315 6316 /* Allocate trace buffer and initialize */ 6317 phba->nvmeio_trc = kzalloc( 6318 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 6319 phba->nvmeio_trc_size), GFP_KERNEL); 6320 6321 if (!phba->nvmeio_trc) { 6322 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6323 "0576 Cannot create debugfs " 6324 "nvmeio_trc buffer\n"); 6325 goto nvmeio_off; 6326 } 6327 phba->nvmeio_trc_on = 1; 6328 phba->nvmeio_trc_output_idx = 0; 6329 phba->nvmeio_trc = NULL; 6330 } else { 6331 nvmeio_off: 6332 phba->nvmeio_trc_size = 0; 6333 phba->nvmeio_trc_on = 0; 6334 phba->nvmeio_trc_output_idx = 0; 6335 phba->nvmeio_trc = NULL; 6336 } 6337 } 6338 6339 snprintf(name, sizeof(name), "vport%d", vport->vpi); 6340 if (!vport->vport_debugfs_root) { 6341 vport->vport_debugfs_root = 6342 debugfs_create_dir(name, phba->hba_debugfs_root); 6343 atomic_inc(&phba->debugfs_vport_count); 6344 } 6345 6346 if (lpfc_debugfs_max_disc_trc) { 6347 num = lpfc_debugfs_max_disc_trc - 1; 6348 if (num & lpfc_debugfs_max_disc_trc) { 6349 /* Change to be a power of 2 */ 6350 num = lpfc_debugfs_max_disc_trc; 6351 i = 0; 6352 while (num > 1) { 6353 num = num >> 1; 6354 i++; 6355 } 6356 lpfc_debugfs_max_disc_trc = (1 << i); 6357 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n", 6358 lpfc_debugfs_max_disc_trc); 6359 } 6360 } 6361 6362 vport->disc_trc = kzalloc( 6363 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 6364 GFP_KERNEL); 6365 6366 if (!vport->disc_trc) { 6367 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6368 "0418 Cannot create debugfs disc trace " 6369 "buffer\n"); 6370 goto debug_failed; 6371 } 6372 atomic_set(&vport->disc_trc_cnt, 0); 6373 6374 snprintf(name, sizeof(name), "discovery_trace"); 6375 vport->debug_disc_trc = 6376 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6377 vport->vport_debugfs_root, 6378 vport, &lpfc_debugfs_op_disc_trc); 6379 snprintf(name, sizeof(name), "nodelist"); 6380 vport->debug_nodelist = 6381 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6382 vport->vport_debugfs_root, 6383 vport, &lpfc_debugfs_op_nodelist); 6384 6385 snprintf(name, sizeof(name), "nvmestat"); 6386 vport->debug_nvmestat = 6387 debugfs_create_file(name, 0644, 6388 vport->vport_debugfs_root, 6389 vport, &lpfc_debugfs_op_nvmestat); 6390 6391 snprintf(name, sizeof(name), "scsistat"); 6392 vport->debug_scsistat = 6393 debugfs_create_file(name, 0644, 6394 vport->vport_debugfs_root, 6395 vport, &lpfc_debugfs_op_scsistat); 6396 if (!vport->debug_scsistat) { 6397 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6398 "4611 Cannot create debugfs scsistat\n"); 6399 goto debug_failed; 6400 } 6401 6402 snprintf(name, sizeof(name), "ioktime"); 6403 vport->debug_ioktime = 6404 debugfs_create_file(name, 0644, 6405 vport->vport_debugfs_root, 6406 vport, &lpfc_debugfs_op_ioktime); 6407 if (!vport->debug_ioktime) { 6408 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6409 "0815 Cannot create debugfs ioktime\n"); 6410 goto debug_failed; 6411 } 6412 6413 snprintf(name, sizeof(name), "hdwqstat"); 6414 vport->debug_hdwqstat = 6415 debugfs_create_file(name, 0644, 6416 vport->vport_debugfs_root, 6417 vport, &lpfc_debugfs_op_hdwqstat); 6418 6419 /* 6420 * The following section is for additional directories/files for the 6421 * physical port. 6422 */ 6423 6424 if (!pport_setup) 6425 goto debug_failed; 6426 6427 /* 6428 * iDiag debugfs root entry points for SLI4 device only 6429 */ 6430 if (phba->sli_rev < LPFC_SLI_REV4) 6431 goto debug_failed; 6432 6433 snprintf(name, sizeof(name), "iDiag"); 6434 if (!phba->idiag_root) { 6435 phba->idiag_root = 6436 debugfs_create_dir(name, phba->hba_debugfs_root); 6437 /* Initialize iDiag data structure */ 6438 memset(&idiag, 0, sizeof(idiag)); 6439 } 6440 6441 /* iDiag read PCI config space */ 6442 snprintf(name, sizeof(name), "pciCfg"); 6443 if (!phba->idiag_pci_cfg) { 6444 phba->idiag_pci_cfg = 6445 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6446 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 6447 idiag.offset.last_rd = 0; 6448 } 6449 6450 /* iDiag PCI BAR access */ 6451 snprintf(name, sizeof(name), "barAcc"); 6452 if (!phba->idiag_bar_acc) { 6453 phba->idiag_bar_acc = 6454 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6455 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 6456 idiag.offset.last_rd = 0; 6457 } 6458 6459 /* iDiag get PCI function queue information */ 6460 snprintf(name, sizeof(name), "queInfo"); 6461 if (!phba->idiag_que_info) { 6462 phba->idiag_que_info = 6463 debugfs_create_file(name, S_IFREG|S_IRUGO, 6464 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 6465 } 6466 6467 /* iDiag access PCI function queue */ 6468 snprintf(name, sizeof(name), "queAcc"); 6469 if (!phba->idiag_que_acc) { 6470 phba->idiag_que_acc = 6471 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6472 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 6473 } 6474 6475 /* iDiag access PCI function doorbell registers */ 6476 snprintf(name, sizeof(name), "drbAcc"); 6477 if (!phba->idiag_drb_acc) { 6478 phba->idiag_drb_acc = 6479 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6480 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 6481 } 6482 6483 /* iDiag access PCI function control registers */ 6484 snprintf(name, sizeof(name), "ctlAcc"); 6485 if (!phba->idiag_ctl_acc) { 6486 phba->idiag_ctl_acc = 6487 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6488 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 6489 } 6490 6491 /* iDiag access mbox commands */ 6492 snprintf(name, sizeof(name), "mbxAcc"); 6493 if (!phba->idiag_mbx_acc) { 6494 phba->idiag_mbx_acc = 6495 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6496 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 6497 } 6498 6499 /* iDiag extents access commands */ 6500 if (phba->sli4_hba.extents_in_use) { 6501 snprintf(name, sizeof(name), "extAcc"); 6502 if (!phba->idiag_ext_acc) { 6503 phba->idiag_ext_acc = 6504 debugfs_create_file(name, 6505 S_IFREG|S_IRUGO|S_IWUSR, 6506 phba->idiag_root, phba, 6507 &lpfc_idiag_op_extAcc); 6508 } 6509 } 6510 6511 debug_failed: 6512 return; 6513 #endif 6514 } 6515 6516 /** 6517 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 6518 * @vport: The vport pointer to remove from debugfs. 6519 * 6520 * Description: 6521 * When Debugfs is configured this routine removes debugfs file system elements 6522 * that are specific to this vport. It also checks to see if there are any 6523 * users left for the debugfs directories associated with the HBA and driver. If 6524 * this is the last user of the HBA directory or driver directory then it will 6525 * remove those from the debugfs infrastructure as well. 6526 **/ 6527 inline void 6528 lpfc_debugfs_terminate(struct lpfc_vport *vport) 6529 { 6530 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6531 struct lpfc_hba *phba = vport->phba; 6532 6533 kfree(vport->disc_trc); 6534 vport->disc_trc = NULL; 6535 6536 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 6537 vport->debug_disc_trc = NULL; 6538 6539 debugfs_remove(vport->debug_nodelist); /* nodelist */ 6540 vport->debug_nodelist = NULL; 6541 6542 debugfs_remove(vport->debug_nvmestat); /* nvmestat */ 6543 vport->debug_nvmestat = NULL; 6544 6545 debugfs_remove(vport->debug_scsistat); /* scsistat */ 6546 vport->debug_scsistat = NULL; 6547 6548 debugfs_remove(vport->debug_ioktime); /* ioktime */ 6549 vport->debug_ioktime = NULL; 6550 6551 debugfs_remove(vport->debug_hdwqstat); /* hdwqstat */ 6552 vport->debug_hdwqstat = NULL; 6553 6554 if (vport->vport_debugfs_root) { 6555 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 6556 vport->vport_debugfs_root = NULL; 6557 atomic_dec(&phba->debugfs_vport_count); 6558 } 6559 6560 if (atomic_read(&phba->debugfs_vport_count) == 0) { 6561 6562 debugfs_remove(phba->debug_multixri_pools); /* multixripools*/ 6563 phba->debug_multixri_pools = NULL; 6564 6565 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 6566 phba->debug_hbqinfo = NULL; 6567 6568 debugfs_remove(phba->debug_cgn_buffer); 6569 phba->debug_cgn_buffer = NULL; 6570 6571 debugfs_remove(phba->debug_rx_monitor); 6572 phba->debug_rx_monitor = NULL; 6573 6574 debugfs_remove(phba->debug_ras_log); 6575 phba->debug_ras_log = NULL; 6576 6577 #ifdef LPFC_HDWQ_LOCK_STAT 6578 debugfs_remove(phba->debug_lockstat); /* lockstat */ 6579 phba->debug_lockstat = NULL; 6580 #endif 6581 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 6582 phba->debug_dumpHBASlim = NULL; 6583 6584 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 6585 phba->debug_dumpHostSlim = NULL; 6586 6587 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 6588 phba->debug_InjErrLBA = NULL; 6589 6590 debugfs_remove(phba->debug_InjErrNPortID); 6591 phba->debug_InjErrNPortID = NULL; 6592 6593 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 6594 phba->debug_InjErrWWPN = NULL; 6595 6596 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 6597 phba->debug_writeGuard = NULL; 6598 6599 debugfs_remove(phba->debug_writeApp); /* writeApp */ 6600 phba->debug_writeApp = NULL; 6601 6602 debugfs_remove(phba->debug_writeRef); /* writeRef */ 6603 phba->debug_writeRef = NULL; 6604 6605 debugfs_remove(phba->debug_readGuard); /* readGuard */ 6606 phba->debug_readGuard = NULL; 6607 6608 debugfs_remove(phba->debug_readApp); /* readApp */ 6609 phba->debug_readApp = NULL; 6610 6611 debugfs_remove(phba->debug_readRef); /* readRef */ 6612 phba->debug_readRef = NULL; 6613 6614 kfree(phba->slow_ring_trc); 6615 phba->slow_ring_trc = NULL; 6616 6617 /* slow_ring_trace */ 6618 debugfs_remove(phba->debug_slow_ring_trc); 6619 phba->debug_slow_ring_trc = NULL; 6620 6621 debugfs_remove(phba->debug_nvmeio_trc); 6622 phba->debug_nvmeio_trc = NULL; 6623 6624 kfree(phba->nvmeio_trc); 6625 phba->nvmeio_trc = NULL; 6626 6627 /* 6628 * iDiag release 6629 */ 6630 if (phba->sli_rev == LPFC_SLI_REV4) { 6631 /* iDiag extAcc */ 6632 debugfs_remove(phba->idiag_ext_acc); 6633 phba->idiag_ext_acc = NULL; 6634 6635 /* iDiag mbxAcc */ 6636 debugfs_remove(phba->idiag_mbx_acc); 6637 phba->idiag_mbx_acc = NULL; 6638 6639 /* iDiag ctlAcc */ 6640 debugfs_remove(phba->idiag_ctl_acc); 6641 phba->idiag_ctl_acc = NULL; 6642 6643 /* iDiag drbAcc */ 6644 debugfs_remove(phba->idiag_drb_acc); 6645 phba->idiag_drb_acc = NULL; 6646 6647 /* iDiag queAcc */ 6648 debugfs_remove(phba->idiag_que_acc); 6649 phba->idiag_que_acc = NULL; 6650 6651 /* iDiag queInfo */ 6652 debugfs_remove(phba->idiag_que_info); 6653 phba->idiag_que_info = NULL; 6654 6655 /* iDiag barAcc */ 6656 debugfs_remove(phba->idiag_bar_acc); 6657 phba->idiag_bar_acc = NULL; 6658 6659 /* iDiag pciCfg */ 6660 debugfs_remove(phba->idiag_pci_cfg); 6661 phba->idiag_pci_cfg = NULL; 6662 6663 /* Finally remove the iDiag debugfs root */ 6664 debugfs_remove(phba->idiag_root); 6665 phba->idiag_root = NULL; 6666 } 6667 6668 if (phba->hba_debugfs_root) { 6669 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 6670 phba->hba_debugfs_root = NULL; 6671 atomic_dec(&lpfc_debugfs_hba_count); 6672 } 6673 6674 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 6675 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 6676 lpfc_debugfs_root = NULL; 6677 } 6678 } 6679 #endif 6680 return; 6681 } 6682 6683 /* 6684 * Driver debug utility routines outside of debugfs. The debug utility 6685 * routines implemented here is intended to be used in the instrumented 6686 * debug driver for debugging host or port issues. 6687 */ 6688 6689 /** 6690 * lpfc_debug_dump_all_queues - dump all the queues with a hba 6691 * @phba: Pointer to HBA context object. 6692 * 6693 * This function dumps entries of all the queues asociated with the @phba. 6694 **/ 6695 void 6696 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 6697 { 6698 int idx; 6699 6700 /* 6701 * Dump Work Queues (WQs) 6702 */ 6703 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 6704 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 6705 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 6706 6707 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6708 lpfc_debug_dump_wq(phba, DUMP_IO, idx); 6709 6710 lpfc_debug_dump_hdr_rq(phba); 6711 lpfc_debug_dump_dat_rq(phba); 6712 /* 6713 * Dump Complete Queues (CQs) 6714 */ 6715 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 6716 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 6717 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 6718 6719 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6720 lpfc_debug_dump_cq(phba, DUMP_IO, idx); 6721 6722 /* 6723 * Dump Event Queues (EQs) 6724 */ 6725 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6726 lpfc_debug_dump_hba_eq(phba, idx); 6727 } 6728