1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2024 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 lpfc_hba *phba = vport->phba; 810 struct lpfc_nodelist *ndlp; 811 unsigned char *statep; 812 unsigned long iflags; 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_irqsave(&vport->fc_nodes_list_lock, iflags); 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_irqrestore(&vport->fc_nodes_list_lock, iflags); 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 /* Port state is only one of two values for now. */ 944 if (localport->port_id) 945 statep = "ONLINE"; 946 else 947 statep = "UNKNOWN "; 948 949 len += scnprintf(buf + len, size - len, 950 "Lport DID x%06x PortState %s\n", 951 localport->port_id, statep); 952 953 len += scnprintf(buf + len, size - len, "\tRport List:\n"); 954 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 955 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 956 /* local short-hand pointer. */ 957 spin_lock(&ndlp->lock); 958 rport = lpfc_ndlp_get_nrport(ndlp); 959 if (rport) 960 nrport = rport->remoteport; 961 else 962 nrport = NULL; 963 spin_unlock(&ndlp->lock); 964 if (!nrport) 965 continue; 966 967 /* Port state is only one of two values for now. */ 968 switch (nrport->port_state) { 969 case FC_OBJSTATE_ONLINE: 970 statep = "ONLINE"; 971 break; 972 case FC_OBJSTATE_UNKNOWN: 973 statep = "UNKNOWN "; 974 break; 975 default: 976 statep = "UNSUPPORTED"; 977 break; 978 } 979 980 /* Tab in to show lport ownership. */ 981 len += scnprintf(buf + len, size - len, 982 "\t%s Port ID:x%06x ", 983 statep, nrport->port_id); 984 len += scnprintf(buf + len, size - len, "WWPN x%llx ", 985 nrport->port_name); 986 len += scnprintf(buf + len, size - len, "WWNN x%llx ", 987 nrport->node_name); 988 989 /* An NVME rport can have multiple roles. */ 990 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) 991 len += scnprintf(buf + len, size - len, 992 "INITIATOR "); 993 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) 994 len += scnprintf(buf + len, size - len, 995 "TARGET "); 996 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) 997 len += scnprintf(buf + len, size - len, 998 "DISCSRVC "); 999 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 1000 FC_PORT_ROLE_NVME_TARGET | 1001 FC_PORT_ROLE_NVME_DISCOVERY)) 1002 len += scnprintf(buf + len, size - len, 1003 "UNKNOWN ROLE x%x", 1004 nrport->port_role); 1005 /* Terminate the string. */ 1006 len += scnprintf(buf + len, size - len, "\n"); 1007 } 1008 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 1009 out_exit: 1010 return len; 1011 } 1012 1013 /** 1014 * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer 1015 * @vport: The vport to gather target node info from. 1016 * @buf: The buffer to dump log into. 1017 * @size: The maximum amount of data to process. 1018 * 1019 * Description: 1020 * This routine dumps the NVME statistics associated with @vport 1021 * 1022 * Return Value: 1023 * This routine returns the amount of bytes that were dumped into @buf and will 1024 * not exceed @size. 1025 **/ 1026 static int 1027 lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size) 1028 { 1029 struct lpfc_hba *phba = vport->phba; 1030 struct lpfc_nvmet_tgtport *tgtp; 1031 struct lpfc_async_xchg_ctx *ctxp, *next_ctxp; 1032 struct nvme_fc_local_port *localport; 1033 struct lpfc_fc4_ctrl_stat *cstat; 1034 struct lpfc_nvme_lport *lport; 1035 uint64_t data1, data2, data3; 1036 uint64_t tot, totin, totout; 1037 int cnt, i; 1038 int len = 0; 1039 1040 if (phba->nvmet_support) { 1041 if (!phba->targetport) 1042 return len; 1043 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 1044 len += scnprintf(buf + len, size - len, 1045 "\nNVME Targetport Statistics\n"); 1046 1047 len += scnprintf(buf + len, size - len, 1048 "LS: Rcv %08x Drop %08x Abort %08x\n", 1049 atomic_read(&tgtp->rcv_ls_req_in), 1050 atomic_read(&tgtp->rcv_ls_req_drop), 1051 atomic_read(&tgtp->xmt_ls_abort)); 1052 if (atomic_read(&tgtp->rcv_ls_req_in) != 1053 atomic_read(&tgtp->rcv_ls_req_out)) { 1054 len += scnprintf(buf + len, size - len, 1055 "Rcv LS: in %08x != out %08x\n", 1056 atomic_read(&tgtp->rcv_ls_req_in), 1057 atomic_read(&tgtp->rcv_ls_req_out)); 1058 } 1059 1060 len += scnprintf(buf + len, size - len, 1061 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 1062 atomic_read(&tgtp->xmt_ls_rsp), 1063 atomic_read(&tgtp->xmt_ls_drop), 1064 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 1065 1066 len += scnprintf(buf + len, size - len, 1067 "LS: RSP Abort %08x xb %08x Err %08x\n", 1068 atomic_read(&tgtp->xmt_ls_rsp_aborted), 1069 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 1070 atomic_read(&tgtp->xmt_ls_rsp_error)); 1071 1072 len += scnprintf(buf + len, size - len, 1073 "FCP: Rcv %08x Defer %08x Release %08x " 1074 "Drop %08x\n", 1075 atomic_read(&tgtp->rcv_fcp_cmd_in), 1076 atomic_read(&tgtp->rcv_fcp_cmd_defer), 1077 atomic_read(&tgtp->xmt_fcp_release), 1078 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 1079 1080 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 1081 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 1082 len += scnprintf(buf + len, size - len, 1083 "Rcv FCP: in %08x != out %08x\n", 1084 atomic_read(&tgtp->rcv_fcp_cmd_in), 1085 atomic_read(&tgtp->rcv_fcp_cmd_out)); 1086 } 1087 1088 len += scnprintf(buf + len, size - len, 1089 "FCP Rsp: read %08x readrsp %08x " 1090 "write %08x rsp %08x\n", 1091 atomic_read(&tgtp->xmt_fcp_read), 1092 atomic_read(&tgtp->xmt_fcp_read_rsp), 1093 atomic_read(&tgtp->xmt_fcp_write), 1094 atomic_read(&tgtp->xmt_fcp_rsp)); 1095 1096 len += scnprintf(buf + len, size - len, 1097 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 1098 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 1099 atomic_read(&tgtp->xmt_fcp_rsp_error), 1100 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 1101 1102 len += scnprintf(buf + len, size - len, 1103 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 1104 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 1105 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 1106 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 1107 1108 len += scnprintf(buf + len, size - len, 1109 "ABORT: Xmt %08x Cmpl %08x\n", 1110 atomic_read(&tgtp->xmt_fcp_abort), 1111 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 1112 1113 len += scnprintf(buf + len, size - len, 1114 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x", 1115 atomic_read(&tgtp->xmt_abort_sol), 1116 atomic_read(&tgtp->xmt_abort_unsol), 1117 atomic_read(&tgtp->xmt_abort_rsp), 1118 atomic_read(&tgtp->xmt_abort_rsp_error)); 1119 1120 len += scnprintf(buf + len, size - len, "\n"); 1121 1122 cnt = 0; 1123 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1124 list_for_each_entry_safe(ctxp, next_ctxp, 1125 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1126 list) { 1127 cnt++; 1128 } 1129 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1130 if (cnt) { 1131 len += scnprintf(buf + len, size - len, 1132 "ABORT: %d ctx entries\n", cnt); 1133 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1134 list_for_each_entry_safe(ctxp, next_ctxp, 1135 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1136 list) { 1137 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) 1138 break; 1139 len += scnprintf(buf + len, size - len, 1140 "Entry: oxid %x state %x " 1141 "flag %x\n", 1142 ctxp->oxid, ctxp->state, 1143 ctxp->flag); 1144 } 1145 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1146 } 1147 1148 /* Calculate outstanding IOs */ 1149 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 1150 tot += atomic_read(&tgtp->xmt_fcp_release); 1151 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 1152 1153 len += scnprintf(buf + len, size - len, 1154 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 1155 "CTX Outstanding %08llx\n", 1156 phba->sli4_hba.nvmet_xri_cnt, 1157 phba->sli4_hba.nvmet_io_wait_cnt, 1158 phba->sli4_hba.nvmet_io_wait_total, 1159 tot); 1160 } else { 1161 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 1162 return len; 1163 1164 localport = vport->localport; 1165 if (!localport) 1166 return len; 1167 lport = (struct lpfc_nvme_lport *)localport->private; 1168 if (!lport) 1169 return len; 1170 1171 len += scnprintf(buf + len, size - len, 1172 "\nNVME HDWQ Statistics\n"); 1173 1174 len += scnprintf(buf + len, size - len, 1175 "LS: Xmt %016x Cmpl %016x\n", 1176 atomic_read(&lport->fc4NvmeLsRequests), 1177 atomic_read(&lport->fc4NvmeLsCmpls)); 1178 1179 totin = 0; 1180 totout = 0; 1181 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1182 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 1183 tot = cstat->io_cmpls; 1184 totin += tot; 1185 data1 = cstat->input_requests; 1186 data2 = cstat->output_requests; 1187 data3 = cstat->control_requests; 1188 totout += (data1 + data2 + data3); 1189 1190 /* Limit to 32, debugfs display buffer limitation */ 1191 if (i >= 32) 1192 continue; 1193 1194 len += scnprintf(buf + len, PAGE_SIZE - len, 1195 "HDWQ (%d): Rd %016llx Wr %016llx " 1196 "IO %016llx ", 1197 i, data1, data2, data3); 1198 len += scnprintf(buf + len, PAGE_SIZE - len, 1199 "Cmpl %016llx OutIO %016llx\n", 1200 tot, ((data1 + data2 + data3) - tot)); 1201 } 1202 len += scnprintf(buf + len, PAGE_SIZE - len, 1203 "Total FCP Cmpl %016llx Issue %016llx " 1204 "OutIO %016llx\n", 1205 totin, totout, totout - totin); 1206 1207 len += scnprintf(buf + len, size - len, 1208 "LS Xmt Err: Abrt %08x Err %08x " 1209 "Cmpl Err: xb %08x Err %08x\n", 1210 atomic_read(&lport->xmt_ls_abort), 1211 atomic_read(&lport->xmt_ls_err), 1212 atomic_read(&lport->cmpl_ls_xb), 1213 atomic_read(&lport->cmpl_ls_err)); 1214 1215 len += scnprintf(buf + len, size - len, 1216 "FCP Xmt Err: noxri %06x nondlp %06x " 1217 "qdepth %06x wqerr %06x err %06x Abrt %06x\n", 1218 atomic_read(&lport->xmt_fcp_noxri), 1219 atomic_read(&lport->xmt_fcp_bad_ndlp), 1220 atomic_read(&lport->xmt_fcp_qdepth), 1221 atomic_read(&lport->xmt_fcp_wqerr), 1222 atomic_read(&lport->xmt_fcp_err), 1223 atomic_read(&lport->xmt_fcp_abort)); 1224 1225 len += scnprintf(buf + len, size - len, 1226 "FCP Cmpl Err: xb %08x Err %08x\n", 1227 atomic_read(&lport->cmpl_fcp_xb), 1228 atomic_read(&lport->cmpl_fcp_err)); 1229 1230 } 1231 1232 return len; 1233 } 1234 1235 /** 1236 * lpfc_debugfs_scsistat_data - Dump target node list to a buffer 1237 * @vport: The vport to gather target node info from. 1238 * @buf: The buffer to dump log into. 1239 * @size: The maximum amount of data to process. 1240 * 1241 * Description: 1242 * This routine dumps the SCSI statistics associated with @vport 1243 * 1244 * Return Value: 1245 * This routine returns the amount of bytes that were dumped into @buf and will 1246 * not exceed @size. 1247 **/ 1248 static int 1249 lpfc_debugfs_scsistat_data(struct lpfc_vport *vport, char *buf, int size) 1250 { 1251 int len; 1252 struct lpfc_hba *phba = vport->phba; 1253 struct lpfc_fc4_ctrl_stat *cstat; 1254 u64 data1, data2, data3; 1255 u64 tot, totin, totout; 1256 int i; 1257 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 1258 1259 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 1260 (phba->sli_rev != LPFC_SLI_REV4)) 1261 return 0; 1262 1263 scnprintf(buf, size, "SCSI HDWQ Statistics\n"); 1264 1265 totin = 0; 1266 totout = 0; 1267 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1268 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 1269 tot = cstat->io_cmpls; 1270 totin += tot; 1271 data1 = cstat->input_requests; 1272 data2 = cstat->output_requests; 1273 data3 = cstat->control_requests; 1274 totout += (data1 + data2 + data3); 1275 1276 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 1277 "IO %016llx ", i, data1, data2, data3); 1278 if (strlcat(buf, tmp, size) >= size) 1279 goto buffer_done; 1280 1281 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 1282 tot, ((data1 + data2 + data3) - tot)); 1283 if (strlcat(buf, tmp, size) >= size) 1284 goto buffer_done; 1285 } 1286 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 1287 "OutIO %016llx\n", totin, totout, totout - totin); 1288 strlcat(buf, tmp, size); 1289 1290 buffer_done: 1291 len = strnlen(buf, size); 1292 1293 return len; 1294 } 1295 1296 void 1297 lpfc_io_ktime(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) 1298 { 1299 uint64_t seg1, seg2, seg3, seg4; 1300 uint64_t segsum; 1301 1302 if (!lpfc_cmd->ts_last_cmd || 1303 !lpfc_cmd->ts_cmd_start || 1304 !lpfc_cmd->ts_cmd_wqput || 1305 !lpfc_cmd->ts_isr_cmpl || 1306 !lpfc_cmd->ts_data_io) 1307 return; 1308 1309 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_cmd_start) 1310 return; 1311 if (lpfc_cmd->ts_cmd_start < lpfc_cmd->ts_last_cmd) 1312 return; 1313 if (lpfc_cmd->ts_cmd_wqput < lpfc_cmd->ts_cmd_start) 1314 return; 1315 if (lpfc_cmd->ts_isr_cmpl < lpfc_cmd->ts_cmd_wqput) 1316 return; 1317 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_isr_cmpl) 1318 return; 1319 /* 1320 * Segment 1 - Time from Last FCP command cmpl is handed 1321 * off to NVME Layer to start of next command. 1322 * Segment 2 - Time from Driver receives a IO cmd start 1323 * from NVME Layer to WQ put is done on IO cmd. 1324 * Segment 3 - Time from Driver WQ put is done on IO cmd 1325 * to MSI-X ISR for IO cmpl. 1326 * Segment 4 - Time from MSI-X ISR for IO cmpl to when 1327 * cmpl is handled off to the NVME Layer. 1328 */ 1329 seg1 = lpfc_cmd->ts_cmd_start - lpfc_cmd->ts_last_cmd; 1330 if (seg1 > 5000000) /* 5 ms - for sequential IOs only */ 1331 seg1 = 0; 1332 1333 /* Calculate times relative to start of IO */ 1334 seg2 = (lpfc_cmd->ts_cmd_wqput - lpfc_cmd->ts_cmd_start); 1335 segsum = seg2; 1336 seg3 = lpfc_cmd->ts_isr_cmpl - lpfc_cmd->ts_cmd_start; 1337 if (segsum > seg3) 1338 return; 1339 seg3 -= segsum; 1340 segsum += seg3; 1341 1342 seg4 = lpfc_cmd->ts_data_io - lpfc_cmd->ts_cmd_start; 1343 if (segsum > seg4) 1344 return; 1345 seg4 -= segsum; 1346 1347 phba->ktime_data_samples++; 1348 phba->ktime_seg1_total += seg1; 1349 if (seg1 < phba->ktime_seg1_min) 1350 phba->ktime_seg1_min = seg1; 1351 else if (seg1 > phba->ktime_seg1_max) 1352 phba->ktime_seg1_max = seg1; 1353 phba->ktime_seg2_total += seg2; 1354 if (seg2 < phba->ktime_seg2_min) 1355 phba->ktime_seg2_min = seg2; 1356 else if (seg2 > phba->ktime_seg2_max) 1357 phba->ktime_seg2_max = seg2; 1358 phba->ktime_seg3_total += seg3; 1359 if (seg3 < phba->ktime_seg3_min) 1360 phba->ktime_seg3_min = seg3; 1361 else if (seg3 > phba->ktime_seg3_max) 1362 phba->ktime_seg3_max = seg3; 1363 phba->ktime_seg4_total += seg4; 1364 if (seg4 < phba->ktime_seg4_min) 1365 phba->ktime_seg4_min = seg4; 1366 else if (seg4 > phba->ktime_seg4_max) 1367 phba->ktime_seg4_max = seg4; 1368 1369 lpfc_cmd->ts_last_cmd = 0; 1370 lpfc_cmd->ts_cmd_start = 0; 1371 lpfc_cmd->ts_cmd_wqput = 0; 1372 lpfc_cmd->ts_isr_cmpl = 0; 1373 lpfc_cmd->ts_data_io = 0; 1374 } 1375 1376 /** 1377 * lpfc_debugfs_ioktime_data - Dump target node list to a buffer 1378 * @vport: The vport to gather target node info from. 1379 * @buf: The buffer to dump log into. 1380 * @size: The maximum amount of data to process. 1381 * 1382 * Description: 1383 * This routine dumps the NVME statistics associated with @vport 1384 * 1385 * Return Value: 1386 * This routine returns the amount of bytes that were dumped into @buf and will 1387 * not exceed @size. 1388 **/ 1389 static int 1390 lpfc_debugfs_ioktime_data(struct lpfc_vport *vport, char *buf, int size) 1391 { 1392 struct lpfc_hba *phba = vport->phba; 1393 int len = 0; 1394 1395 if (phba->nvmet_support == 0) { 1396 /* Initiator */ 1397 len += scnprintf(buf + len, PAGE_SIZE - len, 1398 "ktime %s: Total Samples: %lld\n", 1399 (phba->ktime_on ? "Enabled" : "Disabled"), 1400 phba->ktime_data_samples); 1401 if (phba->ktime_data_samples == 0) 1402 return len; 1403 1404 len += scnprintf( 1405 buf + len, PAGE_SIZE - len, 1406 "Segment 1: Last Cmd cmpl " 1407 "done -to- Start of next Cmd (in driver)\n"); 1408 len += scnprintf( 1409 buf + len, PAGE_SIZE - len, 1410 "avg:%08lld min:%08lld max %08lld\n", 1411 div_u64(phba->ktime_seg1_total, 1412 phba->ktime_data_samples), 1413 phba->ktime_seg1_min, 1414 phba->ktime_seg1_max); 1415 len += scnprintf( 1416 buf + len, PAGE_SIZE - len, 1417 "Segment 2: Driver start of Cmd " 1418 "-to- Firmware WQ doorbell\n"); 1419 len += scnprintf( 1420 buf + len, PAGE_SIZE - len, 1421 "avg:%08lld min:%08lld max %08lld\n", 1422 div_u64(phba->ktime_seg2_total, 1423 phba->ktime_data_samples), 1424 phba->ktime_seg2_min, 1425 phba->ktime_seg2_max); 1426 len += scnprintf( 1427 buf + len, PAGE_SIZE - len, 1428 "Segment 3: Firmware WQ doorbell -to- " 1429 "MSI-X ISR cmpl\n"); 1430 len += scnprintf( 1431 buf + len, PAGE_SIZE - len, 1432 "avg:%08lld min:%08lld max %08lld\n", 1433 div_u64(phba->ktime_seg3_total, 1434 phba->ktime_data_samples), 1435 phba->ktime_seg3_min, 1436 phba->ktime_seg3_max); 1437 len += scnprintf( 1438 buf + len, PAGE_SIZE - len, 1439 "Segment 4: MSI-X ISR cmpl -to- " 1440 "Cmd cmpl done\n"); 1441 len += scnprintf( 1442 buf + len, PAGE_SIZE - len, 1443 "avg:%08lld min:%08lld max %08lld\n", 1444 div_u64(phba->ktime_seg4_total, 1445 phba->ktime_data_samples), 1446 phba->ktime_seg4_min, 1447 phba->ktime_seg4_max); 1448 len += scnprintf( 1449 buf + len, PAGE_SIZE - len, 1450 "Total IO avg time: %08lld\n", 1451 div_u64(phba->ktime_seg1_total + 1452 phba->ktime_seg2_total + 1453 phba->ktime_seg3_total + 1454 phba->ktime_seg4_total, 1455 phba->ktime_data_samples)); 1456 return len; 1457 } 1458 1459 /* NVME Target */ 1460 len += scnprintf(buf + len, PAGE_SIZE-len, 1461 "ktime %s: Total Samples: %lld %lld\n", 1462 (phba->ktime_on ? "Enabled" : "Disabled"), 1463 phba->ktime_data_samples, 1464 phba->ktime_status_samples); 1465 if (phba->ktime_data_samples == 0) 1466 return len; 1467 1468 len += scnprintf(buf + len, PAGE_SIZE-len, 1469 "Segment 1: MSI-X ISR Rcv cmd -to- " 1470 "cmd pass to NVME Layer\n"); 1471 len += scnprintf(buf + len, PAGE_SIZE-len, 1472 "avg:%08lld min:%08lld max %08lld\n", 1473 div_u64(phba->ktime_seg1_total, 1474 phba->ktime_data_samples), 1475 phba->ktime_seg1_min, 1476 phba->ktime_seg1_max); 1477 len += scnprintf(buf + len, PAGE_SIZE-len, 1478 "Segment 2: cmd pass to NVME Layer- " 1479 "-to- Driver rcv cmd OP (action)\n"); 1480 len += scnprintf(buf + len, PAGE_SIZE-len, 1481 "avg:%08lld min:%08lld max %08lld\n", 1482 div_u64(phba->ktime_seg2_total, 1483 phba->ktime_data_samples), 1484 phba->ktime_seg2_min, 1485 phba->ktime_seg2_max); 1486 len += scnprintf(buf + len, PAGE_SIZE-len, 1487 "Segment 3: Driver rcv cmd OP -to- " 1488 "Firmware WQ doorbell: cmd\n"); 1489 len += scnprintf(buf + len, PAGE_SIZE-len, 1490 "avg:%08lld min:%08lld max %08lld\n", 1491 div_u64(phba->ktime_seg3_total, 1492 phba->ktime_data_samples), 1493 phba->ktime_seg3_min, 1494 phba->ktime_seg3_max); 1495 len += scnprintf(buf + len, PAGE_SIZE-len, 1496 "Segment 4: Firmware WQ doorbell: cmd " 1497 "-to- MSI-X ISR for cmd cmpl\n"); 1498 len += scnprintf(buf + len, PAGE_SIZE-len, 1499 "avg:%08lld min:%08lld max %08lld\n", 1500 div_u64(phba->ktime_seg4_total, 1501 phba->ktime_data_samples), 1502 phba->ktime_seg4_min, 1503 phba->ktime_seg4_max); 1504 len += scnprintf(buf + len, PAGE_SIZE-len, 1505 "Segment 5: MSI-X ISR for cmd cmpl " 1506 "-to- NVME layer passed cmd done\n"); 1507 len += scnprintf(buf + len, PAGE_SIZE-len, 1508 "avg:%08lld min:%08lld max %08lld\n", 1509 div_u64(phba->ktime_seg5_total, 1510 phba->ktime_data_samples), 1511 phba->ktime_seg5_min, 1512 phba->ktime_seg5_max); 1513 1514 if (phba->ktime_status_samples == 0) { 1515 len += scnprintf(buf + len, PAGE_SIZE-len, 1516 "Total: cmd received by MSI-X ISR " 1517 "-to- cmd completed on wire\n"); 1518 len += scnprintf(buf + len, PAGE_SIZE-len, 1519 "avg:%08lld min:%08lld " 1520 "max %08lld\n", 1521 div_u64(phba->ktime_seg10_total, 1522 phba->ktime_data_samples), 1523 phba->ktime_seg10_min, 1524 phba->ktime_seg10_max); 1525 return len; 1526 } 1527 1528 len += scnprintf(buf + len, PAGE_SIZE-len, 1529 "Segment 6: NVME layer passed cmd done " 1530 "-to- Driver rcv rsp status OP\n"); 1531 len += scnprintf(buf + len, PAGE_SIZE-len, 1532 "avg:%08lld min:%08lld max %08lld\n", 1533 div_u64(phba->ktime_seg6_total, 1534 phba->ktime_status_samples), 1535 phba->ktime_seg6_min, 1536 phba->ktime_seg6_max); 1537 len += scnprintf(buf + len, PAGE_SIZE-len, 1538 "Segment 7: Driver rcv rsp status OP " 1539 "-to- Firmware WQ doorbell: status\n"); 1540 len += scnprintf(buf + len, PAGE_SIZE-len, 1541 "avg:%08lld min:%08lld max %08lld\n", 1542 div_u64(phba->ktime_seg7_total, 1543 phba->ktime_status_samples), 1544 phba->ktime_seg7_min, 1545 phba->ktime_seg7_max); 1546 len += scnprintf(buf + len, PAGE_SIZE-len, 1547 "Segment 8: Firmware WQ doorbell: status" 1548 " -to- MSI-X ISR for status cmpl\n"); 1549 len += scnprintf(buf + len, PAGE_SIZE-len, 1550 "avg:%08lld min:%08lld max %08lld\n", 1551 div_u64(phba->ktime_seg8_total, 1552 phba->ktime_status_samples), 1553 phba->ktime_seg8_min, 1554 phba->ktime_seg8_max); 1555 len += scnprintf(buf + len, PAGE_SIZE-len, 1556 "Segment 9: MSI-X ISR for status cmpl " 1557 "-to- NVME layer passed status done\n"); 1558 len += scnprintf(buf + len, PAGE_SIZE-len, 1559 "avg:%08lld min:%08lld max %08lld\n", 1560 div_u64(phba->ktime_seg9_total, 1561 phba->ktime_status_samples), 1562 phba->ktime_seg9_min, 1563 phba->ktime_seg9_max); 1564 len += scnprintf(buf + len, PAGE_SIZE-len, 1565 "Total: cmd received by MSI-X ISR -to- " 1566 "cmd completed on wire\n"); 1567 len += scnprintf(buf + len, PAGE_SIZE-len, 1568 "avg:%08lld min:%08lld max %08lld\n", 1569 div_u64(phba->ktime_seg10_total, 1570 phba->ktime_status_samples), 1571 phba->ktime_seg10_min, 1572 phba->ktime_seg10_max); 1573 return len; 1574 } 1575 1576 /** 1577 * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer 1578 * @phba: The phba to gather target node info from. 1579 * @buf: The buffer to dump log into. 1580 * @size: The maximum amount of data to process. 1581 * 1582 * Description: 1583 * This routine dumps the NVME IO trace associated with @phba 1584 * 1585 * Return Value: 1586 * This routine returns the amount of bytes that were dumped into @buf and will 1587 * not exceed @size. 1588 **/ 1589 static int 1590 lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size) 1591 { 1592 struct lpfc_debugfs_nvmeio_trc *dtp; 1593 int i, state, index, skip; 1594 int len = 0; 1595 1596 state = phba->nvmeio_trc_on; 1597 1598 index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) & 1599 (phba->nvmeio_trc_size - 1); 1600 skip = phba->nvmeio_trc_output_idx; 1601 1602 len += scnprintf(buf + len, size - len, 1603 "%s IO Trace %s: next_idx %d skip %d size %d\n", 1604 (phba->nvmet_support ? "NVME" : "NVMET"), 1605 (state ? "Enabled" : "Disabled"), 1606 index, skip, phba->nvmeio_trc_size); 1607 1608 if (!phba->nvmeio_trc || state) 1609 return len; 1610 1611 /* trace MUST bhe off to continue */ 1612 1613 for (i = index; i < phba->nvmeio_trc_size; i++) { 1614 if (skip) { 1615 skip--; 1616 continue; 1617 } 1618 dtp = phba->nvmeio_trc + i; 1619 phba->nvmeio_trc_output_idx++; 1620 1621 if (!dtp->fmt) 1622 continue; 1623 1624 len += scnprintf(buf + len, size - len, dtp->fmt, 1625 dtp->data1, dtp->data2, dtp->data3); 1626 1627 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1628 phba->nvmeio_trc_output_idx = 0; 1629 len += scnprintf(buf + len, size - len, 1630 "Trace Complete\n"); 1631 goto out; 1632 } 1633 1634 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1635 len += scnprintf(buf + len, size - len, 1636 "Trace Continue (%d of %d)\n", 1637 phba->nvmeio_trc_output_idx, 1638 phba->nvmeio_trc_size); 1639 goto out; 1640 } 1641 } 1642 for (i = 0; i < index; i++) { 1643 if (skip) { 1644 skip--; 1645 continue; 1646 } 1647 dtp = phba->nvmeio_trc + i; 1648 phba->nvmeio_trc_output_idx++; 1649 1650 if (!dtp->fmt) 1651 continue; 1652 1653 len += scnprintf(buf + len, size - len, dtp->fmt, 1654 dtp->data1, dtp->data2, dtp->data3); 1655 1656 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1657 phba->nvmeio_trc_output_idx = 0; 1658 len += scnprintf(buf + len, size - len, 1659 "Trace Complete\n"); 1660 goto out; 1661 } 1662 1663 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1664 len += scnprintf(buf + len, size - len, 1665 "Trace Continue (%d of %d)\n", 1666 phba->nvmeio_trc_output_idx, 1667 phba->nvmeio_trc_size); 1668 goto out; 1669 } 1670 } 1671 1672 len += scnprintf(buf + len, size - len, 1673 "Trace Done\n"); 1674 out: 1675 return len; 1676 } 1677 1678 /** 1679 * lpfc_debugfs_hdwqstat_data - Dump I/O stats to a buffer 1680 * @vport: The vport to gather target node info from. 1681 * @buf: The buffer to dump log into. 1682 * @size: The maximum amount of data to process. 1683 * 1684 * Description: 1685 * This routine dumps the NVME + SCSI statistics associated with @vport 1686 * 1687 * Return Value: 1688 * This routine returns the amount of bytes that were dumped into @buf and will 1689 * not exceed @size. 1690 **/ 1691 static int 1692 lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size) 1693 { 1694 struct lpfc_hba *phba = vport->phba; 1695 struct lpfc_hdwq_stat *c_stat; 1696 int i, j, len; 1697 uint32_t tot_xmt; 1698 uint32_t tot_rcv; 1699 uint32_t tot_cmpl; 1700 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 1701 1702 scnprintf(tmp, sizeof(tmp), "HDWQ Stats:\n\n"); 1703 if (strlcat(buf, tmp, size) >= size) 1704 goto buffer_done; 1705 1706 scnprintf(tmp, sizeof(tmp), "(NVME Accounting: %s) ", 1707 (phba->hdwqstat_on & 1708 (LPFC_CHECK_NVME_IO | LPFC_CHECK_NVMET_IO) ? 1709 "Enabled" : "Disabled")); 1710 if (strlcat(buf, tmp, size) >= size) 1711 goto buffer_done; 1712 1713 scnprintf(tmp, sizeof(tmp), "(SCSI Accounting: %s) ", 1714 (phba->hdwqstat_on & LPFC_CHECK_SCSI_IO ? 1715 "Enabled" : "Disabled")); 1716 if (strlcat(buf, tmp, size) >= size) 1717 goto buffer_done; 1718 1719 scnprintf(tmp, sizeof(tmp), "\n\n"); 1720 if (strlcat(buf, tmp, size) >= size) 1721 goto buffer_done; 1722 1723 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1724 tot_rcv = 0; 1725 tot_xmt = 0; 1726 tot_cmpl = 0; 1727 1728 for_each_present_cpu(j) { 1729 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, j); 1730 1731 /* Only display for this HDWQ */ 1732 if (i != c_stat->hdwq_no) 1733 continue; 1734 1735 /* Only display non-zero counters */ 1736 if (!c_stat->xmt_io && !c_stat->cmpl_io && 1737 !c_stat->rcv_io) 1738 continue; 1739 1740 if (!tot_xmt && !tot_cmpl && !tot_rcv) { 1741 /* Print HDWQ string only the first time */ 1742 scnprintf(tmp, sizeof(tmp), "[HDWQ %d]:\t", i); 1743 if (strlcat(buf, tmp, size) >= size) 1744 goto buffer_done; 1745 } 1746 1747 tot_xmt += c_stat->xmt_io; 1748 tot_cmpl += c_stat->cmpl_io; 1749 if (phba->nvmet_support) 1750 tot_rcv += c_stat->rcv_io; 1751 1752 scnprintf(tmp, sizeof(tmp), "| [CPU %d]: ", j); 1753 if (strlcat(buf, tmp, size) >= size) 1754 goto buffer_done; 1755 1756 if (phba->nvmet_support) { 1757 scnprintf(tmp, sizeof(tmp), 1758 "XMT 0x%x CMPL 0x%x RCV 0x%x |", 1759 c_stat->xmt_io, c_stat->cmpl_io, 1760 c_stat->rcv_io); 1761 if (strlcat(buf, tmp, size) >= size) 1762 goto buffer_done; 1763 } else { 1764 scnprintf(tmp, sizeof(tmp), 1765 "XMT 0x%x CMPL 0x%x |", 1766 c_stat->xmt_io, c_stat->cmpl_io); 1767 if (strlcat(buf, tmp, size) >= size) 1768 goto buffer_done; 1769 } 1770 } 1771 1772 /* Check if nothing to display */ 1773 if (!tot_xmt && !tot_cmpl && !tot_rcv) 1774 continue; 1775 1776 scnprintf(tmp, sizeof(tmp), "\t->\t[HDWQ Total: "); 1777 if (strlcat(buf, tmp, size) >= size) 1778 goto buffer_done; 1779 1780 if (phba->nvmet_support) { 1781 scnprintf(tmp, sizeof(tmp), 1782 "XMT 0x%x CMPL 0x%x RCV 0x%x]\n\n", 1783 tot_xmt, tot_cmpl, tot_rcv); 1784 if (strlcat(buf, tmp, size) >= size) 1785 goto buffer_done; 1786 } else { 1787 scnprintf(tmp, sizeof(tmp), 1788 "XMT 0x%x CMPL 0x%x]\n\n", 1789 tot_xmt, tot_cmpl); 1790 if (strlcat(buf, tmp, size) >= size) 1791 goto buffer_done; 1792 } 1793 } 1794 1795 buffer_done: 1796 len = strnlen(buf, size); 1797 return len; 1798 } 1799 1800 #endif 1801 1802 /** 1803 * lpfc_debugfs_disc_trc - Store discovery trace log 1804 * @vport: The vport to associate this trace string with for retrieval. 1805 * @mask: Log entry classification. 1806 * @fmt: Format string to be displayed when dumping the log. 1807 * @data1: 1st data parameter to be applied to @fmt. 1808 * @data2: 2nd data parameter to be applied to @fmt. 1809 * @data3: 3rd data parameter to be applied to @fmt. 1810 * 1811 * Description: 1812 * This routine is used by the driver code to add a debugfs log entry to the 1813 * discovery trace buffer associated with @vport. Only entries with a @mask that 1814 * match the current debugfs discovery mask will be saved. Entries that do not 1815 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 1816 * printf when displaying the log. 1817 **/ 1818 inline void 1819 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 1820 uint32_t data1, uint32_t data2, uint32_t data3) 1821 { 1822 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1823 struct lpfc_debugfs_trc *dtp; 1824 int index; 1825 1826 if (!(lpfc_debugfs_mask_disc_trc & mask)) 1827 return; 1828 1829 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 1830 !vport || !vport->disc_trc) 1831 return; 1832 1833 index = atomic_inc_return(&vport->disc_trc_cnt) & 1834 (lpfc_debugfs_max_disc_trc - 1); 1835 dtp = vport->disc_trc + index; 1836 dtp->fmt = fmt; 1837 dtp->data1 = data1; 1838 dtp->data2 = data2; 1839 dtp->data3 = data3; 1840 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1841 dtp->jif = jiffies; 1842 #endif 1843 return; 1844 } 1845 1846 /** 1847 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 1848 * @phba: The phba to associate this trace string with for retrieval. 1849 * @fmt: Format string to be displayed when dumping the log. 1850 * @data1: 1st data parameter to be applied to @fmt. 1851 * @data2: 2nd data parameter to be applied to @fmt. 1852 * @data3: 3rd data parameter to be applied to @fmt. 1853 * 1854 * Description: 1855 * This routine is used by the driver code to add a debugfs log entry to the 1856 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 1857 * @data3 are used like printf when displaying the log. 1858 **/ 1859 inline void 1860 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 1861 uint32_t data1, uint32_t data2, uint32_t data3) 1862 { 1863 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1864 struct lpfc_debugfs_trc *dtp; 1865 int index; 1866 1867 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 1868 !phba || !phba->slow_ring_trc) 1869 return; 1870 1871 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 1872 (lpfc_debugfs_max_slow_ring_trc - 1); 1873 dtp = phba->slow_ring_trc + index; 1874 dtp->fmt = fmt; 1875 dtp->data1 = data1; 1876 dtp->data2 = data2; 1877 dtp->data3 = data3; 1878 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1879 dtp->jif = jiffies; 1880 #endif 1881 return; 1882 } 1883 1884 /** 1885 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log 1886 * @phba: The phba to associate this trace string with for retrieval. 1887 * @fmt: Format string to be displayed when dumping the log. 1888 * @data1: 1st data parameter to be applied to @fmt. 1889 * @data2: 2nd data parameter to be applied to @fmt. 1890 * @data3: 3rd data parameter to be applied to @fmt. 1891 * 1892 * Description: 1893 * This routine is used by the driver code to add a debugfs log entry to the 1894 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and 1895 * @data3 are used like printf when displaying the log. 1896 **/ 1897 inline void 1898 lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, 1899 uint16_t data1, uint16_t data2, uint32_t data3) 1900 { 1901 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1902 struct lpfc_debugfs_nvmeio_trc *dtp; 1903 int index; 1904 1905 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) 1906 return; 1907 1908 index = atomic_inc_return(&phba->nvmeio_trc_cnt) & 1909 (phba->nvmeio_trc_size - 1); 1910 dtp = phba->nvmeio_trc + index; 1911 dtp->fmt = fmt; 1912 dtp->data1 = data1; 1913 dtp->data2 = data2; 1914 dtp->data3 = data3; 1915 #endif 1916 } 1917 1918 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1919 /** 1920 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 1921 * @inode: The inode pointer that contains a vport pointer. 1922 * @file: The file pointer to attach the log output. 1923 * 1924 * Description: 1925 * This routine is the entry point for the debugfs open file operation. It gets 1926 * the vport from the i_private field in @inode, allocates the necessary buffer 1927 * for the log, fills the buffer from the in-memory log for this vport, and then 1928 * returns a pointer to that log in the private_data field in @file. 1929 * 1930 * Returns: 1931 * This function returns zero if successful. On error it will return a negative 1932 * error value. 1933 **/ 1934 static int 1935 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 1936 { 1937 struct lpfc_vport *vport = inode->i_private; 1938 struct lpfc_debug *debug; 1939 int size; 1940 int rc = -ENOMEM; 1941 1942 if (!lpfc_debugfs_max_disc_trc) { 1943 rc = -ENOSPC; 1944 goto out; 1945 } 1946 1947 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1948 if (!debug) 1949 goto out; 1950 1951 /* Round to page boundary */ 1952 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1953 size = PAGE_ALIGN(size); 1954 1955 debug->buffer = kmalloc(size, GFP_KERNEL); 1956 if (!debug->buffer) { 1957 kfree(debug); 1958 goto out; 1959 } 1960 1961 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 1962 file->private_data = debug; 1963 1964 rc = 0; 1965 out: 1966 return rc; 1967 } 1968 1969 /** 1970 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 1971 * @inode: The inode pointer that contains a vport pointer. 1972 * @file: The file pointer to attach the log output. 1973 * 1974 * Description: 1975 * This routine is the entry point for the debugfs open file operation. It gets 1976 * the vport from the i_private field in @inode, allocates the necessary buffer 1977 * for the log, fills the buffer from the in-memory log for this vport, and then 1978 * returns a pointer to that log in the private_data field in @file. 1979 * 1980 * Returns: 1981 * This function returns zero if successful. On error it will return a negative 1982 * error value. 1983 **/ 1984 static int 1985 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 1986 { 1987 struct lpfc_hba *phba = inode->i_private; 1988 struct lpfc_debug *debug; 1989 int size; 1990 int rc = -ENOMEM; 1991 1992 if (!lpfc_debugfs_max_slow_ring_trc) { 1993 rc = -ENOSPC; 1994 goto out; 1995 } 1996 1997 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1998 if (!debug) 1999 goto out; 2000 2001 /* Round to page boundary */ 2002 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 2003 size = PAGE_ALIGN(size); 2004 2005 debug->buffer = kmalloc(size, GFP_KERNEL); 2006 if (!debug->buffer) { 2007 kfree(debug); 2008 goto out; 2009 } 2010 2011 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 2012 file->private_data = debug; 2013 2014 rc = 0; 2015 out: 2016 return rc; 2017 } 2018 2019 /** 2020 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 2021 * @inode: The inode pointer that contains a vport pointer. 2022 * @file: The file pointer to attach the log output. 2023 * 2024 * Description: 2025 * This routine is the entry point for the debugfs open file operation. It gets 2026 * the vport from the i_private field in @inode, allocates the necessary buffer 2027 * for the log, fills the buffer from the in-memory log for this vport, and then 2028 * returns a pointer to that log in the private_data field in @file. 2029 * 2030 * Returns: 2031 * This function returns zero if successful. On error it will return a negative 2032 * error value. 2033 **/ 2034 static int 2035 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 2036 { 2037 struct lpfc_hba *phba = inode->i_private; 2038 struct lpfc_debug *debug; 2039 int rc = -ENOMEM; 2040 2041 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2042 if (!debug) 2043 goto out; 2044 2045 /* Round to page boundary */ 2046 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 2047 if (!debug->buffer) { 2048 kfree(debug); 2049 goto out; 2050 } 2051 2052 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 2053 LPFC_HBQINFO_SIZE); 2054 file->private_data = debug; 2055 2056 rc = 0; 2057 out: 2058 return rc; 2059 } 2060 2061 /** 2062 * lpfc_debugfs_multixripools_open - Open the multixripool debugfs buffer 2063 * @inode: The inode pointer that contains a hba pointer. 2064 * @file: The file pointer to attach the log output. 2065 * 2066 * Description: 2067 * This routine is the entry point for the debugfs open file operation. It gets 2068 * the hba from the i_private field in @inode, allocates the necessary buffer 2069 * for the log, fills the buffer from the in-memory log for this hba, and then 2070 * returns a pointer to that log in the private_data field in @file. 2071 * 2072 * Returns: 2073 * This function returns zero if successful. On error it will return a negative 2074 * error value. 2075 **/ 2076 static int 2077 lpfc_debugfs_multixripools_open(struct inode *inode, struct file *file) 2078 { 2079 struct lpfc_hba *phba = inode->i_private; 2080 struct lpfc_debug *debug; 2081 int rc = -ENOMEM; 2082 2083 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2084 if (!debug) 2085 goto out; 2086 2087 /* Round to page boundary */ 2088 debug->buffer = kzalloc(LPFC_DUMP_MULTIXRIPOOL_SIZE, GFP_KERNEL); 2089 if (!debug->buffer) { 2090 kfree(debug); 2091 goto out; 2092 } 2093 2094 debug->len = lpfc_debugfs_multixripools_data( 2095 phba, debug->buffer, LPFC_DUMP_MULTIXRIPOOL_SIZE); 2096 2097 debug->i_private = inode->i_private; 2098 file->private_data = debug; 2099 2100 rc = 0; 2101 out: 2102 return rc; 2103 } 2104 2105 #ifdef LPFC_HDWQ_LOCK_STAT 2106 /** 2107 * lpfc_debugfs_lockstat_open - Open the lockstat debugfs buffer 2108 * @inode: The inode pointer that contains a vport pointer. 2109 * @file: The file pointer to attach the log output. 2110 * 2111 * Description: 2112 * This routine is the entry point for the debugfs open file operation. It gets 2113 * the vport from the i_private field in @inode, allocates the necessary buffer 2114 * for the log, fills the buffer from the in-memory log for this vport, and then 2115 * returns a pointer to that log in the private_data field in @file. 2116 * 2117 * Returns: 2118 * This function returns zero if successful. On error it will return a negative 2119 * error value. 2120 **/ 2121 static int 2122 lpfc_debugfs_lockstat_open(struct inode *inode, struct file *file) 2123 { 2124 struct lpfc_hba *phba = inode->i_private; 2125 struct lpfc_debug *debug; 2126 int rc = -ENOMEM; 2127 2128 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2129 if (!debug) 2130 goto out; 2131 2132 /* Round to page boundary */ 2133 debug->buffer = kmalloc(LPFC_HDWQINFO_SIZE, GFP_KERNEL); 2134 if (!debug->buffer) { 2135 kfree(debug); 2136 goto out; 2137 } 2138 2139 debug->len = lpfc_debugfs_lockstat_data(phba, debug->buffer, 2140 LPFC_HBQINFO_SIZE); 2141 file->private_data = debug; 2142 2143 rc = 0; 2144 out: 2145 return rc; 2146 } 2147 2148 static ssize_t 2149 lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf, 2150 size_t nbytes, loff_t *ppos) 2151 { 2152 struct lpfc_debug *debug = file->private_data; 2153 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2154 struct lpfc_sli4_hdw_queue *qp; 2155 char mybuf[64]; 2156 char *pbuf; 2157 int i; 2158 size_t bsize; 2159 2160 memset(mybuf, 0, sizeof(mybuf)); 2161 2162 bsize = min(nbytes, (sizeof(mybuf) - 1)); 2163 2164 if (copy_from_user(mybuf, buf, bsize)) 2165 return -EFAULT; 2166 pbuf = &mybuf[0]; 2167 2168 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2169 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2170 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2171 qp = &phba->sli4_hba.hdwq[i]; 2172 qp->lock_conflict.alloc_xri_get = 0; 2173 qp->lock_conflict.alloc_xri_put = 0; 2174 qp->lock_conflict.free_xri = 0; 2175 qp->lock_conflict.wq_access = 0; 2176 qp->lock_conflict.alloc_pvt_pool = 0; 2177 qp->lock_conflict.mv_from_pvt_pool = 0; 2178 qp->lock_conflict.mv_to_pub_pool = 0; 2179 qp->lock_conflict.mv_to_pvt_pool = 0; 2180 qp->lock_conflict.free_pvt_pool = 0; 2181 qp->lock_conflict.free_pub_pool = 0; 2182 qp->lock_conflict.wq_access = 0; 2183 } 2184 } 2185 return bsize; 2186 } 2187 #endif 2188 2189 static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba, 2190 char *buffer, int size) 2191 { 2192 int copied = 0; 2193 struct lpfc_dmabuf *dmabuf, *next; 2194 2195 memset(buffer, 0, size); 2196 2197 spin_lock_irq(&phba->ras_fwlog_lock); 2198 if (phba->ras_fwlog.state != ACTIVE) { 2199 spin_unlock_irq(&phba->ras_fwlog_lock); 2200 return -EINVAL; 2201 } 2202 spin_unlock_irq(&phba->ras_fwlog_lock); 2203 2204 list_for_each_entry_safe(dmabuf, next, 2205 &phba->ras_fwlog.fwlog_buff_list, list) { 2206 /* Check if copying will go over size and a '\0' char */ 2207 if ((copied + LPFC_RAS_MAX_ENTRY_SIZE) >= (size - 1)) { 2208 memcpy(buffer + copied, dmabuf->virt, 2209 size - copied - 1); 2210 copied += size - copied - 1; 2211 break; 2212 } 2213 memcpy(buffer + copied, dmabuf->virt, LPFC_RAS_MAX_ENTRY_SIZE); 2214 copied += LPFC_RAS_MAX_ENTRY_SIZE; 2215 } 2216 return copied; 2217 } 2218 2219 static int 2220 lpfc_debugfs_ras_log_release(struct inode *inode, struct file *file) 2221 { 2222 struct lpfc_debug *debug = file->private_data; 2223 2224 vfree(debug->buffer); 2225 kfree(debug); 2226 2227 return 0; 2228 } 2229 2230 /** 2231 * lpfc_debugfs_ras_log_open - Open the RAS log debugfs buffer 2232 * @inode: The inode pointer that contains a vport pointer. 2233 * @file: The file pointer to attach the log output. 2234 * 2235 * Description: 2236 * This routine is the entry point for the debugfs open file operation. It gets 2237 * the vport from the i_private field in @inode, allocates the necessary buffer 2238 * for the log, fills the buffer from the in-memory log for this vport, and then 2239 * returns a pointer to that log in the private_data field in @file. 2240 * 2241 * Returns: 2242 * This function returns zero if successful. On error it will return a negative 2243 * error value. 2244 **/ 2245 static int 2246 lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file) 2247 { 2248 struct lpfc_hba *phba = inode->i_private; 2249 struct lpfc_debug *debug; 2250 int size; 2251 int rc = -ENOMEM; 2252 2253 spin_lock_irq(&phba->ras_fwlog_lock); 2254 if (phba->ras_fwlog.state != ACTIVE) { 2255 spin_unlock_irq(&phba->ras_fwlog_lock); 2256 rc = -EINVAL; 2257 goto out; 2258 } 2259 spin_unlock_irq(&phba->ras_fwlog_lock); 2260 2261 if (check_mul_overflow(LPFC_RAS_MIN_BUFF_POST_SIZE, 2262 phba->cfg_ras_fwlog_buffsize, &size)) 2263 goto out; 2264 2265 debug = kzalloc(sizeof(*debug), GFP_KERNEL); 2266 if (!debug) 2267 goto out; 2268 2269 debug->buffer = vmalloc(size); 2270 if (!debug->buffer) 2271 goto free_debug; 2272 2273 debug->len = lpfc_debugfs_ras_log_data(phba, debug->buffer, size); 2274 if (debug->len < 0) { 2275 rc = -EINVAL; 2276 goto free_buffer; 2277 } 2278 file->private_data = debug; 2279 2280 return 0; 2281 2282 free_buffer: 2283 vfree(debug->buffer); 2284 free_debug: 2285 kfree(debug); 2286 out: 2287 return rc; 2288 } 2289 2290 /** 2291 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 2292 * @inode: The inode pointer that contains a vport pointer. 2293 * @file: The file pointer to attach the log output. 2294 * 2295 * Description: 2296 * This routine is the entry point for the debugfs open file operation. It gets 2297 * the vport from the i_private field in @inode, allocates the necessary buffer 2298 * for the log, fills the buffer from the in-memory log for this vport, and then 2299 * returns a pointer to that log in the private_data field in @file. 2300 * 2301 * Returns: 2302 * This function returns zero if successful. On error it will return a negative 2303 * error value. 2304 **/ 2305 static int 2306 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 2307 { 2308 struct lpfc_hba *phba = inode->i_private; 2309 struct lpfc_debug *debug; 2310 int rc = -ENOMEM; 2311 2312 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2313 if (!debug) 2314 goto out; 2315 2316 /* Round to page boundary */ 2317 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 2318 if (!debug->buffer) { 2319 kfree(debug); 2320 goto out; 2321 } 2322 2323 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 2324 LPFC_DUMPHBASLIM_SIZE); 2325 file->private_data = debug; 2326 2327 rc = 0; 2328 out: 2329 return rc; 2330 } 2331 2332 /** 2333 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 2334 * @inode: The inode pointer that contains a vport pointer. 2335 * @file: The file pointer to attach the log output. 2336 * 2337 * Description: 2338 * This routine is the entry point for the debugfs open file operation. It gets 2339 * the vport from the i_private field in @inode, allocates the necessary buffer 2340 * for the log, fills the buffer from the in-memory log for this vport, and then 2341 * returns a pointer to that log in the private_data field in @file. 2342 * 2343 * Returns: 2344 * This function returns zero if successful. On error it will return a negative 2345 * error value. 2346 **/ 2347 static int 2348 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 2349 { 2350 struct lpfc_hba *phba = inode->i_private; 2351 struct lpfc_debug *debug; 2352 int rc = -ENOMEM; 2353 2354 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2355 if (!debug) 2356 goto out; 2357 2358 /* Round to page boundary */ 2359 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 2360 if (!debug->buffer) { 2361 kfree(debug); 2362 goto out; 2363 } 2364 2365 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 2366 LPFC_DUMPHOSTSLIM_SIZE); 2367 file->private_data = debug; 2368 2369 rc = 0; 2370 out: 2371 return rc; 2372 } 2373 2374 static ssize_t 2375 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 2376 size_t nbytes, loff_t *ppos) 2377 { 2378 struct dentry *dent = file->f_path.dentry; 2379 struct lpfc_hba *phba = file->private_data; 2380 char cbuf[32]; 2381 uint64_t tmp = 0; 2382 int cnt = 0; 2383 2384 if (dent == phba->debug_writeGuard) 2385 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); 2386 else if (dent == phba->debug_writeApp) 2387 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); 2388 else if (dent == phba->debug_writeRef) 2389 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); 2390 else if (dent == phba->debug_readGuard) 2391 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); 2392 else if (dent == phba->debug_readApp) 2393 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); 2394 else if (dent == phba->debug_readRef) 2395 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); 2396 else if (dent == phba->debug_InjErrNPortID) 2397 cnt = scnprintf(cbuf, 32, "0x%06x\n", 2398 phba->lpfc_injerr_nportid); 2399 else if (dent == phba->debug_InjErrWWPN) { 2400 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); 2401 tmp = cpu_to_be64(tmp); 2402 cnt = scnprintf(cbuf, 32, "0x%016llx\n", tmp); 2403 } else if (dent == phba->debug_InjErrLBA) { 2404 if (phba->lpfc_injerr_lba == (sector_t)(-1)) 2405 cnt = scnprintf(cbuf, 32, "off\n"); 2406 else 2407 cnt = scnprintf(cbuf, 32, "0x%llx\n", 2408 (uint64_t) phba->lpfc_injerr_lba); 2409 } else 2410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2411 "0547 Unknown debugfs error injection entry\n"); 2412 2413 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 2414 } 2415 2416 static ssize_t 2417 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 2418 size_t nbytes, loff_t *ppos) 2419 { 2420 struct dentry *dent = file->f_path.dentry; 2421 struct lpfc_hba *phba = file->private_data; 2422 char dstbuf[33]; 2423 uint64_t tmp = 0; 2424 int size; 2425 2426 memset(dstbuf, 0, 33); 2427 size = (nbytes < 32) ? nbytes : 32; 2428 if (copy_from_user(dstbuf, buf, size)) 2429 return -EFAULT; 2430 2431 if (dent == phba->debug_InjErrLBA) { 2432 if ((dstbuf[0] == 'o') && (dstbuf[1] == 'f') && 2433 (dstbuf[2] == 'f')) 2434 tmp = (uint64_t)(-1); 2435 } 2436 2437 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) 2438 return -EINVAL; 2439 2440 if (dent == phba->debug_writeGuard) 2441 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 2442 else if (dent == phba->debug_writeApp) 2443 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 2444 else if (dent == phba->debug_writeRef) 2445 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 2446 else if (dent == phba->debug_readGuard) 2447 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 2448 else if (dent == phba->debug_readApp) 2449 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 2450 else if (dent == phba->debug_readRef) 2451 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 2452 else if (dent == phba->debug_InjErrLBA) 2453 phba->lpfc_injerr_lba = (sector_t)tmp; 2454 else if (dent == phba->debug_InjErrNPortID) 2455 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 2456 else if (dent == phba->debug_InjErrWWPN) { 2457 tmp = cpu_to_be64(tmp); 2458 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); 2459 } else 2460 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2461 "0548 Unknown debugfs error injection entry\n"); 2462 2463 return nbytes; 2464 } 2465 2466 static int 2467 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 2468 { 2469 return 0; 2470 } 2471 2472 /** 2473 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 2474 * @inode: The inode pointer that contains a vport pointer. 2475 * @file: The file pointer to attach the log output. 2476 * 2477 * Description: 2478 * This routine is the entry point for the debugfs open file operation. It gets 2479 * the vport from the i_private field in @inode, allocates the necessary buffer 2480 * for the log, fills the buffer from the in-memory log for this vport, and then 2481 * returns a pointer to that log in the private_data field in @file. 2482 * 2483 * Returns: 2484 * This function returns zero if successful. On error it will return a negative 2485 * error value. 2486 **/ 2487 static int 2488 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 2489 { 2490 struct lpfc_vport *vport = inode->i_private; 2491 struct lpfc_debug *debug; 2492 int rc = -ENOMEM; 2493 2494 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2495 if (!debug) 2496 goto out; 2497 2498 /* Round to page boundary */ 2499 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 2500 if (!debug->buffer) { 2501 kfree(debug); 2502 goto out; 2503 } 2504 2505 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 2506 LPFC_NODELIST_SIZE); 2507 file->private_data = debug; 2508 2509 rc = 0; 2510 out: 2511 return rc; 2512 } 2513 2514 /** 2515 * lpfc_debugfs_lseek - Seek through a debugfs file 2516 * @file: The file pointer to seek through. 2517 * @off: The offset to seek to or the amount to seek by. 2518 * @whence: Indicates how to seek. 2519 * 2520 * Description: 2521 * This routine is the entry point for the debugfs lseek file operation. The 2522 * @whence parameter indicates whether @off is the offset to directly seek to, 2523 * or if it is a value to seek forward or reverse by. This function figures out 2524 * what the new offset of the debugfs file will be and assigns that value to the 2525 * f_pos field of @file. 2526 * 2527 * Returns: 2528 * This function returns the new offset if successful and returns a negative 2529 * error if unable to process the seek. 2530 **/ 2531 static loff_t 2532 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 2533 { 2534 struct lpfc_debug *debug = file->private_data; 2535 return fixed_size_llseek(file, off, whence, debug->len); 2536 } 2537 2538 /** 2539 * lpfc_debugfs_read - Read a debugfs file 2540 * @file: The file pointer to read from. 2541 * @buf: The buffer to copy the data to. 2542 * @nbytes: The number of bytes to read. 2543 * @ppos: The position in the file to start reading from. 2544 * 2545 * Description: 2546 * This routine reads data from from the buffer indicated in the private_data 2547 * field of @file. It will start reading at @ppos and copy up to @nbytes of 2548 * data to @buf. 2549 * 2550 * Returns: 2551 * This function returns the amount of data that was read (this could be less 2552 * than @nbytes if the end of the file was reached) or a negative error value. 2553 **/ 2554 static ssize_t 2555 lpfc_debugfs_read(struct file *file, char __user *buf, 2556 size_t nbytes, loff_t *ppos) 2557 { 2558 struct lpfc_debug *debug = file->private_data; 2559 2560 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 2561 debug->len); 2562 } 2563 2564 /** 2565 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 2566 * @inode: The inode pointer that contains a vport pointer. (unused) 2567 * @file: The file pointer that contains the buffer to release. 2568 * 2569 * Description: 2570 * This routine frees the buffer that was allocated when the debugfs file was 2571 * opened. 2572 * 2573 * Returns: 2574 * This function returns zero. 2575 **/ 2576 static int 2577 lpfc_debugfs_release(struct inode *inode, struct file *file) 2578 { 2579 struct lpfc_debug *debug = file->private_data; 2580 2581 kfree(debug->buffer); 2582 kfree(debug); 2583 2584 return 0; 2585 } 2586 2587 /** 2588 * lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics 2589 * @file: The file pointer to read from. 2590 * @buf: The buffer to copy the user data from. 2591 * @nbytes: The number of bytes to get. 2592 * @ppos: The position in the file to start reading from. 2593 * 2594 * Description: 2595 * This routine clears multi-XRI pools statistics when buf contains "clear". 2596 * 2597 * Return Value: 2598 * It returns the @nbytges passing in from debugfs user space when successful. 2599 * In case of error conditions, it returns proper error code back to the user 2600 * space. 2601 **/ 2602 static ssize_t 2603 lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf, 2604 size_t nbytes, loff_t *ppos) 2605 { 2606 struct lpfc_debug *debug = file->private_data; 2607 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2608 char mybuf[64]; 2609 char *pbuf; 2610 u32 i; 2611 u32 hwq_count; 2612 struct lpfc_sli4_hdw_queue *qp; 2613 struct lpfc_multixri_pool *multixri_pool; 2614 2615 if (nbytes > sizeof(mybuf) - 1) 2616 nbytes = sizeof(mybuf) - 1; 2617 2618 memset(mybuf, 0, sizeof(mybuf)); 2619 2620 if (copy_from_user(mybuf, buf, nbytes)) 2621 return -EFAULT; 2622 pbuf = &mybuf[0]; 2623 2624 if ((strncmp(pbuf, "clear", strlen("clear"))) == 0) { 2625 hwq_count = phba->cfg_hdw_queue; 2626 for (i = 0; i < hwq_count; i++) { 2627 qp = &phba->sli4_hba.hdwq[i]; 2628 multixri_pool = qp->p_multixri_pool; 2629 if (!multixri_pool) 2630 continue; 2631 2632 qp->empty_io_bufs = 0; 2633 multixri_pool->pbl_empty_count = 0; 2634 #ifdef LPFC_MXP_STAT 2635 multixri_pool->above_limit_count = 0; 2636 multixri_pool->below_limit_count = 0; 2637 multixri_pool->stat_max_hwm = 0; 2638 multixri_pool->local_pbl_hit_count = 0; 2639 multixri_pool->other_pbl_hit_count = 0; 2640 2641 multixri_pool->stat_pbl_count = 0; 2642 multixri_pool->stat_pvt_count = 0; 2643 multixri_pool->stat_busy_count = 0; 2644 multixri_pool->stat_snapshot_taken = 0; 2645 #endif 2646 } 2647 return strlen(pbuf); 2648 } 2649 2650 return -EINVAL; 2651 } 2652 2653 static int 2654 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 2655 { 2656 struct lpfc_vport *vport = inode->i_private; 2657 struct lpfc_debug *debug; 2658 int rc = -ENOMEM; 2659 2660 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2661 if (!debug) 2662 goto out; 2663 2664 /* Round to page boundary */ 2665 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 2666 if (!debug->buffer) { 2667 kfree(debug); 2668 goto out; 2669 } 2670 2671 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 2672 LPFC_NVMESTAT_SIZE); 2673 2674 debug->i_private = inode->i_private; 2675 file->private_data = debug; 2676 2677 rc = 0; 2678 out: 2679 return rc; 2680 } 2681 2682 static ssize_t 2683 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 2684 size_t nbytes, loff_t *ppos) 2685 { 2686 struct lpfc_debug *debug = file->private_data; 2687 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2688 struct lpfc_hba *phba = vport->phba; 2689 struct lpfc_nvmet_tgtport *tgtp; 2690 char mybuf[64]; 2691 char *pbuf; 2692 2693 if (!phba->targetport) 2694 return -ENXIO; 2695 2696 if (nbytes > sizeof(mybuf) - 1) 2697 nbytes = sizeof(mybuf) - 1; 2698 2699 memset(mybuf, 0, sizeof(mybuf)); 2700 2701 if (copy_from_user(mybuf, buf, nbytes)) 2702 return -EFAULT; 2703 pbuf = &mybuf[0]; 2704 2705 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2706 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2707 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2708 atomic_set(&tgtp->rcv_ls_req_in, 0); 2709 atomic_set(&tgtp->rcv_ls_req_out, 0); 2710 atomic_set(&tgtp->rcv_ls_req_drop, 0); 2711 atomic_set(&tgtp->xmt_ls_abort, 0); 2712 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 2713 atomic_set(&tgtp->xmt_ls_rsp, 0); 2714 atomic_set(&tgtp->xmt_ls_drop, 0); 2715 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 2716 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 2717 2718 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 2719 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 2720 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 2721 atomic_set(&tgtp->xmt_fcp_drop, 0); 2722 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 2723 atomic_set(&tgtp->xmt_fcp_read, 0); 2724 atomic_set(&tgtp->xmt_fcp_write, 0); 2725 atomic_set(&tgtp->xmt_fcp_rsp, 0); 2726 atomic_set(&tgtp->xmt_fcp_release, 0); 2727 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 2728 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 2729 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 2730 2731 atomic_set(&tgtp->xmt_fcp_abort, 0); 2732 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 2733 atomic_set(&tgtp->xmt_abort_sol, 0); 2734 atomic_set(&tgtp->xmt_abort_unsol, 0); 2735 atomic_set(&tgtp->xmt_abort_rsp, 0); 2736 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 2737 } 2738 return nbytes; 2739 } 2740 2741 static int 2742 lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file) 2743 { 2744 struct lpfc_vport *vport = inode->i_private; 2745 struct lpfc_debug *debug; 2746 int rc = -ENOMEM; 2747 2748 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2749 if (!debug) 2750 goto out; 2751 2752 /* Round to page boundary */ 2753 debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL); 2754 if (!debug->buffer) { 2755 kfree(debug); 2756 goto out; 2757 } 2758 2759 debug->len = lpfc_debugfs_scsistat_data(vport, debug->buffer, 2760 LPFC_SCSISTAT_SIZE); 2761 2762 debug->i_private = inode->i_private; 2763 file->private_data = debug; 2764 2765 rc = 0; 2766 out: 2767 return rc; 2768 } 2769 2770 static ssize_t 2771 lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf, 2772 size_t nbytes, loff_t *ppos) 2773 { 2774 struct lpfc_debug *debug = file->private_data; 2775 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2776 struct lpfc_hba *phba = vport->phba; 2777 char mybuf[6] = {0}; 2778 int i; 2779 2780 if (copy_from_user(mybuf, buf, (nbytes >= sizeof(mybuf)) ? 2781 (sizeof(mybuf) - 1) : nbytes)) 2782 return -EFAULT; 2783 2784 if ((strncmp(&mybuf[0], "reset", strlen("reset")) == 0) || 2785 (strncmp(&mybuf[0], "zero", strlen("zero")) == 0)) { 2786 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2787 memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0, 2788 sizeof(phba->sli4_hba.hdwq[i].scsi_cstat)); 2789 } 2790 } 2791 2792 return nbytes; 2793 } 2794 2795 static int 2796 lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file) 2797 { 2798 struct lpfc_vport *vport = inode->i_private; 2799 struct lpfc_debug *debug; 2800 int rc = -ENOMEM; 2801 2802 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2803 if (!debug) 2804 goto out; 2805 2806 /* Round to page boundary */ 2807 debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL); 2808 if (!debug->buffer) { 2809 kfree(debug); 2810 goto out; 2811 } 2812 2813 debug->len = lpfc_debugfs_ioktime_data(vport, debug->buffer, 2814 LPFC_IOKTIME_SIZE); 2815 2816 debug->i_private = inode->i_private; 2817 file->private_data = debug; 2818 2819 rc = 0; 2820 out: 2821 return rc; 2822 } 2823 2824 static ssize_t 2825 lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf, 2826 size_t nbytes, loff_t *ppos) 2827 { 2828 struct lpfc_debug *debug = file->private_data; 2829 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2830 struct lpfc_hba *phba = vport->phba; 2831 char mybuf[64]; 2832 char *pbuf; 2833 2834 if (nbytes > sizeof(mybuf) - 1) 2835 nbytes = sizeof(mybuf) - 1; 2836 2837 memset(mybuf, 0, sizeof(mybuf)); 2838 2839 if (copy_from_user(mybuf, buf, nbytes)) 2840 return -EFAULT; 2841 pbuf = &mybuf[0]; 2842 2843 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2844 phba->ktime_data_samples = 0; 2845 phba->ktime_status_samples = 0; 2846 phba->ktime_seg1_total = 0; 2847 phba->ktime_seg1_max = 0; 2848 phba->ktime_seg1_min = 0xffffffff; 2849 phba->ktime_seg2_total = 0; 2850 phba->ktime_seg2_max = 0; 2851 phba->ktime_seg2_min = 0xffffffff; 2852 phba->ktime_seg3_total = 0; 2853 phba->ktime_seg3_max = 0; 2854 phba->ktime_seg3_min = 0xffffffff; 2855 phba->ktime_seg4_total = 0; 2856 phba->ktime_seg4_max = 0; 2857 phba->ktime_seg4_min = 0xffffffff; 2858 phba->ktime_seg5_total = 0; 2859 phba->ktime_seg5_max = 0; 2860 phba->ktime_seg5_min = 0xffffffff; 2861 phba->ktime_seg6_total = 0; 2862 phba->ktime_seg6_max = 0; 2863 phba->ktime_seg6_min = 0xffffffff; 2864 phba->ktime_seg7_total = 0; 2865 phba->ktime_seg7_max = 0; 2866 phba->ktime_seg7_min = 0xffffffff; 2867 phba->ktime_seg8_total = 0; 2868 phba->ktime_seg8_max = 0; 2869 phba->ktime_seg8_min = 0xffffffff; 2870 phba->ktime_seg9_total = 0; 2871 phba->ktime_seg9_max = 0; 2872 phba->ktime_seg9_min = 0xffffffff; 2873 phba->ktime_seg10_total = 0; 2874 phba->ktime_seg10_max = 0; 2875 phba->ktime_seg10_min = 0xffffffff; 2876 2877 phba->ktime_on = 1; 2878 return strlen(pbuf); 2879 } else if ((strncmp(pbuf, "off", 2880 sizeof("off") - 1) == 0)) { 2881 phba->ktime_on = 0; 2882 return strlen(pbuf); 2883 } else if ((strncmp(pbuf, "zero", 2884 sizeof("zero") - 1) == 0)) { 2885 phba->ktime_data_samples = 0; 2886 phba->ktime_status_samples = 0; 2887 phba->ktime_seg1_total = 0; 2888 phba->ktime_seg1_max = 0; 2889 phba->ktime_seg1_min = 0xffffffff; 2890 phba->ktime_seg2_total = 0; 2891 phba->ktime_seg2_max = 0; 2892 phba->ktime_seg2_min = 0xffffffff; 2893 phba->ktime_seg3_total = 0; 2894 phba->ktime_seg3_max = 0; 2895 phba->ktime_seg3_min = 0xffffffff; 2896 phba->ktime_seg4_total = 0; 2897 phba->ktime_seg4_max = 0; 2898 phba->ktime_seg4_min = 0xffffffff; 2899 phba->ktime_seg5_total = 0; 2900 phba->ktime_seg5_max = 0; 2901 phba->ktime_seg5_min = 0xffffffff; 2902 phba->ktime_seg6_total = 0; 2903 phba->ktime_seg6_max = 0; 2904 phba->ktime_seg6_min = 0xffffffff; 2905 phba->ktime_seg7_total = 0; 2906 phba->ktime_seg7_max = 0; 2907 phba->ktime_seg7_min = 0xffffffff; 2908 phba->ktime_seg8_total = 0; 2909 phba->ktime_seg8_max = 0; 2910 phba->ktime_seg8_min = 0xffffffff; 2911 phba->ktime_seg9_total = 0; 2912 phba->ktime_seg9_max = 0; 2913 phba->ktime_seg9_min = 0xffffffff; 2914 phba->ktime_seg10_total = 0; 2915 phba->ktime_seg10_max = 0; 2916 phba->ktime_seg10_min = 0xffffffff; 2917 return strlen(pbuf); 2918 } 2919 return -EINVAL; 2920 } 2921 2922 static int 2923 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2924 { 2925 struct lpfc_hba *phba = inode->i_private; 2926 struct lpfc_debug *debug; 2927 int rc = -ENOMEM; 2928 2929 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2930 if (!debug) 2931 goto out; 2932 2933 /* Round to page boundary */ 2934 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2935 if (!debug->buffer) { 2936 kfree(debug); 2937 goto out; 2938 } 2939 2940 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2941 LPFC_NVMEIO_TRC_SIZE); 2942 2943 debug->i_private = inode->i_private; 2944 file->private_data = debug; 2945 2946 rc = 0; 2947 out: 2948 return rc; 2949 } 2950 2951 static ssize_t 2952 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2953 size_t nbytes, loff_t *ppos) 2954 { 2955 struct lpfc_debug *debug = file->private_data; 2956 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2957 int i; 2958 unsigned long sz; 2959 char mybuf[64]; 2960 char *pbuf; 2961 2962 if (nbytes > sizeof(mybuf) - 1) 2963 nbytes = sizeof(mybuf) - 1; 2964 2965 memset(mybuf, 0, sizeof(mybuf)); 2966 2967 if (copy_from_user(mybuf, buf, nbytes)) 2968 return -EFAULT; 2969 pbuf = &mybuf[0]; 2970 2971 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2972 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2973 "0570 nvmeio_trc_off\n"); 2974 phba->nvmeio_trc_output_idx = 0; 2975 phba->nvmeio_trc_on = 0; 2976 return strlen(pbuf); 2977 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2978 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2979 "0571 nvmeio_trc_on\n"); 2980 phba->nvmeio_trc_output_idx = 0; 2981 phba->nvmeio_trc_on = 1; 2982 return strlen(pbuf); 2983 } 2984 2985 /* We must be off to allocate the trace buffer */ 2986 if (phba->nvmeio_trc_on != 0) 2987 return -EINVAL; 2988 2989 /* If not on or off, the parameter is the trace buffer size */ 2990 i = kstrtoul(pbuf, 0, &sz); 2991 if (i) 2992 return -EINVAL; 2993 phba->nvmeio_trc_size = (uint32_t)sz; 2994 2995 /* It must be a power of 2 - round down */ 2996 i = 0; 2997 while (sz > 1) { 2998 sz = sz >> 1; 2999 i++; 3000 } 3001 sz = (1 << i); 3002 if (phba->nvmeio_trc_size != sz) 3003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3004 "0572 nvmeio_trc_size changed to %ld\n", 3005 sz); 3006 phba->nvmeio_trc_size = (uint32_t)sz; 3007 3008 /* If one previously exists, free it */ 3009 kfree(phba->nvmeio_trc); 3010 3011 /* Allocate new trace buffer and initialize */ 3012 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 3013 sz), GFP_KERNEL); 3014 if (!phba->nvmeio_trc) { 3015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3016 "0573 Cannot create debugfs " 3017 "nvmeio_trc buffer\n"); 3018 return -ENOMEM; 3019 } 3020 atomic_set(&phba->nvmeio_trc_cnt, 0); 3021 phba->nvmeio_trc_on = 0; 3022 phba->nvmeio_trc_output_idx = 0; 3023 3024 return strlen(pbuf); 3025 } 3026 3027 static int 3028 lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file) 3029 { 3030 struct lpfc_vport *vport = inode->i_private; 3031 struct lpfc_debug *debug; 3032 int rc = -ENOMEM; 3033 3034 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3035 if (!debug) 3036 goto out; 3037 3038 /* Round to page boundary */ 3039 debug->buffer = kcalloc(1, LPFC_SCSISTAT_SIZE, GFP_KERNEL); 3040 if (!debug->buffer) { 3041 kfree(debug); 3042 goto out; 3043 } 3044 3045 debug->len = lpfc_debugfs_hdwqstat_data(vport, debug->buffer, 3046 LPFC_SCSISTAT_SIZE); 3047 3048 debug->i_private = inode->i_private; 3049 file->private_data = debug; 3050 3051 rc = 0; 3052 out: 3053 return rc; 3054 } 3055 3056 static ssize_t 3057 lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf, 3058 size_t nbytes, loff_t *ppos) 3059 { 3060 struct lpfc_debug *debug = file->private_data; 3061 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 3062 struct lpfc_hba *phba = vport->phba; 3063 struct lpfc_hdwq_stat *c_stat; 3064 char mybuf[64]; 3065 char *pbuf; 3066 int i; 3067 3068 if (nbytes > sizeof(mybuf) - 1) 3069 nbytes = sizeof(mybuf) - 1; 3070 3071 memset(mybuf, 0, sizeof(mybuf)); 3072 3073 if (copy_from_user(mybuf, buf, nbytes)) 3074 return -EFAULT; 3075 pbuf = &mybuf[0]; 3076 3077 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 3078 if (phba->nvmet_support) 3079 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3080 else 3081 phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO | 3082 LPFC_CHECK_SCSI_IO); 3083 return strlen(pbuf); 3084 } else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) { 3085 if (phba->nvmet_support) 3086 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3087 else 3088 phba->hdwqstat_on |= LPFC_CHECK_NVME_IO; 3089 return strlen(pbuf); 3090 } else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) { 3091 if (!phba->nvmet_support) 3092 phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO; 3093 return strlen(pbuf); 3094 } else if ((strncmp(pbuf, "nvme_off", sizeof("nvme_off") - 1) == 0)) { 3095 phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO | 3096 LPFC_CHECK_NVMET_IO); 3097 return strlen(pbuf); 3098 } else if ((strncmp(pbuf, "scsi_off", sizeof("scsi_off") - 1) == 0)) { 3099 phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO; 3100 return strlen(pbuf); 3101 } else if ((strncmp(pbuf, "off", 3102 sizeof("off") - 1) == 0)) { 3103 phba->hdwqstat_on = LPFC_CHECK_OFF; 3104 return strlen(pbuf); 3105 } else if ((strncmp(pbuf, "zero", 3106 sizeof("zero") - 1) == 0)) { 3107 for_each_present_cpu(i) { 3108 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i); 3109 c_stat->xmt_io = 0; 3110 c_stat->cmpl_io = 0; 3111 c_stat->rcv_io = 0; 3112 } 3113 return strlen(pbuf); 3114 } 3115 return -EINVAL; 3116 } 3117 3118 /* 3119 * --------------------------------- 3120 * iDiag debugfs file access methods 3121 * --------------------------------- 3122 * 3123 * All access methods are through the proper SLI4 PCI function's debugfs 3124 * iDiag directory: 3125 * 3126 * /sys/kernel/debug/lpfc/fn<#>/iDiag 3127 */ 3128 3129 /** 3130 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 3131 * @buf: The pointer to the user space buffer. 3132 * @nbytes: The number of bytes in the user space buffer. 3133 * @idiag_cmd: pointer to the idiag command struct. 3134 * 3135 * This routine reads data from debugfs user space buffer and parses the 3136 * buffer for getting the idiag command and arguments. The while space in 3137 * between the set of data is used as the parsing separator. 3138 * 3139 * This routine returns 0 when successful, it returns proper error code 3140 * back to the user space in error conditions. 3141 */ 3142 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 3143 struct lpfc_idiag_cmd *idiag_cmd) 3144 { 3145 char mybuf[64]; 3146 char *pbuf, *step_str; 3147 int i; 3148 size_t bsize; 3149 3150 memset(mybuf, 0, sizeof(mybuf)); 3151 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 3152 bsize = min(nbytes, (sizeof(mybuf)-1)); 3153 3154 if (copy_from_user(mybuf, buf, bsize)) 3155 return -EFAULT; 3156 pbuf = &mybuf[0]; 3157 step_str = strsep(&pbuf, "\t "); 3158 3159 /* The opcode must present */ 3160 if (!step_str) 3161 return -EINVAL; 3162 3163 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 3164 if (idiag_cmd->opcode == 0) 3165 return -EINVAL; 3166 3167 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 3168 step_str = strsep(&pbuf, "\t "); 3169 if (!step_str) 3170 return i; 3171 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 3172 } 3173 return i; 3174 } 3175 3176 /** 3177 * lpfc_idiag_open - idiag open debugfs 3178 * @inode: The inode pointer that contains a pointer to phba. 3179 * @file: The file pointer to attach the file operation. 3180 * 3181 * Description: 3182 * This routine is the entry point for the debugfs open file operation. It 3183 * gets the reference to phba from the i_private field in @inode, it then 3184 * allocates buffer for the file operation, performs the necessary PCI config 3185 * space read into the allocated buffer according to the idiag user command 3186 * setup, and then returns a pointer to buffer in the private_data field in 3187 * @file. 3188 * 3189 * Returns: 3190 * This function returns zero if successful. On error it will return an 3191 * negative error value. 3192 **/ 3193 static int 3194 lpfc_idiag_open(struct inode *inode, struct file *file) 3195 { 3196 struct lpfc_debug *debug; 3197 3198 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3199 if (!debug) 3200 return -ENOMEM; 3201 3202 debug->i_private = inode->i_private; 3203 debug->buffer = NULL; 3204 file->private_data = debug; 3205 3206 return 0; 3207 } 3208 3209 /** 3210 * lpfc_idiag_release - Release idiag access file operation 3211 * @inode: The inode pointer that contains a vport pointer. (unused) 3212 * @file: The file pointer that contains the buffer to release. 3213 * 3214 * Description: 3215 * This routine is the generic release routine for the idiag access file 3216 * operation, it frees the buffer that was allocated when the debugfs file 3217 * was opened. 3218 * 3219 * Returns: 3220 * This function returns zero. 3221 **/ 3222 static int 3223 lpfc_idiag_release(struct inode *inode, struct file *file) 3224 { 3225 struct lpfc_debug *debug = file->private_data; 3226 3227 /* Free the buffers to the file operation */ 3228 kfree(debug->buffer); 3229 kfree(debug); 3230 3231 return 0; 3232 } 3233 3234 /** 3235 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 3236 * @inode: The inode pointer that contains a vport pointer. (unused) 3237 * @file: The file pointer that contains the buffer to release. 3238 * 3239 * Description: 3240 * This routine frees the buffer that was allocated when the debugfs file 3241 * was opened. It also reset the fields in the idiag command struct in the 3242 * case of command for write operation. 3243 * 3244 * Returns: 3245 * This function returns zero. 3246 **/ 3247 static int 3248 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 3249 { 3250 struct lpfc_debug *debug = file->private_data; 3251 3252 if (debug->op == LPFC_IDIAG_OP_WR) { 3253 switch (idiag.cmd.opcode) { 3254 case LPFC_IDIAG_CMD_PCICFG_WR: 3255 case LPFC_IDIAG_CMD_PCICFG_ST: 3256 case LPFC_IDIAG_CMD_PCICFG_CL: 3257 case LPFC_IDIAG_CMD_QUEACC_WR: 3258 case LPFC_IDIAG_CMD_QUEACC_ST: 3259 case LPFC_IDIAG_CMD_QUEACC_CL: 3260 memset(&idiag, 0, sizeof(idiag)); 3261 break; 3262 default: 3263 break; 3264 } 3265 } 3266 3267 /* Free the buffers to the file operation */ 3268 kfree(debug->buffer); 3269 kfree(debug); 3270 3271 return 0; 3272 } 3273 3274 /** 3275 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 3276 * @file: The file pointer to read from. 3277 * @buf: The buffer to copy the data to. 3278 * @nbytes: The number of bytes to read. 3279 * @ppos: The position in the file to start reading from. 3280 * 3281 * Description: 3282 * This routine reads data from the @phba pci config space according to the 3283 * idiag command, and copies to user @buf. Depending on the PCI config space 3284 * read command setup, it does either a single register read of a byte 3285 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 3286 * registers from the 4K extended PCI config space. 3287 * 3288 * Returns: 3289 * This function returns the amount of data that was read (this could be less 3290 * than @nbytes if the end of the file was reached) or a negative error value. 3291 **/ 3292 static ssize_t 3293 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 3294 loff_t *ppos) 3295 { 3296 struct lpfc_debug *debug = file->private_data; 3297 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3298 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 3299 int where, count; 3300 char *pbuffer; 3301 struct pci_dev *pdev; 3302 uint32_t u32val; 3303 uint16_t u16val; 3304 uint8_t u8val; 3305 3306 pdev = phba->pcidev; 3307 if (!pdev) 3308 return 0; 3309 3310 /* This is a user read operation */ 3311 debug->op = LPFC_IDIAG_OP_RD; 3312 3313 if (!debug->buffer) 3314 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 3315 if (!debug->buffer) 3316 return 0; 3317 pbuffer = debug->buffer; 3318 3319 if (*ppos) 3320 return 0; 3321 3322 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3323 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3324 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3325 } else 3326 return 0; 3327 3328 /* Read single PCI config space register */ 3329 switch (count) { 3330 case SIZE_U8: /* byte (8 bits) */ 3331 pci_read_config_byte(pdev, where, &u8val); 3332 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3333 "%03x: %02x\n", where, u8val); 3334 break; 3335 case SIZE_U16: /* word (16 bits) */ 3336 pci_read_config_word(pdev, where, &u16val); 3337 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3338 "%03x: %04x\n", where, u16val); 3339 break; 3340 case SIZE_U32: /* double word (32 bits) */ 3341 pci_read_config_dword(pdev, where, &u32val); 3342 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3343 "%03x: %08x\n", where, u32val); 3344 break; 3345 case LPFC_PCI_CFG_BROWSE: /* browse all */ 3346 goto pcicfg_browse; 3347 default: 3348 /* illegal count */ 3349 len = 0; 3350 break; 3351 } 3352 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3353 3354 pcicfg_browse: 3355 3356 /* Browse all PCI config space registers */ 3357 offset_label = idiag.offset.last_rd; 3358 offset = offset_label; 3359 3360 /* Read PCI config space */ 3361 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3362 "%03x: ", offset_label); 3363 while (index > 0) { 3364 pci_read_config_dword(pdev, offset, &u32val); 3365 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3366 "%08x ", u32val); 3367 offset += sizeof(uint32_t); 3368 if (offset >= LPFC_PCI_CFG_SIZE) { 3369 len += scnprintf(pbuffer+len, 3370 LPFC_PCI_CFG_SIZE-len, "\n"); 3371 break; 3372 } 3373 index -= sizeof(uint32_t); 3374 if (!index) 3375 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3376 "\n"); 3377 else if (!(index % (8 * sizeof(uint32_t)))) { 3378 offset_label += (8 * sizeof(uint32_t)); 3379 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3380 "\n%03x: ", offset_label); 3381 } 3382 } 3383 3384 /* Set up the offset for next portion of pci cfg read */ 3385 if (index == 0) { 3386 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 3387 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 3388 idiag.offset.last_rd = 0; 3389 } else 3390 idiag.offset.last_rd = 0; 3391 3392 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3393 } 3394 3395 /** 3396 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 3397 * @file: The file pointer to read from. 3398 * @buf: The buffer to copy the user data from. 3399 * @nbytes: The number of bytes to get. 3400 * @ppos: The position in the file to start reading from. 3401 * 3402 * This routine get the debugfs idiag command struct from user space and 3403 * then perform the syntax check for PCI config space read or write command 3404 * accordingly. In the case of PCI config space read command, it sets up 3405 * the command in the idiag command struct for the debugfs read operation. 3406 * In the case of PCI config space write operation, it executes the write 3407 * operation into the PCI config space accordingly. 3408 * 3409 * It returns the @nbytges passing in from debugfs user space when successful. 3410 * In case of error conditions, it returns proper error code back to the user 3411 * space. 3412 */ 3413 static ssize_t 3414 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 3415 size_t nbytes, loff_t *ppos) 3416 { 3417 struct lpfc_debug *debug = file->private_data; 3418 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3419 uint32_t where, value, count; 3420 uint32_t u32val; 3421 uint16_t u16val; 3422 uint8_t u8val; 3423 struct pci_dev *pdev; 3424 int rc; 3425 3426 pdev = phba->pcidev; 3427 if (!pdev) 3428 return -EFAULT; 3429 3430 /* This is a user write operation */ 3431 debug->op = LPFC_IDIAG_OP_WR; 3432 3433 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3434 if (rc < 0) 3435 return rc; 3436 3437 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3438 /* Sanity check on PCI config read command line arguments */ 3439 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 3440 goto error_out; 3441 /* Read command from PCI config space, set up command fields */ 3442 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3443 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3444 if (count == LPFC_PCI_CFG_BROWSE) { 3445 if (where % sizeof(uint32_t)) 3446 goto error_out; 3447 /* Starting offset to browse */ 3448 idiag.offset.last_rd = where; 3449 } else if ((count != sizeof(uint8_t)) && 3450 (count != sizeof(uint16_t)) && 3451 (count != sizeof(uint32_t))) 3452 goto error_out; 3453 if (count == sizeof(uint8_t)) { 3454 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3455 goto error_out; 3456 if (where % sizeof(uint8_t)) 3457 goto error_out; 3458 } 3459 if (count == sizeof(uint16_t)) { 3460 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3461 goto error_out; 3462 if (where % sizeof(uint16_t)) 3463 goto error_out; 3464 } 3465 if (count == sizeof(uint32_t)) { 3466 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3467 goto error_out; 3468 if (where % sizeof(uint32_t)) 3469 goto error_out; 3470 } 3471 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 3472 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 3473 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3474 /* Sanity check on PCI config write command line arguments */ 3475 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 3476 goto error_out; 3477 /* Write command to PCI config space, read-modify-write */ 3478 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3479 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3480 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 3481 /* Sanity checks */ 3482 if ((count != sizeof(uint8_t)) && 3483 (count != sizeof(uint16_t)) && 3484 (count != sizeof(uint32_t))) 3485 goto error_out; 3486 if (count == sizeof(uint8_t)) { 3487 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3488 goto error_out; 3489 if (where % sizeof(uint8_t)) 3490 goto error_out; 3491 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3492 pci_write_config_byte(pdev, where, 3493 (uint8_t)value); 3494 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3495 rc = pci_read_config_byte(pdev, where, &u8val); 3496 if (!rc) { 3497 u8val |= (uint8_t)value; 3498 pci_write_config_byte(pdev, where, 3499 u8val); 3500 } 3501 } 3502 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3503 rc = pci_read_config_byte(pdev, where, &u8val); 3504 if (!rc) { 3505 u8val &= (uint8_t)(~value); 3506 pci_write_config_byte(pdev, where, 3507 u8val); 3508 } 3509 } 3510 } 3511 if (count == sizeof(uint16_t)) { 3512 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3513 goto error_out; 3514 if (where % sizeof(uint16_t)) 3515 goto error_out; 3516 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3517 pci_write_config_word(pdev, where, 3518 (uint16_t)value); 3519 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3520 rc = pci_read_config_word(pdev, where, &u16val); 3521 if (!rc) { 3522 u16val |= (uint16_t)value; 3523 pci_write_config_word(pdev, where, 3524 u16val); 3525 } 3526 } 3527 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3528 rc = pci_read_config_word(pdev, where, &u16val); 3529 if (!rc) { 3530 u16val &= (uint16_t)(~value); 3531 pci_write_config_word(pdev, where, 3532 u16val); 3533 } 3534 } 3535 } 3536 if (count == sizeof(uint32_t)) { 3537 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3538 goto error_out; 3539 if (where % sizeof(uint32_t)) 3540 goto error_out; 3541 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3542 pci_write_config_dword(pdev, where, value); 3543 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3544 rc = pci_read_config_dword(pdev, where, 3545 &u32val); 3546 if (!rc) { 3547 u32val |= value; 3548 pci_write_config_dword(pdev, where, 3549 u32val); 3550 } 3551 } 3552 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3553 rc = pci_read_config_dword(pdev, where, 3554 &u32val); 3555 if (!rc) { 3556 u32val &= ~value; 3557 pci_write_config_dword(pdev, where, 3558 u32val); 3559 } 3560 } 3561 } 3562 } else 3563 /* All other opecodes are illegal for now */ 3564 goto error_out; 3565 3566 return nbytes; 3567 error_out: 3568 memset(&idiag, 0, sizeof(idiag)); 3569 return -EINVAL; 3570 } 3571 3572 /** 3573 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 3574 * @file: The file pointer to read from. 3575 * @buf: The buffer to copy the data to. 3576 * @nbytes: The number of bytes to read. 3577 * @ppos: The position in the file to start reading from. 3578 * 3579 * Description: 3580 * This routine reads data from the @phba pci bar memory mapped space 3581 * according to the idiag command, and copies to user @buf. 3582 * 3583 * Returns: 3584 * This function returns the amount of data that was read (this could be less 3585 * than @nbytes if the end of the file was reached) or a negative error value. 3586 **/ 3587 static ssize_t 3588 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 3589 loff_t *ppos) 3590 { 3591 struct lpfc_debug *debug = file->private_data; 3592 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3593 int offset_label, offset, offset_run, len = 0, index; 3594 int bar_num, acc_range, bar_size; 3595 char *pbuffer; 3596 void __iomem *mem_mapped_bar; 3597 uint32_t if_type; 3598 struct pci_dev *pdev; 3599 uint32_t u32val; 3600 3601 pdev = phba->pcidev; 3602 if (!pdev) 3603 return 0; 3604 3605 /* This is a user read operation */ 3606 debug->op = LPFC_IDIAG_OP_RD; 3607 3608 if (!debug->buffer) 3609 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 3610 if (!debug->buffer) 3611 return 0; 3612 pbuffer = debug->buffer; 3613 3614 if (*ppos) 3615 return 0; 3616 3617 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3618 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3619 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3620 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3621 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3622 } else 3623 return 0; 3624 3625 if (acc_range == 0) 3626 return 0; 3627 3628 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3629 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3630 if (bar_num == IDIAG_BARACC_BAR_0) 3631 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3632 else if (bar_num == IDIAG_BARACC_BAR_1) 3633 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3634 else if (bar_num == IDIAG_BARACC_BAR_2) 3635 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3636 else 3637 return 0; 3638 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3639 if (bar_num == IDIAG_BARACC_BAR_0) 3640 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3641 else 3642 return 0; 3643 } else 3644 return 0; 3645 3646 /* Read single PCI bar space register */ 3647 if (acc_range == SINGLE_WORD) { 3648 offset_run = offset; 3649 u32val = readl(mem_mapped_bar + offset_run); 3650 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3651 "%05x: %08x\n", offset_run, u32val); 3652 } else 3653 goto baracc_browse; 3654 3655 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3656 3657 baracc_browse: 3658 3659 /* Browse all PCI bar space registers */ 3660 offset_label = idiag.offset.last_rd; 3661 offset_run = offset_label; 3662 3663 /* Read PCI bar memory mapped space */ 3664 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3665 "%05x: ", offset_label); 3666 index = LPFC_PCI_BAR_RD_SIZE; 3667 while (index > 0) { 3668 u32val = readl(mem_mapped_bar + offset_run); 3669 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3670 "%08x ", u32val); 3671 offset_run += sizeof(uint32_t); 3672 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3673 if (offset_run >= bar_size) { 3674 len += scnprintf(pbuffer+len, 3675 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3676 break; 3677 } 3678 } else { 3679 if (offset_run >= offset + 3680 (acc_range * sizeof(uint32_t))) { 3681 len += scnprintf(pbuffer+len, 3682 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3683 break; 3684 } 3685 } 3686 index -= sizeof(uint32_t); 3687 if (!index) 3688 len += scnprintf(pbuffer+len, 3689 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3690 else if (!(index % (8 * sizeof(uint32_t)))) { 3691 offset_label += (8 * sizeof(uint32_t)); 3692 len += scnprintf(pbuffer+len, 3693 LPFC_PCI_BAR_RD_BUF_SIZE-len, 3694 "\n%05x: ", offset_label); 3695 } 3696 } 3697 3698 /* Set up the offset for next portion of pci bar read */ 3699 if (index == 0) { 3700 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 3701 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3702 if (idiag.offset.last_rd >= bar_size) 3703 idiag.offset.last_rd = 0; 3704 } else { 3705 if (offset_run >= offset + 3706 (acc_range * sizeof(uint32_t))) 3707 idiag.offset.last_rd = offset; 3708 } 3709 } else { 3710 if (acc_range == LPFC_PCI_BAR_BROWSE) 3711 idiag.offset.last_rd = 0; 3712 else 3713 idiag.offset.last_rd = offset; 3714 } 3715 3716 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3717 } 3718 3719 /** 3720 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 3721 * @file: The file pointer to read from. 3722 * @buf: The buffer to copy the user data from. 3723 * @nbytes: The number of bytes to get. 3724 * @ppos: The position in the file to start reading from. 3725 * 3726 * This routine get the debugfs idiag command struct from user space and 3727 * then perform the syntax check for PCI bar memory mapped space read or 3728 * write command accordingly. In the case of PCI bar memory mapped space 3729 * read command, it sets up the command in the idiag command struct for 3730 * the debugfs read operation. In the case of PCI bar memorpy mapped space 3731 * write operation, it executes the write operation into the PCI bar memory 3732 * mapped space accordingly. 3733 * 3734 * It returns the @nbytges passing in from debugfs user space when successful. 3735 * In case of error conditions, it returns proper error code back to the user 3736 * space. 3737 */ 3738 static ssize_t 3739 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 3740 size_t nbytes, loff_t *ppos) 3741 { 3742 struct lpfc_debug *debug = file->private_data; 3743 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3744 uint32_t bar_num, bar_size, offset, value, acc_range; 3745 struct pci_dev *pdev; 3746 void __iomem *mem_mapped_bar; 3747 uint32_t if_type; 3748 uint32_t u32val; 3749 int rc; 3750 3751 pdev = phba->pcidev; 3752 if (!pdev) 3753 return -EFAULT; 3754 3755 /* This is a user write operation */ 3756 debug->op = LPFC_IDIAG_OP_WR; 3757 3758 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3759 if (rc < 0) 3760 return rc; 3761 3762 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3763 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3764 3765 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3766 if ((bar_num != IDIAG_BARACC_BAR_0) && 3767 (bar_num != IDIAG_BARACC_BAR_1) && 3768 (bar_num != IDIAG_BARACC_BAR_2)) 3769 goto error_out; 3770 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3771 if (bar_num != IDIAG_BARACC_BAR_0) 3772 goto error_out; 3773 } else 3774 goto error_out; 3775 3776 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3777 if (bar_num == IDIAG_BARACC_BAR_0) { 3778 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3779 LPFC_PCI_IF0_BAR0_SIZE; 3780 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3781 } else if (bar_num == IDIAG_BARACC_BAR_1) { 3782 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3783 LPFC_PCI_IF0_BAR1_SIZE; 3784 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3785 } else if (bar_num == IDIAG_BARACC_BAR_2) { 3786 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3787 LPFC_PCI_IF0_BAR2_SIZE; 3788 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3789 } else 3790 goto error_out; 3791 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3792 if (bar_num == IDIAG_BARACC_BAR_0) { 3793 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3794 LPFC_PCI_IF2_BAR0_SIZE; 3795 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3796 } else 3797 goto error_out; 3798 } else 3799 goto error_out; 3800 3801 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3802 if (offset % sizeof(uint32_t)) 3803 goto error_out; 3804 3805 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3806 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3807 /* Sanity check on PCI config read command line arguments */ 3808 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3809 goto error_out; 3810 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3811 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3812 if (offset > bar_size - sizeof(uint32_t)) 3813 goto error_out; 3814 /* Starting offset to browse */ 3815 idiag.offset.last_rd = offset; 3816 } else if (acc_range > SINGLE_WORD) { 3817 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3818 goto error_out; 3819 /* Starting offset to browse */ 3820 idiag.offset.last_rd = offset; 3821 } else if (acc_range != SINGLE_WORD) 3822 goto error_out; 3823 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3824 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3825 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3826 /* Sanity check on PCI bar write command line arguments */ 3827 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3828 goto error_out; 3829 /* Write command to PCI bar space, read-modify-write */ 3830 acc_range = SINGLE_WORD; 3831 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3832 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3833 writel(value, mem_mapped_bar + offset); 3834 readl(mem_mapped_bar + offset); 3835 } 3836 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3837 u32val = readl(mem_mapped_bar + offset); 3838 u32val |= value; 3839 writel(u32val, mem_mapped_bar + offset); 3840 readl(mem_mapped_bar + offset); 3841 } 3842 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3843 u32val = readl(mem_mapped_bar + offset); 3844 u32val &= ~value; 3845 writel(u32val, mem_mapped_bar + offset); 3846 readl(mem_mapped_bar + offset); 3847 } 3848 } else 3849 /* All other opecodes are illegal for now */ 3850 goto error_out; 3851 3852 return nbytes; 3853 error_out: 3854 memset(&idiag, 0, sizeof(idiag)); 3855 return -EINVAL; 3856 } 3857 3858 static int 3859 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3860 char *pbuffer, int len) 3861 { 3862 if (!qp) 3863 return len; 3864 3865 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3866 "\t\t%s WQ info: ", wqtype); 3867 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3868 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3869 qp->assoc_qid, qp->q_cnt_1, 3870 (unsigned long long)qp->q_cnt_4); 3871 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3872 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3873 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]", 3874 qp->queue_id, qp->entry_count, 3875 qp->entry_size, qp->host_index, 3876 qp->hba_index, qp->notify_interval); 3877 len += scnprintf(pbuffer + len, 3878 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3879 return len; 3880 } 3881 3882 static int 3883 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3884 int *len, int max_cnt, int cq_id) 3885 { 3886 struct lpfc_queue *qp; 3887 int qidx; 3888 3889 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 3890 qp = phba->sli4_hba.hdwq[qidx].io_wq; 3891 if (qp->assoc_qid != cq_id) 3892 continue; 3893 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3894 if (*len >= max_cnt) 3895 return 1; 3896 } 3897 return 0; 3898 } 3899 3900 static int 3901 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3902 char *pbuffer, int len) 3903 { 3904 if (!qp) 3905 return len; 3906 3907 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3908 "\t%s CQ info: ", cqtype); 3909 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3910 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3911 "xabt:x%x wq:x%llx]\n", 3912 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3913 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3914 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3915 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3916 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d]", 3917 qp->queue_id, qp->entry_count, 3918 qp->entry_size, qp->host_index, 3919 qp->notify_interval, qp->max_proc_limit); 3920 3921 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3922 "\n"); 3923 3924 return len; 3925 } 3926 3927 static int 3928 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3929 char *rqtype, char *pbuffer, int len) 3930 { 3931 if (!qp || !datqp) 3932 return len; 3933 3934 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3935 "\t\t%s RQ info: ", rqtype); 3936 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3937 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3938 "posted:x%x rcv:x%llx]\n", 3939 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3940 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3941 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3942 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3943 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3944 qp->queue_id, qp->entry_count, qp->entry_size, 3945 qp->host_index, qp->hba_index, qp->notify_interval); 3946 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3947 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3948 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3949 datqp->queue_id, datqp->entry_count, 3950 datqp->entry_size, datqp->host_index, 3951 datqp->hba_index, datqp->notify_interval); 3952 return len; 3953 } 3954 3955 static int 3956 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3957 int *len, int max_cnt, int eqidx, int eq_id) 3958 { 3959 struct lpfc_queue *qp; 3960 int rc; 3961 3962 qp = phba->sli4_hba.hdwq[eqidx].io_cq; 3963 3964 *len = __lpfc_idiag_print_cq(qp, "IO", pbuffer, *len); 3965 3966 /* Reset max counter */ 3967 qp->CQ_max_cqe = 0; 3968 3969 if (*len >= max_cnt) 3970 return 1; 3971 3972 rc = lpfc_idiag_wqs_for_cq(phba, "IO", pbuffer, len, 3973 max_cnt, qp->queue_id); 3974 if (rc) 3975 return 1; 3976 3977 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) { 3978 /* NVMET CQset */ 3979 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 3980 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 3981 3982 /* Reset max counter */ 3983 qp->CQ_max_cqe = 0; 3984 3985 if (*len >= max_cnt) 3986 return 1; 3987 3988 /* RQ header */ 3989 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 3990 *len = __lpfc_idiag_print_rqpair(qp, 3991 phba->sli4_hba.nvmet_mrq_data[eqidx], 3992 "NVMET MRQ", pbuffer, *len); 3993 3994 if (*len >= max_cnt) 3995 return 1; 3996 } 3997 3998 return 0; 3999 } 4000 4001 static int 4002 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 4003 char *pbuffer, int len) 4004 { 4005 if (!qp) 4006 return len; 4007 4008 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4009 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 4010 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n", 4011 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 4012 (unsigned long long)qp->q_cnt_4, qp->q_mode); 4013 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4014 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 4015 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]", 4016 qp->queue_id, qp->entry_count, qp->entry_size, 4017 qp->host_index, qp->notify_interval, 4018 qp->max_proc_limit, qp->chann); 4019 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4020 "\n"); 4021 4022 return len; 4023 } 4024 4025 /** 4026 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 4027 * @file: The file pointer to read from. 4028 * @buf: The buffer to copy the data to. 4029 * @nbytes: The number of bytes to read. 4030 * @ppos: The position in the file to start reading from. 4031 * 4032 * Description: 4033 * This routine reads data from the @phba SLI4 PCI function queue information, 4034 * and copies to user @buf. 4035 * This routine only returns 1 EQs worth of information. It remembers the last 4036 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 4037 * retrieve all EQs allocated for the phba. 4038 * 4039 * Returns: 4040 * This function returns the amount of data that was read (this could be less 4041 * than @nbytes if the end of the file was reached) or a negative error value. 4042 **/ 4043 static ssize_t 4044 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 4045 loff_t *ppos) 4046 { 4047 struct lpfc_debug *debug = file->private_data; 4048 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4049 char *pbuffer; 4050 int max_cnt, rc, x, len = 0; 4051 struct lpfc_queue *qp = NULL; 4052 4053 if (!debug->buffer) 4054 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 4055 if (!debug->buffer) 4056 return 0; 4057 pbuffer = debug->buffer; 4058 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 4059 4060 if (*ppos) 4061 return 0; 4062 4063 spin_lock_irq(&phba->hbalock); 4064 4065 /* Fast-path event queue */ 4066 if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) { 4067 4068 x = phba->lpfc_idiag_last_eq; 4069 phba->lpfc_idiag_last_eq++; 4070 if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue) 4071 phba->lpfc_idiag_last_eq = 0; 4072 4073 len += scnprintf(pbuffer + len, 4074 LPFC_QUE_INFO_GET_BUF_SIZE - len, 4075 "HDWQ %d out of %d HBA HDWQs\n", 4076 x, phba->cfg_hdw_queue); 4077 4078 /* Fast-path EQ */ 4079 qp = phba->sli4_hba.hdwq[x].hba_eq; 4080 if (!qp) 4081 goto out; 4082 4083 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 4084 4085 /* Reset max counter */ 4086 qp->EQ_max_eqe = 0; 4087 4088 if (len >= max_cnt) 4089 goto too_big; 4090 4091 /* will dump both fcp and nvme cqs/wqs for the eq */ 4092 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 4093 max_cnt, x, qp->queue_id); 4094 if (rc) 4095 goto too_big; 4096 4097 /* Only EQ 0 has slow path CQs configured */ 4098 if (x) 4099 goto out; 4100 4101 /* Slow-path mailbox CQ */ 4102 qp = phba->sli4_hba.mbx_cq; 4103 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 4104 if (len >= max_cnt) 4105 goto too_big; 4106 4107 /* Slow-path MBOX MQ */ 4108 qp = phba->sli4_hba.mbx_wq; 4109 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 4110 if (len >= max_cnt) 4111 goto too_big; 4112 4113 /* Slow-path ELS response CQ */ 4114 qp = phba->sli4_hba.els_cq; 4115 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 4116 /* Reset max counter */ 4117 if (qp) 4118 qp->CQ_max_cqe = 0; 4119 if (len >= max_cnt) 4120 goto too_big; 4121 4122 /* Slow-path ELS WQ */ 4123 qp = phba->sli4_hba.els_wq; 4124 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 4125 if (len >= max_cnt) 4126 goto too_big; 4127 4128 qp = phba->sli4_hba.hdr_rq; 4129 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 4130 "ELS RQpair", pbuffer, len); 4131 if (len >= max_cnt) 4132 goto too_big; 4133 4134 /* Slow-path NVME LS response CQ */ 4135 qp = phba->sli4_hba.nvmels_cq; 4136 len = __lpfc_idiag_print_cq(qp, "NVME LS", 4137 pbuffer, len); 4138 /* Reset max counter */ 4139 if (qp) 4140 qp->CQ_max_cqe = 0; 4141 if (len >= max_cnt) 4142 goto too_big; 4143 4144 /* Slow-path NVME LS WQ */ 4145 qp = phba->sli4_hba.nvmels_wq; 4146 len = __lpfc_idiag_print_wq(qp, "NVME LS", 4147 pbuffer, len); 4148 if (len >= max_cnt) 4149 goto too_big; 4150 4151 goto out; 4152 } 4153 4154 spin_unlock_irq(&phba->hbalock); 4155 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4156 4157 too_big: 4158 len += scnprintf(pbuffer + len, 4159 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 4160 out: 4161 spin_unlock_irq(&phba->hbalock); 4162 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4163 } 4164 4165 /** 4166 * lpfc_idiag_que_param_check - queue access command parameter sanity check 4167 * @q: The pointer to queue structure. 4168 * @index: The index into a queue entry. 4169 * @count: The number of queue entries to access. 4170 * 4171 * Description: 4172 * The routine performs sanity check on device queue access method commands. 4173 * 4174 * Returns: 4175 * This function returns -EINVAL when fails the sanity check, otherwise, it 4176 * returns 0. 4177 **/ 4178 static int 4179 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 4180 { 4181 /* Only support single entry read or browsing */ 4182 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 4183 return -EINVAL; 4184 if (index > q->entry_count - 1) 4185 return -EINVAL; 4186 return 0; 4187 } 4188 4189 /** 4190 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 4191 * @pbuffer: The pointer to buffer to copy the read data into. 4192 * @len: Length of the buffer. 4193 * @pque: The pointer to the queue to be read. 4194 * @index: The index into the queue entry. 4195 * 4196 * Description: 4197 * This routine reads out a single entry from the given queue's index location 4198 * and copies it into the buffer provided. 4199 * 4200 * Returns: 4201 * This function returns 0 when it fails, otherwise, it returns the length of 4202 * the data read into the buffer provided. 4203 **/ 4204 static int 4205 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 4206 uint32_t index) 4207 { 4208 int offset, esize; 4209 uint32_t *pentry; 4210 4211 if (!pbuffer || !pque) 4212 return 0; 4213 4214 esize = pque->entry_size; 4215 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4216 "QE-INDEX[%04d]:\n", index); 4217 4218 offset = 0; 4219 pentry = lpfc_sli4_qe(pque, index); 4220 while (esize > 0) { 4221 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4222 "%08x ", *pentry); 4223 pentry++; 4224 offset += sizeof(uint32_t); 4225 esize -= sizeof(uint32_t); 4226 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 4227 len += scnprintf(pbuffer+len, 4228 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4229 } 4230 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4231 4232 return len; 4233 } 4234 4235 /** 4236 * lpfc_idiag_queacc_read - idiag debugfs read port queue 4237 * @file: The file pointer to read from. 4238 * @buf: The buffer to copy the data to. 4239 * @nbytes: The number of bytes to read. 4240 * @ppos: The position in the file to start reading from. 4241 * 4242 * Description: 4243 * This routine reads data from the @phba device queue memory according to the 4244 * idiag command, and copies to user @buf. Depending on the queue dump read 4245 * command setup, it does either a single queue entry read or browing through 4246 * all entries of the queue. 4247 * 4248 * Returns: 4249 * This function returns the amount of data that was read (this could be less 4250 * than @nbytes if the end of the file was reached) or a negative error value. 4251 **/ 4252 static ssize_t 4253 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 4254 loff_t *ppos) 4255 { 4256 struct lpfc_debug *debug = file->private_data; 4257 uint32_t last_index, index, count; 4258 struct lpfc_queue *pque = NULL; 4259 char *pbuffer; 4260 int len = 0; 4261 4262 /* This is a user read operation */ 4263 debug->op = LPFC_IDIAG_OP_RD; 4264 4265 if (!debug->buffer) 4266 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 4267 if (!debug->buffer) 4268 return 0; 4269 pbuffer = debug->buffer; 4270 4271 if (*ppos) 4272 return 0; 4273 4274 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4275 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4276 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4277 pque = (struct lpfc_queue *)idiag.ptr_private; 4278 } else 4279 return 0; 4280 4281 /* Browse the queue starting from index */ 4282 if (count == LPFC_QUE_ACC_BROWSE) 4283 goto que_browse; 4284 4285 /* Read a single entry from the queue */ 4286 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4287 4288 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4289 4290 que_browse: 4291 4292 /* Browse all entries from the queue */ 4293 last_index = idiag.offset.last_rd; 4294 index = last_index; 4295 4296 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 4297 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4298 index++; 4299 if (index > pque->entry_count - 1) 4300 break; 4301 } 4302 4303 /* Set up the offset for next portion of pci cfg read */ 4304 if (index > pque->entry_count - 1) 4305 index = 0; 4306 idiag.offset.last_rd = index; 4307 4308 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4309 } 4310 4311 /** 4312 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 4313 * @file: The file pointer to read from. 4314 * @buf: The buffer to copy the user data from. 4315 * @nbytes: The number of bytes to get. 4316 * @ppos: The position in the file to start reading from. 4317 * 4318 * This routine get the debugfs idiag command struct from user space and then 4319 * perform the syntax check for port queue read (dump) or write (set) command 4320 * accordingly. In the case of port queue read command, it sets up the command 4321 * in the idiag command struct for the following debugfs read operation. In 4322 * the case of port queue write operation, it executes the write operation 4323 * into the port queue entry accordingly. 4324 * 4325 * It returns the @nbytges passing in from debugfs user space when successful. 4326 * In case of error conditions, it returns proper error code back to the user 4327 * space. 4328 **/ 4329 static ssize_t 4330 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 4331 size_t nbytes, loff_t *ppos) 4332 { 4333 struct lpfc_debug *debug = file->private_data; 4334 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4335 uint32_t qidx, quetp, queid, index, count, offset, value; 4336 uint32_t *pentry; 4337 struct lpfc_queue *pque, *qp; 4338 int rc; 4339 4340 /* This is a user write operation */ 4341 debug->op = LPFC_IDIAG_OP_WR; 4342 4343 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4344 if (rc < 0) 4345 return rc; 4346 4347 /* Get and sanity check on command feilds */ 4348 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 4349 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 4350 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4351 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4352 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 4353 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 4354 4355 /* Sanity check on command line arguments */ 4356 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4357 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4358 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4359 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 4360 goto error_out; 4361 if (count != 1) 4362 goto error_out; 4363 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4364 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 4365 goto error_out; 4366 } else 4367 goto error_out; 4368 4369 switch (quetp) { 4370 case LPFC_IDIAG_EQ: 4371 /* HBA event queue */ 4372 if (phba->sli4_hba.hdwq) { 4373 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4374 qp = phba->sli4_hba.hdwq[qidx].hba_eq; 4375 if (qp && qp->queue_id == queid) { 4376 /* Sanity check */ 4377 rc = lpfc_idiag_que_param_check(qp, 4378 index, count); 4379 if (rc) 4380 goto error_out; 4381 idiag.ptr_private = qp; 4382 goto pass_check; 4383 } 4384 } 4385 } 4386 goto error_out; 4387 4388 case LPFC_IDIAG_CQ: 4389 /* MBX complete queue */ 4390 if (phba->sli4_hba.mbx_cq && 4391 phba->sli4_hba.mbx_cq->queue_id == queid) { 4392 /* Sanity check */ 4393 rc = lpfc_idiag_que_param_check( 4394 phba->sli4_hba.mbx_cq, index, count); 4395 if (rc) 4396 goto error_out; 4397 idiag.ptr_private = phba->sli4_hba.mbx_cq; 4398 goto pass_check; 4399 } 4400 /* ELS complete queue */ 4401 if (phba->sli4_hba.els_cq && 4402 phba->sli4_hba.els_cq->queue_id == queid) { 4403 /* Sanity check */ 4404 rc = lpfc_idiag_que_param_check( 4405 phba->sli4_hba.els_cq, index, count); 4406 if (rc) 4407 goto error_out; 4408 idiag.ptr_private = phba->sli4_hba.els_cq; 4409 goto pass_check; 4410 } 4411 /* NVME LS complete queue */ 4412 if (phba->sli4_hba.nvmels_cq && 4413 phba->sli4_hba.nvmels_cq->queue_id == queid) { 4414 /* Sanity check */ 4415 rc = lpfc_idiag_que_param_check( 4416 phba->sli4_hba.nvmels_cq, index, count); 4417 if (rc) 4418 goto error_out; 4419 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 4420 goto pass_check; 4421 } 4422 /* FCP complete queue */ 4423 if (phba->sli4_hba.hdwq) { 4424 for (qidx = 0; qidx < phba->cfg_hdw_queue; 4425 qidx++) { 4426 qp = phba->sli4_hba.hdwq[qidx].io_cq; 4427 if (qp && qp->queue_id == queid) { 4428 /* Sanity check */ 4429 rc = lpfc_idiag_que_param_check( 4430 qp, index, count); 4431 if (rc) 4432 goto error_out; 4433 idiag.ptr_private = qp; 4434 goto pass_check; 4435 } 4436 } 4437 } 4438 goto error_out; 4439 4440 case LPFC_IDIAG_MQ: 4441 /* MBX work queue */ 4442 if (phba->sli4_hba.mbx_wq && 4443 phba->sli4_hba.mbx_wq->queue_id == queid) { 4444 /* Sanity check */ 4445 rc = lpfc_idiag_que_param_check( 4446 phba->sli4_hba.mbx_wq, index, count); 4447 if (rc) 4448 goto error_out; 4449 idiag.ptr_private = phba->sli4_hba.mbx_wq; 4450 goto pass_check; 4451 } 4452 goto error_out; 4453 4454 case LPFC_IDIAG_WQ: 4455 /* ELS work queue */ 4456 if (phba->sli4_hba.els_wq && 4457 phba->sli4_hba.els_wq->queue_id == queid) { 4458 /* Sanity check */ 4459 rc = lpfc_idiag_que_param_check( 4460 phba->sli4_hba.els_wq, index, count); 4461 if (rc) 4462 goto error_out; 4463 idiag.ptr_private = phba->sli4_hba.els_wq; 4464 goto pass_check; 4465 } 4466 /* NVME LS work queue */ 4467 if (phba->sli4_hba.nvmels_wq && 4468 phba->sli4_hba.nvmels_wq->queue_id == queid) { 4469 /* Sanity check */ 4470 rc = lpfc_idiag_que_param_check( 4471 phba->sli4_hba.nvmels_wq, index, count); 4472 if (rc) 4473 goto error_out; 4474 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 4475 goto pass_check; 4476 } 4477 4478 if (phba->sli4_hba.hdwq) { 4479 /* FCP/SCSI work queue */ 4480 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4481 qp = phba->sli4_hba.hdwq[qidx].io_wq; 4482 if (qp && qp->queue_id == queid) { 4483 /* Sanity check */ 4484 rc = lpfc_idiag_que_param_check( 4485 qp, index, count); 4486 if (rc) 4487 goto error_out; 4488 idiag.ptr_private = qp; 4489 goto pass_check; 4490 } 4491 } 4492 } 4493 goto error_out; 4494 4495 case LPFC_IDIAG_RQ: 4496 /* HDR queue */ 4497 if (phba->sli4_hba.hdr_rq && 4498 phba->sli4_hba.hdr_rq->queue_id == queid) { 4499 /* Sanity check */ 4500 rc = lpfc_idiag_que_param_check( 4501 phba->sli4_hba.hdr_rq, index, count); 4502 if (rc) 4503 goto error_out; 4504 idiag.ptr_private = phba->sli4_hba.hdr_rq; 4505 goto pass_check; 4506 } 4507 /* DAT queue */ 4508 if (phba->sli4_hba.dat_rq && 4509 phba->sli4_hba.dat_rq->queue_id == queid) { 4510 /* Sanity check */ 4511 rc = lpfc_idiag_que_param_check( 4512 phba->sli4_hba.dat_rq, index, count); 4513 if (rc) 4514 goto error_out; 4515 idiag.ptr_private = phba->sli4_hba.dat_rq; 4516 goto pass_check; 4517 } 4518 goto error_out; 4519 default: 4520 goto error_out; 4521 } 4522 4523 pass_check: 4524 4525 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4526 if (count == LPFC_QUE_ACC_BROWSE) 4527 idiag.offset.last_rd = index; 4528 } 4529 4530 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4531 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4532 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4533 /* Additional sanity checks on write operation */ 4534 pque = (struct lpfc_queue *)idiag.ptr_private; 4535 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 4536 goto error_out; 4537 pentry = lpfc_sli4_qe(pque, index); 4538 pentry += offset; 4539 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 4540 *pentry = value; 4541 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 4542 *pentry |= value; 4543 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 4544 *pentry &= ~value; 4545 } 4546 return nbytes; 4547 4548 error_out: 4549 /* Clean out command structure on command error out */ 4550 memset(&idiag, 0, sizeof(idiag)); 4551 return -EINVAL; 4552 } 4553 4554 /** 4555 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 4556 * @phba: The pointer to hba structure. 4557 * @pbuffer: The pointer to the buffer to copy the data to. 4558 * @len: The length of bytes to copied. 4559 * @drbregid: The id to doorbell registers. 4560 * 4561 * Description: 4562 * This routine reads a doorbell register and copies its content to the 4563 * user buffer pointed to by @pbuffer. 4564 * 4565 * Returns: 4566 * This function returns the amount of data that was copied into @pbuffer. 4567 **/ 4568 static int 4569 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4570 int len, uint32_t drbregid) 4571 { 4572 4573 if (!pbuffer) 4574 return 0; 4575 4576 switch (drbregid) { 4577 case LPFC_DRB_EQ: 4578 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len, 4579 "EQ-DRB-REG: 0x%08x\n", 4580 readl(phba->sli4_hba.EQDBregaddr)); 4581 break; 4582 case LPFC_DRB_CQ: 4583 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len, 4584 "CQ-DRB-REG: 0x%08x\n", 4585 readl(phba->sli4_hba.CQDBregaddr)); 4586 break; 4587 case LPFC_DRB_MQ: 4588 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4589 "MQ-DRB-REG: 0x%08x\n", 4590 readl(phba->sli4_hba.MQDBregaddr)); 4591 break; 4592 case LPFC_DRB_WQ: 4593 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4594 "WQ-DRB-REG: 0x%08x\n", 4595 readl(phba->sli4_hba.WQDBregaddr)); 4596 break; 4597 case LPFC_DRB_RQ: 4598 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4599 "RQ-DRB-REG: 0x%08x\n", 4600 readl(phba->sli4_hba.RQDBregaddr)); 4601 break; 4602 default: 4603 break; 4604 } 4605 4606 return len; 4607 } 4608 4609 /** 4610 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 4611 * @file: The file pointer to read from. 4612 * @buf: The buffer to copy the data to. 4613 * @nbytes: The number of bytes to read. 4614 * @ppos: The position in the file to start reading from. 4615 * 4616 * Description: 4617 * This routine reads data from the @phba device doorbell register according 4618 * to the idiag command, and copies to user @buf. Depending on the doorbell 4619 * register read command setup, it does either a single doorbell register 4620 * read or dump all doorbell registers. 4621 * 4622 * Returns: 4623 * This function returns the amount of data that was read (this could be less 4624 * than @nbytes if the end of the file was reached) or a negative error value. 4625 **/ 4626 static ssize_t 4627 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 4628 loff_t *ppos) 4629 { 4630 struct lpfc_debug *debug = file->private_data; 4631 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4632 uint32_t drb_reg_id, i; 4633 char *pbuffer; 4634 int len = 0; 4635 4636 /* This is a user read operation */ 4637 debug->op = LPFC_IDIAG_OP_RD; 4638 4639 if (!debug->buffer) 4640 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 4641 if (!debug->buffer) 4642 return 0; 4643 pbuffer = debug->buffer; 4644 4645 if (*ppos) 4646 return 0; 4647 4648 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 4649 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4650 else 4651 return 0; 4652 4653 if (drb_reg_id == LPFC_DRB_ACC_ALL) 4654 for (i = 1; i <= LPFC_DRB_MAX; i++) 4655 len = lpfc_idiag_drbacc_read_reg(phba, 4656 pbuffer, len, i); 4657 else 4658 len = lpfc_idiag_drbacc_read_reg(phba, 4659 pbuffer, len, drb_reg_id); 4660 4661 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4662 } 4663 4664 /** 4665 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 4666 * @file: The file pointer to read from. 4667 * @buf: The buffer to copy the user data from. 4668 * @nbytes: The number of bytes to get. 4669 * @ppos: The position in the file to start reading from. 4670 * 4671 * This routine get the debugfs idiag command struct from user space and then 4672 * perform the syntax check for port doorbell register read (dump) or write 4673 * (set) command accordingly. In the case of port queue read command, it sets 4674 * up the command in the idiag command struct for the following debugfs read 4675 * operation. In the case of port doorbell register write operation, it 4676 * executes the write operation into the port doorbell register accordingly. 4677 * 4678 * It returns the @nbytges passing in from debugfs user space when successful. 4679 * In case of error conditions, it returns proper error code back to the user 4680 * space. 4681 **/ 4682 static ssize_t 4683 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 4684 size_t nbytes, loff_t *ppos) 4685 { 4686 struct lpfc_debug *debug = file->private_data; 4687 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4688 uint32_t drb_reg_id, value, reg_val = 0; 4689 void __iomem *drb_reg; 4690 int rc; 4691 4692 /* This is a user write operation */ 4693 debug->op = LPFC_IDIAG_OP_WR; 4694 4695 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4696 if (rc < 0) 4697 return rc; 4698 4699 /* Sanity check on command line arguments */ 4700 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4701 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4702 4703 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4704 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4705 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4706 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4707 goto error_out; 4708 if (drb_reg_id > LPFC_DRB_MAX) 4709 goto error_out; 4710 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4711 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4712 goto error_out; 4713 if ((drb_reg_id > LPFC_DRB_MAX) && 4714 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4715 goto error_out; 4716 } else 4717 goto error_out; 4718 4719 /* Perform the write access operation */ 4720 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4721 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4722 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4723 switch (drb_reg_id) { 4724 case LPFC_DRB_EQ: 4725 drb_reg = phba->sli4_hba.EQDBregaddr; 4726 break; 4727 case LPFC_DRB_CQ: 4728 drb_reg = phba->sli4_hba.CQDBregaddr; 4729 break; 4730 case LPFC_DRB_MQ: 4731 drb_reg = phba->sli4_hba.MQDBregaddr; 4732 break; 4733 case LPFC_DRB_WQ: 4734 drb_reg = phba->sli4_hba.WQDBregaddr; 4735 break; 4736 case LPFC_DRB_RQ: 4737 drb_reg = phba->sli4_hba.RQDBregaddr; 4738 break; 4739 default: 4740 goto error_out; 4741 } 4742 4743 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4744 reg_val = value; 4745 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4746 reg_val = readl(drb_reg); 4747 reg_val |= value; 4748 } 4749 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4750 reg_val = readl(drb_reg); 4751 reg_val &= ~value; 4752 } 4753 writel(reg_val, drb_reg); 4754 readl(drb_reg); /* flush */ 4755 } 4756 return nbytes; 4757 4758 error_out: 4759 /* Clean out command structure on command error out */ 4760 memset(&idiag, 0, sizeof(idiag)); 4761 return -EINVAL; 4762 } 4763 4764 /** 4765 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4766 * @phba: The pointer to hba structure. 4767 * @pbuffer: The pointer to the buffer to copy the data to. 4768 * @len: The length of bytes to copied. 4769 * @ctlregid: The id to doorbell registers. 4770 * 4771 * Description: 4772 * This routine reads a control register and copies its content to the 4773 * user buffer pointed to by @pbuffer. 4774 * 4775 * Returns: 4776 * This function returns the amount of data that was copied into @pbuffer. 4777 **/ 4778 static int 4779 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4780 int len, uint32_t ctlregid) 4781 { 4782 4783 if (!pbuffer) 4784 return 0; 4785 4786 switch (ctlregid) { 4787 case LPFC_CTL_PORT_SEM: 4788 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4789 "Port SemReg: 0x%08x\n", 4790 readl(phba->sli4_hba.conf_regs_memmap_p + 4791 LPFC_CTL_PORT_SEM_OFFSET)); 4792 break; 4793 case LPFC_CTL_PORT_STA: 4794 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4795 "Port StaReg: 0x%08x\n", 4796 readl(phba->sli4_hba.conf_regs_memmap_p + 4797 LPFC_CTL_PORT_STA_OFFSET)); 4798 break; 4799 case LPFC_CTL_PORT_CTL: 4800 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4801 "Port CtlReg: 0x%08x\n", 4802 readl(phba->sli4_hba.conf_regs_memmap_p + 4803 LPFC_CTL_PORT_CTL_OFFSET)); 4804 break; 4805 case LPFC_CTL_PORT_ER1: 4806 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4807 "Port Er1Reg: 0x%08x\n", 4808 readl(phba->sli4_hba.conf_regs_memmap_p + 4809 LPFC_CTL_PORT_ER1_OFFSET)); 4810 break; 4811 case LPFC_CTL_PORT_ER2: 4812 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4813 "Port Er2Reg: 0x%08x\n", 4814 readl(phba->sli4_hba.conf_regs_memmap_p + 4815 LPFC_CTL_PORT_ER2_OFFSET)); 4816 break; 4817 case LPFC_CTL_PDEV_CTL: 4818 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4819 "PDev CtlReg: 0x%08x\n", 4820 readl(phba->sli4_hba.conf_regs_memmap_p + 4821 LPFC_CTL_PDEV_CTL_OFFSET)); 4822 break; 4823 default: 4824 break; 4825 } 4826 return len; 4827 } 4828 4829 /** 4830 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4831 * @file: The file pointer to read from. 4832 * @buf: The buffer to copy the data to. 4833 * @nbytes: The number of bytes to read. 4834 * @ppos: The position in the file to start reading from. 4835 * 4836 * Description: 4837 * This routine reads data from the @phba port and device registers according 4838 * to the idiag command, and copies to user @buf. 4839 * 4840 * Returns: 4841 * This function returns the amount of data that was read (this could be less 4842 * than @nbytes if the end of the file was reached) or a negative error value. 4843 **/ 4844 static ssize_t 4845 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4846 loff_t *ppos) 4847 { 4848 struct lpfc_debug *debug = file->private_data; 4849 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4850 uint32_t ctl_reg_id, i; 4851 char *pbuffer; 4852 int len = 0; 4853 4854 /* This is a user read operation */ 4855 debug->op = LPFC_IDIAG_OP_RD; 4856 4857 if (!debug->buffer) 4858 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4859 if (!debug->buffer) 4860 return 0; 4861 pbuffer = debug->buffer; 4862 4863 if (*ppos) 4864 return 0; 4865 4866 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4867 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4868 else 4869 return 0; 4870 4871 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4872 for (i = 1; i <= LPFC_CTL_MAX; i++) 4873 len = lpfc_idiag_ctlacc_read_reg(phba, 4874 pbuffer, len, i); 4875 else 4876 len = lpfc_idiag_ctlacc_read_reg(phba, 4877 pbuffer, len, ctl_reg_id); 4878 4879 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4880 } 4881 4882 /** 4883 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4884 * @file: The file pointer to read from. 4885 * @buf: The buffer to copy the user data from. 4886 * @nbytes: The number of bytes to get. 4887 * @ppos: The position in the file to start reading from. 4888 * 4889 * This routine get the debugfs idiag command struct from user space and then 4890 * perform the syntax check for port and device control register read (dump) 4891 * or write (set) command accordingly. 4892 * 4893 * It returns the @nbytges passing in from debugfs user space when successful. 4894 * In case of error conditions, it returns proper error code back to the user 4895 * space. 4896 **/ 4897 static ssize_t 4898 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4899 size_t nbytes, loff_t *ppos) 4900 { 4901 struct lpfc_debug *debug = file->private_data; 4902 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4903 uint32_t ctl_reg_id, value, reg_val = 0; 4904 void __iomem *ctl_reg; 4905 int rc; 4906 4907 /* This is a user write operation */ 4908 debug->op = LPFC_IDIAG_OP_WR; 4909 4910 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4911 if (rc < 0) 4912 return rc; 4913 4914 /* Sanity check on command line arguments */ 4915 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4916 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4917 4918 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4919 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4920 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4921 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4922 goto error_out; 4923 if (ctl_reg_id > LPFC_CTL_MAX) 4924 goto error_out; 4925 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4926 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4927 goto error_out; 4928 if ((ctl_reg_id > LPFC_CTL_MAX) && 4929 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4930 goto error_out; 4931 } else 4932 goto error_out; 4933 4934 /* Perform the write access operation */ 4935 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4936 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4937 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4938 switch (ctl_reg_id) { 4939 case LPFC_CTL_PORT_SEM: 4940 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4941 LPFC_CTL_PORT_SEM_OFFSET; 4942 break; 4943 case LPFC_CTL_PORT_STA: 4944 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4945 LPFC_CTL_PORT_STA_OFFSET; 4946 break; 4947 case LPFC_CTL_PORT_CTL: 4948 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4949 LPFC_CTL_PORT_CTL_OFFSET; 4950 break; 4951 case LPFC_CTL_PORT_ER1: 4952 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4953 LPFC_CTL_PORT_ER1_OFFSET; 4954 break; 4955 case LPFC_CTL_PORT_ER2: 4956 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4957 LPFC_CTL_PORT_ER2_OFFSET; 4958 break; 4959 case LPFC_CTL_PDEV_CTL: 4960 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4961 LPFC_CTL_PDEV_CTL_OFFSET; 4962 break; 4963 default: 4964 goto error_out; 4965 } 4966 4967 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4968 reg_val = value; 4969 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4970 reg_val = readl(ctl_reg); 4971 reg_val |= value; 4972 } 4973 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4974 reg_val = readl(ctl_reg); 4975 reg_val &= ~value; 4976 } 4977 writel(reg_val, ctl_reg); 4978 readl(ctl_reg); /* flush */ 4979 } 4980 return nbytes; 4981 4982 error_out: 4983 /* Clean out command structure on command error out */ 4984 memset(&idiag, 0, sizeof(idiag)); 4985 return -EINVAL; 4986 } 4987 4988 /** 4989 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 4990 * @phba: Pointer to HBA context object. 4991 * @pbuffer: Pointer to data buffer. 4992 * 4993 * Description: 4994 * This routine gets the driver mailbox access debugfs setup information. 4995 * 4996 * Returns: 4997 * This function returns the amount of data that was read (this could be less 4998 * than @nbytes if the end of the file was reached) or a negative error value. 4999 **/ 5000 static int 5001 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 5002 { 5003 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5004 int len = 0; 5005 5006 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5007 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5008 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5009 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5010 5011 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5012 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 5013 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5014 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 5015 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5016 "mbx_word_cnt: %04d\n", mbx_word_cnt); 5017 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5018 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 5019 5020 return len; 5021 } 5022 5023 /** 5024 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 5025 * @file: The file pointer to read from. 5026 * @buf: The buffer to copy the data to. 5027 * @nbytes: The number of bytes to read. 5028 * @ppos: The position in the file to start reading from. 5029 * 5030 * Description: 5031 * This routine reads data from the @phba driver mailbox access debugfs setup 5032 * information. 5033 * 5034 * Returns: 5035 * This function returns the amount of data that was read (this could be less 5036 * than @nbytes if the end of the file was reached) or a negative error value. 5037 **/ 5038 static ssize_t 5039 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 5040 loff_t *ppos) 5041 { 5042 struct lpfc_debug *debug = file->private_data; 5043 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5044 char *pbuffer; 5045 int len = 0; 5046 5047 /* This is a user read operation */ 5048 debug->op = LPFC_IDIAG_OP_RD; 5049 5050 if (!debug->buffer) 5051 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 5052 if (!debug->buffer) 5053 return 0; 5054 pbuffer = debug->buffer; 5055 5056 if (*ppos) 5057 return 0; 5058 5059 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 5060 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 5061 return 0; 5062 5063 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 5064 5065 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5066 } 5067 5068 /** 5069 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 5070 * @file: The file pointer to read from. 5071 * @buf: The buffer to copy the user data from. 5072 * @nbytes: The number of bytes to get. 5073 * @ppos: The position in the file to start reading from. 5074 * 5075 * This routine get the debugfs idiag command struct from user space and then 5076 * perform the syntax check for driver mailbox command (dump) and sets up the 5077 * necessary states in the idiag command struct accordingly. 5078 * 5079 * It returns the @nbytges passing in from debugfs user space when successful. 5080 * In case of error conditions, it returns proper error code back to the user 5081 * space. 5082 **/ 5083 static ssize_t 5084 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 5085 size_t nbytes, loff_t *ppos) 5086 { 5087 struct lpfc_debug *debug = file->private_data; 5088 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5089 int rc; 5090 5091 /* This is a user write operation */ 5092 debug->op = LPFC_IDIAG_OP_WR; 5093 5094 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5095 if (rc < 0) 5096 return rc; 5097 5098 /* Sanity check on command line arguments */ 5099 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5100 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5101 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5102 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5103 5104 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 5105 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 5106 goto error_out; 5107 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 5108 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5109 goto error_out; 5110 if (mbx_word_cnt > sizeof(MAILBOX_t)) 5111 goto error_out; 5112 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 5113 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 5114 goto error_out; 5115 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 5116 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5117 goto error_out; 5118 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 5119 goto error_out; 5120 if (mbx_mbox_cmd != 0x9b) 5121 goto error_out; 5122 } else 5123 goto error_out; 5124 5125 if (mbx_word_cnt == 0) 5126 goto error_out; 5127 if (rc != LPFC_MBX_DMP_ARG) 5128 goto error_out; 5129 if (mbx_mbox_cmd & ~0xff) 5130 goto error_out; 5131 5132 /* condition for stop mailbox dump */ 5133 if (mbx_dump_cnt == 0) 5134 goto reset_out; 5135 5136 return nbytes; 5137 5138 reset_out: 5139 /* Clean out command structure on command error out */ 5140 memset(&idiag, 0, sizeof(idiag)); 5141 return nbytes; 5142 5143 error_out: 5144 /* Clean out command structure on command error out */ 5145 memset(&idiag, 0, sizeof(idiag)); 5146 return -EINVAL; 5147 } 5148 5149 /** 5150 * lpfc_idiag_extacc_avail_get - get the available extents information 5151 * @phba: pointer to lpfc hba data structure. 5152 * @pbuffer: pointer to internal buffer. 5153 * @len: length into the internal buffer data has been copied. 5154 * 5155 * Description: 5156 * This routine is to get the available extent information. 5157 * 5158 * Returns: 5159 * overall length of the data read into the internal buffer. 5160 **/ 5161 static int 5162 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 5163 { 5164 uint16_t ext_cnt = 0, ext_size = 0; 5165 5166 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5167 "\nAvailable Extents Information:\n"); 5168 5169 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5170 "\tPort Available VPI extents: "); 5171 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 5172 &ext_cnt, &ext_size); 5173 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5174 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5175 5176 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5177 "\tPort Available VFI extents: "); 5178 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 5179 &ext_cnt, &ext_size); 5180 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5181 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5182 5183 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5184 "\tPort Available RPI extents: "); 5185 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 5186 &ext_cnt, &ext_size); 5187 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5188 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5189 5190 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5191 "\tPort Available XRI extents: "); 5192 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 5193 &ext_cnt, &ext_size); 5194 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5195 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5196 5197 return len; 5198 } 5199 5200 /** 5201 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 5202 * @phba: pointer to lpfc hba data structure. 5203 * @pbuffer: pointer to internal buffer. 5204 * @len: length into the internal buffer data has been copied. 5205 * 5206 * Description: 5207 * This routine is to get the allocated extent information. 5208 * 5209 * Returns: 5210 * overall length of the data read into the internal buffer. 5211 **/ 5212 static int 5213 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 5214 { 5215 uint16_t ext_cnt, ext_size; 5216 int rc; 5217 5218 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5219 "\nAllocated Extents Information:\n"); 5220 5221 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5222 "\tHost Allocated VPI extents: "); 5223 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 5224 &ext_cnt, &ext_size); 5225 if (!rc) 5226 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5227 "Port %d Extent %3d, Size %3d\n", 5228 phba->brd_no, ext_cnt, ext_size); 5229 else 5230 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5231 "N/A\n"); 5232 5233 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5234 "\tHost Allocated VFI extents: "); 5235 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 5236 &ext_cnt, &ext_size); 5237 if (!rc) 5238 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5239 "Port %d Extent %3d, Size %3d\n", 5240 phba->brd_no, ext_cnt, ext_size); 5241 else 5242 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5243 "N/A\n"); 5244 5245 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5246 "\tHost Allocated RPI extents: "); 5247 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 5248 &ext_cnt, &ext_size); 5249 if (!rc) 5250 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5251 "Port %d Extent %3d, Size %3d\n", 5252 phba->brd_no, ext_cnt, ext_size); 5253 else 5254 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5255 "N/A\n"); 5256 5257 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5258 "\tHost Allocated XRI extents: "); 5259 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 5260 &ext_cnt, &ext_size); 5261 if (!rc) 5262 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5263 "Port %d Extent %3d, Size %3d\n", 5264 phba->brd_no, ext_cnt, ext_size); 5265 else 5266 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5267 "N/A\n"); 5268 5269 return len; 5270 } 5271 5272 /** 5273 * lpfc_idiag_extacc_drivr_get - get driver extent information 5274 * @phba: pointer to lpfc hba data structure. 5275 * @pbuffer: pointer to internal buffer. 5276 * @len: length into the internal buffer data has been copied. 5277 * 5278 * Description: 5279 * This routine is to get the driver extent information. 5280 * 5281 * Returns: 5282 * overall length of the data read into the internal buffer. 5283 **/ 5284 static int 5285 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 5286 { 5287 struct lpfc_rsrc_blks *rsrc_blks; 5288 int index; 5289 5290 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5291 "\nDriver Extents Information:\n"); 5292 5293 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5294 "\tVPI extents:\n"); 5295 index = 0; 5296 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 5297 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5298 "\t\tBlock %3d: Start %4d, Count %4d\n", 5299 index, rsrc_blks->rsrc_start, 5300 rsrc_blks->rsrc_size); 5301 index++; 5302 } 5303 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5304 "\tVFI extents:\n"); 5305 index = 0; 5306 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 5307 list) { 5308 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5309 "\t\tBlock %3d: Start %4d, Count %4d\n", 5310 index, rsrc_blks->rsrc_start, 5311 rsrc_blks->rsrc_size); 5312 index++; 5313 } 5314 5315 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5316 "\tRPI extents:\n"); 5317 index = 0; 5318 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 5319 list) { 5320 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5321 "\t\tBlock %3d: Start %4d, Count %4d\n", 5322 index, rsrc_blks->rsrc_start, 5323 rsrc_blks->rsrc_size); 5324 index++; 5325 } 5326 5327 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5328 "\tXRI extents:\n"); 5329 index = 0; 5330 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 5331 list) { 5332 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5333 "\t\tBlock %3d: Start %4d, Count %4d\n", 5334 index, rsrc_blks->rsrc_start, 5335 rsrc_blks->rsrc_size); 5336 index++; 5337 } 5338 5339 return len; 5340 } 5341 5342 /** 5343 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 5344 * @file: The file pointer to read from. 5345 * @buf: The buffer to copy the user data from. 5346 * @nbytes: The number of bytes to get. 5347 * @ppos: The position in the file to start reading from. 5348 * 5349 * This routine get the debugfs idiag command struct from user space and then 5350 * perform the syntax check for extent information access commands and sets 5351 * up the necessary states in the idiag command struct accordingly. 5352 * 5353 * It returns the @nbytges passing in from debugfs user space when successful. 5354 * In case of error conditions, it returns proper error code back to the user 5355 * space. 5356 **/ 5357 static ssize_t 5358 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 5359 size_t nbytes, loff_t *ppos) 5360 { 5361 struct lpfc_debug *debug = file->private_data; 5362 uint32_t ext_map; 5363 int rc; 5364 5365 /* This is a user write operation */ 5366 debug->op = LPFC_IDIAG_OP_WR; 5367 5368 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5369 if (rc < 0) 5370 return rc; 5371 5372 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5373 5374 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5375 goto error_out; 5376 if (rc != LPFC_EXT_ACC_CMD_ARG) 5377 goto error_out; 5378 if (!(ext_map & LPFC_EXT_ACC_ALL)) 5379 goto error_out; 5380 5381 return nbytes; 5382 error_out: 5383 /* Clean out command structure on command error out */ 5384 memset(&idiag, 0, sizeof(idiag)); 5385 return -EINVAL; 5386 } 5387 5388 /** 5389 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 5390 * @file: The file pointer to read from. 5391 * @buf: The buffer to copy the data to. 5392 * @nbytes: The number of bytes to read. 5393 * @ppos: The position in the file to start reading from. 5394 * 5395 * Description: 5396 * This routine reads data from the proper extent information according to 5397 * the idiag command, and copies to user @buf. 5398 * 5399 * Returns: 5400 * This function returns the amount of data that was read (this could be less 5401 * than @nbytes if the end of the file was reached) or a negative error value. 5402 **/ 5403 static ssize_t 5404 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 5405 loff_t *ppos) 5406 { 5407 struct lpfc_debug *debug = file->private_data; 5408 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5409 char *pbuffer; 5410 uint32_t ext_map; 5411 int len = 0; 5412 5413 /* This is a user read operation */ 5414 debug->op = LPFC_IDIAG_OP_RD; 5415 5416 if (!debug->buffer) 5417 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 5418 if (!debug->buffer) 5419 return 0; 5420 pbuffer = debug->buffer; 5421 if (*ppos) 5422 return 0; 5423 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5424 return 0; 5425 5426 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5427 if (ext_map & LPFC_EXT_ACC_AVAIL) 5428 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 5429 if (ext_map & LPFC_EXT_ACC_ALLOC) 5430 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 5431 if (ext_map & LPFC_EXT_ACC_DRIVR) 5432 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 5433 5434 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5435 } 5436 5437 static int 5438 lpfc_cgn_buffer_open(struct inode *inode, struct file *file) 5439 { 5440 struct lpfc_debug *debug; 5441 int rc = -ENOMEM; 5442 5443 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 5444 if (!debug) 5445 goto out; 5446 5447 debug->buffer = vmalloc(LPFC_CGN_BUF_SIZE); 5448 if (!debug->buffer) { 5449 kfree(debug); 5450 goto out; 5451 } 5452 5453 debug->i_private = inode->i_private; 5454 file->private_data = debug; 5455 5456 rc = 0; 5457 out: 5458 return rc; 5459 } 5460 5461 static ssize_t 5462 lpfc_cgn_buffer_read(struct file *file, char __user *buf, size_t nbytes, 5463 loff_t *ppos) 5464 { 5465 struct lpfc_debug *debug = file->private_data; 5466 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5467 char *buffer = debug->buffer; 5468 uint32_t *ptr; 5469 int cnt, len = 0; 5470 5471 if (!phba->sli4_hba.pc_sli4_params.mi_ver || !phba->cgn_i) { 5472 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5473 "Congestion Mgmt is not supported\n"); 5474 goto out; 5475 } 5476 ptr = (uint32_t *)phba->cgn_i->virt; 5477 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5478 "Congestion Buffer Header\n"); 5479 /* Dump the first 32 bytes */ 5480 cnt = 32; 5481 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5482 "000: %08x %08x %08x %08x %08x %08x %08x %08x\n", 5483 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3), 5484 *(ptr + 4), *(ptr + 5), *(ptr + 6), *(ptr + 7)); 5485 ptr += 8; 5486 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5487 "Congestion Buffer Data\n"); 5488 while (cnt < sizeof(struct lpfc_cgn_info)) { 5489 if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { 5490 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5491 "Truncated . . .\n"); 5492 goto out; 5493 } 5494 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5495 "%03x: %08x %08x %08x %08x " 5496 "%08x %08x %08x %08x\n", 5497 cnt, *ptr, *(ptr + 1), *(ptr + 2), 5498 *(ptr + 3), *(ptr + 4), *(ptr + 5), 5499 *(ptr + 6), *(ptr + 7)); 5500 cnt += 32; 5501 ptr += 8; 5502 } 5503 if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { 5504 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5505 "Truncated . . .\n"); 5506 goto out; 5507 } 5508 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5509 "Parameter Data\n"); 5510 ptr = (uint32_t *)&phba->cgn_p; 5511 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5512 "%08x %08x %08x %08x\n", 5513 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3)); 5514 out: 5515 return simple_read_from_buffer(buf, nbytes, ppos, buffer, len); 5516 } 5517 5518 static int 5519 lpfc_cgn_buffer_release(struct inode *inode, struct file *file) 5520 { 5521 struct lpfc_debug *debug = file->private_data; 5522 5523 vfree(debug->buffer); 5524 kfree(debug); 5525 5526 return 0; 5527 } 5528 5529 static int 5530 lpfc_rx_monitor_open(struct inode *inode, struct file *file) 5531 { 5532 struct lpfc_rx_monitor_debug *debug; 5533 int rc = -ENOMEM; 5534 5535 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 5536 if (!debug) 5537 goto out; 5538 5539 debug->buffer = vmalloc(MAX_DEBUGFS_RX_INFO_SIZE); 5540 if (!debug->buffer) { 5541 kfree(debug); 5542 goto out; 5543 } 5544 5545 debug->i_private = inode->i_private; 5546 file->private_data = debug; 5547 5548 rc = 0; 5549 out: 5550 return rc; 5551 } 5552 5553 static ssize_t 5554 lpfc_rx_monitor_read(struct file *file, char __user *buf, size_t nbytes, 5555 loff_t *ppos) 5556 { 5557 struct lpfc_rx_monitor_debug *debug = file->private_data; 5558 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5559 char *buffer = debug->buffer; 5560 5561 if (!phba->rx_monitor) { 5562 scnprintf(buffer, MAX_DEBUGFS_RX_INFO_SIZE, 5563 "Rx Monitor Info is empty.\n"); 5564 } else { 5565 lpfc_rx_monitor_report(phba, phba->rx_monitor, buffer, 5566 MAX_DEBUGFS_RX_INFO_SIZE, 5567 LPFC_MAX_RXMONITOR_ENTRY); 5568 } 5569 5570 return simple_read_from_buffer(buf, nbytes, ppos, buffer, 5571 strlen(buffer)); 5572 } 5573 5574 static int 5575 lpfc_rx_monitor_release(struct inode *inode, struct file *file) 5576 { 5577 struct lpfc_rx_monitor_debug *debug = file->private_data; 5578 5579 vfree(debug->buffer); 5580 kfree(debug); 5581 5582 return 0; 5583 } 5584 5585 #undef lpfc_debugfs_op_disc_trc 5586 static const struct file_operations lpfc_debugfs_op_disc_trc = { 5587 .owner = THIS_MODULE, 5588 .open = lpfc_debugfs_disc_trc_open, 5589 .llseek = lpfc_debugfs_lseek, 5590 .read = lpfc_debugfs_read, 5591 .release = lpfc_debugfs_release, 5592 }; 5593 5594 #undef lpfc_debugfs_op_nodelist 5595 static const struct file_operations lpfc_debugfs_op_nodelist = { 5596 .owner = THIS_MODULE, 5597 .open = lpfc_debugfs_nodelist_open, 5598 .llseek = lpfc_debugfs_lseek, 5599 .read = lpfc_debugfs_read, 5600 .release = lpfc_debugfs_release, 5601 }; 5602 5603 #undef lpfc_debugfs_op_multixripools 5604 static const struct file_operations lpfc_debugfs_op_multixripools = { 5605 .owner = THIS_MODULE, 5606 .open = lpfc_debugfs_multixripools_open, 5607 .llseek = lpfc_debugfs_lseek, 5608 .read = lpfc_debugfs_read, 5609 .write = lpfc_debugfs_multixripools_write, 5610 .release = lpfc_debugfs_release, 5611 }; 5612 5613 #undef lpfc_debugfs_op_hbqinfo 5614 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 5615 .owner = THIS_MODULE, 5616 .open = lpfc_debugfs_hbqinfo_open, 5617 .llseek = lpfc_debugfs_lseek, 5618 .read = lpfc_debugfs_read, 5619 .release = lpfc_debugfs_release, 5620 }; 5621 5622 #ifdef LPFC_HDWQ_LOCK_STAT 5623 #undef lpfc_debugfs_op_lockstat 5624 static const struct file_operations lpfc_debugfs_op_lockstat = { 5625 .owner = THIS_MODULE, 5626 .open = lpfc_debugfs_lockstat_open, 5627 .llseek = lpfc_debugfs_lseek, 5628 .read = lpfc_debugfs_read, 5629 .write = lpfc_debugfs_lockstat_write, 5630 .release = lpfc_debugfs_release, 5631 }; 5632 #endif 5633 5634 #undef lpfc_debugfs_ras_log 5635 static const struct file_operations lpfc_debugfs_ras_log = { 5636 .owner = THIS_MODULE, 5637 .open = lpfc_debugfs_ras_log_open, 5638 .llseek = lpfc_debugfs_lseek, 5639 .read = lpfc_debugfs_read, 5640 .release = lpfc_debugfs_ras_log_release, 5641 }; 5642 5643 #undef lpfc_debugfs_op_dumpHBASlim 5644 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 5645 .owner = THIS_MODULE, 5646 .open = lpfc_debugfs_dumpHBASlim_open, 5647 .llseek = lpfc_debugfs_lseek, 5648 .read = lpfc_debugfs_read, 5649 .release = lpfc_debugfs_release, 5650 }; 5651 5652 #undef lpfc_debugfs_op_dumpHostSlim 5653 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 5654 .owner = THIS_MODULE, 5655 .open = lpfc_debugfs_dumpHostSlim_open, 5656 .llseek = lpfc_debugfs_lseek, 5657 .read = lpfc_debugfs_read, 5658 .release = lpfc_debugfs_release, 5659 }; 5660 5661 #undef lpfc_debugfs_op_nvmestat 5662 static const struct file_operations lpfc_debugfs_op_nvmestat = { 5663 .owner = THIS_MODULE, 5664 .open = lpfc_debugfs_nvmestat_open, 5665 .llseek = lpfc_debugfs_lseek, 5666 .read = lpfc_debugfs_read, 5667 .write = lpfc_debugfs_nvmestat_write, 5668 .release = lpfc_debugfs_release, 5669 }; 5670 5671 #undef lpfc_debugfs_op_scsistat 5672 static const struct file_operations lpfc_debugfs_op_scsistat = { 5673 .owner = THIS_MODULE, 5674 .open = lpfc_debugfs_scsistat_open, 5675 .llseek = lpfc_debugfs_lseek, 5676 .read = lpfc_debugfs_read, 5677 .write = lpfc_debugfs_scsistat_write, 5678 .release = lpfc_debugfs_release, 5679 }; 5680 5681 #undef lpfc_debugfs_op_ioktime 5682 static const struct file_operations lpfc_debugfs_op_ioktime = { 5683 .owner = THIS_MODULE, 5684 .open = lpfc_debugfs_ioktime_open, 5685 .llseek = lpfc_debugfs_lseek, 5686 .read = lpfc_debugfs_read, 5687 .write = lpfc_debugfs_ioktime_write, 5688 .release = lpfc_debugfs_release, 5689 }; 5690 5691 #undef lpfc_debugfs_op_nvmeio_trc 5692 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 5693 .owner = THIS_MODULE, 5694 .open = lpfc_debugfs_nvmeio_trc_open, 5695 .llseek = lpfc_debugfs_lseek, 5696 .read = lpfc_debugfs_read, 5697 .write = lpfc_debugfs_nvmeio_trc_write, 5698 .release = lpfc_debugfs_release, 5699 }; 5700 5701 #undef lpfc_debugfs_op_hdwqstat 5702 static const struct file_operations lpfc_debugfs_op_hdwqstat = { 5703 .owner = THIS_MODULE, 5704 .open = lpfc_debugfs_hdwqstat_open, 5705 .llseek = lpfc_debugfs_lseek, 5706 .read = lpfc_debugfs_read, 5707 .write = lpfc_debugfs_hdwqstat_write, 5708 .release = lpfc_debugfs_release, 5709 }; 5710 5711 #undef lpfc_debugfs_op_dif_err 5712 static const struct file_operations lpfc_debugfs_op_dif_err = { 5713 .owner = THIS_MODULE, 5714 .open = simple_open, 5715 .llseek = lpfc_debugfs_lseek, 5716 .read = lpfc_debugfs_dif_err_read, 5717 .write = lpfc_debugfs_dif_err_write, 5718 .release = lpfc_debugfs_dif_err_release, 5719 }; 5720 5721 #undef lpfc_debugfs_op_slow_ring_trc 5722 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 5723 .owner = THIS_MODULE, 5724 .open = lpfc_debugfs_slow_ring_trc_open, 5725 .llseek = lpfc_debugfs_lseek, 5726 .read = lpfc_debugfs_read, 5727 .release = lpfc_debugfs_release, 5728 }; 5729 5730 static struct dentry *lpfc_debugfs_root = NULL; 5731 static atomic_t lpfc_debugfs_hba_count; 5732 5733 /* 5734 * File operations for the iDiag debugfs 5735 */ 5736 #undef lpfc_idiag_op_pciCfg 5737 static const struct file_operations lpfc_idiag_op_pciCfg = { 5738 .owner = THIS_MODULE, 5739 .open = lpfc_idiag_open, 5740 .llseek = lpfc_debugfs_lseek, 5741 .read = lpfc_idiag_pcicfg_read, 5742 .write = lpfc_idiag_pcicfg_write, 5743 .release = lpfc_idiag_cmd_release, 5744 }; 5745 5746 #undef lpfc_idiag_op_barAcc 5747 static const struct file_operations lpfc_idiag_op_barAcc = { 5748 .owner = THIS_MODULE, 5749 .open = lpfc_idiag_open, 5750 .llseek = lpfc_debugfs_lseek, 5751 .read = lpfc_idiag_baracc_read, 5752 .write = lpfc_idiag_baracc_write, 5753 .release = lpfc_idiag_cmd_release, 5754 }; 5755 5756 #undef lpfc_idiag_op_queInfo 5757 static const struct file_operations lpfc_idiag_op_queInfo = { 5758 .owner = THIS_MODULE, 5759 .open = lpfc_idiag_open, 5760 .read = lpfc_idiag_queinfo_read, 5761 .release = lpfc_idiag_release, 5762 }; 5763 5764 #undef lpfc_idiag_op_queAcc 5765 static const struct file_operations lpfc_idiag_op_queAcc = { 5766 .owner = THIS_MODULE, 5767 .open = lpfc_idiag_open, 5768 .llseek = lpfc_debugfs_lseek, 5769 .read = lpfc_idiag_queacc_read, 5770 .write = lpfc_idiag_queacc_write, 5771 .release = lpfc_idiag_cmd_release, 5772 }; 5773 5774 #undef lpfc_idiag_op_drbAcc 5775 static const struct file_operations lpfc_idiag_op_drbAcc = { 5776 .owner = THIS_MODULE, 5777 .open = lpfc_idiag_open, 5778 .llseek = lpfc_debugfs_lseek, 5779 .read = lpfc_idiag_drbacc_read, 5780 .write = lpfc_idiag_drbacc_write, 5781 .release = lpfc_idiag_cmd_release, 5782 }; 5783 5784 #undef lpfc_idiag_op_ctlAcc 5785 static const struct file_operations lpfc_idiag_op_ctlAcc = { 5786 .owner = THIS_MODULE, 5787 .open = lpfc_idiag_open, 5788 .llseek = lpfc_debugfs_lseek, 5789 .read = lpfc_idiag_ctlacc_read, 5790 .write = lpfc_idiag_ctlacc_write, 5791 .release = lpfc_idiag_cmd_release, 5792 }; 5793 5794 #undef lpfc_idiag_op_mbxAcc 5795 static const struct file_operations lpfc_idiag_op_mbxAcc = { 5796 .owner = THIS_MODULE, 5797 .open = lpfc_idiag_open, 5798 .llseek = lpfc_debugfs_lseek, 5799 .read = lpfc_idiag_mbxacc_read, 5800 .write = lpfc_idiag_mbxacc_write, 5801 .release = lpfc_idiag_cmd_release, 5802 }; 5803 5804 #undef lpfc_idiag_op_extAcc 5805 static const struct file_operations lpfc_idiag_op_extAcc = { 5806 .owner = THIS_MODULE, 5807 .open = lpfc_idiag_open, 5808 .llseek = lpfc_debugfs_lseek, 5809 .read = lpfc_idiag_extacc_read, 5810 .write = lpfc_idiag_extacc_write, 5811 .release = lpfc_idiag_cmd_release, 5812 }; 5813 #undef lpfc_cgn_buffer_op 5814 static const struct file_operations lpfc_cgn_buffer_op = { 5815 .owner = THIS_MODULE, 5816 .open = lpfc_cgn_buffer_open, 5817 .llseek = lpfc_debugfs_lseek, 5818 .read = lpfc_cgn_buffer_read, 5819 .release = lpfc_cgn_buffer_release, 5820 }; 5821 5822 #undef lpfc_rx_monitor_op 5823 static const struct file_operations lpfc_rx_monitor_op = { 5824 .owner = THIS_MODULE, 5825 .open = lpfc_rx_monitor_open, 5826 .llseek = lpfc_debugfs_lseek, 5827 .read = lpfc_rx_monitor_read, 5828 .release = lpfc_rx_monitor_release, 5829 }; 5830 #endif 5831 5832 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 5833 * @phba: Pointer to HBA context object. 5834 * @dmabuf: Pointer to a DMA buffer descriptor. 5835 * 5836 * Description: 5837 * This routine dump a bsg pass-through non-embedded mailbox command with 5838 * external buffer. 5839 **/ 5840 void 5841 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 5842 enum mbox_type mbox_tp, enum dma_type dma_tp, 5843 enum sta_type sta_tp, 5844 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 5845 { 5846 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5847 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 5848 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5849 int len = 0; 5850 uint32_t do_dump = 0; 5851 uint32_t *pword; 5852 uint32_t i; 5853 5854 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 5855 return; 5856 5857 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5858 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5859 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5860 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5861 5862 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 5863 (*mbx_dump_cnt == 0) || 5864 (*mbx_word_cnt == 0)) 5865 return; 5866 5867 if (*mbx_mbox_cmd != 0x9B) 5868 return; 5869 5870 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 5871 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 5872 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 5873 pr_err("\nRead mbox command (x%x), " 5874 "nemb:0x%x, extbuf_cnt:%d:\n", 5875 sta_tp, nemb_tp, ext_buf); 5876 } 5877 } 5878 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5879 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5880 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5881 pr_err("\nRead mbox buffer (x%x), " 5882 "nemb:0x%x, extbuf_seq:%d:\n", 5883 sta_tp, nemb_tp, ext_buf); 5884 } 5885 } 5886 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5887 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5888 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5889 pr_err("\nWrite mbox command (x%x), " 5890 "nemb:0x%x, extbuf_cnt:%d:\n", 5891 sta_tp, nemb_tp, ext_buf); 5892 } 5893 } 5894 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5895 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5896 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5897 pr_err("\nWrite mbox buffer (x%x), " 5898 "nemb:0x%x, extbuf_seq:%d:\n", 5899 sta_tp, nemb_tp, ext_buf); 5900 } 5901 } 5902 5903 /* dump buffer content */ 5904 if (do_dump) { 5905 pword = (uint32_t *)dmabuf->virt; 5906 for (i = 0; i < *mbx_word_cnt; i++) { 5907 if (!(i % 8)) { 5908 if (i != 0) 5909 pr_err("%s\n", line_buf); 5910 len = 0; 5911 len += scnprintf(line_buf+len, 5912 LPFC_MBX_ACC_LBUF_SZ-len, 5913 "%03d: ", i); 5914 } 5915 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5916 "%08x ", (uint32_t)*pword); 5917 pword++; 5918 } 5919 if ((i - 1) % 8) 5920 pr_err("%s\n", line_buf); 5921 (*mbx_dump_cnt)--; 5922 } 5923 5924 /* Clean out command structure on reaching dump count */ 5925 if (*mbx_dump_cnt == 0) 5926 memset(&idiag, 0, sizeof(idiag)); 5927 return; 5928 #endif 5929 } 5930 5931 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5932 * @phba: Pointer to HBA context object. 5933 * @dmabuf: Pointer to a DMA buffer descriptor. 5934 * 5935 * Description: 5936 * This routine dump a pass-through non-embedded mailbox command from issue 5937 * mailbox command. 5938 **/ 5939 void 5940 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5941 { 5942 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5943 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5944 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5945 int len = 0; 5946 uint32_t *pword; 5947 uint8_t *pbyte; 5948 uint32_t i, j; 5949 5950 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5951 return; 5952 5953 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5954 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5955 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5956 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5957 5958 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5959 (*mbx_dump_cnt == 0) || 5960 (*mbx_word_cnt == 0)) 5961 return; 5962 5963 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5964 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5965 return; 5966 5967 /* dump buffer content */ 5968 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 5969 pr_err("Mailbox command:0x%x dump by word:\n", 5970 pmbox->mbxCommand); 5971 pword = (uint32_t *)pmbox; 5972 for (i = 0; i < *mbx_word_cnt; i++) { 5973 if (!(i % 8)) { 5974 if (i != 0) 5975 pr_err("%s\n", line_buf); 5976 len = 0; 5977 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5978 len += scnprintf(line_buf+len, 5979 LPFC_MBX_ACC_LBUF_SZ-len, 5980 "%03d: ", i); 5981 } 5982 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5983 "%08x ", 5984 ((uint32_t)*pword) & 0xffffffff); 5985 pword++; 5986 } 5987 if ((i - 1) % 8) 5988 pr_err("%s\n", line_buf); 5989 pr_err("\n"); 5990 } 5991 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 5992 pr_err("Mailbox command:0x%x dump by byte:\n", 5993 pmbox->mbxCommand); 5994 pbyte = (uint8_t *)pmbox; 5995 for (i = 0; i < *mbx_word_cnt; i++) { 5996 if (!(i % 8)) { 5997 if (i != 0) 5998 pr_err("%s\n", line_buf); 5999 len = 0; 6000 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 6001 len += scnprintf(line_buf+len, 6002 LPFC_MBX_ACC_LBUF_SZ-len, 6003 "%03d: ", i); 6004 } 6005 for (j = 0; j < 4; j++) { 6006 len += scnprintf(line_buf+len, 6007 LPFC_MBX_ACC_LBUF_SZ-len, 6008 "%02x", 6009 ((uint8_t)*pbyte) & 0xff); 6010 pbyte++; 6011 } 6012 len += scnprintf(line_buf+len, 6013 LPFC_MBX_ACC_LBUF_SZ-len, " "); 6014 } 6015 if ((i - 1) % 8) 6016 pr_err("%s\n", line_buf); 6017 pr_err("\n"); 6018 } 6019 (*mbx_dump_cnt)--; 6020 6021 /* Clean out command structure on reaching dump count */ 6022 if (*mbx_dump_cnt == 0) 6023 memset(&idiag, 0, sizeof(idiag)); 6024 return; 6025 #endif 6026 } 6027 6028 /** 6029 * lpfc_debugfs_initialize - Initialize debugfs for a vport 6030 * @vport: The vport pointer to initialize. 6031 * 6032 * Description: 6033 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 6034 * If not already created, this routine will create the lpfc directory, and 6035 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 6036 * also create each file used to access lpfc specific debugfs information. 6037 **/ 6038 inline void 6039 lpfc_debugfs_initialize(struct lpfc_vport *vport) 6040 { 6041 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6042 struct lpfc_hba *phba = vport->phba; 6043 char name[64]; 6044 uint32_t num, i; 6045 bool pport_setup = false; 6046 6047 if (!lpfc_debugfs_enable) 6048 return; 6049 6050 /* Setup lpfc root directory */ 6051 if (!lpfc_debugfs_root) { 6052 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 6053 atomic_set(&lpfc_debugfs_hba_count, 0); 6054 } 6055 if (!lpfc_debugfs_start_time) 6056 lpfc_debugfs_start_time = jiffies; 6057 6058 /* Setup funcX directory for specific HBA PCI function */ 6059 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 6060 if (!phba->hba_debugfs_root) { 6061 pport_setup = true; 6062 phba->hba_debugfs_root = 6063 debugfs_create_dir(name, lpfc_debugfs_root); 6064 atomic_inc(&lpfc_debugfs_hba_count); 6065 atomic_set(&phba->debugfs_vport_count, 0); 6066 6067 /* Multi-XRI pools */ 6068 snprintf(name, sizeof(name), "multixripools"); 6069 phba->debug_multixri_pools = 6070 debugfs_create_file(name, S_IFREG | 0644, 6071 phba->hba_debugfs_root, 6072 phba, 6073 &lpfc_debugfs_op_multixripools); 6074 if (IS_ERR(phba->debug_multixri_pools)) { 6075 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6076 "0527 Cannot create debugfs multixripools\n"); 6077 goto debug_failed; 6078 } 6079 6080 /* Congestion Info Buffer */ 6081 scnprintf(name, sizeof(name), "cgn_buffer"); 6082 phba->debug_cgn_buffer = 6083 debugfs_create_file(name, S_IFREG | 0644, 6084 phba->hba_debugfs_root, 6085 phba, &lpfc_cgn_buffer_op); 6086 if (IS_ERR(phba->debug_cgn_buffer)) { 6087 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6088 "6527 Cannot create debugfs " 6089 "cgn_buffer\n"); 6090 goto debug_failed; 6091 } 6092 6093 /* RX Monitor */ 6094 scnprintf(name, sizeof(name), "rx_monitor"); 6095 phba->debug_rx_monitor = 6096 debugfs_create_file(name, S_IFREG | 0644, 6097 phba->hba_debugfs_root, 6098 phba, &lpfc_rx_monitor_op); 6099 if (IS_ERR(phba->debug_rx_monitor)) { 6100 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6101 "6528 Cannot create debugfs " 6102 "rx_monitor\n"); 6103 goto debug_failed; 6104 } 6105 6106 /* RAS log */ 6107 snprintf(name, sizeof(name), "ras_log"); 6108 phba->debug_ras_log = 6109 debugfs_create_file(name, 0644, 6110 phba->hba_debugfs_root, 6111 phba, &lpfc_debugfs_ras_log); 6112 if (IS_ERR(phba->debug_ras_log)) { 6113 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6114 "6148 Cannot create debugfs" 6115 " ras_log\n"); 6116 goto debug_failed; 6117 } 6118 6119 /* Setup hbqinfo */ 6120 snprintf(name, sizeof(name), "hbqinfo"); 6121 phba->debug_hbqinfo = 6122 debugfs_create_file(name, S_IFREG | 0644, 6123 phba->hba_debugfs_root, 6124 phba, &lpfc_debugfs_op_hbqinfo); 6125 6126 #ifdef LPFC_HDWQ_LOCK_STAT 6127 /* Setup lockstat */ 6128 snprintf(name, sizeof(name), "lockstat"); 6129 phba->debug_lockstat = 6130 debugfs_create_file(name, S_IFREG | 0644, 6131 phba->hba_debugfs_root, 6132 phba, &lpfc_debugfs_op_lockstat); 6133 if (IS_ERR(phba->debug_lockstat)) { 6134 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6135 "4610 Can't create debugfs lockstat\n"); 6136 goto debug_failed; 6137 } 6138 #endif 6139 6140 /* Setup dumpHBASlim */ 6141 if (phba->sli_rev < LPFC_SLI_REV4) { 6142 snprintf(name, sizeof(name), "dumpHBASlim"); 6143 phba->debug_dumpHBASlim = 6144 debugfs_create_file(name, 6145 S_IFREG|S_IRUGO|S_IWUSR, 6146 phba->hba_debugfs_root, 6147 phba, &lpfc_debugfs_op_dumpHBASlim); 6148 } else 6149 phba->debug_dumpHBASlim = NULL; 6150 6151 /* Setup dumpHostSlim */ 6152 if (phba->sli_rev < LPFC_SLI_REV4) { 6153 snprintf(name, sizeof(name), "dumpHostSlim"); 6154 phba->debug_dumpHostSlim = 6155 debugfs_create_file(name, 6156 S_IFREG|S_IRUGO|S_IWUSR, 6157 phba->hba_debugfs_root, 6158 phba, &lpfc_debugfs_op_dumpHostSlim); 6159 } else 6160 phba->debug_dumpHostSlim = NULL; 6161 6162 /* Setup DIF Error Injections */ 6163 snprintf(name, sizeof(name), "InjErrLBA"); 6164 phba->debug_InjErrLBA = 6165 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6166 phba->hba_debugfs_root, 6167 phba, &lpfc_debugfs_op_dif_err); 6168 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 6169 6170 snprintf(name, sizeof(name), "InjErrNPortID"); 6171 phba->debug_InjErrNPortID = 6172 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6173 phba->hba_debugfs_root, 6174 phba, &lpfc_debugfs_op_dif_err); 6175 6176 snprintf(name, sizeof(name), "InjErrWWPN"); 6177 phba->debug_InjErrWWPN = 6178 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6179 phba->hba_debugfs_root, 6180 phba, &lpfc_debugfs_op_dif_err); 6181 6182 snprintf(name, sizeof(name), "writeGuardInjErr"); 6183 phba->debug_writeGuard = 6184 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6185 phba->hba_debugfs_root, 6186 phba, &lpfc_debugfs_op_dif_err); 6187 6188 snprintf(name, sizeof(name), "writeAppInjErr"); 6189 phba->debug_writeApp = 6190 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6191 phba->hba_debugfs_root, 6192 phba, &lpfc_debugfs_op_dif_err); 6193 6194 snprintf(name, sizeof(name), "writeRefInjErr"); 6195 phba->debug_writeRef = 6196 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6197 phba->hba_debugfs_root, 6198 phba, &lpfc_debugfs_op_dif_err); 6199 6200 snprintf(name, sizeof(name), "readGuardInjErr"); 6201 phba->debug_readGuard = 6202 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6203 phba->hba_debugfs_root, 6204 phba, &lpfc_debugfs_op_dif_err); 6205 6206 snprintf(name, sizeof(name), "readAppInjErr"); 6207 phba->debug_readApp = 6208 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6209 phba->hba_debugfs_root, 6210 phba, &lpfc_debugfs_op_dif_err); 6211 6212 snprintf(name, sizeof(name), "readRefInjErr"); 6213 phba->debug_readRef = 6214 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6215 phba->hba_debugfs_root, 6216 phba, &lpfc_debugfs_op_dif_err); 6217 6218 /* Setup slow ring trace */ 6219 if (lpfc_debugfs_max_slow_ring_trc) { 6220 num = lpfc_debugfs_max_slow_ring_trc - 1; 6221 if (num & lpfc_debugfs_max_slow_ring_trc) { 6222 /* Change to be a power of 2 */ 6223 num = lpfc_debugfs_max_slow_ring_trc; 6224 i = 0; 6225 while (num > 1) { 6226 num = num >> 1; 6227 i++; 6228 } 6229 lpfc_debugfs_max_slow_ring_trc = (1 << i); 6230 pr_err("lpfc_debugfs_max_disc_trc changed to " 6231 "%d\n", lpfc_debugfs_max_disc_trc); 6232 } 6233 } 6234 6235 snprintf(name, sizeof(name), "slow_ring_trace"); 6236 phba->debug_slow_ring_trc = 6237 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6238 phba->hba_debugfs_root, 6239 phba, &lpfc_debugfs_op_slow_ring_trc); 6240 if (!phba->slow_ring_trc) { 6241 phba->slow_ring_trc = kcalloc( 6242 lpfc_debugfs_max_slow_ring_trc, 6243 sizeof(struct lpfc_debugfs_trc), 6244 GFP_KERNEL); 6245 if (!phba->slow_ring_trc) { 6246 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6247 "0416 Cannot create debugfs " 6248 "slow_ring buffer\n"); 6249 goto debug_failed; 6250 } 6251 atomic_set(&phba->slow_ring_trc_cnt, 0); 6252 } 6253 6254 snprintf(name, sizeof(name), "nvmeio_trc"); 6255 phba->debug_nvmeio_trc = 6256 debugfs_create_file(name, 0644, 6257 phba->hba_debugfs_root, 6258 phba, &lpfc_debugfs_op_nvmeio_trc); 6259 6260 atomic_set(&phba->nvmeio_trc_cnt, 0); 6261 if (lpfc_debugfs_max_nvmeio_trc) { 6262 num = lpfc_debugfs_max_nvmeio_trc - 1; 6263 if (num & lpfc_debugfs_max_disc_trc) { 6264 /* Change to be a power of 2 */ 6265 num = lpfc_debugfs_max_nvmeio_trc; 6266 i = 0; 6267 while (num > 1) { 6268 num = num >> 1; 6269 i++; 6270 } 6271 lpfc_debugfs_max_nvmeio_trc = (1 << i); 6272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6273 "0575 lpfc_debugfs_max_nvmeio_trc " 6274 "changed to %d\n", 6275 lpfc_debugfs_max_nvmeio_trc); 6276 } 6277 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 6278 6279 /* Allocate trace buffer and initialize */ 6280 phba->nvmeio_trc = kzalloc( 6281 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 6282 phba->nvmeio_trc_size), GFP_KERNEL); 6283 6284 if (!phba->nvmeio_trc) { 6285 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6286 "0576 Cannot create debugfs " 6287 "nvmeio_trc buffer\n"); 6288 goto nvmeio_off; 6289 } 6290 phba->nvmeio_trc_on = 1; 6291 phba->nvmeio_trc_output_idx = 0; 6292 phba->nvmeio_trc = NULL; 6293 } else { 6294 nvmeio_off: 6295 phba->nvmeio_trc_size = 0; 6296 phba->nvmeio_trc_on = 0; 6297 phba->nvmeio_trc_output_idx = 0; 6298 phba->nvmeio_trc = NULL; 6299 } 6300 } 6301 6302 snprintf(name, sizeof(name), "vport%d", vport->vpi); 6303 if (!vport->vport_debugfs_root) { 6304 vport->vport_debugfs_root = 6305 debugfs_create_dir(name, phba->hba_debugfs_root); 6306 atomic_inc(&phba->debugfs_vport_count); 6307 } 6308 6309 if (lpfc_debugfs_max_disc_trc) { 6310 num = lpfc_debugfs_max_disc_trc - 1; 6311 if (num & lpfc_debugfs_max_disc_trc) { 6312 /* Change to be a power of 2 */ 6313 num = lpfc_debugfs_max_disc_trc; 6314 i = 0; 6315 while (num > 1) { 6316 num = num >> 1; 6317 i++; 6318 } 6319 lpfc_debugfs_max_disc_trc = (1 << i); 6320 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n", 6321 lpfc_debugfs_max_disc_trc); 6322 } 6323 } 6324 6325 vport->disc_trc = kzalloc( 6326 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 6327 GFP_KERNEL); 6328 6329 if (!vport->disc_trc) { 6330 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6331 "0418 Cannot create debugfs disc trace " 6332 "buffer\n"); 6333 goto debug_failed; 6334 } 6335 atomic_set(&vport->disc_trc_cnt, 0); 6336 6337 snprintf(name, sizeof(name), "discovery_trace"); 6338 vport->debug_disc_trc = 6339 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6340 vport->vport_debugfs_root, 6341 vport, &lpfc_debugfs_op_disc_trc); 6342 snprintf(name, sizeof(name), "nodelist"); 6343 vport->debug_nodelist = 6344 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6345 vport->vport_debugfs_root, 6346 vport, &lpfc_debugfs_op_nodelist); 6347 6348 snprintf(name, sizeof(name), "nvmestat"); 6349 vport->debug_nvmestat = 6350 debugfs_create_file(name, 0644, 6351 vport->vport_debugfs_root, 6352 vport, &lpfc_debugfs_op_nvmestat); 6353 6354 snprintf(name, sizeof(name), "scsistat"); 6355 vport->debug_scsistat = 6356 debugfs_create_file(name, 0644, 6357 vport->vport_debugfs_root, 6358 vport, &lpfc_debugfs_op_scsistat); 6359 if (IS_ERR(vport->debug_scsistat)) { 6360 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6361 "4611 Cannot create debugfs scsistat\n"); 6362 goto debug_failed; 6363 } 6364 6365 snprintf(name, sizeof(name), "ioktime"); 6366 vport->debug_ioktime = 6367 debugfs_create_file(name, 0644, 6368 vport->vport_debugfs_root, 6369 vport, &lpfc_debugfs_op_ioktime); 6370 if (IS_ERR(vport->debug_ioktime)) { 6371 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6372 "0815 Cannot create debugfs ioktime\n"); 6373 goto debug_failed; 6374 } 6375 6376 snprintf(name, sizeof(name), "hdwqstat"); 6377 vport->debug_hdwqstat = 6378 debugfs_create_file(name, 0644, 6379 vport->vport_debugfs_root, 6380 vport, &lpfc_debugfs_op_hdwqstat); 6381 6382 /* 6383 * The following section is for additional directories/files for the 6384 * physical port. 6385 */ 6386 6387 if (!pport_setup) 6388 goto debug_failed; 6389 6390 /* 6391 * iDiag debugfs root entry points for SLI4 device only 6392 */ 6393 if (phba->sli_rev < LPFC_SLI_REV4) 6394 goto debug_failed; 6395 6396 snprintf(name, sizeof(name), "iDiag"); 6397 if (!phba->idiag_root) { 6398 phba->idiag_root = 6399 debugfs_create_dir(name, phba->hba_debugfs_root); 6400 /* Initialize iDiag data structure */ 6401 memset(&idiag, 0, sizeof(idiag)); 6402 } 6403 6404 /* iDiag read PCI config space */ 6405 snprintf(name, sizeof(name), "pciCfg"); 6406 if (!phba->idiag_pci_cfg) { 6407 phba->idiag_pci_cfg = 6408 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6409 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 6410 idiag.offset.last_rd = 0; 6411 } 6412 6413 /* iDiag PCI BAR access */ 6414 snprintf(name, sizeof(name), "barAcc"); 6415 if (!phba->idiag_bar_acc) { 6416 phba->idiag_bar_acc = 6417 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6418 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 6419 idiag.offset.last_rd = 0; 6420 } 6421 6422 /* iDiag get PCI function queue information */ 6423 snprintf(name, sizeof(name), "queInfo"); 6424 if (!phba->idiag_que_info) { 6425 phba->idiag_que_info = 6426 debugfs_create_file(name, S_IFREG|S_IRUGO, 6427 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 6428 } 6429 6430 /* iDiag access PCI function queue */ 6431 snprintf(name, sizeof(name), "queAcc"); 6432 if (!phba->idiag_que_acc) { 6433 phba->idiag_que_acc = 6434 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6435 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 6436 } 6437 6438 /* iDiag access PCI function doorbell registers */ 6439 snprintf(name, sizeof(name), "drbAcc"); 6440 if (!phba->idiag_drb_acc) { 6441 phba->idiag_drb_acc = 6442 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6443 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 6444 } 6445 6446 /* iDiag access PCI function control registers */ 6447 snprintf(name, sizeof(name), "ctlAcc"); 6448 if (!phba->idiag_ctl_acc) { 6449 phba->idiag_ctl_acc = 6450 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6451 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 6452 } 6453 6454 /* iDiag access mbox commands */ 6455 snprintf(name, sizeof(name), "mbxAcc"); 6456 if (!phba->idiag_mbx_acc) { 6457 phba->idiag_mbx_acc = 6458 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6459 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 6460 } 6461 6462 /* iDiag extents access commands */ 6463 if (phba->sli4_hba.extents_in_use) { 6464 snprintf(name, sizeof(name), "extAcc"); 6465 if (!phba->idiag_ext_acc) { 6466 phba->idiag_ext_acc = 6467 debugfs_create_file(name, 6468 S_IFREG|S_IRUGO|S_IWUSR, 6469 phba->idiag_root, phba, 6470 &lpfc_idiag_op_extAcc); 6471 } 6472 } 6473 6474 debug_failed: 6475 return; 6476 #endif 6477 } 6478 6479 /** 6480 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 6481 * @vport: The vport pointer to remove from debugfs. 6482 * 6483 * Description: 6484 * When Debugfs is configured this routine removes debugfs file system elements 6485 * that are specific to this vport. It also checks to see if there are any 6486 * users left for the debugfs directories associated with the HBA and driver. If 6487 * this is the last user of the HBA directory or driver directory then it will 6488 * remove those from the debugfs infrastructure as well. 6489 **/ 6490 inline void 6491 lpfc_debugfs_terminate(struct lpfc_vport *vport) 6492 { 6493 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6494 struct lpfc_hba *phba = vport->phba; 6495 6496 kfree(vport->disc_trc); 6497 vport->disc_trc = NULL; 6498 6499 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 6500 vport->debug_disc_trc = NULL; 6501 6502 debugfs_remove(vport->debug_nodelist); /* nodelist */ 6503 vport->debug_nodelist = NULL; 6504 6505 debugfs_remove(vport->debug_nvmestat); /* nvmestat */ 6506 vport->debug_nvmestat = NULL; 6507 6508 debugfs_remove(vport->debug_scsistat); /* scsistat */ 6509 vport->debug_scsistat = NULL; 6510 6511 debugfs_remove(vport->debug_ioktime); /* ioktime */ 6512 vport->debug_ioktime = NULL; 6513 6514 debugfs_remove(vport->debug_hdwqstat); /* hdwqstat */ 6515 vport->debug_hdwqstat = NULL; 6516 6517 if (vport->vport_debugfs_root) { 6518 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 6519 vport->vport_debugfs_root = NULL; 6520 atomic_dec(&phba->debugfs_vport_count); 6521 } 6522 6523 if (atomic_read(&phba->debugfs_vport_count) == 0) { 6524 6525 debugfs_remove(phba->debug_multixri_pools); /* multixripools*/ 6526 phba->debug_multixri_pools = NULL; 6527 6528 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 6529 phba->debug_hbqinfo = NULL; 6530 6531 debugfs_remove(phba->debug_cgn_buffer); 6532 phba->debug_cgn_buffer = NULL; 6533 6534 debugfs_remove(phba->debug_rx_monitor); 6535 phba->debug_rx_monitor = NULL; 6536 6537 debugfs_remove(phba->debug_ras_log); 6538 phba->debug_ras_log = NULL; 6539 6540 #ifdef LPFC_HDWQ_LOCK_STAT 6541 debugfs_remove(phba->debug_lockstat); /* lockstat */ 6542 phba->debug_lockstat = NULL; 6543 #endif 6544 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 6545 phba->debug_dumpHBASlim = NULL; 6546 6547 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 6548 phba->debug_dumpHostSlim = NULL; 6549 6550 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 6551 phba->debug_InjErrLBA = NULL; 6552 6553 debugfs_remove(phba->debug_InjErrNPortID); 6554 phba->debug_InjErrNPortID = NULL; 6555 6556 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 6557 phba->debug_InjErrWWPN = NULL; 6558 6559 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 6560 phba->debug_writeGuard = NULL; 6561 6562 debugfs_remove(phba->debug_writeApp); /* writeApp */ 6563 phba->debug_writeApp = NULL; 6564 6565 debugfs_remove(phba->debug_writeRef); /* writeRef */ 6566 phba->debug_writeRef = NULL; 6567 6568 debugfs_remove(phba->debug_readGuard); /* readGuard */ 6569 phba->debug_readGuard = NULL; 6570 6571 debugfs_remove(phba->debug_readApp); /* readApp */ 6572 phba->debug_readApp = NULL; 6573 6574 debugfs_remove(phba->debug_readRef); /* readRef */ 6575 phba->debug_readRef = NULL; 6576 6577 kfree(phba->slow_ring_trc); 6578 phba->slow_ring_trc = NULL; 6579 6580 /* slow_ring_trace */ 6581 debugfs_remove(phba->debug_slow_ring_trc); 6582 phba->debug_slow_ring_trc = NULL; 6583 6584 debugfs_remove(phba->debug_nvmeio_trc); 6585 phba->debug_nvmeio_trc = NULL; 6586 6587 kfree(phba->nvmeio_trc); 6588 phba->nvmeio_trc = NULL; 6589 6590 /* 6591 * iDiag release 6592 */ 6593 if (phba->sli_rev == LPFC_SLI_REV4) { 6594 /* iDiag extAcc */ 6595 debugfs_remove(phba->idiag_ext_acc); 6596 phba->idiag_ext_acc = NULL; 6597 6598 /* iDiag mbxAcc */ 6599 debugfs_remove(phba->idiag_mbx_acc); 6600 phba->idiag_mbx_acc = NULL; 6601 6602 /* iDiag ctlAcc */ 6603 debugfs_remove(phba->idiag_ctl_acc); 6604 phba->idiag_ctl_acc = NULL; 6605 6606 /* iDiag drbAcc */ 6607 debugfs_remove(phba->idiag_drb_acc); 6608 phba->idiag_drb_acc = NULL; 6609 6610 /* iDiag queAcc */ 6611 debugfs_remove(phba->idiag_que_acc); 6612 phba->idiag_que_acc = NULL; 6613 6614 /* iDiag queInfo */ 6615 debugfs_remove(phba->idiag_que_info); 6616 phba->idiag_que_info = NULL; 6617 6618 /* iDiag barAcc */ 6619 debugfs_remove(phba->idiag_bar_acc); 6620 phba->idiag_bar_acc = NULL; 6621 6622 /* iDiag pciCfg */ 6623 debugfs_remove(phba->idiag_pci_cfg); 6624 phba->idiag_pci_cfg = NULL; 6625 6626 /* Finally remove the iDiag debugfs root */ 6627 debugfs_remove(phba->idiag_root); 6628 phba->idiag_root = NULL; 6629 } 6630 6631 if (phba->hba_debugfs_root) { 6632 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 6633 phba->hba_debugfs_root = NULL; 6634 atomic_dec(&lpfc_debugfs_hba_count); 6635 } 6636 6637 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 6638 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 6639 lpfc_debugfs_root = NULL; 6640 } 6641 } 6642 #endif 6643 return; 6644 } 6645 6646 /* 6647 * Driver debug utility routines outside of debugfs. The debug utility 6648 * routines implemented here is intended to be used in the instrumented 6649 * debug driver for debugging host or port issues. 6650 */ 6651 6652 /** 6653 * lpfc_debug_dump_all_queues - dump all the queues with a hba 6654 * @phba: Pointer to HBA context object. 6655 * 6656 * This function dumps entries of all the queues asociated with the @phba. 6657 **/ 6658 void 6659 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 6660 { 6661 int idx; 6662 6663 /* 6664 * Dump Work Queues (WQs) 6665 */ 6666 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 6667 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 6668 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 6669 6670 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6671 lpfc_debug_dump_wq(phba, DUMP_IO, idx); 6672 6673 lpfc_debug_dump_hdr_rq(phba); 6674 lpfc_debug_dump_dat_rq(phba); 6675 /* 6676 * Dump Complete Queues (CQs) 6677 */ 6678 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 6679 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 6680 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 6681 6682 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6683 lpfc_debug_dump_cq(phba, DUMP_IO, idx); 6684 6685 /* 6686 * Dump Event Queues (EQs) 6687 */ 6688 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6689 lpfc_debug_dump_hba_eq(phba, idx); 6690 } 6691