1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2007-2015 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * * 10 * This program is free software; you can redistribute it and/or * 11 * modify it under the terms of version 2 of the GNU General * 12 * Public License as published by the Free Software Foundation. * 13 * This program is distributed in the hope that it will be useful. * 14 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 15 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 16 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 17 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 18 * TO BE LEGALLY INVALID. See the GNU General Public License for * 19 * more details, a copy of which can be found in the file COPYING * 20 * included with this package. * 21 *******************************************************************/ 22 23 #include <linux/blkdev.h> 24 #include <linux/delay.h> 25 #include <linux/module.h> 26 #include <linux/dma-mapping.h> 27 #include <linux/idr.h> 28 #include <linux/interrupt.h> 29 #include <linux/kthread.h> 30 #include <linux/slab.h> 31 #include <linux/pci.h> 32 #include <linux/spinlock.h> 33 #include <linux/ctype.h> 34 #include <linux/vmalloc.h> 35 36 #include <scsi/scsi.h> 37 #include <scsi/scsi_device.h> 38 #include <scsi/scsi_host.h> 39 #include <scsi/scsi_transport_fc.h> 40 #include <scsi/fc/fc_fs.h> 41 42 #include "lpfc_hw4.h" 43 #include "lpfc_hw.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc_nl.h" 47 #include "lpfc_disc.h" 48 #include "lpfc.h" 49 #include "lpfc_scsi.h" 50 #include "lpfc_nvme.h" 51 #include "lpfc_logmsg.h" 52 #include "lpfc_crtn.h" 53 #include "lpfc_vport.h" 54 #include "lpfc_version.h" 55 #include "lpfc_compat.h" 56 #include "lpfc_debugfs.h" 57 #include "lpfc_bsg.h" 58 59 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 60 /* 61 * debugfs interface 62 * 63 * To access this interface the user should: 64 * # mount -t debugfs none /sys/kernel/debug 65 * 66 * The lpfc debugfs directory hierarchy is: 67 * /sys/kernel/debug/lpfc/fnX/vportY 68 * where X is the lpfc hba function unique_id 69 * where Y is the vport VPI on that hba 70 * 71 * Debugging services available per vport: 72 * discovery_trace 73 * This is an ACSII readable file that contains a trace of the last 74 * lpfc_debugfs_max_disc_trc events that happened on a specific vport. 75 * See lpfc_debugfs.h for different categories of discovery events. 76 * To enable the discovery trace, the following module parameters must be set: 77 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 78 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for 79 * EACH vport. X MUST also be a power of 2. 80 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in 81 * lpfc_debugfs.h . 82 * 83 * slow_ring_trace 84 * This is an ACSII readable file that contains a trace of the last 85 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. 86 * To enable the slow ring trace, the following module parameters must be set: 87 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 88 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for 89 * the HBA. X MUST also be a power of 2. 90 */ 91 static int lpfc_debugfs_enable = 1; 92 module_param(lpfc_debugfs_enable, int, S_IRUGO); 93 MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); 94 95 /* This MUST be a power of 2 */ 96 static int lpfc_debugfs_max_disc_trc; 97 module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); 98 MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, 99 "Set debugfs discovery trace depth"); 100 101 /* This MUST be a power of 2 */ 102 static int lpfc_debugfs_max_slow_ring_trc; 103 module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); 104 MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, 105 "Set debugfs slow ring trace depth"); 106 107 /* This MUST be a power of 2 */ 108 static int lpfc_debugfs_max_nvmeio_trc; 109 module_param(lpfc_debugfs_max_nvmeio_trc, int, 0444); 110 MODULE_PARM_DESC(lpfc_debugfs_max_nvmeio_trc, 111 "Set debugfs NVME IO trace depth"); 112 113 static int lpfc_debugfs_mask_disc_trc; 114 module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); 115 MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, 116 "Set debugfs discovery trace mask"); 117 118 #include <linux/debugfs.h> 119 120 static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); 121 static unsigned long lpfc_debugfs_start_time = 0L; 122 123 /* iDiag */ 124 static struct lpfc_idiag idiag; 125 126 /** 127 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer 128 * @vport: The vport to gather the log info from. 129 * @buf: The buffer to dump log into. 130 * @size: The maximum amount of data to process. 131 * 132 * Description: 133 * This routine gathers the lpfc discovery debugfs data from the @vport and 134 * dumps it to @buf up to @size number of bytes. It will start at the next entry 135 * in the log and process the log until the end of the buffer. Then it will 136 * gather from the beginning of the log and process until the current entry. 137 * 138 * Notes: 139 * Discovery logging will be disabled while while this routine dumps the log. 140 * 141 * Return Value: 142 * This routine returns the amount of bytes that were dumped into @buf and will 143 * not exceed @size. 144 **/ 145 static int lpfc_debugfs_disc_trc_data(struct lpfc_vport * vport,char * buf,int size)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 lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba * phba,char * buf,int size)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 lpfc_debugfs_hbqinfo_data(struct lpfc_hba * phba,char * buf,int size)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 lpfc_debugfs_commonxripools_data(struct lpfc_hba * phba,char * buf,int size)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 lpfc_debugfs_multixripools_data(struct lpfc_hba * phba,char * buf,int size)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 lpfc_debugfs_lockstat_data(struct lpfc_hba * phba,char * buf,int size)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 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba * phba,char * buf,int size)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 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba * phba,char * buf,int size)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 lpfc_debugfs_nodelist_data(struct lpfc_vport * vport,char * buf,int size)805 lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) 806 { 807 int len = 0; 808 int i, iocnt, outio, cnt; 809 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 810 struct lpfc_hba *phba = vport->phba; 811 struct lpfc_nodelist *ndlp; 812 unsigned char *statep; 813 struct nvme_fc_local_port *localport; 814 struct nvme_fc_remote_port *nrport = NULL; 815 struct lpfc_nvme_rport *rport; 816 817 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); 818 outio = 0; 819 820 len += scnprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n"); 821 spin_lock_irq(shost->host_lock); 822 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 823 iocnt = 0; 824 if (!cnt) { 825 len += scnprintf(buf+len, size-len, 826 "Missing Nodelist Entries\n"); 827 break; 828 } 829 cnt--; 830 switch (ndlp->nlp_state) { 831 case NLP_STE_UNUSED_NODE: 832 statep = "UNUSED"; 833 break; 834 case NLP_STE_PLOGI_ISSUE: 835 statep = "PLOGI "; 836 break; 837 case NLP_STE_ADISC_ISSUE: 838 statep = "ADISC "; 839 break; 840 case NLP_STE_REG_LOGIN_ISSUE: 841 statep = "REGLOG"; 842 break; 843 case NLP_STE_PRLI_ISSUE: 844 statep = "PRLI "; 845 break; 846 case NLP_STE_LOGO_ISSUE: 847 statep = "LOGO "; 848 break; 849 case NLP_STE_UNMAPPED_NODE: 850 statep = "UNMAP "; 851 iocnt = 1; 852 break; 853 case NLP_STE_MAPPED_NODE: 854 statep = "MAPPED"; 855 iocnt = 1; 856 break; 857 case NLP_STE_NPR_NODE: 858 statep = "NPR "; 859 break; 860 default: 861 statep = "UNKNOWN"; 862 } 863 len += scnprintf(buf+len, size-len, "%s DID:x%06x ", 864 statep, ndlp->nlp_DID); 865 len += scnprintf(buf+len, size-len, 866 "WWPN x%016llx ", 867 wwn_to_u64(ndlp->nlp_portname.u.wwn)); 868 len += scnprintf(buf+len, size-len, 869 "WWNN x%016llx ", 870 wwn_to_u64(ndlp->nlp_nodename.u.wwn)); 871 len += scnprintf(buf+len, size-len, "RPI:x%04x ", 872 ndlp->nlp_rpi); 873 len += scnprintf(buf+len, size-len, "flag:x%08x ", 874 ndlp->nlp_flag); 875 if (!ndlp->nlp_type) 876 len += scnprintf(buf+len, size-len, "UNKNOWN_TYPE "); 877 if (ndlp->nlp_type & NLP_FC_NODE) 878 len += scnprintf(buf+len, size-len, "FC_NODE "); 879 if (ndlp->nlp_type & NLP_FABRIC) { 880 len += scnprintf(buf+len, size-len, "FABRIC "); 881 iocnt = 0; 882 } 883 if (ndlp->nlp_type & NLP_FCP_TARGET) 884 len += scnprintf(buf+len, size-len, "FCP_TGT sid:%d ", 885 ndlp->nlp_sid); 886 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 887 len += scnprintf(buf+len, size-len, "FCP_INITIATOR "); 888 if (ndlp->nlp_type & NLP_NVME_TARGET) 889 len += scnprintf(buf + len, 890 size - len, "NVME_TGT sid:%d ", 891 NLP_NO_SID); 892 if (ndlp->nlp_type & NLP_NVME_INITIATOR) 893 len += scnprintf(buf + len, 894 size - len, "NVME_INITIATOR "); 895 len += scnprintf(buf+len, size-len, "refcnt:%d", 896 kref_read(&ndlp->kref)); 897 if (iocnt) { 898 i = atomic_read(&ndlp->cmd_pending); 899 len += scnprintf(buf + len, size - len, 900 " OutIO:x%x Qdepth x%x", 901 i, ndlp->cmd_qdepth); 902 outio += i; 903 } 904 len += scnprintf(buf+len, size-len, " xpt:x%x", 905 ndlp->fc4_xpt_flags); 906 if (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING) 907 len += scnprintf(buf+len, size-len, " defer:%x", 908 ndlp->nlp_defer_did); 909 len += scnprintf(buf+len, size-len, "\n"); 910 } 911 spin_unlock_irq(shost->host_lock); 912 913 len += scnprintf(buf + len, size - len, 914 "\nOutstanding IO x%x\n", outio); 915 916 if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) { 917 len += scnprintf(buf + len, size - len, 918 "\nNVME Targetport Entry ...\n"); 919 920 /* Port state is only one of two values for now. */ 921 if (phba->targetport->port_id) 922 statep = "REGISTERED"; 923 else 924 statep = "INIT"; 925 len += scnprintf(buf + len, size - len, 926 "TGT WWNN x%llx WWPN x%llx State %s\n", 927 wwn_to_u64(vport->fc_nodename.u.wwn), 928 wwn_to_u64(vport->fc_portname.u.wwn), 929 statep); 930 len += scnprintf(buf + len, size - len, 931 " Targetport DID x%06x\n", 932 phba->targetport->port_id); 933 goto out_exit; 934 } 935 936 len += scnprintf(buf + len, size - len, 937 "\nNVME Lport/Rport Entries ...\n"); 938 939 localport = vport->localport; 940 if (!localport) 941 goto out_exit; 942 943 spin_lock_irq(shost->host_lock); 944 945 /* Port state is only one of two values for now. */ 946 if (localport->port_id) 947 statep = "ONLINE"; 948 else 949 statep = "UNKNOWN "; 950 951 len += scnprintf(buf + len, size - len, 952 "Lport DID x%06x PortState %s\n", 953 localport->port_id, statep); 954 955 len += scnprintf(buf + len, size - len, "\tRport List:\n"); 956 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 957 /* local short-hand pointer. */ 958 spin_lock(&ndlp->lock); 959 rport = lpfc_ndlp_get_nrport(ndlp); 960 if (rport) 961 nrport = rport->remoteport; 962 else 963 nrport = NULL; 964 spin_unlock(&ndlp->lock); 965 if (!nrport) 966 continue; 967 968 /* Port state is only one of two values for now. */ 969 switch (nrport->port_state) { 970 case FC_OBJSTATE_ONLINE: 971 statep = "ONLINE"; 972 break; 973 case FC_OBJSTATE_UNKNOWN: 974 statep = "UNKNOWN "; 975 break; 976 default: 977 statep = "UNSUPPORTED"; 978 break; 979 } 980 981 /* Tab in to show lport ownership. */ 982 len += scnprintf(buf + len, size - len, 983 "\t%s Port ID:x%06x ", 984 statep, nrport->port_id); 985 len += scnprintf(buf + len, size - len, "WWPN x%llx ", 986 nrport->port_name); 987 len += scnprintf(buf + len, size - len, "WWNN x%llx ", 988 nrport->node_name); 989 990 /* An NVME rport can have multiple roles. */ 991 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) 992 len += scnprintf(buf + len, size - len, 993 "INITIATOR "); 994 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) 995 len += scnprintf(buf + len, size - len, 996 "TARGET "); 997 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) 998 len += scnprintf(buf + len, size - len, 999 "DISCSRVC "); 1000 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 1001 FC_PORT_ROLE_NVME_TARGET | 1002 FC_PORT_ROLE_NVME_DISCOVERY)) 1003 len += scnprintf(buf + len, size - len, 1004 "UNKNOWN ROLE x%x", 1005 nrport->port_role); 1006 /* Terminate the string. */ 1007 len += scnprintf(buf + len, size - len, "\n"); 1008 } 1009 1010 spin_unlock_irq(shost->host_lock); 1011 out_exit: 1012 return len; 1013 } 1014 1015 /** 1016 * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer 1017 * @vport: The vport to gather target node info from. 1018 * @buf: The buffer to dump log into. 1019 * @size: The maximum amount of data to process. 1020 * 1021 * Description: 1022 * This routine dumps the NVME statistics associated with @vport 1023 * 1024 * Return Value: 1025 * This routine returns the amount of bytes that were dumped into @buf and will 1026 * not exceed @size. 1027 **/ 1028 static int lpfc_debugfs_nvmestat_data(struct lpfc_vport * vport,char * buf,int size)1029 lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size) 1030 { 1031 struct lpfc_hba *phba = vport->phba; 1032 struct lpfc_nvmet_tgtport *tgtp; 1033 struct lpfc_async_xchg_ctx *ctxp, *next_ctxp; 1034 struct nvme_fc_local_port *localport; 1035 struct lpfc_fc4_ctrl_stat *cstat; 1036 struct lpfc_nvme_lport *lport; 1037 uint64_t data1, data2, data3; 1038 uint64_t tot, totin, totout; 1039 int cnt, i; 1040 int len = 0; 1041 1042 if (phba->nvmet_support) { 1043 if (!phba->targetport) 1044 return len; 1045 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 1046 len += scnprintf(buf + len, size - len, 1047 "\nNVME Targetport Statistics\n"); 1048 1049 len += scnprintf(buf + len, size - len, 1050 "LS: Rcv %08x Drop %08x Abort %08x\n", 1051 atomic_read(&tgtp->rcv_ls_req_in), 1052 atomic_read(&tgtp->rcv_ls_req_drop), 1053 atomic_read(&tgtp->xmt_ls_abort)); 1054 if (atomic_read(&tgtp->rcv_ls_req_in) != 1055 atomic_read(&tgtp->rcv_ls_req_out)) { 1056 len += scnprintf(buf + len, size - len, 1057 "Rcv LS: in %08x != out %08x\n", 1058 atomic_read(&tgtp->rcv_ls_req_in), 1059 atomic_read(&tgtp->rcv_ls_req_out)); 1060 } 1061 1062 len += scnprintf(buf + len, size - len, 1063 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 1064 atomic_read(&tgtp->xmt_ls_rsp), 1065 atomic_read(&tgtp->xmt_ls_drop), 1066 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 1067 1068 len += scnprintf(buf + len, size - len, 1069 "LS: RSP Abort %08x xb %08x Err %08x\n", 1070 atomic_read(&tgtp->xmt_ls_rsp_aborted), 1071 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 1072 atomic_read(&tgtp->xmt_ls_rsp_error)); 1073 1074 len += scnprintf(buf + len, size - len, 1075 "FCP: Rcv %08x Defer %08x Release %08x " 1076 "Drop %08x\n", 1077 atomic_read(&tgtp->rcv_fcp_cmd_in), 1078 atomic_read(&tgtp->rcv_fcp_cmd_defer), 1079 atomic_read(&tgtp->xmt_fcp_release), 1080 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 1081 1082 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 1083 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 1084 len += scnprintf(buf + len, size - len, 1085 "Rcv FCP: in %08x != out %08x\n", 1086 atomic_read(&tgtp->rcv_fcp_cmd_in), 1087 atomic_read(&tgtp->rcv_fcp_cmd_out)); 1088 } 1089 1090 len += scnprintf(buf + len, size - len, 1091 "FCP Rsp: read %08x readrsp %08x " 1092 "write %08x rsp %08x\n", 1093 atomic_read(&tgtp->xmt_fcp_read), 1094 atomic_read(&tgtp->xmt_fcp_read_rsp), 1095 atomic_read(&tgtp->xmt_fcp_write), 1096 atomic_read(&tgtp->xmt_fcp_rsp)); 1097 1098 len += scnprintf(buf + len, size - len, 1099 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 1100 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 1101 atomic_read(&tgtp->xmt_fcp_rsp_error), 1102 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 1103 1104 len += scnprintf(buf + len, size - len, 1105 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 1106 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 1107 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 1108 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 1109 1110 len += scnprintf(buf + len, size - len, 1111 "ABORT: Xmt %08x Cmpl %08x\n", 1112 atomic_read(&tgtp->xmt_fcp_abort), 1113 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 1114 1115 len += scnprintf(buf + len, size - len, 1116 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x", 1117 atomic_read(&tgtp->xmt_abort_sol), 1118 atomic_read(&tgtp->xmt_abort_unsol), 1119 atomic_read(&tgtp->xmt_abort_rsp), 1120 atomic_read(&tgtp->xmt_abort_rsp_error)); 1121 1122 len += scnprintf(buf + len, size - len, "\n"); 1123 1124 cnt = 0; 1125 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1126 list_for_each_entry_safe(ctxp, next_ctxp, 1127 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1128 list) { 1129 cnt++; 1130 } 1131 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1132 if (cnt) { 1133 len += scnprintf(buf + len, size - len, 1134 "ABORT: %d ctx entries\n", cnt); 1135 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1136 list_for_each_entry_safe(ctxp, next_ctxp, 1137 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1138 list) { 1139 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) 1140 break; 1141 len += scnprintf(buf + len, size - len, 1142 "Entry: oxid %x state %x " 1143 "flag %x\n", 1144 ctxp->oxid, ctxp->state, 1145 ctxp->flag); 1146 } 1147 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1148 } 1149 1150 /* Calculate outstanding IOs */ 1151 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 1152 tot += atomic_read(&tgtp->xmt_fcp_release); 1153 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 1154 1155 len += scnprintf(buf + len, size - len, 1156 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 1157 "CTX Outstanding %08llx\n", 1158 phba->sli4_hba.nvmet_xri_cnt, 1159 phba->sli4_hba.nvmet_io_wait_cnt, 1160 phba->sli4_hba.nvmet_io_wait_total, 1161 tot); 1162 } else { 1163 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 1164 return len; 1165 1166 localport = vport->localport; 1167 if (!localport) 1168 return len; 1169 lport = (struct lpfc_nvme_lport *)localport->private; 1170 if (!lport) 1171 return len; 1172 1173 len += scnprintf(buf + len, size - len, 1174 "\nNVME HDWQ Statistics\n"); 1175 1176 len += scnprintf(buf + len, size - len, 1177 "LS: Xmt %016x Cmpl %016x\n", 1178 atomic_read(&lport->fc4NvmeLsRequests), 1179 atomic_read(&lport->fc4NvmeLsCmpls)); 1180 1181 totin = 0; 1182 totout = 0; 1183 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1184 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 1185 tot = cstat->io_cmpls; 1186 totin += tot; 1187 data1 = cstat->input_requests; 1188 data2 = cstat->output_requests; 1189 data3 = cstat->control_requests; 1190 totout += (data1 + data2 + data3); 1191 1192 /* Limit to 32, debugfs display buffer limitation */ 1193 if (i >= 32) 1194 continue; 1195 1196 len += scnprintf(buf + len, PAGE_SIZE - len, 1197 "HDWQ (%d): Rd %016llx Wr %016llx " 1198 "IO %016llx ", 1199 i, data1, data2, data3); 1200 len += scnprintf(buf + len, PAGE_SIZE - len, 1201 "Cmpl %016llx OutIO %016llx\n", 1202 tot, ((data1 + data2 + data3) - tot)); 1203 } 1204 len += scnprintf(buf + len, PAGE_SIZE - len, 1205 "Total FCP Cmpl %016llx Issue %016llx " 1206 "OutIO %016llx\n", 1207 totin, totout, totout - totin); 1208 1209 len += scnprintf(buf + len, size - len, 1210 "LS Xmt Err: Abrt %08x Err %08x " 1211 "Cmpl Err: xb %08x Err %08x\n", 1212 atomic_read(&lport->xmt_ls_abort), 1213 atomic_read(&lport->xmt_ls_err), 1214 atomic_read(&lport->cmpl_ls_xb), 1215 atomic_read(&lport->cmpl_ls_err)); 1216 1217 len += scnprintf(buf + len, size - len, 1218 "FCP Xmt Err: noxri %06x nondlp %06x " 1219 "qdepth %06x wqerr %06x err %06x Abrt %06x\n", 1220 atomic_read(&lport->xmt_fcp_noxri), 1221 atomic_read(&lport->xmt_fcp_bad_ndlp), 1222 atomic_read(&lport->xmt_fcp_qdepth), 1223 atomic_read(&lport->xmt_fcp_wqerr), 1224 atomic_read(&lport->xmt_fcp_err), 1225 atomic_read(&lport->xmt_fcp_abort)); 1226 1227 len += scnprintf(buf + len, size - len, 1228 "FCP Cmpl Err: xb %08x Err %08x\n", 1229 atomic_read(&lport->cmpl_fcp_xb), 1230 atomic_read(&lport->cmpl_fcp_err)); 1231 1232 } 1233 1234 return len; 1235 } 1236 1237 /** 1238 * lpfc_debugfs_scsistat_data - Dump target node list to a buffer 1239 * @vport: The vport to gather target node info from. 1240 * @buf: The buffer to dump log into. 1241 * @size: The maximum amount of data to process. 1242 * 1243 * Description: 1244 * This routine dumps the SCSI statistics associated with @vport 1245 * 1246 * Return Value: 1247 * This routine returns the amount of bytes that were dumped into @buf and will 1248 * not exceed @size. 1249 **/ 1250 static int lpfc_debugfs_scsistat_data(struct lpfc_vport * vport,char * buf,int size)1251 lpfc_debugfs_scsistat_data(struct lpfc_vport *vport, char *buf, int size) 1252 { 1253 int len; 1254 struct lpfc_hba *phba = vport->phba; 1255 struct lpfc_fc4_ctrl_stat *cstat; 1256 u64 data1, data2, data3; 1257 u64 tot, totin, totout; 1258 int i; 1259 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 1260 1261 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 1262 (phba->sli_rev != LPFC_SLI_REV4)) 1263 return 0; 1264 1265 scnprintf(buf, size, "SCSI HDWQ Statistics\n"); 1266 1267 totin = 0; 1268 totout = 0; 1269 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1270 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 1271 tot = cstat->io_cmpls; 1272 totin += tot; 1273 data1 = cstat->input_requests; 1274 data2 = cstat->output_requests; 1275 data3 = cstat->control_requests; 1276 totout += (data1 + data2 + data3); 1277 1278 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 1279 "IO %016llx ", i, data1, data2, data3); 1280 if (strlcat(buf, tmp, size) >= size) 1281 goto buffer_done; 1282 1283 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 1284 tot, ((data1 + data2 + data3) - tot)); 1285 if (strlcat(buf, tmp, size) >= size) 1286 goto buffer_done; 1287 } 1288 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 1289 "OutIO %016llx\n", totin, totout, totout - totin); 1290 strlcat(buf, tmp, size); 1291 1292 buffer_done: 1293 len = strnlen(buf, size); 1294 1295 return len; 1296 } 1297 1298 void lpfc_io_ktime(struct lpfc_hba * phba,struct lpfc_io_buf * lpfc_cmd)1299 lpfc_io_ktime(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) 1300 { 1301 uint64_t seg1, seg2, seg3, seg4; 1302 uint64_t segsum; 1303 1304 if (!lpfc_cmd->ts_last_cmd || 1305 !lpfc_cmd->ts_cmd_start || 1306 !lpfc_cmd->ts_cmd_wqput || 1307 !lpfc_cmd->ts_isr_cmpl || 1308 !lpfc_cmd->ts_data_io) 1309 return; 1310 1311 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_cmd_start) 1312 return; 1313 if (lpfc_cmd->ts_cmd_start < lpfc_cmd->ts_last_cmd) 1314 return; 1315 if (lpfc_cmd->ts_cmd_wqput < lpfc_cmd->ts_cmd_start) 1316 return; 1317 if (lpfc_cmd->ts_isr_cmpl < lpfc_cmd->ts_cmd_wqput) 1318 return; 1319 if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_isr_cmpl) 1320 return; 1321 /* 1322 * Segment 1 - Time from Last FCP command cmpl is handed 1323 * off to NVME Layer to start of next command. 1324 * Segment 2 - Time from Driver receives a IO cmd start 1325 * from NVME Layer to WQ put is done on IO cmd. 1326 * Segment 3 - Time from Driver WQ put is done on IO cmd 1327 * to MSI-X ISR for IO cmpl. 1328 * Segment 4 - Time from MSI-X ISR for IO cmpl to when 1329 * cmpl is handled off to the NVME Layer. 1330 */ 1331 seg1 = lpfc_cmd->ts_cmd_start - lpfc_cmd->ts_last_cmd; 1332 if (seg1 > 5000000) /* 5 ms - for sequential IOs only */ 1333 seg1 = 0; 1334 1335 /* Calculate times relative to start of IO */ 1336 seg2 = (lpfc_cmd->ts_cmd_wqput - lpfc_cmd->ts_cmd_start); 1337 segsum = seg2; 1338 seg3 = lpfc_cmd->ts_isr_cmpl - lpfc_cmd->ts_cmd_start; 1339 if (segsum > seg3) 1340 return; 1341 seg3 -= segsum; 1342 segsum += seg3; 1343 1344 seg4 = lpfc_cmd->ts_data_io - lpfc_cmd->ts_cmd_start; 1345 if (segsum > seg4) 1346 return; 1347 seg4 -= segsum; 1348 1349 phba->ktime_data_samples++; 1350 phba->ktime_seg1_total += seg1; 1351 if (seg1 < phba->ktime_seg1_min) 1352 phba->ktime_seg1_min = seg1; 1353 else if (seg1 > phba->ktime_seg1_max) 1354 phba->ktime_seg1_max = seg1; 1355 phba->ktime_seg2_total += seg2; 1356 if (seg2 < phba->ktime_seg2_min) 1357 phba->ktime_seg2_min = seg2; 1358 else if (seg2 > phba->ktime_seg2_max) 1359 phba->ktime_seg2_max = seg2; 1360 phba->ktime_seg3_total += seg3; 1361 if (seg3 < phba->ktime_seg3_min) 1362 phba->ktime_seg3_min = seg3; 1363 else if (seg3 > phba->ktime_seg3_max) 1364 phba->ktime_seg3_max = seg3; 1365 phba->ktime_seg4_total += seg4; 1366 if (seg4 < phba->ktime_seg4_min) 1367 phba->ktime_seg4_min = seg4; 1368 else if (seg4 > phba->ktime_seg4_max) 1369 phba->ktime_seg4_max = seg4; 1370 1371 lpfc_cmd->ts_last_cmd = 0; 1372 lpfc_cmd->ts_cmd_start = 0; 1373 lpfc_cmd->ts_cmd_wqput = 0; 1374 lpfc_cmd->ts_isr_cmpl = 0; 1375 lpfc_cmd->ts_data_io = 0; 1376 } 1377 1378 /** 1379 * lpfc_debugfs_ioktime_data - Dump target node list to a buffer 1380 * @vport: The vport to gather target node info from. 1381 * @buf: The buffer to dump log into. 1382 * @size: The maximum amount of data to process. 1383 * 1384 * Description: 1385 * This routine dumps the NVME statistics associated with @vport 1386 * 1387 * Return Value: 1388 * This routine returns the amount of bytes that were dumped into @buf and will 1389 * not exceed @size. 1390 **/ 1391 static int lpfc_debugfs_ioktime_data(struct lpfc_vport * vport,char * buf,int size)1392 lpfc_debugfs_ioktime_data(struct lpfc_vport *vport, char *buf, int size) 1393 { 1394 struct lpfc_hba *phba = vport->phba; 1395 int len = 0; 1396 1397 if (phba->nvmet_support == 0) { 1398 /* Initiator */ 1399 len += scnprintf(buf + len, PAGE_SIZE - len, 1400 "ktime %s: Total Samples: %lld\n", 1401 (phba->ktime_on ? "Enabled" : "Disabled"), 1402 phba->ktime_data_samples); 1403 if (phba->ktime_data_samples == 0) 1404 return len; 1405 1406 len += scnprintf( 1407 buf + len, PAGE_SIZE - len, 1408 "Segment 1: Last Cmd cmpl " 1409 "done -to- Start of next Cmd (in driver)\n"); 1410 len += scnprintf( 1411 buf + len, PAGE_SIZE - len, 1412 "avg:%08lld min:%08lld max %08lld\n", 1413 div_u64(phba->ktime_seg1_total, 1414 phba->ktime_data_samples), 1415 phba->ktime_seg1_min, 1416 phba->ktime_seg1_max); 1417 len += scnprintf( 1418 buf + len, PAGE_SIZE - len, 1419 "Segment 2: Driver start of Cmd " 1420 "-to- Firmware WQ doorbell\n"); 1421 len += scnprintf( 1422 buf + len, PAGE_SIZE - len, 1423 "avg:%08lld min:%08lld max %08lld\n", 1424 div_u64(phba->ktime_seg2_total, 1425 phba->ktime_data_samples), 1426 phba->ktime_seg2_min, 1427 phba->ktime_seg2_max); 1428 len += scnprintf( 1429 buf + len, PAGE_SIZE - len, 1430 "Segment 3: Firmware WQ doorbell -to- " 1431 "MSI-X ISR cmpl\n"); 1432 len += scnprintf( 1433 buf + len, PAGE_SIZE - len, 1434 "avg:%08lld min:%08lld max %08lld\n", 1435 div_u64(phba->ktime_seg3_total, 1436 phba->ktime_data_samples), 1437 phba->ktime_seg3_min, 1438 phba->ktime_seg3_max); 1439 len += scnprintf( 1440 buf + len, PAGE_SIZE - len, 1441 "Segment 4: MSI-X ISR cmpl -to- " 1442 "Cmd cmpl done\n"); 1443 len += scnprintf( 1444 buf + len, PAGE_SIZE - len, 1445 "avg:%08lld min:%08lld max %08lld\n", 1446 div_u64(phba->ktime_seg4_total, 1447 phba->ktime_data_samples), 1448 phba->ktime_seg4_min, 1449 phba->ktime_seg4_max); 1450 len += scnprintf( 1451 buf + len, PAGE_SIZE - len, 1452 "Total IO avg time: %08lld\n", 1453 div_u64(phba->ktime_seg1_total + 1454 phba->ktime_seg2_total + 1455 phba->ktime_seg3_total + 1456 phba->ktime_seg4_total, 1457 phba->ktime_data_samples)); 1458 return len; 1459 } 1460 1461 /* NVME Target */ 1462 len += scnprintf(buf + len, PAGE_SIZE-len, 1463 "ktime %s: Total Samples: %lld %lld\n", 1464 (phba->ktime_on ? "Enabled" : "Disabled"), 1465 phba->ktime_data_samples, 1466 phba->ktime_status_samples); 1467 if (phba->ktime_data_samples == 0) 1468 return len; 1469 1470 len += scnprintf(buf + len, PAGE_SIZE-len, 1471 "Segment 1: MSI-X ISR Rcv cmd -to- " 1472 "cmd pass to NVME Layer\n"); 1473 len += scnprintf(buf + len, PAGE_SIZE-len, 1474 "avg:%08lld min:%08lld max %08lld\n", 1475 div_u64(phba->ktime_seg1_total, 1476 phba->ktime_data_samples), 1477 phba->ktime_seg1_min, 1478 phba->ktime_seg1_max); 1479 len += scnprintf(buf + len, PAGE_SIZE-len, 1480 "Segment 2: cmd pass to NVME Layer- " 1481 "-to- Driver rcv cmd OP (action)\n"); 1482 len += scnprintf(buf + len, PAGE_SIZE-len, 1483 "avg:%08lld min:%08lld max %08lld\n", 1484 div_u64(phba->ktime_seg2_total, 1485 phba->ktime_data_samples), 1486 phba->ktime_seg2_min, 1487 phba->ktime_seg2_max); 1488 len += scnprintf(buf + len, PAGE_SIZE-len, 1489 "Segment 3: Driver rcv cmd OP -to- " 1490 "Firmware WQ doorbell: cmd\n"); 1491 len += scnprintf(buf + len, PAGE_SIZE-len, 1492 "avg:%08lld min:%08lld max %08lld\n", 1493 div_u64(phba->ktime_seg3_total, 1494 phba->ktime_data_samples), 1495 phba->ktime_seg3_min, 1496 phba->ktime_seg3_max); 1497 len += scnprintf(buf + len, PAGE_SIZE-len, 1498 "Segment 4: Firmware WQ doorbell: cmd " 1499 "-to- MSI-X ISR for cmd cmpl\n"); 1500 len += scnprintf(buf + len, PAGE_SIZE-len, 1501 "avg:%08lld min:%08lld max %08lld\n", 1502 div_u64(phba->ktime_seg4_total, 1503 phba->ktime_data_samples), 1504 phba->ktime_seg4_min, 1505 phba->ktime_seg4_max); 1506 len += scnprintf(buf + len, PAGE_SIZE-len, 1507 "Segment 5: MSI-X ISR for cmd cmpl " 1508 "-to- NVME layer passed cmd done\n"); 1509 len += scnprintf(buf + len, PAGE_SIZE-len, 1510 "avg:%08lld min:%08lld max %08lld\n", 1511 div_u64(phba->ktime_seg5_total, 1512 phba->ktime_data_samples), 1513 phba->ktime_seg5_min, 1514 phba->ktime_seg5_max); 1515 1516 if (phba->ktime_status_samples == 0) { 1517 len += scnprintf(buf + len, PAGE_SIZE-len, 1518 "Total: cmd received by MSI-X ISR " 1519 "-to- cmd completed on wire\n"); 1520 len += scnprintf(buf + len, PAGE_SIZE-len, 1521 "avg:%08lld min:%08lld " 1522 "max %08lld\n", 1523 div_u64(phba->ktime_seg10_total, 1524 phba->ktime_data_samples), 1525 phba->ktime_seg10_min, 1526 phba->ktime_seg10_max); 1527 return len; 1528 } 1529 1530 len += scnprintf(buf + len, PAGE_SIZE-len, 1531 "Segment 6: NVME layer passed cmd done " 1532 "-to- Driver rcv rsp status OP\n"); 1533 len += scnprintf(buf + len, PAGE_SIZE-len, 1534 "avg:%08lld min:%08lld max %08lld\n", 1535 div_u64(phba->ktime_seg6_total, 1536 phba->ktime_status_samples), 1537 phba->ktime_seg6_min, 1538 phba->ktime_seg6_max); 1539 len += scnprintf(buf + len, PAGE_SIZE-len, 1540 "Segment 7: Driver rcv rsp status OP " 1541 "-to- Firmware WQ doorbell: status\n"); 1542 len += scnprintf(buf + len, PAGE_SIZE-len, 1543 "avg:%08lld min:%08lld max %08lld\n", 1544 div_u64(phba->ktime_seg7_total, 1545 phba->ktime_status_samples), 1546 phba->ktime_seg7_min, 1547 phba->ktime_seg7_max); 1548 len += scnprintf(buf + len, PAGE_SIZE-len, 1549 "Segment 8: Firmware WQ doorbell: status" 1550 " -to- MSI-X ISR for status cmpl\n"); 1551 len += scnprintf(buf + len, PAGE_SIZE-len, 1552 "avg:%08lld min:%08lld max %08lld\n", 1553 div_u64(phba->ktime_seg8_total, 1554 phba->ktime_status_samples), 1555 phba->ktime_seg8_min, 1556 phba->ktime_seg8_max); 1557 len += scnprintf(buf + len, PAGE_SIZE-len, 1558 "Segment 9: MSI-X ISR for status cmpl " 1559 "-to- NVME layer passed status done\n"); 1560 len += scnprintf(buf + len, PAGE_SIZE-len, 1561 "avg:%08lld min:%08lld max %08lld\n", 1562 div_u64(phba->ktime_seg9_total, 1563 phba->ktime_status_samples), 1564 phba->ktime_seg9_min, 1565 phba->ktime_seg9_max); 1566 len += scnprintf(buf + len, PAGE_SIZE-len, 1567 "Total: cmd received by MSI-X ISR -to- " 1568 "cmd completed on wire\n"); 1569 len += scnprintf(buf + len, PAGE_SIZE-len, 1570 "avg:%08lld min:%08lld max %08lld\n", 1571 div_u64(phba->ktime_seg10_total, 1572 phba->ktime_status_samples), 1573 phba->ktime_seg10_min, 1574 phba->ktime_seg10_max); 1575 return len; 1576 } 1577 1578 /** 1579 * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer 1580 * @phba: The phba to gather target node info from. 1581 * @buf: The buffer to dump log into. 1582 * @size: The maximum amount of data to process. 1583 * 1584 * Description: 1585 * This routine dumps the NVME IO trace associated with @phba 1586 * 1587 * Return Value: 1588 * This routine returns the amount of bytes that were dumped into @buf and will 1589 * not exceed @size. 1590 **/ 1591 static int lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba * phba,char * buf,int size)1592 lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size) 1593 { 1594 struct lpfc_debugfs_nvmeio_trc *dtp; 1595 int i, state, index, skip; 1596 int len = 0; 1597 1598 state = phba->nvmeio_trc_on; 1599 1600 index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) & 1601 (phba->nvmeio_trc_size - 1); 1602 skip = phba->nvmeio_trc_output_idx; 1603 1604 len += scnprintf(buf + len, size - len, 1605 "%s IO Trace %s: next_idx %d skip %d size %d\n", 1606 (phba->nvmet_support ? "NVME" : "NVMET"), 1607 (state ? "Enabled" : "Disabled"), 1608 index, skip, phba->nvmeio_trc_size); 1609 1610 if (!phba->nvmeio_trc || state) 1611 return len; 1612 1613 /* trace MUST bhe off to continue */ 1614 1615 for (i = index; i < phba->nvmeio_trc_size; i++) { 1616 if (skip) { 1617 skip--; 1618 continue; 1619 } 1620 dtp = phba->nvmeio_trc + i; 1621 phba->nvmeio_trc_output_idx++; 1622 1623 if (!dtp->fmt) 1624 continue; 1625 1626 len += scnprintf(buf + len, size - len, dtp->fmt, 1627 dtp->data1, dtp->data2, dtp->data3); 1628 1629 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1630 phba->nvmeio_trc_output_idx = 0; 1631 len += scnprintf(buf + len, size - len, 1632 "Trace Complete\n"); 1633 goto out; 1634 } 1635 1636 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1637 len += scnprintf(buf + len, size - len, 1638 "Trace Continue (%d of %d)\n", 1639 phba->nvmeio_trc_output_idx, 1640 phba->nvmeio_trc_size); 1641 goto out; 1642 } 1643 } 1644 for (i = 0; i < index; i++) { 1645 if (skip) { 1646 skip--; 1647 continue; 1648 } 1649 dtp = phba->nvmeio_trc + i; 1650 phba->nvmeio_trc_output_idx++; 1651 1652 if (!dtp->fmt) 1653 continue; 1654 1655 len += scnprintf(buf + len, size - len, dtp->fmt, 1656 dtp->data1, dtp->data2, dtp->data3); 1657 1658 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { 1659 phba->nvmeio_trc_output_idx = 0; 1660 len += scnprintf(buf + len, size - len, 1661 "Trace Complete\n"); 1662 goto out; 1663 } 1664 1665 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { 1666 len += scnprintf(buf + len, size - len, 1667 "Trace Continue (%d of %d)\n", 1668 phba->nvmeio_trc_output_idx, 1669 phba->nvmeio_trc_size); 1670 goto out; 1671 } 1672 } 1673 1674 len += scnprintf(buf + len, size - len, 1675 "Trace Done\n"); 1676 out: 1677 return len; 1678 } 1679 1680 /** 1681 * lpfc_debugfs_hdwqstat_data - Dump I/O stats to a buffer 1682 * @vport: The vport to gather target node info from. 1683 * @buf: The buffer to dump log into. 1684 * @size: The maximum amount of data to process. 1685 * 1686 * Description: 1687 * This routine dumps the NVME + SCSI statistics associated with @vport 1688 * 1689 * Return Value: 1690 * This routine returns the amount of bytes that were dumped into @buf and will 1691 * not exceed @size. 1692 **/ 1693 static int lpfc_debugfs_hdwqstat_data(struct lpfc_vport * vport,char * buf,int size)1694 lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size) 1695 { 1696 struct lpfc_hba *phba = vport->phba; 1697 struct lpfc_hdwq_stat *c_stat; 1698 int i, j, len; 1699 uint32_t tot_xmt; 1700 uint32_t tot_rcv; 1701 uint32_t tot_cmpl; 1702 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 1703 1704 scnprintf(tmp, sizeof(tmp), "HDWQ Stats:\n\n"); 1705 if (strlcat(buf, tmp, size) >= size) 1706 goto buffer_done; 1707 1708 scnprintf(tmp, sizeof(tmp), "(NVME Accounting: %s) ", 1709 (phba->hdwqstat_on & 1710 (LPFC_CHECK_NVME_IO | LPFC_CHECK_NVMET_IO) ? 1711 "Enabled" : "Disabled")); 1712 if (strlcat(buf, tmp, size) >= size) 1713 goto buffer_done; 1714 1715 scnprintf(tmp, sizeof(tmp), "(SCSI Accounting: %s) ", 1716 (phba->hdwqstat_on & LPFC_CHECK_SCSI_IO ? 1717 "Enabled" : "Disabled")); 1718 if (strlcat(buf, tmp, size) >= size) 1719 goto buffer_done; 1720 1721 scnprintf(tmp, sizeof(tmp), "\n\n"); 1722 if (strlcat(buf, tmp, size) >= size) 1723 goto buffer_done; 1724 1725 for (i = 0; i < phba->cfg_hdw_queue; i++) { 1726 tot_rcv = 0; 1727 tot_xmt = 0; 1728 tot_cmpl = 0; 1729 1730 for_each_present_cpu(j) { 1731 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, j); 1732 1733 /* Only display for this HDWQ */ 1734 if (i != c_stat->hdwq_no) 1735 continue; 1736 1737 /* Only display non-zero counters */ 1738 if (!c_stat->xmt_io && !c_stat->cmpl_io && 1739 !c_stat->rcv_io) 1740 continue; 1741 1742 if (!tot_xmt && !tot_cmpl && !tot_rcv) { 1743 /* Print HDWQ string only the first time */ 1744 scnprintf(tmp, sizeof(tmp), "[HDWQ %d]:\t", i); 1745 if (strlcat(buf, tmp, size) >= size) 1746 goto buffer_done; 1747 } 1748 1749 tot_xmt += c_stat->xmt_io; 1750 tot_cmpl += c_stat->cmpl_io; 1751 if (phba->nvmet_support) 1752 tot_rcv += c_stat->rcv_io; 1753 1754 scnprintf(tmp, sizeof(tmp), "| [CPU %d]: ", j); 1755 if (strlcat(buf, tmp, size) >= size) 1756 goto buffer_done; 1757 1758 if (phba->nvmet_support) { 1759 scnprintf(tmp, sizeof(tmp), 1760 "XMT 0x%x CMPL 0x%x RCV 0x%x |", 1761 c_stat->xmt_io, c_stat->cmpl_io, 1762 c_stat->rcv_io); 1763 if (strlcat(buf, tmp, size) >= size) 1764 goto buffer_done; 1765 } else { 1766 scnprintf(tmp, sizeof(tmp), 1767 "XMT 0x%x CMPL 0x%x |", 1768 c_stat->xmt_io, c_stat->cmpl_io); 1769 if (strlcat(buf, tmp, size) >= size) 1770 goto buffer_done; 1771 } 1772 } 1773 1774 /* Check if nothing to display */ 1775 if (!tot_xmt && !tot_cmpl && !tot_rcv) 1776 continue; 1777 1778 scnprintf(tmp, sizeof(tmp), "\t->\t[HDWQ Total: "); 1779 if (strlcat(buf, tmp, size) >= size) 1780 goto buffer_done; 1781 1782 if (phba->nvmet_support) { 1783 scnprintf(tmp, sizeof(tmp), 1784 "XMT 0x%x CMPL 0x%x RCV 0x%x]\n\n", 1785 tot_xmt, tot_cmpl, tot_rcv); 1786 if (strlcat(buf, tmp, size) >= size) 1787 goto buffer_done; 1788 } else { 1789 scnprintf(tmp, sizeof(tmp), 1790 "XMT 0x%x CMPL 0x%x]\n\n", 1791 tot_xmt, tot_cmpl); 1792 if (strlcat(buf, tmp, size) >= size) 1793 goto buffer_done; 1794 } 1795 } 1796 1797 buffer_done: 1798 len = strnlen(buf, size); 1799 return len; 1800 } 1801 1802 #endif 1803 1804 /** 1805 * lpfc_debugfs_disc_trc - Store discovery trace log 1806 * @vport: The vport to associate this trace string with for retrieval. 1807 * @mask: Log entry classification. 1808 * @fmt: Format string to be displayed when dumping the log. 1809 * @data1: 1st data parameter to be applied to @fmt. 1810 * @data2: 2nd data parameter to be applied to @fmt. 1811 * @data3: 3rd data parameter to be applied to @fmt. 1812 * 1813 * Description: 1814 * This routine is used by the driver code to add a debugfs log entry to the 1815 * discovery trace buffer associated with @vport. Only entries with a @mask that 1816 * match the current debugfs discovery mask will be saved. Entries that do not 1817 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like 1818 * printf when displaying the log. 1819 **/ 1820 inline void lpfc_debugfs_disc_trc(struct lpfc_vport * vport,int mask,char * fmt,uint32_t data1,uint32_t data2,uint32_t data3)1821 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 1822 uint32_t data1, uint32_t data2, uint32_t data3) 1823 { 1824 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1825 struct lpfc_debugfs_trc *dtp; 1826 int index; 1827 1828 if (!(lpfc_debugfs_mask_disc_trc & mask)) 1829 return; 1830 1831 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || 1832 !vport || !vport->disc_trc) 1833 return; 1834 1835 index = atomic_inc_return(&vport->disc_trc_cnt) & 1836 (lpfc_debugfs_max_disc_trc - 1); 1837 dtp = vport->disc_trc + index; 1838 dtp->fmt = fmt; 1839 dtp->data1 = data1; 1840 dtp->data2 = data2; 1841 dtp->data3 = data3; 1842 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1843 dtp->jif = jiffies; 1844 #endif 1845 return; 1846 } 1847 1848 /** 1849 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log 1850 * @phba: The phba to associate this trace string with for retrieval. 1851 * @fmt: Format string to be displayed when dumping the log. 1852 * @data1: 1st data parameter to be applied to @fmt. 1853 * @data2: 2nd data parameter to be applied to @fmt. 1854 * @data3: 3rd data parameter to be applied to @fmt. 1855 * 1856 * Description: 1857 * This routine is used by the driver code to add a debugfs log entry to the 1858 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and 1859 * @data3 are used like printf when displaying the log. 1860 **/ 1861 inline void lpfc_debugfs_slow_ring_trc(struct lpfc_hba * phba,char * fmt,uint32_t data1,uint32_t data2,uint32_t data3)1862 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 1863 uint32_t data1, uint32_t data2, uint32_t data3) 1864 { 1865 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1866 struct lpfc_debugfs_trc *dtp; 1867 int index; 1868 1869 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || 1870 !phba || !phba->slow_ring_trc) 1871 return; 1872 1873 index = atomic_inc_return(&phba->slow_ring_trc_cnt) & 1874 (lpfc_debugfs_max_slow_ring_trc - 1); 1875 dtp = phba->slow_ring_trc + index; 1876 dtp->fmt = fmt; 1877 dtp->data1 = data1; 1878 dtp->data2 = data2; 1879 dtp->data3 = data3; 1880 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); 1881 dtp->jif = jiffies; 1882 #endif 1883 return; 1884 } 1885 1886 /** 1887 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log 1888 * @phba: The phba to associate this trace string with for retrieval. 1889 * @fmt: Format string to be displayed when dumping the log. 1890 * @data1: 1st data parameter to be applied to @fmt. 1891 * @data2: 2nd data parameter to be applied to @fmt. 1892 * @data3: 3rd data parameter to be applied to @fmt. 1893 * 1894 * Description: 1895 * This routine is used by the driver code to add a debugfs log entry to the 1896 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and 1897 * @data3 are used like printf when displaying the log. 1898 **/ 1899 inline void lpfc_debugfs_nvme_trc(struct lpfc_hba * phba,char * fmt,uint16_t data1,uint16_t data2,uint32_t data3)1900 lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, 1901 uint16_t data1, uint16_t data2, uint32_t data3) 1902 { 1903 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1904 struct lpfc_debugfs_nvmeio_trc *dtp; 1905 int index; 1906 1907 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) 1908 return; 1909 1910 index = atomic_inc_return(&phba->nvmeio_trc_cnt) & 1911 (phba->nvmeio_trc_size - 1); 1912 dtp = phba->nvmeio_trc + index; 1913 dtp->fmt = fmt; 1914 dtp->data1 = data1; 1915 dtp->data2 = data2; 1916 dtp->data3 = data3; 1917 #endif 1918 } 1919 1920 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 1921 /** 1922 * lpfc_debugfs_disc_trc_open - Open the discovery trace log 1923 * @inode: The inode pointer that contains a vport pointer. 1924 * @file: The file pointer to attach the log output. 1925 * 1926 * Description: 1927 * This routine is the entry point for the debugfs open file operation. It gets 1928 * the vport from the i_private field in @inode, allocates the necessary buffer 1929 * for the log, fills the buffer from the in-memory log for this vport, and then 1930 * returns a pointer to that log in the private_data field in @file. 1931 * 1932 * Returns: 1933 * This function returns zero if successful. On error it will return a negative 1934 * error value. 1935 **/ 1936 static int lpfc_debugfs_disc_trc_open(struct inode * inode,struct file * file)1937 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 1938 { 1939 struct lpfc_vport *vport = inode->i_private; 1940 struct lpfc_debug *debug; 1941 int size; 1942 int rc = -ENOMEM; 1943 1944 if (!lpfc_debugfs_max_disc_trc) { 1945 rc = -ENOSPC; 1946 goto out; 1947 } 1948 1949 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 1950 if (!debug) 1951 goto out; 1952 1953 /* Round to page boundary */ 1954 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 1955 size = PAGE_ALIGN(size); 1956 1957 debug->buffer = kmalloc(size, GFP_KERNEL); 1958 if (!debug->buffer) { 1959 kfree(debug); 1960 goto out; 1961 } 1962 1963 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); 1964 file->private_data = debug; 1965 1966 rc = 0; 1967 out: 1968 return rc; 1969 } 1970 1971 /** 1972 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log 1973 * @inode: The inode pointer that contains a vport pointer. 1974 * @file: The file pointer to attach the log output. 1975 * 1976 * Description: 1977 * This routine is the entry point for the debugfs open file operation. It gets 1978 * the vport from the i_private field in @inode, allocates the necessary buffer 1979 * for the log, fills the buffer from the in-memory log for this vport, and then 1980 * returns a pointer to that log in the private_data field in @file. 1981 * 1982 * Returns: 1983 * This function returns zero if successful. On error it will return a negative 1984 * error value. 1985 **/ 1986 static int lpfc_debugfs_slow_ring_trc_open(struct inode * inode,struct file * file)1987 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 1988 { 1989 struct lpfc_hba *phba = inode->i_private; 1990 struct lpfc_debug *debug; 1991 int size; 1992 int rc = -ENOMEM; 1993 1994 if (!lpfc_debugfs_max_slow_ring_trc) { 1995 rc = -ENOSPC; 1996 goto out; 1997 } 1998 1999 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2000 if (!debug) 2001 goto out; 2002 2003 /* Round to page boundary */ 2004 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 2005 size = PAGE_ALIGN(size); 2006 2007 debug->buffer = kmalloc(size, GFP_KERNEL); 2008 if (!debug->buffer) { 2009 kfree(debug); 2010 goto out; 2011 } 2012 2013 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); 2014 file->private_data = debug; 2015 2016 rc = 0; 2017 out: 2018 return rc; 2019 } 2020 2021 /** 2022 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer 2023 * @inode: The inode pointer that contains a vport pointer. 2024 * @file: The file pointer to attach the log output. 2025 * 2026 * Description: 2027 * This routine is the entry point for the debugfs open file operation. It gets 2028 * the vport from the i_private field in @inode, allocates the necessary buffer 2029 * for the log, fills the buffer from the in-memory log for this vport, and then 2030 * returns a pointer to that log in the private_data field in @file. 2031 * 2032 * Returns: 2033 * This function returns zero if successful. On error it will return a negative 2034 * error value. 2035 **/ 2036 static int lpfc_debugfs_hbqinfo_open(struct inode * inode,struct file * file)2037 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 2038 { 2039 struct lpfc_hba *phba = inode->i_private; 2040 struct lpfc_debug *debug; 2041 int rc = -ENOMEM; 2042 2043 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2044 if (!debug) 2045 goto out; 2046 2047 /* Round to page boundary */ 2048 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 2049 if (!debug->buffer) { 2050 kfree(debug); 2051 goto out; 2052 } 2053 2054 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, 2055 LPFC_HBQINFO_SIZE); 2056 file->private_data = debug; 2057 2058 rc = 0; 2059 out: 2060 return rc; 2061 } 2062 2063 /** 2064 * lpfc_debugfs_multixripools_open - Open the multixripool debugfs buffer 2065 * @inode: The inode pointer that contains a hba pointer. 2066 * @file: The file pointer to attach the log output. 2067 * 2068 * Description: 2069 * This routine is the entry point for the debugfs open file operation. It gets 2070 * the hba from the i_private field in @inode, allocates the necessary buffer 2071 * for the log, fills the buffer from the in-memory log for this hba, and then 2072 * returns a pointer to that log in the private_data field in @file. 2073 * 2074 * Returns: 2075 * This function returns zero if successful. On error it will return a negative 2076 * error value. 2077 **/ 2078 static int lpfc_debugfs_multixripools_open(struct inode * inode,struct file * file)2079 lpfc_debugfs_multixripools_open(struct inode *inode, struct file *file) 2080 { 2081 struct lpfc_hba *phba = inode->i_private; 2082 struct lpfc_debug *debug; 2083 int rc = -ENOMEM; 2084 2085 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2086 if (!debug) 2087 goto out; 2088 2089 /* Round to page boundary */ 2090 debug->buffer = kzalloc(LPFC_DUMP_MULTIXRIPOOL_SIZE, GFP_KERNEL); 2091 if (!debug->buffer) { 2092 kfree(debug); 2093 goto out; 2094 } 2095 2096 debug->len = lpfc_debugfs_multixripools_data( 2097 phba, debug->buffer, LPFC_DUMP_MULTIXRIPOOL_SIZE); 2098 2099 debug->i_private = inode->i_private; 2100 file->private_data = debug; 2101 2102 rc = 0; 2103 out: 2104 return rc; 2105 } 2106 2107 #ifdef LPFC_HDWQ_LOCK_STAT 2108 /** 2109 * lpfc_debugfs_lockstat_open - Open the lockstat debugfs buffer 2110 * @inode: The inode pointer that contains a vport pointer. 2111 * @file: The file pointer to attach the log output. 2112 * 2113 * Description: 2114 * This routine is the entry point for the debugfs open file operation. It gets 2115 * the vport from the i_private field in @inode, allocates the necessary buffer 2116 * for the log, fills the buffer from the in-memory log for this vport, and then 2117 * returns a pointer to that log in the private_data field in @file. 2118 * 2119 * Returns: 2120 * This function returns zero if successful. On error it will return a negative 2121 * error value. 2122 **/ 2123 static int lpfc_debugfs_lockstat_open(struct inode * inode,struct file * file)2124 lpfc_debugfs_lockstat_open(struct inode *inode, struct file *file) 2125 { 2126 struct lpfc_hba *phba = inode->i_private; 2127 struct lpfc_debug *debug; 2128 int rc = -ENOMEM; 2129 2130 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2131 if (!debug) 2132 goto out; 2133 2134 /* Round to page boundary */ 2135 debug->buffer = kmalloc(LPFC_HDWQINFO_SIZE, GFP_KERNEL); 2136 if (!debug->buffer) { 2137 kfree(debug); 2138 goto out; 2139 } 2140 2141 debug->len = lpfc_debugfs_lockstat_data(phba, debug->buffer, 2142 LPFC_HBQINFO_SIZE); 2143 file->private_data = debug; 2144 2145 rc = 0; 2146 out: 2147 return rc; 2148 } 2149 2150 static ssize_t lpfc_debugfs_lockstat_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)2151 lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf, 2152 size_t nbytes, loff_t *ppos) 2153 { 2154 struct lpfc_debug *debug = file->private_data; 2155 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2156 struct lpfc_sli4_hdw_queue *qp; 2157 char mybuf[64]; 2158 char *pbuf; 2159 int i; 2160 size_t bsize; 2161 2162 memset(mybuf, 0, sizeof(mybuf)); 2163 2164 bsize = min(nbytes, (sizeof(mybuf) - 1)); 2165 2166 if (copy_from_user(mybuf, buf, bsize)) 2167 return -EFAULT; 2168 pbuf = &mybuf[0]; 2169 2170 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2171 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2172 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2173 qp = &phba->sli4_hba.hdwq[i]; 2174 qp->lock_conflict.alloc_xri_get = 0; 2175 qp->lock_conflict.alloc_xri_put = 0; 2176 qp->lock_conflict.free_xri = 0; 2177 qp->lock_conflict.wq_access = 0; 2178 qp->lock_conflict.alloc_pvt_pool = 0; 2179 qp->lock_conflict.mv_from_pvt_pool = 0; 2180 qp->lock_conflict.mv_to_pub_pool = 0; 2181 qp->lock_conflict.mv_to_pvt_pool = 0; 2182 qp->lock_conflict.free_pvt_pool = 0; 2183 qp->lock_conflict.free_pub_pool = 0; 2184 qp->lock_conflict.wq_access = 0; 2185 } 2186 } 2187 return bsize; 2188 } 2189 #endif 2190 lpfc_debugfs_ras_log_data(struct lpfc_hba * phba,char * buffer,int size)2191 static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba, 2192 char *buffer, int size) 2193 { 2194 int copied = 0; 2195 struct lpfc_dmabuf *dmabuf, *next; 2196 2197 memset(buffer, 0, size); 2198 2199 spin_lock_irq(&phba->ras_fwlog_lock); 2200 if (phba->ras_fwlog.state != ACTIVE) { 2201 spin_unlock_irq(&phba->ras_fwlog_lock); 2202 return -EINVAL; 2203 } 2204 spin_unlock_irq(&phba->ras_fwlog_lock); 2205 2206 list_for_each_entry_safe(dmabuf, next, 2207 &phba->ras_fwlog.fwlog_buff_list, list) { 2208 /* Check if copying will go over size and a '\0' char */ 2209 if ((copied + LPFC_RAS_MAX_ENTRY_SIZE) >= (size - 1)) { 2210 memcpy(buffer + copied, dmabuf->virt, 2211 size - copied - 1); 2212 copied += size - copied - 1; 2213 break; 2214 } 2215 memcpy(buffer + copied, dmabuf->virt, LPFC_RAS_MAX_ENTRY_SIZE); 2216 copied += LPFC_RAS_MAX_ENTRY_SIZE; 2217 } 2218 return copied; 2219 } 2220 2221 static int lpfc_debugfs_ras_log_release(struct inode * inode,struct file * file)2222 lpfc_debugfs_ras_log_release(struct inode *inode, struct file *file) 2223 { 2224 struct lpfc_debug *debug = file->private_data; 2225 2226 vfree(debug->buffer); 2227 kfree(debug); 2228 2229 return 0; 2230 } 2231 2232 /** 2233 * lpfc_debugfs_ras_log_open - Open the RAS log debugfs buffer 2234 * @inode: The inode pointer that contains a vport pointer. 2235 * @file: The file pointer to attach the log output. 2236 * 2237 * Description: 2238 * This routine is the entry point for the debugfs open file operation. It gets 2239 * the vport from the i_private field in @inode, allocates the necessary buffer 2240 * for the log, fills the buffer from the in-memory log for this vport, and then 2241 * returns a pointer to that log in the private_data field in @file. 2242 * 2243 * Returns: 2244 * This function returns zero if successful. On error it will return a negative 2245 * error value. 2246 **/ 2247 static int lpfc_debugfs_ras_log_open(struct inode * inode,struct file * file)2248 lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file) 2249 { 2250 struct lpfc_hba *phba = inode->i_private; 2251 struct lpfc_debug *debug; 2252 int size; 2253 int rc = -ENOMEM; 2254 2255 spin_lock_irq(&phba->ras_fwlog_lock); 2256 if (phba->ras_fwlog.state != ACTIVE) { 2257 spin_unlock_irq(&phba->ras_fwlog_lock); 2258 rc = -EINVAL; 2259 goto out; 2260 } 2261 spin_unlock_irq(&phba->ras_fwlog_lock); 2262 2263 if (check_mul_overflow(LPFC_RAS_MIN_BUFF_POST_SIZE, 2264 phba->cfg_ras_fwlog_buffsize, &size)) 2265 goto out; 2266 2267 debug = kzalloc(sizeof(*debug), GFP_KERNEL); 2268 if (!debug) 2269 goto out; 2270 2271 debug->buffer = vmalloc(size); 2272 if (!debug->buffer) 2273 goto free_debug; 2274 2275 debug->len = lpfc_debugfs_ras_log_data(phba, debug->buffer, size); 2276 if (debug->len < 0) { 2277 rc = -EINVAL; 2278 goto free_buffer; 2279 } 2280 file->private_data = debug; 2281 2282 return 0; 2283 2284 free_buffer: 2285 vfree(debug->buffer); 2286 free_debug: 2287 kfree(debug); 2288 out: 2289 return rc; 2290 } 2291 2292 /** 2293 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer 2294 * @inode: The inode pointer that contains a vport pointer. 2295 * @file: The file pointer to attach the log output. 2296 * 2297 * Description: 2298 * This routine is the entry point for the debugfs open file operation. It gets 2299 * the vport from the i_private field in @inode, allocates the necessary buffer 2300 * for the log, fills the buffer from the in-memory log for this vport, and then 2301 * returns a pointer to that log in the private_data field in @file. 2302 * 2303 * Returns: 2304 * This function returns zero if successful. On error it will return a negative 2305 * error value. 2306 **/ 2307 static int lpfc_debugfs_dumpHBASlim_open(struct inode * inode,struct file * file)2308 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 2309 { 2310 struct lpfc_hba *phba = inode->i_private; 2311 struct lpfc_debug *debug; 2312 int rc = -ENOMEM; 2313 2314 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2315 if (!debug) 2316 goto out; 2317 2318 /* Round to page boundary */ 2319 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 2320 if (!debug->buffer) { 2321 kfree(debug); 2322 goto out; 2323 } 2324 2325 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, 2326 LPFC_DUMPHBASLIM_SIZE); 2327 file->private_data = debug; 2328 2329 rc = 0; 2330 out: 2331 return rc; 2332 } 2333 2334 /** 2335 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer 2336 * @inode: The inode pointer that contains a vport pointer. 2337 * @file: The file pointer to attach the log output. 2338 * 2339 * Description: 2340 * This routine is the entry point for the debugfs open file operation. It gets 2341 * the vport from the i_private field in @inode, allocates the necessary buffer 2342 * for the log, fills the buffer from the in-memory log for this vport, and then 2343 * returns a pointer to that log in the private_data field in @file. 2344 * 2345 * Returns: 2346 * This function returns zero if successful. On error it will return a negative 2347 * error value. 2348 **/ 2349 static int lpfc_debugfs_dumpHostSlim_open(struct inode * inode,struct file * file)2350 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 2351 { 2352 struct lpfc_hba *phba = inode->i_private; 2353 struct lpfc_debug *debug; 2354 int rc = -ENOMEM; 2355 2356 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2357 if (!debug) 2358 goto out; 2359 2360 /* Round to page boundary */ 2361 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 2362 if (!debug->buffer) { 2363 kfree(debug); 2364 goto out; 2365 } 2366 2367 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, 2368 LPFC_DUMPHOSTSLIM_SIZE); 2369 file->private_data = debug; 2370 2371 rc = 0; 2372 out: 2373 return rc; 2374 } 2375 2376 static ssize_t lpfc_debugfs_dif_err_read(struct file * file,char __user * buf,size_t nbytes,loff_t * ppos)2377 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, 2378 size_t nbytes, loff_t *ppos) 2379 { 2380 struct dentry *dent = file->f_path.dentry; 2381 struct lpfc_hba *phba = file->private_data; 2382 char cbuf[32]; 2383 uint64_t tmp = 0; 2384 int cnt = 0; 2385 2386 if (dent == phba->debug_writeGuard) 2387 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); 2388 else if (dent == phba->debug_writeApp) 2389 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); 2390 else if (dent == phba->debug_writeRef) 2391 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); 2392 else if (dent == phba->debug_readGuard) 2393 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); 2394 else if (dent == phba->debug_readApp) 2395 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); 2396 else if (dent == phba->debug_readRef) 2397 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); 2398 else if (dent == phba->debug_InjErrNPortID) 2399 cnt = scnprintf(cbuf, 32, "0x%06x\n", 2400 phba->lpfc_injerr_nportid); 2401 else if (dent == phba->debug_InjErrWWPN) { 2402 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); 2403 tmp = cpu_to_be64(tmp); 2404 cnt = scnprintf(cbuf, 32, "0x%016llx\n", tmp); 2405 } else if (dent == phba->debug_InjErrLBA) { 2406 if (phba->lpfc_injerr_lba == (sector_t)(-1)) 2407 cnt = scnprintf(cbuf, 32, "off\n"); 2408 else 2409 cnt = scnprintf(cbuf, 32, "0x%llx\n", 2410 (uint64_t) phba->lpfc_injerr_lba); 2411 } else 2412 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2413 "0547 Unknown debugfs error injection entry\n"); 2414 2415 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); 2416 } 2417 2418 static ssize_t lpfc_debugfs_dif_err_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)2419 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, 2420 size_t nbytes, loff_t *ppos) 2421 { 2422 struct dentry *dent = file->f_path.dentry; 2423 struct lpfc_hba *phba = file->private_data; 2424 char dstbuf[33]; 2425 uint64_t tmp = 0; 2426 int size; 2427 2428 memset(dstbuf, 0, 33); 2429 size = (nbytes < 32) ? nbytes : 32; 2430 if (copy_from_user(dstbuf, buf, size)) 2431 return -EFAULT; 2432 2433 if (dent == phba->debug_InjErrLBA) { 2434 if ((dstbuf[0] == 'o') && (dstbuf[1] == 'f') && 2435 (dstbuf[2] == 'f')) 2436 tmp = (uint64_t)(-1); 2437 } 2438 2439 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) 2440 return -EINVAL; 2441 2442 if (dent == phba->debug_writeGuard) 2443 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; 2444 else if (dent == phba->debug_writeApp) 2445 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; 2446 else if (dent == phba->debug_writeRef) 2447 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; 2448 else if (dent == phba->debug_readGuard) 2449 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; 2450 else if (dent == phba->debug_readApp) 2451 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; 2452 else if (dent == phba->debug_readRef) 2453 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; 2454 else if (dent == phba->debug_InjErrLBA) 2455 phba->lpfc_injerr_lba = (sector_t)tmp; 2456 else if (dent == phba->debug_InjErrNPortID) 2457 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); 2458 else if (dent == phba->debug_InjErrWWPN) { 2459 tmp = cpu_to_be64(tmp); 2460 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); 2461 } else 2462 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2463 "0548 Unknown debugfs error injection entry\n"); 2464 2465 return nbytes; 2466 } 2467 2468 static int lpfc_debugfs_dif_err_release(struct inode * inode,struct file * file)2469 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) 2470 { 2471 return 0; 2472 } 2473 2474 /** 2475 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file 2476 * @inode: The inode pointer that contains a vport pointer. 2477 * @file: The file pointer to attach the log output. 2478 * 2479 * Description: 2480 * This routine is the entry point for the debugfs open file operation. It gets 2481 * the vport from the i_private field in @inode, allocates the necessary buffer 2482 * for the log, fills the buffer from the in-memory log for this vport, and then 2483 * returns a pointer to that log in the private_data field in @file. 2484 * 2485 * Returns: 2486 * This function returns zero if successful. On error it will return a negative 2487 * error value. 2488 **/ 2489 static int lpfc_debugfs_nodelist_open(struct inode * inode,struct file * file)2490 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 2491 { 2492 struct lpfc_vport *vport = inode->i_private; 2493 struct lpfc_debug *debug; 2494 int rc = -ENOMEM; 2495 2496 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2497 if (!debug) 2498 goto out; 2499 2500 /* Round to page boundary */ 2501 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 2502 if (!debug->buffer) { 2503 kfree(debug); 2504 goto out; 2505 } 2506 2507 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, 2508 LPFC_NODELIST_SIZE); 2509 file->private_data = debug; 2510 2511 rc = 0; 2512 out: 2513 return rc; 2514 } 2515 2516 /** 2517 * lpfc_debugfs_lseek - Seek through a debugfs file 2518 * @file: The file pointer to seek through. 2519 * @off: The offset to seek to or the amount to seek by. 2520 * @whence: Indicates how to seek. 2521 * 2522 * Description: 2523 * This routine is the entry point for the debugfs lseek file operation. The 2524 * @whence parameter indicates whether @off is the offset to directly seek to, 2525 * or if it is a value to seek forward or reverse by. This function figures out 2526 * what the new offset of the debugfs file will be and assigns that value to the 2527 * f_pos field of @file. 2528 * 2529 * Returns: 2530 * This function returns the new offset if successful and returns a negative 2531 * error if unable to process the seek. 2532 **/ 2533 static loff_t lpfc_debugfs_lseek(struct file * file,loff_t off,int whence)2534 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 2535 { 2536 struct lpfc_debug *debug = file->private_data; 2537 return fixed_size_llseek(file, off, whence, debug->len); 2538 } 2539 2540 /** 2541 * lpfc_debugfs_read - Read a debugfs file 2542 * @file: The file pointer to read from. 2543 * @buf: The buffer to copy the data to. 2544 * @nbytes: The number of bytes to read. 2545 * @ppos: The position in the file to start reading from. 2546 * 2547 * Description: 2548 * This routine reads data from from the buffer indicated in the private_data 2549 * field of @file. It will start reading at @ppos and copy up to @nbytes of 2550 * data to @buf. 2551 * 2552 * Returns: 2553 * This function returns the amount of data that was read (this could be less 2554 * than @nbytes if the end of the file was reached) or a negative error value. 2555 **/ 2556 static ssize_t lpfc_debugfs_read(struct file * file,char __user * buf,size_t nbytes,loff_t * ppos)2557 lpfc_debugfs_read(struct file *file, char __user *buf, 2558 size_t nbytes, loff_t *ppos) 2559 { 2560 struct lpfc_debug *debug = file->private_data; 2561 2562 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, 2563 debug->len); 2564 } 2565 2566 /** 2567 * lpfc_debugfs_release - Release the buffer used to store debugfs file data 2568 * @inode: The inode pointer that contains a vport pointer. (unused) 2569 * @file: The file pointer that contains the buffer to release. 2570 * 2571 * Description: 2572 * This routine frees the buffer that was allocated when the debugfs file was 2573 * opened. 2574 * 2575 * Returns: 2576 * This function returns zero. 2577 **/ 2578 static int lpfc_debugfs_release(struct inode * inode,struct file * file)2579 lpfc_debugfs_release(struct inode *inode, struct file *file) 2580 { 2581 struct lpfc_debug *debug = file->private_data; 2582 2583 kfree(debug->buffer); 2584 kfree(debug); 2585 2586 return 0; 2587 } 2588 2589 /** 2590 * lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics 2591 * @file: The file pointer to read from. 2592 * @buf: The buffer to copy the user data from. 2593 * @nbytes: The number of bytes to get. 2594 * @ppos: The position in the file to start reading from. 2595 * 2596 * Description: 2597 * This routine clears multi-XRI pools statistics when buf contains "clear". 2598 * 2599 * Return Value: 2600 * It returns the @nbytges passing in from debugfs user space when successful. 2601 * In case of error conditions, it returns proper error code back to the user 2602 * space. 2603 **/ 2604 static ssize_t lpfc_debugfs_multixripools_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)2605 lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf, 2606 size_t nbytes, loff_t *ppos) 2607 { 2608 struct lpfc_debug *debug = file->private_data; 2609 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2610 char mybuf[64]; 2611 char *pbuf; 2612 u32 i; 2613 u32 hwq_count; 2614 struct lpfc_sli4_hdw_queue *qp; 2615 struct lpfc_multixri_pool *multixri_pool; 2616 2617 if (nbytes > sizeof(mybuf) - 1) 2618 nbytes = sizeof(mybuf) - 1; 2619 2620 memset(mybuf, 0, sizeof(mybuf)); 2621 2622 if (copy_from_user(mybuf, buf, nbytes)) 2623 return -EFAULT; 2624 pbuf = &mybuf[0]; 2625 2626 if ((strncmp(pbuf, "clear", strlen("clear"))) == 0) { 2627 hwq_count = phba->cfg_hdw_queue; 2628 for (i = 0; i < hwq_count; i++) { 2629 qp = &phba->sli4_hba.hdwq[i]; 2630 multixri_pool = qp->p_multixri_pool; 2631 if (!multixri_pool) 2632 continue; 2633 2634 qp->empty_io_bufs = 0; 2635 multixri_pool->pbl_empty_count = 0; 2636 #ifdef LPFC_MXP_STAT 2637 multixri_pool->above_limit_count = 0; 2638 multixri_pool->below_limit_count = 0; 2639 multixri_pool->stat_max_hwm = 0; 2640 multixri_pool->local_pbl_hit_count = 0; 2641 multixri_pool->other_pbl_hit_count = 0; 2642 2643 multixri_pool->stat_pbl_count = 0; 2644 multixri_pool->stat_pvt_count = 0; 2645 multixri_pool->stat_busy_count = 0; 2646 multixri_pool->stat_snapshot_taken = 0; 2647 #endif 2648 } 2649 return strlen(pbuf); 2650 } 2651 2652 return -EINVAL; 2653 } 2654 2655 static int lpfc_debugfs_nvmestat_open(struct inode * inode,struct file * file)2656 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) 2657 { 2658 struct lpfc_vport *vport = inode->i_private; 2659 struct lpfc_debug *debug; 2660 int rc = -ENOMEM; 2661 2662 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2663 if (!debug) 2664 goto out; 2665 2666 /* Round to page boundary */ 2667 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); 2668 if (!debug->buffer) { 2669 kfree(debug); 2670 goto out; 2671 } 2672 2673 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, 2674 LPFC_NVMESTAT_SIZE); 2675 2676 debug->i_private = inode->i_private; 2677 file->private_data = debug; 2678 2679 rc = 0; 2680 out: 2681 return rc; 2682 } 2683 2684 static ssize_t lpfc_debugfs_nvmestat_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)2685 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, 2686 size_t nbytes, loff_t *ppos) 2687 { 2688 struct lpfc_debug *debug = file->private_data; 2689 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2690 struct lpfc_hba *phba = vport->phba; 2691 struct lpfc_nvmet_tgtport *tgtp; 2692 char mybuf[64]; 2693 char *pbuf; 2694 2695 if (!phba->targetport) 2696 return -ENXIO; 2697 2698 if (nbytes > sizeof(mybuf) - 1) 2699 nbytes = sizeof(mybuf) - 1; 2700 2701 memset(mybuf, 0, sizeof(mybuf)); 2702 2703 if (copy_from_user(mybuf, buf, nbytes)) 2704 return -EFAULT; 2705 pbuf = &mybuf[0]; 2706 2707 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 2708 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) || 2709 (strncmp(pbuf, "zero", strlen("zero")) == 0)) { 2710 atomic_set(&tgtp->rcv_ls_req_in, 0); 2711 atomic_set(&tgtp->rcv_ls_req_out, 0); 2712 atomic_set(&tgtp->rcv_ls_req_drop, 0); 2713 atomic_set(&tgtp->xmt_ls_abort, 0); 2714 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0); 2715 atomic_set(&tgtp->xmt_ls_rsp, 0); 2716 atomic_set(&tgtp->xmt_ls_drop, 0); 2717 atomic_set(&tgtp->xmt_ls_rsp_error, 0); 2718 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0); 2719 2720 atomic_set(&tgtp->rcv_fcp_cmd_in, 0); 2721 atomic_set(&tgtp->rcv_fcp_cmd_out, 0); 2722 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0); 2723 atomic_set(&tgtp->xmt_fcp_drop, 0); 2724 atomic_set(&tgtp->xmt_fcp_read_rsp, 0); 2725 atomic_set(&tgtp->xmt_fcp_read, 0); 2726 atomic_set(&tgtp->xmt_fcp_write, 0); 2727 atomic_set(&tgtp->xmt_fcp_rsp, 0); 2728 atomic_set(&tgtp->xmt_fcp_release, 0); 2729 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0); 2730 atomic_set(&tgtp->xmt_fcp_rsp_error, 0); 2731 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0); 2732 2733 atomic_set(&tgtp->xmt_fcp_abort, 0); 2734 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0); 2735 atomic_set(&tgtp->xmt_abort_sol, 0); 2736 atomic_set(&tgtp->xmt_abort_unsol, 0); 2737 atomic_set(&tgtp->xmt_abort_rsp, 0); 2738 atomic_set(&tgtp->xmt_abort_rsp_error, 0); 2739 } 2740 return nbytes; 2741 } 2742 2743 static int lpfc_debugfs_scsistat_open(struct inode * inode,struct file * file)2744 lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file) 2745 { 2746 struct lpfc_vport *vport = inode->i_private; 2747 struct lpfc_debug *debug; 2748 int rc = -ENOMEM; 2749 2750 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2751 if (!debug) 2752 goto out; 2753 2754 /* Round to page boundary */ 2755 debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL); 2756 if (!debug->buffer) { 2757 kfree(debug); 2758 goto out; 2759 } 2760 2761 debug->len = lpfc_debugfs_scsistat_data(vport, debug->buffer, 2762 LPFC_SCSISTAT_SIZE); 2763 2764 debug->i_private = inode->i_private; 2765 file->private_data = debug; 2766 2767 rc = 0; 2768 out: 2769 return rc; 2770 } 2771 2772 static ssize_t lpfc_debugfs_scsistat_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)2773 lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf, 2774 size_t nbytes, loff_t *ppos) 2775 { 2776 struct lpfc_debug *debug = file->private_data; 2777 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2778 struct lpfc_hba *phba = vport->phba; 2779 char mybuf[6] = {0}; 2780 int i; 2781 2782 if (copy_from_user(mybuf, buf, (nbytes >= sizeof(mybuf)) ? 2783 (sizeof(mybuf) - 1) : nbytes)) 2784 return -EFAULT; 2785 2786 if ((strncmp(&mybuf[0], "reset", strlen("reset")) == 0) || 2787 (strncmp(&mybuf[0], "zero", strlen("zero")) == 0)) { 2788 for (i = 0; i < phba->cfg_hdw_queue; i++) { 2789 memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0, 2790 sizeof(phba->sli4_hba.hdwq[i].scsi_cstat)); 2791 } 2792 } 2793 2794 return nbytes; 2795 } 2796 2797 static int lpfc_debugfs_ioktime_open(struct inode * inode,struct file * file)2798 lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file) 2799 { 2800 struct lpfc_vport *vport = inode->i_private; 2801 struct lpfc_debug *debug; 2802 int rc = -ENOMEM; 2803 2804 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2805 if (!debug) 2806 goto out; 2807 2808 /* Round to page boundary */ 2809 debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL); 2810 if (!debug->buffer) { 2811 kfree(debug); 2812 goto out; 2813 } 2814 2815 debug->len = lpfc_debugfs_ioktime_data(vport, debug->buffer, 2816 LPFC_IOKTIME_SIZE); 2817 2818 debug->i_private = inode->i_private; 2819 file->private_data = debug; 2820 2821 rc = 0; 2822 out: 2823 return rc; 2824 } 2825 2826 static ssize_t lpfc_debugfs_ioktime_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)2827 lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf, 2828 size_t nbytes, loff_t *ppos) 2829 { 2830 struct lpfc_debug *debug = file->private_data; 2831 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 2832 struct lpfc_hba *phba = vport->phba; 2833 char mybuf[64]; 2834 char *pbuf; 2835 2836 if (nbytes > sizeof(mybuf) - 1) 2837 nbytes = sizeof(mybuf) - 1; 2838 2839 memset(mybuf, 0, sizeof(mybuf)); 2840 2841 if (copy_from_user(mybuf, buf, nbytes)) 2842 return -EFAULT; 2843 pbuf = &mybuf[0]; 2844 2845 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2846 phba->ktime_data_samples = 0; 2847 phba->ktime_status_samples = 0; 2848 phba->ktime_seg1_total = 0; 2849 phba->ktime_seg1_max = 0; 2850 phba->ktime_seg1_min = 0xffffffff; 2851 phba->ktime_seg2_total = 0; 2852 phba->ktime_seg2_max = 0; 2853 phba->ktime_seg2_min = 0xffffffff; 2854 phba->ktime_seg3_total = 0; 2855 phba->ktime_seg3_max = 0; 2856 phba->ktime_seg3_min = 0xffffffff; 2857 phba->ktime_seg4_total = 0; 2858 phba->ktime_seg4_max = 0; 2859 phba->ktime_seg4_min = 0xffffffff; 2860 phba->ktime_seg5_total = 0; 2861 phba->ktime_seg5_max = 0; 2862 phba->ktime_seg5_min = 0xffffffff; 2863 phba->ktime_seg6_total = 0; 2864 phba->ktime_seg6_max = 0; 2865 phba->ktime_seg6_min = 0xffffffff; 2866 phba->ktime_seg7_total = 0; 2867 phba->ktime_seg7_max = 0; 2868 phba->ktime_seg7_min = 0xffffffff; 2869 phba->ktime_seg8_total = 0; 2870 phba->ktime_seg8_max = 0; 2871 phba->ktime_seg8_min = 0xffffffff; 2872 phba->ktime_seg9_total = 0; 2873 phba->ktime_seg9_max = 0; 2874 phba->ktime_seg9_min = 0xffffffff; 2875 phba->ktime_seg10_total = 0; 2876 phba->ktime_seg10_max = 0; 2877 phba->ktime_seg10_min = 0xffffffff; 2878 2879 phba->ktime_on = 1; 2880 return strlen(pbuf); 2881 } else if ((strncmp(pbuf, "off", 2882 sizeof("off") - 1) == 0)) { 2883 phba->ktime_on = 0; 2884 return strlen(pbuf); 2885 } else if ((strncmp(pbuf, "zero", 2886 sizeof("zero") - 1) == 0)) { 2887 phba->ktime_data_samples = 0; 2888 phba->ktime_status_samples = 0; 2889 phba->ktime_seg1_total = 0; 2890 phba->ktime_seg1_max = 0; 2891 phba->ktime_seg1_min = 0xffffffff; 2892 phba->ktime_seg2_total = 0; 2893 phba->ktime_seg2_max = 0; 2894 phba->ktime_seg2_min = 0xffffffff; 2895 phba->ktime_seg3_total = 0; 2896 phba->ktime_seg3_max = 0; 2897 phba->ktime_seg3_min = 0xffffffff; 2898 phba->ktime_seg4_total = 0; 2899 phba->ktime_seg4_max = 0; 2900 phba->ktime_seg4_min = 0xffffffff; 2901 phba->ktime_seg5_total = 0; 2902 phba->ktime_seg5_max = 0; 2903 phba->ktime_seg5_min = 0xffffffff; 2904 phba->ktime_seg6_total = 0; 2905 phba->ktime_seg6_max = 0; 2906 phba->ktime_seg6_min = 0xffffffff; 2907 phba->ktime_seg7_total = 0; 2908 phba->ktime_seg7_max = 0; 2909 phba->ktime_seg7_min = 0xffffffff; 2910 phba->ktime_seg8_total = 0; 2911 phba->ktime_seg8_max = 0; 2912 phba->ktime_seg8_min = 0xffffffff; 2913 phba->ktime_seg9_total = 0; 2914 phba->ktime_seg9_max = 0; 2915 phba->ktime_seg9_min = 0xffffffff; 2916 phba->ktime_seg10_total = 0; 2917 phba->ktime_seg10_max = 0; 2918 phba->ktime_seg10_min = 0xffffffff; 2919 return strlen(pbuf); 2920 } 2921 return -EINVAL; 2922 } 2923 2924 static int lpfc_debugfs_nvmeio_trc_open(struct inode * inode,struct file * file)2925 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) 2926 { 2927 struct lpfc_hba *phba = inode->i_private; 2928 struct lpfc_debug *debug; 2929 int rc = -ENOMEM; 2930 2931 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 2932 if (!debug) 2933 goto out; 2934 2935 /* Round to page boundary */ 2936 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); 2937 if (!debug->buffer) { 2938 kfree(debug); 2939 goto out; 2940 } 2941 2942 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, 2943 LPFC_NVMEIO_TRC_SIZE); 2944 2945 debug->i_private = inode->i_private; 2946 file->private_data = debug; 2947 2948 rc = 0; 2949 out: 2950 return rc; 2951 } 2952 2953 static ssize_t lpfc_debugfs_nvmeio_trc_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)2954 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, 2955 size_t nbytes, loff_t *ppos) 2956 { 2957 struct lpfc_debug *debug = file->private_data; 2958 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 2959 int i; 2960 unsigned long sz; 2961 char mybuf[64]; 2962 char *pbuf; 2963 2964 if (nbytes > sizeof(mybuf) - 1) 2965 nbytes = sizeof(mybuf) - 1; 2966 2967 memset(mybuf, 0, sizeof(mybuf)); 2968 2969 if (copy_from_user(mybuf, buf, nbytes)) 2970 return -EFAULT; 2971 pbuf = &mybuf[0]; 2972 2973 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { 2974 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2975 "0570 nvmeio_trc_off\n"); 2976 phba->nvmeio_trc_output_idx = 0; 2977 phba->nvmeio_trc_on = 0; 2978 return strlen(pbuf); 2979 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 2980 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2981 "0571 nvmeio_trc_on\n"); 2982 phba->nvmeio_trc_output_idx = 0; 2983 phba->nvmeio_trc_on = 1; 2984 return strlen(pbuf); 2985 } 2986 2987 /* We must be off to allocate the trace buffer */ 2988 if (phba->nvmeio_trc_on != 0) 2989 return -EINVAL; 2990 2991 /* If not on or off, the parameter is the trace buffer size */ 2992 i = kstrtoul(pbuf, 0, &sz); 2993 if (i) 2994 return -EINVAL; 2995 phba->nvmeio_trc_size = (uint32_t)sz; 2996 2997 /* It must be a power of 2 - round down */ 2998 i = 0; 2999 while (sz > 1) { 3000 sz = sz >> 1; 3001 i++; 3002 } 3003 sz = (1 << i); 3004 if (phba->nvmeio_trc_size != sz) 3005 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3006 "0572 nvmeio_trc_size changed to %ld\n", 3007 sz); 3008 phba->nvmeio_trc_size = (uint32_t)sz; 3009 3010 /* If one previously exists, free it */ 3011 kfree(phba->nvmeio_trc); 3012 3013 /* Allocate new trace buffer and initialize */ 3014 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * 3015 sz), GFP_KERNEL); 3016 if (!phba->nvmeio_trc) { 3017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3018 "0573 Cannot create debugfs " 3019 "nvmeio_trc buffer\n"); 3020 return -ENOMEM; 3021 } 3022 atomic_set(&phba->nvmeio_trc_cnt, 0); 3023 phba->nvmeio_trc_on = 0; 3024 phba->nvmeio_trc_output_idx = 0; 3025 3026 return strlen(pbuf); 3027 } 3028 3029 static int lpfc_debugfs_hdwqstat_open(struct inode * inode,struct file * file)3030 lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file) 3031 { 3032 struct lpfc_vport *vport = inode->i_private; 3033 struct lpfc_debug *debug; 3034 int rc = -ENOMEM; 3035 3036 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3037 if (!debug) 3038 goto out; 3039 3040 /* Round to page boundary */ 3041 debug->buffer = kcalloc(1, LPFC_SCSISTAT_SIZE, GFP_KERNEL); 3042 if (!debug->buffer) { 3043 kfree(debug); 3044 goto out; 3045 } 3046 3047 debug->len = lpfc_debugfs_hdwqstat_data(vport, debug->buffer, 3048 LPFC_SCSISTAT_SIZE); 3049 3050 debug->i_private = inode->i_private; 3051 file->private_data = debug; 3052 3053 rc = 0; 3054 out: 3055 return rc; 3056 } 3057 3058 static ssize_t lpfc_debugfs_hdwqstat_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)3059 lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf, 3060 size_t nbytes, loff_t *ppos) 3061 { 3062 struct lpfc_debug *debug = file->private_data; 3063 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; 3064 struct lpfc_hba *phba = vport->phba; 3065 struct lpfc_hdwq_stat *c_stat; 3066 char mybuf[64]; 3067 char *pbuf; 3068 int i; 3069 3070 if (nbytes > sizeof(mybuf) - 1) 3071 nbytes = sizeof(mybuf) - 1; 3072 3073 memset(mybuf, 0, sizeof(mybuf)); 3074 3075 if (copy_from_user(mybuf, buf, nbytes)) 3076 return -EFAULT; 3077 pbuf = &mybuf[0]; 3078 3079 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { 3080 if (phba->nvmet_support) 3081 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3082 else 3083 phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO | 3084 LPFC_CHECK_SCSI_IO); 3085 return strlen(pbuf); 3086 } else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) { 3087 if (phba->nvmet_support) 3088 phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; 3089 else 3090 phba->hdwqstat_on |= LPFC_CHECK_NVME_IO; 3091 return strlen(pbuf); 3092 } else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) { 3093 if (!phba->nvmet_support) 3094 phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO; 3095 return strlen(pbuf); 3096 } else if ((strncmp(pbuf, "nvme_off", sizeof("nvme_off") - 1) == 0)) { 3097 phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO | 3098 LPFC_CHECK_NVMET_IO); 3099 return strlen(pbuf); 3100 } else if ((strncmp(pbuf, "scsi_off", sizeof("scsi_off") - 1) == 0)) { 3101 phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO; 3102 return strlen(pbuf); 3103 } else if ((strncmp(pbuf, "off", 3104 sizeof("off") - 1) == 0)) { 3105 phba->hdwqstat_on = LPFC_CHECK_OFF; 3106 return strlen(pbuf); 3107 } else if ((strncmp(pbuf, "zero", 3108 sizeof("zero") - 1) == 0)) { 3109 for_each_present_cpu(i) { 3110 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i); 3111 c_stat->xmt_io = 0; 3112 c_stat->cmpl_io = 0; 3113 c_stat->rcv_io = 0; 3114 } 3115 return strlen(pbuf); 3116 } 3117 return -EINVAL; 3118 } 3119 3120 /* 3121 * --------------------------------- 3122 * iDiag debugfs file access methods 3123 * --------------------------------- 3124 * 3125 * All access methods are through the proper SLI4 PCI function's debugfs 3126 * iDiag directory: 3127 * 3128 * /sys/kernel/debug/lpfc/fn<#>/iDiag 3129 */ 3130 3131 /** 3132 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space 3133 * @buf: The pointer to the user space buffer. 3134 * @nbytes: The number of bytes in the user space buffer. 3135 * @idiag_cmd: pointer to the idiag command struct. 3136 * 3137 * This routine reads data from debugfs user space buffer and parses the 3138 * buffer for getting the idiag command and arguments. The while space in 3139 * between the set of data is used as the parsing separator. 3140 * 3141 * This routine returns 0 when successful, it returns proper error code 3142 * back to the user space in error conditions. 3143 */ lpfc_idiag_cmd_get(const char __user * buf,size_t nbytes,struct lpfc_idiag_cmd * idiag_cmd)3144 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, 3145 struct lpfc_idiag_cmd *idiag_cmd) 3146 { 3147 char mybuf[64]; 3148 char *pbuf, *step_str; 3149 int i; 3150 size_t bsize; 3151 3152 memset(mybuf, 0, sizeof(mybuf)); 3153 memset(idiag_cmd, 0, sizeof(*idiag_cmd)); 3154 bsize = min(nbytes, (sizeof(mybuf)-1)); 3155 3156 if (copy_from_user(mybuf, buf, bsize)) 3157 return -EFAULT; 3158 pbuf = &mybuf[0]; 3159 step_str = strsep(&pbuf, "\t "); 3160 3161 /* The opcode must present */ 3162 if (!step_str) 3163 return -EINVAL; 3164 3165 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); 3166 if (idiag_cmd->opcode == 0) 3167 return -EINVAL; 3168 3169 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { 3170 step_str = strsep(&pbuf, "\t "); 3171 if (!step_str) 3172 return i; 3173 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); 3174 } 3175 return i; 3176 } 3177 3178 /** 3179 * lpfc_idiag_open - idiag open debugfs 3180 * @inode: The inode pointer that contains a pointer to phba. 3181 * @file: The file pointer to attach the file operation. 3182 * 3183 * Description: 3184 * This routine is the entry point for the debugfs open file operation. It 3185 * gets the reference to phba from the i_private field in @inode, it then 3186 * allocates buffer for the file operation, performs the necessary PCI config 3187 * space read into the allocated buffer according to the idiag user command 3188 * setup, and then returns a pointer to buffer in the private_data field in 3189 * @file. 3190 * 3191 * Returns: 3192 * This function returns zero if successful. On error it will return an 3193 * negative error value. 3194 **/ 3195 static int lpfc_idiag_open(struct inode * inode,struct file * file)3196 lpfc_idiag_open(struct inode *inode, struct file *file) 3197 { 3198 struct lpfc_debug *debug; 3199 3200 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 3201 if (!debug) 3202 return -ENOMEM; 3203 3204 debug->i_private = inode->i_private; 3205 debug->buffer = NULL; 3206 file->private_data = debug; 3207 3208 return 0; 3209 } 3210 3211 /** 3212 * lpfc_idiag_release - Release idiag access file operation 3213 * @inode: The inode pointer that contains a vport pointer. (unused) 3214 * @file: The file pointer that contains the buffer to release. 3215 * 3216 * Description: 3217 * This routine is the generic release routine for the idiag access file 3218 * operation, it frees the buffer that was allocated when the debugfs file 3219 * was opened. 3220 * 3221 * Returns: 3222 * This function returns zero. 3223 **/ 3224 static int lpfc_idiag_release(struct inode * inode,struct file * file)3225 lpfc_idiag_release(struct inode *inode, struct file *file) 3226 { 3227 struct lpfc_debug *debug = file->private_data; 3228 3229 /* Free the buffers to the file operation */ 3230 kfree(debug->buffer); 3231 kfree(debug); 3232 3233 return 0; 3234 } 3235 3236 /** 3237 * lpfc_idiag_cmd_release - Release idiag cmd access file operation 3238 * @inode: The inode pointer that contains a vport pointer. (unused) 3239 * @file: The file pointer that contains the buffer to release. 3240 * 3241 * Description: 3242 * This routine frees the buffer that was allocated when the debugfs file 3243 * was opened. It also reset the fields in the idiag command struct in the 3244 * case of command for write operation. 3245 * 3246 * Returns: 3247 * This function returns zero. 3248 **/ 3249 static int lpfc_idiag_cmd_release(struct inode * inode,struct file * file)3250 lpfc_idiag_cmd_release(struct inode *inode, struct file *file) 3251 { 3252 struct lpfc_debug *debug = file->private_data; 3253 3254 if (debug->op == LPFC_IDIAG_OP_WR) { 3255 switch (idiag.cmd.opcode) { 3256 case LPFC_IDIAG_CMD_PCICFG_WR: 3257 case LPFC_IDIAG_CMD_PCICFG_ST: 3258 case LPFC_IDIAG_CMD_PCICFG_CL: 3259 case LPFC_IDIAG_CMD_QUEACC_WR: 3260 case LPFC_IDIAG_CMD_QUEACC_ST: 3261 case LPFC_IDIAG_CMD_QUEACC_CL: 3262 memset(&idiag, 0, sizeof(idiag)); 3263 break; 3264 default: 3265 break; 3266 } 3267 } 3268 3269 /* Free the buffers to the file operation */ 3270 kfree(debug->buffer); 3271 kfree(debug); 3272 3273 return 0; 3274 } 3275 3276 /** 3277 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg 3278 * @file: The file pointer to read from. 3279 * @buf: The buffer to copy the data to. 3280 * @nbytes: The number of bytes to read. 3281 * @ppos: The position in the file to start reading from. 3282 * 3283 * Description: 3284 * This routine reads data from the @phba pci config space according to the 3285 * idiag command, and copies to user @buf. Depending on the PCI config space 3286 * read command setup, it does either a single register read of a byte 3287 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all 3288 * registers from the 4K extended PCI config space. 3289 * 3290 * Returns: 3291 * This function returns the amount of data that was read (this could be less 3292 * than @nbytes if the end of the file was reached) or a negative error value. 3293 **/ 3294 static ssize_t lpfc_idiag_pcicfg_read(struct file * file,char __user * buf,size_t nbytes,loff_t * ppos)3295 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, 3296 loff_t *ppos) 3297 { 3298 struct lpfc_debug *debug = file->private_data; 3299 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3300 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; 3301 int where, count; 3302 char *pbuffer; 3303 struct pci_dev *pdev; 3304 uint32_t u32val; 3305 uint16_t u16val; 3306 uint8_t u8val; 3307 3308 pdev = phba->pcidev; 3309 if (!pdev) 3310 return 0; 3311 3312 /* This is a user read operation */ 3313 debug->op = LPFC_IDIAG_OP_RD; 3314 3315 if (!debug->buffer) 3316 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); 3317 if (!debug->buffer) 3318 return 0; 3319 pbuffer = debug->buffer; 3320 3321 if (*ppos) 3322 return 0; 3323 3324 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3325 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3326 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3327 } else 3328 return 0; 3329 3330 /* Read single PCI config space register */ 3331 switch (count) { 3332 case SIZE_U8: /* byte (8 bits) */ 3333 pci_read_config_byte(pdev, where, &u8val); 3334 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3335 "%03x: %02x\n", where, u8val); 3336 break; 3337 case SIZE_U16: /* word (16 bits) */ 3338 pci_read_config_word(pdev, where, &u16val); 3339 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3340 "%03x: %04x\n", where, u16val); 3341 break; 3342 case SIZE_U32: /* double word (32 bits) */ 3343 pci_read_config_dword(pdev, where, &u32val); 3344 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3345 "%03x: %08x\n", where, u32val); 3346 break; 3347 case LPFC_PCI_CFG_BROWSE: /* browse all */ 3348 goto pcicfg_browse; 3349 default: 3350 /* illegal count */ 3351 len = 0; 3352 break; 3353 } 3354 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3355 3356 pcicfg_browse: 3357 3358 /* Browse all PCI config space registers */ 3359 offset_label = idiag.offset.last_rd; 3360 offset = offset_label; 3361 3362 /* Read PCI config space */ 3363 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3364 "%03x: ", offset_label); 3365 while (index > 0) { 3366 pci_read_config_dword(pdev, offset, &u32val); 3367 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3368 "%08x ", u32val); 3369 offset += sizeof(uint32_t); 3370 if (offset >= LPFC_PCI_CFG_SIZE) { 3371 len += scnprintf(pbuffer+len, 3372 LPFC_PCI_CFG_SIZE-len, "\n"); 3373 break; 3374 } 3375 index -= sizeof(uint32_t); 3376 if (!index) 3377 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3378 "\n"); 3379 else if (!(index % (8 * sizeof(uint32_t)))) { 3380 offset_label += (8 * sizeof(uint32_t)); 3381 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, 3382 "\n%03x: ", offset_label); 3383 } 3384 } 3385 3386 /* Set up the offset for next portion of pci cfg read */ 3387 if (index == 0) { 3388 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; 3389 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) 3390 idiag.offset.last_rd = 0; 3391 } else 3392 idiag.offset.last_rd = 0; 3393 3394 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3395 } 3396 3397 /** 3398 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands 3399 * @file: The file pointer to read from. 3400 * @buf: The buffer to copy the user data from. 3401 * @nbytes: The number of bytes to get. 3402 * @ppos: The position in the file to start reading from. 3403 * 3404 * This routine get the debugfs idiag command struct from user space and 3405 * then perform the syntax check for PCI config space read or write command 3406 * accordingly. In the case of PCI config space read command, it sets up 3407 * the command in the idiag command struct for the debugfs read operation. 3408 * In the case of PCI config space write operation, it executes the write 3409 * operation into the PCI config space accordingly. 3410 * 3411 * It returns the @nbytges passing in from debugfs user space when successful. 3412 * In case of error conditions, it returns proper error code back to the user 3413 * space. 3414 */ 3415 static ssize_t lpfc_idiag_pcicfg_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)3416 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, 3417 size_t nbytes, loff_t *ppos) 3418 { 3419 struct lpfc_debug *debug = file->private_data; 3420 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3421 uint32_t where, value, count; 3422 uint32_t u32val; 3423 uint16_t u16val; 3424 uint8_t u8val; 3425 struct pci_dev *pdev; 3426 int rc; 3427 3428 pdev = phba->pcidev; 3429 if (!pdev) 3430 return -EFAULT; 3431 3432 /* This is a user write operation */ 3433 debug->op = LPFC_IDIAG_OP_WR; 3434 3435 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3436 if (rc < 0) 3437 return rc; 3438 3439 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { 3440 /* Sanity check on PCI config read command line arguments */ 3441 if (rc != LPFC_PCI_CFG_RD_CMD_ARG) 3442 goto error_out; 3443 /* Read command from PCI config space, set up command fields */ 3444 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3445 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3446 if (count == LPFC_PCI_CFG_BROWSE) { 3447 if (where % sizeof(uint32_t)) 3448 goto error_out; 3449 /* Starting offset to browse */ 3450 idiag.offset.last_rd = where; 3451 } else if ((count != sizeof(uint8_t)) && 3452 (count != sizeof(uint16_t)) && 3453 (count != sizeof(uint32_t))) 3454 goto error_out; 3455 if (count == sizeof(uint8_t)) { 3456 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3457 goto error_out; 3458 if (where % sizeof(uint8_t)) 3459 goto error_out; 3460 } 3461 if (count == sizeof(uint16_t)) { 3462 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3463 goto error_out; 3464 if (where % sizeof(uint16_t)) 3465 goto error_out; 3466 } 3467 if (count == sizeof(uint32_t)) { 3468 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3469 goto error_out; 3470 if (where % sizeof(uint32_t)) 3471 goto error_out; 3472 } 3473 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || 3474 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || 3475 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3476 /* Sanity check on PCI config write command line arguments */ 3477 if (rc != LPFC_PCI_CFG_WR_CMD_ARG) 3478 goto error_out; 3479 /* Write command to PCI config space, read-modify-write */ 3480 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; 3481 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; 3482 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; 3483 /* Sanity checks */ 3484 if ((count != sizeof(uint8_t)) && 3485 (count != sizeof(uint16_t)) && 3486 (count != sizeof(uint32_t))) 3487 goto error_out; 3488 if (count == sizeof(uint8_t)) { 3489 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) 3490 goto error_out; 3491 if (where % sizeof(uint8_t)) 3492 goto error_out; 3493 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3494 pci_write_config_byte(pdev, where, 3495 (uint8_t)value); 3496 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3497 rc = pci_read_config_byte(pdev, where, &u8val); 3498 if (!rc) { 3499 u8val |= (uint8_t)value; 3500 pci_write_config_byte(pdev, where, 3501 u8val); 3502 } 3503 } 3504 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3505 rc = pci_read_config_byte(pdev, where, &u8val); 3506 if (!rc) { 3507 u8val &= (uint8_t)(~value); 3508 pci_write_config_byte(pdev, where, 3509 u8val); 3510 } 3511 } 3512 } 3513 if (count == sizeof(uint16_t)) { 3514 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) 3515 goto error_out; 3516 if (where % sizeof(uint16_t)) 3517 goto error_out; 3518 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3519 pci_write_config_word(pdev, where, 3520 (uint16_t)value); 3521 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3522 rc = pci_read_config_word(pdev, where, &u16val); 3523 if (!rc) { 3524 u16val |= (uint16_t)value; 3525 pci_write_config_word(pdev, where, 3526 u16val); 3527 } 3528 } 3529 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3530 rc = pci_read_config_word(pdev, where, &u16val); 3531 if (!rc) { 3532 u16val &= (uint16_t)(~value); 3533 pci_write_config_word(pdev, where, 3534 u16val); 3535 } 3536 } 3537 } 3538 if (count == sizeof(uint32_t)) { 3539 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) 3540 goto error_out; 3541 if (where % sizeof(uint32_t)) 3542 goto error_out; 3543 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) 3544 pci_write_config_dword(pdev, where, value); 3545 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { 3546 rc = pci_read_config_dword(pdev, where, 3547 &u32val); 3548 if (!rc) { 3549 u32val |= value; 3550 pci_write_config_dword(pdev, where, 3551 u32val); 3552 } 3553 } 3554 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { 3555 rc = pci_read_config_dword(pdev, where, 3556 &u32val); 3557 if (!rc) { 3558 u32val &= ~value; 3559 pci_write_config_dword(pdev, where, 3560 u32val); 3561 } 3562 } 3563 } 3564 } else 3565 /* All other opecodes are illegal for now */ 3566 goto error_out; 3567 3568 return nbytes; 3569 error_out: 3570 memset(&idiag, 0, sizeof(idiag)); 3571 return -EINVAL; 3572 } 3573 3574 /** 3575 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read 3576 * @file: The file pointer to read from. 3577 * @buf: The buffer to copy the data to. 3578 * @nbytes: The number of bytes to read. 3579 * @ppos: The position in the file to start reading from. 3580 * 3581 * Description: 3582 * This routine reads data from the @phba pci bar memory mapped space 3583 * according to the idiag command, and copies to user @buf. 3584 * 3585 * Returns: 3586 * This function returns the amount of data that was read (this could be less 3587 * than @nbytes if the end of the file was reached) or a negative error value. 3588 **/ 3589 static ssize_t lpfc_idiag_baracc_read(struct file * file,char __user * buf,size_t nbytes,loff_t * ppos)3590 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, 3591 loff_t *ppos) 3592 { 3593 struct lpfc_debug *debug = file->private_data; 3594 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3595 int offset_label, offset, offset_run, len = 0, index; 3596 int bar_num, acc_range, bar_size; 3597 char *pbuffer; 3598 void __iomem *mem_mapped_bar; 3599 uint32_t if_type; 3600 struct pci_dev *pdev; 3601 uint32_t u32val; 3602 3603 pdev = phba->pcidev; 3604 if (!pdev) 3605 return 0; 3606 3607 /* This is a user read operation */ 3608 debug->op = LPFC_IDIAG_OP_RD; 3609 3610 if (!debug->buffer) 3611 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); 3612 if (!debug->buffer) 3613 return 0; 3614 pbuffer = debug->buffer; 3615 3616 if (*ppos) 3617 return 0; 3618 3619 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3620 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3621 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3622 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3623 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3624 } else 3625 return 0; 3626 3627 if (acc_range == 0) 3628 return 0; 3629 3630 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3631 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3632 if (bar_num == IDIAG_BARACC_BAR_0) 3633 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3634 else if (bar_num == IDIAG_BARACC_BAR_1) 3635 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3636 else if (bar_num == IDIAG_BARACC_BAR_2) 3637 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3638 else 3639 return 0; 3640 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3641 if (bar_num == IDIAG_BARACC_BAR_0) 3642 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3643 else 3644 return 0; 3645 } else 3646 return 0; 3647 3648 /* Read single PCI bar space register */ 3649 if (acc_range == SINGLE_WORD) { 3650 offset_run = offset; 3651 u32val = readl(mem_mapped_bar + offset_run); 3652 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3653 "%05x: %08x\n", offset_run, u32val); 3654 } else 3655 goto baracc_browse; 3656 3657 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3658 3659 baracc_browse: 3660 3661 /* Browse all PCI bar space registers */ 3662 offset_label = idiag.offset.last_rd; 3663 offset_run = offset_label; 3664 3665 /* Read PCI bar memory mapped space */ 3666 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3667 "%05x: ", offset_label); 3668 index = LPFC_PCI_BAR_RD_SIZE; 3669 while (index > 0) { 3670 u32val = readl(mem_mapped_bar + offset_run); 3671 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, 3672 "%08x ", u32val); 3673 offset_run += sizeof(uint32_t); 3674 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3675 if (offset_run >= bar_size) { 3676 len += scnprintf(pbuffer+len, 3677 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3678 break; 3679 } 3680 } else { 3681 if (offset_run >= offset + 3682 (acc_range * sizeof(uint32_t))) { 3683 len += scnprintf(pbuffer+len, 3684 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3685 break; 3686 } 3687 } 3688 index -= sizeof(uint32_t); 3689 if (!index) 3690 len += scnprintf(pbuffer+len, 3691 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); 3692 else if (!(index % (8 * sizeof(uint32_t)))) { 3693 offset_label += (8 * sizeof(uint32_t)); 3694 len += scnprintf(pbuffer+len, 3695 LPFC_PCI_BAR_RD_BUF_SIZE-len, 3696 "\n%05x: ", offset_label); 3697 } 3698 } 3699 3700 /* Set up the offset for next portion of pci bar read */ 3701 if (index == 0) { 3702 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; 3703 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3704 if (idiag.offset.last_rd >= bar_size) 3705 idiag.offset.last_rd = 0; 3706 } else { 3707 if (offset_run >= offset + 3708 (acc_range * sizeof(uint32_t))) 3709 idiag.offset.last_rd = offset; 3710 } 3711 } else { 3712 if (acc_range == LPFC_PCI_BAR_BROWSE) 3713 idiag.offset.last_rd = 0; 3714 else 3715 idiag.offset.last_rd = offset; 3716 } 3717 3718 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 3719 } 3720 3721 /** 3722 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands 3723 * @file: The file pointer to read from. 3724 * @buf: The buffer to copy the user data from. 3725 * @nbytes: The number of bytes to get. 3726 * @ppos: The position in the file to start reading from. 3727 * 3728 * This routine get the debugfs idiag command struct from user space and 3729 * then perform the syntax check for PCI bar memory mapped space read or 3730 * write command accordingly. In the case of PCI bar memory mapped space 3731 * read command, it sets up the command in the idiag command struct for 3732 * the debugfs read operation. In the case of PCI bar memorpy mapped space 3733 * write operation, it executes the write operation into the PCI bar memory 3734 * mapped space accordingly. 3735 * 3736 * It returns the @nbytges passing in from debugfs user space when successful. 3737 * In case of error conditions, it returns proper error code back to the user 3738 * space. 3739 */ 3740 static ssize_t lpfc_idiag_baracc_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)3741 lpfc_idiag_baracc_write(struct file *file, const char __user *buf, 3742 size_t nbytes, loff_t *ppos) 3743 { 3744 struct lpfc_debug *debug = file->private_data; 3745 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 3746 uint32_t bar_num, bar_size, offset, value, acc_range; 3747 struct pci_dev *pdev; 3748 void __iomem *mem_mapped_bar; 3749 uint32_t if_type; 3750 uint32_t u32val; 3751 int rc; 3752 3753 pdev = phba->pcidev; 3754 if (!pdev) 3755 return -EFAULT; 3756 3757 /* This is a user write operation */ 3758 debug->op = LPFC_IDIAG_OP_WR; 3759 3760 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 3761 if (rc < 0) 3762 return rc; 3763 3764 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 3765 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; 3766 3767 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3768 if ((bar_num != IDIAG_BARACC_BAR_0) && 3769 (bar_num != IDIAG_BARACC_BAR_1) && 3770 (bar_num != IDIAG_BARACC_BAR_2)) 3771 goto error_out; 3772 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3773 if (bar_num != IDIAG_BARACC_BAR_0) 3774 goto error_out; 3775 } else 3776 goto error_out; 3777 3778 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 3779 if (bar_num == IDIAG_BARACC_BAR_0) { 3780 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3781 LPFC_PCI_IF0_BAR0_SIZE; 3782 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3783 } else if (bar_num == IDIAG_BARACC_BAR_1) { 3784 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3785 LPFC_PCI_IF0_BAR1_SIZE; 3786 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; 3787 } else if (bar_num == IDIAG_BARACC_BAR_2) { 3788 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3789 LPFC_PCI_IF0_BAR2_SIZE; 3790 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; 3791 } else 3792 goto error_out; 3793 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 3794 if (bar_num == IDIAG_BARACC_BAR_0) { 3795 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = 3796 LPFC_PCI_IF2_BAR0_SIZE; 3797 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; 3798 } else 3799 goto error_out; 3800 } else 3801 goto error_out; 3802 3803 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; 3804 if (offset % sizeof(uint32_t)) 3805 goto error_out; 3806 3807 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; 3808 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { 3809 /* Sanity check on PCI config read command line arguments */ 3810 if (rc != LPFC_PCI_BAR_RD_CMD_ARG) 3811 goto error_out; 3812 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; 3813 if (acc_range == LPFC_PCI_BAR_BROWSE) { 3814 if (offset > bar_size - sizeof(uint32_t)) 3815 goto error_out; 3816 /* Starting offset to browse */ 3817 idiag.offset.last_rd = offset; 3818 } else if (acc_range > SINGLE_WORD) { 3819 if (offset + acc_range * sizeof(uint32_t) > bar_size) 3820 goto error_out; 3821 /* Starting offset to browse */ 3822 idiag.offset.last_rd = offset; 3823 } else if (acc_range != SINGLE_WORD) 3824 goto error_out; 3825 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || 3826 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || 3827 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3828 /* Sanity check on PCI bar write command line arguments */ 3829 if (rc != LPFC_PCI_BAR_WR_CMD_ARG) 3830 goto error_out; 3831 /* Write command to PCI bar space, read-modify-write */ 3832 acc_range = SINGLE_WORD; 3833 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; 3834 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { 3835 writel(value, mem_mapped_bar + offset); 3836 readl(mem_mapped_bar + offset); 3837 } 3838 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { 3839 u32val = readl(mem_mapped_bar + offset); 3840 u32val |= value; 3841 writel(u32val, mem_mapped_bar + offset); 3842 readl(mem_mapped_bar + offset); 3843 } 3844 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { 3845 u32val = readl(mem_mapped_bar + offset); 3846 u32val &= ~value; 3847 writel(u32val, mem_mapped_bar + offset); 3848 readl(mem_mapped_bar + offset); 3849 } 3850 } else 3851 /* All other opecodes are illegal for now */ 3852 goto error_out; 3853 3854 return nbytes; 3855 error_out: 3856 memset(&idiag, 0, sizeof(idiag)); 3857 return -EINVAL; 3858 } 3859 3860 static int __lpfc_idiag_print_wq(struct lpfc_queue * qp,char * wqtype,char * pbuffer,int len)3861 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, 3862 char *pbuffer, int len) 3863 { 3864 if (!qp) 3865 return len; 3866 3867 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3868 "\t\t%s WQ info: ", wqtype); 3869 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3870 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", 3871 qp->assoc_qid, qp->q_cnt_1, 3872 (unsigned long long)qp->q_cnt_4); 3873 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3874 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3875 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]", 3876 qp->queue_id, qp->entry_count, 3877 qp->entry_size, qp->host_index, 3878 qp->hba_index, qp->notify_interval); 3879 len += scnprintf(pbuffer + len, 3880 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); 3881 return len; 3882 } 3883 3884 static int lpfc_idiag_wqs_for_cq(struct lpfc_hba * phba,char * wqtype,char * pbuffer,int * len,int max_cnt,int cq_id)3885 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, 3886 int *len, int max_cnt, int cq_id) 3887 { 3888 struct lpfc_queue *qp; 3889 int qidx; 3890 3891 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 3892 qp = phba->sli4_hba.hdwq[qidx].io_wq; 3893 if (qp->assoc_qid != cq_id) 3894 continue; 3895 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); 3896 if (*len >= max_cnt) 3897 return 1; 3898 } 3899 return 0; 3900 } 3901 3902 static int __lpfc_idiag_print_cq(struct lpfc_queue * qp,char * cqtype,char * pbuffer,int len)3903 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, 3904 char *pbuffer, int len) 3905 { 3906 if (!qp) 3907 return len; 3908 3909 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3910 "\t%s CQ info: ", cqtype); 3911 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3912 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " 3913 "xabt:x%x wq:x%llx]\n", 3914 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3915 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3916 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3917 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3918 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d]", 3919 qp->queue_id, qp->entry_count, 3920 qp->entry_size, qp->host_index, 3921 qp->notify_interval, qp->max_proc_limit); 3922 3923 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3924 "\n"); 3925 3926 return len; 3927 } 3928 3929 static int __lpfc_idiag_print_rqpair(struct lpfc_queue * qp,struct lpfc_queue * datqp,char * rqtype,char * pbuffer,int len)3930 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, 3931 char *rqtype, char *pbuffer, int len) 3932 { 3933 if (!qp || !datqp) 3934 return len; 3935 3936 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3937 "\t\t%s RQ info: ", rqtype); 3938 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3939 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " 3940 "posted:x%x rcv:x%llx]\n", 3941 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, 3942 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); 3943 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3944 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3945 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3946 qp->queue_id, qp->entry_count, qp->entry_size, 3947 qp->host_index, qp->hba_index, qp->notify_interval); 3948 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 3949 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 3950 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n", 3951 datqp->queue_id, datqp->entry_count, 3952 datqp->entry_size, datqp->host_index, 3953 datqp->hba_index, datqp->notify_interval); 3954 return len; 3955 } 3956 3957 static int lpfc_idiag_cqs_for_eq(struct lpfc_hba * phba,char * pbuffer,int * len,int max_cnt,int eqidx,int eq_id)3958 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, 3959 int *len, int max_cnt, int eqidx, int eq_id) 3960 { 3961 struct lpfc_queue *qp; 3962 int rc; 3963 3964 qp = phba->sli4_hba.hdwq[eqidx].io_cq; 3965 3966 *len = __lpfc_idiag_print_cq(qp, "IO", pbuffer, *len); 3967 3968 /* Reset max counter */ 3969 qp->CQ_max_cqe = 0; 3970 3971 if (*len >= max_cnt) 3972 return 1; 3973 3974 rc = lpfc_idiag_wqs_for_cq(phba, "IO", pbuffer, len, 3975 max_cnt, qp->queue_id); 3976 if (rc) 3977 return 1; 3978 3979 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) { 3980 /* NVMET CQset */ 3981 qp = phba->sli4_hba.nvmet_cqset[eqidx]; 3982 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len); 3983 3984 /* Reset max counter */ 3985 qp->CQ_max_cqe = 0; 3986 3987 if (*len >= max_cnt) 3988 return 1; 3989 3990 /* RQ header */ 3991 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; 3992 *len = __lpfc_idiag_print_rqpair(qp, 3993 phba->sli4_hba.nvmet_mrq_data[eqidx], 3994 "NVMET MRQ", pbuffer, *len); 3995 3996 if (*len >= max_cnt) 3997 return 1; 3998 } 3999 4000 return 0; 4001 } 4002 4003 static int __lpfc_idiag_print_eq(struct lpfc_queue * qp,char * eqtype,char * pbuffer,int len)4004 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, 4005 char *pbuffer, int len) 4006 { 4007 if (!qp) 4008 return len; 4009 4010 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4011 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " 4012 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n", 4013 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, 4014 (unsigned long long)qp->q_cnt_4, qp->q_mode); 4015 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4016 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " 4017 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]", 4018 qp->queue_id, qp->entry_count, qp->entry_size, 4019 qp->host_index, qp->notify_interval, 4020 qp->max_proc_limit, qp->chann); 4021 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, 4022 "\n"); 4023 4024 return len; 4025 } 4026 4027 /** 4028 * lpfc_idiag_queinfo_read - idiag debugfs read queue information 4029 * @file: The file pointer to read from. 4030 * @buf: The buffer to copy the data to. 4031 * @nbytes: The number of bytes to read. 4032 * @ppos: The position in the file to start reading from. 4033 * 4034 * Description: 4035 * This routine reads data from the @phba SLI4 PCI function queue information, 4036 * and copies to user @buf. 4037 * This routine only returns 1 EQs worth of information. It remembers the last 4038 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will 4039 * retrieve all EQs allocated for the phba. 4040 * 4041 * Returns: 4042 * This function returns the amount of data that was read (this could be less 4043 * than @nbytes if the end of the file was reached) or a negative error value. 4044 **/ 4045 static ssize_t lpfc_idiag_queinfo_read(struct file * file,char __user * buf,size_t nbytes,loff_t * ppos)4046 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, 4047 loff_t *ppos) 4048 { 4049 struct lpfc_debug *debug = file->private_data; 4050 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4051 char *pbuffer; 4052 int max_cnt, rc, x, len = 0; 4053 struct lpfc_queue *qp = NULL; 4054 4055 if (!debug->buffer) 4056 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); 4057 if (!debug->buffer) 4058 return 0; 4059 pbuffer = debug->buffer; 4060 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; 4061 4062 if (*ppos) 4063 return 0; 4064 4065 spin_lock_irq(&phba->hbalock); 4066 4067 /* Fast-path event queue */ 4068 if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) { 4069 4070 x = phba->lpfc_idiag_last_eq; 4071 phba->lpfc_idiag_last_eq++; 4072 if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue) 4073 phba->lpfc_idiag_last_eq = 0; 4074 4075 len += scnprintf(pbuffer + len, 4076 LPFC_QUE_INFO_GET_BUF_SIZE - len, 4077 "HDWQ %d out of %d HBA HDWQs\n", 4078 x, phba->cfg_hdw_queue); 4079 4080 /* Fast-path EQ */ 4081 qp = phba->sli4_hba.hdwq[x].hba_eq; 4082 if (!qp) 4083 goto out; 4084 4085 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); 4086 4087 /* Reset max counter */ 4088 qp->EQ_max_eqe = 0; 4089 4090 if (len >= max_cnt) 4091 goto too_big; 4092 4093 /* will dump both fcp and nvme cqs/wqs for the eq */ 4094 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, 4095 max_cnt, x, qp->queue_id); 4096 if (rc) 4097 goto too_big; 4098 4099 /* Only EQ 0 has slow path CQs configured */ 4100 if (x) 4101 goto out; 4102 4103 /* Slow-path mailbox CQ */ 4104 qp = phba->sli4_hba.mbx_cq; 4105 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); 4106 if (len >= max_cnt) 4107 goto too_big; 4108 4109 /* Slow-path MBOX MQ */ 4110 qp = phba->sli4_hba.mbx_wq; 4111 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); 4112 if (len >= max_cnt) 4113 goto too_big; 4114 4115 /* Slow-path ELS response CQ */ 4116 qp = phba->sli4_hba.els_cq; 4117 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); 4118 /* Reset max counter */ 4119 if (qp) 4120 qp->CQ_max_cqe = 0; 4121 if (len >= max_cnt) 4122 goto too_big; 4123 4124 /* Slow-path ELS WQ */ 4125 qp = phba->sli4_hba.els_wq; 4126 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); 4127 if (len >= max_cnt) 4128 goto too_big; 4129 4130 qp = phba->sli4_hba.hdr_rq; 4131 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, 4132 "ELS RQpair", pbuffer, len); 4133 if (len >= max_cnt) 4134 goto too_big; 4135 4136 /* Slow-path NVME LS response CQ */ 4137 qp = phba->sli4_hba.nvmels_cq; 4138 len = __lpfc_idiag_print_cq(qp, "NVME LS", 4139 pbuffer, len); 4140 /* Reset max counter */ 4141 if (qp) 4142 qp->CQ_max_cqe = 0; 4143 if (len >= max_cnt) 4144 goto too_big; 4145 4146 /* Slow-path NVME LS WQ */ 4147 qp = phba->sli4_hba.nvmels_wq; 4148 len = __lpfc_idiag_print_wq(qp, "NVME LS", 4149 pbuffer, len); 4150 if (len >= max_cnt) 4151 goto too_big; 4152 4153 goto out; 4154 } 4155 4156 spin_unlock_irq(&phba->hbalock); 4157 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4158 4159 too_big: 4160 len += scnprintf(pbuffer + len, 4161 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); 4162 out: 4163 spin_unlock_irq(&phba->hbalock); 4164 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4165 } 4166 4167 /** 4168 * lpfc_idiag_que_param_check - queue access command parameter sanity check 4169 * @q: The pointer to queue structure. 4170 * @index: The index into a queue entry. 4171 * @count: The number of queue entries to access. 4172 * 4173 * Description: 4174 * The routine performs sanity check on device queue access method commands. 4175 * 4176 * Returns: 4177 * This function returns -EINVAL when fails the sanity check, otherwise, it 4178 * returns 0. 4179 **/ 4180 static int lpfc_idiag_que_param_check(struct lpfc_queue * q,int index,int count)4181 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) 4182 { 4183 /* Only support single entry read or browsing */ 4184 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) 4185 return -EINVAL; 4186 if (index > q->entry_count - 1) 4187 return -EINVAL; 4188 return 0; 4189 } 4190 4191 /** 4192 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index 4193 * @pbuffer: The pointer to buffer to copy the read data into. 4194 * @len: Length of the buffer. 4195 * @pque: The pointer to the queue to be read. 4196 * @index: The index into the queue entry. 4197 * 4198 * Description: 4199 * This routine reads out a single entry from the given queue's index location 4200 * and copies it into the buffer provided. 4201 * 4202 * Returns: 4203 * This function returns 0 when it fails, otherwise, it returns the length of 4204 * the data read into the buffer provided. 4205 **/ 4206 static int lpfc_idiag_queacc_read_qe(char * pbuffer,int len,struct lpfc_queue * pque,uint32_t index)4207 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, 4208 uint32_t index) 4209 { 4210 int offset, esize; 4211 uint32_t *pentry; 4212 4213 if (!pbuffer || !pque) 4214 return 0; 4215 4216 esize = pque->entry_size; 4217 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4218 "QE-INDEX[%04d]:\n", index); 4219 4220 offset = 0; 4221 pentry = lpfc_sli4_qe(pque, index); 4222 while (esize > 0) { 4223 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, 4224 "%08x ", *pentry); 4225 pentry++; 4226 offset += sizeof(uint32_t); 4227 esize -= sizeof(uint32_t); 4228 if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) 4229 len += scnprintf(pbuffer+len, 4230 LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4231 } 4232 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); 4233 4234 return len; 4235 } 4236 4237 /** 4238 * lpfc_idiag_queacc_read - idiag debugfs read port queue 4239 * @file: The file pointer to read from. 4240 * @buf: The buffer to copy the data to. 4241 * @nbytes: The number of bytes to read. 4242 * @ppos: The position in the file to start reading from. 4243 * 4244 * Description: 4245 * This routine reads data from the @phba device queue memory according to the 4246 * idiag command, and copies to user @buf. Depending on the queue dump read 4247 * command setup, it does either a single queue entry read or browing through 4248 * all entries of the queue. 4249 * 4250 * Returns: 4251 * This function returns the amount of data that was read (this could be less 4252 * than @nbytes if the end of the file was reached) or a negative error value. 4253 **/ 4254 static ssize_t lpfc_idiag_queacc_read(struct file * file,char __user * buf,size_t nbytes,loff_t * ppos)4255 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, 4256 loff_t *ppos) 4257 { 4258 struct lpfc_debug *debug = file->private_data; 4259 uint32_t last_index, index, count; 4260 struct lpfc_queue *pque = NULL; 4261 char *pbuffer; 4262 int len = 0; 4263 4264 /* This is a user read operation */ 4265 debug->op = LPFC_IDIAG_OP_RD; 4266 4267 if (!debug->buffer) 4268 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); 4269 if (!debug->buffer) 4270 return 0; 4271 pbuffer = debug->buffer; 4272 4273 if (*ppos) 4274 return 0; 4275 4276 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4277 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4278 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4279 pque = (struct lpfc_queue *)idiag.ptr_private; 4280 } else 4281 return 0; 4282 4283 /* Browse the queue starting from index */ 4284 if (count == LPFC_QUE_ACC_BROWSE) 4285 goto que_browse; 4286 4287 /* Read a single entry from the queue */ 4288 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4289 4290 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4291 4292 que_browse: 4293 4294 /* Browse all entries from the queue */ 4295 last_index = idiag.offset.last_rd; 4296 index = last_index; 4297 4298 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { 4299 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); 4300 index++; 4301 if (index > pque->entry_count - 1) 4302 break; 4303 } 4304 4305 /* Set up the offset for next portion of pci cfg read */ 4306 if (index > pque->entry_count - 1) 4307 index = 0; 4308 idiag.offset.last_rd = index; 4309 4310 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4311 } 4312 4313 /** 4314 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands 4315 * @file: The file pointer to read from. 4316 * @buf: The buffer to copy the user data from. 4317 * @nbytes: The number of bytes to get. 4318 * @ppos: The position in the file to start reading from. 4319 * 4320 * This routine get the debugfs idiag command struct from user space and then 4321 * perform the syntax check for port queue read (dump) or write (set) command 4322 * accordingly. In the case of port queue read command, it sets up the command 4323 * in the idiag command struct for the following debugfs read operation. In 4324 * the case of port queue write operation, it executes the write operation 4325 * into the port queue entry accordingly. 4326 * 4327 * It returns the @nbytges passing in from debugfs user space when successful. 4328 * In case of error conditions, it returns proper error code back to the user 4329 * space. 4330 **/ 4331 static ssize_t lpfc_idiag_queacc_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)4332 lpfc_idiag_queacc_write(struct file *file, const char __user *buf, 4333 size_t nbytes, loff_t *ppos) 4334 { 4335 struct lpfc_debug *debug = file->private_data; 4336 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4337 uint32_t qidx, quetp, queid, index, count, offset, value; 4338 uint32_t *pentry; 4339 struct lpfc_queue *pque, *qp; 4340 int rc; 4341 4342 /* This is a user write operation */ 4343 debug->op = LPFC_IDIAG_OP_WR; 4344 4345 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4346 if (rc < 0) 4347 return rc; 4348 4349 /* Get and sanity check on command feilds */ 4350 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; 4351 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; 4352 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; 4353 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; 4354 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; 4355 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; 4356 4357 /* Sanity check on command line arguments */ 4358 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4359 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4360 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4361 if (rc != LPFC_QUE_ACC_WR_CMD_ARG) 4362 goto error_out; 4363 if (count != 1) 4364 goto error_out; 4365 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4366 if (rc != LPFC_QUE_ACC_RD_CMD_ARG) 4367 goto error_out; 4368 } else 4369 goto error_out; 4370 4371 switch (quetp) { 4372 case LPFC_IDIAG_EQ: 4373 /* HBA event queue */ 4374 if (phba->sli4_hba.hdwq) { 4375 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4376 qp = phba->sli4_hba.hdwq[qidx].hba_eq; 4377 if (qp && qp->queue_id == queid) { 4378 /* Sanity check */ 4379 rc = lpfc_idiag_que_param_check(qp, 4380 index, count); 4381 if (rc) 4382 goto error_out; 4383 idiag.ptr_private = qp; 4384 goto pass_check; 4385 } 4386 } 4387 } 4388 goto error_out; 4389 4390 case LPFC_IDIAG_CQ: 4391 /* MBX complete queue */ 4392 if (phba->sli4_hba.mbx_cq && 4393 phba->sli4_hba.mbx_cq->queue_id == queid) { 4394 /* Sanity check */ 4395 rc = lpfc_idiag_que_param_check( 4396 phba->sli4_hba.mbx_cq, index, count); 4397 if (rc) 4398 goto error_out; 4399 idiag.ptr_private = phba->sli4_hba.mbx_cq; 4400 goto pass_check; 4401 } 4402 /* ELS complete queue */ 4403 if (phba->sli4_hba.els_cq && 4404 phba->sli4_hba.els_cq->queue_id == queid) { 4405 /* Sanity check */ 4406 rc = lpfc_idiag_que_param_check( 4407 phba->sli4_hba.els_cq, index, count); 4408 if (rc) 4409 goto error_out; 4410 idiag.ptr_private = phba->sli4_hba.els_cq; 4411 goto pass_check; 4412 } 4413 /* NVME LS complete queue */ 4414 if (phba->sli4_hba.nvmels_cq && 4415 phba->sli4_hba.nvmels_cq->queue_id == queid) { 4416 /* Sanity check */ 4417 rc = lpfc_idiag_que_param_check( 4418 phba->sli4_hba.nvmels_cq, index, count); 4419 if (rc) 4420 goto error_out; 4421 idiag.ptr_private = phba->sli4_hba.nvmels_cq; 4422 goto pass_check; 4423 } 4424 /* FCP complete queue */ 4425 if (phba->sli4_hba.hdwq) { 4426 for (qidx = 0; qidx < phba->cfg_hdw_queue; 4427 qidx++) { 4428 qp = phba->sli4_hba.hdwq[qidx].io_cq; 4429 if (qp && qp->queue_id == queid) { 4430 /* Sanity check */ 4431 rc = lpfc_idiag_que_param_check( 4432 qp, index, count); 4433 if (rc) 4434 goto error_out; 4435 idiag.ptr_private = qp; 4436 goto pass_check; 4437 } 4438 } 4439 } 4440 goto error_out; 4441 4442 case LPFC_IDIAG_MQ: 4443 /* MBX work queue */ 4444 if (phba->sli4_hba.mbx_wq && 4445 phba->sli4_hba.mbx_wq->queue_id == queid) { 4446 /* Sanity check */ 4447 rc = lpfc_idiag_que_param_check( 4448 phba->sli4_hba.mbx_wq, index, count); 4449 if (rc) 4450 goto error_out; 4451 idiag.ptr_private = phba->sli4_hba.mbx_wq; 4452 goto pass_check; 4453 } 4454 goto error_out; 4455 4456 case LPFC_IDIAG_WQ: 4457 /* ELS work queue */ 4458 if (phba->sli4_hba.els_wq && 4459 phba->sli4_hba.els_wq->queue_id == queid) { 4460 /* Sanity check */ 4461 rc = lpfc_idiag_que_param_check( 4462 phba->sli4_hba.els_wq, index, count); 4463 if (rc) 4464 goto error_out; 4465 idiag.ptr_private = phba->sli4_hba.els_wq; 4466 goto pass_check; 4467 } 4468 /* NVME LS work queue */ 4469 if (phba->sli4_hba.nvmels_wq && 4470 phba->sli4_hba.nvmels_wq->queue_id == queid) { 4471 /* Sanity check */ 4472 rc = lpfc_idiag_que_param_check( 4473 phba->sli4_hba.nvmels_wq, index, count); 4474 if (rc) 4475 goto error_out; 4476 idiag.ptr_private = phba->sli4_hba.nvmels_wq; 4477 goto pass_check; 4478 } 4479 4480 if (phba->sli4_hba.hdwq) { 4481 /* FCP/SCSI work queue */ 4482 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 4483 qp = phba->sli4_hba.hdwq[qidx].io_wq; 4484 if (qp && qp->queue_id == queid) { 4485 /* Sanity check */ 4486 rc = lpfc_idiag_que_param_check( 4487 qp, index, count); 4488 if (rc) 4489 goto error_out; 4490 idiag.ptr_private = qp; 4491 goto pass_check; 4492 } 4493 } 4494 } 4495 goto error_out; 4496 4497 case LPFC_IDIAG_RQ: 4498 /* HDR queue */ 4499 if (phba->sli4_hba.hdr_rq && 4500 phba->sli4_hba.hdr_rq->queue_id == queid) { 4501 /* Sanity check */ 4502 rc = lpfc_idiag_que_param_check( 4503 phba->sli4_hba.hdr_rq, index, count); 4504 if (rc) 4505 goto error_out; 4506 idiag.ptr_private = phba->sli4_hba.hdr_rq; 4507 goto pass_check; 4508 } 4509 /* DAT queue */ 4510 if (phba->sli4_hba.dat_rq && 4511 phba->sli4_hba.dat_rq->queue_id == queid) { 4512 /* Sanity check */ 4513 rc = lpfc_idiag_que_param_check( 4514 phba->sli4_hba.dat_rq, index, count); 4515 if (rc) 4516 goto error_out; 4517 idiag.ptr_private = phba->sli4_hba.dat_rq; 4518 goto pass_check; 4519 } 4520 goto error_out; 4521 default: 4522 goto error_out; 4523 } 4524 4525 pass_check: 4526 4527 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { 4528 if (count == LPFC_QUE_ACC_BROWSE) 4529 idiag.offset.last_rd = index; 4530 } 4531 4532 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || 4533 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || 4534 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { 4535 /* Additional sanity checks on write operation */ 4536 pque = (struct lpfc_queue *)idiag.ptr_private; 4537 if (offset > pque->entry_size/sizeof(uint32_t) - 1) 4538 goto error_out; 4539 pentry = lpfc_sli4_qe(pque, index); 4540 pentry += offset; 4541 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) 4542 *pentry = value; 4543 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) 4544 *pentry |= value; 4545 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) 4546 *pentry &= ~value; 4547 } 4548 return nbytes; 4549 4550 error_out: 4551 /* Clean out command structure on command error out */ 4552 memset(&idiag, 0, sizeof(idiag)); 4553 return -EINVAL; 4554 } 4555 4556 /** 4557 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register 4558 * @phba: The pointer to hba structure. 4559 * @pbuffer: The pointer to the buffer to copy the data to. 4560 * @len: The length of bytes to copied. 4561 * @drbregid: The id to doorbell registers. 4562 * 4563 * Description: 4564 * This routine reads a doorbell register and copies its content to the 4565 * user buffer pointed to by @pbuffer. 4566 * 4567 * Returns: 4568 * This function returns the amount of data that was copied into @pbuffer. 4569 **/ 4570 static int lpfc_idiag_drbacc_read_reg(struct lpfc_hba * phba,char * pbuffer,int len,uint32_t drbregid)4571 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4572 int len, uint32_t drbregid) 4573 { 4574 4575 if (!pbuffer) 4576 return 0; 4577 4578 switch (drbregid) { 4579 case LPFC_DRB_EQ: 4580 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len, 4581 "EQ-DRB-REG: 0x%08x\n", 4582 readl(phba->sli4_hba.EQDBregaddr)); 4583 break; 4584 case LPFC_DRB_CQ: 4585 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len, 4586 "CQ-DRB-REG: 0x%08x\n", 4587 readl(phba->sli4_hba.CQDBregaddr)); 4588 break; 4589 case LPFC_DRB_MQ: 4590 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4591 "MQ-DRB-REG: 0x%08x\n", 4592 readl(phba->sli4_hba.MQDBregaddr)); 4593 break; 4594 case LPFC_DRB_WQ: 4595 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4596 "WQ-DRB-REG: 0x%08x\n", 4597 readl(phba->sli4_hba.WQDBregaddr)); 4598 break; 4599 case LPFC_DRB_RQ: 4600 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, 4601 "RQ-DRB-REG: 0x%08x\n", 4602 readl(phba->sli4_hba.RQDBregaddr)); 4603 break; 4604 default: 4605 break; 4606 } 4607 4608 return len; 4609 } 4610 4611 /** 4612 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell 4613 * @file: The file pointer to read from. 4614 * @buf: The buffer to copy the data to. 4615 * @nbytes: The number of bytes to read. 4616 * @ppos: The position in the file to start reading from. 4617 * 4618 * Description: 4619 * This routine reads data from the @phba device doorbell register according 4620 * to the idiag command, and copies to user @buf. Depending on the doorbell 4621 * register read command setup, it does either a single doorbell register 4622 * read or dump all doorbell registers. 4623 * 4624 * Returns: 4625 * This function returns the amount of data that was read (this could be less 4626 * than @nbytes if the end of the file was reached) or a negative error value. 4627 **/ 4628 static ssize_t lpfc_idiag_drbacc_read(struct file * file,char __user * buf,size_t nbytes,loff_t * ppos)4629 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, 4630 loff_t *ppos) 4631 { 4632 struct lpfc_debug *debug = file->private_data; 4633 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4634 uint32_t drb_reg_id, i; 4635 char *pbuffer; 4636 int len = 0; 4637 4638 /* This is a user read operation */ 4639 debug->op = LPFC_IDIAG_OP_RD; 4640 4641 if (!debug->buffer) 4642 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); 4643 if (!debug->buffer) 4644 return 0; 4645 pbuffer = debug->buffer; 4646 4647 if (*ppos) 4648 return 0; 4649 4650 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) 4651 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4652 else 4653 return 0; 4654 4655 if (drb_reg_id == LPFC_DRB_ACC_ALL) 4656 for (i = 1; i <= LPFC_DRB_MAX; i++) 4657 len = lpfc_idiag_drbacc_read_reg(phba, 4658 pbuffer, len, i); 4659 else 4660 len = lpfc_idiag_drbacc_read_reg(phba, 4661 pbuffer, len, drb_reg_id); 4662 4663 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4664 } 4665 4666 /** 4667 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands 4668 * @file: The file pointer to read from. 4669 * @buf: The buffer to copy the user data from. 4670 * @nbytes: The number of bytes to get. 4671 * @ppos: The position in the file to start reading from. 4672 * 4673 * This routine get the debugfs idiag command struct from user space and then 4674 * perform the syntax check for port doorbell register read (dump) or write 4675 * (set) command accordingly. In the case of port queue read command, it sets 4676 * up the command in the idiag command struct for the following debugfs read 4677 * operation. In the case of port doorbell register write operation, it 4678 * executes the write operation into the port doorbell register accordingly. 4679 * 4680 * It returns the @nbytges passing in from debugfs user space when successful. 4681 * In case of error conditions, it returns proper error code back to the user 4682 * space. 4683 **/ 4684 static ssize_t lpfc_idiag_drbacc_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)4685 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, 4686 size_t nbytes, loff_t *ppos) 4687 { 4688 struct lpfc_debug *debug = file->private_data; 4689 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4690 uint32_t drb_reg_id, value, reg_val = 0; 4691 void __iomem *drb_reg; 4692 int rc; 4693 4694 /* This is a user write operation */ 4695 debug->op = LPFC_IDIAG_OP_WR; 4696 4697 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4698 if (rc < 0) 4699 return rc; 4700 4701 /* Sanity check on command line arguments */ 4702 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; 4703 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; 4704 4705 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4706 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4707 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4708 if (rc != LPFC_DRB_ACC_WR_CMD_ARG) 4709 goto error_out; 4710 if (drb_reg_id > LPFC_DRB_MAX) 4711 goto error_out; 4712 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { 4713 if (rc != LPFC_DRB_ACC_RD_CMD_ARG) 4714 goto error_out; 4715 if ((drb_reg_id > LPFC_DRB_MAX) && 4716 (drb_reg_id != LPFC_DRB_ACC_ALL)) 4717 goto error_out; 4718 } else 4719 goto error_out; 4720 4721 /* Perform the write access operation */ 4722 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || 4723 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || 4724 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4725 switch (drb_reg_id) { 4726 case LPFC_DRB_EQ: 4727 drb_reg = phba->sli4_hba.EQDBregaddr; 4728 break; 4729 case LPFC_DRB_CQ: 4730 drb_reg = phba->sli4_hba.CQDBregaddr; 4731 break; 4732 case LPFC_DRB_MQ: 4733 drb_reg = phba->sli4_hba.MQDBregaddr; 4734 break; 4735 case LPFC_DRB_WQ: 4736 drb_reg = phba->sli4_hba.WQDBregaddr; 4737 break; 4738 case LPFC_DRB_RQ: 4739 drb_reg = phba->sli4_hba.RQDBregaddr; 4740 break; 4741 default: 4742 goto error_out; 4743 } 4744 4745 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) 4746 reg_val = value; 4747 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { 4748 reg_val = readl(drb_reg); 4749 reg_val |= value; 4750 } 4751 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { 4752 reg_val = readl(drb_reg); 4753 reg_val &= ~value; 4754 } 4755 writel(reg_val, drb_reg); 4756 readl(drb_reg); /* flush */ 4757 } 4758 return nbytes; 4759 4760 error_out: 4761 /* Clean out command structure on command error out */ 4762 memset(&idiag, 0, sizeof(idiag)); 4763 return -EINVAL; 4764 } 4765 4766 /** 4767 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers 4768 * @phba: The pointer to hba structure. 4769 * @pbuffer: The pointer to the buffer to copy the data to. 4770 * @len: The length of bytes to copied. 4771 * @ctlregid: The id to doorbell registers. 4772 * 4773 * Description: 4774 * This routine reads a control register and copies its content to the 4775 * user buffer pointed to by @pbuffer. 4776 * 4777 * Returns: 4778 * This function returns the amount of data that was copied into @pbuffer. 4779 **/ 4780 static int lpfc_idiag_ctlacc_read_reg(struct lpfc_hba * phba,char * pbuffer,int len,uint32_t ctlregid)4781 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, 4782 int len, uint32_t ctlregid) 4783 { 4784 4785 if (!pbuffer) 4786 return 0; 4787 4788 switch (ctlregid) { 4789 case LPFC_CTL_PORT_SEM: 4790 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4791 "Port SemReg: 0x%08x\n", 4792 readl(phba->sli4_hba.conf_regs_memmap_p + 4793 LPFC_CTL_PORT_SEM_OFFSET)); 4794 break; 4795 case LPFC_CTL_PORT_STA: 4796 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4797 "Port StaReg: 0x%08x\n", 4798 readl(phba->sli4_hba.conf_regs_memmap_p + 4799 LPFC_CTL_PORT_STA_OFFSET)); 4800 break; 4801 case LPFC_CTL_PORT_CTL: 4802 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4803 "Port CtlReg: 0x%08x\n", 4804 readl(phba->sli4_hba.conf_regs_memmap_p + 4805 LPFC_CTL_PORT_CTL_OFFSET)); 4806 break; 4807 case LPFC_CTL_PORT_ER1: 4808 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4809 "Port Er1Reg: 0x%08x\n", 4810 readl(phba->sli4_hba.conf_regs_memmap_p + 4811 LPFC_CTL_PORT_ER1_OFFSET)); 4812 break; 4813 case LPFC_CTL_PORT_ER2: 4814 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4815 "Port Er2Reg: 0x%08x\n", 4816 readl(phba->sli4_hba.conf_regs_memmap_p + 4817 LPFC_CTL_PORT_ER2_OFFSET)); 4818 break; 4819 case LPFC_CTL_PDEV_CTL: 4820 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, 4821 "PDev CtlReg: 0x%08x\n", 4822 readl(phba->sli4_hba.conf_regs_memmap_p + 4823 LPFC_CTL_PDEV_CTL_OFFSET)); 4824 break; 4825 default: 4826 break; 4827 } 4828 return len; 4829 } 4830 4831 /** 4832 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register 4833 * @file: The file pointer to read from. 4834 * @buf: The buffer to copy the data to. 4835 * @nbytes: The number of bytes to read. 4836 * @ppos: The position in the file to start reading from. 4837 * 4838 * Description: 4839 * This routine reads data from the @phba port and device registers according 4840 * to the idiag command, and copies to user @buf. 4841 * 4842 * Returns: 4843 * This function returns the amount of data that was read (this could be less 4844 * than @nbytes if the end of the file was reached) or a negative error value. 4845 **/ 4846 static ssize_t lpfc_idiag_ctlacc_read(struct file * file,char __user * buf,size_t nbytes,loff_t * ppos)4847 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, 4848 loff_t *ppos) 4849 { 4850 struct lpfc_debug *debug = file->private_data; 4851 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4852 uint32_t ctl_reg_id, i; 4853 char *pbuffer; 4854 int len = 0; 4855 4856 /* This is a user read operation */ 4857 debug->op = LPFC_IDIAG_OP_RD; 4858 4859 if (!debug->buffer) 4860 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); 4861 if (!debug->buffer) 4862 return 0; 4863 pbuffer = debug->buffer; 4864 4865 if (*ppos) 4866 return 0; 4867 4868 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) 4869 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4870 else 4871 return 0; 4872 4873 if (ctl_reg_id == LPFC_CTL_ACC_ALL) 4874 for (i = 1; i <= LPFC_CTL_MAX; i++) 4875 len = lpfc_idiag_ctlacc_read_reg(phba, 4876 pbuffer, len, i); 4877 else 4878 len = lpfc_idiag_ctlacc_read_reg(phba, 4879 pbuffer, len, ctl_reg_id); 4880 4881 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 4882 } 4883 4884 /** 4885 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands 4886 * @file: The file pointer to read from. 4887 * @buf: The buffer to copy the user data from. 4888 * @nbytes: The number of bytes to get. 4889 * @ppos: The position in the file to start reading from. 4890 * 4891 * This routine get the debugfs idiag command struct from user space and then 4892 * perform the syntax check for port and device control register read (dump) 4893 * or write (set) command accordingly. 4894 * 4895 * It returns the @nbytges passing in from debugfs user space when successful. 4896 * In case of error conditions, it returns proper error code back to the user 4897 * space. 4898 **/ 4899 static ssize_t lpfc_idiag_ctlacc_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)4900 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, 4901 size_t nbytes, loff_t *ppos) 4902 { 4903 struct lpfc_debug *debug = file->private_data; 4904 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 4905 uint32_t ctl_reg_id, value, reg_val = 0; 4906 void __iomem *ctl_reg; 4907 int rc; 4908 4909 /* This is a user write operation */ 4910 debug->op = LPFC_IDIAG_OP_WR; 4911 4912 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 4913 if (rc < 0) 4914 return rc; 4915 4916 /* Sanity check on command line arguments */ 4917 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; 4918 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; 4919 4920 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4921 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4922 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4923 if (rc != LPFC_CTL_ACC_WR_CMD_ARG) 4924 goto error_out; 4925 if (ctl_reg_id > LPFC_CTL_MAX) 4926 goto error_out; 4927 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { 4928 if (rc != LPFC_CTL_ACC_RD_CMD_ARG) 4929 goto error_out; 4930 if ((ctl_reg_id > LPFC_CTL_MAX) && 4931 (ctl_reg_id != LPFC_CTL_ACC_ALL)) 4932 goto error_out; 4933 } else 4934 goto error_out; 4935 4936 /* Perform the write access operation */ 4937 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || 4938 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || 4939 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4940 switch (ctl_reg_id) { 4941 case LPFC_CTL_PORT_SEM: 4942 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4943 LPFC_CTL_PORT_SEM_OFFSET; 4944 break; 4945 case LPFC_CTL_PORT_STA: 4946 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4947 LPFC_CTL_PORT_STA_OFFSET; 4948 break; 4949 case LPFC_CTL_PORT_CTL: 4950 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4951 LPFC_CTL_PORT_CTL_OFFSET; 4952 break; 4953 case LPFC_CTL_PORT_ER1: 4954 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4955 LPFC_CTL_PORT_ER1_OFFSET; 4956 break; 4957 case LPFC_CTL_PORT_ER2: 4958 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4959 LPFC_CTL_PORT_ER2_OFFSET; 4960 break; 4961 case LPFC_CTL_PDEV_CTL: 4962 ctl_reg = phba->sli4_hba.conf_regs_memmap_p + 4963 LPFC_CTL_PDEV_CTL_OFFSET; 4964 break; 4965 default: 4966 goto error_out; 4967 } 4968 4969 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) 4970 reg_val = value; 4971 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { 4972 reg_val = readl(ctl_reg); 4973 reg_val |= value; 4974 } 4975 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { 4976 reg_val = readl(ctl_reg); 4977 reg_val &= ~value; 4978 } 4979 writel(reg_val, ctl_reg); 4980 readl(ctl_reg); /* flush */ 4981 } 4982 return nbytes; 4983 4984 error_out: 4985 /* Clean out command structure on command error out */ 4986 memset(&idiag, 0, sizeof(idiag)); 4987 return -EINVAL; 4988 } 4989 4990 /** 4991 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup 4992 * @phba: Pointer to HBA context object. 4993 * @pbuffer: Pointer to data buffer. 4994 * 4995 * Description: 4996 * This routine gets the driver mailbox access debugfs setup information. 4997 * 4998 * Returns: 4999 * This function returns the amount of data that was read (this could be less 5000 * than @nbytes if the end of the file was reached) or a negative error value. 5001 **/ 5002 static int lpfc_idiag_mbxacc_get_setup(struct lpfc_hba * phba,char * pbuffer)5003 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) 5004 { 5005 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5006 int len = 0; 5007 5008 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5009 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5010 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5011 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5012 5013 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5014 "mbx_dump_map: 0x%08x\n", mbx_dump_map); 5015 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5016 "mbx_dump_cnt: %04d\n", mbx_dump_cnt); 5017 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5018 "mbx_word_cnt: %04d\n", mbx_word_cnt); 5019 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, 5020 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); 5021 5022 return len; 5023 } 5024 5025 /** 5026 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access 5027 * @file: The file pointer to read from. 5028 * @buf: The buffer to copy the data to. 5029 * @nbytes: The number of bytes to read. 5030 * @ppos: The position in the file to start reading from. 5031 * 5032 * Description: 5033 * This routine reads data from the @phba driver mailbox access debugfs setup 5034 * information. 5035 * 5036 * Returns: 5037 * This function returns the amount of data that was read (this could be less 5038 * than @nbytes if the end of the file was reached) or a negative error value. 5039 **/ 5040 static ssize_t lpfc_idiag_mbxacc_read(struct file * file,char __user * buf,size_t nbytes,loff_t * ppos)5041 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, 5042 loff_t *ppos) 5043 { 5044 struct lpfc_debug *debug = file->private_data; 5045 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5046 char *pbuffer; 5047 int len = 0; 5048 5049 /* This is a user read operation */ 5050 debug->op = LPFC_IDIAG_OP_RD; 5051 5052 if (!debug->buffer) 5053 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); 5054 if (!debug->buffer) 5055 return 0; 5056 pbuffer = debug->buffer; 5057 5058 if (*ppos) 5059 return 0; 5060 5061 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && 5062 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) 5063 return 0; 5064 5065 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); 5066 5067 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5068 } 5069 5070 /** 5071 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands 5072 * @file: The file pointer to read from. 5073 * @buf: The buffer to copy the user data from. 5074 * @nbytes: The number of bytes to get. 5075 * @ppos: The position in the file to start reading from. 5076 * 5077 * This routine get the debugfs idiag command struct from user space and then 5078 * perform the syntax check for driver mailbox command (dump) and sets up the 5079 * necessary states in the idiag command struct accordingly. 5080 * 5081 * It returns the @nbytges passing in from debugfs user space when successful. 5082 * In case of error conditions, it returns proper error code back to the user 5083 * space. 5084 **/ 5085 static ssize_t lpfc_idiag_mbxacc_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)5086 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, 5087 size_t nbytes, loff_t *ppos) 5088 { 5089 struct lpfc_debug *debug = file->private_data; 5090 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; 5091 int rc; 5092 5093 /* This is a user write operation */ 5094 debug->op = LPFC_IDIAG_OP_WR; 5095 5096 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5097 if (rc < 0) 5098 return rc; 5099 5100 /* Sanity check on command line arguments */ 5101 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5102 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5103 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5104 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5105 5106 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { 5107 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) 5108 goto error_out; 5109 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && 5110 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5111 goto error_out; 5112 if (mbx_word_cnt > sizeof(MAILBOX_t)) 5113 goto error_out; 5114 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { 5115 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) 5116 goto error_out; 5117 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && 5118 (mbx_dump_map != LPFC_MBX_DMP_ALL)) 5119 goto error_out; 5120 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) 5121 goto error_out; 5122 if (mbx_mbox_cmd != 0x9b) 5123 goto error_out; 5124 } else 5125 goto error_out; 5126 5127 if (mbx_word_cnt == 0) 5128 goto error_out; 5129 if (rc != LPFC_MBX_DMP_ARG) 5130 goto error_out; 5131 if (mbx_mbox_cmd & ~0xff) 5132 goto error_out; 5133 5134 /* condition for stop mailbox dump */ 5135 if (mbx_dump_cnt == 0) 5136 goto reset_out; 5137 5138 return nbytes; 5139 5140 reset_out: 5141 /* Clean out command structure on command error out */ 5142 memset(&idiag, 0, sizeof(idiag)); 5143 return nbytes; 5144 5145 error_out: 5146 /* Clean out command structure on command error out */ 5147 memset(&idiag, 0, sizeof(idiag)); 5148 return -EINVAL; 5149 } 5150 5151 /** 5152 * lpfc_idiag_extacc_avail_get - get the available extents information 5153 * @phba: pointer to lpfc hba data structure. 5154 * @pbuffer: pointer to internal buffer. 5155 * @len: length into the internal buffer data has been copied. 5156 * 5157 * Description: 5158 * This routine is to get the available extent information. 5159 * 5160 * Returns: 5161 * overall length of the data read into the internal buffer. 5162 **/ 5163 static int lpfc_idiag_extacc_avail_get(struct lpfc_hba * phba,char * pbuffer,int len)5164 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) 5165 { 5166 uint16_t ext_cnt = 0, ext_size = 0; 5167 5168 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5169 "\nAvailable Extents Information:\n"); 5170 5171 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5172 "\tPort Available VPI extents: "); 5173 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, 5174 &ext_cnt, &ext_size); 5175 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5176 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5177 5178 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5179 "\tPort Available VFI extents: "); 5180 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, 5181 &ext_cnt, &ext_size); 5182 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5183 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5184 5185 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5186 "\tPort Available RPI extents: "); 5187 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, 5188 &ext_cnt, &ext_size); 5189 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5190 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5191 5192 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5193 "\tPort Available XRI extents: "); 5194 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, 5195 &ext_cnt, &ext_size); 5196 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5197 "Count %3d, Size %3d\n", ext_cnt, ext_size); 5198 5199 return len; 5200 } 5201 5202 /** 5203 * lpfc_idiag_extacc_alloc_get - get the allocated extents information 5204 * @phba: pointer to lpfc hba data structure. 5205 * @pbuffer: pointer to internal buffer. 5206 * @len: length into the internal buffer data has been copied. 5207 * 5208 * Description: 5209 * This routine is to get the allocated extent information. 5210 * 5211 * Returns: 5212 * overall length of the data read into the internal buffer. 5213 **/ 5214 static int lpfc_idiag_extacc_alloc_get(struct lpfc_hba * phba,char * pbuffer,int len)5215 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) 5216 { 5217 uint16_t ext_cnt, ext_size; 5218 int rc; 5219 5220 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5221 "\nAllocated Extents Information:\n"); 5222 5223 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5224 "\tHost Allocated VPI extents: "); 5225 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, 5226 &ext_cnt, &ext_size); 5227 if (!rc) 5228 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5229 "Port %d Extent %3d, Size %3d\n", 5230 phba->brd_no, ext_cnt, ext_size); 5231 else 5232 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5233 "N/A\n"); 5234 5235 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5236 "\tHost Allocated VFI extents: "); 5237 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, 5238 &ext_cnt, &ext_size); 5239 if (!rc) 5240 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5241 "Port %d Extent %3d, Size %3d\n", 5242 phba->brd_no, ext_cnt, ext_size); 5243 else 5244 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5245 "N/A\n"); 5246 5247 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5248 "\tHost Allocated RPI extents: "); 5249 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, 5250 &ext_cnt, &ext_size); 5251 if (!rc) 5252 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5253 "Port %d Extent %3d, Size %3d\n", 5254 phba->brd_no, ext_cnt, ext_size); 5255 else 5256 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5257 "N/A\n"); 5258 5259 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5260 "\tHost Allocated XRI extents: "); 5261 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, 5262 &ext_cnt, &ext_size); 5263 if (!rc) 5264 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5265 "Port %d Extent %3d, Size %3d\n", 5266 phba->brd_no, ext_cnt, ext_size); 5267 else 5268 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5269 "N/A\n"); 5270 5271 return len; 5272 } 5273 5274 /** 5275 * lpfc_idiag_extacc_drivr_get - get driver extent information 5276 * @phba: pointer to lpfc hba data structure. 5277 * @pbuffer: pointer to internal buffer. 5278 * @len: length into the internal buffer data has been copied. 5279 * 5280 * Description: 5281 * This routine is to get the driver extent information. 5282 * 5283 * Returns: 5284 * overall length of the data read into the internal buffer. 5285 **/ 5286 static int lpfc_idiag_extacc_drivr_get(struct lpfc_hba * phba,char * pbuffer,int len)5287 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) 5288 { 5289 struct lpfc_rsrc_blks *rsrc_blks; 5290 int index; 5291 5292 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5293 "\nDriver Extents Information:\n"); 5294 5295 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5296 "\tVPI extents:\n"); 5297 index = 0; 5298 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { 5299 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5300 "\t\tBlock %3d: Start %4d, Count %4d\n", 5301 index, rsrc_blks->rsrc_start, 5302 rsrc_blks->rsrc_size); 5303 index++; 5304 } 5305 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5306 "\tVFI extents:\n"); 5307 index = 0; 5308 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, 5309 list) { 5310 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5311 "\t\tBlock %3d: Start %4d, Count %4d\n", 5312 index, rsrc_blks->rsrc_start, 5313 rsrc_blks->rsrc_size); 5314 index++; 5315 } 5316 5317 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5318 "\tRPI extents:\n"); 5319 index = 0; 5320 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, 5321 list) { 5322 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5323 "\t\tBlock %3d: Start %4d, Count %4d\n", 5324 index, rsrc_blks->rsrc_start, 5325 rsrc_blks->rsrc_size); 5326 index++; 5327 } 5328 5329 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5330 "\tXRI extents:\n"); 5331 index = 0; 5332 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, 5333 list) { 5334 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, 5335 "\t\tBlock %3d: Start %4d, Count %4d\n", 5336 index, rsrc_blks->rsrc_start, 5337 rsrc_blks->rsrc_size); 5338 index++; 5339 } 5340 5341 return len; 5342 } 5343 5344 /** 5345 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands 5346 * @file: The file pointer to read from. 5347 * @buf: The buffer to copy the user data from. 5348 * @nbytes: The number of bytes to get. 5349 * @ppos: The position in the file to start reading from. 5350 * 5351 * This routine get the debugfs idiag command struct from user space and then 5352 * perform the syntax check for extent information access commands and sets 5353 * up the necessary states in the idiag command struct accordingly. 5354 * 5355 * It returns the @nbytges passing in from debugfs user space when successful. 5356 * In case of error conditions, it returns proper error code back to the user 5357 * space. 5358 **/ 5359 static ssize_t lpfc_idiag_extacc_write(struct file * file,const char __user * buf,size_t nbytes,loff_t * ppos)5360 lpfc_idiag_extacc_write(struct file *file, const char __user *buf, 5361 size_t nbytes, loff_t *ppos) 5362 { 5363 struct lpfc_debug *debug = file->private_data; 5364 uint32_t ext_map; 5365 int rc; 5366 5367 /* This is a user write operation */ 5368 debug->op = LPFC_IDIAG_OP_WR; 5369 5370 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); 5371 if (rc < 0) 5372 return rc; 5373 5374 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5375 5376 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5377 goto error_out; 5378 if (rc != LPFC_EXT_ACC_CMD_ARG) 5379 goto error_out; 5380 if (!(ext_map & LPFC_EXT_ACC_ALL)) 5381 goto error_out; 5382 5383 return nbytes; 5384 error_out: 5385 /* Clean out command structure on command error out */ 5386 memset(&idiag, 0, sizeof(idiag)); 5387 return -EINVAL; 5388 } 5389 5390 /** 5391 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information 5392 * @file: The file pointer to read from. 5393 * @buf: The buffer to copy the data to. 5394 * @nbytes: The number of bytes to read. 5395 * @ppos: The position in the file to start reading from. 5396 * 5397 * Description: 5398 * This routine reads data from the proper extent information according to 5399 * the idiag command, and copies to user @buf. 5400 * 5401 * Returns: 5402 * This function returns the amount of data that was read (this could be less 5403 * than @nbytes if the end of the file was reached) or a negative error value. 5404 **/ 5405 static ssize_t lpfc_idiag_extacc_read(struct file * file,char __user * buf,size_t nbytes,loff_t * ppos)5406 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, 5407 loff_t *ppos) 5408 { 5409 struct lpfc_debug *debug = file->private_data; 5410 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5411 char *pbuffer; 5412 uint32_t ext_map; 5413 int len = 0; 5414 5415 /* This is a user read operation */ 5416 debug->op = LPFC_IDIAG_OP_RD; 5417 5418 if (!debug->buffer) 5419 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); 5420 if (!debug->buffer) 5421 return 0; 5422 pbuffer = debug->buffer; 5423 if (*ppos) 5424 return 0; 5425 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) 5426 return 0; 5427 5428 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; 5429 if (ext_map & LPFC_EXT_ACC_AVAIL) 5430 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); 5431 if (ext_map & LPFC_EXT_ACC_ALLOC) 5432 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); 5433 if (ext_map & LPFC_EXT_ACC_DRIVR) 5434 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); 5435 5436 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); 5437 } 5438 5439 static int lpfc_cgn_buffer_open(struct inode * inode,struct file * file)5440 lpfc_cgn_buffer_open(struct inode *inode, struct file *file) 5441 { 5442 struct lpfc_debug *debug; 5443 int rc = -ENOMEM; 5444 5445 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 5446 if (!debug) 5447 goto out; 5448 5449 debug->buffer = vmalloc(LPFC_CGN_BUF_SIZE); 5450 if (!debug->buffer) { 5451 kfree(debug); 5452 goto out; 5453 } 5454 5455 debug->i_private = inode->i_private; 5456 file->private_data = debug; 5457 5458 rc = 0; 5459 out: 5460 return rc; 5461 } 5462 5463 static ssize_t lpfc_cgn_buffer_read(struct file * file,char __user * buf,size_t nbytes,loff_t * ppos)5464 lpfc_cgn_buffer_read(struct file *file, char __user *buf, size_t nbytes, 5465 loff_t *ppos) 5466 { 5467 struct lpfc_debug *debug = file->private_data; 5468 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5469 char *buffer = debug->buffer; 5470 uint32_t *ptr; 5471 int cnt, len = 0; 5472 5473 if (!phba->sli4_hba.pc_sli4_params.mi_ver || !phba->cgn_i) { 5474 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5475 "Congestion Mgmt is not supported\n"); 5476 goto out; 5477 } 5478 ptr = (uint32_t *)phba->cgn_i->virt; 5479 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5480 "Congestion Buffer Header\n"); 5481 /* Dump the first 32 bytes */ 5482 cnt = 32; 5483 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5484 "000: %08x %08x %08x %08x %08x %08x %08x %08x\n", 5485 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3), 5486 *(ptr + 4), *(ptr + 5), *(ptr + 6), *(ptr + 7)); 5487 ptr += 8; 5488 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5489 "Congestion Buffer Data\n"); 5490 while (cnt < sizeof(struct lpfc_cgn_info)) { 5491 if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { 5492 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5493 "Truncated . . .\n"); 5494 goto out; 5495 } 5496 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5497 "%03x: %08x %08x %08x %08x " 5498 "%08x %08x %08x %08x\n", 5499 cnt, *ptr, *(ptr + 1), *(ptr + 2), 5500 *(ptr + 3), *(ptr + 4), *(ptr + 5), 5501 *(ptr + 6), *(ptr + 7)); 5502 cnt += 32; 5503 ptr += 8; 5504 } 5505 if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { 5506 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5507 "Truncated . . .\n"); 5508 goto out; 5509 } 5510 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5511 "Parameter Data\n"); 5512 ptr = (uint32_t *)&phba->cgn_p; 5513 len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, 5514 "%08x %08x %08x %08x\n", 5515 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3)); 5516 out: 5517 return simple_read_from_buffer(buf, nbytes, ppos, buffer, len); 5518 } 5519 5520 static int lpfc_cgn_buffer_release(struct inode * inode,struct file * file)5521 lpfc_cgn_buffer_release(struct inode *inode, struct file *file) 5522 { 5523 struct lpfc_debug *debug = file->private_data; 5524 5525 vfree(debug->buffer); 5526 kfree(debug); 5527 5528 return 0; 5529 } 5530 5531 static int lpfc_rx_monitor_open(struct inode * inode,struct file * file)5532 lpfc_rx_monitor_open(struct inode *inode, struct file *file) 5533 { 5534 struct lpfc_rx_monitor_debug *debug; 5535 int rc = -ENOMEM; 5536 5537 debug = kmalloc(sizeof(*debug), GFP_KERNEL); 5538 if (!debug) 5539 goto out; 5540 5541 debug->buffer = vmalloc(MAX_DEBUGFS_RX_INFO_SIZE); 5542 if (!debug->buffer) { 5543 kfree(debug); 5544 goto out; 5545 } 5546 5547 debug->i_private = inode->i_private; 5548 file->private_data = debug; 5549 5550 rc = 0; 5551 out: 5552 return rc; 5553 } 5554 5555 static ssize_t lpfc_rx_monitor_read(struct file * file,char __user * buf,size_t nbytes,loff_t * ppos)5556 lpfc_rx_monitor_read(struct file *file, char __user *buf, size_t nbytes, 5557 loff_t *ppos) 5558 { 5559 struct lpfc_rx_monitor_debug *debug = file->private_data; 5560 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; 5561 char *buffer = debug->buffer; 5562 5563 if (!phba->rx_monitor) { 5564 scnprintf(buffer, MAX_DEBUGFS_RX_INFO_SIZE, 5565 "Rx Monitor Info is empty.\n"); 5566 } else { 5567 lpfc_rx_monitor_report(phba, phba->rx_monitor, buffer, 5568 MAX_DEBUGFS_RX_INFO_SIZE, 5569 LPFC_MAX_RXMONITOR_ENTRY); 5570 } 5571 5572 return simple_read_from_buffer(buf, nbytes, ppos, buffer, 5573 strlen(buffer)); 5574 } 5575 5576 static int lpfc_rx_monitor_release(struct inode * inode,struct file * file)5577 lpfc_rx_monitor_release(struct inode *inode, struct file *file) 5578 { 5579 struct lpfc_rx_monitor_debug *debug = file->private_data; 5580 5581 vfree(debug->buffer); 5582 kfree(debug); 5583 5584 return 0; 5585 } 5586 5587 #undef lpfc_debugfs_op_disc_trc 5588 static const struct file_operations lpfc_debugfs_op_disc_trc = { 5589 .owner = THIS_MODULE, 5590 .open = lpfc_debugfs_disc_trc_open, 5591 .llseek = lpfc_debugfs_lseek, 5592 .read = lpfc_debugfs_read, 5593 .release = lpfc_debugfs_release, 5594 }; 5595 5596 #undef lpfc_debugfs_op_nodelist 5597 static const struct file_operations lpfc_debugfs_op_nodelist = { 5598 .owner = THIS_MODULE, 5599 .open = lpfc_debugfs_nodelist_open, 5600 .llseek = lpfc_debugfs_lseek, 5601 .read = lpfc_debugfs_read, 5602 .release = lpfc_debugfs_release, 5603 }; 5604 5605 #undef lpfc_debugfs_op_multixripools 5606 static const struct file_operations lpfc_debugfs_op_multixripools = { 5607 .owner = THIS_MODULE, 5608 .open = lpfc_debugfs_multixripools_open, 5609 .llseek = lpfc_debugfs_lseek, 5610 .read = lpfc_debugfs_read, 5611 .write = lpfc_debugfs_multixripools_write, 5612 .release = lpfc_debugfs_release, 5613 }; 5614 5615 #undef lpfc_debugfs_op_hbqinfo 5616 static const struct file_operations lpfc_debugfs_op_hbqinfo = { 5617 .owner = THIS_MODULE, 5618 .open = lpfc_debugfs_hbqinfo_open, 5619 .llseek = lpfc_debugfs_lseek, 5620 .read = lpfc_debugfs_read, 5621 .release = lpfc_debugfs_release, 5622 }; 5623 5624 #ifdef LPFC_HDWQ_LOCK_STAT 5625 #undef lpfc_debugfs_op_lockstat 5626 static const struct file_operations lpfc_debugfs_op_lockstat = { 5627 .owner = THIS_MODULE, 5628 .open = lpfc_debugfs_lockstat_open, 5629 .llseek = lpfc_debugfs_lseek, 5630 .read = lpfc_debugfs_read, 5631 .write = lpfc_debugfs_lockstat_write, 5632 .release = lpfc_debugfs_release, 5633 }; 5634 #endif 5635 5636 #undef lpfc_debugfs_ras_log 5637 static const struct file_operations lpfc_debugfs_ras_log = { 5638 .owner = THIS_MODULE, 5639 .open = lpfc_debugfs_ras_log_open, 5640 .llseek = lpfc_debugfs_lseek, 5641 .read = lpfc_debugfs_read, 5642 .release = lpfc_debugfs_ras_log_release, 5643 }; 5644 5645 #undef lpfc_debugfs_op_dumpHBASlim 5646 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { 5647 .owner = THIS_MODULE, 5648 .open = lpfc_debugfs_dumpHBASlim_open, 5649 .llseek = lpfc_debugfs_lseek, 5650 .read = lpfc_debugfs_read, 5651 .release = lpfc_debugfs_release, 5652 }; 5653 5654 #undef lpfc_debugfs_op_dumpHostSlim 5655 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { 5656 .owner = THIS_MODULE, 5657 .open = lpfc_debugfs_dumpHostSlim_open, 5658 .llseek = lpfc_debugfs_lseek, 5659 .read = lpfc_debugfs_read, 5660 .release = lpfc_debugfs_release, 5661 }; 5662 5663 #undef lpfc_debugfs_op_nvmestat 5664 static const struct file_operations lpfc_debugfs_op_nvmestat = { 5665 .owner = THIS_MODULE, 5666 .open = lpfc_debugfs_nvmestat_open, 5667 .llseek = lpfc_debugfs_lseek, 5668 .read = lpfc_debugfs_read, 5669 .write = lpfc_debugfs_nvmestat_write, 5670 .release = lpfc_debugfs_release, 5671 }; 5672 5673 #undef lpfc_debugfs_op_scsistat 5674 static const struct file_operations lpfc_debugfs_op_scsistat = { 5675 .owner = THIS_MODULE, 5676 .open = lpfc_debugfs_scsistat_open, 5677 .llseek = lpfc_debugfs_lseek, 5678 .read = lpfc_debugfs_read, 5679 .write = lpfc_debugfs_scsistat_write, 5680 .release = lpfc_debugfs_release, 5681 }; 5682 5683 #undef lpfc_debugfs_op_ioktime 5684 static const struct file_operations lpfc_debugfs_op_ioktime = { 5685 .owner = THIS_MODULE, 5686 .open = lpfc_debugfs_ioktime_open, 5687 .llseek = lpfc_debugfs_lseek, 5688 .read = lpfc_debugfs_read, 5689 .write = lpfc_debugfs_ioktime_write, 5690 .release = lpfc_debugfs_release, 5691 }; 5692 5693 #undef lpfc_debugfs_op_nvmeio_trc 5694 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { 5695 .owner = THIS_MODULE, 5696 .open = lpfc_debugfs_nvmeio_trc_open, 5697 .llseek = lpfc_debugfs_lseek, 5698 .read = lpfc_debugfs_read, 5699 .write = lpfc_debugfs_nvmeio_trc_write, 5700 .release = lpfc_debugfs_release, 5701 }; 5702 5703 #undef lpfc_debugfs_op_hdwqstat 5704 static const struct file_operations lpfc_debugfs_op_hdwqstat = { 5705 .owner = THIS_MODULE, 5706 .open = lpfc_debugfs_hdwqstat_open, 5707 .llseek = lpfc_debugfs_lseek, 5708 .read = lpfc_debugfs_read, 5709 .write = lpfc_debugfs_hdwqstat_write, 5710 .release = lpfc_debugfs_release, 5711 }; 5712 5713 #undef lpfc_debugfs_op_dif_err 5714 static const struct file_operations lpfc_debugfs_op_dif_err = { 5715 .owner = THIS_MODULE, 5716 .open = simple_open, 5717 .llseek = lpfc_debugfs_lseek, 5718 .read = lpfc_debugfs_dif_err_read, 5719 .write = lpfc_debugfs_dif_err_write, 5720 .release = lpfc_debugfs_dif_err_release, 5721 }; 5722 5723 #undef lpfc_debugfs_op_slow_ring_trc 5724 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { 5725 .owner = THIS_MODULE, 5726 .open = lpfc_debugfs_slow_ring_trc_open, 5727 .llseek = lpfc_debugfs_lseek, 5728 .read = lpfc_debugfs_read, 5729 .release = lpfc_debugfs_release, 5730 }; 5731 5732 static struct dentry *lpfc_debugfs_root = NULL; 5733 static atomic_t lpfc_debugfs_hba_count; 5734 5735 /* 5736 * File operations for the iDiag debugfs 5737 */ 5738 #undef lpfc_idiag_op_pciCfg 5739 static const struct file_operations lpfc_idiag_op_pciCfg = { 5740 .owner = THIS_MODULE, 5741 .open = lpfc_idiag_open, 5742 .llseek = lpfc_debugfs_lseek, 5743 .read = lpfc_idiag_pcicfg_read, 5744 .write = lpfc_idiag_pcicfg_write, 5745 .release = lpfc_idiag_cmd_release, 5746 }; 5747 5748 #undef lpfc_idiag_op_barAcc 5749 static const struct file_operations lpfc_idiag_op_barAcc = { 5750 .owner = THIS_MODULE, 5751 .open = lpfc_idiag_open, 5752 .llseek = lpfc_debugfs_lseek, 5753 .read = lpfc_idiag_baracc_read, 5754 .write = lpfc_idiag_baracc_write, 5755 .release = lpfc_idiag_cmd_release, 5756 }; 5757 5758 #undef lpfc_idiag_op_queInfo 5759 static const struct file_operations lpfc_idiag_op_queInfo = { 5760 .owner = THIS_MODULE, 5761 .open = lpfc_idiag_open, 5762 .read = lpfc_idiag_queinfo_read, 5763 .release = lpfc_idiag_release, 5764 }; 5765 5766 #undef lpfc_idiag_op_queAcc 5767 static const struct file_operations lpfc_idiag_op_queAcc = { 5768 .owner = THIS_MODULE, 5769 .open = lpfc_idiag_open, 5770 .llseek = lpfc_debugfs_lseek, 5771 .read = lpfc_idiag_queacc_read, 5772 .write = lpfc_idiag_queacc_write, 5773 .release = lpfc_idiag_cmd_release, 5774 }; 5775 5776 #undef lpfc_idiag_op_drbAcc 5777 static const struct file_operations lpfc_idiag_op_drbAcc = { 5778 .owner = THIS_MODULE, 5779 .open = lpfc_idiag_open, 5780 .llseek = lpfc_debugfs_lseek, 5781 .read = lpfc_idiag_drbacc_read, 5782 .write = lpfc_idiag_drbacc_write, 5783 .release = lpfc_idiag_cmd_release, 5784 }; 5785 5786 #undef lpfc_idiag_op_ctlAcc 5787 static const struct file_operations lpfc_idiag_op_ctlAcc = { 5788 .owner = THIS_MODULE, 5789 .open = lpfc_idiag_open, 5790 .llseek = lpfc_debugfs_lseek, 5791 .read = lpfc_idiag_ctlacc_read, 5792 .write = lpfc_idiag_ctlacc_write, 5793 .release = lpfc_idiag_cmd_release, 5794 }; 5795 5796 #undef lpfc_idiag_op_mbxAcc 5797 static const struct file_operations lpfc_idiag_op_mbxAcc = { 5798 .owner = THIS_MODULE, 5799 .open = lpfc_idiag_open, 5800 .llseek = lpfc_debugfs_lseek, 5801 .read = lpfc_idiag_mbxacc_read, 5802 .write = lpfc_idiag_mbxacc_write, 5803 .release = lpfc_idiag_cmd_release, 5804 }; 5805 5806 #undef lpfc_idiag_op_extAcc 5807 static const struct file_operations lpfc_idiag_op_extAcc = { 5808 .owner = THIS_MODULE, 5809 .open = lpfc_idiag_open, 5810 .llseek = lpfc_debugfs_lseek, 5811 .read = lpfc_idiag_extacc_read, 5812 .write = lpfc_idiag_extacc_write, 5813 .release = lpfc_idiag_cmd_release, 5814 }; 5815 #undef lpfc_cgn_buffer_op 5816 static const struct file_operations lpfc_cgn_buffer_op = { 5817 .owner = THIS_MODULE, 5818 .open = lpfc_cgn_buffer_open, 5819 .llseek = lpfc_debugfs_lseek, 5820 .read = lpfc_cgn_buffer_read, 5821 .release = lpfc_cgn_buffer_release, 5822 }; 5823 5824 #undef lpfc_rx_monitor_op 5825 static const struct file_operations lpfc_rx_monitor_op = { 5826 .owner = THIS_MODULE, 5827 .open = lpfc_rx_monitor_open, 5828 .llseek = lpfc_debugfs_lseek, 5829 .read = lpfc_rx_monitor_read, 5830 .release = lpfc_rx_monitor_release, 5831 }; 5832 #endif 5833 5834 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command 5835 * @phba: Pointer to HBA context object. 5836 * @dmabuf: Pointer to a DMA buffer descriptor. 5837 * 5838 * Description: 5839 * This routine dump a bsg pass-through non-embedded mailbox command with 5840 * external buffer. 5841 **/ 5842 void lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba * phba,enum nemb_type nemb_tp,enum mbox_type mbox_tp,enum dma_type dma_tp,enum sta_type sta_tp,struct lpfc_dmabuf * dmabuf,uint32_t ext_buf)5843 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, 5844 enum mbox_type mbox_tp, enum dma_type dma_tp, 5845 enum sta_type sta_tp, 5846 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) 5847 { 5848 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5849 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; 5850 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5851 int len = 0; 5852 uint32_t do_dump = 0; 5853 uint32_t *pword; 5854 uint32_t i; 5855 5856 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) 5857 return; 5858 5859 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5860 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5861 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5862 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5863 5864 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || 5865 (*mbx_dump_cnt == 0) || 5866 (*mbx_word_cnt == 0)) 5867 return; 5868 5869 if (*mbx_mbox_cmd != 0x9B) 5870 return; 5871 5872 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { 5873 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { 5874 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; 5875 pr_err("\nRead mbox command (x%x), " 5876 "nemb:0x%x, extbuf_cnt:%d:\n", 5877 sta_tp, nemb_tp, ext_buf); 5878 } 5879 } 5880 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { 5881 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { 5882 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; 5883 pr_err("\nRead mbox buffer (x%x), " 5884 "nemb:0x%x, extbuf_seq:%d:\n", 5885 sta_tp, nemb_tp, ext_buf); 5886 } 5887 } 5888 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { 5889 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { 5890 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; 5891 pr_err("\nWrite mbox command (x%x), " 5892 "nemb:0x%x, extbuf_cnt:%d:\n", 5893 sta_tp, nemb_tp, ext_buf); 5894 } 5895 } 5896 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { 5897 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { 5898 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; 5899 pr_err("\nWrite mbox buffer (x%x), " 5900 "nemb:0x%x, extbuf_seq:%d:\n", 5901 sta_tp, nemb_tp, ext_buf); 5902 } 5903 } 5904 5905 /* dump buffer content */ 5906 if (do_dump) { 5907 pword = (uint32_t *)dmabuf->virt; 5908 for (i = 0; i < *mbx_word_cnt; i++) { 5909 if (!(i % 8)) { 5910 if (i != 0) 5911 pr_err("%s\n", line_buf); 5912 len = 0; 5913 len += scnprintf(line_buf+len, 5914 LPFC_MBX_ACC_LBUF_SZ-len, 5915 "%03d: ", i); 5916 } 5917 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5918 "%08x ", (uint32_t)*pword); 5919 pword++; 5920 } 5921 if ((i - 1) % 8) 5922 pr_err("%s\n", line_buf); 5923 (*mbx_dump_cnt)--; 5924 } 5925 5926 /* Clean out command structure on reaching dump count */ 5927 if (*mbx_dump_cnt == 0) 5928 memset(&idiag, 0, sizeof(idiag)); 5929 return; 5930 #endif 5931 } 5932 5933 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command 5934 * @phba: Pointer to HBA context object. 5935 * @dmabuf: Pointer to a DMA buffer descriptor. 5936 * 5937 * Description: 5938 * This routine dump a pass-through non-embedded mailbox command from issue 5939 * mailbox command. 5940 **/ 5941 void lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba * phba,MAILBOX_t * pmbox)5942 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) 5943 { 5944 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 5945 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; 5946 char line_buf[LPFC_MBX_ACC_LBUF_SZ]; 5947 int len = 0; 5948 uint32_t *pword; 5949 uint8_t *pbyte; 5950 uint32_t i, j; 5951 5952 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) 5953 return; 5954 5955 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; 5956 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; 5957 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; 5958 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; 5959 5960 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || 5961 (*mbx_dump_cnt == 0) || 5962 (*mbx_word_cnt == 0)) 5963 return; 5964 5965 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && 5966 (*mbx_mbox_cmd != pmbox->mbxCommand)) 5967 return; 5968 5969 /* dump buffer content */ 5970 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { 5971 pr_err("Mailbox command:0x%x dump by word:\n", 5972 pmbox->mbxCommand); 5973 pword = (uint32_t *)pmbox; 5974 for (i = 0; i < *mbx_word_cnt; i++) { 5975 if (!(i % 8)) { 5976 if (i != 0) 5977 pr_err("%s\n", line_buf); 5978 len = 0; 5979 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 5980 len += scnprintf(line_buf+len, 5981 LPFC_MBX_ACC_LBUF_SZ-len, 5982 "%03d: ", i); 5983 } 5984 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, 5985 "%08x ", 5986 ((uint32_t)*pword) & 0xffffffff); 5987 pword++; 5988 } 5989 if ((i - 1) % 8) 5990 pr_err("%s\n", line_buf); 5991 pr_err("\n"); 5992 } 5993 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { 5994 pr_err("Mailbox command:0x%x dump by byte:\n", 5995 pmbox->mbxCommand); 5996 pbyte = (uint8_t *)pmbox; 5997 for (i = 0; i < *mbx_word_cnt; i++) { 5998 if (!(i % 8)) { 5999 if (i != 0) 6000 pr_err("%s\n", line_buf); 6001 len = 0; 6002 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); 6003 len += scnprintf(line_buf+len, 6004 LPFC_MBX_ACC_LBUF_SZ-len, 6005 "%03d: ", i); 6006 } 6007 for (j = 0; j < 4; j++) { 6008 len += scnprintf(line_buf+len, 6009 LPFC_MBX_ACC_LBUF_SZ-len, 6010 "%02x", 6011 ((uint8_t)*pbyte) & 0xff); 6012 pbyte++; 6013 } 6014 len += scnprintf(line_buf+len, 6015 LPFC_MBX_ACC_LBUF_SZ-len, " "); 6016 } 6017 if ((i - 1) % 8) 6018 pr_err("%s\n", line_buf); 6019 pr_err("\n"); 6020 } 6021 (*mbx_dump_cnt)--; 6022 6023 /* Clean out command structure on reaching dump count */ 6024 if (*mbx_dump_cnt == 0) 6025 memset(&idiag, 0, sizeof(idiag)); 6026 return; 6027 #endif 6028 } 6029 6030 /** 6031 * lpfc_debugfs_initialize - Initialize debugfs for a vport 6032 * @vport: The vport pointer to initialize. 6033 * 6034 * Description: 6035 * When Debugfs is configured this routine sets up the lpfc debugfs file system. 6036 * If not already created, this routine will create the lpfc directory, and 6037 * lpfcX directory (for this HBA), and vportX directory for this vport. It will 6038 * also create each file used to access lpfc specific debugfs information. 6039 **/ 6040 inline void lpfc_debugfs_initialize(struct lpfc_vport * vport)6041 lpfc_debugfs_initialize(struct lpfc_vport *vport) 6042 { 6043 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6044 struct lpfc_hba *phba = vport->phba; 6045 char name[64]; 6046 uint32_t num, i; 6047 bool pport_setup = false; 6048 6049 if (!lpfc_debugfs_enable) 6050 return; 6051 6052 /* Setup lpfc root directory */ 6053 if (!lpfc_debugfs_root) { 6054 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); 6055 atomic_set(&lpfc_debugfs_hba_count, 0); 6056 } 6057 if (!lpfc_debugfs_start_time) 6058 lpfc_debugfs_start_time = jiffies; 6059 6060 /* Setup funcX directory for specific HBA PCI function */ 6061 snprintf(name, sizeof(name), "fn%d", phba->brd_no); 6062 if (!phba->hba_debugfs_root) { 6063 pport_setup = true; 6064 phba->hba_debugfs_root = 6065 debugfs_create_dir(name, lpfc_debugfs_root); 6066 atomic_inc(&lpfc_debugfs_hba_count); 6067 atomic_set(&phba->debugfs_vport_count, 0); 6068 6069 /* Multi-XRI pools */ 6070 snprintf(name, sizeof(name), "multixripools"); 6071 phba->debug_multixri_pools = 6072 debugfs_create_file(name, S_IFREG | 0644, 6073 phba->hba_debugfs_root, 6074 phba, 6075 &lpfc_debugfs_op_multixripools); 6076 if (IS_ERR(phba->debug_multixri_pools)) { 6077 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6078 "0527 Cannot create debugfs multixripools\n"); 6079 goto debug_failed; 6080 } 6081 6082 /* Congestion Info Buffer */ 6083 scnprintf(name, sizeof(name), "cgn_buffer"); 6084 phba->debug_cgn_buffer = 6085 debugfs_create_file(name, S_IFREG | 0644, 6086 phba->hba_debugfs_root, 6087 phba, &lpfc_cgn_buffer_op); 6088 if (IS_ERR(phba->debug_cgn_buffer)) { 6089 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6090 "6527 Cannot create debugfs " 6091 "cgn_buffer\n"); 6092 goto debug_failed; 6093 } 6094 6095 /* RX Monitor */ 6096 scnprintf(name, sizeof(name), "rx_monitor"); 6097 phba->debug_rx_monitor = 6098 debugfs_create_file(name, S_IFREG | 0644, 6099 phba->hba_debugfs_root, 6100 phba, &lpfc_rx_monitor_op); 6101 if (IS_ERR(phba->debug_rx_monitor)) { 6102 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6103 "6528 Cannot create debugfs " 6104 "rx_monitor\n"); 6105 goto debug_failed; 6106 } 6107 6108 /* RAS log */ 6109 snprintf(name, sizeof(name), "ras_log"); 6110 phba->debug_ras_log = 6111 debugfs_create_file(name, 0644, 6112 phba->hba_debugfs_root, 6113 phba, &lpfc_debugfs_ras_log); 6114 if (IS_ERR(phba->debug_ras_log)) { 6115 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6116 "6148 Cannot create debugfs" 6117 " ras_log\n"); 6118 goto debug_failed; 6119 } 6120 6121 /* Setup hbqinfo */ 6122 snprintf(name, sizeof(name), "hbqinfo"); 6123 phba->debug_hbqinfo = 6124 debugfs_create_file(name, S_IFREG | 0644, 6125 phba->hba_debugfs_root, 6126 phba, &lpfc_debugfs_op_hbqinfo); 6127 6128 #ifdef LPFC_HDWQ_LOCK_STAT 6129 /* Setup lockstat */ 6130 snprintf(name, sizeof(name), "lockstat"); 6131 phba->debug_lockstat = 6132 debugfs_create_file(name, S_IFREG | 0644, 6133 phba->hba_debugfs_root, 6134 phba, &lpfc_debugfs_op_lockstat); 6135 if (IS_ERR(phba->debug_lockstat)) { 6136 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6137 "4610 Can't create debugfs lockstat\n"); 6138 goto debug_failed; 6139 } 6140 #endif 6141 6142 /* Setup dumpHBASlim */ 6143 if (phba->sli_rev < LPFC_SLI_REV4) { 6144 snprintf(name, sizeof(name), "dumpHBASlim"); 6145 phba->debug_dumpHBASlim = 6146 debugfs_create_file(name, 6147 S_IFREG|S_IRUGO|S_IWUSR, 6148 phba->hba_debugfs_root, 6149 phba, &lpfc_debugfs_op_dumpHBASlim); 6150 } else 6151 phba->debug_dumpHBASlim = NULL; 6152 6153 /* Setup dumpHostSlim */ 6154 if (phba->sli_rev < LPFC_SLI_REV4) { 6155 snprintf(name, sizeof(name), "dumpHostSlim"); 6156 phba->debug_dumpHostSlim = 6157 debugfs_create_file(name, 6158 S_IFREG|S_IRUGO|S_IWUSR, 6159 phba->hba_debugfs_root, 6160 phba, &lpfc_debugfs_op_dumpHostSlim); 6161 } else 6162 phba->debug_dumpHostSlim = NULL; 6163 6164 /* Setup DIF Error Injections */ 6165 snprintf(name, sizeof(name), "InjErrLBA"); 6166 phba->debug_InjErrLBA = 6167 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6168 phba->hba_debugfs_root, 6169 phba, &lpfc_debugfs_op_dif_err); 6170 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; 6171 6172 snprintf(name, sizeof(name), "InjErrNPortID"); 6173 phba->debug_InjErrNPortID = 6174 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6175 phba->hba_debugfs_root, 6176 phba, &lpfc_debugfs_op_dif_err); 6177 6178 snprintf(name, sizeof(name), "InjErrWWPN"); 6179 phba->debug_InjErrWWPN = 6180 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6181 phba->hba_debugfs_root, 6182 phba, &lpfc_debugfs_op_dif_err); 6183 6184 snprintf(name, sizeof(name), "writeGuardInjErr"); 6185 phba->debug_writeGuard = 6186 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6187 phba->hba_debugfs_root, 6188 phba, &lpfc_debugfs_op_dif_err); 6189 6190 snprintf(name, sizeof(name), "writeAppInjErr"); 6191 phba->debug_writeApp = 6192 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6193 phba->hba_debugfs_root, 6194 phba, &lpfc_debugfs_op_dif_err); 6195 6196 snprintf(name, sizeof(name), "writeRefInjErr"); 6197 phba->debug_writeRef = 6198 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6199 phba->hba_debugfs_root, 6200 phba, &lpfc_debugfs_op_dif_err); 6201 6202 snprintf(name, sizeof(name), "readGuardInjErr"); 6203 phba->debug_readGuard = 6204 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6205 phba->hba_debugfs_root, 6206 phba, &lpfc_debugfs_op_dif_err); 6207 6208 snprintf(name, sizeof(name), "readAppInjErr"); 6209 phba->debug_readApp = 6210 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6211 phba->hba_debugfs_root, 6212 phba, &lpfc_debugfs_op_dif_err); 6213 6214 snprintf(name, sizeof(name), "readRefInjErr"); 6215 phba->debug_readRef = 6216 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6217 phba->hba_debugfs_root, 6218 phba, &lpfc_debugfs_op_dif_err); 6219 6220 /* Setup slow ring trace */ 6221 if (lpfc_debugfs_max_slow_ring_trc) { 6222 num = lpfc_debugfs_max_slow_ring_trc - 1; 6223 if (num & lpfc_debugfs_max_slow_ring_trc) { 6224 /* Change to be a power of 2 */ 6225 num = lpfc_debugfs_max_slow_ring_trc; 6226 i = 0; 6227 while (num > 1) { 6228 num = num >> 1; 6229 i++; 6230 } 6231 lpfc_debugfs_max_slow_ring_trc = (1 << i); 6232 pr_err("lpfc_debugfs_max_disc_trc changed to " 6233 "%d\n", lpfc_debugfs_max_disc_trc); 6234 } 6235 } 6236 6237 snprintf(name, sizeof(name), "slow_ring_trace"); 6238 phba->debug_slow_ring_trc = 6239 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6240 phba->hba_debugfs_root, 6241 phba, &lpfc_debugfs_op_slow_ring_trc); 6242 if (!phba->slow_ring_trc) { 6243 phba->slow_ring_trc = kcalloc( 6244 lpfc_debugfs_max_slow_ring_trc, 6245 sizeof(struct lpfc_debugfs_trc), 6246 GFP_KERNEL); 6247 if (!phba->slow_ring_trc) { 6248 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6249 "0416 Cannot create debugfs " 6250 "slow_ring buffer\n"); 6251 goto debug_failed; 6252 } 6253 atomic_set(&phba->slow_ring_trc_cnt, 0); 6254 } 6255 6256 snprintf(name, sizeof(name), "nvmeio_trc"); 6257 phba->debug_nvmeio_trc = 6258 debugfs_create_file(name, 0644, 6259 phba->hba_debugfs_root, 6260 phba, &lpfc_debugfs_op_nvmeio_trc); 6261 6262 atomic_set(&phba->nvmeio_trc_cnt, 0); 6263 if (lpfc_debugfs_max_nvmeio_trc) { 6264 num = lpfc_debugfs_max_nvmeio_trc - 1; 6265 if (num & lpfc_debugfs_max_disc_trc) { 6266 /* Change to be a power of 2 */ 6267 num = lpfc_debugfs_max_nvmeio_trc; 6268 i = 0; 6269 while (num > 1) { 6270 num = num >> 1; 6271 i++; 6272 } 6273 lpfc_debugfs_max_nvmeio_trc = (1 << i); 6274 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6275 "0575 lpfc_debugfs_max_nvmeio_trc " 6276 "changed to %d\n", 6277 lpfc_debugfs_max_nvmeio_trc); 6278 } 6279 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; 6280 6281 /* Allocate trace buffer and initialize */ 6282 phba->nvmeio_trc = kzalloc( 6283 (sizeof(struct lpfc_debugfs_nvmeio_trc) * 6284 phba->nvmeio_trc_size), GFP_KERNEL); 6285 6286 if (!phba->nvmeio_trc) { 6287 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6288 "0576 Cannot create debugfs " 6289 "nvmeio_trc buffer\n"); 6290 goto nvmeio_off; 6291 } 6292 phba->nvmeio_trc_on = 1; 6293 phba->nvmeio_trc_output_idx = 0; 6294 phba->nvmeio_trc = NULL; 6295 } else { 6296 nvmeio_off: 6297 phba->nvmeio_trc_size = 0; 6298 phba->nvmeio_trc_on = 0; 6299 phba->nvmeio_trc_output_idx = 0; 6300 phba->nvmeio_trc = NULL; 6301 } 6302 } 6303 6304 snprintf(name, sizeof(name), "vport%d", vport->vpi); 6305 if (!vport->vport_debugfs_root) { 6306 vport->vport_debugfs_root = 6307 debugfs_create_dir(name, phba->hba_debugfs_root); 6308 atomic_inc(&phba->debugfs_vport_count); 6309 } 6310 6311 if (lpfc_debugfs_max_disc_trc) { 6312 num = lpfc_debugfs_max_disc_trc - 1; 6313 if (num & lpfc_debugfs_max_disc_trc) { 6314 /* Change to be a power of 2 */ 6315 num = lpfc_debugfs_max_disc_trc; 6316 i = 0; 6317 while (num > 1) { 6318 num = num >> 1; 6319 i++; 6320 } 6321 lpfc_debugfs_max_disc_trc = (1 << i); 6322 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n", 6323 lpfc_debugfs_max_disc_trc); 6324 } 6325 } 6326 6327 vport->disc_trc = kzalloc( 6328 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), 6329 GFP_KERNEL); 6330 6331 if (!vport->disc_trc) { 6332 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6333 "0418 Cannot create debugfs disc trace " 6334 "buffer\n"); 6335 goto debug_failed; 6336 } 6337 atomic_set(&vport->disc_trc_cnt, 0); 6338 6339 snprintf(name, sizeof(name), "discovery_trace"); 6340 vport->debug_disc_trc = 6341 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6342 vport->vport_debugfs_root, 6343 vport, &lpfc_debugfs_op_disc_trc); 6344 snprintf(name, sizeof(name), "nodelist"); 6345 vport->debug_nodelist = 6346 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6347 vport->vport_debugfs_root, 6348 vport, &lpfc_debugfs_op_nodelist); 6349 6350 snprintf(name, sizeof(name), "nvmestat"); 6351 vport->debug_nvmestat = 6352 debugfs_create_file(name, 0644, 6353 vport->vport_debugfs_root, 6354 vport, &lpfc_debugfs_op_nvmestat); 6355 6356 snprintf(name, sizeof(name), "scsistat"); 6357 vport->debug_scsistat = 6358 debugfs_create_file(name, 0644, 6359 vport->vport_debugfs_root, 6360 vport, &lpfc_debugfs_op_scsistat); 6361 if (IS_ERR(vport->debug_scsistat)) { 6362 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6363 "4611 Cannot create debugfs scsistat\n"); 6364 goto debug_failed; 6365 } 6366 6367 snprintf(name, sizeof(name), "ioktime"); 6368 vport->debug_ioktime = 6369 debugfs_create_file(name, 0644, 6370 vport->vport_debugfs_root, 6371 vport, &lpfc_debugfs_op_ioktime); 6372 if (IS_ERR(vport->debug_ioktime)) { 6373 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 6374 "0815 Cannot create debugfs ioktime\n"); 6375 goto debug_failed; 6376 } 6377 6378 snprintf(name, sizeof(name), "hdwqstat"); 6379 vport->debug_hdwqstat = 6380 debugfs_create_file(name, 0644, 6381 vport->vport_debugfs_root, 6382 vport, &lpfc_debugfs_op_hdwqstat); 6383 6384 /* 6385 * The following section is for additional directories/files for the 6386 * physical port. 6387 */ 6388 6389 if (!pport_setup) 6390 goto debug_failed; 6391 6392 /* 6393 * iDiag debugfs root entry points for SLI4 device only 6394 */ 6395 if (phba->sli_rev < LPFC_SLI_REV4) 6396 goto debug_failed; 6397 6398 snprintf(name, sizeof(name), "iDiag"); 6399 if (!phba->idiag_root) { 6400 phba->idiag_root = 6401 debugfs_create_dir(name, phba->hba_debugfs_root); 6402 /* Initialize iDiag data structure */ 6403 memset(&idiag, 0, sizeof(idiag)); 6404 } 6405 6406 /* iDiag read PCI config space */ 6407 snprintf(name, sizeof(name), "pciCfg"); 6408 if (!phba->idiag_pci_cfg) { 6409 phba->idiag_pci_cfg = 6410 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6411 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); 6412 idiag.offset.last_rd = 0; 6413 } 6414 6415 /* iDiag PCI BAR access */ 6416 snprintf(name, sizeof(name), "barAcc"); 6417 if (!phba->idiag_bar_acc) { 6418 phba->idiag_bar_acc = 6419 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6420 phba->idiag_root, phba, &lpfc_idiag_op_barAcc); 6421 idiag.offset.last_rd = 0; 6422 } 6423 6424 /* iDiag get PCI function queue information */ 6425 snprintf(name, sizeof(name), "queInfo"); 6426 if (!phba->idiag_que_info) { 6427 phba->idiag_que_info = 6428 debugfs_create_file(name, S_IFREG|S_IRUGO, 6429 phba->idiag_root, phba, &lpfc_idiag_op_queInfo); 6430 } 6431 6432 /* iDiag access PCI function queue */ 6433 snprintf(name, sizeof(name), "queAcc"); 6434 if (!phba->idiag_que_acc) { 6435 phba->idiag_que_acc = 6436 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6437 phba->idiag_root, phba, &lpfc_idiag_op_queAcc); 6438 } 6439 6440 /* iDiag access PCI function doorbell registers */ 6441 snprintf(name, sizeof(name), "drbAcc"); 6442 if (!phba->idiag_drb_acc) { 6443 phba->idiag_drb_acc = 6444 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6445 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); 6446 } 6447 6448 /* iDiag access PCI function control registers */ 6449 snprintf(name, sizeof(name), "ctlAcc"); 6450 if (!phba->idiag_ctl_acc) { 6451 phba->idiag_ctl_acc = 6452 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6453 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); 6454 } 6455 6456 /* iDiag access mbox commands */ 6457 snprintf(name, sizeof(name), "mbxAcc"); 6458 if (!phba->idiag_mbx_acc) { 6459 phba->idiag_mbx_acc = 6460 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, 6461 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); 6462 } 6463 6464 /* iDiag extents access commands */ 6465 if (phba->sli4_hba.extents_in_use) { 6466 snprintf(name, sizeof(name), "extAcc"); 6467 if (!phba->idiag_ext_acc) { 6468 phba->idiag_ext_acc = 6469 debugfs_create_file(name, 6470 S_IFREG|S_IRUGO|S_IWUSR, 6471 phba->idiag_root, phba, 6472 &lpfc_idiag_op_extAcc); 6473 } 6474 } 6475 6476 debug_failed: 6477 return; 6478 #endif 6479 } 6480 6481 /** 6482 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport 6483 * @vport: The vport pointer to remove from debugfs. 6484 * 6485 * Description: 6486 * When Debugfs is configured this routine removes debugfs file system elements 6487 * that are specific to this vport. It also checks to see if there are any 6488 * users left for the debugfs directories associated with the HBA and driver. If 6489 * this is the last user of the HBA directory or driver directory then it will 6490 * remove those from the debugfs infrastructure as well. 6491 **/ 6492 inline void lpfc_debugfs_terminate(struct lpfc_vport * vport)6493 lpfc_debugfs_terminate(struct lpfc_vport *vport) 6494 { 6495 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS 6496 struct lpfc_hba *phba = vport->phba; 6497 6498 kfree(vport->disc_trc); 6499 vport->disc_trc = NULL; 6500 6501 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ 6502 vport->debug_disc_trc = NULL; 6503 6504 debugfs_remove(vport->debug_nodelist); /* nodelist */ 6505 vport->debug_nodelist = NULL; 6506 6507 debugfs_remove(vport->debug_nvmestat); /* nvmestat */ 6508 vport->debug_nvmestat = NULL; 6509 6510 debugfs_remove(vport->debug_scsistat); /* scsistat */ 6511 vport->debug_scsistat = NULL; 6512 6513 debugfs_remove(vport->debug_ioktime); /* ioktime */ 6514 vport->debug_ioktime = NULL; 6515 6516 debugfs_remove(vport->debug_hdwqstat); /* hdwqstat */ 6517 vport->debug_hdwqstat = NULL; 6518 6519 if (vport->vport_debugfs_root) { 6520 debugfs_remove(vport->vport_debugfs_root); /* vportX */ 6521 vport->vport_debugfs_root = NULL; 6522 atomic_dec(&phba->debugfs_vport_count); 6523 } 6524 6525 if (atomic_read(&phba->debugfs_vport_count) == 0) { 6526 6527 debugfs_remove(phba->debug_multixri_pools); /* multixripools*/ 6528 phba->debug_multixri_pools = NULL; 6529 6530 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ 6531 phba->debug_hbqinfo = NULL; 6532 6533 debugfs_remove(phba->debug_cgn_buffer); 6534 phba->debug_cgn_buffer = NULL; 6535 6536 debugfs_remove(phba->debug_rx_monitor); 6537 phba->debug_rx_monitor = NULL; 6538 6539 debugfs_remove(phba->debug_ras_log); 6540 phba->debug_ras_log = NULL; 6541 6542 #ifdef LPFC_HDWQ_LOCK_STAT 6543 debugfs_remove(phba->debug_lockstat); /* lockstat */ 6544 phba->debug_lockstat = NULL; 6545 #endif 6546 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ 6547 phba->debug_dumpHBASlim = NULL; 6548 6549 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 6550 phba->debug_dumpHostSlim = NULL; 6551 6552 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ 6553 phba->debug_InjErrLBA = NULL; 6554 6555 debugfs_remove(phba->debug_InjErrNPortID); 6556 phba->debug_InjErrNPortID = NULL; 6557 6558 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ 6559 phba->debug_InjErrWWPN = NULL; 6560 6561 debugfs_remove(phba->debug_writeGuard); /* writeGuard */ 6562 phba->debug_writeGuard = NULL; 6563 6564 debugfs_remove(phba->debug_writeApp); /* writeApp */ 6565 phba->debug_writeApp = NULL; 6566 6567 debugfs_remove(phba->debug_writeRef); /* writeRef */ 6568 phba->debug_writeRef = NULL; 6569 6570 debugfs_remove(phba->debug_readGuard); /* readGuard */ 6571 phba->debug_readGuard = NULL; 6572 6573 debugfs_remove(phba->debug_readApp); /* readApp */ 6574 phba->debug_readApp = NULL; 6575 6576 debugfs_remove(phba->debug_readRef); /* readRef */ 6577 phba->debug_readRef = NULL; 6578 6579 kfree(phba->slow_ring_trc); 6580 phba->slow_ring_trc = NULL; 6581 6582 /* slow_ring_trace */ 6583 debugfs_remove(phba->debug_slow_ring_trc); 6584 phba->debug_slow_ring_trc = NULL; 6585 6586 debugfs_remove(phba->debug_nvmeio_trc); 6587 phba->debug_nvmeio_trc = NULL; 6588 6589 kfree(phba->nvmeio_trc); 6590 phba->nvmeio_trc = NULL; 6591 6592 /* 6593 * iDiag release 6594 */ 6595 if (phba->sli_rev == LPFC_SLI_REV4) { 6596 /* iDiag extAcc */ 6597 debugfs_remove(phba->idiag_ext_acc); 6598 phba->idiag_ext_acc = NULL; 6599 6600 /* iDiag mbxAcc */ 6601 debugfs_remove(phba->idiag_mbx_acc); 6602 phba->idiag_mbx_acc = NULL; 6603 6604 /* iDiag ctlAcc */ 6605 debugfs_remove(phba->idiag_ctl_acc); 6606 phba->idiag_ctl_acc = NULL; 6607 6608 /* iDiag drbAcc */ 6609 debugfs_remove(phba->idiag_drb_acc); 6610 phba->idiag_drb_acc = NULL; 6611 6612 /* iDiag queAcc */ 6613 debugfs_remove(phba->idiag_que_acc); 6614 phba->idiag_que_acc = NULL; 6615 6616 /* iDiag queInfo */ 6617 debugfs_remove(phba->idiag_que_info); 6618 phba->idiag_que_info = NULL; 6619 6620 /* iDiag barAcc */ 6621 debugfs_remove(phba->idiag_bar_acc); 6622 phba->idiag_bar_acc = NULL; 6623 6624 /* iDiag pciCfg */ 6625 debugfs_remove(phba->idiag_pci_cfg); 6626 phba->idiag_pci_cfg = NULL; 6627 6628 /* Finally remove the iDiag debugfs root */ 6629 debugfs_remove(phba->idiag_root); 6630 phba->idiag_root = NULL; 6631 } 6632 6633 if (phba->hba_debugfs_root) { 6634 debugfs_remove(phba->hba_debugfs_root); /* fnX */ 6635 phba->hba_debugfs_root = NULL; 6636 atomic_dec(&lpfc_debugfs_hba_count); 6637 } 6638 6639 if (atomic_read(&lpfc_debugfs_hba_count) == 0) { 6640 debugfs_remove(lpfc_debugfs_root); /* lpfc */ 6641 lpfc_debugfs_root = NULL; 6642 } 6643 } 6644 #endif 6645 return; 6646 } 6647 6648 /* 6649 * Driver debug utility routines outside of debugfs. The debug utility 6650 * routines implemented here is intended to be used in the instrumented 6651 * debug driver for debugging host or port issues. 6652 */ 6653 6654 /** 6655 * lpfc_debug_dump_all_queues - dump all the queues with a hba 6656 * @phba: Pointer to HBA context object. 6657 * 6658 * This function dumps entries of all the queues asociated with the @phba. 6659 **/ 6660 void lpfc_debug_dump_all_queues(struct lpfc_hba * phba)6661 lpfc_debug_dump_all_queues(struct lpfc_hba *phba) 6662 { 6663 int idx; 6664 6665 /* 6666 * Dump Work Queues (WQs) 6667 */ 6668 lpfc_debug_dump_wq(phba, DUMP_MBX, 0); 6669 lpfc_debug_dump_wq(phba, DUMP_ELS, 0); 6670 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); 6671 6672 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6673 lpfc_debug_dump_wq(phba, DUMP_IO, idx); 6674 6675 lpfc_debug_dump_hdr_rq(phba); 6676 lpfc_debug_dump_dat_rq(phba); 6677 /* 6678 * Dump Complete Queues (CQs) 6679 */ 6680 lpfc_debug_dump_cq(phba, DUMP_MBX, 0); 6681 lpfc_debug_dump_cq(phba, DUMP_ELS, 0); 6682 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); 6683 6684 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6685 lpfc_debug_dump_cq(phba, DUMP_IO, idx); 6686 6687 /* 6688 * Dump Event Queues (EQs) 6689 */ 6690 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) 6691 lpfc_debug_dump_hba_eq(phba, idx); 6692 } 6693